EP2333195B1 - Floor made of floor panels with separate connection components - Google Patents

Description

• eine Nutzschicht,
• eine Bodenschicht,
• eine zwischen der Nutzschicht und der Bodenschicht liegende Kernschicht aus Holzwerkstoff,
• zwei zueinander parallel verlaufende, erste profilierte Seitenflächen und zwei zueinander parallel verlaufende, gegenüber den ersten senkrecht angeordnete zweite profilierte Seitenflächen, die jeweils von einer Oberfläche und einer gegenüber liegenden, unteren Fläche des Fußbodenpaneels begrenzt sind,

wobei die sich benachbarten Fußbodenpaneele mit wenigstens einem separaten, in wenigstens eine Nut wenigstens teilweise einlegbaren oder einpressbaren, mechanischen Blockiermittel ausgestattet sind, mit dem die Verschiebung der Fußbodenpaneele gegeneinander zumindest in einer vertikalen Richtung, d. h. senkrecht zur Bodenschicht blockiert ist,

• wobei das mechanische Blockiermittel ein in eingebautem Zustand längs der Seitenfläche eines Fußbodenpaneels geradlinig verlaufendes, eine Rastnase aufweisendes Profil ist,
• und wobei die profilierte Seitenfläche eine innerhalb der Kernschicht angeordnete, etwa quadratische Nut und einen unteren, über die Nut ragenden Verriegelungsarm aufweist.

The invention relates to a floor consisting of a plurality of rectangular, plate-shaped floor panels, each comprising:

• a wear layer,
• a soil layer,
• a core layer of wood-based material lying between the wear layer and the ground layer,
• two mutually parallel, first profiled side surfaces and two mutually parallel, with respect to the first vertically arranged second profiled side surfaces, each bounded by a surface and an opposite, lower surface of the floor panel,

wherein the adjacent floor panels are equipped with at least one separate, in at least one groove at least partially insertable or pressable, mechanical blocking means with which the displacement of the floor panels against each other at least in a vertical direction, that is blocked perpendicular to the soil layer,

• wherein the mechanical blocking means is a profile extending in a straight line along the side surface of a floor panel, having a latching nose,
• and wherein the profiled side surface has an approximately square groove disposed within the core layer and a lower locking arm projecting beyond the groove.

WO 2009/066153 A2 describes floor panels which are mateable with each other via resilient connectors, wherein the substantially V-shaped connector with its V-vertex is rotatably disposed in a semicircular trough of a groove of the floor panel. The disadvantage is that the trough has a sharp free side edge, which is exposed to mechanical damage during panel production, storage and panel laying. In addition, manual or mechanical press-fitting of the connector into the groove can also damage the well. According to others, in FIGS. 22 and 23 In embodiments shown, the connectors have compressible webs that relax after the floor panels have been assembled so that the connector resumes its original shape. According to another embodiment, represented by Fig. 33, the connector has a pivotable wall projecting over the groove, which yields during the lowering of the counter panel and then relaxes. The disadvantage is that the connector can not have a good grip in the groove and thereby can fall out of the groove before joining the floor panels.

Out WO 2008/004960 a panel connection is known in which a separate blocking agent is used. The blocking agent is a boomerang-shaped profile, which is pressed into a round groove made on the side surface of the floor panel. The profile has a slightly dimensioned projection, which is supported on an equally slightly sized groove in the transition region of the round groove to an outwardly projecting leg. The projection also represents an axis of rotation of the profile. A relative rotational movement of a thicker end of the profile relative to the groove in which the projection is seated is caused by lowering of the counter panel, which presses against a second, thinner end of the profile. In the locking state, the profile engages with its thicker free end in a groove of the adjacent floor panel (Gegenpaneel). A disadvantage of the known solution is that the seat of the profile does not guarantee a satisfactory grip for the profile, so that the profile can easily fall out of the groove before and during assembly.

Of the DE 33 43 601 A1 is to remove a floor covering, which is composed of rectangular floor panels made of wood, wood chip or fiber material, at the successive side surfaces separate blocking means in the form of profile elements are located. The profile elements have obliquely arranged, barb-like acting profile webs, with which the position of the floor panels can be set in the vertical direction. A disadvantage of the known floor covering that the profile elements are designed as two parts and are complicated in shape. In addition, the profile elements covered by the wear layer project over the lower surface of the bottom layer in the direction of the ground.

