EP3137702B1 - Mechanism and method for tensioning a sheet of covering for a portion of building envelope - Google Patents

Mechanism and method for tensioning a sheet of covering for a portion of building envelope Download PDF

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Publication number
EP3137702B1
EP3137702B1 EP15718502.6A EP15718502A EP3137702B1 EP 3137702 B1 EP3137702 B1 EP 3137702B1 EP 15718502 A EP15718502 A EP 15718502A EP 3137702 B1 EP3137702 B1 EP 3137702B1
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European Patent Office
Prior art keywords
membrane
profile
tensioning
fastening
elastic
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EP15718502.6A
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German (de)
French (fr)
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EP3137702A1 (en
Inventor
Laurent De Giorgi
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Elikraft Invest SA
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Elikraft Invest SA
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/002—Coverings or linings, e.g. for walls or ceilings made of webs, e.g. of fabrics, or wallpaper, used as coverings or linings
    • E04F13/005—Stretched foil- or web-like elements attached with edge gripping devices

Definitions

  • the present invention relates to a portion of a building envelope, such as a facade or roof portion, for a permanent structure comprising a mechanism for tensioning and adjusting the tension of the textile covering membrane.
  • the document DE20217618U describes a device for tensioning a frame supporting a flexible or textile membrane.
  • the device comprises a rectangular frame provided with four profiles to hold and tension the four sides of the membrane.
  • Angular connection elements allow the profiles to be moved relative to one another in order to adjust the tension of the membrane.
  • the document US2003 / 0150147 describes a device for tensioning a frame supporting a plurality of laminated membranes.
  • the device comprises a parallelepipedic frame, the edges of which are formed by movable fastening elements. The displacement of each of these fastening elements is carried out by a screw-nut device.
  • the document WO2006 / 063991 describes a frame supporting a textile membrane and comprising a device for the elastic tensioning of the membrane.
  • the rectangular frame has four profiles to tension the four edges of the membrane. Each profile is movable relative to the others by means of a plurality of angular connection elements.
  • Each end of the membrane is equipped with an elastic end part, while the frame comprises a device applying a joint displacement to the four angular connection elements.
  • JPS61233180A also discloses a portion of a building envelope, comprising: a roofing membrane; a membrane support frame comprising at least a first profile for holding at least one first end of said membrane a second profile for holding at least a second end of said membrane; a single said fastening element being linked to two elastic tensioning mechanisms, so as to exert a displacement force of the first profile in a first direction, and a displacement force of the second profile in a second direction substantially orthogonal to the first direction; a fixing element intended to fix the support frame to said permanent structure; a plurality of elastic tensioning mechanisms, each arranged to exert a force between a said profile and said fastening element to which it is linked so as to tension said membrane, and each comprising a spring configured to adjust the tension of the membrane between a minimum value guaranteeing the functionality and / or tightness of the membrane and a maximum value in response to aging of the membrane or to climatic or thermal change; wherein the same profile of said at least one first profile is tensioned by several of said
  • the document DE102012200960 describes a device for tensioning and maintaining the tension of a membrane comprising an elastic element. This device retains one end of the membrane while operating as a lever on one side of a profile of the membrane frame.
  • the document DE202009012638 reveals a membrane support frame containing a device for tensioning and maintaining the tension of the membrane. This device operates in support under the membrane by applying a force between the membrane and the frame.
  • An object of the invention is therefore to have a portion of a building envelope comprising a mechanism for making the membrane easier to tension.
  • Another object is to provide a portion of a building envelope with a surface area of between 1 square meter and a few tens of square meters, or even a few hundred square meters, and which is easier to assemble and to adjust in tension.
  • Another object of the invention is to have a portion of a building envelope comprising a mechanism for tensioning the textile covering membrane suitable for on-site assembly with reduced costs and installation time.
  • the mounting and tensioning operations must minimize the stretching and / or deformation of a part and / or of one end of the membrane in order to respect the integrity, tightness and aesthetics of the membrane. and the envelope portion. These operations must also be adapted to portions of the building envelope having rigid support frames meeting the requirements and standards for permanent structures.
  • Another object of the invention is to have a portion of a building envelope comprising a mechanism for adjusting the tension of the textile cover membrane capable of reducing intervention and maintenance costs.
  • Another object of the invention is to have a portion of a building envelope comprising a mechanism for adjusting the tension of the textile cover membrane allowing adjustment of the tension when all of the ends of the membrane are retained by the framework.
  • the portion of the building envelope has the particular advantage of allowing the frame to be fixed to a structure by separate pieces.
  • the smaller size and weight of these parts as well as a fixing operation carried out in several successive operations allows a reduction in the installation complexity as well as the number of specialized workers involved in the installation.
  • the advantages in terms of time and costs are particularly remarkable when the installation is carried out at several meters in height.
  • the same section is tensioned by several so-called setting mechanisms. elastic tension, each of these tensioning mechanisms being linked to a separate fixing element.
  • This embodiment allows a distribution of all the forces applied to the same profile, which makes it possible to reduce the deformation and elasticity stresses under load of the profile, in particular in the case of a profile of large dimensions.
  • the support frame comprises a second profile for holding at least one second end of said textile cover membrane; a single said fastening element being linked to two elastic tensioning mechanisms, so as to exert a displacement force of the first profile in a first direction, and a displacement force of the second profile in a second direction substantially orthogonal to the first direction.
  • the displacement force of the second profile is in a second direction orthogonal to the first direction.
  • the frame supports and surrounds substantially the entire perimeter of the membrane.
  • the frame has a substantially polygonal shape, in particular rectangular or square.
  • the elastic tensioning mechanism has the particular advantage of maintaining a minimum tension on the membrane, which guarantees the sealing and the lifetime of the membrane.
  • the tensioning mechanism comprises a stop to limit the amplitude of the displacement of the profile relative to the fastening element.
  • the value of the force applied to the membrane can thus be limited between a minimum value and a maximum value.
  • This solution has in particular the advantage compared to the prior art of limiting the tension applied to the membrane between a minimum value guaranteeing the functionality and / or the tightness of the membrane and a maximum value making it possible to cope with variations in the tension due to climatic and thermal changes while avoiding a tear and / or damage to the membrane of the textile cover.
  • the elastic tensioning mechanism comprises a spring.
  • the device can comprise one (or more) elastic element of another type, such as a stack of Belleville washers or an elastomer.
  • the tensioning mechanism can be disarmed so as to release the application of force on the profile.
  • the tensioning mechanism can thus pass in a single operation between a primed position, in which the membrane is stretched, and a defused position in which the membrane is relaxed.
  • the spring is defusable so as to release the application of force on the profile.
  • This solution has in particular the advantage compared to the prior art of making it possible to defuse the tensioning mechanism so as to relax the application of force on the profile, in particular during the fixing of the frame to the building.
  • This solution thus allows the fixing and the tensioning of one end of the membrane to the frame in an easy manner and even after the frame, or a substantial part of the latter, has been fixed to the building.
  • the screw-nut mechanism is positioned between the support element of the profile and the base so as to allow its access at all times, in particular during operations for handling the envelope portion, to a user.
  • the support element of the profile comprises a first end comprising a rod and a second end comprising a base for holding the profile, for example by screwing.
  • the guide device comprises a cylinder integral with the base.
  • the spring around the rod exerts a force between one end of the cylinder and the base.
  • the building envelope portion comprises at least one corner piece intended to operate between two sections of the frame oriented substantially perpendicular or oblique to one another.
  • the invention also relates to a method for tensioning a membrane for covering a portion of a building envelope according to claim 10.
  • the tensioning can be done in a single priming operation, without adjustment; the tensile force is determined by the elastic tensioning mechanism.
  • This solution makes it possible in particular to transport and dispatch the portion of the envelope in spare parts to the building, and to assemble it only on site, or even on the facade.
  • This solution allows in particular the advantage compared to the prior art to facilitate the operations of fixing the envelope portion to the building, since the support frame, or at least a substantial part of the latter, can be fixed in building spare parts before being fitted with the membrane.
  • the fixing operations thus overcome the difficulties linked to the weight, the size, the shape and / or the type of membrane equipping the envelope portion.
  • This advantage is especially appreciable when fixing a portion of a large envelope several meters high or at places in the building that are difficult to reach at the same time by a group of workers. The risks of damaging the membrane during the fixing of the envelope portion are thus greatly reduced.
  • This solution notably offers the advantage of allowing the frame to be tensioned by means of one or more elastic tensioning elements without requiring additional operations to adjust the tensioning and / or the adjustment of the membrane tension.
  • tensioning and / or adjusting the tension of the membrane does not require the use of a torque wrench.
  • the present invention relates to a portion of a building envelope, such as a facade or roof portion, for a permanent structure comprising a mechanism for tensioning and adjusting the tension of the textile covering membrane.
  • the invention provides a portion of a building envelope that meets the requirements and standards for permanent structures.
  • the invention allows a tensioning of a textile covering membrane having a surface which varies between a square meter up to several tens of square meters, or even a few hundred square meters, while guaranteeing the integrity and sealing of the membrane.
  • the figure 1 illustrates a portion of building envelope 1, more precisely a portion of the facade of a permanent structure, according to the invention.
  • the envelope portion comprises a textile covering membrane 2, the ends of which are retained by a support frame 3 which is fixed to a building by a plurality of fixing elements 4.
  • the fixing elements can for example be screwed onto the vertical facade or the frame of a building.
  • the support frame 3 comprises, as illustrated by the figures 2 and 3 , a plurality of profiles, or bars, 5 provided with anchors 8 for retaining the ends 7 of the membrane 2.
  • the anchors can for example consist of annular grooves in which rods connected to the edges of the membrane can be slid.
  • Each fixing element 4 is linked to one or more elastic tensioning mechanisms 9 arranged to exert a force on the profiles 5, so as to tension the membrane.
  • the elastic tensioning mechanisms 9 comprise for example a spring 10 which pushes the profile relative to the fixing element.
  • Each elastic tensioning mechanism is arranged to exert a force between the profile and the element for fixing to the building to which it is linked.
  • the tensioning mechanisms 9 also include guide devices for guiding the movement of one or more sections 5 relative to each fixing element 4.
  • Each anchoring 8 of the profile 5 makes it possible to retain one end of the membrane 2 while allowing a lateral displacement of the latter in order to allow an effective application of a plurality of tensions to the membrane, this in various directions oblique or perpendicular to each other other.
  • each profile 5 of the frame 3 can be subjected to one, two or more forces exerted by at least one tensioning mechanism 9.
  • a plurality of tensioning mechanisms 9 can be integral with the same fixing element 4 so as to guide the movements of a plurality of profiles 5.
