EP4130409B1 - Fastening system for covering elements - Google Patents

Description

The present invention relates to a fastening system for cladding elements, with an anchoring profile that can be mounted on a substructure and a clip element that can be mounted on the cladding element and locked with the anchoring profile.

Numerous clip systems are already known for attaching cladding elements, e.g. facade strips to facades, wall panels to interior walls, floorboards to floors, etc.

The document US 4,400,922 A discloses all features of the preamble of claim 1.

For example, Scripture reveals WO 2015/140475 A1 U-shaped clip elements with two downward-pointing legs for anchoring to a rail-shaped anchoring profile of a substructure and a back for clipping the cladding element. The known systems are either complex to manufacture, laborious to assemble or not sufficiently adjustable and/or durable. The aim of the invention is to create an improved fastening system which overcomes the disadvantages of the prior art.

This goal is achieved with a fastening system of the type mentioned in the introduction, the anchoring profile having at least one locking projection on two opposite sides and the clip element having the shape of a U with a central web and two legs, the clip element engaging over the anchoring profile like a clip in the locking position and Each leg is locked to a locking projection in the manner of a snap hook, with the fastening system according to the invention characterized in that the end faces of the anchoring profile are designed as mutually complementary plug connections, via which two anchoring profiles can be plugged together in the longitudinal direction of the profile with a clamp fit.

The fastening system of the invention allows a cladding element to be easily installed and securely held on a substructure, e.g. a slatted frame, a wall, a floor, etc. The two parts anchoring profile and clip element are easy to manufacture and the anchoring profile can be produced in any length. In a first variant of the invention, a long, continuous anchoring profile can be used for several clip elements, so that the anchoring profiles themselves form a slatted frame, so to speak, onto which the cladding elements can be clipped using the clip elements. Or, in an alternative variant, a separate short anchoring profile can be used for each clip element, so that rainwater can pass through and drain unhindered between individual, spaced-apart fastening systems, each consisting of a clip element and an anchoring profile.

In the first variant, the length of the anchoring profile in the longitudinal direction of the profile is preferably at least twice, particularly preferably at least three times, the length of a clip element, the fastening system comprising at least two clip elements per anchoring profile. In the second variant The anchoring profile and the clip element preferably have essentially the same length in the longitudinal direction of the profile.

According to the invention, the end faces of the anchoring profile are designed as mutually complementary plug connections, via which two anchoring profiles can be plugged together in the longitudinal direction of the profile with a clamp fit. This means that two fastening systems, e.g. each consisting of a clip element and an anchoring profile, can be put together to form a wider fastening system that is twice as strong, for example to fasten heavy cladding elements.

According to a further preferred feature of the invention, the web of the clip element carries on its back facing away from the legs at least one projecting rib which is designed to engage with a clamping fit in a groove of the cladding element. If the cladding element has a groove that is longer than the rib, for example a groove running over the entire length of its rear side, the cladding element can be attached to the clip element at any point along the groove and thus adjusted accordingly.

The rib is preferably provided with grooves or locking lugs, particularly preferably on its two flat sides, in order to ensure a good hold of the cladding element.

In a further embodiment, the back can carry two parallel ribs, which are provided with locking lugs pointing away from one another at their projecting ends and are designed to resiliently fit into a groove of the cladding element with a T-shaped cross section to intervene. This allows the cladding element to be clipped onto the clip element.

The locking projections of the anchoring profile can be formed, for example, on the two opposite end faces of the anchoring profile. However, the mentioned sides of the anchoring profile, which carry the locking projections, preferably run parallel to the longitudinal direction of the anchoring profile. As a result, the locking projections can be designed as parts of the profile cross section that pass through in the longitudinal direction of the profile and the clip element can be clipped on at any point along the longitudinal direction of the profile of the anchoring element. This is particularly useful in that variant of the fastening system in which a longer anchoring profile, common to several clip elements, is used, which, as it were, forms a slatted frame for the cladding elements.

According to a further preferred embodiment of the invention, the anchoring profile carries one connecting part and the clip element carries the other connecting part of a tongue and groove connection, which blocks a displacement of the clip element in the longitudinal direction of the anchoring profile in the locking position of the clip element on the anchoring profile. In that variant of the fastening system in which the anchoring profile has the same length as the clip element, this prevents the clip element and the anchoring profile from slipping or only partially overlapping in the longitudinal direction of the profile. In the other variant of the fastening system With a longer anchoring profile that extends over several clip elements, a regular arrangement of the clip elements and thus the cladding elements can be predefined using such tongue and groove connections.

It is particularly advantageous if the legs lock releasably on the respective locking projection. This means that the cladding elements can also be removed from the substructure again, for example for cleaning, repairs or replacement.

