JP3701904B2 - Intermediate tray and recording material processing apparatus - Google Patents

Intermediate tray and recording material processing apparatus Download PDF

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Publication number
JP3701904B2
JP3701904B2 JP2001398303A JP2001398303A JP3701904B2 JP 3701904 B2 JP3701904 B2 JP 3701904B2 JP 2001398303 A JP2001398303 A JP 2001398303A JP 2001398303 A JP2001398303 A JP 2001398303A JP 3701904 B2 JP3701904 B2 JP 3701904B2
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Japan
Prior art keywords
recording material
cradle
intermediate tray
recording
carry
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JP2002356269A (en
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隆志 古谷
昌彦 宮崎
正晃 丸田
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Kyocera Document Solutions Inc
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Kyocera Mita Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65HHANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2405/00Parts for holding the handled material
    • B65H2405/20Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked on edge
    • B65H2405/22Cassettes, holders, bins, decks, trays, supports or magazines for sheets stacked on edge pocket like holder

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Description

【0001】
【発明の属する技術分野】
この発明は、複写機、プリンタ等の画像形成装置に接続されて、シート状の記録材に孔明けやスーテープル処理等を行う記録材処理装置に関し、特に記録材を搬送路の途中で一時的に収容する中間トレイに関するものである。
【0002】
【従来の技術】
例えば、画像形成装置の記録材排出側に接続される記録材処理装置は、画像形成装置から排出された画像形成済みのシート状の記録材にステープル処理等の後処理を施す場合、所定枚数の記録材を中間トレイに一時的に収容し、その中間トレイ上に収容した記録材を整合した後、ステープル装置を作動させるようになっている。
【0003】
【発明が解決しようとする課題】
しかし、図7に示すように、このような記録材処理装置100は、記録材P1がカール(湾曲変形)していると、その後端が搬入ローラ101に引っかかって、記録材P1が中間トレイ102上に正しく積載されず、カールした記録材P1の後端に次の記録材P2の先端が引っかかり、記録材P2が詰まる(以下、ジャムと略称する)という不具合を生じることがある。
【0004】
そこで、本発明は、記録材がカールしていても、ジャムという不具合が発生しにくい構造の中間トレイ及びこの中間トレイを備えた記録材処理装置を提供することを目的とする。
【0005】
【課題を解決するための手段】
請求項1の発明は、記録材搬送路の途中に配置されて、その記録材搬送路に沿って搬送される記録材を一時的に収容する記録材受け台と、記録材のサイズに対応するように、前記記録材搬送路に沿って複数配置され、対応するサイズの記録材を前記記録材受け台上に搬入する記録材搬入手段と、前記記録材受け台上の記録材を前記記録材受け台上から排出する記録材移動手段と、を備えた中間トレイに関するものである。そして、前記記録材搬入手段が、前記記録材を前記記録材受け台上に送り込む搬入ローラ対と、この搬入ローラ対のニップ部から離れた記録材の後端を記録材受け台側へ押し込む可動部材とを有している。また、前記可動部材は、前記記録材移動手段が前記記録材を前記記録材受け台上から排出する際に、前記記録材受け台との間隔を前記搬入ローラ対と前記記録材受け台との間隔よりも狭くして、前記記録材の浮き上がりを押さえるようになっている。
【0006】
請求項2の発明は、請求項1の中間トレイにおいて、前記記録材受け台に前記記録材搬入手段によって送り込まれた記録材の先端を受け止めて位置決めする受け止め部材と、前記記録材受け台上に送り込まれた記録材の浮き上がりを押さえると共に、前記受け止め部材に記録材の先端が当接するように記録材を搬送する押さえコロと、前記受け止め部材に取り付けられ、前記記録材受け台上に前記記録材搬入手段によって送り込まれた記録材の先端の浮き上がりを押さえる押さえ部材と、を備えたことを特徴としている。
【0007】
請求項3の記録材処理装置の発明は、請求項1又は2の発明に係る中間トレイと、この中間トレイに収容された記録材を整合する整合手段と、この整合手段によって整合された記録材に所望の処理を施す記録材処理手段と、を備えたことを特徴としている。
【0008】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づき説明する。
【0009】
[第1の実施の形態]
(記録材処理装置)
図1は、本発明の実施の形態に係る記録材処理装置1を示すものである。この図1に示す記録材処理装置1は、画像形成装置としての複写機2の記録材排出側に接続され、複写機2の排出ローラ対3から排出された記録材(シート状の紙,プラスチックフィルム等)を内部に導入して、記録材にファイリング用の孔明けを施したり、また、記録材の束にステープル処理を施すようになっている。
【0010】
この記録材処理装置1は、ほぼ直方体形状のハウジング4を備えており、その複写機2側の排出ローラ対3に対向する部分に記録材搬入口5が形成されている。そして、この記録材搬入口5に隣接する位置には、記録材にファイリング用の孔明けを施すパンチ処理手段6が配置されている。
【0011】
パンチ処理手段6は、複写機2側の排出ローラ対3によって記録材搬入口5からハウジング4の内部に送り込まれた記録材を上下の案内部材7a,7bの間に導くようになっている。そして、このパンチ処理手段6は、上下の案内部材7a,7bの間に位置する記録材の先端位置を図示しないストッパで一時的に止めて位置決めし、孔明け用のパンチ8を下の案内部材7bのパンチ受け孔(図示せず)に係合するように上下動させ、記録材の先端側に孔を明ける。次いで、このパンチ処理手段6は、図示しないストッパを退避させる。その結果、記録材は、複写機2側の排出ローラ対3によってカール取り装置10に送り込まれる。なお、このパンチ処理手段6による孔明け作業時間は、ストッパと複写機2側の排出ローラ対3間の記録材が僅かに湾曲する程度の極短時間である。したがって、記録材の搬送上において不具合が生じるようなことがない。
【0012】
カール取り装置10は、二組のカール取りローラ対11,12からなっている。この二組のカール取りローラ対11,12の一方と他方で全く逆の方向のカール取りを行うようになっている。
【0013】
カール取り装置10から送り出された記録材は、搬送ローラ対13によって第1記録材搬送路14又は第2記録材搬送路15へ送られる。ここで、第1記録材搬送路14と第2記録材搬送路15は、分岐爪16により切り換えられるようになっている。すなわち、分岐爪16が第2記録材搬送路15を閉じ且つ第1記録材搬送路14を開くと(分岐爪16が図1の点線位置まで移動すると)、搬送ローラ対13から送り出された記録材が分岐爪16及び第1記録材搬送路14に案内されてノンソート用排出ローラ対17のニップ部まで搬送される。そして、記録材は、ノンソート用排出ローラ対17によってノンソート用排出トレイ18に排出される。また、分岐爪16が第1記録材搬送路14を閉じ且つ第2記録材搬送路15を開くと(分岐爪16が図1の実線位置にあるときは)、搬送ローラ対13から送り出された記録材が分岐爪16及び第2記録材搬送路15に案内されて中間トレイ20側へ搬送される。
