FR3103204A1 - Bracing accessory for lining a wall - Google Patents

Abstract

The present invention relates to a spacer accessory (10) for fixing a doubling frame (F) on a structure to be doubled (C), said device comprising a main portion (11) extending in a so-called axial direction. (X1) one end of which is provided with means for its attachment (14) to the structure to be doubled (C) and the other end of which is provided with means (13) for attaching at least one membrane (M), characterized in that said attachment means (13) comprise a first jaw (15) surrounding the main portion and a second jaw (17) carried by the first jaw, coupling means (16) allowing the axial clamping of said jaws (15, 17) with each other, these two jaws being arranged to clamp between them, after assembly, the membrane, said membrane remaining intact after assembly. Figure 7

Description

Spacer accessory for lining a wall

The present invention generally relates to the lining of walls for insulation or aesthetic purposes. It relates more particularly to a bracing accessory placed transversely between the wall to be lined and a lining partition to keep the latter at a distance from the wall to be lined.

Technology background

The lining of a wall such as a wall, a ceiling or a roof of a building is frequently practiced, in renovation or in new construction, to obtain or improve the acoustic or thermal insulation of the building or of a specific room. . For this purpose, a lining partition (against partition or false ceiling) is attached to a lining frame which is itself fixed to structural elements of the wall to be lined, at a given distance from it. A thermal and/or acoustic insulation lining (often called an insulation complex) is inserted between the wall to be lined and the lining partition.

The insulation packing typically includes, on the one hand, one or more layers of fibrous insulating material such as mineral wool and, on the other hand, at least one wind or vapor barrier membrane. This membrane is most often interposed between the layer of fibrous material and the lining partition, typically attached to the partition, optionally interposed between two layers of fibrous material.

The fixing of the lining framework to the structural elements of the wall to be lined is carried out by means of regularly spaced bracing accessories. Each bracing accessory comprises a main body in the form of a rod extending transversely to the wall to be lined and to the lining partition, one end of which is provided with means for fixing it cantilevered to a structural element. of the wall to be lined and the other end of which is provided with means for its assembly with the dubbing frame. Such a spacer accessory is for example known from document WO2006/061538.

During installation, the insulation packing is generally hooked onto the rods of the spacer accessories, which causes multiple piercing of the layers of fibrous material and, where applicable, of the membrane. This piercing is particularly detrimental with regard to the membranes, because their sealing function, permanent or selective, is then altered. The piercing of the membrane can also constitute a tear initiator likely to spread if a tension is exerted on the membrane.

To partially avoid this problem, it is known to arrange the membrane on the inside of the lining frame, between the latter and the lining partition. The membrane is thus not crossed by the spacer accessory and can thus remain intact, at least initially.

However, this solution is only partial. Fixing the lining partition to the lining framework involves piercing the membrane with the fixing elements (staples, screws, nails, etc.), which is detrimental, although to a lesser extent, to the watertightness. of the diaphragm.

The positioning of the membrane in front of the lining frame raises another technical problem: it leaves no interstitial space between the membrane and the lining partition. However, it often proves necessary to insert, behind the dubbing partition, various cables or pipes, in particular for the water, ventilation, electricity or communication network. It is then difficult to envisage placing the cables and wiring accessories between the membrane and the lining partition. The cables could in fact only be suitably fixed by means of openings made in the membrane. There is also a risk of the membrane being damaged or distended by cables or sheathing, fastening or connection accessories.

These cables can certainly be arranged behind the membrane. But it is then no longer possible to access it for maintenance or upgrading of the wiring installation without removing the membrane or making an opening in it. In addition, the cabling operations may, for logistical reasons or changes in needs or technologies, take place after the lining of the wall, which also requires the removal or opening of the membrane by workers who do not are generally not specialized in wall lining and insulation.

An object of the present invention is to offer a technical solution allowing the installation of a membrane without breaking its integrity and its sealing performance.

