DE102008032836B4 - Soundproofing for mobile partition elements - Google Patents

Abstract

A mobile divider element (61-65; 81) having an inner frame (14; 40; 41,43; 84,85), two connected to the inner frame (14; 40; 41,43; 84,85), in particular releasably connected Outer walls (10, 12; 23; 82, 83), at least one extension pressure shoe (22) and a sound damping body (31), wherein the modulus of elasticity of the sound damping body (31) from the modulus of elasticity of the remaining material or the remaining materials of the at least one Ausfahrdruckschuhs (22 ), characterized in that the sound attenuation body (31) is adapted to be arranged for acoustic decoupling between at least two parts of the Ausfahrdruckschuhs (22), wherein the Schalldämpfungskörper (31) for attachment between two outer parts of the Ausfahrdruckschuhs (22) is.

Description

The invention relates to a mobile partition element according to the preamble of claim 1 or 4 and a mobile partition wall system according to claim 10.

Mobile wall systems, also known as partition systems, are used for the variable subdivision of rooms. Known mobile wall systems have a usually mounted in the ceiling guide rail and possibly a floor-mounted guide rail and flat mobile wall elements that can be moved out of a rest position in which they require little space, and assembled into a complete partition and vice versa.

The individual mobile wall elements are clamped by means of movable elements, so-called Ausfahrdruckschuhe between ceiling and floor. The Ausfahrdruckschuhe are sunk in the non-actuated state wholly or partially in the mobile wall element. In the extended state they protrude beyond the mobile wall element and are pressed against the ceiling or floor or ceiling rail or bottom rail. In the context of the invention, the ceiling rail can be regarded as part of the ceiling and accordingly the bottom rail as part of the floor.

The mobile wall elements or mobile partition elements generally consist of an inner frame to which the outer outer walls are attached. The frame may extend along the boundary lines of the outer walls, it may also have transverse or longitudinal struts which extend through the interior of a mobile partition wall element.

About a mechanism for extending Ausfahrdruckschuhen the Ausfahrdruckschuhe are also connected to the frame of a mobile partition wall element.

In terms of acoustics, conventional mobile partition wall elements or mobile partition wall systems offer only limited sound insulation or limited sound insulation. Mobile partition wall elements or mobile partition wall systems offer several transmission paths for sound from a room into a room separated by the mobile partition wall system. The main transmission path is that an outer wall of a mobile partition wall element resonates as a resonance membrane with sound waves from a room and transmits them via the frame or other solid components to which the outer wall is connected inside the mobile partition element to the other outer wall. The second outer wall then serves as a loudspeaker diaphragm. This transmission path is similar to the system eardrum ossicle membrane of the human inner ear.

A second, subordinate transmission path is the sound transmission in which an outer wall receives sound waves, transmits them via the air in the interior of a mobile partition wall element to the second outer wall of the mobile partition wall element. Compared to the former direct transmission, however, this second transmission path is strongly attenuated.

Finally, sound can still penetrate through gaps between the mobile partition wall elements of a mobile partition wall system or between the elements and the ceiling or the floor or the walls of a room. Since these are usually sealed with sealing lips, but also this transmission path is strongly damped.

The said transmission paths for sound by mobile partition walls or mobile partition systems are independent of the materials used in the mobile partition elements. Common materials in this context are metal sheets, metal braces, wood or plastic parts.

Out DE 297 22 391 U1 a sound-insulated movable partition of several wall elements is known, which are movably suspended by means of roller carriage on a fixed side rails fixed to the ceiling, wherein a wall panel is removably attached to a support frame by means of suspension fitting having all-round circumferential grooves, in each case on the narrow sides of the wall paneling Edge protection strip is arranged with a seal which bears against pressure bars. The terminal strips fastened to the wall elements and to the wall connection element are associated with sealing receptacles in each of which a sound-insulating sealing profile is integrated, which essentially has roof-shaped sealing planes which come into positive and frictional contact with the end strips when the partition wall is closed.

