To provide an injection mold constituted so as not only to suppress the occurrence of a weldline by a simple structure but also to alter the weldline to an inconspicuous position.
In the injection mold 10 for injecting a molten resin in a cavity 28 from a gate 26, a fin 45 with which the molten resin collides is provided to the gate 26 so that the angle of the collision of the molten resin is variable. The recessed part of an injection-molded product or a hole part forming projection 29 is provided in the cavity 28 of the injection mold 10 on the forward extension of the gate 26. The gate 26 has a shape expanded toward the projection 29 in the cavity 28 and the fin 45 is provided to the expanded shape part 27. The fin 45 is formed to the surface of a disc-shaped rotary member 41 in a protruded state and the disc-shaped rotary member 41 is rotatably mounted on the cylindrical member 32 fixed to the gate 26.
MORI TAKAAKI
OKAMOTO SHINJI
ISHIDA YOSHIYUKI
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