DE102016223383A1 - Load transfer member - Google Patents

Abstract

Load transfer component having at least one force introduction region (3) which comprises a plastic introduction element (7) surrounded by a sheathing (8), and metallic protrusions (12) provided on the force introduction element (7), which are inserted in the sheath (8 ), wherein one or at least one in the force introduction element (7) embedded, metallic inserter (10) is provided, by means of which the one or more of the projections (12) are fixedly connected together.

Description

The invention relates to a load transfer component having at least one force introduction region, which has a force introduction element made of plastic encased in a sheath comprising a fiber and metallic protrusions provided on the force introduction element, which engage in the sheath.

A load transfer component forms, for example, a suspension link in a passenger car (PKW), wherein the suspension link kinematic points in a suspension connects and transmits movements and forces. For the introduction of forces in the suspension arms are provided on this force introduction elements, in which in particular joint functions are integrated. Suspension links may at least partially consist of composite material, wherein different methods for the integration of force introduction elements in a made of composite material load transmission component are known.

• - Korrosionsbeständigkeit: Zwischen Metall und Endlosfasern kann Kontaktkorrosion auftreten. Bisher wird diese Problematik insbesondere durch den Einsatz von Haftvermittlern bzw. durch die Einbringung einer Grenzschicht (Glasfaser-Textil) gelöst, was allerdings mit zusätzlichen Arbeitsschritten und Kosten verbunden ist.
• - Haftung: Die gewünschten Haftungseigenschaften zwischen den beiden Fügepartnern (Metallbauteil, E-FKV) werden z.B. durch teure Vorbehandlungsverfahren oder durch zusätzliche Formschlüsse an den Oberflächen der Fügepartner realisiert, wodurch hohe Kosten und lange Taktzeiten verursacht werden.
• - Ausdehnungskoeffizienten: Die beiden Fügepartner besitzen in der Regel unterschiedliche Ausdehnungskoeffizienten, was bei thermischen Belastungen und beim Abkühlen während der Fertigung oder im späteren Betrieb zu Eigenspannungen im Lastübertragungsbauteil führen kann, sodass z.B. die Klimawechselbeständigkeit nicht gewährleistet ist.
• - Inhomogene Materialeigenschaften: Es können Steifigkeits- und/oder Festigkeitssprünge durch unterschiedliche E-Module bzw. Zug- und Druckfestigkeiten der verwendeten Materialien auftreten. Beispielsweise wird bei einer Verbindung von einem Sheet Moulding Compound (SMC) oder Bulk Moulding Compound (BMC) mit einem E-FKV in der Regel nur ein Stoffschluss realisiert, da das SMC im ausgehärteten Zustand mit dem E-FKV verbunden wird. Durch den reinen Stoffschluss kann aber ein unangekündigtes, spontanes Versagen der Verbindung auftreten.

In the chassis technology, force introduction elements are frequently encountered, with multi-material connections in this area, in comparison to pure materials, enabling considerable weight savings with a simultaneously simple design. However, the currently used multi-material compounds also have several disadvantages. Although high strength can be achieved with a combination of a metal component with an endless fiber-plastic composite (E-FKV), the long-term stability may be limited due to the following points:

• - Corrosion resistance: Contact corrosion may occur between metal and continuous fibers. So far, this problem is solved in particular by the use of adhesion promoters or by the introduction of a boundary layer (glass fiber textile), which is associated with additional steps and costs.
• - Adhesion: The desired adhesion properties between the two joining partners (metal component, E-FKV) are realized, for example, by expensive pretreatment processes or by additional form-fitting on the surfaces of the joining partners, which causes high costs and long cycle times.
• - Expansion coefficients: The two joining partners usually have different coefficients of expansion, which can lead to residual stresses in the load transfer component during thermal stress and during cooling during manufacture or during subsequent operation, so that, for example, the climatic resistance is not guaranteed.
• - Inhomogeneous material properties: Stiffness and / or strength jumps can occur due to different E-modules or tensile and compressive strengths of the materials used. For example, in a compound of a Sheet Molding Compound (SMC) or Bulk Molding Compound (BMC) with an E-FKV usually only one material connection is realized because the SMC is connected in the cured state with the E-FKV. Due to the pure material connection but an unannounced, spontaneous failure of the compound can occur.

The WO 2009/003207 A1 discloses an arrangement for connecting an elongated member with another component, comprising a force introduction element with a side facing away from the further component and one of the further component side and a sheath element with a closed cross section, which surrounds the force introduction element at least partially and the force introduction element on the other Projecting component side facing away, wherein on at least a portion of the force introduction element on its outer surface facing the sheath element projections are provided which penetrate the sheath element at least partially, and the sheath element consists essentially of a fiber composite material, wherein the fibers contained in the fiber composite material in continuous form at least partially lie in the areas formed between the projections. The protrusions provided on the force introduction element can be connected to the force introduction element by gluing, screwing in or similar measures, which consists, for example, of a high-strength plastic or a fiber-reinforced plastic, wherein the protrusions can consist of other materials. The disadvantage of this is that the provision of the projections is connected to the force introduction element with a considerable effort.

Proceeding from this, the object of the invention is to be able to simplify the provision of the projections on the force introduction element.

