Disk clamping device

Details Disk clamping device Disk clamping device

1986-08-26

1988-06-28

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

369270, G11B 362

Patent

active

047543507

ABSTRACT:
A disk clamping device for centering and clamping a disk, for disk recording an reproducing apparatus, which comprises: a wheel for holding a disk thereon, rotatably supported on the frame of the disk recording and reproducing apparatus; and a hub rotatably and axially moveably supported on a frame so as to be moved toward or away from the wheel for disk clamping or disk unclamping operation. The hub has a plurality of radial arms arranged at regular angular intervals along the periphery thereof. A pressing part is provided at the outer end of each radial arm. The pressing part has a pair of pressing surfaces formed at the opposite ends of the underside thereof and a pair of disk guides depending from the opposite ends of the inner edge thereof. The circumferential position of the pressing surfaces coincides with that of the corresponding disk guides, so that the radial arm will never be twisted when the hub is pressed against the wheel to clamp a disk therebetween, by reaction forces exerted thereto through the pressure surfaces and the corresponding disk guides by the wheel.

REFERENCES:
patent: 4125883 (1978-11-01), Rolph
patent: 4413294 (1983-11-01), Beijer
patent: 4575837 (1986-03-01), Okita

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