JP2004098243A - Chad storing part and post-processing device provided with the same - Google Patents

Chad storing part and post-processing device provided with the same Download PDF

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JP2004098243A
JP2004098243A JP2002265464A JP2002265464A JP2004098243A JP 2004098243 A JP2004098243 A JP 2004098243A JP 2002265464 A JP2002265464 A JP 2002265464A JP 2002265464 A JP2002265464 A JP 2002265464A JP 2004098243 A JP2004098243 A JP 2004098243A
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sheet
perforation
perforated
paper
processing
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Japanese (ja)
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Manabu Miura
三浦 学
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Kyocera Document Solutions Inc
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Kyocera Mita Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a chad storing part for storing the chads, while destaticizing the chads generated by a punching processing, and sufficiently destaticizing the chads without scattering the chads when removing the storing part from a main body device (and after removing the storing part) and a post-processing device provided with the the chads storing part. <P>SOLUTION: A destaticizing means for removing static electricity of the boring dregs P1 is internally provided in the chad storing part 71 for storing the chads P1 generated by performing the punching processing for a prescribed position of paper. As one example of the destaticizing means, a means using a destaticizing brush internally provided in the vicinity of an opening part within the chad storing part is considered. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は,搬送される用紙に穿孔処理した際に生ずる穿孔カスを収容する穿孔カス収容部,及び該穿孔カス収容部を有し搬送される用紙に所定の処理(穿孔処理,ステイプル処理等)を施す後処理装置に関するものである。
【0002】
従来より,画像形成装置から排出される用紙を複数枚収容し,収容された用紙束に対して所定の後処理(例えば,穿孔処理,ステイプル処理,或いは中折処理)を施した後に,排出する後処理装置が知られている。
このような後処理装置のうち,穿孔処理を行うものには,穿孔処理により生ずる穿孔カスを収容する着脱可能な穿孔カス収容部が設けられることが一般的である。つまり,該穿孔カス収容部を,ある程度穿孔カスが溜まった段階で装置本体から取り外し,内部に収容された穿孔カスを廃却しつつ利用する。
ところで,前記後処理装置において処理される用紙は,複数のローラ或いはガイド部材により形成される所定の搬送経路に沿って搬送される構造上,その用紙は摩擦により帯電していることが多い。
そのため,このような帯電した用紙に対し穿孔処理を施した場合に生ずる穿孔カスも帯電しているため,その穿孔カスが前記穿孔カス収容部の開口部,或いは内壁等に静電吸着し,該穿孔カス収容部の詰まりを招くこと,或いは穿孔カスが内壁から剥がれず廃却が困難となる,といった問題があった。
そこで,上記問題を解決するものとしては,前記穿孔カス収容部の上流側に静電吸着力(静電気)を減少させる(除電する)機構を設けたものがある。(例えば,特許文献1参照)。
そのような機構を有する後処理装置の概略構成が,図6に示される。
同図に示す如く,不図示である画像形成装置により画像形成された用紙Pが,その画像形成装置に併設(連結)される当該後処理装置X1に対し搬送ローラro7により搬入される。
搬入された用紙Pは,該搬送ローラro7の下流に設けられる穿孔処理部70により所定位置に穿孔処理された後に,搬送ローラro1により更に搬送され,中間処理ユニット30に搬入(載置)される(用紙の流れを矢印Aで示す)。前記穿孔処理部70の下方には,穿孔処理により生じる穿孔カスP1を収容する穿孔カス収容部71が設けられる。該穿孔カス収容部71は,穿孔カスP1がある程度溜まった段階で前記後処理装置X1から取り外され,収容された穿孔カスP1の廃却が行われるため着脱自在に構成される。
一方,穿孔処理の施された用紙Pを収容する前記中間処理ユニット30では,搬送された用紙束に対し所定の処理(ステイプル処理,中折り処理その他)が施された後に,処理済みの用紙束を前記後処理装置X1の端部に設けた排出ローラro6により排出する。(用紙の流れを矢印Bで示す)
前記排出ローラro6の外側には,矢印Z方向に昇降することで該排出ローラro6に対向する用紙トレイを順次切り替え可能なジョブトレイ50が設けられる。ここで,該ジョブトレイ50は,ユーザにより選択された排紙モード(ソート処理/グループ処理)に応じて,前記排出ローラro6(即ち,用紙の排出部)に対向する用紙トレイを適宜切り替えるよう昇降し,前記排出ローラro6から排出される処理済みの用紙束をそれぞれの用紙トレイに分別することを可能とし,該後処理装置Xを使用するユーザの作業効率,或いは使用性を向上させる。ここで,当該後処理装置Xには,前期穿孔カス収容部71に収容される穿孔カスP1に帯電した静電吸着力を減少させる機構として,前記穿孔カス収容部71の上流側に設けられた除電ブラシ(図中にCで示す位置),前記穿孔カス収容部71に穿孔カスP1を案内する案内部71aに設けられた除電ブラシ(図中にDで示す位置),或いは前記穿孔カス収容部71に接触するよう設けられた除電ブラシ(図中にEで示す位置)が夫々設けられる。
これらの除電ブラシのうち,C位置の除電ブラシにより用紙Pに帯電した静電気を,D位置の除電ブラシにより穿孔カスP1に帯電した静電気を,E位置の除電ブラシにより前記穿孔カス収容部に収容された穿孔カスP1に帯電した静電気を放電することが可能となり,該穿孔カスP1が帯電していることより発生していた前記穿孔カス収容部71の開口部の詰まり,或いは内壁への吸着といった問題を解決することができる。
以上のように,前記後処理装置X1では,搬入される用紙に対して所定の処理(穿孔処理,ステイプル処理,)を施すことが可能であると同時に,穿孔処理により生ずる穿孔カスP1を前記穿孔カス収容部により効率良く回収することが可能である。
【0003】
【特許文献】
特開2000−159421号公報(第4−6頁,第1図)
【0004】
【発明が解決しようとする課題】
しかしながら,上述した後処理装置X1においては,複数の除電ブラシを設けているものの穿孔カスP1に対する除電が十分とは言えず,特に,穿孔カスP1が溜まった段階で前記穿孔カス収容部71を取り外す際,或いは取り外した後に,穿孔カスP1に残留していた静電気同士が反発することにより穿孔カスP1が該穿孔カス収容部71の開口部から飛散するという事態が散見された。
