Door-panel for lift door is shaped like flat box with two large main surfaces, side surfaces, top and bottom edges, intermediate and covering layers and fastening strip

摘要

The flat box-shaped door-panel (6,8) runs along a support-guide and has two large main surfaces (28,30) and side (32) surfaces, and top and bottom edges. The door panel is made of multiply composite material (20) consisting of light metal stuck together and which has a corrugated intermediate layer (26) between two covering layers (22,24). the composite material forms at least one side edge (32,34) the other edge of which is formed by a U-shaped profiled bar (36).. A fastening strip forms the top and bottom edge.