The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Mar. 13, 2018
Daisuke Imaki, Tokyo, JP;
Yohei Osanai, Kanagawa, JP;
Genta Hagiwara, Kanagawa, JP;
Masatoshi Ishida, Kanagawa, JP;
Tatsuaki Nagano, Kanagawa, JP;
Satoshi Narai, Kanagawa, JP;
Toshiyuki Horikawa, Kanagawa, JP;
Yasunobu Youda, Kanagawa, JP;
Takayuki Andoh, Kanagawa, JP;
Kaoru Tada, Kanagawa, JP;
Daisuke Imaki, Tokyo, JP;
Yohei Osanai, Kanagawa, JP;
Genta Hagiwara, Kanagawa, JP;
Masatoshi Ishida, Kanagawa, JP;
Tatsuaki Nagano, Kanagawa, JP;
Satoshi Narai, Kanagawa, JP;
Toshiyuki Horikawa, Kanagawa, JP;
Yasunobu Youda, Kanagawa, JP;
Takayuki Andoh, Kanagawa, JP;
Kaoru Tada, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A rotation drive device includes a driven rotation member, a driving rotation member, a rotation relay member, a shaft, and a holder. The rotation relay member transmits only a unidirectional rotational driving force from the driving rotation member to the driven rotation member. The rotation relay member includes a housing and a cylindrical one-way clutch. A contact portion between the driving rotation member and the shaft is configured to rotate the driving rotation member and the shaft to transmit the driving force to an inner peripheral side of the cylindrical one-way clutch via the shaft. The driving rotation member includes a boss projected toward the holder and rotatably held in the holder. A portion of the shaft to support the driving rotation member and an inner wall surface of a through hole of the driving rotation member are shaped to rotate the shaft and the driving rotation member. together.