EP3677484B1 - Connection device between the brace and the end platforms of a combined road/rail transport carriage - Google Patents

Connection device between the brace and the end platforms of a combined road/rail transport carriage Download PDF

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Publication number
EP3677484B1
EP3677484B1 EP19205800.6A EP19205800A EP3677484B1 EP 3677484 B1 EP3677484 B1 EP 3677484B1 EP 19205800 A EP19205800 A EP 19205800A EP 3677484 B1 EP3677484 B1 EP 3677484B1
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EP
European Patent Office
Prior art keywords
pull ring
nut
rod
connecting device
rail wagon
Prior art date
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Active
Application number
EP19205800.6A
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German (de)
French (fr)
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EP3677484A1 (en
Inventor
Jacques Ober
Jean-Luc Andre
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Lohr Industrie SA
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Lohr Industrie SA
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Priority to PL19205800T priority Critical patent/PL3677484T3/en
Publication of EP3677484A1 publication Critical patent/EP3677484A1/en
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Publication of EP3677484B1 publication Critical patent/EP3677484B1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D3/00—Wagons or vans
    • B61D3/16—Wagons or vans adapted for carrying special loads
    • B61D3/18—Wagons or vans adapted for carrying special loads for vehicles
    • B61D3/187—Details, e.g. bridges for floor connections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D3/00—Wagons or vans
    • B61D3/16—Wagons or vans adapted for carrying special loads
    • B61D3/18—Wagons or vans adapted for carrying special loads for vehicles
    • B61D3/182—Wagons or vans adapted for carrying special loads for vehicles specially adapted for heavy vehicles, e.g. public work vehicles, trucks, trailers
    • B61D3/184—Wagons or vans adapted for carrying special loads for vehicles specially adapted for heavy vehicles, e.g. public work vehicles, trucks, trailers the heavy vehicles being of the trailer or semi-trailer type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D47/00—Loading or unloading devices combined with vehicles, e.g. loading platforms, doors convertible into loading and unloading ramps
    • B61D47/005—Loading or unloading devices combined with road vehicles carrying wagons, e.g. ramps, turntables, lifting means

Definitions

  • the present invention relates to a railway wagon for the combined rail / road transport of a road load and comprising two end platforms equipped with bogies, interconnected by a tie rod, and supporting a pivoting structure carrying the road load.
  • the invention relates more particularly to a connecting device designed to connect each end platform to the tie rod.
  • a railway wagon for the combined rail / road transport of a road load which comprises two end platforms equipped with bogies, interconnected by a tie rod, and supporting a pivoting structure carrying the road load.
  • the pivoting structure can pivot horizontally with respect to the end platforms between a transport position along the longitudinal axis of the wagon and an oblique or perpendicular loading / unloading position in which the road load can freely circulate between the loading dock and the bearing surface of the swivel structure.
  • Such a wagon is for example known from the document EP 1292478 .
  • the pivoting structure also generally as a supporting structure, is pivotally mounted around a pivot provided on a tie rod which connects the two end platforms.
  • the tie rod is generally equipped with bellows in order to allow the tie rod to descend relative to the pivoting structure in order to disengage the latter from the tie rod and allow it to pivot.
  • the tie-rod is in the form of a longitudinal connecting element which is fixed or articulated by each of its ends to an end platform in the lower part thereof.
  • the tie rod has no other main purpose than to mechanically connect the two end platforms to each other in order to retain them in their initial position during the loading / unloading phases. It is generally made with a small thickness so as not to penalize the useful loading dimensions with respect to the rail gauge. Indeed, the tie rod is only subject to its own weight and possible forces of separation and approach of the end platforms.
  • the pivoting structure When the wagon is in the transport position, or "closed wagon” position, the pivoting structure is in the low position and aligned longitudinally with the two end platforms, while when the wagon is in the loading / unloading position, or "open wagon position” »
  • the swivel structure is in a high position and oblique or perpendicular to the two end platforms.
