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EP4372181A2 - Panneau - Google Patents

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Publication number
EP4372181A2
EP4372181A2 EP24167945.5A EP24167945A EP4372181A2 EP 4372181 A2 EP4372181 A2 EP 4372181A2 EP 24167945 A EP24167945 A EP 24167945A EP 4372181 A2 EP4372181 A2 EP 4372181A2
Authority
EP
European Patent Office
Prior art keywords
locking
panel
groove
receiving
edge
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP24167945.5A
Other languages
German (de)
English (en)
Other versions
EP4372181A3 (fr
Inventor
Hans-Jürgen HANNIG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
I4F Licensing NV
Original Assignee
I4F Licensing NV
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 I4F Licensing NV filed Critical I4F Licensing NV
Publication of EP4372181A2 publication Critical patent/EP4372181A2/fr
Publication of EP4372181A3 publication Critical patent/EP4372181A3/fr
Pending legal-status Critical Current

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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
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • 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
    • 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
    • E04F2201/0146—Joining sheets, plates or panels with edges in abutting relationship by moving the sheets, plates or panels perpendicular to the main plane with snap action of the edge connectors
    • 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
    • E04F2201/0161—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 with snap action of the edge connectors
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/023—Non-undercut connections, e.g. tongue and groove connections with a continuous tongue or groove
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/027—Non-undercut connections, e.g. tongue and groove connections connected by tongues and grooves, the centerline of the connection being inclined to the top surface
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/04—Other details of tongues or grooves
    • E04F2201/043—Other details of tongues or grooves with tongues and grooves being formed by projecting or recessed parts of the panel layers

