CLOSING DEVICE FOR THE OPENING OF A PREMISES

The closing device addresses the issue of space and operational inefficiency in existing electrical installation access systems by using mortises and tenons for compact, secure access with reduced manufacturing costs and simplified assembly.

FR3159186B1Active Publication Date: 2026-02-06LM SOLEIL FAB SHELTER
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Patent Information

Application Number
FR2024001286
Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2024-02-09
Publication Date
2026-02-06
Estimated Expiration
2044-02-09

AI Technical Summary

Technical Problem

Existing closing devices for rooms housing electrical installations, such as hinged and sliding panels, require significant clearance space for access, making them cumbersome and time-consuming to operate, and are costly to manufacture.

Method used

A closing device with vertically aligned panels and lintels featuring mortises and tenons that allow for compact access and quick assembly/disassembly, utilizing mortises with insertion and blocking portions for secure locking, and a longitudinal retaining element for additional stability.

Benefits of technology

The device provides secure, space-efficient access to electrical installations with reduced manufacturing costs and simplified operation, allowing for easy assembly and disassembly without the need for extensive clearance space.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a closing device (10) for closing an opening (12) in a room containing an electrical installation. The closing device (10) comprises lintels (14a, 14b) that vertically define a receiving space for at least one panel (16) intended to close at least partially the opening (12). Each of the lintels (14a, 14b) comprises mortises. The panel (16) comprises tenons that extend vertically from a main body of the panel (16). The panel (16) is movable between a closed position of the opening (12) in which the upper and lower tenons extend at least partially through the mortises (22) of the upper lintel (14a) and the lower lintel (14b), respectively, and an open position in which the tenons extend beyond the mortises of the upper lintel. (14a) and the lower lintel (14b). Figure for the abbreviation: 1
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Description

Title of the invention: CLOSING DEVICE FOR OPENING A ROOM Technical field of the invention

[0001] The present invention relates to a closing device for opening, for example, a room such as an electrical cabinet. Technical background

[0002] Closing devices intended to close openings of premises in which electrical installations are installed usually include at least one hinged panel mounted on hinges which allow the pivoting of said panel in order to open or close access to the interior of the premises.

[0003] Given the electrical installations they house, these premises require secure access in order to protect both the installation and any user who may be nearby.

[0004] Thus, such premises or electrical cabinets are usually installed in confined spaces, for example in the basement of a building where the peripheral clearance area is reduced.

[0005] Thus, one of the problems with prior art devices for closing rooms housing electrical installations and comprising hinged panels concerns their size. Indeed, the hinged panels require a significant clearance space to pivot and provide access to the interior of the rooms.

[0006] We then know of closure devices which incorporate panels screwed around the perimeter of the opening, but such an installation proves tedious for an operator who has to unscrew all the screws in order to be able to access the inside of the room.

[0007] We also know of closure devices which incorporate sliding panels, but such an installation also requires a significant clearance to allow the translational movement of the panels.

[0008] Thus, the invention proposes to remedy the aforementioned problem by proposing a device for closing a room, housing an electrical installation, which includes panels that have a small footprint when they allow access to the inside of the room, while being simple and quick to assemble and disassemble.

[0009] The closure device according to the invention also has the advantage of being simple and quick to manufacture, which reduces design costs. Summary of the invention

[0010] The invention proposes a closing device intended to at least partially close an opening in a room containing an electrical installation, the closing device comprising at least one upper lintel and one lower lintel which vertically delimit a receiving space for at least one panel intended to at least partially close the opening, each of the lintels comprising mortises aligned longitudinally with respect to each other, the panel comprising upper tenons and lower tenons which extend vertically projecting respectively from an upper end and a lower end of a main body of the panel, the panel being movable between a closing position of the opening in which the upper tenons and the lower tenons extend at least partially through the mortises respectively of the upper lintel and the lower lintel,and an opening position in which the tenons extend beyond the mortises of the upper and lower lintels.

