| 摘要 |
PROBLEM TO BE SOLVED: To vertically set a small-diameter disk in the disk tray of a standing posture properly. SOLUTION: In the disk tray 3 of a standing posture having a shallow groove disk housing part 11 in which at least a large-diameter disk is set, a small-diameter disk Ds is set via a disk attachment 4 loaded in the disk tray 3. The disk attachment 4 is provided with an attachment main body 31 arranged between the set small-diameter disk Ds and the peripheral wall 16 of the disk housing part 11 to be detachably attached to the disk housing part 11, and a disk setting part 32 formed in the inner side of the diameter direction of the attachment main body 31 to set the small-diameter disk Ds in a supported state. COPYRIGHT: (C)2007,JPO&INPIT
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