EP2411594B1 - Mounting profile, clamping device, and façade element - Google Patents

Description

The invention relates to a holding profile and a clamping device for clamping a flexible surface element. Furthermore, the invention relates to a facade element for a building, wherein the facade element comprises the clamping device and the flexible surface element clamped therein.

The term surface element referred to in the present description z. B. a fabric web or a tarpaulin. The surface element can, for. B. made of plastic, glass fiber fabric, metal or other materials. Depending on the material, it has different properties and is more or less elastic. The surface element can be colored or z. B. for advertising purposes, preferably digital, be printed. Depending on the material used, the surface element may be transparent, semi-transparent or opaque. The surface element can also be equipped with an integrated thermal insulation. The integrated thermal insulation and / or vapor diffusion open roofing membranes / underlays can be integrated into the surface element.

The term holding profile describes in the context of the present description preferably a metal profile for holding or clamping the surface element. The retaining profile typically comprises a base body and a fastening device for fastening the surface element to the base body.

In order to be used as a facade element, the surface element with the aid of a clamping device must be as flat as possible, wrinkle-free and taut. The term tensioning device therefore referred to in the context of present description, a device for clamping the surface element. The clamping device comprises at least two holding devices, between which the surface element can be clamped.

Finally, the term facade element in the context of the present description describes said clamping device with surface element clamped therein. Such surface elements are preferably fastened to the outer wall of a building. You can replace a conventional exterior facade made of metal, plastic, wood or minerals, etc. completely or partially. If there is already an old facade on the building, the facade elements according to the present invention can be subsequently connected upstream as a new external facade in the course of a redesign of the old facade to cover them. The facade elements can be designed completely arbitrary in shape. So they can be the same or different in form and dimensions as the old facade to be covered. Even different buildings can be summarized by a fabric facade, which typically consists of a plurality of facade elements, visually to a single building front.

Holding profiles, fixtures and facade elements of the type described are basically known in the art. So is a holding profile of the type described z. B. from the European patent EP 0 548 691 B1 known. A holding profile, a clamping device and a facade element of the type described are z. B. from the German utility model DE 20 2008 009 183 U1 known.

However, the known holding profiles, fixtures and facade elements are so far disadvantageous in that they are not flexible enough on over time changing properties, especially the changing Resilience behavior react with no or only slightly elastic surface elements.

Already during production and assembly, the surface element is applied with a bias on the jig or their holding profiles to meet design and technical requirements in terms of flatness, wrinkle-free and tight tension. This preload already represents a first non-negligible load on the surface element. In addition, when the surface element is mounted on the outside of a building, permanent loads caused by wind pressure and wind suction. All these stresses over time lead to fatigue of the surface element and let it, depending on the type of material and preload in the course of time more or less greatly relaxed. Particularly high is the burden and thus the danger of slackening in the edge deflection area or in the corners of the surface elements. Not or only slightly elastic reacting materials or fabric of the surface elements can not compensate for these strong static and dynamic loads by their own elasticity and therefore there is a risk especially in the edge and corner that the fabric is destroyed under continuous load and in the worst case even tears. The originally aimed at the installation and introduced tight tension of the surface element in the jig or the facade element can therefore not be maintained permanently.

The international patent application WO 2006/063991 A1 discloses a textile panel in which a flexible surface element is clamped by means of clamping elements in a frame. The frame consists of at least two opposite holding profiles. The clamping elements are elastic and guided with its one end in a piping rail of the retaining profile. With its opposite other end, the clamping elements are connected to the surface element, typically sewn. The clamping elements according to the WHERE 2006/063991 fulfill a dual function in that they simultaneously serve to attach the surface element to the frame and to apply a voltage to the flexible surface element.

From the US 5,044,102 is a sign with a frame known on which a flexible fabric is mounted. The fabric is connected via springs to the frame and is stretched over the springs at the same time.

From the US 5,033,216 is a holding profile with a fastening device for fastening a surface element to a base body in the form of a latch known.

At one of the EP 0 503 705 A2 known holding profile is a surface element in the form of a tarp attached via a hinge spring to a frame member in an elastic manner.

And at one of the US 6,070,351 known holding profile is a surface element via a fastening device in the form of a locking device attached to a frame. In addition, a flexible strip is provided, which serves to shape the surface element in three-dimensional space and thereby causes a bias of the surface element due to its flexibility. This describes US6070351 all features of the preamble of claim 1. Based on this prior art, the present invention seeks to propose an alternative embodiment of a retaining profile, a known clamping device and a facade element.

