| 摘要 |
PURPOSE: A disc tray of disc player is provided to use a polygonal disc as well as normal circular disc by improving structure to be able to load a name type disc and circular disc. CONSTITUTION: A disc tray(200) is composed of a first circular loading groove(210) to be able to load a circular disc of diameter 120mm, a second circular loading groove(220) to be able to load a circular disc of diameter 80mm, and a polygonal loading groove(230) to be able to load a name card type disc(2). A central part of the polygonal loading groove(230) is overlapped to hold the second circular loading groove in common, and four edge part is protruded from these and composes of quadrangle. A long side(L1) of the second circular loading groove(230) is located in a direction which the disc tray enters into a main body, and a short side(L2) is located in a direction to be vertical with the long side(L1)
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