Holding device for heat transfer fluid circulation conduit

Abstract

The invention relates to a holding device (1) intended to hold a conduit for circulating a heat transfer fluid of a thermoregulation system, comprising a support (2) and a fixing assembly (3) connected to the support (2) and intended to produce a self-gripping connection with a fixing means provided on the conduit, so as to allow removable assembly of the conduit on the holding device (1). The support (2) comprises a layer of polymer foam having a density greater than 30 kg / m3 and less than 300 kg / m3, the holding device (1) having a thickness greater than 0.5 mm and less than 5 mm. Figure for abstract: Fig. 1.

Description

Title of the invention: Holding device for heat transfer fluid circulation conduit Technical field

[0001] The production of thermoregulation devices integrated into the ground, for example for underfloor heating, requires the positioning of fluid circulation conduits prior to the production of a screed in which these conduits will be integrated. Prior art

[0002] The production of thermoregulation devices integrated into the ground, for example for underfloor heating, requires the positioning of fluid circulation conduits prior to the production of a screed in which these conduits will be integrated.

[0003] Generally, a holding device (or holding surface) is laid on the ground and then the conduits are positioned on the holding device which ensures sufficient holding of the conduits to guarantee their correct positioning before the screed is made by pouring a liquid screed, for example.

[0004] The holding device comprises a support and a fixing assembly connected to the support. The fixing assembly comprises retaining elements such as hook-and-loop type loops intended to provide a self-gripping connection with a fixing means surrounding the conduit, so as to allow removable assembly of the conduit on the holding device.

[0005] For example, document EP3119231 is known, disclosing retaining plates which comprise a support and a fluffy structured surface connected to the support and intended to hold conduits comprising hook-shaped retaining elements, capable of clinging to the structured surface.

[0006] However, this type of plate-shaped holding device is difficult to implement because it is necessary to lay a multitude of plates on the ground and then connect them with adhesive strips to hold them together and to create a seal against the liquid screed that will be poured. In addition, the plates generally have a shape memory, complicating their installation. Some types of plate also have a significant thickness, between 10 mm and 80 mm, complicating their transport and / or installation.

[0007] Particularly in the context of a renovation of an existing building, this thickness is also penalizing because it results in a reduction in the ceiling height. once the screed has been poured onto the holding device and the conduits or, in certain cases, major work, for example planing the existing concrete screed. Description of the invention

[0008] The present invention thus aims to at least partially resolve these problems by proposing a holding device intended to hold a conduit for circulating a heat transfer fluid having a reduced bulk for its transport and storage while being adapted to remain in position on the ground during a construction site while awaiting the formation (pouring) of a screed.

[0009] The present invention thus relates to a holding device intended to hold a conduit, in particular a conduit for circulating a heat transfer fluid of a thermoregulation system, comprising a support and a fixing assembly connected to the support and intended to produce a self-gripping connection with a fixing means provided on the conduit, so as to allow removable assembly of the conduit on the holding device.

[0010] According to the invention, the support comprises a layer of polymer foam having a density greater than 30 kg / m3, in particular greater than 50 kg / m3, and less than 300 kg / m3. The holding device has a thickness greater than 0.5 mm and less than 5 mm.

[0011] The invention thus provides a holding device intended to hold a conduit for circulating a heat transfer fluid having a reduced bulk for its transport and storage while being adapted to remain in position on the ground during a construction site while awaiting the formation (pouring) of a screed.

[0012] The holding device is lighter than those of the prior art and thinner. It is therefore less bulky and can thus be easily transported, reducing transport costs and reducing the ecological impact.

[0013] The holding device is particularly suitable for being packaged in a roll, facilitating its storage, transport and application to the ground. Its application is also facilitated by its lightness and small size compared to the holding devices of the prior art, which are in the form of thick and rigid plates.

[0014] Additionally, the roll-shaped holding device has the advantage, compared to products in the form of plates, of limiting the number of junctions (or connections) to be made between holding devices to ensure sealing against the liquid screed. Indeed, for products in the form of plates, longitudinal and transverse junctions are necessary whereas for the roll-shaped holding device according to the invention, the quantity of junctions to be made is advantageously reduced, in certain cases, divided by two, only the longitudinal junctions being necessary.

[0015] The main advantage of the holding device is that it can be unrolled on the ground without lifting or warping.

[0016] According to one variant, the foam layer has a density greater than 70 kg / m3, in particular greater than 100 kg / m3. According to one variant, the foam layer has a density less than 250 kg / m3, in particular less than 200 kg / m3. According to one variant, the foam layer has a density greater than 100 kg / m3 and less than 200 kg / m3. According to one variant, the foam layer has a density equal to 150 kg / m3 + / - 10%. These density values ​​make it possible to obtain a holding device without lifting once it is placed on the ground or an even lower risk of lifting than with a foam layer with a density of between 30 kg / m3 and 300 kg / m3, in particular between 50 kg / m3 and 300 kg / m3.

