Fixing profile allowing the air passage and assembly of ceiling comprising such a profile

Description

DOMAINE TECHNIQUE DE L'INVENTION

[0001] The invention relates to the field of false ceilings, and in particular to that of stretch ceilings.

[0002] The invention relates more particularly to a hook profile for a fabric for the creation of a stretched ceiling in a room allowing air circulation within it.

[0003] The air put into circulation can come from a ventilation and / or air conditioning system (heating, cooling, dehumidification, humidification). ETAT DE LA TECHNIQUE

[0004] There are known designs for suspended ceilings that allow air to pass through the room being treated. In particular, a suspended ceiling fixing system is known that allows the ceiling's support profiles to be spaced apart using brackets or spacers fixed at regular intervals, thus creating a peripheral gap. For example, see patent application FR2815112 and document FR 2 597 906.

[0005] Prior art systems or profiles, however, do not allow for precise control of air diffusion around the perimeter of the room. Furthermore, they do not eliminate the need for air intake grilles, which are commonly used and detract from the room's aesthetics.

[0006] Furthermore, it is known from document FR 2 619 531 that a fabric hanging profile, whose central core is closed by a flexible blade for the passage and locking of a non-deformable fabric hook, is equipped with various perforations on the flexible blade and on the side opposite its wall-mounting flange. These perforations, in the form of segments narrower than the screws used to fix the profile to the wall and relatively short, and being spaced far apart, do not allow easy air circulation between the plenum and the room, especially since the central core of the profile is practically completely blocked by the flexible blade retaining the fabric hook.

[0007] Also, international application WO 02 / 06604 describes a webbing attachment profile whose two opposing wings for fixing to the wall and attaching the web are provided with perforations allowing air circulation above the webbing, but whose central core is closed by a flexible blade for the passage and blocking of a non-deformable webbing harpoon, which also closes the space existing between the wall and the fixing wall, preventing any air circulation between the plenum and the room separated from each other by the webbing.

[0008] The invention aims to remedy these problems by proposing a hook profile allowing simple and quick assembly of a ceiling assembly allowing the circulation of fresh and / or treated air within a room.

[0009] The invention also aims to provide a ceiling assembly that allows for precise control of air diffusion around the perimeter of the room.

[0010] The invention also aims to provide a ceiling assembly that eliminates the need for any visible devices, particularly grilles, while ensuring air circulation within the room concerned, whether this circulation is related to air conditioning or ventilation of the room concerned. SUBJECT OF THE INVENTION

[0011] To this end, and according to a first aspect, the invention proposes a profile for attaching a canvas for the creation of a stretched ceiling in a room to be treated, as defined by claim 1.

[0012] According to the invention, a second wing of the profile is provided with a locking end for a harpoon of a canvas, the connecting wall and the hooking wing being arranged to define together an unobstructed slot for the passage of air through the profile and delimited on one side by the locking end of the harpoon of the hooking wing, the profile having at least one passage opening arranged to allow the passage of air through said profile from or towards the slot.

[0013] Advantageously, on the other hand, the air passage slot is delimited by the wall or by the fixing flange of the profile.

[0014] The profile configuration according to the invention thus makes it possible to define, along the entire length of the wall, an open air passage slot between the plenum and the room, free from any obstruction or impediment to airflow, unlike the aforementioned prior art. The openings provided on the mounting flange and / or the connecting wall of the profile according to the invention, each of which can represent an open surface of several square centimeters (for example, 4 cm²) while being spaced less than 1 cm apart, can form, for one meter of profile according to the invention, a cumulative open surface of several hundred square centimeters, thus offering maximized air circulation.

[0015] In addition, openings are provided on the profile according to the invention on the attachment wing, which is inclined, and, according to the invention, on the connecting wall which extends horizontally between the room and the plenum, which facilitates air circulation between the room and the plenum.

[0016] Advantageously, one of the wings, which serves as a hanging wing for the fabric, converges towards the wing used to attach the hanging profile or the wall to which the hanging profile is fixed. In a particular configuration, the fabric hanging wing is arranged to have an angle of inclination relative to the other wing of less than 90 degrees, and preferably between 30 and 50 degrees.

[0017] Advantageously, the access opening(s) is / are provided on the canvas attachment wing or on the connecting wall. Alternatively, in one embodiment, both the canvas attachment wing and the connecting wall may have at least one access opening.

[0018] The advantage of such an arrangement of the hanging profile (positioning of the passage openings on the hanging wing of the fabric and / or the connecting and convergence wall of the hanging profile) is to prevent the passage opening giving onto the upper slab from being visible from the room when the stretch ceiling is in place.

[0019] Advantageously, the canvas attachment wing is equipped with a plate allowing it to support a partition wall.

[0020] Advantageously, the wings are arranged to define a slot communicating with the passage opening, said slot being delimited by the fixing wing of the profile on the wall or by the wall itself when the hook profile is fixed to said wall wall and by the hook wing of the canvas.

[0021] Advantageously, the hanging profile includes a deflector provided in the slot and arranged to deflect the airflow through the profile towards the passage opening or the slot depending on whether the air enters through the slot or through the passage opening.

