WO2014087066A1 - Assembly comprising a motor vehicle front beam and two front shock absorbers made of sheet steel - Google Patents

Assembly comprising a motor vehicle front beam and two front shock absorbers made of sheet steel Download PDF

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Publication number
WO2014087066A1
WO2014087066A1 PCT/FR2013/052788 FR2013052788W WO2014087066A1 WO 2014087066 A1 WO2014087066 A1 WO 2014087066A1 FR 2013052788 W FR2013052788 W FR 2013052788W WO 2014087066 A1 WO2014087066 A1 WO 2014087066A1
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WO
WIPO (PCT)
Prior art keywords
hollow body
assembly
corrugations
motor vehicle
assembly according
Prior art date
Application number
PCT/FR2013/052788
Other languages
French (fr)
Inventor
Mario BRUNELLO
Carlos MURANO
Guillaume JUSTE
Yanina Soledad HALLAK
Original Assignee
Peugeot Citroen Automobiles Sa
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Peugeot Citroen Automobiles Sa filed Critical Peugeot Citroen Automobiles Sa
Priority to BR112015012212-4A priority Critical patent/BR112015012212B1/en
Priority to CN201380063094.0A priority patent/CN104918831A/en
Publication of WO2014087066A1 publication Critical patent/WO2014087066A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
    • B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
    • B60R19/24—Arrangements for mounting bumpers on vehicles
    • B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
    • B60R19/34—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means destroyed upon impact, e.g. one-shot type

Definitions

  • the present invention relates to an assembly comprising a front beam of a motor vehicle and two frontal impact absorbers intended to be each fixed between one of the two opposite ends of said front beam and a front end of one of the two side rails.
  • the invention also relates to a front face of the underbody of a motor vehicle comprising an assembly according to the invention.
  • Figure 1 is a perspective view of the front face of the underbody of a motor vehicle of a known type.
  • Figure 2 is a side view of the assembly shown in Figure 1.
  • the front face shown in FIG. 1 comprises a front beam 1 and two front impact absorbers 2, 3 which are each fixed between one of the two opposite ends 1a, 1b of the front beam 1 and a front end of the front beam. one of the two stretchers 4, 5 of the underbody of the vehicle.
  • the beam 1 and the two shock absorbers 2, 3 are aluminum, which reduces their mass and therefore that of the vehicle.
  • the two absorbers each consist of an aluminum hollow body of polygonal constant section.
  • the assembly beam 1 and absorbers 2, 3 must according to the current requirements collect frontal shocks at a vehicle speed equal to 16 km / h without significantly damaging the stretchers 4 and 5, so as to limit the costs of repairing the vehicle. Also known according to the patent FR 2 867 730 a shock absorbing steel beam assembly for a motor vehicle underbody.
  • each of the two shock absorbers is constituted by a hollow body made of sheet steel flared from front to rear, that is to say whose cross section increases from the front to the back.
  • this hollow body has corrugations whose flanks are transverse to the direction of the frontal shocks that the hollow body must absorb.
  • the object of the present invention is to reduce the manufacturing costs of the aluminum assemblies as shown in FIGS. 1 and 2 and to lighten the steel assemblies as described in the French patent above and to increase the performance of these sets.