[0017] According to a variant, the holding device has a thickness of less than 3 mm, in particular less than 2.5 mm and preferably less than 2 mm.

[0018] According to one variant, the thickness of the support is greater than 0.2 mm and / or less than 3 mm. These thickness ranges are optimal for providing a space-saving and easy-to-install holding device.

[0019] According to one variant, the foam layer comprises a polyolefin foam, in particular a polyethylene foam and / or a polypropylene foam. The polyolefin foam may be a crosslinked foam based on polyethylene and / or polypropylene or an extruded foam based on polyethylene and / or polypropylene.

[0020] According to a variant, the fixing assembly is directly fixed to the support by a first layer of glue. This makes it possible to reduce the thickness of the holding device.

[0021] According to one variant, the holding device comprises a film positioned between the support and the fixing assembly. The film comprises an upper face fixed to the lower face of the fixing assembly by a first layer of glue and a lower face connected to the upper face of the support by a second layer of glue. The film increases the rigidity of the holding device and reduces its shape memory power, in particular when it is placed on the ground.

[0022] The film may be a plastic film and / or a metallized film, such as an aluminized film, for example. The film allows the fixing assembly to be easier to transport during its manufacture and to reduce the risk of separation between the fixing assembly and the support by forming an intermediate layer. Advantageously, the film makes it possible to easily vary the properties of the fixing assembly and the support, such as for example their thermal emissivity, the latter being able to be increased or reduced.

[0023] The fixing assembly may comprise hooks and / or loops. Preferably, the fixing assembly comprises loops which are more resistant to deformations likely to be made by the installer when installing the ground support device and / or when installing the conduit, in particular due to the pressure exerted by the installer's shoes for applications on horizontal walls such as floors.

[0024] The loops of the fixing assembly may be formed from a knitted fabric and / or a non-woven fabric with loops and / or a non-woven fabric whose threads are knitted / sewn through the non-woven fabric sheet (for example obtained by “STITCH BONDING” according to the usual English designation).

[0025] According to a variant, the first layer of glue has a grammage greater than 1 g / m2, in particular greater than 2 g / m2 and / or less than 10 g / m2 and in particular less than 5 g / m2. These grammage values ​​make it possible to reduce the shape memory power of the holding device when it is on the ground. The higher the grammage, the more the rigidity of the holding device increases, reducing its shape memory power, in particular when it is placed on the ground.

[0026] According to a variant, the second layer of glue has a grammage greater than 1 g / m2, in particular greater than 2 g / m2 and / or less than 15 g / m2, and in particular less than 10 g / m2.

[0027] According to a variant, the holding device comprises a fixing layer covering at least in part a lower face of the support and configured to adhere to a floor.

[0028] The holding device can be arranged on the ground, either in floating installation (without an adhesive layer on the back), or in installation with the fixing layer (formed from a layer of glue) on the lower face of the support, further limiting the risks of the holding device lifting once unrolled.

[0029] The fixing layer may comprise a glue weight greater than 5 g / m2, in particular greater than 10 g / m2, in particular greater than 20 g / m2 and / or less than 150 g / m2, in particular less than 120 g / m2, in particular less than 100 g / m2, even more preferably less than 80 g / m2. With such glue weights, the quantity of glue is reduced to the strict minimum while limiting the lifting of the holding device and without significantly increasing the rigidity of the holding device so that it can always be rolled up and easily handled on construction sites, in particular when installing the holding device.

[0030] The holding device may comprise a surface weight greater than 50 g / m2, in particular greater than 75 g / m2, in particular greater than 100 g / m2 and / or less than 500 g / m2, in particular less than 400 g / m2, in particular less than 375 g / m2. With such weights, the holding device remains easily maneuverable on construction sites and is suitable for remaining in position on the ground during a construction site.

[0031] According to a variant, the first layer of glue and / or the second layer of glue and / or the fixing layer comprises polyurethane and / or a synthetic rubber and / or a styrene resin.

[0032] The ground support device, when it comprises a fixing layer, may comprise a protective film. Such a protective film may be, for example, a plastic film, more precisely a plastic film with a silicone layer. Such a protective film has the effect of protecting the fixing layer while waiting for the support device to be installed and of allowing easy transport of the support device, in particular when it is in the form of a roll. The efforts required to unroll the support device on construction sites are also reduced.

