DE202008017274U1 - Front axle, especially for motor vehicles - Google Patents

Abstract

Front axle carrier (10) for motor vehicles, in each case two spaced apart in the vehicle longitudinal direction (F) receptacles (12, 14) for the bearing points for pivotal mounting each one of two Radführungsgliedern, such as transverse or wishbone; and receptacles (16, 18) for attachment of the front axle (10) are provided as a prefabricated unit together with pre-assembled units on the vehicle body, and the below-mentioned recordings for
- the attachment of the steering gear (shots 20)
- the attachment of the stabilizer (pictures 22)
- the bearing of a pendulum support (pictures 24)
and the front axle carrier (10) is produced as a component which is integral with these receptacles (12, 14, 16, 18, 20, 22, 24) and which connects to one another, characterized in that at least some of the receptacles (12, 16, 20, 22 ) are integrated in the front axle carrier (10) in the manner of a truss via bar-shaped connecting elements (26).

Description

The The invention relates to a front axle for Motor vehicles according to the preamble of claim 1.

Such Carrier, also referred to as a stool, frame or subframe will be, after having aggregates or auxiliary aggregates provided as pre-assembled units or modules to vehicle superstructures, for example on the body and / or on longitudinal members attached to a vehicle.

A front axle according to the preamble of claim 1 is for example in the WO 2007/031060 A1 which originates from the same Applicant.

outgoing From this prior art, the invention is based on the object a front axle of the type mentioned in terms of to further optimize weight and costs without having to Optimization of the front axle carrier detrimental to the suspension kinematics effect.

Of the Invention is still based on the object, a front axle of the type mentioned above, which provides an improved Stiffness, in particular in the transverse direction, to those at the front axle attacking high static as well as dynamic forces intercept. In addition, such a front axle is particularly be formed flexurally and torsionally stiff.

A Another object of the invention is to be such To provide front axle, which is a particular high strength and high continuous loads, in particular also at its connection or connection points or recordings or recesses, endures.

A Another task here is a front axle to provide the type mentioned, occurring during driving Spring or damper forces as well as tensile and pressure impacts optimally absorbs or intercepts.

Of the Invention is still based on the object, a front axle to provide the type mentioned, which possible many parts for the chassis and / or drive, which are made Assembly, body load, comfort and stiffness requirements not directly attached to the body structure, receives. In particular, a generic front axle be prepared, which is particularly easy pre-assembly and the presetting or adjustment of these parts in a module allows and then particularly easily attached to the body structure can. In particular, the maintenance, repair, installation and Disassembly of these parts are facilitated. In addition, a front axle be provided of the type mentioned, the little Space in the vehicle takes up.

A Another object of the invention is to provide a generic Provide front axle, which the forwarding of noises and vibrations, in particular of unit vibrations, better dampens. In addition, he should meet the requirements of the natural frequency fulfill. In addition, such a front axle be provided, the optimized behavior in the event of a crash shows.

These Task is in a front axle of the aforementioned Art solved by the characterizing feature of claim 1. Further developments and advantageous embodiments of the invention will become apparent from the remaining claims.

Thereby, that at least some of the images about rod-shaped Fasteners integrated in the front axle carrier like a truss are, on the one hand material and therefore weight on the vehicle itself as well Fuel savings, on the other hand can be but also reduce the transport costs and the sprung masses.

The rod-shaped fasteners, the quasi materialless To limit subjects, provide the necessary Rigidity without adverse effect on the suspension kinematics. In this respect, the rod-shaped connecting elements also be referred to as rod-shaped stiffening elements.

If is spoken in the context of the present invention of recordings, this also includes recesses.

A Development of the invention provides that two, preferably four, more preferably six, more preferably eight, further more preferably ten of the receptacles via rod-shaped Fasteners integrated in the front axle carrier like a truss preferably directly connected to each other.

Thereby can advantageously continue to save weight, with obtained the required rigidity of the front axle remains. By such a configuration are optimal strength values to realize with the least possible use of materials.

Advantageous is provided that the rear in the direction of travel for storage each of the Radführungsglieder at least approximately vertically spaced to the vehicle longitudinal axis receiving members has, for encompassing mounting of the rear in the direction of travel Bearings on Radführungsglied, preferably each receiving member via at least one, preferably at least two rod-shaped Fasteners is integrated in the front axle. Such a low-material recording fulfills its task without negative influence on the required integration in the front axle carrier.

