FR2859445A1 - Motor vehicle dashboard cross piece, has reinforced section including hollow body disposed around tube, and spacer connecting hollow body and tube, where body has tubular form extending along longitudinal direction of tube - Google Patents
Motor vehicle dashboard cross piece, has reinforced section including hollow body disposed around tube, and spacer connecting hollow body and tube, where body has tubular form extending along longitudinal direction of tube Download PDFInfo
- Publication number
- FR2859445A1 FR2859445A1 FR0310619A FR0310619A FR2859445A1 FR 2859445 A1 FR2859445 A1 FR 2859445A1 FR 0310619 A FR0310619 A FR 0310619A FR 0310619 A FR0310619 A FR 0310619A FR 2859445 A1 FR2859445 A1 FR 2859445A1
- Authority
- FR
- France
- Prior art keywords
- tube
- motor vehicle
- hollow body
- cross member
- hollow
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
- B62D25/14—Dashboards as superstructure sub-units
- B62D25/145—Dashboards as superstructure sub-units having a crossbeam incorporated therein
Abstract
Description
La présente invention concerne une traverse pour véhicule automobile, duThe present invention relates to a cross member for a motor vehicle,
type comprenant au moins un tube et présentant un tronçon renforcé. type comprising at least one tube and having a reinforced section.
L'invention s'applique en particulier à une traverse de planche de bord. The invention applies in particular to a dashboard crossmember.
Une telle traverse s'étend le long de la direction transversale et horizontale du véhicule automobile, généralement dénommée axe Y. La traverse est reliée par ses extrémités aux montants dits A de la caisse du véhicule automobile. Elle est destinée à supporter d'une part la planche de bord, et d'autre part la colonne de direction, via son tronçon renforcé. Such a cross member extends along the transverse and horizontal direction of the motor vehicle, generally called Y axis. The cross member is connected at its ends to said amounts A of the body of the motor vehicle. It is intended to support on the one hand the dashboard, and on the other hand the steering column, via its reinforced section.
Le tronçon renforcé possède une rigidité et donc une fréquence propre de vibrations accrues qui permettent de satisfaire aux exigences des constructeurs de véhicules automobiles pour ce qui concerne la structure supportant la colonne de direction. The reinforced section has a rigidity and therefore a natural frequency of increased vibrations that meet the requirements of manufacturers of motor vehicles with regard to the structure supporting the steering column.
Dans l'état de la technique, la traverse comprend deux tubes disposés bout à bout, l'un d'épaisseur plus faible et l'autre d'épaisseur plus importante. In the state of the art, the sleeper comprises two tubes arranged end to end, one of smaller thickness and the other of greater thickness.
Ces deux tubes sont soudés l'un à l'autre. Le tronçon d'épaisseur plus importante constitue le tronçon renforcé. These two tubes are welded to each other. The section of greater thickness is the reinforced section.
De telles traverses permettent de satisfaire aux exigences des constructeurs de véhicules automobiles, mais ont des masses élevées. Such sleepers can meet the requirements of motor vehicle manufacturers, but have high masses.
Un but de l'invention est de résoudre ce problème en fournissant une traverse du type précité qui soit de masse réduite. An object of the invention is to solve this problem by providing a cross member of the aforementioned type which is of reduced mass.
A cet effet, l'invention a pour objet une traverse du type précité, caractérisée en ce qu'elle comprend, dans son tronçon renforcé, un corps creux de renfort disposé autour du tube et au moins une entretoise reliant le corps de renfort et le tube. For this purpose, the invention relates to a cross member of the aforementioned type, characterized in that it comprises, in its reinforced section, a reinforcing hollow body disposed around the tube and at least one spacer connecting the reinforcement body and the tube.
