referring now to fig1 and 3 , a giant trainer 10 is illustrated in accordance with an embodiment of the invention and has an engagement 20 rotationally coupled to a high bar 22 , the high bar itself forming no part of the present invention . the engagement permits rotation in the directions of arrow a and supports a safety harness 30 which is preferably sizable to fit the pelvis and shoulders of a range of gymnast users . the safety harness 30 can include one or more leg and shoulder straps 32 , 34 which accommodate the legs of a gymnast user . the safety harness 30 is vertically positionable relative to the engagement 26 and the high bar 22 by adjustable upper member 40 . in particular , the upper member can comprise telescoping tubes 42 , 44 each having respective apertures 46 that can be aligned and secured in position using a t - pin 48 , as is known in the art of exercise equipment , the t - pin 48 can include a spring based protrusion that yieldably locks the t - pin in a chosen position . the upper member 40 is adjustable so as to accommodate users of varying arm lengths . in use , a gymnast grips the high bar and has the safety harness 30 positioned at arms length from the high bar in a hanging position , as shown in fig1 . the t - pin 48 is positioned in the holes in tuber 42 , 44 to achieve this orientation of the upper member 40 . a gymnast starts from the hanging position below the bar in the giant trainer device 10 . with a series of swings , a gymnast will safely develop the strength and technique required to achieve an inverted position above the bar . the upper member is offset from the engagement 20 by cantilever 50 . cantilever 50 permits the user to hang below the high bar with the safety harness 30 generally positioned below the high bar when in the hanging position . optionally , the cantilever 50 is secured to the upper member 40 by a swivel joint 60 ( see fig4 ). the joint 60 permits at least rotation of the upper member 40 in the direction of arrow b . the joint 60 enables a user to release grip from the high bar 22 and perform a pirouette while being cradled by the safety harness 30 and supported from the high bar 22 , so as to not fall , by the engagement 20 . alternatively , the swivel joint 60 might be disposed between the engagement 20 and an upper end of the cantilever 50 . this arrangement would permit rotation of the upper member 40 in the direction of arrow b , and is presently believed to be an ideal location for the joint 60 . part of the motion required to achieve a giant from a hanging position is a series of “ taps ” combined with coordinated small arch and hollow positions which , when properly timed and repeated , advance the user from the hanging position to the start position , in which the gymnast user is upside down , with arms stretched downward and legs stretched upward . thereafter , the gymnast practices giants , with the trainer 10 attached , and completes the giant maneuver with all wrist shifting motions being performed . notably , the giant is performed in the trainer without a conventional cast or push away movement . in order to train leg position and movement in coordination with other movements , the trainer includes lower member 70 , illustrated as a u - shaped element . the cover member 70 is preferably adjustable , and can comprise telescoping tubes 72 , 74 which secure relative to one another by cinching respective alignment holes 76 with a t - bar 78 . the lower member is vertically adjustable so as to accommodate gymnasts of different leg length . a suitable setting for the lower member is one in which telescoping tubes 72 , 74 are cinched such that the user &# 39 ; s pelvis is in the safety harness 30 and the users legs are fully extended with pointed toes and extending through a grasp hole 82 of a follower board 80 . the follower board 80 provides a surface for the gymnast to stand on while mounting the trainer 10 that is , while securing himself or herself to the safety harness 30 and grasping the high bar 22 . the follower board has grasp hole 82 , which optionally is padded for comfort , which the gymnast uses to swing the bottom member 80 forward and back during tap and swing and giant movements . the bottom member and follower board 70 , 80 move as an assembly relative to the upper member 4 about a pivot 90 , shown in the detail view of fig5 . as shown in fig5 , the pivot 90 rotationally joins the upper member 40 to the lower member 70 via a housing 92 which is rigidly secured to the upper member via adhesive 94 . the housing includes a hollow portion within which lower member 70 can rotate . in one embodiment , the pivot comprises a milled t - joint section of pvc tubing . rotation of the lower member is preferably limited by a slot 96 and pin 98 arrangement . for example , the slot and pin can limit the lower member to a constrained range of motion of about 100 °, say , 30 ° backward ( to generally align with the elongation of cantilever 50 ) and 70 ° forward . such limits prevent the small arch position from becoming too big and the hollow position from becoming too small . in use , the gymnast taps and performs the small arch and hollow positions while moving the lower member 70 due to engagement of his or her pointed toes with the grasp 82 . it should be understood that the grasp can take other forms such as a stirrup , if desired , but a proper position includes pointed toes and so the illustrated arrangement is preferred . referring now to fig1 and 2a and 2 b , the engagement 20 preferably comprises a split - bearing construction that can be seated upon the high bar 22 rather than requiring the high bar to be removed from a support to have the engagement slid onto the high bar . use of a split - bearing connection permits rapid mount and dismount of the trainer 10 . optionally , the engagement 20 includes a resistance element 24 which is moveable in the direction of arrow c so as to apply a brake material 26 against the high bar 22 , such as by manipulating a handle 28 . the resistance element increases the force needed to rotate the engagement 20 around the high bar 22 in the direction of arrow a . as a result , the resistance element 24 can assist in training the gymnast by increasing the work necessary to achieve a giant maneuver during training while still requiring wrist shifting motions to complete the maneuver . optionally , the amount of resistance or drag can be adjustable from none to a range of drag settings . to provide for a safe dismount from and mount onto the trainer 10 , the lower member 70 can be temporarily engaged to a high bar support via a hinged support 100 ( see fig1 ). the support can be connected to the lower member 70 by a hinge 102 and have an opposing end with a grip 104 suitable for engaging or abutting the high bar support . a clip 106 enables the support 100 to be stowed . although preferred embodiments of the invention have been disclosed for illustrative purposes , those skilled in the art will appreciate that many additions , modifications and substitutions are possible , without departing from the scope and spirit of the invention as defined by the accompanying claims .
a trainer for tap swing and giant swing training on a high bar comprises an engagement rotatably coupled to the high bar , a cantilever affixed to the engagement , an upper support member joined at an obtuse angle to the cantilever , a lower support member pivotally coupled to the upper support member , a foot grasp joined to the lower support member at a location remote from the pivotal coupling to the upper support member , and a safety harness coupled to at least one of the upper support member and the lower support member proximate to the pivotal coupling .