Iron club head and iron-headed golf club

Abstract

The present invention relates to an iron club head for an iron golf club. The iron club head 1 includes a front area 2 having a front wall for defining a striking face, and a rear area 3 connected to the front area 2 . The rear area 3 is formed from at least a sole portion 32 , a toe portion 33 and a top blade portion 34 . The front area has a rib 23 extending from the outer peripheral edge of the front wall toward the rear area at portions thereof corresponding to at least the sole portion, the toe portion and the top blade portion of the rear area. The rear area is joined to the front area at the end surface of the rib.

1 . An iron club head for an iron golf club, comprising: 
 a front area having a front wall for defining a striking face; and    a rear area connected to said front area;    wherein said rear area is formed from at least a sole portion, a toe portion and a top blade portion; and    said front area has a rib extending from the outer peripheral edge of said front wall toward said rear area at portions thereof corresponding to at least said sole portion, toe portion and top blade portion of said rear area, said rear area being joined to said front area at an end surface of said rib.    
     
     
         2 . An iron club head according to  claim 1 , wherein said front area is made of a material having a smaller specific gravity than that of a material of said rear area.  
     
     
         3 . An iron club head according to  claim 1 , wherein a material of said front area is titanium or a titanium alloy, and a material of said rear area is a stainless steel.  
     
     
         4 . An iron club head according to  claim 1 , wherein an insert made of a material having a larger specific gravity than that of a material of said rear area is joined to the sole portion of said rear area.  
     
     
         5 . An iron golf club having an iron club head, said iron club head including: 
 a front area having a front wall for defining a striking face; and    a rear area connected to said front area; 
 wherein said rear area is formed from at least a sole portion, a toe portion and a top blade portion; and  
 said front area has a rib extending from the outer peripheral edge of said front wall toward said rear area at portions thereof corresponding to at least said sole portion, toe portion and top blade portion of said rear area, said rear area being joined to said front area at an end surface of said rib.  
   
     
     
         6 . An iron golf club according to  claim 5 , wherein said front area is made of a material having a smaller specific gravity than that of a material of said rear area.  
     
     
         7 . An iron golf club according to  claim 5 , wherein the material of the front area of said iron club head is titanium or a titanium alloy, and the material of the rear area of said iron club head is a stainless steel.  
     
     
         8 . An iron golf club according to  claim 5  wherein an insert made of a material having a larger specific gravity than that of the material of the rear area of said iron club head is joined to the sole portion of said rear area.  
     
     
         9 . An iron golf club according to  claim 5 , wherein a hosel for connecting together said iron club head and a clubshaft is formed as a member separate from said iron club head from a material having a smaller specific gravity than that of the material of the rear area of said iron club head.  
     
     
         10 . An iron club head according to  claim 2 , wherein a material of said front area is titanium or a titanium alloy, and a material of said rear area is a stainless steel.  
     
     
         11 . An iron club head according to  claim 2 , wherein an insert made of a material having a larger specific gravity than that of a material of said rear area is joined to the sole portion of said rear area.  
     
     
         12 . An iron club head according to  claim 3 , wherein an insert made of a material having a larger specific gravity than that of a material of said rear area is joined to the sole portion of said rear area.  
     
     
         13 . An iron club head according to  claim 10 , wherein an insert made of a material having a larger specific gravity than that of a material of said rear area is joined to the sole portion of said rear area.  
     
     
         14 . An iron golf club according to  claim 6 , wherein the material of the front area of said iron club head is titanium or a titanium alloy, and the material of the rear area of said iron club head is a stainless steel.  
     
     
         15 . An iron golf club according to  claim 6 , wherein an insert made of a material having a larger specific gravity than that of the material of the rear area of said iron club head is joined to the sole portion of said rear area.  
     
     
         16 . An iron golf club according to  claim 7 , wherein an insert made of a material having a larger specific gravity than that of the material of the rear area of said iron club head is joined to the sole portion of said rear area.  
     
     
         17 . An iron golf club according to  claim 14 , wherein an insert made of a material having a larger specific gravity than that of the material of the rear area of said iron club head is joined to the sole portion of said rear area.  
     
     
         18 . An iron golf club according to  claim 6 , wherein a hosel for connecting together said iron club head and a clubshaft is formed as a member separate from said iron club head from a material having a smaller specific gravity than that of the material of the rear area of said iron club head.  
     
     
         19 . An iron golf club according to  claim 7 , wherein a hosel for connecting together said iron club head and a clubshaft is formed as a member separate from said iron club head from a material having a smaller specific gravity than that of the material of the rear area of said iron club head.  
     
     
         20 . An iron golf club according to  claim 14 , wherein a hosel for connecting together said iron club head and a clubshaft is formed as a member separate from said iron club head from a material having a smaller specific gravity than that of the material of the rear area of said iron club head.