DRYWALL STUD AND DRYWALL WALL WITH A DRYWALL STUD
Patent Information
- Authority / Receiving Office
- MX · MX
- Patent Type
- Patents
- Current Assignee / Owner
- KNAUF GIPS KG
- Filing Date
- 2022-11-18
- Publication Date
- 2026-05-19
AI Technical Summary
Existing dry construction studs do not effectively enhance the acoustic insulation properties of dry construction walls without requiring additional costly measures.
A dry construction stud design with a specific web and flange configuration, including a web flange located centrally and oblique transition regions, enhances acoustic insulation by absorbing sound while maintaining structural stability and ease of handling.
The stud design significantly improves acoustic reduction rates in dry construction walls, achieving a 3 dB increase in sound insulation compared to conventional designs, particularly above 100 Hz, without altering the wall structure.
Smart Images
Figure MX433793B0 
Figure MX433793B1
Abstract
Description
DRYWALL STUD AND DRYWALL WALL WITH A DRYWALL STUD FIELD OF INVENTION The invention relates to a drywall stud having a web and first and second flanges connected to the web, wherein flange flanges are provided on at least one of the flanges, wherein each flange flange extends in the longitudinal direction of the stud by a flange flange length that is less than the total length of the stud, and wherein the flange flanges are center-to-center distance from each other. The invention further relates to a drywall wall with said drywall stud. BACKGROUND OF THE INVENTION Drywall construction refers to the manufacturing of building elements, particularly drywall walls, by assembling industrially manufactured semi-finished products. Typically, drywall walls are created by assembling a support structure of studs, to which panels are attached. To achieve a smooth surface, the joints are usually filled. Drywall studs made of sheet metal are often used for the support structure. These are easy to handle due to their light weight. Furthermore, they allow for the construction of stable drywall walls with good sound insulation. Drywall walls can be used in buildings, where they are constructed after the building's framework has been erected.Drywalls created in dry construction can also be used for exterior walls and load-bearing building components, if suitable materials are used. EP 1 866 492 A1 describes a known dry construction stud, designed as a C-stud. In the known stud, the flange flanges point outwards. Additionally, two narrow flanges are provided on the web, each located on an edge portion. Documents EP 1 375 769 A2 and EP 2 015 879 A1 describe other C-shaped studs for dry construction and the dry construction walls produced with them. BRIEF DESCRIPTION OF THE INVENTION The invention aims to specify a dry construction stud, which allows for a simple improvement of the sound insulation properties of plasterboard. The objective is achieved by the features of claim 1. Accordingly, in the case of the aforementioned dry construction stud, the web is provided to have a first web section, which forms a web edge portion and merges with a connecting section of the first folded flange connecting the first flange to the web, and the web to have a second web section, which forms an additional web edge portion and merges with a connecting section of the second folded flange connecting the second web section to the second flange, wherein the web has a web flange located between the first web section and the second web section. The claimed design allows for a significant improvement in the acoustic properties of LZQfr ίη / ZZOZ / E / YILI is a dry-wall construction made with dry-wall studs. In particular, the sound reduction index of a dry-wall serving as a partition between two rooms is improved. An improvement is also achieved if the plasterboard forms a facing at the front of a wall. This can be achieved without costly additional measures, simply through the optimized shape of the dry-wall stud. This allows the advantageous acoustic properties to be achieved without having to modify the structure of the dry-wall construction. Rather, the dry-wall stud can be used in the same way as previously known dry-wall studs. The dry-wall stud is also characterized by the fact that it is easy and safe to work with. Finally, the dry-wall stud is stable.It is understood that the claimed arrangement of the flange edges, together with the claimed arrangement of the first and second web sections, as well as the web flange, are responsible for the improved acoustic properties. In this context, the way in which the described design increases stiffness in different sections of the drywall stud in specific directions also plays a role, such that, on the one hand, the stud is sufficiently stable to readily absorb the forces generated in a plasterboard wall. On the other hand, the stiffness is deliberately reduced in certain sections or in certain directions, thus counteracting sound transmission in a drywall wall. The invention also relates to a drywall comprising at least one drywall stud of the type described and paneling attached thereto. The paneling may include drywall boards, with plasterboard, gypsum board, and fiber cement board being particularly preferred. The following description of embodiments according to the figures reveals additional objectives, features, advantages, and application possibilities of this invention. All the features described and / or represented, individually or in any meaningful combination, constitute the object of the invention, also independently of the summary in the individual claims or