Golf club head and golf club

Abstract

A main body portion including a face and a recess formed on a back side of the face, an intermediate member being arranged in the recess, including a first member and a second member, and having a smaller specific gravity than the main body portion, and a high specific gravity member being arranged on a side opposite to the main body portion when viewed from the intermediate member and having a higher specific gravity than the intermediate member are provided.

What is claimed is: 
     
         1 . A golf club head comprising:
 a main body portion including a face and a recess formed on a back side of said face;   an intermediate member being arranged in said recess, including a first member and a second member, and having a lower specific gravity than said main body portion; and   a high specific gravity member being arranged on a side opposite to said main body portion when viewed from said intermediate member, and having a higher specific gravity than said intermediate member.   
     
     
         2 . The golf club head according to  claim 1 , wherein
 said first member has a lower specific gravity than said main body portion, and   said second member has a lower specific gravity than said first member.   
     
     
         3 . The golf club head according to  claim 2 , wherein said first member is constituted of a metal material, and said second member is constituted of a resin material. 
     
     
         4 . The golf club head according to  claim 1 , wherein said recess is formed in a region overlapping with at least a part of a hitting position of said face when viewed from said face. 
     
     
         5 . The golf club head according to  claim 1 , wherein in said intermediate member, said first member is joined to said main body portion, and said second member is joined to said high specific gravity member. 
     
     
         6 . The golf club head according to  claim 1 , wherein
 said main body portion includes a heel portion located at an end portion on a side of a shaft and a toe portion located at an end portion on an opposite side of said heel portion with respect to said face, and   in a direction from said heel portion toward said toe portion, a thickness of a central portion of said first member is relatively larger than a thickness of a portion other than said central portion in said first member.   
     
     
         7 . The golf club head according to  claim 6 , wherein said central portion of said first member is provided so as to overlap with at least a portion of a hitting position of said face. 
     
     
         8 . The golf club head according to  claim 1 , wherein an adhesive is used to join said first member and said second member and to join said intermediate member and said high specific gravity member. 
     
     
         9 . The golf club head according to  claim 1 , wherein said main body portion, said intermediate member, and said high specific gravity member are integrally formed without a hollow portion. 
     
     
         10 . A golf club comprising the golf club head according to  claim 1 .