WO2006027508A1 - Cross member extending under the windshield aperture for a motor vehicle - Google Patents

Cross member extending under the windshield aperture for a motor vehicle Download PDF

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Publication number
WO2006027508A1
WO2006027508A1 PCT/FR2005/050592 FR2005050592W WO2006027508A1 WO 2006027508 A1 WO2006027508 A1 WO 2006027508A1 FR 2005050592 W FR2005050592 W FR 2005050592W WO 2006027508 A1 WO2006027508 A1 WO 2006027508A1
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WO
WIPO (PCT)
Prior art keywords
traverse
bay according
cross member
reinforcing ribs
vehicle
Prior art date
Application number
PCT/FR2005/050592
Other languages
French (fr)
Inventor
Elisabeth Emeric
Pierre Madeleine
Original Assignee
Renault S.A.S.
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 Renault S.A.S. filed Critical Renault S.A.S.
Publication of WO2006027508A1 publication Critical patent/WO2006027508A1/en

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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
    • B62D25/081—Cowls

Definitions

  • An under-bay cross member of a motor vehicle is a cross member disposed between the front left and right legs of the vehicle and whose function is, in particular, to support the lower rim of the windshield.
  • the under-bay structures of the vehicles currently known consist of a lower steel bay rail connected to a sheet steel partition which separates the passenger compartment of the vehicle from its engine compartment. It includes internal reinforcements, also made of steel, and assembled by welding. These known sleepers pose problems of vibration behavior which are solved by the addition of additional parts such as bridges and reinforcements. However, these reinforcements are made of steel which poses corrosion problems which require the bonding of the connections between the parts and the use of more expensive specific steel sheets, for example sheets coated with a thin organic coating.
  • the cross member is an open structure and not rigid with the heating partition to which it is welded.
  • the lower cross bay has a section too small for it to be possible to house several equipment.
  • the volume occupied by this cross is not optimized.
  • the present invention relates to a sub-bay cross member for a motor vehicle that overcomes these disadvantages.
  • the crossmember can be made in an upper part and a lower part assembled to each other, the reinforcing ribs being integrated in the upper part and / or the lower part.
  • the crossbar is made in one part, including the reinforcing ribs.
  • the crossmember comprises overmolded or glued metal inserts constituting fixing lugs to attach it to the liners of the front feet of the vehicle.
  • the vehicle has at least a portion of cross section large enough to accommodate thereon at least one functional element of the vehicle, including a water box and / or a mechanism for supporting and driving the brushes. wiper.
  • the functional elements are provided in zones separated according to the length of the crossmember.
  • the crosspiece comprises a longitudinal partition wall separating the water box from a wall of the cross member defining the passenger compartment of the vehicle; - Reinforcing ribs have clearances to receive the functional elements;
  • the cross is fixed by gluing on an upper rail of the vehicle deck; the crossmember has fastening clips to the upper rail of the apron to maintain it temporarily in position thereon; - The cross has reinforcing ribs provided at its left and right ends under its lower part to improve the impact resistance;
  • the cross has a water box reported or integrated into the cross.
  • FIG. 1 is an exploded perspective view of a sub-bay cross member according to the present invention
  • FIG. 2 is a sectional view of the cross-member shown in FIG. 1 along plane II;
  • FIG. 3 is a sectional view of the cross member shown in Figure 1 by a plane III-III of Figure 7 located on the driver's side of the vehicle;
  • FIG. 4 is a detail view of a fastening clip to the upper rail of apron
  • FIG. 5 is a partial perspective view showing the attachment of the cross member to the lining of the left front leg of the chassis of a motor vehicle;
  • FIG. 6 is a perspective view of a cross member according to the invention comprising a reported water box
  • Figure 7 is a top view of the cross member shown in Figure 6;
  • FIG. 8 is a perspective bottom view of the cross member shown in FIGS. 6 and 7.
  • the sub-bay cross member of the invention designated by the general reference 2 consists of an upper part 4 and a lower part 8 as well as reinforcing ribs 10 arranged in the defined internal volume by the upper parts 4 and lower 8.
  • the ribs 10 are not all identical to each other. Some, like the leftmost rib in Figure 1, are full. Others have central recesses 12. Still others (right part of Figure 1) have clearances 14 for receiving a functional element of the vehicle, as will be explained in more detail later.
  • Parts 4 and 8, as well as the reinforcing ribs 10 are made of plastic optionally reinforced with glass fibers.
  • they may be made of a thermosetting plastic material or a thermoplastic plastic material, for example I 1 AMC
  • the ribs are integrated either at the top or at the bottom. It is also possible that some of the ribs are integrated in the upper part, while the others are integrated in the lower part.
  • the crossbar 2 thus constitutes a closed volume having a high rigidity. Through the use of plastic material, the corrosion problems encountered in prior art steel bottom sleepers are eliminated. The presence of ribs also gives rigidity to the assembly and avoids vibration problems.
  • steel inserts 16 are provided at each end of the cross.
  • the inserts 16 can be assembled to the parts 4 and 8 in various ways, in particular by gluing. They can also be overmolded.
  • the sub-beam 2 is supported on an upper deck rail consisting of an upper portion 18 is a lower portion 20.
  • the cross section of the cross member is large enough that it is possible to receive functional elements of the vehicle.
  • the crossmember comprises an integrated water box 22 comprising a water discharge tube 24 and a windscreen wiper support plate 26.
  • FIG. 2 shows a cross-sectional view of the crossbar shown in FIG. 1 by a plane 76 (see FIG. 7) passing through the center of the water box 22, that is to say other words, substantially through the center of the discharge tube 22.
