Sheet processing apparatus

Abstract

The invention provides a sheet processing device which can restrain hooking when a sheet moves. According to one embodiment, a sheet processing apparatus includes a guide, a support portion, a stacker, and a door. The guide has a conveyance surface along a conveyance direction of the sheet. The support portion forms a conveyance path of the sheet together with the guide. The stacker has a stacking surface that supports a surface of the sheet conveyed through the conveyance path. The door is configured so as to be able to receive the sheet to the stacker. The door has a first extension and a second extension. The plurality of first extension parts are arranged at intervals in a direction orthogonal to the normal direction of the stacking surface and the conveying direction. The second extension portion is disposed so as to block between two of the first extension portions adjacent to each other in the orthogonal direction.

Description

Technical Field

[0001] An embodiment of the present invention relates to a sheet processing apparatus. Background Art

[0002] The sheet material processing device includes a guide, a support, a stacker, and a door. The guide has a conveying surface along the conveying direction of the sheet material. The support and the guide together form a conveying path for the sheet material. The stacker has a stacking surface that supports the surface of the sheet material conveyed through the conveying path. The door is configured so that the sheet material can be received by the stacker. If the end of the sheet material is hooked on the door when the sheet material is moved, the sheet material may be jammed. Summary of the invention

[0003] Technical problem to be solved by the invention

[0004] The technical problem to be solved by the present invention is to provide a sheet processing device capable of preventing a sheet from being caught when it moves.

[0005] Solutions for solving technical problems

[0006] The sheet processing device of the embodiment has a guide, a support, a stacker and a door. The guide has a conveying surface along the conveying direction of the sheet. The support together with the guide forms a conveying path for the sheet. The stacker has a stacking surface, and the stacking surface supports the surface of the sheet conveyed through the conveying path. The door is configured in a manner that can receive the sheet to the stacker. The door has a first extension portion and a second extension portion. A plurality of first extension portions are arranged at intervals in a direction orthogonal to the normal direction of the stacking surface and the conveying direction, respectively. The second extension portion is arranged in a manner that blocks the space between two adjacent first extension portions in the orthogonal direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 It is a schematic structural diagram of the image forming apparatus according to the embodiment.

[0008] Figure 2 This is a block diagram showing an example of a functional configuration of the image forming apparatus according to the embodiment.

[0009] Figure 3 It is a schematic structural diagram of a sheet processing apparatus according to an embodiment.

[0010] Figure 4 It is a schematic structural diagram of the periphery of a stack entrance door in the sheet processing apparatus according to the embodiment.

[0011] Figure 5 1 is a perspective view showing a first extending portion and a second extending portion of a door according to an embodiment.

[0012] Figure 6 This is an explanatory diagram of a first effect played by the supporting state of the first extending portion and the second extending portion in the supporting portion of the embodiment.

[0013] Figure 7 This is an explanatory diagram of a second effect played by the supporting state of the first extending portion and the second extending portion in the supporting portion of the embodiment.

[0014] Figure 8 1 is a perspective view showing a first extending portion and a second extending portion of a first modified example.

[0015] Fig. 9 1 is a perspective view showing a first extending portion and a second extending portion of a second modified example.

[0016] Description of Reference Numerals

[0017] 31: stacker; 33: stacking surface; 50: guide; 51: conveying surface; 55: support portion; 60: door; 61: first extension portion; 62: second extension portion; 63: end of first extension portion: 64: end of second extension portion: 200: sheet processing device: C: conveying path; P: sheet. DETAILED DESCRIPTION

[0018] Hereinafter, the sheet material processing apparatus according to the embodiment will be described with reference to the drawings. In the following description, the same reference numerals are used for components having the same or similar functions, and repeated descriptions of these components may be omitted.

[0019] Figure 1 1 is a schematic diagram of the image forming apparatus 1 according to the embodiment. For example, the image forming apparatus 1 is placed in a workplace. The image forming apparatus 1 includes an image forming apparatus main body 100 and a sheet processing apparatus 200. The image forming apparatus main body 100 and the sheet processing apparatus 200 are placed adjacent to each other.

[0020] The image forming apparatus main body 100 will be described.

[0021] The image forming apparatus body 100 forms an image on a sheet P (recording medium) using a recording agent. The sheet P is, for example, plain paper or label paper. A specific example of the recording agent is a toner. The toner is either a toner used as a decolorizable recording agent or a toner used as a non-decolorizable recording agent.

[0022] For example, the image forming apparatus main body 100 is a multifunction machine. Figure 1 As shown, the image forming apparatus main body 100 includes a display unit 15 , an operation unit 14 , an image reading unit 16 , a printing unit 17 , a sheet storage unit 18 , a paper discharge roller 19 , and a first control unit 80 .

[0023] The display unit 15 is an image display device such as a liquid crystal display, an organic EL (Electro Luminescence) display, etc. The display unit 15 displays various information related to the image forming apparatus main body 100 and the sheet processing apparatus 200 .

