Patent ID: 7545599

Claim:
A disk drive, comprising: a base accommodating a head assembly, a circuit unit, and a recording medium; a top cover portion supported by the base at a plurality of inner points of support and peripheral edge points of support on a peripheral edge portion near a portion accommodating the head assembly and the circuit unit, the top cover portion covering the accommodating portion of the base, the head assembly being rotatably supported within the base and a rotational axis of the head assembly being secured to the top cover; and a vibration suppression member disposed in a polygon having as vertices a plurality of inner points of support, and of the peripheral edge points of support, the peripheral edge points of support near the portion accommodating the head assembly and the circuit unit, at a corresponding position in the polygonal portion corresponding to an area near a loop of vibration in a surface of the top cover, the vibration suppression member functioning to suppress the vibration of the top cover portion, wherein the vibration suppression member includes a supporting body for supporting the top cover at the corresponding position, wherein the supporting body is at a part of a structure of the circuit unit and in contact with the top cover portion at the corresponding position.