DE102008060157A1 - Wall element for mounting at separation-wall arrangement, has intermediate layer passed between outer plate and inner plate, and intermediate space filled predominantly with open-porous material i.e. flexible filling material - Google Patents

Abstract

The wall element has an outer plate (AP) e.g. gypsum fiber plate, forming a part of a wall outer surface (AF). An inner plate (IP) is connected with the outer plate and turned away from the wall outer surface. An intermediate layer (ZL) is passed between the outer plate and the inner plate. An intermediate space is limited by an inner surface of the outer plate and the inner plate along a direction perpendicular to the wall surface and by a gypsum fiber frame transverse to the inner plate. The intermediate space is filled predominantly with open-porous material i.e. flexible filling material.

Description

The The invention relates to a wall element for mounting on a partition support structure.

Partitions with mounted on a carrier assembly Wall elements are opposite solid walls easy and fast to build and in particular also allow one simple change of Floor plans. carrier arrangements contained in common execution scaffolding frame with horizontal and vertical struts on which wall elements solvable are attached. The wall elements are rigid in themselves.

Such partitions show often Unsatisfactory properties in the suppression of sound, which in generated by one or more such partitions limited space so that in the room itself an uncomfortably high noise level occur and / or sounds in an undesirable Measure in transmit a neighboring room can be.

It is known, the space assigning the outer surface of at least one part forming a larger wall surface Wall elements by depressions, z. B. circular or slotted, too structure, with such wells also via air-conducting flow paths to the inner surface of the wall element can be continued. The wall element can Also multi-shell composed of interconnected plates be.

Of the Invention is therefore based on the object, a wall element for Mounting on a partition support structure to specify which has improved properties of the sound reduction.

The The invention is described in claim 1. The dependent claims contain advantageous embodiments and modifications of the invention.

Of the inventive multilayer Structure of the wall element connects in an advantageous new way individual For noise reduction partially already common measures and achieved for from wall elements on a carrier assembly constructed partitions very good values of sound reduction. The new wall elements are advantageously in the same or similar manner as to handle common Wall elements and in particular for use on conventional carrier arrangements customizable, so that wall elements in existing wall arrangements are interchangeable with the new wall elements. The room assigning Outer surface of the outer plate can be designed decorative as in known wall elements. The individual wall elements all combine to reduce the reflection and transmission of sound to or through the wall elements essential Components, allowing a particularly simple and advantageous assembly in the construction of a partition wall assembly is possible.

The first openings in the outer surface of the outer panel take airborne sound power out of the room and forward it as Airborne sound through the flow channels and the second openings the interior surface facing away from the room the outer panel through the outer panel and thereby reduce the sound level in the room.

The outer plate is typically regarded as inherently rigid and can in particular in itself more common Way z. B. as a so-called MDF board or as a gypsum fiber board, preferably with a decorative layer, for. Veneer or plastic layer, on the outside be executed. Execution the outer panel As gypsum fiber board is both in terms of fire protection properties as well as with regard to the sound reduction of particular advantage. Such plates are used as wall elements in partition systems in use.

In special design can the outer plate also multilayered with an outer layer forming the outer surface, z. B. a few millimeters thick HDF layer, and one of the predominant Thickness range of the outer panel be formed entnehmenden core layer, wherein the core layer advantageously has a much lower average density than the outer layer. The core layer is advantageously of a dimensionally stable frame laterally, d. H. across the surface normal the outer surface, surrounded, which again from one of the common wall elements Materials such. B. MDF or gypsum fiber material may consist. The core layer can, in particular, in an advantageous embodiment as a honeycomb structure, preferably paper honeycomb structure to the surface normal parallel to the outer surface Honeycomb axles executed be. The honeycombs form flow paths without further processing through the core layer. Advantageously, on the side facing away from the outer surface the core layer arranged an inner layer whose material, for. HDF, again a higher density has as the material of the core layer and the inner surface of the outer plate forms and the second openings contains. Advantageously, in this case, in particular in the stated embodiment of the core layer as a honeycomb structure, on average the transverse dimension of the second openings to be taller as the transverse dimension of the first openings. advantageously, can be the cumulative area fraction the second openings on the inner surface be bigger than the cumulative area fraction the first openings on the outside surface.

