EP3224421B1 - Corner element for a frame structure, and frame structure - Google Patents

Description

The invention relates to a multi-part corner element for a frame construction comprising at least one hollow profile with the features of the preamble of claim 1. Furthermore, the invention relates to a frame construction with such a corner element.

State of the art

From the published patent application DE 10 2012 103 719 A1 a metallic frame structure for realizing a container-shaped, modular and mobile housing is known. The frame structure comprises main floor profiles to be arranged horizontally and main roof profiles to be arranged horizontally, which can each be connected to form a floor frame or roof frame. To connect the floor frame to the roof frame, the frame structure further comprises support profiles which are each arranged at the corners of the frame. The connection is achieved in each case by a screw connection. The screw connection has the advantage that the frame structure can be quickly dismantled and reassembled elsewhere in order to provide housing in a short time and at low cost. Disassembled into individual profiles, the frame structure can also be easily transported and / or stored in a space-saving manner. In other words, a kit is provided that offers a wide range of uses.

In buildings made of such frame structures, the rigidity of the construction or its stiffening play a major role. For example, stiffening can be achieved using diagonally extending bars or ropes. Furthermore, the frame can be stiffened by filling or cladding.

In addition, it is important to ensure that the connection between the frames and support profiles is sufficiently rigid. Special attention must therefore always be paid to the corner formation of such structures.

From the US 2009/0032530 A1 a mobile work and storage container is known which comprises a floor frame and a ceiling frame for receiving wall, floor and ceiling panels. The floor frame and the ceiling frame are connected by vertically extending support profiles. To improve the rigidity of the construction, the support profiles each have a shaft-like extension at their two ends for insertion into a tubular corner element of the floor or ceiling frame. The connector can also be fixed using screws. The tubular corner element is an integral part of the floor or ceiling frame, which has a beneficial effect on the rigidity of the construction. However, the frames cannot be dismantled any further, so that transport and storage options are limited.

DE 3711215 A1 discloses a frame construction with corner elements and hollow profiles connected thereto. The corner elements described there are each composed of two parts and have three arms, to each of which a hollow profile is connected by means of a latching mechanism.

That from the U.S. 3,919,603 A known corner element has arms which are formed from a bent sheet metal. A similarly curved profile is pushed onto each of the arms and connected to this in order to form a frame construction for switchgear.

Also one in the U.S. 4,630,550 A The frame structure disclosed for a workbench is composed of corner elements and hollow profiles mounted on them. The corner element described there has a cube-shaped carrier element which encloses a cavity with a square cross-section. Three short arms, which hold the hollow profiles, are welded to the carrier element. Each arm has four longitudinally extending side walls that enclose a cavity.

GB 1,150,055 A discloses a multi-part corner element according to the preamble of claim 1.

The present invention is based on the object of specifying a corner element for a frame construction comprising at least one hollow profile, which on the one hand allows the frame construction to be broken down as small as possible and on the other hand makes a contribution to the rigidity of the construction. Furthermore, a corner element is to be specified which can be produced simply and inexpensively and which also enables simple assembly of the frame structure.

To achieve the object, a corner element with the features of claim 1 is proposed. Advantageous further developments of the invention can be found in the subclaims. Furthermore, a frame construction with such a corner element is specified for solving the problem.

Disclosure of the invention

The multi-part corner element proposed for a frame construction comprising at least one hollow profile is manufactured according to the invention from a metallic material and has two arms which are at right angles to one another and which enable a hollow profile to be connected. Own the arms in each case at least four longitudinally extending side walls which enclose a cavity.

The proposed corner element is suitable for forming a frame corner of a floor or ceiling frame, which comprises hollow profiles arranged at right angles to one another. For this purpose, a hollow profile is preferably connected to an arm of the corner element. The connection is also preferably made in such a way that the connection can be released again in order to enable the frame to be dismantled into its individual parts if necessary. A detachable connection can be effected, for example, by means of a plug-in, clamp, snap-in and / or screw connection. To implement a plug connection, one end of the hollow profile is preferably slipped onto an arm of the corner element or inserted into its cavity. The cavities enclosed by the at least four side walls of the arms are therefore preferably designed to be open at the end. Alternatively or in addition, the hollow profile to be connected to the corner element can be screwed to an arm of the corner element.

Plug, clamp, snap-in and / or screw connections not only have the advantage that they can be released again if necessary. They are also easy and quick to make. The use of a corner element according to the invention thus enables a frame structure to be installed quickly and easily. Furthermore, the production of such connections does not generally require any special tools, so that the assembly can be carried out at any location and by anyone. This proves to be particularly advantageous when, for example, the frame structure is to be used to create emergency shelters in crisis areas.

