Transverse positioner for read/write head

Details Transverse positioner for read/write head Transverse positioner for read/write head

1990-06-29

1992-04-14

Tupper, Robert S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 555, G11B 2108

Patent

active

051053225

ABSTRACT:
The invention features an apparatus for positioning a magnetic tape head transversely relative to a length of magnetic tape in a tape drive and includes a threaded leadscrew driven by a motor, a movable carriage for holding the tape head and having separated guide holes for receiving the threaded leadscrew and guiding the movable carriage axially along the leadscrew so that the resulting tape head motion is transverse to the direction of the tape. A leadscrew nut is connected to the movable carriage so that a threaded portion of the nut engages the leadscrew threads between the separated guide holes to propel the carriage axially along the leadscrew when the motor rotates the leadscrew. A spring is attached to the carriage and bears on the leadscrew nut so that the leadscrew nut threads are preloaded against the leadscrew threads. The guide holes include a pair of flattened surfaces forming a V-shaped groove parallel to the leadscrew and opposite the leadscrew nut so that the leadscrew nut bearing against the leadscrew preloads the leadscrew into the V-shaped groove of the guide holes.

REFERENCES:
patent: 4005493 (1977-01-01), Morgan
patent: 4071866 (1978-01-01), Butsch
patent: 4414593 (1983-11-01), Miller et al.
patent: 4747004 (1988-05-01), Kukreja et al.
patent: 4918548 (1990-04-01), O'Donnell et al.

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