| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a golf club, with which directionality is improved and a flying distance is not dispersed, in the golf club having volume <=200 cm<3> . SOLUTION: In the metallic hollow golf club head, when the golf club head is grounded in accordance with a loft angle and a lie angle, a ratio of the value of inertia moment around an axis vertical to the surface of the ground through a center of gravity of a main body of head to the value of inertia moment around an shaft axis is from 1:1.5 to 1:2.5.</p> |