Preferably is at least one, preferably each recording member over a rod-shaped connecting element with a first receptacle for fastening means for fixing the front axle connected to the vehicle body.

A advantageous embodiment of the invention provides that at least a receiving member via a rod-shaped connecting element with the front in the direction of travel for storage each of the Radführungsglieder is connected, wherein the rod-shaped Connecting element preferably approximately in the vehicle longitudinal direction runs.

Conveniently, is provided that the front in the direction of travel recording Storage of each of the Radführungsglieder two at least approximately has receiving members spaced apart in the vehicle longitudinal axis, to the U-shaped bracket of the in the direction of travel Front bearing on Radführungsglied.

Of the Front axle has advantageously in the transverse direction between the front in the direction of travel recordings for storage of each of the Radführungsglieder at least one stiffening element, preferably in the form of a horizontal arranged surface element, on.

One Such stiffening element takes in the transverse direction on the acting on above recordings forces. As a result of that the stiffening element is formed flat, is also the rigidity of the front in the direction of travel of the recording the aforementioned recording with the smallest possible use of materials elevated. In addition, such a stiffening element in such a way be arranged that other units, in particular engine and transmission, can be positioned close to the front axle. It is so less space required.

The horizontally arranged surface element is preferably just trained. The pointing in the direction of travel edge of the surface element may additionally or alternatively a semi-oval Have indentation.

Farther is provided that the horizontally arranged surface element in a plane below that provided in the receiving members Bores is arranged.

aggregates especially the engine and transmission, can be so very close to the front axle Position so that less space is required in the vehicle is.

Preferably is a first receptacle for attachment of the front axle provided on the vehicle body, which is the rear in the direction of travel End of the front axle.

Preferably is a second receptacle for attachment of the front axle provided on the vehicle body, which integrated into a boom in the immediate area of the front in the direction of travel recording is arranged.

Of the Vorderachsträger advantageously has an approximate central, to the receptacle for the storage of the pendulum support at least partially subsequent and opposite the driving direction flared surface stiffening element on.

By Such a design is accompanied by optimum strength values to realize the least possible use of materials, wherein Such a configuration in particular vertical vibrations counteracts.

Preferably the planar stiffening element is at least partially bounded by reinforcing ribs.

Farther is provided that the planar stiffening element for opposite to the direction of travel back edge towards a kind of bead forms, which is hollow on the underside and has a V-shaped cross section.

By Such a design is accompanied by optimum strength values to realize the least possible use of materials.

The planar stiffening element advantageously has the opposite the direction of travel rear edge nodes on which at least individual, preferably several rod-shaped connecting elements converge.

A advantageous embodiment of the invention provides that the first Mounting for attaching the front axle to the vehicle body via at least one rod-shaped connecting element with the flat stiffening element is connected.

Farther it is advantageous that on the flat stiffening element at least one reinforcing rib is provided, which preferably in the vehicle longitudinal direction at least partially between the rear edge of the planar stiffening element and the mounting for the storage of the pendulum support is arranged.

Advantageous is the front axle of light metal, preferably made of an aluminum alloy. Furthermore, it may be advantageous be when the component in an aluminum casting process, preferably in the die casting process, particularly preferably in the horizontal casting or Tilting chill casting process.

A advantageous embodiment provides that the surface of the By the rod-shaped fasteners limited subjects in plan view of the front axle larger is not as in plan view of the front axle continuous surface of the front axle, preferably at least greater than that in plan view on the front axle non-continuous surface of the stiffening element.

Farther It is advantageous if the front axle only has two receptacles for attachment of the steering gear.

According to one Continuing education is provided that the recordings for the Mounting the steering gear and / or the recordings for the attachment of the stabilizer via webs to the rod-shaped Connecting elements are connected.