  • the lower end 30 of the windshield 32 is supported on the upper portion 4 of the crossbar bay 2.
  • a canopy grill 34 is supported by one of its ends on the lower end 30 of the windshield 32 and at its other end on the lower part 8 of the crossbar bay. Grid the
  • canopy 34 allows the intake of outside air in the passenger compartment of the vehicle.
  • the water box 35 integrated in the crosspiece has the function of collecting the rainwater flowing along the windshield 32. It is delimited by an outer wall 36 of the lower part 8 of the cross and a partition wall 38.
  • the partition 38 avoids the contact of water with a heating partition 40 disposed opposite an air conditioning and heating unit (not shown) disposed in the passenger compartment at the water box.
  • the water collected in the water box is discharged through the tube 22 whose end is open. This open end does not appear in the section plane because it is located outside this plane. Note also the presence of the substantially rectangular opening 28 (see Figure 1) for admission of air into the passenger compartment.
  • the cross member 2 rests on an upper deck cross member 17 consisting of an upper portion 18 and a lower portion 20 made of steel welded together.
  • An apron 42 separates the passenger compartment engine.
  • the apron 42 is supported at its upper part, on the top rail of apron 17, and its lower part on a bottom rail of apron (not shown).
  • the upper deck rail 17 may be formed of a single piece.
  • the apron 42 may not be supported on the cross 17.
  • FIG. 3 shows a sectional view of the sub-bay cross member of the invention shown in FIGS. 1 and 2 according to a plane 77 (FIG. 7) located on the left side of the vehicle, on the driver's side, a distance of about 200 millimeters from its longitudinal plane of symmetry.
  • This figure shows the upper part 4 and the lower part 8 of the sub-bay crossbar 2.
  • Reinforcing ribs 10 are arranged in the interior volume defined by the cross member. As can be seen on the right side of Figure 1, the reinforcing ribs 10 have clearances 14 which allow a free space sufficient to accommodate a functional element of the vehicle.
  • the functional element is a windscreen wiper support plate 26 (see FIG. 1).
  • the upper part 4 has a cut-out 44 and the lower part 8 has a cut-out 46.
  • the cuts 44 and 46 form an opening in the generally closed section of the under-beam 2.
  • the windscreen wiper 26 has a periphery that fits tightly to the opening defined by the cutouts 44 and 46 and closes it completely. It can optionally be fixed to the ribs 10.
  • the plate 26 supports a windscreen wiper mechanism generally designated by the reference 48 and shown schematically in FIG. 3.
  • a seal 50 for example made of neoprene, is disposed over the entire periphery of the opening defined by the cutouts 44 and 46 in order to seal with the plate 26.
  • the sub-bay cross member of the invention 2 can be attached to the top rail of the deck by any suitable means.
  • the lower part of the crossmember 2 comprises pre-holding means 52 which engage in corresponding openings formed in the upper part 18 of the upper deck crosspiece 17.
  • the means 52 make it possible to hold the crossmember in position. position during the drying of the glue 54 disposed between the lower portion 8 of the cross member and the upper part 18 of the upper rail crossbar 17.
  • the premaintening means are formed of clips 52. Any other means of fixing, for example rivets, would be possible.
  • FIG. 5 a partial perspective view of the body of a motor vehicle on which is mounted a sub-bay beam 2 according to the invention.
  • the longitudinal, transverse and vertical directions have been identified in this figure by a trirectangular trihedron L, T, V.
  • the inserts 16, mounted at the left and right ends of the cross member 2 can be fixed to the liners 56 of the front legs left and right of the vehicle (only the left end of the crossbar has been shown in Figure 5).
  • the wheel arches 58 of the vehicle as well as the apron 42 having an orifice of passage 43 for mechanical members not shown.
  • the wiper mechanism support plate 26 and the axes 60 of support of the wiper blades 1 is integrated in the sub-bay sleeper.
  • FIG. 6 There is shown in Figure 6 an alternative embodiment in which the water box 135 is reported.
  • the lower part 8 of the crosspiece has an opening 62 and the water box attached an opening 64 of the same shape as the opening 62.
  • the openings 62 and 64 are superimposed so as to allow the admission of outside air inside the cross, and then in the passenger compartment of the motor vehicle.
  • the evacuation tube 22 comprises a nozzle 70 which makes it possible to evacuate the water collected in the water box outside the vehicle. This tip is generally fixed on a corresponding fitting provided in the apron 42.
  • FIG. 7 is a top view of the front part of a motor vehicle comprising a cross member 2 equipped with the added water box 135 shown in FIG. 6.
  • the inlet 72 of the tube of FIG. water evacuation 22 Also note the liners front left and right to which the inserts 16 of the cross member are fixed by spot welding or laser.
  • the plane 77 located at a distance of about 200 millimeters from the plane 74.
  • the plane 77 passes through one of the wiper blade support axes 60 of the windscreen wiper mechanism supported by the plate 26.
  • FIG. 8 shows an external perspective view of the sub-bay crossmember 2 of FIGS. 6 and 7.
  • This figure shows, in particular, reinforcement ribs 80 disposed at the left and right ends of the cross member, under the plane face. 82 of the lower part 8.
  • These ribs made of plastic and which can be reported or made in one piece with the lower part 8, allow by a ribbing of the cross member to ensure shock behavior by a passage of efforts in this area.

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

Abstract

The cross member extending under the windshield aperture for a motor vehicle comprises a part for supporting a lower edge (30) of a windshield (32) of the vehicle. This cross member is made of a plastic material, optionally reinforced by glass fibers and comprises reinforcing ribs (10) located in the cross section thereof and integrated in the cross member. The cross member can be provided in the form of an upper part (4) and of a lower part (8) that are assembled together. Said reinforcing ribs are integrated in the upper part and/or the lower part or are provided in the form of a single part including the reinforcing ribs. The cross member is advantageously molded by injection.

