EP3867568B1

EP3867568B1 - Furniture structure with lighting system

Info

Publication number: EP3867568B1
Application number: EP19801967.1A
Authority: EP
Inventors: Federico ORPIANESI; Luca Bosio
Original assignee: Fitart Ltd; Due FO Energy SRLS
Current assignee: Fitart Ltd; Due FO Energy SRLS
Priority date: 2018-10-15
Filing date: 2019-10-15
Publication date: 2023-06-07
Anticipated expiration: 2039-10-15
Also published as: WO2020079577A1; CN113195973A; ES2953070T3; IT201800009462A1; EP3867568A1

Description

Technical Field

The present invention relates to a furniture structure with lighting system.

Background Art

With regard to the prior art, furniture is known which comprises a fixed structure resting on the ground and one or more shelves to be assembled, which are provided with lighting devices for the items on display, e.g., such as LED strips.
The power supply of the lighting devices is guaranteed through a connection with an electrical source, which is typically connectable to a first length of electrical cables installed on the fixed structure, e.g., inside special ducts, and which are in turn connectable to a second length of electrical cables installed on each shelf and connected to the corresponding lighting device.
The electrical connection between the first and the second length of cables is generally made by means of special electrical connectors which can be coupled in a removable manner to each other to connect/disconnect the first length and the second length of cables, so as to allow the assembly and disassembly of the respective shelves.
However, since the electrical components are rather unsightly, they are hidden from view as much as possible, e.g., by hiding the first and second lengths of cables inside the fixed structure and the shelves respectively.
Nevertheless, some elements, e.g., some cable portions or connectors, remain equally exposed to view due to operational needs.
To overcome these problems, the use has been recently known of a series of magnetic induction coils (transmitters) installed on the fixed structure and a magnetic induction coil (receiver) installed on each shelf to be mounted, so that, after assembly, each transmitter is in contact with the corresponding receiver, with which it couples magnetically, allowing the flow of current and therefore the lighting up of the corresponding lighting device.
This way, there is no portion of electrical cable exposed to view and it is not necessary to use any electrical connector to connect the first and the second length of cables.
Moreover, the transmitters are generally arranged in predetermined positions on the fixed structure and are in sufficient number to allow a certain customization of the furniture structure: for example, it is possible to have a number of shelves even smaller than the number of transmitters, deciding where to place the desired shelves only and thus obtaining a certain freedom in the composition of the furniture structure
Some representative prior art arrangements are disclosed in patent documents EP 1 950 514 A1 , US 2009/021927 A1 and EP 1 760 733 A1 .
This prior art has however a number of drawbacks, including the limited flexibility of assembly of the furniture structure: in fact, the shelves can be fitted with a certain amount of freedom, but only in predetermined positions, i.e., at the transmitters.
Another drawback of the prior art is the fact that the transmitters receive electric current continuously, thus consuming energy even if they are not coupled to corresponding receivers, e.g. because the number of fitted shelves is lower than the number of transmitters.
Furthermore, another drawback of the prior art is the fact that, despite being as hidden as possible, the receiver and the transmitter can be seen from outside or else other components of the mechanical type are exposed to view, e.g., as small portions of alignment which are generally used to ensure that the transmitters and receivers are kept perfectly facing one another, worsening the overall aesthetics of the furniture structure.

Description of the Invention

The main aim of the present invention is to provide a furniture structure with lighting system which permits moving the shelves in arbitrary positions and more easily than in prior art, without being obliged to keep to predetermined positions.
Another object of the present invention is to increase the energy efficiency of the electrical components, reducing the waste of current compared to the prior art.
Another object of the present invention is to provide a furniture structure with lighting system, the electrical and mechanical components of which are completely hidden from view, making it possible to obtain a furniture structure of high aesthetic value without penalizing its functionality.
An additional object of the present invention is to provide a furniture structure with lighting system wherein the transmission power of the transmitters can be modulated depending on different factors, e.g., according to the distance which separates them from the corresponding receivers.
Another object of the present invention is to devise a furniture structure with lighting system which allows overcoming the aforementioned drawbacks of the prior art in the context of a simple, rational, easy, effective to use and affordable solution.
The aforementioned objects are achieved by the present furniture structure with lighting system according to claim 1.

