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:
Oct. 24, 2017
Filed:
Nov. 10, 2016
Toshiyuki Horikawa, Kanagawa, JP;
Yasunobu Youda, Kanagawa, JP;
Yohei Osanai, Kanagawa, JP;
Tatsuaki Nagano, Kanagawa, JP;
Satoshi Narai, Kanagawa, JP;
Takuji Kawai, Kanagawa, JP;
Daisuke Imaki, Tokyo, JP;
Takayuki Andoh, Kanagawa, JP;
Susumu Miyazaki, Tokyo, JP;
Yuki Fujii, Kanagawa, JP;
Koichi Ono, Kanagawa, JP;
Takeshi Shikama, Kanagawa, JP;
Hiroaki Ikeda, Tokyo, JP;
Shingo Shiramura, Kanagawa, JP;
Hideo Tanaka, Kanagawa, JP;
Tetsuo Inui, Kanagawa, JP;
Toshiyuki Horikawa, Kanagawa, JP;
Yasunobu Youda, Kanagawa, JP;
Yohei Osanai, Kanagawa, JP;
Tatsuaki Nagano, Kanagawa, JP;
Satoshi Narai, Kanagawa, JP;
Takuji Kawai, Kanagawa, JP;
Daisuke Imaki, Tokyo, JP;
Takayuki Andoh, Kanagawa, JP;
Susumu Miyazaki, Tokyo, JP;
Yuki Fujii, Kanagawa, JP;
Koichi Ono, Kanagawa, JP;
Takeshi Shikama, Kanagawa, JP;
Hiroaki Ikeda, Tokyo, JP;
Shingo Shiramura, Kanagawa, JP;
Hideo Tanaka, Kanagawa, JP;
Tetsuo Inui, Kanagawa, JP;
RICOH COMPANY LTD., Tokyo, JP;
Abstract
An automatic document feeder that is included in an image reader of an image forming apparatus includes a sheet conveying roller, a document feeder cover, a projection piece, a motor, a driving side gear, and a driving force transmission device including an idler gear, a driving force release gear, a slide body, a first elastic body to bias the idler gear and the driving force release gear to be separated, a second elastic body to bias the driving force release gear and the slide body to be separated, and a drive shaft. The driving force transmission device meshes the driving and driven side meshing portions together with a biasing force applied by the second elastic body when the document feeder cover is closed, and releases the driving and driven side meshing portions with a biasing force applied by the first elastic body when the document feeder cover is opened.