To this end, according to the invention, an accessory or bracing device is proposed for fixing a lining frame to a double structure, said device comprising a main portion extending in a so-called axial direction, one end of which is provided means for its attachment to the structure to be lined and the other end of which is provided with means for attaching at least one membrane,

characterized in that said attachment means comprise a first jaw surrounding the main portion and a second jaw carried by the first jaw, coupling means allow the axial clamping of said jaws with each other, these two jaws being arranged to pinch between them, after assembly, the membrane, said membrane remaining intact after assembly.

The advantage of the spacer accessory according to the invention is that it allows the jaw to be held in place without piercing it. The jaws provide mechanical support for the membrane, which makes it possible in particular to avoid the onset of tearing of said membrane.

According to one example, the first jaw comprises a circular bottom, having an upper face and a lower face, at the periphery of which a side wall extends from the upper face, in a direction parallel to the central axis of the bottom, said side wall comprising an inner face and an outer face.

According to one example, the second jaw comprises a circular side wall, said side wall comprising an inner face and an outer face.

According to one example, the coupling means comprise a first thread arranged on the first jaw and a second thread arranged on the second jaw, the first thread and the second thread cooperating with each other to allow the axial tightening of the jaws one against the other.

According to one example, the coupling means comprise at least two projecting lines on the first jaw and at least two projecting lines arranged on the second jaw, the projecting lines of the first jaw and of the second jaw being arranged to form a quarter system of turn.

In one example, the at least two salient lines on the first jaw are spaced from each other and wherein the at least two salient lines on the second jaw are spaced from each other, the salient lines of the second jaw being able to fit into the space between the protruding lines of the first jaw and vice versa.

According to one example, the at least two projecting lines on the first jaw and the at least two projecting lines on the second jaw are arranged to be inclined and allow tightening.

According to one example, the coupling means comprise at least one cavity arranged on one face of the side wall of a jaw, each cavity being formed by a clearance parallel to the central axis of the jaw and opening out with respect to the rim of the side wall, and, intersecting with said recess and opposite the edge of the side wall, a blind groove, and at least one lug arranged to fit into said cavity.

According to one example, the second jaw carries a connecting piece

According to one example, the assembly means comprising a circular groove arranged on the underside of the bottom of the second jaw

According to one example, the assembly means comprise at least one tab, preferably two parallel tabs, extending in a direction parallel to the side wall of the second jaw.

According to one example, the central portion is a rod.

According to one example, the rod comprises a first part and a second part mounted to slide relative to each other, said rod comprising means for sliding the parts of the rod and locking means.

The present invention further relates to a device for lining a wall, comprising

- at least one bracing device according to the invention,

- a wind barrier, vapor barrier or vapor retarder membrane to be attached to the bracing device,

characterized in that said membrane is clamped between the first jaw and the second jaw of said bracing device.

Description of figures

Other features and advantages will emerge clearly from the description given below, by way of indication and in no way limiting, with reference to the appended drawings, in which:

- Figure 1 is a perspective view, cut away, of the interior of the attic of a building whose roof is insulated by means of a dubbing device according to the invention;

- Figures 2a and 2b are simplified schematic views of a bracing accessory;

- Figure 3 is a simplified schematic view of a length-adjustable bracing accessory;

- Figures 4a to 4d are schematic views of one embodiment of an adjustable bracing accessory;

- Figures 5 and 6 are schematic views of another embodiment of an adjustable bracing accessory;

- Figures 7, 8a and 8b are schematic views of a bracing accessory according to the invention;

- Figure 9 is a schematic view of a first embodiment of the coupling of the jaws of a bracing accessory according to the invention;

- Figures 10a, 10b and 10c are schematic views of a second embodiment of the coupling of the jaws of a bracing accessory according to the invention;

- Figures 11a and 11b are schematic views of a third embodiment of the coupling of the jaws of a bracing accessory according to the invention;

- Figures 12 and 13 are schematic views of the coupled jaws of a bracing accessory according to the invention;

- Figure 14 is a schematic view of a variant of a bracing accessory;

- Figures 15 to 17 are schematic views of variants of the bracing accessory according to the invention;

detailed description

In the non-limiting example shown in Figure 1, it is more specifically to insulate the attic of a building and, for this purpose, to double an exterior wall 1 and a roof 2 of this building.

