EP1359266A2 - Panels joinable to each other by lowering - Google Patents

Abstract

The panels (1, 2) are provided with coupling elements which enable them to be joined to one another so that they are shape interlocked both in horizontal and vertical directions. Also claimed is a covering, in particular, a floor covering consisting of such panels.

Description

The invention relates to a panel which is provided with a second panel can be positively connected, so that a lock both perpendicular to the common surface as well as perpendicular to common joint and at the same time parallel to the common Surface is present. The use of glue can then be dispensed with be when the panels according to the invention as a covering for a Floor or wall paneling are used. The connecting succeeds by lowering a panel relative to one already laid panel.

A panel of the type mentioned is for example from the US Pat. No. 6,324,803 B1 or EP 0 698 162 B1. The known panel is connected to a second by means of a tongue and groove connection perpendicular to the common surface of the panels positively locked. The groove comprises an upper and a lower Flank. The lower flank is longer than the upper one and has at the end protruding locking element. Locked in the connected state the above locking element in a recess, the is introduced below the adjacent panel. This will be a positive locking achieved, which is parallel to the common Surface of the two panels and at the same time perpendicular to common joint of the two panels acts.

In the locked state of two panels remains between the protruding locking element and the recess a game, including a panel relative to the other along the joint joint can be easily moved. Of the Transition from the projecting flank to the locking element runs vertically. The locking element thus projects vertically into the Height. The recess below the adjacent panel has Walls on, perpendicular to the common surface of the panels run. So it hits a vertical wall or Contact surface of the recess to a vertical wall or contact surface of the protruding locking element in locked state. This ensures that the panels themselves in the installed state with greater force not accidentally can solve each other.

The game is also required in spite of the aforementioned vertical Walls two panels, for example, by a rotational movement around the to be able to connect common joint around. In the The aforementioned document specifies that a clearance of 2/10 mm can be present.

The material from which the panels of the type mentioned can exist, in principle, freely selectable, according to the invention however, in particular, panels affected that are wholly or predominantly made consist of a wood material. In a parquet panel this can be completely made of wood. Alternatively, a parquet panel a Include carrier plate, which consists for example of HDF or MDF. Above the carrier plate are one or more parquet lamellae applied. Below the carrier plate, a layer or a Paper applied to effect a countermove, thereby Deformations are avoided. They are also glutinous with each other Connectable panels are known which are made entirely or predominantly of plastic exist, for example, from the document US 04426820.

The invention further relates in particular to a Laminate flooring. This comprises a carrier plate of a Wood material. HDF and MDF are currently the preferred wood-based materials. Another typical wood material consists of glued chips. Above the support plate, a decorative layer is applied, the one Decorative paper including a protective layer comprises. The protective layer exists in particular of a resin which, inter alia, abrasion resistant Particles such as corundum or silicon carbide (SiC). Below the Carrier plate is applied a Gegenzugpapier to the aforementioned Avoid deformations. Currently there are signs that technical laminates gain importance and increasingly from this Panels are made. These are in particular as Flooring used.

Resin-soaked papers are used in conjunction with the Carrier plate fed to a press. With supply of heat and pressure The papers are glued to the carrier plate. This shows that Decorative paper already on the layer with the abrasion-resistant particles.

Panels of the type according to the invention may contain one or more of the include the aforementioned features.

The above-mentioned game was considered too disadvantageous by experts felt, since in this dust and moisture is able to penetrate. Also visually the game is perceived as negative, because at the Surface a gap may occur.

To avoid such a game is for example from the Publication EP 0 843 763 B1 discloses a panel in which instead of the aforementioned vertical contact surfaces inclined Contact surfaces are provided. The slopes are such that two Panels, for example, by a rotation about a common Connecting joint can be interconnected without that a gap on the surface of the two panels due to a Game remains. From this document is also known, the above to make the lower lip elastic so as to connect through Allow moving in a plane.

Although in the aforementioned prior art that is disadvantageous perceived game at the joint connecting joint avoided. However, then requires moving a panel, which connected to a second, for example, along long sides, along the joint joint a great effort. In the As a rule, the force required is so great that this tool like hammer and impact block must be used. This can damage the panels occur.

Due to the oblique contact surfaces and the elastic lip or Flank of a groove, panels can not only by moving inside connected to one another, but in this way too be solved again. Undesirable are two already laid panels with appropriate force also dissolve again from each other. This problem occurs especially when two lips of the same length are provided and the locking element, which is the Locking parallel to the floor surface and perpendicular to the Connecting joint causes, located within the groove. This is then namely very small, because there is little space, as can be seen from the utility model DE 29823749 U1.

To provide two equal-length lips has over the prior Technique with long protruding lip following advantages.

On the one hand, material is saved in the production and indeed in the Compared to a prior art, in which a flank or lip protrudes from the other a groove. On the other hand, the Spring very reliable into the groove. In addition, the Consumers are very familiar with a tongue and groove system in which the Flanks are the same length.

Alternatively, panels are from documents WO 00/47841 A1, WO 01/51732 A1 and DE 200 08 708 U1 known by lowering can be connected to each other. Lowering is understood to mean that one panel can be held horizontally to the other and is lowered while maintaining the horizontal position. Is this one panel is in the plane of the other panel, so lies at least one locking perpendicular to the common Connecting joint and parallel to the common plane before.

In the prior art, the surface may be disadvantageously lowered of the deeper panel at the edge slightly damaged adjacent to the later joint connecting joint. Furthermore Locking may be problematic, especially if relatively rigid Materials such as MDF or HDF are used.

The object of the invention is to provide a panel of the above mentioned type, which easily and reliably with a second can be connected without glue.

The object of the invention is achieved by a panel with the features of solved first claim, Advantageous embodiments emerge the dependent claims.

According to the invention, there are two adhesively locked together between two Panels a recess in which in the final laid state a cord or rod-like element is located, which in particular a compressible material. As a flexible material can For example, be provided Teflon. However, one is preferable Material which has good elastic properties. The cord or rod-like element therefore consists for example of a Rubber. However, silicone is preferable to rubber because silicone has a suitably higher restoring force compared to rubber. The In comparison to rubber higher restoring force of silicone has turned out to be proved advantageous.

The provision of a gap or recess between the two panels allows easier displacement of a panel along a joint joint even if no game between two panels should be present. The presence of a game is However, to be preferred, to ensure easy displacement. It is sufficient for this purpose a game of a few 1/100 millimeters.

The aforementioned gap or recess occurs in particular at the Surface of two panels on which the visible part of a floor or a wall paneling. From the surface is then the cord or rod-like element visible. In the locked state that is cord or rod-like element in particular so dimensioned that this completely fills the width of the gap. Advantageous is the cord or rod-like element slightly wider. It is then in the compressed state within the gap.

By providing a gap or a recess between the Panels containing a cord or bar-like element the friction is especially compared to such panels reduced, in which the locking elements integral with the Panel are connected and made of a wood material. Thus, according to the invention, for example, in one piece with the panel Connected panels are provided, which are made of a wood material exist and yet relatively easy along a common Joint can be moved even if two Panels are locked together. Is the gap with the cord or rod-like element on the visible surface, so Furthermore, new design possibilities open up as a concomitant. in the Joint area, for example, black rubber or silicone material visible, noticeable. The surface of the panel can otherwise be strong Have contrast to this. This results in new optical effects, the especially with laminate panels are not known. Will one desired discreet appearance, so the cord or rod-like element, As far as this is visible, color to the visible surface customized. Although there are also decors that have a colored border or have colored edges on the surface of each panel. in the In contrast to this, the customer can freely choose the color of the border and also change later. So it is possible the optics of already laid panels with a relatively small effort to vary without to remove the flooring. The on the surface by two adjoining panels provided recess thus offers in addition to the technical advantage of easier displacement the Possibility to modify optical impressions easily.

