CN103703197B

CN103703197B - Building panelling

Info

Publication number: CN103703197B
Application number: CN201280034259.7A
Authority: CN
Inventors: T·佩尔万; D·佩尔万
Original assignee: Sierralok Innovation Inc
Current assignee: Sierralok innovation Inc.
Priority date: 2011-07-19
Filing date: 2012-07-11
Publication date: 2016-06-29
Anticipated expiration: 2032-07-11
Also published as: RU2014103804A; MY164102A; UA114404C2; EP2734684A1; CN105971223A; CA2841240C; AU2012284623A1; AU2012284623B2; EP3760812A1; BR112014000516A8; RS55314B1; MX344603B; HUE030211T2; PT2734684T; JP2014520987A; PL2734684T3; ES2602317T3; EP3135838A1; EP3135838B1; BR112014000516A2

Abstract

The present invention relates to a kind of floor panel, described floor panel be provided with on minor face include can the vertical locking system of displaceable tongue, this can move in one direction in joint tongue groove by displaceable tongue during the vertical movement of two panellings.

Description

Building panelling

Technical field

Present invention relates generally to the field for floor panel and the mechanical locking system of building panelling.Invention shows floorboard, locking system, Method of installation and production.

Background technology

The application of the present invention

Present invention is particularly suitable for use in the floating floor being made up of floor panel, this floor panel by integrate (namely, mounted in the factory) locking system and mechanically engage, this floor panel is by consisting of: one or more upper strata, central core being made up of wood-fiber-based material or plastic material being made up of decoration panel, decorative laminate powder primary surface or decorative plastic material and be preferably located in the lower balancing layer on rear side of core.

Therefore, below will first against this application to the explanation that known technology, the problem of known system and the purpose of the present invention and feature carry out as non-limiting example, and especially for being formed as the laminate flooring with the rectangle floor panel on length limit, it is suitable to mechanically engage each other on length limit.

Length limit is mainly used in simplifying the description of the invention.Panelling can be square.The present invention is preferably used on minor face.It should be emphasized that, the present invention may be used for any floor panel, and can with all types of known locking system combination formed on long limit, wherein, floor panel engages utilizing edge at least two sides adjacent both horizontally and vertically to connect the mechanical locking system of panelling.

Present invention can also apply to such as solid wooden floor board, there is wooden or wood-fiber-based material core and the parquet floor on the surface such as wooden or wood veneer, there is printing and the surface of preferably going back japanning floor, there is plastics or cork, the floor of surface layer that malthoid, rubber are constituted.Even if in the floor of the floor with the such as crust of stone material, ceramic tile and similar material and the soft wear resisting layer with the Nomex being such as adhered on sheet material is also included within.The present invention can be also used for engaging the building panelling preferably comprising sheet material, and this sheet material is such as wallboard, ceiling, furniture component and the like.

The background of the present invention

Laminate flooring generally includes the lower balancing layer being made up of laminate, plastics, paper or similar material that board core thick for 6-12mm, upper decorative laminating surface layer thick for 0.2-0.8mm and 0.1-0.6mm are thick.Laminating surface can include melamine impregnated paper.The most frequently used core material is the fibre board with high density and good stability, and it is commonly referred to HDF high density fiberboard.Sometimes also MDF medium density fibre board (MDF) is used as core.

The Traditional laminate floor panelling of the type is to be engaged by gluing joint tongue-trough connection.

Except this traditional floor, floor panel has evolved into without using glue, but is mechanically engaged by so-called mechanical locking system.These systems include the locking device of horizontal and vertical locking panelling.Mechanical locking system is formed usually by the core of machining panelling.

Alternatively, each several part of locking system can be made up of independent material (such as aluminum or HDF), and this independent material is integrated with floor panel, i.e. engage with floor panel in the production process of floor panel.

Having the having a major advantage in that of floating floor of mechanical locking system, they are easily installed.They can also easily be taken again, and reuses in different places.