そこで,本発明は,かかる事情に鑑みてなされたものであり,その目的とするところは,穿孔処理により生じる穿孔カスを除電しつつ収容するものであって,本体装置から取り外す際(及び取り外した後)に穿孔カスが飛散することのないよう十分に除電できる穿孔カス収容部及び該穿孔カス収容部を具備する後処理装置を提供することにある。
【0005】
【課題を解決するための手段】
上記目的を達成するために,本発明は,用紙の所定位置に穿孔処理を施すことにより生ずる穿孔カスを収容する穿孔カス収容部において,前記穿孔カスの静電気を除去する除電手段が内設されてなることを特徴とする穿孔カス収容部として構成される。ここで,前記除電手段としては,前記穿孔カス収容部内の開口部近傍に内設される除電ブラシを用いたものが考えられる。
このような構成により,前記穿孔カス収容部に収容される穿孔カスに帯電している電荷を,該穿孔カス収容部に収容される間際で確実に除電するためことが可能となる。
更には,装置側に除電ブラシを設けていた従来構成と異なり,前記穿孔カス収容部内部に除電ブラシを設けることで,前記穿孔カス収容部を取り外す際(後)にも除電能力が継続して発揮されるため,前記穿孔カス収容部を取り外す際(後)に生じていた穿孔カスの飛散を確実に防止できる
また,前記穿孔カス収容部自体が,制電性材料により形成されたものであることが望ましい。
このような形態とすれば,収容される穿孔カスを除電する能力を更に向上させることが可能となり,穿孔カスが前記穿孔カス収容部より飛散することをより確実に防止できる。
【0006】
また,本発明は,搬送される用紙の所定位置に穿孔処理を施す穿孔処理部と,穿孔処理により生ずる穿孔カスを収容する穿孔カス収容部と,を具備する後処理装置に,前述した穿孔カス収容部を設けた後処理装置として捉えたものであってもよい。
【0007】
【発明の実施の形態】
以下添付図面を参照しながら,本発明の実施の形態及び実施例について説明し,本発明の理解に供する。尚,以下の実施の形態及び実施例は,本発明を具体化した一例であって,本発明の技術的範囲を限定する性格のものではない。
ここに,図1は本発明の実施の形態に係る後処理装置Xの概略断面図,図2は本発明の実施の形態に係る後処理装置Xを構成する中間処理ユニットの受け側ユニットの正面図,図3は本発明の実施の形態に係る後処理装置Xを構成する中間処理ユニットの断面図,図4は本発明の実施の形態に係る穿孔処理手段,及び穿孔カス収容部を模式的に表す要部拡大図,図5は本発明の実施の形態に係る穿孔カス収容部の斜視図,及び断面図,図6は従来公知の後処理装置X1を模式的に示す概略構成図である。
【0008】
本発明の実施の形態に係る後処理装置Xは,図1に示すような断面の全体構造を有し,図示の右側側面において画像形成装置Wと連結される。従って,本後処理装置Xの図1に向かって右側の側面には,画像形成装置Wから排出される画像形成された用紙を受け入れる用紙入口11が設けられている。また,前記用紙入口11に続けて設けられた用紙の搬送路r1の途中には,用紙に穿孔処理を施す穿孔処理手段70と,その穿孔処理により生ずる穿孔カスを収容する穿孔カス収容部71(両者の詳細は後述する)と,が設けられ,画像形成装置Wからの所定の制御指令に従って,用紙の所定位置に穴開け処理がなされる。
前記搬送路r1は,用紙を上向きに導く搬送路r2と下向きに導く搬送路r3とに分岐しており,いずれの搬送路に用紙を導くかは,揺動可能に設けられた可動ガイドg1により切り替えられるよう構成されている。
用紙を上向きに導く前記搬送路r2は,さらに,搬送中の用紙を大型の退避ドラム21の周面に沿う方向へ導いた後に下側へ向かう前記搬送路r3へ導く搬送路r22に繋がっている。
そして,前記搬送路r22へ搬送された用紙は,前記退避ドラム21の周面に沿った状態で一時退避した後,該退避ドラム21の回転によって前記搬送路r3へ送り出される。
また,下側へ向かう前記搬送路r3へ導かれた用紙は,前記可動ガイドg1の下方(本後処理装置の中央部)に設けられた中間処理ユニット30に導かれる。
【0009】
前記中間処理ユニット30は,斜めに傾けて設けられた中間トレイ31,該中間トレイ31の上下方向中央付近の所定位置に揺動可能に設けられた第1の用紙端部受け部32,前記中間トレイ31に沿って上下に移動可能に設けられた第2の用紙端部受け部33,前記中間トレイ31の上下方向中央付近に設けられ用紙にステイプル処理を施す第1及び第2のステイプル手段34,35とを具備している。前記第2の用紙端部受け部33は,無端ベルト37aに取付けられており,該無端ベルト37aの正転/逆転によって上下に移動するよう構成されている。
また,前記中間処理ユニット30は,図2,図3に示す如く,前記中間トレイ31や前記第1及び第2の用紙端部受け部32,33,前記第1及び第2のステイプル手段34,35等が設けられている受け側ユニット30aと,前記第1のステイプル手段34に対向する第1のステイプル受け部34’等が設けられているカバーユニット30bとに区分されており,前記カバーユニット30bが前記受け側ユニット30aに対して離接可能に構成されている。
図3は,前記カバーユニット30bが前記受け側ユニット30aに対して離間及び近接する状態を表す断面図である。図3に示すように,前記カバーユニット30bは前記受け側ユニット30aに回動可能に支持されており,該回動により前記カバーユニット30bが前記受け側ユニット30aに対して近接(図3の(a)の位置)又は離間(図3の(b)の位置)する位置に移動させることができるよう構成されている。また,前記中間処理ユニット30は,本後処理装置Xの本体から図1に向かって手前方向に引き出し可能に構成されており,前記中間処理ユニット30を引き出した後,前記カバーユニット30bを前記受け側ユニット30aから離間させることにより,前記中間処理ユニット30のジャム処理やメンテナンス作業等を容易に行うことができる。
図2は,前記中間処理ユニット30の前記受け側ユニット30aを前記用紙入口11側からみた正面図である。
前記第1のステイプル手段34は,用紙の幅方向(用紙の搬送方向(図2では上下方向)に直角の方向)に所定間隔で並べて対に配置されたものであり,用紙の端部付近の幅方向中央部へのステイプル処理,及び用紙の搬送方向中央部へのステイプル処理(いわゆる中綴じ)を行う場合に用いられる。また,前記第2のステイプル手段35は,用紙の幅方向の一方の端部付近に斜め方向に配置されたものであり,用紙のコーナー部へのステイプル処理を行う場合に用いられる。前記第1のステイプル受け部34’は,前記第1のステイプル手段34に対向する位置において前記カバーユニット30b(図3参照)に設けられている。
【0010】
図1に示す前記搬送路r3に導かれた用紙は,前記中間処理ユニット30の上方に設けられた搬送ローラro1により下側へ搬送され,前記搬送ローラro1から外れて落下する。この落下してくる用紙は,その一方の面(図1に向かって左側の面)が前記中間トレイ31により受けられ,その先端部(下側端部)が前記第1の用紙端部受け部32又は第2の用紙端部受け部33(用紙受け部の一例に該当)のいずれかにより受けられる。前記中間トレイ31上に複数重ねて収容(集積)された用紙(束)は,用紙付勢部材38(図4参照)等により構成される用紙整合機構(詳細は後述する)により整合された後,前記第1又は第2のステイプル手段34,35によってステイプル処理が施される。
前記第1及び第2の用紙端部受け部32,33のいずれによって用紙の先端部を受けるかは,前記第1の用紙端部受け部32の揺動動作によって切り替えられる。即ち,前記第1の用紙端部受け部32が前記中間トレイ31に沿う位置(近接する位置,以下,使用位置という)にある場合は,用紙の先端部は前記第1の用紙端部受け部32により受けられ,前記第1の用紙端部受け部32がその揺動動作により前記中間トレイ31から離間した退避位置にある場合は,前記搬送ローラro1により搬送されてきた用紙の先端部は前記第1の用紙端部受け部32を通り過ぎて前記第1の用紙端部受け部32よりも下方に移動して待っている前記第2の用紙端部受け部33により受けられるよう構成されている。また,小サイズの用紙を受ける場合は,前記第2の用紙端部受け部33を前記第1の用紙端部受け部32よりも上側へ移動させて用紙を受けることも可能である。この場合,前記第1の用紙端部受け部32は前記使用位置にあっても前記退避位置にあってもかまわない。
