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WO2001070558A1 - Structural crossbeam and method for making same - Google Patents

Structural crossbeam and method for making same Download PDF

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Publication number
WO2001070558A1
WO2001070558A1 PCT/FR2001/000807 FR0100807W WO0170558A1 WO 2001070558 A1 WO2001070558 A1 WO 2001070558A1 FR 0100807 W FR0100807 W FR 0100807W WO 0170558 A1 WO0170558 A1 WO 0170558A1
Authority
WO
WIPO (PCT)
Prior art keywords
duct
structuring
beam according
transverse beam
air
Prior art date
Application number
PCT/FR2001/000807
Other languages
French (fr)
Inventor
Mounir Ben Fredj
Uwe Dausch
Original Assignee
Valeo Climatisation
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 Valeo Climatisation filed Critical Valeo Climatisation
Priority to JP2001568779A priority Critical patent/JP2003528000A/en
Priority to EP01919527A priority patent/EP1178920A1/en
Publication of WO2001070558A1 publication Critical patent/WO2001070558A1/en

Links

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00514—Details of air conditioning housings
    • B60H1/0055—Details of air conditioning housings the housing or parts thereof being integrated in other devices, e.g. dashboard
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H1/00557—Details of ducts or cables
    • B60H1/00564—Details of ducts or cables of air ducts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating [HVAC] devices
    • B60H1/24—Devices purely for ventilating or where the heating or cooling is irrelevant
    • B60H1/241—Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle
    • B60H1/242—Devices purely for ventilating or where the heating or cooling is irrelevant characterised by the location of ventilation devices in the vehicle located in the front area
    • 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
    • B62D25/142—Dashboards as superstructure sub-units having ventilation channels incorporated therein
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D29/00—Superstructures, understructures, or sub-units thereof, characterised by the material thereof
    • B62D29/04—Superstructures, understructures, or sub-units thereof, characterised by the material thereof predominantly of synthetic material

