WO2025031554A1

WO2025031554A1 - Dry construction system, dry construction wall and method for erecting a dry construction wall

Info

Publication number: WO2025031554A1
Application number: PCT/EP2023/025365
Authority: WO
Inventors: Jörg SÜLLWALD
Original assignee: Knauf Gips KG
Current assignee: Knauf Gips KG
Priority date: 2023-08-04
Filing date: 2023-08-04
Publication date: 2025-02-13
Anticipated expiration: 2026-02-04

Abstract

The invention relates to a dry construction system (41, 41', 41 ") comprising a mounting rail (3, 3') and a mounting element (1, 1', 1") for connecting a wall stud (2, 2', 2", 2''') to the mounting rail (3, 3'), wherein the mounting element (1, 1', 1") comprises a first connection part (4) for fastening to the wall stud (2, 2', 2", 2") and a second connection part (5) for fastening to the mounting rail (3, 3'), wherein the first connection part (4) and the second connection part (5) are connected and form an angle, wherein the second connection part (5) has a first guide section (6) for positioning the mounting element (1, 1', 1") on the mounting rail (3,3), wherein the mounting rail (3, 3') has a bottom (29) and two side walls spaced apart from each other, wherein the bottom (29) and the side walls are arranged at an angle to each other, wherein the side walls have at least one second guide section (27) for bearing against the first guide section (6), wherein the mounting rail (3, 3') has a mounting section (28) for connecting to the second connection part (5) of the mounting element (1, 1', 1"), wherein the second guide section (27) and the mounting section (28) delimit a receiving space for receiving the second connection part (5) of the mounting element (1, 1', 1"). The dry construction system is characterized in that the mounting rail (3, 3') has at least one bearing flange (31) which forms a bearing surface for the wall stud (2, 2', 2", 2"'). The invention further relates to a dry construction wall and a method for erecting a dry construction wall using such a dry construction system.

Description

Dry construction system, dry construction wall and method for erecting a dry construction wall

The present invention relates to a dry construction system comprising a mounting rail and a mounting element for connecting a wall stud to the mounting rail. The invention further relates to a dry construction wall comprising such a dry construction system and a wall stud, wherein the wall stud and the mounting rail are connected with the mounting element. The invention also relates to a method for erecting such a dry construction wall.

Dry construction structures regularly comprise wall studs to which wall components, such as planking in particular, are fastened. With a dry construction system mentioned at the beginning, it is possible to create dry construction walls where the wall studs are fastened with a mounting rail attached to the substrate. In principle, dry construction structures can be used, for example, for walls inside the building, such as partition walls between two rooms. However, it is also possible to make exterior walls of buildings by means of dry construction.

From EP 3 814 583 A1 , a connecting piece for the angular connection of two components for a dry construction structure or lightweight metal construction is known. The connecting piece comprises a base plate and a side wall placed perpendicular to the base plate, the side wall being u-shaped. The base plate can be connected with a stud frame and the side wall with a U-profile.

DE 202017002 584 I11 shows an arrangement for the angular connection of two components for a dry construction or lightweight metal construction in which two profile elements to be arranged at right angles to each other are to be connected. The arrangement comprises an angle piece having an angle back, an angle tab oriented at an angle thereto, and laterally delimiting angle cheeks. The angle back and the angle tab can be connected to components that are designed as profile elements.

A dry construction structure is known from US 2008 250738 A1. In this case, studs are arranged spaced apart in an upper and a lower rail. The studs are fixed on the upper and lower rails. In addition, a wall covering material, such as planking, is fastened to the studs to close the dry construction structure.

The present invention is based on the object of providing a dry construction system with a mounting rail and a mounting element for connecting a wall stud to the mounting rail, having improved handleability and mountability.

This object is solved by a dry construction system having the features of claim 1. The dry construction system comprises a mounting rail and a mounting element for connecting a wall stud to the mounting rail, wherein the mounting element comprises a first connection part for fastening to the wall stud and a second connection part for fastening to the mounting rail, wherein the first connection part and the second connection part are connected and form an angle, wherein the second connection part has a first guide section for positioning the mounting element on the mounting rail, wherein the mounting rail has a bottom and two side walls spaced apart from each other, wherein the bottom and the side walls are arranged at an angle to each other, wherein the side walls have at least one second guide section for bearing against the first guide section, wherein the mounting rail has a mounting section for connecting to the second connection part of the mounting element, wherein the second guide section and the mounting section delimit a receiving space for receiving the second connection part of the mounting element, wherein the mounting rail has at least one bearing flange which forms a bearing surface for the wall stud.

Such a dry construction system allows a quick and safe installation of a dry construction wall. In particular, the dry construction system is also suitable for the installation of exterior walls. For this purpose, the bottom of the mounting rail can be placed on a substrate, such as a building floor or building ceiling. In doing so, the mounting rail in particular represents a base profile for the connection to the solid body. This contributes to better handleability in the installation of a dry construction wall. The second connection part of the mounting element can be arranged in the receiving space of the mounting rail. The second connection part of the mounting element can preferably bear against the mounting section, wherein the mounting element and mounting rail can be formed, so that the side walls bear against the mounting element in a supporting manner. Assembly is then further simplified if the mounting element can be moved along a longitudinal axis of the mounting rail before the mounting element is fixed to the mounting rail. This makes it particularly easy to position the mounting element on the mounting rail during assembly. This way, the assembly can be accelerated and simplified. In addition, a high quality of construction can be achieved, avoiding faulty assembly. Another advantage is that the mounting rail and mounting element can be used to easily erect walls of different dimensions. When the mounting element is arranged on the mounting rail, the first and second guide sections can be arranged, so that they leave an assembly clearance between the first and second guide sections. This contributes to an easy assembly. In particular, the mounting section can have a flat bearing surface for bearing against the second connection part of the mounting element. In an advantageous manner, it can be provided that the mounting rail forms a support on its underside with which the mounting rail is arranged on a substrate. Another advantage of the dry construction system described is that it also enables the rapid creation of thermally insulating walls.

Advantageous embodiments and further developments of the present invention are described below. With these, the aforementioned benefits and effects can be further improved.

An advantageous embodiment of the invention provides that the first and/or the second connection part are plate-shaped. Preferably, the first and/or the second connection part are each flat. This also improves the stackability of multiple mounting elements, making them easier to transport for assembly and thus easier to handle.

Furthermore, it can be advantageously provided that the first connection part and/or the second connection part have four lateral edges that form a parallelogram. In particular, the first connection part and/or the second connection part can have a rectangular basic shape. In doing so, it can be provided that the corners are formed in a rounded manner, which also can reduce the risk of injury during assembly. Preferably, one of the lateral edges of each of the first and second connection parts is formed as a connection edge at which the first and second connection parts are connected to each other.

According to an advantageous embodiment of the present invention, it can be provided that the first guide section protrudes from the second connection part. In doing so, the first guide section can preferably be arranged on a lateral edge of the second connection part that runs perpendicular to the connection edge.

In a further embodiment of the present invention, it can be provided that the second connection part comprises a side face, wherein the side face of the second connection part forms the first guide section. Preferably, the side face of the second connection part is arranged laterally on the second connection part. The side face of the second connection part preferably extends from one of the four lateral edges. Particularly preferably, the side face of the second connection part extends from a lateral edge of the second connection part that runs perpendicular to the connection edge.

According to an advantageous embodiment of the present invention, it can be provided that the first connection part and the second connection part are arranged at a right angle to each other. This can be achieved by the first connection part and the second connection part each having a main extension plane, wherein the main extension planes are arranged at a right angle to each other. Preferably, the mounting element is formed as an L angle. This allows a right-angled connection to be achieved between the wall stud of a dry construction structure and the mounting rail. In particular, the mounting element can be formed as a corner angle.

In an advantageous manner, it can be provided that the first guide section is arranged on the second connection part, so that an opening angle results between the second connection part and the first guide section which is preferably greater than 40°, particularly preferably greater than 85°. The opening angle between the second connection part and the first guide section is preferably less than 140°, particularly preferably less than 95°. In particular, the opening angle between the second connection part and the first guide section can be 90°.

In a preferred manner, it can be provided that two first guide sections are arranged on the second connection part. Here, the first guide sections can be provided parallel to each other and spaced apart from each other. In doing so, the two first guide sections are preferably arranged on two lateral edges of the second connection part that run perpendicular to the connection edge. Preferably, the first guide sections are arranged on two opposite side faces of the second connection part. In case of protruding first guide sections, the second connection part and the two first guide sections can form a U-shape in cross-section at the second connection part.

According to the present invention, it can be provided that the first guide section or the first guide sections are arranged on a first side of the second connection part, wherein the first connection part is arranged on a second side of the second connection part opposite to the first side.

An advantageous embodiment of the present invention provides that a first support section for supporting the first connection part on the wall stud is arranged on the first connection part. This way, the wall stud can be fixed in a particularly stable manner. In a preferred manner, the first support section can be used here to form a form fit with the wall stud. In particular, the first support section can be configured to bear against the below described second support section of the wall stud. This allows the relative position between the mounting element and the wall stud to be specified in one direction, so that reproducibility during assembly and thus mountability is improved. In this case, the first support section can be arranged on a lateral edge of the first connection part that runs perpendicular to the connection edge.

According to an advantageous embodiment of the present invention, it can be provided that the first support section protrudes from the first connection part. In doing so, the first support section can preferably be arranged on a lateral edge of the first connection part that runs perpendicular to the connection edge.

In an advantageous embodiment of the present invention, it can be provided that the first connection part comprises a side face, wherein the side face of the first connection part has the first support section. Preferably, the side face of the first connection part is arranged laterally on the first connection part. The side face of the first connection part preferably extends from one of the four lateral edges. Particularly preferably, the side face of the first connection part extends from a lateral edge of the first connection part that runs perpendicular to the connection edge.

In an advantageous manner, it can be provided that the first support section is arranged on the first connection part, so that an opening angle results between the first connection part and the first support section which is preferably greater than 40°, particularly preferably greater than 85°. The opening angle between the first connection part and the first support section is preferably less than 140°, particularly preferably less than 95°. In particular, the opening angle between the first connection part and the first support section can be 90°.

In addition, it can be provided that two first support sections are provided. Particularly preferably, the two first support sections are arranged on the two lateral edges of the first connection part that run perpendicular to the connection edge.

An advantageous embodiment of the present invention provides that the second connection part of the mounting element has a cutout, wherein the cutout is arranged on a lateral edge running perpendicularly to the connection edge. The cutout can extend across the entire thickness of the second connection part. Preferably, the cutout has a rectangular basic shape. Here, the clear dimensions of the cutout can be larger than the dimensions of the below described reinforcement section of the recess of the wall stud. This allows the first connection part of the mounting element to be connected to a wall stud in the manner described below. Preferably, the first connection part is arranged in the receiving section of the wall stud, so that a section of the wall stud is arranged in the cutout of the second connection part. This allows the mounting element to be moved in the longitudinal direction of the wall stud during assembly prior to the fixation between the mounting element and the wall stud. This flexible positioning is advantageous for window installations and the like where a strut is arranged spaced apart from the ends of the wall stud. Preferably, the second connection part comprises two cutouts, wherein the cutouts are arranged opposite to each other on the two lateral edges running perpendicularly to the connection edge. Two reinforcement sections of the recess of the wall stud can each be arranged in a cutout of the second connection part.

