| 摘要 |
<p>PROBLEM TO BE SOLVED: To lower a leading edge while maintaining the effect of having a bouncing angle above a prescribed angle. SOLUTION: The horizontal line H which passes above the lowermost point 7a of the leading edge 7 and intersects with a flying line at the time of addressing is assumed and the respective intersected points on a tow 4 side and heel 5 side where this horizontal line H intersects with the lower edge 6A of a chamfered part 6 are defined as A, B. The bouncing angle of the sole 1 existing between these intersected points A and B is defined asαand the respective bouncing angles of the sole 1 existing nearer the toe 4 side and heel 5 side than the intersected points A, B are defined asβ. These angles are then so set as to attainα<β.</p> |