Definitions

  • the invention relates to a transverse conduit, capable of structuring the installation of different functionalities, as well as a method for producing such a conduit.
  • the invention applies in particular, but not exclusively, to the field of the passenger compartment of motor vehicles.
  • Other fields of application are concerned, such as for example building or the chemical industry, when combinations of functions are to be realize, at least one of which involves heat exchange
  • the distribution of filtered air is usually carried out by plastic ducts.
  • solutions have been proposed for distributing the air and / or the electrical harnesses by the hollow structural cross member, formed by a metal structuring beam which extends transversely, under the dashboard, over the entire width of the vehicle
  • a structuring beam generally has so-called “functionality” fastening means dedicated to various functions, such as air inlet and outlet openings, lateral or central fastening elements (stand,), fixing elements for the steering column, or for guiding the air cushion
  • the fixing means are produced in the form of a cutout (tapped holes,) or inserts generally welded or screwed
  • the present invention aims to solve the problem of heat losses without presenting the drawbacks of the state of the art, by proposing to produce the structuring beam in at least one air duct made of thermally insulating material and locally molded
  • the subject of the invention is a structuring transverse beam, having a hollow interior space capable of transporting air and which comprises at least one transverse duct formed from a profile of plastic material molded locally to reinforce the structure and produce means of functionality
  • the conduit and overmoldings are, at least in part, of pultruded composite material comprising fibers, such as glass, carbon or aramid fibers, embedded in a binder resin, in particular a polyester resin.
  • a binder resin in particular a polyester resin.
  • the overmoldings of the conduit are made of plastic material, in particular of thermoplastic material such as polypropylene. They can advantageously have ribs of ⁇ gidification.
  • the invention also relates to a process for producing such a beam by pultrusion either in continuous mode and cut to length by cutting, or in discontinuous mode, by external shaping between two dies and internal shaping by introduction of a sock of cone or other chemically inert material, or by the introduction of a mandrel
  • This last mode allows the realization of more complex shapes, in particular particular curvatures
  • the overmolding is carried out locally according to a plurality of molds.
  • the use of several molds of reduced dimensions to produce one or more locally close overmoldings allows local adaptation to needs, and avoids the use of a single bulky mold. , difficult to maneuver and expensive
  • FIG. 1 a perspective view of an example of a beam structuring according to the invention
  • FIG. 2a a cross section of the central air distribution box along a median plane
  • FIG. 2b a cross section of a beam according to FIG. 1 with two longitudinal ducts
  • FIG. 3 a longitudinal section, partially represented, of a beam comprising two conduits in series
  • FIG. 4 a perspective view, partially represented, of a structuring beam produced in the form of a double channel with bifurcation
  • the beam 1 comprises a duct 2 formed by two longitudinal parts 7 and 8
  • the central region of this beam comprises an air distribution box 3 molded onto the beam
  • An air inlet opening 4 of the box 3 communicates with part 8 of the duct 2
  • the end zones 9 of the duct 2 have openings 10 for lateral ventilation of the passenger compartment of the vehicle and / or for defrosting / demisting the windows
  • the duct 2 is produced in the form of a profile made of composite material II is manufactured continuously by pultrusion and cut to length by cutting Pultrusion is a manufacturing method derived from extrusion making it possible to continuously produce profiles in composite material
  • This composite material is formed of fibers, carbon fibers in the embodiment, embedded in an epoxy resin
  • Other combinations of fibers and resins are of course possible (carbon fibers, aramid, and polyester resins or phenolics)
  • the fibers pass through a resin bath and then through a heated die in which polymerization occurs.
  • the process can be improved by also using fibers made of electrically conductive material and an electromagnetic wave generator at the terminals of the die Electromagnetic waves induce a current in the fibers which heat and directly polymerize the resin
  • Polypropylene elements providing various localized functions, are overmolded on the structuring duct These overmolded elements include
  • the central air distribution unit 3 comprising an air inlet 4 connected to an air conditioning unit (not shown) provided with three air outlet vents 5a, 5b, 5c (FIG. 2a) communicating respectively with aeration, defrost and aeration nozzles at the foot, and shutter-type air distribution means
  • air conditioning unit not shown
  • FIG. 2a Three air outlet vents 5a, 5b, 5c (FIG. 2a) communicating respectively with aeration, defrost and aeration nozzles at the foot
  • shutter-type air distribution means Other elements of overmolding for example for the heating and air conditioning apparatus, the glove box, the pedals, the reticle apron, the central console, etc., can be produced as required.
  • the main overmoldings, -box 3, docking elements 20, 21, guide element 25-, are equipped with ribs 16a, 16b, 16c, 16d allowing to structure their structure
  • the outlet openings 5a, 5b and 5c appear successively on the periphery of the central air distribution box 3
  • the stand 19 is fixed to this box using a base 22
  • the conduit can be formed, as a variant, by at least two successive sections 8a, 8b, overmolded by an envelope 7, constituting for example the central housing, of the same internal diameter as the conduits in the junction zone between the sections
  • the duct 2 comprises at least one internal longitudinal partition 15 to form two parallel sub-ducts of air 2a, 2b, dedicated respectively defrosting, through the opening 10a, and lateral ventilation, through the outlet 10b
  • the invention is not limited to the embodiments described and shown It is for example possible to implement see it previous pultrusion process in a discontinuous mode the duct is made between two dies while a silicone sock gives it its internal shape This process allows more complex shapes Thus, as illustrated in Figure 4, it is possible to make two ducts

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Air-Conditioning For Vehicles (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

The invention aims at reducing space requirement caused by the presence, in a common site, structural means for air distribution and optionally electric cable bundles, for example beneath the floor on board a vehicle, without incurring heat losses. In order to achieve this, the invention provides a structural crossbeam (1) having a hollow internal space capable of transporting filtered air and functional cutouts, wherein at least a transverse duct is formed by an extruded plastic profile locally overmoulded around the cutouts provided for various functions. The duct and the over-mouldings can advantageously, at least partly, be made of a pultruded composite material comprising fibres embedded in a binder resin. The over-mouldings (3, 20, 21, 25) of the duct (8) preferably have rigidifying ribs (16a, 16b, 16c, 16d).

