Flooring panel

The invention relates to a floor panel according to the preamble of claim 1 and claim 33rd

From the <patcit id="pcit0001" dnum="WO0175247A1"><text>WO 01/75247 A1</text></patcit> a floor panel is known, having at a first lateral edge connecting means for locking in the transverse and vertical directions. These locking means are arranged on the longitudinal side of the panel and cause the latch by an insertion and pivoting of the connecting means into a corresponding recess of a second panel is performed. The lateral side of the panel has two snap-in hook that will engage in corresponding undercuts of adjacent panel during installation and impede the vertical movement between the laid panels. The two snap-in hook lie in the vertical direction to each other.

A disadvantage of such a profile is the fact that such a tread pattern not secure locking the panels to each other guarantees, given that the superposed snap-in hook are pressed in the installation movement and a resilient surface, such as carpet, with a strong appearance, the transverse side of the lock pops , This is partly due to the fact that the panel provided with the snap-in hook relatively easily angled to the corresponding panel at an occurrence, so that the panel is quasi unscrewed.

Object of the present invention is to provide a panel with the simple installation is possible and ensures a secure locking both transversely and vertically.

According to the invention the object is achieved by a floor panel with the features of claim 1 and by a panel with the features of claim 33rd The method for laying of such a profile allows quick and simple installation, wherein the durable locking the panels to each other is ensured. Advantageous refinements and developments of the invention are set forth in the dependent claims.

By the spacing of interlocking elements in lateral and vertical direction, two spatially separated locking points at the second side edge, in particular the transverse side, created, whereby a more secure locking to each other defined and laid panels is guaranteed. The arrangement of the form-fitting elements on two different walls increases the stability of the entire connection and prevents sliding by superimposing a plurality of consecutively arranged form-fitting elements, deformation of the form-fitting elements and ensures the effectiveness of the locking.

The second side edge has an extending from the bottom, step-shaped milled-out portion having an inner wall and an outer wall in an embodiment of the invention. On these walls a transversely extending interlocking element are formed, preferably milled, which engage in corresponding undercuts of an outgoing from the upper side, step-shaped milled-out portion of the joined second panel respectively. The radiation emanating from the upper side, step-shaped milled-out portion also has an inner and an outer wall, at which the respective undercuts are formed, so that there may be a form-fit locking in the vertical direction on the second side edge.

The radiation emanating from the bottom, step-shaped milled-out portion has a protruding toward the bottom paragraph of that forms an essentially horizontally oriented head surface, said heel one provides in the transverse direction, perpendicular to the second side edge effective locking. The substantially horizontally oriented top surface is used to set the minimum height offset and represents a relatively large contact surface for introducing vertically acting forces.

A further development provides that in the head area of ​​the paragraph, aligned in the longitudinal extension of the second side edge groove is incorporated. Through this groove a dust bag is provided in the when laying incurred attrition or impropriety can be included, without this having a negative impact on the laying accuracy. The groove further causes a slight spring effect so that the latch on the second side edge is under a certain prestress.

The walls of the paragraph are aligned to the head face at an acute angle, which is either easy insertion into a corresponding recess of the corresponding cut-out of the second panel, or when forming an undercut to the head face has an additional locking action result.

It has been found that a transverse extension of the head area in a range of from 2mm to 6mm very good shelf life values ​​and a very good locking action provides, wherein preferably the head face from 0.25 to 0.4 times the total transverse extent of the step-shaped milled-out portion having.

A particularly effective and simple interlocking on the second lateral edge is provided when a form-locking element on the end edge of the upper side projecting horizontally. It may be appropriate that between the top and the excellent form-fitting element a recess is arranged, which undercuts the final edge of the panel to accommodate any existing abrasion or deforming material of the panel, so that a tailor-made possible relocation is made possible with minimum gap width, since no abraded or deformed material exerts a blocking effect.

The second side edges opposite side edge of the panel has a emanating from the top, stepped cut-out with a protruding toward the top paragraph. This paragraph also has an aligned in the substantially horizontal top surface, whereby an undercut is formed in the lower region of the Absatzaußenwandung that corresponds with the corresponding interlocking element of the inner wall of the male side edge. The arrangement of the recess in the lower portion of the Absatzaußenwandung increases the effectiveness of the locking.

A further development provides that between the Absatzinnenwandung and the inner wall of the cut-out a horizontal base surface is formed, which is formed such that when laid panels, the head surface rests on the base surface and the tops of the panels lie in a plane, which means that minimal or no vertical offset between the panels is present. Through the interaction of the horizontal base surfaces and top surfaces a particularly accurate mapping and setting the height offset is possible, as the Abwinkelneigung adjacent panels is reduced, which increases the strength of the lock.

The Absatzinnenwandung emanating from the upper side cut-out is parallel or at a shallower angle than the corresponding Absatzinnenwandung of engaging in the laid state paragraph, to either bring about an accurate system or a component of movement for the two panels in the transverse direction to provide successive. By forming an undercut by the Absatzinnenwandung to the top surface of the respective paragraph, an additional locking effect is achieved.

In order to effect a particularly simple laying, the upwardly projecting heel extending from the upper side cut-out is not formed over the entire length of the second side edge, but is in particular at an end portion of the second side edge, the first in the direction of the provided with a spring is directed side edge, milled down to the base area or not formed. By removing or non-formation of the protruding paragraph, the pivoting about the axis to facilitate parallel to the first side edge, so that a blocking effect by the form-fitting elements only takes place when adjacent to the second and the opposite side edge adjacent panels at an acute angle to one another lie. This means that only a short distance has to be covered in the vertical direction to lock the panels of the second and the opposite side edge completely.