The proposed corner element with at least two arms is initially used to assemble a frame, in particular a floor or ceiling frame, which comprises at least four hollow profiles that can be connected via the proposed corner element. A rectangular frame, for example, as is usually used in such frame constructions, has a total of four such corner elements. In order to connect the frame to a further frame, support profiles are preferably used, which are furthermore preferably arranged in the area of the frame corners in order to keep the two frames at a distance. If the two frames are used to form a floor and a ceiling, the length of the support profiles determines the height of the future room. Before and / or Inserted between the profiles of the frame filling elements, for example in the form of insulated panels, which can also include window and door elements.

The corner position of the support profiles generally requires the corner element to be designed so that the support profile can be attached to the frame. For this purpose, the corner element can have a further arm, which in turn is arranged at a right angle to the other two arms. A corresponding design of the proposed corner element is described below in connection with a preferred development of the invention.

Accordingly, container-like structures can be constructed from frames, support profiles and filling elements, which can be strung together or stacked one on top of the other, in order to create multi-storey buildings, for example. The frame construction represents the load-bearing structure so that it has to be designed according to the static requirements. This applies in particular to the corner elements of such a construction.

When assembling and dismantling a frame structure, the corner element is exposed to high loads. The same applies if several frame constructions are to be stacked on top of each other and the corner element has to carry the weight of the further frame construction or frame constructions. It is advantageous here that the corner element according to the invention is made of a metallic material, preferably steel, and thus has a high level of strength. The strength of the corner element and of the frame construction having the corner element also increase. In particular, the rigidity of the frame structure is increased.

The strength of the corner element is also not reduced by the fact that the arms are made hollow. This is because the side walls of an arm surrounding the cavities have essentially the same load-bearing capacity as a solid arm of the same dimensions, since the load-bearing capacity is primarily determined by the height of the arm in the direction of load. In this respect, the hollow design of the arms does not have a negative effect on the strength of the corner element or the rigidity of a frame construction comprising such a corner element.

The present hollow design of the two arms of the corner element according to the invention is used in particular to reduce weight. Due to the reduced weight, the corner element is easier to handle, which is an advantage when assembling and dismantling a frame construction comprising such a corner element. Furthermore, the hollow design of the arms leads to material savings, which in turn reduce costs.

According to a further preferred embodiment of the invention, at least the arms of the corner element are formed from stamped and / or bent sheet metal parts. The entire corner element is advantageously formed from stamped and / or bent sheet metal parts. Because stamped / bent parts made of metal are easy and therefore inexpensive to manufacture. To form the corner element, the punched and / or bent sheet metal parts only need to be joined. The joining can be effected, for example, by means of a welded connection. As an alternative or in addition, the sheet metal parts can be non-positively and / or positively connected, for example via a toothing. For this purpose, recesses can be provided on the side edges of the metal sheets, which lead to the formation of tongues, which in turn can be inserted into recesses on the side edges of the other metal sheets and vice versa. Furthermore, slot-shaped recesses for receiving such tongues can be provided in the side walls of the metal sheets. The tongues that can be inserted into recesses or recesses have the advantage that the sheet metal parts can be put together more precisely before they are fixed.

A simple and thus inexpensive manufacture of a corner element can also be achieved if, according to an alternative preferred embodiment of the invention, at least the arms of the corner element are formed from pipe sections. For example, sections of a square tube that already has four side walls that enclose a cavity can be used to form the arms. In addition, pipe sections with more complex cross-sections can be used, since the cavity of an arm can also be enclosed by more than four side walls.

For example, pipe sections can be used which have a hollow space which runs at an angle in cross section and which is enclosed by six side walls of the pipe. Ideally, a pipe cross-section is selected that is adapted to the cross-section of the hollow profile to be connected in each case. Because then the connection of the hollow profile to the corner element can be effected via a simple plug-in connection in that one end of the hollow profile is slipped onto the arm of the corner element or inserted into its cavity. An additional fixation can be effected by a subsequent screw connection.

In a frame construction with several frames, for example with a floor and a ceiling frame, other corner elements can be used in the floor frame than in the ceiling frame. In particular, the corner elements can differ with regard to the cross-sections of their hollow arms. The cross-section or the cross-sectional profile of an arm is preferably adapted to the respective cross-sectional profile of the hollow profile to be connected. The use of different hollow profiles can in turn result from the different functions of the frames. For example, regular drainage must be provided in the area of a ceiling frame. If this is to be effected via the hollow profiles of the ceiling frame arranged on the edge, these must be equipped with a corresponding cross-section. In contrast, the hollow profile of a floor frame can be designed much more simply.