The definition of some terms

Hereinafter, the visible surface of mounted floor panel is called " front side ", and the opposite side towards subfloor of floor panel is called " rear side ".Edge between front side and rear side is called " trip edge "." horizontal plane " refers to and is parallel to the plane that the exterior section of surface layer extends.The juxtaposition top of the next-door neighbour of two adjacent joint edges of two floor panels being bonded together defines " vertical " that be perpendicular to this horizontal plane." vertically " refers to that being oriented parallel to this vertical along D1 locks." horizontal lock " refers to that being oriented parallel to this horizontal plane along D2 locks.

" on " refer to towards front side, D score refers to towards rear side, and " inwardly " is primarily referred to as the inside and central part that are horizontally towards panelling, and " outwards " is primarily referred to as flatly central part away from panelling.

" locking system " refers to coefficient connecting element, they vertical and/or level connection joint floor panels.

Correlation technique and problem thereof

In order to vertically mechanically engage long limit and minor face with the first horizontal direction being perpendicular to edge, it is possible to use some methods.One of which most common method is angle engaging (angle-snap) method.Tilt (angling) by drift angle and long limit is installed.Then along long side, panelling is displaced to latched position.By horizontal snap lock minor face.Vertical bindiny mechanism is usually joint tongue and groove.During horizontal shift, the batten with locking member is bent, and, when EDGE CONTACT, batten rebounds, and locking member enters lock slots horizontal lock panelling.Owing to needing to use hammer and knock block to overcome friction between long limit and bending batten during snap action, therefore this being connected together is complicated.

Similar locking system can also use rigidity batten to manufacture, and they connect with inclination-drift angle, drift angle gradient method when minor face and all drift angles, long limit tilt to latched position.

Recently very effective locked system is had been introduced into, it has the independent flexibility being positioned on minor face or displaceable integrated joint tongue, this joint tongue allows only to be installed by drift angle tilting action, and this is commonly referred to " vertical folding (verticalfolding) ".This system WO2006/043893 (InnovationAB) illustrated by having in.

As shown in Fig. 1 a-1f, market employs several pattern.Fig. 1 a, 1b illustrate the flex tongue 30 with the flexible snap-latch piece extended from edge.Fig. 1 c, 1d illustrate have inner side flexible part can displaceable tongue, inside this, flexible part can in the cross section of joint tongue or along joint horizontal curvature.This system is called vertical snap fit system, and they provide automatic locking during jackknife action.

This locking system can also utilize thruster action to lock, in order to when adjacent short side is folded downwardly to subfloor, can be pushed latched position from long side by displaceable tongue 30.This thruster action is likely difficult to and tilts to combine with simple drift angle, and for wide panelling, friction may be too strong.

Fig. 1 e illustrates that what have a flex tongue 30 is folded down system, and this flex tongue 30 makes one with core.Fig. 1 f illustrates the long limit locking system in downward system, and it tilts to be attached by drift angle.

Although these systems are highly effective, but still there is the space of improvement.Vertical snap fit system is designed to have joint tongue on batten panelling.Reason is in that, when top edge is formed without oblique angle (being not always the case under normal circumstances), is only capable of the slidingsurface forming inclination on fold panel.Being difficult in independent joint tongue 30 insertion groove 40 at production period, this groove 40 is positioned at and includes above the batten 6 of locking member 8.Latching force depends on engaging resistance.When being extruded inward when joint tongue and spring into backward in joint tongue groove 40 when joint tongue, only utilize height engaging resistance could realize high latching force.This generates and tend to pushing the separating force of panelling open in folding period.If the flexibility of joint tongue and extruding force elapse over time and reduce, this locking may lose intensity.This flexibility have to be quite big and allow flex tongue to shift about 1-2mm along both direction.Material for manufacturing this joint tongue is fairly expensive, and, it is common to use this flex tongue strengthened by glass fibre.

