EP2320006B1 - Floor panel with velcro elements - Google Patents

Description

• eine Trittfläche,
• eine der Trittfläche gegenüberliegende Basisfläche,
• eine die Trittfläche aufweisende Nutzschicht, aus einer der Nutzschicht gegenüberliegenden, die Basisfläche aufweisenden Unterschicht und eine dazwischen angeordnete Kernschicht, wobei die Nutzschicht mit einer senkrecht zur Trittfläche verlaufenden Stoßfläche begrenzt ist,
• zwei parallel zueinander liegende stirnseitige, schmale Seitenflächen und zwei übrige in Längsrichtung verlaufenden, ebenso zueinander parallele Seitenflächen, wobei alle Seitenflächen durch die Trittfläche und Basisfläche begrenzt sind,
• wenigstens ein Paar von an den Seitenflächen des Fußbodenpaneels eingearbeiteten, zueinander kompatiblen und im Verlegezustand zusammenwirkenden Blockierungsmitteln, mit denen das Fußbodenpaneel gegenüber einem benachbarten Fußbodenpaneel zumindest in einer Verlegeebene festlegbar ist,
• wobei das eine Blockierungsmittel einen über die Stoßfläche hinaus ragenden Schenkel aufweist, der in eine auf die Nutzschicht gerichtete Lippe ausläuft,
• das andere Blockierungsmittel eine an der Kernschicht eingearbeitete Nut aufweist, in die die Lippe des benachbarten Fußbodenpaneels eingreift und die in das Kopfstück übergeht,
• wenigstens ein Paar von an dem Fußbodenpaneel und an dem benachbarten Fußbodenpaneel angeordneten, aneinander haftenden Klettverschluss-Elementen, mit denen das Fußbodenpaneel gegenüber dem benachbarten Fußbodenpaneel zumindest senkrecht zur Verlegeebene festlegbar ist,
• ein erstes, im Material des Fußbodenpaneels geformtes, zusätzliches Verriegelungsmittel und
• wenigstens ein zweites, im Material des Fußbodenpaneels geformtes, mit dem ersten zusammenwirkendes zusätzliches Verriegelungsmittel, wobei das erste oder zweite zusätzliche Verriegelungsmittel im Verlegezustand unter Einwirkung von Druckkraft des zweiten oder ersten zusätzlichen Verriegelungsmittels linear deformiert ist,
• die beiden zusätzlichen Verriegelungsmittel eine Verbindung stabilisieren, welche im Verlegezustand durch die Klettverschluss-Elemente (A; B) gebildet ist,

wobei das erste Blockierungsmittel, das erste Verriegelungsmittel und das Klettverschluss-Element A an der (ersten) Seitenfläche angeordnet sind und das andere Blockierungsmittel, das zweite Verriegelungsmittel und das Klettverschluss-Element B an der zur (ersten) Seitenfläche gegenüberliegenden (zweiten) Seitenfläche angeordnet sind.The invention relates to a kit consisting of two identical plate-shaped, rectangular floor panels, each comprising:

• a tread,
• a base surface opposite the tread surface,
• a wearing surface having the tread, of a lower layer opposite the wear layer, having the base surface, and a core layer arranged therebetween, wherein the wear layer is delimited by an abutment surface running perpendicular to the tread surface,
• two mutually parallel frontal, narrow side surfaces and two remaining extending in the longitudinal direction, also mutually parallel side surfaces, wherein all side surfaces are limited by the tread surface and base surface,
• at least one pair of blocking means incorporated on the side surfaces of the floor panel and compatible with each other in the laying condition, with which the floor panel faces an adjacent one Floor panel can be fixed at least in a laying plane,
• wherein the one blocking means has a leg projecting beyond the abutment surface and terminating in a lip directed onto the wear layer,
• the other blocking means has a groove machined on the core layer into which the lip of the adjacent floor panel engages and which merges into the header,
• at least one pair of hook-and-loop fastener elements which are arranged on the floor panel and on the adjacent floor panel and with which the floor panel can be fixed relative to the adjacent floor panel at least perpendicular to the laying plane,
• a first, formed in the material of the floor panel, additional locking means and
• at least a second, in the material of the floor panel formed, with the first cooperating additional locking means, wherein the first or second additional locking means in the installation state is linearly deformed under the action of compressive force of the second or first additional locking means,
• the two additional locking means stabilize a connection formed in the laying condition by the hook-and-loop fastener elements (A; B),

