EP2754773B1 - Substructure for a floor covering - Google Patents

Description

The present invention relates to a substructure for a floor covering, in particular for terrace panels, according to the preamble of claim 1.

There are substructures for floor coverings in which sandbags, accumulations of material or loose parts are placed underneath support beams on which decking boards, boards or stone coverings are laid in order to orient the floor covering substantially horizontally at a distance from a substrate. The layering of material accumulations, sandbags or other parts is relatively complex and inaccurate. In addition, accumulations of material can give way over time, so that the soil is no longer arranged in the originally aligned position.

Furthermore, rotatable adjustable feet made of plastic are known, which are height adjustable via a thread and on which a floor covering is supported. The adjustment of the feet is complex and also there is the problem that due to the low weight of the feet of the floor covering can be easily lifted and moved due to wind loads.

The EP 1 691 002 discloses a laying system for a floor covering, in which plate-shaped covering elements are placed on a plurality of support beams. At the covering elements means for height adjustment are provided to align the covering elements relative to the supporting beams. The production of such covering elements with integrated height adjustment device is comparatively complicated and also leads to the disadvantage that retaining forces are absorbed only in a vertical direction, since the covering elements can also be stressed and displaced in the horizontal direction. Furthermore, in the height adjustment, there is the problem that the screwing of the leveling screws at the different positions of the floor covering takes a relatively long time.

The WO 2009/021516 A1 discloses a flooring fixture comprising two wedge-shaped elements. At the lower wedge-shaped element, a protruding rib with teeth is provided, which in a Recording engages the upper wedge element in order to fix it at different heights can.

The DE 20 2008 003 464 U1 discloses a height-adjustable floor support for system floors with a first and a second base member which are plugged into each other and rotatable about a common axis.

The DE 29 26 488 A1 discloses a height-adjustable support for supporting the upper floor of a double floor with a lower and an upper wedge body.

It is therefore an object of the present invention to provide a substructure for a floor covering, which allows easy installation and also can be mounted on a slightly uneven ground.

This object is achieved with a substructure with the features of claim 1.

According to the invention, the substructure comprises at least one block which can be placed on a base on which at least one holder for a support beam for supporting the floor covering is arranged, wherein the holder can be attached to the block at different heights. As a result, a height compensation can be made in a simple manner by the holder is plugged in the desired height on the block. It is not necessary that over a tedious thread adjustment a fine adjustment takes place, which unnecessarily complicates the assembly. By placing the holder on the block in the desired position, effective alignment in both the vertical and horizontal directions can be achieved by moving the block. Especially when laying large-area floor covering thus the orientation of the support beams, on which then the flooring is launched, done in a short time.

The holder can be formed one or more parts. The support beam must therefore not be fixed directly to the holder, but can also be indirectly fixed to the holder via other components, for example in order to increase the installation height or to support the support beam resiliently. If such additional components are not used, the support beam can also be fixed to an integrally formed holder.

According to the invention, a plurality of receptacles for mounting a holder are formed at different heights on the block. The recordings can be provided along an inclined plane, which is inclined at an angle between 5 ° and 45 °, in particular 10 ° and 30 °, to the horizontal. As a result, the holder can be attached in small steps along the inclined plane.

The holder is inserted for mounting with one or more projections on one or more receptacles of the block. In this case, the projections and the receptacles are designed so that the holder is secured in a mounted on the block position against lifting in the vertical direction. This ensures that the floor covering on the substructure on the one hand is aligned at the correct height and on the other hand can not be lifted easily under a load of the substructure, only if the entire substructure is raised, which is unlikely due to the considerable weight forces for normal use , In order to avoid raising the holder from the block in the vertical direction, the receptacles in the block are groove-shaped, wherein the side walls of a groove-shaped receptacle are inclined in the same direction relative to the vertical. Then forms a wall of the groove-shaped receptacle of a stop, which avoids lifting in the vertical direction. Alternatively, the receptacle is undercut with a tapered neck portion to prevent lifting of the retainer from the block.

