JP5669011B2 - Paper post-processing device - Google Patents

Paper post-processing device Download PDF

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JP5669011B2
JP5669011B2 JP2011008499A JP2011008499A JP5669011B2 JP 5669011 B2 JP5669011 B2 JP 5669011B2 JP 2011008499 A JP2011008499 A JP 2011008499A JP 2011008499 A JP2011008499 A JP 2011008499A JP 5669011 B2 JP5669011 B2 JP 5669011B2
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Prior art keywords
conveyance path
sheet
sheet bundle
reference member
fence
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JP2012148854A (en
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永康 吉田
永康 吉田
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Ricoh Co Ltd
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Ricoh Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H45/00—Folding thin material
    • B65H45/12—Folding articles or webs with application of pressure to define or form crease lines
    • B65H45/18—Oscillating or reciprocating blade folders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H31/00—Pile receivers
    • B65H31/30—Arrangements for removing completed piles
    • B65H31/3036—Arrangements for removing completed piles by gripping the pile
    • B65H31/3045—Arrangements for removing completed piles by gripping the pile on the outermost articles of the pile for clamping the pile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00—Parts for holding the handled material
    • B65H2405/50—Gripping means
    • B65H2405/52—Gripping means reciprocating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/10—Handled articles or webs
    • B65H2701/18—Form of handled article or web
    • B65H2701/182—Piled package
    • B65H2701/1829—Bound, bundled or stapled stacks or packages
    • B65H2701/18292—Stapled sets of sheets

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pile Receivers (AREA)
  • Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
  • Registering Or Overturning Sheets (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)

Description

本発明は、用紙に後処理を行う用紙後処理装置に関するものである。   The present invention relates to a sheet post-processing apparatus that performs post-processing on a sheet.

この種の用紙後処理装置として、画像形成装置から排出された複数の用紙を、真っ直ぐな搬送路である直線搬送路中に設けられた端部基準部材であるストッパーに突き当てて各用紙の端部位置を揃え、所定枚数揃えた後の用紙束に綴じ手段であるステイプラで綴じ処理を行うものがある（特許文献１など）。   As this type of sheet post-processing apparatus, a plurality of sheets discharged from the image forming apparatus are abutted against a stopper which is an end reference member provided in a straight conveyance path, which is a straight conveyance path, and the end of each sheet. There are some which perform binding processing with a stapler which is a binding unit on a sheet bundle after aligning the positions and aligning a predetermined number of sheets (for example, Patent Document 1).

用紙束の端部を綴じる端綴じ処理では、ストッパーに突き当てて揃えた用紙束の下縁部の適所をステイプラで綴じ針により綴じることで端綴じが施される。一方、用紙束の中央部を綴じる中綴じ処理では、ストッパーに突き当てて揃えた用紙束の中央部の適所をステイプラで綴じ針により綴じることで中綴じが施される。   In the end binding process for binding the end portion of the sheet bundle, the end binding is performed by binding the appropriate position of the lower edge portion of the sheet bundle that is abutted against the stopper with a staple with a staple. On the other hand, in the saddle stitching process for binding the center portion of the sheet bundle, saddle stitching is performed by binding the appropriate portion of the center portion of the sheet bundle that is abutted against the stopper with a staple.

ステイプラの位置が固定されている構成では、直線搬送路上で用紙束に端綴じ処理を行う場合、少なくとも用紙最大サイズの直線搬送路があれば良いが、中綴じ処理を行う場合には、少なくとも用紙最大サイズの１．５倍の直線搬送路が必要になる。このように、中綴じ処理では端綴じ処理に比べて直線搬送路を長く要する。そのため、一般に長い搬送路を無駄なスペース無く配置するために、搬送路の途中にカーブを設けることが行われている。   In the configuration in which the position of the stapler is fixed, when performing the edge binding process on the bundle of sheets on the linear conveyance path, it is only necessary to have a linear conveyance path of at least the maximum sheet size, but when performing the saddle stitching process, at least the sheet A straight conveyance path 1.5 times the maximum size is required. Thus, the saddle stitching process requires a longer straight conveyance path than the edge stitching process. Therefore, in order to arrange a long conveyance path without wasteful space, a curve is provided in the middle of the conveyance path.

しかしながら、搬送路の湾曲形状によって用紙束の内周側と外周側との曲率の差により用紙束の端部がずれてしまう。そのため、ストッパーに用紙を突き当てて用紙端部の位置が揃えられた用紙束を湾曲搬送路内で中綴じすると、用紙束がずれた状態で中綴じされるといった問題が生じる。   However, due to the curved shape of the conveyance path, the edge of the sheet bundle is shifted due to the difference in curvature between the inner peripheral side and the outer peripheral side of the sheet bundle. For this reason, when a sheet bundle in which the sheet is abutted against the stopper and the end positions of the sheets are aligned is saddle-stitched in the curved conveyance path, a problem occurs in that the sheet bundle is saddle-stitched.

本発明は以上の問題点に鑑みなされたものであり、その目的は、中綴じ処理された用紙束端部のずれを低減できる用紙後処理装置を提供することである。   The present invention has been made in view of the above problems, and an object of the present invention is to provide a sheet post-processing apparatus that can reduce the deviation of the edge portion of the sheet bundle subjected to the saddle stitching process.

上記目的を達成するために、請求項１の発明は、略直線状の直線搬送路と、前記直線搬送路の用紙搬送方向端部と繋がっており湾曲状の湾曲搬送路と、前記直線搬送路に送られてきた用紙の端部を自身の突き当て面に突き当てて用紙束の用紙搬送方向の位置決めを行う端部基準部材と、前記端部基準部材により位置決めされた前記直線搬送路上の用紙束を挟み持ち、前記直線搬送路から前記湾曲搬送路に向かって用紙束を移動させるクランプ手段と、用紙束に綴じ処理を行う綴じ手段とを備え、前記クランプ手段により用紙束の少なくとも一部を前記直線搬送路から前記湾曲搬送路まで移動させて、前記綴じ手段により用紙束に中綴じを行う用紙後処理装置において、用紙束の前記端部基準部材側の端面に対する前記端部基準部材の角度を調整する角度調整手段を有し、前記湾曲搬送路は下方に向かって湾曲しており、前記端部基準部材の突き当て面に用紙束の端面が突き当たった際に、用紙束の端部基準部材側の端面と用紙束の下面とで成す角が鋭角となるように、前記角度調整手段が前記端部基準部材の角度を調整することを特徴とするものである。
また、請求項２の発明は、請求項１の用紙後処理装置において、上記端部基準部材は上記クランプ手段と一体で移動可能に構成されており、前記クランプ手段の移動によって前記端部基準部材に接触し該端部基準部材を傾ける傾け部材を有し、前記傾け部材に対する前記端部基準部材の接触量を調整することにより該端部基準部材の傾きを調整することを特徴とするものである。
また、請求項３の発明は、請求項２の用紙後処理装置において、上記端部基準部材の傾きを所定側に規制するバネ部材を有することを特徴とするものである。
また、請求項４の発明は、請求項２の用紙後処理装置において、上記角度調整手段は歯車状のピニオンを有し、上記傾け部材が歯を切ったラックになっており、上記クランプ手段の移動とともに前記ピニオンと前記ラックとが噛み合い該ピニオンが回転することで上記端部基準部材の角度が調整されることを特徴とするものである。
また、請求項５の発明は、請求項２の用紙後処理装置において、上記傾け部材が搬送経路に沿ったなだらかな傾斜をもつ形状であり、上記端部基準部材が前記傾け部材の傾斜に乗り上げ該傾斜に沿って移動することにより前記端部基準部材の傾きを調整することを特徴とするものである。
また、請求項６の発明は、請求項１の用紙後処理装置において、上記端部基準部材に接するように設けられた偏心カムと、前記偏心カムを回転させるモータとを有しており、前記モータによって前記偏心カムを回転させて前記端部基準部材の角度を調整することを特徴とするものである。
また、請求項７の発明は、請求項１の用紙後処理装置において、上記端部基準部材に設けられた第１ギヤと、前記第１ギヤと噛み合う第２ギヤと、前記第２ギヤを回転させるモータとを有しており、前記モータによって前記第２ギヤを回転させて前記第１ギヤを回すことにより前記端部基準部材を回転させて該端部基準部材の角度を調整することを特徴とするものである。 In order to achieve the above object, the invention of claim 1 is characterized in that a substantially linear straight conveyance path, a curved conveyance path connected to an end of the linear conveyance path in the paper conveyance direction, and the linear conveyance path are provided. An end reference member for positioning the end of the sheet sent to the end of the sheet against its own abutment surface in the sheet transport direction, and the sheet on the linear transport path positioned by the end reference member A clamping unit that holds the bundle and moves the sheet bundle from the linear conveyance path toward the curved conveyance path; and a binding unit that performs a binding process on the sheet bundle, and at least a part of the sheet bundle is formed by the clamping unit. In the sheet post-processing apparatus that moves from the linear conveyance path to the curved conveyance path and performs saddle stitching on the sheet bundle by the binding unit, the angle of the end reference member with respect to the end surface of the sheet bundle on the end reference member side Adjust To have a angle adjusting means, said curved conveying path is curved downward, when the end face of the sheet bundle abuts against the abutment surface of the end reference members, end reference member side of the sheet bundle The angle adjusting means adjusts the angle of the end reference member so that the angle formed by the end surface of the sheet and the lower surface of the sheet bundle is an acute angle .
According to a second aspect of the present invention, in the paper post-processing apparatus of the first aspect, the end reference member is configured to be movable integrally with the clamp means, and the end reference member is moved by the movement of the clamp means. A tilt member that tilts the end reference member and adjusts the tilt of the end reference member by adjusting the contact amount of the end reference member with respect to the tilt member. is there.
According to a third aspect of the present invention, in the paper post-processing apparatus according to the second aspect of the present invention, the sheet post-processing apparatus further includes a spring member that restricts the inclination of the end reference member to a predetermined side.
According to a fourth aspect of the present invention, in the paper post-processing apparatus of the second aspect , the angle adjusting means has a gear-like pinion, the inclined member is a rack with teeth, and the clamping means The angle of the end reference member is adjusted by the pinion and the rack meshing with each other and the pinion rotating.
According to a fifth aspect of the present invention, in the paper post-processing apparatus according to the second aspect , the inclined member has a shape having a gentle inclination along the transport path, and the end reference member rides on the inclined member. The inclination of the end reference member is adjusted by moving along the inclination.
The invention according to claim 6 is the paper post-processing apparatus according to claim 1 , further comprising an eccentric cam provided in contact with the end reference member, and a motor for rotating the eccentric cam. The eccentric cam is rotated by a motor to adjust the angle of the end reference member.
According to a seventh aspect of the present invention, in the paper post-processing apparatus of the first aspect, the first gear provided on the end reference member, the second gear meshing with the first gear, and the second gear are rotated. A motor that rotates the second reference gear and rotates the first reference gear to rotate the end reference member to adjust the angle of the end reference member. It is what.

本発明においては、角度調整手段により用紙束の端部基準部材側の端面に対して角度を調整して端部基準部材を傾けることができる。これにより、直線搬送路から曲線搬送路に向かって搬送し湾曲搬送路上に用紙束の少なくとも一部がある際に、用紙束の端部に生じ得るずれとは逆のずれを予め生じさせた状態で、用紙束をクランプ手段で挾持することができる。よって、クランプ手段で用紙束を直線搬送路から曲線搬送路に向かって搬送し、用紙束の少なくとも一部が曲線搬送路上にある状態で綴じ手段により用紙束の中綴じを行ったときの用紙束の端部のずれを低減させることができる。   In the present invention, the end reference member can be inclined by adjusting the angle with respect to the end surface on the end reference member side of the sheet bundle by the angle adjusting means. Thus, when there is at least a part of the sheet bundle that is conveyed from the straight conveyance path toward the curved conveyance path and on the curved conveyance path, a deviation that is opposite to the deviation that may occur at the end of the sheet bundle has been generated in advance. Thus, the sheet bundle can be held by the clamping means. Therefore, the sheet bundle is conveyed when the sheet bundle is conveyed from the straight conveyance path toward the curved conveyance path by the clamping means, and the sheet bundle is saddle-stitched by the binding means in a state where at least a part of the sheet bundle is on the curved conveyance path. The shift of the end of the can be reduced.

以上、本発明によれば、中綴じ処理された用紙束端部のずれを低減できるという優れた効果がある。   As described above, according to the present invention, there is an excellent effect that the shift of the edge portion of the sheet bundle subjected to the saddle stitching process can be reduced.

