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. 27, 2001
Filed:
Nov. 01, 1999
Shigeyoshi Ishiguro, Shizuoka-ken, JP;
Kenji Terada, Shizuoka-ken, JP;
Yoshimasa Ushioda, Shizuoka-ken, JP;
Akio Sakaguchi, Shizuoka-ken, JP;
Hisaaki Kura, Shizuoka-ken, JP;
Katsuhiro Suzuki, Shizuoka-ken, JP;
Masaru Komatsu, Shizuoka-ken, JP;
NTN Corporation, Osaka, JP;
Abstract
A perpendicular distance (PCR,) between a centerline (L,) including the center (O,) of the outer circumference surface (,) of an outer roller (,), orthogonal to axis Z of a trunnion (,) and a joint center O is shifted by &Dgr;h (=PCR,−PCR,) from a perpendicular distance (PCR,) between a centerline (L,) including the center (O,) of the outer circumference surface (,) of an inner roller (,), orthogonal to axis Z of a trunnion (,) and a joint center O. Under the most favorable conditions, PCR,is shifted by an optimal amount of &Dgr;H from PCR,toward the proximal end of the trunnion, and the position of contact (S) between the inner circumference surface (,) of the outer roller,and the outer circumference surface (,) of the inner roller (,) is located on the centerline (L,) (on PCR,) of the outer circumference surface (,) of the outer roller (,).