EP3587692A2

EP3587692A2 - System for partitioning a space

Info

Publication number: EP3587692A2
Application number: EP19182063.8A
Authority: EP
Inventors: Ruggero Grandi
Original assignee: C&g Sas
Current assignee: Grandi Srl
Priority date: 2018-06-25
Filing date: 2019-06-24
Publication date: 2020-01-01
Anticipated expiration: 2039-06-24
Also published as: EP3587692A3; EP3587692B1

Abstract

A system installable in a space (E) at a ceiling (C), comprising at least one longitudinal profile or beam (10) couplable with the ceiling (C), at least one longitudinal conductive guide rail (41') fixable to the profile or beam (10) and that can be power-supplied with electric power supply means and at least one lighting device (40) removably coupled with the longitudinal beam or profile (10) and electrically connected with the longitudinal conductive guide rail (41'). The profile or beam (10) comprises a pair of lateral walls (11, 12) mutually facing each other and an upper wall (13) designated to be faced towards the ceiling (C) mutually cooperating to internally define a compartment (14) open at the bottom to removably receive the lighting device (40); The system further comprises first means (60) for the magnetic coupling of the lighting device (40) and the longitudinal conductive guide rail (41') and
second means (70) for the removable mechanical coupling of the lighting device (40) and of the profile or beam (10), said second coupling means (70) cooperating with the first magnetic coupling means (60).

Description

The present invention generally applies to the field of interior furnishing and it regards a system installable in a space at a ceiling, in particular for offices, museums, shops and the like.

State of the Art

Systems for obtaining false ceilings in a space, for example the so-called "open space" office, a shop, a museum or the like, are known. Such systems generally included a plurality of beams or longitudinal profiles connected to a ceiling. In case there is a false ceiling, a plurality of panels are coupled to the beams.
The bearing beams are suitable to concealingly house a plurality of accessories such as alarms, illumination lights, electric cables, data cables, ducts for air conditioning, partitioning walls or the like.
Possibly, the beams can be of the multifunction type, i.e. such accessories can be removably inserted into the bearing beam so as to enable a user to change the configuration of the space whenever required.
Such known systems can be improved in various aspects, in particular as regards safety.
Furthermore, beams suitable to house lighting devices are known. Such systems comprise magnets for coupling the lighting device to the beam. However, such lighting devices have limited dimensions in that they are particularly light, generally less than 1 kg.

Summary of the invention

An object of the present invention is to at least partly overcome the drawbacks illustrated above, by providing a multifunctional system installable in a space at a ceiling, that is highly functional and inexpensive.
An object of the invention is to provide a system installable in a space that is particularly safe.
An object of the invention is to provide a system installable in a space that allows the use of heavy accessories.
An object of the invention is to provide a system installable in a space that allows to mount a particularly versatile lighting device.
An object of the invention is to provide a system installable in a space that minimises the installation times.
An object of the invention is to provide a system installable in a space that has high aesthetic appeal.
An object of the invention is to provide a system installable in a multifunctional space.
These objects, just like others that will be more apparent hereinafter, are attained by a system installable in a space as described, illustrated and/or claimed herein.
In a first aspect, there may be provided a system installable in a space at a ceiling, comprising:

at least one longitudinal profile or beam couplable with the ceiling;
at least one longitudinal conductive guide rail that can be fixed to said at least one profile or beam and that can be power-supplied with electric power supply means;
at least one lighting device removably coupled with said at least one longitudinal beam or profile and electrically connected with said at least one longitudinal conductive guide rail;

first means for the magnetic coupling of said at least one lighting device and of said at least one longitudinal conductive guide rail;
second means for the removable mechanical coupling of said at least one lighting device and of said at least one profile or beam, said second coupling means cooperating with said first magnetic coupling means.

