DE19738731C2 - Panel-shaped component with high sound insulation - Google Patents

Description

The invention relates to a plate-shaped component for separating rooms with the The goal is to achieve a high level of sound insulation between these rooms. The system consists of plate-shaped elements to form the room walls.

Light walls with high sound insulation have so far been constructed as so-called stud walls, in which the load-bearing stud frame is first created and then planked. The cavities are i. a. filled with sound absorbing material. This design is labor intensive and due to the manual execution on site by the expert of Executors dependent and therefore prone to errors (sound bridges) and because of necessary manufacturing accuracy in turn labor intensive.

Therefore, there are often partition walls and simple partitions, although are sound-insulating and also sound-absorbing, but often sound bridges have, and are therefore to be assessed from an acoustic point of view.

Another way to create soundproof walls is in the DE-PS 630 614 described. Here a corresponding wall or ceiling is made individual, with tongue and groove interconnected building boards, each of two outer, harder layers and a soundproof arranged between them Layer composed of plastic building material. The middle, the groove or spring-forming insulating layers of the building boards are without binders immediately joined together while between the outer harder layers Gaps remain free for the binder. The one built from the individual building boards Wall becomes only through the mortar filling the joints of the outer layers held together.  

The still unsolved problem is a partition that can be manufactured quickly to create between individual rooms that is free of sound bridges and still is very stiff and resistant to transverse forces.

The object of the invention is to provide a plate-shaped component for separating rooms create that prevents the formation of sound bridges between these rooms and at the same time has high wall rigidity.

According to the invention, this is achieved by the measures according to claim 1. Advantageous refinements are the subject of the dependent claims.  

The system consists of plate-shaped elements to form the room walls. including sound-proofed element edges and on the other hand from special edge elements to preserve the acoustic properties Use of the elements as flanking components. The plate-shaped elements are after the double wall principle without discrete connecting points between the two Outer shells built up. The elements are self-supporting, so that they are without additional stand work.

Room dividing surfaces (walls) can be made from a large number of be built up by special edge elements, which the sound engineering favorable properties of the plate elements at joints to others Separating components (ceilings, walls) help to be supplemented.

The plate elements are constructed according to the double wall principle, consisting of the outer soundproof, heavy layers and a soft intermediate layer for acoustic separation and for mechanically stable connection of the layers a "monolithic" unit. The three layers of the elements are together glued and overall self-supporting.

The required deep resonance frequency of the unit is in addition to the selection suitable materials for the outer shell and the middle insulation layer in particular by profiling the inside of the outer layers (or vice versa the both sides of the insulation layer), which results in the resulting stiffness of the Insulation layer is reduced in a favorable manner.

The full-surface connection of the elements makes it possible to dispense with discrete ones Connections between the shells that adversely affect sound insulation, especially if they are faulty (too stiff). By - about Seen area - homogeneous structure of the elements you can adapt to the structural conditions can be tailored as desired, without their sound-absorbing Properties to lose.  

The edges of the plate elements are designed according to the invention so that the plates can be connected to each other in a soundproof manner without sound bridges. This is achieved by the element edges being tongue-and-groove, in the sense of being folded trained contact surfaces, are formed so that only the touch the appropriate layers.

Crossing points or T-joints of plate elements can be perform sound bridge-free so that from the outer layers of the continuous Elements matching strips are cut out into which the adjoining Elements are used. A simultaneous connection of the two in terms of sound technology separate outer shells of the elements with flanking walls or ceilings (Floors), which would represent a sound bridge, is either shortened by the Formation of one of the two outer shells and permanent elastic filling of the joint avoided or by using a special edge connector. Such special edge connectors can also be used where several Butt plate elements together. Such prefabricated joints have the advantage the greater certainty in the quality of the execution.

Advantageously, prefabricated, in particular, room-high Panel elements on the top and bottom edges already shortening one of the two Outer shells included, the load of the shortened shell by an appropriate Strips of springy material attached to the lower edge of the shortened shell, can be distributed.

The invention can be used as a quick-to-assemble, lightweight partition system in Buildings are used, especially where there is sound insulation between the rooms are required that do not have the same weight and soundproof components to achieve.

Due to unnecessary stud frames and a prefabrication of the edge and The joints of the elements are quick, simple and functionally reliable possible.  

If only two layers of the three layers of the wall elements are used - insulation layer and an outer layer - so these remaining elements can be used as facing shells, floating screeds and suspended ceilings with a sound-absorbing effect become.

