Reinforcement board for a shower tray and shower tray including such a reinforcement board

Abstract

Reinforcement board for a shower tray and shower tray comprising such a reinforcement board. The invention relates to a reinforcement board for a shower tray comprising a reinforcement element (11). According to the invention, the reinforcement board is made of a thermoplastic material and the reinforcement element (11) comprises a mesh including: - a set of central ribs (37), having a predetermined basic pitch (P1), - a set of diagonal ribs (43) having a pitch (P2) greater than said basic pitch (P1), - a set of peripheral ribs (45), having a pitch (P3) less than said basic pitch (P1), - a set of drain ribs (51), having a pitch (P4) less than said basic pitch (P1). The invention also relates to a shower tray comprising such a reinforcement board. Figure 4

Description

Title of the invention: Reinforcing board for a shower tray and shower tray comprising such a reinforcing board Technical field

[0001] The present invention is in the sanitary field, and relates to a reinforcing board for a shower tray and a shower tray comprising such a reinforcing board. Prior art

[0002] A shower tray consists of a tray placed on the floor, allowing water to be received and evacuated.

[0003] Depending on the configuration of the bathroom in which it is installed, the shower tray can be placed, recessed or raised and have various shapes and dimensions to allow for its proper integration.

[0004] The design of a bathroom for people with reduced mobility is governed by several accessibility standards, in particular standards NF EN 251 and NF EN 14527+AL

[0005] Among the constraints imposed by these standards, the shower overhang, corresponding to the difference in level between the bathroom floor and that of the shower tray, must not exceed 2cm, or 4cm when the shower is accessible with an access ramp with a slope less than or equal to 33%. The shower tray can therefore be built-in or placed, but not raised.

[0006] Also, to meet the entire market, and renovation in particular, the shower tray must be compatible with a raised installation with feet.

[0007] The shower tray comprises, in a known manner, a so-called "sanitary" plate, a plate which constitutes the part visible from the outside of the tray on which a user walks when showering.

[0008] The shower tray further comprises a reinforcing board, assembled to the sanitary plate so as to support the sanitary plate and designed to provide rigidity to the shower tray.

[0009] For this purpose, in order to provide good mechanical resistance to the shower tray during use by a user, it is known to produce a reinforcement board in a thermosetting material, for example polyester.

[0010] However, thermosetting materials are not recyclable materials, which goes against current ecological and economic issues.

[0011] In order to make the receiver reinforcement board recyclable, it is envisaged to manufacture the reinforcement board in a thermoplastic material, a material entirely recyclable.

[0012] However, the mechanical resistance characteristics of a thermoplastic material are significantly lower than those obtained by a thermosetting material.

[0013] Thus, by making the reinforcement board in a thermoplastic material in a thickness compatible with the projection height requirement provided for by the aforementioned accessibility standards, the reinforcement board would no longer give the sanitary plate sufficient rigidity to support the sanitary plate obtained with a reinforcement board made of a thermosetting material. Statement of the invention

[0014] The present invention aims to overcome the aforementioned drawbacks, and to this end relates to a reinforcing board for a shower tray, intended to be assembled with a sanitary plate intended to support a user of said shower tray, said reinforcing board comprising a reinforcing element designed to confer rigidity to said shower tray, said reinforcing board being remarkable in that it is made of a thermoplastic material and in that said reinforcing element comprises a mesh comprising: - a set of central ribs, comprising longitudinal ribs and transverse ribs, formed in a central zone extending over an area of ​​between approximately 60% and approximately 75% of the total area of ​​said reinforcing element, said central ribs having a predetermined basic pitch, - a set of diagonal ribs, made in said central zone, having a pitch greater than said base pitch of said central ribs, - a set of peripheral ribs, comprising peripheral longitudinal ribs and peripheral transverse ribs, formed in a peripheral zone extending at least over a part of the periphery of said reinforcing element and extending over a surface area of ​​between approximately 15% and approximately 25% of the total surface area of ​​said reinforcing element, said peripheral ribs having a pitch less than said basic pitch of said central ribs, - a set of drain ribs, comprising longitudinal ribs and transverse ribs, formed in a drain zone extending around a drain orifice intended to receive a drain plug and extending over a surface area of ​​between approximately 10% and approximately 15% of said total surface area of ​​said reinforcing element, said drain ribs having a pitch less than said base pitch of said central ribs.