  • the fastening elements 4 equipping the four corners of the rectangular envelope portion may be provided with two tensioning mechanisms 9 arranged to direct and to apply a force to the profiles 5 positioned in a manner substantially orthogonal to one another .
  • the figure 4 illustrates an elastic tensioning mechanism 9 arranged to exert a force on a profile 5 of the frame so as to tension the membrane.
  • the element 17 is a base for fixing to the fixing element 4.
  • the element 14 is a support for fixing to the profile 5 of the frame.
  • the spring (not visible in this figure) exerts a force to push back the support 14 relative to the base 17.
  • the figure 5 illustrates an arrangement of two mechanisms 9 for elastic tensioning, which can be fitted to the fastening elements at the corners of rectangular envelope portions. This arrangement is arranged to exert a first force on a first profile of the frame and a second force on a second profile positioned orthogonally to the first profile.
  • the two elastic tensioning mechanisms 9 can share, entirely or partially, the same base 17 and can therefore be fixed in a single operation to a common fixing element 4.
  • the figures 6-8 illustrate details of an embodiment of the mechanism 9 for elastic tensioning.
  • the base 17 allows the mechanism 9 to be fixed to a fixing element 4 of the frame 3.
  • the base can thus be provided with a plurality of oblong openings suitable for fixing and fine adjustment of the positioning by screwing.
  • the mechanism 9 then comprises a platform 16 integral with the base 17 and a support element 14 arranged for the maintenance of a profile 5.
  • the support element 14 comprises a base with walls facilitating the maintenance and fixing by screwing the profile 5, while the other end is formed by a rod.
  • This rod is retained by a cylinder 13 integral with the platform 16 whose function is to guide the movements of this support element 14 relative to the platform 16.
  • This annular linear type connection also allows rotation of the element 14 relative to the platform 16 which facilitates the operation of fixing the profile 5 to the base. In a variant, it is possible to reverse the position of the rod and of the cylinder.
  • a spring is mounted around the rod of this support element 14 and exerts a force between the cylinder 13 and the base of the support element 14 in order to push the profile relative to the base.
  • the mechanism 9 includes two stops 11, 12, in order to limit the minimum and / or maximum displacement of the support element 14 relative to the platform 16.
  • a pin 12 limits the maximum displacement by limiting the displacement of the rod towards the outside of the cylinder 13.
  • a disc 11 equipping the element 14 makes it possible to limit the minimum displacement by preventing subsequent sliding of the rod inside the cylinder 13.
  • the mechanism 9 further comprises a screw-nut mechanism 15 capable of linearly displacing the platform 16 relative to the base 17.
  • a screw-nut mechanism 15 capable of linearly displacing the platform 16 relative to the base 17.
  • One end of the screw is retained by a plate 18 secured to the base 17 while the other threaded end acts on a nut integrated into an axis integral with the platform 16.
  • a rectilinear translation 21 of the platform 16 is ensured by an extension 19 of the base 17 enveloping the lateral ends of the platform 16 so as to produce a slide connection.
  • the displacements 21 of the platform 16 are directed in a manner substantially coaxial with the displacements 20 of the element 14.
  • a translation of the platform 16 substantially coaxial with the displacements 20 of the element 14 makes it possible to finely adjust the minimum and maximum displacement of the profile 5 relative to the fastening element 4.
  • the platforms When attaching the membrane to the frame, the platforms can thus be moved so as to defuse the tensioning and limit the maximum displacement of the bars 5 below a threshold allowing easy attachment of the ends of the membrane .
  • the platforms can be moved so as to initiate the tensioning and to exert one or more tensioning forces on the membrane through the profiles 5.
  • the tensioning operation guarantees the application of one or more forces having a preset value of maximum tension, without the use of a torque wrench.
  • the screw-nut mechanism is positioned between the support element 14 of the profile and the base 17 of the device. This positioning allows access, at any time, to the screw-nut mechanism in order to adjust the movement of the platform 16 relative to the base 17.
  • this access allows tensioning as well as adjustment of the membrane tension without requesting the complete or partial disassembly of the membrane or parts of the frame.
  • the stops thus make it possible to frame the tension applied to the membrane between a maximum value ( Figure 9a ) and a minimum value ( Figure 9b ).
  • the minimum value guarantees the functionality and / or waterproofness of the roof.
  • the maximum value makes it possible to cope with significant variations in tension, due for example to the climatic and thermal changes that the membrane undergoes, while guaranteeing the integrity of the membrane of the textile cover.
  • the maximum value must in fact avoid the application of too high a voltage which could cause damage and / or damage to the membrane.
  • the membrane 2 of the envelope portion 1 of a building 6 can be tensioned, advantageously, by the following steps.
  • the Figures 10a and b illustrate a mode of application of the method applied to a rectangular frame.
  • the first step includes fixing a plurality of elements for fixing the frame to the building.
  • the fastening elements are fixed, one after the other or in parallel, to the building.
  • the second step concerns the fixing of one end (7) of the membrane to a profile (5) of the frame and the fixing of the frame (3) to the plurality of fixing elements (4).
  • a first tensioning mechanism 9 is mounted on a first fixing element and a second tensioning mechanism 9 is mounted on a second fixing element.
  • This step may include defusing each or part of the tensioning mechanisms.
  • One or more sections 5 are then fixed to the tensioning elements 9.
  • the profiles 5 are thus positioned at a close distance from each other, as illustrated in the figure 10a .
  • This step includes fixing one or more ends of the membrane to the profiles 5 thus fixed.
  • the frame 3 is then tensioned by applying a force to each of the profiles 5 of the frame 3 by means of elements 9 for elastic tensioning.
  • the sections 5 will thus move away from each other until the desired tensioning of the membrane is obtained.
  • the figure 10b shows the effects of applying a plurality of forces on the frame profiles in the absence of the membrane.
  • This solution has the particular advantage of allowing the membrane to be fixed and tensioned after fixing its support frame, or a substantial part of the latter, to the permanent structure, which subsequently facilitates operations. transport, assembly and fixing of the envelope portion to the building.
  • This solution allows in particular the advantage of being able to transport and / or send the portion of the envelope in loose parts to the front of the building concerned.
  • This solution allows in particular the advantage of facilitating the operations of fixing the envelope portion to the building, since the support frame, or at least a substantial part of the latter, can be fixed to the building devoid of the membrane.
  • the membrane frame can thus be fixed without being hindered by the weight, size, shape and / or type of membrane.
  • This advantage is especially appreciable when fixing a portion of a large envelope several meters high or at places in the building that are difficult to reach at the same time by a group of workers.
  • This solution notably offers the advantage of tensioning and / or adjusting the tension guaranteeing the integrity and / or tightness of the membrane without the use of a torque wrench.
  • This solution offers in particular the advantage compared to the prior art of tensioning and / or adjusting the tension at all times, without requiring the complete or partial disassembly of the membrane or parts of the frame.
  • This method reduces installation and handling time and costs.
  • the installation time as well as the costs of such a roof strongly depend on the time necessary for the execution of this manual manipulation of tensioning as well as on the number of workers necessary for the operation, while the maintenance operations Regular and extraordinary also involve the deployment of several specialized workers as well as securing the site during maintenance operations.
  • the membrane thus installed and tensioned remains taut thanks to the tensioning elements 9 which apply a constant force to the membrane when they are primed after their installation.
  • This method makes it possible to avoid the difficulties associated with manual regulation of the membrane tension by specialized workers acting separately on the positioning of each profile.
  • the method is suitable for tensioning portions of building envelopes with rigid support frames meeting the requirements and standards for permanent structures.
  • the figures 11-13 illustrate variants of envelope portions 1 of this type having various surfaces as well as curved profiles ( Figures 13A and 13B ).
  • the rectangular support frame 3 of the Figures 11A and 11B comprises four fixing elements 4 each supporting two mechanisms 9 for elastic tensioning, acting in a manner substantially orthogonal to one another.
  • Each profile 5 of the frame is thus actuated by two mechanisms 9, each being linked to a fixing element 4 different from the other.
  • This configuration is particularly suitable for reduced-size frames as well as for frames of substantially square shape.
  • Frame 3 of Figures 12A and 12B further comprises two intermediate fastening elements 4, each comprising a mechanism 9 for elastic tensioning.
  • Each horizontal profile is thus tensioned by three mechanisms 9, while each vertical profile is tensioned by two mechanisms 9.
  • Each tensioning mechanism 9 acting on the same profile is linked to a fixing element different from the others. This configuration is particularly suitable for large and rectangular frames.
  • Frames having other polygonal shapes may include a plurality of fastening elements 4 each comprising a mechanism 9 for elastic tensioning; and or a plurality of fastening elements 4 each comprising two mechanisms 9 for elastic tensioning acting in oblique or perpendicular directions relative to one another.
  • Frames having other more complex polygonal shapes may include a plurality of fasteners 4 each comprising three or more elastic tensioning mechanisms 9 acting in one or more directions.
  • Frames with rounded shapes can include curved, concave, convex, semi-circular profiles, etc.
  • the third variant of the envelope portion 1, illustrated by the Figures 13A and 13B includes fastening elements 4 having variable lengths, see adjustable.
  • This envelope portion 1 has two distinct surfaces, the planes of which are not coplanar with one another, by means of vertical curved or foldable sections 5.
  • Frames having a plurality of distinct surfaces may include a plurality of fasteners 4 each comprising a plurality of elastic tensioning mechanisms 9 each acting coplanar to one of these surfaces.
  • Building envelope portions must meet specific aesthetic requirements for the duration of their presence on a facade of a structure.
  • the tensioning as well as the maintenance of the tension of a membrane causes relative displacements between pairs of sections oriented obliquely or substantially perpendicular to each other. These movements can cause cosmetic imperfections in corner areas of the membrane.
  • the building envelope portion can thus include corner pieces 50 intended to operate between sections 5 of the frame, in particular between pairs of sections oriented in a manner substantially perpendicular or oblique to one another.
  • the corner piece 50 can be arranged to retain or support or guide one end or part of the membrane.
  • the corner piece can thus be provided with means for retaining or supporting or guiding a part of the membrane.
  • the figure 14 illustrates a first embodiment of a corner piece making it possible to face possible aesthetic imperfections of a corner area of the membrane.
  • the figure 14 shows the corner piece 50 acting between a pair of profiles 5 in the absence of the membrane.
  • This part is connected at each end of the two profiles 5 in a movable manner so as to maintain substantially unaltered the external shape of the envelope portion, this independently of the relative displacement between the profiles due to the action of the tensioning mechanisms 9 elastic.
  • part of the corner piece can be arranged to slide inside one end of the profiles 5.
  • part of the corner piece can be arranged to be slidably retained by a slide equipping one or both ends of the profiles 5.
  • the slide can be positioned on a wall or in a cavity d one or both ends.
  • the slide can be arranged, once the frame fixed to the structure, to be turned towards the surface of the structure or to be invisible, for example by being covered by a part of the membrane.
  • the slide can be positioned on the external profile of profile 5.
  • the figure 15 illustrates a second embodiment of a corner piece making it possible to face possible aesthetic imperfections of a corner area of the membrane.
  • the corner piece of this variant is, partially or entirely deformable, elastically.
  • the coefficient of elasticity of this part must be chosen so as not to significantly influence the action of the mechanisms 9 for elastic tensioning.
  • This corner piece is arranged to be fixed to the ends of the two profiles 5. For reasons of clarity, the figure 15 shows this corner piece 50 acting between a pair of profiles 5 in the absence of the membrane.

