WO2007088303A1 - Motor vehicle seat part cross member - Google Patents
Motor vehicle seat part cross member Download PDFInfo
- Publication number
- WO2007088303A1 WO2007088303A1 PCT/FR2007/050706 FR2007050706W WO2007088303A1 WO 2007088303 A1 WO2007088303 A1 WO 2007088303A1 FR 2007050706 W FR2007050706 W FR 2007050706W WO 2007088303 A1 WO2007088303 A1 WO 2007088303A1
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- WO
- WIPO (PCT)
- Prior art keywords
- cross member
- seat cross
- vehicle
- tube
- fixed
- 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.)
- Ceased
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/20—Floors or bottom sub-units
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/005—Arrangement or mounting of seats in vehicles, e.g. dismountable auxiliary seats
- B60N2/015—Attaching seats directly to vehicle chassis
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/157—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body for side impacts
Definitions
- the present invention relates to a cross member of a motor vehicle comprising a beam fixed between two longitudinal members of the vehicle or between a longitudinal member of the vehicle and a transmission tunnel.
- the front seat cross member of the vehicle is understood to be a seat cross member which extends between the two front longitudinal members of the vehicle and supports the seats of the driver and the driver. front passenger.
- the front seat cross member is understood to mean either of the driver's or the front passenger's seat rails, which each extend between a spar front of the vehicle and the transmission tunnel.
- the subject of the invention is a crossmember of a motor vehicle comprising a beam fixed between two longitudinal members of the vehicle or between a longitudinal member of the vehicle and a transmission tunnel, characterized in that it comprises reinforcing members fixed to the beam and able to transmit to the vehicle underbody a force applied to a lateral end of the beam.
- the reinforcing members are of elongate shape and extend substantially parallel to a longitudinal axis of the beam;
- the reinforcing members are fixed to the beam by means of weld seams or welds;
- the reinforcing members comprise at least one bent member for reinforcing a bent portion of the beam
- the reinforcing members comprise at least one tube fixed to the beam near its lateral ends and extending substantially parallel to a longitudinal axis of the beam;
- the tube is fixed below the beam and connected to the beam by means of interface plates;
- the tube is fixed to the interface plates by means of weld seams;
- the interface plates comprise openings for communicating the inside of the tube with the outside;
- the tube is fixed above the beam, the tube and the beam being connected by at least one force transmission member between the tube and the beam;
- the reinforcing members comprise at least one elongate section fixed to the beam near its lateral ends and extending substantially parallel to a longitudinal axis of the beam.
- FIG. 1 is a partial perspective view and from the rear of a motor vehicle structure comprising a seat cross member according to a first embodiment of the invention
- FIG. 1 is an exploded perspective view at another angle of the cross bed of Figure 1;
- FIG. 3 is a partial section along the plane III of Figure 2, the elements being assembled;
- FIG. 4 is an exploded perspective view similar to FIG. 2 of a seat cross member according to a second embodiment of the invention.
- FIG. 5 is an exploded perspective view similar to Figure 2, but at another angle, a seat cross member according to a third embodiment of the invention.
- the motor vehicle V represented diagrammatically in FIG. 1, comprises a structure including in particular a driver's cross member 1 fixed by appropriate means, not shown in the figures, on a front spar 5 of the vehicle V and a transmission tunnel. 7.
- the seat cross member 1 is located substantially in line with a central door foot 9.
- the seat cross member 1 comprises a metal beam 11 U-section open downwardly, the lateral ends HA and HB are respectively connected to the spar 5 and the tunnel 7, for example by welding.
- the beam 11 has two elbows 112 and 114, located in the vicinity of the lateral ends HA and HB.
- the bends 112 and 114 define between them a central portion 110 of the beam 11, substantially flat and adapted to receive and support the lower portion of a driver seat, not shown in the figures.
- the seat cross member 1 also comprises a bent metal tip 13 of reinforcement disposed under the upper portion HC of the beam 11 at the elbow 112 closest to the door foot 9.
- the tip 13 stiffens the elbow 112
- Two metal tubes 15 are arranged under the upper part HC and under the end piece 13, substantially parallel to the longitudinal axis Xn of the beam 11. These tubes 15 extend between the two elbows 112 and 114 of the beam 11.
- the end piece 13 and the tubes 15 are connected to the beam 11.
- the end piece 13 is fixed by means of electric soldering points to the upper part HC of the beam 11, whereas the tubes 15 are connected to the beam 11, at their respective ends, by means of two interface plates 17.
- the tubes 15 are fixed on the interface plates 17 by means of weld beads 18, the interface plates 17 being themselves welded to the Beam 11 by means of electric welding spots 16.
- the interface plates 17 may be connected to the beam 11 by means of weld seams.
- the interface plates 17 comprise openings 171 for placing the tubes inside together. with the outside.