• – die Befestigung des Lenkgetriebes
• – die Befestigung des Stabilisators
• – die Lagerung einer Pendelstütze

und der Vorderachsträger als mit diesen Aufnahmen einstückiges und diese untereinander verbindendes Bauteil hergestellt ist, ist bevorzugt vorgesehen, dass die Aufnahmen derart miteinander verbunden sind, dass im Vorderachsträger gewichtsreduzierende Aussparungen in Form von Durchbrüchen und/oder einseitig offenen Aushöhlungen verbleiben, ohne dass die Fahrwerkskinematik nachteilig beeinflusst wird.In a front axle for motor vehicles, in each case two spaced apart in the vehicle longitudinal direction recordings for the bearings for pivotal mounting each one of two Radführungsgliedern, such as transverse or wishbone; and shots for attachment of the front axle as a prefabricated unit together with pre-assembled units are provided on the vehicle body, and at least one of the below-mentioned recordings for

• - The attachment of the steering gear
• - the attachment of the stabilizer
• - The storage of a pendulum support

and the front axle as one piece with these recordings and this interconnecting component is made, it is preferably provided that the recordings are interconnected such that remain in the Vorderachsträger weight-reducing recesses in the form of openings and / or open cavities, without the suspension kinematics disadvantageous being affected.

Furthermore, it is provided that at least some of the receptacles integrated at least partially via rod-shaped and / or sheet-like connecting elements in the front axle and / or each other are connected.

Farther it is provided that at least some of the shots at least partly via open profile-shaped connecting elements, especially those with essentially T, U, V, L, X, Y, S, Z and / or double T-shaped cross section, integrated and / or interconnected.

Farther is provided that the open profile-shaped connecting elements different, preferably horizontal or vertical, aligned are.

Conveniently, is provided that individual legs of the open profile Connecting elements are designed as reinforcing ribs.

Especially It is advantageous if the connecting elements additional Reinforcing ribs, straps, beads, beads, webs and / or have breakthroughs.

Preferably has the rear in the direction of travel recording for storage each the Radführungsglieder at least approximately vertically to the vehicle longitudinal spaced-apart receiving members for encompassing mounting of the rear bearing in the direction of travel on the wheel guide member, wherein the receiving members via a U-shaped Tab connected together and integrated in the front axle are.

Farther it is provided that the tab at least partially, preferably on its outside, has a reinforced edge.

Conveniently, is provided that the tab via at least one connecting element with a first attachment for fastening means for fixing the front axle is connected to the vehicle body.

Farther It is envisaged that the tabs with the first shots as well the first shots with each other over a single rod-shaped or open profile-shaped connecting element are connected, wherein the open profile-shaped connecting element preferably has a U-shaped cross-section.

Farther is provided that at the first recordings connecting with each other Connecting element, preferably on the contrary to the direction of travel pointing side, at least one, preferably two shots for Fastening means are provided for fixing the exhaust system.

Farther is provided that the shots for fasteners establishing the exhaust system and / or the first recordings in and / or on the opposite side of the direction of travel facing side wall, through one of the legs of the U-shaped connecting element is formed, and / or to and / or in an adjoining flat reinforcing lip are integrated.

Especially It is advantageous if the first recordings with each other connecting connecting element in and / or opposite to the direction of travel on its underside a flat, arranged substantially horizontally Reinforcing lip has.

Farther is provided that within the the shots, tabs and / or first recordings connecting profile-shaped connecting element Reinforcing ribs are provided, preferably straight or zigzag from one sidewall to the other sidewall and / or preferably of the in and / or on the one side wall arranged recordings preferably tilted and / or preferably in opposite directions to the opposite Lead sidewall.

Farther is provided that the connecting the receiving members tab over a connecting element with the arranged in the direction of travel recording is connected for the attachment of the steering gear.

Farther is provided that the receptacle for the attachment of the Steering gear via a preferably at least partially rod-shaped connecting element with the direction of travel arranged second receptacle for attachment of the front axle is connected to the vehicle body, which in turn preferably integrated in a boom directly with the in the direction of travel front receptacle for storage of each of the Radführungsglieder connected is.

It is advantageously provided that on which the receptacle for the attachment of the steering gear with the second receptacle or the connecting element connecting the boom, one of the receptacles for the attachment of the stabilizer is connected.

Farther is provided that the front in the direction of travel recording for storage each of the Radführungsglieder two at least approximately in the vehicle longitudinal axis spaced receiving members, the U-shaped bracket of the front in the direction of travel Bearing on Radführungsglied, which is a recording member preferably directly connected to the boom of the recording and the other pickup member within the short thigh one L-shaped tab, with its not having the receiving member End preferably connects to the boom, integrated is.

Preferably has the tab at least partially, preferably on its outside, a reinforced edge.

A Further development provides that the boom has a recess, which is introduced on one side or on both sides.

Preferably the boom has a continuous recess.