（ａ）Ｂ５用紙の用紙束を揃える場合での突き当てフェンスを角度調整機構により角度を調整して傾けた状態を示す図、（ｂ）Ａ４用紙の用紙束を揃える場合での突き当てフェンスを角度調整機構により角度を調整して傾けた状態を示す図、（ｃ）Ａ３用紙の用紙束を揃える場合での突き当てフェンスを角度調整機構により角度を調整して傾けた状態を示す図。(A) The figure which shows the state which tilted the abutting fence in the case of aligning the sheet bundle of B5 paper by adjusting the angle by the angle adjusting mechanism, (b) The abutment fence in the case of aligning the sheet bundle of A4 paper The figure which shows the state inclined by adjusting an angle with an angle adjustment mechanism, (c) The figure which shows the state which adjusted the angle with the angle adjustment mechanism, and inclined the abutment fence in the case of aligning the paper bundle of A3 paper. 実施形態に係る用紙後処理装置の概略構成図。1 is a schematic configuration diagram of a sheet post-processing apparatus according to an embodiment. （ａ）ステイプラで端綴じのみを行う構成の模式図、（ｂ）ステイプラで中綴じと端綴じとを兼用して行う構成の模式図。(A) Schematic diagram of a configuration for performing only end binding with a stapler, (b) Schematic diagram of a configuration for performing both saddle stitching and end binding with a stapler. （ａ）用紙束の全てが直線搬送路上に位置する状態で用紙束を中綴じする構成の場合の模式図、（ｂ）用紙束が直線搬送路上と曲線搬送路上とに位置する状態で用紙束を中綴じする構成の場合の模式図。(A) Schematic diagram of a configuration in which the sheet bundle is saddle-stitched in a state where all the sheet bundles are located on the straight conveyance path, and (b) the sheet bundle in a state where the sheet bundle is located on the straight conveyance path and the curved conveyance path. The schematic diagram in the case of the structure which carries out saddle stitching. 用紙サイズによって曲線部分を占める用紙の長さが異なることについて説明する図。The figure explaining that the length of the paper which occupies a curve part changes with paper sizes. クランプ搬送機構について説明する図。The figure explaining a clamp conveyance mechanism. クランプ圧解除部材について説明する図。The figure explaining a clamp pressure release member. 湾曲搬送路の接線と平行になるようにクランプ可動フェンスが移動する図。The figure which a clamp movable fence moves so that it may become parallel to the tangent of a curved conveyance path. （ａ）クランプ可動フェンスが直線搬送路にある状態を示す図、（ｂ）クランプ可動フェンスが直線搬送路から湾曲搬送路へ入り始めた状態を示す図、（ｃ）クランプ可動フェンスが湾曲搬送路にある状態を示す図。(A) The figure which shows the state which a clamp movable fence exists in a linear conveyance path, (b) The figure which shows the state which the clamp movable fence began to enter into a curved conveyance path, (c) The clamp movable fence is a curved conveyance path FIG. 図９（ａ）、図９（ｂ）、図９（ｃ）を同一図面上で示した図。The figure which showed Drawing 9 (a), Drawing 9 (b), and Drawing 9 (c) on the same drawing. （ａ）直線搬送路でスタックされた用紙束をクランプ可動フェンスで摘んで搬送する状態を示す模式図、（ｂ）用紙束の綴じ針から用紙束端部までの距離の説明に用いる図、（ｃ）用紙束端部のずれ状態を示す模式図。(A) A schematic diagram showing a state in which a bundle of sheets stacked on a straight conveyance path is picked and conveyed by a clamp movable fence, (b) a diagram used for explaining the distance from the binding needle of the bundle of sheets to the end of the bundle of sheets. c) A schematic diagram showing a deviation state of the end portion of the sheet bundle. 用紙サイズによって用紙束端部のずれが異なる説明図。FIG. 5 is an explanatory diagram in which the deviation of the edge of the sheet bundle varies depending on the sheet size. 突き当てフェンスの角度を調整する角度調整機構として、突き当てフェンスと突き当たることにより突き当てフェンスを回動させて傾ける傾け部材を用いた場合の模式図。The schematic diagram at the time of using the inclination member which rotates and makes an abutment fence rotate as an angle adjustment mechanism which adjusts the angle of an abutment fence. （ａ）Ｂ５用紙の用紙束を揃える場合での傾け部材に突き当てフェンスを突き当てて傾けた状態を示す図、（ｂ）Ａ４用紙の用紙束を揃える場合での傾け部材に突き当てフェンスを突き当てて傾けた状態を示す図、（ｃ）Ａ３用紙の用紙束を揃える場合での傾け部材に突き当てフェンスを突き当てて傾けた状態を示す図。(A) A diagram showing a state in which the abutting fence is abutted against the inclined member when aligning the sheet bundle of B5 sheets, and (b) the abutting fence is applied to the inclined member when aligning the sheet bundle of A4 sheets. The figure which shows the state inclined by abutting, (c) The figure which shows the state inclined by abutting fence against the inclination member in the case of aligning the paper bundle of A3 paper. （ａ）突き当てフェンスと傾け部材との接触時におけるねじりコイルバネの状態を示す模式図、（ｂ）突き当てフェンスと傾け部材との非接触時におけるねじりコイルバネの状態を示す模式図、（ｃ）突き当てフェンスと傾け部材との接触時におけるクランプ機構の状態を示す模式図、（ｄ）突き当てフェンスと傾け部材との非接触時におけるクランプ機構の状態を示す模式図、（ｅ）用紙揃え時におけるクランプ機構の状態を示す模式図、（ｆ）用紙束をクランプ可動フェンスで掴んで搬送するときのクランプ機構の模式図。(A) Schematic diagram showing the state of the torsion coil spring at the time of contact between the abutment fence and the inclined member, (b) Schematic diagram showing the state of the torsion coil spring at the time of non-contact between the abutment fence and the inclined member, (c) Schematic diagram showing the state of the clamp mechanism when the abutting fence and the inclined member are in contact, (d) Schematic diagram showing the state of the clamp mechanism when the abutting fence and the inclined member are not in contact, (e) When paper is aligned The schematic diagram which shows the state of the clamp mechanism in (f), The schematic diagram of a clamp mechanism when grasping and conveying a paper bundle with a clamp movable fence. （ａ）ラックと噛み合っていない位置にクランプ可動フェンスのピニオンが位置する状態を示す模式図、（ｂ）クランプ可動フェンスを移動させてピニオンがラックに乗り上げたときの状態を示す模式図。（ｃ）ラック上におけるピニオンの位置を用紙サイズに応じた位置に変化させる状態を示す模式図、（ｄ）突き当てフェンスを傾けクランプ可動フェンスを開いた状態を示す模式図、（ｅ）用紙束をクランプ可動フェンスで掴んだときの状態を示す模式図、（ｄ）クランプ可動フェンスで用紙束を搬送している状態を示す模式図、（ｆ）クランプ可動フェンスで用紙束を搬送している状態を示す模式図、（ｇ）クランプ可動フェンスで用紙束を搬送している状態を示す模式図、（ｈ）ピニオンがラック上から降りたときの状態を示す模式図。(A) The schematic diagram which shows the state in which the pinion of a clamp movable fence is located in the position which is not meshing with a rack, (b) The schematic diagram which shows the state when a pinion rides on a rack by moving a clamp movable fence. (C) A schematic diagram showing a state in which the position of the pinion on the rack is changed to a position corresponding to the paper size, (d) a schematic diagram showing a state in which the abutting fence is tilted and the clamp movable fence is opened, (e) a paper bundle Schematic diagram showing the state when the paper is gripped by the clamp movable fence, (d) Schematic diagram showing the state where the paper bundle is being conveyed by the clamp movable fence, (f) State where the paper bundle is being conveyed by the clamp movable fence (G) The schematic diagram which shows the state which is conveying the paper bundle with a clamp movable fence, (h) The schematic diagram which shows a state when a pinion descends from on a rack. （ａ）Ｂ５用紙の用紙束を揃える場合における傾け部材に対する突き当てフェンスの乗り上げ位置を示す図、（ｂ）Ａ４用紙の用紙束を揃える場合における傾け部材に対する突き当てフェンスの乗り上げ位置を示す図、（ｃ）Ａ３用紙の用紙束を揃える場合における傾け部材に対する突き当てフェンスの乗り上げ位置を示す図。(A) The figure which shows the abutment position of the abutting fence with respect to the inclination member when aligning the sheet bundle of B5 sheets, (b) The figure which shows the abutment position of the abutment fence with respect to the inclination member when aligning the sheet bundle of A4 sheets. (C) The figure which shows the riding position of the butting fence with respect to the inclination member in aligning the paper bundle of A3 paper. 偏心して取り付けられた円形のカムをモータで回して突き当てフェンスを傾けて角度調整する場合の模式図。The schematic diagram in the case of rotating the circular cam attached eccentrically with a motor, and tilting a butting fence and adjusting an angle. モータで歯車を回して突き当てフェンスを回転させて角度調整する場合の模式図。The schematic diagram in the case of rotating a gear with a motor and rotating an abutment fence and adjusting an angle.

以下、本発明を画像形成装置から排出された用紙に後処理として折り処理などをおこなう用紙後処理装置に適用した一実施形態について説明する。なお、本実施形態の説明で用いる図で用紙束の用紙間に隙間があるものもあるが、これは用紙束の各用紙の端部の位置などをわかり易くするため図示を簡略化したためであり、実際には各用紙が接触し合って積み重なっている。   Hereinafter, an embodiment in which the present invention is applied to a sheet post-processing apparatus that performs folding processing or the like as post-processing on a sheet discharged from an image forming apparatus will be described. In the drawings used in the description of the present embodiment, there is a gap between the sheets of the sheet bundle, but this is because the illustration is simplified for easy understanding of the position of the end of each sheet of the sheet bundle, Actually, the sheets are in contact with each other and stacked.

図２は本実施形態に係る用紙後処理装置１００の概略構成図である。用紙後処理装置１００は、図示しない画像形成装置の側方に設置されており、用紙後処理装置１００の側壁に設けられた受入口８０から画像形成装置により画像形成された用紙Ｐを装置内に受け入れ、用紙Ｐに折り処理などを施すものである。   FIG. 2 is a schematic configuration diagram of the sheet post-processing apparatus 100 according to the present embodiment. The sheet post-processing apparatus 100 is installed on the side of an image forming apparatus (not shown), and the sheet P on which an image has been formed by the image forming apparatus from a receiving port 80 provided on the side wall of the sheet post-processing apparatus 100. The paper P is received and folded on the paper P.

用紙後処理装置１００内には、受入口８０を通して装置内に用紙Ｐを導き入れる導入搬送路１と、用紙Ｐを排紙トレイ２２へ搬送するための搬送路２と、用紙Ｐを中間積載するための直線搬送路３と、直線搬送路３で用紙長センター部が中綴じされた用紙束を用紙折り部へと搬送するための湾曲搬送路４とが形成されている。   In the paper post-processing apparatus 100, an introduction conveyance path 1 for introducing the paper P into the apparatus through the receiving port 80, a conveyance path 2 for conveying the paper P to the paper discharge tray 22, and the paper P are intermediately stacked. And a curved conveyance path 4 for conveying the sheet bundle in which the sheet length center portion is saddle-stitched in the linear conveyance path 3 to the sheet folding portion.

導入搬送路１の受入口８０付近には、入口ローラ対１０と入口センサ１３とが配置されおり、入口センサ１３によって用紙Ｐが受入口８０から用紙後処理装置１００内に搬入されたことを検知し、入口ローラ対１０によって用紙Ｐを導入搬送路１の用紙搬送方向下流側に向けて搬送する。   An inlet roller pair 10 and an inlet sensor 13 are disposed in the vicinity of the inlet 80 of the introduction conveyance path 1, and the inlet sensor 13 detects that the paper P has been carried into the paper post-processing apparatus 100 from the inlet 80. The pair of entrance rollers 10 conveys the sheet P toward the downstream side of the introduction conveyance path 1 in the sheet conveyance direction.

導入搬送路１の入口ローラ対１０よりも用紙搬送方向下流側には、用紙Ｐに孔をあける用紙穿孔ユニット２００が配置されており、さらに用紙穿孔ユニット２００よりも用紙搬送方向下流側には搬送ローラ対１１と搬送ローラ対１２とが配置され、これらを経て用紙Ｐは導入搬送路１から直線搬送路３に搬送される。なお、搬送ローラ対１２は図示しないシフト機構によって用紙後処理装置１００内で上下方向に一定量移動可能になっている。   A paper punching unit 200 for punching holes in the paper P is disposed downstream of the inlet roller pair 10 in the introduction transport path 1 and further transported downstream of the paper punching unit 200 in the paper transport direction. A roller pair 11 and a conveyance roller pair 12 are arranged, and the sheet P is conveyed from the introduction conveyance path 1 to the linear conveyance path 3 through these. The transport roller pair 12 can be moved in the vertical direction within the sheet post-processing apparatus 100 by a shift mechanism (not shown).

