EP2039866A2 - Leaf frame for windows and doors - Google Patents

Abstract

The leaf frame has a filling or glazing (5), an outer side (17) and an inner side (18). A plastic basic profile (2) is provided, which essentially forms the inner side of the frame, and is provided with hollow chambers. The filling or glazing of the inner side is made from a glass strip (4), and the outer side is made from a metal profile (3). The frame of the outer side has a casement projection (15). The outer side built of the metal profile, is put over the casement projection.

Description

Technical area

Windows and doors are increasingly made of plastic hollow sections, in particular made of rigid PVC. The filling or glazing is usually held on the outside by a seal through a glass stop chamber - also called wing flap - and on the inside by a glass bar. In order to achieve the necessary bending and torsional rigidity of the frame, wings for windows and doors must generally be provided with steel stiffening profiles from a frame width and / or height of more than approx. 80 cm. For this purpose, the plastic hollow sections have a central hollow chamber as a stiffening chamber into which the steel reinforcements are inserted and screwed to one of the walls of the plastic hollow profile.

However, the steel reinforcing profiles have a very high thermal conductivity, so that the thermal resistance of the entire window is thereby significantly deteriorated.

State of the art

For example, in the DE 198 35 836 C2 has been proposed to improve the thermal insulation of wings for windows and doors, a stiffener for plastic profiles, consisting of two steel inserts which rest on two opposite sides of the inner profile and which are thermally separated by a plastic insert to use. However, such constructions are expensive and therefore expensive.

From the AT 007125 U1 is already known a wing for a window or a door, however, for larger frame widths and / or heights to remove the wind loads an additional metal stiffening of the hollow chamber of the plastic profile needed because the overall construction without such an additional stiffening too low bending and Torsion stiffness has.

From the DE 10 2005 021 934 A1 a frame is known, which comprises a substantially the inside of the frame forming, a plurality of hollow chambers having basic plastic profile and the outside of the frame forming metal profile. The filling or glazing is held on the inside by a glass stopper chamber of the base profile and on the outside by the metal profile. The metal profile forming the outside has at least one stiffening hollow chamber. The frame can thereby manage without additional metal stiffening profile in one of the hollow chambers of the basic profile.

This frame construction has proven itself in practice. The disadvantage, however, is that a special external rotating wing profile must be used, which is not available for each profile system. In addition, in some outside turning sash profiles, which according to the DE 10 2005 021 934 A1 could be used, the drainage to the outside problematic when the Glasfalzbereich is tilted in mirror-inverted installation of the sash profile inwards. Furthermore, certain steps in the manufacture of these windows, in particular the insertion of the glazing, deviate from the usual operation in standard windows, so that a mixed processing of standard windows and windows according to the DE 10 2005 021 934 A1 leads to more complicated work processes.

task

Object of the present invention is to provide a profile system and a window that does not have these disadvantages. Further objects result from the advantages of the teaching according to the invention over the prior art.

Presentation of the invention

The inventive system is based on a standard sash profile as a basic profile for the sash and a standard frame profile, which - in contrast to DE 10 2005 021 934 A1 - Installed in the usual arrangement to each other become. That is, an inside opening sash is used in which the sash override of the sash frame profile is outside and the glazing bead receptacle groove is inside. The stiffening metal profile used according to the invention is thus slipped over the outer wing flap and preferably locked so with this, that it has a certain displaceability in the longitudinal extent of the profile to accommodate temperature-induced thermal expansion and shrinkage of the aluminum or the PVC profile, without that there is a bounce or bending of the entire system by the bimetallic effect.

The stiffening metal profiles used according to the invention can easily be painted or anodized, even in dark colors. Although they heat up relatively strong during exposure to sunlight, the stiffening effect nevertheless remains almost the same, since the modulus of the metals usually used, in particular aluminum, is relatively little temperature-dependent, in contrast to PVC, whose stiffness is above about 60 Degree drops sharply. Due to the fact that primarily the stiffening metal profile heats up when exposed to sunlight, this aluminum profile expands considerably more than the basic PVC profile.

