JP2012006747A - Sheet folding device - Google Patents

Sheet folding device Download PDF

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JP2012006747A
JP2012006747A JP2010146261A JP2010146261A JP2012006747A JP 2012006747 A JP2012006747 A JP 2012006747A JP 2010146261 A JP2010146261 A JP 2010146261A JP 2010146261 A JP2010146261 A JP 2010146261A JP 2012006747 A JP2012006747 A JP 2012006747A
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folding
sheet
roller
folding roller
conveyance path
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JP5565138B2 (en
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Yasuki Matsuura
康樹 松浦
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Ricoh Co Ltd
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Ricoh Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a sheet folding device capable of simultaneously performing a folding processing even while performing a non-folding processing, contributing to the improvement of post-treatment productivity, and achieving energy savings and space savings.SOLUTION: The sheet folding device that sandwiches a sheet discharged from an image forming apparatus between a folding roller pair and performs the folding processing includes a plurality of edge stopper means 51, 52 and 53 that deflect the sheet to cause the rollers to sandwich the deflected part, and determine a folding position in the conveying direction, and a conveying roller that forms the deflection by causing the sheet to abut against the stopper means. The folding roller pairs are close to each other and composed of a first sandwiching part formed of a first folding roller 21 and a second folding roller 22, a second sandwiching part formed of the second folding roller 22 and a third folding roller 23, and a third sandwiching part formed of a fourth folding roller 24 and a fifth folding roller 25. The sheet folding device is capable of simultaneously performing the post-treatment for the folding processing and the non-folding processing.

Description

本発明は、複写機及び印刷機等の画像形成装置から排出されたシートを折り加工するシート折り装置に係り、詳しくは、２つ折り、内３つ折り、外３つ折り、Ｚ折り、４つ折り、観音折り等の折り曲げ処理するシート折り装置に関する。   The present invention relates to a sheet folding apparatus that folds a sheet discharged from an image forming apparatus such as a copying machine and a printing machine. The present invention relates to a sheet folding apparatus that performs folding processing such as folding.

シート処理装置の多機能化にともない、複数の処理ユニットを有する装置においては、穿孔ユニットを使用しない動作モードが存在し、その動作モードを実行している場合、たとえ穿孔ユニットが使用されていなくても、その動作が終了するのを待ってからでないと、穿孔ユニットを使うことができないという問題がある。   With the increase in the number of functions of sheet processing apparatuses, in an apparatus having a plurality of processing units, there is an operation mode that does not use a punching unit, and when the operation mode is executed, the punching unit is not used. However, there is a problem that the drilling unit cannot be used until the operation is completed.

そこで、特許文献１には、複写機本体から搬送されたシートが穿孔手段のある搬送パスを通らない時に前記給紙手段から給紙したシートを前記マニュアル操作手段と前記穿孔手段によって穿孔することを特徴とするシート処理装置が開示されているが、折り装置は複写機と後処理装置の間に構成されており、折り完了後の排紙経路と、穿孔後の排紙搬送路と共有されているため、折り処理と同時に実行できないという問題がある。   Therefore, in Patent Document 1, the sheet fed from the sheet feeding unit is punched by the manual operation unit and the punching unit when the sheet transported from the copying machine main body does not pass through the transport path having the punching unit. Although the sheet processing apparatus is disclosed, the folding apparatus is configured between the copying machine and the post-processing apparatus, and is shared by the discharge path after the folding is completed and the discharge conveyance path after punching. Therefore, there is a problem that it cannot be executed simultaneously with the folding process.

また、特許文献２には、オフライン折り用の給紙手段を有し、オフラインによる折り処理が実行可能な装置が開示されている。紙折り装置は、「オフライン折り」用の、第２の用紙搬入口としての手差し台を構成する手差し部を有し、用紙について複写機装置本体を通さず（オフライン）挿入出来る構成となっている。しかし、折り処理モードと非折り処理モードを同時に実行することが出来ないという問題がある。   Further, Patent Document 2 discloses an apparatus that has a sheet feeding unit for offline folding and can execute an offline folding process. The paper folding device has a manual feed section that constitutes a manual feed base as a second paper carry-in port for “offline folding”, and is configured to allow the paper to be inserted without going through the copying machine main body (offline). . However, there is a problem that the folding processing mode and the non-folding processing mode cannot be executed simultaneously.

また、特許文献３には、２つ折り、Ｚ折り、外３つ折り、内３つ折り、単純４つ折り、観音４つ折りの各折り動作が可能な折り機が開示されている。   Further, Patent Document 3 discloses a folding machine that can perform two folding operations, Z folding, outer three folding, inner three folding, simple four folding, and four-tone folding.

