Patent Application
20230235568
The present disclosed subject matter relates to a fastening system for covering elements, comprising an anchoring profiled element that can be mounted to a substructure and a clip element that can be mounted to the covering element and latched to the anchoring profiled element.
Numerous clip systems are already known for fastening covering elements, e.g. for fastening façade strips to façades, wall panels to internal walls, floorboards to floors, etc. These known systems are either complex to manufacture, laborious to mount, or not sufficiently adjustable and/or durable.
The aim of the disclosed subject matter is to provide an improved fastening system which overcomes the drawbacks of the prior art.
This aim is achieved by a fastening system of the type mentioned at the outset which, according to the disclosed subject matter, is distinguished in that the anchoring profiled element has at least one latching protrusion on each of two opposite faces and the clip element has the shape of a U with a central web and two legs, wherein, in the latched position, the clip element engages over the anchoring profiled element in the manner of a clamp and each leg latches to a latching protrusion in the manner of a snap hook.
The fastening system of the disclosed subject matter makes it possible to fasten a covering element to a substructure, e.g. a slatted frame, a wall, a floor, etc., in a simple manner and to securely retain it thereon. The two parts, i.e. the anchoring profiled element and the clip element, are simple to manufacture and the anchoring profiled element can be produced to any length. In a first variant of the disclosed subject matter, one long, continuous anchoring profiled element can be used for a plurality of clip elements, for instance, such that the anchoring profiled elements themselves form a slatted frame, so to speak, onto which the covering elements can be clipped by means of the clip elements. In an alternative variant, one separate, short anchoring profiled element can be used per clip element, such that rainwater can penetrate and drain off unhindered between individual, spaced-apart fastening systems each composed of one clip element and one anchoring profiled element.
In the first variant, the length of the anchoring profiled element in the longitudinal profile direction is optionally at least twice, e.g. at least three times, the length of a clip element, the fastening system comprising at least two clip elements per anchoring profiled element. In the second variant, the anchoring profiled element and the clip element are optionally substantially the same length in the longitudinal profile direction.
In an advantageous embodiment of the disclosed subject matter, the end faces of the anchoring profiled element are configured as mutually complementary plug-in connections, by means of which two anchoring profiled elements can be plugged together with a press fit in the longitudinal profile direction. As a result, two fastening systems, e.g. each composed of one clip element and one anchoring profiled element, can be plugged together to form one wider fastening system that is twice as strong, for example in order to fasten heavy covering elements.
According to a further feature of the disclosed subject matter, on its rear face facing away from the legs, the web of the clip element bears at least one projecting rib, which is configured to engage in a groove in the covering element with a press fit. If the covering element has a groove that is longer than the rib, for example a groove that extends over the entire length of its rear face, the covering element can be attached to the clip element at any point along the groove and can thus be adjusted accordingly.
The rib is optionally provided with channels or a latching lug, e.g. on its two flat faces, in order to ensure that the covering element is retained effectively.
In a further embodiment, the rear face can bear two parallel ribs, which are provided with latching lugs pointing away from one another at their protruding ends and are configured to engage in a sprung manner in a groove in the covering element that is T-shaped in cross section. As a result, the covering element can be clipped to the clip element.
The latching protrusions of the anchoring profiled element can, for example, be formed at the two opposite end faces of the anchoring profiled element. Alternatively, however, said faces of the anchoring profiled element, which bear the latching protrusions, extend in parallel with the longitudinal profile direction of the anchoring profiled element. As a result, the latching protrusions can be formed as parts of the profile cross section passing through in the longitudinal profile direction and the clip element can be clipped on at any point in the longitudinal profile direction of the anchoring element. This is particularly useful in any variant of the fastening system in which a longer anchoring profiled element shared by a plurality of clip elements is used, which forms a slatted frame for the covering elements, so to speak.
According to a further embodiment of the disclosed subject matter, the anchoring profiled element bears one connecting part and the clip element bears the other connecting part of a tongue-and-groove joint, which blocks the clip element from shifting in the longitudinal profile direction of the anchoring profiled element in the position in which the clip element is latched to the anchoring profiled element. In any variant of the fastening system in which the anchoring profiled element is the same length as the clip element, this prevents the clip element and anchoring profiled element from slipping or only partially overlapping in the longitudinal profile direction. In the other variant of the fastening system comprising a longer anchoring profiled element passing through a plurality of clip elements, a regular arrangement of the clip elements and thus the covering elements can be predefined by means of tongue-and-groove joints of this kind.
It is particularly beneficial for the legs to latch releasably to the respective latching protrusion. As a result, the covering elements can also be removed from the substructure again, for example for cleaning, repair, or replacement.
It is particularly advantageous for the anchoring profiled element to be provided with at least one groove or through-hole extending in the longitudinal profile direction for leading through a cable, pipe, cable pull, or the like. The anchoring profiled elements can thus be simultaneously used for fixing installations in place or for mechanical tensioning behind the covering elements.
The disclosed subject matter will be explained in greater detail in the following with reference to exemplary embodiments shown in the accompanying drawings, in which:
In the example shown, the covering elements 2 are façade strips which are intended to be attached vertically to the external wall of a building, for example, and each have a longitudinal groove 4 on its rear face. The façade strips 2 are, for example, fastened to the substructure 3 with consistent mutual spacing a by means of two or more fastening systems 1 distributed over its longitudinal extension.
Each fastening system 1 comprises an anchoring profiled element 5 that can be mounted to the substructure 3 and a clip element 6 that can be mounted to a covering element 2 and latched to the anchoring profiled element 5.
