WO1998017887A1 - Window system - Google Patents

Abstract

The window system comprises a window frame (1), one or more panes (4), and a pane frame (2). The window frame (1) can be installed in a recess on the inner edge of the embrasure (9) only from the inner side of the window. When installed, it fits flush with the embrasure (9) towards the center of the window, and thus cannot be seen from the outer side of the window. On the window side, the window frame (1) is fitted with a sealing section (3), in which a rubber lip (7) in the planes of the embrasure (9) surrounds this, so that the pane (4) rests against this rubber lip (7) all around when the window is closed.

Description

 Window system

The present invention relates to a window system which includes a window frame, at least one pane and a pane frame. In spite of the rapid development in the thermal insulation properties of glazing and frames in recent years, the windows on a building basically remain heat holes. In the Central European climate, around a third of the heating energy in the house is lost through the windows. Above all, the frame is the problem at the window. While the frame used to have the better thermal insulation coefficient (k-value) than the glazing, today it is the other way around, because the glazing technology has made great progress. Today, double glazing is mostly used, sometimes even triple glazing, and the air in the spaces is often replaced as much as possible with noble gases such as krypton or xenon. This significantly improves the glazing's k-values. This improvement in thermal insulation also results in less condensation on the room-side pane. In many countries there are thermal insulation regulations for new buildings and old building renovations. In Switzerland, thermal insulation glazing with a minimum k value of 1.8 watts / m ² K is required. The best triple heat protection glasses achieve k values around 0.4 watts / m ² K, with the gaps filled with expensive xenon. However, the best glazing does not help if the frame is unsuitable. The tightness of the connection point between the pane and frame on the one hand and the connection of the frame to the window reveal is of particular importance. If these transitions are not carefully carried out, the insulating effect of the glazing can be reduced by up to 70% become. The wooden frames insulate best, are comparatively inexpensive and offer the greatest design options. Nevertheless, in addition to traditional wooden frames, metal and plastic frames have become increasingly popular in recent years. They are more permanent and do not have to be deleted from time to time. Plastic window frames made of PVC are somewhat cheaper than wooden frames and have only a little poorer insulation properties. With certain types of plastic, disposal is not possible, since dioxins are formed and released when they are burned. Chlorine-free plastics such as polyolefin and polyurethane are therefore under discussion. Metal frames, especially aluminum frames, insulate less well than wood or plastic frames, and are even more expensive. However, they offer the advantage that they are particularly weather-resistant, light and stable, making even large pivoting and tilting windows easy to operate. The main problem with wooden frames is that when they are exposed to the weather, they inevitably suffer severely and therefore have a limited lifespan. Wooden windows require half as much energy for production, maintenance and final use as structures made of wood, aluminum and plastic, as the research report 115/24 of the Swiss Federal Laboratory for Materials Testing EMPA in CH-8600 Dübendorf showed. This fact makes wooden windows more environmentally friendly than alternative materials. Another topic is aesthetics. Architects and builders are increasingly requesting windows that are as slim as possible or have no mullions. Here the metal windows have advantages over plastic and wooden windows because their stability allows thinner frame thicknesses. The frame can be tightened on all sides so as not to reduce the clear height and width of the window reveal through the frame as much as possible. Nevertheless, with today's constructions an all-round reduction in the light dimension of up to 3.5 cm must be expected. With a standard window of 2.56 m ² , the frame reduces the clear area by at least 8.5%. There are also composite frames that, for example, are made of weather-resistant aluminum on the outside, but on the inside of well-insulated wood. These are about 25% more expensive than pure wooden frames, but about 10% cheaper than pure aluminum window frames. Optimal insulation values and outstanding solidity are provided by sophisticated frame constructions with even several sealing levels and complicated hollow profiles, some of which are designed in composite construction. So far, however, this quality can only be bought with relatively high manufacturing costs. It is therefore the object of the present invention to provide a window system which, above all, has a considerably better thermal insulation effect, is simpler and therefore less expensive to manufacture and assemble, and which furthermore allows the use of wood as a window frame material without its disadvantages to have to accept the weather wear, and that is more versatile in terms of aesthetic design options and in particular enables a larger effective window pane area with a certain window reveal than the previously known constructions.