Ｚ折り（下流側排紙）について、図４を用いて説明する。第１切替爪４３１によって、第１搬送路４０１に用紙を案内し、第１折りローラ４２１と第２折りローラ４２２のニップを通過し、用紙先端が第３搬送路４０３に配置されている折り位置に移動可能な第２ストッパ４５２に突き当たり、用紙の撓み部分を第２折りローラ４２２と第３折りローラ４２３のニップに進入させて１回目の折りを行った後、第２切替爪によって、第４搬送路４０４に搬送される。   Z-folding (downstream discharge) will be described with reference to FIG. The first switching claw 431 guides the sheet to the first conveyance path 401, passes through the nip between the first folding roller 421 and the second folding roller 422, and the folding position where the leading edge of the sheet is disposed in the third conveyance path 403 The second stopper 452 that can move to the second folding roller 423, the bent portion of the paper enters the nip between the second folding roller 422 and the third folding roller 423, and then the first folding is performed. It is conveyed to the conveyance path 404.

用紙先端が第４搬送路４０４に配置されている折り位置に移動可能な第３ストッパ４５３に突き当たり、用紙の撓み部分を第４折りローラ４２４と第５折りローラ４２５のニップに進入させて２回目の折りを行い、Ｚ折り完了となる。Ｚ折りが完了した用紙は、第６搬送路４０６、第７搬送路４０７を経由して、第３切替爪４３３が第９搬送路４０９へ切り替えられており、後処理装置側へ用紙を排紙する。   The leading edge of the sheet hits the third stopper 453 that can be moved to the folding position disposed in the fourth conveyance path 404, and the bent portion of the sheet enters the nip between the fourth folding roller 424 and the fifth folding roller 425 for the second time. Is folded and Z-folding is completed. When the Z-folding is completed, the third switching claw 433 is switched to the ninth conveyance path 409 via the sixth conveyance path 406 and the seventh conveyance path 407, and the sheet is discharged to the post-processing apparatus side. To do.

ここで、第４折りローラ４２４と第５折りローラ４２５のニップに進入させるべく、第４折りローラ従動ローラ４６８が構成されているが、中央部２箇所の緒ニップで構成されている。第４折りローラ４２４と第５折りローラ４２５摩擦係数は通紙枚数による耐久的劣化や、紙粉等によって低下する場合がある。   Here, the fourth folding roller driven roller 468 is configured to enter the nip between the fourth folding roller 424 and the fifth folding roller 425, but it is configured by a nip at two central portions. The friction coefficient of the fourth folding roller 424 and the fifth folding roller 425 may decrease due to durability deterioration due to the number of sheets passed, paper dust, or the like.

このとき、用紙先端を突き当てることで撓みを作り、その撓みが折りローラのニップに引き込まれにくくなるため、スリップが生じる。しかし、用紙は停止することなく搬送される。例えばＺ折りの２回目折り時は、第４折りローラ４２４部分で用紙が第４折りローラ４２４に巻きつかず隙間が空いてしまう。また、第４折りローラ従動ローラ４６８の第４折りローラ４２４とニップしている部分以外は、第４折りローラ４２４と開閉ガイド板には搬送隙間が設けられている。   At this time, a bend is created by abutting the leading edge of the sheet, and the bend is less likely to be drawn into the nip of the folding roller, causing a slip. However, the sheet is conveyed without stopping. For example, at the time of the second folding of Z-folding, the sheet does not wind around the fourth folding roller 424 at the fourth folding roller 424 and a gap is left. Further, except for the portion of the fourth folding roller driven roller 468 that is nipped with the fourth folding roller 424, a conveyance gap is provided between the fourth folding roller 424 and the open / close guide plate.

このニップ部と搬送隙間によって用紙は浮いたり撓みが生じたりしながら搬送される。
前記第４折りローラ４２４部分で用紙が第４折りローラ４２４に巻きつかず隙間が生じた状態で、用紙の浮きや撓み部分にはコシが付いてしまい、そのコシが付いた箇所が屈曲することでしごかれてしまい、用紙にダメージを付けるという問題がある。 The sheet is conveyed while being floated or bent by the nip portion and the conveyance gap.
In the state where the paper does not wind around the fourth folding roller 424 at the fourth folding roller 424 and a gap is generated, the floating or bent portion of the paper is stiff, and the stiff portion is bent. There is a problem of damaging the paper.

本発明の目的は、上記の問題を解決し、非折り処理を実行している間でも、折り処理が同時に可能であり、後処理生産性向上に貢献でき、かつ省電力、省エネ、省スペースを実現できるシート折り装置を提案することにある。   The object of the present invention is to solve the above-mentioned problems, and even during the non-folding process, the folding process can be performed simultaneously, contributing to the improvement of post-processing productivity, and saving power, energy and space. The object is to propose a sheet folding apparatus that can be realized.

