EP1866492B1 - C-shaped profile and partition comprising a c-shaped profile - Google Patents

Description

The present invention relates to a partition wall with a C-section made of sheet metal, which has two leg sections and a bottom section connecting the leg sections. The invention further relates to a method for mounting a partition.

Such a profile is from the DE 102 15 097 A1 known. In order to achieve a bulkhead construction with transverse suspension, the attachment portions of the prior art profile are at an angle of more than 90 ° to the base portion, which remains due to the rigidity of the material even after assembly. In this way, the areas of the fastening sections facing the base section remain free of the planking. The DE 102 15 097 A1 discloses a partition wall or a method having the features of the preamble of claim 1 and claim 11, respectively. Other C-profiles are from the DE 100 13 991 C1 known. They are used regularly in the field of interior construction for the creation of walls in the drywall. The leg sections are aligned at right angles to the bottom section in the prior art C-profiles. Accordingly, in the DE 100 13 991 C1 stated that the leg portions are arranged parallel to each other.

While good soundproofing values can now be achieved with drywall panels made using such prior art C-profiles, there is a desire to further improve soundproofing properties. The manufacturing costs should not be increased or as little as possible.

The object of the present invention is therefore to further develop a partition with a C-profile of the type mentioned at the outset so that the soundproofing values are improved, in particular at low production costs. The object of the invention is also to provide a method for mounting such a partition.

This object is achieved in a partition by the features of claim 1. The object is achieved in a method for mounting by the features of claim 11.

By this design, in the unloaded state of the C-profile at least one and preferably both leg sections have something to the outside, the sound insulation is significantly improved. If the C-profile is plastered with plasterboard or the like during installation, the C-profile may be loaded, whereby the C-profile is deformed and the opening angle between the leg section and the bottom section is reduced again by the forces that occur. Nevertheless, for the finished partition, a better behavior with respect to the sound insulation in comparison with conventional C-profiles. An advantage of the design according to the invention that the improvement of the sound insulation is achieved without additional elements and therefore no or only small additional costs incurred in the production of the C-profile or during assembly of the partition.

It is provided that the leg portions and the bottom portion are elastically or elastically and plastically deformable relative to each other so that the leg portions are aligned at right angles to the bottom portion in the mounted state. This results in that the leg sections mounted in the Condition elastically deformed against the planking under prestress.

According to the invention, it is provided that the opening angle between the at least one of the leg sections and the bottom section in the unloaded state of the C-profile is greater than or equal to 91 °. It has proven useful if the opening angle between the at least one of the leg portions and the bottom portion in the unloaded state of the C-profile is greater than or equal to 92 °.

A further improvement is achieved if the opening angle between the at least one of the leg sections and the bottom section in the unloaded state of the C-profile is less than or equal to 95 °, in particular less than or equal to 94 °.

Particularly advantageously, the opening angle between the at least one of the leg portions and the bottom portion in the unloaded state of the C-profile is between 92.5 ° and 93.5 ° and is in particular 93 °. Furthermore, it can be provided that the two leg sections are not arranged parallel to each other in the unloaded state of the C-profile and enclose an angle between 2 ° and 10 °, in particular between 4 ° and 8 °. Here, the distance between the ends of the leg portions remote from the bottom portion is greater than the distance between the ends of the leg portions facing the bottom portion.

The preparation is particularly simple if the leg sections and the bottom section consist of a one-piece sheet metal part. A further improvement of the sound insulation is achieved in that at least one of the leg portions has beads which project in particular outwards. Especially with a combination of the beads with the invention in the unloaded state enlarged opening angle results in particularly good sound insulation values.

It has proven useful if the beads extend in the longitudinal direction of the C-profile and in particular extend over the entire length of the C-profile.

