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:
Aug. 28, 2001
Filed:
Apr. 20, 2000
Yoshihiko Hayama, Shizuoka-ken, JP;
Haruo Nagatani, Shizuoka-ken, JP;
NTN Corporation, Osaka, JP;
Abstract
In an inner joint member (,) that has eight guide grooves (,) formed to extend in the axial direction located at equal intervals in the circumferential direction on the outer circumference (,) of spherical shape and a fitting portion (,) provided on the inner circumference for the purpose of coupling with a stub shaft, ratio of width W between the center of curvature O,of the outer circumference (,) of spherical shape and the end face to the pitch circle diameter Ds of the fitting portion (,) is set as W/D,>0.27, thereby making it possible for a plunging constant velocity universal joint for propeller shaft of the vehicle to be lighter in weight, more compact and is capable of contributing to the improvement of the NVH characteristic of the vehicle.