It is particularly advantageous if the anchoring profile has at least one groove or opening running in the longitudinal direction of the profile for passing a cable, pipe, cable or the like. is provided. The anchoring profiles can also be used to fix installations or mechanical tension behind the cladding elements.

• die Fig. 1 und 2 eine erste Ausführungsform des Befestigungssystems der Erfindung in einer gesprengten Perspektivansicht (Fig. 1) bzw. einer beispielhaften Verwendungsstellung perspektivisch (Fig. 2);
• die Fig. 3 und 4 eine zweite Ausführungsform des Befestigungssystems der Erfindung in einer gesprengten Perspektivansicht (Fig. 3) bzw. einer beispielhaften Verwendungsstellung perspektivisch (Fig. 4);
• die Fig. 5 und 6 eine alternative Ausführungsform des Clipelements der Befestigungssysteme der Fig. 1 bis 4 in einer Perspektivansicht (Fig. 5) bzw. einer beispielhaften Verwendungsstellung perspektivisch (Fig. 6);
• Fig. 7 noch eine weitere Ausführungsform des Clipelements der Befestigungssysteme der Fig. 1 bis 4 in einer Perspektivansicht; und
• Fig. 8 eine weitere Ausführungsform des Verankerungselements der Befestigungssysteme der Fig. 1 bis 4 in einer Verwendungsstellung perspektivisch.

The invention is explained in more detail below using exemplary embodiments shown in the accompanying drawings. Shown in the drawings:

• the Fig. 1 and 2 a first embodiment of the fastening system of the invention in an exploded perspective view ( Fig. 1 ) or an exemplary usage position in perspective ( Fig. 2 );
• the 3 and 4 a second embodiment of the fastening system of the invention in an exploded perspective view ( Fig. 3 ) or an exemplary usage position in perspective ( Fig. 4 );
• the 5 and 6 an alternative embodiment of the clip element of the fastening systems Fig. 1 to 4 in a perspective view ( Fig. 5 ) or an exemplary usage position in perspective ( Fig. 6 );
• Fig. 7 yet another embodiment of the clip element of the fastening systems Fig. 1 to 4 in a perspective view; and
• Fig. 8 a further embodiment of the anchoring element of the fastening systems Fig. 1 to 4 in a usage position perspective.

In the Fig. 1 and 2 a fastening system 1 for fastening cladding elements 2 to a substructure 3 is shown. The cladding elements 2 can be, for example, facade strips, facade panels, wall panels, floorboards, tiles, etc. The substructure 3 can be, for example, a slatted frame, an interior or exterior wall, a screed, etc.

In the example shown, the cladding elements 2 are facade strips that are to be attached vertically to the outer wall of a building, for example, and each have a longitudinal groove 4 on their back. The facade strips 2 are, for example, at a regular mutual distance a with the help of two or more Fastening systems 1 distributed along their longitudinal extent are attached to the substructure 3.

Each fastening system 1 includes an anchoring profile 5 that can be mounted on the substructure 3 and one on one Cladding element 2 mountable clip element 6, which can be locked with the anchoring profile 5.

The anchoring profile 5 has in the embodiment of Fig. 1 and 2 the shape of a small block with a profile longitudinal direction R, profile end faces 7, 8, lateral sides 9, 10 and top and bottom sides 11, 12. On the opposite lateral sides 9, 10, the anchoring profile 5 each has at least one locking projection 13, 14 . However, the locking projections 13, 14 could also be arranged on the end faces 7, 8, for example formed by central depressions or undercuts 15 in the end faces 7, 8.

In the example shown, the locking projections 13, 14 on the lateral sides 9, 10 each have an approximately isosceles-triangular cross-section - seen in the longitudinal direction R of the profile, i.e. are chamfered on both their upper side 16 and their underside 17 with respect to the clipping direction C of the clip element 6 .

The anchoring profile 5 can be glued, nailed or embedded in the substructure, for example plastered or set in concrete. In the example shown, the anchoring profile 5 is screwed onto the substructure 3 and for this purpose has one or more holes 18 running through from the top to the bottom 11, 12 for corresponding fastening screws.

The clip element 6 essentially has the shape of a U with a central web 19 and two legs 20, 21 hanging from its ends. The legs 20, 21 have at their ends locking lugs 22, 23 that point inwards, ie facing each other, and thus form snap hooks - because the legs 20, 21 and/or the web 19 are slightly elastic.

In the locking position ( Fig. 2 ) of the clip element 6 on the anchoring profile 5, the clip element 6 engages over the anchoring profile 5 like a clip, with each snap hook leg 20, 21 locking on a locking projection 13, 14, more precisely: the locking lugs 22, 23 behind the locking projections 13, 14 on their undersides 17 come to the facility.

