JP2012121704A - Paper folding device - Google Patents

Paper folding device Download PDF

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JP2012121704A
JP2012121704A JP2010274760A JP2010274760A JP2012121704A JP 2012121704 A JP2012121704 A JP 2012121704A JP 2010274760 A JP2010274760 A JP 2010274760A JP 2010274760 A JP2010274760 A JP 2010274760A JP 2012121704 A JP2012121704 A JP 2012121704A
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paper
folding
roller
sheet
discharge
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Takeshi Ichikawa
毅 市川
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Nagano Japan Radio Co
長野日本無線株式会社
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Abstract

PROBLEM TO BE SOLVED: To convey and discharge each of paper sheets smoothly and in the best condition even when the paper sheets are folded into various forms with different lengths in the conveying direction after folding, to simplify the whole conveying path, and to reduce the cost by reducing the number of parts.SOLUTION: The paper folding device is provided with a paper folding mechanism 3 folding the paper sheets P conveyed from a paper sending-in port 2i, and a discharging/conveying path 4 conveying the folded paper sheets P, which are sent out from the paper folding mechanism 3, to a paper sending-out port 2e. The device is further provided with: an outside paper-discharging mechanism 5s discharging the folded paper sheets P, which belong to a group in which the length in the conveying direction after folding is longer, to the discharging/conveying path 4; and an inside paper-discharging mechanism 5i discharging the folded paper sheets P, which belong to a group in which the length in the conveying direction after folding is shorter, to a plurality of paper stackers 8as, 8bs arranged at the positions corresponding to a plurality of paper sending-out positions Xa, Xb of a fold processing part 7.

Description

本発明は、搬入される用紙を一対のローラを用いた複数の折り処理部により折り畳む機能を備える用紙折畳み装置に関する。   The present invention relates to a sheet folding apparatus having a function of folding a sheet to be carried in by a plurality of folding processing units using a pair of rollers.

従来、印刷装置等により印刷された用紙を、二つ折り,三つ折り,観音折り等の各種折り形式に折畳むことができるようにした用紙折畳み装置としては、特許文献1で開示される用紙後処理装置が知られている。   2. Description of the Related Art Conventionally, as a sheet folding device that can fold a sheet printed by a printing apparatus or the like into various folding formats such as bi-fold, tri-fold, and kannon folding, a paper post-processing disclosed in Patent Document 1 The device is known.

同文献1で開示される用紙後処理装置は、搬入される用紙を1枚毎または複数枚重ねて搬送し、折りローラ対が用紙を撓ませる方向に駆動する折り処理部を設けることにより折り処理を可能とした用紙後処理装置であって、この用紙後処理装置は、用紙搬送路に折り処理動作を選択的に実施する第1の折り処理部と第2の折り処理部と第3の折り処理部との3つの折り処理部とが設けられていて、第1の折り処理部において折られた用紙は、第1の搬送パスを経由して、第2の折り処理部又は第3の折り処理部に向かうことを可能とし、第2の折り処理部において折られた用紙は第2の搬送パスを経由して第3の折り処理部に向かう構成とし、第1、第2、第3の折り処理部においては、折り処理を行わずに搬送される用紙は、バイパスパスを経由して排紙口へ搬送される構成とし、進入する用紙の搬送方向に対して、第1の折り処理部と第2の折り処理部において用紙を折る方向は、第3の折り処理部において用紙を折る方向と逆方向となるように構成したものである。   The paper post-processing device disclosed in the same document 1 carries a folding process by providing a folding processing unit that conveys the loaded paper one by one or plurally and drives the folding roller pair in a direction to bend the paper. The sheet post-processing apparatus, which is capable of selectively performing a folding process operation on the sheet conveyance path, includes a first folding processing unit, a second folding processing unit, and a third folding unit. The sheet folded in the first folding processing unit is provided with a second folding processing unit or a third folding unit via the first conveyance path. It is possible to go to the processing unit, and the sheet folded in the second folding processing unit is configured to go to the third folding processing unit via the second conveyance path, and the first, second and third In the folding processing unit, paper that is transported without folding processing is bypassed. The first folding processing unit and the second folding processing unit fold the paper in the third folding processing unit with respect to the conveyance direction of the entering paper. It is configured to be in the direction opposite to the direction of folding the paper.

特開2004−196477号公報JP 2004-196477 A

しかし、上述した従来の用紙後処理装置(用紙折畳み装置)は、次のような問題点があった。   However, the conventional paper post-processing device (paper folding device) described above has the following problems.

第一に、この種の装置では、通常、二つ折り形式,Z折り形式,外三つ折り形式,内三つ折り形式,四つ折り形式及び観音折り形式の主要六種の折り形式を選択できるため、折畳み前の用紙が同一であっても、折畳み後の用紙は、折り形式によってそのサイズや厚さが大きく異なる。したがって、各折り形式により折畳んだ用紙をそれぞれ円滑に搬送し、かつ排紙する点も重要な技術的課題となるが、従来の装置ではこの点における十分な考慮がなされておらず、折畳んだ各用紙を円滑かつ最適な状態で搬送及び排紙する観点からは更なる改善の余地があった。   First, in this type of device, since the main six types of fold types such as bi-fold format, Z-fold format, outer tri-fold format, inner tri-fold format, quadruple fold format and Kannon fold format can be selected, Even if the previous paper is the same, the size and thickness of the folded paper differ greatly depending on the folding format. Therefore, it is also an important technical problem to smoothly convey and discharge the folded paper in each folding format. However, the conventional apparatus does not fully consider this point, and the folding is performed. However, there is room for further improvement from the viewpoint of conveying and discharging each sheet smoothly and optimally.

第二に、折り形式によってサイズや厚さが大きく異なる用紙を搬送する必要があるため、搬送路に沿って配設する一対の搬送ローラからなるローラ機構の配設間隔は、サイズの最も短い用紙を搬送できるように選定する必要がある。このため、ローラ機構の配設数量が多くなる傾向があり、搬送路全体の煩雑化を招くとともに、部品点数の増加に伴うコストアップを招く。   Secondly, since it is necessary to transport paper whose size and thickness vary greatly depending on the folding type, the distance between the roller mechanisms composed of a pair of transport rollers disposed along the transport path is the shortest paper. Must be selected so that it can be transported. For this reason, there is a tendency that the number of roller mechanisms to be arranged tends to increase, which complicates the entire conveyance path and increases the cost associated with an increase in the number of parts.

第三に、最も複雑な折り形式となる観音折りでは用紙の三個所を折るため、通常、用紙折畳み装置も三つの折り処理部が必要となる。したがって、従来の装置では第1の折り処理部,第2の折り処理部及び第3の折り処理部の三つの折り処理部を設けているが、それぞれ独立した折り処理部として構成されるため、用紙を折るための最低限六つのローラが必要になるとともに、三つの折り処理部を搬送路上に間隔をおいて配設する必要があるなど、この観点からも部品点数の増加を招くとともに、広い配設スペースが必要となり、装置全体の更なるコストアップ及び大型化を招く。   Thirdly, in Kannon folding, which is the most complicated folding format, three portions of the sheet are folded, so that the sheet folding apparatus usually requires three folding processing units. Therefore, in the conventional apparatus, the first folding processing unit, the second folding processing unit, and the third folding processing unit are provided, but each is configured as an independent folding processing unit. At least six rollers are required to fold the paper, and it is necessary to arrange three folding processing sections at intervals on the conveyance path. An installation space is required, which further increases the cost and size of the entire apparatus.

本発明は、このような背景技術に存在する課題を解決した用紙折畳み装置の提供を目的とするものである。   An object of the present invention is to provide a sheet folding device that solves the problems existing in the background art.

本発明は、上述した課題を解決するため、搬入された用紙Pを、圧接した一対のローラを有する複数の折り処理部を用いて折り畳む機能を備える用紙折畳み装置1を構成するに際して、用紙搬入口2iから搬入される用紙Pを折り畳む用紙折畳み機構部3及びこの用紙折畳み機構部3から送出される折畳み後の用紙Pを用紙搬出口2eまで搬送する排出搬送路4を備えるとともに、折畳み後における搬送方向の長さが長いグループに属する折り形式の用紙Pを、排出搬送路4に排出する外部排紙機構部5sと、折畳み後における搬送方向の長さが短いグループに属する折り形式の用紙Pを、折り処理部7における複数の用紙送出位置Xa,Xbに対応して配設した複数の用紙スタッカ8as,8bsに排出する内部排紙機構部5iとを備えてなることを特徴とする。   In order to solve the above-described problems, the present invention provides a paper carry-in port when configuring the paper folding apparatus 1 having a function of folding a carried-in paper P using a plurality of folding processing units having a pair of pressure-contacted rollers. 2i is provided with a paper folding mechanism 3 for folding the paper P carried in from 2i, and a discharge transport path 4 for transporting the folded paper P delivered from the paper folding mechanism 3 to the paper carry-out port 2e, and transport after folding. An external paper discharge mechanism 5s that discharges the folded sheet P belonging to the group having a long direction to the discharge conveyance path 4 and a folded sheet P belonging to the group having a short length in the conveyance direction after folding. And an internal paper discharge mechanism 5i that discharges to a plurality of paper stackers 8as and 8bs arranged corresponding to a plurality of paper delivery positions Xa and Xb in the folding processing section 7. And wherein the Rukoto.

この場合、発明の好適な態様により、用紙折畳み機構部3には、圧接した一対の前ローラ6p,6qを有する前折り処理部6と、後主ローラ7mの両側に圧接させた一対の後副ローラ7p,7qを有する後折り処理部7と、搬送された用紙Pを前折り処理部6に対してローラ配列方向Fmへ搬入する前搬送路11sを有する前搬入機構部11と、一対の前ローラ6pと6q間を通過した用紙Pを後折り処理部7のローラ配列方向Fnであって後折り処理部7の搬送方向左右両側に搬入可能な第一後搬送路12aと第二後搬送路12b,及び第一後搬送路12a又は第二後搬送路12bに対して用紙Pを選択的に搬入させる後搬送路切換フラッパ12cを有する後搬入機構部12とを設けることができる。また、後折り処理部7には、後主ローラ7mと一方の後副ローラ7p間を通過した用紙Pを、後主ローラ7mと他方の後副ローラ7qのローラ配列方向Fnへ搬入可能な搬送方向切換フラッパ13x,13yを設けることができる。一方、用紙折畳み装置1には、上端が用紙Pの搬入側となり下端が用紙Pの搬出側となる半円状に湾曲させた主搬送路14を設け、この主搬送路14の上側に前折り処理部6を配設し、かつ主搬送路14の下側に後折り処理部7を配設するとともに、主搬送路14の中間位置に後搬送路切換フラッパ12cを配設し、この後搬送路切換フラッパ12cよりも搬送方向前方における主搬送路14を、第一後搬送路12aとして用いることができる。   In this case, according to a preferred aspect of the invention, the sheet folding mechanism unit 3 includes a front folding processing unit 6 having a pair of pressure-contacting front rollers 6p and 6q and a pair of rear sub-rollers pressure-contacted on both sides of the rear main roller 7m. A rear folding processing unit 7 having rollers 7p and 7q, a front carry-in mechanism unit 11 having a front conveyance path 11s for carrying the conveyed paper P to the front folding processing unit 6 in the roller arrangement direction Fm, and a pair of front The first rear conveyance path 12a and the second rear conveyance path in which the paper P that has passed between the rollers 6p and 6q can be carried in the roller arrangement direction Fn of the post-folding processing unit 7 and on both left and right sides in the conveyance direction of the post-folding processing unit 7. 12b, and a rear carry-in mechanism 12 having a rear transport path switching flapper 12c for selectively carrying the paper P into the first rear transport path 12a or the second rear transport path 12b. Further, the rear folding processing unit 7 can transport the paper P that has passed between the rear main roller 7m and one rear sub-roller 7p in the roller arrangement direction Fn of the rear main roller 7m and the other rear sub-roller 7q. Direction switching flappers 13x and 13y can be provided. On the other hand, the sheet folding device 1 is provided with a main conveyance path 14 that is curved in a semicircular shape with the upper end being the carry-in side of the paper P and the lower end being the carry-out side of the paper P. The processing unit 6 is disposed, the rear folding processing unit 7 is disposed below the main conveyance path 14, and the rear conveyance path switching flapper 12 c is disposed at an intermediate position of the main conveyance path 14. The main transport path 14 ahead of the path switching flapper 12c in the transport direction can be used as the first rear transport path 12a.

また、折畳み後における搬送方向の長さが長いグループには、二つ折り形式及びZ折り形式を属させるとともに、折畳み後における搬送方向の長さが短いグループには、外三つ折り形式,内三つ折り形式,四つ折り形式及び観音折り形式を属させることができる。一方、内部排紙機構部5iには、内三つ折り形式及び四つ折り形式による折畳み後の用紙Pを一つの用紙スタッカ(第一用紙スタッカ)8asに排出する第一排紙系8aと、外三つ折り形式及び観音折り形式による折畳み後の用紙Pを他の用紙スタッカ(第二用紙スタッカ)8bsに排出する第二排紙系8bとを設けることができる。この場合、第一排紙系8aには、後主ローラ7m及び一方の後副ローラ7p間から送出された用紙Pが、第二後搬送路12bを横切るための当該第二後搬送路12bを分断して形成した排紙路15を設けることができる。他方、第二排紙系8bには、後主ローラ7mと他方の後副ローラ7qから送出される用紙Pを、排出搬送路4又は第二用紙スタッカ8bsに対して選択的に搬出可能な搬出切換機構部16を設けることができる。   In addition, a group with a long length in the conveyance direction after folding belongs to a two-fold type and a Z-fold type, and a group with a short length in the conveyance direction after folding has an outer tri-fold type and an inner tri-fold type. Forms, quadruple forms, and Kannon fold forms can belong. On the other hand, the internal paper discharge mechanism 5i includes a first paper discharge system 8a for discharging the folded paper P in the inner tri-fold type and the four-fold type to one paper stacker (first paper stacker) 8as, and an outer three-fold type. There can be provided a second paper discharge system 8b for discharging the folded paper P in the folding type and the kannon folding type to another paper stacker (second paper stacker) 8bs. In this case, the first paper discharge system 8a is provided with the second rear transport path 12b through which the paper P sent from between the rear main roller 7m and one rear sub-roller 7p crosses the second rear transport path 12b. A paper discharge path 15 formed by dividing can be provided. On the other hand, the second paper discharge system 8b can carry out the paper P sent out from the rear main roller 7m and the other rear sub-roller 7q selectively to the discharge conveyance path 4 or the second paper stacker 8bs. A switching mechanism 16 can be provided.

