Dynamic information storage or retrieval – Dynamic mechanism subsystem – Having power driven transducer assembly
Patent
1991-11-27
1993-06-01
LaRoche, Eugene R.
Dynamic information storage or retrieval
Dynamic mechanism subsystem
Having power driven transducer assembly
360105, 360106, G11B 2102, G11B 555
Patent
active
052166627
ABSTRACT:
A latch mechanism for locking an actuator arm in a disk drive includes a latch pivotably supported in the disk drive for engaging the actuator arm and an electromagnet for capturing and holding the latch to disengage the latch from the actuator arm. A spring is provided to bias the latch to engage with the actuator arm. A swivel plate is provided on the actuator arm and the electromagnet captures the swivel plate; in particular, the electromagnet has two poles and the swivel plate contacts one of the poles and an air gap exists between the swivel plate and the other pole. The air gap allows the electromagnet to release the swivel plate. The swivelling action of the swivel plate causes the swivel plate to seat with the entire surface of the one pole of the electromagnet, increasing the ability of the electromagnet to hold the swivel plate once the swivel plate has been captured.
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Bagnell Glade N.
Stefansky Frederick M.
Conner Peripherals, Inc.
LaRoche Eugene R.
Nguyen Tan
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