Golf club

Abstract

A golf club includes a golf club head, and a shaft extending from one side of the golf club head. The shaft and the golf club head are made as a one-piece body from a prepreg sheet including a fiber structure impregnated with a resin. The fiber structure extends continuously from the shaft to the golf club head.

1 . A golf club comprising a golf club head, and a shaft extending from one side of said golf club head, said shaft and s aid golf club head being made as a one-piece body from a prepreg sheet including a fiber structure impregnated with a resin, said fiber structure extending continuously from said shaft to said golf club head. 
     
     
         2 . The golf club of  claim 1 , wherein said golf club is formed by laminating a plurality of said prepreg sheets respectively including first prepreg sections to form said shaft, and second prepreg sections to form said golf club head. 
     
     
         3 . The golf club of  claim 2 , wherein each of said first prepreg sections has a fiber orientation angle of 0 degree with respect to an extending direction of said shaft. 
     
     
         4 . The golf club of  claim 3 , wherein each of said prepreg sheets is cut into a plurality of strips in a respective one of said second prepreg sections, said strips being pulled apart from each other so that said strips have different fiber orientation angles with respect to the extending direction of said shaft. 
     
     
         5 . The golf club of  claim 1 , wherein each of said shaft and said golf club head has fiber orientation angles of 45 degrees and −45 degrees with respect to an extending direction of said shaft. 
     
     
         6 . The golf club of  claim 1 , wherein each of said shaft and said golf club head has fiber orientation angles of 0 degree and 90 degrees with respect to an extending direction of said shaft. 
     
     
         7 . The golf club of  claim 1 , wherein said fiber structure is a tubular multiaxial woven fabric. 
     
     
         8 . The golf club of  claim 1 , wherein said fiber structure includes a fiber selected from the group consisting of carbon fiber, glass fiber, Kevlar fiber, boron fiber, and combinations thereof.