Patent ID: 6256165
Filing Date: 2001-07-03
Classification: G11B

Abstract:
A covering device of a hard disk drive including a spindle motor having a rotating shaft for rotating a disk, an actuator pivoting about a pivot shaft and having at its distal end a head for reading/writing data while pivoting over the disk, a base for mounting the spindle motor and the actuator thereon, and a cover locked to the base and made of plastic, the covering device comprising:at least one thin plate attached to the cover such that it is coaxially arranged with the rotating shaft and/or the pivot shaft, for dampening vibration and noise transferred from around the rotating shaft and/or the pivot shaft to the cover, wherein the thin plate has a circular bottom wall portion having a center opening, a cylindrical side wall portion integrally formed at its lower end with the bottom wall portion, and an outward flange portion formed at an upper end of the cylindrical side wall portion and having a plurality of slits which extend radially and are circumferentially spaced apart one from another.