PLASTERBOARD PANEL FOR ACCESS TO A COMPARTMENT

Description

Technical Field

[0001] The present invention relates to a plasterboard panel for access to a compartment.

[0002] In particular, the present invention is intended for a plasterboard panel for access to a compartment of the type comprising a first plasterboard sheet having a first flat surface and a second flat surface opposite the first. This first plasterboard sheet, having an opening extending between the first and the second flat surfaces, comprises a first outer zone, delimiting the opening, which extends at least partly in the same plane as the first flat surface. The plasterboard panel also comprises a second plasterboard sheet having a first flat surface and a second flat surface opposite the first, forming a door which can be connected to the opening in the first sheet. The second plasterboard sheet comprises a second outer zone delimiting the door. Moreover, the plasterboard panel is equipped with holding means for stably connecting the door to the opening, for a door closed configuration, and for at least partly removing the door from the opening, for a door open configuration.

Background Art

[0003] These types of plasterboard panels are normally used to allow access to a compartment by removing or moving the door formed by the second sheet.

[0004] From EP 1 279 779 A, US 2 791 345 A, DE 94 10 742 U1 and EP 0 668 415 A various types of plasterboard panels are known.

[0005] In this way, inside the compartment, which may for example be a cavity between two walls, there may be any device, such as an electrical panel, a local vent, and other devices, which requires periodic or impromptu adjustments, repairs or other operations.

[0006] Moreover, the access panels in the prior art briefly described open outwards, that is to say, on the side opposite the compartment, making use of the above-mentioned holding means.

[0007] If the door in the access panels were to open into the compartment, the space needed for door movement could not be used by the device contained in the compartment.

[0008] The prior art includes a plurality of different holding means, to allow door outward opening.

[0009] In particular, access panels are known in which the door and the first sheet are joined together by hinges located on external portions of the panel, that is to say, on portions of the panel which, when panel installation is complete, are not facing the compartment.

[0010] Because they are made of plasterboard, the prior art panels for access to a' compartment allow surface finishing machining which integrates very well with the walls forming the compartment and on which the access panel is installed.

[0011] It is quite desirable that, when the door is in the closed position, the door lies in the same plane as the sheet having the access opening, without unevenness in the plane formed by the wall on which the access panel is installed.

[0012] For this purpose, access panels are known which have stop elements for the door. The stop elements are located on an internal portion of the first sheet, that is to say on the surface of the first sheet directly facing the compartment, so that, when it is in the closed position, the door rests against the stop elements, remaining in a predetermined position.

[0013] The prior art includes a plurality of solutions for joining the edges of the door and the edges of the opening in the first sheet.

[0014] From a structural viewpoint, said plurality of solutions may be traced back to a single general solution.

[0015] In particular, said general solution involves the closing doors having edges perpendicular to the plane formed by the sheet which forms the door itself. These edges correspond to opening edges perpendicular to the first sheet, that is to say, to the sheet in which the opening is made.

[0016] Also known is the use of profiles and counter-profiles, both internal or external, applied to the edges of the opening and/or to the edges of the panel to avoid creating gaps between the door and the opening edge. The shape and position of such profiles and counter-profiles forms the above-mentioned plurality of solutions.

[0017] The Applicant has found that several aspects of prior art plasterboard panels for access to a compartment can be improved on. The prior art plasterboard panels for access to a compartment are subject to damage in the portion with the edges of the door and the edges of the sheet on which the access opening is made, compromising panel functionality.

[0018] This disadvantage is due to the fact that the right angle edges of the door and of the opening tend to collide every time the door is closed, particularly after prolonged use of the access panel.

[0019] Due to the low tolerances between the door and the opening, needed to prevent the formation of gaps, a small error in the movement for reinserting the door in the opening is enough to cause interference between the edges of the door and of the opening as the door is closed. This movement error becomes inevitable after prolonged use of the door. For example, when the door is hinged to the edges of the opening, since the door is made of plasterboard subjected to a high weight force resting on the hinges forming the axis of rotation, over time a slight misalignment of the axis of rotation between the door and the opening becomes inevitable.

