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The invention relates to a support crossbeam for an instrument panel to be assembled between two side elements of a frame of an automotive vehicle next to a front part of an interior. The crossbeam integrates several anchoring and supporting configurations for the steering column, several airbags, f

The invention relates to a support crossbeam for an instrument panel to be assembled between two side elements of a frame of an automotive vehicle next to a front part of an interior. The crossbeam integrates several anchoring and supporting configurations for the steering column, several airbags, fuse boxes, ventilation system elements, sound equipment, among others, and is obtained by pressure die-casting of a light metal alloy, such a magnesium alloy, in an elongated single part extending between first and second ends. This single part has an open cross-section general profile, adapted to be demolded in a transverse direction of the crossbeam, with at least one tubular portion with a cross-section closed in at least one of said first or second ends, adapted to be demolded in the longitudinal direction of the crossbeam.

대표청구항 ▼

The invention claimed is: 1. A support crossbeam for an instrument panel adapted to be assembled between two side elements of a frame of an automotive vehicle next to a front part of an interior, said support crossbeam being obtained by pressure die-casting of a light metal alloy and integrating se

The invention claimed is: 1. A support crossbeam for an instrument panel adapted to be assembled between two side elements of a frame of an automotive vehicle next to a front part of an interior, said support crossbeam being obtained by pressure die-casting of a light metal alloy and integrating several anchoring and supporting configurations, wherein the support crossbeam is formed by a single part having an elongated configuration and extending between first and second ends, said single part comprising a general profile having an open cross-section and first and second tubular portions having a closed cross-section located respectively in said first and second ends, and in that said general profile having said open cross-section includes at least one portion comprising a pair of spaced opposite walls, having respective longitudinal edges joined to corresponding longitudinal edges of a connecting wall, said opposite walls defining, together with said connecting wall, a substantially depressed U-shaped cross-section profile, wherein one of said opposite walls is an upper wall, the other one of said opposite walls is a lower wall, and the connecting wall is a bottom wall, and wherein the general profile having the open cross-section comprises several transverse ribbings, each having three edges respectively joined to said upper, lower and bottom walls in a position substantially perpendicular thereto. 2. The crossbeam according to claim 1, wherein said bottom wall has waviness defining a longitudinal groove the ends of which extend at least partly along the tubular portions. 3. The crossbeam according to claim 1, wherein said bottom wall has waviness defining a longitudinal groove the ends of which extend at least partly along the tubular portions, and in that the groove has at least one interruption to provide a planar portion with a hole for the passage of a fixing element. 4. The crossbeam according to claim 1, wherein at least one of said transverse ribbings comprises, next to a free edge thereof, appendages delimiting a hollow provided for housing a cable or wiring harness between them, at least one of said appendages being able to be riveted on said cable or wiring harness to fasten cable or wiring harness in said hollow. 5. The crossbeam according to claim 1, wherein said hollow forms part of a notch formed in the transverse ribbing, said notch being provided for locating and housing said cable or wiring harness at least partially. 6. The crossbeam according to claim 1, wherein said general profile having the open cross-section is adapted to be demolded in a transverse direction of the crossbeam and said first and second tubular portions having said closed cross-section are adapted to be demolded in the longitudinal direction of the crossbeam. 7. The crossbeam according to claim 6, further comprising at least one through hole obtained in the pressure die-casting operation, said through hole being oriented in said transverse direction of the crossbeam. 8. The crossbeam according to claim 6, further comprising at least one through hole obtained in the pressure die-casting operation, said through hole being oriented in said longitudinal direction of the crossbeam. 9. The crossbeam according to claim 1, wherein corresponding first and second anchoring flatbars are formed in the first and second ends, wherein said anchoring flatbars extend transversely and are adapted to be fixed respectively to said two side elements of said frame of said automotive vehicle. 10. The crossbeam according to claim 9, wherein said anchoring flatbars have a profile with a substantially L-shaped cross-section reinforced with ribbings and are adapted to be demolded partially in the longitudinal direction of the crossbeam, next to the corresponding tubular portions, and partially in the transverse direction of the crossbeam, next to the open cross-section general profile. 11. A support crossbeam for an instrument panel adapted to be assembled between two side elements of a frame of an automotive vehicle next to a front part of an interior, said support crossbeam being obtained by pressure die-casting of a light metal alloy and integrating several anchoring and supporting configurations, wherein the support crossbeam is formed by a single part having an elongated configuration and extending between first and second ends, said single part comprising a general profile having an open cross-section and first and second tubular portions having a closed cross-section located respectively in said first and second ends, and in that said general profile having said open cross-section includes at least one portion comprising a pair of spaced opposite walls, having respective longitudinal edges joined to corresponding longitudinal edges of a connecting wall, said opposite walls defining, together with said connecting wall, a substantially depressed U-shaped cross-section profile, wherein one of said opposite walls is an upper wall, the other one of said opposite walls is a lower wall, and the connecting wall is a bottom wall, and wherein at least one of the tubular portions comprises a front wall having appendages delimiting a hollow between them, provided for housing a cable or wiring harness, at least one of said appendages being able to be riveted on said cable or wiring harness to fasten the cable or wiring harness in said hollow. 12. The crossbeam according to claim 11, wherein said hollow forms part of a groove extending along at least part of said front wall of at least one of the tubular portions, said groove being provided for locating and housing said cable or wiring harness at least partially. 13. A support crossbeam for an instrument panel adapted to be assembled between two side elements of a frame of an automotive vehicle next to a front part of an interior, said support crossbeam being obtained by pressure die-casting of a light metal alloy and integrating several anchoring and supporting configurations, wherein the support crossbeam is formed by a single part having an elongated configuration and extending between first and second ends, said single part comprising a general profile having an open cross-section and first and second tubular portions having a closed cross-section located respectively in said first and second ends, and in that said general profile having said open cross-section includes at least one portion comprising a pair of spaced opposite walls, having respective longitudinal edges joined to corresponding longitudinal edges of a connecting wall, said opposite walls defining, together with said connecting wall, a substantially depressed U-shaped cross-section profile, wherein one of said side walls is an upper wall, the other one of said side walls is a lower wall, and the connecting wall is a bottom wall, and further integrating a pair of support legs extending transversely downwards from a central region, said support legs being connected to each other by a crossbeam and adapted to be fixed at their ends to a lower element of said frame of the vehicle. 14. The crossbeam according to claim 13, further integrating two steering column supporting configurations located between said central region and said second end of the single part, said steering column supporting configurations being formed by substantially symmetrical transverse mortises defined in said lower wall. 15. The crossbeam according to claim 14, further integrating at least one sound equipment supporting configuration; at least one knee airbag supporting configuration; at least one upper instrument panel supporting configuration; at least one central instrument panel supporting configuration; at least one first fuse box supporting configuration; at least one second fuse box supporting configuration; at least one front passenger airbag supporting configuration; at least one upper terminal box supporting configuration; and at least one first and one second ventilation element supporting configurations.