HUE030211T2 - Mechanical locking system for floor panels - Google Patents

Description

Description

TECHNICAL FIELD

[0001] The disclosure generally relates to the field of mechanical locking systems for floor panels and building panels. The disclosure shows floorboards, locking systems, installation methods and production methods.

FIELD OF APPLICATION OF THE INVENTION

[0002] The present invention is particularly suitable for use in floating floors, which are formed of floor panels which are joined mechanically with a locking system integrated with the floor panel, i.e. mounted at the factory, are made up of one or more upper layers of veneer, decorative laminate powder based surfaces or decorative plastic material, an intermediate core of wood-fibre-based material or plastic material and preferably a lower balancing layer on the rear side of the core.

[0003] The following description of known technique, problems of known systems and objects and features of the invention will therefore, as a non-restrictive example, be aimed above all at this field of application and in particular at panels formed as rectangular floor panels with long and shorts edges intended to be mechanically joined to each other on both long and short edges.

[0004] The long and short edges are mainly used to simplify the description of the invention. The panels may be square. The invention is preferably used on the short edges. It should be emphasised that the invention may be used in any floor panel and it may be combined with all types of known locking system formed on the long edges, where the floor panels are intended to be joined using a mechanical locking system connecting the panels in the horizontal and vertical directions on at least two adjacent sides.

[0005] The invention may also be applicable to, for instance, solid wooden floors, parquet floors with a core of wood or wood-fibre-based material and a surface of wood or wood veneer and the like, floors with a printed and preferably also varnished surface, floors with a surface layer of plastic or cork, linoleum, rubber. Even floors with hard surfaces such as stone, tile and similar materials are included and floorings with soft wear layer, for instance needle felt glued to a board. The invention may also be used for joining building panels which preferably contain a board material for instance wall panels, ceilings, furniture components and similar.

BACKGROUND OF THE INVENTION

[0006] Laminate flooring usually comprises a core of a 6-12 mm fibre board, a 0.2-0.8 mm thick upper decorative surface layer of laminate and a 0.1-0.6 mm thick lower balancing layer of laminate, plastic, paper or like material. A laminate surface comprises of melamine-impregnated paper. The most common core material is fi- breboard with high density and good stability usually called HDF - High Density Fibreboard. Sometimes also MDF - Medium Density Fibreboard - is used as core.

[0007] Traditional laminate floor panels of this type have been joined by means of glued tongue-and-groove joints. In addition to such traditional floors, floor panels have been developed which do not require the use of glue and instead are joined mechanically by means of so-called mechanical locking systems. These systems comprise locking means, which lock the panels horizontally and vertically. The mechanical locking systems are usually formed by machining of the core of the panel. Alternatively, parts of the locking system may be formed of a separate material, for instance aluminium or HDF, which is integrated with the floor panel, i.e. joined with the floor panel in connection with the manufacture thereof.

[0008] The main advantages of floating floors with mechanical locking systems are that they are easy to install. They may also easily be taken up again and used once more at a different location.

DEFINITION OF SOME TERMS

[0009] In the following text, the visible surface of the installed floor panel is called "frontside”, while the opposite side of the floor panel, facing the sub floor, is called "rear side". The edge between the front and rear side is called "jointedge". By "horizontalplane"is meanta plane, which extends parallel to the outer part of the surface layer. Immediately juxtaposed upper parts of two adjacent joint edges of two joined floor panels together define a "vertical plane" perpendicular to the horizontal plane. By "vertical locking" is meant locking parallel to the vertical plane in D1 direction. By "horizontallocking"is meant locking parallel to the horizontal plane in D2 direction.

[0010] By "up" is meant towards the front side, by "down" towards the rear side, by "inwardly" mainly horizontally towards an inner and centre part of the panel and by "outwardly"mainly horizontally away from the centre part of the panel.

[0011] By "locking systems" are meant co acting connecting elements, which connect the floor panels vertically and/or horizontally.

RELATED ART AND PROBLEMS THEREOF

[0012] For mechanical joining of long edges as well as short edges in the vertical and in the first horizontal direction perpendicular to the edges several methods may be used. One of the most used methods is the angle-snap method. The long edges are installed by angling. The panel is than displaced in locked position along the long side. The short edges are locked by horizontal snapping. The vertical connection is generally a tongue and a groove. During the horizontal displacement, a strip with a locking element is bent and when the edges are in contact, the strip springs back and a locking element en- ters a locking groove and locks the panels horizontally. Such a snap connection is complicated since a hammer and a tapping block may need to be used to overcome the friction between the long edges and to bend the strip during the snapping action.

[0013] Similar locking systems may also be produced with a rigid strip and they are connected with an anglingangling method where both short and long edges are angled into a locked position.

[0014] Recently new and very efficient locking systems have been introduced with aseparateflexibleordisplace-able integrated tongue on the short edge that allows installation with only an angling action, generally referred to as "vertical folding". Such a system is described in WO 2006/043893 (Välinge Innovation AB.

[0015] Several versions are used on the market as shown in figures 1 a-1 f. Figure 1a, 1b show a flexible tongue 30 with a flexible snap tab extending from the edge. Figure 1c, 1d show a displaceable tongue with an inner flexible part that is bendable horizontally in a cross section of the tongue or along the joint. Such systems are referred to as vertical snap systems and they provide an automatica locking during the folding action.

