WO2023126606A1 - Floor or wall covering panel with increased resistance to disassembly - Google Patents

Floor or wall covering panel with increased resistance to disassembly Download PDF

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Publication number
WO2023126606A1
WO2023126606A1 PCT/FR2022/052503 FR2022052503W WO2023126606A1 WO 2023126606 A1 WO2023126606 A1 WO 2023126606A1 FR 2022052503 W FR2022052503 W FR 2022052503W WO 2023126606 A1 WO2023126606 A1 WO 2023126606A1
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WO
WIPO (PCT)
Prior art keywords
panel
wall
face
tongue
groove
Prior art date
Application number
PCT/FR2022/052503
Other languages
French (fr)
Inventor
Quentin RACAT
Original Assignee
Gerflor
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gerflor filed Critical Gerflor
Publication of WO2023126606A1 publication Critical patent/WO2023126606A1/en

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/02038—Flooring or floor layers composed of a number of similar elements characterised by tongue and groove connections between neighbouring flooring elements
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/0889—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections
    • E04F13/0894—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements characterised by the joints between neighbouring elements, e.g. with joint fillings or with tongue and groove connections with tongue and groove connections
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/16—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of fibres or chips, e.g. bonded with synthetic resins, or with an outer layer of fibres or chips
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F13/00—Coverings or linings, e.g. for walls or ceilings
    • E04F13/07—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor
    • E04F13/08—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements
    • E04F13/18—Coverings or linings, e.g. for walls or ceilings composed of covering or lining elements; Sub-structures therefor; Fastening means therefor composed of a plurality of similar covering or lining elements of organic plastics with or without reinforcements or filling materials or with an outer layer of organic plastics with or without reinforcements or filling materials; plastic tiles
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/102—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of fibrous or chipped materials, e.g. bonded with synthetic resins
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/105—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials of organic plastics with or without reinforcements or filling materials
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/10—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials
    • E04F15/107—Flooring or floor layers composed of a number of similar elements of other materials, e.g. fibrous or chipped materials, organic plastics, magnesite tiles, hardboard, or with a top layer of other materials composed of several layers, e.g. sandwich panels
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0138—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0153—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement

Definitions

  • the present invention relates to the field of floor or wall coverings, and more particularly relates to a covering panel, for example a slab or a strip, comprising coupling means with increased resistance to horizontal/vertical disassembly.
  • the invention applies to floor or wall covering panels, of which at least two sides are assembled by rotation of one panel relative to the other around an axis parallel to the assembled sides.
  • the lower coupling means comprise at least one lower groove formed from an upper face of the panel, and extending parallel to and along the first side so as to define a lower tongue extending end of the edge of the panel towards the upper face of said panel.
  • the upper coupling means comprise at least one upper groove formed from an underside of the panel, and extending parallel to and along the second side so as to define an upper tongue extending at the end of the edge of the panel towards the underside of said panel.
  • the upper and lower coupling means are complementary so that the upper tongue and the upper groove of a panel are intended to engage with the lower groove and the lower tongue on one side of an adjacent panel, and according to an assembly kinematics by rotation around an axis parallel to the assembled sides.
  • the disadvantage of this type of panel is that the coupling means are not robust enough to withstand a minimum passage of 25,000 cycles of a wheeled chair as defined in ISO 4918 or NF EN 425. In particular, the coupling means disengage and do not allow the standard to be met.
  • One of the aims of the invention is therefore to improve the resistance to disengagement of the coupling means being assembled by pivoting of a panel with respect to an adjacent panel around an axis of rotation parallel to the assembled sides, in particular to withstand the passage of a minimum of 25,000 cycles for a chair on wheels as defined in the ISO 4918 or NF EN 425 standard.
  • the invention also aims, in general, to obtain a panel comprising coupling means having better mechanical characteristics (vertical resistance, horizontal resistance, resistance to bending, etc.).
  • a floor or wall covering panel comprising at least a first side comprising upper coupling means, and a second side, parallel and opposite, comprising coupling means lower.
  • the lower coupling means comprise at least one lower groove formed from an upper face of the panel, and extending parallel and along the first side so as to define a lower tongue extending at the end of the edge from the panel to the top face of the panel.
  • the upper coupling means comprise at least one upper groove formed from an underside of the panel, and extending parallel and along the second side so as to define an upper tongue extending at the end of the edge of the panel towards the underside of said panel.
  • the upper and lower coupling means are complementary so that the upper tongue and the upper groove of a first side of a panel are intended to engage with the lower groove and the lower tongue of one side on a second side of an adjacent panel according to an assembly kinematics by rotation around an axis parallel to the assembled sides.
  • the lower tab has external and internal walls inclined with respect to a vertical plane towards the outside of the panel away from the underside of the panel;
  • the upper groove has external and internal walls inclined with respect to a vertical plane towards the outside of the panel away from the upper face of the panel;
  • the upper tongue has, at its free end, a lip projecting laterally towards the outside of the panel, so as to define an outer wall comprising an upper face on the side of the upper face of the panel, vertical or inclined with respect to a vertical plane towards the outside of the panel away from the upper face of the panel, and a lower face inclined at a greater angle than the upper face with respect to a vertical plane and towards the outside of the panel in s away from the upper face of the panel;
  • the lower groove has a lateral recess so as to define an internal wall comprising an upper face on the side of the upper face of the panel, vertical or inclined with respect to a vertical plane towards the outside of the panel while moving away from the face bottom of the panel, and a lower face inclined at a greater angle than the upper face relative to a vertical plane and towards the outside of the panel away from the underside of the panel.
  • the outer wall of the lower tab and the inner wall of the upper groove have complementary latching means.
  • this configuration makes it possible to have, on the one hand, a first locking effect of the upper tongue in the lower groove, but also a second locking effect of the lower tongue in the upper groove. of the panel.
  • This second latching effect located in a lower zone of the panel, makes it possible to improve the mechanical characteristics of the coupling means and in particular makes it possible to improve the resistance to disengagement of said coupling means, which resist better in horizontal traction this which makes it possible to satisfy the ISO 4918 or NF EN 425 standard relating to the wheel chair test.
  • the latching means can be of the ergo/notch type formed respectively on the outer wall of the lower tab and on the inner wall of the upper groove.
  • the outer wall of the lower tongue and the inner wall of the upper groove are stepped, so that the free end of the lower tongue and the bottom of the upper groove are widened to form the latching means as such.
  • the stepped outer wall of the lower tongue and the stepped inner wall of the upper groove each comprise, for example, an upper face on the side of the upper face of the panel, an intermediate face and a lower face.
  • the upper face of the stepped internal wall of the upper groove is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°, and is parallel to the upper face of the stepped outer wall of the lower tongue, in order to optimize the resistance to vertical and horizontal disassembly.
  • the upper face of the stepped outer wall of the lower tab is vertical or inclined at an angle of between 1° and 15°, preferably between 5° and 10°, towards the inside of the panel. moving away from the underside of the panel, in order to facilitate the assembly of the means coupling, in particular when bringing the lower tongue and the upper groove into contact in order to more easily initiate the rotational movement along an axis parallel to the edges of the panels.
  • the size of the lower tongue is also limited, which makes it possible to reduce the quantity of chips generated during the machining of the assembly means.
  • the upper face of the stepped internal wall of the upper groove is vertical or inclined at an angle of between 1° and 15°, preferably between 5° and 10°, towards the inside of the panel. moving away from the upper face of the panel, and more preferably parallel to the upper face of the stepped outer wall of the lower tongue, in order also to limit the size of the upper groove.
  • the intermediate face of the stepped internal wall of the upper groove is more inclined than the upper face and the lower face, and is inclined at an angle of between 45° and 90°, preferably 60° towards the outside of the panel away from the upper face of the panel, and is parallel to the intermediate face of the stepped outer wall of the lower tab.
  • the intermediate face of the stepped outer wall of the lower tongue and the intermediate face of the stepped inner wall of the upper groove measure between 0.3 and 2 mm, preferably between 0.4 and 1.5 mm, this in order to obtain a better resistance to the vertical unclipping of the system.
  • the lower face of the stepped internal wall of the upper groove is parallel or less inclined towards the outside of the panel, moving away from the upper face of the panel, than the lower face of the stepped outer wall of the tongue. lower, and is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, and more preferably between 25° and 30°.
  • the lower face of the stepped outer wall of the lower tongue is parallel to or more inclined than the lower face of the stepped inner wall of the upper groove, and is also inclined at an angle between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°.
  • the inner wall of the lower tongue is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°, and is parallel to the outer wall of the upper groove, and this to optimize the resistance to vertical/horizontal disassembly.
  • the upper face of the stepped outer wall of the lower tongue is parallel to the inner wall of the lower tongue.
  • the upper face of the outer wall of the upper tongue is vertical or inclined at an angle of between 1° and 10°, preferably 5°, and is parallel to the upper face of the inner wall of the lower groove. .
  • the lower face of the outer wall of the upper tab is, for its part, inclined at an angle of between 45° and 80°, preferably between 55° and 70°, and is parallel to the lower face of the wall internal of the lower groove.
  • FIG. 1 is a cross-section of the twist-fit coupling means in an assembled position.
  • FIG. 2 illustrates the twist-to-fit upper coupling means.
  • FIG. 3 illustrates the twist-fit lower coupling means.
  • FIG. 4 illustrates the assembly kinematics by rotation of the upper and lower coupling means.
  • FIG. 5 illustrates the vertical disassembly of the lower and upper coupling means.
  • FIG. 6 illustrates the horizontal disassembly of the lower and upper coupling means.
  • FIG. 7 is a schematic representation of two panels according to the invention, with two opposite edges assembled at an angle by rotation about an axis parallel to said edges, and two opposite edges assembled vertically.
  • FIG. 8 is a partial cross-sectional view of a particular embodiment of the vertically joined edges of two panels being joined.
  • FIG. 9 is a partial cross-sectional view similar to that of Figure 8, the two panels being assembled.
  • FIG. 10 illustrates an alternative embodiment of the twist-fit lower coupling means.
  • FIG. 11 illustrates a second alternative embodiment of the twist-fit lower coupling means.
  • FIG.12 is a cross-section of an alternate, compact embodiment of the twist-fit coupling means in an assembled position.
  • FIG.13 is a cross-section of an embodiment similar to that of Fig. 12 of the twist-fit coupling means in an assembled position.
  • the invention relates to a panel (1) having the shape of a blade or slab for the production of a floor or wall covering, for example intended for freestanding.
  • the panel (1) according to the invention has at least a first side comprising upper coupling means (2a) and a second, parallel and opposite side comprising lower coupling means (2b) intended to coupling with each other according to a kinematics by rotation around an axis parallel to said sides.
  • the panel (1) comprises for example two other sides, adjacent to the first and second sides, parallel to each other and opposite, and comprising complementary male (6) and female (7) coupling means intended to couple according to a vertical kinematics, see figures 7 to 9.
  • the panel (1) according to the invention is advantageous in that it has an optimal resistance to horizontal disassembly, that is to say for example greater than approximately 500N/10 cm, allowing it in particular to resist tests of the chair on casters according to the ISO 4918 or NF EN 425 standard.
  • the panel (1) of the invention is preferably made of a plastic material, such as polyvinyl chloride, for example plasticized and rigid, and optionally comprising a mineral filler.
  • a plastic material such as polyvinyl chloride, for example plasticized and rigid, and optionally comprising a mineral filler.
  • the panel (1) can be obtained in any suitable plastic material.
  • the panel (1) has a core bonded to a decorative layer consisting of a decorative film bonded to a transparent surface layer.
  • the core can be monolayer or multilayer, and is made for example from plastic material such as polyvinyl chloride, polypropylene, polyurethane, thermoplastic polyurethane, polyethylene, polyethylene terephthalate, or any other suitable plastic material, and optionally comprising fillers in the form of fibres, shavings, dust or sawdust and/or mineral fillers, for example chalk, lime, talc, and one or more plasticizers in order to define the rigidity of the core.
  • plastic material such as polyvinyl chloride, polypropylene, polyurethane, thermoplastic polyurethane, polyethylene, polyethylene terephthalate, or any other suitable plastic material, and optionally comprising fillers in the form of fibres, shavings, dust or sawdust and/or mineral fillers, for example chalk, lime, talc, and one or more plasticizers in order to define the rigidity of the
  • the core may optionally be based on urea formaldehyde or melamine formaldehyde and wood, for example layers of medium density fibers (MDF) or high density fiber (HDF).
  • MDF medium density fibers
  • HDF high density fiber
  • Each layer can also be a layer of laminated wood, wood composite (WPC “wood plastic composite” in English).
  • WPC wood plastic composite
  • Each layer can be compact or foamed, for example, the core can be made with a foamed layer of rigid polyvinyl chloride sandwiched between two layers of rigid and compact polyvinyl chloride.
  • the assembly of this type of panel (1) is done in an inclined manner, for example at an angle between 10° and 50°, and according to a kinematics by rotation on a first edge around a axis parallel to said edge, and according to vertical kinematics on a second adjacent edge.
  • the installer lays a first line of panels (1), assembling them side by side according to a vertical assembly kinematics. Then, the installer begins a second line of panels (1) by assembling a first panel (1), according to an inclined kinematics with respect to the panels (1) of the previous line.
  • the following panels (1) of the second line are assembled according to an inclined kinematics with respect to the panels (1) of the previous line and, by a pivoting movement of the panel (1) in the direction of the floor or wall, the panel (1 ) is assembled to the adjacent panel (1) according to a vertical kinematics.
  • the upper coupling means (2a) comprise, for their part and in a complementary manner, at least one upper groove (Rs) formed from an underside of the panel (1 ), extending parallel and along the second side so as to define an upper tongue (Ls) extending at the end of the edge of the panel (1) towards the underside of said panel (1).
  • the lower coupling means (2b) comprise at least one lower groove (Ri) formed from an upper face of the panel (1), and extending parallel and along the first side so as to define a lower tongue (Li) extending at the end of the edge of the panel (1) towards the upper face of the panel (1).
  • the upper (2a) and lower (2b) coupling means are complementary so that the upper tongue (Ls) and the upper groove (Rs) on a first side of the panel (1) are intended to engage with the lower groove (Ri) and the lower tongue (Li) of a second side of an adjacent panel (1), in particular according to the assembly kinematics by rotation about an axis parallel to said sides.
  • the lower tongue (Li) has inner (F) and outer walls inclined with respect to a vertical plane towards the outside of the panel (1) away from the lower face of the panel (1)
  • the upper groove (Rs) has outer (F') and inner walls inclined relative to a vertical plane towards the outside of the panel (1) away from the upper face of the panel ( 1 ).
  • the internal wall (F) of the lower tab (Li) is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, and preferably between 5° and 30°.
  • the outer wall of the lower tongue (Li) has snap-fastening means (4) with the inner wall of the upper groove (Rs), which are for example stepped so that the free end of the lower tongue (Li) and the bottom of the upper groove (Rs) are widened to form said latching means (4).
  • the stepped outer wall of the lower tongue (Li) and the stepped inner wall of the upper groove (Rs) each comprise an upper face (A, A') on the side of the upper face of the panel (1), a intermediate pan (B, B') and a lower pan (C, C').
  • the upper face (A') of the stepped internal wall of the upper groove (Rs) is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, and more preferably between 25° and 45°. ° and 30°, and is parallel to the upper face (A) of the stepped outer wall of the lower tongue (Li), to optimize resistance to vertical/horizontal disassembly of the lower (2b) and upper coupling means.
  • the upper face (A) of the stepped outer wall of the lower tongue (Li) is vertical or inclined at an angle of between 1° and 15°, preferably between 5° and 10°, towards the inside of the panel (1) away from the underside of the panel (1), in order to facilitate the assembly of the coupling means (2a, 2b), in particular when bringing the lower tongue (Li) and the upper groove (Rs) into contact in order to more easily initiate the rotational movement along an axis parallel to the edges of the panels (1).
  • the size of the lower tab (Li) is also limited, which makes it possible to reduce the quantity of chips generated during the machining of the assembly means.
  • the upper face (A') of the stepped internal wall of the upper groove is vertical or inclined at an angle of between 1° and 15°, preferably between 5° and 10°, towards the inside the panel (1) away from the upper face of the panel (1), and more preferably parallel to the upper face (A) of the stepped outer wall of the lower tongue (Li), in order to also limit the size of the upper groove (Rs).
  • the intermediate face (B') of the stepped internal wall of the upper groove (Rs) is more inclined than the upper face (A') and the lower face (C'), and is inclined at an angle between 45 ° and 90, preferably 60°, and is parallel to the intermediate face (B) of the stepped outer wall of the lower tab (Li).
  • the intermediate face (B) of the stepped outer wall of the lower tongue and the intermediate face (B') of the stepped inner wall of the upper groove measure between 0.3 and 2 mm, preferably between 0. 4 and 1.5 mm in order to obtain better resistance to vertical unclipping of the system.
  • the lower face (C') of the stepped internal wall of the upper groove (Rs) is parallel, or less inclined to facilitate engagement of the lower tab (Li), than the lower face (C) of the stepped outer wall of the lower tongue (Li), and is inclined at an angle between 5° and 45°, preferably between 20° and 45°, and more preferably between 25° and 30°, to optimize resistance to disassembly vertical/horizontal.
  • the lower face (C) of the stepped outer wall of the lower tongue (Li) is, for its part, parallel or more inclined than the face.
  • bottom (C') of the stepped internal wall of the upper groove (Rs) is inclined at an angle comprised between 5° and 45°, preferably between 20° and 45°, and more preferably between 25° and 30° .
  • the upper face (A) of the lower tab (Li) is less inclined than the lower face (C) to facilitate machining.
  • the upper tab (Ls) has, at its free end, a lip (5) projecting laterally and outwardly from the panel (1) so as to define an outer wall comprising an upper face (E') on the side of the upper face of the panel (1), vertical or inclined with respect to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1 ), and a lower face (G') inclined at a greater angle than the upper face (E') with respect to a vertical plane and towards the outside of the panel (1) away from the upper face of the panel (1).
  • the lower groove (Ri) has a lateral recess (5a) towards the inside of the panel (1) so as to define an internal wall comprising an upper face (E) on the side of the upper face of the panel (1), vertical or inclined with respect to a vertical plane towards the outside of the panel (1) away from the underside of the panel (1), and a lower face (G) inclined at a greater angle important that the upper face (E) with respect to a vertical plane towards the outside of the panel (1) away from the underside of the panel (1).
  • the upper face (E') of the outer wall of the upper tongue (Ls) is vertical or inclined at an angle of between 1° and 10°, preferably 5°, and is parallel to the upper face.
  • the lower face (G') of the outer wall of the upper tongue (Ls) is, for its part, inclined at an angle of between 45° and 80°, preferably between 55° and 70°, and is parallel to the lower face (G) of the inner wall of the lower groove (Ri).
  • the upper tongue (Ls) has a greater width, of 0.2 mm or less, compared to that of the lower groove (Ri), to obtain an assembly in force. After assembly, however, there remains a clearance between the upper faces (A, A') of the stepped walls of the lower tongue (Li) and of the upper groove (Rs) in order to allow assembly.
  • the assembly kinematics is done with an inclined approach, and according to a kinematics by rotation around an axis parallel to the assembled sides.
  • the upper tongue (Ls) comprises for example an end wall having a curved portion (8) intended to roll or pivot in the bottom of the lower groove (Ri) during assembly.
  • the upper face (A) of the stepped outer wall of the lower tongue (Li) slides against the lower face (C') of the stepped inner wall of the upper groove (Rs).
  • the distance taken between the upper edge of the upper face (E') of the outer wall of the upper tongue (Ls) and the upper edge of the outer wall (F') of the upper groove ( Rs), is identical to or slightly less than the distance taken between the same upper edge of the upper face (E') of the outer wall of the upper tongue (Ls) and the lower edge of the outer wall (F') of the groove higher (Rs), and this to ensure better locking of the assembly after assembly.
  • the opposite edges with vertical assembly consist of an edge comprising male coupling means (6) formed from an underside of the panel (1), and an edge opposite comprising complementary female coupling means (7) formed from an upper face of the panel (1).
  • the male coupling means (6) of the vertical assembly edges (3) comprise a male groove (6a) extending along the edge and opening onto the underside of the panel (1), so as to define a male tab (6b).
  • the female coupling means (7) of the vertical assembly edges (3) comprise a female groove (7a) extending along the edge and opening onto the upper face of the panel (1) , so as to define a female tongue (7b).
  • the male and female tabs (6b, 7b) comprise substantially rectangular cross-sections, and are flexible and elastically deformable to allow their engagement in the corresponding female and male grooves (6a, 7a).
  • the male tab (6b) has an outer wall (6c) inclined with respect to a vertical plane and towards the outside of the panel (1), at an angle of between 1 and 45°, and preferably of between 5 and 15°.
  • An inclination of the outer wall (6c) of between 5 and 15° makes it possible to obtain a good compromise between the ease of assembly of the panels (1) and the resistance to horizontal disassembly of the coupling means.
  • the installer sees the female groove (7a) and can therefore easily position the outer wall (6c) of the male tongue (6b) in line with the female groove (7a) to begin assembly.
  • the two panels (1) approach each other. This further facilitates the laying operation, and the machining constraints to have perfect contact on the surface of the panels (1) are also easier to comply with.
  • the male tongue (6b) has an internal wall inclined with respect to a vertical plane and towards the outside or the inside of the panel (1).
  • the male tongue (6b) has an internal wall inclined towards the outside of the panel (1), at an angle between 1 and 45° , and preferably between 5 and 15°.
  • An inclination of the internal wall of the male tab (6b) of between 5 and 15° also makes it possible to obtain a good compromise between the ease of assembly of the panels (1) and the resistance to horizontal disassembly of the coupling means.
  • the male tab (6b) has an inner wall inclined at the same angle as the outer wall (6c). This characteristic also makes it possible to facilitate the manufacture, and in particular the machining of the complementary male (6) and female (7) coupling means.
  • the male coupling means (6) of the vertically assembled edges (3) comprise a lug (10) or a notch (11), and the female coupling means (7) edges with vertical assembly (3) comprise a notch (11) or a complementary lug (10) forming, after assembly of two adjacent panels (1), stops against vertical movement between two panels (1) adjacent assembled.
  • the lug (10) or notch (11) is made on the outer wall of the male tongue (6b) and, in a complementary manner, the notch (11) or lug (10) is made ( e) on an internal wall of the female groove (7a).
  • the lug (10) or notch (11) is formed on the outer wall of the female tab (7b) and, in a complementary manner, the notch (11) or lug (10) is formed on an inner wall of the male groove (6a).
  • these two embodiments are combined so that the male coupling means (6) of the edges with vertical assembly (3) comprise two lugs (10) or notches (11), and the means of coupling females (7) of the vertical assembly edges (3) comprise two notches (11) or lugs (10) complementary.
  • the male (6a) and female (7a) grooves each have an outer wall, that is to say positioned, not on the side of the body of the panel (1) , but on the side of the outside of the panel (1), intended to be in contact, after assembly of the two panels (1).
  • the grooves (6a, 7a) and tongues (6b, 7b) have suitable widths and/or inclinations.
  • the tongues (6b, 7b) and grooves (6a, 7a) have widths of the order of 2 mm, and are inclined by 10° with respect to the vertical and towards the outside of the panel ( 1 ).
  • the outer wall of the male groove (6a) is in contact with the outer wall of the female groove (7a).
  • these walls in contact are parallel to each other.
  • the male tongue (6b) is in contact with the bottom of the female groove (7a) in order to have a vertical support.
  • the female tongue (7b) comprises a chamfered part (12) at the level of the underside of the panel (1) and forming an angle of between 2° and 20° relative to the underside of the panel (1).
  • the chamfered part (12) allows the lowering of the female tongue (7b) to come, by deformation, into contact with the ground, and thus provide a reduction of assembly effort.
  • the chamfered part (12) of the female tongue (7b) extends to the right of the upper internal edge of the female tongue (7b).
  • the upper face of the panel (1) may also have chamfers (13) at the level of the male tongue (6b) and the female groove (7a) in order to participate in the general aesthetics of the panels ( 1), after assembly.
  • Each chamfer (13) forms an angle of between 2° and 20° with respect to the upper face of the panel (1).
  • the interface between the two assembled panels (1) thus forms a V-shaped groove, see figure 9.
  • the size of the lower tongue (Li) and of the lower groove (Ri) along an "X" axis parallel to the ground and perpendicular to the axis of rotation of the panels during assembly is reduced.
  • the distance (A1) measured on the X axis between the end of the outer wall of the lower tongue (Li) and the zone of the upper face (E) closest to the outside of the panel is included between 3.5 and 4 mm and the distance (A2) measured on the X axis between the zone of the upper face (E) closest to the outside of the panel and the end of the recess (5a) on the side of the lower groove (Ri) towards the inside of the panel is between 1 and 1.5 mm.
  • the upper tab (Ls) has at its free end, a lip (5) projecting laterally outwards from the panel (1), so as to define an outer wall comprising a upper (E') on the side of the upper face of the panel (1), vertical or inclined with respect to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1), a lower face (G' ) inclined at a greater angle than the upper face (E ') with respect to a vertical plane and towards the outside of the panel (1) away from the upper face of the panel (1) and an intermediate face ( G”) inclined at a smaller angle than the upper face (E') with respect to a vertical plane so as to present an angle of between 0° and 15°, preferably less than 5°, with respect to the vertical.
  • the distance (B1) measured on the X axis between the meeting point between the outer wall (F') and the curved portion (8) and the end of the inner wall of the upper groove (Rs) the closest to the inside of the panel is between 2 and 3mm, preferably between 2.2 and 2.6mm
  • the distance (B2) measured on the X axis between the zone of the intermediate face (G”) closest from the outside of the panel and the meeting point between the outer wall (F') and the curved portion (8) is between 2 and 3 mm, preferably between 2.4 and 2.8 mm.
  • the applicant carried out horizontal and vertical disassembly resistance tests of an assembly means according to FIGS. 12 and 13, as well as bending tests before disassembly, and tests of the force required for assembly with a panel having the following proportions: A1: 3.79mm; A2: 1.28mm; B1: 2.44mm; B2: 2.61mm; section B: 0.48mm.
  • the results are compiled in the table below.
  • This embodiment therefore makes it possible to reduce the size and the quantity of chips generated during the machining of the assembly means, while maintaining very good resistance to vertical and horizontal unclipping.

Abstract

The invention relates to a floor or wall covering panel (1) comprising at least one first side that comprises upper coupling means (2a) and a second side, parallel to and opposite the first side, that comprises lower coupling means (2b); according to the invention: - the lower tongue (Li) has outer and inner walls (F) that are inclined relative to a vertical plane towards the outside of the panel (1) away from the lower face of the panel (1): - the upper groove (Rs) has outer and inner walls (F') that are inclined relative to a vertical plane towards the outside of the panel (1) away from the lower face of the panel (1); - the upper tongue (Ls) has, at its free end, a lip (5) that projects laterally outward from the panel (1) so as to define an outer wall comprising an upper section (E') on the upper face side of the panel (1) which is vertical or inclined relative to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1) and a lower section (G') that is inclined by a larger angle than the upper section (E') relative to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1); - the lower groove (Ri) has a lateral recess (5a) towards the inside of the panel (1) so as to define an inner wall comprising an upper section (E) on the upper face side of the panel (1) which is vertical or inclined relative to a vertical plane towards the outside of the panel (1) away from the lower face of the panel (1) and a lower section (G) that is inclined by a larger angle than the upper section (E) relative to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1); - the outer wall of the lower tongue (Li) and the inner wall of the upper groove (Rs) having complementary snap-fitting means (4).

