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EP1215098A1 - Railway vehicle with an operator's cab comprising a structure for absorbing energy during a collision above the vehicle chassis - Google Patents

Railway vehicle with an operator's cab comprising a structure for absorbing energy during a collision above the vehicle chassis Download PDF

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Publication number
EP1215098A1
EP1215098A1 EP01403037A EP01403037A EP1215098A1 EP 1215098 A1 EP1215098 A1 EP 1215098A1 EP 01403037 A EP01403037 A EP 01403037A EP 01403037 A EP01403037 A EP 01403037A EP 1215098 A1 EP1215098 A1 EP 1215098A1
Authority
EP
European Patent Office
Prior art keywords
chassis
protective shield
vehicle according
vehicle
energy absorbing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP01403037A
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German (de)
French (fr)
Other versions
EP1215098B1 (en
Inventor
Marcel Godin
Gérard Gielczinski
Christian Boneill
Isabelle Guilloteau
Jean-Marc Langlet
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.)
Alstom Transport Technologies SAS
Original Assignee
Alstom SA
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 Alstom SA filed Critical Alstom SA
Priority to DK01403037T priority Critical patent/DK1215098T3/en
Publication of EP1215098A1 publication Critical patent/EP1215098A1/en
Application granted granted Critical
Publication of EP1215098B1 publication Critical patent/EP1215098B1/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61C—LOCOMOTIVES; MOTOR RAILCARS
    • B61C17/00—Arrangement or disposition of parts; Details or accessories not otherwise provided for; Use of control gear and control systems
    • B61C17/04—Arrangement or disposition of driving cabins, footplates or engine rooms; Ventilation thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D15/00—Other railway vehicles, e.g. scaffold cars; Adaptations of vehicles for use on railways
    • B61D15/06—Buffer cars; Arrangements or construction of railway vehicles for protecting them in case of collisions
    • 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
    • B61D17/06—End walls

