EP2660403A1 - Insulation holder - Google Patents

Abstract

The holder (1) has a shaft (5) comprising a connector (6) provided in a front end region (9) to directly or indirectly fasten the shaft in or at a substrate (4). A retainer plate (7) holds insulating material (2). The shaft and the retainer plate comprise a latch unit for formation of a detent connection. The latch unit is formed such that the retainer plate is moved from a rear end region (8) of the shaft in a direction of the front end region. The latch unit blocks movement of the retainer plate back in a direction of the rear end region of the shaft. An independent claim is also included for a method for fastening insulating material at a substrate.

Description

The present invention is an insulating material holder for fixing insulating material to a substrate, in particular to a building exterior wall and a corresponding fastening method.

As part of the Energy Saving Ordinance, there is a continuous development that the insulation materials in the area of the curtain, ventilated facades are getting thicker. Meanwhile, insulation materials up to a thickness of 300 mm are used. As the thickness of the insulating material increases, so does the weight of the insulating material. In addition, insulation materials of this thickness are often no longer produced in one layer, but multi-layered. The prior art describes a multitude of possibilities for fastening insulating material to a substrate, for example to a building wall.

From the DE 20 2010 006 745 U1 is a fastening device with which several insulation panels can be attached to a building surface. For this purpose screws are used. The first insulation board is fastened by screws to the building wall. The second insulation board is then fastened by means of screws to the first insulating plate.

The DE 1 056 349 B describes a device for fixing insulation boards to a substrate. The fastening device consists of a top plate, a support pin and one or more locking plates. After attaching the top plate to the building wall, for example by means of screws, several layers of insulation material can be pushed onto the support pin and each with a locking plate at the location of a notch in the Carrying bolts are fixed. The last insulation plate is fastened by bending two lobes apart at the end of the support bolt.

However, the known in the prior art devices for fixing the insulating material have the disadvantages that the assembly is relatively expensive and the devices are relatively expensive to manufacture. In addition, these devices are not suitable to attach thicker and therefore heavy insulation materials to a substrate that slipping of the insulation is prevented. Due to the weight of the insulating materials and the low intrinsic stability of the insulating materials, it is also not possible to prevent the individual components of the insulating material, i. the individual tracks or plates lose their shape and are virtually compressed. However, this leads to permanent damage to the thermal insulation.

It is therefore the object of the present invention to provide an insulation holder which does not have the disadvantages described above.

This object is achieved by the insulation holder according to claim 1 and by the method according to claim 10.

The insulation holder according to the invention for fastening insulating material to a substrate, has a shaft and at least one retaining plate. The shank has, in a front end region, that is to say in the region which faces the substrate in the assembled state, a connecting means with which the shank can be fastened directly or indirectly in or on the substrate. The at least one retaining plate of the insulating material holder is used to hold the insulating material. According to the invention, the shank and the at least one retaining plate have latching means which form a latching connection. This locking connection causes the retaining plate from a rear end portion of the shaft, that is, the area which faces away from the ground in the mounted state, in Direction of the front end portion can be moved, but a movement of the retaining plate is blocked back towards the rear end portion of the shaft. In the context of the present invention, blocking the movement of the holding plate means that the movement of the holding plate in the blocked direction is fundamentally much heavier than the movement of the holding plate in the other direction.

This insulation holder according to the invention can be produced inexpensively and easily and quickly mounted. In particular, by the latching connection between the shaft and the at least one retaining plate can be ensured that the insulation material is held with the optimum contact pressure on the ground during assembly of the insulating material, so that slippage of the insulating material and deformation of the insulating material can be effectively prevented , The locking connection also ensures that during assembly for the arrangement of the retaining plate no additional tools are needed. Also, the packaging and transport costs can be significantly reduced, since the shanks and the holding plates occupy significantly less packing volume.

The insulation holder according to the invention allows reliable protection against any tilting of the insulation material. Since the locking connection according to the invention allows a very accurate arrangement of the retaining plate on the shaft, it can also be avoided that the insulation is locally compressed too much by setting too low the retaining plate.

According to preferred embodiments of the present invention, the slipping and the deformation of the insulating material in the mounted state is prevented by further features of the insulation holder according to the invention.

In a preferred embodiment, the retaining plate has at least one projection on the side facing the insulating material. The projection prevents the insulating material in the area of Holding plate and at a certain distance deformed or slip off. The projection can be configured in different ways. The protrusion may form a bump that causes the friction between the holding member and the insulating material to be increased. The projection can also penetrate at least partially into the insulating material. Preferably, the at least one projection has a profiling. In a preferred embodiment of this profiling, the at least one projection has the shape of a tooth, which preferably at least partially penetrates into the insulation material held by the retaining plate. More preferably, the retaining plate on several such projections.

