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EP2162307A1 - Internal lining for an automobile vehicle door comprising a reinforcement welded between two casings, without reversal - Google Patents

Internal lining for an automobile vehicle door comprising a reinforcement welded between two casings, without reversal

Info

Publication number
EP2162307A1
EP2162307A1 EP08806036A EP08806036A EP2162307A1 EP 2162307 A1 EP2162307 A1 EP 2162307A1 EP 08806036 A EP08806036 A EP 08806036A EP 08806036 A EP08806036 A EP 08806036A EP 2162307 A1 EP2162307 A1 EP 2162307A1
Authority
EP
European Patent Office
Prior art keywords
reinforcement
envelope
heat source
casing
welding
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Withdrawn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
EP08806036A
Other languages
German (de)
French (fr)
Inventor
Jacques Lassausse
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
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
Publication of EP2162307A1 publication Critical patent/EP2162307A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/042—Reinforcement elements
    • B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
    • B60J5/0423—Elongated type elements, e.g. beams, cables, belts or wires characterised by position in the lower door structure
    • B60J5/0426—Elongated type elements, e.g. beams, cables, belts or wires characterised by position in the lower door structure the elements being arranged at the beltline
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
    • B60J5/00—Doors
    • B60J5/04—Doors arranged at the vehicle sides
    • B60J5/042—Reinforcement elements
    • B60J5/0422—Elongated type elements, e.g. beams, cables, belts or wires
    • B60J5/0438—Elongated type elements, e.g. beams, cables, belts or wires characterised by the type of elongated elements
    • B60J5/0443—Beams
    • B60J5/0444—Beams characterised by a special cross section

