Air vane latch incorporating top cover profiling

Details Air vane latch incorporating top cover profiling Air vane latch incorporating top cover profiling

1995-11-03

1998-06-16

Cao, Allen

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 554

Patent

active

057680574

ABSTRACT:
A latch system for use in a disc drive is provided wherein a latch system comprises a latch arm having an engaging portion for engaging an engaging transducer support arm for a disc drive to prevent movement of the transducer, and a wind vane that extends partially along an arc or a line near to the edge of the disc. The latch arm and vane are arranged so that in the presence of disc rotation wind presses against the vane, and the vane moves away from the disc. In order to make the vane effective and create sufficient torque or force against the surface of the vane, the top surface of the disc drive housing is depressed in the region of the disc which is upstream from the location of the vane, where by upstream is meant that the rotation of the disc causes wind to be generated which flows under the top portion of the housing and then impacts against the vane. By providing a specifically defined, depressed region in the top housing surface, sufficient torque is generated by the airflow as caused by rotation of a disc for the wind to open the vane when the disc drive is operating.

REFERENCES:
patent: 4538193 (1985-08-01), Dimmick et al.
patent: 4647997 (1987-03-01), Westwood
patent: 4692829 (1987-09-01), Campbell
patent: 5036416 (1991-07-01), Mastache
patent: 5043834 (1991-08-01), Kubo et al.
patent: 5319511 (1994-06-01), Lin
patent: 5363261 (1994-11-01), Eckberg et al.

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