DE29815588U1 - Insulation mat - Google Patents

Description

PATENT ATTORNEYS \.» ..·.* ·'..·' **· * "5 i DIPL.-ING. R. LEMCKE DR.-ING. H. J. BROMMER DIPL.-ING. F. PETERSEN DIPL.-ING. D. BLUMENROHR

BISMARCKSTRASSE 16 76133 KARLSRUHE TELEPHONE (07 21) 91 28 00 FAX (07 21) 2 11 OS

31 July 1998 17 485 (B/hd)

Schock Components GmbH Vimbucher Strasse 2 D-76534 Baden-Baden

Insulation mat

PATENT ATTORNEYS ·· ···

DIPL.-ING. R. LEMCKE DR.-ING. H. J. BROMMER DIPL.-ING. F. PETERSEN DIPL.-ING. D. BLUMENROHR

BISMARCKSTRASSE 16 76133 KARLSRUHE

TELEPHONE (07 21) 91 28 00 FAX (07 21) 211 OS

31 July 1998 17 485(B/hd)

Description

The invention relates to an insulation mat for installation between building parts that are to be acoustically decoupled from one another, in particular for installation between tread plates and their substructure, wherein a connecting layer, in particular a mortar layer, is arranged between the two building parts.

The main application of the invention is impact sound insulation on stairs, which is why the following description is based on this application without the invention being limited to it.

Increasing attention is being paid to sound insulation in the area of stairs. For example, in the magazine tg treppe + geländer 2/1987 by Pörschmann "Impact sound insulation for concrete stone stairs" it became known that an insulating layer could be glued to a conventionally concreted staircase and then the mortar bed for the angled steps could be formed on this insulating layer.

Furthermore, it is known from DE 21 25 260 to cover a stepped substructure with overlapping elastic bearing plates, on which the block steps then lie directly.

Finally, DE 297 19 581 has made it possible to extend the insulation layer laterally, so that the tread plate supported by it is surrounded by the insulation layer on the sides and partly also on top. This gives

This not only provides complete shielding downwards, but also on all sides and opposite a set plate of the next higher step that is connected to the back of the step plate.

The present invention is based on the object of perfecting the known insulation constructions in such a way that the bond between the components separated by the insulation mat is improved while maintaining an optimal insulation effect.

The invention is based on the knowledge that flexible plastic mats made of foam are particularly suitable as an insulating layer, especially if they are made of fine-pored plastic. However, according to the applicant's investigations, such plastic mats do not provide a stable bond with the connecting layer, usually with the mortar layer in which the tread plates are laid. A better bond can be achieved by profiling the insulating mat, for example according to Figure 9 of the last-mentioned DE 297 19 581. Covering the insulating mat with fabric is also known. However, both measures make the insulating layer considerably more expensive.

According to the invention, the problem described is now solved by coating the insulation mat at least locally on its underside and/or top side with granular material. In this way, the smooth surface of the insulation mat is roughened and ensures a good bond with the mortar bed or the adjacent part of the building. In addition, this measure is considerably more cost-effective than profiling or laminating the insulation layer.

The granular material should predominantly have a grain size of 0.05 mm to approximately 1 mm, although it is harmless if larger particles, such as those with a grain size of up to 5 mm, are also occasionally included.

In principle, different materials can be used for the coating. However, from a construction point of view and for cost reasons, it is ideal if the insulation mat is coated with sand. This gives you the right grain size at a very low cost.

The thickness of the coating should be less than 3 mm, especially less than 1.5 mm. In general, a single layer of coating is sufficient, resulting in a thickness of about 0.5 mm.

The connection between the coating and the insulation mat is made by gluing. It is not a problem if the adhesive dissolves the surface of the insulation mat slightly; on the contrary, it gives the granular material a better hold.

The insulation mat only needs to be coated with adhesive on one or both sides, then sand is sprinkled on top, which automatically creates the desired thin coating, as excess sand does not come into contact with the adhesive.