このような構成を有する本発明に係る用紙折畳み装置1によれば、次のような顕著な効果を奏する。   According to the sheet folding device 1 according to the present invention having such a configuration, the following remarkable effects can be obtained.

(1) 用紙搬入口2iから搬入される用紙Pを折り畳む用紙折畳み機構部3及びこの用紙折畳み機構部3から送出される折畳み後の用紙Pを用紙搬出口2eまで搬送する排出搬送路4を備えるとともに、折畳み後における搬送方向の長さが長いグループに属する折り形式の用紙Pを、排出搬送路4に排出する外部排紙機構部5eと、折畳み後における搬送方向の長さが短いグループに属する折り形式の用紙Pを、折り処理部7における複数の用紙送出位置Xa,Xbに対応して配設した複数の用紙スタッカ8as,8bsに排出する内部排紙機構部5iとを備えるため、折畳み後における搬送方向の長さが異なる様々な折り形式の用紙P…であっても、各用紙P…を円滑かつ最適な状態で搬送し、かつ排紙することができる。   (1) A paper folding mechanism 3 that folds the paper P that is carried in from the paper carry-in port 2i and a discharge conveyance path 4 that carries the folded paper P that is sent out from the paper folding mechanism 3 to the paper carry-out port 2e are provided. In addition, an external paper discharge mechanism 5e that discharges the folded-type paper P belonging to a group having a long conveyance direction after folding to the discharge conveyance path 4 and a group having a short conveyance direction after folding. Since it includes the internal paper discharge mechanism 5i that discharges the folded paper P to a plurality of paper stackers 8as and 8bs arranged corresponding to the plurality of paper delivery positions Xa and Xb in the folding processing unit 7, Even in the case of various fold-type papers P in which the lengths in the transport direction are different, the papers P can be smoothly and optimally transported and discharged.

(2) 折畳み後における搬送方向の長さが長いグループに属する折り形式の用紙P…は、外部排紙機構部5sにより排出搬送路4に排出するとともに、折畳み後における搬送方向の長さが短いグループに属する折り形式の用紙P…は、複数の用紙スタッカ8as,8bsに対して内部排紙機構部5iにより選択的に排出するため、排出搬送路4が長い距離になる場合であっても、搬送路に配設するローラ機構の配設数量を削減できるとともに、内部排紙機構部5iにおける搬送路に必要なローラ機構の配設数量も削減できる。したがって、搬送路全体の単純化が可能となり、部品点数の削減によるコストダウンを図ることができるとともに、加えて、各用紙スタッカ8as,8bsのサイズダウンを図ることができる。   (2) Folded sheets P belonging to a group having a long conveyance direction after folding are discharged to the discharge conveyance path 4 by the external paper discharge mechanism 5s and short in the conveyance direction after folding. Since the folded paper P ... belonging to the group is selectively discharged by the internal paper discharge mechanism 5i with respect to the plurality of paper stackers 8as, 8bs, even if the discharge conveyance path 4 has a long distance, The number of roller mechanisms arranged on the conveyance path can be reduced, and the number of roller mechanisms necessary on the conveyance path in the internal paper discharge mechanism 5i can be reduced. Therefore, the entire conveyance path can be simplified, the cost can be reduced by reducing the number of parts, and the size of each paper stacker 8as, 8bs can be reduced.

(3) 好適な態様により、用紙折畳み機構部3に、圧接した一対の前ローラ6p,6qを有する前折り処理部6と、後主ローラ7mの両側に圧接させた一対の後副ローラ7p,7qを有する後折り処理部7と、搬送された用紙Pを前折り処理部6に対してローラ配列方向Fmへ搬入する前搬送路11sを有する前搬入機構部11と、一対の前ローラ6pと6q間を通過した用紙Pを後折り処理部7のローラ配列方向Fnであって後折り処理部7の搬送方向左右両側に搬入可能な第一後搬送路12aと第二後搬送路12b,及び第一後搬送路12a又は第二後搬送路12bに対して用紙Pを選択的に搬入させる後搬送路切換フラッパ12cを有する後搬入機構部12とを設ければ、装置全体における折り処理部は、前折り処理部6と後折り処理部7の二つで足りるとともに、折り処理に要するローラも計五つで足りる。このため、部品点数の削減及び各処理部6,7を配設するための省スペース化が可能となり、装置全体の更なる小型化及びコストダウンを図ることができる。特に、この種の用紙折畳み装置では、ローラ径を小さくしたり搬送路の曲率を大きくするほど、装置全体を小型化できるが、反面、厚紙の折畳みに対しては不利になる。しかし、本発明に係る用紙折畳み装置1では、前折り処理部6と後折り処理部7の二つの折り処理部を用いるとともに、合理的なレイアウトを採用したため、従来の用紙折畳み装置(特許文献1)に対して、装置の小型化と厚紙の折畳み処理の双方を実現できるとともに、そのバランスの最適化を図ることができる。   (3) According to a preferred embodiment, the front folding processing unit 6 having a pair of front rollers 6p and 6q in pressure contact with the sheet folding mechanism unit 3 and a pair of rear sub-rollers 7p in pressure contact with both sides of the rear main roller 7m A rear folding processing unit 7 having 7q, a front carry-in mechanism unit 11 having a front carrying path 11s for carrying the conveyed paper P to the front folding processing unit 6 in the roller arrangement direction Fm, and a pair of front rollers 6p. A first rear transport path 12a and a second rear transport path 12b in which the sheet P that has passed between 6q can be transported in the roller arrangement direction Fn of the rear folding processing section 7 and on both left and right sides in the transport direction of the rear folding processing section 7. If the rear carry-in mechanism 12 having the rear carry-path switching flapper 12c for selectively carrying the paper P into the first rear carry-path 12a or the second rear carry-path 12b is provided, the folding processing section in the entire apparatus is , Front fold processing unit 6 and back fold processing With sufficient in two parts 7, the roller also suffice total five of that required for the folding process. For this reason, it is possible to reduce the number of parts and save space for disposing the processing units 6 and 7, and further downsizing and cost reduction of the entire apparatus can be achieved. In particular, in this type of paper folding device, the smaller the roller diameter or the larger the curvature of the conveyance path, the smaller the entire device can be made, but it is disadvantageous for folding thick paper. However, since the sheet folding device 1 according to the present invention uses two folding processing units, the front folding processing unit 6 and the rear folding processing unit 7, and adopts a rational layout, the conventional sheet folding device (Patent Document 1). ), It is possible to realize both the downsizing of the apparatus and the folding process of the cardboard, and the balance can be optimized.

(4) 好適な態様により、後折り処理部7に、後主ローラ7mと一方の後副ローラ7p間を通過した用紙Pを、後主ローラ7mと他方の後副ローラ7qのローラ配列方向Fnへ搬入可能な搬送方向切換フラッパ13x,13yを設ければ、特に、後主ローラ7mと一方の後副ローラ7p間及び後主ローラ7mと他方の後副ローラ7q間の双方を利用する観音折りを確実に行うことができる。   (4) According to a preferred aspect, the paper P that has passed between the rear main roller 7m and one rear sub-roller 7p is passed through the rear folding processing unit 7 to the roller arrangement direction Fn of the rear main roller 7m and the other rear sub-roller 7q. If the conveyance direction switching flappers 13x and 13y that can be carried in are provided, in particular, the folding between the rear main roller 7m and one rear sub-roller 7p and between the rear main roller 7m and the other rear sub-roller 7q is used. Can be performed reliably.

(5) 好適な態様により、用紙折畳み装置1に、上端が用紙Pの搬入側となり下端が用紙Pの搬出側となる半円状に湾曲させた主搬送路14を設け、この主搬送路14の上側に前折り処理部6を配設し、かつ主搬送路14の下側に後折り処理部7を配設するとともに、主搬送路14の中間位置に後搬送路切換フラッパ12cを配設し、この後搬送路切換フラッパ12cよりも搬送方向前方における主搬送路14を、第一後搬送路12aとして用いれば、主搬送路14及び後折り処理部7に対して、本発明における外部排紙機構部5s,内部排紙機構部5i及び用紙スタッカ8as,8bsに係わる全体構成を最適な形態及びレイアウトにより実現できる。   (5) According to a preferred embodiment, the sheet folding apparatus 1 is provided with a main conveyance path 14 that is curved in a semicircular shape with the upper end being the carry-in side of the paper P and the lower end being the carry-out side of the paper P. The front folding processing unit 6 is disposed on the upper side, the rear folding processing unit 7 is disposed on the lower side of the main conveying path 14, and the rear conveying path switching flapper 12 c is disposed at an intermediate position of the main conveying path 14. However, if the main transport path 14 in the transport direction ahead of the rear transport path switching flapper 12c is used as the first rear transport path 12a, the main transport path 14 and the post-folding processing unit 7 are connected to the external discharge in the present invention. The overall configuration related to the paper mechanism unit 5s, the internal paper discharge mechanism unit 5i, and the paper stackers 8as and 8bs can be realized by an optimum form and layout.

(6) 好適な態様により、折畳み後における搬送方向の長さが長いグループに、二つ折り形式及びZ折り形式を属させるとともに、折畳み後における搬送方向の長さが短いグループに、外三つ折り形式,内三つ折り形式,四つ折り形式及び観音折り形式を属させれば、主要六種の折り形式に係わる各用紙P…に対した円滑かつ最適な状態での搬送及び排紙を的確に実施できる。   (6) According to a preferred embodiment, the group having a long length in the conveyance direction after folding belongs to the two-fold type and the Z-fold type, and the group having a short length in the conveyance direction after folding is divided into an outer tri-fold type. , Inner fold type, quadruple fold type, and kannon fold type can be carried out accurately and smoothly in a smooth and optimum state for each of the papers P ... related to the six main fold types. .

(7) 好適な態様により、内部排紙機構部5iに、内三つ折り形式及び四つ折り形式による折畳み後の用紙Pを一つの用紙スタッカ(第一用紙スタッカ)8asに排出する第一排紙系8aと、外三つ折り形式及び観音折り形式による折畳み後の用紙Pを他の用紙スタッカ(第二用紙スタッカ)8bsに排出する第二排紙系8bとを設ければ、後折り処理部12から送出される各用紙P…をそれぞれそのまま前方へ搬送し、最短距離で各用紙スタッカ8as,8bsに排出させることができるため、特に、厚紙を用いた用紙Pの折畳みに最適となる。   (7) According to a preferred embodiment, the first paper discharge system for discharging the paper P after folding in the inner tri-fold type and the four-fold type into the single paper stacker (first paper stacker) 8as in the internal paper discharge mechanism 5i. If the second paper discharge system 8b for discharging the paper P after folding in the outer tri-fold format and the kannon folding format to another paper stacker (second paper stacker) 8bs is provided, Each sheet P to be sent can be conveyed forward as it is and discharged to each sheet stacker 8as, 8bs at the shortest distance, so that it is particularly suitable for folding the sheet P using thick sheets.

(8) 好適な態様により、第一排紙系8aに、後主ローラ7m及び一方の後副ローラ7p間から送出された用紙Pが、第二後搬送路12bを横切るための当該第二後搬送路12bを分断して形成した排紙路15を設ければ、後主ローラ7mと一方の後副ローラ7p間から送出される用紙Pを確実かつ速やかに第一用紙スタッカ8asへ排出できるとともに、そのまま前方への搬送を実現できる。   (8) According to a preferred embodiment, the second rear side for allowing the paper P sent out from between the rear main roller 7m and one rear sub-roller 7p to the first paper discharge system 8a to cross the second rear transport path 12b. If the paper discharge path 15 formed by dividing the conveyance path 12b is provided, the paper P delivered from between the rear main roller 7m and one rear sub-roller 7p can be discharged to the first paper stacker 8as reliably and promptly. As a result, the forward conveyance can be realized.

(9) 好適な態様により、第二排紙系8bに、後主ローラ7mと他方の後副ローラ7qから送出される用紙Pを、排出搬送路4又は第二用紙スタッカ8bsに対して選択的に搬出可能な搬出切換機構部16を設ければ、後主ローラ7mと他方の後副ローラ7qから送出される用紙Pを、確実かつ速やかに第二用紙スタッカ8bsへ排出できるとともに、排出搬送路4側又は第二用紙スタッカ8bs側へ確実に振り分けることができる。   (9) According to a preferred embodiment, the paper P sent out from the rear main roller 7m and the other rear sub-roller 7q to the second paper discharge system 8b is selectively selected with respect to the discharge conveyance path 4 or the second paper stacker 8bs. If the carry-out switching mechanism 16 that can be carried out is provided, the paper P sent out from the rear main roller 7m and the other rear sub-roller 7q can be discharged reliably and promptly to the second paper stacker 8bs, and the discharge conveyance path The sheet can be reliably distributed to the 4th side or the second sheet stacker 8bs side.

本発明の好適実施形態に係る用紙折畳み装置の正面から見た全体の内部構成図、The whole internal block diagram seen from the front of the paper folding device concerning a suitable embodiment of the present invention, 同用紙折畳み装置の要部構成図、Main part configuration diagram of the paper folding device, 同用紙折畳み装置の制御系のブロック系統図、Block diagram of the control system of the paper folding device, 同用紙折畳み装置による二つ折り時の動作説明図、Operation explanatory diagram when folding in half with the same paper folding device, 同用紙折畳み装置によるZ折り時の動作説明図、Operation explanatory diagram at the time of Z-folding by the paper folding device, 同用紙折畳み装置による外三つ折り時の動作説明図、Operation explanatory diagram at the time of outer trifold by the paper folding device, 同用紙折畳み装置による内三つ折り時の動作説明図、Operation explanatory diagram at the time of inner fold by the same paper folding device, 同用紙折畳み装置による四つ折り時の動作説明図、Operation explanatory diagram at the time of four folding by the same paper folding device, 同用紙折畳み装置による観音折り時の動作説明図、Operation explanatory diagram at the time of Kannon folding by the paper folding device,

次に、本発明に係る好適実施形態を挙げ、図面に基づき詳細に説明する。   Next, preferred embodiments according to the present invention will be given and described in detail with reference to the drawings.

まず、本実施形態に係る用紙折畳み装置1の構成について、図1〜図3を参照して説明する。   First, the configuration of the sheet folding device 1 according to the present embodiment will be described with reference to FIGS.