If independent joint tongue can be fixed on fold panel, and if able to exempt and carry out the engaging in the system of locking automatically in folding period, this will be highly advantageous.

Summary of the invention

The overall goal of embodiments of the invention is to provide a kind of locking system for mainly rectangular floor panel, described floor panel has the length limit installed with parallel, this locking system allows minor face to be automatically locked to each other, without producing the latching resistance of minor face and the snap action of separating force in folding period.Concrete target be to provide a kind of have on fold panel independent can the locking system of displaceable tongue, this fold panel can lock when not having any contact with the sharp upper edge of batten panelling, further, this joint tongue essentially only along a direction from the interior section outward displacement of groove.

The above-mentioned purpose of embodiments of the invention can realize by locking system and the floor panel that pass through according to independent claims whole or in part.According to dependent claims and description and accompanying drawing, embodiments of the invention are apparent from.

A first aspect of the present invention is building panelling, and this building panelling is provided with the locking system for vertically the first building panelling and the second building panelling, and this vertically is realized by panelling vertical movement relative to each other.The joint tongue groove of lateral openings is arranged on the edge of this first building panelling.Batten is outside the upper part at the edge protruding below and protruding outwardly into this first building panelling of this joint tongue groove.Can displaceable tongue be arranged on this second building panelling edge lateral openings displacement groove in.This can include the main body that extends along the edge of the second panelling and preferably tongue-locking surface by displaceable tongue, this tongue-locking surface be positioned at this can the outer top of displaceable tongue, and be configured to determine surface engagement to realize the vertically of the first and second building panellings with the slot lock of this joint tongue groove.Can including inwardly spaced apart with the upper part at the edge of this second panelling interior section by displaceable tongue, this interior section includes the joint tongue compressive surface being configured to coordinate with the batten compressive surface on batten.This can be configured at this joint tongue and this batten compressive surface relative to each other vertical movement to obtain vertically shift in this joint tongue groove by displaceable tongue.

This can be preferably the joint tongue of injection mo(u)lding by displaceable tongue.

This can be able to be asymmetrical and include projection by displaceable tongue, and this second panelling can include the chamber for holding this projection.

This projection can include flexible portion.

This batten can be provided with locking member, and this locking member coordinates with the downwardly open lock slots formed on this second panelling, for locking this first building panelling and this second building panelling in the horizontal direction.

This joint tongue compressive surface is preferably positioned as in this projection, and this batten compressive surface is preferably located on this locking member.

This batten compressive surface is most preferably on the inclined surface of this locking member, and this inclined surface is edge-oriented towards this first building panelling.

This locking system can include the cavity extending to lock slots from displacement groove.

This batten and this joint tongue compressive surface can be inclined relative to horizontal with the angle of about 25 to 75 degree.

This displacement groove can be tilt, and includes the interior section downwardly extended.

This building panelling can carry out vertically by two pairs of matching surfaces, and these two pair matching surface includes groove locking surface and tongue-locking surface and the low portion at the edge of the upper part of batten and this second panelling respectively.

This groove locking surface and this tongue-locking surface can be with respect to the horizontal plane tilt.

This groove locking surface and this tongue-locking surface can with respect to the horizontal plane tilt with the angle of about 10 to 60 degree.

This can be provided with flexible friction element by displaceable tongue.

This can include the projection that at least two extends from joint tongue main body by displaceable tongue, each projection may each comprise the described joint tongue compressive surface at the exterior section place being positioned at this projection, and described joint tongue compressive surface contacts with the locking member being located on this batten during locking.

This building panelling can be floor panel, and this exterior section of displaceable tongue can be preferably located in the unlocked position in displacement groove.

This displacement groove can vertically extend above at lock slots.

This lock slots can be vertically located at the lower section of the upper part of displacement groove.

The upper part of this locking member can be vertically located at can the lower section of tongue-locking surface of displaceable tongue.

