JP6258686B2 - Paper binding machine - Google Patents

Description

  The present invention is a handy type paper that can bind a plurality of papers, synthetic resin films, metal sheets and the like (hereinafter referred to as papers) without using a metal binding needle, glue, string, or the like. Relates to the binding machine.

  Conventionally, many booklets, forms, and the like have been created by binding with a metal binding needle or glue. However, in the case of a metal binding needle, if the binding state is incomplete, the end of the binding needle may pop out and be dangerous. In addition, when a booklet or form is no longer needed and discarded, it is cut with a shredder as necessary and then incinerated or reused as recycled paper from the viewpoint of resource conservation. In order to avoid damaging the shredder blade, it was necessary to remove the metal binding needle in the case of binding with the binding needle made of the metal. In addition, when the glue is a resin-based glue such as hot melt, toxic gas is generated during incineration, so the glue part must be cut off. These operations are time-consuming and rebound from personnel costs.

To address these problems, without using a metal needle or glue, as being capable of Tojikomu paper, for example, when Tojikomu a plurality of forms such as water on one piece of paper And a device that binds by applying pressure from above and below with a binding member in which concaves and convexes are connected is described (for example, refer to Patent Documents 1 and 2).

Japanese Patent No. 3481300 Japanese Patent No. 3502204

  However, an apparatus capable of binding paper without using a metal needle or glue disclosed in Patent Document 1 and Patent Document 2 is an apparatus incorporated in a copying machine or the like, and is large in size. Yes, no handy type paper binding machine has been proposed.

An object of the present invention is a small size capable of binding a plurality of sheets of paper without using a metal binding needle, glue, string, etc., by a pair of gears each having a plurality of teeth meshing with each other, The object is to provide a handy type paper binding machine.
Another object of the present invention is to provide a paper binding machine capable of reliably performing binding in a state in which tearing is suppressed according to the thickness, number, hardness, and softness of paper to be bound. There is.

  In order to achieve the above-mentioned object, the invention according to claim 1 has a pair of gears each having a plurality of tooth portions meshing with each other on the outer peripheral surfaces facing each other, and a plurality of sheets of paper between the pair of gears. A paper binding machine that compresses and binds the plurality of papers between the tooth portions engaged with each other by rotating the pair of gears, and the pair of gears are incorporated in parallel to the housing. The pair of rotation support shafts are positioned and fixed so that the opposing tooth portions mesh with each other, and the pair of rotation support shafts are rotatably incorporated in the housing, respectively, and one of the pair of rotation support shafts The rotation support shaft is provided with a handle for rotating the one rotation support shaft in one direction via a one-way clutch.

  The invention according to claim 2 is characterized in that the pair of rotation support shafts according to claim 1 are rotatably incorporated in the housing in a state where a predetermined load is applied to the housing. To do.

  According to a third aspect of the present invention, the other rotation support shaft of the pair of rotation support shafts according to any one of the first or second aspect is made a compressible elastic body as one rotation support shaft. It is supported in parallel so that it can move in the direction of approaching and separating, and the movement allowable range can be adjusted based on the stretchability according to the degree of tightening of the elastic body, and one of the gears fixed to the pair of rotation support shafts can be adjusted. It is characterized by comprising a compression force adjusting means adapted to adjust the compression force of the paper by the tooth portion and the tooth portion of the other gear fixed to the other rotation support shaft.

  According to a fourth aspect of the present invention, in the compression force adjusting means according to the third aspect of the present invention, female screw portions are formed at both ends of the other rotation support shaft, respectively, and The other gear is fixed so that both end portions protrude from both sides of the housing, the elastic body formed in a cylindrical shape is fitted to the outer periphery of both end portions of the rotary support shaft, and the elastic portion is fitted to the female screw portion. The elastic body is clamped between the pressing body and the housing by screwing a male screw with a pressing body in contact with the body interposed therebetween.

  According to a fifth aspect of the present invention, in the compression force adjusting means according to the third aspect, the casing is divided into upper and lower casings by dividing the casing into upper and lower bodies, and the upper casing has a female screw hole that opens to the bottom surface. The lower housing is formed with a bolt insertion hole that opens at a position corresponding to the female screw hole, the bolt is inserted from the lower surface side of the lower housing, and is screwed into the female screw hole of the upper housing. The casing and the lower casing can be fixed, the cylindrical elastic body is interposed between the bolt and the lower casing, and the pressing body is interposed between the elastic body and the head of the bolt. The elastic body is tightened between the pressing body and the lower housing by screwing the bolt into the female screw hole of the upper housing.

  According to a sixth aspect of the present invention, in the one gear fixed to the one rotation support shaft according to any one of the second to fourth aspects, a notch is formed in a part of the periphery having the tooth portion. A plane portion is formed, and a paper insertion gap is formed between the notched plane portion of the one gear and the tooth portion of the other gear.

