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. 30, 2006
Filed:
Jan. 28, 2004
Hisaaki Kura, Shizuoka-ken, JP;
Kenji Terada, Shizuoka-ken, JP;
Tatsuhiro Goto, Shizuoka-ken, JP;
Akio Sakaguchi, Shizuoka-ken, JP;
Shigeyoshi Ishiguro, Shizuoka-ken, JP;
Kazuhiko Yoshida, Shizuoka-ken, JP;
Tatsuro Sugiyama, Shizuoka-ken, JP;
Hisaaki Kura, Shizuoka-ken, JP;
Kenji Terada, Shizuoka-ken, JP;
Tatsuhiro Goto, Shizuoka-ken, JP;
Akio Sakaguchi, Shizuoka-ken, JP;
Shigeyoshi Ishiguro, Shizuoka-ken, JP;
Kazuhiko Yoshida, Shizuoka-ken, JP;
Tatsuro Sugiyama, Shizuoka-ken, JP;
NTN Corporation, Osaka, JP;
Abstract
An annular support ringis fitted onto the outer periphery of each trunnion. This support ringand the rollerare unitized via a plurality of needle rollersto constitute a roller assembly capable of relative rotations therebetween. In longitudinal section, each trunnionhas an outer periphery of straight shape, parallel to the axis of the trunnion. In cross section, the trunnionhas a generally ellipse shape with the major axis orthogonal to the axis of the joint. The inner periphery of each support ringis arcuate and convex in section. This combines with the general elliptic cross sections of the trunnionsand the provision of predetermined clearances between the trunnionsand the support rings, to allow the support ringsto move along the axial directions of the trunnionsas well as make tilting movements with respect to the trunnions