Multi-thickness clamping piece

Abstract

An assembly comprises a first building element (10), a first building panel (20) and a second building panel (20 '), and a coupling element for assembling the first building panel (20) and the second building panel (20') to the first building element (10). The coupling element (2) has a locking portion (3, 4) configured to cooperate with a first mechanical locking device (30) of a first edge (11) or a second edge (12) of a first building element (10). The coupling element (2) also has a connecting portion (5) configured to cooperate with a second mechanical locking device (50) of the edge (21, 22) of the building panel (20, 20 '). The second mechanical locking device (50) is configured for locking the first and second building panels (20, 20 ') and comprises a locking tongue (51) and a tongue groove (52) having a locking strip (53) comprising an upper surface (57).

Description

Technical Field

[0001] The present disclosure relates to a set comprising a connecting element, a building element and at least two building panels. Background Art

[0002] Known systems for assembling building panels usually comprise various types of fastening rails mounted to a fixed structure, such as a wall. The wall panels to be assembled are usually arranged to extend transversely to the rails. Mounting devices are fixedly attached to the rails or the wall panels and provide a connection between the rails and the wall panels.

[0003] WO 2020 / 197457 discloses an assembly comprising a connecting element, a first building element, a first building panel and a second building panel, wherein the connecting element is configured for assembling the first building panel and the second building panel to the first building element.

[0004] However, known systems have deficiencies in terms of system flexibility and / or system compatibility with different panels.Therefore, there is room for improvement in this area of ​​technology. Summary of the invention

[0005] It is an object of the present disclosure to at least partially alleviate at least some of the disadvantages of the prior art. It is an object of the present disclosure to provide an assembly for assembling building panels and building elements using a coupling element, wherein the coupling element can be used with building panels of different thicknesses. It is an object of the present disclosure to provide an assembly comprising building panels, a coupling element and a building element having a more versatile coupling element.

[0006] According to one aspect of the present disclosure, there is provided an assembly comprising a coupling element, a first building element, a first building panel and a second building panel. The coupling element is configured for assembling the first building panel and the second building panel to the first building element. The coupling element comprises at least one locking portion protruding along a first axis. The locking portion may extend along a second axis. The locking portion is configured to cooperate with a first mechanical locking device of a first edge or a second edge of the first building element, both extending along the second axis, so as to obtain an assembled state with the first edge or the second edge by means of a folding displacement of the coupling element around the second axis, thereby locking the coupling element against displacement along the first axis and a perpendicular third axis, both of which are orthogonal to the second axis. The coupling element comprises a connecting portion protruding in a direction along the third axis and configured to cooperate with a second mechanical locking device of a first edge of the first building panel and an opposite second edge of the second building panel. The connecting portion extends in a direction along the first axis. The second mechanical locking device is configured to lock the first and second panels in the direction of the third axis by means of a folding displacement of the second panel around its second edge, the third axis being transverse to the plane of the front surfaces of the first and second building panels. The second mechanical locking device comprises a locking tongue and a tongue groove. The tongue groove has a locking strip comprising an upper surface. In the assembled state, the connecting portion comprises a first portion protruding along the third axis and a subsequent second portion protruding along the second axis. The second portion is configured to engage with a connecting surface of a first building panel. The connecting surface of the first building panel is closer to the rear surface of the first building panel than the portion of the upper surface of the locking strip closest to the rear surface. Therefore, the arrangement of the connecting surface of the first building panel is not limited by or closely related to the thickness of the locking strip of the first building panel. In addition, the connecting surface can be independent of the thickness of the panel, thereby allowing the same size of connecting elements to be used with building panels of different thicknesses.

[0007] The locking strip may be located on the side of the tongue groove closer to the rear surface.

[0008] The second mechanical locking means may comprise a locking groove, and the locking bar may comprise a locking element. The locking groove may be configured to cooperate with the locking element to lock in the direction of the second axis.

[0009] The locking strip may include a connection surface, or the locking groove may include a connection surface. The connection surface may therefore be a part of a convex wall / shelf, a recess or a groove, such as a convex wall or a groove. The locking strip may include a convex wall, which includes a connection surface. The locking groove may include a groove, which includes a connection surface. The connection surface may be a convex wall or a groove, such as a groove. The connection surface may be a convex wall. The connection surface may be planar. The connection surface may be planar and parallel to the first axis and / or the second axis, preferably parallel to the plane of the first axis and the second axis. The connection surface may extend along the plane of the first axis and the second axis.

[0010] In the assembled state, the first part of the connection part may protrude into a locking groove of the first or second building panel.In the assembled state, the first part of the connection part may protrude into a locking groove of the second building panel.

[0011] The coupling element may also include a protruding member configured to cooperate with the first panel. The protruding member may be configured to facilitate the relative positioning between the coupling element and the first panel. In particular, the protruding member may be configured to facilitate the relative positioning between the connecting portion and the first edge of the first panel. The relative positioning may be achieved by displacing and / or biasing a portion of the first edge and a portion of the connecting portion (e.g., the first portion and / or the second portion) toward each other. Thus, it is helpful to position the coupling element in a desired position so that the coupling element does not constitute a mechanical obstacle when the second panel is assembled with the first panel.