This object is achieved by a load transfer component according to claim 1. Preferred developments of the load transfer component are given in the subclaims and in the following description.

The load transfer component comprises one or at least one force introduction region, which comprises a plastic force introduction element encased in a sheath comprising a fiber and provided on the force introduction element has metallic projections which engage in the casing, wherein one or at least one embedded in the force introduction element, metallic inserter is provided by means of which the one or more of the projections are firmly connected to each other.

In particular, because the one or more protrusions are fixedly connected to each other by the insert, the insert together with the one or more protrusions forms an independent component, e.g. Also referred to as Einlegerbauteil. Thus, by embedding the insert in the force input member, it is possible to simultaneously provide the one or more projections on the force input member. This is associated with significantly less effort than to fasten the metallic projections individually to the force introduction element made of plastic. Furthermore, the cost of producing the Einlegerbauteils can be kept relatively low, since this particular forms a purely metallic component and example meadow can be made of sheet metal.

According to one embodiment, the load-transfer component comprises a component body. In particular, the force introduction element, preferably fixed and / or rigid, is connected to the component body. The component body preferably comprises the sheath and / or is preferably formed by the sheath and / or connected thereto, in particular fixed and / or rigid. Advantageously, the component body comprises a core element, which is in particular sheathed by the sheath. The force introduction element, preferably fixed and / or rigid, is preferably connected to the core element. In particular, the force introduction element is positively connected to the core element.

The load transfer component is preferably provided for a vehicle and / or for a chassis of the or of a vehicle. In particular, the load-transfer component is a vehicle component, preferably a chassis component. Advantageously, the load-transfer component is installed or installed in the or a vehicle or in the or a chassis of the or a vehicle. For example, the load transfer member is a tie rod, a pendulum support, or a suspension link, such as a suspension link. a wishbone, a trailing arm, a wishbone or three-point link, a four-point link or another multi-point handlebars. The vehicle is in particular a motor vehicle, preferably a passenger car.

The sheath preferably has a plastic matrix in which the fibers of the sheath are embedded. The plastic matrix of the sheath is e.g. around a polymeric plastic matrix. Preferably, the plastic matrix of the sheath is a thermoplastic or thermosetting plastic matrix. The fibers of the sheath are preferably continuous fibers. For example, the fibers of the sheath of carbon and / or glass and / or aramid and / or basalt and / or other suitable fiber material. The sheath is preferably formed as a flat sheath and / or preferably forms a planar structure. In particular, the load transfer component and / or the or the at least one force introduction region comprises the casing.

The force introduction element preferably has a surface. This surface forms in particular an outer boundary surface of the force introduction element. Preferably, the force introduction element consists of a fiber-reinforced plastic, which in particular fibers, such. Short fibers and / or long fibers. The fibers of the fiber-reinforced plastic of the force introduction element consist e.g. of carbon and / or glass and / or aramid and / or basalt and / or of another suitable fiber material. The plastic of the force introduction element is e.g. a polymer. In particular, the plastic of the force introduction element is a thermoplastic or a duroplastic. The load transfer component preferably comprises the force introduction element.

The projections protrude or protrude in particular from the force introduction element and / or from the surface of the force introduction element. Preferably, the projections with their force introduction element facing the ends and / or end regions are arranged on or in the force introduction element. By way of example, the projections extend into the force introduction element with their ends and / or end regions facing the force introduction element. Preferably, the projections, in particular at their the force introduction element facing ends and / or end portions, fixed and / or rigidly connected to the force introduction element.

Preferably, the projections extend into the casing. The feature that the projections engage in the casing means in particular that the projections extend into the casing. Advantageously, however, the projections do not extend through the sheath. In particular, the projections end within the casing. Thus, penetration of moisture into the contact area between the protrusions and the cladding can be avoided, and hence occurrence of contact corrosion between the protrusions and the cladding fibers can be prevented. Preferably, the load transfer member comprises the projections.

The projections are preferably aligned and / or oriented perpendicular to the surface of the force introduction element. Alternatively, the projections are aligned and / or oriented obliquely to the surface of the force introduction element. For example, the projections with the surface of the force introduction element at an angle of 60 ° or 45 °. Advantageously, the projections are aligned parallel to each other and / or oriented. Furthermore, it is possible for the projections to be oriented and / or aligned differently, in particular relative to one another and / or to the surface of the force introduction element.

The projections preferably have at their ends facing away from the force introduction element in each case a head region. Preferably, the projections each have a foot region at their ends facing the force introduction element. Advantageously, the projections each have a shank region extending from the respective foot region to the respective head region.

Preferably, the projections and / or the shaft portions are each formed straight or approximately straight. For example, the projections and / or the shaft regions are each formed in a pin-shaped or needle-shaped manner. The projections and / or the shaft regions are preferably rectangular, cuboid, cylindrical, conical, mushroom-shaped or arrow-shaped. For example, the projections and / or the shaft regions each have a square, rectangular or circular cross section. Advantageously, each head region has the same geometric shape as the respective shaft region. Alternatively, the one or more of the head regions each have a geometric shape deviating from the geometric shape of the respective shank region. For example, the one or more head areas are spherical or hook-shaped or arrow-shaped.