Description

TRAVERSE SOUS-BAIE POUR ON VEHICULE AUTOMOBILE TRAVERSE SUB-BAY FOR ON MOTOR VEHICLE
DESCRIPTIONDESCRIPTION
Une traverse sous-baie de véhicule automobile est une traverse disposée entre les pieds avant gauche et droit du véhicule et qui a pour fonction, notamment, de soutenir le rebord inférieur du pare-brise.An under-bay cross member of a motor vehicle is a cross member disposed between the front left and right legs of the vehicle and whose function is, in particular, to support the lower rim of the windshield.
Les structures sous-baie des véhicules actuellement connus sont constituées d'une traverse inférieure de baie en acier reliée à une cloison en tôle d'acier qui sépare l'habitacle du véhicule de son compartiment moteur. Elle comporte des renforts intérieurs, également réalisés en acier, et assemblés par soudage. Ces traverses connues posent des problèmes de comportement vibratoire qui sont résolus par l'adjonction de pièces supplémentaires telles que des pontets et des renforts. Cependant, ces renforts sont en acier ce qui pose des problèmes de corrosion qui nécessitent le masticage des liaisons entre les pièces et l'emploi de tôles en acier spécifique plus coûteux, par exemple des tôles revêtues d'un revêtement organique mince.The under-bay structures of the vehicles currently known consist of a lower steel bay rail connected to a sheet steel partition which separates the passenger compartment of the vehicle from its engine compartment. It includes internal reinforcements, also made of steel, and assembled by welding. These known sleepers pose problems of vibration behavior which are solved by the addition of additional parts such as bridges and reinforcements. However, these reinforcements are made of steel which poses corrosion problems which require the bonding of the connections between the parts and the use of more expensive specific steel sheets, for example sheets coated with a thin organic coating.
D'autre part, la traverse constitue une structure ouverte et peu rigide avec la cloison de chauffage à laquelle elle est soudée.On the other hand, the cross member is an open structure and not rigid with the heating partition to which it is welded.
En outre, la traverse inférieure de baie présente une section trop faible pour qu'il soit possible d'y loger plusieurs équipements. Le volume occupé par cette traverse n'est donc pas optimisé. La présente invention a pour objet une traverse sous-baie pour un véhicule automobile qui remédie à ces inconvénients. Ces buts sont atteints par le fait que la traverse est réalisée en matière plastique, éventuellement renforcée de fibres de verre et par le fait qu'elle comporte des nervures de renfort disposées dans sa section transversale et intégrées à la traverse.In addition, the lower cross bay has a section too small for it to be possible to house several equipment. The volume occupied by this cross is not optimized. The present invention relates to a sub-bay cross member for a motor vehicle that overcomes these disadvantages. These objects are achieved by the fact that the cross member is made of plastic, optionally reinforced with glass fibers and that it comprises reinforcing ribs disposed in its cross section and integrated into the cross member.
La traverse peut être réalisée en une partie supérieure et une partie inférieure assemblées l'une à l'autre, les nervures de renfort étant intégrées à la partie supérieure et/ ou à la partie inférieure. Dans une autre réalisation, la traverse est réalisée en une seule partie, y compris les nervures de renfort.The crossmember can be made in an upper part and a lower part assembled to each other, the reinforcing ribs being integrated in the upper part and / or the lower part. In another embodiment, the crossbar is made in one part, including the reinforcing ribs.
Grâce à ces caractéristiques, les problèmes de résistance mécanique et les problèmes vibratoires sont résolus sans nécessité de recourir à des aciers spéciaux et sans nécessité de mastiquer les joints entre les nervures et les parties constitutives de la traverse.Thanks to these characteristics, the problems of mechanical strength and vibration problems are solved without the need for special steels and without the need to seal the joints between the ribs and the constituent parts of the crossbar.
Avantageusement, la traverse comporte des inserts métalliques surmoulés ou collés constituant des pattes de fixation pour la fixer aux doublures des pieds avant du véhicule.Advantageously, the crossmember comprises overmolded or glued metal inserts constituting fixing lugs to attach it to the liners of the front feet of the vehicle.
Dans une réalisation préférée, elle possède au moins une partie de section transversale suffisamment grande pour permettre d'y loger au moins un élément fonctionnel du véhicule, notamment une boîte à eau et/ou un mécanisme de support et d'entraînement des balais d'essuie-vitre. De préférence les éléments fonctionnels sont prévus dans des zones séparées selon la longueur de la traverse.In a preferred embodiment, it has at least a portion of cross section large enough to accommodate thereon at least one functional element of the vehicle, including a water box and / or a mechanism for supporting and driving the brushes. wiper. Preferably, the functional elements are provided in zones separated according to the length of the crossmember.
Des caractéristiques complémentaires ou alternatives de l'invention sont énumérées ci-après : la traverse comporte une cloison longitudinale de partition séparant la boîte à eau d'une paroi de la traverse délimitant l'habitacle du véhicule ; - des nervures de renfort présentent des dégagements pour recevoir les éléments fonctionnels ;Complementary or alternative features of the invention are listed below: the crosspiece comprises a longitudinal partition wall separating the water box from a wall of the cross member defining the passenger compartment of the vehicle; - Reinforcing ribs have clearances to receive the functional elements;
