| 摘要 |
PROBLEM TO BE SOLVED: To provide a weighting system which uses two kinds of materials which are made into a golf club with flexibility for positioning the center of gravity and good feeling. SOLUTION: This golf club 12 showed as a whole has a heel well 44, a floor wall 45, a bottom face thickness part 46, an under cut recess part 47, a front wall 48, a ceiling wall 49, and an upper face thickness part 50. It is preferable that the border of its inner cavity 28 is formed with the bottom face thickness part 46, the upper face 48, the ceiling wall 49, the floor wall 45, an inserted wall 24, the heel wall 44, and a toe wall 52. The volume of the inner cavity 28 near the heel wall 44 and the toe wall 52 can be reduced because the effect of a weighting member placed there is higher compared to that of the equal volume of a weighting member placed at the central part of the inner cavity 28. |