[0012] Another advantage of providing a protruding member according to embodiments herein is that the coupling element may be prevented from becoming disengaged during assembly of, for example, the second building panel.

[0013] Yet another advantage of providing a protruding member according to embodiments herein is that displacement of the coupling element along the second axis may be prevented.

[0014] A further advantage of providing a protruding member according to embodiments of the present invention is that the coupling element can thereby be configured to accommodate slightly different thicknesses of the first panel. For example, the distance between the surface of the (continuous) second portion of the connecting portion and the rear surface of the first panel may not be equal to the distance between the second portion and the main plane and / or body of the coupling element. For example, there may be a play P between the rear surface and the main plane (V1), so that in the absence of the protruding member, the coupling element and the first panel may be displaced relative to each other to reach an undesirable relative position.

[0015] The protruding member may be provided on the same side of the coupling element as the connecting portion.

[0016] The protruding member may extend from the body of the coupling element in a direction towards or away from the connecting portion.

[0017] At least a portion of the protruding member may be displaceable, for example by means of flexible displacement.

[0018] The protruding member may be provided near the connecting portion.

[0019] The protruding member may be provided between the two locking portions.

[0020] The protruding member may be configured such that, when the building element is in an assembled state with the first building panel by means of the coupling element, the protruding member is arranged below the connecting portion along the first axis.

[0021] At least a portion of the protruding member may be elastic.

[0022] The protruding member may be configured such that, in the assembled state of the coupling element with the first building element, the protruding member protrudes from a main plane of the front surface of the coupling element.

[0023] The protruding member may be configured to mate with a rear surface of the first panel.

[0024] The protruding member may be configured for enabling relative positioning of at least a portion of the coupling element (eg the connecting portion) and at least a portion of the first panel (eg the first edge).

[0025] The protruding member may be configured such that, in an assembled state of the coupling element with the first panel, the protruding member is biased against the rear surface of the first building panel.

[0026] The protruding member may be configured such that, in an assembled state of the coupling element with the first panel, the protruding member biases the connection portion in a direction along the third axis, eg in a distal direction, towards the first building panel.

[0027] The protruding member may be configured to overlap a play between a major plane of the front surface of the coupling element and the rear surface of the first panel.

[0028] The protruding member is configured to cooperate with a groove provided in the rear surface of the first panel in an assembled state of the coupling element and the first panel, thereby locking or preventing the connection portion and the first edge of the first panel from being separated from each other in a direction along the second axis.

[0029] The protruding member comprises at least one portion which is displaceable relative to the second connection means, for example in a direction along the third axis.

[0030] The protruding member comprises an attachment portion and at least one free portion, preferably the at least one free portion is an end portion.

[0031] The protruding member includes at least one portion protruding along the second axis in a direction toward or away from the connecting portion, the portion extending from the attachment portion to the free portion.

[0032] At least one portion of the protruding member, preferably the free portion, comprises a structure configured to facilitate friction, such as friction between the at least one portion and an adjacent surface, such as the rear surface of the first panel. The structure configured to facilitate friction may be that the free portion comprises a pointed portion, a rough portion, is divided into a plurality of smaller contact points, or is made of rubber.

[0033] The tongue groove may be located at a first edge of the first building panel and the locking tongue of the second mechanical locking device may be located at an opposing second edge of the second building panel.

[0034] According to one embodiment, the locking portion extends along the second axis.

[0035] According to one embodiment, the connecting portion extends in a direction along the first axis.

[0036] The connecting portion may be shaped like a hook. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Embodiments of the inventive concept will be described in more detail, by way of example, with reference to the accompanying schematic drawings, which show several embodiments of the inventive concept.

[0038] Figure 1 is a schematic diagram of components according to an embodiment of the inventive concept.

[0039] Figure 2 is a perspective view of an assembly according to one embodiment.

[0040] Figures 3A-3D yes Figure 1 Top view of an embodiment of a detail of a coupling element and a construction element.

[0041] Figure 4A is a side view of a first building panel according to an embodiment, the first building panel being arranged in an assembled state with a first building element by means of coupling elements.

[0042] Figure 4B yes Figure 4A Side view of an embodiment of the invention, wherein the second panel is assembled to the first panel by means of a folding displacement.

[0043] Figure 5A is a side view of a first building panel according to an embodiment, the first building panel being arranged in an assembled state with a first building element by means of coupling elements.

[0044] Figure 5B yes Figure 5A Side view of an embodiment of the invention, wherein the second panel is assembled to the first panel by means of a folding displacement.

[0045] Fig. 6A A coupling element is shown in an assembled state with a building element, a first panel and a second panel according to an embodiment.

