• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    building panel with a mechanical locking system. the present invention relates to a set of essentially identical panels (1, 1'), such as building panels, provided with a mechanical locking system comprising a displaceable tongue (30), which is arranged in a displacement groove with a first opening in a first edge of a first panel (1). the displaceable tongue is configured to cooperate with a first tongue groove (20), with a second opening in a second edge of an adjacent second panel (1'), for the vertical locking of the first and second edges. the height of the first opening is greater than a second height of the second opening.
    公开号:BR112015031238B1
    申请号:R112015031238-1
    申请日:2014-06-26
    公开日:2021-08-24
    发明作者:Christian Boo
    申请人:Välinge Innovation AB；
    IPC主号:
    专利说明:

    TECHNICAL FIELD OF THE INVENTION
    [0001] The present invention relates to panels such as building panels, floor board, wall panels, ceiling panels, furniture components or the like, which are provided with a mechanical locking system. TECHNICAL BACKGROUND
    [0002] Building panels provided with a mechanical locking system comprising a displaceable and resilient tongue, which cooperates with a tongue groove for vertical locking, are known and disclosed, for example, in documents in WO2006/043893 and WO2007/ 015669. The tongue is a separate part and is made, for example, of plastic and inserted into an offset groove in an edge of a panel. The tongue is driven into the displacement groove during a vertical assembly of the panels and springs back to the tongue groove of an adjacent panel when the panels have reached a locked position.
    [0003] It is also known a locking system for panels comprising a tongue, which is displaceable along the edge of a panel, see, for example, document no. WO2009/116926, and cooperates with a tongue groove for locking vertical. The tongue is a separate part and is provided with several protrusions, which initially combine with the recesses in the tongue groove. The panels can be assembled by a vertical movement and the tongue is moved to a position where the protrusions no longer combine with the recesses to obtain vertical locking.
    [0004] It is also known a locking system that comprises a tongue provided, for example, with a shim element. Two edges of adjacent panels are locked by moving the tongue along the adjacent edges, see for example document no. WO2008/004960.
    [0005] Although the description refers to floor panel, the description of the techniques and problems thereof is also applicable to other applications, such as panels for other purposes, for example, wall panels, ceiling panels, furniture, etc.
    [0006] A disadvantage with known systems is that a locking system comprising a displaceable tongue requires a preferably thick panel to ensure that the locking system meets the strength requirement.
    [0007] The above description of various known aspects is the applicant's characterization of such, and is not an admission that any of the above description is considered to be prior art. SUMMARY OF THE INVENTION
    [0008] It is an objective of certain embodiments of the present invention to provide an improvement over the techniques described above and the prior art. Particularly, the strength of the known locking system is enhanced by the embodiments of the invention.
    [0009] A further object of embodiments of the invention is to provide thinner panels with a locking system comprising a displaceable tongue.
    [0010] At least some of these and other objectives and advantages that will be evident from the description have been achieved by a first aspect of the invention comprising a set of essentially identical panels provided with a mechanical locking system comprising a displaceable tongue, which is disposed in a displacement groove in a first edge of a first panel and a first tongue groove in a second edge of an adjacent second panel. The displaceable pawl is configured to cooperate with the first pawl groove to lock in a vertical direction the first and second edges. The displacement groove is provided with a first opening and the first tongue groove is provided with a second opening wherein a height of the first opening is greater than a height of the second opening. At least a portion of the displaceable tongue is preferably configured to be driven into the displacement groove during assembly of the first and second panels and returns to a position in which an outer part of the displaceable tongue cooperates with the first tongue groove for locking in the vertical direction.
    [0011] The height of the second opening may be in the range of about 20% to about 75% of the height of the first opening, preferably in the range of about 20% to about 50% of the height of the first opening.
    [0012] The first opening and the second opening are preferably horizontally open and a vertical height of the second groove is preferably greater than a vertical height of the first opening.
    [0013] A maximum height of the displacement groove can be greater than a maximum height of the first tongue groove. The maximum height of the first tongue groove can be in the range of about 20% to about 75% of the maximum height of the displacement groove, preferably in the range of about 20% to about 50% of the maximum height of the displacement groove. displacement.
    [0014] An outer part of the displaceable tongue is preferably provided with a recess. The smaller opening of the first tongue groove and the thinner first tongue groove increases the strength of the locking system on the second edge with the first tongue groove. The thicker travel groove is preferably provided on an edge, ie the first edge, with more material available for the travel groove or a stronger material.
    [0015] The recess may comprise a first recess surface and a second recess surface, which are arranged at an obtuse angle to each other. The first recess surface of the recess may be a first surface configured to cooperate with the first tongue groove, preferably on a second surface, for locking in the vertical direction. An angle between an upper surface of the displaceable tongue and the first recessed surface may be in the range of about 5° to about 15°, preferably in the range of about 7° to about 8°. The recess and angle can provide the benefit of an increased locking force, as the first surface and second surface can be arranged at an angle that requires, in a locked position, an increased force to drive the displaceable tongue into the groove of displacement.
