| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for simply molding a vent hole even at the time of forming a plural layer structure at a shoe bottom by effectively ensuring air permeability to mold the hole at the shoe bottom of an injection molded shoe, and scarcely wearing a last mold. SOLUTION: A space for molding a tape S1 is formed by a last mold 2, side mold 3 and bottom mold 4, and simultaneously ends of a plurality of pins to be energized by a spring vertically slidably to the mold 4 are brought into contact with an inner sole K1 of the mold 2 side, shoe bottom material is injected to mold the tap S1. Then, the mold 4 is lowered, a space for molding a sold S2 is formed, simultaneously the state that ends of the pins are in contact with the sole K1 is set, the shoe bottom material is injected to mold the sole S2. And, positions of the pins are formed as vent holes (t). |
