WOOD GOLF CLUB HEAD AND WOOD GOLF CLUB

摘要

PROBLEM TO BE SOLVED: To stabilize the directionality of a hit ball by optimizing the ratio of the moment of inertia acting perpendicularly on the face of a wood golf club head at the time of an impact to the moment of inertia around a shaft in order to improve a head turn at the time of swinging. SOLUTION: An axis passing through the center of gravity G perpendicular to the ground in the case where the wood golf club head is set at a prescribed lie angleθand a prescribed loft angleδon a flat surface is rotated by the loft angleγso as to be parallel to a face. The moment of inertia around the rotated axis is set to be 0.06 to 1.00 times the moment of inertia around the shaft.