The roof 2 comprises here, conventionally, a wooden frame made up of purlins 3 carrying rafters 4 on which cover elements 5 rest.

A dubbing device, in accordance with the invention, is attached to the roof structure and to the exterior wall. This dubbing device comprises a dubbing frame, composed on the one hand of horizontal slats 6 for dubbing the roof and on the other hand of vertical slats 7 for dubbing mur1. These slats are commonly called furs.

The lining slats 6 and 7 are respectively fixed to structural elements of the roof 2 and of the wall 1 to be lined by means of a plurality of bracing accessories 10.

Each bracing accessory 10, visible in FIGS. 2a and 2b, comprises a central portion 11, extending along an axis X1, being presented, in a first embodiment, in the form of a rod 12 provided with means of its fixing 14 cantilevered to the roof 2 or to the wall 1 and whose other end, called front, is provided with a connecting piece provided with means for its assembly 19 with the slat 6, 7 whose l accessory provides support. On assembly, the rod 12 is arranged to extend in a direction substantially perpendicular to the roof 2 or to the wall 1. Panels of insulating materials are arranged between the roof 2 or the wall 1 and the slats 6, 7 used to carry a lining wall.

The bracing accessories 10 which are used to double the roof are fixed to the rafters4. They comprise, for this purpose, each, as fixing means 14, a plate or longitudinal fixing base 141 screwed on the side of the rafter 4 concerned. The bracing accessories 10 which are fixed to the wall 1 each comprise for this purpose, as fixing means 14, a transverse fixing plate 142 screwed to the wall 1.

The plates 141, 142 can be made of material with the rod 12 or be parts added to the rod 12 by various means.

According to an advantageous feature visible in Figure 3, the rod 12 is designed to allow adjustment of its length. The rod 12 comprises a first part 121 and a second part 123. The fixing means 14 of the rod are arranged on the first part 121 while the assembly means 19 with the slat 6, 7 whose accessory ensures the maintenance are arranged on the second part 123 or vice versa. The first part 121 and the second part 123 are mounted to slide relative to each other. Means for sliding the parts of the rod 125 and locking means 127 are provided. The means for sliding the parts of the upper 125 are used to allow the length of the upper to be adjusted, while the locking means are used to lock the position of the first part 121 with respect to the second part 123.

According to a first embodiment visible in Figures 4a to 4d, the means for sliding the parts of the rod 125 are in the form of a rail system. For this, the means for the sliding 125 of the parts of the rod comprise a rail 1250 arranged on one of the two parts 121, 123, for example the first part 121. This rail 1250 consists of a groove 1251, crossing or not, in which a guide means 1252 arranged on the other part, here the second part 123, can move. This guide means 1252 comprises a pin 1253 or guide head in cylindrical form. This pin 1253 is sized to fit into the groove 1251 forming the rail 1250.

Ideally, the first part 121 and the second part 123 have a complementary shape. For example, to have a cylindrical rod, then the first part 121 and the second part 123 each have a cross-sectional shape or section of a semicircle, the rail 1250 and the guide means 1252 each being arranged on the flat face of the half -circle of each part.

In this first embodiment, the locking means 127 comprise, on the first part 121 or the second part 123, a clamp 1270 comprising an elastic arm 1271. The arm 1271 has a shape such that it defines, with the part of the rod on which it is fixed, a space having the shape of the part to be locked. For example, the part to be locked has a semi-circular section, then the arm 1271 forming the clamp 1270 has a geometry such that it defines a semi-circular space in which the part to be locked can be inserted. This arm 1271 is thus designed to generate pinching and allow locking.

The use of this first embodiment consists in fixing the spacer device 10 via the fixing means 14 as shown in Figure 4a. Then, the second step consists in unlocking the position of the second part 123 with respect to the first part 121 as shown in FIG. 4b. For this, the second part 123 is manipulated to be pivoted relative to the axis of the pin. In a third step, the operator manipulates the second part 123 by sliding the pin 1254 in the rail 1250. Once the second part 123 has been placed at the desired distance, the operator manipulates it so that this part can enter the space formed by the arm 1271. This locks the position of the second part 123 as shown in Figure 4c. All that remains is to fix the membrane M as shown in figure 4d by maintaining it.

