DE102011081255B4 - Fastening device for fastening membrane constructions - Google Patents

Abstract

Fastening device (1) for fastening membrane constructions with at least one outer flexible membrane (41, 42, 42 ', 42' ') and at least one inner flexible membrane (51, 52, 52', 52 ''), wherein the fastening device (1 ) comprises:? at least one first piping rail (13) for attaching the at least one outer flexible membrane (41, 42, 42 ', 42' '); Figs; at least one second piping rail (14) for attaching the at least one inner flexible membrane (51, 52, 52 ', 52' '); Figs; a housing profile (11, 11 ') which is adapted to receive the at least one first piping rail (13) and the at least one second piping rail (14); Figs; a web profile (15) which is in contact with the flexible layers (41, 42, 42 ', 42' ', 51, 52, 52', 52 '') of the membrane construction and thus on the housing profile (11, 11 ') is fixed so that the at least one outer flexible membrane (41, 42, 42 ', 42' ') from the at least one inner flexible membrane (51, 52, 52', 52 '') is spaced.

Description

The present invention relates to a fastening device for fastening membrane constructions according to claim 1. In particular, it is a fastening device for fastening membrane constructions with at least one outer flexible membrane and at least one inner flexible membrane.

The publication DE 202 17 990 U1 relates to a retaining profile for an edge of a membrane for membrane structures. The conventional retaining profile has a longitudinally extending welt channel for the membrane edge having a piping and a membrane outlet gap extending laterally from the piping channel via a constriction to form the piping channel. The retaining profile is formed in the region of the Kederkanals and the exit slit of resilient rubber or elastomer, wherein for threading the membrane edge with the piping in the Kederkanal transversely to the axis of the Kederkanals the exit slit is elastically expandable.

The publication DE 10 2009 013 729 A1 relates to a membrane component containing a membrane element and a retaining profile. The membrane element is by means of a welt pocket, in which there is a piping, with a piping rail of the holding profile in operative engagement. At least one side of the membrane element can be detached non-destructively from the retaining profile by a relative change in the cross section of the welt.

The publication DE 30 11 308 A1 relates to a pneumatically controllable mold and surface element for use in construction as a space-covering, space-dividing or space enclosing component.

The publication DE 299 01 970 U1 relates to a tent segment for improving climatic conditions within a tent.

The publication EP 1 348 823 B1 relates to a building envelope element with at least one holding device and with at least one foil cushion, the two outer film layers, which form a gas-tight closed cavity between them, and a mounting portion, in which the two outer film layers are interconnected.

The publication EP 0 106 920 A1 relates to a sunroof system for a building structure, which can influence the climatic conditions within the building.

The publication US 2008/0142064 A1 relates to a frame construction for a sunroof.

Membrane constructions are known from the prior art and have long been used, for example, in the form of roofs or facades. For example, these membrane constructions are often used for facades or roofs for buildings such as football stadiums, traffic buildings, roofs of shopping streets or trade fairs. The flexible membranes in the membrane construction can be single-layer or multi-layered and consist of plastic films or textiles and can be tensioned or covered under or over the top either by supports or rope constructions.

Frequently, the flexible membranes are preloaded and stabilized by means of mechanical or pneumatic pretensioning. In the case of pneumatic preloading, the membrane design is also called pneum. A variant of the tires are the so-called pneumatically supported cushions. They are also often called only pillows. The pillows, which consist of at least two layers, are created by joining the flexible membranes to almost media-tight chambers (volumes). Two-ply pillows form one chamber (one volume), three-ply pillows two chambers (two volumes), etc. The chambers (volumes) are filled with a medium. The medium is often air. Each volume has a pressure difference at the interfaces to another volume or at the interfaces with the environment. The pressure difference leads to a stress and to a curvature of the flexible membranes.

At external loads, the pressures and the pressure differences at the interfaces and thus also the position of the flexible membranes and the shape of the membrane element change. The pressure difference at the interface of a volume causes a bias of the respective connected flexible membranes. The bias is used for stability and deformation reduction of the flexible membranes and the entire pad at external loads.