The system proposed here does not require a stand and provides the sound-absorbing function through the prefabricated shape or prefabricated Connection elements safe. While with stud walls the adaptation to the structural conditions affect a large number of parts (stands, planking, damping filling), the elements proposed here only have to be in one Work process can be tailored to suit.

Known sandwich systems of comparable design have either rotating ones Connections along the edges of the elements (sound bridges) or get theirs Load capacity through the use of stiff cores. In both cases, the sound insulation ability of the multi-layer structure not used.

The following four drawings show an example of an element structure and Edge connections.

Fig. 1 two abutting walls,

Fig. 2 shows a cross-connection,

Fig. 3 A wall between the building floor and ceiling and

Fig. 4 A prefabricated element for the connection of four walls.

In Fig. 1, two wall elements 1 with two outer shells 2 , 3 and insulation layer 4 in between are shown. The two outer shells are profiled on the inside 2 a, 3 a like a sawtooth. Of course, other profiles are also conceivable, e.g. B. trapezoidal, rounded, meandering or corrugated sheet-like profiles. This profile can also be arranged on the insulation layer 4 , depending on which layer is easier to profile. In most cases, it will not be the harder outer shell 2 , 3 , but the soft insulation layer 4 . The profiling also serves to adjust the spring point of the insulation layer. The coarser the profile, the softer the insulation layer between the two outer shells.

At the joints, the outer shells are glued to the insulation layer, e.g. B. with Plastic adhesives or power connectors.

The outer shells can be made of hard plastic, e.g. B. cement-bound polystyrene, Wood, plasterboard or even metal plates, and optionally in a sandwich structure, e.g. B. metal-wood or wood-plaster or Metal, plastic. The thickness is between 1-10 mm depending on the material be.

The insulation layer can consist of mineral wool or soft foam. The thickness will be Depending on the material, it should be around 10-40 mm.

The outer contour of the edges 1 a advantageously has fold-shaped contact surfaces for connecting several plates.

Fig. 2 shows a cross connection, wherein the two horizontal plates have the rabbet-shaped contact surfaces, the other two plates have shortened outer shells 3 b on one side. Only the outer shells 2 , 3 or only the insulation layers 4 are connected . Structure-borne noise cannot therefore be transmitted from one outer shell 2 to the opposite outer shell 3 . In Fig. 2 the insulating layer running from top to bottom is drawn continuously. Since this may be technically complex, the intermediate piece 4 c can of course also be glued in place.

In Fig. 3 ceiling plates are shown after installation, the insulating layer of clarity is not depicted for the sake. The outer shell 3 is shortened at the upper and lower edges 3 b and thus enables the attachment of a permanently elastic joint 5 on the building ceiling 6 a and 6 floor, which also causes no structure-borne noise above the building floor or ceiling from the an outer shell 2 can reach the opposite outer shell 3 . It can also be advantageous to provide the floor or ceiling edges of the components with permanently elastic coverings 7 for floor-to-ceiling walls. In the same way, as mentioned above, all edges of components 1 and 8 could be provided with such documents.

Fig. 4 shows a prefabricated element 8 for the connection of four mutually perpendicular components 1 with the edges 1 a congruent fold-shaped contact surfaces 8 a.

Claims (5)

1. plate-shaped component with high sound insulation, with two opposing hard outer shells ( 2 , 3 ) and a soft insulation layer ( 4 ) between them and an edge area surrounding the component,
characterized in that the outer shells ( 2 , 3 ) each have a rabbet-shaped contact surface, which are arranged opposite one another in mirror image relative to the insulation layer, and
that the insulation layer or the outer shells ( 2 , 3 ) are profiled on their immediately adjacent sides (2a, 3a) to reduce the spring stiffness of the insulation layer. 2. Component according to claim 1, characterized in that the outer shell ( 2 , 3 ) with the insulating layer ( 4 ) is completely glued. 3. Component according to claim 1, characterized in that the profiling ( 2 a, 3 a) is sawtooth, trapezoidal, comb or corrugated sheet-shaped. 4. Component according to one of claims 1 to 3, characterized in that the outer shells ( 2 , 3 ) made of hard material, preferably made of wood, metal, plastic, plasterboard or sandwich structures made of these materials. 5. Component according to one of claims 1 to 3, characterized in that the insulating layer ( 4 ) consists of mineral wool or soft foam, preferably melamine foam.