FR2907413A1 - Body structure for motor vehicle e.g. car, has fixing unit including intermediate support provided with two elements which are connected to each other, where elements are respectively fixed to lateral support and vertical plate - Google Patents

Body structure for motor vehicle e.g. car, has fixing unit including intermediate support provided with two elements which are connected to each other, where elements are respectively fixed to lateral support and vertical plate Download PDF

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Publication number
FR2907413A1
FR2907413A1 FR0654409A FR0654409A FR2907413A1 FR 2907413 A1 FR2907413 A1 FR 2907413A1 FR 0654409 A FR0654409 A FR 0654409A FR 0654409 A FR0654409 A FR 0654409A FR 2907413 A1 FR2907413 A1 FR 2907413A1
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France
Prior art keywords
motor vehicle
body structure
elements
plate
fixing
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Granted
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FR0654409A
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French (fr)
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FR2907413B1 (en
Inventor
Christian Talibart
Jean Pierre Conan
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PSA Automobiles SA
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Peugeot Citroen Automobiles SA
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Priority to FR0654409A priority Critical patent/FR2907413B1/en
Publication of FR2907413A1 publication Critical patent/FR2907413A1/en
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Publication of FR2907413B1 publication Critical patent/FR2907413B1/en
Expired - Fee Related legal-status Critical Current
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08—Front or rear portions
    • B62D25/14—Dashboards as superstructure sub-units
    • B62D25/145—Dashboards as superstructure sub-units having a crossbeam incorporated therein
    • B62D25/147—Dashboards as superstructure sub-units having a crossbeam incorporated therein with adjustable connection to the A-pillars
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The structure has a crossmember (12) fixed on a lateral crossmember support (36) by an end (24), where the support is provided on a structural element. A fixing unit fixes the end on the lateral support. The end includes a fixation part which has a vertical fixation plate (26). The fixing unit includes an intermediate support (30) provided with two elements (32, 34) which are connected to each other in an adjustable manner. The elements are respectively fixed to the lateral support and the vertical plate.

Description

1 Structure de caisse de véhicule automobile La présente invention1 Motor Vehicle Body Structure The present invention

concerne une structure de caisse de véhicule automobile, du type comportant : - une traverse fixée par au moins une de ses extrémités opposées sur un support latéral de traverse prévu sur un élément de structure ; et - des moyens de fixation d'au moins une première extrémité de la tra- verse sur le support latéral ; ladite première extrémité de la traverse comportant une pièce de fixation qui comprend une plaque sensiblement verticale.  relates to a body structure of a motor vehicle, of the type comprising: - a cross member fixed by at least one of its opposite ends on a cross support side provided on a structural element; and means for fixing at least one first end of the cross member on the lateral support; said first end of the crossbar having a fastener which comprises a substantially vertical plate.

Un exemple d'une telle structure est décrit dans le document FR-A-2 766 783. Dans ce document, il est proposé une structure destinée à diminuer les vibrations ressenties par le conducteur au niveau du volant. Cependant, outre sa complexité, cette structure n'offre pas la possibilité d'éviter certaines contraintes exercées sur la traverse lors des opérations d'assemblage. En effet, si les pieds avant constituant les éléments de structure sur lesquels reposent les supports latéraux de traverse présentent entre eux un décalage en X au maximum des tolérances admises, il s'ensuit un appui des fixations de la traverse défavorable et l'apparition de contraintes dans les pièces lors du montage. De plus, si un système amortissant, destiné à amortir les vibrations, est intégré à la traverse, les contraintes créées lors de l'assemblage se ré-percutent dans le matériau amortissant, rendant de ce fait celui-ci partielle-ment inopérant.  An example of such a structure is described in document FR-A-2 766 783. In this document, there is provided a structure for reducing the vibrations felt by the driver at the steering wheel. However, in addition to its complexity, this structure does not offer the possibility of avoiding certain stresses exerted on the crosspiece during assembly operations. In fact, if the front feet constituting the structural elements on which the transverse supports of the sleeper rest have between them an offset in X at the maximum tolerances allowed, it follows a support of the fastenings of the unfavorable cross and the appearance of constraints in the parts during assembly. In addition, if a damping system, designed to dampen vibrations, is integrated in the cross member, the stresses created during the assembly re-impact in the damping material, thereby rendering it partially inoperative.

