EP1490566A1 - Panel and interlocking system for panels - Google Patents

Panel and interlocking system for panels

Info

Publication number
EP1490566A1
EP1490566A1 EP03722237A EP03722237A EP1490566A1 EP 1490566 A1 EP1490566 A1 EP 1490566A1 EP 03722237 A EP03722237 A EP 03722237A EP 03722237 A EP03722237 A EP 03722237A EP 1490566 A1 EP1490566 A1 EP 1490566A1
Authority
EP
European Patent Office
Prior art keywords
locking system
panel
groove wall
panels
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP03722237A
Other languages
German (de)
French (fr)
Other versions
EP1490566B1 (en
Inventor
Ralf Eisermann
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Akzenta Paneele and Profile GmbH
Original Assignee
Akzenta Paneele and Profile GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by Akzenta Paneele and Profile GmbH filed Critical Akzenta Paneele and Profile GmbH
Publication of EP1490566A1 publication Critical patent/EP1490566A1/en
Application granted granted Critical
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Anticipated expiration legal-status Critical
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Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements
    • E04F15/04—Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/01—Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0153—Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/02—Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/023—Non-undercut connections, e.g. tongue and groove connections with a continuous tongue or groove
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00—Joining sheets or plates or panels
    • E04F2201/05—Separate connectors or inserts, e.g. pegs, pins, keys or strips
    • E04F2201/0594—Hinge-like connectors

Definitions

  • the invention relates to a locking system for panels with at least two opposite edges of the panels arranged edge profiles for positive connection of similar panels, comprising an edge profile formed as a groove profile with an upper groove wall and a lower groove wall and an edge profile designed as a tongue profile with a locking projection arranged on the underside of the tongue , which engages behind a snap-in recess in the lower groove wall of a neighboring panel in the joined state, the engaging edge profiles forming a joint which, both in the upward and downward deflected state of the connection, brings about a restoring effect of the panels in their laying plane.
  • the invention also relates to a panel with the locking system according to the invention.
  • Such locking systems are used, for example, for floor panels, such as parquet panels with a real wood surface or laminate panels.
  • the latter are made from a core of MDF, HDF or chipboard and have a reproduced surface from an art decor.
  • a generic locking system is known, the connection of which has an articulated function.
  • Locking systems of this type are used for floor coverings which, for example, lie on uneven surfaces or which are subject to deflection in the connection area because of a soft base, for example impact sound insulation have to.
  • a deflection of the connection causes high stress in the area of the tongue and groove profiles of two locked panels, because the connection warps under load.
  • the material of the panels cannot withstand the high stresses in the area of the edge profiles and fails in the connection area.
  • the known articulated connection can be laid in two ways, the type of laying described as the second having the undesirable side effect that the connection has a particularly low strength against pulling apart.
  • a new panel is preferably placed obliquely with the spring in front of a lying panel and then folded down or turned down until it lies in the common installation plane of the panels and locks automatically.
  • the spring of the known locking system has a long, pointed shape.
  • An inclined surface is arranged on the top of the tongue, which is intended to facilitate the threading of the spring tip into the groove.
  • the spring With manual handling, the spring proves to be very easily vulnerable due to its pointed shape. This has an adverse effect on ease of installation, the lifespan and usability of the product.
  • the invention has for its object to provide a locking system for an articulated panel connection, which is easier to handle, has better strength against pulling apart and is more durable than the known locking system.
  • the object is achieved in that the upper groove wall has a free surface on the inside that opens to the free end of the groove wall
  • a leveling surface running towards the base of the groove is connected to the free surface, by means of which an exact height alignment is achieved without a height offset between locked panels.
  • the part of the inside of the upper groove wall that runs from the free surface to the groove base forms the leveling surface, the distance between it and the surface of the panel exactly matching the distance between the top of the tongue and the surface of the panel, so that there is no height offset between locked panels.
  • the free surface can have a curved or a flat course, a straight course being favorable in terms of production technology and a curved course being somewhat gentler for the joining process of the panels.
  • a leveling surface is also provided on the top of the tongue, which in the assembled state of the panels interacts with the leveling surface of the upper groove wall. Since the upper groove wall has a free surface at the front free end, the leveling surface of the tongue is only partially in contact with the leveling surface of the upper groove wall, namely in the region of the free end of the tongue. If the leveling surface of the tongue were in contact with the upper groove wall along the entire length of the tongue surface, this would result in a rigid connection. The free area gives the connection a resilience which favors the joint function of the connection and reduces the stresses in the material of the edge profiles.
  • connection created in this way enables the joint to move without causing a break in the tongue or damaging the groove walls due to excessive tension.
  • the handling and the durability of the locking system is improved if the spring dimension, so that the tongue protrudes over the upper edge of the panel, is less than or equal to the thickness of the upper groove wall of the groove profile.
  • a spring with these dimensions is a spring that is short compared to the prior art.
  • the short feather has the advantage that a relatively short threading path of the tongue must be covered when inserting it obliquely into a groove profile.
  • the proposed locking system is therefore particularly easy to handle and can be installed much faster than the known locking system.
  • the spring has a blunt surface at its free end, which is more robust and durable than the pointed shape of the spring of the known locking system.
  • the groove depth of the groove profile by which the groove protrudes behind the upper edge of the panel, is expediently approximately half that of the spring dimension described above.
  • the tongue protrudes by a tongue dimension of 2/3 into the groove when two panels are assembled, so that it extends between the free end of the tongue and the groove base
  • Such a large groove depth would not be necessary to merely accommodate the tongue in the groove.
  • the large groove depth influences the resilient length of the lower groove wall protruding freely from the edge of the one panel. This makes the connection resiliently reduces the stresses in the material and therefore increases the durability of the connection.
  • the resilient length of the lower groove wall preferably corresponds almost to the thickness of the panel. This is because the spring travel required at the free end of the lower groove wall is only relatively small in relation to the length of the tongue and the elastic expansion when joining the panels causes only slight stresses in the material which can be borne without problems.
  • the depth of the latching recess in the lower groove wall is advantageously approximately one third of the thickness of the tongue. A degree of undercut in the assembled state is thus achieved, which prevents the panels from being pulled apart when installed. prevented under normal operating conditions.