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Description

Domaine techniqueTechnical area

La présente invention concerne une portion d'enveloppe de bâtiment, tel que portion de façade ou de toiture, pour ouvrage permanent comprenant un mécanisme de mise en tension et d'ajustement de la tension de la membrane de couverture textile.The present invention relates to a portion of a building envelope, such as a facade or roof portion, for a permanent structure comprising a mechanism for tensioning and adjusting the tension of the textile covering membrane.

Etat de la techniqueState of the art

Le document DE20217618U décrit un dispositif pour la mise en tension d'un cadre supportant une membrane flexible ou textile. Le dispositif comporte un cadre rectangulaire muni de quatre profilés pour tenir et tendre les quatre côtés de la membrane. Des éléments de connexion angulaires permettent de déplacer les profilés les uns par rapport aux autres afin de régler la tension de la membrane.The document DE20217618U describes a device for tensioning a frame supporting a flexible or textile membrane. The device comprises a rectangular frame provided with four profiles to hold and tension the four sides of the membrane. Angular connection elements allow the profiles to be moved relative to one another in order to adjust the tension of the membrane.

Le document US2003/0150147 décrit un dispositif pour la mise en tension d'un cadre supportant une pluralité de membranes feuillées. Le dispositif comporte un cadre parallélépipédique dont des arêtes sont formées par des éléments de fixation déplaçables. Le déplacement de chacun de ces éléments de fixation est effectué par un dispositif vis-écrou.The document US2003 / 0150147 describes a device for tensioning a frame supporting a plurality of laminated membranes. The device comprises a parallelepipedic frame, the edges of which are formed by movable fastening elements. The displacement of each of these fastening elements is carried out by a screw-nut device.

Le document WO2006/063991 décrit un cadre supportant une membrane textile et comprenant un dispositif pour la mise en tension élastique de la membrane. Le cadre rectangulaire comporte quatre profilés pour tendre les quatre bords de la membrane. Chaque profilé est déplaçable par rapport aux autres au moyen d'une pluralité d'éléments de connexion angulaire. Chaque extrémité de la membrane est équipée d'une partie terminale élastique, alors que le cadre comprend un dispositif appliquant un déplacement conjoint aux quatre éléments de connexion angulaires.The document WO2006 / 063991 describes a frame supporting a textile membrane and comprising a device for the elastic tensioning of the membrane. The rectangular frame has four profiles to tension the four edges of the membrane. Each profile is movable relative to the others by means of a plurality of angular connection elements. Each end of the membrane is equipped with an elastic end part, while the frame comprises a device applying a joint displacement to the four angular connection elements.

JPS61233180A divulgue aussi une portion d'enveloppe de bâtiment, comprenant : une membrane de couverture; un cadre de support de la membrane comprenant au moins un premier profilé pour maintenir au moins une première extrémité de ladite membrane un deuxième profilé pour maintenir au moins une deuxième extrémité de ladite membrane; un seul dit élément de fixation étant lié à deux mécanismes de mise en tension élastique, de manière à exercer une force de déplacement du premier profilé dans une première direction, et une force de déplacement du deuxième profilé dans une deuxième direction sensiblement orthogonale à la première direction; un élément de fixation destiné à fixer le cadre de support audit ouvrage permanent ; une pluralité de mécanismes de mise en tension élastique, chacun arrangé pour exercer une force entre un dit profilé et ledit élément de fixation auquel il est lié de manière à mettre en tension ladite membrane, et chacun comprenant un ressort configuré pour ajuster la tension de la membrane entre une valeur minimale garantissant la fonctionnalité et/ou l'étanchéité de la membrane et une valeur maximale en réponse au vieillissement de la membrane ou à un changement climatique ou thermique; dans laquelle un même profilé dudit au moins un premier profilé est mis en tension par plusieurs de ladite pluralité de mécanismes de mise en tension élastique. JPS61233180A also discloses a portion of a building envelope, comprising: a roofing membrane; a membrane support frame comprising at least a first profile for holding at least one first end of said membrane a second profile for holding at least a second end of said membrane; a single said fastening element being linked to two elastic tensioning mechanisms, so as to exert a displacement force of the first profile in a first direction, and a displacement force of the second profile in a second direction substantially orthogonal to the first direction; a fixing element intended to fix the support frame to said permanent structure; a plurality of elastic tensioning mechanisms, each arranged to exert a force between a said profile and said fastening element to which it is linked so as to tension said membrane, and each comprising a spring configured to adjust the tension of the membrane between a minimum value guaranteeing the functionality and / or tightness of the membrane and a maximum value in response to aging of the membrane or to climatic or thermal change; wherein the same profile of said at least one first profile is tensioned by several of said plurality of elastic tensioning mechanisms.

Ces dispositifs nécessitent une mise en tension de la membrane en atelier ou au plus tard au pied du bâtiment. Le transport sur camions puis le levage avec une grue de ces portions d'enveloppe montées est cependant compliqué et coûteux. Il arrive par ailleurs que le cadre se déforme légèrement lors de son montage et de sa fixation au bâtiment ; ces déformations provoquent un déréglage de la tension de la membrane qu'il est très difficile d'ajuster après montage. D'autre part, ces dispositifs ne permettent pas un ajustement simple de la tension de la toile après montage, par exemple si la membrane se détend suite au vieillissement ou aux conditions météorologiques.These devices require the membrane to be tensioned in the workshop or at the foot of the building at the latest. Transporting trucks and lifting them with a crane of these mounted casing portions is however complicated and costly. It also happens that the frame deforms slightly when it is assembled and fixed to the building; these deformations cause an adjustment in the tension of the membrane which is very difficult to adjust after mounting. On the other hand, these devices do not allow a simple adjustment of the tension of the fabric after assembly, for example if the membrane relaxes due to aging or weather conditions.

Le document DE102012200960 décrit un dispositif de mise en tension et de maintien de la tension d'une membrane comprenant un élément élastique. Ce dispositif retient une extrémité de la membrane tout en opérant comme levier sur un côté d'un profilé du cadre de la membrane.The document DE102012200960 describes a device for tensioning and maintaining the tension of a membrane comprising an elastic element. This device retains one end of the membrane while operating as a lever on one side of a profile of the membrane frame.

Le document DE202009012638 dévoile un cadre de support d'une membrane contenant un dispositif de mise en tension et de maintien de la tension de la membrane. Ce dispositif opère en appui sous la membrane en appliquant une force entre la membrane et le cadre.The document DE202009012638 reveals a membrane support frame containing a device for tensioning and maintaining the tension of the membrane. This device operates in support under the membrane by applying a force between the membrane and the frame.

Ces dispositifs de mise en tension et de maintien de la tension d'une membrane nécessitent la fixation de l'ensemble du cadre à un bâtiment en une seule opération. Si cette opération se relève facile pour des cadres de poids et d'encombrement réduits, l'installation d'un cadre de dimension et de poids plus importants, comme c'est normalement le cas lorsqu'il s'agit d'un cadre d'une portion d'enveloppe de bâtiment, nécessite le déploiement de plusieurs ouvriers spécialisés, souvent à plusieurs mètres de hauteur.These devices for tensioning and maintaining the tension of a membrane require the entire frame to be fixed to a building in a single operation. If this operation is easy for frames of reduced weight and size, the installation of a frame larger dimension and weight, as is normally the case when it is a part of a building envelope portion, requires the deployment of several specialized workers, often several meters high.

Ces dispositifs de mise en tension et de maintien de la tension d'une membrane nécessitent en outre un préréglage du dispositif avant la fixation de la membrane au cadre. Un réglage du dispositif qui ne réponde pas aux exigences de mise en tension ou de maintien de la tension implique le démontage de la membrane afin de permettre l'accès au dispositif dans le but d'un nouveau réglage.These devices for tensioning and maintaining the tension of a membrane also require the device to be preset before the membrane is fixed to the frame. An adjustment of the device which does not meet the requirements for tensioning or maintaining tension implies disassembly of the membrane to allow access to the device for the purpose of a new adjustment.

Le temps d'installation ainsi que les coûts d'une telle toiture dépendent fortement du temps nécessaire à l'exécution de ces opérations de montage du cadre et de mise en tension de la membrane ainsi qu'aux mesures de sécurité nécessaires à la mise en sécurité de l'ensemble des ouvriers spécialisés effectuant ces opérations.The installation time as well as the costs of such a roof strongly depend on the time necessary for the execution of these operations of assembly of the frame and tensioning of the membrane as well as on the safety measures necessary for the implementation safety of all the specialized workers carrying out these operations.

Bref résumé de l'inventionBrief summary of the invention

Un but de l'invention est donc de disposer d'une portion d'enveloppe de bâtiment comprenant un mécanisme de mise en tension facilité de la membrane.An object of the invention is therefore to have a portion of a building envelope comprising a mechanism for making the membrane easier to tension.

Un autre but est de proposer une portion d'enveloppe de bâtiment d'une surface comprise entre 1 mètre carré et quelques dizaines de mètres carrés, voire quelques centaines de mètres carrés, et qui soit plus simple à monter et à régler en tension.Another object is to provide a portion of a building envelope with a surface area of between 1 square meter and a few tens of square meters, or even a few hundred square meters, and which is easier to assemble and to adjust in tension.

Un autre but de l'invention est de disposer d'une portion d'enveloppe de bâtiment comprenant un mécanisme de mise en tension de la membrane de couverture textile apte à un montage sur place avec des coûts et temps d'installation réduits.Another object of the invention is to have a portion of a building envelope comprising a mechanism for tensioning the textile covering membrane suitable for on-site assembly with reduced costs and installation time.

Les opérations de montage et de mise en tension doivent minimiser l'étirement et/ou la déformation d'une partie et/ou d'une extrémité de la membrane afin de respecter l'intégrité, l'étanchéité et l'esthétique de la membrane et de la portion d'enveloppe. Ces opérations doivent être en plus adaptées à des portions d'enveloppe de bâtiment ayant des cadres de support rigides répondant aux exigences et aux normes concernant les ouvrages permanents.The mounting and tensioning operations must minimize the stretching and / or deformation of a part and / or of one end of the membrane in order to respect the integrity, tightness and aesthetics of the membrane. and the envelope portion. These operations must also be adapted to portions of the building envelope having rigid support frames meeting the requirements and standards for permanent structures.

