Disc clamp for improved disc stack balance
US6542330B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 30, 2000 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | May 20, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B17/038
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disc clamp for a disc drive used to secure a disc stack in position when the disc is mounted to a hub. The disc clamp is annular with a central opening and has three tabs. The three equidistantly spaced tabs extend radially inward from the circumferential edge of the central opening. The disc clamp is resiliently flexible and has a continuous annular disc contact region adjacent to an outer circumferential edge. The disc clamp also has at least three screw openings each for receiving a screw fastener to fasten the disc clamp to the hub in the clamping position. The disc clamp resiliently flexes in the clamping position to cause the annular disc contact region to bear against the surface of the outermost stacked disc to clamp the disc stack against radial and axial movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.