    [0016] The displaceable tongue is preferably of a longitudinal shape and an outer longitudinal edge of the displaceable tongue is preferably straight essentially along the entire longitudinal length of the tongue. A chamfer may be provided on at least one end of the longitudinal edge, on a short edge of the displaceable tongue, to facilitate assembly of the first and second panels by an angling movement.
    [0017] The recess preferably extends essentially along the entire longitudinal length of the displaceable tongue.
    [0018] The benefits of the embodiments of the invention may be more pronounced for thin panels, eg thinner than 6 mm. The panels can be in the range of about 3mm to about 10mm, preferably in the range of about 4mm to about 8mm, and most preferably in the range of about 4mm to about 6mm.
    [0019] The mechanical locking system may comprise a first locking strip, on the first or second edge, provided with a first locking element configured to cooperate for the horizontal locking with a first locking groove on the other among the first or the second edge.
    [0020] Since the height of the first opening is greater than the second height of the second opening, the first locking strip is preferably arranged on the first edge and the first locking groove on the second edge. An outer and lower part of the displaceable tongue is preferably provided with the recess.
    [0021] The panels can be rectangular and the mechanical locking system can comprise a second locking strip, on a third or fourth edge, provided with a second locking element configured to cooperate for horizontal locking with a locking groove on the other between the third or fourth edge of an adjacent third panel. The third or fourth edge is preferably provided with a second tongue configured to cooperate for vertical locking with a second tongue groove in the other of the third or fourth edge of an adjacent third panel. Each edge provided with a locking groove is preferably provided with a lower edge surface configured to cooperate with an upper surface of a locking strip on an adjacent panel. The lower edge surface is therefore preferably disposed in the foreground as the upper surface of the locking strip in the adjacent panel.
    [0022] An upper surface of the first locking strip is preferably provided in a foreground as an upper surface of the second locking strip. The mechanical locking system on the third and fourth edges is normally produced before the mechanical locking system on the first and second edges. If said upper surfaces are in the foreground or essentially in the foreground, the residues of the mechanical locking system on the third and fourth edges on the edge of the panels can be automatically removed. Residues are fine and can later come loose, for example, during packaging, transport or assembly.
    [0023] The mechanical locking system on the third and fourth edges can be configured to be mounted by an angulation movement.
    [0024] The mechanical locking system on the first and second edge can be configured to be mounted by a vertical movement.
    [0025] A second aspect of the invention is a set of essentially identical panels provided with a mechanical locking system comprising a displaceable tongue, which is arranged in a displacement groove on a first edge of a first panel and a first tongue groove on a second edge of a second panel. The displaceable pawl is configured to cooperate with the first pawl groove to lock in a vertical direction the first and second edges. The displaceable tongue comprises at least two foldable parts, wherein at least one of the foldable parts is provided with a lower and/or upper friction connection at a distance from the innermost part in the displacement groove of the foldable part. The distance can make it easier to arrange the displaceable pawl in the displacement groove. At least a portion of the displaceable tongue is preferably configured to be driven into the displacement groove during assembly of the first and second panels and returns to a position in which an outer part of the displaceable tongue cooperates with the first tongue groove for locking in the vertical direction.
    [0026] The displacement groove may comprise a top wall, a bottom wall and an inner wall that extends between the bottom wall and the top wall. The inner wall is preferably of a rounded shape or may comprise a flat section having a rounded section adjacent to the top and/or bottom wall. The rounded shape and the rounded section(s) increase the strength of the mechanical locking system. The benefits of this modality can be important for thin panels, eg thinner than 6 mm. The panels can be in the range of about 3mm to about 10mm, and preferably in the range of about 4mm to about 8mm.
    [0027] The upper friction connection is preferably configured to cooperate with a flat section of the upper wall. The upper friction connection may comprise a projecting part of the foldable part which extends above the remaining parts of the displaceable tongue. An upper surface of the displaceable tongue can be configured to be moved along the upper wall during assembly of the first and second panels. A lower surface of the displaceable tongue may be configured to be moved along the lower wall during assembly of the first and second panels.
    [0028] The lower friction connection is preferably configured to cooperate with a flat section of the lower wall. The lower friction connection may comprise a projecting part of the foldable part which extends below the remaining parts of the displaceable tongue.
    [0029] The innermost part of the folding part can be provided with an upper and/or lower chamfer. The top and/or bottom chamfer facilitates insertion of the displaceable tongue into the displacement groove.
    [0030] The displaceable tongue may be of a longitudinal shape and an outer longitudinal edge of the displaceable tongue is preferably straight essentially along the entire longitudinal length of the displaceable tongue. A chamfer may be provided on at least one end of the longitudinal edge, on a short edge of the displaceable tongue, to facilitate assembly of the first and second panels by an angling movement.
    [0031] An outer part of the displaceable tongue may be provided with a recess, which preferably extends essentially along the entire longitudinal length of the tongue. A first surface of the recess is preferably configured to cooperate with a second surface of the first tongue groove for locking in the vertical direction.