また、導入搬送路１の搬送ローラ対１１よりも用紙搬送方向下流側には、用紙Ｐの搬送先を搬送搬送路２または直線搬送路３に切り換える分岐爪２０が設けられている。搬送路２は導入搬送路１を搬送される用紙Ｐを排紙トレイ２２へ搬送するための経路であり、導入搬送路１から分岐爪２０で進行方向を変えられた用紙Ｐが搬送路２を通り、搬送路２の用紙搬送方向下流側終端部分に設けられた排出ローラ２１によって排出口８１から排紙トレイ２２へと搬送される。   Further, a branching claw 20 for switching the conveyance destination of the paper P to the conveyance conveyance path 2 or the straight conveyance path 3 is provided on the downstream side of the introduction conveyance path 1 with respect to the conveyance roller pair 11 in the sheet conveyance direction. The conveyance path 2 is a path for conveying the sheet P conveyed on the introduction conveyance path 1 to the paper discharge tray 22. The sheet P whose traveling direction is changed by the branching claw 20 from the introduction conveyance path 1 passes through the conveyance path 2. As a result, the paper is conveyed from the discharge port 81 to the paper discharge tray 22 by the discharge roller 21 provided at the downstream end portion of the conveyance path 2 in the paper conveyance direction.

直線搬送路３には搬送ローラ３３や従動ローラ３１や排紙センサ３５などが配置されており、ソートモード時は、導入搬送路１の搬送ローラ対１２が、図示しない駆動手段によりシフト機構によって用紙Ｐを挾持搬送中に下方（搬送方向と直角方向）に一定量移動することにより、搬送ローラ対１２に挾持されている用紙Ｐの位置も下方に一定量シフトする。これにより、導入搬送路１から直線搬送路３に用紙Ｐが導かれ、その用紙Ｐが搬送ローラ３３と従動ローラ３１とによって挾持搬送されることにより、用紙Ｐが排出口８２から排紙トレイ３２に排出され順次スタックされていく。   In the straight conveyance path 3, a conveyance roller 33, a driven roller 31, a paper discharge sensor 35, and the like are arranged. In the sort mode, the conveyance roller pair 12 in the introduction conveyance path 1 is driven by a shift mechanism by a driving mechanism (not shown). By moving a certain amount of P downward (perpendicular to the conveying direction) during nipping and conveying, the position of the sheet P held by the conveying roller pair 12 is also shifted downward by a certain amount. As a result, the paper P is guided from the introduction transport path 1 to the linear transport path 3, and the paper P is nipped and transported by the transport roller 33 and the driven roller 31, whereby the paper P is discharged from the discharge port 82 to the discharge tray 32. Are discharged and stacked one after another.

なお、従動ローラ３１は搬送ローラ３３に対して接離するように揺動可能に設けられており、搬送ローラ３３に対する従動ローラ３１の接離動作で、搬送ローラ３３と従動ローラ３１とで用紙Ｐを挟持し搬送して排紙トレイ３２に排出可能な閉状態と、搬送ローラ３３と従動ローラ３１とで用紙Ｐを挟持しない開状態とを、選択的に取り得るようになっている。導入搬送路１の搬送ローラ対１２による用紙Ｐのシフト動作によって導入搬送路１から直線搬送路３に用紙Ｐを導くときには搬送ローラ３３と従動ローラ３１とを離間させて開状態としておき、搬送ローラ対１２による用紙Ｐのシフト動作が完了した後、搬送ローラ３３と従動ローラ３１とを接触させて閉状態とし用紙Ｐを搬送ローラ３３と従動ローラ３１とで挟持搬送し排出口８２から排紙トレイ３２に用紙Ｐを排出させる。   The driven roller 31 is provided so as to be swingable so as to be in contact with and away from the conveyance roller 33. The closed state in which the sheet P is nipped and conveyed and discharged to the sheet discharge tray 32 and the open state in which the sheet P is not nipped by the conveyance roller 33 and the driven roller 31 can be selectively taken. When the sheet P is guided from the introduction conveyance path 1 to the linear conveyance path 3 by the shift operation of the sheet P by the conveyance roller pair 12 in the introduction conveyance path 1, the conveyance roller 33 and the driven roller 31 are separated from each other to be opened. After the shifting operation of the sheet P by the pair 12 is completed, the conveying roller 33 and the driven roller 31 are brought into contact with each other to be in a closed state, and the sheet P is nipped and conveyed by the conveying roller 33 and the driven roller 31 and discharged from the discharge port 82 to the discharge tray. 32 causes the paper P to be discharged.

用紙後処理装置１００の排出口８２が形成された側壁の排出口８２上方付近には、排紙トレイ３２上にスタックされた用紙Ｐの表面中央付近位置に先端部が接するように、前記側壁に取り付けられた根元部分を中心に回動自在なフィラー３４が設けられている。フィラー３４の根元部分付近には、フィラー３４の先端部の高さ位置を検知する上面検知センサ（図示しない）があり、上面検知センサの検知結果に基づいて排紙トレイ３２上にスタックされた用紙Ｐの積載高さを検知している。   In the vicinity of the upper side of the discharge port 82 on the side wall where the discharge port 82 of the paper post-processing apparatus 100 is formed, the front end is in contact with the position near the center of the front surface of the paper P stacked on the discharge tray 32. A filler 34 that is rotatable around the attached root portion is provided. In the vicinity of the base portion of the filler 34, there is an upper surface detection sensor (not shown) that detects the height position of the tip portion of the filler 34, and the sheets stacked on the paper discharge tray 32 based on the detection result of the upper surface detection sensor. The loading height of P is detected.

排紙トレイ３２上の堆積枚数の増大により用紙Ｐの積載高さが高くなり、フィラー３４が上に向かって回動して上面検知センサがＯＮされると、用紙後処理装置１００に設けられた図示しない制御部が排紙トレイ３２を上下動させる駆動手段（図示しない）を制御して、排紙トレイ３２を下降させる。排紙トレイ３２が下降し、それに連動してフィラー３４が下に向かって回動すると上面検知センサがＯＦＦされ、前記制御部が前記駆動手段を制御して排紙トレイ３２の下降を停止させる。このような動作を繰り返し行い、排紙トレイ３２が規定のトレイ満杯高さまで達すると、用紙後処理装置１００の制御部から画像形成装置に停止信号を出し、画像形成装置での画像形成動作を停止させる。   When the stacking number of sheets P increases due to an increase in the number of stacked sheets on the discharge tray 32, and the filler 34 rotates upward and the upper surface detection sensor is turned on, the sheet post-processing apparatus 100 is provided. A control unit (not shown) controls drive means (not shown) for moving the paper discharge tray 32 up and down to lower the paper discharge tray 32. When the discharge tray 32 is lowered and the filler 34 is rotated downward in conjunction therewith, the upper surface detection sensor is turned off, and the control unit controls the driving means to stop the lowering of the discharge tray 32. Such an operation is repeated, and when the discharge tray 32 reaches the specified tray full height, a stop signal is issued from the control unit of the sheet post-processing apparatus 100 to the image forming apparatus, and the image forming operation in the image forming apparatus is stopped. Let

また、直線搬送路３にはステイプルトレイ３６と叩きローラ３０が配置され、直線搬送路３の終端位置には紙面と直交する方向へ進退するドライバとクリンチャとで分割されたステイプラ４１が配置されている。さらに紙面と直交する方向に進退してステイプルトレイ３６上の用紙Ｐの整合を行うジョガーフェンス３７，３８などを有する。   In addition, a staple tray 36 and a hitting roller 30 are arranged in the linear conveyance path 3, and a stapler 41 divided by a driver and a clincher moving forward and backward in a direction orthogonal to the paper surface is arranged at the end position of the linear conveyance path 3. Yes. Further, jogger fences 37 and 38 for aligning the paper P on the staple tray 36 by moving back and forth in a direction orthogonal to the paper surface are provided.

導入搬送路１から直線搬送路３に搬送されてきた用紙Ｐは、ステイプルトレイ３６上に導かれ、ジョガーフェンス３７，３８により幅方向位置が揃えられる。また、叩きローラ３０が、図中反時計回りに振り子運動を行って用紙上面に当接することで、用紙Ｐをステイプラ４１側にスイッチバックさせ基準フェンス３９，４０に用紙後端を突き当てて用紙Ｐの縦方向位置を揃える。   The sheet P conveyed from the introduction conveyance path 1 to the straight conveyance path 3 is guided onto the staple tray 36 and aligned in the width direction by the jogger fences 37 and 38. Further, the tapping roller 30 performs a pendulum motion counterclockwise in the drawing to contact the upper surface of the paper, so that the paper P is switched back to the stapler 41 side and the rear edge of the paper is abutted against the reference fences 39 and 40. Align the vertical position of P.

このようにして幅方向位置と縦方向位置とが揃えられた用紙Ｐは、端綴じモード時にステイプラ４１が用紙Ｐの紙面と直交する方向に移動して用紙束の下縁部の適所をステイプルすることにより綴じられる。その後、従動ローラ３１と搬送ローラ３３とによって用紙束を挟持搬送することで用紙束が排紙トレイ３２上に排出される。   In the paper P in which the position in the width direction and the vertical direction are aligned in this way, the stapler 41 moves in a direction perpendicular to the paper surface of the paper P in the edge binding mode, and staples the appropriate position at the lower edge of the paper bundle. It is bound by. Thereafter, the sheet bundle is nipped and conveyed by the driven roller 31 and the conveyance roller 33 so that the sheet bundle is discharged onto the sheet discharge tray 32.

中綴じモードでは、用紙Ｐの幅方向位置や縦方向位置を揃えた後に、クランプ可動フェンス１２０，１２１によって用紙後端が挟持される。また、基準フェンス３９，４０は、用紙搬送の邪魔とならないように、用紙Ｐの幅方向の幅よりも外側の位置に待避する。   In the saddle stitching mode, after the width direction position and the vertical direction position of the paper P are aligned, the rear edge of the paper is clamped by the clamp movable fences 120 and 121. Further, the reference fences 39 and 40 are retracted to a position outside the width in the width direction of the paper P so as not to disturb the paper conveyance.

クランプ可動フェンス１２０，１２１は、側板外に配置されたクランプ縦軸１０６に取り付けられており、湾曲した湾曲搬送路４に沿って縦方向及び横方向に移動する。なお、クランプ可動フェンス１２０，１２１の縦方向の移動はクランプ縦軸１０６に沿って移動し、クランプ可動フェンス１２０，１２１の横方向の移動は湾曲搬送路４と同一の軌道であり装置側板に形成されたガイドレール１１０に沿って移動する。このようにクランプ可動フェンス１２０，１２１が移動することで、クランプ可動フェンス１２０，１２１に用紙後端を挟持された用紙Ｐは、曲線搬送路４（ガイドレール１１０）の軌道に沿って用紙サイズに対応した所定位置まで搬送され、用紙長センター部の適所をステイプラ４１によりステイプルされることにより中綴じされる。   The clamp movable fences 120 and 121 are attached to a clamp longitudinal axis 106 disposed outside the side plate, and move in the vertical direction and the horizontal direction along the curved curved conveyance path 4. The vertical movement of the clamp movable fences 120 and 121 moves along the clamp longitudinal axis 106, and the horizontal movement of the clamp movable fences 120 and 121 is the same track as the curved conveyance path 4 and is formed on the apparatus side plate. It moves along the guide rail 110 made. By moving the movable clamp fences 120 and 121 in this way, the paper P having the rear end of the paper sandwiched between the movable clamp fences 120 and 121 becomes the paper size along the trajectory of the curved conveyance path 4 (guide rail 110). The paper is transported to a corresponding predetermined position, and is stapled by being stapled by a stapler 41 at an appropriate position in the sheet length center portion.

なお、用紙サイズに対応した所定位置とは、クランプ可動フェンスホームポジションセンサ４９の位置から所定パルス送られた位置である。   The predetermined position corresponding to the paper size is a position sent by a predetermined pulse from the position of the clamp movable fence home position sensor 49.

中綴じされた用紙Ｐは、クランプ可動フェンス１２０，１２１により湾曲搬送路４を下方へ搬送され、用紙長センター部が湾曲搬送路４中に設けられた折りブレード２０３の位置になるところで用紙Ｐの搬送が停止し、折り工程へ移行する。なお、用紙Ｐの停止位置は、用紙Ｐの湾曲搬送路４内で下側に位置する側の端部を折り位置センサ１１８で検知し、用紙サイズに対応した所定パルス送られた位置である。   The saddle-stitched paper P is conveyed downward along the curved conveyance path 4 by the clamp movable fences 120 and 121, and the sheet length center portion is located at the position of the folding blade 203 provided in the curved conveyance path 4. The conveyance is stopped and the process proceeds to the folding process. The stop position of the paper P is a position where a lower end portion of the paper P in the curved conveyance path 4 is detected by the folding position sensor 118 and a predetermined pulse corresponding to the paper size is sent.