This object is achieved for the retaining profile according to the invention that at least one spring element and at least one clamping profile are provided for clamping the surface element, wherein the clamping profile is resiliently mounted by means of the spring element on the base body of the holding profile. The main body has a recess in which the clamping profile is guided linearly displaceable, wherein the clamping profile has a rounded head shape at its end facing the surface element.

Furthermore, the object for the aforementioned clamping profile is achieved in that at least one of the holding means is designed in the form of the holding profile according to the invention with the spring-mounted clamping profile.

The spring-mounted clamping profile according to the invention ensures the necessary elasticity for the surface element; it compensates for the possibly too low own elasticity of the surface element. In this way, the destruction of a not or a material which does not react sufficiently elastically is avoided by reducing the stress on the surface element due to prestressing or wind. By using the spring-mounted retaining profile provided according to the invention, the tensioning device and therefore also the facade element are advantageously self-tensioning with respect to the surface element. A material fatigue and a decreasing over time stress of the surface element is counteracted automatically by the holding profile according to the invention and the clamping device according to the invention.

The retaining profile has a preferably U-shaped recess. This recess has the advantage that in it the clamping profile is guided linearly displaceable. The clamping profile is then supported in particular even with oblique force by wind pressure or wind suction on the surface element and remains functional.

Advantageous embodiments of the spring element and a fastening device for fastening the surface element to the main body of the holding profile are specified in the dependent claims. Thus, the spring element may be formed by round springs or wavy strips made of plastic or metal. The shape of the spring element depends on the particular requirement, such as, for example, according to the locally prevailing winds or the present temperature conditions.

In a further preferred embodiment of the device, the at least one spring element is formed by elastic plastic strips, plastic cords or plastic tubes. These spring elements are particularly lightweight and are simple and inexpensive to manufacture.

A particular embodiment of the fastening device, namely in the form of a receiving space in the base body, in which a clamping insert can be locked with the surface element attached thereto, offers the advantage that the surface element can be fastened and tensioned by the latching of the clamping insert on the retaining profile in a particularly simple manner ,

A cover profile for the main body offers the advantage that with its help the fastening device for the surface element can be covered or covered. The fastening device is thus no longer visible to the outside. In addition, the cover also serves as protection of the body and the fastening device against weathering. Alternatively, the cover profile may also be formed as part of the fastening device.

A rounded head shape of the clamping profile has the advantage that the surface element - even if it wraps around the head of the clamping profile to varying degrees - is not kinked by a sharp-edged head shape of the clamping profile. A differently wide looping of the head portion of the clamping profile through the surface element may result in particular at different wind load on the surface element.

Furthermore, it is advantageous if the clamping profile is guided resiliently not only at a fixed angle, but arbitrarily adjustable angle relative to the main body of the holding profile. This would have the advantage that in the later assembly of the clamping device or the facade element on the outer wall of a building, the clamping profile can be adjusted individually to the given on-site angular ratios of the facade.

Further advantageous embodiments of the holding profile and the clamping device are the subject of the dependent claims.

Finally, the above object is also achieved by a facade element with the holding profile according to the invention.

According to an advantageous embodiment, the facade element on the holding devices directly or via a substructure on the wall of a building can be fastened.

The contour of the frame of the clamping device and the facade element is preferably to the outer contour of the wall or to the individual contours of certain components in the wall, such as openings for windows or doors, adapted.

Figur 1

einen schematischen Querschnitt eines erfindungsgemäßen Ausführungsbeispiels eines Halteprofils für ein flexibles Flächenelement, das an einer Wand befestigt ist;

Figur 2

einen schematischen Querschnitt eines weiteren erfindungsgemäßen Ausführungsbeispiels eines Halteprofils für ein flexibles Flächenelement;

Figur 3

einen schematischen Querschnitt des Halteprofils gemäß Figur 2, jedoch mit schematisch dargestellter Aufwölbung des flexiblen Flächenelementes;

Figur 4

einen schematischen Querschnitt eines weiteren erfindungsgemäßen Ausführungsbeispiels eines Halteprofils mit zwei gegenüberliegenden Spannprofilen für das flexible Flächenelement;

Figur 5

einen schematischen Querschnitt einer Spannvorrichtung gemäß Figur 4, jedoch mit schematisch dargestellter Wölbung des flexiblen Flächenelements;

Figur 6a-6c

verschiedene Ausführungsbeispiele der erfindungsgemäßen Spannvorrichtung; und

Figuren 7+8

schematische Draufsichten auf erfindungsgemäße Fassadenelemente

zeigen.The description is attached to eight figures, wherein

FIG. 1

a schematic cross-section of an embodiment according to the invention of a holding profile for a flexible surface element which is fixed to a wall;

