Disc driving unit

Details Disc driving unit Disc driving unit

1988-08-04

1989-12-12

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360 9904, G11B 1702

Patent

active

048871753

ABSTRACT:
A disc driving unit is arranged so that a spindle for rotating a disc member, a pulley coupled to the spindle to transmit a rotational force to the spindle, and an inner or outer ring of a bearing to support the spindle rotatably are formed integrally. This arrangement greatly reduces a number of components in the unit so that the assembly process can be greatly simplified. Moreover, the error during assembly can be kept small. Furthermore, the bearing is disposed inside the rotating plane of the spindle, so that the rotational accuracy and planarity of the spindle are improved, and the overall height of the unit can be minimized.

REFERENCES:
patent: 3885245 (1975-05-01), Nakatani
patent: 4024581 (1977-05-01), Lesca et al.
patent: 4068271 (1978-01-01), Kok
patent: 4420830 (1983-12-01), Green
patent: 4698709 (1987-10-01), Ihlenburg et al.
patent: 4713704 (1987-12-01), Voll et al.
Bailey et al., "Dual Diskette Drive", IBM Technical Disclosure Bulletin, vol. 21, No. 11, Apr. 1979, pp. 4616-4619.

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