EP0731219A1 - Apparatus for unfolding a bridge consisting of two superimposed bridge elements - Google Patents

Apparatus for unfolding a bridge consisting of two superimposed bridge elements Download PDF

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Publication number
EP0731219A1
EP0731219A1 EP96400373A EP96400373A EP0731219A1 EP 0731219 A1 EP0731219 A1 EP 0731219A1 EP 96400373 A EP96400373 A EP 96400373A EP 96400373 A EP96400373 A EP 96400373A EP 0731219 A1 EP0731219 A1 EP 0731219A1
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EP
European Patent Office
Prior art keywords
bridge
axis
punch
brackets
articulated
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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
EP96400373A
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German (de)
French (fr)
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EP0731219B1 (en
Inventor
Renaud Mouterde
Jacky Jacquemont
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Giat Industries SA
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Giat Industries SA
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Publication of EP0731219A1 publication Critical patent/EP0731219A1/en
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Publication of EP0731219B1 publication Critical patent/EP0731219B1/en
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    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00—Movable or portable bridges; Floating bridges
    • E01D15/12—Portable or sectional bridges
    • E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof

Definitions

  • the present invention relates to a device for deploying a bridge, in particular a bridge with two superimposed spans connected together.
  • Such bridges are marketed under the reference n ° 10 for a scissor type bridge and n ° 12 for a bridge with two simple overlapping spans, by the company THOMPSON DEFENSE PROJECTS LIMITED. It is associated with a deployment device manufactured by the VICKERS Company.
  • This deployment device comprises a tilting means pivoting about an axis integral with the vehicle, a support pad on the ground, pivoting about an axis integral with the tilting element, and a punch engaging in one of the elements of the bridge and articulated around an axis integral with the support shoe.
  • the tilting means is formed by a wire mesh actuated by two pivoting cylinders converging towards the center of the skate, the assembly requiring the presence of six fixing points on the body of the bridge-carrying tank.
  • the subject of the present invention is a device for deploying a bridge, in particular of the scissor type, which has a significantly simplified structure compared to known devices and which makes it possible, on the one hand, to reduce the number from 6 to 4. fixing points on the chassis of the tank and, on the other hand, to limit the number of mechanical and hydraulic components which considerably disturb the access and the vision of the cockpit of the tank.
  • the invention relates to a device for deploying a bridge comprising two superimposed spans which can be moved between a transport position in which the two spans are folded and superimposed and are carried by a vehicle such as a tank, and a position deployment in which the two spans are arranged substantially in the extension of one another to form a deployed bridge, said device comprising a means of tilting pivoting around at least a first axis integral with said vehicle under the action of at least one tilting cylinder, the tilting element supporting the bridge during at least a preliminary phase of its deployment, a support pad at ground, pivoting around a second axis integral with the tilting element under the action of at least one pivoting cylinder, the upstream end of said upstream part being articulated around a third axis carried by the shoe d 'support, and a pivot pivot punch actuated by at least one punch cylinder and articulated at an upstream end around a fourth axis integral with the support shoe and having a downstream end housed in said upstream part of the
  • the third and fourth axes are preferably aligned.
  • the brackets each advantageously comprise an upper arm at the rear end of which the second end of the corresponding tilting cylinder is articulated, and at the front end of which the second axis is disposed, as well as an extension extending from the arm higher up to said articulation region.
  • the extensions of the brackets advantageously have a ribbed or perforated central region.
  • the device can comprise at least one element, for example cylindrical, of mechanical reinforcement mechanically connecting the two brackets.
  • a said reinforcing element can be arranged so as to connect the rear ends of the brackets.
  • the device may comprise a plate pivoting about an axis secured to the punch, on either side of which are mounted two cables for opening the bridge. In the folded position of the pivoting jack, the plate can then be taken between a stop carried by a said mechanical reinforcing element, preferably that which connects the rear ends of the brackets, and a stop of the punch.
  • the punch cylinder is housed between the two brackets and has a first end articulated to the support shoe around a fifth axis located in a central region of the support shoe and a second end articulated around a sixth axis carried by the punch and located in the vicinity of the downstream end of the punch.
  • the device according to the invention advantageously has two pivoting cylinders articulated on the support pad at the end of stirrups arranged between the brackets and on either side of the punch, said stirrups extending perpendicular to the face of support of the support shoe.
  • the device according to the invention advantageously comprises a tensioning device for deploying the bridge cables, actuated by two opening cylinders articulated, at their upstream end, at the central part of an arm upper of the brackets.
  • the bridge deployment device described below is more particularly designed to allow the aforementioned n ° 10 chisel-type bridge and the aforementioned n ° 12 bridge to be placed and taken up on the ground, which comprises two superimposed spans, these bridges being sold THOMPSON DEFENSE PROJECTS LIMITED.
  • the deployment device as described makes it possible not to disturb access and vision to the cockpit and makes it possible to launch the deck from the front; it preferably has an opening adjustment of the scissor bridge as a function of the breach to be crossed.
  • the deployment device is positioned at the front 10 of the tank 1. It is fixed at four points, namely at two points 16 at the front of the vehicle and two points 17 on the turret 12 (see in particular Figure 2) .
