| 摘要 |
<p>PROBLEM TO BE SOLVED: To make it possible to drive out a ball surely to a target in spite of a minor deviation in a position where a ball contacts. SOLUTION: A clubface is formed by disposing a film-like member 15 between end members 11 and 12 at both side ends. An intermediate member 16 is disposed between these end members 11 and 12 and a screw shaft 18 is disposed behind the same. The tension of the film-like member 15 is adjusted by tightening of this screw shaft 18. Even if sway occurs at the head resulting from the deviation in the position where the ball contacts, the film-like member 15 is deformed to offset this sway and the sure pushing out of the ball to the target direction is made possible.</p> |