In a further aspect, irrespective of the above, there may be provided a multifunctional system installable in a space at a ceiling, comprising:

at least one longitudinal profile or beam couplable with the ceiling;
at least one first and one second accessory that perform one or more functions in the space, said at least one first and one second accessory being alternatively and selectively removably couplable with said at least one profile or beam;

means for snap coupling said at least one first and one second accessory with said at least one profile or beam;
safety means removably coupleable with said at least one profile or beam in at least one operative position to prevent the decoupling of said at least one first and one second accessory and said at least one longitudinal beam or profile.

The dependent claims describe advantageous embodiments of the invention.

Brief description of the drawings

Further characteristics and advantages of the invention will be more apparent in light of the detailed description of a preferred but non-exclusive embodiment of a system 1, illustrated by way of non-limiting example with reference to the attached drawings, wherein:

FIGS. 1A and 1B are schematic views of embodiments of a system 1;
FIG. 2 is a schematic view of the electric power supply of a lighting device 40;
FIGS. 3 and 4 are axonometric views of some details of the system 1, in particular FIG. 3 illustrates a beam 10 and FIG. 4 illustrates a lighting device 40;
FIG. 6A is a sectional schematic view of an embodiment of some details of the partitioning system 1, with FIG. 6B showing some enlarged details of FIG. 6A ;
FIG. 7 is a sectional exploded schematic view of another embodiment of some details of the partitioning system 1.

