Invention Grant
US09073722B2 Sheet ejection device, and image forming apparatus and post-processing apparatus that are provided therewith
有权
纸张排出装置以及与其一起提供的图像形成装置和后处理装置
- Patent Title: Sheet ejection device, and image forming apparatus and post-processing apparatus that are provided therewith
- Patent Title (中): 纸张排出装置以及与其一起提供的图像形成装置和后处理装置
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Application No.: US14372205Application Date: 2012-11-12
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Publication No.: US09073722B2Publication Date: 2015-07-07
- Inventor: Masakazu Uehara
- Applicant: KYOCERA Document Solutions Inc.
- Applicant Address: JP Osaka
- Assignee: KYOCERA Document Solutions Inc.
- Current Assignee: KYOCERA Document Solutions Inc.
- Current Assignee Address: JP Osaka
- Agency: Stein IP, LLC
- Priority: JP2012-008988 20120119
- International Application: PCT/JP2012/079198 WO 20121112
- International Announcement: WO2013/108467 WO 20130725
- Main IPC: B65H29/22
- IPC: B65H29/22 ; B65H29/14 ; B65H29/06 ; B65H29/12
Abstract:
A sheet ejection device comprises an ejection roller pair (20) which ejects a sheet by a pressure contact portion (N) in which a first roller (21) and a second roller (22) are in pressure contact with each other. In the first roller (21), protrusions (41) that protrude in a roller diameter direction in order to push the back end of the sheet ejected with the rotation of the first roller (21) are formed. The protrusions (41) are provided in a flange (45) at a predetermined distance from the peripheral end (43a) of a cylindrical portion (42) of the first roller (21) in a sheet width direction. The distance from the center of rotation of the flange (45) to the front end (41c) of each of the protrusions (41) is equal to or less than the radius of the cylindrical portion (42).
Public/Granted literature
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