EP2576949B1 - Thermally separated profiled element - Google Patents

Description

The invention relates to a thermally separated profile according to the introductory part of claim 1.

The invention further relates to a method for producing a thermally separated profile according to the introductory part of claim 6.

Such thermally separated profiles made of plastic, wood and metal are known and can be used, for example, in the manufacture of windows, doors, partitions, in the air conditioner, facade construction, solar systems and the like, which according to the invention is particularly considered that the thermally separated profile is used for glazed windows or doors or glazed partitions. Instead of the glass, a panel can also be used.
The problem with profiles made of wood is that wood is a living material, which sometimes undergoes major dimensional changes, as well as only after a protective treatment (painting, etc.) is weather-resistant, these paintings must be renewed again and thus produced profiles have a limited life.
Plastic profiles are often rejected because of their usually low strength and optical reasons. In addition, plastics tend to creep under load and often experience large dimensional changes with temperature variations.

Generic profiles are from the DE4238750A1 , of the EP1555376A1 , of the DE2412317A1 and the DE3909193A1 known. The document EP2096250A2 discloses a profile according to the introductory part of claim 1, and a method according to the introductory part of claim 6.

The invention has for its object to provide a thermally separated profile of the type mentioned, which is also suitable for the above purposes, has favorable thermal properties, easy to manufacture and easy to process and can be compensated in the component tolerances.

This object is achieved by a thermally separated profile with the features of claim 1.

This object is achieved by a method according to claim 6.

Metal profiles are well suited per se, but have the disadvantage that they conduct heat well, so that they are assigned poor insulation properties. To remedy this situation, often a composite profile of usually two metal profiles and one or more plastic profiles is combined. But these profiles have some shortcomings according to known manufacturing processes. In most cases, the strength of the plastic profiles or their connection to the metal profiles are problematic, but almost always the dimensional accuracy, ie to large dimensional tolerances, objected. For example, standard deviations in the overall depth of ± 0.2 - 0.4 mm are common in conventional production methods of metal profiles, plastic profiles can usually be manufactured with ± 0.1 - 0.3 mm construction depth tolerance. This results in the worst case, a dimensional deviation in the direction of the depth of up to ± 1.1 mm, which is too much for many applications. One possible approach to solving this problem would be to sort the individual subprofiles and then cleverly combine them to achieve the desired tolerances. However, this procedure is associated with high sorting costs, storage and logistics costs.
In order to provide a thermally separated profile available, which also has small manufacturing tolerances with favorable thermal properties and may be well processed even in sometimes inaccurate worked sub-profiles, the invention proposes that the metal profiles and optionally the plastic profile are held for calibrating jaws while a means for compensating for deviations of the metal profiles and / or the plastic profile cures.
According to the invention, means are thus provided in the case of a thermally separated profile, which harden during the dimensionally accurate calibration and thus enable a dimensionally accurate production of a profile from a plurality of partial profiles. This makes the dimensional accuracy clear can be improved and tolerances of ± 0.2 - 0.3 mm for the overall profile are possible. Preferred and advantageous embodiments of the invention are the subject of the dependent claims.
Since the thermally separated profile according to the invention consists of two metal profiles, which are connected to each other via a plastic profile, the profile according to the invention, in addition to the favorable properties that have metal profiles for the above purposes, good (thermal) insulating properties, so that in the inventive profile from a "thermally separated profile" can be spoken.
The shape and number of plastic profiles and the metal profiles is arbitrary and can be adapted to the outer shape of the construction to be created and the intended use. It is within the scope of the invention in principle possible to connect only a single metal profile with a single plastic profile or a single metal profile with multiple plastic profiles or a single plastic profile with multiple metal profiles or multiple metal profiles with multiple plastic profiles.
Due to the possible use of steel profiles, open metal profiles can be used as well as closed metal profiles, the metal profiles being made by deforming metal bands, especially steel bands.

