| 摘要 |
<p>A golf club with a hollow shaft (12) with a bore (16) therein, a club head (24) at one end of the shaft (12) and possibly a grip (36) at the other end. A short length plug (30) of a diameter slightly greater than the inner diameter of the bore (16) is forced into the bore (16) to a point of usage (32) selectively at or away from the center of flexure of the club (10). The location of the plug (30) is selected to adjust the recovery of the club shaft (12) by creating a stress field at the point of usage (32).</p> |