US 2003/094230 A1 shows floor panels whose side edges are coated at predetermined portions with an adhesive, which is activated by applying a liquid. Figures 3e and 3f show one on the back of the floor panels insertable, separate connector comprising a bottom part and a spiky from the bottom part center web. The opposite of the central web mirror-symmetrically constructed bottom web has two lips, which engage in the inserted state in the bottom grooves of the floor panels. The tip of the center bar comes into contact with inclined side surfaces of the two floor panels. Overall, the panel connection is constructed mirror-symmetrically to the interface of the two floor panels.

At the writing US 2008/110125 A1 These are, inter alia, double T-shaped separate connectors whose T-bars each pass into a pivotable, resilient wall. The one wall of the connector is pressed during the lowering of the Gegenpaneels against a groove bottom and the other against the lower T-bar. The entire connector shifts within the groove towards the groove bottom. After joining the floor panels, the connector returns to its original position. The other embodiments are known per se, a rectangular, on one side beveled cross-section having spring elements.

The document DE 10 2007 032 885 A1 describes a panel connector equipped with a separate connector, wherein the movable connector snaps in the joining movement behind a locking edge formed on the side edge of the counter panel. Arranged between the connector and a groove base is a compression element acting in the direction of the connector, which is reversibly compressible during the locking process by the connector. The disadvantage is that two separate spring elements are pressed into the groove one after the other. This increases the cost of the manufacturing process and increases the workload during assembly.

The document WO 00/20706 A1 is a similar to US 2003/094230 A1 mirror-symmetrically constructed panel connection, in which the connector engages in the inserted state as well with its upwardly directed lips in the bottom grooves of the floor panels. The upwardly projecting, lying between the lips and locking lugs having, resilient webs are also arranged mirror-symmetrically to the parting plane of two floor panels. Optionally, joint elements contacting the connector are provided. Overall, the panel connection is constructed mirror-symmetrically to the interface of the two floor panels or joint element.

At the document US Pat. No. 3,627,362 A these are connector elements in profile shape that are as long as the building panel to be connected. The plug elements can be made of metal, such as aluminum, or of plastic. With the exception of steel clamp-type connector elements which are in Figures 5 and 10 have been shown, all connectors also have a mirror-symmetrical structure.

EP 1 978 179 A1 shows a system for connecting and locking two floor panels using a separate connector, called plastic insert, which has a substantially rectangular, U-shaped cross-section with lying inside, resilient strut, which connects a U-web of the plastic insert with its central web. The U-bar is arranged vertically or diagonally opposite the central bar and shows with its free end on the back of the floor panel, which is provided with upstanding lip.

The object of the invention is to design a generic floor, the floor panels together with each other via simple separate, made of a piece of material and safer seated in corresponding grooves blocking agent are releasably joined together.

• die Rastnase des in der Nut untergebrachten Profils vor der Verriegelung der Fußbodenpaneele miteinander vollständig über eine Stoßfläche des Fußbodenpaneels hinausragt,
• die Rastnase eine Stützfläche aufweist, die im Verriegelungszustand gegenüber der Nutz- oder Bodenschicht parallel oder geringfügig geneigt angeordnet ist,
• die Rastnase im Verriegelungszustand in wenigstens eine in der Kernschicht eines benachbarten Fußbodenpaneels eingebrachte, zur Rastnase kompatible Nut derart eingreift, dass die Stützfläche der Rastnase gegen eine der Bodenschicht zugewandte Nutflanke der besagten Nut drückt.

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

• the locking lug of the profile accommodated in the groove protrudes completely beyond an abutment surface of the floor panel before locking the floor panels together,
• the latching lug has a support surface which, in the locking state, is arranged parallel or slightly inclined with respect to the useful or bottom layer,
• the locking lug in the locked state in at least one introduced in the core layer of an adjacent floor panel, the locking lug compatible groove engages such that the support surface of the locking lug against a bottom layer facing groove edge of said groove presses.

The profiles are essentially L-profiles and trough-shaped profiles, preferably those whose cross-section resembles the capital letters C, L, M, U, W.

The outwardly projecting locking lug can be formed as an extension of a leg of the C or U-profile. These profiles are intended in principle for insertion into the grooves of already laid floor panels. In the U, V or L profiles, the latch may be pointing outwardly at a free end of a U, V or L leg, d. H. be arranged perpendicular to the leg.

Preferably, the locking lug on a sliding surface, which allows the profile when lowering the located in angular position second floor panel in a groove of already laid, first floor panel "automatically" to insert.

Accordingly, a profile has proven to be particularly advantageous, which is equipped with a detent, the sliding surface - in the profile cross-section - rounded or curved, whereby the pressing in of the detent can be facilitated in a corresponding receiving groove of the Gegenpaneels.

