Patent ID: 6532138
Filing Date: 2003-03-11
Classification: G11B

Abstract:
A mechanism for producing a minute movement of a head, provided between a base portion of a head suspension having the head at an end portion thereof, and an end portion of a carriage arm swinging around a rotation shaft in a rocking type head actuator, said mechanism comprising:a stationary member, fixed to said end portion of said carriage arm; a moving member, attached to said base portion of said head suspension; and a displacing member, interposed between a predetermined surface area of a tip portion of said stationary member and a predetermined surface area of said moving member opposed to said stationary member, having a top surface to be displaced with respect to a bottom surface thereof by applying a voltage in a direction of thickness thereof, wherein said displacing member is interposed between a free-end of said stationary member and an end of said moving member adjacent said carriage-arm, so as to position said displacing member in a dead space delineated generally by the thickness of said carriage arm, to which said base portion of said head suspension is attached.