Patent ID: 7042671

Claim:
A disk apparatus comprising: a spindle motor which rotates a disk; an actuator, including a swinging distal end and a head that records in, and/or reproduces information from, the disk; a voice coil motor which swings the actuator to move the head along a substantially radial direction of the disk; a first magnetic circuit that generates a first magnetic force which acts to return the actuator to a parking position in which the head is off an effective region of the disk when the actuator is deviated from the parking position; and a second magnetic circuit that generates a second magnetic force which acts to return the actuator to a position in a range such that the actuator can be returned to the parking position via the first magnetic force when the actuator leaves the parking position and overpasses the range for the return, wherein the first and second magnetic forces are applied to the actuator at different swing positions of the actuator, and wherein the first and second magnetic bodies are spaced in the direction of the radius of swing of the actuator.