According to a seventh aspect of the present invention, in the casing according to the sixth aspect, the gear is rotated by the handle operation, and the notched flat portion of the one gear is connected to the axis of the one gear. Gear rotation that regulates rotation of the one gear at a position parallel to the tangential direction of the other gear with the intersection of the line passing through the axis of the other gear and the outer periphery of the other gear as a contact It is characterized by having a regulation means.

According to an eighth aspect of the present invention, the gear rotation restricting means according to the seventh aspect is provided with a disk portion coaxial with the one gear and concentric with the one gear, and the outer periphery of the disk portion The disc portion that is provided with a notch groove portion at a position corresponding to the notch plane portion of one gear, the rear end portion is pivotally attached to the housing, and the tip portion rotates with the rotation of the one gear. The notched flat portion of the one gear is in contact with the intersection of the line passing through the axis of the one gear and the axis of the other gear and the outer periphery of the other gear. At a position parallel to the tangential direction of the other gear, a ratchet is provided that has a claw portion that engages with a notch groove provided on the outer periphery of the disk portion and prevents rotation of the one gear. It is characterized by.

According to a ninth aspect of the present invention, the ratchet according to the eighth aspect of the present invention has a latching portion detachably latched on the handle for rotating the one rotation support shaft in one direction on the rear side, During the operation of rotating the handle in one direction for rotating the one rotation support shaft, the locking portion is detached from the handle, and the claw portion of the ratchet is slidably contacted with the outer periphery of the disk portion. A notch plane portion of the gear is parallel to the tangential direction of the other gear with the intersection of the line passing through the axis of the one gear and the axis of the other gear and the outer periphery of the other gear as a contact. At the position where it is locked to the notch groove portion provided on the outer periphery of the disk portion, and when the handle is rotated in the other direction, the locking portion is locked to the handle and lifted, and the ratchet The nail part of the disc is provided on the outer periphery of the disk part. Characterized in that it adapted to disengage from the can groove.

According to the paper binding machine according to claim 1, the one gear fixed to the one rotation support shaft is rotated by the operation of rotating the handle in one direction, and the rotation of the one gear is performed. Accordingly, the other gear meshing with the tooth portion of the one gear rotates, and a plurality of sheets of paper are fed between the pair of rotating gears. It is compressed by the meshing of the tooth portions of the gear, and can be surely bound by the binding force generated by this compression.
The handle for rotating the one rotation support shaft is attached to the one rotation support shaft via a one-way clutch, so that even if the handle is continuously reciprocated, the one rotation The support shaft can be rotated only in one direction, and a plurality of sheets can be easily bound.
Further, since the structure is simple, compact and can be obtained filing machine handicap type paper.

  According to the paper binding machine according to claim 2, the pair of rotation support shafts are rotatably incorporated in the casing in a state where a predetermined load is applied to the rotation. The pair of built-in rotation support shafts are prevented from inadvertent rotation, and a stable meshing state can be obtained between the tooth portions of the pair of gears fixed to the pair of rotation support shafts. .

  According to the paper binding machine according to claim 3, the degree of tightening of the elastic body is adjusted by the compression force adjusting means according to the thickness, number, hardness, and softness of the paper to be bound. Then, by adjusting the compressive force of the paper by the tooth part of one gear and the tooth part of the other gear, the other gear is fixed when a strong compressive force that causes tearing is applied to the paper. The other rotational support shaft is relieved in the direction away from the one rotational support shaft that fixes the one gear according to the elasticity of the elastic body, thereby relieving the strong compressive force. Thus, the binding can be performed reliably with the tearing suppressed.

  According to the paper binding machine according to claim 4, simple fastening such as fastening with male screws respectively screwed into female screw portions formed at both end portions of the other rotation support shaft projecting on both sides of the housing. By adjusting the movement allowable range based on the elasticity depending on the tightening degree of the elastic body by the operation, the tooth portion of one gear fixed to the pair of rotation support shafts and the other gear fixed to the other rotation support shaft It is possible to adjust the compression force of the paper by the tooth portion.

  According to the paper binding machine according to claim 5, depending on the degree of tightening of the elastic body by a simple operation such as tightening with a bolt inserted from the lower surface side of the lower housing and screwed into the female screw portion of the upper housing. Compressive force of paper by adjusting the allowable movement range based on stretchability and the tooth portion of one gear fixed to the pair of rotation support shafts and the tooth portion of the other gear fixed to the other rotation support shaft Adjustments can be made.

According to the paper binding machine according to claim 6, the notched plane portion of the one gear is formed by passing a line passing through an axis of the one gear and an axis of the other gear and the other gear. A paper insertion gap is formed between the notch plane portion of the one gear and the tooth portion of the other gear by making the intersection point of the outer circumference of the other gear parallel to the tangential direction of the other gear. By inserting paper into the paper insertion gap and rotating the one gear, a part of the paper can be bound within a range where the tooth portion of the one gear is formed.

According to the paper binding machine according to claim 7, the gear rotation restriction means passes the notched flat portion of the one gear through the shaft center of the one gear and the shaft center of the other gear. A line and the tangential direction of the other gear whose contact point is the intersection of the outer circumference of the other gear can be surely parallel to each other, and paper can be easily inserted.