[0020] Moreover, in the prior art access panels it is practically impossible to reduce the presence of gaps between the door and the opening to zero without using stop profiles and counter-profiles, since, given the finished thickness of the door and of the sheet on which the opening is made, any relative movement of the door and the opening requires a tolerance between the door dimensions and the opening dimensions in order to operate, for example to be able to guarantee door rotation relative to the opening.

[0021] This requirement means that the prior art plasterboard panels for access to a compartment are very complex to make.

Disclosure of the Invention

[0022] In this context, the main technical need of the present invention is to propose a plasterboard panel for access to a compartment which is free of the above-mentioned disadvantages.

[0023] In particular, the aim of the present invention is to provide a plasterboard panel for access to a compartment without gaps between the door and the opening.

[0024] Another aim of the present invention is to propose a plasterboard panel for access to a compartment which, even after prolonged used, maintains its functionality unchanged.

[0025] The technical need indicated and the aims specified are substantially achieved by a plasterboard panel for access to a compartment comprising the technical features described in one or more of the claims herein.

Brief Description of the Drawings

[0026] Further features and advantages of the present invention are more apparent in the detailed description below, with reference to a preferred, non-restricting, embodiment of a plasterboard panel for access to a compartment and, illustrated in the accompanying drawings, in which:

• Figure 1 is a perspective view of a plasterboard panel for access to a compartment according to the present invention in a first operating configuration;
• Figure 2 is a perspective view of the panel illustrated in Figure 1 in a second operating configuration;
• Figure 3 is a cross-section according to the plane III - III of the panel illustrated Figure 1;
• Figure 4 is a perspective view of an alternative embodiment of the panel illustrated in Figure 1;
• Figure 5 is a schematic perspective view of a plasterboard panel for access to a compartment, seen from the inside of the compartment and illustrating an alternative embodiment of the means for holding a door in the closed configuration;
• Figure 6 is a cross-section of the plasterboard panel illustrated in Figure 5 according to the plane IV - IV in Figure 5, but in which the door is shown in the open configuration.

Detailed Description of the Preferred Embodiments of the Invention

[0027] With reference to Figures 1 and 2, the numeral 1 denotes a plasterboard panel for access to a compartment.

[0028] With reference also to Figure 3, the plasterboard panel 1 comprises a first plasterboard, sheet 2 having a first flat surface 3 and a second flat surface 4 opposite the first 3. The first plasterboard sheet 2, having an opening 5 extending between the first and the second flat surfaces 3, 4, comprises an outer zone 6 which delimits the opening 5 and which extends at least partly in the same plane as the first flat surface 3. The panel 1 also comprises a second plasterboard sheet 7 having a first flat surface 8 and a second flat surface 9 opposite the first 8, forming a door 10 which can be connected to the opening 5 in the first sheet 2. The second plasterboard sheet 7 comprises a second outer zone 11 delimiting the door 10.

[0029] The panel 1 comprises holding means 12 for stably connecting the door 10 to the opening 5, for a door 10 closed configuration (for example, illustrated in Figure 1). The holding means 12 also have the function of allowing the door 10 to be at least partly removed from the opening 5, for a door 10 open configuration (for example, illustrated in Figure 2).

[0030] When the door 10 is in the closed configuration, as illustrated in Figure 1, the first flat surface 3 of the first sheet 2 and the first flat surface 8 of the second plasterboard sheet 7 lie in the same plane.

[0031] To pass from the door closed configuration to the door 10 open configuration, the door 10 must be turned or removed relative to the opening 5 from the opposite side to the compartment, that is to say, towards the outside of the compartment.

[0032] As illustrated in Figure 3, the outer zone 6 is flared transversally to the plane in which the panel 1 lies and narrows from the first flat surface 3 of the first sheet 2 to the second flat surface 4 of the first sheet 2. At the same time, the second outer zone 11 is flared transversally to the plane in which the panel 1 lies and narrows from the first flat surface 8 to the second flat surface 9 of the second sheet 7.