- the openings 171 allow the cataphoresis treatment of the inside of the tubes 15 during the passage of the vehicle V body in a cataphoresis bath, during its manufacturing process.
- the seat cross member 1 according to the invention is stiffened by the end piece 13 and the tubes 15. Thanks to these reinforcing members, the flexion of the beam 11 is limited in the event of a lateral impact on the vehicle V on the side of the 9.
- the seat cross member 1 of the invention therefore constitutes an effective way of transferring the forces resulting from the lateral impact to the entire underbody of the vehicle V.
- the crossbeam 1 limits the risk of injury to the driver that could result from deformation of the crossbelt and the seat it supports.
- a seat cross member 1 as described above thus makes it possible to obtain an increased holding of the vehicle V underbody during a side impact, compared with a conventional unrestrained seat cross member.
- the cost and mass of a seat cross member according to the invention are not very different from those of a non-reinforced seat cross.
- the crossbeam as described can also extend between the two side rails of the vehicle.
- two angled reinforcing tips are advantageously provided, so as to stiffen the two elbows of the beam, which are each located at a door foot.
- the seat cross member 2 comprises a beam 21, similar to the beam 11 of the first embodiment.
- the lateral ends 2IA and 21B of the beam 21 are intended to be fixed respectively to a spar 5 and to the central tunnel 7 of a motor vehicle V, by appropriate means not shown.
- the seat cross member 2 comprises a bent metal tip 23 of reinforcement, disposed under the upper part 21C of the beam 21, so as to stiffen the bend 212 of the beam 21 located near the central door foot 9.
- Two metal profiles 25 and 27, flat and elongated, are superimposed and fixed under the upper portion 21C of the beam 21 and under the nozzle 23, substantially parallel to the longitudinal axis X 2 1 of the beam.
- the profile 25 extends substantially over the entire length of the beam 21, while the section 27 extends substantially below the bend 212 of the beam 21.
- the end piece 23 and the sections 25 and 27 are welded together. to the others and to the beam 21 by means of electric welding points.
- the reinforcement members 23, 25 and 27 make it possible to stiffen the beam 21 of the seat cross member 2 and thus to limit its flexion in the event of a lateral impact on the vehicle V, for a cost and a added limited mass.
- the conductor cross-member 3 comprises a beam 31, similar to the beam 11 of the first embodiment, whose lateral ends 31A and 31B are intended to be fixed respectively to a spar 5 and the central tunnel 7 of a motor vehicle V, by means of appropriate means not shown.
- the seat cross member 3 also comprises a bent metal tip 33 for reinforcing, arranged under the upper part 31C of the beam 31 and able to stiffen the bend 312 of the beam 31 closest to the central door foot 9.
- the seat cross member 3 further comprises a tube 35 disposed above the upper portion 31C of the beam 31, substantially parallel to the longitudinal axis X 3i of the beam.
- a flange 37 connects the tube 35 to the lower part 31D of the beam 31 to prevent buckling of the tube 35.
- a pin 39 integral with a support 38, is provided to be introduced simultaneously into three superposed housings formed respectively in the endpiece 33, in the beam 31 and in the tube 35.
- the pin 39 allows the centering of the tube 35 relative to the beam 31 and ensures the transfer of the forces of the beam 31 to the tube 35.
- the tip 33, the tube 35 and the support 38 are welded to each other and to the beam 31 by means of electric soldering points.
- the reinforcing members 33 and 35 make it possible, as in the previous embodiments, to limit the flexion of the beam 31 of the seat cross member 3 in the event of a lateral impact on the vehicle V.
- the forces resulting from the impact can be transmitted to the entire underbody of the vehicle V and the risk of injury to the driver of the vehicle is reduced.
- the cross-member of a motor vehicle seat according to the invention has been described for a driver's seat crossmember.
- the seat cross member according to the invention can be implemented for the driver's seat cross member, the front passenger seat cross member and the rear seat cross member for a vehicle with a transmission tunnel, or for the front seat cross member and the rear seat cross member for a vehicle without a transmission tunnel.
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- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Aviation & Aerospace Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
Description
TRAVERSE D' ASSISE DE VEHICULE AUTOMOBILE MOTOR VEHICLE SEAT TRAVERSE
La présente invention a trait à une traverse d'assise de véhicule automobile comportant une poutre fixée entre deux longerons du véhicule ou entre un longeron du véhicule et un tunnel de transmission.The present invention relates to a cross member of a motor vehicle comprising a beam fixed between two longitudinal members of the vehicle or between a longitudinal member of the vehicle and a transmission tunnel.
