DK3190242T3 - MEMBRANE SEALING SYSTEM - Google Patents

Description

SEALING SYSTEM FOR MEMBRANE TECHNICAL FIELD

The present disclosure relates to the insulation of walls, in particular the insulation of peripheral walls by the inside of a building.

The present disclosure relates in particular to the lining of a wall of a building, and specifically the placement in this context of a membrane, in particular such as an airtight membrane and possibly a steam control membrane.

BACKGROUND OF THE INVENTION

Over several years, every new building and every new portion of an existing building must comply with requirements of low power consumption.

Good thermal insulation and good airtightness and steam tightness are some of the parameters that make it possible to meet these requirements.

The airtightness of a building characterises its sensitivity with regard to stray air infiltrations or leaks passing through the shell of the building. These air leaks are synonymous with heat loss and a reduction of the effectiveness of thermal insulation. Today, it is compulsory to measure airtightness at the end of construction.

The lining of a wall such as an exterior wall is often used, in renovations or new constructions, to obtain or improve the thermal insulation of the building. A lining facing is mounted on a lining framework which in turn is attached to structural elements of the wall to be lined, at a given distance from same. An insulating sheathing, comprising for example one or more layers of insulating material, as well as an airtight membrane, is inserted between the wall to be lined and the lining facing.

The sealing membrane can optionally have a vapour barrier function. According to its permeability, it then limits or prevents the movement of steam through the assembly made up of the wall and the lining inner partition. The membrane can then have moisture-control properties. This is referred to as a “smart” vapour barrier membrane (smart vapor retarder membrane), in which the permeability to steam varies in accordance with air humidity.

The attachment of the lining framework to the structural elements of the wall to be lined is carried out by means of bracing accessories regularly spaced apart. Each bracing accessory typically comprises a main rod-shaped body extending transversely to the wall to be lined and to the facing, one end of which is provided with means for cantilever attachment to a structural element of the wall to be lined and in which the other end has means for assembling same with the lining framework. Such a bracing accessory is, for example, known from document W02006/061538.

During installation, the insulation sheathing is pinned onto the rods of the bracing accessories, which causes multiple piercing of the layers of fibrous materials and, if need be, of the membrane. This piercing is particularly harmful to the membranes, since their airtightness and possibly their moisture-control functions are thus altered. The piercing of the membrane can also start a tear, which can propagate if tension is applied to the membrane.

In order to partially avoid this problem, it is known to place the membrane on the inside of the lining framework, between the latter and the lining facing. The membrane is thus not crossed by the bracing accessory and can remain intact, at least at first.

This solution, however, is only partial. The attachment of the facing to the lining framework involves piercing the membrane by the attachment elements (clips, screws, nails, etc.), which is detrimental, although to a lesser extent, to the seal of the membrane.

The positioning of the membrane in front of the lining framework raises another technical problem: it does not leave any interstitial space between the membrane and the facing. And yet, it is often necessary to insert, behind the lining facing, various cables or pipes, in particular of a water, ventilation, electricity or communication network. It is then difficultly foreseeable to place the cables and cabling accessories between the membrane and the facing. The cables can, indeed, only be suitably attached through openings made in the membrane. The member is also at risk of being damaged or distended by the cables or accessories for sheathing, attachment or connection.

These cables can admittedly be placed behind the membrane. However, it is then no longer possible to access them for maintenance or upgrading of the cabling installation without removing the membrane or making an opening therein. Moreover, cabling operations may, for the purpose of logistics or upgraded requirements or technologies, be carried out after lining the wall, which likewise requires the removal or opening of the membrane by technicians who are generally not specialised in the lining of walls and insulation.

Another type of sealing system is known from document FR 3 022 935.

SUBJECT AND SUMMARY OF THE INVENTION

One of the aims of the present invention is to provide a system making it possible to solve the aforementioned drawbacks.

In particular, one aim of the present invention is to provide a system which makes it possible to guarantee good airtightness of a building, while keeping a technical space, which can be accessed without piercing the membrane once installed.

This aim is achieved with a sealing system suitable for providing the seal at the periphery of the pinning opening of a membrane pinned onto a rod section extending in an axial direction and provided at the periphery thereof with a plurality of primary ribs, said 'sealing system comprising at least one first jaw suitable for being inserted onto said rod section by an insertion opening, the edge of the insertion opening being suitable for matching the shape of said rod section, and means for locking said jaw in contact with said membrane.

The system according to the invention makes it possible to restore the seal of the membrane, which was lost due to the pinning thereof on the rod, through an engagement between the first jaw and the rod and between the jaw and the membrane. The seal is thus provided on two levels: the edge of the insertion opening of the first jaw is suitable for engaging tightly with the rod section onto which it is inserted in order to provide a seal with the rod, in other words to prevent and/or limit the passage of air through said insertion opening, between the first jaw and the rod, and a zone of the first jaw, located around the insertion opening thereof, is suitable for being locked in contact with a zone of the membrane located around the pinning opening thereof.

