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:
Jul. 14, 2015
Filed:
Apr. 14, 2010
Fusahiro Tsukano, Susono, JP;
Hiroyuki Amano, Susono, JP;
Shinichiro Suenaga, Susono, JP;
Yu Miyahara, Susono, JP;
Fusahiro Tsukano, Susono, JP;
Hiroyuki Amano, Susono, JP;
Shinichiro Suenaga, Susono, JP;
Yu Miyahara, Susono, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Abstract
A dynamic damper for attenuating torsional vibration of a rotary member, in which a weighted center of a rolling member is offset from a geometric center to trace an elliptical orbit of a cycloid pendulum. The dynamic damper including, a housing having a rolling surface on its inner surface is formed in a rotary member, and a rolling member held in the housing in a manner to be rolled on the rolling surface by torque pulse exerted on the rotary member. In the dynamic damper, a curvature of the rolling surface is entirely constant, and a radius of the rolling member is smaller than that of the rolling surface. A weighted center of the rolling member is offset from a geometric center thereof. The rolling member is guided by a guiding mechanism to roll on the rolling surface.