[0024] The operation unit 14 has a plurality of buttons. The operation unit 14 receives user operations. The operation unit 14 outputs a signal corresponding to the user operations to the first control unit 80 of the image forming apparatus body 100. The display unit 15 and the operation unit 14 may be configured as an integrated touch panel.

[0025] The image reading unit 16 reads image information of a reading object as light and dark. The image reading unit 16 outputs the read image information to the printing unit 17 .

[0026] The sheet storage unit 18 stores sheets P for forming an image and supplies the stored sheets P to the printing unit 17 .

[0027] The printing section 17 forms an image on a sheet according to the image information generated by the image reading section 16 or the image information received via the communication path. The printing section 17 includes an image forming section, a transfer section, and a fixing device. The image forming section forms an electrostatic latent image on a photosensitive drum according to the image information. The image forming section attaches a toner to the electrostatic latent image to form a visible image. The transfer section transfers the visible image to the sheet. The fixing device heats and pressurizes the toner to fix the visible image on the sheet.

[0028] The paper discharge roller 19 is disposed near a paper discharge port of the image forming apparatus main body 100. The paper discharge roller 19 delivers the sheet P on which an image is formed to the sheet processing device 200.

[0029] Figure 2 1 is a block diagram showing an example of a functional structure of the image forming apparatus 1 according to the embodiment. Figure 2 As shown, the image forming apparatus body 100 includes a CPU (Central Processing Unit) 81, a memory 82, an auxiliary storage device 83, etc. connected by a bus. The image forming apparatus body 100 functions as a device including a display unit 15, an operation unit 14, an image reading unit 16, a printing unit 17, a sheet storage unit 18, and a communication unit 84 by executing a program.

[0030] The CPU 81 functions as the first control unit 80 by executing programs stored in the memory 82 and the auxiliary storage device 83. The first control unit 80 controls the operation of each unit of the image forming apparatus main body 100 and the sheet processing device 200.

[0031] The auxiliary storage device 83 is configured to include a storage device such as a magnetic hard disk device, a semiconductor storage device, etc. The auxiliary storage device 83 stores information.

[0032] The communication unit 84 is configured to include a communication interface for connecting the device to an external device. The communication unit 84 communicates with the external device via the communication interface.

[0033] The sheet processing apparatus 200 will be described.

[0034] like Figure 1 As shown, the sheet processing apparatus 200 performs post-processing on the image-formed sheet P. For example, the post-processing is a stapling process or a saddle folding process. The sheet processing apparatus 200 includes a stapling mechanism 20 , a saddle folding mechanism 30 , and a second control unit (control unit) 90 .

[0035] The binding mechanism 20 includes a waiting tray 21, a processing tray 22, and a binder 23. The binder 23 performs binding processing on the peripheral edges of a plurality of sheets P. The plurality of sheets P are hereinafter referred to as a sheet bundle. The sheets P after the binding processing are conveyed by a conveyor belt 24. The sheets P conveyed by the conveyor belt 24 are discharged to a movable tray 27.

[0036] The sheet processing apparatus 200 includes a movable tray 27, an upper tray 26, and a lower tray 28. The sheets P after stapling processing are discharged to the movable tray 27. The sheets P not subjected to stapling processing are discharged to the upper tray 26. The lower tray 28 is located at the lower part of the sheet processing apparatus 200. The sheets P processed by the saddle folding mechanism 30 are discharged to the lower tray 28.

[0037] Figure 3 2 is a schematic diagram of the structure of the sheet material processing device 200 according to the embodiment. Figure 3 As shown, a saddle folding mechanism 30 is provided at a lower portion of the sheet processing apparatus 200. The saddle folding mechanism 30 includes a stacker 31 and a post-processing section 40. The post-processing section 40 includes a stapling section 41, a folding unit 42, and a folding reinforcing unit 45.

[0038] The stacker 31 is provided at the downstream end of the conveying direction of the sheets P in the conveying path of the sheets P. The sheets P are stacked in the stacker 31. The stacker 31 has a base 32 and a stacker body 35. The base 32 has a stacking surface 33 on which the sheets P are supported.

[0039] As the local coordinate system of the saddle folding mechanism 30, the X direction, Y direction, and Z direction of the orthogonal coordinate system are defined as follows. The X direction is the normal direction of the stacking surface 33 of the base 32. The +X direction is the direction in which the sheet P is placed on the base 32. The +X direction is a direction that is inclined upward from the horizontal direction. The Z direction is the conveying direction of the sheet P in the saddle folding mechanism 30. The -Z direction is the direction in which the sheet P passes through the conveying path toward the stacker 31. The -Z direction is a direction that is inclined downward from the horizontal direction. The Y direction is the horizontal direction.

[0040] The base 32 is roughly plate-shaped. The base 32 can place the sheet P on the stacking surface 33 facing the +X direction. The base 32 is located on both sides of the Z direction with the folding unit 42 sandwiched therebetween. The sheet P arranged on the stacking surface 33 is supported by the stacker body 35. The stacker body 35 supports the end of the sheet P conveyed to the stacker 31 in the -Z direction. The stacker body 35 is configured to be movable in the Z direction. For example, the stacker body 35 is driven by a moving mechanism arranged in the -X direction on the base 32.