最初に、用紙折畳み装置1の全体の構成について、図1を参照して説明する。例示の用紙折畳み装置1は、印刷装置90のオプション装置であり、用紙後処理装置(第一用紙後処理装置)として位置付けられる。したがって、印刷装置90の後段に設置、具体的には印刷装置90の用紙排出口に対向させて設置する。一方、用紙折畳み装置1の更に後段には、必要に応じて製本装置等の第二用紙後処理装置91を付設することができる。   Initially, the whole structure of the paper folding apparatus 1 is demonstrated with reference to FIG. The illustrated sheet folding apparatus 1 is an optional apparatus of the printing apparatus 90 and is positioned as a sheet post-processing apparatus (first sheet post-processing apparatus). Accordingly, it is installed at the rear stage of the printing apparatus 90, specifically, facing the paper discharge port of the printing apparatus 90. On the other hand, a second sheet post-processing device 91 such as a bookbinding device can be attached to the subsequent stage of the sheet folding device 1 as necessary.

用紙折畳み装置1は、キャビネット2を備え、このキャビネット2における底部2dの外面(下面)には複数のキャスタ81…を備える。また、キャビネット2における底部2dの内面(上面)には、二つの用紙スタッカ、即ち、第一用紙スタッカ8asと第二用紙スタッカ8bsを配する。各用紙スタッカ8as,8bsは、例えば、スライドさせることにより外部に引出可能な引出形式に構成することができる。本実施形態に係る用紙折畳み装置1では、第一用紙スタッカ8asに、四つ折りされた用紙Pと観音折りされた用紙Pを排出し、第二用紙スタッカ8bsに、外三つ折りされた用紙Pと内三つ折りされた用紙Pを排出することができる。さらに、キャビネット2の左パネル部2pには用紙搬入口2iを設けるとともに、右パネル部2qには用紙搬出口2eを設ける。   The sheet folding apparatus 1 includes a cabinet 2, and a plurality of casters 81 are provided on the outer surface (lower surface) of the bottom 2d of the cabinet 2. Two paper stackers, that is, a first paper stacker 8as and a second paper stacker 8bs are arranged on the inner surface (upper surface) of the bottom 2d of the cabinet 2. Each of the sheet stackers 8as and 8bs can be configured in a drawer format that can be pulled out by sliding, for example. In the sheet folding device 1 according to the present embodiment, the folded paper P and the folded paper P are discharged to the first paper stacker 8as, and the outer three-folded paper P is discharged to the second paper stacker 8bs. The sheet P folded in three can be discharged. Furthermore, the left panel portion 2p of the cabinet 2 is provided with a paper carry-in port 2i, and the right panel portion 2q is provided with a paper carry-out port 2e.

他方、キャビネット2の内部における用紙搬入口2iから用紙搬出口2e間には、ほぼ水平となる水平搬送路82を配設するとともに、この水平搬送路82と各用紙スタッカ8as,8bs間、即ち、水平搬送路82の下方であって、各用紙スタッカ8as,8bsの上方における空間には、用紙折畳み機構部3を配設する。水平搬送路82は、前段の搬入路82iと、中段の通過搬送路82pと、後段の搬出路82eからなる。そして、搬入路82iの下流端からは下方に至る前搬送路11sの上端を分岐させるとともに、搬出路82eの上流端には下方からの排出搬送路4の上端を合流させる。また、搬入路82iの下流端に対向させた切換フラッパ83を配設する。この切換フラッパ83は不図示のソレノイドにより切換られ、搬入路82iの下流端に対して、通過搬送路82pの上流端又は前搬送路11sの上流端を選択的に接続することができる。前搬送路11sと排出搬送路4は、用紙折畳み機構部3の一部となり、折畳み前の用紙Pは前搬送路11sにより搬入されるとともに、折畳み後の用紙P、具体的には、二つ折りされた用紙PとZ折りされた用紙Pは排出搬送路4により搬出される。   On the other hand, between the paper carry-in port 2i and the paper carry-out port 2e inside the cabinet 2, a substantially horizontal horizontal conveyance path 82 is disposed, and between the horizontal conveyance path 82 and each of the paper stackers 8as and 8bs, that is, The paper folding mechanism 3 is disposed in a space below the horizontal conveyance path 82 and above the paper stackers 8as and 8bs. The horizontal conveyance path 82 includes a front carry-in path 82i, a middle pass conveyance path 82p, and a rear carry-out path 82e. Then, the upper end of the front conveyance path 11s that extends downward from the downstream end of the carry-in path 82i is branched, and the upper end of the discharge conveyance path 4 from below is joined to the upstream end of the carry-out path 82e. In addition, a switching flapper 83 is provided to face the downstream end of the carry-in path 82i. The switching flapper 83 is switched by a solenoid (not shown), and can selectively connect the upstream end of the passing transport path 82p or the upstream end of the front transport path 11s to the downstream end of the carry-in path 82i. The front conveyance path 11s and the discharge conveyance path 4 become a part of the paper folding mechanism unit 3, and the paper P before folding is carried in by the front conveyance path 11s, and the folded paper P, specifically, folded in half. The sheet P and the Z-folded sheet P are carried out by the discharge conveyance path 4.

図2には、用紙折畳み機構部3を抽出して示す。用紙折畳み機構部3は、上端が用紙Pの搬入側となり下端が用紙Pの搬出側となる半円状に湾曲させた主搬送路14を備える。そして、主搬送路14の上側に前折り処理部6を配設し、かつ主搬送路14の下側に後折り処理部7を配設する。   In FIG. 2, the paper folding mechanism part 3 is extracted and shown. The sheet folding mechanism unit 3 includes a main conveyance path 14 that is curved in a semicircular shape with an upper end on the paper P carry-in side and a lower end on the paper P carry-out side. Then, the front folding processing unit 6 is disposed on the upper side of the main conveyance path 14, and the rear folding processing unit 7 is disposed on the lower side of the main conveyance path 14.

前折り処理部6は、圧接した一対の前ローラ6p,6qを備えるとともに、前搬送路11sにより搬入された用紙P…の所定位置K1…を一対の前ローラ6p,6q間に進入させる前折ガイド17を備える。この場合、一対の前ローラ6p,6qは上下に配し、かつ主搬送路14の上端開口の手前に配設するとともに、一方の前ローラ6pは前折モータM1により回転可能に構成する。一方、上述した搬入路82iの下流端から分岐させた前搬送路11sは下方に至らせ、その中間位置を前ローラ6p,6qの手前に位置させる。これにより、搬入路82iから搬送された用紙Pを、前搬送路11sにより前折り処理部6に対してローラ配列方向Fmへ搬入する前搬入機構部11が構成される。前折ガイド17は、前折ソレノイドC1(図3)を用いたガイド移動機構により移動可能に構成する。図2中、実線の前折ガイド17はリリース位置に移動した状態、仮想線の前折ガイド17pは押込位置に移動した状態をそれぞれ示す。さらに、21は一方の前ローラ6pと搬送ローラRにより構成したレジローラ機構を示すとともに、S1はレジローラ機構21の手前に配した前折レジセンサを示す。   The front folding processing unit 6 includes a pair of front rollers 6p and 6q that are in pressure contact with each other, and also performs a front folding process in which a predetermined position K1 of the paper P that is carried in by the front transport path 11s enters between the pair of front rollers 6p and 6q. A guide 17 is provided. In this case, the pair of front rollers 6p and 6q are arranged vertically and disposed in front of the upper end opening of the main conveyance path 14, and the one front roller 6p is configured to be rotatable by the front folding motor M1. On the other hand, the front conveyance path 11s branched from the downstream end of the carry-in path 82i described above is brought downward, and its intermediate position is positioned before the front rollers 6p and 6q. As a result, the front carry-in mechanism unit 11 is configured to carry the paper P conveyed from the carry-in path 82i to the front folding processing unit 6 in the roller arrangement direction Fm through the front conveyance path 11s. The front folding guide 17 is configured to be movable by a guide moving mechanism using a front folding solenoid C1 (FIG. 3). In FIG. 2, the solid line front folding guide 17 is moved to the release position, and the virtual line front folding guide 17 p is moved to the pushing position. Further, reference numeral 21 denotes a registration roller mechanism constituted by one front roller 6p and the conveying roller R, and S1 denotes a front folding registration sensor arranged in front of the registration roller mechanism 21.

また、主搬送路14には、一対の前ローラ6pと6q間を通過した用紙Pを、後述する後折り処理部7のローラ配列方向Fnであって後折り処理部7の搬送方向左右両側に搬入可能な一対の後搬送路12a,12bを有するとともに、主搬送路14の中間位置に配することにより、一対の後搬送路12a,12bに対して用紙Pを選択的に進入させる後搬送路切換フラッパ12cを有する後搬入機構部12を設ける。この場合、図2に示すように、後搬送路切換フラッパ12cよりも搬送方向前方における主搬送路14を、一方の後搬送路(第一後搬送路)12aとして用いるとともに、別途、弓状の搬送路を追加して他方の後搬送路(第二後搬送路)12bとして構成する。後搬送路切換フラッパ12cは、後切換ソレノイドC2(図3)を用いたフラッパ切換機構により切換可能に構成する。図2中、実線の後搬送路切換フラッパ12cは第一後搬送路12aへの搬入位置に切換えた状態、仮想線の後搬送路切換フラッパ12ceは第二後搬送路12bへの搬入位置に切換えた状態をそれぞれ示す。   Further, the paper P that has passed between the pair of front rollers 6p and 6q is placed in the main transport path 14 on the left and right sides of the transport direction of the rear folding processing unit 7 in the roller arrangement direction Fn of the rear folding processing unit 7 to be described later. A rear transport path having a pair of rear transport paths 12a and 12b that can be carried in and allowing paper P to selectively enter the pair of rear transport paths 12a and 12b by being disposed at an intermediate position of the main transport path 14 A rear carry-in mechanism 12 having a switching flapper 12c is provided. In this case, as shown in FIG. 2, the main transport path 14 in the transport direction ahead of the rear transport path switching flapper 12c is used as one rear transport path (first rear transport path) 12a, and an arcuate shape is separately provided. A transport path is added to form the other rear transport path (second rear transport path) 12b. The rear transport path switching flapper 12c is configured to be switchable by a flapper switching mechanism using a rear switching solenoid C2 (FIG. 3). In FIG. 2, the solid line rear conveyance path switching flapper 12 c is switched to the carry-in position to the first rear conveyance path 12 a, and the virtual line rear conveyance path switching flapper 12 ce is switched to the conveyance position to the second rear conveyance path 12 b. Each state is shown.

他方、主搬送路14の下側に配設する後折り処理部7は、後主ローラ7mと、この後主ローラ7mの両側に圧接させた一対の後副ローラ7p,7qを備えるとともに、第一後搬送路12aから搬入された用紙P…の所定位置K3…を後主ローラ7mと一方の後副ローラ7p間に進入させる変位可能な第一後折ガイド18と、第二後搬送路12bから搬入された用紙P…の所定位置K7…を後主ローラ7mと他方の後副ローラ7q間に進入させる変位可能な第二後折ガイド19を備える。後主ローラ7mと後副ローラ7pは主搬送路14に沿って配し、後主ローラ7mは、後折モータM2により回転可能に構成する。また、第一後折ガイド18は、第一後折ソレノイドC3(図3)を用いたガイド移動機構により移動可能に構成する。図2中、実線の第一後折ガイド18はリリース位置に移動した状態、仮想線の第一後折ガイド18pは押込位置に移動した状態をそれぞれ示す。第二後折ガイド19は、第二後折ソレノイドC4(図3)を用いたガイド移動機構により移動可能に構成する。図2中、実線の第二後折ガイド19はリリース位置に移動した状態、仮想線の第二後折ガイド19pは押込位置に移動した状態をそれぞれ示す。   On the other hand, the rear folding processing unit 7 disposed below the main conveyance path 14 includes a rear main roller 7m and a pair of rear sub-rollers 7p and 7q pressed against both sides of the rear main roller 7m. A displaceable first rear folding guide 18 for entering a predetermined position K3 of the paper P ... carried in from the first rear conveying path 12a between the rear main roller 7m and one rear auxiliary roller 7p, and a second rear conveying path 12b. Is provided with a displaceable second rear folding guide 19 for allowing a predetermined position K7 of the paper P, which has been carried in, to enter between the rear main roller 7m and the other rear sub-roller 7q. The rear main roller 7m and the rear auxiliary roller 7p are arranged along the main conveyance path 14, and the rear main roller 7m is configured to be rotatable by a rear folding motor M2. The first rear folding guide 18 is configured to be movable by a guide moving mechanism using a first rear folding solenoid C3 (FIG. 3). In FIG. 2, the solid first rear folding guide 18 is moved to the release position, and the virtual first rear folding guide 18 p is moved to the pushing position. The second rear folding guide 19 is configured to be movable by a guide moving mechanism using a second rear folding solenoid C4 (FIG. 3). In FIG. 2, the second rear folding guide 19 indicated by a solid line is moved to the release position, and the second rear folding guide 19 p indicated by an imaginary line is shown moved to the pushing position.

このように、後折り処理部7に、第一後搬送路12aにより搬入された用紙P…の所定位置K7…を後主ローラ7mと一方の後副ローラ7p間に進入させる変位可能な第一後折ガイド18と、第二後搬送路12bから搬入された用紙Pの所定位置K3…を後主ローラ7mと他方の後副ローラ7q間に進入させる変位可能な第二後折ガイド19を設ければ、二つ折り,Z折り,外三つ折り,内三つ折り,四つ折り及び観音折りを含む主要六種の全ての折畳みを円滑かつ安定に行える利点がある。また、上端が用紙Pの搬入側となり下端が用紙Pの搬出側となる半円状に湾曲させた主搬送路14を設け、この主搬送路14の上側に前折り処理部6を配設し、かつ主搬送路14の下側に後折り処理部7を配設するとともに、主搬送路14の中間位置に後搬送路切換フラッパ12cを配設し、この後搬送路切換フラッパ12cよりも搬送方向前方における主搬送路14を、第一後搬送路12aとして用いれば、主搬送路14及び後折り処理部7に対して、本発明における外部排紙機構部5s,内部排紙機構部5i及び用紙スタッカ8as,8bsに係わる全体構成を最適な形態及びレイアウトにより実現できる。   In this way, the first position displaceable by which the predetermined position K7... Of the paper P carried by the first rear conveyance path 12a is entered between the rear main roller 7m and the one rear sub-roller 7p in the rear folding processing section 7 in this way. A rear folding guide 18 and a displaceable second rear folding guide 19 for allowing a predetermined position K3... Of the paper P carried from the second rear conveying path 12b to enter between the rear main roller 7m and the other rear sub-roller 7q are provided. Thus, there is an advantage that all the six main folds including the two folds, the Z folds, the outer three folds, the inner three folds, the four folds and the Kannon fold can be performed smoothly and stably. Also, a main conveyance path 14 is provided that is curved in a semicircular shape with the upper end on the paper P carry-in side and the lower end on the paper P carry-out side, and the front folding processing unit 6 is disposed above the main conveyance path 14. In addition, the rear folding processing unit 7 is disposed below the main transport path 14, and the rear transport path switching flapper 12c is disposed at an intermediate position of the main transport path 14, and transports more than the rear transport path switching flapper 12c. If the main conveyance path 14 in the forward direction is used as the first rear conveyance path 12a, the external paper discharge mechanism 5s, the internal paper discharge mechanism 5i, The overall configuration related to the paper stackers 8as and 8bs can be realized by an optimum form and layout.