例えば,用紙の端部付近の所定位置にステイプル処理(いわゆる端部綴じ)を行いたい場合等は,前記第1の用紙端部受け部32に用紙を積載した状態で前記第1又は第2のステイプル手段34,35によりステイプル処理がなされる。また,用紙の搬送方向中央部付近にステイプル処理(いわゆる中綴じ)を行いたい場合等は,前記第2の用紙端部受け部33を用紙を積載した状態で用紙サイズに応じた位置に移動させ,前記第1のステイプル手段34によりステイプル処理がなされる。また,用紙のサイズによっては(前記第1の用紙端部受け部32で直接受けるべきサイズよりも大きい又は小さいサイズ),前記搬送ローラRo1により搬送されてくる用紙を,一旦,前記第2の用紙端部受け部33により受けて重積させた後,前記第1の用紙端部受け部33に積み替えることも行われる。この場合,まず,搬送されてくる用紙を,その用紙のサイズに応じた位置(前記第1の用紙端部受け部33の位置よりも下側又は上側)に移動させた前記第2の用紙端部受け部33により受け,用紙を積載した前記第2の用紙端部受け部33を前記第1の用紙端部受け部32よりも若干上側の位置(例えば,2mm程度上側)まで移動させた後(この間,前記第1の用紙端部受け部32は前記退避位置にある),前記第1の用紙端部受け部32を前記使用位置に揺動させ,さらに,前記第2の用紙端部受け部33を前記第1の用紙端部受け部32よりも下側に移動させることにより,前記第2の用紙端部受け部33に積載された用紙を前記第1の用紙端部受け部32に積み替える。ここで,前記第1の用紙端部受け部32は,本用紙処理装置Xにおいて多用されるサイズの用紙(例えば,A4Y/LTYサイズ)が搬送されてきたときにその用紙を直接受けるのに適した位置に配置されており,それよりも大きいサイズの用紙が搬送されてくる場合であって,その用紙を前記第1の用紙端部受け部32に積載した状態でステイプル処理を施したい場合(即ち,端部綴じを行いたい場合)には,前述した積み替えが行われる。これにより,多用されるサイズの用紙については,前記第1の用紙端部受け部32により用紙を直接受けることができるので,前記第2の用紙端部受け部33の移動による位置合わせを行う必要が無く,迅速なステイプル処理が行える。さらに,用紙端部付近の所定位置にステイプル処理(端部綴じ)を施す場合,ステイプル処理を行う位置に,中綴じよりも高い精度が要求され,前記第2の用紙端部受け部33の移動による位置合わせでは十分な位置決め精度を確保することが難しい場合があるが,このような場合でも,移動しない前記第1の用紙端部受け部32と移動しない前記第1及び第2のステイプル手段34,35との位置関係は予め精度高く設定することが可能であるので,十分な位置精度でステイプル処理を施すことが可能となる。
【0011】
前記中間処理ユニット30においてステイプル処理が施された用紙(用紙束)に更に2つ折り処理(以下,中折り処理という)を施す場合には,該用紙束は,前記中間処理ユニット30内からその下側に設けられた中折りユニット40内の搬送路r5へ送り出され,前記中折り処理を施さない場合には上側の搬送路r4へ送り出される。
前記用紙の前記搬送路r5への送り出しは,前記中間処理ユニット30の下部に揺動可能に支持された搬送ローラRo2により行われる。前記搬送ローラro2は,通常は,前記搬送ローラRo2に対向して配置された従動ローラro2’と離間する位置に退避しており,用紙を前記搬送路r5へ送り出す際に,前記従動ローラro2’に近接する位置に揺動して前記従動ローラro2’との間に用紙を挟み,前記搬送ローラro2の回転力により前記搬送路r5へ用紙を送り出す(搬送する)。
前記中折りユニット40内の前記搬送路r5に導かれた用紙(用紙束)は,前記中折りユニット40内の搬送ローラro3によってさらに搬送されて所定位置に停止させられる。そして,用紙の搬送方向中央部に押し型41が押し当てられ,用紙が前記押し型41の押し当て面と反対側において対向配置されて回転する2つの中折り用ローラ42の間に2つ折りされながら挟まれる。2つの前記中折り用ローラ42は,互いに対向する方向に付勢されており,この付勢力によって用紙に折り目がつけられる。このようにして中折り処理がなされた用紙は,前記中折り用ローラ42の回転力によってその折り部が先頭となる方向に搬送され,前記中折り用ローラ42上方の搬送路r6を経て,前記中折りユニット40内の排出ローラro4によって,前記用紙入口11の反対側の側面に設けられた下段用紙出口14からその外側に設けられた中折り用紙排出トレイ60上に排出される。このとき,前記下段用紙出口14の上方に回動自在に設けられた用紙抑え部材61により,中折り処理された用紙が抑えられて整合される。
【0012】
一方,前記中間処理ユニット30上側の前記搬送路r4への用紙の送り出しは,前記中間トレイ31に沿って上下に移動可能に設けられた断面T字形状の用紙送り出し部材36によって行われる。前記用紙送り出し部材36は,無端ベルト37bに取付けられており,該無端ベルト37bの正転/逆転によって上下に移動するよう構成されており,前記中間トレイ31の裏面側(下側)へ退避させることも可能である。また,前記用紙送り出し部材36と前記第2の用紙端部受け部33との上下動の範囲は一部で重複しており,前記用紙送り出し部材36を最下端へ移動させた位置の方が,前記第2の用紙端部受け部33を最上端へ移動させた位置よりも下側となるよう構成されている。
このように構成された前記用紙送り出し部材36により,以下のようにして用紙が上側の前記搬送路4へ送り出される。
先ず,前記用紙送り出し部材36を裏面側へ退避させた状態で,用紙を積載した前記第2の用紙端部受け部33を最上端まで移動させる。次に,前記用紙送り出し部材36を最下端から表面側へ移動させ,さらに前記第2の用紙端部受け部33よりも上側へ移動させることにより前記第2の用紙端部受け部33に積載された用紙を前記用紙送り出し部材36上に積み替える。そして,更に前記用紙送り出し部材36を上側へ移動させることにより,積み替えられた用紙が前記搬送路r4へ送り出される。
このようにして前記搬送路r4に搬送されてきた用紙(用紙束)は,用紙排出手段62により搬送が引き継がれて,該用紙排出手段62の具備する排出ローラRo6の回転力により上段用紙出口13からその外側に複数の用紙トレイを設けて構成されるジョブトレイ50のいずれかの用紙トレイに排出される。該ジョブトレイ50は,それぞれ用紙の排出方向に向かって上向くように傾斜して設けられている。さらに,前記ジョブトレイ50は上下方向に一斉に昇降可能に構成され,その停止位置によって前記上段用紙出口13から排出される用紙をいずれの前記ジョブトレイ50で受けるかを順次切り替える。前記ジョブトレイ50の昇降動作は,指定された順序で重ねた用紙束ごとに複数のトレイに分けて排出するいわゆるソート処理,或いはグループ処理を行う際に行われる。
【0013】
次に,図4を参照しつつ,当該後処理装置Xに設けられる穿孔処理手段70と,その穿孔処理により生ずる穿孔カスを収容する穿孔カス収容部71について詳説する。
図4は,当該後処理装置Xに設けられる前記穿孔処理手段70及び前記穿孔カス収容部71に関係する部分を模式的に示す要部拡大図である。
同図に示すように,前記穿孔処理手段70は,上ガイド板84と,左ガイド板82a及び右ガイド板82bとで形成される用紙搬送経路(前記用紙搬送経路r1に該当)の上方に設けられる偏心カム87と,該偏心カム87に当接して設けられ,該偏心カム87の回動に応じて上下動(図中には矢印Gで示す)されるパンチ刃86と,を具備して概略構成され,該偏心カム87を用紙Pの搬入に応じて回動させることにより,以下のようにして用紙Pに対し穿孔処理が施される。先ず,図4には不図示である前記搬送ローラro7により搬送された用紙Pが所定位置(図中にはSで示す位置)まで搬送されたことを検出し,その検出に応じて,用紙Pの搬送を一旦停止させる。ここで,用紙Pが,所定位置まで搬送されたことを判定する手法としては,例えば,所定位置近傍に光センサ等の非接触センサを設け,その検出に応じて判定することが可能である。このようにして用紙Pが所定位置まで搬送されたと判定されると,前記搬送ローラro7が停止され,用紙Pは所定の位置にて停止される。尚,用紙Pを搬入させている今の段階では,前記偏心カム87は,前記パンチ刃86を用紙Pの搬送を妨げない位置(以下,退避位置という)に配置する所定の角度(例えば,図中に示す位置から180°回転した角度であって,以下,退避角度という)で停止している。
次に,用紙Pが所定位置にて停止されると,前記偏心カム87を退避角度から図中に示すRの方向に回転させる。前記偏心カム87の回転に伴って,前記パンチ刃86は,退避位置から用紙方向に向かって下降を始め,最終的には用紙Pに孔を開ける位置(パンチ位置)まで下降する。そして,前記偏心カム87を更に回動させせることにより,前記パンチ刃86はパンチ位置から上昇に転じ,前記偏心カム87が退避角度まで回動するのに伴って,再び退避位置に戻る。
尚,前記パンチ刃86は,前記上ガイド板84に設けられる刃ガイド85,及び前記上ガイド板84に対向する下ガイド板83により案内(摺動)されることにより,用紙Pに対しその紙面に垂直な方向から正確に穿孔処理することができる。
このようにして,前記偏心カム87の回動に応じて上下動される前記パンチ刃86により,所定の位置に正確に穿孔処理が施された用紙Pは,再び不図示である前記搬送ローラro7その他の搬送ローラにより所定の搬送方向に搬送され,当該穿孔処理手段70の下流に設けられる搬送ローラro1へと導かれ,上述したような処理(ステイプル処理,中折り処理)が順次施される。