In DE 297 22 391 U1 are also cover-side and bottom-side pairs of pressure bars for vertical extension and jamming of the partition wall elements between the floor and ceiling revealed, which are interconnected by clamping tab pairs, which are acted upon by the Ausfahrdruck. Between the pressure strip pairs Schallschluckkammern are arranged, which are filled with mineral wool and are closed with perforated plates. In the corner areas Druckleistenabschlussstücke are provided, in which the Druckleistenpaare are connected by a profiled shaft with each other, which receives the Ausfahrdruck.

The invention has for its object to improve the sound attenuation in mobile partition elements and mobile partition systems.

The object underlying the invention is achieved according to claim 1 by a mobile partition wall element with an inner frame, two with the inner frame, in particular detachably, connected outer walls, at least one Ausfahrdruckschuh and a Schalldämpfungskörper, wherein the modulus of elasticity of the Schalldämpfungskörpers from the modulus of elasticity of the remaining material or the other materials of the at least one Ausfahrdruckschuhs, which is further developed in that the Schalldämpfungskörper is formed to be arranged for acoustic decoupling between at least two parts of the Ausfahrdruckschuhs, wherein the Schalldämpfungskörper is formed for attachment between two outer parts of the Ausfahrdruckschuhs.

The idea underlying the invention is to interrupt the main transmission path for sound from one side of a mobile partition element to the other side, namely the direct sound transmission through sound conduction in the fixed structures of a mobile partition element, without the stability and structural integrity of a mobile partition element to impair. In this case, between parts of a mobile partition wall element, which have a certain modulus of elasticity, a sound damping body with a different modulus of elasticity interposed. In particular, the extension pressure shoe is divided into two parts, between which only a damped direct sound transmission takes place.

The elastic modulus of a solid determines the propagation properties for sound in the solid. When sound passing through a solid encounters a phase boundary with a material having a different modulus of elasticity, only part of the sound is transmitted to the other body and another portion of the sound is reflected at the phase boundary. If the part of the sound which has been transmitted into a sound-damping body comes to the next phase boundary to a component of a mobile partition element, in turn part of the sound is reflected at the phase boundary and only a part is transmitted into the further solid. Thus, there is a double attenuation of the transmitted sound. Accordingly, the amplitude of the sound transmitted from one outer wall of a mobile divider element over the inner structure of the element to the other outer wall is greatly attenuated.

The above-explained principle is applicable to all structural components of a mobile partition wall element, including the inner frame, inner frame cross braces or extension pressure shoes, or the connection of extension pressure shoes to the inner frame of a mobile partition wall element.

Advantageously, a sound damping body made of a plastic, in particular polyacrylic and / or polyethylene. These plastics have particularly good soundproofing properties.

A sound-damping body can be produced particularly easily in an injection molding process.

In conventional mobile partition elements, transverse struts are provided inside the inner frame for stabilizing the mobile partition element. The outer walls of the mobile partition wall element have in such cases on their insides holding elements, such as hooks, by means of which they are suspended from the cross braces, so that they are very stably fixed at several points over its surface. However, this also involves a large-scale direct sound transmission. It is therefore particularly advantageous to achieve the object in an alternative or additional embodiment according to claim 4, when in a mobile partition wall element with an inner frame, two with the inner frame, in particular detachably, connected outer walls and at least one Ausfahrdruckschuh, in particular one previously described The invention relates to a movable partition wall element according to the invention, wherein the modulus of elasticity of the sound attenuation body differs from the modulus of elasticity of the remaining material or the other materials of the outer walls and / or the inner frame, wherein the sound attenuation body is designed to provide acoustic decoupling between at least two parts of the inner frame and the outer walls to be arranged, wherein the sound-absorbing body is formed as a supporting element having recesses, of which a first recess for fo rmschlüssigen and / or non-positive and / or frictional attachment of the sound-absorbing body is formed on a horizontal, in particular metallic, transverse strut of the inner frame and at least one second recess is formed as a holder for attachment or suspension of at least one outer wall of the mobile partition wall element on Schalldämpfungskörper.