[0041] The binding unit 41 processes the sheet P at a position closer to the +Z direction than the position where the sheet P is supported by the stacker body 35. The binding unit 41 is located in the +Z direction of the folding unit 42. The binding unit 41 performs binding processing on a predetermined position of the sheet P. For example, the predetermined position of the sheet P is the center of the sheet P in the Z direction.

[0042] The folding unit 42 processes the sheet P at a position closer in the +Z direction than the position where the sheet P is supported by the stacker body 35 . The folding unit 42 folds the center portion of the sheet P in the Z direction to form a fold in the sheet P. The folding unit 42 includes a pair of folding rollers 44 and a scraper 43 .

[0043] A pair of folding rollers 44 are located in the +X direction of the base 32. The pair of folding rollers 44 are arranged in the Z direction. The rotation axis of the pair of folding rollers 44 extends in the Y direction. The pair of folding rollers 44 are driving rollers. However, one of the pair of folding rollers 44 may also be a driven roller. The pair of folding rollers 44 are respectively displaceable in the Z direction. The pair of folding rollers 44 are configured to be displaceable in the Z direction so as to approach or separate from each other. The displacements of the pair of folding rollers 44 in the Z direction are linked to each other. The pair of folding rollers 44 contact each other to form a roller gap N.

[0044] The scraper 43 is in the shape of a flat plate. The scraper 43 is parallel to the XY plane. The scraper 43 is tapered toward the +X direction. The scraper 43 can pass between the bases 32 located on both sides of the Z direction and move in the X direction. The scraper 43 cooperates with a pair of folding rollers 44 to form a fold extending in the Y direction on the sheet P by pressing the sheet P into the roller gap N.

[0045] The fold reinforcing unit 45 is located in the +X direction of the pair of folding rollers 44. The fold reinforcing unit 45 performs fold reinforcing on the fold line of the sheet P.

[0046] For example, the saddle folding mechanism 30 can perform a bookbinding process on a sheet bundle. The bookbinding process is a process of performing a bookbinding process and a saddle folding process on a sheet bundle stacked on the stacker 31.

[0047] In the bookbinding process, the sheet bundle is first bound. The stacker main body 35 moves the sheet bundle in the +Z direction so that the center of the sheet bundle in the Z direction coincides with the position of the binding unit 41. The binding unit 41 binds the sheet bundle.

[0048] Next, the sheet stack that has been subjected to the binding process is saddle-folded. The stacker body 35 moves the sheet stack in the -Z direction so that the center of the sheet stack in the Z direction coincides with the position of the scraper 43. The scraper 43 moves in the +X direction and presses the center of the sheet stack between a pair of folding rollers 44. The sheet stack is saddle-folded in the center of the Z direction. A fold extending in the Y direction is formed at the end edge of the sheet stack in the +X direction after the saddle-folding. The folding reinforcement unit 45 folds and reinforces the fold of the sheet stack. The binding process of the sheet stack is completed as described above. The bound sheet stack is discharged to the lower tray 28.

[0049] The saddle folding mechanism 30 can perform saddle folding on one or more sheets P stacked on the stacker 31 instead of stapling processing. The one or more sheets P are one sheet P or a sheet bundle. In this case, the stacker body 35 directly conveys the one or more sheets P from the stacking position to the folding unit 42. Then, similar to the saddle folding in the stapling processing, folds are formed on the one or more sheets P collectively. The folded sheets P are discharged to the lower tray 28.

[0050] like Figure 2 As shown, the sheet processing apparatus 200 includes a CPU (Central Processing Unit) 91, a memory 92, and an auxiliary storage device 93 connected via a bus. The sheet processing apparatus 200 functions as an apparatus including the stapling mechanism 20, the saddle folding mechanism 30, and the communication unit 94 by executing a program.

[0051] The CPU 91 functions as the second control unit 90 by executing programs stored in the memory 92 and the auxiliary storage device 93. The second control unit 90 controls the operation of each unit of the sheet processing apparatus 200.

[0052] The auxiliary storage device 93 is configured to include a storage device such as a magnetic hard disk device, a semiconductor storage device, etc. The auxiliary storage device 93 stores information.

[0053] The communication unit 94 is configured to include a communication interface for connecting the device to an external device. The communication unit 94 communicates with the external device via the communication interface.

[0054] The vicinity of the stack entrance door in the sheet processing apparatus 200 will be described.

[0055] Figure 4 2 is a schematic structural diagram of the stacking entrance door and the surroundings of the sheet material processing device 200 according to the embodiment. Figure 4 As shown, the sheet processing apparatus 200 includes a guide 50 , a support portion 55 , a stacker 31 , and a door 60 .