According to the invention, the arms of a corner element according to the invention are connected via a base part which, alone or in conjunction with the arms, encloses a further cavity. The actual "corner" is therefore also made hollow. As a result, the weight of the corner element and of a frame construction having the corner element can be further reduced. The cavity extends preferably perpendicular to the plane that is spanned by the two arms lying at right angles to one another. Furthermore, the cavity preferably has an essentially square cross section.

Furthermore, the base part of the corner element is formed from a first and a second angle, with the legs of the first angle preferably also forming side walls of the arms and the second angle being attached to the first angle in such a way that its legs together with the first angle represent the Enclose the base part limited cavity. This configuration of the base part enables the corner element to be produced exclusively from punched and / or bent sheet metal parts that only need to be joined. The joining takes place again via a welded connection, in addition the sheet metal parts can be interlocked with one another. The toothing creates a form fit that simplifies the positioning of the sheet metal parts with respect to one another. If the first angle of the base part at the same time forms side walls of the two arms of the corner element, this has a positive effect on the strength of the corner element or the rigidity of the frame construction having the corner element. Furthermore, a corner element assembled exclusively from stamped / bent parts can be produced simply and inexpensively.

According to the invention, the cavity of the corner element enclosed by the base part alone or in conjunction with the arms is covered at at least one front end by a plate which has at least one recess and / or recess. The plate covering the cavity causes the corner element to be stiffened. In addition, a contact surface is created which can be used, for example, to contact a correspondingly designed surface on a support profile of a frame structure. The at least one recess and / or recess is used to lead through lines, in particular power lines or water lines, which in this way can be integrated into the wall, floor and / or ceiling construction. At least in the area of the recesses and / or cutouts, the cavity is therefore not covered by the plate.

Insofar as a distinction is made here between recesses and recesses, recesses are not understood to mean recesses that are enclosed by material on all sides, but rather those that open towards at least one edge area. To form a recess, for example, a corner area of a rectangular or square plate can be notched so that the plate has an angular shape when viewed from above.

In a further development of the invention, it is proposed that the base part have a region projecting beyond the arms on at least one end face. This means that the base part has an area which at least on one side projects beyond the plane that is spanned by the two arms lying at right angles to one another. Such an area has the advantage that further profiles, such as vertically extending support profiles, can be connected to it. Furthermore, such an area can be used as a spacer if, for example, several frame structures are to be arranged one above the other. In the case of a base part formed from two angles, the area protruding beyond the arms can be at the first angle and / or at the second

Be formed angle. In the case of a base part formed from a pipe section, its height can be selected such that the pipe section as a whole projects beyond the arms or only individual side walls or side wall areas are drawn higher than the arms.

In a further development of the invention, it is proposed that a third arm be arranged at right angles to the first and second arm of the corner element, which has at least four longitudinally extending side walls which enclose a cavity. In this embodiment already mentioned at the outset, the corner element enables the connection of a further hollow profile, in particular a support profile for connecting a floor and a ceiling frame. The proposed three-armed corner element has connection elements in all three spatial directions and can thus be used to form corners in which three construction levels meet. This can be, for example, the construction levels of two walls and a ceiling or two walls and a floor.

According to a preferred embodiment of the invention, the third arm is formed from a first and a second angle, with the legs of the second angle each being angled again at their ends and the second angle preferably being attached to the first angle in such a way that its Legs together with the first angle enclose the cavity of the third arm. In this case, the cavity has an angular cross-section. The use of two angles to form the third arm has the advantage that the third arm can also be made from stamped and / or bent sheet metal parts. The sheet metal parts only have to be joined, the sheet metal parts preferably being welded for a permanent connection. As an alternative or in addition, the angles can be connected in a non-positive and / or form-fitting manner via tongues which are inserted into recesses and / or recesses in the respective other angle.

It is also proposed that the third arm has an angular end section for contact with angular side surfaces of the base part. The third arm can accordingly be supported on the base part via the angular end section. This has a favorable effect on the rigidity of the corner element and of a frame construction having such a corner element. In particular, the risk of kinking can be reduced if the third arm is used to connect a support profile to connect a floor and a ceiling frame. To train the angular end portion, the first angle of the third arm is preferably formed longer than the second angle.

