JP6561538B2 - Conveying apparatus and image recording apparatus - Google Patents

Description

  The present invention relates to a conveyance device that conveys a sheet and an image recording apparatus including the conveyance device.

  For example, when a paper jam occurs in the image recording apparatus, the user performs processing (hereinafter referred to as jam processing) to remove the recording paper jammed in the paper conveyance path. However, when the jammed paper is jammed between the recording papers that have been jammed by a pair of conveying rollers for conveying the recording papers, it is difficult to remove the recording papers. In particular, in order to increase the conveyance accuracy of the recording paper by the conveyance roller pair, when the force (nip load) for clamping the paper by the conveyance roller pair is increased, for example, when the paper is pulled out from the conveyance roller pair, It can be considered that the broken pieces are mixed into the apparatus and difficult to remove from the apparatus.

  In order to eliminate the above inconvenience, a nip releasing mechanism is provided that automatically releases the nip state in which the rollers of the pair of conveying rollers are in contact with each other and pinch the paper when the paper feed tray is pulled out from the apparatus main body. An image recording apparatus is known (see Patent Documents 1 and 2). As a result, the user can release the nip state of the pair of conveying rollers simply by pulling out the paper feed tray from the apparatus main body, and the recording paper causing the paper jam can be removed, for example, the opening of the apparatus main body in which the paper feed tray is mounted. Can be easily removed through the part. In addition, the conventional image recording apparatus includes a nip returning mechanism that automatically returns the pair of transport rollers released from the nip state to the nip state when the paper feed tray is mounted on the apparatus body after the jam processing is completed, for example. Also have.

JP-A-7-277552 JP-A-7-33268

  As described above, the conventional image recording apparatus has a nip release mechanism that automatically releases the nip state of the conveying roller pair by pulling out the paper feed tray from the recording apparatus and puts the conveying roller pair in a released state separated from each other. have. At this time, the nip state of the conveying roller pair is released by receiving the urging force of the urging member that urges one roller of the conveying roller pair toward the other roller by the release member that is interlocked with the movement of the tray. Is done.

  However, in the conventional recording apparatus, the release member that receives the urging force is in contact with the tray in a state where the tray is mounted on the recording apparatus, and the urging force is applied to the tray via the release member. Yes. As a result, the one roller is positioned with reference to the tray. Therefore, unless the positioning accuracy between the release member and the tray, the mounting accuracy of the tray with respect to the apparatus main body, and the like are high, it may be difficult to ensure sufficient conveyance accuracy of the sheet by the conveyance roller pair.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide a conveyance means for nipping and conveying a sheet by inserting and removing a tray, and a nip state in which the sheet can be nipped and a sheet cannot be nipped. It is an object of the present invention to provide a conveying apparatus that can be switched between a nip release state and that can suppress a decrease in sheet conveying accuracy by the conveying means, and an image recording apparatus including the conveying apparatus.

  (1) A transport device according to an embodiment of the present invention is configured to hold a transport roller, a sandwiching member that is disposed to face the transport roller and can sandwich a sheet between the transport roller, and the sandwiching member The holding member is movable to a contact position where the holding member comes into contact with the conveying roller, a separating position where the holding member is separated from the conveying roller, and the holding member is moved toward the contacting position. A first urging member that urges the holding member, and a contact surface that can contact the holding member, the first urging member intersecting a first urging direction that urges the holding member. A moving member that is movable along a crossing direction and that maintains the holding member at the separated position against the urging force of the first urging member in a state where the abutting surface is in contact with the holding member; The moving member is in a second position where the abutting surface comes into contact with the holding member. A first support portion that movably supports the contact surface to a first position where the contact surface does not contact the holding member; and a first support portion that movably supports the holding member between the contact position and the separation position. A tray that can support the sheet and can be attached to and pulled out from the apparatus along the intersecting direction. A process of moving the tray from a mounting position corresponding to a state in which the tray is mounted to the apparatus to a pulling position corresponding to a state in which the tray is pulled out from the apparatus; and In the process of moving from the position to the mounting position, a contact member whose state changes by contacting the tray is provided, and the moving member is moved to the first position and the first position in conjunction with the state change of the contact member. To position 2 A first interlocking mechanism to be moved.

  According to the above configuration, in a state where the tray is mounted on the apparatus, the moving member is in the first position, the holding member is in the contact position, and the holding member is in contact with the transport roller. The conveying means constituted by the clamping member is in a nip state in which the sheet can be clamped and conveyed. At this time, the moving member is supported by the first support portion at the first position, the holding member is supported by the second support portion at the contact position, and the first biasing member biases the holding member to the contact position. And is supported by the third support portion. Therefore, it is not necessary to position the clamping member with reference to the tray, and the positioning accuracy of the clamping member can be made dependent on the dimensional accuracy and position accuracy of the first support portion, the second support portion, and the third support portion. Therefore, even when the mounting accuracy of the tray with respect to the apparatus main body and the positioning accuracy between the release member and the tray that are normally used for releasing the nip state of the conveying means are not high, the positioning accuracy of the clamping member should be increased. Can do. As a result, it becomes easy to ensure sufficient conveyance accuracy by the conveyance unit, and a decrease in sheet conveyance accuracy by the conveyance unit can be suppressed.

  Further, according to the above configuration, the state of the abutting member changes when the abutting member comes into contact with the tray during the process of moving the tray from the mounting position to the drawing position, and the moving member is moved in conjunction with the change in the state. Move to 2 position. As a result, the contact surface of the moving member comes into contact with the holding member, the holding member moves to the separation position, the nipping member is separated from the conveying roller, and the nip state is released, and the conveying means does not clamp the sheet. Released state. Here, the drawing position is, for example, the position of the tray that facilitates execution of processing (sheet replenishment or the like) related to the sheet supported by the tray, or the position of the tray that is pulled out to the maximum until it comes into contact with a stopper, Alternatively, it can be defined as the position of the tray with the tray pulled out from the apparatus main body.

  Further, according to the above configuration, the state of the abutting member changes when the abutting member comes into contact with the tray during the process of moving the tray from the pulling position to the mounting position. Move to 1 position. As a result, the contact surface of the moving member is not in contact with the holding member, and the holding member is moved to the contact position by the urging force of the first urging member, so that the conveying roller and the clamping member are in contact with each other. The conveying means returns to the nip state.

  As described above, for example, in the image recording apparatus, when a paper jam occurs in which the recording paper is jammed in the conveyance path or the like, the conveyance roller and the driven roller (hereinafter referred to as a sandwiching member) (hereinafter referred to as the nipping member) are simply performed by pulling out the tray from the apparatus. The nip state such as the two rollers is also referred to as a conveyance roller pair) is released. Thereby, the recording paper causing the paper jam can be easily removed from between the pair of conveying rollers, and the jam processing can be easily performed. Furthermore, the conveyance roller pair returns to the nip state only by performing an operation of mounting the tray on the apparatus, and the recording sheet can be conveyed by the conveyance roller pair. As described above, the operation of the image recording apparatus can be simplified. In addition, since it is not necessary to bring the abutting member into contact with the tray in a state where the tray is mounted on the apparatus, it is easy to suppress a decrease in the recording paper conveyance accuracy by the conveying unit.

  The sandwiching member is not limited to the driven roller, and may be a pressing member having a pressing surface with a sufficiently small friction coefficient that presses the sheet toward the conveying roller. The contact surface of the moving member is preferably parallel to the direction in which the moving member can move (the crossing direction). Thereby, when a contact surface and a holding member contact | abut, it can prevent that a moving member moves by the urging | biasing force of a 1st urging | biasing member.