A advantageous embodiment of the invention provides that within the recess a receptacle for the attachment of the stabilizer is provided, the case of a continuous excavation preferably via a web to the inner wall of the boom is connected or in a non-continuous excavation integrated in the remaining area and preferably arranged directly on the inner wall of the boom and / or preferably provided with at least one stiffening rib with the or Inner walls or stiffening surfaces of the jib connected is.

expedient it is when the front axle in the transverse direction a the Having boom connecting stiffening element, in or on which the receptacle for the storage of the pendulum support is arranged.

Farther it is provided that the stiffening element rod-shaped is trained.

Preferably the stiffening element is open profile-shaped, in particular having a substantially T, U, V, or L-shaped cross section formed, wherein preferably the edges and edges of Reinforcing element are at least partially reinforced. Preferably, the stiffening element in the region of the receptacle for the support of the pendulum support at least one, preferably two, one to each side the recording and associated with this stiffening inclined surface on, preferably arranged by a substantially horizontally Part surface of the stiffening element opposite to the Driving direction drops down.

A Continuation provides that on the stiffening element on the in and / or opposite to the direction of travel side one or a plurality of horizontally arranged, planar reinforcing lips are arranged.

Advantageous is provided that the horizontally arranged reinforcing lip just trained.

Conveniently, is provided that the horizontally arranged reinforcing lip in a plane below that provided in the receiving members Bores is arranged.

Farther is provided that one of the shots for attachment the steering gear via a preferably rod-shaped Connecting element is connected to the stiffening element.

Farther is provided that the first receptacle for attaching the front axle on the vehicle body, the rear end of the front axle forms.

Advantageous It is envisaged that the recording for the storage of the Pendulum support in the direction of one of the first shots having extending connecting element and with this directly or indirectly connected.

Farther It is envisaged that the recording for the storage of the Pendulum support via a connecting element with a connected to the recordings for the attachment of the steering gear is.

Preferably has the stiffening element to the leading to the arms End nodes on which at least single, preferably several preferably rod-shaped connecting elements converge.

Farther It is envisaged that the front axle of light metal, preferably made of an aluminum alloy.

Advantageous is provided that the component in a light metal, preferably Aluminum casting process, particularly preferably in chill casting, is made.

Farther is provided that the surface of the through the fasteners limited recesses in plan view of the front axle is greater than that in plan view of the front axle non-continuous surface of the front axle.

According to one Further development of the invention is provided that the front axle has two receptacles for attachment of the steering gear.

Preferably is provided that the shots for attachment the steering gear and / or the recordings for attachment of the stabilizer to the rod-shaped connecting elements via Footbridges are tethered.

Preferably, the front axle according to the invention consists of an Al-casting alloy, as shown in the WO 2007/025528 A2 is disclosed. The disclosure of this publication is incorporated by express reference as belonging to the subject of the present application.

Preferably, the front axle is made of an Al-casting alloy, the at least five of the alloy components listed below Si: 2.5 to 3.3, preferably 2.7 to 3.1 wt .-% mg: 0.2 to 0.7, preferably 0.3 to 0.6 wt .-% Fe: <0.18, preferably 0.05 to 0.16 wt% Mn: <0.5, preferably 0.05 to 0.4 wt .-% Ti: <0.1, preferably 0.01 to 0.08 wt .-% Sr: <0.03, preferably 0.01 to 0.03 wt .-% other: <0.1% by weight and additionally containing Cr in an amount increasing the strength of the alloy as another alloying ingredient, each supplemented with Al at 100% by weight.

Preferably, the front axle is made of an Al-casting alloy, the at least five of the alloy components listed below Si: 2.5 to 3.3, preferably 2.7 to 3.1 wt .-% mg: 0.2 to 0.7, preferably 0.3 to 0.6 wt .-% Fe: <0.18, preferably 0.05 to 0.16 wt% Mn: <0.5, preferably 0.05 to 0.4 wt .-% Ti: <0.1, preferably 0.01 to 0.08 wt .-% Sr: <0.03, preferably 0.01 to 0.03 wt .-% Cr: 0.3 to 1.3, preferably 0.4 to 1.0, more preferably 0.5 to 0.8% by weight other: <0.1% by weight contains, and in each case to 100 wt .-% is supplemented with Al.

A such Al casting alloy is over the prior art stronger, tougher and ductile.

