Invention Grant
US07921438B2 Chucking mechanism, brushless motor having the chucking mechanism, and disk driving apparatus having the brushless motor
有权
卡盘机构，具有卡盘机构的无刷马达，以及具有无刷马达的盘驱动装置
- Patent Title: Chucking mechanism, brushless motor having the chucking mechanism, and disk driving apparatus having the brushless motor
- Patent Title (中): 卡盘机构，具有卡盘机构的无刷马达，以及具有无刷马达的盘驱动装置
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Application No.: US11841340Application Date: 2007-08-20
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Publication No.: US07921438B2Publication Date: 2011-04-05
- Inventor: Hitoshi Takaki , Yusuke Iwai , Tomoya Uchimura , Satoru Kuramoto
- Applicant: Hitoshi Takaki , Yusuke Iwai , Tomoya Uchimura , Satoru Kuramoto
- Applicant Address: JP Kyoto
- Assignee: Nidec Corporation
- Current Assignee: Nidec Corporation
- Current Assignee Address: JP Kyoto
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2006-224558 20060821
- Main IPC: G11B17/03
- IPC: G11B17/03 ; G11B17/028 ; G11B19/20
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.
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