CH691617A5

CH691617A5 - Sash- or frame for insulating windows or doors insulation and to processes for the preparation thereof.

Info

Publication number: CH691617A5
Application number: CH02673/96A
Authority: CH
Inventors: Roland Doerig
Original assignee: Dfs Technology & Service Ag
Priority date: 1996-10-30
Filing date: 1996-10-30
Publication date: 2001-08-31
Also published as: ATA160797A; AT407893B; DE19741787A1

Description

The present invention relates to a sash or window frame for insulation windows or doors. In addition, the invention relates to a method for producing a corresponding sash or window frame, which has at least one profile part made of plastic.

Various types of heat-insulating windows or corresponding glazed doors are known. When designing them, the main focus is mostly on containing heat loss through the glazing. So the insulation glazing was continuously developed. The thermal permeability defined as k-value, i.e. In the present case, the heat that escapes through the window from a heated room could be reduced considerably. If one assumed a k-value of approximately 5.8 W / m <2> K for single glazing, today standard insulating glazing achieves values of around 1.5 W / m <2> K.

Often, however, these excellent, industrially manufactured glazings are installed by the window manufacturer in window constructions that cannot keep up with these good values with regard to the thermal insulation properties of the window sash and window frame. In the past, glazing was the weak point in terms of heat technology, but nowadays it is often the sash and window frame profiles. A window sash or window frame profile made of metal, plastic or even a metal / wood combination cannot inherently achieve the required k value. Additional measures are required in the profile, e.g. foaming a thermal insulation layer into any profile cavities. In many cases, however, these measures are also unsatisfactory.

Depending on the profile construction, cold bridges remain, even with optimal foaming of the profile cavities, which impair the k value. In addition, optimal and long-lasting foaming cannot always be guaranteed. In addition, this foaming is associated with some effort in window production.

The object of the invention is therefore to create a sash or window frame which ensures a good k value with a comparatively low production cost. In addition, a method is to be specified for the production of a corresponding sash or window frame made of plastic.

The sash or window frame according to the invention corresponds to the characterizing features of claim 1. Further advantageous developments are evident from the features of the dependent claims. The manufacturing method according to the invention is specified in claim 8.

Two exemplary embodiments of the subject matter of the invention are described in more detail below with reference to the drawing.
Fig. 1 shows the window sash profile of a wood / metal window;
Fig. 2 shows the window sash profile of a plastic and / or metal window.

The drawing shows an approximate section of the window sash profile 1 and 2 on the original scale. The glazing 3 and 4 consists, as usual, of insulating glass. On the left is the outside of the building, on the right is the inside of the building. In both cases, the window sash profile 1 and 2 is composed of different profile parts 5, 6, 7 and 8, 9. It should be expressly emphasized that the two window sash profiles 1 and 2 are only given as an example and can also have a different shape. It could also be a glazed door. The respective wing profile 1 and 2 is also representative of a corresponding frame profile.

In the first example according to FIG. 1, the window sash profile 1 is essentially composed of a sash core 6 and an inner profile part 5 which is intended to be located on the inside and which each consist of wood. To complete the window sash profile 1, a weather-resistant outer profile part 7 made of metal is placed on the outside. The outer profile part 7 could of course also be made of wood. The second example according to FIG. 2 relates to a window sash profile 2, which consists of plastic and / or metal and is assembled from two profile parts 8 and 9. The main profile part 8 corresponds to the wing core 6 and the inner profile part 5 according to FIG. 1. The outer profile part 9 is attached to the main profile part 8 and at the same time serves to hold the glazing 4 inserted from the outside.

These two very different window sash profiles 1 and 2 are now to be improved in terms of insulation technology by reducing the heat permeability. In particular, the heat loss from the heated interior of the building to the outside should be reduced by the area of the window sash profile 1 or 2 and of course also by the area of the frame profile, not shown. In both cases, this is not done by foaming, but by arranging a heat reflection layer or a reflection layer 10 or 11. In particular, parts of the window sash profile construction are provided with the said heat reflection layer 10 or 11.

In order not to impair the appearance and the surface quality of the profile parts, those surfaces are provided with a layer or with a layer of reflective material that faces the interior, i.e. are aligned with the core of the window sash profile, but in any case it is ensured that heat is reflected in the direction of the interior of the building. In the example according to FIG. 1, the surface of the inner profile part 5 facing the wing core 6 is coated, including the surface of the glass and the wing rebate 12 or 13. In the other example according to FIG. 2, however, the surface facing the main profile part 8 is coated Surface of the outer profile part 9 coated or provided with a reflective material layer. The heat reflection takes place in particular through metal.

