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. 05, 2009
Filed:
Apr. 19, 2006
Masaaki Ohashi, Toin, JP;
Tatsuro Sugiyama, Iwata, JP;
Shigeo Kobayashi, Toin, JP;
Satoru Fukuzawa, Toin, JP;
Masaaki Ohashi, Toin, JP;
Tatsuro Sugiyama, Iwata, JP;
Shigeo Kobayashi, Toin, JP;
Satoru Fukuzawa, Toin, JP;
NTN Corporation, Osaka, JP;
Abstract
A constant-velocity joint includes an outer ring formed with a bore defined by six flat surfaces parallel to its axis, and a trunnion member received in the bore of the outer ring. The trunnion member has an outer periphery formed with three first spherical surfaces circumferentially spaced apart from each other and three second spherical surfaces circumferentially spaced apart from each other and each disposed between adjacent first spherical surfaces. Each first spherical surface is in contact with one of the flat surfaces at a point offset from the circumferential center of the flat surface in one circumferential direction. Each second spherical surface is in contact with another flat surface at a point offset from the circumferential center of the flat surface in the other circumferential direction. At least one of the outer ring and the trunnion member is made of a synthetic resin.