According to an advantageous embodiment of the present invention, it can be provided that the first connection part has at least one first mounting hole and/or that the second connection part has at least one second mounting hole. Through the first mounting hole, connection means can extend for connecting the first connection part to the wall stud. Through the second mounting hole, connection means can extend for connecting the second connection part to the mounting rail. Preferably, connection means can comprise screws, in particular fast construction screws. In this case, it can be provided that the first connection part has multiple first mounting holes, preferably more than two first mounting holes. Preferably, the first connection part can have fewer than seven first mounting holes. In particular, the first connection part can have three first mounting holes. In addition, it can be provided that the second connection part has multiple second mounting holes. Preferably, the first and/or second mounting holes are formed as slotted holes. This makes it easy to compensate for design or manufacturing inaccuracies.

An advantageous embodiment of the present invention provides that the mounting element comprises a body made of metal. Preferably, the body is formed of sheet metal. It can be provided that the first connection part and the second connection part are manufactured in integral construction, in particular by forming, from one piece of sheet metal. Furthermore, it can be provided that the first guide section (or the first guide sections) together with the first and second connection parts is manufactured by means of integral construction, in particular by forming from a single piece of sheet metal. It can be provided that the body of the mounting element has a sheet thickness of more than 1 mm, preferably more than 1 .4 mm. In addition, it can be provided that the body of the mounting element has a sheet thickness of less than 5 mm, preferably less than 2 mm. In particular, the body of the mounting element can have a sheet thickness of 1.5 mm. In an advantageous manner, it can be provided that the first and second connection parts are connected to each other via a first bending line. It is also conceivable that the first and second connection parts are connected to each other via a bending area. In particular, the bending area can be rounded. The first guide section can be connected to the second connection part via a second bending line. The first support section can be connected to the first connection part via a third bending line.

In an advantageous manner, it can be provided that the mounting rail has a recess. It can be provided that the recess receives the first guide section of the mounting element. Here, it can be provided that the recess is at least partially delimited by the second guide section and/or the side wall.

The recess can have a bottom that is formed by a profile section of the mounting rail, the profile section being connected to the side wall by a connecting line. In doing so, an angle can be formed between the bottom and the side wall. Preferably, the angle is 90°. Preferably, a section of the side wall forms the second guide section. Preferably, the bottom is formed parallel to the mounting section.

Preferably, the mounting section can be spaced from the bottom. Preferably, the mounting rail comprises two recesses. In this case, the recesses can each be assigned to one of the side walls. Here, it can be provided that each of the recesses receives respectively one of the first guide sections of the mounting element. In doing so, it can be provided that the mounting section is arranged between the two recesses.

In this case, the mounting rail can have an intermediate section that connects the bottom to the mounting section. Preferably, the mounting rail has two intermediate sections arranged on two sides of the mounting section. It can be provided that the intermediate section and the bottom enclose an angle which is preferably in a range of 90° to 140°, in particular at 120°. The mounting section and the two intermediate sections can delimit a cavity for at least partially receiving the second connection means, in particular a screw.

Furthermore, it can be advantageously provided that the mounting rail comprises two bearing flanges which form a bearing surface for the wall stud. It can be provided that the bearing flange is arranged on the side wall. Preferably, one bearing flange is arranged on each side wall. It is conceivable that the bearing flange is formed parallel to the mounting section. The bearing flange can be formed parallel to the bottom. Preferably, the bearing flange is aligned horizontally in the assembly position of the mounting rail. In this case, it is preferred that the bearing flange is spaced apart from the plane of the mounting section. Preferably, the bearing flange is spaced apart from the plane of the mounting section opposite to the direction of the bottom. Particularly preferably, the distance between a plane of the bearing flange and the plane of the mounting section corresponds to the thickness of the second connection part. As a result, with the wall stud bearing against the bearing flanges, the second connection part of the mounting element can be enclosed by the mounting section and the wall stud and, possibly, the side walls. However, it is also possible that the distance between a plane of the bearing flange and the plane of the mounting section differs from the thickness of the second connection part, namely is larger or also smaller. With the mounting element arranged on the mounting section of the mounting rail, the upper side of the second connection part lies on a side of the plane of the bearing flange facing the mounting section or in the plane of the bearing flange. This allows the wall stud to bear against the bearing surface.

A preferred embodiment provides that the bearing flange is formed by a section of the mounting rail connected to the side wall by a bending line. Preferably, the bearing flange and side wall form an angle, especially preferably a right angle. This embodiment contributes in particular to good stability.

A preferred embodiment provides that the mounting rail is formed as a W-profile or M-profile.

In a preferred manner, it can be provided that the mounting rail has a body made of metal. Preferably, the body is formed of sheet metal. It can be provided that the side walls, the mounting section, the bottom or bottoms, the intermediate sections and the bearing flanges are manufactured in integral construction, in particular by forming, from one piece of sheet metal. It can be provided that the body of the mounting rail has a sheet thickness of more than 1 mm, preferably more than 1 .4 mm. It can be provided that the body of the mounting rail has a sheet thickness of less than 5 mm, preferably less than 2 mm.

A particularly advantageous embodiment of the present invention provides that the dry construction system comprises at least one wall stud. In an advantageous manner, it can be provided that the wall stud comprises a web on which a first fastening flange is arranged. Preferably, the web has a first side and a second side, wherein the first side and the second side face in opposite directions, wherein the first fastening flange has a free end on the first side of the web.

Preferably, the wall stud has a second fastening flange. In this context, it is preferred that the first fastening flange is arranged at a first end of the web and the second fastening flange is arranged at a second end of the web. The first and second fastening flanges can be configured, so that planking can be fastened to them. For this purpose, the first and second fastening flanges can have a contact surface for the planking. The provision of a first and/or a second fastening flange allows a planking to be easily attached to the wall stud, thus creating a fully or partially closed dry construction wall. If the wall stud has two fastening flanges, planking can be easily attached on both sides of the wall stud. Such a design is particularly suitable also for exterior walls, but can also be used for partition walls. Preferably, the second fastening flange has a free end on the first side of the web. As a result, the free ends of the first and second fastening flanges are both arranged on the first side of the web.

Furthermore, it can be advantageously provided that the first fastening flange (preferably, the first and second fastening flanges) is arranged at a right angle to the web. In addition, it can be provided that the first and second fastening flanges are arranged parallel to each other.

In an advantageous manner, it can be provided that the web is formed flat or has a profiling. In addition, it can be provided that the first fastening flange and/or the second fastening flange is formed flat or has a profiling. In doing so, an improved contact surface for the planking can be achieved.

An advantageous embodiment of the present invention provides that the wall stud is configured for connection to the mounting element comprising at least the first support section, wherein the wall stud comprises at least a second support section for bearing against the first support section of the mounting element. In particular, the second support section can be configured to bear against the first support section of the mounting element. Preferably, the wall stud has two second support sections each configured to bear against one of the first support sections of the mounting element. Preferably, the two second support sections are arranged opposite to each other. The second support sections can be arranged, so that an assembly clearance remains between them and the first support sections. This contributes to an easy assembly. A preferred embodiment provides that the second support section is arranged at one end of the web. Preferably, it can be provided that the second support sections are each arranged at one end of the web.

Advantageously, it can be provided that the second support section (preferably, both second support sections) is arranged in straight-line extension of the first fastening flange (preferably, the first and second fastening flanges) on the web.

An advantageous embodiment of the present invention provides that the wall stud has a rib arranged on the second side of the web, the rib connecting the first fastening flange to the web. The rib can be arranged perpendicular to the web. Preferably, the rib forms the second support section. In this case, the wall stud can also have two ribs forming two second support sections. However, it can also be provided that the wall stud has two ribs, only one of which forms a second support section. It can be provided that in the design with two ribs, these are arranged at two opposite ends of the web. Furthermore, it can be provided that the two ribs and the web form a U-shape in cross-section. Preferably, the resulting U-shape of ribs and web is oriented opposite to a U-profile or C-profile formed by the fastening flanges and the web. The first fastening flange can be arranged at one end of the web and connected directly to the rib. If two fastening flanges are provided, they can be arranged at two opposite ends of the web, and each connected directly to one of the ribs.

In an advantageous manner, it can be provided that the wall stud has a greater material thickness in the area of the rib than in an area of the web. Preferably, the material thickness in the area of the rib is between 1.5 and 2.5 times the material thickness in an area of the web. In particular, the material thickness in the area of the rib can be 2 times the material thickness in an area of the web. The greater material thickness can be obtained by the rib being doublelayered.

In addition, it can be provided that the first and/or the second fastening flange has a flange width that is greater than a rib width of the rib arranged in extension of the first and/or the second fastening flange. Preferably, both fastening flanges have a flange width that is greater than a rib width of the rib arranged in the extension of the respective fastening flange. In this case, the ratio of the flange width to the rib width is preferably in a range from 1 to 5, particularly preferably more than 2, especially more than 3. Moreover, the aforementioned ratio can be less than 4. This allows a sufficiently large contact surface for the planking to be achieved on a wall stud, so that the mountability of the planking is improved.

According to an advantageous embodiment of the present invention, it can be provided that the first and/or the second fastening flange has a bent edge at the free end, wherein the bent edge is arranged at an angle, preferably at a right angle, to the first and/or the second fastening flange. It is preferred if a bent edge is arranged on each of the two fastening flanges, wherein the bent edges face each other. These measures can improve the stability of the wall stud.

The wall stud can form a C- or U-profile. It is preferred if the web forms a central part of the C- or U-profile and the first and second fastening flanges form the legs of the C- or U-profile. Furthermore, it can be provided that the bent edges form the inwardly projecting edges of the C-profile.

In addition, it can be provided that the wall stud comprises a receiving section for receiving the first connection part of the mounting element, wherein the receiving section is on the second side of the web. Preferably, the receiving section is configured to receive the first connection part with the first support section or the first support sections. The receiving section can have a receiving section recess into which the first connection part can be inserted. This makes it particularly easy to position and fasten the wall stud during assembly. Preferably, the receiving section is arranged on the first profile part of the wall stud described below.

One advantageous embodiment of the present invention provides that the wall stud has two second support sections, and that the receiving section comprises a cavity delimited by the below described first web section and two second support sections arranged opposite to each other at the first web section. The cavity can be configured to receive the first connection part of the mounting element. Furthermore, it can be provided that the receiving section has a receiving section bottom and two side walls formed by the second support sections. Here, it can be provided that the second support sections are arranged laterally on the receiving section bottom and form the side walls. It is preferred if the second support sections are arranged at two opposite ends of the receiving section bottom. In particular, one (preferably, both) of the second support sections can be arranged perpendicular to the receiving section bottom. Preferably, the receiving section bottom is formed by the first web section. Here, it can be provided that one of the side walls is formed by the rib, and another of the side walls is formed by the below described second connection section. In addition, it can be advantageously provided that the ratio of a receiving section width of the receiving section to a wall stud width of the wall stud is more than 20%, preferably more than 30%, particularly preferably more than 40% or more than 50%. In this case, it can be provided that the aforementioned ratio is less than 85% or less than 75%, particularly preferably less than 65%. This also improves the structural connection between the mounting element and the wall stud.

