Display device with two display panels forming an adjustable angle between them

Abstract

The invention relates to a display device (1) comprising first and second supporting elements (2, 3), first and second flexible display supports (4, 5), a stiffening element (6), and first and second reinforcing structures (7, 8), wherein the supporting elements (2, 3) are assembled on an external support by means of attachment systems (9, 10). Assembly systems (17, 18, 19) allow the flexible display supports (4, 5) to be assembled with the supporting elements (2, 3) and with the stiffening element (6). Other assembly systems (39, 40, 41, 42) allow the reinforcing structures (7, 8) to be assembled, with a degree of mobility about longitudinal axes (X1, X2, X3), with the supporting elements (2, 3) and with the stiffening element (6). Locking systems (81, 82) immobilize the reinforcing structures (7, 8) relative to either the supporting elements (2, 3) or the stiffening element (6), when the display device is deployed.

Description

[0001] Description

[0002] Title: Display device with two display panels forming an adaptable angle between them

[0003] technical field

[0004] The present invention relates to a display device with two display panels forming an angle between them, said angle being adjustable, said display device being able to be fixed to an external support, in particular a wall, a balcony or window railing, a mast, a fence, or any other support. The display device according to the invention is particularly intended for real estate agencies or notary offices that offer services for the sale or rental of real estate, said display device allowing, for example, the display of the words "FOR SALE," "FOR RENT," or "SOLD," as well as the data relating to the real estate agency or notary office mandated by the owner of the property.

[0005] The invention will be implemented by industrial manufacturers of metal and / or plastic and / or textile products for the manufacture of the various parts of said display device and will also use printers for the production of printing on the display device.

[0006] State of the art

[0007] Traditionally, in the real estate sector, it is common to use display devices consisting of two panels joined by a fold line, creating a hinge between them. This allows the angle between the two panels to be adjusted, enabling the two edges opposite the fold line to be attached to an external support. Each edge has a flap with perforations for attaching the display device to the external support, such as a wall, balcony railing, pole, or fence. This design advantageously allows the text on the two panels to be viewed from two different angles.Such display devices are generally made of cardboard or plastic to withstand rain, with the printing on both sides being usually identical and, most importantly, permanent. When a property changes status—that is, when it has been sold or rented—the real estate agent or notary must change the display device to inform the public that the property has been sold or rented. This also allows them to promote their skills and performance as a real estate agent or notary, demonstrating their ability to achieve the sales or rental targets entrusted to them by property owners. The real estate agent or notary must therefore maintain a sufficient supply of display devices adapted to each situation ("FOR SALE," "SOLD," "FOR RENT," "RENTED," etc.), which incurs costs.

[0008] These display devices are also fragile, as they can deteriorate or bend during heavy rain and / or strong winds, as well as during handling by the real estate agent or notary who must install the display, remove it, store it, and transport it in their vehicle, then store it at their real estate agency or notary's office. The number of uses for these display devices is therefore considerably limited, requiring regular replenishment of stock.

[0009] This results in high advertising costs for real estate agencies and notary offices.

[0010] The Applicant is aware of the following prior art relating to display devices: GB 2 521 123 A; JP H06 36081 U; US 10 977 967 B1; and FR 2 837 018 Bl.

[0011] Summary of the invention

[0012] The present invention aims to overcome these drawbacks and, to this end, proposes a robust display device on which the two display panels are easily interchangeable.

[0013] To this end, the invention relates to a display device, which comprises a first load-bearing element equipped with a first attachment system suitable for fixing said first load-bearing element to an external support, the first load-bearing element defining a first longitudinal axis. The external support may be, for example, a wall, a balcony or window railing, a mast, a barrier, a wire mesh panel, or any other conceivable external support.

[0014] According to the invention, the display device comprises a first flexible display support, a first assembly system being configured to assemble the first load-bearing element and a first lateral edge of the first flexible display support.

[0015] According to the invention, the display device comprises a second load-bearing element equipped with a second attachment system for fixing said second load-bearing element to the external support, the second load-bearing element defining a second longitudinal axis. According to the invention, the display device also comprises a second flexible display support, a second assembly system being configured for joining the second load-bearing element and a first lateral edge of the second flexible display support.

[0016] According to the invention, the display device includes a stiffening element defining a third longitudinal axis, a third assembly system being configured to assemble said stiffening element with a second lateral edge of the first flexible display support and with a second lateral edge of the second flexible display support.

[0017] According to the invention, the display device comprises a first reinforcement structure, a fourth assembly system being configured to assemble with a degree of mobility around the first longitudinal axis, said first reinforcement structure with said first load-bearing element and a fifth assembly system being configured to assemble with a degree of mobility around the third longitudinal axis, said first reinforcement structure with said stiffening element.

[0018] According to the invention, the display device comprises a second reinforcement structure, a sixth assembly system being configured to assemble with a degree of mobility around the second longitudinal axis, said second reinforcement structure with said second load-bearing element and a seventh assembly system being configured to assemble with a degree of mobility around the third longitudinal axis, said second reinforcement structure with said stiffening element.

[0019] According to the invention, the first reinforcement structure comprises two first reinforcement bars extending parallel to each other with a spacing between them, between the first longitudinal axis and the third longitudinal axis. Similarly, the second reinforcement structure comprises two second reinforcement bars extending parallel to each other with a spacing between them, between the second longitudinal axis and the third longitudinal axis.

[0020] According to the invention, the first two reinforcing bars, the second two reinforcing bars, the first load-bearing element, the second load-bearing element, and the stiffening element each comprise a first longitudinal end and a second longitudinal end. The first longitudinal ends of the first two reinforcing bars are respectively assembled with the first and second longitudinal ends of the first load-bearing element. The second longitudinal ends of the first two reinforcing bars are respectively assembled with the first and second longitudinal ends of the stiffening element. The first longitudinal ends of the second two reinforcing bars are respectively assembled with the first and second longitudinal ends of the second load-bearing element.The second longitudinal ends of the two second reinforcing bars are respectively assembled with the first and second longitudinal ends of the stiffening element.

[0021] The first and second load-bearing elements support the load of the first and second reinforcement structures, the stiffening element, and the first and second flexible display supports. These first and second load-bearing elements also allow the display device to be attached to the external support. The degrees of mobility of the first reinforcement structure around the first and third longitudinal axes, and the degrees of mobility of the second reinforcement structure around the second and third longitudinal axes, allow for the proper positioning of the first and second load-bearing elements relative to the external support during their attachment. The first and second reinforcement structures and the stiffening element also tension the first and second flexible display supports and stiffen the display device.

[0022] The first and second flexible display supports can also be replaced while retaining the first and second load-bearing elements, the first and second reinforcing structures, and the stiffening element. The ability to adjust the angles of the first and second reinforcing structures by pivoting them relative to the first and second load-bearing elements and the stiffening element allows for optimal positioning of the first and second load-bearing elements before they are attached to the external support. The display unit can thus be mounted on a wide variety of external supports with optimal fixing conditions.

[0023] The first and second flexible display supports can be implemented, for example, in one or more textile panels or in one or two sheets of plasticized material, capable of receiving printed text, photos, drawings, or even other types of printing. The first and second load-bearing elements, the first and second reinforcing structures, and the stiffening element will preferably be made of metal, preferably aluminum; however, plastic materials remain a possibility for all or part of these components, for example, polypropylene (PP) or polyamide (PA).

[0024] According to a preferred embodiment of the display device of the invention, the first load-bearing element comprises a first winding system configured to either wind the first flexible display support around the first longitudinal axis in a storage position, or unwind the first flexible display support from the first longitudinal axis in a usage position. Furthermore, the first assembly system is configured to assemble the first winding system and the first lateral edge of the first flexible display support. Thus, the first flexible display support winds around the first longitudinal axis by means of the first winding system, which reduces the overall size of the display device when disassembled and facilitates the installation of the first flexible display support during assembly of the display device, as well as its storage during disassembly of the display device.

[0025] According to a preferred embodiment of the display device of the invention, the second supporting element comprises a second winding system configured to either wind the second flexible display support around the second longitudinal axis in a storage position, or unwind the second flexible display support from the second longitudinal axis in a usage position. Furthermore, the second assembly system is configured to assemble the second winding system and the first lateral edge of the second flexible display support. Thus, the second flexible display support winds around the second longitudinal axis by means of the second winding system, which reduces the overall size of the display device when disassembled and facilitates the installation of the second flexible display support during assembly of the display device, as well as its storage during disassembly.

[0026] Preferably, the display device will include the aforementioned first and second winding systems, such that the first flexible display support is wound around the first longitudinal axis and the second flexible display support is wound around the second longitudinal axis when the display device is stored. Furthermore, the deployment of the first and second flexible display supports can be easily and simultaneously achieved by pulling on the stiffening element previously assembled with these first and second display supports.

[0027] According to a preferred embodiment of the display device of the invention, the first lateral edge of the first flexible display support extends along the first longitudinal axis when assembled with the first support element, the first lateral edge of the second flexible display support extends along the second longitudinal axis when assembled with the second support element, and the second lateral edges of both the first and second display supports extend along the third longitudinal axis when assembled with the stiffening element. Thus, the first and second display supports each have a preferred rectangular shape.

[0028] According to the invention, the first reinforcement structure extends in a first plane defined by the first longitudinal axis and the third longitudinal axis when assembled with the first load-bearing element and with the stiffening element, and the second reinforcement structure extends in a second plane defined by the second longitudinal axis and the third longitudinal axis when assembled with the second load-bearing element and with the stiffening element.