Un autre but de l'invention est de disposer d'une portion d'enveloppe de bâtiment comprenant un mécanisme d'ajustement de la tension de la membrane de couverture textile apte à réduire les interventions et les coûts de maintenance.Another object of the invention is to have a portion of a building envelope comprising a mechanism for adjusting the tension of the textile cover membrane capable of reducing intervention and maintenance costs.

Un autre but de l'invention est de disposer d'une portion d'enveloppe de bâtiment comprenant un mécanisme d'ajustement de la tension de la membrane de couverture textile permettant un réglage de la tension lorsque l'ensemble des extrémités de la membrane est retenue par le cadre.Another object of the invention is to have a portion of a building envelope comprising a mechanism for adjusting the tension of the textile cover membrane allowing adjustment of the tension when all of the ends of the membrane are retained by the framework.

Selon l'invention, ces buts sont atteints notamment au moyen d'une portion d'enveloppe de bâtiment selon la revendication 1.According to the invention, these objects are achieved in particular by means of a portion of the building envelope according to claim 1.

La portion d'enveloppe de bâtiment présente notamment l'avantage de permettre une fixation du cadre à un ouvrage par pièces séparés. La taille et le poids inférieures de ces pièces ainsi qu'une opération de fixation exécutée en plusieurs opérations successive permet une réduction de la complexité d'installation ainsi que le nombre d'ouvriers spécialisés impliqué dans l'installation. Les avantages en termes de temps et couts sont notamment remarquables lorsque l'installation s'effectue à plusieurs mètres de hauteur.The portion of the building envelope has the particular advantage of allowing the frame to be fixed to a structure by separate pieces. The smaller size and weight of these parts as well as a fixing operation carried out in several successive operations allows a reduction in the installation complexity as well as the number of specialized workers involved in the installation. The advantages in terms of time and costs are particularly remarkable when the installation is carried out at several meters in height.

Selon l'invention, un même profilé est mis en tension par plusieurs dits mécanismes de mise en tension élastique, chacun de ces mécanismes de mise en tension étant lié à un élément de fixation distinct.According to the invention, the same section is tensioned by several so-called setting mechanisms. elastic tension, each of these tensioning mechanisms being linked to a separate fixing element.

Ce mode de réalisation permet une répartition de l'ensemble des forces appliquée au même profilé ce qui permet de réduire les contraintes de déformation et d'élasticité à charge du profilé, notamment en cas d'un profilé de grands dimensions.This embodiment allows a distribution of all the forces applied to the same profile, which makes it possible to reduce the deformation and elasticity stresses under load of the profile, in particular in the case of a profile of large dimensions.

Selon l'invention, le cadre de support comprend un deuxième profilé pour maintenir au moins une deuxième extrémité de ladite membrane de couverture textile ;
un seul dit élément de fixation étant lié à deux mécanismes de mise en tension élastique, de manière à exercer une force de déplacement du premier profilé dans une première direction, et une force de déplacement du deuxième profilé dans une deuxième direction sensiblement orthogonale à la première direction.According to the invention, the support frame comprises a second profile for holding at least one second end of said textile cover membrane;
a single said fastening element being linked to two elastic tensioning mechanisms, so as to exert a displacement force of the first profile in a first direction, and a displacement force of the second profile in a second direction substantially orthogonal to the first direction.

Selon l'invention, la force de déplacement du deuxième profilé est dans une deuxième direction orthogonale à la première direction.According to the invention, the displacement force of the second profile is in a second direction orthogonal to the first direction.

Ces modes de réalisation présentent notamment l'avantage de limiter le nombre d'éléments de fixation nécessaires à la fixation de l'ensemble du cadre, en réduisant le nombre d'éléments de fixation nécessaires dans les coins de la portion d'enveloppe.These embodiments have the particular advantage of limiting the number of fasteners necessary for fixing the entire frame, by reducing the number of fasteners required in the corners of the envelope portion.

Selon l'invention, le cadre supporte et entoure substantiellement tout le périmètre de la membrane.According to the invention, the frame supports and surrounds substantially the entire perimeter of the membrane.

Avantageusement, le cadre a une forme sensiblement polygonale, en particulier rectangulaire ou carrée.Advantageously, the frame has a substantially polygonal shape, in particular rectangular or square.

Le mécanisme de mise en tension élastique présente notamment l'avantage de maintenir une tension minimale sur la membrane, ce qui garantit l'étanchéité et la durée de vie de la membrane.The elastic tensioning mechanism has the particular advantage of maintaining a minimum tension on the membrane, which guarantees the sealing and the lifetime of the membrane.

Selon un mode de réalisation particulièrement avantageux, le mécanisme de mise en tension comprend une butée pour limiter l'amplitude du déplacement du profilé par rapport à l'élément de fixation. La valeur de la force appliquée à la membrane peut être ainsi limitée entre une valeur minimale et une valeur maximale.According to a particularly advantageous embodiment, the tensioning mechanism comprises a stop to limit the amplitude of the displacement of the profile relative to the fastening element. The value of the force applied to the membrane can thus be limited between a minimum value and a maximum value.

Cette solution présente notamment l'avantage par rapport à l'art antérieur de limiter la tension appliquée à la membrane entre une valeur minimale garantissant la fonctionnalité et/ou l'étanchéité de la membrane et une valeur maximale permettant de faire face aux variations de la tension dus aux changements climatiques et thermiques tout en évitant une déchirure et/ou un dégât de la membrane de la couverture textile.This solution has in particular the advantage compared to the prior art of limiting the tension applied to the membrane between a minimum value guaranteeing the functionality and / or the tightness of the membrane and a maximum value making it possible to cope with variations in the tension due to climatic and thermal changes while avoiding a tear and / or damage to the membrane of the textile cover.

Selon un mode de réalisation, le mécanisme de mise en tension élastique comprend un ressort. Dans d'autre mode de réalisation, le dispositif peut comprendre un (ou plusieurs) élément élastique d'autre type, tels qu'un empilage de rondelles Belleville ou un élastomère.According to one embodiment, the elastic tensioning mechanism comprises a spring. In another embodiment, the device can comprise one (or more) elastic element of another type, such as a stack of Belleville washers or an elastomer.

Selon un mode de réalisation, le mécanisme de mise en tension est désamorçable de manière à relâcher l'application de la force sur le profilé. Le mécanisme de mise en tension peut ainsi passer en une seule opération entre une position amorcée, dans laquelle la membrane est tendue, et une position désamorcée dans laquelle la membrane est détendue. Selon un mode de réalisation particulièrement avantageux, le ressort est désamorçable de manière à relâcher l'application de la force sur le profilé.According to one embodiment, the tensioning mechanism can be disarmed so as to release the application of force on the profile. The tensioning mechanism can thus pass in a single operation between a primed position, in which the membrane is stretched, and a defused position in which the membrane is relaxed. According to a particularly advantageous embodiment, the spring is defusable so as to release the application of force on the profile.

Cette solution présente notamment l'avantage par rapport à l'art antérieur de permettre de désamorcer le mécanisme de mise en tension de manière à relâcher l'application de la force sur le profilé, en particulier lors de la fixation du cadre au bâtiment. Cette solution permet ainsi la fixation et la mise en tension d'une extrémité de la membrane au cadre de manière aisée et même après que le cadre, ou une partie substantielle de ce dernier, a été fixé au bâtiment.This solution has in particular the advantage compared to the prior art of making it possible to defuse the tensioning mechanism so as to relax the application of force on the profile, in particular during the fixing of the frame to the building. This solution thus allows the fixing and the tensioning of one end of the membrane to the frame in an easy manner and even after the frame, or a substantial part of the latter, has been fixed to the building.

Dans un mode de réalisation, le mécanisme de mise en tension comprend :

  • une base liée à l'élément de fixation;
  • un élément de support du profilé ;
  • un dispositif de guidage du support de profilé par rapport à la base ;et
  • un mécanisme vis-écrou pour déplacer le dispositif de guidage par rapport à la base.
In one embodiment, the tensioning mechanism comprises:
  • a base linked to the fixing element;
  • a support element for the profile;
  • a device for guiding the profile support relative to the base; and
  • a screw-nut mechanism for moving the guide device relative to the base.

Dans un mode de réalisation, le mécanisme vis-écrous est positionné entre l'élément de support du profilé et la base de façon à permettre son accès en tout moment, notamment lors d'opérations de manutention de la portion d'enveloppe, à un utilisateur.In one embodiment, the screw-nut mechanism is positioned between the support element of the profile and the base so as to allow its access at all times, in particular during operations for handling the envelope portion, to a user.

Cette solution présente notamment l'avantage par rapport à l'art antérieur de permettre un réglage du dispositif en tout moment, sans demander un démontage, partiel ou complet, de la membrane.This solution has the particular advantage over the prior art of allowing adjustment of the device at any time, without requiring disassembly, partial or complete, of the membrane.

Dans un mode de réalisation particulièrement avantageux, plusieurs mécanismes de mise en tension élastique partagent la même base.In a particularly advantageous embodiment, several elastic tensioning mechanisms share the same base.

Dans un mode de réalisation, l'élément de support du profilé comprend une première extrémité comprenant une tige et une deuxième extrémité comprenant un socle de maintien du profilé, par exemple par vissage.In one embodiment, the support element of the profile comprises a first end comprising a rod and a second end comprising a base for holding the profile, for example by screwing.

Dans un mode de réalisation, le dispositif de guidage comprend un cylindre solidaire de la base.In one embodiment, the guide device comprises a cylinder integral with the base.

Dans un mode de réalisation, le ressort autour de la tige exerce une force entre une extrémité du cylindre et le socle.In one embodiment, the spring around the rod exerts a force between one end of the cylinder and the base.

Dans un mode de réalisation, la portion d'enveloppe de bâtiment comprend au moins une pièce d'angle destinée à opérer entre deux profilés du cadre orientés de façon sensiblement perpendiculaire ou oblique l'un par rapport à l'autre.In one embodiment, the building envelope portion comprises at least one corner piece intended to operate between two sections of the frame oriented substantially perpendicular or oblique to one another.

L'invention concerne également une méthode pour la mise en tension d'une membrane de couverture d'une portion d'enveloppe de bâtiment selon la revendication 10.The invention also relates to a method for tensioning a membrane for covering a portion of a building envelope according to claim 10.

