JP2006051592A - Sheet cutting device, sheet post-treatment device, and image formation system - Google Patents

Sheet cutting device, sheet post-treatment device, and image formation system Download PDF

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JP2006051592A
JP2006051592A JP2005002420A JP2005002420A JP2006051592A JP 2006051592 A JP2006051592 A JP 2006051592A JP 2005002420 A JP2005002420 A JP 2005002420A JP 2005002420 A JP2005002420 A JP 2005002420A JP 2006051592 A JP2006051592 A JP 2006051592A
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sheet
cutting
blade
receiving member
paper
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JP4150859B2 (en
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Masaaki Uchiyama
正明 内山
Toshio Shida
寿夫 志田
Hiroyuki Wakabayashi
裕之 若林
Masato Hattori
真人 服部
Kenji Kawatsu
憲治 川津
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Konica Minolta Business Technologies Inc
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a paper sheet cutting device capable of cutting a bundle of sheets containing a small number of sheets to a large number using a minor driving force and maintaining a high-grade cutting performance for a long period, and a sheet post-treatment device and an image formation system equipped with the sheet cutting device. <P>SOLUTION: The sheet cutting device is equipped with a blade driving mechanism to move a cutter blade at least in the first direction alongside the sheet surface and cut the sheet and a receiving member driving mechanism to shift a receiving member to receive the blade in the second direction cross to the first direction and set the unused portion of the blade receiving member to the cutting position. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は複数枚の用紙を断裁する用紙断裁装置、用紙断裁装置を有する用紙後処理装置及び用紙断裁装置を有する画像形成システムに関する。   The present invention relates to a sheet cutting apparatus for cutting a plurality of sheets, a sheet post-processing apparatus having a sheet cutting apparatus, and an image forming system having a sheet cutting apparatus.

電子写真方式の画像形成装置のように高速の画像形成装置には、各種の後処理を行う用紙後処理装置が接続され、画像形成した用紙に対して、穿孔処理、綴じ処理、折り処理等の各種の後処理を1台の装置内で行うことを可能にした多機能な画像形成システムが普及している。   A high-speed image forming apparatus, such as an electrophotographic image forming apparatus, is connected to a paper post-processing device that performs various post-processing. For image-formed paper, punching processing, binding processing, folding processing, etc. Multi-functional image forming systems that enable various post-processing to be performed in one apparatus have become widespread.

各種の後処理装置には、複数枚の用紙の束の端縁を揃える用紙断裁装置があり、例えば、特許文献1では、中折り処理、中綴じ処理された用紙の小口を断裁する断裁装置を備えた画像形成システムが開示されている。特許文献1に記載された用紙断裁装置は、ギロチン式と称されるもので、断裁刃を紙面に直角な方向から押し当てて断裁するものである。   Various post-processing devices include a sheet cutting device that aligns the edges of a bundle of a plurality of sheets. For example, Patent Document 1 discloses a cutting device that cuts the edge of a sheet that has been subjected to center folding or saddle stitching. An image forming system is disclosed. The paper cutting apparatus described in Patent Document 1 is called a guillotine type, and cuts by pressing a cutting blade from a direction perpendicular to the paper surface.

特許文献2には、断裁刃を紙面に対して斜め方向から押し当てて断裁する用紙断裁装置が開示されている。
特開2003−228205号公報 特開2003−191196号公報
Patent Document 2 discloses a paper cutting apparatus that presses a cutting blade against a paper surface from an oblique direction to perform cutting.
JP 2003-228205 A JP 2003-191196 A

特許文献1に記載されたギロチン式の断裁装置は、断裁刃の駆動に大きな力が必要であり、しかも、駆動手段のパワーを使用範囲の最高値に設定する必要があるために、大電力のモータが必要になるなど、装置が大きくなるとともに、消費電力が大きくなるという問題がある。特に、画像形成システムを構成する後処理装置に断裁装置を組み込むことが困難になる。   The guillotine-type cutting device described in Patent Document 1 requires a large force for driving the cutting blade, and the power of the driving means needs to be set to the highest value in the use range. There is a problem that the apparatus becomes larger and the power consumption becomes larger, such as the need for a motor. In particular, it becomes difficult to incorporate the cutting device into the post-processing device that constitutes the image forming system.

特許文献2の断裁装置では、用紙を支持する台が断裁刃を受ける刃受け部材としても機能するが、多数回の断裁動作により、台が断裁刃により、切除されて刻み溝が形成され、該刻み溝が原因で、切り残しが出たり、断裁面が不均一になる等の問題がある。   In the cutting apparatus of Patent Document 2, the table that supports the paper also functions as a blade receiving member that receives the cutting blade. However, the cutting table is cut by the cutting blade to form a notch groove by a plurality of cutting operations. Due to the notch grooves, there are problems such as uncut parts and uneven cutting surfaces.

本発明は従来の用紙断裁装置におけるこのような問題を解決することを目的とし、特に、画像形成システムの一部として用いるのに好適な用紙断裁装置、かかる用紙断裁装置を備えた用紙後処理装置及び画像形成システムを提供することを目的とする。   The present invention has an object to solve such a problem in a conventional sheet cutting apparatus, and in particular, a sheet cutting apparatus suitable for use as a part of an image forming system, and a sheet post-processing apparatus including such a sheet cutting apparatus. And an image forming system.

前記目的は下記の発明のいずれかにより達成される。
(請求項1)
用紙を断裁する断裁刃と、
断裁位置にある用紙に対して、前記断裁刃を少なくとも用紙の紙面に沿った第1方向に移動させて用紙を断裁する刃駆動機構と、
前記断裁位置において前記断裁刃を受ける刃受け部材とを有する用紙断裁装置であって、
前記第1方向と交叉する第2方向に前記刃受け部材を変位させる受け部材駆動機構を有することを特徴とする用紙断裁装置。
(請求項2)
前記受け部材駆動機構は、前記刃受け部材を、前記第2方向のうちの一方向にのみ変位させることを特徴とする請求項1に記載の用紙断裁装置。
(請求項3)
前記断裁位置で用紙を押さえる作動位置と退避位置との間を移動する用紙押さえ部材を有し、前記刃受け部材は前記受け部材駆動機構により、前記用紙押さえ部材に対して変位可能に設けられたことを特徴とする請求項1又は請求項2に記載の用紙断裁装置。
(請求項4)
前記用紙押さえ部材を前記作動位置と前記退避位置とに移動させる押さえ部材駆動機構を有することを特徴とする請求項3に記載の用紙断裁装置。
(請求項5)
所定回数の断裁作動毎に前記受け部材駆動機構を作動させ、前記刃受け部材を変位させる制御手段を有することを特徴とする請求項1〜4のいずれか1項に記載の用紙断裁装置。
(請求項6)
用紙を折り畳む折り手段と、請求項1〜5のいずれか1項に記載の用紙断裁装置を有することを特徴とする用紙後処理装置。
(請求項7)
用紙に画像を形成する画像形成装置と、請求項1〜5のいずれか1項に記載の用紙断裁装置を有することを特徴とする画像形成システム。
The object is achieved by any of the following inventions.
(Claim 1)
A cutting blade for cutting paper,
A blade drive mechanism for cutting the paper by moving the cutting blade in a first direction along at least the paper surface of the paper at the cutting position;
A paper cutting device having a blade receiving member for receiving the cutting blade at the cutting position,
A sheet cutting device comprising: a receiving member driving mechanism for displacing the blade receiving member in a second direction intersecting with the first direction.
(Claim 2)
The sheet cutting device according to claim 1, wherein the receiving member driving mechanism displaces the blade receiving member in only one of the second directions.
(Claim 3)
A sheet pressing member that moves between an operating position for pressing the sheet at the cutting position and a retracted position; and the blade receiving member is provided to be displaceable with respect to the sheet pressing member by the receiving member driving mechanism. The sheet cutting apparatus according to claim 1 or 2, characterized in that
(Claim 4)
The sheet cutting device according to claim 3, further comprising a pressing member driving mechanism that moves the sheet pressing member to the operating position and the retracted position.
(Claim 5)
5. The sheet cutting apparatus according to claim 1, further comprising a control unit configured to operate the receiving member driving mechanism and to displace the blade receiving member every predetermined number of cutting operations.
(Claim 6)
A sheet post-processing apparatus comprising: a folding unit that folds a sheet; and the sheet cutting apparatus according to claim 1.
(Claim 7)
An image forming system comprising: an image forming apparatus that forms an image on a sheet; and the sheet cutting apparatus according to claim 1.

