发明名称 |
GOLF-CLUB SHAFTS HAVING SELECTABLE-STIFFNESS TIP REGIONS, AND GOLF CLUBS COMPRISING SAME |
摘要 |
The subject golf clubs have a shaft and clubhead. The shaft has a tip-end coupled to the clubhead, a butt-end, a reduced-EI portion located adjacent the tip-end, and a remaining portion extending between the butt-end and the reduced-EI portion. The portions are coupled together at an interface. The remaining portion exhibits a respective rate of stiffness reduction as a function of distance from the butt-end. The reduced-EI portion is typically shorter than and has less stiffness than the remaining portion. The reduced-EI portion exhibits a respective rate (which can be zero) of stiffness reduction as a function of distance toward the tip-end. These rates can be similar or different. The interface can exhibit a greater rate in stiffness reduction than the other portions.
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申请公布号 |
US2011312435(A1) |
申请公布日期 |
2011.12.22 |
申请号 |
US201113218268 |
申请日期 |
2011.08.25 |
申请人 |
DESHIELL DREW TOM;BEACH TODD P.;TAYLOR MADE GOLF COMPANY, INC. |
发明人 |
DESHIELL DREW TOM;BEACH TODD P. |
分类号 |
A63B53/12;A63B53/00;A63B53/10 |
主分类号 |
A63B53/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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