According to a development, the projections are each formed as a pin or as a needle. The projections can also be designed as hooks or snap hooks. Advantageously, the projections are combined into several groups, wherein the projections of each group are preferably arranged to one, in particular straight, row. Preferably, the rows or more of the rows are parallel to each other.

The projections in particular have a distance from one another and / or are arranged at a distance from one another. Preferably, the protrusions are made of metal, for example of aluminum, of magnesium or of a ferrous material, such as e.g. Stole. For example, the projections of sheet metal, in particular of sheet metal.

Preferably, the or at least one insert forms together with the one or more projections or at least one independent and / or monolithic and / or separate and / or one-piece component, which is referred to in particular as Einlegerbauteil. Preferably, the one or more projections are positively and / or materially connected to the or at least one insert. For example, the one or more protrusions are welded, screwed, riveted or glued or connected by sintering to the or at least one insert. The joining of the one or more protrusions to the one or more inserts is e.g. by CMT welding or by selective laser melting (SLM). Advantageously go the one or more projections material homogeneous in or at least one insert. For example, the one or more protrusions are bent away from the one or more inserts. In particular, the one or more projections end with their ends facing the force introduction element and / or with their foot regions on the or at least one insert or in the region of or at least one insert. Advantageously, the load transfer component and / or the or the at least one force introduction region comprises at least one insert. In particular, the or the at least one insert is fixed and / or rigidly connected to the force introduction element.

Preferably, the or at least one insert is made of metal, for example aluminum, magnesium or a ferrous material, e.g. Stole. For example, the or at least one insert made of sheet metal, in particular of sheet metal.

Advantageously, the or at least one insert forms and / or comprises one or at least one planar component and / or one or at least one planar structure. Preferably, the or at least one insert from one or at least one sheet, which is in particular a stamped sheet metal. In the or at least one sheet metal, bendable or deflectable areas can be created, in particular by stamping, which can be bent away from the or at least one sheet and / or from the remaining area of the or at least one sheet to the or to form several protrusions. The one or more protrusions are preferably bent from the or at least one insert and / or from the or at least one sheet.

According to one embodiment, the one or more projections are arranged in a plurality, in particular straight, rows, which preferably run parallel to one another. The one or more In particular, protrusions are at a distance from one another and / or are arranged at a distance from one another.

According to a development, the force introduction element has an end section with a bearing eye, which extends, in particular along a bearing eye axis, into the end section and / or through the end section. The bearing eye is preferably a, in particular cylindrical, recess, which is preferably a continuous recess. Advantageously, the bearing eye and / or the recess is rotationally symmetrical with respect to the bearing eye axis. Preferably, the sheath and / or fibers of the sheath are or are passed around the end portion.

The bearing eye is preferably used for receiving a bearing, a joint, a connecting member or a shaft. Preferably, a bearing, a joint, a connecting component or a shaft is arranged and / or stored in the bearing eye. The joint is e.g. a ball joint or a ball and socket joint. The bearing is e.g. a rubber bearing or elastomeric bearing. The connection component is e.g. a bolt, a screw or a sleeve. The shaft is e.g. a shaft of the drive train and / or a propeller shaft of the or a vehicle. By means of the hinge or the bearing or the connecting component, the load transfer component is e.g. with one or another vehicle component, one or another chassis component, a wheel carrier, a steering knuckle, a roll stabilizer, a steering component, a vehicle body, a body part, a vehicle pillar, such as a vehicle body. a B-pillar, a subframe or subframe of the or a vehicle connected or connectable.

The force introduction element preferably has a connecting section adjoining the end section. The connection section extends in particular transversely to the bearing eye axis. Advantageously, the connection section, preferably transversely to the bearing axis, extends away from the end section. The force introduction element faces in particular the component body and / or the core element with its connection section. The force introduction element is preferably connected in or on or with its connection section to the component body and / or to the core element. Preferably, the or at least one insert and / or the one or more insert members and / or the one or more projections and / or part of the one or more projections is or are provided on or at least on the connection portion. The connection section is preferably wedge-shaped and can thus also be referred to as a wedge-shaped section. The connection section and / or wedge-shaped section tapers in particular with increasing distance to the bearing eye axis.

According to one embodiment, one or at least one embedded in the force introduction element, other metallic insert is provided by means of which other of the projections are firmly connected to each other. Preferably, the or at least one other insert is made of metal, for example of aluminum, of magnesium or of a ferrous material, such as e.g. Stole. For example, the or at least one other depositors made of sheet metal, in particular of sheet metal.

Preferably, the one or more other inserts forms together with the other projections or at least one independent and / or monolithic and / or separate and / or one-piece component, which is referred to in particular as another insert component. Preferably, the other projections are positively and / or materially connected to the one or more other depositor. For example, the other protrusions are welded, screwed, riveted or glued or connected by sintering to the or at least one other insert. The joining of the other protrusions to the or at least one other insert takes place e.g. by CMT welding or by selective laser melting (SLM). Advantageously, the other projections go material homogeneous in the or at least one other depositors over. For example, the other projections are bent from the or at least one other depositor. In particular, the other projections end with their ends facing the force introduction element and / or with their foot regions on the or at least one other inserter or in the region of or at least one other inserter. Advantageously, the load transfer component and / or the or at least one force introduction region comprises at least one other inserter. In particular, the or at least one other insert is fixed and / or rigidly connected to the force introduction element.

