| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a golf club head capable of increasing a carry, by heightening a hitting-out angle, even if a golfer slow in a head speed uses the golf club head. <P>SOLUTION: This golf club head 1A is integrated by welding upper parts 10, lower parts 20, a hosel part 30 and a face part 40. The upper parts 10 have a crown part 11, an upper side part 12 and a space 13 for installing the hosel part. The lower parts 20 have a sole part 21 and a lower side part 22. Respective parts for constituting this golf club head are composed of titanium or a titanium alloy. A modulus of longitudinal elastic modulus of the upper parts 10 is set lower than any modulus of longitudinal elastic modulus of the lower parts 20 and the hosel part 40. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
