Patent ID: 6360673
Filing Date: 2002-03-26
Classification: B65G

Abstract:
A chassis for a supporting a trolley car along a monorail having a central vertical axis comprising:a rigid frame having a longitudinal axis, the frame having a plurality of apertures arranged around an axis perpendicular to the longitudinal axis of the mainframe; at least one rotatable yoke coupled to the frame for rotational movement around the perpendicular axis as the frame travels along an arcuate portion of a longitudinally extending rail, the yoke having opposing arms extending from the frame; at least one guide wheel mounted on each of the opposing arms, the rail guide wheels guiding the chassis during movement along the rail; at least one load bearing wheel coupled to the frame for rotation along a top surface of the monorail, the load bearing wheel supporting the chassis during movement along the monorail; a plurality of couplers extending through the apertures, the couplers connecting the yoke to the frame and being moveable in the apertures around the perpendicular axis to allow the yoke to rotate a limited distance in a horizontal plane; and at least one stabilizing outrigger wheel coupled to the frame, the stabilizing outrigger wheel stabilizing the mainframe during movement along the rail.