Definitions

  • the invention relates to the field of vehicle construction, in particular of railway vehicles with driver's cab, and has as its object such a vehicle comprising an energy absorbing structure ensuring protection of the conductor of the vehicle in the event of a collision.
  • such a structure is provided to absorb the energy of a major shock. at the level of the vehicle chassis rails, but is not suitable for impact with an obstacle striking the driver's cab of the railway vehicle at above the chassis level.
  • Such a case can arise during a direct impact with an obstacle striking the rail vehicle near the driver's cab but also during an impact with an obstacle for which the absorbing elements of the chassis are oversized to ensure good absorption of the shock.
  • the significant rigidity of the chassis and the shape plunging from the end of the train most often lead to the lifting of the obstacle struck which then strikes the driver's cabin causing uncontrolled deformations of the latter, endangering the life of the driver.
  • the present invention aims to overcome these drawbacks by proposing a railway vehicle whose driver's cab has a protective shield which is suitable for absorbing the energy of a shock with an obstacle striking the driver's cabin above the level of the vehicle chassis rails and which is simple and economical to make.
  • the subject of the invention is a rail vehicle comprising an end provided a driver's cab, the vehicle comprising a rigid chassis extending under the driver's cab, characterized in that it includes a protective shield arranged in front of the driver's cab and provided with a rigid structure, the shield protection resting on the chassis and being connected to the chassis by means of less an energy absorbing element interposed locally between the shield and the frame.
  • FIG. 1 represents the front end of a railway vehicle comprising a rigid non-deformable chassis 1 ensuring the rigidity of the vehicle and a skin 5 providing the aesthetic envelope of the vehicle and supporting a windshield 9.
  • the vehicle is fitted with a driver's cab fitted with a structure for driver protection, shown exploded in Figure 2, interposed between the part of the skin 5 defining the front face of the vehicle and the interior of the cabin conduct.
  • This structure includes a rigid, non-deformable protective shield 3, having a front wall 3a extending vertically over substantially the entire driver's cabin height and having two side walls 3b extending laterally on each side of the driver's cab.
  • the front wall 3a is provided a large opening 10 facing the windshield 9 of the vehicle providing a good field vision to the driver.
  • the protective shield 3 includes a sole 3c resting on a flat surface of the chassis 1 and has two arms guide 11 respectively extending the two side walls 3b of the shield protection 3 down.
  • Each guide arm 11 extends vertically to near a beam 1b of the chassis 1 and has a lower end provided a rim 15 extending under the beam 1b to form an anti-lifting stop preventing the lifting of the protective shield 3 from the chassis 1.
  • the protective shield 3 is connected longitudinally to the chassis 1 at the level of each guide arm 11 by a deformable spacer 6 interposed between a face rear 11a of the guide arm 11 and a bearing face 1c belonging to a shoulder of the chassis 1 disposed opposite the rear face 11a of the guide arm 11.
  • the deformable spacer 6 is presented advantageously in the form of plastic deformation plate assemblies programmed, each longitudinal end of which is provided with a flange allowing its fixing by bolting.
  • the protective shield 3 also has, in its upper part, two beams link 12 extending towards the rear of the vehicle and connected to a ring of structure, not shown in the figures, supported by the chassis 1 of the vehicle.
  • the two connecting beams 12 are made up of deformation plate assemblies programmed plastic forming energy absorbing elements with mechanical resistance substantially equivalent to that of spacers 6 deformable.
  • the holding of the protective shield 3 on the chassis 1 is ensured locally by fuse bolts not shown in the figures.
  • the front face of the front wall 3a of the shield protection 3 supports a set of 7 protruding energy absorbers towards the front of the vehicle.
  • the resistance properties mechanical of the boxes 7 energy absorbers are lower than that of the spacers 6 and connecting beams 12 causing, in the event of an impact, a progressive deformation of all the boxes 7 energy absorbers before causing the deformation spacers 6 and connecting beams 12.
  • the front end of the chassis 1 of the vehicle is conventionally provided with two anti-overlap stops 8 energy absorbers arranged in the extension side members 1b, on either side of an automatic coupling 13 consisting of a head coupling connected to a head cross member of chassis 1 via an element energy absorber.
  • Anti-overlap stops 8 energy absorbers have very high mechanical strength properties, which are suitable for absorb the amounts of energy involved in an impact with another vehicle rail.
  • FIG. 4 illustrates the deformation of the structure of the vehicle previously described after an impact with an obstacle which struck the front face of the vehicle above the level of the side members 1b of the chassis 1, substantially at the height of the boxes 7 energy absorbers supported by the front face of the protective shield 3.
  • the 7 absorber boxes of the front face of the protective shield 3 are crushed, thus absorbing part of the shock energy and the residual shock energy is absorbed by the progressive deformation of the spacers 6 and the connecting beams 12, causing a rearward movement of the protective shield 3 relative to the chassis 1, the protective shield 3 being guided on the chassis 1 throughout its movement by the two guide arms 11.
  • Such a progressive displacement of the protective shield 3 makes it possible to absorb impact energy while maintaining the integrity of the protective shield 3, which provides survival space for the driver who is permanently sheltered behind the protective shield 3.
  • the recoil of the protective shield 3 is carried out on a stroke which cannot be greater than one maximum stroke given, the support face 1 c of the chassis 1 cooperating with the arms of guide 11 to block the movement of the shield 3 beyond the normal range absorption by crushing the spacers 6.
  • the latter is arranged so that the retraction of the protective shield 3 on the crushing range of spacers 6 does not cause injury to the driver.
  • the vehicle control panel not shown, is advantageously attached to the protective shield 3 so that it remains intact during the impact thus avoiding any deformation or projection of elements.
  • the driver's seat may also be secured to the protective shield 3 so as to move simultaneously with the protective shield.
  • Such a vehicle therefore has the advantage of ensuring high safety for the driver by allowing the absorption of a shock taking place directly at the height of the cabin by the controlled recoil of the protective shield, the latter retaining its integrity constantly ensuring its function as a protective shield.
  • Such a vehicle also has the advantage of having a rigid, non-deformable chassis. which extends to near the front of the vehicle. It is thus possible to fix an obstacle guard, not shown in the figures, near the front of the vehicle by fixing it directly under the rigid chassis, thus preventing it from disrupts the behavior of the vehicle.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Automation & Control Theory (AREA)
  • Body Structure For Vehicles (AREA)
  • Vibration Dampers (AREA)
  • Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)

Abstract

The railway vehicle comprises a rigid chassis (1) extending under the driver's cab. It comprises a protection shield (3), located in front of the cab, provided with a rigid structure. The shield rests on the chassis and is connected to it by an energy absorbing element (6) interposed between it and the chassis.

Description

L'invention se rapporte au domaine de la construction de véhicules, en particulier de véhicules ferroviaires à cabine de conduite, et a pour objet un tel véhicule comportant une structure absorbeuse d'énergie assurant la protection du conducteur du véhicule en cas de collision.The invention relates to the field of vehicle construction, in particular of railway vehicles with driver's cab, and has as its object such a vehicle comprising an energy absorbing structure ensuring protection of the conductor of the vehicle in the event of a collision.

Les véhicules ferroviaires existant actuellement sont équipés à leurs extrémités de moyens destinés à supporter les sollicitations que subit le véhicule en conditions normales de circulation et lors de chocs à faible vitesse, dits chocs "d'accostage".Currently existing rail vehicles are equipped at their ends with means intended to withstand the stresses to which the vehicle is subjected under conditions normal traffic and during shocks at low speed, called "docking" shocks.