In a second embodiment, a stepwise adjustment mechanism of the length (L) of the rod by relative sliding of the first part 121 and of the second part 123 is used to allow the first part 121 and the second part 123 to slide relative to each other in the axial direction. This sliding is permitted when the first part 121 and the second part 123 are in a first angular position relative to each other. The adjustment mechanism 125 is such that the first part 121 and the second part 123 are adapted to pivot, towards a second relative angular position in which they are locked in axial translation, only in a plurality of staggered adjustment positions in the axial direction in a coarse pitch P of between 0.1 and 5 cm, preferably between 0.5 and 2 cm, even more preferably between 0.8 and 1.3 cm. Means for locking the first part 121 and the second part 123 in rotation in the second angular position are therefore present.

As such, a variant, visible in Figure 5, consists in the first part 121 comprising an adjustment part adapted to receive the second part 123 and provided with a plurality of notches 121a spaced axially from the coarse pitch P. The second part 123 is a rod which has lugs 123a provided at its periphery and adapted to cooperate with said notches 121a. The first part 121 has an opening 121b for inserting the second part 123. This opening 121b comprises for this a central part of circular internal section, of diameter slightly greater than that of the rod, and two diametrically opposed housings opening on said part central and extending axially, intended to receive the lugs 123a of the second part 123 in a first angular position. The means 127 for locking the second part 123 and the first part 121 in rotation, in the second angular position, are provided and comprise clipping means 127a comprising a clipping tongue 127b delimiting a notch 121a adapted to move by cooperating with a pin 123a of the second part 123 during a rotation from the first to the second angular position and to prevent the return of the pin 123a, once the second angular position has been reached. The passage from the second angular position to the first angular position is done by exerting, via the second part 123, a pressure on the clipping tab 127b. The clipping tongue 127b then deforms allowing the release of the lug 123a and the rotation of the second part 123.

In another variant visible in Figure 6, the second part 123 is here provided, at its front end, with a fine adjustment section provided at its periphery with a plurality of primary ribs 123a ', regularly spaced from each other , parallel to each other, and orthogonal to the axial direction X1.

In the particular example shown, the second part 123 (with its ribs) is truncated over two truncated primary angular portions 123b', diametrically opposed, each truncated primary angular portion 123b' extending over an angle strictly greater than 90 degrees, by example but not limited to between 120 and 150 degrees. Between these truncated primary portions 123b' are defined non-truncated primary portions of the stem.

The first part 121 is for its part provided with a plurality of secondary ribs 121a' protruding into its fitting opening 121c' and adapted to cooperate with the primary ribs 123a' of the second part 123 for the locking in translation of the second part 123 with respect to the first part 121.

According to one example, the secondary ribs 121a' are truncated on two angular sectors 121c' with an angle greater than the angle of the non-truncated primary portions of the second part, and diametrically opposed.

The second part 123 is thus free to slide, in the axial direction X1, when its portions of secondary ribs 123a' are opposite the truncated portions 123b' of the first part and when its truncated portions 121c' are opposite the portions not -truncated 123a'. Conversely, the second part 123 is blocked in translation in the axial direction X1 along the first part when the portions of secondary ribs 121a' are located opposite the portions of primary ribs 123a'.

Of course, other forms of execution are possible. For example, the first part 121 is in the form of a square or circular section tube, truncated at the periphery so that the second part 123 can be inserted. Thus, in the case of a square section, the first part 121 in the form of a truncated tube is in the form of a U-shaped profile. The second part 123 is then arranged to be inserted into the tube forming the first part. For locking the position, the locking means are here in the form of protuberances and through or blind holes. These growths extend radially and are arranged to fit into holes. The protrusions can be arranged on the first part 121 and the holes on the second part 123 or vice versa. These protrusions can have various shapes such as for example cylindrical or blade-shaped. The holes then have a shape which is the negative of that of the growths. This allows a perfect interlocking and therefore a good maintenance of the two parts.

