Drive apparatus for recording disks in which the disk is clamped

Details Drive apparatus for recording disks in which the disk is clamped Drive apparatus for recording disks in which the disk is clamped

1981-05-01

1984-02-07

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 97, G11B 2504

Patent

active

044306784

ABSTRACT:
A drive apparatus for a recording disk, particularly a flexible magnetic disk in an envelope, comprising a rotatable clamping member which can be caused to engage one another, after the recording disk has been introduced therebetween, to clamp the disk for rotation thereof, in position between clamping surfaces of the two members. The clamping member is of axially expandable design and a resilient element is interposed between the face of the clamping member and the bottom of the recessed member so that the clamping member, prior to completion of its stroke and prior to its radial expansion, is engaged by the spring element. In this manner the spring element centers the position of the clamping member with respect to the recessed member and thereby insures clamping of the disk in its centered position.

REFERENCES:
patent: 3898814 (1975-08-01), Chou et al.
patent: 4171531 (1979-10-01), Grapes et al.
IBM/TDB, vol. 19, No. 6, Nov. 1976, pp. 2202-2203, "Collet Mechanism for Centering . . . ", by Lightner.

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