Auto-balancing device, turntable device, and disc driving device
US8069457B2 · kind B2 · utility
0Cited by
2References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2008 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Jul 17, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0284
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An auto-balancing device, as well as a turntable device and a disc driving device equipped with the auto-balancing device are disclosed. The auto-balancing device, which includes a housing, which is coupled with a rotating body, and in which an annular insertion groove is formed; a correcting ring, rotatably inserted in the insertion groove; and multiple correcting balls, positioned between the correcting ring and an outward inwall of the insertion groove, can reduce noise and vibration for a rotating body during acceleration and deceleration and during high-speed rotations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.