【0014】
第2記録材搬送路15を移動する記録材は、サイズによって中間トレイ20の記録材受け台21上に案内される経路が異なる。すなわち、中間トレイ20は、第1〜第4サイズまでの4タイプの記録材に対応するように、第2記録材搬送路15に沿って第1〜第4までの4つの記録材搬入手段22〜25が順次配置されている。
【0015】
第1〜第3の記録材搬入手段22〜24は、搬入ローラ対26〜28と、その搬入ローラ対26〜28の記録材搬送方向下流側に位置する可動案内部材(可動部材)30〜32とからなっている。例えば、第1の記録材搬入手段22は、第1サイズの記録材が第2記録材搬送路15を搬送されてくると、可動案内部材30が図1の点線位置まで移動して第2記録材搬送路15を閉じ、搬入ローラ対26によって搬送される記録材を記録材受け台21へ案内する。そして、第1の記録材搬入手段22の可動案内部材30は、記録材が搬入ローラ対26のニップから離れたタイミングで図1の実線位置まで移動し、搬入ローラ対26の極近傍で記録材の後端を叩き、記録材を記録材受け台21上へ確実に押し込むようになっている。このようにすれば、記録材がカールしていても、そのカールした記録材の後端が搬入ローラ対26に引っかかるのを防止できるため、従来例のようなジャムが発生しにくくなる。なお、第2と第3の記録材搬入手段23,24は、上述の第1の記録材搬入手段22と同様の構成であり、それぞれに対応するサイズの記録材に対して上述の第1の記録材搬入手段22と同様に作用する。
【0016】
第4の記録材搬入手段25は、搬入ローラ対33と、第2記録材搬送路15の下流端に位置する静止案内部34と、搬入ローラ対33の記録材搬送方向下流側に位置する叩き部材(可動部材)35とからなっている。叩き部材35は、ハウジング4に固定された枠体に取り付けられた支軸36で揺動できるように支持されており、第4サイズの記録材が搬入ローラ対33のニップから離れたタイミングで図1に示す実線位置から点線位置まで揺動して、記録材の後端を叩くようになっている。これにより、第4の記録材搬入手段25は、第4サイズの記録材がカールしていても、上述の第1の記録材搬入手段22と同様にジャムの発生を防止できる。
【0017】
上述の第1〜第4の記録材搬入手段22〜25のいずれかによって記録材受け台21上に送り込まれた記録材は、押さえコロ37によって浮き上がりを押さえられるとともに、押さえコロ37によって図1の下方へ更に送り込まれるようになっている。そして、この押さえコロ37は、記録材の先端が記録材受け台21の下端部に位置する受け止め部材38に当接するタイミングで回転が停止するようになっている。その結果、記録材受け台21上に搬入された記録材は、その先端がホームポジションにある受け止め部材38によって位置決めされ、搬入移動が停止させられる。
【0018】
記録材受け台21の受け止め部材38は、記録材の先端(図2における記録材Pの下端)を受け止めるとともに、所定枚数の記録材をスタックできるように構成されている。そして、この受け止め部材38には、フィルム状のプラスチックで形成された押さえ部材40が取り付けられており、この押さえ部材40の弾性力によってスタックされた記録材の先端側上面の浮き上がりが押さえられる。
【0019】
記録材受け台21上に所定枚数の記録材がスタックされると、整合手段41の幅寄せ機構42によって幅寄せ板43が作動させられて、記録材の幅方向(図1の紙面に垂直な方向)の整合が行われる。
【0020】
そして、この整合手段41による記録材の束の整合作業が終了すると、ステイプラー(記録材処理手段)44が作動させられ、記録材の束の先端側にステイプル処理が施される。
【0021】
ステイプル処理が施された記録材の束は、記録材移動手段45によってソート用排出ローラ対46のニップ部まで搬送される。すなわち、記録材移動手段45は、駆動プーリ47が回転駆動されると、駆動プーリ47と従動プーリ48に巻き掛けられた無端ベルト50が反時計回り方向に回転駆動させられ、無端ベルト50と一体の受け止め部材38が図1のホームポジションから記録材受け台21の表面に沿って移動させられて、記録材の束を記録材受け台21の表面に沿って図1の上方へ持ち上げ、その記録材の束の先端部をソート用記録材排出路51を通してソート用排出ローラ対46のニップ部まで搬送するようになっている。
【0022】
そして、記録材の束は、ソート用排出ローラ対46によってソート用排出トレイ52上に排出される。ソート用排出トレイ52は、その上面位置がセンサ53により検知され、その上面位置が記録材の束を積載するのに最適な高さ位置になるように作動制御される。
【0023】
なお、この記録材処理装置1は、記録材にステープル処理等を施す時間や、記録材の束をソート用排出トレイ52に排出する時間等を考慮し、記録材の搬送速度(搬送ローラ対13や搬入ローラ対26〜28,33等の回転速度)が決定されている。
【0024】
(中間トレイの詳細構造及び作動状態)
図2〜図3は、本実施の形態に係る中間トレイ20の詳細構造及び作動状態を説明するための図である。これらの図に示すように、例えば、搬入ローラ対33は、一方がゴムで他方がPOM等の樹脂材料で形成されており、記録材Pの幅方向(図1及び図2の紙面に垂直な方向)に間隔をあけて複数個配置されており、搬送力が確実に記録材に伝わるようになっている。そして、各搬入ローラ33,33間には、記録材Pの後端を記録材受け台21側へ叩くように作用するプラスチック製の毛が植えられた記録材叩きローラ54が回転可能に配置されている。この記録材叩きローラ54は、搬入ローラ対33の一方の支持軸に取り付けられており、搬入ローラ対の一方と共に回動するようになっている。
【0025】
各可動案内部材30〜32は、前述のように作動して記録材Pを記録材受け台21上に案内することはもちろんのこと、ステープル処理後の記録材Pの束を中間トレイ20から排出する際に、記録材移動手段45の作動に同期して図2に示す位置まで揺動させられ、その記録材受け台21側の案内面55a,55bと記録材受け台21の表面21aとで記録材Pの束が通過する通路幅を制限し、記録材Pの先端が搬入ローラ対26〜28に引っかかって折れ曲がりやジャムが生じるのを防止するようになっている。なお、可動案内部材30〜32の案内面55a,55bと記録材受け台21の表面21aとの間隔は、搬入ローラ対26〜28と記録材受け台21の表面21aとの間隔よりも狭く設定されるが、記録材処理装置1の使用環境等に応じて調整できるようになっている。
【0026】
叩き部材35は、ハウジング4に固定された静止案内部34の退避凹所56に収容されるようになっており、その一端が静止案内部34に支持された支軸36で揺動できるように支持されている。そして、この叩き部材35は、上述したように、記録材Pの先端が中間トレイ20の上流側に配置されたセンサ57(図1参照)によって検知された後、記録材Pが搬入ローラ対33のニップ部を離れるタイミングで揺動し、記録材Pの後端を叩き、次の記録材Pが搬入される前に退避凹所56に退避するようになっている。また、この叩き部材35は、ステープル処理後の記録材Pの束を記録材受け台21上(中間トレイ20)から排出する際に、退避位置(図2の実線位置)から図2の点線位置まで揺動して記録材Pの上面を搬入ローラ対33よりも記録材受け台21寄りの位置で押さえ、記録材P端部の浮き上がりを押さえるようになっている。その結果、記録材Pの端部がカールしていても、記録材Pの束を中間トレイ20から排出する際に、記録材Pの端部が搬入ローラ対33に引っかかって折れ曲がったり、ジャムを生じるようなことがない。
【0027】
なお、この叩き部材35は、図示しないソレノイドで揺動させられるようになっており、記録材処理装置1の停止時には必ず退避凹所56に退避するようになっている。その結果、中間トレイ20をハウジング4から容易に引き出すことができる。また、この叩き部材35は、少なくとも1個あればよいが、記録材Pの幅寸法を考慮して、図3に示すように、幅方向に複数個配置するのが好ましい。
【0028】
押さえコロ37は、揺動アーム58の先端に回動できるように取り付けられており、上述の搬入ローラ対33の駆動源にギヤ等の動力伝達手段を介して連繋され、搬送ローラ対33等の記録材搬送速度と同様の速度で記録材Pを搬送できるようになっている。また、揺動アーム58は、ハウジング4に固定された静止案内部60に支持軸61を介して揺動可能に支持されており、記録材Pの先端が上述のセンサ57(図1参照)で検知されてから押さえコロ37の接地位置に到達するまでの時間を考慮して作動させられるようになっている。すなわち、揺動アーム58は、記録材Pの先端がほぼ押さえコロ37の接地位置に到達するタイミングで押さえコロ37を記録材受け台21の表面21aに接地させるように退避位置(図2の実線位置)から図2の点線位置まで揺動する。また、揺動アーム58は、ステープル処理後の記録材Pの束を記録材受け台21上から排出する際及び記録材処理装置1の停止時に、退避位置まで退避するように作動制御される。その結果、記録材Pの束を中間トレイ20から排出する作業が円滑に行われ、また、中間トレイ20をジャム処理時等にハウジング4から円滑に引き出すことが可能になる。そして、押さえコロ37は、上述のように、記録材Pの先端が受け止め部材38に当接するタイミングで回転が停止されるようになっている。なお、揺動アーム58は、搬入ローラ対33の動力伝達手段にギヤや電磁クラッチ等を介して連繋して駆動制御したり、また、ソレノイドで駆動したり、また、正逆回転のモータで駆動制御するようにしてもよい。また、押さえコロ37は、図3に示すように、記録材受け台21の幅方向略中央部に1個配置するようになっているが、記録材受け台21上の記録材Pに均等の搬送力を付与するように、複数の押さえコロ37を間隔をあけて配置するようにしてもよい。