According to the paper binding machine according to claim 8, the notched flat portion of one of the gears rotated by the simple operation of rotating the one rotation support shaft by the handle operation is the one of the ones. Rotation of one gear at a position parallel to the tangential direction of the other gear with the intersection of the line passing through the axis of the other gear and the axis of the other gear and the outer periphery of the other gear as a contact. The notched plane portion of the one gear is a contact point at the intersection of a line passing through the axis of the one gear and the axis of the other gear and the outer periphery of the other gear. It is possible to ensure that the tangential direction of the other gear is in parallel.

  According to the paper binding machine of the ninth aspect, the prevention of the rotation of one of the gears can be released by a simple operation of rotating the handle in the other direction, and the handle is rotated in the one direction. It can be moved to rotate one of the gears, and the binding of the paper can be resumed.

It is a partially omitted right side view showing a first example of an embodiment of a paper binding machine according to the present invention. FIG. 2 is a partially omitted enlarged plan view of FIG. 1. It is AA sectional drawing of FIG. FIG. 2 is a partially omitted enlarged front view of FIG. 1. FIG. 2 is a partially omitted enlarged rear view of FIG. 1. FIG. 2 is a partially omitted enlarged right side view of FIG. 1. It is a partially omitted enlarged left side view of FIG. FIG. 2 is an enlarged perspective view of a pair of gears shown in FIG. 1. It is explanatory drawing which shows rotation operation | movement of a pair of gear of this example. It is explanatory drawing which shows rotation operation | movement of a pair of gear of this example. It is explanatory drawing which shows rotation operation | movement of a pair of gear of this example. It is a partially omitted sectional view showing a second example of the embodiment of the paper binding machine according to the present invention. It is explanatory drawing which shows the other example of a pair of gearwheel. It is explanatory drawing which shows the rotational drive mechanism of a pair of gearwheel of FIG.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of a paper binding machine according to the present invention will be described in detail with reference to the drawings.
1 to 11 show a first example of a paper binding machine according to an embodiment of the present invention. FIG. 1 is a partially omitted right side view of this example, and FIG. 2 is a part of FIG. 3 is a cross-sectional view taken along line AA in FIG. 2, FIG. 4 is a partially omitted enlarged front view of FIG. 1, FIG. 5 is a partially omitted enlarged rear view of FIG. 1, and FIG. FIG. 7 is a partially omitted enlarged left side view of FIG. 1, FIG. 8 is an enlarged perspective view of a pair of gears shown in FIG. 1, and FIGS. 9, 10, and 11 are a pair of this example. It is explanatory drawing which shows rotation operation | movement of a gearwheel.

  The paper binding machine of this example has a pair of gears 2 and 3 that are arranged facing each other vertically and have a plurality of tooth portions 1 that mesh with each other on the opposed outer peripheral surfaces, and between the upper and lower gears 2 and 3. A plurality of papers 4 are fed to each other, and the upper and lower gears 2 and 3 are rotated to compress and bind the plurality of papers 4 between the tooth portions 1 and 1 engaged with each other. The gears 2 and 3 are positioned and fixed to a pair of rotation support shafts 6 and 7 incorporated in the casing 5 in parallel in the vertical direction so that the teeth 1 and 1 facing each other mesh with each other. 7 is rotatably incorporated in the housing 5, and a handle 9 that rotates the upper rotation support shaft 6 in one direction via a one-way clutch 8 is attached to the upper rotation support shaft 6.

  More specifically, in this example, the housing 5 includes an upper housing 10 and a lower housing 11, and the upper housing 10 and the lower housing 11 are further divided into left and right, left upper housing portion 10 a and upper right side. The housing 10b is composed of a lower left housing 11a and a lower right housing 11b. The upper housing 10 and the lower housing 11 are detachably fixed by bolts 22, and the upper left housing section. 10a and the upper right side casing part 10b are fixed to the lower left side casing part 11a and the lower right side casing part 11b so as to be detachable by bolts (not shown).

  The upper left housing portion 10a and the upper right housing portion 10b are provided with insertion holes 12a and 12b through which the upper rotation support shaft 6 is rotatably inserted, and between the upper left housing portion 10a and the upper right housing portion 10b. Is formed with a space 13 for accommodating the upper gear 2 fixed in the middle of the upper rotation support shaft 6 and projecting the tooth portion 1 of the upper gear 2 from the lower surface of the upper housing 10.

  The lower left casing part 11a and the lower right casing part 11b are provided with insertion holes 14a and 14b through which the lower rotation support shaft 7 is rotatably inserted, and the lower left casing part 11a and the lower right casing part. 11b, the lower gear 3 fixed in the middle of the lower rotation support shaft 7 is accommodated, and the tooth portion 1 of the lower gear 3 protrudes from the upper surface of the lower casing 11, A space portion 15 is formed to mesh the tooth portion 1 of the lower gear 3 with the tooth portion 1 of the upper gear 2 protruding from the lower surface of the upper housing 10.

