EP3553250A1 - System for the formation of a floor - Google Patents

Abstract

A system for forming a floor, consisting of a plurality of panels (10, 20) with an upper side (11, 21) and an underside (12, 22), which on their side edges (I, II) are profiled from a horizontal Direction of the first groove (13, 23) and a tongue (14, 24) adjoining in the direction of the underside (12, 22), the upper surface of which has the lower wall (13.1, 23.1) of the groove (13, 23), and which have a second groove (15, 25) extending from the underside (12, 22) in the direction of the upper side (11, 21), two adjacent panels (10, 20) each being connectable via a separate locking element (30) and are lockable to each other, and the locking element (30) consists of a base body (31), at the opposite ends of which an upward-facing locking hook (32, 33) for interacting with the second groove (15, 25) and locking two adjacent panels ( 10, 20) in horizontal direction device (H), and in its central region two upward-pointing arms (34, 35) with angled locking arms (36, 37) at their free ends for interacting with the first grooves (13, 23) and locking the adjacent panels (10 , 20) in the vertical direction (V) is characterized in that the upward-facing surfaces (36.1, 37.1) of the locking arms (36, 37) are inclined at a first angle (α) to the upper side (11, 21) run, the downward-facing surfaces (14.1, 24.1) of the springs (14, 24) are inclined at a second angle (ε) to the top (11, 21), the first angle (α) is at most as large as the second angle (ε), the distance (a) of the arms (36, 37) to one another is at least as large as the width (b) of the downward-facing locking surfaces (36.3, 37.3) of the locking arms (36, 37).

Description

The invention relates to a system for forming a floor, consisting of a plurality of panels having a top and a bottom, the profiling on its side edges of a horizontal groove extending in the first groove and a subsequent towards the bottom spring, the top of the spring bottom wall of the groove forms, and having an outgoing from the bottom towards the top extending second groove, wherein each two adjacent panels are connectable and lockable to each other via a separate locking element, and the locking element consists of a base body, at its opposite Each ends an upwardly facing locking hook for cooperation with the second groove and locking two adjacent panels in the horizontal direction, and in its central region two upwardly facing arms with angled at their free ends locking arms for Zusammenw irken with the first grooves and locking the adjacent panels are provided in the vertical direction.

Such system is for example from the EP 1 119 671 B1 known. For laying a floor of a plurality of panels, the locking element is first clipped on a side edge of a panel and then the panel with the clipped-on locking element is placed on the subfloor. The panel to be adjacent thereto is lowered in the vertical direction from top to bottom on the subfloor or the locking element. In this case, the locking arm pivots first and springs, when it comes into coincidence with the horizontal groove back and snaps into the groove. The panels are then locked to each other in the horizontal and vertical directions. A disadvantage of this locking system is that from the laid floor individual panels or not can be removed only with great difficulty, because the locking arms can be pulled out of the vertical groove only in the horizontal direction.

The invention has for its object to improve the known floor system so that the disadvantage described is eliminated.

To solve a generic system is characterized in that the upwardly facing surfaces of the locking arms inclined at a first angle to the top extend the upwardly facing surfaces of the locking arms at a first angle to the top inclined, the downwardly facing surfaces of the springs in run at a second angle to the top, the first angle is at most as large as the second angle, the distance between the arms is at least as large as the width of the bottom-facing locking surfaces of the locking arms, the downwardly facing surfaces of the springs (spring underside) in extend at a second angle to the top inclined, the first angle is at most as large as the second angle and the distance of the arms to each other at least as large as the width of the downwardly facing locking surfaces of the locking arms.

Preferably, the first angle is smaller than the second angle, and more preferably, the panels are identically profiled at all their side edges.

Because the second angle of the downwardly facing surfaces of the spring (spring underside) to the top is greater than the first angle of the surfaces of the locking hooks, the spring has a steeper angle to the top of the plate. As a result, the lower wall of the spring when lowering the panel first touches the outer edge of Verrasthakens, whereby this is pressed towards the center of the already installed locking element and not simply bends, because the whole surface of the spring underside rests on the top of Verrasthakens and after presses down.

