Billiard cue having an improved shaft

Abstract

A billiard cue comprises a wood shaft and an inner rod. The shaft has a hollow portion and a solid portion. The hollow portion has a bore. The inner rod is made of material with a stiffness higher than woods. The length and outer diameter of the inner rod correspond to the bore for being tightly received in the bore. Thereby, the cue has the advantage of a wood material but without deformation due to the affect of the environment and a preferred control to the billiards.

What is claimed is:  
     
         1 . A billiard cue comprising 
 a wood shaft having a hollow portion and a solid portion, the hollow portion having a bore extending a predetermined distance along the length of the shaft; and    an inner rod made of material with a stiffness higher than woods, a length and outer diameter thereof corresponding to the bore for being tightly received in the bore.    
     
     
         2 . The billiard cue as claimed in  claim 1 , wherein the inner rod is a hollow rod.  
     
     
         3 . The billiard cue as claimed in  claim 1 , wherein the length of the bore is greater than or equal to 10 inches.  
     
     
         4 . The billiard cue as claimed in  claim 1 ,  2  or  3 , wherein the diameter of the bore is greater than or equal to 0.2 inches.  
     
     
         5 . The billiard cue as claimed in  claim 1 , wherein the wood shaft is formed of at least two longitudinal sections, each section having a longitudinal groove with a predetermined length, each groove opened through one of the lateral faces of the sections for forming the bore when the sections secured together.  
     
     
         6 . A billiard cue comprising: 
 a wood shaft comprising a first segment and a second segment;    wherein the first segment has a front end, a rear end, a first solid portion extending from the front end toward the rear end with a predetermined length, and a first hollow portion extending from one end of the first solid portion toward the rear end of the first segment; and the first hollow portion has a bore extending a predetermined distance along the length of the segment and the bore has an opening at the rear end of the first segment;    wherein the second segment has a front end, a rear end, a second hollow portion extending from the front end towards the rear end of the second segment with a predetermined length, and a second solid portion extending from one end of the second hollow portion toward the rear end of the second segment; the second hollow portion has a bore extending a predetermined distance along the length of the segment; the bore has an opening at of the front end of the second segment;    wherein the front end of the second segment is connected to the rear end of the first segment, and the bores of the hollow portions will be formed as a cylindrical hole when the segments are connected together; and    an inner rod made of material with a stiffness higher than woods, a length and outer diameter thereof corresponding to the cylindrical hole for being tightly received in the hole.    
     
     
         7 .The billiard cue-as claimed in  claim 6 , wherein the inner rod is a hollow rod.  
     
     
         8 . The billiard cue as claimed in  claim 6 , wherein the length of the cylindrical hole is greater than or equal to 10 inches.  
     
     
         9 . The billiard cue as claimed in claims  6 ,  7  or  8 , wherein the diameter of the bore of each segment is greater than or equal to 0.2 inches.