  Then, the upper rotary support shaft 6 with the upper gear 2 fixed to the upper casing 10 is assembled by forming one end side of the upper rotary support shaft 6 in the insertion hole 12a of the left upper casing portion 10a and forming the space portion 13. Inserted from the surface side, the end protrudes from the left upper housing part 10a, and the other end of the upper rotation support shaft 6 is inserted into the insertion hole 12b of the upper right housing part 10b from the surface where the space 13 is formed. The end is protruded from the upper right housing 10b and the upper left housing 10a and the upper right housing 10b are fixed with bolts.

Female screw portions 16 and 16 are formed in the axial direction at both ends of the upper rotation support shaft 6, and male screws 17 and 17 are screwed into the female screw portions 16 and 16, and tightened from both sides to tighten the upper screw portions 16 and 16. A rotation support shaft 6 is rotatably incorporated in the upper housing 10. Between the upper side of the rotation support shaft 6 and the upper left side skeleton portion between the 10a and the upper rotation shaft 6 and upper right-side building frame portion 10b, that have respective bearing 18 is interposed. A washer 19 is interposed between the side surface of the upper gear 2 and the upper left casing 10a and the upper right casing 10b.

Further, in this example, a one-way clutch 8 is attached to an end portion of the upper rotation support shaft 6 protruding from the left upper casing portion 10a, and the upper rotation support shaft 6 is attached to the one-way clutch 8 in one direction. A handle 9 to be rotated is attached, and the one-way clutch 8 to which the handle 9 is attached is screwed into a female screw portion 16 formed at an end portion of the upper rotation support shaft 6 protruding from the left upper housing portion 10a. It is attached to the end of the upper rotation support shaft 6 by the male screw 17.
In this example, when the handle 9 is rotated downward, the upper rotation support shaft 6 is rotated in one direction, and when the handle 9 is rotated upward, the one-way clutch 8 is disengaged.

  Between the one-way clutch 8 and the left upper housing part 10a, a brake part 20 that applies a predetermined load to the rotation of the upper rotation support shaft 6 is interposed. In this example, a urethane resin is used as the brake unit 20 to apply a load due to frictional resistance to the rotation of the upper rotation support shaft 6. The load by the brake unit 20 is set to a load that prevents free rotation of the upper rotation support shaft 6 and does not hinder rotation by operation of the handle 9.

  In this example, a spring 21 that biases the handle 9 so as to rotate upward is interposed between the upper left casing 10a and the handle 9.

  In addition, the lower rotation support shaft 7 with the lower gear 3 fixed to the lower housing 11 is assembled by inserting one end side of the lower rotation support shaft 7 into the insertion hole 14a of the lower left housing portion 11a. The portion 15 is inserted from the forming surface side, the end portion is protruded from the lower left housing portion 11a, and the other end of the lower rotation support shaft 7 is inserted into the insertion hole 14b of the lower right housing portion 11b. 15 is inserted from the forming surface side, the end is protruded from the lower right side casing part 11b, and the lower left side casing part 11a and the lower right side casing part 11b are fixed with bolts.

Female screw portions 23, 23 are formed in the axial direction at both ends of the lower rotation support shaft 7, respectively. The male screws 24, 24 are screwed into the female screw portions 23, 23 and tightened from both sides. The rotation support shaft 7 on the side is incorporated in the lower housing 11 so as to be rotatable. Between the one side surface and the lower left side skeleton portion 11a of the lower gear 3 washer 25 is interposed. Further, a brake portion 26 that applies a predetermined load to the rotation of the lower rotation support shaft 7 is interposed between the other side surface of the lower gear 3 and the lower right housing portion 11b. In this example, a urethane resin is used as the brake portion 26, which gives a load due to frictional resistance to the rotation of the lower rotation support shaft 7. The load by the brake unit 26 is set to a load that prevents free rotation of the lower upper rotation support shaft 7 and does not hinder rotation associated with rotation of the upper gear 2.

  Thus, between the upper housing 10 incorporating the upper rotation support shaft 6 to which the upper gear 2 is fixed and the lower housing 11 incorporating the lower rotation support shaft 7 to which the lower gear 3 is fixed. Is formed with a gap S through which a plurality of sheets 4 are fed between the upper gear 2 and the lower gear 3.

Further, in this example, the papers 4 by the tooth portion 1 of the upper gear 2 fixed to the upper rotation support shaft 6 and the tooth portion 1 of the lower gear 3 fixed to the lower rotation support shaft 7 are used. The compression force adjusting means 27 is provided so that the compression force can be adjusted.
In this example, the compression force adjusting means 27 includes the insertion hole 14a of the lower left housing part 11a and the insertion hole 14b of the lower right housing part 11b which are inserted through both ends of the lower rotation support shaft 7, and the lower rotation support shaft. The elastic bodies 28 and 28 formed into a cylindrical shape are fitted to the outer periphery of each end of the lower rotation support shaft 7 projecting from the lower left casing portion 11a and the lower right casing portion 11b. Then, male screws 24 and 24 are provided at both ends of the lower rotation support shaft 7 by interposing pressing members 29 and 29 abutting against the elastic bodies 28 and 28 on female screw portions 23 and 23 formed in the axial direction, respectively. The elastic bodies 28, 28 are tightened between the pressing bodies 29, 29 and the lower left casing section 11a and the lower right casing section 11b by screwing. As the elastic bodies 28, 28, urethane resin is used in this example.