Ethylene tetrafluoroethylene co-polymer, abbreviated ETFE or E / TFE, is frequently used as the film material for the flexible membranes. The connected flexible membranes transmit external loads, caused for example by wind, snow and / or water, together with their own weight and possibly existing bias in a fastening device, via which all the above loads are forwarded together with the weight of the fastening device in the support structure.

The flexible membranes have at their edges a welt pocket in which a piping, so a mostly approximately round cord, located. It is often made of EPDM, PVC or other plastic, sometimes metal. The flexible membranes are often by Kedertasche, piping and piping rail in operative engagement with the fastening device. The fastening device is by means of various joining techniques, usually by means of screw connection, in operative engagement with a support structure, ie it is permanently connected to the support structure. The support structure is often a solid component, a structural part or a foundation in the case of buildings.

In conventional fastening devices, the adjacent transition areas laterally of the fastening device, in addition to the fastening device itself, form a so-called thermal bridge, since the flexible membranes converge in one point or line at the inlet point of the fastening device, for example, all tires with only one circumferential fastening device. This is because there is no significant distance, or no significant heat-insulating media or air cushion between the outer and inner flexible membranes of the membrane design exists and the component thickness of the membrane element is therefore extremely low.

Due to the above-mentioned problem, the present invention has for its object to provide a fastening device for membrane constructions, which significantly reduces the heat flow through the fastening device and minimizes the formation of condensation.

This object is solved by the subject matter of independent claim 1.

Accordingly, the present invention is a fastening device for fastening membrane constructions having at least one outer flexible membrane and at least one inner flexible membrane, wherein the fastening device at least a first Kederschiene for securing the at least one outer flexible membrane and at least one second Kederschiene to Attaching the at least one inner flexible membrane. In addition, the fastening device according to the invention has a housing profile, which is adapted to receive the at least one first piping rail and the at least one second piping rail. Further, a web profile is provided which is in contact with the flexible membranes of the membrane construction and is secured to the housing profile such that the at least one outer flexible membrane is spaced from the at least one inner flexible membrane.

The fastening device according to the invention has a number of advantages. Thus, the fastening device according to the invention is used in a particularly advantageous manner to prevent thermal bridges between the outer flexible membrane and the inner flexible membrane, since the outer membrane according to the invention is spaced by a web profile of the inner membrane. Thus, the risk of dew point undershooting is minimized within the membrane construction by the fastening device according to the invention.

Also, it is in the fastening device according to the invention, by the use of multiple piping rails, very easy to replace individual membranes of the membrane construction, which significantly reduces maintenance costs.

Advantageous developments of the fastening device according to the invention are specified in the dependent claims.

Thus, it is provided in an advantageous realization of the fastening device according to the invention that the fastening device has at least one insulating element which is arranged to interrupt thermal bridges releasably between the at least one outer flexible membrane and the at least one inner flexible membrane. Thus, the fastening device according to the invention, in addition to air-filled cavities, equipped with at least one thermal element. The thermal insulation element may consist of one or more materials with the lowest possible heat transfer coefficient. Porous materials are also possible, provided that they have a compressive strength necessary for power transmission. The use of such thermal insulation elements in combination with the air-filled cavities of the fastening device to a reduction of the heat flow through the fastening device, in comparison with previously known fastening devices. In addition, the thermal insulation element according to the invention is not included within the membrane structure, so for example welded, glued or sewn, but is locally fixed within the easily accessible fastening device. Thus, the thermal insulation element according to the invention can be used and removed without the membrane design, z. B. a two or more pillows must be opened.

According to a further embodiment of the fastening device according to the invention, at least the second piping rail has a recess for receiving the at least one insulating element. As already described above, the insulating element according to the invention is detachable between the at least one outer flexible membrane and the at least one inner flexible Membrane arranged. The additional inclusion of the thermal insulation element in a recess of the second piping rail, it is ensured that the second thermal insulation element is always positioned correctly. This facilitates above all the assembly of the membrane construction on the fastening device according to the invention.

