Patent ID: 7286327

Claim:
An actuator latch mechanism of a hard disk drive, the actuator latch mechanism locking an actuator when the hard disk drive is not operating, the actuator including a swing arm rotatably installed to a base member, a Voice Coil Motor (VCM) coil coupled at one end portion of the swing arm, and a magnet facing the VCM coil, the actuator latch mechanism comprising: a notch portion protruding from the one end portion of the swing arm; a latch lever pivotally installed to the base member and having a hook engaging the notch portion at the one end portion of the swing arm when the actuator is locked; a protrusion protruding from an edge of the magnet toward the latch lever; a first iron core installed in the one end portion of the swing arm and applying a first torque to the swing arm by a flux generated from the protrusion; and a second iron core installed at one end of the latch lever and applying a second torque to the latch lever by the flux generated from the protrusion.