their preceding references. BRIEF DESCRIPTION OF THE FIGURES The figures, as well as the corresponding description, contain illustrative and non-exhaustive information on possible embodiments of the invention. The figures show: Fig. 1 a perspective representation of a dry construction upright according to the invention; Fig. 2 an enlarged representation of a section of the dry construction stud of Fig. 1; Fig. 3 a cross section through the dry construction stud of Fig. 1; Fig. 4a an additional dry construction upright according to the invention; Fig. 4b an enlarged representation of a section of the dry construction stud of the LZQfr ίη / ΖΖΩΖ / Ε / ΥΙΛΙ Fig. 4a; Fig. 5 a cross-section through the section of a plasterboard with dry construction studs of Fig. 1; Fig. 6 The sound insulation properties of a partition wall constructed with a dry construction stud according to the invention compared to a dry construction stud with a different design. DETAILED DESCRIPTION OF THE INVENTION Advantageous embodiments of the invention are described below. The additional features contribute in particular to further improving the acoustic properties of the drywall stud. Furthermore, they are also relevant for the simple and safe handling of drywall studs and for achieving high stability at a low cost. According to the invention, it is preferable that the web flange be located in the center of the web. Preferably, the web has only one web flange. An advantageous embodiment of the invention provides that the first and second web sections have the same width. According to the invention, it is preferred that the first and second web sections have a width of between 8 mm and 15 mm (preferably between 9 mm and 11 mm). It is also preferred that the web flange have a width greater than the width of either the first or second web section. An advantageous embodiment of the invention provides that the web flange projects in a direction towards the interior of the stile. "Inside" refers to the space between the first and second flanges of the stile. An advantageous embodiment of the invention provides that the first and second web sections are in the foreground and a central region of the web flange is in the background. Preferably, the aforementioned central region may be straight. An advantageous embodiment of the invention provides that the stud is a metal stud. The metal stud may be made of steel, preferably galvanized steel. The metal stud may preferably be manufactured by forming a metal profile from a flat sheet of metal. Accordingly, the metal stud comprises a profiled metal body, but may also contain other materials. In particular, the metal stud may contain cladding and / or additional elements. An advantageous embodiment of the invention provides that the web flange has a web flange height between 1 and 5 times the thickness of the metal stud material. Preferably, the web flange height is between 2 and 4 times the thickness of the metal stud material. The web flange height can be determined with respect to the inside of the first and second web sections. An advantageous embodiment of the invention provides that the web flange has a central region, as well as a first transition region to the first web section and a second transition region to the second web section, wherein each of the first and second transition regions has an oblique section, which is at an angle of between 30° and 75° with respect to the central region. The oblique section preferably has a straight cross-sectional surface. LZQfe ίη / ΖΖΠΖ / Ε / ΥΙΛΙ An advantageous embodiment of the invention provides that each of the first and second transition regions has a first radius and a second radius, where the oblique section is located between the first and second radii. An advantageous embodiment of the invention provides that the web flange extends continuously in the longitudinal direction of the upright along its entire length. An advantageous embodiment of the invention provides that each of the connecting sections of the first and second folded flanges has a radius of curvature of between 1 mm and 3 mm. The radius of curvature can be determined within the respective connecting section of the folded flange. An advantageous embodiment of the invention provides that the flange edges project inward toward the stud. Therefore, the flange edges project inward toward the drywall stud. More preferably, all the flange edges project inward toward the stud. An advantageous embodiment of the invention provides that all the flange edges of a flange lie along a single straight line. Preferably, this single straight line is oriented parallel to the longitudinal direction of the strut. Alternatively, the flange edges of a flange may be located along two, three, or more lines, which are preferably parallel to each other. These two, three, or more straight lines may be oriented parallel to the longitudinal direction of the stile. An advantageous embodiment of the invention provides that the lash flanges are located in a central area of the lash. The central area may be a section of the lash that extends parallel to the longitudinal direction of the strut and is equidistant from a proximal and distal end of the lash. Preferably, the lash flanges are located in the center of the lash. An advantageous embodiment of the invention provides that the flange edges have a flange height that is between 0.5 and 2 times (preferably between 0.75 and 1.5 times) the thickness of the stud material. The flange height can be determined with respect to the inside of the respective flange. An advantageous embodiment of the invention provides