Disk drive assembly
US4686592A · kind A · utility
Inventors
Key dates
| Filing date | May 2, 1985 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | May 2, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B25/043
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An improved disk drive device including a disk of recording media and having a central aperture, which disk is supported at its periphery by a cylindrical housing. A spindle motor is positioned at the outer periphery of the housing along with a single set of bearings, also positioned at the other periphery of the housing, to cause rotation of the housing relative to a base. A stepper motor is positioned with its shaft protruding through the center aperture of the disk and directly coupled to read/write heads. The stepper motor shaft is positioned parallel to but offset from the center line of the disk so that rotation of the stepper motor shaft causes the read/write heads to translate along an arc across the surface of the disk. The arc extends from the inner track of the disk to the outer track thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.