Definitions

  • the invention relates to a panel comprising a panel top and a panel bottom as well as at least four panel edges which are opposite each other in pairs, with complementary holding profiles provided in pairs on the panel edges, which fit together in such a way that similar panels can be fastened to each other, wherein at least one of the holding profile pairs is provided with hook profiles, namely on one panel edge with a receiving hook and on the opposite panel edge with a locking hook.
  • Such panels are made of DE 102011 086846 A Other similar panels are available in DE 102011 121348 A , WO 2012/001503 A , and WO 03/016654 A disclosed.
  • Such panels are used, for example, to make floor coverings; they are particularly suitable for floating floor coverings.
  • the panels usually have decorative surfaces.
  • the proposed panel should be suitable for locking using the "fold-down method".
  • a type of panel is used in which one of the holding profile pairs is provided with a modified tongue and groove profile, while the other holding profile pair is provided with the hook profiles according to the invention.
  • a new panel is angled and preferably brought with its tongue profile edge to the groove profile edge of a lying panel or a row of panels. Then the new panel is swung down to the level of the installed panels, thereby locking the tongue profile with the groove profile.
  • a positive locking of the hook profiles is also created at the same time, because one of the hook profiles moves towards the other hook profile like a pair of scissors and hooks into it with a positive fit. This creates a locking effect.
  • the proposed hook profiles are also suitable for push-down locking.
  • all pairs of retaining profiles of a panel must be able to be connected by a vertical movement, i.e. for example by a lowering movement of a panel, namely in a direction perpendicular to the top of the panel (vertical).
  • the fold-down method cannot then be used.
  • the WO 01/02670 proposes various pairs of hook profiles.
  • the hook profiles are intended to prevent the panels from being pulled apart horizontally, ie in the panel plane and perpendicular to the locked panel edges.
  • the strength of the hook profiles is unsatisfactory.
  • the invention proposes a panel comprising a panel top and a panel bottom and at least four panel edges which are opposite each other in pairs, with complementary holding profiles provided in pairs on the panel edges, which fit together in such a way that similar panels can be fastened to each other, wherein at least one of the holding profile pairs is provided with hook profiles, namely with a receiving hook on one panel edge and with a locking hook on the opposite panel edge, wherein the receiving hook has a receiving edge directed towards the panel top and a receiving groove open towards the panel top and the locking hook is provided with a locking edge directed towards the panel bottom and with a locking groove open towards the panel bottom, wherein the receiving edge has an inner side which faces the receiving groove, and this inner side serves as a lower locking surface, and matching this, the locking edge has an inner side which faces the locking groove, and this inner side serves as a corresponding upper locking surface, provided that both the upper locking surface and the lower locking surface are inclined relative to the vertical on the top of the panel in such a way is that in the locked state they are align
  • the normal vector is directed vertically outwards from the corresponding locking surface (not into the panel material).
  • the normal vector forms an angle with the respective panel side that it intersects, which is the same size as the angle by which the locking surfaces are inclined relative to the perpendicular on the top of the panel (alternating angle).
  • the inclination of the locking surfaces relative to the plumb line on the top of the panel can be in an angle range ⁇ of 4° to 50°.
  • the angle ⁇ is in a range of 5° to 30° and particularly preferably in a range of 5° to 15°.
  • the panel is preferably made of a wood material such as HDF, MDF or OSB, although in a broader sense this also includes WPC materials (wood plastic composite). Since the locking mechanism requires a certain elasticity, especially in the area of the first and corresponding second locking means, the materials mentioned are suitable because of their certain elasticity.
  • the panel material can also be a plastic, as in the case of LVT products (luxury vinyl tiles), because this plastic also has a certain elasticity.
  • a design can consist of a body made from a plastic or a wood-plastic composite material (WPC).
  • WPC wood-plastic composite material
  • the carrier plate or the body is made from a thermoplastic, elastomer or thermosetting plastic, for example.
  • recycled materials made from the materials mentioned can be used within the scope of the invention.
  • sheet material is used, in particular made of thermoplastic plastic, such as polyvinyl chloride, polyolefins (for example polyethylene (PE), polypropylene (PP), polyamides (PA), polyurethanes (PU), polystyrene (PS), acrylonitrile-butadiene-styrene (ABS), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), polyetheretherketone (PEEK) or mixtures or copolymers.
  • thermoplastic plastic such as polyvinyl chloride, polyolefins (for example polyethylene (PE), polypropylene (PP), polyamides (PA), polyurethanes (PU), polystyrene (PS), acrylonitrile-butadiene-styrene (ABS), polymethyl methacrylate (PMMA), polycarbonate (PC), polyethylene terephthalate (PET), polyetheretherketone (PEEK) or mixtures or copoly
  • plasticizers can be provided, for example, which can be present in a range of ⁇ 0 wt.% to ⁇ 20 wt.%, in particular ⁇ 10 wt.%, preferably ⁇ 7 wt.%, for example in a range of ⁇ 5 wt.% to ⁇ 10 wt.%.
  • a suitable plasticizer includes, for example, the plasticizer sold by BASF under the trade name "Dinsch".
  • copolymers, such as acrylates or methacrylates can be provided as a replacement for conventional plasticizers.
  • Thermoplastics in particular also offer the The advantage is that the products made from them can be recycled very easily. Recycled materials from other sources can also be used. This provides another opportunity to reduce manufacturing costs.