According to a further embodiment of the invention, two spaced webs are provided with receptacles for mounting a holder on the block. The support beam can then be positioned at least partially between the two webs with the receptacles, wherein the support beam and the webs are aligned substantially parallel. This makes it possible to secure the holders in a horizontal direction perpendicular to the supporting beam on the block by the two webs form stop surfaces for the holder, so that a displacement in the horizontal direction is avoided.

For ease of assembly of the support beam is preferably latched to the holder. For this purpose, the holder may have on its upper side a flat bearing surface on which one or more latching webs are provided.

On the holder projections for mounting on the block are provided on the bottom, which are substantially form-fitting inserted into corresponding receptacles on the block.

The block of the substructure is preferably produced as a cast part, in particular made of concrete. As a result, the substructure has a high dead weight, so that lifting by a load on the floor covering can be avoided.

Preferably, at least one spring element is provided on or on the holder for the elastic mounting of the support beam, so that the support beam is resiliently mounted during a weight load. As a result, the floor covering can be used, for example, as a sports floor on which ball sports, such as handball or basketball, can be played. On the holder may be provided on the spring element an attachment part on which the support beam is fixed, wherein the attachment part is secured to the holder against lifting. This ensures that the attachment is due to the resilient support by the spring element at a weight load, although lowered down, but lifting, for example, in a suction by high winds, is prevented. This ensures a secure fixing of a floor covering even in stormy weather or under dynamic loads, for example by using the substructure in a sports floor.

According to a further embodiment of the invention, the spring element is designed as a block of an elastic material, in particular of plastic or rubber. By adjusting the Shore hardness, which may for example be in a range between 40 and 100 Shore, the elasticity of the spring element and the bearing of the support beam can be adjusted.

Figur 1

eine perspektivische Ansicht einer erfindungsgemäßen Unterkonstruktion ohne Tragbalken;

Figuren 2A bis 2F

mehrere Ansichten der Unterkonstruktion der Figur 1;

Figur 3

eine perspektivische Ansicht des Blockes der Unterkonstruktion der Figur 1, und

Figuren 4A und 4B

zwei perspektivische Ansichten des Halters der Unterkonstruktion der Figur 1;

Figuren 5A bis 5E

mehrere Ansichten eines weiteren Ausführungsbeispiels einer erfindungsgemäßen Unterkonstruktion;

Figuren 6A und 6B

zwei Ansichten eines Federelementes der Unterkonstruktion der Figuren 5;

Figuren 7A bis 7F

mehrere Ansichten eines Aufsatzteils der Unterkonstruktion der Figuren 5, und

Figur 8

eine perspektivische Ansicht eines weiteren Ausführungsbeispiels einer Unterkonstruktion.

The invention will be explained in more detail with reference to several embodiments with reference to the accompanying drawings. Show it:

FIG. 1

a perspective view of a substructure according to the invention without support beams;

FIGS. 2A to 2F

several views of the substructure of the FIG. 1 ;

FIG. 3

a perspective view of the block of the substructure of FIG. 1 , and

FIGS. 4A and 4B

two perspective views of the holder of the substructure of FIG. 1 ;

FIGS. 5A to 5E

several views of another embodiment of a substructure according to the invention;

Figures 6A and 6B

two views of a spring element of the substructure of Figures 5 ;

FIGS. 7A to 7F

several views of an attachment of the substructure of Figures 5 , and

FIG. 8

a perspective view of another embodiment of a substructure.

A substructure 1 comprises a block 2, which may be made of a casting of concrete, plastic or a mixture thereof, and at least one holder 3, which is attached to the block 2. The holder 3 may be made of plastic, wood or other materials.

The block 2 has a bottom plate 5, which can be placed on a substrate, wherein on the bottom plate 5, two spaced apart parallel webs 6 are formed. A holder 3 is arranged on the two webs 6 and has on its upper side a receptacle 7, on which a flat support surface 20 is formed, which is bounded laterally by two locking webs 8, which have inwardly directed bendable projections 9 to a support beam to lock.

