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:
Dec. 18, 1990
Filed:
Dec. 08, 1988
Yasuyoshi Yasui, Toyota, JP;
Norihisa Iguchi, Toyota, JP;
Abstract
A limited slip differential includes a differential case, a pair of side gears formed of spiral bevel gears and disposed in the differential case, a plurality of pinions formed of spiral bevel gears meshing with the side gears, supported by shaft portions of a spider and disposed in the differential case and a frictional force generator by which a differential motion generated between shafts respectively coupled with the side gears is limited. The limited slip differential further includes a member for preventing the spider from wear resulting from such constitution of side gears and pinions that the tooth surfaces on which each of the pinions meshes with the pair of side gears constitute a concave with respect to the tooth of the side gear on one side and a convex with respect to the tooth of the side gear on the other side.