Il est également connu, du document FR-A-2 698 840, d'équiper les véhicules ferroviaires à cabine de conduite d'une structure métallique absorbeuse d'énergie ayant pour fonction de protéger les passagers et le conducteur du véhicule en cas de chocs importants, par exemple lors d'une collision avec un autre train. Le véhicule comporte alors des zones de déformation plastique dynamique, formées d'éléments absorbeurs d'énergie fixes ou interchangeables, prévues aux extrémités du véhicule.It is also known from document FR-A-2 698 840 to equip vehicles railway cabs for driving an energy-absorbing metal structure whose function is to protect passengers and the driver of the vehicle in the event of severe shocks, for example during a collision with another train. The vehicle then comprises zones of dynamic plastic deformation, formed of elements fixed or interchangeable energy absorbers, provided at the ends of the vehicle.

Cependant, une telle structure est prévue pour absorber l'énergie d'un choc important au niveau des longerons du châssis du véhicule, mais n'est pas adaptée pour un choc avec un obstacle venant percuter la cabine de conduite du véhicule ferroviaire au dessus du niveau du châssis. Un tel cas peut se présenter lors d'un choc direct avec un obstacle venant heurter le véhicule ferroviaire à hauteur de la cabine de conduite mais également lors d'un choc avec un obstacle pour lequel les éléments absorbeurs d'énergie du châssis sont surdimensionnés pour assurer une bonne absorption du choc. En effet, dans un tel cas, la rigidité importante du châssis et la forme plongeante de l'extrémité du train conduisent le plus souvent au soulèvement de l'obstacle percuté qui vient alors frapper la cabine de conduite en provoquant des déformations non contrôlées de cette dernière, mettant en danger la vie du conducteur. However, such a structure is provided to absorb the energy of a major shock. at the level of the vehicle chassis rails, but is not suitable for impact with an obstacle striking the driver's cab of the railway vehicle at above the chassis level. Such a case can arise during a direct impact with an obstacle striking the rail vehicle near the driver's cab but also during an impact with an obstacle for which the absorbing elements of the chassis are oversized to ensure good absorption of the shock. Indeed, in such a case, the significant rigidity of the chassis and the shape plunging from the end of the train most often lead to the lifting of the obstacle struck which then strikes the driver's cabin causing uncontrolled deformations of the latter, endangering the life of the driver.

La présente invention a pour but de pallier ces inconvénients en proposant un véhicule ferroviaire dont la cabine de conduite comporte un bouclier de protection qui soit adapté pour absorber l'énergie d'un choc avec un obstacle venant percuter la cabine de conduite au dessus du niveau des longerons du châssis du véhicule et qui soit simple et économique à réaliser.The present invention aims to overcome these drawbacks by proposing a railway vehicle whose driver's cab has a protective shield which is suitable for absorbing the energy of a shock with an obstacle striking the driver's cabin above the level of the vehicle chassis rails and which is simple and economical to make.

L'invention a pour objet un véhicule ferroviaire comportant une extrémité munie d'une cabine de conduite, le véhicule comportant un châssis rigide s'étendant sous la cabine de conduite, caractérisé en ce qu'il comporte un bouclier de protection disposé devant la cabine de conduite et muni d'une structure rigide, le bouclier de protection reposant sur le châssis et étant relié au châssis par l'intermédiaire d'au moins un élément absorbeur d'énergie interposé localement entre le bouclier et le châssis.The subject of the invention is a rail vehicle comprising an end provided a driver's cab, the vehicle comprising a rigid chassis extending under the driver's cab, characterized in that it includes a protective shield arranged in front of the driver's cab and provided with a rigid structure, the shield protection resting on the chassis and being connected to the chassis by means of less an energy absorbing element interposed locally between the shield and the frame.

Selon des modes particuliers de réalisation, le véhicule ferroviaire selon l'invention peut comprendre l'une ou plusieurs des caractéristiques suivantes prises isolément ou selon toutes les combinaisons techniquement possibles :