[0016] The locking system may also be locked with a side push action such that a displaceable tongue 30 is pushed into a locked position from the long side edge when adjacent sort side edges are folded down to the sub floor. Such a side push action could be difficult to combine with a simple angling and the friction may be too strong for wide panels.

[0017] Figure 1 e shows a fold down system with a flexible tongue 30 that is made in one piece with the core. Figure 1 f shows a long edge locking system in a fold down system that is connected with angling.

[0018] Although such systems are very efficient, there is still room for improvements. Vertical snap systems are designed with the tongue on the strip panel. The reason is that an inclined sliding surface can only be formed on the fold panel when the upper edges are made without a bevel and this is generally the case. It is difficult to insert the separate tongue 30 during production into a groove 40 over a strip 6 comprising a locking element 8. The locking force is dependant on the snapping resistance. High locking force can only be accomplished with high snapping resistance when the tongue is pressed inwardly and when it snaps back into a tongue groove 40. This creates separation forces that tend to push the panels apart during folding. The locking may lose its strength if the flexibility and pressing force of the tongue decreases over time. The flexibility must be considerable and allow that a flexible tong is displaced in two directions about 1-2 mm. The material, which is used to produce such tongues, is rather expensive and glass fibres are generally used to reinforce the flexible tongue.

[0019] EP 2270291 A1 discloses a device having a core made of wooden material or wooden material-plastic mixture in a direction perpendicular to a visible side. A groove is provided in a recess opened to a lower side and opened in a direction of the recess. An upwardly aligned projection has another recess lying opposite to the groove. A spring element, e.g. a ring, is arranged in the latter recess and deformed in a direction parallel to the visible side in a compressed and/or deformable manner. The spring element is inserted into a structural panel.

[0020] WO 2011/012104 A2 discloses a covering comprising panels that can be connected to each other mechanically. The covering has adjacent first and second panels, each having a groove on the sides thereof that are complementary to each other. The grooves each have upper and lower groove sides having different lengths and in one of the grooves a spring is arranged that can be moved relative to the panel at least in parts. The spring is suitable for engaging in the corresponding groove of the adjacent panel when the adjacent panels are connected, and the spring has at least one projection which points in the direction of the area of the longer groove sides of the other groove that protrudes relative to the shorter groove sides. The projection is intended to be moved transversely to the laying plane of the panels in the event of contact with the area of the groove side, wherein the projection is operatively connected to a locking section of the spring. The locking section can be moved in the direction of the groove of the adjacent panel as a result of the motion of the projection [0021] It would be a major advantage if the separate tongue could be fixed to the fold panel and if snapping could be eliminated in a system that locks automatically during folding.

SUMMARY

[0022] An overall objective of embodiments of the present invention is to provide a locking system for primarily rectangular floor panels with long and short edges installed in parallel rows, which allows that the short edges may be locked to each other automatically without a snap action that creates a locking resistance and separation forces of the short edges during folding. A specific objective is to provide a locking system with a separate displaceable tongue on the fold panel that may lock without any contact with the sharp upper edge of the strip panel and that the tongue is displaced essentially in one direction only from an inner part of a groove and outwardly- [0023] The above objects of embodiments of the invention are achieved wholly or partly by locking systems and floor panels according to independent claim 1. Embodiments of the invention are evident from the dependent claims and from the description and drawings.

[0024] A first aspect of the invention are building panels provided with a locking system for vertical locking of a first and a second building panel by a vertical displacement of the panels relative each other. A sidewardly open tongue groove is provided at an edge of the first building panel. A strip protrudes below the tongue groove and outwardly beyond the upper part of the edge of said first panel. A displaceable tongue is provided in a sidewardly open displacement groove at an edge of the second building panel. The displaceable tongue comprises a main body extending along the edge of the second panel and preferably a tongue locking surface, located at an upper and outer part of the displaceable tongue, configured to cooperate with a groove locking surface of the tongue groove for a vertical locking of the first and the second building panel. The displaceable tongue comprises an inner part, spaced inwardly from an upper part of an edge of said second panel, the inner part comprises a tongue pressing surface configured to cooperate with a strip pressing surface on the strip. The displaceable tongue is configured to be displaced into the tongue groove when the tongue and the strip pressing surface are displaced vertically against each other to obtain the vertical locking.

[0025] The displaceable tongue is an injection-moulded tongue.

[0026] The displaceable tongue is asymmetric and comprises a protrusion and the second panel comprises a cavity for housing the protrusion.

[0027] The protrusion may comprise a flexible part.

[0028] The strip may be provided with a locking element that cooperates with a downwardly open locking groove formed on the second panel for locking the first and the second building panel in a horizontal direction.

[0029] The tongue pressing surface is positioned on the protrusion and the strip pressing surface is located on the locking element.

[0030] The strip pressing surface is located on an inclined surface of the locking element that is directed towards the edge of the first building panel.

[0031] The locking system may comprise a cavity that extends from the displacement groove to the locking groove.

[0032] The strip and the tongue pressing surfaces may be inclined against a horizontal plane with an angle of about 25 to 75 degrees.

[0033] The displacement groove may be inclined and comprise an inner part that extends downwards.

[0034] The building panels may be locked vertically by two pairs of cooperating surfaces comprising the groove locking surface and the tongue locking surface, and an upper part of the strip and a lower part of the edge of the second panel, respectively.