Fig. 1

eine Schrägansicht einer Ausführungsform eines erfindungsgemäßen thermisch getrenntem Profils,

Fig. 2 bis 7

verschiedene Ausführungsformen des erfindungsgemäßen thermisch getrenntem Profils in Stirnansichten,

Fig. 8 bis 14

verschiedene Ausführungsformen für Metallprofile erfindungsgemäßer thermisch getrennter Profile,

Fig. 15

in Stirnansicht eine Ausführungsform für ein Kunststoffprofil eines thermisch getrennten Profils der Erfindung,

Fig. 16

in Stirnansicht eine weitere Ausführungsform eines erfindungsgemäßen thermisch getrennten Profils,

Fig. 17

eine andere Ausführungsform eines erfindungsgemäßen thermisch getrennten Profils in Stirnansicht,

Fig. 18

eine Anordnung zum Herstellen eines thermisch getrennten Profils durch Spiegelschweißen wobei es sich nicht um einen Teil der Erfindung, sondern um einen Stand der Technik handelt, der das Verständnis der Erfindung erleichtert,

Fig. 19

eine weitere als Fensterprofil ausgeführte Ausführungsform eines erfindungsgemäßen, thermisch getrennten Profils,

Fig. 20

eine Ausführungsform mit einem Isolierelement zwischen dem Kunststoffprofil und den Metallprofilen

Fig. 21

eine Ausführungsform mit einem Federelement zwischen dem Kunststoffprofil und den Metallprofilen

Fig. 22

eine Ausführungsform eines Kunststoffprofils mit anderen Ausführungsformen von Federelementen und

Fig. 23

eine weitere Ausführungsform eines erfindungsgemäßen, thermisch getrennten Profils.

Fig. 24

eine bevorzugte Ausführungsform des Verfahrens zur Herstellung der erfindungsgemäßen thermisch getrennten Profile bei Verwendung von Feder- oder Formänderungselementen.

Fig. 25

eine bevorzugte Ausführungsform des Verfahrens zur Herstellung der erfindungsgemäßen thermisch getrennten Profile ohne Feder- oder Formänderungselemente für sehr schmale Profilgeometrien,

Fig. 26

in Stirnansicht Metall(Stahl-)profile mit eingebautem Kunststoffprofil,

Fig. 27

in Stirnansicht Metall(Stahl-)profile mit eingebautem, bereits verklebten Kunststoffprofil.

Further details and features of the invention will become apparent from the following description of preferred embodiments.
It shows:

Fig. 1

an oblique view of an embodiment of a thermally separated profile according to the invention,

Fig. 2 to 7

various embodiments of the thermally separated profile according to the invention in end views,

8 to 14

various embodiments for metal profiles of thermally separated profiles according to the invention,

Fig. 15

an end view of an embodiment of a plastic profile of a thermally separated profile of the invention,

Fig. 16

in front view another embodiment of a thermally separated profile according to the invention,

Fig. 17

another embodiment of a thermally separated profile according to the invention in front view,

Fig. 18

an arrangement for producing a thermally separated profile by means of mirror welding, which is not a part of the invention but a state of the art, which facilitates the understanding of the invention,

Fig. 19

another embodiment of a thermally separated profile according to the invention, in the form of a window profile,

Fig. 20

an embodiment with an insulating element between the plastic profile and the metal profiles

Fig. 21

an embodiment with a spring element between the plastic profile and the metal profiles

Fig. 22

an embodiment of a plastic profile with other embodiments of spring elements and

Fig. 23

a further embodiment of a thermally separated profile according to the invention.

Fig. 24

a preferred embodiment of the method for producing the inventive thermally separated profiles when using spring or deformation elements.

Fig. 25

a preferred embodiment of the method for producing the thermally separated profiles according to the invention without spring or deformation elements for very narrow profile geometries,

Fig. 26

in front view metal (steel) profiles with built-in plastic profile,

Fig. 27

in front view metal (steel) profiles with built-in, already glued plastic profile.

At the in Fig. 1 shown embodiment of a thermally separated profile 1 according to the invention it is shown that this consists of a plastic profile 3 and two metal profiles 5.
The metal profiles 5 are joined together via the plastic profile 3 to form a thermally separated profile 1 and connected to one another.
It is to be assumed that the thermally separated profile 1 according to the invention is produced in long lengths, although in Fig. 1 only a (short) section of a thermally separated profile 1 according to the invention is shown.

The metal profiles 5 are made by deforming metal strips (roll forming) to the metal profiles with the in Fig. 1 and in the 8 to 14 shaped embodiments shown.