- certaines nervures de renfort servent de support à des éléments fonctionnels ;- Some reinforcing ribs serve as support for functional elements;
- la traverse est fixée par collage sur une traverse supérieure de tablier du véhicule ; la traverse comporte des clips de fixation à la traverse supérieure du tablier permettant de la maintenir provisoirement en position sur celle- ci ; - la traverse possède des nervures de renforcement prévues à ses extrémités gauche et droite sous sa partie inférieure afin d'améliorer la résistance au choc ;- The cross is fixed by gluing on an upper rail of the vehicle deck; the crossmember has fastening clips to the upper rail of the apron to maintain it temporarily in position thereon; - The cross has reinforcing ribs provided at its left and right ends under its lower part to improve the impact resistance;
- la traverse possède une boîte à eau rapportée ou intégrée à la traverse.- The cross has a water box reported or integrated into the cross.
D'autres caractéristiques et avantages deOther features and benefits of
1'invention apparaîtront encore à la lecture de la description qui suit d'exemples de réalisation donnés à titre illustratif en référence aux figures annexées. Sur ces figures : - la figure 1 est une vue en perspective éclatée d'une traverse sous-baie conforme à la présente invention ;The invention will become apparent upon reading the following description of exemplary embodiments given by way of illustration with reference to the appended figures. In these figures: - Figure 1 is an exploded perspective view of a sub-bay cross member according to the present invention;
- la figure 2 est une vue en coupe de la traverse représentée sur la figure 1 selon le plan II-FIG. 2 is a sectional view of the cross-member shown in FIG. 1 along plane II;
II de la figure 7 passant sensiblement par le milieu du siège passager ;II of Figure 7 passing substantially through the middle of the passenger seat;
- la figure 3 est une vue en coupe de la traverse représentée sur la figure 1 par un plan III- III de la figure 7 situé du côté du conducteur du véhicule ;- Figure 3 is a sectional view of the cross member shown in Figure 1 by a plane III-III of Figure 7 located on the driver's side of the vehicle;
- la figure 4 est une vue de détail d'un clip de fixation à la traverse supérieure de tablier ;- Figure 4 is a detail view of a fastening clip to the upper rail of apron;
- la figure 5 est une vue partielle en perspective montrant la fixation de la traverse à la doublure du pied avant gauche du châssis d'un véhicule automobile ;- Figure 5 is a partial perspective view showing the attachment of the cross member to the lining of the left front leg of the chassis of a motor vehicle;
- la figure 6 est une vue en perspective d'une traverse conforme à l'invention comportant une boîte à eau rapportée ;- Figure 6 is a perspective view of a cross member according to the invention comprising a reported water box;
- la figure 7 est une vue de dessus de la traverse représentée sur la figure 6 ;- Figure 7 is a top view of the cross member shown in Figure 6;
- la figure 8 est une vue de dessous en perspective de la traverse représentée sur les figures 6 est 7.FIG. 8 is a perspective bottom view of the cross member shown in FIGS. 6 and 7.
Sur la figure 1, la traverse sous-baie de l'invention, désignée par la référence générale 2, est constituée d'une partie supérieure 4 et d'une partie inférieure 8 ainsi que de nervures de renfort 10 disposées dans le volume intérieur défini par les parties supérieure 4 et inférieure 8. Les nervures 10 ne sont pas toutes identiques les unes aux autres. Certaines, comme la nervure située la plus à gauche sur la figure 1, sont pleines. D'autres comportent des évidements centraux 12. D'autres encore (partie droite de la figure 1) comportent des dégagements 14 destinés à recevoir un élément fonctionnel du véhicule, comme on l'expliquera plus en détail ultérieurement.In FIG. 1, the sub-bay cross member of the invention, designated by the general reference 2, consists of an upper part 4 and a lower part 8 as well as reinforcing ribs 10 arranged in the defined internal volume by the upper parts 4 and lower 8. The ribs 10 are not all identical to each other. Some, like the leftmost rib in Figure 1, are full. Others have central recesses 12. Still others (right part of Figure 1) have clearances 14 for receiving a functional element of the vehicle, as will be explained in more detail later.
Les parties 4 et 8, ainsi que les nervures de renforcement 10 sont réalisées en matière plastique éventuellement renforcée de fibres de verre. A titre d'exemple non limitatif, ils peuvent être réalisés en un matériau plastique thermodurcissable ou en une matière plastique thermoplastique, par exemple I1AMCParts 4 and 8, as well as the reinforcing ribs 10 are made of plastic optionally reinforced with glass fibers. By way of nonlimiting example, they may be made of a thermosetting plastic material or a thermoplastic plastic material, for example I 1 AMC