Since the edge of the insertion opening of the first jaw is suitable for matching the shape of the ribbed rod section, the first jaw can be mounted in a sealed manner indistinctly along the entire length of the rod section.

Consequently, it is possible, for example, to provide the seal in the vicinity of the pinning opening of a membrane arranged between two insulating layers.

It is also possible to mount two sealing systems according to the invention over one or more ribbed sections of the same rod, in particular in the case of a lining comprising a plurality of membranes, spaced apart, for example, by an insulating layer.

The system according to the invention also makes it possible to keep a technical space between the membrane and the facing, for passing cables, ventilation shafts, plumbing, etc. This technical space can be accessed without piercing the membrane once installed. Its dimensions can be adapted as required.

According to one example, the insertion opening of the first jaw has a profile similar to that of the rod section.

Profile similar to the profile of the rod section is understood herein to refer to a profile that is identical to the profile of the rod section (same shape and same dimensions) or a scaling of said profile (same shape but different dimensions).

Profile of the rod section is understood to be the profile of at least one portion of said section considered in a view along the axial direction thereof, comprising at least one primary rib formed at the periphery thereof.

The profile of the insertion opening is the profile of said opening, viewed in a direction corresponding to the axial direction of the rod once the jaw is mounted on the rod. It should be noted, however, that profile of the opening is understood herein to be its initial shape, resulting directly from the method for manufacturing the jaw, and not the shape thereof after mounting on the rod.

The axial direction of the rod generally corresponds to its axis of symmetry.

According to one example, the edge of the insertion opening of the first jaw can be deformable in order to conform to the profile of the rod section. According to one example, the insertion opening can be undersized with respect to the profile of the rod, so that the opening widens by engaging with the rod, during the insertion onto same. According to another example, the insertion opening can, conversely, be oversized relative to the profile of the rod. In this case, the first jaw is deformable and means can be implemented for deforming said jaw and bringing the edges of the insertion opening thereof in contact with the rod, once the jaw is inserted onto the rod, acting as a gland.

In this case, it may be advantageous for the profile of the insertion opening to correspond to the profile of the rod section (for example, a scale version of the profile of the rod section).

The primary ribs formed at the periphery of the rod section can be separate from one another, and parallel to one another.

They can be perpendicular to the axial direction of the rod section, orform an angle other than 90° with said direction.

The primary ribs can, in particular, form a thread.

According to one provision, the primary ribs of the rod section are truncated over at least one truncated primary angular portion of the rod. In this case, the edge of the insertion opening of the first jaw can be adapted to match the edge of said truncated primary ribs, in order to provide the seal with the rod.

In the rest of the present disclosure, the contact zone of the first jaw is said to be the zone of said jaw, located around the insertion opening thereof, intended for engaging with a zone of the membrane located around the pinning opening thereof. According to one provision, this contact zone is continuous and closed onto itself. It forms, for example, a circle or an oval.

In a specific arrangement, the first jaw can also comprise a plurality of contact zones, preferably all continuous and closed onto themselves, and concentric overall, in order to produce a plurality of consecutive seal levels.

The means for locking the first jaw in contact with the membrane can be of different types.

They can, for example, comprise adhesive means.

In this case, the first jaw is suitable for becoming adhered to the membrane. For example, the contact zone of the first jaw with the membrane comprises at least one preglued portion, optionally protected by a retractable film. In this case, the seal can optionally be provided by the first jaw only.

According to a specific arrangement, the sealing system can also comprise a second jaw suitable for being inserted onto the rod section.

The second jaw is obviously intended for being mounted on the rod on the side of the membrane which is opposite the first jaw. The membrane is thus deposited between the two jaws.

The locking means can comprise means for blocking the two jaws relative to one another in a locking position in which the membrane is clamped between said jaws around the pinning opening thereof.

The locking means can, in particular, comprise clipping means.

According to one alternative embodiment, the locking means can comprise means for screwing one of the first jaw and the second jaw to the other jaw.

The locking means can also comprise means for blocking the translation of the jaws on the rod, in the axial direction.

According to one example, the second jaw is suitable for being inserted onto the rod section by a mounting opening and said jaw has at least one secondary rib projecting towards the inside of the mounting opening, the secondary rib being suitable for engaging with primary ribs formed at the periphery of the rod section to block the translation of said second jaw on the rod section.

According to one example, the at least one secondary rib of the second jaw is truncated over at least one angular portion.

The first jaw can also have means for engaging with the primary ribs of the rod section to block the translation of said jaw relative to the rod section, in the axial direction.

These means comprise, for example, at least one tab projecting towards the inside of the insertion opening, and capable of deforming resiliently. During the insertion of the first jaw onto the rod, the tab deforms by engaging with the peripheral edges of the primary ribs. Then, it returns resiliently to the initial position thereof, projecting from the periphery of the insertion opening towards the inside of said opening. In this position, it engages with at least one primary rib to block the translation of the first jaw on the rod, in the axial direction. Preferably, in this position, it is axially immobilised between two adjacent primary ribs of the rod section.

According to one example, the jaws are configured to clamp the membrane axially, around the pinning opening thereof, in the locking position.