According to a further implementation of the fastening device according to the invention, the web profile is in contact with another flexible membrane which extends between the at least one outer flexible membrane of the membrane construction, so that an airtight barrier between the fastening device and a volume which is between the at least one outer flexible membrane and the at least one inner flexible membrane is formed. By connecting a further flexible membrane with the at least one outer flexible membrane and the at least one inner flexible membrane, for example by means of welding, gluing or sewing, between the outer flexible membrane and the inner flexible membrane creates a further volume, which at overpressure or negative pressure the position of the flexible membranes and their bias influences. This volume with the other flexible membrane leads in the fastening device according to the invention to a greatly reduced heat flow through the entire system. The reduction of the heat flow is accompanied by a further reduction of the risk of dew point undershoot and condensate failure in the fastening device and at the adjacent transition region of the flexible membranes.

According to a further aspect of the invention, the further flexible membrane consists of ETFE film. By forming the further flexible membrane made of ETFE film, it can be easily connected to the inner flexible membrane and the outer flexible membrane of the membrane construction and thus reliably prevents the heat transfer through the fastening device according to the invention.

According to a further embodiment of the fastening device according to the invention, this further comprises an insert profile, which is detachably connected to the housing profile and is adapted to attach the piping rails to the fastening device. The insert profile is used in particular the load transfer from the flexible membranes in the housing profile. Depending on the number and configuration of the keder rails located in the fastening device, the insert profile according to the invention can be designed differently. Thus, it is fundamentally also conceivable that the fastening device according to the invention can be converted at any time to the use of several or fewer piping rails. Accordingly, it is particularly possible to add further flexible membranes to the fastening device according to the invention as desired.

Particularly advantageously, the insert profile is detachably connected to the housing profile by a screw connection with a blind-threaded bore. Through the use of a screw connection with blind hole drilled hole, the connection between the insert profile and the housing profile is effectively protected against environmental influences and thus guarantees a long-lasting anchoring of the piping rails to the fastening device according to the invention.

According to a further embodiment of the fastening device according to the invention, the housing profile has a cover element, which is detachably connected to the insert profile. Thus, it is very easy to mount the factory prefabricated attachment device on the site. For this purpose, it is only necessary to open the housing profile of the fastening device by unscrewing the lid member. Preferably, the cover element is connected via a fastening element, in particular fastening screw, with the insert profile and thus with the lower part of the housing profile.

After a further implementation, the fastening device has at least one second insulating element, which is arranged between the cover element and the at least one outer flexible membrane. The at least one second thermal insulation element serves to further reduce thermal bridges within the fastening device according to the invention. The at least one second thermal insulation element according to the invention is designed in such a way that it can be introduced quickly and easily into the interior of the interior during the assembly of the fastening device.

Advantageously, the at least one second heat-insulating element is designed such that the at least one first piping rail is held by the second heat-insulating element. As will be explained later with reference to the figures, it is thus possible to fix the piping rail within the fastening device and at the same time to effectively prevent thermal bridges within the fastening device.

According to a further realization, the fastening device according to the invention may have a securing element for securing against the jumping out of the at least one first welt rail from the insert profile. This Securing element is particularly advantageous when mounting a membrane construction on the fastening device according to the invention.

According to a further realization, the housing profile of the fastening device according to the invention may have groove-like channels on the underside and / or on lateral flanks, for fastening the fastening device to a support structure. For example, it is conceivable to take hammer screws in the groove-like channels of the housing profile and to connect them to the supporting structure.

According to a further embodiment, the fastening device according to the invention has at least one sealing profile which is designed such that water present in the fastening device can be removed via the sealing profile. In this way, in case of water ingress or formation of condensate in the fastening device, the accumulated water from the fastening device can be passed. For this purpose, it is conceivable that the above-mentioned sealing profile is channel-shaped and, according to an existing gradient, can discharge water from the fastening device via a drainage openings arranged at the lowest point.

According to a further realization, the first piping rail may have a diameter which is larger or smaller than the diameter of the second piping rail. By attaching piping rails with different diameters, it is possible to attach membrane structures with different thicknesses of flexible membranes to the fastening device according to the invention. Thus, it would be conceivable, for example, to attach membrane constructions to the fastening device according to the invention, which have an outer membrane which is thicker than the inner flexible membrane.