[0033] In particular, the first outer zone 6 comprises first outer edges 13 facing the opening 5, whose inclination relative to the plane in which the panel 1 lies forms the flaring of the first outer zone 6. Similarly, the second outer zone 11 comprises second outer edges 14 extending around the outside of the door 10 and whose inclination relative to the plane in which the panel 1 lies forms the flaring of the second outer zone 11.

[0034] Advantageously, a portion of the first flat surface 3 of the first sheet 2 extends without interruption forming at least the first outer edges 13. Similarly, a portion of the first flat surface 8 of the second sheet 7 extends without interruption forming at least the second outer edges 14.

[0035] In more detail, the first and second flat surfaces 3, 4 of the first sheet 2, like the first and second flat surfaces 8, 9 of the second sheet 7, are made of board layers 30, 80. Between two respective board layers there is a sheet of gypsum plaster, so that the assembly of board layers and gypsum plaster sheet forms the typical plasterboard structure.

[0036] Advantageously, the first outer edges 13 of the opening 5 and the second outer edges 14 of the door 10 are covered with board layers 30, 80, preventing the opening 5 or the door 10 from having gypsum plaster parts in direct contact. Moreover, advantageously, if the board layers 30, 80 extend without interruption respectively from the first flat surface 3 of the first sheet 2 to the first outer edges 13 and from the first flat surface 8 of the second sheet 7 to the second outer edges 14, this provides simply an extension without interruption of the first surface 3 of the first sheet 2 and of the first surface 8 of the second sheet 7 respectively to the first and second outer edges 13, 14.

[0037] As illustrated in Figure 3, the first outer zone 6 comprises an extension of the first plasterboard sheet 2 projecting into the opening 5, which can be suitably folded on the second flat surface 4 of the first sheet 2, in particular in contact with the later, as illustrated in Figure 3. The presence of the extension of the first sheet 2 forms a first frame in the first outer zone 6 (especially if the extension is folded in contact on the second flat surface 4 of the first sheet 2).

[0038] Similarly, the second outer zone 11 comprises an extension of the second plasterboard sheet 7 located on the opposite side to the first flat surface 8 of the second sheet 7. Said extension can be suitably folded on the second flat surface 9 of the second sheet 7, in particular in contact with the latter, as illustrated in Figure 3. The presence of the extension of the second sheet 7 forms a second frame in the second outer zone 11 (particularly if the extension is folded in contact on the second flat surface 9 of the second sheet 7).

[0039] The flaring of the first outer zone 6 is formed by a first portion inclined at a constant angle A between the first flat surface 3 of the first sheet 2 and the first outer edge 13.

[0040] The flaring of the second outer zone 11 is formed by a second portion inclined at a constant angle B between the first flat surface 8 of the second sheet 7 (and, therefore, of the door 10) and the second outer edge 14.

[0041] The flaring of the first and second outer zones 6, 11 is such that they are shaped to match one another, allowing perfect door 10 closing on the opening 5. In particular, the first and second angles A, B are supplementary to one another, that is to say, the sum of the absolute value of the first angle A and the absolute value of the second angle B is 180°.

[0042] In the preferred embodiment, the first angle A has an amplitude of between 30[deg.] and 80[deg.], preferably 60°.

[0043] Obviously, the dimensions of the door 10 are such that they allow perfect insertion and perfect closing of the opening 5.

[0044] To guarantee stable operating connection of the door 10 to the opening 5 and, at the same time, the possibility of the door 10 passing between the open configuration and the closed configuration, as indicated, the panel 1 comprises holding means 12.

[0045] In detail, the holding means 12 comprise anchoring means 15 active between the door 10 and the first outer zone 6. Said anchoring means 15, which in the preferred embodiment are magnetic, are designed to anchor the door 10 to the first sheet 2 when the door 10 is in the closed configuration. In the preferred embodiment, the anchoring means 15 comprise at least one magnet 16, preferably two, stably housed in the second outer zone 11 and facing the opening 5. With the door 10 closed, the magnet 16 acts on ferromagnetic strikers 17 fixed to the first outer zone 6 and at least partly projecting into the opening 5.