In an advantageous manner, it can be provided that the wall stud has a body made of metal. Preferably, the body is formed of sheet metal. In particular, the metal can be steel, and especially preferably the steel can be galvanized.

Preferably, the below described wall stud with the first and second profile parts has two bodies made of metal.

In addition, it can be provided that the below described reinforcement section comprises double-layer sheet sections bent back on themselves by forming. Particularly preferably, all of the reinforcement sections comprise double-layer sheet sections bent back on themselves by forming. Furthermore, it can be provided that the below described first profile part, comprising the below described first web section and the reinforcement section, is manufactured in integral construction from a single piece. Furthermore, it can be provided that the below described second profile part, comprising the second web section and the reinforcement section, is manufactured in integral construction from a single piece. In particular, the first and/or the second profile part can be produced by forming from (in each case) one piece of sheet metal. Particularly preferably, the first profile part and the second profile part are each manufactured in integral construction, in particular by forming, from a single piece of sheet metal. The first and/or the second profile part can have a sheet thickness of more than 0.5 mm, preferably more than 1 mm. It can be provided that the first and/or the second profile part has a sheet thickness of less than 5 mm, preferably less than 2 mm.

A particularly preferred embodiment provides that the wall stud comprises a first and a second profile part, wherein the first profile part comprises a first web section of the web and the first fastening flange, wherein the second profile part comprises a second web section of the web, wherein the first profile part is connected to the second profile part via a bridge. It can be provided that the first profile part, the second profile part and the bridge are separate parts. The bridge, the first web section and the second web section together form the web. Thus, the wall stud can be of differential construction being composed of at least the first profile part, the second profile part, and the bridge. Preferably, the bridge connects the first web section to the second web section. This not only facilitates production. The bridge can preferably be used to achieve improved thermal and/or acoustic insulation. In particular in this case, the bridge represents a so-called insulating section. Preferably, the first profile part comprises the second support section. The first profile part can comprise the rib that forms the second support section. It is particularly preferred if the first profile part has two second support sections. In addition, the second profile part can comprise the second fastening flange. Furthermore, it can be provided that the second profile part comprises a rib.

A wall stud allows easy erection of a dry construction wall with good thermal and/or acoustic insulation properties. For the erection of a dry construction wall, the first fastening flange can be configured, so that a planking can be fastened to it. For this purpose, the first fastening flange can have a contact surface for the planking. Providing the first fastening flange allows planking to be attached to the wall stud, thereby creating a fully or partially closed dry construction wall. The planking can comprise planking panels such as cement-bonded construction boards, gypsum boards (in particular, gypsum plasterboards or gypsum fiberboards), wood fiberboards, facade boards, plastic boards and/or wood boards. The planking panels can be easily attached to the first fastening flange of the wall stud using connection means such as fast construction screws. This way, the assembly can be accelerated and simplified. This contributes to reduced construction costs. In addition, a high quality of construction can be achieved.

The first profile part, the second profile part and the bridge can be formed from separate parts which form the wall stud as an assembled component. The first web section and the second web section can preferably be formed from sheet metal. The bridge, the first web section and the second web section together form the web. The web can have a first major surface facing the first direction and a second major surface facing the second direction. Advantageously, the wall stud can be of differential construction composed of at least the first profile part, the second profile part and the bridge. This makes it possible to combine good stability properties of the first and second profile parts with good thermal insulation properties of the bridge. Preferably, the bridge connects the first web section to the second web section. With the bridge, particularly good thermal insulation can be achieved. In particular, the bridge represents an insulating section. Therefore, the wall stud is particularly suitable also for exterior walls. In addition, the wall stud can be used to easily create both load-bearing lightweight steel walls and non-load-bearing dry construction walls with different dimensions as well as good thermal and/or acoustic insulation properties in high quality and at low cost. The receiving section can be configured to receive the first connection part of the mounting element. In doing so, the receiving section can have a cavity into which the first connection part can be inserted. This makes it particularly easy to position and fasten the wall stud during assembly. Preferably, the receiving section is arranged on the first profile part. The first and second profile parts can have different lengths. Preferably, the second profile part can be longer than the first profile part. This makes it possible to realize dry construction walls in which continuous insulation is provided over at least two floors.

In an advantageous manner, it can be provided that the first profile part and the second profile part are each connected to the bridge in a form-fitting and/or force-fitting manner. In this context, the bridge can comprise first connection sections, and the first web section and the second web section can each have a second connection section. The first connection sections can each be connectable or connected to one of the second connection sections in a formfitting and/or force-fitting manner. Before the first and second connection sections are connected, the elements of the wall stud can be stored and transported particularly easily. Before or during the erection of a dry construction wall, the first and second connection sections are connected to each other. Furthermore, it can be provided in an advantageous manner that the second connection section of the first profile part forms one of the second support sections.

A distance section can be formed between the first connection sections of the bridge. In this case, the first connection sections can be formed thicker than a section of the distance section in a direction perpendicular to a connecting line running between the first connection sections. The advantage here is that, by using bridges with distance sections of different sizes, wall studs with different widths can be realized in a simple manner. The profile parts can be provided as standard modular elements while variations of the wall stud width of the wall stud can be obtained by different distance sections.

Furthermore, it can be provided that the bridge extends in the longitudinal direction of the wall stud over the length of the first profile part and/or the second profile part. Preferably, the bridge extends over more than 75% (more preferably, over more than 90% up to 100%) of the length of the first profile part. In addition, it can be provided that the bridge is configured as a one- piece component. This allows the bridge to extend continuously along the length of the wall stud. The aforementioned measures can further improve the stability of the wall stud. In addition, it can be provided that the bridge comprises at least a first connection section formed as an enlarged head, and that the first web section and/or the second web section each comprise a second connection section forming a chamber for receiving the enlarged head. The first and second connection sections can be formed, so that they have corresponding shapes. In doing so, a form fit can be achieved. It is conceivable for the first connection sections to be formed as enlarged heads and for the second connection sections to form chambers for receiving respectively one of the enlarged heads. The second connection sections can each have a free end spaced apart from the reinforcement sections described further below. As a result, a gap can be formed between the free end and the reinforcement section. The chambers can be completely surrounded in cross-section by the second connection sections except for the gap. Due to the fact that the chamber has the gap whose gap width is smaller than the thickness of the head received in the chamber, the head can be reliably held in the chamber with a form fit. The first connection sections can be insertable or inserted into the chambers in the longitudinal direction of the wall stud.

It can be provided in an advantageous manner that the wall stud has a recess, wherein the recess comprises a recess base and two recess sides, wherein the recess forms the receiving section. It is preferred if the two recess sides are arranged at opposite ends of the recess base. In particular, one (preferably, both) of the two recess sides can be angled, in particular perpendicular to the recess base. Preferably, it can be provided that the two recess sides comprise the two second support sections. Preferably, the recess can be arranged on the first profile part. Particularly preferably, the recess can be arranged in the web. In particular, the recess can be arranged in the first web section.

An advantageous embodiment of the present invention provides that the wall stud has at least one reinforcement section with a greater material thickness than an area of the web. In this context, it is preferred if the at least one reinforcement section is assigned to the receiving section. In particular, it can be provided that the at least one reinforcement section is part of the receiving section. Preferably, the material thickness in the reinforcement section is between 1.5 and 2.5 times the material thickness in an area of the web. In particular, the material thickness in the reinforcement section can be 2 times the material thickness of an area of the web. The greater material thickness can preferably be obtained by making the wall stud multilayered in the reinforcement section. A multilayered embodiment can be achieved by at least two sheet sections arranged on top of and parallel to each other. Preferably, the wall stud is double-layered in the reinforcement section. Furthermore, it is preferred if the wall stud has two reinforcement sections in the area of the receiving section. Preferably, the at least one reinforcement section can be in the form of a rib.

An advantageous embodiment of the present invention provides that at least one reinforcement section is oriented at an angle (preferably, perpendicularly) to a main web plane. The main web plane extends through a connection point of the web and the first fastening flange and runs perpendicular to the first fastening flange. If the wall stud comprises a first and a second fastening flange, then the main web plane extends through a connection point of the web and first fastening flange and through a connection point of the web and second fastening flange. The reinforcement section oriented at an angle to the main web plane can connect the first fastening flange to the web. Preferably, the reinforcement section can be on the second side of the web. In particular, the reinforcement section can be multilayered and comprise at least two sheet metal layers. These features can increase the structural stability of the wall stud.

An advantageous embodiment of the present invention provides that at least one reinforcement section is oriented parallel to a main web plane. The main web plane extends through a connection point of the web and the first fastening flange and runs perpendicular to the first fastening flange. If the wall stud comprises a first and a second fastening flange, then the web extends through a connection point of the web and first fastening flange and through a connection point of the web and second fastening flange. The recess can comprise the reinforcement section, wherein the reinforcement section is arranged on one of the recess sides. It can be preferred that the reinforcement section is arranged at an end of the recess side facing away from the recess base. In particular, the reinforcement section can be multilayered and comprise at least two sheet metal layers.

The reinforcement section forms an opening of the recess, wherein the clear width of the opening is smaller than the width of the recess defined by the distance between the recess sides. Preferably, the reinforcement section can be arranged perpendicular to the recess side. Preferably, the recess comprises two reinforcement sections, each arranged on one of the two recess sides. Preferably, the reinforcement sections can be arranged opposite to each other.

An advantageous embodiment of the present invention provides that the reinforcement section is spaced apart from an end of the recess side facing away from the recess base. Preferably, the reinforcement section can be arranged centered on the recess side. The recess side can comprise the second support section and a third support section, wherein the reinforcement section delimits the second support section from the third support section. Preferably, the recess has two recess sides, each having a reinforcement section arranged thereon, wherein each recess side has a second and a third support section. Preferably, the reinforcement sections are arranged opposite to each other.

A preferred embodiment provides that the recess forms a first receiving section chamber. The first receiving section chamber can be delimited by the recess base, by at least portions of the two recess sides, and by the reinforcement section (preferably, by two reinforcement sections). Further, the recess can form a second receiving section chamber, wherein the second receiving section chamber is delimited by portions of the two recess sides and by the reinforcement section (preferably, by two reinforcement sections). The reinforcement section (preferably, two reinforcement sections) can separate the first receiving section chamber from the second receiving section chamber. The first receiving section chamber can be adjacent to the second receiving section chamber. The first and/or second receiving section chamber can be configured to receive the first connection part of the mounting element. Here, the reinforcement section can form a support for the first connection part.

According to the present invention, it can be provided that the first profile part comprises a first linking section that connects the reinforcement section to the first fastening flange. Further, it can be provided that the first profile part comprises a second linking section that connects a further reinforcement section to the second connection section described below.