本発明のシート折り装置は、画像形成装置から排出されるシートを折りローラ対に挟持して折り加工するシート折り装置であって、シートを撓ませることにより撓み部をローラに挟持させ搬送方向の折り位置を決定する複数の先端ストッパ手段と、ストッパ手段に突き当てることで撓みを形成させる搬送ローラとが構成されており、折りローラ対は、互いに密接し、第１折りローラ及び第２折りローラで形成される第１挟持部と、第２折りローラ及び第３折りローラで形成される第２挟持部と、第４折りローラ及び第５折りローラで形成される第３挟持部とで構成され、折り処理と非折り処理の後処理を同時に実行可能なことを特徴とする。   A sheet folding apparatus according to the present invention is a sheet folding apparatus that sandwiches a sheet discharged from an image forming apparatus between a pair of folding rollers and folds the sheet. A plurality of front end stopper means for determining a folding position and a conveyance roller for forming a deflection by abutting against the stopper means are configured, and the pair of folding rollers are in close contact with each other, and the first folding roller and the second folding roller The first clamping part formed by the second folding part formed by the second folding roller and the third folding roller, and the third clamping part formed by the fourth folding roller and the fifth folding roller. The post-processing of the folding process and the non-folding process can be executed simultaneously.

本発明によれば、非折り処理を実行している間でも、折り処理が同時に可能であり、後処理生産性向上に貢献でき、かつ省電力、省エネ、省スペースを実現できるという効果を奏する。   According to the present invention, the folding process can be performed at the same time even while the non-folding process is being performed, and it is possible to contribute to the improvement of post-processing productivity and to realize power saving, energy saving, and space saving.

本発明の実施形態に係るシート折り装置の全体レイアウト図（その１）である。1 is an overall layout diagram (part 1) of a sheet folding apparatus according to an embodiment of the present invention; 本発明の実施形態に係るシート折り装置の全体レイアウト図（その２）である。FIG. 5 is an entire layout diagram (No. 2) of the sheet folding apparatus according to the embodiment of the present invention. 本発明の実施形態に係るシート折り装置の全体レイアウト図（その３）である。FIG. 6 is an overall layout diagram (part 3) of the sheet folding apparatus according to the embodiment of the present invention; 従来のシート折り装置の全体レイアウト図である。It is a whole layout figure of the conventional sheet folding device.

本発明の実施形態について説明する。図１は、本発明を反映したシート折り装置の全体レイアウト図（その１）である。この構成により、２つ折り、Ｚ折り、外３つ折り、内３つ折り、単純４つ折り、観音４つ折りの各折り動作が可能となる。図１に基づいて、複写機本体からシートを受け入れて折り処理を実行するオンライン折り動作について、各折り動作別に説明する。   An embodiment of the present invention will be described. FIG. 1 is an overall layout diagram (part 1) of a sheet folding apparatus reflecting the present invention. With this configuration, it is possible to perform each folding operation of two folds, Z folds, outer three folds, inner three folds, simple four folds, and kannon four folds. An online folding operation for receiving a sheet from the copying machine main body and executing a folding process will be described for each folding operation with reference to FIG.

まず、Ｚ折り（下流側排紙）について説明する。第１切替爪３１によって、第１搬送路１に用紙を案内し、第１折りローラ２１と第２折りローラ２２のニップを通過し、用紙先端が第３搬送路３に配置されている折り位置に移動可能な第２ストッパ５２に突き当たり、用紙の撓み部分を第２折りローラ２２と第３折りローラ２３のニップに進入させて１回目の折りを行った後、第２切替爪によって、第４搬送路４に搬送される。   First, Z-folding (downstream discharge) will be described. The first switching claw 31 guides the sheet to the first conveyance path 1, passes through the nip between the first folding roller 21 and the second folding roller 22, and the folding position where the leading edge of the sheet is disposed in the third conveyance path 3. The second stopper 52 is movable to the second stopper 52, and the bent portion of the paper enters the nip between the second folding roller 22 and the third folding roller 23 to perform the first folding. It is transported to the transport path 4.

用紙先端が第４搬送路４に配置されている折り位置に移動可能な第３ストッパ５３に突き当たり、用紙の撓み部分を第４折りローラ２４と第５折りローラ２５のニップに進入させて２回目の折りを行い、Ｚ折り完了となる。Ｚ折りが完了した用紙は、第６搬送路６、第７搬送路７を経由して、第３切替爪３３が第９搬送路９へ切り替えられており、後処理装置側へ用紙を排紙する。   The leading edge of the sheet hits the third stopper 53 that can be moved to the folding position arranged in the fourth conveyance path 4, and the bent portion of the sheet enters the nip between the fourth folding roller 24 and the fifth folding roller 25 for the second time. Is folded and Z-folding is completed. When the Z-folding is completed, the third switching claw 33 is switched to the ninth conveyance path 9 via the sixth conveyance path 6 and the seventh conveyance path 7, and the sheet is discharged to the post-processing apparatus side. To do.

