| 摘要 |
PROBLEM TO BE SOLVED: To provide a hollow body molding device capable of easily separating an unnecessary part coupled to a hollow molding body, which is coupled after molding, relative to a conventional art.SOLUTION: When a floating core 18 extrudes a molten resin 14 and is stored in a floating corre storage part D, the molten resin 14 which is a thin tubular shape and thinner than a thickness T1 of a hollow molding body 10, namely, a thin part 10a is formed on an inner wall face of the floating core storage part D by the floating core 18. Therefore, after molding, in the floating core storage part D, the thin part 10a which is the thin tubular shape part for connecting the hollow molding body 10 molded in a main cavity A and an unnecessary part molded in a communication path C, is formed, so that, the unnecessary part coupled to the hollow molding body 10 via the thin part 10a, can be easily separated by a manual work or the like, easily relative to a conventional art.SELECTED DRAWING: Figure 4 |