wherein the first blocking means, the first locking means and the hook and loop element A are arranged on the (first) side surface and the other blocking means, the second locking means and the Velcro element B are arranged on the (second) side surface opposite to the (first) side surface ,

A kit of the type mentioned is out WO 2007/067789 A2 known. The floor panels each include a first blocking means in the form of a projecting lip extending into a lip, and a second blocking means in the form of a groove bounded by a header for receiving the lip. In order to increase the friction, the contact surfaces of the floor panels may be provided with a number of small grooves and protrusions. In addition, a hook and loop fastener is provided, the mutually acting Velcro straps can be arranged on the leg and on the head piece. A disadvantage of the construction is that it can not ensure sufficient stability of the panel connection.

The object of the invention is to design a kit of two identical, plate-shaped, rectangular floor panels with profiled side surfaces, the floor panels are equipped with simple technical means that make it possible to give the panel connection, especially in particularly demanding designs, better stability ,

• das erste zusätzliche Verriegelungsmittel durch eine an der Kernschicht schräg verlaufende ebene, erste Wandfläche gebildet ist, die - von der senkrecht zur Trittfläche verlaufenden Stoßfläche ausgehend - sich zwischen einer Nutzschicht und einer Unterschicht erstreckt und an oder oberhalb der Unterschicht gegenüber der Stoßfläche zurückversetzt ist
• das zweite zusätzliche Verriegelungsmittel eine scharfe Kante aufweist, die über eine Stoßfläche der Nutzschicht um einen Betrag hinausragt und gegen die geneigte Wandfläche des benachbarten Fußbodenpaneels drückt, wobei die Kante sich an einem der Unterschicht zugewandten, trapezförmigen Kopfstück befindet und durch eine an der Kernschicht angeordnete, schräge Wandfläche des Kopfstücks und seine der Unterschicht zugewandte, ebene Oberfläche, an der das Klettverschluss-Element befestigt ist, gebildet ist.

This object is achieved by a kit of the type mentioned in the preamble, in which

• the first additional locking means is formed by a planar, first wall surface which runs obliquely on the core layer and extends between a wear layer and a lower layer starting from the abutment surface perpendicular to the tread surface and is set back at or above the lower layer opposite the abutment surface
• the second additional locking means has a sharp edge which projects beyond an abutment surface of the wear layer by an amount and presses against the inclined wall surface of the adjacent floor panel, the edge being on a trapezoidal head facing the underlayer and being disposed through a core layer, sloping wall surface of the head piece and its lower layer facing, planar surface on which the hook-and-loop fastener element is attached, is formed.

As is known, hook-and-loop fasteners can be used both as quick-fasteners in technical areas and in households. It has been found that a floor covering made of velcro fasteners interconnected floor panels is flat and sufficiently stable, i. H. virtually remains free of play even with certain manufacturing tolerances. The connection of two floor panels by means of Velcro fasteners is sufficiently strong and durable. In addition, the joined floor panels can be easily detached from each other.

Another advantage is a footfall sound-absorbing effect of attached to the floor panels Velcro elements to see. The Velcro elements contribute to the annoying, occurring when running crackling noise avoided or restricted.

The elements called floor panels can also be laid on walls, ceilings and facades. The term "floor panel" is therefore not to be understood as limiting a floor installation.

The hook and loop fastener elements may each comprise a pair of velcro and mushroom bands or velor and crochet ribbons. The taped to the floor panels tapes may consist of polyethylene, nylon, polyvinyl chloride, especially polyester. When joining the floor panels preferably Velcro and mushroom tapes are used because they are suitable for heavy loads.

