WO2019052987A1

WO2019052987A1 - Plastic-metal window system

Info

Publication number: WO2019052987A1
Application number: PCT/EP2018/074403
Authority: WO
Inventors: Edgar Stemeseder
Original assignee: G. S. Georg Stemeseder Gmbh
Priority date: 2017-09-12
Filing date: 2018-09-11
Publication date: 2019-03-21
Also published as: AT523544B1; AT523544A5; DE102017121096A1

Abstract

The invention relates to a plastic-metal window system (1) having a fixed frame (2) made of plastic, an attached shell (3) made of metal, and a glazing unit (4), wherein the fixed frame (2) is formed from extruded plastic hollow profiles (21), and wherein the shell (3) is fastened to the fixed frame by means of latching retention elements (23). Here, this window system (1) is distinguished by the fact that the latching retention elements (23) are extruded onto the plastic hollow profiles (21) and thus formed in one piece therewith. The invention therefore develops a plastic-metal window system of the type in question in such a way that it can be mounted in a simpler manner and allows greater design freedom.

Description

description

Plastic-metal window system

The invention relates to a plastic-metal window system with a plastic frame and an attached shell made of metal and a glazing, wherein the frame is formed of extruded hollow plastic profiles, and wherein the shell is secured by snap-holding elements on the frame.

Plastic-metal window systems according to the present invention are understood to mean individual window arrangements with only one glazing, as well as element-type window systems with a plurality of juxtaposed window arrangements. This includes window constructions of all sizes as well as window doors and the like. Basically, various designs of window arrangements have become known from practice. In addition to pure wooden windows, which are still frequently used, composite construction has increasingly conquered a market segment. Such composite windows are usually designed as a wood-metal window or plastic-metal window. The metal used for the outer shell is usually aluminum or an aluminum alloy. The use of a metal shell on the outside has the advantage that this exposed to weathering frame surface is particularly well protected. However, with the connection of such in terms of physical properties but very different materials a certain effort involved. The present invention relates to window systems in which a metal shell is placed on hollow plastic profiles.

An example of such a composite window has become known from DE 10 2005 021 934 AI. This window assembly has a conventionally formed frame and sash, which are each constructed of extruded plastic hollow sections. These frame body meet in a known manner all the prerequisites to give the window a sufficient strength and stability can. In addition to this, however, is on the outside one each Metal veneer provided, which can be coupled via a latching connection thereto, to serve as additional weather protection. This design has the advantage that the customer has the choice between a pure plastic window and a plastic-metal window. The metal veneers are thus additional elements that can be bought at an additional cost.

From DE 102 02 812 Cl a further construction of a composite window has become known. This document relates in particular to a thermally insulated plastic window. For this purpose, the metal shells present on the outside are designed in several parts and have a cavity which is foamed with a plastic. The coupling of these insulated metal shells takes place on the casement via hook webs formed thereon. These engage in an undercut groove of the outer shell. On the frame holders are screwed in a conventional manner, which also produce a latching connection with undercut grooves on the insulated frame panel.

This construction thus attacks at least on the frame from the usual way of connection between these different materials and provides for the use of pawls on an otherwise conventional window frame profile. In other words, it would also be possible to dispense with the outer shells and to use the frame for a pure plastic window.

The resulting from DE 102 02 812 Cl construction has the disadvantage that quite a considerable effort for the positioning and fixing the latch holder on the plastic frame is obtained. The assembly of this composite window is therefore expensive.

In addition, such plastic-metal window systems are often applied to larger industrial or office buildings, which also contain larger-sized glazing units in the facade. For this purpose, the conventional systems consistently provide individual plastic windows next to one another and rigidly connect them to one another. In the course of the invention, however, it has been shown that in practice would be desirable, similar to conventional wooden windows to arrange an element construction with setting or fighter profiles for subdivision of the glazing. The known plastic-metal window systems, however, offer no solution for this, since they follow the construction of the frame elements to the construction of conventional plastic windows.

The invention is therefore based on the object, a plastic-metal window system of the generic type such that this can be easily installed and allows greater freedom in design.

This object is achieved by a plastic-metal window system with the features of claim 1. This is characterized in particular by the fact that the snap-holding elements are extruded onto the hollow plastic profiles and thus formed integrally therewith.

