Wood golf club head and wood golf club

Abstract

A wood golf club head used for a driver, comprises: a face portion having a ball hitting surface; a heel portion located at an end on the side of a shaft relative to the ball hitting surface; and a toe portion located at an end facing away from the heel portion relative to the ball hitting surface. A ratio of a maximum length (L 1 (unit: mm)) of the wood golf club head in a direction from the heel portion toward the toe portion relative to the volume of the wood golf club head (unit: cm 3 ) is equal to or greater than 0.30 and equal to or less than 1.04.

What is claimed is: 
     
         1 . A wood golf club head used for a driver, comprising:
 a face portion having a ball hitting surface;   a heel portion located at an end on a side of a shaft relative to the ball hitting surface; and   a toe portion located at an end facing away from the heel portion relative to the ball hitting surface,   a ratio of a maximum length L 1  (unit: mm) of the wood golf club head in a direction from the heel portion toward the toe portion relative to a volume of the wood golf club head (unit: cm 3 ) being equal to or greater than 0.30 and equal to or less than 1.04.   
     
     
         2 . A wood golf club head used for a fairway wood, comprising:
 a face portion having a ball hitting surface;   a heel portion located at an end on a side of a shaft relative to the ball hitting surface; and   a toe portion located at an end facing away from the heel portion relative to the ball hitting surface,   a ratio of a maximum length L 1  (unit: mm) of the wood golf club head in a direction from the heel portion toward the toe portion relative to a volume of the wood golf club head (unit: cm 3 ) being equal to or greater than 0.60 and equal to or less than 2.31.   
     
     
         3 . A wood golf club head used for a utility crab, comprising:
 a face portion having a ball hitting surface;   a heel portion located at an end on a side of a shaft relative to the ball hitting surface; and   a toe portion located at an end facing away from the heel portion relative to the ball hitting surface,   a ratio of a maximum length L 1  (unit: mm) of the wood golf club head in a direction from the heel portion toward the toe portion relative to a volume of the wood golf club head (unit: cm 3 ) being equal to or greater than 0.94 and equal to or less than 3.43.   
     
     
         4 . The wood golf club head according to  claim 1 , wherein a concave area is formed in a region behind the ball hitting surface located on a side of the toe portion. 
     
     
         5 . The wood golf club head according to  claim 4 , comprising a fixed member fixed to at least a portion of the concave area, wherein the fixed member is formed of a material having a lower specific gravity than a material forming the face portion. 
     
     
         6 . The wood golf club head according to  claim 5 , wherein the fixed member has a volume equal to or greater than 14% of an overall volume of the wood golf club head and equal to or less than 75% of the overall volume of the wood golf club head. 
     
     
         7 . The wood golf club head according to  claim 4 , wherein the concave area has a wall portion isolating an interior of the wood golf club head from outside. 
     
     
         8 . A wood golf club comprising the wood golf club head according to  claim 1 .