【0029】
押さえ部材40は、図3に示すように、記録材Pの先端部の幅方向両端部側を押さえるように一対設置されており、記録材Pの先端側の浮き上がりを防止するようになっている。
【0030】
(本実施の形態の効果)
以上のように、本実施の形態に係る中間トレイ20は、記録材Pを記録材受け台21上にスタックする際に、可動案内部材30〜32又は叩き部材35によって搬入ローラ対26〜28,33近傍の記録材Pの後端を叩き、記録材Pを記録材受け台21上に押し込むことができ、記録材Pの後端が搬入ローラ対26〜28,33に引っかかるのを防止できるため、記録材Pがカールしていたとしても、後から記録材受け台21上に搬入される記録材Pの先端が既に記録材受け台21上にスタックされた記録材Pの後端に引っかかることがなく、ジャムが生じにくい。
【0031】
また、本実施の形態に係る中間トレイ20は、記録材受け台21上に搬入された記録材Pの先端が押さえコロ37によって記録材受け台21の受け止め部材38に当接する位置まで搬送され、しかも受け止め部材38に設置した押さえ部材40で記録材Pの先端の浮き上がりが押さえられるため、記録材Pの先端位置が位置決めされる。したがって、ステープル処理前の記録材Pの整合作業が確実に行われ、高精度のステープル処理が可能になる。
【0032】
また、本実施の形態に係る中間トレイ20は、ステープル処理後の記録材Pの束を記録材受け台21上から排出する際に、可動案内部材30〜32及び叩き部材35で記録材Pの先端の浮き上がりを押さえ、記録材受け台21上を移動する記録材Pの先端が搬入ローラ対26〜28,33に引っかからないように可動案内部材30〜32及び叩き部材35の作動が制御されるようになっているため、記録材受け台21上から排出される記録材Pに折れ曲がりやジャムが生じるのを防止することができる。
【0033】
また、本実施の形態に係る記録材処理装置1は、上述の中間トレイ20を構成の主要部として備えているため、記録材Pのジャムや折れ曲がり等の不具合を生じることなく、ステープル処理を円滑に行うことができ、そのステープル処理後の記録材Pの束を円滑にソート用排出トレイ52上に排出することができる。
【0034】
[第2の実施の形態]
本発明の中間トレイ20は、上述の実施の形態に限られず、図4に示すような態様でもよい。すなわち、図4に示す中間トレイ20は、叩き部材35の揺動支点としての支軸36が搬入ローラ対33の近傍に位置しており、上述の実施の形態の叩き部材35の揺動支点と逆の位置が揺動支点になっている。また、図4に示す中間トレイ20は、押さえコロ37が図示しないソレノイド又はカム等によって上下動して記録材Pに接離するようになっている。しかし、この図4に示す中間トレイ20は、上記叩き部材35の揺動支点位置及び押さえコロ37の作動構成をのぞく他の構成が上述の実施の形態の中間トレイ20と同様であるため、上述の実施の形態の中間トレイ20とほぼ同様の作用・効果を得ることができる。また、上述の実施の形態の叩き部材35が搬入ローラ対33の極近傍で記録材Pの後端を叩くようになっているのに対し、本実施の形態の叩き部材35が搬入ローラ対33から若干離れた位置を叩くことになる。したがって、本実施の形態の叩き部材35よりも上述の実施の形態の叩き部材35の方が、カールした記録材Pの後端を叩く効果が大きく、より確実に記録材Pの後端を記録材受け台21上に押し込むことが可能になる。
【0035】
[第3の実施の形態]
図5は、本発明の第3の実施の形態を示すものであり、中間トレイ20の押さえコロ37の駆動機構を示すものである。
【0036】
この図5において、駆動軸70は、図1で示したハウジング4に回動できるように支持されており、電磁クラッチ71を介して搬入ローラ対33(図1又は図2参照)の駆動源(図示せず)に連繋され、電磁クラッチ71のオン・オフで回転又は停止させられるようになっている。そして、この駆動軸70には、略ミゾ形鋼形状に板金加工された揺動アーム58の一端側が軸受90a,90bを介して揺動できるように支持されている。すなわち、揺動アーム58の対向起立する側板58a,58bの一端側に軸受90a,90bがそれぞれ取り付けられ、これら軸受90a,90bと駆動軸70とが相対回動できるように係合されている。そして、軸受90aの外周側には、コイル状バネ78が係合されている。このコイル状バネ78は、一端側が図1で示したハウジング4側に係止され、他端側が揺動アーム58に係止され、揺動アーム58を一方向(図2の反時計回り方向)に常時付勢するようになっている。
【0037】
揺動アーム58の対向起立する側板58a,58bの他端側に軸受91,92が取り付けられ、これら軸受91,92に出力軸72が回転できるように支持されている。ここで、軸受91は、その外周端の側面突起91aが揺動アーム58の係止穴58cに係合され、揺動アーム58により回動が阻止されるようになっている。
【0038】
出力軸72の両端部で且つ揺動アーム58の側板58a,58bの外側には、それぞれ押さえコロ37が出力軸72と一体回動するように取り付けられている。すなわち、押さえコロ37,37は、出力軸72に固定したピン93a,93bで回り止めされるようになっている。
【0039】
出力軸72の軸受91と軸受92の間には、トルクリミッタ77が取り付けられている。トルクリミッタ77は、内輪77aと外輪77bを逆方向に回転させると一定の負荷が生じるようになっている。ここで、内輪77aが出力軸72に固定したピン93cで回り止めされるようになっている。一方、外輪77bは、その軸受91側の側面に形成された突起77cが軸受91の側面に形成された穴91bに凹凸係合され、軸受91を介して揺動アーム58に係止されている。
【0040】
揺動アーム58の側板58bの外側(図中右側)で且つ駆動軸70の外周には、駆動入力ギヤ73が駆動軸70と一体回動できるように取り付けられている。すなわち、駆動入力ギヤ73は、駆動軸70に固定したピン93dで回り止めされるようになっている。また、揺動アーム58の側板58bの外側(図中右側)で且つ出力軸72の外周には、駆動出力ギヤ75が出力軸72と一体回動できるように取り付けられている。すなわち、駆動出力ギヤ75は、出力軸72に固定したピン93eで回り止めされるようになっている。そして、これら駆動入力ギヤ73と駆動出力ギヤ75が2個のアイドルギヤ74,74で連繋されており、駆動軸70の回転が各ギヤ73,74,74,75を介して出力軸72に伝達されるようになっている。
【0041】
以上のように構成された中間トレイ20の押さえコロ37の駆動機構において、電磁クラッチ71がオンして図外の駆動源の動力が駆動軸70に伝達され、駆動軸70が図2の時計回り方向に回転すると、出力軸72がトルクリミッタ77の負荷に抗して反時計回り方向に回転する。すなわち、出力軸72と一体となって回動する押さえコロ37は、駆動軸70の回転方向(図2の時計回り方向)と逆の方向(図2の半時計回り方向)に回転する。また、このような出力軸72の回転に伴って生じるトルクリミッタ77の負荷は、揺動アーム58を一定方向に回動付勢するコイル状バネ78のバネ力に打ち勝って、揺動アーム58を図2の退避位置(実線位置)から図2の点線位置まで揺動させる。その結果、押さえコロ37が記録材受け台21の表面21aに押し付けられる。この際、押さえコロ37が記録材受け台21の表面21aに押し付けられる力は、トルクリミッタ77の負荷やコイル状バネ78のバネ力等によって定まる一定の力であり、安定した力である。
【0042】
一方、電磁クラッチ71がオフし、駆動軸70と図外の駆動源との連繋が遮断され、駆動軸70の回転が停止すると、揺動アーム58がコイル状バネ78のバネ力で図2の点線位置から図2の退避位置(実線位置)まで揺動させられ、押さえコロ37が記録材受け台21の表面から離れて元の退避位置(図2の実線位置)に戻る。
【0043】
このような本実施の形態の構成を採用すれば、押さえコロ37を一定の力で記録材に当接させることが可能なので、記録材を適切に搬送することができる。また、本実施の形態の構成によれば、駆動軸70を回転させれば押さえコロ37を記録材に当接させることができ、駆動軸70を停止させれば押さえコロ37を記録材から離間させて退避位置まで移動させることができるため、揺動アーム58を駆動するためのソレノイドなどの部材が不要になり、コスト削減を図ることができる。
