Suspended ceiling with selective dismantling

Abstract

Suspended ceiling with selective dismantling via a hook (6) fitted to the first and second ends (E1, E2) of spacer profiles (PE), the hook (6) comprising a first part having a locking position and an unlocking position on a base profile (4) belonging to an edge profile (PR) or a load-bearing profile (PP), the hook (6) comprising a second part movable in rotation about a vertical axis between an assembly position and a dismantling position. Figure 2

Description

Title of the invention: Suspended ceiling with selective dismantling 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, in particular from document EP 0 205 673 A1, 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; each spacer profile having first and second opposite ends.

[0004] Each edge profile, each load-bearing profile, and each spacer profile are provided with a base profile comprising at least one bearing edge, intended to receive an edge of a slab.

[0005] The first and second ends of each spacer profile can each be fitted with a tenon extending beyond the metal web of the corresponding spacer profile. Each edge profile or each load-bearing profile has a metal web with a slot, forming a mortise, arranged to cooperate with the tenon at one end of a spacer profile. Thus, each spacer profile can connect an edge profile to a load-bearing profile, or connect two load-bearing profiles to each other, by engaging the tenons in the corresponding slots.

[0006] Such a suspended ceiling in the prior art is not entirely satisfactory insofar as its dismantling requires starting from a lateral area where an edge profile is present. It is not possible, for example, to dismantle the suspended ceiling from a central area due to the mortise and tenon jointing of the spacer profiles to the edge profiles and the load-bearing profiles.

[0007] Access to a localized area of ​​the plenum (i.e. the space between the suspended ceiling and the surface to which the suspended ceiling is fixed) can therefore be tedious and require a prolonged intervention time. Description of the invention

[0008] 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 spacer profile having first and second opposite ends; - 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 slot, arranged on the supporting edge, and extending along an axis transverse to the longitudinal axis; a groove, extending under the supporting edge along an axis parallel to the longitudinal axis; the first and second ends of each spacer profile are each fitted with a hook comprising first and second parts; the first part of the hook having: - a locking position, in which the first part of the hook is engaged in the slot of a base profile belonging to a carrier profile or an edge profile, so that the hook is blocked in translation along the groove of said base profile; - an unlocking position, in which the first part of the hook is released from said slot so that the hook is movable in translation along said groove; the second part of the hook being movable in rotation about a vertical axis between: - an assembly position, in which the second part of the hook includes a stop element, extending into the groove and under the bearing edge of said base profile, so that the hook is blocked in vertical translation against said bearing edge; and - a dismantling position, in which the stop member is released from said support edge so that the hook is movable in vertical translation.

[0009] Thus, such a suspended ceiling according to the invention can be easily dismantled from any area, particularly from a central area, without requiring a mortise and tenon joint of the prior art. In other words, the dismantling of the suspended ceiling can be selective thanks to such a hook. More precisely, the selective dismantling of the suspended ceiling is carried out by tilting the first part of the hook from the locking position to the unlocking position, then by tilting the second part of the hook from the mounting position to the dismounting position.

[0010] The suspended ceiling according to the invention may include one or more of the following characteristics.

[0011] According to one feature of the invention, the first part of the hook comprises a removable member engaged in the slot of the base profile, the removable member having: - an active position, in which the removable part is mechanically attached to the first part of the hook in the locked position; - an inactive position, in which the removable part is mechanically detached from the first part of the hook in the unlocking position.

[0012] Thus, an advantage provided by the removable organ is to obtain a first part of the bistable hook, with a stable and distinct locking position and unlocking position.

[0013] According to a feature of the invention, the removable part is separable so as to switch from the active position to the inactive position.

[0014] Thus, one advantage provided is the ability to easily switch the first part of the hook from the locking position to the unlocking position, for example using pliers.

[0015] According to a feature of the invention, the second part of the hook is elastically deformable so as to pivot from the mounting position to the dismounting position by bending around the vertical axis.

