Patent ID: 8352976
Filing Date: 2013-01-08
Classification: G11B

Abstract:
1. A disc chucking apparatus comprising: a centering base to which an inner circumferential surface of a disc is fixed; a plurality of chuck chips arranged at regular intervals along an outer circumferential surface of the centering base; and a plurality of elastic support parts disposed to be opposite to the chuck chips on the centering base, rotating horizontally when the disc is mounted, and pressing the inner circumferential surface of the disc in an outer diameter direction thereof, wherein each of the elastic support parts comprises a frame protruding from the centering base in the outer diameter direction; an elastic portion extending from the frame along an outer circumference of the centering base; and a claw formed at an end of the elastic portion to be in contact with the inner circumferential surface of the disc, wherein the frame has a lower surface disposed on a plane different to that of a lower surface of the centering base.