[0029] According to one embodiment of the display device of the invention, the first flexible display support and the second flexible display support are made of one and the same flexible display support whose two lateral edges are respectively assembled with the first supporting element and with the second supporting element, and whose median is assembled with the stiffening element.Thus, when the real estate agent or notary wishes to change the display, for example to replace the mention "FOR SALE" with the mention "SOLD", they can disassemble the edges of the flexible display support from the first and second load-bearing elements and disassemble the stiffening element from the first and second reinforcement structures to replace it with another flexible display support to which another stiffening element will have been previously assembled, or even replace only the flexible display support with another, reusing the same stiffening element which, in this case, will have been previously removed from the previous flexible display support to then be reassembled on the new flexible display support.

[0030] According to a first embodiment of the invention, the display device includes a first locking system configured to immobilize the first reinforcement structure with either the first load-bearing element or the stiffening element, when said first reinforcement structure is assembled with the first load-bearing element and with the stiffening element. The display device also includes a second locking system configured to immobilize the second reinforcement structure with either the second load-bearing element or the stiffening element, when said second reinforcement structure is assembled with the second load-bearing element and with the stiffening element.The first and second locking systems allow the angular positions of the first and second reinforcement structures to be locked even before the assembly of the first and second load-bearing elements on the external support, thus fixing the angular positions of the first and second flexible display supports which are stretched and form two display panels, before the display device is fixed on the external support.

[0031] A second embodiment of the display device according to the invention, without these first and second locking systems, is also possible as an alternative to the aforementioned first embodiment. The first and second load-bearing elements are fixed to an external support sufficient to lock the angular positions of the first and second flexible display supports, which are stretched and form two display panels. According to a first variant of the aforementioned first embodiment of the display device of the invention, the first locking system is configured to immobilize the first reinforcement structure with the first load-bearing element when said first reinforcement structure is assembled with the first load-bearing element and with the stiffening element.Furthermore, the second locking system is configured to immobilize the second reinforcement structure with the second load-bearing element when said second reinforcement structure is assembled with the second load-bearing element and with the stiffening element. This initial design allows for very easy and safe installation of the display device on an external support such as a balcony or a support accessible from a window.

[0032] A second variant of the first aforementioned embodiment of the display device which is the subject of the invention remains conceivable, although less easy and secure than the first variant mentioned above, according to which the first locking system is configured to immobilize the first reinforcement structure with the stiffening element when said first reinforcement structure is assembled with the first load-bearing element and with the stiffening element, and the second locking system is configured to immobilize the second reinforcement structure with the stiffening element when said second reinforcement structure is assembled with the second load-bearing element and with the stiffening element.

[0033] A third variant of the first aforementioned embodiment of the display device which is the subject of the invention may also be envisaged, as a variant of the first and second variants mentioned above, according to which the first locking system is configured to immobilize the first reinforcement structure with the first load-bearing element when said first reinforcement structure is assembled with the first load-bearing element and with the stiffening element, and the second locking system is configured to immobilize the second reinforcement structure with the stiffening element when said second reinforcement structure is assembled with the second load-bearing element and with the stiffening element.The reverse is also possible, according to a fourth variant of this first embodiment of the display device mentioned above, in which case the first locking system is configured to immobilize the first reinforcement structure with the stiffening element when said first reinforcement structure is assembled with the first load-bearing element and with the stiffening element, and the second locking system is configured to immobilize the second reinforcement structure with the second load-bearing element when said second reinforcement structure is assembled with the second load-bearing element and with the stiffening element.

[0034] According to a first conception of the aforementioned first embodiment of the display device of the invention, the first locking system and the second locking system each comprise at least one first locking assembly, preferably two first locking assemblies. This first locking assembly comprises a first part attached to the first supporting element, respectively to the second supporting element, the first part comprising a first flat face disposed perpendicular to the first longitudinal axis, respectively to the second longitudinal axis, the first flat face comprising a first toothed portion defining at least one circular portion around the first longitudinal axis, respectively around the second longitudinal axis.In addition, this first locking assembly includes a second piece subjected to the first reinforcement structure, respectively to the second reinforcement structure, the second piece comprising a second flat face disposed perpendicular to the first longitudinal axis, respectively to the second longitudinal axis, and opposite the first flat face when the first load-bearing element and the first reinforcement structure, respectively the second load-bearing element and the second reinforcement structure, are assembled together, the second flat face comprising a second toothing defining at least a second circular portion around the first longitudinal axis, respectively around the second longitudinal axis.In addition, this first locking assembly includes a first sliding pivot joint arranged along the first longitudinal axis, respectively along the second longitudinal axis, between the first piece and the second piece when the first load-bearing element and the first reinforcing structure, respectively the second load-bearing element and the second reinforcing structure, are assembled together.Furthermore, this first locking assembly includes a first clamping system configured to exert pressure along the first longitudinal axis, or respectively along the second longitudinal axis, on the first and second parts so as to bring them together during clamping. This bringing together allows the first and second teeth to mesh. The clamping system is configured to maintain this close position during clamping and to allow the first and second parts to separate during loosening, so as to disengage the first tooth from the second tooth. Preferably, the first clamping system includes a first return element configured to separate the first and second parts during loosening, so as to systematically disengage the first tooth from the second tooth during loosening.A second design of this first embodiment of the display device of the invention remains conceivable, according to which the first locking system and the second locking system are made up of a single locking system comprising at least one second locking assembly, preferably two. This second locking assembly includes a third part attached to the first reinforcing structure and comprising a third flat face arranged perpendicular to the third longitudinal axis when the first reinforcing structure is assembled with the stiffening element, the third flat face comprising a third toothed section defining at least one third circular portion around the third longitudinal axis.Furthermore, this second locking assembly includes a fourth component attached to the second reinforcement structure and comprising a fourth flat face arranged perpendicular to the third longitudinal axis and opposite the third flat face when the second reinforcement structure is assembled with the stiffening element. This fourth flat face includes a fourth toothed section defining at least one fourth circular portion around the third longitudinal axis. In addition, this second locking assembly includes a second sliding pivot joint arranged along the third longitudinal axis between the third component and the fourth component when the first reinforcement structure and the second reinforcement structure are assembled with the stiffening element.Furthermore, this second locking assembly includes a second clamping system configured to exert pressure along the third longitudinal axis on the third and fourth parts, bringing them closer together during tightening. This bringing them closer allows the third and fourth teeth to mesh. The second clamping system is configured to maintain this close position during tightening and to allow the third and fourth parts to separate during loosening, thus disengaging the third tooth from the fourth. Preferably, the second clamping system includes a second return mechanism configured to separate the third and fourth parts during loosening, thus systematically disengaging the third tooth from the fourth.

[0035] According to a third embodiment of the display device of the invention, the fourth assembly system is configured to removably assemble the first reinforcement structure with said first load-bearing element; the fifth assembly system is configured to removably assemble the first reinforcement structure with the stiffening element; the sixth assembly system is configured to removably assemble the second reinforcement structure with the second load-bearing element; and the seventh assembly system is configured to removably assemble the second reinforcement structure with the stiffening element. Thus, the display device is completely demountable in a storage position. In other words, the first load-bearing element, the second load-bearing element, the first reinforcement structure,The second reinforcement structure and the stiffening element are separated in the storage position of the display device. According to a fourth embodiment of the display device of the invention, as an alternative to the aforementioned third embodiment, the fourth assembly system is configured to removably assemble the first reinforcement structure with said first load-bearing element, the fifth assembly system is configured to permanently assemble the first reinforcement structure with the stiffening element, the sixth assembly system is configured to removably assemble the second reinforcement structure with the second load-bearing element, and the seventh assembly system is configured to permanently assemble the second reinforcement structure with the stiffening element.The fifth assembly system comprises first means for folding the first reinforcement structure against the stiffening element, and the seventh assembly system comprises second means for folding the second reinforcement structure against the stiffening element. Thus, the stiffening element and the first and second reinforcement structures remain assembled together, the latter being detached from the first and second load-bearing elements, in a storage position for the display device. According to a fifth embodiment of the display device of the invention, as an alternative to the third and fourth embodiments mentioned above, the fourth assembly system is configured to permanently assemble the first reinforcement structure with said first load-bearing element, and the fifth assembly system is configured to removably assemble the first reinforcement structure with the stiffening element.The sixth assembly system is configured to permanently assemble the second reinforcement structure with the second load-bearing element, and the seventh assembly system is configured to removably assemble the second reinforcement structure with the stiffening element. The fourth assembly system includes third means for folding the first reinforcement structure against the first load-bearing element, and the sixth assembly system includes fourth means for folding the second reinforcement structure against the second load-bearing element. Thus, the first load-bearing element and the first reinforcement structure remain assembled, the second load-bearing element and the second reinforcement structure remain assembled, while the stiffening element is detached from said first and second reinforcement structures, in a storage position for the display device.

[0036] According to these third, fourth and fifth embodiments mentioned above, "assembling in a removable manner" means allowing easy disassembly without any tools, for example by implementing a snap-fit ​​or snap-fit ​​assembly.The term "permanent assembly" means either not being able to disassemble the first and second reinforcement structure of the stiffening element or the first and second load-bearing elements, or requiring tools or prior disassembly of parts on the first and second load-bearing elements or on the stiffening element, for example a clamping nut, in order to then disassemble the first and second reinforcement structure of the first and second load-bearing elements or the stiffening element, for example by providing a split ring that can be opened by unscrewing a screw using a screwdriver, a flat wrench or a hex key (ALLEN® wrench), or by providing a closed ring mounted on the first and second load-bearing elements or on the stiffening element and held permanently on it by means of a clamping nut.These third, fourth and fifth embodiments mentioned above may be combined with the first or second embodiment mentioned above.

[0037] According to a sixth embodiment of the display device of the invention, the first assembly system is configured to removably assemble the first load-bearing element and the first lateral edge of the first flexible display support, the second assembly system is configured to removably assemble the second load-bearing element and the first lateral edge of the second flexible display support, and the third assembly system is configured to removably assemble the stiffening element with the second lateral edge of the first flexible display support and with the second lateral edge of the second flexible display support.