Description

POUTRE TRANSVERSALE STRUCTURANTE ET PROCEDE DE REALISATION STRUCTURING TRANSVERSE BEAM AND METHOD OF MAKING
L'invention concerne un conduit transversal, apte à structurer la mise en place de différentes fonctionnalités, ainsi qu'un procédé pour réaliser un tel conduitThe invention relates to a transverse conduit, capable of structuring the installation of different functionalities, as well as a method for producing such a conduit.
L'invention s'applique en particulier, mais non exclusivement, au domaine de l'habitacle des véhicules automobiles D'autres domaines d'application sont concernés, comme par exemple le bâtiment ou l'industrie chimique, lorsque des combinaisons de fonctions sont à réaliser dont l'une au moins fait intervenir un échange de chaleurThe invention applies in particular, but not exclusively, to the field of the passenger compartment of motor vehicles. Other fields of application are concerned, such as for example building or the chemical industry, when combinations of functions are to be realize, at least one of which involves heat exchange
Dans un véhicule automobile, la distribution d'air filtré est habituellement réalisée par des conduits en matière plastique Afin de réduire l'encombrement, des solutions ont été proposées pour distribuer l'air et/ou les faisceaux électriques par la traverse creuse de structure, formée par une poutre métallique structurante qui s'étend transversalement, sous la planche de bord, sur toute la largeur du véhiculeIn a motor vehicle, the distribution of filtered air is usually carried out by plastic ducts. In order to reduce the bulk, solutions have been proposed for distributing the air and / or the electrical harnesses by the hollow structural cross member, formed by a metal structuring beam which extends transversely, under the dashboard, over the entire width of the vehicle
Par ailleurs, une poutre structurante présente en général des moyens de fixation dits de « fonctionnalité » dédiés à diverses fonctions, telles que des bouches d'entrée et de sortie d'air, des éléments de fixation latéraux ou centraux (béquille, ), des éléments de fixation de la colonne de direction, ou de guidage de coussin d'air Les moyens de fixation sont réalisés sous la forme de découpe (trous taraudés, ) ou de pièces rapportées généralement soudées ou visséesIn addition, a structuring beam generally has so-called “functionality” fastening means dedicated to various functions, such as air inlet and outlet openings, lateral or central fastening elements (stand,), fixing elements for the steering column, or for guiding the air cushion The fixing means are produced in the form of a cutout (tapped holes,) or inserts generally welded or screwed
Cependant, cette poutre métallique présente de fortes pertes thermiques Pour y remédier, le document EP 0662 901 décrit un support transversal constitué d'un profilé métallique creux dans lequel sont insérés des tuyaux en matériau plastique Chaque tuyau est muni de saillies pour maintenir un espace entre le support transversal et les tuyaux afin de limiter les échanges thermiques Cette solution est complexe et difficile à mettre en œuvre du fait des problèmes liés à l'introduction des tuyaux de matière plastiqueHowever, this metal beam has high thermal losses. To remedy this, the document EP 0662 901 describes a transverse support consisting of a hollow metal profile in which are inserted plastic material pipes. Each pipe is provided with projections to maintain a space between the transverse support and the pipes to limit heat exchange This solution is complex and difficult to implement due to the problems associated with the introduction of plastic pipes
La présente invention vise à résoudre le problème des pertes thermiques sans présenter les inconvénients de l'état de la technique, en proposant de réaliser la poutre structurante en au moins un conduit d'air en matériau thermiquement isolant et localement surmoulé Plus précisément, l'invention a pour objet une poutre transversale structurante, présentant un espace intérieur creux apte à transporter de l'air et qui comporte au moins un conduit transversal formé d'un profilé en matériau plastique surmoulé localement pour renforcer la structure et réaliser des moyens de fonctionnalitéThe present invention aims to solve the problem of heat losses without presenting the drawbacks of the state of the art, by proposing to produce the structuring beam in at least one air duct made of thermally insulating material and locally molded More specifically, the subject of the invention is a structuring transverse beam, having a hollow interior space capable of transporting air and which comprises at least one transverse duct formed from a profile of plastic material molded locally to reinforce the structure and produce means of functionality
