CROSS BEAM

The invention relates to a cross member according to & Nkulengu rail; the preamble of claim 1.

Cross member ordinarily consist of steel, aluminium or magnesium, wherein for the attachment of components to be placed thereto, such as the instrument panel, the steering column or an airbag, to the crossbeam Holder angeschwei & Nkulengu rail; ton or are screwed, at which the respective components are screwed. Here the mounting is relatively expensive, however.

Whereas therefore it is the task of the invention, to provide an improved cross-member.

This problem is solved by a cross member having the features of claim 1st Advantageous configurations are the object of the subclaims.

It & Nkulengu rail; a transverse support is provided, with a retainer disposed on the transverse support, with the aid of a component can be mounted on the transverse support, wherein the holder is formed integrally with the cross member. These simplified mounting, since a mounting of the holder on the transverse support is omitted. Also the tolerance can be held by the tool on the transverse support of the holder more closely, so that in particular tolerances in the field of vision can be reduced. Also attempting to reduce installation costs by reducing the number of components even the Logistikund.

The cross member is preferably a A hybrid component, in particular with one or two Metallkörpem, which preferably are formed in a bowl shape. The metal body are at least regionally inside and/or au & Nkulengu rail; en enclosed by plastic material, wherein the plastic and/or channels also a honeycomb structure, for example, for air guidance, may have.

Is on a base body by an injection-moulded section consisting of the holder Preferably, or a plastic formed in an over-molded area injected element, which also may be wholly or partially enclosed by plastic material. The preparation can take place in one operation with the production of the cross member.

Preferably, with its aid a guide for the the holder comprises profiled trim member having a degree of freedom in a direction on the transverse support. The degree of freedom in the longitudinal direction of the cross member extends preferably, but also other orientations are possible. In particular, in the case of a longitudinal extent of the degree of freedom can be minimized as a result of aging and fading distortion. Also possible are targeted Losund fixed bearing on the holder, so that an optimized attachment of a component on the transverse support is possible.

The holder is formed by a longitudinally extending undercut or a protruding profile. The undercut is preferably a T-groove, a V-groove or a dovetail-shaped groove, the protruding profile is preferably a T-, L-, Z-, U-profile, a swallowtail profile and/or a cylindrical or part-cylindrical profile. Further profile shapes are also possible.

A fixing device or part thereof is provided on the holder Preferably,. This device can be formed by mutually aligned openings, in which a pin is inserted.

Preferably, at least one stop is provided, which is part of a fixing device. It the stop as longitudinal guide formed at one end of the holder in the case of a can holder be provided. The abschlie & Nkulengu rail; fixing end may take place either on the other side or at another location.

Holder has a preferably resiliently formed, hook-shaped region on, which cooperates with another hook-shaped area, which is provided on the element to be attached to the holder. These allows for fast mounting and securing by means of snapping.

Such a cross member is preferably arranged in the cockpit of a motor vehicle, wherein an attachment of the instrument panel is provided by means of the retainer. To this end the holder extends preferably in longitudinal or transversal direction of the cross member. This allows simple and gro & Nkulengu rail; flat mounting the instrument panel on the transverse support.

Provided is a Impact protection device Prefers, which in case of need, especially in the case of an head impact the event of a crash, a displaceability of the component, in particular the instrument panel, allows on said cross beam, so that the passenger is protected against injury as well as possible. Here more track-dependently increase is preferably given a force required to shift, wherein the force in relation to the path preferably at least linearly, but preferably more quickly, i.e., for example, exponential, increases.

In the following the invention is explained in more detail with more embodiments, partially with reference to the drawing, explained in detail. In the drawing show:

Fig. 1

a top view of a cross-member to instrument panel,

Fig. 2

a transversely through the section shown schematically in certain sections, in the region II of the instrument panel of the transverse member and retainer portion 1 according to & Nkulengu rail Fig.; the first embodiment,

Fig. 3

a cross member with six schematically represented, holders formed integrally with the cross member,

Fig. 4

a cut-out of a crossbeam according to & Nkulengu rail; a further embodiment with holder and partially sDAF, component attached thereto is provided wherein a crash bar, and

Fig. 5

a cut-out of a crossbeam according to & Nkulengu rail; a further embodiment with Holder with Collision protection and partially sDAF, component attached thereto, wherein in the left part of the normal state and on the right of the state after an impact is represented with deformation, and

Fig. 6

a cutout of a two-piece cross member with substantially cylindrical half-shells according to & Nkulengu rail; a further embodiment, and

Fig. 7

a cutout of a two-piece cross member with substantially U-shaped half-shells according to & Nkulengu rail; a further embodiment, and

Fig. 8

a cut-out of a substantially Z-shaped half-shells transverse carrier by bivalve & Nkulengu rail according to; a further embodiment, and

Fig. 9

a cross section through the cross-beam of 8 Fig., and

Fig. 10

schematically Zundbowl surfacesXAchse inclined 8 with a cross beam according Fig. for.