The cord or rod-like element may be from the surface subsequently pressed into the gap or the recess or be inserted. However, it can already be done with a panel be connected, especially if the cord or rod-like element consists of a compressible material. Subsequent insertion a separate cord or rod-like element in a gap provides however, the advantage is that the panels are moved particularly easily can be, as long as the cord or rod-like element is not yet is inserted.

Is a game between a protruding locking element and a corresponding recess available, so can vertical or undercut contact surfaces are provided. The corduroy rod-like element then becomes something when connecting compressed, if already factory-fitted with a panel connected delivered. Despite vertical contact surfaces succeed such a connection for example by turning around a common Connecting joint around.

It is even possible undercuts in the above Provide locking element and the recess. Become interconnected panels parallel to the floor surface pressed apart, so then hook in accordance with arranged locking element and arranged accordingly Recess the aforementioned contact surfaces into each other. One non-destructive release of the locking or coupling elements Moving in a plane perpendicular to the joint is not possible. The mentioned in the prior art unwanted loosening due to an accidental force is even then avoided if, for example, a protruding edge a groove with a locking element at the end of elastic is designed. Should therefore despite an elastic lip of a groove one particularly reliable locking parallel to the floor surface and created perpendicular to a common joint be so, such contact surfaces are to be preferred, the undercut or at least perpendicular to the surface are arranged.

Run the contact surfaces in the aforementioned type obliquely, such as known from document EP 0 843 763 B1, is a rigid one Design of a projecting lower edge or lip of a groove prefer to have such a reliable locking in parallel as well perpendicular to provide a common joint. Becomes a particularly reliable connection between installed panels desired, the protruding lip is also perpendicular Contact surfaces rigidly configured, so that a release by moving in a plane perpendicular to the joint is not possible. Also the remaining coupling elements are then, if necessary, rigid educated. This affects, for example, a spring that with a Groove a lock perpendicular to the common surface of the Panel causes.

If panels are first locked together, then it is a game exists and is provided, only then the cord or rod-like element from above into an occurring gap or To bring recess, so is a very simple move along a joint with almost no effort possible. The Possibility of moving already interlocked Panels along a common joint is particular then desired if two long sides of two panels already are connected and now Schmalselten are still to be connected. Such a method is for example from the document EP 0855482 B1 known. Especially when connecting regularly requires panels along a common joint despite to be able to move already locked state is the Embodiment advantageous in which a cord or rod-like element From the top last inserted into a gap or pressed into it.

The cord or rod-like element typically has one Diameter or a width of at least 0.5 mm, preferably from at least 1 mm, more preferably at least 2 mm. The Width does not regularly exceed 10 mm, unless a larger one Width is desirable for visual reasons. The width is preferred less than 5 mm, more preferably less than 3mm. in principle However, smaller or larger widths or diameters can Example be provided for optical reasons.

The gap in which the cord or rod-like element is located, regularly has a slightly smaller width than the cord or rod-like element, especially when compensated for a game or Ingress of dust and moisture into a joint should be avoided. The cord or rod-like element is located then pressed lightly in the gap and is kept in the gap. Of the However, gap can also have the same width. Only one greater width of the gap compared to the width of the cord or rod-like element or to the diameter should be avoided otherwise an undesirable gap remains on the surface and the cord or rod-like element lends itself too easily, if this has been inserted from the surface. An interference fit of the cord or rod-like element in the gap is preferable because then the gap-free state is ensured and the cord or rod-like Element is held.

In one embodiment of the invention is the cord or rod-like element in the locked state between two surfaces, the cause a lock. For example, these may be the surfaces which are called here contact surfaces. The string then exists in particular made of an elastic material such as rubber or silicone. Before two panels are locked, that is cord or rod-like Apply element to one of the aforementioned locked surfaces. The cord or rod-like element is then in particular partly in a depression and will continue in this or even completely pressed in when panels are locked together. For example, a panel by a rotary motion or a Lowering movement, for example, from the document DE 20008708 U1 is known, in a second latched. This is the cord or rod-like element pressed into the recess. Due to the The presence of a game can now be the one panel further toward of the other panel. This will make the depression released again. The cord or rod-like element relaxes and thus gets between the two (contact) surfaces, the one Lock effect.

If, for example, a projecting flank is provided, which at the end passes through a right angle in a locking element, so the aforementioned depression is preferably immediately before Transition to the locking element. In this deepening is the cord or rod-like element inserted or is already here factory vulcanized, for example.

In the aforementioned embodiment, it may be appropriate that even in the relaxed state of the cord or rod-like element a gap or a recess remains on the surface. In these Gap then becomes a second cord or rod-like element brought in. Alternatively, already on the surface at one Edge of a panel already a cord or rod-like element be attached compressible material. This can be beneficial to to achieve the aforementioned design effects or tensions compensate, especially with a wooden material practically not to avoid.

Is a first and a second cord or rod-like element at a Connecting joint between two panels provided so opens up Here further the advantage that on the surface of the panels by means of a corresponding tool initially pressed something apart can be. It is created so space to enter here easily cord or rod-like element to insert. Is that corduroy rod-like element largely inserted, then the tool away. The cord or rod-like element which is between two locking contact surfaces, then relaxes in such a way that no gap remains on the surface.

Is a string or rod-like element inside the joint provided between two contact surfaces, which is a lock effect, this allows an embodiment in which two panels be connected by coupling elements of a panel first by a vertical movement relative to the later common Surface of two panels in coupling elements of a second panel to be brought. Here, the cord or rod-like element for Example be pressed into a corresponding depression. Subsequently, the panels are pushed towards each other. At a corresponding embodiment can push in this succession a spring into a groove and thus a lock perpendicular to effect common surface. The aforementioned string or rod-like element eventually relaxes and passes between the both locking contact surfaces.

The cord or rod-like element may be a circular or have triangular diameter. However, it is from the Surface introduced last, so it may be advantageous that the cord or bar-like element on two opposite sides is hook-shaped. Will the cord or rod-like element pressed accordingly in a gap from above, so they act Hook like barbs. Is the cord or rod-like element in the Gap pressed in, so the visible surface of the cord or rod-like element be designed flat, so as a flat To provide completion with the remaining surface of the panels.

Opposite to the surface of the cord or rod-like element, which is visible from the surface can, for example, a curved Be provided recess so that obliquely protruding hook better push into the gap.

In the embodiment with the hook and the arched lower Recess is advantageous to realize a press fit.

The cord or rod-like element advantageously comprises a thread which practically can not be stretched. The thread is then basically enveloped by a compressible material. This will ensure that the cord or rod-like, made of a compressible material existing element by pressing it into a gap or in a Recess is not disadvantageously stretched. Would that be cordial or rod-like element initially stretched, so it will be laid Constrict state again. This would be undesirable areas occur at the recesses or columns that are not with one cord-like or rod-like element are filled.

