EP4105096B1 - Trim assembly for a vehicle body, in particular a railway vehicle - Google Patents

Trim assembly for a vehicle body, in particular a railway vehicle Download PDF

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Publication number
EP4105096B1
EP4105096B1 EP22178735.1A EP22178735A EP4105096B1 EP 4105096 B1 EP4105096 B1 EP 4105096B1 EP 22178735 A EP22178735 A EP 22178735A EP 4105096 B1 EP4105096 B1 EP 4105096B1
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EP
European Patent Office
Prior art keywords
fixing
spacer
support
metal wall
vehicle
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EP22178735.1A
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German (de)
French (fr)
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EP4105096A1 (en
Inventor
Ludovic BARABAN
Cédric Adrien BAQUE
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Alstom Holdings SA
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Alstom Holdings SA
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Publication of EP4105096A1 publication Critical patent/EP4105096A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D17/00—Construction details of vehicle bodies
    • B61D17/04—Construction details of vehicle bodies with bodies of metal; with composite, e.g. metal and wood body structures
    • B61D17/12—Roofs

Definitions

  • Rail vehicles are generally equipped with a series of boxes housing various elements necessary for the operation of said vehicle, such as for example mechanical, electronic elements or even replacement parts.
  • elements necessary for the operation of said vehicle such as for example mechanical, electronic elements or even replacement parts.
  • locations of variable shapes and dimensions are provided in or on the body of the vehicle, in particular on the roof of the vehicle. These trunks are closed and isolated from the outside by means of panels fixed to the body of the vehicle.
  • the exterior wall of the body includes a plurality of holes. These holes in the car roof can then lead to water infiltration inside the vehicle, particularly inside the trunks and cause corrosion of the elements present in these trunks.
  • the prior art is illustrated by the documents FR 3 011 216 A1 And EP 2 505 449 A1 .
  • the aim of the invention is to propose to overcome these drawbacks by proposing a set of linings for a vehicle body, in particular a railway body, limiting or even eliminating corrosion problems.
  • the metal wall 12 is made of aluminum.
  • the exterior panel is made of aluminum.
  • the fixing support 16 has the shape of a bridge comprising a fixing surface 22 and branches 24, preferably two branches 24, extending on either side of the fixing surface 22.
  • the fixing surface 22 is in contact with the spacer 18 and the branches 24 are fixed to the external surface of the metal wall 12.
  • the fixing support 16 thus has a “U” shape oriented towards the external surface of the metal wall 12.
  • the branches 16 are fixed to the external surface of the metal wall 12 by welding and/or bonding, preferably by welding.
  • the filling element 10 according to the invention further comprises a fixing element 20.
  • the fixing element 20 passes through the spacer 18 to be fixed at the level of the fixing support 16. It makes it possible to keep the spacer 18 and the fixing support 16. It can for example consist of a set of screws and nuts or even a rivet.
  • the fixing element 20 is removable. This embodiment is advantageous in that it allows simple access to the contents of the trunks present in the body of the vehicle by removing the exterior wall 14.
  • the screw 28 is captive in the spacer 18.
  • a washer 36 located inside the spacer 18, is fixed on the screw 28.
  • the washer 36 is free to slide along of the screw 28. It is, however, integral with the screw 28 such that the screw 28 and washer 36 assembly cannot be easily separated from the spacer 18.
  • the packing element 10 further comprises at least one washer 38A, 38B placed between the head 32 of the screw 26 and the spacer 18.
  • the packing element 10 comprises at least one flat washer 38A, in contact with the spacer 18, and at least one conical and ribbed washer 38, placed between the washer 38B and the head 32 of the screw 28.
  • the washers 38A, 38B are made of steel, advantageously made of steel coated with a layer of an alloy based on zinc and nickel.
  • the central zone 42 typically comprises a hexagonal perforation 46, complementary to the nut 30.
  • the fixing cage 40 is fixed to the internal surface of the fixing support 16 by means of rivets 48, preferably made of aluminum.
  • the fixing cage 40 is made of steel, typically Magnêt ® .
  • the invention also relates to a method of fixing an exterior panel 14 to the surface of a metal wall 12 of a vehicle body, in particular a railway body.
  • the method of the invention comprises, between steps a) and b), an intermediate step of drilling the exterior panel 14 at the location where the spacer 18 will be inserted.
  • This drilling step can be carried out by any method known to those skilled in the art.
  • Step c) typically consists of inserting a fixing element 20 through the spacer 18 and fixing said fixing element 20 on the fixing support 20.
  • the packing element according to the invention makes it possible to limit the corrosion phenomena generally occurring at the roof of vehicles thanks on the one hand to the arrangement of the different parts making it possible to minimize the steel/contact zones. aluminum, but also thanks to the existence of a coating layer on the surface of the steel parts. The presence on the surface of the fixing elements of an alloy layer based on zinc and nickel also makes it possible to limit the risk of seizing. Finally, the invention makes it possible to prevent water infiltration inside cars by avoiding drilling the metal wall of the vehicle body.