Description

Description Description
Titre de l’invention : Panneau de revêtement de sol ou mur à résistance accrue au désassemblageTitle of invention: Floor or wall panel with increased resistance to disassembly
Domaine technique Technical area
[0001] La présente invention se rapporte au domaine des revêtements de sol ou mur, et concerne plus particulièrement un panneau de revêtement, par exemple une dalle ou une lame, comprenant des moyens d’accouplement à résistance accrue au désassemblage horizontal/vertical. The present invention relates to the field of floor or wall coverings, and more particularly relates to a covering panel, for example a slab or a strip, comprising coupling means with increased resistance to horizontal/vertical disassembly.
[0002] L’invention s’applique aux panneaux de revêtement de sol ou mur, dont au moins deux côtés s’assemblent par rotation d’un panneau par rapport à l’autre autour d’un axe parallèle aux côtés assemblés. The invention applies to floor or wall covering panels, of which at least two sides are assembled by rotation of one panel relative to the other around an axis parallel to the assembled sides.
Art antérieur Prior art
[0003] Il est connu de l’art antérieur, les documents US4426820, W02020/083614, WO2021 105798, qui décrivent un panneau de revêtement de sol comprenant au moins un premier côté comprenant des moyens d’accouplement supérieurs et un deuxième côté, parallèle et opposé, comprenant des moyens d’accouplement inférieurs. [0003] It is known from the prior art, the documents US4426820, W02020/083614, WO2021 105798, which describe a flooring panel comprising at least a first side comprising upper coupling means and a second side, parallel and opposed, comprising lower coupling means.
[0004] Dans ces documents, les moyens d’accouplements inférieurs comprennent au moins une rainure inférieure ménagée depuis une face supérieure du panneau, et s’étendant parallèlement et le long du premier côté de sorte à définir une languette inférieure s’étendant à l’extrémité du bord du panneau vers la face supérieure dudit panneau. [0004] In these documents, the lower coupling means comprise at least one lower groove formed from an upper face of the panel, and extending parallel to and along the first side so as to define a lower tongue extending end of the edge of the panel towards the upper face of said panel.
[0005] Les moyens d’accouplements supérieurs comprennent au moins une rainure supérieure ménagée depuis une face inférieure du panneau, et s’étendant parallèlement et le long du deuxième côté de sorte à définir une languette supérieure s’étendant à l’extrémité du bord du panneau vers la face inférieure dudit panneau. [0005] The upper coupling means comprise at least one upper groove formed from an underside of the panel, and extending parallel to and along the second side so as to define an upper tongue extending at the end of the edge of the panel towards the underside of said panel.
[0006] Les moyens d’accouplement supérieurs et inférieurs sont complémentaires de sorte que la languette supérieure et la rainure supérieure d’un panneau sont destinées à s’engager avec la rainure inférieure et la languette inférieure d’un côté d’un panneau adjacent, et selon une cinématique d’assemblage par rotation autour d’un axe parallèle aux côtés assemblés. [0006] The upper and lower coupling means are complementary so that the upper tongue and the upper groove of a panel are intended to engage with the lower groove and the lower tongue on one side of an adjacent panel, and according to an assembly kinematics by rotation around an axis parallel to the assembled sides.
[0007] L’inconvénient de ce type de panneau est que les moyens d’accouplements ne sont pas suffisamment robustes pour résister à un passage de 25000 cycles minimum d’une chaise à roulettes tel que défini dans la norme ISO 4918 ou NF EN 425. En particulier, les moyens d’accouplement se désengagent et ne permettent pas de satisfaire la norme. [0007] The disadvantage of this type of panel is that the coupling means are not robust enough to withstand a minimum passage of 25,000 cycles of a wheeled chair as defined in ISO 4918 or NF EN 425. In particular, the coupling means disengage and do not allow the standard to be met.
[0008] Cet inconvénient est d’autant plus exacerbé lorsque le panneau de revêtement est posé sur des sous-couches souples pour améliorer l’acoustique. [0008] This drawback is all the more exacerbated when the covering panel is placed on flexible underlays to improve the acoustics.
[0009] Il est également connu les documents WO2021/144613 et WO2016/029255 qui ne donnent pas entière satisfaction. [0009] Documents WO2021/144613 and WO2016/029255 are also known, which are not entirely satisfactory.
Exposé de l’invention Disclosure of Invention
[0010] L’un des buts de l’invention est donc d’améliorer la résistance au désengagement des moyens d’accouplement s’assemblant par pivotement d’un panneau par rapport à un panneau adjacent autour d’un axe de rotation parallèle aux côtés assemblés, notamment pour résister au passage de 25000 cycles minimum d’une chaise à roulettes tel que défini dans la norme ISO 4918 ou NF EN 425. One of the aims of the invention is therefore to improve the resistance to disengagement of the coupling means being assembled by pivoting of a panel with respect to an adjacent panel around an axis of rotation parallel to the assembled sides, in particular to withstand the passage of a minimum of 25,000 cycles for a chair on wheels as defined in the ISO 4918 or NF EN 425 standard.
[0011] L’invention vise également, d’une manière générale, à obtenir un panneau comprenant des moyens d’accouplement présentant de meilleures caractéristiques mécaniques (résistance verticale, résistance horizontale, résistance à la flexion, ...). [0012] À cet effet, il a été mis au point un panneau de revêtement de sol ou mur comprenant au moins un premier côté comprenant des moyens d’accouplement supérieurs, et un deuxième côté, parallèle et opposé, comprenant des moyens d’accouplements inférieurs. The invention also aims, in general, to obtain a panel comprising coupling means having better mechanical characteristics (vertical resistance, horizontal resistance, resistance to bending, etc.). For this purpose, a floor or wall covering panel has been developed comprising at least a first side comprising upper coupling means, and a second side, parallel and opposite, comprising coupling means lower.
[0013] Les moyens d’accouplement inférieurs comprennent au moins une rainure inférieure ménagée depuis une face supérieure du panneau, et s’étendant parallèlement et le long du premier côté de sorte à définir une languette inférieure s’étendant à l’extrémité du bord du panneau vers la face supérieure du panneau. [0013] The lower coupling means comprise at least one lower groove formed from an upper face of the panel, and extending parallel and along the first side so as to define a lower tongue extending at the end of the edge from the panel to the top face of the panel.
[0014] Les moyens d’accouplement supérieurs comprennent au moins une rainure supérieure ménagée depuis une face inférieure du panneau, et s’étendant parallèlement et le long du deuxième côté de sorte à définir une languette supérieure s’étendant à l’extrémité du bord du panneau vers la face inférieure dudit panneau. [0014] The upper coupling means comprise at least one upper groove formed from an underside of the panel, and extending parallel and along the second side so as to define an upper tongue extending at the end of the edge of the panel towards the underside of said panel.
[0015] Les moyens d’accouplement supérieurs et inférieurs sont complémentaires de sorte que la languette supérieure et la rainure supérieure d’un premier côté d’un panneau sont destinées à s’engager avec la rainure inférieure et la languette inférieure d’un côté d’un deuxième côté d’un panneau adjacent selon une cinématique d’assemblage par rotation autour d’un axe parallèle aux côtés assemblés. [0015] The upper and lower coupling means are complementary so that the upper tongue and the upper groove of a first side of a panel are intended to engage with the lower groove and the lower tongue of one side on a second side of an adjacent panel according to an assembly kinematics by rotation around an axis parallel to the assembled sides.
[0016] Selon l’invention : [0016] According to the invention:
- la languette inférieure présente des parois externe et interne inclinées par rapport à un plan vertical vers l’extérieur du panneau en s’éloignant de la face inférieure du panneau ; - the lower tab has external and internal walls inclined with respect to a vertical plane towards the outside of the panel away from the underside of the panel;
- la rainure supérieure présente des parois externe et interne inclinées par rapport à un plan vertical vers l’extérieur du panneau en s’éloignant de la face supérieure du panneau ; - the upper groove has external and internal walls inclined with respect to a vertical plane towards the outside of the panel away from the upper face of the panel;
- la languette supérieure présente au niveau de son extrémité libre, une lèvre en saillie latéralement vers l’extérieur du panneau, de sorte à définir une paroi externe comprenant un pan supérieur du côté de la face supérieure du panneau, vertical ou incliné par rapport à un plan vertical vers l’extérieur du panneau en s’éloignant de la face supérieure du panneau, et un pan inférieur incliné d’un angle plus important que le pan supérieur par rapport à un plan vertical et vers l’extérieur du panneau en s’éloignant de la face supérieure du panneau ; - the upper tongue has, at its free end, a lip projecting laterally towards the outside of the panel, so as to define an outer wall comprising an upper face on the side of the upper face of the panel, vertical or inclined with respect to a vertical plane towards the outside of the panel away from the upper face of the panel, and a lower face inclined at a greater angle than the upper face with respect to a vertical plane and towards the outside of the panel in s away from the upper face of the panel;
- la rainure inférieure présente un évidement latéral de sorte à définir une paroi interne comprenant un pan supérieur du côté de la face supérieure du panneau, vertical ou incliné par rapport à un plan vertical vers l’extérieur du panneau en s’éloignant de la face inférieure du panneau, et un pan inférieur incliné d’un angle plus important que le pan supérieur par rapport à un plan vertical et vers l’extérieur du panneau en s’éloignant de la face inférieure du panneau. - the lower groove has a lateral recess so as to define an internal wall comprising an upper face on the side of the upper face of the panel, vertical or inclined with respect to a vertical plane towards the outside of the panel while moving away from the face bottom of the panel, and a lower face inclined at a greater angle than the upper face relative to a vertical plane and towards the outside of the panel away from the underside of the panel.
[0017] Toujours selon l’invention, la paroi externe de la languette inférieure et la paroi interne de la rainure supérieure présentent des moyens d’encliquetage complémentaires. [0018] De cette manière, cette configuration permet d’avoir, d’une part, un premier effet d’encliquetage de la languette supérieure dans la rainure inférieure, mais également un deuxième effet d’encliquetage de la languette inférieure dans la rainure supérieure du panneau. Ce deuxième effet d’encliquetage, situé dans une zone inférieure du panneau, permet d’améliorer les caractéristiques mécaniques des moyens d’accouplement et permet notamment d’améliorer la résistance aux désengagements desdits moyens d’accouplement, lesquels résistent mieux en traction horizontale ce qui permet de satisfaire la norme ISO 4918 ou NF EN 425 relative au test de la chaise à roulettes. Still according to the invention, the outer wall of the lower tab and the inner wall of the upper groove have complementary latching means. In this way, this configuration makes it possible to have, on the one hand, a first locking effect of the upper tongue in the lower groove, but also a second locking effect of the lower tongue in the upper groove. of the panel. This second latching effect, located in a lower zone of the panel, makes it possible to improve the mechanical characteristics of the coupling means and in particular makes it possible to improve the resistance to disengagement of said coupling means, which resist better in horizontal traction this which makes it possible to satisfy the ISO 4918 or NF EN 425 standard relating to the wheel chair test.
[0019] Les moyens d’encliquetage peuvent être du type ergo/encoche ménagés respectivement sur la paroi externe de la languette inférieure et sur la paroi interne de la rainure supérieure. [0019] The latching means can be of the ergo/notch type formed respectively on the outer wall of the lower tab and on the inner wall of the upper groove.
[0020] Selon une forme de réalisation préférée, la paroi externe de la languette inférieure et la paroi interne de la rainure supérieure sont étagées, de sorte que l’extrémité libre de la languette inférieure et le fond de la rainure supérieure sont élargies pour former les moyens d’encliquetage en tant que tels. According to a preferred embodiment, the outer wall of the lower tongue and the inner wall of the upper groove are stepped, so that the free end of the lower tongue and the bottom of the upper groove are widened to form the latching means as such.
[0021] Dans cette configuration, la paroi externe étagée de la languette inférieure et la paroi interne étagée de la rainure supérieure comprennent par exemple chacune un pan supérieur du côté de la face supérieure du panneau, un pan intermédiaire et un pan inférieur. In this configuration, the stepped outer wall of the lower tongue and the stepped inner wall of the upper groove each comprise, for example, an upper face on the side of the upper face of the panel, an intermediate face and a lower face.
[0022] Selon une forme de réalisation particulière, le pan supérieur de la paroi interne étagée de la rainure supérieure est incliné d’un angle compris entre 5° et 45°, de préférence entre 20° et 45°, plus préférentiellement entre 25° et 30°, et est parallèle au pan supérieur de la paroi externe étagée de la languette inférieure, et ce afin d’optimiser la résistance au désassemblage vertical et horizontal. Plus l’angle est faible, moins les moyens d’accouplement résistent au désassemblage vertical, et inversement. Ces plages de valeurs ont été étudiées pour offrir le meilleur compromis de résistance au désassemblage vertical/horizontal. According to a particular embodiment, the upper face of the stepped internal wall of the upper groove is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°, and is parallel to the upper face of the stepped outer wall of the lower tongue, in order to optimize the resistance to vertical and horizontal disassembly. The smaller the angle, the less the coupling means resist vertical disassembly, and vice versa. These ranges of values have been studied to offer the best compromise of resistance to vertical/horizontal disassembly.
