Collet loading apparatus

Details Collet loading apparatus Collet loading apparatus

1978-10-12

1980-03-11

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360105, 346137, 274 9B, 274 39A, G11B 5012, G11B 2122, G11B 554, G11B 362

Patent

active

041931017

ABSTRACT:
Apparatus for loading a collet with respect to a rotatable drive hub of a magnetic disk drive machine for gripping a magnetic disk between the collet and drive hub including a leaf spring supported at opposite ends with respect to a machine frame and carrying the collet at an intermediate place between the ends. One of the ends of the spring is pivotally mounted on the frame, and a manually rotatable lever applies a force onto the leaf spring between its pivotal mounting and the collet so as to move the collet to engage the disk between the collet and drive hub against the resilience of the leaf spring. The leaf spring is relatively wide in its portion between its pivotal mounting and the collet and is relatively narrow between the collet and its other end so that the narrow portion of the spring bends the wide portion of the spring as the collet is moved toward the hub whereby the collet uniformly grips the disk with respect to the hub and whereby the longitudinal center of the collet remains nearly coincident with the longitudinal center of the hub as the collet completes its disk engaging movement with respect to the hub to avoid side thrust on the disk.

REFERENCES:
patent: 4040106 (1977-08-01), Medley
Neubauer et al., "Low Profile Diskette Drive", IBM Tech. Disc. Bull., vol. 20, No. 10, Mar. 1978, p. 4066.

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