EP1422361B1 - Retaining profile - Google Patents

Abstract

A membrane roof or temporary building construction facade has a large plastic or textile panel (M) which is supported and secured at its edges (R) by a profile anchorage clamp fitting (H). The membrane (M) terminates at its periphery in an anchorage beading profile (K) which locates within a matching groove (KK) forming part of the clamping profile (5). The clamping profile is located and clamped (2) within a surrounding metal profile (B).

Description

The invention relates to a holding profile according to the preamble of claim 1.

For example, for swimming pools, arcades, gas stations, or facades, a new technology is known, which is called architectural membrane construction. Such structures in the form of canopies or facades have retaining rails mounted on a supporting structure with a predetermined grid, in which the fields between the retaining rails spanning membranes are anchored with their edges ( WO 96/21072 A ). The membranes can be single-layer or multi-layer and consist of plastic films or textiles and either under support or rope constructions under or top side tensioned or covered or stand with or without clamping elements as so-called Pneukissen under internal pressure. The membranes can be translucent or printed or coated and often not only fulfill a covering function, but also an insulating function. In the edge of the membrane a piping is inserted into a longitudinal pocket. The edge is threaded with the piping in a metal holding profile in a molded therein Kederkanal in the longitudinal direction of the piping channel. Since such membranes may well have a length of 100 m or more, the threading is extremely tedious and time consuming, especially if the membrane under its own weight or other reasons biased away from the support rail, since the frictional resistance in the piping channel and the exit gap high is. In addition, when mounting the membrane edge, in particular from the ends of the holding profile ago must be stretched to eliminate transverse folds or to generate the ertorderliche bias of the membrane in the longitudinal direction of the holding profile. Due to the frictional resistance in the welt channel and the exit slit, however, in practice only the last few meters of the membrane edge can be somewhat tensioned, because the clamping forces are already consumed by the frictional forces at a relatively small distance from the ends of the holding profile. Therefore, when threading continuously at the same time be curious, which is tedious and time-consuming. Another Disadvantages are the expensive retaining rails and expensive retaining profiles and the fact that the membrane edge can hardly be unthreaded at a later date without damaging the membrane.

Out FR-A-2489678 a partition element is known for separating different work areas in offices. The partition wall element has an outer circumferential U-shaped groove, in which a frame-shaped edge seal made of elastomeric material is knotted. The edge seal forms a groove, which leads over a bottleneck to a Kederkanal. In the edge seal, the edge of a beaten around the edge of the partition wall element, decorative panel is either held without or with a piping.

At one off DE 43 27471 known roof system, a metal and hollow profile is set in a retaining groove of a base profile, which has a longitudinally continuous Kederkanals and a narrowed outlet gap. In the Kederkanal a flexible textile or film material is anchored with its edge, which is designed as a welt pocket with inserted piping. The welt pocket with the inserted piping is threaded from an end face of the hollow profile in the longitudinal direction of the piping channel.

Out DE 41 05 449 A is known from elastic material Kederprofil for fixing the edge of a bellows of an articulated vehicle. In the edge of the bellows a tension-resistant tensioning cable is welded, which defines the bellows edge in the welt profile, and whose ends are connected via a turnbuckle. The piping profile is mounted in a metal support profile, which keeps the outlet gap closed frictionally from the piping channel.

Like buildings in general, membrane structures are also insured. Recently, the intensity of storms or hail has increased. Although the membranes of such structures have been considered to be hail-proof or storm-proof in themselves, recent history has shown that extreme weather events can unexpectedly cause damage from storm moving objects or oversized or unfavorably shaped hailstones. This can cause significant insurance difficulties. There is therefore a need for such membrane structures to make them hail-proof or storm-proof.

The invention has for its object to provide a holding profile of the type mentioned, which allows at least a considerably simplified assembly of the membrane.

The stated object is achieved with the features of claim 1.

