Patent ID: 6249506
Filing Date: 2001-06-19
Classification: G11B

Abstract:
A medium attaching device comprising rotary support means for holding a disk medium thereon, and rotation drive means for rotating said rotary support means so as to rotate said disk medium;wherein said rotation drive means includes reciprocally-moving means for reciprocal movement in a direction of an axis of a rotation shaft;wherein said rotary support means has a plurality of pivotal attaching means pivotally mounted thereon, and each of said pivotal attaching means is pivotally movable between a fixed position where said pivotal attaching means fixedly holds said disk medium and a received position where said pivotal attaching means is received in said rotary support means so that a claw portion of said pivotal attaching means retracts into said rotary support means, and said plurality of pivotal attaching means is provided on said rotary support means in concentric relation to the axis of said rotation shaft; andwherein said pivotal attaching means is engaged with said reciprocally-moving means, and is pivotally moved by the reciprocal movement of said reciprocally-moving means, thereby fixing and releasing said disk medium relative to said rotary support means.