Billiard cue

Abstract

A billiard cue of a simple structure is provided, in which a gravity center of the entire cue can be freely and finely adjusted. A billiard cue is provided, in which the end parts of a butt 10 and a shaft 20 are jointly connected by joint members 2 in a manner to form a stick shape, wherein a first hollow hole 10 a is bored in the rear end part of the butt 10 , therein a first weight 12 being received, with which is adjusted a gravity center. For attaching the joint members 2 in each end of the butt 10 and the shaft 20 jointly connected to form a stick shape, second hollow holes 10 b and 20 b are bored respectively, and in the second hollow hole 20 b of the shaft 20 , is received a second weight 22 , with which can be adjusted a gravity center, and a joint cylinder body 24 of the joint members 2 being attached therein.

1 - 8 . (canceled)  
   
   
       9 . A billiard cue formed in a stick shape, comprising: 
 a butt; the butt having a first hollow hole formed in a rear end part thereof and a second hollow hole in a front end part thereof;    a shaft jointly connected with the butt, the shaft having a third hollow hole formed in a rear end part thereof;    a first weight received in the first hollow hole for adjusting a weight balance;    a joint pin fixed in one of the second and third hollow holes, the joint pin having a protruding stick-shaped male screw, while another one of the second and third holes has an internally threaded area such that the joint pin and the internally threaded area are so screwed together as to jointly connect the butt and the shaft in the stick shape;    a tubular weight joint fixed within said another one of the second and third hollow holes, the tubular weight joint being consecutively provided adjacent the internally threaded area, the tubular weight joint having a female screw in its inner periphery; and    a second weight received in the tubular weight joint for adjusting the weight balance, the second weight being selectively formed either as a male screw having a head part or as a male screw not having a head part, the second weight being screwed with the female screw to a desired position in the tubular weight joint.    
   
   
       10 . The billiard cue according to  claim 9 , wherein the joint pin and the second weight have the same screwing shapes.  
   
   
       11 . A billiard cue formed in a stick shape, comprising: 
 a butt; the butt having a first hollow hole formed in a rear end part thereof and a second hollow hole in a front end part thereof;    a shaft jointly connected with the butt, the shaft having a third hollow hole formed in a rear end part thereof;    a first weight received in the first hollow hole for adjusting a weight balance;    a joint pin fixed in one of the second and third hollow holes, the joint pin having a protruding stick-shaped male screw;    a joint cylinder body in an approximately tubular shape, the joint cylinder body being received in another one of the second and third hollow holes, the joint cylinder body having an internally threaded area in its inner periphery such that the joint pin and the joint cylinder body are so screwed together as to jointly connect the butt and the shaft in the stick shape;    a tubular weight joint fixed within said another one of the second and third hollow holes, the tubular weight joint being consecutively provided adjacent the joint cylinder body, the tubular weight joint having a female screw in its inner periphery; and    a second weight received in the tubular weight joint for adjusting the weight balance, the second weight being selectively formed either as a male screw having a head part or as a male screw not having a head part, the second weight being screwed with the female screw to a desired position in the tubular weight joint;    the joint cylinder body and the tubular weight joint being integrally formed in one body.    
   
   
       12 . The billiard cue according to  claim 11 , wherein the joint pin and the second weight have the same screwing shapes.