  Further, in the upper gear 2 fixed to the upper rotation support shaft 6 and the lower gear 3 fixed to the lower rotation support shaft 7 used in this example, for example, Japanese Patent No. 5361858. The gear disclosed in the above can be used, but is not particularly limited.

  Further, in this example, the upper gear 2 of the gears 2 and 3 is formed with a notch plane portion 30 in a part of the periphery having the tooth portion 1, and the notch plane portion of the upper gear 2 is formed. A paper insertion gap 31 is formed between the gear 30 and the tooth portion 1 of the lower gear 3. The interval between the paper insertion gaps 31 is set such that a plurality of stacked papers 4 can be inserted. In this example, the notch plane part 30 parallel to the direction orthogonal to a 180 degree direction is formed in the 180 degree direction both sides of the circumference | surroundings which have the tooth | gear part 1 of the upper gearwheel 2.

Further, in this example, the gears 2 and 3 are rotated by operating the handle 9 in the housing 1, and the notch plane portion 30 of the upper gear 2 is connected to the axis of the upper gear 2 and the axis of the lower gear 3. A gear rotation restricting means 32 for restricting the rotation of the upper gear 2 at a position parallel to the tangential direction of the lower gear 3 with the intersection of the line passing through the center and the outer periphery of the lower gear 3 as a contact ; I have.
The gear rotation restricting means 32 in this example is provided with a disk portion 33 coaxial with the upper gear 2 and concentric with the gear 2 integrally with the gear 2, and corresponds to the notched flat portion 30 of the gear 2 on the outer periphery of the disk portion 33. A notch groove 34 is provided at a position where the left upper housing portion 10a is located in the space 13 formed between the left upper housing portion 10a and the upper right housing portion 10b, and a claw portion 35 is provided at the tip portion. A rear end portion of the ratchet 36 having a shaft is pivotally mounted in the same direction as the rotation direction of the handle 9, and the outer periphery of the disc portion 33 that rotates the claw portion 35 at the front end portion with the rotation of the upper gear 2. The notch plane portion 30 of the upper gear 2 has a contact point at the intersection of the line passing through the axis of the upper gear 2 and the axis of the lower gear 3 and the outer periphery of the lower gear 3. in a position parallel to the tangential direction of the lower gear 3, the outer circumference of the claw portion 35 is disk unit 33 Engaged in the notch groove 34 provided, and configured to prevent rotation of the upper gear 32.

Further, in this example, the ratchet 36 has a locking portion 37 that can be locked and detached from the handle 9 that rotates the upper rotation support shaft 6 in one direction on the rear side, and the handle 9 is rotated downward to move the upper side. When the rotation support shaft 6 is rotated, the locking portion 37 is disengaged from the handle 9 with a delay in the downward rotation of the handle 9, and the ratchet 36 is rotated in the same direction as the handle 9 by its own weight. The claw portion 35 is slidably contacted with the outer periphery of the disk portion 33, and the notch plane portion 30 of the upper gear 2 passes through the axis passing through the axis of the upper gear 2 and the axis of the lower gear 3 and the lower side At the position parallel to the tangential direction of the lower gear 3 with the intersection of the outer periphery of the gear 3 as a contact , the handle 9 is locked to the notch groove 34 provided on the outer periphery of the disk portion 33 and the handle 9 is rotated upward. When this happens, the locking portion 37 is locked to the handle 9 and lifted. 9 and rotated in the same direction, the claw portion 35 of the ratchet 36 is turned as out of the notch groove 34 provided on the outer periphery of the disk portion 33.
In this example, a base plate 38 is attached to the lower surface of the lower casing 1.

  According to the paper binding machine of this example configured as described above, when the handle 9 is rotated, the upper gear 2 fixed to the upper rotation support shaft 6 is rotated by the rotation of the upper rotation support shaft 6. As the upper gear 2 rotates, the lower gear 3 that meshes with the teeth 1 of the upper gear 2 rotates. By feeding a plurality of papers 4 between the rotating gear 2 and the gear 3 in this way, the plurality of papers 4 are compressed by the meshing of the tooth portions 1 and 1 of the gear 2 and the gear 3, It is bound by the binding force generated by this compression.

  In the present example, a brake portion 20 that applies a predetermined load to the rotation of the upper rotation support shaft 6 is interposed between the one-way clutch 8 and the upper left housing portion 10a, and the other side surface of the lower gear 3 is interposed. And the lower right housing part 11b are provided with a brake part 26 for applying a predetermined load to the rotation of the lower rotation support shaft 7, so that the upper rotation support shaft is supported by the brake parts 20, 26. 6 and the lower rotation support shaft 7 are prevented from being rotated inadvertently, and between the gear 2 fixed to the upper rotation support shaft 6 and the lower rotation support shaft 7 and the teeth 1 and 1 of the gear 3. A stable meshing state can be obtained.

