EP2268870B1 - Mounting means for mounting natural stone, and method of mounting natural stone - Google Patents

Abstract

Natural stone cladding (10) with a plurality of strips (18.1, 18.2) for surface-parallel mounting on a surface to be clad, with a number of natural stone elements (11.1, 11.2) and a number of support holders (30.1, 30.2) and counterholders (20.1, 20.2). Each natural stone element (11.1, 11.2) comprises a visible front side and a rear side with a first machine-made longitudinal recess and a second machine-made longitudinal recess. Pairs of support holders (30.1, 30.2) are fastened to adjacent strips (18.1, 18.2) and one natural stone element (11.1, 11.2) is seated by the first longitudinal recess on these two support holders (30.1, 30.2). One each of the two support holders (30.1, 30.2) is seated a respective counterholder (20.1, 20.2), and each of the two counterholders (20.1, 20.2) engages in the second longitudinal recess (15) in order to secure the natural stone element (11.1, 11.2).

Description

The invention relates to mounting means for the assembly of natural stone elements, as well as a corresponding method. In particular, it is about the facade construction and corresponding natural stone cladding.

Natural stone cladding is increasingly being used, which, in addition to a special look, also ensures a permanent and clean solution. The trend today is toward smaller, belt-shaped natural stone elements 11.1, 11.2, 11.3, as in Fig. 1A can be recognized by a vertical house facade. These natural stone elements 11.1, 11.2, 11.3 are very expensive to assemble, which on the one hand drives the cost of such panels in the air and, on the other hand, can lead to inaccuracies in the installation set, which can interfere with the visual effect.

Often natural stone elements are mounted with so-called anchors on a wall, with one hole per anchor drilled in the wall and each anchor must be individually secured in these holes. The natural stone elements then typically back-side holes, which allow the natural stone elements aufzustecken on the anchor.

Other façade solutions work with glued natural stone elements. However, this type of facade cladding encounters some rejection, since the builders the durability of such adhesive solutions is questioned in changing weather conditions.

A mounting means according to the preamble of claim 1 is made EP 0621 382 A2 known, which is pre-assembled on tiles.

It is therefore the task of a mounting device, respectively corresponding mounting means to develop, which are easier to use and allow, depending on the wishes of the builder or architect to offer elegant and durable panels with natural stone elements.

According to the invention, the task remains to offer a solution that is stable and durable, but the assembly of natural stone elements should be easier than in previous approaches.

According to the invention, a mounting means is provided, the features of which can be deduced from claim 1. In addition, a natural stone cladding, the details of which can be found in claim 4, and a method provided, the details of which can be found in claim 5. Preferred embodiments can be found in the respective subclaims.

Fig. 1A

eine perspektivische Ansicht einer Fassade mit einer erfindungsgemässen Natursteinverkleidung der vertikalen Wandflächen;

Fig. 1B

eine perspektivische Ansicht einer Fassade mit einer erfindungsgemässen Natursteinverkleidung einer Untersicht;

Fig. 2

eine schematische Schnittansicht einer erfindungsgemässen Natursteinverkleidung;

Fig. 3A

eine schematische Vorderansicht eines ersten Gegenhalters einer erfindungsgemässen Natursteinverkleidung;

Fig. 3B

eine schematische Seitenansicht eines ersten Gegenhalters einer erfindungsgemässen Natursteinverkleidung;

Fig. 4A

eine schematische Vorderansicht eines ersten Traghalters einer erfindungsgemässen Natursteinverkleidung;

Fig. 4B

eine schematische Schnittansicht eines ersten Traghalters einer erfindungsgemässen Natursteinverkleidung;

Fig. 5

eine schematische Schnittansicht einer erfindungsgemässen Natursteinverkleidung bei der Montage;

Fig. 6

eine schematische Vorderansicht eines erfindungsgemässen Montagemittels;

Fig. 7

eine schematische Vorderansicht einer erfindungsgemässen Natursteinverkleidung bei der Montage;

Fig. 8A

eine schematische Vorderansicht eines Natursteinelements einer erfindungsgemässen Natursteinverkleidung;

Fig. 8B

eine schematische Schnittansicht eines Natursteinelements einer erfindungsgemässen Natursteinverkleidung;

Fig. 8C

eine schematische Ausschnittvergrösserung eines Natursteinelements einer erfindungsgemässen Natursteinverkleidung.

