EP1366965B1 - Device against the intrusion of a window into the cab of a railway vehicle upon an impact - Google Patents

Device against the intrusion of a window into the cab of a railway vehicle upon an impact Download PDF

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Publication number
EP1366965B1
EP1366965B1 EP03291209A EP03291209A EP1366965B1 EP 1366965 B1 EP1366965 B1 EP 1366965B1 EP 03291209 A EP03291209 A EP 03291209A EP 03291209 A EP03291209 A EP 03291209A EP 1366965 B1 EP1366965 B1 EP 1366965B1
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EP
European Patent Office
Prior art keywords
window
opening
intrusion
fact
members
Prior art date
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Expired - Lifetime
Application number
EP03291209A
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German (de)
French (fr)
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EP1366965A1 (en
EP1366965B8 (en
Inventor
Pierre Huss
Patrick Sicot
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Alstom Transport SA
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Alstom SA
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Publication date
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Publication of EP1366965A1 publication Critical patent/EP1366965A1/en
Publication of EP1366965B1 publication Critical patent/EP1366965B1/en
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Publication of EP1366965B8 publication Critical patent/EP1366965B8/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D49/00—Other details
    • 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 the construction of vehicles, in particular railway vehicles, and relates to a device against the intrusion of a window into a cabin during an impact and a vehicle comprising such a device. .
  • Railway vehicles usually include a driver's cab with a windshield that is attached to a skin that provides the aesthetic envelope of the vehicle, thereby providing a windshield / bodywork linkage with good aerodynamics.
  • a skin has a structure that is not designed to withstand significant shocks, the rigidity of the vehicle being provided by an independent structure, so that in case of violent impact with an obstacle that breaks the skin, the pare -brise is projected into the driver's cab endangering the life of the driver.
  • the present invention aims to overcome these disadvantages by providing a device against the intrusion of a window into a cabin of a railway vehicle during a shock that is simple and economical to achieve.
  • the invention relates to a device against the intrusion of a window in a cabin of a railway vehicle during an impact, the vehicle having a protective structure interposed between the window and the inside the cabin, the protective structure having an opening facing the window, characterized in that the protective structure supports anti-intrusion elements able to move to at least partially obstruct the opening.
  • the invention also relates to a rail vehicle comprising a cabin provided with a window, characterized in that it comprises a device against the intrusion of the window in the driver's cab complies with the characteristics described above.
  • the figure 1 represents a railway vehicle comprising a skin 6 forming the aesthetic envelope of the vehicle and a rigid chassis 4 provided at its front end with an energy-absorbing element 9.
  • the skin 6 has a front face comprising a fixed laminated windshield 2 flush on the skin 6 for example by means of a plastic shell 7.
  • the vehicle comprises a driving cabin 1 disposed behind the front face of the vehicle, this driving cabin comprising a control panel 5 placed near the base of the windshield 2 of the vehicle and a chair facing the desk to accommodate the driver.
  • the vehicle also comprises a device against the intrusion of the windshield 2 in the cabin 1, this device comprising a protective shield 3 interposed between the front face of the vehicle formed by the skin 6 of the vehicle and the inside of the cabin of conduct 1, this protective shield 3 being supported by the frame 4.
  • the protective shield 3 is formed of a metal structure supporting a rigid front wall, dimensionally stable, extending over the entire height of the driver's cab 1 and having a rectangular opening 8 arranged facing the windshield 2 of the vehicle , this opening 8 allowing the driver's vision and having a surface substantially equal to the surface of the windshield 2.
  • the protective shield 3 also comprises two side walls, one of which is provided with an opening to allow access to the driver.
  • each deformable structure 11 has a trapezoidal section having a large base resting on the periphery of the opening and a small base coming into contact with the windshield 2 on the edge thereof.
  • the deformable structures 11 each support a flap 12 on their inner blank, facing the opening 8, this flap being constituted by a metal plate whose end is welded to the deformable structure 11 near the windshield 2 and whose Another end is free and rests on the edge of the opening 8 flowing very slightly inside the latter.
  • the lower diagram of the figure 3 as well as figure 4 illustrates the state of the device against the intrusion of the windshield 2 after an impact that caused the projection of the windshield 2 towards the cabin 1, for example by breaking the plastic shell 7 ensuring the maintenance of the latter.
  • the edges of the windshield 2 bear against the rack frame 10 deforms the structures 11 causing the deformation and tilting of the flaps 12 towards the inside of the opening 8, which then partially obstruct the surface of the opening 8, thus limiting the risks of intrusion of the windshield 2 in the driver's cab 1.
  • FIGS 5 to 7 show an alternative embodiment of the device against the intrusion of a windshield according to the invention in which the bay frame described above is replaced by a frame 20 energy absorber provided with anti-intrusion means consisting of two pairs of pretensioned cylinders 22 arranged at the edge of the opening 8.
  • the rack frame 20 is constituted by a rectangular frame surrounding the opening 8 having a lower face bearing on the protective shield 3 and a deformable upper portion projecting towards the windshield 2.
  • the upper part of the frame 20 is formed of a deformable structure 21 extending on the outer periphery of the frame 20 and has an upper face coming into contact with the windshield, the latter not being represented on the Figures 5 and 6 , at the edge of the windshield.
  • the rack frame 20 comprises, near two opposite edges of the opening 8, two pretensioned cylinders 22 arranged head to tail parallel to the edge of the opening 8, each jack 22 having a foot hinged to the rack frame 20 to by means of a pivot connection 22a allowing a movement of rotation of the jack 22 in the plane of the opening 8, the jack 22 comprising a sliding rod having a head connected by a ball joint 22b to the head of the sliding rod of the jack 22 in vis-à-vis.
  • the cylinders 22 thus positioned are prestressed and have their head in abutment against a blank of the nearest deformable structure 21, the heads then being slightly offset with respect to the axis passing through the feet of the two cylinders 22.
  • the impact energy is partially absorbed by the deformation of the deformable structures 21, the deformation of these structures 21 simultaneously causing a lateral displacement of the heads jacks 22 in the direction of the opening 8 beyond the axis d, thereby generating the sudden expansion of the cylinders 22 prestressed opposite the opening 8.
  • the cylinders 22 thus relaxed prevent the intrusion of the windshield 2 in the cabin 1.
  • Such a variant of the device against intrusion has the advantage of allowing a strong extension of the cylinders towards the inside of the opening thereby reducing the passage section and ensuring high efficiency to the device.
  • the figure 8 represents an improved variant of the previously described device in which the locking cylinders 22 along the edge of the opening 8 is formed by controlled locking means, such a lug 23 controlled in translation by an electric motor.
  • This lug 23 is placed between the axis d and the opening 8 and serves as a stop to the heads 22 b of the cylinders 22.
  • the electric motor allows the erasure of the lug 23 and the relaxation of the jacks 22 opposite the opening 8 on command of the driver from control panel 5 or automatically from shock sensors.
  • Such an embodiment has the advantage of allowing release of the anti-intrusion actuators 22 at the request of the driver, for example to anticipate a shock.
  • FIG. 9 to 11 show another embodiment of the device against the intrusion of a windshield according to the invention.
  • the driver's cab 1, the chassis 4 of the vehicle, the energy-absorbing elements 9, the skin 6, the windshield 2 remain identical to those described in FIG. figure 1 .
  • the vehicle comprises a protective shield 3 similar to that described above but which supports, around the opening 8, four elastic threads 32 regularly distributed around the opening 8.
  • Each elastic thread 32 is stretched between two anchor points 34 of the shield disposed on two adjacent sides of the opening 8 and the ropes 32 are maintained, under high tension, substantially parallel to the adjacent edge of the opening 8 by a holding claw 33 disposed in the common angle to the two edges receiving dots 34.
  • the claws 33 are mounted in the shield 3 through a housing allowing displacement, under stress, the claw 33 along an axis b perpendicular to the windshield 2.
  • Each holding claw 33 has a finger retainer 33a of the elastic rope 32 and a transmission stand 33b extending along the axis b.
  • the transmission stand 33b of each claw comes into contact with the windshield 2 through an angled end while the retaining finger 33a stops in the direction of the windshield 2 to allow the release of the rope 32 during a depression of the claw 33 inside his home.
  • the four claws 33 will advantageously made integral with each other by connecting rods so that a thrust exerted on one of the claws 33 cause the depression of all the claws 33 and the simultaneous release of the four elastic strands 32.
  • the four claws 33 will have their translational movement along the axis b controlled by actuators, such as pneumatic cylinders, to allow the early release of the elastic strings in anticipation of a shock, for example at the request of the driver from the control panel 5 or automatically from sensors carried by the vehicle.
  • actuators such as pneumatic cylinders
  • the protective shield may be constituted by a wire mesh.
  • the various embodiments described above represent a device against the intrusion of a windshield into a driver's cab
  • the device according to the invention may also be used to prevent the intrusion of a side window. in a cabin.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Automation & Control Theory (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Window Of Vehicle (AREA)
  • Body Structure For Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Component Parts Of Construction Machinery (AREA)
  • Lock And Its Accessories (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