[0035] The groove locking surface and the tongue locking surface may be inclined against a horizontal plane.

[0036] The groove locking surface and the tongue locking surface may be inclined with an angle of about 10 to 60 degrees to a horizontal plane.

[0037] The displaceable tongue may be provided with a flexible friction element.

[0038] The displaceable tongue may comprise at least two protrusions extending from the main tongue body and each protrusion may comprise said tongue pressing surface located at an outer part of the protrusion that during locking is in contact with a locking element pro vided on the strip.

[0039] The building panel may be a floor panel and the outer part of the displaceable tongue is preferably in an unlocked position located in the displacement groove.

[0040] The displacement groove may extend vertically above the locking groove.

[0041] The locking groove may be located vertically below the upper part of the displacement groove.

[0042] An upper part of the locking element may be located vertically below the tongue locking surface of the displaceable tongue.

[0043] An upper part of the locking groove may be located vertically below the tongue locking surface of the displaceable tongue.

[0044] The innermost part of the displaceable tongue may be below the outermost part of such tongue.

[0045] The tongue pressing surface may be located vertically below the tongue locking surface.

[0046] An upper part of the locking element may be located in the lower half of an intermediate core of the first building panel.

[0047] The strip may be flexible such that it bends downwards during locking.

[0048] The cavity may be larger than the protrusion such that there is a space S of at least about 1-3 mm.

[0049] The displaceable tongue may be gradually inserted into the tongue groove from a tongue part, which is adjacent an installed long edge, to another tongue part adjacent a free long edge.

BRIEF DESCRIPTION OF THE DRAWINGS

[0050] The disclosure will in the following be described in connection to exemplary embodiments and in greater detail with reference to the appended exemplary drawings, wherein:

Figs 1a-f illustrate locking systems according to known technology.

Figs 2a-d illustrate a short edge locking system according to an embodiment of the invention.

Figs 3a-3d illustrate a short edge locking system according to preferred embodiments of the invention.

Figs 4a-e illustrate preferred embodiments of short edge locking systems.

Figs 5a-e illustrate vertical folding ofthree panels according to an embodiment of the invention.

Figs 6a-e illustrate the flexibility of the locking systems during locking and preferred embodiments of displaceable tongues.

Figs 7a-c illustrate tongue blanks according to em bodiments of the invention comprising several displaceable tongues.

DESCRIPTION OF EMBODIMENTS OF THE INVENTION

[0051] To facilitate understanding, several locking systems in the figures are shown schematically. It should be emphasised that improved or different functions may be achieved using combinations of the preferred embodiments.

[0052] All embodiments may be used separately or in combinations. Angles, dimensions, rounded parts, spaces between surfaces etc are only examples and may be adjusted within the basic principles of the invention.

[0053] Figures 2a -2d show a first preferred embodiment of a short edge locking system provided with a flexible and displaceable tongue 30 in an edge of a second panel T inserted in a displacement groove 40 and extending along the edge of the second panel. The displaceable tongue 30 has a tongue locking surface 31 located at an upper and outer part that cooperates with a groove locking surface 21 located at an inner and upper part of a tongue groove 20 formed in an adjacent edge of a first panel 1. The locking surfaces lock the panels in a first vertical direction. The locking surfaces are preferably inclined with an angle A2 that is about 10-60 degrees. The displacement groove is preferably also inclined and the outer part is closer to the panel surface than an inner part.

[0054] The first panel 1 comprises a protruding strip 6 that extends outwardly beyond a vertical plane VP. The strip comprises a locking element 8. The second panel T comprises a locking groove 14 that cooperates with the locking element 8 and locks the panels in a horizontal direction. The strip 6 has an upper part 6’, which is in contact with a lower part 37 of the adjacent edge and locks the panels in a second vertical direction.

[0055] The displaceable tongue 30 comprises a protrusion 34 extending from a main tongue body 36. The second panel T comprises at least one cavity 35 for housing the protrusion. The cavity extends from the displacement groove to the locking groove 14.

The cavity may be formed by a screw cutter or by displaceable saw blades.

The protrusion comprises a tongue pressing surface 32 which cooperates with a strip pressing surface 33 on the locking element. The strip pressing surface 33 and the tongue pressing surface 32 are inclined with an angle A1 which is preferably 25 - 75 degrees against a horizontal plane HP.

[0056] The displaceable tongue is displaced essentially in one direction towards the tongue groove 20 when the inclined pressing surfaces are sliding against each other during the vertical displacement of the adjacent edges. The tongue may be locked with a strong pressure against the groove locking surface 21 and the locking element 8 prevents the tongue from sliding back into the displacement groove.

[0057] One major problem related to a "press lock system" as described above is the risk that panel may split with a crack 50 between the displacement groove 40 and the locking groove 14 as shown in figure 2d. Therefore it is preferable that the upper parts of the locking groove 14a and the locking element 8a are made in the lower part of the floor panel, preferably below the centre line C that divides the floor panel in two equal parts, one upper part UP and one lower part LP. It is also preferable that the tongue pressing surface 32 is located vertically below the tongue locking surface 31. The tongue pressing surface and the tongue locking surface are preferably offset vertically and are preferably located on different horizontal planes H2, HI. It is also preferred that an upper part of the locking element 8a and/or an upper part of the locking groove 14a are located vertically below the tongue locking surface 31. The innermost part of the displaceable tongue 30 is preferably located below the outermost part of such tongue.