[0033] The ground support device, when it comprises a fixing layer, may be devoid of a protective film. In this case, the fixing layer is directly in contact with the layer of loops when the support device is packaged in the form of a roll. The forces required to unroll the support device on construction sites are slightly greater than when the support device comprises a protective film, but in such a case, on the one hand, the quantity of waste on the construction site is limited, and, on the other hand, unrolling the support device has the effect of activating, at least partially, the loops by straightening them when they are separated from the fixing layer.

[0034] The invention also relates to a roller formed from a holding device as defined previously.

[0035] The invention also relates to a conduit device comprising a conduit, in particular a conduit for circulating a heat transfer fluid of a thermoregulation system, and a holding device as defined previously, which holding device keeps the conduit in position.

[0036] The invention also relates to a method of manufacturing a holding device as defined above and comprising the following steps: • supply of a fixing assembly configured to create a self-gripping connection with a fixing means provided on a conduit, • supply of a support comprising a layer of polymer foam having a density greater than 30 kg / m3, in particular greater than 50 kg / m3, and less than 300 kg / m3, and • connection of the fixing assembly with the support by complexing so as to form a holding device having a thickness greater than 0.5 mm and less than 5 mm.

[0037] According to a variant, the first layer of glue is deposited uniformly over all or part of the width of the holding device. The complexing is carried out at a temperature above 75°C, in particular above 85°C and / or below 130°C, in particular below 120°C and preferably of the order of 105°C. The first layer of glue is based on polyurethane for example. This method makes it possible to obtain a holding device that is easily rolled up and without shape memory once placed on the ground.

[0038] According to a variant, the manufacturing method comprises a step of winding the holding device to obtain a roll of holding device.

[0039] The advantages of rolling have been described previously. Brief description of the drawings

[0040] The invention and its advantages will be better understood upon reading the detailed description given below of different embodiments of the invention given as non-limiting examples. This description refers to the appended figures, in which:

[0041] [Fig-1] [Fig.l] is a schematic view of a cross-section of a device holding, according to one aspect of the invention,

[0042] [Fig.2] [Fig.2] is a schematic view of a cross-section of a holding device, according to another aspect of the invention,

[0043] [Fig.3] [Fig.3] is a schematic view of a cross-section of a holding device, according to another aspect of the invention,

[0044] [Fig.4] [Fig.4] is a schematic view of a cross-section of a holding device, according to another aspect of the invention,

[0045] [Fig.5] [Fig.5] is a schematic view of a cross-section of a holding device, according to another aspect of the invention,

[0046] [Fig.6] [Fig.6] is a schematic view of a cross-section of a holding device, according to another aspect of the invention.

[0047] Throughout the figures, the elements in common are identified by identical numerical references.

[0048] The terms "lower" and "upper" will be understood according to their usual definition, in which the term "lower" indicates a greater proximity to the ground in the vertical direction than the term "upper". Description of the embodiments

[0049] The invention relates to a holding device 1 intended to hold a conduit and more particularly a conduit for the circulation of a fluid such as a heat transfer fluid, which can in particular be used for the production of a thermoregulation system integrated into a surface, such as a floor heating system. or a ground cooling system. The duct extends in a longitudinal direction, it being understood that the duct is typically made of a flexible material, and the main direction thus generally designates a generator or central line defining the path of the duct and is therefore not necessarily rectilinear.

[0050] The conduit is typically a flexible plastic pipe, comprising a first layer composed of a polymer material defining an internal channel, for example in a PE, a PE-R, PE-Xa, PE-Xb, PE-Xc, PE-RT or even a PP-R, and a flexible elastic envelope forming the external surface of the conduit.

[0051] The conduit typically has a circular section with an external diameter D. The external diameter D is typically greater than 6 mm, in particular greater than 8 mm, in particular greater than 9 mm, or even in certain cases, greater than 14 mm, and / or less than 25 mm, in particular less than 22 mm, in particular less than 20 mm, or even less than 18 mm. The conduit has a length Le at least 5 times greater than the external diameter D, or typically at least 100 times greater than the external diameter D, or even at least 500 times greater than the external diameter D.

[0052] The holding device 1 forms a surface, typically flat or substantially flat, and is typically adapted to form a lower layer of a floor. The holding device 1 is typically formed from a deformable shape memory material, adapted to be covered with a layer of material forming a floor, typically cement or concrete or even a liquid screed. The holding device 1 is typically placed or fixed on a screed or a slab.

[0053] As illustrated in the examples of Figures 1 to 6, the holding device 1 comprises a support 2 and a fixing assembly 3 connected to the support 2 and intended to produce a self-gripping connection with a fixing means provided on the conduit, so as to allow removable assembly of the conduit on the holding device 1.

[0054] According to one example, the fixing assembly 3 completely covers the support 2. Alternatively, the fixing assembly 3 may partially cover the support 2.