  (2) Preferably, in the transport device, the contact member extends in a mounting direction when the tray is mounted on the device and a direction intersecting a pulling direction when the tray is pulled out from the device. The first state, the second state rotated from the first state by the angle θ1 of less than 180 ° in the first rotation direction around the rotation axis, and the first state. From the first state, it is possible to take a third state that is rotated by an angle θ2 of less than 180 ° in a second rotation direction opposite to the first rotation direction around the rotation axis. A lever member located in the first state, wherein the first interlocking mechanism is provided on the tray so as to be able to contact the lever member located in the first state, and the tray is moved from the mounting position to the withdrawal position. When moving the lever member A lever abutting portion that rotates from the first state to the second state and rotates the lever member from the first state to the third state when the tray moves from the pull-out position to the mounting position. And the lever member is moved from the first state to the second state to move the moving member to the second position, and the lever member is rotated from the first state to the third state. And a second interlocking mechanism for moving the moving member to the first position.

  According to the above configuration, when the tray moves from the loading position to the drawing position, the lever contact portion provided on the tray contacts the lever member, and the lever member rotates from the first state to the second state. It is rotated in the direction. The moving member is moved to the second position by the rotation of the lever member, and the contact surface of the moving member comes into contact with the holding member. As a result, the holding member is moved to the separation position, the conveyance roller and the clamping member are separated from each other, the nip state is released, and the conveyance unit is in the release state.

  On the other hand, when the tray moves from the drawer position to the mounting position, the lever contact portion provided on the tray contacts the lever member, and the lever member rotates from the first state to the third posture in the second rotation direction. Moved. The moving member is moved to the first position by the rotation of the lever member, and the holding member is brought into a non-contact state in which it does not contact the contact surface of the moving member. As a result, the holding member can move toward the transport roller, and is moved to the contact position by the biasing force of the first biasing member. As a result, the clamping member is brought into contact with the conveying roller, and the conveying means returns to the nip state.

  As described above, the lever member is rotated in the first rotation direction and the opposite second rotation direction by the movement of the tray, and only moves the moving member to the second position and the first position. It has only a function and does not receive the urging force of the first urging member in a state where the tray is mounted on the apparatus. Therefore, in a state where the tray is mounted on the apparatus, the urging force of the first urging member is not applied to the tray via the lever member, and the clamping member is not positioned with reference to the tray. Therefore, it becomes easy to ensure sufficient conveyance accuracy of the sheet.

  (3) Preferably, in the transport device, the first interlocking mechanism further includes a second urging member that urges the lever member to the first state.

  According to the above configuration, in a state where the lever member is not in contact with other members such as a tray, the lever member can be always positioned in the first state as the specified position. Therefore, the lever contact portion can be reliably brought into contact with the lever member in the process of moving the tray between the mounting position and the drawing position. As a result, it is possible to reliably switch between the nip state and the release state of the conveying means in conjunction with the insertion and removal of the tray. The lever member can be positioned in the first state by its own weight.

  (4) Preferably, in the transport device, the second interlocking mechanism is provided on the moving member, and is disposed so as to be able to contact the lever member rotating from the first state to the second state. The first contact part that moves the moving member to the second position by the rotation of the lever member and the moving member are provided and rotated from the first state to the third state. And a second abutting portion that moves the moving member to the first position by rotation of the lever member.

  According to the above-described configuration, the moving mechanism moves the moving member to the second position and the first position in conjunction with the rotation of the lever member only by providing the moving member with, for example, two rod-shaped or protruding contact portions. Can be configured. Therefore, the second interlocking mechanism can have a simple structure, and manufacture of the transport device can be facilitated.

  (5) Preferably, in the transport device, the first contact portion contacts the lever member in the first state in a state where the moving member is in the first position, and the second contact portion is The moving member contacts the lever member in the first state when the moving member is in the second position.

  According to the above configuration, the lever member can be positioned in the first state by the first contact portion and the second contact portion in both the state where the moving member is in the second position and the state where the movable member is in the first position. it can. Therefore, in the process of moving the tray between the mounting position and the drawing position, the lever abutting portion can be surely brought into contact with the lever member, and the nip state of the conveying means is linked with the insertion and removal of the tray. The release state can be switched reliably.

  (6) Preferably, the transport device further includes a first frame provided with the first support portion, the second support portion, and the third support portion.

  According to the said structure, the positional relationship of a holding member, a moving member, and a 1st biasing member can be prescribed | regulated, for example with a metal 1st flame | frame. Therefore, it becomes easy to accurately position the clamping member at the contact position. Thereby, it becomes easy to ensure sufficient conveyance accuracy of the sheet by the conveyance means.

  (7) Preferably, the transport device is further supported by the first frame, and further includes a second frame that supports the rotating shaft.

  According to the said structure, the positional relationship of a holding member, a moving member, a 1st biasing member, and a lever member can be prescribed | regulated by the metal 1st frame and 2nd frame, for example. Therefore, the moving member can be reliably moved to the second position and the first position in conjunction with the rotation of the lever member. Of course, the first frame and the second frame can be integrated. However, by making the first frame and the second frame separate, the degree of freedom in designing the transport device is increased, and the manufacture of the transport device can be facilitated.

  (8) Preferably, in the transport device, the tray and the lever contact portion are not in contact with the lever member in a state where the tray is mounted on the device.

  According to the above configuration, since the lever member is not in contact with the tray and the lever contact portion while the tray is mounted on the apparatus, the biasing force of the first biasing member is applied to the lever member for some reason. Even in this case, the biasing force is not applied to the tray via the lever member. Therefore, even in such a case, the clamping member is not positioned with reference to the tray, and the sheet conveying accuracy by the conveying unit is prevented from being lowered.

  (9) Preferably, in the transport device, the contact member attaches the tray to the device in conjunction with the movement of the moving member to the first position and the movement to the second position. In the first direction intersecting with the mounting direction and the pull-out direction and in the second direction opposite to the mounting direction and connected to the moving member so as to be movable in the pull-out direction when pulling out the tray from the apparatus. A movable sliding member, wherein the first interlocking mechanism is provided on the tray, and engages with the sliding member when the tray moves from the mounting position to the pulling position. When the tray is moved, the moving member is moved to the second position, and when the tray moves from the pulling position to the mounting position, the moving member is engaged with the sliding member, and the moving of the tray moves the moving member. the above The engagement portion to be moved to one position, the sliding member, the third position at which the moving member is located at the second position, and the fourth position at which the moving member is located at the first position. A fifth position where the sliding member is movably supported along the direction and the pull-out direction and can be engaged with the engaging portion, and is separated from the tray in the first direction from the fifth position. And a fourth support portion that is movably supported along the first direction and the second direction at a sixth position where the engagement portion cannot be engaged with the engagement portion, and the sliding member in the second direction. A third urging member for urging.

  According to the above configuration, when the tray moves from the mounting position to the drawing position, the sliding member is moved to the third position by the engagement with the engaging portion, and the moving member is moved to the second position. As a result, the nip state is released from the conveying means including the conveying roller and the clamping member, and the released state is set. When the tray moves from the drawing position to the mounting position, the sliding member is moved to the fourth position by the engagement with the engaging portion, and the moving member is moved to the first position. As a result, the transport roller and the clamping member are in a nip state. According to the above configuration, the urging force of the urging member is not applied to the tray via the sliding member, so that the nip state of the conveying unit can be switched, and the conveyance accuracy of the sheet by the conveying unit is improved. Decrease is prevented.

  (10) Preferably, in the transport device, the engagement portion includes the sliding member in a process in which the tray moves from the mounting position to a seventh position between the mounting position and the drawing position. To move the moving member to the second position, and in the process of moving the tray from the seventh position to the mounting position, the moving member is engaged with the sliding member to move the moving member to the second position. The fourth support portion supports the sliding member without contacting the engaging portion and the tray in a state where the tray is in the mounting position. is there.

  According to the above configuration, since the sliding member is not in contact with the tray and the engaging portion when the tray is mounted on the apparatus, the biasing force of the first biasing member is applied to the sliding member for some reason. Even when it is hanging, the biasing force is not applied to the tray via the sliding member. Therefore, even in such a case, the clamping member is not positioned with reference to the tray, and the sheet conveying accuracy by the conveying unit is prevented from being lowered.