[0038] According to a seventh embodiment of the display device of the invention, as an alternative to the aforementioned sixth embodiment, the first assembly system is configured to removably assemble the first load-bearing element and the first lateral edge of the first flexible display support, the second assembly system is configured to removably assemble the second load-bearing element and the first lateral edge of the second flexible display support, and the third assembly system is configured to permanently assemble the stiffening element with the second lateral edge of the first flexible display support and with the second lateral edge of the second flexible display support.

[0039] According to the sixth and seventh embodiments mentioned above, "removable assembly" means allowing easy disassembly without any tools, for example, by using hook-and-loop fasteners (more commonly known as VELCRO® tape), zippers, or snap fasteners. "Permanent assembly" means either that the stiffening element of the first and second display supports cannot be disassembled, or that tools are required to disassemble the stiffening element of the first and second flexible display supports, such as a screwdriver, a wrench, or an Allen wrench for removing bolts or screws.

[0040] These sixth and seventh embodiments mentioned above may be combined with the third, fourth or fifth embodiment mentioned above and / or with the first or second embodiment mentioned above.

[0041] According to an eighth embodiment of the display device of the invention, it comprises a keying system configured to ensure correct assembly of, firstly, the first reinforcement structure on the first load-bearing element and the stiffening element, and secondly, the second reinforcement structure on the second load-bearing element and the stiffening element. This eighth embodiment may be combined with the aforementioned sixth or seventh embodiment and / or with the aforementioned third, fourth, or fifth embodiment and / or with the aforementioned first or second embodiment.

[0042] According to a ninth embodiment of the display device of the invention, the first and second flexible display media comprise prints using phosphorescent or fluorescent ink. Of course, variations using conventional inks, adapted to the material used to manufacture these first and second flexible display media, remain possible within the scope of the invention. This ninth embodiment may be combined with the eighth embodiment and / or with the aforementioned sixth or seventh embodiment and / or with the aforementioned third, fourth, or fifth embodiment and / or with the aforementioned first or second embodiment.

[0043] Brief description of the figures

[0044] The features and advantages of the invention will become apparent from the following description, which is supported by figures, including:

[0045] [Fig. 1]: Figure 1 illustrates a display device according to the invention mounted on an external support of the guardrail type;

[0046] [Fig. 2]: Figure 2 illustrates a first embodiment of the display device according to the invention, in the stored or folded position;

[0047] [Fig. 3]: Figure 3 illustrates the first embodiment of the display device of Figure 2, in assembled or deployed position;

[0048] [Fig. 4]: Figure 4 illustrates a cross-sectional view of a first load-bearing element and a second load-bearing element on this first embodiment of the display device of Figures 2 and 3;

[0049] [Fig. 5]: Figure 5 illustrates an end portion of the first load-bearing element on this first embodiment of the display device;

[0050] [Fig. 6]: Figure 6 illustrates a cross-sectional view of an end portion of the first load-bearing element or the second load-bearing element, according to this first embodiment of the display device illustrated in figures 2 and 3;

[0051] [Fig. 7]: Figure 7 illustrates a first end portion of a reinforcing bar constituting a part of a first reinforcing structure or a second reinforcing structure on the display device according to this first embodiment of Figures 2 and 3; [Fig. 8]: Figure 8 illustrates a second end portion of the reinforcing bar, opposite the first end portion illustrated in Figure 7;

[0052] [Fig. 9]: Figure 9 illustrates an end portion of a stiffening element of the display device according to this first embodiment illustrated in figures 2 and 3;

[0053] [Fig. 10]: Figure 10 illustrates a view similar to that of Figure 3 of the display device according to this first embodiment in assembled position, from which a first flexible display support and a second flexible display support have been removed.

[0054] [Fig. 11]: Figure 11 illustrates only the first flexible display support and the second flexible display support for this first embodiment of the display device;

[0055] [Fig. 12]: Figure 12 illustrates in cross-section the first end portion of the reinforcing bar, illustrated in Figure 7, mounted on an end portion of one of the first and second load-bearing elements, a locking system locking said end portions together; [Fig. 13]: Figure 13 illustrates a second embodiment of the display device according to the invention, in the stored or folded position;

[0056] [Fig. 14]: Figure 14 illustrates the second embodiment of the display device of Figure 13, in assembled or deployed position;

[0057] [Fig. 15]: Figure 15 illustrates the first and second load-bearing elements assembled respectively with first and second reinforcement structures, on this second embodiment of the display device, said first and second reinforcement structures being in a folded position on this figure 15 and each consisting of two reinforcement bars;

[0058] [Fig. 16]: Figure 16 illustrates one of the two reinforcement bars on one of the first or second reinforcement structures, on this second embodiment of the display device, in the folded-down position illustrated in Figure 15;

[0059] [Fig. 17]: Figure 17 illustrates a first end portion of the reinforcing bar of Figure 16, intended to be assembled with one of the end portions of one of the first or second load-bearing elements, said first end portion being in the folded-down position illustrated in Figure 15;

[0060] [Fig. 18]: Figure 18 illustrates the reinforcement bar of Figure 16, in the deployed position, as also illustrated in Figure 14;

[0061] [Fig. 19]: Figure 19 illustrates the first end portion of the reinforcement bar of Figure 17, in the deployed position;

[0062] [Fig. 20]: Figure 20 illustrates the stiffening element permanently assembled with first and second flexible display supports, said first and second flexible display supports being made of one and the same flexible display support on this second embodiment of the display device which is the subject of the invention;

[0063] [Fig. 21]: Figure 21 illustrates said flexible display support constituting the first and second flexible display supports, intended to be permanently assembled with the stiffening element, as in Figure 20;

[0064] [Fig. 22]: Figure 22 illustrates part of a locking system implemented on an end portion of one of the first or second load-bearing elements and intended to receive a second part of said locking system implemented on the first end portion of a reinforcing bar as illustrated in particular in figures 17 and 19;

[0065] [Fig. 23]: Figure 23 illustrates a keying system implemented between the first part of the locking system illustrated in Figure 22 and the second part of the locking system illustrated in Figures 17 and 19;

[0066] [Fig. 24] illustrates a variant of the implementation of a locking system between reinforcement bars of the first and second reinforcement structures and a stiffening element, on a third conceivable embodiment of the display device according to the invention;

[0067] [Fig. 25]: Figure 25 illustrates a fourth embodiment of the display device according to the invention, in the stored or folded position;

[0068] [Fig. 26]: Figure 26 illustrates the fourth embodiment of the display device of Figure 25, in assembled or deployed position, according to a first viewpoint;

[0069] [Fig. 27]: Figure 27 illustrates the fourth embodiment of the display device of Figure 25, in assembled or deployed position, from a second viewpoint;

[0070] [Fig. 28]: Figure 28 illustrates a partial enlargement of Figure 27 showing in particular a first end portion of a reinforcing bar assembled with one of the end portions of a first load-bearing element;

[0071] [Fig. 29]: Figure 29 illustrates a keying system implemented between one of the load-bearing elements and one of the reinforcing bars; [Fig. 30]: Figure 30 illustrates a second of the load-bearing elements with the reinforcing bars in the folded position and held together by fastening pieces;

[0072] [Fig. 31]: Figure 31 illustrates a partial enlargement of Figure 30 showing a portion of the upper end of the second load-bearing element and a fastening piece between the two reinforcing bars in the folded position.

[0073] Detailed description

[0074] Further in the description:

[0075] - the same references are used to describe the same characteristics on the display device and for the various embodiments of said display device, unless otherwise indicated in the text;

[0076] - terms such as "top", "bottom", "lower", "upper", "front", "rear", "lateral"... which may be used, will be in consideration of a position of use of the display device, placed on a railing of a balcony or window, the user being placed behind said display device, i.e. on the open rear side of said display device.

[0077] Figure 1 shows a display device 1 in its operating position, attached to an external support which, in this figure 1, is a railing 100 of a balcony or window. Of course, this external support could be different, for example, a wire mesh fence, a pole, a wall, or a window. The display device 1 comprises a first load-bearing element 2, a second load-bearing element 3, a first flexible display support 4, a second flexible display support 5, a stiffening element 6, a first reinforcing structure 7, and a second reinforcing structure 8. The first flexible display support 4 is arranged between the first load-bearing element 2 and the stiffening element 6. The second flexible display support 5 is arranged between the second load-bearing element 3 and the stiffening element 6. The first reinforcing structure 7 is arranged between the first load-bearing element 2 and the stiffening element 6.The second reinforcement structure 8 is arranged between the second load-bearing element 3 and the stiffening element 6. The first and second load-bearing elements 2, 3 are fixed to the guardrail 100 respectively by means of first and second fastening systems 9, 10 which will be adapted to the external support, for example clamps in the case of the guardrail 100.

[0078] Figures 2 to 12 refer to a first embodiment of the display device 1 of the invention, Figures 13 to 23 refer to a second embodiment of the display device 1 of the invention, Figure 24 refers to a third embodiment of the display device 1 of the invention, and Figures 25 to 31 refer to a fourth embodiment of the display device 1 of the invention. These four embodiments of the display device 1 are not limiting; other embodiments remain possible, for example, by combining certain features of these four embodiments of the display device 1, which will be described below.

[0079] Figure 2 shows the display device 1 in its stowed position, also known as the folded position, while Figure 3 shows the display device 1 in its operating position, also known as the assembled or deployed position. The first load-bearing element 2 defines a first longitudinal axis XI, the second load-bearing element 3 defines a second longitudinal axis X2, and the stiffening element 6 defines a third longitudinal axis X3. These three longitudinal axes XI, X2, and X3 remain more or less parallel to each other in both the folded and deployed positions.