By way of example, the or at least one other inserter forms and / or comprises one or at least one planar component and / or one or at least one planar structure. Preferably, the or at least one other insert from one or at least one (other) sheet, which is in particular a stamped sheet metal. In the or the at least one (other) sheet metal, bendable or bendable areas can be created, in particular by stamping, which can be provided by the or at least one (other) sheet and / or the remaining area of the or at least one (other) Sheet metal bent can be used to form the other tabs. The other projections are preferably bent from the or at least one other inserter and / or from the or the at least one (other) sheet metal. To distinguish this (other) sheet from the aforementioned sheet, it may also be referred to as "other sheet". Alternatively, however, the term "(other)" may be omitted before the term "sheet", especially if no confusion is to be feared.

According to one embodiment, the other projections are arranged in a plurality, in particular straight, rows, which preferably run parallel to one another. The other projections in particular have a distance from one another and / or are arranged at a distance from one another.

The inserts are preferably arranged and / or configured symmetrically relative to one another with respect to a plane of symmetry encompassing the bearing eye axis. The inserts are and / or comprise in particular the one or more inserts and the at least one other inserter. Advantageously, the one or more other inserts and / or the at least one other insert component and / or the other projections and / or part of the other projections is or are provided on or at least at the connection portion.

• - der oder der wenigstens eine die oder die mehreren Vorsprünge fest miteinander verbindende Einleger hergestellt wird,
• - anschließend das Krafteinleitungselement hergestellt und dabei der oder der wenigstens eine Einleger in das Krafteinleitungselement eingebettet wird, sodass die oder die mehreren Vorsprünge von dem Krafteinleitungselement vorstehen, und
• - anschließend das Krafteinleitungselement mit der Ummantelung ummantelt wird, sodass die oder die mehreren Vorsprünge in die Ummantelung eingreifen.

The invention further relates to a method for producing the load transfer component, wherein

• - the or at least one of the one or more protrusions firmly interconnecting inserts is made,
• - Subsequently, the force introduction element produced while the or the at least one insert is embedded in the force introduction element, so that the one or more projections of the force introduction element project, and
• - Then the force introduction element is coated with the sheath, so that the or more projections engage in the sheath.

The method can be developed according to all embodiments explained in connection with the load transfer component. Furthermore, the load transfer component can be developed according to all embodiments explained in connection with the method.

Preferably, the or at least one insert is produced in the form of one or at least one component comprising the one or more projections, which component is or is an independent and / or monolithic and / or separate and / or one-piece component. This or this at least one component is or forms, in particular, one or at least one or the or at least one insert component.

According to a further development, the or at least one insert and / or the or at least one insert component is produced from a metal sheet in which, in particular by punching, bendable regions are created which are bent away from the metal sheet to form the one or more projections.

For example, the force introduction element is produced by injection molding, wherein the or at least one insert is in particular encapsulated with the plastic of the force introduction element and thereby embedded in the force introduction element. The injection molding takes place in particular in one and / or by means of an injection molding train. According to an alternative, e.g. for producing the force introduction element, a fiber-matrix semifinished product is provided and, in particular in and / or by means of a tool to the force introduction element, for example by hot pressing or extrusion molding, molded and / or formed, wherein, in particular at the same time, the or at least one depositors , preferably within and / or by means of the tool, is embedded in the force introduction element. According to the alternative, the force introduction element is preferably produced by hot pressing or extrusion molding. The tool is e.g. a shaping tool and / or a forming tool. In particular, the tool is a press shop train, for example a hot press train or an extrusion press tool. The fiber matrix semifinished product is e.g. a sheet molding compound (SMC), a bulk molding compound (BMC), a fiber-matrix semi-finished product made of long fiber reinforced plastic (LFT) or another suitable fiber matrix semifinished product.

According to one embodiment, the or at least one of the other protrusions firmly interconnecting other insert produced, after which the or the at least one other insert is embedded in the force introduction element in the manufacture of the force introduction element, so that the other projections project from the force introduction element. In particular, in the sheathing of the force introduction element with the sheathing, the force introduction element is encased in such a way with the sheath that the other protrusions also engage in the sheathing.

Preferably, the or at least one other insert in the form of one or at least one of the other projections is included Component, which is in particular an independent and / or monolithic and / or separate and / or one-piece component or forms. This or this at least one component is or forms in particular one or at least one or the or at least one other Einlegerbauteil.

The load transfer component and / or the multimaterial construction presented here, as well as their production method, solves in particular one or more of the problems mentioned in relation to the prior art. This approach preferably pursues the production of a hybrid force introduction element (eg short / long fiber plastic composite structure + metal connection structure), wherein during the production of the plastic component in the primary molding process one or at least one or more metallic inserts with one, preferably the projections , Connection structure are inserted.

