| 摘要 |
Golf club head comprising an imaginary line formed by the intersection of the hitting surface (3) with a plane (P) passing through the center of the surface (O) and perpendicular, first, to the hitting plane (T) and second, to the plane (Q) tangent to the hitting surface (3) in the center of the surface (O), this imaginary line (L) being constituted by a series of portions of arcs of circles. The imaginary line is formed by two half-lines (L1, L2) adjacent to the center of the surface (O) and mutually asymmetrical, the number of portions is at least three, and the values of the radii of the arcs of circles are different from one adjacent portion to the next. |
