DE20321446U1 - Floor panel, of fiberboard materials, has structured stepped edges for neighboring panels to lock together in a positive fit in the lateral and vertical directions - Google Patents

Abstract

The floor panel (2), of high density (HDF) or medium density (MDF) fiberboard or oriented strand board (OSB), can have a patterning layer on its upper surface (15), and a lower surface (7) against the ground. The edges are structured so that at least two panels can be locked together in the lateral (Q) and vertical (V) directions. The edges are shaped with positive fit structures (23,24) at one side edge with spaced vertical walls (21,22), displaced laterally and vertically to lock neighboring panels in the vertical direction. At the other side, a step (20) is cut out from the under side, with an inner (21) and an outer (22) wall to shape the positive fit structures. At the opposite edge, a projecting step (200) is cut out with an inner (210) and an outer (220) wall, in a matching shape to the positive fit structures.

Description

Out WO 01/75247 A1 is a floor panel known that at a first side edge connecting means for locking in the transverse and vertical directions. These locking means are on the long side arranged the panel and cause the lock by a Inserting and pivoting the connecting means in a corresponding Recess of a second panel. The transverse side of the panel has two snap hooks, which are in corresponding undercuts an adjacent panel during installation and the vertical movement between the laid panels. The two snap hooks lie in the vertical direction with each other.

adversely on such a profile is the fact that such a tread design ensures no secure locking of the panels with each other, because the snap hooks arranged one below the other during the laying movement pressed and with a resilient substrate, such as carpet, at a vigorous Occurs the transverse side pops out of the lock. This is also due to that the panel provided with the snap hooks relative to the Corresponding panel slightly angled on appearance, so that the panel is virtually unscrewed.

The WO 01/02669 A1 describes a panel and a fastening system for panels, to lay on a substrate and their narrow sides with Holding profiles are provided, wherein the retaining profiles of the opposite Fit together pages such that on the free sides of a laid panel further panels are fastened, wherein form-locking elements are formed are through which the panels by a rotating joining movement can be fastened together. To panels even on an irregular surface to be able to relocate are the form-locking elements designed so that they are in the installed state form a joint joint of two panels and that the shaping so is created that created a freedom of movement for the joint joint is. This makes it possible that two interconnected panels at the junction can be bent upwards.

The DE 201 21 196 U1 describes a building panel, in particular a floor panel, for connecting and locking a plurality of building panels with each other, wherein the mutually opposite side edges mutually corresponding groove and tongue. The tongue and groove in each case have corresponding recesses, so that they allow each other to be aligned with one another to insert the spring into the groove. To lock the building panels they are shifted from each other in the longitudinal extension of the tongue and groove.

The DE 202 03 311 U1 describes a panel element for forming a floor, wall or ceiling covering of a plurality of similar, interconnected panel elements. On one side edge, a rib extending in the direction of the underside and a correspondingly shaped retaining channel are formed on the other side edge. The rib and the retaining channel have a defined first contact point, which defines two adjacent panel elements in a direction parallel to the panel surface. Furthermore, a second contact zone is provided which defines two adjacent panel elements in a direction perpendicular to the panel surface. The second contact point is arranged with respect to the first contact point such that, as part of the movement of the rib into the retaining channel, engagement occurs in the region of the first contact point after the start of the engagement.

task The present invention is to provide a panel, with a simple installation possible is and that is a secure locking both in the transverse direction as also ensured in the vertical direction.

According to the invention Task through a floor panel solved with the features of claim 1.

advantageous Embodiments and developments of the invention are listed in the dependent claims.

According to the invention, a spring corresponding to the spring is formed on the first side edge in the longitudinal direction of the side edge extending spring and on the opposite side edge, wherein the spring is designed such that a lock by inserting into the recess of the second panel and Swiveling takes place about an axis parallel to the first side edge. The formation of the connecting elements on the first side edge as a so-called pivoting profile allows easy and safe installation and effective locking in the vertical and transverse directions. By dispensing with an elastic deformation during installation by pivoting the material structure of the panels is maintained and a good strength of the connection is ensured. Overall, a lock on such a Einschwenkprofil be performed stable with the same effort during installation. The formation of the recess as a groove with an upper lip and a lower lip ensures that a reliable assignment of the panels to be laid to each other, so that a minimum height offset of the panels can be achieved, which is a quality feature in floor panels. The spring is latched in the transverse direction in the groove, wherein the lower front portion of the spring may be rounded to allow easy pivoting into the corresponding, formed groove. By providing corresponding interlocking elements on a front shoulder and a subsequent to an undercut and a support area wall is achieved that additional locking in the vertical direction is effected when these interlocking elements engage in the assembled state. A second locking point in the vertical direction makes it possible for an effective connection to be successfully carried out already by the insertion and pivoting about a first side edge. The spring and the groove itself require no training such that a bias between the panels is present, so that the profile is less loaded during installation. This additionally ensures that the laying process is simplified as such.