that the distances between centers of adjacent flange edges of a flange are between 100 mm and 250 mm. According to the invention, the preferred flange length is between 40 mm and 70 mm. Preferably, all flanges are shaped in this way. According to a preferred embodiment, the spacing between adjacent flange edges of a flange is between 30 mm and 210 mm. A spacing between 100 mm and 150 mm is preferred. It is also preferred that the spacing between adjacent flange edges of a flange be uniform. According to an advantageous embodiment of the invention, the flange lengths of at least 50% (preferably at least 70%, 80% or 90%) of the flanges are equal. An advantageous embodiment of the invention provides that the flange edges are semicircular or triangular edges. LZQfr Ln / Zznz / E / YIAI An advantageous embodiment of the invention is that the flange edges have a flange width of between 2 mm and 4 mm. An advantageous embodiment of the invention is that the flange edges have a flange height that is less than the web flange height. An advantageous embodiment of the invention provides that the upright has knurling in the web area and / or in the area of the first flanges and / or in the area of the second flanges. Preferably, at least 40% (more preferably at least 60% or at least 80%) of the surface of the sheet material is knurled. The knurling comprises a large number of local plastic deformations. This, together with the other features, contributes to a further improvement in acoustic properties and good handling. An advantageous embodiment of the invention provides that the web width is between 30 mm and 300 mm, and preferably between 48 mm and 200 mm. An advantageous embodiment of the invention provides that the width of the tabs is between 30 mm and 60 mm, preferably between 47 mm and 49 mm. An advantageous embodiment of the invention provides that the thickness of the upright material is between 0.4 mm and 1 mm, preferably between 0.5 mm and 0.8 mm. An advantageous embodiment of the invention provides that the first flange has a narrower flange width than the second flange, so that the drywall stud can be connected to an identical additional drywall stud to form a rectangular stud, wherein the first flange of the drywall stud rests on the inside of the second flange of the additional drywall stud. An advantageous embodiment of the invention provides that the first and second flanges meet at an opening angle (widening outwards) of between 1° and 6° (preferably between 3° and 4°) with each other. This allows the angle between the first flange and the web to be between 90.5° and 93° (preferably between 91.5° and 92°). This refers to the drywall stud before assembly during plasterboard installation. Due to the forces generated during assembly, the first and second flanges may undergo elastic or elastic-plastic deformation. This can also further improve the acoustic properties. An advantageous embodiment of the invention provides that the strut is a C-shaped strut. It may exhibit a C-shaped cross-section perpendicular to a longitudinal direction of the strut. In the case of the C-shaped strut, the free-end sections of the first and second flanges may be folded inwards. Figures 1 to 3 show a first embodiment of a dry-construction stud that is not provided with knurling. Figures 4a and 4b show an identical dry-construction stud that is additionally provided with knurling. Therefore, where similarities exist, the embodiments are described together below. Each of Figs. 1 to 4b shows a drywall stud 1, which is a metal stud. The metal stud can be obtained by shaping a sheet of metal. The drywall stud 1 has a web 3 and first and second flanges 4, 5. The first and second LZQfr Ln / Zznz / E / YIAI tabs 4 and 5 are located on web 3. The first and second tabs 4 and 5, as well as web 3, are made of continuous sheet metal. During manufacturing, the originally flat sheet metal is bent to acquire the shape shown in Figs. 1 to 4b. The drywall stud 1 has several flanged edges 6 on each of the first and second flanges 4, 5. The flanged edges are aligned so that they project in a direction towards the interior of the stud. The interior of the stud is formed by the space between the first and second flanges 4, 5. Each of the tab 6 edges is located in a central region of the first and second tabs 4, 5. As shown, each of the flange 6 ridges extends in the longitudinal direction of the stile 1 by a flange length A, which is less than the total length B of the stile 1. All the oblong flange 6 ridges of a flange 4, 5 lie along a single straight line. The first and second flanges 4, 5 have no additional ridges other than the flange 6 ridges. The flange flanges have a flange flange height C, which is between 0.5 and 2 times the material thickness D of the metal stud. Figure 1 further shows that gaps form between the flange edges 6, where the center-to-center distance E is between 100 mm and 250 mm. The flange length A of the flange edges is between 40 mm and 70 mm. As shown in Fig. 3, the flange 6 edges can be shaped as semicircular or triangular edges. They have a flange width F of between 2 mm and 4 mm. Figures 1 to 4b further show that web 3 has a first web section 7 and a second web section 8, between which is the web flange 9. The first web section 7 forms an edge portion 10 of web 3 and merges with a connecting section of the first folded flange 11, which connects the first flange 4 to web 3. The second web section 8 forms an additional edge portion 12 of web 3 and merges with a connecting section of the second folded flange 13, which connects the second web section 8 to the second