The windscreen anti shock protection mechanism has an opening (8) which faces the windscreen. The opening has windscreen anti intrusion elements (12) which move during a shock to partially obstruct the opening.

Description

L'invention se rapporte au domaine de la construction de véhicules, en particulier de véhicules ferroviaires, et a pour objet un dispositif contre l'intrusion d'une vitre dans une cabine lors d'un choc ainsi qu'un véhicule comportant un tel dispositif.The invention relates to the field of the construction of vehicles, in particular railway vehicles, and relates to a device against the intrusion of a window into a cabin during an impact and a vehicle comprising such a device. .

Les véhicules ferroviaires comportent habituellement une cabine de conduite munie d'un pare-brise qui est fixé sur une peau réalisant l'enveloppe esthétique du véhicule, permettant ainsi d'avoir une liaison pare-brise/carrosserie possédant une bonne aérodynamique. Toutefois, une telle peau possède une structure qui n'est pas prévue pour résister aux chocs importants, la rigidité du véhicule étant assurée par une structure indépendante, si bien qu'en cas de choc violent avec un obstacle venant briser la peau, le pare-brise est projeté dans la cabine de conduite mettant en danger la vie du conducteur.Railway vehicles usually include a driver's cab with a windshield that is attached to a skin that provides the aesthetic envelope of the vehicle, thereby providing a windshield / bodywork linkage with good aerodynamics. However, such a skin has a structure that is not designed to withstand significant shocks, the rigidity of the vehicle being provided by an independent structure, so that in case of violent impact with an obstacle that breaks the skin, the pare -brise is projected into the driver's cab endangering the life of the driver.