In the FIGS. 2A to 2F the substructure 1 is shown in different views, wherein in FIG. 2B an example of a support bar 4 is shown, which is held on the upper holder 3 on the block 2. On the right side of the bottom 2, another holder 3 is plugged out, which is positioned lower by the height Δ h than the left holder 3. As a rule, of course, only one holder 3 is mounted on the block 2.

The substructure 1 may have a plurality of blocks 2 and holders 3 in the longitudinal direction of the support beam 4, depending on the length of the individual support beams 4 and the expected weight load. In addition, a plurality of supporting beams 4 can be arranged parallel to one another and supported by blocks 2 and holders 3. To the support beam 4, a floor covering is then placed, for example, wooden boards or extruded panels of a mixture of natural fibers and a polymer, which are also known as WPC plates.

Both webs 6 have on their upper side a plurality of tooth-shaped projections 10, between which groove-shaped receptacles 11 are formed. In the receptacles 11 tooth-shaped projections 22 of the holder can be inserted, in the illustrated embodiment, on the underside of each holder 3, two projections 22 are provided on each side, which are respectively inserted into receptacles 11 on one of the webs 6.

The groove-shaped receptacles 11 each have two walls 14, which are connected to each other via a bottom 15. Both walls 14 are inclined in the same direction from the vertical, in Figure 2C the upper wall 14 is inclined by the angle β to the vertical and the two walls 14 are arranged spread apart by the angle α. As a result, jamming of the holder 3 during assembly is avoided. In addition, it is prevented that the holder 3 can be lifted in the vertical direction of the block 2, but can only be pulled off obliquely upward from the block 2 to disassemble the holder 3. If the support beam 4 and the floor covering are supported on the holder 3, the holder 3 can only be moved together with the block 2 in the vertical direction.

In FIG. 3 the block 2 is shown without a holder 3. The two spaced webs 6 form an inclined plane, at the top of a plurality of receptacles 11 are arranged, in this embodiment six shots 11. Preferably, the number of shots 11 depending on the height adjustment, for example, between four and ten shots 11. At the Base plate 5 is further formed a recess 12 to mount a holder 3 in the lower region of the webs 6, wherein it is ensured in each case that a bearing surface 20 is disposed at least as high as a top 13 of the bottom plate to the holder 3 5, so that the alignment of the support beams via the holder 3 takes place. The distance between the webs 6 is dimensioned such that a support beam 4 between the two Webs 6 can be positioned, even when the holders 3 are mounted in a lower position on the block 2.

In the FIGS. 4A and 4B the holder 3 is shown in detail. The holder 3 has on its upper side a flat support surface 20 with two parallel locking webs 8, between which the support beam 4 can be fixed by clamping or latching. On an underside 21 of the holder 3 projections 22 are formed on opposite end faces, between which a gap 23 is arranged, so that the projections 22 can be inserted into the receptacles on the block 2 substantially positive fit. Further, the holder 3 has a plate-shaped central portion, so that in the region of the gaps 23 an end-face contact surface 24 is formed on the holder 3, so that this after mounting on the block 2 against displacement in the horizontal direction both in the direction of the support beam as well as secured perpendicular thereto.

In the illustrated embodiment, each holder 3 on opposite sides on two projections 22 which can be mounted in corresponding receptacles on the block 2. It is, of course, possible to vary the mechanical means for mounting the holder 3, for example projections may be provided which have a tapered neck portion and can be inserted laterally into the block to thereby prevent lifting of the holder from the block. Other geometries of the holder 3 can be provided.

In the FIGS. 5A to 5E a further substructure 1 'is shown, in which a supporting beam 4' for a floor covering on a block 2 'is supported. The block 2 'is formed substantially as in the previous embodiment and has a bottom plate on which two parallel webs 6 are formed with tooth-shaped projections 10 and groove-shaped receptacles 11 which are arranged along a plane extending obliquely to the horizontal, as above has been described. The block 2 'further has at the corner areas four pins 50 which project beyond the bottom plate and allow stacking of a plurality of blocks 2' one above the other. Eyelets 51 are fixed to two diametrically opposite pins 50, while 50 hooks 52 are provided on two further pins, so that the blocks 2 'can not only be stacked on top of each other, but with adjacent blocks 2' via a connection of the hook 52 with the Eyelets 51 can be fixed in the horizontal direction, so that an integral transport safety device is formed.