This task is solved by a window system consisting of a window frame, pane and pane frame, which is characterized in that the window frame can only be installed from the inside of the window into a recess on the inner edge of the window reveal so that it faces in the direction nowhere protruding towards the middle of the window and so cannot be seen from the outside of the window.

In the figures, the new window system is shown in different views and explained in the description below. It shows:

FIG. 1: a horizontal cross section through window reveal, window frame,

Pane frame and window pane in a plan view;

FIG. 2 shows a perspective sectional drawing of the principle of the window system according to the invention;

FIG. 3 shows a horizontal cross section through window reveal, window frame,

Pane frame and window pane of a specific design in the area of a vertically extending frame part;

Figure 4 shows a vertical cross section through the window reveal, window frame, window frame and window pane of this specific design in the lower, horizontally running frame part; Figure 5: A section of a sealing profile;

Figure 6 Another sealing profile in cross section;

Figure 7 A corner part of the sealing profile with an integrated drainage channel.

FIG. 1 shows the principle of the invention in a horizontal cross section through the vertical window frame and the window reveal there, seen from above. In this illustration, the outside of the window is located above the image. The construction essentially consists of a window frame 1 with a sealing profile 3, a window frame 2 and a window pane 4. The window frame 1 and the window frame 2 are preferably made of wood. The special thing about this window system is that not a single wooden frame part is exposed to the weather, and that the window pane 4 completely fills the clear height and width of the window reveal 9. When the window is closed, the pane 4 is sealed on the outside by means of a circumferential rubber seal 7 which is inserted in the profile 3. This profile 3 is flush with the four levels of the window reveal 9. The entire window frame 1 can only be installed from the inside of the window into a recess on the inner edge of the window reveal 9, so that it does not project beyond it towards the center of the window and thus from the window Seen from the outside of the window is not visible at all. The outer wall 6 here consists of a wall or of wood and it is clad on the outside with an outer insulation 5. The inner edge of the window reveal formed by this wall and the associated outer insulation has a recess into which the window frame 1 can be installed flush with the inner wall. In practice, this can be done simply by screwing it into the masonry or into the wood of the outer wall. The window frame 2 with the window 4 enclosed by it is then inserted. In the example shown here, this is connected to the window frame 1 via the hinge 8. On the opposite side, the window frame 2 is pressed in the closed state of the window by means of a conventional locking mechanism on the window frame 1 and there on the rubber lip 7 of the profile 3 fastened to the window frame. FIG. 2 shows the principle of the new window system in a perspective view, the lower part of the window also being shown, which can be identical to the upper part. In the example shown here, you have double glazing. The two panes 4 are held in a conventional manner in a pane frame 2, which is hinged to the actual window frame 1. The rubber seal 7 runs around the entire window reveal 9 in levels that are practically flush with the window reveal 9. If the window is closed, the outer pane 4 is pressed all around against this rubber seal 7, which ensures optimum thermal insulation. In addition, the window reveal 9 is not reduced in its dimensions by the frame, neither by the pane frame 2 nor by the window frame 1. The see-through pane 4 completely fills the entire width of the window reveal 9. Apart from the actual outer pane 4, only the sealing profile 3 and the rubber seal 7 are exposed to the weather when the window is closed. However, these two elements are not even in the window plane, but perpendicular to it, so that the weather can only have a very limited effect on them. If, for example, a plastic profile is used as the sealing profile 3, it is extremely weather-resistant. The rubber seal 7 is hardly exposed to the weather and should it become brittle due to the sun, this seal 7 can be replaced very easily. With this system, the other parts of this window are completely protected from the weather. Therefore wood can be used as a frame material without further notice. This is environmentally friendly and, moreover, very inexpensive. Only the two profiles 1, 2 for window frames 1 and window pane 4 have to be produced, either by milling from solid material or by gluing several profile pieces. The installation of the window system is very easy. The window frame 1 is screwed vertically onto the wall. If the window reveal 9 is not exactly correct, this can be easily corrected. If it is somewhat too large, for example, the profile 3 can be removed from the window frame 1 and this is then planed off a little there, after which the profile 3 is mounted on the window frame 1 again. Conversely, if the window reveal 9 is somewhat too small, something can be underlaid between the profile 3 and the window frame 1. Any space in between can be filled with a sealing compound. Instead of hinging the window frame 2 to the window frame 1, in another embodiment the window frame 2 can also be moved parallel into the window frame 1. By means of a special mechanism, it can then be displaced in parallel from the plane of the window frame 1 towards the interior of the room, after which it can then be displaced towards the top, bottom or to the side. If the displacement is to take place upwards or downwards, counterweights can reduce the necessary displacement forces when actuated.