The departure from a retaining profile made of metal to the rubber or elastomeric retaining profile results in a wealth of advantages. The main advantage is that the elasticity of the retaining profile, at least in the region of the outlet gap, allows the outlet gap to be opened elastically to such an extent that the membrane edge with the welt can be conveniently threaded transversely to the longitudinal direction of the welt channel. Since the need for longitudinal movement of the membrane edge with the piping is eliminated during threading, the piping channel and the outlet gap can be dimensioned so narrow that ultimately a very strong clamping fit with almost ideal sealing effect for the edge of the membrane is achieved. In addition, the stretching of the membrane in the longitudinal direction of the edge to completion of the assembly is far more efficient than previously executable, because the retaining profile can stretch together with the threaded edge in the longitudinal direction, or the stretching forces over the length of the holding profile easily at least very much continue far. Another advantage is that the retaining profile can be mounted in bends in any direction due to its material, which greatly improves the design possibilities. It is possible, so to speak, to form closed frame structures from the holding profile, so that the sealing problems that previously existed with angular joint areas are eliminated. The retaining profile also serves as a receiving rail, fastener and seal. Since the retaining profile due to the material can also be bent or folded, the membrane edge can already be threaded, for example, at the manufacturer in the holding profile and transported with the folded membrane to the site. Simply by resetting the retaining profile after threading the membrane edge sits with the piping so tight that this connection is no longer solved during transport and assembly. During assembly, a locking or force distribution element is mounted in the retaining profile in order to intensify or stabilize the connection for later use. Since such membranes are usually made a little too small to be taut when installed, the threading into the holding profile is transverse to the longitudinal direction of the Kederkanals before assembly a huge advantage, which saves effort and time. Since the retaining profile provides a sealing function, no additional sealing elements are required. Thanks to the tight fit of the edge with the piping in the holding profile, it is not always necessary to weld a pocket for the piping in the membrane edge, but the edge only needs to be folded around the piping and threaded with this. This can be sufficient even with multi-layered, inflated to Pneukissen membranes and saves the pocket welding. The mounting of the retaining profile by means of suitable fastening means, such as clamping hooks or screws in the statically required intervals. For further load distribution is the blocking or Kraftverteilelement of stiffer material, which is mounted positively and / or non-positively on the correspondingly shaped retaining profile. The function of the load distribution can also be taken over by the respective fastening means, for example by hooks with wide support ends or continuous metal profiles. Corners can be rounded without impact, ie the known sealing problem at the joint of all conventional systems with press seals does not occur. Another advantage is that airtight tire pads of two different membrane materials can be formed and fixed without welding, if these materials can not be welded together. The cross-section of the holding profile can perform additional tasks, such as holding / Abpolsterungsfunktionen when placed on the structure, eg in a vertical gutter edge, or when connecting adjacent seals, or a thermal separation function.

A membrane structure with an environmental protection membrane in the holding profile offers a much higher level of protection against environmental damage than was previously possible. For example, the environmental protection membrane makes it easy to meet insurance-related requirements. The environmental membrane keeps the direct impact of storm-carried objects or large hailstones away from the actual membrane of the structure, can provide an additional insulation effect, and maintains the function of the structure even if the actual membrane is damaged.

Further advantageous embodiments will become apparent from the dependent claims.

Fig. 1

einen Querschnitt eines Teils eines Membran-Bauwerks mit einem Halteprofil,

Fig. 2

einen Querschnitt einer anderen Ausführungsform des Halteprofils,

Fig. 3

einen Querschnitt einer anderen Ausführungsform des Halteprofils,

Fig. 4

eine einfache Anbringungsart eines Halteprofils,

Fig. 5

eine anderen Art eines Halteprofils,

Fig. 6

schematisch die Ausbildung eines Membranen-Randes ohne Tasche,

Fig. 7

eine andere Ausführungsform in einem Schnitt, und

Fig. 8

einen Querschnitt durch einen Teil eines Membran-Bauwerks.