According to a particularly advantageous embodiment of the invention, the C-profile has knurling in at least part of its surface. The knurling results in local, in particular punctiform deformations in the sheet metal. In this case, a large number of deformations per unit area, for example more than 5 deformations per cm ² or more than 10 deformations per cm ^{2 can be} provided. The thickness of the sheet may be between 0.3 mm and 3 mm, in particular 0.4 mm to 0.6 mm.

Other objects, features, advantages and applications of the present invention will become apparent from the following description of embodiments with reference to the drawings. All described and / or illustrated features alone or in any meaningful combination form the subject matter of the invention, regardless of the summary in individual claims or their dependency.

Figur 1:

eine perspektivische Ansicht eines erfindungsgemäßen C-Profils;

Figur 2:

eine perspektivische Ansicht einer weiteren Ausführungsform eines erfindungsgemäßen C-Profils;

Figur 3:

eine perspektivische Ansicht einer noch weiteren Ausführungsform eines erfindungsgemäßen C-Profils;

Figur 4:

einen Querschnitt durch das in Figur 2 dargestellte Profil;

Figur 5:

einen Querschnitt durch das in Figur 2 dargestellte C-Profil, eingebaut in eine Trennwand;

Figur 6:

eine perspektivische Ansicht einer weiteren Ausführungsform eines erfindungsgemäßen C-Profils und

Figur 7:

einen Querschnitt durch das in Figur 6 dargestellte C-Profil, eingebaut in eine Trennwand.

Show it:

FIG. 1:

a perspective view of a C-profile according to the invention;

FIG. 2:

a perspective view of another embodiment of a C-profile according to the invention;

FIG. 3:

a perspective view of yet another embodiment of a C-profile according to the invention;

FIG. 4:

a cross section through the in FIG. 2 represented profile;

FIG. 5:

a cross section through the in FIG. 2 illustrated C-profile, installed in a partition wall;

FIG. 6:

a perspective view of another embodiment of a C-profile according to the invention and

FIG. 7:

a cross section through the in FIG. 6 illustrated C-profile, installed in a partition.

The figures show various embodiments of a C-profile 1, 1 ', 1 "of sheet metal for partition walls planked on both sides Each C-profile 1, 1', 1" has two leg sections 2 and a bottom section 3.

The bottom portion 3 is formed substantially flat. In the in the FIGS. 1 to 3 1, a groove 4 is provided in each case on both sides, which extends in the longitudinal direction of the C-profile 1, 1 ', 1. The bottom section 3 may have openings, cutouts or punched-out holes, not shown C-profile 1,1 ', 1 "an oblong shape. This also applies to the bottom section 3. In addition, the bottom section 3, unlike shown, may also be provided with profilings.

On the longitudinal sides of the bottom portion 3, a leg portion 2 is provided in each case. As in particular in FIG. 4 can be seen, close the leg sections 2 in the unloaded State of the C-profile 1, 1 ', 1 "with the bottom section 3, an opening angle R which is greater than or equal to 91 ° .The opening angle R, measured between the inner side 5 of the bottom section 3 facing the leg sections 2 and the leg sections 2, is preferably between 91 ° and 95 °, whereby ranges between 92 ° and 94 ° and in particular between 92.5 ° and 93.5 ° have proven particularly useful According to a preferred embodiment, the opening angle R is 93 ° in that the leg sections 2, starting from their connection point to the bottom section 3, are slightly inclined or opened outwards.

As shown, the leg portions 2 in the unloaded state of the C-profile are not parallel but arranged at an angle to each other. They include between them an angle between 2 ° and 10 °, in particular between 4 ° and 8 °. In this case, the distance between the ends 6 of the leg sections 2 remote from the bottom section 3 is greater than the distance between the ends 7 of the leg sections 2 facing the bottom section 3. Each of the two leg sections 2 of a C-section 1, 1 ', 1 "closes the bottom portion 3 an identical opening angle R, which, as described above, is greater than 90 °.