[0016] Thus, one advantage provided is the ability to manually switch (without a dedicated tool) the second part of the hook from the mounting position to the dismounting position.

[0017] According to one feature of the invention, the second part of the hook is made of a material having weakening zones arranged to allow flexing of the material around the vertical axis from the mounting position to the dismounting position.

[0018] Thus, an advantage provided by the weakening zones is the ability to adjust the amplitude of the bending according to the Young's modulus of the material in which the second part of the hook is made.

[0019] According to one feature of the invention, the second part of the hook comprises: - a first leg; - a second leg, equipped with the stop mechanism; - an elastically deformable connecting portion, arranged to connect the first and second legs in such a way as to allow flexion of the second leg around the vertical axis from the assembly position to the disassembly position.

[0020] Thus, one advantage provided is to obtain excellent maneuverability of the second part of the hook from the mounting position to the dismounting position.

[0021] According to one feature of the invention, the suspended ceiling comprises a set of connecting members, each connecting member being arranged to connect one end, among the first and second ends of each spacer profile, to an edge profile or to a load-bearing profile, the hook equipping said end being mounted on the connecting member.

[0022] Thus, one advantage provided by such connecting elements is the ability to shorten the spacer profile in order to make up for any length discrepancies. In other words, the connecting elements (equipped with hooks) and the ends of the spacer profiles are not a single piece, so it is possible to cut the spacer profile to fit its shortened ends with the connecting elements.

[0023] According to a feature of the invention: - each spacer profile has a metal core with a series of pilot holes regularly spaced according to the length of the corresponding spacer profile; - each connecting element is screwed into a pilot hole in the metal core of the corresponding spacer profile.

[0024] Thus, one advantage provided is the ability to cut a spacer profile to make up for any length difference while ensuring the assembly of a connecting element according to the final length of the spacer profile.

[0025] According to one feature of the invention, each connecting member comprises: - a plate, extending to said end of the corresponding spacer profile, opposite at least one pilot hole; - an oblong light, arranged within the plate to provide access to a pilot hole.

[0026] Thus, one advantage provided is to facilitate the mounting of the connecting element on the spacer profile.

[0027] According to a feature of the invention: - the metal core is made of steel with a thickness greater than 0.6 mm; - Each connecting element is screwed into a pilot hole in the metal core by a Parker-type fixing screw.

[0028] Thus, one advantage provided is to obtain excellent grip of the connecting member on the spacer profile.

[0029] Definitions

[0030] - The term "suspended ceiling" can also be referred to as "false" ceiling ".

[0031] - By "transverse axis", we mean that the axis along which the slot extends is: (i) oblique to the longitudinal axis along which the supporting edge extends, or (ii) perpendicular to the longitudinal axis along which the supporting edge extends. In other words, the transverse axis is not parallel to the longitudinal axis.

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

[0033] - By "platinum" is meant a plate, preferably metallic, having a flat surface. Brief description of the drawings

[0034] 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.

[0035] [Fig.1] is a schematic perspective view of a suspended ceiling according to the invention.

[0036] [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.

[0037] [Fig.3] is a schematic perspective view of a spacer profile connecting two load-bearing profiles are shown partially for clarity.

[0038] [Fig.4] is a schematic perspective view of a spacer profile whose Each end is fitted with a connecting device for a profile.

[0039] [Fig.5] is a schematic exploded perspective view of a spacer profile one end of which is fitted with a hook and the opposite end of which is fitted with a connecting member, the connecting member being fitted with a hook.

[0040] [Fig.6] is a schematic perspective view at an enlarged scale of an organ of connection.

[0041] [Fig.7] is a schematic perspective view at enlarged scale of a hook.

[0042] [Fig.8] is a schematic view analogous to [Fig.7], shown under another corner.

[0043] [Fig.9] is a schematic view analogous to [Fig.8], illustrating a removable part breakable during mechanical detachment from the hook.

