Aerodynamic latch with a vane-propelled shaft for a disc drive

Details Aerodynamic latch with a vane-propelled shaft for a disc drive Aerodynamic latch with a vane-propelled shaft for a disc drive

1998-01-30

1999-12-07

Davis, David D.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Drum record

G11B 554

Patent

active

059993715

ABSTRACT:
An actuator latch for latching an actuator of a disc drive having a rotating disc that induces airflow when the disc drive is operational, the actuator latch having a shaft supported by a baseplate, the shaft supporting a plurality of vanes to rotate the shaft in response to airflow generated by disc rotation. A locking member is operably engaged with the shaft and moveable thereby to a latched position and to an unlatched position, the actuator being secured by the locking member in the latched position and the actuator being released to move freely in the unlatched position. The locking member is caused to be positioned in the unlatched position when airflow rotates the vanes and shaft, and a biasing member reverse rotates the shaft when the airflow ceases, thus returning the locking member to the latched position when the disc drive becomes non-operational.

REFERENCES:
patent: 4647997 (1987-03-01), Westwood
patent: 5043834 (1991-08-01), Kubo et al.
patent: 5187627 (1993-02-01), Hickox et al.
patent: 5224000 (1993-06-01), Casey et al.
patent: 5231556 (1993-07-01), Blanks
patent: 5274519 (1993-12-01), Saito et al.
patent: 5319511 (1994-06-01), Lin
patent: 5404636 (1995-04-01), Stefansky et al.

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