| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a mold which prevents the occurrence of the problem of an undercut using a compression molding method and can finish perforations of the joint between a cap body and a PP ring or a flange completely without passing through a cutting process, a plastic resin-made cap, and a container fitted with the cap. <P>SOLUTION: In the cap molding mold for molding the cap body having a top surface part and a skirt part and a pilferproof ring which is molded integratedly with the lower end of the skirt part and jointed to it or the plastic resin-made cap having the flange by the compression molding method, the cavity of the mold has a recess which makes the outside diameter of the skirt part R1, the outside diameter of the pilferproof ring or the flange R2 (R1<R2), and the core of the mold has a projection which makes the inside diameter of the skirt part R3 (R3<R1) and the inside diameter of the pilferproof ring or the flange R1. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