To be able to lay particularly easy, have at least two themselves opposite sides of a panel such locking elements on which a connection is possible by a panel first is lowered perpendicular to the other. In particular, in In such a case, the narrow sides with such Locking elements fitted when the surface of a Panel is rectangular. The long sides are then preferred designed that a joining usually a rotary motion around requires a connecting joint around. Will be a panel on the long side by a rotational movement with the longitudinal side of a second panel connected, so can a narrow side at the same time in the corresponding Locking or coupling element of a previously installed panel reach. It is also the narrow side of the already laid panels. Subsequently, it may vary depending on the embodiment be required, the panels over the narrow sides with each other still be slightly pushed towards each other. Typically, this last shift can take a few 1/10 millimeter be limited. In this way, moving into the final position compared to the aforementioned state of Technology kept very low. Accordingly, for the laying required time to be reduced. Also, keep in mind that one Method for laying the panels, which is a shifting includes, u. a. then it is especially undesirable when there is a panel initially so close to a wall that a tool barely between the panel and the wall can be brought to Tool to perform the move. Especially undesirable a shifting further then, if a small projection to Example is due to a door frame in a room, to the a panel should be possible to close tightly. Then it is special advantageous to connect panels together by a lowering movement to be able to. The narrow sides can, for example, in the from the Be printed document DE 20008708 U1 known manner, insofar the coupling elements known from this connection to a connection Lowering.

The cord or rod-like element can be a substantially rectangular or square diameter to one to be able to effect surface finish on the surface.

A cord or rod-like element according to the invention has the desired elasticity or flexibility, if the width or the Diameter can be reduced by squeezing. Solid metal or wood is not compressible.

The claimed dimensions of the panels are advantageous because These can be easily handled. In particular, dimensions below 100 cm advantageous, since then the panels easily themselves in the trunk of limousines can be transported.

If two rod or string-like elements are provided, then these are preferably such that the due to the rod or string-like Elements occurring restoring forces are such that no gap at the Surface remains. It is therefore advantageous that a rod or cord-like element attached to the visible surface of the panels bordered, can cause relatively low restoring forces. Panels will be so not undesirably far apart. The restoring forces can by selecting the materials that make up the rod or string-like element, be adjusted appropriately. additional or alternatively, the cross sections can be selected appropriately. The to the surface adjacent rod or cord-like element has therefore preferably a larger area in cross-section than that other rod or string-like element.

In another embodiment, a cord or rod-shaped causes Element is a locking of two panels in one of said Directions, for example, perpendicular to the common surface the panels. In particular, two panels are parallel and at the same time locked together perpendicular to the common joint, if the rod or cord-shaped element in a corresponding Recess is pushed into it.

The embodiment in which the insertion of a rod or cord-shaped element causes a locking of two panels, in turn allows the presence of vertical or undercut contact surfaces in order to reach a connection, which is maintained even when not intended force. Around vertical contact surfaces to obtain a locking to the Example parallel to the surface as well as perpendicular to the to obtain joint fugue from two panels, points the corduroy rod-shaped element in the simplest case a rectangular Cross-section on. The coupling elements of the two panels, the are to be connected, have recesses, which also has a have rectangular cross-section. Be the two panels merged, so for example by moving in a plane, so Finally, there is an end position, where the two aforementioned recesses with the rectangular cross sections border each other. They then form a channel with rectangular Cross-section. In this channel is then the cord or rod-shaped Element pushed into it. Is the cord or rod-shaped element sufficiently wide as and sufficiently high, so are the two panels locked together without a game occurs. The contact surfaces, which cause the positive locking, are perpendicular.

In the cited prior art, in which a compound on the Base of a tongue and groove connection takes place, an elastic lip or Flank together with other locking elements are provided so as to a positive connection by moving in a plane to allow damage to occur especially if the material is relatively rigid. This is especially the case when the Coupling elements made of a wooden material, such as HDF or MDF exist. This easily possible damage to the Coupling elements can be avoided in this embodiment. The compound can be mechanically very stable, because vertical or undercut contact surfaces can be provided. Even at obliquely extending contact surfaces, such as these from the document EP 00843763 B1 are known, a more stable mechanical connection be possible because an elastic edge is not required and the locking element can protrude relatively far.

If a protruding edge in the from EP 00843763 B1 provided known manner, it may be comparatively short, since this is not deflected down when connecting. It will according to material saved, so that there is a cost advantage here gives.

In the prior art, such as this from the document DE 29823749 U1 is known, two equal long flanks are proposed. One of the Locking recess is located inside the groove. A corresponding protruding locking element is located suitable position on the spring of a second panel. For reasons of space as well as production reasons, the locking element is little and has an oblique course. Accordingly, the 35 recess formed and dimensioned inside the groove. The resulting positive connection parallel to the floor surface and at the same time perpendicular to the joint is mechanically relative unstable. The instability is at the present Implementation form, for example, by vertical or comparatively steep contact surfaces avoided when a Embodiment with equal sides of a coupling element acting groove is provided.

To undercut contact surfaces in the embodiment in which the insertion of a rod-shaped or cord-shaped element Locking of two panels causes to arrive, indicates the staboder string-like element in cross-section, for example, a Constriction on. Recesses in coupling elements, in which the rod or cord-like element for the purpose of locking is pushed in, expediently have a this corresponding cross-section on.

To the rod or cord-like element in recesses at To push in coupling elements, so as two panels to lock together, the rod or cord-like element prefers a smooth surface to while pushing occurring sliding friction forces to keep low. The rod or string-like element then consists in particular of little or no compressible material to form a gap on the surface of To be able to avoid panels even if there is no surface additional rod or cord-like element is to be introduced. As a material for the rod or cord-like element or his Surface Teflon may therefore be appropriate. HDF, MDF wise also relatively smooth surfaces and therefore can also preferably used. Also a rod made of metal or with Metallic surface has a smooth surface and therefore can preferably used.

To the rod or cord-like element in recesses bel Thread coupling elements in and then push them in, the rod or cord-like element tapers to advantage at least one end.

Preferred is the embodiment in which the insertion of a staboder cord-shaped element a lock of two panels causes, provided on narrow sides of panels, which is a rectangular Have surface. Panels will then be on the long sides in particular connected by a rotational movement. So far required, narrow sides of already laid panels then pushed towards each other. Last is the rod or string-like element on the corresponding narrow side pushed. Narrow sides between which the rod or cord-shaped element is pushed in for the purpose of locking are to prefer, because here the distance is comparatively short. Corresponding Briefly insert the rod-shaped or cord-shaped element into two To lock panels in accordingly.

The embodiment in which the insertion of a rod or cord-shaped element causes a locking of two panels, may be in a panel with those known from the prior art Coupling elements for providing a glueless connection be combined. Especially to be preferred is a panel with the Example of rectangular surface, which preferably on the longitudinal side is such that this by means of a rotary motion with a second panel can be connected without glue, so no game remains between the panels. Such an embodiment is known from Publication WO 01/48332 known. In particular, this includes Embodiment a rigid, protruding lower lip or flank to to arrive at a mechanically stable connection. At another Side of the panel, so in particular on the narrow side is then the Embodiment provided, in which the insertion of a staboder cord-shaped element a lock of two panels causes. First, a first and a second panel by means of Rotational motion connected with each other. Subsequently, the second Panel along the joint joint on a adjacent, already connected to the first panel panel been postponed. Finally, the second and third panels become final connected by the rod or cord-shaped element in a channel is pushed into it, which through recesses in the corresponding coupling elements has been formed.

