DE3230343A1 - Window or door lintel - Google Patents

Description

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Patent attorneys η

Park street 13
Frankfurt σ. Μ. 1

Stahlton AG, 8034 Zurich

Window or door lintel

1.7.82 42 058 a

Window or door lintel

The present invention relates to a window or door lintel, which as a prefabricated component, consisting of a composite of several material layers, is used.

The previously known 'window or door lintels,

some of which are already covered with a layer of insulating material in addition to the load-bearing material layer, are able to meet the strict requirements of the SIA standards Thermal insulation, airborne sound insulation and airtightness are not sufficient unless they are combined with other fixed or mobile elements.

The purpose of the present invention is now to form a window or door lintel which has the aforementioned Fulfills requirements and which in particular enables the construction of a hollow lintel structure for roller shutters, in which a front fall, known per se, with the new fall according to the invention as a rear fall, the hollow fall forms and thereby combines minimal dimensions with maximal insulating properties.

According to the invention, the window or door lintel is characterized in that it consists of at least three Layers, namely a layer of load-bearing material, an adjoining composite layer of heat-insulating material Material and a cover or protective layer for ■ the heat-insulating material is built up. The layer from load-bearing material is preferably made of reinforced concrete, so that the mass of this material at the same time can serve as sound insulation. The heat-insulating layer is preferably made of a rigid foam, while

rend the cover or protective layer consists of a fiber-reinforced concrete, in particular a glass fiber concrete.

This combination allows in particular the creation of a hollow lintel. It serves as a Rear fall, the hollow fall together with a front fall made up of a pre-tensioned fall board and a is formed in the composite provided panel made of fiberglass concrete.

Of course, the new window or door lintel can also be used to create a normal lintel because the requirements are met in any case.

The invention is described below with reference to two exemplary embodiments which are illustrated in the drawing are explained in more detail. It shows:

1 shows a section through a window lintel, which is designed as a hollow lintel for roller blinds, and

2 shows a section through a hollow lintel ■ for folding roller shutters or slat blinds.

In the construction according to Fig. 1, the lintel consists of the load-bearing layer 1 made of reinforced concrete, a thermally insulating layer 2 made of rigid foam and a layer 2 of the latter, which is connected therewith covering protective layer 3 made of thin glass fiber concrete.

This multi-layer structure of the rear lintel thus consists of a cover and cover in reinforced concrete, a hard foam insulation and. a top layer made of fiberglass concrete. The reinforced concrete part 1 ensures an extraordinarily good inherent rigidity and stable stops for an airtight connection of the

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Window frame 4. The reinforced concrete part 1 also has sufficient Weight to ensure effective sound insulation.

In the example shown, the rigid foam insulation 2 adjoins the reinforced concrete 1, whereby it lies in the area of the rear panel, cover and support and ensures the required thermal insulation seamlessly.

. Such elements also have a protective layer 3 made of glass fiber concrete, which provides the rigid foam insulation 2 protects during the handling of elements and during construction.

In addition, the rough surface of the glass fiber concrete layer 3 is ideal as a carrier for a Plaster layer 5.

In the example shown, the new lintel forms the rear lintel of the hollow lintel shown. The front fall is of a known element 6 from a pre-tensioned fall board 7 and a thin-walled glass fiber concrete panel 8 is formed.

This construction creates the space 9 required for the roller shutter.

Fig. 2 of the drawing shows a lintel, which also consists of the three layers, namely a load-bearing and sound-absorbing layer made of reinforced concrete 10, one that is connected to it heat-insulating layer made of rigid foam 11 and a protective layer 12 for the heat-insulating Layer. In this example there is a hollow lintel for folding shutters or venetian blinds is to be formed, that was

Element with the layers arranged in reverse order in the building structure. The load-bearing reinforced concrete layer is on the inside, while the protective layer is on the outside of the building. In the example shown, there is also a cover 13, corresponding to the front lintel 6 in the construction Fig. 1 arranged. The construction of the component is described in more detail in Swiss patent no. 601 601.

Claims (6)

Claims 1. Window or door lintel, characterized in that it consists of at least three layers, namely a layer of load-bearing material, an adjacent layer of heat-insulating material and a cover or protective layer for the heat insulating material is constructed. 2. window or door lintel according to claim 1, characterized in that: that the layer of load-bearing Material consists of reinforced concrete, the mass of which also has a sound-insulating effect. 3. window or door lintel according to claim 2, characterized in that the reinforced concrete layer as Stop for window or door frames and the like is formed. . 4. window or door lintel according to claim 1, characterized in that the heat-insulating Layer made of rigid foam. 5. window or door lintel according to claim 1, characterized in that the top or protective layer for the heat-insulating material made of fiber-reinforced material, e.g. made of glass fiber concrete. 6. Use of the window or door lintel according to claims 1-5 as a back lintel hollow lintel construction for roller shutters and venetian blinds whose front lintel consists of a pre-tensioned lintel board and one in combination with it, the panel is made of fiberglass-reinforced concrete.