[0046] Figure 6B A coupling element is shown in an assembled state with a first panel and a second panel according to an embodiment.For the sake of clarity, building elements are not shown.

[0047] Figure 6C A coupling element is shown in an assembled state with a first panel and a second panel according to an embodiment.For the sake of clarity, building elements are not shown.

[0048] Fig. 7A A coupling element is shown in an assembled state with a building element, a first panel and a second panel according to an embodiment.

[0049] Figure 7B A coupling element is shown in an assembled state with a first panel and a second panel according to an embodiment.For the sake of clarity, building elements are not shown.

[0050] Figure 7C A coupling element is shown in an assembled state with a first panel and a second panel according to an embodiment.For the sake of clarity, building elements are not shown.

[0051] Figures 8A-8I An isometric view of a coupling element according to one embodiment is shown.

[0052] Figures 9A-9I An isometric view of a coupling element according to one embodiment is shown.

[0053] Fig.10 A cross-sectional view of a coupling element in an assembled state with a first panel is shown according to an embodiment.

[0054] Fig.11 Shown is a side view of a coupling element according to one embodiment.

[0055] Figures 12A-12D Isometric views of different embodiments of coupling elements are shown. DETAILED DESCRIPTION

[0056] Figure 1 , 2An embodiment of an assembly 1 is shown, comprising one or more coupling elements 2, 2', one or more building elements 10, 10', 10" which may be arranged in the shape of building panels, one or more building panels 20, 20' which may be wall panels.

[0057] The first building element 10 may have four edges 11, 12, 13, 14. The first building panel 20 may have four edges 21, 22, 23, 24.

[0058] The first building element 10 may comprise, at least along a portion of the edge, first mechanical locking means 30 for horizontally and vertically locking an adjacent building element, the adjacent building element comprising said first mechanical locking means 30, such as Figures 3A-3D The building panels 20, 20' may comprise, at least along a portion of the edge, a second mechanical locking device 50 for horizontally (Y1) and vertically (Z1) locking adjacent building panels, the adjacent building panels comprising the second mechanical locking device 50, such as Figure 4A-4B shown.

[0059] The first mechanical locking device 30 and the second mechanical locking device 50 may be configured to cooperate so that a first building element 10 including the first mechanical locking device 30 may be arranged in an assembled state with a second building element 20' including the second mechanical locking device 50, thereby locking the first element 10 and the second element 20 in horizontal and vertical directions.

[0060] Hence, according to an embodiment, the first building element 10 and the first building panel 20 may comprise the same mechanical locking means.

[0061] According to an embodiment, the first building element 10 and the first building panel 20 may comprise substantially the same or similar panels.

[0062] According to one embodiment, the assembly allows the coupling element 2 to be used for panels of different thicknesses. One size of coupling element may be suitable for building panels with a thickness of 5-7 mm, which may be polymer-based materials, and another size of coupling element may be suitable for building panels with a thickness of 7-14 mm (e.g. 8-14 mm), which are typically wood-based materials. Polymer-based building panels may be based on thermoplastic materials, such as polyvinyl chloride.

[0063] The coupling element 2 may be made of any suitable material, such as metal, composite material or polymer-based material, such as plastic, such as selected from polyacrylate, polyamide, polyoxymethylene (POM), polypropylene, vinyl or polyvinyl chloride (PVC). The coupling element may be a thermosetting material or a thermoplastic material.

[0064] exist Figure 1and 2 In the embodiment shown, the assembly 1 is arranged on a wall 80 with the building panels 20, 20' arranged with their respective longitudinal axes extending in a horizontal direction H, however other configurations are possible within the scope of the present disclosure.

[0065] Reference Figure 1 and 2 In the assembled state of the first panel 20, the first edge 21 of the first panel 20 may constitute the upper edge of the first panel 20, such as Figure 1 shown.

[0066] In the assembled state of the first panel 20 , the second edge 22 of the first panel 20 may constitute a lower edge of the first panel 20 .

[0067] In the assembled state of the first building element 10, the first edge 11 of the first building element 10 can constitute the right edge of the first building element 10, for example Figure 1 and 2 However, other configurations are possible within the scope of the present disclosure, such as a left edge.

[0068] In the assembled state of the first building element 10, the second edge 12 of the first building element 10 may constitute the left edge of the first building element 10, such as Figure 1 and 2 However, other configurations are possible within the scope of the present disclosure, such as a right side edge.

[0069] As used herein, the term "edge" refers to an outer edge extending between a front surface 15, 25 and a rear surface 16, 26 of a building element or building panel, such as the first building element 10 or the first building panel 20, in the thickness direction D of the building element or building panel. Thus, these edges may face in a direction away from the building element 10 along the first axis X1 and / or along the front surface 15, such as Figures 3A-3D shown.

[0070] The first building element 10 may be a joist or the like, having an outer edge facing in a direction along the front surface 15, and comprising first mechanical locking means 30 for horizontal and vertical locking with other building elements comprising the same locking system 30, preferably by folding.

[0071] The building element may be a building panel.

