Patent ID: 6246654
Filing Date: 2001-06-12
Classification: G11B

Abstract:
A disk device comprising:a disk tray for receiving a disk-shaped recording medium rested thereon and for loading and unloading said disk-shaped recording medium into and out of a device body,a disk table elevated from a descended position to an ascended position after loading of said disk-shaped recording medium, and fitted into a central hole in said disk-shaped recording medium from below, thereby floating said disk-shaped recording medium above said disk tray,a disk clamper formed of a non-magnetic member, supported by a clamper support member in a position above said disk-shaped recording medium, and magnetically attracted by said disk table, which has been fitted into the central hole in said disk-shaped recording medium, to be held in a floated state above said clamper support member and to chuck said disk-shaped recording medium onto said disk table,a magnet embedded in an upper central portion of said disk clamper and magnetized in the vertical direction, andan upper magnetic member disposed above said disk clamper for attracting said disk clamper to a position above a chucked position of said disk-shaped recording medium under magnetic attracting forces of said magnet when said disk tray is in an unloaded condition,said disk table coming close to said magnet when said disk-shaped recording medium is in the chucked position, so that said disk clamper is attracted onto said disk table under the magnetic attracting forces of said magnet.