  • the tie rod when the wagon is in the transport position, or in the "closed wagon” position, the tie rod does not take up the torque generated by the pocket and is only used to support conduits and cables, while when the wagon is in an oblique position or perpendicular for loading / unloading, or in the "open wagon” position, the tie rod keeps the two end platforms in position and materializes the pivoting center of the pivoting structure.
  • the tie rod also allows the mounting and circulation of the pneumatic pipes and the electric cables of the wagon.
  • tie rod is in the form of a middle part extending along the longitudinal axis of the wagon and comprising a fork with two arms provided at each end of the middle part.
  • the tie rod is simply fixed or articulated to an end platform by each of the free ends of the arms of the forks. To correct the aforementioned defects, it is therefore necessary to twist and force the tie rod until its deformations have no effect, and nothing is provided to allow the tie rod in particular to take up the torque generated by the pivoting structure resulting in a tensile force in the tie rod. To correct these defects, in the document EP 1292478 it is usually necessary to apply strong forces in order to deform the tie rod arms, usually empirically, until the wagon frame is flat and the stresses to each of the tie rod arms are substantially the same.
  • the object of the present invention therefore aims to overcome the drawbacks of the prior art by proposing a new connecting device designed to connect each end platform to the arms of the tie rod in a rail car of the type as described above.
  • each connecting device By screwing or unscrewing the nut on the threaded end of the rod of the traction ring within each connecting device, it is advantageously possible to adjust the distance between each of the arms of the forks of the tie rod and the end platform on which they are fixed.
  • the tie rod it is simple and easy to shape the tie rod so that it guarantees a planar geometry of the frame and makes it possible to have an isostatic connection with the two end platforms.
  • the nut of each connecting device has an annular groove provided in the face of the nut located on the side of the receiving part.
  • This annular groove makes it possible to reduce the stiffness of the nut and thus to reduce the mechanical stresses in the first engaged threads. It advantageously makes it possible to considerably increase the service life of the nut which retains the arms and whose thread is subjected to all tensile forces.
  • the locknut advantageously makes it possible to limit the movement of the tie rod relative to the end platforms in the event of a compressive force, in particular during the loading / unloading phases.
  • each connecting device further comprises a device for immobilizing and securing the nut which prevents rotation of the nut.
  • the rod of the traction ring comprises at least one longitudinal groove and the device for immobilizing and securing the nut comprises a nut stop plate fixed on the nut and having a central hole comprising at least one immobilizing tab projecting towards the center of said central hole, said nut stop plate being mounted on the rod of the pull ring with the at least one immobilization tab housed in at least one longitudinal groove of said rod.
  • This device advantageously makes it possible to prevent the rotation of the traction ring around its longitudinal axis in which the rod is located.
  • the nut stop plate is fixed to the nut by at least one screw locked in rotation.
  • the device for preventing rotation of the pull ring is itself secure.
  • each connecting device further comprises a lock nut stop piece having a fixing end fixed to the lock nut and a retaining end opposite to the fixing end. and extending towards the tie rod, this retaining end penetrating at least partially between the two horizontal and parallel plates of the traction ring and advantageously preventing the rotation of the locknut relative to the traction ring.
  • This stop piece also advantageously makes it possible to protect the thread of the traction ring.
  • each connecting device further comprises a support ring mounted on the rod of the traction ring between the receiving part and the nut, this nut being a nut within reach spherical, the convex portion of which with a spherical seat is directed towards the support ring, the contact surface of the support ring being concave and with a spherical seat.
  • each connecting device further comprises a washer mounted on the rod of the traction ring between the receiving part and the locknut. This washer advantageously allows the locknut to be tightened against the receiving part of the end platform.
  • the washer is a spring washer.
  • This spring washer is preferably tightened by the lock nut, but is not flattened in order to advantageously keep the ball joint of the nut.
  • the horizontal plate of the distal free end of the arms of the forks and / or each horizontal plate of the first part of the traction ring is / are of substantially oval shape.
  • the conformation of the horizontal plates also makes it possible to form a reliable and robust articulation between each traction ring and the arm of the tie rod to which it is connected.