  • le ou les éléments absorbeurs d'énergie relient longitudinalement le bouclier de protection au châssis de manière à permettre un déplacement du bouclier de protection par rapport au châssis suivant la direction longitudinale du véhicule, par déformation du ou des éléments absorbeurs d'énergie lors d'un choc frontal ;
  • le châssis et le bouclier de protection possèdent, au niveau de leur interface, des formes complémentaires constituant un dispositif de guidage de type glissière suivant la direction longitudinale du véhicule ;
  • le bouclier de protection est constitué d'une structure rigide s'étendant verticalement sur la hauteur de la cabine de conduite et comportant une ouverture en regard du pare-brise du véhicule ;
  • le bouclier de protection s'étend également latéralement sur les cotés de la cabine de conduite pour former une structure enveloppante ;
  • le bouclier de protection et le châssis sont localement reliés directement l'un à l'autre par des éléments de fixations fusibles ;
  • la partie supérieure du bouclier de protection est reliée, par l'intermédiaire d'éléments absorbeurs d'énergie, à des éléments de structure solidaires du châssis ;
  • la face avant du bouclier de protection supporte des éléments absorbeurs d'énergie s'étendant en direction de l'extrémité avant du véhicule ;
  • l'extrémité avant du châssis supporte des éléments absorbeurs d'énergie ;
  • le ou les éléments absorbeurs d'énergie sont constitués par des structures à déformation programmée ;
  • l'extrémité avant du châssis supporte un chasse-obstacle.
According to particular embodiments, the rail vehicle according to the invention can comprise one or more of the following characteristics taken in isolation or according to all technically possible combinations:
  • the energy absorbing element or elements connect the protective shield longitudinally to the chassis so as to allow the protective shield to move relative to the chassis in the longitudinal direction of the vehicle, by deformation of the energy absorbing element (s) during frontal impact;
  • the chassis and the protective shield have, at their interface, complementary shapes constituting a guide device of the slide type in the longitudinal direction of the vehicle;
  • the protective shield consists of a rigid structure extending vertically over the height of the driver's cabin and comprising an opening opposite the vehicle windshield;
  • the protective shield also extends laterally on the sides of the driving cabin to form an enveloping structure;
  • the protective shield and the chassis are locally connected directly to each other by fusible fastening elements;
  • the upper part of the protective shield is connected, by means of energy absorbing elements, to structural elements integral with the chassis;
  • the front face of the protective shield supports energy absorbing elements extending towards the front end of the vehicle;
  • the front end of the chassis supports energy absorbing elements;
  • the energy-absorbing element or elements consist of structures with programmed deformation;
  • the front end of the chassis supports an obstacle barrier.

On comprendra mieux les buts, aspects et avantages de la présente invention, d'après la description donnée ci-après d'un mode particulier de réalisation de l'invention, présenté à titre d'exemple non limitatif, en se référant aux dessins annexés, dans lesquels :

  • La figure 1 est une vue en perspective d'une extrémité de véhicule ferroviaire, partiellement éclatée, équipé d'une structure conforme à l'invention ;
  • La figure 2 est une vue éclatée en perspective à plus grande échelle d'une partie de la structure formant l'extrémité avant du véhicule de la figure 1;
  • La figure 3 est une vue en perspective de la structure formant l'extrémité avant du véhicule de la figure 1 avant un choc ;
  • La figure 4 est une vue analogue à celle de la figure 3 après un choc à hauteur de la cabine de conduite du véhicule ferroviaire.
The aims, aspects and advantages of the present invention will be better understood from the description given below of a particular embodiment of the invention, presented by way of nonlimiting example, with reference to the accompanying drawings. , wherein :
  • Figure 1 is a perspective view of an end of a rail vehicle, partially exploded, equipped with a structure according to the invention;
  • Figure 2 is an exploded perspective view on a larger scale of a part of the structure forming the front end of the vehicle of Figure 1;
  • Figure 3 is a perspective view of the structure forming the front end of the vehicle of Figure 1 before an impact;
  • Figure 4 is a view similar to that of Figure 3 after an impact at the height of the driver's cabin of the rail vehicle.

Pour faciliter la lecture du dessin, seuls les éléments nécessaires à la compréhension de l'invention ont été représentés. Les mêmes éléments portent les mêmes références d'une figure à l'autre.To make the drawing easier to read, only the elements necessary for understanding of the invention have been shown. The same elements have the same references from one figure to another.

La figure 1 représente l'extrémité avant d'un véhicule ferroviaire comportant un châssis 1 rigide indéformable assurant la rigidité du véhicule et une peau 5 réalisant l'enveloppe esthétique du véhicule et supportant un pare-brise 9. FIG. 1 represents the front end of a railway vehicle comprising a rigid non-deformable chassis 1 ensuring the rigidity of the vehicle and a skin 5 providing the aesthetic envelope of the vehicle and supporting a windshield 9.

Le véhicule est équipé d'une cabine de conduite munie d'une structure pour la protection du conducteur, représentée en éclatée sur la figure 2, s'interposant entre la partie de la peau 5 définissant la face avant du véhicule et l'intérieur de la cabine de conduite. Cette structure comporte un bouclier de protection 3 rigide, indéformable, présentant une paroi frontale 3a s'étendant verticalement sur sensiblement toute la hauteur de la cabine de conduite et présentant deux parois latérales 3b s'étendant latéralement de chaque côté de la cabine de conduite. La paroi frontale 3a est munie d'une large ouverture 10 en regard du pare-brise 9 du véhicule offrant un bon champ de vision au conducteur.The vehicle is fitted with a driver's cab fitted with a structure for driver protection, shown exploded in Figure 2, interposed between the part of the skin 5 defining the front face of the vehicle and the interior of the cabin conduct. This structure includes a rigid, non-deformable protective shield 3, having a front wall 3a extending vertically over substantially the entire driver's cabin height and having two side walls 3b extending laterally on each side of the driver's cab. The front wall 3a is provided a large opening 10 facing the windshield 9 of the vehicle providing a good field vision to the driver.

Conformément aux figures 2 et 3, le bouclier de protection 3 comporte une semelle 3c reposant sur une surface supérieure la plane du châssis 1 et comporte deux bras de guidage 11 prolongeant respectivement les deux parois latérales 3b du bouclier de protection 3 vers le bas. Chaque bras de guidage 11 s'étend verticalement à proximité d'un longeron 1b du châssis 1 et présente une extrémité inférieure munie d'un rebord 15 s'étendant sous le longeron 1b pour former une butée anti-soulèvement empêchant le soulèvement du bouclier de protection 3 par rapport au châssis 1.In accordance with Figures 2 and 3, the protective shield 3 includes a sole 3c resting on a flat surface of the chassis 1 and has two arms guide 11 respectively extending the two side walls 3b of the shield protection 3 down. Each guide arm 11 extends vertically to near a beam 1b of the chassis 1 and has a lower end provided a rim 15 extending under the beam 1b to form an anti-lifting stop preventing the lifting of the protective shield 3 from the chassis 1.

Le bouclier de protection 3 est relié longitudinalement au châssis 1 au niveau de chaque bras de guidage 11 par une entretoise déformable 6 interposée entre une face arrière 11a du bras de guidage 11 et une face d'appui 1c appartenant à un épaulement du châssis 1 disposé en regard de la face arrière 11a du bras de guidage 11. Dans l'exemple de réalisation représenté, l'entretoise déformable 6 se présente avantageusement sous la forme d'assemblages de tôles à déformation plastique programmée, dont chaque extrémité longitudinale est munie d'une collerette permettant sa fixation par boulonnage.The protective shield 3 is connected longitudinally to the chassis 1 at the level of each guide arm 11 by a deformable spacer 6 interposed between a face rear 11a of the guide arm 11 and a bearing face 1c belonging to a shoulder of the chassis 1 disposed opposite the rear face 11a of the guide arm 11. In the embodiment shown, the deformable spacer 6 is presented advantageously in the form of plastic deformation plate assemblies programmed, each longitudinal end of which is provided with a flange allowing its fixing by bolting.

Le bouclier de protection 3 comporte également, dans sa partie haute, deux poutres de liaison 12 s'étendant en direction de l'arrière du véhicule et reliées à un anneau de structure, non représenté sur les figures, supporté par le châssis 1 du véhicule. Les deux poutres de liaison 12 sont constituées d'assemblages de tôles à déformation plastique programmée formant des éléments absorbeurs d'énergie à propriétés de résistance mécanique sensiblement équivalentes à celles des entretoises 6 déformables.The protective shield 3 also has, in its upper part, two beams link 12 extending towards the rear of the vehicle and connected to a ring of structure, not shown in the figures, supported by the chassis 1 of the vehicle. The two connecting beams 12 are made up of deformation plate assemblies programmed plastic forming energy absorbing elements with mechanical resistance substantially equivalent to that of spacers 6 deformable.

Avantageusement, la tenue du bouclier de protection 3 sur le châssis 1 est assurée localement par des boulons fusibles non représentés sur les figures.Advantageously, the holding of the protective shield 3 on the chassis 1 is ensured locally by fuse bolts not shown in the figures.

Conformément à la figure 3, la face avant de la paroi frontale 3a du bouclier de protection 3 supporte un ensemble de caissons 7 absorbeurs d'énergie faisant sailli vers la face avant du véhicule. De manière préférentielle, les propriétés de résistance mécanique des caissons 7 absorbeurs d'énergie sont inférieures à celle des entretoises 6 et des poutres de liaison 12 entraínant, en cas de choc, une déformation progressive de l'ensemble des caissons 7 absorbeurs d'énergie avant d'entraíner la déformation des entretoises 6 et des poutres de liaison 12.In accordance with FIG. 3, the front face of the front wall 3a of the shield protection 3 supports a set of 7 protruding energy absorbers towards the front of the vehicle. Preferably, the resistance properties mechanical of the boxes 7 energy absorbers are lower than that of the spacers 6 and connecting beams 12 causing, in the event of an impact, a progressive deformation of all the boxes 7 energy absorbers before causing the deformation spacers 6 and connecting beams 12.