[0080] In the folded position, the first flexible display support 4 and the second flexible display support 5 are wound around the first and second longitudinal axes XI and X2, respectively. In the deployed position, the first flexible display support 4 and the second flexible display support 5 are unwound from said first and second longitudinal axes XI and X2, respectively. For this purpose, the first and second support elements 2 and 3 comprise a first winding system 11 and a second winding system 12, respectively. These first and second winding systems 11 and 12 each comprise a winding tube 13 and a housing 14, as illustrated in Figure 4. The winding tube 13 is placed in the housing 14 and mounted for rotation relative to it, around the first longitudinal axis XI, or the second longitudinal axis X2, respectively, depending on whether it is the first support element 2 or the second support element 3.

[0081] On each of the first and second winding systems 11, 12, two rollers 15, 16 are attached respectively to the two ends of the winding tube 13 and positioned externally opposite the two ends 14a, 14b of the housing 14. Manipulating either of the rollers 15, 16 rotates the winding tube 13 around the first longitudinal axis XI, or the second longitudinal axis X2 respectively, to wind the first flexible display support 4, or the second flexible display support 5, onto it. Pulling on the first flexible display support 4, or the second flexible display support 5 respectively, unwinds it from the winding tube 13 without requiring manipulation of either of the rollers 15, 16, although this remains possible for unwinding the first and second flexible display supports 4, 5.A variant could be envisaged for the first and second winding systems 11, 12, by removing the two wheels 15, 16 and adding an automatic winding mechanism configured to rotate the winding tube 13 under the action of a helical spring, around the first longitudinal axis XI, respectively the second longitudinal axis X2, in order to wind the first flexible display support 4, respectively the second flexible display support 5, onto said winding tube 13. Such an automatic winding mechanism exists for example on certain designs of blackout blinds which are mounted at the level of glazed door or window openings.

[0082] With regard in particular to figures 3, 4, 5, 9, 10 and 11, a first assembly system 17 is arranged between the first load-bearing element 2 and the first flexible display support 4. Similarly, a second assembly system 18 is arranged between the second load-bearing element 3 and the second flexible display support 5. In addition, a third assembly system 19 is arranged between the stiffening element 6 and the first and second flexible display supports 4, 5.

[0083] The first assembly system 17 includes a first flexible band 20 which includes a first bead 21 extending along the length of a first edge 20a of this first flexible band 20, said first bead 21 being housed in the winding tube 13 of the first winding system 11, which is hollow, as shown in Figure 4, which allows said first edge 20a to be fixed to said winding tube 13. This first flexible band 20 includes a second edge 20b, opposite the first edge 20a, along the length of which extends a first fastening member 23 intended to cooperate with a first complementary fastening member 24 arranged along a first lateral edge 4a of the first flexible display support 4.The first fastening element 23 is preferably made up of a band of loops / hooks and the first complementary fastening element 24 is preferably made up of a band of hooks / loops, said loop / hook and hook / loop bands being more commonly called VELCRO® bands.

[0084] Similarly, the second assembly system 18 includes a second flexible band 25 which includes a second bead 26 extending along the length of a first edge 25a of this second flexible band 25, said second bead 26 being housed in the winding tube 13 of the second winding system 12, which is hollow, as shown in Figure 4, which allows said first edge 25a to be fixed to said winding tube 13. This second flexible band 25 includes a second edge 25b, opposite the first edge 25a, along the length of which extends a second fastening member 27 intended to cooperate with a second complementary fastening member 28 arranged along a first lateral edge 5a of the second flexible display support 5.The second fastening element 27 is preferably made up of a band of loops / hooks and the second complementary fastening element 28 is preferably made up of a band of hooks / loops, said loop / hook and hook / loop bands being more commonly called VELCRO® bands.

[0085] The third fastening system 19 comprises a third flexible band 29 extending largely along the length of the stiffening element 6. The middle portion of this third flexible band 29 is permanently attached to the stiffening element 6 by means of fasteners 30, which, as shown in Figures 2, 3, 9, and 10, are preferably bolts. This third flexible band 29 thus defines a first flexible band portion 29a and a second flexible band portion 29b, each on one side of the stiffening element 6. On the first flexible band portion 29a, a third fastener 31 is arranged to cooperate with a third complementary fastener 32 arranged along a second lateral edge 4b ​​of the first flexible display support 4.The third fastening element 31 preferably consists of a band of loops / hooks, and the third complementary fastening element 32 preferably consists of a band of hooks / loops, said loop / hook and hook / loop bands being more commonly known as VELCRO® strips. On the second flexible strip 29b, a fourth fastening element 33 is arranged to cooperate with a fourth complementary fastening element 34 arranged along a second lateral edge 5b of the second flexible display support 5. The fourth fastening element 33 preferably consists of a band of loops / hooks, and the fourth complementary fastening element 34 preferably consists of a band of hooks / loops, said loop / hook and hook / loop bands being more commonly known as VELCRO® strips.

[0086] Thus, the first and second flexible display supports 4 and 5 can be easily removed from the first and second load-bearing elements 2 and 3 and the stiffening element 6, allowing for easy replacement, particularly for changing the display. As such, the first and second flexible display supports 4 and 5 are capable of receiving ink printing. This ink may be phosphorescent or fluorescent. For example, the first and second flexible display supports 4 and 5 can display text such as "FOR SALE," "SOLD," "FOR RENT," "RENTED," as well as information on the name of the real estate agency or notary's office handling the sale or rental of the property, and photos of the real estate agents.The first and second flexible display supports 4, 5, as well as the first, second and third flexible strips 20, 25, 29, may be made of a textile material or a plastic material.

[0087] With regard in particular to figures 2 and 3, the first reinforcement structure 7 comprises two first reinforcement bars 35, 36 and, similarly, the second reinforcement structure 8 comprises two second reinforcement bars 37, 38. The first two reinforcement bars 35, 36 are mounted removably with the first load-bearing element 2, by means of a fourth assembly system 39, and with the stiffening element 6, by means of a fifth assembly system 40, one of the first two reinforcement bars 35 being disposed on the upper side of the display device 1 and the other of the first two reinforcement bars 36 being disposed on the lower side of the display device 1, the first two reinforcement bars 35, 36 being parallel to each other, when the display device 1 is in the deployed position.The two second reinforcement bars 37, 38 are removably mounted to the second load-bearing element 3 by means of a sixth assembly system 41, and to the stiffening element 6 by means of a seventh assembly system 42. One of the two second reinforcement bars 37 is positioned on the upper side of the display device 1, and the other of the first two reinforcement bars 38 is positioned on the lower side of the display device 1. The two second reinforcement bars 37, 38 are parallel to each other when the display device 1 is in its deployed position. The first two reinforcement bars 35, 36 and the two second reinforcement bars 37, 38 are of identical design, differing only in their mounting orientation, depending on whether the reinforcement bars are on the upper or lower side of the display device 1, on the side of the first load-bearing element 2, or on the side of the second load-bearing element 3.Similarly, the fourth assembly system 39 and the sixth assembly system 41 are of identical design and, the fifth assembly system 40 and the seventh assembly system 42 are of identical design.

[0088] With particular reference to Figures 5 to 7 and 12, the fourth assembly system 39 comprises, on an upper end portion 2a of the first load-bearing element 2, a cover 43 that closes an upper end 14a of the housing 14. This cover 43 includes an external flat face 44 on which is arranged a first toothed section 45, which is preferably circular, although a circular portion is also possible. The cover 43 includes a central recess 46 that opens onto the external flat face 44, inside the first toothed section 45, as shown in Figure 6. This central recess 46 receives a retractable part 47, which is mounted in translation along the first longitudinal axis XI inside the central recess 46. A spring 48 is mounted in compression between a first end plate 49 on the central recess 46 and a second end plate 50 on the retractable part 47.

[0089] The hood 43 also includes a central rod 51 which passes through the retractable part 47 and extends outwards along the first longitudinal axis XI, the end portion 51 of the central rod 51 being threaded. This central rod 51 is hollow and allows the passage of an upper end portion 13a of the winding tube 13, the wheel 15 being secured to the end of the winding tube 13, for example by means of a splined or keyed mounting, accompanied by a fitting or snap-fit ​​of the wheel 15 onto the end of the winding tube 13. The central rod 51 thus constitutes a bearing support for the winding tube 13. The end portion 51a of the rod 51, which is threaded, receives by screwing a clamping nut 52, positioned under the wheel 15, as illustrated in figures 5 and 6.

[0090] The first reinforcing bar 35 comprises, at a first end 35a, a first ring 53 having a slot 54 dimensioned to allow the first ring 53 to engage with a tubular portion 51b of the central rod 51, located below the threaded end portion 51a. The first ring 53 is thus positioned between the external flat face 44 of the cover 43 and the clamping nut 52. This first ring 53 comprises a flat face 55 provided with a second toothing 56 defined on a circular portion delimited by the slot 54, said flat face 55 being positioned opposite the external flat face 44 of the cover 43 when the first reinforcing bar 35 is mounted on the upper end portion 2a of the first load-bearing element 2.

[0091] The assembly is carried out with the clamping nut 52, which is initially in a loosened position, as illustrated in Figure 6. Once the first ring 53 is engaged on the tubular portion 51b of the central rod 51, thanks to the presence of the slot 54, the central rod 51 can pivot and translate slightly relative to the first longitudinal axis XL. The clamping nut

[0092] 52 can then be tightened, which brings the flat face 55 of the first ring 53 closer to the external flat face 44 of the cover 43, until the second toothing 56 on the first ring

[0093] 53 engages with the first toothed portion 45 on the outer face 44, thus blocking the rotation and translation of the first ring 53 along the first longitudinal axis XI, relative to the upper end portion 2a of the first supporting element 2. The flat face 55 of the first ring 53 includes a protruding annular portion 57 which, when the clamping nut 52 is tightened, pushes in the retractable part 47 and thus compresses the spring 48, said protruding annular portion 57 being placed in the housing 46. The first ring 53 therefore cannot disengage from the tubular portion 51b of the central rod 51.When the clamping nut 42 is loosened to remove the display device 1, the spring 48 pushes back the retractable part 47 and, consequently, the first ring 53. This allows the first toothed portion 45 and the second toothed portion 56 to disengage automatically, and the protruding annular portion 57 to move out of the housing 46. This disengages the first ring 53 from the tubular portion 51b of the central rod 51, thus detaching the first reinforcing bar 35 from the upper end portion 2a of the first load-bearing element 2. A variant without this retractable part 47 and without this spring 48 could be considered. In this version, the user would have to manually disengage the second toothed portion 56 from the first toothed portion 45 to rotate the first reinforcing bar 35 relative to the central rod 51 in order to change the orientation of the first reinforcement bar 35 relative to the first load-bearing element 2.

