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:
Dec. 07, 2004
Filed:
Oct. 29, 2002
Takahiko Ryuzaki, Kanagawa, JP;
Norio Hokari, Kanagawa, JP;
Satoru Nishikawa, Kanagawa, JP;
Susumu Kibayashi, Kanagawa, JP;
Yoshihiko Mitamura, Kanagawa, JP;
Tokuaki Hanzawa, Kanagawa, JP;
Michiaki Yoshihara, Saitama, JP;
Fuji Xerox Co., Ltd., Tokyo, JP;
Abstract
A driving apparatus transmits a driving force from a drive source to a driven body via a multiple-stage gear train (including, for example, gears). In the multiple-stage gear train, the speed fluctuation phase of a mesh frequency occurring at each mesh point of the gear train including the gears to a target gear is set in a range in which the speed fluctuation amplitude of the target gear positioned downstream at the third stage or later is equal to or less than the speed fluctuation amplitude of the immediately preceding mesh gear positioned upstream. The invention also applies to an image formation apparatus using the drive as a drive of a driven body.