In a further preferred embodiment, the insulation holder according to the invention has a holding element. This holding element is configured such that it is arranged in the mounted state of the insulation holder between the substrate and the adjacent thereto insulating material and the holding element has at least one projection on the side facing the insulating material. As already described above in connection with the retaining plate, the projection can be designed in different ways. The preferred embodiments described therein are also preferred in the holding element. The holding element is preferably arranged on the shaft, so that only a connection to the ground is necessary for the shaft and the holding element. However, the holding element can also be arranged at a distance from the shaft on the ground. If required holding elements can be arranged both on the shaft, as well as at a distance from the shaft.

In particular, by the use of one or more projections on the at least one holding plate and / or the holding element, the number of necessary insulation holder per surface can be substantially reduced.

The holding plate and the holding element can have different shapes, that is, they can be round, rectangular, polygonal or be oval or have any other conceivable shape.

If the insulating material to be fastened consists of several layers, the insulation holder according to the invention may have further features in order to keep these layers appropriate.

In a preferred embodiment of the insulation holder according to the invention, the insulation holder has a plurality of holding plates. Each retaining plate is used to attach each one layer of the insulating material to the front of the insulating material or on the ground. Holding plate, which are arranged between two layers of insulating material, in a preferred embodiment, on two sides each have at least one projection, so that at least one projection is disposed on the one side facing the insulating material side and at least one other projection on the other layer of insulating material facing side is arranged.

In a further preferred embodiment, the insulation holder according to the invention also has at least one connecting element. This connecting element has at least two projections. The at least two protrusions are arranged such that when the connecting element is placed between two layers of the insulating material, one of the at least two protrusions at least partially penetrates in one of the at least two layers and the other of the at least two protrusions at least partially into the other of the at least two layers penetrates the insulating material. With the help of this connecting element, a layer of the insulating material can be attached very effectively and very easily and inexpensively to another layer of the insulating material. Such additional attachment can be used for example on larger areas.

The insulation holder according to the invention can be mounted in different ways. One possibility is first to attach the shank of the insulation holder directly or indirectly in or on the ground Fasten. In a next step, the insulation can then be pushed over the shaft to the ground. For this purpose, the shaft is preferably designed at its rear end region such that a simple sliding of the insulating material on the shaft is possible. For this purpose, the shaft may, for example, have a conical or a pointed shape at the end region.

The inventive method for fixing insulating material to a substrate comprises the following steps: First, a front end portion of a shaft of the insulation material holder is attached directly or indirectly in or on the ground. Thereafter, a retaining plate along the shaft is moved to the surface of the insulating material to be fastened, wherein the shaft and the retaining plate locking means for forming a latching connection and wherein the locking means are configured such that the retaining plate from a rear end portion of the shaft simply in the direction of the front End region can be moved, but the locking means block movement of the retaining plate back towards the rear end portion of the shaft.

Fig. 1a:

einen Querschnitt einer Ausführungsform eines erfindungsgemäßen Dämmstoffhalters im montierten Zustand mit einem Halteteller für die Befestigung von Dämmstoff;

Fig. 1b:

einen Querschnitt einer weiteren Ausführungsform eines erfindungsgemäßen Dämmstoffhalters im montierten Zustand mit zwei Haltetellern für die Befestigung von zwei Lagen Dämmstoff;

Fig. 2:

einen Querschnitt durch einen Halteteller und einen Schaft, der eine Ausführungsform der Rastmittel zur Bildung einer Rastverbindung zwischen dem Halteteller und dem Schaft gemäß der vorliegenden Erfindung veranschaulicht;

Fig. 3:

einen Querschnitt einer weiteren Ausführungsform eines erfindungsgemäßen Dämmstoffhalters im montierten Zustand mit einem Halteelement;

Fig. 4a:

eine perspektivische Ansicht eines Halteelements mit entlang einer Geraden angeordneten Vorsprüngen, wie es in einer bevorzugten Ausführungsform des erfindungsgemäßen Dämmstoffhalters beispielsweise verwendet werden kann;

Fig. 4b:

eine perspektivische Ansicht eines alternativen Halteelements mit kreisförmig angeordneten Vorsprüngen, wie es in einer bevorzugten Ausführungsform des erfindungsgemäßen Dämmstoffhalters beispielsweise verwendet werden kann;

Fig. 5a:

einen Querschnitt eines Verbindungselements im montierten Zustand, wie es in einer bevorzugten Ausführungsform des erfindungsgemäßen Dämmstoffhalters beispielsweise verwendet werden kann;

Fig. 5b:

eine perspektivische Ansicht des in Fig. 5a gezeigten Verbindungselements mit beidseitig, jeweils entlang einer Geraden angeordneten Vorsprüngen; und

Fig. 5c:

eine perspektivische Ansicht eines alternativen Verbindungselements mit beidseitig, jeweils an unterschiedlichen Enden des Verbindungselements angeordneten Vorsprüngen.