[0015] Thus, providing such a mesh practiced on the reinforcing element makes it possible to give the reinforcing board the stiffness necessary to absorb the forces undergone by the sanitary plate when the shower tray is used by a user, while making the reinforcement board in a thermoplastic material and while providing a thickness of reinforcement board compatible with the requirement in terms of projection height provided for by the standards relating to accessibility for people with reduced mobility.

[0016] The fact of making the reinforcement board in a thermoplastic material makes it fully recyclable, unlike the reinforcement boards of the prior art made in a thermosetting material.

[0017] Thanks to the present invention, a reinforcement board made of thermoplastic material is obtained having a reduced height compared to the height that would be obtained with a reinforcement board made of thermoplastic material without such a mesh, which makes it compatible for use according to the standards relating to accessibility for people with reduced mobility.

[0018] According to optional characteristics of the reinforcement board according to the invention: - the pitch of said peripheral ribs and / or the pitch of said drain ribs is equal to approximately half of said base pitch of said central ribs; - said diagonal ribs comprise a first subset of ribs and a second subset of ribs, said second subset of ribs extending perpendicular to said first subset of ribs; - said central ribs represent between approximately 20% and approximately 30% of the total volume of said reinforcement board, and / or said peripheral ribs represent between approximately 5% and approximately 10% of the total volume of said reinforcement board, and / or said draining ribs represent between approximately 2% and approximately 6% of the total volume of said reinforcement board, and / or said diagonal ribs represent between approximately 6% and approximately 10% of the total volume of said reinforcement board; - the reinforcement board comprises a canvas intended to come into contact with said sanitary plate of said shower tray, said canvas representing between approximately 50% and approximately 60% of the total volume of said reinforcement board; - the basic pitch of said central ribs is between approximately 30mm and approximately 70mm; - the pitch of said peripheral ribs and / or the pitch of said emptying ribs is between approximately 15mm and approximately 35mm; - the pitch of said diagonal ribs is between approximately 75mm and approximately 135mm.

[0019] The invention also relates to a shower tray, comprising a sanitary plate and a reinforcing board assembled to said sanitary plate, remarkable in that said reinforcing board is according to the invention. Brief description of the drawings

[0020] Other characteristics, aims and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings in which:

[0021] [Fig-1] shows a shower tray according to the invention, seen in perspective.

[0022] [Fig.2] is an exploded view of the shower tray according to the invention.

[0023] [Fig.3] is a bottom view of the reinforcing element according to the invention.

[0024] [Fig.4] is a bottom view of the reinforcing element according to the invention, the element of reinforcement being rotated 90° relative to the representation in [Fig.3]. Description of the embodiments

[0025] In the remainder of the description, elements having an identical structure or similar functions are designated by the same reference.

[0026] By convention, longitudinal, vertical and transverse orientations will be adopted, without limitation, indicated by the direct trihedron (L, V, T) designating the longitudinal, vertical and transverse axes of the shower tray.

[0027] Reference is made to [Fig.l] showing a shower tray 1 according to the invention, seen in perspective.

[0028] The shower tray 1 consists of a tray placed on the floor, allowing water to be received and evacuated at the level of a drain plug (not shown), connecting the shower to a waste water evacuation system (not shown) and communicating with a drain orifice 3 made in the shower tray 1.