さらに、後主ローラ7mよりも搬送方向前方における第一後搬送路12aには、第一後折レジセンサS2及び一対の搬送ローラR…を有するレジローラ機構22を順次配設するとともに、他方の後副ローラ7qよりも搬送方向前方における第二後搬送路12bには、第二後折レジセンサS3及び一対の搬送ローラR…を有するレジローラ機構23を順次配設する。なお、レジローラ機構22における一方の搬送ローラRは、後折モータM2により回転可能に構成する。したがって、後折モータM2は、正逆回転し、レジローラ機構22による用紙Pの搬送時には、レジローラ機構22を搬送方向に回転させるとともに、第一後折ガイド7による用紙Pに対する折畳み時には、後主ローラ3mを折畳む方向に回転させる。他方、レジローラ機構23における一方の搬送ローラRは、後レジモータM3により回転可能に構成する。   Further, a registration roller mechanism 22 having a first rear folding registration sensor S2 and a pair of conveyance rollers R... Is sequentially disposed in the first rear conveyance path 12a in the conveyance direction ahead of the rear main roller 7m, and the other rear auxiliary roller. In the second rear conveyance path 12b in front of the roller 7q in the conveyance direction, a registration roller mechanism 23 having a second rear folding registration sensor S3 and a pair of conveyance rollers R. In addition, one conveyance roller R in the registration roller mechanism 22 is configured to be rotatable by a rear folding motor M2. Accordingly, the rear folding motor M2 rotates forward and backward, rotates the registration roller mechanism 22 in the transport direction when the registration roller mechanism 22 transports the paper P, and also rotates the rear main roller when folding the paper P with the first rear folding guide 7. Rotate 3m in the folding direction. On the other hand, one conveyance roller R in the registration roller mechanism 23 is configured to be rotatable by a rear registration motor M3.

また、後折り処理部7には、後主ローラ7mと一方の後副ローラ7p間を通過した用紙Pを、後主ローラ7mと他方の後副ローラ7qのローラ配列方向Fnへ搬入可能な搬送方向切換フラッパ13x,13yを配設する。各切換フラッパ13x,13yは、それぞれ独立して切換えられる。一方の搬送方向切換フラッパ(第一方向切換フラッパ)13xは、第一方向切換ソレノイドC5(図3)を用いたフラッパ切換機構により切換可能に構成する。これにより、第一方向切換フラッパ13xは、図2及び図4中、実線で示す第一方向切換フラッパ13xの位置又は仮想線で示す第一方向切換フラッパ13xeの位置にそれぞれ選択的に切換えられる。同様に、他方の搬送方向切換フラッパ(第二方向切換フラッパ)13yは、第二方向切換ソレノイドC6(図3)を用いたフラッパ切換機構により切換可能に構成する。これにより、第二方向切換フラッパ13yは、図2及び図4中、実線で示す第二方向切換フラッパ13yの位置又は仮想線で示す第二方向切換フラッパ13yeの位置にそれぞれ選択的に切換えられる。   Further, the rear folding processing unit 7 can transport the paper P that has passed between the rear main roller 7m and one rear sub-roller 7p in the roller arrangement direction Fn of the rear main roller 7m and the other rear sub-roller 7q. Direction switching flappers 13x and 13y are provided. Each switching flapper 13x, 13y is switched independently. One conveyance direction switching flapper (first direction switching flapper) 13x is configured to be switchable by a flapper switching mechanism using a first direction switching solenoid C5 (FIG. 3). Accordingly, the first direction switching flapper 13x is selectively switched to the position of the first direction switching flapper 13x indicated by a solid line or the position of the first direction switching flapper 13xe indicated by a virtual line in FIGS. Similarly, the other conveyance direction switching flapper (second direction switching flapper) 13y is configured to be switchable by a flapper switching mechanism using a second direction switching solenoid C6 (FIG. 3). As a result, the second direction switching flapper 13y is selectively switched to the position of the second direction switching flapper 13y indicated by a solid line or the position of the second direction switching flapper 13ye indicated by a virtual line in FIGS.

このように、後折り処理部7に、後主ローラ7mと一方の後副ローラ7p間を通過した用紙Pを、後主ローラ7mと他方の後副ローラ7qのローラ配列方向Fnへ搬入可能な搬送方向切換フラッパ13x,13yを設ければ、特に、後主ローラ7mと一方の後副ローラ7p間及び後主ローラ7mと他方の後副ローラ7q間の双方を利用する観音折りを確実に行うことができる。   In this way, the paper P that has passed between the rear main roller 7m and one rear sub-roller 7p can be carried into the rear folding processing section 7 in the roller arrangement direction Fn of the rear main roller 7m and the other rear sub-roller 7q. If the conveyance direction switching flappers 13x and 13y are provided, in particular, the folding operation using both the rear main roller 7m and one rear sub-roller 7p and between the rear main roller 7m and the other rear sub-roller 7q is reliably performed. be able to.

さらに、上述した搬出路82eの上流端に合流する排出搬送路4は下方に至らせ、下部を半円状に湾曲させるとともに、排出搬送路4の上流端(下端)は、主搬送路14の下端開口に連続させる。これにより、主搬送路14と排出搬送路4の下部4dにより円状の搬送路85が形成される。したがって、この主搬送路14と、排出搬送路4に用紙Pを搬出可能な後述する搬出切換機構部16は、折畳み後における搬送方向の長さが長いグループに属する折り形式の用紙P、具体的には、二つ折り形式により折畳まれた用紙P及びZ折り形式により折畳まれた用紙Pを、排出搬送路4に排出する外部排紙機構部5sとして構成する。   Further, the discharge conveyance path 4 that joins the upstream end of the carry-out path 82e described above is brought downward, the lower part is curved in a semicircular shape, and the upstream end (lower end) of the discharge conveyance path 4 is Continue to the bottom opening. As a result, a circular transport path 85 is formed by the main transport path 14 and the lower part 4 d of the discharge transport path 4. Accordingly, a carry-out switching mechanism 16 (to be described later) capable of carrying out the paper P to the main transport path 14 and the discharge transport path 4 is a folding-type paper P belonging to a group having a long length in the transport direction after folding. In this case, the external paper discharge mechanism 5s is configured to discharge the paper P folded in the bi-fold format and the paper P folded in the Z-fold format to the discharge conveyance path 4.

なお、本実施形態では、折畳み後における搬送方向の長さが長いグループに、折畳み前の用紙Pの長さに対して略半分の長さとなる二つ折り形式とZ折り形式を属させるとともに、折畳み後における搬送方向の長さが短いグループに、折畳み前の用紙Pの長さに対して略1/3又は略1/4の長さとなる外三つ折り形式,内三つ折り形式,四つ折り形式及び観音折り形式を属させるようにした。このようにグループ分けしたため、主要六種の折り形式に係わる各用紙P…に対して円滑かつ最適な状態での搬送及び排紙を的確に実施できる。   In the present embodiment, a group having a long length in the transport direction after folding belongs to a two-fold type and a Z-fold type, which are approximately half the length of the sheet P before folding, and the folding. A group having a short length in the subsequent conveyance direction is divided into an outer tri-fold format, an inner tri-fold format, a four-fold format, and a length that is approximately 1/3 or approximately 1/4 of the length of the sheet P before folding. Added Kannon folding format. As a result of such grouping, it is possible to accurately carry out and discharge paper in a smooth and optimal state with respect to each of the papers P.

他方、後折り処理部7の近傍には、折畳み後における搬送方向の長さが短いグループに属する折り形式の用紙P、具体的には、外三つ折り形式により折畳まれた用紙P,内三つ折り形式により折畳まれた用紙P,四つ折り形式により折畳まれた用紙P及び観音折り形式により折畳まれた用紙Pを、前述した各用紙スタッカ8as,8bsに排出する内部排紙機構部5iを配設する。この内部排紙機構部5iは、第一排紙系8aと第二排紙系8bを備える。   On the other hand, in the vicinity of the post-folding processing unit 7, a folded paper sheet P belonging to a group having a short length in the conveyance direction after folding, specifically, a paper sheet P folded in the outer tri-fold style, and the inner three papers. The internal paper discharge mechanism 5i that discharges the paper P folded by the fold format, the paper P folded by the quad fold format, and the paper P folded by the Kannon fold format to the paper stackers 8as and 8bs described above. Is disposed. The internal paper discharge mechanism 5i includes a first paper discharge system 8a and a second paper discharge system 8b.

第一排紙系8aは、後主ローラ7mと一方の後副ローラ7p間の接線方向前方(第一後折ガイド18に対して反対側)に配設する。したがって、後主ローラ7mと一方の後副ローラ7p間が折り処理部7における一方の用紙送出位置Xaとなり、第一排紙系8aは、この用紙送出位置Xaに対応して配設する。第一排紙系8aには、後主ローラ7m及び一方の後副ローラ7p間から送出された用紙Pが第二後搬送路12bを横切るための当該第二後搬送路12bを分断して形成した排紙路15を設ける。また、排紙路15よりも搬送方向前方には、一対の搬送ローラR…を有する排出ローラ機構32及び第一排出センサS4を順次配設する。そして、この第一排出センサS4よりも搬送方向前方、即ち、排出ローラ機構32の斜め下方に、前述した第一用紙スタッカ8asを位置させる。例示の場合、第一用紙スタッカ8asには、内三つ折り形式により折畳まれた用紙Pと四つ折り形式により折畳まれた用紙Pが排出される。このような第一排紙系8a(排紙路15)を設ければ、後主ローラ7mと一方の後副ローラ7p間から送出される用紙Pを確実かつ速やかに第一用紙スタッカ8asへ排出できるとともに、そのまま前方への搬送を実現できる利点がある。   The first paper discharge system 8a is disposed in a tangential front direction between the rear main roller 7m and one rear sub-roller 7p (on the opposite side to the first rear folding guide 18). Therefore, the space between the rear main roller 7m and one rear sub-roller 7p is one paper feed position Xa in the folding processing section 7, and the first paper discharge system 8a is arranged corresponding to this paper feed position Xa. The first paper discharge system 8a is formed by dividing the second rear conveyance path 12b through which the paper P delivered from between the rear main roller 7m and one rear sub-roller 7p crosses the second rear conveyance path 12b. The paper discharge path 15 is provided. Further, a discharge roller mechanism 32 having a pair of transport rollers R and a first discharge sensor S4 are sequentially disposed in front of the discharge path 15 in the transport direction. The first paper stacker 8as described above is positioned in front of the first discharge sensor S4 in the transport direction, that is, obliquely below the discharge roller mechanism 32. In the illustrated example, the paper P folded in the inner tri-fold format and the paper P folded in the quad-fold format are discharged to the first paper stacker 8as. If such a first paper discharge system 8a (paper discharge path 15) is provided, the paper P delivered from between the rear main roller 7m and one rear sub-roller 7p is reliably and promptly discharged to the first paper stacker 8as. In addition, there is an advantage that the forward conveyance can be realized as it is.

一方、第二排紙系8bは、後主ローラ7mと他方の後副ローラ7q間の接線方向前方(第二後折ガイド19に対して反対側)に配設する。したがって、後主ローラ7mと他方の後副ローラ7q間が折り処理部7における他方の用紙送出位置Xbとなり、第二排紙系8bは、この用紙送出位置Xbに対応して配設する。第二排紙系8bには、後主ローラ7mと他方の後副ローラ7qから送出される用紙Pを、排出搬送路4又は第二用紙スタッカ8bsに対して選択的に搬出可能な排出方向切換フラップ35を設ける。この排出方向切換フラップ35は、排出方向切換ソレノイドC7(図3)を用いた搬出切換機構部16により切換可能となる。このため、排出方向切換フラップ35よりも搬送方向前方には、排出搬送路4に合流する合流搬送路36を設けるとともに、他の方向であって、排出方向切換フラップ35よりも搬送方向前方には、一対の搬送ローラR…を有する排出ローラ機構34及び第二排出センサS5を順次配設し、さらに、この第二排出センサS5よりも搬送方向前方、即ち、排出ローラ機構34の斜め下方に、前述した第二用紙スタッカ8bsを位置させる。   On the other hand, the second paper discharge system 8b is disposed in the tangential front (reverse to the second rear folding guide 19) between the rear main roller 7m and the other rear sub-roller 7q. Therefore, the space between the rear main roller 7m and the other rear sub-roller 7q is the other paper feed position Xb in the folding processing section 7, and the second paper discharge system 8b is arranged corresponding to this paper feed position Xb. In the second paper discharge system 8b, the discharge direction is switched so that the paper P sent out from the rear main roller 7m and the other rear sub roller 7q can be selectively carried out to the discharge conveyance path 4 or the second paper stacker 8bs. A flap 35 is provided. The discharge direction switching flap 35 can be switched by the carry-out switching mechanism 16 using the discharge direction switching solenoid C7 (FIG. 3). Therefore, a confluence conveyance path 36 that merges with the discharge conveyance path 4 is provided in front of the discharge direction switching flap 35 in the conveyance direction, and in another direction, in front of the discharge direction switching flap 35 with respect to the conveyance direction. , A discharge roller mechanism 34 having a pair of transport rollers R and a second discharge sensor S5 are sequentially disposed, and further forward of the second discharge sensor S5 in the transport direction, that is, obliquely below the discharge roller mechanism 34. The second paper stacker 8bs described above is positioned.

