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:
Apr. 24, 2001
Filed:
Oct. 21, 1999
Shuichi Nagaya, Hyogo, JP;
Hirofumi Miyata, Hyogo, JP;
Shinichiro Nishikawa, Hyogo, JP;
Masakazu Domoto, Shizuoka, JP;
Masahiko Satoda, Shizuoka, JP;
Other;
Abstract
A pulley with a built-in one-way clutch, the type of which has sprags tilting in a direction to wedge between inner and outer rings while being guided on respective riding lands of a cage by pressing of respective leaf springs, is mounted on an alternator shaft of an alternator to which torque of a crank shaft of a vehicle engine rotating together with slight variations in angular velocity is transmitted through a power transmission belt. In the mounting, a tilting force acting on a contact point at which each sprag contacts the corresponding riding land to tilt the sprag in the wedging direction is set larger than a frictional force between the sprag and the riding land acting on the contact point. According to this setting, the sprag can be tilted in the wedging direction regardless of the frictional force between the sprag and the riding land, thereby eliminating a locking failure within the high engine speed range.