Bat structure

Abstract

An improved bat structure has at least a PU casting hi-rebound annular hollow member in the space interiorly of the inner wall of the hitting area of the bat and is clung to the inner wall of the hitting area. The annular hollow member can have the function of eliminating the vibration induced by collision between a ball and the bat when in hitting. And an instantaneous rebound force generated by the PU annular hollow member can also increase hitting power; furthermore, because of the fast restoration characteristic of the PU material in impacting, the deformation of the bat caused by long-term use will be reduced to help extend life-span of the bat.

1 . An improved bat structure comprising a main body of a bat and being characterized by having at least a PU casting hi-rebound annular hollow member provided in the space interiorly of the inner wall of a hitting area of said main body of said bat.  
     
     
         2 . The improved bat structure as in  claim 1 , wherein, said PU casting hi-rebound annular hollow member is plural in amount.  
     
     
         3 . The improved bat structure as in  claim 1 , wherein, said PU casting hi-rebound annular hollow member is completely clung to said inner wall of said hitting area of said main body of said bat.