| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a neck of a golf club which allows a ball to fly straightforward without the torsion of a shaft in spite of hitting of the ball off the sweet spot, eliminates a slice and assures a long distance by forming a hollow chamber strong to the torsion or mounting bump at the neck of the golf club, thereby forming varying intensity. SOLUTION: a) The hollow chamber or the bump (5) is mounted at the neck (3) of the golf club (2) to form the varying intensity.</p> |
