| 摘要 |
PROBLEM TO BE SOLVED: To mold a molding having irregular part serving as large undercuts on an inner periphery of a CVJ boot or the like, by injection molding.SOLUTION: A plurality of pairs of split molds for molding the inner peripheral surface of a molding are radially disposed around a core, each pair of the split molds is axially moved in order, and the split molds are moved in the radial direction in a space formed between the axially moved split molds to release the mold. The moving distance in the radial direction is made large and the irregular part is easily released. |