  (11) Preferably, in the transport device, the first interlocking mechanism moves the moving member in a direction away from the first position in the crossing direction in a state where the moving member is in the second position. A blocking mechanism, and a first inclined surface having an end in the first direction in the drawing direction from an end in the second direction, and the sliding member. The end in the first direction is provided on the second inclined surface in the mounting direction from the end in the second direction and the engaging portion, and the end in the first direction is It is in the pull-out direction from the end in the second direction, and faces and does not contact the first inclined surface in a state where the tray is in the mounting position, and the tray is moved from the mounting position to the seventh position. In contact with the first inclined surface in the moving process, The sliding member is moved to the third position, and the tray is brought into sliding contact with the first inclined surface in the process of moving the tray from the seventh position to an eighth position between the seventh position and the withdrawal position. Thus, the first inclined surface is moved in the process of moving the sliding member to the sixth position against the urging force of the third urging member and moving the tray from the eighth position to the seventh position. Are provided on the engaging portion and the third inclined surface that guides the sliding member to the fifth position by sliding contact with the end portion in the first direction than the end portion in the second direction. The second inclined surface in the process of moving in the mounting direction, facing the second inclined surface in the state where the tray is in the mounting position and not contacting, and moving the tray from the seventh position to the mounting position. The sliding member by contacting with Further comprising a fourth inclined surface to move the position.

  According to the above configuration, when the tray moves from the mounting position to the pulling position, the sliding member contacts the first inclined surface and the third inclined surface in the process of moving the tray from the mounting position to the seventh position. The contact is moved to the third position. When the tray reaches the seventh position, the movement mechanism prevents the movement member from moving, and the movement member remains in the second position. In the process in which the tray moves from the seventh position to the eighth position, the first inclined surface and the third inclined surface are in sliding contact, so that the sliding member is moved to the sixth position against the urging force of the third urging member. It is moved and the engagement between the sliding member and the engaging portion is released.

  On the contrary, when the tray moves from the drawing position to the mounting position, the first inclined surface and the third inclined surface are moved by the urging force of the third urging member in the process of moving the tray from the eighth position to the seventh position. The sliding member comes into sliding contact and is guided to the fifth position. In the process of moving the tray from the seventh position to the mounting position, the sliding member is moved to the fourth position by the contact between the second inclined surface and the fourth inclined surface.

  (12) Preferably, in the transport device, the clamping member is a roller.

  (13) Further, an image recording apparatus according to an embodiment of the present invention includes the transport device and a recording unit that records an image on a sheet.

  According to the present invention, the conveyance means for nipping and conveying the sheet can be switched between a nip state where the sheet can be nipped and a nip release state where the sheet cannot be nipped by inserting and removing the tray. It is possible to suppress a decrease in sheet conveyance accuracy by the conveyance unit.

FIG. 1 is a perspective view of a multifunction machine 10 including a printer unit 11 as an image recording apparatus according to an embodiment of the present invention. FIG. 2 is a longitudinal sectional view schematically showing the internal structure of the printer unit 11. FIG. 3 is a top view of the transport roller 60 and the first frame 51 as viewed from the upper direction 7A. FIG. 4 is a perspective view of the first frame 51 that supports the moving member 53 in the first position, as viewed from the lower direction 7B. 5 is a cross-sectional view taken along line VV in FIG. FIG. 6 is a cross-sectional view taken along line VV in FIG. 3 showing the positional relationship between the lever member 54 and the feeding tray 20, wherein the feeding tray 20 is located at the mounting position P <b> 1 (a), And the state (b) in the middle of pulling out the feeding tray 20 from the printer unit 11 is shown. FIG. 7 is a cross-sectional view taken along line VV in FIG. 3 showing the positional relationship between the lever member 54 and the feeding tray 20, and the state where the feeding tray 20 is located at the drawing position P2 (a), In addition, a state (b) in the middle of mounting the feeding tray 20 on the printer unit 11 is shown. FIG. 8 is a perspective view of the first frame 51 that supports the moving member 53 in the second position, as viewed from the lower direction 7B. FIG. 9 is a cross-sectional view taken along line VV in FIG. 3 showing the positional relationship between the lever member 54 and the feeding tray 20 in a modified example, and the state where the feeding tray 20 is located at the mounting position P1 (a ) And a state (b) in the middle of pulling out the feeding tray 20 from the apparatus. FIG. 5 is a cross-sectional view taken along line VV in FIG. 3 showing the positional relationship between the lever member 54 and the feeding tray 20, and shows a state (a) in which the feeding tray 20 is located at the pull-out position P <b> 2; Reference numeral 20 denotes a state (b) in the middle of being attached to the apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings as appropriate. The embodiment described below is merely an example of the present invention, and it is needless to say that the embodiment of the present invention can be changed as appropriate without departing from the gist of the present invention. In the following description, the upper direction 7A and the lower direction 7B are defined on the basis of the state in which the multifunction machine 10 is installed so as to be usable (the state in FIG. 1), and the surface on which the opening 13 is provided is the front (front surface). Are defined as a forward direction 8A and a rear direction 8B, and a left direction 9A and a right direction 9B are defined when the MFP 10 is viewed from the front (front side).

[Overall structure of MFP 10]
As shown in FIG. 1, the multifunction machine 10 is generally formed in a thin rectangular parallelepiped, and is provided with a printer unit 11 (an example of an image recording apparatus) in the lower part. The multifunction machine 10 has various functions such as a facsimile function and a print function. The multifunction device 10 has a function of recording an image on one side of the recording paper 12 (see FIG. 2) by an inkjet method as a printing function. The multifunction machine 10 may record images on both sides of the recording paper 12. The printer unit 11 includes a transport device that transports the recording paper 12. The transport device mechanically interlocks with the transport roller pair 59 and the insertion / removal of the feeding tray 20 to interlock the nip state and the release state (nip release state) of the transport roller pair 59 (first interlock mechanism and An example of a second interlocking mechanism).

[Feeding tray 20]
As shown in FIG. 1, an opening 13 is formed on the front surface of the printer unit 11. The feeding tray 20 can be inserted into and removed from the printer unit 11 through the opening 13 by moving in the forward direction 8A and the backward direction 8B. Here, the front direction 8A and the rear direction 8B are examples of crossing directions.

  As shown in FIG. 2, the recording paper 12 is supported on the bottom plate 22 of the feeding tray 20 in a stacked state. The feeding tray 20 is a box-shaped member with an open top, and is located at the ends of the left and right directions 9A and 9B of the substantially rectangular bottom plate 22 in the upward direction 7A as shown in FIG. An extending substantially rectangular side plate 20B is erected. A protruding portion 20A (an example of a lever contact portion) protruding in the upward direction 7A is provided at an end portion of the rear side 8B of the side plate 20B so as to be able to contact a lever member 54 (an example of a contact member).

  A pair of side guides (not shown) that can move in the left direction 9A and the right direction 9B are supported by the bottom plate 22 of the feed tray 20. The left and right end portions 9A and 9B of the recording paper 12 supported by the bottom plate 22 are in contact with the side surfaces of the side guides. When one of the pair of side guides moves in the left direction 9A or the right direction 9B, the other moves in conjunction with the right direction 9B or the left direction 9A. As described above, in the present embodiment, the recording paper 12 is positioned with reference to the centers of the left direction 9A and the right direction 9B of the feeding tray 20.

[Discharge tray 21]
A discharge tray 21 is supported by the feed tray 20 at the front and top of the feed tray 20. The discharge tray 21 moves in the front direction 8 </ b> A and the rear direction 8 </ b> B together with the feeding tray 20. The recording paper 12 on which the image is recorded by the recording unit 24 is discharged to the discharge tray 21.

