| 摘要 |
PURPOSE:To hold an information recording disk fixedly, easily, and speedily while eliminating the need for an adapter for loading the information recording disk on a motor shaft, by fixing and holding the information recording disk fitted around the motor shaft in interlocking with the motion of a lid body, to a specific position on a turntable. CONSTITUTION:To fix the information recording disk 10 at the specific position on the turntable 16, a spindle 40 is inserted into the center hole 12 of the information recording disk 10, which is then mounted on the receiving surface 52 of the turntable 16. Then, a movable holder 46 is pressed by a holder part 26 to be lowered into the spindle 40, three respective clamper arms 42 in the spindle 40 fixed to the movable holder 40 spread in radius directions of the spindle 40 to project intermediate joint parts of the clamper arms 42 out of the spindle 40, and the circumferential part of the center hole 12 of the information recording disk 10 is pressed at angle intervals of 120 degrees uniformly and slantingly from above to align the center axis of the disk 10 to the center axis of the spindle 40, pressing and fixing the disk onto the turntable 16. |