As an alternative, or as a complement, the first and second jaws can comprise means suitable for engaging so as to radially clamp the membrane, around the pinning opening thereof. A zone for clamping the membrane between the first and second jaws is preferably a continuous zone closed onto itself.

According to a specific arrangement of the invention, the first and second jaws are configured to clamp the membrane over a first continuous zone, closed onto itself, and over a second continuous zone, closed onto itself, surrounding the first zone, in locked position.

According to one example, the second jaw has higher rigidity than that of the first jaw. The first jaw is, for example, made of thermoplastic elastomer, while the second jaw is, for example, made of polyolefin (for example, polypropylene or polyethylene), optionally filled with glass fibres or talc.

According to one example, the first jaw, which is more flexible, can then be capable of deforming resiliently against the second jaw, in locked position, the resilient return of the first jaw against the membrane providing the seal around the pinning opening.

The present disclosure also relates to an assembly for lining a wall, comprising: a sealing system as defined beforehand, and a bracing element comprising a rod that includes a free pinning end and at least one ribbed section provided at the periphery thereof with a plurality of primary ribs, and means for attachment to the wall to be lined.

According to one example, the lining assembly also comprising a holding element of a lining structure, suitable for being mounted on the bracing element.

According to one example, the primary ribs of the rod section are truncated on at least one truncated primary angular portion of the rod.

According to one example, the sealing system comprises a second jaw suitable for being inserted onto the rod section, the second jaw has at least one secondary rib suitable for engaging with primary ribs formed at the periphery of the rod section for blocking the translation of said second jaw on the rod section and the at least one secondary rib of the second jaw is truncated on at least one truncated secondary angular portion corresponding to the non-truncated portion of the rod so that the second jaw is free to slide along the rod section, in the axial direction, in at least one angular position around said rod section.

The present disclosure also relates to a wall lining, comprising: bracing elements attached to the wall to be lined, said bracing elements each comprising a rod that includes a free pinning end and at least one ribbed section provided at the periphery thereof with a plurality of primary ribs, at least one heat and/or sound insulating layer pinned onto or inserted between the bracing elements, a membrane pinned onto the bracing elements, on each bracing element, at least one first jaw inserted via an insertion opening onto the ribbed rod section of said bracing element, said first jaw being in a locked position in contact with the membrane, and the edge of the insertion opening of each first jaw matching the shape of said rod section, on each bracing element, an element for holding a lining structure.

In the present application, for example, a heat and/or sound insulating layer comprises or is made up of a series of panels or widths of insulating material, in particular a fibrous material of animal origin or of plant or mineral wool. A heat and/or sound insulating layer can also comprise one or more vacuum insulated panels (also referred to as VIP panels) made up, in a known fashion, of a membrane shell that provides the gas tightness and a rigid panel made of a porous material having insulating properties, placed inside said shell and kept under vacuum by means of said shell. The porous panel, which is most frequently made of a material such as fumed silica, precipitated silica, an aerogel, perlite and glass fibres, shapes the panel and grants it its mechanical strength.

The lining can also comprise a lining structure, attached to the holding element. A lining structure typically comprises an element of a lining framework, in particular a profile member (also referred to as “furring”), and a facing panel, for example a plaster board.

According to one example, the lining also comprises, on each bracing element, at least one second jaw inserted onto the ribbed rod section of said bracing element, the first and second jaws being blocked relative to one another in a locking position in which the membrane is clamped between said jaws around the pinning opening thereof.

The present disclosure finally comprises a method for lining a wall, which comprises: a) attaching bracing elements to the wall, each comprising a rod that includes a free pinning end and at least one ribbed section provided at the periphery thereof with a plurality of primary ribs, b) pinning onto, or inserting between, the bracing elements at least one heat and/or sound insulating layer, c) in this order or in reverse order, pinning a membrane onto the bracing elements, inserting a first jaw onto the ribbed rod section of each bracing element, the edge of the insertion opening of said first jaw matching the shape of said rod section, and locking said first jaw in contact with the membrane, d) inserting, onto each bracing element, an element for holding a lining structure, and e) placing a lining structure in contact with at least one holding element.

According to one example, the lining method also comprises, in step c), the insertion of a second jaw onto the ribbed rod section of each bracing element, the locking of said first jaw against the membrane comprising the blocking of the two jaws relative to one another in a locking position in which the membrane is clamped between said jaws around the pinning opening thereof.

Several embodiments are described in the present disclosure. However, unless otherwise specified, the features described in relation with one embodiment can be applied to any other embodiment.