The Spring is rounded at the bottom to allow easy swiveling to allow in the groove.

In a development of the invention, it is provided that the bottom the spring is a continuous curve Contour, wherein the radius of curvature the contour of the underside of the spring over at least 90 ° substantially remains constant, allowing a uniform pivoting movement and a simple sliding on the corresponding recess done can.

In a development, it is provided that the positive connection element on the wall a projection and on the front of the paragraph a corresponding Recess is generated by a corresponding cutout were.

to It is locking in the vertical direction on the first side edge provided that a top of the spring in the assembled state abuts on an underside of the upper lip to another positive locking to effect.

The parallel formation of the bottom of the spring and the top the lower lip to the top of the panels allows a large-area edition one panel on the other panels, leaving a small one surface pressure in the tongue and groove connection prevails and a very low height offset the panels can be realized to each other.

The Forming the recess as a groove with an upper lip and a Ensures lower lip, that a secure assignment of the panels to be laid each other done so that a minimal height offset the panels can be achieved, which is a quality feature in floor panels is. The spring is latched in the transverse direction in the recess, wherein the spring and the recess in cross-section a wedge-shaped contour have an easy insertion to enable and to achieve a good self-centering of the spring in the groove.

Around any existing abrasion when laying the first side edges can arise, without this the panels apart suppressed, the spring and the recess are designed in such a way that mounted state between the front of the spring and the adjoining the upper lip Area of the recess is a gap, in which the Abrasion can collect and the movement space of the two panels serves each other. The gap tapers towards the front heel of the lower lip to make a smooth transition between the areas of full area Plant and clearance to move and accumulate abrasion. Perhaps Existing abrasion can also be absorbed in a free space Pass through between the spring and the top of the panels an undercut is formed.

Around to achieve a transversely effective locking of two panels, is in the rear region of the spring is a substantially flat surface in one Angle to the horizontal, preferably 45 °, formed. This surface interacts with a corresponding projection in the groove of the adjacent Panels and causes a locking in the transverse direction, allowing a Slipping out perpendicular to the first side edge effectively prevented becomes.

Around the bearing surface continues to enlarge, closes to the spring a support area for supporting on a groove of the final second panels Heel, which increases the effective contact surface and allows a uniform distribution of force. The support area runs essentially horizontal, but can effect a horizontal movement have a slight inclination to the horizontal during vertical loading.

Around any existing abrasion when laying the first side edges may arise, without this having a gap between The panels produced between the spring and the top of the Panels provided an undercut, which in the laid state a Cavity forms, in which abrasion can accumulate.

By the spacing of form-closure Elements in the transverse and vertical directions are two spatially separate locking points on the second side edge, in particular the transverse side, created, whereby a safer locking of each other laid and laid panels is guaranteed. The arrangement of the positive locking elements on two different walls increases the stability of the entire connection and prevents by sliding over a plurality of successively arranged interlocking elements a deformation of the interlocking elements and ensures the effectiveness of the lock.

The second side edge has in one embodiment of the invention from the bottom outgoing, step-shaped cutout with an inner wall and an outer wall on. On these walls are each extending in a transverse direction Formed positive-locking element, preferably milled, the in corresponding undercuts one from the top outgoing, stepped countersink engage the connecting second panel. The one from the top outgoing, stepped countersink also has an inner and an outer wall on which the corresponding undercuts are formed so that it to a form-fitting Locking come in the vertical direction at the second side edge can.

The from the bottom outgoing, step-shaped cutout points in the direction the bottom protruding paragraph, which is a substantially horizontally aligned head surface forms, this paragraph a in the transverse direction, perpendicular to the second side edge provides effective locking. The essentially horizontally oriented head surface serves to set the minimum Height offset and represents a relatively large one bearing surface for the introduction of vertically acting forces.

A Continuing provides that in the head area of the paragraph in the longitudinal extension of the second side edge aligned groove is incorporated. Through this groove a dust bag is created in the trapped when laying abrasion or uncleanliness included can be without negatively affecting installation accuracy Has. The groove also causes a slight spring effect, so that the latch on the second side edge under a certain bias is.

The Walls of the heel are at an acute angle to the head face aligned, which is either the easy insertion into a corresponding one Recess of the corresponding cutout of the second panel or but when forming an undercut to the head area one additional locking effect entails.

It has been found that a transverse extension of the head surface in one Range of 2 mm to 6 mm very good durability and a very good Locking effect provides, preferably wherein the head face the 0.25 to 0.4 times the total transverse extent of the step-shaped cut-out.

A particularly effective and easy locking on the second side edge is given when a positive locking element on the trailing edge of Top protrudes horizontally. It may be appropriate that between the top and the excellent interlocking element a recess is arranged, which is the end edge of the panel undercuts, possibly existing abrasion or deforming material of the panel, so that as accurate as possible laying with minimal gap width possible is because no abraded or deformed material has a barrier effect exercises.