A preferred embodiment provides that the first web section is formed by a continuous sheet that forms the following sections in the following order: first linking section, first recess side that comprises a reinforcement section, recess base, second recess side that comprises a further reinforcement section, second linking section, second connection section.

A preferred embodiment provides that the second support section is arranged at one end of the web. In an advantageous manner, it can be provided that the second support section is arranged on the web in a straight-line extension of the fastening flange.

Preferably, the reinforcement section forms the second support section. In this case, the wall stud can also have two ribs, only one of which forms a second support section. In an advantageous manner, it can be provided that the first profile part comprises the rib that forms the second support section. In the design with two ribs, it can be provided that these are arranged at two opposite ends of the web. Furthermore, it can be provided that the two ribs and the web form a U-shape in cross-section. Preferably, the resulting U-shape of ribs and web is oriented opposite to a U-profile or C-profile formed by the fastening flanges and the web. The first fastening flange can be arranged at one end of the web and connected directly to the rib. If two fastening flanges are provided, they can be arranged at two opposite ends of the web, and each connected directly to one of the ribs.

An advantageous embodiment of the present invention provides that the reinforcement section, at least partially, forms the second connection section. In particular, the reinforcement section can be oriented parallel to the main plane of the web.

One advantageous embodiment of the present invention provides that the wall stud has two second support sections, and that the receiving section is delimited by the first web section and the two second support sections arranged opposite to each other at the first web section. The receiving section can be configured to receive the first connection part of the mounting element. Furthermore, it can be provided that the receiving section has a receiving section bottom and two side walls formed by the second support sections. Here, it can be provided that the second support sections are arranged laterally on the receiving section bottom and form the side walls. It is preferred if the second support sections are arranged at two opposite ends of the receiving section bottom. In particular, one (preferably, both) of the second support sections can be arranged perpendicular to the receiving section bottom. Preferably, the receiving section bottom is formed by the first web section. Here, it can be provided that one of the side walls is formed by the rib, and another of the side walls is formed by the second connection section. Preferably, the receiving section is arranged on the first profile part.

In addition, it can be advantageously provided that the ratio of a receiving section width of the receiving section to a wall stud width of the wall stud is more than 20%, preferably more than 30%, particularly preferably more than 40% or more than 50%. In this case, it can be provided that the aforementioned ratio is less than 85% or less than 75%, particularly preferably less than 65%. This also improves the structural connection between the mounting element and the wall stud.

In an advantageous manner, it can be provided that the wall stud has a body made of metal. Preferably, the body is formed of sheet metal. The metal can be aluminum or steel in particular. Particularly preferably, the steel can be corrosion-protected, for example galvanized. Preferably, the wall stud with the first and the second profile part has two bodies made of metal, in particular so-called half-shell profiles made of metal.

Furthermore, it can be advantageously provided that the bridge is made of a first material having a smaller thermal conductivity coefficient than a second material from which the first and/or the second profile part is made. Preferably, the thermal conductivity coefficient lambda of the material of the bridge is less than 0.5 W/mK, preferably less than 0.3 W/mK, particularly preferably less than 0.25 W/mK. The thermal conductivity coefficient lambda of the material of the bridge can preferably be more than 0.2 W/mK. In particular, the bridge can be made of plastic. These measures reduce heat transfer from the first profile part to the second profile part and vice versa, so that the thermal insulation between the fastening flanges is further improved. Particularly suitable plastics for the bridge are polyamide or polythermide. The high temperature resistance of polyamide allows profiles with polyamide bridges to be surface- treated (for example, powder coating or anodizing) in the factory compound (i.e., as a complete profile). In contrast to polyamide, polythermide has better insulation properties. Any surface treatment here should preferably be carried out before the production of a complete profile.

Furthermore, it can be provided that the dry construction system comprises planking panels.

The present invention is further based on the object of providing a dry construction wall, wherein the handleability and mountability is improved.

The object of the present invention is solved by a dry construction wall comprising the described dry construction system and a wall stud. Preferably, a planking is arranged on the wall stud.

In particular, the planking can be arranged on the first and/or second fastening flange of the wall stud. Preferably, a planking is arranged on each of the two fastening flanges of the wall stud. In this embodiment of the dry construction wall, the wall stud is planked on both sides. The planking can comprise planking panels. Preferably, the planking panels comprise cement- bonded construction boards, gypsum boards - in particular, gypsum plasterboards, gypsum fiberboards - wood fiberboards, facade boards, plastic boards and/or wood boards. The aforementioned planking panels can be provided on both sides of the wall stud. Cement- bonded construction boards are particularly insensitive to water and can therefore be used in particular on the outside of exterior walls. Planking with planking panels can be provided single-layered or double-layered. The planking panels can be reinforced on one or both sides, for example with a glass fiber mesh. The planking panels can be easily attached to the first and/or second fastening flange of the wall stud using connection means such as fast construction screws.

Preferably, the dry construction wall is a building wall, especially an exterior building wall.

An advantageous embodiment of the present invention provides that the dry construction wall is an exterior wall that delimits an interior space of, for example, a building from the surroundings. Here, it is advantageous if the first profile part is arranged on a side of the wall stud facing the interior and the second profile part is arranged on a side of the wall stud facing away from the interior. This allows improved thermal insulation to be achieved.

In a preferred manner, it can be provided that the wall stud and the mounting rail are connected with a mounting element. It can be provided that the second connection part of the mounting element is fastened to the mounting rail and that the first connection part of the mounting element is fastened to the wall stud. In this case, the first connection part of the mounting element can be arranged in the receiving section of the wall stud. Here, it can be provided that the first connection part is arranged in the first receiving space and/or in the second receiving space. Further, the first support section can bear against the second support section or the third support section. In addition, the first guide section can bear against the second guide section. Preferably, the second connection part bears against the mounting section of the mounting rail. It can be provided that the first guide section rests on the bottom of the mounting rail. Furthermore, the wall stud can bear against the bearing surface of the mounting rail, preferably on two bearing surfaces. Preferably, the wall stud bears against the bearing surface of the mounting rail only with the first profile part. This contributes to good thermal insulation of the dry construction wall. The above-mentioned measures can also improve the positioning of the various components in relation to each other during assembly. Assembly becomes easier and thus faster and less error-prone, improving so the handleability. Preferably, the wall stud and/or the mounting rail are configured in the manner described herein. The mounting rail can be arranged on a substrate of the building, such as a building floor or a building ceiling. Preferably, a mounting rail is arranged on the building floor and a further mounting rail is arranged on the building ceiling, wherein the ends of the wall stud are connected to the mounting rail and the further mounting rail, respectively, each with a mounting element. This way, the wall stud can be stably attached to the building.

An advantageous embodiment of the present invention provides that the mounting element is connected to the wall stud via a first connection means. In particular, the first mounting element can comprise a screw. The first connection means can be arranged in a first mounting hole of the first connection part. The screw can be screwed into the wall stud, in particular its web, through the first mounting hole of the first connection part. Furthermore, it can be provided that the mounting element is connected to the mounting rail via a second connection means. In particular, the second connection means can comprise a screw. The second connection means can be arranged in a second mounting hole of the second connection part of the mounting element.

In addition, it can be provided that the ratio of a maximum length of the wall stud in its longitudinal direction to the height of the dry construction wall is more than 80%, preferably more than 90%. The above ratio can be 100%, preferably less than 100%, especially preferably less than 99%. The height of the dry construction wall can be equal to the height of the room.

The dry construction wall can have insulation. The insulation can be arranged between the fastening flanges. The insulation can be arranged between the planking in case of planking on both sides. Insulation can further improve thermal and/or acoustic isolation. Preferably, the insulation comprises glass wool, rock wool, and/or wood fiber. In addition, the impermeability of the dry construction wall to water, especially in form of water vapor, can be improved.

An advantageous embodiment of the present invention provides that the second profile part is formed longer than the first profile part. In this case, the mounting rail can be fixed to an intermediate ceiling separating two floors, wherein the wall stud connected to the mounting rail with the mounting element protrudes beyond an outer side of the intermediate ceiling. Preferably, the second profile part can be configured, so that it extends continuously from one floor across the intermediate ceiling to another floor. This allows providing continuous thermal insulation over at least two floors. Therefore, it is not necessary to interrupt the insulation for the intermediate ceiling and form separate insulation for the adjacent floors. This contributes to thermal and acoustic insulation.

The present invention is further based on the object of providing a method for erecting a dry construction wall, wherein the handleability and mountability is improved.

The object of the invention is solved by a method for erecting a dry construction wall, comprising: providing the described dry construction system and at least one wall stud; providing a planking; wherein the planking is attached to the at least one wall stud of the dry construction system.

The described method allows to erect a dry construction wall in a simple manner. The planking is preferably fastened to the first fastening flange of the wall stud. Particularly preferably, the wall stud has a first and a second fastening flange, wherein a further planking is fastened to the second fastening flange. As a result, particularly good thermal and/or acoustic insulation can be achieved.

In particular, it can be provided that the method for erecting a dry construction wall comprises:

- fastening a described mounting rail to a substrate;

- arranging a described mounting element on the mounting rail;

- providing a described wall stud;

- arranging of the mounting element on the wall stud;

- connecting the mounting element to the wall stud and the mounting rail;

- attaching of planking to the wall stud.

The described mounting element allows an easy positioning when arranging the mounting element on the mounting rail. The first guide section of the mounting element facilitates alignment of the mounting element, so that the risk of faulty positioning is reduced. This simplifies the assembly process, which increases the assembly speed and improves handleability. In addition, the first connection part of the mounting element can assist in positioning when the mounting element is arranged on the wall stud. This measure also further improves assembly and handleability.

Further goals, characteristics, advantages and application possibilities of this invention result from the following description of exemplary embodiments based on the drawings. All described and/or depicted characteristics, individually or in any meaningful combination, form the subject-matter of the present invention, also independently from the summary in individual claims or their referrals.

Embodiments of the dry construction system, the mounting element, the mounting rail, the wall stud for the dry construction system and a dry construction wall are explained in more detail below with reference to the figures. These show, each schematically:

Fig. 1 : a perspective view of a dry construction system with a wall stud;

Fig. 2: a perspective view of a wall stud;

Fig. 3: a sectional view of the wall stud of figure 2;

Fig. 4: a perspective view of a mounting element;

Fig. 5: a front view of the mounting element of figure 4;

Fig. 6: a top view of the mounting element of figure 4;

Fig. 7: a perspective view of a mounting rail;

Fig. 8: a sectional view of the mounting rail of figure 7;

Fig. 9: a schematic side view of the dry construction system of figure 1 ;

Fig. 10: a schematic top view of the dry construction system of figure 1 ;

Fig. 11 : a sectional view of a dry construction wall;

Fig. 12: a sectional view of a second embodiment of the wall stud;

Fig. 13: a sectional view of a second embodiment of the mounting rail;

Fig. 14: a perspective view of a second embodiment of the mounting element;

Fig. 15: a front view of the mounting element of figure 14; Fig. 16: a top view of the mounting element of figure 14;

Fig. 17: a schematic side view of a second embodiment of a dry construction system;

Fig. 18: a first schematic top view of the dry construction system of figure 17 with the connection of wall stud and mounting rail at one end of a wall stud of the dry construction system;

Fig. 19: a second schematic top view of the dry construction system of figure 17 with the connection of the wall stud and strut in an area between the ends of a wall stud of the dry construction system;

Fig. 20: a sectional view of a second embodiment of a dry construction wall;

Fig. 21 : a sectional view of a third embodiment of the wall stud;

Fig. 22: a perspective view of a third embodiment of the mounting element;

Fig. 23: a side view of the mounting element of figure 22;

Fig. 24: a schematic side view of a third embodiment of a dry construction system;

Fig. 25: a first schematic top view of the dry construction system of figure 24 with the connection of wall stud and mounting rail at one end of a wall stud of the dry construction system;

Fig. 26: a second schematic top view of the dry construction system of figure 24 with the connection of the wall stud and strut in an area between the ends of a wall stud of the dry construction system;

Fig. 27: a sectional view of a fourth embodiment of the wall stud.