The upper part of this lock slots can be vertically located at can the lower section of tongue-locking surface of displaceable tongue.

This penetralia part of displaceable tongue can may be located at the lower section of most external part of this joint tongue.

This joint tongue compressive surface can be vertically located at the lower section of this tongue-locking surface.

The upper part of this locking member may be located in the lower half of the central core of this first building panelling.

This batten can be flexible, so that it is bent downwardly during locking.

This chamber can be bigger than this projection, therefore has the space S of at least about 1-3mm.

This can be gradually inserted to joint tongue groove from the tongue section being close to mounted long limit to another tongue section being close to freely long limit by displaceable tongue.

Accompanying drawing explanation

Below with reference to appended schematic figures, in conjunction with exemplary embodiment, the present invention will be described in more detail, wherein:

Fig. 1 a-f illustrates the locking system according to known technology.

Fig. 2 a-d illustrates minor face locking system according to an embodiment of the invention.

Fig. 3 a-3d illustrates minor face locking system according to a preferred embodiment of the invention.

Fig. 4 a-e illustrates the preferred embodiment of minor face locking system.

Fig. 5 a-e illustrates the vertical folding of three panellings according to an embodiment of the invention.

Fig. 6 a-e illustrate the locking system during locking flexibility and can the preferred embodiment of displaceable tongue.

Fig. 7 a-c illustrate include some can the joint tongue blank according to embodiments of the present invention of displaceable tongue.

Detailed description of the invention

In order to make it easy to understand, be schematically depicted in the drawings some locking systems.It is emphasized that the combination of preferred embodiment can be utilized to obtain that improve or different function.

All embodiments can be used alone or in combination.Spaces between angle, size, rounded portion, surface etc. are merely exemplary, and can be adjusted in the ultimate principle of the present invention.

Fig. 2 a-2d illustrates the first preferred embodiment of minor face locking system, its be provided with in the edge of the second panelling 1 ' flexible can displaceable tongue 30, this can insert in displacement groove 40 and extend along the edge of this second panelling by displaceable tongue 30.This can have the tongue-locking surface 31 being positioned at outer top by displaceable tongue 30, and this tongue-locking surface 31 coordinates with the groove locking surface 21 of the internal upper part being arranged in the joint tongue groove 20 forming the neighboring edge at the first panelling 1.These locking surfaces lock panelling along the first vertical direction.These locking surfaces preferably tilt with the angle A 2 of about 10-60.This displacement groove is preferably also inclination, and exterior section than interior section closer to panel surface.

First panelling 1 includes extending outwardly into the prominent batten 6 outside vertical VP.This batten includes locking member 8.Second panelling 1 ' includes the lock slots 14 coordinating and locking in the horizontal direction panelling with locking member 8.Batten 6 has upper part 6 ', and this upper part contacts with the low portion 37 of neighboring edge and locks panelling along the second vertical direction.

The projection 34 from joint tongue main body 36 extension can be included by displaceable tongue 30.Second panelling 1 ' includes at least one chamber 35 for holding this projection.This chamber extends to lock slots 14 from displacement groove.

This chamber can be formed by screw tool or by displaceable saw blade.

Described projection includes the joint tongue compressive surface 32 coordinated with the batten compressive surface 33 on locking member.This batten compressive surface 33 preferably becomes the angle A 1 of 25-75 degree to tilt with joint tongue compressive surface 32 with respect to the horizontal plane HP.

When the compressive surface of these inclinations is relative to each other slided during the vertical movement of neighboring edge, can shift towards joint tongue groove 20 substantially in one direction by displaceable tongue.This joint tongue can utilize the crunch against groove locking surface 21 to be locked, and locking member 8 prevents joint tongue from sliding rearward in displacement groove.