Description

La présente invention concerne un ensemble de garnissage d'une caisse de véhicule, notamment de véhicule ferroviaire. L'invention concerne également un procédé de fixation d'un panneau extérieur à la surface d'une paroi métallique d'une caisse de véhicule.The present invention relates to a lining assembly for a vehicle body, in particular a railway vehicle. The invention also relates to a method of attaching an exterior panel to the surface of a metal wall of a vehicle body.

Les véhicules ferroviaires sont généralement équipés d'une série de coffres abritant différents éléments nécessaires au fonctionnement dudit véhicule, comme par exemple des éléments mécaniques, électroniques ou encore des pièces de remplacement. A cet effet, des emplacements de formes et de dimensions variables sont prévues dans ou sur la caisse du véhicule, notamment sur la toiture du véhicule. Ces coffres sont fermés et isolés de l'extérieur au moyen de panneaux fixés sur la caisse du véhicule.Rail vehicles are generally equipped with a series of boxes housing various elements necessary for the operation of said vehicle, such as for example mechanical, electronic elements or even replacement parts. For this purpose, locations of variable shapes and dimensions are provided in or on the body of the vehicle, in particular on the roof of the vehicle. These trunks are closed and isolated from the outside by means of panels fixed to the body of the vehicle.

Ces panneaux extérieurs sont généralement fixés à la surface extérieure du véhicule au moyen de systèmes de fixation comprenant d'une part un écrou/entretoise en acier inoxydable serti à travers la paroi métallique de la caisse du véhicule et d'autre part une vis en acier traversant le panneau extérieur pour venir se fixer audit écrou/entretoise.These exterior panels are generally attached to the exterior surface of the vehicle by means of fixing systems comprising on the one hand a stainless steel nut/spacer crimped through the metal wall of the vehicle body and on the other hand a steel screw passing through the exterior panel to attach to said nut/spacer.

Ces modes de fixation présentent toutefois de nombreux inconvénients.These methods of fixing, however, have numerous drawbacks.

La juxtaposition d'éléments en aluminium, notamment des panneaux extérieurs, avec des pièces en acier, comme par exemple les vis, conduit à l'apparition de phénomènes de corrosion. Ces phénomènes se traduisent alors par une décomposition filiforme des éléments en aluminium et par le cloquage de la peinture présente à la surface de ceux-ci.The juxtaposition of aluminum elements, particularly exterior panels, with steel parts, such as screws, leads to the appearance of corrosion phenomena. These phenomena then result in a threadlike decomposition of the aluminum elements and in the blistering of the paint present on their surface.

De plus, lors du montage et/ou du démontage des panneaux extérieurs, le mouvement relatif des éléments de fixation en acier inoxydable, typiquement des vis par rapport aux écrous et/ou entretoises, provoquent également des problèmes de grippage susceptibles d'endommager les pièces en contact.In addition, during assembly and/or disassembly of the exterior panels, the relative movement of the stainless steel fastening elements, typically screws in relation to nuts and/or spacers, also causes seizure problems likely to damage the parts. in touch.

Enfin, et en raison de la présence de défauts dans le sertissage de l'écrou/entretoise, la paroi extérieure de la caisse comprend une pluralité de trous. Ces trous au niveau de la toiture des voitures peuvent alors conduire à l'infiltration d'eau à l'intérieur du véhicule, notamment à l'intérieur des coffres et provoquer la corrosion des éléments présents dans ces coffres. L'art antérieur est illustré par les documents FR 3 011 216 A1 et EP 2 505 449 A1 .Finally, and due to the presence of defects in the crimping of the nut/spacer, the exterior wall of the body includes a plurality of holes. These holes in the car roof can then lead to water infiltration inside the vehicle, particularly inside the trunks and cause corrosion of the elements present in these trunks. The prior art is illustrated by the documents FR 3 011 216 A1 And EP 2 505 449 A1 .

