Contact start/stop-type fixed magnetic disk apparatus with wind

Details Contact start/stop-type fixed magnetic disk apparatus with wind Contact start/stop-type fixed magnetic disk apparatus with wind

1986-12-04

1988-07-05

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 75, 360103, 360106, G11B 554, G11B 2121, G11B 2102, G11B 2112

Patent

active

047558962

ABSTRACT:
A CSS-type fixed magnetic disk apparatus is disclosed which has a magnetic disk with a landing zone on which no positional information is recorded. A swinging arm actuator which supports a magnetic head has a plate mounted on it which is subjected to wind pressure produced by the rotation of the disk. When the rotational speed of the disk reaches a certain level, the wind pressure acting on the plate rotates the actuator outwards so that the magnetic head is automatically moved from the landing zone into the data zone of the disk. When the magnetic head is in the data zone, the position of the magnetic head is controlled by servo control using a voice coil motor.

REFERENCES:
patent: 4647997 (1987-03-01), Westwood
patent: 4692829 (1987-09-01), Campbell
"Design of a Swinging Arm Actuator", IBM Journal of Research and Development, vol. 20, No. 4, Jun. 1976, pp. 389-397.

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