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. 06, 2001
Filed:
Feb. 07, 2000
Yoshitaka Nakagawa, Osaka, JP;
Hajime Tazumi, Osaka, JP;
Tadahiro Terada, Nara, JP;
Hideki Fujiwara, Nara, JP;
Koyo Seiko Co., Ltd., Osaka, JP;
Abstract
A one-way clutch has rollers individually disposed in wedge-shaped spaces formed at positions along a circumference between an inner annular body and an outer annular body which are disposed concentrically. The wedge angle of each wedge-shaped space is fixed at a preferred value. As a result, an engagement position of the roller becomes shallow when the roller is positioned on a narrower side of the wedge-shaped space and gaps between the roller and the inner and outer annular bodies become small when the roller is positioned on a wider side of the wedge-shaped space. Therefore, the rollers move smoothly when switching between the lock state and the free state.