[0058] The cavities 35 are preferably formed by rotating saw blades and comprise preferably an upper rounded part with an outer part 35b that is located above an inner part 35a as shown in figure 2d. The cavity is preferably formed such that it intersects the inner part 14b of the locking groove 14.

[0059] Figures 3a -3d show the locking function during the vertical displacement of the second panel 1 ’ against the first panel 1. The displaceable tongue 30 is gradually pressed into the tongue groove 20 by the cooperating pressing surfaces 32,33 and the panels are locked vertically with two pairs of cooperating locking surfaces, the tongue locking surface 31 and the groove locking surface 21 and an upper part 6’ of the strip 6 and a lower part 37 of the adjacent edge T.

[0060] Figures 4a-4e show different embodiments. Figure 4a shows a displaceable tongue 30 with a protrusion 34 located under the main tongue body. The locking groove 14 is located vertically under an upper part of the displacement groove 40. Figure 4b shows a tongue pressing surface 32 that locks against a strip pressing surface that is not active in the horizontal locking. Figure 4c shows that the same locking surface 33 on the locking element 8 may be used as a pressing surface and as a locking surface for the horizontal locking. Figure 4d shows that the strip pressing surface may be formed on a separate pushing rod 42. Figure 4e shows a protrusion 34 that comprises a curved cross section and a locking element that comprises an upper part 44 formed as local protrusion that protrudes above the inner part of the locking groove 14 and into the cavities 35.

[0061] Figures 5a -5e show vertical folding of three panels wherein the long edges 2,2’ are connected with angling and the short edges 1,1’ with a scissor like motion that combines angling and vertical displacement. Figure 5b shows that the displaceable tongue is gradually inserted into the tongue groove 20 from one part of the edges that is adjacent to the installed long edge 2 to the other free long edge. Figure 5c shows the tongue in the cross section A-A and figures 5d, 5e show the tongue position in the cross sections B-B, and C-C. The strip 6 and the locking element 8 are in this embodiment designed such that they bend backwards during locking and this facilitates locking since the necessary flexibility may be provided partly or completely with such strip bending. The locking groove is positioned vertically under the lower part of the displacement groove 40.

[0062] Figure 6a shows that the locking system may be formed such that several parts are flexible for example the protrusion 34, the locking strip 6 and the locking element 8. This flexibility may be used to reduce or eliminate production tolerances and to facilitate an easy and strong locking. Figure 6a shows that the strip 6 may be bent downwards and the locking element 8 may be bent downwards and outwardly. Such a strip bending may facilitate locking that may even be accomplished with a displaceable tongue that comprises a limited flexibility such as a tongue that essentially comprises wood fibre material. A locking may be accomplished with a flexibility where a part of the displaceable tongue 30 is bended or compressed marginally for example only about 0,1 -1,0 mm in the horizontal direction.

[0063] Figure 6b and 6c show embodiments of the tongue. The displaceable tongue 30 may be fixed into the displaceable groove with a friction connection 38. The protrusion 34 may comprise flexible parts 39 that create a pre tension against the tongue groove 20. The cavity 35 may be considerably larger than the protrusion and preferably there is a space S that may be about 1-3 mm.

[0064] Figure 6d shows a locking system with a sliding surface 45 that protrudes beyond a vertical plane VP. The tongue groove 20 is preferably formed on an inclined edge surface 46. Such an embodiment offers the advantages that the displaceable tongue 30 may be pressed inwardly and the conventional two-way snapping action may be combined with a one way pressing motion that may be used to create the final locking.

[0065] Figure 6e shows a separate tongue 30, located in a sideway open groove 40 on the second panel T, comprising an upwardly extending snap tab 47 that cooperates with a downwardly extending sliding surface 45 that is located on the first panel 1 and that protrudes beyond the upper edge and the vertical plane VP. The second panel T comprises preferably an inclined edge surface 46’ located above and and/or below the tongue 30. An easy snapping may be obtained even with panels that have straight and sharp upper adjacent edges. The snap tab may be replaced with a displaceable tongue that comprises flexible snapping protrusions along its length. The locking system shown in figure 1d may also be adjusted such that it comprises inclined edge surfaces and such a design may be used to increase the strength of the joint.

[0066] The locking system according to the invention may also be formed without a locking grove 14 and a locking element 8 such that it only locks the edges in a vertical direction. The locking element 8 may be replaced with local protrusions that extend upwards from a strip 6 and are in locked position located in the cavities. The short edges may be locked horizontally by friction between the long edges.

[0067] All locking systems may be designed such that they can be unlocked with angling and/or sliding along the edges.

[0068] Figure 7a, 7b show a tongue blank 43 that comprise several displaceable tongues that are preferably asymmetric along the tongue length. Figure 7a shows injection-moulded tongues 30 and figure 7b shows displaceable tongues 30 made of a wood based material that is preferably machined and punched.

[0069] The cavities 35 that are preferably formed by rotating saw blades comprises an upper part that is rounded and may comprise an inner part that is located below an outer part.

The locking system may be partly or completely formed by carving tools.

