Disk drive unit with power-off head parking and locking mechanis

Details Disk drive unit with power-off head parking and locking mechanis Disk drive unit with power-off head parking and locking mechanis

1985-09-12

1988-06-14

Hecker, Stuart N.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360106, 360 75, G11B 554, G11B 2108

Patent

active

047515953

ABSTRACT:
A disk drive unit such as a magnetic disk drive unit has a read/write head for recording signals on and reproducing signals from an information storage disk, a motor energizable by a power supply for driving the read/write head in the radial direction of the information storage disk, an auxiliary head driver responsive to turning-off of the power supply for enabling the motor to drive the read/write head radially toward a non-recording area of the information storage disk, and a head locking mechanism responsive to turning-off of the power supply for locking the read/write head having reached the non-recording area.

REFERENCES:
patent: 3751603 (1973-08-01), Prieur et al.
patent: 4139874 (1979-02-01), Shiraishi
patent: 4237501 (1980-12-01), Barmache et al.
patent: 4371903 (1983-02-01), Lewis
patent: 4562500 (1985-12-01), Bygdnes
patent: 4594627 (1986-06-01), Viskochil et al.
patent: 4654735 (1987-03-01), Izraelev et al.
patent: 4660120 (1987-04-01), Manzke et al.
IBM-TDB--vol. 22, No. 4 (9/79) pp. 1594-1596, W. P. Quinlan, Magnetic Head Unload Mechanism.
IBM-TDB--vol. 20, No. 6 (11/77) pp. 2362-2363, J. D. Hall et al., Head Retraction Latch Mechanism.

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