The the second side edge opposite Side edge of the panel has an outgoing from the top, stepped Milling with a projecting towards the top paragraph. This Paragraph also has a substantially horizontally oriented head face on, wherein in the lower part of the Absatzaußenwandung an undercut is formed, with the corresponding positive-locking element the inner wall of the male side edge corresponds. The arrangement of the recess in the lower region of the Absatzaußenwandung elevated the effectiveness of the lock.

A Continuing training provides that between the Absatzinnenwandung and the inner wall of the cutout a horizontal base surface is formed, which is designed such that when laid Panels the head area resting on the base surface and the tops of the panels are in one plane, which means that a minimum or no height offset between the panels. Through the interaction of horizontal base areas and head areas is a particularly accurate assignment and adjustment of the height offset possible, Likewise, the Abwinkelneigung adjacent panels is reduced, which increases the strength of the lock.

The heel inside of the cutout emanating from the top extends parallel or at a shallower angle than the corresponding heel of the in-laid paragraph heel to either cause a precise investment or a component of movement for the two panels in the transverse direction to provide.

By the formation of an undercut through the Absatzinnenwandung to the head area the corresponding paragraph is an additional locking effect achieved.

Around to bring about a particularly simple installation is the one above above paragraph of the outgoing from the top of cutout not over the whole length the second side edge is formed, but is in particular at an end portion of the second side edge facing toward directed with a spring provided first side edge, until on the base surface milled or not trained. By removal or non-education of the protruding paragraph becomes the pivoting about the axis facilitated parallel to the first side edge, so that a blocking effect by the interlocking elements takes place only when the at the second and the one opposite Side edge of adjacent panels at an acute angle lie to each other. This means that only a short distance returned in vertical direction must be to the panels on the second and this opposite side edge Completely to lock.

A advantageous embodiment of the invention provides that the floor panel at least partially made of a HDF or MDF material becomes. Alternatively, the entire floor panel of an OSB material be prepared. By using an OSB material is a natural wood look, as well as a textured surface achieved. Likewise, the top of the panel may have no decorative layer, but be made of a wood material. The structure of the Wood-based material can make a decorative layer superfluous, so that as the top For example, a layer of wood, wood fibers or wood chips applied can be. Also, the panel can be made completely or partially from one Plastic be formed, wherein preferably the region of the connecting means with spring and recess (groove) made of a plastic is.

Also the embodiment with a separate locking element on the second side edge can with the embodiments of the first side edge as described above.

following Be exemplary embodiments of Invention with reference to the attached Figures are described. Same reference numerals in different Figures denote the same objects. Show it:

1 A cross-sectional view of a floor panel having a first side edge;

2 - Two interconnected panels at the junction in the partial cross section;

3 - A floor panel in cross-sectional view with a second side edge;

4 - Two interconnected panels at a second connection point in the partial cross section;

4a - a variant to 4 ;

5 - An alternative embodiment of the second and corresponding, opposite side edge in the partial cross section;

6 to 13 - Variants of the configuration of the tongue and groove and inserted locking elements;

14 to 16 - Variants of the profile at the first side edge in cross section; such as

17 to 19 - Cross-sectional views of a panel with an alternative profile design.

1 shows a not covered by the invention floor panel 1 , which consists of a medium density or high density fiberboard (MDF or HDF). At the top 15 is the floor panel 1 with a decorative layer 16 provided, which may be formed in example by a wood grain having a paper layer, which is coated with a serving as wear protection resin layer. On the bottom 7 can be a sound insulation layer 8th glued on to improve the footfall sound properties of laid floor panels. As an alternative to using a HDF or MDF board, the panel can 1 be made of an OSB material (oriented strands board). At a first side edge, preferably at the longitudinal side of the panel 1 , is the panel 1 with a spring 10 and on the opposite side with a groove 3 Mistake. The groove 3 and the spring 10 extend over the full length of the side edge. At the spring 10 is an outwardly projecting, rounded nose provided in a rounded front area 11 passes. At this front area 11 closes at the bottom of the spring 10 a flattened, in the installed state in the substantially horizontal extending support area 12 on, over which the panel 1 on a corresponding surface of the groove 3 a second panel 2 , as in 2 shown, supported. The profile of 2 is not included in the invention.

To the support area 12 closes an oblique surface 13 with a corresponding lead 5 the corresponding groove 3 of the second panel 2 a lock in the transverse direction Q causes. When assembled, the spring engages 10 in one through an upper lip 4 the groove 3 formed undercut, so that along the first side edge also takes place a lock in the vertical direction V. The lead 5 is through a the groove 3 final paragraph 9 formed, on its upper side a horizontally extending surface is formed. This surface serves as a support for a support area 14 , which adjoins the sloping surface 13 at the groove 10 followed. Through the support area 12 and the support area 14 a relatively large contact surface is provided on which the two panels 1 . 2 in the connected state to each other. The bevelled surface 13 causes, in conjunction with the projection 5 in the case of a force component acting from above, a component of movement in the transverse direction toward one another, so that in the locked state in the case of a force component acting from above, the gap between the two panels 1 . 2 is reduced.