[0044] [Fig. 10] is a schematic perspective view (in transparency) of a hook cooperating with a base profile. The base profile is partially shown for the sake of readability.

[0045] [Fig. 11] is a schematic perspective view (in transparency) of a movable hook in translation along the groove of a base profile, when the first part of the hook is in the unlocked position.

[0046] [Fig. 12] is a schematic top view at enlarged scale of a hook whose first part is in the locking position and whose second part is in the mounting position.

[0047] [Fig. 13] is a schematic view analogous to [Fig. 12], the first part of the hook being in the locking position, the second part of the hook being in the dismantling position.

[0048] [Fig. 14] is a schematic side view at enlarged scale of a hook whose first part is in the locking position and whose second part is in the mounting position.

[0049] [Fig. 15] is a schematic view analogous to [Fig. 14], the first part of the hook being in the locking position, the second part of the hook being in the dismantling position.

[0050] It should be noted that the drawings described above are schematic, and are not necessarily to scale for the sake of readability and to simplify their understanding. Detailed description of the implementation methods

[0051] Identical elements or elements performing the same function shall bear the same references for the different embodiments, for the sake of simplification.

[0052] 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 an edge profile PR to a carrier profile PP or arranged to connect two carrier profiles PP together; each PE spacer profile having first and second ends El, E2 opposite; - each edge profile PR, each load-bearing profile PP, and each spacer profile PE being 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 slot 41, arranged on the support edge 40, and extending along an axis A2 transverse to the longitudinal axis Al; a groove 42, extending under the bearing edge 40 along an axis A3 parallel to the longitudinal axis Al; The first and second ends E1, E2 of each PE spacer profile are each fitted with a hook 6 comprising first and second parts 60, 61; the first part 60 of the hook 6 having: - a locking position, in which the first part 60 of the hook 6 is engaged in the slot 41 of a base profile 4 belonging to a carrier profile PP or to an edge profile PR, so that the hook 6 is blocked in translation along the groove 42 of said base profile PE; - an unlocking position, in which the first part 60 of the hook 6 is released from said slot 41 so that the hook 6 is movable in translation along said groove 42; the second part 61 of the hook 6 being mobile in rotation around a vertical axis Z between: - a mounting position, in which the second part 61 of the hook 6 comprises a stop member 610, extending into the groove 42 and under the bearing edge 40 of said base profile 4, so that the hook 6 is locked in vertical translation against said bearing edge 40; and - a dismantling position, in which the stop member 610 is released from said support edge 40 so that the hook 6 is movable in vertical translation.

[0053] Edge profiles

[0054] 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.

[0055] Load-bearing profiles

[0056] 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.

[0057] Spacer profiles

[0058] 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 load-bearing profiles PP to each other.

[0059] Each PE spacer profile has first and second ends El, E2 opposite.

[0060] Each PE spacer profile advantageously comprises a metal web 7 having a series of pilot holes 70 regularly spaced according to the length of the corresponding PE spacer profile. The metal web 7 is advantageously made of steel having a thickness greater than 0.6 mm.

[0061] Base profiles

[0062] Each edge profile PR is provided with a base profile 4. Each load-bearing profile PP is provided with a base profile 4. Each spacer profile PE is also provided with a base profile 4.

[0063] 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 slot 41, arranged on the support edge 40, and extending along an axis A2 transverse to the longitudinal axis Al; - a groove 42, extending under the bearing edge 40 along an axis A3 parallel to the longitudinal axis AL

[0064] The base profile 4 may have two slots 41 arranged on the bearing edge 40, and extending along an axis A2 transverse to the longitudinal axis AL. The two slots 41 are advantageously arranged on the bearing edge 40 according to an axial symmetry whose axis of symmetry is median to the two slots 41 and perpendicular to the longitudinal axis AL. Such symmetry of the two slots 41 allows their use when the base profile 4 undergoes a vertical rotation of 180°.