(résine thermo durcissable à base de polyester renforcée de fibres de verre) ou le PA 66 GF30 (résine thermoplastique à base polyamide renforcée de 30% de fibres de verre) . Les nervures sont intégrées soit à la partie supérieure, soit à la partie inférieure. On peut également envisager que certaines des nervures soient intégrées à la partie supérieure, tandis que les autres sont intégrées à la partie inférieure. La traverse 2 constitue ainsi un volume fermé présentant une grande rigidité. Grâce à l'utilisation de matière plastique, on élimine les problèmes de corrosion que l'on rencontre dans les traverses inférieures de baie de l'art antérieur réalisées en acier. La présence des nervures donne également de la rigidité à l'ensemble et permet d'éviter les problèmes de vibration.(heat-curable resin based on polyester reinforced with glass fibers) or PA 66 GF30 (thermoplastic resin based on polyamide reinforced with 30% glass fibers). The ribs are integrated either at the top or at the bottom. It is also possible that some of the ribs are integrated in the upper part, while the others are integrated in the lower part. The crossbar 2 thus constitutes a closed volume having a high rigidity. Through the use of plastic material, the corrosion problems encountered in prior art steel bottom sleepers are eliminated. The presence of ribs also gives rigidity to the assembly and avoids vibration problems.
Afin de permettre la fixation de la traverse 2 sur la structure du véhicule, et plus particulièrement sur les doublures des pieds avant du véhicule, des inserts 16 en acier sont prévus à chacune des extrémités de la traverse. Les inserts 16 peuvent être assemblés aux parties 4 et 8 de diverses manières, notamment par collage. Ils peuvent également être surmoulés. Lorsqu'elle est assemblée dans le véhicule, la traverse sous-baie 2 prend appui sur une traverse supérieure de tablier constituée d'une partie supérieure 18 est d'une partie inférieure 20.In order to allow the fixing of the cross member 2 on the vehicle structure, and more particularly on the linings of the front feet of the vehicle, steel inserts 16 are provided at each end of the cross. The inserts 16 can be assembled to the parts 4 and 8 in various ways, in particular by gluing. They can also be overmolded. When it is assembled in the vehicle, the sub-beam 2 is supported on an upper deck rail consisting of an upper portion 18 is a lower portion 20.
Conformément à une caractéristique de l'invention, la section transversale de la traverse est suffisamment grande pour qu'il soit possible d'y recevoir des éléments fonctionnels du véhicule. Dans l'exemple représenté, la traverse comprend une boîte à eau intégrée 22 comportant un tube 24 d'évacuation de l'eau et une platine support d'essuie- vitre 26.According to a feature of the invention, the cross section of the cross member is large enough that it is possible to receive functional elements of the vehicle. In the example shown, the crossmember comprises an integrated water box 22 comprising a water discharge tube 24 and a windscreen wiper support plate 26.
En outre, un trou 28 de section sensiblement rectangulaire est prévu dans la partie inférieure 8 de manière à permettre le passage de l'air aspiré à l'extérieur du véhicule vers l'habitacle. On a représenté sur la figure 2 une vue en section transversale de la traverse représentée sur la figure 1 par un plan 76 (voir figure 7) passant par le centre de la boîte à eau 22 c'est-à-dire, en d'autres termes, sensiblement par le centre du tube d'évacuation 22. L'extrémité inférieure 30 du pare brise 32 prend appui sur la partie supérieure 4 de la traverse sous baie 2. Une grille d'auvent 34 prend appui à l'une de ses extrémités sur l'extrémité inférieure 30 du pare brise 32 et à son autre extrémité sur la partie inférieure 8 de la traverse sous baie. La grille l'In addition, a hole 28 of substantially rectangular section is provided in the lower part 8 so as to allow the passage of air drawn to the outside of the vehicle to the passenger compartment. FIG. 2 shows a cross-sectional view of the crossbar shown in FIG. 1 by a plane 76 (see FIG. 7) passing through the center of the water box 22, that is to say other words, substantially through the center of the discharge tube 22. The lower end 30 of the windshield 32 is supported on the upper portion 4 of the crossbar bay 2. A canopy grill 34 is supported by one of its ends on the lower end 30 of the windshield 32 and at its other end on the lower part 8 of the crossbar bay. Grid the
d'auvent 34 permet l'admission d'air extérieur dans l'habitacle du véhicule.canopy 34 allows the intake of outside air in the passenger compartment of the vehicle.
La boîte à eau 35 intégrée à la traverse a pour fonction de recueillir l'eau de pluie qui ruisselle le long du pare brise 32. Elle est délimité par une paroi extérieure 36 de la partie inférieure 8 de la traverse et par une cloison de partition 38. La cloison 38 permet d'éviter le contact de l'eau avec une cloison de chauffage 40 disposée en regard d'un groupe de climatisation et de chauffage (non représenté) disposé dans l'habitacle au niveau de la boîte à eau. L'eau recueillie dans la boîte à eau est évacuée par le tube 22 dont l'extrémité est ouverte. Cette extrémité ouverte n'apparaît pas dans le plan de coupe parce qu'elle est située en dehors de ce plan. On note également la présence de l'ouverture sensiblement rectangulaire 28 (voir figure 1) permettant l'admission de l'air dans l'habitacle.The water box 35 integrated in the crosspiece has the function of collecting the rainwater flowing along the windshield 32. It is delimited by an outer wall 36 of the lower part 8 of the cross and a partition wall 38. The partition 38 avoids the contact of water with a heating partition 40 disposed opposite an air conditioning and heating unit (not shown) disposed in the passenger compartment at the water box. The water collected in the water box is discharged through the tube 22 whose end is open. This open end does not appear in the section plane because it is located outside this plane. Note also the presence of the substantially rectangular opening 28 (see Figure 1) for admission of air into the passenger compartment.
