US Patent 7108614 Golf club head with improved striking effect

A golf club head includes a body and at least one light cover. The body includes a striking face for striking golf balls and a crown. At least one recessed portion is defined in the crown and includes a bonding face. The bonding face includes a plurality of regularly arranged holes spaced by a plurality of resilient ribs. The light cover is securely mounted to the recessed portion. The light cover and the holes reduce a weight of the crown of the golf club head and improve a rearward resilient deforming capacity of the striking face. Further, the resilient ribs assure strength of the recessed portion.