Selon des modes de réalisation particuliers, le conduit est surmoulures sont, au moins en partie, en matériau composite pultrudé comportant des fibres, telles que des fibres de verre, de carbone ou d'aramide, noyées dans une résine liante, notamment une résine polyester époxy ou phénoliqueAccording to particular embodiments, the conduit and overmoldings are, at least in part, of pultruded composite material comprising fibers, such as glass, carbon or aramid fibers, embedded in a binder resin, in particular a polyester resin. epoxy or phenolic
Les surmoulures du conduit sont réalisées en matériau plastique, notamment en matériau thermoplastique tel que du polypropylène Elles peuvent présenter avantageusement des nervures de πgidificationThe overmoldings of the conduit are made of plastic material, in particular of thermoplastic material such as polypropylene. They can advantageously have ribs of πgidification.
L'invention concerne également un procédé de réalisation d'une telle poutre par pultrusion soit en mode continu et mis à longueur par découpe, soit en mode discontinu, par mise en forme externe entre deux matrices et mise en forme interne par introduction d'une chaussette de si cone ou d'autre matériau chimiquement inerte, ou par l'introduction d'un mandrin Ce dernier mode autorise la réalisation de formes plus complexes, notamment de courbures particulièresThe invention also relates to a process for producing such a beam by pultrusion either in continuous mode and cut to length by cutting, or in discontinuous mode, by external shaping between two dies and internal shaping by introduction of a sock of cone or other chemically inert material, or by the introduction of a mandrel This last mode allows the realization of more complex shapes, in particular particular curvatures
Selon un mode particulier, le surmoulage est réalisé localement selon une pluralité de moules L'utilisation de plusieurs moules de dimensions réduites pour réaliser une ou plusieurs surmoulures localement proches permet une adaptation locale aux besoins, et évite l'emploi d'un moule unique volumineux, difficile à manœuvrer et coûteuxAccording to a particular mode, the overmolding is carried out locally according to a plurality of molds. The use of several molds of reduced dimensions to produce one or more locally close overmoldings allows local adaptation to needs, and avoids the use of a single bulky mold. , difficult to maneuver and expensive
D'autres caractéristiques et avantages de l'invention apparaîtront à la lecture de la description détaillée qui suit, relative à des exemples de réalisation, en référence aux figures annexées qui représentent respectivement - la figure 1 , une vue perspective d'un exemple de poutre structurante conforme à l'invention , la figure 2a, une coupe transversale du boîtier central de distribution d'air suivant un plan médian , la figure 2b, une coupe transversale d'une poutre selon la figure 1 à deux conduits longitudinaux , la figure 3, une coupe longitudinale, partiellement représentée, d'une poutre comportant deux conduits en série, et la figure 4, une vue perspective, partiellement représentée, d'une poutre structurante réalisée sous la forme d'un double canal avec bifurcationOther characteristics and advantages of the invention will appear on reading the detailed description which follows, relating to exemplary embodiments, with reference to the appended figures which respectively represent - FIG. 1, a perspective view of an example of a beam structuring according to the invention, FIG. 2a, a cross section of the central air distribution box along a median plane, FIG. 2b, a cross section of a beam according to FIG. 1 with two longitudinal ducts, FIG. 3, a longitudinal section, partially represented, of a beam comprising two conduits in series, and FIG. 4, a perspective view, partially represented, of a structuring beam produced in the form of a double channel with bifurcation
