EP2479359A2 - Sound insulation element and method for producing same - Google Patents

Abstract

The soundproofing element (100) has a base element (12) having a receiving area (24) for bulk material (28) and an opening for filling the bulk material into the receiving area. The receiving area is partially filled with a bulk material. The opening is closed by a closure element. Independent claims are also included for the following: (1) a method for fabricating a soundproofing element; and (2) a method for manufacturing a pre-fabricated building.

Description

The invention relates to a soundproofing element and a method for manufacturing this soundproofing element.

In the manufacture of prefabricated buildings, in particular residential buildings, wooden beam ceiling constructions or board stack ceiling constructions are frequently used. These ceiling constructions have the disadvantage that they are sensitive to sound. In particular, kicks of a person moving on the ceiling structure may be heard in underlying rooms. This is an impairment of the quality of living.

It is an object of the invention to provide a soundproofing elements and a method for manufacturing a soundproofing element, in which a good impact sound insulation is achieved in a simple manner.

This object is achieved by a soundproofing element having the features of claim 1 and by a method having the features of the independent method claim. Advantageous developments of the invention are specified in the dependent claims. According to the invention, the soundproofing element comprises a base element which comprises a receiving region for receiving bulk material and an opening for filling the bulk material into this receiving region. This receiving area is at least partially filled with the bulk material. The opening is closed by a closure element.

By using a bulk material a particularly good impact sound insulation is achieved because such bulk material has a much lower sound conduction than solid. By filling the bulk material in a primitive element, the soundproofing element can be prefabricated in a simple manner at the factory, so that it only needs to be transported to the place where the building is to be erected prefabricated and in a simple manner on a supporting substructure Ceiling must be applied. Thus, the assembly is simplified and the effort is reduced. The closing of the opening via the closure element ensures that the bulk material can not be lost during transport, so that the soundproofing element can be easily transported and handled. By closing the opening is meant that the opening is closed so that the bulk material does not fall out of the receiving area, or that the bulk material can indeed escape from the receiving area itself, but is still held within the soundproofing element.

The closure element comprises in particular a foil which closes the opening. The film is in particular completely wound around the base element and welded, so that even fine-grained bulk material can not escape from the receiving area or, if it escapes from the receiving area, in which by the welded film enclosed area is kept. In an alternative embodiment of the invention, the film can also be glued. Furthermore, a bag-shaped prefabricated, having an opening film may alternatively be used, which is slipped with its opening over the base member. Subsequently, the opening is welded or glued.

The base element has, for example, a base element and four side walls connected to the base element, wherein the base element and the side walls delimit the receiving region in which the bulk material is received. The bottom element and the side walls are in particular formed in one piece, so that a particularly simple production is achieved. The opening is formed by the side facing the base element, so that the bulk material can be easily supplied through this large opening and evenly distributed in the receiving area. As a result, a uniform impact sound insulation is achieved.

The bottom element has in particular at least one elevation, by which the receiving area is divided into at least two chambers. In a particularly preferred embodiment, a plurality of elevations are provided, so that more than two chambers are formed. The chambers are each at least partially, preferably completely, filled with the bulk material. In addition, other elevations may be provided in the bottom element, which have a lower height than the side walls, so that no division into a plurality of chambers is formed by them, but only a stiffening of the bottom element is given.

The bottom element is in particular made of plastic, cardboard and / or paper, so that it has a low weight and is easy to handle. As an alternative to a film, the closure element can also be formed by a cardboard lid or plastic lid, which is closed after filling the receiving area with the bulk material, so that the opening is closed by this lid.

The bulk material comprises in particular wood chips and / or cement, wherein the cement is present for example in granular form. It is preferably a mixture of wood chips and cement used, whereby a particularly good impact sound insulation is achieved. The bulk material is manufactured, for example, by shredding wood-cement boards, preferably residues of wood-cement boards used in other prefabricated parts, so that the bulk material is recovered by recycling residues and the soundproofing element can be manufactured in an environmentally friendly and cost-effective manner , Furthermore, the bulk material may also include sand, expanded concrete, cement-enclosed wood chips and / or gravel.