[0029] The shower tray 1 meets certain standards, in particular the NF EN 251 standard and the NF EN 14527+AL standard

[0030] The shower step, corresponding to the difference in level between the bathroom floor and that of the shower tray, does not exceed 2cm, or 4cm when the shower is accessible with an access ramp with a slope less than or equal to 33%.

[0031] The shower tray can be built-in, placed on the floor or raised above the floor.

[0032] The shape and dimensions of the shower tray 1 can be adapted according to the configuration of the bathroom in which it is installed.

[0033] For example, the height of the shower tray 1 is between 26mm and 31.5mm depending on its shape and dimensions.

[0034] In the exemplary embodiment shown in the figures, the shower tray 1 adopts a generally rectangular shape. However, according to a configuration not shown in the figures, the tray may have a distinct geometric shape, for example square, or be adapted to fit into a corner.

[0035] The shower tray 1 comprises, in a known manner, a sanitary plate 5, visible from outside receiver 1.

[0036] The sanitary plate 5 is intended to support a user. It can thus include a non-slip coating.

[0037] Also, the sanitary plate 5 has an integrated slope which facilitates the flow of water towards the drain orifice 3.

[0038] In an exemplary embodiment of the receiver 1, the sanitary plate 5 has a thickness of between approximately 2 mm and approximately 3 mm, for example approximately 2.5 mm.

[0039] The sanitary plate 5 is for example made from a thermoplastic material, for example from polymethyl methacrylate (“PMMA”) or from several thermoplastic materials comprising for example a mixture of acrylonitrile butadiene styrene (ABS) and PMMA.

[0040] The sanitary plate 5 can for example be obtained from a plate of thermoplastic material heated to a predetermined heating temperature and then thermoformed to give the plate of thermoplastic material the desired shape until the sanitary plate 5 is obtained. The plate of thermoplastic material can come commercially or be manufactured by a manufacturing process known to those skilled in the art, for example from recycled materials.

[0041] Reference is made to [Fig.2] showing the shower tray 1 in exploded view.

[0042] The shower tray 1 further comprises a reinforcing board 7, assembled to the sanitary plate 5 and supporting the sanitary plate 5, so that the reinforcement board 7 is not visible when the shower tray 1 is placed on the floor.

[0043] As is the case for the sanitary plate 5, the reinforcement board 7 is made entirely from a thermoplastic material or from several thermoplastic materials.

[0044] The reinforcing board 7 comprises a canvas 9, intended to come into contact with the sanitary plate 5 of the shower tray 1, and a reinforcing element 11, designed to provide rigidity to the shower tray 1.

[0045] By way of example, in one embodiment, the height of the receiver reinforcement board 7 is between approximately 26.5 mm and approximately 28.4 mm, for example between approximately 26.7 mm and approximately 28.2 mm.

[0046] By way of example, in another embodiment, the height of the receiver reinforcement board 7 is between approximately 22.5 mm and approximately 24.4 mm, for example between approximately 22.7 mm and approximately 24.2 mm.

[0047] Reference is made to [Fig.3] showing the reinforcing element 11 seen from below.

[0048] The reinforcing element 11 of the reinforcing board 7 comprises a central zone 13, a peripheral zone 15 extending partly from the central zone 13 and a draining zone 17 extending around the draining orifice 3.

[0049] In the embodiment illustrated in the figures, the central zone 13 adopts a general U shape.

[0050] The central zone 13 comprises a central portion 19 and two lateral portions 21, 23.

[0051] The central portion 19 of the central zone 13 has a front edge 19av, bordering a rear edge 17ar of the emptying zone 17.

[0052] The terms "front" and "rear" refer to the general orientation of the shower tray 1, the front corresponding to the area closest to the drain opening 3.

[0053] The lateral portions 21, 23 of the central zone 13 extend laterally the central portion 19 of the central zone 13 towards the front and laterally border the emptying zone 17.