折り位置に停止した用紙長センター部を折りブレード２０３と搬送ローラ２０６，２０７とにより、プレス折り部へ導入する。プレス折り部に導入された用紙長センター部をプレス板２１９と，２２０により、上下方向からプレスすることによって用紙Ｐは中折りをされる。中折りをされた用紙Ｐは、搬送ローラ２０６，２０７と排紙ローラ対５８とによって中綴じトレイ６２上に排紙される。   The sheet length center portion stopped at the folding position is introduced into the press folding portion by the folding blade 203 and the conveying rollers 206 and 207. The sheet P is folded in the middle direction by pressing the sheet length center part introduced into the press folding part from above and below by the press plates 219 and 220. The folded sheet P is discharged onto the saddle stitching tray 62 by the conveying rollers 206 and 207 and the discharge roller pair 58.

中綴じトレイ６２に排出された用紙Ｐは、用紙押さえ部材６０に取り付けられた用紙押さえコロ６１によって押さえられ、折られた用紙Ｐが膨らんで次に排出される用紙排出の邪魔にならない機構になっている。   The sheet P discharged to the saddle stitching tray 62 is pressed by a sheet pressing roller 61 attached to the sheet pressing member 60, and the folded sheet P swells and does not obstruct the discharge of the next discharged sheet. ing.

なお、本実施形態においては、用紙穿孔ユニット２００と、湾曲搬送路４を有する中折ユニット３００とが、着脱可能な構成となっており、使用者のニーズに応じた用紙後処理装置１００の提供が可能となる構成となっている。   In the present embodiment, the paper punching unit 200 and the half-folding unit 300 having the curved conveyance path 4 are detachable, and the paper post-processing apparatus 100 according to the needs of the user is provided. Is configured to be possible.

ここで、画像形成済みの用紙をストッパーに突き当てて揃え、所定枚数揃えた後の用紙束に綴じ処理を行う後処理装置において、本体から１枚ずつ搬送されてくる用紙を湾曲搬送路内でスタックし揃えることは、３０枚などの多数枚を綴じる後処理装置において用紙が湾曲搬送路内で撓んで湾曲搬送路を塞いだりするため揃えが悪い。そのため、ストッパーに用紙を突き当てて揃える場合には用紙束の整合性を良くするために直線搬送路上で綴じ処理を行うことが知られている。しかし、直線搬送路上の綴じでは、綴じを行う最大のサイズにあわせて直線搬送路が長くなり装置の幅が大きくなる。   Here, in a post-processing apparatus that performs alignment processing on a sheet bundle after aligning a predetermined number of sheets with an image-formed sheet abutted against a stopper, the sheets conveyed one by one from the main body in the curved conveyance path Stacking and aligning is poor because the sheet is bent in the curved conveyance path in a post-processing apparatus that binds a large number of sheets such as 30 sheets and closes the curved conveyance path. For this reason, it is known that when the sheets are brought into contact with the stopper and aligned, the binding process is performed on the straight conveyance path in order to improve the consistency of the sheet bundle. However, in the case of binding on the straight conveyance path, the straight conveyance path becomes longer and the width of the apparatus increases in accordance with the maximum size for binding.

図３（ａ）は綴じ手段であるステイプラ４１０で端綴じのみを行う構成の一例を示す模式図である。図３（ｂ）はステイプラ４１０を中綴じと端綴じとで兼用する構成の一例であり、ステイプラ４１０で端綴じを行う場合を示す模式図である。図３（ｃ）は図３（ｂ）に示したステイプラ４１０で中綴じを行う場合を示す模式図である。図３（ｂ）や図３（ｃ）に示すようなステイプラ４１０で中綴じと端綴じとを兼用して行う構成の場合では、図３（ａ）に示すようなステイプラ４１０で端綴じのみを行う構成よりも直線搬送路が１．５倍必要となり、その分、装置の幅も大きくなる。   FIG. 3A is a schematic diagram illustrating an example of a configuration in which only the end binding is performed by the stapler 410 which is a binding unit. FIG. 3B is an example of a configuration in which the stapler 410 is used for both saddle stitching and edge stitching, and is a schematic diagram showing a case where the stapler 410 performs edge stitching. FIG. 3C is a schematic diagram illustrating a case where saddle stitching is performed with the stapler 410 illustrated in FIG. In the case where the stapler 410 performs both saddle stitching and end stitching as shown in FIG. 3B and FIG. 3C, only the end binding is performed with the stapler 410 as shown in FIG. A straight conveyance path is required 1.5 times as much as the configuration to be performed, and the width of the apparatus is increased accordingly.

そこで、装置の幅を小さくするために直線搬送路の一部もしくは全部を曲線搬送路とした湾曲搬送路にすることが考えられる。その場合、湾曲搬送路内で用紙を揃えることは困難であるため、直線搬送路上で用紙を揃えてから湾曲搬送路内へ揃えた用紙束を搬送し綴じることが考えられる。   Therefore, in order to reduce the width of the apparatus, it is conceivable to use a curved conveyance path in which a part or all of the straight conveyance path is a curved conveyance path. In that case, since it is difficult to align the sheets in the curved conveyance path, it is conceivable to align the sheets on the linear conveyance path and then convey and bind the aligned sheet bundle into the curved conveyance path.

図４（ａ）は用紙束の全てが直線搬送路３’上に位置する状態でステイプラ４１により用紙束を中綴じする構成の一例を示す模式図であり、図４（ｂ）は用紙束が直線搬送路３上と曲線搬送路４上とに位置する状態でステイプラ４１により用紙束を中綴じする構成の一例を示す模式図である。   FIG. 4A is a schematic diagram showing an example of a configuration in which the sheet bundle is saddle-stitched by the stapler 41 in a state where all the sheet bundles are positioned on the straight conveyance path 3 ′, and FIG. FIG. 6 is a schematic diagram illustrating an example of a configuration in which a sheet bundle is saddle-stitched by a stapler 41 in a state of being positioned on a straight conveyance path 3 and a curved conveyance path 4.

図４（ａ）に示すような用紙束の全てが直線搬送路３’上に位置する状態でステイプラ４１により用紙束を中綴じする構成に対して、図４（ｂ）に示すように用紙束が直線搬送路３上と曲線搬送路４上とに位置する状態でステイプラ４１により用紙束を中綴じする構成のほうが、曲線搬送路４が下方に向かって延びている分、装置の水平方向の幅を小さくすることができる。また、図４（ａ）に示された直線搬送路３’に、直線搬送路３’上で綴じた用紙束を折り部へ搬送するための搬送路として図４（ｂ）に示すような湾曲搬送路４を追加で設けると、さらに装置幅は大きくなってしまう。   In contrast to the configuration in which the sheet bundle is saddle-stitched by the stapler 41 in a state where all of the sheet bundle as shown in FIG. 4A is positioned on the straight conveyance path 3 ′, the sheet bundle as shown in FIG. In the configuration in which the sheet bundle is saddle-stitched by the stapler 41 in a state where is positioned on the straight conveyance path 3 and the curved conveyance path 4, the curved conveyance path 4 extends downward, so that the horizontal direction of the apparatus is increased. The width can be reduced. Further, a curve as shown in FIG. 4B is provided as a conveyance path for conveying the sheet bundle bound on the linear conveyance path 3 ′ to the folding portion in the linear conveyance path 3 ′ shown in FIG. If the conveyance path 4 is additionally provided, the apparatus width is further increased.

なお、図４（ｂ）に示すような用紙束が直線搬送路３上と曲線搬送路４上とに位置する状態で用紙束を中綴じする構成の場合では、ステイプラ４１１で用紙束に中綴じをする際に曲線搬送路４上に位置する用紙の長さは、図５（ａ）や図５（ｂ）に示すように用紙サイズによって異なる。   4B, when the sheet bundle is saddle-stitched in a state where the sheet bundle is positioned on the straight conveyance path 3 and the curved conveyance path 4, the stapler 411 performs saddle stitching on the sheet bundle. The length of the sheet positioned on the curved conveyance path 4 when performing the process varies depending on the sheet size as shown in FIGS. 5 (a) and 5 (b).

図６は、クランプ搬送機構について説明する図である。
図６に示すように綴じる前の用紙束の搬送方法として、揃えられた用紙束をクランプ手段である板状部材のクランプ可動フェンス１２０，１２１で掴み、クランプ可動フェンス１２０，１２１が移動することで用紙束を搬送する場合を考える。用紙束をクランプして搬送する機構としては、クランプ可動フェンス１２０，１２１と、上下にスライドするスライド手段であるクランプ縦軸１０６と左右にスライドする手段と曲線搬送路４に沿って移動できるようにするガイドするガイド手段であるガイドレール１１０からなる。 FIG. 6 is a diagram illustrating the clamp conveyance mechanism.
As shown in FIG. 6, as a method of transporting the sheet bundle before binding, the aligned sheet bundle is grasped by the clamp movable fences 120 and 121 of plate-like members as clamping means, and the clamp movable fences 120 and 121 are moved. Consider the case of conveying a stack of sheets. As a mechanism for clamping and transporting the sheet bundle, the movable movable fences 120 and 121, the clamp longitudinal axis 106 that is a sliding means that slides up and down, the means that slides left and right, and the curved transport path 4 can move. The guide rail 110 is a guide means for guiding.

クランプ搬送はローラ搬送と比べて、用紙束の受け渡しが無く常に用紙束をクランプ可動フェンス１２０，１２１で掴んだまま移動するので、用紙束のずれが発生しにくく速い速度で搬送が可能となる。   Compared with roller conveyance, the clamp conveyance is not transferred, and the sheet bundle is always moved while being gripped by the clamp movable fences 120 and 121, so that the deviation of the sheet bundle is less likely to occur and the conveyance can be performed at a high speed.

図７は、クランプ圧解除部材について説明する図である。
クランプ可動フェンス１２０，１２１は洗濯ばさみのように挟む力がバネ１４１で加圧されている。クランプ可動フェンス１２０，１２１が用紙束を掴んだり放したりを変更するクランプ圧解除部材の例として、図７（ａ）に示すように、ソレノイド１４０でバネ１４１を介して軸１４２ａを中心に揺動する揺動板１４２をクランプ可動フェンス１２０の後端に押し当てて加圧し、クランプ可動フェンス１２０，１２１の先端を持ち上げることにより、クランプ可動フェンス１２０，１２１を開く。一方、クランプ可動フェンス１２０，１２１が開いているときに用紙を突き当てフェンスに１２２突き当てて、一定枚数の用紙を突き当てフェンス１２２に突き当てた後、図７（ｂ）に示すように、ソレノイド１４０でバネ１４１を介して揺動板１４２によるクランプ可動フェンス１２０への加圧を解除し、クランプ可動フェンス１２０，１２１を閉じて用紙束をクランプ可動フェンス１２０，１２１で挟む。 FIG. 7 is a diagram illustrating the clamp pressure release member.
The clamping movable fences 120 and 121 are pressed by a spring 141 so as to be pinched like a clothespin. As an example of a clamp pressure release member that changes whether the clamp movable fences 120 and 121 grip and release the sheet bundle, as shown in FIG. 7A, the solenoid 140 swings around a shaft 142a via a spring 141 as shown in FIG. The movable rocking plate 142 is pressed against the rear end of the clamp movable fence 120 and pressurized, and the clamp movable fences 120 and 121 are opened by lifting the tips of the clamp movable fences 120 and 121. On the other hand, after the clamp movable fences 120 and 121 are opened, the sheet is abutted against the abutment fence 122, and a certain number of sheets are abutted against the abutment fence 122, as shown in FIG. The solenoid 140 releases the pressure applied to the movable clamp fence 120 by the swing plate 142 via the spring 141, closes the movable clamp fences 120 and 121, and sandwiches the sheet bundle between the movable clamp fences 120 and 121.

なお、図８のように湾曲搬送路内で用紙束を掴んで移動するクランプ可動フェンス１２０，１２１においては、用紙束と搬送ガイド板１１５，１１６の抵抗によりクランプ可動フェンス１２０，１２１から用紙が抜けることや、ずれることを防ぐためにクランプ可動フェンス１２０，１２１は用紙束を掴む位置において湾曲搬送路の接線とほぼ平行になるよう維持したまま移動することが望ましい。   As shown in FIG. 8, in the clamp movable fences 120 and 121 that grip and move the sheet bundle in the curved conveyance path, the sheet comes out of the clamp movable fences 120 and 121 due to the resistance of the sheet bundle and the conveyance guide plates 115 and 116. In order to prevent such a situation, the clamp movable fences 120 and 121 are preferably moved while being kept substantially parallel to the tangent line of the curved conveyance path at the position where the sheet bundle is gripped.

