| 摘要 |
PROBLEM TO BE SOLVED: To realize the optimization or the like of a loading operation or an ejecting operation. SOLUTION: This device is provided with a disk loading part 13 for loading a disk 300 (400), a chucking plate 150 for chucking a disk with the disk loading part, having a disk engaging part 151a engaged with the disk at the time of starting disk loading, and a supporting slider 200 for supporting the chucking plate, moved in the radial direction of the disk to move the chucking plate between a chucking preparation position for chucking the disk and a loading preparation position for starting disk loading.
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