Floppy disc chucking device

Details Floppy disc chucking device Floppy disc chucking device

1985-01-03

1987-03-31

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360133, G11B 2302

Patent

active

046547339

ABSTRACT:
A floppy disc chucking device is provided for a floppy disc apparatus. The device comprises a permanent magnet for magnetically attracting a metallic chucking plate at the central portion of a floppy disc and a hub having a coupling surface closely in contact with the attracted chucking plate and rotated by a drive mechanism. The coupling surface of the hub is processed to form a coupling layer that has a predetermined thickness and a predetermined high hardness and provides a low coefficient of friction with the chucking plate in contact therewith.

REFERENCES:
patent: 4320833 (1982-03-01), Antoniotti et al.

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