| 摘要 |
PURPOSE:To prevent the play of a disk and to facilitate replacement of the disk at automatic playing by regulating the upward shift of the disk, which is placed on a recessed placing part having an approximately same inner diameter as the outer shape of the disk formed on a tray, through the bottom of the right above tray. CONSTITUTION:In order to place the disk 2 in the center of the trays 1A..., the recessed placing part 3 having the same diameter as that of the disk 2 and an opening part 4 into which a spindle motor or a clamper inserts at playing are provided in the center. After the disk 2 is placed on the placing part 3 of the tray 1D, for instance, taken out of a magazine 18, it is press-returned in its original direction. Then the guide part 12 of the tray 1D is guided and contained by a partitioning groove 24 of a magazine comprising body 19, and upper and lower steel balls 9 are put into the oblong hole 10 of the tray 1D, whereby the outer peripheral upper surface of the disk 2 is pushed by the lower surfaces of partitioning plates 23 and 30. Thus the vertical play on the disk 2 can be eliminated.
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