EP3568337A1 - Motor vehicle rocker panel structure - Google Patents

Motor vehicle rocker panel structure

Info

Publication number
EP3568337A1
EP3568337A1 EP17817007.2A EP17817007A EP3568337A1 EP 3568337 A1 EP3568337 A1 EP 3568337A1 EP 17817007 A EP17817007 A EP 17817007A EP 3568337 A1 EP3568337 A1 EP 3568337A1
Authority
EP
European Patent Office
Prior art keywords
profile
longitudinal
auxiliary
body side
structure according
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP17817007.2A
Other languages
German (de)
French (fr)
Inventor
Fabien PROST
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
PSA Automobiles SA
Original Assignee
PSA 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 PSA Automobiles SA filed Critical PSA Automobiles SA
Publication of EP3568337A1 publication Critical patent/EP3568337A1/en
Withdrawn legal-status Critical Current

Links

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
    • B62D25/20—Floors or bottom sub-units
    • B62D25/2009—Floors or bottom sub-units in connection with other superstructure subunits
    • B62D25/2036—Floors or bottom sub-units in connection with other superstructure subunits the subunits being side panels, sills or pillars
    • 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
    • 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
    • B62D25/02—Side panels
    • B62D25/025—Side sills thereof

Definitions

  • the present invention relates to a motor vehicle structure and more particularly to the lower portion of the underside.
  • the underside structure of a motor vehicle comprises two side members arranged laterally on either side of the vehicle, on which the floor is fixed.
  • Each of these longitudinal members is usually composed of an outer profile and an inner profile.
  • the face of the outer profile facing the outside of the vehicle is covered by a stamped sheet which constitutes a cockpit side, also commonly called skin or body side.
  • the lower part of this sheet usually has an outward bulge whose role is to hide the view of all the beam profiles. But this bulge also has the consequence that the sheet used in the design of the body side must be of a certain height, or the stamping of a body side is also subject to technological constraints.
  • the height of the body side is nevertheless limited by the maximum stamping width of the tools. This proves to be particularly a drawback for the design of commercial vehicles because the height of the interior sides of this type of vehicle is generally higher than that of sedans. It therefore follows from these technical limitations that a portion of sheet metal may be missing at the bottom of the body side so that the latter can be directly assembled on the corresponding spar.
  • the patent document published FR 2 922 509 A1 addresses the problem of forming by stamping of the lower portion of the body sides, forming the bulges vis-à-vis the longitudinal members.
  • this document proposes a solution consisting in reporting an auxiliary metal part between the lower portion of the body side and the lower edge of the outer spar to reduce the drawing depth of the body side.
  • the auxiliary part is in the form of an inverted U whose concavity is turned towards the inside of the hollow non-sealed body delimited by the inner face of the body side and the outer face of the outer spar. This orientation is also the part of the U-shaped part oriented on the bulge side of the lower portion of the body side forms a hollow.
  • the invention aims to overcome at least one of the disadvantages of the state of the art mentioned above. More particularly, the invention aims to limit the corrosion of the sills of motor vehicles, especially utility type vehicles. Furthermore, the invention aims a simple solution, economical and easy to implement on most vehicles.
  • the invention relates to a motor vehicle structure, comprising: two side sill spars located laterally on either side of the vehicle, respectively; two body sides arranged laterally on either side of the vehicle, respectively, and each comprising a lower portion fixed to a lower edge of the corresponding side sill spar; remarkable in that for at least one of the body sides, the lower portion is formed by an auxiliary longitudinal profile attached to an adjacent portion of said body side by a combination of gluing and clinching.
  • the auxiliary longitudinal profile comprises an outer longitudinal edge superimposed on a lower longitudinal edge of the adjacent portion, the attachment by the gluing and clinching combination being between said edges.
  • the superposed edges of the auxiliary longitudinal profile and the adjacent portion of the body side have a transverse profile inclined relative to the horizontal so as to avoid stagnation of water on said edges.
  • the inclination is advantageously greater than 1 °, preferably 5 ° and / or less than 45 °, preferably 20 °.
  • the auxiliary longitudinal profile has a transverse profile with a part forming a gutter, said portion being adjacent and downwards superimposed edges of the auxiliary longitudinal profile and the adjacent portion of the body side.
  • the bonding is continuous along the edges so as to ensure watertightness and protection of the interface against corrosion.
  • the bonding extends continuously over more than 80%, preferably more than 90% and even more preferably 100%, of the overlapping surface of the edges.
  • the auxiliary longitudinal section comprises an inner longitudinal edge fixed to the lower edge of the corresponding side sill spar.
  • the lower edge of the sill spar is formed by a joining rabbet of at least two sections assembled to each other to form said spar.
  • the auxiliary longitudinal profile has an inverted U-shaped cross section.
  • the inner longitudinal edge and the outer edge of the auxiliary longitudinal profile form flanges, respectively, at both ends of the inverted U-shaped profile.
  • said structure comprises a roof and the adjacent portion of the body side is in one piece and extends to the roof.
  • the invention also relates to a method of assembling a body structure of a vehicle, remarkable in that the structure is in accordance with the invention and the attachment between the auxiliary longitudinal section and the adjacent portion of the side of crate is carried out by the two following steps: a) gluing; followed by b) clinching.
