JP4073891B2 - Drive force transmission member connection structure - Google Patents

Description

  The present invention relates to, for example, a copying machine that prints and outputs image information obtained by scanning an image of a document, a printer that prints and outputs transmitted image information, and image information obtained by scanning an image of a document. The present invention relates to a driving force transmission device provided in various devices typified by image processing apparatuses such as a facsimile that transmits image processing and a scanner that scans an image of a document to obtain image information. The present invention relates to a structure for connecting driving force transmission members such as a gear member and a pulley member.

  A copying machine that prints and outputs image information obtained by scanning an image of a document, a printer that prints and outputs image information that has been transmitted, a facsimile that transmits and processes image information obtained by scanning an image of a document, In addition, in an image information processing apparatus such as a scanner that obtains image information by scanning a document image, in order to provide a user-friendly, more convenient function, and a cheaper apparatus, one after another. New models are being developed.

  Under such circumstances, a driving force transmission mechanism that transmits power for driving various devices and members incorporated in the image information processing apparatus from a drive source to the devices and members is a new model development. Accordingly, various driving force transmission parts have been created that have been developed and improved accordingly, and that transmit driving force by rotating along with this. For this driving force transmission component, for example, a plurality of components consisting of a single driving force transmission member, such as a gear member having only one gear portion and a pulley member having only one pulley portion, and a plurality of gear portions and pulley portions can be selected. There are parts that are integrally formed by combining them. Hereinafter, a component integrally formed by selectively combining a gear portion and a pulley portion is referred to as a composite driving force transmission component.

  However, since a large number of driving force transmission parts are used in the image information processing apparatus, there are many driving force transmission parts that are similar to each other, and the driving force transmission parts that are newly created as new models are developed. There are many driving force transmission parts similar to the driving force transmission parts used in existing models. Here, taking a driving force transmission component having a gear portion as an example, the types of driving force transmission components will be described. The main factors that divide the types of driving force transmission components include the number of teeth, the module, the tooth width, and the material. The driving force transmission component is arranged at a proper position of the driving force transmission device due to these main factors. In addition to these main factors, there are various factors relating to the type of driving force transmitting component, such as the shaft diameter, the number of ribs, and the rib shape.

  Now, in the image information processing apparatus, except for some special driving force transmission parts, since the resin molding is generally performed using a mold, the more types of driving force transmission parts used, the more As a result, the number of molds for molding the driving force transmission component increases, the productivity of the image information processing apparatus deteriorates, and the manufacturing cost is affected and increases. On the other hand, when developing image information processing devices, it is possible to use the same type of driving force transmission parts as much as possible and to use driving force transmission parts in common even for different models including existing models. It is possible to devise measures to reduce the types of driving force transmission parts, reduce the mold cost, and suppress the increase in the manufacturing cost of the image information processing apparatus and consequently the product price of the image information processing apparatus. .

  However, as described above, the driving force transmission parts include composite type driving force transmission parts 1a, 1b, and 1c as shown in FIGS. 86 (1) to 86 (3). 1a to 1c have the same axis, and two gear portions 2a, 2b; 2c, 2d; 2e, 2f adjacent in the axial direction are integrally formed, and each gear portion 2a, 2b, The driving force can be transmitted between the gear portions 2c and 2d and between the gear portions 2e and 2f. The composite driving force transmission component is not limited to a component in which two gear portions are integrally formed, but also includes a component in which a gear portion and a pulley portion are integrally formed, and a component in which two pulley portions are integrally formed. .

  Such a composite type driving force transmission component is necessary for designing the driving force transmission mechanism of the image information processing apparatus, but is common in comparison with a single driving force transmission component that does not combine the driving force transmission member. The locations that can be used for the are very low and difficult to use in common. In addition, the composite driving force transmission component is more complicated in shape than a single driving force transmission component that does not combine a driving force transmission member, so that the mold cost is also expensive. Furthermore, it is difficult to reduce the types of such composite driving force transmission parts, and at present, such a device has not been made.

  Apart from such problems, Patent Document 1 discloses that one gear member and two pulley members, which are a plurality of driving force transmission members that are rotatable around the same axis and are formed separately, A structure for rotating and coupling the driving force so as to be transmitted is disclosed. Each pulley member and the gear member are arranged so as to sandwich the gear member by each pulley member, and a protruding portion formed on each pulley member and a claw portion formed on the gear member are formed on each pulley member. By engaging in the through hole, the rotational force of the gear member can be transmitted to each pulley member adjacent in the axial direction of the gear.

Japanese Patent Laid-Open No. 4-246025

  Based on the technique disclosed in Patent Document 1, as shown in FIGS. 87 (1) to 87 (3), a gear member 4a having a convex coupling portion 3a and a gear having a concave coupling portion 3b. It is conceivable to assemble the composite driving force transmitting component 5 by fitting the convex connecting portion 3a to the concave connecting portion 3b and connecting the member 4b so that the driving force can be transmitted. However, such a device causes the following two problems.

  First, in the case of the same type of driving force transmission member, that is, a gear member, when combining the gear members having the same principal factors described above to form a composite driving force transmission component, Although there is only one type, two types of gear members are required: a gear member in which a convex coupling portion is formed and a gear member in which a concave coupling portion is formed. Second, when combining multiple different types of gear members to form a composite drive force transmission component, the same type must be used to enable assembly of all the composite drive force transmission components that can be combined. As in the case of assembling these gear members, it is necessary to prepare two types of gear members for each type.

  This problem goes against the common use of driving force transmission parts and the reduction of the number of molds, and the devices shown in FIGS. 87 (1) to 87 (3) are as described above. The objectives of improving the productivity and reducing the manufacturing cost of a simple image information processing apparatus cannot be achieved.

  Accordingly, an object of the present invention is to provide a driving force transmission member that uses a plurality of driving force transmission members and can increase as many kinds of composite driving force transmission parts that can be assembled by each of these driving force transmission members. It is to provide a connecting structure.

The present invention according to claim 1 is a plurality of driving force transmission members in which at least one of a concave coupling portion and a convex coupling portion is formed on one side in the axial direction;
At least one of a concave connection part and a convex connection part is formed on one side in the axial direction, and at least one of a concave connection part and a convex connection part is formed on the other side in the axial direction A connecting member,
The plurality of driving force transmission members are selectively used to rotate around an axis via one or more connecting members by a concave connecting portion or a convex connecting portion of the driving force transmitting member and the connecting member. It is connected so as to be able to transmit driving force and detachable in the axial direction,
The connecting member is formed with a convex connecting portion at least on one side in the axial direction,
At least one of the driving force transmitting member, in the axial direction one side, smaller than the protrusion height of the convex coupling portion of the coupling member, and different has a depth, a plurality of concave coupling portions having a bottom Formed,
The drive force transmission member connection structure is characterized in that the convex connection portion of the connection member is selectively fitted into the concave connection portion of the drive force transmission member .

According to the present invention, by selectively fitting the convex coupling portion of the coupling member to the concave coupling portion of the driving force transmission member in which a plurality of concave coupling portions having different depths are formed, the coupling member and It is possible to select a distance from the driving force transmission member in which a plurality of concave coupling portions having different depths are formed. This makes it possible to select the interval between the driving force transmission members without separately using a member for setting the interval between the driving force transmission members.

A second aspect of the present invention provides a plurality of driving force transmission members in which at least one of a concave coupling portion and a convex coupling portion is formed on one side in the axial direction,
At least one of a concave connection part and a convex connection part is formed on one side in the axial direction, and at least one of a concave connection part and a convex connection part is formed on the other side in the axial direction A connecting member,
The plurality of driving force transmission members are selectively used to rotate around an axis via one or more connecting members by a concave connecting portion or a convex connecting portion of the driving force transmitting member and the connecting member. It is connected so as to be able to transmit driving force and detachable in the axial direction,
Each driving force transmission member has a concave connecting portion on one side in the axial direction.
A plurality of connecting members are interposed between the driving force transmitting members, and the connecting members are formed with convex connecting portions on both sides in the axial direction, and at least one side of the axial direction is provided with a convex connecting portion. A plurality of bottomed concave connecting portions having a different depth than the protruding height and having a different depth are formed.
Each connecting member has a driving force transmitting member connecting structure in which a convex connecting portion is selectively fitted and connected to a concave connecting portion.

According to the present invention, the connecting members interposed between the driving force transmission members are connected by selectively fitting the convex connecting portions to the plurality of concave connecting portions having different depths. The axial direction length of the connecting member can be selected. This makes it possible to select the interval between the driving force transmission members without separately using a member for setting the interval between the driving force transmission members.

According to a third aspect of the present invention, in the configuration of the first or second aspect of the present invention, each driving force transmitting member is inserted with a rotation supporting member that is rotatably supported by inserting each driving force transmitting member. A mating hole is formed,
A plurality of annular shaft diameter setting members that can be fitted into the respective fitting holes of the respective driving force transmitting members and that have insertion holes with different inner diameters are selectively used to fit into the respective fitting holes. In addition, each driving force transmitting member is rotatably supported by inserting the rotation support member through the insertion hole of the shaft diameter setting member.

  According to the present invention, each driving force transmission member is formed with a fitting hole penetrating in the axial direction, and a shaft diameter setting member can be fitted into each fitting hole of each driving force transmission member. The shaft diameter setting member has an annular shape, and a plurality of shaft diameter setting members having different inner diameters are selectively used and fitted into the fitting holes of the respective driving force transmission members. The rotation support member is inserted, and each driving force transmission member is rotatably supported. Thus, when each driving force transmission member is rotationally supported by a rotation support member having a different outer diameter, it is not necessary to prepare each driving force transmission member in correspondence with the outer diameter of the rotation support member. Even if the outer diameter of the rotation support member is different, only one type is required.

According to this invention of Claim 1 , the convex connection part of a connection member is selectively fitted in the concave connection part of the driving force transmission member in which the several concave connection part from which depth differs is formed. By this, it is possible to select the interval between the connecting member and the driving force transmitting member in which a plurality of concave connecting portions having different depths are formed. This makes it possible to select the interval between the driving force transmission members without separately using a member for setting the interval between the driving force transmission members.

According to the second aspect of the present invention, each connecting member interposed between each driving force transmitting member selectively fits the convex connecting portion to a plurality of concave connecting portions having different depths. By this, the axial length of the connecting member can be selected. This makes it possible to select the interval between the driving force transmission members without separately using a member for setting the interval between the driving force transmission members.

According to the third aspect of the present invention, each driving force transmission member is formed with a fitting hole penetrating in the axial direction, and a shaft diameter setting member is fitted in each fitting hole of each driving force transmission member. Is possible. The shaft diameter setting member has an annular shape, and a plurality of shaft diameter setting members having different inner diameters are selectively used and fitted into the fitting holes of the respective driving force transmission members, and the shaft diameter setting members are inserted into the insertion holes. The rotation support member is inserted, and each driving force transmission member is rotatably supported. Thus, when each driving force transmission member is rotationally supported by a rotation support member having a different outer diameter, it is not necessary to prepare each driving force transmission member corresponding to the outer diameter of the rotation support member. Even if the outer diameter of the rotation support member is different, only one type is required.

  FIG. 1 is a cross-sectional view schematically showing a main configuration of a copying machine as one of image processing apparatuses to which a connecting structure of driving force transmission members of the present invention is applied. FIG. 2 is a circulation diagram of the copying machine shown in FIG. FIG. 3 is a cross-sectional view schematically showing an automatic document feeder, a manual document placing device, and an optical device, and FIG. 3 is a cross-sectional view schematically showing an image forming device, a fixing device, and a sheet feeder of the copying machine shown in FIG. FIG.

  As shown in FIG. 1, a copying machine as a surface image processing apparatus is provided with a circulation type automatic document feeder 20 and a manual document placement device 30 for manually setting a document above a copying machine body 10. ing. In the copying machine main body 10, an optical device 40 is built in the upper portion, an image forming device 50 and a fixing device 60 are built in the middle portion, and a sheet feeding device 100 is partially exposed and built in the lower portion. Yes. A post-processing device 70 is provided on one side of the copying machine main body 10 (on the left side in FIG. 1).

  As shown in FIG. 2, a plurality of documents stacked and placed on the document placing table 21 of the circulation type automatic document feeder 20 are separated one by one by the document separating / feeding means 22, and the document feeding is performed. The feed rollers 23 a, 23 b, 23 c, and 23 d are fed to the first document exposure unit 24 on which a transparent member such as contact glass is disposed, and are disposed so that one surface faces the first document exposure unit 24. After the document passes through the first document exposure unit 24, the front and back are reversed by the document reversing means 25 comprising a switchback mechanism, and the surface opposite to the surface facing the first document exposure unit 24 is the second document exposure unit. 26 so as to face 26. Further, after the document passes through the second document exposure unit 26, the document is returned to the lowermost part of the document placed on the document placing table 21 by the document return means 27a and 27b. As described above, the circulation type automatic document feeder 20 can sequentially feed a document to the first document exposure unit 24 and the second document exposure unit 26, and the circulation type document automatic feeding device 20. Thus, the document fed to the first and second exposure units 24 and 26 is subjected to exposure scanning in the document traveling system by the optical device 40 described in detail later.

  On the other hand, the manual document placing device 30 includes a contact glass 31 and a document cover 32 provided on the contact glass 31 so as to be openable. When placing a document on the manual document placement device 30, the operator manually opens the document cover 32 and places the document at the document placement reference position on the contact glass 31. When the document cover 32 is closed in this state, the document is pressed against the contact glass 31 by the document cover 32. When this manual document placing device 30 is used, the document placed in a stationary state on the contact glass 31 is subjected to exposure scanning of the document stationary method by the optical device 40 described in detail later.

  The optical device 40 built in the upper part of the copying machine main body 10 includes a scanning unit 43 in which an exposure lamp 41 and a first mirror 42 are integrally provided, and a movement in which a second mirror 44 and a third mirror 45 are integrally provided. It comprises a mirror unit 46, a zoom lens 47, a fourth mirror 48a, a fifth mirror 48b, and a sixth mirror 49. The optical device 40 irradiates the document surface with the exposure lamp 41 while scanning the scanning unit 43 along the document surface, and reflects the reflected light reflected on the document surface at this time by the first mirror 42, the second mirror 44, Optical by reflected light that is guided to the surface of the photosensitive member 51 described below through the third mirror 45, the variable magnification lens 47, the fourth mirror 48a, the fifth mirror 48b, and the sixth mirror 49, and represents the image of the document. Form an image.

  When a plurality of originals are automatically fed by mechanical operation using the circulation type automatic document feeder 20, and the original surface of the original is exposed and scanned, the side facing the first original exposure unit 24 When the document surface is exposed and scanned, the scanning unit 43 stops at the stop position 43a for the first document exposure unit, and the document that travels and passes through the position facing the first document exposure unit 24 depends on the travel of the document. When the exposure scanning is performed and the document surface on the side facing the second document exposure unit 26 is exposed and scanned, the scanning unit 43 stops at the stop position 43b for the second document exposure unit, and the second document exposure unit. The document that travels and passes through the position facing the camera 26 is exposed and scanned depending on the travel of the document.

  On the other hand, when the manual document placement device 30 is used to place a single document on a contact glass by an operator and the document surface of the document is exposed and scanned, the scanning unit 43 is used. The document is exposed while moving from the standby position 43c corresponding to one end (left end in FIG. 2) of the contact glass 31 toward the other end (to the right in FIG. 2). At this time, the moving mirror unit 46 moves in the same direction at half the moving speed of the scanning unit 43.

  As shown in FIG. 3, the image forming apparatus 50 incorporated in the middle part of the copying machine main body 10 is arranged around the photoconductor 51 along the rotation direction A of the photoconductor 51 (clockwise direction in FIG. 3). The main components such as a charger 52, an exposure optical path 53, a developing means 54, a transfer device 55, a peeling discharge device 56, a cleaner 57, and a charge eliminating lamp 58 are sequentially provided. The charger 52 supplies electric charges to the surface of the rotating photoconductor 51 to uniformly charge the surface of the photoconductor 51. Next, when the surface of the photoconductor 51 uniformly charged by the charger 52 reaches the exposure opening area 51a facing the exposure optical path 53, the reflected light from the document obtained and guided by the optical device 40 is exposed. The photosensitive member 51 is irradiated through the optical path 53, whereby the uniform charge on the surface of the photosensitive member 51 changes to a charge corresponding to the original image, and an electrostatic latent image is formed on the surface of the photosensitive member 51.

  Next, when the surface of the photoreceptor 51 on which the electrostatic latent image is formed moves to a position facing the developing unit 54, a developer having a polarity opposite to that of the charge forming the electrostatic latent image by the developing unit 54 is obtained. The developer is supplied to the electrostatic latent image by electrostatic force, and the electrostatic latent image becomes a visualized developer image. Next, when the surface of the photoconductor 51 on which the developer image is formed reaches a position facing the transfer device 55, the charge having the same polarity as the charge on the surface of the photoconductor 51 is transferred from the transfer device 55 to the sheet feeding device 100. Is supplied to the sheet fed toward the photosensitive member 51, and the potential of the sheet in close contact with the photosensitive member 51 becomes higher than the surface potential of the photosensitive member 51, and the developer image on the surface of the photosensitive member 51 becomes the sheet. The developer image is transferred from the surface of the photoreceptor 51 onto the sheet.

  Next, the peeling discharge device 56 adjacent to the transfer device 55 supplies a charge having a polarity opposite to the supply charge of the transfer device 55, and the adhesion between the surface of the photoreceptor 51 and the sheet is lowered, and the sheet is The developer image is peeled off from the surface of the photoreceptor 51 in a state where the developer image is carried. Further, when the surface of the photoconductor 51 moves to reach a position facing the cleaner 57, the developer remaining on the surface of the photoconductor 51 without moving to the sheet during transfer is removed from the surface of the photoconductor 51. . Next, when the surface of the photoconductor 51 from which the residual developer has been removed moves to the position of the static elimination lamp 58, the static elimination light is emitted from the static elimination lamp 58, and the surface potential of the photoconductor 51 is set to a substantially uniform low potential. When charged by the charger 51, it is possible to prevent the surface potential of the photoconductor 51 from becoming too high or the uniformity of the surface potential from being lowered. Such a process is continuously performed, and the original image scanned by exposure is formed on the sheet as a developer image. The developer recovered by the cleaner 57 is sent to the developer recovery container 148 via a developer recovery transport path (not shown).

  A sheet feeding apparatus 100 that feeds a sheet to the transfer unit of the image forming apparatus 50 described above is partially exposed to the outside of the lower part of the copying machine main body 10, and is incorporated in the first sheet feeding apparatus 110, The second sheet feeding device 120, the third sheet feeding device 130, the duplex feeding device 140, and the manual feeding device 150 are configured, and only the manual feeding device 150 is exposed to the outside of the copying machine main body 10. Each of the sheet feeding apparatuses 110, 120, 130, 140, and 150 includes, as main means, each sheet placing means 111, 121, 131, 141, and 151, and a calling picture feeding means 112, 122, 132, 142, and 152. , And feeding units 114, 124, 134, 144, and 154 comprising separation feeding means 113, 123, 133, 143, and 153, respectively.