Claims 1. Building panels provided with a locking system for vertical locking of a first (1) and a second building panel (T) by a vertical displacement of the panels (1,1’) relative each other, the building panels comprising: a sidewardly open tongue groove (20) provided at an edge of the first building panel (1), and a strip (6) protruding below the tongue groove (20) and outwardly beyond an upper part of the edge of said first building panel (1); a displaceable tongue (30) provided in a sidewardly open displacement groove (40) at an edge of the second building panel, the displaceable tongue (30) comprising a main body (36) extending along the edge of the second panel and a tongue locking surface (31) located at an upper and outer part of the tongue, the tongue locking surface being configured to cooperate for vertical locking with a groove locking surface (21) of the tongue groove (20), wherein the displaceable tongue (30) comprises an inner part (34) spaced inwardly from an upper part of the edge of said second panel (T), and wherein the strip (6) comprises a locking element (8) configured to cooperate with a downwardly open locking groove (14), formed on the second panel, for locking of the first and the second building panel (1 ,T) in a horizontal direction, characterised in that the inner part comprises a tongue pressing surface (32) configured to cooperate with a strip pressing surface (33) on the strip (6), such that the displaceable tongue (30) is displaced into the tongue groove when the tongue pressing surface and the strip pressing surface (32,33) are displaced vertically against each other to obtain a locking of the first and the second building panel (1,1’) in a vertical direction, that said displaceable tongue (30) is asymmetric and comprises a protrusion (34) extending from the main body (36) and the second panel (1’) comprises a cavity (35) for housing the protrusion, that the tongue pressing surface (32) is provided on the protrusion (34) and the strip pressing surface (33) is provided on the locking element (8), that the strip pressing surface (33) is provided at an inclined surface of the locking element (8) directed towards the edge of the first building panel, and that the displaceable tongue is an injection-moulded tongue. 2. The building panels as claimed in claim 1, wherein the strip pressing surface (33) is a locking surface for the horizontal locking. 3. The building panels as claimed in claim 1, wherein the strip pressing surface (33) is provided at an upper part of the locking element (8). 4. The building panels as claimed in any one of the claims 1-3, wherein the cavity (35) extends from the displacement groove (40) to the locking groove (14). 5. The building panels as claimed in any one of claims 1-4, wherein an upper part of the displacement groove (40) is located vertically above the locking groove (14). 6. The building panels as claimed in any one of claims 1-5, wherein an upper part (14a) of the locking groove (14) is located vertically below the tongue locking surface (31) of the displaceable tongue (30). 7. The building panels as claimed in any one of the preceding claims, wherein the tongue and the strip pressing surface (32,33) are inclined against a horizontal plane (HP) with an angle (A1) of about 25 to 75 degrees. 8. The building panels as claimed in any one of the preceding claims, wherein the displacement groove (40) is inclined and comprises an inner part that extends downwards. 9. The building panels as claimed in any one of preceding claims, wherein the first and the second building panel (1 ,T) are locked vertically by a first and a second pair of cooperating surfaces, the first pair comprises the tongue locking surface (31) and the groove locking surface (21), the second pair comprises an upper part of the strip (6’) and a lower part of the edge (37) of the second panel (T). 10. The building panels as claimed in any one of the preceding claims, wherein said groove locking surface (21 ) and tongue locking surface (31 ) are inclined against a horizontal plane. 11. The building panels as claimed in claim 10, wherein the groove locking surface (21) and the tongue locking surface are inclined with an angle (A2) of about 10 to about 60 degrees with respect to a horizontal plane (HP) of the panel. 12. The building panels as claimed in any one of preceding claims, wherein the displaceable tongue (30) comprises a flexible friction element (38). 13. The building panels as claimed in any one of the preceding claims, wherein the displaceable tongue (30) comprises at least two protrusions (34) extending from the main body (36), wherein each protrusion comprises said tongue pressing surface (32) at an outer part of the protrusion, wherein each tongue pressing surface is configured to be in contact during locking with a locking element provided on the strip. 14. The building panels as claimed in any one of the preceding claims, wherein the inner part of the displaceable tongue (30) is below the outer part of the displaceable tongue. 15. The building panels as claimed in any one of the preceding claims, wherein the tongue pressing surface (32) is located vertically below the tongue locking surface (31).

Patentansprüche 1. Gebäude-Paneele, die mit einem Verriegelungssystem zum vertikalen Verriegeln eines ersten und eines zweiten Gebäude-Paneels (1, T) mittels einer vertikalen Verschiebung der Paneele (1, T) relativ zueinander versehen sind, wobei die Gebäude-Paneele umfassen: eine seitlich offene Feder-Nut (20), die sich an einer Kante des ersten Gebäude-Paneels befindet, sowie einen Streifen (6), der unterhalb der Feder-Nut (20) und nach außen über einen oberen Teil der Kante des ersten Gebäude-Paneels (1) hinaus vorsteht; eine verschiebbare Feder (30), die sich an einer seitlich offenen Verschiebungs-Nut (40) an einer Kante des zweiten Gebäude-Paneels befindet, wobei die verschiebbare Feder (30) einen

