WINDOW, DOOR OR SIMILAR ENCLOSING FRAME STRUCTURE Russian patent published in 2008 - IPC E06B3/22 

FIELD: construction.

SUBSTANCE: window, door or similar enclosing frame structure includes at least one multichamber plastic, mostly polyvinyl chloride part. The structure includes at least one augmenter located in one of the chambers of the element. The augmenter is made of a composite material based on artificial reinforcing fibre and a plastic binder as a pultrusion profile. The profile consists of at least one bearing part with a high-impact insert, if required, and at least one mount portion with at least one projection if required and a coating surface of a system of intertwining and/or crossing threads. The shape of a pultrusion profile is limited with at least one shaping surface closed crosswise that forms a profile with an open, closed or combined cross section. The structure of a composite material of the profile is made based on reinforcing fibre from 5 to 30 mcm in diameter and its volume content in the composite material is from 50 to 92%. In this case, the structure is selected with regard to a ratio of rigidity and strength of all the bearing parts of the profile to the similar parameters of all its mount portions. The ratio is from 1:1 to 30:1. The structure is selected also with regard to a ratio of longitudinal elastic moduli of the plastic element material and the composite material of the profile. The ratio is from 1:50 to 1:3. The structure is selected with regard to a ratio of temperature conductivity coefficients of the specified materials to each other. The ratio is from 1:0.5 to 1:10. At least one bearing part of the profile is equipped with at least one projection and a coating surface of a system of intertwining and/or crossing threads. The longitudinal coating surface length of at least one mount and/or at least one bearing part of the profile is from 0.1 to 3.0 length of the profile perimeter.

EFFECT: improved functional reliability.

39 cl, 2 dwg