Figure 1 shows a dry construction system 41. The depicted dry construction system 41 for a wall stud 2 shown in Figure 2 comprises a mounting rail 3 shown in Figure 7 and a mounting element 1 depicted in Figure 4 for connecting the wall stud 2 to the mounting rail 3. Figures 1 , 9 and 10, as well as 17 and 18, as well as 24 and 25 show three embodiments of a dry construction system 41, 4T, 41”.

First, the individual elements wall stud 2, mounting element 1 and mounting rail 3 are explained in more detail. Figures 2 and 3 show a wall stud 2. Figures 12, 21 and 27 show further embodiments of a wall stud 2’, 2” and 2”’. The wall studs 2, 2’, 2”, 2”’ each have a web 10 on which a first fastening flange 11a and a second fastening flange 11b are arranged. The web 10 has a first side 49 and a second side 50, wherein the first side 49 and the second side 50 face in opposite directions. The first and second fastening flanges 11a, 11b each have a free end on the first side 49 of the web 10, as depicted.

In the depicted exemplary embodiment, the wall stud 2, 2’, 2”, 2”’ comprises two fastening flanges 11a, 11b. These are arranged at both ends of the web 10. The fastening flanges 11a, 11 b are configured, so that a planking described in more detail below can be fastened to them. For this purpose, the fastening flanges 11a, 11b each have a contact surface 37 for the planking. By attaching planking to the wall stud 2, 2’, 2”, 2”’, a fully or partially closed dry construction wall can be created. The fastening flanges 11a, 11b are arranged at a right angle to the web 10. In addition, the fastening flanges 11a, 11b are arranged parallel to each other. The web 10 and the fastening flanges 11a, 11 b are flat. Both fastening flanges 11a, 11 b each have a bent edge 13 at their free end, wherein the bent edge 13 is arranged at a right angle to the fastening flanges 11a, 11 b. The bent edges 13 face each other.

The wall studs 2, 2’, 2”, 2”’ depicted exemplarily in figures 2, 3, 12, 21 and 27 each form a C- profile. The web 10 forms a central part of the C-profile and the fastening flanges 11a, 11b form the legs of the C-profile. Furthermore, the bent edges 13 form the inwardly projecting edges of the C-profile.

The wall studs 2, 2’, 2”, 2”’ depicted in figures 2, 3, 12, 21 and 27 each have a receiving section 16 for connection to a mounting element 1 comprising a first connection part 4 described in more detail below. In the embodiment shown in figure 27, the receiving section 16 extends across substantially the entire width of the web 10.

The wall studs 2, 2’, 2” depicted in figures 2, 3, 12 and 21 each have reinforcement sections 39a, 39a’, 39b, 39b’ and 39a, 39a’, 39c, 39c’, respectively. The embodiment of the wall stud 2’” shown in figure 27 has two reinforcement sections 39b, 39b’. The material thickness in the reinforcement sections 39a, 39a’, 39b, 39b’, 39c, 39c’ is greater (about 2 times) than the material thickness in the area of the web 10. The depicted wall studs 2, 2’, 2”, 2’” are made of sheet metal and are double-layered in the reinforcement sections 39a, 39a’, 39b, 39b’, 39c, 39c’. The wall studs 2, 2’, 2”, 2’” each have two of the reinforcement sections 39a, 39a’, 39b, 39b’, 39c, 39c’ in the area of the receiving section 16. In the depicted exemplary embodiment, the wall studs 2, 2’, 2” have four reinforcement sections 39a, 39a’, 39b, 39b’ and 39a, 39a’, 39c, 39c’, respectively.

The wall studs 2, 2’, 2”, 2’” depicted in figures 2, 3, 12, 21 and 27 each have a second support section 15 to bear against the first support section 7 of the mounting element described below. In the depicted exemplary embodiment, the wall studs 2, 2’, 2”, 2’” each have two second support sections 15. Each of these is configured to bear against one of the first support sections of the mounting element. The two second support sections 15 are arranged opposite to each other.

The wall studs 2, 2’” depicted in figures 2, 3 and 27 comprise the receiving section 16 on the second side 50 of the web 10. In this case, the receiving section 16 has a receiving section recess 38 into which the first connection part 4 described further below can be inserted. The receiving section 16 comprises a cavity delimited by the web 10 in figure 27 and by a first web section 21 and two second support sections 15 in figures 2 and 3, respectively. The two second support sections 15 are arranged opposite to each other on the web 10 in figure 27 and on the first web section 21 in figures 2 and 3, respectively. The receiving section 16 comprises a receiving section bottom 17 and two side walls 18 formed by the second support sections 15. Here, the second support sections 15 are arranged laterally on the receiving section bottom 17 and form the side walls 18. The second support sections 15 are arranged at two opposite ends of the receiving section bottom 17 perpendicular to the receiving section bottom 17.

The wall studs 2, 2’” depicted in figures 2, 3 and 27 each have two ribs 14 arranged on the second side 50 of the web 10 and connecting the fastening flanges 11a, 11 b to the web 10. The ribs 14 are arranged perpendicular to the web 10. The ribs 14 are arranged at two opposite ends of the web 10. The ribs 14 and the web 10 form a U-shape in cross-section. The resulting U-shape of ribs 14 and web 10 is oriented opposite to a C-profile formed by the fastening flanges 11a, 11b and the web 10. The fastening flanges 11a, 11 b are arranged at two opposite ends of the web 10 and are each directly connected to one of the ribs 14.

The wall studs 2, 2’” depicted in figures 2, 3 and 27 have a greater material thickness in the area of the rib 14 than in an area of the web 10. The material thickness in the area of the rib 14 is 2 times the material thickness in an area of the web 10. In the depicted exemplary embodiment, this is achieved by the rib 14 being double-layered. In addition, both fastening flanges 11a, 11b of the wall stud 2, 2”’ shown in figures 2, 3 and 27 have a flange width A that is greater than a rib width B of the rib 14 arranged in extension of the respective fastening flange 11a, 11b. The ratio of the flange width A to the rib width B is 3.5 in the depicted exemplary embodiment. This provides a sufficiently large contact surface for the planking 12 on the wall stud 2.

In the embodiment of the wall stud 2”’ shown in figure 27, the second support sections 15 are each arranged in straight-line extension of the fastening flange 11 on the web 10. The two ribs 14 form the second support sections 15. The wall stud 2”’ with the ribs 14 is of integral construction, made by forming with sheet metal sections bent back on themselves and from a single piece of sheet metal. The wall stud 2”’ can have a sheet thickness v of 1 .5 mm.

Figures 2, 3, 12 and 21 show embodiments of the wall stud 2, 2’, 2” in which the wall stud 2, 2’, 2” comprise a first profile part 19 and a second profile part 20. The first profile part 19 comprises a first web section 21 of the web 10 and the first fastening flange 11a. The second profile part 20 comprises a second web section 22 of the web 10 and the second fastening flange 11b. The wall stud 2, 2’, 2” is depicted in (partial) section in figures 2, 3, 12 and 21. Hatching of the first profile part 19 and the second profile part 20 has been omitted for reasons of clarity.

The first profile part 19 and the second profile part 20 are each manufactured in integral construction by forming from a single piece of sheet metal. In this case, the reinforcement sections 39a, 39a’, 39b, 39b’, 39c, 39c’ are double-layered. This can be achieved by providing sheet sections that are bent back on themselves. The first and second profile parts 19, 20 can have a sheet thickness v of 1.5 mm, for example.

In the embodiments depicted in figures 2, 3, 12 and 21 , the first profile part 19 is connected to the second profile part 20 via a bridge 23. The first profile part 19, the second profile part 20 and the bridge 23 are separate parts. The bridge 23, the first web section 21 and the second web section 22 form the web 10. The wall stud 2, 2’, 2” is thus composed of the first profile part 19, the second profile part 20 and the bridge 23 in differential construction. The bridge 23 connects the first web section 21 to the second web section 22. Thermal and acoustic insulation is achieved with the bridge 23.

As can be seen in particular in figure 2, the bridge 23 can extend in longitudinal direction of the wall stud 2, 2’, 2” along the length of the first profile part 19 and the second profile part 20. The bridge 23 is formed in one piece and extends continuously along the length of the wall stud 2, 2’, 2”.

The first profile part 19 and the second profile part 20 are each connected to the bridge 23 in a form-fitting manner. In this regard, the bridge 23 comprises first connection sections 24 and the first web section 21 and the second web section 22 each comprise a second connection section 25. The first connection sections 24 are each connected to one of the second connection sections 25 in a form-fitting manner.

A distance section 26 is formed between the first connection sections 24 of the bridge 23. The first connection sections 24 are formed wider than a section of the distance section 26.

As shown in particular in figure 3, the first and second connection sections 24, 25 are formed, so that they have corresponding shapes. This way, a form fit is achieved. As depicted, the first connection sections 24 are formed as enlarged heads and the second connection sections 25 form chambers 47 for receiving respectively one of the enlarged heads. By providing the chamber 47 with a gap 48, the gap width being smaller than the thickness of the head received in the chamber 47, the head can be reliably held in the chamber 47 with a form fit. The first connection sections 24 are inserted into the chambers 47 in the longitudinal direction of the wall stud 2, 2’, 2”.

The bridge 23 is made of plastic, in particular polyamide or polythermide, and is thus made of a different material than the first profile part 19 and the second profile part 20. The bridge 23 is made of a first material having a lower thermal conductivity coefficient than a second material from which the first and/or second profile parts 19, 20 are made. The thermal conductivity coefficient lambda of the material of the bridge 23 is less than 0.5 W/mK, preferably less than 0.3 W/mK, particularly preferably less than 0.25 W/mK.

In the embodiment depicted in figures 2 and 3, the first profile part 19 has two second support sections 15. The first profile part 19 also comprises the rib 14 which forms one of the second support sections 15. The second connection section 25 of the first profile part 19 forms another one of the second support sections 15.

