Patent ID: 6252747
Filing Date: 2001-06-26
Classification: G11B

Abstract:
A disk apparatus comprising:a read/write head for reading information from or writing information to a recording disk;a movable head carriage for supporting the head thereon, the head carriage having a first and a second side and bearing portions provided on said first side thereof;at least a first guide shaft provided on said first side of the head carriage, said first guide shaft having a centerline parallel to a direction of a movement of the head relative to the disk, said bearing portions of the head carriage being fitted to said first guide shaft in order to guide the movement of the head when the head carriage is shifted;a second guide shaft provided on said second side of said head carriage for slidably supporting said second side of said head carriage; anda voice coil motor, having a coil attached to said first side of the head carriage, for shifting the head carriage in one of the radial directions of the disk by exerting an actuating force on the head carriage, the coil of the voice coil motor having a centerline along which the actuating force of the voice coil motor is exerted to shift the head carriage,wherein the center of gravity of the head carriage is positioned opposite to the centerline of the coil along which the actuating force of the voice coil motor is exerted, with respect to said centerline of said first guide shaft.