L'invention a pour but de remédier à ces inconvénients en proposant une structure simple qui permette de rattraper des écarts de mise en géométrie lors des opérations de montage de la structure du véhicule. A cet effet, l'invention a pour objet une structure de caisse de véhicule automobile, du type précité, caractérisée en ce que les moyens de fixa- fion comprennent un support intermédiaire muni d'un premier élément et d'un deuxième élément reliés entre eux de façon ajustable, le premier élément étant fixé au support latéral de traverse, et le deuxième élément étant fixé à la plaque de fixation.  The object of the invention is to remedy these drawbacks by proposing a simple structure that makes it possible to make up for differences in setting geometry during the assembly operations of the vehicle structure. For this purpose, the subject of the invention is a body structure of a motor vehicle, of the aforementioned type, characterized in that the fixing means comprise an intermediate support provided with a first element and a second element connected between them in an adjustable manner, the first element being fixed to the side support of the cross member, and the second element being fixed to the fixing plate.

2907413 2 La structure selon l'invention peut comporter une ou plusieurs des caractéristiques suivantes : - lesdits premier et deuxième éléments sont articulés entre eux autour d'un axe sensiblement vertical ; 5 - lesdits premier et deuxième éléments sont fixés en rotation l'un par rapport à l'autre au moyen d'une vis charnière ; - le premier élément comprend une plaque sensiblement verticale d'orientation sensiblement transversale fixée au support latéral de traverse par au moins un ensemble vis-écrou d'axe de serrage sensiblement longitu- 10 dinal ; - le deuxième élément comprend une plaque sensiblement verticale d'orientation sensiblement longitudinale fixée à la plaque de fixation ; - une couche de matériau amortissant est disposée entre la plaque formant le deuxième élément et la plaque de fixation ; et 15 - un organe de maintien temporaire du matériau amortissant s'étend à travers des lumières correspondantes de la plaque formant le deuxième élément, de la couche amortissante et de la plaque de fixation, la fixation du deuxième élément à la plaque de fixation étant réalisée de façon définitive au moyen d'au moins une vis traversant les mêmes lumières.The structure according to the invention may comprise one or more of the following features: said first and second elements are hinged together about a substantially vertical axis; Said first and second members are rotatably connected to one another by means of a hinge screw; the first element comprises a substantially vertical plate of substantially transverse orientation fastened to the transverse lateral support by at least one screw-nut assembly with a substantially longitudinal clamping shaft; the second element comprises a substantially vertical plate of substantially longitudinal orientation fixed to the fixing plate; a layer of damping material is disposed between the plate forming the second element and the fixing plate; and 15 - a temporary holding member of the damping material extends through corresponding apertures of the plate forming the second element, the damping layer and the fixing plate, the fixing of the second element to the fixing plate being realized definitively by means of at least one screw passing through the same lights.

20 L'invention a également pour objet un véhicule automobile, caractéri- sé en ce qu'il comprend une structure telle que décrite précédemment. L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés, dans lesquels : 25 - la Figure 1 est une vue schématique en coupe verticale longitudi- nale d'un véhicule automobile équipé d'une structure selon l'invention ; - la Figure 2 est une vue de dessus de la traverse de planche de bord de la Figure 1 ; - la Figure 3 est une vue analogue à la Figure 2 montrant en détail 30 l'extrémité gauche de la traverse de planche de bord et sa fixation sur le pied associé ; et - la Figure 4 est une vue en perspective de la fixation de la Figure 3.The invention also relates to a motor vehicle, characterized in that it comprises a structure as described above. The invention will be better understood on reading the description which follows, given solely by way of example and with reference to the appended drawings, in which: FIG. 1 is a diagrammatic view in longitudinal vertical section; a motor vehicle equipped with a structure according to the invention; - Figure 2 is a top view of the dashboard cross member of Figure 1; Figure 3 is a view similar to Figure 2 showing in detail the left end of the dashboard crossmember and its attachment to the associated foot; and - Figure 4 is a perspective view of the attachment of Figure 3.