[0072] The building panel, first panel 20, 20' may have a respective front surface 25 and rear surface 26. The front surface 25 may be a proximal surface and / or a front surface. The front surface may be a surface intended to be visible when the panel is configured as part of a wall or floor. The front surface may be a decorative surface and may include a decorative layer, such as a finish layer intended to be visible.

[0073] The rear surface 26 may be a surface that is intended not to be visible when the panel is configured as part of a wall or floor. The rear surface may include a balancing layer to account for movement in the front surface 25.

[0074] The building panels 20, 20' and optionally the building elements 10, 10' may comprise a core made of or comprising any suitable material, for example wood, MDF, HDF, foam, polymer, thermoplastic, thermoset, PVC, MgO or any suitable material. Preferably, the core is made of a material suitable for machining, for example cutting, such as cutting by means of a rotating tool. The first and / or second mechanical locking means 30, 50 may be formed in the core of the building element, for example by cutting using a rotating tool which is substantially stationary while the building element is conveyed past the rotating tool, thereby forming at least a part of the mechanical locking means in one or more of the edges 11, 12 of the building element and the edges 21, 22 of the building panels.

[0075] When assembled with the edge of a building element, the coupling element 2 can be slid along the edge of the building element.

[0076] refer to Figures 3A-4BAccording to one embodiment, the assembly comprises a coupling element 2, a first building element 10, a first building panel 20 and a second building panel 20'. The coupling element 2 is configured for assembling the first building panel 20 and the second building panel 20' to the first building element 10. The coupling element may have a body 8 and a front surface 9. The front surface may extend in a plane X1-Z1 and face in a direction along a third axis Y1. The coupling element 2 has at least one locking portion 3, 4 protruding along the first axis X1. The locking portion 3, 4 is configured to cooperate with a first mechanical locking device 30 of a first edge 11 or a second edge 12 of the first building element 10. The first and second edges of the building element extend along the second axis Z1. By cooperation between the at least one locking portion 3, 4 and the first edge 11 or the second edge 12 of the first building element 10, an assembled state may be provided by means of a folding displacement of the coupling element 2 about the second axis Z1, thereby locking the coupling element 2 to prevent displacement along the first axis X1 and the perpendicular third axis Y1, both of which are orthogonal to the second axis Z1. The building element 10 , 10 ′ is usually attached vertically to the wall 80 and the coupling element 2 can be connected to the building element 10 , 10 ′ by a folding displacement F.

[0077] The first mechanical locking device 30 can be a tongue-and-groove type configuration. A tongue-and-groove type configuration refers to a locking device that locks two edges to each other, i.e., one side has a locking tongue and the other side has a tongue groove. The locking tongue and the tongue groove can be configured to cooperate with each other. The side with the tongue groove can also have a locking strip, which can have a locking element. The locking element can be configured to cooperate with the locking groove. If the locking device 30 is a tongue-and-groove type configuration, the at least one locking part 3, 4 can include a locking tongue 31 or a tongue groove 32.

[0078] If the locking part 3, 4 (here 3) comprises a locking tongue 31 (see e.g. Figure 3A 3C), the locking tongue 31 may be configured to cooperate with the tongue groove 62 of the first edge 11 or the second edge 12 of the building element 10. The first edge 11 or the second edge 12 of the building element may also have a locking strip 63. The locking strip 63 may include a locking element 64. In the assembled state, the locking element 64 may protrude from the locking strip 63 in the direction along the third axis Y1. The locking element 64 may be configured to cooperate with, preferably contact, a locking surface 36 in a locking groove 35 included in the locking part 3, 4. The locking surface 36 may be located in a recess 35b in the locking groove 35.

[0079] If the locking part 3, 4 (here 4) has a tongue groove 32 (see for example Figure 3B3D), the tongue groove 32 may be configured to cooperate with the locking tongue 61 of the first edge 11 or the second edge 12 of the building element 10. The locking part 3, 4 may also have a locking strip 33. The locking strip 33 may include a locking element 34. The locking element 34 may protrude from the locking strip 33 in the direction along the third axis Y1. The locking element 34 may be configured to cooperate with, preferably contact, a locking surface 66 in a locking groove 65 included in the locking part 3, 4. The locking surface 66 may be located in a recess 65b in the locking groove 65.

[0080] According to some embodiments, the coupling element 2 comprises a first locking portion 3 and a second locking portion 4. The first locking portion 3 and the second locking portion 4 may protrude on opposite sides of the coupling element along the first axis X1. The purpose of such a solution may be that one coupling element may be compatible with both the first edge 11 and the second edge 12 of the first building element, so that only one type of coupling element is needed to assemble an assembly comprising a plurality of building elements and building panels.

[0081] The first locking part 3 may have a locking tongue 31 and a locking groove 35, while the second locking part 4 may have a tongue groove 32 and a locking strip 33 with a locking element 34. Thus, one coupling element may be configured to cooperate with either the first edge 11 and the second edge 12 of the building element.