Further, in this example, the insertion hole 14a of the lower left casing part 11a and the insertion hole 14b of the lower right casing part 11b that are inserted through both ends of the lower rotation support shaft 7 are larger than the lower rotation support shaft 7. The elastic bodies 28, 28 formed in a cylindrical shape are fitted to the outer periphery of each end portion of the lower rotation support shaft 7 protruding from the lower left casing portion 11a and the lower right casing portion 11b, The male screws 24 and 24 are screwed into the both ends of the rotary support shaft 7 with the pressing members 29 and 29 contacting the elastic bodies 28 and 28 interposed between the female screw portions 23 and 23 formed in the axial direction, respectively. Accordingly, the pressure adjusting means 27 is configured to tighten the elastic bodies 28, 28 between the pressing bodies 29, 29 and the lower left casing portion 11a and the lower right casing portion 11b. The class 4 was compressed by the meshing of the tooth portions 1 and 1 of the gear 2 and the gear 3. When the compression force is larger than the elastic force of the elastic bodies 28, 28, the elastic bodies 28, 28 are compressed, and the lower rotary support shaft 7 moves away from the upper rotary support shaft 6, and the gear 2 The compressive force of the paper 4 by the tooth portions 1 and 1 of the gear 3 is relieved, and an excessive compressive force is not applied to the paper 4 so that the binding can be performed with the tearing suppressed.
The elasticity of the elastic bodies 28, 28 can be easily achieved by tightening the elastic bodies 28, 28 between the pressing bodies 29, 29 and the lower left casing section 11a and the lower right casing section 11b with male screws 24, 24. It can be adjusted according to the thickness, number of sheets, hardness, and softness of the papers 4.

Further, in this example, of the gears 2 and 3, the upper gear 2 is formed with notched flat portions 30 parallel to the direction orthogonal to the 180 degree direction on both sides of the 180 degree direction. Since the paper insertion gap 31 is formed between the notch plane portion 30 of the second gear 2 and the tooth portion 1 of the lower gear 3, the notch plane portion 30 of the upper gear 2 is By making the line passing through the axis of the gear 2 and the axis of the lower gear 3 and the intersection of the outer periphery of the lower gear 3 parallel to the tangential direction of the lower gear 3 with the contact point as the contact point , By inserting the papers 4 into the paper insertion gap 31 formed between the notch plane part 30 of the gear 2 and the tooth part 1 of the lower gear 3, and rotating the gears 2 and 3, A part of the paper 4 can be bound within a range where the tooth portion 1 of the gear 2 is formed.

Further, in this example, a disk portion 33 coaxial with the upper gear 2 and concentric with the gear 2 is provided integrally with the gear 2, and is cut at a position corresponding to the notch plane portion 30 of the gear 2 on the outer periphery of the disk portion 33. A notch groove 34 is provided, and a ratchet 36 having a claw portion 35 at the tip is located in the space 13 formed between the left upper housing 10a and the upper right housing 10b in the upper left housing 10a. The rear end is pivotally mounted in the same direction as the handle 9 so that the claw 35 provided at the tip is slidably contacted with the outer periphery of the disk 33 rotating with the rotation of the upper gear 2. The notch plane portion 30 of the upper gear 2 has a lower side with the intersection of the line passing through the axis of the upper gear 2 and the axis of the lower gear 3 and the outer periphery of the lower gear 3 as a contact. The notch groove part which the claw part 35 provided in the outer periphery of the disk part 33 in the position parallel to the tangential direction of the gearwheel 3 Since the gear rotation restricting means 32 configured to be locked and prevent the upper gear 32 from rotating is provided, the upper rotation support shaft 6 is rotated by operating the handle 9 to rotate the upper gear 2 that rotates. The notch plane portion 30 has a tangential direction of the lower gear 3 with the intersection of the line passing through the axis of the upper gear 2 and the axis of the lower gear 3 and the outer periphery of the lower gear 3 as a contact point. The rotation of the upper gear 2 can be prevented at the parallel position, and passes through the notch plane portion 30 of the upper gear 2 through the axis of the upper gear 2 and the axis of the lower gear 3. It is possible to be surely parallel to the tangential direction of the lower gear 3 with the intersection of the line and the outer periphery of the lower gear 3 as a contact .

Further, in this example, the ratchet 36 has a locking portion 37 that can be locked to and detached from the handle 9 that rotates the upper rotation support shaft 6 in one direction on the rear side. When the rotation support shaft 6 is rotated, the locking portion 37 is detached from the handle 9, the ratchet 36 is rotated in the same direction as the handle 9 by its own weight, and the claw portion 35 provided at the tip portion is the outer periphery of the disk portion 33. The notch plane portion 30 of the upper gear 2 is in contact with the intersection of the line passing through the axis of the upper gear 2 and the axis of the lower gear 3 and the outer periphery of the lower gear 3. When the handle 9 is pivoted upward by engaging with a notch groove 34 provided on the outer periphery of the disk portion 33 at a position parallel to the tangential direction of the lower gear 3, the latch 37 is attached to the handle 9. Locked and lifted and rotated in the same direction as the handle 9, the ratchet 36 Since the claw portion 35 is adapted to disengage from the notch groove 34 provided on the outer periphery of the disk portion 33, by turning the handle 9 upwards, the upper blocking the rotation of the gear 2 is released.