BRIEF DESCRIPTION OF THE FIGURES

The invention will be better understood and its advantages will appear more clearly on reading the following detailed description of several embodiments presented by way of non-limiting examples. The description refers to the accompanying drawings, in which: - figure 1 is a cross-sectional view of a wall lining using a sealing system according to a first embodiment of the present invention; - figure 2 is a cross-sectional view along ll-ll of figure 1; - figure 3 is a more detailed version of the sealing system of figure 1, in locked position on the rod of a bracing element (the membrane between the two jaws being omitted for the sake of clarity); - figure 4 is an exploded view of figure 3; - figure 5 is a perspective view of the rear face of the first jaw of the sealing system of figure 3; - figure 6 shows a sealing system according to a second embodiment of the invention, in locked position on the rod of a bracing element (the membrane between the two jaws being omitted for the sake of clarity); - figure 7 is a perspective view of the front face of the first jaw of the sealing system of figure 6; - figure 8 is a perspective view of the rear face of the second jaw of the sealing system of figure 6; - figures 9 and 10 show the front and rear faces, respectively, of a sealing system according to a third embodiment of the invention; - figures 11 and 12 show an alternative embodiment of the first embodiment of figures 1 to 5.

DETAILED DESCRIPTION OF THE EMBODIMENTS

Figures 1 and 2 show an inner insulating lining 1 of a wall F of a building, in particular a peripheral exterior wall, by means of a sealing system according to the invention.

The lining 1 typically comprises: a plurality of bracing elements 2 attached to the wall F by the rear end thereof, and each comprising a rod 10, provided with a ribbed section 11 and a free pinning end 10a at the front end thereof, at least one heat and/or sound insulating layer 3 made up, for example, of a series of panels or widths of insulating material, in particular a fibrous material of animal origin or plant or mineral wool, or, according to another example, a series of VIP-type panels, pinned onto or inserted between the bracing elements 10, a sealing membrane 4 (with airtightness and optionally vapour-barrier function, in particular with moisture control) pinned onto the bracing elements 2, in front of the insulating layer 60, in particular a polypropylene or polyamide membrane, for example with a thickness of 200 to 400 pm, holding means 5 of a lining structure 6, attached to the front end of the bracing elements 2.

According to the invention, the lining 1 also comprises, on each bracing element 2, a sealing system (here according to a first embodiment) 100 suitable for providing the seal at the periphery of the pinning opening 4a of the membrane 4 pinned onto the rod 10 of said bracing element 2.

For the rest of the present disclosure, an axial direction is defined as being a direction parallel to the axis X of the rod of a bracing element 2. A radial direction is also defined as a direction orthogonal to the axial direction and passing by the axis X.

Finally, an axial plane is defined as a plane passing by the axis X, and a radial plane as a plane orthogonal to the axis X.

The terms front and rear are used below in connection with the axial direction X and the assembly direction of the lining 1. Thus, a front portion of an element will be further away from the wall P to be lined and closer to the lining facing than a front portion of the same element.

The rod 10 of a bracing element 2 is, for example, an injection-moulded part, made of polyamide.

Each bracing device 2 comprises, at a so-called rear first end 10b of the rod 10, means for cantilever attachment of same to the wall F. Once the bracing element 2 is attached, the rod 10 thereof extends generally orthogonally to the wall to be lined F.

These means for cantilever attachment to the wall comprise, for example, means for clipping onto a profile member P previously attached to the wall, in particular by screwing. As shown in figures 3 and 4, the bracing element can, for example comprise a clipping base 16 provided, at the periphery thereof, with notches 16a (in this case two parallel notches) intended for receiving the curved arms of a generally C-shaped profile member P.

These means can, as an alternative or complement, as is the case with the example shown, comprise at least one mounting plate 17 provided with at least one screwing hole 17a for attaching the bracing element 2 to the wall F or to the profile member P attached beforehand to the wall F, by means of screws.

The second end 10a of the rod 10, referred to as front end (the end thereof furthest from the wall to be lined in mounted position), is configured to allow the piercing of the sealing membrane 4 and optionally the pinning of the one or more insulating layers 3, and for this has a pointed ending.

As shown in figures 3 and 4, the rod 10 comprises at the periphery thereof, on at least one section 11, a plurality of ribs 12 referred to as primary ribs, regularly spaced apart from one another herein, parallel to one another, and orthogonal to the axial direction X.

In the specific example shown, the rod 10 (with its ribs) is truncated over two truncated primary angular portions 13a, 13b, in this case diametrically opposed, each truncated primary angular portion 13a, 13b extending over an angle strictly higher than 90°, for example, but not exhaustively, comprised between 120 and 150 degrees. Non truncated primary portions 14a, 14b of the rod are defined between these truncated primary portions.

Each rib thus comprises two rib portions located respectively at a non-truncated primary portion 14a, 14b, diametrically opposed, and symmetrical relative to an axial plane of the bracing element.

Each of these rib portions 12a, 12b is provided in the form of a ring sector comprising, in radial section, a main curved edge 15a, and two side edges 15b, 15c forming therebetween an angle strictly lower than 90°, for example but not exhaustively, comprised between 30 and 60 degrees.

At least one stiffening rib can optionally be provided at the truncated primary angular portions 13a, 13b of the rod 10. As shown in figure 3, the rod 10 comprises, for example, an axial stiffening rib 18 in line with each truncated primary angular portion 13a, 13b, and a plurality of radial ribs 19 preferably spaced apart regularly in axial direction X, connecting the primary rib portions 12a, 12b.

