Golf club

Abstract

A golf club of the present invention comprises at least one adjusting mechanism. In the golf club, at least two specifications can be adjusted independently of each other. Preferably, a head, a shaft, a grip, or a joined part therebetween has an adjusting mechanism ( 1 ). The head, the shaft, the grip, or the joined part has further other adjusting mechanism ( 2 ). Preferably, the adjusting mechanism ( 1 ) and the adjusting mechanism ( 2 ) can work independently of each other. The number of the adjusting mechanisms is not restricted. Since the plurality of specifications can be adjusted independently of each other, a degree of freedom of adjustability is improved. These adjusting mechanisms can improve accuracy of the adjustability. The specification capable of being adjusted is not restricted.

What is claimed is: 
     
         1 . A golf club comprising at least one adjusting mechanism, wherein at least two specifications can be adjusted independently of each other. 
     
     
         2 . The golf club according to  claim 1 , wherein a head, a shaft, a grip, or a joined part therebetween has an adjusting mechanism ( 1 );
 the head, the shaft, the grip, or the joined part has further other adjusting mechanism ( 2 ); and   the adjusting mechanism ( 1 ) and the adjusting mechanism ( 2 ) can work independently of each other.   
     
     
         3 . The golf club according to  claim 2 , wherein the adjusting mechanism ( 1 ) or the adjusting mechanism ( 2 ) is located at a place other than a hosel part. 
     
     
         4 . The golf club according to  claim 2 , wherein the adjusting mechanism ( 1 ) and the adjusting mechanism ( 2 ) are located at places other than a hosel part. 
     
     
         5 . The golf club according to  claim 1 , wherein all the adjusting mechanisms are located at places other than a hosel part. 
     
     
         6 . The golf club according to  claim 1 , wherein the two or more specifications selected from a loft angle, a lie angle, a face angle, a face area, a position of a center of gravity of a head, a swingweight, a club length, a position of a center of gravity of a club, a frequency of the club, a club weight, ahead shape, a head volume, a head weight, a flex of a shaft, a flex point of a shaft, a torque of the shaft, flexural rigidity distribution of the shaft, torsional rigidity distribution of the shaft, a shaft weight, weight distribution of the shaft, a position of a center of gravity of the shaft, a length of the shaft, a grip outer diameter, a grip weight, a position of a center of gravity of a grip, a grip length, a specification of a face groove, a face progression, a moment of inertia of the head, a moment of inertia of the club, a coefficient of restitution of the head to a ball, and a friction coefficient of the head to the ball can be adjusted independently of each other. 
     
     
         7 . The golf club according to  claim 1 , wherein the plurality of specifications include one or more specific specifications selected from a loft angle, a lie angle, a club length, and a club weight; and an adjustment range is equal to or greater than a width corresponding to two-number clubs in all the specific specifications. 
     
     
         8 . The golf club according to  claim 1 , wherein the golf club includes a sleeve changing mechanism as the adjusting mechanism. 
     
     
         9 . The golf club according to  claim 1 , wherein the golf club has a first adjusting mechanism, a second adjusting mechanism, and a third adjusting mechanism, and the three adjusting mechanisms can work independently of each other. 
     
     
         10 . The golf club according to  claim 1 , wherein all the specifications capable of being adjusted can be adjusted independently of each other. 
     
     
         11 . A golf club set comprising a plurality of golf clubs according to  claim 1 .