Brief Description of the Drawings

Other characteristics and advantages of the present invention will be more evident from the description of several preferred, but not exclusive, embodiments of a furniture structure with lighting system, illustrated by way of an example, but not limited thereto, in the accompanying tables of drawings, wherein:

Figure 1 is a perspective view of the interior of an embodiment of the furniture structure according to the invention;
Figure 2 is a perspective view of the furniture structure shown in Figure 1;
Figure 3 is a set of orthogonal projections of a detail of the furniture structure shown in Figure 1 and in Figure 2;
Figure 4 is a perspective view of an alternative embodiment of the furniture structure according to the invention;
Figure 5 is a perspective view of a further embodiment of the furniture structure according to the invention.

Embodiments of the Invention

With particular reference to these illustrations, reference numeral 1 globally designates a furniture structure with lighting system.
The furniture structure 1 comprises:

at least one support structure 2;
at least one magnetic induction transmitter 3 associated with the support structure 2 and connectable to an electrical source 4;
at least one shelf 5, associated with the support structure 2 in a removable manner and provided with a lighting device 6;
at least one magnetic induction receiver 7 located on the shelf 5, magnetically coupled to the transmitter 3 and adapted to power the lighting device 6.

With particular reference to the embodiment shown in the figures from 1 to 3, the term support structure means any stable structure, such as e.g. a framework to be fixed to the wall or the structure of a piece of furniture/display unit which can be positioned permanently resting on the ground without having to be attached to a wall or in general to a surface.
More in detail, the transmitter 3 is powered by the electrical source 4 and is adapted to generate a magnetic field which permits coupling to a corresponding receiver 7, inducing within it an electric induction current used to power the lighting device 6.
Advantageously, the furniture structure 1 comprises distribution means of the electrical source 4 interposed between the latter and the transmitter 3 and adapted to make accessible the power supply necessary for the operation of the transmitter 3 in different areas of the furniture structure 1.
In particular, the distribution means comprise at least one electrical conductor 31, 32 which extends associated with the support structure 2 along a preestablished path and which is operationally connected to the electrical source 4, and at least one electrical connector 33 fitted on the transmitter 3 and connected in a removable manner to the electrical conductor 31, 32, so as to power the transmitter 3.
Advantageously, the electrical conductor 31, 32 comprises at least one support body 32 made of insulating material, such as e.g. an extruded element, and at least one conductor body 31 associated with the support body 32, such as e.g. a copper track.
Preferably, the electrical conductor 31, 32 is substantially rectilinear in shape and extends substantially along the height of the support structure 2.
This way, the transmitter 3 has access to the electrical source 4 through the distribution means along any point of the electrical conductor 31, 32, making possible the power supply of the transmitter 3 regardless of its position with respect to the support structure 2.
Preferably, the transmitter 3 comprises a coil 8, which is wound in a plurality of spirals 9 and generates a magnetic field when it is crossed by the electrical current supplied by the electrical source 4.
Similarly, the receiver 7 comprises a respective coil 8, which is crossed by an electrical current induced the instant when its spirals 9 are crossed by the magnetic field generated by the coil 8 of the transmitter 3.
This way, a mutual induction relationship can be established between the transmitter 3 and the receiver 7, allowing the power transmission required to power the lighting device 6.
In fact, the receiver 7, located on the shelf 5, is operationally connected to the lighting device 6, which lights up when the receiver 7 is magnetically coupled to the transmitter 3.
The transmitter 3 preferably comprises at least one ferromagnetic body, around which the coil 8 is wound and which defines a preferential path for the magnetic field lines.
Similarly, the receiver 7 preferably comprises at least one ferromagnetic body, around which the coil 8 is wound and which defines a preferential path for the magnetic field lines.
In addition, it is important to underline the fact that the magnetic coupling between the transmitter 3 and the receiver 7 does not require these to be in contact with each other.
In fact, the magnetic field, suitably directed by the transmitter 3, extends from the latter by several millimeters, allowing the transmitter 3 and the receiver 7 to be magnetically coupled remotely.
Advantageously, the furniture structure 1 comprises at least one holding element 10 of the shelf 5 associated with the support structure 2, where the holding element 10 has a plurality of recesses 11 arranged in predefined positions, and the shelf 5 comprises at least a hooking element 12 adapted to engage in a removable manner with the recesses 11.
In detail, the holding element 10 has an elongated shape and the recesses 11 are substantially arranged along its longitudinal extension; moreover, the hooking element 12 comprises at least one projection 13, which is adapted to slot into the recesses 11 themselves.
In particular, in a preferred but not exclusive embodiment of the present invention shown in the figures from 1 to 3, the procedure of assembly of the holding element 10 to which reference is made in the present treatise is that described and represented in the Italian patent document no.0001417463 .
In this embodiment, the furniture structure 1 comprises two holding elements 10 arranged laterally to the furniture structure 1 and each shelf 5 comprises two hooking elements 12 arranged laterally to the shelf 5 itself.
The possibility of using a different number of holding elements 10 and of hooking elements 12 cannot however be ruled out.
According to the invention, the furniture structure 1 comprises adjustment means 14 for adjusting the position of the transmitter 3 with respect to the support structure 2.
Advantageously, the adjustment means 14 are configured to allow the movement of the transmitter 3 along at least one of:

a direction of adjustment 15, 16 belonging to an adjustment plane 17;
a direction of approach/departure 18 with respect to the adjustment plane 17.

Conveniently, the adjustment plane 17 is arranged substantially vertical.
In the particular embodiment shown in the illustrations, the adjustment plane 17 coincides with the surface of the support structure 2 and the adjustment means 14 are adapted to allow the movement of the transmitter 3 along at least a first direction of adjustment 15, substantially vertical, and a second direction of adjustment 16, substantially horizontal.
The possibility cannot however be ruled out of the adjustment plane 17 being tilted differently, for example because the support structure 2 is tilted with respect to the vertical direction, so the possibility cannot be ruled out of the first direction of adjustment 15 and the second direction of adjustment 16 being tilted differently with respect to what is described.
Advantageously, the direction of approach/departure 18 is incident to the adjustment plane 17.
In the particular embodiment illustrated in the figures, the direction of approach/departure 18 is substantially orthogonal both to the first direction of adjustment 15 and to the second direction of adjustment 16, therefore it is positioned substantially horizontally.
In the specific embodiment shown in the illustrations, the adjustment means 14 comprise:

one guide element 19 extending along a first direction of adjustment 15, where the transmitter 3 is movable with respect to the guide element 19 along the first direction of adjustment 15 itself;
one plate element 20 interposed between the support structure 2 and the guide element 19 and provided with first slots 21 for the adjustment of its position with respect to the support structure 2 along a second direction of adjustment 16 and with second slots 22 for the adjustment of the position of the guide element 19 with respect to the plate element 20 itself along the direction of approach/departure 18;
removable clamping means 23a, 23b, 23c of the plate element 20 to the support structure 2 and to the guide element 19 and of the transmitter 3 to the guide element 19 itself.

