WO2003045767A1 - Connecting element made of sheet steel for hollow profiles also made of sheet steel, particularly a frame structure of a vehicle body - Google Patents

Connecting element made of sheet steel for hollow profiles also made of sheet steel, particularly a frame structure of a vehicle body Download PDF

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Publication number
WO2003045767A1
WO2003045767A1 PCT/EP2002/012753 EP0212753W WO03045767A1 WO 2003045767 A1 WO2003045767 A1 WO 2003045767A1 EP 0212753 W EP0212753 W EP 0212753W WO 03045767 A1 WO03045767 A1 WO 03045767A1
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WIPO (PCT)
Prior art keywords
connecting element
profile
flanges
sheet steel
hollow profiles
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PCT/EP2002/012753
Other languages
German (de)
French (fr)
Inventor
Axel GRÜNEKLEE
Original Assignee
Thyssenkrupp Stahl Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Thyssenkrupp Stahl Ag filed Critical Thyssenkrupp Stahl Ag
Priority to AU2002349033A priority Critical patent/AU2002349033A1/en
Publication of WO2003045767A1 publication Critical patent/WO2003045767A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D23/00—Combined superstructure and frame, i.e. monocoque constructions
    • B62D23/005—Combined superstructure and frame, i.e. monocoque constructions with integrated chassis in the whole shell, e.g. meshwork, tubes, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/008—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of light alloys, e.g. extruded

Definitions

  • the invention relates to a connecting element made of sheet steel with at least two
  • Connectors for hollow profiles in particular made of sheet steel, which form part of a frame structure of a vehicle body.
  • Prefabricated connecting elements of this type facilitate and accelerate the assembly of hollow profiles into a frame structure of a vehicle body. This applies in particular if at least two hollow profiles are to be connected to one another at a point, a so-called node. They also allow the use of such joining technologies, which are difficult or impossible to implement with the direct connection of hollow profiles, especially with small wall thicknesses (e.g. welded connections with attached profiles).
  • a known connecting element of the type mentioned (DE 196 53 509 AI) is formed as a node element made by mecanical growth of sheet steel with at least two connecting pieces as connecting plug connections. The production of such a node element is only made to order possible and because of the IHU technology
  • connecting elements made of sheet steel which are made from sections of an extruded profile (US Pat. No. 5,767,476).
  • the individual sections each form a profile body with a central box-like part and several pairs of parallel flanges pointing radially outwards.
  • radially connectable hollow profiles can be inserted between the flanges
  • a connection profile can be inserted axially into the box-like part to form a three-dimensional knot.
  • a welded connection is also required for the cohesion of the hollow profiles to be connected and held together on the profile body.
  • sheet metal blanks arranged on both sides of the merged connection profiles are used, to which the individual hollow profiles to be connected are welded.
  • connection element is also set to a very specific connection configuration. It cannot be varied by simple measures with regard to the connection angle and the dimensioning of the hollow profiles to be connected.
  • Such a connecting element has a high degree of rigidity due to its massive design with large wall thicknesses and also a comparatively low weight due to the aluminum used, but in a cast steel version its weight would be too great for lightweight vehicle construction.
  • the invention has for its object to provide a connecting element of the type mentioned, which is easy to manufacture, can be easily adapted to various con igurations of the hollow profiles to be connected (angle and dimensioning) and with the connected hollow profiles as nodes a high rigidity having.
  • a connecting element of the type mentioned which is easy to manufacture, can be easily adapted to various con igurations of the hollow profiles to be connected (angle and dimensioning) and with the connected hollow profiles as nodes a high rigidity having.
  • the connecting element is designed as a profile body formed from two belts and at least one web holding the belts at a distance, the two belts of which protrude with their ends opposite the web or webs and with these projections parallel flanges as Form connector connections.
  • Such a connecting element is structurally simple and can also be aligned with the target Manufacture lightweight for vehicles from high-strength to ultra-high-strength steels without any problems. Compared to castings, higher-strength steels can be used to produce profile bodies with thinner wall thicknesses and thus, with the same rigidity, lighter profile bodies.
  • the connecting element can be manufactured as an individual part, but it is preferably manufactured as a section from an endless profile for reasons of cost-effective production.
  • the flanges allow a tolerance compensation of the hollow profiles to be connected in ' several respects, on the one hand by the fact that the hollow profiles are inserted more or less deeply between or on the flanges, and on the other hand especially when the hollow profiles are inserted between the flanges by pivoting between the flanges because the space between the flanges is open on the side.
  • the laterally open space also allows hollow profiles to be connected with one and the same connecting element in an extended position, but also in an angular position or even in parallel.
  • the parallel flanges allow adjustment to certain connection angles and dimensions of the hollow profiles to be connected in a simple manner, in that the flanges are angled to a greater or lesser extent.
  • the distance between the parallel flanges that form the connector plug connections can be varied.
  • the connecting element according to the invention with the inserted but also plugged-on hollow profiles, forms large overlap areas, which also apply to thin-walled ones Steel sheets enable the application of all common joining technologies without any problems.
  • the profile body consists of a section of an endless profile.
  • the profile body can be assembled from several parts.
  • a section of a Davex profile is particularly suitable as a profile body. Due to their special joining technology, Davex profiles are particularly well suited for the production of profiles from high-strength sheet steel blanks. Various materials, in particular steel grades, can also be combined with the goal of lightweight construction.
  • the profile body can be made from a sheet metal blank.
  • the production of profile bodies from sections of an endless profile formed by profile rolling or roll profiling is not only inexpensive, but also permits the problem-free use of high-strength steel grades.
  • the profile body preferably has a central box-like part.
  • the profile body can be stiffened by an insert body in this box-like part.
  • the adjustment can be made, as stated, by angling the flanges of a pair of flanges.
  • the length can be determined by the location of the kinks the flanges can be adjusted. So that the end regions of the flanges which are effective for the plug connection overlap the inserted or plugged-on connection profile to the same extent, the protrusions from which the flanges are formed are of different lengths.
  • 1 is a joining element made of flat sheet steel blanks with flanges of different lengths in a view in the axial direction
  • FIG. 2 shows the connecting element according to FIG. 1 with two hollow profiles inserted between angled flanges to form a two-dimensional L-node in a view in the axial direction of the connecting element
  • FIG. 3 shows the connecting element according to FIG. 1 with two hollow profiles inserted between angled flanges to form a laterally offset L-node in a view in the axial direction of the connecting element
  • FIG. 4 shows the connecting element according to FIG. 1 with two parallel hollow profiles inserted between angled flanges to form a parallel node in a view in the axial direction of the connecting element
  • 5 shows the connecting element according to FIG. 1 with two parallel hollow profiles inserted between angled flanges to form a parallel knot in a configuration different from FIG. 4 in a view in the axial direction of the connecting element and
  • FIG. 6 shows the connecting element according to FIG. 1 in a modified version, with flanges of the same length and hollow profiles connected thereto in the extended position, in a view in the axial direction of the connecting element.
  • the basic connecting element V shown in FIG. 1 is made up of one section and one of several
  • Sheet steel blanks made of continuous profiles.
  • the profile consists of two spaced-apart parallel webs 1, 2 and two parallel webs 3, 4 which are spaced apart by these webs 1, 2.
  • Both webs 3, 4, which form a box-like part 5 with webs 1, 2 protrude the box-like part 5 more or less far to form two pairs of flanges 3a, 4a, 3b, 4b, the upper belt 3 shown in FIG. 1 projecting beyond the box-like part 5 less than the lower belt 4.
  • the connecting element V of the embodiment of FIG. 2 shows a profile with a box-like part 5 with a cross-section for receiving a stiffening insert body 5a (see FIG. 2)
  • others are also Profiles with a hexagonal or octagonal cross section of the box-like part 5 are conceivable. In any case, these profiles have projecting flanges 3a, 4a, 3b, 4b.
  • the pairs of flanges 3a, 4a, 3b, 4b formed by the protrusions of the belts 3, 4 serve as connecting plug connections for hollow profiles 6 to 13 to be inserted in particular, in this case square profiles, e.g. T. differently dimensioned square profiles.
  • the flanges 3a, 4a, 3b, 4b are angled.
  • the included angle of the flanges 3a, 4a, 3b, 4b and, in addition, the position of the kink, the clear width between the flanges 3a, 4a, 3b, 4b on one and the same basic connecting element V can be the same or else via the degree of the angling adjust differently according to the dimension of the hollow profile to be connected 6 to 13.
  • the same connecting element V x also allows different types of connection of the hollow profiles 6 to 13, as shown in FIGS. 2 to 5.
  • the flanges 3a, 4a, 3b, 4b allow a tolerance compensation when connecting the hollow profiles 6 to 13, in that they are inserted or plugged in more or less far between or on the flanges 3a, 4a, 3b, 4b.
  • the straps 3, 4 of the connecting element V, V lf V 2 of the exemplary embodiments of FIGS . 1 to 5 have protrusions of different sizes to form the two pairs of flanges 3a, 4a, 3b, 4b, which is suitable for the
  • connection configurations of Figures 2 to 5 is useful insofar as both flanges 3a, 4a, 3b, 4b then overlap the hollow profiles 6 to 13 to be connected by the same amount.
  • the straps have Connecting element V 3 of the embodiment of FIG. 6 with elongated hollow profiles 14, 15 protrusions of equal length.
  • this connecting element V 3 also permits the parallel connection of the hollow profiles 14, 15. The described tolerance compensation is also possible.

Abstract

The invention relates to a connecting element (V1) made of sheet steel, comprising at least two plug-type connections for hollow profiles (6, 7) also made of sheet steel, particularly a frame structure of a vehicle body. The connecting element (V1) is provided in the form of a profile body whose plug-type connections are each formed by two parallel flanges (3a, 4a, 3b, 4b). A connecting element (V1) of this type enables, at the connection points, a connection with positive and material fit and with a compensation of tolerances both with regard to the plug-in/mounting degree as well as with regard to the angular connection. In addition, differently dimensioned profiles (6, 7) can be connected to one and the same base element solely by adjusting the parallel flanges (3a, 4a, 3b, 4b) to be bent.

Description

Aus Stahlblech bestehendes Verbindungselement für Hohlprofile aus Stahlblech, insbesondere eine Rahmens ruktur einer FahrzeugkarosserieMade of sheet steel connecting element for hollow sections made of sheet steel, in particular a frame structure of a vehicle body
Die Erfindung betrifft ein aus Stahlblech bestehendes Verbindungselement mit mindestens zweiThe invention relates to a connecting element made of sheet steel with at least two
Anschlußsteckverbindungen für insbesondere aus Stahlblech bestehende Hohlprofile, die Teile einer Rahmenstruktur einer Fahrzeugkarosserie bilden.Connectors for hollow profiles, in particular made of sheet steel, which form part of a frame structure of a vehicle body.
Vorgefertigte Verbindungselemente dieser Art erleichtern und beschleunigen den Zusammenbau von Hohlprofilen zu einer Rahmenkonstruktion einer Fahrzeugkarosserie. Dies gilt insbesondere dann, wenn in einem Punkt, einem sogenannten Knotenpunkt, mindestens zwei Hohlprofile miteinander verbunden werden sollen. Auch erlauben sie die Anwendung auch von solchen Fügetechnologien, die bei unmittelbarer Verbindung von Hohlprofilen vor allem mit kleinen Wandstärken (z.B. Schweißverbindung bei aufgesteckten Profilen) gar nicht oder nur schwer zu realisieren sind.Prefabricated connecting elements of this type facilitate and accelerate the assembly of hollow profiles into a frame structure of a vehicle body. This applies in particular if at least two hollow profiles are to be connected to one another at a point, a so-called node. They also allow the use of such joining technologies, which are difficult or impossible to implement with the direct connection of hollow profiles, especially with small wall thicknesses (e.g. welded connections with attached profiles).
Ein bekanntes Verbindungselement der eingangs genannten Art (DE 196 53 509 AI) ist als ein durch Innenhochdrucku formen aus Stahlblech hergestelltes Knotenelement mit wenigstens zwei Anschlußstutzen als Anschlußsteckverbindungen ausgebildet. Die Herstellung eines solchen Knotenelementes ist nur in Einzelfertigung möglich und wegen der IHU-TechnologieA known connecting element of the type mentioned (DE 196 53 509 AI) is formed as a node element made by Innenhochdrucku made of sheet steel with at least two connecting pieces as connecting plug connections. The production of such a node element is only made to order possible and because of the IHU technology
(Innenhochdruckumformen) recht aufwendig. Auch läßt eine solche Einzelfertigung es nicht zu, auf einfache Art und Weise die Winkelausrichtung und/oder die Dimensionierung der Anschlußsteckverbindung zu verändern. Darüber hinaus eignet sich das IHU-Verfahren nur bedingt zur Herstellung von Knotenelementen aus höherfesten bis höchstfesten Stahlgüten, da die Umformung von aus solchen Stahlgüten bestehenden Rohlingen nur sehr begrenzt möglich ist.(Hydroforming) quite complex. Such a one-off production also does not allow the angular orientation and / or the dimensioning of the connector to be changed in a simple manner. In addition, the IHU process is only suitable to a limited extent for the production of node elements from high-strength to ultra-high-strength steel grades, since the forming of blanks made from such steel grades is only possible to a very limited extent.
Neben solchen aus Stahlblech bestehenden Verbindungselementen gibt es aus Aluminium bestehende Verbindungselemente, die aus Abschnitten eines Strangpreßprofils gefertigt sind (US-PS 5 767 476) . Die einzelnen Abschnitte bilden jeweils einen Profilkörper mit einem zentralen kastenartigen Teil und mehreren Paaren von radial nach außen weisenden, parallelen Flanschen. Während zwischen die Flansche radial anzuschließende Hohlprofile gesteckt werden können, kann in den kastenartigen Teil ein Anschlußprofil zur Bildung eines dreidimensionalen Knotens axial eingesteckt werden. Für den Zusammenhalt der am Profilkörper zusammengeführten und -gehaltenen anzuschließenden Hohlprofile ist darüber hinaus eine Schweißverbindung erforderlich. Dafür werden beidseitig der zusammengeführten Anschlussprofile angeordnete Blechzuschnitte eingesetzt, an denen die einzelnen anzuschließenden Hohlprofile angeschweißt sind. Eine solche Konstruktion ist schon wegen der vielen anzuschweißenden Blechzuschnitte aufwendig. Wie das andere bekannte Verbindungselement aus Stahlblech ist auch dieses Verbindungselement auf eine ganz bestimmte Anschlußkonfiguration festgelegt. Es läßt sich nicht durch einfache Maßnahmen bezüglich der Anschlußwinkel und der Dimensionierung der anzuschließenden Hohlprofile variieren. Ein solches Verbindungselement hat aufgrund seiner massiven Ausführung mit großen Wanddicken eine hohe Steifigkeit und wegen des verwendeten Materials Aluminium auch ein vergleichsweise geringes Gewicht, in einer Stahlgußausführung wäre aber sein Gewicht für einen Fahrzeugleichtbau zu groß.In addition to such connecting elements made of sheet steel, there are connecting elements made of aluminum which are made from sections of an extruded profile (US Pat. No. 5,767,476). The individual sections each form a profile body with a central box-like part and several pairs of parallel flanges pointing radially outwards. While radially connectable hollow profiles can be inserted between the flanges, a connection profile can be inserted axially into the box-like part to form a three-dimensional knot. A welded connection is also required for the cohesion of the hollow profiles to be connected and held together on the profile body. For this purpose, sheet metal blanks arranged on both sides of the merged connection profiles are used, to which the individual hollow profiles to be connected are welded. Such a construction is complex because of the many sheet metal blanks to be welded on. Like the other known steel sheet connector this connection element is also set to a very specific connection configuration. It cannot be varied by simple measures with regard to the connection angle and the dimensioning of the hollow profiles to be connected. Such a connecting element has a high degree of rigidity due to its massive design with large wall thicknesses and also a comparatively low weight due to the aluminum used, but in a cast steel version its weight would be too great for lightweight vehicle construction.
Der Erfindung liegt die Aufgabe zugrunde, ein Verbindungselement der eingangs genannten Art zu schaffen, das ohne großen Fertigungsaufwand herzustellen ist, ohne großen Aufwand an verschiedene Kon igurationen der anzuschließenden Hohlprofile (Winkel und Dimensionierung) anpaßbar ist und mit den angeschlossenen Hohlprofilen als Knoten eine hohe Steifigkeit aufweist. Insbesondere soll es auch aus höherfesten Stahlwerkstoffen ohne Probleme gefertigt werden können.The invention has for its object to provide a connecting element of the type mentioned, which is easy to manufacture, can be easily adapted to various con igurations of the hollow profiles to be connected (angle and dimensioning) and with the connected hollow profiles as nodes a high rigidity having. In particular, it should also be possible to manufacture it from high-strength steel materials without problems.
Diese Aufgabe wird erfindungsgemäß dadurch gelöst, daß das Verbindungselement als ein aus zwei Gurten und mindestens einem die Gurte auf Abstand haltenden Steg gebildeter Profilkörper ausgebildet ist, dessen beide Gurte mit ihren Enden gegenüber dem bzw. den Stegen überstehen und mit diesen Überständen paarweise parallele Flansche als Anschlußsteckverbindungen bilden.This object is achieved in that the connecting element is designed as a profile body formed from two belts and at least one web holding the belts at a distance, the two belts of which protrude with their ends opposite the web or webs and with these projections parallel flanges as Form connector connections.
Ein solches Verbindungselement ist konstruktiv einfach gestaltet und lässt sich auch mit der Zielrichtung Leichtbau für Fahrzeuge aus höher- bis hδchstfesten Stählen problemlos herstellen. Mit höherfesten Stählen lassen sich im Vergleich zu Gusskörpern Profilkδrper mit dünneren Wandstärken und damit auch bei gleicher Steifigkeit leichtgewichtigere Profilkörper realisieren. Das Verbindungselement kann als Einzelteil gefertigt sein, vorzugsweise ist es aber aus Gründen einer kostengünstigen Fertigung aus einem Endlosprofil als Abschnitt gefertigt. Die Flansche erlauben einen Toleranzausgleich der anzuschließenden Hohlprofile in' mehrfacher Hinsicht, und zwar einerseits dadurch, daß die Hohlprofile mehr oder weniger tief zwischen oder auf die Flansche gesteckt werden, anderseits vor allem bei zwischen den Flanschen eingesteckten Hohlprofilen dadurch, daß sie zwischen den Flanschen verschwenkt werden können, weil der Raum zwischen den Flanschen seitlich offen ist. Der seitlich offene Raum erlaubt es auch, daß mit ein und demselben Verbindungselement Hohlprofile in gestreckter Lage, aber auch in Winkellage oder sogar parallel miteinander zu verbinden. Darüber hinaus erlauben die parallelen Flansche auf einfache Art und Weise eine Einstellung auf bestimmte Anschlußwinkel und Dimensionen der anzuschließenden Hohlprofile, indem die Flansche mehr oder weniger stark abgewinkelt werden. Je nach Lage der Knickstelle kann der Abstand der parallelen Flansche, die die Anschlußsteckverbindungen bilden, variiert werden. Außerdem bildet das erfindungsgemäße Verbindungselement mit den eingesteckten aber auch aufgesteckten Hohlprofilen große Überlappungsflächen, die auch bei dünnwandigen Stahlblechen die Anwendung aller üblichen Fügetechnologien problemlos ermöglichen.Such a connecting element is structurally simple and can also be aligned with the target Manufacture lightweight for vehicles from high-strength to ultra-high-strength steels without any problems. Compared to castings, higher-strength steels can be used to produce profile bodies with thinner wall thicknesses and thus, with the same rigidity, lighter profile bodies. The connecting element can be manufactured as an individual part, but it is preferably manufactured as a section from an endless profile for reasons of cost-effective production. The flanges allow a tolerance compensation of the hollow profiles to be connected in ' several respects, on the one hand by the fact that the hollow profiles are inserted more or less deeply between or on the flanges, and on the other hand especially when the hollow profiles are inserted between the flanges by pivoting between the flanges because the space between the flanges is open on the side. The laterally open space also allows hollow profiles to be connected with one and the same connecting element in an extended position, but also in an angular position or even in parallel. In addition, the parallel flanges allow adjustment to certain connection angles and dimensions of the hollow profiles to be connected in a simple manner, in that the flanges are angled to a greater or lesser extent. Depending on the location of the kink, the distance between the parallel flanges that form the connector plug connections can be varied. In addition, the connecting element according to the invention, with the inserted but also plugged-on hollow profiles, forms large overlap areas, which also apply to thin-walled ones Steel sheets enable the application of all common joining technologies without any problems.
