Disk drive having rigid actuator arm structures

Details Disk drive having rigid actuator arm structures Disk drive having rigid actuator arm structures

1997-02-19

1998-06-16

Levy, Stuart S.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

360104, G11B 548, G11B 555

Patent

active

057680620

ABSTRACT:
A disk drive having a pair of axially spaced disks has a rotary actuator/head assembly in which a single rigid actuator arm projects between the axially spaced disks. A gimbal spring is mounted to each surface of the opposite surfaces at one distal end of the rigid actuator arm. Each gimbal spring mounts a slider having a magnetic head, the individual magnetic heads confronting the respective disk surfaces. The proximal ends of respective cantilever load springs are mounted to opposite surfaces of the rigid arm and their distal ends engage and spring bias the respective sliders against the respective disk surfaces. A printed circuit coil on one or both surfaces of the other distal end of the rigid actuator arm is the armature of an axial gap actuator motor, having a permanent magnet stator. Printed circuit traces mounted to the rigid actuator arm connect the printed circuit coil to bonding pads of a group of bonding pads on the rigid actuator arm at a location on the rigid actuator arm adjacent the axis of rotation. Other printed circuit traces mounted to the gimbal springs and to the rigid arm, connect the respective magnetic heads to other bonding pads of the group of bonding pads. Individual circuits of a flat flexible cable are connected to respective bonding pads for coupling electrical signals to and from said magnetic heads and for coupling bi-polar direct current to said printed circuit coil.

REFERENCES:
patent: 4985652 (1991-01-01), Oudet et al.
patent: 5121273 (1992-06-01), Slezak
patent: 5392176 (1995-02-01), Anderson
patent: 5422764 (1995-06-01), McIlvanie
patent: 5452151 (1995-09-01), Money et al.

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