FIG. 2

a schematic cross section of another embodiment according to the invention of a holding profile for a flexible surface element;

FIG. 3

a schematic cross section of the holding profile according to FIG. 2 , but with a schematically illustrated bulge of the flexible surface element;

FIG. 4

a schematic cross section of another embodiment of the invention of a retaining profile with two opposite clamping profiles for the flexible surface element;

FIG. 5

a schematic cross section of a clamping device according to FIG. 4 , but with schematically illustrated curvature of the flexible surface element;

Figure 6a-6c

various embodiments of the clamping device according to the invention; and

Figures 7 + 8

schematic plan views of facade elements according to the invention

demonstrate.

The tensioning device according to the invention will be described in detail below with reference to the figures. In all figures, the same technical features are designated by the same reference numerals.

The introductory definitions for the terms holding profile, clamping device and surface element apply to the subject matter of the invention and its embodiments described below.

Fig. 1 shows a retaining profile 100 according to the invention according to a first embodiment. The holding profile 100 comprises a main body 110a. The main body 110a is fixed to a wall 300 of a building. The main body comprises a U-profile-shaped recess 160, which is bounded on one side by a stiffening profile 110b of the base body. In the in Fig. 1 the example shown extends the recess 160 at an angle of 90 ° to the wall 300; Of course, any other angle to the main body or to the wall would be realized. The recess 160 is open on its side facing away from the wall 300. In the U-profile, a clamping profile 120 is mounted horizontally displaceable by a spring 150 resiliently. The exemplary embodiment shows a surface element 200 introduced with a low initial tension, which is guided over the rounded head 121 of the spring-loaded clamping profile 120. The surface element is tensioned and latched with a clamping insert 140 in a receiving space 112 of the main body 110a, as shown in FIG Fig. 1 also shown. In Fig. 1 is the surface element 200 shown without force by wind suction or wind pressure.

Fig. 2 shows a second embodiment, which differs from the first embodiment only in the manner of attachment of the surface element 200 to the retaining profile 100. Here is the surface element 200 z. B. attached by means of the screwed cover profile 130 on the support section 100, preferably jammed; In this respect, the cover profile is part of the fastening device in this embodiment. Alternatively, the attachment of the surface element 200 on the holding profile 100 by pressing, gluing, nailing, screwing or staples done. Also in Fig. 2 the situation is shown without wind suction or without wind pressure.

Fig. 3 In this illustration, the surface element 200 is loaded by wind suction WS. The surface element 200 moves away from the retaining profiles 100 by the suction on the right-hand side, thereby pressing the resiliently mounted clamping profile 120 into the U-profile-shaped recess 160 of the base profile 110a. Due to this resilience of the spring 150 of the clamping profile 120, the resulting tension in the tissue is significantly reduced compared to an unyielding rigid attachment without a tension profile and reduces the risk of destruction to a minimum. In the case of wind pressure WD (in Fig. 3 not shown), the surface element would be moved in the direction of the wall 300 and would then also press the spring-loaded clamping profile 120 in the retaining profile 100.

Fig. 4 3 shows a third exemplary embodiment of the self-restraining retaining profile 100 "'according to the invention. The retaining profile 100"' is here designed double-sided and accommodates two spring-mounted clamping profiles 120a, 120b. Depending on the force acting on the surface elements 200a and 200b, the springs 150a and 150b may be equally or differently pressurized.

Fig. 5 In this illustration, the surface element 200 on the left side is loaded by wind pressure WD and on the right side by wind suction WS; the wind direction is symbolized by the double arrows. The surface element 200b moves away from the main body 110a on the suction side, thereby pressing the resiliently mounted clamping profile 120b into the recess 160. Thus, the resulting stress in the surface element 200b is significantly reduced and reduces the risk of destruction to a minimum. On the side with wind pressure WD, the surface element is moved in the direction of the main body 110a and also presses the spring-loaded clamping profile 120a deeply into the recess 160.

Fig. 6a, 6b, 6c show three embodiments of inventive clamping devices 300 ', 300 ", 300"' in the form of self-supporting frame. The frames exist each of individual sections A'-1, A'-2, A'-3 ... of holding devices between which the surface element 200 (in Fig. 6 not shown) can be clamped. At least one of the sections A'-1... Is designed in the form of the retaining profile 100 according to the invention.