[0022] Ideally, the profile according to the invention is formed by the association of two distinct parts joined together, the first part forming a profile one of whose branches forms the fixing wing, the second part forming a profile equipped with a means of joining to the first part and at least one means of attaching a canvas.

[0023] In this case, the means of securing takes the form of an internal groove to receive the end of a branch of the first part of the profile, made in the thickness of the second part of the profile.

[0024] Advantageously, either embodiment of the profile according to the invention can be fitted with at least one cover for closing an air passage opening. This cover, or these covers, are add-on parts that can be positioned over certain openings in the profile to limit air circulation at that point, for example, to protect a decorative element such as a work of art positioned at that location on the wall.

[0025] The attachment profile according to the invention has the advantage, as will be understood from the detailed description of non-limiting implementation examples: to allow joint blowing and suction of air, to do away with the air grilles present in prior art systems, to control the diffusion of air in the room, to not see what is above the peripheral slot, to allow easy assembly of the stretch ceiling, to allow association with any ventilation or air conditioning equipment (heating, cooling, dehumidification, humidification).

[0026] The invention also relates to a ceiling assembly allowing air circulation within a room to be treated, the ceiling assembly comprising at least one stretch ceiling defining with the upper slab of the room to be treated under which a plenum is mounted, the stretch ceiling comprising at least one stretched fabric extending between the wall panels of the room to be treated and fixed to them by means of hook profiles, at least one of the hook profiles being a hook profile as described above so as to allow the passage of air between the plenum and the room.

[0027] Advantageously, the wings of the mounting profile are arranged to define a slot communicating with the airflow opening and oriented so that air flows from the plenum outlet along the wall to which the profile is fixed. The air blown along the vertical walls equipped with a mounting profile that allows airflow will effectively temper the walls, thus reducing the temperature difference between these walls and the ambient air.

[0028] Advantageously, the plenum comprises a first and a second space separated by a partition wall, one of the spaces defining a plenum space for the air intake into the room, the other space defining a plenum space for the air exhaust from the room.

[0029] Advantageously, the ceiling assembly comprises a plenum delimited by a stretch ceiling mounted in a room adjoining the room to be treated and the upper slab of the adjoining room, said plenum being separated from the plenum of the room to be treated by a partition through which passes at least one conduit allowing fluidic communication between the two plenums.

[0030] Advantageously, the ceiling assembly is equipped with a ventilation and / or air conditioning system fluidly connected, at least at the inlet, to the plenum of the room to be treated.

[0031] Advantageously, the air conditioning system is housed in the plenum of the adjoining room.

[0032] The ceiling assembly and the hanging profiles according to the invention offer the possibility of implementing, according to a first configuration, the blowing and extraction of air within the same room, and therefore in the same volume and, according to a second configuration, the blowing of air within the room to be treated (ventilation and / or air conditioning) and the extraction of air in an adjoining room.

[0033] In cases where air supply and exhaust are used within the same room, the plenum between the ceiling slab and the stretch ceiling will advantageously be separated into two distinct and airtight volumes. This separation can be achieved in two ways: either using a standard partition profile supported by a vertical partition wall, in which case the stretch ceiling will be fitted with a divider at the level of the partition profile, or using a special profile of the suspension system (a profile with a plate allowing the attachment of a vertical partition wall). In the latter case, there will be no need to install a divider on the stretch ceiling.

[0034] The ceiling assembly and the mounting profiles according to the invention therefore make it possible to address the following three scenarios: Air-conditioned and / or ventilated room with air extraction into an adjoining room; air-conditioned and / or ventilated room with air supply and extraction within the same room and installation of a separator at the level of the suspended ceiling; air-conditioned and / or ventilated room with air supply and extraction within the same room and use of the special extraction profile.

[0035] The ceiling assembly thus produced with the hanging profiles according to the invention makes it possible to completely do without air supply or extraction grilles so that the aesthetics of the room are improved.

[0036] Furthermore, when using a heating or air conditioning system, part of the power will be transmitted by radiation (hot or cold) from the ceiling, the rest by the circulation of air blown by means of the profiles (around the perimeter of the room), thus generating excellent thermal comfort for the occupants. BREVE DESCRIPTION DES FIGURES