2907413 3 Dans tout ce qui suit, les orientations indiquées telles que gauche , droite , longitudinal , transversal et vertical correspondent à celles du véhicule. La Figure 1 représente, de façon schématique, un véhicule automo- 5 bile 10 équipé d'une traverse 12 appartenant à la structure de caisse du véhicule, et qui est, dans cet exemple, la traverse de support de la planche de bord du véhicule. La traverse de planche de bord 12 est reliée à la traverse inférieure de baie 14 par un élément de liaison 16.In all that follows, the indicated orientations such as left, right, longitudinal, transverse and vertical correspond to those of the vehicle. Figure 1 shows, schematically, a motor vehicle 10 equipped with a cross member 12 belonging to the body structure of the vehicle, and which is, in this example, the support beam of the dashboard of the vehicle . The dashboard cross member 12 is connected to the lower bay cross member 14 by a connecting element 16.

10 La traverse planche de bord 12 est également reliée au tunnel du plancher 18 par la jambe de force 20. En référence à la Figure 2, la traverse de planche de bord 12 est essentiellement constituée par un corps de traverse 22 d'orientation générale transversale Y, comprenant un élément tubulaire.The dashboard cross member 12 is also connected to the tunnel of the floor 18 by the strut 20. With reference to FIG. 2, the dashboard cross member 12 essentially consists of a cross member body 22 of transverse general orientation. Y, comprising a tubular element.

15 Chacune des deux extrémités opposées 24 du corps 22 porte une pièce de fixation formée par une plaque verticale 26 pour sa fixation sur un pied vertical 28 (non représenté entièrement) appartenant à la structure de caisse du véhicule. Selon l'invention, cette fixation est réalisée au moyen d'un support in20 termédiaire 30, décrit plus en détail en référence aux Figures 3 et 4. Le support intermédiaire 30 comprend un premier élément 32 et un deuxième élément 34 articulés entre eux autour d'un axe vertical. Le premier élément 32 est fixé au pied 28 par l'intermédiaire d'une pièce de support latéral de traverse 36 solidaire du pied 28, tandis que le 25 deuxième élément 34 est fixé à la plaque de fixation 26. Plus précisément, le premier élément 32 est constitué par une plaque verticale d'orientation transversale Y, fixée au support latéral de traverse 36 par deux vis 38 à écrou 40 d'axe de serrage principalement longitudinal. Pour cela, la plaque formant le premier élément 32 présente deux oh- 30 fices 42, et le support 36 présente deux orifices correspondants 43, les orifices 42 et 43 étant traversés librement par les vis 38.Each of the two opposite ends 24 of the body 22 carries a fastener formed by a vertical plate 26 for attachment to a vertical leg 28 (not shown entirely) belonging to the body structure of the vehicle. According to the invention, this fixing is carried out by means of an intermediate support 30, described in more detail with reference to FIGS. 3 and 4. The intermediate support 30 comprises a first element 32 and a second element 34 hinged together around each other. a vertical axis. The first member 32 is attached to the foot 28 via a cross member support member 36 integral with the foot 28, while the second member 34 is attached to the attachment plate 26. More precisely, the first member 32 is constituted by a vertical plate of transverse orientation Y, fixed to the lateral support of the cross member 36 by two screws 38 to nut 40 of mainly longitudinal clamping axis. For this, the plate forming the first element 32 has two occluders 42, and the support 36 has two corresponding orifices 43, the orifices 42 and 43 being traversed freely by the screws 38.