L'invention a pour but de proposer de pallier ces inconvénients en proposant un ensemble de garnissage d'une caisse de véhicule, notamment ferroviaire, limitant, voire supprimant les problèmes de corrosion.The aim of the invention is to propose to overcome these drawbacks by proposing a set of linings for a vehicle body, in particular a railway body, limiting or even eliminating corrosion problems.

A cet effet, l'invention propose un ensemble de garnissage comprenant :

  • une paroi métallique comprenant une surface externe,
  • un panneau extérieur fixé sur la surface externe de la paroi métallique,
  • une interface de fixation du panneau extérieur sur la surface externe de la paroi métallique, l'interface de fixation comprenant un support de fixation en aluminium s'étendant en saillie de la surface externe de la paroi métallique, une entretoise en aluminium traversant le panneau extérieur et appliquée sur le support de fixation, et un élément de fixation fixant l'entretoise au support de fixation, ladite entretoise maintenant un espace entre le panneau extérieur et le support de fixation.
For this purpose, the invention proposes a packing assembly comprising:
  • a metal wall comprising an external surface,
  • an exterior panel fixed to the exterior surface of the metal wall,
  • an interface for fixing the outer panel to the outer surface of the metal wall, the fixing interface comprising an aluminum fixing support extending projecting from the outer surface of the metal wall, an aluminum spacer passing through the outer panel and applied to the mounting bracket, and a fastener securing the spacer to the mounting bracket, said spacer maintaining a space between the exterior panel and the mounting bracket.

Suivant des modes particuliers de réalisation, l'ensemble de garnissage selon l'invention comporte l'une ou plusieurs des caractéristiques suivantes, prises isolément ou selon toute combinaison techniquement envisageable :

  • le support de fixation présente une forme de pontet comprenant une surface de fixation, en contact avec l'entretoise, et des branches s'étendant de part et d'autres de la surface de fixation, ledit support étant fixé à la surface externe de la paroi métallique par ses branches ;
  • le support de fixation est fixé à la surface externe de la paroi métallique par soudage ou par collage, de préférence par soudage ;
  • l'élément de fixation comprend une vis et un écrou complémentaire de ladite vis.
  • l'écrou est solidaire du support de fixation, de préférence est fixé au niveau de la surface de fixation du support ;
  • la vis, et éventuellement l'écrou, sont en acier, de préférence en acier revêtu d'une couche en un alliage à base zinc et de nickel ;
  • l'ensemble de garnissage comprend en outre au moins une rondelle placée entre une tête de l'élément de fixation et l'entretoise, ladite rondelle étant de préférence en acier, plus préférentiellement en acier revêtu d'une couche en un alliage à base zinc et de nickel.
  • le panneau extérieur est en aluminium ;
  • la paroi métallique est une paroi de toit d'un véhicule ferroviaire. L'invention concerne également un procédé de fixation d'un panneau extérieur à la surface d'une paroi métallique d'une caisse de véhicule, notamment ferroviaire, comprenant les étapes suivantes :
    1. a) fixation d'un support de fixation en aluminium en saillie de la surface externe de ladite paroi métallique, de préférence par soudage ou collage,
    2. b) insertion d'une entretoise en aluminium au travers du panneau extérieur, ladite entretoise étant appliquée sur le support de fixation et maintenant un espace entre ledit support de fixation et ledit panneau extérieur, et
    3. c) fixation de l'entretoise au support de fixation.
According to particular embodiments, the packing assembly according to the invention comprises one or more of the following characteristics, taken individually or in any technically conceivable combination:
  • the fixing support has the shape of a bridge comprising a fixing surface, in contact with the spacer, and branches extending on either side of the fixing surface, said support being fixed to the external surface of the metal wall by its branches;
  • the fixing support is fixed to the external surface of the metal wall by welding or by gluing, preferably by welding;
  • the fixing element comprises a screw and a nut complementary to said screw.
  • the nut is integral with the fixing support, preferably is fixed at the level of the fixing surface of the support;
  • the screw, and possibly the nut, are made of steel, preferably of steel coated with a layer of a zinc and nickel-based alloy;
  • the packing assembly further comprises at least one washer placed between a head of the fixing element and the spacer, said washer preferably being made of steel, more preferably of steel coated with a layer of a zinc-based alloy and nickel.
  • the exterior panel is made of aluminum;
  • the metal wall is a roof wall of a railway vehicle. The invention also relates to a method of fixing an exterior panel to the surface of a metal wall of a vehicle body, in particular a railway body, comprising the following steps:
    1. a) fixing an aluminum fixing support projecting from the external surface of said metal wall, preferably by welding or gluing,
    2. b) inserting an aluminum spacer through the exterior panel, said spacer being applied to the fixing support and maintaining a space between said fixing support and said exterior panel, and
    3. c) fixing the spacer to the mounting bracket.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple, et faite en se référant aux dessins parmi lesquels :