The term "mushroom ribbon" is also intended to encompass header-like, hook-like, flap-like head elements that may have a double J-shape, a polygonal, particularly triangular shape, a palm tree shape, and other shapes.

Velcro and mushroom tapes marketed by VELCRO Inc., Manchester, USA, are particularly suitable for use in the floor panels according to the invention. The VELCRO tapes selected for the floor panels are thin, flexible, durable and have a very good closing performance.

Because of their ease of use, self-adhesive tapes are preferably selected, the use of which requires only the peeling off of a protective paper and a firm pressing on the floor panel.

The self-adhesive VELCRO tapes are semi-permanent adhesive bonds, ie those that are suitable for a few closing cycles. With the pressed-on Velcro and mushroom bands, there is virtually no loss of holding power over time, since substantially no closing cycles of the hook-and-loop fastener are provided. A noticeable loss of holding power can normally only occur after several, for example after 30 closing cycles. This is not to be expected with the laid floor panels.

In the case of the floor panels according to the invention, the VELCRO tapes (velcro and mushroom tapes) at the same time perform other functions than just the production of a mechanical hook-and-loop fastener. For example, they ensure increased sound absorption. They are permanently impregnated and have a water-repellent surface that dries quickly. They are not susceptible to small insects because they are made of synthetic polyester fibers. If the floor panels are used to create floor coverings in sanitary facilities or in hospitals, it is advisable to equip the velcro elements with antibacterial properties.

The Velcro elements may be attached to the longitudinal side surfaces and / or to the narrow side surfaces of the floor panels. Thus, they serve both in the longitudinal and in the transverse direction of the panel arrangement as holding elements.

The floor panels according to the invention may be made of wood, wood-based material, plastic or metal, in a multi-layered or solid version.

Preferably, a three-layer, combined embodiment of wood and wood-based material is selected, which includes a wear layer, a middle core layer and a bottom or bottom layer. In this case, the wear layer may be delimited with abutting surfaces running perpendicular to the tread surface. These impact surfaces or joints can reach up to the tread surface and form an edge there. The edge can also be beveled or slightly or strongly rounded in such a way that the laid floor panels form a pattern of visible, parallel to each other, the grooves imitating, funnel-shaped grooves. This embodiment of the wear layer can facilitate the cleaning and dedusting of the grooves mimicking the joints.

Although the connection of two floor panels by means of Velcro fasteners is sufficiently strong, it is proposed, however, to use extra locking means for particularly demanding designs, which provide for a stabilization of the resulting compound.

Thus, additional, stabilizing locking means can be used, which are incorporated in the material of the floor panel, in particular on the core layer and which are subject in the laying state under the action of compressive force of one or the other locking means of a linear deformation. As a linear deformation should be understood a straight, parallel to the Velcro element extending deformation of the core layer.

The first additional locking means is formed by a wall surface portion sloping at the core layer, which on the side surface between the wear layer and the Bottom layer is arranged and set back on or above the bottom layer opposite the impact surface. The second, with the first cooperating additional locking means is formed by at least one sharp edge which protrudes over the abutment surface of the wear layer by a small amount and presses in the laying state against the inclined wall surface of the adjacent floor panel.

Said sharp edge is arranged on a trapezoidal projection directed towards the bottom layer. Preferably, the edge is formed by an inclined wall surface of the projection arranged on the core layer and its flat surface facing the bottom layer, to which the hook-and-loop fastener element is fastened. Of course, the sharp edge should be arranged parallel to the side surface course and the base surface.

The floor panel according to the invention also has known locking means in the manner of an outwardly projecting leg with lip and a groove for receiving this lip.

The lip may have in its cross-section an inverted trapezoidal shape in which the trapezoidal base is located at a free end of the lip. Accordingly, the groove may have a groove bottom wider than a clear width of the groove. Since it is difficult to push such a lip into the groove and only to realize it via the flexibility of the leg, it is proposed to round off an inner edge of the lip, so that a correspondingly inclined groove flank can slide over the resulting rounding.

