Patent ID: 8220179

Claim:
A disc drying device for spin-drying a disc having a central opening, comprising: a disc chuck mechanism for simultaneously chucking outer peripheries of a plurality of the discs erected with respective centers of the discs arranged along a single axis, leaving a predetermined space therebetween; a water receiving cover of a cylindrical shape, for externally covering the plurality of chucked discs, the water receiving cover with valley grooves being formed corresponding to the outer peripheries of the chucked discs, circumferentially in a plane perpendicular to the cylindrical axis, in an inner wall surface of the water receiving cover; and a plurality of pairs of nozzles provided corresponding to the plurality of discs for heating the chucked discs, the pairs of nozzles being disposed inside a space formed by the central openings to supply hot water to two sides of an inner peripheral surface adjacent to the central opening of each of the discs, the pairs of nozzles and the water receiving cover being removably mounted on the chucked discs, wherein the discs with the pairs of nozzles and the water receiving cover mounted rotate about the respective centers thereof in response to rotation of the disc chuck mechanism, and are supplied with the hot water from the pairs of nozzles; and the hot water flows from the inner peripheral surfaces to the outer peripheries of the discs by centrifugal force to be outwardly discharged, the discharged hot water flowing through the valley grooves to be discharged to the outside from an opened side surface of the water receiving cover.