Golf club head

Abstract

A metallic frame-shaped iron head body is composed of a heel section, a toe section, an upper edge section connecting superior ends of the heel section and of the toe section, and a sole section. On a front face of the head body, a metallic thin-walled face section having a high coefficient of restitution is provided. The head body includes rear wall sections spaced apart from the face section and extending upward from a rear end of the sole section. A reinforced fiber member is placed in an area surrounded by the face section, the sole section, and the rear wall sections. This reinforced fiber member abuts on a back of the face section to form a closed hollow void section, and apart of a back of the reinforced fiber member is supported on the rear wall sections.

1 . A golf club head, comprising: 
 a metallic frame-shaped iron head body including a heel section, a toe section, an upper edge section connecting the superior ends of the heel section and of the toe section, and a sole section; and    a metallic thin-walled face section, having a high coefficient of restitution, provided on a front face of the head body,    wherein the head body includes a rear wall section, which is spaced apart from the face section, and which extends upward from a rear end of the sole section,    a reinforced fiber member is placed in an area surrounded by the face section, the sole section, and the rear wall section, and abuts on a back of the face section to form a closed hollow void section, and    a part of a back of the reinforced fiber member is supported on the rear wall section.    
   
   
       2 . The golf club head according to  claim 1 , wherein a part of the reinforced fiber member is shaped in a plate and brought in close contact with the back of the face section, and the plate-shaped part of the reinforced fiber member and another part of the reinforced fiber member form an oblong sealed closed void section.  
   
   
       3 . The golf club head according to any one of claims  1  and  2 , wherein the rear wall section is integrally formed with the rear end of the sole section.  
   
   
       4 . The golf club head according to any one of claims  1  and  2 , wherein the rear wall section is formed from a metallic plate attached to the rear end of the sole section.  
   
   
       5 . The golf club head according to any one of claims  1  and  2 , wherein a fiber reinforced resin plate is placed in close contact with the back of the face section, and the fiber reinforced resin plate and the reinforced fiber member form a sealed closed void section having a substantially triangular section when vertically cut in a front to rear direction.  
   
   
       6 . The golf club head according to any one of claims  1  and  4 , wherein part of the reinforced fiber member abutting on the back of the face plate is thicker than part of the reinforced fiber member placed at a peripheral edge thereof.  
   
   
       7 . The golf club head according to  claim 3 , wherein the rear wall is composed of a chevron-shaped extension section protruding upward from an edge of the rear end of the sole section and a belt-shaped extension section diagonally connecting a top of the chevron-shaped extension section and an upper end of the toe section.  
   
   
       8 . The golf club head according to any one of  claims 1  to  7 , wherein the reinforced fiber member is formed by bending a sheet of carbon fiber prepreg.  
   
   
       9 . The golf club head according to  claim 7 , wherein a plate-shaped weight member is buried in a back of the chevron-shaped extension section.