Device for positioning a magnetic head to various tracks of a magnetic tape
US4609959A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 25, 1983 |
| Grant date | Sep 2, 1986 |
| Priority date | — |
| Expiry date | Nov 25, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5504
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A device for positioning a magnetic head into an operative position relative to a multi-track magnetic tape in a magnetic tape recorder. A magnetic head is disposed at one end of a magnetic head carrier while the opposite end of the head carrier is axially and laterally moveably mounted on a shaft attached to the tape recorder housing frame. A motor-driven worm gear engages a worm wheel mounted in an axially displaceable manner along the shaft. A spring mounted on the shaft urges the head carrier against the worm wheel so that upon rotation of the worm, the worm wheel is displaced along the shaft and moves the magnetic head perpendicularly to the running direction of the magnetic tape. A stop member is positioned adjacent the head carrier to prevent rotation of the head carrier during rotation of the worm wheel. In certain embodiments, the head carrier is pivotally mounted on the shaft in order to selectively pivot the magnetic head away from the operational working area thereof. The magnetic head carrier is seated in a bearing plate formed of a resilient material and on the shaft. After releasing the fastening of the bearing plate at one end thereof, the magnetic head and magnetic…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.