Set of building panels comprising locking means

Abstract

The present disclosure relates to a set of panels comprising a locking device for locking a first edge portion of a first panel (1) to a second edge portion of a second panel (2). The locking device comprises a horizontal locking device and a vertical locking device. The vertical locking device comprises: a separate tongue (3) arranged in an insertion groove (4) of the first edge portion, wherein the separate tongue comprises a flexible member (3b); and a tongue groove (5) provided in the second edge portion. In a vertically locked state of the first and second edge portions, an abutment member (13) provided at a longitudinal end portion of the separate tongue cooperates with a stop surface (12) of the second edge portion, and a locking portion of the separate tongue cooperates with the tongue groove. The stop surface is arranged closer to an inner portion of the insertion groove than the locking portion.

Description

Technical Field

[0001] This disclosure generally relates to a group of panels including a locking device. More specifically, the locking device includes an individual tenon configured to engage with a tenon groove for vertically locking an edge portion of the panel. The panel may be an architectural panel, floor panel, ceiling panel, furniture component, or wall panel. Background Technology

[0002] Recently, there have been various developments that have made paneling easier to remove, especially without the use of separate tools.

[0003] As a further development of WO 2022 / 197234 A1, disclosure WO 2024 / 063687 A1 discloses a set of panels and a locking device for locking a first edge portion of a first panel to a second edge portion of a second panel. The locking device includes a vertical locking mechanism comprising a separate tenon disposed in an insertion groove in the first edge portion and a tenon groove disposed in the second edge portion. In the vertically locked state of the first and second edge portions, an abutment member disposed at the longitudinal end portion of the separate tenon engages with a stop surface of the second edge portion, and the locking portion of the separate tenon engages with the tenon groove.

[0004] However, there may be situations where a simpler design for certain components of the locking device is desired. Furthermore, there is a need to produce a locking device that is even better suited to certain fragile panels (such as perforated panels). Summary of the Invention

[0005] The general objective of at least the embodiments of this disclosure is to provide a set of panels including a locking device that can be removed in an improved manner, for example, without using tools that interact with the locking device. For example, removal may involve only manual operation.

[0006] Another general objective of at least the embodiments disclosed herein is to provide a set of panels that can be more easily and / or more quickly disassembled or reassembled.

[0007] Another objective of at least the embodiments of this disclosure is to provide any of the general objectives described above while using a simpler independent tenon design.

[0008] Another object of at least the embodiments of this disclosure is to provide a locking device that can produce a more rigid panel, for example, a more rigid panel in its end sections and / or in its corner portions.

[0009] These and other objects and advantages, which will become apparent from the description, have been achieved through the various aspects, embodiments, and examples described below.

[0010] According to this disclosure, a set of panels, such as architectural panels, is provided, the set of panels including a first panel and a second panel, and a locking device for locking a first edge portion of the first panel to a second edge portion of the second panel, wherein the locking device includes a horizontal locking device and a vertical locking device. The vertical locking device includes a separate tenon disposed in an insertion groove in the first edge portion, wherein a longitudinal extension of the separate tenon extends along the first edge portion. The separate tenon includes a flexible member configured to face an inner portion of the insertion groove when the separate tenon is disposed in the insertion groove, wherein the flexible member is configured to displace the separate tenon outward during locking or unlocking. The vertical locking device also includes a tenon groove disposed in and extending along the second edge portion. In the vertically locked state of the first and second edge portions, and in a preferred configuration of the locking device, an abutment member disposed at the longitudinal end portion of the separate tenon engages with a stop surface of the second edge portion, and the locking portion of the separate tenon engages with the tenon groove. The stop surface is arranged closer to the inner part of the insertion groove than the locking portion, preferably in the vertically locked state, the stop surface is arranged closer to the inner part of the insertion groove than the locking portion.

[0011] According to this disclosure, in the vertically locked state, the lateral extension length of the individual tenons extending laterally from the insertion groove is greater at the locked portion than at the longitudinal end portion. Therefore, the edge portions can be partially and substantially vertically unlocked at the longitudinal end portions, and preferably, the flexible individual tenons can be gradually inserted into the tenon groove along the edge portion at a distance from the longitudinal end portion to provide their vertical locking.

[0012] Furthermore, according to this disclosure, the first and second panels can be disassembled by vertically displacing the first and second edge portions in a direction away from each other, preferably by means of scissor-like or folding displacement starting near the position of the abutment member. For example, the edge portions can be vertically unlocked by relatively vertical displacement of the first and second edge portions away from each other, preferably substantially manually, which can optionally be achieved using a lifting element below the second panel. During unlocking by folding displacement, the separate tenon, including the locking portion, can be gradually displaced along the first edge portion into the insertion groove. In view of the above, disassembly or reassembly of the panels can be easier and / or less time-consuming. In particular, a separate tool interacting with the locking device may not be required during disassembly, although this is not excluded. As will be outlined elsewhere herein, in some embodiments, the edge portions can be unlocked by repeatedly vertically displacing them away from and toward each other. Separate tools may be suitable for disassembling certain fragile panels, such as perforated panels, which may be at risk of damage during manual disassembly.

[0013] The stop surface prevents the individual tenons from shifting outward from the insertion groove, preferably at least in the horizontal direction. This embodiment may be preferred in a vertical locking state and / or in a locking device configuration.

[0014] The stop surface may include an area of ​​the second edge portion that engages with a separate tenon in the locked state, and optionally also includes an area that engages with a separate tenon during locking and / or unlocking.

[0015] Typically, mating surfaces can be mated by direct or indirect engagement. Examples of such mating surfaces include stop surfaces and abutment surfaces. In any of the embodiments described herein, a sealant, such as wax or adhesive, may be provided between the mating surfaces, thus providing an example of indirect engagement.

[0016] The assembled (or disassembled) state of the first and second panels may include the vertical and horizontal locking (or unlocking) of the first and second edge portions.

[0017] A separate tenon can be a separate entity arranged in an insertion groove. Preferably, the separate tenon is flexible.

[0018] The stop surface may be arranged closer to the inner part of the insertion groove than the outermost section of the locking portion, preferably in the vertically locked state, the stop surface may be arranged closer to the inner part of the insertion groove than the outermost section of the locking portion.

[0019] The horizontal distance from the inner portion to the stop surface, for example, the horizontal distance from the innermost portion of the insertion groove to the outermost portion of the stop surface, may be less than the horizontal distance from the inner portion to the locking portion.

[0020] The stop surface can extend substantially vertically, preferably in a vertically locked state and / or in a locking device configuration. For example, the stop surface can form an angle of 0°-10° relative to the vertical direction, such as 0°-5° or 0°-2°. Therefore, the fit between the abutment member and the stop surface can provide vertical locking with little or no edge coverage. Consequently, simpler panel assembly and / or disassembly can be provided.

[0021] The stop surface can be one of at least two stop surfaces, wherein a corresponding stop surface of the at least two stop surfaces is provided on opposite sides of the tenon groove, for example, at each of the two end sections. For example, two of the at least two stop surfaces can be arranged on opposite sides of the tenon groove.

[0022] Along the second edge portion, the stop surface may be arranged adjacent to, preferably longitudinally adjacent to, the tenon groove. Therefore, the end sections and / or corner portions of the second edge portion can become more rigid.

[0023] The stop surface can be positioned at the same vertical height as a portion of the tenon groove. Therefore, a basically straight, independent tenon can be used to provide vertical locking.

[0024] The stop surface can be disposed on a separate material, preferably arranged in a mortise groove. Preferably, the separate material is different from other parts of the second edge portion. For example, the separate material can be a polymer-based material, a wood-based material, or a filler material. With this embodiment, the stop surface can be disposed in the second panel without using a jump-action tool to form the mortise groove.