According to a preferred embodiment of the invention, the attachment of the aluminum stiffening profile in the height direction of the sash profile - parallel to the glazing level - with a clearance of 0.2 to 2 mm, preferably from 0.5 to 1.2 mm, to thermal expansions in this Compensate direction. When bending stress in the direction of the depth of the wing, ie in particular when the window is loaded by wind loads, aluminum profile according to the invention, however, stiffens the overall construction so strong that approximately the values of a plastic profile are achieved with conventional steel reinforcement. The frame according to the invention can thereby make do without additional metallic stiffening profile in one of the hollow chambers of the plastic base profile.

The area moments of inertia I _X and I _{y of} the metal stiffening profile are each preferably more than 4 cm ⁴ , preferably more than 5 cm ^{4 in} each case, the area moment of inertia in the X direction being more decisive. Depending on the shape of the metal stiffening profile, the wall thicknesses of the individual walls and webs can be designed differently in order to obtain optimum rigidity in the desired direction. Particularly preferred is the area moment of inertia in the X direction, ie in the direction perpendicular to the glazing, approximately as high or higher than in the Y direction, ie in the direction parallel to the glazing. Preferably, the ratio I _X / I _y > 0.7, in particular> 0.9 applies.

Preferably, a standard sash profile is used for the sash, which has an outer sash overlap with glazing gasket groove. However, the glazing gasket groove is not needed when using this sash in combination with the metal stiffening profile. Rather, in this embodiment, the outer glazing gasket is inserted directly into a gasket receiving groove of the metal stiffening profile. Preferably, the sealing grooves of the sash of the wing frame and the metal stiffening profile are compatible with each other, so that the same glazing gasket can be used both in the sash and in metal stiffening profile. The use of a standard sash ensures that as few components as possible can be used to produce standard sashes without external metal bracing profiles as well as sash frames using this metal bracing profile.

According to a preferred embodiment of the invention, the invention relates to a system for the production of windows and doors, comprising at least one PVC window frame, a sash profile with external PVC wing flap, a metal stiffening profile, which are placed over the wing flap and connected to this teilschubfest can, as well as at least one glass strip. Preferably, this system comprises at least two glass strips of different Height, so that with this system both wings with and without aluminum stiffening profile can be produced.

Advantageously, the sash profile on its outer side has a wall which is perpendicular, d. H. parallel to the glazing plane, and in the upper area a sloping wall towards the glazing. The metal stiffening profile is formed on its side facing the wing flap with a corresponding inner contour, so that it completely and tightly encloses the wing flap both in the area of the outer visible surface of the wing flap as well as in the oblique upper region in the inserted state. However, the upper contour of the stiffening metal profile, which tapers obliquely onto the glazing, is preferably designed to be longer than the depth of the sash overlap, so that-in the oblique design of this limb-the glazing glazing becomes larger than in the case of a standard version of the sash. Accordingly, a higher glass strip is preferably used on the inside, in order to achieve an approximately equally high Glaseinstand here. Preferably, the Glaseinstand is about 5-10 mm higher than in the corresponding version of the window without metal stiffening profile. The metal stiffening profile is preferably placed with a rotary / tilting movement on the wing flap of the sash profile and preferably locked with this. The metal stiffening profile has preferably at the end of the vertical outer wall on a recessed nose, which engages around the lower edge of the outer wall of the sash profile.

The standard sash profile used according to the invention is preferably extruded from PVC-U and, in the glazing rebate area preferably near the sash overlap, has a depression for better drainage of the sash rebate area and / or an outwardly inclined glazing rebate area.

The glazing gasket in the metal stiffening profile rests directly against the glazing. This ensures that the forces are introduced by wind loads directly into the stiffening profile and intercepted by this.