Further details and advantages of the invention will be described below with reference to embodiments and with reference to the drawings. Unless specific reference is made in the following description to a specific figure, what has been described refers to all embodiments. Show it:

Fig. 1A

a perspective view of a facade with an inventive natural stone cladding of the vertical wall surfaces;

Fig. 1B

a perspective view of a facade with an inventive natural stone cladding of a soffit;

Fig. 2

a schematic sectional view of a natural stone cladding according to the invention;

Fig. 3A

a schematic front view of a first counter-holder of a natural stone cladding according to the invention;

Fig. 3B

a schematic side view of a first counter-holder of a natural stone cladding according to the invention;

Fig. 4A

a schematic front view of a first support holder of an inventive natural stone cladding;

Fig. 4B

a schematic sectional view of a first support holder of a natural stone cladding according to the invention;

Fig. 5

a schematic sectional view of an inventive natural stone cladding during assembly;

Fig. 6

a schematic front view of an inventive mounting means;

Fig. 7

a schematic front view of a natural stone cladding according to the invention during assembly;

Fig. 8A

a schematic front view of a natural stone element of a natural stone cladding according to the invention;

Fig. 8B

a schematic sectional view of a natural stone element of an inventive natural stone cladding;

Fig. 8C

a schematic Ausschnittvergrösserung a natural stone element of a natural stone cladding according to the invention.

In Fig. 1A is a perspective view of a facade with an inventive natural stone cladding 10 shown. It is the terrace area of a house. The walls are lined with elongated, rectangular natural stone bars. Three of these so-called natural stone elements 11.1, 11.2, 11.3 and the corresponding joints 12.1, 12.2 are marked with reference numerals.

In Fig. 1B is indicated that, for example, a bottom view with an inventive natural stone cladding 10 can be provided.

In Fig. 2 is the section through the three natural stone elements 11.1, 11.2, 11.3 Fig. 1A shown.

The general structure of the novel natural stone cladding 10 according to the invention is described below. This structure is described by means of a vertical wall surface. However, the inventive natural stone cladding 10 can also be used on other surfaces, such as in Fig. 1B indicated. If the terms "wall", "vertical", "horizontal", etc. are used below, then these terms refer only to the execution of a wall covering. When cladding other surfaces, these terms should be adapted accordingly.

The natural stone cladding 10 has a plurality of strips (wall strips) 18, which are mounted wall-parallel to a wall 40 to be covered. In Fig. 2 Such a wall strip 18 is shown (two wall strips 18.1, 18.2 are in Fig. 7 to recognize). The wall bar 18 is seated in the example shown on the wall 40. The wall bar 18 can be attached to the wall 40, for example by means of dowels. Preferably in the wall strip 18 round or oblong holes (not shown in the figures) are provided which allow a simple and quick screwing or riveting the other mounting means 50, as will be described in more detail below. The support bracket 30 and / or counter-holder 20 can also be hooked or plugged into this wall bar 18.

On such a wall bar 18, a support bracket 30 can be attached to the desired height. In Fig. 2 It can be seen that the support holder is fixed by the reference numeral 30.2 with a rivet or screw 37 on the wall bar 18. The rivet or screw 37 may pass through a hole 35 (see FIG Fig. 4A, 4B ) are inserted through, which is provided in the support bracket 30.3. Each support holder 30 has at least one first projection 32, which is adapted to the natural stone element 11 to engage under so that the natural stone element 11 is seated on this projection 32 in the mounted state. In addition, the support holder 30 has a receiving area 36 which is designed for this purpose to receive a portion 24 of an anvil 20, as in Fig. 5 indicated schematically.

The counter-holder 20 has a slip-on region 24, which is designed so as to be complementary to the receiving region 36, or the attachment region, that can be pushed onto the receiving region 36 of the carrying holder 30 when mounting the slip-on region 24. Thus sits or is in the mounted state, the anvil 20 on the support bracket 30, as in Fig. 2 can be seen where, for example, a counter-holder 20.2 sits on a support bracket 30.2.

The counter-holder 20 has a second projection 22, which is designed to fix the natural stone element 11 in the mounted state on the back, as in FIG Fig. 2 is shown. In Fig. 2 the corresponding projections 22.1 of a lower counter-holder 20.1 and 22.2 of a central counter-holder 20.2 are shown.

Each natural stone element 11 has a visible front side 13 and a rear side 16 with a first, machine-made longitudinal recess 14 (also referred to here as horizontal recess) and with a second, machine-made longitudinal recess 15 (here also referred to as horizontal recess).

