FR2935339A1 - Structure e.g. front structure, for motor vehicle, has angle plate including upper part with fixation unit that cooperates with complementary fixation unit integrated to functional element - Google Patents

Structure e.g. front structure, for motor vehicle, has angle plate including upper part with fixation unit that cooperates with complementary fixation unit integrated to functional element Download PDF

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Publication number
FR2935339A1
FR2935339A1 FR0855924A FR0855924A FR2935339A1 FR 2935339 A1 FR2935339 A1 FR 2935339A1 FR 0855924 A FR0855924 A FR 0855924A FR 0855924 A FR0855924 A FR 0855924A FR 2935339 A1 FR2935339 A1 FR 2935339A1
Authority
FR
France
Prior art keywords
spar
functional element
fixation unit
flat bearing
fastening
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.)
Pending
Application number
FR0855924A
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French (fr)
Inventor
Francois Fenal
Guillaume Brotonne
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Renault SAS
Original Assignee
Renault SAS
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 SAS filed Critical Renault SAS
Priority to FR0855924A priority Critical patent/FR2935339A1/en
Publication of FR2935339A1 publication Critical patent/FR2935339A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D21/00Understructures, i.e. chassis frame on which a vehicle body may be mounted
    • B62D21/15Understructures, 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
    • B62D21/152Front or rear frames
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D25/00Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
    • B62D25/08Front or rear portions
    • B62D25/087Luggage compartments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D65/00Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
    • B62D65/02Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components

Abstract

The structure has an aluminum rail (4) integrated to a crosspiece (6) in which a functional element (2) i.e. luggage tray, is arranged on a front chassis by an intermediary of a reinforcement unit. The reinforcement unit is a steel angle plate (10) arranged between the crosspiece and the rail. The plate comprises a support plane part (12) arranged between the crosspiece and the rail, and has an upper part (14) prolonging perpendicular to the support plane part. The upper part has a fixation unit (16) that cooperates with a complementary fixation unit integrated to the functional element.

Description

STRUCTURE DE VEHICULE AUTOMOBILE La présente invention concerne une structure de véhicule automobile, du type comportant un premier élément fonctionnel apte à être rapporté sur un élément de châssis du véhicule formé d'au moins un longeron solidaire à son extrémité d'une traverse, dans laquelle le premier élément fonctionnel est rapporté sur le châssis par l'intermédiaire d'au moins un moyen de renfort. Une telle structure est connue à titre d'exemple à la figure 1. Un bloc fonctionnel est rapporté sur un ensemble formé de longerons 104 et d'une io traverse 106. Une première équerre de fixation 108 est disposée entre le bloc avant et le plan de jonction du longeron 104 et de la traverse 106. Afin de respecter les cahiers des charges vibratoires et de sécurité, et notamment dans le cas d'utilisation de structure en aluminium, un renfort 110 est soudé sur la structure. Tel que présenté, le renfort 110 crée une zone beaucoup moins 15 compressible que le longeron 104, qui a pourtant besoin d'absorber les efforts générés par un choc frontal. En outre, la présence de plusieurs pièces de renfort impose plusieurs manipulations à l'opérateur, et complique le process d'assemblage de la structure. La présente invention se propose de répondre à ces problématiques, en 20 proposant une structure de véhicule telle qu'évoquée précédemment, caractérisé en ce que le moyen de renfort est une équerre de fixation disposée au moins en partie entre la traverse et un longeron, l'équerre de fixation comportant une partie plane d'appui disposée entre la traverse et le longeron, et une partie supérieure, prolongeant sensiblement perpendiculairement 25 l'extrémité supérieure de la partie plane d'appui, cette partie supérieure présentant des premiers moyens de fixation aptes à coopérer avec des moyens de fixation complémentaires solidaires du premier élément fonctionnel. The present invention relates to a motor vehicle structure, of the type comprising a first functional element adapted to be attached to a vehicle frame member formed of at least one spar secured to its end of a cross member, wherein the first functional element is attached to the chassis via at least one reinforcing means. Such a structure is known by way of example in FIG. 1. A functional block is attached to an assembly formed of longitudinal members 104 and a cross member 106. A first fastening bracket 108 is disposed between the front block and the plane. joining the spar 104 and the cross 106. In order to comply with the vibration and safety specifications, and in particular in the case of use of aluminum structure, a reinforcement 110 is welded to the structure. As shown, the reinforcement 110 creates a much less compressible zone than the spar 104, which nevertheless needs to absorb the forces generated by a frontal impact. In addition, the presence of several reinforcing pieces requires several manipulations to the operator, and complicates the assembly process of the structure. The present invention proposes to respond to these problems, by proposing a vehicle structure as mentioned above, characterized in that the reinforcing means is a fastening bracket disposed at least partly between the cross member and a spar, fixing bracket having a flat bearing portion disposed between the cross member and the spar, and an upper portion extending substantially perpendicularly to the upper end of the flat bearing portion, said upper portion having first suitable attachment means to cooperate with complementary fastening means integral with the first functional element.

