is an enlarged perspective view of the front facing side of spacing device 36 in a non blocking position when it is confirmed that no body extremities are located between the first and second chute sections 18 20 the blocking member 54 is pivoted away from the arcuate wall 38 of the first chute section 18 about the nut and bolt connection 96 as the blocking member 54 is pivoted away from the first chute section 18 the elongated coil spring 58 is stressed with the spacing device 36 in the non blocking position the second chute section 20 completes the gravitational rotation about the hinge 50 and the arcuate edge 48 of the second chute section 20 engages the annular flange 42 of the first chute section 18 when the two section chute system 16 is in the fully unfolded position the protrusion 86 of the first plate 68 rests against the first end 28 of the second chute section 20 when the second chute section 20 is rotated back about hinge 50 to the folded position blocking member 54 is urged back to the blocking position by elongated coil spring 58 the pivotal connection 82 of the blocking member 54 to the annular flange 42 offers an easy and.