Jog cart training attachment
BACKGROUND OF THE INVENTION 
     A typical two-wheeled jog cart will conventionally include a main frame of inverted U-shape, with the wheels journaled at the lower ends of the legs of the U-shaped frame and a seat attached to the bight portion of the frame. A pair of thills extend forwardly from the main frame along opposite sides of the flanks of the horse to which the cart is attached, and a cross bar extending between the thills just to the rear of the horse carries a pair of downwardly depending loops into which a rider seated on the cart will place his feet with his legs raised to a substantially horizontal position. 
     In breaking a horse to a jog cart, the horse, even though broken to a saddle, may buck, kick or otherwise exhibit unruly behavior when an attempt is made to train the horse to pull a jog cart. 
     Obviously the occupant of the cart, seated with his or her legs extended before them, is in a vulnerable position, and as a result can be subjected to serious injury. 
     Additionally, the rider cannot easily and safely leave the cart should the horse exhibit such dangerous behavior, all of which renders training a horse to a jog cart a hazardous experience. 
     SUMMARY OF THE INVENTION 
     In accordance with the present invention an attachment is provided which can be detachably mounted to the main frame of a jog cart, and which permits a trainer to stand at the rear of the cart so that he or she can simply step off should the horse being trained react dangerously to the training exercise. Additionally, it will be apparent that the present invention is useful in teaching beginning drivers. 
     The attachment includes a footrest, preferably provided with a non-slip type surface which is mounted at the rear and partially beneath the seat of a jog cart and with its surface inclined slightly forwardly and downwardly, so that the trainer has a natural tendency to lean forward. 
     To support the trainer in this position, a stabilizing assembly is provided which includes a pair of spaced parallel uprights received at their lower ends in sockets mounted on the footrest and having first portions extending substantially vertically upwardly, medial portions inclined forwardly and upwardly and interconnected by a cross brace, and upper portions which also extend substantially vertically upwardly. 
     The upper portion carries a padded support member having outwardly projecting wings, so that as the trainer leans forwardly with his or her chest against the central portion of the support member the wings of the support member can be gripped between the upper arms and torso of the trainer, leaving the trainer&#39;s hands free to handle the reins. To accommodate trainers of different heights, the support member is vertically adjustable along the uprights. 
     The attachment is mounted on the jog cart by means of a main support bar to which the footrest is preferably pivotally attached, and a series of struts which extend between the main support bar and the footrest to the main frame of the jog cart. 
     The struts are preferably adjustable in length to accommodate various styles and sizes of jog carts, and the pivotal mounting of the footrest on the main support bar permits the footrest to be pivoted up beneath the seat when not in use after the uprights have been removed from their sockets on the footrest. 
     Thus, it will be seen that with the present invention a trainer may comfortably stand on a footrest with his or her center of gravity approximately in the position that it would be if he or she were seated on the jog cart, and with their body urged forwardly against the padded support member of the stabilizing assembly and the wing portions of the support member gripped between the upper arms and torso of the trainer, leaving the hands of the trainer free to hold the reins, but positioning the trainer nonetheless such that he or she may simply step off the cart should the horse begin exhibiting potentially dangerous behavior. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a side view of the training attachment of the present invention and a portion of the jog cart to which it is attached; 
     FIG. 2 is an exploded perspective view of the attachement; 
     FIG. 3 is a perspective view of the attachment and a portion of a jog cart to which it is attached; 
     FIG. 4 is a rear elevational view of the attachment and a portion of a jog cart; and 
     FIG. 5 is a side elevational view of the attachment and a portion of a jog cart showing a trainer in position on the attachment. 
    
    
     DESCRIPTION OF THE PREFERRED EMBODIMENT 
     As best seen in FIGS. 3 and 4 of the drawings, a conventional jog cart will typically include a substantially U-shaped frame 10 having wheels 12 journaled at the lower ends of the legs 13 of the frame and a seat 14 mounted on the bight portion of the frame. Additionally, a pair of thills 16 extend, as seen in FIG. 3, forwardly where they will be positioned on opposite sides of the flanks of a horse to which the cart is to be attached, and braces 18, as also shown in phantom lines in FIG. 1, may extend upwardly and forwardly from the legs of the frame to the thills. 