Cette solution permet une fixation de la membrane et sa mise en tension après la fixation de son cadre de support, ou d'une partie substantielle de ce dernier, à l'ouvrage permanent, ce qui facilite ultérieurement les opérations de transport, de montage et de fixation de la portion d'enveloppe au bâtiment.This solution allows the membrane to be fixed and tensioned after fixing its support frame, or a substantial part of the latter, to the permanent structure, which subsequently facilitates transport, assembly and fixing the envelope portion to the building.

La mise en tension peut se faire en une seule opération d'amorçage, sans réglage ; la force de tension est déterminée par le mécanisme de mise en tension élastique.The tensioning can be done in a single priming operation, without adjustment; the tensile force is determined by the elastic tensioning mechanism.

Cette solution permet notamment le transport et l'expédition de la portion d'enveloppe en pièces détachées jusqu'au bâtiment, et de l'assembler uniquement sur place, voire en façade.This solution makes it possible in particular to transport and dispatch the portion of the envelope in spare parts to the building, and to assemble it only on site, or even on the facade.

Cette solution permet notamment l'avantage par rapport à l'art antérieur de faciliter les opérations de fixation de la portion d'enveloppe au bâtiment, vu que le cadre de support, ou au moins une partie substantielle de ce dernier, peut être fixé en pièces détachées au bâtiment avant d'être équipé de la membrane. Les opérations de fixation s'affranchissent ainsi des difficultés liées au poids, à la taille, à la forme et/ou au type de membrane équipant la portion d'enveloppe. Cet avantage est surtout appréciable lors d'une fixation d'une portion d'enveloppe de grandes dimensions à plusieurs mètres de hauteur ou à des endroits du bâtiment difficilement atteignables en même temps par un groupe d'ouvriers. Les risques d'endommager la membrane lors de la fixation de la portion d'enveloppe sont ainsi fortement réduits.This solution allows in particular the advantage compared to the prior art to facilitate the operations of fixing the envelope portion to the building, since the support frame, or at least a substantial part of the latter, can be fixed in building spare parts before being fitted with the membrane. The fixing operations thus overcome the difficulties linked to the weight, the size, the shape and / or the type of membrane equipping the envelope portion. This advantage is especially appreciable when fixing a portion of a large envelope several meters high or at places in the building that are difficult to reach at the same time by a group of workers. The risks of damaging the membrane during the fixing of the envelope portion are thus greatly reduced.

Cette solution offre notamment l'avantage de permettre une mise en tension du cadre au moyen d'un ou de plusieurs éléments de mise en tension élastiques sans exiger d'opérations supplémentaires de réglage de la mise en tension et/ou de l'ajustement de la tension de la membrane. En particulier, la mise en tension et/ou l'ajustement de la tension de la membrane n'exigent pas l'utilisation d'une clef dynamométrique.This solution notably offers the advantage of allowing the frame to be tensioned by means of one or more elastic tensioning elements without requiring additional operations to adjust the tensioning and / or the adjustment of the membrane tension. In particular, tensioning and / or adjusting the tension of the membrane does not require the use of a torque wrench.

Dans un mode de réalisation, l'étape b) comprenant les étapes de :

  • fixation du profilé audit premier élément de fixation au moyen dudit élément de mise en tension élastique ; et
  • fixation de ladite extrémité de la membrane audit profilé.
In one embodiment, step b) comprising the steps of:
  • fixing the profile to said first fixing element by means of said elastic tensioning element; and
  • fixing said end of the membrane to said profile.

Brève description des figuresBrief description of the figures

Des exemples de mise en œuvre de l'invention sont indiqués dans la description illustrée par les figures annexées dans lesquelles :

  • Les figures 1-9 illustrent une réalisation d'une portion d'enveloppe de bâtiment et son système de mise en tension selon l'invention ;
  • Les figures 10A et 10B illustrent deux phases de la mise en tension d'une portion d'enveloppe selon l'invention ;
  • Les figures 11-13 illustrent des variantes de réalisation d'une portion d'enveloppe selon l'invention ;
  • Les figures 14-15 illustrent des pièces d'angle opérant entre des profilés du cadre.
Examples of implementation of the invention are indicated in the description illustrated by the appended figures in which:
  • The figures 1-9 illustrate an embodiment of a portion of a building envelope and its tensioning system according to the invention;
  • The Figures 10A and 10B illustrate two phases of the tensioning of an envelope portion according to the invention;
  • The figures 11-13 illustrate alternative embodiments of an envelope portion according to the invention;
  • The figures 14-15 illustrate corner pieces operating between profiles of the frame.

Exemple(s) de mode de réalisation de l'inventionExample (s) of embodiment of the invention

La présente invention concerne une portion d'enveloppe de bâtiment, tel que portion de façade ou de toiture, pour ouvrage permanent comprenant un mécanisme de mise en tension et d'ajustement de la tension de la membrane de couverture textile.The present invention relates to a portion of a building envelope, such as a facade or roof portion, for a permanent structure comprising a mechanism for tensioning and adjusting the tension of the textile covering membrane.

L'invention propose une portion d'enveloppe de bâtiment répondant aux exigences et aux normes concernant les ouvrages permanents.The invention provides a portion of a building envelope that meets the requirements and standards for permanent structures.

L'invention permet une mise en tension d'une membrane de couverture textile ayant une surface qui varie entre un mètre carré jusqu'à plusieurs dizaines de mètres carrés, voir quelques centaines de mètres carrés, tout en garantissant l'intégrité et l'étanchéité de la membrane.The invention allows a tensioning of a textile covering membrane having a surface which varies between a square meter up to several tens of square meters, or even a few hundred square meters, while guaranteeing the integrity and sealing of the membrane.

La figure 1 illustre une portion d'enveloppe 1 de bâtiment, plus précisément une portion de façade d'un ouvrage permanent, selon l'invention. La portion d'enveloppe comprend une membrane de couverture textile 2 dont les extrémités sont retenues par un cadre de support 3 qui est fixé à un bâtiment par une pluralité d'éléments de fixation 4. Les éléments de fixation peuvent par exemple être vissés sur la façade verticale ou la charpente d'un bâtiment.The figure 1 illustrates a portion of building envelope 1, more precisely a portion of the facade of a permanent structure, according to the invention. The envelope portion comprises a textile covering membrane 2, the ends of which are retained by a support frame 3 which is fixed to a building by a plurality of fixing elements 4. The fixing elements can for example be screwed onto the vertical facade or the frame of a building.

Le cadre de support 3 comprend, comme illustrée par les figures 2 et 3, une pluralité de profilés, ou barres, 5 pourvus d'ancrages 8 pour retenir les extrémités 7 de la membrane 2. Les ancrages peuvent par exemple être constitués par des gorges annulaires dans lesquelles des joncs liés aux bords de la membrane peuvent être glissés.The support frame 3 comprises, as illustrated by the figures 2 and 3 , a plurality of profiles, or bars, 5 provided with anchors 8 for retaining the ends 7 of the membrane 2. The anchors can for example consist of annular grooves in which rods connected to the edges of the membrane can be slid.

Chaque élément de fixation 4 est lié à un ou plusieurs mécanismes 9 de mise en tension élastique arrangés pour exercer une force sur les profilés 5, de manière à mettre en tension la membrane. Les mécanismes de mise en tension élastique 9 comprennent par exemple un ressort 10 qui repousse le profilé par rapport à l'élément de fixation.Each fixing element 4 is linked to one or more elastic tensioning mechanisms 9 arranged to exert a force on the profiles 5, so as to tension the membrane. The elastic tensioning mechanisms 9 comprise for example a spring 10 which pushes the profile relative to the fixing element.

Chaque mécanisme de mise en tension élastique est arrangé pour exercer une force entre le profilé et l'élément de fixation au bâtiment auquel il est lié.Each elastic tensioning mechanism is arranged to exert a force between the profile and the element for fixing to the building to which it is linked.

Les mécanismes de mise en tension 9 comportent en outre des dispositifs de guidage pour guider le déplacement d'un ou de plusieurs profilés 5 par rapport à chaque élément de fixation 4.The tensioning mechanisms 9 also include guide devices for guiding the movement of one or more sections 5 relative to each fixing element 4.

Chaque ancrage 8 du profilé 5 permet de retenir une extrémité de la membrane 2 tout en permettant un déplacement latéral de cette dernière afin de permettre une application efficace d'une pluralité de tensions à la membrane, ceci dans divers directions obliques ou perpendiculaires les unes aux autres.Each anchoring 8 of the profile 5 makes it possible to retain one end of the membrane 2 while allowing a lateral displacement of the latter in order to allow an effective application of a plurality of tensions to the membrane, this in various directions oblique or perpendicular to each other other.

Selon le type, la forme et les dimensions de la portion d'enveloppe, chaque profilé 5 du cadre 3 peut être soumis à une, deux ou plusieurs forces exercées par au moins un mécanisme de mise en tension 9.Depending on the type, shape and dimensions of the envelope portion, each profile 5 of the frame 3 can be subjected to one, two or more forces exerted by at least one tensioning mechanism 9.

Une pluralité de mécanismes de mise en tension 9 peuvent être solidaires du même élément de fixation 4 de façon à guider les déplacements d'une pluralité de profilés 5. Comme illustré dans les figures 1, 11, 12 et 13, les éléments de fixation 4 équipant les quatre coins de la portion d'enveloppe rectangulaire peuvent être pourvus de deux mécanismes de tension 9 agencés pour diriger et pour appliquer une force à des profilés 5 positionnés de manière sensiblement orthogonale l'un à l'autre.A plurality of tensioning mechanisms 9 can be integral with the same fixing element 4 so as to guide the movements of a plurality of profiles 5. As illustrated in the figures 1 , 11, 12 and 13 , the fastening elements 4 equipping the four corners of the rectangular envelope portion may be provided with two tensioning mechanisms 9 arranged to direct and to apply a force to the profiles 5 positioned in a manner substantially orthogonal to one another .

La figure 4 illustre un mécanisme 9 de mise en tension élastique arrangé pour exercer une force sur un profilé 5 du cadre de manière à mettre en tension la membrane. L'élément 17 est une base de fixation à l'élément de fixation 4. L'élément 14 est un support de fixation au profilé 5 du cadre. Le ressort (non visible sur cette figure) exerce une force pour repousser le support 14 par rapport à la base 17.The figure 4 illustrates an elastic tensioning mechanism 9 arranged to exert a force on a profile 5 of the frame so as to tension the membrane. The element 17 is a base for fixing to the fixing element 4. The element 14 is a support for fixing to the profile 5 of the frame. The spring (not visible in this figure) exerts a force to push back the support 14 relative to the base 17.