In this example, as described above, the brake units 20 and 26 prevent the upper rotation support shaft 6 and the lower rotation support shaft 7 from being inadvertently rotated. Even if the blocking is released, the upper rotation support shaft 6 and the lower rotation support shaft 7 can be prevented from rotating, the cut-out plane portion 30 of the upper gear 2, the axis of the upper gear 2, and the lower gear. 3 and the tangential direction of the lower gear 3 with the intersection point of the outer periphery of the lower gear 3 as a contact can be maintained.

FIG. 12 is a partially omitted sectional view showing a second example of the embodiment of the paper binding machine according to the present invention.
The paper binding machine of this example has the same basic configuration as that of the first example described above. In FIG. 12, the same reference numerals are given to the portions corresponding to those of the first example described above, and the description thereof is omitted. .
In the paper binding machine of this example, as in the first example described above, the housing 5 is composed of an upper housing 10 and a lower housing 11, and the upper rotation support with the upper gear 2 fixed to the upper housing 10. A shaft 6 is incorporated, and a lower rotation support shaft 7 to which the lower gear 3 is fixed is incorporated in the lower housing 11.

  The only difference between this example and the first example is the compression force adjusting means 27. In the compression force adjusting means 27 in this example, the upper housing 10 is formed with a female screw hole 39 that opens to the bottom surface, and the lower housing 11 is formed with a bolt insertion hole 40 that opens at a position corresponding to the female screw hole 39. The upper casing 10 and the lower casing 11 can be fixed by inserting the bolt 41 from the lower surface side of the lower casing 11 and screwing into the female screw hole 39 of the upper casing 10. A cylindrical elastic body 42 is interposed between the elastic body 42 and the pressing body 43 between the bolt 41 and the bolt 41 is screwed into the female screw hole 39 of the upper housing 10. Thus, the elastic body 42 is tightened between the pressing body 43 and the lower housing 11. As the elastic body 42, urethane resin is used in this example.

In this example, when the plurality of papers 4 are compressed by meshing the gears 2 and 3 with the tooth portions 1 and 1, when the compression force is greater than the elastic force of the elastic body 42, the elastic body 42 is compressed. The side housing 11 moves away from the upper housing 10, and accordingly, the lower rotation support shaft 7 is separated from the upper rotation support shaft 6, and the paper by the gear portions 2 and 1 of the gear 3 and the tooth portions 1, 1. As a result, the compression force of the type 4 is relieved, and an excessive compression force is not applied to the paper type 4, so that the binding can be performed with the tearing suppressed.
The elasticity of the elastic body 42 can be easily adjusted by tightening the elastic body 42 between the pressing body 43 and the lower housing 11 with the bolt 41, and the thickness, number, and hardness of the paper 4 can be adjusted. It can be adjusted according to the softness.

FIG. 13 shows another example of the pair of gears 2 and 3 used in the first and second examples described above.
The pair of gears 2 and 3 shown in FIG. 13 are formed with notch plane portions 30 parallel to the direction orthogonal to the 180 ° direction on both sides of the 180 ° direction, and the notch plane portion of the upper gear 2. Kamirui insertion gap 31 is in earthenware pots by being formed between the 30 and the cutout flat portion 30 of the lower gear 3.

  In the gears 2 and 3 configured as described above, when the notched flat portions 30 face each other, the rotation of the upper gear 2 cannot be transmitted to the lower gear 3, so that as shown in FIG. The rotation transmission gears 44 and 44 are provided on the upper rotation support shaft 6 to which the upper gear 2 is fixed and the lower rotation support shaft 7 to which the lower gear 3 is fixed.

  Note that the upper gear 2 and the lower gear 3 shown in the above-described embodiment are formed with notched flat portions 30 on the upper gear 2 or both the upper gear 2 and the lower gear 3. A gear without the notched flat portion 30 may be used. In the case of such a gear, continuous binding can be performed from one side of the paper 4 to the other side.