    [0032] The mechanical locking system may comprise a first locking strip, on the first or second edge, provided with a first locking element configured to cooperate with a first locking groove on the other among the first or second edge to lock in a horizontal direction.
    [0033] An offset groove size on the first edge may be larger than a size of the first tongue groove on the second edge. The first locking strip is preferably disposed on the first edge and the first locking groove on the second edge. An outer and lower part of the displaceable tongue is preferably provided with the recess.
    [0034] The displacement groove may have a first opening and the first tongue groove may have a second opening, wherein a first height of the first opening is preferably greater than a second height of the second opening.
    [0035] The mechanical locking system on the first and second edge can be configured to be mounted by a vertical movement.
    [0036] A third aspect of the invention is a set of essentially identical panels provided with a mechanical locking system comprising a displaceable tongue, which is arranged in a displacement groove on a first edge of a first panel and a first tongue groove on a second edge of a second panel. The displaceable pawl is configured to cooperate with the first pawl groove to lock in a vertical direction the first and second edges. At least a portion of the displaceable pawl is preferably configured to be driven into the displacement groove during assembly of the first and second panels and return to a position in which a portion of the displaceable pawl cooperates with the first pawl groove for locking in the direction vertical. The displaceable tongue comprises a first and third surfaces and the first tongue groove comprises a second and fourth surface. A first angle between the second surface and a front face of the second panel is greater than a second angle between the fourth surface and the front face. The first surface of the displaceable pawl is configured to cooperate with the second surface of the pawl groove under a first load on the mechanical locking system. The third surface of the displaceable pawl is configured to cooperate with the fourth surface of the pawl groove under a second load in the mechanical locking system. The first load can correspond to a load under normal condition and the second load can correspond to an increased load when, for example, a chair, sofa or bookcase is positioned on the first or second panel. The first angle can have the advantage that a small displacement of the displaceable tongue pushes the first and second panels together to the desired locked position, in which the front face of the second panel is essentially in the same vertical position as a front face of the first panel. The second angle can have the advantage that the third and fourth surfaces are capable of carrying a larger load and that the displaceable pawl is prevented from being pushed out of the first pawl groove. Another advantage of the second angle is that a height of an opening of the first tongue can be decreased. A decreased height can increase the strength of the mechanical locking system. The first angle can be in the range of about 30° to about 45° and the second angle can be in the range of about 10° to about 25°. The difference between the first angle and the second angle can be in the range of about 10° to about 35°.
    [0037] The mechanical locking system described under the first and second aspects may comprise the first, second, third and fourth surfaces described under the third aspect.
    [0038] The mechanical locking system on the first and second edges can be configured to be mounted by a vertical movement.
    [0039] The panels according to the first, second or third aspect can be floor boards, wall panels, ceiling panels, a furniture component or the like.
    [0040] A core of the panels according to the first, second or third aspect may be a wood-based core, preferably made of MDF, HDF, OSB, WPC, plywood or particle board. The core can also be a plastic core comprising thermoset plastic or thermoplastic, for example vinyl, PVC, PU or PET. The plastic core can comprise fillers. The thinner first tongue groove may be easier, for a panel with a layered core, such as a core comprising plywood, to arrange in a favorable position relative to the layers is the core.
    [0041] The front face of the panels according to the first, second or third aspect is preferably provided with a decorative layer and the rear face is preferably provided with a balancing layer.
    [0042] The edge of the panels, according to the first, the second or the third aspect, in which the parts of the locking system, such as the first and second locking strips, the first and second locking elements, the first and second locking grooves and the first and second tongue grooves can be made, can comprise core material. BRIEF DESCRIPTION OF THE DRAWINGS
    [0043] The present invention, by way of example, will be described in more detail with reference to the accompanying schematic drawings, which show embodiments of the present invention.
    [0044] Figures 1A-B show a known locking system with a displaceable tongue.
    [0045] Figures 2A-C show cross-sections of known locking systems with a separate, displaceable tongue.
    [0046] Figures 3A-B show cross-sections of known locking system with a separate and displaceable tongue.
    [0047] Figures 4A-B show cross-sections of panels according to embodiments of the invention.
    [0048] Figures 5A-B show cross-sections of panels according to an embodiment of the invention.
    [0049] Figures 6A-B show cross-sections of long and short edges of panels according to an embodiment of the invention.
    [0050] Figure 6C shows a cross-section of known panels.
    [0051] Figures 7A-B show panels according to an embodiment of the invention.
    [0052] Figures 8A-D show a displaceable tongue according to an embodiment of the invention.
    [0053] Figure 9A shows a cross-section of known panels.
    [0054] Figures 9B-C show cross-sections of embodiments of the invention.
    [0055] Figures 10A-B show cross-sections of embodiments of the invention.
    [0056] Figures 11A-C show cross-sections of embodiments of the invention.