According to the invention, it has been recognized that the assembly of such composite windows can be made considerably easier precisely by taking a departure from the conventional frame construction methods. Were the plastic frame in the prior art still designed so that they can be used without the metal shell, to see the invention, however, now specifically to develop these specifically, making them without outer shell are hardly useful, with the outer shell, however, a special form advantageous composite construction.

In particular, it has been recognized that the plastic material of the frame is particularly well suited to extrude the latching elements to the plastic hollow sections, so that it is possible to dispense entirely with the mounting of separate holders. The corresponding processing steps can thus be omitted, which significantly speeds up the provision of the composite window. Furthermore, the extra effort for the on-extrusion of the Rasthalteelemente on the frame is extremely low, since this can be done in one go. In addition, this step can be carried out very inexpensively. The window system according to the invention can thus be mounted in a simple manner and very quickly. At the same time, the patch shell made of metal has to be configured only in the coupling area matching the latching retaining sections. Apart from this, however, a variety of design options are given. The plastic-metal window system according to the present invention thus also allows a large variety of variants. As a further advantage, examination of a prototype of the present invention has shown that due to the inventive connection of the shell to the frame results in an overall stiffer window system, so that the usual use of steel as stiffening core in the frame at least reduce or, as appropriate Window size and use case, let completely avoid. This not only saves material and thus costs, but also reduces the weight of the window system. This is especially for larger, sometimes over two or more floors extending heights advantageous. Advantageous developments of the plastic-metal window system according to the invention are the subject of the dependent claims.

Thus, the frame and the shell can be connected by means of the latching elements with a game in a plane parallel to the glazing level. This makes it possible to compensate for the different thermal expansions due to the different material for the frame and the shell in a particularly simple manner. Depending on the size of the window system, the game should be 2mm or more. The game itself can be provided in a particularly simple manner due to an elasticity or flexibility of the Rasthalteelemente. This is achieved in a particularly simple manner in that the latching holding elements are formed of a softer material than the shell. Additionally or alternatively, the locking elements can be extruded in the manner of a film hinge or otherwise flexible manner on the frame.

If the plastic-metal window system provided with a fixed glazing, a glazing through the shell can be held on the frame. The shell therefore has not only a purely optical and / or the frame from the weather protective function, but also a holding the glazing Function. Separate retaining elements for the glazing are not required. Similarly, even with a window sash, a shell can hold the glazing if the sash is formed from an actual sash analogous to the frame with an outer (or inner) shell.

Furthermore, according to a development of the invention, several window elements can be combined in a frame, which is subdivided by setting profiles and / or fighter profiles. This is achieved in that the frame members according to the present invention are not designed on the outside as the actual outer end of the window, but offer a docking point for the metal shell, resulting in greater design freedom. This also makes it possible, with considerably less effort, to subdivide glazing and to provide suitable coupling points for the metal panel. Such a configured window system can therefore be provided with an attractive appearance and, in particular, the visible frame elements or shells can be made slim. The usable glazing area is thereby larger than in conventional constructions in which such subdivisions were not possible or several, separate window arrangements were simply placed side by side. In this case, the window system can have at least one window element with a fixed glazing. This is particularly advantageous for larger buildings, such as large office buildings or the like. Thus, an attractive facade design can be achieved with a large glazing area. Alternatively or additionally, it is also possible that the window system has at least one window element in the form of a turn-tilt window with a sash and serving as a sash panel shell made of metal, wherein the sash made of extruded plastic hollow profiles with an extruded snap-holding elements is formed, and wherein the Wing panel is attached by means of the latching elements on the sash. Then it is possible according to the invention to design window systems with tilt and turn windows in the assembly-friendly design shown. In particular, this allows an element construction with multiple window arrangements, which are designed as a turn-tilt window or as a combination of turn-tilt windows with window arrangements with fixed glazing. Especially in the construction of large office buildings or the like, this is a considerable advantage. Furthermore, it is advantageous if the latching retaining elements are aligned such that a mounting direction of the shell or wing panel is substantially perpendicular to the glazing plane. This facilitates the assembly of the metal shell quite considerably, since the window system is particularly easy to access in this direction. If the shell or wing panel of a window member consists of a plurality of interconnected shell sections and can be handled as one piece, the assembly is further simplified. The shell can then be prefabricated separately and attached as a piece to the frame or sash. In addition, then the individual shell sections are connected together, whereby they form no gaps at the joints in the mounted state, for example, due to changes in length caused by sunlight or the like, which would be detrimental to the appearance of the window assembly.

