Bellows

Crossing apparatus for use with a bellows acting as a crossing protection apparatus between two vehicles connected to one another in an articulated manner, wherein the bellows has side walls consisting of material strips, two of which are connected to one another at longitudinal edges belonging to each other by a connecting means, said connecting means comprising a rail clamping profile, said crossing apparatus further comprising turning platform means connected between said vehicles, apron means which bridges a gap between each of the side walls and said turning platform, each apron means comprising material strips, two each of which are connected to one another at the longitudinal edges belonging to each other in the area of said rail profiles, said side walls and said apron means having mutually corresponding folds, the profiles of the apron means having upper ends and lower ends connected to the clamping profiles of the corresponding side wall, and intermediate portions between said upper and lower ends in spaced relationship to said side walls for covering said gap, each said apron means comprising a plurality of straight extruded profiles extending parallel to a corresponding side wall of said bellows, a plurality of arc-shaped extruded profiles associated with the said extruded profiles at the upper connection points and a material web, said web being associated with the arc-shaped extruded profiles, each straight extruded profile having first and second side flanges defining a groove therebetween for receiving an inner edge profile of the corresponding side wall of the bellows, the gap to be bridged extending into the area defined by the straight extruded profile and by the section of each arc-shaped extruded profile that is farthest away from the side wall.