Il est connu d' avoir une structure de véhicule comprenant au moins une traverse d'assise, disposée au voisinage du plancher du véhicule et permettant le montage des sièges. Une telle traverse d'assise est située à l'aplomb d'un montant de la structure du véhicule qui correspond, pour la traverse d'assise avant du véhicule, à un pied de porte central. Dans le cas d'un véhicule n'ayant pas de tunnel de transmission, on entend par traverse d'assise avant du véhicule une traverse d'assise qui s'étend entre les deux longerons avant du véhicule et supporte les sièges du conducteur et du passager avant. Dans le cas d'un véhicule pourvu d'un tunnel de transmission, on entend par traverse d'assise avant l'une ou l'autre des traverses d'assise du conducteur ou du passager avant, qui s'étendent chacune entre un longeron avant du véhicule et le tunnel de transmission.It is known to have a vehicle structure comprising at least one crossbase, arranged in the vicinity of the floor of the vehicle and for mounting the seats. Such a crossbase is located directly above a vehicle structure of the amount corresponding to the cross of the front seat of the vehicle, a central door foot. In the case of a vehicle without a transmission tunnel, the front seat cross member of the vehicle is understood to be a seat cross member which extends between the two front longitudinal members of the vehicle and supports the seats of the driver and the driver. front passenger. In the case of a vehicle provided with a transmission tunnel, the front seat cross member is understood to mean either of the driver's or the front passenger's seat rails, which each extend between a spar front of the vehicle and the transmission tunnel.
En cas de choc latéral sur le véhicule, une partie des efforts résultant du choc transite par le soubassement du véhicule. Une voie d'effort se situe notamment dans la traverse d'assise avant du véhicule. Or, cette traverse d'assise est soumise non seulement à des efforts latéraux résultant du choc, mais également au chargement du pied de porte central qui tendent chacun à entraîner une flexion de la traverse d'assise avant. Une telle flexion compromet le transfert des efforts dans le soubassement du véhicule et ne permet pas de respecter les critères biomécaniques des passagers du véhicule. C'est à ces inconvénients qu'entend plus particulièrement remédier l'invention en proposant une traverse d'assise de véhicule automobile qui permet à la fois, en cas de choc latéral, de transmettre efficacement les efforts résultant du choc à l'ensemble du soubassement du véhicule et de protéger les passagers du véhicule.In the event of a side impact on the vehicle, part of the forces resulting from the shock passes through the underbody of the vehicle. A stress path is located in particular in the front seat cross member of the vehicle. However, this cross-member is subjected not only to lateral forces resulting from the impact, but also to the loading of the central door foot, which tend to cause a flexion of the front seat cross. Such bending compromises the transfer of forces in the underbody of the vehicle and does not meet the biomechanical criteria of the vehicle passengers. It is these drawbacks that the invention intends to remedy more particularly by proposing a seat cross member of a motor vehicle which makes it possible, in the event of a side impact, to efficiently transmit the forces resulting from the impact to the whole of the vehicle. underbody of the vehicle and to protect the passengers of the vehicle.
A cet effet, l'invention a pour objet une traverse d'assise de véhicule automobile comportant une poutre fixée entre deux longerons du véhicule ou entre un longeron du véhicule et un tunnel de transmission, caractérisée en ce qu'elle comporte des organes de renfort fixés à la poutre et aptes à transmettre au soubassement du véhicule un effort appliqué sur une extrémité latérale de la poutre.For this purpose, the subject of the invention is a crossmember of a motor vehicle comprising a beam fixed between two longitudinal members of the vehicle or between a longitudinal member of the vehicle and a transmission tunnel, characterized in that it comprises reinforcing members fixed to the beam and able to transmit to the vehicle underbody a force applied to a lateral end of the beam.
Selon d' autres caractéristiques avantageuses de 1' invention :According to other advantageous features of the invention:
- les organes de renfort sont de forme allongée et s'étendent sensiblement parallèlement à un axe longitudinal de la poutre ;- The reinforcing members are of elongate shape and extend substantially parallel to a longitudinal axis of the beam;
- les organes de renfort sont fixés à la poutre au moyen de cordons de soudure ou de points de soudure ;- The reinforcing members are fixed to the beam by means of weld seams or welds;
- les organes de renfort comprennent au moins un organe coudé de renfort d'une portion coudée de la poutre ;- The reinforcing members comprise at least one bent member for reinforcing a bent portion of the beam;
- les organes de renfort comprennent au moins un tube fixé à la poutre au voisinage de ses extrémités latérales et s' étendant sensiblement parallèlement à un axe longitudinal de la poutre ;- The reinforcing members comprise at least one tube fixed to the beam near its lateral ends and extending substantially parallel to a longitudinal axis of the beam;
- le tube est fixé en dessous de la poutre et relié à la poutre au moyen de plaques d' interface ;- the tube is fixed below the beam and connected to the beam by means of interface plates;
- le tube est fixé aux plaques d' interface au moyen de cordons de soudure ;the tube is fixed to the interface plates by means of weld seams;
- les plaques d' interface comprennent des ouvertures de mise en communication de l'intérieur du tube avec l'extérieur ; - le tube est fixé au-dessus de la poutre, le tube et la poutre étant reliés par au moins un organe de transmission d'efforts entre le tube et la poutre ;- The interface plates comprise openings for communicating the inside of the tube with the outside; - The tube is fixed above the beam, the tube and the beam being connected by at least one force transmission member between the tube and the beam;
- les organes de renfort comprennent au moins un profilé allongé fixé à la poutre au voisinage de ses extrémités latérales et s' étendant sensiblement parallèlement à un axe longitudinal de la poutre.- The reinforcing members comprise at least one elongate section fixed to the beam near its lateral ends and extending substantially parallel to a longitudinal axis of the beam.