  • an assembly comprising a front beam of a motor vehicle and two frontal impact absorbers intended to be each fixed between one of the two opposite ends of said front beam and a front end of the front beam.
  • one of the two stretchers, each of these two shock absorbers being constituted by a steel sheet forming a hollow body flared from front to rear, characterized in that said hollow body has corrugations whose flanks extend between the front and the back of said hollow body.
  • said hollow body is constituted by two sheet metal parts in the form of half-shells assembled to one another.
  • each of the two sheet metal parts of the hollow body comprises a portion comprising said corrugations located between two non-corrugated lateral parts.
  • said portion comprising said corrugations comprises between two and four corrugations
  • each of the two non-corrugated lateral portions comprises holes
  • said holes are substantially aligned and the section of these holes increases between the front and the rear of the hollow body constituting each shock absorber.
  • FIG. 3 is a view along the longitudinal axis of a motor vehicle of a beam and shock absorber assembly according to the invention attached to the front of the stretchers,
  • FIG. 4 is a perspective view of the hollow body of a shock absorber of the assembly according to the invention.
  • FIG. 3 shows a front beam assembly 7 and shock absorbers 8 according to the invention fixed at the front of two stretchers 5 of which only one is visible.
  • the front beam 7 is constituted by two pieces 7a, 7b of sheet steel fixed against each other.
  • Each of the two shock absorbers 8 located between the front beam 7 and the plate 6 fixed to the front of the two stretchers 5 is constituted by a steel sheet forming a hollow body flared from the front towards the back, as shown in Figure 4. According to the invention, this hollow body has corrugations 9, 10,
  • FIG. 4 also shows that the hollow body consists of two sheet metal parts 8a, 8b in the form of half-shells assembled to each other along a plane of symmetry of the hollow body forming each of the two shock absorbers 8.
  • this plane of symmetry P (see Figure 3) is located in the plane of the longitudinal and transverse axes X, Y of the vehicle.
  • each of the two sheet metal portions 8a, 8b of the absorber 8 comprises a part comprising the corrugations 9, 10, 1 1 or
  • the top of the corrugations 9, 10, 11 and 12, 13, 14 is located in a plane.
  • Each of the two parts respectively comprising the corrugations 9, 10, 1 1 and 12, 13, 14 comprises, in the example shown in Figure 4, three corrugations.
  • the number of these corrugations can vary for example between two and four.
  • FIG. 4 further shows that the two lateral portions not provided with corrugations each comprise holes 15, 16.
  • These holes 15, 16 are substantially aligned and their section increases between the front and the rear of the hollow body of flared shape constituting each of the two shock absorbers 8.
  • the assembly according to the invention has been compared with an aluminum assembly as shown in FIGS. 1 and 2.
  • the assembly according to the invention has the following advantages:
  • the corrugations formed on the hollow body make it possible to stiffen the hollow body, which makes it possible to use a sheet of steel of relatively small thickness making it possible to lighten each of the absorbers.
  • This lightening is also obtained through the holes 15, 16 formed on the two side portions of the hollow body constituting each of the two absorbers.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Body Structure For Vehicles (AREA)
  • Vibration Dampers (AREA)