According to another embodiment, the first part 121 is in the form of a tubular part in which the second part 123 slides. The second part includes a series of openings. The first part 121 includes at least one opening. This opening of the first part 121 is identical to the openings of the second part 123. Thus, the two parts 121, 123 are arranged so that by sliding one inside the other, the opening of the first part 121 is found opposite an opening of the series of the second part 123. This facing of the openings allows a tenon to be inserted into the two openings facing each other to lock the position of the second part 123 with respect to the first part 121. This tenon is placed on an elastic blade arranged on the first part. This allows the user to act on the elastic blade to remove the tenon from the openings, adjust the length by aligning an opening of the second part with an opening of the first part and releasing the elastic blade so that the tenon locks the set position.

Each bracing accessory thus has an overall length (corresponding to the distance between its end points along its longitudinal direction) typically between 200 and 350 millimeters when it is provided with all its fixing plates.

The rod 12 comprises, at one end, opposite the fixing means 14, means 13 for attaching a membrane. These attachment means 13 comprise a first jaw 15 and a second membrane 17. The first jaw 15 cooperates with the second jaw 17 via coupling means 16 as shown in Figure 7. These coupling means 16 are arranged on the first jaw 15 and the second jaw 17. Cleverly according to the invention, the coupling means 16 are arranged to allow the axial clamping of the second jaw 17 with the first jaw 15 while allowing pinching between them, after coupling, of the membrane M. These jaws 15, 17 are then designed to allow the membrane M to be inserted between said jaws 15, 17. Thus, the second jaw 17 is only carried by the first jaw 15.

Even more cleverly, this pinching of the membrane M by the first jaw 15 and the second jaw 17 makes it possible to avoid skewering, piercing said membrane at the rod 12 and thus not weakening it or creating localized losses in performance. This makes it possible to have a membrane which remains intact after its installation and the assembly of the jaws 15, 17.

For this, the first jaw 15 comprises a circular bottom 15a at the periphery of which a side wall, circular 15b extends. This side wall 15b extends in a direction parallel to the central axis of the bottom. The bottom 15a can be flat or conical and comprises an upper face 151a and a lower face 152a. The top face is the face from which the side wall 15b extends. The lower face is the face by which the first jaw 15 is secured to the rod 12. The side wall 15b comprises an inner face 151b and an outer face 152b.

In a first exemplary embodiment visible in Figure 8a, the first jaw 15 is made of material with said rod 12, that is to say that the rod and the first jaw 15 are in one piece.

In a second exemplary embodiment visible in Figure 8b, the first jaw is an added piece, that is to say which is fixed on said rod. To do this, the bottom 15a comprises, preferably in its center, and on the lower face 152a, a through or blind hole through which said first jaw 15 is fixed to the rod 12. Securing means are provided for fixing the first jaw 15 to the rod. These securing means allow the clipping or the screwing or the insertion by force of the first jaw 15 with the rod.

Optionally, the bottom 15a of the first jaw 15 is replaced but at least two arms. In a first example, the two arms are made of material with the rod 12. In a second example, the two arms are connected to a fixing barrel or tube allowing the clipping or the screwing or the insertion by force of the first jaw 15 with stem.

The second jaw 17 comprises a circular bottom 17a at the periphery of which a circular side wall 17b extends. The bottom 17a can be flat or conical and comprises an upper face 171a and a lower face 172a. Top face 171a is the face from which side wall 17b extends. The side wall 17b includes an inner face 171b and an outer face 172b.

Optionally, the bottom 17a of the second jaw 17 is partially open or removed, only the wall 17b remains.

The coupling means 16 allowing the axial clamping of the second jaw 17 with the first jaw 15 are arranged on the side wall 15b, 17b of the jaws 15, 17.

According to a first embodiment visible in Figure 9, the coupling means 16 comprise a first thread 160a arranged on the outer face 152b of the side wall 15b of the first jaw 15 and a second thread 160b arranged on the inner face 171b of the side wall 17b of the second jaw. The first thread 160a and the second thread 160b are arranged to cooperate with each other, thus allowing the clamping of the second jaw 17 with the first jaw 15.

