Suspended ceiling with an improved anti-uplift device

Abstract

Suspended ceiling with an improved anti-uplift device (6) comprising: - a first part (60), mounted inside a groove (41) of a base profile (4); - a second, elastically deformable part (61), rotationally fixed to the first part (60); the anti-uplift device (6) being rotationally free within the groove (41) about a vertical axis (Z) between: - an active position, in which the second part (61) bears against a surface of a slab (5) when the edge of the slab (5) is received by the bearing edge (40) of the base profile (4); - an inactive position, in which the second part (61) releases said surface of the slab (5) when the edge of the slab (5) is received by the bearing edge (40) of the base profile (4). Figure 5

Description

Title of the invention: Suspended ceiling with an improved anti-uplift device technical field

[0001] The invention relates to the technical field of suspended ceilings, also known as false ceilings.

[0002] The invention finds its application in particular in the improvement of sound insulation, the improvement of the aesthetics of a space, the integration of lighting devices, the concealment of infrastructures (e.g. cables, pipes, ventilation ducts...), the improvement of energy efficiency (e.g. additional insulation) etc. State of the art

[0003] A suspended ceiling known from the prior art comprises: - a set of edge profiles, intended to be fixed to a frame; - a set of load-bearing profiles, intended to be attached to suspension cables; - a set of spacer profiles, arranged to connect an edge profile to a load-bearing profile or arranged to connect two load-bearing profiles together.

[0004] Each edge profile, each load-bearing profile, and each spacer profile are provided with a base profile comprising: - at least one support edge, intended to receive an edge of a slab, and extending along a longitudinal axis; - a groove, extending under the bearing edge along an axis parallel to the longitudinal axis.

[0005] The suspended ceiling typically includes an anti-uplift device, designed to prevent the edge of the slab from lifting. Indeed, the suspended ceiling must withstand, without lifting, any potential overpressure in the room or a negative pressure in the plenum (i.e., the space between the suspended ceiling and the surface to which the suspended ceiling is fixed).

[0006] According to a first embodiment, the anti-uplift device is a steel wire bent into the shape of a pin which is inserted into two holes formed in the edge profiles, the load-bearing profiles and the spacer profiles.

[0007] According to a second embodiment, the anti-lifting device is a clip (or rider) allowing elastic interlocking above the edge profiles, the load-bearing profiles and the spacer profiles.

[0008] Such prior art anti-uplift devices are not entirely satisfactory insofar as: (i) The bent steel wire, shaped like a pin, prevents subsequent dismantling of the slab; (ii) the clip (or clip) will pop out during subsequent dismantling of the slab, making it impossible to easily reattach it for reassembly. Description of the invention

[0009] The invention aims to remedy, in whole or in part, the aforementioned drawbacks. To this end, the invention relates to a suspended ceiling, comprising: - a set of edge profiles, intended to be fixed to a frame; - a set of load-bearing profiles, intended to be attached to suspension cables; - a set of spacer profiles, arranged to connect an edge profile to a load-bearing profile or arranged to connect two load-bearing profiles together; - each edge profile, each load-bearing profile, and each spacer profile being fitted with a base profile comprising: at least one support edge, intended to receive an edge of a slab, and extending along a longitudinal axis; a groove, extending under the supporting edge along an axis parallel to the longitudinal axis; the suspended ceiling including an anti-lifting device, arranged to prevent lifting of the edge of the slab; remarkable in that the anti-lifting device comprises: - a first part, mounted inside the throat; - a second part, elastically deformable, rotationally fixed to the first part; and in that the anti-lift device is rotationally mobile within the groove around a vertical axis between: - an active position, in which the second part is supported against a surface of the slab when the edge of the slab is received by the bearing edge of the base profile; - an inactive position, in which the second part releases said surface of the slab when the edge of the slab is received by the bearing edge of the base profile.

