DE29514456U1 - Insulating element for soundproofing storage of building parts - Google Patents

Description

Description

The invention relates to an insulation element for soundproofing mounting of building parts such as stairs, ceilings and the like on building walls, consisting of an insulating body that can be inserted into the building wall, which is approximately cuboid-shaped and open on one side in the direction of the building part to be supported, which ends approximately flush with the surrounding building wall on its open side and which serves to accommodate bearing projections molded onto the building part, which extend through the opening into the insulating body and rest there on a bearing arranged in the insulating body base.

Such insulation elements are used, in particular, when installing stairs and stair landings, both to support these building parts on the building walls that support them and to insulate against structure-borne or impact noise. In general, the building part to be supported is spaced from the building wall in the joint area by insulation strips, so that no sound transmission is possible there either.

It is irrelevant whether the building wall is made of brick, made of in-situ concrete or as a prefabricated component

is made available, just as the building parts can be prefabricated or only manufactured on site: In principle, insulation bodies and insulation strips are always assembled or used according to the same pattern, only in the case of buildings or building parts made of in-situ concrete can they simultaneously function as a permanent formwork element.

The installation is generally carried out in such a way that the insulation body is positioned first and then the insulation strips are laid at the specified positions in the joint area, leaving the insulation body openings free, into which the bearing projections of the building part are inserted. To do this, the insulation strips must be cut to the size and position of the insulation body openings and laid around the insulation body so that they fit as flush as possible with it. The quality of the insulation in the transition area between the insulation strips and the insulation body therefore depends largely on the care of the construction workers who cut the insulation strips.

Particularly in the case of stairs made of cast-in-place concrete, where the insulation strips also serve as a permanent formwork element, there is a risk that, if the transition area is not properly worked, concrete will flow between the insulation body and the insulation strips and act as a sound bridge. But even in the case of brick building walls or prefabricated elements, the presence of mortar in the transition area leads to contact between the building part and the building wall and thus forms a sound bridge. On the other hand, if the insulation overlaps too much, there is a risk of

body and insulation board, there is a risk that the bearing projections made of in-situ concrete will be constricted and notched in this protruding overlap area, which will reduce the load-bearing capacity of the bearing projections.

Based on this, the present invention is based on the object of improving the insulating element of the type described at the outset in such a way that reliable insulation in the edge area of the insulating element is provided with less effort than before and the formation of sound bridges caused by inflowing concrete or mortar is excluded.

This object is achieved according to the invention in that a frame-like insert can be slidably inserted into the opening of the insulation body and that this insert has an approximately vertical outward bend on at least one side protruding from the opening for holding insulation strips or joint plates.

This has the advantage that the insulation strips or joint plates, which are cut more or less unevenly on the construction site, can be inserted into the gap between the building wall and the angle running roughly parallel to it and clamped in place so that the critical transition point between the insulation body/insulation strips or joint plate is covered tightly and without any sound bridges.

So that the bend allows good guidance and clamping of the insulation strip or the joint plate and

At the same time, to provide sufficient tolerance in the positioning of these insulation parts, it is recommended that the bend be pulled outwards so far that it extends beyond the cross-section of the insulation body. It is also advisable that the bend extends over the entire side length of the insulation body, preferably on both sides, so that a large-scale coverage of the transition area is guaranteed.

A particularly useful embodiment of the invention is that the insert has corresponding bends on both vertical sides, which preferably extend along the entire opening height on both sides of the opening parallel to the building wall. This covers the critical transition area of the insulation body on the side, where large-area insulation panels with long, hand-cut edges generally connect.

In a similar way, it can also be useful to provide a similar bend on the top and/or bottom edge of the insert, which in this case extends upwards or downwards and merges seamlessly into the two lateral bends. This creates a circumferential frame that forms a gap on all four sides of the insulation body for the tight connection of insulation strips or joint plates. The thickness of the insulation strips or joint plates is not important here, because the insert can be pushed into the insulation body until its bend holds the insulation material in place.

The external dimensions of the insert are designed so that it can be moved along the inner walls of the insulation body while being slightly clamped. This ensures that the insulation strips can be clamped in the desired position, even if they only extend a short distance into the gap between the bend and the building wall.

There are different options for the shape of the insert. For example, it can be three-sided, i.e. as a U-shaped frame. For stability reasons, however, it is recommended that it has a roughly hollow cylindrical shape and at least locally, preferably flat, rests on all four inner sides of the insulating body. It can extend almost over the entire depth of the insulating body and thus form a rigid inner box for the relatively soft insulating body. This is particularly advantageous if the building wall is made of in-situ concrete and the insulating body is therefore exposed to the pressure of the surrounding liquid concrete until it hardens, but the rigid design of the insert is also useful for masonry. The insert can be open at the back or closed by a rear wall.

From a static point of view, it is recommended that insulation bodies that have a special bearing in the base wall, especially one made of elastomer, should be open in the area of this bearing. However, this is not absolutely necessary.

There are various options regarding the material used. It is best to use

thin-walled but rigid, made of sheet metal or hard plastic.

