Golf club head and method for fabricating striking plate thereof

Abstract

A golf club head including a shell and a striking plate and a method for fabricating the striking plate is provided. The shell has an opening and the striking plate is disposed at the opening. In addition, the striking plate has a striking surface and at least one cavity is formed on the striking plate opposite to the striking surface for modifying a preferred striking region of the golf club head. By the cavity, the preferred striking region on the striking surface can be modified and thus the striking effect of the golf club head can be improved.

1 . A golf club head, comprising: 
 a shell, having an opening; and    a striking plate, disposed at the opening, and having a striking surface, wherein the striking plate has at least one cavity opposite to the striking surface for modifying a preferred striking region of the golf club head.    
   
   
       2 . The striking plate according to  claim 1 , wherein the projected center of gravity of the golf club head is located in a first quadrant defined by a two-dimensional coordinate having an origin located at the geometric center of the striking surface, and at least one portion of the striking plate in a second quadrant, a third quadrant and a fourth quadrant defined by the two-dimensional coordinate has a cavity opposite to the striking surface.  
   
   
       3 . The striking plate according to  claim 1 , wherein the thickness of the portion of the striking plate having the cavity is between 0.5 mm and 3 mm.  
   
   
       4 . The striking plate according to  claim 1 , wherein the profile of the cavity is regular.  
   
   
       5 . A method for fabricating the striking plate of the golf club head of  claim 1 , the fabricating method comprising: 
 providing a work piece; and    forming the striking plate with the cavity from the work piece.    
   
   
       6 . The method according to  claim 5 , wherein the cavity is integrally formed with the striking plate.  
   
   
       7 . The method according to  claim 6 , wherein the striking plate with the cavity is formed by punching, casting, or forging.  
   
   
       8 . The method according to  claim 5 , wherein the cavity is formed by performing an extra work to the work piece.  
   
   
       9 . The method according to  claim 8 , wherein the cavity is formed by milling.