[0010] Thus, the suspended ceiling according to the invention, thanks to such an anti-uplift device, facilitates subsequent dismantling of the slab, as well as its reassembly. The stability of the slab is ensured by the second part of the anti-uplift device in the active position. Dismantling the slab is carried out by first moving the second part of the anti-uplift device from the active position to the inactive position by pivoting it around the vertical axis. Reassembling the slab is followed by moving the second part of the anti-uplift device from the inactive position to the active position, again by pivoting it around the vertical axis. Consequently, unlike the steel wire of the prior art, the The anti-lift device equipping the suspended ceiling according to the invention allows for the subsequent dismantling of the panel by simply pivoting the second part. Furthermore, unlike the clip (or bracket) of the prior art, the stability of a reinstalled panel is easily achieved by pivoting the second part in the opposite direction, without the risk of losing the component as is the case with the clip (or bracket).

[0011] The suspended ceiling according to the invention may include one or more of the following characteristics.

[0012] According to one feature of the invention, the anti-lift device includes an arm arranged to move the anti-lift device from the active position to the inactive position.

[0013] Thus, one advantage provided is to ensure a relocation function in order to facilitate access to the anti-lifting device by an operator.

[0014] According to a feature of the invention, the arm is mounted on the first part of the anti-lift device.

[0015] Thus, one advantage provided is to facilitate the pivoting of the second part of the anti-lift device around the vertical axis.

[0016] According to one feature of the invention, the arm comprises: - a first end, mounted on the first part of the anti-lift device; - a second end, opposite to the first end; The anti-lifting device includes a gripping tab, extending to the second end of the arm.

[0017] Thus, one advantage provided is to facilitate the handling of the anti-lifting device by an operator.

[0018] According to a feature of the invention, the first part of the anti-lift device is fixed in rotation and fixed in translation to the arm.

[0019] Thus, one advantage provided is the ability to control the movement of the anti-lift device via the arm.

[0020] According to one feature of the invention, the first part of the anti-lift device extends along a first axis, and the arm extends along a second axis perpendicular to the first axis.

[0021] Thus, one advantage provided is to reduce the effort required to move the anti-lift device by increasing the distance between the point of application of the forces and the pivot point (at constant arm length).

[0022] According to one feature of the invention, the base profile includes an additional support edge extending along an axis parallel to the longitudinal axis along which the support edge extends, and the arm is arranged to rest along the additional support edge when the anti-lift device is in the active position.

[0023] Thus, one advantage provided is to facilitate the concealment and integration of the arm within the suspended ceiling.

[0024] According to one feature of the invention, the first part of the anti-lift device is mounted to slide along the groove.

[0025] Thus, one advantage provided is the ability to easily adjust the position of the anti-lifting device in order to obtain satisfactory stability of the slab.

[0026] According to one feature of the invention, the anti-uplift device comprises a connecting part arranged to link the first and second parts; the second part of the anti-uplift device comprising: - a straight portion, proximal to the connecting part; - a curved portion, distal to the connecting part; the curved portion having a convex surface in contact with a surface of the slab when the anti-uplift device is in the active position; the curved portion freeing said surface of the slab when the anti-uplift device is in the inactive position.

[0027] Thus, an advantage provided by such a curved portion with a convex surface is to effectively dampen vibrations (for example caused by forced ventilation or air currents) and to limit structural noise.

[0028] According to one feature of the invention, the first part of the anti-lift device comprises a stop member arranged to block the anti-lift device in vertical translation against the support edge.

[0029] Thus, one advantage provided is to prevent the anti-lifting device from being expelled outside the throat, in particular during a forced lifting of the slab by an operator.

[0030] Definitions

[0031] - The term "suspended ceiling" can also be referred to as "false" ceiling ".

[0032] - By "elastically deformable", it is meant that the second part of the device anti-uplift can deform reversibly under the action of mechanical stresses below the elastic limit, that is to say that the second part of the anti-uplift device can return to its initial shape when the mechanical stresses cease. Brief description of the drawings

[0033] Other features and advantages will become apparent in the detailed description of different embodiments of the invention, the description being accompanied by examples and references to the accompanying drawings.

