Tensioning connection for flexible tensioning of mine construction support frame

摘要

The support faces of the connection are formed in a bracket (3) by the external sides of recesses (9) and are located approximately at the height of the upper edges of the flanges (4) of profiled segments. The heads (12) of screws (8) are formed as hammer heads and by their two sides lie upon the upper edge of the respective flange of the pit-side profiled section (2). The recesses extend longitudinally in the bracket, and extend above and laterally outwards close to the flange of the channel section.