La présente invention a pour but de pallier ces inconvénients en proposant un dispositif contre l'intrusion d'une vitre dans une cabine d'un véhicule ferroviaire lors d'un choc qui soit simple et économique à réaliser.The present invention aims to overcome these disadvantages by providing a device against the intrusion of a window into a cabin of a railway vehicle during a shock that is simple and economical to achieve.

A cet effet, l'invention a pour objet un dispositif contre l'intrusion d'une vitre dans une cabine d'un véhicule ferroviaire lors d'un choc, le véhicule comportant une structure de protection s'interposant entre la vitre et l'intérieur de la cabine, la structure de protection comportant une ouverture en regard de la vitre, caractérisé en ce que la structure de protection supporte des éléments anti-intrusion aptes à se déplacer pour venir obstruer au moins partiellement l'ouverture.For this purpose, the invention relates to a device against the intrusion of a window in a cabin of a railway vehicle during an impact, the vehicle having a protective structure interposed between the window and the inside the cabin, the protective structure having an opening facing the window, characterized in that the protective structure supports anti-intrusion elements able to move to at least partially obstruct the opening.

Selon des modes particuliers de réalisation, le dispositif contre l'intrusion d'une vitre dans une cabine de véhicule ferroviaire peut comprendre l'une ou plusieurs des caractéristiques suivantes prises isolément ou selon toutes les combinaisons techniquement possibles :

  • les éléments anti-intrusions se déplacent sur commande préalablement au choc ;
  • les éléments anti-intrusions se déplacent lors du choc, le déplacement de ces derniers étant provoqué par l'enfoncement de la vitre en direction de la cabine ;
  • la structure de protection supporte des éléments absorbeur d'énergie à déformation programmée s'interposant entre la vitre et la structure de protection ;
  • la déformation des éléments absorbeurs d'énergie lors du choc provoque le déplacement des éléments anti-intrusion devant l'ouverture ;
  • les absorbeurs d'énergie comportent une face venant au contact de la vitre et les éléments anti-intrusions sont constitués par des volets qui sont rattachés aux éléments absorbeurs d'énergie dans une position n'occultant pas initialement l'ouverture, les éléments absorbeurs d'énergie possédant une forme adaptée pour que, lors de leur déformation, les volets se déplacent et s'orientent vers l'ouverture afin d'obstruer partiellement cette dernière ;
  • les éléments absorbeur d'énergies sont des structures déformables de section trapézoïdale comportant une grande base s'appuyant sur le pourtour de l'ouverture et une petite base s'étendant à proximité de la vitre en bordure de cette dernière, le volet étant rattaché à la structure déformable à proximité de la vitre et possédant une extrémité libre s'appuyant sur le bord de l'ouverture ;
  • les éléments anti-intrusion sont constitués par au moins un vérin précontraint comportant un pied relié à la structure de protection, le vérin comportant une tige coulissante munie d'une tête maintenue en bordure de l'ouverture par des moyens de blocage, les moyens de blocage réagissant lors d'un choc sur la vitre pour libérer la tête de la tige coulissante du vérin et permettre son extension en regard de l'ouverture ;
  • les éléments anti-intrusions sont des éléments élastiques tendus entre deux points de la structure de protection disposés sur deux côtés différents de l'ouverture, chaque élément élastique étant maintenu, sous tension, parallèlement au bord adjacent de l'ouverture par un ou plusieurs éléments de maintien ;
  • la surface de l'ouverture est sensiblement égale à la surface de la vitre.
According to particular embodiments, the device against the intrusion of a window into a railway vehicle cabin may include one or more of the following characteristics taken separately or in any technically possible combination:
  • the anti-intrusion elements move on command before the shock;
  • the anti-intrusion elements move during the impact, the displacement of the latter being caused by the depression of the window towards the cabin;
  • the protection structure supports energy-absorbing elements with programmed deformation interposed between the window and the protective structure;
  • the deformation of the energy-absorbing elements during the shock causes the displacement of the anti-intrusion elements in front of the opening;
  • the energy absorbers comprise a face that comes into contact with the window and the anti-intrusion elements consist of flaps which are attached to the energy-absorbing elements in a position which does not initially obscure the opening, the absorbers energy having a shape adapted so that, during their deformation, the flaps move and orient towards the opening to partially obstruct the latter;
  • the energy-absorbing elements are deformable structures of trapezoidal section comprising a large base resting on the periphery of the opening and a small base extending close to the window on the edge of the latter, the shutter being attached to the deformable structure near the window and having a free end resting on the edge of the opening;
  • the anti-intrusion elements are constituted by at least one prestressed jack having a foot connected to the protective structure, the jack comprising a sliding rod provided with a head held at the edge of the opening by locking means, the means of blocking reacting during an impact on the window to release the head of the sliding rod of the cylinder and allow its extension opposite the opening;
  • the anti-intrusion elements are elastic elements stretched between two points of the protective structure disposed on two different sides of the opening, each elastic element being maintained, under tension, parallel to the adjacent edge of the opening by one or more elements maintenance;
  • the surface of the opening is substantially equal to the surface of the window.

L'invention concerne également un véhicule ferroviaire comportant une cabine munie d'une vitre, caractérisé en ce qu'il comporte un dispositif contre l'intrusion de la vitre dans la cabine de conduite conforme aux caractéristiques précédemment décrites.The invention also relates to a rail vehicle comprising a cabin provided with a window, characterized in that it comprises a device against the intrusion of the window in the driver's cab complies with the characteristics described above.