[0011] According to other features of the invention: - the tenons of the panel each include a first extension which extends vertically from the main body of the panel and each include a second extension which extends vertically from the first extension, the first extension of each of the tenons extending longitudinally over a first length and the second extension of each of the tenons extending longitudinally over a second length strictly less than the first length; - the first extension of each of the tenons includes stop surfaces which extend longitudinally on either side of the associated second extension of the tenon, the stop surfaces being configured to vertically lock the panel in position between the lintels when it is in its closed position; - the second extensions of each of the tenons of the panel are configured to extend vertically through the mortises of the upper and lower lintels when the panel is in its closed position; - the mortises include an insertion portion which includes a first transverse dimension and a blocking portion which includes a second transverse dimension strictly smaller than the first transverse dimension, the blocking portion being configured to receive and block transversely in position the second extension of the tenons when the panel is in its closed position; - the tenons take the form of flat plates made from the same material as the main body of the panel; - the panel has a transverse thickness which is less than the second transverse dimension of the mortise locking portion; - the closing device comprises two panels and a longitudinal retaining element which connect the two panels to each other when they are in their closed position and in such a way as to lock them in position in the longitudinal direction.

[0012] The invention also relates to a method for mounting a panel of a closing device according to any one of the preceding characteristics, in its closed position, the mounting method comprising:

[0013] - a first step during which the upper tenons are inserted vertically in the mortises of the upper lintel; and

[0014] - a second step during which the panel is moved vertically from in such a way that the lower tenons fit vertically into the mortises of the lower lintel; and

[0015] - a third step during which the panel is moved in translation longitudinal such that at least one of the buttress surfaces of the first extensions of the tenons extends each opposite one of the lintels in such a way as to vertically block the panel in position between the lintels.

[0016] According to another feature of the assembly method, in the third step, the second extensions of each of the tenons of the panel fit into the locking portions of the mortises. Brief description of the figures

[0017] Other features and advantages of the invention will become apparent upon reading the detailed description that follows, for an understanding of which reference should be made to the accompanying drawings in which:

[0018] [Fig-1] is a general perspective view of a closing device for an opening in a room in which an electrical installation is housed, the closing device comprising an upper lintel, a lower lintel and two panels;

[0019] [Fig.2] is a perspective view of one of the lintels of the closing device of the [Fig.1];

[0020] [Fig.3] is a close-up view of a mortise in the lintel of [Fig.2];

[0021] [Fig.4] is a perspective view of one of the panels of the closing device of the [Fig.l];

[0022] [Fig.5a] is a close-up view of an upper end of the panel of [Fig.4] comprising three tenons;

[0023] [Fig.5b] is a close-up view of a lower end of the panel of [Fig.4] comprising three tenons;

[0024] [Fig.6a] is a schematic view of a first step in a method of assembling the locking device;

[0025] [Fig.6b] is a close-up view of the first step in the assembly process of the locking device;

[0026] [Fig.7a] is a schematic view of a second step in the assembly process of the locking device;

[0027] [Fig.7b] is a close-up view of the second step of the assembly process of the locking device;

[0028] [Fig.8a] is a schematic view of a third step in the assembly process of the locking device;

[0029] [Fig.8b] is a close-up view of the third step of the assembly process of the locking device at the top end of the panel;

[0030] [Fig.8c] is a close-up view of the third step of the assembly process of the locking device at the lower end of the panel. Detailed description of the invention

[0031] For the description of the invention and the understanding of the claims, the vertical, longitudinal and transverse orientations according to the V, L, T frame indicated in the figures, whose longitudinal L and transverse T axes extend in a horizontal plane, will be adopted without limitation and without limiting reference to terrestrial gravity.

[0032] In the description that follows, identical, similar or analogous elements will be designated by the same reference numerals.

[0033] Fig. 1 illustrates a closing device 10 for an opening 12, for example of a room in which an electrical installation is installed, for example for the connection of a photovoltaic installation to an electrical supply network.

[0034] The opening 12 then corresponds to an access to the interior of the room which includes the electrical installation.

[0035] The opening 12 here presents a contour in the shape of a quadrilateral.

[0036] We then define an upper side 12a of the opening 12 and a lower side 12b of the opening 12 corresponding to the sides which vertically delimit said opening 12.

[0037] The closing device 10 illustrated in [Fig.1] comprises an upper lintel 14a and a lower lintel 14b which each extend mainly along a longitudinal direction L and opposite each other along a vertical direction V.

[0038] In particular, the upper lintel 14a extends against the upper side 12a of the opening 12 and the lower lintel 14b extends against the lower side 12b of the opening 12.

[0039] Thus, the upper lintel 14a and the lower lintel 14b vertically delimit a receiving space for two panels 16 configured to close at least partially the opening 12 when they are in a closed position.