In this case, a Schalldämpfungskörper for acoustic decoupling between a Exterior wall and a cross strut used and simultaneously acts as a fixed point for the outer wall of the crossbar.

The outer walls are connected at their circumference in each case over a large area with the inner frame, so that the inner frame is a critical point in the sound transmission. It is therefore particularly advantageous if a further sound-damping body is provided, wherein the modulus of elasticity of the sound-damping body is different from the modulus of elasticity of the rest of the material or the other materials of the inner frame, wherein the sound-absorbing body is adapted to the acoustic decoupling between at least two parts of the inner frame to be arranged, wherein the sound-damping body for attachment between two parts of an at least two-part inner frame, each of which is provided a part for supporting an outer wall, is formed. By means of the sound damping body so the inner frame is divided into several, not directly in contact with each other, frame parts, each of which frame part is in each case only with an outer wall in conjunction. The sound transmission through the inner frame is therefore damped by the sound absorbing body.

Preferably, the arranged between the at least two parts of the Ausfahrdruckschuhs Schalldämpfungskörper is integrated in the Ausfahrdruckschuh.

Advantageously, a further sound-damping body is provided, wherein the modulus of elasticity of the sound-damping body is different from the modulus of elasticity of the remaining material or the remaining materials of the inner frame and the Ausfahrdruckschuhs, the Schalldämpfungskörper is formed to the acoustic decoupling between at least two parts of the inner frame and / or the Ausfahrdruckschuhs to be arranged, wherein the sound absorbing body is designed for attachment between an Ausfahrdruckschuh and the inner frame of a mobile partition wall element.

It is likewise advantageous if a further sound-damping body is provided, wherein the modulus of elasticity of the sound-damping body differs from the modulus of elasticity of the remaining material or the other materials of the outer walls and / or the inner frame and / or the at least one Ausfahrdruckschuhs, wherein the sound-damping body is formed, to be arranged for acoustic decoupling between at least two parts of a mobile partition wall element, wherein the two parts of the mobile partition wall element are parts of the inner frame, the outer walls and / or the Ausfahrdruckschuhs, wherein the sound absorbing body is arranged in a profile, in particular with other parts of the Profile is mechanically pressed. Such a profile forms the lateral border of the mobile wall element. With the vertical profiles, for example, adjacent mobile wall elements abut each other. Since the profile is connected to both outer walls, a profile forms a sound bridge, which can be interrupted by the use of a Schalldämpfungskörpers.

Advantageously, the inner frame has at least one, in particular metallic, transverse strut, wherein an inventive sound-damping body is arranged between the transverse strut and at least one outer wall. It is particularly preferred for the outer walls of the mobile partition wall element separate Schalldämpfungskörper are provided on a transverse strut or a plurality of transverse struts of the inner frame, to which only one outer wall can be fastened or fixed.

In this case, a direct sound transmission takes place only in a multiple attenuation, because sound that is absorbed by an outer wall is first transmitted via a damping body on a cross member, which have already contributed two phase transitions for damping. From the transverse strut, the sound is transmitted to another Schalldämpfungskörper to which the second outer wall is attached, so that the sound has to traverse a total of four interfaces. This causes a very effective sound attenuation.

Furthermore, the object underlying the invention is also achieved by a mobile partition wall system according to claim 10 having at least one mobile partition wall element according to the invention, as described above.

