| 摘要 |
PROBLEM TO BE SOLVED: To provide an automatic aligning device having a high accuracy, robustness and low noise even with a compact structure. SOLUTION: A centering member 30 made of a nonmagnetic material such as brass is fixed in the vicinity of an end side of a rotational shaft 20 projected from the center of a rotor yoke 10 made of a magnetic material such as an iron plate of the motor M. This centering member 30 includes a clamper magnet 40 for magnetically attracting the clamper for sandwiching a placing disc, and a turntable 50 made of a synthetic resin such as a polycarbonate resin on a side face of a base of the magnet 40, fixed to a central annular groove. COPYRIGHT: (C)2004,JPO
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