AU2006230983B2

AU2006230983B2 - C-shaped profile and partition comprising a C-shaped profile

Info

Publication number: AU2006230983B2
Application number: AU2006230983A
Authority: AU
Inventors: Alfons Jean Knauf
Original assignee: Richter System GmbH and Co KG
Current assignee: Richter System GmbH and Co KG
Priority date: 2005-04-07
Filing date: 2006-02-15
Publication date: 2011-05-12
Anticipated expiration: 2026-02-15
Also published as: RU2005124564A; EP1866492A1; RU2317378C2; AU2006230983A1; EP1866492B1; PT1866492T; CN101151423A; US20090038255A1; ES2692201T3; WO2006105825A1; NO20075672L; PL1866492T3; DE102005016176A1; TR201814732T4

Description

C WNRPort1\CC\AK W3543986_1 DOC-21103/2011 C-SHAPED PROFILE AND PARTITION COMPRISING A C-SHAPED PROFILE 100011 The present invention relates to a C-shaped sheet metal profile for partitions that are planked on both sides, having two leg sections and one bottom section connecting the 5 two leg sections. 100021 C-shaped profiles of this type are known from DE 100 13 991 Cl, for example. They are regularly used in interior construction for producing dry construction walls. In the case of the previously known C-shaped profiles, the leg sections are perpendicular to 10 the bottom section. 100031 Although effective sound insulation can now be achieved for dry construction walls produced using such previously known C-shaped profiles, it is desirable to further improve the sound-insulating properties. The manufacturing costs should not be increased or only 15 minimally increased in this process. 100041 Therefore, the present invention seeks to further refine a C-shaped profile of the type recited at the outset so that the sound-insulating properties are improved with minimal additional costs. 20 100051 According to one example form there is provided a C-shaped profile where at least one of the leg sections together with the bottom section forms an opening angle greater than 90 in the unloaded state of the C-shaped profile. 25 100061 As a result of this configuration in which at least one and preferably both leg sections point slightly outward in the unloaded state of the C-shaped profile, the noise protection properties are significantly improved. When the C-shaped profile is planked during installation using gypsum plasterboard or the like, the C-shaped profile being deformed and the opening angle between the leg section and bottom section being reduced 30 again by the resulting forces. Nonetheless, better sound-insulating properties are achieved for the finished partition compared to conventional C-shaped profiles. In the case of the configuration of the present invention, it is advantageous that the sound insulation is improved without additional elements so that no or only minimal additional costs are incurred when manufacturing the C-shaped profile or assembling the partition. [0007] According to the present invention, it is advantageous when the opening angle between at least one leg section and the bottom section in the unloaded state of the C-shaped profile is greater than or equal to 91 , in particular greater than or equal to 920. 100081 A further improvement is achieved when the opening angle between at least one leg section and the bottom section in the unloaded state of the C-shaped profile is less than or equal to 950, in particular less than or equal to 940. [00091 In a particularly advantageous manner, the opening angle between at least one leg section and the bottom section in the unloaded state of the C-shaped profile is between 92.50 and 93.5' and is 930 in particular. [00101 According to the present invention, it may also be provided that the two leg sections in the unloaded state of the C-shaped profile are not situated parallel to one another and form an angle between 20 and 100, in particular between 40 and 8'. In this context, the distance between the ends of the leg sections away from the bottom section is greater than the distance between the ends of the leg sections facing the bottom section. [00111 Manufacture is particularly simple when the leg sections and the bottom section are made from a single piece of sheet metal. 100121 It also proved to be advantageous for the leg sections and the bottom section to be elastically or elastically and plastically deformable with respect to one another so that the leg sections in the installed state are perpendicular to the bottom section. This results in the leg sections in the installed state resting against the planking pre-stressed and in an elastically deformed manner. 2 C NRPrtb1\CC\AKW\3543%6_1DOC-21/3/20tl -3 100131 A further improvement of the sound protection is achieved in that at least one of the leg sections has beads protruding outward in particular. The combination of the beads and the opening angle which is enlarged according to the present invention in the unloaded state results in particularly effective sound-insulating properties. 5 [00141 It is advantageous for the beads to run in the longitudinal direction of the C-shaped profile and to extend over the entire length of the C-shaped profile in particular. 100151 According to a particularly advantageous embodiment of the present invention, at 10 least part of the surface of the C-shaped profile has knurling. The knurling results in local, in particular punctiform, deformations in the sheet metal. In this context a large number of deformations may be provided per unit area, e.g., more than 5 deformations per cm 2 or 2 more than 10 deformations per cm 15 100161 According to the present invention, the thickness of the sheet metal may be between 0.3 mm and 3 mm, in particular 0.4 mm to 0.6 mm. 10017] The present invention also relates to a partition produced with the previously described C-shaped profile. 20 [00181 Additional aspects, features, advantages and possible applications of the present invention result from the following description of exemplary embodiments on the basis of the drawings, all described and/or depicted features alone or in any combination form the aspects, features, advantages and possible applications of the invention regardless of their 25 combination in the individual claims or their reference. 10019] The figures show: [00201 Figure 1 shows a perspective view of a C-shaped profile according to the present 30 invention; 100211 Figure 2 shows a perspective view of a further specific embodiment of the C-shaped profile according to the present invention; 100221 Figure 3 shows a perspective view of another specific embodiment of the C-shaped profile according to the present invention; 100231 Figure 4 shows a cross section of the profile shown in Figure 2; [00241 Figure 5 shows a cross section of the C-shaped profile shown in Figure 2 installed in a partition; 100251 Figure 6 shows a perspective view of another specific embodiment of the C-shaped profile according to the present invention; and [00261 Figure 7 shows a cross section of the C-shaped profile shown in Figure 6 installed in a partition. 100271 The figures show various embodiments of a C-shaped profile 1, ', I" made of sheet metal for partitions planked on both sides. Each C-shaped profile 1, 1', 1" has two leg sections 2 as well as a bottom section 3. 