  Further, synchronous alignment means 160 provided immediately before the photoconductor 51 is provided in the conveyance path that guides the sheets fed one by one by the sheet feeding devices 110, 120, 130, 140, and 150 to the photoconductor 51. A conveying roller is appropriately disposed between each of the sheet feeding apparatuses 110, 120, 130, 140, and 150. The sheets fed from the sheet feeding devices 110, 120, 130, and 150 are sent to the synchronous alignment unit 160 by a conveyance roller disposed in the middle of the conveyance path. While being aligned so that the axis of the body 51 is parallel, the position of the developer image formed on the surface of the photoreceptor 51 is synchronized, and the sheet is fed toward the photoreceptor 51. The sheet carrying the developer image at the transfer portion is peeled off from the photoreceptor 51 by the peeling discharger 56 and sent to the fixing device 60 by the transport belt 85.

  The fixing device 60 includes a heat roller 61 formed by coating a surface of a metal pipe such as aluminum with a heat-resistant release resin, and a heat-resistant elastic layer made of silicon rubber or the like around a metal core. In order to keep the temperature of the formed pressure roller 62, the heater lamp 63, which is a heating source disposed in the heat roller 61 for supplying heat, and the heater lamp 63 at a predetermined temperature, it contacts the outer periphery of the heat roller 61. A temperature detector 64 such as a thermistor, a peeling claw 65 disposed in contact with the outer periphery of the heat roller 61 or the pressure roller 62 in order to peel the sheet from the heat roller 61 or the pressure roller 62, and a heat roller. It is constituted by main parts such as a pressurizing means (not shown) for press-contacting 61 and the pressure roller 62. When the sheet carrying the unfixed developer image formed by the image forming device 50 is conveyed by the conveying belt 85 to the fixing device 60 and passes between the heat roller 61 and the pressure roller 62, Pressure is applied to the sheet, and the unfixed developer image is fixed to the sheet. Thereafter, the sheet is peeled off from the reheat roller 61 or the pressure roller 62 by the peeling claw 65 and sent out from the fixing device 60. .

  After the sheet fed from the fixing device 60 passes through the conveyance roller 86, the conveyance path is switched by the switching gate 87 and is discharged to the outside of the copying machine main body 10 by the discharge roller 88, or It is sent to the switchback transport path 91 by the forward / reverse roller 90. The sheet carried into the switchback conveyance path 91 is carried out toward the duplex feeding device 140 by switching the conveyance path by the switching gate 92 and reverse rotation of the forward / reverse rotation roller 90. The sheets carried out from the switchback conveyance path 91 and passed through the feeding roller 93 are sequentially stacked and placed on the duplex feeding device 140. The sheets temporarily placed on the duplex feeding device 140 are separated and fed one by one by the feeding feeding means 142 and the separation feeding means 143. The sheet fed from the duplex feeding 140 is fed again toward the photoconductor 51 so that the surface of the sheet on which the image is not formed faces the photoconductor 51.

  When the single-sided mode is selected by an operation panel (not shown), the sheet fed from the sheet placing means 111, 121, 131, 151 is formed with a surface image on one side and fixed, and then from the copying machine main body 10. It is discharged outside. On the other hand, when the duplex mode is selected, the sheets fed from the sheet placing units 111, 121, 131, and 151 are fixed to the duplex feeding device 140 after an image is formed on one side and fixed. After being mounted and fed again toward the photoconductor 51 to form an image on the opposite surface where no surface image is formed, the exterior of the copying machine main body 10 is the same as in the single-sided mode. To be discharged.

  The sheet discharged to the outside of the copying machine main body 10 as described above is carried into the post-processing device 70. Referring again to FIG. 1, the post-processing device 70 is configured to include main elements such as a staple tray 74, a stapler 75, a pusher 76, a binding sheet discharge tray 77, and a stack tray 80. The sheet discharged from the copying machine main body 10 is sent to the entrance roller 71 and the transport path is switched by the switching gate 81 and sent to be stacked on the staple tray 74 via the transport roller 73, or The paper is fed so as to be stacked on the stack tray 80 via the transport roller 78 and the discharge roller 79. The sheets stacked on the staple tray 74 are bound by the stapler 75 for each predetermined portion and then discharged to the binding sheet discharge tray 77 by the pusher 76.

  The various devices arranged in the copying machine described above obtain driving force from a motor, solenoid, or the like, which is a driving source arranged in the copying machine, via the driving force transmission device. That is, for example, the power for moving the scanning unit 43 and the moving mirror unit 46, the power for rotating the photosensitive member 51, the power for rotating the rollers for conveying the document and the sheet, and the like are supplied from the motor and the solenoid. It is obtained via a driving force transmission member.

  In such a copying machine, a transmission device that transmits power from a motor or a solenoid to each device has a large number of driving force transmission components. This driving force transmission component is, for example, a gear, and when these gears are roughly classified, a transmission acting part that joins with other members to form a driving force transmitting action, that is, meshes with other gears to generate rotational force mutually. It is classified into a gear member having only one tooth portion for transmission and a composite gear body which is a composite drive transmission component in which a plurality of tooth portions are formed in the axial direction. As described above, in order to share a composite gear body at a plurality of arrangement positions, each tooth portion of the composite gear body must act together at each arrangement position. In view of the fact that it has been difficult to share with each other, a composite gear body is constructed by assembling components including a plurality of gear members, thereby reducing the types of molded products that have to be made with a mold or the like. Therefore, the connection structure of the driving force transmission member of the present invention is implemented.

  A first group of inventions related to the present invention will be described with reference to FIGS. FIG. 4 may be referred to as a composite drive transmission component (hereinafter referred to as an “assembly”) that is coupled according to a gear member coupling structure that is a driving force transmission member according to an embodiment of the first group related to the present invention. ) Is a cross-sectional view showing a gear train having 500; 5 (1) is a front view showing the gear member 103 constituting the assembly 500, and FIG. 5 (2) is a cross-sectional view of the gear member 103 as seen from the section line CC in FIG. 5 (1). FIG. 5 (3) is a rear view of the gear member 103. 6 (1) is a front view showing the gear member 104 constituting the assembly 500, and FIG. 6 (2) is a cross-sectional view of the gear member 104 as seen from the section line DD in FIG. 6 (1). FIG. 6 (3) is a rear view of the gear member 104. FIG. 7 (1) is a front view showing a gear member 101 constituting a gear train having an assembly 500, and FIG. 7 (2) is a gear member 101 as viewed from the section line AA in FIG. 7 (1). FIG. 7 (3) is a rear view of the gear member 101. FIG. 8 (1) is a front view showing the gear member 102 constituting the gear train having the assembly 500, and FIG. 8 (2) is the gear member 102 viewed from the cutting plane line BB in FIG. 8 (1). FIG. 8 (3) is a rear view of the gear member 102.

  In the present embodiment, as described above, four types of gear members 101 to 104 that transmit driving force by engaging the teeth of the outer peripheral portion with other members will be described as examples of the drive transmission member. The gear member 103 is formed with a concave connecting portion 103a that is recessed from the remaining portion toward the other axial side portion on one side in the axial direction. What is the one side in the axial direction provided with the concave connecting portion 103a? A convex connecting portion 103b is formed on the other side in the opposite axial direction so as to protrude from the remaining portion in a direction away from the one side in the axial direction. Similarly to the gear member 101, the gear member 101, the gear member 102, and the gear member 104 are also formed with concave connection portions 101 a, 102 a, 104 a on one side in the axial direction, and convex connection portions on the other side in the axial direction. 101b, 102b, and 104b are formed, respectively.

  Each of the concave connecting portions 101a to 104a is formed in the same shape and is disposed at the same position with respect to the axis of each of the gear members 101 to 104. Similarly, the convex connecting portions 101b to 104b are also formed in the same shape and arranged at the same position with respect to the axis of each gear member 101 to 104. Furthermore, the height dimension H1 of each convex connection part 101b-104b becomes smaller than the depth dimension H2 from the surface of one side part of each gear member 101-104 of each concave connection 101a-104a (H1 < H2) formed. Further, each of the convex connecting portions 101b to 104b is formed in a shape that can be stably fitted to each of the concave connecting portions 101a to 104a without greatly shaking, and that the fitting and detaching operations can be smoothly performed. It is easy to connect and disengage the gear members 101 to 104.

  These concave connecting portions 101a to 104a and convex connecting portions 101b to 104b are bearing holes 101c to 104c formed through the gear members 101 to 104 at the center of the gear members 101 to 104, respectively. And the tooth portions 101d to 104d, which are driving force transmission acting portions, at a fixed distance from each axis O of each gear member that is the center of the bearing holes 101c to 104c, and at two positions every 180 degrees in the circumferential direction. Is formed. Thus, by making each concave connection part 101a-104a and each convex connection part 101b-104b which each gear member 101-104 forms into a structure which has unity, it is the same kind of gear members or different types of gear members. Arbitrarily select gear members and place them on the same axis, and engage and lock the convex connecting parts with the concave connecting parts, allowing each gear member to transmit rotational force around the axis, and in the axial direction Can be detachably connected to each other.

  Specifically, as shown in FIG. 4, the gear members 103 and 104 can be connected by fitting the convex connecting portion 103 b to the concave connecting portion 104 a to constitute the assembly 500. Needless to say, although not shown, the other gear members 101 and 102 can be similarly connected. In particular, each of the gear members 101 to 104 is formed with the concave connection portions 101a to 104a and the convex connection portions 101b to 104b, and is disposed on mutually different side portions. Even if two are arbitrarily selected, the two gear members can always be connected. That is, since at least one of the selected gear members has a concave connection portion and a convex connection portion, the gear member connected to this can be connected if it has a concave connection portion or a convex connection portion. Yes, all the gear members 101 to 104 can be connected to each other.

  Thus, by preparing four types of gear members 101 to 104, there are ten types having two tooth portions 101d to 104d, that is, six types of combinations between different types and four types of combinations between the same types. A composite driving force transmission component can be assembled. That is, it is possible to assemble more complex driving force transmission parts than types of gear members. This effect can be achieved when two or more types of gear members are prepared. In addition, these gear members 101 to 104 can be used alone, and an assembly having three or more tooth portions can be assembled. If these are included, more driving force transmission parts are included. Can be configured.

  In the following description, the four types of gear members 101 to 104 will be mainly described as examples. However, for all the gear members intended to be shared for the entire copying machine and other devices, All the gear members can be connected by forming the same concave connection part and convex connection part. As the number of types of gear members to be prepared increases, the ratio of the types of prepared gear members to the total types of drive force transmission components that can be configured decreases, and the above-described effect of the present invention increases. In an image processing apparatus such as a copying machine using a force transmission component, the great effect of the present invention is exhibited.

  As shown in FIG. 4, a rotation shaft 201, a rotation shaft 202, and a rotation shaft 203, which are rotation support members, are integrally fixed to a frame 200 that supports a gear train that is a drive mechanism, Each rotating shaft 201-203 is provided in parallel with each other. The rotating shaft 201 is inserted through the gear member 101, the rotating shaft 202 is inserted through the gear member 102, and the rotating shaft 203 is inserted through the assembly 500 including the gear members 103 and 104. A solid 500 is rotatably supported.

  In the driving force transmission path, the gear member 101 is arranged on the side closer to the driving source, the gear member 102 is arranged on the side far from the driving source, and the gear member 101 is driven at an increased rotational speed. An assembly 500 is interposed to transmit the force. The assembly 500 is configured such that the two gear members 103 and 104 are connected as described above and rotate integrally. The gear member 103 meshes with the gear member 101, and the gear member 104 meshes with the gear member 102. In this state, the rotation of the gear member 101 is transmitted from the gear member 103 to the gear member 102 via the gear member 104.

  Each gear member 101-104 has each convex connection part 101b-104b arrange | positioned at the side which faces the frame 200, each rotating shaft 201-203 is each penetrated, and displacement, such as an E ring, is inserted in these rotating shaft 201-203. The blocking members 301, 302, and 303 are engaged with the respective rotary shafts 201 to 203 to prevent displacement with respect to the respective rotary shafts 201 to 203, thereby preventing them from falling off. More specifically, each of the displacement prevention members 301 to 303 mainly functions to keep the axial displacement of each of the gear members 101 to 104 within a predetermined amount, and also prevents the gear members 101 to 104 from coming off. it can.

  In this embodiment, the convex connection portion and the concave connection portion of each gear member are arranged with a phase shift of 90 degrees in the rotation direction of the gear member, that is, the circumferential direction. The phase in the rotation direction of the connecting portion may be the same, and the same effect can be achieved. In order to facilitate understanding, including the drawings described below, each of the gear members 101 to 104 has a convex connecting portion and a concave connecting portion arranged in the same phase unless otherwise specified. Assuming a cross section.

  Further, since the height dimension H1 of the convex coupling portion is smaller than the depth dimension H2 of the concave coupling portion, an example in which the gear member 103 and the gear member 104 are coupled to each other is shown in FIG. As shown, the side surfaces of the gear member 103 and the gear member 104 are in contact with each other so that no gap is generated between the gear members. Therefore, the stability of the assembly 500 is improved. That is, rattling between the gear members is suppressed. Further, in this way, when the gear members 101, 102 and the assembly 500 are supported by the rotating shaft 203, the height dimension H3 of the boss portions 201a, 202a, 203a of the rotating shaft is the height dimension H1 of the convex coupling portion. And the outer diameter D10 of the boss 203a is smaller than the inner diameter D11 of the radially inner ends of the convex connecting portions 101b to 104b, the axial direction on the side where the convex connecting portion of the gear member is located, etc. The gear member may be disposed so that the side portion faces the frame 200. This makes it possible to use the space effectively.

  Further, as another form of the first group related to the present invention, each driving force transmission component takes the assembly 500 as an example, and the outer diameter D10 of the boss portion 203a of the rotating shaft 203 is convex as shown in FIG. When it becomes larger than the inner diameter dimension D11 of the radially inner end of the connecting part 103b, the tip part of the protruding connecting part 103b may be placed in contact with the boss part 203a of the rotating shaft 203. In this case, space saving can be achieved by reducing the height H3 of the boss portion 203a.

  As still another form of the first group related to the present invention, when the assembly 501 is configured by fitting the convex connection portion 103b to the concave connection portion 104a, this assembly 501 is shown in FIG. As described above, the frame 200 may be disposed so that the concave connection portion 103a faces the frame 200. In the case where the concave coupling portions 101a to 104a are arranged to face the frame as in this example, when the convex coupling portions 101b to 104b are close to the rotating shafts 201 to 203, the screws 304 are used as displacement preventing members. It can be used to prevent displacement of each driving force transmission component and prevent dropping.

  When the E-rings 301 to 303 and the like are used as the displacement prevention members and when the screws 304 are used, the drive force transmission parts 101 and the like are separated by detaching the displacement prevention members 301 to 303 and 304 from the rotary shafts 201 to 203. 102, 500; 501 can be removed from the rotating shaft, each part can be replaced, and the operation is also easy. In particular, when an E-ring is used, the workability is excellent. Further, each assembly 500, 501 can be disassembled into each gear member 103, 104, and only one gear member 103, 104 can be replaced instead of the whole assembly 500, 501, which is economical.

  Next, an E-ring or the like that can be easily attached and detached as compared with a screw or the like can be used as a displacement prevention member for preventing the driving force transmission component from being displaced due to displacement with respect to the rotating shaft. Thus, a description will be given of a mode in which each drive force transmission component, that is, each of the gear members 101 to 104 and the assembly composed thereof, can be attached and detached, and the disassembly work can be speeded up and facilitated.

  First, an arrangement in which the convex coupling portions 101b to 104b of the gear members 101 to 104 are not so far away from the bearing holes 101d to 104d, that is, the inner diameter of the radial inner side surfaces of the convex coupling members 101b to 104b is the E-ring. A configuration in which a displacement prevention member such as an E-ring can be used as a displacement prevention member that restricts the gear members 101 to 104 from being detached from the rotating shaft even if the configuration is smaller than the outer diameter. FIG. 11 is a cross-sectional view showing an assembly 502 in which a driving force transmission member connecting structure according to another embodiment of the first group related to the present invention is implemented. FIG. It is a front view which shows the spacer member 105 to perform, FIG.12 (2) is sectional drawing seen from the cut surface line EE of FIG. 12 (1).

  The connection structure of this embodiment includes a spacer member 105, and when the convex connection portion 104b is positioned on the side where the displacement prevention member 303 that is an E-ring is disposed, the gear member in which the convex connection portion 104b is formed. A spacer member 105 is mounted on the other axial side portion of 104. The spacer member 105 is also formed with a fitting recess 105a having the same shape as the concave coupling portions 101a to 104a of the gear members 101 to 104, and the convex coupling portions 101b to 104b of the arbitrary gear members 101 to 104. Can be fitted. The thickness dimension H5 of the spacer member 105 is selected to be slightly larger than the height dimension H1 of the convex coupling portions 101b to 104b of the gear members 101 to 104, in this embodiment.

  The spacer member 105 is formed with a fitting recess 105a having a depth dimension H4 equal to or higher than the height dimension H1 of the convex coupling part 104b of the gear member 104, and a bearing hole 105c similar to each gear member 101 to 104. Is formed. The fitting concave portion 105a penetrates in the thickness direction and is formed at the same arrangement position as the convex connecting portion 104b.

  The spacer member 105 abuts on the other region of the gear member 104 in the remaining region excluding the convex coupling portion in a state where the convex coupling portion 104b of the gear member 104 is fitted into the fitting concave portion 105a. Installed. Thereby, the region S for mounting the displacement prevention member and its work can be secured in the same manner as when the axial direction one side of each of the gear members 101 to 104 faces the displacement prevention member. That is, even when the outermost diameter D12 of the displacement prevention member is larger than the inner diameter of each gear member, for example, the convex connecting portion 103b of the gear member 103, the member 303 made of the same type of E-ring is used as the displacement prevention member. Can be used.

  As another form of the first group related to the present invention, the fitting recess 105a of the spacer member 105 may not be a hole penetrating in the thickness direction as in this form, but may be a bottomed depression. The effect is achieved.

  FIG. 13 is a cross-sectional view showing an assembly 503 in which a driving force transmission member coupling structure according to another embodiment of the first group related to the present invention is implemented. FIG. 14 (1) shows the assembly 503. It is a front view which shows the spacer member 120 to perform, FIG.14 (2) is sectional drawing seen from the cut surface line FF of Fig.14 (1). The spacer member is brought into contact with the other side portion in the axial direction in the region excluding the convex coupling portions 101b to 104b of the gear members 101 to 104, and in this state, the convex coupling portions 101b to 104b are avoided and convex coupling is achieved. What is necessary is just a member which protrudes in an axial direction rather than the parts 101b-104b. For example, the spacer member 120 may be configured in a cylindrical shape in which a similar bearing hole 120c is formed. The spacer member 120 is disposed in a region between the rotating shaft 203 and the convex coupling portion 104b of the gear member 104. Such a spacer member 120 can also achieve the same effect as the spacer member 105 described above. In addition, the spacer member 120 has a simpler configuration and is easier to manufacture than the spacer member 105.