  • Such carrier plates are very elastic or springy, which allows a comfortable impression when walking on them and can also reduce the noise that occurs when walking on them compared to conventional materials, thus improving impact sound insulation.
  • the aforementioned carrier plates offer the advantage of good water resistance, as they have a swelling of 1% or less. Surprisingly, this applies not only to pure plastic carriers but also to WPC materials, as explained in detail below.
  • the material of the carrier plate can comprise or consist of wood-polymer materials (wood plastic composite, WPC).
  • wood and a polymer can be suitable here, which can be present in a ratio of 40/60 to 70/30, for example 50/50.
  • Polypropylene, polyethylene or a copolymer of the two aforementioned materials can be used as polymer components.
  • Such materials offer the advantage that they can be formed into a carrier plate even at low temperatures, such as in a range of ⁇ 180°C to ⁇ 200°C in the method described above, so that a particularly effective process control can be made possible, for example with exemplary line speeds in a range of 6 m/min.
  • WPC product with a 50/50 distribution of the wood and polymer components with an exemplary product thickness of 4.1 mm which can enable a particularly effective manufacturing process.
  • WPC materials can, for example, contain stabilizers and/or other additives, which can preferably be present in the plastic portion.
  • the carrier plate can comprise or consist of a PVC-based material.
  • PVC-based materials for the carrier plate are also suitable for a particularly effective manufacturing process, since line speeds of 8 m/min can be possible with an exemplary product thickness of 4.1 mm, which can enable a particularly effective manufacturing process.
  • carrier plates also have advantageous elasticity and water compatibility, which can lead to the aforementioned advantages.
  • Mineral fillers can be beneficial for plastic-based panels as well as for WPC-based panels.
  • Particularly suitable are talc or calcium carbonate (chalk), aluminum oxide, silica gel, quartz powder, Wood flour, gypsum.
  • talc or calcium carbonate (chalk) aluminum oxide
  • silica gel silica gel
  • quartz powder quartz powder
  • Wood flour Wood flour
  • gypsum gypsum
  • chalk can be provided in a range of ⁇ 30 wt.% to ⁇ 70 wt.%, whereby the slip of the carrier plate can be improved by the fillers, in particular by the chalk.
  • They can also be colored in a known manner.
  • the material of the carrier plates contains a flame retardant.
  • the material of the carrier plate consists of a mixture of a PE/PP block copolymer with wood.
  • the proportion of the PE/PP block copolymer and the proportion of wood can be between ⁇ 45% by weight and ⁇ 55% by weight.
  • the material of the carrier plate can have between ⁇ 0% by weight and ⁇ 10% by weight of other additives, such as flow aids, thermal stabilizers or UV stabilizers.
  • the particle size of the wood is between >0 ⁇ m and ⁇ 600 ⁇ m with a preferred particle size distribution D50 of ⁇ 400 pm.
  • the material of the carrier plate can have wood with a particle size distribution D10 of ⁇ 400 ⁇ m.
  • the particle size distribution is based on the volumetric diameter and refers to the volume of the particles.
  • the material of the carrier plate is particularly preferably provided as a granulated or pelletized pre-extruded mixture of a PE/PP block copolymer with wood particles of the specified particle size distribution.
  • the granulate and/or the pellets can preferably have a grain size in a range of ⁇ 400 ⁇ m to ⁇ 10 mm, preferably ⁇ 600 ⁇ m to ⁇ 10 mm, in particular ⁇ 800 ⁇ m to ⁇ 10 mm.
  • the carrier plate consists of a mixture of a PE/PP polymer blend with wood.
  • the proportion of the PE/PP polymer blend can and the proportion of wood is between ⁇ 45 wt.% and ⁇ 55 wt.%.
  • the material of the carrier plate can contain between ⁇ 0 wt.% and ⁇ 10 wt.% of other additives, such as flow aids, thermal stabilizers or UV stabilizers.
  • the particle size of the wood is between >0 ⁇ m and ⁇ 600 ⁇ m with a preferred particle size distribution D50 of ⁇ 400 ⁇ m.
  • the carrier plate can contain wood with a particle size distribution D10 of ⁇ 400 ⁇ m.
  • the particle size distribution is based on the volumetric diameter and refers to the volume of the particles.
  • the material of the carrier plate is particularly preferably provided as a granulated or pelletized pre-extruded mixture of a PE/PP polymer blend with wood particles of the specified particle size distribution.
  • the granules and/or the pellets can preferably have a grain size in a range of ⁇ 400 ⁇ m to ⁇ 10 mm, preferably ⁇ 600 ⁇ m to ⁇ 10 mm, in particular ⁇ 800 ⁇ m to ⁇ 10 mm.
  • the material of the carrier plate consists of a mixture of a PP homopolymer with wood.
  • the proportion of PP homopolymer and the proportion of wood can be between ⁇ 45% by weight and ⁇ 55% by weight.
  • the material of the carrier plate can have between ⁇ 0% by weight and ⁇ 10% by weight of other additives, such as flow aids, thermal stabilizers or UV stabilizers.
  • the particle size of the wood is between >0 ⁇ m and ⁇ 600 ⁇ m with a preferred particle size distribution D50 of ⁇ 400 ⁇ m.
  • the carrier plate can have wood with a particle size distribution D10 of ⁇ 400 ⁇ m. The particle size distribution is based on the volumetric diameter and relates to the volume of the particles.
  • the material of the carrier plate is particularly preferably in the form of granulated or pelletized pre-extruded mixture of a PP homopolymer with wood particles of the specified particle size distribution.
  • the granulate and/or the pellets can preferably have a grain size in a range of ⁇ 400 ⁇ m to ⁇ 10 mm, preferably ⁇ 600 ⁇ m to ⁇ 10 mm, in particular ⁇ 800 ⁇ m to ⁇ 10 mm.
  • the material of the carrier plate consists of a mixture of a PVC polymer with chalk. The proportion of the PVC polymer and the chalk proportion can be between ⁇ 45 wt.% and ⁇ 55 wt.%.
  • the material of the carrier plate can have between ⁇ 0 wt.% and ⁇ 10 wt.% of other additives, such as flow aids, thermal stabilizers or UV stabilizers.