Embodiments of the invention are explained in more detail below with reference to the illustrations in the figures. Showing:

1 Embodiment of a membrane construction with inventive fastening device;

2 Section through an embodiment of the fastening device according to the invention;

3 Section through the fastening device according to 2 with support ropes;

4 perspective view of a web profile according to the invention, which is connected to the flexible membranes of a membrane construction of four flexible membranes;

5 perspective view of a membrane construction of two flexible membranes;

6 perspective view of a membrane construction of eight flexible membranes; and

7 perspective view of an embodiment of the housing profile of a fastening device according to the invention.

In the following description of the figures, the same or the same parts are provided with the same reference numerals.

In 1 is an example of a membrane construction with a fastening device according to the invention 1 shown. The membrane construction shown here is a membrane construction consisting of two so-called membrane cushions. The membrane construction has first and second outer flexible membranes, respectively 41 . 42 and a first and second inner flexible membrane 51 . 52 on. As it is already through 1 is shown schematically, the edge regions of the two outer flexible membranes 41 . 42 from the edge regions of the two inner flexible membranes 51 . 52 by the fastening devices according to the invention 1 spaced, whereby effectively a higher thermal insulation can be achieved.

Specifically, the in 1 illustrated membrane construction thus four flexible membranes on which three volumes 71 . 72 . 73 be formed. It should be mentioned at this point that it is in the in 1 illustrated embodiment is only an embodiment. Accordingly, it is also conceivable that the fastening device according to the invention 1 a membrane construction with up to eight superimposed flexible membranes (cf. 6 ) to fix.

Since the illustrated membrane construction is a pneumatically tensioned membrane cushion, it may, for example, be a media inlet 61 have, over which the diaphragm construction, for example, compressed air can be supplied. For filling the volumes 71 and 73 are overflow valves 421 . 511 between the middle volume 72 and the upper and lower volumes, respectively 73 . 71 intended. For individual adjustment of the curvature of the membrane construction has both the upper volume 73 as well as the lower volume 71 a media outlet 62 . 63 on.

2 shows a section through an embodiment of the fastening device according to the invention 1 on which on each side a membrane construction with four flexible membranes 41 . 42 . 51 . 52 (see. 1 ) is attached. For reasons of simplicity, in the following only one side of the fastening device 1 However, it should be noted here that the fastening device 1 is preferably constructed axisymmetric (see. 2 and 3 ).

For the four flexible membranes 41 . 42 . 51 . 52 it is a first or second outer flexible membrane 41 . 42 and a first and second inner flexible membrane 51 . 52 , which is a membrane construction according to 1 form. As shown, the fastening device 1 at least one first piping rail 13 for securing the first and second outer flexible membranes, respectively 41 . 42 on. Specifically, the first outer membrane 41 along a connection area 43 with the second outer membrane 42 connected and thus forms a welt pocket. The welt pocket is in the first piping rail 13 introduced and there by the piping 44 fixed. A second piping rail 14 serves for the first and second inner flexible membrane 51 . 52 on the fastening device according to the invention 1 to fix. Analogous to the two outer flexible membranes 41 . 42 , are also the two inner flexible membranes 51 . 52 for forming a welt pocket along a connection area 53 connected with each other. The connection of the first inner or outer flexible membrane 41 . 51 with the respective second inner or outer flexible membrane 42 . 52 can be done for example by welding, gluing or by a seam.

The connection of the four flexible membranes 41 . 42 . 51 . 52 along their connecting areas 43 . 53 is exemplary in 4 shown. Examples of membrane constructions with two or eight flexible membranes are in the 5 and 6 shown. Again, the individual flexible membranes 41 . 42 . 42 ' . 42 '' . 51 . 52 . 52 ' . 52 '' along connecting areas 43 . 53 Welded, glued or sewn together. As in 6 represented by the connection of the four outer flexible membranes 41 . 42 . 42 ' . 42 '' three upper volumes 73 . 73 ' . 73 '' while through the connection of the four inner flexible membranes 51 . 52 . 52 ' . 52 '' three lower volumes 71 . 71 ' . 71 '' arise. Thus, there are a total of six preferably airtight volumes between the membranes of the outer flexible membranes 41 . 42 . 42 ' . 42 '' and the inner flexible membranes 51 . 52 . 52 ' . 52 '' , As will be explained in more detail below, arises by the invention further flexible membrane 16 a seventh airtight volume 72 which is between the fourth outer flexible membrane 42 '' and the first inner flexible membrane 51 lies.

