Magneto-optic disk device and method of positioning magnetic head of the device
US6826130B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 18, 2002 |
| Grant date | Nov 30, 2004 |
| Priority date | — |
| Expiry date | May 2, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B11/10573
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a structure for and a method of adjusting the position of a magnetic head especially tangentially of a magnetic disk with improved accuracy for use in an optomagnetic disk device. The device has a head support unit 20 comprising a pickup 12 having an objective lens 10 mounted thereon, and a head arm 14 connected to the pickup 12 and provided with a magnetic head 16, the head arm 14 being adjustable in position relative to the pickup 12 so that the magnetic head 16 is opposed to the objective lens 10 on the pickup 12, the head support unit 20 being movable radially of the disk. The pickup 12 has at least one screw hole 22 for attaching the head arm 14 thereto, and the head arm 14 has a slit 24 opposed to the screw hole 22 of the pickup 12 and in parallel to the tangential direction of the disk. A screw 26 is slidably fitted in the slit 24 of the head arm 14 and has its distal end screwed in the screw hole 22. An elastic member 30 is provided between the screw 26 and the head arm 14 for pressing the head arm 14 against the pickup 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.