| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize a disk clamping mechanism and to facilitate the displacement of a clamper. SOLUTION: A clamper 22 nips and clamps the cartridge of a mini disk between the clamper and a drive chassis 23. The clamper 22 has horizontal shafts 24 protruding outside in a width direction. The horizontal shafts 24 are fitted into the grooves of direction regulating parts 25 provided on the drive chassis 23. The horizontal shafts 24 receive restriction in a displacement direction so that the displacement is possible only in the direction of the rotation axis of a turntable. The clamper 22 and the drive chassis 23 are pulled by a coil spring 29, thereby, the height H2 of the drive chassis 23 is reduced, a necessary space is reduced, and cost reduction based on the miniaturization is achieved. A bias is added to the coil spring 29 so as to carry out pulling in a direction which inclines from the rotation axis, thereby, the displacement is smoothly restricted.
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