In the following the invention with reference to embodiments will be closer explained.

Figure 1 shows two interconnected panels 1 and 2. It acts This particular to panels for a laminate floor. The shown panels are in the example 8 mm thick. The panel 1 has laterally a 2.5 mm deep groove, which is 1.9 mm wide. This groove 3 includes an upper flank 4 and a lower flank 5. The upper flank 4 is 2.8mm thick. The lower edge 5 is longer than the upper edge. 4 Outside the range of the actual groove 3, ie in the area of lower edge 5, which protrudes from the upper edge 4, there are a recess 6. The recess 6 is inclined by a extending boundary wall 7 and a vertically extending Boundary wall 8 is formed. The sloping wall opens in Direction of the floor surface 9 funnel-shaped. With the vertical to the floor surface becomes a 15 degree angle in the present case locked in. The sloping wall 7 serves the transition from the actual area of the groove 3 to the recess 6. The perpendicular to the Floor surface 9 extending wall 8 forms a wall of the Locking element 10. The locking element 10 is located at the open end of the protruding flank or lip 5 of the panel 1. The locking element 10 is in the present case to the Bottom of the recess 6 by 0.7 mm. The wall 8 forms a Contact or locking surface, which is used to lock the panels 1 and 2 parallel to the floor surface 9 and perpendicular to the joint 11th contributes.

The panel 2 has a spring 12 on the side. In the connected state the two panels is the spring 12 in the groove 3. The thickness the spring 12 is adapted to the width of the groove so that up and down there is no game. The open end of the spring 12 has on the lower side an obliquely extending boundary 13. It here remains a distance to the adjacent edge 5 of the groove 3. Die oblique boundary 13 causes the spring 12 slightly in the groove 3 can be threaded. In particular, the recess 13 suitable to the spring 12 by means of a rotational movement about the Connecting joint 11 around in the groove 3 introduce.

Below the spring 12, a protruding nose 14 is provided. As a result, a recess 15 is formed by milling of the Bottom of the panel 2 can be made. The wall 16, the Transition between the recess 15 and the nose 14 forms runs perpendicular to the floor surface. The wall 16 also forms one Locking or contact surface, in interaction with the limiting wall 8, the positive locking parallel to Floor surface 9 and perpendicular to the joint 11 causes. Because the Contact surfaces or locking surfaces 8 and 16 perpendicular to Floor surface 9 run, this is a particularly safe positive locking between the two panels 1 and 2 in Achieved compared to the prior art, as he, for example, from the Publication WO 97/47834 A1 is known. The positive locking due to the locking surfaces 8 and 16 will continue through it improves that the protruding lower edge 5 sufficiently rigid is trained. The lower edge 5 is formed sufficiently rigid, if the panels 1 and 2 do not push through each other within each other a level can be connected. Connecting by Moving in a plane is also from the aforementioned Publication WO 97/47834 A1 known.

To the positive "locking parallel to the floor surface as well as perpendicular to the connecting joint 11 to further improve the Locking surfaces 8 and 16 be undercut. One is enough Deviation of a few degrees from the vertical course. The Locking surface 8 is then so inward to the recess 6 back inclined. Accordingly, the locking surface 16 is inwardly in Direction of the recess 15 inclined. Hook in the connected state the locking surfaces 8 and 16 then together. These Embodiment is particularly advantageous when joining should be made possible by moving in a plane. In this case for example, the projecting edge 5 sufficiently far be bent down so as to connect by moving in one Level allow. To make sure that the laid in improved State not an unwanted loosening by sliding into a level occurs, the aforementioned hooking is the Locking surfaces 8 and 16 particularly advantageous. By the Ineinanderhaken is prevented, for example, the lower edge. 5 can bend away due to shocks.

The protruding below the spring nose 14 is the open end of the Spring limited by an inclined wall 17. in the locked state, the limiting wall 17 is parallel to the wall 7. In the locked state, as shown in Figure 1, remains Play between the wall 17 and the wall 7. This may be a few tenths Millimeters. In the present case, it is for example 0.5 mm.

Contacting the locking surface 8, the locking surface 16, so occurs the above-mentioned clearance of 0.5 mm between the delimiting wall 17 and the limiting wall 7. At the same time remains on the surface of the floor a gap, for example, 2.5 mm thick. It remains between the panels 1 and 2 in the locked state so first a game. This makes it possible to connect the panels together, although the locking surfaces 8 and 16 in the present example perpendicular or at least nearly vertical. Even one Undercut is possible. The game is then usually 2/10 Millimeters and more. How big the game should be, depends in particular on the shape and dimension of the contact surfaces 8 and 16 off. A specialist is in each case by a few Try to determine how big the game should be at least to get that Connect even with steep, vertical or undercut running To allow contact surfaces 8 and 16. That's why it can also be appropriate, a much larger game of for example 1 mm to provide.

In the locked state, panel 1 opposite panel 2 along the Verbindungsfuge 11 are moved. This can be during installation be desired to bring panels in the final position. Compared to the prior art, as he, for example, from the Publication WO97 / 47834 A1 is known, manages the move especially easy.

To prevent moisture and dust from entering the gap, the on the surface 9 of the two panels in the connecting joint eleventh remains, is or will be a cord or rod-like element 18th brought in. The cord or rod-like element 18 has in present case has a rectangular cross section and corresponds to this essentially the shape of the gap. The string or rod-like Element 18 thus closes flush with the surface 9 of the surface Panels 1 and 2 off.

The cord or rod-like element 18 is preferably somewhat wider than the gap in which the cord or rod-like element is introduced. in the In this case, it is slightly wider than 2.5 mm. The depth of the cord or rod-like element 18 corresponds to the thickness of the flank 4th In the present case, the cord or rod-like element is thus 2.8 mm deep and sits on the upper side of the nose 12. This will ensures that the cord or rod-like element 18 is not so deep get into the gap that no flush termination at the Surface 9 is achieved.

The cord or rod-like element 18 is made in the present case a silicone material. This is elastic and therefore can be compressed.

The gap into which the cord or rod-like element 18 is inserted, expands downwards. In the present case, the extension is proceeding funnel-shaped through the walls 19 and 20. The expansion can be minimal be. It only takes a few tenths of a millimeter. By the expansion will achieved that the cord or rod-like element 18 in the area the recess expands when it is slightly wider than the gap. This ensures that the cord or rod-like element 18 firmly sitting in the gap. An unwanted loosening of the cord or rod-like Element in the laid state is counteracted,

The cord or rod-like element 18 can finally into the gap be introduced. It is also possible that a panel 1 or 2 by the manufacturer already with the cord or rod-like Element 18 has been connected. Due to the compressibility of the Material can be compared to the state of the art, as he from the Publication WO97 / 47834 A1 is known, but the desired Achieve effects. A comparatively easy displacement along a common connection is interconnected Panels possible. The connection succeeds even at vertical or undercut extending contact surfaces 8 and 16.

The embodiment according to Figure 2 differs from the Embodiment, as shown in Figure 1, in particular by undercut locking or contact surfaces 8 and 16. In this way it is particularly well ensured that the panel 2 from the panel 1 not can be solved when the panel 2 in the direction of arrow 21st is pulled. In particular, with an elastic edge 5 this is Embodiment particularly advantageous.

