Abstract: A disk drive includes a stop, a head stack assembly and a latch having a latch arm that is movable between a closed position and an open position. The latch includes a first retainer that urges the latch arm toward the open position, and a second retainer that urges the latch arm toward the closed position. The latch includes a mover that contacts the latch arm upon a sufficient shock to the disk drive and causes the latch arm to move to the closed position. The disk drive includes an actuator motor that momentarily urges the head stack assembly against the latch during startup of the disk drive, thereby moving the latch arm to the open position.

Abstract: A vehicle rooftop storage unit includes a rack portion which is permanently installed to the roof of the passenger vehicle at manufacture, or which may be installed as an aftermarket article after vehicle manufacture. A separate container portion is removably securable within the rack portion. The rack portion includes a generally rectangular rail, with the front and side members being fixed in position, and the rear member being hinged to the rear end of one of the side members. The rear member may be locked to the opposite side member to close the rail structure, and thereby capture the container portion within the rack rails. The rack portion captures the container portion by a tongue formed along the inner face of the rail, which engages a mating peripheral groove in the container portion; the tongue and groove configuration may be reversed between container and rack rail, if desired.