| 摘要 |
PURPOSE: To improve the operability at the time of setting an insert component and removing a core. CONSTITUTION: A supporting hole 13 is formed at a core 7 detachably engaged with an upper mold 5, and a seal ring 14 is fixedly stuck to the inner periphery of the hole 13. The injection molding is conducted in the state that the bolt 2 of the insert component is press injected at the ring 14. After the molding, a molding 1 is released together with the core 7, and the core 7 is drawn from the bolt 2 integrated with the molding 1. |