[0023] Selon une alternative, le pan supérieur de la paroi externe étagée de la languette inférieure est vertical ou incliné d’un angle compris entre 1 ° et 15°, de préférence entre 5° et 10°, vers l’intérieur du panneau en s’éloignant de la face inférieure du panneau, et ce afin de faciliter l’assemblage des moyens d’accouplement, notamment lors de la mise en contact de la languette inférieure et de la rainure supérieure afin d’amorcer plus facilement le mouvement de rotation selon un axe parallèle aux bords des panneaux. [0023]According to an alternative, the upper face of the stepped outer wall of the lower tab is vertical or inclined at an angle of between 1° and 15°, preferably between 5° and 10°, towards the inside of the panel. moving away from the underside of the panel, in order to facilitate the assembly of the means coupling, in particular when bringing the lower tongue and the upper groove into contact in order to more easily initiate the rotational movement along an axis parallel to the edges of the panels.
[0024] Dans cette configuration, l’encombrement de la languette inférieure est également limité ce qui permet de réduire la quantité de copeaux générés lors de l’usinage des moyens d’assemblage. [0024] In this configuration, the size of the lower tongue is also limited, which makes it possible to reduce the quantity of chips generated during the machining of the assembly means.
[0025] De façon préférentielle, le pan supérieur de la paroi interne étagée de la rainure supérieure est vertical ou incliné d’un angle compris entre 1 ° et 15°, de préférence entre 5° et 10°, vers l’intérieur du panneau en s’éloignant de la face supérieure du panneau, et plus préférentiellement parallèle au pan supérieur de la paroi externe étagée de la languette inférieure, et ce afin de limiter également l’encombrement de la rainure supérieure. Preferably, the upper face of the stepped internal wall of the upper groove is vertical or inclined at an angle of between 1° and 15°, preferably between 5° and 10°, towards the inside of the panel. moving away from the upper face of the panel, and more preferably parallel to the upper face of the stepped outer wall of the lower tongue, in order also to limit the size of the upper groove.
[0026] De préférence, le pan intermédiaire de la paroi interne étagée de la rainure supérieure et plus incliné que le pan supérieur et le pan inférieur, et est incliné d’un angle compris entre 45° et 90°, de préférence 60°vers l’extérieur du panneau en s’éloignant de la face supérieure du panneau, et est parallèle au pan intermédiaire de la paroi externe étagée de la languette inférieure. Ces caractéristiques permettent d’augmenter la résistance au désassemblage vertical. [0026] Preferably, the intermediate face of the stepped internal wall of the upper groove is more inclined than the upper face and the lower face, and is inclined at an angle of between 45° and 90°, preferably 60° towards the outside of the panel away from the upper face of the panel, and is parallel to the intermediate face of the stepped outer wall of the lower tab. These characteristics increase the resistance to vertical disassembly.
[0027] Avantageusement, le pan intermédiaire de la paroi externe étagée de la languette inférieure et le pan intermédiaire de la paroi interne étagée de la rainure supérieure mesurent entre 0,3 et 2 mm, préférentiellement entre 0,4 et 1 , 5 mm, ceci afin d’obtenir une meilleure résistance au déclipsage vertical du système. Advantageously, the intermediate face of the stepped outer wall of the lower tongue and the intermediate face of the stepped inner wall of the upper groove measure between 0.3 and 2 mm, preferably between 0.4 and 1.5 mm, this in order to obtain a better resistance to the vertical unclipping of the system.
[0028] Avantageusement, le pan inférieur de la paroi interne étagée de la rainure supérieure est parallèle ou moins incliné vers l’extérieur du panneau en s’éloignant de la face supérieure du panneau que le pan inférieur de la paroi externe étagée de la languette inférieure, et est incliné d’un angle compris entre 5° et 45°, de préférence entre 20° et 45°, et plus préférentiellement entre 25° et 30°. [0028] Advantageously, the lower face of the stepped internal wall of the upper groove is parallel or less inclined towards the outside of the panel, moving away from the upper face of the panel, than the lower face of the stepped outer wall of the tongue. lower, and is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, and more preferably between 25° and 30°.
[0029] Ces caractéristiques permettent d’optimiser la résistance au désassemblage vertical/horizontal. Plus l’angle est faible, moins les moyens d’accouplement résistent au désassemblage vertical, et inversement. Ces plages de valeurs offrent le meilleur compromis de résistance au désassemblage vertical/horizontal. [0030] Afin de faciliter l’insertion de la languette inférieure dans la rainure supérieure, le pan inférieur de la paroi interne étagée de la rainure supérieure est moins incliné que le pan inférieur de la paroi externe étagée de la languette inférieure. These characteristics make it possible to optimize the resistance to vertical/horizontal disassembly. The lower the angle, the less the coupling means resist vertical disassembly, and vice versa. These ranges of values offer the best compromise of resistance to vertical/horizontal disassembly. [0030] In order to facilitate insertion of the lower tongue into the upper groove, the lower face of the stepped inner wall of the upper groove is less inclined than the lower face of the stepped outer wall of the lower tongue.
[0031] De manière réciproque, le pan inférieur de la paroi externe étagée de la languette inférieure est parallèle ou plus incliné que le pan inférieur de la paroi interne étagée de la rainure supérieure, et est aussi incliné d’un angle compris entre 5° et 45°, de préférence entre 20° et 45°, plus préférentiellement entre 25° et 30°. [0031] Conversely, the lower face of the stepped outer wall of the lower tongue is parallel to or more inclined than the lower face of the stepped inner wall of the upper groove, and is also inclined at an angle between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°.
[0032] La paroi interne de la languette inférieure est inclinée selon un angle compris entre 5° et 45°, de préférence entre 20° et 45°, plus préférentiellement entre 25° et 30°, et est parallèle à la paroi externe de la rainure supérieure, et ceci pour optimiser la résistance au désassemblage vertical/horizontal. Plus l’angle est faible, moins les moyens d’accouplement résistent au désassemblage vertical, et inversement. Ces plages de valeurs offrent le meilleur compromis de résistance au désassemblage vertical/horizontal. [0032] The inner wall of the lower tongue is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°, and is parallel to the outer wall of the upper groove, and this to optimize the resistance to vertical/horizontal disassembly. The smaller the angle, the less the coupling means resist vertical disassembly, and vice versa. These ranges of values offer the best compromise of resistance to vertical/horizontal disassembly.
[0033] Dans une forme de réalisation préférée, le pan supérieur de la paroi externe étagée de la languette inférieure est parallèle à la paroi interne de la languette inférieure. Selon une autre caractéristique, le pan supérieur de la paroi externe de la languette supérieure est vertical ou incliné selon un angle compris entre 1° et 10°, de préférence 5°, et est parallèle au pan supérieur de la paroi interne de la rainure inférieure. In a preferred embodiment, the upper face of the stepped outer wall of the lower tongue is parallel to the inner wall of the lower tongue. According to another characteristic, the upper face of the outer wall of the upper tongue is vertical or inclined at an angle of between 1° and 10°, preferably 5°, and is parallel to the upper face of the inner wall of the lower groove. .
[0034] Le pan inférieur de la paroi externe de la languette supérieure est, quant à lui, incliné selon un angle compris entre 45° et 80°, de préférence entre 55° et 70°, et est parallèle au pan inférieur de la paroi interne de la rainure inférieure. [0034] The lower face of the outer wall of the upper tab is, for its part, inclined at an angle of between 45° and 80°, preferably between 55° and 70°, and is parallel to the lower face of the wall internal of the lower groove.
Brève description des dessins Brief description of the drawings
[0035] D’autres caractéristiques et avantages de l’invention ressortiront clairement de la description qui en est réalisée ci-après, à titre indicatif et nullement limitatif, en référence aux figures annexées dans lesquelles : Other characteristics and advantages of the invention will emerge clearly from the description which is made of it below, by way of indication and in no way limiting, with reference to the appended figures in which:
[0036] [Fig. 1] est une coupe transversale des moyens d’accouplement à assemblage par rotation dans une position assemblée. [0036] [Fig. 1] is a cross-section of the twist-fit coupling means in an assembled position.
[0037] [Fig. 2] illustre les moyens d’accouplement supérieurs à assemblage par rotation. [0038] [Fig. 3] illustre les moyens d’accouplement inférieurs à assemblage par rotation. [0037] [Fig. 2] illustrates the twist-to-fit upper coupling means. [0038] [Fig. 3] illustrates the twist-fit lower coupling means.
[0039] [Fig. 4] illustre la cinématique d’assemblage par rotation des moyens d’accouplement supérieurs et inférieurs. [0039] [Fig. 4] illustrates the assembly kinematics by rotation of the upper and lower coupling means.
[0040] [Fig. 5] illustre le désassemblage vertical des moyens d’accouplement inférieurs et supérieurs. [0040] [Fig. 5] illustrates the vertical disassembly of the lower and upper coupling means.
[0041] [Fig. 6] illustre le désassemblage horizontal des moyens d’accouplement inférieurs et supérieurs. [0041] [Fig. 6] illustrates the horizontal disassembly of the lower and upper coupling means.
[0042] [Fig. 7] est une représentation schématique de deux panneaux selon l’invention, avec deux bords opposés à assemblage incliné par rotation autour d’un axe parallèle audits bords, et deux bords opposés à assemblage vertical. [0042] [Fig. 7] is a schematic representation of two panels according to the invention, with two opposite edges assembled at an angle by rotation about an axis parallel to said edges, and two opposite edges assembled vertically.
[0043] [Fig. 8] est une vue partielle en coupe transversale d’une forme de réalisation particulière des bords à assemblage vertical de deux panneaux en cours d’assemblage. [0043] [Fig. 8] is a partial cross-sectional view of a particular embodiment of the vertically joined edges of two panels being joined.
[0044] [Fig. 9] est une vue partielle en coupe transversale similaire à celle de la figure 8, les deux panneaux étant assemblés. [0044] [Fig. 9] is a partial cross-sectional view similar to that of Figure 8, the two panels being assembled.
[0045] [Fig. 10] illustre une forme alternative de réalisation des moyens d’accouplement inférieurs à assemblage par rotation. [0045] [Fig. 10] illustrates an alternative embodiment of the twist-fit lower coupling means.
[0046] [Fig. 11] illustre une seconde forme alternative de réalisation des moyens d’accouplement inférieurs à assemblage par rotation. [Fig.12] est une coupe transversale d’une forme de réalisation alternative et compacte des moyens d’accouplement à assemblage par rotation dans une position assemblée. [0046] [Fig. 11] illustrates a second alternative embodiment of the twist-fit lower coupling means. [Fig.12] is a cross-section of an alternate, compact embodiment of the twist-fit coupling means in an assembled position.
[0047] [Fig.13] est une coupe transversale d’une forme de réalisation similaire à celle de la figure 12 des moyens d’accouplement à assemblage par rotation dans une position assemblée. [0047] [Fig.13] is a cross-section of an embodiment similar to that of Fig. 12 of the twist-fit coupling means in an assembled position.
Description détaillée de l’invention Detailed description of the invention
[0048] En référence aux figures 1 à 9, l’invention concerne un panneau (1 ) ayant une forme de lame ou de dalle pour la réalisation d’un revêtement de sol ou de mur, par exemple destiné à une pose libre. [0049] Le panneau (1) selon l’invention présente au moins un premier côté comprenant des moyens d’accouplement supérieurs (2a) et un deuxième côté, parallèle et opposé comprenant des moyens d’accouplement inférieurs (2b) destinés à s’accoupler l’un avec l’autre selon une cinématique par rotation autour d’un axe parallèle auxdits côtés. [0048] Referring to Figures 1 to 9, the invention relates to a panel (1) having the shape of a blade or slab for the production of a floor or wall covering, for example intended for freestanding. The panel (1) according to the invention has at least a first side comprising upper coupling means (2a) and a second, parallel and opposite side comprising lower coupling means (2b) intended to coupling with each other according to a kinematics by rotation around an axis parallel to said sides.
[0050] Le panneau (1) comprend par exemple deux autres côtés, adjacents au premier et deuxième côtés, parallèles entre eux et opposés, et comprenant des moyens d’accouplement complémentaires mâles (6) et femelles (7) destinés à s’accoupler selon une cinématique verticale, voir figures 7 à 9. The panel (1) comprises for example two other sides, adjacent to the first and second sides, parallel to each other and opposite, and comprising complementary male (6) and female (7) coupling means intended to couple according to a vertical kinematics, see figures 7 to 9.
[0051] Le panneau (1) selon l’invention est avantageux en ce qu’il présente une résistance au désassemblage horizontal optimale, c’est-à-dire par exemple supérieure à environ 500N/10 cm, lui permettant notamment de résister aux tests de la chaise à roulettes selon la norme ISO 4918 ou NF EN 425. The panel (1) according to the invention is advantageous in that it has an optimal resistance to horizontal disassembly, that is to say for example greater than approximately 500N/10 cm, allowing it in particular to resist tests of the chair on casters according to the ISO 4918 or NF EN 425 standard.
[0052] Le panneau (1) de l’invention est réalisé, de préférence, dans une matière plastique, tels que du polychlorure de vinyle, par exemple plastifié et rigide, et comportant éventuellement une charge minérale. Toutefois, il est bien évident que le panneau (1 ) peut être obtenu dans toute matière plastique appropriée. The panel (1) of the invention is preferably made of a plastic material, such as polyvinyl chloride, for example plasticized and rigid, and optionally comprising a mineral filler. However, it is obvious that the panel (1) can be obtained in any suitable plastic material.