[0054] The central zone 13 extends for example over a surface area comprised between approximately 60% and approximately 75% of the total surface area of ​​the reinforcing element 11. For example, the central zone 13 extends over a surface area equal to approximately 57% of the total surface area of ​​the reinforcing element 11.

[0055] In the embodiment illustrated in the figures, the central portion 19 of the central zone 13 extends over a width h of between approximately 50% and approximately 55% of the width 1TOT of the reinforcing element 11. For example, the central portion 19 of the central zone 13 extends over a width h approximately equal to 53% of the width 1TOT of the reinforcing element 11.

[0056] Also, in the embodiment illustrated in the figures, the central portion 19 extends over a length Li of between approximately 60% and approximately 70% of the length Ltot of the reinforcing element 11. For example, the central portion 19 of the central zone 13 extends over a length Li approximately equal to 64% of the length LT0T of the reinforcing element 11.

[0057] Also, in the embodiment illustrated in the figures, the lateral portions 21, 23 of the central zone 13 each extend over a width 12 comprised between approximately 15% and approximately 20% of the width 1TOT of the reinforcing element 11. For example, the lateral portions 21, 23 of the central zone 13 each extend over a width 12 approximately equal to 17% of the width 1TOT of the reinforcing element 11.

[0058] In the embodiment illustrated in the figures, the lateral portions 21, 23 of the central zone 13 each extend over a length L2 of between approximately 85% and approximately 90% of the length LT0T of the reinforcing element 11. For example, the lateral portions 21, 23 of the central zone 13 each extend over a length L2 approximately equal to 88% of the width LT0T of the reinforcing element 11.

[0059] The peripheral zone 15 also adopts a general U shape, inverted with respect to the U shape defined by the central zone 13.

[0060] The peripheral zone 15 comprises a central portion 25 and two lateral portions 27, 29.

[0061] The central portion 25 of the peripheral zone 15 comprises a rear edge 25 ar bordering front edges 21av, 23av of the lateral portions of the central zone 13 and bordering a front edge 17av of the emptying zone 17.

[0062] The lateral portions 27, 29 of the peripheral zone 15 each border laterally respectively the outer edges 31, 33 of the central zone 13.

[0063] Thus, the peripheral zone 15 extends at least over a part of the periphery of the reinforcing element 11.

[0064] The peripheral zone 15 extends for example over a surface area comprised between approximately 15% and approximately 25% of the total surface area of ​​the reinforcing element 11. For example, the peripheral zone 15 extends over a surface area equal to approximately 20% of the total surface area of ​​the reinforcing element 11.

[0065] Also, in the embodiment illustrated in the figures, the lateral portions 27, 29 of the peripheral zone 15 each extend over a width 13 comprised between approximately 5% and approximately 8% of the width 1TOT of the reinforcing element 11. For example, the width 13 of the lateral portions 27, 29 is approximately equal to 7% of the width 1TOT of the reinforcing element 11.

[0066] In the illustrated embodiment, the lateral portions 27, 29 of the peripheral zone 15 extend over a length L3 equal to the entire length LT0T of the reinforcing element 11.

[0067] Also, in the embodiment illustrated in the figures, the central portion 25 of the peripheral zone 15 extends over a width 14 comprised between approximately 80% and approximately 90% of the width 1TOT of the reinforcing element 11. For example, the width 14 of the central portion 25 is approximately equal to 86% of the width 1TOT of the reinforcing element 11.

[0068] Also, in the embodiment illustrated in the figures, the central portion 25 of the peripheral zone 15 extends over a length L4 comprised between approximately 10% and approximately 15% of the length LT0T of the reinforcing element 11. For example, the length L4 of the central portion 25 is approximately equal to 12% of the width LT0T of the reinforcing element 11.

[0069] In the exemplary embodiment illustrated in the figures, the emptying zone 17 has a generally rectangular geometric shape.

[0070] At its front edge 17av, the emptying zone 17 is bordered by the rear edge 25ar of the central portion 25 of the peripheral zone 15.