[0040] Closing the opening at least partially means that the panels prevent the passage of an individual when they are in their closed position.

[0041] The two panels 16 each extend along a main vertical elongation direction V, between the upper lintel 14a and the lower lintel 14b.

[0042] Thus, the upper lintel 14a and the lower lintel 14b have the function of holding and locking the panels 16 in position through the opening 12 so that said panels 16 close access to the interior of the room when they are in the closed position.

[0043] The technical characteristics enabling cooperation between the upper lintel 14a and lower lintel 14b and the panels 16 will now be described by means of figures 1 to 5b.

[0044] Furthermore, it should be considered that initially, the structural characteristics of each of the elements of the closure device 10 are described separately, and then the cooperation between each of the elements of the closure device 10 will be the subject of a detailed description.

[0045] The upper lintel 14a and the lower lintel 14b are structurally identical to each other. Thus, in the remainder of the detailed description, the term lintel 14a, 14b will be used interchangeably to refer to structural features of the upper lintel 14a or the lower lintel 14b. In particular, the structural features of the upper lintel 14a and lower lintel 14b will be described by means of the lintel 14a, 14b illustrated in [Fig. 2].

[0046] The lintel 14a, 14b comprises a central flat portion 18 in the shape of a quadrilateral and from which four borders extend.

[0047] In particular, the edges of the lintel 14a, 14b extend perpendicularly from the central portion 18 of the latter.

[0048] We then define an upper longitudinal border 20a and a lower longitudinal border 20b of the lintel 14a, 14b, opposite each other along the vertical direction V.

[0049] A first vertical border 20c and a second vertical border 20d of the lintel 14a, 14b are also defined, opposite each other along the longitudinal direction L.

[0050] It should be considered that the upper and lower terms associated with the longitudinal borders 20a, 20b are defined according to a position of the upper lintels 14a and lower lintels 14b when they are installed in the opening 12 as described above and considering terrestrial gravity.

[0051] As seen in [Fig.2], the upper longitudinal border 20a of the lintel 14a, 14b includes mortises 22.

[0052] More precisely, the upper longitudinal edge 20a of the lintel 14a, 14b comprises a first group 22a of three mortises 22 and a second group 22b of three mortises 22 opposed to each other along the longitudinal direction L.

[0053] In the illustrated example of the invention, the mortises 22 of the same group 22a, 22b of mortises 22 extend at an equidistance longitudinal distance from each other.

[0054] Moreover, all the mortises of the lintel 14a, 14b extend along the longitudinal direction L.

[0055] One of the mortises 22 of the lintel 14a, 14b is illustrated in [Fig.3].

[0056] Furthermore, the mortises 22 according to the example of the invention are structurally identical to each other. Thus, it should be considered that the structural characteristics described for the mortise 22 of [Fig. 3] apply mutatis mutandis to all the mortises 22 of the lintel 14a, 14b.

[0057] As can be seen in [Fig.3], the mortise 22 extends longitudinally along a first dimension Dl.

[0058] According to a non-limiting example, the first dimension Dl is between 100mm and 150mm, preferably 140mm.

[0059] The mortise 22, visible in [Fig.3], includes a portion which includes a first transverse dimension DTI, called insertion portion 24, and a portion having a second transverse dimension DT2 strictly smaller than the first transverse dimension DTI, and called blocking portion 26.

[0060] According to a non-limiting example of the invention, the first transverse dimension DTI is between 3.5mm and 4.5mm, preferably 4mm and the second transverse dimension DT2 is between 1mm and 2mm, preferably 1.5mm.

[0061] Between the insertion portion 24 and the blocking portion 26 extends an intercalated portion 28 whose transverse dimension is decreasing from the first transverse dimension DTI to the second transverse dimension DT2.

[0062] More precisely, the intermediate portion 28 forms a guide ramp from the insertion portion 24 to the blocking portion 26.

[0063] Furthermore, the insertion portion 24 extends along a first longitudinal dimension DL1 and the blocking portion 26 extends along a second longitudinal dimension DL2 strictly smaller than the first longitudinal dimension DLL

[0064] According to a non-limiting example of the invention, the second longitudinal dimension DL2 is between 30mm and 50mm, preferably 40mm.

