Disc drive having positional shift adjustment
US5648883A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 14, 1994 |
| Grant date | Jul 15, 1997 |
| Priority date | — |
| Expiry date | Dec 14, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5565
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved disc drive is capable of compensating the relative positional shift of a head caused mainly by a temperature change. The disc drive includes a frame having a disc holder for rotatably driving a disc, a head for reading information recorded in the disc, a head carriage which is movable in a predetermined radial direction of the disc, a rotation shaft extending in parallel with the radial direction, a driving mechanism for moving the head carriage in the radial direction by engaging with the rotation shaft, an adjustment mechanism for compensating the positional shift of the head due to a change of ambient temperature by providing an additional deformation of the adjustment mechanism to the carriage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.