  • La Figure 1 est une vue en perspective éclatée d'un élément de garnissage d'une caisse de véhicule selon l'invention, prise depuis l'extérieure dudit véhicule.
  • La Figure 2 est une vue en coupe d'un élément de garnissage d'une caisse de véhicule selon l'invention.
  • La Figure 3 est une vue de dessous du support de fixation de l'élément de garnissage selon l'invention.
The invention will be better understood on reading the description which follows, given solely by way of example, and made with reference to the drawings among which:
  • There Figure 1 is an exploded perspective view of a trim element of a vehicle body according to the invention, taken from the outside of said vehicle.
  • There Figure 2 is a sectional view of a trim element of a vehicle body according to the invention.
  • There Figure 3 is a bottom view of the fixing support of the packing element according to the invention.

Sur la Figure 1 est représenté schématiquement un élément de garnissage 10 selon l'invention. L'élément 10 est ici un élément de garnissage d'une caisse de véhicule, notamment ferroviaire.On the Figure 1 is schematically represented a packing element 10 according to the invention. Element 10 is here a lining element of a vehicle body, in particular a railway body.

L'élément de garnissage 10 comprend une paroi métallique 12 comprenant une surface externe sur laquelle est fixée un panneau extérieur 14 au moyen d'une interface de fixation.The trim element 10 comprises a metal wall 12 comprising an external surface on which an external panel 14 is fixed by means of a fixing interface.

L'interface de fixation comprend un support de fixation 16 s'étendant en saillie de la surface externe de la paroi métallique 12, une entretoise 18 traversant le panneau extérieur 14 et un élément de fixation 20 permettant de fixer l'entretoise 18 au support de fixation 16.The fixing interface comprises a fixing support 16 extending projecting from the external surface of the metal wall 12, a spacer 18 passing through the outer panel 14 and a fixing element 20 making it possible to fix the spacer 18 to the support. fixing 16.

Dans l'exemple représenté sur la figure 1, la paroi métallique 12 est un élément de la caisse du véhicule. Ainsi, la paroi métallique 12 est par exemple une paroi de toit du véhicule ferroviaire.In the example shown on the figure 1 , the metal wall 12 is an element of the vehicle body. Thus, the metal wall 12 is for example a roof wall of the railway vehicle.

De préférence, la paroi métallique 12 est en aluminium.Preferably, the metal wall 12 is made of aluminum.

Avantageusement, le panneau extérieur 14 permet de fermer un coffre présent dans la partie supérieure de la caisse du véhicule.Advantageously, the exterior panel 14 makes it possible to close a trunk present in the upper part of the vehicle body.

De préférence, le panneau extérieur est en aluminium.Preferably, the exterior panel is made of aluminum.

De préférence, et comme visible sur la Figure 2, le support de fixation 16 présente la forme d'un pontet comprenant une surface de fixation 22 et des branches 24, de préférence deux branches 24, s'étendant de part et d'autres de la surface de fixation 22. La surface de fixation 22 est en contact avec l'entretoise 18 et les branches 24 sont fixées à la surface externe de la paroi métallique 12. Le support de fixation 16 présente ainsi une forme en « U » orientée vers la surface externe de la paroi métallique 12.Preferably, and as visible on the Figure 2 , the fixing support 16 has the shape of a bridge comprising a fixing surface 22 and branches 24, preferably two branches 24, extending on either side of the fixing surface 22. The fixing surface 22 is in contact with the spacer 18 and the branches 24 are fixed to the external surface of the metal wall 12. The fixing support 16 thus has a “U” shape oriented towards the external surface of the metal wall 12.

