Mechanism for centering and clamping a floppy disc

Details Mechanism for centering and clamping a floppy disc Mechanism for centering and clamping a floppy disc

1981-05-04

1983-10-11

Eddleman, Alfred H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 97, G11B 5016, G11B 1702, G11B 2504

Patent

active

044096291

ABSTRACT:
A positioning and clamping system for floppy disc recording media utilizes a tapered positioner cone having extremely pliant petals. The cone defines a nominal circumference which is greater than the disc aperture, and the petals yield to conform to disc placement. Centering is accomplished before clamping by a radial return of the petals to balanced positions, acting against the unclamped disc. The geometry of the cone and follower are such that forces that would tend to distort the cone are minimized.

REFERENCES:
patent: 3940793 (1976-02-01), Bleiman
patent: 4040106 (1977-08-01), Medley
patent: 4125883 (1978-11-01), Rolph
patent: 4171531 (1979-10-01), Grapes et al.
patent: 4177491 (1979-12-01), Jann
patent: 4216510 (1980-08-01), Manzke et al.
IBM TDB, J. J. Holecek et al., Loading Collet for Flexible Magnetic Disks, vol. 21, No. 1, Jun. 1978, pp. 291-292.

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