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:
Feb. 08, 2011

Filed:

Sep. 20, 2007
Applicants:

Toshiaki Takamura, Saitama, JP;

Shinji Takayanagi, Saitama, JP;

Makoto Igarashi, Saitama, JP;

Inventors:

Toshiaki Takamura, Saitama, JP;

Shinji Takayanagi, Saitama, JP;

Makoto Igarashi, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D 7/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

To realize the reduction of weight of a power transmission device by overcoming a drawback that an excessively large rotational torque is transmitted to a power transmission path and to sufficiently suppress the generation of a change of a rotational speed by overcoming a drawback that phases between one universal joint and another universal joint are displaced from each other. A damper mechanism is provide in the course of a power transmission path from an engine to a final reduction gear. The damper mechanism transmits a torque from the engine until the torque arrives at a predetermined value and prevents the transmission of a torque that exceeds the predetermined value.


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