  • the amount of undercut of the locking system according to the invention has been approximately doubled, and the associated strength against pulling apart of panels located in the laying plane has been drastically increased.
  • the cutting dimensions at the edges of the panels are relatively small. They are preferably different on the groove profile side and on the tongue profile side.
  • a panel in particular a floor panel, is advantageously equipped with a locking system according to the invention.
  • the locking profile is preferably used for laminate flooring panels that consist of a core material made of HDF, MDF or chipboard, with the edge profiles of the locking system being milled on the edges of the panels.
  • Fig. 1 A locking system based on a tongue profile and a groove profile of two assembled Panee- le,
  • FIG. 4 is an illustration of the locking system according to FIG. 1 in a connection which is deflected downwards towards the laying substrate.
  • the locking system 1 consists of two form-fitting interlocking edge profiles, which are arranged on the edges of a panel 2 or 3.
  • the edge profiles are largely complementary to one another as groove profile 4 and tongue profile 5.
  • the groove profile 4 on one edge of a panel 2 or 3 is always opposed by a spring profile 5 on the opposite edge of the same panel 2 or 3. In this way, panels 2 and 3 with the same profile can be connected to one another.
  • the locking system 1 is advantageously provided on all opposite sides of a panel 2 or 3.
  • the described embodiment relates to floor panels which are provided with the locking system according to the invention.
  • the locking system can of course also be used, for example, for wall and ceiling cladding panels or for panels for the fence or house building where the problem of deflection arises to a lesser extent.
  • the locking system according to the invention is a modified tongue and groove profile.
  • the groove walls 6 and 7 of the groove profile 4 protrude differently from the edge of the panel 3.
  • Areas 8 and 9 next to the spring 10 of the spring profile 5 apply that they protrude differently from the edge of the panel 2.
  • Spring profile 5 and groove profile 4 are adapted to one another with their aforementioned projecting groove walls 6 and 7 or the recessed areas 8 and 9 in such a way that they can be joined together.
  • a concave locking recess 11 is incorporated in the inside of the lower groove wall 7, which is engaged behind by a convex locking projection 12 in the assembled state according to FIG.
  • the convex locking projection 12 is arranged on the underside of the spring 10 facing the laying base U.
  • an edge strip 13 forms a resistance against the flat pulling out of the tongue 10 of the panel 2 from the groove profile 4 of the neighboring panel 3.
  • edges of the edge profiles are in contact with one another only in three regions.
  • the first to be mentioned is the upper edge of the two panels 2 and 3 facing away from the laying substrate U, on which there is a closed gap-free joint.
  • abutting surfaces 14 and 15 come into contact.
  • the second point of contact is the point of contact between the upper side of the tongue and the inside of the upper groove wall.
  • leveling surfaces 16 and 17 of the two edge profiles are in contact with one another, both the leveling surface 16 of the tongue 10 and the leveling surface 17 of the upper groove wall 6 having exactly the same distance dimension from the top of the respective panel 2 or 3. In this way, a height offset between the joined panels 2 and 3 is avoided.
  • the third point of contact is the contact between the concave latching recess 11 of the lower groove wall 7 and the convex latching projection 12 of the tongue 10. This point of contact is located on the part of the latching recess 11 facing the free end of the lower groove wall 7. There are generous free spaces between these points of contact 18, 19 and 20 are provided so that a contact actually only ever occurs at the desired contact points and a gap-free, closed joint is ensured on the top of a floor covering and there is no height offset.
  • a flat free surface 21 is provided on the inside of the upper groove wall 6, so that the upper side of the tongue only serves as a leveling surface 16 in the region of its free end, which is in contact with the leveling surface 17 of the upper groove wall 6.
  • a spring dimension f is shown, by which the spring 10 protrudes over the upper edge of the panel 2.
  • This spring dimension f is less than or equal to the thickness n of the upper groove wall 6. It is a relatively small projecting spring 10.
  • the oblique free surface 21 on the upper groove wall 6 forms a wide mouth-like opening 22 into which the short Spring 10 can be inserted very easily.
  • the groove depth t by which the groove protrudes behind the upper edge of the panel 3, is approximately half deeper than the spring dimension f. Such a groove depth t would not be required to accommodate the spring 10. However, it favors the resilience of the groove walls 6 and 7, in particular the lower groove wall 7, which has to be widened by a slight amount in a spring-elastic manner in order to join the panels 2 and 3. The resilience of the material results in a restoring effect.
  • the panels 2 and 3 spring back to the zero position shown in FIG. 1, in which both panels are in a common plane.
  • the resulting free space 19 also serves to hold dirt particles that can get into the connection during the laying of the panels 2 and 3.
  • Au- the connection can be improved by adding adhesive in the free space 19, but depending on the choice of adhesive, a change in the joint properties of the connection occurs.
  • FIG. 2 shows the attachment of a panel 2 with the tongue profile 5 to the groove profile 4 of a panel 3 that is already on the laying substrate U.
  • the blunt free end 23 of the tongue 10 can be inserted diagonally very easily over a short threading path.
  • a first edge contact 24 results at the upper edge of the panels 2 and 3.
  • a second edge contact 25 results at the tongue upper side with the upper groove wall 6 and a third contact 26 at the convex locking projection 12 of the tongue 10 and the concave locking recess 11 of the lower one Groove wall 7. From the position shown in FIG. 2, a minimal widening is brought about by continuing the joining process, essentially by springing the lower groove wall 7 away from the laying substrate U.
  • the convex locking projection 12 of the spring 10 is moved into the locking recess 11 of the lower groove wall 7 and the final position of the panels 2 and 3 is reached, as shown in FIG. 1.
  • the locking projection 12 of the spring 10 engages behind the edge strip of the lower groove wall 7 and ensures a firm hold against planar pulling apart.
  • the locking system 1 is used for floor coverings that lie, for example, on uneven laying grounds U.
  • connection In order to withstand such loads, constructive measures are provided that give the connection the necessary articulated flexibility.
  • the flexibility prevents a deflection of the connection from causing such high stresses in the area of the groove profile 4 and the tongue profile 5 that the material of the panels 2 and 3 fails under the high stresses.
  • the positions shown in FIGS. 3 and 4 are arbitrary positions for the movement. They are not end positions for the joint movement.
  • Figure 3 shows the connection, in an upwards, i.e. Deflection state moved away from the installation base U. In this position there is again a slight resilient deflection essentially on the lower groove wall 7. Due to its resilience, the lower groove wall 7 exerts a restoring effect on the panels 2 and 3 as soon as the load is removed. As a result of the articulation, the free space 20 between the root of the spring 10 and the edge strip 13 of the lower groove wall 7 has been reduced. The available free space 20 allows the articulated flexibility of the connection. The free space 18, however, increases.
  • FIG. 4 shows a deflection of the locking system in the opposite direction, towards the laying base U.
  • a resilient widening essentially of the lower groove wall 7 is to be noted, which likewise has a restoring effect on the panels 2 and 3 when the load is withdrawn exercises. Due to the articulated movement, the free space 18 between the spring 10 and the free surface 21 of the upper groove wall 6 has now been reduced. In this case, the free space 18 allows the joint to be flexible. The free space 20, however, increases.