The fact that the upwardly facing surfaces of the locking arms are inclined at an angle to the top of the panels, they can dodge in the horizontal groove to the inside, when acting on its upper side, a vertical force. If the distance between the upwardly facing arms is large enough, the arm can swing back so far that the panel to be removed can be easily removed in a vertical direction from the laid floor. Correspondingly simple, a new panel can then be used again by exclusively vertical lowering.

If the panels are designed not only on two opposite, but on all side edges with the same profile, the production is significantly simplified, because the elimination of the profile change facilitates the installation of the manufacturing facility, eliminates multiple tool procurement and storage, and the production control is simplified.
Even extremely thin panels with a thickness of less than 4 mm can still be securely connected to each other. Due to the identical profiling, the panels can be laid in all directions, ie also with the long side to the transverse side and vice versa. A herringbone installation is possible. Also, different formats can be mixed together. Both small and large panels, as well as wooden floorboards with stone tiles, etc. In order to allow mixing, the panel formats must be chosen to have a least common denominator both longitudinally and transversely.

If the distance between the arms is so great that a gap is established at the top of two adjacent panels, a decorative element can be inserted between the arms to close the gap. The decorative element may also protrude above the top of the panels if desired for visual reasons.

The decorative element can be printed or painted to decorate its surface. Also, another element, such as an aluminum strip can be glued. By co-extrusion of various plastics or differently colored plastics, the surface of the locking element can be decorative.

The locking element can also be designed such that an LED illumination can be attached between the arms. Between the arms, a channel is formed, which can be heated, for example via a heating medium. The heating medium may be liquid or an electrical resistance.

The locking element is preferably made of plastic, a plastic-wood mixture, a wood material or a plastic-mineral mixture. As a result, the locking element has a certain elasticity, can be compensated with the manufacturing tolerances in the panels. Due to the elasticity of the locking element and larger surfaces of a floor can be laid without expansion joints.

The latching element may also be made of metal or other conductive material, each being routed continuously (from the roller) through the entire space, and grounded at the end to form a conductive or antistatic floor covering in conjunction with conductive panels or a conductive panel surface ,

If the arms of the locking element facing away from surfaces of the locking hooks extend outwards at an angle to the top of the panels, it is possible to connect a new panel by horizontal displacement with the already laid panel, because the spring then over the angled surface can slide away and then locks between the locking arms and the locking hook. For this purpose, the adjacent panel edges are then milled obliquely at the same angle.

Preferably, the locking hooks extend at their ends merging into the main body pointed, so that a correspondingly easy to detect and long guideway for the spring is set when connecting horizontally.

The locking element can also be panel-spreading. This is particularly important when laying with cross joints, which is typically the case with square panels. In conventional systems, the connection ends at a certain distance from the panel edge and the edges tend to Aufstippungen. The panel-overlapping locking element connects the two panels in one plane and prevents tipping.

The locking element can also be designed so that it serves as an expansion joint. It can also protrude beyond the floor surface at the edge, so that it can be inserted over a corresponding receptacle in the profile strip without having to drill holes in the wall of the room.

The locking element is preferably produced by extrusion.

To simplify the laying, the locking element can be preassembled in at least one of the side edges. In particular, preferably, the locking element is preassembled in two mutually angular side edges. For pre-assembly, it is possible to glue the locking element in the side edges.

Figur 1

- die perspektivische Darstellung eines Paneels im Linksschnitt:

Figur 2

- zwei mit ihren Seitenkanten aneinanderliegende Paneele in Teildarstellung;

Figur 3

- die Darstellung nach Figur 2 mit einem ersten eingesetzten Verriegelungselement;

Figur 4

- die Darstellung nach Figur 2 mit einem zweiten eingesetzten Verriegelungselement;

Figur 5

- das Verriegelungselement nach Figur;

Figur 6

- das Verriegelungselement nach Figur 3;

Figur 6

- eine Ausführungsform zweier miteinander verbundener Paneele.

With the help of a drawing, two embodiments of the invention will be described in detail below. Show it:

FIG. 1

- the perspective view of a panel in left-hand section:

FIG. 2

- Two juxtaposed with their side edges panels in partial view;

FIG. 3

- the representation after FIG. 2 with a first inserted locking element;

FIG. 4

- the representation after FIG. 2 with a second inserted locking element;

FIG. 5

- The locking element of Figure;

FIG. 6

- the locking element after FIG. 3 ;

FIG. 6

- An embodiment of two interconnected panels.