The first and / or the second openings can in be designed slit-shaped in a first advantageous embodiment. In another advantageous embodiment, the first and / or the second openings circular, be designed in particular as holes. The flow paths through the outer panel can through for example, as from the outer surface to palm running through holes be whose diameter is preferably smaller than the thickness of the Outer plate. In another advantageous embodiment can the flow paths through the outer panel through to overlaps of first and second openings be formed, with first and second openings in projection in the direction the surface normal the outer surface itself only partially cover and the cumulative depth of first and second openings at least equal the thickness of the outer panel is. Such plates are as sound-reducing wall elements known. In the execution the outer panel with one in the direction of the surface normal of the Outside surface open to flow Core layer, in particular a honeycomb structure, forms the core layer an air-conducting Connection between outer layer and inner layer.

The wall element on the outer surface and thus the space facing away from the final side inner panel is designed as a continuous air-tight plate, which is to be understood by airborne sound that no airborne sound and air flow through the plate enabling open paths should be given by the inner plate. In this way, a high degree of insulation of the sound propagation (transmission) to the side facing away from the outer plate of the inner plate can be achieved. The inner plate is for this purpose advantageously at least predominantly of a material having a specific gravity of at least 1 g / cm ³ , preferably of a gypsum fiber material. The thickness of the inner plate is advantageously at least 10%, in particular at least 15% of the total thickness of the wall element.

The Liner advantageously comprises a frame and one of this side and the outer plate and inner plate limited in the direction of the surface normal of the outer surface Gap. The frame is advantageously in turn airborne sound, d. H. that in the lateral direction no airborne conductive and an airflow leading paths through the frame laterally out of the gap to the outside lead the wall element. The frame consists in an advantageous embodiment of an MDF or HDF material or preferably a gypsum fiber material. The frame advantageously has Direction of the surface normal of Outer surface one smaller extent than transverse to it and is preferably by composed of several plate sections. The inner plate is advantageously over the Frame with the outer plate connected, preferably via Adhesive bonds.

Of the Space is at least predominantly filled with an open-pore, preferably flexible filling material. The filling material preferably has a fibrous structure and can in an advantageous execution given by mineral fibers, in particular in the form of fiber mats be. The thickness of the gap in the direction of the surface normal is preferably greater than the thickness of the inner plate.

Of the Frame is advantageously on at least two parallel edges the outer plate, preferably circumferentially offset on all edges from the edges to the center of the area around an edge strip. The edge strip can advantageously mounting elements for mounting the wall element on a carrier assembly and is preferably at least 5 mm wide.

advantageously, are the second openings in the inner surface the outer panel and preferably also the first openings in the outer surface of the outer panel in projection in the direction of the surface normal on the surface area of the intermediate space. Second openings in the area of the frame are ineffective, but are the airborne soundproof execution of the frame.

A size Thickness of the intermediate layer with the filling material is advantageous in itself, but what the cumulative thickness of the entire Wall element and the Wanddikke a partition element increases accordingly and the Handling of the wall element difficult. In an advantageous embodiment can with larger depth the entire wall element a layer of multilayer structure be with an intermediate plate, which is parallel to the inner filling plate and outer plate extends and against both by one each with a filler of the type mentioned spaced part-space is spaced. The intermediate plate can advantageously according to the type of outer plate flow channels between the two partial spaces exhibit. The intermediate plate is preferably a gypsum fiber board.

Especially for partitions with a common one Wall thickness of about 100 mm the cumulative thickness of liner and inner panel advantageously at most 2.5 times, in particular at most 2 times the thickness the outer panel.

The The invention is based on preferred embodiments illustrated in detail with reference to the figures. there shows:

1 a front view of a wall element in a wall arrangement,

2 a side view of a wall element,

3 a sectional view of an edge region of a wall element,

4 one too 3 alternative design,

5 a trace to the wall element after 4 .

6 a wall construction with wall elements.