Abstract

The invention relates to an assembly comprising a motor vehicle front beam (7) and two front shock absorbers (8) that are each intended to be fixed between one of the two opposite ends of said front beam (7) and a front end of one of the two side members (5), each of these two shock absorbers (8) being formed by a sheet of steel forming a hollow body flared from the front to the rear, characterized in that said hollow body has corrugations, the flanks of which extend between the front and the rear of said hollow body.

Description

ENSEMBLE COMPRENANT UNE POUTRE AVANT DE VEHICULE AUTOMOBILE ET DEUX ABSORBEURS DE CHOC FRONTAL EN TOLE  ASSEMBLY COMPRISING A FRONT BEAM OF A MOTOR VEHICLE AND TWO FRONTAL SHOCK ABSORBERS IN SHEET
D'ACIER  STEEL
La présente invention concerne un ensemble comprenant une poutre avant de véhicule automobile et deux absorbeurs de choc frontal destinés à être fixés chacun entre l'une des deux extrémités opposées de ladite poutre avant et une extrémité avant de l'un des deux brancards.  The present invention relates to an assembly comprising a front beam of a motor vehicle and two frontal impact absorbers intended to be each fixed between one of the two opposite ends of said front beam and a front end of one of the two side rails.
L'invention concerne également une face avant du soubassement d'un véhicule automobile comportant un ensemble selon l'invention.  The invention also relates to a front face of the underbody of a motor vehicle comprising an assembly according to the invention.
La figure 1 est une vue en perspective de la face avant du soubassement d'un véhicule automobile d'un type connu.  Figure 1 is a perspective view of the front face of the underbody of a motor vehicle of a known type.
La figure 2 est une vue latérale de l'ensemble représenté sur la figure 1 .  Figure 2 is a side view of the assembly shown in Figure 1.
La face avant représentée sur la figure 1 comprend une poutre avant 1 et deux absorbeurs 2, 3 de choc frontal qui sont fixés chacun entre l'une des deux extrémités opposées 1 a, 1 b de la poutre avant 1 et une extrémité avant de l'un des deux brancards 4, 5 du soubassement du véhicule.  The front face shown in FIG. 1 comprises a front beam 1 and two front impact absorbers 2, 3 which are each fixed between one of the two opposite ends 1a, 1b of the front beam 1 and a front end of the front beam. one of the two stretchers 4, 5 of the underbody of the vehicle.
Dans un mode de réalisation connu, la poutre 1 et les deux absorbeurs de chocs 2, 3 sont en aluminium, ce qui permet de réduire leur masse et par conséquent celle du véhicule.  In a known embodiment, the beam 1 and the two shock absorbers 2, 3 are aluminum, which reduces their mass and therefore that of the vehicle.
Cependant, l'utilisation de l'aluminium au lieu de l'acier pour fabriquer la poutre et les absorbeurs ci-dessus augmente leur coût.  However, the use of aluminum instead of steel to make the above beam and absorbers increases their cost.
De plus, l'aluminium est plus difficile à travailler que l'acier, ce qui grève encore davantage le coût de fabrication.  In addition, aluminum is more difficult to work than steel, which further increases the cost of manufacturing.
Dans le cas de l'exemple ci-dessus, les deux absorbeurs sont constitués chacun par un corps creux en aluminium de section constante polygonale.  In the case of the example above, the two absorbers each consist of an aluminum hollow body of polygonal constant section.
Entre chacun des absorbeurs 2, 3 et les brancards 4, 5 est située une plaque Between each of the absorbers 2, 3 and the stretchers 4, 5 is located a plate
6. 6.
L'ensemble poutre 1 et absorbeurs 2, 3 doit selon les prescriptions actuelles encaisser des chocs frontaux à une vitesse du véhicule égale à 16 km/h sans endommager significativement les brancards 4 et 5, de façon à limiter les coûts de réparation du véhicule. On connaît par ailleurs notamment selon le brevet FR 2 867 730 un ensemble poutre absorbeurs de choc en acier pour soubassement de véhicule automobile. The assembly beam 1 and absorbers 2, 3 must according to the current requirements collect frontal shocks at a vehicle speed equal to 16 km / h without significantly damaging the stretchers 4 and 5, so as to limit the costs of repairing the vehicle. Also known according to the patent FR 2 867 730 a shock absorbing steel beam assembly for a motor vehicle underbody.