[0065] As can be seen in [Fig.2], the mortises 22 of the first group 22a extend longitudinally along the upper longitudinal edge 20a of the lintel 14a, 14b such that their blocking portions 26 are turned towards the second group 22b of mortises 22 and the mortises 22 of the second group 22b extend longitudinally along the upper longitudinal border 20a such that their blocking portions 26 are turned towards the first group 22a of mortises 22.

[0066] In other words, the first group 22a and the second group 22b of mortises 22 are arranged on the upper longitudinal edge 20a in such a way that they extend in mirror image with respect to each other considering a transverse plane T and vertical plane V of the lintel 14a, 14b.

[0067] It should also be considered that the lower longitudinal edge 20b of the lintel 14a, 14b comprises a first group of mortises and a second group of mortises whose structural characteristics are identical to those which extend over the upper longitudinal edge 20a.

[0068] In other words, the mortises 22 of the upper longitudinal edge 20a and of the lower longitudinal edge 20b extend in mirror image with respect to each other considering a longitudinal plane L and transverse plane T of the lintel 14a, 14b.

[0069] As seen in [Fig. 2], the first vertical edge 20c includes fixing holes 30 for the lintel 14a, 14b at one edge of the opening. The second vertical edge 20d also includes fixing bores, not shown here.

[0070] Also, the central portion 18 of the lintel 14a, 14b includes several fixing holes 30 allowing the lintel 14a, 14b to be fixed in the opening.

[0071] We thus take advantage of the lintels 14a, 14b as described above, that is to say identical to each other and with their upper longitudinal borders 14a and lower 14b identical, in that they can be positioned indifferently in the opening as upper lintel 14a or lower lintel 14b.

[0072] Thus, it is understood that the lintels 14a, 14b as described are advantageous in that they simplify their manufacture by limiting the needs to a single structure that can be positioned indifferently as an upper lintel 14a or as a lower lintel 14b.

[0073] Also, the structure of the lintels 14a, 14b allows them to be manufactured for example by laser cutting of a sheet metal plate and then by bending.

[0074] Thus, it is understood that when the lintel 14a, 14b is positioned as upper lintel 14a, its lower longitudinal edge 20b is positioned facing the opening in order to cooperate with the panels and when the lintel 14a, 14b is positioned as lower lintel 14b it presents its upper longitudinal edge 20a facing the opening in such a way as to cooperate with said panels.

[0075] Figure 4 illustrates one of the panels 16 of the closing device 10.

[0076] It should be considered that in the remainder of the description only one of the panels 16 of the closing device 10 will be described in detail, but that the structural characteristics of panel 16 described in [Fig.4] apply mutatis mutandis to the other panel 16 of the closing device 10 illustrated in [Fig.1].

[0077] In other words, it is understood that the panels 16 of the closure device 10 are structurally identical to each other.

[0078] The panel 16 comprises a main body 32 which has the shape of a quadrilateral and of which an upper end 34 and a lower end 36 are defined, opposite each other in the vertical direction V.

[0079] As illustrated in [Fig.4], tenons 38 extend vertically from each of the lower end 36 and the upper end 34 of the main body 32 of the panel 16.

[0080] Upper tenons 38a are defined which extend from the upper end 34 of the main body 32 of the panel 16 and lower tenons 38b are defined which extend from the lower end 36 of the main body 32 of the panel 16.

[0081] According to the illustrated example, panel 16 comprises three upper tenons 38a and three lower tenons 38b.

[0082] Here, each of the tenons 38 of the panels 16 is configured to cooperate with one of the mortises 22 of one of the lintels 14a, 14b as described previously.

[0083] More precisely, the upper tenons 38a of the panel 16 cooperate with the mortises 22 of the first group 22a or the second group 22b of mortises 22 formed on the lower longitudinal edge 20b of the upper lintel 14a and the lower tenons 38b cooperate with the mortises 22 of the same group 22a, 22b of mortises 22, formed on the upper longitudinal edge 20a of the lower lintel 14b.

[0084] It is then understood that the first groups 22a of mortises 22 of the upper lintel 14a and of the lower lintel 14b are configured to cooperate with the same panel 16 and that the second groups 22b of mortises 22 of the upper lintel 14a and of the lower lintel 14b are configured to cooperate with the other same panel 16 of the closing device 10.