次に、Ｚ折り（用紙収容部排紙）について説明する。第１切替爪３１によって、第１搬送路１に用紙を案内し、第１折りローラ２１と第２折りローラ２２のニップを通過し、用紙先端が第３搬送路３に配置されている折り位置に移動可能な第２ストッパ５２に突き当たり、用紙の撓み部分を第２折りローラ２２と第３折りローラ２３のニップに進入させて１回目の折りを行った後、第２切替爪によって、第４搬送路４に搬送される。   Next, Z-folding (paper storage unit discharge) will be described. The first switching claw 31 guides the sheet to the first conveyance path 1, passes through the nip between the first folding roller 21 and the second folding roller 22, and the folding position where the leading edge of the sheet is disposed in the third conveyance path 3. The second stopper 52 is movable to the second stopper 52, and the bent portion of the paper enters the nip between the second folding roller 22 and the third folding roller 23 to perform the first folding. It is transported to the transport path 4.

用紙先端が第４搬送路４に配置されている折り位置に移動可能な第３ストッパ５３に突き当たり、用紙の撓み部分を第４折りローラ２４と第５折りローラ２５のニップに進入させて２回目の折りを行い、Ｚ折り完了となる。Ｚ折りが完了した用紙は、第６搬送路６、第７搬送路７を経由して、第３切替爪３３が第８搬送路８へ切り替えられており、水平搬送路１３を経由し、第５切替爪３５により第１１搬送路１１に案内され、用紙収容部排紙経路１２を経由し、折紙排紙部（上）４１に排紙する。   The leading edge of the sheet hits the third stopper 53 that can be moved to the folding position arranged in the fourth conveyance path 4, and the bent portion of the sheet enters the nip between the fourth folding roller 24 and the fifth folding roller 25 for the second time. Is folded and Z-folding is completed. When the Z-folding is completed, the third switching claw 33 is switched to the eighth conveyance path 8 via the sixth conveyance path 6 and the seventh conveyance path 7, and the third conveyance claw 33 is switched to the eighth conveyance path 8 via the horizontal conveyance path 13. 5 is guided to the eleventh transport path 11 by the switching claw 35, and is discharged to the origami discharge section (upper) 41 through the sheet storage section discharge path 12.

次に、２つ折りについて説明する。第１切替爪３１によって、第１搬送路１を経由し、第２搬送路２へ用紙を案内し、用紙先端が第２搬送路２に配置されている折り位置に移動可能な第１ストッパ５１に突き当たり、用紙の撓み部分を第１折りローラ２１と第２折りローラ２２のニップに進入させて１回目の折りを行い、二つ折り完了となる。   Next, folding in half will be described. The first switching claw 31 guides the sheet to the second conveyance path 2 via the first conveyance path 1, and the first stopper 51 is movable to the folding position where the leading edge of the sheet is disposed in the second conveyance path 2. Then, the bent portion of the paper enters the nip between the first folding roller 21 and the second folding roller 22 to perform the first folding, and the folding is completed.

折り完了後、第３搬送路３へは進入せずに、第２折りローラ２２と第３折りローラ２３のニップを通過し、第２切替爪３２によって第５搬送路５へ案内され、第７搬送路７を経由して、第３切替爪３３が第８搬送路８へ切り替えられており、水平搬送路１３を経由し、第５切替爪３５により第１１搬送路１１に案内され、用紙収容部排紙経路１２を経由し、折紙排紙部（上）４１に排紙する。   After the folding is completed, the sheet does not enter the third conveyance path 3 but passes through the nip between the second folding roller 22 and the third folding roller 23 and is guided to the fifth conveyance path 5 by the second switching claw 32. The third switching claw 33 is switched to the eighth conveyance path 8 via the conveyance path 7, and is guided to the eleventh conveyance path 11 by the fifth switching claw 35 via the horizontal conveyance path 13. The paper is discharged to the origami paper discharge unit (upper) 41 via the paper discharge path 12.

次に、外３つ、内３つ、単純４つ折りについて説明する。第１切替爪３１によって、第１搬送路１を経由し、第２搬送路２へ用紙を案内し、用紙先端が第２搬送路２に配置されている折り位置に移動可能な第１ストッパ５１に突き当たり、用紙の撓み部分を第１折りローラ２１と第２折りローラ２２のニップに進入させて１回目の折りを行いった後、第３搬送路３に搬送される。   Next, outer three, inner three, and simple four-fold will be described. The first switching claw 31 guides the sheet to the second conveyance path 2 via the first conveyance path 1, and the first stopper 51 is movable to the folding position where the leading edge of the sheet is disposed in the second conveyance path 2. Then, the bent portion of the paper enters the nip between the first folding roller 21 and the second folding roller 22 to perform the first folding, and is then conveyed to the third conveyance path 3.

用紙先端が第３搬送路３に配置されている折り位置に移動可能な第２ストッパ５２に突き当たり、用紙の撓み部分を第２折りローラ２２と第３折りローラ２３のニップに進入させて２回目の折りを行い、折り完了となる。   The leading edge of the sheet hits the second stopper 52 that can be moved to the folding position arranged in the third conveyance path 3, and the bent portion of the sheet enters the nip between the second folding roller 22 and the third folding roller 23 for the second time. Is folded, and the folding is completed.