This type of connection produces in particular a positive and cohesive connection with the sheathing and / or the externally attached continuous fibers of the sheath, which are preferably introduced in a separate process. The or at least one metallic insert is preferably enclosed by the plastic of the force introduction element in a defined region and preferably serves to reinforce at least one critical region in the short / long fiber-plastic composite component. In addition, the at least one inserter in particular prevents a spontaneous failure of the load-transfer component in the one or more critical areas. Advantageously, the or at least one insert further enables a form-fitting connection with the sheathing and / or continuous fibers of the sheath added in a later process.

• - Anzahl der Vorsprünge,
• - Ausrichtung der Vorsprünge (z.B. normal zur Oberfläche, 60°, 45° etc.),
• - Geometrie der Vorsprünge (z.B. rechteckig, zylindrisch, zylindrisch + Kugelkopf, Kegel, Pfeil etc.),
• - Integration von Funktion in die Vorsprünge (z.B. Schnapphaken, etc.).

Preferably, the structure of the or the at least one insert can be optimized depending on the load case. Depending on the load case / application, the following design changes can be made in particular:

• - number of protrusions,
• Orientation of the projections (eg normal to the surface, 60 °, 45 ° etc.),
• Geometry of the projections (eg rectangular, cylindrical, cylindrical + ball head, cone, arrow etc.),
• - Integration of function in the projections (eg snap hook, etc.).

• - Variante 1: Gestanztes Blech, von welchem in einem weiteren Schritt die Vorsprünge umgebogen werden,
• - Variante 2: Mehrere Drahteinzelstücke, die durch den Einleger miteinander in Reihe verbunden werden und die Vorsprünge bilden,
• - Variante 3: Verbinden der Vorsprünge mit dem Einleger durch Aufschweißen/Sintern (Cold-Metal-Transfer (CMT), etc.),
• - Variante 4: Verbinden der Vorsprünge mit dem Einleger durch generative Verfahren (Selective Laser Melting (SLM), etc.).

The one or more inlays can in particular be produced by different methods, some of which are given below:

• Variant 1: stamped sheet metal, from which the projections are bent in a further step,
• Variant 2: a plurality of pieces of wire which are connected in series by the insert and which form projections;
• Variant 3: bonding of the projections to the insert by welding / sintering (cold metal transfer (CMT), etc.),
• Variant 4: connecting the projections to the insert by means of generative methods (Selective Laser Melting (SLM), etc.).

• - Heißpressverfahren (SMC, BMC, LFT, etc.).
• - Spritzprozess (thermoplastisch, duroplastisch, etc.).

Preferably, the, preferably enclosing and / or three-dimensional shaping, polymer or polymer system of the force introduction element can be selected, for example, thermoplastic or thermosetting as required. Advantageously, fibers for increasing the strength are contained in the polymer or polymer system of the force introduction element. In order to align the position of the or at least one insert, in particular recesses are provided in a tool, by means of which the force introduction element is produced. Thus, the one or more inserters can in particular lie and be fixed only in a certain position. In terms of process technology, the variants can preferably be divided into the two following production methods:

• - Hot pressing process (SMC, BMC, LFT, etc.).
• - Spraying process (thermoplastic, thermosetting, etc.).

• - Herstellung des oder des wenigstens einen Einlegers und/oder Einlegerbauteils und eines SMC-Zuschnitts,
• - Einlegen der SMC-Masse und des oder des wenigstens einen Einlegers und/oder Einlegerbauteils in ein Werkzeug,
• - Schließen des Werkzeuges,
• - Aushärtung,
• - Öffnen des Werkzeuges,
• - Entnahme des Krafteinleitungselements,
• - Anbringen der außenliegenden Ummantelung und/oder Endlosfasern.

Below, by way of example, a plurality of process steps for producing a, in particular hybrid, force introduction element from SMC are indicated:

• The manufacture of the at least one insert and / or insert component and of an SMC blank,
• Inserting the SMC mass and the or at least one insert and / or insert component into a tool,
• - closing the tool,
• - curing,
• - opening the tool,
• Removal of the force introduction element,
• - Attaching the outer sheath and / or continuous fibers.

• - Anzahl der Vorsprünge,
• - Ausrichtung der Vorsprünge (z.B. normal zur Oberfläche, 60°, 45° etc.),
• - Geometrie der Vorsprünge (z.B. rechteckig, zylindrisch, zylindrisch + Kugelkopf, Kegel, Pfeil etc.),
• - Integration von Funktion in die Vorsprünge (z.B. Schnapphaken, etc.).

Examples of the choice and design of the construction of the one or more metallic inserts are given below. As above already described, the following parameters can be changed:

• - number of protrusions,
• Orientation of the projections (eg normal to the surface, 60 °, 45 ° etc.),
• Geometry of the projections (eg rectangular, cylindrical, cylindrical + ball head, cone, arrow etc.),
• - Integration of function in the projections (eg snap hook, etc.).

Below is an example of the choice of materials:
Depending on the requirements, it is possible to use different fiber types (eg carbon, glass, aramid, basalt, etc.) and different matrices (eg thermoplastic or duroplastic).

• - Krafteinleitungselement für die Integration eines Gummilagers,
• - Krafteinleitungselement für die Integration eines Kugelgelenks (z.B. Flanschgelenk),
• - Krafteinleitungselement im Antriebsstrang (z.B. Kardanwelle),
• - Hybrides Karosserieteil (z.B. B-Säule).