The plate element 20 is therefore fixed to the support structure 2 by means of first clamping means 23a inserted in the first slots 21 (which extend along the second direction of adjustment 16), and is fixed to the guide element 19 by means of second clamping means 23b inserted in the second slots 22 (which extend along the direction of approach/departure 18); this way, the guide element 19 is locked together with the support structure 2.
The transmitter 3 can be moved with respect to the guide element 19 along the first direction of adjustment 15 and, once the desired position has been reached, can be fixed by means of third clamping means 23c.
Preferably, the distribution means of the electrical source 4 extend parallel to the guide element 19 along the direction of adjustment 15.
In particular, in the embodiments of the furniture structure 1 shown in the illustrations, the distribution means are fixed in a removable way to the guide element 19.
This way, the electrical connector 33 can be easily disconnected from the electrical conductor 31, 32 whenever the transmitter 3 has to be moved to freely adjust its position along the guide element 19, and can be easily connected to the electrical conductor 31, 32 once the position of the transmitter 3 has been fixed.
Alternative embodiments of the distribution means cannot however be ruled out wherein the electrical connector 33 is coupled sliding to the electrical conductor 31, 32, e.g. by means of a sliding contact along the conductor body 31, enabling it to slide along the electrical conductor itself during the adjustment of the position of the transmitter 3 along the guide element 19.
The first slots 21 therefore make it possible to adjust the position of the plate element 20, and therefore of the transmitter 3, with respect to the support structure 2 along the second direction of adjustment 16, and the second slots 22 make it possible to adjust the position of the guide element 19, and therefore of the transmitter 3, with respect to the plate element 20 along the direction of approach/departure 18.
This way, the position of the transmitter 3 can be changed as required along the first direction of adjustment 15, along the second direction of adjustment 16 and along the direction of approach/departure 18, i.e. in all directions of space.
In the specific example shown in Figures 1 and 3, the clamping means 23a, 23b are of the screw type, which can be easily screwed and unscrewed by hand to change the position of the plate element 20 and of the guide element 19 as required.
The possibility of using different clamping means 23a, 23b, e.g., such as pins, cannot however be ruled out.
The third clamping means 23c, on the other hand, advantageously comprise at least one hooking/unhooking element of the transmitter 3 which can be moved between a fixed configuration, wherein the transmitter 3 is fixed to the guide element 19, and an adjustment configuration, wherein the transmitter 3 is coupled sliding to the guide element 19, allowing it to slide along the direction of adjustment 15.
Preferably, the hooking/unhooking element is of the type of an adjustment screw with a spring which can be activated by hand.
Alternative embodiments of the third clamping means 23c wherein the hooking/unhooking element can be activated automatically by means of remote control cannot however be ruled out.
Moreover, it cannot be ruled out that also the clamping means 23a, 23b are of the same type as the third clamping means 23c.
Conveniently, the furniture structure 1 comprises a plurality of transmitters 3 and of relevant adjustment means 14 to move them with respect to the support structure 2 in a mutual independent manner.
More in detail, each transmitter 3 can be moved independently of the others thanks to the fact that it is individually associated with the guide element 19 and connectable individually to the distribution means, and can be removed as required.
According to an alternative embodiment not shown in the illustrations, the adjustment means are of an automated adjustment type and comprise movement means which can be controlled remotely, such as e.g. electric motors kinematically connected to the transmitters 3 and controlled remotely by means of special remote controls.
The electric motors are preferably associated with each transmitter 3 and kinematically coupled to the guide element 19 so as to allow, when activated, moving the transmitters themselves without the need for manual intervention. The transmitters 3, in actual facts, are associated in a removable manner with the support structure 2.
The furniture structure 1 advantageously comprises a covering element 24 associable with the support structure 2, accessible from the outside and adapted to define a containment chamber 25 of the transmitters 3, of the distribution means of the electrical source 4 and of the adjustment means 14.
In particular, the covering element 24 is movable between a work position, wherein it makes the containment chamber 25 inaccessible from the outside, and an adjustment position, wherein it makes the containment chamber 25 accessible from the outside.
The operating position is schematically shown in figures 2 and 3, while the adjustment position is reached by moving the covering element 24 with respect to the support structure 2.
In the specific embodiment shown in the illustrations, the covering element 24 is of the type of a panel, e.g., made of wood materials, which, in operating position, completely hides from view all the components which are in the containment chamber 25.
The possibility cannot furthermore be ruled out of using a different covering element 24, e.g. of the type of a sheet or a lining, and/or of different materials, such as, e.g., fabrics, plastics or stone materials.
The furniture structure 1 conveniently comprises at least one support element 26 of the covering element 24 associated with the support structure 2.
In more detail, the support element 26 comprises abutment means 27 against which the covering element 24 rests.
The abutment means 27 are therefore arranged in use behind the covering element 24.