[0046] As is schematically illustrated in Figure 2, the holding means 12 also comprise at least one hinge 18, preferably of the recessed type, acting between the first edges 13 of the opening 5 and the second edges 14 of the door 10. The hinge 18 is designed to guide the door 10 between the open and closed configurations.

[0047] The panel 1 also comprises at least one lock 20, acting between the door 10 and the first sheet 2 when the door 10 is in the closed configuration. Advantageously, the lock 20 may be a button lock or a key lock. Advantageously, a key lock prevents unauthorised users from accessing the compartment.

[0048] It should be noticed that, depending on requirements, the holding means 12 may comprise both the hinge 18 and the anchoring means 15, or just the anchoring means 15, or just the hinge 18.

[0049] In one embodiment of the invention, in particular illustrated in Figures 5 and 6, one or more hinges 18 are fixed to the first sheet 2 (preferably on an upper side of the opening 5, as illustrated in Figures 5 and 6) and are connected to the door 10 using shaped brackets 180 which allow the door 10 to open without the door interfering with the first outer edge 13 of the first sheet 2. Telescopic cylinders 181 (for example, containing fluid, in particular gas) have a first end 182 hinged to the door 10 (advantageously on the extension of the second outer zone 11 if present, when the latter is folded on and makes contact with the second flat surface 9 of the second sheet 7) and a second end 183 hinged to the first sheet 2 (at the first outer edge 13 and advantageously on the extension of the first outer edge 6 if present, when the latter is folded on and makes contact with the second flat surface 4 of the first sheet 2) . The axes of rotation of the first and second ends 182, 183 of the telescopic cylinders 181 are parallel with the axis of rotation formed by the hinges 18. This structure can also allow the door 10 to open by tilting upwards and this open configuration to be stably maintained without effort by the user thanks to the resistance offered by the telescopic cylinders 181 when they are of the fluid type (in particular, containing gas) . The arrows in Figure 6 illustrate the movements of the various parts in the door 10 as it passes between the closed and the open configurations.

[0050] In an embodiment illustrated in Figure 4, the panel 1 has the form of a ventilation grille.

[0051] In particular, in this embodiment, the door 10 comprises a plurality of slits 19 extending between the board layers covering the door 10, that is to say between the first and the second flat surfaces 8, 9 of the second sheet 7.

[0052] The slits 19, preferably equidistant, allow the passage of an air flow between the compartment closed by the door 10 and the environment outside the compartment. The slits may be closed by a light layer of material permeable to air or by a dust filter.

[0053] The present invention achieves the preset aims.

[0054] The first and second tapered frames create a connection between the door and the opening in the first plasterboard sheet which is free of gaps.

[0055] Moreover, operation of the door remains unchanged even after prolonged use, since, even after a minimum movement of the hinge axis of rotation, the connection between the door and the opening is accomplished without interference between the two parts.

[0056] The tapering of the frames allows progressive engagement between the door and the opening.

Claims

1. A plasterboard panel (1) for access to a compartment comprising:

- a first plasterboard sheet (2) having a first flat surface (3) and a second flat surface (4) opposite the first (3); the first plasterboard sheet (2) having an opening (5) extending between the first flat surface (3) and the second flat surface (4); the first plasterboard sheet (2) also comprising a first outer zone (6) delimiting the opening (5), extending at least partly in the same plane as the first flat surface (3);

- a second plasterboard sheet (7) having a first flat surface (8) and a second flat surface (9) opposite the first (8), forming a door (10) which can be connected to the opening (5) in the first sheet (2); the second plasterboard sheet (7) comprising a second outer zone (11) delimiting the door (10);

- holding means (12) for stably connecting the door (10) to the opening (5), for a door (10) closed configuration, and for at least partly removing the door (10) from the opening (5), for a door (10) open configuration;

- the door (10) closed configuration forming a single plane between the first flat surface (3) of the first plasterboard sheet (2) and the first flat surface (8) of the second plasterboard sheet (7); the panel being characterised in that:

- the first outer zone (6) is tapered transversally to the plane in which the panel (1) lies and narrows from the first flat surface (3) to the second flat surface (4) of the first sheet (2) ;

- the second outer zone (11) is tapered transversally to the plane in which the panel (1) lies and narrows from the first flat surface (8) to the second flat surface (9) of the second sheet (7).