1 shows with a view towards the viewer in a room facing outer surface of a wall element WE in a partition wall assembly with further, indicated only by dotted lines adjacent wall elements, with A and B two different design variants are shown. The wall element WE is typically rectangular. The adjacent wall elements may be designed in the same way or be designed differently, in particular as smooth wall elements without special sound-reducing properties. In the outer surface AF of the wall element facing the viewer in a room, opening structures are provided, which in the example A are designed as horizontal strip-shaped grooves ON1. The grooves extend in the horizontal x-direction to the edge of the wall element WE, but may also be limited to an area bounded by the edge by an edge strip inner surface area.

In the design variant B is the opening structure by, for example arranged in rows or other pattern circular openings Given OB1, the hole pattern in this case is not up to the edge led the wall element is. Such designs of exterior surfaces AF of sound-reducing wall elements are in themselves in this form or further For men, which also suitable for a wall element according to the invention are known.

In The pictures are partly coordinates of a right-angled one x-y-z coordinate system with x as the wall surface parallel horizontal coordinate, z as parallel to the wall surface vertical coordinate and y as normal to the surface normal flat outer surface AF parallel Coordinate with drawn. The outer surface AF is thus in one x-z plane.

2 shows a side view of a wall element WE after 1 in the embodiment with groove-shaped openings ON1 in the outer surface AF. The wall element is constructed in multiple layers with an outer plate AP which carries the viewer in a space facing outer surface as a viewing element of the wall element, an intermediate layer ZL and an inner plate IP facing away from the space. Interlayer ZL and inner plate IP are in 2 offset in the z-direction and preferably also in the x-direction from the edges of the outer panel AP to an edge strip RB to the center of the surface inwardly. In the edge strip RB can advantageously be provided attachment structures for mounting the wall element to a support assembly. The surface normal FN of the outer surface AF runs parallel to the y-direction of the rectangular coordinate system. The intermediate layer ZL and the inner panel IP form the outer panel AP parallel layers of the multilayer wall element.

In 1 are indicated with a broken line openings ON2, which are introduced on the viewer facing away from the inner surface of the outer plate AP as wells and executed in the example sketched as z-directional grooves whose extension in the z-direction is less than the extension of the intermediate layer ZL in the z direction. In the y-direction, the groove-shaped recesses ON1 in the outer surface AF and the groove-shaped recesses ON2 in the inner surface of the outer plate AP overlap, so that at the crossing points of the grooves ON1 and ON2 through the outer plate AP in the y-direction through channels arise, which air movements allow in particular as airborne sound propagation in the y-direction through the outer panel and promote and thus derive airborne sound from the room through the outer panel and thereby reduce the sound level in the room with respect to a continuous smooth outer surface AF.

3 shows a section of a lower edge region of a wall element as a sectional view with an xz-sectional plane at the y-position of a groove ON1 in the outer surface AF of the outer panel AP. At the intersection areas of the grooves ON1 and ON2, the aforementioned flow channels KA are formed through the outer panel AP in the y-direction.

The intermediate layer ZL comprises a peripheral frame ZR, which may be composed in particular of strip-shaped plate parts and is preferably glued to the inner surface AF of the outer plate AP. The frame ZR is offset against the edge of the outer panel AP by an edge strip RB towards the center of the area. Mounting structures for mounting the wall element on a carrier arrangement can be provided in the edge strip area RB. Such mounting structures can vorbe vorbe in particular at a defined position mounted bores in the inner surface IF of the outer panel AB included, in which matched to the carrier assembly mounting elements can be screwed.

On the side facing away from the outer plate AP side of the intermediate layer ZL, the inner plate IP is arranged, the edges of which preferably coincide substantially with the edges of the frame ZR. The inner plate IP is connected to the frame ZR in the x- and z-direction, preferably glued and thus indirectly also firmly connected to the outer plate AP. The inner panel IP is advantageously carried out continuously flat and is preferably made of a material having a density of at least 1 g / cm ³ . Particularly advantageous is the use of a gypsum fiber board as the inner panel IP.