このとき、外３つ、内３つ、単純４つの各折りモードと、用紙サイズにより、第１ストッパ５１、第２ストッパ５２は制御された位置に停止されている。折り完了後、第２切替爪３２によって第５搬送路５へ案内され、第７搬送路７を経由して、第３切替爪３３が第８搬送路８へ切り替えられており、水平搬送路１３を経由し、第５切替爪３５により第11搬送路１１に案内され、用紙収容部排紙経路１２を経由し、折紙排紙部（上）４１に排紙する。   At this time, the first stopper 51 and the second stopper 52 are stopped at controlled positions according to the outer three, inner three, and simple four folding modes and the sheet size. After the folding is completed, the second switching claw 32 guides the fifth conveyance path 5 and the seventh conveyance path 7 switches the third switching claw 33 to the eighth conveyance path 8. , And is guided to the eleventh transport path 11 by the fifth switching claw 35 and discharged to the origami discharge section (upper) 41 via the sheet storage section discharge path 12.

次に、観音４つ折りについて説明する。第１切替爪３１によって、第１搬送路１を経由し、第２搬送路２へ用紙を案内し、用紙先端が第２搬送路２に配置されている折り位置に移動可能な第１ストッパ５１に突き当たり、用紙の撓み部分を第１折りローラ２１と第２折りローラ２２のニップに進入させて１回目の折りを行いった後、第３搬送路３に搬送される。   Next, the Guan Yin fold will be described. The first switching claw 31 guides the sheet to the second conveyance path 2 via the first conveyance path 1, and the first stopper 51 is movable to the folding position where the leading edge of the sheet is disposed in the second conveyance path 2. Then, the bent portion of the paper enters the nip between the first folding roller 21 and the second folding roller 22 to perform the first folding, and is then conveyed to the third conveyance path 3.

用紙先端が第３搬送路３に配置されている折り位置に移動可能な第２ストッパ５２に突き当たり、用紙の撓み部分を第２折りローラ２２と第３折りローラ２３のニップに進入させて２回目の折りを行った後、第２切替爪３２によって、第４搬送路４に案内される。   The leading edge of the sheet hits the second stopper 52 that can be moved to the folding position arranged in the third conveyance path 3, and the bent portion of the sheet enters the nip between the second folding roller 22 and the third folding roller 23 for the second time. After the folding, the second switching claw 32 guides the fourth conveying path 4.

用紙先端が第４搬送路４に配置されている折り位置に移動可能な第３ストッパ５３に突き当たり、用紙の撓み部分を第４折りローラ２４と第５折りローラ２５のニップに進入させて３回目の折りを行う。観音４つ折り完了となる。   The leading edge of the sheet hits the third stopper 53 that can move to the folding position arranged in the fourth conveyance path 4, and the bent portion of the sheet enters the nip between the fourth folding roller 24 and the fifth folding roller 25 for the third time. Fold it. The kannon is folded in four.

３回目の折り時、観音４つ折り先端めくれ防止機構６４が動作して撓み部分を押さえることで、１回目の折り、２回目の折りで折り込まれた用紙先端部・後端部を押さえることで用紙端部がめくれる事無く３回目の折りが行われる。折り完了後、第７搬送路７を経由して、第３切替爪３３が第８搬送路８へ切り替えられており、水平搬送路１３を経由し、第５切替爪３５により第１１搬送路１１に案内され、用紙収容部排紙経路１２を経由し、折紙排紙部（上）４１に排紙する。   At the time of the third fold, the Kannon quadruple front end turning prevention mechanism 64 operates to press the bent portion, thereby pressing the front and rear ends of the paper folded in the first fold and the second fold. The third fold is done without the edges turning up. After the folding is completed, the third switching claw 33 is switched to the eighth conveyance path 8 via the seventh conveyance path 7, and the eleventh conveyance path 11 is switched by the fifth switching claw 35 via the horizontal conveyance path 13. To the origami paper discharge unit (upper) 41 via the paper storage unit paper discharge path 12.

次に、複数枚重ね折りについて説明する。なお、３枚重ね折り時を例に説明する。１枚目が第１切替爪３１によって、第１搬送路１を経由し、第２搬送路２へ用紙を案内される。
用紙先端が第２搬送路２に配置されている折り位置に移動可能な第１ストッパ５１に突き当たり、停止する。重ね折り用紙縦揃え機構（叩きコロ）６６により、確実に第１ストッパ５１に行き当てる。重ね折り用紙横揃え機構（ジョガー）６７により、幅方向の用紙揃えを行う。重ね折り順狂い防止機構６１が用紙後端側を押さえる。 Next, a description will be given of the multiple folding. A case where three sheets are overlapped will be described as an example. The first sheet is guided by the first switching claw 31 through the first conveyance path 1 to the second conveyance path 2.
The leading edge of the sheet hits the first stopper 51 that can move to the folding position arranged in the second conveyance path 2 and stops. The overlapped sheet vertical alignment mechanism (striking roller) 66 ensures contact with the first stopper 51. A sheet alignment in the width direction is performed by an overlapping folded sheet horizontal alignment mechanism (jogger) 67. The stacking / folding order error prevention mechanism 61 presses the rear end side of the sheet.