Due to the largely uniform design of the upper and lateral sides 9 - 11 of the anchoring profile 5 in the longitudinal direction R of the profile, the clip element 6 locked on the anchoring profile 5 can be moved in the longitudinal direction R of the profile, for example for adjustment purposes. If this is undesirable, at least one tongue and groove connection can additionally be provided between the anchoring profile 5 and clip element 6, which blocks such displacement. One of the parts anchoring profile 5 and clip element 6 carries one connecting part and the other part carries the other connecting part of the tongue and groove connection.

In the example shown, a groove 25 formed between two projections 24 is provided on the top sides 16 of the locking projections 13, 14 of the anchoring profile 5, into which a spring 26 formed on the inside of the legs 20, 21 engages in order to hold the clip element 6 in the To fix the locking position in the longitudinal direction R of the profile. It goes without saying that the tongue and groove connection 25, 26 can also be made in other ways can be constructed by correspondingly complementary configurations between the anchoring profile 5 and clip element 6.

To mount the clip element 6 on the respective cladding element 2, the web 19 carries a projecting rib 28 on its back 27 facing away from the legs 20, 22. The rib 28 engages with a clamp fit in the groove 4 of the cladding element 2. In the example shown, the rib 28 is approximately lamellar and has grooves or locking lugs 31 on its two flat sides 29, 30, which improve the clamping fit when the rib 28 is pressed into the groove 4 of the cladding element 2.

To improve the hold of the cladding elements 2 on the clip elements 6, the ribs 28 can also be glued into the grooves 4. It is also possible to additionally screw the clip element 6 to the cladding element 2, for example by means of screws passing through the web 19 and extending into the back of the cladding element 2 or by means of screws which are screwed laterally into a cladding element 2 and pass through the rib 28. For this purpose, the rib 28 can also have holes 32 for the passage of such screws.

During assembly, in the first step, the anchoring profiles 5 are anchored to the substructure 3, for example by means of screws through the holes 18. Then either the clip elements 6 are first locked to the assembled anchoring profiles 5 and then the cladding elements 2 are attached to the ribs 28, or it First, the clip elements 6 with the ribs 28 are inserted into the grooves 4 of the cladding elements 2 inserted and then the cladding elements 2 together with the clip elements 6 are locked onto the anchoring profiles 5.

For heavy cladding elements 2, for example heavy facade panels, several fastening systems 1 can also be connected to form a larger double, triple or multiple fastening system. For this purpose, for example, the anchoring profiles 5 of several fastening systems 1 can be put together like a building block. For this purpose, for example, the end faces 7, 8 of the anchoring profiles 5 can be equipped with mutually complementary plug connections, via which two anchoring profiles 5 can be plugged together in the longitudinal direction R of the profile with a clamp fit. For example, one end face 8 can be provided with pins 33, which can be inserted into recesses 15 in the other end face 7.

The anchoring profiles 5 plugged together in this way can be attached more easily to the substructure 3 than several individual anchoring profiles 5. For example, of a group of plugged-together anchoring profiles 5, only the outermost anchoring profiles 5 need to be screwed to the substructure 3, whereas the middle anchoring profiles 5 depend on the anchoring profiles 5 Edge of the group can be kept up via the plug connections 15, 33.

It goes without saying that the plug connections 15, 33 can also be achieved by other complementary configurations of the end faces 7, 8 of the anchoring profiles 5, in particular also through an oppositely symmetrical design of the end faces 7, 8.

In the 3 and 4 a further embodiment of the fastening system 1 is shown, the anchoring profile being slightly modified and designated by the reference number 5 '. Otherwise, the same reference numbers designate the same parts as in the Fig. 1 and 2 .

The anchoring profile 5 'of the fastening system 1 of 3 and 4 is significantly longer in the longitudinal direction R of the profile than a clip element 6 and can thus form a slatted frame itself, which is between the cladding elements 2 and a substructure 3 (in Fig. 4 not shown). Several clip elements 6 can therefore be locked onto an anchoring profile 5 ', for example at regular intervals a.

The anchoring profile 5' can be provided in pre-assembled lengths or cut to length on site during assembly. To predefine the distances a of the cladding elements 2 to be arranged, the anchoring profile 5 'can, for example, be equipped with one part (grooves 25 or tongues 26) of tongue and groove connections 25, 26 at regular intervals a. It is also possible that the long anchoring profiles 5 'of 3 and 4 be equipped on their end faces 7, 8 with complementary plug connections 15, 33 so that they can be plugged together to form even longer anchoring profiles.