The cavity of the third arm is preferably covered at one end by a plate which has at least one recess and / or recess. Lines, in particular power lines or water lines, can be laid through the recess and / or cutout. At the same time, the plate forms a further contact surface via which the third arm is additionally supported on the base part. Thus, the plate of the third arm also increases the rigidity of the corner element.

At least one side wall of an arm and / or of the base part advantageously has at least one recess for receiving a fastening means. The fastening means can in particular be a screw. In order to enable the compensation of manufacturing and / or assembly tolerances, the recess for receiving the fastening means is preferably designed in the form of an elongated hole.

The connection of a hollow profile to the corner element is preferably effected by plugging one end of the hollow profile onto one of the arms of the corner element. Then the connector is fixed with screws. In this way, a stable frame structure can be set up quickly and easily, which - if necessary - can also be quickly and easily dismantled. In order to achieve a certain rigidity of the construction via the plug connection, the contours to be plugged into one another are largely adapted to one another.

To the proposed corner element a hollow profile of a frame structure of the aforementioned DE 10 2012 103 719 A1 To be able to connect, at least one arm of the corner element preferably has an outer contour that is rectangular or angular in cross section. An outer contour of an arm which is rectangular in cross section can be connected in a simple manner to a hollow profile of a floor frame of the known frame structure, since this has an inner contour which is rectangular in cross section. The hollow profile is simply attached to the arm for this purpose. In contrast, an outer contour of an arm with an angular cross-section enables the connection of a hollow profile of a ceiling frame which has an inner contour with an angular cross-section.

Furthermore, a frame construction with a corner element according to the invention is proposed. In addition to the corner element, the frame construction includes at least one hollow profile that is made of a metallic material and / or has an end that is pushed onto an arm of the corner element, so that the hollow profile preferably completely encloses the arm. The arm of the corner element is therefore not visible - at least from the inside of the later room. If the hollow profile also comes to lie flush with respect to a side wall of the base part to which a further hollow profile is connected via a further arm, the two hollow profiles can be brought together to form an inner corner. The base part also remains invisible in this case. In this way, a frame structure is created that meets high visual demands.

The same also applies to the connection of a third hollow profile to a third arm of the corner element. This can also be brought up to the other two hollow profiles in such a way that at least the third arm is completely covered. The third hollow profile preferably has an angular end section which covers the base part and / or an angular end section of the third arm for support on the base part. The angular end section of the third hollow profile ensures that the corner element built into a frame structure does not appear at all.

The hollow profile of the proposed frame construction preferably has at least one longitudinal structure extending in the longitudinal direction of the profile and starting from an outer surface of the profile, which is designed as a longitudinal elevation. The at least one longitudinal structure that rises above the outer surface of the profile can be used to abut and / or fasten filling elements of the frame construction. A plurality of such longitudinal structures are preferably provided, which are arranged on one side or on different sides of the profile outer surface. For example, the hollow profile can have a substantially rectangular cross-section and have longitudinal elevations that are arranged at a distance from one another and run parallel to one another on one side of the profile outer surface, so that a groove for receiving a panel or the like is formed. Since there is an edge-side hollow profile of a frame, for example a floor or ceiling frame, usually not only filling elements for forming a floor or ceiling surface, but also filling elements to be connected to form a wall surface, at least one longitudinal structure in the form of an elevation is preferably arranged on two corners of the outer profile surface of the hollow profile. In addition, longitudinal structures in the form of longitudinal grooves can also be incorporated into the profile outer surface of the hollow profile. Hollow profiles are preferably used to form the frame structure, such as those mentioned in the introduction DE 10 2012 103 719 A1 to be discribed.

Since a primary aim of the invention is to increase the rigidity of such a frame structure, at least the corner element and the hollow profile of the frame structure connected to the corner element are preferably made of steel. This is because steel has a significantly higher dimensional stability or rigidity compared to a light metal such as aluminum. The higher weight of steel is compensated for by the use of hollow profiles and largely hollow corner elements. In this respect, the use of steel does not have a detrimental effect on the manageability of the individual elements of the frame structure. A quick assembly and dismantling of the construction is thus still guaranteed.

The proposed plug-in connection of the individual elements of the frame construction, by means of which the elements are initially put together, also has an advantageous effect in this context. They are then screwed together to effect a final fixation. However, as long as the screw of a screw connection is not firmly tightened, the elements screwed together can be moved towards one another, for example to correct angle errors. In addition, a screw connection can be loosened non-destructively, so that a frame structure that has been erected can be dismantled and rebuilt elsewhere.

