Method for making box-shaped cases with self-closing slit in their bases from elastomers comprises injection molding them and cutting slit using cutter mounted on one mold half while molding remains in position on other half

摘要

Method for making box-shaped cases (1) with a self-closing slit in their bases (2) from elastomers comprises injection molding the case. A cutter (19) mounted on one of the mold halves is then used to cut the slit while the molding remains in position on the other mold half.