EP4112863B1 - Composite frame for a window or door - Google Patents

Description

The invention relates to a composite frame for a window or a door with a base frame made of plastic profiles welded together in the miter area with attached metal profiles.

Technical area

Plastic has become established as a material for frame profiles for the production of windows and doors in many markets due to the efficient processing and longevity of the products. Plastic profiles are generally cut with a miter and welded together in the miter area to form a frame. At least for larger processors, the production of window frames and sash frames from plastic profiles is usually carried out on complex production lines in which the individual work steps are carried out one after the other. In order to enable efficient production, none of the individual work steps must last significantly longer than other work steps, otherwise the entire production line would have to be operated correspondingly slower.

The use of facing shells or frames made of metal profiles and in particular aluminum profiles is generally known for both wooden and plastic windows. The covering of plastic profiles with aluminum facing shells or frames is primarily done for aesthetic reasons, whereby the aluminum facing shells or frames can be anodized, painted or otherwise coated in different colors.

In this application, the term attachment shells refers to individual attachment profiles which - without being connected to one another in the corner or miter area - are placed individually on the legs of a base frame and connected to it.

In this application, prefabricated frames made of attachment profiles are referred to as attachment frames, which are connected to one another in the corner or miter area to form a solid attachment frame before being connected to or placed on a base frame. The corner connection can be made, for example, using special corner brackets, as shown in the DE 100 08 037 B4 , the DE 88 08 313 U1 or the EP 1 914 375 B1 are known, or in particularly high-quality versions can be done by welding in the miter area.

State of the art

Out of EP 2749724 A1 A fire protection window and a fire protection door are known, in which a base body consists of two plastic profiles, which are connected to one another via a central metal profile. One plastic profile is connected to the inner shell, the other plastic profile to the outer shell.

Plastic frames for a window or door with outer individual attachment shells that are not connected to one another before being placed on the base frame are, for example, from the EP 1 877 640 B1 or the DE 100 02 658 A1 known.

In this case, an attachment frame or an attachment shell is connected to a plastic frame, the plastic frame consisting of four plastic profiles cut to a miter and welded together in the miter area to form a frame.

It should be taken into account here that the profile height of the frame profiles also depends on various boundary conditions. In this context, profile height means the extent of the plastic profile in the direction of the glass plane. For example, heavy and/or large window panes require more massive sash frames than light and small window panes. Door frames containing a locking system must be wider than those that match the window and door system Window frames and therefore require larger profile heights. Accordingly, there are wider and narrower profiles in window and door systems, which leads to correspondingly increased tooling, manufacturing and storage costs as well as the associated additional costs. Particularly worth mentioning here is the effort required for a PVC extrusion tool.

Task

The object of the present invention is therefore to provide a generic composite frame for a window or door in which a wide range of variants can be covered using as few basic elements as possible.

Presentation of the invention

The invention solves this problem with a composite profile for a window or door, which comprises a plastic base profile, an outer metal attachment profile and an inner attachment metal profile. Here, the attachment metal profiles and the plastic base profile each have means which together form a locking function, so that the attachment metal profiles and the plastic base profile can be connected to one another by the locking function. According to the invention, the plastic base profile consists of several plastic part profiles, which are firmly connected to one another by means of the locking functions via the inner and outer attachment metal profiles. Here, each of the plastic part profiles is connected to both the outer attachment metal profile and the inner attachment metal profile.

The plastic part profiles are in one piece. In practice, this is usually achieved by extruding the profiles in one piece, so that they do not have to be welded, locked, screwed or otherwise assembled into a unit from individual parts.

As a result, several plastic part profiles form the basic plastic profile, the stability of which is ensured via the locking connections. The metal attachment profiles on both sides also cover the multiple parts, so that only one unit is visible to the outside.

Advantageous refinements result from the features of the dependent claims.

According to a preferred embodiment of the invention, plastic part profiles are connected to one another by means of a coupling profile. The plastic part profiles therefore already form a solid unit. This unit is further stabilized by the side metal attachment profiles. The plastic part profiles and the coupling profile preferably each have means which together form a locking function.

According to a further preferred embodiment of the invention, the plastic part profiles have the same profile width. It is particularly advantageous if the plastic part profiles are identical, as the number of items required is then kept low.

