Disk drive including a latch configured to lock an actuator in response to an external force
US8320085B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 10, 2009 |
| Grant date | Nov 27, 2012 |
| Priority date | — |
| Expiry date | Dec 10, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/22
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive. The disk drive includes: a head for accessing a data recording area of a disk; an actuator for pivoting to move the head; a voice coil motor; and, a latch configured to lock the actuator from pivoting toward the data recording area in response to an external force. The voice-coil motor includes a voice coil, a magnet, and a yoke. The latch is positioned at a closed position when the actuator is positioned at a stand-by position, and is configured to pivot by application of a magnetic bias force with pivoting of the actuator from the stand-by position into proximity with the data recording area such that the latch is configured to stop at an open position. The yoke includes a protrusion which protrudes toward the magnetic body at the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.