Disc drive magnetic latch having permanent magnet and electromagnet
US5448435A · kind A · utility
18Cited by
12References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 11, 1991 |
| Grant date | Sep 5, 1995 |
| Priority date | — |
| Expiry date | Sep 11, 2011 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc drive for performing writing information on and/or reading out information from a disc has a head, a movable member, a driving device, a restriction device and a release device. The head writes information on and/or reads out information from the disc. The movable member supports the head. The driving device moves the movable member. The restriction device fixes the movable member in a predetermined position in a moving path of the movable member by using a magnetic attractive force. The release device releases the movable member from the fixed state at the predetermined position by using a magnetic repelling force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.