  • the particle size of the chalk is between >0 ⁇ m and ⁇ 600 ⁇ m with a preferred particle size distribution D50 of ⁇ 400 ⁇ m.
  • the material of the carrier plate can have chalk with a particle size distribution D10 of ⁇ 400 ⁇ m.
  • the particle size distribution is based on the volumetric diameter and relates to the volume of the particles.
  • the material of the carrier plate is particularly preferably provided as a granulated or pelletized pre-extruded mixture of a PVC polymer with chalk of the specified particle size distribution.
  • the granulate and/or the pellets can preferably have a grain size in a range of ⁇ 400 ⁇ m to ⁇ 10 mm, preferably ⁇ 600 ⁇ m to ⁇ 10 mm, in particular ⁇ 800 ⁇ m to ⁇ 10 mm.
  • the material of the carrier plate consists of a mixture of a PVC polymer with wood.
  • the proportion of PVC polymer and the proportion of wood can be between ⁇ 45% by weight and ⁇ 55% by weight.
  • the material of the carrier plate can contain between ⁇ 0% by weight and ⁇ 10% by weight of other additives, such as Flow aids, thermal stabilizers or UV stabilizers.
  • the particle size of the wood is between >0 ⁇ m and ⁇ 600 ⁇ m with a preferred particle size distribution D50 of ⁇ 400 ⁇ m.
  • the material of the carrier plate can have wood with a particle size distribution D10 of ⁇ 400 ⁇ m. The particle size distribution is based on the volumetric diameter and relates to the volume of the particles.
  • the material of the carrier plate is particularly preferably provided as a granulated or pelletized pre-extruded mixture of a PVC polymer with wood particles of the specified particle size distribution.
  • the granules and/or the pellets can preferably have a grain size in a range of ⁇ 400 ⁇ m to ⁇ 10 mm, preferably ⁇ 600 ⁇ m to ⁇ 10 mm, in particular ⁇ 800 ⁇ m to ⁇ 10 mm.
  • Generally known methods such as laser diffractometry can be used to determine the particle size distribution. This method can determine particle sizes in the range of a few nanometers up to several millimeters. It can also be used to determine D50 or D10 values, which are 50% or 10% of the measured particles smaller than the specified value.
  • the material of the carrier plate comprises a matrix material comprising a plastic and a solid material, wherein the solid material is formed by talc to an extent of at least 50% by weight, in particular at least 80% by weight, particularly preferably at least 95% by weight, based on the solid material.
  • the matrix material is present in an amount, based on the material of the carrier, of ⁇ 30% by weight to ⁇ 70% by weight, in particular of ⁇ 40% by weight to ⁇ 60% by weight.
  • the solid material, based on the material of the carrier is present in an amount, based on the material of the carrier plate, of ⁇ 30 wt.% to ⁇ 70 wt.%, in particular of ⁇ 40 wt.% to ⁇ 60 wt.%, for example less than or equal to 50 wt.%. Furthermore, it is provided that the material of the carrier plate and the solid material together are present in an amount of ⁇ 95 wt.%, in particular ⁇ 99 wt.%, based on the material of the carrier plate.
  • the solid material can be made up of at least 50% by weight, in particular at least 80% by weight, for example 100%, based on the solid material, talc.
  • talc is understood in a manner known per se to be a magnesium silicate hydrate, which can have the chemical formula Mg3[S14O10(OH)2], for example.
  • the solid portion is thus advantageously made up of at least a large part of the mineral substance talc, whereby this substance can be used in powder form, for example, or can be present in the material of the carrier plate in the form of particles.
  • the solid material can consist of a powdered solid.
  • the specific surface density according to BET, ISO 4652 of the talc particles is in a range of ⁇ 4 m2/g to ⁇ 8 m2/g, for example in a range of ⁇ 5 m2/g to ⁇ 7 m2/g.
  • the talc has a bulk density according to DIN 53468 in a range of ⁇ 0.15 g/cm3 to ⁇ 0.45 g/cm3, for example in a range of ⁇ 0.25 g/cm3 to ⁇ 0.35 g/cm3.
  • the matrix material in such an embodiment of the invention serves in particular to provide a Carrier to receive or embed the solid material.
  • the matrix material comprises a plastic or a plastic mixture.
  • the matrix material can be advantageous for the matrix material to comprise a thermoplastic. This makes it possible for the material of the carrier plate or a component of the material of the carrier plate to have a melting point or a softening point in order to shape the material of the carrier plate in a further process step by the action of heat, as described in detail below with regard to the process.
  • the matrix material can in particular consist of a plastic or a plastic mixture and optionally an adhesion promoter. These components can preferably make up at least 90% by weight, particularly preferably at least 95% by weight, in particular at least 99% by weight of the matrix material.
  • the matrix material is present in an amount, based on the material of the carrier plate, of ⁇ 30 wt.% to ⁇ 70 wt.%, in particular of ⁇ 40 wt.% to ⁇ 60 wt.%.
  • the solid material is present in an amount, based on the material of the carrier plate, of ⁇ 30 wt.% to ⁇ 70 wt.%, in particular of ⁇ 40 wt.% to ⁇ 60 wt.%.
  • Polypropylene is particularly suitable as a matrix material because it is available at low cost and, as a thermoplastic, has good properties as a matrix material for embedding the solid material.
  • a mixture of a homopolymer and a copolymer for the matrix material can offer particularly advantageous properties. Properties. Such materials also offer the advantage that they can be formed into a carrier in the method described above even at low temperatures, such as in a range of ⁇ 180°C to ⁇ 200°C, so that a particularly effective process control can be made possible, for example with exemplary line speeds in a range of 6 m/min.
  • the homopolymer has a tensile strength according to ISO 527-2 which is in a range of ⁇ 30 MPa to ⁇ 45 MPa, for example in a range of ⁇ 35 MPa to ⁇ 40 MPa, in order to achieve good stability.
  • the homopolymer has a flexural modulus according to ISO 178 in a range of ⁇ 1000 MPa to ⁇ 2200 MPa, for example in a range of ⁇ 1300 MPa to ⁇ 1900 MPa, for example in a range of ⁇ 1500 MPa to ⁇ 1700 MPa.