In case of the wall stud 2, the receiving section 16 is formed only by the first profile part 19. The receiving section bottom 17 is formed by the first web section 21. One of the side walls 18 is formed by the rib 14 arranged on the first web section 21 , and another of the side walls 18 is formed by the second connection section 25 arranged on the first web section 21. The ratio of a receiving section width C of the receiving section 16 to a wall stud width D of the wall stud 2 is 50% in the depicted example.

Two of the reinforcement sections 39b, 39b’ are oriented perpendicular to a main web plane of the web 10. The main web plain extends through a connection point of web 10 and first fastening flange 11a and through a connection point of web 10 and second fastening flange 11 b. The reinforcement section 39b oriented perpendicular to the main web plane connects the first fastening flange 11a to the web 10. The reinforcement section 39b’ oriented at right angles to the main plane of the web connects the second fastening flange 11 b to the web 10.

The wall studs 2’, 2” depicted in figures 12 and 21 comprise a recess 51 in the web 10, wherein the recess 51 comprises a recess base 52 and two recess sides 53, wherein the recess 51 forms the receiving section 16. The two recess sides 53 are arranged at opposite ends of the recess base 52. Both recess sides 53 are angled with respect to the recess base 52. The two recess sides 53 comprise the two second support sections 15. The recess 51 is arranged on the first profile part 19. The recess 51 is arranged in the first web section 21.

The reinforcement sections 39a, 39a’, 39c, 39c’ are oriented parallel to a main web plane of the web 10. The main web plain extends through a connection point of web 10 and first fastening flange 11a and through a connection point of web 10 and second fastening flange 11 b. The recess 51 comprises the reinforcement sections 39c, 39c’, wherein the reinforcement sections 39c, 39c’ are each arranged on one of the recess sides 53.

The reinforcement sections 39a, 39a’ partially form the second connection sections 25.

The reinforcement section 39c, 39c’ forms an opening 64 of the recess 51 , wherein the clear width E of the opening 64 is smaller than the width F of the recess 51 defined by the distance between the recess sides 53. The recess 51 comprises two reinforcement sections 39c, 39c’, each arranged on one of the two recess sides 53. In this case, the reinforcement sections 39c, 39c’ are arranged opposite to each other.

The recess 51 forms a first receiving section chamber 54. The first receiving section chamber 54 is delimited by the recess base 52, by at least portions of the two recess sides 53, and by two reinforcement sections 39c, 39c’. The first receiving section chamber 54 is configured to receive the first connection part 4 of the mounting element. The first profile part 19 has a first linking section 56 connecting the reinforcement section 39c to the first fastening flange 11a, and a second linking section 57 connecting the second reinforcement section 39c’ to the second connection section 25.

In this case, the first web section 21 is formed by a continuous sheet that forms the following sections in the following order: first linking section 56, first recess side 53 comprising a reinforcement section 39c, recess base 52, second recess side 53 comprising a further reinforcement section 39c’, second linking section 57, second connection section 25.

In the wall stud 2’ depicted in figure 12, the reinforcement section 39c, 39c’ is arranged at an end of the recess side 53 that is facing away from the recess base 52.

In the wall stud 2” depicted in figure 21 , the reinforcement section 39c, 39c’ is spaced apart from an end of the recess side 53 that is facing away from the recess base 52. The reinforcement section 39c, 39c’ is centered on the recess side 53. The recess side 53 comprises the second support section 15 and a third support section 58, wherein the reinforcement section 39c, 39c’ delimits the second support section 15 from the third support section 58. The recess 51 has two recess sides 53, each having a reinforcement section 39c, 39c’ arranged thereon, wherein each recess side 53 comprises a second support section 15 and a third support section 58. The reinforcement sections 39c, 39c’ are arranged opposite to each other.

In the exemplary embodiment depicted in figure 21 , the recess 51 forms a first receiving section chamber 54 and a second receiving section chamber 55, wherein the second receiving section chamber 55 is delimited by portions of the two recess sides 53 and by two reinforcement sections 39c, 39c’. The two reinforcement sections 39c, 39c’ divide the first receiving section chamber 54 from the second receiving section chamber 55. The first receiving section chamber 54 is adjacent to the second receiving section chamber 55. The first receiving section chamber 54 and the second receiving section chamber 55 are configured to receive the first connection part of the mounting element. The reinforcement section 39c, 39c’ forms a support for the first connection part 4.

Figures 4 to 6 show a mounting element 1. Figures 14,15 and 16 show a mounting element T, while figures 22 and 23 show a mounting element 1”. The mounting elements 1 , T, 1” are used to connect the wall stud 2, 2’, 2”, 2”’ of a dry construction structure to a mounting rail 3, 3’, as will be discussed in more detail below. The mounting element 1 depicted in figures 4 to 6 is intended for the wall stud 2 depicted in figures 2 and 3 or respectively the wall stud 2”’ depicted in figure 27 and the mounting rail 3 depicted in figures 7 and 8. The mounting element T depicted in figures 14, 15 and 16 is intended for the wall stud 2’ depicted in figure 12 and the mounting rail 3’ depicted in figure 13. The mounting element 1” depicted in figures 22 and 23 is intended for the wall stud 2” depicted in figure 21 and the mounting rail 3’ depicted in figure 13.

The depicted mounting elements 1 , T, 1 ” each comprise a first connection part 4 for fastening to the wall stud 2, 2’, 2”, 2”’ and a second connection part 5 for fastening to the mounting rail 3, 3’. The first connection part 4 and the second connection part 5 are connected and form an angle.

The first connection part 4 and the second connection part 5 are plate-shaped and flat. The first connection part 4 and the second connection part 5 have four lateral edges 69 which have a rectangular basic shape. One of the lateral edges 69 of each of the first and second connection parts 4, 5 is formed as a connection edge at which the first and second connection parts 4, 5 are connected to each other.

The first connection part 4 and the second connection part 5 are arranged at a right angle to each other. The first connection part 4 and the second connection part 5 each have a main extension plane, wherein the main extension planes are arranged at a right angle to one another. The mounting element 1 , T, 1” is formed as an L angle.

The first connection part 4 comprises three first mounting holes 8. The second connection part 5 comprises a second mounting hole 9. In the embodiments depicted in figures 14, 16 and 23, the second connection part 5 has three second mounting holes in each case. The first and second mounting holes 8, 9 can be formed as slotted holes. In the embodiment depicted in figures 4 to 6, all mounting holes 8, 9 are formed as slotted holes. In the embodiments depicted in figures 14, 15, 16, 22 and 23, the first mounting holes 8 are each formed as slotted holes.

A first guide section 6 is provided on the second connection part 5 for positioning the mounting element 1 , T, 1” on the mounting rail 3, 3’. In the depicted exemplary embodiment, the second connection part 5 has two first guide sections 6 for positioning the mounting element 1 , T, 1” on the mounting rail 3, 3’. The two first guide sections 6 are parallel to each other and arranged spaced apart from each other.

A first support section 7 is arranged on the first connection part 4 of the mounting element 1 , T, 1” for supporting the first connection part 4 on the wall stud 2, 2’, 2”, 2”’. In the depicted exemplary embodiment, the first connection part 4 has two first support sections 7. These are arranged spaced apart from each other and parallel to each other. Furthermore, the two first support sections 7 are arranged on two lateral edges 69 of the first connection part 4 which run perpendicular to the connection edge.

As shown in particular in figure 5, the first guide sections 6 can protrude from the second connection part 5 of the mounting element 1. In this case, the two first guide sections 6 are arranged on two lateral edges 69 of the second connection part 5 which run perpendicular to the connection edge. The first guide sections 6 are arranged on the second connection part 5, so that there is an opening angle between the second connection part 5 and the first guide sections 6, which is 90° in each case. The second connection part 5 and the two first guide sections 6 on the second connection part 5 form a U-shape in cross-section.

In the embodiment of figures 4 to 6, the first guide sections 6 are arranged on a first side of the second connection part 5, whereas the first connection part 4 is arranged on a second side of the second connection part 5 opposite to the first side.

As depicted in figures 14, 16 and 23, the second connection part 5 of the mounting element T, 1” comprises side faces 59, wherein two side faces 59 of the second connection part 5 comprise the two first guide sections 6. The two side faces 59 of the second connection part 5 are arranged laterally on the second connection part 5. The two side faces 59 of the second connection part 5 each extend from a lateral edge 69 of the second connection part that runs perpendicular to the connection edge. As depicted in figure 6, the first support sections 7 of the mounting element 1 can protrude from the first connection part 4. The first support sections 7 are arranged on the first connection part 4, so that there is an opening angle between the first connection part 4 and the first support section 7, which is 90° in each case. The first connection part 4 and the two first support sections 7 on the first connection part 4 form a U-shape in cross-section.

In this case, the first support sections 7 are arranged on a first side of the first connection part 4, whereas the second connection part 5 is arranged on a second side opposite to the first side of the first connection part 4.

In the embodiments depicted in figures 14, 15 and 22, the first connection part 4 of the mounting element T or 1” comprises side faces 60, wherein the two side faces 60 of the first connection part 4 form the two first support sections 7. The two side faces 60 of the first connection part 4 are arranged laterally on the first connection part 4. The two side faces 60 of the first connection part 4 each extend along a lateral edge 69 of the first connection part 4 that runs perpendicular to the connection edge.

As depicted in figures 14 and 16, the second connection part 5 of the mounting element T has two cutouts 61 , wherein the cutouts 61 are arranged on a lateral edge 69 running perpendicular to the connection edge. The cutouts 61 extend over the entire thickness of the second connection part 5. The cutouts 61 have a rectangular basic shape. The clear dimensions of the cutouts 61 are larger than the dimensions of the reinforcement section 39c, 39c’ of the recess 51 of the wall stud 2’ described above. The cutouts 61 are arranged opposite to each other on the two lateral edges 69 running perpendicular to the connection edge.

The depicted mounting elements 1 , T, 1” have a body made of sheet metal. The first connection part 4 and the second connection part 5 are each manufactured in integral construction by forming from a single piece of sheet metal. In this case, the first guide sections 6 and the first support sections 7, together with the first and second connection parts 4, 5, are of integral construction by forming, made from one piece of sheet metal. The body of the mounting element 1 , T, 1” can have a sheet thickness u of, for example, 1.5 mm. The first and second connection parts 4, 5 are connected to each other by a first bending line 34. In case of the mounting element 1 depicted in figures 4 to 6, the first guide section 6 is connected to the second connection part 5 via a second bending line 35. The first support section 7 is connected to the first connection part 4 via a third bending line 36. The first connection part 4 of the mounting element 1 depicted in figures 4 to 6 has two fixation cutouts 70. The second connection part 5 has four fixation cutouts 70. The fixation cutouts 70 are designed as circular holes. The fixation cutouts 70 can be bores or punched holes as depicted.

Figures 7 and 8 show a mounting rail 3. Figure 13 shows another embodiment of the mounting rail 3’. The mounting rails 3, 3’ have a second guide section 27. In the depicted exemplary embodiments, the mounting rail 3, 3’ has two second guide sections 27, each being configured to bear against the first guide sections 6 of the mounting element 1 , T, 1”. In addition, the mounting rail 3, 3’ comprises a mounting section 28 for connection to the second connection part. The connection can be made by a connection means, such as a screw. As depicted, the mounting section 28 has a flat bearing surface for bearing against the second connection part of the mounting element 1 , T, 1”.