  • the two attachment points 16 allow the articulation of the brackets 30 around the axis 11 while the two attachment points 17 allow the articulation of the upstream end of the tilting cylinder 21 around the axes 14.
  • the concept of double angle allows compared to the deployment devices of the Prior Art, for example the aforementioned device manufactured by the VICKERS Company, to limit the number of mechanical and hydraulic components which disturb access and vision of the cockpit .
  • the fixing points 16 of the double brackets 30 on the axis 11 are located in the immediate vicinity of the internal part of the tracks of the tank 1 and the upper arm 31 of the brackets 30 is, in the transport position, practically horizontal, the shoe 40 being practically vertical and in a position sufficiently raised to clear the view to the front from the turret.
  • the mounting of the deployment device only causes minor modifications to the chassis of the tank.
  • the fixing at 16 is ensured by two ears welded to the front plate 10 of the body, and the tilting jacks 21 are simply mounted on the turret 12.
  • the opening of the deck can thus be controlled from the cockpit.
  • the two opening jacks 24, integral with the deployment device, also ensure the adjustment of the scissor bridge as a function of the breach to be crossed.
  • the deployment kinematics takes place in three phases, the last of which is a combined phase.
  • the tilting cylinders 21 are used, which has the effect of rotating the assembly by one block until the shoe 40 touches the ground by its edge. rounded attack 48.
  • the second phase consists in the implementation of the pivoting cylinders 22. This is shown in FIG. 3 b .
  • the action of the pivoting cylinders 22 has the effect of rotating the support pad 40 until its underside 43 presses completely on the ground.
  • the third phase implements the deployment of the punch 23 and opening 24 jacks, causing complete deployment of the bridge as shown in FIGS. 3 c and 3 b .
  • the deployment device will be described below in a more complete manner, by relating its operation to the aforementioned phases 1 to 3.
  • the tilting cylinders 21 are articulated at 14 on the point of attachment 17 located at the front part to the turret 12 and at 18 at the end 38 of the upper arm 31 of the respective bracket 30.
  • the bracket 30 has a extension directed downwards comprising two auxiliary arms 32 and 33 joining at 29 to form a V, the brackets being perforated (openings 34 and 35).
  • cylindrical tie rods 36, 37 and 70 connect the brackets respectively, on the one hand, to the lower end 29 to which the brackets are fixed at 16 in front of the chassis of the tank 1, the tie rod 36 being thereby aligned with the axis 11, on the other hand, in a middle part of the upper arm 31 between the openings 34 and 35, 1 where the articulation of the cylinders d takes place opening 24 on the brackets 30 by means of two stirrups 27 arranged at the ends of the tie rod 37, and finally, at the rear part 38 of the upper arm 31, in the vicinity of the pivot axis 18 of the tilting cylinders 21.
  • the leading edge 48 of rounded shape has in an intermediate region an opening 41 of substantially rectangular shape which has two legs 47 arranged so as to allow the articulation of the downstream ends 39 of the upper arms 31 of the brackets 30, which performs the articulation between the latter and the support pad 40 around the axis 49 (see in particular Figures 4 a and 4 b ).
  • the pivoting cylinders 22 are articulated on the pad 40 at the end of stirrups 26 located on either side of the punch 60 and between the brackets 30, in the vicinity of these.
  • the stirrups 26 extend perpendicularly to the bearing face 43 of the shoe 40, so that they are in the vertical position when the shoe 40 is placed on the ground by its bearing face 43.
  • Phase 3 or combined phase implements the action of the punch 23 and opening 24 jacks, the operation of which is specified by the description below.
  • the punch 60 is an elongate piece movable in rotation about an axis 65 relative to the shoe 40. It is fixed by two legs 61 which frame a projecting region 45 on either side of which ears 46 are arranged. The punch 60 is fixed to the shoe 40 between the hooks 44 for hooking the upstream part 5 of the bridge which form a pivot axis of the bridge, and therefore in a middle part of the shoe 40.
  • the punch 60 is an elongated part in the general shape of a U and whose downstream end 63, which has a cone 67 for positioning the span 5 (see FIG. 4 b ), is housed in a region provided for this purpose of the upstream part 5 of the bridge.
  • the punch cylinder 23, for its part, is articulated between on the one hand an axis 52 located at the end of a central stirrup 28 located between the stirrups 26, extending like them perpendicular to the bearing face 43 pads 40, and similar in shape to these, and on the other hand an axis 64 located near the end 63 of the punch 60.
  • the punch cylinder is returned, the punch 60 comes into position stop on the central stirrup 28 belonging to the shoe 40.
  • the pivoting cylinders are retracted, the U-shaped plate 50 is taken between the stops 72 belonging to the punch 60 and the stops 71 belonging to the tie rod 70.
  • the function of the punch 60 is to rotate the entire bridge which, in the case of a scissor bridge, is retained by the cables 15.
  • the length of the cables 15 can be modified thanks to the opening jacks 24, which allows an adjustment of a scissor bridge according to the breach to cross.
  • the cables 15 are stretched between, on the one hand, the end of an arm 55 secured to a frame 56 carried by the downstream element 6 of the bridge and situated in the vicinity of the axis of rotation 57 of the two elements 5 and 6 relative to each other and above them in the position shown in Figure 3b , and on the other hand one end of the U-shaped part 50.
  • the pivoting of the bridge under the action of the jack punch 23 thus causes its opening, the degree of opening depending, in the case of a scissor bridge, on the length of the cables 15.
  • the opening jacks 24 are articulated, each at one end, to the stirrup 27 and , at their other end, at 54, to the central branch of the U-shaped part 50, which has two arms 51 which are themselves articulated with the punch 60 around an axis 66 by means of two stirrups 62 arranged below the punch 60 and spaced laterally from each other.
  • the stirrups 62 are located at a certain distance from the front end 63 so that, the device being in the folded position (FIGS. 1 a , 1 b , 4 a , 4 b ), the U-shaped part 50 is mainly located below the punch 60.
  • the position of the rod of the opening cylinders 24 allows adjustment of the cables 15, and therefore of the degree of opening of the scissor bridge.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