図９（ａ）クランプ可動フェンス１２０，１２１が直線搬送路３にあり、図９（ｂ）はクランプ可動フェンス１２０，１２１が直線搬送路３から湾曲搬送路４へ入り始めており、図９（ｃ）はクランプ可動フェンス１２０，１２１が湾曲搬送路４にあって、クランプ可動フェンス１２０，１２１で搬送する用紙束の状態を示す図である。クランプ可動フェンス１２０，１２１により用紙束のクランプ可動フェンス側端部を掴んだまま用紙束を搬送するので、クランプ可動フェンス１２０，１２１が掴んだ位置で用紙束のクランプ可動フェンス側端部は固定されて、用紙束のクランプ可動フェンス側端部では揃えた状態が維持されている。   FIG. 9A shows that the clamp movable fences 120 and 121 are in the straight conveyance path 3, and FIG. 9B shows that the clamp movable fences 120 and 121 start to enter the curved conveyance path 4 from the straight conveyance path 3. ) Is a diagram illustrating a state of a sheet bundle conveyed by the movable clamp fences 120 and 121 when the movable clamp fences 120 and 121 are in the curved conveyance path 4. Since the sheet bundle is transported while the clamp movable fence 120, 121 is gripping the clamp movable fence side end of the sheet bundle, the clamp movable fence side end of the sheet bundle is fixed at the position where the clamp movable fence 120, 121 is gripped. Thus, the aligned state is maintained at the end of the bundle of sheets on the side of the clamp movable fence.

図１０は、図９（ａ）、図９（ｂ）、図９（ｃ）を同一図面上で示したものであり、クランプ可動フェンス１２０，１２１が傾くと、その傾きに合わせて用紙束のクランプ可動フェンス側端部も傾いているのがわかる。   FIG. 10 shows FIGS. 9 (a), 9 (b), and 9 (c) on the same drawing. When the clamp movable fences 120 and 121 are tilted, the sheet bundles are adjusted in accordance with the tilt. It can be seen that the end of the clamp movable fence is also tilted.

ここで、図１１（ａ）に示すように直線搬送路でスタックされた用紙束は、クランプ可動フェンス１２０，１２１で掴んで搬送され湾曲搬送路で図示しないステイプラで中綴じ処理される。図１１（ｂ）に示されるように用紙束の綴じ針４２から用紙束端部までの距離は、内周側の紙と外周側の紙で長さが異なる。この長さの差は図１１（ｃ）のように用紙束を真っ直ぐにしたとき、用紙束端部でのずれになる。用紙の厚さは約０．１［ｍｍ］と薄く、２枚の中綴じ用紙束がひっついていれば用紙束端部でのずれは小さい。しかし、枚数が増えれば用紙束の厚みが増し、用紙束の内周側と外周側との長さの差が大きくなり、その結果、ずれも大きくなるので、同じ枚数であっても用紙の紙厚によってずれ量は異なる。   Here, as shown in FIG. 11A, the sheet bundle stacked in the straight conveyance path is gripped and conveyed by the clamp movable fences 120 and 121, and subjected to saddle stitching with a stapler (not shown) in the curved conveyance path. As shown in FIG. 11B, the distance from the binding needle 42 of the sheet bundle to the end of the sheet bundle is different between the inner peripheral paper and the outer peripheral paper. This difference in length becomes a deviation at the end of the sheet bundle when the sheet bundle is straightened as shown in FIG. The thickness of the sheet is as small as about 0.1 [mm], and if the two saddle-stitched sheet bundles are stuck, the deviation at the end of the sheet bundle is small. However, as the number of sheets increases, the thickness of the sheet bundle increases, and the difference in length between the inner peripheral side and the outer peripheral side of the sheet bundle increases. As a result, the deviation also increases. The amount of deviation varies depending on the thickness.

図９、図１０、図１１に示すように、用紙束のクランプ可動フェンス側端部では、クランプ可動フェンス１２０，１２１により掴まれたままなので搬送方向のずれはないが、湾曲搬送路４上にある用紙束の中央に中綴じを行うと、湾曲搬送路４の湾曲形状に沿って湾曲した用紙束の内周側と外周側とで曲率が異なって、中綴じされた位置からクランプ可動フェンス側とは反対側の端部までの長さの差により用紙束のクランプ可動フェンス側とは反対側の端部にずれが生じる。このずれ量は２枚ではずれが少なく、２０枚ではずれが大きいことが明らかであり、綴じる枚数が増えることによって用紙束の内周側と外周側とで中綴じされた位置からクランプ可動フェンス側とは反対側の端部までの長さの差が大きくなる。また、用紙の紙厚によってもずれの大きさは異なる。   As shown in FIGS. 9, 10, and 11, the clamp movable fence side end of the sheet bundle remains gripped by the clamp movable fences 120 and 121, so there is no shift in the transport direction, but the curved transport path 4 When saddle stitching is performed at the center of a certain sheet bundle, the curvature differs between the inner and outer peripheral sides of the sheet bundle curved along the curved shape of the curved conveyance path 4, and the clamp movable fence side from the saddle-stitched position Due to the difference in length to the opposite end, the end of the sheet bundle opposite to the clamp movable fence side is displaced. It is clear that the amount of deviation is small for two sheets and large for 20 sheets. By increasing the number of sheets to be bound, the clamp movable fence side from the position where the inner and outer peripheral sides of the sheet bundle are saddle-stitched. The difference in length to the end on the opposite side becomes larger. Further, the magnitude of the deviation varies depending on the paper thickness.

図１２（ａ）用紙サイズの小さい用紙束が湾曲搬送路４を占める長さを示した図であり、図１２（ｂ）は用紙サイズの大きい用紙束が湾曲搬送路４を占める長さを示した図である。直線搬送路３と湾曲搬送路４とに用紙束がある状態で用紙の略中心に綴じ針４２を差し込んで中綴じする場合では、図１２（ａ）や図１２（ｂ）に示すように用紙サイズによって湾曲搬送路４を占める用紙束の長さが異なる。   FIG. 12A is a diagram illustrating the length of a sheet bundle having a small sheet size occupying the curved conveyance path 4, and FIG. 12B illustrates the length of a sheet bundle having a large sheet size occupying the curved conveyance path 4. It is a figure. In the case where the binding needle 42 is inserted into the substantially center of the sheet and the saddle stitching is performed with the sheet bundle in the straight conveyance path 3 and the curved conveyance path 4, as shown in FIG. 12 (a) and FIG. 12 (b). The length of the sheet bundle occupying the curved conveyance path 4 varies depending on the size.

次に、同じ湾曲搬送路４に用紙束がある状態で中綴じを行うときに、用紙束端部のずれが用紙サイズによってどのように変化するか説明する。   Next, how the deviation of the edge of the sheet bundle changes depending on the sheet size when performing saddle stitching with the sheet bundle on the same curved conveyance path 4 will be described.

図中ｄは用紙束の厚さであり、用紙枚数や紙厚の組み合わせで異なる。図中ｒは湾曲搬送路４の内側のガイド板の曲線部分の曲率である。図中Ｌは中綴じ位置から湾曲搬送路４の曲線部分までの直線部分の長さである。図中α、βは曲線部分上の用紙が占める角度である。湾曲搬送路４上で用紙束に中綴じを行うときに、用紙サイズが長くなるほど曲線部分上に位置する用紙部分が長くなり、曲線部分を占める用紙の角度も増す。   In the figure, d is the thickness of the sheet bundle, and differs depending on the combination of the number of sheets and the thickness. In the figure, r is the curvature of the curved portion of the guide plate inside the curved conveyance path 4. In the figure, L is the length of the straight line portion from the saddle stitching position to the curved portion of the curved conveyance path 4. In the figure, α and β are angles occupied by the sheet on the curved portion. When performing saddle stitching on a bundle of sheets on the curved conveyance path 4, the longer the sheet size, the longer the sheet portion positioned on the curved portion, and the angle of the sheet occupying the curved portion also increases.

図１２（ａ）のときの中綴じ位置（綴じ針４２の位置）から湾曲部分上に位置する用紙束端部までの長さを求める。用紙束の内周側にある用紙では、直線部分の長さ＋半径ｒの曲線部分の長さなので、Ｌ＋２πｒ×α／３６０となる。一方、用紙束の外周側にある用紙のとき、直線部分の長さ＋半径（ｒ＋ｄ）の曲線部分の長さなので、Ｌ＋２π（ｒ＋ｄ）×α／３６０となる。用紙束の外周側の長さと内周側の長さとの差が用紙束端部でのずれになるのでそのずれ量を数１で表すと次のようになる。   The length from the saddle stitching position (position of the binding needle 42) in FIG. 12A to the end of the sheet bundle positioned on the curved portion is obtained. In the sheet on the inner peripheral side of the sheet bundle, the length of the straight line portion + the length of the curved portion of the radius r is L + 2πr × α / 360. On the other hand, when the sheet is on the outer peripheral side of the sheet bundle, the length of the curved portion is the length of the straight portion + the radius (r + d), and therefore L + 2π (r + d) × α / 360. Since the difference between the length on the outer peripheral side and the length on the inner peripheral side of the sheet bundle is the deviation at the end of the sheet bundle, the amount of deviation is expressed by the following equation (1).

Figure 0005669011
Figure 0005669011

数１からαが大きくなると用紙束端部のずれも大きくなり、用紙サイズによって用紙束端部のずれが異なることが分かる。つまり同じ枚数、同じ紙厚であっても用紙サイズが異なると用紙束端部でのずれ量が異なる。このように用紙束の少なくとも一部が湾曲搬送路４上にある状態で中綴じを行うと、枚数、紙厚、用紙サイズの組み合わせによって全く異なるずれが用紙束端部に発生する。   It can be seen that as α increases from Equation 1, the deviation of the edge of the sheet bundle also increases, and the deviation of the edge of the sheet bundle varies depending on the sheet size. In other words, even if the number of sheets is the same and the sheet thickness is the same, the amount of deviation at the end of the sheet bundle differs if the sheet size differs. When saddle stitching is performed in a state where at least a part of the sheet bundle is on the curved conveyance path 4 in this way, a completely different shift occurs at the end of the sheet bundle depending on the combination of the number of sheets, the sheet thickness, and the sheet size.

例えば、１枚０．１［ｍｍ］の厚みで長さ４２０［ｍｍ］のＡ３用紙２０枚に中綴じすることを考える。中綴じ位置から湾曲搬送路４の曲線部分までの直線部分の長さＬ＝１００［ｍｍ］、湾曲搬送路４の曲線部分の曲率ｒ＝１００のとき、曲線部分の用紙の長さは（用紙の長さの半分−直線部分の長さ）なので１１０［ｍｍ］となり、角度にして６３度の円弧に相当する。そのときの用紙束端部でのずれ量は数２に示すように２．２［ｍｍ］となる。   Consider, for example, saddle stitching on 20 sheets of A3 paper having a thickness of 0.1 [mm] and a length of 420 [mm]. When the length L = 100 [mm] of the straight portion from the saddle stitching position to the curved portion of the curved conveyance path 4 and the curvature r = 100 of the curved portion of the curved conveyance path 4, the length of the sheet of the curved portion is (paper Therefore, it is 110 [mm], which corresponds to an arc of 63 degrees in angle. The amount of deviation at the end of the sheet bundle at that time is 2.2 [mm] as shown in Equation 2.

Figure 0005669011
Figure 0005669011

用紙束をずれないようにクランプ可動フェンス１２０，１２１で掴んでいるものの、装置を小さくするために湾曲搬送路４にすることによって用紙束端部でのずれ量が２．２［ｍｍ］と十分大きいことが分かる。   Although it is gripped by the clamp movable fences 120 and 121 so as not to deviate the sheet bundle, the deviation amount at the end of the sheet bundle is sufficiently 2.2 [mm] by using the curved conveyance path 4 in order to reduce the apparatus. You can see that it ’s big.

図１（ａ）はＢ５用紙の用紙束を揃える場合での突き当てフェンス１２２を角度調整機構により角度を調整して傾けた状態を示す図である。図１（ｂ）はＡ４用紙の用紙束を揃える場合での突き当てフェンス１２２を角度調整機構により角度を調整して傾けた状態を示す図である。図１（ｃ）はＡ３用紙の用紙束を揃える場合での突き当てフェンス１２２を角度調整機構により角度を調整して傾けた状態を示す図である。   FIG. 1A is a diagram illustrating a state in which the butting fence 122 is tilted by adjusting the angle by the angle adjusting mechanism when aligning the sheet bundle of B5 sheets. FIG. 1B is a diagram showing a state in which the abutting fence 122 is tilted by adjusting the angle by the angle adjusting mechanism when aligning the sheet bundle of A4 sheets. FIG. 1C is a diagram illustrating a state in which the abutting fence 122 is tilted by adjusting the angle by the angle adjusting mechanism when aligning the sheet bundle of A3 sheets.