２枚目が第１切替爪３１によって、第１搬送路１を経由し、第２搬送路２へ用紙を案内される。重ね折り順狂い防止機構６１が１枚目の用紙後端側を押さえているため、１枚目に重なるように搬送される。２枚目用紙先端が第２搬送路２に配置されている折り位置に移動可能な第１ストッパ５１に突き当たり、停止する。重ね折り用紙縦揃え機構（叩きコロ）６６により、確実に第１ストッパ５１に行き当て、縦揃えを行う。重ね折り用紙横揃え機構（ジョガー）６７により、幅方向の用紙揃えを行う。重ね折り順狂い防止機構６１が１枚目、２枚目用紙後端側を押さえる。   The second sheet is guided by the first switching claw 31 to the second transport path 2 via the first transport path 1. Since the stacking / folding order error prevention mechanism 61 presses the rear end side of the first sheet, it is conveyed so as to overlap the first sheet. The leading edge of the second sheet hits the first stopper 51 that can move to the folding position arranged in the second conveyance path 2 and stops. The stacked folded paper vertical alignment mechanism (striking roller) 66 securely contacts the first stopper 51 and performs vertical alignment. A sheet alignment in the width direction is performed by an overlapping folded sheet horizontal alignment mechanism (jogger) 67. The stacking / folding order error prevention mechanism 61 presses the rear end side of the first sheet and the second sheet.

３枚目が第１切替爪３１によって、第１搬送路１を経由し、第２搬送路２へ用紙を案内される。重ね折り順狂い防止機構６１が１枚目、２枚目の用紙後端側を押さえているため、２枚目に重なるように搬送される。このとき、搬送されてきた順番（１枚目・２枚目・３枚目）が狂うことなく、搬送されている。３枚目用紙先端が第２搬送路２に配置されている折り位置に移動可能な第１ストッパ５１に突き当たり、停止する。重ね折り用紙縦揃え機構（叩きコロ）６６により、確実に第１ストッパ５１に行き当て、縦揃えを行う。重ね折り用紙横揃え機構（ジョガー）６７により、幅方向の用紙揃えを行う。重ね折り順狂い防止機構６１が１枚目、２枚目、３枚目用紙後端側を押さえる。   The third sheet is guided by the first switching claw 31 to the second transport path 2 via the first transport path 1. Since the stacking / folding order error preventing mechanism 61 presses the rear end side of the first sheet and the second sheet, it is conveyed so as to overlap the second sheet. At this time, the order of transport (first sheet, second sheet, third sheet) is transported without being out of order. The leading edge of the third sheet hits the first stopper 51 that can move to the folding position arranged in the second transport path 2 and stops. The stacked folded paper vertical alignment mechanism (striking roller) 66 securely contacts the first stopper 51 and performs vertical alignment. A sheet alignment in the width direction is performed by an overlapping folded sheet horizontal alignment mechanism (jogger) 67. The stacking / folding order error prevention mechanism 61 presses the rear end side of the first sheet, the second sheet, and the third sheet.

折りブレード６２により、第１折りローラ２１と第２折りローラ２２のニップに３枚同時に押し込み、１回目の折りを行う。このとき、折りブレード６２の先端は第１折りローラ２１と第２折りローラ２２のニップの位置を越えるまで押し込まれる。これにより、折りローラに接触している最外紙（例えば３枚目用紙）のみが折られる現象が無くなる。２回目以降の折り、排紙動作は前記折り動作、排紙動作の説明に同じである。   The folding blade 62 pushes three sheets simultaneously into the nip between the first folding roller 21 and the second folding roller 22 to perform the first folding. At this time, the leading end of the folding blade 62 is pushed in until the nip position between the first folding roller 21 and the second folding roller 22 is exceeded. This eliminates the phenomenon that only the outermost sheet (for example, the third sheet) in contact with the folding roller is folded. The second and subsequent folding and discharging operations are the same as the description of the folding and discharging operations.

また、図２及び図３を用いて、本発明の実施形態について説明する。複写機本体１０１よりシートを受け入れて、ステイプル処理をする後処理モードが実行されている場合である。   In addition, an embodiment of the present invention will be described with reference to FIGS. This is a case where a post-processing mode in which a sheet is received from the copying machine main body 101 and a stapling process is performed is executed.