Definitions

  • the invention relates to an inner lining for a door of a motor vehicle comprising two rigid envelopes between which is disposed an internal reinforcement which is fixed to the two envelopes.
  • FIG. 1 A known liner of this type is shown in FIG. 1 and forms a means of protecting the occupants of the vehicle in the event of a side impact.
  • This lining 1 is with an outer panel 2 and a window 3 of the vehicle, the main elements of the side door of the vehicle.
  • the lining 1 is more particularly constituted by two outer envelopes 4, and inner 5 assembled to each other and together defining a cavity 7 in which is housed an internal reinforcement 9 which is secured by welding to the two envelopes 4, 5 l surrounding it.
  • the reinforcement 9 consists of a solid profile that can be secured to the envelopes 4 and 5 according to two different methods.
  • the assembly formed by the two envelopes 4, 5 and the reinforcement 9 interposed between them is fixed on a frame 11 rotatably mounted about a horizontal axis 12 relative to a built 13.
  • a laser beam 14 is used to weld the inner envelope 5 on the underlying reinforcement 9.
  • the reinforcement assembly 9 and envelopes 4, 5 are firstly disposed on a first frame 16 and rests on the outer casing 4 in order to weld by means of the beam 14. inner envelope 5 to the underlying reinforcement 9.
  • the reinforcement assembly 9 and envelopes 4, 5 is raised and turned on a horizontal axis 180 ° by a manipulator to be disposed on a second frame 17 on which the outer casing 4 is welded to the underlying reinforcement 9 by means of the laser beam 14.
  • the invention relates to an inner lining for a motor vehicle door, comprising two rigid envelopes between which is disposed an internal reinforcement which is fixed to the two envelopes.
  • the reinforcement comprises a hollow extending from a first envelope to a second envelope and allowing a heat source to weld the reinforcement to the second envelope, by acting through a hole made in the first envelope.
  • the hollow formed in the reinforcement comprises a bottom defined by a portion of the reinforcement having a thickness allowing the welding of the reinforcement on the second envelope when this reinforcing portion is irradiated by the heat source.
  • the reinforcement is a hollow section comprising a central wall constituting the part of the reinforcement intended to be welded to the second envelope.
  • the reinforcement further comprises two side walls extending on either side of the central wall and whose free ends are folded towards the central wall to define the welding cavity of the heat source.
  • the attachment between the first envelope and the reinforcement consists of a weld of this first envelope on a first of the two side walls of the reinforcement.
  • the attachment between the first envelope and the reinforcement consists of an additional weld of this first envelope on the second of the two side walls of the reinforcement.
  • the invention also relates to a welding method for fixing an internal reinforcement to two rigid envelopes of an inner lining for a door of a motor vehicle between which the reinforcement is arranged, a first of the two envelopes comprising a hole and the internal reinforcement being provided with a hollow in communication with the hole and extending from a first envelope to the second envelope and allowing a heat source to weld the reinforcement to the second envelope, acting through the hole in the first envelope.
  • this method comprises at least the steps of:
  • the method comprises the additional steps of: orienting the heat source on a second point of the first envelope adjacent to the reinforcement,
  • the actuation of the heat source is carried out for a predetermined duration.
  • FIG. 3 represents a second known method of welding the reinforcement of the lining of FIG. 1 to the two envelopes surrounding it;
  • Figure 4 is a view similar to Figure 1 with an inner liner according to the invention, and illustrating the formation of a first welding point according to the method of the invention;
  • FIG. 5 is a view similar to Figure 4 and illustrating the realization of a second weld spot
  • - Figure 6 is a view similar to Figure 5 showing the application of a third weld.
  • Figure 4 an inner lining for a door of a motor vehicle according to the invention, and an outer panel 2 of the door, between which a window 3 of the vehicle can slide.
  • This lining 21 is formed by the assembly of different rigid parts and is a means of protecting the occupant of the vehicle sitting on the seat adjacent to this door in case of side impact.
  • the lining 21 comprises two envelopes 22, 23 and a reinforcement 24 interposed therebetween. More specifically, one of the two envelopes is intended to constitute an outer envelope 22 accessible from the passenger compartment of the vehicle, the second envelope 23 constituting an inner envelope interposed between the outer envelope and the window 3, and which is therefore invisible since inside the passenger compartment of the vehicle.