FIG. 3 shows a horizontal cross section of an exemplary embodiment of the window system in the area of the vertically extending frame part 1 with window reveal 9, window frame 1, window frame 2 and window pane 4. The inside of the window is in this illustration above the picture. The window frame 1 installed in the window reveal 9 rests on sealing elements 10, as a result of which the frame has no direct contact with the walls. The joints between window reveal 9 or wall

6 and window frame 1 are sealed to the outside with silicone putty 11. The window frame 1 and the window frame 2 are made of wood in this version. The window pane 4 completely fills the clear height and width of the window reveal 9 and the pane 4 is closed when the window is closed by means of the surrounding rubber seal

7 sealed, which is inserted here in a groove 3 machined in the window frame 1, which acts as a seal receiving profile. With this constructive solution, not a single wooden frame part is exposed to the weather. The window frame 2 is connected to the window frame 1 via the hinge 8. On the opposite side, the window frame 2 is pressed against the window frame 1 in the closed state of the window by means of a conventional locking mechanism, regardless of whether it is a single-leaf or multi-leaf window. The pane frame 2 comes to rest on the seal 12 and on the outside of the window the pane 4 presses against the rubber seal 7 fastened in the window frame 1. The laminated glass panes 4 are fastened in a conventional manner in the pane frame 2 by means of T-shaped rails 13. These T-shaped rails 13 can be made of plastic or aluminum, for example. In the example shown, this T profile rail 13 has another task. The rubber seal 7 has a special profile in such a way that it can be pressed into the groove 3 on the window frame 1 on the one hand and can be slipped over the outer edges 14 of the window frame 1 on the other hand. When the window is closed, the T-profile rail 13 is therefore in the area of the window frame 1 is first pressed against the slipped-over part of the rubber seal 7 before the seal 7 presses completely against the pane 4. The seal has special lips 15 which rest on the windshield in the manner of a windshield wiper blade. When the window is closed, the seal 7 is kept in a slightly deformed state, which ensures that the lips 7 bear sealingly against the pane 4 even in unfavorable weather conditions.

FIG. 4 shows a vertical cross section of the window system in the lower region of the window. The outside of the window is here to the right of the picture. In the embodiment shown, the lower, horizontal section of the rubber seal 7 is covered with a profile 16. This profile 16, for example made of aluminum or plastic, is attached to the window frame 1 and extends broadly from the window pane 4 outwards and obliquely downwards. However, the profile 16 is not in contact with the window pane 4. When the window is closed, a narrow gap remains between the profile 16 and the pane 4, so that although the water drains outside via the pane 4 and the profile 16 in heavy rain, small amounts of water run along the pane 4 and the seal 7. In order to prevent this water from accumulating in the space between the profile 16 and the rubber seal 7, 16 holes 17 are provided in the profile, through which the water can flow off. On the outside of the profile 16 there is a weather bar 18, which in the example shown serves as a window ledge and through which the water running off the window can flow off. Both the profile 16, which covers the seal 7, and the weather bar 18 are only attached to the lower, horizontally running window frame 1 in the example shown. It is also conceivable that the profile 16 extends around the window reveal along the entire seal 7 and surrounds it to protect the seal 7. Weather legs 18 can also be mounted along the entire window recess in order to cover or disguise the window reveal 9. All common materials used for outer cladding, such as wood, plastic, aluminum or stone, are suitable for the weatherboard 18. On the inside of the window, the window frame 2 is approximately so wide that the window frame is just covered when looking through the closed window. In another embodiment variant, the window frame 2 is made wider for aesthetic reasons, as is shown in FIG. dashed lines 19 is indicated. As a result, both the seal 7 and the profile 16 are covered from the inside and are no longer visible.