Embodiments of the subject invention will be explained with reference to the drawings. Show it:

Fig. 1

a cross section of a part of a membrane structure with a holding profile,

Fig. 2

a cross section of another embodiment of the retaining profile,

Fig. 3

a cross section of another embodiment of the retaining profile,

Fig. 4

a simple method of attachment of a retaining profile,

Fig. 5

another type of holding profile,

Fig. 6

schematically the formation of a membrane edge without pocket,

Fig. 7

another embodiment in a section, and

Fig. 8

a cross section through a part of a membrane structure.

In Fig. 1 a support 1 of a supporting structure, not shown in more detail, can be seen from a membrane construction B, which serves to anchor at least one membrane M (in the form of a plastic film or a textile.) The membrane M is at least single-layered (indicated by dashed lines in two layers or even three layers) Edge R of the membrane M is fixed with the aid of a welt K in a welt channel KK of a holding profile H, wherein the edge R extends through an exit slit S of the holding profile H to the outside, for example, starting from a Kederkanal KK lying constriction V. The holding profile H. consists at least in the region of the Kederkanals KK or the exit slit S, preferably entirely, of rubber or elastomer G, for example vulcanized EPDM or silicone rubber or the like and is to be referred to as soft elastic, ie, is extensible in the longitudinal direction and transverse to the longitudinal direction of the Kederkanals KK bendable practically in all directions.

The retaining profile H is fixed on the support 1 with retaining clips 3 and fasteners 2. Furthermore, a diaphragm 4 may be provided.

The holding profile H has in the embodiment shown a thick-walled main profile part 5 with here convexly rounded outer contour 6 and a sealing lip structure 7 for cooperation with the support 1. Adjacent to the Kederkanal KK extends from the main profile part 5 a thin-walled clamping lip 8 away, the exit slit S to one side limited, with the main profile part 5 an insertion channel for a continuous, for example, force distribution element 10, which also forms a UV protection for the holding profile, and in a sealing lip 9 expires, which is pressed sealingly on the membrane M. On the other side of the exit slit S this is limited by a thick-walled support lip 13, which is for example shorter than the clamping lip 8 and for example a ribbed bottom 14 has. In the transition from the main profile part 5 to the clamping lip 8, a groove 11 may be formed, in which either a filling profile, not shown, can be knotted, or facilitates the elastic expansion of the outlet gap for reasons explained below. Also in the exit slit S, a structuring 12 may be provided, for example in the form of longitudinal ribs with intersecting sealing ridges. The Kederkanal KK is closely matched in cross-section to the cross section of the welt K with the edge R, to produce an intense sealing function as soon as the exit slit S, as shown, is closed again. Also in the exit slit S itself a double-sided sealing function is achieved at the edge R. The edge R may otherwise be formed as a welded pocket for threading the welt, or be formed only by an envelope without welding. It can be set with only one piping K several membranes M at the same time.

The edge R with the piping K can be threaded in various ways in the welt channel K of the holding profile H. Thus, the edge R with the piping K can already be threaded at the fabricator of the membrane M and already attached to the membrane M during transport and assembly. On the other hand, of course, the edge R can be threaded with the piping K only at the installation site. In any case, the threading takes place transversely to the longitudinal direction of the Kederkanals KK by temporary elastic expansion of the exit slit S, for example by means of an unspecified auxiliary device. The exit slit S is widened so far that the welt K can be easily threaded transversely to the longitudinal direction of the Kederkanals KK into this before the exit slit S closes automatically again thanks to the elastic resilience of the material of the holding profile 5 and the intensive Sealing function generated. This can also be done at the site by the retaining clips 3 are initially arranged only loosely with the power distribution element 10. The retaining profile H is stretchable in the longitudinal direction, together with the edge R and the piping K, so that the membrane can be smoothly stretched smoothly. Furthermore, the retaining profile H is bendable in any direction and can also be mounted in a course that deviates from a straight line, if this is necessary for architectural or other reasons. Finally, the retaining profile H can also bring into rounded corners, in which no the sealing function interrupting Shock arises. Even a closed frame from the holding profile H is possible, so that all the edges of the membrane are uniformly stretched and sealed.