[0037] Other objects and advantages of the invention will become apparent during the following description, made with reference to the accompanying drawings, in which: there figure 1 represents a schematic view of a ceiling assembly; the figure 2 represents a perspective view of a profile implemented in the fastening assembly of the figure 1 ; THE figures 3 à 7 represent respectively variants of the implementation of a ceiling assembly using a fixing profile of the figure 2 ; there figure 8 represents a perspective view of a mounting profile according to a second example; the figure 9 represents a perspective view of a mounting profile according to another example; the figures 10 à 12 represent respectively variants of the implementation of a ceiling assembly using the fixing profile of the figure 9 . ; there figure 13 represents the attachment profile of the figure 9 equipped with a protective mesh; the figure 14 represents a perspective view of a mounting profile fitted with a filter; the figure 15 represents a perspective view of a mounting profile according to the invention figure 16 represents a schematic view of a ceiling assembly using another attachment profile according to the invention; the figure 17 represents a perspective view of the attachment profile implemented in the ceiling assembly of the figure 16 ; there figure 18 represents a schematic cross-sectional view of a hanging profile made in two parts according to a first embodiment, mounted on a wall and supporting two canvases. figure 19 Figures 20a) to 20d) represent a schematic cross-sectional view of a hanging profile made in two parts according to a second embodiment, mounted on a wall, supporting a canvas and equipped with internal brackets for fixing functional elements. Figures 20a) to 20d) represent a first embodiment of a cover for the openings of a hanging profile according to the invention by respectively: a top view (Figure 20a), a bottom view (Figure 20b), a three-quarter front perspective view (Figure 20c), a side view (Figure 20d). Figures 21a) to 21d) represent a second embodiment of a cover for the openings of a hanging profile according to the invention by respectively: a top view (Figure 21a), a bottom view (Figure 21b), a three-quarter front perspective view (Figure 21c), a side view (Figure 21d). figure 22 represents a variant embodiment of the attachment profile of the figure 19 .

[0038] For clarity, identical or similar elements of the different embodiments are identified by identical reference symbols across all figures. DESCRIPTION DETAILLEE DES FIGURES

[0039] There figure 1 illustrates a schematic view of a ceiling assembly allowing air circulation within a room to be treated. 1. By "room to be treated" is meant a room intended to receive fresh air or to be treated according to the system implemented (ventilation system as illustrated on the figure 1 or air conditioning system).

[0040] In the illustrated embodiment, the ceiling assembly implements within the room to be treated 1 a stretch ceiling (or false ceiling) formed of a stretched fabric 3 extending between the wall walls 4a, 4b of the room to be treated 1 and fixed to them via hanging profiles and delimiting, with the upper slab 8, a plenum 14 and a plenum 16 separated in a sealed manner by a wall 11 equipped with a separation profile 27.

[0041] To allow air circulation within the room, two of the room walls are fitted with attachment profiles arranged to permit airflow between plenums 14 and 16 and the room to be treated 1. Depending on whether they permit the passage of fresh supply air or the passage of exhaust air, they will be referred to as supply profile 6a and exhaust profile 6b. These profiles are, however, identical. Examples of supply / exhaust profiles will be described later.

[0042] As illustrated on the figure 1 The 6b suction profiles are fixed to the walls opposite the walls fitted with the 6a supply profiles. This has the advantage of obtaining optimal air sweeping of the room to be treated 1.

[0043] The ceiling assembly also includes a vertical partition wall 11 located within the plenum 14 to delimit two spaces: one space defining a plenum space for air intake into the room, and the other space defining a plenum space for air exhaust from the room. These spaces will subsequently be referred to as the supply plenum 14, into which fresh air is received, and the exhaust plenum 16, into which air extracted from the room to be treated 1 is received.

[0044] To ensure a watertight separation between the two spaces, the partition wall 11 is fixed at its lower end to a separation profile 27 which supports the suspended ceiling as shown in the figure 1 Such a separation profile is known in itself.

[0045] The supply air plenum 14 is equipped with a fresh air supply duct 17 passing through the wall of the portion of the upper slab 8 delimiting the supply air plenum. Similarly, the exhaust air plenum 16 is equipped with an exhaust air duct 18 passing through the portion of the upper slab delimiting the exhaust air plenum.

[0046] There figure 2 shows an example of the implementation of a supply and extraction profile 6a, 6b allowing the passage of air between the room to be treated 1 and the associated plenums 14 and 16, and implemented in the ceiling assembly of the figure 1 .

[0047] The blowing and suction profile 6a, 6b comprises a first vertical wing 60 and a second wing 61 connected to each other by a horizontal connecting wall 62.

[0048] The first flange defines a fixing flange 60 for attaching the profile to the wall. To this end, the fixing flange has holes 21 for the passage of fasteners such as screws, rivets, or the like. In the illustrated embodiment, the fixing flange 60 extends from and above the connecting wall (i.e., upwards). It is extended at its lower end by a third, vertical flange 63.

[0049] The second wing defines a 61 attachment wing for attaching the fabric. The attachment wing converges towards the third wing. Advantageously, the attachment wing has an angle of inclination relative to the third wing between 30 and 50 degrees, and a 45-degree angle of presence. In accordance with the figure 2 This attachment wing 61 carries on its inner wall facing the wall a means 30 for a harpoon 50 of a canvas, configured to position the canvas harpoon at a distance from the wall it runs along, thus defining a gap for airflow. The attachment means 30 positions the canvas harpoon along the lower edge of the attachment wall 61, leaving an airflow gap between the harpoon and the wall (or the third vertical wing 63). For example, the distance between the attachment end and the means 30 can be between 0.5 and 5 cm, preferably between 1.5 and 3 cm, and even more preferably around 2 cm.Ideally, as in the examples shown, the webbing harpoon could be provided to be elastically deformable, and the attachment means 30 could be in the form of a C-shaped hook in cross-section curved towards the inner wall of the attachment wall 61 so as to form with this inner wall a passage groove for the elastically deformed harpoon, leading to a throat for receiving the harpoon in its undeformed configuration and a locking rim for the harpoon received in the throat and kept away from the wall 4a by the attachment wall 61 in order to allow air to pass through.

