Disk device
US6834393B2 · kind B2 · utility
11Cited by
5References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 3, 2002 |
| Grant date | Dec 21, 2004 |
| Priority date | — |
| Expiry date | Feb 8, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk drive including a motor that rotates a disk, an auto-balancer connected to a rotating portion of the motor, a base secured to the motor and connected to an external member via a first elastic member, and a dynamic vibration absorber connected to the base via a second elastic member. When the disk makes a whirling motion while being rotated by the motor, a phase angle of 120 degrees to 180 degrees is formed between a direction that is pointed from a whirling center axis toward a center of mass of the disk and a direction that is pointed from the whirling center axis toward the center of mass of the auto-balancer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.