Patent ID: 7454765

Claim:
An optical disc drive comprising: a tray comprising a mounting portion on which a disc is mounted; a spindle motor comprising a turntable that supports a first surface of the disc and which is installed to have access to or be spaced apart from the disc; and a clamping mechanism, which faces the turntable, to support a second surface of the disc, and is rotated, wherein the clamping mechanism comprises: a clamper, which has access to the disc by a magnetic force when the spindle motor has access to the disc; and a return member, providing a force less than the magnetic force to the clamper in a direction in which the clamper is separated from the turntable so that the clamper comes closer to the disc when the spindle motor is ascending with the disc, the clamper is separated from the disc when the spindle motor is descending, and thereby preventing the disc from deviating from the mounting portion of the tray when clamping and unclamping operation is performed, wherein the return member is an elastic member, which elastically biases the clamper in a direction in which the clamper is spaced apart from the disc.