2. The panel (1) according to claim 1, wherein the first outer zone (6) comprises first outer edges (13) facing the opening (5) of the first sheet (2) and the second outer zone (11) comprises second outer edges (14) around the outside of the door (10); the tapering of the first outer zone (6) being formed by a portion inclined at a first constant angle (A) formed between the first flat surface (3) of the first sheet (2) and the first edge (13) ; the tapering of the second outer zone (11) being formed by a portion inclined at a second constant angle (B) formed between the first flat surface (8) of the door (10) and the second edge (14).

3. The panel (1) according to claim 2, wherein the first angle (A) and the second angle (B) are supplementary angles.

4. The panel (1) according to claim 2 or 3, wherein a portion of the first flat surface (3) of the first sheet (2) extends without interruption forming at least the first outer edges (13) and wherein a portion of the first flat surface (8) of the second sheet (7) extends without interruption forming at least the second outer edges (14).

5. The panel (1) according to any of the foregoing claims, comprising at least one lock (20) acting between the door (10) and the first sheet (2) in the door (10) closed configuration.

6. The panel (1) according to any of the foregoing claims, wherein the holding means (12) comprise anchoring means (15), preferably magnetic, acting between the door (10) and the first outer zone (6).

7. The panel (1) according to any of the claims from 2 to 6, wherein the holding means (12) comprise at least one hinge (18), preferably recessed, acting between the first edges (13) of the first outer zone (6) and the second edges (14) of the second outer zone (11).

8. The panel (1) according to any of the claims from 2 to 7, wherein the holding means (12) comprise:

- at least one hinge (18) fixed, to the first sheet (2) at the opening (5) and connected to the door (10) by at least one shaped bracket (180) which allows the door (10) to open without interfering with the first outer edges (13) of the first outer zone (6);

- at least one telescopic cylinder (181) having a first end (182) hinged to the door (10) and a second end (183) hinged to the first sheet (2);

- the axes of rotation of the first and second ends (182, 183) of the telescopic cylinder (181) being parallel with the axis of rotation formed by the hinge (18).

9. The panel (1) according to any of the foregoing claims, wherein the door (10) comprises a plurality of through-slits (19) forming a ventilation grille.

10. The panel (1) according to any of the foregoing claims, wherein the first outer zone (6) is formed by an extension of the first plasterboard sheet (2) projecting in the opening (5) to form a first frame.

11. The panel (1) according to claim 10, wherein the extension of the first sheet (2) is folded on the second flat surface (4) of the first sheet (2).

12. The panel (1) according to claim 11, wherein the extension of the first sheet (2) is in contact with the second flat surface (4) of the first sheet (2).

13. The panel according to any of the foregoing claims, wherein the second outer zone (11) is formed by an extension of the second plasterboard sheet (7) to form a second frame.

14. The panel (1) according to claim 13, wherein the extension of the second sheet (7) is folded on the second flat surface (9) of the second sheet (7).

15. The panel (1) according to claim 14, wherein the extension of the second sheet (7) is in contact with the second flat surface (9) of the second sheet (7).

Ansprüche

1. Eine Gipskartonplatte (1) für den Zugang zu einer Kammer, umfassend:

einen ersten Gipskartonbogen (2) mit einer ersten ebenen Oberfläche (3) und einer zweiten ebenen Oberfläche (4) entgegengesetzt der ersten (3), während der erste Gipskartonbogen (2) eine Öffnung (5) aufweist, die sich zwischen der ersten ebenen Oberfläche (3) und der zweiten ebenen Oberfläche (4) erstreckt, wobei der erste Gipskartonbogen (2) ebenso eine erste äußere Zone (6) umfasst, die die Öffnung (5) beschränkt und sich mindestens teilweise in derselben Ebene wie die erste ebene Oberfläche (3) erstreckt,

einen zweiten Gipskartonbogen (7) mit einer ersten ebenen Oberfläche (8) und einer zweiten ebenen Oberfläche (9) entgegengesetzt der ersten (8), der eine Tür (10) bildet, die mit der Öffnung (5) in dem ersten Bogen (2) verbunden werden kann, wobei der zweite Gipskartonbogen (7) eine zweite äußere Zone (11) aufweist, die die Tür (10) beschränkt,

