EP2094919A1 - Tongue and groove floor panel - Google Patents

Tongue and groove floor panel

Info

Publication number
EP2094919A1
EP2094919A1 EP06818832A EP06818832A EP2094919A1 EP 2094919 A1 EP2094919 A1 EP 2094919A1 EP 06818832 A EP06818832 A EP 06818832A EP 06818832 A EP06818832 A EP 06818832A EP 2094919 A1 EP2094919 A1 EP 2094919A1
Authority
EP
European Patent Office
Prior art keywords
groove
floor panel
spring
surface
characterized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP06818832A
Other languages
German (de)
French (fr)
Inventor
Marek Konstanczak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
"Barlinek" SA
BARLINEK SA
Original Assignee
BARLINEK SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BARLINEK SA filed Critical BARLINEK SA
Priority to PCT/EP2006/011331 priority Critical patent/WO2008064692A1/en
Publication of EP2094919A1 publication Critical patent/EP2094919A1/en
Application status is Ceased legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00Flooring
    • E04F15/02Flooring or floor layers composed of a number of similar elements
    • E04F15/04Flooring or floor layers composed of a number of similar elements only of wood or with a top layer of wood, e.g. with wooden or metal connecting members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/01Joining sheets, plates or panels with edges in abutting relationship
    • E04F2201/0153Joining sheets, plates or panels with edges in abutting relationship by rotating the sheets, plates or panels around an axis which is parallel to the abutting edges, possibly combined with a sliding movement
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04FFINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F2201/00Joining sheets or plates or panels
    • E04F2201/02Non-undercut connections, e.g. tongue and groove connections
    • E04F2201/025Non-undercut connections, e.g. tongue and groove connections with tongue and grooves alternating transversally in the direction of the thickness of the panel, e.g. multiple tongue and grooves oriented parallel to each other

Abstract

The invention relates to a floor panel in the form of a rectangular board having a usable surface and a base surface positioned opposite of the usable surface, the board being equipped with connecting elements at least on two edge sides that are positioned opposite of each other, wherein the connecting elements are configured in the shape of a first groove on one side, and in the shape of a first tongue on the opposite side, for joining two adjacent floor panels along a separating surface, wherein the groove and the tongue are provided with additional mechanical locking means, namely in the shape of a protrusion of the tongue that is directed toward the base surface, and a raised lip, which is configured as a rail of the groove, and the abutment surface of which, pointing toward the interior of the groove, is part of a recess formed within the groove, and having a second tongue extending on the edge side comprising the first groove along this groove, and having a second groove extending on the edge side comprising the first tongue above this tongue.

Description

Floor panel with tongue and groove

The invention relates to a floor panel in the form of a rectangular, an effective area and one of the useful area opposite base surface having plate which is provided on at least two opposite edge sides with connection elements, the adjacent two for joining along a separating surface lying floor panels in the form of a first groove on one are side and designed in the form of a first spring on the opposite side, the groove and the tongue are provided with additional mechanical locking means, in the form of a directed towards the base surface the projection of the spring, and an upstanding lip as parapet of the groove is designed and their pointing towards the interior of the groove stop surface is part of a recess formed within the groove, and with a second spring, which runs along the said first groove having edge side above the groove and a second groove at the having the first spring Kant opposite side above this spring runs. Exn floor panel of the aforementioned type is known from WO 01/48331. For connecting and jointing of two identical floor panels to each other, the elasticity of the lip bearing, projecting beyond the groove of the locking bar pin is used. Thus can be inserted the tongue into the groove and locked there, the locking pins are resiliently by a butt joint. The resilient deformation of the outline of the locking pin is forced by geometrical conditions of the groove and the spring by the clear width of the groove is smaller than the maximum thickness of the spring. When imports of the tongue into the groove, the clear width of the groove increases. After locking it takes its original level again. Therefore, the known floor panel is charged to the known group of tongue-and-shock profiles. A disadvantage is that the latch pin can be broken when an excessive impact is applied or incorrect. Even the shock requires a metered force that can easily be exceeded and leads to excessive stretching, and also to a strong noise.

The object of the invention is to develop a gattungsgemaßes floor panel which does not require elastic deformation of its projecting beyond the groove of the locking bar pin during the laying substantially and thus needs a less strong impact.