Avantageusement, la surface externe de la paroi métallique 12 ne comprend pas de trous pour la fixation du support 16. L'absence de trous dans la paroi métallique 12 permet ainsi d'éviter les infiltrations d'eau de l'autre côté de la paroi métallique 12, soit à l'intérieur du véhicule dans l'exemple de la figure 1.Advantageously, the external surface of the metal wall 12 does not include holes for fixing the support 16. The absence of holes in the metal wall 12 thus makes it possible to avoid water infiltration on the other side of the wall. metallic 12, or inside the vehicle in the example of the figure 1 .

De préférence, les branches 16 sont fixées à la surface externe de la paroi métallique 12 par soudage et/ou collage, de préférence par soudage.Preferably, the branches 16 are fixed to the external surface of the metal wall 12 by welding and/or bonding, preferably by welding.

Le support de fixation 16 comprend en outre une perforation 26, au niveau de la surface de fixation 22, permettant le passage de l'élément de fixation 20 à travers ledit support 16.The fixing support 16 further comprises a perforation 26, at the level of the fixing surface 22, allowing the passage of the fixing element 20 through said support 16.

Le support de fixation 16 est en aluminium.The fixing support 16 is made of aluminum.

Avantageusement, l'entretoise 18 est fixée au panneau extérieur 14, de préférence par soudage ou collage ou sertissage, notamment par soudage. L'entretoise 18 est réalisée en aluminium. La fonction de l'entretoise 18 est de maintenir un espace entre le panneau extérieur 14 et le support de fixation 16, plus particulièrement entre la surface inférieure du panneau 14 et la surface de fixation 22 du support 16.Advantageously, the spacer 18 is fixed to the exterior panel 14, preferably by welding or gluing or crimping, in particular by welding. Spacer 18 is made of aluminum. The function of the spacer 18 is to maintain a space between the exterior panel 14 and the fixing support 16, more particularly between the lower surface of the panel 14 and the fixing surface 22 of the support 16.

L'élément de garnissage 10 selon l'invention comprend en outre un élément de fixation 20. L'élément de fixation 20 traverse l'entretoise 18 pour venir se fixer au niveau du support de fixation 16. Il permet de maintenir en contact l'entretoise 18 et le support de fixation 16. Il peut par exemple consister en un ensemble de vis et écrou ou encore d'un rivet.The filling element 10 according to the invention further comprises a fixing element 20. The fixing element 20 passes through the spacer 18 to be fixed at the level of the fixing support 16. It makes it possible to keep the spacer 18 and the fixing support 16. It can for example consist of a set of screws and nuts or even a rivet.

Selon un mode de réalisation, l'élément de fixation 20 est amovible. Ce mode de réalisation est avantageux en ce qu'il permet d'accéder simplement au contenu des coffres présents dans la caisse du véhicule en retirant la paroi extérieure 14.According to one embodiment, the fixing element 20 is removable. This embodiment is advantageous in that it allows simple access to the contents of the trunks present in the body of the vehicle by removing the exterior wall 14.

Selon un mode de réalisation préféré, l'élément de fixation 20 comprend une vis 28 et un écrou 30, complémentaire de la vis 28.According to a preferred embodiment, the fixing element 20 comprises a screw 28 and a nut 30, complementary to the screw 28.

De préférence, l'écrou 30 est solidaire du support de fixation 16, en particulier l'écrou 30 est fixé au niveau de la surface de fixation 22 du support 16 de sorte que l'entretoise 18 et l'écrou 30, situés de part et d'autre du support 16, soient alignés. En particulier, l'écrou 30 est aligné avec la perforation 26 réalisée dans le support de fixation 16.Preferably, the nut 30 is integral with the fixing support 16, in particular the nut 30 is fixed at the level of the fixing surface 22 of the support 16 so that the spacer 18 and the nut 30, located on either side and other of the support 16, are aligned. In particular, the nut 30 is aligned with the perforation 26 made in the fixing support 16.

La vis 28 comprend une tête 32 et une extrémité filetée 34. La vis 28 traverse l'entretoise 18 de sorte que l'extrémité filetée 34 vienne se fixer au niveau de l'écrou 30. La tête 32 de la vis 28 fait ainsi saillie par rapport au panneau extérieur 14, notamment par rapport à la surface extérieure de l'entretoise 18.The screw 28 comprises a head 32 and a threaded end 34. The screw 28 passes through the spacer 18 so that the threaded end 34 is fixed at the level of the nut 30. The head 32 of the screw 28 thus projects with respect to the exterior panel 14, in particular with respect to the exterior surface of the spacer 18.

Selon un mode de réalisation, la vis 28 est captive de l'entretoise 18.According to one embodiment, the screw 28 is captive in the spacer 18.

Par « vis captive de l'entretoise » on entend au sens de l'invention qu'une rondelle 36, localisée à l'intérieure de l'entretoise 18, est fixée sur la vis 28. La rondelle 36 est libre de coulisser le long de la vis 28. Elle est toutefois solidaire de la vis 28 de telle sorte que l'ensemble vis 28 et rondelle 36 ne peut pas être facilement séparé de l'entretoise 18.By “captive screw of the spacer” is meant in the sense of the invention that a washer 36, located inside the spacer 18, is fixed on the screw 28. The washer 36 is free to slide along of the screw 28. It is, however, integral with the screw 28 such that the screw 28 and washer 36 assembly cannot be easily separated from the spacer 18.

De préférence, la vis 28 est en acier, avantageusement en acier revêtu d'une couche en un alliage à base de zinc et de nickel. Plus préférentiellement, la vis 28 et l'écrou 30 sont en acier revêtu d'une couche en un alliage à base de zinc et de nickel. Le couple galvanique associé au contact aluminium/alliage de zinc et de nickel est significativement plus faible que le couple galvanique associé au contact aluminium/acier inoxydable. La présence d'une couche de revêtement à base de zinc et de nickel permet donc de limiter davantage, voire de supprimer, les problèmes de corrosion susceptibles de se produire entre une pièce en aluminium et une pièce en acier inoxydable. Elle permet en outre de limiter les risques de grippage entre les éléments de fixation en acier inoxydable.Preferably, the screw 28 is made of steel, advantageously made of steel coated with a layer of an alloy based on zinc and nickel. More preferably, the screw 28 and the nut 30 are made of steel coated with a layer of an alloy based on zinc and nickel. The galvanic couple associated with the aluminum/zinc and nickel alloy contact is significantly lower than the galvanic torque associated with the aluminum/stainless steel contact. The presence of a coating layer based on zinc and nickel therefore makes it possible to further limit, or even eliminate, the corrosion problems likely to occur between an aluminum part and a stainless steel part. It also makes it possible to limit the risk of seizure between the stainless steel fixing elements.

Selon un mode de réalisation, l'élément de garnissage 10 comprend en outre au moins une rondelle 38A, 38B placée entre la tête 32 de la vis 26 et l'entretoise 18.According to one embodiment, the packing element 10 further comprises at least one washer 38A, 38B placed between the head 32 of the screw 26 and the spacer 18.

Avantageusement, l'élément de garnissage 10 comprend au moins une rondelle plate 38A, en contact avec l'entretoise 18, et au moins une rondelle conique et striée 38, placée entre la rondelle 38B et la tête 32 de la vis 28.Advantageously, the packing element 10 comprises at least one flat washer 38A, in contact with the spacer 18, and at least one conical and ribbed washer 38, placed between the washer 38B and the head 32 of the screw 28.

De préférence, les rondelles 38A, 38B sont en acier, avantageusement en acier revêtu d'une couche en un alliage à base de zinc et de nickel.Preferably, the washers 38A, 38B are made of steel, advantageously made of steel coated with a layer of an alloy based on zinc and nickel.

Comme visible sur la Figure 3, l'écrou 30 est fixée au support de fixation 16 au moyen d'une cage de fixation 40. La cage de fixation 40 permet d'immobiliser l'écrou 30 au cours du vissage ou du dévissage de la vis 28.As visible on the Figure 3 , the nut 30 is fixed to the fixing support 16 by means of a fixing cage 40. The fixing cage 40 makes it possible to immobilize the nut 30 during screwing or unscrewing of the screw 28.