  Next, the convex connecting portions 101b to 104b of the gear members 101 to 104 are arranged far away from the bearing holes 101d to 104d, that is, the inner diameters of the radially inner side surfaces of the convex connecting members 101b to 104b are E-rings. A configuration in which a displacement blocking member such as an E-ring can be used as a displacement blocking member that restricts the gear members 101 to 104 from being detached from the rotating shaft by using a configuration larger than the outer diameter will be described. FIG. 15 is a sectional view showing an assembly 504 in which a connection structure of still another embodiment of the first group related to the present invention is implemented, and FIG. 16 is a plan view seen from the upper side of FIG. In the embodiment described above with reference to FIGS. 11 to 14, the axial length of the rotating shaft 203 becomes long. Therefore, when it is desired to avoid this in design, the connection structure of this embodiment is suitably implemented. In this embodiment, the same reference numerals are assigned to portions corresponding to the above-described embodiments, and only different configurations will be described.

  In this embodiment, each of the gear members 101 to 104 that are driving force transmission members has a position where the convex coupling portions 101b to 104b and the concave coupling portions 101a to 104a are formed at a position radially outside the bearing holes 101c to 104c. Are far away. As a result, a mounting area for the displacement prevention members 301 to 303 and a work area S necessary for mounting and removing work are secured. Accordingly, similarly to FIGS. 11 to 14, the displacement prevention members 301 to 303 such as the E-ring are used to speed up and facilitate the attachment and detachment of the driving force transmission component and the assembly and disassembly of the assembly. It is possible to unify the types of members. Moreover, the axial direction length of a rotating shaft can be shortened.

  Moreover, the form which makes thickness of the axial direction of an assembly small is demonstrated below as a structure which each convex-shaped connection part 101a-104d of each gear member 101-104 does not protrude in the axial direction of an assembly by another structure. . FIG. 17 is a sectional view showing an assembly 505 of still another embodiment of the first group related to the present invention. 18 (1) is a front view showing the gear member 103 constituting the assembly 505, and FIG. 18 (2) is a cross-sectional view of the gear member 103 as seen from the section line GG of FIG. 18 (1). 18 (3) is a cross-sectional view of the gear member 103 as viewed from the cutting plane line HH in FIG. 18 (1), and FIG. 18 (4) is a rear view of the gear member 103. 19 (1) is a front view showing the gear member 104 constituting the assembly 505, and FIG. 19 (2) is a cross-sectional view of the gear member 104 as seen from the section line II in FIG. 19 (1). FIG. 19 (3) is a cross-sectional view of the gear member 104 viewed from the section line JJ in FIG. 19 (1), and FIG. 19 (4) is a rear view of the gear member 104. FIG. 17 shows a cross section showing the connection between the convex connecting portion 103b of the gear member 103 and the concave connecting portion 104e on the convex connecting portion 104b side of the gear member 104, and the concave shape of the gear member 103 on the convex connecting portion 103b side. A cross section showing the connection between the connecting portion 103e and the convex connecting portion 104b of the gear member 104 is shown on the left and right sides of the rotating shaft 203 at the same time. Portions corresponding to the above-described embodiment are assigned the same reference numerals, and only different configurations will be described.

  In this embodiment, an example will be described in which the gear members 101 to 104 (the gear members 101 and 102 are not shown) and the convex connecting portions 101b to 104b are not located on the end face side of the assembly. In addition, concave connection portions 101e to 104e are formed on the other side in the axial direction where the convex connection portions 101b to 104b of the gear members 101 to 104 are formed. In this embodiment, the convex connection portions 101b to 104b, the concave connection portions 101a to 104a formed on one side in the axial direction, and the concave connection portions 101e to 104e formed on the other side in the axial direction are The phase is shifted by 60 degrees in the direction.

  According to the configuration of this embodiment, when two gear members 103 and 104 are connected, the other axial side portions provided with both the convex connection portions 103b and 104b and the concave connection portions 103e and 104e are opposed to each other. Thus, the gear members 103 and 104 are connected. Thereby, it can be set as the structure which neither convex connection part 103b, 104b protrudes from the axial direction both sides part of the assembly 505. FIG. As a result, even if the convex connecting portions 103b and 104b are not separated from the bearing holes 103c and 104c, the assembly and disassembly can be quickly performed using the displacement blocking members 301 to 303 such as the E-ring as described above. It is possible to measure the characteristics and types of displacement prevention members. Further, by unifying the displacement prevention member, the number of types of tools for attaching and detaching the displacement prevention member can be reduced.

  FIG. 20 (1) is a front view showing a gear member 103 of a connection structure of still another embodiment of the first group related to the present invention, and FIG. 20 (2) is a sectional line of FIG. 20 (1). 20 is a cross-sectional view of the gear member 103 as viewed from KK, and FIG. 20 (3) is a rear view of the gear member 103. FIG. In the present embodiment, the gear member 103 is taken as an example, the same reference numerals are assigned to the corresponding portions, and only the portions different from the above-described embodiments will be described, but the other gear members 101, 102, and 104 are similarly configured. Is done.

  In this embodiment, similarly to the embodiments shown in FIGS. 1 to 16, the concave coupling portions 101a to 104a and the convex coupling portions 101b to 104b of the gear members 101 to 104 have a phase of 90 degrees in the circumferential direction. The concave connection portions 101a to 104a are formed so as to penetrate in the axial direction. Thereby, each concave connection part 101a-104a penetrated in the thickness direction functions also as a concave connection part formed in the side part in which each convex connection part 101b-104b is formed. Even if it is such a structure, the same effect can be achieved. Furthermore, manufacture is easy compared with the structure which forms a concave connection part in an axial direction both sides separately.

  Next, the structure which sets the positional relationship of the axial direction of the gear member which comprises an assembly is demonstrated using FIGS. 21-26. FIG. 21 is a cross-sectional view showing an assembly 506 in which a driving force transmission member connecting structure according to still another embodiment of the first group related to the present invention is implemented, and FIG. It is a front view which shows the space | interval setting member 106 to comprise, FIG.22 (2) is sectional drawing seen from the cut surface line LL of Fig.22 (1).

  For example, the configuration in which the position of the tooth portion 104d of the gear member 104 relative to the tooth portion 103 of the gear member 103 moves in the axial direction as compared with the above-described form, that is, the gear member 103 and the gear member 104 are integrated. A configuration in which the teeth can be rotated and the tooth portions 103d and 104d are separated from each other is necessary in design. In such a case, an interval setting member 106 that can be fitted into the concave connecting portion 103a of the gear member 103 and whose thickness is determined in accordance with the distance to be separated is used.

  The interval setting member 106 is fitted into the concave coupling portion 104a of the gear member 104, so to speak, the concave coupling portion 104a is raised, and the convex coupling portion 103b of the gear member 103 is brought into contact with the interval setting member 106, so that each gear is engaged. The members 103 and 104 are arranged at intervals. At this time, the thickness H5 of the gap setting member 106 is selected to be smaller than the depth dimension H2 of the concave coupling portion 104a, and the convex coupling portion 103b of the gear member 103 is fitted to the concave coupling portion 104a of the gear member 104. The gear members 103 and 104 can rotate integrally.

  The shape of the cross section perpendicular to the thickness direction of the interval setting member 106 is made substantially the same as the shape of the cross section perpendicular to the axis of the concave connecting portion 104a and slightly larger, and the interval setting member 106 is fastened to the concave connecting portion 104a. It may be fitted in a fitted state so as not to drop off from the concave connecting portion 104a, and workability may be improved.

  FIG. 23 is a cross-sectional view showing an assembly 507 in which a connecting structure of driving force transmission members according to still another embodiment of the first group related to the present invention is implemented. FIG. 24 (1) shows the assembly 507. It is a front view which shows the space | interval setting member 130 to comprise, FIG.24 (2) is sectional drawing seen from the cut surface line MM of FIG. 24 (1). In the form described with reference to FIG. 21 and FIG. 22, the interval setting member 130 is small and difficult to handle at the time of work, and the number of work is required by the number of concave connecting portions. A form-setting interval setting member is implemented. A bearing hole 130c through which the rotary shaft 203 is inserted and an insertion hole 130a through which the convex coupling portion 103b of the gear member 103 is inserted are formed in the inquiry setting member 130. The inner diameter dimension of the bearing hole 130c is larger than the outer diameter of the rotating shaft 203, for example, slightly larger so that the gap setting member 130 is not displaced in the radial direction and hinders the transmission of the rotation of the gear members 103 and 104. It is.

  The interval setting member 130 is arranged such that the convex coupling portion 103 b is inserted through the insertion hole 130 a and is fitted into the concave coupling portion 104 a of the gear member 104. As a result, the mutual positions of the gear members 103 and 104 in the axial direction can be set, and the assembling work can be simplified.

  FIG. 25 is a cross-sectional view showing an assembly 508 in which a driving force transmission member coupling structure according to still another embodiment of the first group related to the present invention is implemented. FIG. 26 (1) shows the assembly 508. It is a front view which shows the space | interval setting member 131 to comprise, FIG.26 (2) is sectional drawing seen from the cut surface line NN of FIG.26 (1). In this embodiment, the same effects as those shown in FIGS. 23 and 24 can be achieved. The interval setting member 131 of this embodiment is an annular member in which a bearing hole 131c into which the rotating shaft 203 can be inserted is formed. The outer diameter dimension of the inquiry setting member 130 is selected to be smaller than the inner diameter at the radially inner end of the convex connecting portion 103 b of the gear member 103. The gap setting member 131 is interposed between the gear members 103 and 104. In this state, the convex connection portion 103b is fitted into the concave connection portion 104a. In this embodiment, in addition to the above-described effects, the configuration of the interval setting member 131 is simple, and the manufacture becomes easy.

  Although the embodiment shown in FIGS. 21 to 26 has been described with reference to an example in which the interval between the gear members 103 and 104 is set, the present invention can be similarly implemented even when other gear members 101 and 102 are used.

  The configurations shown in FIGS. 21 to 26 are not applicable when the distance setting amount between the gear members 101 to 104 exceeds the depth dimension H2 of the concave coupling portions 101a to 104a of the gear members 101 to 104. In addition, a configuration that can be set even in such a case will be described with reference to FIGS. FIG. 27 is a sectional view showing an assembly 509 of still another embodiment of the first group related to the present invention. 28 (1) is a front view showing the interval setting member 132 constituting the assembly 509, and FIG. 28 (2) is a cross-sectional view taken along the cutting plane line PP in FIG. 28 (1). 28 (3) is a rear view of the interval setting member 132. Parts corresponding to those in the above embodiment are given the same reference numerals, and only different parts will be described.

  The interval setting member 132 includes a concave connection portion 132a in which the convex connection portions 101b to 104b of the gear members 101 to 104 can be fitted on one side in the axial direction, and the gear members 101 to 104 on the other side in the axial direction. A convex coupling portion 132b that can be fitted into the concave coupling portions 101a to 104a is formed. Moreover, since the thickness H7 in the axial direction excluding the convex connecting portion 132b is a set distance between the gear members 101 to 104, the thickness H7 is appropriately selected. The convex connection part 132b of the intermediate corner setting member 132 is fitted to the concave connection part 104a of the gear member 104, the convex connection part 103b of the gear member 103 is fitted to the concave connection part 132a of the interval setting member 132, The interval setting member 132 is interposed between the gear members 103 and 104.

  As a result, the gear members 103 and 104 can be integrally connected so as to be rotatable, and an interval corresponding to the thickness H7 can be provided between the gear members 103 and 104. Since the thickness H7 is not limited in connecting the gear members 103 and 104 so that the gear members 103 and 104 can be integrally rotated, the gap setting member 132 is used when the gap between the gear members 103 and 104 is to be increased. It can implement suitably.

  FIG. 29 is a sectional view showing an assembly 510 of still another embodiment of the first group related to the present invention. 30 (1) is a front view showing the interval setting member 132 constituting the assembly 510, and FIG. 30 (2) is a cross-sectional view taken along the cutting plane line QQ in FIG. 31 (1). 30 (3) is a rear view of the interval setting member 133. Parts corresponding to those in the above embodiment are given the same reference numerals, and only different parts will be described. In the form shown in FIGS. 21 to 28, the convex connection portion protrudes in the axial direction of the assembly, whereas this problem can be prevented in this form.

  Concave connecting portions 133a and 133e into which the gear members 101 to 10b to 104b can be fitted are formed on both sides in the axial direction of the interval setting member 133 of this embodiment. The interval setting member 133 is appropriately selected because its thickness H8 is the interval setting amount. In a state where the convex connection portions 103b and 104b of the gear members 103 and 104 are fitted to the concave connection portions 133a and 133e of the interval setting member 133, the interval setting member 133 is interposed between the gear members 103 and 104. Intervened. As a result, since the convex connecting portions do not protrude from the both sides in the axial direction of the assembly 510, it is possible to speed up the assembling work and the disassembling work and unify the types of the displacement preventing members. Further, the axial length of the assembly 510 is shortened, and it is possible to prevent the rotating shaft from becoming unnecessarily long.

  Further, by forming the concave coupling portion 132a on one side in the axial direction and the concave coupling portion 132e on the other side in the axial direction by shifting the phase in the circumferential direction, the concave coupling portions 132a and 132e on both sides in the axial direction are formed. When the dimension obtained by adding the depth dimension is larger than the thickness dimension of the interval setting member 132, the concave connection portions 132a and 132e communicate with each other, and the gear members 103 and 104 are connected to the concave connection portions 132a and 132e. When the convex connection parts 103b and 104b are fitted, the convex connection parts 103b and 104b come into contact with each other, and this causes a set amount interval larger than the desired interval set amount. Can be prevented.

  In the embodiment described with reference to FIGS. 27 to 30, the interval between the gear members 103 and 104 is set by the thickness of the single interval setting member 132 or the interval setting member 133. It is necessary to prepare gap setting members having different thicknesses by the same number as the number of assemblies having different amounts. Refer to FIG. 31 to FIG. 38 for the modes in which this problem can be solved, fine settings can be made and multi-stage settings can be made, and the types of interval setting members can be reduced. Will be described below.

  FIG. 31 is a sectional view showing an assembly 511 of still another form of the first group related to the present invention, and FIG. 32 is a sectional view showing a plurality of interval setting members 133 having different thickness dimensions H8. In this embodiment, two systems of interval setting members for setting the mutual position interval between the gear members 103 and 104 are prepared. In the first system, an interval setting member 133 shown in FIG. 30 is prepared as a coarse interval setting member for setting the mutual position interval between the gear members 103 and 104 roughly. In the second system, each gear member 103, As a fine interval setting member for finely setting the mutual position interval between the 104, an interval setting member 106 shown in FIG. 22 is prepared.

  When the dimension obtained by adding the depth dimensions of the concave connecting portions 133a and 133e on both sides in the axial direction is larger than the thickness dimension of the interval setting member 133, the coarse interval setting member 133 is provided with the concave connecting portions 133a and 133e. , The phase is shifted in the circumferential direction, and each of the concave connecting portions 133a and 133e is formed with a bottom so as not to communicate with each other. The fine interval setting member 106 is formed as a flat plate having a thickness smaller than the depth of the concave connection portion of the coarse interval setting member 133, and each concave connection in the cross section perpendicular to the axis O of the coarse interval setting member 133. The parts 133a and 133e are formed to have a shape having a similar outer shape slightly smaller than the shape of the inner surface. As a result, the fine interval setting member 106 can be fitted to the concave connection portions 133a and 133e of the coarse interval setting member 133 by stacking one or a plurality thereof and contacting the bottom portion. In particular, the smaller the thickness of the fine interval setting member 106, the larger the set amount can be made, and it is preferable that a plurality of concave connecting portions 133a and 133e can be stacked and fitted.

  The coarse interval setting member 133 and the fine interval setting member 106 are selectively used in combination, and a gear member is connected to the concave connecting portion 133a on one side in the axial direction of the coarse interval setting member 133 as in the example shown in FIG. The convex connection portion 103b of the gear member 104 is fitted into the concave connection portion 133e of the gear member 104 in this state. Are fitted. As a result, the gap between the gear members 103 and 104 can be increased by combining the thickness dimension of the coarse spacing setting member 133 and twice the thickness dimension of the fine spacing setting member 106.

  In the same manner as in this example, by combining the two interval setting members of the coarse interval setting member 133 and the fine interval setting member 106, the thickness of the fine interval setting member 106 is more than the number of systems, that is, three or more stages. The space | interval between each gear member 103,104 can be set for every thickness. For example, as in the example of FIG. 31, the fine interval setting member 106 is fitted to the concave connecting portion 133e on the other side in the axial direction, and the concave shape on one side in the axial direction of the coarse interval setting member 133 is added. One fine interval setting member 106 may be fitted to the connecting portion 133a. The fine interval setting member 106 can be fitted to each of the concave connecting portions 133a and 133e of the coarse interval setting member 133 by selecting an appropriate number.

  Further, the concave connection portions 133a and 133e of the coarse interval setting member 133 are fitted with a lower limit engagement depth that allows engagement with the convex connection portions 103b and 104b of the gear members 103 and 104. Is done. That is, the shape of the convex connecting portions 103b and 104b of the gear members 103 and 104 and the concave connecting portions 133a and 133e of the coarse interval setting member 133 receives the transmitted driving force, or each gear member 103, 104 with a lower limit engagement depth that can be reliably prevented from being released by rattling between the boss portion 203a of the rotating shaft 203 and the slip-off preventing portion forest 303. The interval setting members 106 are stacked and fitted. Here, the lower limit engagement depth is the minimum depth necessary for engaging the convex connection portions 103b and 104b of the gear members 103 and 104 with the concave connection portions 133a and 133e of the coarse interval setting member 133. This is a value set in consideration of the minimum necessary force with respect to the axial clearance and the transmitted driving force. Based on this, the thickness of the fine interval setting member 106 is selected to be a value obtained by subtracting the lower limit engagement depth from the depth dimension of each concave coupling portion 133a, 133e and dividing this by an integer, thereby driving It is possible to set the interval setting amount with a large number of stages by effectively using the depth dimension of each of the concave coupling portions 133a and 133e after reliably achieving the original purpose of transmitting force.

  Further, as shown in FIG. 32, by preparing a plurality of interval setting members 133A, 133B, and 133C having different thickness dimensions as the coarse interval setting member 133, the interval setting amount can be further increased. In this case, each of the coarse interval setting members 133A, 133B, and 133C is selected to have a different size every two times the value obtained by subtracting the lower limit engagement depth H9 from the depth size H2 of each recess connecting portion 133a and 133e. That's fine. As a result, the interval setting amount can be set in multiple steps for each thickness dimension H20 of the fixed interval setting member 106.

  Thereby, although it is a little small with respect to each gear member 101-104, the kind of coarse space | interval setting member 133 which still requires an expensive metal mold | die is reduced, and the space | interval of each gear member 101-104 is set. Therefore, it is possible to prevent the unnecessary mold cost from being generated by molding the interval setting member corresponding to different set amounts. In addition to this, it is possible to prevent the setting between the gear members 101 to 104, which is a problem in that case, from being coarsened and the meshing widths of the tooth portions 101d to 104d of the gear members 101 to 104 from being reduced. Further, the fine interval setting member is small and thin, and has the same size and shape, so even if it is molded by a mold, an inexpensive small mold is sufficient. Furthermore, if the fine interval setting member is made of a sheet material, a more inexpensive mold such as a Thomson tooth mold can be used.

