| 摘要 |
To provide a disk selecting device and disk device which require only a small space and can prevent an erroneous selection of disks. The disk selecting device comprises a plurality of trays 250 for holding a plurality of disks D respectively, and a mechanism for separating a tray 250, which is the object of selection, from other trays 250 comprises: a drum gear 211 which is provided in the vicinity of the trays 250 and rotated by a drive mechanism; a cylindrical drum cam 210 into which the drum gear 211 is inserted; a disk selecting cam groove 210-1 which is formed on a periphery of the drum cam 210 and leads the tray 250, which is the object of selection, in a direction of separating the tray 250 from other trays 250; and a drum sleeve 212 which is provided between the drum gear 211 and the drum cam 210, permits the rotation of the drum cam 210 so that the disk selecting cam groove 210-1 is withdrawn from the trays 250 which are not the object of selection, and transmits drive power from the drum gear 211 to the drum cam 210.
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