    [0057] Figures 12A-B show cross-sections of an embodiment of the invention.
    [0058] Figures 13A-C show cross-sections of an embodiment of the invention.
    [0059] Figures 14A-B show a cross-section of an embodiment of the invention. DETAILED DESCRIPTION
    [0060] A known mechanical locking system for building panels, comprising a displaceable tongue 30 on a first edge of a first panel 1 and a first tongue groove 20 on a second edge of a second panel 1', is shown in Figures 1A to B. The displaceable pawl is configured to cooperate with the first pawl groove to lock in a vertical direction. The displaceable tongue 30 is a separate part and is made, for example, of plastic, and inserted into a displacement groove on the first edge of the first panel 1. The tongue is driven in a displacement groove during a vertical assembly of the first and the second edges of the first and second panels. The displaceable tongue returns and into a first tongue groove 20 on the second edge of the second panel 1' when the panels have reached a locked position. A third and a fourth edge of the panels are provided with a locking system, which allows mounting to an adjacent panel 1'' by an angulation movement, to obtain a simultaneous assembly of the first and second edges and of the third and fourth edges.
    [0061] Figures 2A-C and 3A-B show cross-sections of different modalities of the known displaceable tongue 30 during the assembly of a first and a second panels 1, 1'. The second panel 1' with the first tongue groove is displaced relative to the second panel with the displaceable tongue 30, which is driven in a displacement groove 40 by an edge of the second panel. The displaceable tongue 30 returns, and to the first tongue groove 20, when the panels have reached an assembled position, and locks the first and second panels vertically.
    [0062] Embodiments of the invention are shown in Figures 4A-B, 5A-B, 6A-B, 7A-B, 8A-D, 9B-C, 10A-B, 11A-C, Figures 12A-B and Figures 13A -Ç. A mechanical locking system is formed on a first and a second edge of essentially identical first and second panels 1, 1'. The mechanical locking system is configured to lock the first edge of the first panel to the second edge of the second panel, in a vertical and/or horizontal direction. One embodiment of the mechanical locking system allows the assembly of the first and second panels by a vertical displacement of the second edge of the second panel relative to the first edge of the first panel. The mechanical locking system is preferably formed by mechanical cutting, such as milling, drilling and/or sawing, of the edges of the panels and provided with a displaceable tongue 30, preferably made of plastic. The displaceable tongue can be foldable and provided with foldable projecting parts, such as the displaceable tongues disclosed in documents in WO2006/043893 and WO2007/015669. The displaceable tongue can also be configured to be locked by movement along the first and second edge, such as the displaceable tongues disclosed in documents in WO2009/116926 and WO200/8004960.
    [0063] Arrangements comprise a displaceable tongue 30 arranged in a displacement groove 40 on the first edge of the first panel 1. The displaceable tongue 30 cooperates with a first tongue groove 20, which is formed in the second edge of a second panel 1', for locking the first and second edge in a vertical direction. A first locking strip 6 with a vertically projecting first locking element 8 is formed on the first edge of the first panel. The first locking element 8 cooperates with a first locking groove 14, formed in the second edge of the second panel 1', for locking the first and the second edge in a horizontal direction. A lower edge surface of the second edge may be arranged in the foreground as a first upper surface of the first locking element. The lower edge surface can be configured to cooperate with the first upper surface to lock the first and second edges in a vertical direction. Figures 4A and 4B and Figures 5A and 5B show that the height 21 of the opening of the first tongue groove 20 is less than the height 41 of the displacement groove 40. Preferably, also the maximum height of the first tongue groove 20 is less than the maximum height 42 of the offset groove 40. The tongue groove and the offset groove can be provided with an orientation chamfer or rounding that is not included in the opening height or the maximum groove height when measuring heights of the grooves. Such a first tongue groove has the effect that the distance 23 between an underside of the second panel and the bottom of the first tongue groove can be increased and the distance 50 between the first tongue groove 20 and the locking groove 14 can be increased. The increased distance 50 between the first pawl groove 20 and the locking groove 14 increases the strength of the locking system. In order to also increase the distance and force, the displacement groove and the displaceable pawl can be angled, as shown, for example, in Figure 4B and in Figures 5A and 5B. The outer part of the displaceable tongue is preferably provided with a recess 31 so that the outer part can be displaced in the first tongue groove 20.
    [0064] With the first tongue groove 20 smaller, the distance 43 between a front face of the first panel and the displacement groove 40 can be increased and/or the thickness of the locking strip 6 can be increased with the same or the distance increased 50 between the first tongue groove 20 and the locking groove 14 to the same thickness as the first and second panel as shown in Figure 5B.
    [0065] The first locking groove can also be arranged on the first panel with the displacement groove. Such arrangements are preferably provided with a displaceable and flexible tongue, which is fixed to the parts of the displacement groove by means of glue. An inner part of the flexible and displaceable tongue is preferably glued to a bottom surface of the displacement groove. The inner portion can also be glued to an upper and/or lower surface of displacement groove 40.