[0025] Each stop surface disclosed herein can be configured to face the corresponding abutment member in a vertically locked state. The abutment member can be one of at least two abutment members, and the two opposing longitudinal end portions of the individual tenon can each include a corresponding abutment member from the at least two abutment members. Thus, in combination with the aforementioned two or more stop surfaces, the individual tenon can present a curved, preferably substantially symmetrical shape in the vertically locked state. Furthermore, unlocking of the edge portion can begin from either of its two sides. Moreover, when multiple types of panels are included in the set of panels, it can be adapted to lock them together in a pattern, such as a herringbone pattern, for example, including so-called A panel and B panel. Here, the individual tenon can include an abutment member facing a preferred portion or preferred side (e.g., a specific corner portion) of the edge portion, regardless of the type of panel into which it is inserted.

[0026] In the vertically locked state, the abutment member is pre-tensioned against the stop surface. For example, pre-tensioning can be caused by the flexible member of the independent tenon. The pre-tensioning of the independent tenon can cause it to be offset outward, for example by spring force. With the aid of the abutment member, the independent tenon can be longitudinally bent or folded, such that its longitudinal end portion mates with the stop surface of the second edge portion, and its locking portion mates with the tenon groove.

[0027] The longitudinal length of the independent tenon can exceed the longitudinal length of the tenon groove. Therefore, in the vertically locked state, along the second edge portion, the locking portion and the longitudinal end portion can be arranged inside and outside the tenon groove, respectively. The longitudinal length of the independent tenon can be determined in the unlocked state of the edge portion. Preferably, these relationships between the longitudinal lengths are also valid in the locked state.

[0028] The longitudinal length of the second edge portion can exceed the longitudinal length of the tenon groove.

[0029] The tenon groove can be defined by longitudinal edge surfaces. One or both longitudinal edge surfaces can be curved or inclined along the longitudinal direction of the tenon groove.

[0030] In the vertically locked state, the locking portion may protrude from the insertion groove at least 50%, preferably at least 70%, of the longitudinal length of the individual tenon. For example, the locking portion may protrude from the insertion groove at 50-98%, such as 70-95% or 90-95%, of the longitudinal length.

[0031] The first edge portion of the first panel and the second edge portion of the second panel can be short edge portions shorter than the long edge portions of the first and second panels. However, in some embodiments, the first and second edge portions can be long edge portions.

[0032] The locking part of the independent tenon is preferably able to bend longitudinally in the vertically locked state.

[0033] During the locking process, the second edge portion may engage with the locking portion, preferably directly, to displace the individual tenon into the insertion groove. For example, the second edge portion may include a lower mating surface, preferably an inclined lower mating surface, configured to engage with the individual tenon during the locking process to displace the individual tenon into the insertion groove.

[0034] Each flexible member may extend from a corresponding base of an individual tenon. Each flexible member may extend from and bend around a corresponding base. In some embodiments, a flexible member extending from a base disposed at a longitudinal end portion may extend from the longitudinal inner surface of the base and bend around the longitudinal inner surface of the base. Therefore, less force may be required to displace the individual tenons at the longitudinal end portions, thus making unlocking easier.

[0035] During locking, the locking portion can be configured to gradually insert into the insertion groove along the first edge portion in a first stage, and in a subsequent second stage, the locking portion can be configured to gradually insert into the tenon groove along the second edge portion.

[0036] The horizontal locking device may include a locking element disposed on a strip extending horizontally outward from the lower portion of the first edge portion and a locking groove disposed in the second edge portion. The locking element and the locking groove may be configured to cooperate with each other to provide a horizontally locked state for the first and second edge portions.

[0037] The first and second edge portions can be configured to be vertically unlocked by a preferred forced relative vertical displacement of the first and second edge portions away from each other and / or by repeated, preferably forced, relative vertical displacement of the first and second edge portions away from and towards each other. For example, unlocking may involve manual operation. Repeated relative vertical displacement may include abrupt up-and-down displacement of the edge portions. Through repeated displacement, preferably by folding displacement, the unlocking of the edge portions can become more controlled in some embodiments. In practice, after the first relative vertical displacement of the edge portions away from each other, a portion of the individual tenons may be locked, resulting in a partially unlocked edge portion, and a second relative vertical displacement of the edge portions towards each other can at least partially release the individual tenons from locking; thereafter, a third relative vertical displacement of the edge portions away from each other can follow, thereby further unlocking the edge portions. Another advantage is that the risk of damage to the edge portions (e.g., at their decorative layers) and / or the locking mechanism can be reduced through relative vertical displacement. In fact, excessive force from a relative vertical displacement pointing in only a single direction can damage edge sections or locking mechanisms, especially for fragile panels.

[0038] The first and second panels may include a core comprising a polymeric material, such as a thermoplastic material. Thermoplastic materials may include polyvinyl chloride (PVC), polyester, polypropylene (PP), polyethylene (PE), polystyrene (PS), thermoplastic polyurethane (PU), TPU, polyethylene terephthalate (PET), polyacrylate, methacrylate, polycarbonate (PC), polyvinyl butyral (PVB), polybutylene terephthalate (PBT), or combinations thereof. In some embodiments, the core may include at least two layers.

[0039] The first and second panels may include a decorative layer, such as a decorative foil comprising a thermoplastic material. The thermoplastic material of the decorative layer may be or include PVC, polyester, PP, PE, PS, TPU, PET, polyacrylate, methacrylate, PC, PVB, PBT, or combinations thereof. The decorative foil is preferably printed by, for example, direct printing, rotary gravure printing, or digital printing.

[0040] The first and second panels may include a wear-resistant layer, such as a film or foil. The wear-resistant layer may contain a thermoplastic material. The thermoplastic material may be PVC, polyester, PP, PE, PS, TPU, PET, polyacrylate, methacrylate, PC, PVB, PBT, or a combination thereof.

[0041] The first and second panels may include a wood-based core, such as high-density fiberboard (HDF), medium-density fiberboard (MDF), particleboard, oriented strand board (OSB), or plywood.

[0042] Generally, unless otherwise expressly defined, all terms used herein, such as those used in the claims, will be interpreted according to their ordinary meaning in the art. Unless otherwise expressly stated, all references to “a / an / the / described [element, device, component, mechanism, step, etc.]” ​​shall be publicly interpreted as referring to at least one instance of said element, device, component, mechanism, step, etc. References to one or more “at least one element”, etc., may be simply referred to as “element”. Attached Figure Description

[0043] The present disclosure will now be described in conjunction with exemplary embodiments, and will be described in more detail with reference to the accompanying exemplary drawings, wherein:

[0044] Figures 1a-1e A top view showing an exemplary embodiment of the first or second panel ( Figures 1a-1b ) and an exemplary embodiment of the assembled panel ( Figure 1c-1d Perspective views of exemplary embodiments of the panel during assembly or disassembly. Figure 1e ).

[0045] Figures 2a-2f Perspective view ( Figure 2a ), front view ( Figure 2b ) and along Figure 1c , 1d Or, the sectional side view of sections C1-C1, C2-C2, and C3-C3 in 4a ( Figure 2c-2e An exemplary embodiment of the second edge portion of the second panel is shown, and in a side view ( Figure 2f The illustration shows an exemplary embodiment of the first and second edge portions of the first and second panels in a decomposed state along the cross section C1-C1 (or C2-C2, including the dashed lines).

[0046] Figures 3a-3c An exemplary embodiment of the first and second panels in an assembled state is shown in a side view.

[0047] Figures 4a-4g Top view ( Figure 4a The side and sectional views show the first and second panels in their assembled state along the [path]. Figure 4a Section C1-C1 in Figure 4b Or 4e), C2-C2 ( Figure 4c or 4f) and C3-C3 ( Figure 4d Two exemplary embodiments (or 4g).

[0048] Figures 5a-5d The unlocked state of the edge portion is shown in top and side views. Figure 5a and 5c) and locked state ( Figure 5b and 5d An exemplary embodiment of the independent tenon tongue.

[0049] Figure 5e-5h The unlocked state of the edge portion is shown in top and side views. Figure 5e and 5g ) and locked state ( Figure 5f and 5h An exemplary embodiment of the independent tenon tongue.

