发明申请
- 专利标题： Clamp ring and disc drive having the same
- 专利标题（中）： 夹环和磁盘驱动器具有相同的功能
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申请号： US11452961申请日： 2006-06-15
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公开(公告)号： US20070230039A1公开(公告)日： 2007-10-04
- 发明人: Yoshiaki Koizumi , Misao Inoke , Masaya Suwa , Rikako Shinomiya
- 申请人： Yoshiaki Koizumi , Misao Inoke , Masaya Suwa , Rikako Shinomiya
- 申请人地址： JP Kawasaki
- 专利权人： FUJITSU LIMITED
- 当前专利权人： FUJITSU LIMITED
- 当前专利权人地址： JP Kawasaki
- 优先权： JP2006-089716 20060329
- 主分类号： G11B17/02
- IPC分类号： G11B17/02
摘要：
A clamp ring that clamps a disc onto a spindle motor that rotates the disc includes an annular disc shaped body fixed onto a hub that rotates with a shaft of the spindle motor, the body arranging plural screw holes in a circumferential direction of the body, a screw that fixes the body onto the hub being inserted into each screw hole, wherein the body arranges plural stress relaxation holes between the plural screw holes so that each stress relaxation hole and each screw hole alternate in the circumferential direction of the body, each stress relaxation hole mitigating a deformation of the body in fixing the body onto the hub with the screw, a diameter of the stress relaxation hole being equal to or greater than a diameter of the screw hole in a surface of the body from which the screw is inserted into the body.
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IPC分类:
