System for forming a supporting structure of a car body of a vehicle, supporting structure, car body and vehicle

Abstract

System (1) for forming a supporting structure (2) of a car body (102) of a vehicle, in particular a rail vehicle (100), - having a profile element (20) ▪ an element profile axis (23) extending in an element profile direction (22), an element profile plane (24) extending perpendicularly thereto, and an element vertical axis (25) extending therein, ▪ a first element stop (32), a first welding bevel (34), a second element stop (33), and a second welding bevel (35), - and having a profile component (40) ▪ a component profile axis (43) extending in a component profile direction (42), a component profile plane (44) extending perpendicularly thereto, and a component vertical axis (45) extending therein, ▪ a first component radius surface (47) running perpendicular to the component profile plane (44) and having a first component radius (48), ▪ a second component radius surface (49) running perpendicular to the component profile plane (44) with a second component radius (50), - wherein the first element stop (32) and the second element stop (33) are provided on an element connecting section (21) of the profile element (20), and wherein the first component radius surface (47) and the second component radius surface (49) are provided on a component connecting section (41) of the profile component (40), • so that, by means of joint alignment of the element profile direction (22) and the component profile direction (42), and by means of normal force-dependent contact of the first element stop (32) and the first component radius surface (47) and of the second element stop (33) and the second component radius surface (49), the profile element (20) and the profile component (40) can assume a plurality of different relative positions (3, 4) to one another, each with an individual angle (5) between the element vertical axis (25) and the component vertical axis (45) while forming a statically at least certain body contact, ▪ wherein the first welding bevel (34) with the first component radius surface (47) forms a first welding notch (6) for a first weld seam (8) and the second welding bevel (35) with the second component radius surface (49) forms a second welding notch (7) for a second weld seam (9), ▪ wherein the first component radius (48) and the second component radius (50) have an identical component center point (51).

Description

The present invention relates to a system for forming a supporting structure of a vehicle body of a vehicle, in particular of a rail vehicle, and to such a supporting structure. Furthermore, a carriage body is described which is provided at least in parts by means of such a system.It is known that supporting structures for car bodies of vehicles, in particular rail vehicles, are assembled with the aid of different profiles. Such profiles are semifinished products which can preferably be produced by the extrusion process. During the construction process, an individual design with a plurality of different profiles is defined for each type of car body. Accordingly, it is necessary to examine and select each individual profile in terms of maximum and continuous mechanical strength, environmental suitability, design aspects, cost, etc.For example, WO 2013 / 077 192 A1 discloses a vehicle body of a rail vehicle which comprises a base frame, a lateral body structure, a gable-side body structure and a roof body structure, in the interior of which an interior material is provided which has the function of improving the thermal and sound insulation and the construction. By welding together different profiles in a transition region between roof body structure and side body structure, a corresponding connection point between side and roof or between side and floor is defined.WO 00 / 56 589 A1 describes extruded sheet-like profiles with which it is possible to produce sheet-like structures running straight, kinked and polygonally. For this purpose, a longitudinally running U-shaped recess is formed on one of the side edges of an extruded profile, which recess is bounded by two webs. One of the webs has a cylindrical bead at its free end. This can engage in a groove on the other of the two side edges of a further extruded profile, so that the two extruded profiles can be pivoted about the bead received in the groove.DE 10 2007 035 772 A1 describes a carriage body for a rail vehicle having a supporting structure made of individual extruded profiles. The end faces of the extruded profiles can engage in one another.Such constructions of car bodies of rail vehicles must always be constructed in detail in a final position and calculated with regard to requirements. This also relates in particular to the semifinished products used for this purpose.It is therefore an object of the present invention to provide a system for forming a supporting structure of a car body, whereby the construction process and the selection of semi-finished products are facilitated, in particular wherein an effort of defining a supporting structure of a car body is reduced, wherein the car body has a simple and robust structure and at the same time brings about an improvement in the design possibilities and the effort in a design of a vehicle or a vehicle platform.The above object is achieved by a system for forming a support structure of a vehicle body, in particular a rail vehicle, according to claim 1 and by a support structure comprising such a system according to claim 12. Alternatively or additionally, a car body with the above supporting structure according to claim 14 and a vehicle having such a car body according to claim 15 for achieving the object are proposed.The system has a profile element and a profile component connectable thereto for forming the supporting structure. By connecting the profile element and the profile component to one another by welding, the supporting structure is formed. The support structure can have a multiplicity of profile elements and profile components connected to one another by welding, by riveting and / or by screwing, with the result that the support structure forms the vehicle body at least in parts.According to one embodiment, the profile component and / or profile element are to be regarded as being equivalent and / or replaceable with respect to a technical function. In particular, the use of the different terms "profile element" and "profile component" also serves the purpose of being able to differentiate them in the description of the present disclosure. Additionally or alternatively, however, it would also be possible in this context to refer to a first profile element, a second profile element, a further profile element and / or a first, second, further profile component.The profile element thus has an element profile direction which extends in an element profile axis. Perpendicular thereto, an element profile plane can be defined with an element vertical axis running therein and a corresponding element vertical direction and with an element transverse axis running in the plane and a corresponding element transverse direction.The profile element can be subdivided with respect to the element profile plane into an element connecting section and an element body adjoining the latter. The element connecting section is designed to be able to form, engage and / or support a welded connection with the profile component and / or with a further (additional) profile element or component.The profile element has, in the region of the element connecting section-in relation to the element profile plane-a first element stop, a first welding chamfer, a second element stop and a second welding chamfer, wherein in particular in the element transverse direction and / or in the element vertical direction between the first element stop and the first welding chamfer a first element gas pocket is provided and / or between the second element stop and the second welding chamfer a second element gas pocket is provided.An element contour of the profile element is thus designed in the element profile plane in such a way that the first element stop is arranged adjacent to the first welding chamfer. In particular, the first element stop is adjacent to the first element gas pocket and this is in turn arranged adjacent to the first welding chamfer. In particular, an element surface of the profile element is designed in such a way that a surface section of the first element stop merges-optionally while making an angle or bending-into a surface section of the first element gas pocket, wherein the latter merges in turn-optionally while making an angle or bending-further into a surface section of the first welding chamfer. Accordingly, the first element gas pocket can be provided lying in the element profile plane between the first element stop and the first welding chamfer. The foregoing applies either as an alternative or additionally to the second element stop, to the second welding chamfer, and optionally to the second element gas pocket.Due to the nature of the profile element as a profile-like semi-finished product, the first element stop, the first element gas pocket and the first element welding chamfer, and / or the second element stop, the second element gas pocket and the second element welding chamfer extend at least over a part of an overall length in the profile direction of the profile element, for example over more than 50% of the overall length, preferably completely over the overall length.The profile component also has a component profile direction which extends in a component profile axis. Perpendicular to this, a component profile plane can be defined with a component vertical axis running therein and a corresponding component vertical direction and with a component transverse axis running in the plane and a corresponding component transverse direction.The profile component has, on a component connecting section in the component profile plane, a first component radius surface with a first component radius and a second component radius surface with a second component radius. The component connecting section adjoins a component body and serves for forming a welded connection to the profile element and / or to an additional profile element. The first component radius and the second component radius have an identical component center point.Preferably, the first component radius and the second component radius are curved in the same direction in the component profile plane, so that the component radii in the component connecting section are both formed convexly or both concavely with respect to the component body. In particular, the component connecting portion can be formed as a rounded, preferably partially circular, outer surface which forms and / or carries the first component radius surface and the second component radius surface.Additionally or alternatively, the profile component is configured such that the first component radius surface, the first component radius, the second component radius surface, the second component radius and / or further component radius surfaces, component radii, connecting sections extend / extend at least over part of an overall length in the component profile direction of the profile component, for example over more than 50% of the overall length, preferably completely over the overall length.In particular, the surface details, specific shapes, bulges, projections, corners, curvatures, radii and / or further two-dimensional geometric features of the profile element, of the profile component and / or further profile elements, profile components and / or additional profile elements described in the context of the present disclosure are to be understood preferably and in particular exclusively lying in a respective profile plane, in particular with respect to a respective profile cross section.Furthermore, both the first element stop and the second element stop are provided on the element connecting portion in such a way, and the first component radius surface and the second component radius surface are provided on a component connecting portion of the profile component in such a way that the profile element and the profile component can assume a plurality of different relative positions, each with an individual angle between element vertical axis and component vertical axis, forming a statically at least determined body contact with one another. The first welding chamfer then forms a first welding notch for a first welding seam with the first component radius surface, and the second welding chamfer forms a second welding notch for a second welding seam with the second component radius surface. In particular, the first welding notch and the second welding notch are oriented in the element / component profile direction and extend in particular over a substantial part, preferably over at least 30%, in particular over at least 50%, further preferably over at least 70%, of the profile length of the profile element and of the profile component.The plurality of different relative positions is on the one hand achieved in that, in order to achieve statically at least certain body contact, the element profile direction and the component profile direction are aligned identically and jointly. The profile element and the profile component can consequently be oriented such that the element profile axis and the component profile axis run parallel to one another, in particular are aligned and fall into one another.On the other hand, the plurality of different relative positions are made possible in that the first element stop with the first component radius surface and the second element stop with the second component radius surface each enter into a contact with normal force. In addition to the common alignment in the profile direction, the element connecting section and the component connecting section can be pressed against one another. By providing a normal force for this purpose-the profile element is pressed against the profile component-the first element stop bears against the first component radius surface and the second element stop bears against the second component radius surface. By now defining and assuming a desired and / or predetermined relative position of profile component and profile element by the statically at least determined contact, the desired relative position of profile element and profile component with respect to one another can be permanently fixed by applying a first weld seam in the first weld notch and / or by applying a second weld seam in the second weld notch.The term "statically at least determined" is to be understood in such a way that-in the presence of a normal force sufficient for this purpose-the profile element and profile component cannot slip and / or wobble relative to one another. In particular, the normal force between the profile element and profile component is selected such that the adhesion force caused thereby between the respective surfaces of the stops and the respective contact surfaces prevents slipping in the component / element transverse direction, component / element vertical direction and / or in the component / element profile direction. A person who is involved in assembling the profile element and profile component is able to determine and apply the forces necessary for this purpose. If desired, such a person would be able to identify and use necessary tools for establishing such a normal force (e.g. screw clamps, suitable clamps). The person in question would also ensure that no unusual relative forces, in particular acting in the component / element transverse direction, component / element vertical direction and / or in the component / element profile direction, can act on the profile element and / or profile component, so that the previously defined statically at least determined relative position of profile element and profile component is resolved or changed.According to one exemplary embodiment, the element connecting section forms a type of hinge, joint and / or rotation guide via the element stops for the component connecting section in such a way that the profile component is mounted in the element connecting section such that it can rotate about a profile axis-vice versa.The embodiment described above makes it possible for the first time to produce a supporting structure having a profile element and a profile component with different alignment configurations, wherein in each case the same types and / or embodiments of semifinished products, in particular of profile elements and / or profile components, can be used. In particular, it is made possible that a plurality of different positions within supporting structures can be depicted using identical semi-finished products. This reduces the number of semi-finished products and allows different boundary conditions in the development of different platforms for car bodies. For example, the profile element and the profile component can constitute a first supporting structure, wherein the profile element and the profile component can be aligned and welded to one another in a first relative position-in relation to the element / component profile plane. The first support structure formed in this way can now form a first section, for example of a floor or a roof of the car body. If, on the other hand, the profile element and the profile component are aligned and welded in a second relative position with respect to one another, a second supporting structure formed thereby can form a second section, for example of a floor or a roof of the car body. Furthermore, for example, the above-described relative positions differ in that the element vertical axis in the first relative position and the element vertical axis in the second relative position are inclined with respect to one another-in relation to the element / component profile plane, and the component vertical axis was assumed to be an invariable reference axis-and enclose a respectively different first angle and second angle.In this way, the advantage is achieved for the first time that the same type of profile element and profile component can be used as standard component for forming different supporting structures, in particular different supporting structures with different angles. This is accompanied by a reduction in the testing effort of semi-finished products for producing different supporting structures.According to one embodiment of the preceding exemplary embodiment, it is disclosed that the element connecting portion and / or the component connecting portion is formed such that the first welding notch and the second welding notch are spaced apart from one another by a profile welding distance, in particular wherein the profile welding distance is at least 20 mm, in particular at least 30 mm, preferably at least 50 mm and / or at least 50%, in particular at least 80%, preferably at least 100%, of an element width of the profile element and / or of a component width of the profile component. In particular, the profile welding distance is determined by the arrangement and a distance connected thereto between the first component radius surface and the second component radius surface and / or by the arrangement and a distance connected thereto between the first element stop and the second element stop.According to a further embodiment, the system can have an additional profile element, so that a supporting structure formed therewith is formed by at least one profile element, a profile component and the additional profile element. The additional profile element has, in particular analogously to the profile element, an additional element profile direction with an additional element profile axis, an additional element profile plane extending perpendicular thereto, an additional element transverse direction extending therein with an additional element transverse axis extending in this respect, and an additional element vertical direction extending in the additional element profile plane with an additional element vertical axis extending in this respect.Furthermore, the additional profile element is equipped on an additional element connecting section with a first additional element stop, a first additional element welding chamfer, in particular with a first additional element gas pocket arranged between the additional element stop and the additional element welding chamfer, and with a second additional element stop, a first additional element welding chamfer, in particular with a first additional element gas pocket arranged between the additional element stop and the additional element welding chamfer. In particular, the previously described configuration of the additional element connecting section takes place analogously and / or partially identically to the previously described element connecting section of the profile element.In addition to providing the additional profile element, the profile component is formed with a further component connecting section which-analogously to the component connecting section described above-has a third component radius surface running perpendicularly in each case to the component profile plane and having a third component radius and a likewise perpendicularly running fourth component radius surface having a fourth component radius.The additional element connecting section and the further component connecting section are formed and arranged in such a way, in particular both the first additional element stop and the second additional element stop are formed and provided on the additional element connecting section in such a way, and the third component radius surface and the fourth component radius surface are formed and arranged on the further component connecting section in such a way that the additional profile element and the profile component can assume a plurality of different relative positions with respect to one another, in each case at an individual angle between the additional element vertical axis and the component vertical axis, forming a statically at least determined body contact, wherein the first additional element welding chamfer with the third component radius surface forms a third welding notch for a third welding seam and the second additional element welding chamfer with the fourth component radius surface forms a fourth welding notch for a fourth welding seam. In order to achieve this, the additional profile element and the profile component can be aligned, in particular aligned, jointly with respect to the additional element profile direction and component profile direction, and wherein a normally force-loaded contacting of the first additional element stop and third component radius surface and of the second additional element stop and fourth component radius surface is established. The achievement of a defined, but adjustable relative position and of the statically at least determined body contact between the additional profile element and the profile component takes place in this case analogously to the establishment of the previously described body contact between the profile element and the profile component; accordingly, details of the preceding relevant disclosure can be transferred to the connection between the additional profile element and the profile component.The present exemplary embodiment enables the profile element to be connected to the first and the second element stop via the profile component to the additional profile element. The support structure formed in this way is formed at least from the profile element, the additional profile element and the profile component lying therebetween.Profile element and profile component are carrier-like semi-finished products, preferably produced by means of extrusion processes from an aluminum alloy, and thus each have a profile direction in which the structure of the respective profile element and / or profile component is substantially invariable. In the profile direction, a respective profile element and / or profile component has an identical cross section.Profile element, profile component, possible additional profile elements and / or additional profile components can be, for example, a profile-like support element having an, in particular complex, inner grid structure.Additionally or alternatively, it is conceivable that the profile element, profile component, possible additional profile elements and / or additional profile components is / are designed as a tube, strip, semi-finished product with an at least partially circular or annular cross section, or L, T, I carrier.Preferably, the profile element, profile component, possible additional profile elements and / or additional profile components are designed as double-walled extruded profiles made of an aluminum alloy. Double-walling can be achieved by providing essentially continuous wall regions running essentially in the vertical direction. These wall regions, which can be designated as profile walls, delimit a corresponding profile in the corresponding transverse direction. The term "substantially continuous" in this context means that these wall regions run continuously, in particular wherein interruptions, such as bores, recesses, incisions, are possible, however.According to one embodiment of the preceding exemplary embodiment, it is disclosed that the profile component is formed in such a way, in particular that the first and third component radius surfaces and / or the second and fourth component radius surfaces are arranged in such a way that the first welding notch and the third welding notch and / or the second welding notch and the fourth welding notch are spaced apart from one another by a supporting structure welding distance, in particular wherein the supporting structure welding distance is at least 20 mm, in particular at least 30 mm, preferably at least 50 mm and / or at least 50%, in particular at least 80%, preferably at least 100% of a component width of the profile component. In particular, the supporting structure welding distance is determined by the arrangement and a distance connected thereto between the first and third component radius surfaces and / or between the second and fourth component radius surfaces.As an alternative to the preceding exemplary embodiment - comprising the profile element, the profile component and the additional profile element, wherein the profile component comprises a first and second radius surface for contacting by the first and second element stop of the profile element and for forming the first and the second welding notch for the first and the second welding seam, and wherein the profile component further comprises a third and fourth radius surface for contacting by the first and the second additional element stop of the additional profile element and for forming the third and the fourth welding notch for the third and the fourth welding seam - an inverse construction principle of the system for forming the supporting structure with a profile element, profile component and an additional profile component is proposed:The additional profiled component has an additional component profiled axis extending in an additional component profiled direction, an additional component profiled plane extending perpendicularly thereto, and an additional component vertical axis extending therein, a first additional component radius surface extending perpendicularly to the additional component profiled plane and having a first additional component radius surface having a second additional component radius at a first component connecting portion.Furthermore, the profile element according to the inverse exemplary embodiment has, on a further element connecting section, in each case a third element stop, a third welding chamfer, and in particular a third gas pocket arranged therebetween, a fourth element stop, a fourth welding chamfer, and in particular a fourth gas pocket arranged therebetween. Consequently, the profile element is designed to connect the profile component and the additional profile component to one another, wherein respective stops are provided on the profile element for contacting corresponding radial surfaces of the profile component and of the additional profile component.Stops and radius surfaces are arranged and formed in such a way-analogously to the preceding exemplary embodiment-that, by means of joint alignment of the additional component profile direction and the element profile direction, and by means of normal-force-loaded contacting of the third element stop and the first additional component radius surface and of the fourth element stop and the second additional component radius surface, the additional profile component and the profile element can assume a plurality of different relative positions with respect to one another, each with an individual angle between the additional component vertical axis and the element vertical axis, forming a statically at least determined body contact, wherein the third welding chamfer with the first additional component radius surface forms a third welding notch for a third welding seam and the fourth welding chamfer with the second additional component radius surface forms a fourth welding notch for a fourth welding seam. It is explicitly disclosed that modes of action and preferred arrangements of the above-described exemplary embodiments can be transferred to the present inverse exemplary embodiment, so that it is conceivable, for example, to implement a supporting structure welding distance of the additional profile component of the present inverse exemplary embodiment according to the supporting structure welding distance of the additional profile element according to the above-described exemplary embodiment.According to a further, independent embodiment, at least one of the welding notches, in particular all welding notches, is configured for the introduction of a V or HV welding seam. Additionally or alternatively, at least one of the welding notches, in particular all welding notches, encloses / en an angle between respective welding chamfer and respective radius surface of more than 10°, in particular more than 30°, preferably more than 50°, and / or not more than 100°, in particular not more than 70°, preferably not more than 60°. Preferably, the angle at the notch base of the corresponding welding notch is to be taken into consideration.In particular, the welding notches are configured such that no stump portion is present in the sense of a stump or HY seam, and / or that the welding notch enables a stump seam.Furthermore, it is disclosed to configure at least one element, component, additional element and / or additional component stop, in particular all stops, in such a way that at least one of the welding bevels, in particular all welding bevels, has / are a width of more than 2 mm, in particular more than 3 mm, preferably more than 4 mm, and / or not more than 15 mm, in particular not more than 12 mm, preferably not more than 10 mm. In this way, it is made possible to provide a sufficiently strong material connection between profile element, profile component, additional profile element, and / or additional profile component for the transmission of force.According to a specific embodiment, the element connecting portion, the component connecting portion, the additional element connecting portion and / or the further element connecting portion is / are formed such that at least one of the welding notches, in particular all welding notches, is / are opened towards a support structure environment of the support structure. In particular, this is achieved by at least one of the stops, in particular all stops and at least one of the welding bevels, in particular all welding bevels, being arranged on the respective stops in such a way that they are oriented toward the support structure environment. Such an alignment is present when a person located in the support structure environment can look at a welding chamfer at an angle of view of at least 30°, in particular of at least 60°, preferably of at least 70°. The angle of view is defined between the orientation of the surface of a respective welding chamfer (with respect to a respective cross section) and an axis of view between person and welding chamfer.The described configuration of the welding notch(s) and / or of the welding chamfer(s) makes it possible to access the respective welding notch for welding.At least one welding chamfer, in particular the first welding chamfer and the second welding chamfer of the profile element, preferably all welding chamfers, can be formed on profile walls and / or in each case by a profile wall.The term "support structure environment" describes a space outside the support structure formed or to be formed, in particular with a minimum distance to the support structure of at least 50% of an element width, a component width or an additional element width.According to one configuration, the third component radius and the fourth component radius, in particular all component radii, have an identical component center point. Accordingly, the component connecting section forms a circular outer contour with a constant radius which is substantially constant at least in the region of the component surfaces. The first component surface and the second component surface and / or the third component surface and the fourth component surface lie on the circular outer contour.In this way, the body contact between profile element and profile component, and / or between profile component and additional profile element, and / or profile element and additional profile component is improved in different relative positions. In particular, during the setting of the desired relative position, this prevents an undesired relative displacement of profile element and profile component, of profile component and additional profile element, and / or of profile element and additional profile component in the element transverse direction, in the component transverse direction, and / or in the additional element / additional component transverse direction.According to a further improved configuration, the first element stop has a first element radius and the second element stop has a second element radius, wherein the first element radius and the second element radius preferably have an identical component center point. Optionally, the component radii and the element radii corresponding therewith all have the same component center point. In particular, the presence, arrangement and / or configuration of the contacting stop / stops with a corresponding element or component radius surface / s, or additional element or component radius surface / s, is to be implemented for the purpose of forming the statically at least determined body contact. For example, the first element stop and the second element stop can be formed jointly and / or integrally by means of a single element radius surface comprising the first element radius surface and the second element radius surface. In this case, a first region of the common radius surface forms the first element stop with a corresponding first element radius surface, and a second region of the common radius surface forms the second element stop with a corresponding second element radius surface. In particular, this means that the conceptual differentiation as a "first stop", initial sign on second stop", "first surface" and "second surface" is not necessarily to be understood as physical differentiation; rather, the first and second of the corresponding regions / components / elements can be formed integrally on one piece.According to a further embodiment, the first component radius surface and the second component radius surface are integrally provided on a same region of the component connecting portion in such a way that they merge into one another and together represent a continuous, uninterrupted component radius surface. This measure increases the stability of the connecting section.In the course of an additional embodiment, it is disclosed that the third component radius surface and the fourth component radius surface are also provided integrally on a same region of the further component connecting portion in such a way that they merge into one another and together represent a continuous, uninterrupted component radius surface. In this way, all component radius surfaces lie on a continuous surface of the profile component connecting the profile element and the additional profile element, wherein the overall stability of the support structure formed thereby is increased.In parts in addition and / or entirely alternatively to the above embodiments, the component radius surfaces are provided on different regions of the component connecting portion and / or of the further component connecting portion which are separated from one another, such that the radius surfaces do not merge into one another and represent an entire component radius surface provided with an interruption. In this way, for example, a total weight of the supporting structure can be reduced and / or accessibility into an interior space of the profile element and / or of the profile component can be made possible.In addition, it is described that the first component radius and the second component radius are both formed convexly with respect to a component body of the profile component, and in particular wherein the first element radius and the second element radius are both formed concavely. In this way, a range for setting a relative position is easily widened.According to one embodiment, the first component radius, the second component radius, the first element radius, the second element radius, the third component radius, the fourth component radius, the first additional element radius, the second additional element radius, the first additional component radius, and / or the second additional component radius is or amount to at least 40%, in particular at least 100%, preferably at least 300% and / or at most 10000%, in particular at most 2000%, preferably at most 1000%, of an element width of the profile element, a component width of the profile component, an additional element width of the additional profile element, and / or a component width of the additional profile component. In particular, by a radius being substantially greater than a component width, it can be achieved in this way that a respective weld seam is particularly well defined and / or a grinding of the respective weld seam results in a particularly clear contour.According to a preferred embodiment, the further component connecting section of the profile component lies opposite the (first) component connecting section-in relation to the component profile plane-in the direction of the component vertical axis. The profile component is thus designed in such a way that, with respect to the component vertical axis, a welded connection to the profile element can be produced on one side of the profile component, and a connection to the additional profile element can be provided on the opposite side of the profile component. In this way, the profile component functions as a position-variable connecting component between the profile elements. In this case, the component radius surfaces can all be provided jointly on a continuous, uninterrupted surface of the profile component, with the result that these form a mutually merging, common, continuous and uninterrupted component radius surface.According to a further embodiment, it is even conceivable for the profile component to have a closed oval, annular or circular outer contour. In the case of a circular outer contour, the profile component appears as a tube with respect to its outer shape.Regardless of whether the profile component is oval, ring-shaped or circular in shape, an internal structure can advantageously be provided for strengthening and / or stiffening. For example, internal webs (internal ribbing) can be connected from the inside to an outer contour of the profile component in the region of one or all component radius surfaces, so that advantageous force introduction points are provided and the force flow through the profile component is advantageously made possible.The above-described internal structures for strengthening and / or stiffening can likewise be provided for the profile component or for the profile element.According to one embodiment, the profile element, the profile component, the additional profile element, and / or the additional profile component have a similar width extension in the respective transverse direction. In particular, an element width of the profile element differs from a component width of the profile component, and / or element width from an additional profile element width, and / or component width differs from the additional profile element width by not more than 30%, in particular by not more than 20%, preferably by not more than 10%. This relates in particular to a width of the respective components in the region of a respective connecting section.Furthermore, a supporting structure of a vehicle body of a vehicle, in particular of a rail vehicle, is disclosed, wherein the supporting structure is formed by at least one profile element and by a profile component welded thereto. In particular, the supporting structure has at least one or a plurality of systems according to one or a combination of the preceding exemplary embodiments, wherein the profile element and the profile component are welded to one another by applying the first weld seam in the first welding notch and by applying the second weld seam in the second welding notch according to the first relative position or the second relative position.It is furthermore conceivable for the supporting structure to have a profile component, a profile element and an additional profile element. The profile element is welded to the profile component, and the additional profile element is also welded to the profile component by providing a third weld seam in the third weld notch and a fourth weld seam in the fourth weld notch.According to another aspect, a vehicle body for a vehicle is disclosed. This carriage body has, for example, a floor which is constructed with the aid of at least one supporting structure according to one of the preceding exemplary embodiments. Such a floor can in turn have recesses for receiving bogies or drive components, wherein corresponding jumps in height in the longitudinal direction of the vehicle or in the transverse direction of the vehicle and corresponding walls are constructed with the aid of a supporting structure according to one of the preceding exemplary embodiments. Furthermore, walls of the vehicle running in the transverse direction or in the longitudinal direction can be represented with the aid of supporting structures according to one of the preceding exemplary embodiments.According to one embodiment, the car body is not made of and / or not with the aid of steel profiles and / or has substantially no steel profiles. The term "substantially" in this context means that no substantial support elements, support structures, carriers and / or other structure-forming components, or components thereof, is / are manufactured from and / or with the aid of steel profiles and / or has / are. Preferably, this exclusion does not relate to connecting means, such as screws and / or rivets.According to a preferred embodiment, the supporting structure and / or supporting structures of the car body are substantially entirely made of aluminium alloys. The term "substantially" in this context means that substantially all supporting elements, supporting structures, carriers and / or other structure-forming components, or components thereof, is / are produced from at least one aluminum alloy.The system for forming the supporting structure shows its conceptual strength here, since a multiplicity of different components, units, walls, roof regions, troughs, recesses and / or other components and regions of the vehicle body can be represented by substantially identical types of semi-finished products (profile element, profile component, additional profile element, additional profile component) in that corresponding semi-finished products can be welded to one another in different positions.The embodiments described above can be combined with one another as desired, but in a meaningful manner, wherein, for example, some supporting structures of the car body are formed by only one profile element and one profile component, but further supporting structures are formed by one profile element, one additional profile element and one connecting profile component.Brief Description of the FiguresThe accompanying drawings illustrate embodiments and together with the description serve to explain the principles of the invention. The elements of the drawings are relative to each other and not necessarily to scale.Like reference numerals designate like or corresponding like parts. FIG. 1 shows a rail vehicle with two cars; FIG. 2 shows a partial cross section through a car body of one of the cars of the rail vehicle according to FIG. 1 ; FIG. 3 is a partially sectional perspective view through a supporting structure of the car body of FIG. 2 ; FIG. 4 shows a partial cross section through a connecting region of the supporting structure according to FIG. 3, FIG. 5 represents a partial cross section through a profile component of the supporting structure according to FIG. 4, FIG. 6 shows a partial cross section through a profile element of the supporting structure according to FIG. 4 ; FIG. 7 is a partial cross-section of an alternative embodiment of a connection region of a support structure similar to the support structure of FIG. 3 ; and FIG. 8 illustrates a further alternative embodiment of a support structure similar to the support structure according to FIG. 3.Exemplary EmbodimentsTo clarify the overall understanding, a rail vehicle 100 is illustrated with reference to FIG. 1. This has two cars coupled to one another in a longitudinal direction 103 and each having a car body 102, which cars are mounted on rails in a rollable manner via bogies 101. The car bodies 102 have a head structure 111 and / or an end wall 112 at end regions in the longitudinal direction 103.FIG. 2 shows a partial section through a carriage body 102. In this case, a base 108, a wall 106, and a roof 107 are constructed from profile elements 20, from profile components 40 and from additional profile elements 60, 80 and 81. According to the present example, an element profile direction 22 of the profile element 20, a component profile direction 42 of the profile component 40, an additional element profile direction 62 of the additional profile element profile elements 20 and profile directions in further additional profile elements 80 and 81 extend substantially in the longitudinal direction 103 of the car body 102. However, it is also conceivable for a profile element or a profile component to be installed in the carriage body 102 at least partially aligned in a carriage body transverse direction 105, wherein a respective profile axis runs at least partially in a vertical direction 104 and / or in a carriage body transverse direction 105.In FIG. 2, an additional profile element 60, functioning as a base 108, a profile element 20 and a connecting profile component 40 form a first supporting structure 2 of the car body 102. This support structure 2 realizes a transition from the floor 108 into a lower part of the wall 106 of the car body 102.Further support structures 2 are provided in a transition from the lower part of the wall 106 into an additional element 80 of the side wall and in a transition from the additional element 80 of the side wall into a further additional element 81 of the roof 107. In this case, individual profile elements 20, connecting profile components 40 and additional profile elements 60, 80 and 81 are used in part.FIGS. 3 to 6 show in schematic manner a first embodiment of a supporting structure 2. a profile element 20 is connected to a profile component 40 according to a first relative position 3 at an angle 5. For example, such a supporting structure 2 can be used for constructing the side wall 106 of the car body 102. In order not to unduly complicate readability of the figures, not all reference numerals are included in each of FIGS. 3 to 6.The support structure 2 according to FIGS. 3 to 6 is composed of a profile element 20 and a profile component 40 welded thereto. The profile element 20 and the profile component 40 are aligned with one another with respect to their profile axes 22 and 42. A vertical axis 25 of the profile element 20 encloses the angle 5 with a vertical axis 45 of the profile component 40.The reference sign 3 represents a first and realized relative position 3 of the profile element 20 and the profile component 40 and coincides with the vertical axis 45 in the drawing. Reference numeral 4 represents a further possible relative position 4 of profile element 20 and profile component 40.With the aid of FIGS. 5 and 6, structural details of the profile element 20 (FIG. 6 ) and of the profile component 40 (FIG. 5 ) are presented. The profiled component 40 has a component profiled axis 43 oriented in the component profiled direction 42. Perpendicular to the profile axis 32, a component profile plane 44 can be defined, in which the cross-sectional representations of the profile component 40 according to FIGS. 4-6 lie. In the component profile plane 44, the component vertical axis 45 extends, forming a corresponding component vertical direction, and a component transverse axis forms a component transverse direction 46.The profile component 40 is a semi-finished product extending in the profile direction 42 with a component body 58 and a component connecting section 41 adjoining the latter. The component connecting portion 41 has a rounded outer contour for forming a first component radius surface 47 and a second component radius surface 49, which serve for contacting element stops 32 and 33 of the profile element 20. The first component radius surface 47 is convexly curved around the component center point 51 with a first component radius 48 with respect to the component body 58, and the second component radius surface 49 is convexly curved around the component center point 51 with a second component radius 50 with respect to the component body 58.The profile element 20 shown in FIG. 6 also has an element profile direction 22 and an element profile axis 23 lying therein, wherein an element profile plane 24 can be defined perpendicular thereto. Therein, the element vertical axis 25 defining an element vertical direction and an element transverse direction 26 defining an element transverse axis.The profile element 20 comprises an element body 38 with an inner ribbing 82 and corresponding webs and an element connecting section 21 for establishing a statically at least determined body contact with the profile component 40. Furthermore, a second element stop 29, a second welding chamfer 35 and, in particular, a second gas pocket 37 lying therebetween are provided.The contour of the profile element 20 in the element profile plane 24 can be described as follows: the first element stop 32 lies adjacent to the first element gas pocket 36 and this in turn lies adjacent to the first welding chamfer 34. in particular, an element surface of the profile element 20 is designed such that a surface section of the first element stop 32 merges into a surface section of the first element gas pocket 36 while making an angle or bending, wherein this in turn merges further into a surface section of the first welding chamfer 34 while making an angle or bending. In particular, the first welding chamfer 34 is arranged further outwards than the first element stop 32 with respect to a vicinity of the profile component 20 and thus also a support structure vicinity 14. The first element stop 32 is thus closer to the vertical axis 25 than the first welding chamfer 34.The arrangement of the first element stop 32, the first gas pocket 36 and the first welding chamfer 34 corresponds analogously to the arrangement of the second element stop 33, the second gas pocket 37 and the second welding chamfer 35.The first element stop 32 has a first element radius surface 27 which is curved with a first element radius 28 about an element center point 31 for contacting the first component radius surface 47 of the profile component 40. Analogously, the second element stop 33 is provided with a second element radius surface 29 which is bent with a second element radius 30 about the element center point 31.Assembled and welded to one another, the profile element 20 and the profile component 40 form the supporting structure 2 (FIGS. 3 and 4 ), wherein the profile element 20 and the profile component 40 can assume the different relative positions 3 and 4, but also further relative positions, with respect to an orientation of element vertical axis 25 and component vertical axis 45. The plurality of different relative positions 4 and 5 are made possible in that the first element radius surface 27 of the first element stop 32 makes contact with the first component radius surface 47 and the second element radius surface 29 of the second element stop 33 makes contact with the second component radius surface 49 in a normal force-bearing manner. In addition to the common alignment in profile directions 22 and 42, for this purpose the element connecting section 21 and the component connecting section 41 are pressed against one another. As a result, the first element stop 32 bears against the first component radius surface 47 and the second element stop 33 bears against the second component radius surface 49. By now defining and assuming the relative position 3 or 4 by the statically at least determined contact, the first welding chamfer 34 forms with the first component radius surface 47 a first welding notch 6 for a first welding seam 8 (FIG. 3 ) and the second welding chamfer 35 forms with the second component radius surface 49 a second welding notch 7 for a second welding seam 9 (FIG. 3 ).In order to produce the position-variable connection of profile element 20 and profile component 40, the element connecting section 21 forms a type of joint guide via the element stops 32 and 33 for the round component connecting section 41, such that the entire profile component 40 can pivot in the element connecting section 21 about a component profile axis, in particular about the element center point 31 and / or the component center point 51-depending on the viewing the profile element 20 is pivotable about the component connecting section 41.The element connecting portion 21 and the component connecting portion 41 are formed such that at least the first welding notch 6 and the second welding notch 7 are opened toward the support structure periphery 14. For this purpose, the stops 32 and 33, the welding bevels 34 and 35 and the component radius surfaces 47 and 48 are arranged on the respective connecting sections 21 and 41 in such a way that a person located in the environment of the supporting structure can look at a welding bevel 6 and 7 at an angle of view of at least 30°, in particular of at least 60°, preferably of at least 70°.The geometric shape of the component connecting section 41, in particular of the component radius surfaces 47 and 49, and of the element connecting section 21, in particular of the welding bevels 34 and 35, is selected such that the welding notches 6 and 7 are designed for the introduction of an HV weld seam. For example, the weld notches 6 and 7 enclose an angle of more than 50° and less than 100° between respective weld bevels 34 and 35 and respective radius surfaces 47 and 49.A minimum distance between the first welding notch 6 and the second welding notch 7 may be defined as the profile welding distance 18. This is at least 20 mm, in particular at least 40 mm, preferably at least 50 mm and / or at least 70%, in particular at least 80%, preferably at least 85%, of an element width 39 of the profile element 20 and / or of a component width 59 of the profile component 40.FIG. 7 shows an alternative exemplary embodiment of a supporting structure 2 similar to the supporting structure 2 according to the exemplary embodiment of FIGS. 3 to 6 In particular, a multiplicity of features are identical or identical, wherein the embodiments differ significantly by a modified component connecting section 41. The component connecting section 41 of the profile component 40 of FIG. 7 has an interrupted region 57, so that the first component radius surface 47 and the second component radius surface 49 are arranged separately from one another-by the interrupted region 57. By the component radius surfaces 47 and 49 not merging into one another, and by the interrupted region 57 being provided instead, a total weight of the supporting structure 2 can be reduced and / or accessibility into an interior space of the profile component 40 can be made possible.FIG. 8 shows a further embodiment of a supporting structure 2 comprising a profile element 20, a profile component 40 and an additional profile element 60. For this purpose, the profile component 40 has a first component connecting section 41 for forming a first and second welding notch 6 and 7 and for producing a connection to the element connecting section 21, and a further component connecting section 56 for forming a third welding notch 16 and a fourth welding notch 17 and for producing a connection to an additional element connecting section 61 of the additional profile element 60.With regard to the basic functional principle, the supporting structure 2 of the embodiment according to FIG. 8 is designed similar to the embodiment according to FIGS. 3 to 6, wherein the profile component 40 is designed as a tube-shaped profile with an internal ribbing having a web 83. Alternatively, not shown, the profile component 40 can also be oval-shaped.The profile component 40 now has, on the further component connecting section 56, a third component radius surface 52 with a third component radius 53 and a fourth component radius surface 54 with a fourth component radius 55. These serve to establish a statically at least determined contacting of the further component connecting section 56 with an additional element connecting section 61 of the additional profile element 60.The additional profile element 60 can be designed substantially similar to the profile element 20 with an additional element connecting section 61 and an additional element body 68 and an additional element width 79, with an additional element profile direction 62, an additional element profile