Dans cet ensemble, chacun des deux absorbeurs de choc est constitué par un corps creux en tôle d'acier évasé de l'avant vers l'arrière, c'est-à-dire dont la section transversale augmente de l'avant vers l'arrière.  In this assembly, each of the two shock absorbers is constituted by a hollow body made of sheet steel flared from front to rear, that is to say whose cross section increases from the front to the back.
De plus, ce corps creux présente des ondulations dont les flancs sont transversaux par rapport à la direction des chocs frontaux que ce corps creux doit absorber.  In addition, this hollow body has corrugations whose flanks are transverse to the direction of the frontal shocks that the hollow body must absorb.
Le but de la présente invention est de réduire les coûts de fabrication des ensembles en aluminium tels que représentés sur les figures 1 et 2 et d'alléger les ensembles en acier tels que décrits dans le brevet français ci-dessus et d'augmenter la performance de ces ensembles.  The object of the present invention is to reduce the manufacturing costs of the aluminum assemblies as shown in FIGS. 1 and 2 and to lighten the steel assemblies as described in the French patent above and to increase the performance of these sets.
Ce but est atteint, selon l'invention, grâce à un ensemble comprenant une poutre avant de véhicule automobile et deux absorbeurs de choc frontal destinés à être fixés chacun entre l'une des deux extrémités opposées de ladite poutre avant et une extrémité avant de l'un des deux brancards, chacun de ces deux absorbeurs de choc étant constitué par une tôle en acier formant un corps creux évasé de l'avant vers l'arrière, caractérisé en ce que ledit corps creux présente des ondulations dont les flancs s'étendent entre l'avant et l'arrière dudit corps creux.  This object is achieved, according to the invention, thanks to an assembly comprising a front beam of a motor vehicle and two frontal impact absorbers intended to be each fixed between one of the two opposite ends of said front beam and a front end of the front beam. one of the two stretchers, each of these two shock absorbers being constituted by a steel sheet forming a hollow body flared from front to rear, characterized in that said hollow body has corrugations whose flanks extend between the front and the back of said hollow body.
Le fait de réaliser sur le corps creux en acier de chaque absorbeur des ondulations dont les flancs sont dirigés dans le sens des chocs frontaux permet de raidir l'absorbeur, c'est-à-dire augmenter sa résistance aux efforts.  The fact of producing on the hollow steel body of each absorber corrugations whose flanks are directed in the direction of the frontal shocks makes it possible to stiffen the absorber, that is to say to increase its resistance to the forces.
Ainsi, on peut diminuer l'épaisseur de la tôle en acier pour obtenir une capacité d'absorption des efforts identique et par conséquent réduire la masse de l'ensemble et diminuer les coûts.  Thus, it is possible to reduce the thickness of the steel sheet to obtain an identical absorption capacity of efforts and consequently reduce the mass of the assembly and reduce costs.
Dans une version préférée de l'invention, ledit corps creux est constitué par deux parties en tôle en forme de demi-coquilles assemblées l'une à l'autre.  In a preferred version of the invention, said hollow body is constituted by two sheet metal parts in the form of half-shells assembled to one another.
Ces deux parties peuvent être assemblées suivant un plan de symétrie dudit corps creux. Lorsque l'ensemble selon l'invention est en position sur un véhicule le plan de symétrie ci-dessus est situé dans le plan des axes longitudinal X et transversal Y du véhicule. These two parts can be assembled in a plane of symmetry of said hollow body. When the assembly according to the invention is in position on a vehicle the plane of symmetry above is located in the plane of the longitudinal axes X and transverse Y of the vehicle.
Dans un mode de réalisation avantageux de l'invention, chacune des deux parties en tôle du corps creux comprend une partie comportant lesdites ondulations située entre deux parties latérales non ondulées.  In an advantageous embodiment of the invention, each of the two sheet metal parts of the hollow body comprises a portion comprising said corrugations located between two non-corrugated lateral parts.
Cette alternance de parties ondulées et non ondulées confère au corps creux des propriétés mécaniques optimales.  This alternation of corrugated and non-corrugated parts gives the hollow body optimum mechanical properties.