An essential point in this window system is the seal 7, whose task is to completely seal the window from the outside inwards against wind and water. Depending on the design, shape and size of a window, the profile of this seal 7 can be different. The seal 7 is preferably made in one piece. But it can also be composed of two or more parts. 5 and 6 show special exemplary embodiments for profiles of such a seal 7. The seal 7 shown in Figure 5 consists of a hollow rubber profile, which has on its underside two profile extensions 23 as mounting profiles 23 for its mounting, which can be pressed into corresponding recesses or grooves in the window frame 1. The profile has cavities 24 and on its side facing the window pane there are three lips 15 which are arranged one above the other and which are placed further and further outwards towards the top. The dashed line 22 indicates the plane of the glass pane when it first contacts the seal 7 when the window is closed, that is to say when the pane in the picture approaches the profile from left to right. It can be clearly seen that the uppermost lip 15 is first pressed against the glass. At the same time, the pane or the pane frame touches the front bead-like buffer strip 20. When the window is closed further, the pane also presses against the other lips 15 and the buffer strip 20. The cavity 25 in this buffer strip 20 is compressed and the buffer strip 20 is finally between the window frame and Disc or disc frame firmly clamped. The entire lower, horizontally extending part of the seal 7 is thereby firmly held in the insertion grooves. The lips 15 are slightly deformed by the pressure of the windshield and lie sealingly on the windshield in the manner of a windshield wiper blade. Because the seal 7 is made of elastic material and is slightly inclined towards the window, it acts like a spring in this area and presses the lips 15 against the pane. Ribs 26 are provided on the profile 7 between the lips 15 and run parallel to the lips 15. As soon as these ribs 26 touch the pane when the window is closed, the upper area of the seal 7 is pressed outwards, which prevents the lips 15 from being deformed too much. Another embodiment of the seal 7 is shown in FIG. It differs mainly by the specially shaped claw 28 on the underside of the rubber profile, which is used to fasten the seal 7 to the window frame 1. With the help of this claw 28, the seal 7 can be mounted on the window frame so that when the lips 15 are acted upon by the window pane, the seal 7 is held firmly on the window frame by means of the claw 28 by providing the necessary reaction forces. This ensures that even when all lips 15 are deformed, the seal 7 still holds firmly on the window frame and does not jump out of the fastening groove. Depending on the type of window and window frame, an optimal effect can be achieved by choosing an appropriately suitable profile for the seal 7. Of course, the size of the window and the window frame material used play an important role.

FIG. 7 shows a corner part of a one-piece seal 7. In the corners of the profile, channels 27 are already incorporated during manufacture, which run diagonally downwards and outwards from the inside. In the previously shown versions of the seal 7, the lips 15 rest against the pane when the window is closed. There is a cavity 21 between the bottom lip, that is to say the lip closest to the window frame 1, and the bead-like buffer strip 20 from FIG. 5, which is clamped between the window frame 1 and the window frame 2 when the window is closed. if such could seep between the pane 4 and the sealing lips 15 in extreme weather conditions, for example strong wind and rain. This water can be drained to the outside via the channels 27. At the same time, these channels 27 are also used for venting or venting the cavity 21 and thus also for pressure equalization in the cavity 21.