【0044】
[第4の実施の形態]
図6は、本発明の第4の実施の形態を示すものであり、図2のフィルム状のプラスチックで形成された押さえ部材40に代えて、板金加工された押さえ部材80を使用する態様を示すものである。
【0045】
この図6に示すように、本実施の形態の押さえ部材80は、その中間部分に位置する支点部81がハウジング4に固定された支持部材82に支持ピン83を介して揺動できるように取り付けられている。そして、この押さえ部材80は、支点部81を境として両側が図中下方へ折り曲げられており、この折り曲げられた左側部分84が記録材を記録材受け台21に押し付ける記録材押さえ部分であり、右側部分85が図中時計回り方向の回動力を生じさせる重り部分である。なお、左側部分84の先端は、記録材の先端部分に接触した際に、記録材を傷付けないようにするため、記録材との接触面が円弧面となるように折り曲げられている。また、右側部分85の先端が折り曲げられ、その折り曲げられた部分85aに錘86が固定されている。ここで、押さえ部材80(左側部分84)が記録材を押さえる力は、押さえ部材80の支点位置、押さえ部材80の板厚や形状、錘86の重さ等を調整することにより、最適の大きさにすることができる。なお、錘86は、必要に応じて右側部分85に固定すればよく、省略してもよい。
【0046】
このような構成の押さえ部材80は、記録材を押さえる力が経時的に変化せず、しかも記録材を押さえる力の大きさの調整が可能であるため、フィルム状のプラスチックの弾性力で記録材を押さえる押さえ部材40に比較し、長期間に亘り安定した力で記録材を押さえることができ、より一層安定した記録材の搬送を可能にする。
【0047】
[その他の実施の形態]
また、本発明の中間トレイ20は、記録材処理装置1に限られず、記録材Pの両面に画像形成をできるように構成された複写機,プリンタ等の画像形成装置の中間トレイとしても適用できる。なお、本発明の中間トレイ20を画像形成装置の両面プリント用の中間トレイとして使用する場合には、記録材処理用の整合手段41やステープラー44が取り除かれて適用される。
【0048】
また、本発明は、中間トレイ20上の記録材Pにステイプル処理する上述の実施の形態に限られず、ステイプル処理の変わりに、記録材の束をクリップ止め処理する場合や、記録材の束をテープ綴じする場合等に広く適用される。すなわち、記録材処理手段は、ステープラー44に限られるものではない。
【0049】
なお、上述の実施の形態において、プラスチック製の押さえコロ37の外周にゴムのリング状部分やゴムの突起を形成して、押さえコロ37の搬送力を高めるようにしてもよい。
【0050】
【発明の効果】
以上のように、本発明の中間トレイは、記録材受け台上に記録材を搬入する際に、搬入ローラ対のニップ部から離れた記録材の後端を可動部材で記録材受け台側へ押し込み、また、記録材受け台上の記録材を記録材移動手段で排出する際に、可動部材が記録材の浮き上がりを押さえるように記録材受け台との間隔を搬入ローラ対と記録材受け台との間隔よりも狭くしているため、記録材受け台上への記録材の搬入及び排出時に記録材に折れ曲がりやジャムが生じるのを防止できる。
【0051】
また、本発明の中間トレイは、記録材受け台上の記録材の浮き上がりを押さえコロで押さえるとともに、押さえコロで記録材の先端を受け止め部材に当接させるように搬送し、しかも、記録材の先端の浮き上がりをフィルム状の押さえ部材で押さえるようになっているため、記録材の先端を正確に位置決めした状態で記録材受け台上に記録材を収容できる。
【0052】
また、本発明の記録材処理装置は、上述のような中間トレイを備えているため、記録材の折れ曲がりやジャムを防止でき、しかも記録材処理手段によって正確な記録材の処理を行うことができる。
【図面の簡単な説明】
【図1】記録材処理装置の概略構成図である。
【図2】記録材処理装置の実施の形態を示す一部拡大図である。
【図3】中間トレイを記録材受け台に対して垂直な方向から見た中間トレイの模式的構造図である。
【図4】記録材処理装置の第2の実施の形態を示す一部拡大図である。
【図5】本発明の第3の実施の形態に係る押さえコロの駆動機構を示す図である。
【図6】本発明の第4の実施の形態に係る押さえ部材を示すものである。
【図7】従来の記録材処理装置の一部構成図である。
【符号の説明】
1……記録材処理装置、15……記録材搬送路、20……中間トレイ、21……記録材受け台、22,23,24,25……記録材搬入手段、26,27,28,33……搬入ローラ対、30,31,32……可動案内部材(可動部材)、35……叩き部材(可動部材)、37……押さえコロ、38……受け止め部材、40,80……押さえ部材、41……整合手段、44……ステイプラー(記録材処理手段)、45……記録材移動手段、P……記録材
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a recording material processing apparatus that is connected to an image forming apparatus such as a copying machine or a printer and performs perforation or staple processing on a sheet-like recording material, and in particular, temporarily records the recording material in the middle of a conveyance path. The present invention relates to an intermediate tray to be accommodated.
[0002]
[Prior art]
For example, when a recording material processing apparatus connected to the recording material discharge side of the image forming apparatus performs post-processing such as stapling on the image-formed sheet-like recording material discharged from the image forming apparatus, a predetermined number of sheets are used. The recording material is temporarily stored in the intermediate tray, and after the recording materials stored on the intermediate tray are aligned, the stapling apparatus is operated.
[0003]
[Problems to be solved by the invention]
However, as shown in FIG. 7, in such a recording material processing apparatus 100, when the recording material P <b> 1 is curled (curved deformation), the rear end is caught by the carry-in roller 101, and the recording material P <b> 1 becomes intermediate tray 102. There is a case in which the recording material P2 is jammed (hereinafter abbreviated as jam) due to the leading edge of the next recording material P2 being caught on the trailing edge of the curled recording material P1 which is not correctly stacked on top.
[0004]
SUMMARY An advantage of some aspects of the invention is that it provides an intermediate tray having a structure in which a jam is unlikely to occur even if the recording material is curled, and a recording material processing apparatus including the intermediate tray.
