| 摘要 |
PROBLEM TO BE SOLVED: To prevent adhesion of stains to the interior of a deaerating hole or the peripheral region thereof. SOLUTION: A mold 10 is constituted of an upper mold 11 and a lower mold 12. An injection port 15 for injecting a molding material in a cavity space S from a material injection device 14 is formed to the upper mold 11 and the deaerating hole 16 of the cavity space S is formed in the upper mold 11. A tube 18 is attached to the degassing hole 16 in a detachable manner and the molding material leaked to the outside of the mold from the deaerating hole 16 passes through the inner passage 18A of the tube 18 to move upwardly in a drawing 1. The tube 18 has elasticity so as to be expanded and deformed outwardly by the injection pressure of the molding material when the molding material passes through the inner passage 18A in such a state that the inner passage 18A is closed and is formed of a light pervious material capable of visually confirming the molding material passing through the inner passage 18A. |
