Golf swing assistance apparatus

Abstract

A golf swing assistance apparatus generates an electronic alarm sound at the top of a back swing and at a finish, during a golf swing, so that the golfer can be informed of a period of time during which the swing is temporarily stopped at the top of the back swing to maintain the feeling for swing rhythm and prevent a head-up during a down swing, to the finish and perform a golf swing with a good posture.

1 . A golf swing assistance apparatus comprising: 
 a cylindrical body made of conductive material;    a metal ball contained in a hole of the cylindrical body and adapted to move in the gravitational direction according to the slope of the cylindrical body;    a contact portion positioned on an end of the cylindrical body to form an electrically connected circuit with the cylindrical body and the metal ball upon contacting the metal ball;    an alarm device connected to the closed circuit in series to generate an alarm sound when the cylindrical body, the metal ball, and the contact portion establish a connected circuit; and    a power supply for applying electric power to the closed circuit.    
   
   
       2 . A golf swing assistance apparatus as claimed in  claim 1 , further comprising a number of small metal balls between the metal ball and the contact portion.  
   
   
       3 . A golf swing assistance apparatus comprising: 
 a cylindrical body made of conductive material;    a metal ball contained in a hole of the cylindrical body and adapted to move in the gravitational direction according to the slope of the cylindrical body;    first and second contact portions positioned on both ends of the cylindrical body, respectively, and adapted to contact the metal ball;    a delay circuit connected to the second contact portion;    an input gate connected to the first contact portion and the delay circuit and adapted to generate an actuation signal in response to a detection signal from the first contact portion after the delay circuit is turned on in response to a detection signal from the second contact portion; and    an alarm device adapted to generate an alarm sound in response to the actuation signal from the input gate.    
   
   
       4 . A golf swing assistance apparatus as claimed in  claim 3 , further comprising a number of small metal balls between the metal ball and the first contact portion.