EP1066431A1

EP1066431A1 - Support for door frames, facades or the same

Info

Publication number: EP1066431A1
Application number: EP99917773A
Authority: EP
Inventors: Helmut Over
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-03-27
Filing date: 1999-03-03
Publication date: 2001-01-10
Also published as: DE19980555D2; WO1999050511A1; AU3594499A

Abstract

A support (1) for door frames, facades or the same, consisting of an inner part (4) that extends as far as the inner side (6) of the door and an outer part (5) that extends to the outer part (7) of the door, thereby enabling the parts to be thermally separated. Preferably, a polyamide insulator (8) is arranged between the parts. This results in a considerable improvement in the insulation qualities of the support area between the windows.

Description

1 -

Carrier for window frames, facades or the like

The invention relates to a support for window frames, facades or the like with an inner part extending to the inside of the frame and an outer part extending to the outside of the frame.

If several window frames are to be connected to one another on the spars, this connection must absorb the forces that occur and, on the other hand, the connection between the window spar and the support must be watertight and as poorly conductive as possible. In the prior art, the spars of the window frames are pulled via coupling screws against a hollow profile or solid profile arranged between the adjacent spars of two window frames and thus pressed onto the surface of these supports. The long sides of these beams can protrude and can have longitudinal ribs on the sides opposite and facing the respective spars, in which corresponding longitudinal edges no cover flaps can snap in (Werυ GmbH & Co. KG, AKF, external steel reinforcement with cladding profile, sheet 13/32 from FIG. 6 / 84). This arrangement is thermally unsatisfactory. The manufacture is expensive and it is not possible to provide a satisfactory seal against moisture. 2 -

A further development of such a carrier is described in European patent specification 296 280 B1. The carrier described there consists of two identical, but mirror-inverted, flat profiles, with two hollow chambers spaced parallel to one another and in the longitudinal direction, each of which is open to the outside via a longitudinal slot, the flat profile being assigned to each slot of a spar has at least one grid web which can engage in said slot. This carrier can be produced very simply as an uninterrupted rolled profile and therefore extremely inexpensively in its starting element.

Starting from this prior art, the object of the invention is to further develop a generic carrier in such a way that the heat transfer between the window frames is further reduced.

This object is achieved in that. the inner part extending to the inside of the frame and the outer part extending to the outside of the frame are thermally separated.

The invention is based on the finding that it is not absolutely necessary for a carrier to be formed in one piece. Without significantly affecting the strength of the carrier, it is possible to manufacture the carrier from two elements that are thermally separated.

Usually there is the inner part extending to the inside of the frame and the outer part of the outer part extending to the outside of the frame Carrier made of metal. Metal offers excellent strength values at low manufacturing prices. A disadvantage of metal, however, is the good thermal conductivity, which leads to the fact that the carrier transports heat from the inside of the frame to the outside of the frame. According to the invention, the parts are therefore connected to one another via a thermal insulator, which is preferably a solid. The individual metallic parts of the carrier thus allow heat conduction from the outside or from the inside to the insulator, which prevents heat conduction from the inner part to the outer part. The carrier described therefore has extremely good thermal properties that have not previously been achieved by carriers for window frames.

The thermal insulator is preferably a solid body, which essentially bridges the distance between opposing frame bars. In addition to heat conduction, heat radiation also plays an important role in heat transfer. The formation of the dts insulator as a solid, which lies between the frame bars, hinders the transfer of radiant heat between the inner and outer part, which further improves the heat transfer.

A structurally simple construction of the carrier results if the thermal insulator firmly connects the inner and outer parts to one another. In addition to its insulation properties, the insulator also fulfills static requirements, with the essential forces being absorbed by the inner and outer parts. 4

Depending on the design of the support structure, the inner or outer part can be positively and / or non-positively connected to the insulator. Either the insulator can encompass the metal part or the metal part can encompass the insulator. In addition, toothing between the insulator and the metal part can favor the connection of these parts.

A simple, inexpensive way of producing the carrier is achieved if the inner and / or outer part is bent as a flat profile. For this purpose, a metal strip can be rolled into a carrier part that has a special profile depending on the requirement. Cold forming allows large quantities to be continuously manufactured with sufficient high precision.

In particular when using cold-formed flat profiles, it is advantageous if the inner and / or outer part, preferably protruding in the frame plane, has retaining webs for interacting with the frame bars. These holding bars allow the frame spar and the carrier to be positioned precisely with respect to one another and facilitate the assembly of the carrier and window frame.