[Feeding unit 16]
As shown in FIG. 2, the feeding unit 16 is provided in the upper direction 7 </ b> A of the bottom plate 22 of the feeding tray 20 mounted on the printer unit 11 and below the recording unit 24. The feeding unit 16 includes a feeding roller 25, a feeding arm 26, and a drive transmission mechanism 27. The feed roller 25 is pivotally supported at the distal end portion of the feed arm 26. The feeding arm 26 rotates in the direction of an arrow 29 about a support shaft 28 provided at the base end. Thereby, the feeding roller 25 can be brought into contact with and separated from the feeding tray 20 or the recording paper 12 supported by the feeding tray 20.

  The feeding roller 25 is rotated by a driving force of a conveying motor (not shown) transmitted by a driving transmission mechanism 27 including a plurality of gears. As a result, among the recording sheets 12 supported by the bottom plate 22 of the feeding tray 20, the uppermost recording sheet 12 that is in contact with the feeding roller 25 is fed to the conveyance path 65. The feeding roller 25 may be rotated by applying a driving force from a motor provided separately from the conveying motor. Further, the drive transmission mechanism 27 is not limited to a form including a plurality of gears, and may include, for example, a belt spanned between the support shaft 28 and the shaft of the feeding roller 25.

[Conveyance path 65]
As shown in FIG. 2, a conveyance path 65 extends from the rear end portion of the feeding tray 20. The conveyance path 65 includes a curved portion 33 and a straight portion 34. The curved portion 33 extends while being curved with the rear direction 8B as the curved outer side and the front direction 8A as the curved inner side. The straight portion 34 extends in the front direction 8A and the rear direction 8B.

  The bending portion 33 is formed by a first guide member 18 and a second guide member 19 that face each other with a predetermined interval. The first guide member 18 defines the curved outer side of the curved portion 33. The second guide member 19 defines the inside of the bending portion 33. The straight line portion 34 is formed by the recording portion 24 and the platen 42 facing each other with a predetermined interval at a position where the recording portion 24 is disposed. The first guide member 18 and the second guide member 19 extend in the left direction 9A and the right direction 9B, which are directions orthogonal to the paper surface in FIG.

  The recording paper 12 supported by the feeding tray 20 is conveyed by the feeding roller 25 so as to make a U-turn from the bottom to the curved portion 33 and reaches the conveying roller pair 59. The recording paper 12 sandwiched by the pair of transport rollers 59 is transported in the forward direction 8A through the linear portion 34 with the image recording surface facing the recording unit 24. An image is recorded on the image recording surface of the recording paper 12 that has reached directly below the recording unit 24 by the recording unit 24. The recording sheet 12 on which the image is recorded is conveyed in the forward direction 8 </ b> A through the linear portion 34 and discharged to the discharge tray 21. As described above, the recording paper 12 is transported along the transport direction 15 indicated by the one-dot chain line arrow in FIG.

[First guide member 18]
The first guide member 18 is configured to be rotatable in the direction of an arrow 66 around a shaft 48 formed in the lower portion. The first guide member 18 defines the curved outer side of the bending portion 33 in the first state located at the position indicated by the solid line in FIG. 2, and is in the second state located at the position indicated by the broken line in FIG. The curved portion 33 is exposed to the outside. The user of the multifunction machine 10 can take out the recording paper 12 jammed in the curved portion 33 by changing the state of the first guide member 18 from the first state to the second state.

  The first guide member 18 may change its state by other than rotation. For example, the first guide member 18 may be configured to be detachable from the printer unit 11. In this case, the first guide member 18 is attached to the printer unit 11 and defines a curved outer side of the curved portion 33, and a second state in which the first guide member 18 is detached from the printer unit 11 and exposes the curved portion 33 to the outside. The state changes between.

[Recording unit 24]
As shown in FIG. 2, the recording unit 24 is provided in the upward direction 7 </ b> A of the linear portion 34, and includes a carriage 40 and a recording head 38. A platen 42 is provided at a position facing the recording unit 24 in the downward direction 7 </ b> B of the recording unit 24. The platen 42 is a member that supports the recording paper 12 conveyed by the conveying roller pair 59 through the linear portion 34 by the upper part.

  The carriage 40 is supported by two guide rails 56 and 57 that are spaced apart in the front direction 8A and the rear direction 8B so as to be reciprocally movable in the left direction 9A and the right direction 9B. The recording head 38 is mounted on the carriage 40. Ink is supplied to the recording head 38 from an ink cartridge (not shown). A nozzle 39 is formed on the lower surface of the recording head 38. In a state where the carriage 40 moves in the left direction 9A and the right direction 9B, the recording head 38 ejects ink droplets from the nozzles 39 toward the platen 42. As a result, an image is recorded on the recording paper 12 supported by the platen 42.

[Conveying roller pair 59]
As shown in FIG. 2, a conveyance roller pair 59 is disposed upstream of the recording head 38 in the linear portion 34 of the conveyance path 65 in the conveyance direction 15. A discharge roller pair 44 is disposed downstream of the recording head 38 in the linear portion 34 in the transport direction 15.

[Conveying roller 60]
The conveyance roller pair 59 includes a conveyance roller 60 (an example of a conveyance roller) arranged in the upward direction 7A of the linear portion 34, and a pinch roller 61 (arranged to face the conveyance roller 60 in the downward direction 7B of the linear portion 34. An example of a clamping member). As shown in FIG. 3, the transport roller 60 is a cylindrical member extending in the left direction 9 </ b> A and the right direction 9 </ b> B inside the housing 14. The transport roller 60 is supported by the side frame 55 and is disposed in the upward direction 7A of the first frame 51.

[Pinch roller 61]
A plurality of pinch rollers 61 are provided in the housing 14 at intervals in the left direction 9A and the right direction 9B. As shown in FIG. 5, the pinch roller 61 has a rotating shaft 61 </ b> A supported rotatably by a roller holder 85. As shown in FIG. 4, a plurality of roller holders 85 are provided corresponding to the pinch roller 61 at intervals in the left direction 9 </ b> A and the right direction 9 </ b> B. The roller holder 85 is supported by the first frame 51 in the upward direction 7 </ b> A of the first frame 51, and a plate spring-like biasing member 57 (an example of a first biasing member) supported by the first frame 51. , Is generally biased upward 7A.

[Discharge roller pair 44]
As shown in FIG. 2, the discharge roller pair 44 includes a discharge roller 62 disposed in the downward direction 7B of the linear portion 34, and a spur 63 disposed opposite to the discharge roller 62 in the upward direction 7A of the linear portion 34. And. A plurality of spurs 63 are provided at intervals in the left direction 9A and the right direction 9B. The discharge roller 62 includes a shaft 64 extending in the left direction 9 </ b> A and the right direction 9 </ b> B, and a roller portion 58 attached to the shaft 64. A plurality of roller portions 58 are also provided at intervals in the left direction 9 </ b> A and the right direction 9 </ b> B, and are provided at positions facing the spur 63. The spur 63 is pressed against the roller portion 58 by an elastic member (not shown).

  The transport roller 60 and the discharge roller 62 are rotated by a driving force transmitted from the transport motor. When the conveyance roller 60 rotates while the recording paper 12 is sandwiched between the conveyance roller pair 59 (nip state), the recording paper 12 is conveyed in the conveyance direction 15 by the conveyance roller pair 59. When the discharge roller 62 rotates while the recording paper 12 is sandwiched between the discharge roller pair 44, the recording paper 12 is transported in the transport direction 15 by the discharge roller pair 44.

[Biasing member 57]
As shown in FIG. 5, the urging member 57 is composed of, for example, a coil spring, and the axial direction is parallel to the upward direction 7A and the downward direction 7B, and the downward direction 7B of the bearing portion 85A of the roller holder 85. It is arranged at the position. One end portion of the urging member 57 is in contact with the bearing portion 85 </ b> A, and the other end portion is in contact with the first frame 51. Thereby, the urging member 57 urges the roller holder 85 in the upward direction 7A so that the pinch roller 61 is brought into contact with the conveying roller 60 positioned in the upward direction 7A. FIG. 5 shows a state where the roller holder 85 is located at the contact position P11 where the pinch roller 61 contacts the transport roller 60. Here, the upward direction 7A is an example of the first biasing direction.