100281 Bottom section 3 is essentially flat. In the specific embodiments shown in Figures I through 3, a groove 4 extending in the longitudinal direction of C-shaped profile 1, I', l" is provided in the outer region on both sides of bottom section 3. Bottom section 3 may have openings, cutouts, or punch-outs (not shown). C-shaped profile 1, 1', 1" has an oblong shape in this context. This also applies to bottom section 3. In addition, in a variation, bottom section 3 may also be shaped. 100291 One leg section 2 is provided on each longitudinal side of bottom section 3. As shown in Figure 4 in particular, leg sections 2 and bottom section 3 in the unloaded state of C-shaped profile 1, 1', 1" form an opening angle R greater than 900. Opening angle R between inside 5 of 4 bottom section 3 facing leg sections 2 and leg sections 2 is preferably between 910 and 950, ranges between 920 and 940 and in particular between 92.50 and 93.50 having proved to be particularly advantageous. According to a preferred specific embodiment, opening angle R is 93*. This configuration results in leg sections 2 being slightly tilted outward or open starting from their point of connection to bottom section 3. [00301 As shown, leg sections 2 in the unloaded state of the C-shaped profile are not parallel but instead are at an angle to one another. They form an angle between 20 and 10*, in particular between 40 and 80. The distance between ends 6 of leg sections 2 away from bottom section 3 is greater than the distance between ends 7 of leg sections 2 facing bottom section 3. Each of the two leg sections 2 of a C-shaped profile 1, 1', 1" together with bottom section 3 forms an identical opening angle R greater than 900 as described above. [00311 C-shaped profile I is formed as one piece from sheet metal. The deformations of the sheet metal shown in the figures are made during manufacturing and in particular the leg sections are shaped as shown in the figures via bending and/or cold rolling of the sheet metal. In this context in the finished component leg sections 2 and bottom section 3 are either elastically or elastically and plastically deformable relative to one another in such a way that the leg sections in the installed state may be situated perpendicular to the bottom section. [00321 In the shown specific embodiments, each leg section 2 has beads 8, 8', 8" extending in the longitudinal direction of C-shaped profile 1, 1', 1". These are produced by plastic deformations of the sheet metal in the region of leg sections 2. Three parallel beads 8 extending in the longitudinal direction and pointing inward are provided in the embodiment shown in Figure 1. Accordingly groove-shaped or trough-shaped recesses result in the otherwise flat surface of leg sections 2. In the embodiments shown in Figures 2 and 3, four parallel beads 8', 8" that extend in the longitudinal direction of the C-shaped profile and point outward are provided on each leg section 2. The top regions] of beads 8', 8" jointly form support surfaces in the form of lines or bands for the planking on a common plane. The number of beads 8, 8', 8" may be varied according to the particular requirements. 5 [00331 An inward facing folded section 9 is also provided on the outer ends of leg sections 6. [00341 In the embodiments shown in Figure 3, the surface of the sheet metal of C-shaped profile I has knurling. This results in a plurality of local, in particular punctiform, deformations of the sheet metal that increase its rigidity in particular. In addition, the combination of beaded leg sections 2 and/or knurling together with leg sections 2 that are slightly outwardly open when C-shaped profile I is in the unloaded state has a positive effect on the noise transmission properties by providing improved sound insulation. [0035] Figure 5 shows the C-shaped profile from Figure 2 in the installed state. It is clearly visible that C-shaped profile I' is planked on both sides with boards, preferably gypsum plasterboards 10, 10', 10", to form a partition 12. Gypsum plasterboards 10, 10', 10" abut leg sections 2 of C-shaped profile 1'. Beads 8' result in a reduced contact surface since only the tips of beads 8' on leg sections 2 contact gypsum plasterboard 10, 10', 10". In this context gypsum plasterboards 10, 10', 10" are fixedly connected to leg sections 2 and braced with respect to one another via fastening means 1 I designed in the present invention as self-tapping screws. Fastening means I I may be connected to leg section 2 in the regions between beads 8'. The lower portion of Figure 5 shows that two gypsum plasterboards 10', 10" in the region of leg section 2 abut one another and are connected to leg section 2 via fastening means 11. An indicated insulating material for insulating against sound and/or heat is provided in the region between gypsum plasterboards 10 and 10' and 10" of partition 12. [00361 Leg sections 2 of the C-shaped profile are loaded in the installed state and are elastically or elastically and plastically deformed, starting from the unloaded position shown in Figure 4. In this context, opening angle R which is greater than 900 in the unloaded state of C-shaped profile I' is reduced, leg sections 2 being aligned parallel to gypsum plasterboards 10, 10', 10". After installation, the forces occurring during installation typically result in a perpendicular configuration between leg sections 2 and bottom section 3. 100371 The thickness of the sheet metal of C-shaped profile 1, ', 1" is between 0.3 mm and 3 mm in particular. A thickness range between 0.4 mm and 0.6 mm has proven to be particularly 6 C\NRPotblDCC\V\5439861 DOC-2103/2011 -7 advantageous. The sheet metal is preferably steel with an elastic modulus between 196 kN/mm 2 and 216 kN/mm 2 . The tensile strength of the sheet metal is between 270 MPa and 500 MPa. 5 100381 Figures 6 and 7 show a further embodiment that essentially corresponds to that in Figure 3. Therefore, reference is made to the above description that applies accordingly to Figures 6 and 7. Parts having the same function are provided with the same reference numerals. However, in the embodiment in Figure 6 and 7, only one groove 4 that extends in the longitudinal direction of the C-shaped profile and is wider than the grooves in Figure 10 3 is provided in bottom section 3. Figure 7 also clearly shows opening angle R between leg sections 2 and bottom section 3 that is greater than 90*. [00391 Throughout this specification and the claims which follow, unless the context requires otherwise, the word "comprise", and variations such as "comprises" or 15 "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps. [00401 The reference in this specification to any prior publication (or information derived 20 from it), or to any matter which is known, is not, and should not be taken as, an acknowledgement or admission or any form of suggestion that that prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates. 25 100411 Whilst the present invention has been hereinbefore described with reference to a particular embodiment, it will be understood that numerous variations and modifications will be envisaged by persons skilled in art. All such variations and modifications should be considered to fall within the scope of the invention as broadly hereinbefore described and as hereinafter claimed.