[0050] Thus, as illustrated, the mounting flange, together with the third flange, defines a slot 22 with a passage opening 22a whose axis of opening is substantially parallel to the mounting flange on the wall. This ensures that air is supplied to the room along the wall to which the supply air profile is fixed, and that air is drawn out of the room (and therefore into the plenum) along a path substantially tangential to the wall supporting the intake air profile. The slot, along with the openings in the mounting flange, allows air to pass between the plenum and the room.

[0051] The supply and exhaust profile 6a, 6b includes passage openings 19 allowing air to flow between the plenum and the room. In the illustrated embodiment, the openings are rectangular windows aligned along the hanging flange. This is, of course, only one example; the openings may have a different shape and / or be arranged differently. Furthermore, the number of openings is variable, and a single opening or several openings may be provided. There may also be no openings, in which case the profile, thus configured, becomes a "classic" stretch ceiling hanging profile 7.

[0052] Advantageously, the 6a and 6b mounting profiles are available in various sizes. These sizes allow for different widths of the slot 22 located at the bottom of the profile, and therefore different cross-sections of the opening 22a. Using supply air profiles calibrated in this way allows for precise control of the air velocity supplied around the perimeter of the walls fitted with these profiles. The air velocity is calculated based on the supply air flow rate and is determined to ensure sufficient reach of the supply airflow to the bottom of the vertical wall while maintaining very low air velocities perceived by the room's occupants, thus ensuring optimal comfort. Similarly, using intake profiles calibrated in this way allows for control of the intake velocity to ensure optimal airflow.

[0053] Advantageously, the blowing and suction profile 6a, 6b includes a deflector 23 ( figure 8 ) to deflect the airflow towards the passage openings or the passage slot, depending on whether the air enters through the passage slot or the passage openings. The presence of a deflector has the advantage of improving airflow by minimizing air resistance and therefore the aerodynamic pressure losses in the profiles. In the embodiment illustrated on the figure 8 The deflector connects the connecting wall to the third wing. The deflector can be any shape (straight, curved, etc.), but the optimal shape follows a circular arc as shown in the diagram. figure 8 .

[0054] Fresh air is supplied to the supply plenum via the supply duct that passes through the upper slab, then through the supply air profile. Due to the orientation of slot 22, the fresh air exits the supply air profile and flows along the wall surface fitted with the profile.

[0055] The intake air is drawn towards the suspended ceiling along a path roughly tangential to the wall, which is fitted with an intake profile. The intake air is then extracted from the supply plenum via the exhaust duct.

[0056] Adjoining room 2 is shown with a stretch ceiling. It is clear, of course, that this room could be without a ceiling, as the adjoining room is not used for air circulation in the room being treated, unlike the ceiling assemblies shown in the diagrams. figures 3 à 7 , 11 et 12 .

[0057] There figure 3 represents a particular embodiment in which fresh air is blown into the room to be treated 1 and air is extracted from an adjoining room 2.

[0058] The room to be treated 1 is equipped with a stretch ceiling 3, which, together with the slab above, forms a plenum. The stretch ceiling is attached to the walls 4a, 4b of the room via hanging profiles. In the illustrated embodiment, only one of the walls, the furthest one in the example (wall 4a), is equipped with a profile allowing air passage; the remaining walls are equipped with conventional hanging profiles 7 (i.e., not arranged to allow air passage). These profiles 7 can also be made using profiles 6a / 6b without air passage openings 19 on the flange 61. In the illustrated example, the profile is a supply profile 6a.

[0059] Similarly, the adjoining room 2 is equipped with a stretch ceiling 5, creating a plenum with the upper slab, a plenum 15. The stretch ceiling is attached to the walls of the adjoining room via suspension profiles, at least one of which is a suction profile 6b. If not all the walls are equipped with suction profiles 6b, the remaining walls can be fitted with standard stretch ceiling suspension profiles 7. In the example shown, only one wall, in this case the one furthest from the room to be treated (wall 4c), is fitted with suction profiles.

[0060] The plenum 14 of the room to be treated 1 forms the supply plenum while the plenum 15 of the adjoining room 2 forms the suction plenum.

[0061] In the illustrated embodiment, the aspirated air passes between the volume of the treated room 1 and the volume of the adjoining room 2 via an existing or purpose-created airtight seal between the two rooms, for example, a cutout under the door 4 separating the two rooms. The aspirated air then enters the plenum 15 through the peripheral suction slot 22 created by the installation of suction profiles 6b.

[0062] The aspirated air will then be extracted from the plenum of the adjoining room via an air duct 18 passing through the upper slab from the plenum of the adjoining room.