Detailed description of some preferred embodiments

With reference to the mentioned figures, herein described is a system 1 installable in a space E, generally an open space, at a ceiling C or a false ceiling.
Essentially, the system 1 may include one or more longitudinal profiles or beam 10 that can be connected in a per se known manner to the ceiling C. The longitudinal profiles 10 may thus be structural or non-structural. For example, they may be sections, beams or small beams 10.
A plurality of panels 20 of the false ceiling and a plurality of elements 26 for the mutual connection of the panels 20 and the beams 10 may be possibly present.
Once the panels 20 and the beam 10 are connected, the latter may cooperate to define a main extension plane of the false ceiling π.
The beam 10 may have a substantially longitudinal extension defining an axis X and it may comprise a pair of lateral walls 11, 12 facing each other and an upper wall 13 designated to be faced towards the ceiling C.
The lateral walls 11, 12 may extend in respective planes substantially perpendicular to the false ceiling, i.e. they may be substantially perpendicular to the upper wall 13 so as to cooperate in a manner such that the beam 10 is substantially C-shaped section.
It is clear that the lateral walls 11, 12 may be divided into two or more portions, without departing from the scope of protection of the attached claims.
The lateral walls 11, 12 and the upper wall 13 may thus cooperate mutually to define a compartment 14 open at the bottom part to removably receive one or more accessories 30, 40 that perform one or more functions in the space E.
The accessories may be of different types, for example, they may be service accessories such as lighting devices, lights, emergency lights, fire safety alarms, cable ducts, smoke and/or presence detection sensor, speakers and/or the like. Data cables, telephone cables or the like may be possibly inserted into the cable ducts.
Possibly, one or more accessories protection elements operatively coupled with the accessories 30, 40 and/or the beam 10 may be provided for.
Each of the lateral walls 11, 12 of the beam 10 may include an upper edge 1100', 1200' facing towards the ceiling C and a lower edge 1100", 1200" opposite thereto and faced downwards.
The lateral walls 11, 12 may have inner surfaces 110', 120' and outer surfaces 110", 120", the latter being designated to remain facing the panels 20.
Elements 16 for connection with corresponding connection elements 26 of the panels 20 may be arranged externally to the beam 10. For example, the connection elements 16 may be seats or female elements 16' arranged at the outer surfaces 110", 120", while the connection elements 26 may be male elements 26'.
The connection elements 16 and the connection elements 26 may possibly be snap-coupled to each other.
It is clear that the aforementioned male and female elements may also be inverted without departing from the scope of protection of the attached claims. For example, the connection elements 26 may include the female element and the connection elements 16 may include the male element.
It is clear that such connection elements 16, 26 may be of any type without departing from the scope of protection of the present invention.
The beam 10 and the panel 20 may be coupled so as to allow the mutual sliding along a direction substantially parallel to the axis X and prevent the mutual sliding thereof along a direction substantially perpendicular with respect to the axis X, i.e. they may prevent the decoupling of the beam 10 and of the panel 20.
Thus, the panels 20 and the beam 10 may be connected in a simple and quick manner, without using screws, bolts or similar fixing elements. Furthermore, thanks to such characteristic, the positioning of the panel 20 may be varied slightly even when it is already connected with the beam 10.
The beam 10 may suitably comprise one or more portions 19 to be coupled with the ceiling C. Such types of coupling may be of the per se known type.
The beam 10 may comprise at least one portion to allow the coupling of the accessory 30, 40 with the beam 10. Such coupling may preferably be of the removable type.
Suitably, the inner surfaces 110', 120', 130' of the walls 11, 12, 13 may thus define the inner surface of the compartment 14.
In any case, the system 1 may house only one accessory 40, a plurality of such accessories 40, or a plurality of accessories 30, 40 different from each other as described above. For example, the compartment 14 may house a plurality of lighting devices 40 and emergency lights. On the other hand, according to another embodiment the compartment 14 may house a plurality of different accessories 30, such as for example emergency lights, alarm signals and/or smoke sensors, and/or speakers for example as illustrated in Fig. 7.
Generally, the accessories 30, 40 may be simultaneously and/or alternatingly couplable with the beam 10. In particular, the beams 10 may comprise several accessories 30, 40 simultaneously or the accessories 30, 40 may be selectively alternatingly mountable on a beam 10.