Conventional materials can be used for the insulation mat, especially fine-pored polyethylene.

Further features of the invention emerge from the following description of an embodiment with reference to the drawing;

Figure 1 is an oblique view of the insulation mat according to DE 297 19 581, but in a further development according to the invention by sanding on one side;

Figure 2 shows a cross-section through the rear area of a stair step with an insulation mat according to Figure 1.

In Figure 1 you can see a flexible insulation mat 1 in the form of a frame, which encloses the step plate (not shown) on three sides. The insulation

The mat has two side extensions 1a and 1b and a rear extension 1c, each of which runs vertically upwards for a short distance before protruding inwards a little at the imaginary top of the tread plate. Regarding the details of the insulation mat, reference is made to DE 297 19 581, the content of which is fully incorporated in the present application.

The key feature of the insulation mat 1 is that its underside is sanded. This can be seen more clearly in Figure 2, where it is shown in its installed state - limited to the rear area of a stair step.

For drawing purposes, the granular material 2 is shown in the form of individual enlarged particles. In reality, however, one must imagine a fairly homogeneous, closed coating because the sand grains are predominantly much smaller than in the drawing.

The insulation mat 1 rests on a mortar bed 3 with its sanded underside. This mortar bed is applied in the usual way to the stepped substructure 4 in order to lay tread plates 5. The tread plate 5 is preferably already glued to the insulation mat 1 surrounding it by the manufacturer and is laid and aligned together with it on the prepared mortar bed 2. This creates an intimate bond between the fresh mortar bed and the sand layer 2, so that the insulation mat and the tread plate connected to it are reliably secured against slipping in all directions.

The thinner projections 1c of the insulation mat do not need to have a coating, since they only serve to provide sound insulation between the tread plate 5 and the substructure 4 on the one hand or a usually adjacent setting plate 6 on the other hand.

The illustration in Figure 2 is not only suitable for the staircase construction described but also for the insulation of normal floor coverings against their substructure. In this case, the insulation mat can be installed without

Lateral projections 1a to 1c can be carried out, as well as a
A lateral overhang is only recommended in the wall connection area, as shown in Figure 2, so that the floor slab is insulated not only from its subsurface, but also from the adjacent wall.

In the examples, the insulation mat is sanded on the underside and glued to the top with stepping plates. Of course, with a different floor structure, a coating on both sides or just a coating on the top of the insulation mat may be appropriate.

Claims (7)

PATENT ATTORNEYS ** *" ·* ·· ·· »· DIPL.-ING. R. LEMCKE DR.-ING. H. J. BROMMER DIPL.-ING. F. PETERSEN DIPL.-ING. D. BLUMENROHR BISMARCKSTRASSE 16 76133 KARLSRUHE TELEPHONE (07 21) 91 28 00 FAX (07 21) 2 11 OS 31 July 1998 17 485(B/hd) Protection claims 1. Insulation mat (1) for installation between two building parts that are to be acoustically decoupled from each other, in particular for installation between tread plates (5) and their substructure (4), wherein a connecting material (3), in particular a mortar bed, is arranged between the two building parts (4, 5), characterized, that the insulation mat (1) is at least locally coated on its bottom and/or top side with granular material (2). 2. Insulating mat according to claim 1,
characterized, that the granular material (2) predominantly has a grain size of about 0.05 mm to about 1 mm. 3. Insulating mat according to claim 1,
characterized, that the granular material has a small fraction with a grain size of more than 1 mm, in particular up to about 5 mm. 4. Insulating mat according to claim 1,
characterized, that the granular material consists of sand. Π 1, f|C|. 5. Insulating mat according to claim 1, characterized in that the average thickness of the coating is less than about 3 mm, in particular less than 1.5 mm, preferably only about one millimeter. 6. Insulating mat according to claim 1, characterized in that the coating is a single layer of sand. 7. Insulating mat according to claim 1, characterized in that the granular material (2) is glued to the insulating mat (1).