Disk device

Abstract

A disk device, wherein a disk clamp unit is further thinned. The disk device is provided with a spindle motor (300) for positioning and rotating a disk, an alignment ring (301) fixed to the rotating shaft of the spindle motor, and a clamp section (400) for mounting the disk on the spindle motor (300). The alignment ring (301) is provided with a projection section (301C) formed around the rotating shaft of the spindle motor (300), and a magnet (302) provided around the rotating shaft with a space provided between the magnet (302) and the projection section (301C). The clamp section (400) is provided with a center member (401) having formed therein a recessed space (401G) in which the projection section (301C) is fitted, and also with a member (402) to be attracted which is attracted by the magnet (302). The clamp section (400) is adapted in such a manner that the disk is mounted on the spindle motor (300) when the projection section (301C) is fitted in the recessed space (401G) and attracted by the magnet (302).

Dependencies are inferred from the claim text.