  Further, as shown in FIG. 32, when preparing a plurality of coarse interval setting members 133A to 133C having different thickness dimensions H8, the interval setting member 133 (133A) similar to the configuration shown in FIG. 28, a gap setting member 131 having the same configuration as the gap setting member shown in FIG. 28 is prepared, and these are combined as shown in FIG. 33 and FIG. 34, so that functions similar to those of the coarse gap setting members 133B and 133C are obtained. You may make it comprise the space | interval setting body 550,551 which has. In this case, there are only two types of interval setting members constituting the coarse interval setting member, and the mold cost can be further reduced. Further, the thickness dimension H7 of the interval setting member 131 excluding the convex coupling part 131b is set to a thickness twice the value obtained by subtracting the lower limit engagement depth H9 from the depth dimension H2 of the concave coupling parts 133a and 133e. Thus, an interval setting body as a coarse interval setting member that differs for each value can be configured.

  As still another embodiment, the fine interval setting member uses an interval setting member 130 similar to the configuration shown in FIG. As shown in FIGS. 35 and 36, the assemblies 512 and 513 may be configured. In this case, the same effects as those described with reference to FIGS. 31 to 34 can be achieved.

  As still another form, the fine interval setting member uses an interval setting member 131 similar to the configuration shown in FIG. 26, and is used in combination with the fine interval setting member 131, the coarse interval setting member 133 and the interval setting body described above. 37 and 38, the assemblies 514 and 515 may be configured. In this case, an effect similar to that described with reference to FIGS. 31 to 34 can be achieved.

  FIG. 39 is an exploded cross-sectional view of an assembly 516 of still another embodiment of the first group related to the present invention. In FIGS. Different outer diameters. With reference to FIG. 39, a description will be given of a mode in which the same gear members 101 to 104 can be used even when the outer diameters d1, d2, and dn are different among the plurality of rotating shafts 203A, 203B, and 203C. In a device such as a copying machine, the transmitted driving force is within a predetermined range except in special cases. Based on this, as shown in FIG. 39, the outer diameter dimensions of the rotating shafts 201 to 203 for supporting the gear members 101 to 104 to be used in common are predetermined as shown in FIG. The shaft diameters dl to dn are set from the above range. Bearing 140A, which is a shaft diameter setting member having inner diameter dimensions D1, D2, and Dn and having a constant outer diameter D20 so that rotary shafts 203A to 203C having predetermined shaft diameters d1 to dn can be rotatably inserted. 14B and 14C, and the bearings 140A to 140C are fitted into the fitting holes 101c to 104c of the gear members 101 to 104 (only the gear members 101 and 104 are shown in FIG. 31) with an interference fit. In this manner, the same inner diameter D0 of the fitting holes 101c to 104c is selected.

  Further, if the thickness of each of the bearings 140A to 140C is too thin, the interference fit does not work properly, so that the thickness of each of the bearings 140A to 140C exceeds the predetermined thickness. The diameter D20 is determined. As for each gear member 101-104, the concave connection part 101a-104a and the convex connection part 101b-104b are formed between each tooth part 101d-104d and fitting hole 101c-104c.

  By using such bearings 140A to 140C, the shaft members 141A, 141B, and 141C of the bearings 140A to 140C are inserted into the rotation shafts 203A to 203C, so that the gear members 101 and 104 can be freely rotated. Further, the same gear members 101 to 104 can be supported by the rotating shafts 203A to 203C having different diameters. Therefore, the gear member 101 having the same tooth portion, for example, the tooth portion 101c, is molded for each of the rotation shafts 203A to 203C having different outer diameters corresponding to the outer diameters d1 to dn. There is no need, and the types of gear members 101 to 104 to be molded can be reduced regardless of the type of rotating shaft due to the difference in diameter. In this case, since the bearings 140A to 140C themselves are simple in shape and small in size, even if the bearings 140A to 140C are formed by resin molding, the cost is lower than the gear member mold, and the entire There are fewer types of molds and the manufacturing cost is reduced.

  Here, in the above configuration, the concave connection portion and the convex connection portion may be formed in a region having a radius between the axis of the driving force transmission member having the minimum effective diameter and the outer peripheral portion. Thus, it is possible to connect all the driving force transmission members regardless of the effective diameter of the driving force transmission member. In addition, the shape and size of the concave coupling portion and the convex coupling portion may be determined based on the force applied to the convex coupling portion when transmitting the driving force. It is possible to give a sufficient strength to the convex connection portion without forming the shape connection portion. Furthermore, the concave connection part and the convex connection part may be formed in a shape extending in the circumferential direction. As a result, the area of the cross section perpendicular to the axial direction of the convex coupling portion can be reduced, and the strength against the force applied when transmitting the driving force can be increased. In addition, the shape and size of such a concave connecting portion and the convex connecting portion are assumed to be the maximum torque generated when connecting the driving force transmission member with the maximum effective diameter and the driving force transmission member with the minimum effective diameter. The shape and size may be determined so that this maximum torque can be transmitted. As a result, even if the driving force transmitting members are connected in any combination, the convex connecting portion can have a sufficient strength.

  Although various forms have been described above, the first group of inventions related to the present invention is not limited to these forms. For example, the following forms are also the present invention.

  (1) In the above-described embodiment, the rotating shaft that is the driving force transmitting member may be integrally molded with a resin driving frame, or a metal rotation supporting member may be caulked to a sheet metal driving frame. It may be fixed integrally.

  (2) In the above embodiment, the driving force transmission member has been described as a gear member, but the present invention can also be applied to other driving transmission members such as a pulley of a timing belt and a friction wheel.

  (3) In the above-described embodiment, the two gear members arranged adjacent to each other on the same axis are connected to each other. However, the combination of the driving force transmission members is a drive having the same drive transmission action portion. The force transmission members are not limited to gear members and gear members, for example, as described above, but driving force transmission members having different drive transmission action portions, for example, gear members and pulley members may be combined. Further, three or more driving force transmission members may be connected.

  (4) The cross-sectional shape of the convex coupling portion in the direction perpendicular to the axis and the cross-sectional shape of the concave coupling portion in the direction perpendicular to the axis need not be substantially the same. For example, as shown in the front view of FIG. 40 (1), the cross-sectional view from the cutting plane line RR in FIG. 40 (1) of FIG. 40 (2), and the rear view of FIG. 40 (3). A recess between the reinforcing ribs 160f provided between the fitting hole 160c and the tooth part 160d may be used as the concave connection part 160a. As in this case, as long as the contact surface 160h of the concave connection 160a is planar, the support surface j of the concave engagement portion 160a with which the convex engagement portion 160b with a curved outer shape contacts may be curved. . If the concave engaging portion 160a is thus large, the gear member 160 shown in FIG. 40, the front view of FIG. 41 (1), and the cut line T in FIG. 41 (1) of FIG. As shown in the cross-sectional view from −T and the rear view of FIG. 41 (3), the convex connection portions 160b can be connected to each other even with different gear members 160.

  (5) In the above-described embodiment, the convex connecting portion and the concave connecting portion are configured to be connected at two locations. However, the convex connecting portion and the concave connecting portion are connected at three or more locations, or 1 You may make it connect in a location.

  (6) In the above-described embodiment, the circumferential phase shift between the convex coupling portion and the concave coupling portion is 90 degrees, but may be arranged in any phase.

(7) The concave connecting portion may be a hole penetrating the driving force transmission member.
(8) The height dimension of the convex coupling part may be larger than the depth dimension of the concave coupling part.

  (9) In the above-mentioned form, in the driving force transmission member intended to be used in common, all kinds of driving force transmission members have a convex coupling portion and a concave coupling portion, but the convex coupling It is an effect of the present invention even if the driving force transmission member group having only one of the convex coupling portion or the concave coupling portion is coupled to the driving force transmission member group having the concave portion and the concave coupling portion. Even if the number of types of driving force transmitting members is reduced, the effect that the number of combinations that can be connected side by side can be increased is achieved. It is not necessarily intended to be used in common as described above from the beginning, and even if it is intended to be used in common from the middle, it can be easily handled.

  In addition, only with respect to the driving force transmission member that is frequently used in the device, a concave connection portion may be formed on one side in the axial direction and a convex connection portion may be formed on the other side in the axial direction. That is, if there is a driving force transmission member having both a predetermined type of convex connection part and a concave connection part with respect to the driving force transmission member having either one of the convex connection part or the concave connection part, one A driving force transmitting member arbitrarily selected from a group of driving force transmitting members having a driving force transmitting action portion can be transmitted between the driving force transmitting members adjacent to each other on the same axis, and the driving force can be transmitted. It may be possible to use the transmission member alone.

  (10) In the above embodiment, the number of teeth, the module, the tooth width, and the material, which are design parameters for determining the tooth portion of the gear member as the driving force transmission member, are not particularly specified, but the gear member having these different design parameters. May be connected side by side on the same axis.

  (11) In the above embodiment, the driving force member is fixed to the rotation support member so as to be rotatable. It can be applied to a rotating configuration.

  As described above, various embodiments of the present invention have been described. However, by implementing the above-described embodiments alone or in combination, it is possible to further reduce the types of driving force transmission members that are costly to mold, and The driving force can be transmitted between the driving force transmitting members adjacent to each other on the axis, and the driving force transmitting member can be used alone.

  Further, in the above-described embodiment, the convex coupling portion and the concave coupling portion are formed in one annular band that is radially outward from the center of the bearing hole by a predetermined distance. The portion may be formed in a plurality of annular bands that are spaced radially outward from the center of the bearing hole by a predetermined distance. In the form in which this configuration is applied, a small-diameter driving force transmission member group in which the interval between the bearing hole and the driving force transmission action portion is narrow, and a medium-diameter driving force transmission member group in which the interval between the bearing hole and the driving force transmission action portion is medium. And a large-diameter driving force transmission member group in which the interval between the bearing hole and the driving force transmission operation portion is wide. In the small-diameter driving force transmission member group, one set of convex connection portions and concave connection portions is arranged in one annular band. The medium-diameter driving force transmission member group includes a concave coupling portion into which the convex coupling portion of the small-diameter driving force transmission material group can be inserted and coupled, and a convex coupling portion and a concave coupling portion that are connected to the annular band on the outer side. Arrange a pair. The large-diameter driving force transmission member group includes a concave coupling portion into which the convex coupling portion of the medium-diameter driving force transmission member group can be inserted and coupled, and a convex coupling portion and a concave coupling portion on the annular ring outside thereof. One set is arranged. As a result, the drive force transmission member groups can be connected to each other, and the drive force transmission members can be easily distinguished. For example, it is easy to distinguish gear member groups having different tooth modules.

  Further, each driving force transmission member may be configured to be fixed to a rotation support member that is rotatably provided. With the magnitude of the driving force, the tooth surface collapse strength and the tooth surface scraping strength depend on the tooth surface pressure. Moreover, the structure which provides the part which sets the space | interval of each driving force transmission member in the rotation support member integrally may be sufficient.

Next, a second group of inventions related to the present invention will be described with reference to FIGS. FIG. 42 is a cross-sectional view showing a gear train having an assembly 900 that is coupled according to the coupling structure of driving force transmission members according to an embodiment of the second group of the present invention. In this embodiment, a gear member that transmits a driving force by engaging a tooth portion of the outer peripheral portion with another member will be described as an example of the driving force transmitting member. 43 (1) is a front view showing the gear member 603 constituting the assembly 900, and FIG. 43 (2) is a cross-sectional view of the gear member 603 as seen from the section line CC-CC in FIG. 43 (1). FIG. 43 (3) is a rear view of the gear member 603. 44 (1) is a front view showing the gear member 604 constituting the assembly 900, and FIG. 44 (2) is a cross-sectional view of the gear member 604 as seen from the section line DD-DD in FIG. 44 (1). FIG. 44 (3) is a rear view of the gear member 604. 45 (1) is a front view showing a gear member 601 constituting a gear train having the assembly 900, and FIG. 45 (2) is a gear member 601 as viewed from the cutting plane line AA-AA in FIG. 45 (1). FIG. 45 (3) is a rear view of the gear member 601. 46 (1) is a front view showing a gear member 602 constituting the gear train having the assembly 900, and FIG. 46 (2) is a view of the gear member 602 viewed from the cutting plane line BB-BB in FIG. 46 (1). FIG. 46 (3) is a rear view of the gear member 602. FIG. 47 (1) is a front view showing the connecting member 650 that configures the assembly 900 and connects the gear members 603 and 604, and FIG. 47 (2) is a sectional line EE-EE of FIG. 47 (1). 47 is a cross-sectional view of the connecting member 650 as viewed from above, and FIG. 47 (3) is a rear view of the connecting member 650.

  In the present embodiment, as described above, four types of gear members 601 to 604 that transmit driving force by engaging the teeth on the outer peripheral portion with other members will be described as examples of the drive transmission member. The gear member 603 is formed with a concave coupling portion 603a that is recessed from the remaining portion along the axial direction on both sides in the axial direction. Similarly to the gear member 601, the gear member 601, the gear member 602, and the gear member 604 are respectively formed with concave connection portions 601a, 602a, and 604a on both sides in the axial direction. The concave connection portions 601a to 604a are formed in the same shape and are disposed at the same position with respect to the axis of the gear members 601 to 604.

  The connecting member 650 is formed with convex connecting portions 650b that protrude from the remaining portions along the axial direction on both sides in the axial direction. The convex connection portion 650b is similar to the concave connection portions 601a to 604a of the driving force transmission members 601 to 604, and is the same as the positions of the concave connection portions 601a to 604a with respect to the axis of the gear members 601 to 604. It is arranged at the position. Further, the height dimension H21 of the convex coupling portion 650b is smaller than the depth dimension H22 from the surface of each side portion of each gear member 601-604 of each concave coupling portion 601a-604a (H21 <H22). Is formed. In addition, each of the concave coupling portions 601a to 604a and the convex coupling portion 650b is stably fitted into the concave coupling portions 601a to 604a without greatly shaking, and the fitting and detaching operations thereof. It is formed in a shape that can be smoothly performed.

  The concave connection portions 601a to 604a and the convex connection portion 650b are driven by the bearing holes 601c to 604c formed through the gear members 601 to 604 in the center of the gear members 601 to 604 and the driving force. More specifically, between the tooth portions 601d to 604d which are transmission acting portions, in the gear member 601 having the minimum effective diameter, positions where the shaft line and the tooth portion 601d of the outer peripheral portion are formed, that is, the bearing hole 601c and the tooth portion 601d, The gear members 601 to 604 and the connecting member 650 are formed at two positions at a constant distance from the axis O of the gear member 601 to 604 and every 180 degrees in the circumferential direction. In this way, the concave connection portions 601a to 604a of the gear members 601 to 604 and the convex connection portion 650b of the connection member 650 are formed in a uniform position and shape, so that the same type of gear members or Arbitrarily select different types of gear members and place them on the same axis, and engage and lock the convex connecting parts with the concave connecting parts, and rotate each gear member around the axis to transmit the driving force. It can be connected via the connecting member 650 so as to be detachable from each other in the axial direction.

  More specifically, as shown in FIG. 42, the gear members 603 and 604 are coupled by fitting the convex coupling portions 650b of the coupling member 650 to the concave coupling portions 603a and 604a, respectively. A solid 900 can be constructed. In this state, an interval corresponding to the thickness of the connecting member 650 is set between the gear members 603 and 604. Needless to say, although not shown, the other gear members 601 and 602 can be similarly connected via the connecting member 650. That is, all the gear members 601 to 604 can be connected to each other via the connecting member 650.

  Thus, by preparing four types of gear members 601 to 604, 10 types of composite driving force transmission parts having two tooth portions 601d to 604d can be assembled as in the case of the first group described above. . That is, it is possible to assemble a greater number of composite driving force transmission parts than the types of gear members. This effect can be achieved when two or more types of gear members are prepared. In addition, these gear members 601 to 604 can be used alone, and an assembly having three or more tooth portions can be assembled. If these are included, more driving force transmission parts are included. Can be configured.

  In the following description, only the four types of gear members 601 to 604 will be described as an example. However, all the gear members intended to be shared for the entire copying machine and other devices are connected. It can connect by the same concave connection part and convex connection part via a member. As the number of types of gear members to be prepared increases, the ratio of the types of prepared gear members to the total types of drive force transmission components that can be configured decreases, and the above-described effect of the present invention increases. In an image processing apparatus such as a copying machine using a force transmission component, the great effect of the present invention is exhibited.

  As shown in FIG. 42, a rotation shaft 701, a rotation shaft 702, and a rotation shaft 703, which are rotation support members, are integrally fixed to a frame 700 that supports a gear train that is a driving force transmission mechanism. The rotating shafts 701 to 703 are provided in parallel to each other. The rotating shaft 701 is inserted through the gear member 601, the rotating shaft 702 is inserted through the gear member 602, and the rotating shaft 703 is inserted through the assembly 900 including the gear members 603 and 604 and the connecting member 650. , 602 and the assembly 900 are rotatably supported so as to be rotatable with respect to the respective rotating shafts 701 to 703.

  In the driving force transmission path, the gear member 601 is disposed on the side close to the driving source, the gear member 602 is disposed on the side far from the driving source, and the gear member 601 is driven from the gear member 601 to the gear member 602 with an increased rotational speed. An assembly 900 is interposed to transmit the force. The assembly 900 is configured such that the two gear members 603 and 604 are connected as described above and rotate integrally. The gear member 603 meshes with the gear member 601, and the gear member 604 meshes with the gear member 602. In this state, the rotation of the gear member 601 is transmitted from the gear member 603 to the gear member 602 via the gear member 604.

  Each of the gear members 601 to 604 is inserted into the respective rotation shafts 701 to 703, and a displacement prevention member member 660 such as an E ring is engaged with each of the rotation shafts 701 to 703. Displacement with respect to the shafts 701 to 703 is prevented, and the shafts 701 to 703 are prevented from coming off and falling off. More specifically, each displacement prevention member 660 mainly serves to keep the axial displacement of each gear member 601 to 604 within a predetermined amount, and also prevents the gear members 601 to 604 from coming off. Yes.

  Further, since the height dimension H21 of the convex coupling portion 650b is smaller than the depth dimension H22 of the concave coupling portions 601a to 604a, the gear member 603 and the gear member 604 are coupled to each other in FIG. As shown in the example, the gear members 603 and 604 and the connecting member 650 are in contact with each other so that no gap is generated. Therefore, the stability of the assembly 900 is improved. That is, rattling between the gear members is suppressed.