Of great advantage is that over Velcro interconnected floor panels have improved sound insulation. By conventional and additional locking means, such as linear deformation, a stable position can be secured in all directions, in particular perpendicular to the laying plane.

Finally, the invention also relates to an existing flooring panels of the type mentioned above existing surface covering. The surface covering is preferably a floor, but can also be a wall or ceiling paneling.

Fig. 1

ein Fußbodenpaneel gemäß Erfindung, in einem Schnitt durch seine Schmalseiten, jedoch ohne Klettverschluss-Elemente;

Fig. 2

ein vergrößertes Detail einer Verbindung zweier Fußbodenpaneele gemäß Fig. 1 über Klettverschluss-Elemente, mit angedeutetem Verformungsbereich;

Figuren 3a und 3b

die Fußbodenpaneele gemäß Fig. 2 vor ihrer Zusammenfügung, jeweils in einer vergrößerten Darstellung;

Fig. 4

die in Fig. 2 gezeigten Fußbodenpaneele während der Verlegung, in einer perspektivischen Ansicht;

Fig. 5

eine von der Fig. 3 etwas abweichende Ausführungsform der Fußbodenpaneele, vor ihrer Verbindung miteinander;

Fig.6

ein Fußbodenpaneel gemäß Erfindung in Draufsicht auf seine Flachseite;

Embodiments of the invention are explained in more detail with reference to the drawing. The figures show:

Fig. 1

a floor panel according to the invention, in a section through its narrow sides, but without Velcro elements;

Fig. 2

an enlarged detail of a compound of two floor panels according to Fig. 1 via Velcro elements, with indicated deformation range;

FIGS. 3a and 3b

the floor panels according to Fig. 2 prior to their assembly, each in an enlarged view;

Fig. 4

in the Fig. 2 shown floor panels during installation, in a perspective view;

Fig. 5

one of the Fig. 3 something different Embodiment of the floor panels, before their connection with each other;

Figure 6

a floor panel according to the invention in plan view of its flat side;

• Die "Trittfläche" entspricht der sich nach der Verlegung ergebenden Oberseite der Fußbodenpaneele, die die Nutzschicht ausmacht;
• Die "Basisfläche" ist die der Trittfläche gegenüberliegende Unterseite des Fußbodenpaneels;
• Ein "Klettverschluss-Element" bedeutet ein Hakenband, ein Pilzband oder Veloursband bzw. Flauschband; vergl. hierzu WIKIPEDIA-Erläuterung "Klettverschluss": "Der Klettverschluss ist ein textiles, fast beliebig oft zu lösendes Verschlussmittel, das auf dem Prinzip von Klettenfrüchten beruht. Es besteht in der typischen Form aus zwei Nylonstreifen, wovon einer Widerhäkchen, der andere Schlaufen hat. Zusammengepresst ergeben sie einen haltbaren Schnellverschluss." Klettverschlüsse aus verschiedenen Materialien und für verschiedene Beanspruchungen werden z. B. angeboten von der Firma VELCRO Inc., Manchester, USA. Es lassen sich hierbei u.a. folgende Kombinationen unterscheiden: Haken- und Flauschband, Pilz- und Veloursband, Pilz- und Flauschband. Je nach betrieblicher Anforderung lassen sich unterschiedliche Klettverschluss-Elemente der vorgenannten Art verwenden.
• "Klettverschluss" ist eine Verbindung insbesondere zweier Fußbodenpaneele, die durch Zusammenfügen der miteinander wirkenden Klettverschluss-Elemente entstanden ist;
• "Stoßfläche" bzw. "Stoß" bezieht sich in vorliegendem Fall auf zwei senkrecht zur Tritt- bzw. Basisfläche gerichtete, miteinander in Kontakt stehende Flächen der Seitenflächen, insbesondere der Nutzschicht;
• "Gegenpaneel" bezieht sich auf ein Fußbodenpaneel, das mit einem erstbeschriebenen Fußbodenpaneel zusammenwirkt;
• "Blockierungsmittel" bezieht sich auf parallel zur Verlegebene wirkende, herkömmliche Kupplungselemente, wie Nut und Lippe;
• "Rastverbindung" bezieht sich in vorliegendem Fall auf die Fügung zweier Fußbodenpaneele, bei denen an einer geringfügig über die Stoßfläche ragenden Rastnase eine am Gegenpaneel angeordnete Stufe hakt. Die Rastverbindung wirkt senkrecht zur Verlegeebene;
• "Seitenfläche" ist die auf eine durch die Tritt- und Basisflächen begrenzte und von deren Kanten ausgehende Fläche des Fußbodenpaneels.