Paragraph 9 is formed so that in the transverse direction Q no contact between a vertically extending surface of the shoulder and an opposite, also vertically extending surface of the first side edge exists. So there is a free space 30 before, so that here no unwanted blocking effect and thus no gap between the two panels 1 . 2 at the top 15 may be present.

Between the spring 10 and the top 15 of the panel 1 is an undercut 17 formed, which in the assembled state, a free space 18 is formed, can be absorbed in the abrasion or not removed chips from the manufacturing process. Likewise, a corresponding design of the rounded front area 11 provided so that at the top of the spring 10 in the assembled state also a free space 19 is formed, which can act as a dust bag.

Laying and locking two panels 1 . 2 done with such a profile picture in which the first panel 1 with the spring 10 angled to the second panel 2 is set and the spring 10 in the groove 3 of the second panel 2 is inserted. Subsequently, the angled first panel 1 pivoted about an axis parallel to the longitudinal direction of the first side edge, in this case in the clockwise direction, so that the rounded front area 11 in the groove 3 slides along until the support area 12 on the corresponding surface of the groove 3 lying flat. In this state, as in the 2 is shown by the undercut of the upper lip 4 and the lead 5 of the paragraph 9 achieved an effective locking in the vertical direction V and transverse direction Q.

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

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 is a stepped cut-out 20 in the panel 2 incorporated an inner wall 21 and an outer wall 22 formed. Both on the inner wall 21 as well as on the outer wall 22 are positive locking elements 23 . 24 formed, milled out here, in the form of projections in corresponding undercuts 230 . 240 a corresponding recess 200 a second panel 1 intervention. In the cutout 20 is a paragraph 25 trained towards the bottom 7 protruding, wherein the Absatzaußenwandung of the outer wall 22 is formed and the paragraph inner wall 27 formed in the illustrated embodiment, an upwardly flared cross-section. The bottom of the heel 25 forms a head surface 26 that are parallel to the top 15 of the panel 2 runs and on which the panel 2 in the mounted state via a corresponding base surface 280 a corresponding recess 200 a second panel 1 supported.

As an alternative to the illustrated embodiment, it is provided that the inner surface 27 substantially parallel to the outer wall 22 runs, leaving the heel wall 27 to the head area 26 forms an undercut. It is also envisaged that in addition to a substantial straight formation of the outer wall 22 at an acute angle α to the vertical, the outer wall 22 has a rounded shape or a vertical course. It is necessary that the positive locking element 24 over the trailing edge 28 the top 15 protrudes to a positive locking with the second panel 1 perform.

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

Unless the paragraph inside 27 as an undercut to the head area 26 is formed, an additional locking in the vertical direction is provided, in particular if the corresponding paragraph inner wall 270 of the paragraph above 250 is also designed as an undercut. A positive locking then takes place by a slight bending or an elastic deformation of the profiles instead, so that the positive-locking elements 23 . 24 and the undercut through the heel inside 27 with the corresponding undercuts 230 . 240 and the undercut through the Absatzinnenwandung 270 can effectively engage.

The one from the top 15 outgoing cutout 200 is formed such that it can receive the opposite profile, so that the head surface 26 on the one hand completely flat on the base surface 280 rests, on the other hand, the surfaces 15 the two panels 1 . 2 in the assembled state, as in the 4 is shown, complete in a plane and lie as flush as possible. Through the recess 29 above the positive-locking element 24 becomes a free space 290 created, which serves as a dust bag, the same applies to the free space 300 by a corresponding positioning of the inner wall 210 the cutout 200 is formed.

Like in the 4 can be clearly seen, an effective locking is given both in the transverse direction Q and in the vertical direction V, wherein the locking in the transverse direction positively by the paragraphs 25 . 250 is realized. A locking in the vertical direction V is effected by the locking elements 23 . 24 , the form-fitting in the undercuts 230 . 240 engage, wherein the positive locking elements 23 . 24 at spaced apart walls 21 . 22 are arranged. In addition, the positive-locking elements 23 . 24 arranged at different vertical levels, so that an upper locking point and a lower locking point is formed. The upper locking point is determined by the positive locking element 24 and the undercut 240 , the lower locking point through the positive locking element 23 and the undercut 230 educated.

The upwardly directed paragraph 250 is not formed over the entire length of the second side edge, but is over an area except for the base surface 280 milled off, with this cutout towards the first side edge with a spring 10 lies. Through this cut-out or non-training of the paragraph 250 can be lowered further at a laying the first angularly inserted panel before by a pulse-like assembly movement downwards a final locking on the second side edge, preferably the transverse side takes place.