[0082] Figure 4A and 4BA side view is shown of how a coupling element 2 cooperates with a second mechanical locking device 50 according to an embodiment. The figure shows a coupling element 2 which has been assembled with a building element 10. The coupling element 2 comprises a connecting portion 5 protruding in a direction along a third axis Y1. The coupling element is configured to cooperate with a second mechanical locking device 50 of a first edge 21 of a first building panel 20 and an opposite second edge 22 of a second building panel 20'. The second mechanical locking device 50 is configured for locking the first panel 20 and the second panel 20' in the direction of the third axis Y1 transverse to the plane of the front surfaces 25, 25' by a folding displacement F of the second panel (20') about its second edge (22'). The second mechanical locking device 50 comprises a locking tongue 51 and a tongue groove 52 having a locking strip 53 comprising an upper surface 57. The connecting portion 5 of the coupling element 2 comprises a first portion 41 and a subsequent second portion 42. In the assembled state, the first portion 41 protrudes along the third axis Y1 and the subsequent second portion 42 protrudes along the second axis Z1. The second portion 42 is configured to engage with the connecting surface 58 of the first building panel 20. The connecting surface 58 of the first building panel 20 is closer to the rear surface 26 of the first building panel 20 than the portion 70 of the upper surface 57 of the locking strip 53 which is closest to the rear surface 26. An advantage of this solution is that the thickness of the locking strip of the second mechanical locking device is independent of the length of the protruding first portion 41 of the connecting part 5. This allows the same coupling element to be used with building panels of different thicknesses, thereby reducing the need to produce different coupling elements for each thickness of building panels. Thus, the coupling element is more versatile. The upper surface 57 of the locking strip 53 may be planar, except for the locking element 54 which may protrude from the locking strip 53, preferably towards the plane V2 of the front surface 25 of the first building element. Thus, when the upper surface 57 of the locking strip is planar, the portion 70 may be located in the plane of the upper surface 57.

[0083] The protruding member 7 may be configured to overlap a play P between a main plane V1 of the front surface of the coupling element 2 and the rear surface 26 of the first panel 20 .

[0084] The second mechanical locking device 50 may further include a locking groove 55, and the locking strip 53 may include a locking element 54. The locking groove 55 may be configured to cooperate with the locking element 54 to lock in the direction of the second axis Z1. Specifically, the locking element 54 may cooperate with a locking surface 56 in the locking groove 55. The locking surface 56 may prevent the locking tongue 51 from shifting in the direction (usually vertical direction) along the second axis Z1. The locking surface 56 may be located in a recess 55b in the locking groove 55.

[0085] The connecting surface 58 may be a recess, a convex wall 59 (see Figure 4B) or groove 60 (see Figure 5B ) part.

[0086] Figure 5A and 5B 1 shows a side view of an embodiment. As shown in the figure, the second mechanical locking device 50 can be connected with Figure 4A and 4B In contrast to the embodiment shown in . The locking tongue 51 can be located on the first edge 21 of the first building panel 20, and the tongue groove 52 can be located on the second edge 22' of the second building panel 20'. Therefore, the locking strip 53 of the tongue groove can be located on the second edge 22' of the second building panel 20'. Correspondingly, the upper surface 57 of the locking strip 53 is also located on the second edge 22' of the second building panel 20'. The second mechanical locking device 50 is configured for locking the first panel 20 and the second panel 20' in the direction of the third axis Y1 by a folding displacement of the second panel 20' around its second edge 22', the third axis Y1 being transverse to the plane of the front surfaces 25, 25' of the first panel 20 and the second panel 20'. The second mechanical locking device 50 comprises a locking tongue 51 and a tongue groove 52, wherein the tongue groove has a locking strip 53 comprising an upper surface 57. In order for the locking groove 55 to receive the locking strip 53 (including the locking element 54), a chamfer 28 may be present in the rear surface 26 at the second edge 22' of the second building panel. The chamfer 28 may extend from the second edge 22', preferably, the chamfer 28 extends for a length no longer than the locking strip 53. For example, the chamfer 28 may extend for 5% to 100%, such as 20% to 80%, such as 30% to 70% of the length of the locking strip 53. Furthermore, the chamfer may be at an angle of 3-45°, such as 4-25°, such as 5-15°, relative to the rear surface 26. In the assembled state, the connecting part 5 comprises a first part 41 protruding along the third axis Y1, and a subsequent second part 42 protruding along the first axis Z1. The second part 42 is configured to engage with the connecting surface 58 of the first building panel 20. The connecting surface 58 of the first building panel 20 is closer to the rear surface 26 of the first building panel 20 than the upper surface of the locking strip closest to the rear surface 26', such as the portion 70 of the upper surface 57 of the locking strip 53 closest to the rear surface 26'.

[0087] As an alternative to the bevel 28 in the rear surface 26' at the second edge 22' of the second building panel, the locking strip may be flexible.