  • the tensile deformation of the homopolymer according to ISO 527-2 it may also be advantageous if it is in a range of ⁇ 5% to ⁇ 13%, for example in a range of ⁇ 8% MPa to ⁇ 10%.
  • the Vicat softening temperature according to ISO 306/A for an injection-molded component is in a range from ⁇ 130°C MPa to ⁇ 170°C, for example in a range from ⁇ 145°C to ⁇ 158°C.
  • the solid material may also contain at least one other solid in addition to talc.
  • This design may in particular make it possible for the weight of the material of the carrier plate or of a Panels can be significantly reduced compared to a material of the carrier plate or panel in which the solid material consists of talc.
  • the solid added to the solid material can in particular have a reduced density compared to talc.
  • the added material can have a bulk density that is in a range of ⁇ 2000 kg/m3, in particular ⁇ 1500 kg/m3, for example ⁇ 1000 kg/m3, particularly preferably ⁇ 500 kg/m3.
  • further adaptability to the desired, in particular mechanical, properties can also be made possible.
  • the additional solid can be selected from the group consisting of wood, for example in the form of wood flour, expanded clay, volcanic ash, pumice, aerated concrete, in particular inorganic foams, cellulose.
  • wood for example in the form of wood flour, expanded clay, volcanic ash, pumice, aerated concrete, in particular inorganic foams, cellulose.
  • aerated concrete this can, for example, be the solid used by the company Xella under the brand name YTONG, which essentially consists of quartz sand, lime and cement, or the aerated concrete can have the aforementioned components.
  • the added solid this can, for example, be made up of particles that have the same particle size or particle size distribution as the particle sizes or particle size distributions described above for talc.
  • the additional solids can in particular be present in the solid material in a proportion that is in a range of ⁇ 50 wt.%, in particular ⁇ 20 wt.%, for example ⁇ 10 wt.%, further for example ⁇ 5 wt.%.
  • the particle size is between >0 ⁇ m and ⁇ 600 ⁇ m with a preferred particle size distribution D50 of ⁇ 400 ⁇ m.
  • the material of the carrier plate can comprise hollow microspheres.
  • Such additives can in particular have the effect that the density of the carrier plate and thus of the panel produced can be significantly reduced, so that particularly simple and cost-effective transport and also particularly convenient installation can be ensured.
  • the insertion of hollow microspheres can ensure a stability of the panel produced, which is not significantly reduced compared to a material without hollow microspheres. The stability is therefore completely sufficient for the majority of applications.
  • Hollow microspheres can in particular be understood to mean structures which have a hollow base body and a size or a maximum diameter which is in the micrometer range.
  • usable hollow spheres can have a diameter which is in the range of ⁇ 5 ⁇ m to ⁇ 100 ⁇ m, for example ⁇ 20 ⁇ m to ⁇ 50 ⁇ m.
  • any material can be considered as the material of the hollow microspheres, such as glass or ceramic.
  • plastics such as those also used in the material of the carrier plate, for example PVC, PE or PP, can be advantageous, although these can optionally be prevented from deforming during the manufacturing process, for example by suitable additives.
  • the hardness of the material of the carrier plate can have values in a range of 30-90 N/mm 2 (measured according to Brinell).
  • the modulus of elasticity can be in a range of 3,000 to 7,000 N/mm 2 .
  • the part of the groove base of the locking groove and the part the top of the receiving edge can be aligned parallel to each other when locked.
  • the receiving groove of one hook profile is designed such that the locking edge of the complementary hook profile fits into the receiving groove and the locking groove of the complementary hook profile is designed such that the receiving edge of one hook profile fits into the locking groove.
  • a further development provides that the first locking means of the lower locking mechanism has a locking projection and that the second locking means of the lower locking mechanism has a matching locking recess.
  • the first locking means of the lower locking mechanism can have a locking recess and the second locking means of the lower locking mechanism can have a matching locking projection.
  • an upper locking mechanism which has a first locking means on an outer side of the locking edge and a corresponding second locking means is provided on a recessed groove flank of the receiving groove.
  • the first locking means of the upper locking mechanism has a locking projection and the second locking means of the upper locking mechanism has a matching locking recess.
  • the first locking means of the upper locking mechanism can have a locking recess and the second locking means of the upper locking mechanism can have a matching locking projection.
  • the free space can accommodate dirt particles or other loose particles.
  • particles can be caught from the edge of the panel. which should not become stuck between the joining surfaces of the hook profiles. Otherwise they could prevent the hook profiles from locking in the correct position.
  • the underside of the locking edge at least partially touches the base of the receiving groove when locked. If a load presses on the top of the panel in the area of the locking edge, the locking edge can bear this load because its underside is supported on the base of the receiving groove of the receiving hook.
  • the receiving edge conveniently has a transition to the inside of the receiving groove, whereby the transition is provided with a curve.
  • the curve offers edge protection. It can also be used to guide the locking edge when it comes into contact with the curve. In this way, the locking edge is moved down along the curve into the receiving groove.
  • Fig.1 shows a perspective fold-down method for locking panels according to the state of the art.