Between the head area 260 of the paragraph 250 and the corresponding area of the cutout 20 is in the assembled state, a free space available, which is necessary so that the positive locking element 23 the undercut 230 can engage. Also, this space serves as a dust bag.

In addition to the formation of a panel with a groove 3 on one side edge, which is an upper lip 4 and a lower lip 6 can, by a corresponding profile design also on a lower lip 6 be waived, if in another way a lock in the transverse direction Q and vertical direction V is ensured. This locking is done so that no movement in the direction of the double arrows in the locked state is possible.

Due to the presented profile and the laying method described, it is possible to lay panels easily and quickly. The profile has the further advantage that on the special design of the spring 10 and the groove 3 on the one hand a slight swinging and locking, on the other hand, a stable support and thus the possibility of the most accurate adjustment of the height offset is given. Also, a secure locking of the first side edges in the vertical direction V and transverse direction Q is given and this profile can be particularly well milled in OSB panels.

The Profile design on the second side edge allows a particularly durable form-fitting Locking on the second side edges, preferably the transverse sides the panels, without elaborate additional equipment or special Skills in the assembly would be necessary. In addition to the staggered arranged Interlocking elements prevents the big one bearing surface an angulation and thus easy opening of the lock on the second side edge. About that in addition, by the positive Locking, which produces a characteristic noise, the user of the Panels indicated that an effective lock occurred Has.

The profile of 4a is essentially the same as the 2 , is given by the effective locking in both the transverse direction Q and in the vertical direction V. In the 4a is still good to see that in the head area 26 of the paragraph 25 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 material weakening, so that a certain spring effect in the locking of the two panels 1 . 2 is present.

The profile design of the 5 to 13 on the second side edge allows a particularly durable positive lock on the second and opposite side edge, preferably the transverse sides of the panels, without complex additional equipment or special skills would be necessary during assembly. In addition to the staggered Formschlussele The large contact surface prevents tilting and thus easy opening of the lock on the third side edge. In addition, the keyed interlock, which produces a characteristic noise, indicates to the user of the panels that an effective interlock has occurred.

5 shows an embodiment of the second and opposite side edge of the panels 1 . 2 , both panels, each with a spring 51 . 52 and a groove 61 . 62 are formed. The feathers 51 . 52 and the grooves 61 . 62 are staggered in height to each other arranged such that the springs 51 . 52 into the corresponding grooves 62 . 61 can engage so as to effect a locking in the transverse direction Q. The panels are first locked to the realization of a corresponding lock on the first side edges and then moved in the transverse direction Q to each other until the end position shown to form a minimum butt joint 73 achieved.

The joint 61 . 62 are each a first lip 63 . 64 and a second lip each 65 . 66 formed, wherein at the first panel 1 the second lip 65 over the first lip 63 protrudes in the transverse direction Q. At the second panel 2 this is the other way around, the first lip 64 protrudes over the second lip 66 in the transverse direction Q addition, with the depending Weil outstanding lips 64 . 65 in the bottom or top of the springs 52 . 51 pass.

In the illustrated embodiment is in the lower, second lip 65 of the first panel as well as the upper, first lip 64 of the second panel each have a corresponding channel-shaped, semicircular in cross section recess 71 . 72 milled in the illustrated, assembled state a channel 75 form. 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 configuration of the locking element 80 as well as a slight oversizing can be achieved that the panels 1 . 2 be clamped to each other, so that the butt joint 73 always minimally small can be kept. This will create a preload between the panels 1 . 2 after laying by the insertion of the locking element 80 causes what a secure assignment of the panels 1 . 2 to each other and a minimum surface offset has the consequence. Also, the butt joint 73 kept closed so that no dirt or moisture can penetrate and the core of the panels 1 . 2 softens.

The recesses 71 . 72 are arranged so that the channel 75 or the locking element 80 parallel and below the butt joint 73 runs, which on the one hand an optimal manufacturing possibility due to the almost symmetrical design is given as a cutout only partially within the corresponding grooves 61 . 62 must be done, on the other hand, enough material for receiving corresponding forces in the panel material is still present.

The 6 shows a variant of the profile design on the second and opposite side edge of the panels 1 . 2 , being on the first panel 1 a feather 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 the first lip 64 the groove 62 are cut in cross-section semicircular recesses, which when joining the two panels 1 . 2 a cylindrical channel 75 result. In this channel 75 can be tailored to the appropriate length, extruded plastic tube as a locking element 80 be pushed in, so over the locking element 80 a lock in the transverse direction Q takes place. The groove 62 and spring 51 lock the panels 1 . 2 in the vertical direction.

In the 7 is a variant of 6 shown in which the corresponding recesses 71 . 72 at the bottom of the spring 51 or the second lip 66 the groove 62 are formed. The recesses 71 . 72 are formed corresponding to each other, so that a hexagonal locking element 80 in the appropriately trained channel 75 is trained. The channel 75 is in the 9 shown, the corresponding configuration of the recesses 71 . 72 as well as the groove 62 and the spring 51 according to 6 are in the 8th shown.