De préférence, la cage de fixation 40 présente la forme d'un pontet comprenant une zone centrale 42, permettant de maintenir l'écrou 30, et des branches 44, de préférence deux branches 44, s'étendant de part et d'autres de la zone centrale 42. Les branches 44 sont fixées à la surface interne du support de fixation 16. La cage de fixation 40 présente ainsi une forme en « U » orientée vers la surface interne du support de fixation 16.Preferably, the fixing cage 40 has the shape of a bridge comprising a central zone 42, making it possible to hold the nut 30, and branches 44, preferably two branches 44, extending on either side of the central zone 42. The branches 44 are fixed to the internal surface of the fixing support 16. The fixing cage 40 thus has a “U” shape oriented towards the internal surface of the fixing support 16.

La zone centrale 42 comprend typiquement une perforation hexagonale 46, complémentaire de l'écrou 30.The central zone 42 typically comprises a hexagonal perforation 46, complementary to the nut 30.

De préférence, la cage de fixation 40 est fixée à la surface interne du support de fixation 16 au moyens de rivets 48, de préférence en aluminium.Preferably, the fixing cage 40 is fixed to the internal surface of the fixing support 16 by means of rivets 48, preferably made of aluminum.

De préférence, la cage de fixation 40 est en acier, typiquement en Magnélis®.Preferably, the fixing cage 40 is made of steel, typically Magnélis ® .

L'invention concerne également un procédé de fixation d'un panneau extérieur 14 à la surface d'une paroi métallique 12 d'une caisse de véhicule, notamment ferroviaire.The invention also relates to a method of fixing an exterior panel 14 to the surface of a metal wall 12 of a vehicle body, in particular a railway body.

Le procédé selon l'invention comprend les étapes suivantes :

  1. a) fixation d'un support de fixation 16 en aluminium en saillie de la surface externe de ladite paroi métallique 12, de préférence par soudage ou collage,
  2. b) insertion d'une entretoise 18 en aluminium au travers du panneau extérieur 14, ladite entretoise 18 étant appliquée sur le support de fixation 16 et maintenant un espace entre ledit support de fixation 16 et ledit panneau extérieur 14, et
  3. c) fixation de l'entretoise 18 au support de fixation 16.
The method according to the invention comprises the following steps:
  1. a) fixing an aluminum fixing support 16 projecting from the external surface of said metal wall 12, preferably by welding or gluing,
  2. b) insertion of an aluminum spacer 18 through the exterior panel 14, said spacer 18 being applied to the fixing support 16 and maintaining a space between said fixing support 16 and said exterior panel 14, and
  3. c) fixing the spacer 18 to the fixing support 16.

De préférence, le procédé de l'invention comprend, entre les étapes a) et b), une étape intermédiaire de perçage du panneau extérieur 14 à l'emplacement où l'entretoise 18 viendra s'insérer. Cette étape de perçage peut être réalisée par toute méthode connue de l'homme de métier.Preferably, the method of the invention comprises, between steps a) and b), an intermediate step of drilling the exterior panel 14 at the location where the spacer 18 will be inserted. This drilling step can be carried out by any method known to those skilled in the art.

L'étape c) consiste typiquement en l'insertion d'un élément de fixation 20 à travers l'entretoise 18 et à la fixation dudit élément de fixation 20 sur le support de fixation 20.Step c) typically consists of inserting a fixing element 20 through the spacer 18 and fixing said fixing element 20 on the fixing support 20.

Les modes de réalisations et les caractéristiques présentées ci-dessus en référence aux figures 1 à 3 s'appliquent à la fois à l'élément de garnissage et au procédé de fixation selon l'invention.The embodiments and characteristics presented above with reference to the figures 1 to 3 apply both to the packing element and to the fixing method according to the invention.

Ainsi, l'élément de garnissage selon l'invention permet de limiter les phénomènes de corrosion se produisant généralement au niveau de la toiture des véhicules grâce d'une part, à l'agencement des différentes pièces permettant de minimiser les zones de contact acier/aluminium, mais aussi grâce à l'existence d'une couche de revêtement à la surface des pièces en acier. La présence à la surface des éléments de fixation d'une couche d'alliage à base de zinc et de nickel permet en outre de limiter les risques de grippage. Enfin, l'invention permet de prévenir l'infiltration d'eau à l'intérieur des voitures en évitant le perçage de la paroi métallique de la caisse du véhicule.Thus, the packing element according to the invention makes it possible to limit the corrosion phenomena generally occurring at the roof of vehicles thanks on the one hand to the arrangement of the different parts making it possible to minimize the steel/contact zones. aluminum, but also thanks to the existence of a coating layer on the surface of the steel parts. The presence on the surface of the fixing elements of an alloy layer based on zinc and nickel also makes it possible to limit the risk of seizing. Finally, the invention makes it possible to prevent water infiltration inside cars by avoiding drilling the metal wall of the vehicle body.