FIG. 1 shows the perspective view of a panel that can take any shape in itself. It can be square, rectangular, triangular, hexagonal or rhomboid in plan view. In the illustrated form it has four pairs of opposite side edges I, II and III, IV.

The profiling of the side edges I, II, III, IV is made FIG. 2 clearly visible. On the side edges I, II are parallel to the top 11, 21 horizontally extending grooves 13, 23 milled, to which in the direction of bottom 21, 22, a spring 14, 24 connects, the upper side of the lower wall 13.1, 23.1 of the horizontal groove 13, 23 trains. The spring 14, 24 jumps back relative to the outer edge 17, 27, with which the panels 10, 20 touch, and initially runs essentially straight downwards, is then returned at an angle ε in the direction of the center of the panel and ends with its bottom facing surface 14.1, 24.1 in one from the bottom 12, 22 in the direction of the upper side 11, 21 introduced groove 15, 25. The wall of the groove 15.1, 25.1, which adjoins the spring 14, 24 extends at an angle γ to the top 11, 21. For connecting two panels 10, 20th abut the side edges I, II above the horizontal grooves 14, 24 to each other. The chamfers 16, 26 on the side edges I, II are preferred and not necessarily provided.

To connect the two panels 10, 20, the locking elements 30 are provided, as in FIGS. 5 and 6 are shown. The identical embodiments of both embodiments of the locking elements 30 are provided with identical reference numerals. The locking element 30 consists of a base body 31 at its opposite ends locking hooks 32, 33 are provided. In the middle extend from the main body 31, two arms 34, 35, which form locking arms 36, 37 at their upper ends. The upper surfaces 36.1, 37.1 of the locking arms 36, 37 extend at an angle α to horizontal H (top 11, 21 of the panels 10, 20). The in the direction of the arms 34, 35 facing surfaces 32.2, 33.2 of the locking hooks 32, 33 extend relative to the horizontal (tops 11, 21 of the panels 10, 20) at an angle β. At the in FIG. 5 the embodiment shown, the upward wall 32.1, 33.1 runs parallel to the top 11, 21, while this wall 32.3, 33.3 at the in FIG. 6 shown embodiment with respect to the horizontal H inclined at an angle δ, so that the locking hooks 32, 33 expire at an acute angle to their ends. As a result of this design, the panel 10, 20 can also be connected to the locking hook 30 in the horizontal direction H. The cooperating with the locking hooks 32, 33 walls 15.2, 25.2 of the grooves 15, 25 are then milled at the same angle, so that they can optionally be supported on the locking hooks 32, 33.

The angle γ of the groove walls 15.1, 25.1 corresponds to the angle β of the walls 32.2, 33.2 of the locking hooks 32, 33 pointing in the direction of the arms 34, 35. If the panels 10, 20 are connected to one another, the walls 15.1, 25.1, 32.2, 33.2 abut each other. The first angle α in which the upwardly facing surfaces 36.1, 37.1 of the locking arms 36, 27 are inclined to the upper side 11, 21 is at most as large, but preferably smaller, than the second angle ε with which downwardly facing surfaces 14.1, 24.1 of the springs 14, 24 to the top 11, 21 of the panels 10, 20 are inclined. If, for example, the panel 20 for connection to the panel 10 in the vertical direction V is lowered onto the locking element 31 which is already connected to the panel 10, touched by the slightly steeper angle to the top surface 11, 21, the spring underside 14.1, 24.1 when lowering first the outer edge of the locking arm 36, 37 whereby this is pressed towards the center of the locking member 30 and does not bend, because the entire surface of the spring underside 14.1, 24.1 rests on the surface 36.1, 37.1 of the locking hook 36, 37 and pushes it down.

The distance a between the arms 34, 35 is arbitrary per se. Of course, the distance a must be so great that the arm 34 or 35, which comes when creating a new panel 10 or 20 with the spring base 14.1 or 24.1 into contact, far enough to the center of the locking element 31 can escape. However, it must correspond at least to the width b of the downwardly facing locking surfaces 36.3, 37.3 of the locking arms 36, 37 (cf. FIGS. 5, 6 ). If it is chosen so large that forms a gap 1 at the side edges I, II of the panels 10, 20, between the arms 34, 35, a decorative element 40 can be used, which is flush with the top 11, 12 or over this can stand out. This decorative element can be dyed or painted for decoration. Instead of a decorative element 40, an LED strip between the arms 34, 35 can be inserted.