The deployment of a bridge with two superposed overspans utilises a tipping system (30) which pivots about an axle (11) fixed to the vehicle. There is a pivoting ground support runner (40). The front end of the bridge is pivoted about an axle (44) carried by the support runner and a pivoting point (60) of the bridge activated by a point actuator (23). The device of tipping comprises two angle irons (30) which are spaced laterally from each other and which are each pivoted in a pivoting region (16) on the axle. Two tipping actuators (21) are pivoted by their first ends on an upper part (12) of the vehicle. The second ends are pivoted in an upper rear part (38) of the angle iron.

Description

La présente invention a pour objet un dispositif de déploiement d'un pont en particulier d'un pont à deux travures superposées reliées entre elles.The present invention relates to a device for deploying a bridge, in particular a bridge with two superimposed spans connected together.

De tels ponts sont commercialisés sous la référence n° 10 pour un pont de type ciseau et n° 12 pour un pont à deux travures simples superposées, par la Société THOMPSON DEFENCE PROJECTS LIMITED. Il est associé à un dispositif de déploiement fabriqué par la Société VICKERS. Ce dispositif de déploiement comporte un moyen de basculement pivotant autour d'un axe solidaire du véhicule, un patin d'appui au sol, pivotant autour d'un axe solidaire de l'élément de basculement, et un poinçon s'engageant dans un des éléments du pont et articulé autour d'un axe solidaire du patin d'appui. Le moyen de basculement est formé par un treillis métallique actionné par deux vérins de pivotement convergeant vers le centre du patin, l'ensemble nécessitant la présence de six points de fixation sur la caisse du char porte-pont.Such bridges are marketed under the reference n ° 10 for a scissor type bridge and n ° 12 for a bridge with two simple overlapping spans, by the company THOMPSON DEFENSE PROJECTS LIMITED. It is associated with a deployment device manufactured by the VICKERS Company. This deployment device comprises a tilting means pivoting about an axis integral with the vehicle, a support pad on the ground, pivoting about an axis integral with the tilting element, and a punch engaging in one of the elements of the bridge and articulated around an axis integral with the support shoe. The tilting means is formed by a wire mesh actuated by two pivoting cylinders converging towards the center of the skate, the assembly requiring the presence of six fixing points on the body of the bridge-carrying tank.

La présente invention a pour objet un dispositif de déploiement d'un pont, en particulier du type ciseau, qui présente une structure notablement simplifiée par rapport aux dispositifs connus et qui permet, d'une part, de faire passer de 6 à 4 le nombre des points de fixation sur le châssis du char et, d'autre part, de limiter le nombre de composants mécaniques et hydrauliques qui perturbent considérablement l'accès et la vision du poste de pilotage du char.The subject of the present invention is a device for deploying a bridge, in particular of the scissor type, which has a significantly simplified structure compared to known devices and which makes it possible, on the one hand, to reduce the number from 6 to 4. fixing points on the chassis of the tank and, on the other hand, to limit the number of mechanical and hydraulic components which considerably disturb the access and the vision of the cockpit of the tank.

L'invention concerne dans ce but un dispositif de déploiement d'un pont comportant deux travures superposées et déplaçables entre une position de transport dans laquelle les deux travures sont repliées et superposées et sont portées par un véhicule tel qu'un char, et une position de déploiement dans laquelle les deux travures sont disposées sensiblement dans le prolongement l'une de l'autre pour former un pont déployé, ledit dispositif comportant un moyen de basculement pivotant autour d'au moins un premier axe solidaire dudit véhicule sous l'action d'au moins un vérin de basculement, l'élément de basculement supportant le pont pendant au moins une phase préliminaire de son déploiement, un patin d'appui au sol, pivotant autour d'un deuxième axe solidaire de l'élément de basculement sous l'action d'au moins un vérin de pivotement, l'extrémité amont de ladite partie amont étant articulée autour d'un troisième axe porté par le patin d'appui, et un poinçon de pivotement du pont actionné par au moins un vérin de poinçon et articulé à une extrémité amont autour d'un quatrième axe solidaire du patin d'appui et présentant une extrémité aval logée dans ladite partie amont du pont, caractérisé en ce que le moyen de basculement comporte deux équerres qui sont espacées latéralement l'une de l'autre et qui sont articulées chacune en une région d'articulation située sur ledit premier axe, et en ce qu'il comporte deux vérins de basculement disposés parallèlement l'un à l'autre et articulés à leur première extrémité sur une partie supérieure du véhicule et à leur deuxième extrémité sur une région située dans une partie supérieure de chacune des équerres et à l'arrière de celles-ci.To this end, the invention relates to a device for deploying a bridge comprising two superimposed spans which can be moved between a transport position in which the two spans are folded and superimposed and are carried by a vehicle such as a tank, and a position deployment in which the two spans are arranged substantially in the extension of one another to form a deployed bridge, said device comprising a means of tilting pivoting around at least a first axis integral with said vehicle under the action of at least one tilting cylinder, the tilting element supporting the bridge during at least a preliminary phase of its deployment, a support pad at ground, pivoting around a second axis integral with the tilting element under the action of at least one pivoting cylinder, the upstream end of said upstream part being articulated around a third axis carried by the shoe d 'support, and a pivot pivot punch actuated by at least one punch cylinder and articulated at an upstream end around a fourth axis integral with the support shoe and having a downstream end housed in said upstream part of the bridge, characterized in that the tilting means comprises two brackets which are spaced laterally from one another and which are each articulated in an articulation region situated on said first axis, and in that it comprises two tilt cylinders arranged parallel to each other and articulated at their first end on an upper part of the vehicle and at their second end on a region located in an upper part of each of the brackets and at the rear thereof .

Le troisième et le quatrième axes sont de préférence alignés. Les équerres comportent avantageusement chacune un bras supérieur à l'extrémité arrière duquel s'articule la deuxième extrémité du vérin de basculement correspondant, et à l'extrémité avant duquel est disposé le deuxième axe, ainsi qu'un prolongement s'étendant depuis le bras supérieur jusqu'à ladite région d'articulation. Les prolongements des équerres présentent avantageusement une région centrale nervurée ou ajourée. Le dispositif peut comporter au moins un élément, par exemple cylindrique, de renfort mécanique reliant mécaniquement les deux équerres. En particulier, un dit élément de renfort peut être disposé de manière à relier les extrémités arrière des équerres. Le dispositif peut comporter une plaque pivotant autour d'un axe solidaire du poinçon, de part et d'autre de laquelle sont montés deux câbles d'ouverture du pont. En position repliée du vérin de pivotement, la plaque peut être alors prise entre une butée portée par un dit élément de renfort mécanique, de préférence celui qui relie les extrémités arrière des équerres, et une butée du poinçon.The third and fourth axes are preferably aligned. The brackets each advantageously comprise an upper arm at the rear end of which the second end of the corresponding tilting cylinder is articulated, and at the front end of which the second axis is disposed, as well as an extension extending from the arm higher up to said articulation region. The extensions of the brackets advantageously have a ribbed or perforated central region. The device can comprise at least one element, for example cylindrical, of mechanical reinforcement mechanically connecting the two brackets. In particular, a said reinforcing element can be arranged so as to connect the rear ends of the brackets. The device may comprise a plate pivoting about an axis secured to the punch, on either side of which are mounted two cables for opening the bridge. In the folded position of the pivoting jack, the plate can then be taken between a stop carried by a said mechanical reinforcing element, preferably that which connects the rear ends of the brackets, and a stop of the punch.