[0005]
[Means for Solving the Problems]
The invention of claim 1 corresponds to the size of the recording material, and a recording material receiving base that is arranged in the middle of the recording material conveyance path and temporarily stores the recording material conveyed along the recording material conveyance path. As described above, a plurality of recording materials arranged along the recording material conveyance path, and recording material carrying means for carrying recording materials of a corresponding size onto the recording material receiving table, and the recording material on the recording material receiving table as the recording material The present invention relates to an intermediate tray provided with recording material moving means for discharging from a cradle. The recording material carry-in means is movable so that the pair of carry-in rollers for feeding the recording material onto the recording material cradle and the rear end of the recording material separated from the nip portion of the carry-in roller pair toward the recording material cradle side. Member. Further, the movable member has an interval from the recording material support when the recording material moving means discharges the recording material from the recording material support. Loading roller pair And the distance between the recording material cradle and the recording material cradle so as to suppress the floating of the recording material.
[0006]
According to a second aspect of the present invention, in the intermediate tray of the first aspect, a receiving member that receives and positions a leading end of the recording material fed into the recording material receiving table by the recording material carrying means, and the recording material receiving table on the recording material receiving table. A pressing roller for conveying the recording material so that the leading end of the recording material comes into contact with the receiving member, while suppressing the lifting of the fed recording material, Attached to the receiving member, And a pressing member that suppresses lifting of the leading edge of the recording material fed by the recording material carrying means on the recording material receiving table.
[0007]
A recording material processing apparatus according to a third aspect of the invention includes an intermediate tray according to the first or second aspect of the invention, an alignment means for aligning the recording material accommodated in the intermediate tray, and a recording material aligned by the alignment means. And a recording material processing means for performing desired processing.
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0009]
[First Embodiment]
(Recording material processing equipment)
FIG. 1 shows a recording material processing apparatus 1 according to an embodiment of the present invention. A recording material processing apparatus 1 shown in FIG. 1 is connected to a recording material discharge side of a copying machine 2 as an image forming apparatus, and is discharged from a discharge roller pair 3 of the copying machine 2 (sheet-like paper, plastic). Film or the like) is introduced into the recording medium, filing holes are made on the recording material, and a bundle of recording materials is stapled.
[0010]
The recording material processing apparatus 1 includes a substantially rectangular parallelepiped housing 4 and a recording material carry-in port 5 is formed at a portion facing the discharge roller pair 3 on the copier 2 side. At a position adjacent to the recording material carry-in port 5, punch processing means 6 is provided for punching the recording material for filing.
[0011]
The punch processing means 6 guides the recording material fed into the housing 4 from the recording material carry-in port 5 by the discharge roller pair 3 on the copier 2 side between the upper and lower guide members 7a and 7b. The punch processing means 6 positions the leading end position of the recording material located between the upper and lower guide members 7a and 7b by temporarily stopping with a stopper (not shown), and the punching punch 8 is positioned below the guide member. 7b is moved up and down to engage with a punch receiving hole (not shown), and a hole is made on the leading end side of the recording material. Next, the punch processing means 6 retracts a stopper (not shown). As a result, the recording material is fed into the curl removing device 10 by the discharge roller pair 3 on the copying machine 2 side. The punching operation time by the punch processing means 6 is an extremely short time such that the recording material between the stopper and the discharge roller pair 3 on the copying machine 2 side is slightly curved. Therefore, there is no problem in conveying the recording material.
[0012]
The decurling device 10 includes two sets of decurling roller pairs 11 and 12. Curling in the opposite direction is performed on one side and the other side of the two pairs of curling roller pairs 11 and 12.
[0013]
The recording material sent out from the curl removing device 10 is sent to the first recording material conveyance path 14 or the second recording material conveyance path 15 by the conveyance roller pair 13. Here, the first recording material conveyance path 14 and the second recording material conveyance path 15 are switched by a branching claw 16. That is, when the branching claw 16 closes the second recording material conveyance path 15 and opens the first recording material conveyance path 14 (when the branching claw 16 moves to the dotted line position in FIG. 1), the recording sent out from the conveyance roller pair 13 is recorded. The material is guided to the branch claw 16 and the first recording material conveyance path 14 and conveyed to the nip portion of the non-sort discharge roller pair 17. Then, the recording material is discharged to the non-sort discharge tray 18 by the non-sort discharge roller pair 17. Further, when the branching claw 16 closes the first recording material conveyance path 14 and opens the second recording material conveyance path 15 (when the branching claw 16 is at the position of the solid line in FIG. 1), it is fed from the conveyance roller pair 13. The recording material is guided to the branching claw 16 and the second recording material conveyance path 15 and conveyed to the intermediate tray 20 side.
[0014]
The recording material moving on the second recording material conveyance path 15 has a different route for being guided onto the recording material receiving table 21 of the intermediate tray 20 depending on the size. That is, the intermediate tray 20 has four recording material carrying means 22 from the first to the fourth recording material along the second recording material conveyance path 15 so as to correspond to the four types of recording materials from the first to the fourth size. ˜25 are sequentially arranged.
[0015]
The first to third recording material carry-in means 22 to 24 include carry-in roller pairs 26 to 28 and movable guide members (movable members) 30 to 32 positioned on the downstream side of the carry-in roller pairs 26 to 28 in the recording material conveyance direction. It is made up of. For example, the first recording material carry-in means 22 moves the movable guide member when the recording material of the first size is conveyed through the second recording material conveyance path 15. 30 1 moves to the dotted line position in FIG. 1 to close the second recording material conveyance path 15 and guide the recording material conveyed by the carry-in roller pair 26 to the recording material receiving base 21. Then, the movable guide member 30 of the first recording material carry-in means 22 moves to the position indicated by the solid line in FIG. 1 at a timing when the recording material moves away from the nip of the carry-in roller pair 26, and in the very vicinity of the carry-in roller pair 26. The recording material is surely pushed onto the recording material cradle 21 by hitting the rear end. In this way, even if the recording material is curled, it is possible to prevent the trailing end of the curled recording material from being caught by the carry-in roller pair 26, so that the jam as in the conventional example is less likely to occur. The second and third recording material carry-in means 23 and 24 have the same configuration as the first recording material carry-in means 22 described above, and the above-described first recording material for the recording material of the corresponding size. It operates in the same manner as the recording material carrying means 22.
[0016]
The fourth recording material carry-in means 25 includes a carry-in roller pair 33, a stationary guide 34 located at the downstream end of the second recording material conveyance path 15, and a tapping located on the downstream side in the recording material conveyance direction of the carry-in roller pair 33. It consists of a member (movable member) 35. The tapping member 35 is supported so that it can be swung by a support shaft 36 attached to a frame fixed to the housing 4, and the fourth size recording material is separated from the nip of the carry-in roller pair 33. 1 is swung from the solid line position to the dotted line position to hit the rear end of the recording material. As a result, the fourth recording material carry-in means 25 can prevent the occurrence of a jam, similar to the first recording material carry-in means 22 described above, even if the fourth size recording material is curled.
[0017]
The recording material fed onto the recording material receiving base 21 by any of the first to fourth recording material carrying means 22 to 25 described above is lifted by the pressing roller 37 and is pressed by the pressing roller 37 in FIG. It is sent further downward. The pressing roller 37 stops rotating when the leading end of the recording material comes into contact with the receiving member 38 located at the lower end of the recording material receiving base 21. As a result, the recording material carried onto the recording material receiving base 21 is positioned by the receiving member 38 whose tip is at the home position, and the carrying-in movement is stopped.
[0018]
The receiving member 38 of the recording material receiving base 21 is configured to receive the leading end of the recording material (the lower end of the recording material P in FIG. 2) and to stack a predetermined number of recording materials. A pressing member 40 made of a film-like plastic is attached to the receiving member 38, and lifting of the upper surface on the front end side of the stacked recording materials is suppressed by the elastic force of the pressing member 40.
[0019]
When a predetermined number of recording materials are stacked on the recording material receiving base 21, the width adjusting plate 43 is operated by the width adjusting mechanism 42 of the aligning means 41, and the width direction of the recording material (perpendicular to the paper surface of FIG. 1). Direction).
[0020]
When the aligning means 41 completes the aligning operation of the recording material bundle, the stapler (recording material processing means) 44 is operated, and the stapling process is performed on the leading end side of the recording material bundle.