On comprendra mieux les buts, aspects et avantages de la présente invention, d'après la description donnée ci-après de plusieurs modes de réalisation de l'invention, présentés à titre d'exemples non limitatifs, en se référant aux dessins annexés, dans lesquels :

  • la figure 1 est une vue en coupe longitudinale d'un véhicule ferroviaire équipé d'un dispositif contre l'intrusion d'un pare-brise dans une cabine de conduite selon un premier mode de réalisation de l'invention ;
  • les figures 2 et 4 sont des vues en perspective, respectivement avant et après un choc, d'une cabine de conduite munie du dispositif de la figure 1 ;
  • la figure 3 est une vue en coupe partielle illustrant le dispositif contre l'intrusion de la figure 1 avant et après le choc ;
  • la figure 5 est une vue en perspective d'une structure de cabine de conduite munie d'un dispositif contre l'intrusion d'un pare-brise selon une variante de réalisation de l'invention ;
  • la figure 6 est une vue de détail illustrant le fonctionnement du dispositif de la figure 5;
  • la figure 7 est une vue en perspective du dispositif de la figure 5 après un choc ;
  • la figure 8 est une vue similaire à la figure 6 d'une variante de réalisation du dispositif de la figure 5.
  • la figure 9 est une vue en coupe longitudinale d'un véhicule ferroviaire équipé d'un dispositif contre l'intrusion selon un autre mode de réalisation de l'invention.
  • les figures 10 et 11 sont des vues en perspective, respectivement avant et après un choc, d'une cabine de conduite muni du dispositif de la figure 9.
The aims, aspects and advantages of the present invention will be better understood from the description given below of several embodiments of the invention. presented as non-limiting examples, with reference to the accompanying drawings, in which:
  • the figure 1 is a longitudinal sectional view of a railway vehicle equipped with a device against the intrusion of a windshield in a driving cabin according to a first embodiment of the invention;
  • the figures 2 and 4 are views in perspective, respectively before and after an impact, of a driver's cabin provided with the device of the figure 1 ;
  • the figure 3 is a partial sectional view illustrating the device against the intrusion of the figure 1 before and after the shock;
  • the figure 5 is a perspective view of a cabin structure provided with a device against the intrusion of a windshield according to an alternative embodiment of the invention;
  • the figure 6 is a detailed view illustrating the operation of the device of the figure 5 ;
  • the figure 7 is a perspective view of the device of the figure 5 after a shock;
  • the figure 8 is a view similar to the figure 6 of an alternative embodiment of the device of the figure 5 .
  • the figure 9 is a longitudinal sectional view of a railway vehicle equipped with an intrusion device according to another embodiment of the invention.
  • the Figures 10 and 11 are views in perspective, respectively before and after an impact, of a driver's cabin equipped with the device of the figure 9 .

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 facilitate the reading of the drawing, only the elements necessary for the understanding of the invention have been represented. The same elements bear the same references from one figure to another.

La figure 1 représente un véhicule ferroviaire comportant une peau 6 réalisant l'enveloppe esthétique du véhicule et un châssis 4 rigide muni à son extrémité avant d'un élément absorbeur d'énergie 9. La peau 6 présente une face avant comportant un pare-brise feuilleté 2 fixé de manière affleurante sur la peau 6 par exemple au moyen d'une coque plastique 7.The figure 1 represents a railway vehicle comprising a skin 6 forming the aesthetic envelope of the vehicle and a rigid chassis 4 provided at its front end with an energy-absorbing element 9. The skin 6 has a front face comprising a fixed laminated windshield 2 flush on the skin 6 for example by means of a plastic shell 7.

Conformément à la figure 1, le véhicule comporte une cabine de conduite 1 disposée derrière la face avant du véhicule, cette cabine de conduite comportant un pupitre de commande 5 placé à proximité de la base du pare-brise 2 du véhicule et un fauteuil en regard du pupitre pour accueillir le conducteur. Le véhicule comporte également un dispositif contre l'intrusion du pare-brise 2 dans la cabine 1, ce dispositif comportant un bouclier de protection 3 interposé entre la face avant du véhicule formée par la peau 6 du véhicule et l'intérieur de la cabine de conduite 1, ce bouclier de protection 3 étant supporté par le châssis 4.In accordance with the figure 1 , the vehicle comprises a driving cabin 1 disposed behind the front face of the vehicle, this driving cabin comprising a control panel 5 placed near the base of the windshield 2 of the vehicle and a chair facing the desk to accommodate the driver. The vehicle also comprises a device against the intrusion of the windshield 2 in the cabin 1, this device comprising a protective shield 3 interposed between the front face of the vehicle formed by the skin 6 of the vehicle and the inside of the cabin of conduct 1, this protective shield 3 being supported by the frame 4.

Conformément à la figure 2, le bouclier de protection 3 est formé d'une structure métallique supportant une paroi frontale rigide, indéformable, s'étendant sur toute la hauteur de la cabine de conduite 1 et présentant une ouverture 8 rectangulaire disposée en regard du pare-brise 2 du véhicule, cette ouverture 8 permettant la vision du conducteur et possédant une surface sensiblement égale à la surface du pare-brise 2. Le bouclier de protection 3 comporte également deux parois latérales dont l'une est munie d'une ouverture pour permettre l'accès au conducteur.In accordance with the figure 2 , the protective shield 3 is formed of a metal structure supporting a rigid front wall, dimensionally stable, extending over the entire height of the driver's cab 1 and having a rectangular opening 8 arranged facing the windshield 2 of the vehicle , this opening 8 allowing the driver's vision and having a surface substantially equal to the surface of the windshield 2. The protective shield 3 also comprises two side walls, one of which is provided with an opening to allow access to the driver.