[0053] De préférence, le panneau (1) présente un noyau lié à une couche décorative constituée d’un film décor lié à une couche de surface transparente. Le noyau peut être monocouche ou multicouche, et est réalisé par exemple à partir de matière plastique tel que du polychlorure de vinyle, du polypropylène, du polyuréthane, du polyuréthane thermoplastique, du polyéthylène, du polyéthylène téréphtalate, ou toute autre matière plastique appropriée, et comprenant éventuellement des charges sous forme de fibres, copeaux, poussières ou sciures de bois et/ou des charges minérales, par exemple craie, chaux, talc, et un ou plusieurs plastifiants afin de définir la rigidité du noyau. Preferably, the panel (1) has a core bonded to a decorative layer consisting of a decorative film bonded to a transparent surface layer. The core can be monolayer or multilayer, and is made for example from plastic material such as polyvinyl chloride, polypropylene, polyurethane, thermoplastic polyurethane, polyethylene, polyethylene terephthalate, or any other suitable plastic material, and optionally comprising fillers in the form of fibres, shavings, dust or sawdust and/or mineral fillers, for example chalk, lime, talc, and one or more plasticizers in order to define the rigidity of the core.
[0054] Le noyau, ou une couche du noyau dans le cas d’un noyau multicouche, peut éventuellement être à base d’urée formol ou de mélamine formol et de bois, par exemple des couches de fibres de densité moyenne (MDF) ou de fibres de densité Haute (HDF). Chaque couche peut également être une couche de bois stratifié, de bois composite (WPC « wood plastic composite » en langue anglaise). [0055] Chaque couche peut être compacte ou moussée, à titre d’exemple, le noyau peut être réalisé avec une couche moussée en polychlorure de vinyle rigide intercalée entre deux couches de polychlorure de vinyle rigides et compactes. The core, or a layer of the core in the case of a multilayer core, may optionally be based on urea formaldehyde or melamine formaldehyde and wood, for example layers of medium density fibers (MDF) or high density fiber (HDF). Each layer can also be a layer of laminated wood, wood composite (WPC “wood plastic composite” in English). Each layer can be compact or foamed, for example, the core can be made with a foamed layer of rigid polyvinyl chloride sandwiched between two layers of rigid and compact polyvinyl chloride.
[0056] Comme indiqué, l’assemblage de ce type de panneau (1 ) se fait de manière inclinée, par exemple selon un angle compris entre 10° et 50°, et selon une cinématique par rotation sur un premier bord autour d’un axe parallèle audit bord, et selon cinématique verticale sur un second bord adjacent. En particulier, lors de la pose de ce type de panneau (1), le poseur pose une première ligne de panneaux (1), en les assemblant côte à côte selon une cinématique d’assemblage verticale. Ensuite, le poseur débute une seconde ligne de panneaux (1 ) par l’assemblage d’un premier panneau (1 ), selon une cinématique inclinée par rapport aux panneaux (1 ) de la ligne précédente. Les panneaux (1 ) suivants de la seconde ligne sont assemblés selon une cinématique inclinée par rapport aux panneaux (1) de la ligne précédente et, par un mouvement de pivotement du panneau (1 ) en direction du sol ou mur, le panneau (1 ) est assemblé au panneau (1 ) adjacent selon une cinématique verticale. As indicated, the assembly of this type of panel (1) is done in an inclined manner, for example at an angle between 10° and 50°, and according to a kinematics by rotation on a first edge around a axis parallel to said edge, and according to vertical kinematics on a second adjacent edge. In particular, when laying this type of panel (1), the installer lays a first line of panels (1), assembling them side by side according to a vertical assembly kinematics. Then, the installer begins a second line of panels (1) by assembling a first panel (1), according to an inclined kinematics with respect to the panels (1) of the previous line. The following panels (1) of the second line are assembled according to an inclined kinematics with respect to the panels (1) of the previous line and, by a pivoting movement of the panel (1) in the direction of the floor or wall, the panel (1 ) is assembled to the adjacent panel (1) according to a vertical kinematics.
[0057] À cet effet et en référence à la figure 2, les moyens d’accouplement supérieurs (2a) comprennent, quant à eux et de manière complémentaire, au moins une rainure supérieure (Rs) ménagée depuis une face inférieure du panneau (1 ), s’étendant parallèlement et le long du deuxième côté de sorte à définir une languette supérieure (Ls) s’étendant à l’extrémité du bord du panneau (1 ) vers la face inférieure dudit panneau (1 ). [0057] To this end and with reference to Figure 2, the upper coupling means (2a) comprise, for their part and in a complementary manner, at least one upper groove (Rs) formed from an underside of the panel (1 ), extending parallel and along the second side so as to define an upper tongue (Ls) extending at the end of the edge of the panel (1) towards the underside of said panel (1).
[0058] En référence à la figure 3, les moyens d’accouplement inférieurs (2b) comprennent au moins une rainure inférieure (Ri) ménagée depuis une face supérieure du panneau (1 ), et s’étendant parallèlement et le long du premier côté de sorte à définir une languette inférieure (Li) s’étendant à l’extrémité du bord du panneau (1 ) vers la face supérieure du panneau (1 ). [0058] Referring to Figure 3, the lower coupling means (2b) comprise at least one lower groove (Ri) formed from an upper face of the panel (1), and extending parallel and along the first side so as to define a lower tongue (Li) extending at the end of the edge of the panel (1) towards the upper face of the panel (1).
[0059] Pour réaliser l’assemblage en tant que tel, les moyens d’accouplement supérieurs (2a) et inférieurs (2b) sont complémentaires de sorte que la languette supérieure (Ls) et la rainure supérieure (Rs) d’un premier côté du panneau (1 ) sont destinés à s’engager avec la rainure inférieure (Ri) et la languette inférieure (Li) d’un deuxième côté d’un panneau (1) adjacent, notamment selon la cinématique d’assemblage par rotation autour d’un axe parallèle auxdits côtés. To achieve the assembly as such, the upper (2a) and lower (2b) coupling means are complementary so that the upper tongue (Ls) and the upper groove (Rs) on a first side of the panel (1) are intended to engage with the lower groove (Ri) and the lower tongue (Li) of a second side of an adjacent panel (1), in particular according to the assembly kinematics by rotation about an axis parallel to said sides.
[0060] En référence aux figures 2 et 3, la languette inférieure (Li) présente des parois interne (F) et externe inclinées par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face inférieure du panneau (1 ), et la rainure supérieure (Rs) présente des parois externe (F’) et interne inclinées par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face supérieure du panneau (1 ). [0060] With reference to Figures 2 and 3, the lower tongue (Li) has inner (F) and outer walls inclined with respect to a vertical plane towards the outside of the panel (1) away from the lower face of the panel (1), and the upper groove (Rs) has outer (F') and inner walls inclined relative to a vertical plane towards the outside of the panel (1) away from the upper face of the panel ( 1 ).
[0061] Notamment, la paroi interne (F) de la languette inférieure (Li) est inclinée selon un angle compris entre 5° et 45°, de préférence entre 20° et 45°, et préférentiellement entre 5° et 30°. In particular, the internal wall (F) of the lower tab (Li) is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, and preferably between 5° and 30°.
[0062] La paroi externe de la languette inférieure (Li) présente des moyens d’encliquetage (4) avec la paroi interne de la rainure supérieure (Rs), lesquelles sont par exemple étagées de sorte que l’extrémité libre de la languette inférieure (Li) et le fond de la rainure supérieure (Rs) soient élargies pour former lesdits moyens d’encliquetage (4). [0062] The outer wall of the lower tongue (Li) has snap-fastening means (4) with the inner wall of the upper groove (Rs), which are for example stepped so that the free end of the lower tongue (Li) and the bottom of the upper groove (Rs) are widened to form said latching means (4).
[0063] La paroi externe étagée de la languette inférieure (Li) et la paroi interne étagée de la rainure supérieure (Rs) comprennent chacune un pan supérieur (A, A’) du côté de la face supérieure du panneau (1 ), un pan intermédiaire (B, B’) et un pan inférieur (C, C’). The stepped outer wall of the lower tongue (Li) and the stepped inner wall of the upper groove (Rs) each comprise an upper face (A, A') on the side of the upper face of the panel (1), a intermediate pan (B, B') and a lower pan (C, C').
[0064] Le pan supérieur (A’) de la paroi interne étagée de la rainure supérieure (Rs) est incliné d’un angle compris entre 5° et 45°, de préférence entre 20° et 45°, et plus préférentiellement entre 25° et 30°, et est parallèle au pan supérieur (A) de la paroi externe étagée de la languette inférieure (Li), pour optimiser la résistance au désassemblage vertical/horizontal des moyens d’accouplement inférieurs (2b) et supérieurs. The upper face (A') of the stepped internal wall of the upper groove (Rs) is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, and more preferably between 25° and 45°. ° and 30°, and is parallel to the upper face (A) of the stepped outer wall of the lower tongue (Li), to optimize resistance to vertical/horizontal disassembly of the lower (2b) and upper coupling means.
[0065] En références aux figures 10 et 11 et selon deux formes alternatives de réalisation des moyens d’accouplement inférieurs à assemblage par rotation, le pan supérieur (A) de la paroi externe étagée de la languette inférieure (Li) est vertical ou incliné d’un angle compris entre 1 ° et 15°, de préférence entre 5° et 10°, vers l’intérieur du panneau (1 ) en s’éloignant de la face inférieure du panneau (1 ), et ce afin de faciliter l’assemblage des moyens d’accouplement (2a, 2b), notamment lors de la mise en contact de la languette inférieure (Li) et de la rainure supérieure (Rs) afin d’amorcer plus facilement le mouvement de rotation selon un axe parallèle aux bords des panneaux (1). With reference to Figures 10 and 11 and according to two alternative embodiments of the lower coupling means to be assembled by rotation, the upper face (A) of the stepped outer wall of the lower tongue (Li) is vertical or inclined at an angle of between 1° and 15°, preferably between 5° and 10°, towards the inside of the panel (1) away from the underside of the panel (1), in order to facilitate the assembly of the coupling means (2a, 2b), in particular when bringing the lower tongue (Li) and the upper groove (Rs) into contact in order to more easily initiate the rotational movement along an axis parallel to the edges of the panels (1).
[0066] Dans cette configuration, l’encombrement de la languette inférieure (Li) est également limité ce qui permet de réduire la quantité de copeaux générés lors de l’usinage des moyens d’assemblage. En effet plus les moyens d’assemblage s’étendent selon un axe parallèle au sol et perpendiculaire aux bords des panneaux, plus leur usinage génère une quantité importante de copeaux. Cette solution permet donc d’offrir un compromis entre la facilité de mise en œuvre, la résistance au désassemblage et l’encombrement des moyens d’assemblage. In this configuration, the size of the lower tab (Li) is also limited, which makes it possible to reduce the quantity of chips generated during the machining of the assembly means. In fact, the more the assembly means extend along an axis parallel to the ground and perpendicular to the edges of the panels, the more their machining generates a large quantity of shavings. This solution therefore makes it possible to offer a compromise between ease of implementation, resistance to disassembly and the size of the assembly means.
[0067] De façon préférentielle, le pan supérieur (A’) de la paroi interne étagée de la rainure supérieure est vertical ou incliné d’un angle compris entre 1 ° et 15°, de préférence entre 5° et 10°, vers l’intérieur du panneau (1 ) en s’éloignant de la face supérieure du panneau (1 ), et plus préférentiellement parallèle au pan supérieur (A) de la paroi externe étagée de la languette inférieure (Li), et ce afin de limiter également l’encombrement de la rainure supérieure (Rs). Preferably, the upper face (A') of the stepped internal wall of the upper groove is vertical or inclined at an angle of between 1° and 15°, preferably between 5° and 10°, towards the inside the panel (1) away from the upper face of the panel (1), and more preferably parallel to the upper face (A) of the stepped outer wall of the lower tongue (Li), in order to also limit the size of the upper groove (Rs).
[0068] Le pan intermédiaire (B’) de la paroi interne étagée de la rainure supérieure (Rs) est plus incliné que le pan supérieur (A’) et le pan inférieur (C’), et est incliné un angle compris entre 45° et 90, de préférence de 60°, et est parallèle au pan intermédiaire (B) de la paroi externe étagée de la languette inférieure (Li). The intermediate face (B') of the stepped internal wall of the upper groove (Rs) is more inclined than the upper face (A') and the lower face (C'), and is inclined at an angle between 45 ° and 90, preferably 60°, and is parallel to the intermediate face (B) of the stepped outer wall of the lower tab (Li).
[0069] Avantageusement, le pan intermédiaire (B) de la paroi externe étagée de la languette inférieure et le pan intermédiaire (B’) de la paroi interne étagée de la rainure supérieure mesurent entre 0,3 et 2 mm, préférentiellement entre 0,4 et 1 , 5 mm ceci afin d’obtenir une meilleure résistance au déclipsage vertical du système. Advantageously, the intermediate face (B) of the stepped outer wall of the lower tongue and the intermediate face (B') of the stepped inner wall of the upper groove measure between 0.3 and 2 mm, preferably between 0. 4 and 1.5 mm in order to obtain better resistance to vertical unclipping of the system.
[0070] Le pan inférieur (C’) de la paroi interne étagée de la rainure supérieure (Rs) est parallèle, ou moins incliné pour faciliter l’engagement de la languette inférieure (Li), que le pan inférieur (C) de la paroi externe étagée de la languette inférieure (Li), et est incliné d’un angle compris entre 5° et 45, de préférence entre 20° et 45°, et plus préférentiellement entre 25° et 30°, pour optimiser la résistance au désassemblage vertical/horizontal. The lower face (C') of the stepped internal wall of the upper groove (Rs) is parallel, or less inclined to facilitate engagement of the lower tab (Li), than the lower face (C) of the stepped outer wall of the lower tongue (Li), and is inclined at an angle between 5° and 45°, preferably between 20° and 45°, and more preferably between 25° and 30°, to optimize resistance to disassembly vertical/horizontal.
