US 8,616,548 B2Granted

Sheet conveying device and image forming apparatus

AssigneeCanon Kabushiki Kaisha

InventorsKenji Watanabe, Minoru Kawanishi, Motohiro Furusawa, Hiroki Yamaguchi, Shigeo Murayama

Life of this patent

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Abstract

A sheet conveying device includes a blocking member having a blocking surface with which a leading end of a sheet that is being conveyed comes into contact for obliquity correction. The blocking member is rotated by being pushed by the sheet against an urging force of a positioning unit that positions the blocking member to be in the standby position. The blocking member is rotatable to be in a sheet-passage-allowing orientation in which the sheet is allowed to pass. When a trailing end of the sheet that is being conveyed has passed the blocking member, the blocking member that is in the sheet-passage-allowing orientation rotates in a same direction as a sheet conveyance direction and is positioned to be in a standby position.

Claims13

Dependent claims

A sheet conveying device

including a conveying section for conveying a sheet and configured to correct obliquity of a sheet conveyed by the conveying section, the sheet conveying device comprising:
a contacting portion with which a leading end of the sheet conveyed by the conveying section comes into contact at a waiting position and configured to rotate in a predetermined rotating direction;
a rotating portion connected to the contacting portion in such a way as to rotate with the contacting portion and including a concave portion;
and
a pressing portion configured to press the rotating portion,
wherein the pressing portion is engaged with the concave portion of the rotating portion so as to hold the contacting portion at the waiting position, and
wherein the contacting portion rotates in the predetermined rotating direction to the waiting position where a next sheet comes into contact with the contacting portion after the leading end of the sheet comes into contact with the contacting portion at the waiting position.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 13/693,732Filed 4 Dec 2012 · continuation
Priority: WO PCT/JP2009/06807820 Oct 2009
Published: US 2013/0087968 A111 Apr 2013
Granted: 31 Dec 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

B65H 9/06
Registering, e.g. orientating, articles; Devices therefor: movable stops or gauges, e.g. rising and falling front stops
B65H 5/06
Feeding articles separated from piles; Feeding articles to machines: by rollers or balls, e.g. between rollers
B65H 9/002
Registering, e.g. orientating, articles; Devices therefor: changing orientation of sheet by only controlling movement of the forwarding means,…
B65H 9/004
Registering, e.g. orientating, articles; Devices therefor: deskewing sheet by abutting against a stop, i.e. producing a buckling of the sheet

Family

Application12/904,021Parent of this continuation · filed 13 Oct 2010
US 2013/0087968 A1Pre-grant publication · published 11 Apr 2013
US 8,342,519 B2Parent of this continuation
US 2011/0089628 A1Published application
US 8,616,548 B2This patent

From the US filing history. Foreign family members aren’t listed.