According to a further preferred embodiment of the invention, the attachment metal profiles have the same height as the plastic base profile. This means that the composite profile acts as a unit inside and out. In order to cover the plastic base profile, one or both metal attachment profiles can be a little longer.

On the sash frame, the outer metal attachment profile can protrude upwards over the plastic base profile and can optionally be used to attach the glazing. The inner metal attachment profile can protrude downwards over the plastic base profile and in the case of a complete window, part of the frame extends beyond.

In the case of a window frame, the outer metal attachment profile can protrude upwards over the plastic base profile and, in the case of a complete window, cover part of the sash frame.

Seals can be attached to the overlaps.

The description in this application assumes profiles that are located at the foot of a window in the installation position described. For the profiles that are located on the side and top of a complete window, the geographical references must be adjusted accordingly. For example, at the top edge of a window, the frame is above the sash frame. On the sides of a window or door, the frame is on the outside and the sash frame is on the inside.

A method according to the invention for producing a composite profile according to the invention provides that the plastic part profiles are placed next to one another and preferably connected to one another by means of a coupling profile. Then the plastic part profiles are connected on both sides using the metal attachment profiles. Alternatively, both attachment metal profiles are placed either at the same time or one after the other.

According to a preferred embodiment of the method according to the invention, the composite profiles are portioned into four pieces each and these four pieces are connected to one another.

Short description of the drawing

Fig. 1

einen Querschnitt eines Flügelrahmenprofils mit Vorsatzmetallprofilen mit einem einteiligen Kunststoffprofil als Einzelteile;

Fig. 2

einen Querschnitt eines Blendrahmenprofils mit Vorsatzmetallprofilen mit einem einteiligen Kunststoffprofil als Einzelteile;

Fig. 3

den Querschnitt eines Flügelrahmenprofils mit Vorsatzmetallprofilen mit einem einteiligen Kunststoffprofil aus Figur 1 zu Beginn der Herstellung des Verbundprofils;

Fig. 4

den Querschnitt eines Blendrahmenprofils mit Vorsatzmetallprofilen mit einem einteiligen Kunststoffprofil aus Figur 2 zu Beginn der Herstellung des Verbundprofils;

Fig. 5

den Querschnitt eines Flügelrahmenprofils mit Vorsatzmetallprofilen mit einem einteiligen Kunststoffprofil aus Figur 1 und 3 nach dem Einrasten;

Fig. 6

den Querschnitt eines Blendrahmenprofils mit Vorsatzmetallprofilen mit einem einteiligen Kunststoffprofil aus Figur 2 und 4 nach dem Einrasten;

Fig. 7

den Querschnitt eines Flügelrahmenprofils mit Vorsatzmetallprofilen mit einem einteiligen Kunststoffprofil aus Figur 1, 3 und 5 nach dem Einrasten mit einer Glashalteleiste;

Fig. 8

den Querschnitt eines Blendrahmenprofils mit Vorsatzmetallprofilen mit einem einteiligen Kunststoffprofil aus Figur 2, 4 und 6 nach dem Einrasten mit einem Schließteil;

Fig. 9

den Querschnitt eines Flügelrahmenprofils ohne Vorsatzmetallprofilen mit einem zweiteiligen Kunststoffprofil;

Fig. 10

den Querschnitt des Flügelrahmenprofils mit zweiteiligem Kunststoffprofil aus Figur 9 mit Vorsatzmetallprofilen vor dem Einrasten;

Fig. 11

den Querschnitt eines Flügelrahmenprofils mit einem zweiteiligen Kunststoffprofil mit Vorsatzmetallprofilen aus den Figur 9 und 10 nach dem Einrasten und

Fig. 12

den Querschnitt eines Blendrahmenprofils mit einem zweiteiligen Kunststoffprofil mit Vorsatzmetallprofilen nach dem Einrasten.