The fastening device according to the invention 1 ( 2 and 3 ) further includes a housing profile 11 . 11 ' on, which is adapted to the at least one first piping rail 13 and the at least one second piping rail 14 take. As will be explained in more detail below, are the first and two second piping rails 13 . 14 in particular by a deployment profile 12 within the housing profile 11 . 11 ' arranged.

The fastening device 1 also has a web profile 15 on which with the flexible membranes 41 . 51 the membrane cushion is firmly connected and so on the housing profile 11 . 11 ' attached is that the outer flexible membranes 41 . 42 from the inner flexible membranes 51 . 52 are spaced. Consequently, by the illustrated fastening device 1 higher demands on the heat protection of systems made of flexible membranes with a circumferential fastening device 1 be met with, without the need for two, attached at different levels fasteners.

As already mentioned above, it is problematic in the case of the fastening devices known from the prior art that the flexible membranes attached thereto converge on the fastening device in a line, since they are connected there to one another as airtight a component as possible. This leads to a very low component thickness with low thermal insulation effect and correspondingly high heat transfer. In contrast, it is in the fastening device according to the invention 1 provided that at least the two outer flexible membranes 41 . 42 , through the bar profile 15 , from the two inner flexible membranes 51 . 52 separated, so at a distance from each other, on the fastening device 1 be attached.

For interrupting thermal bridges, the illustrated fastening device 1 furthermore at least one first thermal insulation element 24 on which releasably between the two outer flexible membranes 41 . 42 and the inner flexible membranes 51 . 52 is arranged. As shown, this is at least a first thermal insulation element 24 especially hollow. However, it is of course also conceivable that the at least one first thermal insulation element 24 is solidly formed. The at least one first thermal insulation element 24 is constructed of one or more materials with the lowest possible heat transfer coefficient. It is particularly advantageous that the illustrated at least one thermal insulation element 24 not included within the membrane design is but detachable within the fastening device 1 located. Thus, it is for the replacement of the at least one first heat-insulating element 24 only necessary the housing profile 11 . 11 ' the fastening device 1 to open and the at least one first thermal insulation element 24 to remove.

As it continues the 2 and 3 can be removed, has the at least one second piping rail 14 a recess for receiving the at least one first heat-insulating element 24 on. As a result, the assembly of the at least one first heat-insulating element 24 much easier and the correct positioning of the heat-insulating element 24 guaranteed.

To reduce the heat flow through the fastening device 1 stands the bar profile 15 with another flexible membrane 16 in contact. The other flexible membrane 16 extends between the two outer flexible membranes 41 . 42 and the two inner flexible membranes 51 . 52 making an airtight barrier between the fixture 1 and a volume 72 ( 4 . 5 . 6 ), which extends between the two outer flexible membranes 41 . 42 and the two inner flexible membranes 51 . 52 is created. The bar profile 15 as well as the associated further flexible membrane 16 Can with the adjacent flexible membranes 42 . 51 be connected so that the web profile 15 and the other flexible membrane 16 - as in the 4 . 5 and 6 shown - are formed arcuate segment. Alternatively, however, it is also conceivable that the web profile 15 as well as the other flexible membrane 16 are formed angular.

The other flexible membrane 16 is with the two outer flexible membranes 41 . 42 as with the two inner flexible membranes 51 . 52 connected. This compound can be, for example, by welding, gluing or sewing the other flexible membrane 16 with the second outer and the first inner flexible membrane 42 . 51 respectively. It is generally conceivable that the connection along the connection areas 43 . 53 along which also the flexible membranes 41 . 42 respectively. 51 . 52 connected to each other extends. Alternatively, it is of course also possible, the other flexible membrane 16 at second connection areas 43 ' . 53 ' with the adjacent flexible membranes 42 . 51 connect to.