As shown in figure 2, each holding element of a lining structure 5 is suitable for being mounted on the rod 10, at the front end 10a thereof. An element for holding a lining structure 5 is advantageously (but not exclusively) of the type described in patent application W02006/061538. In this case, it comprises a cavity 5a by which is it suitable for being mounted on the rod, said cavity being tapped to engage with the primary ribs 12 of the rod section 11, to block the translation thereof in the axial direction X. Typically, the element 5 for holding the lining structure comprises clipping means 5b for clipping to a profile member of the lining framework, in particular in the form of notches suitable for receiving the curved edges of the profile member. For further information, please consult the text of the aforementioned application.

The lining structure 6 typically comprises profile members 6a suitable for clipping onto the holding means 5, and wallboards 7 suitable for being screwed onto said profile members 6a.

The sealing system 100 of figures 1 and 2 will be described in greater detail below, in connection with figures 3 to 5.

As mentioned beforehand, the sealing system 100 is suitable for providing the seal at the periphery of the pinning opening 4a of the membrane 4 pinned onto the rod 10.

In the example, it comprises a first jaw 120, having an insertion opening 121 of which the edge 122 is suitable for matching the profile of the ribbed rod section 11 and thus for providing a seal with the rod 10, a second jaw 130, and means for locking the first jaw 120 in contact with the membrane 4.

As shown in figures 1 to 3 in particular, the second jaw 130 is intended for being mounted on the rod 10 before pinning the membrane 4, while the first jaw 120 is intended for being mounted on the rod 10 after pinning the membrane 4. In mounted position, the second jaw 130 is thus placed behind the membrane 4, and the first jaw 120 is placed in front.

The two jaws are here capable of both being blocked on the rod in a relative locking position in which the membrane 4 is clamped between said jaws 120, 220 around the pinning opening 4a thereof.

In the specific example shown, the jaws are configured to clamp the membrane in the axial direction at a first contact zone, and in the radial direction, at two other concentric contact zones.

The first and second jaws are described in greater detail below.

In the example, the second jaw 130 is provided in the form of a relatively rigid plate, for example made of polypropylene (optionally reinforced by glass fibres). The plate 130 has a central mounting opening 131, having a generally circular section, for mounting same on the rod 10 (by the free end 10a thereof).

As will be described below, the plate 130 is suitable for being mounted and blocked on the rod according to a bayonet or quarter-turn system.

As shown in figure 4, an annular rib 132, hereinafter secondary rib, projects towards the inside of the central mounting opening 131.

In the example, the secondary rib 132 is truncated on two angular sectors 133a, 133b with an angle higher than the angle of the non-truncated primary portions 13a, 13b of the rod, and diametrically opposed.

The plate 130 is thus free to slide along the rod section 11, in the axial direction X, when the secondary rib portions 132a, 132b thereof are opposite the truncated portions 13a, 13b of the rod and the truncated portions 133a, 133b thereof are opposite the non-truncated portions of the rod 14a, 14b, supporting the rib portions 12a, 12b (unblocked position of the plate).

Conversely, the plate 130 is translatably blocked in the axial direction X along the rod 10 when the secondary rib portions 132a, 132b thereof are opposite non-truncated portions of the rod 14a, 14b, and the truncated portions 133a, 133b thereof are opposite truncated portions 13a, 13b of the rod (blocked position of the plate).

According to an advantageous arrangement of the invention, at least one of the secondary rib portions 132a, 132b is provided with an end-of-travel abutment 134 configured to block the rotation of the plate 130 relative to the rod 10 in a rotation direction R about the axis X, engaging with a side edge 15b or 15c of a primary rib 12 or of two parallel adjacent primary ribs, in blocked position.

The plate 130 is thus mounted on the rod 10 by performing a translation-twist movement that is typical of bayonet systems. It is first translated along the rod 10, in the axial direction X, in unblocked position, and then twisted about the axis of the rod, in the direction R, the secondary ribs thereof then sliding between two primary ribs of the rod section until the abutment 134 comes into contact with the side edge of at least one of said primary ribs 12. The twist performed generally corresponds to a quarter turn. Gripping notches 138 can advantageously be provided on the periphery of the plate 130 so as to facilitate the rotation thereof by the user.

In the example, the first jaw 120 is a flexible patch, for example made of thermoplastic elastomer (for example, SEBS). Here it has a circular section, with diameter D1.

In the example shown in figures 4 and 5, the patch 120 is rounded, with the front face 120a thereof concave and the rear face 120b thereof convex.

As shown in figure 4, the patch 120 is provided with a central opening forming an insertion opening 121, the edge 122 of which has a profile identical to that of the ribbed rod section 11.

Due to its flexibility, the patch 120 can be inserted easily onto the rod 10 and moved along same, in the axial direction X.

Once the patch 120 is mounted on the rod 10 (see figure 3), the edge of the insertion opening 122 exactly follows the edges of the ribs 12 that it surrounds, like the edge of the possible stiffening grooves 18 of the rod, blocking the passage of air between the patch 120 and the rod 10.