In the specific example shown in the illustrations, the support elements 26 coincide with the holding elements 10 and their purpose is to hold both the covering element 24 and the shelves 5, avoiding the need to use other components exposed to view.
The possibility of using support elements 26 other than the holding elements 10 cannot however be ruled out.
The shelf 5 advantageously comprises an interface surface 28, facing the covering element 24, and a recess 29, obtained on the interface surface 28 for the housing of the receiver 7.
More particularly, the receiver 7 has a portion facing the covering element 24 and substantially coplanar to the interface surface 28 with the receiver 7 housed in the recess 29.
When the receiver 7 is placed inside the recess 29, therefore, the interface surface 28 is substantially flat and, being directed towards the covering element 24, completely hides the receiver 7 from view.
The furniture structure 1 conveniently comprises adjustment means for adjusting the power transmitted from the transmitter 3 to the receiver 7 depending on at least one of the distance from the transmitter 3 and the corresponding receiver 7 along the direction of approach/departure 18 and the power absorbed by the lighting device 6 of the corresponding receiver 7.
With reference to the term absorbed power, this is meant to indicate the power generally specified by the manufacturers of such devices.
In fact, depending on the lighting needs, the shelves 5 can be provided with lighting devices 6 which require different power supplies depending on the lumens of luminous flux which they are able to emit and on the size of the lighting devices 6.
Moreover, in operating position, while the transmitters 3 are placed inside the containment chamber 25, the receivers are placed inside the respective recesses 29 and are therefore separated from the transmitters 3 by the thickness of the covering element 24, which can have different thicknesses depending on the construction choices of the furniture structure 1.
In particular, the furniture structure 1 can be fitted with covering elements 24 with thicknesses ranging from about 5 to 20 millimeters.
Advantageously, in case the covering element 24 has to be replaced with another of different thickness, the adjustment means 14 allow varying the position of the transmitters 3 in order to be more in contact with the new panel 24, limiting the power consumption of the transmitters 3.
As is known, however, the more the distance between the transmitters 3 and the receivers 7 increases, i.e. the more the thickness of the mounted panel 24 increases, the more the intensity decreases of the magnetic field which, from the transmitter 3, reaches the receiver 7; the resulting effect is a decrease in the electric current induced in the receiver 7.
For these reasons, the power adjustment means are configured to increase or reduce the current flowing along the coil 8 of the transmitter 3, i.e. to increase or reduce the intensity of the magnetic field emitted by the transmitter 3, depending on the power absorption of the lighting device 6 installed on the corresponding receiver 7 and on the distance of the latter from the transmitter 3. In fact, provided that the distance between the transmitter 3 and the receiver 7 remains unchanged, as soon as a first lighting device 6, powered by the transmitter 3, is replaced by a second one which requires a higher power compared to the first one, the power adjustment means automatically increase the power transmitted by the transmitter 3, and therefore the magnetic field emitted by the same, switching on the second lighting device 6.
Similarly, as soon as a first lighting device 6 is replaced by a second one which requires less power than the first one, the power adjustment means automatically reduce the power transmitted by the transmitter 3, thus limiting its power consumption within the limits imposed by the ferromagnetic elements placed in the transmitter 3 and in the receiver 7.
In fact, the power transmitted by the transmitter 3 must not fall below a lower threshold limit defined by the minimum power absorbed by the ferromagnetic element of the transmitter 3 and below which the latter is unable to power the lighting device 6.
In the same way to what has just been described, provided that the lighting device remains unchanged, as soon as the distance between a transmitter 3 and the corresponding receiver 7 has been increased, the power adjustment means automatically increase the power transmitted by the transmitter 3, keeping on the lighting device 6 of the transmitter 3, within the limits imposed by nature and by the ferromagnetic elements placed in the transmitter 3 and in the receiver 7.
On the contrary, as soon as the distance between a transmitter 3 and the corresponding receiver 7 is reduced, the power adjustment means automatically reduce the power transmitted by the transmitter 3, thus limiting the power consumption of the same and avoiding the occurrence of overcurrent phenomena inside the receiver device 7, which can cause the malfunction or even the breakage of the same 7.
In addition, when a transmitter 3 is not coupled with any receiver 7, the power adjustment means automatically reduce the power consumption of the transmitter 3 to a minimum, for example by temporarily turning off the transmitter itself.
Preferably, the power adjustment means are configured to limit the maximum intensity of the magnetic field emitted by the transmitter 3 within the limits required by law.
Moreover, the power adjustment means preferably comprise at least one electronic control device operationally connected to the transmitter 3 and adapted to adjust the power transmitted from it to a corresponding receiver 7. Optionally, the power adjustment means also comprise an electronic control device operationally connected to the transmitter 3 and adapted to operate in conjunction with the electronic control device operationally connected to the transmitter 3 to optimize the adjustment of the power transmitted from it to the corresponding receiver 7.
Advantageously, the furniture structure 1 comprises actuation means 30a, 30b of the transmitters 3 configured to activate the magnetic coupling between the transmitters 3 and the receivers 7 and provided with:

at least a first electronic control device 30a operationally connected to at least a corresponding receiver 7 and configured to modulate the magnetic induction of the receiver 7 on a transmitter 3 to obtain a predefined magnetic induction; and
at least a second electronic control device 30b operationally connected to a transmitter 3 and configured to identify the magnetic induction of the transmitter 3 on the receiver 3.

In particular, the second electronic control device 30b is configured to activate the magnetic coupling between the transmitter 3 and the receiver 7 following the identification of the predefined magnetic induction of the transmitter 3 on the receiver 3.
More in detail, the first electronic control device 30a is configured to modulate the current pulses induced by the transmitter 3 on the coil 8 of the receiver 7, where such pulses are adapted to generate in turn the predefined magnetic induction on the coil 8 of the transmitter 3.
In fact, the second electronic control device 30b is configured to identify such predefined modulation carried out by the first electronic control device 30a. This way, the second electronic control device 30b allows the transmitter 3 to trigger the magnetic field adapted to power the transmitter 3 only the instant when the magnetic induction of the latter on the transmitter 3 is suitably modulated by the first electronic control board 30a.
In fact, if the furniture structure 1 is without the actuation means 30a, 30b, the transmitter 3 could trigger the magnetic field to power the receiver 7 even in the event of its facing any object made of ferrous material, thereby causing power and heat dissipation.
Preferably, the furniture structure 1 comprises a plurality of first and second electronic control devices 30a, 30b, where each transmitter 3 is operationally connected to a corresponding first electronic control device 30a and each receiver 3 is operationally connected to a corresponding second electronic control device 30b.
Alternative embodiments of the furniture structure 1 cannot however be ruled out wherein the actuation means 30a, 30b comprise an individual second electronic control device 30b operationally connected to each of the transmitter elements 3 and configured to adjust the operation of each of the latter.
Preferably, the first electronic control device 30a and the second electronic control device 30b coincide with the electronic control device operationally connected to the receiver 7 and with the electronic control device operationally connected to the transmitter 3, respectively.
Figure 4 shows an alternative embodiment of the furniture structure 1 wherein the support structure 2 coincides with the surface of a building, e.g., the wall of a room.
In particular, this embodiment differs from the one previously described in that the transmitters 3 are associated with the surface of the building by interposition of the adjustment means 14.
Figure 5 shows a further embodiment of the furniture structure 1 wherein the support structure 2 comprises at least one front cladding element 34 arranged substantially opposed the covering element 24, and wherein the transmitters 3 are associated with the cladding element 34 by interposition of the adjustment means 14.
In particular, the term frontally means the facade of the furniture structure 1 at which the shelves 5 are positioned.
In fact, unlike what has been described with reference to the previous embodiments, the support structure 2 and the covering element 24 are arranged at the front and back respectively with respect to the furniture structure 1. Furthermore, the transmitters 3 are oriented towards the inner face of the containment chamber 25 of the cladding element 34, so as to direct the magnetic field through the latter and outside the containment chamber itself.
In fact, in this embodiment, the adjustment plane 17 coincides with the inner face of the containment chamber 25 of the cladding element 34. Advantageously, as shown in Figure 5, in this embodiment, the support structure 2 is arranged in stable support on the ground and does not need to be supported and/or fixed to a wall or to a generic vertical surface as described in the previous embodiment.
Preferably, the cladding element 34 is of the type of a panel, e.g. made of wood materials.
It has in practice been ascertained that the described invention achieves the intended objects and, in particular, the fact is underlined that the furniture structure with lighting system to which the present invention relates permits, thanks to the use of the adjustment means, moving the shelves in arbitrary positions and more easily compared to the prior art, without the obligation of being secured to predetermined positions.
Moreover, the present invention increases the energy efficiency of the furniture structure, thus reducing the waste of current compared to the prior art, since it is possible to assemble and connect to the electric current a number of transmitters equal to the number of receivers and dismantle the unused transmitters.
In addition, in the present furniture structure with lighting system, the electrical and mechanical components are completely hidden from view, making it possible to obtain a furniture structure of high aesthetic appeal without penalizing its functionality.
Finally, the fact is clear that the furniture structure to which the present invention relates has an ample flexibility of use and continuous adjustment of its shelves.