The soundproofing element has for example a length between 0.4 m and 0.8 m, a width between 0.3 m and 0.5 m and / or a height between 0.01 m and 0.1 m. Thus, the soundproofing element can be handled easily in a simple manner, so that the laying on the construction site can be done easily. Furthermore, this dimension ensures that when the receiving area is completely filled with bulk material, the soundproofing element has a weight of only a few kilograms, in particular from six to seven kilograms, so that one or even two soundproofing elements can be carried in a simple manner.

Another aspect of the invention relates to a method for manufacturing a soundproofing element, in which a bulk material is introduced through an opening in a receiving region of a base element and in which after opening at least partially filling the receiving area, this opening is closed by means of a closure element. As a closure element, in particular, a film is used, which is wound or slipped around the base element, so that it completely closes the opening. Subsequently, the film is preferably welded and / or glued, so that falling out of bulk material is avoided. Alternatively, a bag made of a film may be used, which is slipped over the base element. Subsequently, the opening of the bag is welded and / or glued.

Another aspect of the invention relates to a method for producing a building in prefabricated construction, in which a load-bearing substructure of a ceiling of the building is erected, and in which at least one soundproofing element of the type described above is placed on the load-bearing substructure. The substructure includes in particular reinforced concrete slabs, steel ribbed ceilings, wooden beam ceiling constructions and / or board stack ceiling constructions. By placing the soundproofing element a simple to be installed impact sound insulation of the building is achieved.

On the soundproofing element, a screed, another floor slab and / or a floor covering, such as carpeting, tiles, parquet and / or laminate, be laid.

Further features and advantages will become apparent from the following description, which explains the invention in conjunction with the accompanying drawings with reference to exemplary embodiments.

Figur 1

eine schematische perspektivische Darstellung eines Grundkörpers eines Schallschutzelementes;

Figur 2

eine Schnittdarstellung eines Schallschutzelementes gemäß einer ersten Ausführungsform der Erfindung;

Figur 3

eine Schnittdarstellung eines Schallschutzelementes gemäß einer zweiten Ausführungsform der Erfindung,

Figur 4

eine schematische Darstellung eines Gebäudes, und

Figur 5

eine schematische Schnittdarstellung eines Ausschnitts einer Decke des Gebäude nach Figur 4.

Show it:

FIG. 1

a schematic perspective view of a main body of a soundproofing element;

FIG. 2

a sectional view of a soundproofing element according to a first embodiment of the invention;

FIG. 3

a sectional view of a soundproofing element according to a second embodiment of the invention,

FIG. 4

a schematic representation of a building, and

FIG. 5

a schematic sectional view of a section of a ceiling of the building after FIG. 4 ,

In FIG. 1 is a schematic, perspective view of a base member 12 of a soundproofing element 10 according to a first embodiment of the invention shown. In FIG. 2 is a sectional view of the soundproofing element 10 after FIG. 1 shown.

The base element 12 comprises a bottom element 14 and four side walls 16 to 22, each arranged perpendicular to the bottom element 14. In an alternative embodiment, the side walls 16 to 22 may also be arranged at an angle between 70 ° and 120 ° to the bottom element 14.

The bottom element 14 and the side walls 16 to 22 are in particular formed in one piece, so that a high strength of the bottom element 12 is given. By the bottom member 14 and the side walls 16 to 22, a receiving area 24 is limited. In the production of the soundproofing element 10, a bulk material 28 is filled into the receiving region 24 through the opening 26, which is formed by the bottom elements 24 opposite open side of the base member 12.

