Billiard cue

Abstract

Disclosed is a billiard cue that realizes weight reduction of a top end portion of a shaft without reducing structural strength, that improves stability and controllability in hitting a ball, and that gives a player a comfortable feeling hit and fulfilling sensation of billiard play. This billiard cue is a single rod-shape body including a butt and a shaft connected to each other through a joint. The shaft is provided with a hollow section running inside of the shaft along the center axis in the longitudinal direction, and an internal support structure is arranged within the hollow section to support the hollow section from inside.

1 . A billiard cue formed into a single rod-like piece by a butt and a shaft that are connected to each other through a joint, 
 wherein the shaft is provided with a hollow section running through the inside of the shaft along a center axis in a longitudinal direction, and    an internal support structure is provided within the hollow section to support the hollow section from inside.    
   
   
       2 . The billiard cue according to  claim 1 , 
 wherein the internal support structure in the hollow section is either a structure (a) including an outer frame body which abuts on an inner wall surface of the hollow section to support the same and a support member which supports the outer frame body, or a structure (b) including a support member which abuts on the inner wall surface of the hollow section and supports the same, or a structure having both of (a) and (b).    
   
   
       3 . The billiard cue according to  claim 1 , 
 wherein the shaft is a single rod-like body made by combining a shaft body, a ferrule section, and a top end member in this order, and    the hollow section is provided through inside of the shaft body and the ferrule section.    
   
   
       4 . The billiard cue according to  claim 1 , 
 wherein the shaft is a single rod-like body made by combining a shaft body in which the hollow section is provided, an extended connecting section, and a top end member in this order, and    the internal support structure is a single piece structure where a support member within the hollow section and the extended connecting section are formed into a single body.    
   
   
       5 . The billiard cue according to  claim 1 , 
 wherein a material of the internal support structure is any of wood, urethane foam, expanded polystyrene, expanded polyethylene, Styrofoam, a plastic material, a fiber material, and a light-weight metal material.    
   
   
       6 . The billiard cue according to  claim 2 , 
 wherein the shaft is a single rod-like body made by combining a shaft body, a ferrule section, and a top end member in this order, and    the hollow section is provided through inside of the shaft body and the ferrule section.    
   
   
       7 . The billiard cue according to  claim 2 , 
 wherein the shaft is a single rod-like body made by combining a shaft body in which the hollow section is provided, an extended connecting section, and a top end member in this order, and    the internal support structure is a single piece structure where a support member within the hollow section and the extended connecting section are formed into a single body.    
   
   
       8 . The billiard cue according to  claim 2 , 
 wherein a material of the internal support structure is any of wood, urethane foam, expanded polystyrene, expanded polyethylene, Styrofoam, a plastic material, a fiber material, and a light-weight metal material.    
   
   
       9 . The billiard cue according to  claim 3 , 
 wherein a material of the internal support structure is any of wood, urethane foam, expanded polystyrene, expanded polyethylene, Styrofoam, a plastic material, a fiber material, and a light-weight metal material.    
   
   
       10 . The billiard cue according to  claim 6 , 
 wherein a material of the internal support structure is any of wood, urethane foam, expanded polystyrene, expanded polyethylene, Styrofoam, a plastic material, a fiber material, and a light-weight metal material.    
   
   
       11 . The billiard cue according to  claim 4 , 
 wherein a material of the internal support structure is any of wood, urethane foam, expanded polystyrene, expanded polyethylene, Styrofoam, a plastic material, a fiber material, and a light-weight metal material.    
   
   
       12 . The billiard cue according to  claim 7 , 
 wherein a material of the internal support structure is any of wood, urethane foam, expanded polystyrene, expanded polyethylene, Styrofoam, a plastic material, a fiber material, and a light-weight metal material.