Patent ID: 7957102

Claim:
A disk drive comprising: a disk drive base; a first fixed member in fixed spatial relation to the disk drive base; an actuator rotatably coupled to the disk drive base about an actuator pivot location; and a latch rotatably coupled to the disk drive base about a latch pivot location, the latch comprising: a catch portion interfering with actuator rotation with the latch in a closed position, the catch portion not interfering with actuator rotation with the latch in an open position; and a first stop portion being in contact with the first fixed member with the latch in the closed position, the first stop portion not being in contact with the first fixed member with the latch in the open position; a pusher portion being in contact with the actuator with the latch in the closed position and the actuator in an extreme rotational position, the catch portion and the pusher portion and the first stop portion together being a single component having material continuity rather than being an assembly of subcomponents; wherein the pusher portion has a torsional stiffness about the latch pivot location in the range 5 J A /rad·sec 2 to 30 J A /rad·sec 2 , where J A is the rotational inertia of the actuator about the actuator pivot location expressed in units of kg·m 2 , and the first stop portion has a torsional stiffness about the latch pivot location that is at least 5 times that of the pusher portion.