Patent ID: 8864603

Claim:
A golf club head comprising: a head body having a face surface, a back surface located on a back of the face surface, a top surface, and a sole surface, said top surface and sole surface providing permanent weighting in defining a cavity on the back surface of the head body, a double-stick tape, an adherend bonded to the back surface of the head body in said cavity by said double-stick tape, said adherend having a metal member and an elastic member which has a peripheral part directly or indirectly abutting on a side surface of the metal member, wherein the double-stick tape includes a first adhesive layer provided as an innermost layer, a second adhesive layer provided as an outermost layer, and an intermediate layer provided between the first adhesive layer and the second adhesive layer; the intermediate layer includes a fiber layer and/or a resin layer; the resin layer is free of bubbles; the head body and the adherend have a bonded surface bonded to the double-stick tape; the adherend includes a recessed part on an inner surface thereof and a corresponding protruding part on an outer surface thereof; the inner surface of the adherend comprising the recessed part and the bonded surface are adjacent to each other; and an enclosed space exists between the double-stick tape and the recessed part.