Patent ID: 7243357

Claim:
A disk device comprising: a first disk holder disposed at a predetermined position in a disk conveyance path extending from a disk inlet to a disk storing position, said first disk holder holding a part of a peripheral edge portion of a disk by a groove portion formed arcuately along the peripheral edge portion of the disk, said first disk holder being movable on a hinge in compliance with conveyance of the disk; a second disk holder for holding the disk grippingly in cooperation with said first disk holder when said first disk holder holds the disk; and a supporter which supports said first disk holder and which causes a support position for said first disk holder to be shifted in compliance with movement of said first disk holder, wherein said first and second disk holders contact both a large diameter disk and a small diameter disk, said first disk holder is moved by rotating on said hinge such that the first disk holder is positioned substantially perpendicular to the disk conveyance path and contacts the periphery of both the large and small diameter disks at a point opposite said second disk holder through the center of the disk in the disk conveyance path.