In Fig. 2 K is the K piping part of a filling profile F, which is knotted with the wrapped around it edge R of the membrane M in the Kederkanal KK with widening of the exit slit S, and that transverse to the longitudinal direction of the Kederkanals KK. Alternatively, the filling profile F could also be threaded into a welded pocket of the edge R. The retaining profile H may comprise different cross-sectional areas a, b with different Shorehärten and / or different rubber or elastomeric materials, or reinforcements A, or even another filling profile P, which enhances the locking effect of the exit slit S and introduced after threading. The membrane M can be one or more layers.

In Fig. 3 are two membranes M, eg of materials that are not welded together, anchored in the same holding profile H, by means of two piping K, which are set together in the Kederkanal KK and the exit slit S. The edges R are either turned only around the piping K, or provided welded pockets in which the piping K are threaded.

In Fig. 4 is the retaining profile H on the support 1, for example a part of a U-profile, mounted, with a holding and sealing legs 15. The membrane M can be two-ply or multi-ply. The retaining clip 3 or a continuous clip profile here is a UV protection for the retaining profile H.

In Fig. 5 a three-layered membrane M is shown with a pocket T at the edge, in which the piping K is threaded.

In Fig. 6 is clarified that the edge R of the membrane M is only wrapped around the piping K, without welding, and that the edge R is tightly anchored by the sealing and clamping action of the retaining profile, not shown here (indicated by arrows 16).

In Fig. 7 two membranes M are anchored each with its own holding profile H on the support 1. The two holding profiles H have connecting structures 17 in order to be tightly fixed or combined so that the connecting area is also airtight. Here, for example, the upper retaining profile H can be removed with the upper diaphragm, while the lower diaphragm M remains with its holding profile H in the installed position. Each retaining profile H could increase the clamping force for the other, especially during transport and during assembly.

Fig. 8 illustrates a part of a membrane structure B, of which a support rail 18 for the edges of two membranes M is mounted on the support structure T. The membranes M are, for example, multi-layered and anchored with Kedem K in their edge regions R inside the support rail 8 in the usual way. The holding rail 18 is closed by an upper support 1, with which the sealing effect for the membranes M is generated. With the fasteners 2 for the support 1 brackets 3 are also tightened, the holding profiles H for anchoring the edge of an environmental membrane M 'set above the membrane M. The essence of this solution is that the actual membrane is protected by the additional environmental protection membrane M 'against environmental influences such as storm damage or hail damage, ie, that the environmental membrane M' here performs the function of a sacrificial membrane, optionally with an additional insulation effect , The environmental membrane M 'can rest directly on the uppermost layer of the membrane M, or form with this an intermediate gap, in which there is pressure.

The environmental membrane M 'is anchored by the retaining profile H made of rubber or elastomer, which seals with its sealing lip structure 7 on the support 7, also with the support lip 13 and the bottom 14, the top of the uppermost layer of the membrane M seals, and also the Keder K and the edge of the environmental membrane M 'anchored, as explained above. The thin-walled clamping lip 8 is fixed by a force distribution element 10 in the sealing position of the outlet gap S. It is also essential that the piping K with the edge R of the environmental membrane M 'threaded transversely to the longitudinal direction of the Kederkanals KK in this is, under elastic expansion of the exit gap. The sealing lip 9 seals on top of the environmental membrane M 'from.

The retaining profile H can already be connected to the environmental protection membrane M 'at the clothing manufacturer or elsewhere, which facilitates assembly. Alternatively, the environmental membrane M 'at the construction site in the manner described transversely to the longitudinal direction of the Kederkanals KK are threaded into this. The environmental membrane M 'may be a film or textile such as at least one of the layers of the other membranes M.

