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:
Feb. 04, 2014
Filed:
Aug. 29, 2011
Naoyuki Kokubo, Nukata-gun, JP;
Naoyuki Kokubo, Nukata-gun, JP;
JTEKT Corporation, Osaka-shi, JP;
Abstract
A driving force transmission apparatus includes: a front housing and an inner shaft coaxially with each other and rotatable relative to each other; a main clutch transmitting torque between the front housing and the inner shaft; and a cam mechanism having a main cam and a pilot cam and using the main cam to press the main clutch. Where a circumferential gap angle between each spline tooth of the front housing and a corresponding first protrusion of outer clutch plates is θ1, a circumferential gap angle between each spline tooth of the inner shaft and a corresponding protrusion of inner clutch plates is θand a circumferential gap angle between each spline tooth of the inner shaft and a corresponding protrusion of the main cam is θ, the inequality θ+θ−θ≧1.0° is satisfied.