| 摘要 |
<p>PURPOSE:To provide the same drivability ranging from a short side club to a long side club by setting the angle between the vertical line of the shaft axis and the extension line of the face surface of a club head gradually larger from the short club side to the long club side, or setting it nearly equal. CONSTITUTION:The center of gravity angle theta is set gradually larger from the short club side to the long club side in a golf club set, or it is set nearly equal from the short club side to the long club side. To change the center of gravity angle theta, the displacement quantity L between the shaft axis 3 and the neck axis is made larger for the long side. The long side club of the golf club set is made easy to drive, the same drivability can be attained from the short side club to the long side club, and the dispersion of the directivity of the driven ball by the long side club in particular can be reduced.</p> |