In this context, again on the 6 pointed. According to the embodiment according to 6 is the other flexible membrane 16 at second connection areas 43 ' . 53 ' with the adjacent flexible membranes 42 '' . 51 connected. By connecting the other flexible membrane 16 at second connection areas 43 ' . 53 ' will better hold the connection between the flexible membranes 16 . 42 '' . 51 guaranteed.

Coming back to the 2 to 4 arises between the second outer flexible membrane 42 and the first inner flexible membrane 51 an airtight volume 72 , which leads to a greatly reduced heat flow through the entire system. The other flexible membrane 16 is over the bar profile 15 curious and can along the connecting areas 43 . 53 or along the second connection areas 43 ' . 53 ' with the second outer flexible membrane 42 or the first inner flexible membranes 51 get connected.

The other flexible membrane 16 is preferably made of ETFE foil. As well as the outer and inner flexible membranes 41 . 42 . 42 ' . 42 '' . 51 . 52 . 52 ' . 52 '' Thus, if the membrane construction is conventionally made from ETFE film, it is possible to produce a good bond (eg by welding).

As already mentioned above, the fastening device 1 Furthermore, a deployment profile 12 which is detachable with the housing profile 11 . 11 ' is connected and adapted to the piping rails 13 . 14 on the fastening device 1 to install. Depending on the number and configuration of the fastening device 1 located piping rails 13 . 14 can the deployment profile 12 be formed differently. Thus, it is fundamentally also conceivable that the fastening device according to the invention 1 , by using a new application profile 12 , at any time on the attachment of several or less piping rails can be converted.

The illustrated application profile 12 is by a screw connection 22 with blind hole threaded detachable with the housing profile 11 . 11 ' connected. Furthermore, this has in the 2 and 3 illustrated housing profile 11 . 11 ' the fastening device 1 a lid member 11 ' which is detachable with the insert profile 12 connected is. In detail, the cover element 11 ' while using a fastening screw 21 , which in a screw of the insert profile 12 is screwed in, with the insert profile 12 and thus with the lower part of the housing profile 11 connected. Through the cover element 11 ' is the installation and maintenance of the fastening device according to the invention 1 greatly simplified. In addition, the housing profile serves 11 . 11 ' , by the connection of the lid member 11 ' with the lower part of the housing profile 11 as a clamping profile, which is adapted to the at least one outer flexible membrane 41 . 42 . 42 ' . 42 '' such as the at least one inner flexible membrane 51 . 52 . 52 ' . 52 '' pinch.

Between the lid element 11 ' and the mission profile 12 is located advantageously at least a second thermal insulation element 26 which serves to thermal bridges within the fastening device according to the invention 1 continue to reduce. As can be seen, the at least one second thermal insulation element 26 be formed such that the at least one first piping rail 13 through the second thermal insulation element 26 is held. In detail, the at least one second thermal insulation element 26 have for this purpose projecting edges, which in the at least one first piping rail 13 intervention.

The in the 2 and 3 illustrated fastening device 1 also has securing elements 20 for securing against jumping out of the at least one first piping rail 13 from the deployment profile 12 on. Specifically, it is the fuse elements 20 To pass pieces, which behind the at least one first piping rail 13 , in the deployment profile 12 , clamped around the first piping rail 13 with the insert profile 12 to get caught. This can in particular during the assembly of a membrane construction on the fastening device according to the invention 1 be beneficial because the first piping rails 13 thus already before closing the cover element 11 ' securely on the fastener 1 is attached.