Selon d'autres particularités avantageuses de l'invention :  According to other advantageous features of the invention:
- le sommet des ondulations est situé dans un plan ;  - the top of the undulations is located in a plane;
- ladite partie comportant lesdites ondulations comprend entre deux et quatre ondulations ;  said portion comprising said corrugations comprises between two and four corrugations;
- chacune des deux parties latérales non ondulées comporte des trous ; each of the two non-corrugated lateral portions comprises holes;
- lesdits trous sont sensiblement alignés et la section de ces trous augmente entre l'avant et l'arrière du corps creux constituant chaque absorbeur de choc. said holes are substantially aligned and the section of these holes increases between the front and the rear of the hollow body constituting each shock absorber.
D'autres particularités et avantages de l'invention apparaîtront encore tout au long de la description ci-après.  Other features and advantages of the invention will become apparent throughout the description below.
Aux dessins annexés, donnés à titre d'exemples, non limitatifs :  In the accompanying drawings, given by way of nonlimiting examples:
- la figure 3 est une vue suivant l'axe longitudinal d'un véhicule automobile d'un ensemble poutre et absorbeur de choc selon l'invention fixé à l'avant des brancards,  FIG. 3 is a view along the longitudinal axis of a motor vehicle of a beam and shock absorber assembly according to the invention attached to the front of the stretchers,
- la figure 4 est une vue en perspective du corps creux d'un absorbeur de choc de l'ensemble selon l'invention.  - Figure 4 is a perspective view of the hollow body of a shock absorber of the assembly according to the invention.
La figure 3 représente un ensemble poutre avant 7 et absorbeurs de choc 8 selon l'invention fixés à l'avant de deux brancards 5 dont un seul est visible.  3 shows a front beam assembly 7 and shock absorbers 8 according to the invention fixed at the front of two stretchers 5 of which only one is visible.
La poutre avant 7 est constituée par deux pièces 7a, 7b en tôle d'acier fixées l'une contre l'autre.  The front beam 7 is constituted by two pieces 7a, 7b of sheet steel fixed against each other.
Chacun des deux absorbeurs de choc 8 (dont un seul est visible) situés entre la poutre avant 7 et la plaque 6 fixée à l'avant des deux brancards 5 est constitué par une tôle en acier formant un corps creux évasé de l'avant vers l'arrière, comme montré sur la figure 4. Conformément à l'invention, ce corps creux présente des ondulations 9, 10,Each of the two shock absorbers 8 (only one of which is visible) located between the front beam 7 and the plate 6 fixed to the front of the two stretchers 5 is constituted by a steel sheet forming a hollow body flared from the front towards the back, as shown in Figure 4. According to the invention, this hollow body has corrugations 9, 10,
1 1 , 12, 13, 14 dont les flancs s'étendent entre l'avant et l'arrière du corps creux, c'est-à-dire dans la direction des efforts engendrés lors d'un choc frontal. 1 1, 12, 13, 14 whose flanks extend between the front and the rear of the hollow body, that is to say in the direction of the forces generated during a frontal impact.
La figure 4 montre également que le corps creux est constitué par deux parties en tôle 8a, 8b en forme de demi-coquilles assemblées l'une à l'autre suivant un plan de symétrie du corps creux formant chacun des deux absorbeurs de choc 8.  FIG. 4 also shows that the hollow body consists of two sheet metal parts 8a, 8b in the form of half-shells assembled to each other along a plane of symmetry of the hollow body forming each of the two shock absorbers 8.
Lorsque ces absorbeurs 8 sont en position sur le véhicule, ce plan de symétrie P (voir figure 3) est situé dans le plan des axes longitudinal et transversal X, Y du véhicule.  When these absorbers 8 are in position on the vehicle, this plane of symmetry P (see Figure 3) is located in the plane of the longitudinal and transverse axes X, Y of the vehicle.
Par ailleurs, on voit sur la figure 4 que chacune des deux parties en tôle 8a, 8b de l'absorbeur 8 comprend une partie comportant les ondulations 9, 10, 1 1 ou Furthermore, it can be seen in FIG. 4 that each of the two sheet metal portions 8a, 8b of the absorber 8 comprises a part comprising the corrugations 9, 10, 1 1 or
12, 13, 14 situées entre deux parties latérales non ondulées de section transversale de forme arquée. 12, 13, 14 located between two non-waved side portions of arcuate cross-section.