[0071] De manière complémentaire, le pan inférieur (C) de la paroi externe étagée de la languette inférieure (Li) est, quant à lui, parallèle ou plus incliné que le pan inférieur (C’) de la paroi interne étagée de la rainure supérieure (Rs), et est incliné d’un angle compris entre 5° 45°, de préférence entre 20° et 45°, et plus préférentiellement entre 25° et 30°. [0071] In a complementary manner, the lower face (C) of the stepped outer wall of the lower tongue (Li) is, for its part, parallel or more inclined than the face. bottom (C') of the stepped internal wall of the upper groove (Rs), and is inclined at an angle comprised between 5° and 45°, preferably between 20° and 45°, and more preferably between 25° and 30° .
[0072] De préférence la pan supérieur (A) de la languette inférieure (Li) est moins incliné que le pan inférieur (C) pour faciliter l’usinage. [0072] Preferably the upper face (A) of the lower tab (Li) is less inclined than the lower face (C) to facilitate machining.
[0073] En référence à la figure 1 , la languette supérieure (Ls) présente, au niveau de son extrémité libre, une lèvre (5) en saillie latéralement et vers l’extérieur du panneau (1 ) de sorte à définir une paroi externe comprenant un pan supérieur (E’) du côté de la face supérieure du panneau (1 ), vertical ou incliné par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face supérieure du panneau (1 ), et un pan inférieur (G’) incliné d’un angle plus important que le pan supérieur (E’) par rapport à un plan vertical et vers l’extérieur du panneau (1 ) en s’éloignant de la face supérieure du panneau (1 ). [0073] Referring to Figure 1, the upper tab (Ls) has, at its free end, a lip (5) projecting laterally and outwardly from the panel (1) so as to define an outer wall comprising an upper face (E') on the side of the upper face of the panel (1), vertical or inclined with respect to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1 ), and a lower face (G') inclined at a greater angle than the upper face (E') with respect to a vertical plane and towards the outside of the panel (1) away from the upper face of the panel (1).
[0074] De manière complémentaire, la rainure inférieure (Ri) présente un évidement (5a) latéral vers l’intérieur du panneau (1) de sorte à définir une paroi interne comprenant un pan supérieur (E) du côté de la face supérieure du panneau (1 ), vertical ou incliné par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face inférieure du panneau (1), et un pan inférieur (G) incliné d’un angle plus important que le pan supérieur (E) par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face inférieure du panneau (1 ). [0074] In a complementary manner, the lower groove (Ri) has a lateral recess (5a) towards the inside of the panel (1) so as to define an internal wall comprising an upper face (E) on the side of the upper face of the panel (1), vertical or inclined with respect to a vertical plane towards the outside of the panel (1) away from the underside of the panel (1), and a lower face (G) inclined at a greater angle important that the upper face (E) with respect to a vertical plane towards the outside of the panel (1) away from the underside of the panel (1).
[0075] Par exemple, le pan supérieur (E’) de la paroi externe de la languette supérieure (Ls) est vertical ou incliné selon un angle compris entre 1 ° et 10°, de préférence 5°, et est parallèle au pan supérieur (E) de la paroi interne de la rainure inférieure. For example, the upper face (E') of the outer wall of the upper tongue (Ls) is vertical or inclined at an angle of between 1° and 10°, preferably 5°, and is parallel to the upper face. (E) Inner wall of lower groove.
[0076] Le pan inférieur (G’) de la paroi externe de la languette supérieure (Ls) est, quant à lui, incliné selon un angle compris entre 45° et 80°, de préférence entre 55° et 70°, et est parallèle au pan inférieur (G) de la paroi interne de la rainure inférieure (Ri). The lower face (G') of the outer wall of the upper tongue (Ls) is, for its part, inclined at an angle of between 45° and 80°, preferably between 55° and 70°, and is parallel to the lower face (G) of the inner wall of the lower groove (Ri).
[0077] De préférence, la languette supérieure (Ls) présente une largeur plus importante, de 0,2 mm ou moins, par rapport à celle de la rainure inférieure (Ri), pour obtenir un assemblage en force. Après assemblage, il subsiste néanmoins un jeu entre les pans supérieurs (A, A’) des parois étagées de la languette inférieure (Li) et de la rainure supérieure (Rs) afin de permettre l’assemblage. Preferably, the upper tongue (Ls) has a greater width, of 0.2 mm or less, compared to that of the lower groove (Ri), to obtain an assembly in force. After assembly, however, there remains a clearance between the upper faces (A, A') of the stepped walls of the lower tongue (Li) and of the upper groove (Rs) in order to allow assembly.
[0078] Comme illustré à la figure 4, la cinématique d’assemblage se fait avec une approche inclinée, et selon une cinématique par rotation autour d’un axe parallèle aux côtés assemblés. En particulier, la languette supérieure (Ls) comprend par exemple une paroi d’extrémité présentant une portion courbée (8) destinée à rouler ou pivoter dans le fond de la rainure inférieure (Ri) lors de l’assemblage. Lors de l’assemblage, le pan supérieur (A) de la paroi externe étagée de la languette inférieure (Li) coulisse contre le pan inférieur (C’) de la paroi interne étagée de la rainure supérieure (Rs). As illustrated in Figure 4, the assembly kinematics is done with an inclined approach, and according to a kinematics by rotation around an axis parallel to the assembled sides. In particular, the upper tongue (Ls) comprises for example an end wall having a curved portion (8) intended to roll or pivot in the bottom of the lower groove (Ri) during assembly. During assembly, the upper face (A) of the stepped outer wall of the lower tongue (Li) slides against the lower face (C') of the stepped inner wall of the upper groove (Rs).
[0079] Selon une autre caractéristique, la distance prise entre le bord supérieur du pan supérieur (E’) de la paroi externe de la languette supérieure (Ls) et le bord supérieur de la paroi externe (F’) de la rainure supérieure (Rs), est identique ou légèrement inférieure à la distance prise entre le même bord supérieur du pan supérieur (E’) de la paroi externe de la languette supérieure (Ls) et le bord inférieur de la paroi externe (F’) de la rainure supérieure (Rs), et ce pour assurer un meilleur verrouillage de l’ensemble après assemblage. According to another characteristic, the distance taken between the upper edge of the upper face (E') of the outer wall of the upper tongue (Ls) and the upper edge of the outer wall (F') of the upper groove ( Rs), is identical to or slightly less than the distance taken between the same upper edge of the upper face (E') of the outer wall of the upper tongue (Ls) and the lower edge of the outer wall (F') of the groove higher (Rs), and this to ensure better locking of the assembly after assembly.
[0080] Le demandeur a effectué des tests de résistance au désassemblage horizontal et vertical, ainsi que des tests en flexion avant désassemblage et des tests de la force nécessaire pour l’assemblage, dont les résultats sont compilés dans le tableau ci-après. The applicant carried out horizontal and vertical disassembly resistance tests, as well as bending tests before disassembly and tests of the force necessary for assembly, the results of which are compiled in the table below.
[0081] [Table 1]
Figure imgf000015_0001
[0081] [Table 1]
Figure imgf000015_0001
0082] Pour mesurer la flexion avant désassemblage, on assemble deux panneaux0082] To measure the bending before disassembly, two panels are assembled
(1) de 20 cm de large, lesquels sont ensuite bloqués au niveau des bords opposés à ceux assemblés. On applique alors une force verticale sur les bords assemblés et on mesure à quel déplacement vertical les moyens d’accouplement sont désassemblés. Si cette valeur est inférieure ou égale à 5 mm, on considère que les moyens d’accouplement peuvent se désassembler lorsque les panneaux (1) sont posés sur des sous-couches souples, telles que des sous-couches acoustiques par exemple, ce qui n’est pas satisfaisant. (1) 20 cm wide, which are then blocked at the edges opposite to those assembled. A vertical force is then applied to the assembled edges and the vertical displacement at which the coupling means are disassembled is measured. If this value is less than or equal to 5 mm, it is considered that the coupling means can be disassembled when the panels (1) are placed on flexible underlays, such as acoustic underlays for example, which does not is not satisfactory.
[0083] En référence aux figures 7 à 9, les bords opposés à assemblage vertical, consistent en un bord comprenant des moyens d’accouplement mâles (6) ménagés à partir d’une face inférieure du panneau (1 ), et en un bord opposé comprenant des moyens d’accouplement femelles (7) complémentaires ménagés à partir d’une face supérieure du panneau (1 ). [0083] With reference to Figures 7 to 9, the opposite edges with vertical assembly, consist of an edge comprising male coupling means (6) formed from an underside of the panel (1), and an edge opposite comprising complementary female coupling means (7) formed from an upper face of the panel (1).
[0084] En référence aux figures 8 et 9, les moyens d’accouplement mâles (6) des bords à assemblage vertical (3) comprennent une rainure mâle (6a) s’étendant le long du bord et débouchant sur la face inférieure du panneau (1 ), de manière à définir une languette mâle (6b). [0084] With reference to Figures 8 and 9, the male coupling means (6) of the vertical assembly edges (3) comprise a male groove (6a) extending along the edge and opening onto the underside of the panel (1), so as to define a male tab (6b).
[0085] De la même manière, les moyens d’accouplement femelles (7) des bords à assemblage vertical (3) comprennent une rainure femelle (7a) s’étendant le long du bord et débouchant sur la face supérieure du panneau (1 ), de manière à définir une languette femelle (7b). [0085] In the same way, the female coupling means (7) of the vertical assembly edges (3) comprise a female groove (7a) extending along the edge and opening onto the upper face of the panel (1) , so as to define a female tongue (7b).
[0086] Les languettes mâle et femelle (6b, 7b) comprennent des sections transversales sensiblement rectangulaires, et sont souples et déformables élastiquement pour permettre leur engagement dans les rainures femelle et mâle (6a, 7a) correspondantes. The male and female tabs (6b, 7b) comprise substantially rectangular cross-sections, and are flexible and elastically deformable to allow their engagement in the corresponding female and male grooves (6a, 7a).
[0087] La languette mâle (6b) présente une paroi externe (6c) inclinée par rapport à un plan vertical et vers l’extérieur du panneau (1 ), selon un angle compris entre 1 et 45°, et de préférence compris entre 5 et 15°. Une inclinaison de la paroi externe (6c) comprise entre 5 et 15° permet d’obtenir un bon compromis entre la facilité d’assemblage des panneaux (1 ) et la résistance au désassemblage horizontal des moyens d’accouplement. Ainsi, lors de l’engagement de la languette mâle (6b) dans la rainure femelle (7a), selon une cinématique verticale, la languette mâle (6b) vient s’appuyer contre la partie supérieure de la languette femelle (7b). En conséquence, pendant l’opération de pose, le poseur voit la rainure femelle (7a) et peut donc facilement positionner la paroi externe (6c) de la languette mâle (6b) au droit de la rainure femelle (7a) pour commencer l’assemblage. Ceci facilite très nettement l’opération d’assemblage vertical pendant le mouvement de rotation. Par ailleurs, et d’une manière avantageuse, étant donné l’inclinaison vers l’extérieur de la paroi externe (6c) de la languette mâle (6b) et l’inclinaison complémentaire de la paroi interne de la rainure femelle (7a), lors du pivotement, les deux panneaux (1 ) se rapprochent l’un de l’autre. Ceci facilite davantage l’opération de pose, et les contraintes d’usinage pour avoir un contact parfait en surface des panneaux (1 ) sont aussi plus faciles à respecter. The male tab (6b) has an outer wall (6c) inclined with respect to a vertical plane and towards the outside of the panel (1), at an angle of between 1 and 45°, and preferably of between 5 and 15°. An inclination of the outer wall (6c) of between 5 and 15° makes it possible to obtain a good compromise between the ease of assembly of the panels (1) and the resistance to horizontal disassembly of the coupling means. Thus, during the engagement of the male tongue (6b) in the female groove (7a), according to a vertical kinematics, the male tongue (6b) comes to rest against the upper part of the female tongue (7b). Consequently, during the installation operation, the installer sees the female groove (7a) and can therefore easily position the outer wall (6c) of the male tongue (6b) in line with the female groove (7a) to begin assembly. This greatly facilitates the vertical assembly operation during the rotary movement. Furthermore, and advantageously, given the outward inclination of the outer wall (6c) of the male tongue (6b) and the complementary inclination of the inner wall of the female groove (7a), during pivoting, the two panels (1) approach each other. This further facilitates the laying operation, and the machining constraints to have perfect contact on the surface of the panels (1) are also easier to comply with.
[0088] Selon une forme de réalisation particulière, la languette mâle (6b) présente une paroi interne inclinée par rapport à un plan vertical et vers l’extérieur ou l’intérieur du panneau (1 ). According to a particular embodiment, the male tongue (6b) has an internal wall inclined with respect to a vertical plane and towards the outside or the inside of the panel (1).