[0056] like Figure 3 As shown, the sheet processing device 200 includes a pair of first conveying rollers 71, a pair of second conveying rollers 72, and a pair of third conveying rollers 73 upstream of the guide 50 in the conveying direction of the sheet P. The sheet P fed by the paper discharge roller 19 is conveyed in the order of the pair of first conveying rollers 71, the pair of second conveying rollers 72, and the pair of third conveying rollers 73. The sheet P conveyed in the order of the pair of first conveying rollers 71, the pair of second conveying rollers 72, and the pair of third conveying rollers 73 is conveyed toward Figure 3 After the left side of the paper is bent, it faces Figure 3 Move obliquely downward to the right side of the paper. Figure 4 As shown, the guide 50 is provided downstream of the pair of third conveying rollers 73 in the conveying direction of the sheet P.

[0057] The pair of third conveying rollers 73 are arranged in the X direction. The rotation axes of the pair of third conveying rollers 73 extend in the Y direction. The pair of third conveying rollers 73 are driving rollers. However, one of the pair of third conveying rollers 73 may be a driven roller.

[0058] The guide 50 is disposed directly below the third conveying roller 73 in the +X direction. The guide 50 is located closer to the +X direction than the third conveying roller 73 in the −X direction. The sheet P conveyed by the pair of third conveying rollers 73 faces the −Z direction relative to the guide 50 .

[0059] The guide 50 has a conveying surface 51 along the conveying direction of the sheet P. The conveying surface 51 is inclined so as to be located in the -X direction as it moves toward the vertically lower side when viewed from the Y direction. The conveying surface 51 is inclined so as to be located in the -X direction as it moves from the upper end toward the vertically lower side when viewed from the Y direction, and then bends and extends toward the vertically lower side.

[0060] The support portion 55 forms a sheet conveyance path C together with the guide 50. The support portion 55 is arranged in the -X direction of the guide 50. The support portion 55 is arranged just below the third conveyance roller 73 located in the -X direction.

[0061] The support portion 55 has a facing surface 56 facing the guide 50. The facing surface 56 faces the conveying surface 51 across the conveying path C. The facing surface 56 is inclined so as to be located in the +X direction as it goes downward in the vertical direction when viewed from the Y direction.

[0062] The support portion 55 has a support surface 57 for supporting the door 60 on the side opposite to the facing surface 56. The support surface 57 is inclined so as to be located in the +X direction as it moves downward in the vertical direction when viewed from the Y direction. The support surface 57 is inclined so as to form an acute angle with the facing surface 56 when viewed from the Y direction. The shape formed by combining the facing surface 56 and the support surface 57 is V-shaped protruding toward the -Z direction when viewed from the Y direction.

[0063] The stacker 31 has a stacking surface 33 that supports the surface of the sheet P conveyed through the conveying path C. Figure 3 and Figure 4 As shown, the stacker 31 includes a base 32 and a stacker body 35 .

[0064] The base 32 includes a stacking surface 33 that supports the surface of the sheet P conveyed through the conveyance path C.

[0065] The stacker main body 35 supports the rear end in the −Z direction of the sheet P conveyed to the stacker 31. The stacker main body 35 is provided to be movable in the Z direction.

[0066] Next, the door 60 will be described.

[0067] The door 60 is configured to be able to receive the sheets P into the stacker 31 . The door 60 has a first extending portion 61 and a second extending portion 62 .

[0068] Figure 5 6 is a perspective view showing the first extension portion 61 and the second extension portion 62 of the door 60 according to the embodiment. Figure 5 As shown, a plurality of first extension portions 61 are arranged at intervals in a direction (hereinafter also referred to as "Y direction") perpendicular to the normal direction of the stacking surface 33 and the conveying direction. The second extension portion 62 is arranged to block the space between two adjacent first extension portions 61 in the Y direction.

[0069] In each of the first extension portion 61 and the second extension portion 62, a portion adjacent to the conveying path C is softer than a portion overlapping with the support portion 55. In each of the first extension portion 61 and the second extension portion 62, the portion adjacent to the conveying path C is a portion of the first extension portion 61 and the second extension portion 62 excluding a portion overlapping with the guide 50 and the support portion 55 when viewed in the vertical direction.

[0070] The first extension portion 61 and the second extension portion 62 are configured such that two portions having different lengths are arranged adjacent to each other in the Y direction. The two portions having different lengths are arranged alternately in the Y direction.

[0071] One of the two portions having different lengths (hereinafter also referred to as the "first extension portion 61") overlaps with the end of the conveying surface 51 when viewed from the stacking surface 33, and has a terminal 63 downstream in the conveying direction. The other of the two portions having different lengths (hereinafter also referred to as the "second extension portion 62") has a terminal 64 upstream of the other portion in the conveying direction when viewed from the stacking surface 33.

[0072] The positions of the ends 63 of the plurality of first extension portions 61 in the Z direction may be the same as each other. The positions of the ends 64 of the plurality of second extension portions 62 in the Z direction may be the same as each other.

[0073] The first extending portion 61 is arranged in a plurality of portions (in Figure 5 In the example, six are provided. The lengths of the plurality of first extension portions 61 in the Y direction may be different from each other. The second extension portion 62 is arranged in a plurality of spaces in the Y direction (in Figure 5 The lengths of the plurality of second extension portions 62 in the Y direction may be different from each other.