The proposed frame construction therefore forms a kit that is particularly suitable for erecting modular, temporary structures. For example, dwellings such as emergency shelters and the like can be built with the kit. The high stability of the frame construction also allows a stacked arrangement, so that even multi-storey buildings can be realized.

• Fig. 1a-1f jeweils eine räumliche Darstellung einer Eckausbildung einer Rahmenkonstruktion zur Ausbildung eines Bodenrahmens unter Verwendung eines erfindungsgemäßen Eckelements von der Rauminnenseite her betrachtet, ausgehend von einer Explosionsdarstellung des Eckelements (Fig. 1a) bis hin zu einem Eckelement mit drei angeschlossenen Hohlprofilen (Fig. 1f),
• Fig. 2a-2f jeweils eine räumliche Darstellung der Eckausbildung der Fig. 1a-1f, jedoch diesmal von außen betrachtet,
• Fig. 3a-3e jeweils eine räumliche Darstellung einer Eckausbildung einer Rahmenkonstruktion zur Ausbildung eines Deckenrahmens unter Verwendung eines erfindungsgemäßen Eckelements von der Rauminnenseite her betrachtet, ausgehend von einer Explosionsdarstellung des Eckelements (Fig. 3a) bis hin zu einem Eckelement mit drei angeschlossenen Hohlprofilen (Fig. 3e),
• Fig. 4a-4e jeweils eine räumliche Darstellung der Eckausbildung der Fig. 3a-3e, jedoch diesmal von außen betrachtet,
• Fig. 5a-5c jeweils eine räumliche Darstellung der Elemente eines dritten Arms für ein erfindungsgemäßes Eckelement, wie in den Fig. 1c, 1d, 2c, 2d, 3c und 4c gezeigt,
• Fig. 6a-6d jeweils eine räumliche Darstellung einer weiteren Ausführungsform eines nicht erfindungsgemäßen Eckelements für einen Deckenrahmen, von außen (Fig. 6a) sowie von der Rauminnenseite her betrachtet (Fig. 6b-6d) und
• Fig. 7a-7c jeweils eine räumliche Darstellung einer weiteren Ausführungsform eines nicht erfindungsgemäßen Eckelements für einen Bodenrahmen, von außen (Fig. 7a) sowie von der Rauminnenseite her betrachtet (Fig. 7b und 7c).

The fact that the proposed frame structure can be dismantled into individual elements, in particular into profiles and corner elements, simplifies transport and storage. The individual elements can be packed and shipped in containers, for example, so that the proposed frame construction can be used worldwide. In addition, no specially trained personnel is required for on-site assembly. Preferred embodiments of the invention are explained in more detail below with reference to the accompanying drawings. These show:

• Figures 1a-1f in each case a spatial representation of a corner formation of a frame construction for the formation of a floor frame using a corner element according to the invention viewed from the inside of the room, based on an exploded view of the corner element ( Fig. 1a ) up to a corner element with three connected hollow profiles ( Fig. 1f ),
• Figures 2a-2f each a spatial representation of the corner formation of the Figures 1a-1f , but this time viewed from the outside,
• Figures 3a-3e in each case a spatial representation of a corner formation of a frame construction for the formation of a ceiling frame using a corner element according to the invention viewed from the inside of the room, based on an exploded view of the corner element ( Fig. 3a ) up to a corner element with three connected hollow profiles ( Fig. 3e ),
• Figures 4a-4e each a spatial representation of the corner formation of the Figures 3a-3e , but this time viewed from the outside,
• Figures 5a-5c each a three-dimensional representation of the elements of a third arm for a corner element according to the invention, as in FIGS Figures 1c, 1d , 2c, 2d , 3c and 4c shown,
• Figures 6a-6d each a spatial representation of a further embodiment of a corner element not according to the invention for a ceiling frame, from the outside ( Figure 6a ) as well as from the inside of the room ( Figures 6b-6d ) and
• Figures 7a-7c each a three-dimensional representation of a further embodiment of a corner element not according to the invention for a floor frame, from the outside ( Figure 7a ) as well as from the inside of the room ( Figure 7b and 7c ).

Detailed description of the drawings

A first preferred embodiment of a corner element according to the invention is first described in connection with the Figures 1a-1f , the Figures 2a-2f as well as the Figures 5a-5c described. The corner element 1 shown in these figures is used to form a lower corner of the room. It has a first arm 4 and a second arm 5 arranged at right angles to the first arm 4 for the connection of hollow profiles 2, 3, which together with the corner element 1 form a frame corner of a floor frame.