2907413 4 Le deuxième élément 34 est constitué par une plaque verticale d'orientation longitudinale X, fixée à la plaque de fixation 26 avec interposition d'une couche de matériau amortissant 44. La couche 44 est maintenue provisoirement en position, pendant les 5 opérations de montage, grâce à un organe 46 (Figure 4) muni de deux ergots 47 qui traversent des orifices correspondants 48 prévus dans le deuxième élément 34, la couche 44 et la plaque de fixation 26. Pour cela, le deuxième élément 34, la couche 44 et la plaque de fixation 26 présentent chacun deux orifices 48a, 48b, d'axe commun transversal 10 Ta-Ta, Tb-Tb respectivement. L'organe 46 peut être réalisé en acier ou en matière rigide du type zamac . Lors des opérations de montage, la première étape consiste à accoster la plaque formant le premier élément 32 avec le support latéral de ta-15 verse 36. Les deux pièces 32, 36 sont alors fixées entre elles par assemblage des deux vis 38 dans les écrous 40. La deuxième étape consiste à fixer en rotation, grâce à une vis charnière 50 (Figure 4), les plaques formant le premier élément 32 et le 20 deuxième élément 34. A cet effet, les deux plaques comportent, le long de leurs bords verticaux adjacents, des oeillets 52 qui s'interpénètrent. La troisième et dernière étape consiste à enlever l'organe 46 et à fixer l'élément 34 au support 26 par deux vis 54 (Figure 3) traversant les mêmes trous 48a, 48b.The second element 34 is constituted by a vertical plate of longitudinal orientation X, fixed to the fixing plate 26 with the interposition of a layer of damping material 44. The layer 44 is held temporarily in position, during the 5 operations of mounting, through a member 46 (Figure 4) provided with two lugs 47 which pass through corresponding holes 48 provided in the second element 34, the layer 44 and the fixing plate 26. For this, the second element 34, the layer 44 and the fixing plate 26 each have two orifices 48a, 48b of transverse common axis 10 Ta-Ta, Tb-Tb respectively. The member 46 may be made of steel or rigid material zamac type. During assembly operations, the first step is to dock the plate forming the first element 32 with the lateral support of ta-15 verse 36. The two parts 32, 36 are then fixed together by assembling the two screws 38 in the nuts 40. The second step is to fix in rotation, by means of a hinge screw 50 (FIG. 4), the plates forming the first element 32 and the second element 34. For this purpose, the two plates comprise, along their edges. vertically adjacent eyelets 52 which interpenetrate. The third and final step is to remove the member 46 and fix the element 34 to the support 26 by two screws 54 (Figure 3) passing through the same holes 48a, 48b.

25 La structure de caisse de véhicule automobile selon l'invention per-met donc de limiter, de façon simple, les contraintes exercées sur la traverse, et éventuellement sur les éléments amortisseurs, en rattrapant par une simple variation de l'angle entre les éléments 32 et 34 les écarts de mise en géométrie de la caisse, notamment les décalages en X des pieds 30 avant. Ceci garantit un bon fonctionnement de l'ensemble de la structure, sans contrainte excessive sur la traverse. Il est à noter que dans le mode de réalisation décrit ci-dessus, les moyens de fixation de la traverse sur la caisse du véhicule selon l'invention 2907413 5 sont présents des deux côtés latéraux de la traverse, mais il est tout à fait envisageable de ne les appliquer que d'un seul côté de la traverse. Selon une variante de l'invention (non représentée), la plaque 34 peut être constituée, seulement, d'une plaque verticale d'orientation longitudinale 5 X, fixée directement à la plaque de fixation 26, par des moyens appropriés, par exemple par vissage ou par soudage. La traverse de planche de bord peut alors être constituée d'un élément tubulaire transversal, tel que décrit précédemment, ou peut être constituée d'au moins deux éléments distincts entre lesquels sont interposés des moyens d'amortissement, par exemple 10 un matériau viscoélastique.The body structure of a motor vehicle according to the invention thus makes it possible to limit, in a simple manner, the stresses exerted on the cross member, and possibly on the damping elements, by catching by a simple variation of the angle between the elements. 32 and 34 the differences in setting geometry of the body, including the X offsets of the front feet. This guarantees a smooth operation of the whole structure, without excessive stress on the transom. It should be noted that in the embodiment described above, the fastening means of the cross member on the vehicle body according to the invention 2907413 5 are present on both lateral sides of the crossbar, but it is quite possible apply only one side of the crossbar. According to a variant of the invention (not shown), the plate 34 can be constituted, only, of a vertical plate of longitudinal orientation 5 X, fixed directly to the fixing plate 26, by appropriate means, for example by screwing or welding. The dashboard crossbar may then consist of a transverse tubular element, as described above, or may consist of at least two distinct elements between which are interposed damping means, for example a viscoelastic material.