When laying floor panels located in angular position floor panel can press against said sliding surface until the locking lug is completely pushed under spring force into the groove or a cavity of the laid floor panel. After lowering the floor panel, the detent and optionally a resilient element of the profile, which carries the latch, moves into corresponding groove of the floor panel.

In this case, the locking lug and / or a foot of the profile may be made stiffer than the legal material of the profile.

The M, W and U profiles can also be provided with at least one movable detent which is disposed at a free end of a leg or web.

The groove, in which engages the latch can be provided with a stabilizing cover made of plastic, resin or metal.

The profiles forming the blocking agent can be made of metal, wood material or plastic.
If the blocking agent, ie profile made of plastic, it can be cheaply provided as a mass-produced.

The profiles according to the invention are essentially intended for the narrow edges of the floor panels. However, the floor panels can also be integrated in the longer side surfaces if they are adapted to the separate profiles accordingly.

The L, U, M or W profiles can be pressed into the existing groove of the floor panel manually or mechanically or with the aid of a machine. The provided with the profiles floor panels can be stored and distributed in this form. This is particularly facilitated by the fact that the profiles sit safely in the grooves and have virtually no chance to selbstätig fall out of the groove.

Further details and advantages of the invention are explained in more detail with reference to the drawing.

Figuren 1 bis 4

Abschnitte eines U-Profils mit und ohne Unterbrechungen, jeweils in einer perspektivischen Ansicht;

Fig. 5

Zusammenfügen zweier Fußbodenpaneele an ihren Schmalkanten, in einer perspektivischen Ansicht;

Figuren 6 bis 11

Verwendung der U-Profile bei unterschiedlichen Profilierungen der Seitenflächen, jeweils in einem Schnitt durch zwei miteinander gekoppelte Fußbodenpaneele,

Figuren 13 und 14

ein V-Profil, eingesetzt als vertikales Blockiermittel, ebenso jeweils in einem Schnitt durch zwei miteinander verbundene Fußbodenpaneele;

Fig. 14

ein M-Profil in seinem Querschnitt;

Fig. 15

ein W-Profil in seinem Querschnitt;

Fig. 16

das M-Profil gemäß Fig. 14, in einer perspektivischen Ansicht;

Figuren 17 und 18

das M-Profil gemäß Fig. 14, ohne und mit Unterbrechungen, in einer Draufsicht auf seine muldenförmige Fläche;

Figuren 19 bis 22

zwei Fußbodenpannele vor und nach dem Verbinden, mit eingesetztem M-Profil gemäß Fig. 14, jeweils in einem Schnitt durch Fußbodenpaneele;

Fig. 23

zwei miteinander gekoppelte Fußbodenpaneele mit eingesetztem L-Profil mit Rastnase, in einem Schnitt durch Fußbodenpaneele;

Fig. 24

ein vergrößertes Detail der Verbindung gemäß Fig. 23;

Fig. 25

einen Fußboden, zusammengesetzt aus Fußbodenpaneelen mit erfindungsgemäßem Blockiermittel, in einer perspektivischen Ansicht;

Fig. 26

Teil des Fußbodenpaneels gemäß Fig. 6 mit werkseitig eingepresstem U-Profil, als Lagerware, in einem Schnitt;

Fig. 27a

eine abweichende Ausführungsform des L-Profils gemäß Figuren 23 und 24, in einem vergrößerten Querschnitt;

Fig. 27b

das Profil gemäß Fig. 27a in einer vergrößerten, perspektivischen Ansicht;

Figuren 28a, 28b

zwei verlegte Fußbodenpaneele ohne und mit eingesetztem Profil gemäß Fig. 27, in einem schematischen Schnitt durch ußbodenpaneele;

Fig. 29

das Fußbodenpaneel gemäß Fig. 28 mit werkseitig eingepresstem Profil, als Lagerware, in einem schematischen Schnitt;

Fig. 30

Zusammenfügen zweier Fußbodenpaneele gemäß Fig. 28 an ihren Schmalkanten, in einer perspektivischen Ansicht;

Fig. 31a

eine weitere, dem Profil gemäß Fig. 27a ähnliche Ausführungsform des Profils, in einem vergrößerten Querschnitt;

Fig. 31b

das Profil gemäß Fig. 31a in einer vergrößerten, perspektivischen Ansicht.