[0050] Figures 6a-6c An exemplary embodiment of the second edge portion of the second panel is shown in perspective view. Figure 6a ), and a sectional side view shows the first and second panels in their assembled state along, for example Figure 1c , 1d Or sections C1-C1 and / or C3-C3 in 4a ( Figure 6b ) and section C2-C2( Figure 6c An exemplary embodiment of ).

[0051] Figures 7a-7b A side view shows the first and second edge portions during locking, for example... Figure 1c , 1d Or sections C1-C1 and / or C3-C3 in 4a ( Figure 7a ) and section C2-C2( Figure 7b An exemplary embodiment of ).

[0052] Figure 7c-7f A side view shows, for example Figure 4e-4g During the unlocking of medium-sized panels using separate tools, the first and second edge portions are along, for example... Figure 1c , 1d Or sections C1-C1 and / or C3-C3 in 4a ( Figure 7c ) and section C2-C2( Figure 7d An exemplary embodiment of the tool is shown, and an exemplary embodiment of such a standalone tool is illustrated in perspective. Figure 7e ) and its use ( Figure 7f ).

[0053] Figure 7g An exemplary embodiment of the assembled wall panel is shown.

[0054] Figures 8a-8c An exemplary embodiment of a set of panels during the removal process is shown in perspective view. Figures 8a-8b Exemplary embodiments of () and lifting elements () Figure 8c ).

[0055] Figure 8dAn exemplary embodiment of the interlocking third and fourth edge portions is shown in a side view, for example... Figure 1e or can be obtained from Figure 1e Those that were obtained.

[0056] Figures 9a-9b A front view of an exemplary embodiment of the second edge portion is shown. Figure 9a A cross-sectional side view of an exemplary embodiment of a set of panels. Figure 9b ), for example along Figure 1c , 1d Or a sectional side view of section C2-C2 in 4a.

[0057] Figures 9c-9d An exemplary embodiment of the independent tenon in the unlocked state and its configuration in the insertion groove during locking and unlocking are shown in top view and sectional side view. Detailed Implementation

[0058] In the following text, references will be made to, for example Figures 1a-1e The various embodiments of this disclosure are described in the examples of 2a-2f, 3a-3c, 4a-4g, 5a-5h, 6a-6c, 7a-7g, 8a-8d and 9a-9d.

[0059] This invention relates to a set of panels, such as architectural panels, including a first panel 1 and a second panel 2, wherein the first panel 1 and the second panel 2 respectively include a first edge portion 1a and a second edge portion 2b. Preferably, the panels are substantially identical. For example, the panels can be floor panels, but for example... Figure 7g The wall paneling, or ceiling paneling, or furniture component shown is also conceivable. Panels 1 and 2 each include front surfaces 1e, 2e and back surfaces 1f, 2f, preferably extending along mutually perpendicular first horizontal directions X and second horizontal directions Y. For example, first edge portion 1a and second edge portion 2b may extend along the first horizontal direction X. The normal N of the principal planes M1, M2 extending along the front surfaces 1e, 2e and / or back surfaces 1f, 2f defines a vertical direction Z extending away from the front surfaces of the first panel 1 and the second panel 2.

[0060] The panel assembly also includes locking devices for locking the first edge portion 1a and the second edge portion 2b together to achieve a locked state. These locking devices can be mechanical locking devices. Therefore, the first panel 1 and the second panel 2 can be assembled together. The locking devices include horizontal locking devices and vertical locking devices, configured to define the horizontal and vertical locked states of the first edge portion 1a and the second edge portion 2b, respectively.

[0061] The panels 1 and 2 here can be rectangular, but in some embodiments they can also be square. Preferably, the first edge portion 1a and the second edge portion 2b where the locking device is disposed are short edge portions. Clearly, the panels 1 and 2 may include opposing short edge portions 1b and 2a, such as... Figure 1a As shown. Panels 1 and 2 may also include opposing third edge portions 1c, 2c and fourth edge portions 1d, 2d, which are preferably long edge portions. For example, the third and fourth edge portions may extend along a second horizontal direction Y. However, embodiments in which opposing edge portions 1a, 1b, 2a, 2b are long edge portions and opposing edge portions 1c, 1d, 2c, 2d are short edge portions are included herein with necessary modifications.

[0062] This paneling set may include additional panels, such as multiple panels. For example, as... Figure 1e , 8a As shown in 8d, the set of panels may include a third panel 1', and panels 1 and 2 may be assembled to the third panel 1', for example, along the third edge portion 1c', the fourth edge portion 1d' and / or the first edge portion 1a'.

[0063] Panels 1 and 2, such as floor panels, architectural panels, ceiling panels, furniture components, or wall panels, may be configured to be disposed on or attached to an underlying structure, such as subfloor 20. In some embodiments, panels 1 and 2 are floor panels that may be disposed on and along subfloor 20, preferably in a floating manner. See also Figure 1e The horizontal directions X and Y can extend parallel to the underlying structure (e.g., the floor), while the vertical direction Z can extend perpendicular to the underlying structure. Therefore, for example... Figure 7g As shown, in the case of wall panels, the horizontal directions X and Y can extend along the visible wall surface 21, typically set perpendicular to the subfloor 20 in an environment where the wall panels are assembled, and the vertical direction Z can extend along the subfloor.

[0064] In some embodiments, the first panel 1 and the second panel 2 may include a wood-based core 25, such as HDF, MDF, particleboard, OSB, or plywood.

[0065] The core 25 of the first panel 1 and the second panel 2, preferably the core of all panels in the group may contain a polymer-based material.

[0066] In some embodiments, the core 25 of the panels 1 and 2 may contain a thermosetting resin, such as melamine-formaldehyde resin or urea-formaldehyde resin.

[0067] In some embodiments, the core 25 may comprise: a thermoplastic material, such as PVC, polyester, PP, PE, PS, TPU, PET, polyacrylate, methacrylate, PC, PVB, PBT, or combinations thereof; and a filler, preferably an inorganic filler. For example, the core may comprise 20-40 wt% of a thermoplastic material such as PVC and 50-80 wt% of an inorganic filler, such as calcium carbonate (CaCO3), limestone, talc, fly ash, barium sulfate (BaSO4), magnesium oxide (MgO), or stone such as stone powder. Other types of fillers are also conceivable, such as organic fillers, such as wood materials, such as wood fibers or sawdust, bamboo materials, or rice husks.

[0068] The plasticizer content in core 25 can be less than 5 wt%, preferably less than 3 wt% or less than 1 wt%, and can be in the range of 0.1-5 wt%, 0.5-5 wt%, or 0.5-3 wt%, for example, without plasticizer. Therefore, a rigid core can be provided. However, alternatively, the core can be elastic. In any embodiment herein, core 25 and / or panels 1, 2 themselves can have an E modulus of 1-12 GPa, for example 4-9 GPa or 3-7 GPa, preferably determined according to ISO 178:2010 / A1:2013. In some embodiments, core 25 is dense and therefore not foamed, and preferably contains PVC and mineral fillers. In some embodiments, core 25 is foamed, for example, by a foaming agent, which preferably contains PVC and fillers.

[0069] Any panel 1, 2 herein may include a top structure, such as a printed layer and / or abrasion-resistant layer, applied (e.g., bonded) to the core 25. For example, panel 1, 2 may include a core 25 comprising a thermoplastic material, a decorative layer (e.g., a decorative foil comprising a thermoplastic material), and abrasion-resistant layer comprising a thermoplastic material.