The mounting rail 3, 3’ comprises two recesses 40. The recesses 40 are delimited by the second guide sections 27. The recesses 40 each have a bottom 29 formed by a profile section of the mounting rail 3, 3’ and connected to the second guide section 27 by a connecting line. An angle of 90° is formed between the bottom 29 and the second guide section 27. The bottom 29 forms a support on its underside with which the mounting rail 3, 3’ can be arranged on a substrate, such as a building floor 43 or a building ceiling 44. The bottom 29 is arranged parallel to the mounting section 28. It is configured to bear against the second connection part. The mounting section 28 is spaced apart from the bottom 29.

The mounting section 28 is arranged between the two recesses. In this case, the mounting rail 3, 3’ has two intermediate sections 30 arranged on two sides of the mounting section 28, each connecting the bottom 29 of the recesses to the mounting section 28. The intermediate sections 30 and the bottom 29 can each enclose an angle of about 120°. The mounting section 28 and the two intermediate sections 30 form a cavity for at least partially receiving a connection means, in particular a screw.

The mounting rail 3, 3’ comprises two bearing flanges 31 , each forming a bearing surface for the wall stud 2. A bearing flange 31 is arranged on each second guide section 27. The bearing flanges 31 are formed parallel to the mounting section 28. As shown in particular in figures 8 and 13, the mounting rail 3, 3’ is formed as a W-profile. The mounting rail 3, 3’ is depicted in a sectional view. Hatching has been omitted for reasons of clarity.

The mounting rail 3, 3’ comprises a body made of sheet metal. The second guide sections 27, the mounting section 28, the bottoms 29, the intermediate sections 30 and the bearing flanges 31 are of integral construction made by forming from a single piece of sheet metal and have a sheet thickness w of 1.5 mm. However, the mounting rail can also be manufactured by other means, such as extrusion.

The bearing flanges 31 of the mounting rail 3 in figure 8 are arranged in a plane of the mounting section 28. The recesses 40 are provided for receiving the first guide sections 6 of the mounting element 1. Each recess 40 can receive respectively one of the first guide sections 6 of the mounting element 1.

As shown in figure 13, the plane of the bearing flange 31 and the plane of the mounting section 28 are spaced apart by the distance d in case of the mounting rail 3’. The distance d corresponds in particular to the thickness of the second connection part 5. If a mounting element T, 1” is arranged on the mounting section 28 of the mounting rail 3’, the upper side of the second connection part 5 of the mounting element T, 1” lies in the plane of the bearing flange 31 or on a side of the plane of the bearing flange 31 facing the mounting section 28. This allows the wall stud 2’, 2” to bear against the bearing flange 31.

Figures 1, 9 and 10, 17 and 18, as well as 24 and 25 show three embodiments of a dry construction system 41 , 4T, 41”. The dry construction system 41 depicted in figures 1, 9 and 10 comprises a wall stud 2 shown in figure 2 and a mounting rail 3 shown in figure 7, as well as a mounting element 1 depicted in figure 4 for connecting the wall stud 2 to the mounting rail 3. The dry construction system 4T depicted in figures 17 and 18 comprises a wall stud 2’ shown in figure 12 and a mounting rail 3’ shown in figure 13, as well as a mounting element T depicted in figure 14 for connecting the wall stud 2’ to the mounting rail 3’. The dry construction system 41” depicted in figures 24 and 25 comprises a wall stud 2” shown in figure 21 and a mounting rail 3’ shown in figure 13, as well as a mounting element 1 ” depicted in figure 22 for connecting the wall stud 2” to the mounting rail 3’.

The dry construction systems 41 , 4T, 41” are shown with exactly one wall stud 2, 2’, 2” by way of example. However, the dry construction system 41 , 4T, 41” can also comprise multiple wall studs 2, 2’, 2”. These can be arranged in parallel and at a distance from each other when erecting a dry construction wall. This way, also larger walls can be created with the dry construction system 41 , 4T, 41”. Figures 1, 9 to 10, 17 and 18, as well as 24 and 25 show the wall stud 2, 2’, 2”, the mounting element 1 , T, 1” and the mounting rail 3, 3’ as they may be arranged to create a dry construction wall to illustrate the use of the components.

As shown in particular in figure 9, the wall stud 2 can be arranged at a right angle to the mounting rail 3. In particular, the wall stud 2 can be arranged vertically, while the mounting rail 3 is arranged horizontally. The second connection part 5 of the mounting element 1 can be fastened to the mounting rail 3, and the first connection part 4 of the mounting element 1 can be fastened to the wall stud 2.

Figures 1, 9 to 10, 17 and 18, as well as 24 and 25 show, by way of example, the connection of the lower ends of the wall studs 2, 2’, 2” to the mounting rails 3 and 3’, respectively. The upper end of the wall stud 2, 2’, 2” can be connected in the same way to a further mounting rail 3, 3’ via a further mounting element 1 , T, 1” as depicted in figure 11 by way of example. This way, the wall stud 2, 2’, 2” can be connected to a substrate such as a building floor 43 and a building ceiling 44.

Figures 9, 17 and 24 show side views of dry construction systems 41 , 4T, 41”. As depicted, the first guide sections 6 of the mounting element 1 , T, 1” can bear against the second guide sections 27 of the mounting rail 3, 3’. The first guide sections 6 of the mounting element 1 rest on the bottoms 29 of the mounting rail 3, 3’. The second connection part 5 bears against the mounting section 28. For a better overview, the wall stud 2, 2’, 2” is depicted dashed in figures 9, 17 and 24. In figures 17 and 24, it is also depicted a sectional view of the wall stud 2’, 2” for better distinguishability. The wall stud 2, 2’, 2” comes to bear against the two bearing flanges 31 of the mounting rail 3, 3’. The mounting element 1 , T, 1” is connected to the mounting rail 3, 3’ via a second connection means 32. The second connection means 32 comprises a screw and is arranged in a second mounting hole 9 of the second connection part 5.

Figures 10, 18 and 25 show top views of dry construction systems 41 , 4T, 41” from above. In figures 10, 18 and 25, it can be seen that the first support sections 7 of the mounting element 1 , T, 1” bear against the second support sections 15 of the wall stud 2, 2’, 2”. In doing so, the second support sections 15 are arranged, so that an assembly clearance remains between them and the first support sections 7 for easy assembly. For a better overview, the mounting rail 3, 3’ is depicted dashed in figures 10, 18 and 25. The mounting element 1 , T, 1” is connected to the wall stud 2, 2’, 2” by a first connection means 33. The first connection means 33 comprises screws, each being arranged in a first mounting hole 8 of the first connection part 4. The screws are screwed into the web 10 of the wall stud 2, 2’, 2” through the first mounting holes 8 of the first connection part 4. In figures 10, 18 and 25, it is also clearly visible that the wall stud 2, 2’, 2” bears only with the first profile part 19 against the bearing flange 31 of the mounting rail 3, 3’.

Figures 19 and 26 show top views of dry construction systems 4T, 41” from above. The figures each show an embodiment in which a horizontal strut 68 is attached to the wall stud 2’, 2” in an area between the ends of the wall studs 2’, 2”. For this purpose, the dry construction system has a (possibly additional) mounting element T, 1” which is arranged in a central area of the wall stud 2’, 2”. This way, for example, a window can be installed that does not extend over the entire height of the wall stud 2’, 2”. The mounting element T, 1 ” can be arranged at different heights on the wall stud 2’, 2” in this case and thus allows flexible mounting. In the depicted embodiments, for the horizontal strut 68, a segment of the profile is used like it is also used for the wall stud 2’, 2”. For a better overview, a sectional view of the strut 68 is depicted in figures 19 and 26. In figure 19, the flexible positioning of the mounting element T in the longitudinal direction of the wall stud 2’ is achieved by the mounting element T having two cutouts 61 arranged on a lateral edge 69 running perpendicular to the connection edge. The clear dimensions of the cutouts 61 are slightly larger than the dimensions of the reinforcement section 39c, 39c’ of the recess 51 of the wall stud 2’, which allows the first connection part 4 to be arranged in the receiving section 16 of the wall stud 2’, so that the reinforcement sections 39c, 39c’ of the wall stud 2’ are arranged in the cutout 61 of the second connection part 5. This allows the mounting element T to be moved in the receiving section 16 of the wall stud 2’ in the longitudinal direction of the wall stud 2’ during assembly. In the embodiment of figure 26, the flexible positioning of the mounting element 1” in the longitudinal direction of the wall stud 2” is achieved by the mounting element 1” being arranged in the second receiving section chamber 55 of the wall stud 2”, so that, here too, the reinforcement sections 39c, 39c’ of the recess 51 do not block the movement of the mounting element 1”. It can be seen that the first support sections 7 of the mounting element 1” rest against the third support sections 58 of the wall stud 2”. In comparison, in figure 25, it can be clearly seen that the mounting element 1” provided for connecting the wall stud 2” to the mounting rail 3’ is arranged in the first receiving section chamber 54 of the wall stud 2”. In this case, the mounting element 1” is arranged at an end of the wall stud 2”. Figure 11 shows an exemplary embodiment of a dry construction wall 42. The dry construction wall 42 comprises the dry construction system 41 shown in figures 1, 9 and 10, comprising the mounting rail 3 of figure 6, the mounting element 1 of figure 4 and a wall stud 2 of figure 2.

In the depicted exemplary embodiment, the dry construction wall 42 comprises two mounting rails 3, wherein the wall stud 2 is arranged between the mounting rails 3. Two mounting elements 1 are provided to connect the wall stud 2 at its two ends to the mounting rails 3. This way, the wall stud 2 can be fastened on both sides (for example, to a floor and a ceiling). The connection is designed as shown in figures 1, 9 and 10.

Furthermore, a planking 12 is arranged on the first fastening flange 11a of the wall stud 2. The planking 12 comprises planking panels. Preferably, the planking panels comprise cement boards, gypsum boards, gypsum plasterboards, gypsum fiberboards, wood fiberboards, plastic boards, and/or wood boards.

In addition, the dry construction wall 42 depicted by way of example comprises schematically depicted insulation 46. The insulation 46 is arranged on the wall stud 2 between the fastening flanges 11a, 11b. Furthermore, it can be provided that a planking 12 is arranged on both fastening flanges 11a, 11b of the wall stud 2. In this case, the insulation can be arranged between the planking 12. The insulation contributes to the thermal and acoustic insulation of the dry construction wall 42. Preferably, the insulation comprises glass wool, rock wool, and/or wood fiber.

The two horizontal dashed lines running in parallel are break lines and mean that the wall stud 2 and the planking 12 are shown shortened to save space. The geometry of the wall stud 2 and the planking 12 between the break lines is constant.

