| 摘要 |
PROBLEM TO BE SOLVED: To place an information-recording disk on a turntable with a simple structure surely and accurately. SOLUTION: A ring-shaped magnet accommodating part 1b is formed by alternately arranging a shaft-inserting aperture boss part 1a, fixed center guiding parts 1d and movable centering pawl parts 1e at the center of the disk-placing face 1f of a plastic turntable 1. Magnet-pushing pawls 1c are provided on the side of the inner circumference of the center guiding parts 1d. Hemispheric projections 1h are arranged with a good balance on the upper surfaces 1g of the circumferences of the center guiding parts 1d.
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