The invention will be described below without limiting the general inventive idea by means of embodiments with reference to the drawings, reference being expressly made to the drawings with respect to all in the text unspecified details of the invention. Show it:

1 a perspective view of a room with a mobile partition wall system,

2 a schematic cross-sectional view through a section of a mobile partition wall element with cross member and Schalldämpfungskörper,

3 a further schematic cross-sectional view through a mobile partition wall element according to the invention,

4a a schematic cross-sectional view through part of a Ausfahrdruckschuhs,

4b a further schematic cross-sectional view through a part of a Ausfahrdruckschuhs,

5 a further schematic cross-sectional view through an extension pressure shoe,

6 a schematic diagram of an inventive inner frame and

7 a schematic representation of a horizontal section through a mobile wall element according to the invention.

In the following figures, identical or similar elements or corresponding parts are provided with the same reference numerals, so that a corresponding renewed idea is dispensed with.

In 1 a space with a mobile wall system or a mobile partition wall is shown in perspective. In front of the mobile wall are the floor 50 , Side walls 51 . 52 and the ceiling 53 of the subdivided room. Through gaps in the mobile wall is the back wall 54 to recognize.

The mobile wall consists of mobile wall elements 61 . 62 . 63 . 64 . 65 attached to guide rails 55 are hung up. The Elements 61 and 62 are already in their predetermined positions in the mobile wall between ground 50 and blanket 53 braced. The mobile wall element 63 is in a position just before the connection to the mobile wall element 62 , By means of a crank 71 becomes the mobile wall element 63 , vertically between ground 50 and blanket 53 braced.

The mobile wall elements 64 and 65 are located on the right side in a parking position, which occupies little space. They are not in the parking position between the ceiling 53 and soil 50 braced, her Ausfahrdruckschuhe are in the mobile wall elements 64 . 65 sunk.

In 2 is a schematic cross-sectional view of a vertical section through a part of a mobile partition wall element according to the invention shown. exterior walls 10 . 12 are about fasteners 11 . 13 in recesses of a sound-absorbing body 15 fixed, another recess 16 having, with the sound damping body 15 on a crossbar 14 the inner frame of the mobile partition element rests. To the silencer body in the vertical direction 15 on the inner strut or cross strut 14 to fix, have the lateral boundary surfaces of the recess 16 retaining elements 17 . 18 on, which prevent the sound-absorbing body 15 in the vertical direction of the inner strut or cross strut 14 can be removed. There is a positive connection. Advantageously, the sound-absorbing body 15 horizontal on the strut 14 movable, allowing it from the side to the strut 14 can be deferred.

Sound, for example, from the outer wall 10 is taken over the fastener 11 on the sound-absorbing body 15 transferred and another fastener 13 in muted form on the outside wall 12 ,

In 3 is a variation of the embodiment 2 shown. In this case, there is only one wall 10 via a fastening element 11 with the sound-absorbing body 15 connected. Not shown is that on the same strut 14 or a parallel strut 14 another, possibly identical, sound-absorbing body 15 is attached, on which a second outer wall 12 is stored. In this case there is no direct sound exchange.

4a shows a schematic cross-sectional view of a vertical section through an inventive Ausfahrdruckschuh 22 a mobile partition wall element according to the invention 21 , The extension pressure shoe 22 puts with sealing lips 29 . 30 on the ground or ground 20 on. Because the sealing lips 29 . 30 made of an elastic material is the Ausfahrdruckschuh 22 acoustically largely from the ground 20 decoupled.

It is only one half of the cross section of the Ausfahrdruckschuhs 22 shown. Not shown is the mirror image, about the axis of symmetry 32 mirrored part of the extension pressure shoe 22 ,

Outside of the extension pressure shoe is a lower end of an outer wall 23 the mobile partition element 21 at. The outer wall 23 is by means of a likewise elastic sealing lip 28 acoustically from the extension pressure shoe 22 decoupled. The extension pressure shoe 22 consists of a basic body 24 made of a strong material, which is essential to ensure the stability of the construction. In the manner of a rail system is a connecting rail 26 , also made of a solid material, on the base body 24 attached, the connecting rail 26 laterally opposite the main body 24 is movable and optionally braced or locked.