[0071] At its rear edge 17ar, the emptying zone 17 is bordered by the front edge 19av of the central portion 19 of the central zone 13.

[0072] The emptying zone 17 is bordered laterally by the lateral portions 21, 23 of the central zone 13.

[0073] The emptying zone 17 extends for example over a surface area of ​​between approximately 10% and approximately 15% of the total surface area of ​​the reinforcing element 11. For example, the emptying zone 17 extends over a surface area equal to approximately 13% of the total surface area of ​​the reinforcing element 11.

[0074] Also, in the embodiment illustrated in the figures, the width 15 of the emptying zone 17 is equal to the width 11 of the central portion 19 of the central zone 13.

[0075] The length L5 of the emptying zone 17 is between approximately 20% and approximately 30% of the length LT0T of the reinforcing element 11. For example, the length L5 of the emptying zone 17 is approximately equal to 25% of the length LT0T of the reinforcing element 11.

[0076] The reinforcing board 7 also comprises orifices 35 adapted to receive support feet of the reinforcing board 7. The number, shapes and locations of the orifices 35 shown in the figures are given by way of example only and can be modified depending on the shape, dimensions and desired stiffness of the reinforcing element 11.

[0077] For better visibility, we now refer to [Fig.4] showing the reinforcing element 11 seen from below, rotated 90° with respect to the representation given in [Fig.3].

[0078] The reinforcing element 11 of the reinforcing board 7 comprises a mesh comprising a set of ribs, making it possible to give the reinforcing element the stiffness necessary to take up the forces undergone by the sanitary plate 5 when the shower tray 1 is stressed by a user.

[0079] According to an exemplary embodiment, the width of each rib of the reinforcing element 11 is between approximately 3 mm and approximately 5 mm, for example 4 mm.

[0080] According to the invention, the mesh of the reinforcing element 11 comprises a set of central ribs 37, or base ribs, made in the central zone 13 of the reinforcing element 11.

[0081] The central ribs 37 comprise longitudinal ribs 39, extending substantially longitudinally relative to the reinforcing element 11 of the reinforcing board 7.

[0082] The central ribs 37 further comprise transverse ribs 41, extending substantially transversely relative to the reinforcing element 11 of the reinforcing board 7.

[0083] The central ribs 37 have a predetermined basic pitch Pi defined by the distance between two consecutive longitudinal ribs 39 or between two consecutive transverse ribs 41.

[0084] The basic pitch Pi of the central ribs 37 is regular, that is to say it is identical over the entire zone in which the central ribs 37 are practiced.

[0085] In an exemplary embodiment, the base pitch Pi is between approximately 30mm and approximately 70mm. In a particular exemplary embodiment, the base pitch Pi is approximately equal to 50mm.

[0086] Thanks to the configuration of the central ribs 37, the reinforcement board 7 satisfies a load test imposed by the standards NF EN 251 and NF EN 14527+A1 according to which a maximum deformation of 2mm under a static load of 100kg is authorized.

[0087] In one embodiment, the central ribs 37 represent between approximately 20% and approximately 30% of the total volume of the reinforcement board 7. For example, the central ribs represent approximately 24% of the total volume of the reinforcement board 7.

[0088] In one embodiment, the height of the central ribs 37 is between approximately 6mm and approximately 24mm, for example between approximately 6.86mm and approximately 23.29mm.

[0089] In another embodiment, the height of the central ribs 37 is between approximately 8mm and approximately 20mm, for example between approximately 8.92mm and approximately 19.33mm.

[0090] According to the invention, the mesh of the reinforcing element 11 further comprises a set of diagonal ribs 43 made in the central zone 13 of the reinforcing element 11 and extending substantially diagonally relative to the reinforcing element 11.

[0091] In the embodiment illustrated in the figures, the diagonal ribs 43 extend in two perpendicular directions. For this purpose, the diagonal ribs 43 comprise a first subset 43a of ribs and a second subset 43b of ribs, the first and second subsets of ribs 43a, 43b extending perpendicularly to each other.