[0074] The guide 50 may also include a recessed portion 52 into which the distal end 63 of the first extension portion 61 enters. The length of the recessed portion 52 in the Y direction may be the same as the length of the first extension portion 61 in the Y direction. The guide 50 may also include a convex portion 53 between two first extension portions 61 adjacent in the Y direction. The length of the convex portion 53 in the Y direction may be the same as the interval between two first extension portions 61 adjacent in the Y direction.

[0075] like Figure 4 As shown, the conveying surface 51 and the stacking surface 33 are inclined so as to approach each other as they go downward in the vertical direction when viewed from the Y direction. The conveying surface 51 is inclined so as to be located in the -X direction as it goes downward in the vertical direction when viewed from the Y direction. The stacking surface 33 is inclined so as to be located in the +X direction as it goes downward in the vertical direction when viewed from the Y direction.

[0076] The first extension portion 61 and the second extension portion 62 are respectively formed of a resin material. The first extension portion 61 and the second extension portion 62 are respectively formed in a film shape. The first extension portion 61 and the second extension portion 62 are respectively flexible. For example, the first extension portion 61 and the second extension portion 62 may also have the same thickness as each other. For example, the first extension portion 61 and the second extension portion 62 may also have a thickness of 0.1 mm or more and 0.5 mm or less.

[0077] The first extension portion 61 and the second extension portion 62 extend along the support surface 57 when viewed from the Y direction. A portion of the second extension portion 62 that is adjacent to the conveyance path C is disposed vertically above the first extension portion 61 .

[0078] The first extension portion 61 and the second extension portion 62 are supported at a position F of the support portion 55 that is farther from the conveying path C than the end portion near the conveying path C. For example, the first extension portion 61 and the second extension portion 62 are respectively fixed at an upper end position F of the support surface 57 .

[0079] When viewed from the Y direction, the angle A formed by the contact surface 66 of the second extension portion 62 in contact with the sheet P and the conveying surface 51 is 30° or less. The angle A is the angle formed by the surface 66 of the second extension portion 62 adjacent to the conveying path C and the surface of the conveying surface 51 along the vertical direction when viewed from the Y direction. In addition, when viewed from the Y direction, the angle (contact angle) formed by the contact surface 66 of the second extension portion 62 and the sheet P passing through the conveying path C may also be 30° or less.

[0080] Next, the role played by the supporting state of the first extending portion 61 and the second extending portion 62 in the supporting portion 55 will be described.

[0081] Figure 6 This is a diagram for explaining a first effect of the supporting state of the first extending portion 61 and the second extending portion 62 in the supporting portion 55 of the embodiment. Figure 7 This is a diagram for explaining a second effect of the supporting state of the first extending portion 61 and the second extending portion 62 in the supporting portion 55 of the embodiment.

[0082] like Figure 6 As shown, when the sheet P moves from the conveying path C side to the stacker 31 side, the first extension portion 61 and the second extension portion 62 can be bent from the upper end position F of the support surface 57 to the position near the conveying path C. Figure 6 In the figure, the hollow arrow shows the direction in which the sheet P moves from the conveying path C side to the stacker 31 side, and the black arrow shows the range of flexibility in the first extension portion 61 and the second extension portion 62 (equivalent to the distance between the end 63 of the first extension portion 61 and the end fixed at the upper end position F).

[0083] like Figure 7 As shown, when the sheet P moves from the stacker 31 side to the conveying path C side, the first extending portion 61 and the second extending portion 62 are configured to bend at portions adjacent to the conveying path C. Figure 7 In the figure, the hollow arrow on the lower side of the paper shows the direction in which the sheet P moves from the stacker 31 side to the conveying path C side, the hollow arrow on the upper side of the paper shows the direction in which the sheet P moves along the first extension portion 61 and / or the second extension portion 62, and the black arrow shows the range of flexibility in the first extension portion 61 and the second extension portion 62 (equivalent to the distance between the end 64 of the second extension portion 62 and the lower end position of the support surface 57).

[0084] like Figure 6 and Figure 7 As shown, when the sheet P moves from the conveying path C side to the stacker 31 side, the first extending portion 61 and the second extending portion 62 are more likely to bend significantly than when the sheet P moves from the stacker 31 side to the conveying path C side.

[0085] Next, the position control of the stacker 31 will be described. The position control (movement control) of the stacker 31 is performed by the second control unit 90 .

[0086] For example, the sheet P moving from the conveying path C side to the stacker 31 side is Figure 3 The second control unit 90 may also move the stacker body 35 in the -Z direction to prevent the rear end of the sheet P entering the stacker 31 from contacting the door 60. For example, the stacker body 35 may also wait at the first position to receive the sheet P. The received sheet P is supported on the stacking surface 33 of the base 32. Hereinafter, the sheet supported on the stacking surface 33 is also referred to as "stacked paper".