The outer plate AP can be done in the usual way for example, from an MDF board or also from a gypsum fiber board with a plastic or veneer facing on the outer surface. Other materials are known in wall cladding panels and equally suitable. The frame ZR of the intermediate layer also exists preferably made of MDF or gypsum fiber board material.

The palm IF of the outer panel AP and the inner plate IP define a gap in the y-direction of the intermediate layer ZL, which is transverse to the y-direction the surface normal the outer surface AF circulating in the x and z directions is limited by the frame ZR. The inner panel IP and the frame ZR are advantageously designed airborne sound, d. h. That of the space no airborne sound flow paths through the frame ZR or pass the inner panel IP out.

In The space is an open-pore, in particular flexible filler FM arranged, which is at least the predominant, preferably largely the whole Volume of the gap fills. Such an open-pored, flexible filling material can be in an advantageous Embodiment a fibrous material, in particular a mineral fiber material is formed which is advantageously commercially available in mat form and tailored to the transverse dimensions of the gap. Between the filler FM and the inner surface IF of the outer panel can advantageously be a thin Nes air-permeable Acoustic fleece AV inserted, for example, on the inner surface IF of the outer panel be glued on.

The Thickness DZ of the intermediate layer ZL in the y direction is advantageous greater than the thickness DI of the inner plate IP. In particular for partitions with common Wall thickness of approx. 100 mm and double-sided planking with wall elements of the type described, the thickness DZ is preferably not more than twice as big like the thickness DI. The cumulative thickness DZ + DI of intermediate layer and inner plate is then advantageously at most 2.5 times, preferably at most 2 times the thickness DA of the outer plate. This ensures that the increased by intermediate layer and inner plate depth of the wall element remains so limited that the wall element used in common carrier arrangements on both sides and another intermediate layer of insulation lying between each other Inserted on a partition wall elements are inserted can.

4 shows one too 3 alternative embodiment of an outer plate AP4, which in this example a multilayer of a thin, for example 1 to 3 mm thick, stable outer layer SA, for example an HDF plate in particular with a veneered or plastic-coated outer surface AF4 and a likewise rigid inner layer SI, preferably also as a 1 to 3 mm thick HDF plate and a contrast thicker core layer PW, wherein the core layer PW forms an air-flow-open structure between the outer layer SA and inner layer SI and leads to a very low specific gravity of the core layer. In a particularly advantageous embodiment, the core layer PW is given by a paper honeycomb structure whose honeycomb axes run parallel to the y-direction or the surface normal FN. The core layer PW is closed to the edge of the outer plate by a dimensionally stable frame AR, for example, strip-shaped MDF plate sections. Such plate assemblies with thin boundary layers and a thicker core layer of paper honeycomb are known per se and used in addition to the application in wall panel elements, for example, for door leaves.

In the outer layer SA, a multiplicity of bores BA are introduced as first openings whose transverse dimensions parallel to the outer surface AF3 are advantageously no greater than the thickness of the outer layer SA, so that the viewer does not visually notice the paper honeycomb structure as such. In the inner layer SI openings BI are provided, which are preferably designed as bores whose transverse dimensions are larger than the transverse dimensions of the openings BA in the outer layer SA. Advantageously, the area ratio of the openings BI to the total area of the inner surface IF4 is greater than the area ratio of the first openings BA to the total area of the outer area AF4 of the outer layer SA. The bores BA and BI as the first and second openings are limited to surface areas of outer layer SA and inner layer SI, which joined in projection in the y-direction with those of the gap within the frame ZR menfallen.

5 shows a diagram of a measurement of the sound absorption in the reverberation space for a wall element of the 4 sketched type, wherein the sound absorption coefficient is plotted against the frequency. It is achieved in particular in the main frequency range of human speech from 400 Hz to 2,500 Hz advantageously high sound absorption of more than 0.8.

