Golf swing training machine

Abstract

A golf swing training device, in which a golf club or golf club simulating device is propelled by the arms and hands of a person along a desired arcuate trajectory under an optimal amount of muscular force, maintains the hands of the user on a single optimal plane, while allowing the club to travel on a separate plane through a structure containing a plurality of rotational means allowing all necessary anatomically desireable movements.

What is claimed is:  
     
         1 . A swing training device for practicing the propelling by a person's arms and hands of a club along a defined, arcuate trajectory of a given radius, above a ground plane according to said person's given height and arm length, said device comprising: 
 a stationary frame;    a movable elongated structure pivotable about a first axis and carried on said frame, with a second pivotable means at one end, the axis of which is substantially parallel to the said first axis;    a second movable structure connecting to said second pivotable means which supports a third pivotable means, the axis of which is substantially perpendicular to the second said axis;    a third movable structure supported by the third pivotable means which supports a fourth pivotable means, the axis of which is substantially perpendicular to the third said axis;    a means for retaining a club by the third movable structure such that said club can freely rotate about said fourth axis.    
     
     
         2 . The device of  claim 1 , wherein a golf club simulating device replaces said club, where said device features a grip, shaft and weighted end.  
     
     
         3 . The device of  claim 1 , wherein said assembly comprises a means for adjustably resisting said movements.  
     
     
         4 . The device of  claim 1 , wherein said assembly comprises: means for adjusting the height and slant of said trajectory in reference to said ground plane; and means for adjusting the radius of said trajectory.  
     
     
         5 . The device of  claim 1 , wherein said club comprises an elongated object having an axis of gravity; and said assembly includes means for rotating said club about said axis.  
     
     
         6 . The device of  claim 1 , wherein said first and second axes are not exactly parallel.  
     
     
         7 . A swing training device for practicing the propelling by a person's arms and hands of a sport implement along a defined, arcuate trajectory of a given radius, above a ground plane according to said person's given height and arm length, said device comprising: 
 a sporting implement;    a stationary frame;    a movable structure shaped and dimensioned to hold said implement; and    an articulated assembly linking said frame to said structure;    wherein said articulated assembly is composed, shaped and dimensioned to confine the gripped portion of said implement within a single optimal trajectory during repeated movements imparted to said implement by said person's arms and hands.    
     
     
         8 . The device of  claim 7 , wherein said assembly comprises: 
 a first member height-adjustably secured to said stationary frame;    an arm rotatively mounted on said first member about a first oblique axis;    means for rotatively mounting said movable structure upon said arm about a second axis spaced apart from, and substantially parallel to said first axis; and    means for adjustably varying the distance between said first and second axes.    
     
     
         9 . The device of  claim 8 , wherein said implement comprises: 
 an elongated object having an axis of gravity; and    said movable structure comprises means for rotatively mounting said object about said axis of gravity substantially perpendicularly to said first and second axes.    
     
     
         10 . The device of  claim 8 , wherein said implement comprises a golf club.  
     
     
         11 . A swing training device which retains the grip portion of a club on a defined, inclined, arcuate trajectory of a given radius, above a ground plane, and allows said club's axis of gravity to travel on a separate arcuate trajectory of different inclination.  
     
     
         12 . A swing training device which retains a club by an articulated structure supporting four degrees of rotation.