Head actuator having reduced and controlled vibration characteri

Details Head actuator having reduced and controlled vibration characteri Head actuator having reduced and controlled vibration characteri

1996-04-23

1998-06-09

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 555

Patent

active

057644411

ABSTRACT:
A rotary moving coil actuator in a disk drive selectively positions a read/write head with respect to disk medium. A carriage is pivotable about an axis and has a carriage arm for supporting the head. A pair of magnets, disposed in spaced relationship within a magnetic yoke structure, have spaced flat faces perpendicular to the axis and define a gap therebetween. A flat coil structure, comprising one or a pair of flat coils, is attached to the carriage and disposed at least in part within the gap between the opposing flat faces of the magnets so as to be movable along a stroke of movement relatively thereto. The flat coil structure in cooperation with the magnets, generates a driving force in a direction approximately parallel to a first line which is perpendicular to the axis and passes through the axis and toward the read/write head and thereby substantially perpendicular to the seek direction of the head.

REFERENCES:
patent: 4620252 (1986-10-01), Bauck
patent: 5119253 (1992-06-01), Kotani
patent: 5233493 (1993-08-01), Eliason
patent: 5267110 (1993-11-01), Ottesen
patent: 5486965 (1996-01-01), Yoshida

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