Sports specific movement emulators and cams

Abstract

Sports specific movement emulators are disclosed that permit an athlete to practice and develop specific motions needed to participate skillfully and at a high level in a particular sport. The emulators have designs that force the user to train and strengthen sports specific muscles in the lower body safely and repetitively. Examples of such emulators include golf swing trainers and running trainers.

1 . A motion emulator, comprising:
 a base and a pair of spaced-apart uprights attached to and extending upwardly from the base;   a weight stack having a number of individual weights mounted for sliding movement between the members of the upright;   a cable connecting the weight stack to at least one body-engagement member for permitting a user to repetitively emulate a desired motion; and   a hook, said hook attached to said cable, and a chain, said chain attached to said hook.   
   
   
       2 . The motion emulator of  claim 1  wherein said body-engagement member comprises a belt, a fastener, said fastener joined to said belt, a first bracket, said first bracket affixed to said belt, said first bracket for connecting said belt assembly to a motion emulator. 
   
   
       3 . The motion emulator of  claim 2  wherein said body-engagement member further comprises a second bracket, said second bracket positioned on said belt. 
   
   
       4 . A running emulator comprising:
 a treadmill,   a first upright, said first upright positioned proximate said treadmill,   a leg adjustment assembly, said leg adjustment assembly affixed to said first upright,   a cam,   a leg extension, said leg extension pivotally mounted on said cam,   a resistance cylinder, said resistance cylinder joined to said cam, and said resistance cylinder affixed to said upright.   
   
   
       5 . The running emulator of  claim 4  further comprising a foot pedal, said foot pedal mounted to said leg extension. 
   
   
       6 . A sport emulator comprising:
 a base,   an upright, said upright positioned on said base,   a carrier arm, said carrier arm pivotally affixed to said upright,   a swing arm, said swing arm rotatably affixed to said carrier arm, and   a grip adjustment assembly, said grip adjustment assembly joined to said swing arm.   
   
   
       7 . The sport emulator of  claim 6  wherein said grip adjustment assembly comprises a grip, said grip for simulating a golf club swing. 
   
   
       8 . A cam for use in a golf swing emulator comprising:
 a body,   a first axle, said first axle affixed to said body,   a swing arm, said swing arm attached to said body, and   a cable attachment, said cable attachment affixed to said body whereby movement of said swing arm causes said body to rotate about said first axle.   
   
   
       9 . The cam of  claim 8  having a pear shape. 
   
   
       10 . A cam for a sports movement emulator comprising:
 a body,   an axle, said axle pivotally affixed to said body,   a bracket, said bracket attached to said body, said bracket for receiving a cable from the sports movement emulator,   a swing arm, said swing arm attached to said axle for rotation thereof.   
   
   
       11 . The cam of  claim 10  wherein said body is pear shaped. 
   
   
       12 . The cam of  claim 10  further comprising a stop block, said stop block attached to said body proximate said axle. 
   
   
       13 . The cam of  claim 12  further comprising a base, said base attached to said axle, a pin, said pin positioned on said base to contact said stop block. 
   
   
       14 . The cam of  claim 10  further comprising pairs of stop blocks, said pairs of stop blocks positioned on said body proximate said axle.