Laying the panels 1 . 2 with a profile design according to the 5 to 9 takes place at the second and these opposite side edges by first inserted and pivoted at the first side edge of a panel in one of these opposite side edge until the panels to be joined at the second and these opposite side edges lie in a plane. Subsequently, the panels along the first side edge are moved towards each other until the panels abut each other and a minimal butt joint 73 form. At the same time through the recesses 71 . 72 a channel 75 formed, in which a correspondingly shaped locking element 80 is inserted. In this way, an effective locking in the vertical direction and in the transverse direction Q is effected.

After removing the locking element 80 can disassemble without destroying the profiles the panels are made so that any number of laying operations can be performed. Such an embodiment of the lock is particularly suitable for elements of exhibition construction.

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

In the 13 are each two in cross-section triangular cutouts 71 . 72 in the spring 51 or groove 62 milled in, and the locking element 80 has an X-shaped cross-section. By inserting the locking elements 80 according to the 12 and 13 The legs are pressed together and also hold the butt joint 72 close together and thus close to dirt and moisture. To facilitate insertion, the locking elements 80 formed tapered at their ends.

In the 10 and 11 are the groove 62 and the spring 51 formed such that a locking in meshing of groove 62 and spring 51 takes place in the transverse direction Q. At 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 10 These recesses are designed such that a rectangular locking element 80 is inserted.

In the 11 is a variant of 10 shown at the channel 75 is formed in a circular shape. By such a configuration of the second and this opposite side edge of the panels 1 . 2 an effective locking in the transverse direction Q already takes place by the insertion of the spring 51 in the groove 62 , Due to the illustrated geometry, a very high contact surface is provided, so that forces can be well absorbed and discharged. Also are the recesses 71 . 72 relatively easy to manufacture, in particular auszufräsen, and for both side edges only one tool is needed. Furthermore, with appropriate design of the locking elements 80 a pressure built up the panels 1 . 2 moved towards each other and braced. The secure locking in the vertical direction V is also ensured.

The locking elements 80 and the grooves and springs may also have different geometries, wherein the locking component or the locking elements, that component of movement is not blocked, which is not blocked by the tongue and groove connection. Advantageously, the locking element causes a tension of the panels to each other, so that the butt joint is minimized. The channel for inserting the locking element can extend over the entire joint width or groove width, only corresponding interlocking elements must be present in order to effect a lock.

14 shows a floor panel 1 , which consists of a medium density or high density fiberboard (MDF or HDF). At the top 15 is the floor panel 1 with a decorative layer 16 provided, for example, may be formed by a wood grain having paper layer, which is coated with a serving as a wear protection resin layer. On the bottom 7 a Schalldämmlage may be glued to improve the footfall sound properties of laid floor panels. As an alternative to using a HDF or MDF board, the panel can 1 are made of an OSB material (oriented strands board), here on a decorative layer 16 can be waived. At a first side edge, preferably at the longitudinal side of the panel 1 , is the panel 1 with a spring 10 and on the opposite side edge with a recess 3 Mistake.

The recess 3 and the spring 10 extend over the full length of the side edges. At the spring 10 an outwardly projecting tip is provided which merges into a front portion having an arcuate contour. At this front area of the spring 10 that has an undercut 13 forms a support area closes 14 at an angle μ to the top 15 the panels 1 inclined is formed. To the support area 14 closes a substantially vertically aligned wall 111 at.

The undercut 13 causes, as in 15 shown, a lock in the transverse direction Q, in which a positive locking with a corresponding paragraph 9 the recess 3 will be produced. When assembled, the spring engages 10 in one through an upper lip 4 the recess 3 formed undercut, leaving the top 120 the feather 10 at a bottom 40 the upper lip rests and a locking in the vertical direction along the first and the opposite side edge takes place. Paragraph 9 is on a lower lip 6 the recess 3 trained and completes this, taking on the top of the paragraph 9 a sloped heel surface 5 educated is that as a support for the support area 14 serves. The end of the panel forms a substantially vertical paragraph front 81 that has a rounding in the top of the sales 5 passes.

Through the top of the sales 5 and the support area 14 a relatively large contact surface is provided on which the two panels 1 . 2 in the connected state to each other. The bevel around the angle μ causes a movement component in the transverse direction Q to be generated towards each other during a vertical load, so that in the locked state in the case of a force component acting from above, the gap between the two panels 1 . 2 is reduced and the original locking can be done by inserting and swinging a first panel in a second panel without a bias.