According to a second embodiment visible in Figures 10a and 10b, the coupling means 16 are in the form of a so-called quarter-turn system. For this, the outer face 152b of the side wall 15b of the first jaw 15 comprises at least one projecting line 161a. Preferably, the outer face 152b of the side wall 15b of the first jaw 15 comprises at least two projecting lines 161a. These salient lines 161a are regularly distributed so that, in the case of two salient lines 161a, they are diametrically opposed. These projecting lines 161a extend along the circular wall 15b in a plane orthogonal to the central axis of the first jaw 15. The inner face 171b of the side wall 17b of the second jaw 17 comprises projecting lines 161b whose the number is equal to the number of projecting lines 161a arranged on the first jaw 15. These projecting lines 161a, 161b are also regularly distributed so that spaces 161c, 161d are present. These projecting lines 161a, 161b extend along the circular wall in a plane orthogonal to the central axis of the second jaw 17.

The projecting lines 161b of the second jaw 17 and the projecting lines 161a of the first jaw 15 are straight and have a length such that the projecting lines 161b of the second jaw 17 can fit into the space 161c between two projecting lines of the first jaw 15.

The assembly of the second jaw 17 on the first jaw 15 then consists in placing the second jaw 17 so that its projecting lines 161b are opposite the spaces 161c present between two projecting lines 161a of the first jaw 15. A rotation of the second jaw 17 makes it possible to place the projecting lines 161b of the second jaw 17 under the projecting lines 161a of the first jaw 15. This cooperation of the projecting lines 161b of the second jaw 17 and the projecting lines 161a of the first jaw 15 makes it possible to insert the membrane M between the two jaws without piercing it and more particularly between the projecting lines. These are sized to leave the membrane intact.

The rotation allowing the locking of the two jaws is not necessarily a quarter turn or 90°. The rotation must be sufficient to allow the projecting lines 161b of the second jaw 1 to pass under the projecting lines 161a of the first jaw 15.

In the case of a single protruding line 161a; this is such that it extends angularly at an angle greater than 180 degrees. Preferably, the second jaw 17 has at least projecting lines 161b so that these projecting lines 161b are retained by said projecting line 161a.

Depending on the desired direction of rotation, the projecting lines 161a of the first jaw 15 optionally include a stop blocking the rotation of the second jaw 17.

In a variant, the projecting lines 161a, 161b are arranged to be inclined with respect to the plane orthogonal to the central axis of the jaws 15, 17. This inclination is such that it allows clamping of the jaws 15, 17 one on the other as seen in Figure 10c.

According to a third embodiment visible in Figures 11a and 11b, the coupling means 16 are in the form of a bayonet system. Such a bayonet system has a pair of cavities 162 arranged on a jaw. Each cavity 162 is formed by a clearance 162a parallel to the central axis of the jaw and emerging with respect to the edge of the side wall 15b, and, secant with said clearance and opposite the edge of the side wall, a groove blind 162b. This groove 162b is used for bayonet immobilization. The other jaw then comprises lugs 163, the number of which is equal to the number of cavities. Each lug is sized to fit into said cavity 162. The assembly of the two jaws 15, 17 consists of placing each lug in the clearance of a cavity 162 to then move said jaw in the axial direction of said jaw. When the lugs are opposite the blind grooves 162b, a rotational movement is operated to lock the jaws 15, 17 to each other.

If the cavity or cavities 162 are arranged on the outer face 152b of the first jaw 15 then the lugs are arranged on the inner face 171b of the second jaw 17 or vice versa. Similarly, the cavities can be arranged on the second jaw 17 and the lugs on the first jaw 15.

