CH659105A5 - WINDOWS WITH WINDOW FRAME. - Google Patents

Description

The invention relates to a window wall made of concrete with a window frame for basement rooms, the walls being designed like a frame.

DE-OS 26 57 470 describes a window dress with a window, which has a design according to the preamble of the claim. Different window frames can be inserted into the window walls. Such window walls bring a significant relief and simplification in the formation of window openings for subordinate rooms such as garages, sheds, storage rooms, basements or the like. The window wall forms the formwork, so that no special additional measures are necessary. After stripping, the window opening is fully formed and does not need to be plastered. Only the window or window frame has to be used. Window walls of this type can be used both in conventional masonry, for example made of bricks, and in bulk construction.

The disadvantage, however, is that the window walls made of concrete form a thermal bridge. Due to the fact that the window wall is manufactured as a finished part, air pockets are largely avoided and the thermal conductivity is accordingly relatively high.

In DE-OS 28 53 968 a window garb is proposed which can also be used as lost formwork. This window wall is made of plastic and is designed in a special way. The thermal conductivity of plastic is significantly lower than that of concrete, especially if it has been particularly compacted by the use of vibration devices.

The disadvantage of such a garment, however, is that the production is relatively complex, it being noted that certain wall thicknesses cannot be undercut due to the risk of damage, and that special measures must also be taken to anchor the plastic in the surrounding masonry.

It is therefore an object of the invention to further improve a window wall made of concrete with a window of the type described in the introduction in such a way that the heat transfer in the wall is substantially reduced while maintaining the typical advantages of a window wall made of concrete. To solve this problem, it is proposed that the garments consist of an outer frame and an inner frame, which delimit a gap with one another, in which heat insulating material is arranged, that pins of stainless steel are provided for the mechanical connection of the two frames, the ends of which are each in one of the Engage the frame, and that the thermal insulation material on the inside is covered by the window frame.

The invention provides a surprisingly simple solution. The wall can still be manufactured as a precast concrete element. There are therefore no problems when installing on site. No rework is necessary after stripping. However, the thermal insulation material in the gap between the two frames prevents heat transfer from the outer frame to the inner frame.

The steel pins made of stainless steel ensure a secure mechanical connection between the two frames. The use of stainless steel has the advantage that there are no corrosion problems, and there is also the further advantage that stainless steel has poorer heat conduction than normal structural steel. The unavoidable heat transfer in the steel pins therefore remains comparatively low.

An essential element of the invention is that the window frame covers the gap on the inside. Since the window frame is usually made of wood or plastic, there is no additional thermal bridge in the window frame. Special measures that would be necessary to cover the gap on the inside are also avoided. If other materials are used for the window frame, this is also possible without impairing the advantages of the invention.

In general, it is advisable to connect two steel pins to a hairpin-like clamp, as is known in the construction industry as a composite needle. In the manufacture of the garment, these composite needles can simply be inserted after application of the thermal insulation material, so that a secure connection between the two frames is obtained.

It is advisable if a stop for the window is provided at the gap on one of the frames.

In the special embodiment of the invention, the window frame is made in one piece with the garments, the window frame then still contributing to a certain extent to the mechanical connection of the two frames.

It is also expedient if both frames delimit a groove which surrounds the walls and which is filled with thermal insulation material.

In general, it is advisable to use rigid polystyrene foam in the invention, without the invention being restricted to this heat insulating material.

In the drawing, an embodiment of the invention is shown schematically.

The window panel 1 is shown in a horizontal section. The robe consists of two frames 2 and 3, frame 2 forming the outer frame and frame 3 the inner frame. Each frame has reinforcements for itself, the reinforcements being designed as wire mesh in the exemplary embodiment shown. The reinforcement in frame 2 is designated 10 that in frame 3 with 9.

The gap 4 is located between the frames 2 and 3.

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which is filled by the heat insulating material 13. Polystyrene rigid foam is preferably used here.

The pins 5 serve to mechanically connect the two frames 2 and 3. These pins are made of V4A material, for example a thickness of 2.5 to 3 mm. These pins are anchored both in frame 2 and in frame 3 and penetrate the insulating material 13.

With 11 a hairpin-shaped clip is shown, which connects two pins 5 to each other. During manufacture, the frame 3 is generally molded first, then the insulating material 13 and then the clips 11 are introduced before the frame 2 is molded in the shape in question.

With about eight hairpin-like clips 11, a good connection between the two frames 2 and 3 can be obtained, which connection is also sufficient in the installed state of the garment, for example, to hang a basement light well on the frame 2.

On the outside of the frames 2 and 3, a groove 8 is provided which is filled with insulating material 12, for example rigid polystyrene foam. It is clear that in this way the heat transfer from frame 2 to frame 3 is greatly reduced. In particular, the heat transfer through the pins 5 is only increased insignificantly, since their

Overall cross-section un whose thermal conductivity is comparatively low.

It is clear that instead of the specified V4A material, other materials can in principle also be used for the invention, although all other known materials generally give poorer results, be it that lower strength values, higher thermal conductors or higher material expenditures have to be accepted -th.

io A stop 7 is formed on the frame 2, which results in a secure connection to the window frame 6. The window frame 6 is made of wood or plastic, for example.

The use of other materials is not excluded, but here too a good insulation effect must be ensured. The frame 6 seals the gap 4 from the inside.

In the exemplary embodiment shown, the frame 6 was installed in the 20 walls simultaneously with the manufacture of the garment. However, the arrangement can also be such that the frame is used subsequently, as is known from other walls. In this case, the stops etc. must be arranged accordingly.

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1 sheet of drawings

Claims (5)

659 105 1. Concrete window walls with a window frame for basement rooms, the walls being designed like a frame, characterized in that the walls (1) consist of an outer and an inner frame (2, 3), which together delimit a gap (4) , is arranged in the heat insulation material, that for the mechanical connection of the two frames (2, 3) pins (5) made of stainless steel are provided, the ends of which each engage in one of the frames, and that the heat insulation material on the inside of the window frame (6) is covered. 2. Window walls with window frames according to claim 1, characterized in that two beam pins (5) are connected to a hairpin-like clip. 2nd PATENT CLAIMS 3. Window walls with window frame according to claim 1 or 2, characterized in that a stop (7) for the window frame (6) is provided at the gap (4) on one of the frames (2, 3). 4. Window walls with window frames according to claim 1 or 2, characterized in that the window frame (6) is made in one piece with the walls (1). 5. Window walls with window frames according to one of claims 1 to 4, characterized in that both frames (2, 3) delimit a groove (8) surrounding the walls (1), which is filled with heat insulating material.