Paragraph 9 is designed so that at the front of the sales 81 a recess 311 is trained in, as in the 15 can be seen, a corresponding projection 300 on the wall 111 engages the first side edge. The recess 311 forms an undercut, so that by a positive engagement of the projection 300 into the recess 311 a lock in the vertical direction V is formed. Above the rounded connection from the heel top 5 to the front of the sales 81 is a free space in the mounted state 180 formed, a certain movement of the panel 1 towards the second panel 2 at a vertical load. Likewise, in this free space 180 Collect chips. The bottom of the tab 300 lies on a corresponding slope of the recess 311 on, allowing a precise angle assignment of the panels 1 . 2 is guaranteed. In addition to the positive locking at the top 120 the feather 10 is due to the formation of positive-locking elements 300 . 311 a second locking point provided in the vertical direction, so that increased security against accidental pivoting back of the first panel 1 , in this case counterclockwise, is prevented.

Between the spring 10 and the top 15 of the panel 1 is an undercut 17 formed, which is at a right angle to the top 15 running edge connects. The undercut 17 forms in the assembled state of a space in which abrasion or not removed chips can be included in the manufacturing process. Also, a corresponding design of the round front portion of the spring 10 provided so that the spring 10 in the assembled state also a gap 19 training, which can act as a dust bag and movement space.

Laying and locking two panels 1 . 2 with such a profile picture is done by the first panel 1 with the spring 10 angled to the second panel 2 set and the spring 10 in the recess 3 of the second panel 2 is inserted. Subsequently, the angled first panel 1 pivoted about an axis parallel to the longitudinal direction of the first side edge, in the present case in the clockwise direction, so that the provided with a round contour front portion of the spring 10 in the correspondingly shaped recess 3 slides along until the top 120 the feather 10 at the corresponding bottom 40 the upper lip 4 is applied. In this state, as in the 15 is shown by the undercut of the upper lip 4 and the paragraph 9 achieved an effective locking in the vertical direction V and in the transverse direction Q.

16 shows a floor panel 1 which is not covered by the invention, in the profile design of the first side edge, wherein the panel with a spring 10 and on the opposite side with a correspondingly formed groove 3 Mistake. The groove 3 and the spring 10 extend over the full length of the side edge. At the spring 10 an outwardly projecting, rounded nose is provided to which the underside 12 the feather 10 with a rounded contour follows. The radius of this contour is constant over at least 90 degrees of circumference and thus allows easy insertion of the spring 10 in the groove 3 ,

When assembled, the spring engages 10 in one through the upper lip 4 the groove 3 formed undercut, so that along the first edge locking in the vertical direction V takes place. The locking in the transverse direction Q is effected by the positive engagement of the underside 12 the feather 10 on a heel 9 who is the groove 3 concludes. On the top of the heel 9 is a horizontally extending surface formed as a support for a support area 14 serves.

17 and 18 show a floor panel 1 which is not covered by the invention, with an alternative profile design. Again, the panel 1 with a spring 10 and on the opposite side edge with a recess 3 Mistake. The recess 3 and the spring 10 extend over the full length of the opposite side edges. At the spring 10 is an outwardly projecting tip with a vertical front 101 provided, the spring 10 has an upward sloping, wedge-shaped contour. From the top 101 the feather 10 runs a horizontal bottom 12 to which an undercut 13 followed by a sloping, straight wall 130 is formed, which at an angle β to the top 15 inclined. A on the wall 130 subsequent support Area 14 runs parallel to the top 15 the panels 1 , and provides a convenient support surface for receiving vertical forces. The support area 14 Panel side is by a slightly inclined to the vertical wall 111 limited, wherein the angle λ is an acute angle.

The undercut 13 causes, as in the not included in the invention 19 shown, a lock in the transverse direction Q, in which a positive locking with a corresponding paragraph 9 the recess 3 will be produced. When assembled, the spring engages 10 in one through an upper lip 4 the recess 3 formed undercut, so that a straight, presently inclined top 120 the feather 10 at a bottom 40 the upper lip 4 is applied and a locking in the vertical direction V along the first and opposite side edge takes place. Paragraph 9 is on a lower lip 6 which is a horizontal top 60 having, the recess 3 trained and completes this, taking on the top of the paragraph 9 a horizontal shoulder surface is formed, which serves as a support for the support area 14 serves. The end of the panel forms a sloping front 81 , which passes over a rounding in the paragraph top.

Through the heel top and the support area 14 a relatively large contact surface is provided on which the two panels 1 . 2 in the connected state to each other. Paragraph 9 is designed so that at the front of the sales 81 a recess 311 is trained in, as in the 19 can be seen, a corresponding projection 300 on the wall 111 engages the first side edge. The recess 311 forms an undercut, so that by a positive engagement of the projection 300 into the recess 311 a lock in the vertical direction V is effected.