In the following, the insulation holder according to the invention and the method according to the invention for fixing insulation material are explained in more detail by way of example with reference to the following figures. Show it:

Fig. 1a:

a cross section of an embodiment of an insulation holder according to the invention in the assembled state with a retaining plate for the attachment of insulation material;

Fig. 1b:

a cross section of another embodiment of an insulation holder according to the invention in the assembled state with two holding plates for the attachment of two layers of insulation material;

Fig. 2:

a cross section through a retaining plate and a shaft, the one embodiment of the locking means for Forming a latching connection between the retaining plate and the shaft illustrated in accordance with the present invention;

3:

a cross section of another embodiment of an insulation holder according to the invention in the assembled state with a holding element;

Fig. 4a:

a perspective view of a holding element with projections arranged along a straight line, as it can be used in a preferred embodiment of the insulation holder according to the invention, for example;

Fig. 4b:

a perspective view of an alternative holding element with circularly arranged projections, as it can be used for example in a preferred embodiment of the insulation holder according to the invention;

Fig. 5a:

a cross section of a connecting element in the assembled state, as it can be used for example in a preferred embodiment of the insulation holder according to the invention;

Fig. 5b:

a perspective view of the in Fig. 5a shown connecting member having on both sides, each along a straight line arranged projections; and

Fig. 5c:

a perspective view of an alternative connecting element with on both sides, each arranged at different ends of the connecting element projections.

In Fig. 1a shows a cross section of an embodiment of the insulation holder 1 according to the invention in the assembled state. The insulation holder 1 consists of two parts, a shaft 5 and a retaining plate 6. The shaft 5 is fixed in this example in a borehole in a substrate 4. Alternatively, however, the shaft 5 can also be fixed otherwise directly or indirectly to or in the substrate 4. For example, an additional means can be arranged in a borehole in the ground 4, to which the shaft 5 can be fastened.

The person skilled in the art knows that this type of attachment to the substrate 4 can be carried out both before the arrangement of the insulating material 2 on the substrate 4 and after the arrangement of the insulating material 2 on the substrate 4. If the insulating material 2 has been arranged on the substrate 4 before the attachment of the shaft 5, the shaft 5 is fastened to the substrate 4 by the insulating material 2. When the insulating material 2 is placed on the substrate 4 after attachment of the shaft 5, it is helpful if the shaft 5, as in the FIG. 1a shown at its rear end portion 8 is designed such that a simple sliding of the insulating material 2 on the shaft 5 is possible. In the in Fig. 1a In the embodiment shown, the rear end region 8 has a conical shape for this purpose.

In the in Fig. 1a In the embodiment shown, the insulating material 2 was arranged on the substrate 4 either before the shaft 5 was fastened or after the shaft 5 was fastened. In order to fix the insulating material 2 to the substrate 4, a retaining plate 7 is moved on the shaft 5 to the insulating material 2 according to the invention. In this case, the retaining plate 7 may already be arranged on the shaft 5. This is possible, for example, when the shaft 5 is first attached to the substrate 4 after the insulating material 2 has been arranged on the substrate 4. According to an alternative embodiment, the retaining plate 7 but also after the attachment of the shaft 5 on or in the ground 4 are pushed onto the shaft 5 or between the retaining plate 7 and the shaft 5 a locking connection can be made. The retaining plate 7 is then so far on the shaft. 5 moved forward, that is in the direction of the front end portion 9 of the shaft 5, until the insulating material 2 is fixed by the retaining plate 7 to the substrate 4.

Fig. 1a shows the result of this assembly, which can not be determined by the result in which of the above-described sequences, the individual process steps were performed.