L'extrémité avant du châssis 1 du véhicule est munie de manière classique de deux butées antichevauchements 8 absorbeurs d'énergie disposés dans le prolongement des longerons 1b, de part et d'autre d'un attelage automatique 13 constitué d'une tête d'attelage relié à une traverse de tête du châssis 1 par l'intermédiaire d'un élément absorbeur d'énergie. Les butées antichevauchements 8 absorbeurs d'énergie possèdent des propriétés de résistance mécanique très élevées, qui sont adaptées pour amortir les quantités d'énergie mises en jeu lors d'un choc avec un autre véhicule ferroviaire.The front end of the chassis 1 of the vehicle is conventionally provided with two anti-overlap stops 8 energy absorbers arranged in the extension side members 1b, on either side of an automatic coupling 13 consisting of a head coupling connected to a head cross member of chassis 1 via an element energy absorber. Anti-overlap stops 8 energy absorbers have very high mechanical strength properties, which are suitable for absorb the amounts of energy involved in an impact with another vehicle rail.

La figure 4 illustre la déformation de la structure du véhicule précédemment décrit après un choc avec un obstacle ayant percuté la face avant du véhicule au dessus du niveau des longerons 1b du châssis 1, sensiblement à hauteur des caissons 7 absorbeurs d'énergie supportés par la face avant du bouclier de protection 3.FIG. 4 illustrates the deformation of the structure of the vehicle previously described after an impact with an obstacle which struck the front face of the vehicle above the level of the side members 1b of the chassis 1, substantially at the height of the boxes 7 energy absorbers supported by the front face of the protective shield 3.

Conformément à cette figure, lors d'un tel impact, les caissons 7 absorbeurs d'énergie de la face avant du bouclier de protection 3 sont écrasés, absorbant ainsi une partie de l'énergie du choc et l'énergie résiduelle du choc est absorbée par la déformation progressive des entretoises 6 et des poutres de liaison 12, entraínant un déplacement vers l'arrière du bouclier de protection 3 relativement au châssis 1, le bouclier de protection 3 étant guidé sur le châssis 1 tout au long de son déplacement par les deux bras de guidage 11.According to this figure, during such an impact, the 7 absorber boxes of the front face of the protective shield 3 are crushed, thus absorbing part of the shock energy and the residual shock energy is absorbed by the progressive deformation of the spacers 6 and the connecting beams 12, causing a rearward movement of the protective shield 3 relative to the chassis 1, the protective shield 3 being guided on the chassis 1 throughout its movement by the two guide arms 11.

Un tel déplacement progressif du bouclier de protection 3 permet d'absorber l'énergie du choc tout en conservant l'intégrité du bouclier de protection 3, ce qui assure un espace de survie pour le conducteur qui est en permanence à l'abri derrière le bouclier de protection 3. Comme on peut le voir sur cette figure, le recul du bouclier de protection 3 s'effectue sur une course qui ne peut être supérieure à une course maximale donnée, la face d'appui 1 c du châssis 1 coopérant avec les bras de guidage 11 pour bloquer le déplacement du bouclier 3 au-delà de la plage normale d'absorption par écrasement des entretoises 6.Such a progressive displacement of the protective shield 3 makes it possible to absorb impact energy while maintaining the integrity of the protective shield 3, which provides survival space for the driver who is permanently sheltered behind the protective shield 3. As can be seen in this figure, the recoil of the protective shield 3 is carried out on a stroke which cannot be greater than one maximum stroke given, the support face 1 c of the chassis 1 cooperating with the arms of guide 11 to block the movement of the shield 3 beyond the normal range absorption by crushing the spacers 6.

Pour assurer une grande sécurité à l'intérieur de la cabine de conduite 1, cette dernière est aménagée de manière à ce que le recul du bouclier de protection 3 sur la plage d'écrasement des entretoises 6 n'entraíne pas de blessure du conducteur. Ainsi, le pupitre de commande du véhicule, non représenté, est avantageusement fixé au bouclier de protection 3 afin qu'il reste intègre lors du choc évitant ainsi toute déformation ou projection d'éléments. Le siège du conducteur pourra également être solidaire du bouclier de protection 3 de manière à se déplacer simultanément avec le bouclier de protection.To ensure high security inside the driver's cab 1, this the latter is arranged so that the retraction of the protective shield 3 on the crushing range of spacers 6 does not cause injury to the driver. So, the vehicle control panel, not shown, is advantageously attached to the protective shield 3 so that it remains intact during the impact thus avoiding any deformation or projection of elements. The driver's seat may also be secured to the protective shield 3 so as to move simultaneously with the protective shield.