Preferably, the shell or wing panel in the joint area of the shell sections can be connected to each other via connecting pieces. Then, a particularly stable coupling of the elements can be achieved in this area.

If the connecting pieces are of angular design and present as corner connectors, they produce a particularly reliable connection, especially in the critical corner region of two shell sections. A gaping apart or twisting of the shell sections in the joint area can be prevented so particularly reliable.

The connecting pieces may be positively connected by mechanical pressing with the shell sections. In this way, a reliable connection can be made very quickly. In addition, a very low production costs associated with this. Alternatively or additionally, the shell sections of a window element in the joint area can also be welded together. As a result, the strength improves significantly at the joint again. In particular, twisting of the elements in this area can thereby be prevented particularly reliably.

If the shell or wing panel is made of aluminum, it is possible to fall back on a material which has proven itself very well for this application.

The invention will be explained in more detail in exemplary embodiments with reference to the figures of the drawing. It shows:

Fig. 1 is a perspective detail view of a plastic-metal window system according to the invention;

FIG. 2 shows a further perspective view of the window system according to FIG. 1; FIG.

Fig. 3 is a horizontal section through the window system of FIG. 1;

Fig. 4 is a perspective view of a plastic-metal window system in another embodiment;

5 is a perspective detail view of yet another embodiment of a plastic-metal window system.

Fig. 6 is a vertical section through the lower portion of the turn-tilt window of FIG.

5; and

7 is a front view of the window system of FIG .. 5

As shown in FIG. 1, a plastic-metal window system 1 has a window frame 2 and a shell 3. The frame 2 is designed to receive a glazing not shown here as a fixed glazing, wherein the shell 3 the Glazing on the frame 2 stops. The is composed of a plurality of hollow plastic profiles 21 and a post or setting profile 22, which is also made of plastic and designed as a hollow profile. The individual components of the frame 2 are welded together at the joints in a conventional manner.

On the side facing the shell 3, the hollow plastic profiles 21 and the setting profile 22 comprise latching holding elements 23 which are extruded in one go with them, i. are integrally formed on the frame. The latching element 23 has two resilient retaining webs 23 a, which protrude outwardly to be able to form a stable connection with the shell 3. At the same time, the holding webs 23 a still have a certain elasticity or flexibility in order to ensure a certain play of the shell 3 relative to the frame 2 in the glazing level. With this game, which may be 2 mm or more, a different degrees of thermal expansion between the frame 2 on the one hand and the shell 3 on the other hand due to the different materials with different thermal expansion coefficients can be compensated. The latching element 23 accordingly has a quasi-T-shaped configuration in cross-section. They are dimensioned differently on the plastic hollow profiles 21 and 22, but identical in function.

The shell 3 is substantially similar to the frame 2 before, as shown in particular in FIG. 2 can be seen. It contains shell sections 31, which cover the frame 2 on the outside and protect against the weather. In this case, no notching of the shell sections on the setting profile is required. The shell 3 is made of aluminum.

The shell sections each have a retaining groove 32 in cross section, which form an undercut space for receiving the retaining webs 23 a of the latching holding elements 23. The retaining webs 23a engage in the retaining groove 32 and provide a latching connection. FIG. 3 shows a horizontal section through the window system 1, From which the interaction of the latching holding elements 23 with the retaining groove 32 becomes even clearer.

The individual shell sections 31 of the shell 3 are connected to one another in a manner which will be explained later, so that the shell 3 can be handled as a single piece. During assembly, the shell 3 is picked up accordingly and fixed to the Rasthalteelementen 23. The installation direction is in this case perpendicular to the glazing plane, so that the shell 3 is pressed on in a simple way from the outside until the retaining webs 23a engage in the retaining grooves 32 and lock the composite.