In a further development of the invention it is provided that one in the longitudinal direction of the side edge extending spring and on the opposite side edge of a corresponding to the spring recess is formed at the first side edge, said spring is constructed such that a locking by engaging in the recess the second panels and pivoting is about an axis parallel to the first side edge. The formation of the connecting elements on the first side edge as a so-called swiveling profile allows simple and reliable installation and effective locking in vertical and transverse direction. By not using an elastic deformation during the laying means inward pivoting the material structure of the panels is maintained and a good stability of the connection is ensured. Overall, a lock on a such Einschwenkprofil with the same effort can be made more stable when laying.

ensuring the formation of the recess as a groove with an upper lip and a lower lip that reliable tracing to be laid panels are each other so that a low height difference of the panels can be achieved, which is a sign of quality for floor panels. The spring can be latched in the transverse direction in the groove, wherein the lower front portion of the spring is rounded to allow a slight pivoting in the corresponding, formed groove. The spring is rounded at the bottom to allow for easy pivoting in the groove.

In a further development of the invention it is provided that the underside of the tongue has a continuously curved contour, the radius of curvature of the contour of the underside of the spring remains constant over at least substantially 90 °, so that a uniform swivel-in movement and a simple sliding on the corresponding can be carried out recess.

By the provision of corresponding locking elements of a sales front and an adjoining an undercut and a bearing support wall is achieved that an additional lock is effected in the vertical direction, if this form-fit elements engage in the mounted state. Through a second locking point in the vertical direction, it is possible that an active compound can be successfully performed by inserting and pivoting about a first side edge already. The tongue and the groove itself require doing any training such that a bias voltage between the panels is present so that the profile is in total less strain during installation. This is in addition achieved that the installation process is simplified as such.

In a further development it is provided that the form-fitting element on the wall of a projection and on the sales front is a corresponding recess, which were generated by a corresponding cut-out.

For locking in the vertical direction on the first side edge, it is provided that a top of the spring bears in the mounted state on an underside of the upper lip in order to effect a more positive locking. The parallel design of the underside of the tongue and the upper side of the lower lip to the top of the panels allows a large contact area of ​​a panel on the other panels, so that a low surface pressure prevails in the tongue and groove and a very low height displacement of the panels to each other can be realized.

ensuring the formation of the recess as a groove with an upper lip and a lower lip that reliable tracing to be laid panels are each other so that a low height difference of the panels can be achieved, which is a sign of quality in floor panels. The spring can be latched in the transverse direction in the recess, wherein the spring and the recess have a wedge-shaped contour in cross-section to allow easy insertion and to obtain a good self-centering of the spring in the groove.

In order to accommodate any existing abrasion that can occur during installation of the first side edge, without that presses the panels apart, the spring and the recess are configured such that in the mounted state between the front region of the spring and adjoining the upper lip area the recess is a gap, in which the abrasion can collect and serving successively for the movement of the two panels. The gap tapers toward the front section of the lower lip to create a smooth transition between the areas of full-surface facility and space for moving and accumulating abrasion. Possibly existing abrasion can also be included in a clearance formed between the spring and the top surface of the panels by an undercut.

The distal end of the spring is formed vertically and serves as a completion of the first side edge. Correspondingly, the groove base is also formed perpendicular to the top, so that a good assignment can be made of the panels in transverse direction.

To achieve effective locking in the transverse direction of two panels, the rear of the spring is a substantially flat surface at an angle to the horizontal, preferably 45 °, is formed. This surface interacts with a corresponding projection in the groove of the adjacent panels, and causes a locking in the transverse direction so that a slip-out is to the first side edge perpendicular effectively prevented.

To the contact surface to further increase, a support area, the groove of the second panel joins the spring to support a final paragraph, which increases the effective contact surface and a uniform distribution of force possible. The support area extends horizontally essential, however, to effect horizontal movement with vertical load with a slight inclination to the horizontal.

To possibly existing abrasion that may arise during the laying of the first side edges to take up, without that this creates a gap between the panels, is provided between the spring and the upper side of the panels, an undercut that forms a cavity in the installed state, in which can collect abrasion.

In an alternative solution, the floor panel is in the horizontal plane from a limited with a decorative layer or the like provided upper side and one to the support provided on a sub-floor bottom and provided with means for releasably connecting at least two panels, wherein at least a first side edge, a longitudinally the side edge extending spring and on the opposite side edge of a corresponding to the spring recess is formed, the spring being designed so that a locking by inserting in the recess of the second panel and pivoting about an axis is performed in parallel to the first side edge and a locking effected in the transverse direction and vertical direction. The recess is formed as a groove with an upper lip and a lower lip, in which the spring in the transverse direction is locked, wherein the lower front portion of the spring is rounded and is followed by a flattened, substantially horizontally extending support portion at the rounded front portion of the spring. Thereby a precise and large contact surface is achieved, which leads to a stable support due to the increased effective bearing surface and a reduced Abwinkelungsneigung adjacent panels. The support portion secures a large contact area and hence an accurate mapping of the two adjacent panels and disposed at the bottom of the spring.

By the provision of corresponding locking elements of a sales front and an adjoining an undercut and a bearing support wall is achieved that an additional lock is effected in the vertical direction, if this form-fit elements engage in the mounted state. Through a second locking point in the vertical direction, it is possible that an active compound can be successfully performed by inserting and pivoting about a first side edge already. The tongue and the groove itself require doing any training such that a bias voltage between the panels is present so that the profile is in total less strain during installation. This is in addition achieved that the installation process is simplified as such.

