Apparatus for loading a magnetic disc and for controlling the dr

Details Apparatus for loading a magnetic disc and for controlling the dr Apparatus for loading a magnetic disc and for controlling the dr

1983-09-27

1987-02-03

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 97, 360105, 360106, G11B 1704

Patent

active

046412123

ABSTRACT:
A hub holder which pushes the center hub of a magnetic disc to a reference surface for setting is associated with a cassette guide for guiding a magnetic disc cassette to a recording/reproducing position at which information is recorded or reproduced to or from the magnetic disc, so that the hub holder's displacement can be amplified by a required degree. An upper dust-proof door and a lower dust-proof door are swingably disposed at the cassette insertion opening of a magnetic disc unit, and they are normally so biased that they close the cassette insertion opening dust-tightly. When they are closed, one of them abuts against the other. Thus, the magnetic disc unit is compact in size and light in weight, easily clamps the center hub of the magnetic disc, and is closed in a completely dust tight manner.

REFERENCES:
patent: 4096537 (1978-06-01), Butsch
patent: 4466031 (1984-08-01), Muraoka
patent: 4539613 (1985-09-01), Suyama et al.
patent: 4546396 (1985-10-01), Schatteman
Yanker, "Diskette Orientation Detector and Ejector," IBM Technical Disclosure Bulletin, vol. 23, No. 7A, Dec. 1980, pp. 2640-2641.
Townsend, "Ejection Feature Improvement for a Floppy Disc Device," Xerox Disclosure Journal, vol. 4, No. 2, Mar./Apr. 1979, pp. 275-276.

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