Selectively removable suspended ceiling

Abstract

Suspended ceiling with selective disassembly using a hook (6) fitted to 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 to a carrier profile (PP), the hook (6) comprising a second part movable in rotation about a vertical axis between a mounting position and a disassembly 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 called false ceilings.

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

[0003] A suspended ceiling known from the state of the 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 supporting profiles, intended to be attached to hangers; - a set of spacer profiles, arranged to connect an edge profile to a supporting profile or arranged to connect two supporting profiles together; each spacer profile having first and second opposite ends.

[0004] Each edge profile, each carrier 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.

[0005] The first and second ends of each spacer profile may each be provided with a tenon, extending projecting from the metal core of the corresponding spacer profile. Each edge profile or each carrier profile comprises a metal core provided with a slot, forming a mortise, arranged to cooperate with the tenon of one end of a spacer profile. Thus, each spacer profile may connect an edge profile to a carrier profile, or connect two carrier profiles together, by engaging the tenons in the corresponding slots.

[0006] Such a suspended ceiling of the state of the art is not entirely satisfactory insofar as its dismantling requires starting from a lateral zone where an edge profile is present. It is not possible, for example, to dismantle the suspended ceiling from a central zone due to the tenon / mortise assembly of the spacer profiles to the edge profiles and the supporting 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. Statement of the invention

[0008] The invention aims to remedy all or part of 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 supporting profiles, intended to be attached to hangers; - a set of spacer profiles, arranged to connect an edge profile to a supporting profile or arranged to connect two supporting profiles together; each spacer profile having first and second opposite ends; - each edge profile, each supporting profile, and each spacer profile being 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 slot, arranged on the bearing edge, and extending along an axis transverse to the longitudinal axis; a groove, extending under the bearing edge along an axis parallel to the longitudinal axis; the first and second ends of each spacer profile are each provided 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 to 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: - a mounting position, in which the second part of the hook comprises a stop member, extending in 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 disassembly position, in which the stop member is released from said bearing 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, in particular from a central area, without the need for a tenon / mortise assembly of the state of the 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 tilting the second part of the hook from the mounting position to the dismounting position.

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

[0011] According to a characteristic 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 member is mechanically secured to the first part of the hook in the locking position; - an inactive position, in which the removable member is mechanically detached from the first part of the hook in the unlocked position.

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

[0013] According to a characteristic of the invention, the removable member is breakable so as to switch from the active position to the inactive position.

[0014] Thus, an advantage provided is to be able to easily tilt the first part of the hook from the locking position to the unlocking position, for example using pliers.

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

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

[0017] According to a characteristic of the invention, the second part of the hook is made of a material comprising weakening zones arranged to allow bending 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 to be able to adjust the amplitude of the bending according to the Young's modulus of the material from which the second part of the hook is made.

[0019] According to a characteristic of the invention, the second part of the hook comprises: - a first leg; - a second leg, fitted with the stop member; - an elastically deformable connecting portion, arranged to connect the first and second legs so as to allow bending of the second leg around the vertical axis from the mounting position to the dismounting position.

[0020] Thus, an 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 a characteristic 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 supporting profile, the hook providing said end being mounted on the connecting member.

[0022] Thus, an advantage provided by such connecting members is to be able to shorten the spacer profile in order to make up for any length. In other words, the connecting members (equipped with hooks) and the ends of the spacer profiles are not in one piece, so that it is possible to cut the spacer profile in order to equip its shortened ends with the connecting members.

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

[0024] Thus, an advantage provided is to be able to cut a spacer profile to carry out any length adjustment while ensuring the assembly of a connection member according to the final length of the spacer profile.

[0025] According to a characteristic of the invention, each connection member comprises: - a plate, extending at 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, an advantage provided is to facilitate the mounting of the connecting member on the spacer profile.

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

[0028] Thus, an 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 bearing edge extends, or (ii) perpendicular to the longitudinal axis along which the bearing edge extends. In other words, the transverse axis is non-parallel to the longitudinal axis.

[0032] - By "elastically deformable" we mean that the second part of the hook can deform reversibly under the action of mechanical stresses below the elastic limit, i.e. 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 characteristics and advantages will appear in the detailed description of different embodiments of the invention, the description being accompanied by examples and references to the attached drawings.

[0035] [Fig.l] 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 supporting profile.

[0037] [Fig.3] is a schematic perspective view of a spacer profile connecting two supporting profiles between them. The supporting profiles are partially shown for readability.

[0038] [Fig.4] is a schematic perspective view of a spacer profile whose ends are each equipped with a connection member to a profile.

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

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

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

[0042] [Fig.8] is a schematic view similar to [Fig.7], represented in another corner.

[0043] [Fig.9] is a schematic view similar to [Fig.8], illustrating a removable member breakable during mechanical detachment of 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 hook movable 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 on an 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 similar to [Fig. 12], the first part of the hook being in the locking position, the second part of the hook being in the disassembly position.