This object is achieved by a floor panel of the aforementioned type, in which

proceeds a second spring on the longitudinal side of the first groove and the lip having floor panel, a second has the opposite longitudinal side carrying the first spring with the protrusion,

the second spring is arranged above the first groove and has a bottom, sloping in the direction of the parting plane in the laid state of two Fusbodenpaneele upward flank, which separation plane is defined by a side of the end of the useful area,

the second groove is located in the installation state above the first spring and having a lower, downwardly inclined towards the base surface side surface,

wherein the lower edge of the second spring and the underlying side surface of the second groove include a first acute angle with the plane useful surface of the floor panel.

The solution according to the invention enables a simple and silent connection and joining of the tongue and groove, and thus the floor panels with each other by pivoting. The assembly is simple and guarantees the stiffness of the laid floor, while retaining the necessary freedom of movement of the floor panels. The latter is required to compensate for wood humidity changes caused by the microclimate in the respective room. The assembled into a floor tile floor panels then tend as a result of changes in wood moisture for joint training. These displacements and joint formations can be compensated for by a force exerted on the abutment surface of the lip pressing force of the first spring is arranged on the projection, so that the connection is brought into a stable end position.

For a better understanding of the description, the following terms are explained as they are used in connection with the description of the present application:

- "floor": consists of several laid, joined floor panels;

- "useful area" or "tread" corresponds to the upper side of the floor panels according to the laying resultant;

- "base surface" corresponds to a passage area of ​​the opposite bottom side of the floor panel;

- a vertically arranged to the tread surface "parting plane", which is defined in a projection onto the tread surface by a top, extending above the second groove and the second spring longitudinal or transverse edge of the floor panel, in other words in the middle by the side finisher of the floor panel;

- "Gegenpaneel" refers to the respective floor panel, which cooperates with the other;

- and terms such as "top", "upper", "bottom", "lower", "below", "above" refer to the laid on a flat surface floor panels, as is also shown in the drawing. The protrusion of the first spring - in the installation condition of the floor panels - is a rounded down Wulstleiste which is held in the groove similarly as in a joint socket. The dimensions are adjusted so that a horizontal, slight movement of the floor panels is possible. The radius of the cross-sectional area of ​​the rounded Wulstleiste is related to the radius of curvature of the groove is approximately from 1: 5 to 1:10.

The rounding of the Wulstleiste is also useful if one of the floor panels is to bring together in an inclined or tilted position with the other. The rounding of the Wulstleiste permits smooth sliding of the first spring over the lip and over a lip of the adjacent part of the concave abutment surface.

The rounding of the Wulstleiste of the first spring can pass through a perpendicular relation to the base surface of the floor panel arranged Nutwangenabschnitt in the bottom of a longitudinal groove, in which can engage the lip of the Gegenpaneels. Preferably, the lip is arranged in the installation state plan parallel to the bottom of the longitudinal groove.

Preferably, the lower edge of the second spring having an upper side surface of the first groove and corresponding to an underlying side surface of the second groove with an upper edge of the first spring covers, wherein the lower edge of the second spring and the lower side surface of the second groove a first acute include angle with the tread surface of the floor panel. Preferably, the first acute angle is in an angular range of 15 ° ± 2 °. This angular range has been determined empirically and is consistent with the above-mentioned rounding of the circle segment and the - in the laying condition - underlying concave stop face match. The dimensional ratios of the first groove to the first spring and corresponding to the second groove to the second spring are set so that when laying the floor panels substantially no flexural deformation of the above can be expected parts. This is particularly due to the fact that the clear width of the lower first groove does not fall below both in a horizontal and in a tilted position of the floor panels to each other, the dimensions of the first spring, but sufficient clearance is allowed, wherein a in the final installation position defined allocation is reached.

It is advantageous that the side surfaces of the first groove mutually converge towards the groove bottom, preferably in each case at a second acute angle to the tread surface and, accordingly, against the base surface of the floor panel. Preferably, the second angle about 15 °, wherein the two flanks of the first spring having a first groove corresponding convergence.

It is advantageous that an end face of the first spring coincides with the arranged perpendicular to the tread surface or parting plane is set back relative to the parting plane, whereby the material losses during processing can be reduced. However, execution is possible conclusions, which extends the first spring over the parting line.

