E - Fixed Constructions – 06 – B
Patent
E - Fixed Constructions
06
B
26/184, 108/68
E06B 1/12 (2006.01) E06B 1/32 (2006.01) E06B 3/267 (2006.01) E06B 3/263 (2006.01)
Patent
CA 2004357
Abstract A frame construction for a door opening comprises an elongated aluminum extrusion which is adapted to be secured along a length of a wall defining the door opening. The aluminum extrusion includes first and second elongated spaced apart members each having an L-shaped profile and having first and second longitudinal free edges which form a channel configuration at least partly open-ended towards the door opening between the first free edges. The first sidewalls of the first and second L-shaped members are parallel to the plane of the door opening whereas the second sidewalls thereof extend towards each other at right angles from their respective first sidewalls without joining one another. An insulating vinyl strip extends between the first free edges in order to close the open end of the channel configuration. The cavity thus defined is filled with an insulating structural filler material generally made of a rigid polyurethane foam. A thermal barrier is therefore provided in the frame construction as the first and second L-shaped members of the aluminum extrusion are separated by the insulating strip and by the insulating filler material, the latter ensuring a rigidity to the aluminum extrusion. The method for producing this frame construction initially has the second sidewalls of both L-shaped parts of the channel integrally joining one another. Once the cavity formed by the U-shaped channel closed by the insulating strip has been injected with the structural filler material, an elongated strip is removed from the bottom wall of the aluminum U-shaped channel with the integrity of the frame construction being maintained by the rigidified insulating structural filler material.
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