发明名称 |
Protective device |
摘要 |
A protective device ( 1 ) for protecting an optical head ( 2 ) of a disc drive unit against dirt and dust and shock when the disc drive unit is not in use comprises a carrier disc ( 5 ) similar to a music CD disc for engaging in the disc receiving area of the disc drive unit. A brush member ( 6 ) located on the carrier disc ( 5 ) at a position corresponding to the inner data track ( 10 ) of a music CD disc is provided for engaging a lens ( 3 ) and a peripheral portion ( 7 ) of a lens carrier ( 4 ) of the head ( 2 ) when the head ( 2 ) is in the inactive position for protecting the lens ( 3 ) and the peripheral portion ( 7 ) against dirt and dust. Fibers ( 15 ) of the brush member ( 6 ) embrace the lens ( 3 ) when the head ( 2 ) is in the inactive position.
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申请公布号 |
US7444652(B2) |
申请公布日期 |
2008.10.28 |
申请号 |
US20040971046 |
申请日期 |
2004.10.25 |
申请人 |
FRITSCH JOSEPH FREDERICK;FRITSCH ROXANNE YVONNE |
发明人 |
FRITSCH JOSEPH FREDERICK;FRITSCH ROXANNE YVONNE |
分类号 |
G11B7/08;G11B5/40;G11B5/41;G11B7/12;G11B23/03;G11B33/14 |
主分类号 |
G11B7/08 |
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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