  • the receiving part is in the form of a fixing loop provided orthogonal to the surface of the end platform on which it is secured or shaped.
  • the receiving part comprises a tubular sheath housed in its through orifice and intended to come into contact with the rod of the traction ring.
  • This sheath makes it possible in particular to avoid any wear between the rod of the traction ring and the receiving part of the end platform in which it is received.
  • each connecting device further comprises an additional connecting device retaining the distal free end of the fork arm with the end platform in the event of failure of the means retaining the stem. the traction ring with said end platform.
  • This additional redundant connection device provides additional security and advantageously makes it possible to prevent a pulling ring from becoming detached from the end platform to which it is connected.
  • the additional connection device is inexpensive, robust, efficient and simple to implement. Thanks to the oblong, it allows freedom of movement of each tie rod relative to the platform, which advantageously allows the adjustment made by the nut, while retaining the traction ring to the end platform in the event of failure in particular of the nut.
  • each connecting device further comprises a housing shaped in each end platform, into which at least partially penetrates the rod of the traction ring and the fixing part, the vertical support axis and the through-hole of the receiving part being housed in this housing.
  • each connection device further comprises an additional safety device provided on the end platform and comprising a safety strip located under the traction ring, in the immediate vicinity of said traction ring.
  • This additional redundant safety device provides additional safety and advantageously makes it possible to support the traction ring from below in order to prevent in particular that in the event of an impact or significant weight undergone by the traction ring, the latter is not damaged or does not separate from the end platform to which it is connected.
  • the connecting device of the invention in addition to making it possible to adjust the distance between each of the arms of the forks of the tie-rod and the end platform on which they are fixed, has numerous devices aimed at securing its constituent means and at redundant its liaison function in the event of failure. It thus offers maximum security for connecting the tie rod to the end platforms.
  • the railway wagon (1) according to the invention is intended for combined rail / road transport and the loading / unloading of a road load, preferably a semi-trailer. Such a railway wagon (1) is shown in a simplified manner on the figure 1 .
  • the railway wagon (1) according to the invention comprises two end platforms (2) connected by a tie rod (3) and equipped with bogies (4). It is this assembly (2, 3) which allows the railway wagon (1) according to the invention to run on rails.
  • the tie rod (3) is connected to each end platform (2) by a connecting device (not shown). Each of these connecting devices is preferably located at the level of the tie rod (3), in the lower part of each of the end platforms (2).
  • a tie rod (3) according to the invention is shown by way of example on the figure 2 .
  • This assembly (2, 3) formed by the end platforms (2) and the tie rod (3) support a pivoting structure (5) carrying the road load.
  • the tie-rod (3) is equipped with a pivot (6) which allows the pivoting structure (5) to be animated with a pivoting movement back and forth, in a horizontal plane, towards and beyond a platform between a transport position along the longitudinal axis of the railway wagon (1) and a loading / unloading position oblique or perpendicular to the transport position.
  • the ends of the pivoting structure (5) are open and accessible from the dock to allow the user to load or unload a road load on or outside said pivoting structure (5).
  • the pivoting structure (5) and the two end platforms (2) are mutually associated and aligned along the longitudinal axis of the railway wagon (1) and the ends of the pivoting structure (5) are closed by the end platforms (2).
  • pivoting structure (5) When the pivoting structure (5) is in the transport position, a lifting mechanism outside the wagon makes it possible to move the pivoting structure (5) vertically with respect to the two end platforms (2), so that said pivoting structure (5) ) is dissociated from the two end platforms (2) and can freely pivot relative to them.
  • the pivoting structure (5) can thus adopt a high position and a low position.
  • a mechanism generally in the form of a bellows provided at the level of the pivot (6) of the tie rod (3), allows the tie rod (3) to be released vertically from the pivoting structure (5) during the opening phases.
  • the pivoting structure (5) comprises a horizontal loading platform (7) bordered longitudinally by two protective side walls (8) delimited upwards by upper longitudinal members (9). These upper side members (9) usually make it possible to stiffen and support the pivoting structure (5).