[Roller holder 85]
As shown in FIG. 5, the roller holder 85 includes a bearing portion 85A that rotatably supports the rotating shaft 61A of the pinch roller 61, and a front extending portion 85B that extends from the bearing portion 85A in the front direction 8A. And have. The front extending portion 85B has a lower extending portion 85C that extends in the downward direction 7B from the end portion in the front direction 8A. The lower extending portion 85C has a contact shaft 85D that protrudes in the left direction 9A and the right direction 9B at the end in the lower direction 7B. The contact shaft 85D can contact the contact surface 53A of the moving member 53. The moving member 53 has a second position P3 (see FIG. 6B) where the contact surface 53A contacts the contact shaft 85D, and a first position P4 (see FIG. 6B) where the contact surface 53A does not contact the contact shaft 85D. 6 (a)) and can be moved along the front direction 8A and the rear direction 8B. Here, the front direction 8A and the rear direction 8B are examples of crossing directions that intersect the first biasing direction. The moving member 53 maintains the roller holder 85 at the separated position P12 against the biasing force of the biasing member 57 in a state where the contact surface 53A is in contact with the contact shaft 85D at the second position P3 (FIG. 6 ( b)).

  The moving member 53 is supported movably between the second position P3 and the first position P4 by a support portion 51C (an example of a first support portion) provided on the first frame 51. The support portion 51C is provided at the center of the first frame 51 in the left direction 9A and the right direction 9B, and has a slit 51D extending in the front direction 8A and the rear direction 8B. The moving member 53 has a boss portion 51E that can be inserted into the slit 51D on the surface in the upward direction 7A. In a state where the boss portion 51E is protruded in the upward direction 7A from the first frame 51 through the slit 51D, the extension portion 51F extending in the left direction 9A and the right direction 9B at the end of the upward direction 7A of the boss portion 51E is the first. The frame 51 is engaged with the upper surface 7A. As described above, the moving member 53 is supported by the support portion 51C so as to be movable along the front direction 8A and the rear direction 8B.

[First frame 51]
As shown in FIG. 6, the first frame 51 has a plate-like shape that is disposed substantially horizontally in the upward direction 7 </ b> A of the feeding tray 20 mounted on the printer unit 11, as shown in FIG. 6. It is a member. The first frame 51 has an opening 51 </ b> B that projects the downwardly extending portion 85 </ b> C of the roller holder 85 in the downward direction 7 </ b> B. As shown in FIG. 3, a plurality of openings 51B are provided corresponding to the pinch roller 61 along the left direction 9A and the right direction 9B. A contact shaft 85D provided at the lower end portion of the lower extending portion 85C is located in the downward direction 7B of the first frame 51.

[Side frame 55]
As shown in FIG. 3, side frames 55 are provided at the ends of the first frame 51 in the left direction 9 </ b> A and the right direction 9 </ b> B, respectively. The side frames 55 are arranged in the left direction 9 </ b> A and the right direction 9 </ b> B with respect to the straight portion 34 of the conveyance path 65. The side frame 55 is a plate-like member perpendicular to the first frame 51, and the end in the lower direction 7 </ b> B is connected to the end in the left direction 9 </ b> A and the right direction 9 </ b> B of the first frame 51. Alternatively, the first frame 51 and the pair of side frames 55 may be an integral member.

  As shown in FIG. 5, the side frame 55 has a wide portion 55 </ b> A having a wide width in the upper direction 7 </ b> A and the lower direction 7 </ b> B at the end in the rear direction 8 </ b> B. The wide portion 55A protrudes in the upward direction 7A from the adjacent portion, and a bearing 80 (see FIG. 4) that rotatably supports the conveying roller 60 is attached to the end portion of the protruding portion in the front direction 8A. The side frame 55 rotatably supports the transport roller 60 via a bearing 80 at positions 9A and 9B in the left direction with respect to the straight portion 34 of the transport path 65.

[Second frame]
As shown in FIGS. 4 and 8, the first frame 51 has a second frame 52 (an example of a second support portion) attached to end portions in the left direction 9 </ b> A and the right direction 9 </ b> B. The second frame 52 is adjacent to the side frame 55. The rotation shaft 54 </ b> A of the lever member 54 is supported by the second frame 52.

[Lever member 54]
As shown in FIG. 5, the lever member 54 pulls out the feeding tray 20 from the printer unit 11 and the mounting direction D <b> 4 (see FIG. 7B) when the feeding tray 20 is mounted on the printer unit 11. It is provided so as to be rotatable around a rotation shaft 54A extending in a direction (here, left direction 9A and right direction 9B) orthogonal to the pull-out direction D3 (see FIG. 6B). The lever member 54 is attached to the rotation shaft 54A so that the tip portion 54B, which is the rotation tip portion, is in a first state (the state shown in FIG. 5) located in the downward direction 7B of the rotation shaft 54A. It is biased by a biasing member 54C (an example of a second biasing member) which is a torsion spring. In this first state, the lever member 54 is not in contact with the feeding tray 20 in the state (mounted state) located at the mounted position P1, as shown in FIG. 6A. As described above, the lever member 54 is in the first state at the predetermined position.

[Movement of feeding tray 20]
As shown in FIG. 6A, the feeding tray 20 is located at the mounting position P <b> 1 in the mounting state where the feeding tray 20 is mounted on the printer unit 11. When pulling out the feeding tray 20 from the printer unit 11 from the state shown in FIG. 6A, the feeding tray 20 moves in the forward direction 8A. At this time, the protruding portion 20A of the feeding tray 20 comes into contact with the distal end portion 54B of the lever member 54 in the first state. As a result, as shown in FIG. 6B, in the state where the feeding tray 20 is being pulled out from the printer unit 11, the lever member 54 performs the first rotation around the rotation shaft 54A from the first state. Rotate in the direction D1 by an angle θ1 to enter the second state. The distal end portion 54B of the lever member 54 in the second state is located in the forward direction 8A and the upward direction 7A from the distal end portion 54B of the lever member 54 in the first state. Here, the angle θ1 is an angle greater than 0 ° and less than 180 °.

  When the feeding tray 20 is further pulled out from the state shown in FIG. 6B, the feeding tray 20 moves in the forward direction 8A corresponding to the drawing direction D3, and the drawing shown in FIG. Position P2 is reached. In this state, the lever member 54 is positioned in the first state by the urging force of the urging member 54C.

  As shown in FIG. 7A, the feeding tray 20 is located at the pulling position P <b> 2 in the pulling state pulled out from the printer unit 11. When the feeding tray 20 is attached to the printer unit 11 from the state shown in FIG. 7A, the feeding tray 20 moves in the backward direction 8B. At this time, the protruding portion 20A of the feeding tray 20 comes into contact with the distal end portion 54B of the lever member 54 in the first state. As a result, as shown in FIG. 7B, in a state where the feeding tray 20 is being attached to the printer unit 11, the lever member 54 is moved from the first state to the second around the rotation shaft 54A. It turns by the angle θ2 in the turning direction D2 to enter the third state. The distal end portion 54B of the lever member 54 in the third state is located in the rear direction 8B and the upward direction 7A from the distal end portion 54B of the lever member 54 in the first state. Here, the angle θ2 is an angle greater than 0 ° and less than 180 °.

[Moving member 53]
The moving member 53 is provided on the first frame 51 so as to be movable in the forward direction 8A and the backward direction 8B. As shown in FIGS. 4 to 8, the moving member 53 is along the surface of the first frame 51 in the downward direction 7B, and in the left direction 9A, the right direction 9B, the front direction 8A, and the rear direction 8B. The flat plate portion 50 extends, and the extending portion 50C extends in the downward direction 7B from the end portions of the flat plate portion 50 in the left direction 9A and the right direction 9B. As shown in FIG. 5, the extending portion 50 </ b> C is a plate-like member having a substantially rectangular shape when viewed in the left direction 9 </ b> A and the right direction 9 </ b> B, and is perpendicular to the upward direction 7 </ b> A and the downward direction 7 </ b> B. The surface is roughly U-shaped. The extending portion 50C has a lower end surface parallel to the front direction 8A and the rear direction 8B.