Le sommet des ondulations 9, 10, 1 1 et 12, 13, 14 est situé dans un plan. The top of the corrugations 9, 10, 11 and 12, 13, 14 is located in a plane.
Chacune des deux parties comportant respectivement les ondulations 9, 10, 1 1 et 12, 13, 14 comporte, dans l'exemple représenté sur la figure 4, trois ondulations. Each of the two parts respectively comprising the corrugations 9, 10, 1 1 and 12, 13, 14 comprises, in the example shown in Figure 4, three corrugations.
Cependant, le nombre de ces ondulations peut varier par exemple entre deux et quatre.  However, the number of these corrugations can vary for example between two and four.
La figure 4 montre en outre que les deux parties latérales non pourvues d'ondulations comportent chacune des trous 15, 16.  FIG. 4 further shows that the two lateral portions not provided with corrugations each comprise holes 15, 16.
Ces trous 15, 16 sont sensiblement alignés et leur section augmente entre l'avant et l'arrière du corps creux de forme évasée constituant chacun des deux absorbeurs de choc 8.  These holes 15, 16 are substantially aligned and their section increases between the front and the rear of the hollow body of flared shape constituting each of the two shock absorbers 8.
On donne ci-après à titre d'exemple non limitatif les caractéristiques d'un ensemble poutre avant et absorbeur de choc selon l'invention.  The characteristics of a front beam and shock absorber assembly according to the invention are given by way of non-limiting example.
Poutre partie avant 7a :  Front beam 7a:
- tôle d'acier d'épaisseur égale à 1 ,17 mm, longueur mesurée dans le sens transversal égale à 1095 mm et hauteur égale à 77 mm. - steel sheet with a thickness of 1, 17 mm, length measured in the transverse direction equal to 1095 mm and height equal to 77 mm.
Poutre partie arrière : Beam rear part:
- tôle d'acier d'épaisseur 1 ,76 mm, de longueur 827 mm et de hauteur égale à 80 mm. Absorbeur de choc 8 : - steel sheet thickness 1.76 mm, length 827 mm and height equal to 80 mm. Shock Absorber 8:
- tôle d'acier d'épaisseur égale à 1 ,47 mm, de longueur égale à 135 mm, de largeur égale à 73 mm et de hauteur égale à 76 mm.  - steel sheet with a thickness of 1.47 mm, length equal to 135 mm, width equal to 73 mm and height equal to 76 mm.
Plaque 6 :  Plate 6:
- acier d'épaisseur égale à 2,44 mm  - steel with a thickness of 2.44 mm
- dimensions 168 X 128 mm.  - dimensions 168 X 128 mm.
Masse totale : 5,29 kg.  Total mass: 5.29 kg.
L'ensemble selon l'invention a été comparé avec un ensemble en aluminium tel que représenté sur les figures 1 et 2.  The assembly according to the invention has been compared with an aluminum assembly as shown in FIGS. 1 and 2.
Par rapport à cet ensemble en aluminium connu, l'ensemble selon l'invention présente les avantages suivants :  With respect to this known aluminum assembly, the assembly according to the invention has the following advantages:
- moins coûteux à fabriquer ;  - less expensive to manufacture;
- tôle d'acier plus facile à travailler que l'aluminium.  - steel sheet easier to work than aluminum.
De plus, les tests de choc frontal effectués à une vitesse de 16 km/h ont montré que les déformations subies par l'ensemble selon l'invention étaient moins coûteuses à réparer que dans le cas de l'ensemble en aluminium.  In addition, frontal impact tests carried out at a speed of 16 km / h showed that the deformations undergone by the assembly according to the invention were less expensive to repair than in the case of the aluminum assembly.
Ces résultats s'expliquent par la forme évasée et par les ondulations réalisées sur le corps creux en tôle d'acier constituant chacun des deux absorbeurs de choc.  These results are explained by the flared shape and by the corrugations made on the hollow body of sheet steel constituting each of the two shock absorbers.
En effet les ondulations formées sur le corps creux permettent de raidir ce corps creux, ce qui permet d'utiliser une tôle d'acier d'épaisseur relativement faible permettant d'alléger chacun des absorbeurs.  Indeed, the corrugations formed on the hollow body make it possible to stiffen the hollow body, which makes it possible to use a sheet of steel of relatively small thickness making it possible to lighten each of the absorbers.
Cet allégement est également obtenu grâce aux trous 15, 16 formés sur les deux parties latérales du corps creux constituant chacun des deux absorbeurs.  This lightening is also obtained through the holes 15, 16 formed on the two side portions of the hollow body constituting each of the two absorbers.

