Patent ID: 7520822

Claim:
A golf club head of a hollow shell structure, comprising: a first member that includes titanium-based metal material and includes a face portion and an edge portion continuous with the face portion; a second member formed of a fiber reinforced resin; a metal plate made of a metal material, which is larger in specific gravity than the titanium-based metal material, that is separate and spaced apart from the first member, extends in a direction, which is different from a toe-heel direction of the golf club head, and includes at least a part of sole portion; and a weight member formed of a metal whose specific gravity is greater than that of the metal plate; a metal sole portion having a center edge portion, a toe side edge portion, and a heel side edge portion, the center edge portion having almost straight shape in the toe-heel direction; wherein a width of the metal sole portion corresponding to the toe side edge portion and the heel side edge portion in face-back direction becomes larger as a position on the metal sole portion gets farther from the center edge portion; and wherein H≦ 0.05 V+ 7.5 where V denotes volume of the golf club head in cc unit, and H denotes height of center of gravity of the golf club head in mm unit.