The embodiment according to Figure 3 differs from the Embodiments according to Figure 1 and Figure 2 by providing a another cord or rod-like element 22, which between the Locking surfaces 8 and 16 is introduced. This causes that the game between the panels is relatively large in relation to the Embodiments according to Figures 1 and 2 may be, without the cord or rod-like element 18 on the surface 9 of the panels 1 and 2 to enlarge. In addition, the cord or rod-like element 22 to compensate for shrinkage effects, the may occur in particular when the panels are out of one Wood material are made.

If panels are used with a rectangular surface, so is the To prefer embodiment of Figure 3 on the narrow sides, there Here shrinkage effects can be particularly noticeable. At the longitudinal sides, the effect of shrinkage effects is less.

If panels are made of wood-based panels, they will shrink warm temperatures. Become panels of a wood material exposed to damp rooms, so they expand. The Embodiment according to Figure 3 is therefore preferred in rooms provided, which are heated regularly. To name here For example, a living room of a family house.

The cord or rod-like element 22, which is between the Contact or locking surfaces 8 and 16 is located, points in Cross section regularly smaller dimensions compared to the cord or rod-like element 18, which on the surface 9 of the floor adjoins. In the present case, the cross section of the cord or rod-like element 22 designed approximately square. The square is about 1 x 1 mm in size.

In the embodiment according to FIG. 4, the recess 6 has a further depression or recess 23. The depression 23 adjoins the locking surface 8. In the recess 23 is located at Lay a cord or rod-like element 22. In the uncompressed Condition extends the cord or rod-like element 22 partially from the further recess 23 out. Panel 2 with the panel 1 connected, the nose 14 first pushes the cord or rod-like Element 22 completely into the depression 23, as in FIG. 4 is hinted at. Then panel 2 in the direction of panel 1 moves, so relaxes the cord or rod-like element 22 and passes between the locking surfaces 8 and 16. This state is illustrated in the figure 5. In the embodiment according to FIG. 4, the Length of the nose 12 so dimensioned that the panel 2 by a vertical lowering relative to the panel 1 in the in Figure 4 shown position can be brought. The lowering movement is indicated by the arrow 24. Subsequently, panel 2 along the Arrow 25 pushed in the direction of the panel 1. The way to that Panel 2 is moved is very small and can be reduced to a few 1/10 Limit millimeters. If the displacement is very short, then the times required for laying are reduced accordingly. This is in particular compared with the aforementioned prior art the case, for example, compared to the state of the art, as he out the document WO97 / 47834 A1 is known.

An embodiment in which, in a first step, a vertical Lowering along the arrow 24 is possible, is preferred Narrow sides of a panel with a rectangular surface used. At The longitudinal sides of such a connection type is then preferred at the joining by a rotational movement about the connecting joint 11 around succeeds. Such a state of the art in which joining is effected by a rotational movement, for example, goes from the WO01 / 48332 A1 or from the document US 4,426,820 out.

If panel 2 is pushed along the arrow 25 in the direction of the panel 1 has been reached, the situation shown in Figure 5 is reached. In the Connecting joint 11 will now be a cord or rod-like element 18 introduced and the connection is completed. It may be enough Panel 2 only by one to two millimeters to move from the Situation according to Figure 4 to get to the situation according to Figure 5. These Track is still relatively short compared to the routes that in the prior art, as for example from the document EP 00843763 B1 is known, are required.

In the figure 6 is indicated that Figure 2 by a rotational movement is locked around the joint 11 around with the panel 1. In In this case, the spring 12 can be relatively long compared to the Be embodiment of Figure 5, so that a connection no longer is possible, which first a lowering movement according to arrow 24th (Figure 4). Then a relatively stable positive Connection perpendicular to the floor surface in comparison to FIG. 4 reached.

The cord or rod-like element 22 may have a circular Have cross-section. The diameter is for example about 2 mm. The recess 23, in which the cord or rod-like element 22 partially located, typically has a comparable width. In the example, the width would then be 2 mm. The depth can be half as tall. It would then be 1 mm.

Does a panel include two cord or rod-like elements in the aforementioned manner, so a cord or rod-like element 18th be introduced particularly easily from the surface by First, with the help of an appropriate tool, the gap at the Surface against the elastic properties of the cord or rod-like element 22 is pressed apart. in the then pressed apart state is the width of the gap at the Surface in particular wider than the width of the cord or rod-like element 18, which are brought into the gap should. The cord or rod-like element 18 can then be special simply be inserted. Then the tool is removed and Panel 1 on the panel 2 due to the expansion of the cord or rod-like element 22 introduced. This move due to the Expansion of the cord or rod-like element 22 stops as soon as Equilibrium is reached. There then remains no gap at the Surface.

The cord or rod-like element 18 on the surface 9 protects then against the ingress of dust and moisture.

In the figure 7, an advantageous embodiment of a cord or rod-like element 18 shown, which from the surface ago is introduced. In cross section, this cord or rod-like Element 18 on both sides of a kind of barbs 26 and 27. To that cord or rod-like element 18 particularly good laterally to be able to squeeze, is a curved recess 28 at the Bottom provided. Furthermore, the cord or rod-like element 18 inside, for example, have a thread 29 to To avoid stretching effects. The thread 29 therefore consists of a non-stretchable material, the according to Figure 7 of a compressible material such as silicone is wrapped.

The visible in the inserted state surface 30 of the cord or rod-like element 18 may be configured flat to a reach flat conclusion with the panel surface 9 can.

FIG. 8 shows two panels 1 and 2, in which the spring 12 of the panel 2 has been pushed into the groove 3 of the panel 1. The above Flank 5 has at the top a rectangular in section recess 30 on. The spring 12 has at the bottom a rectangular in section Recess 31. The two recesses 30 and 31 are the same wide. They are on top of each other when the spring 12 of the panel 2 has been completely pushed into the groove 3 of the panel 1, so that no gap remains at the common connecting joint 11. The Recesses 30 and 31 form a channel into which a rod or string element is pushed in to panel 1 with panel 2 parallel to the surface 9 and perpendicular to the joint 11 to lock. The sliding of panel 2 in the direction of panel 1 succeeds to the position shown in Fig. 8 slightly, because no protruding Locking element must be overcome. In the condition shown in FIG 8, it is also very easy to move a panel 2 relative to the panel 1 along the joint joint, as the Panels are locked only perpendicular to the surface 9.

FIG. 9 differs from FIG. 8 by a rod-like element 32, which in the channel formed by the recesses 30 and 31 is finally pushed into it. The rod-like member 32 is almost as wide as the width of the recesses 30 and 31, thus at the Surface 9 no gap in the joint 11 occurs. The material, from which the rod or cord-like element 32 is, then exists preferably of a little or no compressible material, so the emergence of a gap at the surface 9 in the To avoid connecting joint 11. Metal or a wood material can as Material therefore be used.

Form the panels 1 and 2 in the manner shown in Figures 8 and 9 a closed surface, it is, for example, optical Reasons appropriate, on the other pages also such Provide coupling elements that a closed surface is formed. In particular, it is appropriate then narrow sides of a Form rectangular-surface panels so that the final Locking by the insertion of a rod 32 is carried out. To the Long sides are then to prefer such coupling elements, at which connect by means of a rotary movement about one Connecting joint occurs. At the same time no gap remains the surface 9 between two panels 1 and 2. The joint 11 is so closed. This embodiment is shown in FIG. The Contact surfaces 8 and 16 are inclined to connect by means of allow a rotational movement despite a lack of play. The projecting flank 5 is preferably rigid to form a stable Locking of the panels 1 and 2 in the installed state guarantee.