This facilitates handling during assembly and disassembly of the blocks 2 '.

At the block 2 'with the two webs 6 and the groove-shaped receptacles 11, a holder 3 is inserted, as has already been described in the previous embodiment. On the holder 3, however, the support beam 4 'is not directly attached, but via the interposition of a spring element 30 and an attachment portion 40. As a result, the support beam 4' is arranged higher than in the previous embodiment with respect to the block 2 'and also elastically mounted, so that a floor covering supported on the supporting beam 4 'can be used, for example, as a sports floor. The spring element 30 is block-shaped and arranged between the attachment part 40 and the top of the receptacle 7 of the holder 3, so that the attachment part 40 can be moved to the holder 3 during a weight load. The attachment 40 has two opposite locking webs 41, which engage with an inwardly directed projection 42 in a groove 39 on one side of the supporting beam 4 '. The support beam 4 'is thereby secured against lifting of the attachment part 40, wherein the support beam 4' can be locked in a simple manner to the attachment part 40.

The attachment 40 further has on the side facing away from the support beam 4 'side two retaining webs 48 which can be brought into engagement with the locking webs 8 of the holder 3. At the locking webs 8 inwardly directed projections 9 are formed, which engage over the retaining web 48 at least partially, so that the attachment part 40 can not be lifted from the holder 3. Below the holding webs 48, however, a free space is formed, so that the attachment part 40 can move towards the holder 3, in particular during a weight load, which compresses the spring element 30.

In the Figures 6A and 6B is a spring element 30 of the substructure 1 'shown in detail. The spring element 30 is block-shaped and comprises two recesses 32, which have a receptacle 33 for the locking webs 8 of the holder 3 on the side facing the end faces of the block 31 side. The locking webs 8 can be inserted into the recess 32, and are moved when locking the locking webs 8 with the retaining webs 48 to the outside, wherein the locking webs 8 then engage in the receptacles 33. In the block 31 of the spring element 30, a channel 34 is further formed for inserting a screw, which can be mounted as a lift-up.

In the FIGS. 7A to 7F the attachment 40 is shown in detail. The attachment 40 comprises at its top a receptacle 43 which is surrounded by two locking webs 41, wherein on the locking webs 41 inwardly directed projections 42 are formed. At the locking webs 41, a support beam 4 or 4 'can be locked so that it is secured against lifting by the attachment part 40. Furthermore, the attachment part 40 comprises at a bottom 46 of the receptacle 43 a bore 44 which has a larger diameter in the region of the receptacle 43 and tapers within the attachment part 40 and forms a narrower bore channel 47. As a result, a head of a screw can be sunk in the bore 44 with a larger diameter and be screwed as a lifting in the holder 3 and / or the block 2 '. The attachment 40 is formed as an injection molded part and comprises hollow chambers between the bottom 46 and a bottom 45. In the region of the bottom 45, the two holding webs 48 are further formed, which are hook-shaped and can be brought into engagement with the locking webs 8 of the holder 3.

The elasticity of the mounting of the supporting beam 4 'can be adjusted by selecting a suitable spring element 30. The spring element 30 can be selected from a material having a Shore hardness of, for example, between 40 Shore and 80 Shore, depending on the weight loads on a floor covering. The thickness of the spring element 30 is preferably in a range between 10 mm and 40 mm, in particular 15 mm to 25 mm, in order to provide a sufficient spring travel for the supporting beam 4 '.