[0021]
The bundle of recording materials subjected to the stapling process is conveyed by the recording material moving unit 45 to the nip portion of the sorting discharge roller pair 46. That is, when the driving pulley 47 is driven to rotate, the recording material moving unit 45 is driven to rotate the endless belt 50 wound around the driving pulley 47 and the driven pulley 48 counterclockwise, so that the recording material moving means 45 is integrated with the endless belt 50. 1 is moved along the surface of the recording material cradle 21 from the home position shown in FIG. 1, and a bundle of recording materials is lifted up along the surface of the recording material cradle 21 in FIG. The leading end portion of the bundle of materials is conveyed to the nip portion of the sorting discharge roller pair 46 through the sorting recording material discharge path 51.
[0022]
The bundle of recording materials is discharged onto the sort discharge tray 52 by the sort discharge roller pair 46. The sorting discharge tray 52 has its upper surface position detected by a sensor 53, and its operation is controlled so that the upper surface position becomes an optimum height position for stacking a bundle of recording materials.
[0023]
The recording material processing apparatus 1 takes into account the time for performing a stapling process on the recording material, the time for discharging a bundle of recording materials to the sort discharge tray 52, and the like. And the rotational speed of the carry-in roller pairs 26 to 28, 33, etc.).
[0024]
(Detailed structure and operating state of intermediate tray)
2 to 3 are views for explaining a detailed structure and an operating state of the intermediate tray 20 according to the present embodiment. As shown in these drawings, for example, the pair of carry-in rollers 33 is formed of a rubber material on one side and a resin material such as POM on the other side, and the width direction of the recording material P (perpendicular to the paper surface of FIGS. 1 and 2). A plurality of sheets are arranged at intervals in the direction) so that the conveying force is reliably transmitted to the recording material. A recording material hitting roller 54 in which plastic hairs acting so as to hit the rear end of the recording material P toward the recording material receiving base 21 is rotatably disposed between the carry-in rollers 33 and 33. ing. The recording material hitting roller 54 is attached to one support shaft of the carry-in roller pair 33 and rotates together with one of the carry-in roller pair.
[0025]
Each of the movable guide members 30 to 32 operates as described above to guide the recording material P onto the recording material receiving base 21, and discharges the bundle of recording materials P after stapling from the intermediate tray 20. In this case, the recording material moving means 45 is swung to the position shown in FIG. 2 in synchronization with the operation of the recording material moving means 45, and the guide surfaces 55 a and 55 b on the recording material receiving table 21 side and the surface 21 a of the recording material receiving table 21 are The width of the passage through which the bundle of recording materials P passes is limited to prevent the leading ends of the recording materials P from being caught by the carry-in roller pairs 26 to 28 and causing bending or jamming. The distance between the guide surfaces 55a and 55b of the movable guide members 30 to 32 and the surface 21a of the recording material receiving base 21 is set to be narrower than the distance between the carry-in roller pairs 26 to 28 and the surface 21a of the recording material receiving base 21. However, it can be adjusted according to the usage environment of the recording material processing apparatus 1.
[0026]
The hitting member 35 is accommodated in a retracting recess 56 of the stationary guide portion 34 fixed to the housing 4 so that one end thereof can be swung by a support shaft 36 supported by the stationary guide portion 34. It is supported. As described above, the tapping member 35 detects the leading end of the recording material P by the sensor 57 (see FIG. 1) disposed on the upstream side of the intermediate tray 20, and then the recording material P is loaded into the carry-in roller pair 33. The recording material P is swung at the timing of leaving the nip portion, hits the rear end of the recording material P, and retracts into the retracting recess 56 before the next recording material P is carried. Further, when the bundle of recording materials P after stapling is discharged from the recording material receiving base 21 (intermediate tray 20), the hitting member 35 is moved from the retracted position (solid line position in FIG. 2) to the dotted line position in FIG. And the upper surface of the recording material P is pressed at a position closer to the recording material cradle 21 than the carry-in roller pair 33 to suppress the lifting of the end of the recording material P. As a result, even when the end portion of the recording material P is curled, when the bundle of recording materials P is discharged from the intermediate tray 20, the end portion of the recording material P is caught by the carry-in roller pair 33 and bent or jammed. There is nothing that can happen.
[0027]
The hitting member 35 is swung by a solenoid (not shown), and is always retracted to the retracting recess 56 when the recording material processing apparatus 1 is stopped. As a result, the intermediate tray 20 can be easily pulled out from the housing 4. Further, it is sufficient that at least one hitting member 35 is provided, but in consideration of the width dimension of the recording material P, a plurality of hitting members 35 are preferably arranged in the width direction as shown in FIG.
[0028]
The holding roller 37 is attached to the tip of the swing arm 58 so as to be able to rotate. The holding roller 37 is connected to the drive source of the carry-in roller pair 33 through a power transmission means such as a gear, and the transfer roller pair 33 and the like. The recording material P can be transported at the same speed as the recording material transport speed. The swing arm 58 is supported by a stationary guide portion 60 fixed to the housing 4 so as to be swingable via a support shaft 61, and the tip of the recording material P is the sensor described above. 57 The operation is performed in consideration of the time from the detection at (see FIG. 1) until the press roller 37 reaches the ground contact position. That is, the swing arm 58 is moved to the retracted position (solid line in FIG. 2) so that the pressing roller 37 is grounded to the surface 21a of the recording material receiving base 21 at the timing when the tip of the recording material P almost reaches the grounding position of the pressing roller 37. From the position) to the dotted line position in FIG. The swing arm 58 is controlled to be retracted to the retracted position when discharging the bundle of recording materials P after the staple processing from the recording material receiving base 21 and when the recording material processing apparatus 1 is stopped. As a result, the operation of discharging the bundle of recording materials P from the intermediate tray 20 is performed smoothly, and the intermediate tray 20 can be smoothly pulled out from the housing 4 during jam processing or the like. Then, as described above, the pressing roller 37 is stopped from rotating at the timing when the leading end of the recording material P contacts the receiving member 38. The swing arm 58 is driven and controlled by connecting to the power transmission means of the carry-in roller pair 33 via a gear, an electromagnetic clutch or the like, driven by a solenoid, or driven by a forward / reverse rotating motor. You may make it control. Further, as shown in FIG. 3, one pressing roller 37 is arranged at a substantially central portion in the width direction of the recording material receiving base 21, but is equivalent to the recording material P on the recording material receiving base 21. A plurality of pressing rollers 37 may be arranged at intervals so as to impart a conveying force.
[0029]
As shown in FIG. 3, a pair of pressing members 40 are installed so as to press both ends in the width direction of the leading end portion of the recording material P, and prevent the leading end side of the recording material P from being lifted. .
[0030]
(Effect of this embodiment)
As described above, when the recording material P is stacked on the recording material receiving base 21, the intermediate tray 20 according to the present embodiment has the pair of carry-in rollers 26 to 28, the movable guide members 30 to 32 or the tapping member 35. Since the recording material P in the vicinity of 33 can be hit against the recording material receiving base 21 by hitting the rear end of the recording material P, the rear end of the recording material P can be prevented from being caught by the carry-in roller pairs 26 to 28 and 33. Even if the recording material P is curled, the leading edge of the recording material P which is subsequently carried onto the recording material receiving base 21 is caught by the rear end of the recording material P already stacked on the recording material receiving base 21. There is no jam and it is hard to produce jam.
[0031]
Further, the intermediate tray 20 according to the present embodiment is conveyed to a position where the leading end of the recording material P carried on the recording material receiving table 21 comes into contact with the receiving member 38 of the recording material receiving table 21 by the pressing roller 37. In addition, since the lifting of the leading end of the recording material P is suppressed by the pressing member 40 installed on the receiving member 38, the leading end position of the recording material P is positioned. Therefore, the alignment operation of the recording material P before the stapling process is performed reliably, and a highly accurate stapling process becomes possible.