Abstract

A groove profile (4) and a tongue profile (5) comprise edge profiles which are respectively formed on two opposite edges of panels (2,3). The engaged groove and tongue profiles form an articulated joint (G) that restores the panels to their installation plane when deflected either up or down. The groove profile has an upper groove wall (6) and a lower groove wall (7). The tongue profile has a notch projection (12) on the underside of the tongue that engages a notch recess (11) in the lower groove wall of an adjacent panel in the assembled state. The inside of upper groove wall has a flank (21) that opens towards the free end of the upper groove wall.

Description

Paneel sowie VerriegelungsSystem für Paneele Panel and locking system for panels
Die Erfindung betrifft ein Verriegelungssystem für Paneele mit wenigstens an zwei sich gegenüberliegenden Rändern der Paneele angeordneten Kantenprofilen zur formschlüssigen Verbindung gleichartiger Paneele, umfassend ein als Nutprofil ausgebildetes Kantenprofil mit einer oberen Nutwand und einer unteren Nutwand sowie einem als Federprofil ausgebildeten Kantenprofil mit an der Federunterseite angeordnetem Rastvorsprung, der im gefügten Zustand eine Rastausnehmung in der unteren Nutwand eines Nachbarpaneels hintergreift, wobei die sich hintergreifenden Kantenprofile ein Gelenk bilden, welches sowohl im nach o- ben als auch im nach unten ausgelenkten Zustand der Verbindung eine Rückstellwirkung der Paneele in deren Verlegeebene bewirkt. Die Erfindung betrifft außerdem ein Paneel mit dem erfindungsgemäßen VerriegelungsSystem.The invention relates to a locking system for panels with at least two opposite edges of the panels arranged edge profiles for positive connection of similar panels, comprising an edge profile formed as a groove profile with an upper groove wall and a lower groove wall and an edge profile designed as a tongue profile with a locking projection arranged on the underside of the tongue , which engages behind a snap-in recess in the lower groove wall of a neighboring panel in the joined state, the engaging edge profiles forming a joint which, both in the upward and downward deflected state of the connection, brings about a restoring effect of the panels in their laying plane. The invention also relates to a panel with the locking system according to the invention.
Derartige Verriegelungssysteme werden beispielsweise angewendet für Fussbodenpaneele, wie Parkettepaneele mit Echtholzoberfläche oder Laminatpaneele. Letztere sind aus einem Kern aus MDF, HDF oder Spanplatte gefertigt und mit einer reproduzierten 0- berfläche aus einem Kunstdekor versehen.Such locking systems are used, for example, for floor panels, such as parquet panels with a real wood surface or laminate panels. The latter are made from a core of MDF, HDF or chipboard and have a reproduced surface from an art decor.
Aus der 299 11 462 UI ist ein gattungsgemäßes Verriegelungssystem bekannt, dessen Verbindung eine Gelenkfunktion aufweist. Solche Verriegelungssysteme werden für Fußbodenbeläge verwendet werden, die beispielsweise auf unebenen Untergründen liegen o- der wegen einer weichen Unterlage, beispielsweise einer Tritt- Schalldämmung, im Verbindungsbereich eine Auslenkung ertragen müssen. Eine Auslenkung der Verbindung verursacht eine hohe Beanspruchungen im Bereich der Nut- und Federprofile zweier verriegelter Paneele, weil sich die Verbindung unter Last verkrümmt. Das Material der Paneele erträgt die hohen Spannungen im Bereich der Kantenprofile nicht und versagt im Verbindungsbereich.From 299 11 462 UI a generic locking system is known, the connection of which has an articulated function. Locking systems of this type are used for floor coverings which, for example, lie on uneven surfaces or which are subject to deflection in the connection area because of a soft base, for example impact sound insulation have to. A deflection of the connection causes high stress in the area of the tongue and groove profiles of two locked panels, because the connection warps under load. The material of the panels cannot withstand the high stresses in the area of the edge profiles and fails in the connection area.
Die Verlegefreundlichkeit des bekannten gelenkigen Verriegelungsystems lässt zu wünschen übrig. Dessen Festigkeit gegen Ausei- nanderziehen in der Verlegeebene genügt künftig erwarteten Qualitätsstandards für Fussböden mit mechnischem Verriegelungssystem nicht. Ferner lässt sich die bekannte Gelenkverbindung auf zweierlei Arten verlegen, wobei die als zweite beschriebene Verlegeart den unerwünschten Nebeneffekt mit sich bringt, dass die Verbindung eine besonders geringe Festigkeit gegen Auseinanderziehen aufweist.The ease of installation of the known articulated locking system leaves something to be desired. Its resistance to pulling apart on the installation level will not meet the quality standards expected in the future for floors with a mechanical locking system. Furthermore, the known articulated connection can be laid in two ways, the type of laying described as the second having the undesirable side effect that the connection has a particularly low strength against pulling apart.
Nach der ersten Verlegeart wird ein neues Paneel vorzugsweise mit der Feder voran schräg an ein liegendes Paneel angesetzt und anschließend heruntergeklappt beziehungsweise heruntergedreht bis es in der gemeinsamen Verlegeebene der Paneele liegt und selbsttätig verriegelt.After the first type of installation, a new panel is preferably placed obliquely with the spring in front of a lying panel and then folded down or turned down until it lies in the common installation plane of the panels and locks automatically.
Bei der zweiten Verlegeart erfolgt die Verriegelung während beide Paneele in der Verlegeebene liegen, nämlich durch seitliche Verschiebung der Paneele aufeinander zu. Die Paneele lassen sich nur deshalb auf diese Weise verrasten, weil das Maß an Hinterschneidung zwischen dem Rastvorsprung der Feder und der Rastausnehmung der unteren Nutwand entsprechend gering ausge- bildet ist. Die auf diese Weise herstellbare Verrastung weist eine Festigkeit auf, die so gering ist, dass sich durch übliche Längenänderung des Fußbodens Spalte an den Stoßflächen benachbarter Paneele bilden können. Dies ist beispielsweise bei Temperaturschwankungen im Fußboden der Fall. Darüber hinaus tritt bei dieser Fügeart eine Vorschädigung der Kantenprofile auf, weil diese einer starken Verformung ausgesetzt werden müssen, um ein Hintergreifen der Hinterschneidung von Feder und unterer Nutwand herbei zu führen.With the second type of installation, locking takes place while both panels are in the installation plane, namely by moving the panels towards one another. The panels can only be locked in this way because the amount of undercut between the locking projection of the tongue and the locking recess of the lower groove wall is designed to be correspondingly low. The latching which can be produced in this way has a strength which is so low that gaps can form on the abutting surfaces of adjacent panels due to the usual change in length of the floor. This is the case, for example, with temperature fluctuations in the floor. In addition, this type of joining results in pre-damage to the edge profiles because they have to be subjected to severe deformation, to engage the undercut of the tongue and the lower groove wall.
Ferner weist die Feder des bekannten Verriegelungssystems eine lange spitze Form auf. An der Federoberseite ist eine Schrägfläche angeordnet, die das Einfädeln der Federspitze in die Nut erleichtern soll. Bei handwerklicher Handhabe erweist sich die Feder wegen ihrer spitzen Form als sehr leicht verletzbar. Dies wirkt sich nachteilig auf Verlegefreundlichkeit, die Lebensdau- er und Gebrauchstauglichkeit des Produkts aus.Furthermore, the spring of the known locking system has a long, pointed shape. An inclined surface is arranged on the top of the tongue, which is intended to facilitate the threading of the spring tip into the groove. With manual handling, the spring proves to be very easily vulnerable due to its pointed shape. This has an adverse effect on ease of installation, the lifespan and usability of the product.