一方,前記穿孔処理手段70(前記パンチ刃86)により用紙Pから打ち抜かれた穿孔カスP1は,図中に破線,及び矢印Hで示す落下軌跡(一例)を描いて略下方向に落下する。そのため,該穿孔カスP1を収容する前記穿孔カス収容部71は,前記パンチ刃86の下方に,開口部71bを有して設けることで,前記穿孔処理手段70の穿孔処理により生じる穿孔カスを効率良く回収できる。
該穿孔カス収容部71を前記穿孔処理手段70の下方に対して脱着可能に取り付ける構成としては,例えば,前記穿孔処理手段70の下方に,用紙の搬送方向に垂直な方向に形成された溝部80aを有する保持部80を設けると同時に,前記穿孔カス収容部71の開口部71b近傍に前記溝部80aに対応する凹部72を設けた構成(図5参照)が考えられる。このような構成であれば,該穿孔カス収容部71の着脱は,前記保持部80の溝部80aに対し,前記穿孔カス収容部71の凹部72を係合させつつスライドさせる(図4においては,紙面に垂直な方向)という簡単な方法により,前記穿孔カス収容部71を前記穿孔処理手段70の下方所定の位置に確実に固定でき,必要に応じて容易に取り外すことができる。
ここで,本実施形態に係る前記穿孔カス収容部71は,前記開口部71b近傍に除電ブラシ73が内設されることを特徴とする。
これにより,該穿孔カス収容部71に収容される穿孔カスP1は,収容される前に確実に前記除電ブラシ73に接触した(除電された)後に収容することが可能である。更に,前記除電ブラシ73を所定の位置に内設することにより,該穿孔カス収容部71を前記後処理装置Xから取り外す際(若しくは後)であっても,該除電ブラシ73は常に除電能力を発揮するため,従来構成の穿孔カス収容部において問題となっていた取り外す際(若しくは後)における穿孔カスの飛散を防止できる。ここで,前記除電ブラシ73は,可撓性の金属ブラシを,導電性の粘着テープ(例えばアルミテープ)により前記穿孔カス収容部71に固着したものを用いればよい。
また,穿孔カスP1を除電する除電ブラシは,前記除電ブラシ73のみに限られるものではなく,例えば,同図に示すように,除電ブラシ83を,前記穿孔カス収容部71の開口部の上方に複数設けてもよい。この場合,前記除電ブラシ83を,穿孔カスP1の落下方向に傾けて配置させることにより,除電能力の向上のみならず,少し中心線からずれた落下軌跡を描く穿孔カスP1を前記穿孔カス収容部71(除電ブラシ73)に対し案内するガイドの効果を発揮させることも可能である。ここで,該除電ブラシ83は,前記除電ブラシ73同様,可撓性の金属ブラシを,導電性の粘着テープ(例えばアルミテープ)により前記保持部80に固着したものである。
更に,前記穿孔カス収容部71自体を,制電性材料により形成することが望ましい。
これにより,該穿孔カス収容部71に収容された後(例えば振動により穿孔カス同士が接触した場合)に帯電した電荷,或いは前記除電ブラシ73,83により除電しきれなかった電荷を,穿孔カスP1→穿孔カス収容部71→装置のフレーム(保持部80を介して)の経路により放電することが可能となり,更に除電能力の向上を図ることができる。例えば,制電性材料の一例としては,PP(ポリプロピレン)にエコレンPP220V(アルミ系帯電防止剤とエステル系帯電防止材の複合品)を混合した樹脂が考えられる。
尚,本実施形態では,前記穿孔カス収容部71が導電性を有することを利用して前記除電ブラシ73を接地することなく,該除電ブラシ73に帯電した電荷を該除電ブラシ73からの空中放電する,或いは除電ブラシ→穿孔カス収容部71→装置のフレームの経路により放電することを考えているが,無論,該除電ブラシ73に対して個別に接地線を設けた形態であってもよい。
このように本実施形態に係る前記穿孔カス収容部71では,該穿孔カス収容部71内部に前記除電ブラシ73を設けることで,電荷が帯電している穿孔カスP1収容した前記穿孔カス収容部71の着脱をしようとした際(後)にも,飛散しようとする穿孔カスを前記除電ブラシ73により除電することが可能であり,穿孔カスを外部に飛散することを防止することができる。
【0014】
最後に,図5に,本実施形態に係る前記穿孔カス収容部71の斜視図(図5(a)参照),及び図5(a)示す矢印FF’による断面図(図5(b)参照)を示す。
同図に示す如く,前記穿孔カス収容部71は,該穿孔カス収容部71の上部に形成された前記開口部71bに対し前記除電ブラシ73が内設されると共に,前記開口部71b近傍に凹部72を形成したものである。更には,該穿孔カス収容部71の正面部には把手71aが設けられ,着脱の際の利便を向上させている。また,本実施形態では,前記除電ブラシ73は前記開口部における長辺の一方にのみ設ける構成としているが,無論,前記開口部における長辺の両方共に設ける構成であってもよい。
【0015】
【発明の効果】
以上説明したように,本発明によれば,穿孔処理により生ずる穿孔カスを収容する穿孔カス収容部に除電ブラシを内設することにより,確実に穿孔カスを除電した後に収容することが可能であると共に,該穿孔カス収容部の着脱の際(後)にも除電能力を損なうことがないため,該穿孔カス収容部の着脱の際(後)に穿孔カスが飛散することを防止するできる。
また,該穿孔カス収容部自体を制電性材料により形成すれば,より除電性能(効率)を向上させることが可能である。
【図面の簡単な説明】
【図1】本発明の実施の形態に係る後処理装置Xの概略断面図。
【図2】本発明の実施の形態に係る後処理装置Xを構成する中間処理ユニットの受け側ユニットの正面図。
【図3】本発明の実施の形態に係る後処理装置Xを構成する中間処理ユニットの断面図。
【図4】本発明の実施の形態に係る穿孔処理手段,及び穿孔カス収容部を模式的に表す要部拡大図。
【図5】本発明の実施の形態に係る穿孔カス収容部の斜視図,及び断面図。
【図6】従来公知の後処理装置X1を模式的に示す概略構成図。
【符号の説明】
11…用紙入り口
13…上段用紙出口
14…下段用紙出口
21…退避ドラム
30…中間処理ユニット
31…中間トレイ
32…第1の用紙端部受け部
33…第2の用紙端部受け部
34,35…ステイプル手段
34’,35’…ステイプル受け部
36…用紙送り出し部材(用紙押さえ部材)
37a,37b…無端ベルト
37c…ベルト軸
40…中折りユニット
41…押し型
42…中折り用ローラ
50…ジョブトレイ
60…中折用紙排出トレイ
61…用紙抑え部材
62…用紙排出手段
70…穿孔処理手段
71…穿孔カス収容部
71a…把手
71b…開口部
73…除電ブラシ
80…保持部
80a…溝部
81…除電ブラシ
82a…左ガイド板
82b…右ガイド板
83…下ガイド板
84…上ガイド板
85…刃ガイド
86…パンチ刃
87…偏心カム
ro1,ro2,ro3,ro7…搬送ローラ
ro4,ro5,ro6,ro8…排出ローラ
r1,r2,r21,r3,r4,r5,r6…用紙の搬送路
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is directed to a perforation waste accommodating portion for accommodating perforation waste generated when a perforated paper is perforated, and a predetermined process (a perforation process, a stapling process, etc.) performed on a conveyed sheet having the perforated debris accommodation portion. The present invention relates to a post-processing device for performing the following.
[0002]
2. Description of the Related Art Conventionally, a plurality of sheets discharged from an image forming apparatus are stored, and a predetermined post-process (for example, a punching process, a stapling process, or a center folding process) is performed on the stored sheet bundle, and then the sheet bundle is discharged. Post-processing devices are known.