The sash according to the invention has a significantly improved thermal insulation. On the one hand, this is due to the omission of a steel reinforcement in the main chamber or reinforcing chamber of the PVC main profile, but on the other hand reinforced by the optimized position of the glazing by the increased distance between the outside of the glazing and the outer wall of the metal stiffening profile and the opposite a standard sash enlarged glass recess. In addition, the reinforcement chamber of the wing frame main profile can be filled with foam or filled with thermal insulation material without a steel reinforcement makes the thermal insulation of this chamber again canceled. According to a preferred embodiment of the invention, the area below the glazing gasket of the metal stiffening profile is additionally insulated with foam insulating material, which in particular reduces heat transmission by radiation.

In principle, the metal stiffening profile according to the invention can be used with different overall depths of the plastic airfoil. However, the nominal depth of this plastic airfoil is particularly preferably at least 70 mm, preferably at least 80 mm.

To produce a wing according to the invention, according to a particularly preferred embodiment of the invention, first of all four mitred plastic sash profiles are welded in a manner known per se to form a sash. Subsequently, four preferably blunt cut aluminum stiffening profiles are placed on the four outer wing flashovers and locked with them. According to a preferred embodiment of the invention, the two vertically extending aluminum stiffening profiles are first placed, which are previously processed in the corner by a milling. Subsequently, the two horizontal aluminum stiffening profiles are used. Preference is given to the insertion of the aluminum stiffening profiles on the wing flap of the frame profiles already the glazing gaskets in the gasket-receiving groove of the aluminum stiffening profiles used. After slipping on all four aluminum stiffening profiles, the glazing is done in a conventional manner by inserting the multiple glazing in the casement, blocking and inserting the inner glazing beads. Thus, apart from the intermediate step of setting up the aluminum stiffening profiles, the production of the casement is identical to the production of a conventional wing, so that the manufacture of the casement frames according to the invention can be carried out without problems in conventional automated installations.

Short description of the drawing

Fig. 1

einen Querschnitt durch ein erfindungsgemäßes Fenster mit Dreifachverglasung;

Fig. 2

einen Querschnitt durch das Alu-Versteifungsprofil;

Fig. 3-6

das Aufstecken des Alu-Versteifungsprofils auf das Flügelrahmenprofil;

Fig. 7

einen Querschnitt durch ein erfindungsgemäßes Fenster mit Doppelverglasung;

Fig. 8

einen Querschnitt durch ein Standard-Fenster mit Doppelverglasung (Stand der Technik).

The invention will be explained in more detail with reference to an embodiment and the drawing. It shows:

Fig. 1

a cross section through a window according to the invention with triple glazing;

Fig. 2

a cross section through the aluminum stiffening profile;

Fig. 3-6

the attachment of the aluminum stiffening profile on the sash profile;

Fig. 7

a cross section through an inventive window with double glazing;

Fig. 8

a cross section through a standard double-glazed window (prior art).

In Fig. 1 is a cross section through an inventive window with window frame profile 1, sash profile 2, aluminum stiffening profile 3, and glazing bead 4 is shown. Frame profile 1 and sash profile 2 are made of PVC-U with a depth of 88 mm. In the fold region of the frame, the center seal 10 is arranged to the inside 18, the seal is made on the inner stop seal 11th

The stiffening profile 3 made of aluminum consists essentially of the straight outer viewing surface 19 and the slope 20, at the end of the seal-receiving groove 7 is arranged to receive the glazing gasket 6. From the slope 20 slightly angled jumps the web 21, which serves for additional stiffening of the profile. Between the bridge 21 and the Seal receiving groove 7 is the retaining groove 22 for receiving a foam strip 12 for thermal insulation against the glazing 5. As out Fig. 1 Furthermore, the inner leg or web (21) of the metal profile (3) - viewed in cross section - extends below the lower edge of the glazing (5). This contributes to the high area moment of inertia.

As in the Fig. 3 to 6 To recognize the aluminum stiffening profile 3 is slipped from the Flügelfalzseite over the wing flap 15 of the sash profile 2 while tilted or rotated counterclockwise until the nose 23 of the aluminum stiffening profile 3 engages behind the edge 24 of the sash profile 2 ( Fig. 5 ).