[0065] The base profile 4 has at least one notch 43 arranged on the bearing edge 40 arranged to receive an area of ​​the second part 61 of the hook 6 so as to improve the stability of the mounting position.

[0066] The base profiles 4 are preferably made of a metallic material such as aluminium.

[0067] Hook

[0068] The first and second ends El, E2 of each PE spacer profile are each provided with a hook 6 comprising first and second parts 60, 61.

[0069] The first part 60 of hook 6 has: - a locking position, in which the first part 60 of the hook 6 is engaged in the slot 41 of a base profile 4 belonging to a carrier profile PP or to an edge profile PR, so that the hook 6 is blocked in translation along the groove 42 of said base profile 4; - an unlocking position, in which the first part 60 of the hook 6 is released from said slot 41 so that the hook 6 is movable in translation along said groove 42.

[0070] The first part 60 of the hook 6 advantageously comprises a removable member 600 engaged in said slot 41 of the base profile 4. The removable member 600 has: - an active position, in which the removable part 600 is mechanically attached to the first part 60 of the hook 6 in the locking position; - an inactive position, in which the removable part 600 is mechanically detached from the first part 60 of the hook 6 in the unlocked position.

[0071] According to one embodiment, the removable part 600 is breakable (for example, using pliers) so as to switch from the active position to the inactive position.

[0072] The second part 61 of the hook 6 is rotatable about a vertical axis Z between: - a mounting position, wherein the second part 61 of the hook 6 comprises a stop member 610, extending into the groove 42 and under the bearing edge 40 of said base profile 4 (belonging to a carrier profile PP or an edge profile PR), so that the hook 6 is locked in vertical translation against said bearing edge 40; and - a dismantling position, in which the stop member 610 is released from said support edge 40 so that the hook 6 is movable in vertical translation.

[0073] The second part 61 of the hook 6 is advantageously elastically deformable so as to switch from the mounting position to the dismounting position by bending around the vertical axis Z.

[0074] According to one embodiment, the second part 61 of the hook 6 is made of a material having weakening zones 611 (e.g. recesses) arranged to allow flexing of the material around the vertical axis Z from the mounting position to the dismounting position.

[0075] The second part 61 of hook 6 advantageously comprises: - a first leg J1; - a second leg J2, equipped with the stop element 610; - an elastically deformable connecting portion PL, arranged to connect the first and second legs J1, J2 in such a way as to allow the second leg J2 to bend around the vertical axis Z from the mounting position to the dismounting position.

[0076] The second leg J2 is preferably mounted on the first part 60 of the hook 6. The first leg J1 may be provided with an additional stop element 610' extending in the groove 42 under an additional edge 40' of the base profile 4. This additional stop element 610' improves the stability of the mounting position of the second part 61 of the hook 6. When the second part 61 of the hook 6 is in the unlocked position, the additional stop element 610' is released from the additional edge 40'.

[0077] Connecting elements

[0078] The suspended ceiling 1 advantageously comprises a set of connecting members 8, each connecting member 8 being arranged to connect one end, among the first and second ends El, E2 of each PE spacer profile, to an edge profile PR or to a PP carrier profile.

[0079] The hook 6 fitted to said end is mounted on the connecting member 8, for example by crimping. In this respect, the hook 6 may be provided with a housing 62 designed to receive a crimp nut 620.

[0080] Each connecting member 8 is advantageously screwed into a pilot hole 70 of the metal core 7 of the corresponding PE spacer profile, preferably by means of a Parker screw type fixing screw V.

[0081] Each connecting element 8 advantageously comprises: - a plate 80, extending to said end of the corresponding PE spacer profile, opposite at least one pilot hole 70; - an oblong light 81, arranged within the plate 80 to free up access to a pilot hole 70.