Like the one in particular Figures 1a, 1b and 2a, 2b can be seen, the corner element 1 is made of several stamped and partially bent sheet metal parts. From the exploded views of the Fig. 1a and 2a it can be seen that two angles 8.1, 8.2 form a base part 8. For this purpose, the angles 8.1, 8.2 are attached to one another in such a way that the legs of the angle 8.1, 8.2 enclose a cavity 9. The cavity 9 is also covered by a plate 10 which has a recess 12 and several recesses 11 through which lines (not shown) can be passed.

The legs of the first angle 8.1 are made longer than those of the second angle 8.2 in order to form a side wall of an arm 4, 5 of the corner element 1 at the same time. A U-shaped sheet metal part is attached to each of these side walls in such a way that cavities 6, 7 are formed.

Due to the cavities 6, 7 and 9, the weight of the corner element 1, which in the present case is made of steel, can be kept comparatively low. Furthermore, lines (not shown) can be passed through the cavities 6, 7 and 9, so that installations can be accommodated in the frame structure.

The several stamped and / or bent sheet metal parts of the corner element 1 are in the present case connected in a form-fitting and material-locking manner. For the form-fitting connection, recesses 22 are provided on the side edges, which lead to the formation of tongues 21 which can be inserted into recesses 22 or slot-shaped recesses 23 of adjacent sheet metal parts. After the sheet metal parts have been put together in this way, they are welded so that a corner element 1 according to the Figure 1b and 2 B is trained.

In order to be able to connect a third hollow profile 13 which is arranged perpendicular to the hollow profiles 2, 3 of the floor frame (see Figures 1e, 1f and 2e, 2f), the corner element 1 has a third arm 14. Like the one in particular Figures 5a to 5c As can be seen, the third arm 14 is composed of a first angle 14.1 and a second angle 14.2, which are placed against one another in such a way that they jointly delimit a cavity 15. The cavity 15 is covered by a plate 16 which has a recess 18 and recesses 17 for the passage of lines (not shown). The first angle 14.1 is made longer than the second angle 14.2, so that the third arm 14 has an angular end section 24 which can be brought into contact with the base part 8 of the corner element 1 (see FIG Figures 1c, 1d as well as 2c, 2d). The third arm 14 is thus additionally supported on the base part 8 via the angular end section 24. The actual support takes place via the plates 10 and 16 resting against one another.

The angles 14.1 and 14.2 of the third arm 14 also have recesses 22 and tongues 21 on their side edges in order to be first plugged together and then welded. The same applies to the plate 16, the tongues 21 of which can be inserted into slot-shaped recesses 23 of the first angle 14.1.

After the assembly of the third arm 14, the corner element 1 can be connected to the hollow profiles 2, 3 and 13. For this purpose, these are each attached to an arm 4, 5 and 14 of the corner element 1 (see Fig. 1e and 2e ) so that they completely cover arms 4, 5 and 14 (see Fig. 1f and 2f ). While the hollow profiles 2 and 3 are used to form a floor frame, the hollow profile 13 can be used to connect the floor frame to a ceiling frame. Such is in parts the Figures 3a-3e and 4a-4e, which are described below. The hollow profiles 2, 3 forming the base frame have an essentially rectangular cross section in the present case. Starting from the profile outer surface, longitudinal structures rise in the longitudinal direction of the profile in the form of longitudinal elevations 25 (see Fig. 1f and 2f ), which are used to connect filling elements (not shown), such as wall and floor panels.

The corner element 1 of the Figures 1a-1f and 2a-2f is with the corner element 1 of Figures 3a-3e and 4a-4e combinable. Because this serves to form an upper corner of the room. This means that this corner element 1 is part of a ceiling frame.

Analogously to the corner element 1 described above, the one in the Figures 3a-3e and 4a-4e corner element 1 shown three arms 4, 5 and 14, wherein a hollow profile 2, 3 and 13 can be connected to each arm 4, 5 and 14. While the hollow profiles 2, 3 are in turn part of the ceiling frame, the hollow profile 13 can be the same profile that is used in the Figures 1e, 1f as well as 2e, 2f is shown (see Figures 3d, 3e as well as 4d, 4e).

