发明名称 MOLD FOR MOLDING GOLF BALL, METHOD OF MANUFACTURING GOLF BALL AND GOLF BALL
摘要 PROBLEM TO BE SOLVED: To provide a golf ball having a thin cover and dimples even in a parting line, a mold for molding the golf ball and a method of manufacturing the golf ball. SOLUTION: The mold for molding a golf ball, at least three gates provided at least either of a pair of molds having a cavity or a mold matching portion and to supply a molten resin to mold a cover in the cavity, a supply gate provided at least three gates and supplying the molten resin to the cavity jointly with the gates, evacuation portions connected to the gates in the positions of the gates which do not hinder the supply of the molten resin, and movable pins provided movably in the evacuation portion and the gates and having ends with convexities corresponding to the shape of dimples advancing into the cavity. The respective supply gates can supply the molten resin into the cavity irrespective of the positions of the moveable pins. COPYRIGHT: (C)2007,JPO&INPIT
申请公布号 JP2007159715(A) 申请公布日期 2007.06.28
申请号 JP20050357850 申请日期 2005.12.12
申请人 YOKOHAMA RUBBER CO LTD:THE 发明人 SUGIURA MICHIHIKO
分类号 A63B45/00 主分类号 A63B45/00
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