Some examples of possible applications of the load transfer component and / or the force introduction element are given below:

• - force introduction element for the integration of a rubber bearing,
• - force introduction element for the integration of a ball joint (eg flange joint),
• - force introduction element in the drive train (eg cardan shaft),
• - Hybrid body part (eg B-pillar).

• 1 eine perspektivische Ansicht eines Lastübertragungsbauteils gemäß einer ersten Ausführungsform,
• 2 eine perspektivische und teilweise transparente Darstellung eines Krafteinleitungsbereichs des Lastübertragungsbauteils, aus der ein von einer Ummantelung ummanteltes Krafteinleitungselement mit zwei Einlegern ersichtlich ist, die jeweils Vorsprünge aufweisen,
• 3 eine Seitenansicht des mit den Einlegern versehenen Krafteinleitungselements,
• 4 eine perspektivische Darstellung des mit den Einlegern versehenen Krafteinleitungselements in einem schematisch angedeuteten Werkzeug,
• 5 eine Draufsicht auf ein gestanztes Blech zur Herstellung eines der Einleger,
• 6 eine Seitenansicht des aus dem gestanzten Blech hergestellten Einlegers,
• 7 eine schematische Darstellung eines Beschichtungsvorgangs, in dem das Krafteinleitungselement mit der Ummantelung versehen wird,
• 8 eine Seitenansicht einer Abwandlung des aus dem gestanzten Blech hergestellten Einlegers,
• 9 eine Seitenansicht eines mit Einlegern gemäß einer zweiten Ausführungsform versehenen Krafteinleitungselements,
• 10 mehrere Teilansichten von Einlegern gemäß einer dritten, einer vierten, einer fünften und einer sechsten Ausführungsform und
• 11 eine Seitenansicht eines mit Einlegern gemäß einer siebten Ausführungsform versehenen Krafteinleitungselements.

The invention will be described below with reference to preferred embodiments with reference to the drawing. In the drawing show:

• 1 a perspective view of a load transfer member according to a first embodiment,
• 2 3 is a perspective and partially transparent representation of a force introduction region of the load transfer component, from which a force introduction element, which is surrounded by a sheath, can be seen, with two inserts, which respectively have projections,
• 3 a side view of the provided with the inserts force application element,
• 4 3 is a perspective view of the force introduction element provided with the inserts in a schematically indicated tool,
• 5 a top view of a stamped sheet metal for the production of one of the depositors,
• 6 a side view of the insert produced from the stamped sheet,
• 7 a schematic representation of a coating process in which the force introduction element is provided with the sheath,
• 8th a side view of a modification of the insert produced from the stamped sheet metal,
• 9 3 is a side view of a force introduction element provided with inserts according to a second embodiment,
• 10 a plurality of partial views of inserts according to a third, a fourth, a fifth and a sixth embodiment, and
• 11 a side view of provided with inserts according to a seventh embodiment of the force introduction element.

Out 1 is a perspective view of a load transfer member 1 according to a first embodiment, which is designed as a triangular link. The load transfer component 1 has a component body 2 with several force application areas 3 . 4 and 5 on, wherein in the force introduction area 5 a ball joint 6 is attached. The force application areas 3 and 4 each comprise an existing from fiber reinforced plastic force introduction element 7 which of a sheath 8th of the component body 2 sheathed, which consists of a continuous fiber reinforced plastic. The force introduction elements 7 are each with a bearing eye 9 provided, in which a rubber bearing can be introduced. The force application areas 3 and 4 are identical, so that subsequently only the force application area 3 is described.

2 shows a perspective and partially transparent representation of the force introduction region 3 , wherein two in the force introduction element 7 embedded, metallic inserts 10 and 11 are visible, each one of the force introduction element 7 projecting protrusions 12 respectively. 13 have, which are in the sheath 8th extend into it. The projections 12 are there by the depositor 10 firmly connected to each other, wherein the projections 13 through the depositor 11 are firmly connected. Furthermore, the depositors 10 and 11 identically formed.

The force introduction element 7 includes one with the bearing eye 9 provided end portion 14 and a subsequent to this, wedge-shaped connection section 15 which is perpendicular to a bearing axis 16 extends, along which the bearing eye 9 through the force introduction element 7 extends through. Furthermore, the connection section tapers 15 with increasing distance to the bearing eye axis 16 , The component body 2 includes one of the sheath 8th sheathed core element 17 , which in one in the connection section 15 provided recess 18 engages, which tapers with increasing distance to the bearing eye axis 16. The in the recess 18 engaging portion of the core element 17 fills the recess 18 within and also tapers with increasing distance to the bearing eye axis 16 , so that the force introduction element 7 positively with the core element 17 connected is. The depositors 10 and 11 are with respect to a bearing eye axis 16 comprehensive and only schematically indicated symmetry plane 19 arranged mirror-symmetrically.

Out 3 is a side view of the one with the inserts 10 and 11 provided force introduction element 7 of the force application area 3 in individual view. Further shows 4 a perspective view of the inserts 10 and 11 provided with the force introduction element 7 of the force application area 3 in a schematically indicated tool 20 , in and / or by means of which the force introduction element 7 is or has been produced.