As bulk material 28, shredded, cement-bonded chipboards are used, so that the bulk material 28 comprises cement-bound wood chips. For this purpose, for example, remnants of cement-bonded chipboard, which have arisen in the manufacture of other components, for example, in prefabricated building, further processed so that a recycling of otherwise useless waste happens. Furthermore, such a bulk material 28 has a good sound insulation, since this bulk material 28 conducts sound only poorly, so that the desired insulation effect is achieved. The consisting of wood chips and cement bulk 28 is also referred to as Crispan. Additionally or alternatively, the bulk material 28 may, for example, also comprise sand, expanded concrete and / or gravel.

After the bulk material 28 has been filled in the receiving region 24, the base element 12 is wrapped with a film 30 and the edges the film 30 are welded together, so that the main body 12 and the bulk material 28 are completely enclosed by the film 30 and the bulk material 28 can not be lost. Alternatively, a bag-shaped film 30 can be slipped over the base member 12. Thus, the soundproofing element 10 can be transported in a simple manner, without having to pay attention to the orientation of the soundproofing element 10. The soundproofing element 10 is preferably prefabricated at the factory, so that it can be installed quickly and easily together with other prefabricated components at the place where the building is to be erected. Thus, no bulk material must be handled consuming at the construction site.

The film 30 is in particular made of polyethylene (PE), so that it is inexpensive to procure and yet has a high strength, whereby a tearing of the film 30 is avoided.

In an alternative embodiment, the film 30 may also be stretched only over the opening 26 and secured to the sidewalls 16-22. Thus, although the opening 26 is closed by the film 30, so that falling out of the bulk material 28 is avoided from the receiving area 24, but it is not the entire base member 12 spanned by the film 30. Due to the lower material requirement of film 30 costs are saved.

Furthermore, alternatively, a lid for closing the opening 26 may be used. This cover is connected for example via a film hinge with one of the side walls 16 to 22 and can be folded after filling of the receiving area 24 with the bulk material 28 and attached to at least one of the other side walls, preferably on all other side walls.

The main body 12 is made of cardboard or a plastic, for example, so that the base body 12 has a high stability with low weight. Also, a lid used for closing the opening 26 is preferably made of cardboard or plastic in this case.

In FIG. 3 is a sectional view of a soundproofing element 100 according to a second embodiment shown. The receiving region 24 of this soundproofing element 100 has a plurality of chambers 102 to 106, in each of which the bulk material 28 is filled. For this purpose, the bottom element 14 has two elevations 108, 110 which have approximately the same height h as the side walls 16 to 22. Alternatively, more or less than two elevations 108, 110 may be provided. In a particularly preferred embodiment, two elevations 108, 110, which extend approximately parallel to the side walls 18, 20, and two elevations, which extend approximately parallel to the side walls 16, 22, are provided. Thus, nine chambers 102 to 106 are formed, in each of which bulk material 28 is filled.

In addition, the base member 14 further surveys, one of which is exemplified by reference numeral 112. These elevations serve 112, as well as the subdivision into a plurality of chambers 102 to 106, a stiffening of the soundproofing element 100th

Also in the second embodiment, the base member 12 is wrapped by a film 30, so that a loss of the bulk material 28 during Transport and / or laying the soundproofing element 100 is avoided.

The soundproofing element 100 has a height designated by h and a width designated by b. In addition, the soundproofing element 100 has an in FIG. 3 unmarked, directed in the paper plane or out of this length. The length has in particular a value between 0.4 m and 0.8 m, the width b a value between 0.3 m and 0.5 m and the height h a value between 0.01 m and 0.1 m. Thus, the soundproofing element 100 is easy to handle. With a complete filling of the receiving area 24 of the soundproofing element 100, ie all chambers 102 to 106, with a bulk cement and wood chips, the soundproofing element 100 has a weight of about six to seven kilograms, so that at least two such soundproofing elements 100 in a simple manner can be worn manually.

In FIG. 4 a schematic representation of a prefabricated building 200 is shown. The building has three ceilings 202 to 206, with in FIG. 5 a section of a sectional view of the ceiling 202 is shown. The other two ceilings 204 to 206 are constructed accordingly, so that the following statements apply analogously.