Le bouclier 3 supporte, autour de l'ouverture 8, un cadre de baie 10 absorbeur d'énergie comportant quatre structures 11 à déformation programmée disposées parallèlement aux bords de l'ouverture 8. Conformément au schéma supérieur de la figure 3, illustrant le dispositif avant le choc, chaque structure 11 déformable présente une section trapézoïdale comportant une grande base s'appuyant sur le pourtour de l'ouverture et une petite base venant au contact du pare-brise 2 en bordure de ce dernier. Les structures 11 déformables supportent chacune un volet 12 sur leur flan intérieur, orienté vers l'ouverture 8, ce volet étant constitué par une plaque métallique dont une extrémité est soudée à la structure 11 déformable à proximité du pare-brise 2 et dont l'autre extrémité est libre et repose sur le bord de l'ouverture 8 en débordant très légèrement à l'intérieur de cette dernière.The shield 3 supports, around the opening 8, a frame 10 energy absorber comprising four structures 11 with programmed deformation arranged parallel to the edges of the opening 8. In accordance with the upper diagram of the figure 3 , illustrating the device before the shock, each deformable structure 11 has a trapezoidal section having a large base resting on the periphery of the opening and a small base coming into contact with the windshield 2 on the edge thereof. The deformable structures 11 each support a flap 12 on their inner blank, facing the opening 8, this flap being constituted by a metal plate whose end is welded to the deformable structure 11 near the windshield 2 and whose Another end is free and rests on the edge of the opening 8 flowing very slightly inside the latter.

Le schéma inférieur de la figure 3 ainsi que la figure 4 illustre l'état du dispositif contre l'intrusion du pare-brise 2 après un choc ayant provoqué la projection du pare-brise 2 en direction de la cabine 1, par exemple par rupture de la coque plastique 7 assurant le maintien de ce dernier. Conformément à ces figures, lors de la projection du pare-brise 2 en direction de la cabine 1, les bords du pare-brise 2 en appui contre le cadre de baie 10 viennent déformer les structures 11 provoquant la déformation et le basculement des volets 12 vers l'intérieur de l'ouverture 8, ce qui obstrue alors partiellement la surface de l'ouverture 8, limitant ainsi les risques d'intrusion du pare-brise 2 dans la cabine de conduite 1.The lower diagram of the figure 3 as well as figure 4 illustrates the state of the device against the intrusion of the windshield 2 after an impact that caused the projection of the windshield 2 towards the cabin 1, for example by breaking the plastic shell 7 ensuring the maintenance of the latter. According to these figures, during the projection of the windshield 2 towards the cabin 1, the edges of the windshield 2 bear against the rack frame 10 deforms the structures 11 causing the deformation and tilting of the flaps 12 towards the inside of the opening 8, which then partially obstruct the surface of the opening 8, thus limiting the risks of intrusion of the windshield 2 in the driver's cab 1.

Il résulte de ce qui précède que les risques d'intrusions du pare-brise ou d'autres objets dans la cabine sont minimisés d'une part par l'absorption d'une partie de l'énergie d'intrusion du pare-brise lors de la déformation du cadre de baie et d'autre part par l'obstruction de l'ouverture par les volets.It follows from the foregoing that the risks of intrusion of the windshield or other objects into the cabin are minimized on the one hand by the absorption of a part of the energy of intrusion of the windshield during deformation of the bay frame and secondly by the obstruction of the opening by the shutters.

Les figures 5 à 7 présentent une variante de réalisation du dispositif contre l'intrusion d'un pare-brise selon l'invention dans laquelle le cadre de baie précédemment décrit est remplacé par un cadre de baie 20 absorbeur d'énergie muni de moyens anti-intrusions constitués par deux paires de vérins 22 précontraints disposés en bordure de l'ouverture 8.The Figures 5 to 7 show an alternative embodiment of the device against the intrusion of a windshield according to the invention in which the bay frame described above is replaced by a frame 20 energy absorber provided with anti-intrusion means consisting of two pairs of pretensioned cylinders 22 arranged at the edge of the opening 8.