Selon des modes particuliers de réalisation, la traverse peut comprendre l'une ou plusieurs des caractéristiques suivantes, prise(s) isolément ou selon toutes les combinaisons techniquement possibles: - le corps creux de renfort a sensiblement une forme tubulaire s'étendant le long de la direction longitudinale du tube; - le corps creux de renfort est muni de moyens de montage d'un équipement sur la traverse; - les moyens de montage sont venus de matière avec le corps creux; - le corps creux de renfort est solidaire de moyens de fixation de la traverse sur la caisse du véhicule automobile; - les moyens de fixation comprennent: - un dispositif de liaison d'une extrémité latérale de la traverse à un montant latéral de la caisse du véhicule automobile, et - une jambe de force pour lier la traverse au plancher de la caisse du véhicule automobile; - le corps creux de renfort comprend au moins deux coques assemblées; et - le corps creux de renfort est au moins en partie formée par une pièce emboutie. According to particular embodiments, the crossmember may comprise one or more of the following characteristics, taken in isolation or in any technically possible combination: the reinforcing hollow body has substantially a tubular shape extending along the longitudinal direction of the tube; - The hollow reinforcement body is provided with means for mounting equipment on the cross; - The mounting means are integral with the hollow body; - The hollow reinforcing body is secured to fastening means of the cross member on the body of the motor vehicle; the fastening means comprise: a device for connecting a lateral end of the cross member to a lateral upright of the body of the motor vehicle, and a strut for binding the cross member to the floor of the body of the motor vehicle; the hollow reinforcement body comprises at least two assembled shells; and the reinforcing hollow body is at least partly formed by a stamped part.
L'invention a également pour objet un ensemble comprenant une traverse de planche de bord pour véhicule automobile et une colonne de direction montée sur la traverse, caractérisé en ce que la traverse est une traverse telle que définie ci-dessus. The invention also relates to an assembly comprising a dashboard cross member for a motor vehicle and a steering column mounted on the cross member, characterized in that the cross member is a cross member as defined above.
L'invention a en outre pour objet un véhicule automobile, caractérisé en ce qu'il comprend un ensemble tel que défini ci-dessus. The invention further relates to a motor vehicle, characterized in that it comprises an assembly as defined above.
L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins annexés, sur lesquels: - la figure 1 est une vue schématique en perspective d'une traverse de planche de bord selon l'invention, - la figure 2 est une vue schématique en perspective éclatée de la traverse de la figure 1, et - la figure 3 est une vue schématique, partielle et de dessus, illustrant le tronçon renforcé de la traverse des figures 1 et 2. The invention will be better understood on reading the description which will follow, given solely by way of example, and with reference to the appended drawings, in which: FIG. 1 is a schematic perspective view of a crossmember dashboard according to the invention, - Figure 2 is a schematic exploded perspective view of the cross member of Figure 1, and - Figure 3 is a schematic view, partial and from above, illustrating the reinforced section of the cross member. Figures 1 and 2.
Dans tout ce qui suit, les orientations utilisées sont les orientations habituelles d'un véhicule automobile. In all that follows, the orientations used are the usual orientations of a motor vehicle.
Ainsi, les termes avant , arrière , droite et gauche s'entendent par rapport au sens de marche du véhicule automobile et à la position d'un conducteur. Thus, the terms front, rear, right and left are in relation to the direction of travel of the motor vehicle and the position of a driver.
Les figures 1 à 3 illustrent une traverse 1 de planche de bord pour véhicule automobile, cette traverse 1 comprenant principalement: - un tube 3, - des dispositifs 5 de liaison des extrémités 7 du tube 3 à la caisse du véhicule automobile, - une jambe de force 9 pour lier la traverse 1 au plancher du véhicule automobile, - un corps creux Il de renfort d'un tronçon gauche 13 de la traverse 1, et - un élément 14 de fixation de la jambe de force 9 sur le corps creux 11. FIGS. 1 to 3 illustrate a cross member 1 of the dashboard for a motor vehicle, this crossmember 1 comprising mainly: a tube 3, devices 5 for connecting the ends 7 of the tube 3 to the body of the motor vehicle, a leg force 9 to bind the crossbar 1 to the floor of the motor vehicle, - a hollow body It reinforcement of a left section 13 of the crossbar 1, and - an element 14 for attaching the strut 9 to the hollow body 11 .
Comme illustré plus particulièrement par la figure 2, le tube 3 s'étend le long d'une direction D destinée à être transversale et horizontale, c'est-à-dire confondue avec l'axe Y du véhicule automobile dans lequel la traverse 1 est montée. As illustrated more particularly in FIG. 2, the tube 3 extends along a direction D intended to be transverse and horizontal, that is to say merging with the Y axis of the motor vehicle in which the crosspiece 1 is mounted.