List of reference numerals 1, 1', 1" C-shaped profile 2 Leg section 3 Bottom section 4 Groove 5 Inside 6 Outer ends 7 Interior ends 8, 8', 8" Beads 9 Folded section 10, 10', 10" Gypsum plasterboards II Fastening means 12 Partition R Opening angle 8

Claims

1. A C-shaped sheet metal profile for partitions that are planked on both sides, comprising two leg sections and a bottom section that interconnects the leg sections, 5 wherein at least one of the leg sections encloses an opening angle greater than 900 with the bottom section in the unstressed state of the C-shaped profile, wherein the leg sections and the bottom section are elastically or elastically and plastically deformable relative to one another such that in the mounted state the leg sections are aligned at right angles to the bottom section. 10

2. The C-shaped profile as recited in Claim 1, wherein the opening angle between the at least one leg section and the bottom section is greater than or equal to 910, in particular is greater than or equal to 92* in the unloaded state of the C-shaped profile. 15

3. The C-shaped profile as recited in Claim 1 or 2, wherein the opening angle between the at least one leg section and the bottom section is less than or equal to 95*, in particular is less than or equal to 940, in the unloaded state of the C-shaped profile. 20

4. The C-shaped profile as recited in any one of Claims 1 to 3, wherein the opening angle between the at least one leg section and the bottom section is between 92.50 and 93.5', in particular 930, in the unloaded state of the C-shaped profile. 25

5. The C-shaped profile as recited in any one of Claims 1 to 4, wherein the two leg sections are not parallel with respect to one another and form an angle between 20 and 100, in particular between 40 and 8*, in the unloaded state of the C-shaped profile. 30

6. The C-shaped profile as recited in any one of Claims 1 to 5, wherein the leg sections and the bottom section are made from a single piece of sheet C \NRPrbDCC KW43986_1 DOC-22A01/2011 - 10 metal.

7. The C-shaped profile as recited in any one of Claims I to 6, wherein at least one of the leg sections has beads that project outward. 5

8. The C-shaped profile as recited in any one of Claims 1 to 7, wherein the beads run in the longitudinal direction of the C-shaped profile and extend over the entire length of the C-shaped profile. 10

9. The C-shaped profile as recited in any one of Claims I to 8, wherein the sheet metal of the C-shaped profile has knurling on at least a part of its surface.

10. A partition comprising a C-shaped profile according to any one of the preceding 15 claims, wherein the leg sections and the bottom section are elastically or elastically and plastically deformed relative to one another such that in the mounted state the leg sections are aligned at right angles to the bottom section.

11. A C-shaped sheet metal profile, substantially as hereinbefore described with 20 reference to the accompanying figures.