Return plate for a voice coil motor in a disk drive

Details Return plate for a voice coil motor in a disk drive Return plate for a voice coil motor in a disk drive

1992-12-28

1994-05-17

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Linear

310 42, 318135, 360106, H02K 4102, H02K 1514, G11B 3300

Patent

active

053131240

ABSTRACT:
A return plate for the voice coil motor of a disk drive is disclosed, wherein the angular positions of the top and bottom plates of the return plate are aligned by employing slot shaped voids and anchoring features. The bottom plate is anchored by a tight tolerance coupling to an actuator mounting boss in the base plate of the disk drive. The angular position of the bottom plate is controlled by a slot shaped hole that couples with a tight tolerance in a narrow dimension to an alignment boss in the base plate. The top plate is anchored to the base plate, and the angular position of the top plate is controlled by a slot shaped standoff that couples with a tight tolerance in a narrow dimension to the alignment boss.

REFERENCES:
patent: 4476404 (1984-10-01), Bygdues
patent: 4620252 (1986-10-01), Bauck et al.
patent: 4716483 (1987-12-01), Walsh
patent: 5041934 (1991-08-01), Stefansky et al.
patent: 5051669 (1991-09-01), Hsiao et al.
patent: 5160865 (1992-11-01), Gururangan
patent: 5216662 (1993-06-01), Stefansky et al.

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