Les caractéristiques et avantages de l'invention apparaîtront dans la description qui va suivre de plusieurs modes de réalisation d'une traverse d'assise de véhicule automobile selon l'invention, donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés dans lesquels :The features and advantages of the invention will appear in the following description of several embodiments of a motor vehicle seat cross member according to the invention, given solely by way of example and with reference to the accompanying drawings. wherein :
- la figure 1 est une vue partielle en perspective et par l'arrière d'une structure de véhicule automobile comprenant une traverse d'assise conforme à un premier mode de réalisation de l'invention ;- Figure 1 is a partial perspective view and from the rear of a motor vehicle structure comprising a seat cross member according to a first embodiment of the invention;
- la figure 2 est une vue en perspective éclatée selon un autre angle de la traverse d'assise de la figure 1 ;- Figure 2 is an exploded perspective view at another angle of the cross bed of Figure 1;
- la figure 3 est une coupe partielle selon le plan III de la figure 2, les éléments étant assemblés ;- Figure 3 is a partial section along the plane III of Figure 2, the elements being assembled;
- la figure 4 est une vue en perspective éclatée analogue à la figure 2 d'une traverse d'assise conforme à un deuxième mode de réalisation de l'invention ;FIG. 4 is an exploded perspective view similar to FIG. 2 of a seat cross member according to a second embodiment of the invention;
- la figure 5 est une vue en perspective éclatée analogue à la figure 2, mais selon un autre angle, d'une traverse d'assise conforme à un troisième mode de réalisation de l'invention.- Figure 5 is an exploded perspective view similar to Figure 2, but at another angle, a seat cross member according to a third embodiment of the invention.
Le véhicule automobile V, représenté schématiquement à la figure 1, comprend une structure comportant notamment une traverse d'assise 1 de conducteur fixée par des moyens appropriés, non représentés sur les figures, sur un longeron avant 5 du véhicule V et un tunnel de transmission 7. La traverse d'assise 1 est située sensiblement à l'aplomb d'un pied de porte central 9.The motor vehicle V, represented diagrammatically in FIG. 1, comprises a structure including in particular a driver's cross member 1 fixed by appropriate means, not shown in the figures, on a front spar 5 of the vehicle V and a transmission tunnel. 7. The seat cross member 1 is located substantially in line with a central door foot 9.
La traverse d'assise 1 comporte une poutre métallique 11 à section en U ouverte vers le bas, dont les extrémités latérales HA et HB sont reliées respectivement au longeron 5 et au tunnel 7, par exemple par soudage. La poutre 11 comporte deux coudes 112 et 114, situés au voisinage des extrémités latérales HA et HB. Les coudes 112 et 114 définissent entre eux une portion centrale 110 de la poutre 11, sensiblement plane et apte à recevoir et supporter la partie inférieure d'un siège de conducteur, non représenté sur les figures.The seat cross member 1 comprises a metal beam 11 U-section open downwardly, the lateral ends HA and HB are respectively connected to the spar 5 and the tunnel 7, for example by welding. The beam 11 has two elbows 112 and 114, located in the vicinity of the lateral ends HA and HB. The bends 112 and 114 define between them a central portion 110 of the beam 11, substantially flat and adapted to receive and support the lower portion of a driver seat, not shown in the figures.
La traverse d'assise 1 comprend également un embout métallique coudé 13 de renfort, disposé sous la partie supérieure HC de la poutre 11 au niveau du coude 112 le plus proche du pied de porte 9. L'embout 13 permet de rigidifier le coude 112. Deux tubes métalliques 15 sont disposés sous la partie supérieure HC et sous l'embout 13, sensiblement parallèlement à l'axe longitudinal Xn de la poutre 11. Ces tubes 15 s'étendent entre les deux coudes 112 et 114 de la poutre 11.The seat cross member 1 also comprises a bent metal tip 13 of reinforcement disposed under the upper portion HC of the beam 11 at the elbow 112 closest to the door foot 9. The tip 13 stiffens the elbow 112 Two metal tubes 15 are arranged under the upper part HC and under the end piece 13, substantially parallel to the longitudinal axis Xn of the beam 11. These tubes 15 extend between the two elbows 112 and 114 of the beam 11.