A preferred embodiment of the carrier provides that the inner and / or outer part has a screw channel running in the longitudinal direction of the carrier. This screw channel allows a further element such as a cross member to be attached transversely to the end of the member. For this purpose, a screw channel running in the longitudinal direction of the carrier can also be provided in the insulator. 3 -

For example, in order to attach a cover profile to the inside and outside of the carrier, it is proposed that the inner and / or outer part have a groove running in the longitudinal direction of the carrier, which preferably widens towards the inside of the groove. Such a groove allows web-shaped elements to be pressed into the groove and, for example, to be non-positively fastened there, at least also by means of corrugations or undercuts. In the simplest case, cover profiles provided with a mandrel can be attached to the inner or outer part simply by pressing the mandrel into the groove. A groove width that widens towards the inside of the groove allows an increased force to be exerted on the mandrel.

To save insulator material, it is possible that the thermal insulator is shorter than the carrier. Since it is not necessary for the thermal insulator to connect the inner part to the outer part of the carrier over the entire length of the carrier, an insulator piece can also be used in sections between the parts without significantly influencing the strength of the carrier.

The insulator can be made of polyamide, for example.

A further embodiment of the invention provides that the inner part can be fastened to a frame and the outer part to a frame arranged opposite one another. - 6th

Ultimately, it is suggested that the inner part and the outer part do not touch or only touch on a minimal area. The carrier thus consists of two carrier parts that either only touch lightly or do not touch each other at all. A very good thermal separation is also achieved in this way.

Several embodiments of carriers according to the invention are shown in the drawing and are explained below.

1 shows a cross section through a carrier with an H-shaped insulator and expansion plate between two window frame spars,

2 the carrier according to FIG. 1 without expansion plate,

3 shows a cross section through a carrier with an insulator, which serves as an outer carrier part and is arranged between expansion plates,

4 shows a cross section through a carrier according to FIG. 3 but without expansion plates,

Fig. 5 is a cross section through a cross-shaped beam

Insulator and expansion plate,

6 shows a cross section through a carrier according to FIG. 5, but without expansion plates, 7 -

Fig. 7 shows a cross section through a carrier similar to the carrier

5, in which the insulator serves as an outer support part,

Fig. 8 shows a cross section through a carrier similar to the carrier

6, in which the insulator serves as an outer support part,

9 shows a cross section through a carrier with a Z-shaped insulator and expansion plate,

10 shows a cross section through a carrier similar to the carrier according to FIG. 9, in which the insulator serves as an outer carrier part,

11 shows a cross section through a carrier with an insulator plate clamped between the inner and outer carrier part,

12 shows a cross section through a carrier similar to the carrier according to FIG. 11, in which the insulator plate fills an interior of the carrier part,

13 shows a cross section through a carrier with a short insulator plate,

Fig. 14 shows a cross section through a carrier similar to the carrier

13 without insulator plate, - 8th -

Fig. 15 shows a cross section through a carrier with held in the spar profile inner and outer part and

16 shows a cross section through a carrier similar to the carrier according to FIG. 15 with expansion plates.

The carrier 1 shown in FIG. 1 is arranged between two bars 2 and 3 of a window frame and essentially has an inner carrier part 4 which extends to the inside of the frame 6 and an outer carrier part 5 which extends to the outside 7. An insulator 8 is arranged between the two carrier parts 4 and 5, and a cover profile 9 and 10 is attached to the inner end of the inner part 4 and to the outer end of the outer part 5. The insulator 8 is connected to the frame bars 2 and 3 via expansion plates 11 and 12.

The inner part 4 and the outer part 5 are rolled from a sheet steel and each represent a symmetrical profile to a central plane 13. The special profile shape allows projecting retaining webs 14 and 15 or 16 and 17, which extend perpendicular to the plane 13 in the plane of the frame Positioning of the carrier 1 relative to the frame bars 2 and 3 allows. In the direction of the plane 13, the steel profile forms a groove 18 which, as shown in the inner profile part 4, can widen to the inside of the groove 19 or which can be formed in the outer profile part 5 with parallel edge surfaces. A third functional area of the inner and outer profile part is the connection point 20 and 21 between the profile part and the insulator 8. At this connection point, the insulator is formed with a groove having an undercut in the carrier shown in FIG. 1. The inner or outer profile part are matched to this groove. At the points at which the inner profile part 4 or the outer profile part 5 is connected to the spar 2 or 3, sealing compound designated with the reference numbers 22, 23, 24, 25 is arranged.