As it has been described above, one relevant with " extruding locking system " major problem is that following risk: panelling may split, thus producing crack 50 between displacement groove 40 and lock slots 14, as shown in Figure 2 d.It is therefore preferred that the upper part 8a of the upper part 14a of lock slots and locking member is formed in the bottom of floor panel, preferably, being formed below the centrage C that floor panel is divided into two moieties, the two moiety one is upper part UP, and one is low portion LP.It is also preferred that joint tongue compressive surface 32 is vertically positioned at the lower section of tongue-locking surface 31.This joint tongue compressive surface and tongue-locking surface preferably vertically offset, and are preferably located on different horizontal H 2, H1.It is also preferred that the upper part 14a of the upper part 8a of locking member and/or lock slots is vertically positioned at the lower section of tongue-locking surface 31.The penetralia part of displaceable tongue 30 can be preferably located in the lower section of most external part of this joint tongue.

Chamber 35 is formed preferably by rotating saw blade, and preferably includes the top rounded portion with exterior section 35b, the top of the internally positioned part 35a of this exterior section 35b, as shown in Figure 2 d.The interior section 14b that this chamber is preferably formed to lock slots 14 intersects.

Fig. 3 a-3d illustrates the lock function carrying out vertically moving period at the second panelling 1 ' relative to the first panelling 1.Can be expressed in joint tongue groove 20 gradually by the compressive surface 32,33 coordinated by displaceable tongue 30, and panelling utilizes two locking surfaces to coordinating, namely tongue-locking surface 31, groove locking surface 21, the upper part 6 ' of batten 6 and the low portion 37 of neighboring edge 1 ' realize vertically.

Fig. 4 a-4e illustrates different embodiments.Fig. 4 a illustrate have be positioned at projection 34 below joint tongue main body can displaceable tongue 30.Lock slots 14 is vertically positioned at the lower section of the upper part of displacement groove 40.Fig. 4 b illustrates the joint tongue compressive surface 32 being resisted against in horizontal lock inoperative batten compressive surface and lock.Fig. 4 c illustrates that the same locking surface 33 on locking member 8 can serve as compressive surface and with the locking surface acting on horizontal lock.Fig. 4 d illustrates that batten compressive surface can be formed on independent push rod 42.Fig. 4 e illustrates the projection 34 including crooked cross section and includes being formed as the locking member of upper part 44 of local protuberance, and this local protuberance is protruding above at the interior section of lock slots 14 and stretches in chamber 35.

Fig. 5 a-5e illustrates the vertical folding of three panellings, and wherein, long limit 2,2 ' tilts to be attached by drift angle, and minor face 1,1 ' is attached by the scissor motion tilted in conjunction with drift angle with vertical movement.Fig. 5 b illustrates and can be freely gradually inserted joint tongue groove 20 on long limit to another from a part at the edge on contiguous mounted long limit 2 by displaceable tongue.Fig. 5 c illustrates that the joint tongue in cutting plane A-A, Fig. 5 d, 5e illustrate the joint tongue position in cutting plane B-B and C-C.Batten 6 and locking member 8 in this embodiment are designed to during locking to bend backward, and due to can by this batten sweep or fully provide required flexibility, therefore this be conducive to locking.Lock slots is vertically positioned at the lower section of the low portion of displacement groove 40.

Fig. 6 a illustrates that locking system can be formed such that some parts are flexible, for instance projection 34, locking batten 6 and locking member 8.This flexibility may be used for reducing or eliminating manufacturing tolerance and be conducive to easily and securely locking.Fig. 6 a illustrates that batten 6 can be bent downwardly and locking member 8 can downwardly and outwardly bend.This bar plate benging can be conducive to locking, and this locking even can by including can completing by displaceable tongue (such as, mainly including the joint tongue of wood fiber material) of limited flex.Flexibility can be utilized to complete locking, wherein can the part of displaceable tongue 30 in the horizontal direction by slight curvature or compression such as only about 0.1-1.0mm.

