Disk drive device and carriage of actuator with damping member
US7929254B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2007 |
| Grant date | Apr 19, 2011 |
| Priority date | — |
| Expiry date | Nov 26, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4833
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present invention help to suppress performance degradation in an actuator of a disk drive device when attaching a damping member to a single surface of an arm. According to one embodiment, in a HDD a damping member is attached to a single surface of an arm. A shape of an inner arm is asymmetric with the center position between disks. Specifically, the thickness from a center position between the disks to the damping material attaching surface is thinner than the thickness from a center position between the disks to an opposite surface of the damping member attaching surface. This suppresses deformation of the vibration mode in the case that the damping member is attached to the single surface of the arm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.