    [0066] Arrangements comprise a set of essentially identical panels comprising the first panel 1, the second panel 1' and a third panel 1', as shown in Figure 7A. Each panel may be rectangular in shape and the mechanical locking system may comprise a second locking strip 16, on a third edge 5a, provided with a second locking element 18, and a second locking groove 24 on a fourth edge 5b , as shown, for example, in Figure 6A and Figure 7B. The second locking element 18 is configured to cooperate with the second locking groove 24 for locking the third and fourth edges in a horizontal direction. The mechanical locking system may comprise a second tongue groove 12 on a third edge 5a and a second tongue 13 on a fourth edge 5b. The second tongue and the second tongue groove are configured to cooperate in locking the third and fourth edges 5a, 5b in a horizontal direction. The fourth edge 5b is preferably provided with a lower edge surface configured to cooperate with a second upper surface of the second locking strip. The lower edge surface is therefore disposed in the foreground as the second upper surface of the second locking strip on the adjacent panel.
    [0067] Figure 7A shows an assembly of the second panel 1' to the first and to the third panel 1, 1'. The second panel 1' is angled around the fourth edge 5b of the second panel 1' to obtain simultaneously locking the fourth edge 5b of the second panel 1' to the third edge 5a of the third panel 1'' and the second edge 4b of the second panel 1 ' to the first edge 4a of the first panel 1'.
    [0068] The first upper surface 9 of the first locking strip is preferably provided in a first plane as the second upper surface 19 of the second locking strip 16. The mechanical locking system on the third and fourth edges 5a, 5b is normally produced before the mechanical locking system on the first and second edge 4a, 4b. If said first and second upper surfaces are in the foreground or essentially in the foreground, residues of the mechanical locking system on the third and fourth edges 5a, 5b, at the edges of the panel can be automatically removed. Residues are fine and can later come loose, for example, during packaging, transport or assembly. One embodiment is shown in Figure 7B with a first edge 2a between the fourth edge 5b and the first edge 4a, and a second edge 2b between the third edge 5a and the second edge 4b. Residues from the mechanical locking system on the fourth edge and on the first edge 2a are automatically removed by forming the mechanical locking system on the first edge. Residues from the mechanical locking system on the third edge and second edge 2b are automatically removed by forming the mechanical locking system on the second edge.
    [0069] Figure 6A shows a cross-section of the third edge of the first panel 1 and the fourth edge of the third panel 1'. The mechanical locking system at the third and fourth edges comprises the second tongue 13 at the fourth edge and the second tongue groove 12 at the third edge. The third edge is provided with the second locking strip 16, which projects from the third edge, with the second locking element 18, and the fourth edge is provided with the second locking groove. The second upper surface 19 of the locking strip 16 is in contact with the lower surface of the fourth edge to lock in a vertical direction. The mechanical locking system shown on the third and fourth edges is configured to be mounted and locked by an angulation movement. The second top surface is positioned in a horizontal plane 60. Figure 6B shows a cross-section of the first edge of the first panel and the second edge of the second panel. The first edge is provided with the first locking strip 6, which projects from the first edge, with a first locking element 8, and the second edge is provided with the first locking groove. The first upper surface 9 of the first locking strip is in contact with a lower surface of the second panel for locking in a vertical direction. Residues from the mechanical locking system, on the third edge and on the second edge and on the fourth edge and the first edge, can be automatically removed if said first and second upper surfaces are in the same horizontal plane 60. Residues not removed, such as debris 70 on the second edge shown in Figure 1B, is generally thin and will subsequently come loose, for example, during packaging, transport and assembly.
    [0070] The known mechanical locking system on the first and second edge, as shown in Figure 6C, is provided with a first upper surface 9 on a lower horizontal plane 61 than the second upper surface on the third and fourth edges . For the known mechanical locking system, an additional operation is required to remove the debris. The invention makes it possible to increase the thickness of the first locking strip and thus arrange the first and second upper surfaces in the same horizontal plane 60 without decreasing the distance 50 between the first locking groove 14 and the first tongue groove 20. effect that the strength of the mechanical locking system is increased.
    [0071] A preferred embodiment of the displaceable tongue 30 is shown in Figures 8A and 7D. The displaceable tongue comprises several folding parts 33. The folding parts are provided with a lower friction connection and an upper friction connection 35 at a distance from the innermost part of the folding part. The innermost part of the foldable parts 33 is provided with an upper bevel and an inner bevel 39. The tongue is of a longitudinal shape and an outer edge of the displaceable tongue is preferably straight essentially along the entire longitudinal length of the displaceable tongue. An outer part 38 of the displaceable tongue is provided with a recess 31, which preferably extends essentially along the entire longitudinal length of the tongue. A first recess surface 81 of the recess is configured to cooperate with a first surface of the first tongue groove for locking in the vertical direction. A chamfer 37 is provided at each end of the longitudinal edge, on a short edge of the displaceable tongue, to facilitate assembly of the first and second panels by an angled movement. The tongue comprises a groove 34 in each foldable part 33. At least a part of the foldable part 33 is pushed into the groove 34 during assembly.