Fig. 6 b and 6c illustrates the embodiment of joint tongue.Frictional connection part 38 can be utilized to be fixed in displacement groove by displaceable tongue 30.Projection 34 can include the flexible part 39 forming pretension against joint tongue groove 20.Chamber 35 can be more much bigger than projection, and preferably has the space S that can be about 1-3mm.

Fig. 6 d illustrates have the locking system being projected into the slidingsurface 45 outside vertical VP.Joint tongue groove 20 is preferably formed on the edge surface 46 of inclination.This embodiment offers following advantage: can be extruded inward by displaceable tongue 30, and traditional two-way snap action can combine with the unidirectionally extruded motion being used for being formed final locking.

Fig. 6 e illustrates the independent joint tongue 30 of the lateral openings groove 40 being arranged in the second panelling 1 ', it includes engaging lug 47 with the upwardly extending of slidingsurface 45 cooperation downwardly extended, and this slidingsurface 45 is positioned on the first panelling 1 and is projected into outside top edge and vertical VP.Second panelling 1 ' preferably includes the edge surface 46 ' of the inclination of the above and or below being positioned at joint tongue 30.Even for the panelling with straight He sharp-pointed top neighboring edge, it is also possible to easily engage.Engaging lug can replace by displaceable tongue by the flexible engaging protrusion included along its length.Can also adjusting the locking system shown in Fig. 1 d, so that it includes the edge surface tilted, and this design can be used for improving the intensity of joint.

Locking system according to the present invention may be formed as not having lock slots 14 and locking member 8, so that it is only along vertical direction lock-in edge.Locking member 8 can be substituted by the local protuberance of the latched position upwardly extending from batten 6 and being in chamber.Minor face can by the friction between long limit by horizontal lock.

All locking systems can be designed to be able to utilize drift angle tilt and/or unlock along the slip at edge.

Fig. 7 a, 7b illustrate include some can the joint tongue blank 43 of displaceable tongue, these can displaceable tongue be asymmetric preferably along joint tongue length.Fig. 7 a illustrates the joint tongue 30 of injection mo(u)lding, and Fig. 7 b illustrate by wood-base materials make can displaceable tongue 30, it is preferably machined and punching press.

The chamber 35 formed preferably by rotating saw blade includes rounded upper part, and can include the interior section of externally-located beneath portions.

This locking system can be formed by engraving tool partially or completely.

Claims

1. a building panelling, described building panelling is provided with the locking system for vertically the first building panelling (1) and the second building panelling (1 '), described vertically passes through described panelling (1,1 ') vertical movement relative to each other realizes, and described building panelling includes:

It is arranged on the joint tongue groove (20) of the lateral openings of the edge of described first building panelling (1) and the batten (6) outside the upper part at the described edge protruding below and protruding outwardly into described first building panelling (1) of described joint tongue groove (20)；

Be arranged on the edge of described second building panelling lateral openings displacement groove (40) in can displaceable tongue (30), described can include the main body that extends along the edge of described second building panelling and be positioned at the tongue-locking surface (31) on outer top of described joint tongue by displaceable tongue (30), described tongue-locking surface is configured to coordinate to realize vertically with the groove locking surface (21) of described joint tongue groove (20), it is characterized in that

Described can include the interior section that the upper part at edge of inside and described second building panelling (1 ') is spaced apart by displaceable tongue,

Described interior section includes the joint tongue compressive surface (32) being configured to coordinate with the batten compressive surface (33) on described batten (6), make in described joint tongue compressive surface and described batten compressive surface (32,33) when relative to each other vertical movement is to obtain the locking vertically of described first building panelling (1) and described second building panelling (1 '), described can be displaced in described joint tongue groove by displaceable tongue (30)

Described can being asymmetrical and include projection (34) by displaceable tongue (30), described second building panelling (1 ') includes the chamber (35) for holding described projection,

Described batten (6) includes locking member (8), described locking member is configured to coordinate with the downwardly open lock slots (14) formed on described second building panelling, for locking described first building panelling (1) and described second building panelling (1 ') in the horizontal direction

Described joint tongue compressive surface (32) is arranged in described projection (34), and described batten compressive surface (33) is arranged on described locking member (8),

Described batten compressive surface (33) be arranged on described locking member (8) on the edge-oriented inclined surface of described first building panelling, and

Described displacement groove (40) vertically extending above in described lock slots (14).