The axial clamping of the membrane between the two jaws is thus carried out when the patch is placed in an axial position that is close enough to the plate 130 (locked position of the system). It is then deformed resiliently against an advantageously planar portion of the front face 130a of the plate 130, the plate 130 and the patch 120 thus clamping the membrane 4, in the axial direction X. Due to its resilient deformation, the patch 120 is then locked in contact with the membrane 4 on a first contact zone.

To ensure the locking thereof on the rod 10 in the axial direction X, the patch 120 is provided with two tabs 123 projecting towards the inside of the insertion opening 121, and capable of deforming resiliently. During the insertion of the first jaw 120 onto the rod 10, each tab 123 deforms by engaging with the peripheral edges 15a of the primary ribs 12. Once the patch 120 is held in position, each tab 123 resiliently returns to the initial state thereof, projecting towards the inside of said insertion opening 121 from the periphery thereof. In this position, it is axially immobilised between two primary ribs 12 adjacent to the rod section 11 to block the translation of the patch 120 on the rod 10, in the axial direction X.

In the example shown, the plate 130 and the patch 120 are also suitable for radially clamping the membrane, in locked position.

As shown in figure 5, the patch 120 has, for this purpose, on its rear face, a projecting portion 124 having a radially outer clamping surface 124a extending in the axial direction, said surface 124a being annular, continuous, and closed onto itself around the insertion opening 121.

As shown in figure 4, the plate 130 is also provided with two annular ribs on the front face thereof. A first rib 135, located in the vicinity of the mounting opening, defines, with the radially inner face 135a thereof, a cylindrical cavity, advantageously flared towards the front.

Once the system is in locked position, the projecting portion 124 of the patch 120 is inserted into the cavity 135 of the plate 130, the membrane 4 thus being clamped between the radially inner surface 135a of the cavity 135 and the radially outer surface of the projection 124. A second rib 136 runs along the peripheral edge of the plate 130. The radially inner surface 136a thereof has, in figure 4, a diameter D2, slightly larger than the diameter D1 of the patch 120.

Once the system is in locked position, the peripheral edge 124 of the patch 120 (which is widened in the crushed position thereof) engages with the radially inner surface of the rib 136, so as to clamp the membrane 4 radially between the patch 120 and the plate 130 in a third zone that is continuous and closed onto itself.

Between the first and second ribs, the front face of the plate 130 is planar overall. A lining method using the sealing system 100 described beforehand comprises at least the following steps:

In a first step, bracing elements 2 are attached to the wall to be lined F, for example by snap-fitting the clipping base 13 thereof onto a generally horizontal profile member P, attached beforehand to said wall F.

In a second step, at least one heat and/or sound insulating layer 3 is pinned onto or inserted between the bracing elements 2.

In a third step, a plate 130 is inserted onto the ribbed rod section 11 of each bracing element 2, and blocked in position, generally against the insulating layer 3, by a quarterturn twist.

In a fourth step, a membrane 4 is pinned onto the bracing elements 2,

In a fifth step, a patch 120 is inserted onto the rod 10 until a locked position in which it is resiliently deformed, the rear face thereof resting axially against the planar portion of the front face of the plate 130. In this position, the projecting portion 124 of the patch 120 is inserted into the cavity 135 of the plate 130, and the peripheral edge of the patch 120 comes into contact with the rib 136 of the plate 130. The membrane 4 is thus in contact with the patch around the pinning opening 4a thereof, in three concentric contact zones, continuous and closed onto itself, corresponding to the pinching areas of the two jaws.

In a sixth step, a holding element 5 of a lining structure is inserted onto each bracing element 2.

In a seventh step, a lining structure 6 is placed in contact with at least one holding element 5.

The example described above does not have a limiting effect. An alternative embodiment of this first embodiment is shown, in particular, in figures 11 and 12.

The first jaw here lacks tabs 123, and the means for locking the two jaws in position relative to one another in the locking position comprise clipping means.

As shown in figure 11, the first jaw 120 comprises male elements 127, in particular forming harpoons or mushrooms, projecting from the rear surface 120b thereof.

These male elements 127 are suitable for engaging with corresponding openings 137 formed on the front face of the second jaw (see figure 12), without piercing the membrane.

In the example of figures 11 and 12, the male elements 127 are sized so that the assembly formed by the head thereof covered by the membrane is suitable for clipping into a respective opening 137.

Figures 6 to 8 show a sealing system 200 according to a second embodiment of the invention.

In this embodiment, the system 200 comprises a first jaw (hereinafter body) 220 having an insertion opening 221 in which the insertion edge 222 is suitable for matching the profile of the ribbed rod section 11 and thus providing a seal with the rod 10, a second jaw (hereinafter nut) 230, and means for locking the first jaw in contact with the membrane.

As shown in figure 6, the body 220 is intended for being mounted on the rod 10 before pinning the membrane 4, while the nut 230 is intended for being mounted on the rod 10 after pinning the membrane 4. In mounted position, the body 220 is thus placed behind the membrane 4, and the nut 230 in front.

As will be described in detail hereunder, the first and second jaws 220, 230 form a gland-type system.