     With reference particularly to FIGS. 2 and 3 of the drawings, the training attachment 20 includes a main support bar 22 having forwardly curved ends 24 telescopically receiving outer struts 26. Inwardly of the outer ends of the main support bar 22 intermediate struts 28 project upwardly and forwardly from the main support bar and are attached thereto by means of ears 29. 
     A footrest 30 is provided with a non-slip supporting surface 32, which is inclined slightly downwardly and forwardly, and a pair of side plates 34, each provided with a notched portion 36. The notched portions 36 are adapted to receive the main support bar 22, and closure plates 38 are attached by means of bolts or the like 40 to enclose the main support bar and provide a pivotal mounting of the footrest 30 on the main support bar. Attached to the footrest inwardly of the side plates 34 by welding or the like are upwardly opening tubular sockets 42. 
     A stabilizing assembly 44 comprises a pair of spaced parallel uprights 46, each including an upper, substantially vertically extending portion 48, a medial, forwardly and upwardly angled portion 50, a interconnecting cross piece 52 and lower, substantially vertically extending portions 54 having their lower ends received in the sockets 42 and secured therein by set screws or the like 56. At its upper end the stabilizing assembly is provided with an upper support member 58 having outwardly projecting wings 60. 
     A median strut 62 has a flattened, substantially vertically extending attaching portion 64 at its lower end, which is attached to a substantially vertically extending surface 66 (see FIG. 5) of the footrest 30 by means of bolts or the like 68. 
     It will be noted that each of the struts 26, 28 and 62 are adjustable by virtue of the multiple bolt openings 70, 71 and 72, and bolts 73, 74 and 68 respectively, and the outer ends of each of the struts are provided with clamps 76, 78 and 80 for attachment to the U-shaped frame 10 of a jog cart, as best shown in FIG. 3 of the drawings. 
     As seen in FIG. 1 of the drawings, the upper support member 58 has attached thereto in any convenient fashion collars 82 which slidably receive upper portions 48 of the uprights and can be secured along the portions 48 by means of set screws or the like 84. 
     With the above construction it will be seen that a trainer, as shown in FIGS. 4 and 5 of the drawing, may stand upon the slightly forwardly and downwardly inclined non-slip surface of the footrest with his or her weight shifted slightly forwardly and against the upper support member 50, with the wings 60 of the support member received between the elbows or upper arms and upper torso of a trainer, with the trainer&#39;s hands free to hold the reins 86. The support member is, of course, adjusted vertically as indicated above to position it correctly for the height of a trainer standing on the footrest 30. 
     Thus, the trainer is positioned sufficiently to the rear of a horse attached to the jog cart that he or she is not in danger of being kicked by a horse pulling the cart, but yet because of the positioning of a footrest partially beneath the seat 14 of a cart the center of gravity of a trainer is very closely positioned to where it would be if the trainer were seated on the cart. However, while a trainer positioned on the seat 14 would be in a hazardous position from which he or she could not readily exit the cart if a horse began exhibiting unruly behavior, in the standing position shown in FIGS. 4 and 5 of the drawing, a trainer may simply step off the footrest whenever a dangerous situation develops. 
     If it is desired to utilize the jog cart for other than training purposes, the set screws 56 in the sockets 42 can be loosened and the entire stabilizing assembly 44 removed, after which the bolt 68 is removed and the entire footrest pivoted upwardly about the main support bar 22 to an inverted position beneath the seat 14 as shown in phantom lines in FIG. 1 of the drawings. Thus, even though the training attachment is readily attached and detached in its entirety to or from a jog cart, if desired the attachment may be simply stowed to an inoperative position as described above without completely removing the attachment from the jog cart. 
     While the form of apparatus herein described constitutes a preferred embodiment of this invention, it is to be uderstood that the invention is not limited to this precise form of apparatus, and that changes may be made therein without departing from the scope of the invention which is defined in the appended claims.