When assembling the carrier, PVC expansion plates 12 are first placed at regular intervals, preferably on both sides, on the side of the window frame spar 2 facing the carrier 1. Subsequently, a carrier 1 consisting of an inner carrier part 4, insulator 8 and outer carrier part 5 is placed thereon and screwed onto the frame spar 2. The screw 26 used for this penetrates the insulator 8, the PVC expansion plate 12 and the spar wall and finally stops at a box-shaped reinforcement profile 27 arranged in the spar 2. When screwing tight it is ensured that the holding webs 15 and 17 engage in recesses on the frame spar 2. Then the frame spar 2 together with the screwed-on carrier 1 is screwed onto a further window frame spar 3 by means of the screw 28. Care is also taken here that the retaining webs 14 and 16 engage in openings on the frame bars, so that the carrier 1 is properly positioned between the frame bars 2 and 3. The screw 28 is selected to be long enough that it extends through the entire frame spar 2 and through the entire beam into the opposite spar.

ERSÄΓZBLÄΓT (RULE 26) - 10th

is screwable. This screw 28 then stops in the square reinforcement profile 29 of the spar 3.

Since the expansion plates 11 and 12 are only arranged at intervals, the screws 26 and 28 can be positioned so that they do not penetrate the expansion plates. Pre-drilling and markings at regular intervals can make assembly easier.

After connecting the carrier 1 to the spars 2 and 3, 7 cover profiles 9 and 10 can be attached to the inside 6 and the outside. These cover profiles 9 and 10 each have a web 30 and 31 which can be inserted into the grooves 18 and 19, respectively, in order to connect the cover profiles firmly in the inner 4 and outer part 5. The cover profiles 9 and 10 have sealing profiles 32, 33, 34 and 35 on the surfaces on which they are connected to the frame bars 2 and 3, respectively.

The carrier produced in this way leads to heat conduction via the outer profile part to the insulator. The further heat conduction is prevented by the insulator, so that the inner profile part 4 cannot be cooled by the outer profile part. The insulator arranged between the inner and the outer profile part bridges the surface between the PVC expansion plates 11 and 12 transversely to the axis 13 and thus also prevents heat transfer due to heat radiation. - 11 -

Fig. 2 shows an embodiment without expansion plate. Depending on the application, the expansion plates 11 and 12 are not necessary and can advantageously also be omitted.

In the embodiment shown in FIG. 3, the outer part is formed by a specially shaped insulator 36. This insulator 36 also has a fastening region 20 for fastening the inner profile part 4 to the insulator 36. This fastening region 20, the opposite side of the insulator 36, has a groove 19 ′ into which the web 31 of the outer cover profile 10 can penetrate. In addition, the insulator 36 has retaining webs 16 ', 17' which perform the same function as the previously described retaining webs 16 and 17 of the metallic outer part 5.

In the embodiment described, the insulator 36 takes over the function of the metallic outer part 5 described above. As a result, the outer metallic part 5 can be dispensed with, which prevents cold from penetrating to the inside of the frame. The dew point line lies further on the outside of the window.

An embodiment with expansion plates 11, 12 is shown in FIG. 3. 4 shows that the use of expansion plates can also be dispensed with in this embodiment.

5 shows a carrier which essentially corresponds to the carrier according to FIG. 4. In this carrier, the insulator body 37 is cruciform and the inner part 4 'and the outer part 5' point to it - 12 -

Insulator facing sides on clamp-like ends 38, 39, which ensure a firm connection between the inner part 4 'or the outer part 5' and the insulator 37.

The embodiment shown in FIG. 5 can also be used both with PVC plates 11, 12 and, as shown in FIG. 6, without expansion plates.

In the embodiment shown in FIG. 7, the clip-like design of the inner part 4 ′ is realized on the one hand, as is the extended embodiment of the insulator. The insulator 40 therefore has a web 41 on the inside with undercuts, which serves as a fastening area 20, and on the other side a design as in the insulator 36 shown in FIG. 3.

The embodiment shown in FIG. 7 can also be used with expansion plates 11, 12 or, as shown in FIG. 8, without expansion plates.

The embodiment shown in FIG. 9 has a Z-shaped insulator 42 as the central element. In this embodiment, the fastening areas 20 and 21 lie on both sides of the insulator, since the inner part 4 "and the outer part 5" each have an extension 43 or 44, which is clamped between the insulator 42 and the respective expansion plates 11 and 12, respectively. The screws 26 and 28 thus also penetrate the extension 43 and 44 and thus hold the inner part 4 'and the outer part 5' firmly in position. - 13 -

In this embodiment too, the insulator can be designed as an elongated insulator 45, so that the insulator 45 takes over the function of the outer part 5 ″ shown in FIG.