In the embodiment in
In the example shown, the latching protrusions 13, 14 each have a cross section in the approximate shape of an isosceles triangle on the lateral faces 9, 10 when viewed in the longitudinal profile direction R, i.e. are chamfered relative to the clipping direction C of the clip element 6 both on its upper face 16 and on its lower face 17.
The anchoring profiled element 5 can be glued to, nailed to, or embedded in the substructure, for example set into plaster or concrete therein. In the example shown, the anchoring profiled element 5 is screwed to the substructure 3 and, for this purpose, comprises one or more holes 18, extending from the upper face to the lower face 11, 12, for corresponding fastening screws.
The clip element 6 is substantially in the shape of a U having a central web 19 and two legs 20, 21 hanging down from the ends thereof. The legs 20, 21 have latching lugs 22, 23 at their ends which each point inwards, i.e. face one another, and thus form snap hooks, because the legs 20, 21 and/or the web 19 are slightly resilient.
In the position (
Owing to the largely uniform configuration of the upper and lateral faces 9-11 of the anchoring profiled element 5 in the longitudinal profile direction R, the clip element 6 latched to the anchoring profiled element 5 can be shifted in the longitudinal profile direction R, for example for adjustment purposes. If this is not desired, at least one tongue-and-groove joint, which blocks this kind of shifting, can additionally be provided between the anchoring profiled element 5 and the clip element 6. In this case, one of the parts out of the anchoring profiled element 5 and the clip element 6 bears one connecting part and the other part bears the other connecting part of the tongue-and-groove joint.
In the example shown, for this purpose, a groove 25 formed between two protrusions 24, in which a tongue 26 formed on the inner faces of the legs 20, 21 engages in each case, is provided on the upper faces 16 of the latching protrusions 13, 14 of the anchoring profiled element 5 in order to fix the clip element 6 in the latching position in the longitudinal profile direction R. It goes without saying that the tongue-and-groove joint 25, 26 can also be produced in another way by accordingly complementary configurations between the anchoring profiled element 5 and the clip element 6.
For mounting the clip element 6 to the respective covering element 2, the web 19 bears a projecting rib 28 on its rear face 27 facing away from the legs 20, 22. The rib 28 engages in the groove 4 in the covering element 2 with a press fit. In the example shown, the rib 28 is approximately in the shape of a fin and has channels or latching lugs 31 on its two flat faces 29, 30 which improve the press fit when the rib 28 is pressed into the groove 4 in the covering element 2.
In order to improve the retention of the covering elements 2 on the clip elements 6, the ribs 28 can additionally be glued into the grooves 4. It is also possible to additionally screw the clip element 6 to the covering element 2, for example by means of screws that penetrate the web 19 and reach into the rear face of the covering element 2 or by means of screws which are screwed into a covering element 2 from the side and penetrate the rib 28. For this purpose, the rib 28 can also comprise holes 32 for these screws to pass through.
During mounting, in the first step the anchoring profiled elements 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 latched to the mounted anchoring profiled elements 5 and the covering elements 2 are then attached to the ribs 28, or the clip elements 6 comprising the ribs 28 are first inserted into the grooves 4 in the covering elements 2 and then the covering elements 2 together with the clip elements 6 are latched to the anchoring profiled elements 5.
For heavy covering elements 2, for example heavy façade sheets, a plurality of fastening systems 1 can also be connected to form a larger double, triple, or multiple fastening system. To do this, the anchoring profiled elements 5 of a plurality of fastening systems 1 can be plugged together in the manner of building blocks, for example. For this purpose, the end faces 7, 8 of the anchoring profiled elements 5 are each equipped with mutually complementary plug-in connections, by means of which two anchoring profiled elements 5 are plugged together with a press fit in the longitudinal profile direction R in each case. 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 profiled elements 5 plugged together in this way can be fastened to the substructure 3 more easily than a plurality of individual anchoring profiled elements 5. For example, of a group of plugged-together anchoring profiled elements 5, only the outermost anchoring profiled elements 5 need to be screwed to the substructure 3, while the middle anchoring profiled elements 5 of the anchoring profiled elements 5 at the edge of the group are retained by the plug-in connections 15, 33.
It goes without saying that the plug-in connections 15, 33 can also be provided by other complementary configurations of the end faces 7, 8 of the anchoring profiled elements 5, in particular also by configuring the end faces 7, 8 to have mirror-inverted symmetry.
The anchoring profiled element 5′ of the fastening system 1 in
The anchoring profiled element 5′ can be provided in prefabricated lengths or can be accordingly cut to length on site when being mounted. In order to predefine the intervals a between the covering elements 2, the anchoring profiled element 5′ can, for example, be equipped with one of the parts (grooves 25 or tongues 26) of tongue-and-groove joints 25, 26 with consistent spacing a. It is also possible for the long anchoring profiled elements 5′ in
The anchoring profiled elements 5, 5′, 5″ and clip elements 6, 6′, 6″ can be made of any suitable material, for example plastics material or metal, such as steel or aluminum.
The disclosed subject matter is not limited to the embodiments set out, but instead covers all the variants, modifications, and the combinations thereof that fall within the scope of the accompanying claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 20195309.8 | Sep 2020 | EP | regional |
This application is a National Phase application of International Application No. PCT/EP2021/070381 filed Jul. 21, 2021 which claims priority to the European Patent Application No. 20 195 309.8 filed Sep. 9, 2020, the disclosures of which are incorporated herein by reference.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/EP2021/070381 | 7/21/2021 | WO |