Il est avantageux que le vérin de poinçon soit logé entre les deux équerres et présente une première extrémité articulée au patin d'appui autour d'un cinquième axe situé dans une région centrale du patin d'appui et une deuxième extrémité articulée autour d'un sixième axe porté par le poinçon et situé au voisinage de l'extrémité aval du poinçon.It is advantageous that the punch cylinder is housed between the two brackets and has a first end articulated to the support shoe around a fifth axis located in a central region of the support shoe and a second end articulated around a sixth axis carried by the punch and located in the vicinity of the downstream end of the punch.

Le dispositif selon l'invention présente avantageusement deux vérins de pivotement articulés au patin d'appui à l'extrémité d'étriers disposés entre les équerres et de part et d'autre du poinçon, lesdits étriers s'étendant perpendiculairement à la face d'appui du patin d'appui.The device according to the invention advantageously has two pivoting cylinders articulated on the support pad at the end of stirrups arranged between the brackets and on either side of the punch, said stirrups extending perpendicular to the face of support of the support shoe.

Pour permettre le déploiement d'un pont ciseau, le dispositif selon l'invention comporte avantageusement un dispositif tendeur de câbles de déploiement du pont, actionné par deux vérins d'ouverture articulés, à leur extrémité amont, à la partie centrale d'un bras supérieur des équerres.To allow the deployment of a scissor bridge, the device according to the invention advantageously comprises a tensioning device for deploying the bridge cables, actuated by two opening cylinders articulated, at their upstream end, at the central part of an arm upper of the brackets.

D'autres caractéristiques et avantages de l'invention apparaîtront mieux à la lecture de la description qui va suivre, donnée à titre d'exemple non limitatif, en liaison avec les dessins ci-annexés, dans lesquels :

  • la figure 1a représente en perspective un char portant un pont du type ciseau et équipé d'un dispositif de déploiement selon l'invention, la figure 1b étant une vue de côté de la figure 1a ;
  • la figure 2 représente un char équipé d'un dispositif de déploiement selon l'invention, ce dispositif de déploiement étant en position repliée, par exemple suite à la pose du pont précité, le char représenté sur cette figure étant également équipé en partie arrière d'un dispositif de maintien réglable du pont ;
  • les Figures 3a à 3d illustrent la pose d'un pont du type ciseau à l'aide du dispositif de déploiement selon la présente invention ;
  • les Figures 4a et 4b représentent deux vues en perspective l'une en trois quarts avant vue par le dessus et l'autre en trois quarts avant vue par le dessous du dispositif de déploiement selon l'invention ;
Other characteristics and advantages of the invention will appear better on reading the description which follows, given by way of nonlimiting example, in conjunction with the attached drawings, in which:
  • Figure 1a shows in perspective a cart carrying a bridge of the chisel type and equipped with a deployment device according to the invention, Figure 1 b being a side view of Fig 1a;
  • 2 shows a tank equipped with a deployment device according to the invention, this deployment device being in the folded position, for example following the installation of the aforementioned bridge, the tank shown in this figure also being equipped in the rear '' an adjustable bridge holding device;
  • Figures 3 a to 3 d illustrate the installation of a scissor type bridge using the deployment device according to the present invention;
  • Figures 4 a and 4 b show two perspective views, one in three quarters before seen from above and the other in three quarters before seen from below of the deployment device according to the invention;

Le dispositif de déploiement de pont décrit ci-après est plus particulièrement conçu pour permettre de poser et reprendre au sol le pont n° 10 précité du type ciseau et le pont n° 12 précité qui comporte deux travures simples superposées, ces ponts étant commercialisés par la Société THOMPSON DEFENSE PROJECTS LIMITED.The bridge deployment device described below is more particularly designed to allow the aforementioned n ° 10 chisel-type bridge and the aforementioned n ° 12 bridge to be placed and taken up on the ground, which comprises two superimposed spans, these bridges being sold THOMPSON DEFENSE PROJECTS LIMITED.

Le dispositif de déploiement comporte selon un mode de réalisation préféré :

  • deux équerres référencées 30 reliées entre elles par trois tirants 36, 37 et 70 et pivotant autour d'un axe 11 solidaire de la partie supérieure avant du châssis d'un véhicule porte-pont tel qu'un char 1 sous l'action de verins de basculement 21,
  • un patin 40 d'appui au sol pivotant autour d'un axe 49 solidaire des équerres 30 et animé par deux vérins de pivotement 22,
  • un poinçon 60 qui est une pièce de forme allongée pivotant autour d'un axe 65 solidaire du patin et qui est animé par un vérin de poinçon 23,
  • une plaque en U 50 présentant deux branches 51 pivotant autour d'un axe 66 solidaire du poinçon 60, plaque de part et d'autre de laquelle sont montés premièrement deux câbles 15 assurant l'ouverture des deux parties respectivement amont 5 et aval 6 du pont 3 et deuxièmement deux vérins d'ouverture 24 assurant, dans le cas d'un pont ciseau, le réglage de l'ouverture du pont 3.
The deployment device comprises according to a preferred embodiment:
  • two brackets referenced 30 connected together by three tie rods 36, 37 and 70 and pivoting around an axis 11 secured to the upper front part of the chassis of a bridge-carrying vehicle such as a tank 1 under the action of jacks tilting 21,
  • a pad 40 for supporting the ground pivoting about an axis 49 integral with the brackets 30 and driven by two pivoting cylinders 22,
  • a punch 60 which is an elongated piece pivoting about an axis 65 integral with the shoe and which is driven by a punch cylinder 23,
  • a U-shaped plate 50 having two branches 51 pivoting about an axis 66 integral with the punch 60, a plate on either side of which are mounted first two cables 15 ensuring the opening of the two parts respectively upstream 5 and downstream 6 of the bridge 3 and secondly two opening jacks 24 ensuring, in the case of a scissor bridge, the adjustment of the opening of bridge 3.