請求項1〜7のいずれかに記載の発明により、小電力で駆動可能、且つ、小型であり、しかも枚数の多少にかかわらず、処理仕上がりのよい断裁処理が可能な用紙断裁装置が実現される。また、用紙を支持する刃受け部材が未使用部に変位されつつ断裁が行われるので、断裁刃により刃受け部材に形成される刻み溝が常に許容範囲内の深さに抑えられ、切り残し、断裁面の不揃い等の断裁不良が防止される。   According to the invention described in any one of claims 1 to 7, a paper cutting device that can be driven with low power, is small, and can perform a cutting process with a good processing finish regardless of the number of sheets is realized. . Further, since cutting is performed while the blade receiving member supporting the paper is displaced to the unused portion, the cut groove formed in the blade receiving member by the cutting blade is always suppressed to a depth within an allowable range, and is left uncut. Cutting defects such as uneven cutting surfaces are prevented.

請求項2の発明により、刃受け部材が未使用部に更新されつつ断裁が行われる。よって、より断裁不良を防止できる。   According to the invention of claim 2, cutting is performed while the blade receiving member is updated to the unused portion. Therefore, cutting defects can be prevented more.

請求項5の発明により、刃受け部材の未使用部に自動的に更新されるので、長期間にわたって良好な断裁性能が安定して維持される。   According to the invention of claim 5, since the blade receiving member is automatically updated to an unused portion, good cutting performance is stably maintained over a long period of time.

請求項6の発明により、少数枚から多数枚までの様々な厚さの冊子を作成することができる小型の用紙後処理装置が実現される。   According to the sixth aspect of the present invention, a small paper post-processing apparatus capable of producing booklets with various thicknesses from a small number to a large number is realized.

請求項7の発明により、少数枚から多数枚までの様々な厚さの冊子を作成することができる小型の画像形成システムが実現される。   According to the seventh aspect of the present invention, a small image forming system capable of creating booklets with various thicknesses from a small number to a large number is realized.

以下に、本発明の実施の形態を図を参照しながら説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図1は本発明の要旨断裁装置及び用紙後処理装置を有する画像形成システムの全体構成図である。   FIG. 1 is an overall configuration diagram of an image forming system having a summary cutting apparatus and a sheet post-processing apparatus according to the present invention.

Aは画像形成装置、DFは自動原稿送り装置、LTは大容量給紙装置、Bは後処理装置である。   A is an image forming apparatus, DF is an automatic document feeder, LT is a large capacity feeder, and B is a post-processing apparatus.

画像形成装置Aは、画像読み取り部(画像入力装置)1、画像処理部2、画像書き込み部3、画像形成部4、給紙カセット5A、5B、5C、手差し給紙トレイ5D、第1給紙部6A、6B、6C、6D、6E、レジストローラ6F、定着装置7、排紙部8、自動両面コピー給紙部(ADU)8B等を備えている。   The image forming apparatus A includes an image reading unit (image input device) 1, an image processing unit 2, an image writing unit 3, an image forming unit 4, paper feed cassettes 5A, 5B, and 5C, a manual paper feed tray 5D, and a first paper feed. Units 6A, 6B, 6C, 6D, and 6E, registration rollers 6F, a fixing device 7, a paper discharge unit 8, an automatic double-sided copy paper supply unit (ADU) 8B, and the like.

画像形成装置Aの上部には、自動原稿送り装置DFが搭載され、図の左側面には、後処理装置Bが一体的に連結されている。   An automatic document feeder DF is mounted on the upper part of the image forming apparatus A, and a post-processing apparatus B is integrally connected to the left side of the drawing.

自動原稿送り装置DFの原稿台の上に載置された原稿dは矢印方向に搬送され画像読み取り部1の光学系により原稿の片面又は両面の画像が、イメージセンサCCD1Aに読み込まれる。   The document d placed on the document table of the automatic document feeder DF is conveyed in the direction of the arrow, and an image on one or both sides of the document is read into the image sensor CCD 1A by the optical system of the image reading unit 1.

イメージセンサCCD1Aにより光電変換されたアナログ信号は、画像処理部2において、アナログ処理、A/D変換、シェーディング補正、画像圧縮処理等が行われた後、画像書き込み部3に画像情報信号として送られる。   The analog signal photoelectrically converted by the image sensor CCD 1A is subjected to analog processing, A / D conversion, shading correction, image compression processing, and the like in the image processing unit 2, and then sent to the image writing unit 3 as an image information signal. .

画像形成部4は、電子写真プロセスを用いて画像形成する部位であり、感光体ドラム4Aに対して帯電、露光、現像、転写、分離、クリーニング等の処理が行われる。前記露光処理の工程では前記画像情報信号に基づく半導体レーザ(不図示)の出力光が感光体ドラム4Aに照射され静電潜像が形成される。更に、前記現像処理の工程では、前記静電潜像に対応したトナー像が形成される。   The image forming unit 4 is a part where an image is formed using an electrophotographic process, and processing such as charging, exposure, development, transfer, separation, and cleaning is performed on the photosensitive drum 4A. In the exposure processing step, output light of a semiconductor laser (not shown) based on the image information signal is applied to the photosensitive drum 4A to form an electrostatic latent image. Further, in the developing process, a toner image corresponding to the electrostatic latent image is formed.

給紙カセット5A〜5C、手差し給紙トレイ5D、大容量給紙装置LT、及び、それらに対応した第1給紙部6A〜6Eのうちいずれかが選択されると、用紙Sが、レジストローラ6Fに向けて搬送される。用紙Sはレジストローラ6Fにより感光体ドラム4Aのトナー像と同期が取られて、転写手段4Bに向けて搬送されトナー像が転写される。   When any one of the sheet feeding cassettes 5A to 5C, the manual sheet feeding tray 5D, the large capacity sheet feeding device LT, and the first sheet feeding units 6A to 6E corresponding thereto is selected, the sheet S is registered as a registration roller. It is transported toward 6F. The sheet S is synchronized with the toner image on the photosensitive drum 4A by the registration roller 6F, and is conveyed toward the transfer unit 4B to transfer the toner image.

トナー像を担持した用紙Sは定着装置7により定着され、排紙部8から後処理装置Bに送り込まれる。   The sheet S carrying the toner image is fixed by the fixing device 7 and sent from the paper discharge unit 8 to the post-processing device B.