Comme illustrée en figure 1 , la poutre 1 comporte un conduit 2 formé de deux parties longitudinales 7 et 8 La région médiane de cette poutre comporte un boîtier de distribution d'air 3 surmoulé sur la poutre Une ouverture d'entrée d'air 4 du boîtier 3 communique avec la partie 8 du conduit 2 Les zones d'extrémité 9 du conduit 2 comportent des ouvertures 10 pour l'aération latérale de l'habitacle du véhicule et/ou pour le dégivrage/désembuage des fenêtresAs illustrated in FIG. 1, the beam 1 comprises a duct 2 formed by two longitudinal parts 7 and 8 The central region of this beam comprises an air distribution box 3 molded onto the beam An air inlet opening 4 of the box 3 communicates with part 8 of the duct 2 The end zones 9 of the duct 2 have openings 10 for lateral ventilation of the passenger compartment of the vehicle and / or for defrosting / demisting the windows
Le conduit 2 est réalisé sous la forme d'un profilé en matériau composite II est fabriqué en continu par pultrusion et mis a longueur par découpe La pultrusion est une méthode de fabrication dérivée de l'extrusion permettant de réaliser en continu des profilés en matériau composite Ce matériau composite est formé de fibres, de fibres de carbone dans l'exemple de réalisation, noyées dans une résine époxy D'autres combinaisons de fibres et de résines sont bien entendu possibles (fibres de carbone, d'aramide, et résines polyester ou phénoliques)The duct 2 is produced in the form of a profile made of composite material II is manufactured continuously by pultrusion and cut to length by cutting Pultrusion is a manufacturing method derived from extrusion making it possible to continuously produce profiles in composite material This composite material is formed of fibers, carbon fibers in the embodiment, embedded in an epoxy resin Other combinations of fibers and resins are of course possible (carbon fibers, aramid, and polyester resins or phenolics)
Selon cette méthode, les fibres passent dans un bain de résine puis dans une filière chauffée dans laquelle se produit la polymérisation Le procédé peut être amélioré en utilisant également des fibres en matériau conducteur de l'électricité et un générateur d'ondes électromagnétiques aux bornes de la filière Les ondes électromagnétiques induisent un courant dans les fibres qui chauffent et polyméπsent directement la résineAccording to this method, the fibers pass through a resin bath and then through a heated die in which polymerization occurs. The process can be improved by also using fibers made of electrically conductive material and an electromagnetic wave generator at the terminals of the die Electromagnetic waves induce a current in the fibers which heat and directly polymerize the resin
Des éléments en polypropylène, assurant diverses fonctionnalités localisées, sont surmoulés sur le conduit structurant Ces éléments surmoulés comprennentPolypropylene elements, providing various localized functions, are overmolded on the structuring duct These overmolded elements include
- des bouches de diffusion d'air 11 a, 11 b, 12a, 12b, disposés à proximité des extrémités de la poutre 2, et comportant des moyens de fixation 13a, 13b, 14a, 14b d'éléments de distribution d'air de type volet (volet papillon, volet drapeau, volet tambour, volet persienne ) , - des éléments d'accostage 20, 21 disposés aux extrémités de la poutre 2 pour fixer cette poutre à des éléments de structure latéraux du véhicule (non représentés) ,- air diffusion vents 11a, 11b, 12a, 12b, arranged near the ends of the beam 2, and comprising fixing means 13a, 13b, 14a, 14b of air distribution elements of shutter type (butterfly shutter, flag shutter, drum shutter, louver shutter), - docking elements 20, 21 arranged at the ends of the beam 2 for fixing this beam to lateral structural elements of the vehicle (not shown),
- des moyens de fixation de la béquille centrale 19 (figure 2a) , - un module de fixation 23 de la colonne de direction ,- means for fixing the center stand 19 (FIG. 2a), - a fixing module 23 for the steering column,
- des éléments de fixation 24 et de guidage 25 du coussin- fastening elements 24 and guide 25 of the cushion