Selon différentes caractéristiques de la présente invention : - La partie supérieure prolonge sensiblement perpendiculairement l'extrémité supérieure de la partie plane d'appui en s'étendant longitudinalement au dessus du longeron. - Le premier élément fonctionnel est apte à être rapporté sur un châssis arrière, respectivement avant, du véhicule, la partie plane d'appui de l'équerre de fixation étant disposée entre une traverse arrière, respectivement avant, et l'extrémité arrière, respectivement avant, d'un longeron, et la partie supérieure de l'équerre de fixation s'étend longitudinalement au dessus du longeron arrière, respectivement avant, de sorte que les premiers moyens de fixation sont situés en avant, respectivement en arrière du plan de jonction entre le longeron et la traverse. - Des renvois prolongent longitudinalement les bords latéraux de la partie plane d'appui, dans la direction de la partie supérieure de l'équerre de fixation. - Les longerons sont réalisés en aluminium et en ce que l'équerre de fixation est réalisée en acier. According to various features of the present invention: - The upper part extends substantially perpendicularly to the upper end of the flat bearing portion extending longitudinally above the spar. - The first functional element is adapted to be mounted on a rear frame, respectively before the vehicle, the flat bearing portion of the fastening bracket being disposed between a rear crossbar, respectively before and the rear end, respectively before, of a spar, and the upper part of the fastening bracket extends longitudinally above the rear spar, respectively before, so that the first fastening means are located forward respectively rearward of the joining plane between the spar and the crossbar. - References extend longitudinally the side edges of the flat bearing part, in the direction of the upper part of the fixing bracket. - The rails are made of aluminum and that the fixing bracket is made of steel.

L'invention porte également sur un véhicule automobile D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit pour la compréhension de laquelle on se reportera aux dessins annexés dans lesquels : - la figure 1 est une vue d'un bloc avant selon l'état de la technique ; - la figure 2 est une représentation schématique d'une structure de véhicule selon l'invention ; - la figure 3 est une représentation de l'équerre de fixation représentée à la figure 2. The invention also relates to a motor vehicle. Other characteristics and advantages of the invention will appear on reading the detailed description which follows for the understanding of which reference will be made to the appended drawings, in which: FIG. a front block according to the state of the art; FIG. 2 is a schematic representation of a vehicle structure according to the invention; FIG. 3 is a representation of the fastening bracket shown in FIG.

Dans la description qui va suivre, on adoptera à titre non limitatif une orientation longitudinale, verticale et transversale selon l'orientation traditionnellement utilisée dans l'automobile et indiquée par le trièdre L, V, T. In the following description, a longitudinal, vertical and transverse orientation will be adopted in a non-limiting manner according to the orientation conventionally used in the automobile and indicated by the trihedron L, V, T.

