EP1877640B1 - Frame for a window or a door - Google Patents

Abstract

Disclosed is a frame comprising a plastic basic profile (2, 2a) which essentially forms the inside (14) of the frame and is provided with several hollow chambers (5, 19), and a metal profile (3) that forms the outside (13) of the frame. The filling or glazing (12, 12a) is retained by a glass contacting chamber (8) of the basic profile (2, 2a) on the inside (14) while being retained by the metal profile (3) on the outside (13). The metal profile (3) forming the outside (13) encompasses at least one stiffening hollow chamber (4, 4a) such that the frame dispenses with the need for an additional metallic profiled reinforcement in one of the hollow chambers (5, 19) of the basic profile (2, 2a).

Description

The invention relates to a frame for a window or a door, in particular a sash, with a filling or glazing.

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 via a seal by a glass stopper chamber 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 complicated and therefore expensive.

From the AT 007125 U1 is already a generic wing for a window or a door known, however, requires an additional metal stiffening of the hollow chamber of the plastic profile with larger frame widths and / or heights because the overall construction without such additional stiffening would have too low a bending and torsional rigidity.

Also in the DE 77 32 328 U a metal stiffening of the hollow chamber is needed.

task

The object of the present invention is to provide a frame for a window or a door which avoids these disadvantages.

Presentation of the invention

The object is achieved by a frame, in particular a sash, for a window or a door with the features of claim 1, preferably in conjunction with one or more of the features of the subclaims.

As a frame in the context of this invention, in particular casement or frame with fixed glazing or filling come into question.

The invention is based essentially on the recognition that an outboard metal profile, in particular an aluminum profile, on the one hand with the plastic base profile in particular "partial thrust" is connected and is supported directly on the glazing or filling, and additionally has an outer hollow chamber, a has such high rigidity that the frame thus constructed even with dimensions in the frame width and / or height of much more than 0.9 m, especially more than 1.5 m, no additional steel reinforcement in one of the hollow chambers of the plastic base profile more needed. At the same time, the hollow chamber of the metal profile deteriorates the heat transfer resistance of the entire window very little, since the hollow chamber of the metal profile is located on the window outside, while the entire basic profile of plastic forms the actual thermal insulation.

The outer metal profile is preferably made of an aluminum alloy. Such aluminum profiles are relatively inexpensive to manufacture. The fact that this metal profile - on a known seal - directly on supported by the glazing or filling of the frame, bending and torsional forces can be absorbed to a high degree, without leading to a higher deflection of the frame. According to a particularly preferred embodiment of the invention, the metal profiles used according to the invention are locked to the base profile made of plastic, wherein the latching connection can transmit forces introduced by bending stress on the one hand, and a slight displacement of the two components in the longitudinal direction relative to one another, in particular with respect to thermally induced shear stresses. This avoids that caused by different thermal expansion of the metal profile and the plastic base profile excessive stresses in the finished frame. This compound can also be referred to as "partial thrust resistant".

The metal profile preferably has a connecting leg following the hollow chamber, which covers the outside of the plastic base profile.

Particularly preferably, the plastic base profiles are cut in a conventional manner in the corner mitred and welded together, while the metal profiles abut each other in the corner blunt. As a result, thermal expansions can be intercepted without this would interfere with the miter or corner aesthetics.

The front edge exposed in the corner openings of the abutting metal profiles are preferably closed by caps, the caps have according to a particularly preferred embodiment, an additional connecting leg, which adjoins the connecting leg of the adjacent metal profile.

The metal profile used according to the invention has at least one, but possibly also a plurality of completely closed hollow chambers. According to a particularly preferred embodiment of the invention, at least one hollow chamber of the metal profile is completely outside the base profile, ie - viewed in cross section - completely outside the outer wall of the plastic base profile. As a result, an optimal rigidity is achieved without significantly affecting the thermal insulation.

By providing a circumferentially closed hollow chamber in the metal profile used according to the invention, a sufficient torsional stiffness of the frame can be ensured without having to additionally stiffen the plastic base profiles with steel reinforcements. The fact that it is possible to dispense with the use of such steel reinforcements, resulting in the elimination of this steel reinforcement in the plastic base profiles much better thermal insulation values and a reduced installation effort for the frame. Surprisingly, it has been shown that the rigidity of the window according to the invention, in particular the torsional rigidity, can be increased by a factor of ten over the rigidity of conventional plastic windows with integrated steel reinforcements. In addition, the soundproofing values of the frame are improved by providing the hollow chamber, whereby a secure weather protection for the plastic profiles and a uniform appearance for the outside of the wing are ensured by the provision of the connecting legs covering the outside of the plastic base profile.