The figures show:

FIGS. 1 to 4

Sections of a U-profile with and without interruptions, each in a perspective view;

Fig. 5

Joining two floor panels to their narrow edges, in a perspective view;

FIGS. 6 to 11

Use of the U-profiles with different profiles of the side surfaces, each in a section through two coupled floor panels,

FIGS. 13 and 14

a V-profile, used as a vertical blocking agent, also in each case in one Section through two interconnected floor panels;

Fig. 14

an M-profile in its cross section;

Fig. 15

a W profile in its cross section;

Fig. 16

the M-profile according to Fig. 14 in a perspective view;

FIGS. 17 and 18

the M-profile according to Fig. 14 with and without interruptions, in a plan view of its trough-shaped surface;

FIGS. 19 to 22

two floor panels before and after connection, with inserted M-profile according to Fig. 14 each in a section through floor panels;

Fig. 23

two coupled floor panels with inserted L-profile with latching nose, in a section through floor panels;

Fig. 24

an enlarged detail of the compound according to Fig. 23 ;

Fig. 25

a floor, composed of floor panels with inventive blocking agent, in a perspective view;

Fig. 26

Part of the floor panel according to Fig. 6 with factory-pressed U-profile, in stock, in one cut;

Fig. 27a

a different embodiment of the L-profile according to Figures 23 and 24 in an enlarged cross section;

Fig. 27b

the profile according to Fig. 27a in an enlarged, perspective view;

Figures 28a, 28b

two laid floor panels without and with inserted profile according to Fig. 27 in a schematic section through floor panels;

Fig. 29

the floor panel according to Fig. 28 with factory-pressed profile, as stock goods, in a schematic section;

Fig. 30

Assembly of two floor panels according to Fig. 28 at its narrow edges, in a perspective view;

Fig. 31a

another, according to the profile Fig. 27a similar embodiment of the profile, in an enlarged cross section;

Fig. 31b

the profile according to Fig. 31a in an enlarged, perspective view.

A simplified illustrated floor 1 is the Fig. 25 refer to. The floor 1 consists of several rectangular floor panels 10.1, 10.2, ..., 10.n, each having two mutually parallel side surfaces 11.1, 11.2 and two other, also mutually parallel side surfaces 12.1, 12.2, wherein the side surfaces 11.1, 11.2 in technical language as longitudinal edges and the side surfaces 12.1, 12.2 can be referred to as narrow edges of the floor panel.

The structure of the floor panels and their narrow sides show, for example, the Figures 5 and 9 , The floor panel 10.1, 10.2 has a wear layer 5, a bottom layer 3 and an intermediate core layer 2 of wood-based material. The utility and soil layers 5; 3 are in the present case also made of wood material, so that the whole floor panel consists of renewable resources, with only on the wear layer 5 a protective plastic film can be laminated.

The side surfaces 11.1, 11.2; 12.1, 12.2, so the longitudinal and narrow edges are bounded by a surface 4 of the floor panel and the lower surface 6.

The terms "bottom", "bottom", "top" and the like refer to floor panels laid on a horizontal surface.

The profiled side surface 12.1 has a square groove 8 arranged inside the core layer 2 and a lower locking arm 60 protruding beyond the groove 8. A lower groove flank 61 of the groove 8 extends in an upper surface 63 of the locking arm 60 to an upwardly projecting lip 62. The upper surface 63 of the locking arm 60 and the groove flank 61 lie in a common plane. Accordingly, the second side surface 12.2 has a lower groove 64, which in the assembled state of the two floor panels 10.1, 10.2 (see. Fig. 9 ) receives the lip 62.

The groove 64 merges into a projection 66 offset from the bottom layer 3. Furthermore, the side surface 12.2 has a groove 41 incorporated in the core layer 2, which groove almost adjoins the wear layer 5. Characteristic of the groove 41 are their na inclined flanks 65.1, 65.2 (see also FIGS. 6 . 10 and 11 ).

The execution according to Fig. 8 differs from the one described above ( Fig. 9 ) by a parallel to the wear layer 5 extending lower groove flank 65.2 of the locking lug 13 to be received groove 41st

According to Fig. 10 the lower projection 66 of the floor panel 10.2 passes over an inclined surface 72 in the lower groove 64, so that in the locking state with a correspondingly inclined transition surface 73 of the locking arm 60 is in contact. The structure of the locking arm 60 is already in the Figures 5 and 9 described. In this case, the lower projection 66 tapers to the outside.

A component of the connection of two floor panels together is a separate blocking agent, hereafter referred to profile, which will be described below.

In FIGS. 1, 2 . 3 and 4 is a plastic extruded U-profile 21; 21.1 and 22, 22.1 shown, consisting of a first U-leg 14, a second, the first opposite U-leg 64 and the two U-legs connecting web 55. This is located at a free end 9 of the U-leg 14 an outwardly directed, approximately trapezoidal locking lug 13. The U-profiles 21; 21.1 and 22, 22.1 are approximately square in their cross-section Q1 (except locking lug 13). Furthermore, the latching lug 13 has a lower support surface 88.1, which is arranged at a sharp angle α relative to the U-leg 14 in the relaxed state. The angle α is in the present case 80 ° and may vary slightly.