[0094] The same design applies, mutatis mutandis, for the mounting of the other first reinforcing bar 36 with the lower end portion 2b of the first supporting element 2, and similarly for the mounting of the two second reinforcing bars 37, 38 with respectively the upper end portion 3a of the second supporting element 3 and the lower end portion 3b of the second supporting element 3. Indeed, the mounting is identical to that described previously for the part of the sixth assembly system 41 implemented between the upper end portion 3a of the second supporting element 3 and the first end 37a of the second reinforcing bar 37, on the upper side of the display device 1.In addition, it is sufficient to reverse the directions of the parts (hood 43, first ring 53, clamping nut 52) ​​for the parts of the fourth and sixth assembly systems 39, 41 implemented between the lower end portions 2b, 3b of the first and second load-bearing elements 2, 3 and the first ends 36a, 38a of the first and second reinforcing bars 36, 38, on the lower side of the display device 1.

[0095] Thus, on this first embodiment of the display device 1, the fourth assembly system 39 and the sixth assembly system 41 comprise respectively a first locking system 81 and a second locking system 82 between the first and second load-bearing elements 2, 3 and respectively the first two and second two reinforcing bars 35, 36, 37, 38. With regard in particular to figures 8, 9 and 10, the fifth assembly system 40 and the seventh assembly system 42 comprise, on an upper end portion 6a of the stiffening element 6, respectively a first tubular part 58 and a second tubular part 59 and, on a lower end portion 6b of the stiffening element 6, respectively a third tubular part 60 and a fourth tubular part 61.The first two reinforcing bars 35, 36 of the first reinforcing structure 7 and the second two reinforcing bars 37, 38 of the second reinforcing structure 8 each include at their second ends 35b, 36b, 37b, 38b a second open ring 62 which is configured to snap onto said first, second, third or fourth tubular parts 58, 59, 60, 61, so that once said snappings have been made, the first reinforcing bars 35, 36 and the second reinforcing bars 37, 38 can rotate around the third longitudinal axis X3 while remaining snapped with the stiffening element 6.

[0096] During the assembly of the display device 1 according to this first embodiment of the figures

[0097] 2 to 12, that is, during the transition from the folded to the deployed position, the two flexible display supports 4, 5 are deployed by pulling on the stiffening element 6 or by turning one or both of the knobs 15, 16. Then, the first rings 53 at the first ends 35a, 36a, 37a, 38a of the first and second reinforcing bars 35, 36, 37, 38 are engaged on the tubular portions 51b of the central rods 51, on the covers 43 arranged at the upper 14a and lower 14b ends of the housings 14, and on the first and second supporting elements 2, 3. The first reinforcing bars 35, 36 can then pivot and translate slightly along the first longitudinal axis XI of the first supporting element 2, and similarly, the second reinforcing bars 37, 38 can then pivot and slightly translate along the second longitudinal axis X2 of the second load-bearing element 3.Next, the second rings 62 at the second ends 35b, 36b, 37b, 38b of the first and second reinforcing bars 35, 36, 37, 38 are engaged on the first, second, third, and fourth tubular sections 58, 59, 60, 61 of the stiffening element 6, the first reinforcing bars 35, 36 and the second reinforcing bars 37, 38 thus being able to rotate around the third longitudinal axis X3. The first load-bearing element 2 and the second load-bearing element 3 are brought closer together by pivoting the second reinforcing structure 8 to fold it against the first reinforcing structure 7, which then allows the first fastening system 9 of the first load-bearing element 2 to be put in place to fix it to the guardrail 100. Then the second load-bearing element.

[0098] 3 is pivoted about the third longitudinal axis X3, which simultaneously pivots the first rings 53 about the first and second longitudinal axes XI, X2, and the second fastening system 10 of the second load-bearing element 3 is put in place for its fixing in a suitable position on the guardrail 100. Finally, the clamping nuts 52 are tightened, which translates the first rings 53 about the first and second longitudinal axes XI, X2 so that the second teeth 56 mesh with the first teeth 45 on the covers 43, thus completely locking the first and second reinforcing bars 35, 36, 37, 38 with respect to the first and second load-bearing elements 2, 3. The display device 1 is thus completely immobilized on the guardrail 100.

[0099] As shown in particular in Figures 3, 4, and 10, the first and second fastening systems 9 and 10 each include passage openings 63 arranged along the rear side of the housing 14. These passage openings 63 allow the passage of fastening straps 64, for example, COLSON® or RILSAN® type cable ties or straps with fastening loops (not shown). This allows for optimal adjustment of the position of the fastening straps 64 along the first and second load-bearing elements 2 and 3, depending on the configuration of the guardrail 100 or any other external support. Of course, these fastening straps 64 can be replaced by other fastening devices adapted to the external support.

[0100] The second embodiment of the display device 1, illustrated opposite Figures 13 to 23, is very similar to that described previously opposite Figures 2 to 12. The preceding description therefore applies to all common parts of this second embodiment of the display device 1. The design of the first and second winding tubes 2, 3 is identical. The design of the stiffening element 6 is also identical. The first flexible display support 4 and the second flexible display support 5 are made of a single piece, forming a single flexible display support 65, which is folded in half along the median 65a to form the first and second flexible display supports 4, 5. The stiffening element 6 is permanently fixed to this single flexible display support 65 along the median 65a by means of the fasteners 30, which are preferably bolts.The first supplementary fastening element 24 is arranged along a first lateral edge 66a of the flexible display support 65, that is, on the portion constituting the first lateral edge 4a of the first flexible display support 4. This first supplementary fastening element 24 cooperates with the first fastening element 23 arranged on the second edge 20b of the first flexible strip 20, the first edge 20a of which is attached to the winding tube 13 on the first supporting element 2, as explained for the first embodiment. The first fastening element 23 preferably consists of a strip of loops / hooks, and the first supplementary fastening element 24 preferably consists of a strip of hooks / loops. These loops / hooks and hooks / loops are more commonly known as VELCRO® strips.The second complementary fastening element 28 is arranged along a second lateral edge 66b of the flexible display support 65, i.e. on its part constituting the first lateral edge 5a of the second flexible display support 5, said second complementary fastening element 28 cooperating with the second fastening element 27 arranged on the second edge 25b of the second flexible band 25, the first edge 25a of which is attached to the winding tube 13 on the second carrier element 3. The second fastening element 27 is preferably made up of a band of loops / hooks and the second complementary fastening element 28 is preferably made up of a band of hooks / loops, said loop / hook and hook / loop bands being more commonly called VELCRO® bands.

[0101] With regard in particular to figures 15 to 19, the first and second reinforcement structure 7, 8 comprise respectively two first reinforcement bars 67, 68 and two second reinforcement bars 69, 70, all of the same design which differs in part from that for the first and second reinforcement bars 35, 36, 37, 37 of the display device 1 according to the first embodiment described with regard to figures 2 to 12.In Figures 15 to 19, the first and second reinforcing bars 67, 68, 69, 70 each include, at their first end 67a, 68a, 69a, 70a, a third ring 71 which is completely closed and engages with the tubular portion 51b of the central rod 51 on the cover 43 after first removing the clamping nut 52. This nut is then screwed onto the threaded end portion 51a of the central rod 51, thus ensuring a permanent connection between the third rings 71 at the first ends 67a, 68a of the first reinforcing bars 67, 68, and the upper end portions 2a and lower end portions 2b of the first load-bearing element 2, and similarly, at the first ends 69a, 70a of the second reinforcing bars 69, 70, and the upper end portions 3a and lower end portions 3b of the second load-bearing element 3.The second ends 67b, 68b, 69b, 70b each comprise a second open ring 62 as already described on the first embodiment of the display device 1, the second rings 62 snapping removably onto the first, second, third and fourth tubular parts 58, 59, 60, 61 of the stiffening element 6.

[0102] With particular reference to Figures 16 to 19, the third ring 71 includes an extension 72 which defines a housing 73, the first ends 67a, 68a, 69a, 70a of the first and second reinforcing bars 67, 68, 69, 70 being mounted in a pivot joint about a fourth axis X4, which is perpendicular to the first or second longitudinal axis XI, X2 when the third rings 71 are mounted on the first and second load-bearing elements 2, 3. This allows the first and second reinforcing bars 67, 68, 69, 70 to pivot either into a folded position illustrated in Figures 16 and 17, in which the third ring 71 is more or less at right angles to the first or second reinforcing bar 67, 68, 69, 70, or into an extended position illustrated in Figures 18 and 19, in which the third ring 71 is more or less in the same plane as the first or second reinforcement bar 67, 68, 69, 70.The housing 73 includes two studs 74a, 74b which allow the first end 67a, 68a, 69a, 70a of the first or second reinforcement bar 67, 68, 69, 70 to be snapped into the deployed position, ensuring retention in said deployed position. Another retaining device could be envisaged in place of the housing 73 and the studs 74a, 74b, for example a sleeve (not illustrated) mounted sliding on the first ends 67a, 68a, 69a, 70a of the first and second reinforcing bars 67, 68, 69, 70, said sleeve engaging partly on the extension 72 and remaining partly on said first end 67a, 68a, 69a, 70a when the first or second reinforcing bar 67, 68, 69, 70 is in alignment with said extension 72, thus blocking rotation around the fourth axis X4.In the folded position, the first reinforcement bars 67, 68 are thus folded against the casing 14 of the first load-bearing element 2 and, similarly, the second reinforcement bars 69, 70 are folded against the casing 14 of the second load-bearing element 3.