[0089] De préférence, et pour faciliter l’assemblage de deux panneaux (1 ) adjacents, la languette mâle (6b) présente une paroi interne inclinée vers l’extérieur du panneau (1 ), selon un angle compris entre 1 et 45°, et de préférence compris entre 5 et 15°. Une inclinaison de la paroi interne de la languette mâle (6b) comprise entre 5 et 15° permet également d’obtenir un bon compromis entre la facilité d’assemblage des panneaux (1) et la résistance au désassemblage horizontal des moyens d’accouplement. De façon plus préférentielle, la languette mâle (6b) présente une paroi interne inclinée selon le même angle que la paroi externe (6c). Cette caractéristique permet également de faciliter la fabrication, et en particulier l’usinage des moyens d’accouplement mâles (6) et femelles (7) complémentaires. [0089] Preferably, and to facilitate the assembly of two adjacent panels (1), the male tongue (6b) has an internal wall inclined towards the outside of the panel (1), at an angle between 1 and 45° , and preferably between 5 and 15°. An inclination of the internal wall of the male tab (6b) of between 5 and 15° also makes it possible to obtain a good compromise between the ease of assembly of the panels (1) and the resistance to horizontal disassembly of the coupling means. More preferably, the male tab (6b) has an inner wall inclined at the same angle as the outer wall (6c). This characteristic also makes it possible to facilitate the manufacture, and in particular the machining of the complementary male (6) and female (7) coupling means.
[0090] L’engagement de la languette mâle (6b) dans la rainure femelle (7a) permet de résister au désassemblage horizontal de deux panneaux (1) assemblés. [0090] The engagement of the male tongue (6b) in the female groove (7a) makes it possible to resist the horizontal disassembly of two assembled panels (1).
[0091] Afin de participer à la résistance au désassemblage vertical, les moyens d’accouplement mâles (6) des bords à assemblage vertical (3) comprennent un ergot (10) ou une encoche (11 ), et les moyens d’accouplement femelles (7) des bords à assemblage vertical (3) comprennent une encoche (11 ) ou un ergot (10) complémentaire formant, après assemblage de deux panneaux (1 ) adjacents, des butées d’arrêt à l’encontre d’un déplacement vertical entre deux panneaux (1 ) adjacents assemblés. [0092] De ce qui précède, plusieurs formes de réalisation sont envisageables. Par exemple, l’ergot (10) ou encoche (11 ) est ménagé(e) sur la paroi externe de la languette mâle (6b) et, de manière complémentaire, l’encoche (11 ) ou ergot (10) est ménagé(e) sur une paroi interne de la rainure femelle (7a). In order to contribute to the resistance to vertical disassembly, the male coupling means (6) of the vertically assembled edges (3) comprise a lug (10) or a notch (11), and the female coupling means (7) edges with vertical assembly (3) comprise a notch (11) or a complementary lug (10) forming, after assembly of two adjacent panels (1), stops against vertical movement between two panels (1) adjacent assembled. From the foregoing, several embodiments are possible. For example, the lug (10) or notch (11) is made on the outer wall of the male tongue (6b) and, in a complementary manner, the notch (11) or lug (10) is made ( e) on an internal wall of the female groove (7a).
[0093] Selon une autre forme de réalisation, l’ergot (10) ou encoche (11 ) est ménagé(e) sur la paroi externe de la languette femelle (7b) et, de manière complémentaire, l’encoche (11 ) ou ergot (10) est ménagé(e) sur une paroi interne de la rainure mâle (6a). According to another embodiment, the lug (10) or notch (11) is formed on the outer wall of the female tab (7b) and, in a complementary manner, the notch (11) or lug (10) is formed on an inner wall of the male groove (6a).
[0094] De préférence, ces deux formes de réalisation sont combinées de sorte que les moyens d’accouplement mâles (6) des bords à assemblage vertical (3) comprennent deux ergots (10) ou encoches (11), et les moyens d’accouplement femelles (7) des bords à assemblage vertical (3) comprennent deux encoches (11 ) ou ergots (10) complémentaires. Preferably, these two embodiments are combined so that the male coupling means (6) of the edges with vertical assembly (3) comprise two lugs (10) or notches (11), and the means of coupling females (7) of the vertical assembly edges (3) comprise two notches (11) or lugs (10) complementary.
[0095] Afin d’améliorer davantage la résistance au désassemblage vertical les rainures mâle (6a) et femelle (7a) présentent chacune une paroi externe, c’est-à-dire positionnée, non pas du côté du corps du panneau (1), mais du côté de l’extérieur du panneau (1 ), destinée à être en contact, après assemblage des deux panneaux (1 ). Pour obtenir le contact les rainures (6a, 7a) et languettes (6b, 7b) présentent des largeurs et/ou inclinaisons appropriées. A titre d’exemple, les languettes (6b, 7b) et rainures (6a, 7a) présentent des largeurs de l’ordre de 2 mm, et sont inclinés de 10° par rapport à la verticale et vers l’extérieur du panneau (1 ). In order to further improve the resistance to vertical disassembly, the male (6a) and female (7a) grooves each have an outer wall, that is to say positioned, not on the side of the body of the panel (1) , but on the side of the outside of the panel (1), intended to be in contact, after assembly of the two panels (1). To obtain contact, the grooves (6a, 7a) and tongues (6b, 7b) have suitable widths and/or inclinations. By way of example, the tongues (6b, 7b) and grooves (6a, 7a) have widths of the order of 2 mm, and are inclined by 10° with respect to the vertical and towards the outside of the panel ( 1 ).
[0096] Ainsi, la paroi externe de la rainure mâle (6a) est en contact avec la paroi externe de la rainure femelle (7a). En pratique, après assemblage ces parois en contact sont parallèles entre elles. Après assemblage, et de façon préférentielle, la languette mâle (6b) est en contact avec le fond de la rainure femelle (7a) afin d’avoir un appui vertical. Par ailleurs, après assemblage, il subsiste de préférence un jeu de quelques dixièmes de millimètres entre la paroi verticale externe de la languette femelle (7b), située sous l’encoche (11 ), avec la paroi verticale en regard de la rainure mâle (6a), située sous l’ergot (10). Cette caractéristique permet de faciliter l’assemblage. Thus, the outer wall of the male groove (6a) is in contact with the outer wall of the female groove (7a). In practice, after assembly these walls in contact are parallel to each other. After assembly, and preferably, the male tongue (6b) is in contact with the bottom of the female groove (7a) in order to have a vertical support. Furthermore, after assembly, there preferably remains a clearance of a few tenths of a millimeter between the external vertical wall of the female tongue (7b), located under the notch (11), with the vertical wall facing the male groove ( 6a), located under the lug (10). This feature makes assembly easier.
[0097] Selon une autre caractéristique de l’invention, la languette femelle (7b) comporte une partie chanfreinée (12) au niveau de la face inférieure du panneau (1 ) et formant un angle compris entre 2° et 20° par rapport à la face inférieure du panneau (1 ). Ainsi, lors de l’assemblage des deux panneaux (1 ) adjacents, la partie chanfreinée (12) autorise l’abaissement de la languette femelle (7b) pour venir, par déformation, en contact avec le sol, et procurer ainsi une réduction de l’effort d’assemblage. Pour faciliter davantage l’opération d’assemblage, la partie chanfreinée (12) de la languette femelle (7b) s’étend jusqu’au droit de l’arête supérieure interne de la languette femelle (7b). [0097] According to another characteristic of the invention, the female tongue (7b) comprises a chamfered part (12) at the level of the underside of the panel (1) and forming an angle of between 2° and 20° relative to the underside of the panel (1). Thus, when assembling the two adjacent panels (1), the chamfered part (12) allows the lowering of the female tongue (7b) to come, by deformation, into contact with the ground, and thus provide a reduction of assembly effort. To further facilitate the assembly operation, the chamfered part (12) of the female tongue (7b) extends to the right of the upper internal edge of the female tongue (7b).
[0098] Par ailleurs, la face supérieure du panneau (1 ) peut également présenter des chanfreins (13) au niveau de la languette mâle (6b) et de la rainure femelle (7a) afin de participer à l’esthétique générale des panneaux (1), après assemblage. Chaque chanfrein (13) forme un angle compris entre 2° et 20° par rapport à la face supérieure du panneau (1 ). L’interface entre les deux panneaux (1) assemblés forme ainsi une rainure en forme de V, voir figure 9. Furthermore, the upper face of the panel (1) may also have chamfers (13) at the level of the male tongue (6b) and the female groove (7a) in order to participate in the general aesthetics of the panels ( 1), after assembly. Each chamfer (13) forms an angle of between 2° and 20° with respect to the upper face of the panel (1). The interface between the two assembled panels (1) thus forms a V-shaped groove, see figure 9.
[0099] Dans une autre forme de réalisation des moyens d’accouplement supérieurs (2a) et inférieurs (2b) illustrée selon les figures 12 et 13, une forme compacte des moyens d’accouplement à assemblage par rotation selon l’invention est envisagée. In another embodiment of the upper (2a) and lower (2b) coupling means illustrated according to Figures 12 and 13, a compact form of the rotational assembly coupling means according to the invention is envisaged.
[0100] Dans cette configuration, l’encombrement de la languette inférieure (Li) et de la rainure inférieure (Ri) selon un axe « X » parallèle au sol et perpendiculaire à l’axe de rotation des panneaux pendant l’assemblage est réduit. A cet effet, la distance (A1 ) mesurée sur l’axe X entre l’extrémité de la paroi externe de la languette inférieure (Li) et la zone du pan supérieur (E) la plus proche de l’extérieur du panneau est comprise entre 3,5 et 4 mm et la distance (A2) mesurée sur l’axe X entre la zone du pan supérieur (E) la plus proche de l’extérieur du panneau et l’extrémité de l’évidement (5a) latéral de la rainure inférieure (Ri) vers l’intérieur du panneau est comprise entre 1 et 1 ,5 mm. [0100] In this configuration, the size of the lower tongue (Li) and of the lower groove (Ri) along an "X" axis parallel to the ground and perpendicular to the axis of rotation of the panels during assembly is reduced. . For this purpose, the distance (A1) measured on the X axis between the end of the outer wall of the lower tongue (Li) and the zone of the upper face (E) closest to the outside of the panel is included between 3.5 and 4 mm and the distance (A2) measured on the X axis between the zone of the upper face (E) closest to the outside of the panel and the end of the recess (5a) on the side of the lower groove (Ri) towards the inside of the panel is between 1 and 1.5 mm.
[0101] Toujours dans cette configuration, l’encombrement de la languette supérieure (Ls) et de la rainure supérieure (Rs) selon l’axe « X » parallèle au sol et perpendiculaire à l’axe de rotation des panneaux pendant l’assemblage est également réduit. [0101] Still in this configuration, the size of the upper tongue (Ls) and of the upper groove (Rs) along the "X" axis parallel to the ground and perpendicular to the axis of rotation of the panels during assembly is also reduced.
[0102] Dans ce mode de réalisation la languette supérieure (Ls) présente au niveau de son extrémité libre, une lèvre (5) en saillie latéralement vers l’extérieur du panneau (1 ), de sorte à définir une paroi externe comprenant un pan supérieur (E’) du côté de la face supérieure du panneau (1 ), vertical ou incliné par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face supérieure du panneau (1 ), un pan inférieur (G’) incliné d’un angle plus important que le pan supérieur (E’) par rapport à un plan vertical et vers l’extérieur du panneau (1 ) en s’éloignant de la face supérieure du panneau (1 ) et un pan intermédiaire (G”) incliné d’un angle moins important que le pan supérieur (E’) par rapport à un plan vertical de manière à présenter un angle compris entre 0° et 15°, préférentiellement inférieur à 5°, par rapport à la verticale. [0102] In this embodiment the upper tab (Ls) has at its free end, a lip (5) projecting laterally outwards from the panel (1), so as to define an outer wall comprising a upper (E') on the side of the upper face of the panel (1), vertical or inclined with respect to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1), a lower face (G' ) inclined at a greater angle than the upper face (E ') with respect to a vertical plane and towards the outside of the panel (1) away from the upper face of the panel (1) and an intermediate face ( G”) inclined at a smaller angle than the upper face (E') with respect to a vertical plane so as to present an angle of between 0° and 15°, preferably less than 5°, with respect to the vertical.
[0103] La distance (B1) mesurée sur l’axe X entre le point de rencontre entre la paroi externe (F’) et la portion courbée (8) et l’extrémité de la paroi interne de la rainure supérieure (Rs) la plus proche de l’intérieur du panneau est comprise entre 2 et 3mm, préférentiellement entre 2,2 et 2,6mm, et la distance (B2) mesurée sur l’axe X entre la zone du pan intermédiaire (G”) la plus proche de l’extérieur du panneau et le point de rencontre entre la paroi externe (F’) et la portion courbée (8) est comprise entre 2 et 3mm, préférentiellement entre 2,4 et 2,8mm. [0103] The distance (B1) measured on the X axis between the meeting point between the outer wall (F') and the curved portion (8) and the end of the inner wall of the upper groove (Rs) the closest to the inside of the panel is between 2 and 3mm, preferably between 2.2 and 2.6mm, and the distance (B2) measured on the X axis between the zone of the intermediate face (G”) closest from the outside of the panel and the meeting point between the outer wall (F') and the curved portion (8) is between 2 and 3 mm, preferably between 2.4 and 2.8 mm.
[0104] A titre d’exemple, le demandeur a effectué des tests de résistance au désassemblage horizontal et vertical d’un moyen d’assemblage selon les figures 12 et 13, ainsi que des tests en flexion avant désassemblage, et des tests de la force nécessaire pour l’assemblage avec un panneau présentant les proportions suivantes : A1 : 3,79mm ; A2 : 1 ,28mm ; B1 : 2,44mm ; B2 : 2,61 mm ; portion B : 0,48mm. Les résultats sont compilés dans le tableau ci-après. [0104] By way of example, the applicant carried out horizontal and vertical disassembly resistance tests of an assembly means according to FIGS. 12 and 13, as well as bending tests before disassembly, and tests of the force required for assembly with a panel having the following proportions: A1: 3.79mm; A2: 1.28mm; B1: 2.44mm; B2: 2.61mm; section B: 0.48mm. The results are compiled in the table below.
[0105] [Table 2]
Figure imgf000020_0001
Figure imgf000021_0001
[0105] [Table 2]
Figure imgf000020_0001
Figure imgf000021_0001
0106] Ce mode de réalisation permet donc de réduire l’encombrement et la quantité de copeaux générés lors de l’usinage des moyens d’assemblage, tout en maintenant une très bonne résistance au déclipsage vertical et horizontal. 0106] This embodiment therefore makes it possible to reduce the size and the quantity of chips generated during the machining of the assembly means, while maintaining very good resistance to vertical and horizontal unclipping.

