JP2006306536A5 - - Google Patents

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JP2006306536A5
JP2006306536A5 JP2005128755A JP2005128755A JP2006306536A5 JP 2006306536 A5 JP2006306536 A5 JP 2006306536A5 JP 2005128755 A JP2005128755 A JP 2005128755A JP 2005128755 A JP2005128755 A JP 2005128755A JP 2006306536 A5 JP2006306536 A5 JP 2006306536A5
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Prior art keywords
sheet
pressing member
processing apparatus
sheet pressing
sheet processing
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JP2005128755A
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JP4708847B2 (en
JP2006306536A (en
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Priority to JP2005128755A priority Critical patent/JP4708847B2/en
Priority claimed from JP2005128755A external-priority patent/JP4708847B2/en
Publication of JP2006306536A publication Critical patent/JP2006306536A/en
Publication of JP2006306536A5 publication Critical patent/JP2006306536A5/ja
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Claims (15)

搬送されてきたシートを排出する排出部材と、前記排出部材によって排出されたシートを積載する積載部材と、前記積載部材に積載されたシートの上面を押さえるシート押さえ手段とを備えたシート処理装置において、
前記シート押さえ手段は、
前記積載部材上のシートの上面を押さえる回動自在な第１のシート押さえ部材と、
前記第１のシート押さえ部材よりも回動半径が小さく、前記積載部材上のシートの上面のうち、前記第１のシート押さえ部材よりも前記排出部材に近い部分を押さえる回動自在な第２のシート押さえ部材と、を有し、
前記第１のシート押さえ部材と前記第２のシート押さえ部材は、前記排出部材の上方に回動中心を有し、排出されるシートにより押し上げられて上方回動し、
前記第１のシート押さえ部材よりも前記第２のシート押さえ部材が先に排出されたシートと当接して上方回動し、前記第１のシート押さえ部材が排出されたシートと当接した際は前記第２のシート押さえ部材とともに上方回動する、
ことを特徴とするシート処理装置。 A sheet processing apparatus comprising: a discharge member that discharges a conveyed sheet; a stacking member that stacks sheets discharged by the discharge member; and a sheet pressing unit that presses an upper surface of the sheets stacked on the stacking member. ,
The sheet pressing means is
A rotatable first sheet pressing member for pressing the upper surface of the sheet on the stacking member ;
A rotation radius smaller than that of the first sheet pressing member, and a rotatable second that presses a portion of the upper surface of the sheet on the stacking member closer to the discharge member than the first sheet pressing member. possess a sheet pressing member,
The first sheet pressing member and the second sheet pressing member have a rotation center above the discharge member, and are rotated upward by being pushed up by the discharged sheet.
When the second sheet pressing member contacts the sheet discharged earlier than the first sheet pressing member and rotates upward, and the first sheet pressing member contacts the discharged sheet Rotating upward together with the second sheet pressing member;
A sheet processing apparatus. 前記第２のシート押さえ部材は、シート搬送経路を塞いで停止するホームポジションに配置された状態において、シート搬送方向に直角なシート幅方向で、前記排出部材及び前記第１のシート押さえ部材とオーバーラップする、
ことを特徴とする請求項１に記載のシート処理装置。 The second sheet pressing member, in a state of being positioned at the home position to stop blocking the sheet conveying path, at right angles the sheet width direction in the sheet conveying direction, the discharge member and the first sheet press member and the over to wrap,
The sheet processing apparatus according to claim 1. 前記第１のシート押さえ部材と前記第２のシート押さえ部材の位置を検知する位置検知手段を備え、
前記第１のシート押さえ部材と前記第２のシート押さえ部材は、前記位置検知手段の出力に基づいて、前記積載部材上のシートの高さを検知する、
ことを特徴とする請求項１又は２に記載のシート処理装置。 A position detecting means for detecting positions of the first sheet pressing member and the second sheet pressing member;
The first sheet pressing member and the second sheet pressing member detect the height of the sheet on the stacking member based on the output of the position detection means.
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus. 前記第１のシート押さえ部材と前記第２のシート押さえ部材との回動動作を連動させる連動手段を有し、
前記位置検知手段は、前記第２のシート押さえ部材の位置を検知することで、前記連動手段により前記第２のシート押さえ部材と連動する前記第１のシート押さえ部材の位置も検知する、
ことを特徴とする請求項３に記載のシート処理装置。 Interlocking means for interlocking the rotational movements of the first sheet pressing member and the second sheet pressing member;
The position detecting means detects the position of the first sheet pressing member that is interlocked with the second sheet pressing member by the interlocking means by detecting the position of the second sheet pressing member .
The sheet processing apparatus according to claim 3. 前記第１のシート押さえ部材と前記第２のシート押さえ部材は、共通の回動中心を有する、
ことを特徴とする請求項１ないし４のいずれか１項に記載のシート処理装置。 The first sheet pressing member and the second sheet pressing member have a common rotation center.
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus. 前記連動手段は、前記第２のシート押さえ部材の回動中心から遠い先端部に、前記第１のシート押さえ部材に対する係合部を有するとともに、前記係合部が常時、前記第１のシート押さえ部材にオーバーラップしている、
ことを特徴とする請求項４又は５に記載のシート処理装置。 The interlocking means, the far tip from rotation center of the second sheet pressing member, and having an engaging portion with respect to the first sheet pressing member, the engaging portion at all times, the first sheet presser Overlaps the member,