The preferably alloying of Cr in the order of magnitude mentioned leads to a significant improvement of the mechanical Properties that already in the cast state, but especially after Solution annealing and, if appropriate, outsourcing, too is recorded.

In particular, it has been found that by such chromium additives unwanted iron precipitates already in the casting state can be converted into a more favorable morphology.

For Chassis applications, especially for wheel-guiding Components, resulting in a total increased mechanical Characteristics.

The alloys of the invention can production-related contaminants, eg. Pb, Ni, Zn, etc., as well known to those skilled in the art.

A advantageous embodiment of the invention provides that in addition CuNi by simultaneous alloying as another alloying ingredient is included. It has been shown that sole copper or Nickel additions to no significant improvements lead mechanical properties. Simultaneous alloying Of copper and nickel, however, opens up new possibilities the application of the alloy, especially in the field outside of the chassis for temperature-stressed components.

The alloys according to the invention have one opposite known Al-casting alloys improved strength-elongation ratio on.

When Manufacturing process for workpieces, components or Parts for or in particular suspension parts of motor vehicles from the invention Casting alloy is basically a permanent casting method suitable. Due to the very good mechanical properties at highly stressed workpieces, components or parts are suitable especially the gravity chill casting and the low pressure chill casting as a manufacturing process. As be particularly preferred here the counterpressure die casting process (CPC process) has been pointed out.

It may also be advantageous if the alloy is grain-finely is. For this purpose, so-called grain refiners are added to the alloy. Grain refining is a melt treatment, taking the term "Grain refining" an artificial increase of the germ count in the melt is understood by introducing and distributing caused by foreign germs. This will especially a better feeding capacity due to improved mass feed, an improved mold filling and flowability, a reduction of susceptibility to porosity and Warm crack tendency and thereby increased ductility and a better surface finish of the casting alloy reached.

In order to achieve or further develop the advantages mentioned above, it is advantageous if the cast components are heat-treated, in particular with the following parameters: solution annealing 490 to 540 ° C for 1 to 10 h start 150 to 200 ° C for 1 to 10 h

For but it can also be advantageous for some applications just a one-step tempering, generally known as, for example, T4, T5 or 0.

A Increasing the strength of the cast pieces can be beneficial by Quenching the still hot castings in water be achieved instead of slow cooling in air.

Next the advantages already mentioned, the components of alloys according to the Invention have, is added that because of the missing Alloy components Cu and Zn the corrosion resistance is significantly increased. The product is also relatively inexpensive, because none of the same expensive alloying additives, such as z. As SE metals, it can be the usual Melting treatment are applied and it requires no special Effort for the separation of cycles. Likewise, for cost reasons, preferably no Ag used as an alloying ingredient.

It is also an excellent strength-strain ratio available with excellent pourability. The castability On the one hand, it makes one of the major mistakes known as a blowhole, free casting, on the other hand, the microstructure positively influenced in such a way that the number of internal Notches that reduce the elongation at break, as low as possible is held.

The Mold fillability also improves in the inventive presence of Cr.

The invention will be explained with reference to two embodiments, in the drawing are shown. In this show

1 a perspective view from above of a first embodiment of a front axle according to the invention in A) slightly shaded representation and B) as a line representation and

2 a perspective view from above of a second embodiment of a front axle according to the invention in A) slightly shaded representation and B) as a line representation.

The in the 1 and 2 illustrated front axle 10 for motor vehicles each comprise two spaced apart in the vehicle longitudinal direction F recordings 12 . 14 for the bearings for pivoting each one of two wishbones, not shown here. Furthermore, two first shots each 16 and two second shots 18 for fastening the front axle 10 provided on the vehicle body.

Every front axle carrier 10 also has a recording 24 for the storage of a pendulum support, not shown here and four shots 22 for the attachment of a stabilizer, not shown here.

The in 1 illustrated front axle 10 still has four shots 20 for the attachment of the steering gear, not shown here, while for in 2 illustrated front axle 10 advantageous already two shots 20 are sufficient for the attachment of the steering gear, not shown here.

According to the invention now at least one of the aforementioned recordings 12 . 16 . 20 and 22 via rod-shaped connecting elements 26 Truss-like in the front axle 10 integrated.

The rear in the direction of travel FR recording 12 for storage each of the wishbones has at least approximately vertically to the vehicle longitudinal axis F spaced receiving members 12a and 12b for encompassing mounting of the rear in the direction of travel FR bearing on the transverse link, not shown here. Such a configuration of the recording 12 is advantageous, the invention is based on this embodiment of the recording 12 but not limited. Important is the possible integration of a differently designed receptacle in the front axle by means of rod-shaped connecting elements.