La figure 5 illustre un arrangement de deux mécanismes 9 de mise en tension élastique, pouvant équiper les éléments de fixation aux angles de portions d'enveloppe rectangulaires. Cet arrangement est agencé pour exercer une première force sur un premier profilé du cadre et une deuxième force sur un deuxième profilé positionné de manière orthogonale au premier profilé. Avantageusement, les deux mécanismes 9 de mise en tension élastique peuvent partager, entièrement ou partialement, la même base 17 et peuvent donc être fixés en une même opération à un élément de fixation 4 commun.The figure 5 illustrates an arrangement of two mechanisms 9 for elastic tensioning, which can be fitted to the fastening elements at the corners of rectangular envelope portions. This arrangement is arranged to exert a first force on a first profile of the frame and a second force on a second profile positioned orthogonally to the first profile. Advantageously, the two elastic tensioning mechanisms 9 can share, entirely or partially, the same base 17 and can therefore be fixed in a single operation to a common fixing element 4.

Les figures 6-8 illustrent des détails d'un mode de réalisation du mécanisme 9 de mise en tension élastique. Comme indiqué, la base 17 permet la fixation du mécanisme 9 à un élément de fixation 4 du cadre 3. La base peut être ainsi pourvue d'une pluralité d'ouvertures oblongues aptes à une fixation et à un réglage fin du positionnement par vissage.The figures 6-8 illustrate details of an embodiment of the mechanism 9 for elastic tensioning. As indicated, the base 17 allows the mechanism 9 to be fixed to a fixing element 4 of the frame 3. The base can thus be provided with a plurality of oblong openings suitable for fixing and fine adjustment of the positioning by screwing.

Le mécanisme 9 comprend ensuite une plateforme 16 solidaire de la base 17 et un élément de support 14 agencé pour le maintien d'un profilé 5. A une extrémité, l'élément de support 14 comprend un socle avec des parois facilitant le maintien et la fixation par vissage du profilé 5, alors que l'autre extrémité est formée par une tige. Cette tige est retenue par un cylindre 13 solidaire de la plateforme 16 dont la fonction est de guider les déplacements de cet élément de support 14 par rapport à la plateforme 16. Cette liaison de type linéaire annulaire permet en outre une rotation de l'élément 14 par rapport à la plateforme 16 ce qui facilité l'opération de fixation du profilé 5 au socle. Dans une variante, il est possible d'inverser la position de la tige et du cylindre.The mechanism 9 then comprises a platform 16 integral with the base 17 and a support element 14 arranged for the maintenance of a profile 5. At one end, the support element 14 comprises a base with walls facilitating the maintenance and fixing by screwing the profile 5, while the other end is formed by a rod. This rod is retained by a cylinder 13 integral with the platform 16 whose function is to guide the movements of this support element 14 relative to the platform 16. This annular linear type connection also allows rotation of the element 14 relative to the platform 16 which facilitates the operation of fixing the profile 5 to the base. In a variant, it is possible to reverse the position of the rod and of the cylinder.

Avantageusement, un ressort est monté autour de la tige de cet élément de support 14 et exerce une force entre le cylindre 13 et le socle de l'élément de support 14 afin de repousser le profilé par rapport à la base.Advantageously, a spring is mounted around the rod of this support element 14 and exerts a force between the cylinder 13 and the base of the support element 14 in order to push the profile relative to the base.

Le mécanisme 9 comprend deux butées 11,12, afin de limiter le déplacement minimal et/ou maximal de l'élément 14 de support par rapport à la plateforme 16. Dans l'exemple des figures 6-8, une goupille 12 limite le déplacement maximal en limitant le déplacement de la tige vers le dehors du cylindre 13. Un disque 11 équipant l'élément 14 permet de limiter le déplacement minimal en empêchant un glissement ultérieur de la tige à l'intérieur du cylindre 13.The mechanism 9 includes two stops 11, 12, in order to limit the minimum and / or maximum displacement of the support element 14 relative to the platform 16. In the example of figures 6-8 , a pin 12 limits the maximum displacement by limiting the displacement of the rod towards the outside of the cylinder 13. A disc 11 equipping the element 14 makes it possible to limit the minimum displacement by preventing subsequent sliding of the rod inside the cylinder 13.

Le mécanisme 9 comprend en outre un mécanisme vis-écrou 15 apte à déplacer linéairement la plateforme 16 par rapport à la base 17. Une extrémité de la vis est retenue par une plaque 18 solidaire de la base 17 alors que l'autre extrémité filetée agit sur un écrou intégré à un axe solidaire à la plateforme 16. Une translation rectiligne 21 de la plateforme 16 est assurée par une extension 19 de la base 17 enveloppant les extrémités latérales de la plateforme 16 de façon à réaliser une liaison glissière. Les déplacements 21 de la plateforme 16 sont dirigés de manière sensiblement coaxiale aux déplacements 20 de l'élément 14.The mechanism 9 further comprises a screw-nut mechanism 15 capable of linearly displacing the platform 16 relative to the base 17. One end of the screw is retained by a plate 18 secured to the base 17 while the other threaded end acts on a nut integrated into an axis integral with the platform 16. A rectilinear translation 21 of the platform 16 is ensured by an extension 19 of the base 17 enveloping the lateral ends of the platform 16 so as to produce a slide connection. The displacements 21 of the platform 16 are directed in a manner substantially coaxial with the displacements 20 of the element 14.

Une translation de la plateforme 16 sensiblement coaxial aux déplacements 20 de l'élément 14 permet de régler finement le déplacement minimal et maximal du profilé 5 par rapport à l'élément de fixation 4.A translation of the platform 16 substantially coaxial with the displacements 20 of the element 14 makes it possible to finely adjust the minimum and maximum displacement of the profile 5 relative to the fastening element 4.

Lors d'une fixation de la membrane au cadre, les plateformes peuvent être ainsi déplacées de façon à désamorcer la mise en tension et à limiter le déplacement maximal des barres 5 au-dessous d'un seuil permettant une fixation aisée des extrémités de la membrane.When attaching the membrane to the frame, the platforms can thus be moved so as to defuse the tensioning and limit the maximum displacement of the bars 5 below a threshold allowing easy attachment of the ends of the membrane .

Une fois terminée cette opération, les plateformes peuvent être déplacées de manière à amorcer la mise en tension et à exercer une ou plusieurs forces de mise en tension sur la membrane au travers des profilés 5.Once this operation has been completed, the platforms can be moved so as to initiate the tensioning and to exert one or more tensioning forces on the membrane through the profiles 5.

De cette façon, l'opération de mise en tension garantie l'application d'une ou plusieurs forces ayant une valeur préétablie de tension maximale, sans l'usage d'une clef dynamométrique.In this way, the tensioning operation guarantees the application of one or more forces having a preset value of maximum tension, without the use of a torque wrench.

Avantageusement, le mécanisme vis-écrous est positionné entre l'élément de support 14 du profilé et la base 17 du dispositif. Ce positionnement permet un accès, en tout moment, au mécanisme vis-écrous afin de procéder à un réglage du déplacement de la plateforme 16 par rapport à la base 17. Lorsque la portion d'enveloppe est équipée de la membrane, cet accès permet une mise en tension ainsi qu'un réglage de la tension de la membrane sans demander le démontage, complet ou partiel de la membrane ou de pièces du cadre.Advantageously, the screw-nut mechanism is positioned between the support element 14 of the profile and the base 17 of the device. This positioning allows access, at any time, to the screw-nut mechanism in order to adjust the movement of the platform 16 relative to the base 17. When the envelope portion is equipped with the membrane, this access allows tensioning as well as adjustment of the membrane tension without requesting the complete or partial disassembly of the membrane or parts of the frame.

Les butées permettent ainsi de cadrer la tension appliquée à la membrane entre une valeur maximale (Figure 9a) et une valeur minimale (Figure 9b). La valeur minimale garantit la fonctionnalité et/ou l'étanchéité de la toiture. La valeur maximale permet de faire face à des importantes variations de la tension, dues par exemple aux changements climatiques et thermiques que la membrane subit, tout en garantissant l'intégrité de la membrane de la couverture textile. La valeur maximale doit en effet éviter l'application d'une tension trop élevée qui pourrait causer des dommages et/ou dégât à la membrane.The stops thus make it possible to frame the tension applied to the membrane between a maximum value ( Figure 9a ) and a minimum value ( Figure 9b ). The minimum value guarantees the functionality and / or waterproofness of the roof. The maximum value makes it possible to cope with significant variations in tension, due for example to the climatic and thermal changes that the membrane undergoes, while guaranteeing the integrity of the membrane of the textile cover. The maximum value must in fact avoid the application of too high a voltage which could cause damage and / or damage to the membrane.

Selon l'invention, la membrane 2 de la portion d'enveloppe 1 d'un bâtiment 6 peut être mise en tension, de manière avantageuse, par les étapes suivantes. Les figures 10a et b illustrent un mode d'application de la méthode appliquée à un cadre rectangulaire.According to the invention, the membrane 2 of the envelope portion 1 of a building 6 can be tensioned, advantageously, by the following steps. The Figures 10a and b illustrate a mode of application of the method applied to a rectangular frame.

La première étape comprend la fixation d'une pluralité d'éléments de fixation du cadre au bâtiment. Les éléments de fixation sont fixés, l'un après l'autre ou parallèlement, au bâtiment.The first step includes fixing a plurality of elements for fixing the frame to the building. The fastening elements are fixed, one after the other or in parallel, to the building.

La deuxième étape concerne la fixation d'une extrémité (7) de la membrane à un profilé (5) du cadre et la fixation du cadre (3) à la pluralité d'éléments de fixation (4).The second step concerns the fixing of one end (7) of the membrane to a profile (5) of the frame and the fixing of the frame (3) to the plurality of fixing elements (4).

Un premier mécanisme 9 de mise en tension est monté sur un premier élément de fixation ainsi qu'un deuxième mécanisme 9 de mise en tension est monté sur un deuxième élément de fixation.A first tensioning mechanism 9 is mounted on a first fixing element and a second tensioning mechanism 9 is mounted on a second fixing element.

Cette étape peut comprendre le désamorçage de chaque ou d'une partie des mécanismes de mise en tension.This step may include defusing each or part of the tensioning mechanisms.

Un ou plusieurs profilés 5 sont ensuite fixés aux éléments 9 de mise en tension. Les profilés 5 se trouvent ainsi positionnés à une distance rapprochée l'un par rapport à l'autre, comme illustré sur la figure 10a.One or more sections 5 are then fixed to the tensioning elements 9. The profiles 5 are thus positioned at a close distance from each other, as illustrated in the figure 10a .

Cette étape comprend la fixation d'une ou de plusieurs extrémités de la membrane aux profilés 5 ainsi fixés.This step includes fixing one or more ends of the membrane to the profiles 5 thus fixed.