  In this embodiment, each of the gear members 601 to 604 is formed with a concave coupling portion on both sides in the axial direction, so that three or more gear members 601 to 604 can be coupled in the axial direction as described above. In addition, when the two gear members 601 to 604 are connected, they can be connected by the connecting member 650 regardless of the front and back of each gear member 601 to 604, so that the workability is excellent. Further, by forming the convex connection portion 650b on the connection member 650 and forming the concave connection portions 601a to 604a on the gear members 601 to 604, the axial dimension of each gear member 601 to 604 is reduced. In addition, when the gear members 601 to 604 are connected to each other and used independently, the convex connection portion is not released. As a result, the dimension of the assembly 900 in the axial direction can be reduced, and an area for mounting the displacement prevention member 660 or an area SS for attaching / detaching the displacement prevention member is secured. Therefore, it is not necessary to use a special member as the displacement prevention member 660, and it is possible to use a commercially available E-ring or C-ring, which is easy to obtain and easy to attach and detach the displacement prevention member 660. . Also, by disengaging the displacement prevention member 660 from the rotation shafts 701 to 703, it is possible to remove each driving force transmission component 601, 602, 900 from the rotation shaft, and it is possible to replace each component, and that work Easy. In particular, when an E-ring is used, the workability is excellent. Each assembly 900 can be disassembled into gear members 603 and 604, and not the entire assembly 900 but only one gear member 603 or 604 can be replaced, which is economical.

  As another form, even if a concave connection part is the structure formed only in the axial direction one side part, if it is two gear members, it can connect via the connection member 650. FIG. Furthermore, even if it is the structure which forms a convex connection part in each gear member 601-604 and forms a concave connection part in a connection member, each gear member 601-604 can be connected by the connection member 650. FIG.

  Next, as another form of implementation of the second group of the present invention, when at least one of the driving force transmission members to be coupled is a pulley member 606, a form in which a part of the coupling member is used as a hook is shown in FIG. A description will be given with reference to FIG. FIG. 48 is a cross-sectional view showing an assembly 901 in which a driving force transmission member connecting structure according to another embodiment of the second group of the present invention is implemented. Parts corresponding to those shown in FIGS. 42 to 47 are denoted by the same reference numerals, and only different configurations will be described.

  In this embodiment, the driving force transmission members are pulley members 610 and 611, and similar concave coupling portions 610a and 611a are formed on both sides in the axial direction, similarly to the gear members 601 to 604 described above. Each of the pulley members 610 and 611 has bearing holes 610c to 611c penetrating in the axial direction in the center portion, and the rotation shaft 704 is inserted and supported rotatably. Belts 613 and 614 are stretched around the outer periphery of the pulley members 610 and 611, respectively.

  Thus, when the driving force transmitting member is a pulley member, in this embodiment, a part of the connecting member 650, the outer diameter of the connecting member 650 is made larger than the effective diameter, that is, the outer diameter of the pulley member 610 having a large outer diameter, The outer peripheral portion is configured to protrude outward in the radial direction from the pulley members 610 and 611. As a result, the connecting member 650 functions as a flange for preventing the belts 613 and 614 stretched around the pulley members from shifting in the axial direction. As a result, the belt 614 stretched around the small-diameter pulley member 611 and the belt 613 stretched around the large-diameter pulley member 610 are prevented from being displaced in the axial direction, that is, in the direction close to the connecting member 650, The belts 613 and 614 can be made difficult to come off.

  In particular, the belts 613 and 614 can be prevented from coming off by forming a flange on the side of the pulley members 610 and 611 opposite to the connecting member 650. As described above, the flange portion only needs to be formed on one side portion in the axial direction, which is easy to manufacture and can reduce the thickness of the pulley members 610 and 611 in the axial direction.

  Next, a configuration for setting the positional relationship in the axial direction of the gear members constituting the assembly will be described with reference to FIGS. 49 to 65. FIG. 49 is a cross-sectional view showing an assembly 902 in which a connecting structure of driving force transmission members according to still another embodiment of the second group of the present invention is implemented, and FIG. 50 (1) constitutes the assembly 902. It is a front view which shows the space | interval setting member 750, FIG.50 (2) is sectional drawing seen from the cut surface line FF-FF of FIG. 50 (1). Portions corresponding to the above-described embodiment are assigned the same reference numerals, and only different configurations will be described.

  The gear members 603 and 604 are coupled between the gear members 603 and 604 in a state in which an interval corresponding to the thickness of the coupling member 650 is set. Such a configuration that can be arbitrarily set in the direction of further increasing the distance between the gear members 603 and 604 is required in design. In such a case, an interval setting member as shown in FIG. 50 that can be fitted into the concave coupling portion 603a of the gear member 603 is used.

  The interval adjusting member 750 is inserted into one or a plurality of the concave connecting portions 603a and 604a of the gear members 603 and 604, so that the concave connecting portions 603a and 604a are raised so that the convex connecting portion 650b of the connecting member 650 is spaced. The gear members 603 and 604 and the connecting member 650 are arranged with a space therebetween in contact with the setting member 750. At this time, the thickness H25 of the interval setting member 750 is smaller than the depth dimension H22 of the concave connecting portions 603a and 604a, and is particularly preferably smaller. A plurality of sheets are stacked and fitted, and the interval is set in multiple stages. Is possible.

  In this embodiment, a value obtained by subtracting the lower limit engagement depth from the depth dimension of each of the concave coupling portions 603a and 604e and dividing this by an integer is selected. Here, the lower limit engagement depth is the minimum depth necessary for engaging the concave coupling portions 603a and 604a of the gear members 603 and 604 with the convex coupling portion 650b of the coupling member 650, and the axis line This value is set in consideration of the minimum necessary force for the direction clearance and the transmitted driving force. As a result, the original purpose of transmitting the driving force can be reliably achieved, and the depth dimension of each of the concave coupling portions 603a and 604a can be effectively used to set the interval setting amount in many stages. It becomes possible. At this time, the convex connection portion 650b of the connection member 650 is fitted and connected to the concave connection portion 604a of each gear member 604, and each gear member 603, 604 can rotate integrally. In such a configuration, each of the concave coupling portions 603a and 604a is formed to have a bottom, and can be raised by the interval setting member 750.

  In addition, the shape of the cross section perpendicular to the thickness direction of the interval adjusting member 750 is made substantially the same as the shape of the cross section perpendicular to the axis of the concave connecting portions 603a and 604a and slightly larger to make the interval adjusting member 750 the concave connecting portion. It is possible to improve workability by fitting in 603a and 604a in a state of interference fit so as not to drop out from the concave coupling portions 603a and 604a.

  Furthermore, not only such an interval adjusting member 750 but also a plurality of connecting members 650A, 650B, 650C having different thicknesses as shown in FIG. By selectively combining the connecting members 650A to 650C, it is possible to set the intervals between the gears in a multistage manner, and the setting of the intervals becomes easy. In this case, each of the coarse interval setting members 132A, 132B, and 133C is twice the value obtained by subtracting the lower limit engagement depth H29 from the depth dimension H22 of the recess coupling portion 603a shown as a representative in FIG. You can select different dimensions one by one. As a result, the interval setting amount can be set in multiple steps for each thickness dimension H30 of the fixed interval setting member 606.

  As a result, it is possible to set the interval between the gear members 601 to 604 by reducing the types of the connection members 650 that are slightly smaller than the gear members 601 to 604 but still require costly molds. In addition, the connecting member 650 and the interval setting member 750 can be molded corresponding to different set amounts, and unnecessary mold costs can be prevented from being generated. In addition to this, the setting between the gear members 601 to 604, which becomes a problem in that case, becomes rough, the engagement widths of the tooth portions 601d to 604d of the gear members 601 to 604 become small, and the tooth portions 601d to 601d. Since the meshing amount of 604d is insufficient, the tooth surface pressure is increased, and it is possible to prevent a problem that the gear life cannot be properly exhibited due to a tooth crack or the like. Further, since the distance adjusting member is small and thin, and has the same size and shape, even if it is molded with a mold, an inexpensive small mold is sufficient. Furthermore, if the interstitial setting member is made of a sheet material, a more inexpensive mold such as a Thomson tooth mold can be used.

  FIG. 52 is a cross-sectional view showing an assembly 903 in which a driving force transmission member connecting structure according to still another embodiment of the second group of the present invention is implemented, and FIG. 53 (1) constitutes the assembly 903. It is a front view which shows the connection member 651, FIG.53 (2) is sectional drawing seen from the cut surface line GG-GG of FIG.53 (1), FIG.53 (3) is a rear view of the connection member 651. . Portions corresponding to the above-described embodiment are assigned the same reference numerals, and only different configurations will be described.

  The connecting member 651 is located on both sides in the axial direction in a position avoiding the convex connecting portion 650b in addition to the convex connecting portion 650b, and in this embodiment, at a position shifted by 90 degrees from the convex connecting portion 650b in the circumferential direction. Two concave connection portions 650a are formed. The concave connection portion 650a can be fitted with a convex connection portion 650b of another connection member 651, whereby the two connection members 651 are rotated and driven by the respective concave connection portions 650a and the convex connection portion 650b. It is connected so that force can be transmitted and detachable in the axial direction. Thus, as shown in FIG. 52, in a state where the two connecting members 651 are connected, they are interposed between the gear members 603 and 604, and the gear members 603 and 604 are connected between the gear members 603 and 604. Connection can be established by setting an interval twice as large as the thickness of 651. As a result, only one type of connecting member 651 is required, and the mold cost can be further reduced, and a plurality of intervals can be set between the gear members.

  FIG. 54 is a cross-sectional view showing an assembly 904 in which a drive force transmission member connecting structure according to still another embodiment of the second group of the present invention is implemented, and FIG. 55 (1) constitutes an assembly 5904. It is a front view which shows the space | interval setting member 751, FIG.55 (2) is sectional drawing seen from the cut surface line HH-HH of FIG. 55 (1). In the embodiment described with reference to FIGS. 49 and 50, the interval setting member 751 is small and difficult to handle at the time of work, and the number of work is required by the number of concave connecting portions. A form-setting interval setting member is implemented. The interval setting member 751 is formed with a bearing hole 751c through which the rotation shaft 703 is inserted and an insertion hole 751a through which the convex connection portion 650b of the connection member 650 is inserted. The inner diameter dimension of the bearing hole 130c is larger than the outer diameter of the rotating shaft 703, for example, slightly larger so that the distance setting member 751 is not displaced in the radial direction and hinders transmission of rotation of the gear members 603 and 604. It is.

As for this space | interval setting member 751, the convex connection part 650b penetrates the penetration hole 751a,
Furthermore, it arrange | positions so that it may fit in the recessed connection part 603a, 604a of each gear member 603,604. As a result, the mutual positions of the gear members 603 and 604 in the axial direction can be set, and the assembling work can be simplified.

  FIG. 56 is a cross-sectional view showing an assembly 905 in which a connecting structure of driving force transmission members according to still another embodiment of the second group of the present invention is implemented, and FIG. 57 (1) constitutes the assembly 905. It is a front view which shows the space | interval setting member 752, FIG.57 (2) is sectional drawing seen from the cut surface line II-II of FIG. 57 (1). This form is a form that can achieve the same effect as the form shown in FIGS. 54 and 55. The interval adjusting member 752 of this embodiment is an annular member in which a bearing hole 752c into which the rotating shaft 703 can be inserted is formed. The outer diameter dimension of the interval setting member 752 is selected to be smaller than the inner diameter at the radially inner end of the convex connection portion 650b of the connection member 650. The gap setting member 752 is interposed between the gear members 603 and 604 and the connecting member 650. In this state, the convex connecting portion 650b is fitted into the concave connecting portions 603a and 604a. In this embodiment, in addition to the above-described effects, the configuration of the interval setting member 752 is simple, and the manufacture becomes easy.

  In the embodiment shown in FIGS. 50 to 57, the embodiment has been described in which the interval between the gear members 603 and 604 is set using the connecting members 650 and 651 and the interval setting members 750 to 752, but the interval setting member shown in FIG. Since 750 is small, it is difficult to handle at the time of work, and the number of work is required by the number of the concave connection parts 603a and 603b. Also, in the configuration using the interval setting members 751 and 752 shown in FIGS. 55 and 57, it is necessary to interpose the interval adjusting members 751 and 752 between the gear members 603 and 604, so that a large number of operations are necessary. . A mode in which such problems can be solved and a fine interval can be set only by the driving force transmission member and the work can be simplified will be described below with reference to FIGS.

  FIG. 58 is a cross-sectional view showing an assembly 906 that is coupled in accordance with a coupling structure for driving force transmission members according to still another embodiment of the second group of the present invention. 59 (1) is a front view showing the gear member 603 constituting the assembly 906, and FIG. 59 (2) is a cross-sectional view of the gear member 603 as seen from the section line JJ-JJ in FIG. 59 (1). FIG. 59 (3) is a rear view of the gear member 603. 60 (1) is a front view showing the gear member 604 constituting the assembly 906, and FIG. 60 (2) is a cross-sectional view of the gear member 604 as seen from the cutting plane line KK-KK in FIG. 60 (1). FIG. 60 (3) is a rear view of the gear member 604. Portions corresponding to the above-described embodiment are assigned the same reference numerals, and only different configurations will be described.

  The gear member 603 of the present embodiment has a concave connecting portion 603a1 that is disposed on both side portions in the axial direction so that the depth from the side surface of each side portion is different and the depth dimension increases toward one side in the circumferential direction. , 603a2,..., 603an are formed at intervals in the circumferential direction. Each of the concave engaging portions 603a1 to 603an is formed at two locations, and the concave engaging portions having the same depth are formed at positions shifted by 180 degrees in the circumferential direction. The gear member 604 is formed with concave connection portions 604a1, 604a2,..., 604an similar to the concave connection portions 603a1 to 63an of the gear member 603, on both sides in the axial direction.

  In each of the concave engaging portions 603a1 to 603an; 604a1 to 604an, the depth dimensions of the concave connecting portions 603a1 and 604a1 having the largest depth are larger than the protruding height H21 of the convex connecting portion 650b of the connecting member 650. For example, the depths H22 of the concave coupling portions 601a to 604a of the gear members shown in FIGS. 43 to 46 are selected to be the same, and the remaining concave coupling portions 603a2 to 603an; 604a2 to 604an are convex couplings of the coupling member 650. The depth dimension of the concave connecting portion 603an; 604an having the smallest depth dimension is selected to be greater than the above-described lower limit engagement depth.

  The gear members 603 and 604 are coupled by selectively fitting the convex coupling portions 650b of the coupling member 650 to the concave coupling portions 603a1 to 603an; 604a1 to 604an of the gear members 603 and 604, respectively. The In FIG. 58, the convex connection part 650b of the connection member 650 is fitted to the concave connection part 603an having the smallest depth dimension among the gear members 603a1 to 603an, and has the deepest dimension among the gear members 604a1 to 604an. The state fitted to the large concave connection part 604a1 is shown.

  In this way, concave connection portions 603a1 to 603an; 604a1 to 604an having different depth dimensions are formed on the gear members 603 and 604, and the convex connection portions 650b of the connection member 650 are selectively connected to the gear members in a concave shape. By fitting the portions 603a1 to 603an; 604a1 to 604an, intervals are set in a multistage manner between the gear members 603 and 604 in accordance with the depth of the concave connection portions 603a1 to 603an; 604a1 to 604an to be selected. can do. Further, it is not necessary to use a separately provided interval setting member, and the assembly work of the assembly 906 can be simplified.

  58 to 60, the embodiment in which the concave connecting portions having different depths are formed in the driving force transmitting member has been described. However, by providing the connecting members with concave connecting portions having different depths, the driving force transmitting member can A mode of setting the mutual position of will be described with reference to FIG. 61 (1) is a front view showing a connecting member 650 according to still another embodiment of the second group of the present invention, and FIG. 61 (2) is viewed from the section line LL-LL in FIG. 61 (1). FIG. 61 (3) is a rear view of the connecting member 650. FIG. Portions corresponding to the above-described embodiment are assigned the same reference numerals, and only different configurations will be described.

  The connecting member 650 is formed with convex connecting portions 650b on both sides in the axial direction, and concave connecting portions 650a1, 650a2, ..., 650an are formed so as to avoid the convex connecting portions 650b. In each of the concave engaging portions 650a1 to 650an, the depth dimension of the concave connecting portion 650a1 having the largest depth dimension is larger than the protruding height H21 of the convex connecting portion 650b of the connecting member 650, for example, FIGS. Are selected to be the same as the depth dimension H22 of the concave coupling portions 601a to 604a of each gear member, and the remaining concave coupling portions 650a2 to 650an are smaller than the protruding height H21 of the convex coupling portion 650b of the coupling member 650. The depth dimension of the concave connecting portion 650an having the smallest depth dimension is selected to be equal to or greater than the aforementioned lower limit engagement depth.

  A plurality of connecting members 650 are provided between the gear members 603 and 604. The connecting members 650 are connected by selectively fitting the convex connecting portions 650b to the concave connecting portions 650a1 to 650an. Is done. When a plurality of connecting members 650 are used and connected to each other, concave connection portions 650a1 to 650an having different depth dimensions are formed, and the convex connection portions 650b are selectively fitted to the concave connection portions 650a1 to 650an. By doing so, it is possible to select the dimension in the axial direction of the entire connected members in a multistage manner according to the depth of the concave connecting portions 650a1 to 650an to be selected, and thereby the gear members 603, 604 are selected. The intervals can be set in a multistage manner. Further, it is not necessary to use a separately provided interval setting member, and the assembly work of the assembly 906 can be simplified.

  Next, when the drive transmission member is connected by the connecting member, both the concave fitting portion for interference fit and the concave connecting portion for clearance fit are provided, and the concave connecting portion is selected according to the application. This will be described with reference to FIGS. 62 and 63. FIG.

  FIG. 62 (1) is a front view showing a gear member 603 according to still another embodiment of the second group of the present invention, and FIG. 62 (2) is viewed from the cutting plane line MM-MM in FIG. 62 (1). FIG. 62 (3) is a rear view of the gear member 603. FIG. 63 (1) is a front view showing a gear member 604 connected to the gear member 603 shown in FIG. 62, and FIG. 63 (2) is a gear seen from the section line NN-NN in FIG. 63 (1). FIG. 63 is a cross-sectional view of the member 604, and FIG. 63 (3) is a rear view of the gear member 604. Portions corresponding to the above-described embodiment are assigned the same reference numerals, and only different configurations will be described.

  The gear members 603 and 604 are respectively formed with concave connection portions 603g and 603h; 604g and 604h on both sides in the axial direction. The gear members 603 and 604 are selectively fitted to the concave connection portions 603g and 603h; 604g and 604h by the connection members 650 having the convex connection portions 650b formed on both sides in the axial direction. Together. The concave connection portions 603g and 604g are fitted with the convex connection portion 650b of the connection member 650 in an interference fit state, and the concave connection portions 603g and 604h are clearances of the convex connection portion 650b of the connection member 650. It is formed so that it may be fitted in a state of becoming ugly.

  When the driving force transmission members 603 and 604 are provided so as to rotate integrally with the rotation shaft, the convex connection portions 650b are fitted into the concave connection portions 603g and 604g that are interference fits. Further, when each of the driving force transmission members 603 and 604 is provided so as to be rotatable with respect to the rotation shaft, the convex coupling portion 650b is fitted into the concave coupling portions 103h and 104h that are clearance fits. As a result, when the gear members 603 and 604 are provided so as to rotate integrally with the rotating shaft, it is possible to prevent the generation of sound due to play, and to be rotatable with respect to the rotating shaft. When the gear members 603 and 604 are provided, unnecessary load applied between the gear members 603 and 604 can be reduced. In this way, it is possible to selectively use according to each application, and the degree of freedom in combining the driving force transmission members is improved.