両面画像形成の場合には、片面に画像形成された用紙Sは搬送路切り換え板8Aにより自動両面コピー給紙部8Bに送り込まれ、画像形成部4において反対側の面に画像形成が行われ、定着装置7により定着された後、排出部8から後処理装置Bに送り込まれる。   In the case of double-sided image formation, the sheet S image-formed on one side is sent to the automatic double-sided copy paper feeding unit 8B by the conveyance path switching plate 8A, and image formation is performed on the opposite side in the image forming unit 4, After fixing by the fixing device 7, the paper is sent from the discharge unit 8 to the post-processing device B.

次に、後処理装置Bの概要について、図2、図3、図4、及び、図5を用いて説明する。   Next, an outline of the post-processing apparatus B will be described with reference to FIGS. 2, 3, 4, and 5.

図2は本発明の実施の形態に係る後処理装置の正面図、図3は右側面図、図4は左側面図、図5は後処理装置における用紙の流れの一部を示す模式図である。   2 is a front view of the post-processing apparatus according to the embodiment of the present invention, FIG. 3 is a right side view, FIG. 4 is a left side view, and FIG. 5 is a schematic diagram showing a part of the flow of paper in the post-processing apparatus. is there.

各図において、矢印X、Y、Zは方向を表す直交座標軸であり、各座標の正方向をX方向、Y方向、Z方向と称し、負方向は逆X方向、逆Y方向、逆Z方向と称するものとする。   In each figure, arrows X, Y, and Z are orthogonal coordinate axes representing directions, and the positive direction of each coordinate is referred to as the X direction, Y direction, and Z direction, and the negative direction is the reverse X direction, reverse Y direction, and reverse Z direction. Shall be referred to as

なお、紙面に直交し、表面方向に矢印が向いている場合を◎、紙面裏面方向に矢印が向いている場合を○で表す。   In addition, the case where the arrow is orthogonal to the paper surface and the arrow is directed to the front surface direction is represented by ◎, and the case where the arrow is directed to the rear surface surface is represented by ◯.

画像形成装置で画像形成された用紙Sは、後処理装置Bの入り口部で搬送路切り換え手段により、何も処理せずにそのまま排出する搬送路、或いは、中折り処理、及び、中綴じ処理を行う搬送路のどちらかに搬送される。   The sheet S on which the image has been formed by the image forming apparatus is subjected to a conveyance path that is discharged as it is without being processed by the conveyance path switching means at the entrance of the post-processing apparatus B, or a half-folding process and a saddle stitching process. It is transported to either of the transport paths to be performed.

中折り処理、及び、中綴じ処理を行う搬送路に送り込まれた用紙Sは複数枚重ねられた状態で中折りされ、逆V字形状をした積載手段に積載されて、積載枚数が所定枚数に達した後中綴じ処理が行われた後、用紙取り出し手段により取り出されて、本発明に係わる断裁装置により小口断裁された後排出される。   A plurality of sheets S sent to the conveyance path for performing the half-folding process and the saddle stitching process are folded in a stacked state, stacked on a reverse V-shaped stacking unit, and the number of stacked sheets reaches a predetermined number. After reaching, the saddle stitching process is performed, and then the sheet is taken out by the paper take-out means, cut by the cutting device according to the present invention, and then discharged.

先ず、図2を用いて、搬送路R1に入った用紙Sの搬送経路について説明する。   First, the transport path of the paper S that has entered the transport path R1 will be described with reference to FIG.

搬送路切り換え手段GD1により搬送路R1に送り込まれた用紙Sは、搬送ローラ203〜207に挟持されて搬送され、搬送路切り換え手段GD2の上方の搬送路R3又は下方の搬送路R4のいずれかに搬送される。   The sheet S sent to the conveyance path R1 by the conveyance path switching unit GD1 is nipped and conveyed by the conveyance rollers 203 to 207, and is transferred to either the conveyance path R3 above the conveyance path switching means GD2 or the conveyance path R4 below. Be transported.

上方の搬送路R3に搬送された用紙Sは、排紙ローラ208によって、後処理装置Bの上部に配置されたサブ排紙トレイ(トップトレイ)209に排紙される。   The paper S transported to the upper transport path R3 is discharged by a paper discharge roller 208 to a sub paper discharge tray (top tray) 209 disposed at the top of the post-processing apparatus B.

下方の搬送路R4に搬送された用紙Sは、搬送ローラ210〜213に挟持されて搬送され、排紙ローラ214によって他の後処理装置等に送り込まれる。   The sheet S conveyed to the lower conveyance path R4 is nipped and conveyed by the conveyance rollers 210 to 213, and is sent to another post-processing device or the like by the paper discharge roller 214.

次に、図2、図5を用いて、搬送路R2に入った用紙Sの搬送について説明する。   Next, the conveyance of the sheet S that has entered the conveyance path R2 will be described with reference to FIGS.

搬送路切り換え手段GD1により搬送路R2に入った用紙Sは、逆Y方向に搬送され、所定位置(図に示す位置P1)に一時停止して収納される。   The sheet S that has entered the transport path R2 by the transport path switching unit GD1 is transported in the reverse Y direction, and is temporarily stopped and stored at a predetermined position (position P1 shown in the drawing).

位置P1において、後続の少数枚の用紙Sが重ね合わされて収納される。   At the position P1, the subsequent small number of sheets S are stacked and stored.

上記の収納枚数は本実施の形態では3枚であるが、収納枚数はこれに限定されることはなく適宜設定することが出来る。   Although the number of stored sheets is three in the present embodiment, the number of stored sheets is not limited to this and can be set as appropriate.

位置P1に収容された3枚の用紙Sは重ね合わされた状態で、搬送ローラ215、216、案内板(不図示)等により、Z方向に搬送された後、X方向に偏向され、位置P2に一時停止する(搬送路R5)。   The three sheets S accommodated at the position P1 are superposed and conveyed in the Z direction by conveying rollers 215, 216, guide plates (not shown), etc., and then deflected in the X direction to the position P2. Stop temporarily (conveyance path R5).

なお、以下の説明において、特に断りのない限り、複数枚の用紙が重なったものを用紙束SSという。   In the following description, a stack of a plurality of sheets is referred to as a sheet bundle SS unless otherwise specified.

位置P2に一時停止した用紙束SSは所定のタイミングで搬送ローラ217、218、案内板等によりY方向に搬送された後逆Z方向に偏向される(搬送路R6)。   The sheet bundle SS temporarily stopped at the position P2 is transported in the Y direction by transport rollers 217 and 218, a guide plate, and the like at a predetermined timing and then deflected in the reverse Z direction (transport path R6).

逆Z方向に偏向された用紙束SSは搬送整合ベルト220により、用紙を折り畳む折り手段の一例である中折り手段230に送られる。   The sheet bundle SS deflected in the reverse Z direction is sent by the conveyance alignment belt 220 to a center folding unit 230 that is an example of a folding unit that folds the sheet.

ここで、中折り手段230について図3を用いて説明する。   Here, the center folding means 230 will be described with reference to FIG.

本実施の形態においては、用紙束SSの長辺方向が搬送整合ベルト220の搬送方向と一致するように構成されている。   In the present embodiment, the long side direction of the sheet bundle SS is configured to coincide with the conveyance direction of the conveyance alignment belt 220.

中折り手段230は、整合部材232、中折りローラ234、235、中折りナイフ236等から構成されている。   The middle folding means 230 includes an alignment member 232, middle folding rollers 234 and 235, a middle folding knife 236, and the like.