The invention is explained in more detail below using exemplary embodiments and the drawing. It shows:

Fig. 1

a cross section of a sash frame profile with attachment metal profiles with a one-piece plastic profile as individual parts;

Fig. 2

a cross section of a frame profile with attachment metal profiles with a one-piece plastic profile as individual parts;

Fig. 3

the cross section of a sash frame profile with metal attachment profiles with a one-piece plastic profile Figure 1 at the beginning of the production of the composite profile;

Fig. 4

the cross section of a frame profile with metal attachment profiles with a one-piece plastic profile Figure 2 at the beginning of the production of the composite profile;

Fig. 5

the cross section of a sash frame profile with metal attachment profiles with a one-piece plastic profile Figure 1 and 3 after snapping;

Fig. 6

the cross section of a frame profile with metal attachment profiles with a one-piece plastic profile Figure 2 and 4 after snapping;

Fig. 7

the cross section of a sash frame profile with metal attachment profiles with a one-piece plastic profile Figure 1 , 3 and 5 after snapping into place with a glazing bead;

Fig. 8

the cross section of a frame profile with metal attachment profiles with a one-piece plastic profile Figure 2 , 4 and 6 after snapping into place with a locking part;

Fig. 9

the cross section of a sash frame profile without additional metal profiles with a two-part plastic profile;

Fig. 10

the cross section of the sash frame profile with a two-part plastic profile Figure 9 with metal attachment profiles before snapping into place;

Fig. 11

the cross section of a sash frame profile with a two-part plastic profile with additional metal profiles from the Figures 9 and 10 after snapping and

Fig. 12

the cross section of a frame profile with a two-part plastic profile with metal attachment profiles after snapping into place.

Figure 1 shows a one-piece sash base profile 3 with two matching outer metal attachment profiles 5, 6. When installed, the left side is directed towards the surroundings of a house (weather side), while the left side is then directed towards the inside of the building.

In this case, the sash base profile 3 is an extruded PVC profile with several hollow chambers. The central, largest hollow chamber is suitable for accommodating steel reinforcement. The abundance of hollow chambers serves to provide thermal separation from the weather side to the inside of the building.

An entire window sash has a rectangular frame in which four sash base profiles 3 are connected to each other at right angles, usually mitered.

The sash base profile 3 has a rounded bulge 16 in the upper area on both outer sides, which connects the vertical, outer wall over an angle of around 50° inside or 310° outside with a slope that is directed inwards and downwards. The sash base profile 3 has a slope in the lower area on both outer sides with an angle of around 45° inside or 315° outside, which is directed inwards and downwards and ends in an undercut 12 at the top. There is an adhesive strip 13 on each outer side. The two attachment metal profiles 5, 6 each have a hook 15 in the upper area and a locking lug 11 in the lower area on the side facing the sash base profile 3.

Figure 2 differs from Figure 1 essentially in that a frame base profile 4 is arranged in the middle instead of a sash base profile; Figure 2 shows a section perpendicular to the perpendicular to the extrusion direction. The two outer attachment metal profiles 5, 6 are individually adapted to the frame base profile 4 and each have a hook 15 in the upper area and a locking lug 11 in the lower area. The base frame profile 4 essentially corresponds to the base frame profile 3 on the outer sides and also has a corresponding rounded bulge 16 and a corresponding undercut 12.

Figure 3 shows how the two attachment metal profiles 5, 6 are connected to the sash base profile 3 by putting the hooks 15 around the bulges 16. The two attachment metal profiles 5, 6 are tilted with the top inwards towards the sash base profile 3.

Before hooking, the adhesive strips 13 must either be attached or - if they have already been attached - a protective film on the outward-facing side must be removed.

Figure 4 shows analogously how the two attachment metal profiles 5, 6 are connected to the frame base profile 4.

The attachment metal profiles 5, 6 are then firmly connected to the sash base profile 3 and frame base profile 4 by rotating the outer attachment metal profile 5 counterclockwise, whereby the locking hook 11 slides along the slope 14 in front of the undercut 12 and then the locking hook 11 slides into the undercut 12 clicks into place. Analog happens on the other side, on which the respective inner attachment metal profile 6 is rotated clockwise, whereby the locking hook 11 of the inner attachment metal profile 6 slides along the slope 14 in front of the undercut 12 of the sash base profile 3 or frame base profile 4 and then the locking hook 11 into the undercut 12 clicks into place.