- des pattes d'attache 26 de câbles et de connecteurs (électriques, hydrauliques, Bowden ) , - le boîtier central de distribution d'air 3, comportant une entrée d'air 4 relié à un boîtier de climatisation (non représenté) muni de trois bouches de sortie d'air 5a, 5b, 5c (figure 2a) communiquant respectivement avec des buses d'aération, de dégivrage et d'aération au pied, et des moyens de distribution d'air de type volet D'autres éléments de surmoulage par exemple pour l'appareil de chauffage et de climatisation, la boîte à gants le pédalier, le tablier du réticule, la console centrale, etc , peuvent être réalisés en fonction des besoins- fastening tabs 26 for cables and connectors (electrical, hydraulic, Bowden), - the central air distribution unit 3, comprising an air inlet 4 connected to an air conditioning unit (not shown) provided with three air outlet vents 5a, 5b, 5c (FIG. 2a) communicating respectively with aeration, defrost and aeration nozzles at the foot, and shutter-type air distribution means Other elements of overmolding for example for the heating and air conditioning apparatus, the glove box, the pedals, the reticle apron, the central console, etc., can be produced as required.
Les principaux surmoulages, -boîtier 3, éléments d'accostage 20, 21 , élément de guidage 25-, sont équipés de nervures 16a, 16b, 16c, 16d permettant de πgidifier leur structureThe main overmoldings, -box 3, docking elements 20, 21, guide element 25-, are equipped with ribs 16a, 16b, 16c, 16d allowing to structure their structure
En référence à la coupe médiane de la figure 2a, les bouches de sortie 5a, 5b et 5c apparaissent successivement sur le pourtour du boîtier central de distribution d'air 3 La béquille 19 est fixée sur ce boîtier à l'aide d'une embase 22 Comme illustré en coupe longitudinale sur la figure 3, le conduit peut être formé, en variante, par au moins deux tronçons successifs 8a, 8b, surmoulés par une enveloppe 7, constituant par exemple le boîtier central, de même diamètre intérieur que les conduits dans la zone de jonction entre les tronçons Dans une autre variante de réalisation, illustrée par la vue en coupe 2b, le conduit 2 comporte au moins une cloison longitudinale interne 15 pour former deux sous - conduits d'air parallèles 2a, 2b, dédiés respectivement au dégivrage, par l'ouverture 10a, et à l'aération latérale, par la sortie 10b L'invention n'est pas limitée aux exemples de réalisation décrits et représentés II est par exemple possible de mettre en œuvre le procédé de pultrusion précédent selon un mode discontinu le conduit est fabriqué entre deux matrices tandis qu'une chaussette en silicone lui donne sa forme intérieure Ce procédé autorise des formes plus complexes Ainsi, comme illustré sur la figure 4, il est possible de réaliser deux conduits d'air accolés 2c, 2d, dont l'un présente en extrémité une courbure pour diriger l'air (selon les flèches F1 et F2) sensiblement dans la direction de l'arrière du véhicule, alors que l'autre permet une sortie d'air (flèches F3 et F4) vers le haut du véhiculeWith reference to the middle section of FIG. 2a, the outlet openings 5a, 5b and 5c appear successively on the periphery of the central air distribution box 3 The stand 19 is fixed to this box using a base 22 As illustrated in longitudinal section in FIG. 3, the conduit can be formed, as a variant, by at least two successive sections 8a, 8b, overmolded by an envelope 7, constituting for example the central housing, of the same internal diameter as the conduits in the junction zone between the sections In another alternative embodiment, illustrated by the sectional view 2b, the duct 2 comprises at least one internal longitudinal partition 15 to form two parallel sub-ducts of air 2a, 2b, dedicated respectively defrosting, through the opening 10a, and lateral ventilation, through the outlet 10b The invention is not limited to the embodiments described and shown It is for example possible to implement see it previous pultrusion process in a discontinuous mode the duct is made between two dies while a silicone sock gives it its internal shape This process allows more complex shapes Thus, as illustrated in Figure 4, it is possible to make two ducts of adjoining air 2c, 2d, one of which has a curvature at the end to direct the air (according to arrows F1 and F2) substantially in the direction of the rear of the vehicle, while the other allows an outlet d air (arrows F3 and F4) towards the top of the vehicle
Par ailleurs, il est possible de réaliser une poutre comportant, en combinaison, des conduits d'air transversaux et parallèles, formant des tronçons successifs, afin de diversifier les possibilités d'orientation de l'air et de limiter le remplacement du conduit à une partie endommagée Furthermore, it is possible to produce a beam comprising, in combination, transverse and parallel air ducts, forming successive sections, in order to diversify the possibilities of orientation of the air and to limit the replacement of the duct to a damaged part

