| 摘要 |
<p>The invention relates to a golf club head comprising a body (1) and an impact face (2) limited by an upper edge (20), a lower edge (21) and two side edges (22, 23); in the center of the face (2) is fictively defined the impact center (O) which is the origin of a fictive orthogonal mark defined by a horizontal axis (I, I') and a vertical axis (J, J'); the intersection of the axis (I, I') with the side edges (22, 23) define the width (L) of the face (2) and the intersection of the axis (J, J') with the lower (21) and upper (20) edges define the height (H) of the face. The impact face (2) is divided into two distinct surfaces (S1) and (S2); the surface (S1) is covered with a material having a high Young modulus, higher than 15 GPa, preferably higher than 100 GPa; said surface extends horizontally on either side of (I, I') throughout a width (l) comprised between 20 and 40 % of (L); and vertically from the lower edge (21) up to beyond the axis (I, I') throughout a height (h) comprised between 65 and 85 % of (H); the surface (S2) is covered with a low Young modulus material, lower than 15 GPa, preferably comprised between 0.1 and 10 GPa; said surface (S2) extends on the remainder of the face.</p> |
