| 摘要 |
<p>PURPOSE:To hit a ball in a target direction only for a target distance and to improve a golf score with exact batting by setting a second directional line, which crosses an optimum hit ball central line at a central point in the length- wise direction of a brade, and causing the sum of a first directional line and the second directional line to be about the 1.5 fold length of a golf ball diameter. CONSTITUTION:The first and second directional lines of a putter club are matched to a target directional line (X-X1) and the club is exactly soled. Then, eyes are put in a position so as to observe the first and second directional lines as one straight line. Thus, a target surface can be set. A first directional line 2 and a second directional line 3 go to be one straight line and the position of the eyes is set so as to be matched with the direction of a hole. Thus, the target surface can be set. Further, in order to the direction to be exacter, the first and second directional lines are made in the direction of the ball correctly. Here, when take back is executed and the ball is hit while a condition that the first and second directional lines 2 and 3 go to be one straight line is kept, the batting of correct directionality can be executed.</p> |