In a further development it is provided that the form-fitting element on the wall of a projection and on the sales front is a corresponding recess, which were generated by a corresponding cut-out.

For locking in the vertical direction on the first side edge, it is provided that a top of the spring bears in the mounted state on an underside of the upper lip in order to effect a more positive locking.

To the contact surface to further increase, a support area, the groove of the second panel joins the spring to support a final paragraph, which increases the effective contact surface and a uniform distribution of force possible. The support area extends horizontally essential, however, to effect horizontal movement with vertical load with a slight inclination to the horizontal. To possibly existing abrasion that may arise during the laying of the first side edges to take up, without that this creates a gap between the panels, is provided between the spring and the upper side of the panels, an undercut that forms a cavity in the installed state, in which can collect abrasion.

Advantageously, the first side edge on the long side and the second side edge is formed on the lateral side of the panels, so that the pivoting-in movement takes place via the long side. In this way it is ensured that a large length locking is achieved by means of the secure and stable Einschwenkverriegelung. Alternatively, it is provided that the spring and on the opposite side to face the groove is formed on the transverse side corresponding takes place and a positive lock on the insert in an inserted cut-out on the longitudinal side.

A further alternative consists in a floor panel, which is delimited in a horizontal plane from one with a decorative layer or the like provided to the upper side and a pad provided on a sub-floor bottom and is provided with means for releasably connecting at least two panels. At least one first side edge of a first panel is extending in the longitudinal direction of the side edge of spring and formed at the opposite side edge of a corresponding to the spring recess, the spring being designed so that a locking by inserting in the recess of the second panel and pivoting is about an axis parallel to the first side edge and causes a locking in lateral direction and vertical direction. The parallel design of the underside of the tongue and the upper side of the lower lip to the top of the panels allows a large contact area of ​​a panel on the other panels, so that a low surface pressure prevails in the tongue and groove and a very low height displacement of the panels to each other can be realized.

For locking in the vertical direction on the first side edge, it is provided that a top of the spring bears in the mounted state on an underside of the upper lip in order to effect a more positive locking.

ensuring the formation of the recess as a groove with an upper lip and a lower lip that reliable tracing to be laid panels are each other so that a low height difference of the panels can be achieved, which is a sign of quality for floor panels. The spring can be latched in the transverse direction in the recess, wherein the spring and the recess have a wedge-shaped contour in cross-section to allow easy insertion and to obtain a good self-centering of the spring in the groove.

In order to accommodate any existing abrasion that can occur during installation of the first side edge, without that presses the panels apart, the spring and the recess are configured such that in the mounted state between the front region of the spring and adjoining the upper lip area the recess is a gap, in which the abrasion can collect and serving successively for the movement of the two panels. The gap tapers toward the front section of the lower lip to create a smooth transition between the areas of full-surface facility and space for moving and accumulating abrasion. Possibly existing abrasion can also be included in a clearance formed between the spring and the top surface of the panels by an undercut.

The distal end of the spring is formed vertically and serves as a completion of the first side edge. Correspondingly, the groove base is also formed perpendicular to the top, so that a good assignment can be made of the panels in transverse direction.

To achieve effective locking in the transverse direction of two panels, the rear of the spring is a substantially flat surface at an angle to the horizontal, preferably 45 °, is formed. This surface interacts with a corresponding projection in the groove of the adjacent panels, and causes a locking in the transverse direction so that a slip-out is to the first side edge perpendicular effectively prevented.

To the contact surface to further increase, a support area, the groove of the second panel joins the spring to support a final paragraph, which increases the effective contact surface and a uniform distribution of force possible. The support area extends horizontally essential, however, to effect horizontal movement with vertical load with a slight inclination to the horizontal.

For the reception of abrasion which can occur when laying the first side edge, so that this does not create a gap between the panels, an undercut is between the spring and the upper side of the panels is provided, which forms a cavity in the installed state, in which the can collect abrasion.

Advantageously, the second side edge, as is already formed at the two described alternatives to the first side edge described above, so that a combination of appropriately trained first and second side edges realized the respective advantages. To avoid repetition, reference is made to the above embodiments, the described variants of the first and second side edges can be combined.

In a further variant of the invention it is provided that the floor panel, which is delimited in a horizontal plane from one with a decorative layer or the like provided upper side and one to the support provided on a sub-floor underside, is provided with means for releasably connecting at least two panels. At least a first lateral edge of a first panel is extending in the longitudinal direction of the side edge of the spring and formed on the opposite side edge of a corresponding to the spring recess, the recess comprises an upper lip and a lower lip and the lower lip a paragraph with a heel top and a paragraph front side forms that blocks with a corresponding undercut of the spring which installed panels in the transverse direction. At the second side edge running at an angle to the first side edge, and a spring at the opposite side edge at least one groove is formed at least with a first lip and a second lip, wherein on the spring and on at least one of the lips each have at least one parallel to the top recess is arranged. The recesses are mutually disposed such that they form a channel for accommodating a separate locking element with each other correctly linked panels. By this configuration, it is possible to use a conventional spring / groove design for locking in the vertical direction, as they are used for decades in floor panels which are glued together. The locking in vertical direction is effected by the insertion of the locking element, whereby a stress-free and thereby simple assembly of the second and its opposite side edge of a panel is carried out. Also, the profile is not damaged and the production of the profile is easy and inexpensive.

Preferably, the recesses are congruent to one another, so that a symmetrical locking member may be used, which is also inexpensive to produce. In particular, it is advantageous if the recesses formed by the channel is cylindrical, characterized the complete symmetry of the duct the insertion of the locking element can be particularly easily accomplished. Alternatively, polygonal X or V-shaped channels are triangular or quadrangular, and provided suitable. If the channel cross-section is not formed round, turns after insertion of the locking element a gearing effect, so that the transmitted forces are increased in the joint.