The metal profiles 5 have on the sides in their position of use in the thermally separated profiles 1 facing sides undercut, longitudinal grooves 7. In these longitudinal grooves 7, the plastic profile 3 engages with at its two, the metal profiles 5 facing sides provided, longitudinal projections 9 a.
The longitudinal grooves 7 of the metal profiles 5 are limited to the plastic profile 3 out by inwardly bent longitudinal leg 11.
The longitudinal projections 9 have in the in Fig. 1 shown embodiment of two of the main body 13 of the plastic profile 3 outgoing webs 15, which carry the longitudinal, eg tubular, profile parts 17. The profile parts 17 are connected to each other by a wall 19. From the wall 19 are in the in Fig. 1 shown embodiment still longitudinally extending ribs 21, which are supported on the bottom of the longitudinal grooves 7 of the metal profiles 5. In the limited between the webs 15 and the wall 19 and the main body 13 cavity having an approximately rectangular cross-sectional shape oblique or vertical to the wall 19 stiffening walls 23 are provided.
At the in Fig. 1 embodiment shown is still shown that a longitudinal transverse wall 25 of the base body 13 of the plastic profile 3 has at its edges longitudinal centering ribs 27. Such centering ribs can also be provided on both transverse walls of the main body 13 of the plastic profile 3.
In the Fig. 2 to 7 various embodiments of inventive thermally separated profiles 1 are shown, which differ from each other by different embodiments of metal profiles 5, wherein the in Fig. 5 embodiment shown substantially in Fig. 1 shown embodiment corresponds.
The thermally separated profiles 1 of the Fig. 1 to 7 used metal profiles are seen again in the 8 to 14 shown. It can be seen that the metal profiles in this embodiment are made by deforming metal strips (eg steel strips).

Fig. 15 again shows an end view of the plastic profile 3, wherein here an embodiment is selected, which are provided without the longitudinal ribs 21 on the wall 19 of the longitudinal projections 9 of the plastic profile 3.
At the in FIGS. 15 and 26 In the embodiment shown, the webs 15 of the projections 9 are longitudinally divided (the projections 9 are thus "open" by interruptions 33). In this embodiment, when connecting the parts of the webs 15 of the projections 9, a calibration of the profile 1 can be carried out. It would also be possible, individual parts or sections of the plastic profile 3, for example, the webs 15 in Fig. 1 or 5 to soften only so far that they can be plastically deformed for the calibration process and then cure again.
In the in the Fig. 1 to 15 In the embodiment shown, the longitudinal projections engage 9 of the plastic profile 3 in a form-fitting manner in the longitudinal grooves 7 of the metal profiles 5, so that the profiled strip 1 according to the invention is held together.
In order to avoid a higher security against relative displacement of the components of the thermally separated profile 1 according to the invention (plastic profile 3 and metal profiles 5), various measures can be taken. Such a measure is, for example, as in FIGS. 16 and 17 indicated to introduce between the longitudinal projections 9 of the plastic profile 3 and the metal profiles 5 adhesive 31. Such an adhesive 31 may be, for example, a heat-expanding adhesive 31, so that it is possible as in FIGS FIGS. 16 and 17 indicated strips of such an adhesive 31 when joining the components 3 and 5 of the thermally separated profile 1 according to the invention easily introduce.
In the in the FIGS. 16 and 17 embodiment shown is still considered that in mutually facing areas of the metal profiles 5 and the plastic profile 3, for example, in the bottom of the longitudinal grooves 7 and / or in the longitudinal projections 9 of the plastic profile 3 with holes from each other (perforations) introduce, in which the adhesive 31 extends during expansion, so that in addition to the adhesive connection, a positive connection between the components of the thermally separated profiles 1 according to the invention is achieved.

A non-inventive embodiment of a thermally separated profile 1 also makes it possible to produce these, in transverse to their longitudinal direction extending dimensions, with low tolerances. This can be done, for example, in that the protrusions 9 provided on the plastic profile 3 are initially still open, that is, with a longitudinal interruption 33 between the parts of the webs 15. With the help of mirror welding devices 35, the mirror 37 are inserted into the longitudinal slots 33 in the webs 15 of the projections 9 of the plastic profile 3, the slots 33 can be closed by welding, at the same time a calibration in the direction of Fig. 18 drawn arrows 39 is possible, so that for the dimensions of the thermally separated profile 1 is a transverse to its longitudinal extent (distance of the metal profiles 3 from each other) with the required low tolerances possible. Thus it is also prevented that the tolerances of the metal profiles 5 and the tolerances of the plastic profiles 3 add up, and so the thermally separated profile 1 has a dimension which exceeds or falls below the permissible tolerances.
In Fig. 19 is another embodiment of a window according to the invention as a window profile, shown thermally separated profile in which the plastic profile 3 four U-shaped grooves 41 are arranged, which are aligned in a V-shaped section to each other. In the grooves 41 engage with game projections 43 in the form of straight ribs, which are the same as the U-shaped grooves 41 and thus at each metallic profile 5 A-shaped aligned with each other. In a gap between the ribs 43 and the grooves 41 adhesive 45 is introduced to connect the plastic profile 3 fixed to the metal profiles 5. The adhesive may initially be attached only at the bottom of the grooves 41 and then under energy, in particular under heat, expand to completely fill the gap. Alternatively, the adhesive may also be pressed into the gap by means of a nozzle in already joined profiles 3, 5.