In the U-profiles 21, 22 form a surface 56 of the U-leg 64 and a surface 57 of the web 55 a sharp angle vertex 58 (see. Fig. 2 ), however, the U-profiles 21.1, 22.1 each have a rounded transition 59 of the two U-legs.

The U-profiles 22 and 22.1 according to Figures 2 and 4 have spaced-apart, gap-like interruptions 50, which divide the U-leg 14 and the locking lug 13 into a plurality of segments 70.1, ...., 70.n. The segmentation reduces the force with which the locking lug 13 is to be pressed into the groove 8.

The Fig. 5 shows an assembly of two floor panels 10.1, 10.2. First, the U-profile was factory so pressed into the groove 8, that the locking lug 13 supporting U-legs 14 is in a free, not deformed state, as shown in FIG. 37 can be seen. The locking lug 13 projects completely over an abutment surface 67 of the floor panel 10.1. The process can be mechanized or automated. In the groove 8 of the already laid floor panel 10.1 (left side of the FIG. 5 ), the U-profile 21 together with locking lug 13 is completely pressed. This was achieved by continuously pressing downwardly directed projection 66 against a sliding surface GF (see Fig. 37) when the right floor panel 10.1 is lowered over the abutment surface 67 of the floor panel 10.1. At an angle β between 40 ° and 45 ° (see. Fig. 5 ) then moves the locking lug 13 entirely in the groove 41. The floor panel 10.2 is pivoted about its longitudinal edge.

Since the material of the U-profile is resilient, the U-leg 14 supporting the latching nose 13 tends to return to its original shape. As soon as the right floor panel 10.2 is lowered, the lip 62 of the locking arm 60 engages in the groove 64 and the U-leg 14 with the locking lug 13 relaxes. As a result, the locking lug 13 engages in the groove 41 a. In this case, the lower support surface 88.1 of the locking lug 13 presses against the lower groove flank 65.2 the groove 41. In this way, the floor panels 10.1, 10.2 both in the vertical direction Z and in the horizontal direction X (see. Fig. 9 ).

• eine Kraft F1, mit der das Fußbodenpaneel 10.2 gegen die Rastnase 13 drückt,
• eine Kraft F2, mit der der die Rastnase 13 tragende U-Schenkel 14 gegen eine Stützfläche 68 (obere Nutflanke der Nut 8) des Fußbodenpaneels 10.1 drückt,
• eine Kraft F3 (Widerdruck), mit der die Stützfläche 68 des Fußbodenpaneels 10.1 gegen den U-Schenkel 14 drückt.

When locking in the vertical direction Z here play the following forces (see. Fig. 6 ) a crucial role:

• a force F1 with which the floor panel 10.2 presses against the detent 13,
• a force F2 with which the locking lug 13 carrying U-leg 14 presses against a support surface 68 (upper groove flank of the groove 8) of the floor panel 10.1,
• a force F3 (counterpressure) with which the support surface 68 of the floor panel 10.1 presses against the U-leg 14.

According to Fig. 6 For example, a surface 69 of the projecting locking arm 60 is inclined relative to the lower surface 6 of the floor panel 10. 1 and descends to the lip 62. Accordingly, the lower projection 66 of the floor panel 10.2 is also designed inclined.

In the execution according to Fig. 7 the lower groove flank 61 of the groove 8 merges into a recess 71. Accordingly, the lower projection 66 of the floor panel 10.2 is adapted to the flat recess 71.

The Fig. 11 shows a U-profile 23 which is identical to the U-profile 21, wherein in the interior of the U-profile 23 an oblique, resilient tab 53 is provided. In the locked state, the tab 53 presses against the locking lug 13 and pushes it against the groove 41st

In the FIGS. 12 and 13 a V-profile 24 is shown, the latching lug 13 supporting V-leg 16 is inclined relative to a second, perpendicular V-leg 73 is arranged. The second V-leg 73 is located on a groove bottom 74 of the groove 8. Otherwise, the floor panels 10.1, 10.2 and their narrow sides in the Fig. 10 and accordingly at the Fig. 6 described similarly. Reference numeral 15 designates a free end of the inclined V-leg 16.

The Figures 14 . 16 and 17 show an M-profile fabricated in a piece of material 25, the two legs 61, 52 and an interposed, elastic, a trough 75 forming central portion 48 has. The one leg 51 is bar-shaped and thinner than the second leg 52. The second leg 52 has three triangular, outwardly facing detents 49.1, 49.2, 49.3 and a foot 76. The uppermost, the sliding surface GF having detent 49.1 is blunted, while the other two each have a sharp tip.