  42 to 63, since the connecting member 650 is interposed between the gear members 603 and 604, an interval corresponding to the thickness of the connecting member 650 is set between the gear members 603 and 604 in the axial direction. Will be. A form that can be suitably implemented when it is desired to avoid this in design will be described with reference to FIGS. 64 and 65. FIG. FIG. 64 is a sectional view showing an assembly 907 of still another embodiment of the second group of the present invention. FIG. 65 is an exploded view of the gear members 603 and 604 and the connecting member 650 constituting the assembly 907. FIG. Portions corresponding to the above-described embodiment are assigned the same reference numerals, and only different configurations will be described.

  The gear members 603 and 604 are formed with fitting portions 603k and 604k into which the connecting member 650 is fitted on both sides in the axial direction. The depth dimensions H25 and H26 of the fitting portions 603k and 604k are selected equally, and the sum of the depth dimensions H25 and H26 of the fitting portions 603k and 604k excludes the convex connecting portion 650b of the connecting member 650. It is selected to be slightly larger than the thickness dimension H24. Thus, in a state where the gear members 603 and 604 are connected by the connecting member 650, the connecting member is fitted and stored in the fitting portions 603k and 604k, and the gear members 603 and 604 are mutually connected. It can be provided in a state in which the gap is not set between the gear members 603 and 604 in a contact state.

  As another embodiment of the present invention, the depth dimensions H25 and H26 of the fitting portions 603k and 604k formed on the gear members 603 and 604 may be different depths. Moreover, the structure which forms a fitting part only in any one gear member 603,604 may be sufficient. In any of these cases, the same effect as that of the embodiment shown in FIGS. 64 and 65 can be achieved.

  66 (1) is an exploded sectional view showing an assembly 908A of still another embodiment of the second group according to the present invention, and FIG. 66 (2) is an embodiment according to the second group according to the present invention. FIG. 66 (3) is an exploded sectional view showing an assembly 908B of still another embodiment, and FIG. 66 (3) is an exploded sectional view showing an assembly 908C of still another embodiment of the second group of the present invention. is there. 66 (1) to 66 (3), the rotation shafts 703A, 703B, and 703C have different outer diameters.

  With reference to FIG. 66, a description will be given of a mode in which the same gear members 601 to 604 can be used even when the shaft diameters d1, d2, and dn are different among the plurality of rotating shafts 703A, 703B, and 703C. In a device such as a copying machine, the transmitted driving force is within a predetermined range except in special cases. Based on this, as shown in FIG. 66, the shaft diameters of the rotary shafts 703A to 703C for supporting the gear members 601 to 604 that can be used in common are set from the predetermined range to the shaft diameters dl. Set to ~ dn. Bearing 640A1, which is a shaft diameter setting member having inner diameter dimensions D31, D32, and D3n and having a constant outer diameter D30 so that rotary shafts 203A to 203C having predetermined shaft diameters d1 to dn can be rotatably inserted therethrough. 640A2; 640B1, 640B2; 640C1, 640C2 (hereinafter sometimes referred to as "bearings 640"), and gear members 601 to 604 (FIG. 66 shows only the gear members 601 and 604). The fitting holes 601c to 604c are selected to have the same inner diameter D35 so that the bearings 640 are fitted into the fitting holes 601c to 604c.

  Further, if the thickness of each bearing 640 is too thin, the interference fit does not work properly. Therefore, the outer diameter D30 of each bearing 640 is determined so that the thickness of each bearing 640 is equal to or greater than a predetermined thickness. . The concave connection portions 601a to 604a of the gear members 601 to 604 and the convex connection portion 650b of the connection member 650 are formed between the tooth portions 601d to 604d and the fitting holes 601c to 604c.

  By using the bearings 640 for such bearings, the shaft members 641A1, 641A2; 641B1, 641B2; 641C1, 641C2 of the bearings 640 are inserted into the rotating shafts 203A to 203C, thereby rotating the gear members 601 to 604. The same gear members 601 to 604 can be supported by the rotating shafts 203A to 203C having different diameters. Therefore, the gear members 603 having the same tooth part, for example, the tooth part 603c, are formed respectively for the rotating shafts 203A to 203C having different outer diameters corresponding to the outer diameters d1 to dn. There is no need, and the number of types of gear members 601 to 604 to be molded can be reduced regardless of the type of rotating shaft due to the difference in diameter. In this case, since each bearing 640 itself is simple in shape and small in size, even if the bearing 640 is formed by resin molding, the cost is lower than the mold of the gear member, and the entire mold The number of types is reduced, and the manufacturing cost is reduced.

  Here, in the configuration of each embodiment of the second group of the present invention shown in FIGS. 42 to 66 described above, the configuration capable of connecting the driving force transmission members having different effective diameters has been described. In order to connect the driving force transmission members having different effective diameters to each other by the common concave coupling portion and the convex coupling portion, the concave coupling portion and the convex coupling portion are connected to the axis and the outer peripheral portion of the driving force transmission member having the smallest effective diameter. What is necessary is just to form in the area | region which has a radius located between. As a result, regardless of the effective diameter of the driving force transmission member, it is possible to form a common concave coupling portion or convex coupling portion on all the driving force transmission members, and also use a common concave coupling portion or convex projection on the coupling member. A connecting portion can be formed. Therefore, it becomes possible to connect all the driving force transmission members.

  Further, in order to give the composite driving force transmission component configured using the driving force transmission member the strength necessary for transmitting the driving force, the concave coupling portion and the convex coupling portion are used when transmitting the driving force. The shape may be determined based on the force applied to the convex connection portion. Thus, it is possible to give sufficient strength to transmit the driving force to the convex connection portion without forming an unnecessarily large concave connection portion and convex connection portion. Furthermore, the concave connection portion and the convex connection portion, particularly the convex connection portion, may be formed in a shape extending in the circumferential direction. As a result, the area of the cross section perpendicular to the axial direction of the convex coupling portion can be reduced, and the strength against the force applied when transmitting the driving force can be increased.

  Furthermore, in order to enable all combinations of driving force transmission members with sufficient mechanical strength capable of transmitting the driving force, with respect to the driving force transmission members to be connected, the drive transmission acting portion from the axis line, For example, when the distance to the tooth portion is greatly different from that of the gear member, a large torque must be transmitted between the driving force transmitting members. At this time, the torque that each driving force transmission member must transmit is the same. Considering this point, the shape and size of each concave connecting portion and the convex connecting portion are determined so that the maximum torque generated when the driving force transmitting member having the maximum effective diameter and the driving force transmitting member having the minimum effective diameter are connected to each other. Assuming that the maximum torque can be transmitted, the shape and size may be determined. As a result, even if the driving force transmission member is connected in any combination, the convex connection portion has a sufficient strength.

  Further, in the configuration in which driving force transmission members having greatly different effective diameters are connected and a large force is applied to the concave connecting portion and the convex connecting portion, the convex connecting portion is damaged or the driving force transmitting member is A form that improves the reliability so that the problem that the drive force cannot be properly transmitted due to the distortion between the concave connection part or the convex connection part and the drive transmission action part that affects the drive transmission action part does not occur. This will be described with reference to FIG.

  FIG. 67 is a cross-sectional view showing an assembly 920 according to still another embodiment of the second group of the present invention. Portions corresponding to the above-described embodiment are assigned the same reference numerals, and only different configurations will be described. Each of the gear members 671 and 672 has concave connecting portions 671a and 672a formed on both sides in the axial direction. Each of the concave connection portions 671a and 672a has substantially the same configuration as each of the concave connection portions 601a to 604a of each of the gear members 601 to 604 described above, and is similarly formed at two positions with a phase shift of 180 degrees in the circumferential direction. ing.

  The concave connecting portion 671a of the gear member 671 having a small effective diameter is formed at a position of a distance R20 from the axis O between the bearing hole 671c through which the rotating shaft 703 is inserted and the tooth portion 671d. The concave coupling portion 672a of the gear member 672 having a large effective diameter is formed at a position of a distance R21 from the axis O between the bearing hole 672c through which the rotating shaft 703 is inserted and the tooth portion 672d. The distance R21 from the axis of the concave coupling portion 672a of the gear member 672 having a large effective diameter is selected to be greater than the distance R20 from the axis of the concave coupling portion 671a of the gear member 671 having a small effective diameter.

  The connecting member 652 is formed with two convex connecting portions 652b1 and 652b2 on both sides in the axial direction, with a phase difference of 180 degrees in the circumferential direction. The convex connection portion 652b1 on one side in the axial direction is formed at a position of a distance R20 from the axis O so as to be fitted to the concave connection portion 671a of the gear member 671 having a small effective diameter. The convex coupling portion 652b2 on the other side in the axial direction is formed at a position of a distance R21 from the axis O so as to be fitted into the concave coupling portion 672a of the gear member 672 having a large effective diameter.

  In each gear member 671, 672, the convex connection portion 652 b 1 on one side in the axial direction of the connection member 652 is fitted into the concave connection portion 671 a of the gear member 671, and the convex connection on the other side in the axial direction of the connection member 652. The portion 652b2 is fitted into the concave coupling portion 672a of the gear member 672, and is coupled via the coupling member 652. Accordingly, it is possible to connect the driving force transmitting members formed at the positions where the concave connecting portion or the convex connecting portion, in this embodiment, the concave connecting portion is different in the radial direction, via the connecting member. Further, a driving force transmitting member having a large effective diameter is formed on the driving force transmitting member having a large effective diameter by forming a concave connecting portion or a convex connecting portion, in this embodiment a concave connecting portion, at a position where the distance from the axis increases. It is possible to prevent an excessive force from being applied to the concave connection portion or the convex connection portion formed in the transmission member, in this embodiment, the concave connection portion. As a result, at least the convex connection part of the driving force transmission member having a large effective diameter or the convex connection part of the connection member fitted to the concave connection part of the driving force transmission member can be made difficult to be damaged. In addition, with such a configuration, in a driving force transmission member having a large effective diameter, the distance between the driving force transmission operation portion, in this embodiment, the tooth portion, and the concave connection portion or the convex connection portion, in this embodiment, the concave connection portion is reduced. In addition, the driving force transmission member is distorted between the concave coupling part or the convex coupling part and the driving transmission action part, which affects the driving transmission action part and causes a problem that the driving force cannot be transmitted properly. Can be prevented.

  As mentioned above, although various forms of the 2nd group of the present invention were explained in full detail with reference to FIGS. 42-67, invention of the 2nd group among the present invention is not limited to the above-mentioned form. For example, like the assembly 921 in another form shown in FIG. 68, the gear members 681 and 682 which are drive transmission members are provided with concave connection portions 681a and 682a and convex connection portions 681b and 682b on both sides in the axial direction. The connecting member 653 may have a configuration in which a concave connecting portion 653a and a convex connecting portion 653b are formed on both sides in the axial direction. In such a configuration, the concave coupling portions and the convex coupling portions may be formed alternately by shifting the phase by 90 degrees, for example, in the circumferential direction. Even in this configuration, the gear members 681 and 682 are connected to each other through the connecting member 653 by the concave connecting portions 681a and 682a; 653a and the convex connecting portions 681b and 682b; In addition to being able to be coupled so as to be able to transmit the driving force, the distance between the gear members 681 and 682 can be set according to the thickness of the coupling member 653 or using the above-described distance setting member.

  69, each gear member 683, 684, which is a drive transmission member, has convex connecting portions 683b, 684b formed on both sides in the axial direction. 654 may be configured such that concave coupling portions 654a are formed on both sides in the axial direction. In such a configuration, the concave coupling portions and the convex coupling portions may be formed alternately by shifting the phase by 90 degrees, for example, in the circumferential direction. Even in such a configuration, the gear members 683 and 684 are connected to each other via the connecting member 654 by the concave connecting portions 683a and 684a; 654a and the convex connecting portions 683b, 684b and 654b. In addition to being able to be coupled so as to be able to transmit the driving force, the distance between the gear members 683 and 684 can be set according to the thickness of the coupling member 654 or using the above-described distance setting member.

Furthermore, the invention of the second group of the present invention includes the following configurations.
(1) The rotation shaft, which is a rotation support member of the drive force transmission member, may be formed integrally with a resin drive frame, or a metal rotation support member is integrated with a sheet metal drive frame by caulking or the like. May be fixed.

  (2) The driving force transmission member may be a gear member, a pulley member that stretches a timing belt, a friction wheel member, or the like.

  (3) The combination of the two driving force transmission members arranged adjacent to each other on the same axis of the rotation support member is the same as the driving force transmission members having the same driving transmission action portion, for example, a gear member and a gear member. Alternatively, the driving force transmission members having different drive transmission acting portions, for example, a gear member and a pulley member may be used.

  (4) The cross-sectional shape of the convex coupling portion in the direction perpendicular to the axis and the cross-sectional shape of the concave coupling portion in the direction perpendicular to the axis need not be substantially the same as described above.

  (5) As a configuration in which the shapes of the concave connecting portion and the convex connecting portion are different, for example, a front view of FIG. 70 (1) and a cross section taken along the cutting plane line PP-PP in FIG. 70 (1) of FIG. 71 (1), a front view of FIG. 71 (1), a cross-sectional view taken along section line QQ-QQ in FIG. 71 (1) of FIG. 71 (2), and FIG. As shown in the rear view of 3), the gear members 690 and 691 which are driving force transmission members are provided between the reinforcing ribs 690e and 691e provided so as to connect the bearing holes 690c and 691c and the tooth portions 690d and 690d. It is good also considering the recessed part of this as the recessed connection part 690a, 691a. Even if it is such a structure, it can connect with a connection member how.

  (6) Further, in the above-described embodiment, the convex coupling part is engaged with the concave coupling part mainly focusing on the configuration of fitting at two places, but the convex coupling part is engaged with the concave coupling part at three or more places. Alternatively, it may be fitted at one place.

(7) The phase shift in the circumferential direction between the concave connection portion and the convex connection portion may be arranged with any phase shift.
(8) The height dimension of the convex coupling part may be larger than the depth dimension of the concave coupling part.

  (9) The driving force transmitting member has either a concave connecting portion or a convex connecting portion, and the connecting member is a convex connecting portion or a driving force transmitting member that can be fitted into the concave connecting portion of the driving force transmitting member. Although the configuration having either one of the concave coupling portions to which the convex coupling portion can be fitted has been described, the driving force transmission member and the coupling member are both axially arranged in the concave coupling portion and the convex coupling portion. Each of these side portions may be provided.

  (10) In the case of design parameters and gear members that determine the drive transmission action part of the drive force transmission member, the number of teeth, the module, the tooth width, and the material are not particularly limited. The members or the driving force transmitting members having the same setting parameter may be connected side by side on the same axis.

  (11) The present invention can be applied even when the driving force transmission member is rotatably fixed to the rotation support member or when the driving force transmission member is fixed to the rotation support member by a locking bin or the like and rotates integrally. .

  As described above, various embodiments of the present invention have been described. However, by implementing the above-described configuration alone or in combination, the number of types of driving force transmission members that require mold costs is further reduced. The driving force can be transmitted between the driving force transmitting members adjacent to each other on the same axis, and the driving force transmitting member can be used alone.

  In addition, the space | interval setting member shown to FIGS. 27-35 and 37 of a 1st group and the connection member of the 2nd group of this invention have a common function.

  Next, the third group related to the present invention will be described. In the description of the second group described above, with reference to FIG. 67, the description has been given of the form in which the driving transmission members having greatly different effective diameters are connected using the connecting member so that the driving force can be transmitted. Instead, it is possible to connect driving force transmission members having different effective diameters only with the driving force transmission member. This will be described with reference to FIGS.

  FIG. 72 (1) is a front view showing a gear member 690 which is a driving force transmission member of a third group of embodiments related to the present invention, and FIG. 72 (2) is a cut surface of FIG. 72 (1). It is sectional drawing of the gear member 690 seen from line RR-RR, FIG.72 (3) is a rear view of the gear member 690. FIG. 73 (1) is a front view showing a gear member 691 that can be connected to the gear member 690, and FIG. 73 (2) is a cross-sectional view of the gear member 691 as seen from the section line TT-TT in FIG. 73 (1). FIG. 73 (3) is a rear view of the gear member 691. 74 (1) is a front view showing a gear member 692 that can be connected to each of the gear members 690 and 961, and FIG. 74 (2) is a gear member 692 as viewed from the cutting plane line UU-UU of FIG. 74 (1). FIG. 7 (3) is a rear view of the gear member 692. In the present embodiment, as described above, three types of gear members 690 to 692 that transmit driving force by engaging the teeth of the outer peripheral portion with other members will be described as examples of the drive transmission member.

  The gear member 690 having the smallest effective diameter has a concave coupling portion 690a that is recessed from the remaining portion toward the other side portion in the axial direction on one side portion in the axial direction, and is provided with a concave coupling portion 690a. A convex connecting portion 690b that protrudes from the remaining portion in the direction away from the one side in the axial direction is formed on the other side in the axial direction opposite to the one side in the axial direction. A convex connecting portion 690b that protrudes from the remaining portion in the direction away from the one axial direction side is formed on the other axial side opposite to the one axial side provided with the concave connecting portion 690a. . The concave connection portion 690a and the convex connection portion 690b are formed in a shape that can be fitted, and are disposed at the same distance from the axis.

  The medium-diameter gear member 691 having an effective diameter larger than that of the small-diameter gear member 690 is formed with concave connection portions 691a1 and 691a2 that are recessed from the remaining portion toward the other axial portion on one side in the axial direction. The concave connecting portions 691a1 and 691a2 are formed at different positions from the axis. The concave connecting portion 691a1 is formed so that the distance from the axis is the same as the concave connecting portion 690a and the convex connecting portion 690b of the small-diameter gear member 690, and the concave connecting portion 691a2 is closer to the axis than the concave connecting portion 691a1. It is formed at a position where the distance becomes larger. Further, the gear member 691 has a protrusion protruding from the remaining portion in the direction away from the one side in the axial direction on the other side in the axial direction opposite to the one side in the axial direction provided with the concave connecting portions 691a1 and 691a2. A connecting portion 691b is formed. The concave connection portion 691a2 and the convex connection portion 691b are formed in a shape that can be fitted, and are disposed at the same distance from the axis.

  The large-diameter gear member 692 having an effective diameter larger than that of the medium-diameter gear member 691 has concave coupling portions 692a1, 692a2, and 692a3 that are recessed in one axial direction side portion from the remaining portion toward the other axial direction side portion. The concave connection portions 692a1 to 692a3 are formed at different positions from the axis. The concave coupling portion 692a1 is formed such that the distance from the axis is the same as the concave coupling portion 690a and the convex coupling portion 690b of the small-diameter gear member 690, and the concave coupling portion 692a2 is a concave shape of the medium-diameter gear member 691. The connecting portion 691a2 and the convex connecting portion 691b are formed to have the same distance from the axis, and the concave connecting portion 692a3 is formed at a position where the distance from the axis is larger than the concave connecting portion 692a2. Further, the gear member 692 has a protrusion protruding from the remaining portion in the direction away from the one side in the axial direction on the other side in the axial direction opposite to the one side in the axial direction provided with the concave coupling portions 692a1 to 692a3. A connecting portion 692b is formed. The concave connection portion 692a3 and the convex connection portion 692b are formed in a shape that can be fitted, and are disposed at the same distance from the axis.