[0055] The support 2 comprises a foam layer having a density greater than 30 kg / m3, in particular greater than 50 kg / m3, and / or less than 300 kg / m3. The density of the foam layer is an apparent density measured according to the ISO 845 standard.

[0056] Alternatively, the support 2 comprises a layer of foam having a density greater than 100 kg / m3 and less than 200 kg / m3, or approximately equal to 150 kg / m3.

[0057] The holding device 1 has a thickness greater than 0.5 mm and less than 5 mm, preferably less than 3 mm, in particular less than 2.5 mm and preferably less than 2 mm.

[0058] The thickness of the support 2 and the thickness of the holding device 1 are measured with a mechanical micrometer, such as a thickness gauge (or according to the English designation "Thickness Gauge") of the brand "Hans SCHMIDT®" and according to the model "J50®" or any other equivalent device. The thickness of the foam support 2 is measured according to the ISO-1923 standard.

[0059] The thickness of the support 2 is greater than 0.2 mm and less than 3 mm.

[0060] The foam layer may comprise a polypropylene-based reticulated foam or a polyethylene-based reticulated foam or an extruded polyethylene-based foam.

[0061] The foam layer may comprise a compressive strength (or "Compressive Strength" (CS) according to the English term) greater than 50 kPa, in particular greater than 100 kPa, preferably greater than 150 kPa and / or less than 1000 kPa, in particular less than 400 kPa, in particular less than 350 kPa, preferably less than 300 kPa, in particular less than 250 kPa, in particular of the order of 200 kPa + / - 10%. The compressive strength may be measured according to standard EN 826 with a test at 0.5 mm of compression under a preload of 100 Pa. Thus, the holding device 1 has a capacity for resistance to static compression under load adapted to the force undergone during installation. The static compression is in particular due to the weight of the installers and / or the weight of the screed.Furthermore, with such compressive strength values, the holding device 1 exhibits reduced compression deformation while still having a certain capacity to absorb / smooth out ground roughness.

[0062] The foam layer may comprise a compressive creep under long-term static load (CC) resistance greater than 5 kPa, in particular greater than 10 kPa, preferably greater than 15 kPa and / or less than 100 kPa, in particular less than 40 kPa, in particular less than 35 kPa, preferably less than 30 kPa, in particular less than 25 kPa, in particular of the order of 20 kPa + / - 10%. The compressive creep under long-term static load may be measured according to standard EN 1606 with a maximum thickness loss of 0.5 mm extrapolated over 10 years.Thus, the holding device has a capacity for resistance to static compression under load and over time capable of resisting, without significantly deteriorating, the weight of objects stored occasionally, for example several days or weeks, on the holding device 1 in position on the ground.

[0063] The foam layer may include a point conformability to absorb unevenness of the floor (or "Punctual Conformability to even out unevenness of subfloor" (PCv) according to the English term) greater than 0.2 mm, in particular greater than 0.4 mm and / or less than 3 mm, in particular less than 2 mm, in particular less than 1.5 mm, preferably less than 1 mm, in certain cases of the order of 0.8 mm + / - 10%. The point conformability to absorb ground irregularities can be measured according to standard EN 16354:2018. Thus, the holding device 1 has a capacity to absorb ground irregularities which is particularly suitable. It is thus possible, once the holding device 1 is placed on the ground, to obtain an upper surface of the holding device 1 positioned in a plane substantially parallel to the ground and this for all types of construction sites, for example in the case of new constructions and / or renovations.

[0064] The foam layer may comprise a point conformability to absorb irregularities in the ground greater than 10% of the thickness of the foam layer, in particular greater than 20%, in particular greater than 30%, preferably greater than 40%, more particularly greater than 50% and / or less than 90%. The holding device 1 then has an even greater capacity to absorb irregularities in the ground. The holding device 1 thus has a leveling capacity particularly suited to construction site ground.

[0065] According to an alternative embodiment, the holding device 1 comprises a fire or flame behavior of class Al to E, for example at least class E according to standard EN 13501-1. According to an alternative, the foam layer and / or the film 7 and the fixing assembly 3 (forming an assembly called “Naît”) has a fire or flame behavior of class Al to E, for example at least class E according to standard EN 13501-1.

[0066] The holding device 1 has an offset length greater than 2 cm, in particular greater than 5 cm, in particular greater than 10 cm and / or less than 70 cm, in particular less than 50 cm, in particular less than 40 cm. The offset length can be measured according to the ISO 9073-7 standard of 1995, in particular with an angle of 41.5 degrees and a test piece movement speed of approximately 750 mm / minute.

[0067] The support 2 can also be made of bubble gum, glass veil, facing or felt, for example.

[0068] Thus, the holding device 1 can be easily and conveniently applied to the ground, in particular thanks to its lightness while being of small size compared to the holding devices 1 of the prior art, presented in the form of a plate.