  • the measures of the invention are interesting in that they make it possible to limit the degradation by rust of the lower portions of the body sides of motor vehicles and consequently to improve these structures.
  • the clinching operations indeed has the advantage, compared to the electric resistance welding, to work cold and, therefore, not to degrade the bonding done beforehand.
  • FIG. 1 is a sectional view of a rocker of a vehicle structure according to the invention.
  • FIG. 2 is a perspective view of the lower part of a rocker of a vehicle structure according to the invention.
  • FIG. 1 represents a section of a rocker 2 of a vehicle structure, at the level of the floor 3.
  • This underside 2 consists of a spar 13 formed by an outer profile 5 and an inner profile 7 which are assembled by their lower lateral wings 10, 12 and 9, 1 1 so that their concavities are turned towards each other and thus form the spar 13.
  • a pre-stamped sheet 15 covers this spar 13 and is part of a body side that covers the outside of the vehicle.
  • the sheet 15 in question is formed in one piece and extends to the roof of the vehicle. In this case in FIG. 1 only the lower part of this part is represented, namely the part corresponding to the rocker 2.
  • the assembly of this sheet 15 to the spar 13 is made at the level of the lateral wings 9, 10, 1 1, 12 profiles 5 and 7.
  • connection with the upper side wings 9, 1 1 being a direct connection and that with the lower side wings 10, 12 being made with an auxiliary longitudinal metal profile 17.
  • This profile 17 s' extends parallel between the lower portion 19 of the body side 15 and the outer profile 5 of the spar 13, a predetermined transverse distance. It constitutes in a way a longitudinal extension of the lower portion 19 of the body side 15 which delimits with the outer profile of the spar 13 a hollow body 21 not necessarily sealed.
  • This longitudinal profile 17 may have different shapes, however for reasons of aesthetic order, especially to hide the spar 13, it is generally formed by an inverted U-shaped part. According to the preferred embodiment shown in FIG. 1, one end of this U-shaped section 17 has an inner longitudinal edge 23 and the other end an outer longitudinal edge 25.
  • Attachment of the U-shaped auxiliary longitudinal channel 17 between the lower portion 19 of the body side 15 and the lower side wings 10, 12 of the sections 5, 7 of the spar 13 is usually achieved by continuous or discontinuous welding points. Glue or putty may also be applied prior to the welding step but when water stagnates at the bowl area 31 this has the effect of corroding the solder points. The glue is then altered by the rust resulting from this corrosion and this results in weakening the fixing of the outer longitudinal edge 25 of the U-shaped auxiliary longitudinal profile 17 with the lower portion 19 of the body side 15. Also to avoid this problem, the outer longitudinal edge 25 of the U-shaped section 17 is in fact attached to the lower longitudinal edge 33 of the adjacent portion 27 of the body side 15 by a combination of bonding and clinching. This assembly is made in the portion where the two edges 25, 33 are superimposed. It thus consists in a first time to glue the two edges 25, 33 and then to fix them by clinching points.
  • the bonding step allows in fact to position and pre-maintain the two edges 25, 33 superimposed to be able to apply the clinching points. It is preferably carried out in a continuous manner so that the adhesive also provides a sealing role.
  • the clinching step is a cold assembly which is particularly interesting because the clinching points, unlike the weld points, are not likely to be oxidized by the corrosion and therefore to degrade the adhesive resulting in a deterioration of 2. For this reason, this method of assembly by gluing and clinching is therefore particularly advantageous for protecting the connection between the outer longitudinal edge 25 of the auxiliary longitudinal profile 17 in the form of corrosion. of U and the lower longitudinal edge 33 of the adjacent portion 27 of the lower portion 19 of the body side 15. It is all the easier to implement that the clinching points are preferably made every 100mm to ensure good holding superimposed edges 25, 33.
  • edges 25, 33 of the U-shaped longitudinal profile 17 and the adjacent portion 27 of the body side 15 can be inclined relative to the horizontal. This inclination is very slight, the angle of inclination may be for example between 1 ° -20 °. This inclination therefore does not alter the U-shaped profile of the profile 17.
  • the channel 17 in U can advantageously have a part forming a gutter 39.
  • the latter is then in this case placed close to and below the superimposed edges 25, 33 of the profile 17 and of the adjacent portion 27 of the body side 15.
  • FIG. 2 is a perspective view from below of the lower part of a body side 15 joined to the U-shaped auxiliary longitudinal profile 17 which is itself also fixed to the spar 13.
  • FIG. auxiliary longitudinal section 17 is a longitudinal profile which is fixed between the lower part of a body side 15 and the outer longitudinal edge of the spar 13.
  • the connection between the lower longitudinal edge 33 (not visible ) of the adjacent portion 27 of the body side 15 and the outer longitudinal edge 25 (not visible) of the auxiliary longitudinal profile 17, is represented by an arrow.
  • the bottom wall 35 of the U of the longitudinal section 17 has orifices 37 over at least part of its length, but these orifices 37 do not have a role of evacuation of water.
  • an anti-gravelling layer is also preferably applied by default. This layer, which also indirectly reinforces the tightness of the lower portion 19 of the body side 15, is also applied to the outer surface of the U-shaped longitudinal profile 17 and thus to the clinch-glued assembly zone of the edges 25. 33 but for the sake of clarity it has not been shown in Figures 1 and 2.

Abstract

The invention relates to a motor vehicle structure (1) which comprises two laterally situated side members (13) for rocker panels (2) and two side panels (15) also situated laterally. Each of these side panels (15) comprises a lower portion (19) which is secured to a lower edge (23) of the corresponding side member (13) for a rocker panel (2) and, in the case of at least one of the side panels (15), the lower portion (19) is formed by an auxiliary longitudinal section (17) attached to an adjacent portion (27) of the side panel (15) by a combination of bonding and clinching.