  • a new panel 1 is brought at an angle with a tongue profile edge 2 in front to a groove profile edge 3 of a lying panel 4 of a previous row of panels.
  • the new panel 1 is then placed in the plane of the assembled Panels are swung down, with an identical panel 5 already lying in the same row of panels.
  • the pivoting joining movement causes the tongue and groove profile edges to lock together.
  • the new panel 1 also has a pair of hook profiles, namely a receiving hook (not shown) and a locking hook 6.
  • the locking hook 6 of the new panel 1 is moved like a pair of scissors in the direction of the complementary receiving hook 7 of the identical panel 5.
  • the locking hook 6 hooks into the receiving hook 7 and at the same time as the tongue and groove profile edges are locked, the hook profiles are positively locked.
  • Fig.1 the structure of a floor area is indicated.
  • a new panel is always placed continuously to the left.
  • Fig.2 shows a second example of a fold-down method known in the prior art for locking panels. It differs from the method of Fig.1 only because a new panel must be placed continuously to the right, ie the panel edges that have the receiving hook or the locking hook are compared to the example of Fig.1 been swapped.
  • Tongue and groove profiles that are suitable for positive locking using the fold-down method are well known in the art, for example from WO 97/ 47834 A1 or from WO 00/63510 .
  • Fig.3 represents a first embodiment of a panel 1 according to the invention with a panel top 1a and a panel bottom 1b, whereby only one pair of retaining profiles of the panel is shown in simplified form.
  • the retaining profile pair shown here has complementary hook profiles, namely a locking hook 6 (top) and a receiving hook 7 (bottom).
  • hook profiles of identical panels are of course locked in the same way.
  • the receiving hook 6 has a receiving edge 8 directed towards the top of the panel 1a and a receiving groove 9 open towards the top of the panel.
  • the locking hook 7 is provided with a locking edge 10 directed towards the bottom of the panel 1b and with a locking groove 11 open towards the bottom of the panel 1b.
  • the receiving edge 8 faces the receiving groove 9 and this inner side serves as a lower locking surface 12.
  • the locking hook 7 forms an upper locking surface 13 on an inner side of its locking edge 10 facing the locking groove 11, which upper locking surface 13 cooperates with the lower locking surface 12 of the receiving edge 8.
  • Both the lower locking surface 12 and the upper locking surface 13 are each inclined by an angle ⁇ relative to the vertical line L on the top of the panel.
  • the inclinations are aligned with one another so that the corresponding locking surfaces 12 and 13 are aligned parallel to one another in the locked state and can touch one another.
  • the inclination of the lower locking surface 12 is selected such that the normal vector N 12 , which is directed vertically outwards from the lower locking surface 12, intersects the panel top 1a.
  • the normal vector N 13 on the upper locking surface 13 is directed vertically outwards, so that this Normal vector N 13 intersects the opposite panel bottom side 1b.
  • the panel top side 1a and the normal vector N 12 enclose an angle that is as large as the angle ⁇ mentioned above (alternating angle). The same applies to the panel bottom side, which encloses an angle of the same size (alternating angle) with the normal vector N 13 .
  • the locking hook 7 sits firmly on a groove base 9a of the receiving groove 9 of the receiving hook 6. If a load presses on the panel top side 1a in the area of the locking edge 10, the locking edge 10 can bear this load because its bottom side 10a is supported on the groove base 9a of the receiving groove 9.
  • a further function of the hook profiles is to counteract a height offset of the locked panel edges.
  • a lower locking mechanism 14 is provided. This comprises a first locking means in the form of a protruding locking projection 15 on the receiving hook 7. The locking projection 15 is arranged on an outer side 8a of the receiving edge 8.
  • a second locking means in the form of a locking recess 16 is provided on the locking hook 7. The locking recess 16 is arranged on a recessed groove flank 11a of the locking groove 11.
  • a section 8b of the top of the receiving edge 8 has a downward incline, namely falling in the direction of the outer side 8a of the receiving edge.
  • a section 11b of the groove base of the locking groove 11 is adapted in a complementary manner to the inclination of the section 8b of the top of the receiving edge 8. In the locked state, the inclined sections 8b and 11b of the top of the receiving edge and of the locking groove base are aligned parallel to one another.
  • a transition from the upper side 8b of the receiving edge 8 to the lower locking surface 12 is provided on the receiving hook 6.
  • the transition is designed as a curve 17.
  • the curve 17 is a radius.
  • a transition with a curve 18 between the section 11b of the groove base of the locking groove 11 and the upper locking surface 13 is also provided on the locking hook 7.
  • the curve 17 on the receiving edge offers edge protection and a guide surface. The edge protection is stronger than the protective effect of a phase which has the same width and height as the curve 17.
  • the curve 18 forms a groove. In the present example, it has a radius and serves to provide stability in the transition area from the upper locking surface 13 to the groove base of the locking groove 11.
  • Fig.4 the hook profiles are made of Fig.3 shown in the locked state.
  • the lower locking mechanism 14 counteracts a height offset of the two panel top sides 1a, ie a movement of the panel edges apart perpendicular to the panel surface is counteracted.
  • a closed joint F is also formed on the panel surface 1a in the horizontal direction. At this joint, an outside 10b of the locking edge 10 is in contact with a recessed groove flank 9b of the receiving groove 9.
  • the gap 19 there is a gap 19 between the inclined section 11b of the groove base of the locking groove and the inclined section 8b of the upper side of the receiving edge 8. This facilitates a height offset at the joint F of the panel upper side 1a.
