Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record
Patent
1984-07-03
1986-12-02
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record transport with head stationary during transducing
Disk record
36013034, 369270, G11B 5016, G11B 1702, G11B 2112
Patent
active
046269436
ABSTRACT:
A torsional actuator is disclosed for loading and unloading a flexible disk drive. The actuator includes a torsion beam having a biasing arm and a plurality of actuating arms extending therefrom with the free ends of the actuating arms being separately engageable with different ones of the collet, pressure pad and recording head arm of the flexible disk drive. The arms of the actuator are configured to enable selective and sequential movement of the collet, pressure pad and/or recording head arm in one direction toward a disk within the drive to establish a loaded, or operational, position and in the opposite direction away from a disk within the drive to establish an unloaded, or disk accessing, position with such positioning being determined by a force applying cam engageable with the actuator.
REFERENCES:
patent: 4040106 (1977-08-01), Medley
patent: 4040107 (1977-08-01), Bryer
patent: 4125883 (1978-11-01), Rolph
patent: 4193102 (1980-03-01), Beuch et al.
patent: 4541025 (1985-09-01), Sidhu et al.
Pierson, "Energy-Dampening Device for Disk Drive Machine", IBM Tech Disc Bull, vol. 21, No. 12, May 1979, pp. 4965-4968.
"Centering and Clamping a Floppy Disk in a Diskette Drive", by J. J. Holecek et al, IBM Technical Disclosure Bulletin, 26:1, Jun., 1983, pp. 166-167.
Janssen Donovan M.
Kirton Alan J.
Murphy Robert M.
Rose LeRoy
Harris Robert E.
International Business Machines Corp.
Tupper Robert S.
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