Figure 5 shows the sash base profile 3 with the two firmly locked attachment metal profiles 5, 6 and an unmounted glass retaining strip 8. Figure 5 shows a section of a sash frame profile. Above the sash base profile 3, the glazing will later be inserted with a standard block; The main plane of the glazing then runs perpendicular to the plane of the drawing, parallel between the two attachment metal profiles 5, 6 and is then fixed by means of the glass retaining strip 8. Common seals (not shown) are used here.

Figure 6 shows the frame base profile 4 with the two firmly locked attachment metal profiles 5, 6 in section as well as an unassembled locking part 9 and a screw 10.

Figure 7 shows the sash base profile 3 with the two firmly locked attachment metal profiles 5, 6 and the installed glass retaining strip 8.

Figure 8 shows the frame base profile 4 with the two firmly locked attachment metal profiles 5, 6 and the mounted locking part 9 with the screw 10 for firm fixation on the frame base profile 4.

Best way to carry out the invention

Figure 9 shows a plastic base profile 2, which consists of two plastic partial profiles 3, 4. The plastic part profile 3 is the sash base profile 3 from the Figures 1 , 3 , 5 and 7 . The plastic part profile 4 is the frame base profile 4 from the Figures 2 , 4 , 6 and 8th . The two plastic part profiles 3, 4 have the same width and are connected to one another via a coupling profile 7. For this purpose, the two plastic part profiles 3, 4 each have a groove on the top and bottom. The side walls of the grooves in turn have locking notches into which locking hooks of the coupling profile 7 engage.

Figure 10 shows the plastic base profile 2 Figure 9 with two attachment metal profiles 5, 6, which extend from the attachment metal profiles Figures 1 to 8 differ in that they are significantly higher. The attachment metal profiles 5, 6 each have a hook 15 in the upper area, a locking lug 11 in the middle area and a locking lug 11 in the lower area.

As described above, the two attachment metal profiles 5, 6 are connected to the plastic base profile 2 by first placing the hooks 15 around the bulges 16 of the upper plastic part profile 4. The two attachment metal profiles 5, 6 are tilted with the top inwards towards the plastic base profile 2.

The attachment metal profiles 5, 6 are then firmly connected to the plastic base profile 2 by rotating the outer attachment metal profile 5 in the counterclockwise direction, as a result of which the upper locking hook 11 slides along the slope 14 in front of the undercut 12 of the upper plastic part profile 4 and then this locking hook 11 into the aforementioned undercut 12, while the lower locking hook 11 slides along the slope 14 in front of the undercut 12 of the lower plastic part profile 3 and then this locking hook 11 locks into the undercut 12 of the lower plastic part profile 3.

The same thing happens on the other side, on which the inner metal attachment profile 6 is rotated clockwise.

Figure 11 shows a fully assembled composite profile 1 according to the invention with the plastic base profile 2 made of two plastic partial profiles 3, 4, coupling body 7 and two metal attachment profiles 5, 6. In the in Figure 11 Composite profile 1 shown is a sash frame profile. Each of the plastic part profiles 3, 4 is connected to both the outer attachment metal profile 5 and the inner attachment metal profile 6.

Figure 12 shows an associated frame profile. The fully assembled composite profile 1 has a plastic base profile 2 made of two identical plastic partial profiles 4, coupling body 7 and two metal attachment profiles 5, 6. The plastic partial profile 4 is the basic frame profile 4 from the Figures 2 , 4 , 6 and 8th . In the exemplary embodiment Figure 12 the two attachment metal profiles 5, 6 are only connected via the hooks 15 to the bulges 16 of the upper plastic part profile 4 and via the locking hooks 11 in the lower area to the undercuts 12 of the lower plastic part profile 4. Each of the plastic part profiles 4 is connected to both the outer attachment metal profile 5 and the inner attachment metal profile 6.

From composite profiles 1 according to Figure 11 8 window sashes can be manufactured in conjunction with other parts such as the glazing and glass retaining strips. From composite profiles 1 according to Figure 12 Matching frames can be made in conjunction with other parts, so that a complete window can be built. The production is carried out by assembling and connecting composite profiles 1.

This means that both single-layer and multi-layer profiles can be produced from the existing sash and frame profiles. If required, these single or multi-layer profiles are provided with additional metal profiles 5, 6 so that the multi-layer structure cannot be seen from the outside. This avoids high costs for a large number of extrusion tools for plastic profiles. For different profile heights, only different attachment metal profiles 5, 6 are necessary.