In Fig. 18 an M-profile 27 is shown in plan view of its trough 75. The M-profile 27 has a plurality of the second leg 52 and the middle part 48 introduced, gap-like interruptions 50, which divide the movable part of the profile into segments 70.1, ...., 70.n.

According to both FIGS. 17, 18 is the M-profile 25; 27 rounded in plan view of its trough 75.

The use of the M-profile 25 is based on the FIGS. 19 to 22 explained. According to Fig. 19 the M-profile 25 is factory-pressed into the existing groove 8 of the floor panel 10.1 by means of a machine, not shown, such that the sliding surface GF of the uppermost detent 49.1 projects beyond the abutment surface 67 and is in a relaxed state. When lowering the floor panel 10.2 presses its downward, outwardly tapering projection 66 against said sliding surface GF, until the leg 52 of the M-profile 25 is completely pushed into the groove 8 of the floor panel 10.1. This is done in the same way as with the Fig. 5 has been described. Since the middle part 48 is resilient, the leg 52 moves with its detents 49.1, 49.2, 49.3 in the grooves 7.1, 7.2, 7.3 of the adjacent floor panel 10.2 (see. Fig. 20 ). The locking lugs 49.1, 49.2, 49.3 have lower support surfaces 88.1, 88.2, 88.3, which come in the locked state with the lower groove flanks 89.1, 89.2, 89.3 of the grooves 7.1, 7.2, 7.3 in contact. The movement of the leg 52 facilitates the foot 76, which is designed as a guide element.

The execution according to Figures 21 and 22 includes the opposite of the lower groove flank 61 lowered recess 71 and the recess compatible to the lower projection 66 of the floor panel 10.2.

The Fig. 15 shows a W-profile 26, comprising two legs 51, 52, locking lugs 49.1, 49.2, 49.3 on the leg 52 and the middle part 48. The detent 49.1 also has the sliding surface GF. The middle part 48 points upwards. The W-profile 26 can be used in the same manner as the M-profile 25.

An L-profile 28 is the Figures 23 and 24 refer to. At a free end 17 of a perpendicular (in the locked state) to the bottom layer 3 standing L-leg 19 a rounded latching nose 83 is arranged. The L-profile 28 is pushed with its second L-leg 78 in an inserted in the core layer 2 groove 79.

The L-profile 28 is used in the following manner: The L-profile 28 is inserted at the factory with its L-leg 78 into the groove 79 by means of a machine, not shown.

When lowering the floor panel 10.2 presses the downwardly directed projection 66 with its bevel 81 against said sliding surface GF of the locking lug 83 to the L-leg 19 is completely pushed under the wear layer 5 and arranged at the between the wear layer 5 and the bottom layer 3 Slanted surface 54 is supported or inclined in the direction of inclined surface 54. Since the detent 83 is rounded, this is easier after. The inclined position of the L-leg 19 is with dashed lines contour (see. Fig. 24 ) designated. The partial section around the profile 28 should make the details easier to recognize. Characterized in that the L-leg 19 is resilient, this moves with its locking lug 83 in a correspondingly adapted groove 82 of the adjacent floor panel 10.2.

The Figures 27a and 27b show a particularly preferred L-profile 85, which is a further development of the in Figures 23 and 24 shown L-profile 28 is. The L-profile 85 has the L-leg 19 and the second L-leg 78 and the said rounded detent 83, which is arranged at the free end of the L-leg 19. However, the second L-leg 78 merges into a solid, approximately square foot body 86, which in turn forms a U-shaped trough 84 with the first L-leg 19. The trough 84 facilitates the resilient pivoting movement of the L-leg 19 and thus the locking lug 83 relative to the second L-leg 78. With dot-dashed lines (see. Fig. 27a ) is an end position of the locking lug 83 during the connection of two floor panels 10.1, 10.2 shown schematically. The L-leg 19 connects via a rounding 95 to the second L-leg 78. The lower support surface 88.1 of the locking lug 13 is arranged at right angles to the L-leg 19. The square, solid design of the base body 86 ensures a secure hold of the profile in the groove 79th

The Fig. 28a shows two coupled floor panels 10.1, 10.2, but without profile 85. The figure is only the outlines of the side edges 12.1, 12.2 reveal more accurately. Accordingly, the side edge 12.1, the rectangular groove 79 and adjoining the upper edge of the groove, almost to the wear layer 5 extending inclined surface 54. On the side edge 12.2, the groove 82 for receiving the locking lug 83 can be seen. The groove 82 has the shape of a quarter-bar.