図１に示すように、クランプ可動フェンス１２０，１２１の突き当てフェンス１２２を図示しない角度調整機構により用紙サイズに応じて異なる角度に調整して傾けることができる。この際、突き当てフェンス１２２の突き当て面に用紙束の端面が突き当たった際に、用紙束の突き当てフェンス側の端面と用紙束の下面とで成す角が鋭角となるに、突き当てフェンス１２２を傾ける。これにより、湾曲搬送路４上に用紙束の少なくとも一部が位置した際に用紙束の端部に生じ得るずれとは逆のずれを予め生じさせた状態で、用紙束をクランプ可動フェンス１２０，１２１で掴むことができる。よって、クランプ可動フェンス１２０，１２１で用紙束を直線搬送路３から曲線搬送路４に向かって搬送し、用紙束の少なくとも一部が曲線搬送路４上にある状態でステイプラ４１により中綴じが行われた用紙束の端部のずれを低減させることができる。   As shown in FIG. 1, the abutment fence 122 of the clamp movable fences 120 and 121 can be tilted by adjusting to different angles according to the paper size by an angle adjustment mechanism (not shown). At this time, when the end face of the sheet bundle abuts against the abutment surface of the abutment fence 122, the angle formed by the end face of the sheet bundle on the abutment fence side and the lower surface of the sheet bundle becomes an acute angle. Tilt. Accordingly, the sheet bundle is clamped in a state in which a shift opposite to a shift that may occur at the end of the sheet bundle is generated in advance when at least a part of the sheet bundle is positioned on the curved conveyance path 4. It can be grabbed at 121. Therefore, the sheet bundle is conveyed from the straight conveyance path 3 toward the curved conveyance path 4 by the clamp movable fences 120 and 121, and saddle stitching is performed by the stapler 41 in a state where at least a part of the sheet bundle is on the curved conveyance path 4. The deviation of the edge of the broken sheet bundle can be reduced.

図１３は、突き当てフェンス１２２の角度を調整する角度調整機構として、突き当てフェンス１２２と当たることにより軸１２２ａを中心に突き当てフェンス１２２を回転させて傾ける傾け部材１３０を用いた場合の模式図である。図１３に示すように湾曲搬送路４から直線搬送路３に向かってクランプ可動フェンス１２０，１２１や突き当てフェンス１２２などからなるクランプ機構を移動させ、傾け部材１３０に突き当てフェンス１２２を当てることで、突き当てフェンス１２２が軸１２２ａを中心に図中反時計回りに回転し、傾け部材１３０との当たり具合に応じた角度で突き当てフェンス１２２が傾く。すなわち、突き当てフェンス１２２に用紙を突き当てクランプ可動フェンス１２０，１２１で用紙を掴む位置に、クランプ可動フェンス１２０，１２１や突き当てフェンス１２２などからなるクランプ機構が移動したときに、突き当てフェンス１２２が傾け部材１３０に当たることで、突き当てフェンス１２２が回転軸１２２ａを中心に図中反時計回り方向に回転して傾く。   FIG. 13 is a schematic diagram when an inclined member 130 is used as an angle adjusting mechanism for adjusting the angle of the abutment fence 122, which rotates the abutment fence 122 about the shaft 122a and tilts the abutment fence 122 by contacting the abutment fence 122. It is. As shown in FIG. 13, the clamp mechanism including the clamp movable fences 120 and 121 and the abutment fence 122 is moved from the curved conveyance path 4 toward the straight conveyance path 3, and the abutment fence 122 is applied to the inclined member 130. The butting fence 122 rotates counterclockwise in the figure around the shaft 122a, and the butting fence 122 is tilted at an angle corresponding to the degree of contact with the tilting member 130. That is, when the clamp mechanism including the clamp movable fences 120, 121 and the abutment fence 122 is moved to a position where the sheet is abutted against the abutment fence 122 and the clamp movable fences 120, 121 are gripped, the abutment fence 122 is moved. Hitting the tilting member 130 causes the abutment fence 122 to rotate and tilt counterclockwise in the figure around the rotation shaft 122a.

図１４（ａ）はＢ５用紙の用紙束を揃える場合での突き当てフェンスを傾け部材に突き当て角度を調整して傾けた状態を示す図であり、図１４（ｂ）はＡ４用紙の用紙束を揃える場合での突き当てフェンスを傾け部材に突き当て角度を調整して傾けた状態を示す図であり、図１４（ｃ）はＡ３用紙の用紙束を揃える場合での突き当てフェンスを傾け部材に突き当て角度を調整して傾けた状態を示す図である。   FIG. 14A is a view showing a state in which the abutment fence is tilted by adjusting the abutment angle with the inclined member when aligning the sheet bundle of B5 sheets, and FIG. 14B is a sheet bundle of A4 sheets. FIG. 14C is a view showing a state in which the abutting fence is tilted by adjusting the abutting angle to the tilting member when aligning the sheets, and FIG. 14C is a diagram illustrating the tilting member of the butting fence when aligning the sheet bundle of A3 sheets. It is a figure which shows the state which adjusted and adjusted the abutting angle.

図１４（ａ）や図１４（ｂ）や図１４（ｃ）に示すように用紙サイズによってクランプ可動フェンス１２０，１２１の位置を変えることで傾け部材１３０と突き当てフェンス１２２との接触量が変わり、突き当てフェンス１２２の角度を調整することができる。   As shown in FIGS. 14A, 14B, and 14C, the amount of contact between the inclined member 130 and the abutment fence 122 changes by changing the position of the clamp movable fences 120 and 121 depending on the paper size. The angle of the butting fence 122 can be adjusted.

Ａ４用紙を揃えるときよりもＡ３用紙を揃えるときのほうが、クランプ可動フェンス１２０，１２１は高い位置にあるので、突き当てフェンス１２２と傾け部材１３０との接触量がＡ４用紙を揃える場合よりもＡ３用紙を揃える場合のほうが多くなる。そのため、突き当てフェンス１２２はＡ４用紙を揃える場合よりもＡ３用紙を揃える場合のほうがより傾いている。   Since the clamp movable fences 120 and 121 are at a higher position when aligning A3 sheets than when aligning A4 sheets, the amount of contact between the abutment fence 122 and the inclined member 130 is larger than when aligning A4 sheets. More when you align them. For this reason, the abutment fence 122 is more inclined when aligning A3 sheets than when aligning A4 sheets.

このようにＡ３用紙のときのほうがＡ４用紙のときよりも突き当てフェンス１２２がより傾いているので、Ａ３用紙では直線搬送路３で揃えた用紙束はＡ４用紙のときよりも、よりずれて揃えられる。このように用紙を揃えるときに用紙をずらす量は、用紙サイズに応じてクランプ可動フェンス１２０，１２１の位置を変え、傾け部材１３０と突き当てフェンス１２２との接触量を変化させることで調整することができる。   In this way, the abutting fence 122 is more inclined when using A3 paper than when using A4 paper, so that the paper bundle aligned on the straight conveyance path 3 is aligned more shifted than that of A4 paper. It is done. The amount of shifting the paper when aligning the paper in this way is adjusted by changing the position of the movable clamp fences 120 and 121 according to the paper size and changing the contact amount between the tilting member 130 and the abutment fence 122. Can do.

また、突き当てフェンス１２２にバネ部材であるねじりコイルバネ１２３によって所定方向の付勢力を付勢するような構成を採用してもよい。   Moreover, you may employ | adopt the structure which urges | biass the urging | biasing force of a predetermined direction to the butting fence 122 with the torsion coil spring 123 which is a spring member.

図１５（ａ）は突き当てフェンス１２２と傾け部材１３０とが接触しているときにおけるねじりコイルバネ１２３の状態を示したものであり、図１５（ｂ）は突き当てフェンス１２２と傾け部材１３０とが接触していないときにおけるねじりコイルバネ１２３の状態を示したものである。   FIG. 15A shows a state of the torsion coil spring 123 when the abutting fence 122 and the inclined member 130 are in contact with each other. FIG. 15B shows a state where the abutting fence 122 and the inclined member 130 are in contact with each other. The state of the torsion coil spring 123 when not in contact is shown.

図１５（ｃ）などに示すように、ねじりコイルバネ１２３は、突き当てフェンス１２２をクランプ可動フェンス１２１に対して回転可能に軸支する軸１２２ａに中空なコイル部分が嵌め込まれ、ねじりコイルバネ１２３の一端がクランプ可動フェンス１２１に接続されている。   As shown in FIG. 15C and the like, the torsion coil spring 123 has one end of the torsion coil spring 123 fitted into a shaft 122 a that rotatably supports the abutment fence 122 with respect to the clamp movable fence 121. Is connected to the clamp movable fence 121.

図１５（ｃ）に示すように突き当てフェンス１２２と傾け部材１３０とが接触しているときは、ねじりコイルバネ１２３が弾性力に抗して巻き戻される。図１５（ｄ）に示すように突き当てフェンス１２２と傾け部材１３０とが接触していないときは、巻き戻されたねじりコイルバネ１２３が戻され、ねじりコイルバネ１２３により突き当てフェンス１２２が付勢され軸１２２ａを中心に図中時計回りに回動して突き当てフェンス１２２の傾きが一定の角度で固定される。   As shown in FIG. 15C, when the abutting fence 122 and the inclined member 130 are in contact, the torsion coil spring 123 is rewound against the elastic force. As shown in FIG. 15D, when the abutment fence 122 and the inclined member 130 are not in contact with each other, the unwound torsion coil spring 123 is returned, and the abutment fence 122 is urged by the torsion coil spring 123 so that the shaft The tilting of the abutment fence 122 is fixed at a constant angle by rotating clockwise around the drawing 122a.

そのため、図１５（ｅ）に示すような傾け部材１３０と突き当てフェンス１２２とが接触している用紙揃え時の状態から、図１５（ｆ）に示すようなクランプ可動フェンス１２０，１２１で用紙束を挟んで搬送する状態に変わるときに、揃えた用紙束の端面に突き当てフェンス１２２が触れて用紙束をずらしたり傷つけたりしないように、突き当てフェンス１２２が用紙束の端面と逆の方向に回転し固定される。   Therefore, the sheet bundle is moved by the clamp movable fences 120 and 121 as shown in FIG. 15 (f) from the state at the time of paper alignment where the inclined member 130 and the abutment fence 122 are in contact as shown in FIG. 15 (e). The abutment fence 122 is placed in a direction opposite to the end surface of the sheet bundle so that the abutment fence 122 does not touch the edge surface of the aligned sheet bundle and shift or damage the sheet bundle when the state is changed to a state where the sheet bundle is conveyed. Rotated and fixed.

図１６は、突き当てフェンス１２２の角度を調整する角度調整機構の他例を示すものである。この例では、図１６（ａ）に示すように傾け部材であるラック１２５と噛み合っていない位置にある、クランプ可動フェンス１２０，１２１に設置されたピニオン１２４が、図１６（ｂ）に示すようにクランプ可動フェンス１２０，１２１を移動させてピニオン１２４がラック１２５に乗り上げることで両者が噛み合いピニオン１２４が回転して、ピニオン１２４の側面に設けられたピン１２３ａにより突き当てフェンス１２４が押されて、軸１２２ａを中心に突き当てフェンス１２２が回転することで突き当てフェンス１２２の角度を変えることができる。また、図１６（ｃ）に示すようにラック１２５上におけるピニオン１２４の位置を用紙サイズに応じて変化させることで、突き当てフェンス１２２の角度を用紙サイズに最適化された角度にすることができる。   FIG. 16 shows another example of an angle adjustment mechanism that adjusts the angle of the abutment fence 122. In this example, as shown in FIG. 16 (a), the pinion 124 installed on the movable clamp fences 120 and 121, which is not engaged with the rack 125, which is an inclined member, is shown in FIG. 16 (b). The clamp movable fences 120 and 121 are moved and the pinion 124 rides on the rack 125 so that the two mesh with each other, the pinion 124 rotates, and the abutment fence 124 is pushed by the pin 123a provided on the side surface of the pinion 124. The angle of the abutment fence 122 can be changed by the rotation of the abutment fence 122 around 122a. Further, as shown in FIG. 16C, by changing the position of the pinion 124 on the rack 125 according to the paper size, the angle of the abutment fence 122 can be made an angle optimized for the paper size. .

図１６（ｄ）で突き当てフェンス１２２を傾けた状態からクランプ可動フェンス１２０，１２１を開き、図１６（ｅ）に示すように、開いたクランプ可動フェンス１２０，１２１の間に送り込まれ突き当てフェンス１２２に突き当たった用紙束を、クランプ可動フェンス１２０，１２１で挟んで掴む。用紙束をクランプ可動フェンス１２０，１２１で掴んだ状態で搬送を始めると、ピニオン１２４が逆回転し突き当てフェンス１２２の角度が図１６（ｆ）から図１６（ｇ）へと変わる。このとき突き当てフェンス１２２は図示しないねじりコイルバネなどによって軸１２２ａを中心に用紙束から遠ざかる方向に回転して、図１６（ｈ）に示すように、ピニオン１２４がラック１２５上から降りたときには、突き当てフェンス１２２が用紙束の端部から離れた状態となる。   The clamp movable fences 120 and 121 are opened from the state where the abutment fence 122 is tilted in FIG. 16D, and the abutment fence is sent between the opened clamp movable fences 120 and 121 as shown in FIG. The sheet bundle that hits 122 is sandwiched and clamped between clamp movable fences 120 and 121. When conveyance is started in a state where the sheet bundle is gripped by the clamp movable fences 120 and 121, the pinion 124 rotates reversely, and the angle of the butting fence 122 changes from FIG. 16 (f) to FIG. 16 (g). At this time, the abutting fence 122 is rotated in a direction away from the sheet bundle around the shaft 122a by a torsion coil spring or the like (not shown), and when the pinion 124 descends from the rack 125 as shown in FIG. The contact fence 122 is separated from the end of the sheet bundle.