The sheet processing apparatus according to claim 4, wherein the sheet processing apparatus is a sheet processing apparatus. 前記第１のシート押さえ部材と前記第２のシート押さえ部材とは前記排出部材から排出されるシートの先端が当接される当接面をそれぞれ有し、
これら当接面は、前記排出部材から排出されたシートの先端が前記第２のシート押さえ部材の当接面に当接して前記第２のシート押さえ部材が所定の角度だけ回動した後、前記第１のシート押さえ部材の当接面に当接する、
ことを特徴とする請求項１ないし６のいずれか１項に記載のシート処理装置。 The first sheet pressing member and the second sheet pressing member each have a contact surface with which a leading end of a sheet discharged from the discharge member is contacted,
The contact surfaces are configured such that after the leading edge of the sheet discharged from the discharge member contacts the contact surface of the second sheet pressing member and the second sheet pressing member rotates by a predetermined angle, Abuts against the abutment surface of the first sheet pressing member;
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus. 前記第２のシート押さえ部材の前記当接面は、前記第２のシート押さえ部材が所定角度回動後、前記第１のシート押さえ部材が追従する前に、前記第１のシート押さえ部材の前記当接面よりシート搬送方向下流側まで回動可能である、
ことを特徴とする請求項７に記載のシート処理装置。 The abutment surface of the second sheet pressing member is formed on the first sheet pressing member before the first sheet pressing member follows after the second sheet pressing member rotates by a predetermined angle. It can be rotated from the contact surface to the downstream side in the sheet conveying direction.
The sheet processing apparatus according to claim 7. 前記第２のシート押さえ部材は、排出されるシートにより押し上げられて上方回動を開始するのに伴って回動を開始する、
ことを特徴とする請求項１ないし８のいずれか１項に記載のシート処理装置。 The second sheet pressing member starts to rotate as it is pushed up by the discharged sheet and starts to rotate upward .
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus. 前記第１のシート押さえ部材が、シート幅方向に沿って複数配設され、
これら複数の前記第１のシート押さえ部材に対して前記第２のシート押さえ部材が係合関係を有する、
ことを特徴とする請求項１ないし９のいずれか１項に記載のシート処理装置。 A plurality of the first sheet pressing members are disposed along the sheet width direction,
The second sheet pressing member has an engagement relationship with the plurality of first sheet pressing members.
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus. 前記排出部材は、ローラ部が櫛歯状に配置されたローラ対によって構成されている、
ことを特徴とする請求項１ないし１０のいずれか１項に記載のシート処理装置。 The discharge member is constituted by a roller pair in which a roller portion is arranged in a comb-teeth shape,
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus. 前記第２のシート押さえ部材の前記当接面は、前記第１のシート押さえ部材の当接面よりも、シート幅方向の幅が狭い、
ことを特徴とする請求項７ないし１１のいずれか１項に記載のシート処理装置。 The contact surface of the second sheet pressing member is narrower in the sheet width direction than the contact surface of the first sheet pressing member.
The sheet processing apparatus according to claim 7, wherein the sheet processing apparatus is a sheet processing apparatus. 前記第２のシート押さえ部材が、前記第１のシート押さえ部材よりも軽量である、
ことを特徴とする請求項１ないし１２のいずれか１項に記載のシート処理装置。 The second sheet pressing member is lighter than the first sheet pressing member.
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus. 前記第１のシート押さえ部材及び前記第２のシート押さえ部材をシート搬送経路から回動させて退避させる駆動手段を有し、
前記第２のシート押さえ部材の回動角度が前記第１のシート押さえ部材の回動角度よりも大きく設定されている、
ことを特徴とする請求項１ないし１３のいずれか１項に記載のシート処理装置。 Driving means for rotating and retracting the first sheet pressing member and the second sheet pressing member from a sheet conveying path;
The rotation angle of the second sheet pressing member is set larger than the rotation angle of the first sheet pressing member;
The sheet processing apparatus according to claim 1, wherein the sheet processing apparatus is a sheet processing apparatus. シートに画像を形成する画像形成部と、画像形成されたシートを処理する請求項１ないし１４のいずれか１項に記載のシート処理装置、とを備えたことを特徴とする画像形成装置。An image forming apparatus comprising: an image forming unit that forms an image on a sheet; and the sheet processing apparatus according to claim 1 that processes the image-formed sheet.
JP2005128755A 2005-04-26 2005-04-26 Sheet stacking apparatus and image forming apparatus Active JP4708847B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005128755A JP4708847B2 (en) 2005-04-26 2005-04-26 Sheet stacking apparatus and image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005128755A JP4708847B2 (en) 2005-04-26 2005-04-26 Sheet stacking apparatus and image forming apparatus

Publications (3)

Publication Number Publication Date
JP2006306536A JP2006306536A (en) 2006-11-09
JP2006306536A5 true JP2006306536A5 (en) 2008-06-19
JP4708847B2 JP4708847B2 (en) 2011-06-22

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5590739B2 (en) * 2010-11-04 2014-09-17 京セラドキュメントソリューションズ株式会社 Recording medium discharging apparatus and image forming apparatus having the same
JP7163082B2 (en) 2018-06-27 2022-10-31 キヤノン株式会社 Sheet discharge device and image forming device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4065506B2 (en) * 2002-07-30 2008-03-26 キヤノン株式会社 Sheet processing apparatus and image forming apparatus
JP2004115236A (en) * 2002-09-27 2004-04-15 Canon Inc Sheet material full load detecting device and image forming device
JP2005035753A (en) * 2003-07-17 2005-02-10 Canon Inc Sheet stacking device and image processing device

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