Head actuator for magnetic disk drive unit

Details Head actuator for magnetic disk drive unit Head actuator for magnetic disk drive unit

1995-02-24

1997-02-11

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 9702, 360 9807, G11B 555, G11B 2108

Patent

active

056027010

ABSTRACT:
A head actuator for a magnetic disk drive unit which eliminates the possibility of track slip due to a mechanical external force and allows high-speed access. The head actuator includes a carriage having a body provided rotatably to a shaft fixed to a housing and an arm fixed to the body so as to extend substantially perpendicularly to the shaft, a supporting member mounted on the body on its side opposite to the arm with respect to the shaft, and a coil fixed to the supporting member and receiving a driving force from a static magnetic field. The supporting member is formed of a material having a specific gravity larger than that of a material forming the body of the carriage.

REFERENCES:
patent: 4860135 (1989-08-01), Cain
patent: 5184265 (1993-02-01), Foote et al.
patent: 5367419 (1994-11-01), Kazama
patent: 5422776 (1995-06-01), Thorson et al.
patent: 5446608 (1995-08-01), Sanada

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