2. building panelling according to claim 1, it is characterised in that described projection (34) includes the part of flexibility.

3. building panelling according to claim 1 and 2, it is characterised in that described chamber (35) is bigger than described projection (34), thus having the space S of at least 1-3mm.

4. building panelling according to claim 1, it is characterised in that described batten compressive surface (33) is arranged on the upper part place of described locking member (8).

5. building panelling according to claim 1, it is characterised in that described chamber (35) extends to described lock slots (14) from described displacement groove (40).

6. building panelling according to claim 1, it is characterized in that, the upper part (8a) of described locking member (8) be vertically positioned at described can the lower section of described tongue-locking surface (31) of displaceable tongue (30).

7. building panelling according to claim 1, it is characterized in that, the upper part (14a) of described lock slots (14) be vertically positioned at described can the lower section of described tongue-locking surface (31) of displaceable tongue (30).

8. building panelling according to claim 1, it is characterised in that the topmost part of described locking member is arranged in the lower half of the central core of described first building panelling.

9. building panelling according to claim 1, it is characterised in that described joint tongue compressive surface and batten compressive surface (32,33) tilt with the angle (A1) with respect to the horizontal plane (HP) of 25 degree to 75 degree.

10. building panelling according to claim 1, it is characterised in that described displacement groove (40) is to tilt, and includes the interior section downwardly extended.

11. building panelling according to claim 1, it is characterized in that, described first and second building panellings (1,1 ') by first and second pairs of matching surface verticallies, described first pair of matching surface includes described tongue-locking surface (31) and described groove locking surface (21), and described second pair of matching surface includes the upper part (6 ') of described batten and the low portion (37) at the edge of described second building panelling (1 ').

12. building panelling according to claim 1, it is characterised in that described groove locking surface (21) and described tongue-locking surface (31) are with respect to the horizontal plane tilt.

13. building panelling according to claim 12, it is characterised in that described groove locking surface (21) and described tongue-locking surface tilt with the angle (A2) of 10 degree to 60 degree.

14. building panelling according to claim 1, it is characterised in that described can include flexible friction element (38) by displaceable tongue (30).

15. building panelling according to claim 1, it is characterized in that, described can include the projection (34) that at least two extends from main body (36) by displaceable tongue (30), wherein, each projection all includes described joint tongue compressive surface (32) at the exterior section place of described projection, and each joint tongue compressive surface is configured to during locking to contact with the locking member being arranged on described batten.

16. building panelling according to claim 1, it is characterised in that described building panelling (1,1 ') is floor panel.

17. building panelling according to claim 1, it is characterised in that at unlocked position, described can the high outside of displaceable tongue in displacement groove (40).

18. building panelling according to claim 1, it is characterised in that described can the interior section of displaceable tongue (30) be positioned at described can the lower section of exterior section of displaceable tongue.

19. building panelling according to claim 1, it is characterised in that described joint tongue compressive surface (32) is vertically positioned at the lower section of described tongue-locking surface (31).

20. building panelling according to claim 1, it is characterised in that described batten is flexible, so that described batten is bent downwardly during locking.

21. building panelling according to claim 1, it is characterized in that, described can be gradually inserted to described joint tongue groove (20) from the tongue section of contiguous mounted long limit (2) to another tongue section on contiguous freely long limit by displaceable tongue (30).

22. building panelling according to claim 1, it is characterised in that described can displaceable tongue be the joint tongue of injection mo(u)lding.