According to the invention, the shaft 5 has a connection means 6 in the front end region 9. In the in Fig. 1a In the embodiment shown, the connecting means 6 is formed by a plurality of lamellae with which the shaft 5 can be fastened in a borehole in the base 4. Starting from the front end of the shaft 5, the in Fig. 1a shown embodiment of the shaft 5 after the connecting means 6 a paragraph. This shoulder is formed by the fact that the circumferential diameter of the shaft 5 in the region of the connecting means 6 is smaller than the circumferential diameter of a directly or indirectly adjoining portion of the shaft 5. With the help of this paragraph, a stop is formed, which prevents the shaft 5 on can be pushed into a hole in the substrate 4. Thus, the length of the shaft 5 above the ground 4 always has at least a defined length. This length of the shaft 5 is preferably greater than the thickness of the insulating material 2 to be fastened, in order to allow, if appropriate, a simple sliding of the retaining plate 7 on the shaft 5. A shaft 5 with this length also has the advantage that it can also be used in the event of unevenness, for example projections, on the substrate 4, for example the building wall, in order to compensate for these irregularities.

In the in Fig. 1a In the embodiment shown, the holding plate 7 has a projection 11 on its side facing the insulating material 2. In this embodiment, this is a circumferential projection 11. Alternatively, however, a plurality of projections may be arranged on the retaining plate 7. As described above, the projection or the projections may also have a profiling.

Fig. 1b shows a cross section of an embodiment of the insulation holder 1 according to the invention in the assembled state, similar to the in Fig. 1a shown embodiment. In this embodiment, two retaining plates 7 are provided for the attachment of two layers of insulating material 2, 3. A retaining plate 7 attaches a first layer of insulating material 3 to the substrate 4 and the other retaining plate 7 secures the second layer of insulating material 2 to the first layer of insulating material 3.

In the prior art various embodiments of the locking means 10 according to the invention are known. Fig. 2 illustrates an example of an implementation of this locking means 10 according to the invention to form a latching connection. In this embodiment of the locking means 10 shown, the retaining plate 7 has at least one resilient locking element 15. The locking means 10 of the shaft 5 is formed by a plurality of latching lugs 16. In the in Fig. 2 In the embodiment shown, the latching lugs 16 have a wedge-shaped cross section, wherein one edge of the latching lug 16 forms a ramp and the other edge of the latching lug 16 is arranged substantially perpendicular to the longitudinal extension of the shaft 5. By exerting pressure on the retaining plate 7 in the direction of the front end portion 9 abuts the resilient locking element 15 of the retaining plate against the ramp of the locking lug 16 on the shaft 5 and is pushed away by the ramp of the shaft 5 and thus can slide over the locking lug 16 , However, if a pressure in the direction of the rear end portion 8 is exerted on the retaining plate 7, the locking element abuts against the vertical edge of the locking lug 16. This movement of the retaining plate 7 is blocked in this direction, ie the retaining plate can not or only with help a pressure that is higher than the pressure required to move in the opposite direction.

However, this is only one example of an embodiment of the claimed locking means. It is in principle possible to realize the latching connection according to the invention with other latching means, as described, resilient latching element and the latching lugs described. In addition, also the locking element and the detents are designed differently than shown. Thus, for example, the cross section of a detent nose can be circular-segment-shaped, triangular, polygonal or irregular. By means of the mold, for example, the movement of the holding plate 7 towards the front end portion 9 or the rear end portion 8 can be made lighter, more difficult or impossible. In one embodiment of the locking means, for example, the blocking of the retaining plate 7 towards the rear end portion 8 can be canceled by using a tool or a tab.

Fig. 3 shows a cross section of another embodiment of an insulation holder according to the invention in the assembled state. In this embodiment, a holding member 12 is used. As in Fig. 3 illustrated, the holding member 12 between the substrate 4 and the adjacent thereto insulating material 2, 3 is arranged. The holding element 12 has at least one projection on the side facing the insulating material. As already explained above, the projection can be realized by means of different shapes which increase the friction between the retaining element and the insulating material or at least partially penetrate into the insulating material. In the in Fig. 3 illustrated embodiment, the holding member 12 a plurality of projections, each having the shape of a tooth. The Fig. 4a and 4b show embodiments of such a holding element 12. In Fig. 4a are the projections of the support member 12 on a straight line. In the embodiment in FIG Fig. 4b the projections of the holding element 12 are arranged in a circle.

The holding element 12 can be fastened to the substrate 4 in different ways. The holding element 12 can be fastened together with the shaft 5 to the base 4 or separated therefrom. In the in the Fig. 4, 4a and 4b In embodiments shown, the retaining element 12 is fastened together with the shaft 5 to the substrate 4. In these embodiments, the retaining element 12 as a connecting means 17 slats for attachment in a borehole. In this case, the shaft 5 can be attached indirectly, that is to say with the aid of the retaining element 12, to the substrate 4. For this purpose, the shaft 5 may be formed at its lower end such that it can be fastened to the holding element 12. In a preferred embodiment, the shaft 5 is designed for this purpose at its front end region such that it can be inserted into the connecting means 17 of the holding element 12. In this way, the connecting means 17 can be widened and thus the holding force of this connecting element can be increased.

