Stepping motor for a belt drive head travelling mechanism for a

Details Stepping motor for a belt drive head travelling mechanism for a Stepping motor for a belt drive head travelling mechanism for a

1985-07-26

1987-10-06

Wolff, John H.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360109, G11B 555, G11B 2108

Patent

active

046987100

ABSTRACT:
A head travelling mechanism for a floppy disk drive including a stepping motor which is provided with a pair of stator coils arranged in both end sides of its casing. These two stator coils are not only supplied exciting electric current with predetermined combined phases to drive the feeding belt but also the direction of these two stator coils is in parallel with the travelling direction of the magnetic heads, and combination of exciting phases in the stator coils enables the inclination of the motor shaft of the stepping motor to be absorbed as a sideways motion of the feeding belt so that the travelling error of the magnetic heads can be reduced to the minimum.

REFERENCES:
patent: 4161004 (1979-07-01), Dalziel
patent: 4170146 (1979-10-01), Owens
patent: 4455499 (1984-06-01), Sudler
patent: 4528473 (1985-07-01), Tezuka
patent: 4599666 (1986-07-01), Liu et al.

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