Are the panels 1 and 2 in an alternative to the figures 8 and 9 Embodiment designed such that on the surface 9 in the Connecting joint 11 remains a gap, it is useful in this rod or cord-like element 18 introduced, which, for example made of silicone or rubber. Conveniently, the rod or cord-like element 32 made of Teflon or a material with comparable flexibility and smooth surface. Then that succeeds Insertion of the rod or string-like element 32 in the formed by the recesses 30 and 31 formed channel relative without problems and especially when the narrow sides of a Panels are designed in this way.

The rod-like element can be shaped differently in cross section. So can this be constricted. The cross section of the recesses 30 and 31 are then suitably shaped correspondingly, so that undercut contact surfaces 8 and 33 and 34 and 35 are present. Around not to pay attention to a special position when pushing have, the rod-shaped element has a circular cross-section on. Correspondingly semicircular recesses 30 and 31 shaped.

The insertion of the rod 32 is particularly easy when at least one side comes to a point. Preferably then both sides run pointed to, so the consumer does not need to pay attention to, with which end the rod is threaded into the channel.

FIG. 11 shows the case where the recesses 30 and 31 are located Rejuvenate towards the opening. The associated rod-shaped element 32 has a constriction. This results in undercut contact surfaces. This embodiment is particularly advantageous when the flanks 4 and 5 of the groove 3 are the same length, since then this relatively thin and thus are relatively elastic.

FIG. 12 shows an embodiment in which the locking element 36 of the panel 2 by vertically lowering into the recess of the Paneels 1 can be brought. The two locking elements 36 and 37 have semicircular recesses 30 and 31, in the for the purpose of final locking a round rod 32 pushed becomes. At the connecting joint 11 no gap or clearance remains. It is sufficient for connecting a vertical lowering of panel. 2 opposite panel 1, without having to move the panels afterwards Need to become. If not on all sides of a panel Connecting elements are provided according to Figure 12, it is again particularly advantageous, in a panel with a rectangular surface the longitudinal sides to provide an embodiment in which the connecting takes place by a rotational movement about a connecting joint 11. By way of example, reference is made to FIG. 10, which describes such Coupling elements shows. On the narrow sides is then one Embodiment provided in accordance with Figure 12. Will such a panel with another on the long sides by a rotary motion it can do the same at the same time with a neighboring, already laid panel over narrow sides be connected without this panel final in the final position must be postponed. To the final Locking is then pushed only a rod 32 in the channel, which is formed by the recesses 30 and 32. The shape of the Recesses 30, 31 and 37 and the locking member 37 may deviate from the embodiment shown in Figure 12. It comes only that the forms are such that finally the desired glueless locking in the directions mentioned possible is

The invention makes it possible to use the following method for joining of two panels. A panel 1 is provided with a panel 2 brought together so that recesses 30 and 31 a channel form. The coupling elements are such that then the Panels are locked in a first direction. Into the channel becomes then pushed in a rod-shaped element. The Coupling elements are such that then the two panels both perpendicular to the common surface 9 and parallel to common surface 9 and at the same time perpendicular to the joint 11 are locked.

The element 32 may also be made of an elastic material preferably high restoring force exist. It can then be in one of both recesses 30 or 31 have already been factory-fixed be. The cord-like element then consists in particular of silicone.

A rod or cord-like element according to the invention lies especially if the diameter is at least 0.5 mm, preferably at least 1 mm. Indicates the rod-like or string-like Element has a rectangular cross-section, so length and Width of the rectangle preferably at least 0.5 mm, more preferably at least 1 mm. A rod or cord-like element in the sense of In particular, invention is also present if it is a is independent part, which as such in an embodiment with can be glued to a panel. The physical properties do not change. Then is such a rod or string To distinguish element from the case in which a paste or similar is applied to a panel in a flowable state and the paste subsequently solidifies.

Figure 13 shows a particularly preferred embodiment, in which a Panel 2 against a panel 1 is first lowered to Connecting panels together. Panel 1 has a lower projecting edge 5 on. The open end of the projecting flank 5 is provided with a protruding locking element 10. Above the protruding flank 5 is a relatively short protruding flank 38 intended. The flanks 5 and 38 form a groove 39. The upper flank 38 has a distance from the surface 9 of panel 1. The upper Flank 38 is relatively short. Typically, the length is the protruding upper spring 38 only a few tenths of a millimeter. The Length of the flank 38 is typically at least 0.2 mm, more preferably 0.4 mm. The length of the protruding spring 38 should not exceed 1 mm. Particularly preferred is the maximum length of the protruding spring 38 0.6 mm. The length with which the flank 38 protrudes is measured relative to the edge at which the two panels 1 and 2 collide on the surface. The Flank 38 is thus opposite the upper edge in the Connecting joint 11 to the aforementioned dimensions.

Panel 2 has a projecting flank 40 at its top. Near at the open end of the projecting flank 40 is a Locking element 36 is provided, which extends below the flank 40 and extends substantially downwards.

Panel 2 is compared to a previously laid panel 1 for the purpose the locking while maintaining a horizontal position lowered, the locking element 36 enters the recess in through the protruding flank 5 with the protruding Locking element 10 is formed.

The locking element 36, which below the above Flank 40 is attached, has a protruding spring 41. The protruding spring 41 has seen from the panel 2 to the outside. The Projecting nose 41 reaches the end of the lowering, the in Direction of the arrow 24, by a sliding movement in Direction of the arrow 25 in the groove 39 into it. The panels 1 and 2 are then locked together. Glue does not have to be used for locking become.

In the locked state, there are preferably at least two Support surfaces 42 and 43, with which coupling elements 36, 40, 41 of the Panel 2 on coupling elements 5, 10, 38, 39 of the panel. 1 rest. The first bearing surface 42 is defined by the open end of projecting flank 40 of the panel 2 and the spring 38 of the panel 1 educated. In particular, this ensures that it in the Connecting joint 11 is no stepped transition, since the Support surface 42 is located near the connection joint 11.

In the case of Figure 13, the second bearing surface 43 by below projecting locking element 36 of the panel 2 and the underneath part of the flank 5 formed. This will achieve that upon entering the floor, the load on two bearing surfaces is distributed. If only the bearing surface 42 were provided, then the spring 38 correspondingly heavily loaded. The mechanical Requirements for the stability of the spring 38 are correspondingly high. To the mechanical load on the spring 38 when entering To reduce, the second bearing surface is provided.

If only the support surface 43 provided, so would the open End of the flank 40 exposed to very high loads. Besides, it is then, technically difficult, a smooth transition in the To ensure joint 11 at the surface 9.

Although a second bearing surface could also in the above Locking element 10 at the end of the open edge 5 with the above be provided part of the panel 2. The bearing surface here provide, however, with respect to the solution shown in Figure 12 the disadvantage that at the open end, the edge 5 particularly far can be bent down, as the materials used typically have some degree of elasticity. The possibility, It is desirable to be able to bend the open end downwards Locking element 36 to bring into the recess, the by the projecting flank 5 and the above Locking element 10 is formed. Within the recess the Provide support surface by the projecting edge 5 and the Locking element 10 is formed, has the advantage that in this area the edge 5 are deflected less far down can. Also, this area is typically fixed on the floor on, so that also for this reason a deflection is avoided which is undesirable where a bearing surface 43 should be provided, so as to mechanically relieve the bearing surface 42, which is close to the connecting joint 11 is located.