The front in the direction of travel FR recording 14 for storage of each of the control arms has two spaced at least approximately in the vehicle longitudinal direction F receiving members 14a and 14b for U-shaped encompassing holder of the front in the direction of travel FR bearing on the transverse link, not shown here.

The front axle carrier 10 points in the transverse direction between the front in the direction of travel FR recordings 14 for supporting each of the transverse link at least one stiffening element in the form of a horizontally arranged, planar surface element 28 on, in a level below that in the recording members 14a and 14b provided holes 32 is arranged and pointing in the direction of travel FR edge semi-oval indentation 30 having.

The front axle carrier 10 points in the transverse direction between the front in the direction of travel FR recordings 14 or the adjoining cantons 34 also an additional stiffening rib 50 , erected vertically here, on which, in the horizontally arranged, flat surface element 28 passes.

In the aforementioned arms 34 is a second shot 18 for fastening the front axle 10 provided on the vehicle body.

The front axle carrier 10 also has an almost central, to the recording 24 for the storage of the pendulum support at least partially adjoining and opposite to the direction of travel FR expanding flat stiffening element 36 at least partially of reinforcing ribs 38 is limited. The flat stiffening element 36 forms opposite to the direction of travel FR rear edge towards a kind of bead 40 , which is hollow on the underside and V-shaped in cross-section.

On the flat stiffening element 36 is also at least one reinforcing rib 44 provided in the vehicle longitudinal direction F at least partially between the rear edge of the planar stiffening element 36 and the recording 24 is arranged for the storage of the pendulum support.

Each recording member 12a and 12b is now about two rod-shaped fasteners 26 in the front axle carrier 10 integrated. Deviating from this, the recording member 12a in 2 three rod-shaped connecting elements 26 on.

In both in 1 and 2 but the variants shown is the recording member 12a via a rod-shaped connecting element 26 with the front in the direction of travel FR recording 14 or the subsequent boom 34 connected, wherein the rod-shaped connecting element 26 preferably runs approximately in the vehicle longitudinal direction F.

The first shot 16 for fastening the front axle 10 on the vehicle body is in the in 1 and 2 illustrated embodiments arranged at different positions, so that the rod-shaped connecting elements 26 also different connection points, in particular with regard to the recordings 20 and 22 for the attachment of the steering gear and the attachment of the stabilizer.

In the in 2 illustrated embodiment, the planar stiffening element 36 at the opposite of the direction FR rear edge nodes 42 on, in which several rod-shaped connecting elements 26 converge.

This in 1 illustrated embodiment shows that the recordings 20 for the attachment of the steering gear and / or the recordings 22 for attaching the stabilizer also via bars 48 to the rod-shaped connecting elements 26 can be connected.

10

front axle

12

rear Mounting for storage Radführungsglied

12a

Warehouse receiving member

12b

Warehouse receiving member

14

front Mounting for storage Radführungsglied

14a

Warehouse receiving member

14b

Warehouse receiving member

16

1. Mounting for attaching the front axle to the vehicle body

18

Second Mounting for attaching the front axle to the vehicle body

20

Recordings for fastening a steering gear

22

Recordings for fixing the stabilizer

24

admission for storage of the pendulum support

26

rod-shaped fasteners

28

surface element

30

indentation

32

drilling

34

boom

36

flat stiffener

38

reinforcing rib

40

bead

42

junction

44

reinforcing rib

46

subject

48

web

50

stiffening rib

F

Vehicle longitudinal direction / axis

FR

direction of travel

Further developments and advantageous embodiments of the invention are disclosed below. The disclosure content results from the priority-based application DE 10 2007 053 159 , which are incorporated by express reference as belonging to the subject of the present application.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• WO 2007/031060 A1 [0003]
• WO 2007/025528 A2 [0077]
• - DE 102007053159 [0114]

Claims (25)

