Load beam assembly with separate spring and hinge functions
US5796554A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 1, 1997 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Apr 1, 2017 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B21/26
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention resides in a load beam assembly forming part of a head stack assembly in a magnetic disk drive, the load beam assembly biasing a transducer head against a rotating magnetic disk. The load beam assembly normally has spring and hinge functions combined in a single "spring/hinge" portion of a load beam stamped from a stainless steel sheet. Here, however, the spring and hinge functions are uniquely separated from one another in separate spring and hinge members. The preferred load beam assembly has a base portion, a load beam, and a hinge member joining them so that the load beam pivots relative to the base portion. The load beam is further provided with a bearing surface that cooperates with a preferred spring member, one end of the spring member being fixed relative to the base portion and the other end contacting the bearing surface of the load beam. The preferred spring member is a flat cantilever captured in a plastic base
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.