| 摘要 |
<p>The invention comprises a set of golf clubs designed to suit a particular swing, each golf cluf of the set having an effective length and a total weight, wherein the product of the effective length and total weight is substantially the same for each club in the set, and wherein the clubs of the set each have a shaft incorporating a stiffness factor differing from club to club and functionally related to the speed of the swing of the club. The invention also includes the method and apparatus for manufacturing the golf clubs of which the set of clubs is constituted.</p> |
