| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for preventing the deflection of a master model when a resin for a resin mold is injected to produce the resin mold. SOLUTION: The resin 61 for the resin mold is injected from a resin injection hole 51 formed in the second back reinforcing material 50 into the second resin packing space 57, the injection is stopped when the resin 61 has ascended to a resin ascent hole 52, and the resin 61 is allowed to stand to be cured. During the time, since a downward load which is the weight of the resin 61 injected in the space 57 plus the pressure of the injection is applied to the master model 30, the master model 30 can be deflected downward. However, since the lower surface of the master model 30 is supported totally by a provisional filler 59, the master model 30 is prevented from being deflected downward. |