The integrally formed C-profile 1 is made of sheet metal. In the manufacture of the deformations of the sheet material shown in the figures are made and in particular the leg portions brought by bending or cold rolling of the sheet material in the form shown in the figures. Here, the leg portions 2 and the bottom portion 3 in the finished component relative to each other either elastically or elastically and plastically deformable so that the leg portions can be aligned in the assembled state perpendicular to the bottom portion.

The leg sections 2 each have in the illustrated embodiments in the longitudinal direction of the C-profile 1,1 ', 1 "extending beads 8,8', 8". These are produced by plastic deformations of the sheet material in the region of the leg sections 2. At the in FIG. 1 illustrated embodiment, three parallel and extending in the longitudinal direction beads 8 are provided, which point inwards. Accordingly arise in the otherwise flat surface of the leg portions 2 groove or channel-shaped depressions. At the in Figures 2 and 3 In each case, four parallel corrugations 8 ', 8 "extending in the longitudinal direction of the C-profile are provided on each leg section 2, but facing outwards, the upper regions of the corrugations 8', 8" forming common line-shaped or strip-shaped support surfaces for the planking, which lie in a common plane. The number of beads 8, 8 ', 8 "can be varied according to the respective requirements.

At the outer ends of the leg portions 6 also an inwardly facing folded portion 9 is provided.

At the in FIG. 3 illustrated embodiment, the sheet of the C-profile 1 in its surface has a knurling. Correspondingly, a large number of local, in particular punctiform, deformations of the sheet metal material result, which in particular increase its rigidity. In addition, the illustrated combination of beaded leg sections 2 and / or knurling, together with the leg sections 2, which are slightly open in the unloaded state of the C-profile 1, has a positive effect on the sound transmission properties in terms of better sound insulation.

FIG. 5 shows the C profile FIG. 2 in the installed state. It can easily be seen that the C-profile 1 'is covered on both sides with plates, preferably gypsum plasterboards 10, 10', 10 ", to form a dividing wall 12. The gypsum plasterboards 10, 10 ', 10" lie on the leg sections 2 of FIG C profile 1 'on. Because of the beads 8 ', this results in a reduced contact surface, since the leg sections 2 come into contact with the gypsum plasterboards 10, 10', 10 "only with the tips of the beads 8 ' Fastening means 11, which are presently designed as self-tapping screws, firmly connected to the leg portions 2 and braced against each other. The fastening means 11 can in each case be connected to the leg section 2 in the areas between the beads 8 '. In FIG. 5 below, it can also be seen that two plasterboard panels 10 ', 10 "abut one another in the region of the leg section 2 and are each connected to the leg section 2 by fastening means 11. In the area of the partition wall 12 lying between the plasterboard panels 10 and 10' and 10" In addition, an indicated insulation provided for insulation against sound and / or heat.

In the assembled state, the leg sections 2 of the C-profile are loaded and starting from the in FIG. 4 shown unloaded position elastically or possibly elastically and plastically deformed. In this case, the opening angle R, which amounts to more than 90 ° in the unloaded state of the C-profile 1 ', is reduced, whereby the leg sections 2 are aligned parallel to the plasterboard 10, 10', 10 " forces occurring during assembly a right-angled arrangement between leg portions 2 and the bottom portion of the third

The thickness of the sheet material of the C-profile 1,1 ', 1 "is in particular between 0.3 mm and 3 mm, whereby a thickness range of 0.4 mm to 0.6 mm has proven to be particularly advantageous it is preferably steel with an modulus between 196 kN / mm ² and 216 kN / mm ^2. The tensile strength of the sheet is between 270 MPa and 500 MPa.