According to Fig. 29 is the L-profile 85 with its second L-leg 78 reinforcing base body 86 by means of a machine, not shown, factory pressed into the rectangular groove 79. In the form of the floor panel can be distributed.

The Fig. 30 shows two floor panels 10.1, 10.2 during their assembly on narrow sides. The floor panel 10.1 with its pressed into the groove 79 L-profile 85 rests horizontally on the ground, while the second floor panel 10.2 is pivoted about its longitudinal edge. The rounded detent 83 is by the lowering side edge 12.2 of the second floor panel 10.2 in a free space 87 (see. Fig. 28b ), which is bounded by the wear layer 5 and the inclined surface 54.

When lowering the right floor panel 10.1 (see. Fig. 30 ) the downwardly directed projection 66 with its bevel 81 presses continuously against the said, curved sliding surface GF (cf. Figures 27a and 27b ) of the detent 83 until it yields and at an angle β between 40 ° and 45 ° is pressed completely into the free space 87. As soon as the right-hand floor panel 10.2 is lowered, the L-leg 19 supporting the latching nose 83 relaxes and the entire L-profile 85 returns to its original shape. In this case, the locking lug 83 engages in the quarter-bar-shaped groove 82 of the lowered floor panel 10.2. Again, the floor panels 10.1, 10.2 both in the vertical direction Z and in the horizontal direction X (see. Fig. 28b ).

The Figures 31a and 31b show a slightly different embodiment (reference numeral 90) of the Figures 27a and 27b described profile. The profile 90 also has a detent 13 with a curved surface GF, a trough 84 and a solid foot 91, which, however, is provided with a perpendicular to the L-leg 19 directed, groove-shaped, the elasticity increasing undercut 92, whereby a short U- Thigh 93 has emerged. The foot 91 smoothly passes over a rounding 94 in said U-leg 93. The undercut 92 adjoins the trough 84. The lower support surface 88.1 is arranged at a sharp angle α = 85 ° relative to the L-leg 19.

LIST OF REFERENCE NUMBERS

1

floor

2

core layer

3

soil layer

4

surface

5

wear layer

6

area

7.1, 7.2, 7.3

groove

8th

groove

9

The End

10.1, ..., 10.n

floor panel

11.1, 11.2

Side surface (long side)

12.1, 12.2

Side surface (narrow side)

13

locking lug

14

U-leg

15

The End

16

V-leg

17

The End

18

Z-profile

19

L-leg

20

C-section

21; 21.1

U-profile

22, 22.1

U-profile

23

U-profile

24

V-Profile

25

M-Profile

26

W profile

27

P-profile (segmented)

28

L-profile

41

groove

48

midsection

49.1, 49.2, 49.3

locking lug

50

interruption

51, 52

Thighs (v. 25, 26)

53

flap

54

sloping surface

55

web

56

surface

57

surface

58

angle point

59

crossing

60

lock

61

flank

62

lip

63

area

64

U-thighs (v. 21, 22)

65.1, 65.2

flank

66

head Start

67

abutting face

68

support surface

69

surface

70.1, ...., 70.n

segment

71

recess

72

area

73

V-leg

74

groove bottom

75

trough

76

foot

78

L-leg

79

groove

81

bevel

82

groove

83

locking lug

84

trough

85

L-profile

86

foot body

87

free space

88.1, 88.2, 88.3

support surface

89.1, 89.2, 89.3

flank

90

L-profile

91

foot body

92

undercut

93

U-leg

94

rounding off

95

rounding off

F1, F2, F3

force

GF

sliding surface

Q1

cross-section

X

direction

Z

direction

α

angle

β

angle

Claims (13)

1. Floor (1), consisting of a plurality of rectangular, plate-like floor panels (10.1, ..., 10.n) each comprising:

   - a wear layer (5),

   - a floor layer (3),

   - a core layer (2) located between the wear layer and the floor layer and consisting of a derived timber product,

   - two mutually parallel first profiled side surfaces (11.1; 11.2) and two mutually parallel second profiled side surfaces (12.1; 12.2) arranged perpendicularly with respect to the first profiled side surfaces, which are each delimited by a top surface (4) and an opposite lower surface (6) of the floor panel,

   - at least one separate mechanical blocking means which can be inserted or pressed at least partially into at least one groove (8; 40.1; 40.2; 79), the displacement of the floor panels with respect to each other at least in a vertical direction (Z), i.e., perpendicular to the floor layer (3), being blocked by means of the blocking means,

