Auto balancing device and disc chucking device and disc driving device having the same
US8156514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2008 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Jan 4, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B19/2027
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An auto-balancing device, and a disc chucking device and a disc driving device equipped with the auto-balancing device are disclosed. The auto-balancing device may include: a housing, which is coupled with a rotating body, and on which a boss is formed; multiple balancing members, which are rotatably supported by the boss, and in at least one of which a hole is formed; and a guiding roller, which is inserted in the hole, and which guides a movement of the balancing member. The auto-balancing device can be utilized to 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.