[0103] With regard in particular to figures 17, 19, 22, 23, the third ring 71 comprises a flat face 75 which includes a circular toothing 76, as well as two slots 77, 78 on a circular portion. The cover 43 includes on its external flat face 44 the first toothed section 45 as already described previously for the first embodiment of the display device 1 and, in addition, a stud 79 extending from the external flat face 44. The slots 77, 78 and the stud 79 constitute a keying system 80 which ensures correct mounting of the first and second reinforcing bars 67, 68, 69, 70 on the first and second load-bearing elements 2, 3, the toothed section 76 on the third ring 71 being positioned opposite the first toothed section 45 on the cover 43. This also limits the pivoting of the third ring 71 around the first or second longitudinal axis XI or X2.

[0104] Thus, on this second embodiment of the display device 1, the fourth assembly system 39 and the sixth assembly system 41 comprise respectively a first locking system 81 and a second locking system 82 between the first and second load-bearing elements 2, 3 and respectively the first two and second two reinforcement bars 67, 68, 69, 70, as for the first embodiment of the display device 1 described previously.

[0105] During the assembly of the display device 1 according to this second embodiment of Figures 13 to 23, that is to say during the transition from the folded position illustrated in Figure 13 to the deployed position illustrated in Figure 14, the two flexible display supports 4, 5 are deployed by pulling on the stiffening element 6 or by turning one and / or the other of the knobs 15, 16, then the first and second reinforcing bars 67, 68, 69, 70 are pivoted about the axis X4 relative to the third rings 71 in the deployed position illustrated in particular in Figures 14 and 18. The first reinforcing bars 67, 68 can then pivot and translate slightly about the first longitudinal axis XI of the first supporting element 2 and, similarly, the second reinforcing bars 69, 70 can then pivot and translate slightly about the second longitudinal axis X2 of the second supporting element 3.Next, the second rings 62 at the second ends 67b, 68b, 669b, 70b of the first and second reinforcing bars 67, 68, 69, 70 are engaged on the first, second, third, and fourth tubular sections 58, 59, 60, 61 of the stiffening element 6, as in the first embodiment, the first reinforcing bars 67, 68 and the second reinforcing bars 69, 70 thus being able to rotate around the third longitudinal axis X3. The first load-bearing element 2 and the second load-bearing element 3 are brought closer together by pivoting the second reinforcing structure 8 to fold it against the first reinforcing structure 7, which then allows the first fastening system 9 of the first load-bearing element 2 to be put in place to properly fix it to the guardrail 100.Then the second load-bearing element 3 is pivoted about the third longitudinal axis X3, which simultaneously pivots the third rings 71 about the first and second longitudinal axes XI, X2, and the second fastening system 10 of the second load-bearing element 3 is put in place for its fixing in a suitable position on the guardrail 100. Finally, the clamping nuts 52 are tightened, which translates the third rings 71 about the first and second longitudinal axes XI, X2 so that the circular teeth 76 mesh with the first teeth 45 on the covers 43, thus completely locking the first and second reinforcing bars 67, 68, 69, 70 with respect to the first and second load-bearing elements 2, 3. The display device 1 is thus completely immobilized on the guardrail 100.

[0106] A third embodiment is shown in Figure 24, in which the first locking system 81 secures the first reinforcement structure 7 to the stiffening element 6 rather than to the first load-bearing element 2, as is the case for the first and second embodiments of the display device 1 described previously. Similarly, in this third embodiment, the second locking system 82 secures the second reinforcement structure 8 to the stiffening element 6 rather than to the second load-bearing element 3, as is the case for the first and second embodiments of the display device 1 described previously. According to this third embodiment, the stiffening element 6 comprises, at its two end portions (upper 6a and lower 6b), an assembly piece 83 including a rod 84 with a tubular portion 84a and a threaded portion 84b.The first reinforcing bars 85 each have a fourth ring 86 at their second end 85b, and the second reinforcing bars 87 each have a fifth ring 88 at their second end 87b. The fourth rings 86 and fifth rings 88 are of a design similar to that of the first ring 53 described for the first embodiment. The fourth rings 86 have a flat face 89 with teeth on a circular portion (not shown, but comparable to the second set of teeth 56 shown in Figure 7 for the first embodiment) and a slot 90. Similarly, the fifth rings 88 have a flat face 91 with teeth 92 on a circular portion and a slot 93, as illustrated in Figure 24. The flat face 89 of the fourth ring 86 and the flat face 91 of the fifth ring 91 are arranged opposite each other. A clamping nut 94 is screwed onto the threaded portion 84b of the rod 84.The fourth and fifth rings 86, 88 can be engaged on the tubular portion 84a of the rod by inserting them through the slots 90, 93, which allows the first and second reinforcing arms 85, 87 to pivot and slightly translate along the third longitudinal axis X3, relative to the stiffening element 6. Tightening the clamping nut 94 brings it closer to the main body of the assembly part 83 and, thus, brings the two flat faces 89, 91 closer together so that their teeth 92 mesh, thus locking the fourth and fifth rings 86, 88 with the stiffening element 6.The first ends (not shown) of the first and second reinforcing bars 85, 87 may each have a ring comparable to the third ring 71 of the second embodiment of the display device 1 and this amount in the same way, the circular teeth 76 present on the third ring 71 and the first circular teeth 45 on the cover 43 not being necessary in this third embodiment, since the locking of the first and second reinforcing structures 7, 8 is achieved with the stiffening element 6. A spring 95 may also allow the fourth and fifth rings 86, 88 to be automatically separated when the clamping nut 94 is loosened in order to disengage the teeth 92 of these fourth and fifth rings 86, 88.Thus, on this third embodiment of the display device 1, the fifth assembly system 40 and the seventh assembly system 42 respectively comprise a first locking system 81 and a second locking system 82, common between the first two and second two reinforcing bars 85, 87 and the stiffening element 6.

[0107] A fourth embodiment, not illustrated, could also be considered, in which the fourth ring 86 and the fifth ring 88 would be of a design similar to the third ring 71 described in the second embodiment of the device and also providing for extensions comparable to the extension 72 which defines a housing 73, the second ends 85b, 87b of the first and second reinforcing bars 85, 87 being mounted in a pivot joint about a fifth axis similar to the fourth axis X4 in the second embodiment, which is perpendicular to the third longitudinal axis X3 when the fourth and fifth rings 86, 88 are mounted on the stiffening element 6. This allows the first and second reinforcing bars 85, 87 to pivot either in a folded position against the stiffening element 6, or in a deployed position, at right angles to said stiffening element 6.

[0108] Thus, on this fourth embodiment of the display device 1, the fifth assembly system 40 and the seventh assembly system 42 respectively comprise a first locking system 81 and a second locking system 82, common between the first two and second two reinforcing bars 85, 87 and the stiffening element 6.

[0109] Another embodiment of the display device 1, illustrated opposite Figures 25 to 31, is very similar to that described previously opposite Figures 13 to 23, the preceding description therefore applying to all the parts common to this second variant of the display device 1. The design of the first and second winding tubes 2, 3 and that of the first and second reinforcement structures 7, 8 differ slightly since the first locking system 81 and the second locking system 82 between the first and second load-bearing elements 2, 3 and respectively the first two and second two reinforcement bars 67, 68, 69, 70 are no longer provided. The design of the stiffening element 6 is identical.The first flexible display support 4 and the second flexible display support 5 are preferably made of a single piece, forming a single flexible display support 65 which is folded in half along the median 65a to form said first and second flexible display supports 4 and 5. The stiffening element 6 is permanently fixed to this single flexible display support 65 along the median 65a by means of fastening elements 30, which are preferably bolts. The first additional fastening element 24 is arranged along a first lateral edge 66a of the flexible display support 65, that is to say, on its portion constituting the first lateral edge 4a of the first flexible display support.

[0110] 4, said first supplementary fastening element 24 cooperating with the first fastening element 23 arranged on the second edge 20b of the first flexible strip 20, the first edge of which (comparable to edge 20a of the first embodiment) is attached to the winding tube 13 on the first supporting element 2, as explained for the first embodiment. The first fastening element 23 preferably consists of a strip of loops / hooks, and the first supplementary fastening element 24 preferably consists of a strip of hooks / loops, said loop / hook and hook / loop strips being more commonly known as VELCRO® strips. The second supplementary fastening element 28 is arranged along a second lateral edge 66b of the flexible display support 65, that is to say, on its portion constituting the first lateral edge 5a of the second flexible display support.

[0111] 5, said second complementary fastening element 28 cooperating with the second fastening element 27 arranged on the second edge 25b of the second flexible band 25, the first edge of which (comparable to the edge 25a of the first embodiment) is subjected to the winding tube 13 on the second supporting element 3. The second fastening element 27 is preferably made up of a band of loops / hooks and the second complementary fastening element 28 is preferably made up of a band of hooks / loops, said loop / hook and hook / loop bands being more commonly called VELCRO® bands.

