Patent ID: 6058849
Filing Date: 2000-05-09
Classification: B66C

Abstract:
A traveling mechanism for a ling device movable on a downward-opening hollow rail of an overhead track, said downward-opening hollow rails having substantially horizontal running surfaces extending along a longitudinal direction of said rail and sloped toward one another, inner side surfaces extending upward from sides of said running surfaces, and a horizontal outer running surface on a bottom of said substantially horizontal running surface of said rail, said traveling mechanism comprising:a connection element for attaching a load;a running wheel carrier swivelably connected to said connection element via a universal joint;at least two running wheel axles rigidly connected to said running wheel carrier;at least two running wheels rotatably connected to said at least two running wheel axles on both sides of said running wheel carrier for supporting said connection element on said horizontal running surfaces;a lower portion of said connection element projecting downwardly out of said rail when said traveling mechanism is mounted in said rail;at least one running roller rotatably connected to said lower portion of said connection element for rolling against said horizontal outer running surface of said rail; andat least one support roller being rotatably mounted about a vertical axis on said connection element for rotating against at least one of said inner side surfaces of said rail.