4, a perspective view of a window system according to a second embodiment is shown.

As can be seen from the illustration, the window system 1 'has no fixed glazing; instead, the glazing 4 is housed in two sash 5, each having a wing panel 6 made of metal.

The window system 1 'thus has two turn-tilt window elements, which are received in a common frame 2', wherein a separation profile 22 'or posts is arranged as a separation between them. The frame 2 'is in turn constructed of hollow plastic profiles 21' and has a shell 3 'made of metal.

Each casement 5 is in turn composed of hollow plastic profiles 51 which have latching elements 52. These are like the frame 2 'provided with resilient hook webs 52a (see Fig. 6). The hook webs 52a and the snap-holding element 52 are integrally formed with the plastic hollow profiles 51 and already extruded thereon in the course of production and also provide the above already explained in connection with the first embodiment game. The frame 2 'is in a conventional manner to the inclusion of the

Sash adapted to 5, however, as in the previous embodiment has latch holding elements with holding webs for locking a shell made of metal. On the sash frame 5, the sash panel 6 is arranged, which is constructed of shell sections 61 and the glazing 4 holds. These each have a retaining groove 62 (see Fig. 6) for receiving the hook webs 52a. The shell portions 61 are connected to each other in a manner yet to be shown and form a circumferential frame, the sash panel 6. This is thus designed in one piece and can in turn be attached in one go to the sash 5 and clipped thereto. The mounting direction is equally perpendicular to the plane of the glazing 4. In Fig. 5, there is shown a plastic-metal window system 1 ", which is still another embodiment of the present invention As can be seen from this, such window systems 1 "can also be realized with the present invention A frame 2" is in turn connected to a shell 3 "made of metal The wing frame 5 likewise has the wing panel 6.

Fig. 6 shows a vertical section through the lower portion of the turn-tilt window of FIG. 5. As can be seen, is a wing panel 6 in a plane so offset from a shell 3 "on the frame 2" before that they are in a conventional manner overlap. The shell 3 "and the wing panel 6 are in the manner explained in each case via latching elements 23" and 52 with hooked webs 23a "and 52a" in cooperation with retaining grooves 32 "and 62 on the frame 2" and the sash 5 analogous to those described above Specified embodiments. The wing panel 6 in turn holds the glazing 4 on the outside.

As can also be seen from FIG. 6, on the underside of the window system 1 "there is a metal window sill which, in cooperation with a sealing piece, produces a reliable seal in this area. The sealing piece is the subject of European patent EP 2 514 905 Bl. The sill is the subject of DE 10 2012 109 097 AI. For further details of this lower end of the window system 1 ", reference is made to the content of these documents. 7 shows a front view of the window system 1 "according to FIG. 5. As is indicated schematically, shell sections 31" of the shell 3 "are coupled to one another via corner connectors 33. 6, they are received in a receiving groove in the respective shell section 31 "and mechanically pressed in. In the same way, the shell sections 61 of the wing cover 6 are connected to one another by means of corner connectors 63 (see FIG.

The shell portion 31 "for the setting profile 22 or 22 'is also coupled to the adjacent shell portion 31" of the frame 2 and 2' via connecting pieces 34. The entire frame 2 is thus handled as one piece.

The invention allows, in addition to the illustrated embodiment, further design approaches. Thus, it is possible to design the plastic-metal window system so that it contains only one window element. This can be realized both as a fixed glazing element or as a turn-tilt window or the like.

On the other hand, it is also possible that a window element is divided in the transverse direction, including a fighter profile or a bolt is arranged. Even then, the invention can be applied in an analogous manner.

Furthermore, it is not absolutely necessary for the latching holding elements to be aligned such that a mounting direction of the shell 3 is substantially perpendicular to the glazing plane. This applies equally to the wing panel 6. In particular, when the shell 3 and the wing panel 6 is not handled as one piece, but is present in individual elements, other mounting directions are feasible.

Accordingly, it is also not necessary that the shell 3 or the wing panel 6 is connected to each other in the joint area of the shell sections via connecting pieces. This can also be dispensed with. On the other hand, it is also possible to weld the shell sections 31 and 61 in the joint area alternatively or in addition to one another. Such welding is more expensive, but provides in the long term even greater dimensional stability and thus a better aesthetic appearance.

