Static structures (e.g. – buildings) – In situ attached-type channel or trim strip – Portal or closure trim
Patent
1997-03-18
1998-03-17
Friedman, Carl D.
Static structures (e.g., buildings)
In situ attached-type channel or trim strip
Portal or closure trim
522041, 522045, 526566, 527303, 527305, 527306, 527341, 49DIG1, E04B 194, E06B 112, E06B 3263
Patent
active
057273561
DESCRIPTION:
BRIEF SUMMARY
The invention relates to a composite section for frames of windows, doors, facade elements and building components.
A composite section of this kind is known from DE 31 02 616 A1.
Such a composite section is based on the following technical background: It can happen that the plastic material forming the insulating web becomes brittle or cracks, for example, due to aging or holding elements being pressed against it in a point-shaped or line-shaped manner, and the composite section falls apart on account of inability of the insulating web to hold its metal section parts together. This can prove highly dangerous. Also, as a rule, the plastic material forming the insulating web is not fireproof or heat-resistant, and so it chars, for example, in the case of fire or when welding the metal section parts. This can also destroy the cohesion of the two metal section parts. Therefore, for example, an outer metal section part which is no longer joined to the inner one can, in the case of fire, fall from the wall of a building and cause serious injury to persons and damage to property on the ground. The embedding of incombustible, but loose reinforcement fibers, for example, glass or carbon fibers, which mainly extend in one direction only and are not connected to one another, does not change this in any way, as these do not contribute to providing firm support of the one metal section part on the other when the plastic material forming the insulating web has lost its cohesion.
Therefore, provision is made in the above-mentioned publication DE 31 02 616 A1 for the plastic material forming the insulating web to be combined with a composite fiber skeleton consisting of heat-resistant fibers and for the composite fiber skeleton to be joined to the metal section parts in such a way that cohesion of the metal section parts is ensured, even when the plastic material of the insulating web degenerates, and, therefore, in particular, in the case of fire.
In this known composite section, the composite fiber skeleton consists of glass or carbon fibers which are wound in a simple way around anchoring elements provided at both ends of the insulating web, and these windings are embedded in the plastic material of the insulating web or can lie on the outer sides thereof. The manufacturing of such windings is not easy from the point of view of manufacture engineering. Furthermore, the individual windings do not hold together, which may impair the firmness of the insulating web and hence of the composite section if the plastic material forming the insulating web is damaged.
The object of the invention is to so design a generic composite section that it is simpler to manufacture and the firmness of the insulating web and hence of the composite section, in particular, also in the case of fire, is generally improved.
The object is accomplished in a generic composite section by the features contained in the characterizing clause of patent claim 1.
Owing to the design as a band, the composite fiber skeleton can be prefabricated in a simple way, and the fibers in the band can be held together by weaving, braiding, knitting or the like. The thickened edge sections of the band provide reliable anchoring at the metal section parts. Finally, the band as such provides the insulating web with better inner cohesion than loose fiber windings.
The following description of preferred embodiments of the invention serves in conjunction with the appended drawings to explain the invention in further detail. The drawings show:
FIG. 1 schematically a perspective view of a composite section for windows, doors, facade elements and the like;
FIG. 2 a broken-off part sectional view of the composite section of FIG. 1 in the area of the insulating webs thereof; and
FIG. 3 a composite fiber material in the form of a woven band which can be combined as skeleton with an insulating web of the composite section according to FIG. 1.
FIG. 1 shows a composite section 1 suitable, for example, for the manufacture of windows, doors or facade elements, with an inner metal se
REFERENCES:
patent: 3250663 (1966-05-01), Sharp et al.
patent: 4492063 (1985-01-01), Schock et al.
patent: 4740405 (1988-04-01), Tanaka et al.
patent: 5022205 (1991-06-01), Ford
Eisenhardt Dieter
Ensinger Wilfried
Callo Laura A.
Ensinger GmbH & Co.
Friedman Carl D.
Lipsitz Barry R.
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