  • the first envelope comprises an upper edge 26 horizontally skirting the window 3, three underlying panels 27 to 29 defining in cross section a general shape of C and a lower panel 30 extending substantially vertically to the lower edge of the door.
  • the inner casing 23 also comprises an upper edge 32 secured for example by electric soldering points along the upper edge 26 of the outer casing 22 and a panel 33 extending the edge 32 towards the bottom of the door and stopping substantially two-thirds of the central panel 28 of the outer shell 22.
  • the two envelopes 23, 23 together define an open cavity 34 intended to receive the reinforcement 24.
  • the two upper edges 26, 32 of the two envelopes 22, 23 are intended to serve as a support for a sealing liner which will be fitted on these two edges.
  • the lower panel 33 of the inner casing 23 comprises a hole 35 intended to serve as access to the beam of a heat source for securing the reinforcement 24 to the outer casing 22.
  • the reinforcement 24 has a generally hollow profile shape comprising a central wall 36 intended to follow the central panel 28 of the outer casing 22 and two side walls 37, 38 extending on either side of this central wall 36.
  • Each side wall 37, 38 is folded towards the central wall 36 without however joining each other, defining a recess 40 communicating with the hole 35 of the inner casing 23 and opening on the central wall 36 of this reinforcement 24 .
  • each side wall comprises a portion 42 substantially perpendicular to the central wall 36, extended by a second portion 43 itself substantially perpendicular to the portion 42 and finally an oblique portion 44 extending from the portion 43 and directed towards the central wall 36 of the reinforcement.
  • the two oblique portions 44 of the side walls define for the recess 40 a general funnel shape converging towards the central wall 36.
  • the panel 33 of the inner assembly 23 completely covers the portion 43 of the upper side wall 38 of the reinforcement and only half of the portion 43 of the other side wall 37 of the reinforcement 24.
  • the hole 35 of the panel 33 of the inner envelope 23 is located substantially midway between the two oblique portions 44 of side walls 37, 38.
  • the hole 35 made in the inner envelope 23 may consist of a light extending substantially horizontally along the panel 33 of the envelope internal 33 or in a multitude of holes extending in the same direction.
  • the hollow 40 of the reinforcement 24 and the hole 35 of the inner casing 23 allow a heat source to weld the reinforcement 24 on the outer casing 22 from the same side as for the welding of this reinforcement 24 to the inner envelope 23.
  • a welding point 47 is formed between the central wall 36 of the reinforcement 24 and the underlying panel 47 of the outer casing 22.
  • the laser beam 46 always oriented in the same direction and without any reversal of the assembly formed by the two envelopes 22, 23 and the reinforcement 24, then allows the realization of a second weld point 48 highlighted in FIG. 5, between the inner envelope 23 and the reinforcement 24.
  • the beam is oriented on a point of the panel 33 of the inner envelope 23 along the portion 43 of the internal reinforcement 24.
  • a third weld point 49 is advantageously made again along the same direction of the beam and still without any turning of the pieces 23, 23, 24 between a second point of the panel 33 along the portion 43 of the the other side wall 38 of the internal reinforcement 24 and the internal reinforcement 24.
  • the third point 49 is thus situated on the other side of the hole 35 relative to the second weld point 48.
  • the panel 33 of the casing 23 completely covers the portion 43 of the reinforcement, and likewise, the central wall 36 of the reinforcement 24 completely covers the central panel 28 of the outer casing 22, it is preferable to use a laser beam for solder by transparency for the solder points 49 and 47 which respectively join the panel 33 to said portion 43 and the central wall 36 of the reinforcement 24 to the central panel 28 of the outer casing.
  • the panel 33 stops substantially at the mid-length of the corresponding portion 43 of the lower side wall 37 of the internal reinforcement 24, it is possible to use as a welding means of this panel 33 to the portion 43 of this lower side wall 37 a laser beam for welding by transparency or a laser beam for welding clapboard.

Landscapes

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

Abstract

The invention concerns an internal lining for an automobile vehicle door, comprising two rigid casings (22, 23) between which is placed an internal reinforcement (24) which is secured to the two casings (22, 23). As per the invention, the reinforcement (24) comprises a hollow (40) extending from a first casing (22, 23) towards the second casing (22, 23) and enabling a heat source to weld the reinforcement (24) to the second casing (22, 23), by acting through an aperture (35) made in the first casing (22, 23). The invention has uses in the sector of internal linings for automobile vehicle doors.