Such processed natural stone elements 11 are not yet. It comes to the production / processing of a special processing machine used, which created by differently salaried circular saw blades, the longitudinal recesses 14 and 15, and edited. The first machined longitudinal recess 14 is preferably made by a circular saw blade having a thickness SD, as in FIG Fig. 8C shown by a detail enlargement. This circular saw blade dives into the natural stone element 11 up to the desired depth from the rear and thus generates the recess 14 over the entire (horizontal) length LA.

It should be noted at this point that the length LA of the natural stone elements can vary. In Fig. 1A an example is shown in which each natural stone element 14 has a slightly different length.

Another circular saw blade emerges with a different inclination from behind into the natural stone element 11 in order to produce a surface 15. 1 of the second longitudinal recess 15. The second surface 15.2 of the longitudinal recess 15 is generated by a circular saw blade that is parallel to the main plane of the natural stone element 11.

Details of a first counter-holder 20 are the FIGS. 3A and 3B refer to. This counter-holder 20 has approximately the shape of an "L", which is upside down. In Fig. 3B can be seen from the side view that the anvil 20 as a projection 22 (here referred to as the second projection) formed leg which is like a nose is inclined slightly downwards. Due to the downward slope results in a bracket-like angle range 23, which is set back slightly. The second leg forms a Aufsteckbereich 24 with a rear side 21 or rear surface. The thickness D1 of the second leg is selected so that the attachment portion 24 of this leg fits behind the support bracket 30 when the support bracket 30 is attached to the wall bar 18. The length L1 of the slip-on region 24 is preferably selected such that it is slightly shorter than the length L2 of the receiving region 36. This ensures that the anvil 20 with its angular region 23 is not completely seated on the support holder 30. There are preferably corresponding spaces that are in Fig. 2 marked with Z1 and Z2.

In Fig. 5 is schematically indicated that the natural stone element 11 can be pushed onto the projection 32 by a movement P1. By the weight force P2, the natural stone element 11 is then pulled down (in a natural stone cladding of a vertical wall) and is thus supported by the support bracket 30. Thus, the natural stone element 11 is secured, respectively fixed, the counter-holder 30 is attached from above, as indicated by the arrow P3. Since the projection 22 of this counter-holder from above and behind in engages the longitudinal recess 15 of the natural stone element 11, the natural stone element 11 is fixed and can not be removed from the wall 40.

According to the invention, the mounting means 50 a securing element in the form of a clasp-like spring 51 which in Fig. 6 is indicated. This securing element 51 is plugged or pushed onto the support holder 30 with the counter-holder 20 in order to prevent the counter-holder 20 from being removed. In addition to this pure backup function, the fuse element 51 has the function to specify a well-defined spring force. This spring force acts between the support bracket 30 and the anvil 20. By the spring force of the projection 22 of the counter-holder is drawn into the longitudinal recess 15 and clamps the natural stone element 11 firmly.

In a particularly preferred embodiment of the invention, two safety elements 51.1 and 51.2 are used per natural stone element 11, which have different sized spring forces. The fuse element 51.1 may be e.g. have a greater spring force to clamp the natural stone element 11 with the support bracket 30.1 and counter-holder 20.1 at a predetermined position. The securing element 50.2, however, has a slightly lower spring force, so that the natural stone element 11 can easily slip in the region of the support holder 30.2 and the counter-holder 20.2. By this type of embodiment, it is possible to compensate for temperature-induced fluctuations.

A similar effect can be achieved by using identical securing elements 51 at all points, but those surfaces of a pair of support holder 30.1 and anvil 20.1 are coated with a rough, non-slip material (eg sand or corundum) which is in contact with the natural stone element 11 in FIG Come in contact. The corresponding surfaces of the other pair are uncoated. It is also conceivable to provide the corresponding surfaces of one pair with a lubricious coating, while the surfaces of the other pair are uncoated. These two approaches can also be combined.

In FIGS. 4A and 4B a preferred embodiment of a support holder 30 is shown. In section, it can be seen that the support holder 30 essentially has two regions which do justice to the two different functions of the support holder 30. First, the support bracket 30 serves to support / fix the natural stone element 11. To facilitate this, the support bracket 30 has a projection 32 (also referred to herein as a first projection) defining a hook-shaped angular portion 33 (in the form of an upwardly directed nose). Furthermore, the support holder 30 has a receiving region 36 for receiving the counter-holder 20. Preferably, this receiving region 36 is shown complementary to the attachment region 24 of the counter-holder 20 so that the counter-holder 20 can be pushed or pushed onto or behind the carrying holder 30.