[0070] For example, Figures 1a-1e As shown in 2a-2f, 3a-3c, 4a-4g, 5a-5h, 6a-6c, 7a-7d, and 9a-9d, the vertical locking device includes an independent tenon 3 disposed in an insertion groove 4 in the first edge portion 1a and a tenon groove 5 disposed in the second edge portion 2b. The insertion groove 4, the independent tenon 3, and the tenon groove 5 may each have an elongated shape and may have a lateral extension / lateral extension range and preferably a larger longitudinal extension / longitudinal extension range. The longitudinal extensions of the insertion groove 4 and the independent tenon 3 may extend along the first edge portion 1a, and the longitudinal extension of the tenon groove 5 may extend along the second edge portion 2b. Except possibly in the corner portions 8a, 8b of the first panel 1, the cross-section of the insertion groove 4 may be substantially constant along the first edge portion 1a.

[0071] The independent tenon 3 includes a longitudinal end portion 3a and a locking portion 6. The locking portion 6 may be a longitudinal inner portion of the independent tenon 3, preferably disposed between a pair of longitudinal end portions 3a. For example, the locking portion 6 may be a longitudinal central portion of the independent tenon. The independent tenon 3 includes an abutting member 13 disposed at one or both longitudinal end portions 3a. Preferably, the abutting member 13 is disposed in an outer portion of the independent tenon 3, for example, in its lower portion (see, for example, see...). Figure 3a , 3c 4b-4d, 5c-5d, 7a-7b and 9b-9d) or in the upper part (for example, see Figure 3b , 4e -4g, 5g-5h, 6b-6c and 7c-7d). For example, Figure 1d As shown, in some embodiments, where the abutment member 13 is preferably not included, the locking portion 6 may extend to the opposite longitudinal end portion 3a.

[0072] Furthermore, the second edge portion 2b includes a stop surface 12. A tenon groove 5 may longitudinally protrude from the stop surface 12. In the vertically locked state, the abutment member 13 engages with the stop surface 12, for example, in contact, and the locking portion 6 engages with the tenon groove 5, for example, in contact. For example, the tip portion 3i of the independent tenon 3 may engage with the tenon groove 5 at the locking surface 5b. The locking surface 5b may form an angle relative to the principal plane M2. (For clarity, this main plane is in) Figure 2d (Move downwards in parallel). Preferably 10° ≤ ≤50°, more preferably 25°≤ ≤40°. Furthermore, in the vertically locked state a, the outermost lower surface 3j of the preferred tip portion 3i can form an angle relative to the main planes M1 and / or M2. Preferably 0°≤ ≤25°, more preferably 0°≤ ≤10°, for example, 3°≤ ≤7°. The second edge portion 2b may have a substantially constant cross-section, except in the end section 11 and / or corner portions 8c, 8d where the stop surface 12 of the second panel 2 is located.

[0073] One or both longitudinal edge surfaces 5a of the tenon groove 5 may be curved / surfaced or inclined along the longitudinal direction of the tenon groove 5, for example including a radius, see example Figures 2a-2b And 9a.

[0074] In the vertically locked state, the stop surface 12 is closer to the inner portion 4a of the insertion groove 4 than the locking portion 6, for example, the innermost portion. The stop surface 12 can be arranged to be closer to the inner portion 4a of the insertion groove than the outermost segment 6a of the locking portion 6. For example, the outermost segment 6a can be arranged at least in the longitudinal central portion of the individual tenon, see, for example... Figure 1c , 4a 4c, 4f, 5b, and 5f. The outermost segment 6a can be a horizontal outermost segment, for example, measured along the principal plane M1 and / or M2, preferably a horizontal outermost segment measured along the second horizontal direction Y.

[0075] The horizontal distance D2 from the inner portion 4a to the stop surface 12 can be less than the horizontal distance D1 from the inner portion 4a to the locking portion 6. For example, distances D1 and D2 can be determined from the innermost portion of the insertion groove 4 to the outermost portion of the stop surface 12 (relative to the second panel 2) and from said innermost portion to the locking surface 5b, where the outermost segment of the independent tenon 3, for example, the tip portion 3i, engages with the locking surface 5b. Distances D1 and D2 can be measured along the main planes M1 and / or M2, preferably along the second horizontal direction Y. In a non-limiting example, the difference D1-D2 can be 0.1-3.0 mm, preferably 0.3-0.9 mm.

[0076] The engagement between the stop surface 12 and the abutment member 13 prevents the individual tenon from shifting into the tenon groove 5 at the longitudinal end portion 3a. Preferably, the abutment member 13 is pre-tensioned against the stop surface 12 in the vertically locked state. Furthermore, the stop surface 12 prevents the individual tenon 3 from shifting outward from the insertion groove 4, preferably at least in the horizontal direction (e.g., the second horizontal direction Y).

[0077] For example, Figure 1a , Figure 2b , Figure 4a , Figure 5a , Figure 6a and Figure 9aAs shown, but as is conceivable in any embodiment herein, the longitudinal length L1 of the independent tenon 3 may exceed the longitudinal length L2 of the tenon groove 5. Furthermore, the longitudinal length L3 of the second edge portion 2b may exceed the longitudinal length L2 of the tenon groove 5. Therefore, the locking portion 6 and the longitudinal end portion 3a may be arranged along the second edge portion 2b inside and outside the tenon groove 5, respectively, in the vertically locked state. In a preferred embodiment herein, for example when a single independent tenon 3 is arranged in the insertion groove 4, in the vertically locked state, the locking portion 6 may protrude from the insertion groove 4 along at least 50%, preferably at least 70%, of the longitudinal length L1. For example, the locking portion 6 may protrude from the insertion groove 4 along 50-98%, such as 70-95% or even 90-95%, of the longitudinal length L1. Generally, in this document, the protruding locking portion 6 may be a horizontal extension H, for example, a horizontal extension extending along the second horizontal direction Y from the vertical plane VP extending along the upper portions 1g, 2g (defined below) of the connection, see [reference]. Figure 4a and 6c .

[0078] The locking portion 6 of the independent tenon 3 can be flexible. In fact, it can be bent longitudinally in a vertically locked state; for example, its outermost surface 3m can be convex, which can be achieved through… Figure 1c , 1d Curves Q in 4a, 5b, and 5f are most clearly visible. For example, the outermost surface 3m can be specified in the top view of the first panel 1. By longitudinal bending, the locking portion 6 can extend laterally by a lateral length TL in the lateral direction T of the individual tenons relative to at least one end portion 3a, such as both end portions. For example, in the vertical unlocked state, the end portion 3a can extend along a line S, preferably a straight line, and the locking portion 6 can extend laterally from there to the outermost surface 3m by a lateral length TL (see curve W). For example, the lateral length TL can correspond to D1-D2. Alternatively, or preferably additionally, by longitudinal bending, the individual tenons 3 can be bent around the normal N of the main plane M1 and / or around an axis AP extending perpendicularly to the groove plane GP arranged along the sidewall 4c of the insertion groove 4. The longitudinal bending and / or distances D1, D2 can be measured by a CT scanner, preferably in a central plane parallel to the main planes M1 and / or M2.

[0079] The abutting member 13 may be arranged in the tip portion 3i at the longitudinal end portion 3a.

[0080] The tenon body portion 3c may include a continuous longitudinal outer section 3q, preferably extending along substantially the entire longitudinal length L1 of the individual tenon 3.

[0081] In some embodiments, and as in, for example Figure 3b , 4eAs most clearly shown in -4g, 5g-5h, 6b-6c, and 7c-7d, the preferred lateral outer portion of the independent tenon 3 may include a longitudinally extending cavity 3d. When the independent tenon 3 is arranged in the insertion groove 4, the cavity 3d may face downwards. By means of the cavity, the thickness of the independent tenon, such as the outer thickness TS, can be reduced, and thus the thickness TG of the tenon groove 5 can be reduced. Furthermore, the weight and / or cost of the independent tenon can be reduced. Preferably, the locking portion 6 includes the cavity 3d. The cavity 3d may extend along substantially the entire longitudinal length L1 of the independent tenon 3, for example, extending to its longitudinal end portion 3a or longitudinal distal end. In some embodiments, and as in, for example Figure 3a , 3c As most clearly shown in 4b-4d, 5c-5d, and 7a-7b, the independent tenon 3 may have no cavity 3d or may include a small cavity 3d. In any of the above embodiments, the thickness TS, such as the thickness of the tenon body portion 3c, may be substantially constant along substantially the entire longitudinal length L1. Preferably, the maximum thickness TS of the independent tenon 3 is located at the tenon body portion 3c, see [reference needed]. Figure 5c .