Tel que représenté sur la figure 2, une structure de véhicule automobile comporte de façon connue un premier élément fonctionnel 2 apte à être rapporté sur un élément de châssis du véhicule formé d'au moins un longeron 4 dont l'extrémité est solidaire d'une traverse 6. Selon l'invention, ce premier élément fonctionnel 2 est rapporté sur le châssis par l'intermédiaire d'au moins io un moyen de renfort présentant la forme d'une équerre de fixation 10. L'équerre de fixation 10 comporte une partie plane d'appui 12, et une partie supérieure 14 qui prolonge cette partie plane 12 sensiblement perpendiculairement. Cette partie supérieure 14 présente des premiers moyens de fixation 16 aptes à coopérer avec des moyens de fixation complémentaires 15 solidaires du premier élément fonctionnel 2. A titre d'exemple, non limitatif, cette partie supérieure 14 peut présenter un alésage permettant la fixation par vissage du premier élément fonctionnel 2 sur l'élément de châssis. Selon l'invention, la partie plane d'appui 12 est disposée sensiblement verticalement entre la traverse 6 et le longeron 4, dans le plan de jonction de 20 ces deux éléments. La partie supérieure 14 prolonge sensiblement perpendiculairement l'extrémité supérieure de la partie plane d'appui 12 en s'étendant longitudinalement au dessus du longeron 4. Dans le cas où la structure est une structure avant avec un longeron avant et une traverse avant, la partie supérieure 14 est ainsi orientée de sorte à s'étendre depuis le plan de 25 jonction de la traverse et du longeron vers l'arrière du véhicule, au dessus du longeron. Dans le cas non représenté où la structure est une structure arrière avec un longeron arrière et une traverse arrière, la partie supérieure 14 est ainsi orientée de sorte à s'étendre depuis le plan de jonction de la traverse et du longeron vers l'avant du véhicule, au dessus du longeron. Les moyens de fixation 16 du premier élément fonctionnel 2 sont dans tous les cas ci-dessus selon l'invention déportés en retrait du plan de jonction de la traverse 6 et du longeron 4, à l'opposé du choc, frontal ou arrière selon le cas. Le fait alors de renforcer le support de cet élément fonctionnel 2, et non le longeron 4, permet de gagner une longueur de compressibilité. Avantageusement, des renvois 18 prolongent longitudinalement les bords latéraux de la partie plane d'appui 12, dans la direction de la partie io supérieure 14 de l'équerre de fixation 10. Ces renvois 18 viennent ainsi se positionner de part et d'autre du longeron 4, transversalement, et permettent le renfort de l'équerre, afin de répondre aux contraintes vibratoires auxquels doit répondre l'élément fonctionnel 2. A titre d'exemple, un élément fonctionnel 2 pourra être un bac à bagages.As represented in FIG. 2, a motor vehicle structure comprises, in known manner, a first functional element 2 adapted to be attached to a vehicle chassis element formed of at least one spar 4 whose end is integral with a 6. According to the invention, this first functional element 2 is attached to the chassis via at least one reinforcing means in the form of a fastening bracket 10. The fastening bracket 10 has a flat support portion 12, and an upper portion 14 which extends this flat portion 12 substantially perpendicularly. This upper portion 14 has first fastening means 16 adapted to cooperate with complementary fastening means 15 secured to the first functional element 2. By way of non-limiting example, this upper portion 14 may have a bore for fastening by screwing of the first functional element 2 on the frame member. According to the invention, the flat bearing portion 12 is disposed substantially vertically between the cross member 6 and the spar 4, in the junction plane of these two elements. The upper part 14 extends substantially perpendicularly the upper end of the flat bearing portion 12 extending longitudinally above the spar 4. In the case where the structure is a front structure with a front spar and a front cross member, the The upper part 14 is thus oriented so as to extend from the plane of junction of the cross member and the spar towards the rear of the vehicle, above the spar. In the case not shown where the structure is a rear structure with a rear spar and a rear cross member, the upper portion 14 is thus oriented so as to extend from the junction plane of the cross member and the spar towards the front. vehicle, above the spar. The fastening means 16 of the first functional element 2 are in all cases above according to the invention deported back from the junction plane of the cross member 6 and the spar 4, opposite to the impact, frontal or rear according to the case. The fact then reinforcing the support of this functional element 2, not the spar 4, allows to gain a compressibility length. Advantageously, references 18 extend longitudinally the lateral edges of the flat bearing portion 12, in the direction of the upper portion 14 of the fastening bracket 10. These references 18 are thus positioned on either side of the spar 4, transversely, and allow the reinforcement of the bracket, in order to meet the vibrational constraints to which the functional element 2 must respond. For example, a functional element 2 may be a baggage bin.

15 Une telle structure de véhicule est particulièrement intéressante lorsque les longerons 4 sont réalisés en aluminium. L'équerre de fixation 10 est réalisée en acier et peut alors facilement être disposée en renfort de la structure de châssis en aluminium. Such a vehicle structure is particularly advantageous when the longitudinal members 4 are made of aluminum. The fastening bracket 10 is made of steel and can then easily be arranged in reinforcement of the aluminum frame structure.

Claims (6)