Nach einer Ausgestaltung der Erfindung besteht der Profilkörper aus einem Abschnitt eines Endlosprofils. Dabei kann der Profilkörper aus mehreren Teilen gefügt. Besonders gut ist als Profilköper ein Abschnitt eines Davex-Profils geeignet. Davex-Pro ile eignen sich wegen ihrer speziellen Fügetechnologie besonders gut für die Herstellung von Profilen aus höherfesten Stahlblechzuschnitten. Auch können dabei verschiedene Wekstoffe, insbesondere Stahlgüten, mit der Zielrichtung Leichtbau kombiniert werden. Alternativ zu dem aus mehreren Blechzuschnitten gefügten Profilkδrper, z. B. einem Davex-Profil , kann der Profilkörper ein aus einem Blechzuschnitt hergestelltes Profilwalzteil sein. Die Herstellung von Profilkörpern aus Abschnitten eines durch Profilwalzen oder Rollprofilieren geformten Endlosprofils ist nicht nur kostengünstig, sondern erlaubt ebenso den problemlosen Einsatz von höherfesten Stahlgüten.According to one embodiment of the invention, the profile body consists of a section of an endless profile. The profile body can be assembled from several parts. A section of a Davex profile is particularly suitable as a profile body. Due to their special joining technology, Davex profiles are particularly well suited for the production of profiles from high-strength sheet steel blanks. Various materials, in particular steel grades, can also be combined with the goal of lightweight construction. As an alternative to the Profilkδrper joined from several sheet metal blanks, e.g. B. a Davex profile, the profile body can be made from a sheet metal blank. The production of profile bodies from sections of an endless profile formed by profile rolling or roll profiling is not only inexpensive, but also permits the problem-free use of high-strength steel grades.
Vorzugsweise weist der Profilkörper einen zentralen kastenartigen Teil auf. Durch einen Einsatzkörper in diesem kastenartigen Teil kann der Profilkörper ausgesteift sein.The profile body preferably has a central box-like part. The profile body can be stiffened by an insert body in this box-like part.
Wenn es um den Anschluß der Hohlprofile unter verschiedenen Winkeln und/oder mit unterschiedlicher Dimensionierung geht, kann, wie ausgeführt, die Anpassung über eine Abwinklung der Flansche eines Flanschpaares erfolgen. Über die Lage der Knickstellen kann die Länge der Flansche eingestellt werden. Damit die für die Steckverbindung wirksamen Endbereiche der Flansche das ein- oder aufgesteckte Anschlußprofil gleich weit überlappen, sind die Überstände, aus denen die Flansche gebildet sind, verschieden lang.When it comes to the connection of the hollow profiles at different angles and / or with different dimensions, the adjustment can be made, as stated, by angling the flanges of a pair of flanges. The length can be determined by the location of the kinks the flanges can be adjusted. So that the end regions of the flanges which are effective for the plug connection overlap the inserted or plugged-on connection profile to the same extent, the protrusions from which the flanges are formed are of different lengths.
Im folgenden wird die Erfindung anhand einer verschiedene Ausführungsbeispiele schematisch darstellenden Zeichnung näher erläutert. Im einzelnen zeigen:The invention is explained in more detail below with the aid of a drawing schematically illustrating various exemplary embodiments. In detail show:
Fig. 1 ein aus flachen Stahlblechzuschnitten gefügtes Verbindungselement mit verschieden langen Flanschen in Ansicht in axialer Richtung,1 is a joining element made of flat sheet steel blanks with flanges of different lengths in a view in the axial direction,
Fig. 2 das Verbindungselement gemäß Fig. 1 mit zwei zwischen abgewinkelten Flanschen eingesteckten Hohlprofilen zur Bildung eines zweidimensionalen L-Knotens in Ansicht in axialer Richtung des Verbindungselementes ,2 shows the connecting element according to FIG. 1 with two hollow profiles inserted between angled flanges to form a two-dimensional L-node in a view in the axial direction of the connecting element,
Fig. 3 das Verbindungselement gemäß Fig. 1 mit zwei zwischen abgewinkelten Flanschen eingesteckten Hohlprofilen zur Bildung eines seitlich versetzten L-Knotens in Ansicht in axialer Richtung des Verbindungselementes,3 shows the connecting element according to FIG. 1 with two hollow profiles inserted between angled flanges to form a laterally offset L-node in a view in the axial direction of the connecting element,
Fig. 4 das Verbindungselement gemäß Fig. 1 mit zwei zwischen abgewinkelten Flanschen eingesteckten, parallelen Hohlprofilen zur Bildung eines Parallel-Knotens in Ansicht in axialer Richtung des Verbindungselementes, Fig. 5 das Verbindungselement gemäß Fig. 1 mit zwei zwischen abgewinkelten Flanschen eingesteckten, parallelen Hohlprofilen zur Bildung eines Parallel-Knotens in einer zu Fig. 4 anderen Konfiguration in Ansicht in axialer Richtung des Verbindungselementes und4 shows the connecting element according to FIG. 1 with two parallel hollow profiles inserted between angled flanges to form a parallel node in a view in the axial direction of the connecting element, 5 shows the connecting element according to FIG. 1 with two parallel hollow profiles inserted between angled flanges to form a parallel knot in a configuration different from FIG. 4 in a view in the axial direction of the connecting element and
Fig. 6 das Verbindungselement gemäß Fig. 1 in abgewandelter Ausführung, und zwar mit gleich langen Flanschen und daran in gestreckter Lage angeschlossenen Hohlprofilen in Ansicht in axialer Richtung des Verbindungselementes .Fig. 6 shows the connecting element according to FIG. 1 in a modified version, with flanges of the same length and hollow profiles connected thereto in the extended position, in a view in the axial direction of the connecting element.