Claims (10)

  1. A lining assembly (10) for the body of a vehicle, in particular a railway vehicle, comprising:
    - a metal wall (12) comprising an outer surface,
    - an outer panel (14) attached to the outer surface of the metal wall,
    - an interface for securing the outer panel (14) to the outer surface of the metal wall (12), the securing interface comprising an aluminium securing bracket (16) extending from the outer surface of the metal wall (12), an aluminium spacer (18) extending through the outer panel (14) and applied to the securing bracket (16), and a fastener (20) securing the spacer (18) to the securing bracket (16), said spacer maintaining a gap between the outer panel (14) and the mounting bracket (16).
  2. A lining assembly (10) according to claim 1, wherein the fixing support (16) is in the form of a bridge comprising a fixing surface (22), in contact with the spacer (18), and legs (24) extending on either side of the fixing surface (22), said support (16) being fixed to the external surface of the metal wall (12) by its legs (24).
  3. A lining assembly (10) according to claim 1 or claim 2, in which the fixing support (16) is fixed to the outer surface of the metal wall (12) by welding or bonding, preferably by welding.
  4. A lining assembly (10) according to any one of the preceding claims, wherein the fixing element (20) comprises a screw (28) and a nut (30) in addition to said screw (28).
  5. A lining assembly (10) according to claim 4, in which the nut (30) is integral with the fixing support (16), preferably is fixed at the fixing surface (22) of the support (16).
  6. A lining assembly (10) according to any one of claims 4 and 5, in which the screw (28), and optionally the nut (30), are made of steel, preferably steel coated with a layer of a zinc- and nickel-based alloy.
  7. A lining assembly (10) according to any one of the preceding claims, further comprising at least one washer (38A, 38B) placed between a head (32) of the fixing element (20) and the spacer (18), the said washer preferably being made of steel, more preferably of steel coated with a layer of a zinc- and nickel-based alloy.
  8. A lining assembly (10) according to any one of the preceding claims, wherein the outer panel (14) is aluminium.
  9. A lining assembly (10) according to any one of the preceding claims, in which the metal wall (12) is a roof wall of a vehicle, in particular a railway vehicle.
  10. A method of fixing an outer panel (14) to the surface of a metal wall (12) of a vehicle body, in particular a railway body, the method comprising the following steps:
    a) fixing of an aluminium fixing support (16) projecting from the outer surface of said metal wall (12), preferably by welding or gluing,
    b) inserting an aluminium spacer (18) through the outer panel (14), said spacer (18) being applied to the mounting bracket (16) and maintaining a gap between said mounting bracket (16) and said outer panel (14), and
    c) fixing the spacer (18) to the mounting bracket (16).
EP22178735.1A 2021-06-14 2022-06-13 Trim assembly for a vehicle body, in particular a railway vehicle Active EP4105096B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR2106248A FR3123870B1 (en) 2021-06-14 2021-06-14 Packing assembly for a vehicle body, in particular railway

Publications (2)

Publication Number Publication Date
EP4105096A1 EP4105096A1 (en) 2022-12-21
EP4105096B1 true EP4105096B1 (en) 2023-11-01

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ID=76730890

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Application Number Title Priority Date Filing Date
EP22178735.1A Active EP4105096B1 (en) 2021-06-14 2022-06-13 Trim assembly for a vehicle body, in particular a railway vehicle

Country Status (2)

Country Link
EP (1) EP4105096B1 (en)
FR (1) FR3123870B1 (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011006465A1 (en) * 2011-03-30 2012-10-04 Bombardier Transportation Gmbh Retainer for nut and thread carrier having the retaining stone
FR3011216B1 (en) * 2013-10-02 2015-09-04 Renault Sas DEVICE FOR RETRACTING PLAY BETWEEN TWO PLATES

Also Published As

Publication number Publication date
FR3123870B1 (en) 2023-06-16
FR3123870A1 (en) 2022-12-16
EP4105096A1 (en) 2022-12-21

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