Rotary actuator arrangement and method of manufacture
US5818665A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 26, 1996 |
| Grant date | Oct 6, 1998 |
| Priority date | — |
| Expiry date | Nov 26, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/4813
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A head disk assembly for a disk drive comprises a base, a bearing cartridge, a head stack assembly, and an elongated member. The bearing cartridge includes an inner shaft and an outer sleeve, the shaft being attached to the base and defining a pivot axis and the outer sleeve being rotatable relative to the pivot axis. The outer sleeve has a cylindrical sleeve surface. The head stack assembly includes an actuator body. The actuator body has a bore and a slot located adjacent to the bore such that the slot opens into the bore. The bore has a bore surface that defines a pair of ridges extending parallel to the length of the bore. The bearing cartridge is disposed within the bore. The elongated member is more compliant than the bore surface and more compliant than the sleeve surface, and is disposed in the slot and is compressed to provide a reacting force along a first contact line parallel to the pivot axis to bias the sleeve surface against the ridges to provide second and third contact lines each parallel to the pivot axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.