[0082] In some embodiments, the opposing longitudinal end portions 3a of the independent tenons 3 all include abutment members 13, see, for example Figures 1a-1c 4a-4g, 5a-5h, and 9c-9d. Therefore, edge portions 1a and 2b can be unlocked from either side, for example, from either end segment 11 of the two end segments. However, in some embodiments, only a single longitudinal end portion 3a of the independent tenon 3 includes an abutment member 13, see, for example... Figure 1b and 1d For example, you can use something like... Figures 5a-5h Or a similar independent tenon 3 as shown in 9c-9d. The longitudinal end portion 3a can be used as a locking portion 6. Thus, the edge portions 1a, 2b can be unlocked from the preferred side. It should be understood that any of these abutment member configurations is equally conceivable here.

[0083] The longitudinal length LA of the abutment member 13, for example, along the longitudinal extension L of the independent tenon 3 (see example). Figure 5b and 5fThe vertical locking strength can be determined by the longitudinal length LS of the stop surface 12. For example, the longitudinal length LA of the abutment member 13 and / or the longitudinal length LS of the stop surface 12 can be 1-20 mm, preferably 5-10 mm or 1-6 mm, more preferably 3-6 mm. Preferably, LS can be the longitudinal length at any or both end segments 11. Note that larger longitudinal lengths LA and LS may mean reduced vertical locking strength, but easier unlocking, or vice versa. Generally, the vertical locking strength must be high enough to achieve an effective locking device along the edge portion; at the same time, the vertical locking strength must be at least partially configured such that the edge portion can be unlocked.

[0084] Along the second edge portion 2b, the stop surface 12 may be arranged adjacent, preferably longitudinally adjacent, to the tenon groove 5. Preferably, the stop surface 12 is positioned at the same vertical height as a portion of the tenon groove 5. Furthermore, the stop surface 12 may extend substantially vertically. At least a portion of the stop surface 12, such as the entire stop surface, may be planar, preferably extending substantially vertically. By extending substantially vertically, the stop surface 12 may form an angle τ of 0°-10°, for example, 0°-5° or 0°-2°, relative to the vertical direction Z (or normal N). This is in Figure 2f The diagram schematically shows the extension of the stop surface, which has been shown and has been transferred parallel to the main plane M1.

[0085] In several preferred embodiments, the stop surface 12 is one of at least two stop surfaces 12, and a corresponding stop surface 12 is arranged on each of the at least two stop surfaces 12 on opposite sides of the tongue groove 5, for example, on each of the two end sections 11. Therefore, the abutment member 13 is thus one of at least two abutment members 13, and each of the opposite longitudinal end portions 3a includes a corresponding abutment member 13. For example, two stop surfaces 12 and two abutment members 13 may be present. Here, for example, in... Figure 1c-1d Sections C1-C1 and C3-C3 in any of 2a-2f, 4a-4g, 6b-6c, 7a, and 7c can be implemented substantially identically. However, it is clear that they can be related to each other by mirror symmetry, for example, mirror symmetry with respect to the longitudinal central portion of the individual tenons.

[0086] A pair of opposing displacement surfaces 3g and 3h of the independent tenon 3 can vertically position the independent tenon in the insertion groove 4, preferably by engaging with the sidewalls 4c and 4d of the insertion groove. Furthermore, the displacement surfaces 3g and 3h can be configured to displace against the sidewalls 4c and 4d during locking or unlocking, preferably along the lateral extension T of the independent tenon and / or along the groove plane GP. The independent tenon can be linearly displaced along a displacement direction 26, which extends along the groove plane GP.

[0087] The independent tenon 3 may include flexible members 3b, such as flexible legs, configured to face the inner portion 4a of the insertion groove 4 when arranged in the insertion groove 4. The flexible members 3b, for example at least their innermost portions, may bend between an inner position 3k and an outer position 3l (see arrow BE), preferably along the tenon insertion direction and / or parallel to the displacement direction 26 relative to the insertion groove of the lateral extension T of the independent tenon, in order to provide a biasing force. Therefore, during locking or unlocking, the independent tenon 3 may shift between the inner and outer positions of the insertion groove. During locking (see arrow B1) or unlocking (see arrow B2), an inwardly pointing pressure applied to the independent tenon 3 may cause the independent tenon to shift inward toward the inner position, and the flexible members 3b may be configured to, for example by means of the biasing force of the flexible members 3b, shift the independent tenon outward toward its outer position during locking (see arrow B1') or unlocking (see arrow B2'). For example, the independent tenon can be compressed. The independent tenon 3 preferably includes a support member 3s disposed on the longitudinal outer side of the flexible member 3b. The support member 3s can engage with the inner part 4a during locking.

[0088] Typically, here, each flexible member 3b can extend from its respective base 3r of an independent tenon 3. Each flexible member can extend from its respective base 3r and can be bent around its respective base 3r. Figures 9c-9d As shown, a flexible member 3b extending from a base 3r located at a longitudinal end portion 3a can extend from the longitudinal inner surface 3u of the base 3r and can be bent around the longitudinal inner surface 3u of the base 3r. The inner surface 3u can be the region of the base 3r that is furthest longitudinal edge 3v away from the independent tenon. In other words, the end segment 3t of the flexible member 3b can point towards the longitudinal central portion of the independent tenon 3. Therefore, unlocking starting from this longitudinal end portion 3a is preferred.

[0089] like Figure 9c As shown, in some embodiments, all the flexible members 3b may be oriented in the same direction, for example, such that they all extend from the same longitudinal side of the base 3r, such as the inner side 3u or the outer side 3w. Figure 9dAs shown, in some embodiments, a flexible member 3b extending from a base 3r disposed at a respective longitudinal end portion 3a may extend from the longitudinal inner surface 3u of the base 3r and may be bent around the longitudinal inner surface 3u of the base 3r. Therefore, unlocking from either longitudinal end portion 3a is equally preferred. Figure 9d As shown, the flexible member 3b can be grouped into two relatively oriented groups S1 and S2, such that they extend from the relatively longitudinal sides, such as the inner sides 3u, of the bases 3r of the respective groups S1 and S2. For example, the distance DF from the outermost longitudinal edge to the flexible member 3b, such as to the end segment 3t, can be 5-30 mm, for example 10-20 mm.

[0090] The independent tenon 3 may comprise a polymer-based material, such as a thermoplastic material like PP, and optionally also include reinforcing elements, such as glass fiber. For example, the independent tenon may be formed by injection molding. Optionally, the independent tenon may include at least one friction element 3f to prevent it from dislodging from the insertion groove 4. The friction element 3f may be formed as a localized protrusion disposed on one or more flexible members 3b, preferably extending vertically outward from any one or both of the displacing surfaces 3g, 3h.

[0091] In some embodiments, such as Figure 1b and 1d As shown, at least two independent tenons 3, or multiple independent tenons, may be arranged in the insertion groove 4. These independent tenons 3 may be along the first edge portions 1a, 2a, for example, along the first horizontal direction X, and / or as... Figure 1b As shown, the third edge portions 1c and 2c are arranged side-by-side or sequentially. For example, the first edge portions 1a and 2a could be short edge portions, but long edge portions are equally conceivable. Note, for example... Figure 1b The locking devices on the third edge portions 1c, 2c and the fourth edge portions 1d, 2d can be similar to, for example Figures 4a-4g The locking device is implemented on the first edge portion 1a, 2a and the second edge portion 1b, 2b.

