Patent ID: 8273281

Claim:
A golf ball mold comprising a plurality of mold parts which removably mate to form a cavity having an inner wall with a plurality of dimple-forming protrusions thereon, wherein a non-circular resin injection port for injecting into the cavity a resin material is formed between a plurality of mutually adjoining dimple-forming protrusions which include a plurality of dimple-forming protrusions that lie across a parting line of the mold and, when equally spaced lines are drawn at 0.05 mm intervals from an inner peripheral wall toward a center axis of a gate having the resin injection port, the cross-sectional size of the gate is adjusted so that the distance between the center of a region enclosed by the innermost equally spaced line and the inner peripheral wall of the gate is less than 0.5 mm, wherein the non-circular resin injection port has no rectilinear portions.