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:
May. 14, 1985
Filed:
Feb. 03, 1982
Applicant:
Inventors:
Hideo Hamano, Toyota, JP;
Yasunori Koga, Toyota, JP;
Assignee:
Toyota Jidosha Kogyo Kabushiki Kaisha, Toyota, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F16H / ; F16D / ;
U.S. Cl.
CPC ...
74711 ; 747105 ; 192 / ; 192 7014 ; 1921 / ; 1921 / ;
Abstract
A restriction device for a differential gear having multiplate clutches which are formed by first friction plates fixed to a pair of side gears installed inside of a differential casing and second friction plates fixed to the differential casing. The first and second friction plates are alternately situated and are in contact with each other, wherein one of the frictional faces of the friction plates is treated by cold rolling while the other is coated with a self-lubricating agent so as to minimize the tendency of increasing differential movement of both side gears.