La traverse 2 repose sur une traverse supérieure de tablier 17 constituée d'une partie supérieure 18 et d'une partie inférieure 20 en acier assemblées par soudage. Un tablier 42 sépare l'habitacle du compartiment moteur. Le tablier 42 prend appui à sa partie supérieure, sur la traverse supérieure de tablier 17, et sa partie inférieure sur une traverse inférieure de tablier (non représentée) .The cross member 2 rests on an upper deck cross member 17 consisting of an upper portion 18 and a lower portion 20 made of steel welded together. An apron 42 separates the passenger compartment engine. The apron 42 is supported at its upper part, on the top rail of apron 17, and its lower part on a bottom rail of apron (not shown).
Il sera compris que cet agencement est présenté à titre d'exemple, et que sans sortir du contexte de invention, la traverse supérieure de tablier 17 peut être formée d'une pièce unique. De même, le tablier 42 peut ne pas prendre appui sur la traverse 17.It will be understood that this arrangement is presented by way of example, and that without departing from the context of the invention, the upper deck rail 17 may be formed of a single piece. Of even, the apron 42 may not be supported on the cross 17.
On a représenté sur la figure 3 une vue en coupe de la traverse sous-baie de l'invention représentée sur les figures 1 et 2 selon un plan 77 (figure 7) situé sur la partie gauche du véhicule, du côté du conducteur, à une distance de 200 millimètres environ de son plan de symétrie longitudinal. On retrouve sur cette figure la partie supérieure 4 et la partie inférieure 8 de la traverse sous-baie 2. Des nervures de renforts 10 sont disposées dans le volume intérieur délimité par la traverse. Comme on peut le voir sur la partie droite de la figure 1, les nervures de renfort 10 comportent des dégagements 14 qui permettent de laisser un espace libre suffisant pour loger un élément fonctionnel du véhicule. Dans l'exemple représenté, l'élément fonctionnel est une platine support d'essuie-vitre 26 (voir figure 1) . La partie supérieure 4 comporte une découpe 44 et la partie inférieure 8 une découpe 46. Lorsque les parties inférieure et supérieure sont assemblées, les découpes 44 et 46 forment une ouverture dans la section généralement fermée de la traverse sous baie 2. La platine support d'essuie-vitre 26 comporte une périphérie qui s'adapte de manière étanche à l'ouverture délimitée par les découpes 44 et 46 et qui l'obture entièrement. Elle peut éventuellement être fixée aux nervures 10. La platine 26 supporte un mécanisme d'essuie-vitre désigné généralement par la référence 48 et représenté schématiquement sur la figure 3. Un joint d'étanchéité 50, par exemple en néoprène, est disposé sur toute la périphérie de l'ouverture délimitée par les découpes 44 et 46 afin de réaliser une étanchéité avec la platine 26.FIG. 3 shows a sectional view of the sub-bay cross member of the invention shown in FIGS. 1 and 2 according to a plane 77 (FIG. 7) located on the left side of the vehicle, on the driver's side, a distance of about 200 millimeters from its longitudinal plane of symmetry. This figure shows the upper part 4 and the lower part 8 of the sub-bay crossbar 2. Reinforcing ribs 10 are arranged in the interior volume defined by the cross member. As can be seen on the right side of Figure 1, the reinforcing ribs 10 have clearances 14 which allow a free space sufficient to accommodate a functional element of the vehicle. In the example shown, the functional element is a windscreen wiper support plate 26 (see FIG. 1). The upper part 4 has a cut-out 44 and the lower part 8 has a cut-out 46. When the lower and upper parts are assembled, the cuts 44 and 46 form an opening in the generally closed section of the under-beam 2. The support plate The windscreen wiper 26 has a periphery that fits tightly to the opening defined by the cutouts 44 and 46 and closes it completely. It can optionally be fixed to the ribs 10. The plate 26 supports a windscreen wiper mechanism generally designated by the reference 48 and shown schematically in FIG. 3. A seal 50, for example made of neoprene, is disposed over the entire periphery of the opening defined by the cutouts 44 and 46 in order to seal with the plate 26.
La traverse sous-baie de l'invention 2 peut être fixée à la traverse supérieure de tablier par tout moyen approprié. Dans l'exemple représenté elle est collée à cette traverse. De manière avantageuse, la partie inférieure de la traverse 2 comporte des moyens de pré-maintien 52 qui s'engagent dans des ouvertures correspondantes formées dans la partie supérieure 18 de la traverse supérieure de tablier 17. Les moyens 52 permettent de maintenir la traverse en position pendant le séchage de la colle 54 disposée entre la partie inférieure 8 de la traverse et la partie supérieure 18 de la traverse supérieure de tablier 17. A titre d'exemple, les moyens de prémaintien sont formés de clips 52. Tout autre moyen de fixation, par exemple des rivets, serait envisageable.The sub-bay cross member of the invention 2 can be attached to the top rail of the deck by any suitable means. In the example shown it is glued to this cross. Advantageously, the lower part of the crossmember 2 comprises pre-holding means 52 which engage in corresponding openings formed in the upper part 18 of the upper deck crosspiece 17. The means 52 make it possible to hold the crossmember in position. position during the drying of the glue 54 disposed between the lower portion 8 of the cross member and the upper part 18 of the upper rail crossbar 17. By way of example, the premaintening means are formed of clips 52. Any other means of fixing, for example rivets, would be possible.