[0069] The holding device 1 has the advantage of being able to be rolled up and unrolled on the ground without any lifting or warping.

[0070] The fastening assembly 3 is formed from a sheet having a plurality of loops 14 forming retaining elements. The fastening assembly 3 may in particular comprise a sheet of non-woven material and / or a knit, and may also include, for example, a looped part formed from a non-woven fabric of which threads are knitted / sewn through the non-woven fabric, for example obtained by “STITCH BONDING” according to the usual English designation.

[0071] In the case where the fixing assembly 3 comprises a knit, the knit is typically made with multifilament yarns, comprising for example between 1 and 20 filaments per loop 14, or between 2 and 17 filaments per loop 14, or between 5 and 15 filaments per loop 14. The knit comprises ground yarns which are monofilament yarns or multifilament yarns comprising for example between 2 and 20 filaments per weft and / or warp yarn, or between 2 and 17 filaments per weft and / or warp yarn, or between 5 and 15 filaments per weft and / or warp yarn.

[0072] The fixing assembly 3 is typically fixed to the support 2 to completely cover a predefined area of ​​the support 2, or the entirety of the support 2.

[0073] The holding device 1 may have markings, for example formed on an upper face of a printed film 7, these markings making it possible, for example, to form a marker for positioning the conduit. These markings may be produced by applying a layer of ink to an upper face 10 of the film 7 and / or by thermoforming. The markings are arranged to make it possible to easily identify, without additional measuring means, for example with the naked eye, at a distance of at least 50 cm from the fixing assembly 3, spaces of between 3 cm and 20 cm, for example approximately 5 cm by 5 cm and / or approximately 8 cm by 8 cm and / or approximately 10 cm by 10 cm and / or approximately 12 cm by 12 cm and / or 6 inches by 6 inches.The markings may be in the form of continuous and / or discontinuous grids and / or “+” and / or crosses and / or circles and / or squares and / or rectangles and / or inscriptions, for example including typographic characters or not, and / or a combination of one or more of these markings.

[0074] Alternatively or in combination, the markings may be arranged on the fixing assembly 3 or between the fixing assembly 3 and the support 2, for example, when the film 7 is positioned between the support 2 and the fixing assembly 3 or, for example, directly on the support 2, in particular using an ink when there is no film 7.

[0075] The fixing assembly 3 typically has a weight greater than or equal to 50 g / m2, in particular greater than or equal to 70 g / m2, and / or less than or equal to 600 g / m2, in particular less than or equal to 300 g / m2, in particular less than or equal to 200 g / m2, more particularly less than or equal to 150 g / m2.

[0076] According to one example, the plurality of loops 14 has a weight greater than or equal to 15 g / m2, in particular greater than or equal to 20 g / m2, in certain cases greater than or equal to 50 g / m2 and / or less than or equal to 100 g / m2, in particular less than or equal to 80 g / m2, in particular less than or equal to 60 g / m2, in certain cases less than or equal to 50 g / m2.

[0077] The holding device 1 comprises a first layer of glue 4 connecting an upper face 5 of the support 2 to a lower face 6 of the fixing assembly 3.

[0078] In the example of [Fig.l], the fixing assembly 3 is directly fixed to the support 2 by the first layer of glue 4.

[0079] The first layer of glue 4 partially or completely covers the support 2.

[0080] According to a variant illustrated in [Fig.2], the holding device 1 comprises a film 7 positioned between the support 2 and the fixing assembly 3, the film 7 and the fixing assembly 3 forming an assembly called “Naît”. The upper face 10 of the film 7 is fixed to the lower face 6 of the fixing assembly 3 by a first layer of glue 4. The film 7 comprises a lower face 9 fixed to the upper face 5 of the support 2 by a second layer of glue 8.

[0081] The second layer of glue 8 partially or preferably completely covers the support 2.

[0082] The first layer of glue 4 and / or the second layer of glue 8 are preferably based on polyurethane and / or based on styrene resin.

[0083] The first layer of glue 4 has a weight greater than 1 g / m2, in particular greater than 2 g / m2 and / or less than 10 g / m2 and in particular less than 5 g / m2.

[0084] The second layer of glue 8 has a weight greater than 1 g / m2, in particular greater than 2 g / m2 and / or less than 15 g / m2, and in particular less than 10 g / m2.

[0085] The film 7 may be a plastic film and / or a metallized film, for example an aluminized film. The film 7 may be printed and include markings, as described above. The marking may include 100*100 mm squares, for example.