For the plastic hollow sections 21 and 51, the known and proven plastics can be used. In particular, however, it is also possible to add recycled plastic components. The shell 3 or wing panel 6 is formed in the embodiment shown made of aluminum. However, another metal, in particular light metal, may also be used.

In addition, it is possible to give the shell 3 or wing panel 6 by powder coating or the like. A high-quality appearance or to design certain structures such as a wood imitation or the like.

In the embodiments shown, the latching elements 23, 23 'and 23 "engage the holding grooves 32, 32' or 32" at a distance. The latching elements 23, 23 ', 23 "form the male part, while the retaining grooves 32, 32', 32" form the female part. Alternatively, however, the latching elements can also be formed in a groove-like manner as female parts and engage around a corresponding male counterpart on the shell 3 from the outside.

Claims

claims

Plastic-metal window system (1; Γ; 1 ") with a frame (2; 2 '; 2") made of plastic and an attached shell (3; 3'; 3 ") made of metal and with a glazing (4), wherein the frame (2, 2 ', 2 ") is formed from extruded plastic hollow profiles (21, 21'), and wherein the shell (3, 3 ', 3") is secured to the frame by means of latching elements (23, 23', 23 ") is fastened, characterized in that the latching holding elements (23, 23 ', 23 ") to the hollow plastic profiles (21, 2) are extruded and thus integrally formed therewith.

Plastic-metal window system according to claim 1, characterized in that the frame (2, 2 ', 2 ") and the shell (3, 3', 3") by means of the Rasthalteelemente (23, 23 ', 23 ") with a Game, preferably of 2 mm or more, are connected to each other in a plane parallel to the glazing plane.

Plastic-metal window system according to claim 2, characterized in that the play is due to an elasticity or flexibility of the Rasthalteelemente (23, 23 ', 23 ") is given, in particular by the Rasthalteelemente (23, 23', 23") of a softer material than the shell (3, 3 ', 3 ") are formed.

Plastic-metal window system according to one of claims 1 to 3, characterized by a fixed glazing, wherein a glazing through the shell (3, 3 ', 3 ") on the window frame (2, 2', 2") is held.

Plastic-metal window system according to one of claims 1 to 4, characterized in that a plurality of window elements in a window frame (2, 2 ', 2 ") are combined, which are divided by setting profiles (22; 22') and / or fighter profiles.

6. plastic-metal window system according to claim 5, characterized in that it comprises at least one window element with a fixed glazing.

7. plastic-metal window system according to claim 5 or 6, characterized in that it comprises at least one window element in the form of a turn-tilt window with a sash (5) and serving as a sash (6) shell made of metal, said sash ( 5) is formed from extruded hollow plastic profiles (51) with extruded latching holding elements (52), and wherein the casement panel (6) is fastened to the casement frame (5) by means of the latching holding elements (52).

8. plastic metal window system according to one of claims 1 to 7, characterized in that the latching elements (23, 23 ', 23 ", 52) are aligned such that a mounting direction of the shell (3, 3', 3") or wing panel (6) is substantially perpendicular to the glazing plane.

9. plastic-metal window system according to one of claims 1 to 8, characterized in that the shell (3, 3 ', 3 ") or wing panel (6) of a window element consists of a plurality of interconnected shell portions (31, 61) and as a piece is manageable.

10. plastic metal window system according to claim 9, characterized in that the shell (3, 3 ', 3 ") or wing panel (6) in the joint area of the shell portions (31, 61) is connected to each other via connecting pieces.

11. plastic-metal window system according to claim 10, characterized in that the connecting pieces are formed angularly and as corner connectors (33, 63) are present.

12. plastic-metal window system according to claim 10 or 11, characterized in that the connecting pieces by mechanical pressing with the shell portions (31, 61) are positively connected.

13. Plastic-metal window system according to one of claims 9 to 12, characterized in that shell sections of a window element are welded together in the joint area.

14. Plastic-metal window system according to one of claims 1 to 13, characterized in that the shell (3, 3 ', 3 ") or wing panel (6) is formed of aluminum.