図１７は、突き当てフェンス１２２の角度を調整する角度調整機構のさらに他例を示すものである。傾け部材１３１の傾斜に突き当てフェンス１２２が乗り上げた際の乗り上げ量によって突き当てフェンス１２２の角度調整を正確に行うことができる。   FIG. 17 shows still another example of an angle adjustment mechanism that adjusts the angle of the abutment fence 122. The angle of the abutment fence 122 can be accurately adjusted according to the amount of ride when the abutment fence 122 rides on the inclination of the inclined member 131.

図１７（ａ）はＢ５用紙の用紙束を揃える場合における傾け部材１３１に対する突き当てフェンス１２２の乗り上げ位置を示す図である。図１７（ｂ）はＡ４用紙の用紙束を揃える場合における傾け部材１３１に対する突き当てフェンス１２２の乗り上げ位置を示す図である。図１７（ｃ）はＡ３用紙の用紙束を揃える場合における傾け部材１３１に対する突き当てフェンス１２２の乗り上げ位置を示す図である。   FIG. 17A is a diagram illustrating a position where the abutment fence 122 rides on the inclined member 131 when aligning the sheet bundle of B5 sheets. FIG. 17B is a diagram illustrating a position where the abutment fence 122 rides on the inclined member 131 when aligning the sheet bundle of A4 sheets. FIG. 17C is a diagram illustrating a position where the abutment fence 122 rides on the inclined member 131 when aligning the sheet bundle of A3 sheets.

この機構は傾け部材１３１の傾斜を任意に設定することで、クランプ可動フェンス１２０，１２１の移動量に対する突き当てフェンス１２２の傾きを調整できる。   This mechanism can adjust the inclination of the abutting fence 122 with respect to the movement amount of the clamp movable fences 120 and 121 by arbitrarily setting the inclination of the inclination member 131.

クランプ可動フェンス１２０，１２１が所定の停止位置に正確に止まれないときでもクランプ可動フェンス１２０，１２１の移動量に対する突き当てフェンス１２２の傾き量を小さくすることで狙いの角度に突き当てフェンス１２２を調整することができる。   Even when the clamp movable fences 120 and 121 cannot be accurately stopped at the predetermined stop position, the abutment fence 122 is adjusted to the target angle by reducing the inclination amount of the abutment fence 122 with respect to the movement amount of the clamp movable fences 120 and 121. can do.

図１８（ａ）は突き当てフェンス１２２の角度を調整する角度調整機構として、軸１２２ａを中心に回転可能な突き当てフェンス１２２と接するように設けられ、モータ１７０の軸１６０ａに偏心して取り付けられた円形の偏心カム１６０を、軸１６０ａを介してモータ１７０により回転させることで、突き当てフェンス１２２を傾けて角度調整する例である。   FIG. 18A shows an angle adjusting mechanism for adjusting the angle of the abutting fence 122 so as to be in contact with the abutting fence 122 rotatable around the shaft 122a, and is eccentrically attached to the shaft 160a of the motor 170. This is an example in which a circular eccentric cam 160 is rotated by a motor 170 via a shaft 160a, and the abutment fence 122 is tilted to adjust the angle.

図１８（ｂ）に示すように、モータ１７０によって軸１６０ａを中心に偏心カム１６０を図中反時計回りに回転させ、偏心カム１６０により突き当てフェンス１２２を押して突き当てフェンス１２２を図中反時計回りに回転させることにより角度調整をすることで、モータ１７０の回転を制御することにより突き当てフェンス１２２の角度調整を正確に行うことができるため、用紙サイズの種類が増えても角度調整を容易に行うことができる。   As shown in FIG. 18B, the eccentric cam 160 is rotated counterclockwise around the shaft 160a by the motor 170, and the abutting fence 122 is pushed by the eccentric cam 160 so that the abutting fence 122 is counterclockwise. By adjusting the angle by rotating it around, it is possible to accurately adjust the angle of the abutment fence 122 by controlling the rotation of the motor 170. Therefore, even if the types of paper sizes increase, the angle adjustment is easy. Can be done.

図１９（ａ）は突き当てフェンス１２２の角度を調整する角度調整機構として、モータ１７１に軸１６１ａを介して接続された歯車１６１をモータ１７１で回転させて、軸１２２ａを介して突き当てフェンス１２２と一体で回転可能に取り付けられ歯車１６１と噛み合う歯車１６２を回し、その歯車１６２の回転に連動させて突き当てフェンス１２２を回転させることにより、突き当てフェンス１２２の角度調整する例である。   FIG. 19A shows an angle adjusting mechanism for adjusting the angle of the butting fence 122. The gear 161 connected to the motor 171 via the shaft 161a is rotated by the motor 171 and then the abutting fence 122 via the shaft 122a. This is an example in which the angle of the abutment fence 122 is adjusted by rotating the gear 162 that rotates integrally with the gear 161 and meshes with the gear 161 and rotates the abutment fence 122 in conjunction with the rotation of the gear 162.

図１９（ｂ）に示すように、モータ１７１によって歯車１６１を図中時計回りに回転させて、歯車１６２を図中反時計回りに回し突き当てフェンス１２２が回転させて突き当てフェンス１２２の角度を調整することで、モータ１７１の回転を制御することにより突き当てフェンス１２２の角度調整を正確に行うことができるため、用紙サイズの種類が増えても角度調整を容易に行うことができる。   As shown in FIG. 19B, the gear 161 is rotated clockwise in the figure by the motor 171 and the gear 162 is turned counterclockwise in the figure to rotate the abutment fence 122 so that the angle of the abutment fence 122 is increased. By adjusting the angle, the angle of the abutment fence 122 can be accurately adjusted by controlling the rotation of the motor 171. Therefore, the angle can be easily adjusted even if the types of paper sizes increase.

以上、本実施形態によれば、略直線状の直線搬送路３と、直線搬送路３の用紙搬送方向端部と繋がっており湾曲状の湾曲搬送路４と、直線搬送路３に送られてきた用紙の端部を自身の突き当て面に突き当てて用紙束の用紙搬送方向の位置決めを行う端部基準部材である突き当てフェンス１２２と、突き当てフェンス１２２により位置決めされた直線搬送路３上の用紙束を挟み持ち、直線搬送路３から湾曲搬送路４に向かって用紙束を移動させるクランプ手段と、用紙束に綴じ処理を行う綴じ手段であるステイプラ４１とを備え、クランプ手段により用紙束の少なくとも一部を直線搬送路３から湾曲搬送路４まで移動させて、ステイプラ４１により用紙束に綴じを行う用紙後処理装置において、用紙束の突き当てフェンス側の端面に対する突き当てフェンス１２２の角度を調整する角度調整手段を有する。これにより、角度調整手段により用紙束の突き当てフェンス側の端面に対して角度を調整して突き当てフェンス１２２を傾けることができる。これにより、直線搬送路３から曲線搬送路に向かって用紙束をクランプ可動フェンス１２０，１２１で搬送し湾曲搬送路４上に用紙束の少なくとも一部がある際に、用紙束の端部に生じ得るずれとは逆のずれを予め生じさせた状態で、用紙束をクランプ可動フェンス１２０，１２１で挾持することができる。よって、クランプ可動フェンス１２０，１２１で用紙束を直線搬送路３から曲線搬送路に向かって搬送し、用紙束の少なくとも一部が曲線搬送路上にある状態でステイプラ４１により用紙束の中綴じを行ったときの用紙束の端部のずれを低減させることができる。
また、本実施形態によれば、湾曲搬送路４は下方に向かって湾曲しており、突き当てフェンス１２２の突き当て面に用紙束の端面が突き当たった際に、用紙束の突き当てフェンス側の端面と用紙束の下面とで成す角が鋭角となるように、前記角度調整手段が突き当てフェンス１２２の角度を調整することで、湾曲搬送路４上に用紙束の少なくとも一部が位置した際に用紙束の端部に生じ得るずれとは逆のずれを予め生じさせた状態で、用紙束をクランプ可動フェンス１２０，１２１で掴むことができる。よって、クランプ可動フェンス１２０，１２１で用紙束を直線搬送路３から曲線搬送路４に向かって搬送し、用紙束の少なくとも一部が曲線搬送路４上にある状態でステイプラ４１により中綴じが行われた用紙束の端部のずれを低減させることができる。
また、本実施形態によれば、突き当てフェンス１２２はクランプ可動フェンス１２０，１２１と一体で移動可能に構成されており、クランプ可動フェンス１２０ 、１２１の移動によって突き当てフェンス１２２に接触し突き当てフェンス１２２を傾ける傾け部材１３０を有し、傾け部材１３０に対する突き当てフェンス１２２の接触量を調整することにより突き当てフェンス１２２の傾きを調整することで、追加の動力源を必要としない安価な構成で、突き当てフェンス１２２の傾きの調整を傾け部材との接触量で調整することができる。
また、本実施形態によれば、突き当てフェンス１２２の傾きを所定側に規制するバネ部材であるねじりコイルバネ１２３を有することで、用紙束を搬送するときには突き当てフェンス１２２と傾け部材１３０との接触が解除されても、ねじりコイルバネ１２３によって突き当てフェンス１２２の傾きが所定側に固定されて、突き当てフェンス１２２が用紙束側に傾いて用紙束を傷つけることを抑制することができる。
また、本実施形態によれば、上記角度調整手段は歯車状のピニオン１２４を有し、上記傾け部材が歯を切ったラック１２５になっており、クランプ可動フェンス１２０，１２１の移動とともにピニオン１２４とラック１２５とが噛み合いピニオン１２４が回転することで突き当てフェンス１２２の角度が調整されることで、ピニオン１２４の回転で突き当てフェンス１２２の角度調整を正確に行うことができる。
また、本実施形態によれば、傾け部材１３１が搬送路に沿ったなだらかな傾斜をもつ形状であり、突き当てフェンス１２２が傾け部材１３１の傾斜に乗り上げ前記傾斜に沿って移動することにより突き当てフェンス１２２の傾きを調整することで、傾け部材１３１の傾斜の乗り上げ量によって突き当てフェンス１２２の角度調整を正確に行うことができる。
また、本実施形態によれば、突き当てフェンス１２２に接するように設けられた偏心カム１６０と、偏心カム１６０を回転させるモータとを有しており、モータ１７０によって偏心カム１６０を回転させて突き当てフェンス１２２の角度を調整することで、モータ１７０の回転を制御することにより突き当てフェンス１２２の角度調整を正確に行うことができるため、用紙サイズの種類が増えても角度調整を容易に行うことができる。
また、本実施形態によれば、突き当てフェンス１２２に設けられた第１ギヤである歯車１６２と、歯車１６２と噛み合う第２ギヤである歯車１６１と、歯車１６１を回転させるモータとを有しており、モータ１７１によって歯車１６１を回転させて歯車１６２を回し突き当てフェンス１２２を回転させて突き当てフェンス１２２の角度を調整することで、モータ１７１の回転を制御することにより突き当てフェンス１２２の角度調整を正確に行うことができるため、用紙サイズの種類が増えても角度調整を容易に行うことができる。 As described above, according to the present embodiment, the substantially straight linear conveyance path 3 is connected to the end of the linear conveyance path 3 in the sheet conveyance direction, and is sent to the curved curved conveyance path 4 and the straight conveyance path 3. Abutting fence 122 which is an end reference member for positioning the sheet bundle in the sheet conveying direction by abutting the end of the sheet on the abutting surface, and on the straight conveyance path 3 positioned by the abutting fence 122 A clamp means for moving the paper bundle from the straight conveyance path 3 toward the curved conveyance path 4 and a stapler 41 as a binding means for performing a binding process on the paper bundle. In the paper post-processing apparatus in which at least a part of the paper is moved from the straight conveyance path 3 to the curved conveyance path 4 and bound to the sheet bundle by the stapler 41, the sheet bundle abuts against the end face on the abutment fence side. An angle adjusting means for adjusting the angle of the fence 122 Te. Accordingly, the abutting fence 122 can be tilted by adjusting the angle with respect to the end face of the sheet bundle on the abutting fence side by the angle adjusting means. Accordingly, when the sheet bundle is conveyed by the clamp movable fences 120 and 121 from the straight conveyance path 3 toward the curved conveyance path and at least a part of the sheet bundle exists on the curved conveyance path 4, the sheet bundle is generated at the end of the sheet bundle. The sheet bundle can be clamped by the clamp movable fences 120 and 121 in a state in which a deviation opposite to the obtained deviation is generated in advance. Therefore, the sheet bundle is conveyed from the linear conveyance path 3 toward the curved conveyance path by the clamp movable fences 120 and 121, and the stapler 41 performs saddle stitching with at least a part of the sheet bundle on the curved conveyance path. It is possible to reduce the deviation of the end of the sheet bundle when the sheet is stacked.
In addition, according to the present embodiment, the curved conveyance path 4 is curved downward, and when the end surface of the sheet bundle abuts against the abutment surface of the abutment fence 122, the sheet bundle abuts on the abutment fence side. When the angle adjusting means adjusts the angle of the abutment fence 122 so that the angle formed between the end surface and the lower surface of the sheet bundle is an acute angle, when at least a part of the sheet bundle is positioned on the curved conveyance path 4 In addition, the sheet bundle can be grasped by the clamp movable fences 120 and 121 in a state in which a deviation opposite to the deviation that may occur at the end of the sheet bundle is generated in advance. Therefore, the sheet bundle is conveyed from the straight conveyance path 3 toward the curved conveyance path 4 by the clamp movable fences 120 and 121, and saddle stitching is performed by the stapler 41 in a state where at least a part of the sheet bundle is on the curved conveyance path 4. The deviation of the edge of the broken sheet bundle can be reduced.
Further, according to the present embodiment, the abutment fence 122 is configured to be movable integrally with the clamp movable fences 120 and 121, and comes into contact with the abutment fence 122 by the movement of the clamp movable fences 120 and 121. By having an inclined member 130 for inclining 122 and adjusting the inclination of the abutting fence 122 by adjusting the contact amount of the abutting fence 122 with respect to the inclined member 130, an inexpensive configuration that does not require an additional power source. The inclination of the abutment fence 122 can be adjusted by the amount of contact with the inclined member.
In addition, according to the present embodiment, the torsion coil spring 123 that is a spring member that restricts the inclination of the abutment fence 122 to a predetermined side is provided, so that the abutment fence 122 and the inclined member 130 are in contact with each other when the sheet bundle is conveyed. Even if is released, the inclination of the abutment fence 122 is fixed to the predetermined side by the torsion coil spring 123, and the abutment fence 122 can be prevented from being inclined toward the sheet bundle side and damaging the sheet bundle.
Further, according to the present embodiment, the angle adjusting means has a gear-like pinion 124, and the inclined member is a rack 125 with teeth, and the pinion 124 and the clamp movable fences 120, 121 move together with the movement of the clamp movable fences 120, 121. The angle of the abutment fence 122 is adjusted by the meshing engagement with the rack 125 and the rotation of the pinion 124 so that the angle of the abutment fence 122 can be accurately adjusted by the rotation of the pinion 124.
Further, according to the present embodiment, the inclined member 131 has a shape having a gentle inclination along the conveyance path, and the abutment fence 122 rides on the inclination of the inclined member 131 and moves along the inclination. By adjusting the inclination of the fence 122, the angle adjustment of the abutment fence 122 can be accurately performed according to the amount of the inclined member 131 that has been inclined.
Further, according to the present embodiment, the eccentric cam 160 provided so as to be in contact with the abutment fence 122 and the motor that rotates the eccentric cam 160 are provided. By adjusting the angle of the abutment fence 122, the angle adjustment of the abutment fence 122 can be accurately performed by controlling the rotation of the motor 170. Therefore, the angle adjustment is easily performed even if the types of paper sizes increase. be able to.
In addition, according to the present embodiment, the gear 162 that is the first gear provided on the butting fence 122, the gear 161 that is the second gear meshing with the gear 162, and the motor that rotates the gear 161 are provided. The angle of the abutment fence 122 is controlled by controlling the rotation of the motor 171 by rotating the gear 161 by the motor 171 and rotating the gear 162 to rotate the abutment fence 122 to adjust the angle of the abutment fence 122. Since the adjustment can be performed accurately, the angle adjustment can be easily performed even if the types of paper sizes increase.