flange 5. The web flange 9 extends in the longitudinal direction of the upright 1 along its entire length B. As shown, the web flange 9 is located in the center of web 3. In the illustrative embodiment shown, each of the first and second web sections 7, 8 has a width G of between 8 mm and 15 mm. The web flange 9 is oriented towards the inside of the dry construction stud 1. The first and second web sections 7, 8 are in one plane, while the central region of the web flange 9 is in a second plane offset from the first plane. The web flange 9 has a web flange height H, which is between 1 and 5 times the material thickness D of the metal stud. The web flange 9 has a central region 14, as well as a first transition region 15 to the first web section 7 and a second transition region 16 to the second web section 8. Each of the first and second transition regions 15, 16 has an oblique section 17, which is at an angle of between 30° and 75° with respect to the central region 14. LZQfr Ln / Zznz / E / YIAI Fig. 3 further shows that each of the first and second transition regions 15, 16 has a first and second radius 50, 51, where the oblique section 17 lies between the first and second radii 50, 51. The dry construction stud 1 shown is shaped like a C-stud. The free end sections 30 of the first and second flange 4, 5 are folded inwards along the entire length of stud 1. The width K of the web 3 can be, in particular, between 50 mm and 300 mm. The width L of the flanges 4, 5 can be, in particular, between 30 mm and 60 mm. The thickness D of the metal upright material can be, in particular, between 0.4 mm and 1 mm. Figure 3 also shows that the first and second flanges 4, 5 are not parallel, but can have an opening angle (widening outwards) of between 1° and 6° relative to each other. Therefore, the angle M between the first or second flange 4, 5 and the web 3 is between 90.5° and 93°. This data refers to the condition of the dry construction stud 1 before installation. While Figures 1 to 3 show the dry-construction stud 1 without knurling, Figures 4a and 4b illustrate the design of the dry-construction stud 1 with knurling. In this case, the knurling is provided over the entire surface area of the web 3, as well as on the first and second flanges 4, 5. The knurling involves a large number of local plastic deformations of the sheet metal. Figure 5 shows a horizontal cross-section of a drywall wall. Two of the drywall studs 1, which form the vertical elements of the drywall wall, are shown. In the embodiment shown, a paneling 18 is located on either side of the drywall studs 1. The paneling 18 has two layers. The paneling 18 comprises panels 19, which are fastened with fasteners 20 at the first and second flanges 4, 5. In particular, the fasteners 20 can be screws driven through the panels 19 at the first or second flange 4, 5. However, other fasteners commonly used in drywall construction can also be used. Figure 5 also shows that the first and second tabs 4, 5 are not initially parallel, but are at an angle to each other. When the fasteners are tightened, the first and second tabs 4, 5 may undergo elastic (or elastic and plastic) deformation relative to the web 3 so that they become parallel to each other in the assembled state. Fig. 6 shows measurement results that illustrate the improvement in sound insulation properties as a result of a dry construction stud according to the invention. The measurement results refer to the following wall construction: the drywall is designed as a metal stud wall. In each case, a knurled drywall C-stud with a web width K of 75 mm and a flange width L of 50 mm is used, as with the metal studs. The material thickness D is 0.6 mm. The drywall studs are spaced 625 mm apart. The wall is paneled on both sides with two layers of 12.5 mm gypsum board according to DIN 18180. The cavity is filled with 60 mm of mineral wool. LZQfr ίη / ΖΖΩΖ / Ε / ΥΙΛΙ Fig. 6 represents the acoustic reduction index R determined as a function of the frequency f in Hz. Figure 6 shows, on the one hand, the measurement results for a drywall wall constructed with a stud as shown in Figure 4a. The corresponding measurement results are represented by the measurement curve with circles. In comparison, data are shown for a drywall wall with an identical structure, but using a drywall stud with a different stud geometry. In the case of the different geometry, the flange is formed continuously along the entire length of the drywall stud, while the web is formed as shown in Figure 4a. The corresponding measurement results are represented by the measurement curve with triangles. The measurement results, for which the sound reduction index R was determined according to DIN EN ISO 10140-2 (Part 2: Measurement of airborne sound insulation), show a clear improvement in the sound reduction index, particularly above 100 Hz. The sound reduction index R in dB for the geometry according to the invention in the range of 100 Hz to 2000 Hz is significantly higher than the values achieved with the reference product. The weighted sound reduction index RW is 55.3 dB for the design according to the invention, while the RW value for the reference product is 50.7 dB. This is significant, especially since, mathematically, an increase of 3 dB corresponds to a doubling of the sound level.RW indicates the weighted airborne sound reduction index and was determined from the frequency-dependent sound reduction index R according to DIN EN ISO 717-1 (Part 1: Airborne sound insulation). Where standards are referenced, the information refers to the version in force as of December 1, 2019, in each case.