[0063] There figure 4 represents another embodiment in which the circulating air is treated air from an air conditioning unit 12 located in the adjoining room of the room to be treated 1.

[0064] The ceiling assembly replicates the arrangement of the ceiling assembly of the figure 3 in which the fresh air intake and exhaust air ducts are replaced respectively by a supply air duct 9 connected to the outlet of the air conditioning unit and a return air duct 10 connected to the inlet of the air conditioning unit, the supply air duct passing through the wall separating the plenum of the room to be treated from the plenum of the adjoining room. As before, the plenum of the room to be treated forms the supply air plenum while the plenum of the adjoining room forms the return air plenum.

[0065] The treated air is supplied to the plenum of the room to be treated 1 by the air conditioning unit via the supply duct, which passes through the supply profile and runs along the wall fitted with the profile. The extracted air passes between the volume of the treated room 1 and the volume of the adjoining room 2 via an airtight seal between the two rooms. The extracted air then enters the plenum 15 of the adjoining room through the peripheral suction slot 22 created by the suction profile 6, where it reaches the air conditioning unit via the suction duct 10.

[0066] In some cases, however, it is not possible to create a sufficient airtight seal between the room to be treated 1 and an adjoining room 2 to allow the extracted airflow to pass through. This may be the case, for example, in rooms requiring acoustic insulation. The ceiling assembly illustrated in the figure 5 allows us to overcome this constraint. The ceiling assembly implemented has a similar arrangement to the ceiling assembly of the figure 1 It also includes an intake air duct 15 passing through the partition separating the intake plenum of the room to be treated from the plenum of the adjoining room in which the air conditioning equipment is installed, as well as a supply air duct 9 passing through the partition separating the two rooms and the partition wall 11 separating the intake plenum and the supply plenum of the room to be treated. In this case, the adjoining room is fitted with a stretch ceiling 5 attached to the walls of the adjoining room via conventional mounting profiles 7 (i.e., not designed to allow airflow).

[0067] As in the entire ceiling of the figure 1 The intake air enters the intake plenum 16 through the peripheral intake slot 22 created by the installation of the associated intake profile 6. The intake air then returns to the air conditioning unit via the intake duct 10. The treated air is then recirculated through the supply duct 9.

[0068] It may also be provided that the suction ducts 10 and supply ducts 9 are connected respectively to an extraction / exhaust duct 18 and a fresh air inlet duct 17 communicating with the outside of the adjoining room and the associated plenum ( figure 6 ) so as to achieve both the air conditioning and the ventilation of the room to be treated 1.

[0069] The ceiling assembly thus produced makes it possible to treat a room that is very airtight (for acoustic reasons, for example) in relation to its adjoining rooms 2.

[0070] There figure 9 illustrates an alternative embodiment of the attachment profile according to the invention. In this alternative, the attachment profile 24 has the same shape as the profile of the figure 2 except that it also includes a horizontal plate 25 extending under the passage openings, in a direction opposite to the third wing. The plate's function is to support a vertical partition wall without having to install a visible separator on the stretch ceiling, as illustrated in the figures 10 à 12 This improves the aesthetic appearance of the stretch ceiling while ensuring air circulation within the room.

[0071] As illustrated on the figures 10 à 12 The 24 suction profiles are fixed to the walls opposite the walls with the supply profiles. This has the advantage of achieving optimal airflow in the room being treated.

[0072] Plate 25 can advantageously be provided with a riser at its end or any restraint allowing the vertical separating wall to be attached.

[0073] Advantageously, the supply and extraction profiles 6a, 6b, 24 can be fitted with a mesh screen at the openings 19 to cover them. The presence of this mesh screen prevents any impurities or insects from accessing the plenum 14, 15, 16 located between the upper slab and the suspended ceiling. As an example, the supply and extraction profile 24 has been illustrated with such a filter 26 ( figure 13 ).

[0074] According to a particular embodiment, the profiles intended for suction 6b, 24 may be provided with a filter. This filter can then replace the filters present in the ventilation and / or air conditioning units connected to the system. Advantageously, the filter is removable to allow for replacement or cleaning. figure 14 shows a possibility of integrating such a filter into a suction profile of the type of that of profile 24. In the illustrated embodiment, the filter 28 is held against the inner face of the hook wing 61, placed on the edge 20b delimiting the hook groove 20 of the fabric, and is held by a longitudinal tab 28 carried by the inner face of the connecting wall 62. By "inner face", we mean the faces oriented towards the side of the slot 22.

[0075] It is clear that the attachment profiles are not limited to those described above and that other configurations are possible without departing from the scope of the invention. In particular, a profile without a third wing may be used. In this case, the slot will be defined by the attachment wing of the canvas and the wall to which the profile is fixed. Similarly, the third wing may be used as the fixing wing.

[0076] Similarly, in the embodiments described above, the passage openings 19 are supported by the webbing attachment wing 61. In an alternative embodiment, the passage openings 19 may be provided not in the attachment wing, but in the connecting wall 62. For example, the profile of the figure 9 has been illustrated with such a positioning of the passage openings 19 ( figure 15 ).