    [0072] The recess 31 may comprise a second recess surface 85, which is disposed at an obtuse angle to the first recess surface 81. An angle between an upper surface of the displaceable tongue and the first recess surface 81 may be situated in the range from about 5° to about 15°, preferably in the range from about 7° to about 8°.
    [0073] The displaceable tongue is preferably produced by injection molding and Figure 8A shows the casting ports on the short edges of the displaceable tongue.
    [0074] Figure 8C shows displaceable pawl 30 disposed in displacement groove 40 in a position during an assembly when the pawl is pushed into the displacement groove. The displacement groove 40 comprises a top wall, a bottom wall and an inner wall that extends between the bottom wall and the top wall. The inner wall is of a rounded shape. The inner wall may, as an alternative, comprise a flat section provided with a rounded section adjacent to the top and/or bottom wall. The top friction connection is configured to cooperate with a flat section of the top wall. The bottom friction connection is configured to cooperate with a flat section of the bottom wall. An upper surface of the displaceable tongue can be configured to be moved along the upper wall during assembly of the first and second panels. A lower surface of the displaceable tongue may be configured to be moved along the lower wall during assembly of the first and second panels.
    [0075] Figure 9A shows another known mechanical locking system and Figure 9B and 9C shows an improved version according to the embodiments of the invention. The displaceable tongue 30 is provided with a recess on the outside and the first tongue groove 20 is made smaller. The thickness of the locking strip 6 is increased and a bottom of the displacement groove 40 is provided with rounded edges. Figure 9C shows that the upper and lower outer part of the displaceable tongue can be provided with a recess. Particularly for floorboards of light material, for example, which comprise a plastic core, such as PVC, the joint is made stronger if both the upper and lower outer part of the displaceable tongue are in contact with the first tongue groove.
    [0076] Additional embodiments of the invention are shown in Figures 10A and 10B. The benefits of the smaller first tongue groove 20 and the displaceable tongue 30 having a recess on the outside are in the embodiment in Figure 10A used to make the locking strip 6 thicker. Figure 10B shows an embodiment with a displacement groove 40 provided with rounded edges and a locking groove 14 and locking element 8 provided with chamfered surfaces so as to also increase the strength of the locking system.
    [0077] Figure 11A shows a modality that is of the type disclosed in the document no. WO2011/127981 with the displaceable tongue 30 arranged on the edge of the panel provided with the locking groove. The indentation on the outside edge of the displaceable pawl is shown on the edge of the bottom displacementable pawl, but the indentation can also be provided on the top and outside edge of the movable pawl.
    [0078] Figures 11B-C show embodiments provided with a projecting part 51 on the underside of the second edge. The projecting part 51 is configured to cooperate with a recess 52 on the upper side of the first locking strip and with the first locking element 8. Such configurations can increase the thickness of an inner part of the locking strip and the strength of the locking system. mechanical.
    [0079] Figures 12A-B show an embodiment comprising a displaceable pawl 30, which is configured to be locked by a displaceable element 31. The displaceable element may comprise a wedge-shaped element (not shown) that drives the displaceable pawl 30 in the first tongue groove 20 for the vertical locking of the first and second edges. The displaceable element can be moved by pushing the displaceable element in 32 the displacement groove 40 along the second edge or by pulling the displaceable element along the second edge and out of the displacement groove 40. Figure 12A shows the embodiment in the unlocked position and Figure 12B shows the modality in a locked position.
    [0080] Figures 13A-C show a displaceable tongue comprising three sections, an inner section 30b, an outer section 30a and an intermediate section 30c connected to each other. The sections are preferably formed from a plastic material. The outer and inner sections 30a and 30b are formed of a more rigid material than the intermediate section which provides the greatest flexibility to the flexible tongue. The middle section can be a rubber-like material and can also be used as a friction connection to prevent the flexible tongue from falling out of the groove 40 after connection to a panel edge. Flexible middle section 30c is preferably located at a lower part of the flexible tongue. The intermediate section 30c comprises an upper part 31a which is compressed during locking and a lower part 31b which expands during locking. The outer part 30a preferably protrudes out of a vertical plane VP which cuts the adjacent joint upper edges of the panels 1, 1'. The locking system allows locking with low horizontal separating forces during locking. The vertical extent of the tongue groove 20 may be less than 0.5 times the vertical extent of the displacement groove 40. The inner part 30b comprises a fastening edge 32 which can be located on an upper edge or a lower part of the tongue. flexible.