In order to accomplish a secure locking of the entire panel, it is provided that the channel runs over the entire length of the tongue and groove, whereby the force-transmitting surface is increased, the channel preferably extends below and parallel to the butt joint of the panels to forces close as possible to absorb or being able to introduce the butt joint of the panels.

An advantageous embodiment of the invention provides that the floor panel is at least partially made of an HDF or MDF material. Alternatively, can be made of an OSB material the entire floor panel. By using an OSB plant substance is a natural wood appearance, as well as achieved a structured surface. Similarly, the upper side of the panel can not have a decorative layer, but may be made of a wood material. The structure of the work piece can make a decorative layer unnecessary, so that as a top example, a layer of wood, wood fibers or wood chips can be applied. Also the panel can be formed completely or partially from a plastic, wherein preferably the area of ​​the connecting means with spring and recess (groove) is made of a plastic material.

Also, the embodiment with a separate locking element at said second side edge may be combined with the configurations of the first side edge as described above.

A method of laying a floor panel provides for that initially a plurality of panels to be connected and locked at their second side edges for laying a first row on the floor of a room. Then another panel is connected to the first side edge of at least one laid-out in the number panel as the beginning of a second row by inserting and pouring of the spring into the corresponding groove and locks. A new panel is directly abutted against the second lateral edge of the previously laid out further panel arranged with its second side edge in the second row opposite side edge, wherein the spring is inserted in the groove and the new panel at an angle to the first row is laid out panels is.

Subsequently, the new panel is pivoted about an axis parallel to the first side edge toward the floor until the form-fitting elements of the second side edge of the new panel rest against the corresponding milled relief of the further panel. Finally, the new panel is pushed down until a positive lock over the entire length of the second side edge has occurred. A further development provides that the depression is preferably carried out in a pulsed manner, in particular by means of one or more hammer blows or a handball assembly.

An alternative installation method provides that the placing of the new panel is performed in a distance between the second side edge and the second side edge of a previously laid out panel other opposite side edge, wherein the spring is not inserted in the groove. The new panel is angled to the first series is laid out panels. Anschießend the new panel is pivoted about an axis parallel to the first side edge in the direction of the floor and moved along the first side edge until the spring is received in the groove to form a butt joint and a channel. Subsequently, a locking element is inserted into the channel and effects a locking in the transverse direction along the first side edge.

In one embodiment of the profile of the second side edge and the opposite side edge such that the tongue and groove effects a locking in the transverse direction, arranging a new panel with its second side edge takes place directly in abutment on the corresponding side edge of the previously laid out further panel, with the spring is inserted into the groove and the new panel is angled to the first lined panel. Subsequently, the new panel is pivoted about an axis parallel to the first side edge towards the floor, until the spring is received in the groove to form a butt joint and a channel. Subsequently, a locking element is inserted into the channel to lock the panels and prevent pivoting in horizontal direction.

The process for unlocking a floor without a separate locking means provides for that initially a series of panels which are connected to the second and the corresponding, opposite side edges, around the axis is parallel to the first side edge, ie preferably pivoted parallel to the longitudinal sides. By the pivoting of a release at that side edge takes place, and the panels can be taken out from the groove of the still installed row panels. The extracted series panels is still at the second and these opposite side edges, preferably transverse sides interconnected. In order to separate the panels, one panel of the series is pivoted about an axis parallel to the second side edge. If the row is on the ground, the locked end is raised, so that the angle between the undersides of the panels is reduced and carried out a displacement of the locking position away from the floor. The interlocking elements of the panel are brought out of engagement with the interlocking elements of the corresponding cutout of the other panel, without the interlocking elements are destroyed, and the separated panel can be removed.

Embodiments of the invention will be described with reference to the accompanying figures. Like reference numerals in different figures denote the same objects. Show it:<dl id="dl0001"><dt>Figure 1 -</dt><dd>a cross sectional view of a floor panel having a first side edge;</dd><dt>Figure 2 -</dt><dd>two interconnected panels at the joint, in partial cross-section;</dd><dt>Figure 3 -</dt><dd>a floor panel in cross-sectional view of a second side edge;</dd><dt>Figure 4 -</dt><dd>two interconnected panels at a second connecting point, in partial cross-section;</dd><dt>Figure 4a -</dt><dd>a variant of Figure 4;</dd><dt>Figure 5 -</dt><dd>an alternative embodiment of the second and the corresponding, opposite side edge, in partial cross-section;</dd><dt>Figures 6 to 13</dt><dd>- Variants of the configuration of the tongue and groove and an inserted locking elements;</dd><dt>Figures 14 to 16 -</dt><dd>Variants of the profile at the first side edge in cross section; as</dd><dt>Figures 17 to 19 -</dt><dd>Cross-sectional views of a panel with an alternate profile configuration.</dd></dl>

1 shows a floor panel 1, which consists of a medium-density or high-density fiberboard (MDF or HDF). On its top 15, the floor panel 1 is provided with a decorative layer 16, which may be formed for example by a wood grain containing paper layer, which is coated with a serving as a wear protective resin layer. At the bottom 7 a sound-insulating 8 may be bonded to improve the footfall sound properties of the installed floor panels. As an alternative to the use of HDF or MDF board, the panel 1 are made of a material OSB (oriented strand board). At a first side edge, preferably on the longitudinal side of the panel 1, the panel 1 is provided with a spring 10 and on the opposite side with a groove 3rd The groove 3 and the spring 10 extend over the full length of the side edge. On the spring 10 an outwardly projecting, rounded-off nose is provided, which merges into a rounded front portion eleventh At these front region 11 joins the underside of the tongue 10, a flattened, in the installed state in the substantially horizontally extending section 12 at over which the panel 1 on a corresponding surface of the groove 3 of a second panel 2, as shown in Figure 2, supported.