According to a first variant, the force introduction element 7 produced by injection molding. These are the depositors 10 and 11 in the tool 20 positioned, after which a fiberized plastic in the tool 20 is injected, after its curing, the force introduction element 7 forms. During the injection of the plastic become the depositors 10 and 11 encapsulated by the plastic and thereby in the plastic and thus in the force application element 7 embedded. The tool 20 In this case, in particular, it is an injection molding tool.

According to a second variant, the force introduction element 7 produced by hot pressing. These are the depositors 10 and 11 in the tool 20 positioned. Furthermore, a fiber-matrix semi-finished product is provided, introduced into the tool and by means of the tool 20 to the force introduction element 7 reshaped, with the depositors 10 and 11 in the force introduction element 7 be embedded. The tool 20 is in this case, in particular a press train or hot press tool. Furthermore, the fiber-matrix semifinished product is, for example, a sheet-molding compound, a bulk molding compound or a fiber-matrix semifinished product made of long-fiber-reinforced plastic.

As in particular from 4 As can be seen, the projections 12 to several mutually parallel rows 21 arranged. Each of the rows 21 includes several of the protrusions 12 and in particular runs parallel to the bearing eye axis 16 , Here are the projections 12 every row 21 spaced apart. Thus, each row includes 21 several of the projections 12 that are spaced apart along a plane parallel to the bearing axis 16 extending straight lines are arranged. Further, the projections 12 every row 21 in particular aligned parallel to each other. Preferably, the projections 12 every row 21 perpendicular to the surface of the force introduction element 7 aligned. The depositor 11 is designed accordingly, so that the projections 13 to several mutually parallel rows 22 are arranged. Each of the rows 22 includes several of the protrusions 13 and in particular runs parallel to the bearing eye axis 16 , Here are the projections 13 every row 22 spaced apart. Thus, each row includes 22 several of the projections 13 that are spaced apart along a plane parallel to the bearing axis 16 extending straight lines are arranged.

5 shows a plan view of a stamped sheet metal 23 for making the insert 10. The sheet 23 includes several deflectable areas 24 used to form the projections 12 from the rest of the area 25 of the sheet 23 be bent, which in particular forms a base region of the sheet, which in the force application element 7 is embedded. A side view of the punched sheet metal 23 manufactured insert 10 is out 6 seen. To make it clear that the projections 12 by turning the areas 24 from the sheet 23 and / or the area 25 are formed behind the projections denoting reference numerals 12, the reference numerals 24 in brackets. The depositor 11 is produced accordingly.

Out 7 is a schematic representation of a coating process can be seen, in which the force introduction element 7 with the sheath 8th is provided. Shown here is just a depositor 10 comprehensive range of force application element 7 , As already mentioned, the sheathing exists 8th made of a continuous fiber-reinforced plastic whose endless fibers 26 in a step A in the direction of the arrows 27 on the force introduction element 7 be applied. The projections 12 thereby grab one of the endless fibers 26 formed fiber layer 31 which can be seen from step B following step A. In a step C following step B, the sheath is or becomes 8th finished. The jacket 8th further comprises a plastic matrix into which the continuous fibers 26 are embedded. The fiber layer 31 can already include in step A, the plastic matrix. Alternatively, the fiber layer 31 in step B or after step B, for example in step C, offset with the plastic matrix. After curing, the plastic matrix forms together with the continuous fibers 26 the casing 8.

8th shows a side view of a modification of the punched sheet metal 23 manufactured insert 10 Where are some of the deflectable areas 24 in one to the tabs 12 opposite direction are bent and opposite projections 28 form. The opposite projections 28 be in the production of the force introduction element 7 embedded in its plastic and increase the strength of the connection of the insert 10 with the material of the force introduction element 7 ,

9 shows a side view of one with inserts 10 and 11 According to a second embodiment provided force introduction element 7 wherein identical or similar features to the first embodiment are denoted by the same reference numerals as in the first embodiment. In contrast to the first embodiment, the projections 12 and 13 formed arrow-shaped and form hooks or snap hooks. Thus, the strength of the connection of the casing 8th with the projections 12 and 13 and / or with the force introduction element 7 increase. Apart from this difference, the second embodiment, in particular coincides with the first embodiment, so that reference is made to the description of the first embodiment for further description of the second embodiment. In particular, the inserts according to the second embodiment can replace the inserts according to the first embodiment.

10 shows several partial views of inserts 29 according to further embodiments. The depositors 29 differ from the depositors 10 and 11 according to the previous embodiments, in particular in that the projections 30 with the depositor 29 are welded. A third embodiment is shown in partial view D of 10 can be seen, after which the projections 30 have a ball head. Furthermore, a fourth embodiment of the partial view E of 10 can be seen, after which the projections 30 are designed as straight pins. The partial view F of 10 shows a fifth embodiment, according to which the projections 30 are provided with a tip. Finally, a sixth embodiment of the partial view G of 10 can be seen, after which the projections 30 are formed spherical. Each of the depositors 10 . 11 according to the first or second embodiment, by one of the depositors 29 according to 10 be replaced. Apart from that, the other embodiments agree according to 10 in particular with the first embodiment, so that for further description of the further embodiments, reference is made to the description of the first embodiment.