Preferably, the abutment surface of the lip rises at an acute angle to the base surface in the direction of groove bottom of the first groove and goes over in a flat inner surface of the longer arm of the first groove.

The floor panel is preferably made of wood or wood material and consists of a central core layer, a visible layer and the usable area resulting a bottom, the base surface resulting layer.

Preferably lies below the lip has a second, oblique stop face which can form a lateral end of the lower layer at the longitudinal side of the floor panel substantially. The oblique stop surface runs in this embodiment pairs in parallel oblique abutment surfaces on the other side of the panel. The installed panels form a gap, which preferably has a width of 0.4 mm in the dry state of the floor panels. The empirically determined gap width corresponds to a predicted increase of the linear dimensions of the floor panels with increasing moisture. Preferably, the abutment surfaces form a third acute angle with a perpendicular aligned with the useful signal or the base surface level.

The upstanding lip transmits the load to the second abutment surfaces in the lower part of the floor panel, thus the aforementioned controlled movement of the rounded protrusion and at the same time a slight initial displacement of the floor panels to each other can be brought parallel to the ground. Lowers the wood moisture, the floor panels come back to its original position.

It is advantageous when a ventilation canal is incorporated to the lower layer at least, which preferably extends parallel to the longitudinal side of the floor panel.

Preferably, the abutment surface of the lip merges into a plane, inclined side face, which can be performed under a fifth acute angle relative to a plane parallel to the parting plane. This inclined side surface opens into a top end of the lip, where it forms a nose which prevent the slipping of the lower curve of the first spring out of the stop surface on the lip. the fifth acute angle is preferably about 15 ° ± 2 °.

Preferably, the first and the second groove are incorporated in the core layer. The core layer may consist of solid wood or of at least two strips glued together. The strips can be made of solid wood or wood material.

a round, concave trough can be arranged on the abutment surface of the lip, the radius of which is equal to or greater than the radius of the rounding at the bottom of the first spring.

further connection elements may be provided on the short transverse sides of the floor panels, consisting of an on one side of the floor panel and a third spring disposed on opposite side of the third groove. At the third spring is a directed to the base surface, preferably triangular projection and at the third groove a compatible to the projection locking groove may be provided. The third spring may have an upper inclined edge that is below a fourth acute angle to the floor space. At the third groove turn a correspondingly inclined, o- bere side surface may be disposed. The size of the fourth acute angle is about 12 °.

is of great advantage that the connection of two floor panels, can ensure according to the invention, a required stability and freedom offset both in dry state and after the moisture increase, which occurs primarily within the core layer. The pressure forces occurring during assembly at the contact points of the groove and tongue joints stabilize the position of the floor panels. As stability of the connection is, above all, resistance to the changes in position, that is tilting the floor space designated in the separation plane, so that the floor space of the entire installed floor comes to lie in one plane.

The solution according to the invention enables an embodiment of the floor panels, in which arranged on the long side, first spring is located within a rectangular outline, which is defined by the tread surface, and separating plane base surface of the floor panel. This leads to significant material savings in Verarbeitungspro- process. Embodiments of the invention are explained in more detail with reference to the drawing. The figures show:

Figure 1 represents a floor panel in a schematic plan view of its useful area.

Fig. 2 shows a cross section AA of Fig. 1,

Figures 3a, 3b, enlarged details of the mechanical locking means of two floor panels at their longitudinal sides, before and after the connection, also in a cross section;

Figure 4 shows two floor panels of Figure 2 while laying on a flat surface..;

Fig. 5, the floor panels according to FIG 4 after installation.

6a shows a second embodiment of the floor panel, also in a cross section as shown in FIG.2.

Fig. 6b shows an enlarged detail of the connection of two floor panels according to FIG 6a, on its longitudinal sides.

Figures 7a, 7b, enlarged details of the mechanical locking means on the longitudinal sides of two floor panels according to a third embodiment, before and after the connection, in a cross section; Fig. 8a is a sectional view BB of FIG. 1;

Fig. 8b shows an enlarged detail of the mechanical

Locking means two floor panels at their transverse sides after connection.

The floor panels 1, 1 shown in Figures 1, 2, 3a, 3b, 4 and 5, rectangular 'are made in cross-section of three glued-together layers of different wood materials. In the exemplary embodiment, a substantially three-layer floor panel is shown, which consists of a core layer 2 of crosswise softwood strips 40, from a top view of layer 3 made of solid wood with an overhead sealer, and a lower layer 4 of softwood having a longitudinally extending wood fiber orientation.