Ainsi qu'il va apparaître dans la suite de la description, le dispositif de déploiement tel que décrit permet de ne pas perturber l'accès et la vision au poste de pilotage et permet d'effectuer un lancement du pont par l'avant ; il possède de préférence un réglage d'ouverture du pont ciseau en fonction de la brèche à traverser.As will appear in the following description, the deployment device as described makes it possible not to disturb access and vision to the cockpit and makes it possible to launch the deck from the front; it preferably has an opening adjustment of the scissor bridge as a function of the breach to be crossed.

Le dispositif de déploiement est positionné à l'avant 10 du char 1. Il est fixé en quatre points, à savoir en deux points 16 à l'avant du véhicule et deux points 17 sur la tourelle 12 (voir en particulier la figure 2). Les deux points d'attache 16 permettent l'articulation des équerres 30 autour de l'axe 11 alors que les deux points d'attache 17 permettent l'articulation de l'extrémité amont du vérin de basculement 21 autour des axes 14.The deployment device is positioned at the front 10 of the tank 1. It is fixed at four points, namely at two points 16 at the front of the vehicle and two points 17 on the turret 12 (see in particular Figure 2) . The two attachment points 16 allow the articulation of the brackets 30 around the axis 11 while the two attachment points 17 allow the articulation of the upstream end of the tilting cylinder 21 around the axes 14.

Le concept de double équerre permet par rapport aux dispositifs de déploiement de l'Art Antérieur, par exemple le dispositif précité fabriqué par la Société VICKERS, de limiter le nombre de composants mécaniques et hydrauliques qui perturbent l'accès et la vision du poste de pilotage. En effet, comme le montre particulièrement la figure 1a, les points de fixation 16 des doubles équerres 30 sur l'axe 11 sont situés au voisinage immédiat de la partie interne des chenilles du char 1 et le bras supérieur 31 des équerres 30 est, en position de transport, pratiquement horizontal, le patin 40 étant quant à lui pratiquement vertical et dans une position suffisamment relevée pour dégager la vue à l'avant à partir de la tourelle. Ceci apporte un avantage important par rapport au treillis de l'Art Antérieur qui imposait une gêne considérable à la visibilité.The concept of double angle allows compared to the deployment devices of the Prior Art, for example the aforementioned device manufactured by the VICKERS Company, to limit the number of mechanical and hydraulic components which disturb access and vision of the cockpit . In fact, as shown in particular in FIG. 1 a , the fixing points 16 of the double brackets 30 on the axis 11 are located in the immediate vicinity of the internal part of the tracks of the tank 1 and the upper arm 31 of the brackets 30 is, in the transport position, practically horizontal, the shoe 40 being practically vertical and in a position sufficiently raised to clear the view to the front from the turret. This brings an important advantage compared to the lattice of the Prior Art which imposed a considerable embarrassment to the visibility.

On notera que le montage du dispositif de déploiement n'entraîne que des modifications mineures du châssis du char. La fixation en 16 est assurée par deux oreilles soudées sur la tôle frontale 10 de la caisse, et les vérins de basculement 21 sont montés de manière simple sur la tourelle 12.Note that the mounting of the deployment device only causes minor modifications to the chassis of the tank. The fixing at 16 is ensured by two ears welded to the front plate 10 of the body, and the tilting jacks 21 are simply mounted on the turret 12.

L'ouverture du pont peut être ainsi commandée à partir du poste de pilotage. Les deux vérins d'ouverture 24, solidaires du dispositif de déploiement, assurent également le réglage du pont ciseau en fonction de la brèche à traverser.The opening of the deck can thus be controlled from the cockpit. The two opening jacks 24, integral with the deployment device, also ensure the adjustment of the scissor bridge as a function of the breach to be crossed.

La cinématique de déploiement se déroule en trois phases, dont la dernière est une phase combinée.The deployment kinematics takes place in three phases, the last of which is a combined phase.

Au repos, l'ensemble est complètement replié (voir figure 1a et 1b). Les différents vérins sont rentrés, les éléments composant le dispositif de déploiement reposent sur leur butée respective.At rest, the assembly is completely folded (see Figure 1 a and 1 b ). The different cylinders are retracted, the elements making up the deployment device rest on their respective stops.

Dans la première phase représentée à la figure 3a, on met en oeuvre les vérins de basculement 21, ce qui a pour effet de faire pivoter d'un bloc l'ensemble jusqu'à ce que le patin 40 touche le sol par son bord d'attaque arrondi 48.In the first phase shown in FIG. 3 a , the tilting cylinders 21 are used, which has the effect of rotating the assembly by one block until the shoe 40 touches the ground by its edge. rounded attack 48.

La deuxième phase consiste en la mise en oeuvre des vérins de pivotement 22. Ceci est représenté à la figure 3b. L'action des vérins de pivotement 22 a pour effet de faire pivoter le patin d'appui 40 jusqu'à ce que sa face inférieure 43 appuie complètement sur le sol.The second phase consists in the implementation of the pivoting cylinders 22. This is shown in FIG. 3 b . The action of the pivoting cylinders 22 has the effect of rotating the support pad 40 until its underside 43 presses completely on the ground.

La troisième phase, ou phase combinée, met en oeuvre le déploiement des vérins de poinçon 23 et d'ouverture 24, provoquant un déploiement complet du pont comme représenté aux figures 3c et 3b.The third phase, or combined phase, implements the deployment of the punch 23 and opening 24 jacks, causing complete deployment of the bridge as shown in FIGS. 3 c and 3 b .

Le dispositif de déploiement va être décrit ci-après de manière plus complète, en rapportant son fonctionnement aux phases 1 à 3 précitées.The deployment device will be described below in a more complete manner, by relating its operation to the aforementioned phases 1 to 3.