L'embout 13 et les tubes 15 sont reliés à la poutre 11. L'embout 13 est fixé au moyen de points de soudure électriques à la partie supérieure HC de la poutre 11, alors que les tubes 15 sont reliés à la poutre 11, au niveau de leurs extrémités respectives, au moyen de deux plaques d'interface 17. Les tubes 15 sont fixés sur les plaques d'interface 17 au moyen de cordons de soudure 18, les plaques d'interface 17 étant elles-mêmes soudées à la poutre 11 au moyen de points de soudure électriques 16. En variante, les plaques d'interface 17 peuvent être reliées à la poutre 11 au moyen de cordons de soudure.The end piece 13 and the tubes 15 are connected to the beam 11. The end piece 13 is fixed by means of electric soldering points to the upper part HC of the beam 11, whereas the tubes 15 are connected to the beam 11, at their respective ends, by means of two interface plates 17. The tubes 15 are fixed on the interface plates 17 by means of weld beads 18, the interface plates 17 being themselves welded to the Beam 11 by means of electric welding spots 16. Alternatively, the interface plates 17 may be connected to the beam 11 by means of weld seams.
Les plaques d'interface 17 comportent des ouvertures 171 de mise en communication de l'intérieur des tubes 15 avec l'extérieur. Les ouvertures 171 permettent le traitement par cataphorèse de l'intérieur des tubes 15 lors du passage de la caisse du véhicule V dans un bain de cataphorèse, au cours de son procédé de fabrication.The interface plates 17 comprise openings 171 for placing the tubes inside together. with the outside. The openings 171 allow the cataphoresis treatment of the inside of the tubes 15 during the passage of the vehicle V body in a cataphoresis bath, during its manufacturing process.
La traverse d'assise 1 conforme à l'invention est rigidifiée par l'embout 13 et les tubes 15. Grâce à ces organes de renfort, la flexion de la poutre 11 est limitée en cas de choc latéral sur le véhicule V du côté du pied de porte central 9. La traverse d'assise 1 de l'invention constitue dès lors une voie efficace de transfert des efforts résultant du choc latéral vers l'ensemble du soubassement du véhicule V. De plus, du fait de sa rigidité, la traverse d'assise 1 limite le risque de blessures pour le conducteur qui pourrait résulter d'une déformation de la traverse d'assise et du siège qu'elle supporte .The seat cross member 1 according to the invention is stiffened by the end piece 13 and the tubes 15. Thanks to these reinforcing members, the flexion of the beam 11 is limited in the event of a lateral impact on the vehicle V on the side of the 9. The seat cross member 1 of the invention therefore constitutes an effective way of transferring the forces resulting from the lateral impact to the entire underbody of the vehicle V. Moreover, because of its rigidity, the crossbeam 1 limits the risk of injury to the driver that could result from deformation of the crossbelt and the seat it supports.
Du fait de la sollicitation en flexion de la traverse d'assise 1 en cas de choc latéral, les liaisons entre les différents composants de la traverse d'assise sont fortement sollicitées. Les points de soudure électriques et les cordons de soudure reliant respectivement l'embout 13 à la poutre 11, les tubes 15 aux plaques d'interface 17 et les plaques d'interface 17 à la poutre 11 assurent une bonne tenue aux chocs de la traverse d'assise 1.Due to the bending stress of the seat cross member 1 in the event of a side impact, the connections between the various components of the seat cross member are strongly stressed. The electrical soldering points and the weld beads respectively connecting the endpiece 13 to the beam 11, the tubes 15 to the interface plates 17 and the interface plates 17 to the beam 11 ensure a good shock resistance of the cross member sitting 1.
Une traverse d'assise 1 telle que décrite ci-dessus permet donc d'obtenir une tenue accrue du soubassement du véhicule V lors d'un choc latéral, par rapport à une traverse d'assise classique, non renforcée. En outre, le coût et la masse d'une traverse d'assise conforme à l'invention sont peu différents de ceux d'une traverse d'assise non renforcée.A seat cross member 1 as described above thus makes it possible to obtain an increased holding of the vehicle V underbody during a side impact, compared with a conventional unrestrained seat cross member. In addition, the cost and mass of a seat cross member according to the invention are not very different from those of a non-reinforced seat cross.
La traverse d'assise telle que décrite peut également s'étendre entre les deux longerons latéraux du véhicule. Dans ce cas, deux embouts coudés de renfort sont avantageusement prévus, de manière à rigidifier les deux coudes de la poutre, qui sont chacun situés au niveau d'un pied de porte.The crossbeam as described can also extend between the two side rails of the vehicle. In this case, two angled reinforcing tips are advantageously provided, so as to stiffen the two elbows of the beam, which are each located at a door foot.
