Iron golf club set

Abstract

An iron golf club set comprises a plurality of iron golf clubs having respective club numbers different from each other. Face progressions of the iron golf clubs become gradually smaller from the club having the smallest club number toward the other club having the largest club number in at least one group comprising a series of consecutively numbered clubs of the plurality of iron golf clubs.

What is claimed is:  
     
         1 . An iron golf club set, which comprises: 
 a plurality of iron golf clubs having respective club numbers different from each other,    wherein:    face progressions of said iron golf clubs become gradually smaller from a club having a smallest club number toward an other club having a largest club number in at least one group comprising a series of consecutively numbered clubs of said plurality of iron golf clubs.    
     
     
         2 . The iron golf club set as claimed in    claim 1   , wherein: 
 a reduction ratio in the face progressions of the iron golf clubs can be expressed by a straight line.    
     
     
         3 . The iron golf club set as claimed in    claim 1   , wherein: 
 a reduction ratio in the face progressions of the iron golf clubs can be expressed by a curved line.    
     
     
         4 . The iron golf club set as claimed in    claim 1   , wherein: 
 the face progressions of all of said iron golf clubs become gradually smaller from the club having the smallest club number toward the other club having the largest club number.    
     
     
         5 . The iron golf club set as claimed in    claim 1   , wherein: 
 said plurality of iron golf clubs is to be used for a right-handed golf player.    
     
     
         6 . The iron golf club set as claimed in    claim 1   , wherein: 
 said plurality of iron golf clubs is to be used for a left-handed golf player.