an oblique surface 13 connects to the support portion 12, which causes a corresponding projection 5 of the corresponding groove 3 of the second panel 2, a locking in the transverse direction Q. In the assembled state, the spring 10 engages in a space formed by an upper lip 4 of the groove 3 undercut, so that along the first side edge is also a locking in the vertical direction V. The projection 5 is formed by a groove 3 final paragraph 9, on top of which a horizontally extending surface is formed. This area serves as a support for a bearing region 14, which adjoins the inclined surface 13 of the groove 10th By the supporting region 12 and supporting region 14 is a relatively large contact surface is provided on which the two panels 1, 2 lie on one another in the connected state. The inclined surface 13 causes, in connection with the projection 5, wherein a force acting from above force component has a movement component in the transverse direction towards each other, so that is reduced in the locked state, under the influence of the above component force of the gap between the two panels 1, the second

The shoulder 9 is formed such that in the transverse direction Q is no contact between a vertically extending surface of the shoulder and an opposing, likewise vertically extending surface of the first side edge exists. There is therefore a free space 30 in front, so that no undesirable locking effect and thus there is no gap between the two panels 1, 2 can be present at the top of the 15th

Between the spring 10 and the upper side 15 of the panel 1, an undercut 17 is formed, the clearance 18 is formed in the mounted state, can be absorbed from the manufacturing process in the abrasion or unremoved chips. Also, a corresponding design of the rounded front portion 11 is provided so that at the tip of the spring 10 in the assembled state, a clearance 19 is also formed, which can act as a dust bag.

The laying and locking two panels 1, 2 takes place with such a profile picture, in which the first panel 1 is attached to the spring 10 at an angle to the second panel 2 and the spring 10 is inserted into the groove 3 of the second panel. 2 Subsequently, the angled first panel 1 is pivoted about an axis parallel to the longitudinal direction of the first side edge, in this case, so that the rounded front portion 11 slides in the clockwise direction in the groove 3, until the support portion 12 on the corresponding surface of the groove 3 rests flat. In this state, as shown in Figure 2, is achieved by the undercut of the upper lip 4 and the projection 5 of paragraph 9, an effective locking in the vertical direction V and the transverse direction Q.

In order to allow not only on two opposite side edges of a panel, a locking with another panel, a profile is on a second side edge, which preferably runs at right angles to the first side edge at an angle that is formed, which is shown in the figure 3 , Here, too, corresponding profiles are formed at opposite side edges, the interaction is shown in FIG. 4

Figure 3 shows such a profile at a second side edge in cross-section, which is preferably formed on the transverse side of the panel. From the bottom 7, starting a step-shaped milled-out portion 20 is incorporated in the panel 2, which forms an inner wall 21 and an outer wall 22nd Both on the inner wall 21 and on the outer wall 22 form-fit elements 23, 24 are formed, milled out here, which engage in the form of projections in corresponding undercuts 230, 240 a corresponding recess 200 of a second panel the first In the cutout 20 a shoulder 25 is formed which protrudes toward the bottom 7, the Absatzaußenwandung is formed by the outer wall 22 and the Absatzinnenwandung 27 in the illustrated embodiment forms an upwardly widening cross-section. The underside of the heel 25 forms a head face 26 which is parallel to the top side 15 of the panel 2 and on which the panel 2 is supported in the installed state via a corresponding base surface 280 a corresponding recess 200 of a second panel the first

Alternatively to the illustrated embodiment, it is provided that the inner surface 27 is substantially parallel to the outer wall 22 so that the Absatzinnenwandung 27 to the head face 26 forms an undercut. It is also contemplated that in addition to a substantially straight configuration of the outer wall 22 α to the vertical, the outer wall 22 has a rounded shape or a vertical course at an acute angle. It is necessary that the form-locking element 24 projects beyond the end edge 28 of the top 15 to perform positive locking with the second panel first

Above the positive locking element 24 a recess 29 is formed which acts as a dust bag.

Provided that Absatzinnenwandung 27 is formed as an undercut to the head face 26, an additional locking in the vertical direction is provided, particularly when the corresponding Absatzinnenwandung 270 of the upwardly paragraph 250 is also formed as an undercut. A positive lock will then take place by a slight bending or elastic deformation of the profile, so that the form-fitting elements 23, 24 and the undercut through the Absatzinnenwandung 27 with the corresponding undercuts 230, 240 and the undercut through the Absatzinnenwandung 270 contact operatively engaged can.

The radiation emanating from the upper side 15 countersink 200 is formed such that it can accommodate the opposite profile so that the head face 26 on the one hand completely rests flat on the base surface 280, on the other hand the surfaces 15 of the two panels 1, 2 in the assembled state, as is shown in figure 4, complete in one plane and are preferably flush with one another. By the recess 29 above the positive locking element 24, a clearance 290 is provided which serves as a dust bag, the same applies to the space 300, which is formed by a corresponding positioning of the inner wall 210 of the milled 200th

As can be seen well in the figure 4, an effective locking both in the transverse direction Q as well as in the vertical direction V is given, the locking in the transverse direction is realized by a form-fitting, paragraphs 25, 250th A locking in vertical direction V takes place by the locking elements 23, 24, which positively engage in the undercuts 230, 240, wherein the form-fit elements 23, 24 at spaced walls 21, arranged 22nd In addition, the form-fitting elements 23, 24 are arranged on different vertical levels, so that a top locking point and a lower locking point is formed. The top locking point is formed by the positive-locking element 24 and the undercut 240, the lower locking point through the form-fitting element 23 and the undercut 230th

The upward section 250 is not formed over the entire length of the second side edge, but is milled over a range up to the base surface 280, which is Abfräsung toward the first side edge with a spring 10th By this cut-out or non-formation of paragraph 250, the first angled inserted panel can be further lowered down to a laying before by a pulse-like mounting movement down a final locking on the second side edge, preferably the lateral side occurs.