Dans le deuxième mode de réalisation de l'invention, représenté à la figure 4, la traverse d'assise 2 de conducteur comporte une poutre 21, analogue à la poutre 11 du premier mode de réalisation. Les extrémités latérales 2IA et 21B de la poutre 21 sont destinées à être fixées respectivement à un longeron 5 et au tunnel central 7 d'un véhicule automobile V, par des moyens appropriés non représentés. La traverse d'assise 2 comporte un embout métallique coudé 23 de renfort, disposé sous la partie supérieure 21C de la poutre 21, de manière à rigidifier le coude 212 de la poutre 21 situé au voisinage du pied de porte central 9. Deux profilés métalliques 25 et 27, plats et allongés, sont superposés et fixés sous la partie supérieure 21C de la poutre 21 et sous l'embout 23, sensiblement parallèlement à l'axe longitudinal X21 de la poutre. Le profilé 25 s'étend sensiblement sur toute la longueur de la poutre 21, alors que le profilé 27 s'étend essentiellement au-dessous du coude 212 de la poutre 21. L'embout 23 et les profilés 25 et 27 sont soudés les uns aux autres et à la poutre 21 au moyen de points de soudure électriques. Dans ce deuxième mode de réalisation, les organes de renfort 23, 25 et 27 permettent de rigidifier la poutre 21 de la traverse d'assise 2 et ainsi de limiter sa flexion en cas de choc latéral sur le véhicule V, pour un coût et un ajout de masse limités.In the second embodiment of the invention, shown in Figure 4, the seat cross member 2 comprises a beam 21, similar to the beam 11 of the first embodiment. The lateral ends 2IA and 21B of the beam 21 are intended to be fixed respectively to a spar 5 and to the central tunnel 7 of a motor vehicle V, by appropriate means not shown. The seat cross member 2 comprises a bent metal tip 23 of reinforcement, disposed under the upper part 21C of the beam 21, so as to stiffen the bend 212 of the beam 21 located near the central door foot 9. Two metal profiles 25 and 27, flat and elongated, are superimposed and fixed under the upper portion 21C of the beam 21 and under the nozzle 23, substantially parallel to the longitudinal axis X 2 1 of the beam. The profile 25 extends substantially over the entire length of the beam 21, while the section 27 extends substantially below the bend 212 of the beam 21. The end piece 23 and the sections 25 and 27 are welded together. to the others and to the beam 21 by means of electric welding points. In this second embodiment, the reinforcement members 23, 25 and 27 make it possible to stiffen the beam 21 of the seat cross member 2 and thus to limit its flexion in the event of a lateral impact on the vehicle V, for a cost and a added limited mass.
Dans le troisième mode de réalisation représenté à la figure 5, la traverse d'assise 3 de conducteur comporte une poutre 31, analogue à la poutre 11 du premier mode de réalisation, dont les extrémités latérales 31A et 31B sont destinées à être fixées respectivement à un longeron 5 et au tunnel central 7 d'un véhicule automobile V, par des moyens appropriés non représentés. La traverse d'assise 3 comporte également un embout métallique coudé 33 de renfort, disposé sous la partie supérieure 31C de la poutre 31 et apte à rigidifier le coude 312 de la poutre 31 le plus proche du pied de porte central 9. Dans ce troisième mode de réalisation, la traverse d'assise 3 comporte en outre un tube 35 disposé au-dessus de la partie supérieure 31C de la poutre 31, sensiblement parallèlement à l'axe longitudinal X3i de la poutre. Une bride 37 relie le tube 35 à la partie inférieure 31D de la poutre 31 pour éviter le flambage du tube 35. Un pion 39, solidaire d'un support 38, est prévu pour être introduit simultanément dans trois logements superposés ménagés respectivement dans l'embout 33, dans la poutre 31 et dans le tube 35. Le pion 39 permet le centrage du tube 35 par rapport à la poutre 31 et assure le transfert des efforts de la poutre 31 vers le tube 35. L'embout 33, le tube 35 et le support 38 sont soudés les uns aux autres et à la poutre 31 au moyen de points de soudure électriques. Les organes de renfort 33 et 35 permettent, comme dans les modes de réalisation précédents, de limiter la flexion de la poutre 31 de la traverse d'assise 3 en cas de choc latéral sur le véhicule V. Ainsi, les efforts résultant du choc peuvent être transmis à l'ensemble du soubassement du véhicule V et le risque de blessures pour le conducteur du véhicule est réduit.In the third embodiment shown in FIG. 5, the conductor cross-member 3 comprises a beam 31, similar to the beam 11 of the first embodiment, whose lateral ends 31A and 31B are intended to be fixed respectively to a spar 5 and the central tunnel 7 of a motor vehicle V, by means of appropriate means not shown. The seat cross member 3 also comprises a bent metal tip 33 for reinforcing, arranged under the upper part 31C of the beam 31 and able to stiffen the bend 312 of the beam 31 closest to the central door foot 9. In this third embodiment, the seat cross member 3 further comprises a tube 35 disposed above the upper portion 31C of the beam 31, substantially parallel to the longitudinal axis X 3i of the beam. A flange 37 connects the tube 35 to the lower part 31D of the beam 31 to prevent buckling of the tube 35. A pin 39, integral with a support 38, is provided to be introduced simultaneously into three superposed housings formed respectively in the endpiece 33, in the beam 31 and in the tube 35. The pin 39 allows the centering of the tube 35 relative to the beam 31 and ensures the transfer of the forces of the beam 31 to the tube 35. The tip 33, the tube 35 and the support 38 are welded to each other and to the beam 31 by means of electric soldering points. The reinforcing members 33 and 35 make it possible, as in the previous embodiments, to limit the flexion of the beam 31 of the seat cross member 3 in the event of a lateral impact on the vehicle V. Thus, the forces resulting from the impact can be transmitted to the entire underbody of the vehicle V and the risk of injury to the driver of the vehicle is reduced.