  Each concave coupling portion 690a; 691a1, 691a2; 692a1 to 692a3 is formed so that the height dimension H41 of each convex coupling portion 690b to 692b is smaller (H41 <H42). In addition, the convex connection portion 690b is formed in a shape that can be stably fitted to the concave connection portions 690a, 691a1, and 692a1 without significant backlash, and that the fitting and detaching operations can be smoothly performed. . The convex connecting portion 691b is formed in a shape that can be stably fitted to the concave connecting portions 691a2 and 692a2 without being greatly struck, and that the fitting and detaching operations can be smoothly performed. The convex connection part 692b is formed in a shape that can be stably fitted to the concave connection part 692a3 without significant backlash and that the fitting and detaching operations can be smoothly performed.

  Each of these concave connection portions 690a; 691a, 691a2; 692a1 to 692a2 and each of the convex connection portions 690b to 692b are formed so as to penetrate the central portions of the respective gear members 690 to 692 in the axial direction as described above. Are formed at every 180 degrees in the circumferential direction between the bearing holes 690c to 692c and the tooth portions 690d to 692d which are driving force transmission acting portions.

  With this configuration, the gear members 690 to 692 are selectively used to generate driving force by the concave connection portions 690a; 691a, 691a2; 692a1 to 692a2 and the convex connection portions 690b to 692b. It can be connected so that transmission is possible and detachable depending on the axial direction. Therefore, it is possible to assemble a large number of composite driving force transmission parts using a small number of types of driving force transmission members with a configuration that does not use a connecting member, and the cost required for the mold can be reduced. The same effect as that of the embodiment shown in FIG. 67 can be achieved.

  Next, a fourth group related to the present invention will be described with reference to FIGS. In the configuration of the above-described group invention, in the configuration in which the interval between the driving force transmission members is set using the interval setting members 106, 130, 131; 750 to 752, the connecting portion provided in the circumferential direction of the driving force transmission member Since the minimum engagement depth is determined in accordance with the number of the drive transmission members, the minimum set amount and the set step number of the mutual positions of the drive transmission members are determined. If the minimum setting amount that can set the mutual position between the driving force transmission members is made smaller and the number of setting steps is increased, it will be disadvantageous in terms of the strength of the driving force transmission member and the ellipticity of the drive transmission action part will be reduced Such a problem may occur. In particular, when a concave coupling portion or a convex coupling portion is formed near the bearing hole, the tendency becomes strong.

  In order to eliminate such problems, the fourth group of inventions related to the present invention is preferably implemented. FIG. 75 is a cross-sectional view showing an assembly 925 in which the driving force transmission member coupling structure of the fourth group of embodiments related to the present invention is implemented. 76 (1) is a front view showing a gear member 695 which is a driving force transmission member constituting the assembly 925, and FIG. 76 (2) is a gear viewed from the section line WW-WW in FIG. 76 (1). FIG. 76 is a sectional view of the member 695, and FIG. 76 (3) is a rear view of the gear member 695. 77 (1) is a front view showing the gear member 696 constituting the assembly 925, and FIG. 77 (2) is a cross-sectional view of the gear member 697 as seen from the section line XX-XX in FIG. 77 (1). FIG. 77 (3) is a rear view of the gear member 696. In this embodiment, as described above, two types of gear members 695 and 696 that transmit driving force by engaging the teeth on the outer peripheral portion with other members will be described as examples of the drive transmission member.

  The gear member 695 is formed with engaging means 695f on one side in the axial direction. The engagement means 695f is formed in two places every 180 degrees in the circumferential direction. As shown in an enlarged view in FIG. 78, the engaging means 695f has a plurality of recesses 695a and a plurality of protrusions 695b formed alternately at equal intervals in the circumferential direction. Each recess 695a is a V-shaped recess, and each projection 695b between each recess 685a is an inverted V-shaped projection. Each of the recesses 695a and each of the protrusions 695b has an engagement allowance K1 and is formed to have a step difference h in the axial direction, that is, at a certain distance in the axial direction as it goes to a certain distance in the circumferential direction. ing. Similarly to the gear member 695, the gear member 696 is also formed with an engagement means 696f on one side in the axial direction. The engagement means 696f has the same recesses 695a as shown in FIG. And each protrusion 696ba is formed. Each engaging means 695f and 696f is formed between bearing holes 695c and 696c through which a rotating shaft 721 described later is inserted, and tooth portions 695d and 696d.

  The gear members 695 and 696 are connected by engaging the engagement means 695f and 696f so that the projections 696b are fitted in the recesses 695a and the projections 695b are fitted in the recesses 696a. Thus, an assembly 925 can be formed. By forming such engagement means on each driving force transmission member, including other driving force transmission members (not shown), each driving force transmission member can be connected, and there are few types of driving force transmission members. By this, it is possible to achieve the same effect as that of the above-described group of the present invention in which a large number of composite driving force transmission members can be configured. Further, by selecting the recesses 695a and 696a into which the protrusions 695b and 696b are fitted, that is, by selecting the positions of the gear members 695 and 696 around their mutual axes, the distance between the gear members 695 and 696 is determined. Can be arbitrarily selected and set.

  As shown in FIG. 75, a rotation shaft 721 that is a rotation support member is integrally fixed to the frame 720 and is erected. A rotating shaft 721 is inserted through each gear member 695,696, and each gear member 695,696, that is, an assembly 925 is rotatably supported. In this state, the assembly 925 is supported by the boss portion 721a of the rotating shaft 721 on one side in the axial direction and is prevented from being displaced, and on the other side in the axial direction, the assembly 925 is composed of an E ring or the like that is engaged with the rotating shaft 721. The displacement is blocked by the blocking member 800. At this time, in the case where play is provided in the interval between the displacement prevention member 800 and the boss portion 721a of the rotating shaft 721, the play needs to be smaller than the dimension obtained by subtracting the step h from the engagement allowance K. is there. Note that the number of the recesses 695a and 696 and the protrusions 695b and 696b to be engaged with the engagement allowance K may be determined according to the magnitude of the torque generated when the driving force is transmitted.

  Each recess and projection need not be V-shaped. As another form, as shown in FIG. 80, each recess 810a and each projection 810b are formed in a rectangular shape with an engagement margin K1 and a step h. You may do it. At this time, the width B2 of the recess 810a is selected to be larger than the width B1 of the protrusion 810b. If the play in the rotational direction is to be reduced, the width B2 may be made slightly larger than the width B1.

  As another form, as shown in FIG. 81, each recess 811a and each projection 811b may be formed in a stepped shape in which the engagement allowance K1 and the step height h coincide. In this case, since the engagement is disengaged in the direction opposite to the direction in which the stepped portion comes into contact, a member for locking the mutual rotation between the driving force transmission members may be provided separately.

  82 (1) is a front view showing a gear member 697 of another embodiment of the fourth group related to the present invention, FIG. 82 (2) is a side view of the gear member 697, and FIG. ) Is a rear view of the gear member 697, and FIG. 82 (4) is a cross-sectional view of the gear member 697 as viewed from the cutting plane line YY-YY of FIG. 82 (1). 83 (1) is a front view showing a gear member 698 that can be engaged with the gear member 697, FIG. 83 (2) is a side view of the gear member 698, and FIG. 83 (3) is a rear view of the gear member 698. FIG. 83 (4) is a cross-sectional view of the gear member 698 viewed from the cutting plane line ZZ-ZZ in FIG. 83 (1).

  The gear member 697 is formed with engaging means 697f and 697g on one side in the axial direction. The engaging means 697f is formed in a recessed portion located in a recessed area recessed from one side in the axial direction, and the engaging means 697g is formed in a raised portion located in a raised area protruding from the one side in the axial direction. Yes. Each engaging means 697f, 697g is formed at two positions every 180 degrees in the circumferential direction. In the engaging means 697f and 697g, a plurality of recesses 697a and a plurality of protrusions 697b are alternately formed adjacent to each other at equal intervals in the circumferential direction as shown in an enlarged view in FIG. Each recess 697a is a V-shaped recess, and each protrusion 697b between each recess 687a is an inverted V-shaped protrusion. Each of the recesses 697a and each of the protrusions 697b have an engagement allowance K1 and are formed with a certain distance in the axial direction as the distance in the circumferential direction increases, that is, with a level difference h for each pitch p. ing. Similarly to the gear member 697, the gear member 698 is also formed with engaging means 698f and 698g on one side in the axial direction. The engaging means 698f and 698g have the same structure as shown in FIG. Recesses 698a and protrusions 698ba are formed. Each engagement means 697f, 697g; 698f, 698g is formed between bearing holes 697c, 698c through which a rotation shaft 721 similar to the rotation shaft shown in FIG. 75 is inserted, and tooth portions 697d, 698d.

  Each gear member 697, 698 has a raised portion where the engaging means 697g, 698g are formed fitted in a recessed portion where the engaging means 697f, 698f are formed, and each projection 698b is fitted in each recess 697a. The engaging means 697f, 697g; 698f, 698g are engaged with each other so that the protrusions 697b fit into the recesses 698a. By forming such engagement means on each driving force transmission member, including other driving force transmission members (not shown), each driving force transmission member can be connected, and there are few types of driving force transmission members. By this, it is possible to achieve the same effect as that of the above-described group of the present invention, in which a large number of composite driving force transmission parts can be configured. Further, by selecting the recesses 695a and 696a into which the protrusions 695b and 696b are fitted, that is, by selecting the positions of the gear members 695 and 696 around their mutual axes, the distance between the gear members 695 and 696 is determined. Can be arbitrarily selected and set.

  In addition, if the height dimension of the protruding part of the raised part is smaller than the depth dimension of the deepest part of the depressed part, it is possible to connect even when the side surfaces of the driving force transmission member are in close contact with each other. become.

  75 to 85, the configuration for connecting the driving force transmitting members is described. However, as another mode, the connecting members are interposed between the driving force transmitting members, and both side portions in the axial direction of the connecting members. In addition, an engaging means similar to each of the driving force transmitting members 695 to 698 described above may be formed, and the driving force transmitting members may be connected by interposing a connecting member using the engaging means. . As a result, the connecting member can set large intervals between the driving force transmitting members in a fine and multi-stage manner, and can eliminate a decrease in strength of the driving force transmitting member and the connecting member.

In particular, in the configuration in which the connecting member is interposed as described above, the driving force transmitting member is formed with the engaging means in the recessed region as described above, and the connecting member is formed with the engaging means in the raised region as described above. Then, using these engaging means, a protrusion may be fitted into the recess and connected. As a result, each driving force transmission member can be connected via the connecting member, and the driving force transmission member has no protruding portion on both axial sides, and can be reduced in thickness. For example, an E-ring as described above can be used as a displacement prevention member for preventing the driving force transmission member from being displaced relative to the rotation shaft when used alone and supported by the rotation shaft. , Make the work easier.

The following embodiments are possible for the present invention.
(1) A plurality of driving force transmission members having at least one of a concave coupling portion and a convex coupling portion formed on one side in the axial direction are provided, and the plurality of driving force transmission members are selectively used to form a concave shape. At least one of the driving force transmitting members connected to be connected to or connected to the connecting portion or the convex connecting portion so that the driving force can be transmitted by rotating around the axis and detachable in the axial direction is equal to the axial direction. A connecting structure for a driving force transmitting member, characterized in that a concave connecting part is formed on the side part and a convex connecting part is formed on the other side part in the axial direction.

  The driving force transmitting member for rotating and transmitting the driving force has at least one of a concave connecting portion and a convex connecting portion, and is rotated around the axis by the concave connecting portion or the convex connecting portion. The driving force can be transmitted and connected in an axially detachable manner. In connecting each driving force transmitting member, each driving force transmitting member may be connected by directly fitting the convex connecting portion of one driving force transmitting member to the concave connecting portion of the other driving force transmitting member. Further, another member is interposed between the driving force transmission members, and the convex coupling portion of each driving force transmission member is fitted to the concave coupling portion formed on the other member, or is formed on the other member. You may connect and connect a convex connection part to the concave connection part of each driving force transmission member.

In this way, at least one of the driving force transmission members connected by the concave connection portion and the convex connection portion has a concave connection portion formed on one side in the axial direction and a convex connection on the other side in the axial direction. Part is formed. As a result, another driving force transmitting member and another member connected to the driving force transmitting member in which each connecting portion is individually formed on each side portion is formed as either a concave connecting portion or a convex connecting portion. If so, they can be connected. Thus, by providing the driving force transmission member in which each connecting part is individually formed on each side portion, a composite type driving force transmission component that can be configured by selectively combining a plurality of driving force transmission members. There can be many kinds. Accordingly, it is possible to reduce the types of driving force transmission members required for manufacturing a necessary type of composite driving force transmission component, and it is possible to reduce the types of molds. In addition, the shape of the mold is simple compared to the case where the same component as the composite driving force transmission component is molded with one mold. Thus, since the types of molds can be reduced and the shape thereof can be simplified, the productivity of the composite driving force transmission component can be improved and the manufacturing cost can be reduced. Needless to say, the driving force transmission member can be used alone.
Note that the rotation includes an angular displacement of less than 360 degrees.

  (2) Each driving force transmission member is rotatably supported by the rotation support member inserted therethrough, and is detachably engaged with the rotation support member to prevent axial displacement of each driving force transmission member with respect to the rotation support member. And a spacer member that can be attached to a side portion where the convex connection portion of each driving force transmission member is formed and has a thickness greater than the protruding height of the convex connection portion. At least one of the driving force transmitting members is connected to another driving force transmitting member on the side opposite to the side where the convex connecting portion is formed, and the convex of the at least one driving force transmitting member is A connecting structure for a driving force transmission member, wherein a spacer member is attached to a side portion where the connecting portion is formed, and a displacement preventing member is engaged with a portion protruding from the spacer member of the rotation support member.

  Each drive force transmission member is rotatably supported by inserting a rotation support member. By displacing the displacement prevention member to the rotation support member, the displacement with respect to the rotation support member is prevented, and the rotation support member is prevented from falling off. Is prevented. When each driving force transmission member has a convex connection portion, a spacer member can be attached to a side portion where the convex connection portion of the driving force transmission member is formed. Since the spacer member has a thickness equal to or greater than the protruding height of the convex connecting portion, the convex connecting portion does not protrude more than the spacer member when the spacer member is mounted on the driving force transmission member.

  As a result, at least one of the driving force transmission members is connected to another driving force transmission member at the side opposite to the side where the convex connection portion is formed, and the side portion where the convex connection portion is formed. In order to prevent the displacement of each driving force transmission member relative to the rotation support member when released, the convex connecting portion is attached by mounting the spacer member on the side portion where the released convex connecting portion is formed. Regardless of the position of the convex engagement portion such as formed close to the rotation support member, the displacement prevention member is mounted in the axial direction and the radial direction without being obstructed by the convex connection portion. Moreover, the area | region for the attachment / detachment work can be ensured.

  Therefore, even when the convex connection portion is formed at a position close to the rotation support member in a state where the rotation support member is inserted into each driving force transmission member, the displacement prevention member is mounted using the spacer member. Therefore, it is not necessary to use a special member as the displacement prevention member. In other words, the displacement of each driving force transmitting member relative to the rotation support member is provided on the side portion where the convex connection portion is formed and the side portion where the concave connection portion is formed by providing the same displacement prevention member. It is possible to prevent and dismount the displacement preventing member easily, work to assemble each of the driving force transmission members by assembling the composite driving force transmission components, and to disassemble the composite driving force transmission components Can be quick and easy. As the displacement prevention member, for example, commercially available members such as an E ring and a C ring can be used as the displacement prevention member, and are easily available.

  (3) Each driving force transmission member is rotatably supported through the rotation support member, is detachably engaged with the rotation support member, and prevents displacement of each driving force transmission member with respect to the rotation support member. The driving force transmission member including the member and formed with the convex connection portion is secured and connected to the rotation support member in an area radially inward of the convex connection portion. At least one of the driving force transmission members is connected to another driving force transmission member at a side opposite to the side where the convex connection portion is formed, and the at least one driving force transmission member A driving force transmission member, wherein a displacement preventing member is engaged with a portion of the rotation support member that protrudes from the at least one driving force transmission member in a region radially inward of the convex coupling portion. Connection structure.

  Each drive force transmission member is rotatably supported by inserting a rotation support member. By displacing the displacement prevention member to the rotation support member, the displacement with respect to the rotation support member is prevented, and the rotation support member is prevented from falling off. Is prevented. When each driving force transmission member has a convex connecting portion, a displacement preventing member is provided on a side portion where the convex connecting portion of the driving force transmitting member is formed on a radially inward side of the convex connecting portion. An area for mounting and attaching / detaching work is secured.

  Therefore, it is not necessary to use a special member as the displacement prevention member engaged with the rotation support member in order to prevent the displacement of each driving force transmission member relative to the rotation support member. In other words, the displacement of each driving force transmitting member relative to the rotation support member is provided on the side portion where the convex connection portion is formed and the side portion where the concave connection portion is formed by providing the same displacement prevention member. It is possible to prevent and dismount the displacement preventing member easily, work to assemble each of the driving force transmission members by assembling the composite driving force transmission components, and to disassemble the composite driving force transmission components Can be quick and easy. As the displacement prevention member, for example, commercially available members such as an E ring and a C ring can be used as the displacement prevention member, and the acquisition thereof is also easy. Moreover, the protrusion amount of the rotation support member can be reduced.

  (4) The driving force transmission member in which the convex connection portion is formed has a concave connection portion in addition to the convex connection portion on the side portion where the convex connection portion is formed. Connection structure of force transmission member.

  The driving force transmission member in which the convex connection portion is formed has a concave connection portion on the side portion on the side where the convex connection portion is formed. When both of the force transmission members have a convex connecting portion, it is possible to connect the side portions where the convex connecting portions are formed facing each other. Thereby, when connecting the driving force transmission member in which a convex connection part is formed only in one side part, it can connect in the state where a convex connection part is not released. Therefore, it is possible to reduce the axial length of the composite driving force transmission component assembled by connecting the driving force transmission members.

  In particular, each drive force transmission member is inserted into the rotation support member, and the displacement prevention member is engaged with the rotation support member to prevent the displacement of each drive force transmission member from the rotation support member. A region for mounting the displacement prevention member is surely secured on the side where the force transmission member is released, and the displacement of each driving force transmission member with respect to the rotation support member is prevented, and the rotation support of each driving force transmission member is achieved. In order to prevent dropping from the member, it is not necessary to use a special member as a displacement prevention member engaged with the rotation support member, and the side of the side where the convex connection part is formed and the concave connection part are formed. The same displacement prevention member can be used on the side of the side, the attachment / detachment work of the displacement prevention member can be facilitated, and each drive force transmission member is connected to assemble a composite drive force transmission component Work and composite type Working degrade power transmission component can be quickly and easily. As the displacement prevention member, for example, commercially available members such as an E ring and a C ring can be used as the displacement prevention member, and the acquisition thereof is also easy. Moreover, the protrusion amount of the rotation support member can be reduced.