  The moving member 53 has a concave portion 50B having a rectangular opening on the surface of the flat plate portion 50 in the downward direction 7B. A plurality of recesses 50B are provided in correspondence with the roller holder 85 along the left direction 9A and the right direction 9B. The recess 50B has cam portions 50A at the ends in the left direction 9A and the right direction 9B, respectively. The surface in the downward direction 7B of the cam portion 50A constitutes a contact surface 53A that can contact the roller holder 85. The contact surface 53 </ b> A is substantially orthogonal to the first biasing direction in which the biasing member 57 biases the roller holder 85. In addition, the moving member 53 has a first contact portion 53B and a second contact portion 53C in the extending portion 50C.

[Cam part 50A, contact surface 53A]
The cam portion 50A is a trapezoidal member extending in the front direction 8A and the rear direction 8B, and has an inclined surface 50D in which the rear direction 8B end is located in the lower direction 7B from the front direction 8A end at the end of the lower direction 7B. doing. A contact surface 53A perpendicular to the upper direction 7A and the lower direction 7B extends in the rear direction 8B from the end of the rear surface 8B of the inclined surface 50D. As for the surface of the cam part 50 in the downward direction 7B, the contact surface 53A is located in the lowest direction 7B.

[First contact portion 53B, second contact portion 53C]
As shown in FIG. 5, the extending portion 50 </ b> C of the moving member 53 includes a rib 53 </ b> D (see FIG. 5) extending in the front direction 8 </ b> A and the rear direction 8 </ b> B. As shown in FIG. 4, from the rib 53D, if it is an extension part 50C located in the left direction 9A, it protrudes in the left direction 9A, and if it is an extension part 50C located in the right direction 9B, it extends in the right direction 9B. A cylindrical first contact portion 53B and a second contact portion 53C are provided so as to protrude. The first contact portion 53B is disposed at a position in the front direction 8A from the center of the front direction 8A and the rear direction 8B in the extension portion 50C, and the second contact portion 53C is in the front direction 8A in the extension portion 50C. And it arrange | positions in the position of the back direction 8B from the center of the back direction 8B. The pivot shaft 54A of the lever member 54 is disposed between the first contact portion 53B and the second contact portion 53C in the front direction 8A and the rear direction 8B.

  As shown in FIG. 6A, the first contact portion 53B is in contact with the front surface 8A of the lever member 54 in the first state when the moving member 53 is located at the first position P4. It touches. As shown in FIG. 7A, the second contact portion 53C is in contact with the rear surface 8B of the lever member 54 in the first state when the moving member 53 is located at the second position P3. It touches. As shown in FIG. 6B, the first abutting portion 53B is moved to the lever member by the rotation of the angle θ1 in the first rotation direction D1 from the first state to the second state of the lever member 54. The moving member 53 is moved to the second position P3 by being pressed in the forward direction 8A by the surface of the forward direction 8A of 54. As shown in FIG. 7B, the second contact portion 53B is moved to the lever member by the rotation of the angle θ2 in the second rotation direction D2 from the first state to the third state of the lever member 54. The moving member 53 is moved to the first position P4 by being pressed in the rear direction 8B by the surface of the rear direction 8B of 54.

[Linked operation]
In the mounted state of the feeding tray 20 shown in FIG. 6A, the contact surface 53A of the moving member 53 is located at the first position P4. In this state, the roller holder 85 (specifically, the contact shaft 85D, see FIG. 5) is not in contact with the contact surface 53A, and the roller holder 85 is in contact with the pinch roller 61 in contact with the transport roller 60. Located at position P11. At this time, the conveyance roller pair 59 is in a nip state in which the recording paper 12 is nipped and can be conveyed in the conveyance direction 15. As shown in FIG. 6B, when the lever member 54 is rotated from the first state to the second state by the movement of the feeding tray 20 in the pull-out direction D3, the first contact is caused by the rotation. The contact portion 53B is pressed by the lever member 54 in the forward direction 8A. Thereby, the moving member 53 moves in the forward direction 8A, and the contact surface 53A moves to the second position P3. In the process, the contact shaft 85D of the roller holder 85 contacts the inclined surface 50D, and is guided to the inclined surface 50D and contacts the contact surface 53A as the moving member 53 moves. Accordingly, the roller holder 85 is moved against the urging force of the urging member 57 up to the separation position P12 in the downward direction 7B, and the pinch roller 61 is separated from the conveying roller 60. As a result, the conveyance roller pair 59 is released from the nip state and is in a release state in which the recording paper 12 cannot be clamped.

  In the pulled-out state of the feeding tray 20 shown in FIG. 7A, the contact surface 53A of the moving member 53 is located at the second position P3. In this state, the roller holder 85 (specifically, the contact shaft 85D, see FIG. 5) is in contact with the contact surface 53A, and the roller holder 85 is located at a separation position P12 where the pinch roller 61 is separated from the conveyance roller 60. To do. At this time, the conveyance roller pair 59 is in a release state in which the recording paper 12 cannot be clamped. As shown in FIG. 7B, when the lever member 54 is rotated from the first state to the third state by the movement of the feeding tray 20 in the mounting direction D4, the second contact is caused by the rotation. The contact portion 53C is pressed backward 8B by the lever member 54. Thereby, the moving member 53 moves in the rear direction 8B, and the contact surface 53A moves to the first position P4. As a result, the roller holder 85 is not in contact with the contact surface 53A, the roller holder 85 is moved to the contact position P11 in the upward direction 7A by the urging force of the urging member 57, and the pinch roller 61 is Abuts on the transport roller 60. As a result, the conveyance roller pair 59 is in a nip state, and is in a state in which the recording paper 12 can be nipped and conveyed.

  As described above, the protruding portion 20A of the feeding tray 20 is provided in the feeding tray 20 so as to be able to contact the lever member 54 located in the first state, and the feeding tray 20 is pulled out from the mounting position P1. When moving to P2, the lever member 54 is rotated from the first state to the second state, and when the feeding tray 20 moves from the pull-out position P2 to the mounting position P1, the lever member 54 is moved from the first state to the third state. Rotate to state.

  As the lever member 54 rotates from the first state to the second state, the moving member 53 moves to the second position P3. As the lever member 54 rotates from the first state to the third state, the moving member 53 moves to the first position P4. Thus, the moving member 53 moves to the second position P3 and the first position P4 in conjunction with the change in state of the lever member 54.

  More specifically, the first contact portion 53B provided on the moving member 53 contacts the lever member 54 that rotates from the first state to the second state, and the moving member 53 is moved by the rotation of the lever member 54. Move to the second position P3. Further, the second contact portion 53C provided on the moving member 53 contacts the lever member 54 that rotates from the first state to the third state, and the lever member 54 rotates to move the moving member 53 to the first position. Move to P4.

[Effect of the embodiment]
According to the present embodiment, the moving member 53, the roller holder 85, and the urging member 57 are supported by the first frame 51. The transport roller 60 is supported by a side frame 55 connected to the first frame 51. Therefore, it is not necessary to position the pinch roller 61 with reference to the feeding tray 20, and the positioning accuracy of the pinch roller 61 can depend on the dimensional accuracy and position accuracy of the first frame 51 and the side frame 55. Therefore, even when the mounting accuracy of the feeding tray 20 to the printer unit 11 and the positioning accuracy between the release member and the feeding tray 20 that are normally used for releasing the nip state of the conveying means are not high, the pinch roller The positioning accuracy of 61 can be increased. As a result, it is easy to ensure sufficient conveyance accuracy by the conveyance roller pair 59, and a decrease in conveyance accuracy of the recording paper 12 by the conveyance roller pair 59 can be suppressed.