Among such post-processing apparatuses, those that perform the perforation processing are generally provided with a detachable perforation waste accommodating portion for accommodating the perforation waste generated by the perforation processing. In other words, the perforation waste container is removed from the apparatus body when the perforation waste accumulates to some extent, and the perforation waste contained inside is used while being discarded.
By the way, the paper processed in the post-processing device is transported along a predetermined transport path formed by a plurality of rollers or guide members, so that the paper is often charged by friction.
Therefore, since the perforation scum generated when performing perforation processing on such a charged sheet is also charged, the perforation scum is electrostatically adsorbed to the opening or the inner wall of the perforation scum storage portion, and the perforated scum is electrostatically adsorbed. There has been a problem that the perforation waste accommodating portion is clogged, or that the perforation waste does not peel off from the inner wall and is difficult to dispose.
Therefore, as a solution to the above problem, there is a device provided with a mechanism for reducing (static elimination) the electrostatic attraction force (static electricity) on the upstream side of the perforated waste container. (For example, see Patent Document 1).
FIG. 6 shows a schematic configuration of a post-processing apparatus having such a mechanism.
As shown in the figure, a sheet P on which an image is formed by an image forming apparatus (not shown) is carried into the post-processing apparatus X1 which is provided (connected) to the image forming apparatus by a conveying roller ro7.
The carried-in paper P is perforated at a predetermined position by a perforation processing unit 70 provided downstream of the carrying roller ro7, and is further carried by the carrying roller ro1 to be carried (placed) into the intermediate processing unit 30. (The flow of the paper is indicated by arrow A). Below the perforation processing section 70, a perforation waste accommodating section 71 for accommodating the perforation waste P1 generated by the perforation processing is provided. The perforated waste container 71 is detached from the post-processing device X1 when the perforated waste P1 has accumulated to some extent, and the stored perforated waste P1 is discarded.
On the other hand, in the intermediate processing unit 30 that accommodates the perforated paper P, the conveyed paper bundle is subjected to predetermined processing (staple processing, center folding processing, and the like), and then the processed paper bundle is processed. Is discharged by a discharge roller ro6 provided at an end of the post-processing device X1. (The flow of paper is indicated by arrow B)
Outside the discharge roller ro6, there is provided a job tray 50 capable of sequentially switching the paper tray facing the discharge roller ro6 by moving up and down in the arrow Z direction. Here, the job tray 50 moves up and down so as to appropriately switch the paper tray facing the discharge roller ro6 (that is, the paper discharge unit) according to the paper discharge mode (sort processing / group processing) selected by the user. Then, the processed sheet bundle discharged from the discharge roller ro6 can be separated into the respective sheet trays, thereby improving the work efficiency or usability of the user using the post-processing device X. Here, in the post-processing apparatus X, a mechanism is provided upstream of the perforated waste container 71 as a mechanism for reducing the electrostatic attraction force charged to the perforated waste P1 stored in the former perforated waste storage unit 71. A neutralizing brush (position indicated by C in the figure), a neutralizing brush (position indicated by D in the figure) provided on a guiding portion 71a for guiding the perforated waste P1 to the perforated waste accommodating portion 71, or the perforated waste accommodating portion There are provided static elimination brushes (positions indicated by E in the figure) provided to come into contact with 71, respectively.
Among these static elimination brushes, the static electricity charged on the paper P by the static elimination brush at the position C, the static electricity charged on the perforated scum P1 by the static elimination brush at the position D, and the static elimination brush at the position E are accommodated in the perforated scum container. It is possible to discharge the static electricity charged on the perforated waste P1, and the problem such as the clogging of the opening of the perforated waste accommodating portion 71 or the attraction to the inner wall caused by the charged perforated waste P1. Can be solved.
As described above, in the post-processing apparatus X1, it is possible to perform predetermined processing (perforation processing, stapling processing) on a sheet to be carried in, and at the same time, to perforate the scum P1 generated by the perforation processing. The waste can be efficiently collected by the waste container.
[0003]
[Patent Document]
JP-A-2000-159421 (page 4-6, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, in the above-described post-processing device X1, although a plurality of static elimination brushes are provided, static elimination for the perforation scum P1 cannot be said to be sufficient. In particular, when the piercing scum P1 accumulates, the perforation scum storage portion 71 is removed. At that time, or after the removal, the static electricity remaining in the perforated waste P1 is repelled and the perforated waste P1 is scattered from the opening of the perforated waste accommodating portion 71.
Therefore, the present invention has been made in view of the above circumstances, and an object of the present invention is to accommodate the scum generated by the piercing process while removing static electricity, and to remove the scum from the main body device (and remove the scum from the main unit). It is another object of the present invention to provide a perforated-scrap accommodating portion capable of sufficiently removing static electricity so that the perforated-scrap does not scatter in (after) and a post-processing apparatus including the perforated-scrap accommodating portion.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, according to the present invention, in a perforated waste accommodating portion for accommodating perforated waste generated by performing perforation processing on a predetermined position of a sheet, static elimination means for removing static electricity of the perforated waste is provided internally. It is configured as a perforated waste container. Here, as the static elimination means, one using a static elimination brush provided in the vicinity of an opening in the perforated scum storage part is considered.
According to such a configuration, it is possible to reliably remove charges charged in the perforated waste stored in the perforated waste storage portion immediately before being stored in the perforated waste storage portion.
Furthermore, unlike the conventional configuration in which the static elimination brush is provided on the device side, by providing the static elimination brush inside the perforated waste accommodating portion, the static elimination capability is continued even when the perforated waste accommodating portion is removed (after). Since it is exhibited, it is possible to reliably prevent scattering of the perforated scum that occurred when (rear) the perforated scum storage unit was removed.
In addition, it is preferable that the perforated waste container itself is formed of an antistatic material.
With such a configuration, it is possible to further improve the ability of removing the perforated scum contained therein, and to more reliably prevent the scum from being scattered from the scum container.
[0006]
Further, the present invention provides a post-processing apparatus having a perforation processing unit for perforating a predetermined position of a conveyed sheet and a perforation container for accommodating perforation generated by the perforation processing. It may be regarded as a post-processing device provided with a storage unit.
[0007]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments and examples of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. The following embodiments and examples are mere examples embodying the present invention, and do not limit the technical scope of the present invention.
Here, FIG. 1 is a schematic sectional view of a post-processing apparatus X according to an embodiment of the present invention, and FIG. 2 is a front view of a receiving unit of an intermediate processing unit constituting the post-processing apparatus X according to the embodiment of the present invention. FIGS. 3 and 4 are cross-sectional views of an intermediate processing unit constituting the post-processing apparatus X according to the embodiment of the present invention. FIG. , FIG. 5 is a perspective view and a cross-sectional view of a perforation waste accommodating section according to an embodiment of the present invention, and FIG. 6 is a schematic configuration diagram schematically showing a conventionally known post-processing apparatus X1. .
[0008]
The post-processing apparatus X according to the embodiment of the present invention has an entire cross-sectional structure as shown in FIG. 1 and is connected to the image forming apparatus W on the right side surface in the drawing. Accordingly, a sheet inlet 11 for receiving an image-formed sheet discharged from the image forming apparatus W is provided on the right side of the post-processing apparatus X as viewed in FIG. Further, in the middle of the sheet conveyance path r1 provided following the sheet inlet 11, a perforation processing means 70 for performing perforation processing on a sheet, and a perforation waste accommodating portion 71 (for accommodating perforation waste generated by the perforation processing). The details of both will be described later), and a punching process is performed at a predetermined position on the sheet in accordance with a predetermined control command from the image forming apparatus W.
The transport path r1 is branched into a transport path r2 for guiding the paper upward and a transport path r3 for guiding the paper downward, and which transport path is guided by a movable guide g1 that is swingably provided. It is configured to be switchable.
The transport path r2 that guides the paper upward is further connected to a transport path r22 that guides the paper being transported in the direction along the peripheral surface of the large evacuation drum 21 and then guides the paper to the transport path r3 that travels downward. .