Claims

REVENDICATIONS
1 . Ensemble comprenant une poutre avant (7) de véhicule automobile et deux absorbeurs de choc frontal (8) destinés à être fixés chacun entre l'une des deux extrémités opposées de ladite poutre avant (7) et une extrémité avant de l'un des deux brancards (5), chacun de ces deux absorbeurs de choc (8) étant constitué par une tôle en acier formant un corps creux évasé de l'avant vers l'arrière, caractérisé en ce que ledit corps creux présente des ondulations (9, 10, 1 1 ; 12, 13, 14) dont les flancs s'étendent entre l'avant et l'arrière dudit corps, ledit corps creux étant constitué par deux parties en tôle (8a, 8b) en forme de demi- coquilles assemblées l'une à l'autre suivant un plan de symétrie (P) dudit corps creux, ce plan de symétrie P étant situé dans le plan des axes longitudinal et transversal X, Y d'un véhicule. 1. An assembly comprising a front beam (7) of a motor vehicle and two frontal impact absorbers (8) to be each fixed between one of the two opposite ends of said front beam (7) and a front end of one of the two stretchers (5), each of these two shock absorbers (8) consisting of a steel sheet forming a hollow body flared from front to rear, characterized in that said hollow body has corrugations (9, 10 , 1 1; 12, 13, 14) whose flanks extend between the front and the rear of said body, said hollow body being constituted by two sheet metal parts (8a, 8b) in the form of assembled half-shells. one to the other following a plane of symmetry (P) of said hollow body, this plane of symmetry P being located in the plane of the longitudinal and transverse axes X, Y of a vehicle.
2. Ensemble selon la revendication 1 , caractérisé en ce que chacune des deux parties en tôle (8a, 8b) du corps creux comprend une partie comportant lesdites ondulations (9, 10, 1 1 ; 12, 13, 14) située entre deux parties latérales non ondulées.  2. An assembly according to claim 1, characterized in that each of the two sheet portions (8a, 8b) of the hollow body comprises a portion comprising said undulations (9, 10, 1 1, 12, 13, 14) situated between two parts lateral non-wavy.
3. Ensemble selon la revendication 2, caractérisé en ce que le sommet des ondulations (9, 10, 1 1 ; 12, 13, 14) est situé dans un plan.  3. The assembly of claim 2, characterized in that the top of the corrugations (9, 10, 1 1; 12, 13, 14) is located in a plane.
4. Ensemble selon l'une des revendications 2 ou 3, caractérisé en ce que ladite partie comportant lesdites ondulations (9, 10, 1 1 ; 12, 13, 14) comprend entre deux et quatre ondulations.  4. Assembly according to one of claims 2 or 3, characterized in that said portion comprising said corrugations (9, 10, 1 1; 12, 13, 14) comprises between two and four corrugations.
5. Ensemble selon l'une des revendications 2 à 4, caractérisé en ce que chacune des deux parties latérales non ondulées comporte des trous (15, 16).  5. An assembly according to one of claims 2 to 4, characterized in that each of the two non-corrugated side portions comprises holes (15, 16).
6. Ensemble selon la revendication 5, caractérisé en ce que lesdits trous (15, 16) sont sensiblement alignés et la section de ces trous (15, 16) augmente entre l'avant et l'arrière du corps creux constituant chaque absorbeur de choc (8).  6. An assembly according to claim 5, characterized in that said holes (15, 16) are substantially aligned and the section of these holes (15, 16) increases between the front and the rear of the hollow body constituting each shock absorber (8).
7. Face avant du soubassement d'un véhicule automobile comportant un ensemble selon l'une des revendications 1 à 6.  7. Front face of the underbody of a motor vehicle comprising an assembly according to one of claims 1 to 6.
8. Véhicule automobile dont la face avant du soubassement est conforme à la revendication 7.  8. Motor vehicle whose front face of the underbody complies with claim 7.
PCT/FR2013/052788 2012-12-03 2013-11-19 Assembly comprising a motor vehicle front beam and two front shock absorbers made of sheet steel WO2014087066A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BR112015012212-4A BR112015012212B1 (en) 2012-12-03 2013-11-19 ASSEMBLY COMPRISING A FRONT BEAM AND TWO FRONT AND FRONT SHOCK ABSORBERS OF THE BOTTOM PART OF A MOTOR VEHICLE AND MOTOR VEHICLE CONTAINING SUCH PARTS
CN201380063094.0A CN104918831A (en) 2012-12-03 2013-11-19 Assembly comprising a motor vehicle front beam and two front shock absorbers made of sheet steel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1261560 2012-12-03
FR1261560A FR2998842B1 (en) 2012-12-03 2012-12-03 ASSEMBLY COMPRISING A FRONT BEAM OF A MOTOR VEHICLE AND TWO FRONT SHOCK ABSORBERS IN STEEL SHEET

