Patent ID: 6082499
Filing Date: 2000-07-04
Classification: B66B,E05D,E05F,E05Y,Y10T

Abstract:
A door assembly for an elevator cab opening wherein the elevator cab has a non-linear door pathway, the door assembly comprising:an elongate upper guide track including at least two generally planar upper support surfaces, wherein the planes of the upper support surfaces are each at a slight angle from the horizontal plane and at least two generally planar lower guide surfaces which are angled slightly from the vertical plane so that the upper guide track is generally diamond-shaped in cross-section; anda plurality of door sections, each of the door sections including,at least one carriage assembly including a carriage frame and at least two wheels each supported by, and in rolling contact with, one of the at least two support surfaces on the guide track, the carriage frame having a generally U-shaped base and a pair of wheel support arms extending upward from the base in a generally flared orientation, wherein each of the wheel support arms provides a mounting surface for at least one of the wheels, which mounting surface is generally orthogonal to the plane of the top support surfaces of the upper guide track, and wherein the wheel support arms are generally parallel, respectively, to each of the lower bearing surfaces on the upper guide track,a hinge pin supported by said carriage, anda door panel including a carriage connector having an aperture for receiving the hinge pin for pivotal connection of the door panel to the carriage assembly,whereby the door panel and the carriage assembly pivot about the same vertical axis defined by the longitudinal axis of the hinge pin when the door section is moved through the non-linear pathway.