| 摘要 |
<p>PURPOSE: To increase head speed at swing time, and stabilize a swing orbit in a golf club. CONSTITUTION: A golf club is manufactured so that the total weight W(g) and the angular moment M(g.cm) on the head part 3 side with point P1 of 35.56cm from a grip end 13a as a fulcrum satisfy the relationship of (M<15.6W+9500).</p> |