１ 導入搬送路
２ 搬送搬送路
３ 直線搬送路
４ 湾曲搬送路
１０ 入口ローラ対
１１ 搬送ローラ対
１２ 搬送ローラ対
１３ 入口センサ
２０ 分岐爪
２１ 排出ローラ
２２ 排紙トレイ
３０ 叩きローラ
３１ 従動ローラ
３２ 排紙トレイ
３３ 搬送ローラ
３４ フィラー
３５ 排紙センサ
３６ ステイプルトレイ
３７ ジョガーフェンス
３８ ジョガーフェンス
３９ 基準フェンス
４０ 基準フェンス
４１ ステイプラ
４９ クランプ可動フェンスホームポジションセンサ
５８ 排紙ローラ対
６０ 用紙押さえ部材
６１ 用紙押さえコロ
６２ 中綴じトレイ
８０ 受入口
８１ 排出口
８２ 排出口
１００ 用紙後処理装置
１０６ クランプ縦軸
１１０ ガイドレール
１１５ 搬送ガイド板
１１６ 搬送ガイド板
１１８ 位置センサ
１２０ クランプ可動フェンス
１２１ クランプ可動フェンス
１２２ フェンス
１２２ａ 軸
１２３ ねじりコイルバネ
１２４ ピニオン
１２５ ラック
１３０ 傾け部材
１３１ 傾け部材
１４０ ソレノイド
１４１ バネ
１４２ 揺動板
１４２ａ 軸
１６０ 偏心カム
１６１ 歯車
１６２ 歯車
２００ 用紙穿孔ユニット
２０３ 折りブレード
２０６ 搬送ローラ
２０７ 搬送ローラ
２１９ プレス板
３００ 中折ユニット DESCRIPTION OF SYMBOLS 1 Introduction conveyance path 2 Conveyance conveyance path 3 Straight conveyance path 4 Curved conveyance path 10 Inlet roller pair 11 Conveyance roller pair 12 Conveyance roller pair 13 Inlet sensor 20 Branching claw 21 Discharge roller 22 Discharge tray 30 Tapping roller 31 Follower roller 32 Discharge Tray 33 Conveying roller 34 Filler 35 Paper discharge sensor 36 Staple tray 37 Jogger fence 38 Jogger fence 39 Reference fence 40 Reference fence 41 Stapler 49 Clamp movable fence home position sensor 58 Paper discharge roller pair 60 Paper pressing member 61 Paper pressing roller 62 Saddle binding Tray 80 Receiving port 81 Ejecting port 82 Ejecting port 100 Paper post-processing device 106 Clamp vertical axis 110 Guide rail 115 Conveying guide plate 116 Conveying guide plate 118 Position sensor 120 Clamp movable fence 1 21 Clamp movable fence 122 Fence 122a Shaft 123 Torsion coil spring 124 Pinion 125 Rack 130 Tilt member 131 Tilt member 140 Solenoid 141 Spring 142 Oscillating plate 142a Shaft 160 Eccentric cam 161 Gear 162 Gear 200 200 Paper punching unit 203 Folding blade 206 Transport roller 207 Transport Roller 219 Press plate 300 Middle folding unit

特開２００７−１５３６０５号公報JP 2007-153605 A

Claims (7)

略直線状の直線搬送路と、
前記直線搬送路の用紙搬送方向端部と繋がっており湾曲状の湾曲搬送路と、
前記直線搬送路に送られてきた用紙の端部を自身の突き当て面に突き当てて用紙束の用紙搬送方向の位置決めを行う端部基準部材と、
前記端部基準部材により位置決めされた前記直線搬送路上の用紙束を挟み持ち、前記直線搬送路から前記湾曲搬送路に向かって用紙束を移動させるクランプ手段と、
用紙束に綴じ処理を行う綴じ手段とを備え、
前記クランプ手段により用紙束の少なくとも一部を前記直線搬送路から前記湾曲搬送路まで移動させて、前記綴じ手段により用紙束に中綴じを行う用紙後処理装置において、
用紙束の前記端部基準部材側の端面に対する前記端部基準部材の角度を調整する角度調整手段を有し、
前記湾曲搬送路は下方に向かって湾曲しており、
前記端部基準部材の突き当て面に用紙束の端面が突き当たった際に、用紙束の端部基準部材側の端面と用紙束の下面とで成す角が鋭角となるように、前記角度調整手段が前記端部基準部材の角度を調整することを特徴とする用紙後処理装置。 A substantially straight linear conveyance path;
A curved curved conveyance path connected to an end of the linear conveyance path in the paper conveyance direction;
An end reference member for positioning the sheet bundle in the sheet conveyance direction by abutting the end of the sheet sent to the linear conveyance path with its abutting surface;
Clamping means for holding the sheet bundle on the linear conveyance path positioned by the end reference member and moving the sheet bundle from the linear conveyance path toward the curved conveyance path;
A binding means for performing a binding process on a sheet bundle,
In the sheet post-processing apparatus, in which at least a part of the sheet bundle is moved from the linear conveyance path to the curved conveyance path by the clamping unit, and the sheet bundle is saddle stitched by the binding unit,
Have a angle adjusting means for adjusting the angle of said end reference member against the end face of the end reference member side of the sheet bundle,
The curved conveyance path is curved downward,
When the end surface of the sheet bundle abuts against the abutting surface of the end reference member, the angle adjusting means is configured so that an angle formed by the end surface on the end reference member side of the sheet bundle and the lower surface of the sheet bundle becomes an acute angle. Adjusts the angle of the end reference member . 請求項１の用紙後処理装置において、
上記端部基準部材は上記クランプ手段と一体で移動可能に構成されており、
前記クランプ手段の移動によって前記端部基準部材に接触し該端部基準部材を傾ける傾け部材を有し、
前記傾け部材に対する前記端部基準部材の接触量を調整することにより該端部基準部材の傾きを調整することを特徴とする用紙後処理装置。 The paper post-processing apparatus according to claim 1 .
The end reference member is configured to be movable integrally with the clamping means,
A tilting member that contacts the end reference member and tilts the end reference member by movement of the clamping means;
A sheet post-processing apparatus, wherein the inclination of the end reference member is adjusted by adjusting a contact amount of the end reference member with respect to the inclined member. 請求項２の用紙後処理装置において、
上記端部基準部材の傾きを所定側に規制するバネ部材を有することを特徴とする用紙後処理装置。 The sheet post-processing apparatus according to claim 2 ,
A sheet post-processing apparatus having a spring member for restricting the inclination of the end reference member to a predetermined side. 請求項２の用紙後処理装置において、
上記角度調整手段は歯車状のピニオンを有し、上記傾け部材が歯を切ったラックになっており、上記クランプ手段の移動とともに前記ピニオンと前記ラックとが噛み合い該ピニオンが回転することで上記端部基準部材の角度が調整されることを特徴とする用紙後処理装置。 The sheet post-processing apparatus according to claim 2 ,
The angle adjusting means has a gear-like pinion, and the inclined member is a rack with teeth, and the pinion and the rack are engaged with each other as the clamp means is moved, and the pinion rotates to rotate the end. A paper post-processing apparatus, wherein the angle of the reference member is adjusted. 請求項２の用紙後処理装置において、
上記傾け部材が搬送経路に沿ったなだらかな傾斜をもつ形状であり、上記端部基準部材が前記傾け部材の傾斜に乗り上げ該傾斜に沿って移動することにより前記端部基準部材の傾きを調整することを特徴とする用紙後処理装置。 The sheet post-processing apparatus according to claim 2 ,
The inclined member has a shape having a gentle inclination along the conveyance path, and the end reference member rides on the inclination of the inclined member and moves along the inclination to adjust the inclination of the end reference member. A sheet post-processing apparatus. 請求項１の用紙後処理装置において、
上記端部基準部材に接するように設けられた偏心カムと、
前記偏心カムを回転させるモータとを有しており、
前記モータによって前記偏心カムを回転させて前記端部基準部材の角度を調整することを特徴とする用紙後処理装置。 The paper post-processing apparatus according to claim 1 .
An eccentric cam provided in contact with the end reference member;
A motor for rotating the eccentric cam,
The sheet post-processing apparatus, wherein the eccentric cam is rotated by the motor to adjust the angle of the end reference member. 請求項１の用紙後処理装置において、
上記端部基準部材に設けられた第１ギヤと、
前記第１ギヤと噛み合う第２ギヤと、
前記第２ギヤを回転させるモータとを有しており、
前記モータによって前記第２ギヤを回転させて前記第１ギヤを回すことにより前記端部基準部材を回転させて該端部基準部材の角度を調整することを特徴とする用紙後処理装置。 The paper post-processing apparatus according to claim 1 .
A first gear provided on the end reference member;
A second gear meshing with the first gear;
A motor for rotating the second gear,
A sheet post-processing apparatus, wherein the end reference member is rotated by rotating the first gear by rotating the second gear by the motor to adjust the angle of the end reference member.
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