Then, the sheet transported to the transport path r22 is temporarily retracted along the peripheral surface of the retracting drum 21 and then sent out to the transport path r3 by the rotation of the retracting drum 21.
Further, the sheet guided to the conveyance path r3 heading downward is guided to an intermediate processing unit 30 provided below the movable guide g1 (at the center of the post-processing apparatus).
[0009]
The intermediate processing unit 30 includes an intermediate tray 31 that is provided obliquely, a first sheet end receiving portion 32 that is swingably provided at a predetermined position near the vertical center of the intermediate tray 31, A second sheet end receiving portion 33 movably provided up and down along the tray 31, and first and second staple means 34 provided near the center of the intermediate tray 31 in the vertical direction and performing staple processing on sheets. , 35 are provided. The second sheet end receiving portion 33 is attached to an endless belt 37a, and is configured to move up and down by forward / reverse rotation of the endless belt 37a.
As shown in FIGS. 2 and 3, the intermediate processing unit 30 includes the intermediate tray 31, the first and second sheet end receiving portions 32 and 33, the first and second staples 34, 35, and a cover unit 30b provided with a first staple receiving portion 34 'facing the first staple means 34, and the like. 30b is configured to be detachable from the receiving unit 30a.
FIG. 3 is a sectional view showing a state in which the cover unit 30b is separated from and approaches the receiving unit 30a. As shown in FIG. 3, the cover unit 30b is rotatably supported by the receiving unit 30a, and the rotation causes the cover unit 30b to approach the receiving unit 30a (see FIG. The position (a)) or the distance (the position (b) in FIG. 3) can be moved. Further, the intermediate processing unit 30 is configured to be able to be pulled out from the main body of the post-processing device X toward the front in FIG. 1. After the intermediate processing unit 30 is drawn out, the cover unit 30 b is received by the receiving unit. By separating the intermediate processing unit 30 from the side unit 30a, it is possible to easily perform a jam clearance operation, a maintenance operation, and the like of the intermediate processing unit 30.
FIG. 2 is a front view of the receiving unit 30a of the intermediate processing unit 30 as viewed from the paper inlet 11 side.
The first staple means 34 are arranged in pairs at predetermined intervals in the width direction of the paper (the direction perpendicular to the paper conveyance direction (the vertical direction in FIG. 2)). It is used when performing staple processing at the center in the width direction and staple processing (so-called saddle stitching) at the center in the sheet conveyance direction. The second stapling means 35 is disposed obliquely near one end in the width direction of the sheet, and is used when performing a stapling process at a corner of the sheet. The first staple receiving portion 34 'is provided on the cover unit 30b (see FIG. 3) at a position facing the first staple means 34.
[0010]
The sheet guided to the transport path r3 shown in FIG. 1 is transported downward by a transport roller ro1 provided above the intermediate processing unit 30, falls off the transport roller ro1. One surface (the left surface as viewed in FIG. 1) of the falling sheet is received by the intermediate tray 31, and the leading end (lower end) is the first sheet end receiving portion. 32 or the second paper end receiving portion 33 (corresponding to an example of the paper receiving portion). A plurality of sheets (bundles) stacked (stored) on the intermediate tray 31 are aligned by a sheet alignment mechanism (details will be described later) including a sheet urging member 38 (see FIG. 4) and the like. The stapling process is performed by the first or second stapling means 34, 35.
Which of the first and second sheet end receiving portions 32 and 33 receives the leading end of the sheet is switched by the swinging operation of the first sheet end receiving portion 32. That is, when the first sheet end receiving portion 32 is at a position along the intermediate tray 31 (a position close to, hereinafter referred to as a use position), the leading end of the sheet is the first sheet end receiving portion. 32, when the first sheet end receiving portion 32 is at a retracted position separated from the intermediate tray 31 by its swinging operation, the leading end of the sheet conveyed by the conveying roller ro1 is It is configured to be received by the second sheet end receiving portion 33 that has passed the first sheet end receiving portion 32 and has moved below the first sheet end receiving portion 32 and is waiting. . In the case of receiving a small-sized sheet, the second sheet end receiving portion 33 can be moved above the first sheet end receiving portion 32 to receive the sheet. In this case, the first sheet end receiving portion 32 may be at the use position or the retracted position.
For example, when it is desired to perform staple processing (so-called edge binding) at a predetermined position near the end of a sheet, the first or second sheet is loaded in the first sheet end receiving portion 32. The stapling process is performed by the stapling units 34 and 35. When it is desired to perform staple processing (so-called saddle stitching) near the center of the sheet in the sheet conveyance direction, the second sheet end receiving portion 33 is moved to a position corresponding to the sheet size in a state where sheets are stacked. The first stapling means 34 performs stapling. Further, depending on the size of the sheet (a size larger or smaller than a size to be directly received by the first sheet end receiving portion 32), the sheet conveyed by the conveyance roller Ro1 is temporarily changed to the second sheet. After the sheets are received and stacked by the end receiving portion 33, the first sheet end receiving portion 33 is also reloaded. In this case, first, the conveyed sheet is moved to a position corresponding to the size of the sheet (below or above the position of the first sheet end receiving portion 33). After the second sheet end receiving part 33 loaded with sheets received by the sheet receiving part 33 is moved to a position slightly above the first sheet end receiving part 32 (for example, about 2 mm above). (During this time, the first sheet end receiving portion 32 is at the retracted position), the first sheet end receiving portion 32 is swung to the use position, and further, the second sheet end receiving portion 32 is swung. By moving the section 33 below the first sheet end receiving section 32, the sheets stacked on the second sheet end receiving section 33 are transferred to the first sheet end receiving section 32. Transship. Here, the first sheet end receiving portion 32 is suitable for directly receiving a sheet (for example, A4Y / LTY size) of a size frequently used in the sheet processing apparatus X when the sheet is conveyed. When a sheet of a larger size is conveyed and the stapling process is to be performed while the sheets are stacked on the first sheet end receiving portion 32 ( That is, when edge binding is desired), the above-described reloading is performed. Thus, for a sheet of a size that is frequently used, the sheet can be directly received by the first sheet end receiving section 32, so that it is necessary to perform positioning by moving the second sheet end receiving section 33. And staple processing can be performed quickly. Further, when staple processing (edge binding) is performed at a predetermined position near the edge of the sheet, a higher accuracy is required at the position where the staple processing is performed than in the saddle stitching. In some cases, it is difficult to secure a sufficient positioning accuracy by the alignment using the first and second staples 34 which do not move and the first and second staples 34 which do not move. , 35 can be set in advance with high accuracy, so that staple processing can be performed with sufficient positional accuracy.
[0011]
When the staple-processed sheet (sheet bundle) in the intermediate processing unit 30 is further subjected to two-fold processing (hereinafter, referred to as “center folding processing”), the sheet bundle is moved from the intermediate processing unit 30 to a position below the intermediate processing unit 30. The sheet is sent to the transport path r5 in the center folding unit 40 provided on the side, and is sent to the upper transport path r4 when the center folding process is not performed.
The paper is sent out to the transport path r5 by a transport roller Ro2 swingably supported below the intermediate processing unit 30. Usually, the transport roller ro2 is retracted to a position separated from a driven roller ro2 ′ disposed opposite to the transport roller Ro2, and when the sheet is sent to the transport path r5, the driven roller ro2 ′ is used. And the paper is sandwiched between the driven roller ro2 'and the paper is sent out (transported) to the transport path r5 by the rotational force of the transport roller ro2.
The sheet (sheet bundle) guided to the transport path r5 in the center folding unit 40 is further transported by the transport roller ro3 in the center folding unit 40 and stopped at a predetermined position. Then, a pressing die 41 is pressed against the center of the paper in the conveying direction, and the paper is folded in two between two rotating center folding rollers 42 which are disposed opposite to the pressing surface of the pressing die 41 and are opposed to each other. While being sandwiched. The two center folding rollers 42 are urged in directions facing each other, and the folds are formed on the sheet by this urging force. The sheet that has been subjected to the half-folding process in this manner is conveyed in the direction in which the folded portion becomes the top by the rotational force of the center-folding roller 42, passes through the conveyance path r6 above the center-folding roller 42, and By a discharge roller ro4 in the center folding unit 40, the sheet is discharged from a lower sheet outlet 14 provided on a side surface opposite to the sheet inlet 11 onto a center folded sheet discharge tray 60 provided outside the sheet outlet tray. At this time, the sheet folded in the middle is suppressed and aligned by a sheet holding member 61 rotatably provided above the lower sheet outlet 14.
