发明名称 ゴルフボール成形用金型、その金型を用いたゴルフボールの製造方法、およびその金型で成形したゴルフボール
摘要 A golf ball that, in the process of spherical grinding after forming, can maintain the dimple shape and achieve the designed dimple surface occupation ratio. A mold for forming a golf ball of the present invention has at least two body parts, a cavity being formed within the mold by the joining of the at least two body parts, the body part comprising a cavity wall surface which has a spherical surface shape with the center thereof being at the center of the cavity and dimple-forming protrusions provided on the cavity wall surface, the dimple-forming protrusions being connected to the cavity wall surface at an angle of about 60 or more degrees in a region from about 3μm to about 20μm from the cavity wall surface.
申请公布号 JP5643631(B2) 申请公布日期 2014.12.17
申请号 JP20100279305 申请日期 2010.12.15
申请人 发明人
分类号 A63B45/00;A63B37/00;A63B37/04 主分类号 A63B45/00
代理机构 代理人
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