[0088] Figures 6A-6CThree different embodiments according to the present disclosure are shown. The ratio between the thickness of the building panels and the thickness of the coupling element 2 may be different. The second mechanical locking device 50 comprises a locking tongue 51 and a tongue groove 52, the tongue groove having a locking strip 53 with an upper surface 57. In the assembled state, the connecting part 5 comprises a first part 41 protruding along the third axis Y1 and a subsequent second part 42 protruding along the second axis Z1. The second part 42 is configured to engage with a connecting surface 58 of the first building panel 20. The connecting surface 58 of the first building panel 20 is closer to the rear surface 26 of the first building panel 20 than the upper surface 57 of the locking strip 53 closest to the rear surface 26, for example the part 70 of the upper surface of the locking strip 53 closest to the rear surface 26. The connecting surface 58 may be a convex wall 59. The coupling element 2 may further comprise a protruding member 7 configured to cooperate with the first panel 20. The protruding member 7 may be configured such that, in the assembled state of the coupling element 2 and the first panel 20, the protruding member 7 is aligned with a groove 27 (see FIG. Figure 6B and 6C ) to lock or prevent the connection part 5 and the first edge 21 of the first panel 20 from being separated from each other in the direction along the second axis Z1. At least a part of the protruding member 7 may be elastic. The protruding member 7 may extend by 3 to 15 mm, for example 3 to 10 mm, for example 4 to 6 mm in the direction along the second axis Z1. The protruding member 7 may include at least one portion 7b, which may be displaced relative to the second connection device 5, for example in the direction along the third axis Y1. The force required to displace the at least one portion 7b may be 1 to 100 N, for example 5 to 50 N, for example 20 to 30 N along the normal to the front surface of the coupling element.

[0089] The protruding member 7 may be configured to protrude from a main plane V1 of the front surface of the coupling element 2 in the assembled state of the coupling element 2 and the first building element 10. The protruding member 7 may be configured to be biased against the rear surface 26 of the first building panel 20 in the assembled state of the coupling element 2 with the first panel 20 (see for example Fig. 6A The protruding member 7 may be configured to be biased also in the assembled state of the coupling element 2 with the first panel 20 and when cooperating with the groove 27 in the rear surface 26 of the first building panel 20 .

[0090] Figures 7A-7C Three embodiments according to the present disclosure are shown, which are similar to Figures 6A-6C, but it is shown that the connection surface 58 can be part of the groove 57 instead of part of the convex wall. Therefore, the locking groove 55 can include a groove 60, which includes the connection surface 58. In the assembled state, the connecting part 5 includes a first part 41 protruding along the third axis Y1 and a continuous second part 42 protruding along the second axis Z1. In the assembled state, the first part 41 can protrude into the locking groove 55. The second part 42 is configured to engage with the connection surface 58 of the first building panel 20. Therefore, the second part 42 of the connecting part 5 can contact with the connection surface 58.

[0091] exist Figures 7A-7C The protruding member 7 is not shown in FIG. 1 , but the protruding member 7 may be present or absent.

[0092] Figures 8A-8I A coupling element 2 according to an embodiment is shown. The coupling element 2 may comprise two locking portions 3, 4 protruding in opposite directions along a first axis X1. The locking portions 3, 4 may be configured to cooperate with a first mechanical locking device 30. The locking portions 3, 4 may be different from each other. For example, the locking portions may be complementary to each other, such as a locking tongue 31 and a tongue groove 32. The locking portion 3 may be configured to cooperate with a first edge 11 of a first building element 10, while the locking portion 4 may be configured to cooperate with a second edge 12 of the first building element 10. The first edge 11 and the second edge 12 of the building element may be two long sides of a building panel. These edges may extend along a second axis Z1. The coupling element 2 further comprises a connecting portion 5 protruding in a direction along a third axis Y1. The connecting portion 5 may extend along the first axis X1 and may be configured to cooperate with a first edge 21 of a first building panel 20 and an opposite second edge 22 of a second building panel 20'. In the assembled state, the connecting part 5 comprises a first part 41 protruding along the third axis Y1 and a subsequent second part 42 protruding along the second axis Z1. The second part 42 is configured to engage with the connecting surface 58 of the first building panel 20 (eg Figures 4A-7C ). The connecting surface 58 of the first building panel 20 is closer to the rear surface 26 of the first building panel 20 than the portion 70 of the upper surface 57 of the locking strip that is closest to the rear surface 26 of the first building panel 20. Therefore, the first portion 41 may be shorter than the shortest distance from the upper surface 57 of the locking strip 53 to the rear surface 26.