On a représenté sur la figure 5 une vue partielle en perspective de la carrosserie d'un véhicule automobile sur laquelle est montée une traverse sous-baie 2 conforme à l'invention. Sur cette figure les directions longitudinale, transversale et verticale ont été repérées sur cette figure par un trièdre trirectangle L, T, V. Les inserts 16, montés aux extrémités gauche et droite de la traverse 2 permettent de la fixer aux doublures 56 des pieds avant gauche et droit du véhicule (seul l'extrémité gauche de la traverse a été représentée sur la figure 5) . On remarque également les passages de roues 58 du véhicule ainsi que le tablier 42 comportant un orifice de passage 43 pour des organes mécaniques non représentés. On note également la présence de la platine support de mécanisme essuie-vitre 26 ainsi que les axes 60 de support des balais d1essuie-glace. Dans la variante de réalisation des figures 1 à 5, la boîte a eau 35 est intégrée à la traverse sous-baie.There is shown in Figure 5 a partial perspective view of the body of a motor vehicle on which is mounted a sub-bay beam 2 according to the invention. In this figure the longitudinal, transverse and vertical directions have been identified in this figure by a trirectangular trihedron L, T, V. The inserts 16, mounted at the left and right ends of the cross member 2 can be fixed to the liners 56 of the front legs left and right of the vehicle (only the left end of the crossbar has been shown in Figure 5). We also note the wheel arches 58 of the vehicle as well as the apron 42 having an orifice of passage 43 for mechanical members not shown. Note also the presence of the wiper mechanism support plate 26 and the axes 60 of support of the wiper blades 1 . In the alternative embodiment of Figures 1 to 5, the water box 35 is integrated in the sub-bay sleeper.
On a représenté sur la figure 6 une variante de réalisation dans laquelle la boîte à eau 135 est rapportée. Dans cette variante, la partie inférieure 8 de la traverse comporte une ouverture 62 et la boîte à eau rapportée une ouverture 64 de même forme que l'ouverture 62. Lorsque la boîte à eau 135 est fixée à la partie antérieure de la traverse, les ouvertures 62 et 64 se superposent de manière à permettre l'admission de l'air extérieur à l'intérieur de la traverse, puis dans l'habitacle du véhicule automobile. Le tube d'évacuation 22 comporte un embout 70 qui permet d'évacuer l'eau recueillie dans la boîte à eau à l'extérieur du véhicule. Cet embout est généralement fixé sur un raccord correspondant prévu dans le tablier 42.There is shown in Figure 6 an alternative embodiment in which the water box 135 is reported. In this variant, the lower part 8 of the crosspiece has an opening 62 and the water box attached an opening 64 of the same shape as the opening 62. When the water box 135 is fixed to the front part of the cross member, the openings 62 and 64 are superimposed so as to allow the admission of outside air inside the cross, and then in the passenger compartment of the motor vehicle. The evacuation tube 22 comprises a nozzle 70 which makes it possible to evacuate the water collected in the water box outside the vehicle. This tip is generally fixed on a corresponding fitting provided in the apron 42.
On a représenté la figure 7 une vue de dessus de la partie antérieure d'un véhicule automobile comportant une traverse 2 équipée de la boîte à eau rapportée 135 représentée sur la figure 6. On remarque sur cette figure l'entrée 72 du tube d'évacuation d'eau 22. On note également les doublures de pieds avant gauche et droit auxquels les inserts 16 de la traverse sont fixés par soudage par points ou par laser. On notera également le plan de symétrie 74 du véhicule, ainsi que le plan 76 situé à une distance de 350 millimètres du plan 74 et passant par le centre sensiblement, de l'orifice d'évacuation 72 de la boîte à eau 135. A droite du plan de symétrie 74 (selon la figure 7), c'est-à-dire du côté du conducteur, on trouve le plan 77, situé à une distance d'environ 200 millimètres du plan 74. Le plan 77 passe par l'un des axes 60 de support de balai d'essuie-glace du mécanisme essuie-vitre supporté par la platine 26.FIG. 7 is a top view of the front part of a motor vehicle comprising a cross member 2 equipped with the added water box 135 shown in FIG. 6. In this figure, the inlet 72 of the tube of FIG. water evacuation 22. Also note the liners front left and right to which the inserts 16 of the cross member are fixed by spot welding or laser. Note also the plane of symmetry 74 of the vehicle, as well as the plane 76 located at a distance of 350 millimeters from the plane 74 and passing through the center substantially, the discharge orifice 72 of the water box 135. To the right of the plane of symmetry 74 (according to Figure 7), that is to say on the side of the conductor, there is the plane 77, located at a distance of about 200 millimeters from the plane 74. The plane 77 passes through one of the wiper blade support axes 60 of the windscreen wiper mechanism supported by the plate 26.
On a représenté sur la figure 8, une vue extérieure en perspective de la traverse sous-baie 2 des figures 6 et 7. Cette figure montre en particulier des nervures de renforcements 80 disposées aux extrémités gauche et droite de la traverse, sous la face plane 82 de la partie inférieure 8. Ces nervures, réalisées en matière plastique et qui peuvent être rapportées ou réalisées d'une seule pièce avec la partie inférieure 8, permettent par un nervurage de la traverse d'assurer un comportement en choc par un passage des efforts dans cette zone. FIG. 8 shows an external perspective view of the sub-bay crossmember 2 of FIGS. 6 and 7. This figure shows, in particular, reinforcement ribs 80 disposed at the left and right ends of the cross member, under the plane face. 82 of the lower part 8. These ribs, made of plastic and which can be reported or made in one piece with the lower part 8, allow by a ribbing of the cross member to ensure shock behavior by a passage of efforts in this area.