Further features and advantages of the invention emerge from the following description of embodiments based on the drawing;

Figure 1 shows a vertical section through the insulation element in installed condition for a prefabricated podium;

Figure 2 is a schematic oblique view of a similar insulation element with laterally adjacent insulation panels;

Figure 3 shows a horizontal section through the insulation element according to Figure 1 and

Figure 4 shows a vertical section of a shortened version of the insulation element.

In Figure 1, you can see a building wall 1, which can be made of in-situ concrete or bricks. It has a suitable recess la, into which a box-shaped insulating body 2 made of soft material is concreted or bricked in. It has a rectangular cross-section and is open to the outside in order to accommodate a bearing projection 3a of a part of the building 3, in particular a stair landing, through its opening 2a (see Figure 3), while largely insulating the impact sound emanating from it. To improve the insulating properties, an elastomer bearing can be arranged in the base of the insulating body, via which the weight force transmitted by the bearing projection 3a is mainly introduced into the building wall 1.

It is now essential that a thin-walled, sleeve-shaped insert 5, whose external dimensions are adapted to the interior of the insulating body 2, can be slid into the insulating body through the opening 2a and that this insert 5 has a vertical bend 5a or 5b, 5c and 5d at least on one front edge, preferably on all side edges according to Figure 2, which runs outwards parallel to the building wall 1. The bends extend over the entire circumference of the insulating body and merge into one another in one piece.

The insert 5 is inserted into the insulation body 2 before the stair landing 3 is installed and pushed in so deeply that the angles 5a, 5b, 5c and 5d serve to hold and clamp insulation parts, namely an upper edge insulation strip 6 or side joint plates 7 and 8 as well as lower insulation strips if necessary.

As Figure 2 in particular shows, the external bends formed on the insert 5 result in a tight and flat covering of the critical, hand-cut edges of the insulation strips or joint plates. In this way, the insulation parts 6, 7 and 8 can be cut out quite roughly on site according to the contour of the insulation element and then inserted into the gap between the bend and the building wall without having to fear the formation of sound bridges between the building wall and the supported building part due to these inaccuracies.

If, after inserting the insert 5, the insulation strips or joint plates 6 to 8 are against the

If the insulation strips are pressed into the building wall and clamped in the desired position, the stair landing 3 is concreted or inserted as a prefabricated part and the floor covering 13 is then applied, a sound bridge between the floor covering and the load-bearing wall is reliably prevented due to the overlap of the insulation strips or joint plates by the angle of the insert 5. If the floor covering is finished with regard to all layers, any upper edge of the insulation strip 6 that may still be protruding can be cut off.

Figure 4 shows a simplified variant. The insert 5' has a shorter insertion depth than the previously described design; it therefore extends only a few centimeters into the insulation body 2.

In summary, the present invention proposes an insert with a collar, which, thanks to its protruding edges, enables a tight connection of insulation strips or joint panels, even if they are only cut imprecisely in the transition area. The skill of the construction worker therefore no longer has any influence on the sound insulation.

Claims (10)

PATENT ATTORNEYS , .. _# ,··..*·. · ; t.. DlPL-ING. R. LEMCKE &Iacgr; * / · · &Ggr;"*: ' **/.·... ^: DR.-ING. HJ BROMMER · ^: · " D1PL.-ING. F. PETERSEN ¹⁰ BISMARCKSTRASSE 16
76133 KARLSRUHE PHONE {0721) 912800
FAX (0721) 21105 31 August 1995 16 450 (B/la) Protection claims 1. Insulation element for soundproofing support of building parts such as stairs, ceilings and the like on the building, in particular on the building wall, consisting of an insulating body that can be inserted into the building, which is roughly cuboid-shaped and open on one side in the direction of the building part to be supported, and which serves to accommodate support projections arranged on the building part, which extend horizontally through the opening in the insulating body and rest there on the base of the insulating body, characterized, that a frame-like insert (5) can be slidably inserted into the opening (2a) of the insulating body (2) and that this insert (5) has, at least on one side protruding from the opening (2a), an approximately vertical bend (5a, 5b, 5c) outwards for holding strip- or plate-shaped insulating parts (6, 7, 8). 2. Insulating element according to claim 1,
characterized, that the bend (5a, 5b, 5c or 5d) projects outwards beyond the cross-section of the insulating body (2). 3. Insulating element according to claim 1,
characterized, that lateral bends (5b, 5c) are formed on both sides of the insert (5), which preferably extend along the entire opening height on both sides of the opening (2) approximately parallel to the building wall and are optionally connected to an upper and/or lower bend (5a; 5d). 4. Insulating element according to claim 1, characterized in that the bend (5a, 5b, 5c or 5d) of the insert (5) extends almost over the entire side length, preferably beyond it. 5. Insulating element according to claim 1, characterized in that the insert (5) is guided in the insulating body (2) with slight clamping. 6. Insulating element according to claim 1, characterized in that the insert (5) has an approximately hollow cylindrical shape. 7. Insulating element according to claim 1, characterized in that the insert (5) extends almost over the entire depth of the insulating body (2). 8. Insulating element, wherein the insulating body (2) in the bottom wall has a rubber-elastic bearing (4), in particular made of elastomer, characterized in that that the insert (5) is open in the area of this bearing (4). 9. Insulating element according to claim 1,
characterized, that the insert (5) consists of rigid, thin-walled material. 10. Insert (5) for the insulating element (2) according to one of the preceding claims.