EP2987935A1 - Window - Google Patents

Abstract

The invention relates to a window (1) with a frame of interconnected frame profiles, wherein the frame profiles comprise a self-supporting core element (2) of interconnected profile elements (4), wherein the profile elements (4) are made as molded parts of a plastic foam and wherein the Profile elements (4) on at least one surface (7) have a planking (8) made of a plastic foam of the profile elements (4) different material.

Description

The invention relates to a window with a frame of interconnected frame profiles.

Due to different styles in the construction industry and different customer requirements, window manufacturers today have to provide a multitude of different window profiles. This affects both the profile geometry itself and the visible surfaces. Due to the different profile geometries are often make changes to machine settings to the corresponding recordings for, the various fittings, such. Straps, closures or handles. The profiles are joined to the frame after processing with sometimes very complex procedures.

The object of the present invention is to simplify the manufacture of a window.

This object is achieved in the above-mentioned window in that the frame profiles comprise a self-supporting core element of interconnected profile elements, wherein the profile elements are made as molded parts of a plastic foam and wherein the profile elements on at least one surface of a planking from one to the plastic foam of the profile elements different Have material.

The advantage here is that the molding can already be made in the finished version of the profile element, ie that all the recesses for the fittings, etc., can be taken into account in the shaping of the profile element, so that no subsequent machining is required for this, in particular the noisy milling work on the profile element, in which, among other things, also correspondingly much dust accumulates, can be omitted. It is thus possible to be able to produce a window without expensive post-processing. In addition, the use of moldings made of plastic foam on the one hand, the added benefit that it improves the thermal insulation of the window, and on the other hand, the mold filling and thus compliance with low tolerances can be improved. Because the core element and thus the core frame made of it self-supporting can this, this or the entire load, which is caused for example by the glass element, such as a multi-pane insulating glass record. It is thus possible to make the outer and / or inner surface of the window free of static restrictions by simple planking. It is thus possible with the window to produce a variety of differently shaped windows with less different profiles, in addition, the processing cost in the window production can be reduced.

The frame may be formed as a frame or as a sash, whereby the above-mentioned effects in a window can be realized to a greater extent, since thus all the frame parts of a window can be formed according to the invention. The frame is that part of the window on which the sash, which carries the glass element, rests in the closed state.

According to a variant of the window, it is provided that the profile elements are produced by means of molded foams or injection molding. It can thus the accuracy of the profile elements can be improved. In addition, the cycle time for the production of the profile elements can be shortened. In addition, a wider range of standard parts can be produced by a simple tool change.

The plastic foam preferably has a density of at least 80 kg / m ³ . The profile elements thus consist of a very compact foam, whereby the mechanical strength can be improved. In addition, so that the thermal insulation properties of the profile elements can be improved.

It is particularly preferred if the profile elements have a formed corner and a cut-to-length region. It can thus be dispensed with the complex Eckausbildung or the joining of the profile elements in the corners, whereby their assembly is simplified. Due to the ablängbaren area, it is again possible to produce the frame-like core element of the window from a higher number of standard profile elements, which can be responded to customer requests faster.

It can further be provided that within the profile elements at least one tension rod is arranged, whereby the flexural strength and torsional strength of the frame-like core element is improved. By foaming the tension rod whose connection to the profile elements can be improved.

According to another embodiment variant of the window, at least one reinforcing element can be arranged within the profile elements. It is thus created a better mounting option for the various fittings on the profile elements, which in turn is advantageous in that this at least one reinforcing element is foamed, i. is already provided during the production of the profile elements, whereby the integration of the at least one reinforcing element is improved in the respective profile element. On the other hand, the functional reliability of fittings, etc. can be ensured over a longer period of time by the arrangement of the at least one reinforcing element. For example, it can better prevent the loosening or fogging of fittings over a longer period of use.

To improve the compressive strength of the profile elements, it can be provided that the plastic foam has a compression hardness according to DIN 53421 of at least 3 N / mm ² .

Preferably, the plastic foam is made of a thermosetting plastic. It can thus the durability, in particular the temperature resistance of the window can be improved so that it offers less attack for a delay due to the considered over the seasons temperature load.