The dry construction wall 42 is a building wall and extends from a building floor 43 to a building ceiling 44. In particular, the depicted dry construction wall 42 can form an exterior wall of the building. In this case, the dry construction wall 42 delimits an interior space from the surroundings, wherein, in the depicted example, the first profile part 19 is arranged on a side of the wall stud 2 facing the interior space and the second profile part 20 is arranged on a side of the wall stud 2 facing away from the interior space. This further improves the effect of thermal insulation. Thermal insulation is further improved by the fact that the bridge 23 is made of a first material having a lower thermal conductivity coefficient than a second material from which the first and second profile parts 19, 20 are made. These measures reduce heat transfer from the first profile part 19 to the second profile part 20 and vice versa, so that the thermal insulation between the fastening flanges is further improved.

To create such a dry construction wall 42, a mounting rail 3 is first attached to a substrate such as a building floor 43 or a building ceiling 44. A mounting element 1 is then arranged on the mounting rail 3. In this case, the first guide sections 6 are arranged on the second guide sections 27. The mounting element 1 can be moved along the mounting rail 3 to define the position of the wall stud 2. The wall stud 2 is arranged on the mounting element 1. In this case, the first connection part 4 of the mounting element is arranged in the receiving section 16 of the wall stud 2, so that the first support sections 7 are assigned to the second guide sections 27. The mounting element 1 is then fixed to the wall stud 2 via first connection means 33 and to the mounting rail 3 via second connection means 32. Finally, a planking 12 is attached to the contact surface 37 of the wall stud 2.

One of the mounting rails 3 is fixed to the building floor 43. The other of the mounting rails 3 is fixed to the building ceiling 44. The mounting rails 3 can be fixed to the building floor 43 and building ceiling 44 with screws 45. In doing so, the screws 45 are each arranged on the bottoms 29 of the mounting rail 3.

The ratio of a maximum length of the wall stud 2 in its longitudinal direction to the height of the dry construction wall 42 is nearly 100% in the depicted exemplary embodiment. The height of the dry construction wall 42 corresponds to the height of the room.

Figure 20 shows another embodiment of a dry construction wall 42’ by way of example. The dry construction wall 42’ comprises the dry construction system 4T shown in figures 17 and 18 with the mounting rail 3’ of figure 13, the mounting element T of figure 14 and a wall stud 2’ of figure 12.

The dry construction wall 42’ is a building wall and protrudes on both sides from an intermediate ceiling 63 arranged between two floors. In particular, the depicted dry construction wall 42’ can form an exterior wall of the building. In this case, the dry construction wall 42’ delimits an interior space from the surroundings, wherein, in the depicted example, the first profile part 19 is arranged on a side of the wall stud 2’ facing the interior space and the second profile part 20 is arranged on a side of the wall stud 2’ facing away from the interior space. Furthermore, a planking 12 is arranged on the fastening flanges 11a, 11 b of the wall stud 2’. The planking 12 comprises planking panels. Preferably, the planking panels comprise cement boards, gypsum boards, gypsum plasterboards, gypsum fiberboards, wood fiberboards, plastic boards, and/or wood boards. Here, the first fastening flange 11a comprises a double planking. A floor 62 is arranged on the side of the double planking facing the interior space, comprising a floor covering 65, a screed 66 and an insulating layer 67.

In the depicted exemplary embodiment, the wall stud 2’ is connected to the mounting rail 3’ via the mounting element T. The mounting rail 3’ is fixed to the intermediate ceiling 63. The mounting rail 3’ can be fixed to the intermediate ceiling 63 with screws 45. The screws 45 are arranged on the bottoms 29 of the mounting rail 3’ in each case.

In addition, the dry construction wall 42’ depicted by way of example comprises schematically depicted insulation 46. The insulation 46 is arranged on the wall stud 2’ between the plankings 12. The insulation contributes to the thermal and acoustic insulation of the dry construction wall 42’. Preferably, the insulation comprises glass wool, rock wool, and/or wood fiber.

The intermediate ceiling 63 comprises an outer surface facing away from the interior space. The wall stud 2’ protrudes beyond the outer side of the intermediate ceiling 63 at least with the second profile part 20. This makes it possible to provide continuous thermal insulation over at least two floors. For this purpose, the second profile part 20 is longer than the first profile part 19. In particular, the second profile part 20 is configured, so that it extends continuously from one floor across the intermediate ceiling 63 to another floor. It is therefore not necessary to interrupt the insulation for the intermediate ceiling 63 and form separate insulation for the adjacent floors. This contributes to the thermal and acoustic insulation of the dry construction wall 42’.

List of reference si

1, 1’, 1” mounting element

2, 2’, 2”, 2”’ wall stud

3, 3’ mounting rail

4 first connection part

5 second connection part

6 guide section [of the second connection part 5]

7 support section [of the first connection part 4]

8 mounting hole [of the first connection part 4]

9 mounting hole [of the second connection part 5]

10 web

11a, 11b fastening flanges

12 planking

13 bent edge

14 ribs

15 support section [of wall stud 2]

16 receiving section [of wall stud 2]

17 bottom [of receiving section 16]

18 side walls [of receiving section 16]

19 first profile part

20 second profile part

21 first web section

22 second web section 23 bridge

24 connection sections [of bridge 23]

25 connection sections [of web sections 21 , 22]

26 distance section [of bridge 23]

27 guide section [of mounting rail 3]

28 mounting section [of mounting rail 3]

29 bottom [of mounting rail 3]

30 intermediate sections [of mounting rail 3]

31 bearing flanges [of mounting rail 3]

32 connection means

33 connection means

34 first bending line

35 second bending line

36 third bending line

37 contact surface for planking

38 receiving section recess

39a, 39a’ reinforcement section (in the area of the bridge)

39b, 39b’ reinforcement section (in extension of the fastening flanges)

39c, 39c’ reinforcement section (in the area of the recess)

40 recess [of mounting rail 3]

41 , 41’, 41” dry construction system

42, 42’ dry construction wall

43 building floor

44 building ceiling 45 screw

46 insulation

47 chambers [of the connection sections 25]

48 gap

49 first side of the web 10

50 second side of the web 10

51 recess

52 recess base

53 recess side

54 first receiving section chamber

55 second receiving section chamber

56 first linking section

57 second linking section

58 third support section

59 side face of the second connection part

60 side faces of the first connection part

61 cutout

62 floor

63 intermediate ceiling

64 opening

65 floor covering

66 screed

67 insulating layer

68 strut 69 lateral edge

70 fixation cutout

A flange width B rib width

C receiving section width

D wall stud width

E clear width of opening

F width of recess d distance between plane of bearing flange and plane of mounting section of mounting rail t sheet thickness of mounting element u sheet thickness of wall stud v sheet thickness of mounting rail

Claims

1. Dry construction system (41 , 41’, 41”) comprising a mounting rail (3, 3’) and a mounting element (1 , 1’, 1”) for connecting a wall stud (2, 2’, 2”, 2”’) to the mounting rail (3, 3’), wherein the mounting element (1 , T, 1”) comprises a first connection part (4) for fastening to the wall stud (2, 2’, 2”, 2”) and a second connection part (5) for fastening to the mounting rail (3, 3’), wherein the first connection part (4) and the second connection part (5) are connected and form an angle, wherein the second connection part (5) has a first guide section (6) for positioning the mounting element (1 , 1’, 1”) on the mounting rail (3,3), wherein the mounting rail (3, 3’) has a bottom (29) and two side walls spaced apart from each other, wherein the bottom (29) and the side walls are arranged at an angle to each other, wherein the side walls have at least one second guide section (27) for bearing against the first guide section (6), wherein the mounting rail (3, 3’) has a mounting section (28) for connecting to the second connection part (5) of the mounting element (1 , T, 1”), wherein the second guide section (27) and the mounting section (28) delimit a receiving space for receiving the second connection part (5) of the mounting element (1 , T, 1”), characterized in that the mounting rail (3, 3’) has at least one bearing flange (31) which forms a bearing surface for the wall stud (2, 2’, 2”, 2”’).

2. Dry construction system (41 , 4T, 41”) according to claim 1 , characterized in that the first connection part (4) and/or the second connection part (5) have four lateral edges (69) that form a parallelogram.

3. Dry construction system (41 , 41’, 41”) according to claim 1 or 2, characterized in that a first support section (7) for supporting the first connection part (4) on the wall stud (2, 2’, 2”, 2’”) is arranged on the first connection part (4).

4. Dry construction system (41 , 41’, 41”) according to any of claims 1 to 3, characterized in that the first and/or the second connection part (4, 5) are plate-shaped.

5. Dry construction system (41 , 41’, 41”) according to any of claims 1 to 4, characterized in that the mounting rail (3, 3’) comprises two bearing flanges (31) which form a bearing surface for the wall stud (2, 2’, 2”, 2”’).

6. Dry construction system (41 , 41’, 41”) according to any of claims 1 to 5, characterized in that the mounting rail (3, 3’) comprises two recesses (40), wherein the mounting section (28) is arranged between the two recesses (40).

7. Dry construction system (41 , 41’, 41”) according to any of claims 1 to 6, characterized in that the bearing flange (31) is spaced apart from the plane of the mounting section (28).

8. Dry construction system (41 , 41’, 41”) according to any of claims 1 to 7, characterized in that the mounting rail (3, 3’) is formed as a W-profile or M-profile.

9. Dry construction system (41 , 41’, 41”) according to any of claims 1 to 8, characterized in that the dry construction system (41 , 4T, 41”) comprises at least one wall stud (2, 2’, 2”, 2’”).

10. Dry construction system (41 , 4T, 41”) according to claim 9, characterized in that the wall stud (2, 2’, 2”, 2’”) comprises a web (10) on which a first fastening flange (11a) is arranged.

11 . Dry construction system (41 , 4T, 41”) according to claim 9 or 10, characterized in that the wall stud (2, 2’, 2”, 2’”) comprises a receiving section (16) for receiving the first connection part (4) of the mounting element (1 , 1’, 1”).

12. Dry construction system (41 , 41’, 41”) according to any of claims 9 to 11 , characterized in that the wall stud (2, 2’, 2”, 2’”) comprises a first and a second profile part (19, 20), wherein the first profile part (19) comprises a first web section (21) of the web (10) and the first fastening flange (11a), wherein the second profile part (20) comprises a second web section (22) of the web (10), wherein the first profile part (19) is connected to the second profile part (20) via a bridge (23).

13. Dry construction wall (42, 42’) comprising a dry construction system according to any of claims 9 to 12 and a wall stud (2, 2’, 2”, 2”’), wherein the wall stud (2, 2’, 2”, 2”’) and the mounting rail (3, 3’) are connected with a mounting element (1 , T, 1”).

14. Dry construction wall (42, 42’) according to claim 13, characterized in that a planking (12) is arranged on the wall stud (2, 2’, 2”, 2’”).

15. Method for erecting a dry construction wall, comprising:

- providing a dry construction system according to any of claims 1 to 12 and at least one wall stud (2, 2’, 2”, 2’”);

- providing a planking (12); wherein the planking (12) is attached to the at least one wall stud (2, 2’, 2”, 2’”) of the dry construction system.