Should the need to vary the configuration of the system 1 arise, the appropriate accessory 30, 40 may be suitably mounted upon removing the accessory 30, 40 present, if present, from one or more of the beams 10.
The system 1 may thus be multifunctional, i.e. it may be suitable to house one or more accessories in a removable manner so as to guarantee to the user the possibility of changing the configuration of the space E whenever required.
It is clear that the system 1 may comprise a plurality of beams 10 having the characteristics described above, each one of which may comprise one or more accessories 30, 40.
According to a particular aspect of the invention, the system 1 may comprise means 60 and means 70 for coupling the accessories 30, 40 and the beam 10 as better described hereinafter.
The accessories 30, 40 may be coupled with the beam 10 using the means 60, while the means 70 may act as safety means for preventing the decoupling of the accessories 30, 40 and the beam 10. On the other hand, according to another aspect of the invention, the means 60 and the means 70 may cooperate to couple the accessories 30, 40 and the beam 10.
Such characteristics will allow to prevent the inadvertent decoupling between the beam 10 and the accessories 30, 40 with the risk of the latter falling off, for example due to wear, overheating, impacts, earthquakes or the like.
In other words, in this manner the system 1 may have anti-seismic characteristics.
Furthermore, this could allow the coupling of the beam 10 with heavy accessories 30, 40. For example, the accessories 30, 40 may weigh up to 7 kg, preferably up to 10 kg per linear metre.
In other words, the means 70 may act as safety elements and/or support elements for the coupling of the accessories 30, 40 with the beam 10.
For example, should the accessory 30, 40 be light, i.e. substantially lighter than 1 kg, the means 70 may be safety elements, while should the accessory 30, 40 be heavy, i.e. weigh about 10 kg, the means 70 may serve as coupling means.
It is clear that such examples are not exclusive in that the function of the means 70, i.e. the safety and/or support function, may depend on the weight of the accessories 30, 40, on the configuration of the means 60 and, more generally, on the mutual configuration of the means 60 and of the means 70.
More in detail, the means 60 may be snap-coupling means, magnets, male-female means, bayonet-coupling means or the like of the per se known type. For example, the means 60 may be of the magnetic type as shown in the attached figures. However, such example shall not be deemed as exclusive.
On the other hand, the means 70 may include one or more laminar elements 70'. In particular, the laminar element 70' may comprise a pair of opposite end portions 71, 72, and a central portion 73 interposed between the latter.
Suitably, the central portion 73 may interact with the accessory 30, 40 while the end portions 71, 72 may interact with the lateral walls 11, 12 of the beam 10.
In particular, the lateral walls 11, 12 may comprise a respective longitudinal appendage 111, 121 extending towards the compartment 14. Preferably, the longitudinal appendages 111, 121 may have a substantially continuous extension along the entire beam 10.
Suitably, the longitudinal appendages 111, 121 and the end portions 71, 72 may be configured so as to promote the insertion of the element 70' into the compartment 14 and so as to prevent the release thereof.
For example, as illustrated in the attached figures, the appendages 111, 121 may be substantially arc-shaped and they may have a concave portion 113, 123 for receiving the end portions 71, 72 of the element 70'. Suitably, the end portions 71, 72 may also be substantially arc-shaped in an opposite manner with respect to the concave portions 113, 123.
In this manner, the mutual configuration of the appendages 111, 121 and the end portions 71, 72 may allow to facilitate the insertion of the element 70' and it may allow to prevent the inadvertent removal of thereof from the compartment 14.
More in detail, the concave portions 113, 123 of the longitudinal appendages 111, 121 may have a respective upper operative surface 112, 122 susceptible to come into contact with a corresponding operative surface 74, 75 of the end portions 71, 72.
Preferably, the element 70' may be removably inserted into the compartment 14.
For example, the end portions 71, 72 may be rotatably movable with respect to the central portion 73 iso as to allow the user to act thereon to move the operative surfaces 74, 75 and 112, 122 away and thus remove the element 70' from the compartment 14.
The element 70' may be made of metal or of polymeric material. Furthermore, the element 70' may be elastically deformable or it may comprise at least one elastically deformable portion 76. In other words, may slightly deform the element 70' or the portion 76 thereof to rotate the end portions 71, 72 so as to allow the removal of the element 70' from the compartment 14.
