| 摘要 |
<p>PROBLEM TO BE SOLVED: To increase a club weight without increasing a swing balance by a method wherein a weight increasing member based on a value obtained by multiplying a distance from the fulcrum for a specified location of a golf club to the gravity center of the club by the club total weight, is additionally arranged at the fulcrum part of the club at the time of a swing balance measurement. SOLUTION: On a pedestal 11, a golf club is supported by a supporting rod 12 at the fulcrum (a location at 14 inches from the grip end), and the grip end side is supported by a holding plate 13. Then, the supporting rod 12 rotates, and a frame on the head 1, side sinks, and the tilt of the pedestal 11 is returned to a horizontal state by sliding a weight 18, and a shaft base tube 3 is made to meet the central scale 16A of a level 16, and a swing balance value of the club is read by a swing balance scale 17, and the balance value is added to a grip cover 2. In addition, a balance value to restore the change of the swing balance value due to the added balance value, is added to a location corresponding with the fulcrum 12 of the shaft base tube 3.</p> |
