Patent ID: 7158343

Claim:
A disk clamp of a hard disk drive firmly installing a disk to store data using a spindle motor of the hard disk drive, the disk clamp comprising: a vertical pressing portion, located along an edge portion of the disk, to press an upper surface of the disk in a vertical direction; a plurality of linear horizontal pressing portions, substantially perpendicular to a plane of the disk, integrally formed with, and inside the circumference of, vertical pressing portion to protrude downward and be inserted between an outer circumference of a hub of the spindle motor and an inner circumference of the disk, to press an inner circumferential surface of the disk outwardly; and a plurality of screw coupling holes formed inside the linear horizontal pressing portions, through which screws are inserted to be coupled to an upper end portion of the hub of the spindle motor, wherein the vertical pressing portion has a dome shape in which a center portion of the vertical pressing portion bulges upward, and when being coupled to the hub of the spindle motor by a screw, the vertical pressing portion is deformed to a flat shape, has a section bulging downward, and is formed along an outer circumference of the disk clamp, pressing the upper surface of the disk.