[0087] For example, in the case of making a booklet folded more than 2 times, the second control unit 90 may also move the stacker body 35 in the +Z direction so that the ends of the second and subsequent sheets P contact the middle part (Z-direction center side) of the stacked paper. For example, the second control unit 90 may also move the stacker body 35 in the +Z direction so that the ends of the second and subsequent sheets P contact the portion of the stacked paper below the upper end. For example, the stacker body 35 may also wait at a second position closer to the +Z direction than the first position to receive the second and subsequent sheets P. The received second and subsequent sheets P are loaded on the stacked paper.

[0088] For example, when receiving the second and subsequent sheets P, the second control unit 90 may lower the stacker body 35 to the first position after the rear end of the second and subsequent sheets P enters a position below the upper end of the stacked paper. Then, the second control unit 90 may raise the stacked paper to the second position after the rear end of the entered sheet P exits the door 60. In this way, the next sheet P can be received while preventing the sheet P from being jammed or the like.

[0089] The sheet processing device 200 of the embodiment includes a guide 50, a support portion 55, a stacker 31, and a door 60. The guide 50 includes a conveying surface 51 along the conveying direction of the sheet P. The support portion 55 forms a conveying path C of the sheet P together with the guide 50. The stacker 31 includes a stacking surface 33 that supports the surface of the sheet P conveyed through the conveying path C. The door 60 is configured in a manner that can receive the sheet P to the stacker 31. The door 60 includes a first extension portion 61 and a second extension portion 62. A plurality of first extension portions 61 are arranged at intervals in the Y direction that is orthogonal to the normal direction of the stacking surface 33 and the conveying direction. The second extension portion 62 is arranged in a manner that blocks the space between two first extension portions 61 adjacent to each other in the Y direction. For example, in the case where there is a gap between two first extension portions 61 adjacent to each other in the Y direction, there is a high possibility that the end of the sheet P enters the gap when the sheet P is moved and is hooked on the end of the first extension portion 61 exposed to the gap. In contrast, in the embodiment, the second extension portion 62 blocks the space between two adjacent first extension portions 61 in the Y direction, so the possibility of the end of the sheet P being caught on the end of the first extension portion 61 when the sheet P is moved is low. Therefore, it is possible to suppress the sheet from being caught when it is moved.

[0090] In each of the first extension portion 61 and the second extension portion 62, the portion adjacent to the conveying path C is softer than the portion overlapping the support portion 55. Thus, when the sheet P is received from the conveying path C side to the stacker 31, even if the sheet end collides with the first extension portion 61 and / or the second extension portion 62, the portion adjacent to the conveying path C can be opened with a light force. Therefore, the conveying resistance when the sheet enters from the conveying path C side can be reduced.

[0091] The first extension part 61 and the second extension part 62 are configured so that two parts of different lengths are arranged adjacent to each other in the Y direction. Therefore, even if the sheet end collides with the first extension part 61 and / or the second extension part 62, it is easier to bend the part, compared with the case where two parts of the same length are arranged adjacent to each other in the Y direction. In addition, even if the parts around the door 60 have unevenness, the first extension part 61 and the second extension part 62 can be arranged along the unevenness.

[0092] One of the two parts having different lengths overlaps with the end of the conveying surface 51 when viewed from the stacking surface 33, and has a terminal 63 at the downstream of the conveying direction. The other of the two parts having different lengths has a terminal 64 at a position upstream of the other part in the conveying direction when viewed from the stacking surface 33. For example, when both of the two parts having different lengths have terminals upstream in the conveying direction relative to the end of the conveying surface 51 when viewed from the stacking surface 33, the possibility that the terminal of the sheet P is hooked on the end of the conveying surface 51 is high when the sheet P moves from the stacker 31 side to the conveying path C side. In contrast, in the embodiment, since one of the two parts having different lengths overlaps with the end of the conveying surface 51 when viewed from the stacking surface 33, and has a terminal 63 at the downstream of the conveying direction, the possibility that the terminal of the sheet P is hooked on the end of the conveying surface 51 is low even when the sheet P moves from the stacker 31 side to the conveying path C side. Therefore, it is possible to suppress the sheet P from being hooked. Furthermore, even if the end of the sheet P contacts one side when the sheet P moves from the stacker 31 side to the conveying path C side, the sheet P can be moved along the one side. Figure 4 In FIG. 1 , two hollow arrows show the direction in which the sheet P moves from the stacker 31 side to the conveying path C side.

[0093] The conveying surface 51 and the stacking surface 33 are inclined so as to approach each other as they move toward the lower side in the vertical direction when viewed from the Y direction. Thus, even if the sheet P is moved downward in the vertical direction along the inclination of the conveying surface 51 or the sheet P is moved in the vertical direction along the inclination of the stacking surface 33, it is possible to prevent the sheet P from being hooked.

[0094] Each of the first extension portion 61 and the second extension portion 62 is formed of a resin material. Thus, it is easy to ensure the flexibility of at least one of the first extension portion 61 and the second extension portion 62, compared with the case where each of the first extension portion 61 and the second extension portion 62 is formed of a metal material. Therefore, even if the sheet end collides with the first extension portion 61 and / or the second extension portion 62 when the sheet moves, it is easy to bend the portion and move the sheet P without being caught.