The upper layer 3 is view of a useful area 24 and the lower layer 4 bounded by a base surface 25 with which the floor panels 1, 1 'are to be laid on a flat surface in the joining compound.

On the opposite edge sides 51, 52 the floor panels are provided with connecting elements which are arranged for joining along a separating surface T. It is particularly directed to the figures 3a and 3b. In the core layer 2, a first, inscribe, profiled groove and on the opposite longitudinal side 5 of the floor panel 1 is inserted into a profiled adapted to the groove 5, the spring 6 on one longitudinal side of the floor panel 1 '. The first spring 6 is βa from an upper edge and a lower projection limited. 7 In laying condition the spring 6 of the floor 1 is engaged (3b and 4, see FIGS.) In the groove 5 of the other adjacent floor panel 1 '.

The first groove 5 is limited to its lower layer 4 facing side of one protruding beyond this groove leg 5. 8 This, forming a locking element, elongated leg 8 has an upwardly projecting at its free end, the groove-limiting lip 5

9, which is therefore designed as parapet of the groove. 5 The pointing towards the interior of the groove stop surface is part of a concave recess formed within the groove 5 of 29, which is formed by cutting Woodworking

(See. Fig. 3a). so that a groove is formed 9 'from the inner side of the lip.

The concave recess 29 muldet downwardly towards its lying at the top of the lower layer 4 apex 31, wherein the groove is rounded 9 '. The recess 29 is located over the apex 31 in an upward direction in the groove 5 extending, planar inner surface 10 continues. The continuing upward inner surface

10, the recess 29 also forms a lower side surface of the first groove 5. With reference numeral 5a an upper side surface of the first groove 5 is designated.

The cavity of the groove 9 'has a first radius Rl, the center of the circle 32 is positioned approximately at the effective area 24 of the floor panel. As shown in FIGS 3a and 3b, the bottom inner surface 10 and the upper side surface converge 5a of the first groove 5 to each other in the direction of the groove bottom 30, where they form a seventh acute angle ω which is about 15 °. The bottom inner surface 10 of the groove 5 is α inclined at a first acute angle relative to the base surface 25th The angle is approximately 15 °. The upper side surface 5a of the first groove 5 is ß at a second acute angle with respect to the effective area 24 is inclined, which also is about 15 °. The upper edge 6a of the first spring 6 is also below the second acute angle ßmit 15 ° inclined relative to the useful area 24th

The downward projection 7 of the first spring 6 has a Wulstleiste 27 with a rounding in the form of a circular segment. The rounding of the Wulstleiste 27 has a second radius R2, the length of which in the present case is about 1/7 of the length of the first radius Rl.

The Wulstleiste 27 merges into a groove bottom 28 of a longitudinal groove 11 into which the lip engages 9 in the installation condition of the floor panels (see. Fig. 3b). The longitudinal groove 11 1 is slightly wider than the plane parallel to the groove base 28 disposed lip 9. After joining two floor panels 1, 'together form the stop face 9? the lip 9 and the contacting with the stop surface 27 of the first spring 6 Wulstleiste mechanical locking means which prevent the drifting apart of the floor panels parallel to the base surface 25 or to the respective substrate. Above the first groove 5, alongside extending a second, top of a and a lower edge 35, 33 limited spring 12. The lower edge 33 coincides with the upper, ß under the above-mentioned acute angle inclined side surface 5a of the first groove. 5

The second spring 12 extends through an upper Seitenab- circuit 26 'of the useful area of ​​the floor panel 1' also, but is shorter than the extended, with the lip 9 provided leg 8. The first spring 6, however, is designed so that its front face 34 slightly is recessed from an upper side finisher 26 of the effective area of ​​the floor panel. 1 Such an embodiment is advantageous because of relatively small material losses in the wood processing. With reference numeral 36 is referred to before it is processed to a floor panel with a dot-dash line, a rectangular perimeter of the floor panel blank.