[Modification]
In the above-described embodiment, the moving member 53 is moved to the second position P3 and the first position P4 in conjunction with the state change caused by the rotation of the lever member 54. In this modification, as shown in FIG. 9, the moving member 53 is moved to the second position P3 and the first position P4 in conjunction with the change in the state of the sliding member 67.

  The sliding member 67 is supported by the support portion 68 so as to be movable along the mounting direction D4 and the drawing direction D3. The sliding member 67 is connected to the moving member 53 and can move along the mounting direction D4 and the pulling-out direction D3 in conjunction with the movement of the moving member 53 to the second position P3 and the movement to the first position P4. It is. When the moving member 53 is located at the second position P3, the sliding member 67 is located at the third position P5, and when the moving member 53 is located at the first position P4, the sliding member 67 is located at the fourth position P6. Located in. Further, the sliding member 67 is movable in a first direction D5 (here, upward direction 7A) intersecting the mounting direction D4 and the drawing direction D3 and in the second direction D6 opposite thereto (here, downward direction 7B). It is supported by the support portion 68. Further, the sliding member 67 is brought into contact with the engaging portion 20C and the feeding tray 20 by the engaging portion 68 in a state where the feeding tray 20 shown in FIG. 9A is in the mounting position P1. It is supported without.

  The feeding tray 20 is provided with an engaging portion 20C. When the feeding tray 20 moves from the mounting position P1 to the pulling position P2 shown in FIG. 9D, the engaging portion 20C is a sliding member as shown in FIG. 9B. 67, and the moving member 53 is moved to the second position P3. In this state, the feeding tray 20 has moved from the mounting position P1 to the seventh position P9 located in the pull-out direction D3. In a state where the feeding tray 20 is located at the seventh position P9, the sliding member 67 is prevented from moving in the direction away from the first position P4 in the front direction 8A and the rear direction 8B. For this reason, when the feeding tray 20 further moves in the pull-out direction D3 from the seventh position P9, the sliding member 67 moves upward 7A (first direction) by sliding contact between the fourth inclined surface 20E and the second inclined surface 67B. In the state where the feeding tray 20 has reached the eighth position P10, it moves to the sixth position P8 in the upward direction 7A and the downward direction 7B. In a state where the sliding member 67 has moved to the sixth position P8 in the upward direction 7A and the downward direction 7B, the engaged state between the sliding member 67 and the engaging portion 20C is released. In a state where the feeding tray 20 is further moved in the drawing direction D3 and reaches the drawing position P2, the sliding member 67 is not in contact with the tray as shown in FIG. The moving member 67 is located at the fifth position P7 in the upward direction 7A and the downward direction 7B by the urging force of the urging member 69.

  Conversely, the engaging portion 20C moves from the state shown in FIG. 9B to the state shown in FIG. 9A when the feeding tray 20 moves from the pull-out position P2 to the mounting position P1. By moving the sliding member 67, the moving member 53 is moved to the first position P4. As shown in FIG. 9B, the moving member 53 is prevented from moving in the direction away from the first position P4 in the front direction 8A and the rear direction 8B by the blocking mechanism 70 in the state at the second position P3. Be blocked.

  The sliding member 67 can be engaged with the engaging portion 20C by the support portion 68 along the first direction D5 and the second direction D6 (see FIGS. 9A and 9B). ) And the sixth position P8 (see FIG. 9C) which is separated from the feeding tray 20 in the first direction D5 from the fifth position P7 and cannot be engaged with the engaging portion 20C. ing. The sliding member 67 is urged in the second direction D6 by an urging member 69 (an example of a third urging member).

  As described above, the engaging portion 20C engages with the sliding member 67 in the process in which the feeding tray 20 moves from the mounting position P1 to the seventh position P9 between the mounting position P1 and the drawing position P2. The moving member 53 is moved to the second position P3. Further, the engaging portion 20C engages with the sliding member 67 and moves the moving member 53 to the first position P4 in the process in which the feeding tray 20 moves from the seventh position P9 to the mounting position P1.

  The sliding member 67 includes a first inclined surface 67A in which the end in the first direction D5 is in the drawing direction D3 from the end in the second direction D6, and the end in the first direction D5 is from the end in the second direction D6. And a second inclined surface 67B in the mounting direction D4. On the other hand, the engaging portion 20C has a third inclined surface 20D in which the end portion in the first direction D5 is in the drawing direction D3 than the end portion in the second direction D6.

As shown in FIG. 9A, the third inclined surface 20D faces the first inclined surface 67A and is not in contact with the feeding tray 20 in the mounting position P1. In this state, the position along the mounting direction D4 and the drawing direction D3 of the sliding member 67 is the fourth position P6. 9A, the engaging portion 20C further includes a fourth inclined surface 20E in which the end portion in the first direction D5 is in the mounting direction D4 from the end portion in the second direction D6. . The fourth inclined surface 20E faces the second inclined surface 67B and is not in contact with the feeding tray 20 in the mounting position P1. In the process in which the feed tray 20 moves from the mounting position P1 to the seventh position P9 (see FIG. 9B), the fourth inclined surface 20E comes into contact with the second inclined surface 67B , so that the sliding member 67 is Move to position 3 P5.

As shown in FIG. 9C, the fourth inclined surface 20E moves from the seventh position P9 to the eighth position P10 where the feeding tray 20 is between the seventh position P9 and the extraction position P2. In the process, the sliding member 67 is moved to the sixth position P8 against the urging force of the urging member 69 by slidingly contacting the second inclined surface 67B . On the contrary, the fourth inclined surface 20E slides the sliding member 67 from the sixth position P8 by slidingly contacting the second inclined surface 67B in the process of moving the feeding tray 20 from the eighth position P10 to the seventh position P9. Guide to the fifth position P7.

The third inclined surface 20D moves the sliding member 67 to the fourth position P6 by coming into contact with the first inclined surface 67A in the process in which the feeding tray 20 moves from the seventh position P9 to the mounting position P1.

  In the above-described embodiment, the case where the transport device is used for the ink jet recording apparatus as the image recording apparatus has been described. However, the conveyance device of the present invention can be used not only for an ink jet recording apparatus but also for other image recording apparatuses such as a laser printer. Further, the conveying device of the present invention is not limited to use in an image recording apparatus, and can be used in all devices that use sheets.

  In the above embodiment, the lever member 54 is urged to the first state by the urging member 57, but may be positioned to the first state by its own weight.

  In the above embodiment, the pinching member is constituted by the pinch roller 61, but the pinching member is not limited to a driven roller such as the pinch roller 61. For example, it may be a plate-shaped or rectangular parallelepiped pressing member having a pressing surface with a sufficiently small friction coefficient that presses the recording paper 12 toward a conveying roller such as the reverse roller 45.

  In the above embodiment, the driving roller such as the conveying roller 60 driven by the motor is the conveying roller. However, the present invention is not limited to this. For example, in a configuration in which the transport roller 60 is disposed in the downward direction 7B and the pinch roller 61 facing the transport roller 60 is disposed in the upward direction 7A, a driven roller such as the pinch roller 61 is used as the transport roller, and a drive roller such as the transport roller 60 is used. May be moved to a contact position where the conveying roller 60 contacts the pinch roller 61 and a spaced position where the conveying roller 60 is separated from the pinch roller 61 by the rotation of the lever member 54.