    [0081] The flexible tongue can also be formed with only two sections, preferably without the stiffer inner section 30b. An outer section 30a can be connected to an inner section 30d which can have the same function as the intermediate section 30c described above and flexibility can be obtained by compressing and extending the upper and lower parts of the flexible inner section when the outer section turns. inside. This allows the displacement groove to be smaller. Such a two-section latch can also be used to lock the panel in accordance with the principles shown in Figures 2A to 2C. The outer part 30a can point downwards when the flexible tongue 30 is located on a panel edge comprising a strip 6 (strip panel) and a locking element 8 and the flexible inner part 31d can be located in an upper part of the flexible tongue 30. The outer part 30a may point upwards when the flexible tongue 30 is connected to a panel edge comprising a locking groove (folding panel) and the flexible inner part 30d can be located at a lower part of the tongue flexible 30.
    [0082] One modality of a mechanical locking system is shown in Figure 14A and Figure 14B shows an enlargement of the circled part. The mechanical locking system comprises a displaceable tongue 30, which is disposed in a displacement groove 40 in a first edge of a first panel 1 and a first tongue groove 20 in a second edge of a second panel 1'. The displaceable pawl 30 is configured to cooperate with the first pawl groove to lock in a vertical direction the first and second edges. At least a portion of the displaceable tongue is preferably configured to be driven into the displacement groove during assembly of the first and second panels and return to a position in which a portion of the displaceable tongue 30 cooperates with the first tongue groove 20 for locking in the vertical direction. The displaceable tongue 30 comprises a first and third surfaces 81.83 and the first tongue groove comprises a second and fourth surface 82.84. A first angle between the second surface 82 and a front face of the second panel 1' is greater than a second angle between the fourth surface 84 and the front face. The first surface of the displaceable pawl is configured to cooperate with the second surface of the pawl groove under a first load on the mechanical locking system. The third surface of the displaceable pawl is configured to cooperate with the fourth surface of the pawl groove under a second load in the mechanical locking system. The first load corresponds to a load under normal condition and the second load corresponds to an increased load when, for example, a chair, sofa or bookcase is positioned on the first or second panels. Figures 14A and 14B show the mechanical locking system under the first load. The first angle can have the advantage that a small displacement of the displaceable tongue pushes the first and second panels together to the desired locked position, in which the front face of the second panel 1' is essentially in the same vertical position as a front face of the first panel 1. The second angle can have the advantage that the third and fourth surfaces are capable of carrying a larger load and that the displaceable tongue is prevented from being pushed out of the first tongue groove. The first angle can be in the range of about 30° to about 45° and the second angle can be in the range of about 10° to about 25°. The difference between the first angle and the second angle can be in the range of about 10° to about 35°. An outer part of the displaceable tongue 30 is preferably provided with the recess 31 described above and the tongue groove is preferably smaller in height and depth than the displacement groove.
    权利要求:
    Claims (11)
    [0001]
    1. Set of essentially identical panels (1, 1'), such as building panels, provided with a mechanical locking system comprising a displaceable tongue (30), which is arranged in a displacement groove (40) on a first edge of a first panel (1), and a first tongue groove (20) on a second edge of an adjacent second panel (1'), the displaceable tongue (30) being configured to cooperate with the first tongue groove (20 ) for locking the first and second edge in a vertical direction, wherein the displacement groove comprises a first opening, and the first tongue groove comprises a second opening, wherein at least a part of the displaceable tongue is configured to be driven into the displacement groove during assembly of the first and second panels and returns to a position in which an outer part of the displaceable pawl cooperates with the first pawl groove for locking in the vertical direction, in which a the upper surface of the displaceable tongue is configured to be moved along an upper wall of the displacement groove during assembly of the first and second panels, and wherein a lower surface of the displaceable tongue is configured to be moved along a lower wall of the displacement groove during the assembly of the first and second panels, characterized in that the first opening and the second opening are horizontally open, and the vertical height (41) of the first opening is greater than the vertical height (21) of the second opening, an outer part (38) of the displaceable tongue is provided with a recess (31), the recess extending essentially along the entire longitudinal length of the displaceable tongue, the recess (31) comprising a first surface of recess (81) and a second recess surface (85), which are arranged at an obtuse angle to each other, and the first recess surface. The portion (81) of the recess (31) is configured to cooperate with the first tongue groove for locking in the vertical direction.
    [0002]
    2. Assembly according to claim 1, characterized in that a maximum height of the displacement groove (42) is greater than a maximum height of the first tongue groove.
    [0003]
    3. Assembly according to claim 1 or 2, characterized in that an angle between an upper surface of the displaceable tongue and the first recess surface (81) is in the range of from about 5° to about 15° , preferably in the range of about 7° to about 8°.
    [0004]
    4. Assembly according to any one of the preceding claims, characterized in that the thickness of the panels is in the range of about 3 mm to about 10 mm, and preferably in the range of about 4 mm to about 8 mm.
    [0005]
    5. Assembly according to any one of the preceding claims, characterized in that the mechanical locking system comprises a first locking strip (6), on the first or second edge, provided with a first locking element (8) configured to cooperate for horizontal locking with a first locking groove (14) on the other of the first or second edge.
    [0006]
    6. Assembly according to claim 5, characterized in that the first locking strip is arranged on the first edge, and an outer and lower part of the displaceable tongue (30) is provided with a recess (31).