Description

« Doublure intérieure pour une porte d'un véhicule automobile comprenant un renfort soudé entre deux enveloppes, sans retournement ». "Inner lining for a door of a motor vehicle comprising a reinforcement welded between two envelopes, without turning over".
L' invention concerne une doublure intérieure pour une porte d'un véhicule automobile comprenant deux enveloppes rigides entre lesquelles est disposé un renfort interne qui est fixé aux deux enveloppes.The invention relates to an inner lining for a door of a motor vehicle comprising two rigid envelopes between which is disposed an internal reinforcement which is fixed to the two envelopes.
Une doublure connue de ce type est représentée sur la figure 1 et forme un moyen de protection des occupants du véhicule en cas de choc latéral.A known liner of this type is shown in FIG. 1 and forms a means of protecting the occupants of the vehicle in the event of a side impact.
Cette doublure 1 constitue avec un panneau extérieur 2 et une vitre 3 du véhicule, les éléments principaux de la porte latérale de ce véhicule. La doublure 1 est plus particulièrement constituée par deux enveloppes externe 4, et interne 5 assemblées l'une à l'autre et définissant ensemble une cavité 7 dans laquelle est logé un renfort interne 9 qui est solidarisé par soudage au deux enveloppes 4, 5 l'entourant. Le renfort 9 est constitué par un profilé massif pouvant être solidarisé aux enveloppes 4 et 5 selon deux procédés différents.This lining 1 is with an outer panel 2 and a window 3 of the vehicle, the main elements of the side door of the vehicle. The lining 1 is more particularly constituted by two outer envelopes 4, and inner 5 assembled to each other and together defining a cavity 7 in which is housed an internal reinforcement 9 which is secured by welding to the two envelopes 4, 5 l surrounding it. The reinforcement 9 consists of a solid profile that can be secured to the envelopes 4 and 5 according to two different methods.
Selon le premier procédé illustré sur la figure 2, l'ensemble formé par les deux enveloppes 4, 5 et le renfort 9 interposé entre celles-ci est fixé sur un cadre 11 monté à rotation autour d'un axe horizontal 12 par rapport à un bâti 13.According to the first method illustrated in Figure 2, the assembly formed by the two envelopes 4, 5 and the reinforcement 9 interposed between them is fixed on a frame 11 rotatably mounted about a horizontal axis 12 relative to a built 13.
Dans la position initiale représentée en trait plein sur cette figure 2, un faisceau laser 14 est utilisé pour souder l'enveloppe interne 5 sur le renfort sous-jacent 9.In the initial position shown in solid lines in this FIG. 2, a laser beam 14 is used to weld the inner envelope 5 on the underlying reinforcement 9.
Suite à une rotation du cadre et des pièces qu' il supporte 4, 5, 9 autour de l'axe 12 de 180°, dont résulte le positionnement des pièces tel qu'un illustré en traits pointillés, l'enveloppe externe 4 est située au-dessus du renfort 9, et le faisceau laser 14 peut souder cette enveloppe 4 au renfort sous-jacent 9. Toutefois, ce procédé fait intervenir des moyens sophistiqués et coûteux afin de maintenir l'ensemble formé par les enveloppes 4, 5 et le renfort 9 solidaire du cadre 11 et afin de faire basculer cet ensemble et le cadre de 180° et ne peut garantir le maintien de la géométrie de cet ensemble.Following a rotation of the frame and the parts that it supports 4, 5, 9 about the axis 12 of 180 °, which results in the positioning of the parts as illustrated in dashed lines, the outer casing 4 is located above the reinforcement 9, and the laser beam 14 can weld this envelope 4 to the underlying reinforcement 9. However, this method involves sophisticated and costly means to maintain the assembly formed by the envelopes 4, 5 and the reinforcement 9 secured to the frame 11 and to tilt this assembly and the frame of 180 ° and can not guarantee the maintaining the geometry of this set.
Selon le second procédé illustré sur la figure 3, l'ensemble à renfort 9, et enveloppes 4, 5 est disposé dans un premier temps sur un premier bâti 16 et repose sur l'enveloppe externe 4 afin de souder au moyen du faisceau 14 l'enveloppe interne 5 au renfort sous-jacent 9. Dans un deuxième temps, l'ensemble à renfort 9 et enveloppes 4, 5 est surélevé et retourné selon un axe horizontal de 180° par un manipulateur pour être disposé sur un deuxième bâti 17 sur lequel l'enveloppe externe 4 est soudée au renfort sous-jacent 9 au moyen du faisceau laser 14.According to the second method illustrated in FIG. 3, the reinforcement assembly 9 and envelopes 4, 5 are firstly disposed on a first frame 16 and rests on the outer casing 4 in order to weld by means of the beam 14. inner envelope 5 to the underlying reinforcement 9. In a second step, the reinforcement assembly 9 and envelopes 4, 5 is raised and turned on a horizontal axis 180 ° by a manipulator to be disposed on a second frame 17 on which the outer casing 4 is welded to the underlying reinforcement 9 by means of the laser beam 14.
Si ce procédé évite l'utilisation du cadre rotatif de la figure 2, il nécessite l'utilisation de deux bâtis et l'intervention d'un manipulateur pour transporter les pièces à souder du premier bâti vers le deuxième bâti, avec un risque de perte de géométrie de l'assemblage. L'invention vise à pallier ces inconvénients. A cet effet, l'invention concerne une doublure intérieure pour une porte de véhicule automobile, comprenant deux enveloppes rigides entre lesquelles est disposé un renfort interne qui est fixé aux deux enveloppes .If this method avoids the use of the rotary frame of Figure 2, it requires the use of two frames and the intervention of a manipulator to transport the parts to be welded from the first frame to the second frame, with a risk of loss geometry of the assembly. The invention aims to overcome these disadvantages. To this end, the invention relates to an inner lining for a motor vehicle door, comprising two rigid envelopes between which is disposed an internal reinforcement which is fixed to the two envelopes.
Selon l'invention, le renfort comprend un creux s' étendant à partir d'une première enveloppe vers une seconde enveloppe et permettant à une source de chaleur de souder le renfort sur la seconde enveloppe, en agissant au travers d'un trou pratiqué dans la première enveloppe . Selon une autre caractéristique, le creux formé au sein du renfort comprend un fond défini par une partie du renfort ayant une épaisseur permettant le soudage du renfort sur la seconde enveloppe lorsque cette partie de renfort est irradiée par la source de chaleur.According to the invention, the reinforcement comprises a hollow extending from a first envelope to a second envelope and allowing a heat source to weld the reinforcement to the second envelope, by acting through a hole made in the first envelope. According to another feature, the hollow formed in the reinforcement comprises a bottom defined by a portion of the reinforcement having a thickness allowing the welding of the reinforcement on the second envelope when this reinforcing portion is irradiated by the heat source.
