Invention Grant
- Patent Title: Paper feed roller
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Application No.: US15136049Application Date: 2016-04-22
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Publication No.: US09790041B2Publication Date: 2017-10-17
- Inventor: Kuniaki Doi , Atsuhiro Kawano , Yuma Yoshida
- Applicant: SUMITOMO RIKO COMPANY LIMITED
- Applicant Address: JP Komaki-shi
- Assignee: SUMITOMO RIKO COMPANY LIMITED
- Current Assignee: SUMITOMO RIKO COMPANY LIMITED
- Current Assignee Address: JP Komaki-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2013-225863 20131030
- Main IPC: B65H3/06
- IPC: B65H3/06 ; F16C13/00 ; B65H5/06

Abstract:
A paper feed roller 1 is used in a paper feeding unit in an electrophotographic image forming device. The paper feed roller 1 includes a non-foamed elastic body 2 having an embossed surface 21 including crest-like parts 211 and valley-like parts 212. The embossed surface 21 has many dimple parts 213 recessed inward on bottom surfaces of the valley-like parts 212 or on the bottom surfaces and lateral surfaces of the valley-like parts 212, and does not have the many dimple parts 213 on top parts of the crest-like parts 211. A diameter of the dimple parts 213 can be set to be 1 to 100 μm and an arithmetic average height Ra of the embossed surface 21to be 3 to 50 μm.
Public/Granted literature
- US20160236882A1 PAPER FEED ROLLER Public/Granted day:2016-08-18
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