Patent ID: 7883431

Claim:
A golf club head which is metallic and hollow and has at least a face part, a sole part, a side part, and a crown part in a head body, wherein an opening portion is formed in the face part of the head body, a thick part is provided in the head body, a face plate is fixed to a face opening portion by welding, and the thick part having a predetermined width is provided in a central portion in the toe-heel direction of the cross corner portion between the face part and the sole part in the golf club head, the height of the thick part decreasing toward the rear, and deflection near a center of the face part is restrained so that deflection at a toe side and a heel side increases, and a rebound coefficient at the toe side and the heel side is set low as compared with the face center, wherein the thick part is disposed below an upper plane of a lead flange which projects to a face side from a bottom surface of the golf club head.