Description

STRUCTURE DE BAS DE CAISSE POUR VEHICULE AUTOMOBILE  BODY STRUCTURE FOR MOTOR VEHICLE
La présente invention se rapporte à une structure de véhicule automobile et plus particulièrement à la portion inférieure du bas de caisse. The present invention relates to a motor vehicle structure and more particularly to the lower portion of the underside.
La structure de bas de caisse d'un véhicule automobile comprend deux longerons disposés latéralement de part et d'autre du véhicule, sur lesquels est fixé le plancher. Chacun de ces longerons est habituellement composé d'un profilé extérieur et d'un profilé intérieur. La face du profilé extérieur orientée vers la face à l'extérieur du véhicule est recouverte par une tôle emboutie qui constitue un côté d'habitacle, également communément appelé peau ou côté de caisse. Pour des raisons d'ordre esthétiques et stylistiques, la partie inférieure de cette tôle présente généralement un renflement vers l'extérieur dont le rôle est de masquer la vue de l'ensemble des profilés de longeron. Mais ce renflement a également pour conséquence que la tôle utilisée dans la conception du côté de caisse doit être d'une certaine une hauteur, or l'emboutissage d'un côté de caisse est aussi soumis à des contraintes d'ordre technologiques. Ainsi, bien que sa réalisation puisse être effectuée de préférence par une seule opération d'emboutissage, la hauteur du côté de caisse est néanmoins limitée par la largeur d'emboutissage maximum des outils. Ceci s'avère être notamment un inconvénient pour la conception des véhicules utilitaires car la hauteur des côtés d'habitacle de ce type de véhicule est généralement plus élevée que celui des berlines. Il résulte donc de ces limitations techniques qu'une portion de tôle peut manquer à la partie inférieure du côté de caisse pour que ce dernier puisse être directement assemblé sur le longeron correspondant. The underside structure of a motor vehicle comprises two side members arranged laterally on either side of the vehicle, on which the floor is fixed. Each of these longitudinal members is usually composed of an outer profile and an inner profile. The face of the outer profile facing the outside of the vehicle is covered by a stamped sheet which constitutes a cockpit side, also commonly called skin or body side. For aesthetic and stylistic reasons, the lower part of this sheet usually has an outward bulge whose role is to hide the view of all the beam profiles. But this bulge also has the consequence that the sheet used in the design of the body side must be of a certain height, or the stamping of a body side is also subject to technological constraints. Thus, although its realization can be carried out preferably by a single stamping operation, the height of the body side is nevertheless limited by the maximum stamping width of the tools. This proves to be particularly a drawback for the design of commercial vehicles because the height of the interior sides of this type of vehicle is generally higher than that of sedans. It therefore follows from these technical limitations that a portion of sheet metal may be missing at the bottom of the body side so that the latter can be directly assembled on the corresponding spar.
Le document brevet publié FR 2 922 509 A1 aborde la problématique de mise en forme par emboutissage de la portion inférieure des côtés de caisse, formant les renflements en vis-à-vis des longerons. A cet effet, ce document propose une solution consistant à rapporter une pièce métallique auxiliaire entre la portion inférieure du côté de caisse et le bord inférieur du longeron extérieur pour diminuer la profondeur d'emboutissage du côté de caisse. Généralement la pièce auxiliaire se présente sous la forme d'un U renversé dont la concavité est tournée vers l'intérieur du corps creux non étanche délimité par la face intérieure du côté de caisse et la face extérieure du longeron extérieur. Cette orientation fait par ailleurs que la partie de la pièce en U orientée du côté du renflement de la portion inférieure du côté de caisse forme un creux. Ainsi lorsque de l'eau pénètre dans le corps creux que forme le longeron, elle a tendance à stagner dans cette cavité. Ceci a pour conséquence de favoriser la corrosion des points de soudure reliant la pièce intermédiaire en U au côté de caisse et donc de fragiliser la partie inférieure du bas de caisse et entraîner sa détérioration. The patent document published FR 2 922 509 A1 addresses the problem of forming by stamping of the lower portion of the body sides, forming the bulges vis-à-vis the longitudinal members. For this purpose, this document proposes a solution consisting in reporting an auxiliary metal part between the lower portion of the body side and the lower edge of the outer spar to reduce the drawing depth of the body side. Generally the auxiliary part is in the form of an inverted U whose concavity is turned towards the inside of the hollow non-sealed body delimited by the inner face of the body side and the outer face of the outer spar. This orientation is also the part of the U-shaped part oriented on the bulge side of the lower portion of the body side forms a hollow. Thus when water enters the hollow body that forms the spar, it tends to stagnate in this cavity. This has the effect of promoting the corrosion of the weld points connecting the U-shaped intermediate piece to the body side and thus weaken the lower part of the underside and cause its deterioration.
