EP4108848B1 - Terrace floor substructure with supports for floor coverings - Google Patents

Description

The invention is based on a terrace floor substructure with the features of the preamble of claim 1. Such a terrace floor substructure is from CN 112 942 731 A known. Another patio floor substructure is from the DE 20 2015 105013 U1 known. Another terrace floor substructure is from the DE 20 2015 005 659 U1 known. A similar terrace floor substructure is also described in DE 10 2019 132 571 A1 .

The terrace floor substructures known from the prior art have the disadvantage that the attachment of a transverse connector to the profile strut, which is required for the arrangement of a transverse profile which extends perpendicularly to the profile strut, is associated with a great deal of effort. In particular, several self-tapping screws must be screwed into the profile strut at a previously precisely measured position in the longitudinal direction of the profile strut. Subsequent readjustment of the position of the cross-connector is only possible to a limited extent without exposing the previously unsuccessful holes for fastening the cross-connector and thus creating points of attack for weather and corrosion.

It is therefore the object of the invention to further develop a terrace floor substructure of the type described above in such a way that it allows the cross connector to be installed in any position in the longitudinal direction of the profile strut with as few tools as possible and is also non-destructive in relation to the profile strut, so that corrosion of the terrace floor substructure is prevented.

This problem is solved by a patio floor substructure having the features of claim 1 . Advantageous embodiments are the subject matter of the dependent claims.

Accordingly, in a patio floor substructure of the type described above, it is provided that the slot nut faces the undercut retaining groove Page is rigidly connected and rotatably received in the retaining groove between a release position and a locking position.

Instead of screwing the cross connector to the profile strut with the help of several self-tapping screws, it is therefore provided that the cross connector is locked in an undercut groove on one of the opposite vertical sides of the profile strut. The locking can be done without tools due to the undercut of the groove. The cross-connector can be fastened in the undercut groove with a friction fit. For this purpose, the cross-connector can have a sliding block on its side facing the undercut groove, with which the cross-connector is locked in the undercut groove, for example during a 90° rotation after the sliding block has been previously inserted into the undercut groove.

The release position and the locking position can be displaced relative to one another by a 90° rotation about an axis which extends perpendicularly to the vertical side having the undercut groove.

The sliding block can engage behind the retaining groove in the locking position and be arranged completely in line with a clear opening of the undercut retaining groove in the release position.

In the locking position, the sliding block can rest with opposite, short end faces in a frictional connection on opposite inner sides of an undercut of the undercut retaining groove. For this purpose, the short end faces can have a radius or a run-on contour.

The transverse connector can be designed as a retaining shoe open to the upper side of the lower support frame. The support shoe may have a horizontal bottom side and two side walls extending parallel to one another and perpendicular to the bottom side at opposite edges of the bottom side. The base side and the two side walls extending perpendicularly to the base side can be connected on their sides facing the undercut groove to the side of the cross connector or edge holder facing the undercut retaining groove, in particular extending perpendicular to the side facing the undercut retaining groove.

At least one of the side walls can have an opening for a fastener, preferably for a self-tapping screw, with the opening preferably being in the form of an elongated hole with a horizontal direction of extension. The opening can be used to connect an end of a further profile strut extending perpendicularly to the profile strut to the holding shoe, for example by screwing a self-tapping screw through the slot-shaped opening into the further profile strut. However, screwing the additional profile strut to the retaining shoe, which is open at the top, is optional. For example, it can also be provided that the additional profiled strut is simply inserted into the holding shoe and fixed or clamped there in a frictional connection.

The at least one edge holder can be arranged on the outer circumference of the sub-support frame. At least one spacer can rest with a contact side on the edge holder and have a wall connection with a support surface at an end of the contact side facing away from the edge holder. The patio floor substructure according to the invention is therefore also suitable for being fastened without tools to any longitudinal position of the profile strut in the manner already described with reference to the cross connector, in order to position a wall connection to a building wall, for example.

Alternatively or additionally, the terrace floor substructure can have a base holder, which rests with a bearing side on the edge holder and has a fastening means for a panel of a vertical facing of the terrace floor substructure at an end of the bearing side facing away from the edge holder. In one embodiment of the invention, the spacer and the socket holder can be of identical design.