La traverse d'assise de véhicule automobile conforme à l'invention a été décrite pour une traverse d'assise de conducteur. Cependant, quel que soit le mode de réalisation, la traverse d'assise conforme à l'invention peut être mise en œuvre pour la traverse d'assise de conducteur, la traverse d'assise de passager avant et la traverse d'assise arrière pour un véhicule comportant un tunnel de transmission, ou pour la traverse d'assise avant et la traverse d'assise arrière pour un véhicule ne comportant pas de tunnel de transmission. The cross-member of a motor vehicle seat according to the invention has been described for a driver's seat crossmember. However, whatever the embodiment, the seat cross member according to the invention can be implemented for the driver's seat cross member, the front passenger seat cross member and the rear seat cross member for a vehicle with a transmission tunnel, or for the front seat cross member and the rear seat cross member for a vehicle without a transmission tunnel.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0600956A FR2896735B1 (en) | 2006-02-02 | 2006-02-02 | MOTOR VEHICLE SEAT TRAVERSE |
| FR0600956 | 2006-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2007088303A1 true WO2007088303A1 (en) | 2007-08-09 |
Family
ID=37057169
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/FR2007/050706 Ceased WO2007088303A1 (en) | 2006-02-02 | 2007-01-30 | Motor vehicle seat part cross member |
Country Status (2)
| Country | Link |
|---|---|
| FR (1) | FR2896735B1 (en) |
| WO (1) | WO2007088303A1 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2096020A1 (en) * | 2008-02-29 | 2009-09-02 | Ford Global Technologies, LLC | Vehicle body member |
| DE102008036336A1 (en) * | 2008-08-04 | 2010-02-18 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Motor-vehicle body has two seat crossbeams in base area of motor vehicle, which are connected with medium tunnel, where seat crossbeams are conducted in U-profile formed cross-sections |
| CN103895535A (en) * | 2012-12-27 | 2014-07-02 | 重庆长安汽车股份有限公司 | Back installation beam assembly of front row seat of car |
| KR101734575B1 (en) * | 2011-09-22 | 2017-05-11 | 현대자동차주식회사 | Seat cross member for vehicle |
| CN106740286A (en) * | 2015-11-20 | 2017-05-31 | 北汽福田汽车股份有限公司 | Seat support, the production method of seat support and automobile |
| US9834255B2 (en) * | 2015-07-15 | 2017-12-05 | Hyundai Motor Company | Floor body for vehicle |
| KR101836735B1 (en) | 2016-11-09 | 2018-03-08 | 현대자동차주식회사 | Rear floor cross member for vehicle and rear floor assembly for vehicle having the same |
| CN111976838A (en) * | 2020-08-31 | 2020-11-24 | 安徽江淮汽车集团股份有限公司 | Vehicle body bottom plate assembly and automobile |
| CN112277736A (en) * | 2020-11-12 | 2021-01-29 | 合肥长安汽车有限公司 | Mounting beam assembly structure of platformized front row seat |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2933666B1 (en) | 2008-07-08 | 2010-12-31 | Peugeot Citroen Automobiles Sa | DEVICE FOR REINFORCING A FRONT SEAT TRAY OF VEHICLE |
| CN102935864A (en) * | 2012-10-24 | 2013-02-20 | 安徽誉丰汽车技术有限责任公司 | Assembly structure of automobile chair beam |
| FR3034742B1 (en) * | 2015-04-09 | 2017-04-21 | Peugeot Citroen Automobiles Sa | VEHICLE FLOOR REINFORCING DEVICE |
| FR3095633B1 (en) | 2019-05-02 | 2021-04-02 | Psa Automobiles Sa | Front seat cross member for motor vehicle with variable thickness |
| FR3119363A1 (en) * | 2021-01-29 | 2022-08-05 | Psa Automobiles Sa | Underbody structure in the event of a side impact |
| FR3143525A1 (en) | 2022-12-19 | 2024-06-21 | Psa Automobiles Sa | Body underbody equipped with controlled compression side members in the event of a side impact |