The Fig. 5a, 5b and 5c show embodiments of connecting elements 13, as they can be used advantageously in connection with the insulation holder 1 according to the invention for the attachment of several layers of insulation material 2, 3. Fig. 5a shows a cross section through an embodiment of a connecting element 13 in the assembled state as it can be advantageously used in particular together with the insulation holder 1 according to the invention. The connecting element 13 has at least two projections, wherein one of the at least two projections penetrates into one layer of insulating material and the other of the at least two projections penetrates into another layer of insulating material. The connecting element 13 prevents in a simple manner that a layer of insulating material moves relative to another layer of insulating material.

Fig. 5b shows a perspective view of the in Fig. 5a shown connecting element 13. Off Fig. 5b it can be seen that the connecting element 13 in this embodiment, a plurality of projections having the shape of a tooth, is formed, wherein the projections on two opposite sides of the connecting element 13 are each arranged along a straight line.

Fig. 5c shows an alternative embodiment of the connecting element 14. The in Fig. 5c shown connecting member 14 has two projections on opposite sides. In the connecting element 14, these projections are additionally offset laterally, so that in the assembled state of the projection, which is arranged in the position insulating material, which is closer to the substrate 4, over the other projection is located. The connecting the two projections part of the connecting element 14 is in the assembled state between the two layers of insulation material and prevents the outer layer insulating material causes its weight that the projection of the inner layer of insulation material is pulled out. As a further or alternative means to prevent this, the projections in the connecting elements 13, 14 may also have barbs, as for example in one of the in Fig. 5c shown protrusions is illustrated.

Claims (10)

Insulation holder (1) for fixing insulating material (2, 3) to a substrate (4), comprising: a shank (5), the shank (5) having in a front end region (9) connecting means (6) for directly or indirectly fixing the shank (5) in or on the substrate (4), and at least one retaining plate (7) for holding the insulating material (2, 3),
characterized in that the shank (5) and the at least one retaining plate (7) comprise detent means (10) for forming a detent connection, wherein the detent means are configured such that the retaining plate (7) can be easily inserted from a rear end region (8) of the shank (5) Direction of the front end portion (9) can be moved, the locking means (10) but a movement of the holding plate (7) back towards the rear end portion (8) of the shaft (5) block. The insulation holder (1) according to claim 1, wherein the retaining plate (7) on the insulating material (2, 3) facing side of the retaining plate (7) has at least one projection (11). The insulation holder (1) according to claim 2, wherein the at least one projection (11) is formed by a tooth. The insulation holder (1) according to any one of claims 1 to 3, further comprising a holding element (12) which is designed such that it in the assembled state of the insulation holder (1) between the substrate (4) and the adjacent thereto insulating material (2, 3) is arranged and the holding element on the insulating material (2, 3) facing side has at least one projection. The insulation holder (1) according to claim 4, wherein the holding member (12) is configured such that it is arranged on the shaft (5). The insulation holder (1) according to any one of claims 4 or 5, wherein the at least one projection is formed by a tooth. The insulation holder (1) according to any one of claims 1 to 6, wherein the insulating material (2, 3) consists of several layers and the insulation holder (1) has a plurality of retaining plate (7) to each one position of the insulating material (2, 3) the position of the insulating material (2, 3) or the substrate (4) lying in front of it. The insulation holder (1) according to any one of claims 1 to 7, wherein the insulating material (2, 3) consists of several layers and the insulation holder (1) a connecting element (13, 14) for connecting a layer of the insulating material (2, 3) another position, wherein the connecting element (13, 14) has at least two projections, wherein one of the at least two projections at least partially penetrates into one of the at least two layers and the other of the at least two projections at least partially penetrates into the other of the at least two layers , The insulation holder (1) according to any one of claims 1 to 8, wherein the shaft (5) at its rear end portion (8) is designed such that a simple sliding of the insulating material (2, 3) on the shaft (5) is possible. Method for fixing insulating material (2, 3) to a substrate (4), comprising: attaching, directly or indirectly, a front end portion (9) of a shank (5) of the insulation holder (1) in or on the ground (4); and Moving a retaining plate (7) along the shaft (5) to the surface of the insulating material to be fastened, wherein the shaft (5) and the retaining plate (7) latching means (10) for forming a latching connection and wherein the latching means are designed such that the holding plate (7) can be simply moved in the direction of the front end region (9) from a rear end region (8) of the shaft (5), but the latching means (10) move the holding plate (7) back towards the rear end region ( 8) of the shaft (5).

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