Der Erfindung liegt die Aufgabe zugrunde, ein Verriegelungssystem für eine gelenkige Paneelverbindung zu schaffen, das einfacher handzuhaben ist, eine bessere Festigkeit gegen Auseinander ziehen aufweist und haltbarer ist als das bekannte Verriegelungssystem.The invention has for its object to provide a locking system for an articulated panel connection, which is easier to handle, has better strength against pulling apart and is more durable than the known locking system.
Erfindungsgemäß wird die Aufgabe dadurch gelöst, dass die obere Nutwand innenseitig eine Freifläche aufweist, die sich zum frei- en Ende der Nutwand öffnetAccording to the invention, the object is achieved in that the upper groove wall has a free surface on the inside that opens to the free end of the groove wall
Durch das Vorsehen einer Freifläche an der oberen Nutwand entsteht auf der Nutprofilseite eines Paneels eine weite Nutöffnung, in der sich das Federprofil eines Nachbarpaneels besser einfügen lässt, als das bekannte spitze Federprofil in die engere Nutöffnung des bekannten Verriegelungssystems.The provision of a free area on the upper groove wall creates a wide groove opening on the groove profile side of a panel, in which the tongue profile of a neighboring panel can be inserted better than the known pointed tongue profile into the narrower groove opening of the known locking system.
Vorzugsweise ist an der Freifläche eine zum Nutgrund hin verlaufende Nivellierfläche angeschlossen, über die eine exakte Höhen- ausrichtung ohne Höhenversatz zwischen verriegelten Paneelen herbeigeführt wird. Mit anderen Worten bildet das von der Freifläche zum Nutgrund verlaufende Stück der Innenseite der oberen Nutwand die Nivellierfläche, deren Abstandsmaß zur Oberfläche des Paneels mit dem Abstandsmaß der Federoberseite zur Oberflä- ehe des Paneels exakt übereinstimmt, damit zwischen verriegelten Paneelen kein Höhenversatz auftritt. Die Freifläche kann einen gebogenen oder einen ebenen Verlaufaufweisen, wobei ein gerader Verlauf fertigungstechnisch günstig ist und ein gebogener Verlauf noch etwas schonender für den Fügevorgang der Paneele ist. Beim in Kontakt kommen des Federprofils mit der gebogenen Freifläche des Nutprofils ist die Flächenpressung etwas geringer, als bei einem Kontakt des Federprofils mit der Kante am Ende der ebenen Freifläche.Preferably, a leveling surface running towards the base of the groove is connected to the free surface, by means of which an exact height alignment is achieved without a height offset between locked panels. In other words, the part of the inside of the upper groove wall that runs from the free surface to the groove base forms the leveling surface, the distance between it and the surface of the panel exactly matching the distance between the top of the tongue and the surface of the panel, so that there is no height offset between locked panels. The free surface can have a curved or a flat course, a straight course being favorable in terms of production technology and a curved course being somewhat gentler for the joining process of the panels. When the tongue profile comes into contact with the curved free surface of the groove profile, the surface pressure is somewhat less than when the tongue profile contacts the edge at the end of the flat free surface.
Auch auf der Federoberseite ist eine Nivellierfläche vorgesehen, die im gefügten Zustand der Paneele mit der Nivellierfläche der oberen Nutwand zusammenwirkt. Da die obere Nutwand am vorderen freien Ende eine Freifläche aufweist, steht die Nivellierfläche der Feder nur teilweise mit der Nivellierfläche der oberen Nutwand in Kontakt, nämlich im Bereich des freien Endes der Feder. Würde die Nivellierfläche der Feder auf der ganzen Länge der Federoberfläche mit der oberen Nutwand in Kontakt stehen, ergäbe sich eine steife Verbindung. Durch die Freifläche erhält die Verbindung eine Nachgiebigkeit, welche die Ge- lenkfunktion der Verbindung begünstigt und die Spannungen im Material der Kantenprofile reduziert.A leveling surface is also provided on the top of the tongue, which in the assembled state of the panels interacts with the leveling surface of the upper groove wall. Since the upper groove wall has a free surface at the front free end, the leveling surface of the tongue is only partially in contact with the leveling surface of the upper groove wall, namely in the region of the free end of the tongue. If the leveling surface of the tongue were in contact with the upper groove wall along the entire length of the tongue surface, this would result in a rigid connection. The free area gives the connection a resilience which favors the joint function of the connection and reduces the stresses in the material of the edge profiles.
Insbesondere für eine Auslenkung der Verbindung zum Verlegeuntergrund hin wird durch die Freifläche ein Bewegungsfreiraum geschaffen, so dass die Federoberseite zur Freifläche hin bewegt werden kann ohne frühzeitig an dieser anzustoßen. Die so geschaffene Nachgiebigkeit der Verbindung ermöglicht die Gelenkbewegung ohne einen Bruch in der Feder zu verursachen oder die Nutwände wegen zu hoher Spannungen zu beschädigen.In particular for a deflection of the connection to the laying surface, a free space is created by the free area, so that the upper side of the spring can be moved towards the free area without hitting it early. The flexibility of the connection created in this way enables the joint to move without causing a break in the tongue or damaging the groove walls due to excessive tension.
Die Handhabung sowie die Haltbarkeit des Verriegelungssystems wird verbessert, wenn das Federmaß, um dass die Feder über den oberen Rand des Paneels hervorsteht kleiner oder gleich der Dicke der oberen Nutwand des Nutprofils ausgebildet ist. Bei ei- ner Feder mit diesen Abmessungen handelt es sich um eine im Vergleich zum Stand der Technik kurze Feder. Die kurze Feder hat den Vorteil, dass beim schrägen Einsetzen in ein Nutprofil ein relativ kurzer Einfädelweg der Feder zurückgelegt werden muss. Das vorgeschlagene Verriegelungssytem ist deshalb besonders verlegefreundlich handhabbar und lässt sich erheblich schneller verlegen als das bekannte Verriegelungssystem.The handling and the durability of the locking system is improved if the spring dimension, so that the tongue protrudes over the upper edge of the panel, is less than or equal to the thickness of the upper groove wall of the groove profile. A spring with these dimensions is a spring that is short compared to the prior art. The short feather has the advantage that a relatively short threading path of the tongue must be covered when inserting it obliquely into a groove profile. The proposed locking system is therefore particularly easy to handle and can be installed much faster than the known locking system.
Die Feder weist an ihrem freien Ende eine stumpfe Fläche auf, die gegenüber der spitzen Form der Feder des bekannten Verriegelungssystems robuster und haltbarer ausgebildet ist.The spring has a blunt surface at its free end, which is more robust and durable than the pointed shape of the spring of the known locking system.
Günstigerweise ist die Nuttiefe des Nutprofils, um welche die Nut hinter den oberen Rand des Paneels zurücksteht etwa um die Hälfte tiefer ausgebildet als das oben beschriebene Federmaß. Mit anderen Worten: Wenn ausgehend vom oberen Rand des Paneels die Nuttiefe 3/3 beträgt, ragt die Feder im zusammengefügten Zustand zweier Paneele um ein Federmaß von 2/3 in die Nut hinein, so dass zwischen dem freien Ende der Feder und dem Nutgrund ein Freiraum besteht, der etwa eine Resttiefe von 1/3 der Nuttiefe aufweist. Zur bloßen Aufnahme der Feder in der Nut wä- re eine derart große Nuttiefe nicht erforderlich. Die große Nuttiefe beeinflusst jedoch die federnde Länge der frei vom Rand des einen Paneels hervorstehenden unteren Nutwand. Dies macht die Verbindung nachgiebig reduziert die Spannungen im Material und steigert deswegen die Haltbarkeit der Verbindung.The groove depth of the groove profile, by which the groove protrudes behind the upper edge of the panel, is expediently approximately half that of the spring dimension described above. In other words: if the groove depth is 3/3 starting from the upper edge of the panel, the tongue protrudes by a tongue dimension of 2/3 into the groove when two panels are assembled, so that it extends between the free end of the tongue and the groove base There is free space that has a residual depth of about 1/3 of the groove depth. Such a large groove depth would not be necessary to merely accommodate the tongue in the groove. The large groove depth, however, influences the resilient length of the lower groove wall protruding freely from the edge of the one panel. This makes the connection resiliently reduces the stresses in the material and therefore increases the durability of the connection.