The installation of the membrane M therefore consists, after installation of the bracing device 10 and the adjustment of its length, in providing said membrane. Membrane M is advantageously an airtight and/or water vapor management membrane, preferably a membrane providing both of these functions. The water vapor management membrane is advantageously a vapor barrier membrane or a hygroregulating membrane, that is to say whose water vapor permeance varies according to the ambient relative humidity. The membrane M is made up of a sheet or a plurality of sheets assembled together. This membrane M is then placed against the first jaw 15. The operator then takes the second jaw 17 and places it, through the membrane, opposite the first jaw 15. The second jaw 17 is manipulated so that the coupling means 16 allowing the axial clamping of the second jaw 17 with the first jaw 15 engage. It is therefore understood that the thread or the protruding lines of the second jaw engage with the thread or the protruding lines of the first jaw. Cleverly, the thread or the projecting lines of the first jaw 15 and of the second jaw 17 will be dimensioned so that the membrane M is inserted therein as visible in FIGS. 12 and 13. Thus, in the case of a thread, the dimensions of the screw pitch and of the threads will be such that the membrane M is inserted between the thread of the first jaw 15 and the thread of the second jaw 17 without risk of being torn.

Thus, the bracing device 10 according to the invention makes it possible to avoid any break in the integrity of the membrane when it is put in place.

Of course, the embodiments described for the coupling means 16 are not limiting and it is possible to have the coupling means 16 arranged on the inner face of the first jaw 15 and on the outer face of the second jaw 17 .

In an alternative embodiment, the first jaw 15 is provided with retention means 18. These retention means 18 are used to hold the membrane at the level of the first jaw 15 without assistance from the operator so that the latter can manipulate the second jaw 17. These retention means 18 comprise a plurality of flexible, elastic strips 181 arranged so as to leave an empty central space, each strip 181 being individually deformable as shown in FIG. 14. This arrangement makes it possible to insert said membrane into the empty central space. The flexible slats tend to want to return to their initial position. The membrane M is therefore held between the different flexible strips without being torn.

The connecting piece 20 is provided with assembly means 19 to the frame to be doubled. This connecting piece 20 is one comprising a rear face able to be fixed on the second jaw 17 and a front face, preferably hemispherical.

In a first embodiment visible in Figure 15, these assembly means 19 comprise two notches or grooves 19a, parallel, arranged on the front face of the connecting piece 20. These notches 19a are adapted to cooperate by clipping with a slat 6, 7. Each slat 6, 7 is here made in the form of a metal section, or fur, with a C section having re-entrant edges, pointing towards each other to engage in the manner of a clip with notches.

In an alternative to this first form, the assembly means 19 comprise a single notch or circular groove. This circular notch allows the angular position of the slat to be modified as required.

According to a second embodiment visible in Figure 16, the assembly means 19 comprise at least one tab 19b, preferably two parallel tabs 19b. These legs extend in a direction parallel to the side wall of the second jaw. These lugs 19b are arranged to have a shape and dimensions allowing said lugs to insert it into the space between the flanges of the C-section profile. Preferably, the flanges are re-entrant, pointing towards each other. In this case, the lugs 19b are arranged to have a free end or leading edge facilitating insertion into the space between the edges of the C-section profile. For this, the free end has a shape having a tapering end such as a rounded/circular shape or bevelled shape.

This thinned shape advantageously makes it possible to press on the edges and spread them apart in order to facilitate the insertion of the tab. Once inserted into the rim, the lug(s) are held in place by the edges of the profile which tend to return to their initial position and therefore operate a tightening.

Cleverly, the second jaw 17 acts as a connecting piece 20. In this configuration, the lower face 172a of the second jaw 17 is the face on which the assembly means 19 are arranged as shown in Figure 17.

In a variant of the different embodiments, the coupling means 16 of the second jaw on the first jaw are designed so that the amplitude of the rotation to be applied to the second jaw for its assembly with the first jaw is limited. This limitation is such that this amplitude of the rotation is a maximum of 90°. Preferably, this amplitude is at most 45°. This limitation of the rotation of the second jaw 17 with respect to the first jaw 15 for their assembly makes it possible to limit the stresses applied to the membrane M and thus to limit the wrinkling of this membrane. Such a crumpling is representative of an alteration. The limitation of the rotation of the second jaw with respect to the first jaw for their assembly thus makes it possible to limit this alteration and therefore to reduce the risks of perforations of the membrane.

Finally, means may also be provided for ensuring a seal between at least one of said jaws of said spacer accessory and the stem of the latter.

