| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the flying distance of a golf ball by giving a further striking power to the golf ball from a striking power giving member through a face member, when a golf ball is struck hard with a face member of a club head by the swing action of a player, and the striking power giving member collides with the back side of the face member following this. SOLUTION: A striking power giving member 3, which can collide with the inner surface that is at the back of a striking surface of a face member 2, is placed movably in a club head 1b.</p> |
