| 摘要 |
PURPOSE:To engage a disc with a lower chuck surely on the outside of a device body by providing a lower chuck body, which is engaged with the center part of the disc, in a disc supporting body which is projected to and drawn back from the front of the device body like a drawer. CONSTITUTION:A disc supporting body 6 which is projected to and drawn back from the front of a device body 1 like a drawer is provided with a lower chuck body 28, which is engaged with the center part of the disc, to engage the disc D with the lower chuck body 28 surely on the outside of the device body by a user. Further, it is sufficient if the disc supporting body is provided with the lower chuck body 28 because the disc is rotated by an upper chuck body 64. Thus, the device is made lightweight, and the driving force of projecting and drawing- back movement is reduced; and since the lower chuck body 28 is raised to press the disc D to the upper chuck body 64, it is sufficient if an ascending and descending body lifts the lower chuck body 28 and the disc, and the driving force of ascending and descending is reduced. |
