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:
Jan. 06, 2009
Filed:
Mar. 17, 2006
Junichi Izumino, Iwata, JP;
Minoru Ishijima, Iwata, JP;
Junichi Izumino, Iwata, JP;
Minoru Ishijima, Iwata, JP;
NTN Corporation, Osaka-shi, JP;
Abstract
The present invention provides a lightweight, compact, and low-cost tripod type constant velocity universal joint while maintaining strength of overall tripod type constant velocity universal joint. The dimensional ratio of each component of the tripod type constant velocity universal joint is set as follows: 0.80<Dor<0.90, 0.105<Tor<0.115, 0.025<fir<0.045, 0.025<t<0.075, 0.53<Dir<0.63, 0.065<Tir<0.085, 0.32<Dj<0.42, and 0.32<Dj<0.35. In this event, the subscript 'r' means that each dimension is divided by the trunnion journal pitch circle diameter D (=PCD) of the joint.