整合板232は中折りローラ234と235との当接点から用紙束SSの長辺方向の長さの半分の長さの位置に配設されている。   The alignment plate 232 is disposed at a position half the length of the sheet bundle SS in the long side direction from the contact point between the center folding rollers 234 and 235.

逆Z方向に搬送された用紙束SSは、搬送整合ベルト220に設けられた整合爪221により押されて後述する中折り用紙搬送手段250を構成するガイド板251上を搬送され、用紙束SSの先端部が整合部材232に突き当たる位置で停止する。   The sheet bundle SS conveyed in the reverse Z direction is pushed by an alignment claw 221 provided on the conveyance alignment belt 220 and conveyed on a guide plate 251 that constitutes a half-folded sheet conveyance means 250 described later. The front end stops at a position where it abuts against the alignment member 232.

続いて、搬送整合ベルト220の正逆回転により整合爪221が後退前進動作を行い、用紙束SS(3枚)の後端が押圧され搬送方向の幅が揃えられる。   Subsequently, the alignment claw 221 moves backward and forward by forward / reverse rotation of the conveyance alignment belt 220, and the rear end of the sheet bundle SS (three sheets) is pressed to align the width in the conveyance direction.

上述した揃え動作完了後、中折りローラ234、235の当接点下方に設けられた中折りナイフ236がガイド板251上の用紙束SSの長辺方向中央部を押し上げ、図に示す矢印方向に回転する中折りローラ234、235に用紙束SSを食い込ませる。   After completion of the aligning operation described above, the center folding knife 236 provided below the contact points of the center folding rollers 234 and 235 pushes up the central portion in the long side direction of the sheet bundle SS on the guide plate 251 and rotates in the arrow direction shown in the figure. The sheet bundle SS is digged into the folding rollers 234 and 235.

食い込んだ用紙束SSは中折りローラ234、235により長辺方向中央部に折り目が付けられた後、中折りローラ234、235の逆方向の回転によりガイド板251上に戻され、後述する中折り用紙搬送手段250によりX方向に搬送される。   The cut sheet bundle SS is folded at the center in the long side direction by the center folding rollers 234 and 235, and then returned to the guide plate 251 by the reverse rotation of the center folding rollers 234 and 235. The paper is conveyed in the X direction by the paper conveying means 250.

用紙サイズが変更された場合には、不図示の制御手段により整合板232の位置、搬送整合ベルト220の動作等が用紙サイズに応じて変更されるように構成されている。   When the paper size is changed, the position of the alignment plate 232, the operation of the conveyance alignment belt 220, and the like are changed according to the paper size by a control unit (not shown).

なお、ローラ237、折りナイフ238等を用いて用紙束SSに対してZ折り(3つ折り)を行うことも可能である。   It is also possible to perform Z-folding (three-folding) on the sheet bundle SS using the roller 237, the folding knife 238, and the like.

図2、図5に戻って、長辺方向中央部に折り目が付けられた用紙束SSは中折り用紙搬送手段250の搬送ベルトに設けられた搬送爪252、及び、図示しない案内板等によりX方向に搬送され、積載手段310に積載される(搬送路R7)。   2 and 5, the sheet bundle SS with a crease at the center portion in the long-side direction is printed by a conveying claw 252 provided on the conveying belt of the half-folded sheet conveying means 250 and a guide plate (not shown). Is transported in the direction and stacked on the stacking means 310 (transport path R7).

次に、積載手段310、中綴じ手段を構成する打針手段350及び受針手段370について図4を用いて説明する。   Next, the stacking means 310, the needle hitting means 350 and the needle receiving means 370 constituting the saddle stitching means will be described with reference to FIG.

積載手段310は、逆V字形状をした折り目支持部材311と、同じく逆V字形状をした辺縁支持部材312とからなり、折り目支持部材311は、折り目が付けられた用紙束SSの谷側面(下面)の折り目a近傍を支持し、辺縁支持部材312は、折り目が付けられた用紙束SSの谷側面の辺縁部を支持する。   The stacking unit 310 includes a fold support member 311 having an inverted V shape and a peripheral support member 312 having an inverted V shape. The fold support member 311 has a valley side surface of the folded sheet bundle SS. The vicinity of the crease a on the (lower surface) is supported, and the edge support member 312 supports the edge of the valley side surface of the sheet bundle SS with the crease.

ここで、折り目が付けられた用紙束SSの谷側面とは、用紙に折り目に沿って折り曲げた時に、内側で互いに対向する用紙面のことをいい、外側の用紙面を山側面という。   Here, the valley side surface of the folded sheet bundle SS refers to a sheet surface that faces each other on the inner side when the sheet is folded along the crease, and the outer sheet surface is referred to as a mountain side surface.

積載手段310の上方には、上下方向に移動可能な押さえ手段330、及び、固定の打針手段350が配置されている。   Above the stacking means 310, a pressing means 330 movable in the vertical direction and a fixed needle hitting means 350 are arranged.

積載された用紙束SSの折り目aの下方には、受針手段370が上下方向に移動可能に配設されている。   A needle receiving means 370 is arranged below the fold line a of the stacked sheet bundle SS so as to be movable in the vertical direction.

用紙綴じ手段である打針手段350及び受針手段370は、用紙折り目方向にみて中央振り分け2箇所に配置されている。   The needle-stitching means 350 and the needle-receiving means 370, which are paper binding means, are disposed at two locations in the central distribution as viewed in the paper crease direction.

上記構成により、積載手段310に積載された用紙束SSが所定枚数に達すると、押さえ手段330が下降し用紙束SSを押さえた状態で、受針手段370が上昇し、打針手段350によりステープル針が用紙束SSの折り目部の2箇所に打針される。   With the above configuration, when the sheet bundle SS stacked on the stacking means 310 reaches a predetermined number, the holding means 330 is lowered and the needle receiving means 370 is raised while the sheet bundle SS is being pressed down, and the staple hitting means 350 causes the staple needles to rise. Are hit at two places in the fold portion of the sheet bundle SS.

次に、図2、図4を用いて、中綴じ処理された用紙束SSの取り出しについて説明する。   Next, taking out of the sheet bundle SS subjected to the saddle stitching process will be described with reference to FIGS.

用紙束SSを取り出す取り出し手段420は、支持手段421、駆動手段(参照符号無し)等で構成されている。   The take-out means 420 for taking out the sheet bundle SS includes a support means 421, a drive means (without reference numerals), and the like.

支持手段421は、積載手段310に積載された用紙束SSの両端部に配設された支持部材422、423を有しており、当該支持部材422、423は、用紙束SSの折り目部を支持するために一端が直角に曲げられた折り曲げ部422A、423Aを有する棒状部材で形成されている。   The support unit 421 includes support members 422 and 423 disposed at both ends of the sheet bundle SS stacked on the stacking unit 310, and the support members 422 and 423 support the folds of the sheet bundle SS. In order to achieve this, it is formed of a rod-shaped member having bent portions 422A and 423A whose one ends are bent at a right angle.

支持部材422、423の他端は支持軸424の周りに回動自在に支持されている。   The other ends of the support members 422 and 423 are rotatably supported around the support shaft 424.

支持部材422、423は、図2の左右方向にみて、前記駆動手段により、積載された用紙束SSを支持するために用紙束SSの折り目部に挿脱可能に構成されている。   The support members 422 and 423 are configured to be detachable with respect to the fold portion of the sheet bundle SS in order to support the stacked sheet bundle SS by the driving means when viewed in the left-right direction in FIG.