Claims

REVENDICATIONS
1 Poutre transversale structurante, présentant un espace intérieur creux apte à transporter de l'air, caractérisé en ce qu'elle comporte au moins un conduit transversal (8, 8a, 8b) formé d'un profilé en matériau plastique surmoulé localement pour renforcer la structure et réaliser des moyens de fonctionnalité1 Structuring transverse beam, having a hollow interior space capable of transporting air, characterized in that it comprises at least one transverse duct (8, 8a, 8b) formed from a profile of plastic material molded locally to reinforce the structure and realize means of functionality
2 Poutre transversale structurante, dans laquelle le conduit est, au moins en partie, en matériau composite pultrudé comportant des fibres noyées dans une résine liante 3 Poutre transversale structurante selon l'une des revendications 1 à 2, dans laquelle les surmoulures sont réalisées en matériau plastique, en particulier en matériau thermoplastique2 structuring transverse beam, in which the duct is, at least in part, in pultruded composite material comprising fibers embedded in a binder resin 3 structuring transverse beam according to one of claims 1 to 2, in which the overmoldings are made of material plastic, in particular of thermoplastic material
4 Poutre transversale structurante selon l'une des revendications 2 ou 3, dans laquelle les fibres sont des fibres de verre, de carbone ou d'aramide, et la résine prise parmi les résines polyester, époxy ou phénoliques4 structuring transverse beam according to one of claims 2 or 3, wherein the fibers are glass, carbon or aramid fibers, and the resin taken from polyester, epoxy or phenolic resins
5 Poutre transversale structurante selon l'une quelconque des revendications précédentes, dans laquelle les surmoulures (3, 20, 21 , 25) du conduit présentent des nervures de πgidification (16a, 16b, 16c, 16d) 6 Poutre transversale structurante selon l' une quelconque des revendications précédentes, dans laquelle au moins deux conduits d'air (2c, 2d) sont accolés5 Structuring transverse beam according to any one of the preceding claims, in which the overmoldings (3, 20, 21, 25) of the duct have stiffening ribs (16a, 16b, 16c, 16d) 6 Structuring transverse beam according to one any one of the preceding claims, in which at least two air ducts (2c, 2d) are joined
7 Poutre transversale structurante selon l'une quelconque des revendications précédentes, dans laquelle au moins un conduit est forme par au moins deux tronçons successifs (8a, 8b) surmoulés par une enveloppe de même diamètre intérieur que les conduits dans la zone de jonction entre les tronçons7 structuring transverse beam according to any one of the preceding claims, in which at least one duct is formed by at least two successive sections (8a, 8b) overmolded by an envelope of the same internal diameter as the ducts in the junction zone between the sections
8 Poutre transversale structurante selon l'une quelconque des revendications précédentes, dans laquelle au moins un conduit (2) comporte au moins une cloison longitudinale interne (15) pour former des sous - conduits d'air parallèles (2a, 2b)8 transverse structuring beam according to any one of the preceding claims, in which at least one duct (2) comprises at least one internal longitudinal partition (15) to form parallel sub-ducts of air (2a, 2b)
9 Poutre transversale structurante selon l'une quelconque des revendications précédentes, dans laquelle des conduits d'air parallèles forment des tronçons successifs 10 Procédé de réalisation d'une poutre selon l'une quelconque des revendications précédentes, caractérisé en ce que les conduits sont formés par pultrusion soit en mode continu avec mise à longueur par découpe, soit en mode discontinu, par mise en forme externe entre deux matrices et mise en forme interne par introduction d'une chaussette9 Structuring transverse beam according to any one of the preceding claims, in which parallel air ducts form successive sections. 10 Method for producing a beam according to any one of the preceding claims, characterized in that the conduits are formed by pultrusion either in continuous mode with cutting to length by cutting, or in discontinuous mode, by external shaping between two dies and internal shaping by introduction of a sock
1 1 Procédé de réalisation d'une poutre selon la revendication 10, caractérisé en ce que le surmoulage est réalisé localement selon une pluralité de moules 1 1 A method of producing a beam according to claim 10, characterized in that the overmolding is performed locally according to a plurality of molds
PCT/FR2001/000807 2000-03-20 2001-03-19 Structural crossbeam and method for making same WO2001070558A1 (en)

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JP2001568779A JP2003528000A (en) 2000-03-20 2001-03-19 Structural cross beam and method of manufacturing the same
EP01919527A EP1178920A1 (en) 2000-03-20 2001-03-19 Structural crossbeam and method for making same

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FR0003527A FR2806366B1 (en) 2000-03-20 2000-03-20 STRUCTURING TRANSVERSE BEAM AND METHOD OF MAKING
FR00/03527 2000-03-20

