| 摘要 |
A golf club with an increased coefficient of restitution and a decreased weight is provided to maintain a shape of a head in spite of a thin thickness of the head, and to enable a golfer to fly a ball easily by center of gravity located in a lower and rear part of the head. The golf club with an increased coefficient of restitution and a decreased weight includes: a space(8) formed in a head(1) in an airtight structure; and compressed air having pressure higher than atmospheric pressure and filled into the space. The head is formed by selecting and mixing at least one material among metal, synthetic resins, and fiber reinforced synthetic resins. The head has a tube(9) filled with the compressed air installed therein. |
