发明名称 GOLF CLUB SHAFT
摘要 A shaft full length is defined as Ls and a distance between a tip end of the shaft and a center of gravity G of the shaft is defined as Lg. In a shaft 6, Lg/Ls is 0.54 or greater and 0.65 or less. A shaft weight Ws is 50 g or greater and 85 g or less. The shaft 6 has at least three bias layer pairs. One bias layer pair of the three bias layer pairs is a pitch-containing bias layer pair having a pitch based carbon fiber. Two bias layer pairs of the three bias layer pairs are PAN-containing bias layer pairs having a PAN based carbon fiber. Preferably, the PAN-containing bias layer pairs are located outside and inside the pitch-containing bias layer pair.
申请公布号 US2013165250(A1) 申请公布日期 2013.06.27
申请号 US201213724940 申请日期 2012.12.21
申请人 DUNLOP SPORTS CO., LTD.;DUNLOP SPORTS CO., LTD. 发明人 TAKEUCHI HIROYUKI
分类号 A63B53/10 主分类号 A63B53/10
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