Disc driving unit and disc equipment using the same
US7474023B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 18, 2006 |
| Grant date | Jan 6, 2009 |
| Priority date | — |
| Expiry date | Jul 5, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0282
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The disc-driving unit is formed of a rotor having a turntable on which a disc is mounted, a stator having a bearing housing, and a drop-guard mechanism for protecting the rotor from coming out of the stator. On the turntable, a plurality of engaging sections are integrally formed, while on the bearing housing, an engaged section is integrally formed. The engaged section has a plurality of recesses each of which has an opening width wide enough for passing through each of the engaging sections and a plurality of guides for helically guiding the engaging sections into the recesses. A helical engagement of the engaging sections and the engaged section completes the drop-guard mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.