Patent ID: 6078469
Filing Date: 2000-06-20
Classification: G11B

Abstract:
An actuator assembly for an information storage device, comprising:an actuator block having a connection hole formed therein, the connection hole having a perimeter edge of predetermined shape, the predetermined shape of the actuator block connection hole having a non-circular portion;an elongated arm extending from the actuator block, the elongated arm having a connection hole with a perimeter edge of predetermined shape and aligned with the actuator block connection hole, the predetermined shape of the elongated arm connection hole having a non-circular portion; andan expandable key that is separate from the actuator block and the elongated arm, wherein the expandable key is inserted in the actuator block connection hole and the elongated arm connection hole and transversely expanded to engage at least the non-circular portion of the perimeter edge of the actuator block connection hole and at least the non-circular portion of the perimeter edge of the elongated arm connection hole to provide a mechanical interface between the expandable key and the actuator block and the elongated arm, the mechanical interface securing the elongated arm to the actuator block and for preventing rotation between the elongated arm and the actuator block, the expandable key comprising:a key member having a longitudinal bore, the key member being inserted through the actuator block connection hole and the elongated arm connection hole; anda driver pin inserted in the longitudinal bore of the member, the driver pin engaging and transversely expanding the key member into an expanded state wherein the key member engages the non-circular portion of the perimeter edge of the actuator block connection hole and the non-circular portion of the perimeter edge of the elongated arm connection hole.