But it is also possible to produce the plastic foam from a thermoplastic material. It is thus the connection of several profile elements simplified by these can be welded together. In addition, thermoplastic foams are easier to produce by injection molding. In addition, it can also better connectivity of the frame-like core element of the window with other components of the window, such. the planking, be achieved.

It can further be provided that the profile elements are positively connected with each other. For this purpose, the interlocking elements are already taken into account in the shape of the molded part, so that the profile elements in particular a predetermined joining direction for have the assembly. By means of the positive connection of the installation effort can be reduced.

According to a further embodiment of the window can be provided that the plastic foam is fiber-reinforced. Due to the fiber reinforcement, the plastic foam is given a higher strength per se, as a result of which the frame-like core element of the window likewise has a higher mechanical strength.

It can further be provided that in at least one of the profile elements at least one infill is formed for a fitting that is not made by machining. So it will be the receiving chambers for the fittings, such. Door hinges, etc., already considered and produced during the foaming of the profile elements, so that a subsequent processing of the finished profile elements for their training is no longer required.

For a better understanding of the invention, this will be explained in more detail with reference to the following figures.

Fig. 1

ein Fenster in Ansicht von vorne;

Fig. 2

einen Schnitt durch ein Profilelement;

Fig. 3

ein rahmenartiges Kernelement eines Fensters vor dem Verbinden der Profilelemente;

Fig. 4

die Verbindung von zwei Profilelementen.

Each shows in a schematically simplified representation:

Fig. 1

a window in front view;

Fig. 2

a section through a profile element;

Fig. 3

a frame-like core element of a window before joining the profile elements;

Fig. 4

the connection of two profile elements.

By way of introduction, it should be noted that in the differently described embodiments, the same parts are provided with the same reference numerals or the same component names, wherein the disclosures contained in the entire description can be mutatis mutandis to the same parts with the same reference numerals or component names. Also, the location information selected in the description, such as above, below, laterally, etc. related to the immediately described and illustrated figure and are to be transferred to a new position in a change in position.

In Fig. 1 a window 1 is shown in front view and without frame. With front view is meant the view from the outside, if the window 1 is installed normally. The window 1 serves to close a corresponding opening in a wall of a building.

The window 1 comprises a frame-like core element 2 or consists of the frame-like core element 2 (shown in partial section bottom left), which carries a glass element 3 and in which the glass element 3 is arranged.

The glass element 3 is designed as a multi-pane insulating glass with at least two glass panes, as used in windows 1 according to the prior art.

The frame-like core element 2 comprises or consists of interconnected profile elements 4. In the present embodiment, the window 1 comprises four profile elements 4th

Next, the window 1, the usual fittings 5 for rotatable and / or tiltable attachment of the window 1 on the frame, a window handle 6, etc., which will not be discussed here in detail. Reference is made to the relevant prior art.

The core frame formed from the profile elements 4 is a part of the sash, which is known to be attached to the frame of the window 1. The core frame is self-supporting, i. that the core frame receives the entire load of the glass element 3.

It should be mentioned in this context that in the context of the invention, the profile elements 4 can be used for the sash and / or the frame of the window 1. If the window is a fixed glazing, ie a window 1 which can not be opened, its frame can likewise be constructed with the profile elements 4.

On an outer surface 7 of the core elements 2 and / or an inner surface of the core elements 2, a planking 8 (cladding) is provided, which covers the core elements 2 to the outside and / or inside. The outer surface 7 is that surface 7 which faces the building environment. Accordingly, the inner surface is the surface facing the room of the building behind the window 1.

The planking 8 may be applied directly to the outer surface 7 and / or the inner surface. However, there is also the possibility that the planking 8 is fastened partially spaced from the outer surface 7 and / or the inner surface to the core elements 2.

In particular, the parts of the planking extend from a corner region of window 1 to a second corner region of the window 1 first corner area nearest corner area is. However, it can also be provided that this second corner region is the next-but-one corner region, so that therefore the planking 8 is designed as an angle element. The parts of the planking 8 are in particular integrally formed.

It can further be provided that the planking 8 at least partially surrounds an upper side 10 of the window 1 and / or a lower side 11 of the window 1.