The fastening means for the panels of a vertical facing of the patio floor substructure can be set up to engage over the panels of a vertical facing at their upper longitudinal edge. For this purpose, the fastening means can have a U-shaped receptacle for the panels on its underside facing the upper longitudinal edge of the panels. The fastening means can encompass the longitudinal edge of the panel with the U-shaped receptacle, so that the panel is held in the U-shaped receptacle.

At the end of the support side facing away from the edge holder, the base holder can have a cover strip, which extends in the vertical direction and is designed to cover on the one hand an upper longitudinal edge of a panel of a vertical cover of the terrace floor substructure and on the other hand a free edge of a floor covering lying on the supporting frame.

The subframe can be supported at least on its outer circumference on at least one pedestal. A further fastening means can be fastened to the pedestal, which extends from the pedestal in the direction of the panels and has a further U-shaped receptacle for the panels on its upper side facing the lower longitudinal edge of the panels opposite the upper longitudinal edge. The U-shaped receptacle and the further U-shaped receptacle can be arranged with their openings aligned with one another facing one another.

The support side can have a slot-shaped opening extending in the direction of connection between the wall connection and the undercut retaining groove.

According to another aspect, a profile system is described with which a terrace floor substructure of the type described above can be formed. Accordingly, the profile system can have a plurality of profile struts forming a supporting frame for floor coverings, each of which has a longitudinal groove open to its upper side, in which an element for fastening and/or aligning floor coverings is inserted in a longitudinally displaceable manner. The element is particularly preferably also adjustable in a direction that extends perpendicular to the longitudinal direction of the longitudinal groove and perpendicular to the depth of the longitudinal groove. Due to the adjustability both in the longitudinal direction of the profile struts and in the horizontal plane perpendicular thereto, a calibration of the position of the elements for the attachment and/or alignment of the floor coverings for both directions of extension of the floor covering elements can be created, especially for large, plate-shaped floor covering elements, for example large-format tiles.

The element for fastening and/or aligning the floor coverings can have an upper part with a spacer or a clamping element for engagement in a lateral groove of a floor covering and a lower part which is guided in the longitudinal groove in the longitudinal direction. The cross spacer and the clamping element can in principle for example in the from the DE 10 2016 000 829 A1 be formed known manner.

The upper part and the lower part can be guided in the direction that extends perpendicular to the longitudinal direction of the longitudinal groove and perpendicular to the depth of the longitudinal groove so that they can be displaced relative to one another via a sliding guide in order to enable the element for fastening and/or aligning floor coverings to be displaced according to the invention in the two spatial directions extending perpendicular to one another, in particular in two horizontal spatial directions.

One of the upper part and the lower part can have at least one elongated hole that extends in a direction that extends perpendicular to the longitudinal direction of the longitudinal groove and perpendicular to the depth of the longitudinal groove. The other of the upper part and the lower part can have at least one pin guided in the at least one elongated hole.

The lower part can have three parallel elongated holes, which are preferably designed as through holes. The slots can preferably extend in the direction perpendicular to the longitudinal direction of the longitudinal groove and perpendicular to the depth of the longitudinal groove. The elongated holes can be part of the sliding guide, with the help of which the lower part and the upper part are guided to be displaceable relative to one another.

The upper part can have a pin extending from its side facing the lower part, which is guided in a central one of the three parallel longitudinal holes.

The upper part can have at least two openings which, in a target orientation of the upper part in relation to the lower part in the direction of rotation around the axis of symmetry of a pin of the upper part, with which the upper part is guided in a central one of the three elongated holes of the lower part, are aligned with the other two, outer elongated holes of the three elongated holes.

In each case one fastening means, preferably a screw, can extend through the openings in the upper part into the respectively aligned elongated hole and thus fix the upper part to the lower part in a rotationally fixed manner in the direction of rotation.

At least one of the fastening means can extend through the upper part and the lower part into a bottom profile side of the longitudinal groove. The fastening means can be a self-tapping screw, for example.

The upper part may have a clamping element for engaging a lateral groove of a floor covering, from which at least one spigot extends into an elongated hole in the lower part, such as two parallel spigots which extend into the two outer ones of the three parallel elongated holes in the lower part.

