Golf club head

Abstract

A wood-type golf club head has a hollow shell structure having a head length L (mm), a head-depth W (mm) and a sweet spot height H (mm) which satisfy: 0.80≦W/L≦1.0 and H≦76×(W/L)−31. The head length L is the distance between the clubshaft axis CL and a point T farthest from the clubshaft axis CL. The head depth W is the distance between a plane FP tangent to the sweet spot SS and a point B farthest from the plane FP.

1 . A wood-type golf club head having a hollow structure having a head length L (mm), a head depth W (mm) and a sweet spot height H (mm) which satisfy
   0.80 ≦W/L≦ 1.0 and  H≦ 76×( W/L )−31.   
     
     
         2 . The club head according to  claim 1 , wherein
 the head length L (mm), head depth W (mm) and sweet spot height H (mm) satisfy
     H≦ 76×( W/L )−34. 
   
     
     
         3 . The club head according to  claim 1 , wherein
 the head length L (mm), head depth W (mm) and sweet spot height H (mm) satisfy
     H≦ 76×( W/L )−39. 
   
     
     
         4 . The club head according to  claim 1 , wherein
 the head depth W (mm) satisfies
   0.060 W≦Q≦ 0.25 W    
   
       wherein “Q” is a distance (mm) of a sweet spot measured perpendicular to and from a vertical plane including the axis of a shaft inserting hole. 
     
     
         5 . The club head according to  claim 1 , wherein
 the volume of the head is 350 to 470 cc, and   the mass of the head is 180 to 220 grams.