L'invention a pour objectif de pallier au moins un des inconvénients de l'état de la technique susmentionné. Plus particulièrement, l'invention a pour objectif de limiter la corrosion des bas de caisse des véhicules automobiles, en particulier des véhicules type utilitaires. Par ailleurs, l'invention vise une solution simple, économique et facile à mettre en œuvre sur la plupart des véhicules. The invention aims to overcome at least one of the disadvantages of the state of the art mentioned above. More particularly, the invention aims to limit the corrosion of the sills of motor vehicles, especially utility type vehicles. Furthermore, the invention aims a simple solution, economical and easy to implement on most vehicles.
A cet effet, l'invention a pour objet une structure de véhicule automobile, comprenant : deux longerons de bas de caisse situés latéralement de part et d'autre du véhicule, respectivement ; deux côtés de caisse disposés latéralement de part et d'autre du véhicule, respectivement, et comprenant, chacun, une portion inférieure fixée à un bord inférieur du longeron de bas de caisse correspondant ; remarquable en ce que pour au moins un des côtés de caisse, la portion inférieure est formée par un profilé longitudinal auxiliaire fixé à une portion adjacente dudit côté de caisse par une combinaison de collage et de clinchage. To this end, the invention relates to a motor vehicle structure, comprising: two side sill spars located laterally on either side of the vehicle, respectively; two body sides arranged laterally on either side of the vehicle, respectively, and each comprising a lower portion fixed to a lower edge of the corresponding side sill spar; remarkable in that for at least one of the body sides, the lower portion is formed by an auxiliary longitudinal profile attached to an adjacent portion of said body side by a combination of gluing and clinching.
Selon un mode avantageux de l'invention, le profilé longitudinal auxiliaire comprend un bord longitudinal extérieur superposé à un bord longitudinal inférieur de la portion adjacente, la fixation par la combinaison de collage et clinchage étant entre lesdits bords. According to an advantageous embodiment of the invention, the auxiliary longitudinal profile comprises an outer longitudinal edge superimposed on a lower longitudinal edge of the adjacent portion, the attachment by the gluing and clinching combination being between said edges.
Selon un mode avantageux de l'invention, les bords superposés du profilé longitudinal auxiliaire et de la portion adjacente du côté de caisse présentent un profil transversal incliné par rapport à l'horizontale de manière à éviter une stagnation d'eau sur lesdits bords. L'inclinaison est avantageusement supérieure à 1 °, préférentiellement 5° et/ou inférieure à 45°, préférentiellement 20°. According to an advantageous embodiment of the invention, the superposed edges of the auxiliary longitudinal profile and the adjacent portion of the body side have a transverse profile inclined relative to the horizontal so as to avoid stagnation of water on said edges. The inclination is advantageously greater than 1 °, preferably 5 ° and / or less than 45 °, preferably 20 °.
Selon un mode avantageux de l'invention, le profilé longitudinal auxiliaire présente un profil transversal avec une partie formant une gouttière, ladite partie étant adjacente et en contre bas des bords superposés du profilé longitudinal auxiliaire et de la portion adjacente du côté de caisse. Selon un mode avantageux de l'invention, le collage est continu le long des bords de manière à assurer une étanchéité à l'eau et une protection de l'interface contre la corrosion. According to an advantageous embodiment of the invention, the auxiliary longitudinal profile has a transverse profile with a part forming a gutter, said portion being adjacent and downwards superimposed edges of the auxiliary longitudinal profile and the adjacent portion of the body side. According to an advantageous embodiment of the invention, the bonding is continuous along the edges so as to ensure watertightness and protection of the interface against corrosion.
Avantageusement, le collage s'étend de manière continue sur plus de 80%, préférentiellement plus de 90% et encore plus préférentiellement 100%, de la surface de superposition des bords. Advantageously, the bonding extends continuously over more than 80%, preferably more than 90% and even more preferably 100%, of the overlapping surface of the edges.
Selon un mode avantageux de l'invention, le profilé longitudinal auxiliaire comprend un bord longitudinal intérieur fixé au bord inférieur du longeron de bas de caisse correspondant. Avantageusement, le bord inférieur du longeron de bas de caisse est formé par une feuillure de jonction d'au moins deux profilés assemblés l'un à l'autre pour former ledit longeron. According to an advantageous embodiment of the invention, the auxiliary longitudinal section comprises an inner longitudinal edge fixed to the lower edge of the corresponding side sill spar. Advantageously, the lower edge of the sill spar is formed by a joining rabbet of at least two sections assembled to each other to form said spar.
Selon un mode avantageux de l'invention, le profilé longitudinal auxiliaire présente une section transversale en U inversé. Selon un mode avantageux de l'invention, le bord longitudinal intérieur et le bord extérieur du profilé longitudinal auxiliaire forment des ailes, respectivement, aux deux extrémités du profil en U inversé. According to an advantageous embodiment of the invention, the auxiliary longitudinal profile has an inverted U-shaped cross section. According to an advantageous embodiment of the invention, the inner longitudinal edge and the outer edge of the auxiliary longitudinal profile form flanges, respectively, at both ends of the inverted U-shaped profile.