The nut 230 is capable of engaging radially with the first jaw (body of the gland) 220 for deforming the edge of the insertion opening 222 of this jaw 220 until the latter matches the profile of the ribbed rod section 11, thus producing the seal with the rod 10. This position corresponds to the locked position of the system.

In this position, the nut 230 and the body 220 are moreover suitable for axially clamping the membrane 4 therebetween.

The means provided herein for blocking the two jaws in the locking position comprise screwing means.

The structure of the body 220 and the nut 230 is described in greater detail hereunder.

As shown in figure 7, the body 220 has a hollow cylindrical general shape, in which the through-cavity 221 forms an insertion opening for inserting said body 220 onto the rod 10 of a bracing element 2.

The body 220 is preferably made of a relatively flexible material, in particular a thermoplastic elastomer such as SEBS. In the specific embodiment shown, the profile of the edge 222 of the insertion opening 221 is a scale version of the rod section 11. The insertion opening 221 is thus wide enough to allow the insertion of the body 220 onto the rod section 11, but narrow enough for the friction of the edge 222 on the rod section 11 to hold the body 220 provisionally in place before placing the nut 230. In mounted but unlocked position, the body 220 does not form a seal with the rod 10.

As shown in figure 7, the body 220 comprises at least: a threaded portion 223 provided with a thread on the periphery thereof, an outer flange 224 extending radially outwards, preferably on one side (rear side) of said threaded portion 223 and an end sealing portion 225 on the other side (front side) of said threaded portion 223.

Preferably, as shown in figure 7, the sealing portion 225 has, on at least one portion of the axial length thereof, a section that narrows gradually towards the front end of the body 220a. It has, for example, an overall frustoconical shape.

The sealing portion 225 is also provided with a plurality of through-notches 226, substantially parallel, extending axially until the front end 220a of the body 220 into which they lead. The notches 226 thus define a plurality of separate sectors.

The nut 230 is shown in greater detail in figure 8.

Like the body 220, the nut 230 has an overall cylindrical shape. However, it is preferably made of a material that is more rigid than that forming the body, in particular a polyolefin, for example polypropylene or polyethylene (optionally filled with fibreglass or talc).

As shown in figure, the nut 230 is provided with a cavity 231 opening at least at the rear end 230b, by which it is suitable for being mounted on the body 220.

The nut 230 comprises at least: a tapped cavity section 233 suitable for engaging by screwing with the threaded portion 223 of the body, further forward, a guiding cavity section 235 suitable for engaging with the sealing portion of the body 225 to deform said portion by moving the sectors radially inwards, so as to bring the edge of the insertion opening 222 into close contact with the rod section 11, and an outer flange 234 capable of moving towards the outer flange 224 of the body 220 during screwing, the two flanges 224, 234 being located axially opposite one another so as to be able to clamp the membrane 4 between them in the locked position of the system.

During assembly, the body 220 is first mounted on the rod 10. Then, the membrane 4 is pinned onto the rod 4, and optionally onto the rear portion of the body 220. Then, the nut 230 is mounted on the rod 10, and screwed onto the body 220. By penetrating into the guiding section 235 of the cavity of the nut 230, the sealing portion 225 of the body 220 is deformed, in order to provide the seal at the periphery of the rod 10. At the same time, the membrane 4 is clamped between the two flanges 224, 234, of the body 220 and the nut 230, respectively, for providing the seal around the pinning opening 4a of the membrane 4. The membrane can also be clamped radially between the body 220 and the nut 230.

Figures 9 and 10 show a sealing system 300 according to a third embodiment of the invention.

In this third embodiment, the sealing system 300 comprises a single jaw 320, presented in the form of a patch. As in the first embodiment described above, the jaw 320 has an insertion opening 321 with an identical profile to that of the ribbed rod section 11.

The means that make it possible to lock said jaw 321 in contact with the membrane 4 here comprise a strip of adhesive material 329 arranged on the rear face 320b of the jaw 320.

To facilitate adherence, the rear face 320b of the jaw 320, or at least said preglued portion, is preferably planar.

During assembly, the jaw 320 is simply inserted onto the rod section 11 and then adhered to the membrane 4, by placing the strip 329 in contact with the front face of the membrane 4.

The examples described above, however, do not have a limiting effect.

In particular, although all the jaws described above in connection with the figures are presented as monolithic elements, each of these parts may, as an alternative, be made as a plurality of portions attached to one another in an appropriate fashion.

Furthermore, although figures 1 and 2 show a lining comprising a single membrane and a single insulating layer, it is also possible to implement a sealing system according to the invention to provide the seal of a membrane arranged between two insulating layers. It is also possible to use a plurality of sealing systems according to the invention, of the same type or of a different type, on the same bracing element, in the case of a lining comprising a plurality of membranes, for example separated by one or more insulating layers.