The clamping device 300 ', 300 ", 300"', in particular their holding profiles 100 can directly on the ground, z. As the masonry, a building, or be bolted by substructures on the ground (eg adaptation profiles of metal and / or plastic, wooden substructures, etc.).

Fig. 7 shows an example of a building facade according to the invention with 400-1 ... 400-N clad facade with vertical and horizontal outline. Of the facade elements only the surface elements, ie fabric panels 200-1 ... 200-N can be seen, which are stretched as a new facade from the roof of a building to the floor or to a window or gate edge. Belonging to the facade elements tensioning devices are covered for the outer viewer advantageously by the surface elements. Recesses are provided at gates, windows and doors. Depending on the fabric, windows can be overstretched and still allow light to enter the window behind.

Fig. 8 shows a building facade in which the fabric webs run diagonally. Even oblique tension under any angle are possible. In addition, round, convex, concave and free shapes and gradients are possible.

LIST OF REFERENCE NUMBERS

100

retaining profile

110a

body

112

accommodation space

120

clamping profile

130

Cover

140

Clamp insert

150

spring element

160

recess

200

surface element

300

wall

400

facade element

Claims (15)

1. Retaining profile (100) for retaining a sheet-like element (200), wherein the retaining profile has:

   - a basic body (110a);

   - a fastening device for fastening the sheet-like element (200) on the basic body (110a);

   - at least one spring element (150); and

   - at least one tensioning profile (120), wherein the tensioning profile (120) has a rounded head shape at its end which is directed towards the sheet-like element (200),

   characterized in that the tensioning profile is mounted resiliently for the purpose of tensioning the sheet-like element on the basic body (110a) with the aid of the spring element (150), and in that the basic body (110a) has an aperture (160), in which the tensioning profile (120) is guided in a linearly displaceable manner.
2. Retaining profile (100) according to Claim 1, characterized in that the spring element (150) is designed in the form of a helical spring, in the form of an elastic undulating strip, each preferably made of metal or plastics material, or in the form of elastic cords or hoses, preferably made of plastics material, arranged in a continuous or elastic manner.
3. Retaining profile (100) according to either of Claims 1 and 2, characterized in that the fastening device has: an accommodating space (112) in the basic body (110a), with a latching means on the walls of the accommodating space; and a tensioning insert (140), on which the sheet-like element (200) is fixed, preferably by way of its peripheral region, for latching purposes in the accommodating space (112).
4. Retaining profile (100) according to either of Claims 1 and 2, characterized in that the fastening device comprises nails, clips, adhesive or screws for the purpose of fastening the sheet-like element on the basic body (110a) by nailing, clipping, adhesive bonding or screw connection.
5. Retaining profile (100) according to one of the preceding claims, characterized by a covering profile (130), which can be fastened on the basic body (110a) for the purpose of cladding the fastening device.
6. Retaining profile (100) according to Claim 5, characterized in that the covering profile is part of the fastening device.
7. Retaining profile (100) according to one of the preceding claims, characterized in that the retaining profile is produced from metal, preferably aluminium.
8. Retaining profile (100) according to one of the preceding claims, characterized in that the retaining profile can be fastened on the wall (300) of a building with the aid of fastening means, e.g. screws.
9. Retaining profile (100) according to one of the preceding claims, characterized by two tensioning profiles which are mounted in a resilient and displaceable manner on different sides, preferably on opposite sides, of the basic body (110a).
10. Retaining profile (100) according to one of the preceding claims, characterized in that the tensioning profile is guided in relation to the basic body of the retaining profile at an angle which can be adjusted as desired.
11. Tensioning arrangement for tensioning a sheet-like element (200), having at least two retaining devices between which the sheet-like element can be tensioned, characterized in that at least one of the retaining devices is designed in the form of a retaining profile according to one of Claims 1 to 10.
12. Tensioning arrangement according to Claim 11, characterized in that a plurality of the retaining devices are arranged in the form of at least one closed frame, wherein the frame is designed in the form of a polygon or of a circle.
13. Facade element (400) having

    - a tensioning arrangement according to either of Claims 11 and 12; and

    - a sheet-like element (200), which is clamped into the tensioning arrangement.
14. Facade element (400) according to Claim 13, characterized in that the facade element can be fastened on, in particular, the wall (300) of a building directly, or indirectly via a substructure, by means of the retaining devices.
15. Facade element (400) according to Claim 13 or 14, characterized in that the contour of the frame of the tensioning arrangement is adapted to the outer contour of the wall or to the contours of openings in the wall, such as windows or doors.

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