Vorzugsweise entspricht die federnde Länge der unteren Nutwand nahezu der Dicke des Paneels. Dies, weil dann der an dem freien Ende der unteren Nutwand erforderliche Federweg bezogen auf die Länge der Feder nur relativ gering ist und die elastische Auf- weitung beim Fügen der Paneele nur geringe Spannungen im Material verursacht, die problemlos ertragen werden.The resilient length of the lower groove wall preferably corresponds almost to the thickness of the panel. This is because the spring travel required at the free end of the lower groove wall is only relatively small in relation to the length of the tongue and the elastic expansion when joining the panels causes only slight stresses in the material which can be borne without problems.
Günstigerweise beträgt die Tiefe der Rastausnehmung in der unteren Nutwand etwa ein Drittel der Dicke der Feder. Damit ist ein Maß an Hinterschneidung im zusammengefügten Zustand erreicht, das ein Auseinanderziehen der Paneele im verlegten Zu- stand unter üblichen Einsatzbedingungen verhindert. Im Vergleich zu herkömmlichen mechanischen Verriegelungssystemen nach dem Stand der Technik, die sich durch planes Verschieben in der Verlegeebene verriegeln lassen, ist das Maß an Hinterschneidung des erfindungsgemäßen Verriegelungssystems etwa verdoppelt worden und damit einhergehend die Festigkeit gegen Auseinanderziehen in der Verlegeebene befindlicher Paneele drastisch erhöht.The depth of the latching recess in the lower groove wall is advantageously approximately one third of the thickness of the tongue. A degree of undercut in the assembled state is thus achieved, which prevents the panels from being pulled apart when installed. prevented under normal operating conditions. Compared to conventional mechanical locking systems according to the prior art, which can be locked by moving them flat in the laying plane, the amount of undercut of the locking system according to the invention has been approximately doubled, and the associated strength against pulling apart of panels located in the laying plane has been drastically increased.
Zwecks materialsparender Herstellung sind die Verschnittmaße an den Rändern der Paneele relativ gering. Sie sind vorzugsweise auf der Nutprofilseite und auf der Federprofilseite unterschiedlich.In order to save material, the cutting dimensions at the edges of the panels are relatively small. They are preferably different on the groove profile side and on the tongue profile side.
Auf der Nutprofilseite eines Paneels ergibt sich günstigerweise für die dekorierte Oberseite ein Verschnittmaß, das kleiner ist als die halbe Paneeldicke.On the groove profile side of a panel, there is advantageously a cut-off dimension for the decorated upper side that is smaller than half the panel thickness.
Auf der Federprofilseite eines Paneels ergibt sich für die dekorierte Oberseite ein bevorzugtes Verschnittmaß, das etwa zwi- sehen 1/3 und 1/4 der Dicke des Paneels liegt. Es entspricht im wesentlichen dem Maß, um das die Feder von dem oberen Rand des Paneels hervorsteht.On the tongue profile side of a panel, there is a preferred amount of waste for the decorated upper side, which is approximately between 1/3 and 1/4 of the thickness of the panel. It corresponds essentially to the extent to which the spring protrudes from the upper edge of the panel.
Günstigerweise ist ein Paneel, insbesondere Fußbodenpaneel mit einem erfindugsgemäßen Verriegelungsystem ausgestattet. Das Verriegelungsprofil wird bevorzugt für Laminatfußbodenpaneele verwendet, die aus einem Kernmaterial aus HDF, MDF oder Spanplatte bestehen, wobei die Kantenprofile des Verriegelungssystems an den Rändern der Paneele angefräst sind.A panel, in particular a floor panel, is advantageously equipped with a locking system according to the invention. The locking profile is preferably used for laminate flooring panels that consist of a core material made of HDF, MDF or chipboard, with the edge profiles of the locking system being milled on the edges of the panels.
Nachstehend ist die Erfindung beispielhaft in einer Zeichnung dargestellt und anhand der Figuren detailliert beschrieben. Es zeigen:The invention is shown below by way of example in a drawing and described in detail with reference to the figures. Show it:
Fig. 1: Ein Verriegelungssystem anhand eines Federprofils und eines Nutprofils zweier zusammengefügter Panee- le,Fig. 1: A locking system based on a tongue profile and a groove profile of two assembled Panee- le,
Fig. 2: Das Verriegelungssystem gemäß Figur 1 während des Fügens,2: the locking system according to Figure 1 during joining,
Fig. 3: Das Verriegelungssystem gemäß Figur 1, wobei die Gelenkverbindung vom Untergrund abgehoben und nach o- ben ausgelenkt ist,3: The locking system according to FIG. 1, the articulated connection being lifted off the ground and deflected upwards,
Fig. 4: Ist eine Darstellung des Verriegelungssystems gemäß Figur 1 in einer nach unten zum Verlegeuntergrund hin ausgelenkten Verbindung.4: is an illustration of the locking system according to FIG. 1 in a connection which is deflected downwards towards the laying substrate.
Nach der Zeichnung besteht das Verriegelungssystem 1 aus zwei formschlüssigen ineinandergreifenden Kantenprofilen, die an den Rändern eines Paneels 2 beziehungsweise 3 angeordnet sind. Die Kantenprofile sind weitgehend komplementär zueinander als Nutprofil 4 und Federprofil 5 ausgebildet. Dem Nutprofil 4 an einem Rand eines Paneels 2 beziehungsweise 3 steht immer ein Fe~ derprofil 5 an dem gegenüberliegenden Rand desselben Paneels 2 oder 3 gegenüber. Auf diese Weise lassen sich gleichartig profilierte Paneele 2 beziehungsweise 3 miteinander verbinden. Günstigerweise ist das Verriegelungssystem 1 an allen sich gegenüberliegenden Seiten eines Paneels 2 oder 3 vorgesehen.According to the drawing, the locking system 1 consists of two form-fitting interlocking edge profiles, which are arranged on the edges of a panel 2 or 3. The edge profiles are largely complementary to one another as groove profile 4 and tongue profile 5. The groove profile 4 on one edge of a panel 2 or 3 is always opposed by a spring profile 5 on the opposite edge of the same panel 2 or 3. In this way, panels 2 and 3 with the same profile can be connected to one another. The locking system 1 is advantageously provided on all opposite sides of a panel 2 or 3.
Die beschriebene Ausführungsform betrifft Fußbodenpaneele, die mit dem erfindungsgemäßen Verriegelungssystems versehen sind. Das Verriegelungssystem lässt sich selbstverständlich beispielsweise auch für Wand- und Deckenverkleidungspaneele oder für Paneele für den Zaun oder Hausbau einsetzen, bei denen das Problem der Auslenkung in geringerem Maße auftaucht.The described embodiment relates to floor panels which are provided with the locking system according to the invention. The locking system can of course also be used, for example, for wall and ceiling cladding panels or for panels for the fence or house building where the problem of deflection arises to a lesser extent.
