发明名称 Composite golf club shaft having low moment of inertia
摘要 In a preferred embodiment, a shaft for a golf club, the shaft including: tip and butt ends defined at opposite distal ends of the shaft's length; and the shaft having a balance point axially spaced from the tip end a distance in the range of from about 56 percent to about 58.5 percent of the shaft's length. In another preferred embodiment, there is provided a composite shaft for a golf club, the shaft including: tip and butt ends defined at opposite distal ends of the shaft's length; the shaft being tubular and tapering generally from a larger diameter at the butt end to a smaller diameter at the tip end; the shaft being constructed primarily of a first material having a first modulus of elasticity; and two, spaced apart cylinders of a second, reinforcing material, having a second modulus of elasticity greater than the first modulus of elasticity, disposed axially in the first material, the cylinders being disposed either side of a point axially spaced from the tip end a distance in the range of from about 45 percent to about 52 percent of the shaft's length.
申请公布号 US5776008(A) 申请公布日期 1998.07.07
申请号 US19960774466 申请日期 1996.12.30
申请人 LUNDBERG, HARRY C. 发明人 LUNDBERG, HARRY C.
分类号 A63B53/10;(IPC1-7):A63B53/10;A63B53/12 主分类号 A63B53/10
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