Conformément à la figure 5 et au schéma de gauche de la figure 6, le cadre de baie 20 est constitué par un cadre rectangulaire entourant l'ouverture 8 comportant une face inférieure prenant appui sur le bouclier de protection 3 et une partie supérieure déformable faisant saillie vers le pare-brise 2. La partie supérieure du cadre 20 est formée d'une structure déformable 21 s'étendant sur le pourtour extérieur du cadre 20 et présente une face supérieure venant au contact du pare-brise, ce dernier n'étant pas représenté sur les figures 5 et 6, en bordure du pare-brise. Le cadre de baie 20 comporte, à proximité de deux bords opposés de l'ouverture 8, deux vérins 22 précontraints disposés tête-bêche parallèlement au bord de l'ouverture 8, chaque vérin 22 comportant un pied articulé sur le cadre de baie 20 au moyen d'une liaison pivot 22a autorisant un mouvement de rotation du vérin 22 dans le plan de l'ouverture 8, le vérin 22 comportant une tige coulissante présentant une tête reliée par une liaison rotule 22b à la tête de la tige coulissante du vérin 22 en vis-à-vis. Les vérins 22 ainsi positionnés sont précontraints et ont leur tête en butée contre un flan de la structure déformable 21 la plus proche, les têtes étant alors légèrement décalées par rapport à l'axe d passant par les pieds des deux vérins 22.In accordance with the figure 5 and to the left schema of the figure 6 , the rack frame 20 is constituted by a rectangular frame surrounding the opening 8 having a lower face bearing on the protective shield 3 and a deformable upper portion projecting towards the windshield 2. The upper part of the frame 20 is formed of a deformable structure 21 extending on the outer periphery of the frame 20 and has an upper face coming into contact with the windshield, the latter not being represented on the Figures 5 and 6 , at the edge of the windshield. The rack frame 20 comprises, near two opposite edges of the opening 8, two pretensioned cylinders 22 arranged head to tail parallel to the edge of the opening 8, each jack 22 having a foot hinged to the rack frame 20 to by means of a pivot connection 22a allowing a movement of rotation of the jack 22 in the plane of the opening 8, the jack 22 comprising a sliding rod having a head connected by a ball joint 22b to the head of the sliding rod of the jack 22 in vis-à-vis. The cylinders 22 thus positioned are prestressed and have their head in abutment against a blank of the nearest deformable structure 21, the heads then being slightly offset with respect to the axis passing through the feet of the two cylinders 22.

Conformément au schéma de droite de la figure 6 et à la figure 7, lors d'un choc provoquant le déplacement du pare-brise 2 en direction de la cabine 1, l'énergie du choc est partiellement absorbée par la déformation des structures déformables 21, la déformation de ces structures 21 provoquant simultanément un déplacement latéral des têtes des vérins 22 en direction de l'ouverture 8 au-delà de l'axe d, engendrant ainsi la détente soudaine des vérins 22 précontraints en regard de l'ouverture 8. Les vérins 22 ainsi détendus empêchent alors l'intrusion du pare-brise 2 dans la cabine 1.In accordance with the diagram on the right of the figure 6 and at the figure 7 during an impact causing the windshield 2 to move towards the cabin 1, the impact energy is partially absorbed by the deformation of the deformable structures 21, the deformation of these structures 21 simultaneously causing a lateral displacement of the heads jacks 22 in the direction of the opening 8 beyond the axis d, thereby generating the sudden expansion of the cylinders 22 prestressed opposite the opening 8. The cylinders 22 thus relaxed prevent the intrusion of the windshield 2 in the cabin 1.

Une telle variante du dispositif contre l'intrusion présente l'avantage de permettre une forte extension des vérins vers l'intérieur de l'ouverture réduisant d'autant la section de passage et assurant une grande efficacité au dispositif.Such a variant of the device against intrusion has the advantage of allowing a strong extension of the cylinders towards the inside of the opening thereby reducing the passage section and ensuring high efficiency to the device.

La figure 8 représente une variante perfectionnée du dispositif précédemment décrit dans laquelle le blocage des vérins 22 le long du bord de l'ouverture 8 est réalisé par des moyens de blocage commandés, tel un ergot 23 commandé en translation par un moteur électrique. Cet ergot 23 est placé entre l'axe d et l'ouverture 8 et sert de butée aux têtes 22 b des vérins 22. Le moteur électrique permet l'effacement de l'ergot 23 et la détente des vérins 22 en regard de l'ouverture 8 sur commande du conducteur à partir pupitre de commande 5 ou automatiquement à partir de capteurs de chocs. Une telle variante de réalisation présente l'avantage de permettre une libération des vérins anti-intrusion 22 à la demande du conducteur, par exemple pour anticiper un choc.The figure 8 represents an improved variant of the previously described device in which the locking cylinders 22 along the edge of the opening 8 is formed by controlled locking means, such a lug 23 controlled in translation by an electric motor. This lug 23 is placed between the axis d and the opening 8 and serves as a stop to the heads 22 b of the cylinders 22. The electric motor allows the erasure of the lug 23 and the relaxation of the jacks 22 opposite the opening 8 on command of the driver from control panel 5 or automatically from shock sensors. Such an embodiment has the advantage of allowing release of the anti-intrusion actuators 22 at the request of the driver, for example to anticipate a shock.

Les figures 9 à 11 présentent un autre mode de réalisation du dispositif contre l'intrusion d'un pare-brise selon l'invention. Dans ce mode de réalisation, la cabine de conduite 1, le châssis 4 du véhicule, les éléments absorbeurs d'énergie 9, la peau 6, le pare-brise 2 restent identiques à ceux décrits sur la figure 1.The Figures 9 to 11 show another embodiment of the device against the intrusion of a windshield according to the invention. In this embodiment, the driver's cab 1, the chassis 4 of the vehicle, the energy-absorbing elements 9, the skin 6, the windshield 2 remain identical to those described in FIG. figure 1 .