A particularly secure hold of the metal profile on the base profile results when the metal profile rests at least with the connecting leg on the plastic base profile and engages with a longitudinal ridge in a formed by the plastic base profile in the region of an inner peripheral surface longitudinal snap-like manner. This measure can be ensured in a secure anchoring of the glazing in the context of low installation costs. With this type of locking not only normal forces can be removed from the metal profile for glazing on the casement out, but also a connection between the metal profile and base profile is guaranteed, which allows a safe removal of torsional forces of the metal profiles on the plastic base profiles of the wing. Another significant advantage of such a wing design is that a "bimetallic effect" between the metal profile and base profile hardly occurs because the metal profile in Profile longitudinal direction in the longitudinal groove relative to the plastic base profile can expand or contract, but it is always safely anchored to the plastic base profile and despite the displaceability receives moments and thus acts stiffening.

According to a particularly preferred embodiment of the invention, the central main chamber of the base profile is additionally thermally insulated by a foam.

In order to prevent removal of the metal profiles from the outside of the window (burglar resistance), an additional fixation of the metal profiles to the plastic base profiles by screwing or gluing can be provided. This is preferably done only in the middle of the profiles in order to ensure an expansion or slidability on both sides.

• über eine übliche Dichtung - durch eine feste GlasanschlagsKammer gehalten wird. Durch den erfindungsgemäßen Einsatz des außenliegenden Metallprofils, das zugleich die Funktion einer Glasleiste übernimmt, ist der Einsatz einer Glasleiste auch auf der Innenseite nicht notwendig.

Although it is possible to keep from the inside the glazing or filling of the wing according to the invention by means of a glass strip, but it is preferred if these from the inside

• via a standard gasket - held by a fixed glass stopper chamber. Due to the inventive use of the outer metal profile, which also assumes the function of a glass bar, the use of a glass bar on the inside is not necessary.

Short description of the drawing

Fig. 1

einen Querschnitt durch einen erfindungsgemäßen Flügelrahmen (Anschlagdichtungssystem)

Fig. 2

einen Querschnitt durch einen Mittelbereich eines Stulpfensters.

Fig. 3

eine Explosionsdarstellung eines erfindungsgemäßen Flügelausschnittes in Schrägansicht und

Fig. 4

zwei benachbarte Metallprofile mit in die Öffnung der Hohlkammer eingesteckter Abdeckkappe in Vorderansicht

Fig. 5

zwei benachbarte Metallprofile mit in die Öffnung der Hohlkammer eingesteckter Abdeckkappe in einer Ansicht von unten.

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 sash frame according to the invention (stop sealing system)

Fig. 2

a cross section through a central region of a Stulfensters.

Fig. 3

an exploded view of a wing cutout according to the invention in an oblique view and

Fig. 4

two adjacent metal profiles with inserted into the opening of the hollow chamber cap in front view

Fig. 5

two adjacent metal profiles with inserted into the opening of the hollow chamber cap in a view from below.

Best way to carry out the invention

In Fig. 1 shows the cross-section of a wing 1 of a semi-offset window with the dimensions 1.2 mx 1.7 m. It consists essentially of the basic profile 2 made of rigid PVC, the metal profile 3 made of aluminum, which forms the outside 13 of the window, and the glazing 12. The frame 15 is shown only for the sake of completeness, but does not belong to the invention. The outer side 13 of the window is denoted by the reference numeral 13, the room inside with 14.

The basic profile 2 is known in this form per se, it is a profile for an outwardly rotating wing, but has no additional metal reinforcement profile in contrast to known solutions in the central hollow chamber 5. Instead, the central hollow chamber 5 is additionally insulated with the foam 24. The bending and torsional rigidity of the window is largely contributed by the metal profile 3, wherein in particular the upstream hollow chamber 4 of the metal profile 3 contributes significantly to the rigidity. This upstream hollow chamber 4 is located completely outside the base profile 2. The metal profile 3 is made of aluminum and is latched by means of the latching lug 7 in the locking groove 18 of the base section 2. The locking lug 7 is stabilized by a transverse web and forms with this an additional small hollow chamber. 6

On the one hand, bending and torsional forces or moments are transmitted to the basic profile 2 by means of this latching connection, while on the other hand, with different thermal expansion of the basic profile 2 and metal profile 3, a certain displacement the two profiles 2, 3 in the longitudinal direction is possible. The locking connection transmits thrust forces to a certain extent, but primarily bending and torsional forces (partially thrust-resistant connection).

Because the metal profile 3 is supported directly above the seal 9 on the glazing 12, the rigidity of the wing 1 is further increased. From the inner side 14, the glazing 12 is held over the seal 11 by the glass stopper chamber 8 of the basic profile 2.

In Fig. 1 Furthermore, the known blocking of the glazing 12 via glazing blocks 17 and the block bridge 16 in the sash frame is shown.

In Fig. 2 the central area of a Stulpflügelfensters with the wings 22 and the ventilation wing 23 is shown in cross section. The aerofoil 22 corresponds exactly to the wing 1 in Fig. 1 , only the ventilation wing 23 additionally has the forend profile 19, consisting of the aluminum shell 20 and the plastic profile 21, on. This in Fig. 2 illustrated embodiment of a Stulplösung is flush, ie, the outer contours of the chambers 4 of the pusher 22, the aluminum shell 20 of the cuff profile 19 and the hollow chamber 4a of the ventilation blade 23 lie in a plane.

