Apparatus and method for retaining a head arm of a disk drive as

Details Apparatus and method for retaining a head arm of a disk drive as Apparatus and method for retaining a head arm of a disk drive as

1985-08-07

1988-08-16

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 86, 360 97, G11B 554, G11B 2122

Patent

active

047648317

ABSTRACT:
A disk drive which includes an automatic parking brake for retaining the driver arm in a predetermined position when power is removed from the disk drive. The brake is mounted externally to the driver arm, reducing the weight of the driver arm. The brake consists of a spring loaded member held in place during operation of the disk drive by a solenoid acting as an electromagnet. When power is cut off, the solenoid releases the member and the spring biases it against the driver arm and forces the driver arm to a parked position.

REFERENCES:
patent: 4131921 (1978-12-01), Gruczelak
patent: 4139874 (1979-02-01), Shiraishi
patent: 4484241 (1984-11-01), Brende et al.
patent: 4489355 (1984-12-01), Rudi
patent: 4538193 (1985-08-01), Dimmick et al.
patent: 4547823 (1985-10-01), Ri et al.
patent: 4562500 (1985-12-01), Bygdnes
patent: 4594627 (1986-06-01), Viskochil et al.
patent: 4654735 (1987-03-01), Izraelev et al.
Hearn, "Actuator Retraction Device", IBM Tech. Disc. Bull., vol. 19, No. 4, Sep. 1976.

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