Carriage moving device

Details Carriage moving device Carriage moving device

1987-01-15

1988-09-27

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 555, G11B 2108

Patent

active

047746122

ABSTRACT:
A carriage moving device for moving a carriage having a head unit in a radial direction of a disc. The carriage moving device comprises a screw shaft formed with a spiral intermittent driving screw on an outer circumference thereof, the intermittent driving screw being formed by a plurality of groove portions each having a lead angle of substantially zero and each having a straight bottom, the groove portions being so arranged as to be sequentially shifted in the axial direction of the screw shaft, and a stepping motor having a rotating shaft perpendicular to the screw shaft. A spur gear is mounted to the screw shaft, and a crown gear is mounted to the rotating shaft of the stepping motor in such a manner that the spur gear is meshed with the crown gear.

REFERENCES:
patent: 3947893 (1976-03-01), Hall, Sr.
patent: 4273002 (1981-06-01), Ogasawara et al.
patent: 4466032 (1984-08-01), Saito
patent: 4652951 (1987-03-01), Kirn
patent: 4654737 (1987-03-01), Hopkins et al.
patent: 4688440 (1987-08-01), Okita

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