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. 09, 2007
Filed:
Jun. 04, 2004
Taku Itagaki, Shizuoka-ken, JP;
Tatsuro Sugiyama, Shizuoka-ken, JP;
Tatsuhiro Goto, Shizuoka-ken, JP;
Shintaro Suzuki, Shizuoka-ken, JP;
Taku Itagaki, Shizuoka-ken, JP;
Tatsuro Sugiyama, Shizuoka-ken, JP;
Tatsuhiro Goto, Shizuoka-ken, JP;
Shintaro Suzuki, Shizuoka-ken, JP;
NTN Corporation, Osaka, JP;
Abstract
In a no-flange type outer joint member, the amount of abrasion in a large inner diameter portion formed for a track groove is intended to be restrained. In a tripod type constant velocity universal joint including: a no-flange type outer joint member; and a roller assembly including a roller, being attached to a trunnion so as to be capable of oscillating, hardened layers are formed on portions of a large inner diameter portion of the outer joint member, which are in contact with an inclined roller assembly. In this case, a value of F/D is set equal to or less than 0.45, where a distance from a center of the track groove of the outer joint member to the ends of both the hardened layers on the side of the center of the track groove is F, and a diameter of an outer circumference of the roller assembly is D.