On the opposite side of the floor panel, a second groove 13 is located above the first spring 6, the lower side surface 37 coincides with the upper edge 6a of the first spring. 6 In addition, also at the same acute angle ß relative to the usable surface 24 inclined. The correspondingly inclined flanks 33; 6a of the springs 12; 6 and side surfaces 5, 37 of the grooves 5; 13 allow for laying of floor panels by pivotal movements without bending of the leg. 8

When laying the floor panels 1, 1 'engage the springs 6; 12 in the grooves 5; 13, until the two successive facing side 26 degrees 26 ', a separation plane T come in making contact. The second groove 13 of the floor panel 1 then also contacted with the second spring 12 of the Gegenpaneels.

The leg 8 ends with a below the lip 9 lying first inclined stop surface 14, which at a third acute angle δ is arranged opposite one oriented perpendicular to the base surface 25 plane E. The angle δ is about 30 °. As FIG. 3a shows the downwardly open longitudinal groove 11 of the floor panel 1 merges into a second inclined abutment surface 15 on which after laying (see. Fig. 3b) of two floor panels 1, 1 'parallel to the first inclined stop surface 14 extends ,

The fine dimensions of the floor panels 1, 1 'are selected such that after laying an oblique gap is formed S (see FIGS. 3b and 5) between the oblique abutment surfaces 14, 15 whose size corresponds to an expected increase in linear extent of the floor panels. The S column is in this case about 0.4 mm wide and may approach the value zero, when the material of the floor panels is slightly humid. Thus, the first and second lower abutment surfaces 14 to transfer a 5 indicated in Fig. 15 fourth force F4, which can be caused by swelling of the moistened material. Swells the material on which Wulstleiste 27 can press against the lip 9 and consequently exert a pressure on the first bottom stop surface 14 on the second bottom stop surface 15 °. The gap S decreases and takes the zero value in the extreme. It is believed that, for a column width of 0.4 mm, the floor panels m dry state, which is established at a relative humidity between 50 and 60 percent at a room temperature between 18 0 C and 24 0 C.

As the figures 2, 3a and 3b it can be seen, the first and the second groove 5; 13 and the first and the second spring 6; 12 incorporated to the core layer. 2 In the embodiment according to FIG. 2 6a, the core layer 2 made of solid wood, whereas according to FIG. Glued together from thin wood battens 40.

In the embodiment shown in Figures 8a and 8b embodiment tongue and groove Verbmdungselemente are provided on the short transverse sides of the floor panels, in which a located on one side of the floor panel third spring facing 16 has a base surface 25 having triangular projection 17th On an opposite side of the spring 16 of the floor panel a compatible to the spring 16, third groove 18 is again provided, the protruding into a lower, about the parting plane T passes over the second leg 20th The third spring 16 has an upper, inclined flank 38, the ε at a fourth acute angle is located to Nutzflache 24, wherein the fourth acute angle ε, whose size amounts to approximately 12 °, even for an upper side surface 39 of the groove 18 is considered. On the second leg 38 has a triangular, adapted to the third groove 18 latch groove 19 is incorporated, which is located approximately in the parting plane T.

As FIG. 2 shows, the lower layer 4 at least one along the longitudinal side of the floor panel 1 extending, rectangular in its cross-section ventilation duct 21, with the occurring in the area of ​​the base surface 25 of moisture can be discharged quickly. As the moist air is lighter than the dry, there arises a forced, following the natural drive air circulation. The ventilation channels 21 act at the same time, contrary to the excessive stresses which arise as a result of the transverse stretching forces to the fiber orientation in the area of ​​the joint and can lead to cracking and splitting of the lower layer. 4

The hygroscopic material of the floor swells or contracts due to the changes in humidity in the area. Absorbs the moisture to the lower layer 4 and the core layer 2, the effect of moisture can be exposed first. As a result, 27 presses the Wulstleiste against the stop surface 9 of the lip 1 9 having a composition shown in Fig. 3b, the third force F3. Even with the aforementioned fourth force F4, the lip 9 is pressed against the lower abutment surface 15 of the adjacent floor panel, whereby the S column decreases to zero value. However, the pressure acts against the lower stop surface 15 so that the Wulstleiste 27 slides over the abutment surface 9 'of lip 9 and a slight telescoping of the two floor panels 1, is carried I. 1 Thereafter, the moisture of the wooden material of the top visible layer 3 and an increase its dimensions transversely to the longitudinal direction of the floor increases. The mechanism of action of changes in moisture gain can be described as follows: In the case of swelling of the core layer 2, it comes to the increase in the thickness of the first spring 6, and at the same time for reducing the width of the first groove 5. As a result, contact stresses to within the compound to a difference in thickness of the floor panels 1, can lead to their parting plane T 1 'in which the visible land 24 of the two floor panels no longer lie in an alignment plane. As a remedy, the additional second slot 13 and second spring serve 12. This additional tongue and groove connection compensates for the changes of the floor panels caused by swelling and contraction of the first groove 5 and the first spring 6 perpendicular to the base surface, in the parting plane T . As a result, a required average of the moisture-induced swelling of the core layer 2 is achieved at the longitudinal sides of the floor panels in the region of the separating plane.

