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.:

US 7530439 B1

PDF
Full Text
Expired
Date of Patent:
May. 12, 2009

Filed:

Mar. 17, 2005
Applicants:

Mitsuru Yamada, Tokyo, JP;

Yutaka Fukuchi, Yokohama, JP;

Yuji Arai, Kawasaki, JP;

Inventors:

Mitsuru Yamada, Tokyo, JP;

Yutaka Fukuchi, Yokohama, JP;

Yuji Arai, Kawasaki, JP;

Assignee:

Ricoh Company, Ltd., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16H 57/00 (2006.01); F16H 1/20 (2006.01); F16D 59/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A drive device includes a first shaft, a second shaft disposed at a position deviated from a shaft line of the first shaft, a drive source that drives the first shaft to rotate, and a drive force transmitting unit connecting the first shaft to the second shaft via the drive force transmitting unit to transmit a drive force of the drive source from the first shaft to the second shaft. The drive force transmitting unit includes a reverse preventing mechanism that prevents the first shaft from being rotated in a reverse direction. The reverse preventing mechanism includes a one-way clutch, and the drive force transmitting unit further includes a reduction mechanism that reduces a rotational speed of the one-way clutch to be lower than a rotational speed of the first shaft.


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