[0085] Furthermore, the panels 16 have a transverse thickness which is less than the second transverse dimension DT2 of the blocking portion 26 of the mortises 22.

[0086] According to a non-limiting example, the transverse thickness of the panels 16 is between 0.5mm and 1.5mm, preferably 1mm.

[0087] The upper tenons 38a and the lower tenons 38b of the panel 16 take the form of flat plates which extend in the continuation of the main body 32 of the panel 16 in the vertical direction V.

[0088] In particular, the upper tenons 38a and the lower tenons 38b came from the same material as the main body 32 of the panel 16.

[0089] Each of the tenons 38 of the panel 16 includes a first extension 40 which extends vertically from the main body 32 of the panel 16 and which is extended vertically by a second extension 42 along the vertical direction V.

[0090] As seen in [Fig.5a], a first upper length LSI of the first extensions 40 of the upper tenons 38a and a second upper length LS2 of the second extensions 42 of the upper tenons 38a are defined, considering the longitudinal direction L.

[0091] The first upper length LSI is strictly greater than the second upper length LS2.

[0092] According to a non-limiting example, the first upper length LSI is between 70mm and 110mm and the second upper length LS2 is between 30mm and 50mm, preferably 40mm.

[0093] It is then understood that the second extension 42 of the upper tenons 38a forms a tongue which extends vertically from the first extension 40 of the upper tenons 38a.

[0094] Furthermore, the first extension 40 of the upper tenons 38a have a rectangular shape such that it includes two flat upper buttress surfaces 44a which extend longitudinally on either side of the second extension 42.

[0095] Thus, it is understood that the first extension 40 and the second extension 42 of the upper tenons 38a form a stepped structure of the upper tenons 38a, in a longitudinal plane L and vertical plane V of the panel 16.

[0096] According to the illustrated example, the upper tenon 38a which extends in the center of the other two upper tenons 38a, considering the longitudinal direction L, has its first extension 40 in the shape of a trapezoid.

[0097] Such a configuration of the upper tenon 38a including its first extension 40 in the shape of a trapezoid makes it possible to facilitate the cooperation of the upper tenons 38a with the mortises 22 of the upper lintel 14a by forming a guiding surface.

[0098] According to the illustrated example, the first upper length LSI of the first extension 40 of the upper tenons 38a is strictly less than the first dimension DI of the mortises 22, so that the upper tenons 38a of the panel 16 are able to pass vertically through the mortises 22 of one of the groups 22a, 22b of the lower longitudinal edge 20b of the upper lintel 14a, in a mounting position of the panel 16, as illustrated in [Fig.6b].

[0099] According to a preferred example of the invention, the first upper length LSI of the first extension 40 of the upper tenons 38a is substantially identical to the first longitudinal dimension DL1 of the insertion portion 24 of the mortises 22.

[0100] It is understood that, in a mounting position of the panel 16 visible in [Fig.6b], the upper tenons 38a are able to pass vertically through the insertion portion 24 of the mortises 22 of the upper lintel 14a.

[0101] Moreover, the second upper length LS2 of the second extensions 42 of the upper tenons 38a is substantially equal to the second longitudinal dimension DL2 of the locking portions 26 of the mortises 22, so that they are able to fit into said locking portions 26 in the closed position of the panels 16 as seen in [Fig.8b].

[0102] As seen in [Fig.5b], a first lower length LU of the first extensions 40 of the lower tenons 38b and a second lower length LI2 of the second extensions 42 of the lower tenons 38b are defined, considering the longitudinal direction L.

[0103] The first lower length LU is strictly greater than the second lower length LI2.

[0104] It is then understood that the second extension 42 of the lower tenons 38b forms a tongue which extends vertically from the first extension 40 of the lower tenons 38b.

[0105] Furthermore, the first extension 40 of the lower tenons 38b has a rectangular shape such that it includes two flat lower buttress surfaces 44b which extend longitudinally on either side of the second extension 42.

[0106] Thus, the first extension 40 and the second extension 42 of the lower tenons 38b form a stepped structure of the lower tenons 38b, in a longitudinal plane L and vertical plane V of the panel 16.

[0107] According to the illustrated example, the first lower length LU of the first extension 40 of the lower tenons 38b is strictly greater than the first dimension DI of the mortises 22.

[0108] Furthermore, the second lower length LI2 of the second extension 42 of the lower tenons 38b is strictly less than the first dimension DI of the mortises 22.

