US Patent 9365150 Loading rail and sliding block for a loading rail

A loading rail has a cross-sectional profile which is uniform over at least part of the length of said loading rail, has, on an upper side, a longitudinal groove for receiving at least one sliding block, the longitudinal groove being constricted in an upper region by at least one web, which is attached to a side wall of the longitudinal groove, to form a longitudinal slot, and the web bearing at least one downwardly projecting projection, wherein the projection forms an undercut on a side facing away from the longitudinal slot, as seen from below. The disclosure also relates to a sliding block for a loading rail.