Between the top surface 260 of the heel 250 and the corresponding surface of the cut-out 20 is a free space in the fitted state exists, which is necessary for the interlocking element 23, the undercut 230 may engage behind, also serves this free space as a dust bag.

In addition to the formation of a panel with a groove 3 on one side edge having an upper lip 4 and a lower lip 6, can also be dispensed with a lower lip 6 by a corresponding tread pattern, provided on another way locking in the transverse direction Q and the vertical direction V is ensured. This locking is carried out so that no movement is possible in the direction of the double arrows in the locked state.

By the presented profile and the installation procedure described it is possible to easily and quick to install panels. The profile also has the advantage that on the particular design of the spring 10 and the groove 3 on the one hand a slight pivoting and locking, on the other hand a stable support and hence the possibility is given of a possible precise adjustment of the height offset. Also a secure locking of the first side edge in the vertical direction V and the transverse direction Q is given and this profile can be milling particularly well in OSB panels.

The profile configuration of the second side edge enables a particularly durable positive locking to the second side edge, preferably the transverse sides of the panels, without complicated additional equipment or special skills in the assembly would be necessary. In addition to the staggered interlocking elements, the large contact surface prevents angling and thereby easy opening of the latch on the second side edge. In addition, by positive locking, wherein a characteristic noise is generated, the user of the panels indicated that effective locking has taken place.

The profile of Figure 4a corresponds substantially to that of Figure 2, by an effective locking is given both in the transverse direction Q as well as in the vertical direction V. In the figure, 4a is further easily recognizable that in the head face 26 of the heel 25 has a groove 26 'is worked out, which extends over the entire length of the side edge. The groove 26 'serves as a dust bag as well as a weakening of the material, so that a certain spring effect in the locking of the two panels 1, 2 is present.

The profile configuration of Figures 5 to 13 at the second side edge enables a particularly durable positive locking to the second and the opposite side edge, preferably the transverse sides of the panels, without complicated additional equipment or special skills in the assembly would be necessary. In addition to the staggered form-locking elements, the large contact surface prevents angling and thereby an easy opening of the locking at the third side edge. In addition, by positive locking, wherein a characteristic noise is generated, the user of the panels indicated that effective locking has taken place.

5 shows a configuration of the second and the opposite side edge of the panels 1, 2, wherein both panels, each with a spring 51, 52 and a groove 61, 62 are formed. The springs 51, 52 and the grooves 61, 62 are arranged offset from one another such that the springs 51, 52 can engage in the respective grooves 62, 61, so as to effect a locking in the transverse direction Q in height. The panels are first locked for realizing a corresponding latch on the first side edge and then moved to one another in the transverse direction Q until the final position shown to form a butt joint is minimum 73 scored.

The joints 61, 62 are each formed by a first lip 63, 64 and the second lip 65, 66, wherein in the first panel 1, the second lip 65 protrudes over the first lip 63 in the transverse direction Q. In the second panel 2, this is reversed, the first lip 64 extends above the second lip 66 in the transverse direction Q addition, with each outstanding lips 64, 65 merge into the top and bottom edges of the springs 52, 51st

In the illustrated embodiment, the lower, second lip 65 of the first panel and the upper, first lip 64 of the second panel each have a corresponding groove-shaped, semi-circular in cross-section recess 71, 72 are milled, which form in the illustrated mounted state a channel 75 , In this channel 75 is a separate locking element 80, preferably made of plastic, inserted, so that a positive locking in the transverse direction Q is effected. By an elastic design of the locking element 80 and a slight over-dimensioning can be achieved that the panels 1, 2 are clamped to each other, so that the butt joint 73 can be minimized small always. Characterized a bias voltage between the panels 1, 2 is effected after the laying by the insertion of the locking element 80, which has a secure assignment of the panels 1, 2 to each other and a minimum surface offset to the result. Also the butt joint 73 is kept closed so that no dirt can penetrate or no moisture and softens the core of the panels. 1, 2

The recesses 71, 72 are arranged so that the channel 75 and the locking element 80 parallel to and below the butt joint 73 extends, whereby an optimal manufacturing possibility is the one hand, if a result of the almost symmetrical configuration, since a cut-out only in part within the corresponding grooves 61, must be 62, on the other hand is still enough material for receiving respective forces in the Paneelwerkstoff available.

6 shows a variant of the tread design on the second and the opposite side edge of the panels 1, 2, wherein on the first panel 1 a spring 51 and on the second panel a groove 62 is formed along the respective side edges. Both in the top of the spring 51 as well as in the first lip 64 of the groove 62 semicircular recesses are milled in cross-section, which give a cylindrical channel 75 during assembly of the two panels 1, the second In this channel 75 can be a tailored to the appropriate length, extruded plastic tube to be inserted as a locking element 80, so that via the locking element 80 takes place, a locking in the transverse direction Q. The groove 62 and spring 51 lock the panels 1, 2 in the vertical direction.