[0012]
On the other hand, the feeding of the sheet to the transport path r4 above the intermediate processing unit 30 is performed by a sheet feeding member 36 having a T-shaped cross section provided so as to be vertically movable along the intermediate tray 31. The paper feeding member 36 is attached to the endless belt 37b, and is configured to move up and down by forward / reverse rotation of the endless belt 37b, and is retracted to the back side (lower side) of the intermediate tray 31. It is also possible. The vertical movement ranges of the paper feed member 36 and the second paper end receiving portion 33 partially overlap, and the position at which the paper feed member 36 is moved to the lowermost end is better. The second sheet end receiving portion 33 is configured to be lower than a position where the second sheet end receiving portion 33 is moved to the uppermost end.
The sheet is sent to the upper conveying path 4 by the sheet sending member 36 configured as described above as follows.
First, with the sheet feed member 36 retracted to the back side, the second sheet end receiving portion 33 on which sheets are stacked is moved to the uppermost end. Next, the sheet feeding member 36 is moved from the lowermost end to the front side, and further, is moved above the second sheet end receiving section 33 to be loaded on the second sheet end receiving section 33. The stacked sheets are reloaded on the sheet sending member 36. Then, by further moving the sheet sending member 36 upward, the re-stacked sheets are sent to the transport path r4.
The sheet (sheet bundle) conveyed to the conveyance path r4 in this way is taken over by the sheet discharging means 62, and is rotated by the rotational force of the discharging roller Ro6 provided in the sheet discharging means 62, so that the upper paper exit 13 Is discharged to any one of the job trays 50 of the job tray 50 provided with a plurality of paper trays provided outside thereof. The job trays 50 are provided to be inclined so as to face upward in the sheet discharging direction. Further, the job tray 50 is configured so as to be able to move up and down simultaneously in the vertical direction, and sequentially switches which job tray 50 receives the sheet discharged from the upper sheet outlet 13 according to the stop position. The raising / lowering operation of the job tray 50 is performed when a so-called sort process or a group process is performed in which a stack of sheets stacked in a specified order is discharged to a plurality of trays.
[0013]
Next, with reference to FIG. 4, the perforation processing means 70 provided in the post-processing apparatus X and the perforation waste accommodating portion 71 for accommodating the perforation waste generated by the perforation processing will be described in detail.
FIG. 4 is an enlarged view of a main part schematically showing a part related to the perforation processing means 70 and the perforation waste container 71 provided in the post-processing apparatus X.
As shown in the figure, the perforation processing means 70 is provided above a paper transport path (corresponding to the paper transport path r1) formed by the upper guide plate 84 and the left guide plate 82a and the right guide plate 82b. Eccentric cam 87, and a punch blade 86 provided in contact with the eccentric cam 87 and moved up and down (indicated by an arrow G in the figure) in accordance with the rotation of the eccentric cam 87. The paper P is perforated in the following manner by rotating the eccentric cam 87 according to the loading of the paper P. First, it is detected that the sheet P conveyed by the conveying roller ro7 (not shown in FIG. 4) has been conveyed to a predetermined position (position indicated by S in the figure), and in response to the detection, the sheet P Is temporarily stopped. Here, as a method of determining that the sheet P has been transported to the predetermined position, for example, a non-contact sensor such as an optical sensor may be provided near the predetermined position, and the determination may be made according to the detection. When it is determined that the paper P has been transported to the predetermined position in this way, the transport roller ro7 is stopped, and the paper P is stopped at the predetermined position. Note that, at the present stage in which the paper P is being carried in, the eccentric cam 87 has a predetermined angle (for example, as shown in FIG. (The angle is rotated by 180 ° from the position shown in the figure, and is hereinafter referred to as a retreat angle.)
Next, when the paper P is stopped at a predetermined position, the eccentric cam 87 is rotated in the direction of R shown in the drawing from the retracted angle. With the rotation of the eccentric cam 87, the punch blade 86 starts descending from the retracted position toward the sheet, and finally descends to a position where a hole is formed in the sheet P (punch position). Then, by further rotating the eccentric cam 87, the punch blade 86 turns upward from the punch position, and returns to the retracted position again as the eccentric cam 87 rotates to the retracted angle.
The punch blade 86 is guided (slid) by a blade guide 85 provided on the upper guide plate 84 and a lower guide plate 83 facing the upper guide plate 84, so that the paper P Drilling can be performed accurately from a direction perpendicular to the hole.
In this way, the sheet P, which has been accurately punched at a predetermined position by the punch blade 86 which is moved up and down in accordance with the rotation of the eccentric cam 87, is transported again by the transport roller ro7 (not shown). The sheet is conveyed in a predetermined conveying direction by the other conveying rollers, guided to a conveying roller ro1 provided downstream of the perforation processing means 70, and subjected to the above-described processing (staple processing and center folding processing) sequentially.
On the other hand, the perforation waste P1 punched from the sheet P by the perforation processing means 70 (the punch blade 86) falls substantially downward in a drawing along a trajectory (an example) indicated by a broken line and an arrow H in the drawing. Therefore, by providing the perforated waste accommodating portion 71 for accommodating the perforated waste P1 below the punch blade 86 and having the opening 71b, the perforated waste generated by the perforation processing of the perforation processing means 70 can be efficiently removed. Can be collected well.
As a configuration in which the perforated waste container 71 is detachably mounted below the perforation processing means 70, for example, a groove 80a formed below the perforation processing means 70 and formed in a direction perpendicular to the sheet conveying direction. A configuration is conceivable in which, at the same time as the provision of the holding portion 80 having the concave portion 72, the concave portion 72 corresponding to the groove portion 80a is provided in the vicinity of the opening portion 71b of the perforated waste accommodating portion 71 (see FIG. 5). With such a configuration, the attachment and detachment of the perforated waste container 71 is slid while engaging the concave portion 72 of the perforated waste container 71 with the groove 80a of the holding portion 80 (in FIG. 4, By a simple method (perpendicular to the plane of the paper), the perforated waste container 71 can be securely fixed at a predetermined position below the perforation processing means 70, and can be easily removed as necessary.
Here, the perforated waste container 71 according to the present embodiment is characterized in that a static elimination brush 73 is provided in the vicinity of the opening 71b.
Thus, the perforated waste P1 housed in the perforated waste housing unit 71 can be housed reliably after being brought into contact with (eliminated from) the neutralization brush 73 before being housed. Further, by disposing the neutralizing brush 73 in a predetermined position, even when the perforated waste accommodating portion 71 is removed from the post-processing device X (or after), the neutralizing brush 73 always has the static eliminating ability. Because of this, it is possible to prevent scattering of perforated scum at the time of removal (or after), which is a problem in the perforated scum accommodating portion of the conventional configuration. Here, as the static elimination brush 73, a brush in which a flexible metal brush is fixed to the perforated waste container 71 with a conductive adhesive tape (for example, aluminum tape) may be used.
Further, the discharging brush for discharging the perforated waste P1 is not limited to the above-described discharging brush 73. For example, as shown in the drawing, the discharging brush 83 is placed above the opening of the perforated waste container 71. A plurality may be provided. In this case, by arranging the neutralization brush 83 at an angle in the falling direction of the perforated scum P1, not only the static elimination ability is improved, but also the perforated scum P1 that draws a drop trajectory slightly off-center from the perforated scum storage unit. It is also possible to exert the effect of the guide for guiding the discharge brush 71 (the static elimination brush 73). Here, like the static elimination brush 73, the static elimination brush 83 is formed by fixing a flexible metal brush to the holding portion 80 with a conductive adhesive tape (for example, aluminum tape).
Further, it is desirable that the perforated waste container 71 itself be formed of an antistatic material.