The plastic part profiles 3, 4 are in one piece between the attachment metal profiles 5, 6, this one-pieceness referring to a section perpendicular to the extrusion direction of the plastic part profiles 3, 4.

An entire window sash has a rectangular sash frame, in which several plastic part profiles 3, 4 and several metal attachment profiles 5, 6 are connected to one another, usually with a miter. Glazing is usually inserted into this sash frame via a block and fixed using glass retaining strips 8 via seals.

The attachment metal profiles 5, 6 are often aluminum profiles produced using the extrusion process.

The invention is not limited to the exemplary embodiments and can include further variants with the features described in the application. According to the invention, certain features can also be omitted if the combination of features falls under the protection of a patent claim.

A plastic base profile 2 can therefore comprise more than two plastic partial profiles 3, 4. What is important here is that in a finished blind and/or sash frame, an inner frame made of partial plastic profiles 3, 4 is enclosed by a further frame made of partial plastic profiles 3, 4; This further frame can optionally be enclosed by a further frame made of plastic part profiles 3, 4. Based on the views of the characters 9 to 12 the plastic part profiles 3, 4 should be arranged one above the other.

The coupling profile 7 can do without a locking function and can optionally connect the parts to one another via an appropriate fit. The hook 15 can be attached at the bottom instead of at the top and the locking lug 11 at the top.

Legend

1

Composite profile

2

Plastic base profile

3

Plastic part profile, sash base profile

4

Plastic part profiles, basic frame profile

5

outer facing metal profile

6

inner facing metal profile

7

Coupling profile

8th

Glass retaining strip

9

Locking part

10

screw

11

detent nose

12

Undercut

13

Adhesive strip

14

Oblique

15

Hook

16

bulge

17

Claims (9)

1. A composite profile (1) for a window or a door, including

   - a plastic basic profile (2),

   - an outer add-on metal profile (5), and

   - an inner add-on metal profile (6)
   wherein

   - the add-on metal profiles (5, 6) and the plastic basic profile (2) each comprise means (11, 12, 15, 16) which together form a latching function, so that the add-on metal profiles (5, 6) and the plastic basic profile (2) are connectable to one another by the latching function, and

   - the plastic basic profile (2) consists of multiple plastic part profiles (3, 4),
   characterized in that

   - the plastic part profiles (3, 4) are in one piece,

   - each of the plastic part profiles (3, 4) is connected both to the outer add-on metal profile (5) and also to the inner add-on metal profile (6), and

   - the plastic part profiles (3, 4) are firmly connected to one another by means of the latching functions via the inner and outer add-on metal profiles (5, 6).
2. The composite profile (1) according to Claim 1,
   characterized in that
   the plastic part profiles (3, 4) are connected to one another by means of a coupling profile (7), wherein preferentially the plastic part profiles (3, 4) and the coupling profile (7) each comprise means which together form a latching function.
3. The composite profile (1) according to any one of the Claims 1 or 2,
   characterized in that
   the plastic part profiles (3, 4) have the same profile width.
4. The composite profile (1) according to any one of the Claims 1 to 3,
   characterized in that
   the plastic part profiles (3, 4) are identical.
5. The composite profile (1) according to any one of the Claims 1 to 4,
   characterized in that
   the means which together form a latching function are latching hook (11), undercuts (12), hooks (15) and bulges (16) .
6. The composite profile (1) according to any one of the Claims 1 to 5,
   characterized in that
   the add-on metal profiles (5, 6) have the same height as the plastic basic profile (2).
7. A method for producing a composite profile (1) according to any one of the Claims 1 to 6,
   characterized in that
   plastic part profiles (3, 4) are placed against one another and are preferentially connected to one another by means of a coupling profile, the plastic part profiles (3, 4) are then connected on both side by means of the add-on metal profiles (5, 6), wherein both add-on metal profiles (5, 6) are added on either simultaneously or in succession.
8. The method according to Claim 7,
   characterized in that
   the composite profiles (1) are each portioned into four pieces and these four pieces are connected to one another.
9. A window or door having composite profiles (1) according to any one of the Claims 1 to 8.

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