Das in Fig. 1 dargestellte Basisverbindungselement V ist aus einem Abschnitt eines aus mehrerenThe basic connecting element V shown in FIG. 1 is made up of one section and one of several
Stahlblechzuschnitten gefügten Endlos-Profils gefertigt. Das Profil besteht aus zwei mit Abstand voneinander angeordneten parallelen Stegen 1, 2 und zwei von diesen Stegen 1, 2 auf Abstand gehaltenen, parallelen Gurten 3, 4. Beide Gurte 3, 4, die mit den Stegen 1, 2 einen kastenartigen Teil 5 bilden, überragen den kastenartigen Teil 5 unter Bildung von zwei Paaren Flansche 3a, 4a, 3b, 4b mehr oder weniger weit, wobei der in der Figur 1 dargestellte obere Gurt 3 den kastenartigen Teil 5 weniger weit als der untere Gurt 4 überragt. Während das Verbindungselement V des Ausführungsbeispiels der Fig. 2 ein Profil mit einem im Querschnitt rec teckförmigen, kastenartigen Teil 5 für die Aufnahme eines aussteifenden Einsatzkörpers 5a (Vgl. Fig. 2) zeigt, sind auch andere Profile mit sechs- oder achteckigem Querschnitt des kastenartigen Teils 5 denkbar. Auf jeden Fall haben diese Profile überstehende Flansche 3a, 4a, 3b, 4b.Sheet steel blanks made of continuous profiles. The profile consists of two spaced-apart parallel webs 1, 2 and two parallel webs 3, 4 which are spaced apart by these webs 1, 2. Both webs 3, 4, which form a box-like part 5 with webs 1, 2 , protrude the box-like part 5 more or less far to form two pairs of flanges 3a, 4a, 3b, 4b, the upper belt 3 shown in FIG. 1 projecting beyond the box-like part 5 less than the lower belt 4. While the connecting element V of the embodiment of FIG. 2 shows a profile with a box-like part 5 with a cross-section for receiving a stiffening insert body 5a (see FIG. 2), others are also Profiles with a hexagonal or octagonal cross section of the box-like part 5 are conceivable. In any case, these profiles have projecting flanges 3a, 4a, 3b, 4b.
Für die Herstellung solcher Profile gibt es verschiedene Möglichkeiten. Bei dem in Fig. 1 dargestellten Beispiel handelt es sich z. B. um ein sogenanntes "Davex" -Profil mit einem Doppelsteg. Bei solchen Profilen sind die Stege 1, 2 in Nuten der Gurte 3, 4 eingesetzt und sind hier durch 'eine Quetschverbindung gehalten. Der Vorteil von Davex-Profilen besteht in der Fügetechnologie, die den Einsatz von optimal für den Leichtbau geeigneten Stählen nicht beschränkt, weil sie die Werkstoffe nicht wesentlich belastet. Allerdings sind auch andere Fügetechnologien, wie Schweißen, für aus Stegen und Gurten gefügte Profile möglich. Auch können geometrisch gleiche Profile durch Profilwalzen/Rollprofilieren eines Blechstreifens hergestellt werden. Auch bei dieser Fertigungstechnologie lassen sich problemlos höherfeste Stahlwerkstoffe zu einem Endlosprofil verarbeiten. Bei einem aus einem so hergestellten Profil hergestellten Profilkörper können zum Zwecke der Steifigkeitserhöhung flach aufeinanderliegende Teile des Profilkörpers geheftet sein.There are various options for producing such profiles. In the example shown in Fig. 1, it is z. B. a so-called "Davex" profile with a double web. In such profiles, the webs 1, inserted into grooves of the belts 3, 4, 2, and are held here by "crimping. The advantage of Davex profiles lies in the joining technology, which does not restrict the use of steels that are optimally suited for lightweight construction, because they do not significantly stress the materials. However, other joining technologies, such as welding, are also possible for profiles made from webs and belts. Geometrically identical profiles can also be produced by profile rolling / roll profiling a sheet metal strip. Even with this manufacturing technology, high-strength steel materials can be easily processed into an endless profile. In the case of a profile body produced from a profile produced in this way, parts of the profile body lying flat on top of one another can be tacked for the purpose of increasing the rigidity.