[0077] The ceiling assembly is compatible with all air conditioning and / or ventilation technologies. Air conditioning and / or ventilation equipment can be installed in plenum 14 located above room 1 to be treated, in plenum 15 of any room adjacent to room 1 to be treated, or anywhere else in the building. Generally, equipment should be installed outside the volume of room 1 to be treated, particularly to avoid any noise pollution from the operation of the machinery.

[0078] Regardless of the room's air conditioning and / or ventilation capabilities, the invention allows for the installation of any type of stretch ceiling (conventional, acoustic, etc.) and the use of any system compatible with stretch ceilings, such as backlighting, sound diffusion systems, etc. Furthermore, an LED strip system could be installed at the corner between wing 61 and connecting wall 62, thus providing peripheral lighting for the room without the LED strip being visible.

[0079] Generally, at least one wall in the room to be treated will be equipped with a supply air profile. It will be possible to choose which walls are fitted with supply air profiles (6), and therefore which walls are supplied with treated and / or fresh air. The other walls can be fitted with standard stretch ceiling attachment profiles (7). This choice optimizes the room's thermal comfort. For example, it will be preferable to supply air along the exterior walls of the room, as these walls are generally colder than the ambient air in winter and warmer than the ambient air in summer.

[0080] There figure 16 illustrates another variant of the realization of a ceiling assembly, the latter including 40 light means fixed on the upper slab 8.

[0081] The illustrated ceiling assembly features a stretch ceiling formed by two stretched fabrics 3a, 3b extending between the walls 4a, 4b of the room to be treated. These fabrics 3a, 3b, arranged parallel to each other, are fixed to the walls by means of two hanging profiles 32, 34, one constituting a supply profile 32, the other constituting a suction profile 34. An enlarged view of the supply profile 32 is illustrated on the figure 17 .

[0082] As in the embodiments of the previously described hanging profiles, the blowing profile 32 comprises a fixing wing 60 connected to the hanging wing 61 of the fabrics by a connecting wall 62. As illustrated in the figure 17 The wings 60, 61 are arranged so that, when the blowing profile 32 is fixed to the wall 4a, the hanging wing 61 is inclined relative to the connecting wall, converging towards the wall 4a. The hanging wing 61 has two attachment grooves 20a, 20b for the fabrics 3a, 3b. One of the grooves is provided in the upper part of the hanging wing 61 with an opening on the inside of the profile, the other groove being provided in the lower part of the hanging wing 61. The passage openings 19 for the passage of air between the plenum 14 located above the upper tensioned fabric 3b are supported by the connecting wall 62.

[0083] The blowing profile 32 further comprises a vertical wing 64 extending from the connecting wall 62, parallel to the fixing wing 60, in a direction opposite to the attachment wing 61. In the illustrated embodiment, the vertical wing 64 is formed at the end of the connecting wall 62. The function of this vertical wing 64 is to prevent the diffusion of light from the lighting devices 40 through the passage openings 19 and the passage slot 22. It will be referred to hereafter as the blocking wing 64 (or screen wing).

[0084] To avoid any shadows cast on the canvases, the ceiling assembly advantageously includes a profile 36 with a substantially V-shaped cross-section fixed to the upper slab 8 of the room, near the hanging profile 32, as illustrated in the figure 16 . In particular, the profile 36 is positioned relative to the attachment profile 32 so as to leave sufficient space between the blocking wing 64 and the profile 36 to allow the passage of air from the fresh air supply duct 17.

[0085] In the illustrated embodiment, the attachment profile 32 and the profile 36 are two separate and independent parts. However, according to an alternative embodiment, these two profiles can be a single part. In this case, the locking wing 64 would also include, like the connecting wall 62, openings to allow air circulation.

[0086] The suction profile 34, for its part, retains all the characteristics of the supply profile 32, except that, unlike the latter, it lacks a blocking wing. Light diffusion is thus blocked in the ceiling assembly illustrated in the figure 16 , by the separating wall 11 of the supply plenum 14 and the suction plenum 16 of the room. It is of course evident that a suction profile 34 identical to the supply profile 42 can also be provided without departing from the scope of the invention.

[0087] In addition to or as a replacement for the lighting means 40 provided in the plenum 14 of the ceiling assembly, lighting means may be provided fixed to the upper part of the hanging profile according to the invention, preferably on the face of the locking wing 64 oriented towards the wall 4a, 4b so as to obtain peripheral lighting of the room or frame. In this case, it is preferable to provide suction profiles 34 with locking wings 64.

[0088] According to a particular embodiment not illustrated, it may also be provided for positioning near the passage openings 19 a loudspeaker or any other equipment enabling the diffusion of sound in order to ensure efficient transmission of sound.

[0089] According to another advantageous embodiment, shown on the figures 18 et 19 , the blowing and suction profile 6a, 6b can be in the form of two independent parts 70, 71 to be fixed to each other.

[0090] In the example shown, the first part 70 of the profile constitutes the fixing wing 60 and part of the horizontal connecting wall 62, and the second part of the profile 71 constitutes the remaining part of the horizontal connecting wall 62 and the inclined attachment wing 61.