これにより、図2中、実線で示す排出方向切換フラップ35の位置に切換えれば、用紙送出位置Xb(後主ローラ7mと他方の後副ローラ7q間)から搬出された用紙Pは、合流搬送路36を介して排出搬送路4に搬出されるとともに、仮想線の排出方向切換フラップ35eの位置に切換えれば、用紙送出位置Xbから搬出された用紙Pは、排出ローラ機構34を介して第二用紙スタッカ8bsに排出される。例示の場合、排出搬送路4には合流搬送路36を介してZ折り形式により折畳まれた用紙Pが搬出されるとともに、第二用紙スタッカ8bsには、外三つ折り形式により折畳まれた用紙P及び観音折り形式により折畳まれた用紙Pが排出される。このような第二排紙系8bを設ければ、後主ローラ7mと他方の後副ローラ7qから送出される用紙Pを、確実かつ速やかに第二用紙スタッカ8bsへ排出できるとともに、排出搬送路4側又は第二用紙スタッカ8bs側へ確実に振り分けることができる利点がある。   Accordingly, when the position is switched to the position of the discharge direction switching flap 35 indicated by the solid line in FIG. 2, the sheet P transported from the sheet delivery position Xb (between the rear main roller 7m and the other rear sub-roller 7q) is joined and transported. If the paper P is carried out to the discharge conveyance path 4 through the path 36 and is switched to the position of the virtual line discharge direction switching flap 35e, the paper P carried out from the paper delivery position Xb passes through the discharge roller mechanism 34. The paper is discharged to the two paper stacker 8bs. In the case of the example, the paper P folded in the Z-fold format is carried out to the discharge transport path 4 via the merging transport path 36 and is folded in the outer three-fold format to the second paper stacker 8bs. The paper P and the paper P folded in the Kannon folding format are discharged. If such a second paper discharge system 8b is provided, the paper P delivered from the rear main roller 7m and the other rear sub-roller 7q can be reliably and promptly discharged to the second paper stacker 8bs, and the discharge conveyance path There is an advantage that it can be reliably distributed to the 4th side or the second paper stacker 8bs side.

このように、内部排紙機構部5iには、内三つ折り形式及び四つ折り形式による折畳み後の用紙Pを一つの用紙スタッカ(第一用紙スタッカ)8asに排出する第一排紙系8aと、外三つ折り形式及び観音折り形式による折畳み後の用紙Pを他の用紙スタッカ(第二用紙スタッカ)8bsに排出する第二排紙系8bとを設けたため、後折り処理部12から送出される各用紙P…をそれぞれそのまま前方へ搬送し、最短距離で各用紙スタッカ8as,8bsに排出させることができるため、特に、厚紙を用いた用紙Pの折畳みに最適となる。   As described above, the internal paper discharge mechanism 5i includes the first paper discharge system 8a that discharges the folded paper P in the inner tri-fold format and the quarter-fold format to one paper stacker (first paper stacker) 8as. Since the second paper discharge system 8b for discharging the paper P after folding in the outer trifold format and the Kannon folding format to another paper stacker (second paper stacker) 8bs is provided, The sheets P are transported forward as they are, and can be discharged to the sheet stackers 8as and 8bs at the shortest distance, so that the sheet P is particularly suitable for folding the sheets P using thick sheets.

その他、本実施形態に係る用紙折畳み装置1の全体における各搬送路14…の所定位置には、用紙P…を搬送する一対の搬送ローラR…を有する複数の搬送ローラ機構を設けるとともに、各搬送路14…には搬送される用紙P…の搬送方向をガイドする複数のガイドプレートG…を設ける。なお、M4は各搬送路14…における搬送ローラR…を回転させる主搬送モータを示すとともに、S6は排出搬送路4の下部4dに設けたジャムセンサを示す。   In addition, a plurality of transport roller mechanisms having a pair of transport rollers R for transporting the paper P are provided at predetermined positions of the transport paths 14 in the entire sheet folding device 1 according to the present embodiment, and each transport is performed. A plurality of guide plates G that guide the transport direction of the transported paper P are provided in the paths 14. M4 indicates a main transport motor that rotates the transport rollers R in each transport path 14. S6 indicates a jam sensor provided in the lower part 4d of the discharge transport path 4.

よって、このような本実施形態に係る用紙折畳み装置1によれば、用紙搬入口2iから搬入される用紙Pを折り畳む用紙折畳み機構部3及びこの用紙折畳み機構部3から送出される折畳み後の用紙Pを用紙搬出口2eまで搬送する排出搬送路4を備えるとともに、折畳み後における搬送方向の長さが長いグループに属する折り形式の用紙Pを、排出搬送路4に排出する外部排紙機構部5eと、折畳み後における搬送方向の長さが短いグループに属する折り形式の用紙Pを、折り処理部7における複数の用紙送出位置Xa,Xbに対応して配設した複数の用紙スタッカ8as,8bsに排出する内部排紙機構部5iとを備えるため、折畳み後における搬送方向の長さが異なる様々な折り形式の用紙P…であっても、各用紙P…を円滑かつ最適な状態で搬送し、かつ排紙することができる。   Therefore, according to the paper folding apparatus 1 according to the present embodiment, the paper folding mechanism unit 3 that folds the paper P that is carried in from the paper carry-in port 2i and the folded paper that is sent out from the paper folding mechanism unit 3 are used. An external paper discharge mechanism 5e that includes the discharge conveyance path 4 that conveys P to the paper carry-out port 2e, and that discharges the folded-type paper P belonging to a group having a long length in the conveyance direction after folding to the discharge conveyance path 4. Then, the folded-type paper P belonging to the group having a short length in the transport direction after folding is placed on a plurality of paper stackers 8as and 8bs arranged corresponding to the plurality of paper sending positions Xa and Xb in the folding processing unit 7. Since the internal paper discharge mechanism 5i for discharging is provided, even when the paper P is of various folding types having different lengths in the transport direction after folding, each paper P is smoothly and optimally Transported by state, and can be discharged.

また、折畳み後における搬送方向の長さが長いグループに属する折り形式の用紙P…は、外部排紙機構部5sにより排出搬送路4に排出するとともに、折畳み後における搬送方向の長さが短いグループに属する折り形式の用紙P…は、複数の用紙スタッカ8as,8bsに対して内部排紙機構部5iにより選択的に排出するため、排出搬送路4が長い距離になる場合であっても、搬送路に配設するローラ機構の配設数量を削減できるとともに、内部排紙機構部5iにおける搬送路に必要なローラ機構の配設数量も削減できる。したがって、搬送路全体の単純化が可能となり、部品点数の削減によるコストダウンを図ることができるとともに、加えて、各用紙スタッカ8as,8bsのサイズダウンを図ることができる。   Further, the folded-type sheets P belonging to a group having a long length in the conveyance direction after folding are discharged to the discharge conveyance path 4 by the external paper discharge mechanism 5s, and the group having a short length in the conveyance direction after folding. Since the internal paper discharge mechanism 5i selectively discharges the fold-type paper P ... belonging to the plurality of paper stackers 8as, 8bs, the paper is transported even when the discharge transport path 4 is a long distance. The number of roller mechanisms disposed on the path can be reduced, and the number of roller mechanisms necessary on the transport path in the internal paper discharge mechanism 5i can be reduced. Therefore, the entire conveyance path can be simplified, the cost can be reduced by reducing the number of parts, and the size of each paper stacker 8as, 8bs can be reduced.

さらに、本実施形態に係る用紙折畳み装置1では、用紙折畳み機構部3に、圧接した一対の前ローラ6p,6qを有する前折り処理部6と、後主ローラ7mの両側に圧接させた一対の後副ローラ7p,7qを有する後折り処理部7と、搬送された用紙Pを前折り処理部6に対してローラ配列方向Fmへ搬入する前搬送路11sを有する前搬入機構部11と、一対の前ローラ6pと6q間を通過した用紙Pを後折り処理部7のローラ配列方向Fnであって後折り処理部7の搬送方向左右両側に搬入可能な第一後搬送路12aと第二後搬送路12b,及び第一後搬送路12a又は第二後搬送路12bに対して用紙Pを選択的に搬入させる後搬送路切換フラッパ12cを有する後搬入機構部12とを設けたため、装置全体における折り処理部は、前折り処理部6と後折り処理部7の二つで足りるとともに、折り処理に要するローラも計五つで足りる。このため、部品点数の削減及び各処理部6,7を配設するための省スペース化が可能となり、装置全体の更なる小型化及びコストダウンを図ることができる。特に、この種の用紙折畳み装置では、ローラ径を小さくしたり搬送路の曲率を大きくするほど、装置全体を小型化できるが、反面、厚紙の折畳みに対しては不利になる。しかし、本発明に係る用紙折畳み装置1では、前折り処理部6と後折り処理部7の二つの折り処理部を用いるとともに、合理的なレイアウトを採用したため、従来の用紙折畳み装置(特許文献1)に対して、装置の小型化と厚紙の折畳み処理の双方を実現できるとともに、そのバランスの最適化を図ることができる。   Further, in the sheet folding device 1 according to the present embodiment, the sheet folding mechanism unit 3 is paired with the front folding processing unit 6 having a pair of front rollers 6p and 6q that are pressed against each other and the pair of rear main rollers 7m. A pair of rear folding processing unit 7 having rear sub-rollers 7p and 7q, a front carry-in mechanism unit 11 having a front carrying path 11s for carrying the conveyed paper P to the front folding processing unit 6 in the roller arrangement direction Fm, and a pair The first rear conveyance path 12a and the second rear conveyance path 12a are capable of carrying the paper P that has passed between the front rollers 6p and 6q to the left and right sides in the conveyance direction of the rear folding processing unit 7 in the roller arrangement direction Fn of the rear folding processing unit 7. Since the transport path 12b and the rear transport mechanism 12 having the rear transport path switching flapper 12c for selectively transporting the paper P to the first rear transport path 12a or the second rear transport path 12b are provided, Folding part is the front Ri together suffice two processor 6 and the rear folding section 7, suffice even one meter five rollers required for the folding process. For this reason, it is possible to reduce the number of parts and save space for disposing the processing units 6 and 7, and further downsizing and cost reduction of the entire apparatus can be achieved. In particular, in this type of paper folding device, the smaller the roller diameter or the larger the curvature of the conveyance path, the smaller the entire device can be made, but it is disadvantageous for folding thick paper. However, since the sheet folding device 1 according to the present invention uses two folding processing units, the front folding processing unit 6 and the rear folding processing unit 7, and adopts a rational layout, the conventional sheet folding device (Patent Document 1). ), It is possible to realize both the downsizing of the apparatus and the folding process of the cardboard, and the balance can be optimized.

一方、図3には、用紙折畳み装置1における制御系61の全体構成を示す。制御系61は、用紙折畳み装置1の全体の制御を司る制御部62を備える。制御部62は、CPU,メモリ等のハードウェアを有するとともに、特に、一連の折畳み処理、即ち、二つ折り,Z折り,外三つ折り,内三つ折り,四つ折り及び観音折りを含む各種折り形式に係わる折畳み処理を実行可能なシーケンスプログラム63(ソフトウェア)を有するコンピュータ機能を備える。制御部62のセンサ入力ポートには、前述した前折レジセンサS1,第一後折レジセンサS2,第二後折レジセンサS3,第一排出センサS4,第二排出センサS5及びジャムセンサS6を接続する。また、制御部62のドライブ出力ポートには、前述した前折モータM1,後折モータM2,後レジモータM3及び主搬送モータM4を接続するとともに、前折ソレノイドC1,後切換ソレノイドC2,第一後折ソレノイドC3,第二後折ソレノイドC4,第一方向切換ソレノイドC5,第二方向切換ソレノイドC6及び排出方向切換ソレノイドC7を接続する。他方、制御部62には、印刷装置90に備える印刷装置コントローラ65を接続することができる。印刷装置コントローラ65は、印刷装置90,用紙折畳み装置(第一用紙後処理装置)1及び第二用紙後処理装置91を含む全体の管理及び制御を行うコンピュータ機能を有するコントローラであり、操作部(設定部)66,表示部67及びメモリ68が付属する。これにより、オペレータは、表示部67に表示される操作画面(設定画面)に従い、操作部(設定部)66により各種折り形式を選択できるとともに、必要な操作及び設定を行うことができる。なお、メモリ68には必要な管理及び制御に必要なアプリケーションプログラムやデータベースが格納されている。   On the other hand, FIG. 3 shows the overall configuration of the control system 61 in the sheet folding apparatus 1. The control system 61 includes a control unit 62 that controls the entire sheet folding apparatus 1. The control unit 62 has hardware such as a CPU and a memory, and in particular, a series of folding processes, that is, various folding formats including bi-folding, Z-folding, outer tri-folding, inner tri-folding, quadruple folding, and kannon folding. A computer function having a sequence program 63 (software) capable of executing the folding process is provided. To the sensor input port of the control unit 62, the above-mentioned front folding registration sensor S1, first rear folding registration sensor S2, second rear folding registration sensor S3, first ejection sensor S4, second ejection sensor S5 and jam sensor S6 are connected. Further, the drive output port of the control unit 62 is connected to the front folding motor M1, the rear folding motor M2, the rear registration motor M3, and the main transport motor M4, and the front folding solenoid C1, the rear switching solenoid C2, and the first rear solenoid. The folding solenoid C3, the second rear folding solenoid C4, the first direction switching solenoid C5, the second direction switching solenoid C6 and the discharge direction switching solenoid C7 are connected. On the other hand, a printing device controller 65 provided in the printing device 90 can be connected to the control unit 62. The printing device controller 65 is a controller having a computer function for performing overall management and control including the printing device 90, the paper folding device (first paper post-processing device) 1, and the second paper post-processing device 91. A setting unit 66, a display unit 67, and a memory 68 are attached. Accordingly, the operator can select various folding formats by the operation unit (setting unit) 66 according to the operation screen (setting screen) displayed on the display unit 67, and can perform necessary operations and settings. The memory 68 stores application programs and databases necessary for necessary management and control.

次に、本実施形態に係る用紙折畳み装置1の動作を含む用紙Pの具体的な折り手順について、図1〜図9を参照して説明する。   Next, a specific folding procedure of the paper P including the operation of the paper folding device 1 according to the present embodiment will be described with reference to FIGS.

