초록 ▼

The steel coffer is provided in the form of a box-like coffer element (1) of great load-bearing capacity, having a wall (2), flat per se, and a circumferential, multiply-folded edge section (3), which has stiffening sections (4) fastened underneath the coffer wall (2), has perforations (5) and conne

The steel coffer is provided in the form of a box-like coffer element (1) of great load-bearing capacity, having a wall (2), flat per se, and a circumferential, multiply-folded edge section (3), which has stiffening sections (4) fastened underneath the coffer wall (2), has perforations (5) and connecting holes (6) in the circumferential edge section (3) and has, in the corners, notches (7) for folding the edge sections (3) and for insertion of the supports (8).

대표청구항 ▼

A steel coffer for ceiling and/or wall structures of buildings, housing units, interior and exterior structures of ships, said steel coffer comprising: a box-shaped coffer element (1); said box-shaped coffer element having a flat wall a plurality of edge sections (3) integrally engaged to a peripher

A steel coffer for ceiling and/or wall structures of buildings, housing units, interior and exterior structures of ships, said steel coffer comprising: a box-shaped coffer element (1); said box-shaped coffer element having a flat wall a plurality of edge sections (3) integrally engaged to a periphery of said flat wall (2); said coffer element (1) having a basically rectangular shape and having one each of four sides of said rectangular shape one of said plurality of edge sections (3) folded down from said flat wall (2); wherein each of said plurality of edge sections (3) has an L-shaped cross-section; said each of said plurality of edge sections (3) having, a leg (3a) engaged perpendicularly in relation to said flat wall (2), said leg (3a) being longer than said first adjoining folded leg; and a first adjoining folded leg (3b) engaged to said leg extending parallel to said flat wall (2), and a second adjoining folded leg (3c) engaged to said first adjoining folded leg (3b) extending parallel to said leg (3a) and toward said flat wall (2); said first adjoining folded leg (3b) being longer than said second adjoining folded leg (3c), notch means (7) located at corners of said coffer element (1) for folding of said plurality of edge sections (3) down from said flat wall (2) and engagement of vertical supports (8); stiffening sections (4) fastening to an underside of said flat wall (2); and said plurality of edge sections having perforations (5) and connecting holes (6).