[0086] The visual marking or marker, also called floor marking, can be made with ink or embossing, for example, allowing the installer to correctly and easily position the conduits on the holding device 1. The visual marker is arranged so as to be visible from the side of the fixing assembly 3. The visual marker can be arranged on the fixing assembly 3 or between the fixing assembly 3 and the upper surface 5 of the support 2. The visual marking or marker can also be useful to facilitate the cutting of the product on construction sites according to the dimensions of the floors to be covered.

[0087] According to a variant illustrated in Figures 3 to 6, the fixing assembly 3 comprises a fixing layer 11 formed from a layer of glue at least partially covering a lower face 12 of the support 2 and positioned to be in contact with an external surface of the holding device 1, such as a floor. This fixing layer 11 can be protected, before the installation of the holding device 1, by a protective film 13.

[0088] The fixing layer 11 has a weight greater than 5 g / m2, in particular greater than 10 g / m2, in particular greater than 20 g / m2 and / or less than 150 g / m2, in particular less than 120 g / m2, and in particular less than 100 g / m2.

[0089] [Fig. 3] illustrates a holding device 1 comprising a support 2 with the fixing layer 11 covering its lower face 12. The upper face 5 of the support 2 is covered by the first layer of glue 4 to be fixed to the fixing assembly 3.

[0090] [Fig.4] illustrates a holding device 1 comprising a support 2 with a fixing layer 11 covering its lower face 12. The fixing layer 11 is covered by a protective film 13. The upper face 5 of the support 2 is covered by the first layer of glue 4 to be fixed to the fixing assembly 3.

[0091] The protective film 13 covers at least partially, in certain cases completely, the fixing layer 11.

[0092] The protective film 13 comprises, for example, a plastic film, in particular a plastic film with a silicone layer or a paper film, for example a paper film with a silicone layer.

[0093] [Fig.5] illustrates a holding device 1 comprising a support 2 covered by a second layer of glue 8 on its upper face 5, a film 7 covering the support 2 and fixed to the latter by the second layer of glue 8. The upper face 10 of the film 7 is covered by the first layer of glue 4 to be fixed to the lower face 6 of the fixing assembly 3. A fixing layer 11 covers the lower face 12 of the support 2.

[0094] Alternatively, the first and second layers of glue 4, 8 may be replaced by calendering on all or part of the surfaces, for example. Calendering may also be carried out in addition to the first and second layers of glue 4, 8. This calendering may also be arranged so as to be visible from the side of the fixing assembly 3 and therefore to have the function of a visual marker to help the installer to correctly and easily position the conduits on the holding device 1.

[0095] The fixing layer 11 can be obtained by gluing on at least part of the surface, in certain cases on the entire surface, of the lower face 12 of the support 2.

[0096] [Fig.6] illustrates a holding device 1 identical to that of [Fig.5], except that the fixing layer 11 is covered by the protective film 13.

[0097] The invention also relates to a method of manufacturing the holding device 1 comprising at least the following steps: • manufacture or supply of a fixing assembly 3 configured to produce a self-gripping connection with a fixing means provided on a conduit, • manufacture of a support 2 comprising a layer of polymer foam having a density greater than 30 kg / m3, in particular greater than 50 kg / m3, and less than 300 kg / m3, • connection of the fixing assembly 3 with the support 2 by complexing so as to form a holding device 1 having a thickness greater than 0.5 mm and less than 5 mm.

[0098] Alternatively, the complexing operation is carried out without additional bonding agents such as glue or by “direct complexing” (or “free of glue” according to the usual English designation).

[0099] Alternatively, the fixing assembly 3 is complexed with the support 2 by the first layer of glue which is deposited uniformly over the entire width of the holding device 1 at a temperature above 85°C and below 95°C, preferably of the order of 90°C. The holding device 1 obtained is rolled up to form a roll. The holding device 1 is easily deployed on the ground without any lifting.

[0100] According to another example, the method of manufacturing the holding device 1 comprises the following steps: • manufacture or supply of a fixing assembly 3 comprising a sheet of loops 14, • manufacture or supply of a film 7, • bonding of the lower face 6 of the fixing assembly 3 to the upper face 10 of the film 7 by a first layer of glue 4 to obtain a set of layers, the set of layers formed from the fixing assembly 3, the layer of glue 4 and the film 7 being conventionally called Naît, • manufacture or supply of support 2 comprising a layer of polymer foam having a density greater than 30 kg / m3, in particular greater than 50 kg / m3, and less than 300 kg / m3, • bonding of the lower face 9 of the film 7 to the upper face 5 of the support 2 with a second layer of glue 8 by laminating, • optionally, coating the lower face 12 of the support 2 with the fixing layer 11, and • optionally, covering the fixing layer 11 with the protective film 13, so as to form a holding device 1 having a thickness greater than 0.5 mm and less than 5 mm.

[0101] The method of manufacturing the holding device 1 also comprises a step of shaping the holding device 1 into a roll.