Les vérins de basculement 21 sont articulés en 14 sur le point d'attache 17 situé à la partie avant à la tourelle 12 et en 18 à l'extrémité 38 du bras supérieur 31 de l'équerre respective 30. L'équerre 30 présente un prolongement dirigé vers le bas comportant deux bras auxiliaires 32 et 33 se rejoignant en 29 pour former un V, les équerres étant ajourées (ouvertures 34 et 35). De manière à renforcer la rigidité mécanique des équerres 30, des tirants cylindriques 36, 37 et 70 relient entre elles les équerres respectivement, d'une part, à l'extrémité inférieure 29 à laquelle les équerres sont fixées en 16 à l'avant du châssis du char 1, le tirant 36 étant de ce fait aligné avec l'axe 11, d'autre part, dans une partie médiane du bras supérieur 31 entre les ouvertures 34 et 35, 1à où s'effectue l'articulation des vérins d'ouverture 24 sur les équerres 30 par l'intermédiaire de deux étriers 27 disposés aux extrémités du tirant 37, et enfin, à la partie arrière 38 du bras supérieur 31, au voisinage de l'axe 18 de pivotement des vérins de basculement 21. Le bord d'attaque 48 de forme arrondie présente en une région médiane une ouverture 41 de forme sensiblement rectangulaire laquelle présente deux pattes 47 disposées de manière à permettre l'articulation des extrémités aval 39 des bras supérieurs 31 des équerres 30, ce qui réalise l'articulation entre ces dernières et le patin d'appui 40 autour de l'axe 49 (voir en particulier les figures 4a et 4b).The tilting cylinders 21 are articulated at 14 on the point of attachment 17 located at the front part to the turret 12 and at 18 at the end 38 of the upper arm 31 of the respective bracket 30. The bracket 30 has a extension directed downwards comprising two auxiliary arms 32 and 33 joining at 29 to form a V, the brackets being perforated (openings 34 and 35). In order to reinforce the mechanical rigidity of the brackets 30, cylindrical tie rods 36, 37 and 70 connect the brackets respectively, on the one hand, to the lower end 29 to which the brackets are fixed at 16 in front of the chassis of the tank 1, the tie rod 36 being thereby aligned with the axis 11, on the other hand, in a middle part of the upper arm 31 between the openings 34 and 35, 1 where the articulation of the cylinders d takes place opening 24 on the brackets 30 by means of two stirrups 27 arranged at the ends of the tie rod 37, and finally, at the rear part 38 of the upper arm 31, in the vicinity of the pivot axis 18 of the tilting cylinders 21. The leading edge 48 of rounded shape has in an intermediate region an opening 41 of substantially rectangular shape which has two legs 47 arranged so as to allow the articulation of the downstream ends 39 of the upper arms 31 of the brackets 30, which performs the articulation between the latter and the support pad 40 around the axis 49 (see in particular Figures 4 a and 4 b ).

Les vérins de pivotement 22 sont articulés au patin 40 à l'extrémité d'étriers 26 situés de part et d'autre du poinçon 60 et entre les équerres 30, au voisinage de celles-ci. Les étriers 26 s'étendent perpendiculairement à la face d'appui 43 du patin 40, de sorte qu'ils se retrouvent en position verticale lorsque le patin 40 est posé sur le sol par sa face d'appui 43.The pivoting cylinders 22 are articulated on the pad 40 at the end of stirrups 26 located on either side of the punch 60 and between the brackets 30, in the vicinity of these. The stirrups 26 extend perpendicularly to the bearing face 43 of the shoe 40, so that they are in the vertical position when the shoe 40 is placed on the ground by its bearing face 43.

Les phases 1 et 2 précitées mettent en oeuvre les vérins de basculement 21 et de pivotement 22 dont l'agencement a été décrit ci-dessus.The aforementioned phases 1 and 2 use the tilting 21 and pivoting 22 cylinders, the arrangement of which has been described above.

La phase 3 ou phase combinée met en oeuvre l'action des vérins de poinçon 23 et d'ouverture 24, dont le fonctionnement est précisé par la description ci-après.Phase 3 or combined phase implements the action of the punch 23 and opening 24 jacks, the operation of which is specified by the description below.

Le poinçon 60 est une pièce allongée mobile en rotation autour d'un axe 65 par rapport au patin 40. Il est fixé par deux pattes 61 qui encadrent une région en saillie 45 de part et d'autre de laquelle sont disposées des oreilles 46. La fixation du poinçon 60 au patin 40 s'effectue entre les crochets 44 d'accrochage de la partie amont 5 du pont qui forment un axe de pivotement du pont, et donc dans une partie médiane du patin 40 . Le poinçon 60 est une pièce allongée en forme générale de U et dont l'extrémité aval 63, qui présente un cône 67 de positionnement de la travure 5 (voir figure 4b), vient se loger dans une région prévue à cet effet de la partie amont 5 du pont. Le vérin de poinçon 23, quant à lui, est articulé entre d'une part un axe 52 situé à l'extrémité d'un étrier central 28 situé entre les étriers 26, s'étendant comme eux perpendiculairement à la face d'appui 43 des patins 40, et de forme semblable à ceux-ci, et d'autre part un axe 64 situé au voisinage de l'extrémité 63 du poinçon 60. Lorsque l'on rentre le vérin de poinçon, le poinçon 60 vient se mettre en butée sur l'étrier central 28 appartenant au patin 40. Lorsque l'on rentre les vérins de pivotement, la plaque en U 50 est prise entre les butées 72 appartenant au poinçon 60 et les butées 71 appartenant au tirant 70. Une fois ces mises en butée effectuées, le véhicule est en configuration de transport.The punch 60 is an elongate piece movable in rotation about an axis 65 relative to the shoe 40. It is fixed by two legs 61 which frame a projecting region 45 on either side of which ears 46 are arranged. The punch 60 is fixed to the shoe 40 between the hooks 44 for hooking the upstream part 5 of the bridge which form a pivot axis of the bridge, and therefore in a middle part of the shoe 40. The punch 60 is an elongated part in the general shape of a U and whose downstream end 63, which has a cone 67 for positioning the span 5 (see FIG. 4 b ), is housed in a region provided for this purpose of the upstream part 5 of the bridge. The punch cylinder 23, for its part, is articulated between on the one hand an axis 52 located at the end of a central stirrup 28 located between the stirrups 26, extending like them perpendicular to the bearing face 43 pads 40, and similar in shape to these, and on the other hand an axis 64 located near the end 63 of the punch 60. When the punch cylinder is returned, the punch 60 comes into position stop on the central stirrup 28 belonging to the shoe 40. When the pivoting cylinders are retracted, the U-shaped plate 50 is taken between the stops 72 belonging to the punch 60 and the stops 71 belonging to the tie rod 70. Once these settings have been made when it stops, the vehicle is in transport configuration.

