Thermal compensation structure for a disk pack module
US4910620A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 28, 1988 |
| Grant date | Mar 20, 1990 |
| Priority date | — |
| Expiry date | Apr 28, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B33/1433
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A disk pack module of a manetic disk memory provides a plurality of data disks separated from one another by spacer rings and arranged on a hub that is rotatably arranged in a housing. The data disks are slipped onto the hub against a flange thereof that projects in the radial direction and is constructed to be elastically deformable and are non-positively clamped thereto with a tension plate. A tension plate is provided, as a receptacle for the tension plate, that is fixed at the end face of the hub facing away from the flange and is constructed such that it reversibly deforms given material stresses occurring as a consequence of temperature changes. As a result of a twisting deformation of the tension ring, different thermal expansions of the hub or, respectively, of the element slipped thereon, are intercepted and neutralized in collaboration with the deformation of the hub flange.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.