Since the material-based continuity of the core layer 2 in the area of ​​the springs 6; 12 is interrupted, the positional changes of the effective area 24 are limited to a minimum. So take a fifth and a sixth force F5; F6 at the contact point of the upper side surface of the second groove 6a 13 and the lower edge 6a of the second spring 12 (see FIGS. 3b and 7b), which counteract the changes in position of the effective area 24 in the plane of separation and to stabilize the resulting compound. Finally, the upper edge 35 of the second spring 12 and a berfläche with this to be contacted O- upper 41 of the second groove 13 of the stability of the encryption contribute to bond, since the two are parallel to the useful area 24th

It comes to the swelling of the wood-based material, which is exemplified by the aforementioned forces F3, F4, and to increase the pressure of the Wulstleiste 27 against the abutment surface 9 'of the lip.

As moisture dropped the interconnected floor panels come back to its initial position. The stiffness of the floor is not affected. Those shown in Figures 3b, 6b and 7b, horizontally directed forces Fl, F2 secure the floor panels before their damage in the parting plane T.

In one illustrated in Figures 6a and 6b embodiment, the abutment surface 9 'of the lip in a goes plane, inclined side surface 42 over which is performed under a fifth acute angle Y with respect to a plane parallel to the parting plane T plane El and in the height of the lip 9 is a forms nose 22nd The angle y is 12 ° in the region. The lug 22 additionally prevents it from slipping out of the Wulstleiste 27 from the stop surface 9 'over the lip 9. As shown in FIG. 6b shows the Wulstleiste 27 of the first spring merges into a parallel to the base surface 25 extending lower side 43. Here, the bottom, is formed on the abutment surface 9 'subsequent inner surface 10 of the first groove from the top of the lower layer 4 of the floor panel. Between the edge 43 of the spring and the inner surface 10 of the first groove a to Wulstleiste 27 extending gap 47 remains In another, in Figures 7a and the embodiment shown 7b forms the stop surface 9 'of lip 9, a circular recess 23 of a third radius R3, which is about 8 to 9 times larger than a fourth radius R4 of the lower Wulstleiste 27 of the first spring. A special feature of the present embodiment is that the recess 23 passes over an upwardly bent edge 44 into the lower inner surface 10 of the first groove, the latter at a sixth acute angle φ with respect to the base surface 25 extends. The angle φ is about 15 °. Accordingly, the lower Wulstleiste 27 projects showing a lower edge 45 down and adjoins this via a second bending edge 46th The lower edge 45 is also an acute angle inclined to the base surface 25th The trough 23 forms after the joining two floor panels with each other a seat for the Wulstleiste 27 and thereby improves the rigidity of the connection. The end face 34 of the first spring 6 is shown in FIG. 7a in the separation plane T.

BLKP 03 PCT LIST OF REFERENCES. dt. doc

LIST OF REFERENCE NUMBERS

1, 1 'Fusbodenpaneel

2 core layer

3 visible layer

4 lower layer

5 first groove

5a side surface

6 first spring

6a edge

7 lead

8 legs

9 lip

9 'groove

10 inner surface

11 longitudinal groove

12 second spring

13 second groove

14; 15 stop face

16 third spring

17 triangular projection

18 third groove

19 triangular groove

20 limb (arm)

21 ventilation channel

22 nose

23 trough

24 Usable area

25 base surface

26; 26 'side finisher

27 Wulstleiste

28 groove bottom

29 recess

30 groove bottom

31 vertices

32 Circle center

33 edge

34 face

35 edge

36 outline

37 lower side surface

38 edge

39 upper side surface 40 of wood bar

41 surface

Side surface 42 (v. 22)