For better understanding of the embodiments, the following terms are explained as used in connection with the drawings:

• The "tread surface" corresponds to the resulting after laying top of the floor panels, which makes up the wear layer;
• The "base surface" is the bottom surface of the floor panel opposite the tread surface;
• A "Velcro fastener" means a hook tape, a mushroom tape or a velor tape; see WIKIPEDIA explanation "Velcro": "The Velcro is a textile, almost arbitrarily often to be solved closure means, which is based on the principle of burdock fruits.It consists in the typical form of two nylon strips, of which one Widerhäkchen, which has other loops Clenched, they make a durable quick release. " Velcro fasteners made of different materials and for different demands are z. Offered by VELCRO Inc., Manchester, USA. Among other things, the following combinations can be distinguished: hook and loop tape, mushroom and velor tape, mushroom and loop tape. Depending on the operational requirement, different Velcro elements of the aforementioned type can be used.
• "Velcro" is a compound in particular two floor panels, which has arisen by joining the cooperating Velcro elements;
• "Impact surface" or "impact" refers in the present case to two perpendicular to the tread or base surface directed, mutually contacting surfaces of the side surfaces, in particular the wear layer;
• "Counter panel" refers to a floor panel that interacts with a first-described floor panel;
• "Blocking agent" refers to parallel laying elements, conventional coupling elements such as groove and lip;
• "Locking connection" in the present case refers to the joining of two floor panels, in which a catch arranged on the counter panel hooks on a latching lug projecting slightly beyond the abutment surface. The latching connection acts perpendicular to the laying plane;
• "Side surface" means the surface of the floor panel bounded by the footboard and base surfaces and extending from their edges.

Terms such as "top", "top", "bottom", "bottom", "bottom", "below", "above" refer to the floor panels laid on a horizontal surface, as shown in the drawing ,

In Fig. 1 is a floor panel 100 and 100 'is shown, the rectangular in plan view of its tread surface 11 (see. Fig. 6 ) and thus has two elongate side surfaces 1.1, 2.1 and two lying on the narrow sides side surfaces 1.2, 2.2. The floor panel is in Fig. 1 in longitudinal section CC according to Fig. 6 shown.

The floor panel 100, 100 'made of high quality wood material has in each case a core layer 3, an upper wear layer 5 and an underlayer 7. Other layer structures and materials are possible. The upper wear layer 5 is defined by abutting surfaces 4.1, 4.2 sloping downwards perpendicular to the tread surface 11 (cf. Fig. 2 ) limited.

The Figures 2 . 3a . 3b and 4 show two similar, joinable floor panels 100, 100 ', which may be referred to as floor panel and Gegenpaneel.

In each case, the opposite narrow sides (side surfaces 1.1, 2.1) of the floor panels 100, 100 'are equipped with different headers, which are joined together when building the floor. Thus, the floor panel 100 or 100 'has a blocking means 50 which has a leg 10 projecting beyond the abutment surface 4.1 and terminating in an upwardly directed lip 14. A blocking means 60 arranged on the opposite side has a trapezoidal groove 15 integrally formed on the core layer 3. In the groove 15, the lip 14 of the Gegenpaneels 100 'engages (see. Fig. 2 ).

The groove 15 is adjacent to a trapezoidal head piece 9 (see. Fig. 3b ), the downwardly directed surface 13 of which is a hook-and-loop fastener element B in the form of a VELCRO fleece band wearing. Before applying the self-adhesive Velcro tape, the surface 13 was carefully dedusted.