Hauptkörper (36), der sich an der Kante des zweiten Paneels entlang erstreckt, sowie eine Feder-Verriegelungsfläche (31) umfasst, die sich an einem oberen und äußeren Teil der Feder befindet, wobei die Feder-Verriegelungsfläche so eingerichtet ist, dass sie zum vertikalen Verriegeln mit einer Nut-Verriegelungsfläche (21 ) der Feder-Nut (20) zusammenwirkt, und die verschiebbare Feder (30) einen inneren Teil (34) umfasst, der von einem oberen Teil der Kante des zweiten Paneels (T) nach innen be-abstandet ist, und wobei der Streifen (30) ein Verriegelungselement (8) umfasst, das so eingerichtet ist, dass es mit einer nach unten offenen Verriegelungsnut (14) zusammenwirkt, die an dem zweiten Paneel ausgebildet ist, um das erste und das zweite Gebäude-Paneel (1, T) in einer horizontalen Richtung zu verriegeln, dadurch gekennzeichnet, dass der innere Teil eine Feder-Pressfläche (32) umfasst, die so eingerichtet ist, dass sie mit einer Streifen-Pressfläche (33) an dem Streifen (6) so zusammenwirkt, dass die verschiebbare Feder (30) in die Feder-Nut hinein verschoben wird, wenn die Feder-Pressfläche und die Strei-fen-Pressfläche(32,33)vertikalzueinanderver-schoben werden, um ein Verriegeln des ersten und des zweiten Gebäude-Paneels (1, T) in einer vertikalen Richtung zu erreichen, dass die verschiebbare Feder (30) asymmetrisch ist und einen Vorsprung (34) umfasst, der sich von dem Hauptkörper (36) aus erstreckt, und das zweite Paneel (1 ’) einen Hohlraum (35) zum Aufnehmen des Vorsprungs umfasst, dass die Feder-Pressfläche (32) sich an dem Vorsprung (34) befindet und sich die Streifen-Pressfläche (33) an dem Verriegelungselement (8) befindet, dass sich die Streifen-Pressfläche (33) an einer geneigten Fläche des Verriegelungselementes (8) befindet, die zu der Kante des ersten Gebäude-Paneels hin gerichtet ist, und dass die verschiebbare Feder eine spritzgegossene Feder ist. 2. Gebäude-Paneele nach Anspruch 1, wobei die Streifen-Pressfläche (33) eine Verriegelungsfläche für das horizontale Verriegeln ist. 3. Gebäude-Paneele nach Anspruch 1, wobei sich die Streifen-Pressfläche (33) an einem oberen Teil des Verriegelungselementes (8) befindet. 4. Gebäude-Paneele nach einem der Ansprüche 1-3, wobei sich der Hohlraum (35) von der Verschiebungs-Nut (40) zu der Verriegelungs-Nut (14) erstreckt. 5. Gebäude-Paneele nach einem der Ansprüche 1-4, wobei ein oberer Teil der Verschiebungs-Nut (40) vertikal oberhalb der Verriegelungs-Nut (14) angeordnet ist. 6. Gebäude-Paneele nach einem der Ansprüche 1-5, wobei ein oberer Teil (14a) der Verriegelungs-Nut (14) vertikal unterhalb der Feder-Verriegelungsfläche (31) der verschiebbaren Feder (30) angeordnet ist. 7. Gebäude-Paneele nach einem der vorangehenden Ansprüche, wobei die Feder und die Streifen-Pressfläche (32, 33) zu einer horizontalen Ebene (HP) in einem Winkel (A1 ) von ungefähr 25 bis 75° geneigt sind. 8. Gebäude-Paneele nach einem der vorangehenden Ansprüche, wobei die Verschiebungs-Nut (40) geneigt ist und einen inneren Teil umfasst, der sich nach unten erstreckt. 9. Gebäude-Paneele nach einem der vorangehenden Ansprüche, wobei das erste und das zweite Gebäude-Paneel (1, T) über ein erstes und ein zweites Paar zusammenwirkender Flächen vertikal verriegelt werden, und das erste Paar die Feder-Verriegelungsfläche (31) sowie die Nut-Verriegelungsfläche (21 ) umfasst und das zweite Paar einen oberen Teil des Streifens (6’) sowie einen unteren Teil der Kante (37) des zweiten Paneels (T) umfasst. 10. Gebäude-Paneele nach einem der vorangehenden Ansprüche, wobei die Nut-Verriegelungsfläche (21) und die Feder-Verriegelungsfläche (31) zu einer horizontalen Ebene geneigt sind. 11. Gebäude-Paneele nach Anspruch 10, wobei die Nut-Verriegelungsfläche (21) und die Feder-Verriegelungsfläche in einem Winkel (A2) von ungefähr 10 bis ungefähr60° in Bezug auf eine horizontale Ebene (HP) des Paneels geneigt sind. 12. Gebäude-Paneele nach einem der vorangehenden Ansprüche, wobei die verschiebbare Feder (30) ein flexibles Reibungselement (38) umfasst. 13. Gebäude-Paneele nach einem der vorangehenden Ansprüche, wobei die verschiebbare Feder (30) wenigstens zwei Vorsprünge (34) umfasst, die sich von dem Hauptkörper (36) aus erstrecken, undjederVor-sprung die Feder-Pressfläche (32) an einem äußeren Teil des Vorsprungs umfasst und jede Feder-Pressfläche so eingerichtet ist, dass sie beim Verriegeln in Kontakt mit einem an dem Streifen befindlichen Verriegelungselement ist. 14. Gebäude-Paneele nach einem der vorangehenden

Ansprüche, wobei sich der innere T eil der verschiebbaren Feder (30) unterhalb des äußeren Teils der verschiebbaren Feder befindet. 15. Gebäude-Paneele nach einem der vorangehenden Ansprüche, wobei die Feder-Pressfläche (32) vertikal unterhalb der Feder-Verriegelungsfläche (31) angeordnet ist.