In the 5 and 6 a further embodiment of the clip element 6 is shown, here designated by the reference numeral 6 '. The clip element 6 'carries on the back 27 of its web 19 two parallel ribs 28 lying next to one another at a mutual distance. The ribs 28 are each provided with locking lugs 34 pointing away from one another at their projecting, ie free, ends. Due to their slight elasticity and/or the slight elasticity of the web 19, the ribs 28 thus form spring hooks facing away from one another, which can snap resiliently into a groove 4 'of the cladding element 2 which is T-shaped in cross section ( Fig. 6 ).

Fig. 7 shows a simplified embodiment of the clip element, here designated by the reference numeral 6". The clip element 6" has no rib(s) 28 and is, for example, glued or screwed to the back of the cladding elements 2, for example with the help of holes 35 for the passage of screws. Such holes 35 can also be used in the clip elements 6, 6 '.

In Fig. 8 A further embodiment of the anchoring profile is shown, here designated by the reference number 5". The anchoring profile 5" is provided with one or more grooves or openings 36 running in the longitudinal direction R for the passage of cables, pipes, cables or the like. 37 equipped. This means that, for example, electrical installations, water pipe installations, mechanical actuations, Bowden cables, tension wires for tensioning, etc. can be routed behind a facade equipped with cladding elements 2.

The anchoring profiles 5, 5', 5" and clip elements 6, 6', 6" can be made from any suitable material, for example plastic or metal, such as steel or aluminum.

The invention is not limited to the illustrated embodiments, but includes all variants, modifications and combinations thereof that fall within the scope of the appended claims.

Claims (9)

1. A fastening system for covering elements, with an anchoring profiled element (5, 5', 5") that can be mounted to a substructure (3) and a clip element (6, 6', 6") that can be mounted to the covering element (2) and can be latched to the anchoring profiled element (5, 5', 5"), wherein the anchoring profiled element (5, 5', 5") has at least one latching protrusion (13, 14) on each of two opposite faces (7, 8; 9, 10) and the clip element (6, 6', 6") has the shape of a U with a central web (19) and two legs (20, 21), wherein, in the latched position, the clip element (6, 6', 6") engages over the anchoring profiled element (5, 5', 5") in the manner of a clamp and, thereby, each leg (20, 21) latches to a latching protrusion (13, 14) in the manner of a snap hook, characterized in that the end faces (7, 8) of the anchoring profiled element (5, 5', 5") are configured as mutually complementary plug-in connections (15, 33), by means of each of which two anchoring profiled elements (5, 5', 5") can be plugged together with a press fit in the longitudinal profile direction (R).
2. The fastening system according to claim 1, wherein the length of the anchoring profiled element (5') in the longitudinal profile direction (R) is at least twice, preferably at least three times, the length of a clip element (6, 6', 6"), wherein the fastening system (1) comprises at least two clip elements (6, 6', 6") per anchoring profiled element (5').
3. The fastening system according to claim 1, wherein the anchoring profiled element (5, 5") and the clip element (6, 6', 6") are substantially the same length in the longitudinal profile direction (R).
4. The fastening system according to any one of claims 1 to 3, wherein the web (19) bears, on its rear face (27) facing away from the legs (20, 21), at least one projecting rib (28) which is configured to engage in a groove (4, 4') of the covering element (2) with a press fit.
5. The fastening system according to claim 4, characterized in that the rear face (27) bears two parallel ribs (28) which are provided with latching lugs (34) pointing away from one another at their protruding ends and are configured to engage in a sprung manner in a groove (4') of the covering element (2) that is T-shaped in cross section.
6. The fastening system according to any one of claims 1 to 5, wherein said two opposite faces (9, 10) of the anchoring profiled element (5, 5', 5") extend in parallel with the longitudinal profile direction (R) of the anchoring profiled element (5, 5', 5").
7. The fastening system according to any one of claims 1 to 6, wherein the anchoring profiled element (5, 5', 5") bears one connecting part (25) and the clip element (6, 6', 6") bears the other connecting part (26) of a tongue-and-groove joint (25, 26) which blocks the clip element (6, 6', 6") from shifting in the longitudinal profile direction (R) of the anchoring profiled element (5, 5', 5") in the latched position of the clip element (6, 6', 6") on the anchoring profiled element (5, 5', 5").
8. The fastening system according to any one of claims 1 to 7, wherein the legs (20, 21) latch releasably to the respective latching protrusion (13, 14).
9. The fastening system according to any one of claims 1 to 8, wherein the anchoring profiled element (5, 5', 5") is provided with at least one groove (36) or through-hole extending in the longitudinal profile direction (R) for leading through a cable, pipe, cable pull, or the like (37).

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