43 edge

44 bent edge

45 edge

46 bent edge

47 gap E, El level

Fl first force

F2 second force

Third force F3

F4 fourth force

F5 fifth force

F6 sixth power

Rl first radius

Second radius R2

Third radius R3

R4 fourth radius

S column

T α release surface first acute angle ß second acute angle δ third acute angle ε fourth acute angle

Y fifth acute angle φ sixth acute angle ω seventh acute angle

Claims

claims:
1. The floor panel in the form of a rectangular, a usable area (24) and one of the useful area opposite base surface (25) having plate which on at least two opposite edge sides (51; 52) is provided with connecting elements, the adjacent two for joining along a separating surface lying floor panels are provided in the form of a first groove (5) on one side and in form of a first spring (6) on the opposite side, wherein the groove (5) and the spring (6) are provided with additional mechanical locking means, namely directed in the form of the base surface (25) projection (7) of the spring (6), and an upstanding lip (9) which is designed as parapet of the groove (5) and the pointing towards the interior of the groove abutment surface (9 1) part of a within the groove formed recess (29), and having a second spring (12) on which the first groove (5) having side edge (51) extends above the groove (5), un d with a second groove (13) on which the first spring (6) having opposite edge side (52) above said spring (6), characterized in that the second spring (12) has a lower, in the joined state according to above in the direction of separating surface (T) of two floor panels inclined flank (33),
that the second groove (13) has a lower, downwardly inclined towards the base surface (25) side surface (37),
wherein the lower edge (33) of the second spring (12) and the underlying side surface (37) of the second groove (13) both include an acute angle (ß) with the planar area (24) of the floor panel
and that a groove (9 ') is formed by the inside of the lip (9),
a rounded bead and of the projection (7) - projecting ledge (27) which engages in an articulated manner joined floor panels in the aforementioned groove (9 ') of the lip (9).
2. The floor panel according to claim 1, characterized in that in the joined state, the lower edge (33) of the second spring (12) with an upper side surface (5a) of the first groove (5) covers, and that the side face located at the bottom (37 ) of the second groove
(13) with the upper edge (6a) of the first spring
(6) covers.
3. The floor panel according to claim 1, characterized in that the rounded Wulstleiste (27) in its cross-section has the shape of a circular segment.
4. The floor panel according to claim 3, characterized in that the radius (R2) of the cross-sectional area of ​​the rounded Wulstleiste (27) to the radius (Rl) of curvature of the groove (9 ') extends approximately from 1: 5 to 1:10 behaves.
5. Floor panel according to claim 4, characterized in that the rounding of the Wulstleiste (27) in a groove bottom (28) a longitudinal groove (11) merges into which engages the lip (9) in the joining condition of the floor panels.
6. The floor panel according to claim 5, characterized in that the lip (9) is arranged with its top edge in the joining of the floor panels plane parallel to the groove base (28).
7. The floor panel according to claim 5, characterized in that the rounding of the Wulstleiste (27) via a bending edge (46) at its base surface facing (25) edge (43; 45) connects, and that the lower vertex of the Wulstleiste on the edge (43; 45) projects downwardly.
8. The floor panel according to claim 7, characterized in that facing the base surface (25) edge
(43) the first spring (6) parallel to the base surface (25) of the floor panel extends.
9. The floor panel according to claim 7, characterized in that the side facing the base surface (25) edge (45) of the first spring (6) opposite the base surface (25) is inclined.
10. The floor panel according to claim 1, characterized in converge that the upper side surface (5a) and lower inner surface (10) of the first groove (5) in the direction of the groove bottom (30) of the first groove of the floor panel at an acute angle (ω).
11. Floor panel according to claim 10, characterized in that the acute angle (ω) in the range of 15 ° ± 2 °.
12. Floor panel according to claim 1, characterized in that the groove (9 ') of the lip (9) in a planar inner surface (10) of the first groove (5) merges, at an acute angle extending towards the groove bottom (30) of the first groove for base surface lifting.
13. The floor panel according to claim 1, characterized in that an inclined face is formed between the lip (9) and the base surface (25) is arranged which forms a first stop surface (14), and that on the opposite longitudinal side of the floor panel also a sloping end face is forming a second abutment surface (15), both inclined end surfaces at a third acute angle (δ) to a vertical plane (e) are provided and the dimensions of the floor panel are dimensioned so that after joining two floor panels (1 and 1 ' ) in the dry state a column (S) between the stop surfaces (14, 15) gives a predetermined compensation increment at the dimensions of the floor panels.
14. Floor panel according to claim 13, characterized in that the third acute angle (δ) is about 30 °.
composed 15. The floor panel according to claim 1, characterized in that the floor panel in wood or a HoIz- is executed material and of a core layer (2), a visible layer (3) and a lower layer (4), wherein the first and the second groove (5; 13) and the first and the second spring (6; 12) in the core layer (2) are located.
16. Floor panel according to claim 15, characterized in that the core layer (2) is composed of wooden slats
(40) composed of and / or consists of mechanical pulp, which are glued permanently to the backsheet and the visible layer.
17. The floor panel according to claim 1, characterized in that the base surface (25) is interrupted by at least one ventilation channel (21) formed on the lower layer (4) is incorporated and is parallel to the longitudinal sides of the floor panel.
18. Floor panel according to claim 1, characterized in that the Höhlkehle (9 ') in the vicinity of an upper edge of the lip (9) terminates in a flat side surface (42) and there forms an acute angle (Y) with a vertical plane (El) and forming a nose (22).
19. Floor panel according to claim 18, characterized in that the acute angle (γ) is about 15 °.
20. The floor panel according to claim 1, characterized in that
have its transverse edges connecting elements on one side with a third spring (16) and on the other side with a third groove (18) are provided,
the third spring (16) facing one to the base surface (25), triangular projection (19),
is on the opposite side, a third groove (18) having a triangular locking groove (19),
wherein said third spring (16) is an oblique, the projection (17) facing away from side surface (38) at an acute angle (ε) to the plane to the effective surface (24) of the floor panel is located in parallel, with a respective side surface (39 ) is bevelled to the third groove (18) at an equal angle.
21. Floor panel according to claim 20, characterized in that the acute angle (ε) is approximately 12 °.
EP06818832A 2006-11-27 2006-11-27 Tongue and groove floor panel Ceased EP2094919A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/EP2006/011331 WO2008064692A1 (en) 2006-11-27 2006-11-27 Tongue and groove floor panel