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EP1673246A1 (en) * 2003-10-08 2006-06-28 Behr GmbH & Co. KG Component for a device for air-conditioning the inside of a vehicle and device for air-conditioning the inside of a vehicle
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FR2886888A1 (en) * 2005-06-14 2006-12-15 Renault Sas DEVICE FOR DISPENSING AIR IN THE CABIN OF A MOTOR VEHICLE
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EP2093132A3 (en) * 2008-02-25 2012-11-14 Calsonic Kansei Corporation Crossbeam for a dashboard preventing electromagnetic noise
WO2013072021A1 (en) * 2011-11-16 2013-05-23 Audi Ag Instrument panel cross member for a vehicle, made of fiber-reinforced plastic
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US9688005B2 (en) 2014-05-06 2017-06-27 Ford Global Technologies, Llc Method of making a hybrid composite instrument panel
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EP1323624A1 (en) * 2001-12-27 2003-07-02 Faurecia Interieur Industrie Structural unit for a dashboard and method for its production
US7303714B2 (en) 2002-11-01 2007-12-04 Calsonic Kansei Corporation Cross member and manufacturing method thereof
EP1415897A3 (en) * 2002-11-01 2004-07-14 Calsonic Kansei Corporation Cross member and manufacturing method thereof
WO2004082970A1 (en) * 2003-03-18 2004-09-30 Calsonic Kansei Corporation Blast duct for vehicle
CN100389975C (en) * 2003-03-18 2008-05-28 康奈可关精株式会社 Blast duct for vehicle
EP1673246A1 (en) * 2003-10-08 2006-06-28 Behr GmbH & Co. KG Component for a device for air-conditioning the inside of a vehicle and device for air-conditioning the inside of a vehicle
FR2863945A1 (en) * 2003-12-19 2005-06-24 Valeo Climatisation Thermal assembly for motor vehicle, has butterfly valve arranged in mixing zone for mixing and/or distributing air flow in direction of cab interior, and cross supporting beam supporting valve for mixing and/or distributing air flow
DE102004043202A1 (en) * 2004-09-03 2006-03-23 Linde + Wiemann Gmbh Kg Supporting element for component carriers in motor vehicles has supporting element that is in the form of a connecting element for the component carrier(s)
FR2886888A1 (en) * 2005-06-14 2006-12-15 Renault Sas DEVICE FOR DISPENSING AIR IN THE CABIN OF A MOTOR VEHICLE
WO2006134285A3 (en) * 2005-06-14 2007-03-22 Renault Sa Air circulation system for a motor vehicle passenger compartment
WO2006134288A3 (en) * 2005-06-14 2007-03-01 Renault Sa Air distribution duct in the passenger compartment of a motor vehicle
KR101264954B1 (en) 2005-06-14 2013-05-15 르노 에스.아.에스. Air distribution duct in the vehicle cabin
FR2886889A1 (en) * 2005-06-14 2006-12-15 Renault Sas AIR DISTRIBUTION CONDUIT IN THE CABIN OF A MOTOR VEHICLE
US8512110B2 (en) 2005-06-14 2013-08-20 Renault S.A.S. Air distribution duct in the passenger compartment of a motor vehicle
US7367613B2 (en) * 2006-08-31 2008-05-06 Honda Motor Co., Ltd. Hanger beam assembly
US7374232B2 (en) * 2006-08-31 2008-05-20 Honda Motor Co., Ltd. Hanger beam assembly
US7377578B2 (en) * 2006-08-31 2008-05-27 Honda Motor Co., Ltd. Hanger beam assembly
DE102007009613A1 (en) * 2007-02-26 2008-08-28 Behr Gmbh & Co. Kg Air duct, in particular for a motor vehicle
EP2093132A3 (en) * 2008-02-25 2012-11-14 Calsonic Kansei Corporation Crossbeam for a dashboard preventing electromagnetic noise
CN103930339A (en) * 2011-11-16 2014-07-16 奥迪股份公司 Instrument panel cross member for a vehicle, made of fiber-reinforced plastic
WO2013072021A1 (en) * 2011-11-16 2013-05-23 Audi Ag Instrument panel cross member for a vehicle, made of fiber-reinforced plastic
US9205721B2 (en) * 2014-02-05 2015-12-08 Ford Global Technologies, Llc Cross-car structural support with integrated HVAC floor duct
US9434095B2 (en) 2014-05-06 2016-09-06 Ford Global Technologies, Llc Hybrid composite utilizing gas-assisted molding geometries
US9193394B1 (en) 2014-05-06 2015-11-24 Ford Global Technologies, Llc Modular composite instrument panel
US9186993B1 (en) 2014-05-06 2015-11-17 Ford Global Technologies, Llc Hybrid composite instrument panel
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US9950749B2 (en) 2014-05-06 2018-04-24 Ford Global Technologies, Llc Hybrid composite instrument panel
GB2535764A (en) * 2015-02-26 2016-08-31 Aston Martin Lagonda Ltd Structural cross-member
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WO2017220562A1 (en) 2016-06-20 2017-12-28 Institut De Recherche Technologique Jules Verne Method for producing a composite material part, steering column support member and lower space cross member produced by such a method

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FR2806366B1 (en) 2002-07-26
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FR2806366A1 (en) 2001-09-21

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