Combination of body and striking plate for golf club head

Abstract

A golf club head includes a body and a striking plate. The body includes a front side having a recessed portion. The striking plate includes a front side for striking golf balls and a rear side. At least one groove is defined in one of the front side of the body and the rear side of the striking plate. At least one plastic protrusion is formed on the other of the front side of the body and the rear side of the striking plate. When assembling the striking plate and the body, the plastic protrusion deforms under pressure to form an engaging portion that is engaged in the groove, thereby securely engaging the striking plate with the body.

1 . A golf club head comprising: 
 a body comprising a front side including a recessed portion;    a striking plate including a front side for striking golf balls and a rear side;    at least one groove defined in one of the front side of the body and the rear side of the striking plate; and    at least one plastic protrusion formed on the other of the front side of the body and the rear side of the striking plate;    wherein when assembling the striking plate and the body, said at least one plastic protrusion deforms under pressure to form an engaging portion that is engaged in said at least one groove, thereby securely engaging the striking plate with the body.    
   
   
       2 . The golf club head as claimed in  claim 1  wherein said at least one groove is slantingly V-shaped.  
   
   
       3 . The golf club head as claimed in  claim 1  wherein said at least one plastic protrusion is slantingly V-shaped.  
   
   
       4 . The golf club head as claimed in  claim 1  wherein said at least one plastic protrusion includes a pointed section located in an opening of said at least one groove when assembling the striking plate with the body.  
   
   
       5 . The golf club head as claimed in  claim 1  wherein said at least one groove is defined in the front side of the body and said at least one plastic protrusion is formed on the rear side of the striking plate.  
   
   
       6 . The golf club head as claimed in  claim 1  wherein said at least one groove is defined in the rear side of the striking plate and said at least one plastic protrusion is formed on the front side of the body.  
   
   
       7 . The golf club head as claimed in  claim 6  wherein the body further includes a positioning groove and a positioning flange, the rear side of the striking plate including a positioning flange that is engaged in the positioning groove of the body, and the positioning flange of the striking plate being securely held in place by the positioning flange of the body.  
   
   
       8 . The golf club head as claimed in  claim 1  further including an auxiliary plastic protrusion formed on said one of the front side of the body and the rear side of the striking plate, the auxiliary plastic protrusion being adjacent to and extends along an outer perimeter of said one of the front side of the body and the rear side of the striking plate, the auxiliary plastic protrusion being deformable to form a gap-filling portion for filling gaps between the body and the striking plate.  
   
   
       9 . The golf club head as claimed in  claim 8  wherein the auxiliary plastic protrusion is located on an outer side of said at least one plastic protrusion.  
   
   
       10 . The golf club head as claimed in  claim 8  wherein said at least one plastic protrusion extends to an extent greater than the auxiliary plastic protrusion.  
   
   
       11 . The golf club head as claimed in  claim 1  wherein said at least one plastic protrusion and said at least one groove extend continuously.  
   
   
       12 . The golf club head as claimed in  claim 1  wherein said at least one plastic protrusion and said at least one groove extend discontinuously.  
   
   
       13 . The golf club head as claimed in  claim 1  wherein the golf club head is one of an iron club head, a wooden club head, and a putter.  
   
   
       14 . The golf club head as claimed in  claim 13  wherein the striking plate is substantially U-shaped in section and bent to form an annular supporting wall to improve elastic deformability of the striking plate.  
   
   
       15 . The golf club head as claimed in  claim 14  wherein said at least one groove is defined in one of the front side of the body and a bottom face of the annular supporting wall, and wherein said at least one plastic protrusion is formed on the other of the front side of the body and the bottom face of the annular supporting wall.