Golf swing training device

Abstract

A golf training device that mounts on a golf club and defines a swing plane throughout the swing of the club. The device includes inner and outer collars that interlock to retain the club, and permit rotation of the club through the swing motion.

1 . A bracket for rotatably engaging a golf club comprising: 
 an outer collar having a generally cylindrical inner surface;    an inner collar rotatably mounted in the outer collar, the inner collar having an inner surface adapted to releasably engage a first portion of a golf club;    the outer collar having a first notch having a width selected to receive a golf club shaft and to retain the inner collar within the outer collar;    the inner collar having a second notch sized to receive a golf club shaft; and,    the inner collar rotatable between a first position within the outer shaft wherein the first and second notches are aligned and a second position wherein the first and second notches are offset.    
   
   
       2 . A bracket for rotatably engaging a golf club according to  claim 1  further comprising: 
 an elongate member extending from the outer collar; and,    a sling having first and second spaced apart lines attached to the elongate member and connected to a third line, the third line having a distal end connected to a mounting apparatus, the first and second lines having respective lengths selected so that when the first and second lines are held taut the third line is oriented along a line extending from the mounting apparatus to a point between the hands of a user gripping the golf club.    
   
   
       3 . A bracket for rotatably engaging a golf club according to  claim 1  wherein the inner collar includes first and second end plates having respective diameters larger than the inner diameter of the outer collar.  
   
   
       4 . A bracket for rotatably engaging a golf club according to  claim 1  wherein the inner collar includes a tapered inner surface.  
   
   
       5 . A bracket for rotatably engaging a golf club according to  claim 1  wherein the inner collar includes a rounded tapered inner surface that tapers from between 0.7 and 0.9 inches in diameter to between 0.6-0.87 inches in diameter.  
   
   
       6 . A bracket for rotatably engaging a golf club according to  claim 1  further comprising: 
 an elongate member extending from the outer collar; and,    a sling having first and second spaced apart lines attached to the elongate member and to a mounting apparatus, the first and second lines having respective lengths selected so that the first and second lines define a first axis along a line extending from the mounting apparatus to a balance point between the hands of a user gripping the golf club.    
   
   
       7 . A bracket for rotatably engaging a golf club according to  claim 1  further comprising the golf club rotatable at an angle of 90 degrees about an axis coincident with the third line.