Golf club head

Abstract

A golf club head according to the present invention is provided with a head body having a crown portion and a sole portion, and having an opening surrounded by the crown portion and the sole portion, and a face member closing the opening of the head body, the face member being formed in a cup shape having a planar face portion and a peripheral portion extending from a periphery of the face portion, the peripheral portion having a thick portion joined to an end face of the opening of the head body, and a connecting portion connecting the thick portion and the face portion, and, in the connecting portion, a thickness of a portion connected to the thick portion being thinner than the thick portion.

What is claimed is: 
     
         1 . A golf club head comprising:
 a head body having a crown portion and a sole portion, and having an opening surrounded by the crown portion and the sole portion; and   a face member closing the opening of the head body,   wherein the face member is formed in a cup shape having a planar face portion and a peripheral portion extending from a periphery of the face portion,   the peripheral portion has:   a thick portion configured to join to an end face of the opening of the head body; and   a connecting portion connecting the thick portion and the face portion, and   the connecting portion includes a thin portion whose thickness is thinner than the thick portion.   
     
     
         2 . The golf club head according to  claim 1 ,
 wherein at least part of the connecting portion has a base end portion connecting the thin portion and the face portion, and   a thickness of the base end portion is smaller than the thickness of the thick portion.   
     
     
         3 . The golf club head according to  claim 1 ,
 wherein at least part of the connecting portion has a base end portion connecting the thin portion and the face portion, and   a thickness of the base end portion is larger than the thickness of the thick portion.   
     
     
         4 . The golf club head according to  claim 2 , wherein the thickness of the base end portion is larger than the thickness of the thin portion. 
     
     
         5 . The golf club head according to  claim 4 , wherein the base end portion is formed in a range of 20 mm from a face center in a toe-heel direction. 
     
     
         6 . The golf club head according to  claim 3 , wherein the thickness of the base end portion is larger than the thickness of the thin portion. 
     
     
         7 . The golf club head according to  claim 6 , wherein the base end portion is formed in a range of 20 mm from a face center in a toe-heel direction. 
     
     
         8 . The golf club head according to  claim 1 , wherein the connecting portion further includes, between the thick portion and the thin portion, a transition portion whose thickness becomes incrementally thinner proceeding toward the thin portion from the thick portion. 
     
     
         9 . The golf club head according to  claim 1 , wherein a length of the connecting portion in a face-back direction is longer than a length of the thick portion in the face-back direction. 
     
     
         10 . The golf club head according to  claim 1 , wherein a length of the peripheral portion in the face-back direction is greater than or equal to 18 mm.