| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an iron golf club head capable of suppressing the floating of a leading edge and exiting excellently in a sand shot. <P>SOLUTION: For the iron golf club head 1, a loft angle is≥50 degrees and≤62 degrees and a groove-like part 4 extended in a prescribed direction is provided on the sole surface. In a projection image to a horizontal plane in a reference state of mounting the head 1 on the horizontal plane at a prescribed loft angle and a prescribed lie angle, the installation direction of the groove-like part 4 forms an angle less than 30 degrees to a track orthogonal direction d3 which is a direction vertical to the direction d2 of 30-degree outside-in. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