Bei den aus dem Basisverbindungselement V gebildeten Verbindungselementen VXι V2 der Ausführungsbeispiele der Figuren 2 bis 5 dienen die von den Überständen der Gurte 3, 4 gebildeten Paare von Flanschen 3a, 4a, 3b, 4b als Anschlußsteckverbindungen für insbesondere einzusteckende Hohlprofile 6 bis 13, in diesem Fall Vierkantprofile, z. T. verschieden dimensionierte Vierkantprofile. Dafür sind die Flansche 3a, 4a, 3b, 4b abgewinkelt. Über den Grad der Abwinklung lässt sich der eingeschlossene Winkel der Flansche 3a, 4a, 3b, 4b und zusätzlich über die Lage der Knickstelle auch die lichte Weite zwischen den Flanschen 3a, 4a, 3b, 4b an ein- und demselben Basisverbindungselement V gleich oder auch unterschiedlich entsprechend der Dimension des anzuschließenden Hohlprofils 6 bis 13 einstellen. Auch läßt dasselbe Verbindungselement Vx verschiedene Anschlußarten der Hohlprofile 6 bis 13 zu, wie die Figuren 2 bis 5 zeigen. Darüber hinaus erlauben die Flansche 3a, 4a, 3b, 4b beim Anschluß der Hohlprofile 6 bis 13 einen Toleranzausgleich, indem sie mehr oder weniger weit zwischen bzw. auf die Flansche 3a, 4a, 3b, 4b ein- bzw. aufgesteckt werden. Da sie seitlich offen sind, kann vor allem bei eingesteckten Hohlprofilen 6 bis 13 auch ein Toleranzausgleich bezüglich des Anschlußwinkels erreicht werden. Bei aufgesteckten Hohlprofilen 6 bis 13 ist der Grad eines solchen Toleranzausgleichs abhängig vom seitlichen Spiel der Flansche 3a, 4a, 3b, 4b in den Hohlprofilen 6 bis 13.In the case of the connecting elements V Xι V 2 formed from the basic connecting element V of the exemplary embodiments in FIGS. 2 to 5, the pairs of flanges 3a, 4a, 3b, 4b formed by the protrusions of the belts 3, 4 serve as connecting plug connections for hollow profiles 6 to 13 to be inserted in particular, in this case square profiles, e.g. T. differently dimensioned square profiles. For this, the flanges 3a, 4a, 3b, 4b are angled. The included angle of the flanges 3a, 4a, 3b, 4b and, in addition, the position of the kink, the clear width between the flanges 3a, 4a, 3b, 4b on one and the same basic connecting element V can be the same or else via the degree of the angling adjust differently according to the dimension of the hollow profile to be connected 6 to 13. The same connecting element V x also allows different types of connection of the hollow profiles 6 to 13, as shown in FIGS. 2 to 5. In addition, the flanges 3a, 4a, 3b, 4b allow a tolerance compensation when connecting the hollow profiles 6 to 13, in that they are inserted or plugged in more or less far between or on the flanges 3a, 4a, 3b, 4b. Since they are open on the side, tolerance compensation with regard to the connection angle can also be achieved, especially when hollow profiles 6 to 13 are inserted. In the case of plugged-on hollow profiles 6 to 13, the degree of such tolerance compensation depends on the lateral play of the flanges 3a, 4a, 3b, 4b in the hollow profiles 6 to 13.
Die Gurte 3, 4 des Verbindungselementes V, Vl f V2 der Ausführungsbeispiele der Fig. 1 bis 5 haben verschieden große Überstände zur Bildung der beiden Paare der Flansche 3a, 4a, 3b, 4b, was für dieThe straps 3, 4 of the connecting element V, V lf V 2 of the exemplary embodiments of FIGS . 1 to 5 have protrusions of different sizes to form the two pairs of flanges 3a, 4a, 3b, 4b, which is suitable for the
Anschlußkonfigurationen der Figuren 2 bis 5 insofern nützlich ist, als dann beide Flansche 3a, 4a, 3b, 4b die anzuschließenden Hohlprofile 6 bis 13 gleich weit überlappen. Dagegen haben die Gurte beim Verbindungselement V3 des Ausführungsbeispiels der Fig. 6 mit gestreckt verbundenen Hohlprofilen 14, 15 gleich lange Überstände. Neben dem dargestellten gestreckten Anschluß erlaubt dieses Verbindungselement V3 auch den Parallelanschluß der Hohlprofile 14, 15. Ebenso ist der beschriebene Toleranzausgleich möglich.Connection configurations of Figures 2 to 5 is useful insofar as both flanges 3a, 4a, 3b, 4b then overlap the hollow profiles 6 to 13 to be connected by the same amount. In contrast, the straps have Connecting element V 3 of the embodiment of FIG. 6 with elongated hollow profiles 14, 15 protrusions of equal length. In addition to the elongated connection shown, this connecting element V 3 also permits the parallel connection of the hollow profiles 14, 15. The described tolerance compensation is also possible.
Zur Verbindung der mit einem Verbindungselement Vι; V2, V3 zusammengesteckten Hohlprofile 6 bis 15, eignen sich verschiedene 'Fügetechnologien. Durch Kleben oder Lötenerhält man eine flächige Verbindung, so daß in der Fügezone ein sehr homogener Spannungszustand vorliegt und Spannungsspitzen vermieden werden. Darüber hinaus wird bei Anwendung dieser Technologien keine bzw. nur geringe Wärme erzeugt, so daß es zu keinen Aufhärtungen, Gefügeänderungen oder ähnlichem kommt. Vor allem bei Hohlprofilen mit kleinen Wandstärken bieten sich diese Fügetechnologien an, sowie bei Hohlprofilen, die durch einen Einsatzkörper aus Kunststoff versteift sind. Alternativ kann auch linienförmig gefügt werden durch Schweißen oder Löten. So kann im überlappten Bereich an der Stoßkante eine Schweißnaht gezogen werden oder zurückversetzt eine Durchschweißung erfolgen. To connect the with a connecting element V ι; V 2 , V 3 assembled hollow profiles 6 to 15, different 'joining technologies are suitable. A flat connection is obtained by gluing or soldering, so that a very homogeneous state of stress is present in the joining zone and stress peaks are avoided. In addition, when these technologies are used, little or no heat is generated, so that there is no hardening, structural changes or the like. These joining technologies are particularly suitable for hollow profiles with small wall thicknesses, as well as for hollow profiles that are stiffened by an insert made of plastic. Alternatively, it can also be joined in a line by welding or soldering. For example, a weld seam can be drawn in the overlapped area at the butt edge or a weld-through can be set back.