Between the metal profiles 5 and the plastic profile 3, a respective spring element 55 is installed in the form of a Y-shaped spring clip, which causes a tension between the plastic profile 3 and the respective metal profile 5.

Instead of U-shaped grooves 41 and flat projections 43, other profiled grooves and projections could be used, for example, T-shaped grooves and projections, which would provide a more stable positive connection.

The plastic profile 3 can be fitted with a rebate seal 47 having lips 49, e.g. be fixed by means of a latching connection 51 to divide the glass fold between a glass sheet 53 and the profile 3 into a plurality of chambers. The seal of the Glasfalzes can be designed so that by local perforation of the lips 49 or Abreißlippen 49 any incoming water can be redirected or out to the outside.

In Fig. 20 an embodiment of a thermally separated profile 1 is shown, with respect to their connection of the plastic profile 3 with the metal profiles 5 as those of Fig. 19 is constructed, that has V-shaped arranged U-shaped grooves 41, in which flat ribs 43 are glued. Between the metal profiles 5 and the plastic profile 3 insulating members 57 are arranged, which not only has an insulating effect, but, depending on the material properties, can also be used to cause a tension between the plastic profile 3 and the respective metal profile 5.

On one side of the plastic profile 3 is in the embodiment of Fig. 20 a dovetail-shaped groove 59 arranged to fasten there correspondingly shaped components.

In the embodiment of Fig. 21 in terms of their connection of the plastic profile. 3 with the metal profiles 5 like those of Fig. 20 is constructed, that has V-shaped arranged U-shaped grooves 41, in which flat ribs 43 are glued, is formed as a spring element, an arm 61 on the plastic profile 3, which rests resiliently against an inner wall 63 of the respective metal profile 5. In addition, instead of a dovetail groove as in Fig. 20 a U-shaped groove 65 is provided.

In the embodiment of Fig. 22 In turn, a plastic profile 3 is provided, which is largely like that of Fig. 20 is constructed, however, has a T-shaped groove 67 in order to fasten correspondingly shaped further components. The grooves 59, 65, 67 serve to accommodate other components, such as mounting plates, and are designed for the transmission of fastening forces.

In a recess 69, in the embodiment of Fig. 20 the insulating member 57 is inserted, is in the embodiment of Fig. 22 preferably an annular spring clip 71, 73 inserted, which may be open or closed and in turn creates a tension of the plastic profile 3 with the respective (not shown) metal profile.

In Fig. 23 a further embodiment of a thermally separated profile 1 according to the invention is shown, which has a comparatively flat cross-sectional shape. Since there is little space in this embodiment to V-shape the grooves into which the ribs on the metal profiles engage, the grooves 75 are arranged approximately like an elongated Z, with an inner leg 77 and a middle web 79 entirely within Plastic profile 3 are added, whereas an outer leg 81 of the Z is open to the side, so that the corresponding leg portion 83 of the metal profile 5 is exposed on one side, whereas the other two leg portions 85, 87 are accommodated in the plastic profile 3.

The metal profiles 5 are in the in Fig. 23 illustrated embodiment, open, substantially U-shaped profiles that form with their free legs 83, 85, 87, the projections or ribs, which engage in the grooves 77, 79, 81 on the plastic profile 3 and can be glued there.

In order to make the thermally separated profile 1 according to the invention suitable for the widest possible field of application, the plastic may be suitable for outdoor applications and / or fire protection. In addition, the plastic may be wholly or partially (e.g., on the visible sides) paintable and / or powder-coatable.

In Fig. 24 is the stepwise process of the inventive method for producing a thermally separated profile using a spring or deformation element shown. This spring or deformation element is inserted as shown in the figure in a first step, or is in the case of an integrally formed spring element (61 in Fig. 21 ) from the outset. The spring element can be used as an open (73 in Fig. 22 ) or closed also metallic spring clip (71 in Fig. 22 ), it is also conceivable in the case of lack of space, a Y-spring element (55 in Fig. 19 ) of reinforced, conditioned polyamide or metal. For reasons of thermal separation, a foamed strain element (57 in Fig. 20 and Fig. 24 ) proven.