Comme le montrent les Figures 3c et 3d, la fonction du poinçon 60 est de faire pivoter l'ensemble du pont qui, dans le cas d'un pont ciseau, est retenu par les câbles 15. La longueur des câbles 15 peut être modifiée grâce aux vérins d'ouverture 24, ce qui permet un réglage d'un pont ciseau en fonction de la brèche à franchir. Les câbles 15 sont tendus entre, d'une part l'extrémité d'un bras 55 solidaire d'un bâti 56 porté par l'élément aval 6 du pont et situé au voisinage de l'axe de rotation 57 des deux éléments 5 et 6 par rapport à l'autre et au-dessus de ceux-ci dans la position représentée à la Figure 3b, et d'autre part une extrémité de la pièce en U 50. Le pivotement du pont sous l'action du vérin de poinçon 23 provoque ainsi son ouverture, le degré d'ouverture dépendant, dans le cas d'un pont ciseau, de la longueur des câbles 15. Les vérins d'ouverture 24 sont articulés, chacun à une extrémité, à l'étrier 27 et, à leur autre extrémité, en 54, à la branche centrale de la pièce en U 50, laquelle présente deux bras 51 qui sont eux-mêmes articulés au poinçon 60 autour d'un axe 66 grâce à deux étriers 62 disposés en dessous du poinçon 60 et espacés latéralement l'un par rapport à l'autre. Les étriers 62 sont situés à une certaine distance de l'extrémité avant 63 de sorte que, le dispositif étant en position repliée (figures 1a, 1b, 4a, 4b), la pièce en U 50 est située en majeure partie en-dessous du poinçon 60.As shown in Figures 3 c and 3 d , the function of the punch 60 is to rotate the entire bridge which, in the case of a scissor bridge, is retained by the cables 15. The length of the cables 15 can be modified thanks to the opening jacks 24, which allows an adjustment of a scissor bridge according to the breach to cross. The cables 15 are stretched between, on the one hand, the end of an arm 55 secured to a frame 56 carried by the downstream element 6 of the bridge and situated in the vicinity of the axis of rotation 57 of the two elements 5 and 6 relative to each other and above them in the position shown in Figure 3b , and on the other hand one end of the U-shaped part 50. The pivoting of the bridge under the action of the jack punch 23 thus causes its opening, the degree of opening depending, in the case of a scissor bridge, on the length of the cables 15. The opening jacks 24 are articulated, each at one end, to the stirrup 27 and , at their other end, at 54, to the central branch of the U-shaped part 50, which has two arms 51 which are themselves articulated with the punch 60 around an axis 66 by means of two stirrups 62 arranged below the punch 60 and spaced laterally from each other. The stirrups 62 are located at a certain distance from the front end 63 so that, the device being in the folded position (FIGS. 1 a , 1 b , 4 a , 4 b ), the U-shaped part 50 is mainly located below the punch 60.

Au cours des phases 2 et 3, se produit une rotation du poinçon 60, des travures 5 et 6, de la plaque en U 50, du vérin de poinçon 23 et des vérins d'ouverture 24.During phases 2 and 3, there is a rotation of the punch 60, the spans 5 and 6, the U-shaped plate 50, the punch cylinder 23 and the opening cylinders 24.

La position de la tige des vérins d'ouverture 24 permet un réglage des câbles 15, et donc du degré d'ouverture du pont ciseau.The position of the rod of the opening cylinders 24 allows adjustment of the cables 15, and therefore of the degree of opening of the scissor bridge.

Claims (12)