[0032]
Further, the intermediate tray 20 according to the present embodiment has the movable guide members 30 to 32 and the tapping member 35 to remove the recording material P bundle after the stapling process from the recording material receiving base 21. The operations of the movable guide members 30 to 32 and the hitting member 35 are controlled so that the leading edge of the recording material P moving on the recording material receiving base 21 is not caught by the carry-in roller pairs 26 to 28 and 33 while suppressing the lifting of the leading edge. Therefore, it is possible to prevent the recording material P discharged from the recording material receiving base 21 from being bent or jammed.
[0033]
In addition, since the recording material processing apparatus 1 according to the present embodiment includes the above-described intermediate tray 20 as a main part of the configuration, the stapling process is smoothly performed without causing problems such as jamming or bending of the recording material P. The bundle of recording materials P after the stapling process can be smoothly discharged onto the sorting discharge tray 52.
[0034]
[Second Embodiment]
The intermediate tray 20 of the present invention is not limited to the above-described embodiment, and may be an embodiment as shown in FIG. That is, in the intermediate tray 20 shown in FIG. 4, a support shaft 36 as a swinging fulcrum of the hitting member 35 is positioned in the vicinity of the carry-in roller pair 33, and the swinging support point of the hitting member 35 of the above-described embodiment The reverse position is the swing fulcrum. Further, in the intermediate tray 20 shown in FIG. 4, the pressing roller 37 is moved up and down by a solenoid or a cam (not shown) so as to come into contact with and separate from the recording material P. However, the intermediate tray 20 shown in FIG. 4 is the same as the intermediate tray 20 of the above-described embodiment except for the swing fulcrum position of the hitting member 35 and the operation configuration of the pressing roller 37. It is possible to obtain substantially the same operation and effect as the intermediate tray 20 of the embodiment. The hitting member 35 of the above embodiment hits the rear end of the recording material P in the very vicinity of the carry-in roller pair 33, whereas the hitting member 35 of this embodiment has the hitting roller pair 33. It will hit a position slightly away from the. Therefore, the hitting member 35 of the above-described embodiment has a greater effect of hitting the trailing end of the curled recording material P than the hitting member 35 of the present embodiment, and the trailing end of the recording material P is more reliably recorded. It can be pushed onto the material cradle 21.
[0035]
[Third Embodiment]
FIG. 5 shows a third embodiment of the present invention, and shows a driving mechanism of the pressing roller 37 of the intermediate tray 20.
[0036]
5, the drive shaft 70 is supported by the housing 4 shown in FIG. 1 so as to be able to rotate, and a drive source (see FIG. 1 or FIG. 2) of the carry-in roller pair 33 (see FIG. 1 or 2) via an electromagnetic clutch 71. (Not shown), and can be rotated or stopped by turning on and off the electromagnetic clutch 71. The drive shaft 70 is supported so that one end side of a swing arm 58 formed into a substantially groove-shaped steel plate can swing through bearings 90a and 90b. That is, the bearings 90a and 90b are respectively attached to one end sides of the side plates 58a and 58b that stand opposite to the swing arm 58, and the bearings 90a and 90b and the drive shaft 70 are engaged with each other so as to be relatively rotatable. A coiled spring 78 is engaged with the outer peripheral side of the bearing 90a. One end of the coil spring 78 is locked to the housing 4 shown in FIG. 1, the other end is locked to the swing arm 58, and the swing arm 58 is moved in one direction (counterclockwise direction in FIG. 2). Is always energized.
[0037]
Bearings 91 and 92 are attached to the other end sides of the side plates 58a and 58b, which face the swing arm 58, and the output shaft 72 is rotatably supported by the bearings 91 and 92. Here, the bearing 91 is configured such that the side projection 91 a at the outer peripheral end thereof is engaged with the locking hole 58 c of the swing arm 58, and the swing arm 58 prevents the rotation.
[0038]
Holding rollers 37 are attached to both ends of the output shaft 72 and outside the side plates 58 a and 58 b of the swing arm 58 so as to rotate together with the output shaft 72. That is, the presser rollers 37 and 37 are prevented from rotating by pins 93 a and 93 b fixed to the output shaft 72.
[0039]
A torque limiter 77 is attached between the bearing 91 and the bearing 92 of the output shaft 72. The torque limiter 77 generates a certain load when the inner ring 77a and the outer ring 77b are rotated in the opposite directions. Here, the inner ring 77a is prevented from rotating by a pin 93c fixed to the output shaft 72. On the other hand, the outer ring 77b has a projection 77c formed on the side surface thereof on the bearing 91 side and is engaged with a hole 91b formed on the side surface of the bearing 91 so as to be unevenly engaged. 91 It is latched by rocking arm 58 via.
[0040]
A drive input gear 73 is attached to the outside of the side plate 58 b of the swing arm 58 (on the right side in the drawing) and on the outer periphery of the drive shaft 70 so as to rotate together with the drive shaft 70. That is, the drive input gear 73 is prevented from rotating by the pin 93 d fixed to the drive shaft 70. A drive output gear 75 is attached to the outer side of the side plate 58 b of the swing arm 58 (right side in the drawing) and the outer periphery of the output shaft 72 so that the drive output gear 75 can rotate integrally with the output shaft 72. That is, the drive output gear 75 is prevented from rotating by the pin 93e fixed to the output shaft 72. The drive input gear 73 and the drive output gear 75 are connected by two idle gears 74 and 74, and the rotation of the drive shaft 70 is transmitted to the output shaft 72 via the gears 73, 74, 74 and 75. It has come to be.
[0041]
In the drive mechanism of the pressing roller 37 of the intermediate tray 20 configured as described above, the electromagnetic clutch 71 is turned on to transmit the power of the drive source (not shown) to the drive shaft 70, and the drive shaft 70 rotates clockwise in FIG. When rotating in the direction, the output shaft 72 rotates counterclockwise against the load of the torque limiter 77. That is, the pressing roller 37 that rotates integrally with the output shaft 72 rotates in a direction (counterclockwise direction in FIG. 2) opposite to the rotation direction of the drive shaft 70 (clockwise direction in FIG. 2). In addition, the load of the torque limiter 77 generated by the rotation of the output shaft 72 overcomes the spring force of the coiled spring 78 that urges the swing arm 58 to rotate in a certain direction, thereby causing the swing arm 58 to move. It is swung from the retracted position (solid line position) in FIG. 2 to the dotted line position in FIG. As a result, the pressing roller 37 is pressed against the surface 21 a of the recording material receiving base 21. At this time, the force with which the pressing roller 37 is pressed against the surface 21a of the recording material receiving base 21 is a constant force determined by the load of the torque limiter 77, the spring force of the coil spring 78, and the like, and is a stable force.
[0042]
On the other hand, when the electromagnetic clutch 71 is turned off, the connection between the drive shaft 70 and the drive source (not shown) is cut off, and the rotation of the drive shaft 70 is stopped, the swing arm 58 is moved by the spring force of the coil spring 78 in FIG. 2 is swung from the dotted line position to the retracted position (solid line position) in FIG. 2, and the pressing roller 37 moves away from the surface of the recording material receiving base 21 and returns to the original retracted position (solid line position in FIG. 2).
[0043]
By adopting such a configuration of the present embodiment, the pressing roller 37 can be brought into contact with the recording material with a constant force, so that the recording material can be appropriately conveyed. Further, according to the configuration of the present embodiment, if the drive shaft 70 is rotated, the pressing roller 37 can be brought into contact with the recording material, and if the driving shaft 70 is stopped, the pressing roller 37 is separated from the recording material. Therefore, a member such as a solenoid for driving the swing arm 58 becomes unnecessary, and the cost can be reduced.
[0044]
[Fourth Embodiment]
FIG. 6 shows a fourth embodiment of the present invention, and shows a mode in which a pressing member 80 processed by sheet metal is used in place of the pressing member 40 formed of the film-like plastic in FIG. Is.