In order to enable a good support on the wall strip 18, the support holder 30 preferably has a flat rear side 31.

Preferably, the support bracket 30 has a nose 34 with stop surface, against which the natural stone element 11 can support with its back 16. This nose 34 is optional. A corresponding support holder 30 is in Fig. 4B to recognize.

Both the support bracket 30, as well as the anvil 20 are preferably made of correspondingly shaped metal or plastic profiles which are cut to the respective lengths. As a result, these holders 20, 30 can be produced simply and accurately in large numbers. Aluminum profiles or profiles made of nickel-plated or hot-dip galvanized steel have proven particularly useful.

Preferably, each pair of a support bracket 30 and anvil 20 together with the attached or attached fuse element 51 has an overall height HV1, which is slightly less than the height HV2 of the natural stone element 11 (see Fig. 6 and 7 ). This ensures that even with a natural stone cladding 10 with open spaces 12.1, 12.2 (ie without grout) the mounting means 50 are not or hardly visible from the outside.

In the following, an exemplary assembly process is described. On a wall 40 to be covered or surface (other surfaces, such as horizontal or sloping surfaces can be so disguised), the wall strips 18.1, 18.2 are mounted parallel to each other at a defined distance HA, as in Fig. 7 indicated. Then the support bracket 30.1 and 30.2 are attached to the desired height. This can be done for example by means of rivets or screws 37. Next, a natural stone element 11.2 on the projections 32 of the support bracket 30.1, 30.2 pushed / plugged (movement P1 in Fig. 5 ). By the weight P2, the natural stone element 11.1 is pulled down and held by the two support brackets 30.1, 30.2. Now, the counter-holders 20.1, 20.2 are pushed or pushed onto the respective support holders 30.1, 30.2 from above. By this step, the natural stone element 11.2 is fixed. Depending on the embodiment, the optional securing elements 51.1, 51.2 can now be plugged or pushed on to apply the desired spring force to the pairs of support holders / counterstays 30.1, 20.1 and 30.2, 20.2, or to secure the holders of the pairs against one another.

Per natural stone element 11 so at least two support bracket 30 and two counter-holder 20 are required. For very long natural stone elements 11, several such pairs can be used, whereby care should be taken that it does not lead to tension in the stone 11.

Depending on regulatory requirements, the natural stone elements 11 must be secured so that they can not break into pieces and then fall down. To ensure this, 16 corresponding means can be provided on the back. Either a steel cable can be inserted or glued in a further (eg horizontal) third recess, or the back 16 can be covered with a net or tape. Facade / surface 10 Natural stone element 11 first natural stone element 11.1 second natural stone element 11.2 third natural stone element 11.3 first gap 12.1 second space 12.2 front 13 first longitudinal recess 14 second longitudinal recess 15 rear surface 16 Wall bar or bar 18 first wall bar or bar 18.1 second wall bar or bar 18.2 backstop 20 first counterpart 20.1 second counterholder 20.2 rear surface 21 second lead 22 angle range 23 attachment region 24 against teeth 25 supporting holder 30 second support holder 30.2 third support bracket 30.3 rear surface 31 first advantage 32 angle range 33 Nose with stop surface (optional) 34 Hole (fixing means) (optional) 35 reception area 36 Screw or rivet (fixing means) 37 teeth 38 wall 40 mounting means 50 fuse element 51 first fuse element 51.1 second fuse element 51.2 Horizontal distance or distance HA Vertical height of the mounting means 50 HV1 Vertical height of the natural stone element 11 HV2 horizontal extension (length) of the natural stone element 11 LA mounting movement P1 weight force P2 mounting movement P3

Claims (5)

1. Mounting means (50) for mounting a natural stone element (11) in front of a surface (40), comprising

   - a strip (18) for surface-parallel mounting on the surface (40);

   - a support holder (30) which comprises means (35, 37) for fastening to the strip (18), with

   o the support holder (30) comprising at least one first projection (32) which is arranged to engage under the natural stone element (11) in such a way that in the mounted state the natural stone element (11) will sit on said projection (32), and with

   o the support holder (30) comprising a receiving area (36) which is arranged to accommodate a part of a counterholder (20);

   - a counterholder (20) with

   o an insertion area (24) which is arranged to be complementary to the receiving area (36) in such a way that during mounting the insertion area (24) can be slid or placed onto the receiving area (36) of the support holder (30), so that in the mounted state the counterholder (20) will sit on the support holder (30), and with

   o a second projection (22) which is arranged to fix the natural stone element (11) on the rear side in the mounted state;