A as a hybrid component 1 formed cross member, consisting of two interconnected sheet-metal half-shells (not shown in more detail), the 3 have a plastic structure, which is injected into the sheet-metal half-shells and in places round, according to points & Nkulengu rail; the first, in the embodiment shown in Figures 1 and 2 a holder formed in the form of a dovetail guide 5 on 4 3 integrated plastic structure, which serves for fastening the instrument panel 6. Holder present in transverse direction of the cross-member 5 extends 6 1st To facilitate the pushability of the instrument panel, more precisely of the said 6 on the instrument panel in the dove-tail groove 3 formed in a plurality of pieces one-or integrated counterpart for the open groove end is formed expanded plastic structure, such that an easy insertion and a centring without jamming is possible. The other groove end is closed with a stop, which is formed in such a way that it defines the end position of the instrument panel 6, so that the instrument panel is simply inserted up to the stop 6 during assembly. The fixing the instrument panel 1 is effected by means of a pin (not shown) in the transverse support 6, can be carried out but also on any other manner, for example by a clamping screw, a bolt or optionally also by a clip connection, wherein a part, for example an opening, on the transverse support and a part 1, for example a spring arm, the engages into the opening, to the instrument panel 6 is formed.

Gemä & Nkulengu rail; a second embodiment, the not represented in the drawing is, in one piece with the plastic structure is a T-shaped profile formed on the transverse support, in a correspondingly formed groove on a component to be placed on the transverse support, for example an instrument panel is introduced. The component Is from the side, slipped, such a fixing is effected by means of a pin, in an opening in the member, which is aligned with a second opening in the T-shaped profile upon precise positioning is introduced.

According to a variant of the second embodiment is, as in the second embodiment, a T-shaped profile formed on the transverse support, but this is by a double T-shaped metal insert, which is injected, reinforced, so that greater & Nkulengu rail; of forces can be accommodated. The function corresponds to remark example, however that of the second.

Gemä & Nkulengu rail; a second variant of the second embodiment is the metal insert I-shaped design, so that no metal reinforcement is provided in the transversal area. This configuration enables a rigid configuration in a direction and in-Z-direction (toward said cross beam) and a softer in + Z-direction (away from the crossbar) configuration.

As third embodiment is a zone with a L shape to the cross-piece projecting profile formed in one piece. It it can act by a part of the plastic structure is a completely formed portion of said cross member. Gemä & Nkulengu rail; a first variant is provided a metal insert is injected entirely within the plastic structure and according to & Nkulengu rail; a second variant the L-shaped projecting profile is formed by a metal profile on its one side into the plastic structure injected, wherein the metal profile may be, for example, L-or T-shaped design on the injected side.

Gemä & Nkulengu rail; a fourth embodiment is a Z-shaped profile integral with the plastic structure 1 to the transverse carrier 3 formed, as represented in Fig. 3 far left. In order to facilitate insertion of the profile and the laterally projecting end is formed shorter at the introductory end formed thinner. Equally itself can reduce the height in the installation direction. The component has L-shaped groove 1 be placed on the transverse carrier, whose dimensions are matched with those of the Z-shaped profile.

According to a fifth embodiment, as the second from the left is represented in the has 3 Fig. is-shaped profile provided a U, wherein the profile 1 is arranged on the transverse support in such a way that it is open and laterally overhanging edges. The member, which is to be mounted on the transverse support 1, an undercut groove points to. This embodiment corresponds to embodiment shown in the far right from its function, the flow 3 Fig. & Nkulengu rail according to; the two oppositely facing C-shaped profiles are provided.

Gemä & Nkulengu rail; 3 as a third from the left in the embodiment shown two are mirror images of each other Fig. arranged Z-shaped profiles provided, whose 1 remote from the cross-member to show legs towards each other. Between the two Z-shaped profiles is introduced a T-shaped profile is provided the on the component, the 1 is to be attached to the transverse carrier. This embodiment corresponds to the right thereof in Fig. From its function ago 3 embodiment shown, comprising two carbon-shaped profiles, are facing each other.

In the shown embodiment, as the second from the right in accordance with the is to the transverse carrier 3 Fig. 1 profile arranged double-T-shaped in configuration. The 1 be placed on the transverse carrier component has T-groove, the corresponding to those of the profile on the transverse support in their dimensions about 1.

Accordingly 3 variants to the embodiments shown of not of unspecified are reinforcing elements in the profiles provided in Fig., which extend at least in regions corresponding to the thick solid lines 3 and 3 are surrounded by the plastic structure in Fig. or only consist of plastic.

Gemä & Nkulengu rail; a further, in the embodiment shown in the drawing is not a plastic structure as a holder serving pocket formed, into which a counterpart of the structural member is inserted to the transverse carrier. The fixing can by means of a clip connection, a pin, by means of arrival bonding or otherwise. Gemä & Nkulengu rail; a reinforced design variant is the pocket, wherein a reinforcing insert in the plastic is injected or the metallic portion of the transverse beam is formed correspondingly. Alternatively, instead of a pocket also be constructed a tab.