Le tube 3 a par exemple une section sensiblement circulaire sur toute sa longueur. The tube 3 has for example a substantially circular section over its entire length.
Des entretoises 15 ont été enfilées sur le tronçon gauche du tube 3, pour former le tronçon renforcé 13 de la traverse 1, comme cela sera décrit par la suite. Spacers 15 were threaded onto the left section of the tube 3 to form the reinforced section 13 of the cross member 1, as will be described later.
Ces entretoises 15 ont des formes sensiblement complémentaires de celle de l'intérieur du corps creux 11. Les entretoises 15 ont par exemple été fixées par des soudures au tube 3. These spacers 15 have forms substantially complementary to that of the interior of the hollow body 11. The spacers 15 have for example been fixed by welds to the tube 3.
Les dispositifs de liaison 5 comprennent chacun une équerre avant 17 et une équerre arrière 19 soudées l'une à l'autre le long de deux ailes 21 et 23 s'étendant verticalement. The connecting devices 5 each comprise a front bracket 17 and a rear bracket 19 welded to each other along two wings 21 and 23 extending vertically.
Ces équerres 17 et 19 ont par exemple été fixées par des vis aux extrémités 7 du tube 3. These brackets 17 and 19 have for example been fixed by screws at the ends 7 of the tube 3.
Chaque dispositif de liaison 5 peut en outre comprendre d'autres organes, par exemple un tirant 24 tel que celui représenté sur le dispositif 5 gauche de la figure 1. Each connecting device 5 may further comprise other members, for example a tie rod 24 such as that shown on the left device of FIG. 1.
Les dispositifs 5 permettent de relier les extrémités 7 du tube 3 aux montants dits A de la caisse du véhicule automobile. De tels dispositifs étant classiques, leur structure ne sera pas décrite plus en détail par la suite. The devices 5 make it possible to connect the ends 7 of the tube 3 to said uprights A of the body of the motor vehicle. Such devices being conventional, their structure will not be described in more detail later.
Le corps creux 11 comprend une coque supérieure 23 et une coque inférieure 25. The hollow body 11 comprises an upper shell 23 and a lower shell 25.
Les coques 23 et 25 sont par exemple formées par emboutissage de tôles. The shells 23 and 25 are for example formed by stamping sheets.
La coque supérieure 23 comprend une région centrale évasée 27 pour s'étendre vers l'avant et vers l'arrière. The upper shell 23 includes a flared central region 27 for extending forward and rearward.
L'extrémité gauche de la coque supérieure 23 comporte en outre une équerre de renfort 29. The left end of the upper shell 23 further comprises a reinforcement bracket 29.
La coque inférieure 25 comporte des pattes s'étendant vers l'avant et vers l'arrière pour former une platine 31. The lower shell 25 has lugs extending forwardly and rearwardly to form a plate 31.
L'extrémité gauche de la coque inférieure 25 comporte également une équerre 33 de renfort. The left end of the lower shell 25 also comprises a reinforcement bracket 33.
Le corps creux 11 est formé par assemblage des coques 23 et 25. Il a alors sensiblement une forme tubulaire creuse avec un tronçon central évasé, qui est formé par la région évasée 27 de la coque supérieure 23 et la platine 31 de la coque inférieure 25 et qui constitue des moyens 34 de montage d'une colonne de direction 35 (fig.1). The hollow body 11 is formed by assembling the shells 23 and 25. It then has a substantially hollow tubular shape with a flared central section, which is formed by the flared region 27 of the upper shell 23 and the plate 31 of the lower shell 25 and which constitutes means 34 for mounting a steering column 35 (FIG.
Dans la traverse 1 de la figure 1, le corps creux 11, c'est-à-dire les coques 23 et 25 entourent les entretoises 15 et le tube 3 dans le tronçon gauche 13. In the cross member 1 of FIG. 1, the hollow body 11, that is to say the shells 23 and 25 surround the spacers 15 and the tube 3 in the left section 13.