Selon un mode avantageux de l'invention, ladite structure comprend un toit et la portion adjacente du côté de caisse est d'un seul tenant et s'étend jusqu'au toit. L'invention a également pour objet un procédé d'assemblage d'une structure de caisse d'un véhicule, remarquable en ce que la structure est conforme à l'invention et la fixation entre le profilé longitudinal auxiliaire et la portion adjacente du côté de caisse est réalisée par les deux étapes suivantes: a) collage ; suivi de b) clinchage. According to an advantageous embodiment of the invention, said structure comprises a roof and the adjacent portion of the body side is in one piece and extends to the roof. The invention also relates to a method of assembling a body structure of a vehicle, remarkable in that the structure is in accordance with the invention and the attachment between the auxiliary longitudinal section and the adjacent portion of the side of crate is carried out by the two following steps: a) gluing; followed by b) clinching.
Les mesures de l'invention sont intéressantes en ce qu'elles permettent de limiter la dégradation par la rouille des portions inférieures des côtés de caisse des véhicules automobiles et en conséquence d'améliorer ces structures. Les opérations de clinchage présente en effet l'avantage, par rapport à la soudure électrique par résistance, de travailler à froid et, partant, de ne pas dégrader le collage réalisé préalablement. L'invention sera mieux comprise et d'autres caractéristiques et avantages apparaîtront plus clairement à l'aide de la description qui va suivre et des dessins schématiques donnés uniquement à titre d'exemple et parmi lesquels : The measures of the invention are interesting in that they make it possible to limit the degradation by rust of the lower portions of the body sides of motor vehicles and consequently to improve these structures. The clinching operations indeed has the advantage, compared to the electric resistance welding, to work cold and, therefore, not to degrade the bonding done beforehand. The invention will be better understood and other features and advantages will appear more clearly with the help of the description which follows and schematic drawings given solely by way of example and among which:
- La figure 1 est une vue en coupe d'un bas de caisse d'une structure de véhicule selon l'invention; et - Figure 1 is a sectional view of a rocker of a vehicle structure according to the invention; and
- La figure 2 est une vue en perspective de la partie inférieure d'un bas de caisse d'une structure de véhicule selon l'invention. - Figure 2 is a perspective view of the lower part of a rocker of a vehicle structure according to the invention.
Il est a précisé que dans la présente description les termes « transversal » et « longitudinal » s'entendent bien entendu par rapport à l'ensemble de la carrosserie. Les termes « extérieur(s) » et « intérieur(s) » s'entendent par rapport au véhicule. It is specified that in the present description the terms "transverse" and "longitudinal" are of course in relation to the entire body. The terms "exterior (s)" and "interior (s)" refer to the vehicle.
La figure 1 représente une coupe d'un bas de caisse 2 d'une structure de véhicule, au niveau du plancher 3. Ce bas de caisse 2 est constitué d'un longeron 13 formé par un profilé extérieur 5 et un profilé intérieur 7 qui sont assemblés par leurs ailes latérales inférieures 10, 12 et supérieures 9, 1 1 de façon à ce que leurs concavités soient tournées l'une vers l'autre et forment ainsi le longeron 13. Une tôle 15 pré-emboutie recouvre ce longeron 13 et fait partie d'un côté de caisse qui recouvre le côté extérieur du véhicule. La tôle 15 en question est formée d'un seul tenant et s'étend jusqu'au toit du véhicule. En l'occurrence dans la figure 1 seule la partie inférieure de cette pièce est représentée, à savoir la partie correspondant au bas de caisse 2. L'assemblage de cette tôle 15 au longeron 13 est réalisée au niveau des ailes latérales 9, 10, 1 1 , 12 des profilés 5 et 7. La liaison avec les ailes latérales supérieures 9, 1 1 étant une liaison directe et celle avec les ailes latérales inférieures 10, 12 étant réalisée avec un profilé métallique longitudinal auxiliaire 17. Ce profilé 17 s'étend parallèlement entre la portion inférieure 19 du côté de caisse 15 et le profilé extérieur 5 du longeron 13, sur une distance transversale prédéterminée. Il constitue en quelque sorte une extension longitudinale de la portion inférieure 19 du côté de caisse 15 qui délimite avec le profilé extérieur du longeron 13 un corps creux 21 non nécessairement étanche. Ce profilé longitudinal 17 peut présenter différentes formes, toutefois pour des raisons d'ordre esthétique, notamment pour masquer le longeron 13, il est généralement formé par une pièce en forme de U renversé. Selon le mode de réalisation préféré présenté sur la figure 1 , une extrémité de ce profilé 17 en U présente un bord longitudinal intérieur 23 et l'autre extrémité un bord longitudinal extérieur 25. Ces deux bords 23, 25 forment ainsi des ailes qui permettent de relier le profilé longitudinal auxiliaire 17 respectivement à une portion adjacente 27 de la portion inférieure 19 du côté de caisse 15 et au bord inférieur 29 du longeron 13, en l'occurrence