In the case of a double-shell configuration, can also serve as a guide for the projecting collar cross beam essential structure of a component to be attached to the transverse carrier, said collar serves directly as a holder in conjunction with other elements, so that no holder to be attached to the transverse carrier subsequently, as in the State of the Art, have to be used. The profiled trim member has a groove on, into which the collar is inserted during assembly. The fixture can take place in a known manner. Zum simpler insertion of the collar and/or the groove can be chamfered on the collar to wider at the top or at a at a introduction introduction from the side be constructed laterally enlarged.

An example of a cross-member 6 is represented by two shells 10 existing in Fig.. In addition to the collar 11 are formed in the shells 5 10 holder. The holder 5 are in the present embodiment by the shape of a hexagon in cross-section or of a circle 10 carried out in the shells, wherein any configurations, especially other Polygonformen are possible.

The substantially semi-cylindrical shells of the 6 Fig. Alternatively to, in a cross-beam 7 is of two substantially U-shaped shells Fig. 10 with differently long legs outlined. Each is a holder 5 is in the form of a pocket in the upper region of the first, smaller shell 10 in cross-section, and in cross-section in the lower region of the second greater & Nkulengu rail; ear shell 10, formed. Alternatively, the two holder 10 be constructed only in one of the two shells may also.

In another, 8 represented in Fig. 1 of two Z-shaped shells variant that is the cross-member 10.1 is cut in the region of a holder 5 by the crossbar A Fig. shown in 9. By the lifting of a shell member 11 creates a holder 10 in the end region or in the region of the flange 5 is formed

Depending on the installed position of the crossmember in the vehicle, it is possible the formation of the holder 5 to be picked up from the holder to vote on the preferred mounting direction of a part. An example of this is schematically sketched in Fig. 10. A crossbeam Zund 10 with the surfaces of its shells 1 is inclined to the X-direction. The mounting direction of a part to be attached, indicated by an arrow, extends in the X direction. Zur simpler receiving 5 substantially in the X direction is oriented and the holder, whereby this with its receiving surfaces substantially inclined to the surfaces forming 10 of the cross-member to the said shells is cross beam axle or disposed.

A the collar corresponding projection, the serving as a holder, can also at any other Au & Nkulengu rail; enfläche of the cross-member by the plastic structure be constructed, reinforced or unreinforced, depending on the expected load.

The dimensions of the profiles of the holder and the counterparts can be formed according to demand on the component to be placed thereon, so that certain desired properties can be achieved, such as, in particular, a certain amount of clearance in a certain direction or a slackless and thus rigid links in a particular direction. These may, in particular for increasing the crash safety is targeted, so that, for example, the connection of the instrument panel in + Z-direction, provides & Nkulengu rail; t away from the crossbar, stiff, so no deflection can take place, such as for an airbag triggering necessary, and in-Z-direction, provides & Nkulengu rail; t toward said cross beam, may be formed so as to be deformable in a certain range, so that a certain level of protection in the event of an in-Z-direction is given head impact can be The Share a force-dependent manner, so that a can be avoided in normal operation Klappem. This is, for example, by an installation with friction in a range of the profile possible.

Fig. 4 shows a portion of a cross member 5 and 1 7 with moulded holder 5 comprises a part of a component attached thereto, here a Impact protection device 8. Holder, which ensures that in the event of a crash, in particular in the event of a head impact of an occupant of the vehicle, a certain, defined deformation, present a displacement of the component in the direction of the arrow 7 by a distance s is possible, may be significantly reduced, so that the injury risk.

To are chamfered at is in normal operation are provided to ensure safe fixation has a movability, the holder 5 an upwardly open U-shaped profile, wherein on the inner sides of the legs for receiving a broadened region of the fastening region of the component groove-like mounts 7, the upwardly that is to say on the component 7 towards, so that in the event of a crash, a continuous deformation of the holder 5 and/or a displacement of the fastening region of the component 7 and thus downwardly into the holder 5 into possible. The lower portion of the holder 5 has a width on, which corresponds to about the distance of the groove-shaped recesses from each other in the bottom of the groove 7 in the widest part of the fastening region or the width of the component.

The displacement of the component relative to the holder 7 by a degree of elasticity and/or plastic deformability 5 is ensured by an installation a surface 7 and 9 of the component on a bearing area of the retainer. When displacement 5 and 7 preferably elastically both the holder the component can, optionally also be deformed plastically.

Holder & Nkulengu rail 5 according to; the embodiment, also in a 8 to 5 represented following Fig. Impact protection device, which a displaceability about a load-dependent distance s of the component 1 to 7 on the transverse frame member enables in case of need. 7 corresponds to that of the preceding embodiment The configuration of the fastening region of the component. The function is essentially the same, as in the above-described embodiment, but is effected ausschlie & Nkulengu rail; protected when using an elastic deformation of the holder 5, which expands itself. The slope, which in its function of or corresponds to g. bevel, but in this case is significantly flatter, so that a continuous increase in force as a function of the given up to the stop of the bearing surfaces is deformation way. The displacement of the component relative to the holder 7 is 5 an installation on a bearing area of the retainer 9 of the component a surface 7.