Ventilation-conduit mounting in rail coach roof - has supporting flange of profiled beam bearing against conduit section edges on inside and suspension flanges for beam bearing against outside

摘要

The supporting flange (5S) of each beam (5) bears against the edge (2R) of the tunnel-section flange. Outside the conduit (1), the beam is joined to suspension flanges (6) bearing against the outside of the section edges. Spring components (9) needing no tools for installation clamp the tunnel-section edges to the beams. Each tunnel-section can have a metal inner casing (2M), on which is an outer layer (21) of insulating material. The casing is bent outwards at the bottom edges, and then upwards to form edges over which the spring components fit. ADVANTAGE - Easy and safe installation.