[0048] [Fig. 14] is a schematic side view on an 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 similar to [Fig. 14], the first part of the hook being in the locking position, the second part of the hook being in the disassembly 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] Elements that are identical or provide the same function will 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 carrier profiles, intended to be attached to hangers 3; - 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 to each other; each PE spacer profile having first and second opposite ends E1, E2; - each PR edge profile, each PP carrier profile, and each PE spacer profile being provided 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 A1; a slot 41, arranged on the bearing 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 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 PP carrier profile or to a PR edge profile, so that the hook 6 is blocked in translation along the groove 42 of said PE base profile; - 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 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 in the groove 42 and under the bearing edge 40 of said base profile 4, so that the hook 6 is blocked in vertical translation against said bearing edge 40; and - a disassembly position, in which the stop member 610 is released from said bearing 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 wall or partition. The PR edge profiles provide both an aesthetic role and a stable support role for the suspended ceiling 1. The PR edge profiles are preferably made of a metallic material such as steel.

[0055] Carrier profiles

[0056] The PP carrier profiles are intended to be attached to hangers 3. The PP carrier profiles are designed to support the weight of the tiles 5 (or panels) making up the suspended ceiling 1. In other words, the PP carrier profiles form a robust platform to receive the tiles 5 making up the suspended ceiling 1. The PP carrier profiles are preferably made of a metallic material such as steel.

[0057] Spacer profiles

[0058] The PE spacer profiles are arranged to connect a PR edge profile to a PP carrier profile. The PE spacer profiles are arranged to connect two PP carrier profiles together.

[0059] Each PE spacer profile has first and second opposite ends E1, E2.

[0060] Each PE spacer profile advantageously comprises a metal core 7 provided with a series of pilot holes 70 regularly spaced apart along the length of the corresponding PE spacer profile. The metal core 7 is advantageously made of a 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 carrier 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 A1; - a slot 41, arranged on the bearing 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 comprise 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 comprises 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 aluminum.

[0067] Hook

[0068] The first and second ends E1, 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 the 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 PP carrier profile or to a PR edge profile, 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 member 600 is mechanically secured to the first part 60 of the hook 6 in the locking position; - an inactive position, in which the removable member 600 is mechanically detached from the first part 60 of the hook 6 in the unlocked position.

[0071] According to one embodiment, the removable member 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 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 in the groove 42 and under the bearing edge 40 of said base profile 4 (belonging to a carrier profile PP or to an edge profile PR), so that the hook 6 is blocked in vertical translation against said bearing edge 40; and - a disassembly position, in which the stop member 610 is released from said bearing 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 tilt 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 comprising weakening zones 611 (eg recesses) arranged to allow bending of the material around the vertical axis Z from the mounting position to the dismounting position.

[0075] The second part 61 of the hook 6 advantageously 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 disassembly 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 member 610' extending in the groove 42 under an additional edge 40' of the base profile 4. This additional stop member 610' makes it possible to improve 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 member 610' is released from the additional edge 40'.

[0077] Connection organs

[0078] The suspended ceiling 1 advantageously comprises a set of connection members 8, each connection member 8 being arranged to connect one end, among the first and second ends E1, E2 of each PE spacer profile, to an edge profile PR or to a PP carrier profile.

[0079] The hook 6 providing 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 nut 620 to be crimped.

[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 a fixing screw V of the Parker screw type.

[0081] Each connection member 8 advantageously comprises: - a plate 80, extending at 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 provide access to a pilot hole 70.

[0082] The invention is not limited to the embodiments disclosed. Those skilled in the art are able to consider their technically effective combinations and to substitute equivalents for them.

Claims

1. Claims Suspended ceiling (1), comprising: - a set of edge profiles (PR), intended to be fixed to a frame (2); - a set of supporting profiles (PP), intended to be attached to hangers (3); - a set of spacer profiles (PE), arranged to connect an edge profile (PR) to a supporting profile (PP) or arranged to connect two supporting profiles (PP) to each other; each spacer profile (PE) having first and second opposite ends (El, E2); - each edge profile (PR), each supporting profile (PP), and each spacer profile (PE) being provided 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 bearing 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 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 in 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 disassembly position, in which the stop member (610) is released from said bearing edge (40) so that the hook (6) is movable in vertical translation.

2. Suspended ceiling (1) according to claim 1, in which 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 secured to the first part (60) of the hook (6) in the locking position; - an inactive position, in which the removable member (600) is mechanically detached from the first part (60) of the hook (6) in the unlocking position.

3. Suspended ceiling (1) according to claim 2, in which the removable member (600) is breakable so as to switch from the active position to the inactive position.

4. Suspended ceiling (1) according to one of claims 1 to 3, in which the second part (61) of the hook (6) is elastically deformable so as to tilt from the mounting position to the dismounting position by bending around the vertical axis (Z).

5. Suspended ceiling (1) according to claim 4, in which the second part (61) of the hook (6) is made of a material comprising weakening zones (611) arranged to allow bending of the material around the vertical axis (Z) from the mounting position to the dismounting position.

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

7. Suspended ceiling (1) according to 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) providing said end being mounted on the connection member (8).

8. Suspended ceiling (1) according to claim 7, in which: - each spacer profile (PE) comprises a metal core (7) provided with a series of pilot holes (70) regularly spaced apart along the length of the corresponding spacer profile (PE); - each connecting member (8) is screwed into a pilot hole (70) in the metal core (7) of the corresponding spacer profile (PE).

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

10. Suspended ceiling (1) according to claim 8 or 9, in which: - 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) of the metal core (7) by a fixing screw (V) of the Parker screw type.

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