Patent ID: 6088193
Filing Date: 2000-07-11
Classification: G11B

Abstract:
A latch for use in a disc drive of the type having a storage disc with a parked location and a data storage location and an actuator which supportingly moves a read/write head between the parked location and the data storage location, the actuator having a stop pin, the latch comprising:a base member supported by the disc drive;a latch pawl pivotally supported by the base member and movable between a latched mode and an unlatched mode, the latched mode providing the latch pawl in operable engagement with the actuator to retain the read/write head in the parked location, the unlatched mode providing the latch pawl in operable disengagement with the actuator to permit moving the read/write head to the data storage location, the latch pawl having a groove with a latching surface and an unlatching surface, wherein the actuator pressingly engages the stop pin against the latching and unlatching surfaces to effect the latched mode and the unlatched mode, respectively, and wherein the stop pin is retained in the groove while the latch pawl is in the latched mode; anda latch pole supported by the latch pawl for urging the latch pawl to the latched mode and to the unlatched mode, wherein the read/write head is moved from the data storage location to the parked location by moving the stop pin laterally to contact the latching surface with sufficient force to rotate the latch pawl to the latched mode.