シート折装置の搬送ローラは、「搬送駆動Ａ」によってシートを後処理装置１０２へ搬送する。後処理装置１０２はシートを受け入れて、穿孔装置９１で穿孔されたり、ステイプラ装置９２にてステイプル処理された後、ステイプル処理放出経路９３から束が放出される。このとき、シート折装置で折処理を、ステイプル後処理モードと同時に実行することができる。   The conveyance roller of the sheet folding apparatus conveys the sheet to the post-processing apparatus 102 by “conveyance drive A”. The post-processing device 102 receives the sheet, punches it with the punching device 91, or staples it with the stapler device 92, and then releases the bundle from the staple processing discharge path 93. At this time, the folding process can be executed simultaneously with the post-staple processing mode by the sheet folding apparatus.

オフライン給紙部８３にシートをセットする。オフライン実行ＳＷ８４により、用紙サイズ、折りモードを選択し、折り実行キーを押す。シートはオフライン給紙搬送経路８１を経由して第１搬送路１に搬送される。選択された折りモードの折り動作は、前記説明に同じである。折りが完了されたシートは、第６切替爪３６によってオフライン折紙排紙搬送路８２に送られ、折紙排紙部（下）４２に排紙される。   A sheet is set in the offline sheet feeding unit 83. The sheet size and folding mode are selected by the offline execution SW 84, and the folding execution key is pressed. The sheet is conveyed to the first conveyance path 1 via the offline sheet feeding conveyance path 81. The folding operation in the selected folding mode is the same as described above. The sheet that has been folded is sent to the offline origami discharge conveyance path 82 by the sixth switching claw 36 and discharged to the origami discharge unit (lower) 42.

シート折装置は、「搬送駆動Ａ」「搬送駆動Ｂ」「搬送駆動Ｃ」「搬送駆動Ｄ」「搬送駆動Ｅ」の独立した搬送駆動で構成されている。オンライン折りの場合、「搬送駆動Ａ」「搬送駆動Ｂ」「搬送駆動Ｃ」が駆動しており、折り処理を行う。オフライン折りの場合、「搬送駆動Ｄ」「搬送駆動Ｂ」「搬送駆動Ｅ」が駆動しており、折り処理を行う。   The sheet folding apparatus is configured by independent conveyance drives of “conveyance drive A”, “conveyance drive B”, “conveyance drive C”, “conveyance drive D”, and “conveyance drive E”. In the case of online folding, “conveyance drive A”, “conveyance drive B”, and “conveyance drive C” are driven to perform folding processing. In the case of offline folding, “conveyance drive D”, “conveyance drive B”, and “conveyance drive E” are driven, and folding processing is performed.

「搬送駆動Ａ」は、複写機本体１０１のプロセス線速で駆動し、「搬送駆動Ｄ」「搬送駆動Ｂ」「搬送駆動Ｅ」は、複写機本体１０１のプロセス線速よりも速い線速で駆動している。例えば、複写機本体１０１のプロセス線速が４０ＣＰＭの低速機の場合、オフライン折駆動の「搬送駆動Ｄ」「搬送駆動Ｂ」「搬送駆動Ｅ」は独立した駆動のため、複写機本体１０１のプロセス線速よりも速い線速で駆動させることが出来る。   The “conveyance drive A” is driven at the process linear speed of the copying machine main body 101, and the “conveyance drive D”, “conveyance drive B”, and “conveyance drive E” are linear speeds higher than the process linear speed of the copying machine main body 101. Driving. For example, when the process linear speed of the copying machine main body 101 is a low speed machine of 40 CPM, the “folding driving D”, “transporting driving B”, and “transporting driving E” of the offline folding drive are independent drives. It can be driven at a higher linear speed than the linear speed.

シート折装置は、ＡＣラインコード８５、電源８６を備えており、本体の電源が停止している場合においても、シート折装置単独で動作させることが出来る。シート折り装置の電源を投入し、オフライン給紙部８３にシートをセットする。オフライン実行ＳＷ８４により、用紙サイズ、折りモードを選択し、折り実行キーを押す。以降の折り動作、シート搬送動作は前記の通りである。   The sheet folding apparatus includes an AC line cord 85 and a power source 86, and the sheet folding apparatus can be operated alone even when the power of the main body is stopped. The power of the sheet folding apparatus is turned on, and the sheet is set in the offline sheet feeding unit 83. The sheet size and folding mode are selected by the offline execution SW 84, and the folding execution key is pressed. The subsequent folding operation and sheet conveying operation are as described above.

本発明の効果として、シート折り装置のシステムとして、非折り処理（例えばステイプル）を実行している間でも、折り処理が同時に可能であり、後処理生産性向上に貢献できる。また、複写機本体のプロセス線速以上の折り処理スピードであり、後処理生産性向上に貢献できる。また、シート折り装置のみ駆動させるため、消費電力の低減に貢献できる。また、卓上のシート折り専用装置があれば折り処理のみ実行できるが、設置スペースが無駄であり、本発明は省エネ・省スペースに貢献できる。   As an effect of the present invention, as the system of the sheet folding apparatus, the folding process can be performed at the same time even while the non-folding process (for example, stapling) is being performed, which can contribute to the improvement of post-processing productivity. In addition, the folding processing speed is higher than the process linear speed of the copying machine main body, which can contribute to improvement in post-processing productivity. Moreover, since only the sheet folding apparatus is driven, it is possible to contribute to reduction of power consumption. Further, if there is a desk-top sheet folding apparatus, only folding processing can be executed, but installation space is wasted, and the present invention can contribute to energy saving and space saving.

