| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a golf club head and a golf club suppressing the maximum value of a restitution coefficient and having an enlarged sweet area. <P>SOLUTION: This golf club head 100 has a metal outer shell structure composed of titanium and includes a face part, a crown part 20, a sole part 30, a heel part 40, a toe part 50, and a back part 60. The minimum curvature radius in the outer face side of a boundary part between the face part and the crown part 20 and the minimum curvature radius in the outer face side of the boundary part between the face part and the sole part 30 are not less than 6mm and not more than 20 mm. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
