Apparatus for positioning a magnetic head on a head drum

Details Apparatus for positioning a magnetic head on a head drum Apparatus for positioning a magnetic head on a head drum

1988-12-20

1991-04-30

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360 7716, 360 7802, G11B 552

Patent

active

050123734

ABSTRACT:
A tape guide drum rotatable about its central axis is provided with a rotary head device including a head support which is flexible, at least in part, and extends radially in respect to such axis from a fixed inner portion to a radially outer portion at which one or more magnetic heads are mounted for movements therewith in directions substantially parallel with the central axis upon flexing of the head support at the flexible parts thereof, a rotary motor having a motor shaft rotatable about an axis extending radially in respect to the axis of the drum, a thrust bearing for absorbing an axial thrust of the motor shaft generated centrifugally in response to rotation of the drum, and a flexible metal belt having an intermediate loop wound about and coupled to the shaft and opposite ends fixed to the radially outer portion of the head support for converting rotation of the motor shaft into the movements of the magnetic head or heads parallel to the drum axis.

REFERENCES:
patent: 4212043 (1980-07-01), Baker
patent: 4363046 (1982-12-01), Saito
patent: 4695907 (1987-09-01), Inaji et al.
patent: 4939607 (1990-07-01), Saito
IBM Technical Disclosure Bulletin, vol. 12, No. 1, Jun. 1969, Price, Video Tape Recorder with Oscillating Head.

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