Inward, to the center of the Ausfahrdruckschuhs 22 , joins the main body 24 a sound-absorbing body 31 made of a material with one of the material of the main body 24 different modulus of elasticity exists. Central points the extension pressure shoe 22 an opening made with a filler material 27 be filled. can. The opening may also be empty or the gap may be through the sound absorbing body 31 filled out. On the right side not shown in 4a closes a mirror image sequence of bodies of Ausfahrdruckschuhs 22 and a second side wall or outer wall 23 at. A sealing lip 30 can directly with the sound-absorbing body 31 be connected. This sealing lip 30 can be made of the same material as the soundproofing body 31 be or be formed integrally with this. The sound-absorbing body 31 overlaps the main body 24 at the top and bottom.

By means of the sound-absorbing body 31 are the two halves of the Ausfahrdruckschuhs 22 acoustically largely decoupled from one another.

4b shows a cross-sectional view through another example of a Ausfahrdruckschuhs 22 a mobile partition wall element according to the invention 21 , In contrast to the embodiment according to 4a includes the extension pressure shoe 22 a massive extension part 35 , such as a chipboard, as an integral part of the Ausfahrdruckschuhs 22 seals it in all directions. Between the extension part 35 and the sound attenuation body 31 ensures a sealing lip 38 for a seal and decoupling.

To increase the stability in the transverse direction is between symmetrically arranged extension parts 35 a cross connection 36 arranged with the extension part 35 is connected for example by means of a glue. Also the cross connection 36 may represent a damping element.

The cross section in 4b corresponds to a section along the line AA in the following 5 ,

In 5 is another cross-sectional view of the Ausfahrdruckschuhs 22 shown, in each case again only one half is shown, which is about the axis of symmetry 32 mirror image to the right repeated.

In contrast to 4a and 4b showing a vertical cross-sectional view through an extension pressure shoe 22 represent, it is in 5 around a horizontal section through the extension pressure shoe 22 at the level of the sealing lip 28 in 4a and 4b ,

In 5 It can be seen that it is a wall-mounted mobile partition element, which is in a recess in the wall 33 retracted. There is the Ausfahrdruckschuh 22 by means of a sealing lip 30 ' flush. From the inside to the outside includes the extension pressure shoe 22 an opening with filling material 27 which may also be empty or completely with a soundproofing body 31 can be filled, the sound-absorbing body 31 , the main body 24 of the extension pressure shoe 22 , a connecting rail with a sealing lip 28 and an outer wall 23 on the sealing lip 28 rests. The main body 24 ends in the wall 5 in front of the sealing lip 30 ' so that here too the two parts of the main body 24 on the left and on the right side of the symmetry axis 32 are acoustically decoupled from each other.

In 6 is a highly schematic representation of an inventive inner frame 40 shown, the two outer frame parts 41 and 43 which are each connected to an outer wall of a mobile partition wall element and therefore are also acoustically connected to the respective outer wall. The two frame parts 41 . 43 are completely separated acoustically from each other by an internal sound absorbing body 42 , Any sound that acts on an outer wall, therefore, must on the way to the opposite outer wall by a frame part 41 . 43 , the interface to the sound-absorbing body 42 , the further interface to the other frame part 41 . 43 and continue to the opposite outer wall and therefore pass through several boundary layers with different moduli of elasticity, whereby the sound is strongly attenuated on the way.

7 shows a schematic representation of a horizontal section through a mobile wall element according to the invention 81 with two outer walls 82 . 83 , Carrying elements are two struts of the inner frame 84 . 85 , The inner frame 84 . 85 is with the exterior walls 82 . 83 over two vertical profiles 86 . 87 or moldings connected. The profiles 86 . 87 each have connections to the outer walls 82 . 83 on, as a nose / hollow profile 88 are formed, which are equipped with internal seals. The outer walls may be designed to have different resonant frequencies and resonant frequency spectra. Also by this measure, the outer walls are further decoupled acoustically.