[0092] In some embodiments, the second panel 2 may include at least two tenon grooves 5 along the second edge portion 2b, see, for example Figure 9a The second edge portion 2b may include a stop surface 12 between adjacent tenon grooves 5, and at least one stop surface 12 at the end section 11 of the second edge portion 2b. Any embodiment herein, for example... Figures 1a-1bEmbodiments of any one of 3a-3c, 4a-4g, 6b-6c, 7a-7g, 8a-8b, and 9b may include at least two tenon grooves 5 and at least two individual tenons 3. For example, each individual tenon 3 may be inserted into a corresponding insertion groove 4 and may mate with a corresponding tenon groove 5. The longitudinal length L1 of each individual tenon 3 may exceed the longitudinal length L2 of the corresponding tenon groove 5.

[0093] Typically, the stop surface 12 can be disposed in the end section 11 of the second edge portion 2b, which can optionally be disposed adjacent to the third edge portions 1c, 2c in the locked state, see [reference]. Figure 1e and 8a -8b. The end section 11 can be configured to be locked during the final stage of locking of the edge portions 1a, 2a (see arrow A1), and / or unlocked during the initial stage of unlocking of the edge portions 1a, 2a (see arrow A2), which is preferably achieved by means of folding displacement.

[0094] The first side section 27 and / or the second side section 28, arranged above and / or below the tenon groove 5, may be continuously connected to the stop surface 12. The stop surface 12 and the first side section 27 and / or the second side section 28 may extend substantially vertically. In the vertically locked state, the locking portion 6 may be longitudinally spaced from the stop surface 12, see, for example... Figure 1c-1d 4a-4g and 6a-6c.

[0095] exist Figure 1b In the short edge portions 1a, 2a and long edge portions 1c, 2c, the individual tenons 3 may include an abutting member 13 on a longitudinal end portion 3a. Furthermore, the end sections 11 of the opposing short edge portions 1b, 2b and long edge portions 1d, 2d may include a stop surface 12. Preferably, the abutting member 13 of the individual tenons in the long edge portions is adjacent to the corner portion 8a where the strips 8, 18 of the long and short edge portions meet (see below). Therefore, the risk of accidental unlocking of the long edge portions (e.g., their middle sections) can be reduced. Additionally, the abutting member of the individual tenons in the short edge portions is preferably adjacent to the corner portion 8a. Optionally, the individual tenons 3 in the short edge portions 1a, 2a may also include an abutting member 13 on the opposing longitudinal end portions 3a (see below). Figure 1b The leftmost figure in the attached diagram is labeled 13.

[0096] In any embodiment of this document, for example in Figures 1a-1eIn any of the embodiments 2a-2f, 3a-3c, 4a-4g, 6a-6c, 7a-7g, 8a-8d, and 9a-9b, the first edge portion 1a may include a strip 8 extending horizontally outward from its lower portion, for example, extending horizontally outward along a second horizontal direction Y. The horizontal locking device may include a locking element 7 preferably extending upward on the strip 8, and a locking groove 9 disposed in the second edge portion 2b. The locking element 7 may be configured to cooperate with, for example, engage with, the locking groove 9 to provide a horizontally locked state for the first edge portion 1a and the second edge portion 2b. For example, the inner portion 7a of the locking element 7 and the outer portion 9a of the locking groove 9, together with the combined upper portions 1g and 2g of the edge portions 1a and 2b, may lock the edge portions 1a and 2b in two opposite horizontal directions, for example, along the second horizontal direction Y. In the horizontally locked state, the vertical plane VP can extend along the upper portions 1g, 2g of the joint, for example, along the outermost horizontal surface of the upper portions 1g, 2g relative to the corresponding panels 1, 2.

[0097] In some embodiments, the sidewalls 4c, 4d of the insertion groove 4 may extend substantially horizontally, for example, substantially parallel to the main plane M1, see [reference]. Figure 2f This may be preferred for thicker panels such as floor panels, for example, panels with a thickness TP of at least 10 mm, preferably 10-25 mm, more preferably 12-16 mm. Furthermore, the removal of panels 1 and 2 is made easier by the substantially horizontally extending insertion groove 4.

[0098] In some embodiments, such as Figure 9b As shown, the insertion groove 4 can be tilted at an angle. .angle It can be defined as the trench plane GP relative to the principal plane M1 (for clarity, the principal plane M1 is in...). Figure 9b The inclination of the parallel downward transfer (for example, the angle). The angle can be less than 20°, preferably 5-15°, for example 10°. This may be preferred for thinner panels such as laminate flooring panels, for example, panels with a thickness of no more than 10 mm, for example, panels with a thickness of 8-10 mm.

[0099] Those skilled in the art will understand that the above embodiments are exemplary, and that the preceding two paragraphs refer to angles. ≈0 and angle Any embodiment of the insertion groove with a value greater than 0 is interchangeable.

[0100] In some embodiments, the combined upper portions 1g and 2g may overlap horizontally. For example... Figure 9b and Figures 6a-6cAs shown, the second edge portion 2b may extend above the first edge portion 1a. For example, the first edge portions 1a and 2b may each include a flange portion 1i and an overlapping portion 2i, which engage with each other in a locked state, for example, joining together. The flange portion 1i and the overlapping portion 2i preferably extend substantially along the entire edge portions 1a and 2b. The vertical plane VP may be disposed along the upper portions 1g and 2g of the joint of the edge portions 1a and 2b, which extend therefrom, and along the horizontal outermost surface of the upper portion 1g, for example, the horizontal outermost surface of the flange portion 1i.

[0101] The stop surface 12 described herein can be integrally formed with the second edge portion 2b, for example, integrally formed with the core 25. Preferably, the tongue groove 5 and the stop surface 12 can be formed by a preferred rotating and cutting jumping tool, which can change its distance from the second edge portion 2b during formation along the second edge portion 2b. However, in some embodiments, such as Figure 3c and 6a As shown in -6c, the stop surface 12 may be disposed on a separate material 24, which may be different from other parts of the second edge portion 2b. This separate material may be, for example, a polymer-based material, a wood-based material, or a filler material, and is preferably disposed within the tongue groove 5. For example, the filler material may be a curable compound, such as a UV-curable compound or adhesive. In such an embodiment, the tongue groove 5 preferably extends along the entire second edge portion 2b, see, for example... Figure 6a In some embodiments, the freestanding material 24, such as a polymer-based material or a filler material, may constitute a sealant. For example, the sealant may provide a seal at the end sections 11 and / or corner portions 8a, 8b. Preferably, the freestanding material 24 does not extend from the second panel 2 beyond the vertical plane VP.

[0102] The first edge portion 1a and the second edge portion 2b can be configured to be vertically locked to each other by a relative vertical displacement A1 of the first and second edge portions toward each other, for example, by moving the second edge portion against the first edge portion. The relative vertical displacement A1 preferably includes a folding displacement, or equivalently, a scissor-like displacement (e.g., a so-called downward fold), whereby the second edge portion gradually shifts vertically toward the first edge portion, see, for example... Figure 1e and 7a -7b (see arrow A1). Through folding displacement, the independent tenon 3, such as the locking portion 6, can be gradually inserted into the insertion groove 4 along the first edge portion 1a in the first stage, and gradually inserted into the tenon groove 5 along the second edge portion 2b in the subsequent second stage. Obviously, the edge portions 1a, 2b can also be locked horizontally, for example by the engagement of the locking element 7 and the locking groove 9 as a result of the relative vertical displacement A1.

[0103] During the locking process, the second edge portion 2b, preferably the lower mating surface 2j, can mate with the outer mating surface 3e of the independent tenon 3, preferably in a direct fit, for moving it into the insertion groove 4, see, for example Figures 7a-7b (See arrow A1). For example, during locking, the second edge portion 2b preferably has a mating surface 2j that mates with the locking portion 6, preferably directly, for moving the independent tenon 3 into the insertion groove 4. The abutment member 13 and the locking portion 6 can be operatively connected such that during locking, movement of the second edge portion 2b toward the inner portion 4a causes the abutment member to move together with the locking portion in the direction toward the inner portion 4a.