REVENDICATIONS1. Structure de véhicule automobile, du type comportant un premier élément fonctionnel (2) apte à être rapporté sur un élément de châssis du véhicule formé d'au moins un longeron (4) solidaire à son extrémité d'une traverse (6), dans laquelle le premier élément fonctionnel (2) est rapporté sur le châssis par l'intermédiaire d'au moins un moyen de renfort, caractérisé en ce que le moyen de renfort est une équerre de fixation (10) disposée au moins en partie entre la traverse (6) et un longeron (4), l'équerre de fixation (10) comportant une partie plane d'appui (12) disposée entre la traverse (6) et le longeron (4), et une partie supérieure (14), prolongeant sensiblement perpendiculairement l'extrémité supérieure de la partie plane d'appui (12), cette partie supérieure (14) présentant des premiers moyens de fixation aptes à coopérer avec des moyens de fixation complémentaires solidaires du premier élément fonctionnel (2). REVENDICATIONS1. Motor vehicle structure, of the type comprising a first functional element (2) adapted to be attached to a vehicle frame member formed of at least one longitudinal member (4) integral at its end with a cross member (6), in which the first functional element (2) is attached to the frame by means of at least one reinforcing means, characterized in that the reinforcing means is a fastening bracket (10) arranged at least partly between the cross-member ( 6) and a spar (4), the fastening bracket (10) having a flat bearing portion (12) disposed between the cross member (6) and the spar (4), and an upper portion (14), extending substantially perpendicularly the upper end of the flat bearing portion (12), this upper portion (14) having first fastening means adapted to cooperate with complementary fastening means integral with the first functional element (2). 2. Structure de véhicule selon la revendication 1, caractérisé en ce que la partie supérieure (14) prolonge sensiblement perpendiculairement l'extrémité supérieure de la partie plane d'appui (12) en s'étendant longitudinalement au dessus du longeron (4). 2. Vehicle structure according to claim 1, characterized in that the upper portion (14) extends substantially perpendicularly to the upper end of the flat bearing portion (12) extending longitudinally above the spar (4). 3. Structure de véhicule selon la revendication 2, dans laquelle le premier élément fonctionnel (2) est apte à être rapporté sur un châssis avant du véhicule, la partie plane d'appui (12) de l'équerre de fixation (10) étant disposée entre une traverse (6) avant et l'extrémité avant d'un longeron (4), caractérisé en ce que la partie supérieure (14) de l'équerre de fixation (10) s'étend longitudinalement au dessus du longeron (4) avant,de sorte que les premiers moyens de fixation sont situés en arrière du plan de jonction entre le longeron (4) et la traverse (6). 3. Vehicle structure according to claim 2, wherein the first functional element (2) is adapted to be attached to a front frame of the vehicle, the flat bearing portion (12) of the fastening bracket (10) being arranged between a front crossbar (6) and the front end of a spar (4), characterized in that the upper part (14) of the fastening bracket (10) extends longitudinally above the spar (4). ) before, so that the first fastening means are located behind the junction plane between the spar (4) and the cross member (6). 4. Structure de véhicule selon la revendication 2, dans laquelle le premier élément fonctionnel (2) est apte à être rapporté sur un châssis arrière du véhicule, la partie plane d'appui (12) de l'équerre de fixation (10) étant disposée entre une traverse (6) arrière et l'extrémité arrière d'un longeron (4), caractérisé en ce que la partie supérieure (14) de l'équerre de fixation (10) s'étend longitudinalement au dessus du longeron (4) io arrière, de sorte que les premiers moyens de fixation sont situés en avant du plan de jonction entre le longeron (4) et la traverse (6). 4. Vehicle structure according to claim 2, wherein the first functional element (2) is adapted to be attached to a rear frame of the vehicle, the flat bearing portion (12) of the fastening bracket (10) being arranged between a rear crossmember (6) and the rear end of a spar (4), characterized in that the upper part (14) of the fastening bracket (10) extends longitudinally above the spar (4). rearward, so that the first fastening means are located in front of the junction plane between the spar (4) and the crossbar (6). 5. Structure de véhicule selon la revendication 1, caractérisé en ce que des renvois (18) prolongent longitudinalement les bords latéraux de la 15 partie plane d'appui (12), dans la direction de la partie supérieure (14) de l'équerre de fixation (10). 5. Vehicle structure according to claim 1, characterized in that references (18) longitudinally extend the lateral edges of the flat bearing part (12) in the direction of the upper part (14) of the square. fixing (10). 6. Structure de véhicule selon l'une des revendications précédentes, caractérisé en ce que les longerons (4) sont réalisés en aluminium et en 20 ce que l'équerre de fixation (10) est réalisée en acier. 6. Vehicle structure according to one of the preceding claims, characterized in that the longitudinal members (4) are made of aluminum and in that the bracket (10) is made of steel.
FR0855924A 2008-09-04 2008-09-04 Structure e.g. front structure, for motor vehicle, has angle plate including upper part with fixation unit that cooperates with complementary fixation unit integrated to functional element Pending FR2935339A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR0855924A FR2935339A1 (en) 2008-09-04 2008-09-04 Structure e.g. front structure, for motor vehicle, has angle plate including upper part with fixation unit that cooperates with complementary fixation unit integrated to functional element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0855924A FR2935339A1 (en) 2008-09-04 2008-09-04 Structure e.g. front structure, for motor vehicle, has angle plate including upper part with fixation unit that cooperates with complementary fixation unit integrated to functional element

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FR2935339A1 true FR2935339A1 (en) 2010-03-05

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FR0855924A Pending FR2935339A1 (en) 2008-09-04 2008-09-04 Structure e.g. front structure, for motor vehicle, has angle plate including upper part with fixation unit that cooperates with complementary fixation unit integrated to functional element

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2900629A1 (en) * 2006-05-04 2007-11-09 Peugeot Citroen Automobiles Sa Vehicle, has bumper face bar supported by face bar beam with longitudinal branches, where each branch is formed of energy absorber and support plate that are positioned on assembly of facade support element and facade support bracket

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2900629A1 (en) * 2006-05-04 2007-11-09 Peugeot Citroen Automobiles Sa Vehicle, has bumper face bar supported by face bar beam with longitudinal branches, where each branch is formed of energy absorber and support plate that are positioned on assembly of facade support element and facade support bracket

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