The vertical profile strips or profiles 86 . 87 are complementary male and female designed so that adjacent mobile wall elements 81 each the male profiles 87 in the recesses of the female profiles 86 intervention. The latter are with sealing lips 89 fitted.

The profiles 86 . 87 are formed in a composite construction, being on the outer sides, each connecting to the outer walls 82 . 83 have a material such as aluminum is used, and inside as Schalldämpfungskörper 90 . 91 another material, for example plastic. A stable connection of the different materials to a common profile 86 . 87 takes place for example by a mechanical compression.

The design of the profiles 86 . 87 Using different materials will cause sound waves no longer or only poorly over the profiles 86 . 87 from an exterior wall 82 to the other outer wall 83 be directed and vice versa.

LIST OF REFERENCE NUMBERS

10, 12

Exterior walls of a mobile partition wall element

11, 13

fasteners

14

Inner strut of a frame

15

Sound-damping bodies

16, 19

recess

17, 18

retaining elements

20

ground

21

Mobile partition wall element

22

Ausfahrdruckschuh

23

Exterior wall of the mobile partition element

24

Basic body of the Ausfahrdruckschuhs

25

fixing screw

26

connecting rail

27

filling material

28, 29

sealing lips

30, 30 '

sealing lips

31

Sound-damping bodies

32

line of symmetry

33

wall

34

Recess in the wall

35

outfeed

36

cross connection

37

gluing

38

sealing lip

40

Inner frame

41, 43

Carrying frame parts

42

Sound-damping bodies

50

room

51, 52, 54

walls

53

blanket

55

guide rails

61, 62

Mobile partition elements in final position

63

Mobile partition element in intermediate position

64, 65

Mobile partition elements in parking position

71

crank

81

mobile partition element

82

outer wall

83

outer wall

84

Inner frame

85

Inner frame

86

profile

87

profile

88

Nose- / hollow profile

89

sealing lips

90

Sound-damping bodies

91

Sound-damping bodies

Claims (10)