また、支持部材422、423は、図4に示すように、前記駆動手段により、積載手段310に積載された用紙束SSを取り出す取り出し位置と用紙束SSを受け取りコンベア500に移載する受け渡し位置との間を、支持軸424を中心にして揺動する。   Further, as shown in FIG. 4, the support members 422 and 423 have a take-out position for taking out the sheet bundle SS stacked on the stacking means 310 and a delivery position for receiving the sheet bundle SS on the conveyor 500 by the driving means. Oscillate around the support shaft 424.

斯かる構成により、積載手段310に積載された用紙束SSが所定枚数に達し、中綴じ手段により中綴じ処理が完了すると、支持部材422、423は積載された用紙の折り目部近傍に挿入され用紙束SSの折り目部を支持した後、前記取り出し位置から前記受け渡し位置に回動し、受け取りコンベア500上に載置し、載置された用紙束SSをグリップ501で挟持する。   With such a configuration, when the sheet bundle SS stacked on the stacking unit 310 reaches a predetermined number and the saddle stitching unit completes the saddle stitching process, the support members 422 and 423 are inserted in the vicinity of the folds of the stacked sheets. After supporting the fold portion of the bundle SS, the bundle SS is rotated from the take-out position to the delivery position, placed on the receiving conveyor 500, and the placed sheet bundle SS is sandwiched by the grip 501.

グリップ501で挟持された用紙束SSは受け取りコンベア500の回動に連動して斜め下方に搬送され、グリップ501から開放された後、断裁コンベア600に受け渡される。   The sheet bundle SS sandwiched between the grips 501 is conveyed obliquely downward in conjunction with the rotation of the receiving conveyor 500, released from the grips 501, and then delivered to the cutting conveyor 600.

断裁コンベア600は用紙束SSが受け渡された後には水平状態になり、続いて、用紙束SSは後述する折り目押さえ部材により折り目部を押さえられた状態で断裁手段700側に搬送され所定位置に停止し、不揃いになっている小口(折り目の反対側の自由端部)が本発明に係わる断裁装置700により断裁され小口が揃えられる。   After the sheet bundle SS is delivered, the cutting conveyor 600 is in a horizontal state, and then the sheet bundle SS is conveyed to the cutting unit 700 side with a fold portion pressed by a fold pressing member described later and is moved to a predetermined position. The fore edge (the free end on the opposite side of the crease) that has stopped and is not aligned is cut by the cutting device 700 according to the present invention to align the fore edges.

断裁処理が終了すると用紙束SSは断裁コンベア600により逆方向に搬送され、断裁コンベア600の先端部から矢示方向に落下し回収コンベア800により回収され、後処理装置Bの前面外側に配置された排紙トレイ850に排出される。   When the cutting process is completed, the sheet bundle SS is conveyed in the reverse direction by the cutting conveyor 600, dropped from the front end portion of the cutting conveyor 600 in the direction indicated by the arrow, and collected by the collection conveyor 800, and disposed outside the front surface of the post-processing apparatus B. The paper is discharged to a paper discharge tray 850.

次に、図6〜図8を用いて本発明に係わる断裁装置700の詳細について説明する。   Next, details of the cutting apparatus 700 according to the present invention will be described with reference to FIGS.

先ず、図6を用いて、中折り、中綴じされた用紙束SSを受け取りコンベア500から断裁コンベア600に受け渡し、受け渡し後断裁装置700にて小口断裁をするために所定位置に停止させるための機構について説明する。   First, referring to FIG. 6, a mechanism for passing the folded and saddle-stitched sheet bundle SS from the receiving conveyor 500 to the cutting conveyor 600 and stopping the paper bundle SS at a predetermined position in order to perform small-edge cutting by the cutting apparatus 700 after the transfer. Will be described.

図6は、断裁コンベア600及び用紙束SSの搬送機構の模式図である。   FIG. 6 is a schematic diagram of a cutting mechanism 600 and a conveyance mechanism for the sheet bundle SS.

図6(a)に示すように、受け取りコンベア500の用紙搬送方向下流側終点付近でグリップ501が開き、挟持していた用紙束SSを解放する。   As shown in FIG. 6A, the grip 501 is opened near the downstream end of the receiving conveyor 500 in the sheet conveyance direction, and the nipped sheet bundle SS is released.

解放された用紙束SSは、傾斜して停止している断裁コンベアー600の搬送ベルト601の上側のベルトに近接し、平行に設けられた用紙載置台602上の斜面を滑り、搬送ベルト601に固定されたストッパ爪603に当接し停止する。   The released sheet bundle SS is close to the belt on the upper side of the conveying belt 601 of the cutting conveyor 600 that is inclined and stopped, and slides on the inclined surface on the paper placing table 602 provided in parallel, and is fixed to the conveying belt 601. The stopper pawl 603 comes into contact with and stops.

用紙束SSの停止後、整合部材604が図の実線で示す位置から点線で示す位置に回動する。   After stopping the sheet bundle SS, the alignment member 604 is rotated from the position indicated by the solid line to the position indicated by the dotted line.

整合部材604の回動後、搬送ベルト601が図の矢印Fで示す方向に移動し、ストッパ爪603により用紙束SSの折り目部を整合部材604に当接させて停止する。   After the alignment member 604 is rotated, the conveying belt 601 moves in the direction indicated by the arrow F in the figure, and the fold portion of the sheet bundle SS is brought into contact with the alignment member 604 by the stopper claw 603 and stopped.

このように、用紙束SSを整合部材604に当接させることにより用紙の搬送方向の曲がりが修正される。   As described above, the sheet bundle SS is brought into contact with the aligning member 604 to correct the bending in the sheet conveyance direction.

ストッパ爪603の停止後、折り目押さえ部材605が、図の矢印Gで示す方向に下降して、用紙載置台602とほぼ同じ平面を有するように設けられた受け板606との間に用紙束SSを挟持する。   After stopping the stopper claw 603, the crease pressing member 605 descends in the direction indicated by the arrow G in the figure, and the sheet bundle SS is placed between the receiving plate 606 provided so as to have substantially the same plane as the sheet placing table 602. Pinch.

用紙束SSの挟持が完了すると、断裁コンベア600が回転しストッパ爪603は、図の点線で示す位置に退避する。   When the clamping of the sheet bundle SS is completed, the cutting conveyor 600 is rotated and the stopper claw 603 is retracted to a position indicated by a dotted line in the drawing.

ストッパ爪603の退避が完了すると、整合部材604、折り目押さえ部材605及び受け板606は用紙束SSを挟持したまま、断裁コンベア600と一体的に、断裁コンベア600のプーリ607の中心を支点として、図6(b)に示す水平位置に回動し停止する。   When the stopper claw 603 is retracted, the alignment member 604, the crease pressing member 605, and the receiving plate 606 are integrated with the cutting conveyor 600 while holding the sheet bundle SS, with the center of the pulley 607 of the cutting conveyor 600 as a fulcrum. It rotates to the horizontal position shown in FIG.

断裁コンベア600の回動が完了すると、用紙束SSは折り目押さえ部材605及び受け板606により挟持されたまま、用紙載置台602上を滑りながら、図の矢印H方向に移動し、各用紙のサイズによって決められた所定の位置に停止する。   When the rotation of the cutting conveyor 600 is completed, the sheet bundle SS is moved in the direction of arrow H in the figure while sliding on the sheet placing table 602 while being held between the crease holding member 605 and the receiving plate 606, and the size of each sheet Stops at a predetermined position determined by.