[0092] The diagonal ribs 43 have a pitch P2 greater than the basic pitch Pi of the ribs 37.

[0093] The step P2 is equal to the distance present between two first consecutive sub-assemblies 43a or between two second consecutive sub-assemblies 43b.

[0094] In an exemplary embodiment, the pitch P2 is between approximately 75 mm and approximately 135 mm. In a particular exemplary embodiment, the pitch P2 is approximately equal to 105 mm.

[0095] The pitch P2 of the diagonal ribs 43 is regular, that is to say it is identical over the entire zone in which the diagonal ribs 43 are made.

[0096] The presence of the diagonal ribs 43 makes it possible to further increase the rigidity of the reinforcing element 11.

[0097] In the embodiment illustrated in the figures, the diagonal ribs 43 are made in the entirety of the central zone 13.

[0098] In one embodiment, the diagonal ribs 43 represent between approximately 6% and approximately 10% of the total volume of the reinforcement board 7. For example, the diagonal ribs 43 represent approximately 8% of the total volume of the reinforcement board 7.

[0099] In one embodiment, the height of the diagonal ribs 43 is between approximately 10mm and approximately 23mm, for example between approximately 10.57mm and approximately 22.78mm.

[0100] In another embodiment, the height of the diagonal ribs 43 is between approximately 12mm and approximately 19mm, for example between approximately 12.67mm and approximately 18.89mm.

[0101] According to the invention, the mesh of the reinforcing element 11 further comprises a set of peripheral ribs 45 made in the peripheral zone 15 of the reinforcing element 11.

[0102] The peripheral ribs 45 comprise longitudinal ribs 47, extending substantially longitudinally relative to the reinforcing element 11 of the reinforcing board 7.

[0103] The peripheral ribs 45 further comprise transverse ribs 49, extending substantially transversely relative to the reinforcing element 11 of the reinforcing board 7.

[0104] The peripheral ribs 45 have a pitch P3 defined by the distance between two consecutive longitudinal ribs 47 or between two consecutive transverse ribs 49.

[0105] The pitch P3 is less than the basic pitch Pi of the central ribs 37.

[0106] In an exemplary embodiment, the pitch P3 of the peripheral ribs 45 is equal to approximately half the basic pitch Pi of the central ribs 37.

[0107] This makes it possible to give good rigidity to the reinforcement board 7, in particular in terms of resistance to bending. Indeed, the configuration of the peripheral ribs 45 makes it possible to satisfy a lifting test, imposed by wear tests consisting of lifting by one of its corners the reinforcement board 7 placed flat on the ground and according to which a maximum deformation of flatness equal to 100 mm is authorized.

[0108] In an exemplary embodiment, the pitch P3 is between approximately 15 mm and approximately 35 mm. In a particular exemplary embodiment, the pitch P3 is approximately equal to 25 mm.

[0109] In one embodiment, the peripheral ribs 45 represent between approximately 5% and approximately 10% of the total volume of the reinforcement board 7. For example, the peripheral ribs 45 represent approximately 7% of the total volume of the reinforcement board 7.

[0110] In one embodiment, the height of the peripheral ribs 45 is between approximately 21mm and approximately 23mm, for example between approximately 21.77mm and approximately 22.93mm.

[0111] In one embodiment, the height of the peripheral ribs 45 is between approximately 17mm and approximately 20mm, for example between approximately 17.81mm and approximately 19.04mm.

[0112] According to the invention, the mesh of the reinforcing element 11 further comprises a set of emptying ribs 51 made in the emptying zone 17 of the reinforcing element 11.

[0113] The emptying ribs 51 comprise longitudinal ribs 53, extending substantially longitudinally relative to the reinforcing element 11 of the reinforcing board 7.