Preferably, exactly two bearing surfaces are provided. With continue namely, there will be an increasing number of bearing surfaces manufacturing increasingly difficult, the desired smooth Transition between panel 1 and panel 2 on the surface 9 provide.

Thus, the downwardly projecting locking element 36 in the Recess can pass through the projecting edge 5 and the protruding locking element 10 at the end of this flank. 5 is formed, it is advantageous, the projecting edge 5 at least on bend open end down. To this too allow, for example, if panel 1 is on a smooth surface Screed floor rests, is at the bottom of the protruding edge. 5 a recess 44 is provided at the open end. This recess 44 is formed for example by a slope. Lies on panel 1 a smooth floor, so there is a gap at the open End of the projecting flank 5 and the floor. Because of this Distance manages the locking element 10 slightly outwards wegzubiegen, so that the locking element 36 in the recess can pass through the projecting edge 5 and the Locking element 10 is formed.

Pads 42 and 43 are preferably small to choose because otherwise for manufacturing reasons it is difficult to Clutch elements produce so precisely that a smooth transition from panel 1 to panel 2 at the surface 9 at the joint 11 is provided. For this reason, according to FIG provided that the lower edge 5 at the support surface 43 a has slight elevation. This ensures that the width of the Pad 43 significantly smaller than the width of the down protruding locking element 36 is, as in the figure 13 is clarified. The support surface 43 is so limited in space and kept relatively small. It is thus easier to make a smooth transition to provide at the joint. Of course, too the protruding locking element 36 has a highlight, so as to ensure that the support surface 43 is relatively small is.

To be able to mill coupling elements, for example, the panel 1 clamped at the top 9 and at the bottom 45. It remains then only little space to mill with milling cutters. The in Figure 13 shown coupling elements are created so that it is sufficient To position the cutter laterally and at an angle to the coupling elements milling.

Figures 14 and 15 illustrate the situation when milling. Will that be Clamped panel 2, so there is very little space available to the Milling coupling elements can. The coupling elements of Panels 1 and 2, shown in Figure 13, are such that they can be milled despite the limited space available. One Milling cutter cuts diagonally from above in the direction of arrow 46. A second cutter mills from the side in the direction of arrow 47.

The panel 2 is for example with the decorative top 9 on a Treadmill 48, as the figure 14 illustrates in section. On the the other side there is follower fastener 49 to the Clamp panel 2. Due to the clamping elements 48 and 49 is the space restricted, which is available for routers can stand. Therefore, it is necessary, the coupling elements so to design that milled in spite of limited available space can be.

The coupling elements shown in FIG. 13 fulfill this condition.

FIG. 15 shows the situation with the coupling elements shown in FIG Figure 13 are shown in the panel 1. Although FIG. 15 relates again on panel 2. However, this is the page that the in Figure 14, opposite side. A router is located laterally and approaches in the direction of arrow 47 to the panel 2 zoom. One another cutter is directed according to the arrow 50. This mills of coming diagonally down.

Instead of two milling cutters, several can be used. In all cases it is the coupling elements shown Ensures that can be milled in a relatively small space. So In particular, it is not necessary, according to the arrow 51 shown with a cutter to the panel 2 zoom. The arrow 51 is mirror image inclined to the arrow 50. Such a direction is practical not feasible because due to the band 48 no room for a Such cutter is available.

A milling cutter, which approaches the panel 2 in the direction of the arrow 51, would be required if undercut coupling elements accordingly Need to become. This is not necessary in this case.

FIG. 16 again shows the panels 1 and 2 already shown in FIG. 13 have been shown. The situation becomes clear during the Lowering of panel 2 in the direction of arrow 24, just before the after below protruding locking element 36 enters the recess, through the projecting lower edge 5 with the at the open end protruding locking element 10 is formed. The open end 52 of the flank 40 of the panel 2 protrudes beyond the spring or nose 41, which has the locking element 36 laterally outward. hereby it is avoided that during lowering the protruding nose 41st damaged the edge 53, the panel 1 the transition from the Surface 9 forms in the joint. Would this Damage would damage the surface be visible, so that such damage can be avoided in any case should. Therefore, it is advantageous to the nose 41 in the manner shown rearrange arranged.

Thus, the downwardly projecting locking element 36 easily into the Recess may be introduced by the protruding flank 5 is formed with the protruding locking element 10, tapers the downwardly projecting locking element 36 advantageous downwards. In the present case are for this purpose For example, two inclined walls 54 and 55 of the Locking element 36 is provided which this taper down effect. To support can be provided, a slope 56 to provide at the panel 1. The slope 56 is located at the open End of the spring 38 of the panel 1. It runs between the open End of the spring 38 and the top.

If the panel 2 continues towards the panel 1 in the direction of the arrow 24 lowered, so is due to a corresponding dimensioning of Spring 38 and the spring 41 ensures that the end 52 does not the edge 53 can come from above coming. This is further ensures that damage to the edge 53 are avoided.

If the downwardly projecting locking element 36 is lowered, then Finally, there is a position where the downward protruding Locking element 36 is clamped in the recess, the by the lower projecting flank 5 and the above Locking element 10 is formed. To lower further, now has the opening of the aforementioned recess a little bit in elastic way can be extended. For this purpose, the Coupling elements designed so that the above Locking element 10 at the end of the projecting lower edge 5 a slightly in the direction of the arrow 57 can be bent away. To this is also possible on a smooth and hard surface is below the protruding flank 5 at the open end a Recess 44 provided.

Is the downwardly projecting locking element 36 far enough in the recess comes in, through the lower protruding flank 5 is formed with the protruding locking element 10, so can the panel 2 in the direction of the panel 1 along the direction of the arrow 25th be moved. The dimensions are chosen so that a Displacement of a few tens of millimeters is enough to the Close connecting joint 11. Since the open end 52 along the Arrow 25 is brought laterally to the edge 53 is ensured that the lowering does not lead to damage of the edge 53.

So that the spring 41 finally pass into the groove 39 can, above the spring 41, a slope 58 is provided. The feather 41 tapers towards the open end. To thread the spring 41st into the groove 39, has the groove 39 at the top expediently a slope 59, so that the groove 39 for Opening widens.

The contact surface 16 is very steep relative to the slope 54, so as to reliable mechanical locking parallel to the surface 9 as well to ensure perpendicular to the joint 11. Correspondingly steep the contact surface 8 extends at the locking element 10.

The panel 2 contacts the panel 1 at the joint 11, the Support surfaces 42 and 43, the contact surfaces 8 and 16 and in the Oblique 58 and 59. Moreover, free spaces are within the Connecting joint provided so that a distance between the two Panels remains. This ensures that Manufacturing inaccuracies in the production do not entail that the panels are connected so that, for example, a gap in the connecting joint 11 remains on the surface.