The planking 8 may be positively and / or materially and / or non-positively connected to the core elements 2. For example, the planking may be glued to the core elements 2. Likewise, the planking 8 can be screwed or riveted to the core elements 2. It is also possible that the planking 8 is simply plugged or clipped onto the core elements 2. Of course, mixed variants of the positive and / or non-positive and / or non-positive connection are possible.

The planking 8 does not contribute to the load transfer, but serves exclusively the surface design of the window. 1

The planking 8 may be made of different materials, such as metal, plastic, wood, etc. the planking 8 may consist of aluminum profiles or wooden strips or plastic profiles. It is also possible that the planking on the outer surface 7 of the core elements 2 consists of a different material to the material of the planking 8 of the inner surface of the core elements 2 and / or differently colored material. Due to the wide variety of design options, it is not possible to represent all variants at this point.

According to a particular embodiment variant of the window 1, the planking 8 can consist of glass, in particular be formed by the multi-pane insulating glass of the glass element 3. For this purpose, the multi-pane insulating glass can be formed as a so-called stepped glass, in which at least one of the outer glass panes is larger than the other glass panes, so that the at least one larger glass pane covers the core element 2. In this case, it may be advantageous if the at least one glass panel covering the core element 2 is made opaque in the overlapping area, so that the view of the core element 2 is avoided or reduced.

The profile elements 4 are made of a plastic foam. They can be welded together to form the frame-like core element 2.

The profile elements 4 preferably comprise or consist of a thermosetting plastic foam, in particular a polyurethane foam.

But it is also possible that the profile elements 4 comprise a thermoplastic foam or consist of this.

In this case, the profile elements 4 preferably comprise an expanded polystyrene (EPS), an expanded polypropylene (EPP), or consist of one of these plastic foams. There are also more than one of these plastic foams for the production of the profile elements 4 can be used.

According to a preferred embodiment of the window 1, the profile elements 4 comprise or consist of a plastic foam with a density of at least 80 kg / m ³ , in particular of a plastic foam with a density of at least 100 kg / m ³ , preferably of a plastic foam with a density between 100 kg / m ³ and 200 kg / m ³ or from a plastic foam with a density between 100 kg / m ³ and 120 kg / m ³ . It is thus achieved a low material fatigue and a better burglar resistance of the window 1 produced from the profile elements 4.

It is further preferred if the plastic foam has a compressive strength according to DIN 53 421 of at least 3 N / mm ² , in particular a compressive strength according to DIN 53 421 between 5 N / mm ² and 10 N / mm ² . This can be achieved by an appropriate addition of hardeners. In addition or alternatively, the corresponding compression hardness can also be achieved by the corresponding formulation, for example in polyurethane foams by the ratio of the amounts of polyol and isocyanate to each other. Also on the molding pressure, ie the pressure during foaming the compression hardness can be set in addition to or alternatively.

These setting options are known in the art, so that further discussion is unnecessary.

Preferably, a commercial plastic foam is used, as it is available for example from Bayer.

It is also possible that the profile elements 4, i. the plastic foams, over the cross section in the longitudinal direction and / or in the transverse direction to a space weight gradient, ie a Raumgewichtsgradienten have.

The profile elements 4 are produced as molded parts, ie they already have the corresponding profile cross-section during production and that the required recesses 12 for various installations or functional elements or for receiving or arranging the fittings 5, etc., already formed during the molding Be so that so a subsequent machining of the profile elements 4 for the preparation of these recesses 12 is not required. By the profile elements 4 are produced as moldings, the foaming of the raw materials takes place in the mold.

The various internals or functional elements, such as e.g. The fittings 5, etc., can be screwed to the respective profile element 4, glued, or connected in any other suitable manner with the profile element 4.

Preferably, the profile elements 4 are produced by means of molded foams (thermosetting) or injection molding (thermoplastic) as molded foam parts or injection-molded parts.

By way of illustration is in Fig. 2 a possible profile cross section of the profile elements 4 is shown. Of course, the profile elements 4 in the context of the invention but also have a different cross-section.

In the left part of the Fig. 2 the cross section is stepped. There are thus stop surfaces 13 formed for the system to the correspondingly shaped frame. Optionally, at least one groove for receiving a sealing element may be formed in these contact surfaces 13 or in the region of the contact surfaces 13.