As shown, the housing profile 11 . 11 ' , in particular the lower part of the housing profile 11 , groove-like channels 30 . 32 on the underside and / or on lateral flanks on to the fastening device 1 to be attached to a support structure (not shown). Like it 3 can be seen, in particular, hammer screws in the channels 30 respectively. 32 be recorded. From the lower part of the housing profile 11 The loads are transferred via standard hammer screws in the support structure. As already mentioned, the channels are used to hold the hammer of the hammer bolt 30 on the lower side of the holding device or the channels 32 on the lateral flanks of the holding device. In particular, especially the lateral channels 32 to accommodate such hammer bolts used to initiate loads of wire, rope or belt supports 34 in the fastening device 1 are provided.

The 2 and 3 It can also be seen that the fastening device at least a lower and an upper sealing profile 17 . 18 has, which are designed to close the butt joints of the fastening device as close as possible, whereby the cavities present in the fastening device have a relatively low Luftkonvektion and a small exchange of trapped air with the ambient air. In detail, the sealing profiles serve 17 . 18 in addition, in combination with the bar profile 15 , the inner and outer flexible membranes 41 . 42 . 51 . 52 at their connection areas 43 . 53 set. Advantageously, the lower sealing profile 17 the fastening device 1 formed such that in the fastening device 1 water over the sealing profile 17 can be dissipated. For this purpose, it is conceivable that the lower sealing profile 17 is formed channel-shaped and, via a arranged in the housing profile drainage, can discharge water from the fastening device.

With regard 7 is a particular embodiment of the lower part of the housing profile 11 a fastening device according to the invention 1 shown. In detail, the lower part 11 of the housing profile according to 7 executed in several parts along its longitudinal direction. Accordingly, it is conceivable, the lower part of the housing profile 11 to manufacture from zusammensteckbaren items. Unlike in the 2 and 3 shown lower housing parts 11 has the in 7 illustrated lower housing part 11 at least two openings 90 on which for receiving pin elements 91 serve. Through the openings 90 and the pin elements 91 Can the items of the in 7 shown lower part of the housing profile 11 be connected to each other to an arbitrarily long base for a fastener according to the invention 1 to shape. This is particularly advantageous in the production and assembly of the fastening elements according to the invention.

Like from the 2 and 3 is clearly apparent, the fastening device according to the invention is constructed axially symmetrical, that is, it is through the fastening device according to the invention 1 possible, membrane constructions on both sides of the fastening device 1 to install. Since according to the invention each of the piping rails 13 . 14 Therefore, it is conceivable to mount up to four flexible membranes on each side of the fixture. In other words, it is through the fastening device according to the invention 1 possible, even membrane constructions consisting of several membrane pads on a single fastening device 1 to install.

LIST OF REFERENCE NUMBERS

1

fastening device

11

lower part of the housing profile

11 '

cover element

12

application profile

13

first piping rail

14

second piping rail

15

web profile

16

another flexible membrane

17

lower sealing profile

18

upper sealing profile

20

fuse element

21

fastener

22

screw connection

24

first thermal insulation element

26

second thermal insulation element

30

lower groove-like channel

32

lateral groove-like channel

34

Wire, rope or belt supports

41

first outer flexible membrane

42

second outer flexible membrane

42 '

third outer flexible membrane

42 ''

fourth outer flexible membrane

43

first connection area

43 '

second connection area

44

first piping

51

first inner flexible membrane

52

second inner flexible membrane

52 '

third inner flexible membrane

52 ''

fourth inner flexible membrane

53

first connection area

53 '

second connection area

54

second piping

61

media inlet

62

media outlet

63

media outlet

71

upper volume

72

medium volume

73

lower volume

90

opening

91

pin element

421

overflow

511

overflow

Claims (15)