[0082] 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

1. Demands 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 carrier profile (PP) or arranged to connect two carrier profiles (PP) together; each spacer profile (PE) having first and second ends (El, E2) opposite each other; - each edge profile (PR), each load-bearing profile (PP), and each spacer profile (PE) being 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 slot (41), arranged on the support edge (40), and extending along an axis (A2) transverse to the longitudinal axis (Al); a groove (42), extending under the bearing edge (40) along an axis (A3) parallel to the longitudinal axis (Al); the first and second ends (El, E2) of each spacer profile (PE) are each provided with a hook (6) comprising first and second parts (60, 61); the first part (60) of the hook (6) having: - a locking position, in which the first part (60) of the hook (6) is engaged in the slot (41) of a base profile (4) belonging to a carrier profile (PP) or to an edge profile (PR), so that the hook (6) is blocked in translation along the groove (42) of said base profile (4); - an unlocking position, in which the first part (60) of the hook (6) is released from said slot (41) so that the hook (6) is movable in translation along said groove (42); the second part (61) of the hook (6) being movable in rotation about a vertical axis (Z) between: - a mounting position, in which the second part (61) of the hook (6) comprises a stop member (610), extending into the groove (42) and under the bearing edge (40) of said base profile (4), of so that the hook (6) is locked in vertical translation against said support edge (40); and - a disassembly position, in which the stop member (610) is released from said support edge (40) so that the hook (6) is movable in vertical translation.

2. Ceiling (1) suspended according to claim 1, wherein the first part (60) of the hook (6) comprises a removable member (600) engaged in the slot (41) of the base profile (4), the removable member (600) having: - an active position, in which the removable member (600) is mechanically connected to the first part (60) of the hook (6) in the locking position; - an inactive position, in which the removable member (600) is mechanically disconnected from the first part (60) of the hook (6) in the unlocking position.

3. Ceiling (1) suspended according to claim 2, wherein the removable member (600) is breakable so as to switch from the active position to the inactive position.

4. Ceiling (1) suspended according to any one of claims 1 to 3, wherein the second part (61) of the hook (6) is elastically deformable so as to pivot from the mounting position to the dismantling position by bending around the vertical axis (Z).

5. Ceiling (1) suspended according to claim 4, wherein the second part (61) of the hook (6) is made of a material having weakening zones (611) arranged to permit flexing of the material about the vertical axis (Z) from the mounting position to the dismantling position.

6. Ceiling (1) suspended according to claim 4 or 5, wherein the second part (61) of the hook (6) comprises: - a first leg (J1); - a second leg (J2), provided with the stop member (610); - an elastically deformable connecting portion (PL), arranged to connect the first and second legs (J1, J2) so as to allow flexion of the second leg (J2) around the vertical axis (Z) from the mounting position to the dismantling position.

7. A suspended ceiling (1) according to any one of claims 1 to 6, comprising a set of connecting members (8), each connecting member (8) being arranged to connect a end, among the first and second ends (El, E2) of each spacer profile (PE), to an edge profile (PR) or to a carrier profile (PP), the hook (6) equipping said end being mounted on the connecting member (8).

8. Suspended ceiling (1) according to claim 7, wherein: - each strut profile (PE) has a metal web (7) having a series of pilot holes (70) regularly spaced from each other along the length of the corresponding strut profile (PE); - each connecting member (8) is screwed into a pilot hole (70) of the metal web (7) of the corresponding strut profile (PE).

9. Ceiling (1) suspended according to claim 8, in which each connecting member (8) comprises: - a plate (80), extending to said end of the corresponding spacer profile (PE), opposite at least one pilot hole (70); - an oblong opening (81), arranged within the plate (80) to provide access to a pilot hole (70).

10. Suspended ceiling (1) according to claim 8 or 9, wherein: - the metal core (7) is made of steel having a thickness greater than 0.6 mm; - each connecting member (8) is screwed into a pilot hole (70) in the metal core (7) by a Parker screw type fixing screw (V).

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