[0112] With reference to Figures 25 to 31, the first and second reinforcing structures 7 and 8 each comprise, respectively, two first reinforcing bars 67 and 68 and two second reinforcing bars 69 and 70, all of the same design, which include at their first end 67a, 68a, 69a, 70a a third ring 71 that is completely closed. As shown in Figure 29, the third ring 71 is pivotally engaged on a tubular portion 99 forming part of the cover 43 and protruding from the external flat face 44 of said cover 43. This tubular portion 99 forms a bearing that receives, in rotation about the second longitudinal axis X2, the upper end portion 13a of the winding tube 13 and the third ring 71.Figure 29 illustrates the upper end portion 3a of the second supporting element 3, but the design is identical with the lower end portion 3b of the second supporting element 3 and with the upper end portion 2a or the lower end portion 2b of the first supporting element 2. The knurled wheel 15, 16 is secured to the end portion of the winding tube 13, for example by means of a grooved or keyed fitting, accompanied by a fitting or snap-fit ​​of the knurled wheel 15, 16 onto the end portion of the winding tube 13, thus ensuring a permanent assembly of the third rings 71 to the first ends 67a, 68a of the first reinforcing bars 67, 68, with the upper end portions 2a and lower end portions 2b of the first supporting element 2 and, similarly, to the first ends 69a, 70a of the second reinforcing bars 69, 70, with the upper end portions 3a and lower end portions 3b of the second load-bearing element 3.The second ends 67b, 68b, 69b, 70b each comprise a second open ring 62 as already described on the first and second embodiments of the display device 1, the second rings 62 snapping removably onto the first, second, third and fourth tubular parts 58, 59, 60, 61 of the stiffening element 6.

[0113] With regard to Figures 25 to 31, the third ring 71 includes an extension 72 which defines a housing 73, the first ends 67a, 68a, 69a, 70a of the first and second reinforcing bars 67, 68, 69, 70 being mounted by pivot joint about a fourth axis X4, which is perpendicular to the first or second longitudinal axis XI, X2 when the third rings 71 are mounted on the first and second load-bearing elements 2, 3. This allows the first and second reinforcing bars 67, 68, 69, 70 to pivot either into a folded position illustrated in Figures 25, 30 and 31, in which the third ring 71 is more or less at right angles to the first or second reinforcing bar 67, 68, 69, 70, or into an extended position illustrated in Figures 26 to 29, in which the third ring 71 is more or less in the same plane as the first or second reinforcement bar 67, 68, 69, 70.The housing 73 includes two studs 74a, 74b which allow the first end 67a, 68a, 69a, 70a of the first or second reinforcement bar 67, 68, 69, 70 to be snapped into the deployed position, ensuring retention in said deployed position.

[0114] With particular reference to Figures 17, 19, 22, and 23, the third ring 71 comprises two slots 77 and 78 on a circular portion. The cover 43 includes on its outer flat face 44 a stud 79 which extends from the outer flat face 44 and is housed in one of the two slots 77 and 78. The slots 77 and 78 and the stud 79 constitute a keying system 80 which ensures correct mounting of the first and second reinforcing bars 67, 68, 69, and 70 on the first and second load-bearing elements 2 and 3. These studs 79 and slots 77 and 78 also limit the angular rotation of the first and second reinforcing bars 67, 68, 69, and 70 relative to the first and second load-bearing elements 2 and 3.During the assembly of the display device 1 according to this alternative embodiment of Figures 25 to 31, that is, during the transition from the folded position illustrated in Figure 25 to the deployed position illustrated in Figures 26 and 27, the two flexible display supports 4, 5 are deployed by pulling on the stiffening element 6 or by turning one or both of the knobs 15, 16. Then, the first and second reinforcing bars 67, 68, 69, 70 are pivoted about the X4 axis relative to the third rings 71 in the deployed position illustrated in particular in Figures 26 to 29. The first reinforcing bars 67, 68 can then pivot about the first longitudinal axis XI of the first supporting element 2, and similarly, the second reinforcing bars 69, 70 can then pivot about the second longitudinal axis X2 of the second supporting element 3, within the angular limit defined by lights 77, 78 and nipples 79.Next, the second rings 62 at the second ends 67b, 68b, 669b, 70b of the first and second reinforcing bars 67, 68, 69, 70 are engaged on the first, second, third, and fourth tubular sections 58, 59, 60, 61 of the stiffening element 6, as in the first and second embodiments, the first reinforcing bars 67, 68 and the second reinforcing bars 69, 70 thus being able to rotate around the third longitudinal axis X3. The first load-bearing element 2 and the second load-bearing element 3 are brought closer together by pivoting the second reinforcing structure 8 to fold it against the first reinforcing structure 7, which then allows the first fastening system 9 of the first load-bearing element 2 to be put in place to properly fix it to the guardrail 100.Then the second supporting element 3 is pivoted around the third longitudinal axis X3, which concomitantly pivots the third rings 71 around the first and second longitudinal axes XI, X2, and the second attachment system 10 of the second supporting element 3 is put in place for its fixing in a suitable position on the guardrail 100. Once the first and second supporting elements 2 and 3 are fixed on the guardrail 100, the angular position between the first reinforcement structure 7 and the second reinforcement structure 8, and consequently between the first flexible display support 4 and the second flexible display support 5, remains fixed, despite the absence of the first and second locking systems 81, 82.

[0115] With regard to Figures 25 to 27, 30 and 31, attachment pieces 101, 102, 103, 104 are mounted at the second ends 67b, 68b, 69b, 70b of the first and second reinforcement bars 67, 68, 69, 70 and remain attached to said second ends 67b, 68b, 69b, 70b in the deployed position of the display device 1, as shown in Figures 26 and 27. These attachment pieces 101, 102, 103, 104 could, conversely, be mounted at the first ends 67a, 68a, 69a, 70a of the first and second reinforcement bars 67, 68, 69, 70 and remain attached to said first ends 67a, 68a, 69a, 70a in the deployed position of the display device 1. In the folded position illustrated in figure 25, the attachment pieces 101, 102 ensure the assembled hold between the two reinforcement bars 67, 68 and the two attachment pieces 103, 104 ensure the assembled hold between the two reinforcement bars 69, 70.The attachment pieces 101, 102, 103, and 104 are preferably attached to the reinforcing bars 67, 68, 69, and 70 by snapping them into place; however, tightening around the bars is also possible. Such attachment pieces 101, 102, 103, and 104 may be designed according to the embodiment shown in Figures 13 to 23.

[0116] Another embodiment could be envisaged without the first and second winding systems 11, 12 on the first and second supporting elements 2, 3. In this case, the first and second flexible display supports 4, 5 could be wound manually around a tube similar to the winding tube 13, present on the first and second supporting elements 2, 3, or even around the stiffening element 6.

[0117] Other features can be envisaged within the framework of the invention for these various embodiments of the display device 1 described above, or even for other variants. In the presence of the first and second winding systems 11, 12 on the first and second carrier elements 2, 3, the housing 14 includes a slot 96 which includes on its two longitudinal edges 96a, 96b two scraping or sweeping members 97, 98 which allow the two faces of the first and second flexible display support 4, 5 to be rubbed during their winding onto the respective winding tubes 13, inside the housings 14 of said winding systems 11, 12.

[0118] The VELCRO® type hook / loop and loop strips used to implement the attachment elements and additional attachment elements on the various variants of the display device 1 described above, may be replaced for example by snap buttons, by ECLAIR® fasteners, or by DUAL LOCK® type pins marketed by the company 3M®.

[0119] It will also be possible to attach additional first and second flexible display supports (not shown), preferably also flexible, to the first and second flexible display supports 4 and 5. These additional supports will bear words such as "SOLD" or "RENTED." This will allow the printed words on the first and second flexible display supports 4 and 5, such as "FOR SALE" or "FOR RENT," to words such as "SOLD" or "RENTED," without having to replace them with other first and second flexible display supports 4 and 5. The additional first and second display supports will simply need to be attached to the first and second flexible display supports 4 and 5 already in place on the display unit 1.In this case, the removable attachment can be achieved using attachment elements and complementary attachment elements similar to those already described previously, between the first and second flexible display supports 4, 5 and respectively the first and second complementary display supports.

[0120] Other variants of the display device 1 can still be envisaged within the framework of the invention.

Claims

Demands 1. Display device (1), which includes: - a first load-bearing element (2) equipped with a first fastening system (9) capable of fixing said first load-bearing element (2) onto an external support, the first load-bearing element (2) comprising first and second longitudinal ends (2a, 2b) and defining a first longitudinal axis (XI), - a first flexible display support (4), a first assembly system (17) being configured to assemble the first load-bearing element (2) and a first lateral edge (4a) of the first flexible display support (4), - a second load-bearing element (3) equipped with a second fastening system (10) capable of fixing said second load-bearing element (3) onto the external support, the second load-bearing element (3) comprising first and second longitudinal ends (3a, 3b) and defining a second longitudinal axis (X2), - a second flexible display support (5), a second assembly system (18) being configured to assemble the second load-bearing element (3) and a first lateral edge (5a) of the second flexible display support (5), - a stiffening element (6) comprising first and second longitudinal ends (6a, 6b) and defining a third longitudinal axis (X3), a third assembly system (18) being configured to assemble said stiffening element (6) with a second lateral edge (4b) of the first flexible display support (4) and with a second lateral edge (5b) of the second flexible display support (5), - a first reinforcement structure (7) comprising two first reinforcement bars (35, 36, 67, 68, 85) which extend parallel to each other with a spacing between them, between the first longitudinal axis (XI) and the third longitudinal axis (X3), a fourth assembly system (39) being configured to assemble with a degree of mobility around the first longitudinal axis (XI) the first longitudinal ends (35a, 36a, 67a, 68a) of the first two reinforcement bars (35, 36, 67, 68, 85) with respectively the first and second longitudinal ends (2a, 2b) of the first load-bearing element (2) and a fifth assembly system (40) being configured to assemble with a degree of mobility around the third longitudinal axis (X3) the second longitudinal ends (35b, 36b, 67b, 68b, 85b) of the first two reinforcement bars (35, 36, 67, 68, 85) with respectively the first and second longitudinal ends (6a, 6b) of the stiffening element (6), - a second reinforcing structure (8) comprising two second reinforcing bars (37, 38, 69, 70, 87) which extend parallel to each other with a spacing between them, between the second longitudinal axis (X2) and the third longitudinal axis (X3), a sixth assembly system (41) being configured to assemble with a degree of mobility around the second longitudinal axis (X2) the first longitudinal ends (37a, 38a, 69a, 70a) of the two second reinforcing bars (37, 38, 69, 70, 87) with respectively the first and second longitudinal ends (3a, 3b) of the second load-bearing element (3) and a seventh assembly system (42) being configured to assemble with a degree of mobility around the third longitudinal axis (X3) the second longitudinal ends (37b, 38b, 69b, 70b, 87b) of the two second reinforcing bars (37, 38, 69, 70, 87) with respectively the first and second longitudinal ends (6a, 6b) of the stiffening element (6).