Haltemittel (12) zum stabilen Verbinden der Tür (10) mit der Öffnung (5) für eine geschlossene Konfiguration der Tür (10) sowie zum mindestens teilweisen Entfernen der Tür (10) aus der Öffnung (5) für eine geöffnete Konfiguration der Tür (10), während

die geschlossene Konfiguration der Tür (10) eine einzige Ebene zwischen der ersten ebenen Oberfläche (3) des ersten Gipskartonbogens (2) und der ersten ebenen Oberfläche (8) des zweiten Gipskartonbogens (7) bildet, die Platte ist dadurch gekennzeichnet, dass:

die erste äußere Zone (6) sich quer zu der Ebene, in der die Platte (1) liegt, verjüngt und verengt sich von der ersten ebenen Oberfläche (3) zu der zweiten ebenen Oberfläche (4) des ersten Bogens (2), während

die zweite äußere Zone (11) sich quer zu der Ebene, in der die Platte (1) liegt, verjüngt und verengt sich von der ersten ebenen Oberfläche (8) zu der zweiten ebenen Oberfläche (9) des zweiten Bogens (7).

2. Die Platte (1) gemäß Anspruch 1, während die erste äußere Zone (6) erste äußere Ränder (13) aufweist, die der Öffnung (5) des ersten Bogens (2) zugewandt sind, und die zweite äußere Zone (11) umfasst zweite äußere Ränder (14) um die Außenseite der Tür (10), während die Verjüngung der ersten äußeren Zone (6) durch einen Bereich gebildet wird, der abgeschrägt ist in einem ersten konstanten Winkel (A), der zwischen der ersten ebenen Oberfläche (3) des ersten Bogens (2) und dem ersten Rand (13) gebildet ist, wobei die Verjüngung der zweiten äußeren Zone (11) durch einen Bereich gebildet wird, der abgeschrägt ist in einem zweiten konstanten Winkel (B), der zwischen der ersten ebenen Oberfläche (8) der Tür (10) und dem zweiten Rand (14) gebildet ist.

3. Die Platte (1) gemäß Anspruch 2, wobei der erste Winkel (A) und der zweite Winkel (B) Hilfswinkel sind.

4. Die Platte (1) gemäß Anspruch 2 oder 3, während ein Bereich der ersten ebenen Oberfläche (3) des ersten Bogens (2) sich ohne Unterbrechung erstreckt, der mindestens den ersten äußeren Rand (13) bildet, und ein Bereich der ersten ebenen Oberfläche (8) des zweiten Bogens (7) erstreckt sich ohne Unterbrechung, der mindestens den zweiten äußeren Rand (14) bildet.

5. Die Platte (1) gemäß einem der vorhergehenden Ansprüche, die mindestens eine Sperrvorrichtung (20) aufweist, die zwischen der Tür (10) und dem ersten Bogen (2) in der geschlossenen Konfiguration der Tür (10) wirkt.

6. Die Platte (1) gemäß einem der vorhergehenden Ansprüche, während die Haltemittel (12) Ankermittel (15), vorzugsweise magnetische, umfassen, die zwischen der Tür (10) und der ersten äußeren Zone (6) wirken.

7. Die Platte (1) gemäß einem der Ansprüche 2 bis 6, während die Haltemittel (12) mindestens ein Scharnier (18), vorzugsweise zurückgesetzt, umfassen, das zwischen dem ersten Rand (13) der ersten äußeren Zone (6) und dem zweiten Rand (14) der zweiten äußeren Zone (11) wirkt.