In Figur 1 ist erkennbar, dass es sich bei dem erfindungsgemäßen Verriegelungssystem um ein modifiziertes Nut und Federpro- fil handelt. Die Nutwände 6 und 7 des Nutprofils 4 stehen unterschiedlich weit von dem Rand des Paneels 3 hervor. Für die Bereiche 8 und 9 neben der Feder 10 des Federprofils 5 gilt, dass diese unterschiedlich weit von dem Rand des Paneels 2 zurückstehen. Federprofil 5 und Nutprofil 4 sind mit ihren vorgenannten hervorstehenden Nutwänden 6 und 7 beziehungsweise den zurückstehenden Bereichen 8 und 9 so aneinander angepasst, dass ein Zusammenfügen möglich ist. Um die Verriegelung gegen planes Auseinanderziehen der Paneele 2 und 3 in der Verlegeebene zu sichern, ist in der Innenseite der unteren Nutwand 7 eine konkave Rastausnehmung 11 eingearbeitet, die im zusammengefügten Zustand gemäß Figur 1 von einem konvexen Rastvorsprung 12 hintergriffen wird. Der konvexe Rastvorsprung 12 ist an der dem Verlegeuntergrund U zugewandten Unterseite der Feder 10 angeordnet. An dem frei hervorstehenden Ende der unteren Nutwand 7 bildet eine Randleiste 13 einen Widerstand gegen das plane He- rausziehen der Feder 10 des Paneels 2 aus dem Nutprofil 4 des Nachbarpaneels 3.It can be seen in FIG. 1 that the locking system according to the invention is a modified tongue and groove profile. The groove walls 6 and 7 of the groove profile 4 protrude differently from the edge of the panel 3. For the Areas 8 and 9 next to the spring 10 of the spring profile 5 apply that they protrude differently from the edge of the panel 2. Spring profile 5 and groove profile 4 are adapted to one another with their aforementioned projecting groove walls 6 and 7 or the recessed areas 8 and 9 in such a way that they can be joined together. In order to secure the locking against planar pulling apart of the panels 2 and 3 in the laying plane, a concave locking recess 11 is incorporated in the inside of the lower groove wall 7, which is engaged behind by a convex locking projection 12 in the assembled state according to FIG. The convex locking projection 12 is arranged on the underside of the spring 10 facing the laying base U. At the freely projecting end of the lower groove wall 7, an edge strip 13 forms a resistance against the flat pulling out of the tongue 10 of the panel 2 from the groove profile 4 of the neighboring panel 3.
In Figur 1 ist weiterhin erkennbar, dass die Ränder der Kantenprofile lediglich an drei Bereichen miteinander in Berührung stehen. Als erstes zu nennen ist die dem Verlegeuntergrund U abgewandte Oberkante der beiden Paneele 2 und 3, an der sich eine geschlossene spaltfreie Fuge befindet. Hier stehen Stoßflächen 14 und 15 in Berührung Die zweite Berührungsstelle ist die Berührungsstelle zwischen der Federoberseite und der Innen- seite der oberen Nutwand. Hier stehen Nivellierflächen 16 und 17 der beiden Kantenprofile miteinander in Berührung, wobei sowohl die Nivellierfläche 16 der Feder 10 als auch die Nivellierfläche 17 der oberen Nutwand 6 exakt das gleiche Abstandsmaß zur Oberseite des jeweiligen Paneels 2 beziehungsweise 3 aufweisen. Auf diese Weise wird ein Höhenversatz zwischen den gefügten Paneelen 2 und 3 vermieden. Die dritte Berührungsstelle ist die Berührung zwischen der konkaven Rastausnehmung 11 der unteren Nutwand 7 und dem konvexen Rastvorsprung 12 der Feder 10. Diese Berührungsstelle befindet sich auf der dem freien Ende der unteren Nutwand 7 zugewandten Teil der Rastausnehmung 11. Zwischen diesen Berührungsstellen sind großzügige Freiräume 18, 19 und 20 vorgesehen, so dass ein Kontakt tatsächlich immer nur an den gewünschten Berührungsstellen erfolgt und eine spaltfreie geschlossene Fuge an der Oberseite eines Fußbodenbelags sichergestellt ist und kein Höhenversatz zustande kommt.It can also be seen in FIG. 1 that the edges of the edge profiles are in contact with one another only in three regions. The first to be mentioned is the upper edge of the two panels 2 and 3 facing away from the laying substrate U, on which there is a closed gap-free joint. Here, abutting surfaces 14 and 15 come into contact. The second point of contact is the point of contact between the upper side of the tongue and the inside of the upper groove wall. Here, leveling surfaces 16 and 17 of the two edge profiles are in contact with one another, both the leveling surface 16 of the tongue 10 and the leveling surface 17 of the upper groove wall 6 having exactly the same distance dimension from the top of the respective panel 2 or 3. In this way, a height offset between the joined panels 2 and 3 is avoided. The third point of contact is the contact between the concave latching recess 11 of the lower groove wall 7 and the convex latching projection 12 of the tongue 10. This point of contact is located on the part of the latching recess 11 facing the free end of the lower groove wall 7. There are generous free spaces between these points of contact 18, 19 and 20 are provided so that a contact actually only ever occurs at the desired contact points and a gap-free, closed joint is ensured on the top of a floor covering and there is no height offset.
Im vorliegenden Ausführungsbeispiel ist an der Innenseite der oberen Nutwand 6 eine ebene Freifläche 21 vorgesehen, wodurch die Federoberseite nur im Bereich ihres freien Endes als Nivellierfläche 16 dient, welche mit der Nivellierfläche 17 der obe- ren Nutwand 6 in Berührung steht. Gemäß Figur 1 ist ein Federmaß f eingezeichnet, um das die Feder 10 über den oberen Rand des Paneels 2 hervorsteht. Dieses Federmaß f ist kleiner oder gleich der Dicke n der oberen Nutwand 6. Es handelt sich hierbei um eine relativ gering auskragende Feder 10. Durch die schräge Freifläche 21 an der oberen Nutwand 6 wird eine weite maulartige Öffnung 22 gebildet, in die sich die kurze Feder 10 sehr leicht einfügen lässt. Wegen der kürze der Feder 10 ergibt sich außerdem ein sehr kurzer Einfädelweg bis die Feder 10 vollends in die Nut eingefügt ist. Das Fügen von Paneelen, die mit diesem Verriegelungssystems ausgestattet sind, ist handwerklich sehr einfach und wesentlich schneller durchführbar als mit Paneelen, die das bekannte Verriegelungssystem aufweisen.In the present exemplary embodiment, a flat free surface 21 is provided on the inside of the upper groove wall 6, so that the upper side of the tongue only serves as a leveling surface 16 in the region of its free end, which is in contact with the leveling surface 17 of the upper groove wall 6. According to FIG. 1, a spring dimension f is shown, by which the spring 10 protrudes over the upper edge of the panel 2. This spring dimension f is less than or equal to the thickness n of the upper groove wall 6. It is a relatively small projecting spring 10. The oblique free surface 21 on the upper groove wall 6 forms a wide mouth-like opening 22 into which the short Spring 10 can be inserted very easily. Because of the shortness of the tongue 10, there is also a very short threading path until the tongue 10 is fully inserted into the groove. The joining of panels that are equipped with this locking system is very simple in terms of craftsmanship and can be carried out much more quickly than with panels that have the known locking system.
Die Nuttiefe t, um welche die Nut hinter den oberen Rand des Paneels 3 zurücksteht, ist etwa um die Hälfte tiefer ausgebildet als das Federmaß f. Eine derartige Nuttiefe t wäre für die Aufnahme der Feder 10 nicht erforderlich. Sie begünstigt jedoch die Nachgiebigkeit der Nutwände 6 und 7, insbesondere der unteren Nutwand 7, die zum Fügen der Paneele 2 und 3 um ein gerin- ges Maß federelastisch aufgeweitet werden muss. Durch die Federelastizität des Materials ergibt sich eine Rückstellwirkung. Die Paneele 2 und 3 federn bis in die gemäß Fig. 1 dargestellte Nullstellung zurück, in der sich beide Paneele in einer gemeinsamen Ebene befinden. Der sich ergebende Freiraum 19 dient fer- ner zur Aufnahme von Schmutzpartikeln, die während der Verlegung der Paneele 2 und 3 in die Verbindung geraten können. Au- ßerdem kann die Verbindung durch Zusatz von Kleber in den Freiraum 19 verbessert werden, wobei jedoch je nach Wahl des Klebemittels eine Veränderung der Gelenkeigenschaften der Verbindung eintritt .The groove depth t, by which the groove protrudes behind the upper edge of the panel 3, is approximately half deeper than the spring dimension f. Such a groove depth t would not be required to accommodate the spring 10. However, it favors the resilience of the groove walls 6 and 7, in particular the lower groove wall 7, which has to be widened by a slight amount in a spring-elastic manner in order to join the panels 2 and 3. The resilience of the material results in a restoring effect. The panels 2 and 3 spring back to the zero position shown in FIG. 1, in which both panels are in a common plane. The resulting free space 19 also serves to hold dirt particles that can get into the connection during the laying of the panels 2 and 3. Au- In addition, the connection can be improved by adding adhesive in the free space 19, but depending on the choice of adhesive, a change in the joint properties of the connection occurs.
