| 摘要 |
PROBLEM TO BE SOLVED: To provide an effective holding structure for preventing warp of a disc molding in the case of holding the molding having an annular stamper pressing groove on an inner periphery with a central hole. SOLUTION: The warp preventing holding structure for a disc molding comprises a fitting protrusion 21 in a central hole 11 of the molding 10, a product receiver 20 made of synthetic resin having a receiving surface 25 of an inner periphery of the molding 10 formed larger than a groove size (d) of a stamper pressing groove 12, a recess 31 for housing the protrusion 21 of the receiver 20, and a product presser 30 made of synthetic resin having a pressing surface 35 placed on an upper surface of an inner periphery 15 of the molding 10 supported to the receiving surface of the receiver 20 formed larger than the groove size (d) of the groove 12. |