Thanks to the longitudinal appendages 111, 121, the element 70' may be coupled with the beam 10 in any operative position of the latter so as to adapt to the different positions and/or lengths of the accessories 30, 40. Possibly, both the element 70' and the accessories 30, 40 may be coupled with the beam 10 in any position of the latter.
The expression operative position is used to indicate when the element 70' is coupled with the beam 10 and interacts with the accessory 30, 40 to perform a support and/or safety function.
According to a particular aspect of the invention, the elements 70' may slide along the beam 10 still remaining coupled therewith. In particular, the end portions 71, 72 may slide along the appendages 111, 121 while the respective operative surfaces 74, 75 and 112, 122 may remain at mutual contact.
In this manner, the elements 70', and possibly also the accessories 30, 40, may be positioned in any position of the beam 10 and/or they can be repositioned thereon.
Furthermore, advantageously, the accessories 30, 40 can be removed or replaced without having to de-couple the elements 70' and the beams 10.
According to a particular embodiment, the accessory may be a lighting device 40 comprising at least one light source 40' or a speaker 30.
Suitably, at least one longitudinal conductive guide rail 41' that can be powered by means of electric power supply means may be provided for. In particular, an electric power supply line, for example the domestic power mains, electrically connected with the conductive guide rail 41' may be provided for so that the latter power-supplies the light source 40'.
The latter may for example comprise one or more LED lights, possibly a spot of LED lights, i.e. a plurality of LEDs 40' mounted on a special support structure of the known type. In particular, the LED lights 40' may be electrically connected with the conductive guide rail 41' so as to be power-supplied by the latter. The LED lights 40' may be all identical to each other or not.
Each device 40 may be substantially modular, i.e. it may consist of two or more LED spots 40'. For example, the device 40 may have a length of 600 mm (one spot), 1200 mm (two spots) 1800 mm (three spots) or 2400 mm (four spots).
Each spot may comprise a high number of LEDs. For example, a spot measuring 600 mm long may comprise 294 LEDs 40' arranged in 7 rows.
According to a particular aspect of the invention, the guide rail 41' may be power-supplied at low voltage. Thus, the LED lights 40' may too be power-supplied at low voltage.
The electronic devices are divided into electrical insulation classes as defined by the IEC (International Electrotechnical Commission). In particular, the device 40 may meet the insulation class III requirements according to the IEC.
Thus, the device 40 may be particularly safe, it may not be hazardous in case of contact with the human body, and thus does not require the earthing of the device.
For example, the voltage of the guide rail 41' may be about 48 volts in direct current.
The electric power supply line may suitably be at low voltage (electricity generated by a low voltage battery) or there may be provided for at least one low voltage transformer 42 connected to the electric power supply line and arranged upstream of the of the guide rail 41' so that the latter is power-supplied in low voltage (FIG. 2).
There may be provided for a transformer 42 at each beam 10 so that it is connected with a guide rail 41', or the transformer 42 may be simultaneously electrically connected with a plurality of guide rails 41'.
Possibly, a plurality of consecutive guide rails 41' coupled to the same beam 10 with the same transformer 42 may be possibly connected.
It is clear that the dimensioning and configuration of the transformer 42 may vary depending on the need, the materials, the length of the guide rail, or the current of the power mains that supply it with power.
In other words, the domestic mains (220 Vac, alternating current) may define the electric power supply line, while - due to the presence of the transformer - the guide rail 41' and thus the LED lights 40' may be power-supplied at low voltage (48 Vdc, direct current).
This may allow avoiding the high number of cables and transformers which can generally be observed in such devices. Furthermore, the use of low voltage electric current makes the device particularly safe, with low risks for the users and operators and without requiring earthing.
Thus, the installation thereof will also be particularly simple, safe and quick.
Suitably, the guide rail 41' may be integrally coupled with the upper wall 13 of the beam 10 in a per se known manner, for example by means of self-tapping screws or screw-bolt systems.
As known, should the lighting device 40 be under class III, there is no need for particular solutions for the safety or isolation of one or more parts thereof.
Thus, the lighting device 40 may comprise a longitudinal profile 44 and an adapter element 43 susceptible to be coupled with the guide rail 41' so as to mutually couple the lighting device 40 and the beam 10. Each device 40 may preferably comprise an adapter 43 in proximity of an end 44' and an adapter 43 in proximity of the opposite end 44' of the longitudinal profile 44.