It can be achieved, for example, by applying a lacquer mixed with metal dust or with metal flakes.

It is also possible to provide the surfaces in question with metal foils or sheets. If the window sash profile or window frame profile construction consists of metal or only has profile parts made of metal, it is also conceivable to process one or more of the already existing metal surfaces by appropriate processing, i.a. by polishing to make it reflective in order to achieve the desired heat reflection. In this case, an additional coating is not necessary. 2 shows how, for example in the case of a plastic profile designed as a hollow profile, a reinforcing profile part 14 made of metal is inserted, the surfaces 15 of which can be made reflective. In this case, the reinforcement profile part 14 fulfills two useful functions.

In addition, a plastic profile part can already be made heat-reflecting during its manufacture or can be formed with a heat-reflecting surface. The most advantageous way to do this is to extrude the plastic profile part by adding metal particles such as dust or flakes to or immediately onto the plastic, which is still soft at the moment, or by applying a substance mixed with it. The application can be done, for example, by spraying or vapor deposition. The use of a metal oxide is also particularly advantageous. This creates a good and permanent connection of the heat-reflecting surface or the metal particles with the plastic profile part, so that the further connection of this profile part with a second profile part does not cause any problems.

As can be seen particularly well from the simple shape of the wooden profile parts in FIG. 1, the insertion of the heat reflection layer or reflection layer 10 results in an effective separation between the inside of the building and the outside area. The undesired formation of a cold bridge is avoided in any case, since the heat reflection layer or reflection layer 10 is arranged essentially vertically. Due to the heat reflection, the heat radiation, in particular long waves, which would escape from the inside of the building, is reflected back into the inside of the building. The heat loss in the area of the window sash profile or window frame profile construction can thereby be considerably reduced. Even in the present example of a wood or wood / metal window, an improvement in the thermal insulation can be achieved.

Excellent k values can be achieved. It should also be noted that it would hardly be possible to improve thermal insulation by foaming in a wooden window. Since the heat reflective layer or reflective layer 10 is concealed, the appearance of the wooden window is nevertheless not impaired. At the same time, there are no major difficulties in the production of this window. The individual parts can be glued together, for example by means of dielectric high-frequency technology. This construction also fully takes into account the high demands on static stability, especially with larger wooden windows or wooden doors.

On the contrary, you can also achieve a static improvement in a wooden window if the heat-reflective layer is made of metal so that it also serves as reinforcement. Overall, this construction therefore offers a high-quality product in every respect.

Claims

1. sash or frame for insulation windows or doors, characterized in that the window or door sash profile and / or frame profile construction (1; 2) from at least two profile parts (5, 6, 7; 8 , 9), of which at least one profile part (5; 9) has at least one surface (10; 11) which is heat-reflecting, the heat-reflecting surface (10; 11) being arranged in such a way that heat reflection in the direction inside the building.

2. sash or window frame according to claim 1, characterized in that the heat-reflecting surface (10; 11) is arranged so that it is not visible from the inside of the building at least when the window or door is closed.

3rd

Sash or window frame according to claim 2, characterized in that the heat-reflecting surface (10; 11) is arranged on the side of a profile part (5; 9) lying to a second profile part (6; 8).

4. sash or window frame according to one of claims 1-3, characterized in that the region of the glass rebate (12) and / or sash (13) of the window or door sash profile (1) is heat-reflective.

5. sash or window frame according to one of claims 1-4, characterized in that the window or door sash profile and / or frame profile construction (2) has at least one profile part (8) which is designed as a hollow profile, in which hollow profile is inserted a profile part (14) made of metal, which has at least one heat-reflecting surface (15).

6.

Sash or frame according to one of claims 1-5, characterized in that a layer made of a reflective material, for example a metal foil or a sheet metal, is applied to the heat-reflecting surface (10; 11).

7. casement or frame according to one of claims 1-5, characterized in that a coating is applied to the heat-reflecting surface (10; 11), which is mixed with metal dust or metal flakes.

8th.

A method of manufacturing a sash or window frame according to claim 1, which has at least one profile part made of plastic, characterized in that this plastic profile part during extrusion, i.e. immediately after the shaping, at least partially heat reflecting, by adding metal particles to or onto the still soft plastic or by applying a substance mixed with it.

9. The method according to claim 8, characterized in that a with metal particles, such as. Dust or flakes, staggered paint is sprayed on.

10. The method according to claim 8, characterized in that a metal oxide is evaporated.