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. 24, 2001
Filed:
Jul. 07, 1999
Hiroshi Mizukami, Neyagawa, JP;
Exedy Corporation, Osaka, JP;
Abstract
A clutch disk assembly includes an input rotary member,, an output rotary member,, damper mechanisms,and,, a friction mechanism,and a friction suppressing mechanism. Damper mechanisms,and,include a plurality of elastic members,and,which are arranged between the input and output rotary members,and,and are circumferentially compressed when the members,and,rotate relatively to each other. The damper mechanisms,and,exhibit torsion characteristics in a first region and a second region of relative rotary displacement where the dampening rigidity within the second region is greater than in the first region. The friction mechanism,is adapted to generate frictional resistance (hysteresis torque) in the second region of the relative rotary displacement within the clutch disk assembly. A friction suppressing mechanism stops operation of the friction mechanism,in response to vibrations having only a magnitude that creates relative rotary displacement within a limited predetermined angular displacement range within the larger second region.