| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a clubhead with which a ball and a clubface mutually rub more strongly, while conforming to golf rule. <P>SOLUTION: A clubhead is composed of hard rubber which is much harder than that used for the golf ball. A clubhead is composed of mixture of rubber and natural materials or rubber and synthesized materials. A clubhead is made without using rubber materials but only from the other materials. A head of iron/putter club is made with natural wood such as persimmon. <P>COPYRIGHT: (C)2004,JPO</p> |
