Deviation measuring apparatus

Abstract

This invention intends to provide a deviation measuring apparatus which enables to select a bat capable of bringing a hitting position of a ball to near the center core position of a baseball bat or correct a batting form of a batter by measuring a difference between the hitting position of the ball and the center core position of the bat when the ball is hit with the bat actually. More specifically, there is provided a deviation measuring apparatus for measuring the degree of deviation between the center core position of a baseball bat and the hitting position of a ball by the bat, comprising: a high speed camera for photographing a condition in which the bat strikes the ball; and computing means for obtaining a distance of a difference between the center core position of the bat and the hitting position of the ball.

1 . A deviation measuring apparatus for measuring a degree of deviation between a center core position of a baseball bat and a hitting position of a ball by the bat, comprising: 
 a high speed camera for photographing a condition in which the bat strikes the ball; and computing means for obtaining a distance of a difference between the center core position of the bat and the hitting position of the ball.    
   
   
       2 . A deviation measuring apparatus for measuring a degree of deviation between a center core position of a baseball bat and a hitting position of a ball by the bat, comprising: 
 a high speed camera for photographing a condition in which the bat strikes the ball;    detecting means for detecting an impact timing of the ball by the bat; and    computing means for obtaining a distance of a difference between the center core position of the bat and the hitting position of the ball based on a picture of the high speed camera at the impact timing.    
   
   
       3 . The deviation measuring apparatus according to  claim 1  wherein the ball is set statically.  
   
   
       4 . The deviation measuring apparatus according to  claim 1  wherein the ball is thrown.  
   
   
       5 . The deviation measuring apparatus according to  claim 1  wherein the detecting means is provided in the ball or the bat for detecting the impact timing of the ball.  
   
   
       6 . The deviation measuring apparatus according to  claim 1  wherein the high speed camera is provided above the hitting position of the ball by the bat.  
   
   
       7 . The deviation measuring apparatus according to  claim 1  wherein the high speed camera is provided below the hitting position of the ball.  
   
   
       8 . A deviation measuring apparatus comprising: a high speed camera for photographing a condition in which the ball is hit by the bat from sideway; and 
 computing means for obtaining a degree of deviation in a vertical direction between a position of the bat and the hitting position of the ball based on a picture of the high speed camera.    
   
   
       9 . The deviation measuring apparatus according to  claim 2  wherein the ball is set statically.  
   
   
       10 . The deviation measuring apparatus according to  claim 2  wherein the ball is thrown.  
   
   
       11 . The deviation measuring apparatus according to  claim 2  wherein the detecting means is provided in the ball or the bat for detecting the impact timing of the ball.  
   
   
       12 . The deviation measuring apparatus according to  claim 2  wherein the high speed camera is provided above the hitting position of the ball by the bat.  
   
   
       13 . The deviation measuring apparatus according to  claim 2  wherein the high speed camera is provided below the hitting position of the ball.