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. 05, 2011
Filed:
Aug. 20, 2007
Hitoshi Takaki, Kyoto, JP;
Yusuke Iwai, Kyoto, JP;
Tomoya Uchimura, Kyoto, JP;
Satoru Kuramoto, Kyoto, JP;
Hitoshi Takaki, Kyoto, JP;
Yusuke Iwai, Kyoto, JP;
Tomoya Uchimura, Kyoto, JP;
Satoru Kuramoto, Kyoto, JP;
Nidec Corporation, Kyoto, JP;
Abstract
A claw member includes at a radially inward surface thereof a protrusion inclined surface in order to minimize deformation occurring in an axial direction to an elastic member which is a coil spring. The protrusion inclined surface is preferably inclined, when a tip portion of the claw member is at an axially lowest point, to be substantially perpendicular to the central axis, or such that the further radially inward a portion thereof is the axially lower the portion is. By virtue of such configuration, the protrusion inclined surface minimizes deformation occurring to the elastic member in the axial direction.