7 shows a variant of Figure 6 is shown, in which the corresponding recesses 71, 72 on the underside of the spring 51 and the second lip 66 of the groove are formed 62nd The recesses 71, 72 are formed corresponding to each other, so that a hexagonal locking element 80 is formed in the corresponding channel formed 75th The channel 75 is shown in the Figure 9, the corresponding configuration of the recesses 71, 72 and the groove 62 and the spring 51 according to Figure 6 are shown in FIG. 8

The laying of the panels 1, 2 with a profile embodiment according to the figures 5 to 9 takes place at the second and opposite these lateral edges, is by first loaded and pivoted on the first side edge of a panel in one of these opposite side edge until the it to the second and opposite side edges are to be joined panels in a plane. Then the panels along the first side edge to be displaced toward each other until the panels abut one another and form a butt joint minimal 73rd At the same time, a channel 75 is formed by the recesses 71, 72, into which a correspondingly shaped locking element 80 is inserted. In this manner an effective locking in the vertical direction as well as in the transverse direction Q is effected.

After removal of the locking element 80 can be made without destroying the profiles disassembly of the panels, so that any number can be carried out at the laying operations. Such a design of the lock is particularly suitable for items on the stand structure.

In the figures 12 and 13, further embodiments of the recesses 71, 72 are shown, which can also be moved with the method described above. In Figure 12, the channel 75 has a triangular cross-sectional shape, with the upper recess 72 has the cross section of a isosceles trapezoid, and the lower recess 71 in the spring 51 has a triangular shape. The locking element 80 is formed V-shaped, and may cause a corresponding bias voltage by an elastic component of force in the transverse direction Q, so that the panels 1, 2 are moved towards each other.

In the figure, 13 are each two in cross section triangular cut-outs 71, 72 milled into the spring 51 and groove 62, and the locking element 80 has an X-shaped cross section. By the insertion of the locking elements 80 according to the figures 12 and 13, the legs are pressed together and also hold the butt joint 72 close together and thus sealed against dirt and moisture. In order to facilitate the insertion, the locking elements 80 are formed tapered at their ends.

In the figures 10 and 11 the groove 62 and the spring 51 are formed such that a locking in engagement of groove 62 and groove 51 in the transverse direction Q takes place. On the vertical edges of the groove 62 and spring 51 corresponding recesses are milled, in which a locking element 80 can be inserted. In the figure 10, these recesses are formed such that a rectangular locking element 80 is inserted.

In the figure 11 is a variant of Figure 10 is shown in which the channel 75 is formed in a circular shape. Such a configuration of the second and the opposite side edge of the panels 1, 2 an effective locking in the transverse direction Q occurs already by the insertion of the spring 51 into the groove 62. The illustrated geometry a very high bearing surface is provided, so that forces well received and can be derived, also, the recesses 71, 72 relatively easy to manufacture, especially mill out, and both side edges only needed a tool. Furthermore, an appropriate design of the locking elements 80, a pressure is built up which moves the panels 1, 2 to each other and braced. The secure locking in the vertical direction V is also guaranteed.

The locking elements 80 and the tongues and grooves may also have different geometries, wherein the one movement component is eliminated by that the locking element or the locking elements, which is not blocked by the tongue and groove connection. Advantageously, the locking member to each other causes a clamping of the panels, so that the butt joint is minimized. The channel for the insertion of the locking element may extend over the entire joint width or groove width, only corresponding positive-locking elements must be present to effect a lock.

Figure 14 shows a floor panel 1, which consists of a medium-density or high-density fiberboard (MDF or HDF). At the top 15, the floor panel 1 is provided with a decorative layer 16, which may be formed for example by a wood grain containing paper layer, which is coated with a serving as a wear protective resin layer. At the bottom 7 a sound-insulating can be glued to improve the footfall sound properties of the installed floor panels. As an alternative to the use of HDF or MDF board, the panel 1 of an OSB Warkstoff (oriented strand board) are manufactured, can be omitted here, a decorative layer 16th At a first side edge, preferably on the longitudinal side of the panel 1, the panel 1 is provided with a spring 10 and on the opposite side edge with a recess the third

The recess 3 and the spring 10 extend over the full length of the side edges. At the spring 10 an outwardly projecting, bumpered a tip nose is provided, which merges into a front portion having a curved contour. To this front portion of the spring 10, which forms an undercut 13, a bearing support 14 connects, which is inclined at an angle μ to the upper side panels 15 of the first At the bearing support 14 is a substantially vertically oriented wall 111 connects.

The undercut 13 causes, as shown in Figure 15, a locking in the transverse direction Q, in which a positive locking with a corresponding section 9 of the recess 3 is formed. In the assembled state, the spring 10 engages in a space formed by an upper lip 4 of the recess 3 undercut, so that the top surface 120 abuts the spring 10 on an underside 40 of the upper lip and a locking in vertical direction along the first and to the opposite side edge is carried out , The shoulder 9 is formed at a lower lip 6 of the recess 3 and closes it, wherein on the top of paragraph 9, an inclined surface section 5 is formed, which serves as a support for the bearing support fourteenth The conclusion of the panel forms a substantially vertically extending front paragraph 81, which passes through a curve in the top paragraph. 5

By paragraph top 5 and the bearing support 14, a relatively large contact surface is provided on the two panels 1, 2 are each other in the connected state. The slope at the angle<i>μ</i> means that when a vertical load a component of movement in the transverse direction Q toward generated, so that in the locked state reduces, under the influence of the above component force of the gap between the two panels 1, 2 and the original locking by inserting and pivoting in a first panel can be done in a second panel without a bias.