[0109] It is thus understood that only the second extensions 42 of the lower tenons 38b are able to pass through the mortises 22 of the lower lintel 14b during the assembly of the panel 16 as seen in [Fig.7b].

[0110] Thus and as can be seen in [Fig.7b], the lower buttress surfaces 44b are in contact with the upper longitudinal edge 20a of the lower lintel 14b when the second extensions 42 of the lower tenons 38b pass through the mortises 22 of said lower lintel 14b, in the panel mounting position.

[0111] Furthermore, the second lower length LI2 of the second extensions 40 of the lower tenons 38b is substantially equal to the second longitudinal dimension DL2 of the locking portions 26 of the mortises 22, such that they are suitable for housed in the said blocking portions 26 in the closed position of the panels 16 as seen in [Fig.8c].

[0112] As partly visible in figures 6b and 7b, the panel 16 includes vertical edges 46 which extend in a plane secant to a plane of the main body 32 of the panel 16.

[0113] The vertical edges 46 folded relative to the main body 32 of the panel 16 allow, among other things, for the reinforcement of the rigidity of the panel 16.

[0114] Also, the vertical edges 46 folded relative to the main body 32 of the panel 16 make it easy to stack the panels 16 on top of each other when stored.

[0115] The panel 16 as described can perhaps be manufactured by laser cutting from a piece of sheet metal and then by bending.

[0116] A method for mounting the closure device 10 will now be described with reference to Figures 1 to 8c.

[0117] It should be considered that prior to the assembly process of the closing device, the panels 16 are considered to be in an open position, that is to say, they are completely detached from the lintels 14a, 14b. In other words, in the open position of the panels 16, they are spatially distant from the lintels 14a, 14b and their tenons 38a, 38b are not engaged in the mortises 22.

[0118] For example, in the case of an opening of a room containing an electrical installation, the panels are placed against a wall next to the room, and thus outside the opening so as to clear the opening of the room for an operator.

[0119] As seen in figures 6a and 6b, in a first stage of the assembly of the closing device 10 the upper tenons 38a of the panel 16 are inserted vertically into the mortises 22 of the first group 22a formed on the lower longitudinal edge 20b of the upper lintel 14a.

[0120] More precisely, the first step consists of the vertical insertion of the first extension 40 and the second extension 42 of the upper tenons 38a through the insertion portion of the mortises 22 of the first group 22a formed on the lower longitudinal edge 20b of the upper lintel 14a as seen in [Fig.6b],

[0121] It is then understood that at the end of this insertion, the upper end 34 of the main body 32 of the panel 16 is in contact with the lower longitudinal edge 20b of the upper lintel 14a.

[0122] It is also understood that in order to proceed with this insertion of the upper tenons 38a, the panel 16 is slightly inclined with respect to a vertical plane V and longitudinal plane L, so as to fit into the receiving space delimited by the lintels 14a, 14b.

[0123] At the end of the first step, the panel 16 extends in a vertical plane V and longitudinal plane L, between the lintels 14a, 14b.

[0124] More specifically, at the end of this first step, the lower tenons 38b extend to a non-zero vertical distance from the lower lintel 14b, as seen in [Fig.6a].

[0125] Thus, it is understood that the panels 16 extend over a first vertical dimension DV1 strictly less than a second vertical dimension DV2 of the receiving space delimited by the lintels 14a, 14b, the first vertical dimension DV1 of the panel 16 being taken vertically between the upper end 34 of the main body 32 of the panels 16 and a free vertical end of the second extensions 42 of the lower tenons 38b.

[0126] It is understood from the illustrated example that the second vertical dimension DV2 extends vertically between the lower longitudinal edge of the upper lintel 14a and the upper longitudinal edge of the lower lintel 14b.

[0127] Once the first step has been carried out, in a second step visible in [Fig.7a], the panel 16 is moved vertically towards the lower lintel 14b so that the second extensions 42 of the lower tenons 38b, visible in [Fig.7b], pass vertically through the mortises 22 of the first group 22a formed on the upper longitudinal edge 20a of the lower lintel 14b.