axis 63, an additional element profile plane 64, an additional element vertical axis 65 and an additional element transverse direction 66. The additional profile element 60 has, in the region of the additional element connecting section 61, a first additional element stop 72, a first additional element welding chamfer 74 and, in particular, a first additional element gas pocket 76 lying therebetween. Furthermore, a second additional element stop 73, a second additional welding chamfer 75 and, in particular, a second additional gas pocket 77 lying therebetween are provided. In particular, a first additional element radius surface 67 is provided on the first additional element stop 72, and a second element radius surface 69 is provided on the second additional element stop 73 for contacting the third component radius surface 52 and the fourth component radius surface 54 of the profile component 40. The first and second additional element radius surfaces 67 and 69 are curved with a respective first and second additional element radius 70 about an additional element center point 71 of the additional profile element 60.Since four welding notches 6, 7, 16, 17 are now formed, profile element 20, profile component 40 and additional profile element 60 are materially connected to one another by means of a first welding seam 8, a second welding seam 9, a third welding seam 12 and a fourth welding seam 13.In order to maintain the necessary welding distance, the profile component 40 is designed such that the first component radius surface 47 and the third component radius surface 52, and the second component radius surface 59 and the fourth component radius surface 54 are provided spaced apart such that the first welding notch 6 and the third welding notch 16 and the second welding notch 7 and the fourth welding notch 17 are spaced apart from one another by a supporting structure welding distance 19, independently of the selected relative positions. The supporting structure welding distance 19 is at least 20 mm, in particular at least 40 mm, preferably at least 50 mm and / or at least 70%, in particular at least 80%, preferably at least 85%, of the component width 59 of the profile component 40.Although specific embodiments have been illustrated and described herein, it is within the scope of the present invention to suitably modify the illustrated embodiments without departing from the scope of the present invention; for example, a support structure may be formed by a plurality of profile members 20 and auxiliary profile members 60, each connected by round or oval shaped profile members 40.List of reference characters1 System 2 Support structure 3 First relative position 4 Second relative position 5 Angle 6 First welding notch 7 Second welding notch 8 First welding seam 9 Second welding seam 10 Third welding notch 11 Fourth welding notch 12 Third welding seam 13 Fourth welding seam 14 Support structure environment 15 Further relative position 16 Third welding notch 17 Fourth welding notch 18 Profile welding distance 19 Support structure welding distance 20 Profile element 21 Element connecting portion 22 Element profile direction 23 Element profile axis 24 Element profile plane 25 Element vertical axis 26 Element transverse direction 27 First element radius surface 28 First element radius 29 Second element radius surface 30 Second element radius 31 Element central point 32 First element stop 33 Second element stop 34 First welding chamfer 35 Second welding chamfer 36 First Gas pocket 37 Second gas pocket 38 Element body 39 Element width 40 Profile component 41 Component connecting portion 42 Component profile direction 43 Component profile axis 44 Component profile plane 45 Component vertical axis 46 Component transverse direction 47 First component radius surface 48 First component radius 49 Second component radius surface 50 Second component radius 51 Component center point 52 Third component radius surface 53 Third component radius 54 Fourth component radius surface 55 Fourth component radius 56 Further component connecting portion 57 Interrupted region 58 Component body 59 Component width 60 Additional profile element 61 Additional element connecting portion 62 Additional element profile direction 63 Additional element profile axis 64 Additional element profile plane 65 Additional element vertical axis 66 Additional element transverse direction 67 First additional element radius surface 68 First additional element radius 69 Second additional element radius surface 70 Second additional element radius 71 Additional element center point 72 First additional element stop 73 Second additional element stop 74 First additional element weld chamfer 75 Second additional element weld chamfer 76 First additional element gas pocket 77 Second additional element gas pocket 78 Additional element body 79 Additional element width 80 Further additional element 81 Further additional element 82 Ribbing / inner web 83 Ribbing / inner web 84 Ribbing / inner web 100 Rail vehicle 101 Bogie 102 Car body 103 Longitudinal direction 104 Vertical direction 105 Car body transverse direction 106 Wall 107 Roof 108 Floor 108 Floor 109 Interior 110 Vehicle environment 111 Head structure 112 End wall

Claims

System (1) for forming a supporting structure (2) of a vehicle body (102) of a vehicle, in particular of a rail vehicle (100), - having a profile element (20) having ▪ an element profile axis (23) extending in an element profile direction (22), an element profile plane (24) extending perpendicularly thereto, and an element vertical axis (25), ▪ a first element stop (32), a first welding chamfer (34), a second element stop (33), and a second welding chamfer (35), - and having a profile component (40) having ▪ a component profile axis (43) extending in a component profile direction (42), a component profile plane (44) extending perpendicularly thereto, and a component vertical axis (45) extending therein, ▪ a first component radius surface (47) running perpendicular to the component profile plane (44) with a first component radius (48), ▪ a second component radius surface (49) running perpendicular to the component profile plane (44) with a second component radius (50), - wherein the first element stop (32) and the second element stop (33) are provided in such a way on an element connecting section (21) of the profile element (20), and wherein the first component radius surface (47) and the second component radius surface (49) are provided in such a way on a component connecting section (41) of the profile component (40), • so that, by means of joint alignment of element profile direction (22) and component profile direction (42), and by means of normally force-loaded contacting of the first element stop (32) and the first component radius surface (47) and of the second element stop (33) and the second component radius surface (49), the profile element (20) and the profile component (40) can assume a plurality of different relative positions (3, 4) with respect to one another, in each case at an individual angle (5) between the element vertical axis (25) and the component vertical axis (45), forming a statically at least determined body contact, ▪ wherein the first welding chamfer (34) forms with the first component radius surface (47) a first welding notch (6) for a first welding seam (8) and the second welding chamfer (35) forms with the second component radius surface (49) a second welding notch (7) for a second welding seam (9), ▪ wherein the first component radius (48) and the second component radius (50) have an identical component center point (51).The system (1) according to claim 1, further comprising - an additional profile element (60) having ▪ an additional element profile axis (63) extending in an additional element profile direction (62), an additional element profile plane (64) extending perpendicular thereto, and an additional element vertical axis (65) extending therein, ▪ a first additional element stop (72), a first additional element welding chamfer (74), and in particular a first additional element gas pocket (76) arranged therebetween, and ▪ a second additional element stop (73), a second additional element welding chamfer (75), and in particular a second additional element gas pocket (77) arranged therebetween, and / or - wherein the first additional element stop (72) and the second additional element stop (73) are provided on an additional element connecting portion (61) of the additional profile element (60) in such a way, and - wherein the profile component (40) has on a further component connecting portion (56) in each case a third component radius surface (52), running perpendicularly to the component profile plane (44), having a third component radius (53) and a fourth component radius surface (54) having a fourth component radius (55) in such a way, ▪ so that, by means of joint alignment of the additional element profile direction (62) and the component profile direction (42), and by means of normally force-loaded contacting of first additional element stop (72) and third component radius surface (52) and of second additional element stop (73) and fourth component radius surface (54), the additional profile element (60) and the profile component (40) can assume a plurality of different relative positions (15) with respect to one another, each with an individual angle between additional element vertical axis (65) and component vertical axis (45), forming a statically at least determined body contact, ▪ wherein the first additional element welding chamfer (74) forms with the third component radius surface (52) a third welding notch (10) for a third welding seam (12) and the second additional element welding chamfer (75) forms with the fourth component radius surface (49) a fourth