Front axle carrier ( 10 ) for motor vehicles, in which two in the vehicle longitudinal direction (F) spaced apart recordings ( 12 . 14 ) for the bearings for pivoting each one of two Radführungsgliedern, such as transverse or wishbone; and recordings ( 16 . 18 ) for fastening the front axle ( 10 ) are provided as a prefabricated unit together with pre-assembled units on the vehicle body, and the below-mentioned recordings for - the attachment of the steering gear (recordings 20 ) - fastening of the stabilizer (shots 22 ) - the bearing of a pendulum support (pictures 24 ) and the front axle ( 10 ) than with these recordings ( 12 . 14 . 16 . 18 . 20 . 22 . 24 ) is produced in one piece and this interconnecting component, characterized in that at least one of the receptacles ( 12 . 16 . 20 . 22 ) via rod-shaped connecting elements ( 26 ) Truss-like in the front axle ( 10 ) are integrated. Front axle carrier ( 10 ) for motor vehicles according to claim 1, characterized in that two, preferably four, more preferably six, more preferably eight, further particularly preferably ten of the receptacles ( 12 . 16 . 20 . 22 ) via rod-shaped connecting elements ( 26 ) Truss-like in the front axle ( 10 ), preferably directly connected to each other. Front axle carrier ( 10 ) for motor vehicles according to claim 1 or 2, characterized in that in the direction of travel (FR) rear receptacle ( 12 ) for supporting each of the wheel guide elements at least approximately vertically to the vehicle longitudinal axis (F) spaced receiving members ( 12a . 12b ), for encompassing mounting of the direction of travel (FR) rear bearing on the wheel guide member, wherein preferably each receiving member ( 12a . 12b ) via at least one, preferably via at least two rod-shaped connecting elements ( 26 ) in the front axle carrier ( 10 ) is integrated. Front axle carrier ( 10 ) according to one of claims 1 to 3, characterized in that at least one, preferably each receiving member ( 12a . 12b ) via a rod-shaped connecting elements ( 26 ) with a first shot ( 16 ) for fastening means for fixing the front axle ( 10 ) is connected to the vehicle body. Front axle carrier ( 10 ) according to one of claims 1 to 4, characterized in that at least one receiving member ( 12a . 12b ) via a rod-shaped connecting element ( 26 ) with the front in the direction of travel (FR) recording ( 14 ) is connected to the storage of each of the Radführungsglieder, wherein the rod-shaped connecting element is preferably approximately in the vehicle longitudinal direction (F). Front axle carrier ( 10 ) according to one of claims 1 to 5, characterized in that in the direction of travel (FR) front recording ( 14 ) for supporting each of the wheel guide members two at least approximately in the vehicle longitudinal axis (F) spaced receiving members ( 14a . 14b ), to the U-shaped encompassing holder of the front in the direction of travel (FR) bearing on the wheel guide. Front axle carrier ( 10 ) according to one of claims 1 to 6, characterized in that the front axle carrier ( 10 ) in the transverse direction between the front in the direction of travel (FR) recordings ( 14 ) for supporting each of the wheel guide elements at least one stiffening element, preferably in the form of a horizontally arranged surface element ( 28 ), having. Front axle carrier ( 10 ) according to claim 7, characterized in that the horizontally arranged surface element ( 28 ) is formed and / or pointing in the direction of travel (FR) edge of the surface element ( 18 ) a semi-oval indentation ( 30 ) having. Front axle carrier ( 10 ) according to claim 7 or 8, characterized in that the horizontally arranged surface element ( 28 ) in a level below that in the host families ( 14a . 14b ) ( 32 ) is arranged. Front axle carrier ( 10 ) according to one of claims 1 to 9, characterized in that a first receptacle ( 16 ) for fastening the front axle ( 10 ) is provided on the vehicle body, which in the direction of travel (VR) rear end of the front axle ( 10 ). Front axle carrier ( 10 ) according to one of claims 1 to 10, characterized in that a second Admission ( 18 ) for fastening the front axle ( 10 ) is provided on the vehicle body, which in a boom ( 34 ) integrated in the immediate area of the front in the direction of travel (F) recording ( 14 ) is arranged for storage of each of the Radführungsglieder. Front axle carrier ( 10 ) according to one of claims 1 to 11, characterized in that the front axle carrier ( 10 ) a central, to the recording ( 24 ) for the storage of the pendulum