Claims

Furniture structure (1) with lighting system, comprising:
- at least one support structure (2);

- at least one magnetic induction transmitter (3) associated with said support structure (2) and connectable to an electrical source (4);

- at least one shelf (5), associated with said support structure (2) in a removable manner and provided with at least one lighting device (6);

- at least one magnetic induction receiver (7) located on said shelf (5), magnetically coupled to said transmitter (3) and adapted to power said lighting device (6);
characterized by the fact that it comprises adjustment means (14) for adjusting the position of said transmitter (3) with respect to said support structure (2).
Furniture structure (1) according to claim 1, characterized by the fact that said adjustment means (14) are configured to allow the movement of said transmitter (3) along at least one of:
- at least one direction of adjustment (15, 16) belonging to an adjustment plane (17);

- at least one direction of approach/departure (18) with respect to said adjustment plane (17).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that said adjustment plane (17) is substantially vertical.
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that said direction of approach/departure (18) is incident to said adjustment plane (17).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that said adjustment means (14) comprise:
- at least one guide element (19) extending along a first said direction of adjustment (15), said transmitter (3) being movable with respect to said guide element (19) along said first direction of adjustment (15);

- at least one plate element (20) interposed between said support structure (2) and said guide element (19) and provided with first slots (21) for the adjustment of its position with respect to said support structure (2) along a second said direction of adjustment (16) and with second slots (22) for the adjustment of the position of said guide element (19) with respect to said plate element (20) itself along said direction of approach/departure (18);

- removable clamping means (23a, 23b, 23c) of said plate element (20) to said support structure (2) and to said guide element (19) and of said transmitter (3) to said guide element (19) itself.
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that it comprises a plurality of said transmitters (3) and of relevant said adjustment means (14) to move them with respect to said support structure (2) in an independent manner.
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that said adjustment means (14) are of an automated/remote control type and comprise at least one electric motor kinematically connected to said transmitter (3).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that said transmitter (3) is associated in a removable manner with said support structure (2).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that it comprises at least one covering element (24) associable with said support structure (2), accessible from the outside and adapted to define at least one containment chamber (25) of said transmitter (3) and of said adjustment means (14).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that said covering element (24) is movable between at least one work position, wherein it makes said containment chamber (25) inaccessible from the outside, and at least one adjustment position, wherein it makes said containment chamber (25) accessible from the outside.
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that it comprises at least one support element (26) of said covering element (24) associated with said support structure (2).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that said shelf (5) comprises at least one interface surface (28) facing said covering element (24) and by the fact that it comprises at least one recess (29), obtained on said interface surface (28), for the housing of said receiver (7).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that said receiver (7) has at least one portion facing said covering element (24) and substantially coplanar to said interface surface (28) with said receiver (7) housed in said recess (29).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that it comprises adjustment means of the power transmitted from said transmitter (3) to said receiver (7) depending on at least one of the distance of said transmitter (3) from said receiver (7) along said direction of approach/departure (18) and the power absorbed by the lighting device (6) of said receiver (7).
Furniture structure (1) according to one or more of the preceding claims, characterized by the fact that it comprises adjustment means of the power transmitted from said transmitter (3) to said receiver (7) depending on at least one of the distance of said transmitter (3) from said receiver (7) along said direction of approach/departure (18) and the power absorbed by the lighting device (6) of said receiver (7).