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:
Oct. 04, 2011
Filed:
Nov. 25, 2008
Atsushi Ando, Kariya, JP;
Tomohiko Sato, Toyota, JP;
Takumi Matsumoto, Nishikamo-gun, JP;
Takeo Yamamoto, Nissin, JP;
Atsushi Ando, Kariya, JP;
Tomohiko Sato, Toyota, JP;
Takumi Matsumoto, Nishikamo-gun, JP;
Takeo Yamamoto, Nissin, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Abstract
A constant velocity universal joint is provided, having a hollow outer joint member, an inner joint member, an outer roller including a cylindrical surface, an inner roller including a concave sphere, and plural leg shafts each including a convex sphere formed in a tip portion and engaging with the concave sphere, where the cylindrical surface of the outer roller satisfies the following:1>(1−cos θ)/2+μ+μ12>3(1−cos θ)/2−μ+μ1,where Windicates a length of the cylindrical surface from a center of the leg shaft and an intersection of the cylindrical surface and an upper side taper portion of the outer roller, Windicates a length of the cylindrical surface from the center of the leg shaft and an intersection of the cylindrical surface and a lower side taper portion of the outer roller, and θ indicates a maximum joint angle.