As the drawing can be seen, and the frame 15 can be covered with a customized metal profile, which engages over the connecting leg 26 of the metal profile 3 in the closed position of the window or the door, so that the metal profile 3 in the closed position of the wing also not by force can be released from the snap closure.

In Fig.1 It can be seen that in the area between the metal profile 3 and the metal profile 3 facing outer wall of the plastic base profile 2, an exemption or spacing is provided which a limited resilient deflection of the hollow chamber 4 facing leg of the longitudinal groove 18 when attaching the metal section 3 on the plastic base profile 2 allows.

As in particular the Fig. 3 to 5 can be removed, adjacent metal profiles 3 in the corner blunt abutting on the associated basic profiles 2, wherein the frontally exposed openings - the hollow chambers 4 - the hollow profile cover caps 27 are assigned, which are used on the one hand in the hollow chambers 4 - thus the hollow chamber 4 frontally Close - and on the other hand have a the outside of the base profile 2 covering and adjacent to the base profile 2 connecting leg 31, which adjoins the connecting legs 26 of adjacent metal profiles 3.

In Fig. 3 is a milling 29 of the groove 18 of the plastic base profile 2 as well as on the right cutting surface of the plastic base profile 2 a further milling 30 parallel to the outer wall of the plastic base profile 2 can be seen. These mills 29, 30 are used for dewatering or ventilation of the Glasfalzbereichs 25th

In the in the Fig. 1 to 5 illustrated embodiment, a plastic base profile 2, 2a was used, which is actually in an existing profile system for a so-called out-rotating wing - as is common, for example, in the UK - is used. In the embodiment according to the invention, however, it is used turning inside. The use of an externally rotating blade often provided anyway in an existing profile system for the purpose according to the invention is advantageous insofar as it does not require an additional extrusion tool for a special airfoil. However, this has the disadvantage that the drainage to the outside may not be solved completely satisfactory under certain circumstances. Alternatively, therefore, a special airfoil (not shown in the figures) may be provided which has an outwardly chamfered glass rebate area and thus allows better drainage to the outside.

Legend

1

wing

2, 2a

basic profile

3

metal profile

4, 4a

hollow

5, 5a

hollow

6

hollow

7

locking lug

8th

Glass stop chamber

9

poetry

10

-

11

poetry

12, 12a

glazing

13

outside

14

inside

15

frame

16

Glazing bridge

17

glazing block

18

groove

19

sash profile

20

aluminum dish

21

Plastic profile

22

traffic leaf

23

ventlight

24

foam

25

glazing rebate

26

connecting leg

27

cap

28

wall

29

milling

30

milling

31

connecting leg

Claims (9)

1. Frame for a window or a door, with

   - a filling or glazing (12, 12a),

   - wherein the frame has an outside and an inside (14), and

   - essentially a plastic basic profile (2, 2a) which forms the inside (14) of the frame and has a plurality of hollow chambers (5, 19), and

   - a metal profile (3) which forms the outside (13) of the frame,

   - wherein the filling or glazing (12, 12a) is retained on the inside (14) by a glass strip or a glass abutment chamber (8) of the basic profile (2, 2a) and on the outside (13) by the metal profile (3),

   characterized in that

   - the frame does not have any additional metallic reinforcing profile in one of the hollow chambers (5, 19) of the basic profile (2, 2a),

   - the metal profile (3) which forms the outside (13) has at least one stiffening hollow chamber (4, 4a), and

   - the frame has a frame width and/or height of more than 0.9 m.
2. Frame according to Claim 1, characterized in that the frame has a frame width and/or height of more than 1.5 m.
3. Frame according to Claim 1 or 2, characterized in that the plastic basic profile (2, 2a) and the metal profile (3) are latched to each other to form a partially shear-transmitting connection.
4. Frame according to one of Claims 1 to 3, characterized in that the basic profiles (2, 2a) are mitred in the corner region and welded to each other, and the metal profiles (3) abut in the corner region.
5. Frame according to one of Claims 1 to 4, characterized in that the metal profiles (3) are composed of an aluminium alloy.
6. Frame according to one of Claims 1 to 5, characterized in that at least one hollow chamber (4, 4a) of the metal profile (3) is arranged completely outside the basic profile (2, 2a).
7. Frame according to one of Claims 1 to 6, characterized in that the metal profile (3) can be plugged onto the basic profile (2, 2a) essentially parallel to the plane of the frame in the manner of a snap fastener.
8. Frame according to one of Claims 1 to 7, characterized in that the metal profile (3) has, after the hollow chambers (4, 4a), a connecting limb (26) which covers the outside of the basic profile (2, 2a).
9. Frame according to Claims 4 and 8, characterized in that the openings of the abutting metal profiles (3), which openings lie exposed on the end side in the corner region, are closed by covering caps (27), the covering caps (27) having an additional connecting limb (31) which adjoins the connecting limb (26) of the adjacent metal profile (3).

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