[0102] The roll comprises, for example, a length of between 10 linear m and 100 linear m, having the effect of avoiding transverse connection zones necessary for the plates of the prior art and of having an acceptable mass for being transported before laying on the ground, for example on a construction site.

[0103] The roll comprises, for example, a width of between 40 cm and 120 cm, in particular between 80 cm and 120 cm, preferably of the order of 100 cm. The roll has a mass of, for example, between 2 kg and 35 kg, preferably between 2 kg and 20 kg, in particular between 5 kg and 20 kg in order to prevent the holding device 1 from having a shape memory once unrolled on the ground and / or to obtain a holding device 1 allowing easy handling by operators on construction sites.

[0104] To facilitate installation, and therefore unrolling of the product on site, the loops 14 are wound on the inside of the roll. Thus, the installer can easily unroll the holding device 1 by rolling the product on the ground without needing to turn it over.

[0105] For holding devices comprising a fixing layer 11 without protective film, in order to avoid an edge effect of the holding device 1 rising when it is positioned on the ground and possible pollution of the fixing layer 11, the loops 14 are wound on the outer side of the roll.

[0106] For other configurations, such as the holding devices 1 without a fixing layer 11, and the holding devices 1 comprising a fixing layer 11 and a protective film 13, both configurations can be envisaged with a preference for loops 14 wound on the outer side of the roll to facilitate installation as indicated previously.

[0107] The holding device 1 has the advantage of not retaining the shape memory of the roll when the latter is placed on the ground.

[0108] This effect is due in particular to the step of complexing the fixing assembly 3 on the support 2 with the first layer of glue which is deposited uniformly over the entire width of the holding device 1 at a temperature of the order of 90°C. The glue is a polyurethane PU type glue or a pressure sensitive adhesive tape PSA (from the English “Pressure sensitive Adhesive”).

[0109] A ground laying test was carried out with a holding device 1 initially rolled up as described in the example of [Fig.6] comprising a support 2 covered by a second layer of glue 8 on its upper face 5, a film 7 covering the support 2 and fixed to the latter by the second layer of glue 8. The upper face 10 of the film 7 is covered by the first layer of glue 4 to be fixed to the assembly fixing layer 3. A fixing layer 11 covers the lower face 12 of the support 2. A protective film 13 covers the fixing layer 11.

[0110] The support 2 has a density of 150 kg / m3. Weights of 11 g / m2, 25 g / m2, 50 g / m2 and 75 g / m2 for the fixing layer 11 have been tested and have proven sufficient to prevent the holding device 1 from lifting off the ground when a fixing layer 11 is used.

[0111] In order to evaluate whether an adhesive-coated holding device 1, i.e. comprising a fixing layer 11 but without a protective film 13 as described in the example of [Fig.3], could be unrolled easily, a holding device 1 comprising a support 2 with a density of 350 kg / m3 and a fixing layer 11 with a weight of 25 g / m2 was rolled up and then unrolled.

[0112] The unrolling of the holding device 1 went well, without delamination of the mesh, or of the set of layers formed by the fixing assembly 3 and the film 4 relative to the support 2. The bonding of the holding device 1 on polystyrene tiles showed no lifting of the holding device 1. It was even observed, during the unrolling of the holding device 1, that the fixing layer 3 straightened the loops, which had the effect of improving the cooperation of the loops with the hooks.

[0113] The conduit comprises a fixing means adapted to cooperate in such a way as to produce a self-gripping connection with the fixing assembly 3 of the holding device 1.

[0114] For example, the fastening means has a general ribbon shape and comprises a base and a plurality of retaining elements extending from an upper face of the base. The retaining elements are typically hooks, harpoons, or more generally elements adapted to engage a counterpart such as the loops 14 or a sheet of woven or non-woven material, so as to form a self-gripping connection.

[0115] The retaining elements typically each have a rod extending from the base and a head formed at a free end of the rod, opposite the base, the head being adapted to perform a function of gripping and holding a counterpart. The head may be a part formed in the extension of the rod and curved so as to define a gripping portion, or a part having a section distinct from the rod so as to define portions extending radially from one end of the rod, these portions defining gripping zones.

[0116] According to one example, the retaining elements have a shape which is preferably chosen from the group consisting of hooks, for example T-shaped and / or inverted J-shaped, and / or inverted double J-shaped or mushroom-shaped, simple rod, or cup-shaped fasteners (or “cup-shaped” according to the usual designation in English), and / or a combination of these shapes.

[0117] The fluid circulation conduit and the holding device 1 form a conduit device when the fluid circulation conduit is placed on the holding device 1 and held by the latter. In the examples previously described, the conduit device is a thermoregulation assembly.