Mobile partition element ( 61 - 65 ; 81 ) with an inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ), two with the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ), in particular detachable, connected outer walls ( 10 . 12 ; 23 ; 82 . 83 ), at least one Ausfahrdruckschuh ( 22 ) and a sound-damping body ( 31 ), wherein the modulus of elasticity of the sound-damping body ( 31 ) from the modulus of elasticity of the remaining material or the other materials of the at least one Ausfahrdruckschuhs ( 22 ), characterized in that the sound-damping body ( 31 ) is adapted for acoustic decoupling between at least two parts of the Ausfahrdruckschuhs ( 22 ), wherein the sound-damping body ( 31 ) for attachment between two outer parts of the Ausfahrdruckschuhs ( 22 ) is trained. Mobile partition element ( 61 - 65 ; 81 ) according to claim 1, characterized in that a sound-damping body ( 15 ; 31 ; 42 ; 90 . 91 ) consists of a plastic, in particular polyacrylic and / or polyethylene. Mobile partition element ( 61 - 65 ; 81 ) according to claim 1 or 2, characterized in that a sound-damping body ( 15 ; 31 ; 42 ; 90 . 91 ) is produced in an injection molding process. Mobile partition element ( 61 - 65 ; 81 ) with an inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ), two with the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ), in particular detachable, connected outer walls ( 10 . 12 ; 23 ; 82 . 83 ) and at least one extension pressure shoe ( 22 ), in particular according to one of claims 1 to 3, characterized in that one, in particular further, sound-damping body ( 15 ), wherein the modulus of elasticity of the sound-damping body ( 15 ) depends on the modulus of elasticity of the remaining material or materials of the outer walls ( 10 . 12 ; 23 ; 82 . 83 ) and / or the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ), wherein the sound-damping body ( 15 ) is adapted for acoustic decoupling between at least two parts of the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ) and the outer walls ( 10 . 12 ; 23 ; 82 . 83 ), wherein the sound-damping body ( 15 ) is formed as a supporting element, the recesses ( 16 . 19 ), of which a first recess ( 16 ) for the positive and / or non-positive and / or frictional attachment of the sound-damping body ( 15 ) on a horizontal, in particular metallic, transverse strut ( 14 ) of the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ) is formed and at least one second recess ( 19 ) as a holder for attachment or suspension of at least one outer wall ( 10 . 12 ; 82 . 83 ) of the mobile partition element ( 61 - 65 ; 81 ) on the sound damping body ( 15 ) is formed. Mobile partition element ( 61 - 65 ; 81 ) according to one of claims 1 to 4, characterized in that a further sound-damping body ( 42 ), wherein the modulus of elasticity of the sound-damping body ( 42 ) depends on the modulus of elasticity of the remaining material or materials of the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ), wherein the sound-damping body ( 42 ) is adapted for acoustic decoupling between at least two parts of the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ), wherein the sound-damping body ( 42 ) for attachment between two parts ( 41 . 43 ) of an at least two-part inner frame ( 40 ), of which in each case a part for supporting an outer wall ( 10 . 12 ; 23 ; 82 . 83 ) is provided, is formed. Mobile partition element ( 61 - 65 ; 81 ) according to one of claims 1 to 5, characterized in that between the at least two parts of the Ausfahrdruckschuhs ( 22 ) arranged Schalldämpfungskörper ( 31 ) in the extension pressure shoe ( 22 ) is integrated. Mobile partition element ( 61 - 65 ; 81 ) according to one of claims 1 to 6, characterized in that a further sound-damping body is provided, wherein the modulus of elasticity of the sound-damping body of the elastic modulus of the remaining material or the remaining materials of the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ) and the Ausfahrdruckschuhs ( 22 ), wherein the sound-damping body is designed to be used for acoustic decoupling between at least two parts of the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ) and the Ausfahrdruckschuhs ( 22 ), wherein the sound damping body for attachment between the Ausfahrdruckschuh ( 22 ) and the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ) is trained. Mobile partition element ( 61 - 65 ; 81 ) according to one of claims 1 to 6, characterized in that a further sound-damping body ( 90 . 91 ), wherein the modulus of elasticity of the sound-damping body ( 15 ; 31 ; 42 ; 90 . 91 ) depends on the modulus of elasticity of the remaining material or materials of the outer walls ( 10 . 12 ; 23 ; 82 . 83 ) and / or the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ) and / or the at least one Ausfahrdruckschuhs ( 22 ), wherein the sound-damping body ( 15 ; 31 ; 42 ; 90 . 91 ) for acoustic decoupling between at least two parts of a mobile partition element ( 61 - 65 ; 81 ), wherein the two parts of the mobile partition element ( 61 - 65 ; 81 ) Parts of the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ), the outer walls ( 10 . 12 ; 23 ; 82 . 83 ) and / or the Ausfahrdruckschuhs ( 22 ), wherein the sound-damping body ( 90 . 91 ) in a profile ( 86 . 87 ), in particular with other parts of the profile ( 86 . 87 ) is mechanically compressed. Mobile partition element ( 61 - 65 ; 81 ) according to claim 4, characterized in that for the outer walls ( 10 . 12 ; 23 ; 82 . 83 ) of the mobile partition element ( 61 - 65 ; 81 ) separated on a transverse strut ( 14 ) or several cross struts ( 14 ) of the inner frame ( 14 ; 40 ; 41 . 43 ; 84 . 85 ) arranged Schalldämpfungskörper ( 15 ) are provided, on each of which only one outer wall ( 10 . 12 ; 23 ; 82 . 83 ) is fastened or attached. Mobile partitioning system with at least one mobile partition element ( 61 - 65 ; 81 ) according to one of claims 1 to 9.

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