As a result, the electric charge charged after being accommodated in the perforation waste accommodating portion 71 (for example, when the perforation wastes come into contact with each other due to vibration) or the electric charge that cannot be completely removed by the neutralization brushes 73 and 83 is removed from the perforation waste P1. It is possible to discharge through the path of the perforated waste container 71 → the frame of the device (via the holding unit 80), and the charge removal ability can be further improved. For example, as an example of the antistatic material, a resin in which Ekolen PP220V (a composite product of an aluminum-based antistatic agent and an ester-based antistatic material) is mixed with PP (polypropylene) can be considered.
In the present embodiment, by utilizing the fact that the perforated waste container 71 has conductivity, the charge charged on the neutralization brush 73 is discharged in the air from the neutralization brush 73 without grounding the neutralization brush 73. Although it is considered that the discharging is performed through the path of the discharging brush → the perforated waste container 71 → the frame of the apparatus, it is needless to say that a ground line may be individually provided for the discharging brush 73.
As described above, in the perforated waste container 71 according to the present embodiment, by providing the discharging brush 73 inside the perforated waste container 71, the perforated waste container 71 containing the charged perforated waste P1 is provided. Even when the user attempts to attach / detach (after) the perforated scum to be scattered, the electricity can be eliminated by the neutralizing brush 73, and the spilled scum can be prevented from scattering to the outside.
[0014]
Finally, FIG. 5 is a perspective view of the perforated waste accommodating portion 71 according to the present embodiment (see FIG. 5A), and a cross-sectional view along an arrow FF ′ shown in FIG. 5A (see FIG. 5B). ).
As shown in the figure, the perforated waste container 71 has the discharging brush 73 provided inside the opening 71b formed on the upper part of the perforated waste container 71, and has a concave portion near the opening 71b. 72 is formed. Further, a handle 71a is provided on a front portion of the perforated waste container 71 to improve convenience in attaching and detaching. Further, in the present embodiment, the discharging brush 73 is provided only on one of the long sides of the opening, but it is a matter of course that both the long sides of the opening may be provided.
[0015]
【The invention's effect】
As described above, according to the present invention, it is possible to reliably remove the perforated scum and remove the pierced scab by accommodating the pierced scab by arranging the static elimination brush in the pierced scab receiving portion for accommodating the scum generated by the piercing process. At the same time, the charge removing capability is not impaired when attaching and detaching the perforated waste accommodating portion (after), so that it is possible to prevent scattering of perforated waste when attaching and detaching the perforated waste accommodating portion (after).
Further, if the perforated waste container itself is formed of an antistatic material, it is possible to further improve the static elimination performance (efficiency).
[Brief description of the drawings]
FIG. 1 is a schematic sectional view of a post-processing apparatus X according to an embodiment of the present invention.
FIG. 2 is a front view of a receiving side unit of an intermediate processing unit constituting the post-processing apparatus X according to the embodiment of the present invention.
FIG. 3 is a sectional view of an intermediate processing unit included in the post-processing apparatus X according to the embodiment of the present invention.
FIG. 4 is an enlarged view of a main part schematically showing a perforation processing unit and a perforation waste accommodating unit according to the embodiment of the present invention.
FIGS. 5A and 5B are a perspective view and a cross-sectional view of a perforated waste container according to the embodiment of the present invention.
FIG. 6 is a schematic configuration diagram schematically showing a conventionally known post-processing apparatus X1.
[Explanation of symbols]
11 ... Paper entrance
13 Upper paper exit
14 Lower paper exit
21 ... evacuation drum
30 ... intermediate processing unit
31 ... Intermediate tray
32 first paper end receiving portion
33: second paper end receiving portion
34, 35 ... staple means
34 ', 35': Staple receiving section
36 ... Paper feeding member (paper pressing member)
37a, 37b ... endless belt
37c ... Belt shaft
40 ... Center folding unit
41 ... Push type
42 ... Center folding roller
50 ... Job tray
60 ... Fold paper ejection tray
61 ... Paper holding member
62 ... paper discharging means
70 ... perforation processing means
71 ... perforated waste container
71a ... handle
71b ... opening
73 ... static elimination brush
80 ... holding part
80a ... groove
81 ... static elimination brush
82a: Left guide plate
82b ... Right guide plate
83 ... Lower guide plate
84 Upper guide plate
85 ... Blade guide
86 ... Punch blade
87: Eccentric cam
ro1, ro2, ro3, ro7 ... Convey roller
ro4, ro5, ro6, ro8 ... discharge roller
r1, r2, r21, r3, r4, r5, r6 ... paper transport path

Claims (4)

用紙の所定位置に穿孔処理を施すことにより生ずる穿孔カスを収容する穿孔カス収容部において,
前記穿孔カスの静電気を除去する除電手段が内設されてなることを特徴とする穿孔カス収容部。
In a perforated waste container for accommodating perforated waste generated by performing perforation processing on a predetermined position of a sheet,
A perforation waste accommodating portion, wherein a static elimination means for removing static electricity from the perforation waste is provided therein.
前記除電手段が,前記穿孔カス収容部内の開口部近傍に内設される除電ブラシである請求項1に記載の穿孔カス収容部。The perforated waste accommodating part according to claim 1, wherein the static elimination means is a static eliminating brush provided near an opening in the perforated waste accommodating part. 当該穿孔カス収容部自体が,制電性材料により形成されてなる請求項1あるいは2のいずれかに記載の穿孔カス収容部。3. The perforated waste accommodating portion according to claim 1, wherein the perforated waste accommodating portion itself is formed of an antistatic material. 搬送される用紙の所定位置に穿孔処理を施す穿孔処理部と,穿孔処理により生ずる穿孔カスを収容する穿孔カス収容部と,を具備する後処理装置において,
前記穿孔カス収容部が,前記請求項1〜3のいずれかに記載の穿孔カス収容部であることを特徴とする後処理装置。
In a post-processing apparatus, a post-processing apparatus includes: a perforation processing unit configured to perform a perforation process on a predetermined position of a sheet to be conveyed;
A post-processing device, wherein the perforated waste container is the perforated waste container according to claim 1.
JP2002265464A 2002-09-11 2002-09-11 Chad storing part and post-processing device provided with the same Pending JP2004098243A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002265464A JP2004098243A (en) 2002-09-11 2002-09-11 Chad storing part and post-processing device provided with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002265464A JP2004098243A (en) 2002-09-11 2002-09-11 Chad storing part and post-processing device provided with the same

Publications (1)

Publication Number Publication Date
JP2004098243A true JP2004098243A (en) 2004-04-02

Family

ID=32264600

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002265464A Pending JP2004098243A (en) 2002-09-11 2002-09-11 Chad storing part and post-processing device provided with the same

Country Status (1)

Country Link
JP (1) JP2004098243A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006116662A (en) * 2004-10-22 2006-05-11 Kyocera Mita Corp Post-processor and image forming apparatus including it
JP2006136956A (en) * 2004-11-10 2006-06-01 Ricoh Co Ltd Paper processing device and image forming device
US7735402B2 (en) 2006-06-22 2010-06-15 Sharp Kabushiki Kaisha Punching apparatus
US10307929B2 (en) 2016-02-22 2019-06-04 Canon Finetech Nisca Inc. Punching apparatus
US11590672B2 (en) 2016-12-22 2023-02-28 Canon Finetech Nisca Inc. Sheet punching apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006116662A (en) * 2004-10-22 2006-05-11 Kyocera Mita Corp Post-processor and image forming apparatus including it
JP4585831B2 (en) * 2004-10-22 2010-11-24 京セラミタ株式会社 Post-processing apparatus and image forming apparatus having the same
JP2006136956A (en) * 2004-11-10 2006-06-01 Ricoh Co Ltd Paper processing device and image forming device
JP4574330B2 (en) * 2004-11-10 2010-11-04 株式会社リコー Paper processing apparatus and image forming apparatus
US7735402B2 (en) 2006-06-22 2010-06-15 Sharp Kabushiki Kaisha Punching apparatus
US10307929B2 (en) 2016-02-22 2019-06-04 Canon Finetech Nisca Inc. Punching apparatus
US11590672B2 (en) 2016-12-22 2023-02-28 Canon Finetech Nisca Inc. Sheet punching apparatus

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