Fire protection door in building

摘要

The frame is formed as a full encirclement type with opposite short and long parts. They have an approximately Z-shaped cross-section basic shape. Right-angled frame rail parts are connected by ribs running parallel to the depth of the door panel. The frame rail parts run parallel to the interior of the extension of the door panel in the wall direction and parallel to the interior of the door panel. The frame rail parts (5) of all four frame parts, running parallel to the interior of the door panel (3), are arranged at a distance from each other and in the direction of the door panel have angled ends (8). The frame rail parts (6) running parallel to the extension (4) and forming part of the shorter frame parts have an intended break point (10) over their length.