用紙折畳み装置1は、用紙Pに対して折畳みを行わない通常モードと用紙Pに対して折畳みを行う折畳みモードを選択できる。通常モードを選択した場合には、図1に示す切換フラッパ83が切換えられ、搬入路82iの下流端に対して通過搬送路82pの上流端が接続される。これにより、印刷装置90で印刷された用紙Pは、用紙搬入口2iから搬入路82iに搬入されるとともに、搬入路82i,通過搬送路82p及び搬出路82eを搬送され、用紙搬出口2eから外部に排出される。排出された用紙Pは、不図示のストッカにストックされたり或いは必要により第二用紙後処理装置91に供給され、例えば、製本装置による製本処理等が行われる。これに対して、折畳みモードを選択した場合には、切換フラッパ83が切換えられ、搬入路82iの下流端に対して前搬送路11sの上流端が接続される。これにより、用紙搬入口2iから搬入路82iに搬入された用紙Pは、前搬送路11sにより搬送され、用紙折畳み機構部3に供給される。そして、用紙折畳み機構部3により用紙Pに対する折畳み処理が行われる。   The sheet folding apparatus 1 can select a normal mode in which the sheet P is not folded and a folding mode in which the sheet P is folded. When the normal mode is selected, the switching flapper 83 shown in FIG. 1 is switched, and the upstream end of the passing conveyance path 82p is connected to the downstream end of the carry-in path 82i. As a result, the paper P printed by the printing apparatus 90 is carried into the carry-in path 82i from the paper carry-in entrance 2i, and is carried through the carry-in path 82i, the passing carrying path 82p, and the carry-out path 82e. To be discharged. The discharged paper P is stocked in a stocker (not shown) or supplied to the second paper post-processing device 91 as necessary, for example, bookbinding processing by a bookbinding device. On the other hand, when the folding mode is selected, the switching flapper 83 is switched, and the upstream end of the front transport path 11s is connected to the downstream end of the carry-in path 82i. As a result, the paper P carried into the carry-in path 82i from the paper carry-in entrance 2i is transported by the front transport path 11s and supplied to the paper folding mechanism unit 3. Then, folding processing for the paper P is performed by the paper folding mechanism unit 3.

以下、用紙折畳み機構部3による折畳み処理について具体的に説明する。なお、図4〜図9において、点線矢印Dpは用紙Pの搬送経路を示す。   Hereinafter, the folding process performed by the sheet folding mechanism unit 3 will be described in detail. 4 to 9, a dotted arrow Dp indicates the conveyance path of the paper P.

図4は、「二つ折り」時の動作説明図を示す。前搬送路11sにより用紙Pが搬入されれば、前折レジセンサS1により用紙Pの先端が検出される。これにより、レジローラ機構21(前折モータM1)の回転は設定時間T1の経過後に停止する。次いで、前折ソレノイドC1(図3)が駆動制御され、リリース位置にある前折ガイド17は、仮想線の押込位置(17p)まで移動する。これにより、用紙Pの中央位置(所定位置K1)が前ローラ6pと6q間に進入可能となる。この後、前折モータM1が駆動制御され、前折り処理部6を構成する前ローラ6p,6qが回転することにより、用紙Pの所定位置K1が前ローラ6pと6q間に引込まれ、用紙Pは二つ折りされる。したがって、設定時間T1は、用紙Pの所定位置K1が折畳まれるように設定される。また、後切換ソレノイドC2(図3)が駆動制御され、後搬送路切換フラッパ12cは図4の実線で示す切換位置(12c)に切換えられる。これにより、第一搬送路12aが選択され、前ローラ6pと6q間から搬出された用紙P、即ち、「二つ折り」された用紙Pは、第一搬送路12aを含む主搬送路14及び排出搬送路4を搬送され、用紙搬出口2eから外部に排出される。   FIG. 4 shows an operation explanatory diagram at the time of “folding in two”. When the paper P is carried in by the front conveyance path 11s, the leading edge of the paper P is detected by the front folding registration sensor S1. As a result, the rotation of the registration roller mechanism 21 (pre-folding motor M1) stops after the set time T1 has elapsed. Next, the front folding solenoid C1 (FIG. 3) is driven and controlled, and the front folding guide 17 at the release position moves to the imaginary line pushing position (17p). Thereby, the center position (predetermined position K1) of the paper P can enter between the front rollers 6p and 6q. Thereafter, the front folding motor M1 is driven and controlled, and the front rollers 6p and 6q constituting the front folding processing unit 6 rotate, whereby the predetermined position K1 of the paper P is drawn between the front rollers 6p and 6q. Is folded in half. Accordingly, the set time T1 is set so that the predetermined position K1 of the paper P is folded. Further, the rear switching solenoid C2 (FIG. 3) is driven and controlled, and the rear transport path switching flapper 12c is switched to the switching position (12c) indicated by the solid line in FIG. As a result, the first transport path 12a is selected, and the sheet P carried out between the front rollers 6p and 6q, that is, the “folded” sheet P, is discharged into the main transport path 14 including the first transport path 12a and the discharge. The paper is transported through the transport path 4 and discharged to the outside from the paper transport outlet 2e.

図5は、「Z折り」時の動作説明図を示す。前搬送路11sにより用紙Pが搬入されれば、前折レジセンサS1により用紙Pの先端が検出され、これにより、レジローラ機構21の回転は設定時間T2の経過後に停止する。次いで、前折ガイド17は、仮想線の押込位置(17p)まで移動する。これにより、用紙Pの前側1/4の位置(所定位置K2)が前ローラ6pと6q間に進入可能となる。この後、前ローラ6p,6qの回転により、用紙Pの所定位置K2が前ローラ6pと6q間に引込まれ、用紙Pは所定位置K2で折畳まれる。したがって、設定時間T2は用紙Pの所定位置K2が折畳まれるように設定される。また、後搬送路切換フラッパ12cは、図5の仮想線で示す切換位置(12ce)に切換えられ、第二搬送路12bが選択される。これにより、前ローラ6pと6q間から搬出された(所定位置K2で折畳まれた)用紙Pは、前折り処理部6と後搬送路切換フラッパ12ce間における主搬送路14を搬送された後、第二搬送路12bに搬入される。   FIG. 5 shows an operation explanatory diagram at the time of “Z-folding”. If the paper P is carried in by the front conveyance path 11s, the leading edge of the paper P is detected by the front folding registration sensor S1, and thereby the rotation of the registration roller mechanism 21 is stopped after the set time T2. Next, the forward folding guide 17 moves to the virtual line pushing position (17p). As a result, the front 1/4 position (predetermined position K2) of the paper P can enter between the front rollers 6p and 6q. Thereafter, the predetermined position K2 of the paper P is drawn between the front rollers 6p and 6q by the rotation of the front rollers 6p and 6q, and the paper P is folded at the predetermined position K2. Accordingly, the set time T2 is set so that the predetermined position K2 of the paper P is folded. Further, the rear transport path switching flapper 12c is switched to the switching position (12ce) indicated by the phantom line in FIG. 5, and the second transport path 12b is selected. Thus, after the paper P carried out from between the front rollers 6p and 6q (folded at the predetermined position K2) is transported on the main transport path 14 between the front folding processing unit 6 and the rear transport path switching flapper 12ce. Then, it is carried into the second transport path 12b.

そして、第二搬送路12bにより用紙Pが搬送されれば、第二後折レジセンサS3により用紙Pの先端が検出される。なお、この場合、第一方向切換フラッパ13xは、第一方向切換ソレノイドC5(図3)により仮想線で示す切換位置(13xe)に切換えられる。この後、用紙Pは、レジローラ機構23に進入するが、第二後折レジセンサS3による検出後は、設定時間T3の経過後にレジローラ機構23(後レジモータM3)の回転が停止する。次いで、第二後折ソレノイドC4(図3)が駆動制御され、リリース位置にある第二後折ガイド19は、仮想線の押込位置(19p)まで移動する。これにより、所定位置K2で折畳まれた用紙Pにおける前側1/3の位置(所定位置K3)が後主ローラ7mと後副ローラ7q間に進入可能となる。この後、後折モータM2が駆動制御され、後主ローラ7mが回転することにより、用紙Pの所定位置K3が後主ローラ7mと後副ローラ7q間に引込まれる。これにより、用紙Pは所定位置K3で折畳まれる。したがって、設定時間T3は用紙Pの所定位置K3が折畳まれるように設定される。また、排出方向切換フラップ35は、排出方向切換ソレノイドC7により図5の実線で示す切換位置(35)に切換えられる。これにより、後主ローラ7mと後副ローラ7q間から搬出された用紙P、即ち、所定位置K2とK3で「Z折り」された用紙Pは、合流搬送路36を介して排出搬送路4に搬入される。そして、排出搬送路4を搬送されることにより用紙搬出口2eから外部に排出される。   When the paper P is transported through the second transport path 12b, the leading end of the paper P is detected by the second rear folding registration sensor S3. In this case, the first direction switching flapper 13x is switched to the switching position (13xe) indicated by the phantom line by the first direction switching solenoid C5 (FIG. 3). Thereafter, the sheet P enters the registration roller mechanism 23. After detection by the second reverse folding registration sensor S3, the rotation of the registration roller mechanism 23 (rear registration motor M3) stops after the set time T3 has elapsed. Next, the second rear folding solenoid C4 (FIG. 3) is driven and controlled, and the second rear folding guide 19 in the release position moves to the imaginary line pushing position (19p). As a result, the position of the front side 1/3 (predetermined position K3) in the paper P folded at the predetermined position K2 can enter between the rear main roller 7m and the rear sub-roller 7q. Thereafter, the rear folding motor M2 is driven and controlled, and the rear main roller 7m rotates, whereby the predetermined position K3 of the paper P is drawn between the rear main roller 7m and the rear auxiliary roller 7q. Thereby, the paper P is folded at the predetermined position K3. Therefore, the set time T3 is set so that the predetermined position K3 of the paper P is folded. Further, the discharge direction switching flap 35 is switched to the switching position (35) indicated by the solid line in FIG. 5 by the discharge direction switching solenoid C7. As a result, the paper P carried out between the rear main roller 7m and the rear sub-roller 7q, that is, the paper P that has been "Z-folded" at the predetermined positions K2 and K3, is transferred to the discharge conveyance path 4 via the merge conveyance path 36. It is brought in. Then, it is discharged to the outside from the paper carry-out port 2e by being conveyed through the discharge conveyance path 4.

このように、「二つ折り」及び「Z折り」された用紙Pは、折畳み前の用紙Pの長さの略1/2となるため、搬送路における一対のローラR…同士間の間隔が長く設定されても円滑に搬送されるとともに、特に、「Z折り」された用紙P…の場合、複数の用紙P…を重ねて製本することも多いため、排出搬送路4により搬送し、用紙搬出口2eから外部に排出させることができる。   As described above, since the sheet P that has been “folded” and “Z-folded” is approximately ½ of the length of the sheet P before folding, the distance between the pair of rollers R in the transport path is long. Even if the sheet is set, the sheet P is smoothly conveyed. In particular, in the case of the “Z-folded” sheet P..., A plurality of sheets P. It can be discharged to the outside from the outlet 2e.

図6は、「外三つ折り」時の動作説明図を示す。前搬送路11sにより用紙Pが搬入されれば、前折レジセンサS1により用紙Pの先端が検出され、これにより、レジローラ機構21の回転は設定時間T4の経過後に停止する。次いで、前折ガイド17は、仮想線の押込位置(17p)まで移動する。これにより、用紙Pの前側略1/3の位置(所定位置K4)が前ローラ6pと6q間に進入可能となる。この後、前ローラ6p,6qの回転により、用紙Pの所定位置K4が前ローラ6pと6q間に引込まれ、用紙Pは所定位置K4で折畳まれる。したがって、設定時間T4は用紙Pの所定位置K4が折畳まれるように設定される。また、後搬送路切換フラッパ12cは、図6の仮想線で示す切換位置(12ce)に切換えられ、前ローラ6pと6q間から搬出された用紙P、即ち、所定位置K4で折畳まれた用紙Pは、前折り処理部6と後搬送路切換フラッパ12ce間における主搬送路14を搬送された後、第二搬送路12bに搬入される。   FIG. 6 is an operation explanatory diagram at the time of “outer tri-fold”. If the paper P is carried in by the front conveyance path 11s, the leading edge of the paper P is detected by the front folding registration sensor S1, and thereby the rotation of the registration roller mechanism 21 is stopped after the set time T4 has elapsed. Next, the forward folding guide 17 moves to the virtual line pushing position (17p). As a result, approximately 1/3 of the front side of the paper P (predetermined position K4) can enter between the front rollers 6p and 6q. Thereafter, the predetermined position K4 of the paper P is drawn between the front rollers 6p and 6q by the rotation of the front rollers 6p and 6q, and the paper P is folded at the predetermined position K4. Therefore, the set time T4 is set so that the predetermined position K4 of the paper P is folded. Further, the rear transport path switching flapper 12c is switched to the switching position (12ce) indicated by the phantom line in FIG. 6, and the paper P carried out between the front rollers 6p and 6q, that is, the paper folded at the predetermined position K4. P is conveyed through the main conveyance path 14 between the front folding processing unit 6 and the rear conveyance path switching flapper 12ce and then carried into the second conveyance path 12b.

そして、第二搬送路12bにより用紙Pが搬送されれば、第二後折レジセンサS3により用紙Pの先端が検出される。この後、用紙Pは、レジローラ機構23に進入するが、第二後折レジセンサS3による検出後は、設定時間T5の経過後にレジローラ機構23(後レジモータM3)の回転は停止する。次いで、第二後折ソレノイドC4(図3)が駆動制御され、リリース位置にある第二後折ガイド19は仮想線の押込位置(19p)まで移動する。これにより、所定位置K4で折畳まれた用紙Pにおける前側略1/2の位置(所定位置K5)が後主ローラ7mと後副ローラ7q間に進入可能となる。この後、後折モータM2が駆動制御され、後主ローラ7mが回転することにより、用紙Pの所定位置K5が後主ローラ7mと後副ローラ7q間に引込まれる。これにより、用紙Pは所定位置K4の折畳み方向に対して反対の方向に折畳まれる。したがって、設定時間T5は用紙Pの所定位置K5で折畳まれるように設定される。一方、排出方向切換フラップ35は、図6の仮想線で示す切換位置(35e)に切換えられる。これにより、後主ローラ7mと後副ローラ7q間から搬出された用紙P、即ち、所定位置K4とK5により「外三つ折り」された用紙Pは、第二排紙系8ibを介して第二用紙スタッカ8bsに排出される。   When the paper P is transported through the second transport path 12b, the leading end of the paper P is detected by the second rear folding registration sensor S3. Thereafter, the paper P enters the registration roller mechanism 23. After detection by the second reverse folding registration sensor S3, the rotation of the registration roller mechanism 23 (rear registration motor M3) stops after the set time T5 has elapsed. Next, the second rear folding solenoid C4 (FIG. 3) is driven and controlled, and the second rear folding guide 19 in the release position moves to the imaginary line pushing position (19p). As a result, a position approximately half of the front side (predetermined position K5) in the paper P folded at the predetermined position K4 can enter between the rear main roller 7m and the rear sub-roller 7q. Thereafter, the rear folding motor M2 is driven and controlled, and the rear main roller 7m rotates, whereby the predetermined position K5 of the paper P is drawn between the rear main roller 7m and the rear auxiliary roller 7q. Thereby, the paper P is folded in a direction opposite to the folding direction of the predetermined position K4. Therefore, the set time T5 is set so as to be folded at the predetermined position K5 of the paper P. On the other hand, the discharge direction switching flap 35 is switched to a switching position (35e) indicated by a virtual line in FIG. As a result, the paper P carried out between the rear main roller 7m and the rear sub-roller 7q, that is, the paper P that has been "folded outwardly" by the predetermined positions K4 and K5, is transferred to the second through the second paper discharge system 8ib. The paper is discharged to the paper stacker 8bs.