[0091] The first part of the profile 70 is defined in a particularly simple form: that of a longitudinal profile with an L-shaped cross-section, the vertical branch of which constitutes the fixing flange 60 and the horizontal branch 73 constitutes a portion of the horizontal connecting wall 62.

[0092] For air circulation purposes, the horizontal arm of the L-shaped profile will be fitted with air passage openings 19.

[0093] The second part of the profile 71 is slightly more complex and has the general shape of a longitudinal profile with a trapezoidal cross-section, of which the long base 74, the short base 77 and the lateral side interposed between them 75 form the inclined attachment wing 61, the opposite lateral side 76 which is horizontal, forming the remaining part of the horizontal connecting wall 62.

[0094] More specifically, as seen on the figure 18 The second profile section has a longitudinal groove 78 for receiving the end of the horizontal arm 73 of the L-shaped section of the first profile section 70. An added locking means, such as a screw, may be provided to engage in a hole 79 formed in the upper surface of the end of the horizontal arm of the L-shaped section to lock it in place, passing through the thickness of the upper lateral side of the second profile section. A reference mark 80 may be provided on the external surface of the upper lateral side 76 of the second profile section to correctly position the screw or other locking means in relation to the hole 79 before it is inserted into the hole.

[0095] This second part of the profile 71 includes on the external surface of its lateral side 75 which is vertical, the aforementioned hook 30 allowing passage in a deformed configuration and then locking in a rest configuration of an elastically deformable harpoon 50 for attaching a main tensioned canvas 3a.

[0096] Advantageously, this second part of profile 71 can include a second means for attaching an elastically deformable harpoon to a secondary tensioned fabric 3b, as illustrated in the figure 18 . This second attachment means 81 is for example provided in the form of a longitudinal groove partially closed by at least one rim (two in the figure) for retaining the harpoon of the second canvas, formed from the external surface of the long base 74 of this second part of the profile, for example immediately under the groove 78 for receiving the end of the first part of the profile.

[0097] This second 3b fabric will be able to fulfill the function of collecting and retaining deposits caused by dust and / or insects so that these remain away from the underlying main fabric and cannot be seen from the room through it when it is, for example, designed to be translucent.

[0098] The second part of the profile may also include various recesses 82 (identified on the figure 19 ) arranged within the thickness of this second profile section, between the two locking grooves for the harpoons, to serve as housings for brackets or fixing sleeves 83 for functional elements arranged in the plenum, or simply to lighten the structure of this second profile section 70 to optimize its cost. Protruding lugs 86 may be provided on the wall forming these recesses to partition their space and accommodate several brackets or to lock them in their respective recesses.

[0099] At the end of the second part of profile 71, forming the junction between the horizontal upper side and the long inclined base, an inclined groove may be provided made in the thickness of this second part of profile parallel to the external surface, in order to serve as a support and fixing for a blocking wing or "screen wing" as presented previously.

[0100] For air circulation needs, air passage openings 19 may be provided in this second part of the profile on the walls constituting the small and large base in communication with each other.

[0101] These openings, like those in the first part of the profile, can be closed if necessary by covers provided for this purpose and illustrated on the figures 20, 21 .

[0102] These covers 90 may be in the form of parallelepiped blocks, the upper face of which has a lateral rim 91 designed to fit against the contour of the opening 19 that the cover closes, and the lower face of which has elastically deformable blades 92 that retract when passing through the opening and lock behind the contour that delimits it. In the example shown, the elastic blades extend along the length of the lateral sides of the parallelepiped block, except for its corners.

[0103] Visual markers 88 in the form of raised or longitudinal ridges may be provided on the external surfaces of each part of profile 70, 71 in order to easily and precisely connect two parts of profiles end to end if necessary.

[0104] The construction of the suction or blowing profile in two parts thus defined is particularly ingenious because the second part 71 more complex can be produced in large series with a single dimension, while the first part 70 of extreme simplicity can be produced with different dimensions in particular with regard to the length of the arm of the L to be fixed to the second part of the profile to adjust according to the need, by a simple choice of available L-profile, the desired spacing between the wall and the edge of the fabric and thus the size of the slot and the air circulation.

[0105] Thus, the L-shaped profile of the figure 19 includes a longer horizontal branch which positions the edge of the main layer 3 at a greater distance from the wall 4a than is the edge of the main layer 3 in the variant of the embodiment of the figure 18 where the horizontal arm of the L-shaped profile is shorter.

[0106] There figure 22 represents a variant embodiment of the blowing and suction profile 6a, 6b of the figure 19 In this variant, the second part of profile 71 reproduces the characteristics of the one illustrated on the figures 18 et 19In contrast, the first section of profile 70 has a right-angled Z-shaped cross-section, rather than an L-shaped one. More precisely, the first section of profile 70 consists of two horizontal arms connected by a vertical arm, these horizontal arms extending in opposite directions. The upper horizontal arm, referenced 60, forms the fixing flange. It is attached to the wall 4a via a right-angle bracket 60b. The lower horizontal arm, referenced 73, forms part of the horizontal connecting wall 62. To allow air circulation, the vertical connecting arm, numbered 60a, is equipped with an air passage opening 19. As before, the opening(s) provided on the first section of profile 70, like those on the second section of profile 71, can be closed, if necessary, by covers as described previously.

