Medium attaching device and disk drive apparatus

摘要

There is disclosed a medium attaching device and a disk drive apparatus which are suited for a compact and lightweight design and a thin design, and are capable of automatic attachment of a disk. The device includes a rotary support device for holding a disk medium thereon, and a rotation drive device for rotating the rotary support means so as to rotate the disk medium. The rotation drive device includes a reciprocally-moving device for reciprocal movement in a direction of an axis of a rotation shaft. The rotary support device has a plurality of pivotal attaching devices pivotally mounted thereon, and each of the pivotal attaching devices is pivotally movable between a fixed position where the pivotal attaching device fixedly holds the disk medium and a received position where the pivotal attaching device is received in the rotary support device. The plurality of pivotal attaching devices are provided on the rotary support device in concentric relation to the axis of the rotation shaft. The pivotal attaching devices are engaged with the reciprocally-moving device, and are pivotally moved by the reciprocal movement of the reciprocally-moving device, thereby fixing and releasing the disk medium relative to the rotary support device.