Les coques 23 et 25 sont alors par exemple soudées entre elles ainsi que sur les entretoises 15 sur lesquelles elles prennent appui. The shells 23 and 25 are then for example welded together and on the spacers 15 on which they are supported.
Les équerres de renfort 29 et 33 du corps creux 11 sont fixées, par exemple par des vis au dispositif de liaison 5 gauche. The reinforcing brackets 29 and 33 of the hollow body 11 are fixed, for example by screws to the connecting device 5 left.
La jambe de force 9 est par exemple fixée par soudage à l'élément de fixation 14 qui est lui-même soudé et/ou vissé à l'extrémité droite du corps creux 11. The strut 9 is for example fixed by welding to the fastening element 14 which is itself welded and / or screwed to the right end of the hollow body 11.
L'extrémité inférieure de la jambe de force 9 est destinée à être fixée, par exemple par des vis, au tunnel du plancher du véhicule automobile. The lower end of the strut 9 is intended to be fixed, for example by screws, the tunnel floor of the motor vehicle.
Une fois ainsi installée dans le véhicule automobile, la traverse 1 supporte la planche de bord (non-représentée) du véhicule automobile ainsi que la colonne de direction 35 qui est schématisée sur la figure 1. Once thus installed in the motor vehicle, the crossbar 1 supports the dashboard (not shown) of the motor vehicle and the steering column 35 which is shown schematically in Figure 1.
Cette colonne de direction 35 est par exemple montée par vissage sur 10 les moyens 34 de montage. This steering column 35 is for example mounted by screwing on the mounting means 34.
Du fait de la présence du corps creux 11 et des entretoises 15 sur lesquelles il prend appui, la traverse 1 présente une rigidité et donc une fréquence propre accrue dans le tronçon renforcé 13. Due to the presence of the hollow body 11 and the spacers 15 on which it bears, the cross member 1 has a rigidity and therefore an increased natural frequency in the reinforced section 13.
Pour autant, l'épaisseur du corps creux 11 est faible, ce qui conduit à une masse globale plus réduite que dans l'état de la technique. However, the thickness of the hollow body 11 is low, which leads to a lower overall mass than in the state of the art.
On a ainsi constaté qu'une telle structure pouvait conduire à une réduction de masse comprise entre 10% et 20% pour une traverse 1 de planche de bord. It has thus been found that such a structure could lead to a weight reduction of between 10% and 20% for a cross member 1 of the dashboard.
On notera également que les moyens 34 de montage étant venus de matière avec le corps creux 11, le coût de la traverse 1 est réduit. Cela est d'autant plus vrai que le corps creux 11 est réalisé par emboutissage. Note also that the mounting means 34 being integral with the hollow body 11, the cost of the crossbar 1 is reduced. This is even more true that the hollow body 11 is made by stamping.
En variante, le nombre d'entretoises 15 peut être différent de celui décrit précédemment. Alternatively, the number of spacers 15 may be different from that described above.
De manière plus générale, le tronçon renforcé 13 peut être utilisé pour monter un autre équipement qu'une colonne de direction, et la traverse 1 peut être une traverse utilisée dans un véhicule automobile à un autre emplacement que celui de la planche de bord. More generally, the reinforced section 13 may be used to mount other equipment than a steering column, and the cross member 1 may be a cross member used in a motor vehicle at a location other than that of the dashboard.