6 shows a wall assembly between the bottom surface BO and ceiling DE in cross-section of an xy plane, in which in a vertical direction middle area wall elements WEL, WER of the present invention are inserted into a carrier assembly, whereas in a more overlying it and a lower underlying area simpler Wall elements WO are available. The wall elements are not shown in their scale vertical extension. This takes into account the fact that sound sources also occur in a middle room height range between floor and ceiling and in such a medium altitude range reflections are also particularly disturbing. The carrier arrangement has, for example, a horizontal and vertical struts SH, SV forming a grid frame, on which the wall elements are detachably mounted with their edge regions RB by means of fastening elements BE. Advantageously, sides of the partition wall arrangement facing both adjacent spaces can be covered with wall elements WEL, WER according to the invention. In the interior of the partition wall arrangement, a layer of damping material DM is advantageously provided between the opposing inner panels of wall elements WEL, WER, which are disposed on different sides of the partition wall. In wall areas with conventional wall elements WO, the layer of insulating material can advantageously be correspondingly larger and fill the entire wall interior space between opposing wall elements.

The above and those specified in the claims as well as the figures removable features are both individually as well as in various combinations advantageously feasible. The invention is not limited to the described embodiments limited, but in the context of expert Can s changeable in many ways.

Claims (18)

Wall element for mounting on a partition support structure, with a part of the outer wall surface (AF) forming outer panel (AP) and one connected to this, the wall outer surface facing away Inner plate (IP) and one running between outer plate and inner plate and this interconnecting intermediate layer (ZL), wherein - the outer plate on its outer surface (AF) first openings (ON1, OB1, BA) and on its inner surface (IF) second openings (ON2, BI) and between them through the outer plate leading open air flow paths having, - the Inner plate IP) is designed airborne soundproof, - the intermediate layer / ZL) contains a preferably air-soundproof frame (ZR) and a gap, which in the direction of the wall surface normals through the inner surface (IF) of the outer panel (AP) and through the inner plate (IP) and across it through the frame (ZR) limited and at least predominantly filled with an open-pore preferably flexible filler material (FM). Wall element according to claim 1, characterized in that in that the first and / or the second openings (ON1, ON2) are slot-shaped. Wall element according to claim 1 or 2, characterized that the first and / or the second openings in the direction of the surface normal of wall surface extending bores (BA, BI, OB1) are. Wall element according to one of claims 1 to 3, characterized flow paths (KA) through the outer panel through overlaps of first and second openings (ON1, ON2) are formed. Wall element according to one of claims 1 to 4, characterized that flow paths through the outer plate as through the entire outer panel running through holes are. Wall element according to one of claims 1 to 5, characterized that the outer panel is multi-layered is constructed and at least one outer surface forming the outer layer (SA) and one in contrast contains thicker core layer. Wall element according to claim 6, characterized in that that the core layer consists of a through a paper honeycomb layer (PW) is formed. Wall element according to claim 6 or 7, characterized that the outer panel on the core layer (PW) facing away from the inner surface forming one Inner layer (SI) contains. Wall element according to claim 8, characterized in that that the transverse dimensions and / or the area ratio of the second openings are larger in the inner layer as at the first openings in the outer layer. Wall element according to one of claims 1 to 9, characterized that the inner plate at least predominantly consists of a gypsum fiber material. Wall element according to one of claims 1 to 10, characterized that the framework is at least predominantly consists of a gypsum fiber material. Wall element according to one of claims 1 to 11, characterized that the filler material (FM) at least predominantly made of a flexible porous material. Wall element according to claim 12, characterized in that that the flexible open-pored material by a fibrous material is formed. Wall element according to one of claims 1 to 13, characterized that in the direction (y) of the surface normal the wall surface the thickness (DZ) of the gap is greater than the thickness of the inner plate. Wall element according to claim 14, characterized in that that the thickness (DZ) of the gap is at most 2 times the thickness the inner plate is. Wall element according to one of claims 1 to 15, characterized that the cumulative thickness (DI + DZ) of intermediate layer and inner plate maximum 2.5 times the thickness (DA) of the outer panel. Wall element according to one of claims 1 to 16, characterized that frame (ZR) and inner panel (IP) against the edge of the outer panel to the center of the area offset by an edge strip (RB). Wall element according to one of claims 1 to 17, characterized that the openings in the inner surface the outer panel on the surface area of the intermediate space are.