The top of the tab 300 lies on a corresponding slope of the recess 311 on, allowing a precise angle assignment of the panels 1 . 2 is guaranteed. In addition to the positive locking at the top 120 the feather 10 is due to the formation of positive-locking elements 300 . 311 a second locking point provided in the vertical direction, so that increased security against accidental pivoting back of the first panel 1 , in this case counterclockwise, is prevented. The locking effect is due to the rectilinear design of the spring top 120 , the bottom 40 the upper lip 4 , the top 60 the lower lip 6 and the bottom 12 the feather 10 increases, since the rectilinear configuration difficult pivoting and the profile is held in position due to the elastic restoring force of the panels. Furthermore, by the parallel formation of the tip 101 the feather 10 and the groove bottom 50 the recess 3 causes a further determination.

Claims (10)

Floor panel, which is in horizontal plane of one with a decorative layer ( 16 ) or the like provided top ( 15 ) and an underside provided for support on an underbody ( 7 ) is provided with means for detachably connecting at least two panels ( 1 . 2 ) is provided, wherein at a first side edge extending in the longitudinal direction of the side edge spring ( 10 ) and at the opposite side edge one to the spring ( 10 ) corresponding recess ( 3 ) is formed, and the spring ( 10 ) is formed so that a lock by inserting into the recess ( 3 ) of the second panel ( 2 ) and pivoting about an axis parallel to the first side edge, so that a locking in the transverse direction (Q) and vertical direction (V) takes place, and at a second, at an angle to the first side edge extending side edge from the bottom ( 7 ) outgoing, stepped cut-out ( 20 ) with an inner wall ( 21 ) and an outer wall ( 22 ) is formed, wherein on the walls ( 21 . 22 ) each one in the transverse direction (Q) extending positive locking element ( 23 . 24 ) is formed, and that at the second side edge opposite side edge one from the top ( 15 ) outgoing, step-shaped Ausfrä ssung ( 200 ) with an inner wall ( 210 ) and an outer wall ( 220 ) is formed, at which to the interlocking elements ( 23 . 24 ) corresponding undercuts ( 230 . 240 ) are formed and the cutout ( 200 ) one towards the top ( 15 ) paragraph ( 250 ) with a heel ( 270 ) forming a substantially horizontally oriented head surface ( 260 ), and in the lower part of the Absatzaußenwandung ( 220 ) an undercut ( 230 ) is formed, which with the form-locking element ( 23 ) of the inner wall ( 21 ) of the cutout ( 20 ) corresponds to the opposite side, wherein the positive-locking elements ( 23 . 24 ) on two mutually spaced, substantially vertically oriented walls ( 21 . 22 ) in the transverse direction (Q) and in the vertical direction (V) are formed spaced from each other and from the bottom ( 7 ) outgoing, stepped cut-out ( 20 ) one towards the bottom ( 7 ) paragraph ( 25 ) forming a substantially horizontally oriented head surface ( 26 ) and the outer wall of the paragraph ( 25 ) from the wall ( 22 ) and the inner wall ( 27 ) an upwardly extending cross section of the paragraph ( 25 ) and that between the paragraph inside ( 270 ) and the inner wall ( 210 ) of the cutout ( 200 ) a horizontal base surface ( 280 ) is formed, which is designed such that when laid panels ( 1 . 2 ) the head surface ( 26 ) on the base surface ( 280 ) and the tops ( 15 ) of the panels ( 1 . 2 ) lie in one plane. Floor panel according to claim 1, characterized in that the walls ( 22 . 27 ) of paragraph ( 25 ) are aligned with the vertical at an acute angle (α). Floor panel according to one of claims 1 or 2, characterized in that the heel inner wall ( 27 ) to the top surface ( 26 ) forms an undercut. Floor panel according to one or more of the preceding claims, characterized in that the head surface ( 26 ) has a transverse extent of 2 to 6 mm. Floor panel according to one or more of the preceding claims, characterized in that the head surface ( 26 ) 0.24 to 0.4 times the total transverse extent of the stepped recess (FIG. 20 ) having. Floor panel according to claim 1, characterized in that the recess as a groove ( 3 ) with an upper lip ( 4 ) and a lower lip ( 6 ) is formed, in which the spring ( 10 ) in the transverse direction (Q) can be latched, wherein the lower front region (Q) 11 ) the feather ( 10 ) is rounded. Floor panel according to claim 6, characterized in that the rounded front area ( 11 ) the feather ( 10 ) a flattened, substantially horizontally extending support area ( 12 ). Floor panel according to claim 6 or 7, characterized in that the rear area of the spring ( 10 ) as substantially straight, at an angle to the horizontal surface ( 13 ) formed with a corresponding projection ( 5 ) in the groove ( 3 ) causes a locking in the transverse direction (Q). Floor panel according to one of claims 1 to 8, characterized in that the spring ( 10 ) a support area ( 14 ) for supporting on a groove ( 3 ) final paragraph ( 9 ). Floor panel according to one of claims 1 to 9, characterized in that the spring ( 10 ) with an undercut ( 17 ) opposite the top ( 15 ) is provided.