| 摘要 |
PURPOSE:To enable to fix a disc on a turn table with very simple operation, by projecting a plurality of retaining levers from a column aperture to external part, and pressing the disc surface with this projected retaining levers. CONSTITUTION:A rotating shaft 27 is fixed with turn tables 24, 25, and at the center of the table 24, a column 23 fixed to the table 24 with screws 33, 34 is provided. The column 23 is guided to the circumference and fixed on the table 24 so that the center of a disc 2 located on the turn table is in agreement with the center of a shaft 27. Further, the column 23 is provided with openings 35, 36 to project retaining levers 16, 17 contained in the internal space of the column 23, from the column 23 to external part, and further, in the column 23, a housing chassis 22 is provided and it is fixed with the turn table 24. Thus, the fixing and release operation of a disc can simply be made. |