図7は、「内三つ折り」時の動作説明図を示す。前搬送路11sにより用紙Pが搬入されれば、前折レジセンサS1により用紙Pの先端が検出され、レジローラ機構21の回転は設定時間T6の経過後に停止する。次いで、前折ガイド17は、仮想線の押込位置(17p)まで移動する。これにより、用紙Pの前側略1/3の位置(所定位置K6)が前ローラ6pと6q間に進入可能となる。この後、前ローラ6p,6qの回転により、用紙Pの所定位置K6が前ローラ6pと6q間に引込まれ、用紙Pは所定位置K6で折畳まれる。したがって、設定時間T6は用紙Pの所定位置K6が折畳まれるように設定される。また、後搬送路切換フラッパ12cは、図7の実線で示す切換位置(12c)に切換えられ、前ローラ6pと6q間から搬出された用紙P、即ち、所定位置K6で折畳まれた用紙Pは、前折り処理部6と後搬送路切換フラッパ12c間における主搬送路14を搬送された後、第一搬送路12aに搬入される。そして、第一搬送路12aにより用紙Pが搬送されれば、第一後折レジセンサS2により用紙Pの先端が検出される。この後、用紙Pは、レジローラ機構22に進入するが、第一後折レジセンサS2により検出された後は、設定時間T7の経過後にレジローラ機構22(後折モータM2)の回転は停止する。次いで、第一後折ソレノイドC3(図3)が駆動制御され、リリース位置にある第一後折ガイド18は、仮想線の押込位置(18p)まで移動する。これにより、所定位置K6で折畳まれた用紙Pにおける前側略1/2の位置(所定位置K7)が後主ローラ7mと後副ローラ7q間に進入可能となる。この後、後折モータM2が駆動制御され、後主ローラ7mが回転することにより、用紙Pの所定位置K7が後主ローラ7mと後副ローラ7q間に引込まれる。ことにより、用紙Pは所定位置K6の折畳み方向に対して同じ方向に折畳まれる。したがって、設定時間T7は用紙Pの所定位置K7が折畳まれるように設定される。また、第二方向切換フラッパ13yは、第二方向切換ソレノイドC6(図3)により実線の切換位置(13y)に切換えられる。これにより、後主ローラ7mと後副ローラ7p間から搬出された用紙P、即ち、所定位置K6とK7により「内三つ折り」された用紙Pは、第一排紙系8iaを介して第一用紙スタッカ8asに排出される。   FIG. 7 is a diagram for explaining the operation at the time of “inner fold”. If the paper P is carried in by the front conveyance path 11s, the leading edge of the paper P is detected by the front folding registration sensor S1, and the rotation of the registration roller mechanism 21 stops after the set time T6 has elapsed. Next, the forward folding guide 17 moves to the virtual line pushing position (17p). As a result, the front side approximately 1/3 position (predetermined position K6) of the paper P can enter between the front rollers 6p and 6q. Thereafter, the predetermined position K6 of the paper P is drawn between the front rollers 6p and 6q by the rotation of the front rollers 6p and 6q, and the paper P is folded at the predetermined position K6. Accordingly, the set time T6 is set so that the predetermined position K6 of the paper P is folded. Further, the rear transport path switching flapper 12c is switched to the switching position (12c) indicated by the solid line in FIG. 7, and the paper P carried out between the front rollers 6p and 6q, that is, the paper P folded at the predetermined position K6. Is conveyed through the main conveyance path 14 between the front folding processing unit 6 and the rear conveyance path switching flapper 12c and then carried into the first conveyance path 12a. When the paper P is transported by the first transport path 12a, the leading end of the paper P is detected by the first rear folding registration sensor S2. Thereafter, the sheet P enters the registration roller mechanism 22, but after being detected by the first rear folding registration sensor S2, the rotation of the registration roller mechanism 22 (rear folding motor M2) stops after the set time T7 has elapsed. Next, the first rear folding solenoid C3 (FIG. 3) is driven and controlled, and the first rear folding guide 18 in the release position moves to the imaginary line pushing position (18p). As a result, a position approximately half of the front side (predetermined position K7) in the paper P folded at the predetermined position K6 can enter between the rear main roller 7m and the rear sub-roller 7q. Thereafter, the rear folding motor M2 is driven and controlled, and the rear main roller 7m rotates, whereby the predetermined position K7 of the paper P is drawn between the rear main roller 7m and the rear auxiliary roller 7q. As a result, the paper P is folded in the same direction with respect to the folding direction of the predetermined position K6. Accordingly, the set time T7 is set so that the predetermined position K7 of the paper P is folded. The second direction switching flapper 13y is switched to the solid line switching position (13y) by the second direction switching solenoid C6 (FIG. 3). As a result, the paper P carried out between the rear main roller 7m and the rear sub-roller 7p, that is, the paper P that has been “tri-folded inward” by the predetermined positions K6 and K7, is transferred to the first through the first paper discharge system 8ia. The paper is discharged to the paper stacker 8as.

図8は、「四つ折り」時の動作説明図を示す。用紙Pが所定位置K1で二つ折りされる点は、図4に示した「二つ折り」時の動作と同じになる。一方、用紙Pは、前折り処理部6と後搬送路切換フラッパ12c間における主搬送路14を搬送された後、第一搬送路12aに搬入される。そして、第一搬送路12aを用紙Pが搬送されれば、第一後折レジセンサS2により用紙Pの先端が検出される。この後、用紙Pは、レジローラ機構22に進入するが、第一後折レジセンサS2による検出後は、設定時間T8の経過後にレジローラ機構22の回転は停止する。次いで、第一後折ガイド18は、仮想線の押込位置(18p)まで移動する。これにより、所定位置K1で折畳まれた用紙Pにおける前側1/2の位置(所定位置K8)が後主ローラ7mと後副ローラ7q間に進入可能となる。この後、後折モータM2が駆動制御され、後主ローラ7mが回転することにより、用紙Pの所定位置K8が後主ローラ7mと後副ローラ7q間に引込まれる。これにより、用紙Pは所定位置K8で更に二つ折りされる。したがって、設定時間T8は、所定位置K8で折畳まれるように設定される。また、第二方向切換フラッパ13yは、第二方向切換ソレノイドC6(図3)により実線の切換位置(13y)に切換えられる。これにより、後主ローラ7mと後副ローラ7p間から搬出された用紙P、即ち、所定位置K1とK8により「四つ折り」された用紙Pは、第一排紙系8iaを介して第一用紙スタッカ8asに排出される。   FIG. 8 is an operation explanatory diagram at the time of “four-folding”. The point that the sheet P is folded in two at the predetermined position K1 is the same as the operation in “folding in two” shown in FIG. On the other hand, the sheet P is conveyed through the main conveyance path 14 between the front folding processing unit 6 and the rear conveyance path switching flapper 12c, and then carried into the first conveyance path 12a. When the paper P is transported through the first transport path 12a, the leading end of the paper P is detected by the first rear folding registration sensor S2. Thereafter, the sheet P enters the registration roller mechanism 22, but after the detection by the first folding register sensor S2, the rotation of the registration roller mechanism 22 stops after the set time T8 has elapsed. Next, the first rear folding guide 18 moves to the virtual line pushing position (18p). As a result, the front half position (predetermined position K8) of the sheet P folded at the predetermined position K1 can enter between the rear main roller 7m and the rear sub-roller 7q. Thereafter, the rear folding motor M2 is driven and controlled, and the rear main roller 7m rotates, whereby the predetermined position K8 of the paper P is drawn between the rear main roller 7m and the rear auxiliary roller 7q. Thereby, the paper P is further folded in two at the predetermined position K8. Therefore, the set time T8 is set to be folded at the predetermined position K8. The second direction switching flapper 13y is switched to the solid line switching position (13y) by the second direction switching solenoid C6 (FIG. 3). As a result, the paper P carried out between the rear main roller 7m and the rear sub-roller 7p, that is, the paper P that has been “folded in four” at the predetermined positions K1 and K8, is transferred to the first paper via the first paper discharge system 8ia. It is discharged to the stacker 8as.

図9は、「観音折り」時の動作説明図を示す。前搬送路11sにより用紙Pが搬入されれば、前折レジセンサS1により用紙Pの先端が検出され、レジローラ機構21の回転は設定時間T9の経過後に停止する。次いで、前折ガイド17は、仮想線の押込位置(17p)まで移動する。これにより、用紙Pの前側略1/4の位置(所定位置K9)が前ローラ6pと6q間に進入可能となる。この後、前ローラ6p,6qの回転により、用紙Pの所定位置K9が前ローラ6pと6q間に引込まれ、用紙Pは所定位置K9で折畳まれる。したがって、設定時間T9は用紙Pの所定位置K9が折畳まれるように設定される。また、後搬送路切換フラッパ12cは、図9の実線で示す切換位置(12c)に切換えられ、前ローラ6pと6q間から搬出された用紙P、即ち、所定位置K9で折畳まれた用紙Pは、前折り処理部6と後搬送路切換フラッパ12c間における主搬送路14を搬送された後、第一搬送路12aに搬入される。そして、第一搬送路12aにより用紙Pが搬送されれば、第一後折レジセンサS2により用紙Pの先端が検出される。この後、用紙Pは、レジローラ機構22に進入するが、第一後折レジセンサS2による検出後は、設定時間T10の経過後にレジローラ機構22の回転は停止する。次いで、第一後折ガイド18は、仮想線の押込位置(18p)まで移動する。これにより、所定位置K9で折畳まれた用紙Pにおける後側略1/3の位置(所定位置K10)が後主ローラ7mと後副ローラ7q間に進入可能となる。この後、後折モータM2が駆動制御され、後主ローラ7mが回転することにより、用紙Pの所定位置K10が後主ローラ7mと後副ローラ7q間に引込まれる。これにより、用紙Pは所定位置K9の折畳み方向に対して同じ方向に折畳まれる。したがって、設定時間T10は用紙Pの所定位置K10が折畳まれるように設定される。   FIG. 9 is a diagram for explaining the operation at the time of “Kannon folding”. If the paper P is carried in by the front conveyance path 11s, the leading edge of the paper P is detected by the front folding registration sensor S1, and the rotation of the registration roller mechanism 21 stops after the set time T9 has elapsed. Next, the forward folding guide 17 moves to the virtual line pushing position (17p). As a result, the front side approximately 1/4 position (predetermined position K9) of the sheet P can enter between the front rollers 6p and 6q. Thereafter, the predetermined position K9 of the paper P is drawn between the front rollers 6p and 6q by the rotation of the front rollers 6p and 6q, and the paper P is folded at the predetermined position K9. Accordingly, the set time T9 is set so that the predetermined position K9 of the paper P is folded. Further, the rear transport path switching flapper 12c is switched to the switching position (12c) indicated by the solid line in FIG. 9, and the paper P carried out between the front rollers 6p and 6q, that is, the paper P folded at the predetermined position K9. Is conveyed through the main conveyance path 14 between the front folding processing unit 6 and the rear conveyance path switching flapper 12c and then carried into the first conveyance path 12a. When the paper P is transported by the first transport path 12a, the leading end of the paper P is detected by the first rear folding registration sensor S2. Thereafter, the paper P enters the registration roller mechanism 22, but after the detection by the first reverse folding registration sensor S2, the rotation of the registration roller mechanism 22 stops after the set time T10 has elapsed. Next, the first rear folding guide 18 moves to the virtual line pushing position (18p). As a result, the rear side approximately 1/3 position (predetermined position K10) of the paper P folded at the predetermined position K9 can enter between the rear main roller 7m and the rear sub-roller 7q. Thereafter, the rear folding motor M2 is driven and controlled, and the rear main roller 7m rotates, whereby the predetermined position K10 of the paper P is drawn between the rear main roller 7m and the rear auxiliary roller 7q. As a result, the paper P is folded in the same direction with respect to the folding direction of the predetermined position K9. Accordingly, the set time T10 is set so that the predetermined position K10 of the paper P is folded.