[0104] The lower mating surface 2j and the outer mating surface 3e may be inclined, preferably having substantially corresponding inclinations. For example, the outer mating surface 3e may be arranged in the longitudinal outer section 3q. Furthermore, at least in the unlocked state, the outer mating surface 3e preferably extends substantially along the entire longitudinal extension L. Optionally, the outer mating surface 3e may be chamfered at the longitudinal end portion 3a to form a chamfer 3p. Preferably, this chamfer 3p can engage with the second edge portion 2b during locking for gradually inserting the independent tenon 3 into the insertion groove. From the top view and / or bottom view of the independent tenon 3, the longitudinal end portion 3a may include a longitudinally curved section 3x. The chamfer 3p may be arranged in the curved section 3x.

[0105] During the locking process, preferably during and / or between the first and second phases, the stop surface 12 and / or the lower mating surface 2j may engage with the independent tenon 3, for example with the tip portion 3i and / or the abutment member 13.

[0106] Figures 7a-7b Panels 1 and 2 can be assembled with each other (see arrow A1) to obtain Figures 4b-4d The configuration in [the system / system].

[0107] In any embodiment herein, the abutting member 13 may include a generally straight portion extending parallel to the longitudinal extension L, which may optionally be entirely straight, see, for example... Figures 5a-5h And 9c-9d. Preferably, the straight portion is arranged longitudinally inside the curved section 3x and / or the chamfer 3p.

[0108] During the preferred folding displacement of the relative vertical shift A1, a pair of third edge portions 1c, 1c', 2c and fourth edge portions 1d, 2d can be configured to lock together by a relative tilting displacement of the third and fourth edge portions against each other, for example by tilting the third edge portions against the fourth edge portions. See Figure 1eThe edge portions 1c, 1c', 2c, 1d, and 2d can be locked vertically and horizontally to each other, for example, by locking devices integrally formed with the core 25 of the panels 1, 1', and 2. For example, the edge portions can be interlocked by mating tenons 14 and tenon grooves 15, and by locking elements 17 provided on the strip 18 engaging with locking grooves 19, see, for example, [reference needed]. Figure 8d Alternatively, the edge portions may be similar to the embodiments of the first edge portions 1a, 2a and the second edge portions 1b, 2b described herein, for example in... Figures 2a-2f The embodiments 3a-3c, 4a-4g, 5a-5h, 6a-6c, 7a-7b, or 9a-9d are interlocked, and reference is made thereto. For example, locking devices on the third edge portions 1c, 2c and the fourth edge portions 1d, 2d may be used, the locking devices comprising one or more independent tenons 3, such as... Figure 1b As shown. For other embodiments of edge portions 1c, 1c', 2c, 1d, 2d, we refer, for example, to pages 2, lines 13-22 of WO 2021 / 206611 A1 and... Figures 1a-1e And 2a-2e, the contents of which are hereby explicitly incorporated for reference.

[0109] The first edge portion 1a and the second edge portion 2b can be configured to be vertically unlocked by a relative vertical displacement A2 (preferably a forced relative vertical displacement) of the first edge portion and the second edge portion away from each other, preferably by a folding displacement, see, for example. Figure 1e , 7a -7e and 8a-8b. Alternatively or additionally, the first edge portion 1a and the second edge portion 2b can be configured to be vertically unlocked by a relative vertical shift A2' of repeated, preferably forced, relative vertical displacement of the first edge portion and the second edge portion away from and towards each other. By means of the folding displacement, the individual tenon 3, such as the locking portion 6, can be gradually moved out of the tenon groove 5 along the second edge portion 2b and inserted into the insertion groove 4 along the first edge portion 1a. Thus, the edge portions 1a and 2b can be gradually unlocked from each other. Similar to the discussion above, the relative vertical shifts A2 and A2' can also horizontally unlock the edge portions 1a and 2b, for example, by disengaging the locking element 7 from the locking groove 9. By unlocking the edge portions 1a and 2b, the first panel 1 and the second panel 2 can be detached from each other.

[0110] During the unlocking process, the second edge portion 2b can engage with the independent tenon 3 (e.g., locking portion 6) to move it into the insertion groove 4, see example Figures 7a-7bAnd 8a-8b (see arrow A2). For example, at least one of the group consisting of the lower mating surface 2j, the stop surface 12, the engagement portion 3y (see below) and the locking surface 5b may mate with a separate tenon, for example with the tip portion 3i and / or the abutment member 13.

[0111] Figures 4b-4d Panels 1 and 2 in the middle can be accessed through Figures 7a-7b The operations within are disassembled from each other (see arrow A2 or A2').

[0112] In some embodiments, such as Figures 8a-8c As shown, unlocking can be achieved via lifting element 16. Lifting element 16 may include a wedge-shaped portion 16a and a preferably inclined support portion 16b, see [reference]. Figure 8c This type of unlocking may be particularly suitable when panels 1 and 2 are arranged on a base floor 20, which is preferably substantially horizontal or flat / uniform. For example, the assembled first panel 1 and second panel 2 can be lifted or tilted together along the third edge portions 1c and 2c, for example, by inserting a lifting element 16 between the back surface 2f of the second panel 2 and the base floor 20. For example, the lifting element 16 can be gradually moved below the back surface 2f, and the assembled panels 1 and 2 can be gradually lifted vertically via the wedge portion 16a. When inserted, the back surface 2f can thus rest on the support portion 16b. Thereafter, a force F can be applied to the front surface 1e of the first panel 1, thereby causing the first edge portion 1a and the second edge portion 2b to be vertically displaced relative to each other by A2, and thus can become vertically unlocked, see [reference]. Figure 8b By applying a greater force F, unlocking can be done faster.

[0113] When unlocked by repeated relative vertical displacement A2' using lifting element 16, force F can be repeatedly applied to the front face 1e of the first panel 1, such that each application of force F causes the first and second edge portions to be vertically displaced relative to each other away from each other. When the force is released from the front face 1e and / or when force F' is applied to the front face 2e of the second panel 2, the first and second edge portions are fixed substantially vertically relative to each other, or they become vertically displaced relative to each other, preferably this is achieved at least in part by means of the inherent spring force obtained by applying force F.

[0114] In some embodiments, such as Figure 7c-7fAs shown, a freestanding tool 22, such as an elongated rod, can be used to unlock edge portions 1a, 2b and thus remove panels 1, 2. Preferably, the freestanding tool 22 includes a cylindrical end portion 23, for example, having a cylindrical cross-section along its entire length, but other geometries are also possible. In a non-limiting embodiment, the thickness TT of the freestanding tool can be 0.5-2.0 mm, preferably 0.8-1.5 mm, for example 1.1 mm. The freestanding tool 22 can be inserted between the outer lower portion 3n of the freestanding tongue 3 and the engagement portion 3y of the second edge portion 2b arranged below the tongue groove 5 (see arrow AW), such that the freestanding tongue 3, such as the locking portion 6, can be gradually moved out of the tongue groove 5 along the second edge portion 2b and inserted into the insertion groove 4 along the first edge portion 1a. Preferably, the outer lower portion 3n includes a cavity 3d into which the freestanding tool 22 can be inserted. See Figure 7c The joining portion 3y can be arranged vertically below the stop surface 12. Therefore, the edge portions 1a and 2b can be gradually unlocked from each other.

[0115] Other unlocking methods can also be considered, especially those described in WO 2022 / 197234 A1, page 18, line 22 to page 21, line 10, as well as in Figures 13, 14a-14d, 15a-15b and 16a-16b, the contents of which are explicitly incorporated herein for reference.