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WO2014087066A1 true WO2014087066A1 (en) 2014-06-12

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CN (1) CN104918831A (en)
AR (1) AR094638A1 (en)
BR (1) BR112015012212B1 (en)
FR (1) FR2998842B1 (en)
WO (1) WO2014087066A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3040941A1 (en) 2015-09-11 2017-03-17 Peugeot Citroen Automobiles Sa SHOCK ABSORPTION ASSEMBLY FOR FRONT OR REAR FRONT OF A VEHICLE
FR3070645B1 (en) * 2017-09-01 2021-04-09 Valeo Systemes Thermiques MOTOR VEHICLE BUMPER KIT

Citations (4)

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Publication number Priority date Publication date Assignee Title
EP1630448A1 (en) * 2004-08-30 2006-03-01 Wagon Automotive S.A. Shock absorbing element for a vehicle and corresponding chassis
WO2012040826A1 (en) * 2010-09-28 2012-04-05 Magna International Inc. Scalable crush can for vehicle
WO2012140930A1 (en) * 2011-04-14 2012-10-18 豊田鉄工株式会社 Hook attachment structure and hook attachment module for vehicle
DE102012012901A1 (en) * 2012-06-28 2012-11-22 Benteler Automobiltechnik Gmbh Bumper assembly for motor vehicle, has deformation elements configured in cross-section, where two opposing wall portions in cross-section have corner that is directed inwardly into cavity, and cross beam is connected to vehicle body

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Publication number Priority date Publication date Assignee Title
CN201633678U (en) * 2009-09-27 2010-11-17 浙江吉利汽车研究院有限公司 A car crash energy absorbing device
JP5741041B2 (en) * 2011-02-14 2015-07-01 マツダ株式会社 Crush can made of die-cast aluminum alloy

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
EP1630448A1 (en) * 2004-08-30 2006-03-01 Wagon Automotive S.A. Shock absorbing element for a vehicle and corresponding chassis
WO2012040826A1 (en) * 2010-09-28 2012-04-05 Magna International Inc. Scalable crush can for vehicle
WO2012140930A1 (en) * 2011-04-14 2012-10-18 豊田鉄工株式会社 Hook attachment structure and hook attachment module for vehicle
DE102012012901A1 (en) * 2012-06-28 2012-11-22 Benteler Automobiltechnik Gmbh Bumper assembly for motor vehicle, has deformation elements configured in cross-section, where two opposing wall portions in cross-section have corner that is directed inwardly into cavity, and cross beam is connected to vehicle body

Also Published As

Publication number Publication date
CN104918831A (en) 2015-09-16
FR2998842B1 (en) 2016-05-27
AR094638A1 (en) 2015-08-19
BR112015012212B1 (en) 2021-11-16
BR112015012212A2 (en) 2017-07-11
FR2998842A1 (en) 2014-06-06

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