Due to the angled slope 20 of the aluminum stiffening profile 3 and the greater depth of the aluminum stiffening profile 3 in comparison to the wing flap 15 of the Glaseinstand the glazing 5 is greater than a standard wing, in which the glazing gasket 6 inserted into the seal-receiving groove 8 would. Accordingly, the height of the glazing bar 4 is 7 mm higher than a standard glazing bar (4 "in Fig. 8 ).

As in Fig. 6 represented by reference numeral 14, the aluminum stiffening profile 3 in the height direction, a game of 0.8 mm relative to the sash profile 2. As a result, thermal expansion of the PVC plastic profile can be absorbed. The tolerances of the aluminum stiffening profile 3 and the sash profile 2 are dimensioned so that a relatively close, frictional connection between these profiles is formed, however, with greater expansion of one of the two profiles by heat or cold displacement in the longitudinal direction of the profile allows (partially thrust Connection). As a result, on the one hand prevents thermal expansion caused by the bimetallic effect, a curvature of the profiles, on the other hand, the stiffening effect of the aluminum stiffening profile 3 is ensured.

The area moments of inertia I _X and I _{y of} the aluminum stiffening profile 3 are I _X = 5.2 cm ⁴ and I _y = 5.1 cm ⁴ .

In Fig. 7 an embodiment of the invention is shown in section, in which instead of a triple glazing 5, as shown in Fig. 1 was used, a double glazing 5 'is used. Accordingly, the glazing bar 4 ', which is snapped into the inner Glasleistennut 16, made slightly deeper. In Fig. 7 It is easy to see that a double glazing is arranged very centrally in the sash frame and thus enables an optimal isothermal course.

In Fig. 8 is a cross section of a standard window with frame 1 and sash 2 shown, in contrast to Fig. 1 and Fig. 7 the sash profile without outer aluminum stiffening profile 3 was made. Instead of the stiffening by an aluminum stiffening profile 3, which is placed over the wing flap 15, in this window according to the prior art, a steel reinforcement 25 in the reinforcing chamber 13 of the sash profile 2 is used.

A comparison between FIGS. 7 and 8 shows that with the same glazing thickness according to the invention using the aluminum stiffening profile 3 on the window outer side 17 in cross-section closer to the center of the profile installation is carried out as in a standard window according to Fig. 8 ,

In Fig. 1 and in Fig. 7 is also the frame profile 1 additionally provided with an aluminum shell 9, as it is known in principle from the prior art. However, this type of aluminum shell causes only a very low degree of stiffening, in particular in the X direction, which would be unsuitable for the removal of wind loads in the case of a wing profile.

Legend

1

Frame profile

2

Casement profile

3

Aluminum reinforcing profile

4, 4 ', 4 "

glazing bead

5, 5 '

glazing

6

glazing gasket

7

Seal groove

8th

Seal groove

9

Aluminum shell-frame

10

Center seal

11

Inner gland gasket

12

insulation

13

amplification chamber

14

game

15

Wing flap

16

glass-strip groove

17

outside

18

inside

19

Outdoor viewing area

20

slope

21

web

22

Keeping insulation

23

nose

24

edge

25

steel reinforcement

Claims (3)

Frame for a window or door, with - a filling or glazing (5), - Wherein the frame has an outer side (17) and an inner side (18) and - In essence, the inner side (18) of the frame forming, a plurality of hollow chambers (5, 19) exhibiting basic profile (2) made of plastic and a metal profile (3) forming the outside (17) of the frame, - Wherein the filling or glazing (5) on the inside (18) of a glass strip (4) and on the outside (17) of the metal profile (3) is held, - wherein the frame has a wing flap (15) on the outside, characterized in that the outer profile (13) forming metal profile (3) is slipped over the wing flap. Frame according to Claim 1, characterized in that the metal profile (3) forming the outer side (13) has at least one outer limb completely covering the outside of the base profile (2) and at least one further between the wing overlap (15) of the base profile (2). and the filling or glazing (5) extending inner leg 21 has. Frame according to claim 2, characterized in that the inner leg (21) of the metal profile (3) - viewed in cross section - extends below the lower edge of the filling or glazing (5).

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