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:
Jun. 16, 1998

Filed:

Aug. 28, 1996
Applicant:
Inventors:

Hiroyuki Nishiyama, Fuji, JP;

Fumikazu Takaoka, Fuji, JP;

Kiyokazu Tanaka, Fuji, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16D / ; F16D / ;
U.S. Cl.
CPC ...
192 / ; 192 7017 ; 192 / ; 188 715 ;
Abstract

An engaging apparatus is provided that includes: outer and inner support members having respective splines that are opposed to each other in a radial direction thereof, and being rotatable relative to each other; a plurality of outer friction plates engaging with the spline of the outer support member; a plurality of inner friction plates alternately superposed on the outer friction plates and engaging with the spline of the inner support member; and a hydraulic piston mechanism for compressing a stack of the outer and inner friction plates. A spring member is inserted between circumferentially opposed faces of a driven set of the friction plates and a spline of the corresponding support member. The spring member is formed by bending an elastic material at an axially intermediate point thereof to have a long side and a short side with a circumferential spacing left therebetween. The long side supports the driven plates, and the end portion of the short side is supported by a side wall of the spline at a point that is approximately aligned with an axially middle portion of a region of said long side, which region supports the driven plates.


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