Disc driving device having a reinforced base

Details Disc driving device having a reinforced base Disc driving device having a reinforced base

1986-06-26

1989-03-21

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360133, G11B 5012, G11B 2302

Patent

active

048149144

ABSTRACT:
Disclosed herein is a disc driving device comprising a base having a fixed substrate and a cylindrical retaining portion integrally formed with the substrate, a rotating shaft rotatably supported to the retaining portion a rotatable hub fixed to the rotating shaft and surrounding the retaining portion, the rotatable hub being provided with an information recording disc at an outer circumference thereof, a driving means for applying a rotational force to the hub, and a reinforcing member provided in the substrate and the retaining portion of the base, the reinforcing member being made of materials having rididity higher than that of the substrate and the retaining portion.

REFERENCES:
patent: 3786290 (1974-01-01), Papst et al.
patent: 3814960 (1974-06-01), Burgbacher
patent: 4190870 (1980-02-01), Avina et al.
patent: 4519010 (1985-05-01), Elsaesser et al.
patent: 4623810 (1986-11-01), Smith

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