| 摘要 |
PROBLEM TO BE SOLVED: To provide an injection mold, with which a molded product even having a thin wall part can be molded by low pressure under the condition that the development of sinkmarks and the development of the warpage deformation and the like of the molded product are few. SOLUTION: In an injection mold 1, in which a cavity 12 corresponding to the shape of a molded product 2 having a thin wall part at least in some part of it, in order to form a cavity 12 part at the thin wall part 21, a core 11, which can advance towards and retreat from the thin wall part 21, is provided. In this case, the smooth filling of a resin can be realized and, at the same time, after the completion of the filling, the core is advanced, resulting in allowing to molding a molding even having a thin wall part by low pressure under the condition that the development of sinkmarks and the development of the warpage, deformation and the like of the molded product are few.
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