Disc clamping device

摘要

A disc clamping device which includes at least one main body piece fixed to an end of a cylindrical main body and abutted against the outer peripheral edge of a disc, a plunger slidingly disposed in the cylindrical main body, a shaft fitted to an end of the plunger and an extreme end piece attached to an end of the shaft and pressed against the peripheral edge of the center hole of the disc, is further provided with stop means for positioning the extreme end piece on the shaft according to a diameter of the disc and turning prevention means screwed to the other end of the plunger so as to prevent the turning of the shaft. With this arrangement, the disc clamping device can cope with discs having various diameters and further the occurrence of warp and scratch of the disc can be prevented.