The corner element 1 is in turn composed of individual stamped and / or bent sheet metal parts, which for this purpose are first inserted into one another and then welded. Correspondingly, here too the sheet metal parts have recesses 22 and tongues 21 on their side edges. Furthermore, slot-shaped recesses 23 for receiving tongues 21 are formed in the side walls of the sheet metal parts. A first angle 8.1 together with a second angle 8.2 forms a base part 8, the legs of the first angle 8.1 at the same time forming side walls of the arms 4 and 5. Furthermore, the angles 8.1 and 8.2 enclose a cavity 9 which is covered by a plate 10 which has a recess 12 and recesses 11 for the passage of lines (not shown). To form the arms 4 and 5, instead of U-shaped sheet metal parts, those are provided that are angled several times so that, together with the legs of the first angle 8.1, they each delimit a cavity 6, 7 with an L-shaped cross section (see FIG Figure 3b ). The special cross-sectional shape is due to the cross-section of the hollow profiles 2 and 3, which at arms 4 and 5 are to be connected (see Figures 3d, 3e as well as 4d, 4e). Because these not only serve to accommodate filling elements to form a ceiling, but must also ensure drainage. For this purpose, longitudinal structures in the form of longitudinal elevations 25 are formed on the hollow profiles 2 and 3. The longitudinal structure 25 arranged on the upper side forms, with a further longitudinal structure, a gutter 26 which serves as a rain gutter. Another laterally arranged longitudinal structure 25 forms a support surface for the filling elements of the ceiling construction.

In the Figures 3a, 3b and 4a, 4b, the corner element 1 is again shown only with two arms 4, 5. First the Figure 3c , 3d and FIGS. 4c, 4d show the third arm 14. The third arm 14 is identical to the third arm 14 of the corner element 1 of FIG Figures 1a-1f and 2a- 2f built so here again on the Figures 5a to 5c as well as the associated description can be referenced.

The hollow profiles 2, 3 and 13 are slipped onto the arms 4, 5 and 14 of the corner element 1 (see Fig. 3d and 4d ) and then screwed to the corner element 1 by means of screws 20 (see Fig. 3e ). In the arms 4, 5, 14, recesses 19 are provided for receiving the screws 20 (see FIG Figure 3b ).

Corresponding recesses 19 for receiving screws 20 also have the corner element 1 of the Figures 1a-1f or 2a-2f. Because the connection of the corner elements 1 with the respective hollow profiles 2, 3 and 13 is achieved by plugging and screwing, so that the construction of a frame structure is possible everywhere without a large amount of tools. In contrast, the sheet metal parts of the corner elements 1 are already joined at the factory so that they do not have to be assembled and welded on site. The sheet metal parts already joined at the factory include at least the parts that are required to form the base part 8 and the arms 4, 5. The third arm 14 can be prefabricated in such a way that it only has to be screwed to the base part 8 on site. Because without the third arm 14, the corner element 1 can be stored and transported in a more space-saving manner.

Another embodiment of a corner element 1 not according to the invention is the Figures 6a-6d and 7a-7c to be found, whereby the Figures 6a-6d a Corner element 1 for a ceiling frame and the Figures 7a-7c show a corner element 1 for a floor frame. Both corner elements 1 differ from the previously described ones in that they are essentially composed of pipe sections. A first pipe section, which is square in cross section, forms the base part 8 in each case (see FIG Figure 6a and 7a ). Two further pipe sections are attached to each of these to form the arms 4, 5, so that they enclose a right angle. Tongues 21, which can each be inserted into recesses 22 of the corresponding base part 8 (see FIG Figure 6b and 7b ). The base part 8 of the corner element 1 for the floor frame also has slot-like recesses 23 into which the tongues 21 can be inserted (see FIG Figure 7b ). After the plug-in connections have been made, the pipe sections are each welded to the base part 8.

The cavity 9 of the base part 8 is covered in each case by a plate 10 which has recesses 11 for receiving screws and for leading through lines (not shown). The plate 10 is also welded to the base part 8 in each case. The recesses 11 for receiving screws are used to connect to the hollow profile 13. Because the corner elements 1 of the Figures 6a-6d and 7a-7c do not have a third arm 14 for connecting the hollow profile 13. The connection or the connection is established directly via the plate 10. For this purpose, the hollow profile 13 has a corresponding plate 27 (see Figures 6b-6d ).

The connection of the hollow profiles 2, 3 takes place in turn via a plug-in connection in that the hollow profiles 2, 3 are plugged onto the arms 4, 5 (see FIG Figure 6c ). The fixation takes place via a subsequent screw connection. This applies to both corner element 1 of the ceiling frame ( Figures 6a-6d ), as well as for corner element 1 of the floor frame ( Figures 7a-7c ). Using the example of corner element 1 for the floor frame, a completely assembled frame corner is shown as an example (see Figure 7c ). The screw connection is effected by means of the screws 20.

