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:
May. 26, 1987

Filed:

Jul. 22, 1985
Applicant:
Inventor:

Masahiko Koshimo, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ;
U.S. Cl.
CPC ...
464 63 ; 1921062 ; 464 68 ;
Abstract

A damper assembly for a clutch has an annular cover assembly including a pair of first covers adapted to be connected to a torque input part and a pair of second covers; an annular first hub connected to the second cover; an annular second hub adapted to be connected to a torque output part; a wake first torsion spring mechanism connecting the first covers to the first hub; a strong second spring mechanism connecting the second covers to the second hub; and a stopper mechanism for preventing relative torsion between the first covers and the first hub when a torsion angle between the first covers and the first hub increases to predetermined values at positive and negative rotating directions; the stopper mechanism is so designed that the predetermined values of the torsion angle in the positive rotating direction and the negative rotating direction may be different from each other; and the second torsion spring mechanism includes a plurality of springs arranged in series with floting spacers therebetween.


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