In the second step, the metal profiles are attached to the plastic profile. Subsequently, only the loosely assembled composite profile is inserted or pushed into a clamping device, preferably in a press or in a roller table, and slowly compressed in the fourth step. If the target dimension or a measure is achieved within the desired tolerance, the profile parts are fixed to each other to be glued now in the fifth and final step. Adhesive nozzles drive to the adhesive joints and press the glue filling the gap around the metal lugs. In this way, the entire composite profile in the width Z can be made to measure (eg with ± 0.2 - 0.3 mm tolerance), although the individual tolerances at dimension X as mentioned above in conventional production methods of metal profiles in the order of ± 0, 2 - 0.4 mm tolerance and that of the plastic profiles at dimension Y are on the order of ± 0.1 - 0.3 mm tolerance.

In Fig. 25 is the stepwise process of the method according to the invention for producing a thermally separated profile without using a spring or deformation element shown. This is necessary, for example, if the profile should be particularly narrow and there is no room for the attachment of a spring elements. Here, in the first step, the metal profiles are attached to the plastic profile. Subsequently, in the second step, the only loosely assembled composite profile is placed in a press 90 with magnetizable jaws 92. In the third step, the jaws 92 are magnetized to hold the metal profiles and move the press to the desired level. In the fourth and final step, adhesive nozzles 91 ride on the adhesive joints 45 and press the gap-filling adhesive around the metal legs 87. In this way, the entire composite profile can also be made to measure with, for example ± 0.2 - 0.3 mm tolerance, even if the individual tolerances are at least partially greater.

Claims (8)

1. Thermally separated profiled element (1) comprising at least one plastic profiled element (3) and at least two metal profiled elements (5) extending in the longitudinal direction of the plastic profiled element (3), wherein the metal profiled elements (5) have first grooves (7), into which the at least one plastic profiled element (3) at least partially meshes via first projections (9) extending in the longitudinal direction of the profiled element, wherein the metal profiled elements (5) are produced by deforming metal bands, in particular steel bands, wherein these profiled elements (3, 5) are joined to the thermally separated profiled element (1) and connected to each other, wherein the plastic profiled element (3) is glued to the metal profiled elements (5) with an adhesive (45), wherein in the plastic profiled element (3) second grooves (41, 77, 79, 81) are arranged, into which second projections (43, 83, 85, 87) arranged on the metal profiled elements (5) mesh, and wherein a gap between the second projections (43, 83, 85, 87) and the second grooves (41, 77, 79, 81), in which the second projections (43, 83, 85, 87) are received, is at least partially filled with the adhesive (45), characterised in that the adhesive (45) is pressed onto the profiled element longitudinal side from a nozzle in the gap of the profiled element (1).
2. Thermally separated profiled element according to claim 1, characterised in that in the plastic profiled element (3) for each metal profiled element (5) two grooves (41) are arranged, which are aligned in a V-shaped section to each other.
3. Thermally separated profiled element according to claim 1 or 2, characterised in that the adhesive (45) fills the entire gap.
4. Thermally separated profiled element according to claim 1, 2 or 3, characterised in that the adhesive (45) is provided over the entire length of the thermally separated profiled element (1).
5. Thermally separated profiled element according to claim 1, characterised in that a thixotropically adjusted adhesive (45) is pressed in.
6. Method for producing a thermally separated profiled element (1), in which at least one plastic profiled element (3) and at least two metal profiled elements (5) extending in the longitudinal direction of the plastic profiled element (3), which are produced by deforming metal bands, in particular steel bands, are connected to each other in that the plastic profiled element (3) and the metal profiled elements (5) are joined to the thermally separated profiled element (1) via first projections (9) arranged on the plastic profiled element (3) and extending in the longitudinal direction of the profiled element, which mesh in first grooves (7) arranged on the metal profiled elements (5), and are connected to each other, wherein the plastic profiled element (3) is glued to the metal profiled elements (5) with an adhesive (45), characterised in that the adhesive (45) is pressed onto the profiled element longitudinal side from a nozzle in the gap between second projections (43, 83, 85, 87) of the profiled element (1) and second grooves (41, 77, 79, 81) of the plastic profiled element (3),
7. Method according to claim 6, characterised in that the metal profiled elements (5) and, optionally, the plastic profiled element (3) for calibrating a tensioning device, are held preferably by a press (90) or by a roller, while the adhesive (45) for compensating dimensional deviations of the metal profiled elements (5) and/or the plastic profiled element (3) hardens.
8. Method according to claim 6 or 7, characterised in that a thixotropically adjusted adhesive (45) is pressed in.

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