  • the gap 19 allows a certain flexibility of the locking hook 7. It has a point with its smallest thickness, which is located where the locking groove 11 is at its deepest. The flexibility gained in this way can be used because the gap 19 creates space into which deformation can take place.
  • Fig. 4a shows a detail that enlarges a section that is in Fig.4 marked with IVa.
  • the locking projection 15 is provided on the receiving hook 6, namely on the outer side 8a of the receiving edge 8.
  • the locking recess is provided on the locking hook 7 and there on a recessed groove flank 11a of the locking groove 11.
  • a locking recess 15a is arranged on the receiving hook 6, specifically on the outside 8a of the receiving edge 8.
  • a locking projection 16a is then provided on the locking hook 7, specifically on its recessed groove flank 11a of the locking groove 11.
  • FIG.5 Another example of a panel with special hook profiles is Fig.5 This is based on the example of the Figures 3 and 4 It differs from this by an additional upper latch 20.
  • the upper latch 20 has a first latching means in the form of a latching projection 21 on the locking hook 7, which is arranged on the outside 10b of the locking edge 10. It works together with a corresponding second latching means on the receiving hook 6, which is provided on the recessed groove flank 9b of the receiving groove 9.
  • the second latching means forms a latching recess 22, as best shown in the cutout according to Fig. 5a can be recognized.
  • Fig. 5a enlarged the detail that in Fig.5 is designated Va.
  • a locking recess 21a is arranged on the locking hook, namely on the outside of the locking edge 10.
  • a locking projection 22a is provided on the receiving hook, namely on the recessed groove flank 9b of the receiving groove 9.
  • a free space 23 is formed which extends between the groove base 9a of the receiving groove 9 of the receiving hook 6 and a bottom side 10a of the locking edge 10 of the locking hook 7.
  • the free space 23 extends to the outside 10b of the locking edge 10 or to the recessed groove flank 9b of the receiving groove 9.
  • the free space 23 can accommodate dirt particles or other loose particles. In the case of panels made of wood materials, for example, particles can detach from the edge of the panel. Detached particles should not get between the joining surfaces of the hook profiles and become stuck there, because otherwise they will prevent the hook profiles from being locked in the correct position.
  • the proposed free space 23 is designed in the form of a gap.
  • the gap-shaped free space 23 widens towards the groove base 9a and in this way creates the desired space for the absorption of undesirable particles.
  • the embodiment of the Fig.7 shows hook profiles, which are also based on the Figures 3 and 4 have a change in such a way that again in the locked state the hook profiles, a free space 24 is formed which extends between the groove base 9a of the receiving groove 9 of the receiving hook 6 and an underside 10a of the locking edge 10 of the locking hook 7.
  • the free space 24 reaches as far as the lower locking surface 12 of the receiving hook 6 or as far as the upper locking surface 13 of the locking hook 7.
  • the underside 10a of the locking edge 10 is provided with a flat shoulder 24a which stands back from the underside 10a of the locking edge 10.
  • the free space 24 can also absorb dirt particles or other loose particles and, in the case of panels made of wood materials, can absorb any detached wood particles which would otherwise become stuck between the joining surfaces of the hook profiles and prevent the hook profiles from being locked in the correct position.
  • the remaining area of the underside 10a is in contact with the groove base 9a of the receiving groove 9 and is thereby supported.
  • the embodiment of the Fig.8 also shows hook profiles that are used by the Figures 3 and 4 Compared to these figures, only the lower locking mechanism 14 has been modified. According to Fig.8 the locking projection 15 of the receiving hook 6 protrudes further from the outside 8a of the receiving edge 8 than in Fig.4 The depth of the locking recess 16 is opposite Fig.4 unchanged. This creates a gap 25 between the outer side 8a and the recessed groove flank 11a of the locking groove 11 of the locking hook 7. The gap 25 improves the ability of the lower locking mechanism 14 to engage.
  • FIG. 8a the lower catch 14 is enlarged as a cutout.
  • An alternative to Fig. 8a shows the section according to Fig. 8b .
  • the position of the locking recess and locking projection is then swapped.
  • a locking recess 15a is now on the receiving hook 6, specifically on the outside 8a of the receiving edge 8.
  • a locking projection 16a is provided for this purpose on the locking hook 7 on its recessed groove flank 11a of the locking groove 11.
  • FIG.9 Another example of hook profiles for the panel is shown in Fig.9 This is also based on the Figures 3 and 4 and also integrates all changes made in the examples of Fig. 5, Fig. 6 , Fig. 7 and Fig. 8 were proposed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Floor Finish (AREA)
  • Finishing Walls (AREA)
  • Connection Of Plates (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Hooks, Suction Cups, And Attachment By Adhesive Means (AREA)
  • Joining Of Building Structures In Genera (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Vehicle Step Arrangements And Article Storage (AREA)
EP24167945.5A 2014-12-08 2015-12-07 Panneau Pending EP4372181A3 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
EP14196822.2A EP3031998B1 (fr) 2014-12-08 2014-12-08 Panneau avec une mécanisme de verrouillage mécanique en forme de crochet
EP20167421.5A EP3705659B1 (fr) 2014-12-08 2015-12-07 Panneau avec une mécanisme de verrouillage mécanique en de forme de crochet
PCT/EP2015/078854 WO2016091819A1 (fr) 2014-12-08 2015-12-07 Panneau avec un système de verrouillage en forme de crochet
EP21206764.9A EP3981931B1 (fr) 2014-12-08 2015-12-07 Panneau avec système de verrouillage en forme de crochet
EP15804853.8A EP3230534B1 (fr) 2014-12-08 2015-12-07 Panneau avec une mécanisme de verrouillage mécanique en de forme de crochet