FIG. 11 shows an embodiment in which the inner part 46 and the outer part 47 are formed from a stronger material. Both parts are essentially Ω-shaped, the insulator 48 being clamped in the foot opening and holding webs 49, 50, 51, 52 extending on both sides of the foot opening. The rest of the structure essentially corresponds to that described above, the expansion plates 53, 54 being made of stronger material.

In order to achieve a secure connection between the insulator and the Ω-shaped parts 46 and 47, according to the exemplary embodiment according to FIG. 12, a dumbbell-shaped insulator 48 is proposed, the ends of which in cavities of the Ω-shaped inner part 46 and the Ω, respectively - Shaped outer part 47 are added. This results in a positive connection between the inner part 46 or the outer part 47 and the insulator 48.

In the embodiment shown in FIG. 13, the outer part 46 'and the part 47' each have an extension 49 or 50, which extends between an insulator 51 and an expansion plate 52 or 53. This extension is thus firmly connected to the insulator 51 by the screws 26 and 28, similar to the exemplary embodiment according to FIG. 9.

REPLACEMENT BOOK (RULE 26) - 14 -

The embodiment shown in FIG. 14 essentially corresponds to that shown in FIG. 13. In the embodiment according to FIG. 14, however, the isolator is dispensed with. In the embodiment, the inner part 46 ′ is screwed onto the frame spar 2 by means of the screw 26 and an expansion plate placed in between. The outer part 47 'is then screwed onto the frame member 3 by means of the screw 54 and an expansion plate 52 placed between them. In addition, the frame spar 2 with the inner part 46 'screwed on and the frame part 3 with the outer part 47' screwed on is joined together and screwed together by means of the screw 28.

15 shows an inner carrier part 55, which is held in the projections 56, 57 of a first frame spar 58, and an outer carrier part 59, which is held between the projections 60, 61 of a second frame spar 62. An insulator 63 is arranged between the inner carrier part 55 and the outer carrier part 59 and presses the carrier parts 55 and 59 against the frame spars 58 and 62. The open space on the inside and the outside between the frame bars 58 and 62 is filled by seals 64, 65, 66, 67.

The embodiment shown in FIG. 16 essentially corresponds to that according to FIG. 15, here expansion plates 68 and 69 being arranged both between the inner support part 55 and the frame spar 58 and between the outer support part 59 and the frame spar 62.

Claims

- 15 patent claims:

1. Carrier (1) for window frames, facades or the like with an inner part (4) extending to the inside of the frame (6) and an outer part (5) extending to the inside of the frame (7), characterized in that the parts (4, 5) are thermally separated.

2. Carrier according to claim 1, characterized in that at least one part (4) is made of metal.

3. Carrier according to one of the preceding claims, characterized in that the parts (4, 5) via a thermal insulator

(8), which is preferably a solid, are connected to one another.

4. Carrier according to one of the preceding claims, characterized in that the outer part is made as an insulator (36).

5. Carrier according to one of the preceding claims, characterized in that the thermal insulator firmly connects the inner (4) and the outer part (5) to one another.

6. Carrier according to one of the preceding claims, characterized in that the inner part (4) and / or the outer part (5) - 16 -

are positively and / or non-positively connected to the insulator (8).

7. Carrier according to one of the preceding claims, characterized in that the inner part (4) and / or the outer part (5) are bent as a flat profile.

8. Carrier according to one of the preceding claims, characterized in that the inner part (4) and / or the outer part (5) has at least one preferably in the frame plane projecting retaining web (14, 15, 16, 17) with the frame bars cooperates.

9. Carrier according to one of the preceding claims, characterized in that the inner part (4) and / or the outer part (5) has a screw channel extending in the longitudinal direction of the carrier.

10. Carrier according to one of the preceding claims, characterized in that the insulator (8) has a screw channel running in the longitudinal direction of the carrier.

11. Support according to one of the preceding claims, characterized in that the inner part (4) and / or the outer part (5) have a groove (18, 19) extending in the longitudinal direction of the support, which preferably widens towards the inside of the groove. - 17 -

12. Carrier according to one of the preceding claims, characterized in that the thermal insulator (8) is shorter than the carrier.

13. Carrier according to one of the preceding claims, characterized in that the thermal insulator (8) is made of polyamide.

14. Carrier according to one of the preceding claims, characterized in that the inner part (46 ') is attached to a frame and the outer part (47') on an opposite frame.

15. Carrier according to one of the preceding claims, characterized in that the inner part (46 ') and the outer part (47') do not touch or only touch on a minimal area.

REPLACEMENT BLADE (RULE 26)