  (5) A drive force transmission member coupling structure comprising an interval setting member interposed between the drive force transmission members and setting an interval according to the thickness between the drive force transmission members.

  An interval setting member is interposed between the driving force transmission members, and an interval corresponding to the thickness of the interval setting member can be set between the driving force transmission members. Moreover, compared with the structure which provides the part for setting the space | interval of each driving force transmission member when it connects with the driving force transmission member integrally, the increase in the kind of driving force transmission member can be suppressed. .

  (6) The gap setting member is selectively formed with a concave coupling part or a convex coupling part on both sides in the axial direction, and each driving force transmission member and the gap setting member includes the driving force transmission member and the gap setting member. The driving force transmission member coupling structure is characterized in that the driving force can be transmitted by rotating around the axis and detachably connected in the axial direction by the concave coupling portion or the convex coupling portion.

  The spacing setting member is selectively formed with convex coupling portions or concave coupling portions on both sides in the axial direction, and each driving force transmission member and the spacing setting member is a convex shape of each driving force transmission member and the spacing setting member. The connecting portion or the concave connecting portion is connected so as to be able to transmit a rotational force around the axis and to be detachable in the axial direction. This is a case where each driving force transmission member needs to be arranged at a large interval so that the convex coupling portion formed on each driving force transmission member cannot be directly fitted into the concave coupling portion. However, each driving force transmission member can be connected via the interval setting member so that the driving force can be transmitted by rotating.

  (7) The coupling structure of the driving force transmission member, wherein the interval setting member has concave coupling portions formed on both sides in the axial direction.

  Since the interval setting member is formed with concave connecting portions on both sides in the axial direction, each driving force transmitting member is in a state where the convex connecting portion is fitted to the concave connecting portion of the interval adjusting member. Can be linked to. As a result, the axial length of the composite driving force transmitting component assembled by connecting the driving force transmitting members can be shortened. In particular, when a rotation support member is used, the amount of protrusion can be reduced.

  (8) A driving force transmitting member coupling structure, wherein one or a plurality of interval setting members are selectively used and interposed between the driving force transmitting members.

  One or a plurality of interval setting members are selectively used and interposed between the driving force transmission members. Accordingly, the driving force transmission members can be connected in a state in which the distances between the driving force transmission members are set to different intervals by using one kind of interval adjusting member when the number is the smallest or the smallest.

  (9) Each driving force transmission member is formed with a fitting hole penetrating in the axial direction, can be fitted into each fitting hole of each driving force transmission member, and has a plurality of insertion holes having different inner diameters. The ring-shaped shaft diameter setting member is selectively used to be fitted into each fitting hole, and each driving force transmitting member can be rotated by inserting the rotation support member through the insertion hole of the shaft diameter setting member. A driving force transmission member coupling structure characterized by being supported by the above.

  Each driving force transmission member is formed with a fitting hole penetrating in the axial direction, and a shaft diameter setting member can be fitted into each fitting hole of each driving force transmission member. The shaft diameter setting member has an annular shape, and a plurality of shaft diameter setting members having different inner diameters are selectively used and fitted into the fitting holes of the respective driving force transmission members. The rotation support member is inserted, and each driving force transmission member is rotatably supported. Thus, when each driving force transmission member is rotationally supported by a rotation support member having a different outer diameter, it is not necessary to prepare each driving force transmission member in correspondence with the outer diameter of the rotation support member. Even if the outer diameter of the rotation support member is different, only one type is required.

  (10) A plurality of driving force transmission members having a concave coupling portion formed on one side in the axial direction and a convex coupling portion formed on the other side in the axial direction are provided, and the concave coupling portion has a predetermined radial direction. Of the plurality of different regions, it is formed at least in the radially inner region, and as the effective diameter increases according to the effective diameter of the driving force transmission member, it is formed to the radially outer region, and is connected in a convex shape. The portion is formed in a region where the most radially outward concave connecting portion is formed, and the plurality of driving force transmission members are selectively used around the axis by the concave connecting portion or the convex connecting portion. A driving force transmitting member coupling structure, wherein the driving force transmitting member is coupled so as to be able to rotate to transmit a driving force and to be detachable in an axial direction.

  The driving force transmission member for rotating and transmitting the driving force is formed with a concave coupling portion and a convex coupling portion on both sides in the axial direction, respectively, and the axis line is formed by the concave coupling portion or the convex coupling portion. It is connected so that it can rotate around and transmit a driving force, and can be attached and detached in the axial direction. When connecting each driving force transmission member, each driving force transmission member is connected by directly fitting the convex connection portion of one driving force transmission member to the concave connection portion of the other driving force transmission member.

  As described above, each driving force transmission member has a concave coupling portion formed on one side in the axial direction and a convex coupling portion formed on the other side in the axial direction. Accordingly, each driving force transmission member can be arbitrarily selected and connected, and the number of types of composite driving force transmission components that can be configured by selectively combining a plurality of driving force transmission members is increased. Can do. Accordingly, it is possible to reduce the types of driving force transmission members required for manufacturing a necessary type of composite driving force transmission component, and it is possible to reduce the types of molds. In addition, the shape of the mold is simple compared to the case where the same component as the composite driving force transmission component is molded with one mold. Thus, since the types of molds can be reduced and the shape thereof can be simplified, the productivity of the composite driving force transmission component can be improved and the manufacturing cost can be reduced.

In addition, the concave coupling portion is formed from the most radially inner region to the radially outer region according to the effective diameter of the driving force transmission member, and the convex coupling portion is the most radially outer region. It is formed in the region of the concave connection part formed in the. As a result, the convex connection portion is formed in the radially outer region as much as possible, so that the force applied to the convex connection portion when transmitting the driving force can be made as small as possible. Further, since the concave connecting portion is formed from the most radially inner region to the radially outer region corresponding to the effective diameter of the driving force transmitting member, the two selected driving force transmitting members are The convex connecting portion of one of the driving force transmitting members can be fitted into any one of the other concave connecting portions, and two arbitrarily selected driving force transmitting members can be connected to each other. is there.
Needless to say, the driving force transmission member can be used alone.

  (11) A plurality of driving force transmission members having engaging means formed on one side in the axial direction are provided, and the engaging means has a plurality of recesses and a plurality of protrusions adjacent to each other at equal intervals in the circumferential direction. The recesses and the protrusions are alternately formed, and the recesses and the protrusions are formed at positions shifted by a certain distance in one of the axial directions as they move to a certain distance in the circumferential direction, and a plurality of driving force transmission members are selectively used. The recesses and the projections are selectively fitted to engage the engagement means, and the rotational force can be transmitted to each other around the axis, and can be detachably connected to each other in the axial direction. A drive force transmission member coupling structure characterized by the above.

  The driving force transmitting member for rotating and transmitting the driving force has engaging means formed on one side in the axial direction, and the engaging means is adjacent to the circumferential direction at equal intervals and has a plurality of recesses. And the processus | protrusion is formed alternately. Each driving force transmission member can be engaged with each engaging means by selectively fitting each projection into each recess, and each driving force transmission member can be connected. Accordingly, each driving force transmission member can be arbitrarily selected and connected, and the number of types of composite driving force transmission components that can be configured by selectively combining a plurality of driving force transmission members is increased. be able to. Accordingly, it is possible to reduce the types of driving force transmission members required for manufacturing a necessary type of composite driving force transmission component, and it is possible to reduce the types of molds. In addition, the shape of the mold is simple compared to the case where the same component as the composite driving force transmission component is molded with one mold. Thus, since the types of molds can be reduced and the shape thereof can be simplified, the productivity of the composite driving force transmission component can be improved and the manufacturing cost can be reduced.

In addition, each recess and each projection formed in each engagement means is formed at a position shifted by a certain distance in the axial direction as it goes to a certain distance in the circumferential direction, and a recess to which each projection is fitted is selected By doing so, the mutual positional relationship of each driving force transmission member can be selected. Therefore, it is not necessary to separately provide a member for setting the positional relationship of each driving force transmitting member, and it is not necessary to separately prepare a mold. Also, the operation for setting the positional relationship between the driving force transmission members is easier than in the case of using a separate member.
Needless to say, the driving force transmission member can be used alone.

  (12) A driving force including a plurality of driving force transmitting members in which engaging means are formed in a recessed region on one side in the axial direction, and a connecting member in which engaging means are formed in raised regions on both sides in the axial direction. A plurality of recesses and a plurality of protrusions are alternately formed adjacent to each other in the circumferential direction at equal intervals in the engaging means of the transmission member and the connecting member, and each recess and each protrusion are constant in one of the circumferential directions. As the distance goes, it is formed at a position shifted by a certain distance in one of the axial directions, and the plurality of driving force transmission members are selectively used, and each recess and projection of the driving force transmission member and each of the connection members The recesses and the projections are selectively fitted to engage the respective engagement means, and are connected via a connecting member so as to be able to transmit a driving force by rotating around the axis and to be detachable in the axial direction. A drive force transmission member coupling structure characterized by that.

  The driving force transmission member for rotating and transmitting the driving force has an engaging means formed in a recessed area on one side in the axial direction, and the connecting member for connecting the driving force transmission member has an axial direction. Engaging means are formed in the raised regions on both sides. The engaging means has a plurality of recesses and protrusions alternately formed adjacent to each other at equal intervals in the circumferential direction. Each driving force transmission member can selectively engage each recess and each projection of the driving force transmission member and each recess and each projection of the connecting member to engage each engagement means. Each driving force transmission member can be connected via a connecting member. Accordingly, each driving force transmission member can be arbitrarily selected and connected, and the number of types of composite driving force transmission components that can be configured by selectively combining a plurality of driving force transmission members is increased. be able to. Accordingly, it is possible to reduce the types of driving force transmission members required for manufacturing a necessary type of composite driving force transmission component, and it is possible to reduce the types of molds. In addition, the shape of the mold is simple compared to the case where the same component as the composite driving force transmission component is molded with one mold. Thus, since the types of molds can be reduced and the shape thereof can be simplified, the productivity of the composite driving force transmission component can be improved and the manufacturing cost can be reduced.

  In addition, each recess and each projection formed in each engagement means is formed at a position shifted by a certain distance in the axial direction as it goes to a certain distance in the circumferential direction, and a recess to which each projection is fitted is selected By doing so, the mutual positional relationship of each driving force transmission member can be selected. Therefore, it is not necessary to separately provide a member for setting the positional relationship of each driving force transmitting member, and it is not necessary to separately prepare a mold. Also, the operation for setting the positional relationship between the driving force transmission members is easier than in the case of using a separate member. Furthermore, the driving force transmission member can be used as a single item. In such a case, the engaging portion of the driving force transmission member is formed in the recessed region, and causes a problem such that the engaging means protrudes. There is no.

It is sectional drawing which shows the copying machine with which the connection structure of the driving force transmission member of this invention is implemented. FIG. 2 is a cross-sectional view of a circulation type automatic document feeder, a main document placing device, and an optical device of a copying machine. 2 is a cross-sectional view of an image forming device, a fixing device, and a sheet feeding device of a copying machine. It is sectional drawing which shows the connection structure of the driving force transmission member of one Embodiment of 1st group relevant to this invention. It is a figure which shows the gear member 103, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 104, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 101, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 102, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is sectional drawing which shows the connection structure of other form of implementation of the 1st group relevant to this invention. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the spacer member 105, (1) is a front view, (2) is sectional drawing. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the spacer member 120 of another form, (1) is a front view, (2) is sectional drawing. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is the top view seen from the upper side of FIG. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the gear member 103 of another form, (1) is a front view, (2) is sectional drawing, (3) is sectional drawing, (4) is a rear view. It is a figure which shows the gear member 104 of another form, (1) is a front view, (2) is sectional drawing, (3) is sectional drawing, (4) is a rear view. Furthermore, it is a figure which shows the gear member 103 of another form, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the space | interval adjustment member 106, (1) is a front view, (2) It is sectional drawing. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the space | interval adjustment member 130 of another form, (1) is a front view, (2) is sectional drawing. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the other space | interval adjustment member 131, (1) is a front view, (2) is sectional drawing. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the other space | interval adjustment member 132, (1) is a front view, (2) is sectional drawing. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the other space | interval space | interval adjustment member 133, (1) is a front view, (2) is sectional drawing. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is sectional drawing which shows space | interval adjustment member 132A-132C. It is sectional drawing which shows a space | interval adjustment body. It is sectional drawing which shows another shape space | interval adjustment body. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is sectional drawing which shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is sectional drawing which decomposes | disassembles and shows the connection structure of further another form of implementation of the 1st group relevant to this invention. It is a figure which shows the other gear member 160, (1) is a front view, (2) is sectional drawing, (3) is a rear view. Furthermore, it is a figure which shows the other gear member 160, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is sectional drawing which shows the connection structure of the driving force transmission member of one Embodiment of the 2nd group of this invention. It is a figure which shows the gear member 603, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 604, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 601, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 602, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the connection member 650, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is sectional drawing which shows the connection structure of other form of implementation of this invention. It is sectional drawing which shows the connection structure of other form of implementation of this invention. It is a figure which shows the space | interval setting member 750, (1) is a front view, (2) is sectional drawing. It is sectional drawing which shows connecting member 650A-650C. It is sectional drawing which shows the connection structure of other form of implementation of this invention. It is a figure which shows the connection member 650 of another form, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is sectional drawing which shows the connection structure of other form of implementation of this invention. It is a figure which shows the space | interval setting member 751 of another form, (1) is a front view, (2) is sectional drawing. It is sectional drawing which shows the connection structure of other form of implementation of this invention. Furthermore, it is a figure which shows the space | interval setting member 752 of another form, (1) is a front view, (2) is sectional drawing. It is a figure which shows the connection structure of other form of implementation of this invention. It is a figure which shows the gear member 603 of another form, (1) is a front view, (2) is sectional drawing, (3) is sectional drawing, (4) is a rear view. It is a figure which shows the gear member 604 of another form, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the connection member 650 of another form, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 603 of another form, (1) is a front view, (2) is sectional drawing, (3) is sectional drawing, (4) is a rear view. Furthermore, it is a figure which shows the gear member 604 of another form, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is sectional drawing which shows the connection structure of other form of implementation of this invention. It is sectional drawing which decomposes | disassembles and shows each gear member 603,604 and the connection member 650. FIG. It is sectional drawing which decomposes | disassembles and shows the connection structure of other form of implementation of this invention. It is sectional drawing which shows the connection structure of other form of implementation of this invention. It is sectional drawing which shows the connection structure of other form of implementation of this invention. It is sectional drawing which shows the connection structure of other form of implementation of this invention. It is a figure which shows the gear member 685 of another form, (1) is a front view, (2) is sectional drawing, (3) is sectional drawing, (4) is a rear view. Furthermore, it is a figure which shows the gear member 686 of another form, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 690 which is a driving force transmission member of one Embodiment of the 3rd group relevant to this invention, (1) is a front view, (2) is sectional drawing, (3) Is a sectional view, and (4) is a rear view. It is a figure which shows the gear member 691, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 692, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is sectional drawing which shows the assembly body 925 with which the connection structure of the drive force transmission member of one Embodiment of 4th group relevant to this invention is implemented. It is a figure which shows the gear member 695, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which shows the gear member 696, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which expands and shows the engaging means 695f. It is a figure which expands and shows the engaging means 696f. It is a figure which expands and shows the engaging means of another form. It is a figure which expands and shows another engagement means. Furthermore, it is a figure which shows the gear member 697 of another form, (1) is a front view, (2) is sectional drawing, (3) is a rear view. Furthermore, it is a figure which shows the gear member 698 of another form, (1) is a front view, (2) is sectional drawing, (3) is a rear view. It is a figure which expands and shows the engaging means 697f and 697g. It is a figure which expands and shows the engagement means 698f and 698g. It is a perspective view which shows the driving force transmission member 1a-1c of a prior art. It is a figure which shows the composite type driving force transmission component of a prior art.

Explanation of symbols

10 Copier bodies 101 to 104, 160; 601 to 604, 690 to 693, 695 to 698 Gear members 101a to 104a; 101e to 104e; 601a to 604a, 690a to 693a Recessed engaging portions 101b to 104b; 690b to 693b Convex engaging portion 105, 120 Spacer member 106, 130 to 133 Distance adjusting member 140A to 140C Shaft diameter adjusting member 201 to 203; 701 to 703 Rotating shaft 301 to 303; 304; 660 Displacement preventing member 695f to 698f , 697 g, 698 g Engaging means 695 a to 698 a Recess 695 b to 698 b Projection

Claims (3)

A plurality of driving force transmission members in which at least one of a concave coupling portion and a convex coupling portion is formed on one side in the axial direction;
At least one of a concave connection part and a convex connection part is formed on one side in the axial direction, and at least one of a concave connection part and a convex connection part is formed on the other side in the axial direction A connecting member,
The plurality of driving force transmission members are selectively used to rotate around an axis via one or more connecting members by a concave connecting portion or a convex connecting portion of the driving force transmitting member and the connecting member. It is connected so as to be able to transmit driving force and detachable in the axial direction,
The connecting member is formed with a convex connecting portion at least on one side in the axial direction ,
At least one of the driving force transmitting members has a plurality of bottomed concave connecting portions having a different depth at one side portion in the axial direction than the projecting height of the convex connecting portion of the connecting member. Formed,
The drive force transmission member connection structure, wherein the convex connection portion of the connection member is selectively fitted into the concave connection portion of the drive force transmission member. A plurality of driving force transmission members in which at least one of a concave coupling portion and a convex coupling portion is formed on one side in the axial direction;
At least one of a concave connection part and a convex connection part is formed on one side in the axial direction, and at least one of a concave connection part and a convex connection part is formed on the other side in the axial direction A connecting member,
The plurality of driving force transmission members are selectively used to rotate around an axis via one or more connecting members by a concave connecting portion or a convex connecting portion of the driving force transmitting member and the connecting member. It is connected so as to be able to transmit driving force and detachable in the axial direction,
Each driving force transmission member has a concave connecting portion on one side in the axial direction.
A plurality of connecting members are interposed between the driving force transmitting members, and the connecting members are formed with convex connecting portions on both sides in the axial direction, and at least one side of the axial direction is provided with a convex connecting portion. A plurality of bottomed concave connecting portions having a different depth than the protruding height and having a different depth are formed.
Each connecting member connecting structure of the convex connection portion is selectively fitted into the concave coupling portion engaged are you, characterized in that it is connected to driving force transmitting member. Each drive force transmission member is formed with a fitting hole through which a rotation support member that is rotatably inserted through each drive force transmission member is inserted,
A plurality of annular shaft diameter setting members that can be fitted into the respective fitting holes of the respective driving force transmitting members and that have insertion holes with different inner diameters are selectively used to fit into the respective fitting holes. The drive force transmission member coupling structure according to claim 1 or 2 , wherein each of the drive force transmission members is rotatably supported by inserting the rotation support member through the insertion hole of the shaft diameter setting member. .

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