Un tel véhicule présente donc l'avantage d'assurer une grande sécurité au conducteur en permettant l'absorption d'un choc ayant lieu directement à hauteur de la cabine par le recul contrôlé du bouclier de protection, ce dernier en conservant son intégrité assurant constamment sa fonction de bouclier protecteur.Such a vehicle therefore has the advantage of ensuring high safety for the driver by allowing the absorption of a shock taking place directly at the height of the cabin by the controlled recoil of the protective shield, the latter retaining its integrity constantly ensuring its function as a protective shield.

Un tel véhicule présente également l'avantage d'avoir un châssis rigide indéformable qui s'étend jusqu'à proximité de la face avant du véhicule. Il est ainsi possible de fixer un chasse-obstacle, non représenté sur les figures, à proximité de l'avant du véhicule en le fixant directement sous le châssis rigide, évitant ainsi que cela ne perturbe le comportement du véhicule.Such a vehicle also has the advantage of having a rigid, non-deformable chassis. which extends to near the front of the vehicle. It is thus possible to fix an obstacle guard, not shown in the figures, near the front of the vehicle by fixing it directly under the rigid chassis, thus preventing it from disrupts the behavior of the vehicle.

Bien entendu, l'invention n'est nullement limitée au mode de réalisation décrit et illustré qui n'a été donné qu'à titre d'exemple. Des modifications restent possibles, notamment du point de vue de la constitution des divers éléments ou par substitution d'équivalents techniques, sans sortir pour autant du domaine de protection de l'invention.Of course, the invention is in no way limited to the embodiment described and illustrated which has been given only as an example. Modifications are still possible, in particular from the point of view of the constitution of the various elements or by substitution of technical equivalents, without however leaving the field of protection of the invention.

Claims (11)

Véhicule ferroviaire comportant une extrémité munie d'une cabine de conduite, ledit véhicule comportant un châssis (1) rigide s'étendant sous ladite cabine de conduite, caractérisé en ce qu'il comporte un bouclier de protection (3) disposé devant ladite cabine de conduite et muni d'une structure rigide, ledit bouclier de protection (3) reposant sur ledit châssis (1) et étant relié audit châssis (1) par l'intermédiaire d'au moins un élément absorbeur d'énergie (6) interposé localement entre le bouclier (3) et le châssis (1).Railway vehicle comprising one end provided with a driving cabin, said vehicle comprising a rigid chassis (1) extending under said driving cabin, characterized in that it comprises a protective shield (3) disposed in front of said driving cabin pipe and provided with a rigid structure, said protective shield (3) resting on said chassis (1) and being connected to said chassis (1) by means of at least one energy absorbing element (6) interposed locally between the shield (3) and the chassis (1). Véhicule ferroviaire selon la revendication 1, caractérisé en ce que le ou lesdits éléments absorbeurs d'énergie (6) relient longitudinalement le bouclier de protection (3) au châssis (1) de manière à permettre un déplacement du bouclier de protection (3) par rapport audit châssis (1) suivant la direction longitudinale du véhicule par déformation du ou desdits éléments absorbeurs d'énergie (6) lors d'un choc frontal.Railway vehicle according to claim 1, characterized in that the said energy-absorbing element (s) (6) connect the protective shield (3) longitudinally to the chassis (1) so as to allow the protective shield (3) to be displaced by report to said chassis (1) in the longitudinal direction of the vehicle by deformation of said energy absorbing element (s) (6) during a frontal impact. Véhicule ferroviaire selon la revendication 2, caractérisé en ce que ledit châssis (1) et ledit bouclier de protection (3) possèdent, au niveau de leur interface, des formes complémentaires constituant un dispositif de guidage de type glissière suivant la direction longitudinale du véhicule.Rail vehicle according to claim 2, characterized in that said chassis (1) and said protective shield (3) have, at their interface, complementary shapes constituting a guide device of the slide type in the longitudinal direction of the vehicle. Véhicule ferroviaire selon l'une quelconque des revendications 1 à 3, caractérisé en ce que le bouclier de protection (3) est constitué d'une structure rigide s'étendant verticalement sur la hauteur de la cabine de conduite et comportant une ouverture (10) en regard du pare-brise (9) du véhicule.Rail vehicle according to any one of Claims 1 to 3, characterized in that the protective shield (3) consists of a rigid structure extending vertically over the height of the driver's cab and comprising an opening (10) facing the windshield (9) of the vehicle. Véhicule ferroviaire selon la revendication 4, caractérisé en ce que le bouclier de protection (3) s'étend également latéralement sur les cotés de la cabine de conduite pour former une structure enveloppante.Railway vehicle according to claim 4, characterized in that the protective shield (3) also extends laterally on the sides of the driving cabin to form an enveloping structure. Véhicule ferroviaire selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le bouclier de protection (3) et le châssis (1) sont localement reliés directement l'un à l'autre par des éléments de fixations fusibles.Rail vehicle according to any one of Claims 1 to 5, characterized in that the protective shield (3) and the chassis (1) are locally connected directly to one another by fusible fastening elements. Véhicule ferroviaire selon l'une quelconque des revendications 1 à 6, caractérisé en ce que la partie supérieure du bouclier de protection (3) est reliée, par l'intermédiaire d'éléments absorbeurs d'énergie (12), à des éléments de structure solidaires dudit châssis (1).Railway vehicle according to any one of Claims 1 to 6, characterized in that the upper part of the protective shield (3) is connected, by means of energy absorbing elements (12), to structural elements integral with said chassis (1). Véhicule ferroviaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la face avant du bouclier de protection (3) supporte des éléments absorbeurs d'énergie (7) s'étendant en direction de l'extrémité avant du véhicule.Railway vehicle according to any one of the preceding claims, characterized in that the front face of the protective shield (3) supports energy absorbing elements (7) extending towards the front end of the vehicle. Véhicule ferroviaire selon l'une quelconque des revendications 1 à 8, caractérisé en ce que l'extrémité avant du châssis (1) supporte des éléments absorbeurs d'énergie (8).Rail vehicle according to any one of claims 1 to 8, characterized in that the front end of the chassis (1) supports energy absorbing elements (8). Véhicule ferroviaire selon l'une quelconque des revendications 1 à 9, caractérisé en ce que lesdits éléments absorbeurs d'énergie (6,7,8,12) sont constitués par des structures à déformation programmée.Railway vehicle according to any one of claims 1 to 9, characterized in that said energy absorbing elements (6,7,8,12) are constituted by structures with programmed deformation. Véhicule ferroviaire selon l'une quelconque des revendications 1 à 10, caractérisé en ce que l'extrémité avant du châssis (1) supporte un chasse-obstacle.Rail vehicle according to any one of Claims 1 to 10, characterized in that the front end of the chassis (1) supports an obstacle barrier.
EP01403037A 2000-12-18 2001-11-27 Railway vehicle with an operator's cab comprising a structure for absorbing energy during a collision above the vehicle chassis Expired - Lifetime EP1215098B1 (en)