The blanket 202 includes a supporting substructure 208 that substantially supports the loads applied to the blanket 202. The substructure 208 may be formed, for example, wooden beam construction or board stack construction. Further, the substructure 208 may include reinforced concrete slabs and / or steel ribbed ceiling elements. On the upper side of the substructure 208, a plurality of soundproofing elements 210, 212 are placed, wherein in FIG. 5 only the detail of two of these soundproofing elements 210, 212 is shown. Thus, a footfall sound insulation is achieved by the soundproofing elements 210, 212.

On the soundproofing element 210, 212 may be a screed and on this in turn a floor covering, such as parquet, laminate, tiles and / or carpet, applied. Alternatively, at least one bottom plate which replaces the screed may be applied to the soundproofing elements 210, 212. In turn, the floor covering is then applied to this base plate.

LIST OF REFERENCE NUMBERS

10, 100, 210, 212

Soundproofing element

12

basic element

14

floor element

16 to 22

Side wall

24

reception area

26

opening

28

bulk

30

foil

102 to 106

chamber

108 to 112

survey

200

building

202 to 206

blanket

208

substructure

Claims (14)

Soundproofing element,
with a base element (12) which comprises a receiving region (24) for receiving bulk material (28) and an opening (26) for filling the bulk material (28) into the receiving region (24),
wherein the receiving area (24) is at least partially filled with the bulk material (28), and
wherein the opening (26) is closed by a closure element (30). Soundproofing element (10, 100, 210, 212) according to claim 1, characterized in that the closure element (30) comprises a film which closes the opening (26). Soundproofing element (10, 100, 210, 212) according to claim 2, characterized in that the base element (112) is completely enclosed by the film (30). Soundproofing element (10, 100, 210, 212) according to one of the preceding claims, characterized in that the base element (12) comprises a bottom element (14) and four side walls (16 to 22) connected to the bottom element (14), and in that Receiving area (24) through the bottom element (14) and the side walls (16 to 22) is formed. Soundproofing element (10, 100, 210, 212) according to claim 4, characterized in that the bottom element (14) has at least one elevation (108 to 112), preferably a plurality of elevations (108 to 112). Soundproofing element (10, 100, 210, 212) according to claim 5, characterized in that the elevation (108, 110) divides the receiving area (24) into at least two chambers (102 to 106). Soundproofing element (10, 100, 210, 212) according to one of the preceding claims, characterized in that the base element (12) made of plastic, cardboard and / or paper is made. Soundproofing element (10, 100, 210, 212) according to one of the preceding claims, characterized in that the bulk material (28) comprises wood chips, cement-bound wood chips, sand, gravel, expanded concrete, cement-enclosed wood chips and / or cement. Soundproofing element (10, 100, 210, 212) according to one of the preceding claims, characterized in that the bulk material (28) comprises shredded wood-cement boards. Soundproofing element (10, 100, 210, 212) according to one of the preceding claims, characterized in that the soundproofing element (10, 100, 210, 212) has a length between 0.4 m and 0.8 m, a width (b) between 0.3 m and 0.5 m and / or a height (h) between 0.01 m and 0.1 m. Method for manufacturing a soundproofing element,
in which a bulk material (28) is filled through an opening (26) into a receiving region (24) of a base element (12), and
in which, after the at least partial filling of the exception region (24) with the bulk material (28), the opening (26) is closed by means of a closure element (30). A method according to claim 11, characterized in that as a closure element (30), a film is used, and that the film is wound around the base member (12) and / or placed so that it closes the opening (26). A method according to claim 12, characterized in that the film, preferably airtight, is welded. Method of manufacturing prefabricated building,
a load-bearing substructure (208) of a floor (202 to 206) of the building (200) is erected, and
and in which at least one soundproofing element (10, 100, 210, 212) according to one of claims 1 to 10 is laid on the load-bearing substructure (208).

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