发明名称 Golf club head
摘要 A golf club head includes a metallic head body 1 having a cavity 10 therein and an opening 8 being formed in a face part 2 therethrough to the cavity, and a metallic face plate 9 welded to the opening. The opening 8 is demarcated by an upper edge along an upper end of the face part 2 and a U shaped curved edge (8B, 8A, 8C) located within the face part 2, and is also formed so that, in a state in which the head body 1 is soled in accordance with the lie angle, a projection line A on the face part surface of the perpendicular passing through the lowermost portion X of the opening 8 coincides with a projection line A on the face part surface of the perpendicular passing through a ground contact point Y of a sole part 4, or the projection line drawn with the lowermost portion X of the opening 8 being the reference is positioned close to a heel part 7 with respect to the projection line A drawn with the ground contact point Y of the sole part; and the ratio of width W2 on the toe side with respect to the projection line drawn with the ground contact point Y of the sole part 4 is higher than the ratio of width W1 on the heel side toward a crown part. The face plate 9 is formed so as to have a shape matching the opening 8.
申请公布号 US7785213(B2) 申请公布日期 2010.08.31
申请号 US20070871035 申请日期 2007.10.11
申请人 BRIDGESTONE SPORTS CO., LTD 发明人 MATSUNAGA HIDEO;KUBOTA MAKOTO
分类号 A63B53/04 主分类号 A63B53/04
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