发明名称 GOLF CLUB HEAD
摘要 A golf club head 1 comprising a hollow head body 1b and a gravity center adjuster 14 fixed to the head body 1b and comprising a first weight member 15 and a second weight member 16 having a lower specific gravity than the first weight member 15, wherein the first and second weight members are provided in the head body 1b so that the locations thereof are exchangeable with each other, and a depth GL of the center of gravity which is a distance from the head's center of gravity G to a sweet spot SS of a face 2 can be changed by location exchange between the first and second weight members 15 and 16 without substantially changing a distance GK of the center of gravity which is the shortest distance from an axial center line of a shaft-inserting hole 7a to the head's center of gravity G.
申请公布号 US2012165115(A1) 申请公布日期 2012.06.28
申请号 US201113325457 申请日期 2011.12.14
申请人 MATSUNAGA KIYOFUMI 发明人 MATSUNAGA KIYOFUMI
分类号 A63B53/06;A63B53/04 主分类号 A63B53/06
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