Revendications 1. Panneaux de construction dotés d’un système de verrouillage pour le verrouillage vertical d’un premier (1) et d’un second panneau de construction (T) par un déplacement vertical des panneaux (1, T) l’un par rapport à l’autre, les panneaux de construction comprenant : une cannelure à languette ouverte vers le côté (20) ménagée sur un bord du premier panneau de construction (1), et une bande (6) saillant sous la cannelure à languette (20) et vers l’extérieur au-delà d’une partie supérieure du bord dudit premier panneau de construction (1) ; une languette déplaçable (30) ménagée dans une cannelure de déplacement ouverte vers le côté (40) sur un bord du second panneau de construction, la languette déplaçable (30) comprenant un corps principal (36) s’étendant le long du bord du second panneau et une surface de verrouillage de languette (31 ) située sur une partie supérieure et extérieure de la languette, la surface de verrouillage de languette étant configurée pour coopérer pour le verrouillage vertical avec une surface de verrouillage de cannelure (21) de la cannelure de languette (20), dans lesquels la languette déplaçable (30) comprend une partie interne (34) espacée vers l’intérieur depuis une partie supérieure du bord dudit second panneau (T), et dans lesquels la bande (6) comprend un élé-ment de verrouillage (8) configuré pour coopérer avec une cannelure de verrouillage ouverte vers le bas (14), formée sur le second panneau, pour le verrouillage du premier et du second panneaux de construction (1, T) dans une direction horizontale, caractérisés en ce que la partie interne comprend une surface de pression de languette (32) configurée pour coopérer avec une surface de pression de bande (33) sur la bande (6), de sorte que la languette déplaçable (30) est déplacée dans la cannelure à languette, quand la surface de pression de languette et la surface de pression de bande (32, 33) sont déplacées verticalement l’une contre l’autre, afin d’obtenir un verrouillage du premier et du second panneau de construction (1, T) dans une direction verticale, que ladite languette déplaçable (30) est asymétrique et comprend une saillie (34) s’étendant depuis le corps principal (36) et le second panneau (T) comprend une cavité (35) pour loger la saillie, que la surface de pression de languette (32) est ménagée sur la saillie (34) et la surface de pression de bande (33) est ménagée sur l’élément de verrouillage (8), que la surface de pression de bande (33) est ménagée sur une surface inclinée de l’élément de verrouillage (8) dirigée vers le bord du premier panneau de construction, et que la languette déplaçable est une languette moulée par injection. 2. Panneaux de construction selon la revendication 1, dans lesquels la surface de pression de bande (33) est une surface de verrouillage pour le verrouillage horizontal. 3. Panneaux de construction selon la revendication 1, dans lesquels la surface de pression de bande (33) est ménagée sur une partie supérieure de l’élément de verrouillage (8). 4. Panneaux de construction selon l’une quelconque des revendications 1-3, dans lesquels la cavité (35) s’étend depuis la cannelure de déplacement (40) vers la cannelure de verrouillage (14). 5. Panneaux de construction selon l’une quelconque des revendications 1-4, dans lesquels une partie supérieure de la cannelure de déplacement (40) est située verticalement au-dessus de la cannelure de verrouillage (14). 6. Panneaux de construction selon l’une quelconque des revendications 1-5, dans lesquels une partie supérieure (14a) de la cannelure de verrouillage (14) est située verticalement sous la surface de verrouillage de languette (31) de la languette déplaçable (30). 7. Panneaux de construction selon l’une quelconque des revendications précédentes, dans lesquels les surfaces de pression de languette et de bande (32, 33) sont inclinées contre un plan horizontal (HP) selon un angle (A1) d’environ 25 à 75 degrés. 8. Panneaux de construction selon l’une quelconque des revendications précédentes, dans lesquels la cannelure de déplacement (40) est inclinée et comprend une partie interne qui s’étend vers le bas. 9. Panneaux de construction selon l’une quelconque des revendications précédentes, dans lesquels le premier et le second panneau de construction (1,1 ’) sont verrouillés verticalement par une première et une seconde paires de surfaces de coopération, la première paire comprend la surface de verrouillage de languette (31) et la surface de verrouillage de cannelure (21), la seconde paire comprend une partie supérieure de la bande (6’) et une partie inférieure du bord (37) du second panneau (1’). 10. Panneaux de construction selon l’une quelconque des revendications précédentes, dans lesquels les-dites surface de verrouillage de cannelure (21) et surface de verrouillage de languette (31) sont inclinées contre un plan horizontal. 11. Panneaux de construction selon la revendication 10, dans lesquels la surface de verrouillage de cannelure (21) et la surface de verrouillage de languette sont inclinées selon un angle (A2) d’environ 10 à environ 60 degrés relativement à un plan horizontal (HP) du panneau. 12. Panneaux de construction selon l’une quelconque des revendications précédentes, dans lesquels la languette déplaçable (30) comprend un élément de frottement flexible (38). 13. Panneaux de construction selon l’une quelconque des revendications précédentes, dans lesquels la languette déplaçable (30) comprend au moins deux saillies (34) s’étendantdepuis le corps principal (36), dans lesquels chaque saillie comprend ladite surface de pression de languette (32) sur une partie extérieure de la saillie, dans lesquels chaque surface de pression de languette est configurée pour être en contact pendant le verrouillage avec un élément de verrouillage ménagé sur la bande. 14. Panneaux de construction selon l’une quelconque des revendications précédentes, dans lesquels la partie interne de la languette déplaçable (30) est située sous la partie externe de la languette déplaçable. 15. Panneaux de construction selon l’une quelconque des revendications précédentes, dans lesquels la surface de pression de languette (32) est située verticalement sous la surface de verrouillage de languette (31).

