Apparatus for driving a floppy disc

Details Apparatus for driving a floppy disc Apparatus for driving a floppy disc

1982-04-19

1986-10-28

Cardillo, Jr., Raymond F.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 97, 360 71, G11B 1704, G11B 5012

Patent

active

046202498

ABSTRACT:
An apparatus for driving a floppy disc includes a first sensor responsive to a magnetic disc encased in a jacket of the floppy disc. Before the magnetic disc is gripper in a predetermined position, a d.c. motor included in a disc rotating mechanism is started in order to prevent rush current therethrough. After the start of the d.c. motor, a second sensor senses a return of the magnetic disc to a predetermined regular position whereupon a cone load drive source is activated to automatically move a cone toward a drive hub. Thus, the magnetic disc can be gripped and set in the regular position merely by inserting it into the apparatus. The apparatus also includes ejection apparatus for ejecting the floppy disc.

REFERENCES:
patent: 3940793 (1976-02-01), Bleiman
patent: 4040107 (1977-08-01), Bryer
patent: 4139876 (1979-02-01), Owens
patent: 4306259 (1981-12-01), Saito et al.
patent: 4352132 (1982-09-01), Gyi

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