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.

Date of Patent:
Dec. 25, 2012

Filed:

Mar. 11, 2009
Applicants:

Yoshitsugu Gokan, Wako, JP;

Yoshinobu Shiomi, Wako, JP;

Inventors:

Yoshitsugu Gokan, Wako, JP;

Yoshinobu Shiomi, Wako, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16D 7/00 (2006.01); F16D 23/00 (2006.01); F16D 43/20 (2006.01); F16D 13/42 (2006.01);
U.S. Cl.
CPC ...
Abstract

A multi-plate clutch includes clutch discs which are disposed between a clutch outer and a clutch inner and are movable in an axial direction of the transmission shaft to permit and cut off the transmission of the rotational driving force from a crankshaft to a transmission shaft. A first biasing mechanism is configured to apply a clamping force to the clutch discs. A cam mechanism is configured to adjust the clamping force in accordance with the rotational driving force. A second biasing mechanism is configured to generate a biasing force to separate the clutch discs away from one another and to weaken the clamping force. The cam mechanism is configured to apply to the second biasing mechanism a force against the biasing force generated by the second biasing mechanism in accordance with the rotational driving force.


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