Selon encore une autre caractéristique, le renfort est un profilé creux comprenant une paroi centrale constituant la partie du renfort destinée à être soudée à la seconde enveloppe.According to yet another characteristic, the reinforcement is a hollow section comprising a central wall constituting the part of the reinforcement intended to be welded to the second envelope.
Avantageusement, le renfort comprend en outre deux parois latérales s' étendant de part et d'autre de la paroi centrale et dont les extrémités libres sont repliées vers la paroi centrale pour définir le creux de soudage de la source de chaleur.Advantageously, the reinforcement further comprises two side walls extending on either side of the central wall and whose free ends are folded towards the central wall to define the welding cavity of the heat source.
Dans ce cas, la fixation entre la première enveloppe et le renfort consiste en une soudure de cette première enveloppe sur une première des deux parois latérales du renfort.In this case, the attachment between the first envelope and the reinforcement consists of a weld of this first envelope on a first of the two side walls of the reinforcement.
Selon encore une autre caractéristique, la fixation entre la première enveloppe et le renfort consiste en une soudure additionnelle de cette première enveloppe sur la seconde des deux parois latérales du renfort. L'invention concerne également un procédé de soudage pour fixer un renfort interne à deux enveloppes rigides d'une doublure intérieure pour une porte d'un véhicule automobile entre lesquelles le renfort est disposé, une première des deux enveloppes comprenant un trou et le renfort interne étant pourvu d'un creux en communication avec le trou et s' étendant à partir d'une première enveloppe vers la seconde enveloppe et permettant à une source de chaleur de souder le renfort sur la seconde enveloppe, en agissant au travers du trou pratiqué dans la première enveloppe.According to yet another characteristic, the attachment between the first envelope and the reinforcement consists of an additional weld of this first envelope on the second of the two side walls of the reinforcement. The invention also relates to a welding method for fixing an internal reinforcement to two rigid envelopes of an inner lining for a door of a motor vehicle between which the reinforcement is arranged, a first of the two envelopes comprising a hole and the internal reinforcement being provided with a hollow in communication with the hole and extending from a first envelope to the second envelope and allowing a heat source to weld the reinforcement to the second envelope, acting through the hole in the first envelope.
Selon l'invention, ce procédé comprend au moins les étapes de :According to the invention, this method comprises at least the steps of:
- orientation de la source de chaleur à travers le trou de la première enveloppe vers le fond du creux du renfort,- orientation of the heat source through the hole of the first envelope to the bottom of the hollow of the reinforcement,
- actionnement de la source de chaleur pour obtenir le soudage du renfort sur la seconde enveloppe, - orientation de la source de chaleur sur un point de la première enveloppe adjacent au renfort,- actuation of the heat source to obtain the welding of the reinforcement on the second envelope, - orientation of the heat source on a point of the first envelope adjacent to the reinforcement,
- actionnement de la source de chaleur sur le point de la première enveloppe pour obtenir le soudage de la première enveloppe sur le renfort.- Actuation of the heat source on the point of the first envelope to obtain the welding of the first envelope on the reinforcement.
Selon une autre caractéristique, le procédé comprend les étapes supplémentaires de : orientation de la source de chaleur sur un deuxième point de la première enveloppe adjacent au renfort,According to another characteristic, the method comprises the additional steps of: orienting the heat source on a second point of the first envelope adjacent to the reinforcement,
- actionnement de la source de chaleur sur le deuxième point de la première enveloppe pour obtenir le soudage de la première enveloppe sur le renfort.- Actuation of the heat source on the second point of the first envelope to obtain the welding of the first envelope on the reinforcement.
De préférence, l' actionnement de la source de chaleur est effectué durant une durée prédéterminée.Preferably, the actuation of the heat source is carried out for a predetermined duration.
L'invention sera mieux comprise, et d'autres caractéristiques et avantages de celles-ci apparaîtront au cours de la description suivante faite en référence aux figures annexées parmi lesquelles : - la figure 1 précitée représente une vue en coupe verticale d'une porte latérale d'un véhicule automobile selon un plan transversal de ce véhicule, cette porte comprenant une doublure intérieure de type connu ;The invention will be better understood, and other features and advantages thereof will become apparent from the following description with reference to the appended figures among which: - Figure 1 above is a vertical sectional view of a side door of a motor vehicle according to a transverse plane of the vehicle, this door comprising an inner liner of known type;
- la figure 2 précitée illustre un procédé connu de soudage du renfort de la doublure de la figure 1 aux deux enveloppes l'entourant ;- Figure 2 above illustrates a known method of welding the reinforcement of the lining of Figure 1 to the two envelopes surrounding it;
- la figure 3 représente un deuxième procédé connu de soudage du renfort de la doublure de la figure 1 aux deux enveloppes l'entourant ; - la figure 4 est une vue analogue à la figure 1 avec une doublure intérieure selon l'invention, et illustrant la formation d'un premier point de soudage selon le procédé de l'invention ;FIG. 3 represents a second known method of welding the reinforcement of the lining of FIG. 1 to the two envelopes surrounding it; - Figure 4 is a view similar to Figure 1 with an inner liner according to the invention, and illustrating the formation of a first welding point according to the method of the invention;