Conformément à la figure 10, le véhicule comporte un bouclier de protection 3 similaire à celui décrit précédemment mais qui supporte, autour de l'ouverture 8, quatre filins élastiques 32 régulièrement répartis autour de l'ouverture 8. Chaque filin élastique 32 est tendu entre deux points d'ancrage 34 du bouclier disposés sur deux côtés attenants de l'ouverture 8 et les filins 32 sont maintenus, sous forte tension, sensiblement parallèlement au bord adjacent de l'ouverture 8 par une griffe de maintien 33 disposée dans l'angle commun aux deux bords recevant les points d'ancrage 34. Les griffes 33 sont montées dans le bouclier 3 au travers d'un logement autorisant un déplacement, sous effort, de la griffe 33 suivant un axe b perpendiculaire au pare-brise 2. Chaque griffe de maintien 33 comporte un doigt de retenu 33a du filin élastique 32 ainsi qu'une béquille de transmission 33b s'étendant suivant l'axe b. La béquille de transmission 33b de chaque griffe, représentée partiellement arrachée pour deux des griffes sur la figure 10, vient au contact du pare-brise 2 par l'intermédiaire d'une extrémité coudée alors que le doigt de retenu 33a s'interrompt en direction du pare-brise 2 afin de permettre la libération du filin 32 lors d'un enfoncement de la griffe 33 à l'intérieur de son logement.In accordance with the figure 10 , the vehicle comprises a protective shield 3 similar to that described above but which supports, around the opening 8, four elastic threads 32 regularly distributed around the opening 8. Each elastic thread 32 is stretched between two anchor points 34 of the shield disposed on two adjacent sides of the opening 8 and the ropes 32 are maintained, under high tension, substantially parallel to the adjacent edge of the opening 8 by a holding claw 33 disposed in the common angle to the two edges receiving dots 34. The claws 33 are mounted in the shield 3 through a housing allowing displacement, under stress, the claw 33 along an axis b perpendicular to the windshield 2. Each holding claw 33 has a finger retainer 33a of the elastic rope 32 and a transmission stand 33b extending along the axis b. The transmission stand 33b of each claw, shown partially broken away for two of the claws on the figure 10 , comes into contact with the windshield 2 through an angled end while the retaining finger 33a stops in the direction of the windshield 2 to allow the release of the rope 32 during a depression of the claw 33 inside his home.

Ainsi, comme cela est représenté à la figure 11, lors d'un choc engendrant le déplacement du pare-brise en direction de l'ouverture 8, les griffes 33 sont enfoncées dans leur logement du fait de l'appui du pare-brise 2 sur les béquilles 33b, ce qui provoque l'effacement des doigts de retenu 33a à l'intérieur du logement et la libération soudaine des filins élastiques 32 qui se détendent partiellement en se plaçant en travers de l'ouverture 8 limitant ainsi les risques d'intrusion du pare-brise 2 dans la cabine 3.Thus, as shown in figure 11 during a shock causing the windshield to move towards the opening 8, the claws 33 are driven into their housing by the support of the windshield 2 on the stands 33b, which causes the erasing the retaining fingers 33a inside the housing and the sudden release of the elastic strings 32 which partially relax by placing themselves across the opening 8 thus limiting the risks of intrusion of the windshield 2 into the cabin 3 .

Dans une variante perfectionnée du mode de réalisation précédemment décrit, les quatre griffes 33 seront avantageusement rendues solidaires les unes des autres par des tiges de liaison afin qu'une poussée exercée sur une seule des griffes 33 entraînent l'enfoncement de l'ensemble des griffes 33 et la libération simultanée des quatre filins élastiques 32.In an improved variant of the embodiment described above, the four claws 33 will advantageously made integral with each other by connecting rods so that a thrust exerted on one of the claws 33 cause the depression of all the claws 33 and the simultaneous release of the four elastic strands 32.

Dans une autre variante perfectionnée du mode de réalisation précédemment décrit, les quatre griffes 33 auront leur mouvement de translation suivant l'axe b commandé par des actionneurs, tels des vérins pneumatiques, afin de permettre la libération anticipée des filins élastiques en prévision d'un choc, par exemple sur demande du conducteur à partir du pupitre de commande 5 ou automatiquement à partir de capteurs portés par le véhicule.In another improved variant of the embodiment described above, the four claws 33 will have their translational movement along the axis b controlled by actuators, such as pneumatic cylinders, to allow the early release of the elastic strings in anticipation of a shock, for example at the request of the driver from the control panel 5 or automatically from sensors carried by the vehicle.

Bien entendu, l'invention n'est nullement limitée aux modes de réalisation décrits et illustrés qui n'ont été donnés qu'à titre d'exemples. 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 not limited to the described and illustrated embodiments which have been given only as examples. Modifications are possible, particularly from the point of view of the constitution of the various elements or by substitution of technical equivalents, without departing from the scope of the invention.

Ainsi, dans une variante de réalisation le bouclier de protection pourra être constitué par un treillis métallique.Thus, in an alternative embodiment the protective shield may be constituted by a wire mesh.

Ainsi, bien que les différents modes de réalisation précédemment décrits représentent un dispositif contre l'intrusion d'un pare-brise dans une cabine de conduite, le dispositif selon l'invention pourra également être utilisé pour empêcher l'intrusion d'une vitre latérale dans une cabine.Thus, although the various embodiments described above represent a device against the intrusion of a windshield into a driver's cab, the device according to the invention may also be used to prevent the intrusion of a side window. in a cabin.