[0116] See Figure 5a and 5e During locking and / or unlocking, the independent tenon 3 may be straightened at least partially, for example substantially completely, along its longitudinal extension. For example, when the independent tenon is displaced into the insertion groove 4, the outermost surface 3m of the independent tenon, preferably at least at the locking portion 6, may be straightened. Preferably, it straightens from a raised shape (see curve Q) to a less raised shape, for example, being substantially linear, such as any local portion of the outermost surface 3m forming a maximum angle of 0°-10°, preferably 0°-5°, more preferably 0°-2°, relative to the inner portion 4a, or being completely straight (i.e., 0°) (see curve S). For example, the outermost surface 3m may be specified in a top view of the independent tenon 3 and / or the first panel 1.

[0117] When at least one independent tenon 3 is provided along the short edge portions 1a, 2a, for example in Figure 1a In the middle, the short edge portion can be locked or unlocked by folding, and the long edge portion, including the integrally formed locking device, can be locked or unlocked by tilting. When at least one independent tenon 3 is provided along the short edge portions 1a and 2a and at least one independent tenon 3 is provided along the long edge portions 1c and 2c, for example in Figure 1b In the middle, the short or long edge portion can be locked or unlocked by tilting and / or folding.

[0118] Various aspects of this disclosure have been described above with reference to multiple embodiments. However, as will be readily understood by those skilled in the art, other embodiments besides those disclosed above are also possible within the scope of this disclosure. For example, it is clear that... Figures 2a-2f Any of the embodiments in 3a-3c, 4a-4g, 5a-5h, 6a-6c, 7a-7g, 8a-8d, and 9a-9d can be as follows Figure 1c Alternatively, it can be implemented in a locked state as in 1d, with appropriate modifications depending on whether the second edge portion 2b includes a single stop surface 12 or two stop surfaces at its two opposite end sections 11. Furthermore, it should be emphasized that the lifting element 16 described herein is optional when removing panels 1, 2 by forced relative vertical displacement A2, optionally repeated relative vertical displacement A2'. For example, the panels can be manually removed by forced relative vertical displacement A2, optionally repeated relative vertical displacement A2'. Furthermore, it should be emphasized that any panel 1, 2, 1' herein may contain any core material and / or include any layer, or combination thereof, as described at the end of the inventive summary herein, and thus referenced. Finally, it is clear that any folding displacement described herein, such as the folding displacement of edge portions 1a, 2b, can be achieved by tilting adjacent edge portions such as the third edge portion 2c, see [reference needed]. Figure 1e and 8a -8b.

Claims

1. A set of panels, such as a set of architectural panels, the set of panels including a first panel (1) and a second panel (2) and a locking device for locking a first edge portion (1a) of the first panel to a second edge portion (2b) of the second panel, wherein the locking device includes a horizontal locking device and a vertical locking device, the vertical locking device comprising: An independent tenon (3) is disposed in an insertion groove (4) of the first edge portion (1a), the longitudinal extension (L) of the independent tenon (3) extending along the first edge portion (1a), wherein the independent tenon (3) includes a flexible member (3b) configured to face the inner portion (4a) of the insertion groove (4) when the independent tenon (3) is disposed in the insertion groove (4), the flexible member (3b) being configured to displace the independent tenon (3) outward during locking or unlocking; and A tenon groove (5) is provided in the second edge portion (2b) and extends along the second edge portion (2b). The locking device is configured such that, in the vertically locked state of the first edge portion (1a) and the second edge portion (2b): The abutment member (13) provided at the longitudinal end portion (3a) of the independent tenon (3) engages with the stop surface (12) of the second edge portion (2b). The locking portion (6) of the independent tenon (3) engages with the tenon groove (5), and The stop surface (12) is arranged to be closer to the inner portion (4a) of the insertion groove (4) than the outermost section (6a) of the locking portion (6), and The locking portion (6) of the independent tenon (3) is longitudinally bent. During the locking process, the locking portion (6) is configured to gradually insert into the insertion groove (4) along the first edge portion (1a) in a first stage, and in a subsequent second stage, the locking portion (6) is configured to gradually insert into the tenon groove (5) along the second edge portion (2b).

2. The set of building panels according to claim 1, wherein, The locking device is configured such that, in the vertically locked state, the horizontal distance (D2) from the inner portion (4a) to the stop surface (12) is less than the horizontal distance (D1) from the inner portion (4a) to the locking portion (6).

3. The set of building panels according to claim 1 or 2, wherein, The locking device is configured such that, in the vertically locked state, the stop surface (12) forms an angle of 0°-10°, for example 0°-5° or 0°-2°, relative to the vertical direction (Z). ).

4. A set of architectural panels according to any one of the preceding claims, wherein, The stop surface (12) is one of at least two stop surfaces (12), wherein the two stop surfaces of the at least two stop surfaces (12) are arranged on opposite sides of the tenon groove (5).

5. A set of architectural panels according to any one of the preceding claims, wherein, Along the second edge portion (2b), the stop surface (12) is arranged adjacent to the tenon groove (5).

6. A set of panels according to any one of the preceding claims, wherein, The stop surface (12) is located at the same vertical height as a portion of the tenon groove (5).

7. A set of panels according to any one of the preceding claims, wherein, The locking device is configured such that, in the vertically locked state, the stop surface (12) prevents the independent tenon (3) from moving outward from the insertion groove (4), preferably at least preventing the independent tenon (3) from moving outward from the insertion groove (4) in the horizontal direction.

8. A set of architectural panels according to any one of the preceding claims, wherein, The stop surface (12) is disposed on a separate material (24) that is different from the other parts of the second edge portion (2b), the separate material being, for example, a polymer-based material, a wood material or a filling material, preferably disposed in the tongue groove (5).

9. A set of panels according to any one of the preceding claims, wherein, The abutting member (13) is one of at least two abutting members (13), wherein each of the two opposing longitudinal end portions (3a) of the independent tenon (3) includes a corresponding abutting member of the at least two abutting members (13).

10. A set of architectural panels according to any one of the preceding claims, wherein, In the vertically locked state, the abutting member (13) is pre-tensioned against the stop surface (12).

11. A set of architectural panels according to any one of the preceding claims, wherein, The longitudinal length (L1) of the independent tenon (3) exceeds the longitudinal length (L2) of the tenon groove (5).

12. A set of architectural panels according to any one of the preceding claims, wherein, The longitudinal length (L3) of the second edge portion (2b) exceeds the longitudinal length (L2) of the tenon groove (5).

13. A set of architectural panels according to any one of the preceding claims, wherein, In the vertically locked state, the locking portion (6) protrudes from the insertion groove (4) by at least 50%, preferably at least 70%, of the longitudinal length (L1) of the independent tenon (3).

14. A set of architectural panels according to any one of the preceding claims, wherein, The first edge portion (1a) of the first panel and the second edge portion (2b) of the second panel are short edge portions, which are shorter than the long edge portions of the first panel (1) and the second panel (2).

15. A set of architectural panels according to any one of the preceding claims, wherein, During the locking process, the second edge portion (2b) engages with the locking portion (6) to displace the independent tenon (3) into the insertion groove (4).

16. A set of panels according to any one of the preceding claims, wherein, Each of the flexible members (3b) extends from the corresponding base (3r) of the independent tenon (3). The flexible member (3b) extending from the base (3r) arranged at the longitudinal end portion (3a) extends from the longitudinal inner surface (3u) of the base (3r) and is able to bend around the longitudinal inner surface (3u) of the base (3r).

17. A set of architectural panels according to any one of the preceding claims, wherein, The horizontal locking device includes a locking element (7) disposed on a strip (8) extending horizontally outward from the lower portion of the first edge portion (1a) and a locking groove (9) disposed in the second edge portion (2b), the locking element (7) and the locking groove (9) being configured to cooperate with each other to provide a horizontal locking state for the first edge portion (1a) and the second edge portion (2b).

18. A set of architectural panels according to any one of the preceding claims, wherein, The first edge portion (1a) and the second edge portion (2b) are configured to be vertically unlocked by forced relative vertical displacement (A2) of the first edge portion and the second edge portion moving away from each other and / or by repeated forced relative vertical displacement (A2') of the first edge portion and the second edge portion moving away from and toward each other.

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