Patent ID: 6507462
Filing Date: 2003-01-14
Classification: G11B

Abstract:
A disc drive comprising:a base plate; an information storage disc supported for rotation by a drive motor on the base plate; and a rotary actuator assembly mounted on the base plate adjacent the information storage disc, the actuator assembly having an actuator arm carrying a transducer at a distal end thereof and a voice coil motor operably attached to the actuator arm for movement of the transducer over the disc, the voice coil motor having a sheet metal top pole piece and a sheet metal bottom pole piece spaced from the top pole piece wherein an end portion of one of the pole pieces forms a curved, vertically extending shroud flange extending toward the other pole piece adjacent and in close proximity to an outer peripheral edge of the disc and having a shape complementary to the outer peripheral edge of the disc directing air-flow along the peripheral edge of the disc during drive operation.