[0045]
As shown in FIG. 6, the pressing member 80 according to the present embodiment is attached so that a fulcrum portion 81 located at an intermediate portion thereof can swing through a support pin 83 on a support member 82 fixed to the housing 4. It has been. The pressing member 80 has both sides bent downward in the figure with the fulcrum portion 81 as a boundary, and the bent left portion 84 is a recording material pressing portion that presses the recording material against the recording material cradle 21. The right side portion 85 is a weight portion that generates a turning force in the clockwise direction in the drawing. Note that the front end of the left side portion 84 is bent so that the contact surface with the recording material becomes an arc surface so as not to damage the recording material when contacting the front end portion of the recording material. The tip of the right side portion 85 is bent, and a weight 86 is fixed to the bent portion 85a. Here, the force with which the pressing member 80 (left side portion 84) presses the recording material is optimally adjusted by adjusting the fulcrum position of the pressing member 80, the plate thickness and shape of the pressing member 80, the weight of the weight 86, and the like. Can be The weight 86 may be fixed to the right portion 85 as necessary, and may be omitted.
[0046]
Since the pressing member 80 having such a configuration does not change with time the force for pressing the recording material and can adjust the magnitude of the force for pressing the recording material, the recording material can be adjusted by the elastic force of the film-like plastic. Compared with the pressing member 40 for pressing the recording material, the recording material can be pressed with a stable force over a long period of time, and the recording material can be conveyed more stably.
[0047]
[Other embodiments]
Further, the intermediate tray 20 of the present invention is not limited to the recording material processing apparatus 1 and can also be applied as an intermediate tray of an image forming apparatus such as a copying machine or a printer configured to be able to form an image on both sides of the recording material P. . When the intermediate tray 20 of the present invention is used as an intermediate tray for double-sided printing in an image forming apparatus, the recording material processing aligning means 41 and the stapler 44 are removed and applied.
[0048]
The present invention is not limited to the above-described embodiment in which the recording material P on the intermediate tray 20 is stapled. Instead of the stapling processing, the recording material bundle is clipped, or the recording material bundle is removed. Widely applied to tape binding. In other words, the recording material processing means is not limited to the stapler 44.
[0049]
In the above-described embodiment, a rubber ring-shaped portion or a rubber protrusion may be formed on the outer periphery of the plastic pressing roller 37 to increase the conveying force of the pressing roller 37.
[0050]
【The invention's effect】
As described above, the intermediate tray according to the present invention has a movable member that moves the rear end of the recording material away from the nip portion of the carry-in roller pair to the recording material cradle side when the recording material is carried onto the recording material cradle. When the recording material on the recording material cradle is pushed in and discharged by the recording material moving means, the distance between the movable material and the recording material cradle is set so that the movable member suppresses the lifting of the recording material. Therefore, it is possible to prevent the recording material from being bent or jammed when the recording material is carried in and out of the recording material receiving tray.
[0051]
In addition, the intermediate tray of the present invention holds the recording material on the recording material cradle with a pressing roller and conveys the recording material at the leading end of the recording material so as to come into contact with the receiving member. Since the rising of the tip is pressed by a film-like pressing member, the recording material can be accommodated on the recording material receiving base in a state where the tip of the recording material is accurately positioned.
[0052]
Further, since the recording material processing apparatus of the present invention includes the intermediate tray as described above, the recording material can be prevented from being bent or jammed, and the recording material processing means can accurately process the recording material. .
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a recording material processing apparatus.
FIG. 2 is a partially enlarged view showing an embodiment of a recording material processing apparatus.
FIG. 3 is a schematic structural diagram of the intermediate tray when the intermediate tray is viewed from a direction perpendicular to the recording material cradle.
FIG. 4 is a partially enlarged view showing a second embodiment of the recording material processing apparatus.
FIG. 5 is a view showing a pressing roller driving mechanism according to a third embodiment of the present invention.
FIG. 6 shows a pressing member according to a fourth embodiment of the present invention.
FIG. 7 is a partial configuration diagram of a conventional recording material processing apparatus.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Recording material processing apparatus, 15 ... Recording material conveyance path, 20 ... Intermediate tray, 21 ... Recording material receptacle, 22, 23, 24, 25 ... Recording material carrying means, 26, 27, 28, 33... Pair of carry-in rollers, 30, 31, 32... Movable guide member (movable member), 35 .. tapping member (movable member), 37 .. press roller, 38 .. receiving member, 40, 80. Members 41... Alignment means 44. Stapler (recording material processing means) 45. Recording material moving means P P. recording material

Claims (3)

記録材搬送路の途中に配置されて、その記録材搬送路に沿って搬送される記録材を一時的に収容する記録材受け台と、
記録材のサイズに対応するように、前記記録材搬送路に沿って複数配置され、対応するサイズの記録材を前記記録材受け台上に搬入する記録材搬入手段と、
前記記録材受け台上の記録材を前記記録材受け台上から排出する記録材移動手段と、を備えた中間トレイであって、
前記記録材搬入手段が、前記記録材を前記記録材受け台上に送り込む搬入ローラ対と、この搬入ローラ対のニップ部から離れた記録材の後端を記録材受け台側へ押し込む可動部材とを有し、
前記可動部材は、前記記録材移動手段が前記記録材を前記記録材受け台上から排出する際に、前記記録材受け台との間隔を前記搬入ローラ対と前記記録材受け台との間隔よりも狭くして、前記記録材の浮き上がりを押さえることを特徴とする中間トレイ。
A recording material cradle that is disposed in the middle of the recording material conveyance path and temporarily stores the recording material conveyed along the recording material conveyance path;
A plurality of recording materials arranged along the recording material conveyance path so as to correspond to the size of the recording material, and a recording material carrying means for carrying a recording material of a corresponding size onto the recording material receiving table;
A recording material moving means for discharging the recording material on the recording material cradle from the recording material cradle, and an intermediate tray comprising:
The recording material carrying means includes a pair of carry-in rollers that feeds the recording material onto the recording material cradle, and a movable member that pushes the rear end of the recording material away from the nip portion of the carry-in roller pair to the recording material cradle side. Have
When the recording material moving means discharges the recording material from the recording material cradle, the movable member has an interval between the recording material cradle and an interval between the carry-in roller pair and the recording material cradle. An intermediate tray characterized in that the recording material is lifted down to prevent the recording material from rising.
前記記録材受け台に前記記録材搬入手段によって送り込まれた記録材の先端を受け止めて位置決めする受け止め部材と、
前記記録材受け台上に送り込まれた記録材の浮き上がりを押さえると共に、前記受け止め部材に記録材の先端が当接するように記録材を搬送する押さえコロと、
前記受け止め部材に取り付けられ、前記記録材受け台上に前記記録材搬入手段によって送り込まれた記録材の先端の浮き上がりを押さえる押さえ部材と、
を備えたことを特徴とする請求項1記載の中間トレイ。
A receiving member for receiving and positioning the leading end of the recording material sent to the recording material receiving base by the recording material carrying means;
A pressing roller for holding the recording material fed onto the recording material cradle and conveying the recording material so that a tip of the recording material contacts the receiving member;
A pressing member that is attached to the receiving member and holds down the tip of the recording material fed by the recording material carrying means onto the recording material cradle;
The intermediate tray according to claim 1, further comprising:
請求項1又は2に記載の中間トレイと、この中間トレイに収容された記録材を整合する整合手段と、この整合手段によって整合された記録材に所望の処理を施す記録材処理手段と、を備えたことを特徴とする記録材処理装置。  The intermediate tray according to claim 1, an alignment unit that aligns the recording material accommodated in the intermediate tray, and a recording material processing unit that performs a desired process on the recording material aligned by the alignment unit. A recording material processing apparatus comprising the recording material processing apparatus.
JP2001398303A 2001-03-30 2001-12-27 Intermediate tray and recording material processing apparatus Expired - Fee Related JP3701904B2 (en)

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JP2001-102718 2001-03-30
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