The surface 13 of the head piece 9 merges into an inclined wall surface 16 to form a sharp edge 8, which protrudes over the impact surface 4.1 by a small amount x. The amount x is in the range of 0.2 to 0.4 mm. The inclined wall surface 16 with the sharp edge 8 represents an additional locking means 40.

A cooperating with the additional locking means 40 additional locking means 30 is detailed in Figures 2 and 3a shown. The additional locking means 30 is formed by a wall surface 6, which also runs obliquely on the side face 1.1, and which is set back in its lowest area opposite the abutment face 4.1 and merges there into the leg 10. The wall surface 6 forms with the leg 10 and an inner wall 33 of the lip 14 has a recess 35 for receiving the head piece 9. On the leg 10, a Velcro fastener A in the form of a self-adhesive VELCRO mushroom tape is glued.

As the Fig. 3a shows, the wall surface 6 and the inner wall 33 of the lip 14 are inclined by an angle β with respect to a vertical V. The angle β is about 3 °. The vertical V is perpendicular to a base surface 12 and the tread surface 11 and coincides with the impact surface 4.1. The inclined position of the wall surface 6 and the inner wall 33 corresponds to the outline of the in Fig. 3b illustrated head piece. 9

When joining the two floor panels 100, 100 ', on the one hand, a conventional connection 36 is formed (cf. FIGS. 4 and 2 ) which is reinforced by the interlocked coupling elements, ie lip 14 and groove 15, to the second a connection 20 (Velcro) and the third an additional, the hook and loop stabilizing locking in the form of a linear deformation region 32. The deformation region 32 is in Fig. 2 schematic with a circle and in Fig. 4 indicated with a parallel to the lip 14 extending straight line.

When swinging down (cf. Fig. 4 ) of the floor panel 100 ', the head piece 9 is pressed into the recess 35 of the Gegenpaneels until the Velcro A, B interlock with each other, the sharp edge 8 slides over the inclined wall surface 6 and presses sufficiently strong against this wall surface in the final stage of pivoting down, to form the deformation region 32 due to the material elasticity of the core layer 3.

Finally, in Fig. 6 two identical floor panels 400, 400 'are shown, which essentially correspond to the structure of the floor panels 100, 100'. However, the hook-and-loop fastener element A (mushroom band) is embedded flush in the leg 10, so that the wall surfaces 6 and 16 are higher in comparison to the total height of the panel than in the embodiments with attached Velcro element A.

LIST OF REFERENCE NUMBERS

1.1, 1.2

side surface

2.1, 2.2

side surface

3

core layer

4.1, 4.2

abutting face

5

wear layer

6

wall surface

7

underclass

8th

sharp edge

9

headpiece

10

leg

11

tread

12

footprint

13

surface

14

lip

15

groove

16

wall surface

17

clear width

18

recess

19

clear width

20

Connection (Velcro)

21

ground

24

lip

25

groove

26

groove bottom

28

width dimension

29

inner edge

30

locking means

32

deformation zone

33

inner wall

35

recess

36

connection

39

headpiece

40

locking means

50; 60

blocking agents

A

Velcro tape (mushroom tape)

B

Velcro tape

e

laying plane

V

vertical

β

angle

x

amount

100, 100 '

floor panel

200, 200 '

floor panel

400, 400 '

floor panel

Claims (8)

1. Construction set of two structurally identical, plate-shaped, rectangular floor panels (100, 100'; 200, 200'; 400, 400') which each comprise:

   - a stepping surface (11),

   - a base surface (12) opposite the stepping surface (11),

   - a wear layer (5) comprising the stepping surface (11) and consisting of a sublayer (7), which is opposite the wear layer (5) and comprises the base surface (12), and a core layer (3) arranged therebetween, wherein the wear layer (5) is delimited by an abutting surface (4.1) which extends perpendicularly to the stepping surface (11),

   - two mutually parallel, end-side, narrow lateral surfaces (1.1, 2.1) and two other, likewise mutually parallel lateral surfaces (1.2, 2.2) which extend in the longitudinal direction, wherein all the lateral surfaces (1.1, 2.1; 1.2, 2.2) are delimited by the stepping surface (11) and base surface (12),

