Golf club head

Abstract

A golf club head includes a shell, a covering plate, and a male-and-female engagement unit. The shell includes an inner surface, an outer surface, an assembling hole extending through the inner and outer surfaces, a bounding edge bounding the assembling hole, and a flange projecting inwardly from the inner surface and the bounding edge and extending toward the assembling hole. The flange has a shoulder face that has a depth from the outer surface and that is adjacent to the bounding edge. The shoulder face extends in full length of the bounding edge. The covering plate is inserted into the assembling hole and contacts the shoulder face. The male-and-female engagement unit is provided on and interengages the covering plate and the flange.

1 . A golf club head, comprising:
 a shell including an inner surface, an outer surface, an assembling hole extending through said inner and outer surfaces, a bounding edge bounding said assembling hole, and a flange projecting inwardly from said inner surface and said bounding edge and extending toward said assembling hole, said flange having a shoulder face that has a depth apart from said outer surface and that is adjacent to said bounding edge, said shoulder face extending in full length of said bounding edge;   a covering plate inserted into said assembling hole and contacting said shoulder face; and   a male-and-female engagement unit provided on and interengaging said covering plate and said flange.   
   
   
       2 . The golf club head as claimed in  claim 1 , wherein said male-and-female engagement unit has a groove formed in said flange and extending to said shoulder face, and a tongue projecting from said covering plate and engaging said groove. 
   
   
       3 . The golf club head as claimed in  claim 2 , wherein said groove extends along the length of said flange. 
   
   
       4 . The golf club head as claimed in  claim 2 , wherein said covering plate has an outer peripheral face contacting said bounding edge, said tongue extending along and being flush with said outer peripheral face. 
   
   
       5 . The golf club head as claimed in  claim 2 , wherein said covering plate has an outer peripheral face contacting said bounding edge, said tongue extending along and inwardly of said outer peripheral face so that said tongue is spaced apart from said outer peripheral face. 
   
   
       6 . The golf club head as claimed in  claim 1 , wherein said male-and-female engagement unit has a through slot formed in said flange and extending to said shoulder face, and a bifurcated tongue projecting from said covering plate and engaging said through slot, said bifurcated tongue having two resilient legs each formed with a barbed end. 
   
   
       7 . The golf club head as claimed in  claim 1 , further comprising an adhesive provided between said covering plate and said shoulder face. 
   
   
       8 . The golf club head as claimed in  claim 7 , wherein said shell is made of a metal material, said covering plate being made of a plastic material and being bonded to said shell via said adhesive.