2. Display device (1) according to claim 1, wherein the first supporting element (2) comprises a first winding system (11) configured to either wind around the first longitudinal axis (XI) the first flexible display support (4), in a storage position, or unwind from the first longitudinal axis (XI) the first flexible display support (4), in a use position, the first assembly system (17) being configured to assemble the first winding system (11) and the first lateral edge (4a) of the first flexible display support (4).

3. Display device (1) according to any one of claims 1 or 2, wherein the second supporting element (3) comprises a second winding system (12) configured to either wind the second flexible display support (5) around the second longitudinal axis (X2), in a storage position, or unwind the second flexible display support (5) from the second longitudinal axis (X2), in a use position, the second assembly system (18) being configured to assemble the second winding system (12) and the first lateral edge (5a) of the second flexible display support (5).

4. Display device (1) according to any one of claims 1 to 3, wherein the first flexible display support (4) and the second flexible display support (5) are made of one and the same flexible display support (65) the two lateral edges (66a, 66b) of which are respectively assembled with the first supporting element (2) and with the second supporting element (3), and the middle (65a) of which is assembled with the stiffening element (6).

5. Display device (1) according to any one of claims 1 to 4, wherein the fourth assembly system (39) is configured to removably assemble the first reinforcement structure (7) with said first load-bearing element (2), the fifth assembly system (40) is configured to removably assemble the first structure of reinforcement (7) with the stiffening element (6), the sixth assembly system (41) is configured to removably assemble the second reinforcement structure (8) with the second load-bearing element (3) and the seventh assembly system (42) is configured to removably assemble the second reinforcement structure (8) with the stiffening element (6).

6. Display device (1 according to any one of claims 1 to 4, wherein the fourth assembly system (39) is configured to removably assemble the first reinforcement structure (7) with said first load-bearing element (2), the fifth assembly system (40) is configured to permanently assemble the first reinforcement structure (7) with the stiffening element (6), the sixth assembly system (41) is configured to removably assemble the second reinforcement structure (8) with the second load-bearing element (3) and the seventh assembly system (42) is configured to permanently assemble the second reinforcement structure (8) with the stiffening element (6),the fifth assembly system (40) comprising first means for folding the first reinforcement structure (7) against the stiffening element (6) and the seventh assembly system (42) comprising second means for folding the second reinforcement structure (8) against the stiffening element (6).

7. Display device (1) according to any one of claims 1 to 4, wherein the fourth assembly system (39) is configured to permanently assemble the first reinforcement structure (7) with said first load-bearing element (2), the fifth assembly system (40) is configured to removably assemble the first reinforcement structure (7) with the stiffening element (6), the sixth assembly system (41) is configured to permanently assemble the second reinforcement structure (8) with the second load-bearing element (3) and the seventh assembly system (42) is configured to removably assemble the second reinforcement structure (8) with the stiffening element (6),the fourth assembly system (39) comprising third means for folding the first reinforcement structure (7) against the first load-bearing element (2) and the sixth assembly system (41) comprising fourth means for folding the second reinforcement structure (8) against the second load-bearing element (3).

8. Display device (1) according to any one of claims 1 to 7, wherein the first assembly system (17) is configured to removably assemble the first carrier element (2) and the first lateral edge (4a) of the first flexible display support (4), the second assembly system (18) is configured to removably assemble the second carrier element (3) and the first lateral edge (5a) of the second flexible display support (5), and the third assembly system (19) is configured to assemble in a removable manner the stiffening element (6) with the second lateral edge (4b) of the first flexible display support (4) and with the second lateral edge (5b) of the second flexible display support (5).

9. Display device (1) according to any one of claims 1 to 7, wherein the first assembly system (17) is configured to removably assemble the first carrier element (2) and the first lateral edge (4a, 66a) of the first flexible display support (4), the second assembly system (18) is configured to removably assemble the second carrier element (3) and the first lateral edge (5a, 66b) of the second flexible display support (5), and the third assembly system (19) is configured to permanently assemble the stiffening element (6) with the second lateral edge (4b) of the first flexible display support (4) and with the second lateral edge (5b) of the second flexible display support (5).

10. Display device (1) according to any one of claims 1 to 9, which includes a keying system configured to ensure correct mounting, on the one hand, of the first reinforcement structure (7) on the first load-bearing element (2) and the stiffening element (6) and, on the other hand, of the second reinforcement structure (8) on the second load-bearing element (3) and the stiffening element (6).

11. Display device (1) according to any one of claims 1 to 10, which includes a first locking system (81) configured to immobilize the first reinforcement structure (7) with either the first load-bearing element (2) or the stiffening element (6), when said first reinforcement structure (7) is assembled with the first load-bearing element (2) and with the stiffening element (3), and a second locking system (82) configured to immobilize the second reinforcement structure (8) with either the second load-bearing element (3) or the stiffening element (6), when said second reinforcement structure (8) is assembled with the second load-bearing element (3) and with the stiffening element (6).

12. Display device according to claim 11, wherein the first locking system (81) is configured to immobilize the first reinforcement structure (7) with the first load-bearing element (2) when said first reinforcement structure (7) is assembled with the first load-bearing element (2) and with the stiffening element (6), and the second locking system (82) is configured to immobilize the second reinforcement structure (8) with the second load-bearing element (3) when said second reinforcement structure (8) is assembled with the second load-bearing element (3) and with the stiffening element (6).

13. Display device (1) according to claim 11, wherein the first locking system (81) is configured to immobilize the first reinforcement structure (7) with the stiffening element (6) when said first reinforcement structure (7) is assembled with the first load-bearing element (2) and with the stiffening element (6), and the second locking system (82) is configured to immobilize the second reinforcement structure (8) with the stiffening element (6) when said second reinforcement structure (8) is assembled with the second load-bearing element (3) and with the stiffening element (6).

14. Display device (1) according to any one of claims 11 to 13, wherein the first locking system (81) and the second locking system (82) each comprise at least one first locking assembly, said first locking assembly comprising: - a first part subjected to the first load-bearing element (2), respectively to the second load-bearing element (3), the first part comprising a first flat face disposed perpendicular to the first longitudinal axis (XI), respectively to the second longitudinal axis (X2), the first flat face comprising a first toothing (45) defining at least a first circular portion around the first longitudinal axis (XI), respectively around the second longitudinal axis (X2), - a second part subjected to the first reinforcing structure (7), respectively to the second reinforcing structure (8), the second part comprising a second flat face disposed perpendicular to the first longitudinal axis (XI), respectively to the second longitudinal axis (X2), and opposite the first flat face when the first load-bearing element (2) and the first reinforcing structure (7), respectively the second load-bearing element (3) and the second reinforcing structure (3), are assembled together, the second flat face comprising a second toothing (56, 76) defining at least a second circular portion around the first longitudinal axis (XI), respectively around the second longitudinal axis (X2), - a first sliding pivot joint arranged along the first longitudinal axis (XI), respectively along the second longitudinal axis (X2), between the first part and the second part when the first load-bearing element (2) and the first reinforcing structure (7), respectively the second load-bearing element (3) and the second reinforcing structure (8), are assembled together, - a first clamping system configured to exert pressure in the direction of the first longitudinal axis (XI), respectively in the direction of the second longitudinal axis (X2), on the first and second parts so as to bring them closer together during clamping, said bringing together allowing the first and second teeth (45, 56, 76) to mesh, said clamping system being configured to maintain said close position during clamping and to allow the separation between the first and second parts during loosening, so as to free the first tooth (45) from the second tooth (56, 76).

15. Display device (1) according to claim 14, in which the first clamping system includes a first return member configured to move the first and second parts apart during loosening, so as to systematically disengage the first tooth (45) from the second tooth (56, 76).

16. Display device (1) according to any one of claims 11 to 13, wherein the first locking system (81) and the second locking system (82) are constituted of a single locking system comprising at least one second locking assembly, said second locking assembly comprising: - a third piece subjected to the first reinforcement structure (7) and comprising a third flat face disposed perpendicular to the third longitudinal axis (X3) when the first reinforcement structure (7) is assembled with the stiffening element (6), the third flat face comprising a third toothing defining at least a third circular portion around the third longitudinal axis (X3), - a fourth piece subjected to the second reinforcement structure (8) and comprising a fourth flat face disposed perpendicular to the third longitudinal axis (X3) and opposite the third flat face when the second reinforcement structure (8) is assembled with the stiffening element (6), the fourth flat face comprising a fourth tooth (92) defining at least a fourth circular portion around the third longitudinal axis (X3), - a second sliding pivot joint arranged along the third longitudinal axis (X3) between the third piece and the fourth piece when the first reinforcement structure (7) and the second reinforcement structure (8) are assembled with the stiffening element (6), - a second clamping system configured to exert pressure in the direction of the third longitudinal axis (X3) on the third and fourth parts so as to bring them together during clamping, said bringing together allowing the third and fourth teeth (92) to mesh, said second clamping system being configured to maintain said close position during clamping and to allow the third and fourth parts to move apart during loosening, so as to disengage the third tooth from the fourth tooth (92).

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