[0128] During this second step, the lower buttress surfaces 44b of the first extensions 40 of the lower tenons 38b rest against the upper longitudinal edge 20a of the lower lintel 14b and the second extensions 42 of the lower tenons 38b pass through the insertion portion of the mortises 22, as seen in [Fig.7b],

[0129] Moreover, such an insertion of the second extensions 42 of the lower tenons 38b into the mortises 22, vertically displaces the panel 16 so that only the second extensions of the upper tenons 38a extend through the insertion portion of each of the mortises of the first group formed on the lower longitudinal edge of the upper lintel 14a.

[0130] In other words, at the end of the second stage, the first extensions of the upper tenons 38a extend outside the mortises of the first group formed on the lower longitudinal edge of the upper lintel 14a, as seen in [Fig.8a].

[0131] It is then understood that a third vertical dimension DV3 of the panel 16, visible in [Fig.7a], taken vertically between the upper buttress surfaces 44a and the lower buttress surfaces 44b is substantially identical to the second vertical dimension DV2 of the receiving space delimited by the lintels 14a, 14b.

[0132] It is also understood that the second extensions 42 of each of the tenons 38 extend over a fourth vertical dimension DV4, visible in figures 5a and 5b, sufficient so that the said second extensions 42 of the tenons 38 are vertically engaged through the mortises 22 of the lintels 14a, 14b at the end of the second stage.

[0133] In other words, the fourth vertical dimension DV4 of the second extensions 42 is configured to ensure that the tenons 38 are held in the mortises 22 at the end of the second step.

[0134] According to a non-limiting example, the fourth vertical dimension DV4 is between 10mm and 30mm.

[0135] Furthermore, the second extensions 42 of the upper tenons 38a may include a fourth vertical dimension DV4 different from the fourth vertical dimension DV4 of the second extensions 42 of the lower tenons 38b.

[0136] Following this second step, a third step of the assembly process visible in figures 8a to 8c is implemented, in which the panel 16 is moved in translation along the longitudinal direction L.

[0137] In other words, during the third step the panel 16 is moved longitudinally so that the second extensions 42 of the upper tenons 38a and lower tenons 38b fit respectively into the blocking portions 26 of the mortises 22 of the first group 22a formed on the lower longitudinal edge 20b of the upper lintel 14a and of the first group 22a formed on the upper longitudinal edge 20a of the lower lintel 14b, as seen respectively in [Fig.8b] and 8c.

[0138] At the end of this third step, one of the upper buttress surfaces 44a, visible in [Fig.5a], of each of the upper tenons 38a is opposite the lower longitudinal edge 20b of the upper lintel 14a and one of the lower buttress surfaces 44b, visible in [Fig.5b], of each of the lower tenons 38b is abutting against the upper longitudinal edge 20a of the lower lintel 14b, as illustrated respectively in figures 8b, 8c.

[0139] It is then understood that at the end of the third step, the panel 16 is locked vertically in position between the upper lintel 14a and the lower lintel 14b, the panel 16 being in its position of closing the opening 12.

[0140] Furthermore, the locking in position of the second extensions 42 of the upper tenons 38a and lower tenons 38b in the locking portions 26 of the mortises 22 allows the panel 16 to be locked in position according to the transverse direction.

[0141] Such a grip of the second extensions 42 of the upper tenons 38a and lower tenons 38b in the locking portions 26 of the mortises 22 makes it possible to limit the vibrations of the panel 16 when it is in its closing position of the opening 12.

[0142] The same assembly process steps as described above apply to the other panel of the closing device 10.

[0143] Furthermore, the structurally identical panels 16 take advantage of the fact that they can be installed interchangeably between the lintels. In other words, no particular position of the panels relative to each other is required for their installation between the lintels.

[0144] Thus, the assembly of the panels between the lintels is made easier for the operator and the manufacturing costs of said panels are also reduced.

[0145] Once the two panels 16 of the closing device 10 are installed in their closing position of the opening 12, a longitudinal retaining element 48, visible in [Fig.1], can be installed between the two panels 16 so as to secure them to each other and thus lock them in position along the longitudinal direction L.

[0146] The longitudinal retaining element 48 then prevents the panels 16 from moving longitudinally and thus blocks the second extensions of the tenons in the blocking portions of the mortises, as described above.

[0147] As seen in Figures 1 and 4, the main body 32 of the panel 16 includes gripping holes 50 to facilitate handling of the panels 16 by a user during the assembly process described above.