Claims
1. A dry construction stud characterized in that it comprises a web (3) and first and second flanges (4, 5) connected to the web (3), wherein flange flanges (6) are provided on at least one of the flanges (4, 5), wherein each of the flange flanges (6) extends in the longitudinal direction of the stud (1) by a flange length (A), which is less than a total length (B) of the stud (1), wherein the web (3) has a first web section (7), which forms an edge portion (10) of the web (3) and merges with a connecting section of the first folded flange (11) connecting the first flange (4) to the web (3), and in that the web (3) has a second web section (8), which forms an additional edge portion (12) of the web (3) and merges with a connecting section of the second folded flange (13), which connects the second web section (8) to the second flange (5),where the web (3) has a web flange (9) located between the first and second web sections (7, 8).
2. The dry construction stud according to claim 1, further characterized in that the web flange (9) is located in the center of the web (3).
3. The dry construction stud according to claim 1 or 2, further characterized in that the web flange (9) and / or the flange flanges (6) protrude in a direction towards the interior of the stud (1).
4. The dry construction stud according to any of claims 1 to 3, further characterized in that the web flange (9) has a web flange height (H), which is between 1 and 5 times the thickness of the stud material (D) (1).
5. The dry construction stud according to any of claims 1 to 4, further characterized in that the web flange (9) has a central region (14), as well as a first transition region (15) to the first web section (7) and a second transition region (16) to the second web section (8), wherein each of the first and second transition regions (15, 16) has an oblique section (17), which is at an angle of between 30° and 75° with respect to the central region (14).
6. The dry construction upright according to claim 5, further characterized in that each of the first and second transition region (15, 16) has a first radius (50) and a second radius (51), wherein the oblique section (17) is located between the first and second radii (50, 51).
7. The dry construction stud according to any of claims 1 to 6, further characterized in that each of the connection sections of the first and second bent flange (11, 13) has a radius of curvature of between 1 mm and 3 mm.
8. The dry construction stud according to any of claims 1 to 7, further characterized in that the flange edges (6) have a flange edge height (C) which is between 0.5 and 2 times the thickness of the stud material (D). LZQfr ίη / ZZOZ / E / YILI 9. The dry construction stud according to any of claims 1 to 8, further characterized in that the center-to-center distance (E) of adjacent flange flanges (6) is between 100 mm and 250 mm.
10. The dry construction stud according to any of claims 1 to 9, further characterized in that the flange edges (6) have a flange edge width (F), which is between 2 mm and 4 mm.
11. The dry construction stud according to any of claims 1 to 10, further characterized in that the stud (1) has knurling in the web area (3) and / or in the flange area (4, 5).
12. The dry construction stud according to any of claims 1 to 11, further characterized in that the width (K) of the web (3) is between 30 mm and 300 mm and / or in that the width (L) of the flanges (4, 5) is between 30 mm and 60 mm.
13. The dry construction stud according to any of claims 1 to 12, further characterized in that the first and second flanges (4, 5) meet each other at an opening angle of between 1° and 6°.
14. The dry construction upright according to any of claims 1 to 13, further characterized in that it is a C-shaped upright.
15. A dry construction wall characterized in that it comprises at least one dry construction stud in accordance with one of the preceding patent claims and a panel (18) attached thereto.