The right side of the cross section of the profile element 4 after Fig. 2 is for receiving or for the arrangement of the glass element 3 ( Fig. 1 ) educated. At least one groove 14 may be formed for this purpose. As will be explained in more detail below, however, this region of the cross section may also have a different shape.

In Fig. 3 is the frame-like core element 2 of a window 1 shown before connecting the profile elements 4 with each other. To simplify the Fig. 3 was based on the representation of the recesses 12 ( Fig. 1 ) waived.

How out Fig. 3 can be seen, the profile elements 4 are formed in the preferred embodiment L-shaped (in front view). As a result, a corner 15 of the frame-like core element 2 is already formed with a profile element 4 or with each profile element 4. It can thus be dispensed with the subsequent joining of the profile elements 4 for forming the corners 15. Since the production of a corner joint of the profile elements 4 in the production is more complex than when the profile elements 4 are connected in the course of their longitudinal extent, ie at the end of legs 16, 17 of the L-shaped profile elements 4, so that the production of the frame-like core element 2 can be simplified. In addition, a lower tolerance of the frame-like core element 2 is thus achievable. In addition, this has the advantage, after the planking 8 ( Fig. 1 ) extends continuously from a 15 to at least the next corner 15, that the joint areas of the profile elements 4 is not congruent with the joint areas of the planking 8.

An end region 18 of the profile elements 4 can, as in Fig. 3 is indicated by transverse lines 19, in a predetermined division, which can be determined on the basis of desired standard dimensions for window 1, be formed cut to predefinable places. It is thus possible, the height and the width of the window 1 and the frame-like core elements 2 easily adaptable form. The profile elements 4 may be embodied, for example, at the locations of the transverse lines 15 with a notch, etc.

But it is also possible that the profile element 4 and the profile elements 4 are cut to length on the respective recess in the wall for the window 1, including, if appropriate, the end portion 18 can be formed without these predefined Ablängmaße.

Although not preferred, it is also possible that the profile elements 4 are formed as a straight bar product without the prefabricated corner 15.

It is further possible to perform the profile elements 4 in the corner, so the corners 15, rounded, i. to produce with a rounding. This has the advantage that a circumferential seal can be installed without interruption in the corners.

With the in Fig. 3 illustrated profile elements 4, it is possible, the dimensions of the frame-like core element 2 by means of two fixed points, which are set in along the diagonal of the frame-like core element 4 opposite corners 15, so for example the in Fig. 3 lower left corner 15 and upper right corner 15, to be set. Thus, it is possible that the frame-like core element 2 is made in only one standard size due to the Ablängbarkeit, so that the Vorrätighalten of different sizes of the profile elements 4 can be dispensed with.

If necessary, at least one element (insert) for improving the mechanical properties of the profile elements 4 may be arranged, in particular foamed, in one or more profile elements 4 of the frame-shaped core element 2 of the window 1. For this purpose, this element can be inserted into the injection mold before filling with the foamable plastic material.

This element may, for example, be a tension rod 20, as shown in FIG Fig. 3 is indicated by dashed lines, or a reinforcing element 21, as in Fig. 2 is indicated by dashed lines. The reinforcing element 21 serves for better connection or connection, in particular screwing of the fittings 5, bars, etc. used for the window 1. In particular, these reinforcing elements 21 can be used for metallic elements that are connected to the profile elements 4 of the frame-like core element 2.

Reinforcing elements 21 may be, for example, sleeves, nuts, sheets, metal strips, etc.

Of course, if necessary, several of these elements can be used to improve the mechanical properties of the profile elements 4.

These elements may be made, for example, of a metal, e.g. Steel, or of mineral fibers, in particular glass fibers, basalt fibers, carbon fibers, or of biogenic fibers, such as. Hemp fibers, persist.

Further, these elements may be band-shaped, with a round cross-section, angular cross-section, etc. be formed.

The surface of these elements can be smooth, ribbed, drilled, etc.

It is possible that these elements to improve the mechanical properties of the profile elements 4 have at least one breakthrough or at least one recess, through which or in which the plastic foam protrudes in order to improve the connection of these elements to the plastic foam.

