| 摘要 |
An optical disk adapter can position a deformed CD at a predetermined position in a disk-transferring tray by a very simple operation, and is simple in structure and easy in manufacture. At the central portion of an adapter main body (1a) having an external periphery with the same diameter as a 12cm-CD, a positioning true circular central aperture (2) in which a square CD (C1) with an 8cm-diagonal length can be fitted in a non-restricted state is provided. The center of this positioning true central, aperture (2) is concentric with the center of the adapter main body (1a). The adapter main body (1a) is provided with a rotation prevention protrusion (3) against the disk-transferring tray (71) at the lower surface thereof and a disk clamper passing dented portion (4) at the upper surface thereof. The rotation prevention protrusion (3) has a thickness which can serve as an optical disk entering prevention protruded portion, and is provided with a protrusion (5) which comes into contact with a chassis (82) of a driving unit (81) in a cabinet at a lower surface thereof, whereby the rear end of the adapter is lifted from the 12cm-disk placing dented portion (72) when the driving unit (81) is lifted. <IMAGE>
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