   - wherein the mechanical blocking means is a profile (21, 21.1; 22, 22.1; 23; 24; 25; 26; 27; 28; 85, 90) which in the mounted state extends in a straight line along the side surface (11.1, 11.2; 12.1, 12.2) of a floor panel and comprises a snap lug (13; 49.1, 49.2, 49.3; 83),

   - and wherein the profiled side surface (12.1) has an approximately square groove (8) arranged within the core layer (2) and a lower locking arm (60) protruding over the groove (8),

   characterised in that

   - the snap lug of the profile accommodated in the groove (8; 79) protrudes completely beyond an abutment surface (67) of the floor panel before the floor panels are locked together,

   - the snap lug (13; 49.1, 49.2, 49.3; 83) has a support surface (88.1, 88.2, 88.3) which in the locked state is arranged in parallel with or slightly inclined with respect to the wear or floor layer (5; 3),

   - the snap lug (13; 49.1, 49.2, 49.3; 83), in the locked state, engages into at least one groove (7.1, 7.2, 7.3; 41; 82) - which is incorporated in the core layer (2) of an adjacent floor panel and is compatible with the snap lug - such that the support surface (88.1, 88.2, 88.3) of the snap lug presses against a groove flank (89.1, 89.2, 89.3; 65.2) of said groove (7.1, 7.2, 7.3; 41; 47; 82), which groove flank is facing the floor layer (3).
2. Floor as claimed in claim 1, characterised in that the profile (21, 21.1; 22, 22.1; 23; 24; 25; 26; 27; 28; 85; 90) is at least partially C-, L-, M-, U- or W-shaped.
3. Floor as claimed in claim 1, characterised in that the snap lug (13; 83) is arranged at a free end (9) of a U-limb (14) of the U-shaped profile (21; 21.1; 22, 22.1; 23) or of a V-limb (14) of the V-shaped profile (24) or at a free end (17) of an L-limb (19) of the L-shaped profile (28; 85; 90).
4. Floor as claimed in any one of the preceding claims, characterised in that the M-shaped or W-shaped profile (25; 26) has a spring-elastic, arcuate middle part (48) which becomes two outer limbs (51, 52), one limb (51) of which can be placed in the rectangular groove (8) and the second limb (52) of which engages with its snap lugs (49.1, 49.2, 49.3), lying one above the other, into the grooves (7.1, 7.2, 7.3) of the adjacent floor panel in the relaxed state of the middle part (48).
5. Floor as claimed in claim 4, characterised in that the limb (52) having the snap lugs (49.1, 49.2, 49.3) is provided with a base (76).
6. Floor as claimed in any one of the preceding claims, characterised in that

   - the snap lug (13; 49.1; 49.2, 49.3; 83) is triangular or trapezoidal or at least partially rounded,

   - the snap lug (13; 49.1; 49.2, 49.3; 83) has an inclined slide surface (GF) which faces the wear layer (5) of the floor panel in the mounted state.
7. Floor as claimed in claim 6, characterised in that the slide surface (GF) is flat or curved.
8. Floor as claimed in any one of the preceding claims, characterised in that the L-limb (19) of the L-shaped profile (28; 85; 90) bearing the snap lug (13) and the U-/V-limb (14; 16) of the U-shaped and V-shaped profile (21, 21.1; 22, 22.1; 23; 24) respectively are formed to be at least partially spring-elastic.
9. Floor as claimed in any one of the preceding claims, characterised in that the U-shaped profile (21, 21.2, 22, 22.1; 23) or the V-shaped profile (24) is provided with at least one inner resilient strip (53) which pushes the snap lug (13) against the groove (41) in the locked state.
10. Floor as claimed in any one of the preceding claims, characterised in that the L-limb (19) of the L-shaped profile (28; 85; 90), as two floor panels are connected together, is articulated in the direction of an inclined surface (54) arranged between the wear layer (5) and the floor layer (3) or is supported on the inclined surface (54).
11. Floor as claimed in any one of the preceding claims, characterised in that the L-limb (19) of the L-shaped profile (28; 85; 90) and the U-/V-limb (14; 16) of the U-shaped and V-shaped profile (21, 21.1; 22, 22.1; 23; 24) respectively and snap lugs (13; 83) arranged thereon are segmented by gap-like interruptions (50).
12. Floor as claimed in any one of the preceding claims, characterised in that the L-shaped profile (85; 90) has a solid, approximately square base body (86; 91) which forms, together with the first L-limb (19), a U-shaped trough (84) or a groove-shaped undercut (92) directed perpendicularly to the L-limb (19).
13. Floor as claimed in any one of the preceding claims, characterised in that the profile (21, 21.1; 22, 22.1; 23; 24; 25; 26; 27; 28; 85; 90) is produced from metal, a derived timber product or synthetic material.

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