Le cadre 3 est ensuite mis en tension en appliquant une force sur chacun des profilés 5 du cadre 3 au moyen d'éléments 9 de mise en tension élastique. Les profilés 5 vont ainsi s'éloigner les uns des autres jusqu'à la obtention de la mise en tension voulu de la membrane. Par raison de clarté, la figure 10b montre les effets d'une application d'une pluralité de forces sur les profilés du cadre en absence de la membrane.The frame 3 is then tensioned by applying a force to each of the profiles 5 of the frame 3 by means of elements 9 for elastic tensioning. The sections 5 will thus move away from each other until the desired tensioning of the membrane is obtained. For the sake of clarity, the figure 10b shows the effects of applying a plurality of forces on the frame profiles in the absence of the membrane.

Cette solution présente notamment l'avantage de permettre une fixation de la membrane et sa mise en tension après la fixation de son cadre de support, ou d'une partie substantielle de ce dernier, à l'ouvrage permanent, ce qui facilite ultérieurement les opérations de transport, de montage et de fixation de la portion d'enveloppe au bâtiment. Cette solution permet notamment l'avantage de pouvoir transporter et/ou d'envoyer la portion d'enveloppe en pièces détachées jusqu'en face du bâtiment concerné.This solution has the particular advantage of allowing the membrane to be fixed and tensioned after fixing its support frame, or a substantial part of the latter, to the permanent structure, which subsequently facilitates operations. transport, assembly and fixing of the envelope portion to the building. This solution allows in particular the advantage of being able to transport and / or send the portion of the envelope in loose parts to the front of the building concerned.

Cette solution permet notamment l'avantage de faciliter les opérations de fixation de la portion d'enveloppe au bâtiment, vu que le cadre de support, ou au moins une partie substantielle de ce dernier, peut être fixé au bâtiment dépourvu de la membrane. Le cadre de membrane peut ainsi être fixé sans être gêné par le poids, la taille, la forme et/ou le type de membrane. Cet avantage est surtout appréciable lors d'une fixation d'une portion d'enveloppe de grandes dimensions à plusieurs mètres de hauteur ou à des endroits du bâtiment difficilement atteignables en même temps par un groupe d'ouvriers.This solution allows in particular the advantage of facilitating the operations of fixing the envelope portion to the building, since the support frame, or at least a substantial part of the latter, can be fixed to the building devoid of the membrane. The membrane frame can thus be fixed without being hindered by the weight, size, shape and / or type of membrane. This advantage is especially appreciable when fixing a portion of a large envelope several meters high or at places in the building that are difficult to reach at the same time by a group of workers.

Cette solution offre notamment l'avantage d'une mise en tension et/ou l'ajustement de la tension garantissant l'intégrité et/ou l'étanchéité de la membrane sans l'utilisation d'une clef dynamométrique.This solution notably offers the advantage of tensioning and / or adjusting the tension guaranteeing the integrity and / or tightness of the membrane without the use of a torque wrench.

Cette solution offre notamment l'avantage par rapport à l'art antérieur d'une mise en tension et/ou l'ajustement de la tension en tout temps, sans demander le démontage complet ou partiel de la membrane ou de pièces du cadre.This solution offers in particular the advantage compared to the prior art of tensioning and / or adjusting the tension at all times, without requiring the complete or partial disassembly of the membrane or parts of the frame.

Cette méthode permet de réduire le temps et les coûts d'installation et de manutention. Le temps d'installation ainsi que les coûts d'une telle toiture dépendent fortement du temps nécessaire à l'exécution de cette manipulation manuelle de mise en tension ainsi que du nombre d'ouvriers nécessaires à l'opération, alors que les opérations de maintenance régulière et extraordinaire comportent en outre le déploiement de plusieurs ouvriers spécialisés ainsi que la mise en sécurité du lieu pendant les opérations de maintenance.This method reduces installation and handling time and costs. The installation time as well as the costs of such a roof strongly depend on the time necessary for the execution of this manual manipulation of tensioning as well as on the number of workers necessary for the operation, while the maintenance operations Regular and extraordinary also involve the deployment of several specialized workers as well as securing the site during maintenance operations.

La membrane ainsi installée et mise en tension reste tendue grâce aux éléments 9 de mise en tension qui appliquent une force constante sur la membrane lorsqu'ils sont amorcés après leur installation.The membrane thus installed and tensioned remains taut thanks to the tensioning elements 9 which apply a constant force to the membrane when they are primed after their installation.

Cette méthode permet d'éviter les difficultés liées à la régulation manuelle de la tension de la membrane par des ouvriers spécialisés agissant séparément sur le positionnement de chaque profilé.This method makes it possible to avoid the difficulties associated with manual regulation of the membrane tension by specialized workers acting separately on the positioning of each profile.

La méthode est adaptée à la mise en tension de portions d'enveloppe de bâtiment ayant des cadres de support rigides répondant aux exigences et aux normes concernant les ouvrages permanents.The method is suitable for tensioning portions of building envelopes with rigid support frames meeting the requirements and standards for permanent structures.

Les figures 11-13 illustrent des variantes des portions d'enveloppe 1 de ce type ayant divers surface ainsi que des profils courbée (Figures 13A et 13B).The figures 11-13 illustrate variants of envelope portions 1 of this type having various surfaces as well as curved profiles ( Figures 13A and 13B ).

Le cadre 3 de support rectangulaire des figures 11A et 11B comprend quatre éléments de fixation 4 chacun supportant deux mécanismes 9 de mise en tension élastique, agissant de manière sensiblement orthogonale l'un par rapport à l'autre. Chaque profilé 5 du cadre est ainsi actionné par deux mécanismes 9, chacun étant lié à un élément de fixation 4 différente de l'autre. Cette configuration s'adapte en particulier aux cadres de taille réduite ainsi qu'aux cadres de forme sensiblement carrée.The rectangular support frame 3 of the Figures 11A and 11B comprises four fixing elements 4 each supporting two mechanisms 9 for elastic tensioning, acting in a manner substantially orthogonal to one another. Each profile 5 of the frame is thus actuated by two mechanisms 9, each being linked to a fixing element 4 different from the other. This configuration is particularly suitable for reduced-size frames as well as for frames of substantially square shape.

Le cadre 3 des figures 12A et 12B comprend en outre deux éléments de fixation 4 intermédiaires, comprenant chacun un mécanisme 9 de mise en tension élastique. Chaque profilé horizontal est ainsi mis en tension par trois mécanismes 9, alors que chaque profilé vertical est tendu par deux mécanismes 9. Chaque mécanisme 9 de mise en tension agissant sur le même profilé est lié à un élément de fixation différent des autres. Cette configuration s'adapte en particulier aux cadres de grande taille et de forme rectangulaire.Frame 3 of Figures 12A and 12B further comprises two intermediate fastening elements 4, each comprising a mechanism 9 for elastic tensioning. Each horizontal profile is thus tensioned by three mechanisms 9, while each vertical profile is tensioned by two mechanisms 9. Each tensioning mechanism 9 acting on the same profile is linked to a fixing element different from the others. This configuration is particularly suitable for large and rectangular frames.

Des cadres ayant d'autres formes polygonales, par exemple triangulaires, pentagonales ou hexagonales, peuvent comprendre
une pluralité d'éléments de fixation 4 chacun comprenant un mécanisme 9 de mise en tension élastique ; et/ou
une pluralité d'éléments de fixation 4 chacun comprenant deux mécanismes 9 de mise en tension élastique agissant dans des directions oblique ou perpendiculaire l'une par rapport à l'autre.Frames having other polygonal shapes, such as triangular, pentagonal or hexagonal, may include
a plurality of fastening elements 4 each comprising a mechanism 9 for elastic tensioning; and or
a plurality of fastening elements 4 each comprising two mechanisms 9 for elastic tensioning acting in oblique or perpendicular directions relative to one another.

Des cadres ayant d'autres formes polygonales plus complexes peuvent comprendre une pluralité d'éléments de fixation 4 chacun comprenant trois ou plus mécanismes 9 de mise en tension élastique agissant dans une ou plusieurs directions.Frames having other more complex polygonal shapes may include a plurality of fasteners 4 each comprising three or more elastic tensioning mechanisms 9 acting in one or more directions.

Des cadres comprenant des formes arrondies peuvent comprendre des profilés courbés, concaves, convexes, semi-circulaires, etc.Frames with rounded shapes can include curved, concave, convex, semi-circular profiles, etc.

La troisième variante de la portion d'enveloppe 1, illustrée par les figures 13A et 13B comprend des éléments de fixation 4 ayant des longueurs variables, voir ajustables. Cette portion d'enveloppe 1 présente deux surfaces distinctes, dont les plans ne sont pas coplanaires l'un à l'autre, au moyen de profilés 5 verticales courbés ou pliables.The third variant of the envelope portion 1, illustrated by the Figures 13A and 13B includes fastening elements 4 having variable lengths, see adjustable. This envelope portion 1 has two distinct surfaces, the planes of which are not coplanar with one another, by means of vertical curved or foldable sections 5.

Des cadres ayant une pluralité de surfaces distinctes peuvent comprendre une pluralité de d'éléments de fixation 4 chacun comprenant une pluralité de mécanismes 9 de mise en tension élastique chacun agissant de manière coplanaire à une de ces surfaces.Frames having a plurality of distinct surfaces may include a plurality of fasteners 4 each comprising a plurality of elastic tensioning mechanisms 9 each acting coplanar to one of these surfaces.

Les portions d'enveloppe de bâtiment doivent répondre à des exigences esthétiques précises pendant toute la durée de leurs présences sur une façade d'un ouvrage.Building envelope portions must meet specific aesthetic requirements for the duration of their presence on a facade of a structure.

La mise en tension ainsi que le maintien de la tension d'une membrane causes des déplacements relatifs entre des couples de profilés orientés de façon oblique ou sensiblement perpendiculaire l'un par rapport à l'autre. Ces déplacements peuvent causer des imperfections esthétiques dans des zones d'angle de la membrane.The tensioning as well as the maintenance of the tension of a membrane causes relative displacements between pairs of sections oriented obliquely or substantially perpendicular to each other. These movements can cause cosmetic imperfections in corner areas of the membrane.

La portion d'enveloppe de bâtiment peut ainsi comprendre des pièces d'angle 50 destinées à opérer entre des profilés 5 du cadre, notamment entre des couple de profilés orientés de façon sensiblement perpendiculaire ou oblique l'un par rapport à l'autre.The building envelope portion can thus include corner pieces 50 intended to operate between sections 5 of the frame, in particular between pairs of sections oriented in a manner substantially perpendicular or oblique to one another.

La pièce d'angle 50 peut être arrangée pour retenir ou supporter ou guider une extrémité ou une partie de la membrane. La pièce d'angle peut être ainsi pourvue de moyen de rétention ou de support ou de guidage d'une partie de la membrane.The corner piece 50 can be arranged to retain or support or guide one end or part of the membrane. The corner piece can thus be provided with means for retaining or supporting or guiding a part of the membrane.