In the event that the retaining profile is mounted on the support rail 18 during a retrofit, it is recommended to use the in Fig. 8 shown fastening. If, in contrast, it is planned from the outset to additionally install an environmental membrane M ', the retaining rail 18 can be designed in advance (not shown) so that the retaining profile H can be comfortably fixed and load-distributing and sealingly clamped in other ways.

The holding profile H could also be pressed into a kind of channel, which determines the holding profile automatically or with local bars in the installation position, if necessary. Taking advantage of the tension of the membrane. Here a wedge shape or dovetail structure could be used.

Claims (11)

1. Holding profile (H) for at least one edge (R) of a membrane (M, M') in a membrane building (B), comprising a longitudinally continuous weather strip channel (KK) for the membrane edge (R) comprising a weather strip (K), and comprising a membrane exit gap (S) which extends via a throat (V) sidewards from the weather strip channel (KK) and in parallel with the weather strip channel, characterised in that the holding profile (H), at least in the area of the weather strip channel (KK) and the exit gap (S), is made from self-returning rubber or elastomer (G) and the exit gap (S) can be widened elastically for threading the membrane edge (R), including the weather strip (K), into the weather strip channel (KK), crosswise to the axis of the weather strip channel, that the weather strip channel (KK) is formed in a profile main part (5) from which a thin-walled clamping lip (8) extends away that confines the exit gap (S) at one side, that a thick-walled support lip (13) extends away from the profile main part (5) as a further boundary of the exit gap (S) opposite the clamping lip (8), that the thin-walled clamping lip (8) with the profile main part (5) confines an exterior insertion channel for a tensioning or load distributing element (10), and that the thin-walled clamping lip (8) terminates in a sealing lip (9).
2. Holding profile as in claim 1, characterised in that the holding profile (H) is made entirely from rubber or elastomer, preferably with integrated cross-sectional regions (a, b) having different Shore-hardness and/or is made up of differing plastic materials or rubber materials (a, b) and/or with reinforcements (A) and/or at least with a filler profile (P).
3. Holding profile as in claim 1, characterised in that the holding profile (H) is made expandable entirely in longitudinal direction.
4. Holding profile as in claim 1, characterised in that the holding profile (H) can be brought into a sealing fit over the length of the weather strip channel (KK), preferably also in the exit gap (S), around the membrane edge (R) threaded in with the weather strip (K), by a filler profile (P) and/or the tensioning or load distributing element (10).
5. Holding profile as in claim 1, characterised in that the holding profile (H) is made from extruded, vulcanized or cross-linked EPDM.
6. Holding profile as in claim 1, characterised in that the weather strip channel (KK) is sized to simultaneously receive two membrane edges (R) each having one weather strip (K).
7. Holding profile as in claim 1, characterised in that the holding profile (H) is constituted by at least two separately combined, partial-holding profiles (H) for a respective membrane edge (R) with weather strip (K).
8. Holding profile as in claim 1, characterised in that inside the exit gap (S) at least one of the clamping lip (8) and the support lip (13) is provided with a longitudinal serrated structure (12).
9. Holding profile as in claim 1, characterised in that a grooving (11) is formed in the transition from the clamping lip (8) into the profile main part (5).
10. Holding profile as in claim 1, characterised in that the profile main part (5) has a sealing lip structure (7) at the side facing away from the exit gap (S).
11. Holding profile as in claim 1, characterised in that in the holding profile (H) mounted on a holding rail (18) of a membrane building (B), an at least single-layered environment protection membrane (M') is anchored with its edge (R) and a weather strip (K), which is arranged at the side facing the outer environment above an at least single-layered membrane (M), that the membrane (M) is secured with its edge (R) and a weather strip (K), separated from the environment protection membrane (M'), on the holding rail (18) and sealed by the support lip (13) of the holding profile (H).

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