The shoulder 9 is formed such that at the heel front side 81 is formed a recess 311 into which, as can be seen in the Figure 15, a corresponding projection 300 engages the wall 111 of the first side edge. The recess 311 forms an undercut so that a locking is formed in the vertical direction V by a positive engagement of the projection 300 into the recess 311th Above the rounded connection of the top paragraph 5 to the sales front 81, a clearance 180 is formed in the mounted state, which allows a certain movement of the panel 1 towards the second panel 2 with a vertical load. Also can earn 180 chips in this space. The underside of the projection 300 rests on a corresponding bevel of the recess 311, so that a precise angular assignment of the panels 1, 2 is ensured. In addition to the positive locking on the top side 120 of the spring 10 is determined by the design of the interlocking elements 300, 311 provided a second locking point in the vertical direction, so that an increased safety against undesired pivoting back of the first panel 1, is present in the counterclockwise direction, prevents

Between the spring 10 and the upper side 15 of the panel 1, an undercut 17 is formed, which adjoins one to the upper side 15 extending at a right angle edge. The undercut 17 forms in the mounted state of a free space can be taken from the production process in the abrasion or unremoved chips. Also, a corresponding design of the rounded front portion of the spring 10 is provided so that the spring 10 also forms a gap 19 in the assembled state, which can act as a dust bag and movement space.

The laying and locking two panels 1, 2 with such a profile image is made by the first panel 1 angularly attached to the second panel 2 with the spring 10 and the spring 10 is inserted into the cavity 3 of the second panel. 2 Subsequently, the angled first panel 1 is pivoted about an axis parallel to the longitudinal direction of the first side edge, in this case, so that the provided with a round contour front portion of the spring 10 slides along in the clockwise direction in the correspondingly shaped recess 3, until the upper surface 120 of the spring 10 abuts the corresponded bottom 40 of the upper lip. 4 In this state, as shown in Figure 15, is achieved by the undercut of the upper lip 4 and paragraph 9 an effective locking in the vertical direction V and in the transverse direction Q.

Figure 16 shows a floor panel 1 according to a variation in the profile design of the first side edge, wherein the panel with a spring 10 and on the opposite side provided with a correspondingly formed groove 3rd The groove 3 and the spring 10 extend over the full length of the side edge. On the spring 10 an outwardly projecting, rounded-off nose is provided on the underside 12 of the spring 10 joins with a rounded contour. The radius of this contour is constant over at least 90 degrees extent and thus enables a simple sliding mechanism for the spring 10 in the groove 3rd

In the assembled state, the spring 10 engages in a space formed by the upper lip 4 of the groove 3 undercut, so that along the first edge there is a locking in the vertical direction V. The locking in the transverse direction Q is performed by the form-fitting contact of the underside 12 of the spring 10 against a shoulder 9, which closes the groove 3rd On top of the paragraph 9 a horizontally extending surface is formed, which serves as a support for a bearing support 14th

Figures 17 and 18 show a floor panel 1 with an alternative profile design. Again, the panel 1 is provided with a spring 10 and on the opposite side edge with a recess the third The recess 3 and the spring 10 extend over the full length of the opposite side edges. At the spring 10 an outwardly projecting, bumpered a vertical front tip 101 is provided with the spring 10 has an upwardly rising, wedge-shaped contour. From the tip 101 of the spring 10, a horizontal bottom 12 to which an undercut 13 connects, which is formed by an inclined linear wall 130 which extends at an angle β inclined to the top 15 extends. An adjoining to the wall 130 support area 14 is parallel to the top 15 of the panels 1, and provides a convenient support surface for accommodating vertical forces. The support area 14 is bounded by a paneelseitig easily inclined from the vertical wall 111, the angle λ is an acute angle.

The undercut 13 causes, as shown in Figure 19, a locking in the transverse direction Q, in which a positive locking with a corresponding section 9 of the recess 3 is formed. In the assembled state, the spring 10 engages in a space formed by an upper lip 4 of the recess 3 undercut so that a straight line, in this case inclined top surface 120 of the spring 10 bears against a bottom 40 of the upper lip 4 and a locking in vertical direction V along the first and to the opposite side edge takes place. The shoulder 9 is provided at a lower lip 6 having a horizontal upper surface 60 formed of the recess 3 and closes it, wherein on the upper side of paragraph 9 a horizontal section surface is formed which serves as a support for the bearing support fourteenth The conclusion of the panel forms an inclined extending sales front 81 which merges via a rounding in the sales top.

By paragraph top and the bearing support 14, a relatively large contact surface is provided on the two panels 1, 2 are each other in the connected state. The shoulder 9 is formed such that at the heel front side 81 is formed a recess 311 into which, as can be seen in the Figure 19, a corresponding projection 300 engages the wall 111 of the first side edge. The recess 311 forms an undercut, so that a locking in the vertical direction V is effected by a positive engagement of the projection 300 into the recess 311th

The top of the projection 300 rests on a corresponding bevel of the recess 311, so that a precise angular assignment of the panels 1, 2 is ensured. In addition to the positive locking on the top side 120 of the spring 10 is determined by the design of the interlocking elements 300, 311 provided a second locking point in the vertical direction, so that an increased safety against undesired pivoting back of the first panel 1, in this case counter-clockwise, is prevented. The locking effect is achieved by the rectilinear design of the spring top 120, the bottom 40 of the upper lip 4, the upper surface 60 of the lip 6 and the underside 12 of the spring 10 increases, since the rectilinear configuration impedes pivoting and the profile due to the elastic restoring force of the panels in position is maintained. Furthermore, 101 of the spring 10 and the groove bottom 50 of the recess 3 is another definition caused by the parallel formation of the tip.