La figure 14 illustre un premier mode de réalisation d'une pièce d'angle permettant de faire face à des éventuelles imperfections esthétiques d'une zone d'angle de la membrane. Par raison de clarté, la figure 14 montre la pièce d'angle 50 agissant entre une couple de profilés 5 en absence de la membrane.The figure 14 illustrates a first embodiment of a corner piece making it possible to face possible aesthetic imperfections of a corner area of the membrane. For the sake of clarity, the figure 14 shows the corner piece 50 acting between a pair of profiles 5 in the absence of the membrane.

Cette pièce est reliée à chaque extrémités des deux profilés 5 de manière mobile de façon à maintenir substantiellement inaltéré la forme externe de la portion d'enveloppe, ceci indépendamment du déplacement relative entre les profilés dû à l'action des mécanismes 9 de mise en tension élastique.This part is connected at each end of the two profiles 5 in a movable manner so as to maintain substantially unaltered the external shape of the envelope portion, this independently of the relative displacement between the profiles due to the action of the tensioning mechanisms 9 elastic.

Dans une variante, une partie de la pièce d'angle peut être arrangé pour glisser à l'intérieure d'une extrémité des profilés 5.Alternatively, part of the corner piece can be arranged to slide inside one end of the profiles 5.

Dans une autre variante, une partie de la pièce d'angle peut être arrangé pour être retenue de façon glissante par une glissière équipant l'une ou les deux extrémités des profilés 5. La glissière peut être positionnée sur une paroi ou dans une cavité d'une ou des deux extrémités. La glissière peut être arrangée, un fois le cadre fixé à l'ouvrage, pour être tournée vers la surface de l'ouvrage ou pour n'être pas visible, par exemple en étant couverte par une partie de la membrane. La glissière peut être positionnée sur le profil externe du profilé 5.In another variant, part of the corner piece can be arranged to be slidably retained by a slide equipping one or both ends of the profiles 5. The slide can be positioned on a wall or in a cavity d one or both ends. The slide can be arranged, once the frame fixed to the structure, to be turned towards the surface of the structure or to be invisible, for example by being covered by a part of the membrane. The slide can be positioned on the external profile of profile 5.

La figure 15 illustre un deuxième mode de réalisation d'une pièce d'angle permettant de faire face à des éventuelles imperfections esthétiques d'une zone d'angle de la membrane. La pièce d'angle de cette variante est, partiellement ou entièrement déformable, de façon élastique. Le coefficient d'élasticité de cette pièce doit être choisi de manière à ne pas influencer de façon sensible l'action des mécanismes 9 de mise en tension élastique. Cette pièce d'angle est arrangée pour être fixée aux extrémités des deux profilés 5. Par raison de clarté, la figure 15 montre cette pièce d'angle 50 agissant entre une couple de profilés 5 en absence de la membrane.The figure 15 illustrates a second embodiment of a corner piece making it possible to face possible aesthetic imperfections of a corner area of the membrane. The corner piece of this variant is, partially or entirely deformable, elastically. The coefficient of elasticity of this part must be chosen so as not to significantly influence the action of the mechanisms 9 for elastic tensioning. This corner piece is arranged to be fixed to the ends of the two profiles 5. For reasons of clarity, the figure 15 shows this corner piece 50 acting between a pair of profiles 5 in the absence of the membrane.

Numéros de référence employés sur les figuresReference numbers used in the figures

11
Portion d'enveloppeEnvelope portion
22
MembraneMembrane
33
CadreFrame
44
Elément de fixationFixing element
55
ProfiléProfile
66
BâtimentBuilding
77
Extrémité de la membraneMembrane end
88
Profil d'ancrageAnchor profile
99
Mécanisme de mise en tensionTensioning mechanism
1010
RessortSpring
1111
Disque de butéeStopper disc
1212
GoupillePin
1313
Cylindre de guidageGuide cylinder
1414
Elément de supportSupport element
1515
Mécanisme vis-écrousScrew-nut mechanism
1616
PlateformePlatform
1717
BaseBased
1818
PlaquePlate
1919
BoiteBox
2020
Axe de déplacement de l'élément de supportSupport element displacement axis
2121
Axe de déplacement de la plateformeAxis of movement of the platform
5050
Pièce d'angleCorner piece

Claims (11)

  1. Building envelope portion (1), such as a façade or roof portion, intended for a permanent structure and comprising:
    a textile covering membrane (2);
    a support frame (3) for the membrane comprising at least one first profile (5) for retaining at least a first end (7) of said textile covering membrane, and a second profile (5) for retaining at least a second end (7) of said textile covering membrane;
    a single fastening element (4) being connected to two elastic tensioning mechanisms (9) so as to exert a force for moving the first profile (5) in a first direction, and a force for moving the second profile in a second direction substantially orthogonal to the first direction;
    a plurality of fastening elements (4) intended to fasten the support frame to said permanent structure (6) ;
    a plurality of elastic tensioning mechanisms (9), each arranged to exert a force between a said profile (5) and a said fastening element (4) to which it is connected so as to tension said membrane, and each mechanism comprising an elastic element configured to adjust the tension of the membrane between a minimum value ensuring the functionality and/or the sealing tightness of the membrane and a maximum value in response to the ageing of the membrane or to a climatic or thermal change, said elastic element (10) being a spring, a Belleville washer stack or an elastomer;
    in which one and the same profile (5) of said at least one first profile is tensioned by a number of said plurality of elastic tensioning mechanisms (9) ;
    each of said number of tensioning mechanisms (9) being connected to a fastening element (4) separate from the other fastening elements of said plurality of fastening elements.
  2. Envelope portion according to Claim 1, in which said tensioning mechanism (9) comprises a stop (11, 12) for limiting the amplitude of the minimum and/or maximum movement of the profile (5) with respect to said fastening element.
  3. Envelope portion according to either of Claims 1 and 2, in which said elastic element is a spring (10).
  4. Envelope portion according to the preceding claim, in which said spring (10) can be deactivated so as to relax the application of said force to said first or second profile (5).
  5. Envelope portion according to one of the preceding claims, in which said elastic tensioning mechanism (9) comprises:
    a base (17) connected to said fastening element;
    a support element (14) for the profile (5);
    a device (13) for guiding the profile support with respect to the base (17); and
    a screw-nut mechanism (15) for moving the guide device with respect to the base (17).
  6. Envelope portion according to the preceding claim when dependent on Claim 3, in which a number of elastic tensioning mechanisms (9) share the same said base (17).
  7. Envelope portion according to either of Claims 5 and 6, in which said guide device comprises a cylinder (13) secured to the base (17) and a rod secured to said support element (14).
  8. Envelope portion according to the preceding claim, in which a second end of said support element (14) comprises a socket for retaining a profile (5) by screwing.
  9. Envelope portion according to the preceding claim when dependent on Claim 4, said spring (10) being mounted around the rod and arranged to exert a force between one end of the cylinder (13) and said socket.
  10. Method for tensioning a covering membrane of a building envelope portion, comprising the steps of:
    a. fastening to the building (6) a plurality of fastening elements (4) intended to fasten a support frame for the membrane (2) to said building;
    b. fastening one end (7) of the membrane to a profile (5) of said frame and fastening said frame (3) to said plurality of fastening elements (4);
    c. tensioning the membrane by means of a plurality of elastic tensioning mechanisms (9), each arranged to exert a force between a said profile of said frame (5) and a said fastening element (4) to which it is connected so as to tension said membrane, and each comprising an elastic element configured to adjust the tensioning of the membrane between a minimum value ensuring the functionality and/or the sealing tightness of the membrane and a maximum value in response to the ageing of the membrane or to a climatic or thermal change, said elastic element (10) being a spring, a Belleville washer stack or an elastomer;
    said tensioning step comprising a step of tensioning the profile (5) by a number of said plurality of elastic tensioning mechanisms (9), characterized in that each of said number of tensioning mechanisms (9) iss connected to an element (4) separate from the other fastening elements of said plurality of fastening elements.
  11. Method according to the preceding claim, said step (b) comprising the steps of:
    fastening the profile (5) to a said first fastening element (4) by means of a said elastic tensioning element (9); and
    fastening said end (7) of the membrane to said profile (5).
EP15718502.6A 2014-04-28 2015-04-28 Mechanism and method for tensioning a sheet of covering for a portion of building envelope Active EP3137702B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1400993A FR3020388B1 (en) 2014-04-28 2014-04-28 MECHANISM AND METHOD FOR THE TENSIONING OF A COVERING MEMBRANE OF A BUILDING ENVELOPE PORTION
PCT/EP2015/059211 WO2015165904A1 (en) 2014-04-28 2015-04-28 Mechanism and method for tensioning a sheet of covering for a portion of building envelope

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EP3137702A1 EP3137702A1 (en) 2017-03-08
EP3137702B1 true EP3137702B1 (en) 2020-03-04

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EP15718502.6A Active EP3137702B1 (en) 2014-04-28 2015-04-28 Mechanism and method for tensioning a sheet of covering for a portion of building envelope

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FR (1) FR3020388B1 (en)
WO (1) WO2015165904A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10961703B2 (en) 2019-08-19 2021-03-30 RAYVA International LLC Corner assembly for a modular wall overlay system

Citations (2)

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JPS61233180A (en) * 1985-04-08 1986-10-17 大成建設株式会社 Film support apparatus in film structure
US20030150147A1 (en) * 2000-05-18 2003-08-14 Rafeal Bieri Device for stretching foil material and poster holder built with said device

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Publication number Priority date Publication date Assignee Title
US20040221972A1 (en) * 2003-05-08 2004-11-11 Tomlinson Carroll Finley Flexible sound absorbing banner mounted on a surface
DE202009012638U1 (en) * 2009-03-23 2009-12-17 Eps Profiled Solutions Gmbh Holding profile, clamping device and facade element
FR2951233B1 (en) * 2009-10-13 2012-03-16 Stephane Lapouge DEVICE FOR FIXING A CANVAS INCORPORATING A COMPENSATION SYSTEM FOR DIMENSIONAL DEFORMATION OF SAID CANVAS
DE102012200960A1 (en) * 2012-01-24 2013-07-25 büro für Leichtbau Tritthardt + Richter Holding and clamping device for flexible, flat goods

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61233180A (en) * 1985-04-08 1986-10-17 大成建設株式会社 Film support apparatus in film structure
US20030150147A1 (en) * 2000-05-18 2003-08-14 Rafeal Bieri Device for stretching foil material and poster holder built with said device

Also Published As

Publication number Publication date
EP3137702A1 (en) 2017-03-08
WO2015165904A1 (en) 2015-11-05
FR3020388A1 (en) 2015-10-30
FR3020388B1 (en) 2017-10-20

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