US2002077193A1PendingUtilityA1

Golf club and golf club head

44
Priority: Dec 20, 2000Filed: Sep 17, 2001Published: Jun 20, 2002
Est. expiryDec 20, 2020(expired)· nominal 20-yr term from priority
Inventors:Hitoshi Takeda
A63B 53/0466A63B 2053/0491A63B 53/047A63B 53/02A63B 2209/00A63B 60/02A63B 53/0408
44
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A golf club whose balance adjustment is easily performed without reducing the strength of a shaft. A golf club basically comprises a head body 1 with one side; a hosel hole 4 with an opening on the one side; and a shaft 2 fitted thereinto. The hosel hole 4 comprises a first hole 5 extending from the opening; and a second hole 6 extending from a bottom of the first hole 5. The first hole 5 allows the shaft 2 to be fitted thereinto, while the second hole 6 allows one of weight-adjustment balance weights 7 to be provided therein.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A golf club which comprising: a head body with one side, a hosel hole with an opening on said one side of the head body; and a shaft fitted thereinto, wherein said hosel hole comprises: a first hole extending from said opening; and a second hole extending from a bottom of said first hole, said first hole having said shaft fitted thereinto, while said second hole having one of weight-adjustment balance weights provided therein.  
     
     
         2 . A golf club head comprising a head body with a hosel hole on one side, wherein said hosel hole comprises: a first hole extending from an opening of said hosel hole; and a second hole extending from a bottom of said first hole, said first hole having a shaft fitted thereinto, while said second hole having one of weight-adjustment balance weights provided therein, said weight-adjustment balance weights being prepared in order that the difference in weight between the golf club head and a standardized one may be within 5 g.  
     
     
         3 . A golf club according to  claim 1 , further comprising a through-hole formed through a side face of said weight-adjustment balance weight, wherein the adjustment of weight is performed by varying a size of a diameter of said through-hole.  
     
     
         4 . A golf club head according to  claim 2 , further comprising a through-hole formed through a side face of said weight-adjustment balance weight, wherein the adjustment of weight is performed in units of 5 g by varying a size of a diameter of said through-hole.  
     
     
         5 . A golf club according to  claim 3 , wherein said weight-adjustment balance weight is of a short and columnar shape.  
     
     
         6 . A golf club head according to  claim 4 , wherein said weight-adjustment balance weight is of a short and columnar shape.  
     
     
         7 . A golf club according to  claim 5 , wherein said weight-adjustment balance weight is made of tungsten alloy.  
     
     
         8 . A golf club head according to  claim 6 , wherein said weight-adjustment balance weight is made of tungsten alloy.  
     
     
         9 . A golf club according to  claim 5 , wherein said weight-adjustment balance weight is made of plastic.  
     
     
         10 . A golf club head according to  claim 6 , wherein said weight-adjustment balance weight is made of plastic.

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