Sliding door with double pillars - has stop bolts thrust between pillars and abutments linked to frame stiffener

摘要

Filler pieces of profile steel are held in a frame of hollow metal profile units, for a large sliding door supported on the ground via rollers and rails, and extending through the gap between two double pillars, when closed. The frame has a closed-sectioned strengthening profile parallel to top and bottom bars. The hollow space in this is penetrated by a flexible stressing member, of highly rigid material, with ends connected to door fixed abutments protruding laterally beyond the pillars. Stop bolts are thrust into position between abutments and pillars.