In the lining system according to the invention, the panels of insulating materials are at least partially supported by the spacer devices according to the invention. More particularly, the first jaw 15 and its lower face 152a interact with the insulating panel or panels. Indeed, in the case of a wall or a roof, the insulating panel is placed so as to rest on the lower face 152a of the first jaw. This is all the more true in the case of a roof where the insulating panels are retained only by the lower face 152a of the first jaw of each bracing device.

To improve this hold, said lower face 152a of the first jaw optionally comprises teeth or barbs extending orthogonally to said lower surface. These teeth or pins are used to fit into the insulation panel to improve its retention.

Of course, the present invention is not limited to the example illustrated but is susceptible to various variants and modifications which will become apparent to those skilled in the art.

The central portion 11 can thus be in the form of a plate or a tube or a profile.

Claims (14)

Spacer device (10) for fixing a lining framework (F) to a structure to be lined (C), said device comprising a main portion (11) extending in a so-called axial direction (X1) one end of which is provided with means (14) for fixing it to the structure to be lined (C) and the other end of which is provided with means (13) for attaching at least one membrane (M),
characterized in that said attachment means (13) comprise a first jaw (15) surrounding the main portion and a second jaw (17) carried by the first jaw, coupling means (16) allowing the axial clamping of said jaws (15, 17) with each other, these two jaws being arranged to pinch between them, after assembly, the membrane, said membrane remaining intact after assembly. Bracing device according to Claim 1, in which the first jaw (15) comprises a circular bottom (15a), having an upper face (151a) and a lower face (152a), at the periphery of which a side wall (15b) is extends from the upper face, in a direction parallel to the central axis of the bottom (15a), said side wall comprising an inner face (151b) and an outer face (152b). A bracing device according to claim 1, wherein the second jaw (17) comprises a circular side wall (17b), said side wall comprising an inner face (171b) and an outer face (172b). Bracing device according to one of Claims 1 to 3, in which the coupling means (16) comprise a first thread (160a) arranged on the first jaw and a second thread (160b) arranged on the second jaw, the first thread and the second thread cooperating with each other to allow the axial clamping of the jaws (15, 17) against each other. Bracing device according to one of Claims 1 to 3, in which the coupling means (16) comprise at least two projecting lines on the first jaw and at least two projecting lines arranged on the second jaw, the projecting lines of the first jaw and the second jaw being arranged to form a so-called quarter-turn system. A bracing device according to claim 5, wherein the at least two salient lines on the first jaw are spaced from each other and wherein the at least two salient lines on the second jaw are spaced from each other. the other, the protruding lines of the second jaw being able to fit into the space between the protruding lines of the first jaw and vice versa. A bracing device according to claim 5, wherein the at least two salient lines on the first jaw and at least two salient lines on the second jaw are arranged to be angled and allow clamping. Bracing device according to one of Claims 1 to 3, in which the coupling means (16) comprise at least one cavity arranged on one face of the side wall of a jaw, each cavity being formed by a parallel recess at the central axis of the jaw and emerging with respect to the edge of the side wall, and, intersecting with said recess and opposite the edge of the side wall, a blind groove, and at least one lug arranged to insert into said cavity. Bracing device according to one of the preceding claims, in which the second jaw carries a connecting piece (20) provided with means (19) for assembling the framework to be doubled. Bracing device according to claim 9, in which the assembly means (19) comprises a circular groove arranged on the underside of the bottom of the second jaw. Bracing device according to Claim 9, in which the assembly means (19) comprise at least one leg, preferably two parallel legs, extending in a direction parallel to the side wall of the second jaw. Bracing device according to one of the preceding claims, in which the central portion is a rod. Bracing device according to the preceding claim, in which the rod comprises a first part (121) and a second part (123) mounted to slide relative to each other, said rod comprising means for sliding (125 ) parts of the rod and the locking means (127). Device for lining a wall, comprising
- at least one bracing device (10) according to one of the preceding claims,
- a wind barrier, vapor barrier or vapor retarder membrane (M) to be attached to the bracing device (10),
characterized in that said membrane is pinched between the first jaw and the second jaw of said bracing device.