Patent ID: 6887165

Claim:
A golf club comprising: a face portion disposed on the front face of a metallic hollow golf club head and having a hitting surface for hitting a golf ball; a sole portion which forms the lower portion of said metallic hollow golf club head; and a crown portion which forms the upper portion of said metallic hollow golf club head; wherein said sole portion comprises; a deformation portion disposed on said sole portion which is capable of elastic deformation when a golf ball is struck; wherein said deformation portion includes; a protruding part which protrudes such that said sole portion is formed in an obtuse angle, in continuation with said hitting surface and said face portion, as viewed in a cross section cut along a vertical plane including a perpendicular to said hitting surface in order to enhance an elastic effect; said protruding part have a first corner in said obtuse angle linking said face portion and said sole portion, and a second corner in said sole portion.