Head lifter for disk drive

Details Head lifter for disk drive Head lifter for disk drive

1987-07-08

1988-11-22

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360104, G11B 554, G11B 2122, G11B 2116

Patent

active

047870001

ABSTRACT:
An improved head lifting mechanism for a hard disk drive which lifts miltiple heads away from the top and bottom surfaces of disks. Two opposing lifter arms are used with one end of a first lifter arm extending between a head arm and the top surface of a disk while one end of the other lifter arm extends between another head arm and the bottom surface of a disk. The head arms are biased away from each other by a spring to separate the heads from the disk. An electromagnet pulls the lifter arms towards each other during operation of the disk drive so that the heads are not separated from the disks.

REFERENCES:
patent: 3646536 (1972-02-01), Bleiman
patent: 3984873 (1976-10-01), Pejcha
patent: 4218714 (1980-08-01), Isozaki et al.
patent: 4376294 (1983-03-01), Meir et al.
patent: 4661873 (1987-04-01), Schulze

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