[0107] The invention is described above by way of example. It is understood that a person skilled in the art is able to carry out different embodiments of the invention without departing from the scope of the invention as defined by the attached claims.

Claims

1. A canvas hanger profile (6a, 6b, 24, 32, 34) for making a stretched ceiling in a room to be conditioned (1), the hanger profile comprising at least two wings (61, 63) connected together by a connecting lining (62), one of the wings (63) being arranged to allow the fastening of the hanger profile on a wall of the room to be conditioned, a second wing, which constitutes a canvas hanger wing (61), being provided with a blocking end (30) of a canvas hook (50), the connecting lining (62) and the canvas hanger wing (61) being arranged to define together an unclosed air passage slot through the profile and delimited by the blocking end (30) of the canvas hanger wing hook (61), the profile having at least one through opening (19) arranged to allow air to pass through said profile from or towards the slot (22), characterized in that the through opening (19) is provided on the connecting lining (62).

2. Hanger profile (6a, 6b, 24, 32, 34) according to claim 1, characterized in that the canvas hanger wing (61) converges in the direction of the wing (63) allowing the fastening of the hanger profile or of the wall to which the hanger profile is fastened.

3. Hanger profile (6a, 6b, 24, 32, 34) according to claim 2, characterized in that it has a through opening (19) provided on the canvas hanger wing (61).

4. Hanger profile (6a, 6b, 24, 32, 34) according to claim 2 or claim 3, characterized in that the canvas hanger wing (61) is arranged to have an angle of inclination with respect to the other wing of less than 90 degrees, and preferably between 30 and 50 degrees.

5. Hanger profile (6a, 6b, 24, 32, 34) according to any of the above claims, characterized in that the wings (61, 63) are arranged to define a slot (22) communicating with the through opening (19).

6. Hanger profile (6a, 6b, 24, 32, 34) according to the previous claim, characterized in that the hanger profile includes a deflector (23) in the slot (22) and arranged to deflect the air flow through the profile towards the through opening (19) or slot (22) depending on whether the air enters through the slot (22) or the through opening (19).

7. Hanger profile (6a, 6b, 24, 32, 34) according to any of the previous claims, characterized in that the hanger profile includes a plate (25) allowing a separation partition to be supported.

8. Hanger profile (6a, 6b, 24, 32, 34) according to any of the previous claims, characterized in that it is formed by the association of two distinct parts secured to one another, the first part forming a profile, one of the branches of which forms the fastening wing, the second part forming a profile with a means of attachment to the first part and at least one means for hanging a canvas.

9. Hanger profile (6a, 6b, 24, 32, 34) according to the previous claim, characterized in that the means of attachment is in the form of an internal groove for receiving the extremity of a branch of the first part, said groove being made in the thickness of the second profile part.

10. Hanging profile (6a, 6b, 24, 32, 34) according to any of the previous claims, characterized in that it comprises at least one cover for closing a through opening for the passage of air.

11. A ceiling assembly allowing air circulation within a room to be conditioned, the ceiling assembly comprising at least one stretched ceiling defining with the upper slab (8) of the room to be conditioned (1) under which a plenum (14, 16) is mounted, the stretched ceiling comprising at least one stretched canvas (3, 3a, 3b) extending between the walls (4a, 4b) of the room to be conditioned (1) and fixed to them by means of hanger profiles, at least one of the hanger profiles being a hanger profile (6a, 6b, 24, 32, 34) according to any of the previous claims so as to allow the passage of air between the plenum (14, 16) and the room to be conditioned (1).

12. Ceiling assembly according to the previous claim, characterized in that the wings of the hanger profile (6a, 6b, 24) are arranged to define a slot (22) communicating with the through opening (19) and oriented so that the air exiting from the plenum circulates along the wall on which said profile is fastened.

13. Ceiling assembly according to either of the two previous claims, characterized in that the plenum has first and second spaces separated by a separation lining, one of the spaces defining a plenum space for the entry of air into the room, the other space defining a plenum space for the exit of air from the room.

14. Ceiling assembly according to any of claims 11 to 13, characterized in that it comprises a plenum (15) delimited by a stretched ceiling mounted in a room (2) adjacent to the room to be conditioned (1) and the upper slab of the adjacent room, said plenum being separated of the plenum (14, 16) of the room to be conditioned by a partition traversed by at least one conduit allowing fluid communication between the two plenums.

15. Ceiling assembly according to any of claims 11 to 14, characterized in that it is equipped with a ventilation and / or air conditioning system fluidly connected, at least at the entry, to the plenum of the room to be conditioned.

16. Ceiling assembly according to claim 15 when it depends on claim 14, characterized in that the air conditioning system is housed in the plenum of the adjacent room.