This window system presented here allows larger window areas to be realized with existing window reveals and thereby ensures optimal thermal insulation. As a result, a greater incidence of light is achieved with an existing size of a window reveal, which leads to brighter rooms inside and is basically aimed for. The windows should generally be divided less often, because if you open the windows for ventilation, the window should be opened as far as possible and the ventilation should be done in short time intervals in order to exchange the largest possible amount of air to achieve with as little heat loss as possible. A large, one-piece window is more suitable than one with several small window sashes. Small window sashes may have the right to open a window to look out, for example, so that you can stick your head out of the window or shout something to someone who is outside. In principle, however, many windows are divided unnecessarily today, out of sheer habit. But far from every window you have to be able to open a casement and stick your head out of the window. You also have to ask yourself how often an opening for this purpose actually takes place. In most cases, the windows are only opened to ventilate or clean the windows. For every unnecessary subdivision of a window, there is a significant reduction in thermal insulation. If the window is to be subdivided for aesthetic reasons, this can also be implemented with this new window system. Metal, plastic or wood profiles can be glued to the outside of the window pane for purely decorative purposes, or, as is conventionally done, inserted between the panes. The same can be done on the inside. In this way, even the most delicate decorations can be realized on request. These subdivisions then no longer have a technical function, but they do not deteriorate the thermal insulation.

Claims

claims 1. Window system consisting of window frame (l), pane (4) and pane frame (2), characterized in that the window frame (1) can be installed exclusively from the inside of the window into a recess on the inner edge of the window reveal (9) , so that it does not protrude anywhere towards the middle of the window and is therefore not visible from the outside of the window. 2. Window system according to claim 1, characterized in that the window frame (1) on the inside of the window has a recess into which the pane frame (2) can be pivoted, the pane (4) with its outside when the window is closed all around Gasket (7) abuts, which rotates on the window frame (1) directed towards the inside of the window. 3. Window system according to claim 1, characterized in that the window frame (1) on the inside of the window has a recess into which the window frame (2) fits, the window (4) with its outside when the window is closed all around Gasket (7) abuts, which rotates on the window frame (1) directed towards the inside of the window. 4. Window system according to one of the preceding claims, characterized in that the window frame (1) on the pane outside with the window reveal (9) is flush and towards the center of the window by a profile (3) or a groove is completed, wherein a seal (7) acting against the inside of the window is inserted. 5. Window system according to one of claims 1, 2 or 4, characterized in that the window frame (2) is hinged to the window frame (1) on at least one vertical side, the window frame (1) is flush with the window reveal (9) and is closed towards the center of the window by a profile (3) or a groove, in which a seal (7) acting against the inside of the window is inserted. 6. Window according to claim 3, characterized in that the window frame (2) by means of a mechanism from the plane of the window frame (1) against the interior of the room can be displaced in parallel, after which it can be moved towards the top, bottom or to the side. 7. Window according to one of the preceding claims, characterized in that the seal (7) is designed as a one-piece hollow profile which has a cavity (24) for its deformation and at least one mounting profile (23) for insertion into a corresponding groove, and on both sides cantilevered edge finishes so that it can be placed over the inner edge of the window frame (1) and its overlapping edges form a sealing contact surface on both sides of the window frame edge. 8. Window according to claim 7, characterized in that the seal (7) placed on the inner edge of the window frame (1) projects beyond this edge towards the inside of the window with increasing distance from the edge of the window frame, and that on the surface directed towards the inside of the window the seal (7) has a plurality of lips (15) which, when the window is closed, are intended for sealing contact on the window pane (4). 9. Window according to one of claims 7 or 8, characterized in that the projecting on the inside of the window edge of the seal (7) forms a buffer strip (20) having a cavity (25), the seal (7) being shaped in this way is that when the disk (4) is in contact with this buffer strip (20), the lip (15) which is furthest away from it is deformed, while the middle lip (15) touches at most the disk (4) and the closest one the disk (4) not touched while at From the contact pressure of the disc (4) deformed buffer strip (20) all lips (15) lie deformed on the disc (4). 10. Window according to one of claims 7 or 8, characterized in that the projecting on the inside of the window edge of the seal (7) is designed as a claw (28) which fits into a corresponding insertion groove on the window frame (1), such that at Acting on the seal (7) through the disc (4), this claw (28) supplies the reaction forces so that the seal (7) does not come out of the profile or the groove (4) even when the lips (15) are pressed against the disc (4). 3) jumps.