| 摘要 |
<p>PROBLEM TO BE SOLVED: To remarkably increase the flight distance by strengthening a force of repulsion from the inside of a golf club head for a player who cannot hit a long shot. SOLUTION: In this apparatus a cylindrical box is installed in a golf club head, a spiral wing is mounted inside, a cylindrical outside is welded and a liquid and a gas is injected through a cylindrical inlet. The kinetic energy flies a ball a long distance.</p> |