support at least partially subsequent and opposite to the direction of travel (FR) expanding flat stiffening element ( 36 ) having. Front axle carrier ( 10 ) according to claim 12, characterized in that the flat stiffening element ( 36 ) at least partially of reinforcing ribs ( 38 ) is limited. Front axle carrier ( 10 ) according to claim 12 or 13, characterized in that the flat stiffening element ( 36 ) to the opposite direction of travel (FR) the rear edge of a kind of bead ( 40 ), which is hollow on the underside and has an inverted V-shaped cross section. Front axle carrier ( 10 ) according to one of claims 12 to 14, characterized in that the flat stiffening element ( 36 ) at the opposite of the direction of travel (FR) rear edge nodes ( 42 ), in which at least individual, preferably several rod-shaped connecting elements ( 26 ) converge. Front axle carrier ( 10 ) according to one of claims 12 to 15, characterized in that the first receptacle ( 16 ) for fastening the front axle ( 10 ) on the vehicle body via at least one rod-shaped connecting element ( 26 ) with the planar stiffening element ( 36 ) connected is. Front axle carrier ( 10 ) according to one of claims 12 to 16, characterized in that on the flat stiffening element ( 36 ) at least one reinforcing rib ( 44 ) is provided, which preferably in the vehicle longitudinal direction at least partially between the rear edge of the planar stiffening element ( 36 ) and the recording ( 24 ) is arranged for the storage of the pendulum support. Front axle carrier ( 10 ) according to one of claims 1 to 17, characterized in that the front axle carrier ( 10 ) is made of light metal, preferably of an aluminum alloy. Front axle carrier ( 10 ) according to one of claims 1 to 18, characterized in that the component in an aluminum casting process, preferably in Kokillengussverfahren, particularly preferably in Kippkokillengussverfahren. Front axle carrier ( 10 ) for motor vehicles according to one of claims 1 to 19, characterized in that the surface of the by the rod-shaped connecting elements ( 26 ) limited subjects ( 46 ) in plan view of the front axle ( 10 ) is greater than that in plan view of the front axle ( 10 ) non-continuous surface of the front axle ( 10 ), preferably larger than in plan view of the front axle ( 10 ) non-continuous surface of the stiffening element ( 36 ). Front axle carrier ( 10 ) for motor vehicles according to one of claims 1 to 20, characterized in that the front axle carrier ( 10 ) two shots ( 20 ) has for fastening the steering gear. Front axle carrier ( 10 ) for motor vehicles according to one of claims 1 to 21, characterized in that the recordings ( 20 ) for the attachment of the steering gear and / or the recordings ( 22 ) for the attachment of the stabilizer to the rod-shaped connecting elements ( 26 ) over bridges ( 48 ) are connected. Front axle carrier ( 10 ) for motor vehicles according to the preamble of claim 1, characterized in that the receptacles are interconnected such that remain in the front axle weight-reducing recesses in the form of openings and / or cavities open on one side without the suspension kinematics being adversely affected. Front axle carrier ( 10 ) for motor vehicles according to one of claims 1 to 23 or according to the preamble of claim 1, characterized in that the front axle carrier ( 10 ) consists of an Al-casting alloy comprising at least five of the alloy components listed below Si: 2.5 to 3.3, preferably 2.7 to 3.1 wt .-% mg: 0.2 to 0.7, preferably 0.3 to 0.6 wt .-% Fe: <0.18, preferably 0.05 to 0.16 wt% Mn: <0.5, preferably 0.05 to 0.4 wt .-% Ti: <0.1, preferably 0.01 to 0.08 wt .-% Sr: <0.03, preferably 0.01 to 0.03 wt .-% other: <0.1% by weight contains, wherein in addition Cr is contained in a strength increasing the alloy increasing amount as a further alloying ingredient, in each case added to 100 wt .-% with Al. Front axle carrier ( 10 ) for motor vehicles according to one of claims 1 to 23 or according to the preamble of claim 1, characterized in that the front axle carrier ( 10 ) consists of an Al casting alloy containing at least five of the following alloying constituents:. Si: 2.5 to 3.3, preferably 2.7 to 3.1 wt .-% mg: 0.2 to 0.7, preferably 0.3 to 0.6 wt .-% Fe: <0.18, preferably 0.05 to 0.16 wt% Mn: <0.5, preferably 0.05 to 0.4 wt .-% Ti: <0.1, preferably 0.01 to 0.08 wt .-% Sr: <0.03, preferably 0.01 to 0.03 wt .-% Cr: 0.3 to 1.3, preferably 0.4 to 1.0, more preferably 0.5 to 0.8% by weight other: <0.1% by weight and in each case added to 100 wt .-% with Al.