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DK01403037T DK1215098T3 (en) 2000-12-18 2001-11-27 Railway vehicle with driver's cab comprising an energy-absorbing structure adapted to a collision over the vehicle's chassis

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FR0016493A FR2818224B1 (en) 2000-12-18 2000-12-18 RAIL VEHICLE WITH DRIVING CABIN COMPRISING AN ENERGY ABSORBING STRUCTURE SUITABLE FOR COLLISION ABOVE THE VEHICLE CHASSIS
FR0016493 2000-12-18

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JP (1) JP4044758B2 (en)
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AU (1) AU779020B2 (en)
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DE (1) DE60109399T2 (en)
DK (1) DK1215098T3 (en)
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ES (1) ES2239111T3 (en)
FR (1) FR2818224B1 (en)
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CA2364957C (en) 2007-02-06
IL147096A0 (en) 2002-08-14
FR2818224A1 (en) 2002-06-21
HRP20010897A2 (en) 2003-08-31
ATE290971T1 (en) 2005-04-15
DE60109399D1 (en) 2005-04-21
YU88501A (en) 2003-01-31
DE60109399T2 (en) 2006-01-19
EG22817A (en) 2003-09-30
HK1048289A1 (en) 2003-03-28
EP1215098B1 (en) 2005-03-16
AU9716301A (en) 2002-06-20
DK1215098T3 (en) 2005-07-25
CN1315680C (en) 2007-05-16
AU779020B2 (en) 2005-01-06
MA25480A1 (en) 2002-07-01
FR2818224B1 (en) 2003-01-24
US6561105B2 (en) 2003-05-13
NO20016163D0 (en) 2001-12-17
HK1048289B (en) 2007-09-28
CN1368448A (en) 2002-09-11
RU2231462C2 (en) 2004-06-27
NO324083B1 (en) 2007-08-06
NO20016163L (en) 2002-06-19
HRP20010897B1 (en) 2006-02-28
ES2239111T3 (en) 2005-09-16
JP2002225704A (en) 2002-08-14
JP4044758B2 (en) 2008-02-06
US20020073887A1 (en) 2002-06-20
CA2364957A1 (en) 2002-06-18

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