Disk drive including an actuator latch with a torsionally...

Dynamic magnetic information storage or retrieval – Head mounting – For moving head into/out of transducing position

Reexamination Certificate

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Details

C360S256200, C360S265100

Reexamination Certificate

active

07957102

ABSTRACT:
A novel actuator latch includes a catch portion interfering with actuator rotation with the latch in a closed position. The latch includes a first stop portion that is in contact with a fixed member with the latch in the closed position. The latch includes a pusher portion that is in contact with the actuator with the latch in the closed position and with the actuator in an extreme rotational position. The pusher portion has a torsional stiffness about the latch pivot location in the range 5 JA/rad·sec2to 30 JA/rad·sec2, where JAis the rotational inertia of the actuator about the actuator pivot location expressed in units of kg·m2. The first stop portion has a torsional stiffness about the latch pivot location that is at least 5 times that of the pusher portion.

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