１ 第１搬送路
２ 第２搬送路
３ 第３搬送路
４ 第４搬送路
５ 第５搬送路
６ 第６搬送路
７ 第７搬送路
８ 第８搬送路
９ 第９搬送路
１１ 第１１搬送路
１２ 用紙収容部排紙経路
１３ 水平搬送路
２１ 第１折りローラ
２２ 第２折りローラ
２３ 第３折りローラ
２４ 第４折りローラ
２５ 第５折りローラ
３１ 第１切替爪
３２ 第２切替爪
３３ 第３切替爪
４１ 折紙排紙部（上）
４２ 折紙排紙部（下）
５１ 第１ストッパ
５２ 第２ストッパ
５３ 第３ストッパ
６１ 重ね折り順狂い防止機構
６２ 折りブレード
６４ 観音４つ折り先端めくれ防止機構
６６ 重ね折り用紙縦揃え機構（叩きコロ）
６７ 重ね折り用紙横揃え機構（ジョガー）
８１ オフライン給紙搬送経路
８３ オフライン給紙部
８４ オフライン実行ＳＷ
８５ ＡＣラインコード
８６ 電源
９１ 穿孔装置
９２ ステイプラ装置
９３ ステイプル処理放出経路
１０１ 複写機本体
１０２ 後処理装置 DESCRIPTION OF SYMBOLS 1 1st conveyance path 2 2nd conveyance path 3 3rd conveyance path 4 4th conveyance path 5 5th conveyance path 6 6th conveyance path 7 7th conveyance path 8 8th conveyance path 9 9th conveyance path 11 11th conveyance path 12 Paper container discharge path 13 Horizontal transport path 21 First folding roller 22 Second folding roller 23 Third folding roller 24 Fourth folding roller 25 Fifth folding roller 31 First switching claw 32 Second switching claw 33 Third switching Claw 41 Origami paper discharge unit (top)
42 Origami paper output section (bottom)
51 First Stopper 52 Second Stopper 53 Third Stopper 61 Overlap Folding Order Preventing Mechanism 62 Folding Blade 64 Quan Yin Four-Folding Tip Turning Preventing Mechanism 66 Overlapping Fold Vertical Vertical Alignment Mechanism (Tapping Roll)
67 Overlapping paper horizontal alignment mechanism (jogger)
81 Offline paper feed path 83 Offline paper feed unit 84 Offline execution SW
85 AC line cord 86 Power supply 91 Punching device 92 Stapler device 93 Staple processing discharge path 101 Copier body 102 Post-processing device

特開２００３−８９４６９号公報JP 2003-89469 A 特開２００７−２３８２５６号公報JP 2007-238256 A 特開２０１０−１００３４７号公報JP 2010-100347 A

Claims (3)

画像形成装置から排出されるシートを折りローラ対に挟持して折り加工するシート折り装置において、
シートを撓ませることにより撓み部をローラに挟持させ搬送方向の折り位置を決定する複数の先端ストッパ手段と、
ストッパ手段に突き当てることで撓みを形成させる搬送ローラとが構成されており、
前記折りローラ対は、互いに密接し、
第１折りローラ及び第２折りローラで形成される第１挟持部と、
第２折りローラ及び第３折りローラで形成される第２挟持部と、
第４折りローラ及び第５折りローラで形成される第３挟持部と
で構成され、
折り処理と非折り処理の後処理を同時に実行可能なことを特徴とするシート折り装置。 In a sheet folding apparatus for sandwiching a sheet discharged from an image forming apparatus between a pair of folding rollers and folding the sheet,
A plurality of front end stopper means for holding the bent portion between the rollers by bending the sheet and determining the folding position in the conveying direction;
Conveying roller that forms the deflection by abutting against the stopper means is configured,
The folding roller pair is in close contact with each other;
A first clamping unit formed by a first folding roller and a second folding roller;
A second clamping unit formed by the second folding roller and the third folding roller;
It is comprised with the 3rd clamping part formed with the 4th folding roller and the 5th folding roller,
A sheet folding apparatus capable of simultaneously performing folding processing and post-processing of non-folding processing. 複写機本体のプロセス線速よりも速い線速で、前記折り処理を実行可能な請求項１記載のシート折り装置。   The sheet folding apparatus according to claim 1, wherein the folding process can be executed at a linear speed higher than a process linear speed of the copying machine main body. 複写機本体を使用しない場合においても、前記折り処理を単独で実行可能な請求項１または２に記載のシート折り装置。   The sheet folding apparatus according to claim 1 or 2, wherein the folding process can be executed independently even when the copying machine main body is not used.
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