10. Multifunction machine 11 ... Printer unit (image recording device)
12. Recording paper (sheet)
20 ... feed tray 20A ... projecting portion 20C ... engaging portion 20D ... third inclined surface 20E ... fourth inclined surface 51 ... first frame 52 ... second frame 53 ... moving member 53A ... contact surface 53B ... first contact Contact portion 53C ... second contact portion 54 ... lever member 57 ... biasing member (first biasing member)
59 ... Conveying roller pair 60 ... Conveying roller 61 ... Pinch roller 61A ... Rotating shaft 67 ... Sliding member 67A ... First inclined surface 67B ... Second inclined surface 68 ... Supporting part (fourth supporting part))
69 ... biasing member (third biasing member))
70: Blocking mechanism 85 ... Roller holder

Claims (12)

A transport roller;
A clamping member that is disposed opposite to the conveying roller and capable of sandwiching a sheet with the conveying roller;
A holding member that holds the holding member and is movable between a contact position where the holding member comes into contact with the conveyance roller and a separation position where the clamping member is separated from the conveyance roller;
A first biasing member that biases the holding member toward the contact position;
A contact surface capable of contacting the holding member, the first urging member being movable along a crossing direction intersecting a first urging direction for urging the holding member; A moving member that maintains the holding member at the separated position against the urging force of the first urging member in a state where the abutting surface is in contact with the holding member;
A first support portion that movably supports the moving member between a second position where the contact surface contacts the holding member and a first position where the contact surface does not contact the holding member;
A second support portion that supports the holding member so as to be movable between the contact position and the separation position;
A third support for supporting the first biasing member;
A tray capable of supporting the sheet and capable of being attached to the apparatus and pulled out from the apparatus along the intersecting direction;
The process of moving the tray from the mounting position corresponding to the state where the tray is mounted to the apparatus to the pulling position corresponding to the state where the tray is pulled out from the apparatus, and the tray from the pulling position. In the process of moving to the mounting position, a contact member whose state changes by contacting the tray is provided, and the moving member is moved to the first position and the second position in conjunction with the state change of the contact member. A first interlocking mechanism for moving to
The contact member is
In conjunction with the movement of the moving member to the first position and the movement to the second position, the moving member moves in the mounting direction when the tray is mounted on the apparatus and in the pull-out direction when the tray is pulled out from the apparatus. A sliding member that is connected to the moving member and is movable in a first direction intersecting the mounting direction and the pulling-out direction and in a second direction opposite to the first direction;
The first interlocking mechanism is
Provided in the tray, and when the tray moves from the mounting position to the pull-out position, engages with the sliding member, moves the moving member to the second position by the movement of the tray, An engaging portion that engages with the sliding member when the tray moves from the drawer position to the mounting position, and moves the moving member to the first position by movement of the tray;
The sliding member is movable along the mounting direction and the pulling-out direction to a third position where the moving member is located at the second position and a fourth position where the moving member is located at the first position. A fifth position where the sliding member is movable in the second direction and engageable with the engaging portion, and the sliding member is moved from the fifth position. A fourth support portion that is movably supported along the first direction and the second direction at a sixth position that moves in the first direction and becomes unengageable with the engagement portion;
And a third urging member that urges the sliding member in the second direction. The engaging portion is
The tray engages with the sliding member in the process of moving the tray from the mounting position to the seventh position between the mounting position and the drawing position, and moves the moving member to the second position. Yes,
Engaging the sliding member in the process of moving the tray from the seventh position to the mounting position, and moving the moving member to the first position;
The fourth support part is
2. The transport device according to claim 1, wherein the slide member is supported without contacting the engaging portion and the tray in a state where the tray is in the mounting position. The first interlocking mechanism is
A blocking mechanism that prevents the moving member from moving in a direction away from the first position in the crossing direction while the moving member is in the second position;
A first inclined surface provided on the sliding member, wherein the end in the first direction is in the pull-out direction from the end in the second direction;
A second inclined surface provided on the sliding member, wherein the end in the first direction is in the mounting direction from the end in the second direction;
Provided in the engaging portion, the end in the first direction is in the pull-out direction than the end in the second direction, and faces the first inclined surface in a state where the tray is in the mounting position. And a third inclined surface that moves the sliding member to the fourth position by contacting the first inclined surface in the process of moving the tray from the seventh position to the mounting position without contacting. ,
Provided in the engaging portion, the end in the first direction is in the mounting direction from the end in the second direction, and faces the second inclined surface in a state where the tray is in the mounting position. In the process of moving the tray from the mounting position to the seventh position without contacting, the sliding member is moved to the third position by contacting the second inclined surface, and the tray is moved to the third position. In the process of moving from the seventh position to the eighth position between the seventh position and the pull-out position, the sliding force against the urging force of the third urging member is obtained by sliding contact with the second inclined surface. The moving member is moved to the sixth position, and the sliding member is guided to the fifth position by slidingly contacting the second inclined surface in the process of moving the tray from the eighth position to the seventh position. And a fourth inclined surface. Conveying device according to. A transport roller;
A clamping member that is disposed opposite to the conveying roller and capable of sandwiching a sheet with the conveying roller;
A holding member that holds the holding member and is movable between a contact position where the holding member comes into contact with the conveyance roller and a separation position where the clamping member is separated from the conveyance roller;
A first biasing member that biases the holding member toward the contact position;
A contact surface capable of contacting the holding member, the first urging member being movable along a crossing direction intersecting a first urging direction for urging the holding member; A moving member that maintains the holding member at the separated position against the urging force of the first urging member in a state where the abutting surface is in contact with the holding member;
A first support portion that movably supports the moving member between a second position where the contact surface contacts the holding member and a first position where the contact surface does not contact the holding member;
A second support portion that supports the holding member so as to be movable between the contact position and the separation position;
A third support for supporting the first biasing member;
A tray capable of supporting the sheet and capable of being attached to the apparatus and pulled out from the apparatus along the intersecting direction;
The process of moving the tray from the mounting position corresponding to the state where the tray is mounted to the apparatus to the pulling position corresponding to the state where the tray is pulled out from the apparatus, and the tray from the pulling position. In the process of moving to the mounting position, a contact member whose state changes by contacting the tray is provided, and the moving member is moved to the first position and the second position in conjunction with the state change of the contact member. A first interlocking mechanism for moving to
The contact member is
It is provided so as to be rotatable about a rotation axis extending in a mounting direction when the tray is mounted on the device and a direction intersecting with a pulling direction when the tray is pulled out from the device. The second state rotated from the first state to the first rotation direction around the rotation axis by an angle θ1 of less than 180 ° and the first state opposite to the first rotation direction around the rotation axis. It is possible to take a third state rotated by an angle θ2 less than 180 ° in the second rotation direction, and a lever member located in the first state at a predetermined position,
The first interlocking mechanism is
The tray is provided in the tray so as to be able to come into contact with the lever member located in the first state, and the lever member is moved from the first state to the second when the tray moves from the mounting position to the drawing position. A lever abutting portion for rotating the lever member from the first state to the third state when the tray is moved from the pull-out position to the mounting position.
The moving member is moved to the second position by the rotation of the lever member from the first state to the second state, and the rotation of the lever member from the first state to the third state is performed. And a second interlocking mechanism for moving the moving member to the first position.   The transport apparatus according to claim 4, wherein the first interlocking mechanism further includes a second urging member that urges the lever member to the first state. The second interlocking mechanism is
The moving member is disposed so as to be able to contact the lever member rotating from the first state to the second state, and the moving member is moved to the second position by the rotation of the lever member. A first contact portion to be moved to
The moving member is disposed so as to be able to contact the lever member rotating from the first state to the third state, and the moving member is moved to the first position by the rotation of the lever member. The conveyance device according to claim 4, further comprising: a second contact portion that is moved to the second position. The first contact portion contacts the lever member in the first state in a state where the moving member is in the first position,
The transport device according to claim 6, wherein the second contact portion contacts the lever member in the first state when the moving member is in the second position.   The transport apparatus according to claim 4, further comprising a first frame provided with the first support part, the second support part, and the third support part.   The transport apparatus according to claim 8, further comprising a second frame supported by the first frame and supporting the rotation shaft.   The transport device according to claim 4, wherein the tray and the lever contact portion are not in contact with the lever member in a state where the tray is mounted on the device.   The conveying device according to claim 1, wherein the clamping member is a roller. A transport apparatus according to any one of claims 1 to 11,
An image recording apparatus comprising: a recording unit that records an image on a sheet.

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