de son profilé extérieur 5. Comme il est visible sur la figure 1 , il résulte que l'orientation de cette pièce 17 en forme de U se traduit par la mise en place à proximité du bord longitudinal extérieur 25 de cette pièce d'un renforcement 31 qui tient lieu de cuvette lorsque de l'eau pénètre dans le corps creux 21 . FIG. 1 represents a section of a rocker 2 of a vehicle structure, at the level of the floor 3. This underside 2 consists of a spar 13 formed by an outer profile 5 and an inner profile 7 which are assembled by their lower lateral wings 10, 12 and 9, 1 1 so that their concavities are turned towards each other and thus form the spar 13. A pre-stamped sheet 15 covers this spar 13 and is part of a body side that covers the outside of the vehicle. The sheet 15 in question is formed in one piece and extends to the roof of the vehicle. In this case in FIG. 1 only the lower part of this part is represented, namely the part corresponding to the rocker 2. The assembly of this sheet 15 to the spar 13 is made at the level of the lateral wings 9, 10, 1 1, 12 profiles 5 and 7. The connection with the upper side wings 9, 1 1 being a direct connection and that with the lower side wings 10, 12 being made with an auxiliary longitudinal metal profile 17. This profile 17 s' extends parallel between the lower portion 19 of the body side 15 and the outer profile 5 of the spar 13, a predetermined transverse distance. It constitutes in a way a longitudinal extension of the lower portion 19 of the body side 15 which delimits with the outer profile of the spar 13 a hollow body 21 not necessarily sealed. This longitudinal profile 17 may have different shapes, however for reasons of aesthetic order, especially to hide the spar 13, it is generally formed by an inverted U-shaped part. According to the preferred embodiment shown in FIG. 1, one end of this U-shaped section 17 has an inner longitudinal edge 23 and the other end an outer longitudinal edge 25. These two edges 23, 25 form and wings that connect the auxiliary longitudinal section 17 respectively to an adjacent portion 27 of the lower portion 19 of the body side 15 and the lower edge 29 of the spar 13, in this case its outer profile 5. As it is visible in Figure 1, it follows that the orientation of the U-shaped piece 17 is reflected by the establishment in the vicinity of the outer longitudinal edge 25 of this piece of a reinforcement 31 which takes the place of bowl when the l water enters the hollow body 21.
La fixation du profilé longitudinal auxiliaire 17 en forme de U entre la portion inférieure 19 du côté de caisse 15 et les ailes latérales inférieures 10, 12 des profilés 5, 7 du longeron 13 est habituellement réalisée par des points de soudage continu ou discontinu. De la colle ou du mastic peuvent être également appliqués au préalable à l'étape de soudage mais lorsque de l'eau stagne au niveau de la zone en forme de cuvette 31 cela a pour effet de corroder les points de soudure. La colle est alors altérée par la rouille résultante de cette corrosion et ceci a pour résultat de fragiliser la fixation du bord longitudinal extérieur 25 du profilé longitudinal auxiliaire 17 en forme de U avec la portion inférieure 19 du côté de caisse 15. Aussi pour éviter ce problème, le bord longitudinal extérieur 25 du profilé 17 en U est en fait fixé au bord longitudinal inférieur 33 de la portion adjacente 27 du côté de caisse 15 par une combinaison de collage et clinchage. Cet assemblage est réalisé dans la portion où les deux bords 25, 33 sont superposés. Il consiste ainsi dans un premier temps à coller les deux bords 25, 33 et ensuite à les fixer par points de clinchage. Attachment of the U-shaped auxiliary longitudinal channel 17 between the lower portion 19 of the body side 15 and the lower side wings 10, 12 of the sections 5, 7 of the spar 13 is usually achieved by continuous or discontinuous welding points. Glue or putty may also be applied prior to the welding step but when water stagnates at the bowl area 31 this has the effect of corroding the solder points. The glue is then altered by the rust resulting from this corrosion and this results in weakening the fixing of the outer longitudinal edge 25 of the U-shaped auxiliary longitudinal profile 17 with the lower portion 19 of the body side 15. Also to avoid this problem, the outer longitudinal edge 25 of the U-shaped section 17 is in fact attached to the lower longitudinal edge 33 of the adjacent portion 27 of the body side 15 by a combination of bonding and clinching. This assembly is made in the portion where the two edges 25, 33 are superimposed. It thus consists in a first time to glue the two edges 25, 33 and then to fix them by clinching points.
