Patent ID: 6848514
Filing Date: 2005-02-01
Classification: E01B,E02F

Abstract:
1. An arrangement of an excavating chain for conveying ballast of a track bed extending in a first plane, the excavating chain being comprised of a succession of linked chain links and being driven in a second plane inclined with respect to the first plane in an operating stage, and a guide wherein the excavating chain is guided, the guide comprising a transverse guide section positioned in a line of intersection of the first and second planes, in the operating stage, and longitudinal guide sections, the longitudinal guide sections being connected to ends of the transverse guide section by joints having a vertical axis and the guide sections defining a guide channel for the excavating chain, the guide channel being defined by a lower glide track and an upper glide track extending parallel to the second plane and an end glide track extending perpendicularly to the second plane, the end glide track connecting the lower and upper glide tracks, wherein the joints are arranged below the second plane extending centrally through the end glide track and the excavating chain is deflected solely from the transverse to the longitudinal guide sections by frictional contact with the end glide track adjacent the joints.