Figur 2 zeigt das Ansetzen eines Paneels 2 mit dem Federprofil 5 an das Nutprofil 4 eines bereits auf dem Verlegeuntergrund U befindliches Paneels 3.FIG. 2 shows the attachment of a panel 2 with the tongue profile 5 to the groove profile 4 of a panel 3 that is already on the laying substrate U.
In das Nutprofil 4 des liegenden Paneel 3 mit der durch die Freifläche gebildeten weiten maulartigen Öffnung 22, lässt sich das stumpfe freie Ende 23 der Feder 10 sehr leicht auf kurzem Einfädelweg schräg einfügen. In der gemäß Figur 2 dargestellten Position zu Beginn der Fügebewegung ergeben sich drei Berühr- stellen. Eine erste Kantenberührung 24 ergibt sich an dem oberen Rand der Paneele 2 und 3. Eine zweite Kantenberührung 25 ergibt sich an der Federoberseite mit der oberen Nutwand 6 sowie eine dritte Berührung 26 an dem konvexen Rastvosprung 12 der Feder 10 und der konkaven Rastausnehmung 11 der unteren Nutwand 7. Ab der in Fig. 2 dargestellten Position wird durch Fortsetzung des Fügevorgangs eine minimale Aufweitung, im wesentlichen durch Wegfedern der unteren Nutwand 7 zum Verlegeuntergrund U hin bewirkt. Auf diese Weise wird der konvexe Rastvorsprung 12 der Feder 10 in die Rastausnehmung 11 der unteren Nutwand 7 bewegt und die endgültige Position der Paneele 2 und 3 erreicht, wie sie in Fig. 1 dargestellt ist. In dieser Position hintergreift der Rastvorsprung 12 der Feder 10 die Randleiste der unteren Nutwand 7 und gewährleistet einen festen Halt gegen planes Auseinanderziehen.In the groove profile 4 of the lying panel 3 with the wide mouth-like opening 22 formed by the free surface, the blunt free end 23 of the tongue 10 can be inserted diagonally very easily over a short threading path. In the position shown in FIG. 2 at the start of the joining movement, there are three contact points. A first edge contact 24 results at the upper edge of the panels 2 and 3. A second edge contact 25 results at the tongue upper side with the upper groove wall 6 and a third contact 26 at the convex locking projection 12 of the tongue 10 and the concave locking recess 11 of the lower one Groove wall 7. From the position shown in FIG. 2, a minimal widening is brought about by continuing the joining process, essentially by springing the lower groove wall 7 away from the laying substrate U. In this way, the convex locking projection 12 of the spring 10 is moved into the locking recess 11 of the lower groove wall 7 and the final position of the panels 2 and 3 is reached, as shown in FIG. 1. In this position, the locking projection 12 of the spring 10 engages behind the edge strip of the lower groove wall 7 and ensures a firm hold against planar pulling apart.
In den Figuren 3 und 4 ist das Verriegelungssystem 1 so dargestellt, dass die Gelenkfunktion der Verbindung erkennbar wird.In Figures 3 and 4, the locking system 1 is shown so that the joint function of the connection can be seen.
Das Verriegelungssystem 1 wird für Fußbodenbeläge verwendet, die beispielsweise auf unebenen Verlegentergründen U aufliegen.The locking system 1 is used for floor coverings that lie, for example, on uneven laying grounds U.
Bei solch unebenen Verlegeuntergründen U kann es vorkommen das die Paneele 2 und 3 im Bereich einer Verbindungsstelle keine Berührung mit dem Boden haben sondern Luft vorhanden ist. Bei Auflast im Bereich der Verbindung verkrümmt sich diese. Deshalb muss im Verbindungsbereich eine Auslenkung der Kantenprofile ertragen werden können. Eine Verkrümmung der Verbindung kann auch auf ebenem Verlegeuntergrund U auftreten. Dies dann, wenn die Paneele 2 und 3 auf einer weichen Unterlage, beispielsweise einer Trittschalldämmung, verlegt werden.With such uneven laying substrates U it can happen that the panels 2 and 3 in the area of a connection point do not have any contact with the floor but there is air. If there is a load in the area of the connection, it will bend. It must therefore be possible to bear a deflection of the edge profiles in the connection area. A curvature of the connection can also occur on a level installation surface U. This is the case when the panels 2 and 3 are laid on a soft surface, for example impact sound insulation.
Um solchen Belastungen standzuhalten, sind konstruktive Maßnahmen vorgesehen, die der Verbindung die nötige gelenkige Nachgiebigkeit verleihen. Die Nachgiebigkeit verhindert, dass eine Auslenkung der Verbindung derart hohe Beanspruchungen im Bereich des Nutprofils 4 und des Federprofils 5 verursacht, dass das Material der Paneele 2 und 3 unter den hohen Spannungen versagt. Die in den Figuren 3 und 4 gezeichneten Positionen sind beliebige Positionen für die Bewegung. Es handelt sich nicht um Endstellungen für die Gelenkbewegung.In order to withstand such loads, constructive measures are provided that give the connection the necessary articulated flexibility. The flexibility prevents a deflection of the connection from causing such high stresses in the area of the groove profile 4 and the tongue profile 5 that the material of the panels 2 and 3 fails under the high stresses. The positions shown in FIGS. 3 and 4 are arbitrary positions for the movement. They are not end positions for the joint movement.
Figur 3 zeigt die Verbindung, in einem nach oben, d.h. vom Verlegeuntergrund U weg bewegten Auslenkungszustand. In dieser Position ist wiederum eine geringe federelastische Auslenkung im wesentlichen an der unteren Nutwand 7 vorhanden. Durch ihre Federelastizität übt die untere Nutwand 7 eine Rückstellwirkung auf die Paneele 2 und 3 aus, sobald die Auflast zurückgenommen wird. Durch die Gelenkbewegung hat sich der Freiraum 20 zwischen der Wurzel der Feder 10 und der Randleiste 13 der unteren Nutwand 7 verkleinert. Der vorhandene Freiraum 20 gestattet auf diese Weise die gelenkige Nachgiebigkeit der Verbindung. Der Freiraum 18 hingegen vergrößert sich.Figure 3 shows the connection, in an upwards, i.e. Deflection state moved away from the installation base U. In this position there is again a slight resilient deflection essentially on the lower groove wall 7. Due to its resilience, the lower groove wall 7 exerts a restoring effect on the panels 2 and 3 as soon as the load is removed. As a result of the articulation, the free space 20 between the root of the spring 10 and the edge strip 13 of the lower groove wall 7 has been reduced. The available free space 20 allows the articulated flexibility of the connection. The free space 18, however, increases.
Figur 4 zeigt eine Auslenkung des Verriegelungssystems in die entgegengesetzte Richtung, zum Verlegeuntergrund U hin. Auch hierbei ist eine federelastische Aufweitung im wesentlichen der unteren Nutwand 7 zu bemerken, die gleichermaßen bei Zurücknahme der Auflast eine Rückstellwirkung auf die Paneele 2 und 3 ausübt. Durch die Gelenkbewegung hat sich nun der Freiraum 18 zwischen der Feder 10 und der Freifläche 21 der oberen Nutwand 6 verkleinert. In diesem Fall gestattet der Freiraum 18 die gelenkige Nachgiebigkeit der Verbindung. Der Freiraum 20 hingegen vergrößert sich. FIG. 4 shows a deflection of the locking system in the opposite direction, towards the laying base U. Here too, a resilient widening essentially of the lower groove wall 7 is to be noted, which likewise has a restoring effect on the panels 2 and 3 when the load is withdrawn exercises. Due to the articulated movement, the free space 18 between the spring 10 and the free surface 21 of the upper groove wall 6 has now been reduced. In this case, the free space 18 allows the joint to be flexible. The free space 20, however, increases.
Paneel sowie VerriegelungsSystem für PaneelePanel and locking system for panels
BezugszeichenlisteLIST OF REFERENCE NUMBERS
VerriegelungsSystemlocking system
Paneelpaneling
Paneelpaneling
Nutprofilgroove profile
Federprofil obere Nutwand untere NutwandSpring profile upper groove wall lower groove wall
BereichArea
BereichArea
Feder konkave Rastausnehmung konvexer RastvorsprungSpring concave locking recess convex locking projection
Randleistesidebar
Stoßflächeabutting face
Stoßflächeabutting face
Nivellierflächeleveling surface
Nivellierflächeleveling surface
Freiraumfree space
Freiraumfree space
Freiraumfree space
Freiflächeopen space
Maulartige Öffnung stumpfes EndeMouth-like opening butt end
Kantenberührung 25 Kantenberührungedges touch 25 edge contact
26 Berührung f Federmaß n dicke obere Nutwand p Nuttiefe26 Touch f spring dimension n thick upper groove wall p groove depth
U Verlegeuntergrund U subfloor