    [0007]
    7. Assembly according to claim 5 or 6, characterized in that the panels are rectangular, and the mechanical locking system comprises a second locking strip (16), on a third or fourth edge, provided with a second locking element (18) configured to cooperate for horizontal locking with a second locking groove (24) in the other of the third or fourth edge of an adjacent third panel (1").
    [0008]
    8. Assembly according to claim 7, characterized in that a first upper surface (9) of the first locking strip is arranged in the same plane (60) as a second upper surface (19) of the second locking strip (16).
    [0009]
    9. Assembly according to claim 7 or 8, characterized in that the mechanical locking system on the third and fourth edge is configured to be mounted by an angulation movement.
    [0010]
    10. Set of panels, according to any one of the preceding claims, characterized in that the mechanical locking system, on the first and second edge, is configured to be mounted by a vertical movement.
    [0011]
    11. Set of panels according to any one of the preceding claims, characterized in that the panels are floorboards comprising a wood fiber-based core, such as HDF, or a core comprising thermoplastic, such as PVC.
    类似技术:
    公开号 | 公开日 | 专利标题
    BR112015031238B1|2021-08-24|PANEL ASSEMBLY WITH A MECHANICAL LOCKING SYSTEM
    US10480196B2|2019-11-19|Building panel with a mechanical locking system
    CN103732841B|2016-09-21|Mechanical locking system for floor panel
    ES2298664T5|2011-05-04|A SET OF SOIL PANELS.
    BR112021002459A2|2021-05-04|panel assembly with a mechanical locking device
    KR102058459B1|2019-12-23|Mechanical locking system for floor panels
    BR112016014161B1|2020-12-01|panel for furniture
    BR112014000016B1|2020-12-22|mechanical locking system for floor panels
    KR20150086489A|2015-07-28|Mechanical locking system for floor panels
    BR112021011542A2|2021-08-31|SET OF PANELS THAT CAN BE VERTICALLY UNLOCKED, METHOD AND DEVICE FOR THIS
    PT1863984E|2012-02-06|Flooring system comprising mechanically connectable floorboards
    BR112014000516B1|2020-12-08|construction panels provided with mechanical locking system
    BR112014002872B1|2020-07-28|construction panels provided with a locking system
    KR20140144710A|2014-12-19|Building panel with a mechanical locking system
    BR112016015502B1|2021-10-26|PANELS COMPRISING A MECHANICAL LOCKING DEVICE AND ASSEMBLY PRODUCT COMPRISING THE PANELS
    BR112014023967B1|2021-02-02|construction panels provided with a mechanical locking system
    同族专利:
    公开号 | 公开日
    CA3140669A1|2014-12-31|
    MX2015017657A|2016-03-03|
    EP3014034A1|2016-05-04|
    SI3014034T1|2019-12-31|
    ES2759424T3|2020-05-11|
    CA2913392A1|2014-12-31|
    EA032211B1|2019-04-30|
    EP3014034B1|2019-10-02|
    MX367290B|2019-08-13|
    CN110259027A|2019-09-20|
    ZA201600456B|2017-04-26|
    JP2016523325A|2016-08-08|
    EA201690068A1|2016-05-31|
    PH12015502626A1|2016-03-07|
    HUE045941T2|2020-01-28|
    US10017948B2|2018-07-10|
    US20170081860A1|2017-03-23|
    KR20160023780A|2016-03-03|
    PT3014034T|2019-11-29|
    UA120253C2|2019-11-11|
    US20190271165A1|2019-09-05|
    EP3613919A1|2020-02-26|
    CN105324544A|2016-02-10|
    AU2014299350B2|2018-01-04|
    WO2014209213A1|2014-12-31|
    JP6397009B2|2018-10-10|
    CN110259027B|2021-09-14|
    CN105324544B|2019-06-11|
    DK3014034T3|2019-10-28|
    CL2015003732A1|2016-09-23|
    KR102276876B1|2021-07-12|
    AU2014299350A1|2015-12-17|
    CA2913392C|2022-01-18|
    PL3014034T3|2020-04-30|
    LT3014034T|2019-11-11|
    US20150000221A1|2015-01-01|
    PH12015502626B1|2016-03-07|
    HRP20192110T1|2020-02-21|
    US10352049B2|2019-07-16|
    BR112015031238A2|2017-07-25|
    US20210310257A1|2021-10-07|
    EP3014034A4|2017-02-22|
    US11066835B2|2021-07-20|
    SA515370292B1|2019-09-09|
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    法律状态:
    2020-05-26| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2021-07-06| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-07-20| B350| Update of information on the portal [chapter 15.35 patent gazette]|
    2021-08-24| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 26/06/2014, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    SE1350783-5|2013-06-27|
    SE1350783|2013-06-27|
    SE1351323|2013-11-08|
    SE1351323-9|2013-11-08|
    PCT/SE2014/050792|WO2014209213A1|2013-06-27|2014-06-26|Building panel with a mechanical locking system|
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