[0118] The holding device 1 when coupled with fluid circulation conduits, ensures sufficient holding of the conduits on the ground to guarantee their correct positioning, in particular before the formation (or pouring) of the liquid screed. The lifting of the holding device 1 and of the conduit relative to the ground is limited in a satisfactory manner, in particular so as to allow the formation (or pouring) of the liquid screed.

[0119] Although the present invention has been described with reference to specific examples or alternative embodiments, it is obvious that modifications and changes may be made to these examples without departing from the general scope of the invention as defined by the claims. In particular, individual features of the various illustrated / mentioned embodiments or alternative embodiments may be combined in additional embodiments. Therefore, the description and the drawings should be considered in an illustrative rather than restrictive sense. By way of example, the invention may find application in the field of plumbing, the electrical field, for example cable management or in the field of electric underfloor heating.

[0120] It is also obvious that all the characteristics described with reference to a method are transposable, alone or in combination, to a device, and conversely, all the characteristics described with reference to a device are transposable, alone or in combination, to a method.

Claims

Claims

1. Holding device (1) intended to hold a conduit, in particular a conduit for circulating a heat transfer fluid of a thermoregulation system, comprising a support (2) and a fixing assembly (3) connected to the support (2) and intended to produce a self-gripping connection with a fixing means provided on the conduit, so as to allow removable assembly of the conduit on the holding device (1), characterized in that the support (2) comprises a layer of polymer foam having a density greater than 30 kg / m3, in particular greater than 50 kg / m3, and less than 300 kg / m3, the holding device (1) having a thickness greater than 0.5 mm and less than 5 mm.

2. Holding device (1) according to claim 1, characterized in that the foam layer has a density greater than 100 kg / m3 and less than 200 kg / m3, preferably equal to 150 kg / m3.

3. Holding device (1) according to any one of claims 1 or 2, characterized in that the holding device (1) has a thickness of less than 3 mm, in particular less than 2.5 mm and preferably less than 2 mm.

4. Holding device (1) according to any one of claims 1 to 3, characterized in that the thickness of the support (2) is greater than 0.2 mm and / or less than 3 mm.

5. Holding device (1) according to any one of claims 1 to 4, characterized in that the foam layer comprises a polyethylene-based reticulated foam or a polyethylene-based extruded foam or a polypropylene-based reticulated foam.

6. Holding device (1) according to any one of claims 1 to 5, characterized in that the fixing assembly (3) is directly fixed to the support (2) by a first layer of glue (4).

7. Holding device (1) according to any one of claims 1 to 5, characterized in that it comprises a film (7) positioned between the support (2) and the fixing assembly (3), the film (7) comprising an upper face (10) fixed to the lower face (6) of the fixing assembly (3) by a first layer of glue (4) and a lower face (9) connected to the upper face (5) of the support (2) by a second layer of glue (8).

8. Holding device (1) according to claim 7, characterized in that the second adhesive layer (8) has a grammage greater than 1 g / m2, in particular greater than 2 g / m2 and / or less than 15 g / m2, and in particular less than 10 g / m2.

9. Holding device (1) according to any one of claims 6 to 8, characterized in that the first layer of adhesive (4) has a grammage greater than 1 g / m2, in particular greater than 2 g / m2 and / or less than 10 g / m2 and in particular less than 5 g / m2.

10. Holding device (1) according to any one of claims 1 to 9, characterized in that it comprises a fixing layer (11) covering at least in part, a lower face (12) of the support (2) and configured to adhere to a ground.

11. Holding device (1) according to any one of claims 6 to 10, characterized in that the first adhesive layer (4) and / or the second adhesive layer (8) and / or the fixing layer (11) comprises polyurethane.

12. Holding device (1) according to any one of claims 1 to 11, characterized in that the holding device (1) comprises a surface weight greater than 50 g / m2 and / or less than 500 g / m2

13. ili . Conduit device comprising a conduit, in particular a conduit for circulating a heat transfer fluid of a thermoregulation system, characterized in that it comprises a holding device (1) as defined according to any one of claims 1 to 12, the holding device (1) holding the conduit in position.

14. Method for manufacturing a holding device (1) as defined according to any one of claims 1 to 12, characterized in that it comprises the following steps: • providing a fixing assembly (3) configured to make a self-gripping connection with a fixing means provided on a conduit, • providing a support (2) comprising a layer of polymer foam having a density greater than 30 kg / m3, in particular greater than 50 kg / m3, and less than 300 kg / m3, • connecting the fixing assembly (3) with the support (2) by complexing so as to form a holding device (1 19) having a thickness greater than 0.5 mm and less than 5 mm.

15. Manufacturing method as defined according to claim 14, characterized in that it comprises a step of winding the holding device (1) to obtain a roll of holding device (1).

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