- la figure 5 est une vue analogue à la figure 4 et illustrant la réalisation d'un deuxième point de soudure ; - la figure 6 est une vue analogue à la figure 5 représentant l'application d'un troisième point de soudure .- Figure 5 is a view similar to Figure 4 and illustrating the realization of a second weld spot; - Figure 6 is a view similar to Figure 5 showing the application of a third weld.
Sur la figure 4 sont représentés une doublure intérieure pour une porte d'un véhicule automobile selon l'invention, et un panneau extérieur 2 de la porte, entre lesquels une vitre 3 du véhicule peut coulisser.In Figure 4 are shown an inner lining for a door of a motor vehicle according to the invention, and an outer panel 2 of the door, between which a window 3 of the vehicle can slide.
Cette doublure 21 est formée par l'assemblage de différentes pièces rigides et constitue un moyen de protection de l'occupant du véhicule assis sur le siège adjacent à cette porte en cas de choc latéral.This lining 21 is formed by the assembly of different rigid parts and is a means of protecting the occupant of the vehicle sitting on the seat adjacent to this door in case of side impact.
A cet effet, la doublure 21 comprend deux enveloppes 22, 23 et un renfort 24 interposé entre celles-ci . Plus précisément, l'une des deux enveloppes est destinée à constituer une enveloppe externe 22 accessible depuis l'habitacle du véhicule, la deuxième enveloppe 23 constituant une enveloppe interne interposée entre l'enveloppe externe et la vitre 3, et qui est donc invisible depuis l'intérieur de l'habitacle du véhicule.For this purpose, the lining 21 comprises two envelopes 22, 23 and a reinforcement 24 interposed therebetween. More specifically, one of the two envelopes is intended to constitute an outer envelope 22 accessible from the passenger compartment of the vehicle, the second envelope 23 constituting an inner envelope interposed between the outer envelope and the window 3, and which is therefore invisible since inside the passenger compartment of the vehicle.
La première enveloppe comprend un bord supérieur 26 longeant horizontalement la vitre 3, trois panneaux sous- jacents 27 à 29 définissant en section transversale une forme générale de C et un panneau inférieur 30 s' étendant sensiblement verticalement jusqu'au bord inférieur de la porte .The first envelope comprises an upper edge 26 horizontally skirting the window 3, three underlying panels 27 to 29 defining in cross section a general shape of C and a lower panel 30 extending substantially vertically to the lower edge of the door.
L'enveloppe interne 23 comprend également un bord supérieur 32 solidarisé par exemple par des points de soudure électriques le long du bord supérieur 26 de l'enveloppe externe 22 et un panneau 33 prolongeant le bord 32 vers le bas de la porte et s' arrêtant sensiblement aux deux tiers du panneau central 28 de l'enveloppe externe 22.The inner casing 23 also comprises an upper edge 32 secured for example by electric soldering points along the upper edge 26 of the outer casing 22 and a panel 33 extending the edge 32 towards the bottom of the door and stopping substantially two-thirds of the central panel 28 of the outer shell 22.
Les deux enveloppes 23, 23 définissent ensemble une cavité ouverte 34 destinées à recevoir le renfort 24.The two envelopes 23, 23 together define an open cavity 34 intended to receive the reinforcement 24.
Les deux bords supérieurs 26, 32 des deux enveloppes 22, 23 sont destinées à servir de support à un lécheur d'étanchéité qui sera emmanché sur ces deux bords .The two upper edges 26, 32 of the two envelopes 22, 23 are intended to serve as a support for a sealing liner which will be fitted on these two edges.
Le panneau inférieur 33 de l'enveloppe interne 23 comprend un trou 35 destiné à servir d'accès au faisceau d'une source de chaleur destinée à solidariser le renfort 24 à l'enveloppe externe 22.The lower panel 33 of the inner casing 23 comprises a hole 35 intended to serve as access to the beam of a heat source for securing the reinforcement 24 to the outer casing 22.
Le renfort 24 présente une forme générale de profilé creux comprenant une paroi centrale 36 destinée à longer le panneau central 28 de l'enveloppe externe 22 et deux parois latérales 37, 38 s' étendant de part et d'autre de cette paroi centrale 36.The reinforcement 24 has a generally hollow profile shape comprising a central wall 36 intended to follow the central panel 28 of the outer casing 22 and two side walls 37, 38 extending on either side of this central wall 36.
Chaque paroi latérale 37, 38 est repliée vers la paroi centrale 36 sans toutefois se joindre l'une l'autre, définissant un creux 40 communiquant avec le trou 35 de l'enveloppe interne 23 et débouchant sur la paroi centrale 36 de ce renfort 24.Each side wall 37, 38 is folded towards the central wall 36 without however joining each other, defining a recess 40 communicating with the hole 35 of the inner casing 23 and opening on the central wall 36 of this reinforcement 24 .
Plus précisément, chaque paroi latérale comprend une portion 42 sensiblement perpendiculaire à la paroi centrale 36, prolongée par une deuxième portion 43 elle- même sensiblement perpendiculaire à la portion 42 et enfin une portion oblique 44 s' étendant depuis la portion 43 et dirigée vers la paroi centrale 36 du renfort.More specifically, each side wall comprises a portion 42 substantially perpendicular to the central wall 36, extended by a second portion 43 itself substantially perpendicular to the portion 42 and finally an oblique portion 44 extending from the portion 43 and directed towards the central wall 36 of the reinforcement.
Les deux portions obliques 44 des parois latérales définissent pour le creux 40 une forme générale en entonnoir convergeant vers la paroi centrale 36.The two oblique portions 44 of the side walls define for the recess 40 a general funnel shape converging towards the central wall 36.
Comme visible sur cette même figure 4, le panneau 33 de l'ensemble interne 23 recouvre dans sa totalité la portion 43 de la paroi latérale supérieure 38 du renfort et seulement la moitié de la portion 43 de l'autre paroi latérale 37 du renfort 24. Par ailleurs, le trou 35 du panneau 33 de l'enveloppe interne 23 est situé sensiblement à mi-distance des deux portions obliques 44 de parois latérales 37, 38.As visible in this same FIG. 4, the panel 33 of the inner assembly 23 completely covers the portion 43 of the upper side wall 38 of the reinforcement and only half of the portion 43 of the other side wall 37 of the reinforcement 24. On the other hand, the hole 35 of the panel 33 of the inner envelope 23 is located substantially midway between the two oblique portions 44 of side walls 37, 38.
Le trou 35 pratiqué dans l'enveloppe interne 23 peut consister en une lumière s' étendant sensiblement horizontalement le long du panneau 33 de l'enveloppe interne 33 ou en une multitude de trous s' étendant selon la même direction.The hole 35 made in the inner envelope 23 may consist of a light extending substantially horizontally along the panel 33 of the envelope internal 33 or in a multitude of holes extending in the same direction.
