Patent ID: 7438668

Claim:
A hurdle comprising: (a) a base comprising two parallel horizontal legs, each leg having a leading end and a trailing end; (b) two uprights, each upright having an inward surface and extending upwardly from the trailing end of a leg and having a plurality of holes spaced apart vertically along its inward surface; (c) two telescoping tubes, each tube having a top end and being adapted to fit over an upright, each tube having an inward surface and a contiguous trigger tube along its inward surface, each trigger tube having an inward surface and having a hole along its inward surface; (d) a gateboard connecting the top ends of the telescoping tubes; and (e) a trigger mechanism inside each trigger tube, each trigger mechanism comprising a pivoting vertical rod with an inwardly directed perpendicular upper end that extends out of the hole in the trigger tube to form a button and an outwardly directed perpendicular pin at its lower end adapted to engage one of the holes in the upright, the vertical rod having a horizontal pivot bar attached midway along its outward surface, the lower end of the vertical rod being connected to a spring compressed within the trigger tube that forces the pin outwardly to engage one of the holes in the upright and that is further compressed when the button is pushed to disengage the pin from the hole; such that the height of the gateboard is adjusted by simultaneously depressing the buttons to pivot the vertical rods and thereby disengage the pins from the holes, moving the gateboard to a desired height, and releasing the buttons so the pins engage the holes.