The embodiment according to FIG. 17 differs from that of FIG Embodiment according to Figure 13 primarily in that the Support surface 43 is inclined, so that these in the direction of the groove 39th drops. The slope supports the final move of Panel 2 in the direction of the panel 1 along the arrow 25. Beyond the recess 44 is much more extensive compared to Recess according to FIG. 13. The recess 44 terminates in the manner that below the support 43, the panel 1, for example, firmly on a underlying screed rests. This ensures that only the front portion of the flank 5 bent downwards can be. Below the support surface 43 is such a turn avoided.

Claims (44)

Panels which have coupling elements such that two panels (1, 2) can be positively connected both perpendicular to the common joint (11) and at the same time parallel to the surface (9) and perpendicular to the common surface (9),
characterized in that
a first panel (2) can be connected to the second panel (1) by lowering, perpendicular to the common joint (11) and at the same time parallel to the surface (9). Panel according to claim 1, in which the first panel (1) has a lower flank (5). with an upwardly projecting locking element (10), the opposite a short flank (38) protruding therefrom. Panels according to claim 1 or 2, wherein the short flank (38) of the first Panel (1) has a distance from the surface (9). Panels according to one of the preceding claims, in which a short Flank (38) of the first panel (1) is at least 0.2 mm long and / or maximum 1 mm long. Panels according to one of the preceding claims, in which the second Panel (2) has an upper protruding edge (40) with one down having protruding locking element (36). Panels according to the preceding claim, in which the downwards protruding locking element a protruding from the second panel (2) having pioneering spring (41). Panels according to one of the preceding claims, in which one of second panel (2) pioneering spring (41) is such that these in the Connection to a lowering (24) of the second panel (2) by a displacement (25) of the second panel (2) enters a groove (39) of the first panel. Panels according to the preceding claim, in which the Coupling elements are such that the way of moving (25) not more than 1 mm, preferably not more than 0.6 mm, more preferably not longer than 0.4 mm. Panels according to one of the preceding claims, in which a first Support surface (42) in the connected state of the panels (1, 2) is provided, by an upper projecting edge (40) of the second panel (2) and a short edge (38) of the first panel (1) is formed. Panels according to one of the preceding claims, in which a second Support surface (43) is provided in the connected state of the panels (1, 2), by a lower protruding edge (5) of the first panel (1) and a downwardly projecting locking element (36) of the second panel (2) is formed. Panels according to the preceding claim, in which the second Support surface (43) is less wide than the downwardly projecting Locking element (36) and in particular due to a Emphasis that at the lower protruding edge (5) of the first panel (1) is provided. Panels according to one of the preceding claims, in which a lower protruding flank (5) of the first panel at the open end at the bottom a recess (44), in particular formed by a slope becomes. Panel according to one of the preceding claims, characterized by a cord or rod-like element (18, 22, 32) which is located between the panels (1, 2) in a recess. Panels according to one of the preceding claims, wherein the cord or rod-like element (18, 22, 32) is wider than the width of the recess. Panels according to one of the preceding claims, wherein the cord or rod-like element (18, 22, 32) made of a compressible material, especially made of Teflon, silicone or rubber. Panels according to one of the preceding claims, in which the panels (1, 2) in particular including the coupling elements (3, 12, 6, 14, 36, 37) entirely or predominantly made of wood and / or consist of a wood material. Panels according to one of the preceding claims, in which at least one Panel (1, 2) one of a wood material, in particular one of HDF or MDF having existing support plate. Panels according to one of the preceding claims, in which on the Top (9) a decorative paper or a decor is provided. Panels according to one of the preceding claims, in which at least one Panel (1, 2) has a support plate, which consists of several together pressed papers, which are in particular provided with amino resin. Panel according to one of the preceding claims, wherein the cord or rod-like element (18, 22, 32) one of the panels (1, 2) separated Component is, which in the recess in particular by press fitting is held. Panel according to one of the preceding claims with a game which at two interconnected panels (1, 2) occurs at least when no cord or bar-like elements (18, 22, 32) between the two Panels are. Panels according to one of the preceding claims with vertical or undercut contact surfaces (8, 16, 33, 34, 35) of coupling elements, the connecting parallel to the surface (9) and perpendicular to Connecting joint (11) or perpendicular to the surface (9) effect. Panel according to one of the preceding claims with a groove (3) as Coupling element having a rigid or elastic lower edge (5), the in particular protrudes relative to the upper edge (4) of the groove. Panels according to one of the preceding claims, wherein the cord or rod-like element on the surface (9) of the panels (1, 2) in the Recess is pressed into it. Panels according to one of the preceding claims, in which the Coupling elements (3, 12, 6, 14) preferably on longitudinal sides of the panels (1, 2) are designed so that these exclusively by a rotational movement to the common connecting joint (11) can be connected. Panels according to one of the preceding claims, in which the Coupling elements (3,12, 6, 14) preferably on narrow sides of the panels (1, 2) are such that they can be moved by moving in one plane and / or by a vertical lowering of a panel (2) relative to the surface (9) a second panel (1) can be connected. Panels according to one of the preceding claims, wherein the cord or rod-like element (18, 22, 32) at least 0.5, preferably at least 2 mm and / or at most 10 mm, preferably 5 mm wide. Panels according to one of the preceding claims, in which the cord or rod-like element (18, 22, 32) between two contact surfaces (8, 16) located, which has a locking parallel to the common surface (9) as well perpendicular to the common joint (11) effect. Panels according to one of the preceding claims, in which the cord or rod-like element (18, 22, 32) is located in a recess (23) and protrudes from this partially. Panels according to the preceding claim, in which the recess (23) on a contact surface (8) is adjacent, which serves to connect two panels. Panels according to one of the preceding claims, wherein the cord or rod-like element (18, 22, 32) has a rectangular or substantially has rectangular cross-section. Panels according to one of the preceding claims, wherein the cord or rod-like element (18, 22, 32) is laterally hook-shaped. Panels according to one of the preceding claims, wherein the cord or rod-like element (18, 22, 32) comprises a thread with connected compressible material and in particular with compressible Material is wrapped. Panel according to the preceding claim, wherein the thread is made a non-stretchable material and in particular a Fiberglass material exists. Panels according to one of the preceding claims, wherein the cord or rod-like element (18, 22, 32) is vulcanized to a panel and the second panel contacted when the first and the second panel miteinender are connected. Panel according to one of the preceding claims, which is 6 to 15 mm thick and / or 100 to 2000 mm long and / or 100 to 2000 mm wide. Panel according to one of the preceding claims with a rod-shaped Element (32) which between two panels in a recess (30, 31) so einschiebbar is that then the positive locking between present to the two panels. Panels according to the preceding claim, in which narrow sides of two panels (1, 2) with rectangular surface the insertable comprise rod-shaped element. Panels according to one of the preceding claims, in which one of the Common surface (9) visible cord or rod-like element in a recess is introduced, which below the surface (9) a Widening. Panel according to one of the preceding claims with at least two cord or rod-like elements (18, 22, 32) between two Connected panels are provided. Panels according to the preceding claim, in which the of the Surface underlying cord or rod-like element (22) is made of a material which, compared to the material from the the higher-lying cord or rod-like element consists of a larger one Has restoring force. Panels according to the preceding claim, in which the of the Surface underlying cord or rod-like element (22) a smaller diameter or smaller in relation to the cross section Dimensions than the higher lying cord or rod-like element (18). Covering, in particular floor covering, formed from panels according to one of previous claims. Covering after the preceding / claim, in which each panel with cord or rod-like elements (18, 22, 32) from the common surface (9) is visibly framed.

Images