Claims (8)

REVENDICATIONS 1.- Structure de caisse de véhicule automobile, du type comportant : - une traverse (12) fixée par au moins une de ses extrémités oppo- sées (24) sur un support latéral de traverse (36) prévu sur un élément de 5 structure (28) ; et - des moyens de fixation d'au moins une première extrémité (24) de la traverse (12) sur le support latéral (36) ; ladite première extrémité (24) de la traverse (12) comportant une pièce de fixation qui comprend une plaque sensiblement verticale (26), ca- 10 ractérisée en ce que les moyens de fixation comprennent un support intermédiaire (30) muni d'un premier élément (32) et d'un deuxième élément (34) reliés entre eux de façon ajustable, le premier élément (32) étant fixé au support latéral de traverse (36), et le deuxième élément (34) étant fixé à la plaque de fixation (26). 15  1. Body structure of a motor vehicle, of the type comprising: - a cross member (12) fastened by at least one of its opposite ends (24) to a transverse side support (36) provided on a structural element (28); and - means for fixing at least a first end (24) of the cross member (12) on the lateral support (36); said first end (24) of the cross member (12) having a fastener which comprises a substantially vertical plate (26), characterized in that the fastening means comprises an intermediate support (30) provided with a first element (32) and a second element (34) connected together in an adjustable manner, the first element (32) being fixed to the transverse side support (36), and the second element (34) being fixed to the support plate (36). fixing (26). 15 2.- Structure de caisse de véhicule automobile selon la revendication 1, caractérisée en ce que lesdits premier et deuxième éléments (32, 34) sont articulés entre eux autour d'un axe sensiblement vertical.  2. Body structure of a motor vehicle according to claim 1, characterized in that said first and second elements (32, 34) are hinged together about a substantially vertical axis. 3.- Structure de caisse de véhicule automobile selon la revendication 2, caractérisée en ce que lesdits premier et deuxième éléments (32, 34) sont 20 fixés en rotation l'un par rapport à l'autre au moyen d'une vis charnière (50).  3. Body structure of a motor vehicle according to claim 2, characterized in that said first and second elements (32, 34) are fixed in rotation relative to each other by means of a hinge screw ( 50). 4.- Structure de caisse de véhicule automobile selon l'une quel-conque des revendications 1 à 3, caractérisée en ce que le premier élément (32) comprend une plaque sensiblement verticale d'orientation sensiblement transversale (Y) fixée au support latéral de traverse (36) par au moins un 25 ensemble vis-écrou (38, 40) d'axe de serrage sensiblement longitudinal (X).  4. Body structure of a motor vehicle according to any one of claims 1 to 3, characterized in that the first element (32) comprises a substantially vertical plate of substantially transverse orientation (Y) attached to the lateral support of crossbar (36) by at least one screw-nut assembly (38, 40) having a substantially longitudinal clamping axis (X). 5.- Structure de caisse de véhicule automobile selon l'une quel-conque des revendications 1 à 4, caractérisée en ce que le deuxième élément (34) comprend une plaque sensiblement verticale d'orientation sensiblement longitudinale (X) fixée à la plaque de fixation (26). 30  5. Body structure of a motor vehicle according to any one of claims 1 to 4, characterized in that the second element (34) comprises a substantially vertical plate of substantially longitudinal orientation (X) attached to the plate of fixing (26). 30 6.- Structure de caisse de véhicule automobile selon la revendication 5, caractérisée en ce qu'une couche de matériau amortissant (44) est disposée entre la plaque formant le deuxième élément (34) et la plaque de fixation (26). 2907413 7  6. Body structure of a motor vehicle according to claim 5, characterized in that a layer of damping material (44) is disposed between the plate forming the second element (34) and the fixing plate (26). 2907413 7 7.- Structure de caisse de véhicule automobile selon les revendications 5 et 6 prises ensemble, caractérisée en ce qu'un organe (46) de main-tien temporaire du matériau amortissant (44) s'étend à travers des lumières correspondantes (48a, 48b) de la plaque formant le deuxième élément (34), de la couche amortissante (44) et de la plaque de fixation (26), la fixation du deuxième élément (34) à la plaque de fixation (26) étant réalisée de façon définitive au moyen d'au moins une vis (54) traversant les mêmes lumières (48a, 48b).  7. Body structure of a motor vehicle according to claims 5 and 6 taken together, characterized in that a member (46) of temporary maintenance of the damping material (44) extends through corresponding slots (48a, 48b) of the plate forming the second element (34), the damping layer (44) and the fixing plate (26), the fixing of the second element (34) to the fixing plate (26) being carried out so as to definitively by means of at least one screw (54) passing through the same lumens (48a, 48b). 8.- Véhicule automobile, caractérisé en ce qu'il comprend une struc- ture selon l'une quelconque des revendications précédentes.  8. A motor vehicle, characterized in that it comprises a structure according to any one of the preceding claims.
FR0654409A 2006-10-20 2006-10-20 BODY STRUCTURE OF A MOTOR VEHICLE. Expired - Fee Related FR2907413B1 (en)