所定位置に停止した用紙束SSは、用紙断裁装置700によって小口を断裁されるが、その断裁機構について、図7〜9を用いて説明する。   The sheet bundle SS stopped at a predetermined position is cut at the fore edge by the sheet cutting apparatus 700. The cutting mechanism will be described with reference to FIGS.

用紙断裁装置700の上部には、用紙断裁装置の枠体700Aに支持された軸708が設けられる。軸708には、互いに反対方向の雄ネジ708A、708Bが設けられ、雄ネジ708Aには雌ネジユニット706が、雄ネジ708Bには雌ネジユニット707がそれぞれ螺合する。   A shaft 708 supported by a frame 700 </ b> A of the paper cutting device is provided on the upper portion of the paper cutting device 700. The shaft 708 is provided with male screws 708A and 708B in opposite directions. The female screw unit 706 and the female screw unit 707 are respectively engaged with the male screw 708A and the male screw 708B.

上下動可能な小口押さえ部材701と雌ネジユニット706、707とを連結棒704、705が連結する。すなわち、連結棒704の上端は雌ネジユニット706に、下端は小口押さえ部材701の左端部に回転自在にそれぞれ支持される。同様に、連結棒705の上端は雌ネジユニット707に、下端は小口押さえ部材701の右端部にそれぞれ回転自在に支持される。軸708はモータ709と歯車G1を介して連結され、モータ709の回転により、雌ネジユニット706、707が左右に移動し、連結棒704、705の傾斜が変化して、小口押さえ部材701は上下に平行移動する。   The connecting rods 704 and 705 connect the small edge holding member 701 that can move up and down and the female screw units 706 and 707. That is, the upper end of the connecting rod 704 is rotatably supported by the female screw unit 706 and the lower end is rotatably supported by the left end portion of the fore edge pressing member 701. Similarly, the upper end of the connecting rod 705 is rotatably supported by the female screw unit 707, and the lower end is rotatably supported by the right end portion of the fore edge pressing member 701. The shaft 708 is connected to the motor 709 via the gear G1, and the rotation of the motor 709 moves the female screw units 706 and 707 to the left and right, and the inclination of the connecting rods 704 and 705 is changed. Translate to.

このように、モータ709、軸708、雌ネジユニット706、707及び連結棒704、705は小口押さえ部材701を平行に上下動させる押さえ部材駆動機構を構成する。   Thus, the motor 709, the shaft 708, the female screw units 706 and 707, and the connecting rods 704 and 705 constitute a pressing member driving mechanism that moves the fore edge pressing member 701 up and down in parallel.

用紙束SSは固定の支持台702と刃受け部材701Aとの間に保持される。小口押さえ部材701は、雄ネジ708A,708Bを含む大きな減速比の駆動機構により駆動されるので、高い圧力で用紙束SSを押さえ保持する。刃受け部材701Aはポリプロピレン樹脂等の樹脂材で構成された板状部材である。   The sheet bundle SS is held between the fixed support base 702 and the blade receiving member 701A. The fore edge pressing member 701 is driven by a driving mechanism having a large reduction ratio including the male screws 708A and 708B, and holds and holds the sheet bundle SS with a high pressure. The blade receiving member 701A is a plate-like member made of a resin material such as polypropylene resin.

上端縁に刃先が形成された断裁刃703には、コロ715、716が固定され、コロ715、716は右下がりに傾斜したガイド部材717、718にそれぞれガイドされる。ガイド部材717、718は図示しないが、枠体700Aに固定される。   Rollers 715 and 716 are fixed to a cutting blade 703 having a cutting edge formed at the upper edge, and the rollers 715 and 716 are respectively guided by guide members 717 and 718 inclined downward to the right. Although guide members 717 and 718 are not shown, they are fixed to the frame 700A.

刃駆動部材725は図示しないが、雄ネジ7726、727に螺合する雌ネジを有し、雄ネジ726、727により駆動されて左右に平行移動する。雄ネジ726、727は歯車G2〜G5を介してモータ728により駆動される。一方刃駆動部材725には、垂直な長孔725Aが設けられ、長孔725Aには、断裁刃703の基部703Aに固定された2本のピン719が嵌入する。   Although not shown, the blade driving member 725 has a female screw threadedly engaged with the male screws 7726 and 727, and is driven by the male screws 726 and 727 so as to move parallel to the left and right. The male screws 726 and 727 are driven by a motor 728 through gears G2 to G5. On the other hand, the blade driving member 725 is provided with a vertical long hole 725A, and two pins 719 fixed to the base 703A of the cutting blade 703 are fitted into the long hole 725A.

モータ728、歯車G2〜G5、雄ネジ726、727、刃駆動部材725は断裁刃703の刃駆動機構を構成し、モータ728の回転により、断裁刃703は左右に移動する。断裁刃703はガイド部材717、718のガイドにより、用紙束SSの紙面に沿った第1方向である水平成分と上下成分の合成した斜め方向すなわち、矢印Jで示す運動をする。このように、断裁刃703はモータ728の駆動により、矢印Jで示すように、斜めに移動する。   The motor 728, the gears G2 to G5, the male screws 726 and 727, and the blade driving member 725 constitute a blade driving mechanism of the cutting blade 703, and the cutting blade 703 moves left and right by the rotation of the motor 728. The cutting blade 703 moves by the guide of the guide members 717 and 718, as shown by an arrow J, that is, an oblique direction in which the horizontal component and the vertical component, which are the first direction along the sheet surface of the sheet bundle SS, are combined. In this way, the cutting blade 703 moves obliquely as indicated by the arrow J by driving the motor 728.

図8、9に示すように、小口押さえ部材701の下端部は刃受け部材701Aで構成されており、刃受け部材710Aは小口押さえ部材701にその端部に設けられた凹部720により保持されており、小口押さえ部材701に対して、矢印Kで示すように、断裁刃703の長手方向であり、方向Jの水平成分である第1方向に直交する方向にスライド可能である。   As shown in FIGS. 8 and 9, the lower end portion of the fore edge pressing member 701 is constituted by a blade receiving member 701 </ b> A, and the edge receiving member 710 </ b> A is held by a recess 720 provided at the end of the fore edge holding member 701. As shown by an arrow K, the edge pressing member 701 is slidable in the longitudinal direction of the cutting blade 703 and in a direction orthogonal to the first direction which is the horizontal component of the direction J.

刃受け部材701Aの両端部上面には、ラック722、723が形成され、これらは、小口押さえ部材701に設けられた開口701D、701Eにより上方に露出している。   Racks 722 and 723 are formed on the upper surfaces of both end portions of the blade receiving member 701A, and these are exposed upward by openings 701D and 701E provided in the fore edge holding member 701.

ラック722,723にはピニオンG7、G8がそれぞれ係合し、ピニオンG7、G8はそれぞれ軸730の両端部に固定された歯車G10、G11に係合する。軸730は一方向クラッチG12、歯車G9を介して、ソレノイドSLに連結される。すなわち、ソレノイドSLのプランジャ731に固定されたラック732が歯車G9に噛み合い、軸730は歯車G9の一方向の回転により駆動される。   Pinions G7 and G8 engage with the racks 722 and 723, respectively, and the pinions G7 and G8 respectively engage with gears G10 and G11 fixed to both ends of the shaft 730. The shaft 730 is connected to the solenoid SL via a one-way clutch G12 and a gear G9. That is, the rack 732 fixed to the plunger 731 of the solenoid SL meshes with the gear G9, and the shaft 730 is driven by the rotation of the gear G9 in one direction.