The at least one pin can extend through the at least one elongated hole and be supported on the bottom profile side of the longitudinal groove. A spacing of the clamping element from the bottom profile side can be adjusted by the length of the pin. For example, the pin can have a length that is dimensioned such that the clamping element is at a distance from the lower part, which corresponds to a vertical distance of a lateral groove of a floor covering from a support side with which the floor covering rests on the terrace floor substructure.

The clamping element can have a through hole which is aligned with the middle of the three elongated holes in the lower part, so that the upper part can be fastened to the lower part and optionally to a bottom profile side of the longitudinal groove using a fastener, preferably a screw, which extends through the upper part and the middle elongated hole and optionally into the bottom profile side. The fastening means can particularly preferably be a self-tapping screw.

The lower part can have a sliding base which is positively received in the longitudinal groove in the direction which extends perpendicular to the longitudinal direction of the longitudinal groove and perpendicular to the depth of the longitudinal groove. In this case, the longitudinal groove can preferably have a U-shaped cross section and thus be designed without an undercut. The longitudinal groove can be a bottom profile side of the profile strut, which delimits the longitudinal groove on the bottom side. Two parallel, spaced, opposite side walls of the longitudinal groove can extend from the bottom side of the profile in a direction perpendicular to the bottom side of the profile.

Figur 1

eine Querschnittsansicht einer beispielhaften Profilstrebe;

Figur 2

eine Querschnittsansicht einer weiteren Ausführungsform einer Profilstrebe;

Figur 3

eine beispielhafte Ausführungsform eines Querverbinders;

Figur 4

eine beispielhafte Ausführungsform eines Randhalters;

Figur 5

eine beispielhafte Ausführungsform eines Unterteils;

Figur 6

eine beispielhafte Ausführungsform eines Oberteils;

Figur 7

die Seitenansicht einer beispielhaften Ausführungsform für ein Profilsystem;

Figur 8

eine weitere Ausführungsform eines Profilsystems; und

Figur 9

eine beispielhafte Ausführungsform für eine Terrassenbodenunterkonstruktion.

The sliding base can bear against the parallel side walls of the longitudinal groove with sliding surfaces on its opposite longitudinal sides. The opposite longitudinal sides can otherwise be designed without contours, so that the sliding base can be displaced in the longitudinal groove essentially without resistance. Further details of the invention are explained with reference to the figures below. It shows:

figure 1

a cross-sectional view of an exemplary channel strut;

figure 2

a cross-sectional view of a further embodiment of a profile strut;

figure 3

an exemplary embodiment of a cross-connector;

figure 4

an exemplary embodiment of an edge holder;

figure 5

an exemplary embodiment of a base;

figure 6

an exemplary embodiment of a top;

figure 7

the side view of an exemplary embodiment for a profile system;

figure 8

another embodiment of a profile system; and

figure 9

an exemplary embodiment for a terrace floor substructure.

The figure 1 shows an exemplary embodiment of a profile strut 3 in the cross-sectional view. This is designed as a hollow profile with a substantially rectangular cross section. The profile strut 3 can be designed, for example, as an extruded profile and accordingly have a constant cross section over its entire length. figure 2 shows, on the other hand, a profile strut that basically has the same functionality as in figure 1 has shown profile strut 3, but is designed to be more compact in terms of their height in the direction of insertion into the groove 5.

The profile strut 3 has a receptacle 21 for a cross connector (not shown) on its two opposite vertical sides 20 . The receptacle 21 is designed as an undercut retaining groove 24 . The undercut retaining groove 24 has a Undercut 29 on opposite vertical sides. A slot nut can engage behind the undercut 29 in order to lock a transverse connector and/or an edge holder.

A suitable cross-connector 22 is in figure 3 shown. A suitable edge holder 23 is in figure 4 shown. The components 22 , 23 have the sliding block 46 on their side 25 facing the undercut groove 5 . In particular, the sliding block 46 extends from the side 25 and is arranged at end faces 27 spaced from the side 25 to allow the sliding block 46 to engage the undercut 29 . The end faces 27 can be embodied as spherical or circularly contoured friction surfaces, via which the sliding block 46 rests in frictional engagement on the inner sides 28 of the undercut 29 in order to lock the respective component 22, 23 in a locking position in which the sliding block 46 is screwed into the undercut groove 5 in a vertical orientation.

