Disk drive actuator latch apparatus with solenoid coil...

Details Disk drive actuator latch apparatus with solenoid coil... Disk drive actuator latch apparatus with solenoid coil...

2005-05-12

2009-02-03

Renner, Craig A (Department: 2627)

Dynamic magnetic information storage or retrieval

Head mounting

For moving head into/out of transducing position

C360S256300

Reexamination Certificate

active

07486482

ABSTRACT:
An actuator latch apparatus for locking a swing arm of a disk drive is described. The apparatus includes a notch provided at an end portion of the swing arm; a latch lever rotatably installed on the base member and including a hook formed to interfere with the notch when the actuator is locked; a first latch pin applying a torque to the latch lever due to a magnetic force of the magnet in a first direction; a second latch pin extending from the latch lever; an attraction part protruded from an edge of the yoke, the attraction part being magnetized by the magnet and adsorbing the second latch pin when the actuator is locked; and a solenoid coil winding around the attraction part and offsetting a magnetism of the attraction part due to a supply of power when the actuator is unlocked.

REFERENCES:
patent: 5742455 (1998-04-01), Boutaghou
patent: 5877922 (1999-03-01), Boutaghou
patent: 2002/0114097 (2002-08-01), Kim
patent: 2002/0176211 (2002-11-01), Kim
patent: 2003/0086209 (2003-05-01), Kim
patent: 1 308 934 (2003-05-01), None
patent: 10-2002-0090056 (2002-11-01), None
patent: 2002-0090056 (2002-11-01), None
patent: 2003-0037568 (2003-05-01), None

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