Tensioning arrangement for fire-barrier flap has housing containing swivel mounted flap panel, two tensioning frame elements joined by connecting elements and corner straps

摘要

The rectangular-sectioned fire-barrier flap has a duct-shaped housing (100) containing a swivel-mounted flap-panel for absorbing expansion forces occurring in the flap's operating part (110). The tensioning piece has two tensioning frame elements (112,114) outside the housing on opposite-facing sides. The tensioning frame elements are joined by connecting elements and has rectangular cavities matching corner straps (15) on the housing.