Claims

P A T E N T A N S P R Ü C H E PATENT CLAIMS
1. Aus Stahlblech bestehendes Verbindungselement (VI, V2 , V3) in Form eines Verbindungsknotens mit mindestens zwei Anschlußsteckverbindungen für insbesondere aus Stahlblech bestehende Hohlprofile (6 bis 15) , die Teile einer Rahmenstruktur einer Fahrzeugkarosserie bilden, d a d u r c h g e k e n n z e i c h n e t, d a ß das Verbindungselement (V, VI, V2 , V3 ) als ein aus zwei Gurten (3, 4) und mindestens einem die Gurte (3, 4) auf Abstand haltenden Steg (1, 2) gefügter Profilkörper ausgebildet ist, dessen beide Gurte (3, 4) mit ihren Enden gegenüber dem bzw. den Stegen (1, 2) überstehen und mit diesen Überständen paarweise parallele Flansche (3a, 4a, 3b, 4b) als Anschlußsteckverbindungen bilden.1. Made of sheet steel connecting element (VI, V2, V3) in the form of a connecting node with at least two connecting connectors for hollow steel profiles (6 to 15), in particular, which form parts of a frame structure of a vehicle body, characterized in that the connecting element (V, VI, V2, V3) is formed as a profile body which is made from two belts (3, 4) and at least one web (1, 2) which keeps the belts (3, 4) at a distance, the two belts (3, 4) of which are attached to them Project ends opposite the web (s) (1, 2) and form parallel flanges (3a, 4a, 3b, 4b) with these projections as connecting plug connections.
2. Verbindungs element nach Anspruch 1, d a d u r c h g e k e n n z e i c h n e t, d a ß der Profilkörper von einem Abschnitt eines Endlos- Profils gebildet ist.2. Connecting element according to claim 1, d a d u r c h g e k e n n z e i c h n e t, that the profile body is formed by a section of an endless profile.
3. Verbindungselement nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e t, d a ß der Profilkδrper aus mehreren Teilen (1, 2, 3, 4) gefügt ist. 3. Connecting element according to claim 1 or 2, characterized in that the profiled body is composed of several parts (1, 2, 3, 4).
4. Verbindungselement nach Anspruch 1 oder 2, d a d u r c h g e k e n n z e i c h n e , d a ß der Profilkörper ein Profilwalzteil ist.4. Connecting element according to claim 1 or 2, d a d u r c h g e k e n n z e i c h n e, d a ß the profile body is a profile rolling part.
5. Verbindungselement nach einem der Ansprüche 1 bis 4, d a d u r c h g e k e n n z e i c h n e , d a ß der Profilkörper einen zentralen kastenartigen Teil (5) aufweist.5. Connecting element according to one of claims 1 to 4, d a d u r c h g e k e n n z e i c h n e, that the profile body has a central box-like part (5).
6. Verbindungselement nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, d a ß kastenartige Teil (5) durch einen Einsatzkδrper (5a) ausgesteift ist .6. Connecting element according to claim 7, d a d u r c h g e k e n n z e i c h n e t, that a ß box-like part (5) is stiffened by an insert body (5a).
7. Verbindungs element nach einem der Ansprüche 1 bis 6, d a d u r c h g e k e n n z e i c h n e t, d a ß die Flansche (3a, 4a, 3b, 4b) mindestens eines Flansches gegenüber dem übrigen Profilkörper abgewinkelt sind.7. Connecting element according to one of claims 1 to 6, d a d u r c h g e k e n n z e i c h n e t, d a ß the flanges (3a, 4a, 3b, 4b) at least one flange are angled relative to the rest of the profile body.
8. Verbindungselement nach Anspruch 7, d a d u r c h g e k e n n z e i c h n e t, d a ß die Flansche (3a, 4a, 3b, 4b) verschieden lang sind.8. Connecting element according to claim 7, d a d u r c h g e k e n n z e i c h n e t, that the flanges (3a, 4a, 3b, 4b) are of different lengths.
9. Verbindungselement nach einem der Ansprüche 1 bis 3 , d a d u r c h g e k e n n z e i c h n e t, d a ß der Profilkörper aus einem Davex-Prof il gebildet ist 9. Connecting element according to one of claims 1 to 3, d a d u r c h g e k e n n z e i c h n e t, that the profile body is formed from a Davex profile
PCT/EP2002/012753 2001-11-30 2002-11-14 Connecting element made of sheet steel for hollow profiles also made of sheet steel, particularly a frame structure of a vehicle body WO2003045767A1 (en)

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