Design for an actuator arm for a disc drive

Details Design for an actuator arm for a disc drive Design for an actuator arm for a disc drive

1989-05-01

1990-12-18

Severin, David J.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 555

Patent

active

049790633

ABSTRACT:
A pivot bearing assembly for a disc drive including the combination of a bearing surrounded on one side by a wishbone-shaped end of the actuator arm, and on the other side by a biasing spring metal strip whose ends are tightly attached to the split ends of the wishbone of the actuator arm. When the arm assembly is mounted in the disc drive, the bearing is mounted on its center of rotation, with the spring tensile force biasing the head of the actuator arm against the spindle of the stepper motor. By providing the distal end of the actuator arm with a gear sector having gear teeth on its face which mesh with a pinion on the motor shaft of the stepper motor, rotation of the motor shaft across the face of the gear sector causes movement of the actuator arm and with it the flexure and transducer across the surface of the disc. The head arm supporting the flexure and transducer extends from the side of the actuator drive arm at a point near the stepper motor driven end of the drive arm, reducing head arm length.

REFERENCES:
patent: 4556924 (1985-12-01), Quist, Jr. et al.
patent: 4631611 (1986-12-01), Schneider
patent: 4745504 (1988-05-01), Foote

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