Fastening device ( 1 ) for fastening membrane constructions with at least one outer flexible membrane ( 41 . 42 . 42 ' . 42 '' ) and at least one inner flexible membrane ( 51 . 52 . 52 ' . 52 '' ), wherein the fastening device ( 1 ) comprises: - at least one first piping rail ( 13 ) for attaching the at least one outer flexible membrane ( 41 . 42 . 42 ' . 42 '' ); At least one second piping rail ( 14 ) for securing the at least one inner flexible membrane ( 51 . 52 . 52 ' . 52 '' ); - a housing profile ( 11 . 11 ' ), which is designed, the at least one first piping rail ( 13 ) as well as the at least one second piping rail ( 14 ); - a bar profile ( 15 ), which with the flexible layers ( 41 . 42 . 42 ' . 42 '' . 51 . 52 . 52 ' . 52 '' ) of the membrane construction is in contact and on the housing profile ( 11 . 11 ' ) is attached so that the at least one outer flexible membrane ( 41 . 42 . 42 ' . 42 '' ) of the at least one inner flexible membrane ( 51 . 52 . 52 ' . 52 '' ) is spaced. Fastening device ( 1 ) according to claim 1, wherein the fastening device ( 1 ) at least a first thermal insulation element ( 24 ) which, in order to interrupt thermal bridges, can be detachably connected between the at least one outer flexible membrane ( 41 . 42 . 42 ' . 42 '' ) and the at least one inner flexible membrane ( 51 . 52 . 52 ' . 52 '' ) is arranged. Fastening device ( 1 ) according to claim 2, wherein at least the second piping rail ( 14 ) a recess for receiving the at least one first heat-insulating element ( 24 ) having. Fastening device ( 1 ) according to one of the preceding claims, wherein the web profile ( 15 ) with another flexible membrane ( 16 ) is in contact, which between the at least one outer flexible membrane ( 41 . 42 . 42 ' . 42 '' ) and the at least one inner flexible membrane ( 51 . 52 . 52 ' . 52 '' ) of the membrane construction extending so that an airtight barrier between the fastening device ( 1 ) and a volume which extends between the at least one outer flexible membrane ( 41 . 42 . 42 ' . 42 '' ) and the at least one inner flexible membrane ( 51 . 52 . 52 ' . 52 '' ) is created. Fastening device ( 1 ) according to claim 4, wherein the further flexible membrane consists of ETFE film. Fastening device ( 1 ) according to one of the preceding claims, wherein the fastening device ( 1 ), a deployment profile ( 12 ), which releasably with the housing profile ( 11 . 11 ' ) and is adapted to the Kederschienen ( 13 . 14 ) on the fastening device ( 1 ). Fastening device ( 1 ) according to claim 6, wherein the deployment profile ( 12 ) by a screw connection ( 22 ) with blind hole threaded detachable with the housing profile ( 11 . 11 ' ) connected is. Fastening device ( 1 ) according to one of claims 6 or 7, wherein the housing profile ( 11 . 11 ' ) a lower part ( 11 ) as well as cover element ( 11 ' ), wherein the cover element ( 11 ' ) detachable with the insert profile ( 12 ) connected is. Fastening device ( 1 ) according to claim 8, wherein the fastening device ( 1 ) at least one second thermal insulation element ( 26 ), which between the cover element ( 11 ' ) and the at least one outer flexible membrane ( 41 . 42 . 42 ' . 42 '' ) is arranged. Fastening device ( 1 ) according to claim 9, wherein the at least one second thermal insulation element ( 26 ) are formed such that the at least one first piping rail ( 13 ) through the second thermal insulation element ( 26 ) is held. Fastening device ( 1 ) according to one of claims 6 to 10, wherein the fastening device ( 1 ) Security elements ( 20 ), to prevent the jumping out of the at least one first Kederschiene ( 13 ) from the mission profile ( 12 ), having. Fastening device ( 1 ) according to one of the preceding claims, wherein the housing profile ( 11 . 11 ' ) groove-like channels ( 30 . 32 ) on the underside and / or on lateral flanks for fastening the fastening device ( 1 ) on a support structure. Fastening device ( 1 ) according to one of the preceding claims, wherein the fastening device ( 1 ) at least one sealing profile ( 17 ), which is designed such that in the fastening device ( 1 ) water over the sealing profile ( 17 ) can be dissipated. Fastening device ( 1 ) according to one of the preceding claims, wherein the first piping rail ( 13 ) has a diameter which is greater or smaller than the diameter of the second Kederschiene ( 14 ). Fastening device ( 1 ) according to one of the preceding claims, wherein the housing profile ( 11 . 11 ' ) is constructed of several individual parts, which via pin elements ( 91 ) are connectable to each other.

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