また、第一方向切換フラッパ13xは、実線で示す切換位置(13x)に切換えられるとともに、第二方向切換フラッパ13yは、仮想線の切換位置(13ye)に切換えられる。これにより、後主ローラ7mと後副ローラ7p間から搬出された用紙P、即ち、所定位置K9とK10が折畳まれた用紙Pは、第二搬送路12bにより搬送される。そして、用紙Pが搬送されれば、第二後折レジセンサS3により用紙Pの先端が検出される。この後、用紙Pは、レジローラ機構23に進入するが、第二後折レジセンサS3による検出後は、設定時間T11の経過後にレジローラ機構23の回転は停止する。次いで、第二後折ガイド19が仮想線の押込位置(19p)まで移動する。これにより、所定位置K9とK10が折畳まれた用紙Pにおける前側1/2の位置(所定位置K11)が後主ローラ7mと後副ローラ7q間に進入可能となる。この後、後折モータM2が駆動制御され、後主ローラ7mが回転することにより、用紙Pの所定位置K11が後主ローラ7mと後副ローラ7q間に引込まれる。これにより、用紙Pは所定位置K9,K10の折畳み方向に対して同じ方向に折畳まれる。したがって、設定時間T11は用紙Pの所定位置K11で折畳まれるように設定される。一方、排出方向切換フラップ35は、図9の仮想線で示す切換位置(35e)に切換えられる。これにより、後主ローラ7mと後副ローラ7q間から搬出された用紙P、即ち、所定位置K9,K10,K11により観音折りされた用紙Pは、第二排紙系8ibを介して第二用紙スタッカ8bsに排出される。   The first direction switching flapper 13x is switched to a switching position (13x) indicated by a solid line, and the second direction switching flapper 13y is switched to a virtual line switching position (13ye). Thereby, the paper P carried out between the rear main roller 7m and the rear sub-roller 7p, that is, the paper P in which the predetermined positions K9 and K10 are folded, is transported by the second transport path 12b. When the paper P is conveyed, the leading end of the paper P is detected by the second rear folding registration sensor S3. Thereafter, the paper P enters the registration roller mechanism 23. After detection by the second folding registration sensor S3, the rotation of the registration roller mechanism 23 stops after the set time T11 has elapsed. Next, the second rear folding guide 19 moves to the virtual line pushing position (19p). As a result, the front half position (predetermined position K11) of the sheet P in which the predetermined positions K9 and K10 are folded can enter between the rear main roller 7m and the rear sub-roller 7q. Thereafter, the rear folding motor M2 is driven and controlled, and the rear main roller 7m rotates, whereby the predetermined position K11 of the paper P is drawn between the rear main roller 7m and the rear auxiliary roller 7q. Thereby, the paper P is folded in the same direction with respect to the folding directions of the predetermined positions K9 and K10. Accordingly, the set time T11 is set so as to be folded at the predetermined position K11 of the paper P. On the other hand, the discharge direction switching flap 35 is switched to the switching position (35e) indicated by the phantom line in FIG. As a result, the paper P carried out between the rear main roller 7m and the rear sub-roller 7q, that is, the paper P folded at the predetermined positions K9, K10, and K11 is second paper via the second paper discharge system 8ib. It is discharged to the stacker 8bs.

以上、好適実施形態について詳細に説明したが、本発明は、このような実施形態に限定されるものではなく、細部の構成,形状,素材,数量,数値等において、本発明の要旨を逸脱しない範囲で、任意に変更,追加,削除することができる。   As mentioned above, although preferred embodiment was described in detail, this invention is not limited to such embodiment, It does not deviate from the summary of this invention in a detailed structure, a shape, a raw material, quantity, a numerical value, etc. It can be changed, added, or deleted arbitrarily.

例えば、用紙Pは、厚紙を含む各種厚さの用紙を適用できるとともに、各種サイズの用紙Pに適用できる。なお、用紙Pは、必ずしも紙素材に限定されるものではなく、紙以外の素材を含む混合紙,紙素材を含まない合成樹脂素材や木質素材等を利用した用紙,紙素材の用紙と紙素材以外の素材による用紙を積層した複合紙等の各種用紙Pが含まれる。一方、所定位置K1〜K11は、例示した図面の位置に限定されるものではなく、同様の折り形式を実現できる範囲において任意の位置を選定できる。さらに、ローラ配列方向Fm,Fnは正確な方向を示すものではなく、ローラ間に用紙Pの所定位置K1…を押込み可能となる方向を全て含む概念である。他方、折り形式として、六種の折り形式を挙げたが、他の折り形式を適用してもよい。また、折畳み後における搬送方向の長さが長いグループに、二つ折り形式及びZ折り形式を属させ、折畳み後における搬送方向の長さが短いグループに、外三つ折り形式,内三つ折り形式,四つ折り形式及び観音折り形式を属させた場合を例示したがグループ分けは任意である。さらに、用紙スタッカ8as…として、二つの用紙スタッカ8as,8bsを用いる場合を例示したが、後折り処理部7の構成によっては三つ以上であっても同様に実施できる。   For example, the paper P can be applied to paper of various thicknesses including thick paper, and can be applied to paper P of various sizes. Note that the paper P is not necessarily limited to a paper material, and is a mixed paper containing materials other than paper, a paper using a synthetic resin material or a wood material not containing a paper material, a paper material paper and a paper material. Various types of paper P such as composite paper in which papers of materials other than those are laminated are included. On the other hand, the predetermined positions K <b> 1 to K <b> 11 are not limited to the illustrated positions in the drawings, and any position can be selected as long as a similar folding format can be realized. Furthermore, the roller arrangement directions Fm and Fn do not indicate accurate directions, but are concepts that include all directions in which the predetermined positions K1,... On the other hand, as the folding format, six types of folding formats are given, but other folding formats may be applied. In addition, a group having a long length in the conveyance direction after folding belongs to a two-fold type and a Z-fold type, and a group having a short length in the conveyance direction after folding is classified into an outer tri-fold type, an inner tri-fold type, and a four-fold type. Although the case where the fold type and the Kannon fold type are included is exemplified, the grouping is arbitrary. Furthermore, the case where two sheet stackers 8as and 8bs are used as the sheet stackers 8as is illustrated, but depending on the configuration of the post-folding processing unit 7, three or more sheets can be similarly implemented.

本発明に係る用紙折畳み装置は、書類や手紙等の各種用紙を折り畳む際に利用できる。また、用紙折畳み装置として単独で利用してもよいし、複写装置等を含む各種印刷装置や用紙を処理する各種用紙処理装置等のオプション装置として利用してもよい。   The paper folding apparatus according to the present invention can be used when folding various paper such as documents and letters. Further, it may be used alone as a paper folding device, or may be used as an optional device such as various printing devices including a copying device or various paper processing devices for processing paper.

1:用紙折畳み装置,2i:用紙搬入口,2e:用紙搬出口,3:用紙折畳み機構部,4:排出搬送路,5s:外部排紙機構部,5i:内部排紙機構部,6:前折り処理部,6p:前ローラ,6q:前ローラ,7:折り処理部(後折り処理部),7m:後主ローラ,7p:後副ローラ,7q:後副ローラ,8a:第一排紙系,8b:第二排紙系,8as:用紙スタッカ,8bs:用紙スタッカ,11:前搬入機構部,11s:前搬送路,12:後搬入機構部,12a:第一後搬送路,12b:第二後搬送路,12c:後搬送路切換フラッパ,13x:搬送方向切換フラッパ,13y:搬送方向切換フラッパ,14:主搬送路,15:排紙路,16:搬出切換機構部,P:用紙,Xa:用紙送出位置,Xb:用紙送出位置,Fm:ローラ配列方向,Fn:ローラ配列方向   1: paper folding device, 2i: paper carry-in port, 2e: paper carry-out port, 3: paper folding mechanism, 4: discharge conveyance path, 5s: external paper discharge mechanism, 5i: internal paper discharge mechanism, 6: front Folding processing section, 6p: front roller, 6q: front roller, 7: folding processing section (back folding processing section), 7m: rear main roller, 7p: rear subroller, 7q: rear subroller, 8a: first paper discharge System, 8b: second paper discharge system, 8as: paper stacker, 8bs: paper stacker, 11: front carry-in mechanism section, 11s: front transport path, 12: rear transport mechanism section, 12a: first rear transport path, 12b: Second rear transport path, 12c: rear transport path switching flapper, 13x: transport direction switching flapper, 13y: transport direction switching flapper, 14: main transport path, 15: paper discharge path, 16: carry-out switching mechanism, P: paper , Xa: paper delivery position, Xb: paper delivery position, Fm: roller arrangement , Fn: roller arrangement direction

Claims (8)

  1. 搬入された用紙を、圧接した一対のローラを有する複数の折り処理部を用いて折り畳む機能を備える用紙折畳み装置において、用紙搬入口から搬入される用紙を折り畳む用紙折畳み機構部及びこの用紙折畳み機構部から送出される折畳み後の用紙を用紙搬出口まで搬送する排出搬送路を備えるとともに、折畳み後における搬送方向の長さが長いグループに属する折り形式の用紙を、前記排出搬送路に排出する外部排紙機構部と、折畳み後における搬送方向の長さが短いグループに属する折り形式の用紙を、前記折り処理部における複数の用紙送出位置に対応して配設した複数の用紙スタッカに排出する内部排紙機構部とを備えてなることを特徴とする用紙折畳み装置。   In a paper folding apparatus having a function of folding a carried-in paper using a plurality of folding processing parts having a pair of pressure-contacting rollers, a paper folding mechanism part for folding a paper carried in from a paper carry-in port and the paper folding mechanism part A folded conveyance path that conveys the folded sheet fed from the sheet to the sheet carry-out port, and also includes an external discharge that discharges the folded sheet belonging to the group having a long length in the conveyance direction after folding to the discharge conveyance path. A paper mechanism unit and an internal discharge unit that discharges folded sheets belonging to a group having a short length in the conveyance direction after folding to a plurality of sheet stackers arranged corresponding to a plurality of sheet delivery positions in the folding processing unit. A paper folding device comprising a paper mechanism section.
  2. 前記用紙折畳み機構部は、圧接した一対の前ローラを有する前折り処理部と、後主ローラの両側に圧接させた一対の後副ローラを有する後折り処理部と、搬送された用紙を前記前折り処理部に対してローラ配列方向へ搬入する前搬送路を有する前搬入機構部と、前記一対の前ローラ間を通過した用紙を前記後折り処理部のローラ配列方向であって前記後折り処理部の搬送方向左右両側に搬入可能な第一後搬送路と第二後搬送路,及び前記第一後搬送路又は前記第二後搬送路に対して用紙を選択的に搬入させる後搬送路切換フラッパを有する後搬入機構部とを備えてなることを特徴とする請求項1記載の用紙折畳み装置。   The sheet folding mechanism includes a front folding processing section having a pair of pressure-contacting front rollers, a rear folding processing section having a pair of rear sub-rollers pressed against both sides of the rear main roller, and the transported paper in the front A front carry-in mechanism having a pre-conveying path for carrying in the roller arrangement direction with respect to the folding processing unit, and the paper that has passed between the pair of front rollers in the roller arrangement direction of the post-folding processing unit and the post-folding The first rear transport path and the second rear transport path that can be carried in both right and left sides of the transport direction of the section, and the rear transport path switching for selectively transporting the paper to the first rear transport path or the second rear transport path The sheet folding apparatus according to claim 1, further comprising a rear carry-in mechanism section having a flapper.
  3. 前記後折り処理部は、前記後主ローラと一方の前記後副ローラ間を通過した用紙を、前記後主ローラと他方の前記後副ローラのローラ配列方向へ搬入可能な搬送方向切換フラッパを備えることを特徴とする請求項2記載の用紙折畳み装置。   The rear folding processing section includes a conveyance direction switching flapper that can carry in the sheet passing between the rear main roller and one of the rear sub-rollers in the roller arrangement direction of the rear main roller and the other rear sub-roller. The sheet folding apparatus according to claim 2, wherein
  4. 上端が用紙の搬入側となり下端が用紙の搬出側となる半円状に湾曲させた主搬送路を備え、この主搬送路の上側に前記前折り処理部を配設し、かつ前記主搬送路の下側に前記後折り処理部を配設するとともに、前記主搬送路の中間位置に前記後搬送路切換フラッパを配設し、この後搬送路切換フラッパよりも搬送方向前方における前記主搬送路を、前記第一後搬送路として用いることを特徴とする請求項2又は3記載の用紙折畳み装置。   A main conveyance path that is curved in a semicircular shape with an upper end on the paper carry-in side and a lower end on the paper carry-out side, the pre-folding processing unit is disposed above the main conveyance path, and the main conveyance path The rear folding processing section is disposed on the lower side, and the rear transport path switching flapper is disposed at an intermediate position of the main transport path, and the main transport path ahead of the rear transport path switching flapper in the transport direction. The sheet folding device according to claim 2, wherein the sheet folding device is used as the first rear conveyance path.
  5. 前記折畳み後における搬送方向の長さが長いグループには、二つ折り形式及びZ折り形式が属するとともに、前記折畳み後における搬送方向の長さが短いグループには、外三つ折り形式,内三つ折り形式,四つ折り形式及び観音折り形式が属することを特徴とする請求項1記載の用紙折畳み装置。   The group having a long length in the conveyance direction after folding belongs to the two-fold type and the Z-fold type, and the group having a short length in the conveyance direction after the folding includes an outer tri-fold type and an inner tri-fold type. 2. The sheet folding apparatus according to claim 1, wherein a four-fold type and a kannon fold type belong.
  6. 前記内部排紙機構部は、内三つ折り形式及び四つ折り形式による折畳み後の用紙を一つの用紙スタッカ(第一用紙スタッカ)に排出する第一排紙系と、外三つ折り形式及び観音折り形式による折畳み後の用紙を他の用紙スタッカ(第二用紙スタッカ)に排出する第二排紙系とを備えることを特徴とする請求項1又は5記載の用紙折畳み装置。   The internal paper discharge mechanism includes a first paper discharge system that discharges the folded paper in an inner tri-fold format and a quad-fold format to a single paper stacker (first paper stacker), an outer tri-fold format, and a double-fold format. 6. A paper folding apparatus according to claim 1, further comprising a second paper discharge system for discharging the paper after folding by the second paper stacker (second paper stacker).
  7. 前記第一排紙系は、前記後主ローラ及び一方の前記後副ローラ間から送出された用紙が、前記第二後搬送路を横切るための当該第二後搬送路を分断して形成した排紙路を備えることを特徴とする請求項6記載の用紙折畳み装置。   The first paper discharge system is a discharge formed by dividing the second rear transport path for the paper fed from the rear main roller and one of the rear sub rollers to cross the second rear transport path. The paper folding apparatus according to claim 6, further comprising a paper path.
  8. 前記第二排紙系は、前記後主ローラと他方の前記後副ローラから送出される用紙を、前記排出搬送路又は前記第二用紙スタッカに対して選択的に搬出可能な搬出切換機構部を備えることを特徴とする請求項6記載の用紙折畳み装置。   The second paper discharge system includes a carry-out switching mechanism capable of selectively carrying out the paper fed from the rear main roller and the other rear sub-roller to the discharge conveyance path or the second paper stacker. The sheet folding apparatus according to claim 6, further comprising:
JP2010274760A 2010-12-09 2010-12-09 Paper folding device Pending JP2012121704A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106553934A (en) * 2015-09-24 2017-04-05 富士施乐株式会社 Plate materials processing device and image formation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106553934A (en) * 2015-09-24 2017-04-05 富士施乐株式会社 Plate materials processing device and image formation system
US10023424B2 (en) 2015-09-24 2018-07-17 Fuji Xerox Co., Ltd. Sheet processing apparatus and image forming system

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