Magnetic disc drive device with hub and clamper assembly for red

Dynamic magnetic information storage or retrieval – Record transport with head stationary during transducing – Disk record

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Details

G11B 1702

Patent

active

054145759

ABSTRACT:
A magnetic disc drive device contains a cylindrical hub integrally rotating with a magnetic disc, the cylindrical hub having disc clamp holes defined in an end surface thereof; a motor for rotating the cylindrical hub; and a projecting member formed between the disc clamp hole and the magnetic disc to be clamped in such a manner that the projecting member is extended in the axis direction of the hub on said end surface of the hub.

REFERENCES:
patent: 4775906 (1988-10-01), Suzuki et al.
patent: 5214326 (1993-05-01), Yonei

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