Preferably, the adapter element 43 may comprise electrically conductive means to allow the flow of current between the guide rail 41' and the LEDs 40'. It is clear that the electrical connections between each LED 40' and the guide rail 41' may be of the per se known type, for example by means of suitable cables passing through the adapter 43.
According to a particular aspect of the invention, the guide rail 41' and/or the adapter 43 may comprise mutually couplable magnetic elements defining the coupling means 60.
For example, the guide rail 41' may comprise at least one magnet, preferably a magnetic longitudinal bar, while the adapter 43 may be configured to be attracted by the magnet so as to couple the latter to the guide rail 41'.
The magnetic coupling may for example be obtained so that the guide rail 41' can sustain a weight of in the order of a few Kg per linear metre, i.e. the configuration and characteristics of the magnetic bar and of the adapter 43 may be such that the mutual attraction is substantially equal to or greater than such force.
The adapter element 43 may suitably be coupled to the guide rail 41' in any position of the latter so that the lighting device 40 and thus the system 1 adapts to the various lighting needs of the space E.
Furthermore, the adapter element 43 may be removably coupled with the guide rail 41' so as to enable to easily reconfigure the arrangement of the lighting device 40.
The profile 44 and the adapter 43 may be integrally coupled in a per se known manner, for example, as shown in FIG. 6A, by means of a screw-bolt system.
In other words, the adapter 43 may be coupled at the upper part with the guide rail 41' by means of the mutual magnetic attraction action, i.e. by means of the means 60, and - at the lower part - with the longitudinal profile 44 by means of the screw-bolt system.
The device 40 may suitably comprise at least one seat 170 for the laminar element 70', and in particular for the central portion 73 thereof.
More in particular, the laminar element 70' may be interposed between the adapter 43 and the profile 44 so as to prevent the detachment of the adapter 43 from the guide rail 41' and thus the lighting device 40 from the beam 10.
The adapter 43 and the longitudinal profile 44 may thus respectively have at least one first portion 45 and at least one second portion 46 mutually faced and spaced apart to define the seat 170.
At least one spacer 80 interposed between the portions 45, 46 so as to keep the latter mutually spaced apart by a predetermined distance may be suitably provided for. For example, such spacer 80 may be a washer or the like.
Suitably, the central portion 73 of the laminar element 70' may also have a thickness substantially equal to or slightly smaller than the predetermined distance.
For example, such distance may be about 1.5 mm, while the central portion 73 may have a slightly smaller thickness, for example of about 1.2 - 1.4 mm.
According to a particular aspect of the invention, the entire laminar element 70' may have such thickness.
In this manner, upon inserting the central portion 73 into the seat 170, the former may remain interposed between the adapter 43 and the profile 44.
Should the profile 44 not be present or should the latter not have the portion 46 facing the portion 45, the central portion 73 of the laminar element 70' may come into contact with the portion 45 of the adapter 43 to support the latter.
It is clear that the description above does not exclusively refer to the lighting device 40 only. As a matter of fact, the speaker 30 may also have the seat 170 for the laminar element 70' and it may have the adapter 43 couplable with the beam 10 using the means 60.
Thus, the beam 10, or a plurality of beams 10, may be operatively provided. Furthermore, a plurality of lighting devices 40 which may be coupled with the beam 10 in any position of the latter by means of coupling means 60 may be provided. The laminar element 70' may be subsequently coupled with the beam 10 by inserting the former into the compartment 14 and then sliding the laminar element 70' so as to insert it into the seat 170.
Preferably, each lighting device 40 may have a pair of adapters 43 and a pair of seats 170 for receiving the laminar elements 70'.
It is clear that the laminar elements 70' may be coupled with the beam 10 before or after inserting the lighting device 40 and possibly irrespectively of the presence of the lighting device 40.
In other words, upon removing the laminar elements 70' from the seat 170, the lighting device 40 may be removed and/or repositioned. The laminar elements 70' may suitably slide along the beam 10 and/or they may be removed therefrom, for example by acting on the portions 76.
The invention is susceptible to numerous modifications and variants, all falling within the scope of protection of the attached claims. All details can be replaced by other technically equivalent elements, and the materials can be different depending on the technical needs, without departing from the scope of protection defined by the attached claims.