As stated above, the individual profile elements 4 can be welded together to produce the frame-like core element 4. Alternatively or additionally, it is possible that the profile elements 4 are positively connected to each other. For example, the positive connection as in Fig. 4 be formed represented. For this purpose, a profile element 4 may be provided with a slot 22 and the profile element 4 to be connected to this further profile element 4 with a slot 23, so that therefore the positive connection may be formed as a plug connection.

Of course, other forms of positive engagement are possible, for example in the form of holes through which rods or bolts are inserted.

The interlocking elements, that is, for example, the pin 22 and / or the slot 23, can already be mitgeformt in the production of the profile elements 4. If one or more profile elements 4 must or must be cut to length, the respective other form-fitting element, that is, for example, the pin 22 or the slot 23, can be produced in the course of the cut. It is also possible that the end portion 18 of the respective profile element 4 is already prefabricated accordingly, for example provided with corresponding notches, so that the production of the positive-locking element is simplified.

In addition to the formation of the groove 14 ( Fig. 2 ) for the arrangement of the glass element 3, there is also the possibility that the glass element is flush with the outer surfaces 7 (FIG. Fig. 1 ) or the inner surface of the profile elements 4 is arranged. For this purpose, the profile elements 4 may have a corresponding offset, on the surfaces of which the glass element 3 rests and in particular is connected thereto, preferably adhesively bonded.

According to another embodiment of the window 1 can be provided that the plastic foam of the profile elements 4 is fiber-reinforced. As reinforcing fibers, for example, mineral fibers such as e.g. Glass fibers, basalt fibers, carbon fibers, or organic fibers, e.g. Plastic fibers, wood fibers, etc., are used.

The reinforcing fibers may have a length between 0.8 mm and 25 mm.

The proportion of the reinforcing fibers may be between 10% by weight and 50% by weight, in particular between 20% by weight and 30% by weight, based on the entire profile element 4.

The embodiments show possible embodiments of the window 1, which should be noted at this point that also various combinations of the individual embodiments with each other possible.

For the sake of order, it should finally be pointed out that, for a better understanding of the structure of the window 1, this or its components have been shown partially unevenly and / or enlarged and / or reduced in size.

REFERENCE NUMBERS

1

window

2

core element

3

glass element

4

profile element

5

fitting

6

window handle

7

surface

8th

planking

9

arrow

10

top

11

bottom

12

recess

13

stop surface

14

groove

15

corner

16

leg

17

leg

18

end

19

slash

20

tension rod

21

reinforcing element

22

spigot

23

slot

Claims (12)

Window (1) with a frame of interconnected frame profiles, characterized in that the frame profiles comprise a self-supporting core element (2) of interconnected profile elements (4), wherein the profile elements (4) are made as molded parts of a plastic foam and wherein the profile elements (4) on at least one surface (7) have a planking (8) made of a plastic foam of the profile elements (4) different material. Window (1) according to claim 1, characterized in that the frame is designed as a sash or as a frame. Window (1) according to claim 1 or 2, characterized in that the profile elements (4) are produced by means of foam molding or injection molding. Window (1) according to one of claims 1 to 3, characterized in that the plastic foam has a density of at least 80 kg / m ³ . Window (1) according to one of claims 1 to 4, characterized in that the profile elements (4) have a formed corner (15) and a cut-to-length region. Window (1) according to one of claims 1 to 5, characterized in that within the profile elements (4) at least one tie rod (20) is arranged. Window (1) according to one of claims 1 to 6, characterized in that within the profile elements (4) at least one reinforcing element (21) is arranged Window (1) according to one of claims 1 to 7, characterized in that the plastic foam has a compression hardness of at least 3 N / mm ² . Window (1) according to one of claims 1 to 8, characterized in that the plastic foam is made of a thermosetting or thermoplastic material. Window (1) according to one of claims 1 to 9, characterized in that the profile elements (4) are positively connected with each other. Window (1) according to one of claims 1 to 10, characterized in that the plastic foam is fiber-reinforced. Window (1) according to one of claims 1 to 11, characterized in that at least one infill for a fitting (5) is formed in at least one of the profile elements (4), which is not made by machining.

Images