Following the geometry of the undercut groove 5 and the sliding block 46, the locking position and the release position of the sliding block or the respective component 22, 23 are positions rotated by 90° to one another. In particular, the retaining shoe 30 of the connector 22 can be aligned with its clear opening upwards when the cross connector 22 is in the locking position, in which the two end faces 27 of the sliding block 46 are arranged vertically one above the other and accordingly bear against the inner sides 28 of the undercut 29 with a friction fit. In the release position rotated by 90°, the sliding block 46 lies completely in the clear opening 26 of the undercut groove 5, so that the component 22, 23 with its sliding block 46 can be removed from the undercut groove 5.

The profile strut 3 also has a longitudinal groove 5 on its upper side for receiving an element 4 for fastening and/or aligning floor coverings. Exemplary embodiments for an upper part 6 and a lower part 10 of such an element 4 are shown in FIGS figures 5 and 6 shown. The groove 5 has a bottom profile side 15 and parallel opposite side walls 17, the dimensions of the groove 5 being dimensioned such that, for example, in a form-fitting manner, the lower part 10 according to FIG figure 5 can record, so this only in the vertical to the plane of the drawing figure 1 aligned direction within the longitudinal groove 5 is displaceable. On the one facing away from the groove 5 On the outside, the side walls 17 each have a further undercut groove 47 for receiving a sealing element 45 (cf. figure 8 ).

The transverse connector 22 and the edge holder 23 each have a bottom side 31 and side walls 32 which are spaced apart in parallel. However, the two components 22, 23 also differ in particular in terms of their mounting position in relation to a profile strut 3, as is shown, for example, in figure 8 is shown. While the cross connector 22 with its retaining shoe 30 is set up to accommodate a profiled strut 3 or one end of a profiled strut 3, the edge holder 23 serves, for example, to accommodate a spacer 34 (cf. figure 8 ) or a base holder 38 (cf. figure 9 ).

On each of its opposite side walls 32, the transverse connector 22 has an opening 33 in the form of an elongated hole, which serves as a passage for a fastener, for example a self-tapping screw 14 (cf. figure 8 ) is designed to hold the locking of one end of a profile strut 3 perpendicular to a further profile strut 3, in which the cross connector 22 is suspended via the undercut groove 5. In contrast, the edge holder 23 has a depression 49 on its upper side, in which a support side 35, for example of a spacer 34 or a base holder 38, can be accommodated.

The edge holder 23 has on each of its parallel, opposite side walls 32 an undercut groove open to the outside or a top-hat rail 50 placed thereon. The undercut groove or the fitted top-hat rail 50 can be used to fix a cross-connector, for example the cross-connector 22 according to FIG figure 3 . The undercut groove or the attached top hat rail 50 can be aligned with the undercut retaining groove 24 of a profile strut, so that the same mounting height of the undercut groove or the attached top hat rail 50 and the retaining groove 24 is provided.

figure 5 12 illustrates an exemplary embodiment of a base 10 of an element 4 for fastening and/or aligning floor coverings. The lower part 10 has three parallel elongated holes 12 and is otherwise designed in such a way that it is essentially form-fitting in a groove 5 (cf. figures 1 and 2 ) a profile strut 3 to be included. For this purpose, the lower part 10 has a sliding surface 19 on opposite longitudinal sides 18, via which the Lower part 10 on the side walls 17 of the groove 5 slidably comes to rest. Both the side walls 17 and the sliding surfaces 19 are preferably designed without contours in order to achieve the best possible sliding behavior of the lower part 10 in the groove 5 .

The figure 6 shows an upper part 6, which has a spacer 7. Alternatively, the upper part 6 can also be set up to have a clamping element 8 which is set up to engage in the lateral groove of a floor covering in order to fix the floor covering to the profile system 2 (cf. figure 7 ). The upper part 6 has on its side facing the lower part 10 a pin 13 with which the upper part 6 can engage in the middle of the three grooves 12 of the lower part 10 . The pin 13 and thus the upper part 6 can be displaced along the middle groove 12 . The width of the middle groove 12 can correspond to the diameter of the pin 13 .