[0034] [Fig.1] is a schematic perspective view of a suspended ceiling according to the invention.

[0035] [Fig.2] is a partial schematic perspective view of a suspended ceiling According to the invention, illustrating a spacer profile connecting an edge profile to a load-bearing profile. Two anti-uplift devices are visible: a first anti-uplift device is fitted to the base profile of the spacer profile and a second anti-uplift device is fitted to the base profile of the edge profile.

[0036] [Fig.3] is a partial schematic perspective view of a suspended ceiling according to The invention illustrates two spacer profiles, each with a base profile that receives an edge of a slab. Each base profile is equipped with an anti-uplift device. The anti-uplift device in the upper left is moving from the active position to the inactive position. The anti-uplift device in the lower right is in the inactive position.

[0037] [Fig.4] is a schematic perspective view of an anti-uplift device equipping a suspended ceiling according to the invention.

[0038] [Fig.5] is a partial schematic perspective view of a suspended ceiling according to the invention, illustrating an anti-lift device in active position equipping a base profile of a spacer profile.

[0039] [Fig.6] is a partial schematic perspective view of a suspended ceiling according to the invention, illustrating an anti-lift device in active position equipping a base profile.

[0040] [Fig.7] is a partial schematic perspective view of a suspended ceiling according to the invention, illustrating an anti-lifting device in an inactive position equipping a base profile.

[0041] [Fig.8] includes partial schematic perspective views of a ceiling suspended according to the invention, illustrating from left to right the progressive transition from the active position to the inactive position of an anti-lift device equipping a base profile, up to the removal of the slab.

[0042] It should be noted that the drawings described above are schematic and are not necessarily to scale for the sake of legibility and to simplify their understanding. In particular, the slabs are locally perforated or partially represented in order to make visible elements of an anti-uplift device. Detailed description of embodiments

[0043] Identical elements or elements performing the same function shall bear the same references for the different embodiments, for the sake of simplification.

[0044] An object of the invention is a suspended ceiling 1, comprising: - a set of PR edge profiles, intended to be fixed to a frame 2; - a set of PP load-bearing profiles, intended to be attached to 3 suspension cables; - a set of PE spacer profiles, arranged to connect a PR edge profile to a PP carrier profile or arranged to connect two PP carrier profiles together.

[0045] Each edge profile PR, each load-bearing profile PP, and each spacer profile PE are fitted with a base profile 4 comprising: - at least one support edge 40, intended to receive an edge of a slab 5, and extending along a longitudinal axis Al; - a groove 41, extending under the bearing edge 40 along an axis A2 parallel to the longitudinal axis Al.

[0046] The suspended ceiling 1 includes an anti-lifting device 6, arranged to prevent lifting of the edge of the slab 5.

[0047] The anti-lift device 6 comprises: - a first part 60, mounted inside the gorge 41; - a second part 61, elastically deformable, rotationally fixed to the first part 60.

[0048] The anti-lifting device 6 is rotationally mobile inside the groove 41 around a vertical axis Z between: - an active position, in which the second part 61 is supported against a surface of the slab 5 when the edge of the slab 5 is received by the bearing edge 40 of the base profile 4; - an inactive position, in which the second part 61 releases said surface of the slab 5 when the edge of the slab 5 is received by the bearing edge 40 of the base profile 4.

[0049] Edge profiles

[0050] The PR edge profiles are intended to be fixed to a frame 2, such as a partition or wall. The PR edge profiles provide both an aesthetic function and a stable support for the suspended ceiling 1. The PR edge profiles are preferably made of a metallic material such as steel.

[0051] Load-bearing profiles

[0052] The PP load-bearing profiles are intended to be attached to hangers 3. The PP load-bearing profiles are designed to support the weight of the tiles 5 (or panels) composing the suspended ceiling 1. In other words, the PP load-bearing profiles form a robust platform to receive the tiles 5 composing the suspended ceiling 1. The PP load-bearing profiles are preferably made of a metallic material such as steel.

