| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a durable golf club head which is excellent in improving the stability of a golf ball and the distance. <P>SOLUTION: A first thick part 11 positioned at the center of the rear surface of a face 2 and a plurality of second thick parts 12 radially extending from the first thick part 11 toward peripheral edges on the rear surface of the face 2 are formed on the rear surface of the face 2 consisting of a titanium alloy, etc., in the golf club head. A direct crash by an impact with a ball is evaded by the first thick part 11 and also the impact is distributed to the circumference by the second thick part 12. <P>COPYRIGHT: (C)2003,JPO</p> |
