Golf club head

Abstract

A gold club head includes a club head body defining a mounting surface, a spacer member including a top surface, an opposing bottom surface fixedly connected to the mounting surface of the club head body, and a face panel including a ball-hitting surface, and opposing bottom bonding surface fixedly connected to the top surface of the spacer member and a plurality of upper grooves curved inwardly in direction from the ball-hitting surface toward bottom bonding surface. Thus, the golf club head has better elasticity capable of extending the staying time of the ball in the ball-hitting surface.

What is claimed is: 
     
         1 . A golf club head, comprising:
 a club head body comprising a mounting surface;   a spacer member comprising a top surface and an opposing bottom surface, said bottom surface being fixedly connected to said mounting surface of said club head body; and   a face panel comprising a ball-hitting surface, an opposing bottom bonding surface fixedly connected to said top surface of said spacer member, and a plurality of upper grooves inwardly curved in direction from said ball-hitting surface toward said bottom bonding surface.   
     
     
         2 . The golf club head as claimed in  claim 1 , wherein said spacer member further comprises a plurality of lower grooves inwardly curved in direction from said top surface toward said bottom surface and respectively disposed corresponding to one respective said upper groove. 
     
     
         3 . The golf club head as claimed in  claim 1 , wherein said club head body further comprises a sidewall surface, said sidewall surface defining with said mounting surface a recessed portion therebetween; said spacer member and said face panel are disposed in said recessed portion. 
     
     
         4 . The golf club head as claimed in  claim 3 , wherein said spacer member further comprises a lateral surface disposed between said top surface and said bottom surface and fixedly connected to said sidewall surface of said club head body. 
     
     
         5 . The golf club head as claimed in  claim 3 , wherein said face panel further comprises a lateral connection surface disposed between said ball-hitting surface and said bottom bonding surface and fixedly connected to said sidewall surface of said club head body. 
     
     
         6 . The golf club head as claimed in  claim 1 , wherein said spacer member is fixedly connected to said club head body using one of explosion welding, friction welding and brazing processes. 
     
     
         7 . The golf club head as claimed in  claim 1 , wherein said face panel is fixedly connected to said spacer member using one of explosion welding, friction welding and brazing processes.