8. Die Platte (1) gemäß einem der Ansprüche 2 bis 7, während die Haltemittel (12) umfassen:

mindestens ein Scharnier (18), das an dem ersten Bogen (2) an der Öffnung (5) befestigt ist und mit der Tür (10) durch mindestens eine geformte Klammer (180) verbunden ist, die es der Tür (10) gestattet, sich ohne Störung mit dem ersten äußeren Rand (13) der ersten äußeren Zone (6) zu öffnen,

mindestens einen Teleskopzylinder (181) mit einem ersten Ende (182), der mittels Scharnier mit der Tür (10) verbunden ist, sowie einem zweiten Ende (183), das mittels Scharnier mit dem ersten Bogen (2) verbunden ist, während

die Drehachse der ersten und zweiten Enden (182, 183) des Teleskopzylinders (181) parallel mit der Drehachse ist, die durch das Scharnier (18) gebildet wird.

9. Die Platte (1) gemäß einem der vorhergehenden Ansprüche, während die Tür (10) eine Mehrzahl von Durchgangsschlitzen (19) umfasst, die einen Ventilationsgrill bilden.

10. Die Platte (1) gemäß einem der vorhergehenden Ansprüche, während die erste äußere Zone (6) mittels einer Erweiterung des ersten Gipskartonbogens (2) gebildet ist, die in die Öffnung (5) vorsteht, um einen ersten Rahmen zu bilden.

11. Die Platte (1) gemäß Anspruch 10, während die Erweiterung des ersten Bogens (2) auf der zweiten ebenen Oberfläche (4) des ersten Bogens (2) gefaltet ist

12. Die Platte (1) gemäß Anspruch 11, während die Erweiterung des ersten Bogens (2) in Kontakt mit der zweiten ebenen Oberfläche (4) des ersten Bogens (2) steht.

13. Die Platte gemäß einem der vorhergehenden Ansprüche, während die zweite äußere Zone (11) durch eine Erweiterung des zweiten Gipskartonbogens (7) gebildet ist, um einen zweiten Rahmen zu bilden.

14. Die Platte (1) gemäß Anspruch 13, während die Erweiterung des zweiten Bogens (7) auf der zweiten ebenen Oberfläche (9) des zweiten Bogens (7) gefaltet ist.

15. Die Platte (1) gemäß Anspruch 14, während die Erweiterung des zweiten Bogens (7) mit der zweiten ebenen Oberfläche (9) des zweiten Bogens (7) in Kontakt steht.

Revendications

1. Panneau de plaque de plâtre (1) pour accéder à un compartiment comprenant :

une première feuille de plaque de plâtre (2) ayant une première surface plate (3) et une seconde surface plate (4) opposée à la première (3) ; la première feuille de plaque de plâtre (2) ayant une ouverture (5) s'étendant entre la première surface plate (3) et la seconde surface plate (4) ; la première feuille de plaque de plâtre (2) comprenant également une première zone externe (6) délimitant l'ouverture (5), s'étendant au moins partiellement dans le même plan que la première surface plate (3) ;

une seconde feuille de plaque de plâtre (7) ayant une première surface plate (8) et une seconde surface plate (9) opposée à la première (8), formant une porte (10) qui peut être raccordée à l'ouverture (5) dans la première feuille (2) ; la seconde feuille de plaque de plâtre (7) comprenant une seconde zone externe (11) délimitant la porte (10) ;

des moyens de support (12) pour raccorder de manière stable la porte (10) à l'ouverture (5), pour une configuration fermée de porte (10), et pour retirer au moins partiellement la porte (10) de l'ouverture (5), pour une configuration ouverte de porte (10) ;

la configuration fermée de porte (10) formant un seul plan entre la première surface plate (3) de la première feuille de plaque de plâtre (2) et la première surface plate (8) de la seconde feuille de plaque de plâtre (7) ;

le panneau étant caractérisé en ce que :

une première zone externe (6) est amincie transversalement par rapport au plan dans lequel le panneau (1) se trouve et se rétrécit de la première surface plate (3) à la seconde surface plate (4) de la première feuille (2) ;

la seconde zone externe (11) est amincie transversalement par rapport au plan dans lequel le panneau (1) se trouve et se rétrécit de la première surface plate (8) à la seconde surface plate (9) de la seconde feuille (7).