[0093] Figures 9A-9I A coupling element 2 according to an embodiment is shown, which has the same Figures 8A-8IThe same features. In addition, the coupling element 2 may include a protruding member 7 configured to cooperate with the first building panel 20, for example with the rear surface 26 of the first building panel. The protruding member 7 may include at least one portion 7b that can be displaced relative to the connecting portion 5, for example in the direction along the third axis Y1. In addition, the coupling element may include fastening holes 82 for screws or the like, so that the coupling element 2 can be more securely fastened to a fixed structure, such as a wall 80, behind the assembled building element 20, 20'. The protruding member 7 may include an attachment portion 7a and a free portion 7b, preferably, the free portion 7b is an end portion. The protruding member 7 may include a portion protruding along the second axis Z1 in a direction toward or away from the connecting portion 5, the portion extending from the attachment portion 7a to the free portion 7b. A portion of the protruding member 7, preferably the free portion 7b, may include a structure configured to facilitate friction, such as friction between the free portion 7b and an adjacent surface, such as the rear surface 26 of the first panel 20. The structure may include a pattern and / or material configured to facilitate friction. The material may be a different material than the material of the coupling element body 8. Thus, in any embodiment, the protruding member 7 may comprise a different material. The structure that facilitates friction may comprise a polymer-based material, such as rubber or silicone. The fastening hole 82 and the protruding member 7 are optional features, such as Figures 8A-8I The fastening holes 82 and the protruding members 7 are independent features that can be used alone or in combination.

[0094] Reference Fig.10 According to one embodiment, the protruding member 7 is configured to cooperate with the rear surface 26 of the first building panel 20. The protruding member 7 may be configured for relative positioning of at least a portion of the coupling element 2, such as the connecting portion 5, and at least a portion of the first panel 20, such as the first edge 21. The protruding member 7 may be configured to bias against the rear surface 26 of the first building panel 20 in an assembled state of the coupling element 2 with the first panel 20. The protruding member 7 may be elastic. The protruding member 7 may also be configured to bias the connecting portion 5 towards the first building panel 20 in a direction along the third axis Y1, such as in a distal direction, in an assembled state of the coupling element 2 with the first panel 20. The protruding member 7 may be configured to overlap a play P between a main plane V1 of the front surface of the coupling element 2 and the rear surface 26 of the first panel 20.

[0095] Reference Fig.11, the protruding member 7 may include at least one portion 7b that can be displaced relative to the second connecting portion 5, for example in the direction along the third axis Y1. A portion of the protruding member 7 may include a structure configured to facilitate friction, such as friction between the free portion 7b and an adjacent surface, such as the rear surface 26 of the first panel 20. The structure may include a pattern and / or material configured to facilitate friction. The material may be a material different from the material of the coupling element body 8. Therefore, in any embodiment, the protruding member 7 may include a different material. The structure that facilitates friction may include a polymer-based material, such as rubber or silicone.

[0096] Reference Figures 12A-12D , the protruding member 7 may include at least one portion 7b, which may be displaced relative to the second connecting portion 5, for example, in the direction along the third axis Y1. The protruding member 7 may include an attachment portion 7a and a free portion 7b, preferably, the free portion 7b is an end portion. The protruding member 7 may include a portion protruding along the second axis Z1 in a direction toward or away from the connecting portion 5, the portion extending from the attachment portion 7a to the free portion 7b. A portion of the protruding member 7, preferably the free portion 7b, may include a structure configured to facilitate friction, such as friction between the free portion 7b and an adjacent surface (e.g., the rear surface 26 of the first panel 20). The structure may include a pattern, such as a pointed tip, a point or a spike, and / or a material configured to facilitate friction. The material may be a material different from the material of the coupling element body 8. Therefore, in any embodiment, the protruding member 7 may include a different material. The structure that facilitates friction may include a polymer-based material, such as rubber or silicone. The protruding member 7 may extend 3 to 15 mm, such as 3 to 10 mm, such as 4 to 6 mm, in the direction along the second axis Z1. The protruding member 7 may include at least one portion 7b which may be displaced relative to the second connecting device 5, for example in the direction along the third axis Y1. The displacement of the at least one portion 7b relative to the second connecting device 5, for example in the direction along the third axis Y1, may be 1-10 mm, for example 1-5 mm. The force required to displace the at least one portion 7b may be 1 to 100 N, for example 5 to 50 N, for example 20 to 30 N, along the normal to the front surface of the coupling element. The protruding member may be square. The free portion 7b may be, for example, linear, bisected, cylindrical or pointed.