Claims

REVENDICATIONS
1. Traverse sous-baie pour un véhicule automobile, comportant une partie de support d'un bord inférieur (30) d'un pare-brise (32) du véhicule, caractérisée en ce qu'elle est réalisée en matière plastique, éventuellement renforcée de fibres de verre et en ce qu'elle comporte des nervures de renfort (10) disposées dans sa section transversale et intégrées à la traverse. 1. Underbay cross member for a motor vehicle, comprising a support portion of a lower edge (30) of a windshield (32) of the vehicle, characterized in that it is made of plastic, possibly reinforced fiberglass and in that it comprises reinforcing ribs (10) arranged in its cross section and integrated into the cross member.
2. Traverse sous baie selon la revendication 1, caractérisée en ce qu'elle est réalisée en une partie supérieure (4) et une partie inférieure (8) assemblées l'une à l'autre, les nervures de renfort étant intégrées à la partie supérieure et/ou à la partie inférieure.2. Traverse bay according to claim 1, characterized in that it is formed in an upper portion (4) and a lower portion (8) assembled to one another, the reinforcing ribs being integrated into the part upper and / or lower part.
3. Traverse sous baie selon la revendication 1, caractérisée en ce qu'elle est réalisée en une seule partie y compris les nervures de renfort. 3. Traverse bay according to claim 1, characterized in that it is made in a single part including the reinforcing ribs.
4. Traverse sous baie selon l'une des revendications 1 à 3, caractérisée en ce qu'elle est réalisée par moulage par injection.4. Traverse under bay according to one of claims 1 to 3, characterized in that it is carried out by injection molding.
5. Traverse sous baie selon l'une des revendications 1 à 4, caractérisée en ce que la matière plastique est choisie dans le groupe comprenant les matières plastiques thermodurcissables et les matières plastiques thermoplastiques.5. Traverse bay according to one of claims 1 to 4, characterized in that the plastic material is selected from the group consisting of thermosetting plastics and thermoplastic plastics.
6. Traverse sous baie selon l'une des revendications 1 à 5, caractérisée en ce qu'elle possède une section transversale généralement fermée. 6. Traverse bay according to one of claims 1 to 5, characterized in that it has a generally closed cross section.
7. Traverse sous baie selon l'une des revendications 1 à 6, caractérisée en ce qu'elle comporte des inserts métalliques (16) surmoulés ou collés constituant des pattes de fixation pour fixer la traverse (2) aux doublures des pieds avant du véhicule.7. Traverse bay according to one of claims 1 to 6, characterized in that it comprises molded or bonded metal inserts (16) constituting fixing lugs for fixing the cross member (2) to the liners of the front feet of the vehicle .
8. Traverse sous baie selon l'une des revendications 1 à 7, caractérisée en ce qu'elle possède au moins une partie de section transversale suffisamment grande pour permettre d'y loger un élément fonctionnel (26, 48) du véhicule, notamment une boîte à eau et/ou un mécanisme de support et d'entraînement de balais d'essuie-vitre.8. Traverse bay according to one of claims 1 to 7, characterized in that it has at least a portion of sufficiently large cross section to allow to accommodate a functional element (26, 48) of the vehicle, including a water box and / or a mechanism for supporting and driving windscreen wiper blades.
9. Traverse sous baie selon la revendication 8, caractérisée en ce que les éléments fonctionnels sont prévus dans des zones séparées selon la longueur de la traverse (2) .9. Traverse bay according to claim 8, characterized in that the functional elements are provided in separate areas along the length of the crossbar (2).
10. Traverse sous baie selon la revendication 8 ou 9, caractérisée en ce qu'elle comporte une cloison longitudinale (38) de partition séparant la boîte à eau d'une paroi (40) de la traverse (2) délimitant l'habitacle du véhicule.10. Traverse under bay according to claim 8 or 9, characterized in that it comprises a longitudinal partition (38) of partition separating the water box of a wall (40) of the cross member (2) defining the passenger compartment of the vehicle.
11. Traverse sous baie selon l'une des revendications 8 à 10, caractérisée en ce que les nervures de renfort (10) présentent des dégagements (14) pour recevoir les éléments fonctionnels.11. Traverse bay according to one of claims 8 to 10, characterized in that the reinforcing ribs (10) have recesses (14) for receiving the functional elements.
12. Traverse sous baie selon l'une des revendications 8 à 11, caractérisée en ce que certaines nervures de renfort (10) servent de support à des éléments fonctionnels (48). 12. Traverse bay according to one of claims 8 to 11, characterized in that some reinforcing ribs (10) serve as support for functional elements (48).
13. Traverse sous baie selon l'une des revendications 1 à 10, caractérisée en ce qu'elle est fixée par collage sur une traverse supérieure de tablier (17) .13. Traverse under bay according to one of claims 1 to 10, characterized in that it is fixed by gluing on an upper deck rail (17).
14. Traverse sous baie selon la revendication 13, caractérisée en ce qu'elle comporte des moyens de prémaintien (52) à la traverse supérieure de tablier (17) permettant de la maintenir provisoirement en position sur celle-ci.14. Traverse bay according to claim 13, characterized in that it comprises premaintening means (52) to the upper rail deck (17) to maintain temporarily in position thereon.
15. Traverse sous baie selon l'une des revendications 1 à 14, caractérisée en ce qu'elle possède des nervures de renforcement (80) prévues à ses extrémités gauche et droite sous sa partie inférieure (8) .15. Traverse under bay according to one of claims 1 to 14, characterized in that it has reinforcing ribs (80) provided at its left and right ends under its lower part (8).
16. Traverse sous baie selon l'une des revendications 1 à 15, caractérisée en ce qu'elle possède une boîte à eau (135) rapportée.16. Traverse bay according to one of claims 1 to 15, characterized in that it has a water box (135) reported.
17. Traverse sous baie selon l'une des revendications 1 à 15, caractérisée en ce qu'elle possède une boîte à eau (35) intégrée. 17. Traverse bay according to one of claims 1 to 15, characterized in that it has an integrated water box (35).
PCT/FR2005/050592 2004-09-02 2005-07-18 Cross member extending under the windshield aperture for a motor vehicle WO2006027508A1 (en)

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FR0451955 2004-09-02
FR0451955A FR2874577B1 (en) 2004-09-02 2004-09-02 TRAVELSE SUB-BAY FOR A MOTOR VEHICLE

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DE102011012531A1 (en) * 2011-02-26 2012-08-30 Gm Global Technology Operations, Inc. Chassis for motor vehicle e.g. motor car, has cross arm with front edge and rear edge are combined in between spacing is reduced under specific pressure of windshield
CN104114414A (en) * 2012-02-13 2014-10-22 雷诺股份公司 Motor vehicle arrangement having a three-element water box
DE102011110969B4 (en) * 2010-08-03 2015-04-09 Mazda Motor Corp. Carrier structure of a windshield

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Publication number Priority date Publication date Assignee Title
WO2006059049A1 (en) * 2004-12-03 2006-06-08 Renault S.A.S Cross-member for supporting the windshield of a motor vehicle
DE102011110969B4 (en) * 2010-08-03 2015-04-09 Mazda Motor Corp. Carrier structure of a windshield
DE102011012531A1 (en) * 2011-02-26 2012-08-30 Gm Global Technology Operations, Inc. Chassis for motor vehicle e.g. motor car, has cross arm with front edge and rear edge are combined in between spacing is reduced under specific pressure of windshield
CN104114414A (en) * 2012-02-13 2014-10-22 雷诺股份公司 Motor vehicle arrangement having a three-element water box
CN104114414B (en) * 2012-02-13 2016-12-28 雷诺股份公司 There is the motor vehicles arrangement of three-member type water tank

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FR2874577A1 (en) 2006-03-03

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