[0095] The first extension portion 61 and the second extension portion 62 are supported at a position F in the support portion 55 that is farther from the conveying path C than the end portion near the conveying path C. Thus, the first extension portion 61 and the second extension portion 62 are easily flexed to a greater extent than when the first extension portion 61 and the second extension portion 62 are supported at the end portion near the conveying path C of the support portion 55. Therefore, even when the sheet end collides with the first extension portion 61 and / or the second extension portion 62 when the sheet moves, the portions are easily flexed to move the sheet P without being caught.

[0096] When viewed from the Y direction, the angle A formed by the contact surface 66 of the second extending portion 62 and the sheet P and the conveying surface 51 is 30° or less. This makes it easier to suppress the sheet P from jamming than when the angle A exceeds 30°.

[0097] Next, modifications of the embodiment will be described.

[0098] Figure 8 1 is a perspective view showing the first extension portion 161 and the second extension portion 162 of the first modification. Figure 8 As shown, the first extension portion 161 and the second extension portion 162 may be formed integrally by the same component. Thus, the number of parts can be reduced compared to the case where the first extension portion 161 and the second extension portion 162 are formed by different parts. For example, the formation method of the first extension portion 161 and the second extension portion 162 can be changed according to the design specifications.

[0099] Fig. 9 1 is a perspective view showing a first extending portion 261 and a second extending portion 262 according to a second modification.

[0100] For example, Fig. 9 As shown, the first extension portion 261 and the second extension portion 262 may also be arranged so that the end edges in the Y direction overlap each other when viewed from the conveying direction of the sheet P. As a result, the possibility that the end of the sheet P is hooked on the end edge of the first extension portion 261 and / or the second extension portion 262 when the sheet P is moved is low. Therefore, it is possible to suppress the hooking of the sheet when it is moved. For example, in the first extension portion 261 and the second extension portion 262, the arrangement of the end edges in the orthogonal directions can be changed according to the design specifications.

[0101] In each of the first extension and the second extension of the embodiment, the portion adjacent to the conveying path is softer than the portion overlapping with the support portion. In contrast, in each of the first extension and the second extension, the portion adjacent to the conveying path may be harder than the portion overlapping with the support portion. For example, the portion adjacent to the conveying path of at least one of the first extension and the second extension may be softer than the portion overlapping with the support portion. For example, in each of the extensions, the softness of the portion adjacent to the conveying path may be changed according to the design specifications.

[0102] The first extension portion and the second extension portion of the embodiment are configured in such a way that two portions having different lengths are arranged adjacent to each other in an orthogonal direction. In contrast, the first extension portion and the second extension portion may be configured in such a way that two portions having the same lengths are arranged adjacent to each other in an orthogonal direction. For example, the configuration of the first extension portion and the second extension portion may be changed according to design specifications.

[0103] One of the two parts of the embodiment with different lengths overlaps with the end of the conveying surface when viewed from the stacking surface and has a terminal at the downstream of the conveying direction. The other of the two parts with different lengths has a terminal at the upstream of the conveying direction more than one of the two parts when viewed from the stacking surface. In contrast, it can also be that the two parts with different lengths have a terminal upstream of the conveying direction relative to the end of the conveying surface when viewed from the stacking surface. For example, the positional relationship of the terminal of each part relative to the end of the conveying surface when viewed from the stacking surface can be changed according to the design specifications.

[0104] The conveying surface and the stacking surface of the embodiment are inclined in a manner that they approach each other as they move toward the lower side of the vertical direction when viewed from an orthogonal direction. In contrast, the conveying surface and the stacking surface may also be inclined in a manner that they approach each other as they move toward the upper side of the vertical direction when viewed from an orthogonal direction. For example, the conveying surface and the stacking surface may be configured to be parallel to each other when viewed from an orthogonal direction. For example, the configuration of the conveying surface and the stacking surface observed from an orthogonal direction may be changed according to design specifications.

[0105] The first extension portion and the second extension portion of the embodiment are respectively formed of a resin material. In contrast, the first extension portion and the second extension portion may also be respectively formed of a metal material. For example, at least one of the first extension portion and the second extension portion may be formed of a resin material. For example, the forming material of each extension portion can be changed according to the design specifications.

[0106] The first extension portion and the second extension portion of the embodiment are supported at a position in the support portion that is farther from the conveying path than the end portion adjacent to the conveying path. In contrast, the first extension portion and the second extension portion may also be supported at the end portion adjacent to the conveying path in the support portion. For example, the support method of the first extension portion and the second extension portion in the support portion can be changed according to the design specifications.

[0107] In an embodiment, when viewed from an orthogonal direction, the angle formed by the contact surface of the second extension portion in contact with the sheet and the conveying surface is less than 30°. In contrast, the angle formed by the contact surface and the conveying surface when viewed from an orthogonal direction may also exceed 30°. For example, when viewed from an orthogonal direction, the angle formed by the contact surface of at least one of the first extension portion and the second extension portion in contact with the sheet and the conveying surface may also be less than 30°. For example, the angle formed by the contact surface and the conveying surface when viewed from an orthogonal direction can be changed according to design specifications.

