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:
Nov. 05, 2002
Filed:
Dec. 04, 2000
Hisaaki Kura, Iwata, JP;
Tatsuro Sugiyama, Iwata, JP;
Masayuki Kuroda, Osaka, JP;
Kenji Terada, Iwata, JP;
NTN Corporation, Osaka, JP;
Abstract
A constant velocity universal joint with a further reduction in inductive thrust and slide resistance. The constant velocity universal joint comprises: an outer joint member having three track grooves each having circumferentially-opposed roller guideways ; a tripod member having three radially-projecting trunnions ; a roller inserted in each of the track grooves ; and a ring fitted on each of the trunnions to support the roller rotatably, the roller being movable in axial directions of the outer joint member along the roller guideways . Here, the inner periphery of the ring is shaped arcuate and convex in section. The outer periphery of each of the trunnions is shaped straight in longitudinal section, as well as formed in cross section so as to make a contact with the inner periphery of the ring along a direction perpendicular to the axis of the joint and create a clearance with the inner periphery of the ring in an axial direction of the joint.