Claims

1. An assembly comprising a coupling element (2), a first building element (10), a first building panel (20) and a second building panel (20'), wherein: The coupling element (2) is configured for assembling the first building panel (20) and the second building panel (20') to the first building element (10), wherein the coupling element (2) comprises at least one locking portion (3, 4) protruding along a first axis (X1), wherein the locking portion (3, 4) is configured to cooperate with a first mechanical locking device (30) of a first edge (11) or a second edge (12) of the first building element (10) respectively extending along a second axis (Z1), so as to obtain an assembled state with the first edge (11) or the second edge (12) by folding displacement of the coupling element (2) around the second axis (Z1), thereby locking the coupling element (2) to prevent displacement along the first axis (X1) and a perpendicular third axis (Y1), wherein the first axis (X1) and the perpendicular third axis (Y1) are both orthogonal to the second axis (Z1); wherein the coupling element (2) comprises a connecting portion (5) protruding in the direction along the third axis (Y1), the connecting portion (5) being configured to cooperate with a second mechanical locking device (50) of a first edge (21) of the first building panel (20) or an opposite second edge (22) of the second building panel (20'), wherein the second mechanical locking device (50) is configured for locking the first building panel (20) and the second building panel (20') in the direction of the third axis (Y1), transverse to the plane of the front surfaces (25, 25') of the first building panel (20) and the second building panel (20'), by folding displacement of the second panel (20') about its second edge (22'), wherein the second mechanical locking device (50) comprises a locking tongue (51) and a tongue groove (52), the tongue groove having a locking strip (53) having an upper surface (57), Wherein, in the assembled state, the connecting portion (5) comprises a first portion (41) protruding along the third axis (Y1) and a second portion (42) protruding along the second axis (Z1), the second portion (42) being configured to engage with a connecting surface (58) of the first building panel (20), characterized in that the connecting surface (58) of the first building panel (20) is closer to the rear surface (26) than a portion (70) of the upper surface (57) of the locking strip (53) which is closest to the rear surface (26) of the first building panel (20).

2. The assembly according to claim 1, wherein The second mechanical locking device (50) comprises a locking groove (55), and the locking bar (53) comprises a locking element (54), wherein the locking groove (55) is configured to cooperate with the locking element (54) for locking in the direction of the second axis (Z1).

3. The assembly according to claim 2, wherein: The locking strip (53) includes the connecting surface (58), or the locking groove (55) includes the connecting surface (58).

4. The assembly according to any one of claims 1 to 3, wherein: The connecting surface (58) is a part of the convex wall (59) or a part of the groove (60).

5. The assembly according to any one of claims 1 to 4, wherein: The locking strip (53) comprises a raised wall (59) comprising the connecting surface (58).

6. An assembly according to any one of claims 1 to 4, wherein: The locking groove includes a groove (60) including the connecting surface (58).

7. An assembly according to any one of claims 1 to 6, wherein: In the assembled state, the first portion (41) protrudes into the locking groove (55).

8. An assembly according to any one of claims 1 to 7, wherein The coupling element (2) further comprises a protruding member (7) configured to cooperate with the first panel (20).

9. The assembly according to claim 8, wherein: At least a portion of the protruding member (7) is elastic.

10. An assembly according to claim 8 or 9, wherein The protruding member (7) is configured such that, in the assembled state of the coupling element (2) and the first building element (10), the protruding member (7) protrudes from the main plane (V1) of the front surface (9) of the coupling element (2).

11. An assembly according to any one of claims 8 to 10, wherein The protruding member (7) is configured to cooperate with a rear surface (26) of the first panel (20).

12. An assembly according to any one of claims 8 to 11, wherein The protruding member (7) is configured to achieve relative positioning of at least a portion of the coupling element (2), such as the connecting portion (4), and at least a portion of the first panel (20), such as the first edge (21).

13. An assembly according to any one of claims 8 to 12, wherein The protruding member (7) is configured such that, in an assembled state of the coupling element (2) and the first panel (20), the protruding member (7) is biased against a rear surface (26) of the first building panel (20).

14. An assembly according to any one of claims 8 to 13, wherein The protruding member (7) is configured such that, in an assembled state of the coupling element (2) and the first panel (20), the protruding member (7) biases the connecting portion (5) in a direction along the third axis (Y1) towards the first building panel (20), for example in a distal direction.

15. An assembly according to any one of claims 8 to 14, wherein The protruding member (7) is configured to bridge a play (P) between a main plane (V1) of a front surface (9) of the coupling element (2) and a rear surface (26) of the first panel (20).

16. An assembly according to any one of claims 8 to 15, wherein The protruding member (7) is configured such that, when the connecting element (2) and the first panel (20) are in an assembled state, the protruding member (7) cooperates with a groove (27) provided in a rear surface (26) of the first panel (20), thereby locking or preventing the connecting portion (5) and the first edge (21) of the first panel (20) from being separated from each other in a direction along the second axis (Z1).

17. An assembly according to any one of claims 8 to 16, wherein The protruding member (7) comprises a free portion (7b) which is displaceable relative to the connecting portion (5), for example in a direction along the third axis (Y1).

18. An assembly according to any one of claims 8 to 17, wherein The protruding member (7) comprises an attachment portion (7a) and a free portion (7b), preferably the free portion (7b) is an end portion.

19. An assembly according to any one of claims 8 to 18, wherein The protruding member (7) comprises a portion protruding along the second axis (Z1) in a direction towards or away from the connecting portion (5), the portion extending from the attachment portion (7a) to the free portion (7b).

20. An assembly according to any one of claims 8 to 19, wherein At least one portion of the protruding member (7), preferably the free portion (7b), comprises structure configured to facilitate friction, such as friction between the free portion and an adjacent surface, such as a rear surface (26) of the first panel (20).

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