Related Parent Applications (3)

Application Number Title Priority Date Filing Date
EP15804853.8A Division EP3230534B1 (fr) 2014-12-08 2015-12-07 Panneau avec une mécanisme de verrouillage mécanique en de forme de crochet
EP20167421.5A Division EP3705659B1 (fr) 2014-12-08 2015-12-07 Panneau avec une mécanisme de verrouillage mécanique en de forme de crochet
EP21206764.9A Division EP3981931B1 (fr) 2014-12-08 2015-12-07 Panneau avec système de verrouillage en forme de crochet

Publications (2)

Publication Number Publication Date
EP4372181A2 true EP4372181A2 (fr) 2024-05-22
EP4372181A3 EP4372181A3 (fr) 2024-07-24

Family

ID=52013932

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Application Number Title Priority Date Filing Date
EP14196822.2A Active EP3031998B1 (fr) 2014-12-08 2014-12-08 Panneau avec une mécanisme de verrouillage mécanique en forme de crochet
EP15804853.8A Active EP3230534B1 (fr) 2014-12-08 2015-12-07 Panneau avec une mécanisme de verrouillage mécanique en de forme de crochet
EP24167945.5A Pending EP4372181A3 (fr) 2014-12-08 2015-12-07 Panneau
EP18202881.1A Active EP3467233B1 (fr) 2014-12-08 2015-12-07 Panneau de plancher avec systeme de verrouillage mechanique
EP21206764.9A Active EP3981931B1 (fr) 2014-12-08 2015-12-07 Panneau avec système de verrouillage en forme de crochet
EP20167421.5A Active EP3705659B1 (fr) 2014-12-08 2015-12-07 Panneau avec une mécanisme de verrouillage mécanique en de forme de crochet

Family Applications Before (2)

Application Number Title Priority Date Filing Date
EP14196822.2A Active EP3031998B1 (fr) 2014-12-08 2014-12-08 Panneau avec une mécanisme de verrouillage mécanique en forme de crochet
EP15804853.8A Active EP3230534B1 (fr) 2014-12-08 2015-12-07 Panneau avec une mécanisme de verrouillage mécanique en de forme de crochet

Family Applications After (3)

Application Number Title Priority Date Filing Date
EP18202881.1A Active EP3467233B1 (fr) 2014-12-08 2015-12-07 Panneau de plancher avec systeme de verrouillage mechanique
EP21206764.9A Active EP3981931B1 (fr) 2014-12-08 2015-12-07 Panneau avec système de verrouillage en forme de crochet
EP20167421.5A Active EP3705659B1 (fr) 2014-12-08 2015-12-07 Panneau avec une mécanisme de verrouillage mécanique en de forme de crochet

Country Status (26)

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US (4) US10738477B2 (fr)
EP (6) EP3031998B1 (fr)
JP (2) JP6854761B2 (fr)
KR (1) KR102493452B1 (fr)
CN (3) CN108026728B (fr)
AT (1) AT17258U1 (fr)
AU (2) AU2015359590B2 (fr)
BR (1) BR112017012129B1 (fr)
CA (2) CA2970056C (fr)
CY (3) CY1119858T1 (fr)
DE (1) DE202015009670U1 (fr)
DK (3) DK3031998T3 (fr)
ES (5) ES2653662T3 (fr)
HR (4) HRP20200972T1 (fr)
HU (3) HUE037701T2 (fr)
LT (3) LT3031998T (fr)
MY (2) MY202786A (fr)
NO (1) NO3031998T3 (fr)
PL (5) PL3031998T4 (fr)
PT (3) PT3031998T (fr)
RS (3) RS56653B1 (fr)
RU (1) RU2711586C2 (fr)
SI (3) SI3031998T1 (fr)
SM (1) SMT202000484T1 (fr)
UA (1) UA122566C2 (fr)
WO (1) WO2016091819A1 (fr)

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