Since the grooves 12 and in particular the central groove 12 extend perpendicularly to the longitudinal sides 18 or the sliding surfaces 19 of the lower part 10, along which the lower part 10 can be displaced in the longitudinal direction of the profile 3 in the groove 5, the adjustability of the pin 13 along the central groove 12 means that the upper part 6 can be adjusted in the direction perpendicular to the longitudinal direction of the groove 5 and thus the position of the spacer cross 7 on the upper side of the upper part 6 is adjustable both in the longitudinal direction of the groove and perpendicular to it, for example to be able to react to manufacturing tolerances of large floor covering formats.

In addition, the upper part 6 has a through hole 9 on opposite sides of the pin 13, which is aligned with the two outer elongated holes 12 of the lower part 10 in a clear orientation in the direction of rotation about the longitudinal axis of the pin 13 in relation to the lower part 10, so that an exact positioning of the upper part 6 in relation to the lower part 10 in the direction of rotation is specified. In the flush alignment of the openings 9 with the outer elongated holes 12, fastening means, for example self-tapping screws, can be screwed through the upper part 6, the lower part 10 and into the bottom profile side 15 of the profile strut 3 in order to lock the upper part to the lower part and to fasten the element 4 consisting of the upper part 6 and lower part 10 to the profile 3.

The figure 8 can also be seen that at the top of the profile strut 3 another undercut groove 47 on the opposite longitudinal sides of the Profile strut 3 is designed to accommodate a plug-in seal 45. A spacer 34 is inserted into the depression 49 of the edge holder 23 and is supported with a wall connection 36 via its support surface 37 on a building wall, for example.

The figure 9 finally shows a patio floor substructure 1, in which a profile system 2 of the type described above is supported on a pedestal 200. In particular, the sub-support frame formed from the profile struts 3 has a pedestal bearing 200 at least on its outer circumference, on which the sub-support frame is supported. A further fastening means 42 is fastened to the pedestal bearing 200 and extends from the pedestal bearing 200 in the direction of a panel 100 . The terrace floor substructure 1 also has a base holder 38 which rests on the edge holder 23 with its support side 35 . At the end of the support side facing away from the edge holder 23 , the base holder has a fastening means 39 for a panel 100 of a vertical facing of the terrace floor substructure 1 . The fastening means 39 is set up to engage over the panels 100 at their upper longitudinal edge 101 . For this purpose, the fastening means has a U-shaped receptacle 40 for the panels 100 on its underside facing the upper longitudinal edge 101 of the panels 100 .

The base holder 38 also has, at the end of the support side 35 facing away from the edge holder 23, a cover strip 41 which extends in the vertical direction. The cover strip covers on the one hand an upper longitudinal edge 101 of the panels 100 and on the other hand a free edge of a floor covering (not shown) resting on the supporting frame.

The further fastening means 42 extends from the pedestal bearing 200 in the direction of the panels 100 and has a further receptacle 43 for the panels 100 on its upper side facing the lower longitudinal edge 102 of the panels 100 . The U-shaped receptacle 40 and the further receptacle 43 are aligned with one another and are thus prepared to cover the panels 100 in a vertical orientation in an upper edge of the terrace floor substructure 100 and an underside of the pedestal bearing 200 .

Reference list:

1

Terrace floor substructure

2

profile system

3

profile brace

4

element

5

longitudinal groove

6

top

7

spacer

8th

clamping element

9

through hole

10

lower part

11

sliding guide

12

Long hole

13

cones

14

fasteners

15

bottom profile side

16

sliding socket

17

Side wall

18

long side

19

sliding surface

20

vertical side

21

Recording

22

cross connector

23

edge holder

24

retaining groove

25

Page

26

clear opening

27

face

28

inside

29

undercut

30

retaining shoe

31

horizontal bottom side

32

Side wall

33

breakthrough

34

spacers

35

bearing side

36

wall connection

37

support surface

38

socket holder

39

fasteners

40

U-shaped mount

41

fascia bar

42

fasteners

43

further recording

44

opening

45

sealing element

46

slot nut

47

another undercut groove

48

profile adapter

49

deepening

50

undercut groove/top hat rail

100

panels

101

upper longitudinal edge

102

lower longitudinal edge

200

pedestals

Claims (13)