| FR3164168A1 (en) * | 2024-07-05 | 2026-01-09 | Stellantis Auto Sas | CROSS BEAM FOR MOTOR VEHICLE UNDERBody STRUCTURE AND VEHICLE INCLUDING SUCH A CROSS BEAM |
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| DE19603098A1 (en) * | 1996-01-29 | 1997-07-31 | Daimler Benz Ag | Passenger cell with stiffened B columns for convertible or open car |
| DE19943296A1 (en) * | 1999-09-10 | 2001-03-22 | Porsche Ag | Passenger compartment for car, with tubular structure of external reinforcement tubes to increase transverse rigidity of compartment under side impact loads |
| US20010028179A1 (en) * | 2000-02-22 | 2001-10-11 | Yorito Takemoto | Body structure |
| US20020180244A1 (en) * | 2001-06-05 | 2002-12-05 | Honda Giken Kogyo Kabushiki Kaisha | Automobile body structure |
| WO2003022661A1 (en) * | 2001-09-13 | 2003-03-20 | Peugeot Citroen Automobiles | Motor vehicle chassis |
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| JP3335780B2 (en) * | 1994-08-31 | 2002-10-21 | 富士重工業株式会社 | Body structure below the center pillar of the vehicle |
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- 2006-02-02 FR FR0600956A patent/FR2896735B1/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19603098A1 (en) * | 1996-01-29 | 1997-07-31 | Daimler Benz Ag | Passenger cell with stiffened B columns for convertible or open car |
| DE19943296A1 (en) * | 1999-09-10 | 2001-03-22 | Porsche Ag | Passenger compartment for car, with tubular structure of external reinforcement tubes to increase transverse rigidity of compartment under side impact loads |
| US20010028179A1 (en) * | 2000-02-22 | 2001-10-11 | Yorito Takemoto | Body structure |
| US20020180244A1 (en) * | 2001-06-05 | 2002-12-05 | Honda Giken Kogyo Kabushiki Kaisha | Automobile body structure |
| WO2003022661A1 (en) * | 2001-09-13 | 2003-03-20 | Peugeot Citroen Automobiles | Motor vehicle chassis |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2096020A1 (en) * | 2008-02-29 | 2009-09-02 | Ford Global Technologies, LLC | Vehicle body member |
| DE102008036336A1 (en) * | 2008-08-04 | 2010-02-18 | Dr.Ing.H.C.F.Porsche Aktiengesellschaft | Motor-vehicle body has two seat crossbeams in base area of motor vehicle, which are connected with medium tunnel, where seat crossbeams are conducted in U-profile formed cross-sections |
| DE102008036336B4 (en) * | 2008-08-04 | 2020-03-05 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Vehicle body |
| KR101734575B1 (en) * | 2011-09-22 | 2017-05-11 | 현대자동차주식회사 | Seat cross member for vehicle |
| CN103895535A (en) * | 2012-12-27 | 2014-07-02 | 重庆长安汽车股份有限公司 | Back installation beam assembly of front row seat of car |
| US9834255B2 (en) * | 2015-07-15 | 2017-12-05 | Hyundai Motor Company | Floor body for vehicle |
| CN106740286A (en) * | 2015-11-20 | 2017-05-31 | 北汽福田汽车股份有限公司 | Seat support, the production method of seat support and automobile |
| CN106740286B (en) * | 2015-11-20 | 2020-02-14 | 北京宝沃汽车有限公司 | Seat support, production method of seat support and automobile |
| KR101836735B1 (en) | 2016-11-09 | 2018-03-08 | 현대자동차주식회사 | Rear floor cross member for vehicle and rear floor assembly for vehicle having the same |
| CN111976838A (en) * | 2020-08-31 | 2020-11-24 | 安徽江淮汽车集团股份有限公司 | Vehicle body bottom plate assembly and automobile |
| CN111976838B (en) * | 2020-08-31 | 2021-06-18 | 安徽江淮汽车集团股份有限公司 | Vehicle body bottom plate assembly and automobile |
| CN112277736A (en) * | 2020-11-12 | 2021-01-29 | 合肥长安汽车有限公司 | Mounting beam assembly structure of platformized front row seat |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2896735B1 (en) | 2009-11-27 |
| FR2896735A1 (en) | 2007-08-03 |
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