FIGS. 6 and 7 show a further embodiment, which largely corresponds to those in FIG. 3 matches. Reference is therefore made to the above description, which for the FIGS. 6 and 7 applies accordingly. Parts of the same function are provided with the same reference numerals. In the in the FIGS. 6 and 7 However, in the illustrated embodiment, only one extending in the longitudinal direction of the C-profile groove 4 is provided in the bottom portion 3, which is formed wider than that in FIG. 3 shown grooves. Well recognizable in FIG. 7 also the more than 90 ° amount opening angle R between the leg portions 2 and the bottom portion. 3

LIST OF REFERENCE NUMBERS

1, 1 ', 1 "

C-section

2

leg portion

3

bottom section

4

groove

5

inside

6

outer ends

7

inner ends

8, 8 ', 8 "

beading

9

folding section

10, 10 ', 10 "

Plasterboard

11

fastener

12

partition wall

R

opening angle

Claims (11)

1. Partition comprising a C-shaped profile (1, 1', 1") of sheet metal which is clad with boards (10, 10', 10"), wherein the C-shaped profile has two leg portions (2) and a base portion (3) connecting the leg portions (2), wherein prior to assembly in the unstressed state of the C-shaped profile (1, 1', 1") at least one of the leg portions (2) together with the base portion (3) encloses an opening angle (R) greater than or equal to 91 °, characterised in that in the assembled state the leg portions (2) and the base portion (3) are deformed relative to one another elastically, or elastically and plastically, such that the leg portions (2) are oriented at right angles to the base portion (3) and being elastically deformed abut against the boards (10, 10', 10") under pretension.
2. Partition according to claim 1, characterised in that before assembly in the unstressed state of the C-shaped profile (1, 1', 1") the opening angle (R) between the at least one of the leg portions (2) and the base portion (3) is greater than or equal to 92°.
3. Partition according to claim 1 or claim 2, characterised in that before assembly in the unstressed state of the C-shaped profile (1, 1', 1") the opening angle (R) between the at least one of the leg portions (2) and the base portion (3) is less than or equal to 95°, in particular less than or equal to 94°.
4. Partition according to any one of claims 1 to 3, characterised in that before assembly in the unstressed state of the C-shaped profile (1, 1', 1") the opening angle (R) between the at least one of the leg portions (2) and the base portion (3) is between 92.5° and 93.5°, in particular 93°.
5. Partition according to any one of claims 1 to 4, characterised in that before assembly in the unstressed state of the C-shaped profile (1, 1', 1") the two leg portions (2) are not arranged parallel to one another and that they enclose with one another an angle between 2° and 10°, in particular between 4° and 8°.
6. Partition according to any one of claims 1 to 5, characterised in that the leg portions (2) and the base portion (3) are made of an integral sheet metal part.
7. Partition according to any one of claims 1 to 6, characterised in that at least one of the leg portions (2) has beadings (8, 8', 8") which project outwards in particular.
8. Partition according to any one of claims 1 to 7, characterised in that the beadings (8, 8', 8") are aligned in the longitudinal direction of the C-shaped profile (1, 1', 1") and extend across the entire length of the C-shaped profile (1, 1', 1") in particular.
9. Partition according to any one of claims 1 to 8, characterised in that the sheet metal of the C-shaped profile (1, 1', 1") has a knurling on at least one portion of its surface.
10. Partition according to any one of claims 1 to 9, characterised in that the thickness of the sheet metal is between 0.3 mm and 3 mm, in particular 0.4 mm to 0.6 mm.
11. Method of assembling a partition comprising a C-shaped profile (1, 1', 1") of sheet metal, wherein the C-shaped profile has two leg portions (2) and a base portion (3) connecting the leg portions (2), wherein before assembly in the unstressed state of the C-shaped profile (1, 1', 1") at least one of the leg portions (2) with the base portion (3) encloses an opening angle (R) greater than or equal to 91°, wherein the C-shaped profile (1, 1', 1") is clad with boards (10, 10', 10"), characterised in that in the assembled state the leg portions (2) and the base portion (3) are elastically or elastically and plastically deformed relative to one another such that the leg portions (2) are aligned at right angles to the base portion (3).

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