Window frame corner joint - uses welding to connect angled extension on leg of one section with other section of leg surface

摘要

The assembly consists of sections (1, 2) with legs (3, 4, 6, 7,). The two sections are put together at right angles in such a way that edge (13) of leg (7) abuts the flat surface (12) of leg (6), while leg (3) of section (1) rests on top of leg (4) of section (2). Leg (6) has an extended part (11) angled inwards so that it rests against the inner surface of leg (7). Welding in points (B) where leg (3) rests on leg (4) and angled extension (11) on leg (7) provides the required rigidity of the joint.