发明名称 |
Magnetic circuit structure for a rotary actuator in a disk drive |
摘要 |
A magnetic circuit structure in a disk unit which can be manufactured at low costs. The magnetic circuit includes a main yoke manufactured by stacking a plurality of rolled steel plates and connecting them together by caulking. The magnetic circuit further includes an inner magnet, an outer magnet, and a side yoke all of which are mounted on the main yoke. Both ends of the inner magnet abut against a pair of shoulders formed on the main yoke, and both ends of the outer magnet abut against a pair of shoulders formed on the main yoke. Vertical movement of the inner magnet is prevented by a pair of presser plates and fixed to the main yoke, and vertical movement of the outer magnet is also prevented by a pair of presser plates and fixed to the main yoke.
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申请公布号 |
US5847903(A) |
申请公布日期 |
1998.12.08 |
申请号 |
US19960751414 |
申请日期 |
1996.11.18 |
申请人 |
FUJITSU LIMITED |
发明人 |
OGAWA, YOSHINORI;TOCHIYAMA, KAZUNORI;SATO, YOSHIHIRO;SUZUKI, HIRONORI |
分类号 |
G11B21/02;G11B5/55;H02K1/17;H02K41/035;(IPC1-7):H02K41/00;G11B21/08;G11B5/52 |
主分类号 |
G11B21/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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