Claims (11)

  1. Device preventing a window (2) from intruding into a cab (1) of a railway vehicle in the event of an impact, the said vehicle comprising a protective structure (3) placed between the window (2) and the interior of the cab (1), where the said protective structure (3) includes an opening (8) facing the window (2), characterised by the fact that the protective structure supports anti-intrusion members (12, 22, 32) designed to move so as to at least partially obstruct the said opening (8).
  2. Device preventing a window (2) from intruding according to claim 1, characterised by the fact that the anti-intrusion members (22, 32) move on command before the impact.
  3. Device preventing a window (2) from intruding according to claim 1, characterised by the fact that the anti-intrusion members (12, 22, 32) move during the impact, with the movement of the said anti-intrusion members (12, 22, 32) being caused by the window (2) moving inwards in the direction of the cab (1).
  4. Device preventing a window (2) from intruding according to any of claims 1 to 3 whatsoever, characterised by the fact that the protective structure (3) supports programmed-deformation energy-absorbing members (11, 21) between the window (2) and the protective structure (3).
  5. Device preventing a window (2) from intruding according to claim 4, characterised by the fact that deformation of the energy-absorbing members (11,21) in the event of an impact causes the anti-intrusion members (12,22) to move in front of the said opening (8).
  6. Device preventing a window (2) from intruding according to claim 5, characterised by the fact that the energy absorbing members (11) have a face which makes contact with the window (2) and by the fact that the anti-intrusion members are made up of flaps (12) which are attached to the energy absorbing members (11) in a position which does not initially obstruct the opening (8), where the said energy-absorbing members (11) have a shape designed so that when they are deformed, the flaps (12) move and are oriented towards the opening (8) in order to partially obstruct the latter.
  7. Device preventing a window (2) from intruding according to claim 6, characterised by the fact that the energy absorbing members (11) are deformable structures of trapezoidal section having a long base resting on the perimeter of the opening (8) and a short base extending close to the window (2) at the edge of the latter, with the flap (12) being attached to the deformable structure (11) close to the window (2) and having a free extremity resting on the edge of the opening (8).
  8. Device preventing a window (2) from intruding according to any of claims 1 to 5 whatsoever, characterised by the fact that the anti-intrusion members are made up of at least one pre-stressed cylinder (22) having a base connected to the protective structure (3), where the said cylinder (22) comprises a sliding rod fitted with a head maintained at the edge of the opening (8) by locking means, where the said means of locking react in the event of an impact on the window (2) to release the head of the sliding rod of the said cylinder (22) and enable it to extend in front of the opening (8).
  9. Device preventing window (2) from intruding according to any of claims 1 to 5 whatsoever, characterised by the fact that the anti-intrusion members are elastic members (32) stretched between two points (34) of the protective structure (3) arranged on two different sides of the opening (3), where each elastic member (32) is maintained under tension parallel to the adjacent edge of opening (8) by one or more retaining members (33).
  10. Device preventing a window (2) from intruding according to any of claims 1 to 9 whatsoever, characterised by the fact that the surface area of the opening (8) is effectively equal to the surface area of the window (2).
  11. Railway vehicle comprising a cab (1) equipped with a window (2), characterised by the fact that it contains a device preventing intrusion of the window (2) into the cab (1) according to any of claims 1 to 10 whatsoever.
EP03291209A 2002-05-31 2003-05-22 Device against the intrusion of a window into the cab of a railway vehicle upon an impact Expired - Lifetime EP1366965B8 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0206708 2002-05-31
FR0206708A FR2840274B1 (en) 2002-05-31 2002-05-31 DEVICE AGAINST THE INTRUSION OF A GLASS INTO A RAIL VEHICLE CABIN DURING AN IMPACT

Publications (3)

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EP1366965A1 EP1366965A1 (en) 2003-12-03
EP1366965B1 true EP1366965B1 (en) 2008-05-21
EP1366965B8 EP1366965B8 (en) 2008-09-10

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EP03291209A Expired - Lifetime EP1366965B8 (en) 2002-05-31 2003-05-22 Device against the intrusion of a window into the cab of a railway vehicle upon an impact

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US (1) US6941874B2 (en)
EP (1) EP1366965B8 (en)
JP (1) JP4334909B2 (en)
KR (1) KR100941735B1 (en)
CN (1) CN100377925C (en)
AT (1) ATE396097T1 (en)
AU (1) AU2003204464B2 (en)
BR (1) BR0302036B1 (en)
CA (1) CA2429858C (en)
DE (1) DE60321086D1 (en)
DK (1) DK1366965T3 (en)
ES (1) ES2307883T3 (en)
FR (1) FR2840274B1 (en)
MX (1) MXPA03004746A (en)
PT (1) PT1366965E (en)
RU (1) RU2308388C2 (en)
TW (1) TWI281896B (en)

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TWI281896B (en) 2007-06-01
KR100941735B1 (en) 2010-02-11
FR2840274B1 (en) 2004-07-23
US20030221584A1 (en) 2003-12-04
MXPA03004746A (en) 2005-02-14
AU2003204464B2 (en) 2009-05-14
DE60321086D1 (en) 2008-07-03
PT1366965E (en) 2008-10-28
TW200402374A (en) 2004-02-16
DK1366965T3 (en) 2008-09-15
ES2307883T3 (en) 2008-12-01
KR20030093970A (en) 2003-12-11
EP1366965A1 (en) 2003-12-03
CN1461714A (en) 2003-12-17
US6941874B2 (en) 2005-09-13
BR0302036B1 (en) 2012-06-12
ATE396097T1 (en) 2008-06-15
BR0302036A (en) 2004-09-08
AU2003204464A1 (en) 2003-12-18
CA2429858A1 (en) 2003-11-30
FR2840274A1 (en) 2003-12-05
CN100377925C (en) 2008-04-02
RU2308388C2 (en) 2007-10-20
JP2004034971A (en) 2004-02-05
CA2429858C (en) 2011-01-11
EP1366965B8 (en) 2008-09-10
JP4334909B2 (en) 2009-09-30

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