[0114] The emptying ribs 51 further comprise transverse ribs 55, extending substantially transversely relative to the reinforcing element 11 of the reinforcing board 7.

[0115] The emptying ribs 51 have a pitch P4 defined by the distance between two consecutive longitudinal ribs 53 or between two consecutive transverse ribs 55.

[0116] The pitch P4 is less than the basic pitch Pi of the central ribs 37.

[0117] The densification of the ribs of the reinforcing element 11 in the emptying zone 17 allows the emptying zone 17 to be reinforced, having a thinner thickness than the rest of the reinforcing element 11 due to the slopes made on the sanitary plate 5 to allow water to flow away. In this way, the thinness is counteracted by densification to respond to intensive use around the drain.

[0118] In an exemplary embodiment, the pitch P4 of the emptying ribs 51 is equal to approximately half the basic pitch Pi of the central ribs 37.

[0119] In an exemplary embodiment, the pitch P4 is between approximately 15mm and approximately 35mm. In a particular exemplary embodiment, the pitch P4 is approximately equal to 25mm.

[0120] Thanks to the configuration of the emptying ribs 51, the reinforcement board 7 satisfies a load test imposed by the standards NF EN 251 and NF EN 14527+A1 according to which a maximum deformation of 2mm under a static load of 100kg is authorized.

[0121] In one embodiment, the draining ribs 51 represent between approximately 2% and approximately 6% of the total volume of the reinforcement board 7. For example, the draining ribs 51 represent approximately 4% of the total volume of the reinforcement board 7.

[0122] In one embodiment, the height of the drain ribs 51 is between approximately 7mm and approximately 14mm, for example between approximately 7.05mm and 13.52mm.

[0123] In another embodiment, the height of the drain ribs 51 is between approximately 8mm and approximately 13mm, for example between approximately 8.92mm and approximately 12.84mm.

[0124] In one embodiment, the manufacturing of the reinforcement board 7 is carried out by a process of injection molding a thermoplastic material, which makes it possible to limit the manufacturing cost of the shower tray 1.

[0125] However, other manufacturing methods may be used to manufacture the reinforcement board 7. For example, the reinforcement board 7 may be manufactured by machining or by a casting molding process from a thermoplastic material.

[0126] In one embodiment, the thermoplastic material may come from bondable thermoplastic scraps from a thermoplastic material resulting from a production process of a part comprising a thermoplastic material, or from the end of life of a part comprising a thermoplastic material. Also, the thermoplastic scraps may come from the sanitary industry or any other type of industry.

[0127] Once the reinforcement board 7 is manufactured, it can be assembled to the sanitary plate 5 to form the shower tray 1, for example by pressing and gluing for example using a hot melt glue.

[0128] In one embodiment, in order to have a sufficient bonding surface and to avoid the presence of aspects on the sanitary plate 5, the fabric 9 of the reinforcement board 7 may have a thickness of between approximately 3 mm and approximately 8 mm, for example approximately 5 mm, which makes it possible to form an interface between the reinforcement board 7 and the sanitary plate 5, the fabric 9 coming into contact with the sanitary plate 5.

[0129] Also, in one embodiment, the canvas 9 represents between approximately 50% and approximately 60% of the total volume of the reinforcement board 7. For example, the canvas 9 represents approximately 57% of the total volume of the reinforcement board 7.

[0130] Thanks to the present invention, the shower tray 1 is entirely recyclable, unlike shower trays of the prior art where the reinforcement board is made of a thermosetting, non-recyclable material, which makes it possible to give the shower tray 1 an ecological character while having the necessary stiffness to absorb the forces undergone by the sanitary plate and while providing a thickness of reinforcement board compatible with the requirement in terms of projection height provided for by the standards relating to accessibility for people with reduced mobility.

[0131] As goes without saying, the present invention is not limited to the sole embodiments of this reinforcing board for a shower tray and of this shower tray comprising such a reinforcing board, described above solely as illustrative examples, but on the contrary it embraces all the variants involving the technical equivalents of the means described as well as their combinations if these fall within the scope of the invention.