DESCRIPTION OF SYMBOLS 1 Tooth | gear part 2, 3 Gear 4 Papers 5 Housings 6, 7 Rotation support shaft 8 One-way clutch 9 Handle 10 Upper housing 10a Left upper housing 10b Upper right housing 11 Lower housing 11a Left lower housing 11b Right lower housing Part 12a, 12b Insertion hole 13 Space part 14a, 14b Insertion hole 15 Space part 16 Female thread part 17 Male thread 18 Bearing 19 Washer 20 Brake part 21 Spring 22 Bolt 23 Female thread part 24 Male thread 25 Washer 26 Brake part 27 Compression force adjusting means 28 Elasticity Body 29 Pressing body 30 Notch plane portion 31 Paper insertion gap 32 Gear rotation restricting means 33 Disk portion 34 Notch groove portion 35 Claw portion 36 Ratchet 37 Locking portion 38 Base plate 39 Female screw hole 40 Bolt insertion hole 41 Bolt 42 Elastic body 43 Pressing body 44 Rotation transmission gear S Gap

Claims (9)

A pair of gears each having a plurality of gears meshing with each other on the outer peripheral surfaces facing each other, a plurality of papers being fed between the pair of gears, and the gears meshed by rotating the pair of gears A paper binding machine that compresses and binds the plurality of sheets of paper and metal sheets,
The pair of gears are positioned and fixed to a pair of rotation support shafts that are incorporated in parallel to the housing so that opposing tooth portions mesh with each other, and the pair of rotation support shafts are incorporated in the housing so as to be rotatable, A paper binding machine, wherein a handle for rotating the one rotation support shaft in one direction via a one-way clutch is attached to one rotation support shaft of the pair of rotation support shafts. The pair of rotary support shafts for the skeleton, a binding machine paper according to claim 1, characterized in that it is rotatably integrated to each state in which a predetermined load to the rotation has been applied.   The other rotation support shaft of the pair of rotation support shafts is supported by a compressible elastic body so as to be movable in the direction of approaching and separating parallel to the one rotation support shaft, and depending on the degree of tightening of the elastic body Paper that includes a tooth portion of one gear fixed to the pair of rotation support shafts and a tooth portion of the other gear fixed to the other rotation support shaft so that the movement allowable range can be adjusted based on stretchability. The paper binding device according to claim 1, further comprising a compression force adjusting unit configured to adjust the compression force of the paper.   The compression force adjusting means is formed with female thread portions at both ends of the other rotation support shaft, respectively, and the other gear is fixed in the middle of the other rotation support shaft, and both ends thereof are framed. The elastic body formed in a cylindrical shape is fitted to the outer periphery of both ends of the rotation support shaft, and a male screw is screwed in via a pressing body that contacts the elastic body. The paper binding machine according to claim 3, wherein the elastic body is tightened between the pressing body and the housing.   The compression force adjusting means divides the housing vertically into an upper housing and a lower housing, the upper housing is formed with a female screw hole that opens to the bottom surface, and the lower housing is opened at a position that matches the female screw hole. A bolt insertion hole is formed, the bolt is inserted from the lower surface side of the lower casing, and is screwed into the female screw hole of the upper casing, so that the upper casing and the lower casing can be fixed. By interposing the elastic body formed in a cylindrical shape between the elastic body and the pressing body between the elastic body and the head of the bolt, and screwing the bolt into the female screw hole of the upper housing, The paper binding machine according to claim 3, wherein the elastic body is clamped between the pressing body and the lower casing.   The one gear fixed to the one rotation support shaft is formed with a notch plane portion in a part of the periphery having the tooth portion, and the notch plane portion of the one gear and the tooth portion of the other gear. 5. A paper binding machine according to claim 2, wherein a paper insertion gap is formed between the paper binding machine and the paper binding machine. In the housing, the gear is rotated by the handle operation, and a notch plane portion of the one gear is connected to a line passing through the axis of the one gear and the axis of the other gear and the other gear. 7. A gear rotation restricting means for restricting the rotation of the one gear at a position parallel to the tangential direction of the other gear with the intersection of the outer circumferences as contact points. Paper binding machine. The gear rotation restricting means is provided with a disk part coaxial with the one gear and concentric with the one gear, and a notch groove part at a position corresponding to a notch flat part of the one gear on the outer periphery of the disk part. A rear end portion is pivotally attached to the housing, and a front end portion is slidably contacted with an outer periphery of the disk portion rotating with the rotation of the one gear, and a notch plane portion of the one gear is provided. The disk at a position parallel to the tangential direction of the other gear with the intersection of the line passing through the axis of the one gear and the axis of the other gear and the outer periphery of the other gear as a contact. 8. The paper according to claim 7, wherein a ratchet is provided that has a claw portion that is locked in a notch groove portion provided on an outer periphery of the portion and prevents rotation of the one gear. Binding machine. The ratchet has a locking portion that can be locked to and detached from the handle that rotates the one rotation support shaft in one direction on the rear side, and rotates the handle in one direction that rotates the one rotation support shaft. At the time of the moving operation, the locking portion is detached from the handle, the ratchet pawl portion is in sliding contact with the outer periphery of the disc portion, and the notched flat portion of the one gear is in contact with the shaft center of the one gear. A notch groove portion provided on the outer periphery of the disc portion at a position parallel to the tangential direction of the other gear with the intersection point of the line passing through the axis of the other gear and the outer periphery of the other gear as a contact. When the operation of rotating the handle in the other direction is performed, the locking portion is locked to the handle and lifted, and the claw portion of the ratchet is removed from the notch groove portion provided on the outer periphery of the disk portion. It is special that it comes off Bind-machine paper according to claim 8,.

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