Furthermore, modifications are possible that relate in particular to the cross-sectional shapes of the arms of a corner element and the hollow profiles to be connected thereto. Two arms are always provided, a third arm is optional.

List of reference symbols

• 1 corner element
• 2 hollow profile
• 3 hollow profile
• 4 arm
• 5 arm
• 6 cavity
• 7 cavity
• 8 base part
  • 8.1 first angle
  • 8.2 second angle
• 9 cavity
• 10 plate
• 11 recess
• 12 recess
• 13 hollow profile
• 14 arm
  • 14.1 first angle
  • 14.2 second angle
• 15 cavity
• 16 plate
• 17 recess
• 18 recess
• 19 recess
• 20 screw
• 21 tongue
• 22 recess
• 23 recess
• 24 end section
• 25 longitudinal elevation
• 26 gutter
• 27 plate

Claims (12)

1. A corner element (1) of multi-part configuration for a frame construction, comprising at least one hollow profile (2, 3), wherein the corner element (1) is made of a metallic material and has two arms (4, 5) lying at a right angle to each other and for connecting each of a hollow profile (2, 3), wherein the arms (4, 5) each have at least four side walls extending in longitudinal direction and enclosing a cavity (6, 7), wherein the arms (4, 5) are connected by a base part (8), which alone or in connection with the arms (4, 5), encloses a cavity (9), which preferably has an essentially square cross-section, wherein the cavity (9) enclosed by the base part (8) alone or in connection with the arms (4, 5) is covered at at least one front end by a plate (10) which has at least one clearance (11) and / or recess (12),
   characterized in that the base part (8) is formed from a first and a second angle (8.1, 8.2), which are joined to each other by means of a welding connection.
2. The corner element (1) according to claim 1, characterized in that at least the arms (4, 5) are formed from punched and / or bent sheet metal parts or from pipe sections.
3. The corner element (1) according to any one of the preceding claims, characterized in that the legs of the first angle (8.1) simultaneously form side walls of the arms (4, 5) and the second angle (8.2) is attached to the first angle (8.1) in such a way that its legs together with the first angle (8.1) enclose the cavity (9).
4. The corner element (1) according to any one of the preceding claims, characterized in that the base part (8) has at at least one font end an area which is higher than the arms (4, 5) and which is preferably formed at the first angle (8.1) and / or at the second angle (8.2).
5. The corner element (1) according to any one of the preceding claims, characterized in that at a right angle to the first and to the second arm (4, 5) for the connection of a further hollow profile (13) a third arm (14) is arranged, which has at least four longitudinally extending side walls that enclose a cavity (15).
6. The corner element (1) according to claim 5, characterized in that the third arm (14) is formed from a first and a second angle (14.1, 14.2), wherein preferably the legs of the second angle (14.2) are angled at their ends each again and wherein further preferably the second angle (14.2) is attached to the first angle (14.1) so that its legs together with the first angle (14.1) enclose the cavity (15).
7. The corner element (1) according to claim 5 or 6, characterized in that the third arm (14) has an angular end section for applying on angular side surfaces of the base part (8), wherein preferably for the formation of the angular end section the first angle (14.1) of the third arm (14)is formed longer than the second angle (14.2).
8. The corner element (1) according to any one of claims 5 to 7,
   characterized in that the cavity (15) is covered at one front end by a plate (16) which has at least one clearance (17) and / or recess (18).
9. The corner element (1) according to any one of the preceding claims,
   characterized in that at least one side wall of an arm (4, 5, 14) and / or the base part (8) has at least one clearance (19), preferably in the form of a long hole, for holding a fastener, in particular a screw (20).
10. The corner element (1) according to any one of the preceding claims,
    characterized in that at least one arm (4, 5, 14) has an outer contour, which in the cross-section is essentially rectangular-gor angular.
11. A frame construction having a corner element (1) according to one of the preceding claims and at least one hollow profile (2, 3, 13), which is made of a metallic material and / or has an end which is inserted into an arm (4, 5, 14) of the corner element (1), so that preferably the hollow profile (2, 3, 13) completely encloses the arm (4, 5, 14).
12. The frame construction according to claim 11, characterized in that the hollow profile (2, 3,13) has at least one longitudinal structure extending in the longitudinal direction of the profile and starting from an outer profile surface, which is formed as a longitudinal elevation.

Images