发明名称 |
Linear motor and machine tool having the same mounted thereon |
摘要 |
The present invention provides a linear motor 1 that can prevent a magnet member 2 from falling down when a power supply is turned off. A linear motor 1 includes a magnet member 2 composed of permanent magnets having alternately arranged respective N poles and S poles and a coil member 3 which surrounds a periphery of the magnet member 2 and trough which the magnet member 2 is movable in an axial direction relative to the coil member 3. A magnetic substance 3 is provided in the vicinity of one end of the coil member 3 to allow the magnet member 2 to exert a magnetic attractive force (Fig.1). |
申请公布号 |
EP1906513(A2) |
申请公布日期 |
2008.04.02 |
申请号 |
EP20070017228 |
申请日期 |
2007.09.03 |
申请人 |
MURATA MACHINERY, LTD.;GMC HILLSTONE CO. LTD. |
发明人 |
OKADA, TAKUYA;ISHIYAMA, NORITAKA |
分类号 |
H02K41/03;H02K1/14;H02K5/167;H02K7/118 |
主分类号 |
H02K41/03 |
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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