Dispositif de déploiement d'un pont comportant deux travures superposées (5,6) respectivement amont et aval qui sont déplaçables entre une position de transport dans laquelle les deux travures (5,6) sont repliées et superposées et sont portées par un véhicule (1), et une position de déploiement dans laquelle les deux travures (5,6) sont disposées sensiblement dans le prolongement l'une de l'autre pour former un pont déployé, ledit dispositif comportant un moyen de basculement (30) pivotant autour d'au moins un premier axe (11) solidaire dudit véhicule (1) sous l'action d'au moins un vérin de basculement (21), l'élément de basculement (30) supportant le pont pendant au moins une phase préliminaire de son déploiement, un patin (40) d'appui au sol, présentant une face d'appui (43) et pivotant autour d'un deuxième axe (49) par rapport à l'élément de basculement (30) sous l'action d'au moins un vérin de pivotement (22), l'extrémité amont de ladite partie amont du pont étant articulée autour d'un troisième axe (44) porté par le patin d'appui (40), et un poinçon (60) de pivotement du pont actionné par au moins un vérin de poinçon (23) et articulé à une extrémité amont autour d'un quatrième axe (65) solidaire du patin d'appui (40) et présentant une extrémité aval (67) logée dans ladite travure amont (5) du pont, caractérisé en ce que le moyen de basculement comporte deux équerres (30) qui sont espacées latéralement l'une de l'autre et qui sont articulées chacune en une région d'articulation (16) située sur ledit premier axe (11), et en ce qu'il comporte deux vérins de basculement (21) disposés parallèlement l'un à l'autre et articulés à leur première extrémité sur une partie supérieure du véhicule (12) et à leur deuxième extrémité à une partie supérieure (31) de l'équerre (30) et à l'arrière (38) de celle-ci.Device for deploying a bridge comprising two superimposed spans (5,6) respectively upstream and downstream which are movable between a transport position in which the two spans (5,6) are folded and superimposed and are carried by a vehicle (1 ), and a deployment position in which the two spans (5,6) are arranged substantially in the extension of one another to form a deployed bridge, said device comprising a tilting means (30) pivoting around at least a first axis (11) integral with said vehicle (1) under the action of at least one tilting cylinder (21), the tilting element (30) supporting the bridge during at least a preliminary phase of its deployment , a pad (40) for supporting the ground, having a bearing face (43) and pivoting about a second axis (49) relative to the tilting element (30) under the action of at least one pivoting cylinder (22), the upstream end of said upstream part of the p are articulated around a third axis (44) carried by the support shoe (40), and a punch (60) for pivoting the bridge actuated by at least one punch cylinder (23) and articulated at an upstream end around a fourth axis (65) integral with the support pad (40) and having a downstream end (67) housed in said upstream span (5) of the bridge, characterized in that the tilting means comprises two brackets (30 ) which are spaced laterally from each other and which are each articulated in an articulation region (16) located on said first axis (11), and in that it comprises two tilting cylinders (21) arranged parallel to each other and articulated at their first end on an upper part of the vehicle (12) and at their second end to an upper part (31) of the bracket (30) and at the rear (38) of it. Dispositif selon la revendication 1 caractérisé en ce que les équerres (30) comportent chacune un bras supérieur (31) à l'extrémité arrière (38) duquel s'articule la deuxième extrémité du vérin de basculement (21) correspondant et à l'extrémité avant (39) duquel est disposé le deuxième axe, et en ce qu'elles comportent un prolongement (32, 33) s'étendant depuis le bras supérieur jusqu'à ladite région d'articulation (16).Device according to claim 1 characterized in that the brackets (30) each comprise an upper arm (31) at the rear end (38) from which the second end of the corresponding tilting cylinder (21) is articulated and at the end before (39) of which is disposed the second axis, and in that they comprise an extension (32, 33) extending from the upper arm to said articulation region (16). Dispositif selon la revendication 2, caractérisé en ce que les prolongements (32, 33) des équerres présentent une région centrale (34, 35) nervurée ou ajourée.Device according to claim 2, characterized in that the extensions (32, 33) of the brackets have a central region (34, 35) ribbed or perforated. Dispositif selon une des revendications 1 à 3, caractérisé en ce que le troisième (44) et le quatrième (65) axes sont alignés.Device according to one of claims 1 to 3, characterized in that the third (44) and the fourth (65) axes are aligned. Dispositif selon une des revendications 1 à 4, caractérisé en ce qu'il comporte au moins un élément (36,37,70) de renfort mécanique reliant mécaniquement les deux équerres (30).Device according to one of claims 1 to 4, characterized in that it comprises at least one element (36,37,70) of mechanical reinforcement mechanically connecting the two brackets (30). Dispositif selon la revendication 5, caractérisé en ce qu'il comporte une plaque (50) pivotant autour d'un axe (66) solidaire du poinçon (60), de part et d'autre de laquelle sont montés deux câbles (15) d'ouverture du pont et en ce que, en position repliée du vérin de pivotement (22), la plaque (50) est prise entre une butée (71) portée par un dit élément de renfort mécanique (70) des équerres (30) et une butée (72) du poinçon (66).Device according to claim 5, characterized in that it comprises a plate (50) pivoting about an axis (66) integral with the punch (60), on either side of which are mounted two cables (15) d opening of the bridge and in that, in the folded position of the pivoting cylinder (22), the plate (50) is taken between a stop (71) carried by a said mechanical reinforcement element (70) of the brackets (30) and a stop (72) of the punch (66). Dispositif selon une des revendications précédentes, caractérisé en ce que le vérin de poinçon (23) est logé entre les deux équerres (30) et présente une première extrémité articulée au patin d'appui (40) autour d'un cinquième axe (52) situé dans une région centrale du patin d'appui (40) et une deuxième extrémité articulée autour d'un sixième axe (64) porté par le poinçon (60) et situé au voisinage de l'extrémité aval du poinçon (60).Device according to one of the preceding claims, characterized in that the punch cylinder (23) is housed between the two brackets (30) and has a first end articulated to the support pad (40) around a fifth axis (52) located in a central region of the support shoe (40) and a second end articulated around a sixth axis (64) carried by the punch (60) and located near the downstream end of the punch (60). Dispositif selon la revendication 7, caractérisé en ce que le cinquième axe (52) est disposé à l'extrémité d'un étrier central (28) s'étendant perpendiculairement à la face d'appui (43) du patin (40).Device according to claim 7, characterized in that the fifth axis (52) is disposed at the end of a central stirrup (28) extending perpendicular to the bearing face (43) of the shoe (40). Dispositif selon une des revendications précédentes, caractérisé en ce que, dans la position de transport, le patin (40) est dans une position relevée permettant de dégager la vue vers l'avant du véhicule.Device according to one of the preceding claims, characterized in that, in the transport position, the shoe (40) is in a raised position allowing the view towards the front of the vehicle to be cleared. Dispositif selon une des revendications précédentes, caractérisé en ce que ledit câble (15) de déploiement du pont (5, 6) est actionné par au moins un vérin d'ouverture (24).Device according to one of the preceding claims, characterized in that said cable (15) for deploying the bridge (5, 6) is actuated by at least one opening cylinder (24). Dispositif selon une des revendications précédentes, caractérisé en ce qu'il comporte deux vérins de pivotement (22) articulés au patin d'appui (40) à l'extrémité d'étriers (26) disposés au niveau des équerres (30) et de part et d'autre du poinçon (60), lesdits étriers (26) s'étendant perpendiculairement à la face d'appui (43) du patin d'appui (40).Device according to one of the preceding claims, characterized in that it comprises two pivoting cylinders (22) articulated on the support pad (40) at the end of stirrups (26) arranged at the brackets (30) and on either side of the punch (60), said stirrups (26) extending perpendicular to the bearing face (43) of the bearing pad (40). Dispositif selon une des revendications précédentes, caractérisé en ce qu'il comporte un dispositif tendeur de câbles de déploiement du pont actionné par deux vérins d'ouverture (24) articulés, à une extrémité amont, à la partie centrale d'un bras supérieur (31) des équerres (30).Device according to one of the preceding claims, characterized in that it comprises a device for tensioning the deployment cables of the bridge actuated by two opening jacks (24) articulated, at an upstream end, to the central part of an upper arm ( 31) brackets (30).
EP19960400373 1995-03-08 1996-02-23 Apparatus for unfolding a bridge consisting of two superimposed bridge elements Expired - Lifetime EP0731219B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9502694 1995-03-08
FR9502694A FR2731447B1 (en) 1995-03-08 1995-03-08 DEVICE FOR DEPLOYING A BRIDGE WITH TWO OVERLAPED WORKS

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EP0731219A1 true EP0731219A1 (en) 1996-09-11
EP0731219B1 EP0731219B1 (en) 2001-11-07

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DE69616617T2 (en) 2002-08-01
EP0731219B1 (en) 2001-11-07
FR2731447B1 (en) 1997-06-06
FR2731447A1 (en) 1996-09-13
DE69616617D1 (en) 2001-12-13

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