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Application Number Priority Date Filing Date Title
FR0654409A FR2907413B1 (en) 2006-10-20 2006-10-20 BODY STRUCTURE OF A MOTOR VEHICLE.

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FR0654409A FR2907413B1 (en) 2006-10-20 2006-10-20 BODY STRUCTURE OF A MOTOR VEHICLE.

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FR2907413A1 true FR2907413A1 (en) 2008-04-25
FR2907413B1 FR2907413B1 (en) 2009-07-24

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991280A1 (en) * 2012-05-31 2013-12-06 Faurecia Interieur Ind Vehicle structure, has left cross-piece fixing interface comprising upper and lower distal contact surfaces remote from upper and lower proximal contact surfaces, where each surface forms fixing angle relative to transverse direction

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2766783A1 (en) 1997-07-31 1999-02-05 Renault Vehicle chassis structure using bolted assembly
DE10200886A1 (en) * 2002-01-11 2003-10-09 Volkswagen Ag Mounting for the cross member, at a motor vehicle body, has an L-shaped angle intermediate component between its end and the body, with longitudinal and lateral tolerance compensation

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2766783A1 (en) 1997-07-31 1999-02-05 Renault Vehicle chassis structure using bolted assembly
DE10200886A1 (en) * 2002-01-11 2003-10-09 Volkswagen Ag Mounting for the cross member, at a motor vehicle body, has an L-shaped angle intermediate component between its end and the body, with longitudinal and lateral tolerance compensation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2991280A1 (en) * 2012-05-31 2013-12-06 Faurecia Interieur Ind Vehicle structure, has left cross-piece fixing interface comprising upper and lower distal contact surfaces remote from upper and lower proximal contact surfaces, where each surface forms fixing angle relative to transverse direction

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