一方向クラッチG12の作用によって、ソレノイドSLのオンによるプランジ731の上昇運動のみが、歯車G9を介して軸730に伝達され、ソレノイドSLがオフして、プランジャ731が降下する運動は軸730に伝達されない。   By the action of the one-way clutch G12, only the upward movement of the plunge 731 due to the solenoid SL being turned on is transmitted to the shaft 730 via the gear G9, and the movement of the solenoid SL being turned off and the plunger 731 descending is transmitted to the shaft 730. Not.

ソレノイドSL、ラック732、一方向クラッチG12、歯車G7〜G11、ラック722、723は刃受け部材701Aの受け部材駆動機構を構成し、ソレノイドSLの作動により、刃受け部材701Aは矢印K方向にのみ歩進する。このように、刃受け部材701Aは前記第2方向の1方向Kにのみ移動する。   The solenoid SL, the rack 732, the one-way clutch G12, the gears G7 to G11, the racks 722 and 723 constitute a receiving member driving mechanism of the blade receiving member 701A, and the operation of the solenoid SL causes the blade receiving member 701A to move only in the arrow K direction. Step forward. Thus, the blade receiving member 701A moves only in one direction K of the second direction.

次に、断裁装置700の作動を説明する。   Next, the operation of the cutting apparatus 700 will be described.

待機状態においては、雌ネジユニット706は左端に、雌ネジユニット707が右端に位置して、小口押さえ部材701は上限位置にある。   In the standby state, the female screw unit 706 is located at the left end, the female screw unit 707 is located at the right end, and the fore edge pressing member 701 is at the upper limit position.

用紙束SSが断裁装置700に導入されると、モータ709が起動して、雌ネジユニット706、707を駆動し、小口押さえ部材701が下降する。小口押さえ部材701が検知手段PSにより検知された位置で、モータ709が停止し、小口押さえ部材701が停止する。小口押さえ部材の停止位置は検知手段PSの位置設定により決定され、検知手段PSの位置は、用紙束SSを形成する用紙の枚数により決定される。従って、画像形成システムの操作部において、設定した用紙束SSを構成する用紙の枚数により、小口押さえ部材701の下降位置が設定される。   When the sheet bundle SS is introduced into the cutting apparatus 700, the motor 709 is activated to drive the female screw units 706 and 707, and the fore edge pressing member 701 is lowered. At the position where the fore edge pressing member 701 is detected by the detecting means PS, the motor 709 stops and the fore edge pressing member 701 stops. The stop position of the edge holding member is determined by the position setting of the detection means PS, and the position of the detection means PS is determined by the number of sheets forming the sheet bundle SS. Accordingly, in the operation unit of the image forming system, the lowering position of the fore edge pressing member 701 is set according to the number of sheets constituting the set sheet bundle SS.

小口押さえ部材701は、後に説明する断裁時に、多数枚重なった用紙に対して断裁刃703により横方向からの力が加わったときにもずれが生じないように大きな圧力で用紙束SSを押さえる。   The fore edge pressing member 701 presses the sheet bundle SS with a large pressure so that no deviation occurs even when a lateral force is applied to the stacked sheets by a cutting blade 703 at the time of cutting described later.

用紙束SSの押さえが完了した段階で、モータ728が起動して、断裁刃703を矢印Jの左上方に移動させる。断裁刃703のこの移動により、用紙束SSが断裁される。断裁刃703の断裁作用は、刃のスライドによる断裁なので、比較的小さな駆動力による断裁が可能であり、しかも、断裁する用紙の枚数が多くなっても、断裁刃のストロークが変わるのみで、駆動力は変わらない。   When the pressing of the sheet bundle SS is completed, the motor 728 is activated to move the cutting blade 703 to the upper left of the arrow J. By this movement of the cutting blade 703, the sheet bundle SS is cut. Since the cutting action of the cutting blade 703 is cutting by sliding the blade, cutting with a relatively small driving force is possible, and even if the number of sheets to be cut increases, only the stroke of the cutting blade changes. Power does not change.

積載用紙の全てが断裁されると、断裁刃703の刃先が刃受け部材701Aに接触して、断裁刃703の駆動力が増大する。この駆動力の増大、すなわち、モータ709の負荷の増大によるモータ駆動電流の増大を検知して、モータ709の駆動を停止する。このようにして、用紙束SSを構成する用紙の全てが断裁される。   When all the stacked sheets are cut, the cutting edge of the cutting blade 703 comes into contact with the blade receiving member 701A, and the driving force of the cutting blade 703 increases. This driving force increase, that is, an increase in motor driving current due to an increase in load on the motor 709 is detected, and the driving of the motor 709 is stopped. In this way, all the sheets constituting the sheet bundle SS are cut.

小口断裁処理が完了すると、モータ728が逆回転し、下刃703は図7の右斜め下方の所定位置に下降する。   When the fore edge cutting process is completed, the motor 728 rotates in the reverse direction, and the lower blade 703 descends to a predetermined position obliquely downward to the right in FIG.

下刃703の下降が完了すると、小口押さえ部材701が初期位置まで上昇する。   When the lowering of the lower blade 703 is completed, the fore edge pressing member 701 is raised to the initial position.

小口押さえ部材701の上昇完了後、用紙束SSの折り目部近傍を挟持していた折り目押さえ部材605及び受け板606が図6(b)に示す位置に戻ると、折り目押さえ部材605が上昇、整合部材604が用紙搬送面より下方に退避し、用紙束SSの挟持が解除される。   After the fore edge pressing member 701 is lifted, when the crease pressing member 605 and the receiving plate 606 holding the vicinity of the fold portion of the sheet bundle SS return to the position shown in FIG. 6B, the crease pressing member 605 is lifted and aligned. The member 604 is retracted below the sheet conveyance surface, and the nipping of the sheet bundle SS is released.

続いて、断裁コンベア600が回転し、ストッパ爪603により、小口断裁された用紙束SSは、図4に示すように、断裁コンベア600の先端部から矢示方向に落下し回動する回収コンベア800により搬送され、後処理装置Bの前面外側に配置された排紙トレイ850に排出される。   Subsequently, the cutting conveyor 600 is rotated, and the sheet bundle SS cut by the claw by the stopper claw 603 falls in the direction indicated by the arrow from the leading end of the cutting conveyor 600 and rotates as shown in FIG. And is discharged to a discharge tray 850 disposed outside the front surface of the post-processing apparatus B.

以上述べた一連の動作により、用紙束SSの小口断裁処理が完了する。   By the series of operations described above, the edge cutting process for the sheet bundle SS is completed.

断裁動作の繰り返しにより、刃受け部材701Aが断裁刃703により、僅かづつではあるが、切除される結果、図9に示すように、刃受け部材701Aに刻み溝Tが形成される。この刻み溝Tの深さが大きくなると、用紙の切り残し、断裁された小口の端面が平坦でなくなる等の断裁不良が発生する場合がある。   By repeating the cutting operation, the blade receiving member 701A is slightly cut by the cutting blade 703, but as a result, as shown in FIG. 9, a cut groove T is formed in the blade receiving member 701A. When the depth of the cut groove T is increased, cutting defects such as uncut paper and an end surface of the cut edge may not be flat may occur.