Publications (1)

Publication Number Publication Date
EP2094919A1 true EP2094919A1 (en) 2009-09-02

Family

ID=38190846

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06818832A Ceased EP2094919A1 (en) 2006-11-27 2006-11-27 Tongue and groove floor panel

Country Status (2)

Country Link
EP (1) EP2094919A1 (en)
WO (1) WO2008064692A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2459355A4 (en) 2009-07-31 2017-05-24 Välinge Innovation AB Methods and arrangements relating to edge machining of building panels
UA108075C2 (en) 2009-07-31 2015-03-25 A method of processing edges of building panels
EP2423410B1 (en) * 2010-08-27 2013-02-13 Barlinek S.A. Building panel with improved locking means for detachable connection with building panels of the same kind
DE102011055949B4 (en) * 2011-12-01 2016-02-18 Guido Schulte A sheet-like product
WO2013191632A1 (en) * 2012-06-19 2013-12-27 Välinge Innovation AB A method for dividing a board into a first panel and a second panel, a method of forming a mechanical locking system for locking of a first and a second panel, and building panels

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Publication number Priority date Publication date Assignee Title
BE1010487A6 (en) 1996-06-11 1998-10-06 Unilin Beheer Bv Floor covering, consisting of hard floor panels and method for manufacturing such floor panels.
AU4743800A (en) 1999-12-23 2001-07-09 Hamberger Industriewerke Gmbh Joint
JP2003526752A (en) 2000-03-07 2003-09-09 エー.エフ.ペー.フロア プロダクツ フスベーデン ゲゼルシャフト ミット ベシュレンクテル ハフツング Mechanical connector of the panel
FR2828703A1 (en) 2001-08-14 2003-02-21 Europ De Laquage Et De Faconna Method of installing panels, laths or paneling having an assembly device of the edges has distribution of forces
DE20321145U1 (en) 2002-12-31 2006-05-24 Barlinek S.A. Floor panel used as floor covering, has protrusion having cross-section in form of circular sector with second radius shorter than first radius of the bearing surface of lip at longer arm of groove

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Also Published As

Publication number Publication date
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