11 shows a side view of one with inserts 10 and 11 According to a seventh embodiment provided force introduction element 7 wherein identical or similar features to the first embodiment are denoted by the same reference numerals as in the first embodiment. In contrast to the first embodiment, the projections 12 of the depositor 10 different from each other and / or different to the surface of the force introduction element 7 aligned. Further, the projections 13 of the depositor 11 different from each other and / or different to the surface of the force introduction element 7 aligned. Apart from these differences, the seventh embodiment is particularly consistent with the first embodiment, so that reference is made to the description of the first embodiment for further description of the seventh embodiment. In particular, the inserts according to the seventh embodiment can replace the inserts according to the first embodiment. It should be noted, however, that according to the seventh embodiment, the projections of each row 21 . 22 can be aligned differently to each other. Further, according to the seventh embodiment, the protrusions of each row 21 . 22 also obliquely to the surface of the force introduction element 7 be aligned. Although the projections 12 and 13 according to 11 are formed pin-shaped, it is possible according to a modification, the projections arrow-shaped, so that they form hooks or snap hook, as already explained to the second embodiment.

LIST OF REFERENCE NUMBERS

1

Load transfer member

2

Component body of the load transfer component

3

Force introduction region of the load transfer component

4

Force introduction region of the load transfer component

5

Force introduction region of the load transfer component

6

ball joint

7

Force application element

8th

jacket

9

Bearing eye of the force introduction element

10

depositors

11

depositors

12

Projection / projections

13

Projection / projections

14

End portion of the force introduction element

15

Connecting portion of the force introduction element

16

Bearing eye axis

17

Core element of the component body

18

Recess in the connection section

19

plane of symmetry

20

Tool

21

Row of tabs

22

Row of tabs

23

sheet

24

bendable area of the sheet

25

remaining area of the sheet / base area of the sheet

26

continuous fibers

27

arrow

28

opposite projection / opposite projections

29

depositors

30

Projection / projections

31

fiber layer

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• WO 2009/003207 A1 [0004]

Claims (15)

Load transfer component having at least one force introduction region (3) which comprises a plastic introduction element (7) surrounded by a sheathing (8), and metallic protrusions (12) provided on the force introduction element (7), which are inserted in the sheath (8 ) engage, characterized by one or at least one (in the force introduction element 7) embedded metallic insert (10), by means of which the or more of the projections (12) are fixedly connected together. Load transfer component after Claim 1 , characterized in that the insert (10) together with the one or more projections (12) forms an independent and / or one-piece component. Load transfer component after Claim 1 or 2 , characterized in that the insert (10) consists of sheet metal (23) from which the one or more projections (12) are bent. Load transfer member according to one of the preceding claims, characterized in that the one or more projections (12) to a plurality of mutually parallel rows (21) are arranged. Load transfer component according to one of the preceding claims, characterized in that the force introduction element (7) has an end section (14) with a bearing eye (9) which extends into the end section (14) along a bearing eye axis (16) and / or through the end section (14). 14), and has a wedge-shaped connection section (15) adjoining the end section (14), which extends transversely to the bearing eye axis (16) and tapers with increasing distance to the bearing eye axis (16), wherein the insert (10) is provided at least at the connection portion (15). Load transfer component according to one of the preceding claims, characterized by another metallic insert (11) embedded in the force introduction element (7), by means of which other of the projections (13) are firmly connected to one another. Load transfer component according to Claims 5 and 6, characterized in that the inserts (10, 11) are arranged and / or designed symmetrically with respect to one another with respect to a plane of symmetry (19) encompassing the bearing eye axis (16). Load transfer component according to one of Claims 5 to 7 , characterized in that the sheath (8) and / or the fibers (26) of the sheath (8) are guided around the end portion (14). Load transfer member according to one of the preceding claims, characterized in that the fibers (26) of the sheath (8) are endless fibers. Load transfer component according to one of the preceding claims, characterized in that the casing (8) has a plastic matrix in which the fibers (26) are embedded. Load transfer component according to one of the preceding claims, characterized in that the force introduction element (7) consists of a fiber-reinforced plastic. Method for producing a load transfer component (1) according to one of the preceding claims, wherein the insert (10) which firmly connects the one or more projections (12) is produced, then the force introduction element (7) is produced and the insert (10) is inserted into the insert Force introduction element (7) is embedded, so that the one or more protrusions of the force introduction element (7) protrude, and then the force introduction element (7) with the sheath (8) is encapsulated, so that the one or more projections in the sheath (8) engage , Method according to Claim 12 Characterized in that the insert (10) in the form of a or the plurality of projections (12) comprising the component is manufactured. Method according to Claim 12 or 13 Characterized in that the depositor (10) from a sheet (23) is prepared in which deflectable by punching regions (24) are provided which are bent to form the or said plurality of projections (12) of the sheet metal (23) , Method according to one of Claims 12 to 14 , characterized in that for producing the force introduction element (7) a fiber matrix semifinished product is provided and converted to the force introduction element (7) by hot pressing, at the same time the insert (10) is embedded in the force introduction element (7).

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