1. A terrace floor substructure (1) with a sub-support frame for floor coverings, the sub-support frame comprising profiled struts (3) and a cross connector (22) for arranging a profiled strut as a cross profile and/or an edge holder (23) on the outer periphery of the sub-support frame for supporting a spacer, the profile struts (3) having, on at least one of two opposite vertical sides (20), a receptacle (21) for the cross connector (22) and/or the edge holder (23), the receptacle (21) being or having an undercut retaining groove (24) in which the cross connector (22) and/or the edge holder (23) is locked,

   wherein the cross connector (22) or the edge holder (23) has a sliding block (46) on a side (25) facing the undercut retaining groove (24),

   characterized in that the sliding block (46) is rigidly connected to the side (25) facing the undercut retaining groove (24) and is rotatably received in the retaining groove (24) between a release position and a locking position.
2. The terrace floor substructure (1) of claim 1, wherein the sliding block (46) engages behind the retaining groove (24) in the locking position and is fully aligned with a clear opening (26) of the undercut retaining groove (24) in the release position.
3. The terrace floor substructure (1) according to any one of claims 1 to 2, wherein the sliding block (46), in the locking position, has opposite short end faces (27) frictionally engaging opposite inner faces (28) of an undercut (29) of the undercut retaining groove (24).
4. The terrace floor substructure (1) according to any one of the preceding claims, wherein the cross connector (22) is formed as a retaining shoe (30) open to the top of the subframe.
5. The terrace floor substructure (1) of claim 4, wherein the retaining shoe (30) has a horizontal bottom side (31) and two side walls (32) extending parallel to each other and perpendicular to the bottom side (31) at opposite edges of the bottom side (31).
6. The terrace floor substructure (1) according to claim 5, wherein at least one of the side walls (32) has an aperture (33) for a fastener (14), preferably a self-tapping screw, the aperture (33) preferably being elongated hole-shaped with a horizontal direction of extension.
7. The terrace floor substructure (1) according to any one of claims 1 to 3, wherein the at least one edge holder (23) is arranged on the outer periphery of the subframe.
8. The terrace floor substructure (1) according to claim 7, wherein at least one spacer (34) rests with a support side (35) on the edge holder (23) and has a wall connection (36) with a support surface (37) at an end of the support side (35) facing away from the edge holder (23).
9. The terrace floor substructure (1) according to any one of claims 1 to 3 or 7, which has a base holder (38) which rests with a support side (35) on the edge holder (23) and, at an end of the support side (35) facing away from the edge holder (23), has a fastening means (39) for a panel (100) of a vertical facing of the terrace floor substructure (1).
10. The terrace floor substructure (1) according to claim 9, wherein the fastening means (39) is adapted to engage over a panel (100) of a vertical facing at its upper longitudinal edge (101), for which purpose the fastening means (39) has a U-shaped receptacle (40) for the panel (100) on its underside facing the upper longitudinal edge (101) of the panel (100).
11. The terrace floor substructure (1) according to claim 10, wherein the base holder (38) has, at its end of the support side (35) facing away from the edge holder (23), a cover strip (41) which extends in the vertical direction and is arranged to cover, on the one hand, an upper longitudinal edge (101) of a panel (100) of a vertical facing of the terrace floor substructure (1) and, on the other hand, a free edge of a floor covering resting on the substructure.
12. The terrace floor substructure (1) according to claim 10 or 11, wherein the substructure frame is supported at least at its outer circumference on at least one stilt bearing (200), to which a further fastening means (42) is attached, which extends from the stilt bearing (200) in the direction of the panels (100) and, on its upper side facing a lower longitudinal edge (102) of the panels (100) opposite the upper longitudinal edge (101), has a further U-shaped receptacle (43) for the panels (100), the U-shaped receptacle (40) and the further U-shaped receptacle (43) being arranged with their mutually aligned openings (44) facing one another.
13. The terrace floor substructure (1) according to any one of claims 8 to 12, wherein the support side (35) has an elongated hole-shaped aperture extending in the direction of connection between the wall connection (36) and the undercut retaining groove (24).

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