Disc clamping device with self lock elements
US6487162B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 20, 2000 |
| Grant date | Nov 26, 2002 |
| Priority date | — |
| Expiry date | Apr 20, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/0282
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc clamping device with self lock elements particularly for DVD-ROM or CD-ROM fixedly maintained on a turntable when disc is rotating in high speed. The device comprises a turntable having a boss on the center for putting disc thereon, and a disc clamping member tightly sleeved on boss having protuberances on periphery wherein protuberances are deformed inwards when biased by disc such that disc can insert through disc clamping member, and then protuberances return to original forms by elastically energized force for clamping disc on turntable. By utilizing this, the purposes of decreasing the umber of parts, easy assembly, and high precision positioning of disc are achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.