L'étape de collage permet en fait de positionner et de pré-maintenir les deux bords 25, 33 superposés pour pouvoir appliquer les points de clinchage. Elle est réalisée de préférence de façon continue de manière à ce que la colle assure aussi un rôle d'étanchéité. L'étape de clinchage est un assemblage à froid qui est particulièrement intéressant car les points de clinchage, à l'inverse des points de soudure, ne sont pas susceptibles d'être oxydés par la corrosion et donc de dégrader la colle entraînant une détérioration de la zone de fixation et une fragilisation du bas de caisse 2. Pour cette raison, ce procédé d'assemblage par collage et clinchage est donc particulièrement intéressant pour protéger de la corrosion la liaison entre le bord longitudinal extérieur 25 du profilé longitudinal auxiliaire 17 en forme de U et le bord longitudinal inférieur 33 de la portion adjacente 27 de la portion inférieure 19 du côté de caisse 15. Il est d'autant plus facile à mettre en œuvre que les points de clinchage sont réalisés de préférence tous les 100mm afin d'assurer une bonne tenue des bords superposés 25, 33. The bonding step allows in fact to position and pre-maintain the two edges 25, 33 superimposed to be able to apply the clinching points. It is preferably carried out in a continuous manner so that the adhesive also provides a sealing role. The clinching step is a cold assembly which is particularly interesting because the clinching points, unlike the weld points, are not likely to be oxidized by the corrosion and therefore to degrade the adhesive resulting in a deterioration of 2. For this reason, this method of assembly by gluing and clinching is therefore particularly advantageous for protecting the connection between the outer longitudinal edge 25 of the auxiliary longitudinal profile 17 in the form of corrosion. of U and the lower longitudinal edge 33 of the adjacent portion 27 of the lower portion 19 of the body side 15. It is all the easier to implement that the clinching points are preferably made every 100mm to ensure good holding superimposed edges 25, 33.
Afin de limiter la stagnation d'eau sur les bords superposés 25, 33 du profilé longitudinal 17 en forme de U et de la portion adjacente 27 du côté de caisse 15, ces bords 25, 33 peuvent être inclinés par rapport à l'horizontale. Cette inclinaison est très légère, l'angle d'inclinaison pouvant être compris par exemple entre 1 °-20°. Cette inclinaison ne modifie donc en rien le profil en U du profilé 17. In order to limit the stagnation of water on the superimposed edges 25, 33 of the U-shaped longitudinal profile 17 and the adjacent portion 27 of the body side 15, these edges 25, 33 can be inclined relative to the horizontal. This inclination is very slight, the angle of inclination may be for example between 1 ° -20 °. This inclination therefore does not alter the U-shaped profile of the profile 17.
Pour les mêmes raisons d'évacuation d'eau, le profilé 17 en U peut avantageusement présenter une partie formant une gouttière 39. Cette dernière est alors dans ce cas placée à proximité et en contre bas des bords superposés 25, 33 du profilé 17 et de la portion adjacente 27 du côté de caisse 15. For the same reasons of water evacuation, the channel 17 in U can advantageously have a part forming a gutter 39. The latter is then in this case placed close to and below the superimposed edges 25, 33 of the profile 17 and of the adjacent portion 27 of the body side 15.
La figure 2 est une vue en perspective et par en dessous de la partie inférieure d'un côté de caisse 15 assemblée à au profilé longitudinal auxiliaire 17 en forme de U renversé qui est lui-même également fixé au longeron 13. Comme illustré, ce profilé longitudinal auxiliaire 17 est un profilé longitudinal qui est fixé entre la partie inférieure d'un côté de caisse 15 et le bord longitudinal extérieur du longeron 13. En l'occurrence sur cette figure 2 la liaison entre le bord longitudinal inférieur 33 (non visible) de la partie adjacente 27 du côté de caisse 15 et le bord longitudinal extérieur 25 (non visible) du profilé longitudinal auxiliaire 17, est représentée par une flèche. Il est à noter par ailleurs que la paroi de fond 35 du U du profilé longitudinal 17 présente des orifices 37 sur une partie au moins de sa longueur mais ces orifices 37 n'ont pas un rôle d'évacuation d'eau, ils servent en effet uniquement à faciliter l'étape de cataphorèse du bas de caisse 2 du véhicule et ils sont ensuite rebouchés. Pour protéger la surface inférieure de la structure de bas de caisse 2 du véhicule une couche anti-gravillonnage est également de préférence appliquée par défaut. Cette couche, qui renforce aussi indirectement l'étanchéité de la portion inférieure 19 du côté de caisse 15, est également appliquée sur la surface extérieure du profilé longitudinal 17 en forme de U et donc sur la zone d'assemblage clincho-collée des bords 25, 33 mais pour des raisons de clarté elle n'a pas été représentée sur les figures 1 et 2. FIG. 2 is a perspective view from below of the lower part of a body side 15 joined to the U-shaped auxiliary longitudinal profile 17 which is itself also fixed to the spar 13. As illustrated, FIG. auxiliary longitudinal section 17 is a longitudinal profile which is fixed between the lower part of a body side 15 and the outer longitudinal edge of the spar 13. In this case in this figure 2 the connection between the lower longitudinal edge 33 (not visible ) of the adjacent portion 27 of the body side 15 and the outer longitudinal edge 25 (not visible) of the auxiliary longitudinal profile 17, is represented by an arrow. It should be noted, moreover, that the bottom wall 35 of the U of the longitudinal section 17 has orifices 37 over at least part of its length, but these orifices 37 do not have a role of evacuation of water. effect only to facilitate the stage of cataphoresis rocker 2 of the vehicle and they are then rebouchés. To protect the lower surface of the rocker structure 2 of the vehicle an anti-gravelling layer is also preferably applied by default. This layer, which also indirectly reinforces the tightness of the lower portion 19 of the body side 15, is also applied to the outer surface of the U-shaped longitudinal profile 17 and thus to the clinch-glued assembly zone of the edges 25. 33 but for the sake of clarity it has not been shown in Figures 1 and 2.