[0108] According to at least one embodiment described above, the door has a first extension portion and a second extension portion. A plurality of first extension portions are arranged at intervals in directions orthogonal to the normal direction of the stacking surface and the conveying direction. The second extension portion is arranged in a manner to block between two adjacent first extension portions in the orthogonal direction. Thus, it is possible to suppress hooking of the sheet when it moves.

[0109] Although several embodiments of the present invention have been described, these embodiments are only presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other ways, and various omissions, substitutions, and changes can be made without departing from the scope of the purpose of the invention. These embodiments and their variations are included in the scope and purpose of the invention, and are also included in the invention described in the claims and their equivalents.

[0110] (Appendix 1)

[0111] A sheet material processing device, comprising:

[0112] a guide having a conveying surface along a conveying direction of the sheet;

[0113] a support portion, forming a conveying path for the sheet together with the guide member;

[0114] a stacker having a stacking surface that supports a surface of the sheet conveyed through the conveying path; and

[0115] The door is constructed in a manner capable of receiving the sheet into the stacker, and has a second extension portion and a plurality of first extension portions, wherein the plurality of first extension portions are arranged at intervals in directions orthogonal to the normal direction of the stacking surface and the conveying direction, and the second extension portion is arranged in a manner blocking between two adjacent first extension portions in the orthogonal direction.

[0116] (Appendix 2)

[0117] The sheet material processing device according to Appendix 1, wherein:

[0118] In at least one of the first extending portion and the second extending portion, a portion adjacent to the transport path is softer than a portion overlapping the support portion.

[0119] (Appendix 3)

[0120] The sheet material processing device according to Appendix 1 or 2, wherein:

[0121] The first extension portion and the second extension portion are configured such that two portions having different lengths are arranged adjacent to each other in the orthogonal direction.

[0122] (Appendix 4)

[0123] The sheet material processing device according to Appendix 3, wherein:

[0124] One of the two parts of different lengths overlaps with the end of the conveying surface when viewed from the stacking surface and has a terminal end downstream in the conveying direction, and the other has a terminal end upstream of the one part in the conveying direction when viewed from the stacking surface.

[0125] (Appendix 5)

[0126] A sheet material processing device according to any one of Appendixes 1 to 4, wherein:

[0127] The conveying surface and the stacking surface are inclined so as to approach each other as they go downward in the vertical direction when viewed from the orthogonal direction.

[0128] (Appendix 6)

[0129] A sheet material processing device according to any one of Appendixes 1 to 5, wherein:

[0130] At least one of the first extension portion and the second extension portion is formed of a resin material.

[0131] (Appendix 7)

[0132] A sheet material processing device according to any one of Appendixes 1 to 6, wherein:

[0133] The first extending portion and the second extending portion are supported at positions of the supporting portion that are farther from the conveying path than an end portion adjacent to the conveying path.

[0134] (Appendix 8)

[0135] A sheet material processing device according to any one of Appendixes 1 to 7, wherein:

[0136] The first extension portion and the second extension portion are integrally formed by a same component.

[0137] (Appendix 9)

[0138] A sheet material processing device according to any one of Appendixes 1 to 8, wherein:

[0139] The first extending portion and the second extending portion are arranged so that their edges in the orthogonal direction overlap each other when viewed in the conveying direction.

[0140] (Appendix 10)

[0141] A sheet material processing device according to any one of Appendices 1 to 9, wherein:

[0142] When viewed from the orthogonal direction, an angle formed by a contact surface of at least one of the first extending portion and the second extending portion, which contacts the sheet, and the conveying surface is 30° or less.

Claims

1. A sheet material processing device, characterized in that: have: a guide having a conveying surface along a conveying direction of the sheet; a support portion, forming a conveying path for the sheet together with the guide member; a stacker having a stacking surface that supports a surface of the sheet conveyed through the conveying path; as well as The door is constructed in a manner capable of receiving the sheet into the stacker, and has a second extension portion and a plurality of first extension portions, wherein the plurality of first extension portions are arranged at intervals in directions orthogonal to the normal direction of the stacking surface and the conveying direction, and the second extension portion is arranged in a manner blocking between two adjacent first extension portions in the orthogonal direction.

2. The sheet material processing device according to claim 1, characterized in that: In at least one of the first extending portion and the second extending portion, a portion adjacent to the transport path is softer than a portion overlapping the support portion.

3. The sheet material processing device according to claim 1 or 2, characterized in that: The first extension portion and the second extension portion are configured such that two portions having different lengths are arranged adjacent to each other in the orthogonal direction.

4. The sheet material processing device according to claim 3, characterized in that: One of the two parts of different lengths overlaps with the end of the conveying surface when viewed from the stacking surface and has a terminal end downstream in the conveying direction, and the other has a terminal end upstream of the one part in the conveying direction when viewed from the stacking surface.

5. The sheet material processing device according to claim 1 or 2, characterized in that: The conveying surface and the stacking surface are inclined so as to approach each other as they go downward in the vertical direction when viewed from the orthogonal direction.

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