welding notch (11) for a fourth welding seam (13).The system (1) according to any one of the preceding claims, further comprising - an additional profile component having ▪ an additional component profile axis extending in an additional component profile direction, an additional component profile plane extending perpendicular thereto, and an additional component vertical axis extending therein, ▪ a first additional component radius surface extending perpendicular to the additional component profile plane having a first additional component radius, ▪ a second additional component radius surface extending perpendicular to the additional component profile plane having a second additional component radius, - wherein the profile element (20) has at a further element connecting portion a third element stop, a third welding chamfer, and a third gas pocket arranged therebetween, a fourth element stop, a fourth welding chamfer, and a fourth gas pocket arranged therebetween, respectively, ▪ so that, by means of joint alignment of additional component profile direction and element profile direction (22), and by means of normal force-bearing contacting of third element stop and first additional component radius surface and of fourth element stop and second additional component radius surface, the additional profile component and the profile element (20) can assume a plurality of different relative positions to one another, in each case with an individual angle between additional component height axis and element height axis (25), forming a statically at least determined body contact, ▪ wherein the third weld chamfer with the first additional component radius surface forms a third weld notch for a third weld seam and the fourth weld chamfer with the second additional component radius surface forms a fourth weld notch for a fourth weld seam.The system (1) according to any one of the preceding claims, wherein at least one of the welding notches (6, 7, 10, 11), in particular all welding notches (6, 7, 10, 11), forms / en an angle suitable for introducing a V or HV welding seam, and / or wherein at least one of the welding notches (6, 7, 10, 11), in particular all welding notches (6, 7, 10, 11), encloses / en an angle of more than 10°, in particular more than 30°, preferably more than 50°, and / or not more than 100°, in particular not more than 70°, preferably not more than 60°.The system (1) according to any one of the preceding claims, wherein at least one of the welding bevels (34, 35, 74, 75), in particular all of the welding bevels (34, 35, 74, 75) has / s a width of more than 2 mm, in particular more than 3 mm, preferably more than 4 mm, and / or not more than 15 mm, in particular not more than 12 mm, preferably not more than 10 mm.The system (1) according to any one of the preceding claims, wherein the element connecting portion (21), the component connecting portion (41), the additional element connecting portion (61) and / or the further element connecting portion are formed in such a way, in particular wherein at least one of the stops (32, 33, 72, 73), in particular all stops (32, 33, 72, 73) and at least one of the welding bevels (34, 35, 74, 75), in particular all welding bevels (34, 35, 74, 75) are provided in such a way that at least one of the welding notches (6, 7, 10, 11), in particular all welding notches (6, 7, 10, 11), is / are open towards a support structure environment (14) of the support structure (2).System (1) according to one of the preceding claims, wherein the first component radius (48) and the second component radius (50), and / or in particular also the first element radius (28) and the second element radius (30), deviate from one another quantitatively by a maximum of 40%, in particular by a maximum of 20%, preferably by a maximum of 10%, particularly preferably by a maximum of 5%, or are substantially of the same size.System (1) according to one of the preceding claims, - wherein the first element stop (32) has a first element radius (28) and the second element stop (33) has a second element radius (30), and the first element radius (28) and the second element radius (30) have an identical component centre point (31), - in particular wherein the first component radius (48), the second component radius (50), the first element radius (28) and the second element radius (30) all have the same component centre point (31, 51).The system (1) according to any one of the preceding claims, - wherein the first component radius surface (47) and the second component radius surface (49) are provided integrally on a same region of the component connecting portion (41) such that they merge into one another and together represent a continuous, uninterrupted component radius surface, and / or - wherein the third component radius surface (52) and the fourth component radius surface (54) are provided integrally on a same region of the further component connecting portion (56) such that they merge into one another and together represent a continuous, uninterrupted component radius surface, or - wherein the first component radius surface (47) and the second component radius surface (49) are provided separately on different regions of the component connecting portion (41), so that these do not merge into one another and together represent a component radius surface provided with an interruption (57).System (1) according to one of the preceding claims, - wherein the first component radius (48) and the second component radius (50) are both either convex or concave with respect to a component body (38) of the profile component (40), and in particular wherein the first element radius (28) and the second element radius (30) are both concave or convex, - wherein the first component radius (48), the second component radius (50), the first element radius (28), the second element radius (30), the third component radius (53), the fourth component radius (55), the first additional element radius (68), the second additional element radius (68), the first additional component radius, and / or the second additional component radius is / are at least 40%, in particular at least 100%, preferably at least 300% and / or at most 10000%, in particular at most 2000%, preferably at most 1000%, of an element width (39) of the profile element (20), of a component width (59) of the profile component (40), of an additional element width (79) of the additional profile element (60), and / or of a component width of the additional profile component.System (1) according to one of the preceding claims, - wherein the profile component (40) has, on a further component connecting portion (56), in each case a third component radius surface (52), which runs perpendicularly to the component profile plane (44) and has a third component radius (53), and a fourth component radius surface (54), which has a fourth component radius (55), and the further component connecting portion (56) lies opposite the component connecting portion (41) substantially in the direction of the component vertical axis (45), - and wherein the component radius surfaces (47, 49, 53, 55) are provided integrally on a surface of the profile component (40) in such a way that they merge into one another and together represent a continuous, uninterrupted component radius surface, and in particular - wherein the profile component (40) has a closed annular, in particular circular, outer contour.Support structure (2) of a vehicle body (102) of a vehicle, in particular of a rail vehicle (100), comprising a system (1) for forming the support structure (2) according to any one of the preceding claims, wherein the profile element (20) and the profile component (40) are welded to one another by applying the first weld seam (8) in the first weld notch (6) and by applying the second weld seam (9) in the second weld notch (7) according to the first relative position (3) or the second relative position (4).Support structure (2) according to claim 12, - wherein the system (1) for forming the support structure (2) according to any one of the preceding claims 2 to 11 is formed such that the additional profile element (60) and the profile component (40) are welded to one another by applying the third weld seam (12) in the third weld notch (10) and by applying the fourth weld seam (13) in the fourth weld notch (11) according to a further relative position (15), and / or - wherein the system (1) for forming the support structure (2) according to any one of the preceding claims 2 to 11 is formed such that the additional profile component and the profile element (20) are welded to one another by applying the third weld seam in the third weld notch and by applying the fourth weld seam in the fourth weld notch according to a relative position.Vehicle body (102) for a vehicle, in particular for a rail vehicle (100), having - a floor (108) which is constructed in particular with the aid of at least one supporting structure (2) according to Claim 12 or 13, - at least two walls (106) which run at least partially in a vertical direction (104) of the vehicle body (102) and are connected to the floor (108) and are each constructed with the aid of at least one supporting structure (2) according to Claim 12 or 13, - a roof (107) which runs at least partially in a transverse vehicle body direction (105) and is connected to the walls (106) and is constructed with the aid of at least one supporting structure (2) according to Claim 12 or 13, and / or - at least one head structure (111) and / or end wall (112) of the vehicle body (102) which are each constructed with the aid of at least one supporting structure (2) according to Claim 12 or 13.Vehicle, in particular a rail vehicle (100) having a car body (102) according to Claim 14.

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