[0148] It is also understood that in order to dismantle the panels 16 of the lintels 14a, 14b the steps of the assembly process are carried out in reverse, that is to say from the third step to the first step.

[0149] Thus, the panels are detached from the lintels 14a, 14b by simple longitudinal and vertical movements and can subsequently be stored outside the opening to allow the user to cross the opening of the room.

[0150] It is then understood that the panels 16 of the closing device 10, once removed from the lintels 14a, 14b have a reduced footprint, leaving more space for the operator who, for example, needs to carry out maintenance on the electrical or photovoltaic installation.

Claims

1. Demands A closing device (10) intended to at least partially close an opening (12) of a room containing an electrical installation, the closing device (10) comprising at least one upper lintel (14a) and a lower lintel (14b) which vertically delimit a receiving space for at least one panel (16) intended to at least partially close the opening (12), each of the lintels (14a, 14b) comprising mortises (22) aligned longitudinally with respect to each other, the panel (16) comprising upper tenons (38a) and lower tenons (38b) which extend vertically projecting respectively from an upper end (34) and a lower end (36) of a main body (32) of the panel (16),the panel (16) being movable between a closed position of the opening (12) in which the upper tenons (38a) and the lower tenons (38b) extend at least partially through the mortises (22) of the upper lintel (14a) and the lower lintel (14b) respectively, and an open position in which the tenons (38a, 38b) extend outside the mortises (22) of the upper lintel (14a) and the lower lintel (14b), in which the tenons (38a, 38b) of the panel (16) each comprise a first extension (40) extending vertically from the main body (32) of the panel (16) and each comprise a second extension (42) extending vertically from the first extension (40), the first extension (40) of each of the tenons (38a, 38b) extending longitudinally on a first length (LSI, LU) and the second extension (42) of each of the tenons (38a, 38b) extending longitudinally over a second length (LS2,LI2) strictly less than the first length (LSI, LU), and wherein the first extension (40) of each of the tenons (38a, 38b) comprises buttress surfaces (44a, 44b) which extend longitudinally on either side of the associated second extension (42) of the tenon (38a, 38b), the buttress surfaces (44a, 44b) being configured to vertically lock the panel (16) in position between the lintels (14a, 14b) when it is in its closed position.

2. A closing device (10) according to the preceding claim, wherein the second extensions (42) of each of the tenons (38a, 38b) of the panel (16) are configured to extend vertically through the mortises (22) of the upper lintel (14a) and the lower lintel (14b) when the panel (16) is in its closed position.

3. A closing device (10) according to the preceding claim, wherein the mortises (22) comprise an insertion portion (24) which includes a first transverse dimension (DTI) and a locking portion (26) which includes a second transverse dimension (DT2) strictly smaller than the first transverse dimension (DTI), the locking portion (26) being configured to receive and transversely lock in position the second extension (42) of the tenons (38a, 38b) when the panel (16) is in its closed position.

4. A closing device (10) according to any one of the preceding claims, wherein the tenons (38a, 38b) take the form of flat plates made of material with the main body (32) of the panel (16).

5. A closing device (10) according to claims 3 and 4, wherein the panel (16) has a transverse thickness that is less than the second transverse dimension (DT2) of the locking portion (26) of the mortises (22).

6. A closing device (10) according to any one of the preceding claims, comprising two panels (16) and a longitudinal retaining element (48) which connect the two panels (16) to each other when they are in their closed position and so as to lock them in position along the longitudinal direction (L).

7. A method for mounting a panel (16) of a closing device (10) according to any one of the preceding claims, in its closed position, the mounting method comprising:

8. - a first stage during which the upper tenons (38a) are inserted vertically into the mortises (22) of the upper lintel (14a); and - a second stage in which the panel (16) is moved vertically so that the lower tenons (38b) fit at least partially vertically into the mortises (22) of the lower lintel (14b); and - a third step during which the panel (16) is moved in longitudinal translation so that at least one of the abutment surfaces (44a, 44b) of the first extensions (40) of the tenons (38a, 38b) extend each opposite one of the lintels (14a, 14b) so as to vertically lock the panel (16) in position between the lintels (14a, 14b). Assembly method according to the preceding claim and in combination with claim 3, wherein in the third step, the second extensions (42) of each of the tenons (38a, 38b) of the panel (16) fit into the locking portions (26) of the mortises (22).