Claims

Claims

1. Reinforcing board (7) of a shower tray (1), intended to be assembled with a sanitary plate (5) intended to support a user of said shower tray (1), said reinforcing board (7) comprising a reinforcing element (11) designed to confer rigidity to said shower tray (1), said reinforcing board (7) being characterized in that it is made of a thermoplastic material and in that said reinforcing element (11) comprises a mesh comprising: - a set of central ribs (37), comprising longitudinal ribs (39) and transverse ribs (41), formed in a central zone (13) extending over a surface area of ​​between approximately 60% and approximately 75% of the total surface area of ​​said reinforcing element (11), said central ribs (37) having a predetermined base pitch (Pi), - a set of diagonal ribs (43), made in said central zone (13), having a pitch (P2) greater than said base pitch (Pi) of said central ribs (37), - a set of peripheral ribs (45), comprising peripheral longitudinal ribs (47) and peripheral transverse ribs (49), formed in a peripheral zone (15) extending at least over a part of the periphery of said reinforcing element (11) and extending over a surface area of ​​between approximately 15% and approximately 25% of the total surface area of ​​said reinforcing element (11), said peripheral ribs (45) having a pitch (P3) less than said base pitch (Pi) of said central ribs (37), - a set of emptying ribs (51), comprising longitudinal ribs (53) and transverse ribs (55), formed in an emptying zone (17) extending around an emptying orifice (3) intended to receive a drain plug and extending over a surface area of ​​between approximately 10% and approximately 15% of said total surface area of ​​said reinforcing element (11), said emptying ribs (51) having a pitch (P4) less than said base pitch (PJ) of said central ribs (37).

2. Reinforcing board (7) according to claim 1, characterized in that the pitch (P3) of said peripheral ribs (45) and / or the pitch (P4) of said emptying ribs (51) is equal to approximately half of said base pitch (Pi) of said central ribs (37).

3. Reinforcing board (7) according to one of claims 1 or 2, characterized in that said diagonal ribs (43) comprise a first subset (43a) of ribs and a second subset (43b) of ribs, said second subset (43b) of ribs extending perpendicular to said first subset (43a) of ribs.

4. Reinforcing board (7) according to any one of claims 1 to 3, characterized in that: - said central ribs (37) represent between approximately 20% and approximately 30% of the total volume of said reinforcing board (7), and / or - said peripheral ribs represent between approximately 5% and approximately 10% of the total volume of said reinforcing board (7), and / or, - said emptying ribs (51) represent between approximately 2% and approximately 6% of the total volume of said reinforcing board (7), and / or, - said diagonal ribs (43) represent between approximately 6% and approximately 10% of the total volume of said reinforcing board (7).

5. Reinforcing board (7) according to any one of claims 1 to 4, characterized in that it comprises a fabric (9) intended to come into contact with said sanitary plate (5) of said shower tray (1), said fabric (9) representing between approximately 50% and approximately 60% of the total volume of said reinforcing board (7).

6. Reinforcing board (7) according to any one of claims 1 to 5, characterized in that the base pitch (Pi) of said central ribs (37) is between approximately 30mm and approximately 70mm.

7. Reinforcing board (7) according to any one of claims 1 to 6, characterized in that the pitch (P3) of said peripheral ribs (45) and / or the pitch (P4) of said emptying ribs (51) is between approximately 15mm and approximately 35mm.

8. Reinforcing board (7) according to any one of claims 1 to 7, characterized in that the pitch (P2) of said diagonal ribs (43) is between approximately 75mm and approximately 135mm.

9. Shower tray (1), comprising a sanitary plate (5) and a reinforcing board (7) assembled to said sanitary plate (5), characterized in that said reinforcing board (7) is according to any one of claims 1 to 8.

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