Abstract: Disclosed is a disk clamping apparatus for a disk drive. The disk clamping apparatus includes a turntable that is driven by a spindle motor provided on a pickup base and on which a disk is seated, a clamp coupled with the turntable to fix the disk to the turntable with the disk seated on the turntable, and a frictional member causing the turntable, the clamp and the disk to integrally rotate, and closely contacted on a disk surface opposite to the spindle motor on the basis of the disk. The frictional member is provided on a bottom surface of the clamp and selectively brought into close contact with a top surface of the disk. Thereby, a distance between the disk seated on the turntable and the optical pickup can be accurately set, so that signal recording and reproduction of the disk drive are accurately performed. Further, no scratching occurs even when the disk is brought into contact with the clamp, so that damage to the disk is prevented.

Abstract: Disclosed is a clamping apparatus for a disk drive. The clamping apparatus includes a clamp selectively attached to a turntable to fix a disk, and formed with a hook wing protruding in a centrifugal direction along an outer circumferential edge thereof, a hook section provided with a clamp through-hole through which the clamp is penetrated and which has a diameter smaller than that of the hook wing, and hooking and supporting the hook wing of the clamp, and an unclamping protrusion provided one side between the hook section and the hook wing, and first contacted with the hook section or the hook wing when the disk is unloaded to apply unclamping force. The unclamping protrusion is located at a position most distant from a lifting center of a pickup base having the turntable on which the disk is seated.