   - at least one pair of mutually compatible locking means (50; 60) which are incorporated in the lateral surfaces of the floor panel, cooperate in the laying state and by means of which the floor panel (100, 200, 400) can be fixed with respect to an adjacent floor panel (100'; 200'; 400') at least in a laying plane (E),

   - wherein the first locking means (50) has a limb (10) protruding beyond the abutting surface (4.1) and running out into a lip (24) directed towards the wear layer (5),

   - the other locking means (60) has a groove (15; 25) incorporated in the core layer (3) and into which the lip (14; 24) of the adjacent floor panel engages and which transitions into the headpiece (9),

   - at least one pair of mutually adhering hook-and-loop fastener elements (A; B) arranged on the floor panel (100, 200, 400) and on the adjacent floor panel (100'; 200'; 400'), by means of which the floor panel (100, 200, 400) can be fixed with respect to the adjacent floor panel (100'; 200'; 400') at least perpendicularly to the laying plane (E),

   - a first additional latching means (30), which is formed in the material of the floor panel (100, 200, 400), and

   - at least one second additional latching means (40) which cooperates with the first latching means and is formed in the material of the floor panel (100'; 200'; 400'), wherein the first or second additional latching means (30; 40) is linearly deformed in the laying state under the effect of compressive force of the second or first additional latching means (30; 40),

   - the two additional latching means (30; 40) stabilise a connection (20) which, in the laying state, is formed by the hook-and-loop fastener elements (A; B),

   wherein the first locking means (50), the first latching means (30) and the hook-and-loop fastener element (A) are arranged on the lateral surface (1.1) and the other locking means (60), the second latching means (40) and the hook-and-loop fastener element (B) are arranged on the lateral surface (2.1) opposite the lateral surface (1.1),
   characterised in that

   - the first additional latching means (30) is formed by a planar, first wall surface (6) which extends obliquely on the core layer (3) and which - starting from the abutting surface (4.1) extending perpendicularly to the stepping surface (11) - extends between the wear layer (5) and the sublayer (7) and is set back with respect to the abutting surface (4.1) at or above the sublayer (7),

   - the second additional latching means (40) comprises a sharp edge (8) which protrudes beyond an abutting surface (4.2) of the wear layer (5) by an amount (x) and, in the laying state, presses against the inclined wall surface (6) of the adjacent floor panel, wherein the edge (8) is located on a trapezoidal head piece (9; 39) facing the sublayer (7) and is formed by an oblique wall surface (16) of the head piece (9; 39) arranged on the core layer (3) and by its planar surface (13) which faces the sublayer (7) and to which the hook-and-loop fastener element (B) is fastened.
2. Construction set as claimed in claim 1, characterised in that the sharp edge (8) is arranged in parallel with the lateral surface progression and with the base surface (12).
3. Construction set as claimed in claim 1, characterised in that

   - the groove (25) has a groove base (26), whose width dimension (28) is greater than a clear width (17) of the groove (25),

   - and the lip (24) tapers in the direction of a sublayer (7) such that a recess (18) is formed by the oblique wall surface (6) and the limb (10) supporting the lip (24), the headpiece (9; 39) engaging into the recess in the laying state, wherein the recess (18) has a base (21) which is wider than a clear width (19) of the recess (18).
4. Construction set as claimed in claim 3, characterised in that the lip (24) comprises a rounded inner edge (29).
5. Construction set as claimed in any one of the preceding claims, characterised in that the floor panel is solid.
6. Construction set as claimed in any one the preceding claims, characterised in that the hook-and-loop fastener elements (A, B) include a pair of frieze and mushroom tapes or hooklet tapes.
7. Construction set as claimed in any one of the preceding claims, characterised in that the hook-and-loop fastener elements (A, B) are fixedly or detachably attached to the floor panel.
8. Surface covering, consisting of assembled floor panels of construction sets as claimed in any one of claims 1 to 7.

Images