| 摘要 |
A disc clamp device comprises a turntable formed at its center with a concave portion, an elevatable frame with a shaft, and a clamp member mounted on the shaft. The clamp member has in an integral form an arm supported by the shaft, pressing faces formed at the tip of the arm in opposition to the turntable, and guide portions extending from the inside of the pressing faces in the direction of fitting in the concave portion of the turntable.
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