In FIG. 8 3 shows a further exemplary embodiment of a substructure in which "two support beams 4 'are fixed to a modified block 2. For this purpose, the block 2" has a greater width, so that two holders 3 can be fixed to webs 6 with projections 10 and receptacles 11 , At the two spaced holders 3 is a respective block-shaped spring element 30 and an attachment part 40 is mounted, as in the embodiment of the FIGS. 5 to 7 has been described. As a result, "two parallel support beams 4" can be supported on the block 2. The mounting of adjacent support beams 4 'in particular makes it possible to fix adjacent floor panels which abut one another on the front side.

The installation of a floor covering with floor panels on the support beams 4 and 4 'can be done via clips, brackets or other fastening means, preferably allow a releasable attachment, so that a floor covering can be quickly mounted on a large surface and dismantled again.

In the embodiments of the FIGS. 5 to 8 the elastic support of the supporting beams 4 'takes place via a multi-part construction through the holder 3, the spring element 30 and the attachment 40. It is of course also possible to attach to the bearing surface 20 of the holder 3 (FIG. Fig. 4A ) provide a spring element, which is optionally loosely inserted into the receptacle 8 or fixed there by gluing or mechanical fastening means. Such a spring element could also be formed on the holder 3 in the 2-component injection molding process. By the locking webs 8 of the supporting beam 4 or 4 'remains secured to the holder 3 against lifting, even if the support surface 20 is formed elastically.

LIST OF REFERENCE NUMBERS

1, 1 '

substructure

2, 2 ', 2 "

block

3

holder

4, 4 '

stringers

5

baseplate

6

web

7

admission

8th

latching web

9

head Start

10

head Start

11

admission

12

recess

13

top

14

wall

15

ground

20

bearing surface

21

bottom

22

head Start

23

gap

24

contact surface

30

spring element

31

block

32

recess

33

admission

34

channel

39

groove

40

attachment

41

latching web

42

head Start

43

admission

44

drilling

45

bottom

46

ground

47

drill hole

48

holding web

50

spigot

51

eyelet

52

hook

α

corner

β

corner

Claims (8)

1. A substructure (1) for a floor covering, in particular for terrace panels, having at least one block (2, 2'), which can be put down on a foundation, and on which at least one holder (3) for a support beam (4, 4') for supporting the floor covering is arranged, whereby multiple receptacles (11) for installing a holder (3) at different heights are implemented on the block (2, 2') and the holder (3) is pluggable onto the block (2, 2') at different heights, whereby the holder (3) is plugged in a substantially form-fitting manner using one or more projections (22) are provided on the holder (3) on the bottom side onto one or more receptacles (11) of the block (2, 2') for the installation, characterized in that the holder (3) is secured against lifting off in the vertical direction in a position installed on the block (2, 2'), whereby the receptacles (11) on the block (2, 2') are implemented as grooved and either the lateral walls (14) of a receptacle (11) are implemented as inclined in the same direction in relation to the vertical or the receptacle (11) is implemented as undercut having a tapered neck section.
2. The substructure according to Claim 1, characterized in that the receptacles (11) are provided along an inclined plane, which is inclined at an angle between 5° and 45°, in particular between 10° and 30°, to the horizontal.
3. The substructure according to one of the preceding claims, characterized in that two spaced-apart webs (6) having receptacles (11) for installing a holder (3) are provided on the block (2, 2').
4. The substructure according to one of the preceding claims, characterized in that the substructure comprises a support bean (4') and the support beam (4, 4') is lockable on the holder (3).
5. The substructure according to one of the preceding claims, characterized in that the substructure comprises a support bean (4') and the holder (3) has a flat support surface (20) for a support beam (4, 4') on a top side.
6. The substructure according to one of the preceding claims, characterized in that the substructure comprises a support bean (4') and at least one spring element (30) for elastically mounting the support beam (4') is provided at or on the holder (3).
7. The substructure according to Claim 6, characterized in that an attachment part (40), which is supported on the spring element (30), is provided on the holder (3), on which attachment part the support beam (4') is fixed, wherein the attachment part (40) is secured against lifting off on the holder (3).
8. The substructure according to Claim 6 or 7, characterized in that the spring element (30) is implemented as a block made of elastic material, in particular made of plastic or rubber.

Images