Claims

Revendications Claims
[Revendications 1] Panneau (1 ) de revêtement de sol ou mur comprenant au moins un côté comprenant des moyens d’accouplement supérieurs (2a) et un côté, parallèle et opposé, comprenant des moyens d’accouplement inférieurs (2b) ; [Claims 1] Floor or wall covering panel (1) comprising at least one side comprising upper coupling means (2a) and one side, parallel and opposite, comprising lower coupling means (2b);
- les moyens d’accouplements inférieurs (2b) comprennent au moins une rainure inférieure (Ri) ménagée depuis une face supérieure du panneau (1 ), et s’étendant parallèlement et le long du côté de sorte à définir une languette inférieure (Li) s’étendant à l’extrémité du bord du panneau (1 ) vers la face supérieure dudit panneau (1 ) ; - the lower coupling means (2b) comprise at least one lower groove (Ri) formed from an upper face of the panel (1), and extending parallel and along the side so as to define a lower tongue (Li) extending at the end of the edge of the panel (1) towards the upper face of said panel (1);
- les moyens d’accouplements supérieurs (2a) comprennent au moins une rainure supérieure (Rs) ménagée depuis une face inférieure du panneau (1), et s’étendant parallèlement et le long du côté de sorte à définir une languette supérieure (Ls) s’étendant à l’extrémité du bord du panneau (1 ) vers la face inférieure dudit panneau (1). - the upper coupling means (2a) comprise at least one upper groove (Rs) formed from an underside of the panel (1), and extending parallel and along the side so as to define an upper tongue (Ls) extending at the end of the edge of the panel (1) towards the underside of said panel (1).
- les moyens d’accouplement supérieurs (2a) et inférieurs sont complémentaires de sorte que la languette supérieure (Ls) et la rainure supérieure (Rs) du panneau (1 ) sont destinées à s’engager avec la rainure inférieure (Ri) et la languette inférieure (Li) d’un panneau (1 ) adjacent selon une cinématique d’assemblage par rotation autour d’un axe parallèle aux côtés assemblés ; caractérisé en ce que : - the upper (2a) and lower coupling means are complementary so that the upper tongue (Ls) and the upper groove (Rs) of the panel (1) are intended to engage with the lower groove (Ri) and the lower tab (Li) of an adjacent panel (1) according to an assembly kinematics by rotation about an axis parallel to the assembled sides; characterized in that:
- la languette inférieure (Li) présente des parois externe (F) et interne inclinées par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face inférieure du panneau (1 ) : - the lower tab (Li) has outer (F) and inner walls inclined with respect to a vertical plane towards the outside of the panel (1) away from the underside of the panel (1):
- la rainure supérieure (Rs) présente des parois externe (F’) et interne inclinées par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face supérieure du panneau (1 ) ; - the upper groove (Rs) has external (F') and internal walls inclined relative to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1);
- la languette supérieure (Ls) présente au niveau de son extrémité libre, une lèvre (5) en saillie latéralement vers l’extérieur du panneau (1 ), de sorte à définir une paroi externe comprenant un pan supérieur (E’) du côté de la face supérieure du panneau (1), vertical ou incliné par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face supérieure du panneau (1 ), et un pan inférieur (G’) incliné d’un angle plus important que le pan supérieur (E’) par rapport à un plan vertical et vers l’extérieur du panneau (1) en s’éloignant de la face supérieure du panneau (1 ) ; - la rainure inférieure (Ri) présente un évidement (5a) latéral vers l’intérieur du panneau (1 ) de sorte à définir une paroi interne comprenant un pan supérieur (E) du côté de la face supérieure du panneau (1 ), vertical ou incliné par rapport à un plan vertical vers l’extérieur du panneau (1 ) en s’éloignant de la face inférieure du panneau (1 ), et un pan inférieur (G) incliné d’un angle plus important que le pan supérieur (E) par rapport à un plan vertical et vers l’extérieur du panneau (1 ) en s’éloignant de la face inférieure du panneau (1) ; et en ce que la paroi externe de la languette inférieure (Li) et la paroi interne de la rainure supérieure (Rs) présentent des moyens d’encliquetage (4) complémentaires. - the upper tongue (Ls) has, at its free end, a lip (5) projecting laterally outwards from the panel (1), so as to define an outer wall comprising an upper face (E') on the side of the upper face of the panel (1), vertical or inclined with respect to a vertical plane towards the outside of the panel (1) away from the upper face of the panel (1), and a lower face (G') inclined at a greater angle than the upper face (E') relative to a vertical plane and towards the outside of the panel (1) away from the upper face of the panel (1); - the lower groove (Ri) has a recess (5a) lateral towards the inside of the panel (1) so as to define an internal wall comprising an upper face (E) on the side of the upper face of the panel (1), vertical or inclined with respect to a vertical plane towards the outside of the panel (1) away from the underside of the panel (1), and a lower face (G) inclined at a greater angle than the upper face ( E) relative to a vertical plane and outwards from the panel (1) away from the underside of the panel (1); and in that the outer wall of the lower tongue (Li) and the inner wall of the upper groove (Rs) have complementary latching means (4).
[Revendications 2] Panneau (1 ) selon la revendication 1 , caractérisé en ce que la paroi externe de la languette inférieure (Li) et la paroi interne de la rainure supérieure (Rs) sont étagées, de sorte que l’extrémité libre de la languette inférieure (Li) et le fond de la rainure supérieure (Rs) sont élargies pour former les moyens d’encliquetage (4). [Claims 2] Panel (1) according to claim 1, characterized in that the outer wall of the lower tongue (Li) and the inner wall of the upper groove (Rs) are stepped, so that the free end of the lower tongue (Li) and the bottom of the upper groove (Rs) are widened to form the latching means (4).
[Revendications 3] Panneau (1 ) selon la revendication 2, caractérisé en ce que la paroi externe étagée de la languette inférieure (Li) et la paroi interne étagée de la rainure supérieure (Rs) comprennent chacune un pan supérieur (A, A’) du côté de la face supérieure du panneau (1 ), un pan intermédiaire (B, B’) et un pan inférieur (C, C’). [Claims 3] Panel (1) according to claim 2, characterized in that the stepped outer wall of the lower tongue (Li) and the stepped inner wall of the upper groove (Rs) each comprise an upper face (A, A' ) on the side of the upper face of the panel (1), an intermediate face (B, B') and a lower face (C, C').
[Revendications 4] Panneau (1 ) selon la revendication 3 caractérisé en ce que le pan supérieur (A’) de la paroi interne étagée de la rainure supérieure (Rs) est incliné d’un angle compris entre 5° et 45°, de préférence entre 20° et 45°, plus préférentiellement entre 25° et 30°, et est parallèle au pan supérieur (A) de la paroi externe étagée de la languette inférieure (Li). [Claims 4] Panel (1) according to claim 3 characterized in that the upper face (A') of the stepped internal wall of the upper groove (Rs) is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°, and is parallel to the upper face (A) of the stepped outer wall of the lower tab (Li).
[Revendications 5] Panneau (1 ) selon l’une des revendications 3 à 4 caractérisé en ce que le pan intermédiaire (B’) de la paroi interne étagée de la rainure supérieure (Rs) est plus incliné que le pan supérieur (A’) et le pan inférieur (C’), et est incliné d’un angle compris entre 45° et 90°, de préférence 60°, et est parallèle au pan intermédiaire (B) de la paroi externe étagée de la languette inférieure (Li). [Claims 5] Panel (1) according to one of Claims 3 to 4, characterized in that the intermediate face (B') of the stepped internal wall of the upper groove (Rs) is more inclined than the upper face (A' ) and the lower face (C'), and is inclined at an angle of between 45° and 90°, preferably 60°, and is parallel to the intermediate face (B) of the stepped outer wall of the lower tongue (Li ).
[Revendications 6] Panneau (1 ) selon l’une des revendications 3 à 5 caractérisé en ce que le pan inférieur (C’) de la paroi interne étagée de la rainure supérieure (Rs) est parallèle ou moins incliné que le pan inférieur (C) de la paroi externe étagée de la languette inférieure (Li), et est incliné d’un angle compris 5°et 45°, de préférence entre 20° et 45°, plus préférentiellement entre 25° et 30°. [Claims 6] Panel (1) according to one of Claims 3 to 5, characterized in that the lower face (C') of the stepped internal wall of the upper groove (Rs) is parallel or less inclined than the lower face ( C) stepped outer wall of the lower tongue (Li), and is inclined at an angle between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°.
[Revendications 7] Panneau (1 ) selon l’une des revendications 3 à 6 caractérisé en ce que le pan inférieur (C) de la paroi externe étagée de la languette inférieure (Li) est parallèle ou plus incliné que le pan inférieur (C’) de la paroi interne étagée de la rainure supérieure (Rs), et est incliné d’un angle compris 5°et 45°, de préférence entre 20° et 45°, plus préférentiellement entre 25° et 30°. [Claims 7] Panel (1) according to one of claims 3 to 6 characterized in that the lower face (C) of the stepped outer wall of the lower tongue (Li) is parallel or more inclined than the lower face (C ') of the stepped internal wall of the upper groove (Rs), and is inclined at an angle between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°.
[Revendications 8] Panneau (1 ) selon l’une des revendications 1 à 7 caractérisé en ce que la paroi interne (F) de la languette inférieure (Li) est inclinée selon un angle compris entre 5° et 45°, de préférence entre 20° et 45°, plus préférentiellement entre 25° et 30°, et est parallèle à la paroi externe (F’) de la rainure supérieure (Rs). [Claims 8] Panel (1) according to one of Claims 1 to 7, characterized in that the internal wall (F) of the lower tongue (Li) is inclined at an angle of between 5° and 45°, preferably between 20° and 45°, more preferably between 25° and 30°, and is parallel to the outer wall (F') of the upper groove (Rs).
[Revendications 9] Panneau (1 ) selon la revendication 3 caractérisé en ce que le pan supérieur (A) de la paroi externe étagée de la languette inférieure (Li) est parallèle à la paroi interne (F) de la languette inférieure (Li). [Claims 9] Panel (1) according to claim 3 characterized in that the upper face (A) of the stepped outer wall of the lower tongue (Li) is parallel to the inner wall (F) of the lower tongue (Li) .
[Revendications 10] Panneau (1 ) selon l’une des revendications 1 à 9 caractérisé en ce que le pan supérieur (E’) de la paroi externe de la languette supérieure (Ls) est vertical ou incliné selon un angle compris entre 1 ° et 10°, de préférence 5°, et est parallèle au pan supérieur (E) de la paroi interne de la rainure inférieure (Ri). [Claims 10] Panel (1) according to one of Claims 1 to 9, characterized in that the upper face (E') of the outer wall of the upper tongue (Ls) is vertical or inclined at an angle of between 1° and 10°, preferably 5°, and is parallel to the upper face (E) of the internal wall of the lower groove (Ri).
[Revendications 11] Panneau (1 ) selon l’une des revendications 1 à 10 caractérisé en ce que le pan inférieur (G’) de la paroi externe de la languette supérieure (Ls) est incliné selon un angle compris entre 45° et 80°, de préférence entre 55° et 70°, et est parallèle au pan inférieur (G) de la paroi interne de la rainure inférieure (Ri). [Claims 11] Panel (1) according to one of claims 1 to 10 characterized in that the lower face (G ') of the outer wall of the upper tongue (Ls) is inclined at an angle between 45 ° and 80 °, preferably between 55° and 70°, and is parallel to the lower face (G) of the internal wall of the lower groove (Ri).
PCT/FR2022/052503 2021-12-31 2022-12-26 Floor or wall covering panel with increased resistance to disassembly WO2023126606A1 (en)

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FRFR2114751 2021-12-31
FR2114751A FR3131593B1 (en) 2021-12-31 2021-12-31 Floor or wall covering panel with increased resistance to disassembly

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WO2023126606A1 true WO2023126606A1 (en) 2023-07-06

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4426820A (en) 1979-04-24 1984-01-24 Heinz Terbrack Panel for a composite surface and a method of assembling same
WO2016029255A1 (en) 2014-08-29 2016-03-03 Kell Richard William Vertical joint system for a surface covering panel
WO2020083614A1 (en) 2018-10-26 2020-04-30 I4F Licensing Nv Multi-purpose tile system, tile covering, and tile
WO2021105798A1 (en) 2019-11-25 2021-06-03 Flooring Industries Limited, Sarl Panel comprising coupling parts
WO2021144613A1 (en) 2020-01-16 2021-07-22 Flooring Industries Limited, Sarl Reversible floor covering element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4426820A (en) 1979-04-24 1984-01-24 Heinz Terbrack Panel for a composite surface and a method of assembling same
WO2016029255A1 (en) 2014-08-29 2016-03-03 Kell Richard William Vertical joint system for a surface covering panel
WO2020083614A1 (en) 2018-10-26 2020-04-30 I4F Licensing Nv Multi-purpose tile system, tile covering, and tile
WO2021105798A1 (en) 2019-11-25 2021-06-03 Flooring Industries Limited, Sarl Panel comprising coupling parts
WO2021144613A1 (en) 2020-01-16 2021-07-22 Flooring Industries Limited, Sarl Reversible floor covering element

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FR3131593A1 (en) 2023-07-07

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