LIST OF REFERENCE NUMBERS

1

gap

10

paneling

11

top

12

bottom

13

groove

13.1

groove wall

14

feather

14.1

Surface / spring underside

15

groove

15.1

groove wall

16

chamfer

17

outer edge

20

paneling

21

top

22

bottom

23

groove

23.1

groove wall

24

feather

24.1

Surface / spring underside

25

groove

25.1

groove wall

26

chamfer

27

outer edge

30

locking element

32

locking hook

32.1

Surface / wall

32.2

Surface / wall

33

locking hook

33.1

Surface / wall

33.2

Surface / wall

34

poor

35

poor

36

lock

36.2

side surface

36.3

locking surface

36.1

top

37

lock

37.1

top

37.2

side surface

37.3

locking surface

40

decorative element

I

side edge

II

side edge

III

side edge

IV

side edge

α

angle

β

angle

γ

angle

δ

angle

ε

angle

a

distance

b

width

H

horizontal direction

V

vertical direction

Claims (10)

A system for forming a floor, comprising a plurality of panels (10, 20) with a top (11, 21) and a bottom (12, 22) profiled from one in its horizontal direction at its side edges (I, II) extending first groove (13, 23) and in the direction of the bottom (12, 22) adjoining spring (14, 24), the upper side of the spring, the lower wall (13.1, 23.1) of the groove (13, 23) forms, and one of the bottom (12, 22) outgoing in the direction of the top (11, 21) extending second groove (15, 25), wherein each two adjacent panels (10, 20) via a separate locking element (30) connectable and to each other can be locked, and the locking element (30) consists of a base body (31), at its opposite ends in each case an upwardly facing locking hook (32, 33) for cooperation with the second groove (15, 25) and locking two adjacent panels (10 , 20) in the horizontal direction (H), and in the central region thereof two upwardly directed arms (34, 35) with locking arms (36, 37) angled at their free ends for co-operation with the first grooves (13, 23) and locking the adjacent panels (10, 20) are provided in the vertical direction (V),
characterized in that a) the upwardly facing surfaces (36.1, 37.1) of the locking arms (36, 37) are inclined at a first angle (a) to the upper side (11, 21), b) the downwardly facing surfaces (14.1, 24.1) of the springs (14, 24) are inclined at a second angle (ε) to the upper side (11, 21), c) the first angle (a) is at most as large as the second angle (ε), d) the distance (a) of the arms (36, 37) to each other is at least as large as the width (b) of the downwardly facing locking surfaces (36.3, 37.3) of the locking arms (36, 37). System according to claim 1, characterized in that the first angle (a) is smaller than the second angle (ε). System according to claim 1 or 2, characterized in that the panels (10, 20) are profiled identically on all their side edges (I, II, III, IV). System according to one of the preceding claims, characterized in that the distance (a) between the arms (34, 35) is so large that at the top (11, 21) of two adjoining panels (10, 20) a gap (1 ), and between the arms (34, 35) a decorative element (40) or LED lighting is inserted, which closes the gap (1) and preferably over the tops (10, 21) of the panels (10, 20) protrudes. System according to one of the preceding claims, characterized in that the locking element (30) consists of plastic, a plastic-wood mixture, a wood material or a plastic-mineral mixture or of metal and is preferably produced by extrusion. System according to one of the preceding claims, characterized in that the locking element (30) in at least one side edge (I, II) is pre-assembled. A system according to claim 6, characterized in that the locking element (30) is preassembled in two side edges (I, III; II, IV) which run at an angle to each other. System according to one of the preceding claims, characterized in that the locking element (30) serves as an expansion joint. System according to one of the preceding claims, characterized in that the arms (34, 35) facing away from surfaces (32.3, 33.3) of the locking hooks (32, 33) to the outside at an angle (δ) inclined to the top (11, 21) , System according to claim 9, characterized in that the locking hooks (32, 33) taper at their ends.

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