[0053] Spacer profiles

[0054] The PE spacer profiles are arranged to connect an edge profile PR to a load-bearing profile PP. The PE spacer profiles are arranged to connect two profiles PP carriers between each other. PE spacer profiles are preferably made of a metallic material such as steel.

[0055] Base profiles

[0056] Each edge profile PR is provided with a base profile 4. Each carrier profile PP is provided with a base profile 4. Each spacer profile PE is also provided with a base profile 4. The base profiles 4 are preferably made of a metallic material such as aluminium.

[0057] The base profile 4 comprises: - at least one support edge 40, intended to receive an edge of a slab 5, and extending along a longitudinal axis Al; - a groove 41, extending under the bearing edge 40 along an axis A2 parallel to the longitudinal axis AL

[0058] The base profile 4 may include an additional bearing edge 40' extending along an axis Al' parallel to the longitudinal axis Al along which the bearing edge 40 extends. The additional bearing edge 40' extends above the bearing edge 40, in the vicinity of a median position of the base profile 4. The bearing edge 40, for its part, extends in a lateral position of the base profile 4. In other words, the additional bearing edge 40' forms a step with respect to the bearing edge 40.

[0059] Anti-lift device

[0060] Each base profile 4 is equipped with an anti-lifting device 6, arranged to prevent lifting of the edge of the corresponding slab 5.

[0061] The anti-lift device 6 comprises: - a first part 60, mounted inside the gorge 41; - a second part 61, elastically deformable, rotationally fixed to the first part 60.

[0062] The anti-lifting device 6 is rotationally mobile within the groove 41 about a vertical axis Z between: - an active position, in which the second part 61 is supported against a surface of the slab 5 when the edge of the slab 5 is received by the bearing edge 40 of the base profile 4; - an inactive position, in which the second part 61 releases said surface of the slab 5 when the edge of the slab 5 is received by the bearing edge 40 of the base profile 4.

[0063] The first part 60 of the anti-lift device 6 is advantageously mounted to slide along the groove 4L. In other words, the first part 60 of the anti-lift device 6 is advantageously mounted to slide along the axis A2. The first part 60 of the anti-lift device 6 advantageously comprises a stop element 600 arranged to block the anti-lift device 6 in vertical translation against the support edge 40.

[0064] The anti-lift device 6 advantageously comprises an arm 62 arranged to move the anti-lift device 6 from the active position to the inactive position. The arm 62 is advantageously mounted on the first part 60 of the anti-lift device 6. The arm 62 advantageously comprises: - a first end 620, mounted on the first part 60 of the anti-lifting device 6; - a second end 621, opposite the first end 620.

[0065] The anti-lifting device 6 advantageously includes a gripping tab 63, extending to the second end 621 of the arm 62.

[0066] The first part 60 of the anti-lift device 6 is advantageously rotationally and translationally fixed to the arm 62. The first part 60 of the anti-lift device 6 extends along a first axis 60A, and the arm 62 advantageously extends along a second axis 62A perpendicular to the first axis 60A. The stop member 600 advantageously extends at the base of the first part 60 of the anti-lift device, in a direction perpendicular to the first axis 60A.

[0067] The arm 62 is advantageously arranged to rest along the additional support edge 40' when the anti-lift device 6 is in the active position. The arm 62 is positioned under the slab 5 when the anti-lift device 6 is moved from the active position to the inactive position, in order to easily remove the slab 5.

[0068] The anti-lift device 6 advantageously comprises a connecting portion PL arranged to link the first and second portions 60, 61. The second portion 61 of the anti-lift device 6 advantageously comprises: - a straight portion 610, proximal to the PL connecting part; - a curved portion 611, distal to the PL connecting part.

[0069] More specifically, the straight portion 610 is straight when the anti-lift device 6 is in the inactive position. The straight portion 610 is slightly curved when the anti-lift device 6 is in the active position. The curved portion 611 remains curved, regardless of whether the anti-lift device 6 is in the active or inactive position.