Selon l'invention, le creux 40 du renfort 24 et le trou 35 de l'enveloppe interne 23 permettent à une source de chaleur de souder le renfort 24 sur l'enveloppe externe 22 depuis le même côté que pour le soudage de ce renfort 24 à l'enveloppe interne 23.According to the invention, the hollow 40 of the reinforcement 24 and the hole 35 of the inner casing 23 allow a heat source to weld the reinforcement 24 on the outer casing 22 from the same side as for the welding of this reinforcement 24 to the inner envelope 23.
Plus précisément, tel qu'illustré toujours sur la figure 4, lorsqu'un faisceau laser 46 émis par une source de chaleur est orienté à travers le trou 35 de l'enveloppe interne 23, depuis le côté de l'enveloppe interne 33, un point de soudure 47 est formé entre la paroi centrale 36 du renfort 24 et le panneau sous-jacent 47 de l'enveloppe externe 22. Le faisceau laser 46 orienté toujours suivant le même sens et sans aucun retournement de l'ensemble formé par les deux enveloppes 22, 23 et le renfort 24, permet ensuite la réalisation d'un deuxième point de soudure 48 mis en évidence sur la figure 5, entre l'enveloppe interne 23 et le renfort 24.More specifically, as always illustrated in FIG. 4, when a laser beam 46 emitted by a heat source is directed through the hole 35 of the inner casing 23, from the side of the inner casing 33, a welding point 47 is formed between the central wall 36 of the reinforcement 24 and the underlying panel 47 of the outer casing 22. The laser beam 46 always oriented in the same direction and without any reversal of the assembly formed by the two envelopes 22, 23 and the reinforcement 24, then allows the realization of a second weld point 48 highlighted in FIG. 5, between the inner envelope 23 and the reinforcement 24.
Dans ce cas, le faisceau est orienté sur un point du panneau 33 de l'enveloppe interne 23 longeant la portion 43 du renfort interne 24.In this case, the beam is oriented on a point of the panel 33 of the inner envelope 23 along the portion 43 of the internal reinforcement 24.
De même, comme visible sur la figure 6, un troisième point de soudure 49 est avantageusement réalisé encore suivant le même sens du faisceau et toujours sans aucun retournement des pièces 23, 23, 24 entre un deuxième point du panneau 33 longeant la portion 43 de l'autre paroi latérale 38 du renfort interne 24 et le renfort interne 24. Le troisième point 49 est ainsi situé de l'autre côté du trou 35 relativement au deuxième point de soudure 48.Likewise, as can be seen in FIG. 6, a third weld point 49 is advantageously made again along the same direction of the beam and still without any turning of the pieces 23, 23, 24 between a second point of the panel 33 along the portion 43 of the the other side wall 38 of the internal reinforcement 24 and the internal reinforcement 24. The third point 49 is thus situated on the other side of the hole 35 relative to the second weld point 48.
Du fait que le panneau 33 de l'enveloppe 23 recouvre totalement la portion 43 du renfort, et que de même, la paroi centrale 36 du renfort 24 recouvre totalement le panneau central 28 de l'enveloppe externe 22, il est préférable d'utiliser un faisceau laser pour soudure par transparence pour les points de soudure 49 et 47 qui solidarisent respectivement le panneau 33 à ladite portion 43 et la paroi centrale 36 du renfort 24 au panneau central 28 de l'enveloppe externe. Par contre, du fait que le panneau 33 s'arrête sensiblement à mi-longueur de la portion correspondante 43 de la paroi latérale inférieure 37 du renfort interne 24, il est possible d'utiliser comme moyen de soudage de ce panneau 33 à la portion 43 de cette paroi latérale inférieure 37 un faisceau laser pour soudure par transparence ou bien un faisceau laser pour soudure à clin .Because the panel 33 of the casing 23 completely covers the portion 43 of the reinforcement, and likewise, the central wall 36 of the reinforcement 24 completely covers the central panel 28 of the outer casing 22, it is preferable to use a laser beam for solder by transparency for the solder points 49 and 47 which respectively join the panel 33 to said portion 43 and the central wall 36 of the reinforcement 24 to the central panel 28 of the outer casing. On the other hand, because the panel 33 stops substantially at the mid-length of the corresponding portion 43 of the lower side wall 37 of the internal reinforcement 24, it is possible to use as a welding means of this panel 33 to the portion 43 of this lower side wall 37 a laser beam for welding by transparency or a laser beam for welding clapboard.
La conception de la doublure interne pour porte de véhicule ci-dessus décrite et son procédé de fabrication permettent d'apporter différents avantages :The design of the internal lining for a vehicle door described above and its manufacturing method make it possible to provide various advantages:
- on évite grâce à la forme particulière du renfort interne, tout retournement de l'ensemble des pièces (les deux enveloppes et le renfort) pour souder toutefois les deux côtés opposés de ce renfort aux enveloppes correspondantes,thanks to the particular shape of the internal reinforcement, the whole of the parts (the two envelopes and the reinforcement) are not reversed, however, to weld the two opposite sides of this reinforcement to the corresponding envelopes,
- la diminution de l'investissement en outillages nécessaires à la soudure étant donné l'utilisation d'un seul bâti et non plus deux bâtis ou encore un bâti sophistiqué avec cadre rotatif. L'amélioration de la qualité géométrique de la doublure ainsi obtenue puisque les pièces constitutives de cette doublure ne sont jamais déplacées ni retournées durant leur solidarisation deux à deux, un gain de temps de fait de la possibilité d'effectuer successivement les deux ou trois soudures par le faisceau laser sans interruption relative au retournement de la pièce, la libération du manipulateur autrefois nécessaire pour retourner les pièces à souder. - the reduction in the investment in tools required for welding, given the use of a single frame and no longer two frames or a sophisticated frame with rotating frame. The improvement in the geometric quality of the lining thus obtained since the constituent parts of this liner are never moved or returned during their joining two by two, a time saving fact of the ability to perform successively the two or three welds by the laser beam without interruption relative to the turning of the workpiece, the release of the manipulator formerly necessary to turn the parts to be welded.

