Abstract: An edge protecting frame for plate-shaped structural elements comprises a plurality of edge protecting strips abutting against one another in abutment regions, a plurality of corner connectors each connecting two neighboring ones of the edge protecting strips in the abutment regions, a plurality of harpoon webs engageable in the grooves of a structural part, and a plurality of insertion profile portions each having one of the harpoon webs and form-lockingly connected with a respective one of the edge protecting strips.

Abstract: An impact-impeding structure includes a pane which extends along a plane and has a front and a rear side, and an impact-impeding frame for the pane. The frame may include an outer frame member and an inner frame member received in the outer frame member, the frame members being provided at least at one of the front and rear sides of the pane with impact-impeding elements, and defining with one another a labyrinthine gap situated at a region of the impact-impeding elements and including a plurality of steps extending at least substantially parallel to the plane. The parts of the gap which interconnect the steps extend at an angle deviating from the normal to the plane of the pane and may have different widths which may decrease from the exterior to the interior of the frame arrangement.

Abstract: A T-connection between two profiles, particularly a cross-bar profile and a post profile of a facade each having an inner chamber, comprises a U-shaped connector located in the inner chamber of one of the profiles, the connector having an end plate provided with a guiding opening and having two opposite edges and two plateshaped legs extending from the opposite edge of the end plate near inner surfaces of the one profile, and a flange bolt guided in the guiding opening of the connector in a non-rotatable manner and extending into the inner chamber of another one of the profiles through an opening in a wall of the other profile so as to be fixed relative to the latter. The flange pin has a portion extending outwardly beyond the end plate and provided with at least one arresting opening. The connector has a toggle lever-like bridge web extending between the plate-shaped legs and provided with a threaded opening.

Abstract: An impact-impeding structure includes a pane which extends along a plane and has a front and a rear side, and an impact-impeding frame for the pane. The frame may include an outer frame member and an inner frame member received in the outer frame member, the frame members being provided at least at one of the front and rear sides of the pane with impact-impeding elements, and defining with one another a labyrinthine gap situated at a region of the impact-impeding elements and including a plurality of steps extending at least substantially parallel to the plane. The parts of the gap which interconnect the steps extend at an angle deviating from the normal to the plane of the pane and may have different widths which may decrease from the exterior to the interior of the frame arrangement.