Claims (8)

ilÄIADÄlM PÍWFC5NT1K 1st contractor ^ msk,% m MSc> # (i) 4a méso $ k ppPdiem (1: 1 ia ^ teif.s. ^ splitting # mnmmmmmmm rm mmm i% t) teywWfc »vtezepyM * W * e **, where "z elements contain" <2% arpety is the # # building element). the edge of the belt (6) extending below the surface of the web extends outwardly at the top of the periphery of the èp: -: tééj; a movable tongue (p) extending in the recess groove (4e} on the edge of the second building block and 82 movable tongues C 3 3} in the form of a &lt; i &gt; iU). émtiy é along the edge of the second panel h ^ ii ^ W mt dyaivretesz application: (31) :: which is the outer and rfelii slit gene of the tongue eyes of ephoaho's cloak: it is loosened, the monkey is in the horn: the tongue groove ¢ 20) Hojonyziró Foil Line: (21); Aho! ag: the eimozdiibati tongue (3?) contains an inner gap (34) which is inwardly spaced at a distance from the second half of the constructor edge (11). where the ribbon (b) looks like a stapler, which is designed to be the same: blk on the second building block: loudspeaker diffuser openweed Cl!% ^ phiail ^ r <iëttébêO <. ogy imes imes imes imes imes imes imes imes imes;;;;;;;;;; first and second construct (1, i?); that the tongue gap is a tactile surface (32) which is configured to co-operate with a web press (33) which is formed on the tape (6). that the movable tongue (30) is moved to the groove groove: when this cavity pressure surface and the web press fit (32, 33) are dependent on the other, in order to heat the two of them, it 's M = itef8ím # ^ 0itetp | «errs (h I1) reissue in vertical direction, further etaiilaft can be moved $ 3ö | asymmetric, and includes a gourmet cake (34), which is provided with a fixture (33) and a second building element (35) for receiving the drip tray. and the lumbar surface (32) is arranged on the rim (34), and the latch (33) is retinalized: p) and the sliding surface (33) is also directed towards the flange of the latch member (B). and the movable tongue is a molded tongue. % Mn. 1- Ipénypeptuenbfi BuildingsSelves, Aboi à Safeguard Legacy Pl) 3. Point 1; the ribbons are too thin! ' is designed. 4. promise any kind of serine building blocks, where the old (35) extends to the moss: (T4). 5. Building elements according to any one of claims 1 to 4. aho; the displacement groove (4 (5) fes-oh part feggöjegessnm refeszlferohy (14) is located above.) 6 The building element according to binmiyi of claims I s to S, where the upper part (14a) of the cantilever canopy is vertical Iranyte ^ (iÔ} fpKOpte <3Ί 'A As in previous claims: oànrieiyiks assrlnf:? ^ i ^ i ^^,: - # ho ^ iV # * the asalagnyofné fé-10101. :( 3¾¾¾ of vz-nfes $ i'KM: :( h ^ 'korüiboiùi 2Å -: 78 degree angle (AI}: closed, I. As previous points feâiiSïfeiytfcè Ogèriâti .OpÄfewk'yahör' ^ 'ÄöÄi groove (4Ö) far * and contains an inner part arnely downwards §. building blocks according to any one of the preceding claims, wherein the first and second building blocks (1.11 fdggôfôgsson can be made of cooperating combs of a first and second pair where the first pair includes a latch surface (31) and the groove closure (21¾ and the second pair are included) * Sawp) feebeirl's breakdown p anel {f} edge p7) ai | 0: r # wind 10. Aiming for a Carbon: Apifler, wherein said groove-groove edge (21) and a nozzle closure tip (31) are angled * Horizontal groove 11 Take a toothbrush 10 where the snow-capping surface (21) and the amphibious surface are circular. An angle of 60 degrees (A2) is locked in the build-up barnScreen &amp; i | HP) 5 A design element according to any one of the preceding claims, wherein the displaceable tongue (36) comprises an elastic beam (38), Building elements according to any one of the preceding claims, wherein the displaceable tongue (30) comprises at least two grooves (34). which starts at the main paint surface (36), where each of the hub protrusions includes the crimping surface (32) at the outer part of the projection, and each nip press fs ~ lily bed is formed to engage the locking tab of the tape during contact with its latches *, 14. The previous claims of &amp; mrm% îk§: constructional elements, wherein the inner part of this movable tongue (30) is the movable tongue ($) $$ slot ** long tongue. Any of the foregoing claims are building blocks. where the nipple press surface (32) is in the vertical trin under the nipivere surface pl)