本発明においては、前記に説明したように、刃受け部材701Aを断裁刃703の移動方向Jのうちの用紙束SSの紙面の沿った方向の成分に交叉する方向の1方向Kに変位させて、刃受け部材701Aの未使用部分を断裁刃703の刃先を受ける位置に設定している。すなわち、ソレノイドSLを作動させることにより、前記に説明した受け部材駆動機構が作動して、刃受け部材701AをK方向に歩進させる。   In the present invention, as described above, the blade receiving member 701A is displaced in one direction K in the direction intersecting the component in the direction along the paper surface of the sheet bundle SS in the moving direction J of the cutting blade 703. The unused portion of the blade receiving member 701A is set to a position for receiving the cutting edge of the cutting blade 703. That is, by operating the solenoid SL, the receiving member driving mechanism described above is operated, and the blade receiving member 701A is advanced in the K direction.

これにより、図9に示すよう複数の刻み溝Tが形成されはするが、許容限度内の深さに制限することができ、刻み溝による断裁不良が発生することはない。   As a result, a plurality of cut grooves T are formed as shown in FIG. 9, but the depth can be limited to an allowable limit, and cutting defects due to the cut grooves do not occur.

図8における制御手段CRは断裁動作の回数をカウントし、カウント値が所定値、例えば、700回に達してときに、ソレノイドSLを作動させて、刃受け部材701Aを変位させる。   The control means CR in FIG. 8 counts the number of cutting operations, and when the count value reaches a predetermined value, for example, 700 times, the solenoid SL is operated to displace the blade receiving member 701A.

本発明の実施の形態に係る画像形成システムの全体構成図。1 is an overall configuration diagram of an image forming system according to an embodiment of the present invention. 後処理装置の概略正面図。The schematic front view of a post-processing apparatus. 図2の後処理装置の右側面図。The right view of the post-processing apparatus of FIG. 図2の後処理装置の左側面図。The left view of the post-processing apparatus of FIG. 後処理装置における用紙の流れの一部を示す模式図。FIG. 4 is a schematic diagram showing a part of the flow of paper in the post-processing apparatus. 断裁コンベア600及び用紙束SSの搬送機構の模式図。The schematic diagram of the conveyance mechanism of the cutting conveyor 600 and sheet bundle SS. 本発明の実施の形態に係る用紙断裁装置700の正面図。The front view of the paper cutting apparatus 700 which concerns on embodiment of this invention. 押さえ部材の斜視図である。It is a perspective view of a pressing member. 用紙断裁部の拡大図である。It is an enlarged view of a paper cutting part.

符号の説明Explanation of symbols

A 画像形成装置
B 後処理装置
700 用紙断裁装置
701 小口押さえ部材
701A 刃受け部材
703 断裁刃
703A 連結部
704、705 連結棒
706、707 雌ネジユニット
708 軸
709、728 モータ
715、716 コロ
717、718 ガイド部材
725 刃駆動部材
PS 検知手段
G1〜G11 歯車
G12 一方向クラッチ
SL ソレノイド
A Image forming device B Post-processing device 700 Paper cutting device 701 Small edge pressing member 701A Blade receiving member 703 Cutting blade 703A Connection portion 704, 705 Connection rod 706, 707 Female screw unit 708 Shaft 709, 728 Motor 715, 716 Roller 717, 718 Guide member 725 Blade drive member PS detection means G1 to G11 gear G12 one-way clutch SL solenoid

Claims (7)

用紙を断裁する断裁刃と、
断裁位置にある用紙に対して、前記断裁刃を少なくとも用紙の紙面に沿った第1方向に移動させて用紙を断裁する刃駆動機構と、
前記断裁位置において前記断裁刃を受ける刃受け部材とを有する用紙断裁装置であって、
前記第1方向と交叉する第2方向に前記刃受け部材を変位させる受け部材駆動機構を有することを特徴とする用紙断裁装置。
A cutting blade for cutting paper,
A blade drive mechanism for cutting the paper by moving the cutting blade in a first direction along at least the paper surface of the paper at the cutting position;
A paper cutting device having a blade receiving member for receiving the cutting blade at the cutting position,
A sheet cutting device comprising: a receiving member driving mechanism for displacing the blade receiving member in a second direction intersecting with the first direction.
前記受け部材駆動機構は、前記刃受け部材を、前記第2方向のうちの一方向にのみ変位させることを特徴とする請求項1に記載の用紙断裁装置。 The sheet cutting device according to claim 1, wherein the receiving member driving mechanism displaces the blade receiving member in only one of the second directions. 前記断裁位置で用紙を押さえる作動位置と退避位置との間を移動する用紙押さえ部材を有し、前記刃受け部材は前記受け部材駆動機構により、前記用紙押さえ部材に対して変位可能に設けられたことを特徴とする請求項1又は請求項2に記載の用紙断裁装置。 A sheet pressing member that moves between an operating position for pressing the sheet at the cutting position and a retracted position; and the blade receiving member is provided to be displaceable with respect to the sheet pressing member by the receiving member driving mechanism. The sheet cutting apparatus according to claim 1 or 2, characterized in that 前記用紙押さえ部材を前記作動位置と前記退避位置とに移動させる押さえ部材駆動機構を有することを特徴とする請求項3に記載の用紙断裁装置。 The sheet cutting device according to claim 3, further comprising a pressing member driving mechanism that moves the sheet pressing member to the operating position and the retracted position. 所定回数の断裁作動毎に前記受け部材駆動機構を作動させ、前記刃受け部材を変位させる制御手段を有することを特徴とする請求項1〜4のいずれか1項に記載の用紙断裁装置。 5. The sheet cutting apparatus according to claim 1, further comprising a control unit that operates the receiving member driving mechanism to displace the blade receiving member every predetermined number of cutting operations. 用紙を折り畳む折り手段と、請求項1〜5のいずれか1項に記載の用紙断裁装置を有することを特徴とする用紙後処理装置。 A sheet post-processing apparatus comprising: a folding unit that folds a sheet; and the sheet cutting apparatus according to claim 1. 用紙に画像を形成する画像形成装置と、請求項1〜5のいずれか1項に記載の用紙断裁装置を有することを特徴とする画像形成システム。 An image forming system comprising: an image forming apparatus that forms an image on a sheet; and the sheet cutting apparatus according to claim 1.
JP2005002420A 2004-07-16 2005-01-07 Paper cutting device, paper post-processing device, and image forming system Active JP4150859B2 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009113150A (en) * 2007-11-06 2009-05-28 Nisca Corp Sheet bundle cutter and bookbinding machine
JP2010125580A (en) * 2008-11-29 2010-06-10 Konica Minolta Business Technologies Inc Paper cutting device and image forming system
JP2010194640A (en) * 2009-02-24 2010-09-09 Konica Minolta Business Technologies Inc Post-processing device
JP2016032848A (en) * 2014-07-31 2016-03-10 株式会社村田製作所 Sheet material cutting device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009113150A (en) * 2007-11-06 2009-05-28 Nisca Corp Sheet bundle cutter and bookbinding machine
JP2010125580A (en) * 2008-11-29 2010-06-10 Konica Minolta Business Technologies Inc Paper cutting device and image forming system
US8385809B2 (en) 2008-11-29 2013-02-26 Konica Minolta Business Technologies, Inc. Sheet cutting device and image forming system provided therewith
JP2010194640A (en) * 2009-02-24 2010-09-09 Konica Minolta Business Technologies Inc Post-processing device
JP2016032848A (en) * 2014-07-31 2016-03-10 株式会社村田製作所 Sheet material cutting device

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