Claims

REVENDICATIONS
1. Doublure intérieure pour une porte d'un véhicule automobile, comprenant deux enveloppes rigides (22, 23) entre lesquelles est disposé un renfort interne (24) qui est fixé aux deux enveloppes (22, 23), caractérisé en ce que le renfort (24) comprend un creux (40) s' étendant à partir d'une première enveloppe (23, 22) vers la seconde enveloppe (22, 23) et permettant à une source de chaleur de souder le renfort (24) sur la seconde enveloppe (22, 23), en agissant au travers d'un trou (35) pratiqué dans la première enveloppe (23, 22) .1. Inner lining for a door of a motor vehicle, comprising two rigid shells (22, 23) between which is disposed an internal reinforcement (24) which is fixed to the two shells (22, 23), characterized in that the reinforcement (24) comprises a recess (40) extending from a first shell (23, 22) to the second shell (22, 23) and allowing a heat source to weld the reinforcement (24) to the second casing (22, 23), acting through a hole (35) in the first casing (23, 22).
2. Doublure selon la revendication 1, caractérisée en ce que le creux (40) formé au sein du renfort (24) comprend un fond défini par une partie du renfort (36) ayant une épaisseur permettant le soudage du renfort (24) sur la seconde enveloppe (22, 23) lorsque cette partie de renfort (36) est irradiée par la source de chaleur. 2. Lining according to claim 1, characterized in that the hollow (40) formed in the reinforcement (24) comprises a bottom defined by a portion of the reinforcement (36) having a thickness for welding the reinforcement (24) on the second envelope (22, 23) when this reinforcing portion (36) is irradiated by the heat source.
3. Doublure selon la revendication 2, caractérisée en ce que le renfort (24) est un profilé creux comprenant une paroi centrale (36) constituant la partie du renfort destinée à être soudée à la seconde enveloppe (22, 23) .3. Lining according to claim 2, characterized in that the reinforcement (24) is a hollow section comprising a central wall (36) constituting the portion of the reinforcement intended to be welded to the second casing (22, 23).
4. Doublure selon la revendication 3, caractérisée en ce que le renfort (24) comprend en outre deux parois latérales (37, 38) s' étendant de part et d'autre de la paroi centrale (36) et dont les extrémités libres sont repliées vers la paroi centrale (36) pour définir le creux de soudage (40) pour la source de chaleur. 4. Lining according to claim 3, characterized in that the reinforcement (24) further comprises two side walls (37, 38) extending on either side of the central wall (36) and whose free ends are folded toward the central wall (36) to define the welding trough (40) for the heat source.
5. Doublure selon la revendication 4, caractérisée en ce que la fixation entre la première enveloppe (23, 22) et le renfort (24) consiste en une soudure de cette première enveloppe (23, 22) sur une première (37, 38) des deux parois latérales (37, 38) du renfort (24). 5. Lining according to claim 4, characterized in that the attachment between the first casing (23, 22) and the reinforcement (24) consists of a weld of this first casing (23, 22) on a first (37, 38) two side walls (37, 38) of the reinforcement (24).
6. Doublure selon la revendication 5, caractérisée en ce que la fixation entre la première enveloppe (23, 22) et le renfort (24) consiste en une soudure additionnelle de cette première enveloppe (23, 22) sur la seconde (38, 37) des deux parois latérales (37, 38) du renfort (24) .6. Lining according to claim 5, characterized in that the fixing between the first casing (23, 22) and the reinforcement (24) consists of a weld additional this first envelope (23, 22) on the second (38, 37) of the two side walls (37, 38) of the reinforcement (24).
7. Procédé de soudage pour fixer un renfort interne à deux enveloppes rigides (22, 23) d'une doublure intérieure (1) pour une porte d'un véhicule automobile, entre lesquelles le renfort (24) est disposé, une première (23, 22) des deux enveloppes (22, 23) comprenant un trou (35) et le renfort interne (24) étant pourvu d'un creux (40) en communication avec le trou (35) et s' étendant à partir d'une première enveloppe (23, 22) vers la seconde enveloppe (22, 23) et permettant à une source de chaleur de souder le renfort (24) sur la seconde enveloppe (22, 23), en agissant au travers du trou (35) pratiqué dans la première enveloppe (23, 22), comprenant au moins les étapes de :7. A welding method for fixing an internal reinforcement to two rigid envelopes (22, 23) of an inner lining (1) for a door of a motor vehicle, between which the reinforcement (24) is arranged, a first (23) 22) of the two envelopes (22, 23) comprising a hole (35) and the internal reinforcement (24) being provided with a recess (40) in communication with the hole (35) and extending from a first envelope (23, 22) towards the second envelope (22, 23) and allowing a heat source to weld the reinforcement (24) on the second envelope (22, 23), by acting through the hole (35) practiced in the first envelope (23, 22), comprising at least the steps of:
- orientation de la source de chaleur à travers le trou (35) de la première enveloppe (23, 22) vers le fond- Orientation of the heat source through the hole (35) of the first envelope (23, 22) towards the bottom
(36) du creux (40) du renfort (24), - actionnement de la source de chaleur pour obtenir le soudage du renfort (24) sur la seconde enveloppe (22, 23),(36) of the recess (40) of the reinforcement (24), - actuation of the heat source to obtain the welding of the reinforcement (24) on the second envelope (22, 23),
- orientation de la source de chaleur sur un point de la première enveloppe (23, 22) adjacent au renfort (24),- Orientation of the heat source on a point of the first envelope (23, 22) adjacent to the reinforcement (24),
- actionnement de la source de chaleur sur le point de la première enveloppe pour obtenir le soudage de la première enveloppe (23, 22) sur le renfort (24) .- Actuation of the heat source on the point of the first envelope to obtain the welding of the first envelope (23, 22) on the reinforcement (24).
8. Procédé selon la revendication 7, comprenant les étapes supplémentaires de :The method of claim 7 including the further steps of:
- orientation de la source de chaleur sur un deuxième point (49) de la première enveloppe (23, 22) adjacent au renfort (24), actionnement de la source de chaleur sur le deuxième point (49) de la première enveloppe (23, 22) pour obtenir le soudage de la première enveloppe (23, 22) sur le renfort (24) . - orientation of the heat source on a second point (49) of the first envelope (23, 22) adjacent to the reinforcement (24), actuation of the heat source on the second point (49) of the first envelope (23, 22) to obtain the welding of the first envelope (23, 22) on the reinforcement (24).
9. Procédé selon la revendication 7 ou 8, dans lequel l' actionnement de la source de chaleur est effectué durant une durée prédéterminée. 9. The method of claim 7 or 8, wherein the actuation of the heat source is performed for a predetermined time.
EP08806036A 2007-06-29 2008-06-19 Internal lining for an automobile vehicle door comprising a reinforcement welded between two casings, without reversal Withdrawn EP2162307A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0756195A FR2918001B1 (en) 2007-06-29 2007-06-29 INTERIOR LINING FOR A DOOR OF A MOTOR VEHICLE COMPRISING A SOLDERED REINFORCEMENT BETWEEN TWO ENVELOPES, WITHOUT RETURNING
PCT/FR2008/051102 WO2009004256A1 (en) 2007-06-29 2008-06-19 Internal lining for an automobile vehicle door comprising a reinforcement welded between two casings, without reversal

Publications (1)

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EP2162307A1 true EP2162307A1 (en) 2010-03-17

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EP08806036A Withdrawn EP2162307A1 (en) 2007-06-29 2008-06-19 Internal lining for an automobile vehicle door comprising a reinforcement welded between two casings, without reversal

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EP (1) EP2162307A1 (en)
FR (1) FR2918001B1 (en)
WO (1) WO2009004256A1 (en)

Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
DE102019131968A1 (en) * 2019-11-26 2021-05-27 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Motor vehicle door

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
US5171058A (en) * 1989-06-30 1992-12-15 Mazda Motor Corporation Collision energy absorbing structure for a vehicle side body
JPH07101241A (en) * 1993-10-06 1995-04-18 Toyota Motor Corp Shock absorbing structure of door
JP2990057B2 (en) * 1996-03-13 1999-12-13 アイシン軽金属株式会社 Energy absorption structure on the side of the vehicle
DE59710709D1 (en) * 1996-05-06 2003-10-16 Volkswagen Ag Motor vehicle door with side impact protection
DE19852976B4 (en) * 1998-11-17 2005-06-23 Benteler Ag Door frame for a passenger car

Non-Patent Citations (1)

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Title
See references of WO2009004256A1 *

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WO2009004256A1 (en) 2009-01-08
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