2. Panneau (1) selon la revendication 1, dans lequel la première zone externe (6) comprend des premiers bords externes (13) faisant face à l'ouverture (5) de la première feuille (2) et la seconde zone externe (11) comprend des seconds bords externes (14) autour de l'extérieur de la porte (10) ; l'amincissement de la première zone externe (6) étant formé par une partie inclinée selon un premier angle constant (A) formé entre la première surface plate (3) de la première feuille (2) et le premier bord (13) ; le rétrécissement progressif de la seconde zone externe (11) étant formé par une partie inclinée selon un second angle constant (B) formé entre la première surface plate (8) de la porte (10) et le second bord (14).

3. Panneau (1) selon la revendication 2, dans lequel le premier angle (A) et le second angle (B) sont des angles supplémentaires.

4. Panneau (1) selon la revendication 2 ou 3, dans lequel une partie de la première surface plate (3) de la première feuille (2) s'étend sans interruption, formant au moins les premiers bords externes (13) et dans lequel une partie de la première surface plate (8) de la seconde feuille (7) s'étend sans interruption, formant au moins les seconds bords externes (14).

5. Panneau (1) selon l'une quelconque des revendications précédentes, comprenant au moins un verrouillage (20) agissant entre la porte (10) et la première feuille (2) dans la configuration fermée de porte (10).

6. Panneau (1) selon l'une quelconque des revendications précédentes, dans lequel les moyens de support (12) comprennent des moyens d'ancrage (15), de préférence magnétiques, agissant entre la porte (10) et la première zone externe (6).

7. Panneau (1) selon l'une quelconque des revendications 2 à 6, dans lequel les moyens de support (12) comprennent au moins une charnière (18), de préférence évidée, agissant entre les premiers bords (13) de la première zone externe (6) et les seconds bords (14) de la seconde zone externe (11).

8. Panneau (1) selon l'une quelconque des revendications 2 à 7, dans lequel les moyens de support (12) comprennent :

au moins une charnière (18) fixée sur la première feuille (2) au niveau de l'ouverture (5) et raccordée à la porte (10) par au moins une applique moulée (180) qui permet à la porte (10) de s'ouvrir sans interférer avec les premiers bords externes (13) de la première zone externe (6) ;

au moins un cylindre télescopique (181) ayant une première extrémité (182) articulée par rapport à la porte (10) et une seconde extrémité (183) articulée par rapport à la première feuille (2) ;

les axes de rotation des première et seconde extrémités (182, 183) du cylindre télescopique (181) étant parallèles à l'axe de rotation formé par la charnière (18).

9. Panneau (1) selon l'une quelconque des revendications précédentes, dans lequel la porte (10) comprend une pluralité de fentes de passage (19) formant une grille de ventilation.

10. Panneau (1) selon l'une quelconque des revendications précédentes, dans lequel la première zone externe (6) est formée par une extension de la première feuille de plaque de plâtre (2) faisant saillie dans l'ouverture (5) afin de former un premier châssis.

11. Panneau (1) selon la revendication 10, dans lequel l'extension de la première feuille (2) est pliée sur la seconde surface plate (4) de la première feuille (2).

12. Panneau (1) selon la revendication 11, dans lequel l'extension de la première feuille (2) est en contact avec la seconde surface plate (4) de la première feuille (2).

13. Panneau selon l'une quelconque des revendications précédentes, dans lequel la seconde zone externe (11) est formée par une extension de la seconde feuille de plaque de plâtre (7) afin de former un second châssis.

14. Panneau (1) selon la revendication 13, dans lequel l'extension de la seconde feuille (7) est pliée sur la seconde surface plate (9) de la seconde feuille (7).

15. Panneau (1) selon la revendication 14, dans lequel l'extension de la seconde feuille (7) est en contact avec la seconde surface plate (9) de la seconde feuille (7).

Drawing