[0070] The curved portion 611 advantageously has a convex surface bearing against a surface of the slab 5 when the anti-uplift device 6 is in the active position. The curved portion 611 releases said surface of the slab 5 when the anti-uplift device 6 is in the inactive position.

[0071] The invention is not limited to the embodiments described. A person skilled in the art is able to consider their technically operative combinations, and to substitute equivalents for them.

Claims

Demands

1. Suspended ceiling (1), comprising: - a set of edge profiles (PR), intended to be fixed to a frame (2); - a set of load-bearing profiles (PP), intended to be attached to hangers (3); - a set of spacer profiles (PE), arranged to connect an edge profile (PR) to a load-bearing profile (PP) or arranged to connect two load-bearing profiles (PP) to each other; - each edge profile (PR), each load-bearing profile (PP), and each spacer profile (PE) being provided with a base profile (4) comprising: at least one bearing edge (40), intended to receive an edge of a slab (5), and extending along a longitudinal axis (Al); a groove (41), extending under the bearing edge (40) along an axis (A2) parallel to the longitudinal axis (Al); the suspended ceiling (1) comprising an anti-uplift device (6), arranged to prevent uplift of the edge of the slab (5);characterized in that the anti-lift device (6) comprises: - a first part (60), mounted inside the groove (41); - a second part (61), elastically deformable, rotationally fixed to the first part (60); and in that the anti-lift device (6) is rotationally mobile inside the groove (41) about a vertical axis (Z) between: - an active position, in which the second part (61) is bearing against a surface of the slab (5) when the edge of the slab (5) is received by the bearing edge (40) of the base profile (4); - an inactive position, in which the second part (61) releases said surface of the slab (5) when the edge of the slab (5) is received by the bearing edge (40) of the base profile (4).

2. Ceiling (1) suspended according to claim 1, wherein the anti-lift device (6) comprises an arm (62) arranged to move the anti-lift device (6) from the active position to the inactive position.

3. Ceiling (1) suspended according to claim 2, in which the arm (62) is mounted on the first part (60) of the anti-lift device (6).

4. Ceiling (1) suspended according to claim 2 or 3, in which the arm (62) comprises: - a first end (620), mounted on the first part (60) of the anti-lift device (6); - a second end (621), opposite the first end (620); the anti-lift device (6) comprises a gripping tab (63), extending to the second end (621) of the arm (62).

5. Ceiling (1) suspended according to any one of claims 2 to 4, wherein the first part (60) of the anti-lift device (6) is rotationally and translationally fixed to the arm (62).

6. Ceiling (1) suspended according to any one of claims 2 to 5, wherein the first part (60) of the anti-uplift device (6) extends along a first axis (60A), and the arm (62) extends along a second axis (62A) perpendicular to the first axis (60A).

7. Ceiling (1) suspended according to any one of claims 2 to 6, wherein the base profile (4) comprises an additional support edge (40') extending along an axis (Al') parallel to the longitudinal axis (Al) along which the support edge (40) extends, and the arm (62) is arranged to rest along the additional support edge (40') when the anti-lift device (6) is in the active position.

8. Ceiling (1) suspended according to any one of claims 1 to 7, wherein the first part (60) of the anti-uplift device (6) is mounted to slide along the groove (41).

9. A suspended ceiling (1) according to any one of claims 1 to 8, wherein the anti-uplift device (6) comprises a connecting portion (PL) arranged to connect the first and second portions (60, 61); the second portion (61) of the anti-uplift device (6) comprising: - a straight portion (610), proximal to the connecting portion (PL); - a curved portion (611), distal to the connecting portion (PL); the curved portion (611) having a convex surface bearing against a surface of the slab (5) when the anti-uplift device (6) is in the active position; the curved portion (611) releasing 11 said surface of the slab (5) when the anti-uplift device (6) is in the inactive position.

10. Ceiling (1) suspended according to any one of claims 1 to 9, wherein the first part (60) of the anti-uplift device (6) comprises a stop member (600) arranged to block the anti-uplift device (6) in vertical translation against the support edge (40).

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