Claims

Paneel sowie VerriegelungsSystem für PaneelePatentansprüche Panel and locking system for panels
1. Verriegelungssystem (1) für Paneele (2, 3) mit wenigstens an zwei sich gegenüberliegenden Rändern der Paneele (2, 3) angeordneten Kantenprofilen zur formschlüssigen Verbindung gleichartiger Paneele (2, 3), umfassend ein als Nutprofil1. Locking system (1) for panels (2, 3) with at least two opposite edges of the panels (2, 3) arranged edge profiles for positive connection of similar panels (2, 3), comprising a groove profile
(4) ausgebildetes Kantenprofil mit einer oberen Nutwand(4) formed edge profile with an upper groove wall
(6) und einer unteren Nutwand (7) sowie einem als Federprofil (5) ausgebildeten Kantenprofil mit an der Federunterseite angeordnetem Rastvorsprung (12) , der im gefügten Zustand eine Rastausnehmung (11) in der unteren Nutwand(6) and a lower groove wall (7) and an edge profile designed as a tongue profile (5) with a latching projection (12) arranged on the underside of the tongue, which in the joined state has a latching recess (11) in the bottom groove wall
(7) eines Nachbarpaneels hintergreift, wobei die sich hintergreifenden Kantenprofile ein Gelenk (G) bilden, welches sowohl im nach oben als auch im nach unten ausgelenkten Zustand der Verbindung eine Rückstellwirkung der Paneele (2, 3) in deren Verlegeebene bewirkt, d a d u r c h g e k e n n z e i c h n e t , dass die obere Nutwand (6) innenseitig eine Freifläche (21) aufweist, die sich zum freien Ende der Nutwand (6) öffnet.(7) engages behind a neighboring panel, the engaging edge profiles forming a joint (G) which, both in the upward and downward deflected state of the connection, brings about a restoring effect of the panels (2, 3) in their laying plane, characterized in that the upper groove wall (6) has a free surface (21) on the inside, which opens towards the free end of the groove wall (6).
2. Verriegelungssystem nach Anspruch 1, d a d u r c h g e - k e n n z e i c h n e t , dass die Freifläche (21) einen gebogenen oder einen ebenen Verlauf aufweist.2. Locking system according to claim 1, d a d u r c h g e - k e n n z e i c h n e t that the free surface (21) has a curved or a flat course.
3. Verriegelungssystem nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t , dass an der Freifläche (21) eine zum Nutgrund hin verlaufende Nivellierfläche (17) angeschlossen ist.3. Locking system according to claim 1 or 2, characterized in that on the free surface (21) a leveling surface (17) running towards the bottom of the groove is connected.
4. Verriegelungssystem nach einem der Ansprüche 1 bis 3, d a d u r c h g e k e n n z e i c h n e t , dass auf der Federoberseite eine Nivellierfläche (16) vorgesehen ist, die im gefügten Zustand der Paneele (2, 3) mit der Nivellierfläche (17) der oberen Nutwand (6) zusammenwirkt.4. Locking system according to one of claims 1 to 3, so that a leveling surface (16) is provided on the top of the tongue, which cooperates with the leveling surface (17) of the upper groove wall (6) in the joined state of the panels (2, 3).
5. Verriegelungssystem nach Anspruch 4, d a d u r c h g e k e n n z e i c h n e t , dass die Nivellierfläche (16) der Feder (10) nur teilweise, nämlich im Bereich des freien Endes der Feder (10) mit der Nivellierfläche (17) der oberen Nutwand (6) in Kontakt steht.5. Locking system according to claim 4, so that the leveling surface (16) of the spring (10) is only partially in contact with the leveling surface (17) of the upper groove wall (6), namely in the region of the free end of the spring (10).
6. Verriegelungssystem nach einem der Ansprüche 1 bis 5, d a d u r c h g e k e n n z e i c h n e t , dass das Federmaß (f) , um das die Feder (10) über den oberen Rand des Paneels (2) hervorsteht, kleiner oder gleich der Dicke der oberen Nutwand (n) des Nutprofils (4) ausgebildet ist.6. Locking system according to one of claims 1 to 5, characterized in that the spring dimension (f) by which the spring (10) protrudes over the upper edge of the panel (2) is less than or equal to the thickness of the upper groove wall (s) Groove profile (4) is formed.
7. Verriegelungssystem nach Anspruch 6, d a d u r c h g e k e n n z e i c h n e t , dass die Nuttiefe (t) , um welche der Nutgrund () hinter den oberen Rand des Paneels (3) zu- rücksteht, etwa um die Hälfte tiefer ausgebildet ist als das Federmaß (f) .7. Locking system according to claim 6, so that the groove depth (t), by which the groove base () protrudes behind the upper edge of the panel (3), is approximately half deeper than the spring dimension (f).
8. Verriegelungssystem nach einem der Ansprüche 1 bis 7, d a d u r c h g e k e n n z e i c h n e t , dass die unte- re Nutwand (7) eine federnde Länge aufweist, die nahezu der Dicke des Paneels (3) entspricht.8. Locking system according to one of claims 1 to 7, so that the lower groove wall (7) has a resilient length which almost corresponds to the thickness of the panel (3).
9. Verriegelungssystem nach einem der Ansprüche 1 bis 8, d a d u r c h g e k e n n z e i c h n e t , dass die Tie- fe (r) der Rastausnehmung (11) in der unteren Nutwand (7) etwa 1/3 der Dicke der Feder (10) beträgt. 9. Locking system according to one of claims 1 to 8, characterized in that the depth (r) of the locking recess (11) in the lower groove wall (7) is approximately 1/3 of the thickness of the spring (10).
10. Verriegelungssystem nach einem der Ansprüche 1 bis 9, d a d u r c h g e k e n n z e i c h n e t , dass auf der Nutprofilseite (4) eines Paneels (2, 3) das Verschnittmaß der dekorierten Oberseite kleiner ist als die halbe Paneeldicke.10. Locking system according to one of claims 1 to 9, d a d u r c h g e k e n n z e i c h n e t that on the groove profile side (4) of a panel (2, 3), the amount of cut of the decorated top is smaller than half the panel thickness.
11. Verriegelungssystem nach Anspruch 1 bis 10, d a d u r c h g e k e n n z e i c h n e t , dass auf der Federprofilseite (5) eines Paneels (2, 3) das Verschnittmaß der dekorierten Oberseite etwa zwischen 1/3 und 1/4 der Dicke des Paneels (2, 3) liegt.11. Locking system according to claims 1 to 10, so that the cut profile of the decorated upper side is approximately between 1/3 and 1/4 of the thickness of the panel (2, 3) on the tongue profile side (5) of a panel (2, 3).
12. Paneel mit einem Verriegelungssystem nach einem der Ansprü- ehe 1 bis 11. 12. Panel with a locking system according to one of claims 1 to 11.
EP03722237A 2002-04-04 2003-03-28 Panel and interlocking system for panels Expired - Lifetime EP1490566B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10214972A DE10214972A1 (en) 2002-04-04 2002-04-04 Panel and locking system for panels
DE10214972 2002-04-04
PCT/DE2003/001025 WO2003085222A1 (en) 2002-04-04 2003-03-28 Panel and interlocking system for panels

Publications (2)

Publication Number Publication Date
EP1490566A1 true EP1490566A1 (en) 2004-12-29
EP1490566B1 EP1490566B1 (en) 2006-08-09

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EP03722237A Expired - Lifetime EP1490566B1 (en) 2002-04-04 2003-03-28 Panel and interlocking system for panels

Country Status (11)

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US (2) US7146772B2 (en)
EP (1) EP1490566B1 (en)
CN (1) CN100354491C (en)
AT (1) ATE335893T1 (en)
AU (1) AU2003229498A1 (en)
CA (1) CA2481393C (en)
DE (3) DE10214972A1 (en)
ES (1) ES2270017T3 (en)
PL (1) PL204800B1 (en)
RU (2) RU2004132214A (en)
WO (1) WO2003085222A1 (en)

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US7146772B2 (en) 2006-12-12
CN1643227A (en) 2005-07-20
CA2481393C (en) 2009-06-30
US7454874B2 (en) 2008-11-25
AU2003229498A1 (en) 2003-10-20
CA2481393A1 (en) 2003-10-16
PL204800B1 (en) 2010-02-26
US20030188504A1 (en) 2003-10-09
ATE335893T1 (en) 2006-09-15
RU2451783C2 (en) 2012-05-27
WO2003085222A1 (en) 2003-10-16
RU2007129572A (en) 2009-02-10
US20070245670A1 (en) 2007-10-25
PL374055A1 (en) 2005-09-19
DE20220655U1 (en) 2004-01-08
CN100354491C (en) 2007-12-12
RU2004132214A (en) 2005-05-20
ES2270017T3 (en) 2007-04-01
DE10214972A1 (en) 2003-10-30
DE50304572D1 (en) 2006-09-21
EP1490566B1 (en) 2006-08-09

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