Claims

Revendications claims
1 . Structure (1 ) de véhicule automobile, comprenant : 1. Structure (1) of a motor vehicle, comprising:
- deux longerons (13) de bas de caisse (2) situés latéralement de part et d'autre du véhicule, respectivement ;  - two side members (13) of sill (2) located laterally on either side of the vehicle, respectively;
- deux côtés de caisse (15) disposés latéralement de part et d'autre du véhicule, respectivement, et comprenant, chacun, une portion inférieure 19 fixée à un bord inférieur 29 du longeron (13) de bas de caisse (2) correspondant ;  - Two body sides (15) arranged laterally on either side of the vehicle, respectively, and each comprising a lower portion 19 fixed to a lower edge 29 of the sill (13) sill (2) corresponding;
caractérisé en ce que  characterized in that
pour au moins un des côtés de caisse (15), la portion inférieure (19) est formée par un profilé (17) longitudinal auxiliaire fixé à une portion adjacente (27) dudit côté de caisse (15) par une combinaison de collage et de clinchage.  for at least one of the body sides (15), the lower portion (19) is formed by an auxiliary longitudinal profile (17) attached to an adjacent portion (27) of said body side (15) by a combination of glue and clinching.
2. Structure selon la revendication 1 , caractérisée en ce que le profilé (17) longitudinal auxiliaire comprend un bord longitudinal extérieur (25) superposé à un bord longitudinal inférieur (33) de la portion adjacente (27), la fixation par la combinaison de collage et clinchage étant entre lesdits bords (25, 33). 2. Structure according to claim 1, characterized in that the auxiliary longitudinal profile (17) comprises an outer longitudinal edge (25) superimposed on a lower longitudinal edge (33) of the adjacent portion (27), the fixing by the combination of bonding and clinching being between said edges (25, 33).
3. Structure selon la revendication 2, caractérisée en ce que les bords (25, 33) superposés du profilé (17) longitudinal auxiliaire et de la portion adjacente (27) du côté de caisse (15) présentent un profil transversal incliné par rapport à l'horizontale de manière à éviter une stagnation d'eau sur lesdits bords (25, 33). 3. Structure according to claim 2, characterized in that the edges (25, 33) superimposed of the longitudinal profile (17) auxiliary and the adjacent portion (27) of the body side (15) have a transverse profile inclined with respect to horizontally so as to avoid stagnation of water on said edges (25, 33).
4. Structure selon la revendication 3, caractérisée en ce que le profilé (17) longitudinal auxiliaire présente un profil transversal avec une partie formant une gouttière (39), ladite partie étant adjacente et en contre bas des bords superposés (25, 33) du profilé longitudinal auxiliaire et de la portion adjacente (27) du côté de caisse (15). 4. Structure according to claim 3, characterized in that the auxiliary longitudinal profile (17) has a transverse profile with a portion forming a gutter (39), said portion being adjacent and below the superimposed edges (25, 33) of auxiliary longitudinal profile and the adjacent portion (27) of the body side (15).
5. Structure selon l'une des revendications 1 à 4, caractérisée en ce que le collage est continu le long des bords (25, 33) de manière à assurer une étanchéité à l'eau. 5. Structure according to one of claims 1 to 4, characterized in that the bonding is continuous along the edges (25, 33) so as to ensure watertightness.
6. Structure selon l'une des revendications 1 à 5, caractérisée en ce que le profilé (17) longitudinal auxiliaire comprend un bord longitudinal intérieur (23) fixé au bord inférieur (29) du longeron (13) de bas de caisse 2 correspondant. 6. Structure according to one of claims 1 to 5, characterized in that the profile (17) auxiliary longitudinal comprises an inner longitudinal edge (23) fixed to the lower edge (29) of the spar (13) sill 2 corresponding .
7. Structure selon l'une des revendications 1 à 6, caractérisée en ce que le profilé (17) longitudinal auxiliaire présente une section transversale en U inversé. 7. Structure according to one of claims 1 to 6, characterized in that the profile (17) auxiliary longitudinal has an inverted U-shaped cross section.
8. Structure selon les revendications 2, 6 et 7, caractérisée en ce que le bord longitudinal intérieur (23) et le bord extérieur (25) du profilé (17) longitudinal auxiliaire forment des ailes, respectivement, aux deux extrémités du profilé (17) en U inversé. 8. Structure according to claims 2, 6 and 7, characterized in that the inner longitudinal edge (23) and the outer edge (25) of the longitudinal profile (17) auxiliary form wings, respectively, at both ends of the profile (17). ) U-shaped inverted.
9. Structure selon l'une des revendications 1 à 8, caractérisée en ce que ladite structure (1 ) comprend un toit et la portion adjacente (27) du côté de caisse (15) est d'un seul tenant et s'étend jusqu'au toit. 9. Structure according to one of claims 1 to 8, characterized in that said structure (1) comprises a roof and the adjacent portion (27) of the body side (15) is in one piece and extends to 'at the roof.
10. Procédé d'assemblage d'une structure (1 ) de caisse d'un véhicule, caractérisé en ce que la structure est selon l'une des revendications 1 à 9 et la fixation entre le profilé (17) longitudinal auxiliaire et la portion adjacente (27) du côté de caisse (15) est réalisée par les deux étapes suivantes: a) collage ; suivi de b) clinchage. 10. A method of assembling a body structure (1) of a vehicle, characterized in that the structure is according to one of claims 1 to 9 and the attachment between the longitudinal profile (17) auxiliary and the portion adjacent (27) on the body side (15) is performed by the two following steps: a) gluing; followed by b) clinching.
EP17817007.2A 2017-01-12 2017-12-08 Motor vehicle rocker panel structure Withdrawn EP3568337A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1750272A FR3061698B1 (en) 2017-01-12 2017-01-12 BODY STRUCTURE FOR MOTOR VEHICLE
PCT/FR2017/053460 WO2018130753A1 (en) 2017-01-12 2017-12-08 Motor vehicle rocker panel structure

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DE102019217259B4 (en) * 2019-11-08 2021-09-16 Psa Automobiles Sa Motor vehicle body and rocker assembly
FR3135438A1 (en) * 2022-05-10 2023-11-17 Psa Automobiles Sa Motor vehicle with underfloor air deflector

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SU1364524A1 (en) * 1985-04-16 1988-01-07 Волжское объединение по производству легковых автомобилей Car body base
SU1684151A1 (en) * 1989-04-18 1991-10-15 Волжское объединение по производству легковых автомобилей Joint of body base members in zone of niche for automobile rear wheel
FR2922509B1 (en) * 2007-10-19 2010-03-19 Peugeot Citroen Automobiles Sa BODY PANEL SIDE FOR MOTOR VEHICLE
DE102010048852A1 (en) * 2010-10-19 2012-04-19 Gm Global Technology Operations Llc (N.D.Ges.D. Staates Delaware) Sill arrangement of a motor vehicle body
US9340232B2 (en) * 2013-05-03 2016-05-17 Tesla Motors, Inc. Extrusion piece with insert of dissimilar material

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BR112019013636A2 (en) 2020-01-14
WO2018130753A1 (en) 2018-07-19
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RU2019125254A3 (en) 2021-02-12
RU2744417C2 (en) 2021-03-09
FR3061698A1 (en) 2018-07-13

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