   - characterized in that the mounting means (50) comprises a clasp-like spring element (51) which connects the counterholder (20) and the support holder (30) with each other with a defined spring force after placing the counterholder (20) on the support holder (30).
2. Mounting means (50) according to claim 1, characterized in that two mounting means (50.1, 50.2) made of one respective support holder (30.1, 30.2), counterholder (20.1, 20.2) and strip (18.1, 18.2) are used for each natural stone element (11), with the strips (18.1, 18.2) concerning such that extend parallel with respect to each other along the surface (40) and have a mutual distance (HA) which is smaller than the longitudinal extension (LA) of the natural stone element (11).
3. Mounting means (50) according to one of the preceding claims 1 or 2, characterized in that a first mounting means (50.1) made of one respective support holder (30.1), counterholder (20.1) and strip (18.1) and a second mounting means (50.2) made of one respective support holder (30.2), counterholder (20.2) and strip (18.2) are used for each natural stone element (11.2), with the first mounting means (50.1) comprising a first securing element (51.1) and the second mounting means (50.2) a second securing element (51.2), with the first securing element (51.1) providing a lower spring force than the second securing element (51.2).
4. Natural stone cladding (10), comprising a plurality of strips (18.1, 18.2) for surface-parallel mounting on a surface (40) to be clad, comprising a number m of natural stone elements (11.1, 11.2) and a number n of support holders (30.1, 30.2) and counterholders (20.1, 20.2), wherein it applies that the number n is twice as large as the number m, and with

   - each natural stone element (11.1, 11.2) comprising a visible front side (13) and a rear side (16) with a first machine-made longitudinal recess (14) and a second machine-made longitudinal recess (15);

   - two support holders (30.1, 30.2) each being fastened to adjacent strips (18.1, 18.2), and one respective natural stone element (11.1, 11.2) sitting with the first longitudinal recess (14) on said two support holders (30.1, 30.2);

   - each of the n support holders (30) comprising at least one first projection (32) which is arranged to engage beneath the natural stone element (11) in such a way that in the mounted state the natural stone element (11) sits with its first longitudinal recess (14) on said projection (32);

   - each of the n support holders (30) comprising a receiving area (36) which is arranged to receive a portion of the counterholder (20);

   - each of the n counterholders (20) comprising an insertion area (24) which is arranged in a complementary manner in relation to the receiving area (36) in such a way that during mounting the insertion area (24) can be slid onto the receiving area (36) of the support holder (30), so that the counterholder (20) sits on the support holder (30) in the mounted state;

   - each of the n counterholders (20) comprising a second projection (22) which is arranged to fix the natural stone element (11) in the mounted state on the rear side by engagement in the second longitudinal recess (15), and with

   - one respective counterholder (20.1, 20.2) being placed on each of the support holders (30.1, 30.2), and each of the two counterholders (20.1, 20.2) engaging in the second longitudinal recess (15) in order to fix the natural stone element (11.1, 11.2);

   characterized in that the natural stone cladding (10) additionally comprises a clasp-like spring element (51) for each support holder (30) and counterholder (20), which spring element connects the counterholder (20) and the support holder (30) with a defined spring force with each other.
5. Method for mounting a natural stone cladding (10), characterized by the following steps:

   - surface-parallel fastening of at least two strips (18.1, 18.2) to a surface (40) to be clad at a distance from each other (HA);

   - fastening of a first support holder (30.1) to a first one of the two strips (18.1);

   - fastening of a second support holder (30.2) to a second one of the two strips (18.2);

   - insertion of an elongated natural stone element (11.2), the longitudinal extension (LA) of which is larger than the distance (HA), with a first machine-made longitudinal recess (14) of the natural stone element (11.2) being slid onto respective projections (32.1, 32.2) of the support holder (30.1, 30.2) during insertion;

   - mounting of a first counterholder (20.1) on the first support holder (30.1), with a respective projection (22) of the counterholder (20.1) engaging in a second machine-made longitudinal recess (15) of the natural stone element (11.2);

   - mounting of a second counterholder (20.2) on the second support holder (30.2), with a respective projection (22) of the counterholder (20.2) engaging in the second machine-made longitudinal recess (15) of the natural stone element (11.2), and

   - with a securing element in form of a clasp-like spring element (51.1, 51.2) being placed or slid onto each support holder (30.1, 30.2) plus counterholder (20.1, 20.2), which spring element connects the support holder and the counterholder with each other.

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