Claims (18)

SEALING SYSTEM FOR MEMBRAN PATENT REQUIREMENTS A sealing system (100, 200, 300) suitable for sealing the periphery of the aperture opening (4a) in a diaphragm (4) spaced on a rod section (11) extending in an axial direction (X) and is provided with a plurality of primary ribs (12) at its periphery, the sealing system comprising at least one first jaw (120, 220, 320) suitable for insertion into the rod section (11) via an insertion opening (121, 221, 321) ) and means for locking the jaw when in contact with the membrane, the sealing system being characterized in that the rim (122, 222, 322) of the insertion opening is suitable for assuming the shape of the rod section (11). A sealing system (100, 300) according to claim 1, wherein the first jaw (120, 230) insertion opening (121, 321) has a profile corresponding to the profile of the rod section (11). Sealing system (200) according to claim 1 or 2, wherein the rim of the first opening (221) of the first jaw (220) is deformable to conform to the profile of the rod section (11). A sealing system (300) according to any one of claims 1 to 3, wherein the locking means comprise adhesives. A sealing system (100, 200, 300) according to any one of claims 1 to 4, wherein the contact zone between the first jaw (120, 220, 320) and the diaphragm (4) is continuous and closed about itself. A sealing system (100, 200) according to any one of claims 1 to 5, further comprising a second jaw (130, 230) suitable for insertion on the rod section (11). The sealing system (100, 200) of claim 6, wherein the locking means comprise means for blocking the two jaws relative to each other in a locking position, wherein the diaphragm (4) is wedged between the jaws (120, 220; 130, 230) around its spigot opening (4a). The sealing system (100, 200) of claim 7, wherein the locking means comprise clip means (127, 137). The sealing system (100, 200) of claim 7 or 8, wherein the locking means comprise means for screwing (223, 233) one of the first and second jaws of the second / opposite jaws. A sealing system (100, 200) according to any one of claims 6 to 9, wherein the jaws (120, 220; 130, 230) are arranged to clamp the diaphragm (4) axially about its aperture in the locking position. A sealing system (100, 200) according to any one of claims 6 to 10, wherein the first and second jaws (120, 130) comprise means suitable for cooperating to clamp the membrane radially around its aperture opening. Sealing system (100, 200) according to any one of claims 6 to 11, wherein the second jaw (130, 230) has a greater stiffness than the first jaw (120, 220). Sealing system (100) according to any one of claims 6 to 12, wherein the first jaw (120) and / or the second jaw have means for cooperating with the primary ribs (12) of the rod section (11) for blocking the translation of the jaw (120) relative to the rod section (11) in the axial direction (X). A set for cladding a wall (F) comprising - a sealing system (100, 200, 300) according to any one of the preceding claims, - a stiffening element (2) comprising a rod (10) which comprises an end (10a) which is free of sputtering and at least one rib (11), which has at its periphery a plurality of primary ribs (12), and means for fastening to the wall to be clad (13, 14, 15). A wall covering comprising - bracing elements (2) fixed to the wall to be clad (F), the bracing elements (2) each comprising a bar (10) comprising an end (10a) free of and at least one ribbed section (11) provided at the periphery with a plurality of primary ribs (12) - at least one layer of thermal and / or acoustic insulation (3) spaced on or inserted between the stiffening elements (2). ), - a membrane (4) spaced on the stiffening elements (2), - on each stiffening element (2), an element (5) for retaining a cladding structure (6), - on each stiffening element (2), at least one first jaw (120, 220, 320) inserted through an insertion opening (121, 221, 321) on the ribbed bar section (11) of the stiffening member (2), the first jaw (120, 220, 320) being in a locked position in contact with the diaphragm (4), the lining being characterized in that the rim of the insertion opening (122, 222, 322) for each first jaw assumes the shape of the rod section (11). The garment of claim 15, further comprising on each stiffening member (2) at least one second jaw (130, 230) inserted on the ribbed section (11) of the stiffening member (2), the first and second jaw (120, 130; 220, 230) are blocked relative to each other in a locking position where the diaphragm (4) is squeezed between the jaws around its spike apertures (4a). A method of cladding a wall (F) comprising: a) fastening to the wall of stiffening elements (2), each comprising a rod (10) comprising an end (10a) which is free of spacing, and at least one ribbed section (11) provided at the periphery with a plurality of primary ribs (12); b) splicing or insertion between the stiffening elements (2) of at least one layer of thermal and / or acoustic insulation (3); in this order or in an opposite order, spitting a diaphragm (4) onto the stiffening elements (2), inserting a first jaw (120, 220, 320) onto the ribbed rod section (11) of each stiffening element (2), the rim the insertion opening (121, 221, 321) of the first jaw (120, 220, 320) assumes the shape of the rod section (11) and locking of the first jaw (120, 220, 320) in contact with the diaphragm (4), d ) inserting on each stiffening element (2) an element (5) for retaining a cladding structure (6), and e) contacting mounting a cladding structure (6) with at least one retaining member (5). The cladding method of claim 17, further comprising, in step c), insertion of a second jaw (130, 230) onto the ribbed bar section (11) of each stiffening member (2), the locking of the first jaw (120, 220) against the diaphragm (4) comprises the blocking of the two jaws relative to each other in a locking position, the diaphragm (4) being squeezed between the jaws about its aperture opening (4a).