Claims (10)
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0310619A FR2859445B1 (en) | 2003-09-09 | 2003-09-09 | TRAVERSE FOR MOTOR VEHICLE COMPRISING A REINFORCED STRING |
| FR0400615A FR2859446B1 (en) | 2003-09-09 | 2004-01-22 | TRAVERSE FOR MOTOR VEHICLE COMPRISING A REINFORCED STRING. |
| EP04787341A EP1663763A1 (en) | 2003-09-09 | 2004-09-09 | Cross member comprising a reinforced section for a motor vehicle |
| PCT/FR2004/002292 WO2005025969A1 (en) | 2003-09-09 | 2004-09-09 | Cross member comprising a reinforced section for a motor vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0310619A FR2859445B1 (en) | 2003-09-09 | 2003-09-09 | TRAVERSE FOR MOTOR VEHICLE COMPRISING A REINFORCED STRING |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2859445A1 true FR2859445A1 (en) | 2005-03-11 |
| FR2859445B1 FR2859445B1 (en) | 2006-03-17 |
Family
ID=34178869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0310619A Expired - Fee Related FR2859445B1 (en) | 2003-09-09 | 2003-09-09 | TRAVERSE FOR MOTOR VEHICLE COMPRISING A REINFORCED STRING |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2859445B1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006106197A1 (en) * | 2005-04-06 | 2006-10-12 | Faurecia Interieur Industrie | Reinforcing structure for motor vehicle capable of limiting instrument panel vibrations, and corresponding motor vehicle |
| FR2925008A1 (en) * | 2007-12-12 | 2009-06-19 | Faurecia Interieur Ind Snc | Reinforcement structure for motor vehicle, has fascia crosspiece rigidly fixed to front left post by screw that is introduced in transversal section of crosspiece, where crosspiece has reinforcement tube surrounding end part of hollow tube |
| EP3626587A1 (en) * | 2018-09-21 | 2020-03-25 | Toyota Jidosha Kabushiki Kaisha | Steering support structure |
| FR3103452A1 (en) * | 2019-11-25 | 2021-05-28 | Renault S.A.S | Device for fixing a cross member of a driving position to a body structure of a motor vehicle |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0827894A1 (en) * | 1996-09-04 | 1998-03-11 | Delphi Automotive Systems Deutschland GmbH | Motor vehicle body |
| US5810393A (en) * | 1995-12-21 | 1998-09-22 | Dr. Ing. H.C.F. Porsche Ag | Steering column support for a motor vehicle |
| US20010043835A1 (en) * | 2000-03-23 | 2001-11-22 | Christoph Mainka | Instrument support member |
-
2003
- 2003-09-09 FR FR0310619A patent/FR2859445B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5810393A (en) * | 1995-12-21 | 1998-09-22 | Dr. Ing. H.C.F. Porsche Ag | Steering column support for a motor vehicle |
| EP0827894A1 (en) * | 1996-09-04 | 1998-03-11 | Delphi Automotive Systems Deutschland GmbH | Motor vehicle body |
| US20010043835A1 (en) * | 2000-03-23 | 2001-11-22 | Christoph Mainka | Instrument support member |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006106197A1 (en) * | 2005-04-06 | 2006-10-12 | Faurecia Interieur Industrie | Reinforcing structure for motor vehicle capable of limiting instrument panel vibrations, and corresponding motor vehicle |
| FR2884215A1 (en) * | 2005-04-06 | 2006-10-13 | Faurecia Interieur Ind Snc | REINFORCING STRUCTURE FOR A MOTOR VEHICLE CAPABLE OF LIMITING THE DASHBOARD VIBRATIONS AND THE CORRESPONDING MOTOR VEHICLE. |
| US7571950B2 (en) | 2005-04-06 | 2009-08-11 | Faurecia Interieur Industrie | Reinforcing structure for a motor vehicle capable of limiting dashboard vibrations and corresponding motor vehicle |
| FR2925008A1 (en) * | 2007-12-12 | 2009-06-19 | Faurecia Interieur Ind Snc | Reinforcement structure for motor vehicle, has fascia crosspiece rigidly fixed to front left post by screw that is introduced in transversal section of crosspiece, where crosspiece has reinforcement tube surrounding end part of hollow tube |
| EP3626587A1 (en) * | 2018-09-21 | 2020-03-25 | Toyota Jidosha Kabushiki Kaisha | Steering support structure |
| CN110937026A (en) * | 2018-09-21 | 2020-03-31 | 丰田自动车株式会社 | Steering support structure |
| CN110937026B (en) * | 2018-09-21 | 2022-03-25 | 丰田自动车株式会社 | Steering support structure |
| FR3103452A1 (en) * | 2019-11-25 | 2021-05-28 | Renault S.A.S | Device for fixing a cross member of a driving position to a body structure of a motor vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2859445B1 (en) | 2006-03-17 |
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| ST | Notification of lapse |
Effective date: 20100531 |