| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To improve durability of a crown portion. <P>SOLUTION: A golf club head 1, having a hollow structure has a face 2 for hitting a ball, includes a head body 1A provided with an opening portion O1 in the crown portion 4, and a crown member 1B fixed to the head body 1A to close the opening portion O1, and the periphery of the opening portion O1 is provided with an annular receiving portion 10b for supporting the inner surface and peripheral edge portion of the crown member. The receiving portion 10b includes a front side receiving portion 13, an intermediate receiving portion 14, and a rear side receiving portion 15, and the average width Wa, Wb, and Wc of them satisfy formula (1): Wa>Wb, and formula (2): Wc>Wb. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