Claims

A system installable in a space (E) at a ceiling (C), comprising:
- at least one longitudinal profile or beam (10) couplable with the ceiling (C);

- at least one longitudinal conductive guide rail (41') that can be fixed to said at least one profile or beam (10) and that can be power-supplied with electric power supply means;

- at least one lighting device (40) removably coupled with said at least one longitudinal beam or profile (10) and electrically connected with said at least one longitudinal conductive guide rail (41');
wherein said at least one profile or beam (10) comprises a pair of lateral walls (11, 12) mutually facing each other and an upper wall (13) designated to be faced towards the ceiling (C) mutually cooperating to internally define a compartment (14) open at the bottom to removably receive said at least one lighting device (40);
wherein said system further comprises:
- first means (60) for the magnetic coupling of said at least one lighting device (40) and of said at least one longitudinal conductive guide rail (41');

- second means (70) for the removable mechanical coupling of said at least one lighting device (40) and of said at least one profile or beam (10), said second coupling means (70) cooperating with said first magnetic coupling means (60).
System according to the preceding claim, wherein said at least one lighting device (40) comprises at least one adapter element (43), said first magnetic coupling means (60) being configured to magnetically couple said at least one adapter element (43) and said at least one conductive longitudinal guide rail (41').
System according to claim 2, wherein said at least one lighting device (40) comprises at least one seat (170) for said second mechanical coupling means (70), said at least one seat (170) and said second mechanical coupling means (70) being mutually configured so that when the latter are coupled with said at least one profile or beam (10), said second mechanical coupling means (70) prevent the decoupling of said at least one adapter element (43) and said at least one conductive longitudinal guide rail (41').
System according to claim 3, wherein said at least one lighting device (40) comprises at least one longitudinal profile (44), said at least one adapter element (43) and said at least one longitudinal profile (44) respectively having at least one first portion (45) and at least one second portion (46) mutually facing each other and spaced to define said at least one seat (170).
System according to claim 4, comprising at least one spacer (80) interposed between said at least one first and at least one second portion (45, 46) of said at least one adapter element (43) and of said at least one longitudinal profile (44) to keep the same portions mutually spaced by a predetermined distance.
System according to claim 3, 4 or 5, wherein said second mechanical coupling means (70) include at least one element (70') having a substantially laminar extension, said at least one laminar element (70') comprising a central portion (73) designated to be inserted into said at least one seat (170) and a pair of opposite end portions (71, 72) designated to interact with said at least one profile or beam (10).
System according to the preceding claim, wherein said central portion (73) of said at least one laminar element (70') can be removably inserted into said seat (170).
System according to any one of the preceding claims, wherein said second coupling means (70) - once coupled with said at least one profile or beam (10) - are slidable with respect to the latter.
System according to any one of claims 6, 7 and 8, wherein said pair of lateral walls (11, 12) comprises a respective longitudinal appendage (111, 121) extending towards said compartment (14), said pair of opposite end portions (71, 72) of said at least one laminar element (70') being susceptible to interact with said longitudinal appendage (111, 121) of respectively said pair of lateral walls (11, 12) of said at least one profile or beam (10) for coupling the latter and said at least one laminar element (70') in any position.
System according to the preceding claim, wherein said longitudinal appendage (111, 121) of said pair of lateral walls (11, 12) has a respective first upper operative surface (112, 122), said pair of opposite end portions (71, 72) of said at least one laminar element (70') having a respective second operative surface (74, 75), said first and second operative surfaces (112, 122 and 74, 75) being mutually at contact upon coupling said at least one laminar element (70') with said at least one profile or beam (10).
A multifunctional system installable in a space (E) at a ceiling (C), comprising:
- at least one longitudinal profile or beam (10) couplable with the ceiling (C);

- at least one first and one second accessory (30, 40) that perform one or more functions in the space (E), said at least one first and one second accessory (30, 40) being alternatingly selectively removably coupled with said at least one profile or beam (10);
wherein said at least one profile or beam (10) comprises a pair of lateral walls (11, 12) mutually facing each other and an upper wall (13) designated to be faced towards the ceiling (C) mutually cooperating to internally define a compartment (14) open at the bottom to removably receive said at least one first (30) or at least one second accessory (40);
wherein the system further comprises:
- means (60) for snap coupling said at least one first and one second accessory (30, 40) with said at least one profile or beam (10);

- safety means (70) removably coupleable with said at least one profile or beam (10) in at least one operative position to prevent the decoupling of said at least one first and one second accessory (30, 40) and said at least one longitudinal beam or profile (10).
System according to claim 11, wherein said safety means (70) comprise at least one laminar element (70'), the latter being coupleable with said at least one longitudinal profile or beam (10) in any operative position thereof.
System according to claim 11 or 12, wherein said at least one laminar element (70') is snap insertable into said compartment (14) to be coupled with said at least one profile or beam (10).
System according to any one of claims 11 to 13, wherein said at least one laminar element (70') comprises a pair of opposite end portions (71, 72), said pair of lateral walls (11, 12) comprising a respective longitudinal appendage (111, 121) extending towards said compartment (14), said pair of opposite end portions (71, 72) being susceptible to interact with a respective longitudinal appendage (111, 121) of said pair of lateral walls (11, 12) of said at least one profile or beam (10).
System according to the preceding claim, wherein said pair of opposite end portions (71, 72) and said longitudinal appendages (111, 121) of said pair of lateral walls (11, 12) are mutually configured so as to promote the insertion of said at least one laminar element (70') into said compartment (14) and in order to prevent the release thereof.