  • the swivel structure (5) is only shown on the figures 1 and 6 .
  • the railway wagon (1) also comprises two connecting systems (10) provided to dissociably assemble the pivoting structure (5) and the two end platforms (2) when the pivoting structure (5) is in position. transport position.
  • Each connection system (10) is thus provided between each of the end platforms (2) and the pivoting structure (5), at the ends facing these elements (2, 5).
  • each connection system (10) can for example comprise male hooks (10a) provided at the ends of the upper side members (9) and female receiving hooks (10b) or projecting receiving parts provided at the inner ends of the two end platforms (2), the male hooks (10a) of the swivel structure (5) being provided for s 'engage in a dissociable manner with the female receiving hooks (10b) or the protruding receiving parts of the end platforms (2).
  • the tie rod (3) according to the invention comprises a middle part (11) extending along the longitudinal axis of the railway wagon (1), as well as a fork (12) with two arms (13) provided at each end longitudinal sections of the middle part of the tie rod (3).
  • the railway wagon (1) comprises four connecting devices (15) connecting the tie rod (3) to the two end platforms (2).
  • the connecting systems (10) take up in the upper part the horizontal and longitudinal forces between the horizontal loading platform (7) and the two end platforms (2).
  • the vertical support forces of the pivoting structure (5) on the two end platforms (2) are taken up by the tie rod (3).
  • the tie rod (3) alone takes up the tilting forces of the end platforms (2), that is to say it prevents the end platforms (2) from pivoting about an axis transverse to the longitudinal axis of the railway wagon (1).
  • each connecting device (15) comprises a traction ring (16) having a first part (17) directed towards the distal free end (14) of the fork arm (13) (12), the first part (17) of the traction ring (16) comprising two horizontal and parallel plates (18a, 18b), each having a through orifice (19), and between which is housed the distal free end (14) of said arm (13) of the forks (12).
  • Each traction ring (16) also has a second part (20) secured or shaped as a single piece with the first part (17), said second part (20) being extended by a rod (21) whose free end (22) is threaded and is directed towards the end platform (2).
  • a pull ring (16) is shown alone on the figure 12 .
  • Each connecting device (15) also comprises an axis (23) housed vertically through a through hole (24) provided at the distal free end of the arm (13) of the forks (12) and through the through holes (19). of the pull ring (16) in order to assemble the pull ring (16) to said arm (13) of the forks (12) pivotally in a horizontal plane.
  • Each connecting device (15) also comprises a receiving part (25) secured or shaped as a single piece with the end platform (2), and having a through orifice (26) through which the rod (21) is introduced. ) of the traction ring (16), so that the threaded part (22) of said rod (21) opens out on the other side of the through hole (26).
  • Each connecting device (15) also comprises a nut (27) screwed onto the threaded end (22) of the rod (21) of the pulling ring (16) and a lock nut (28) screwed onto the rod (21) of the traction ring (16) between the receiving part (25) and the first part (17) of the traction ring (16).
  • the nut (27) and the locknut (28) come to bear against the receiving part (25) and grip the latter in order to immobilize the rod (21) of the traction ring (16) in the part receiver (25).
  • the thread of the rod (21) and that of the nut (27) is preferably a round thread which works better and tires less for non-prestressed screwing.
  • each connecting device (15) further comprises a device for immobilizing and securing (29) the nut (27) which prevents rotation of the nut (27). .
  • the rod (21) of the traction ring (16) can comprise at least one longitudinal groove (30), preferably two
  • the device for immobilizing and securing (29) of the nut ( 27) comprises a nut stopper plate (31) fixed to the nut (27) and having a central hole (32) having at least one immobilizing tab (33) projecting towards the center of said central hole ( 32), said nut stop plate (31) being mounted on the rod (21) of the pull ring (16) with the at least one immobilizing tab (33) housed in the at least a longitudinal groove (30) of said rod (21), which prevents rotation of the nut (27).
  • the nut stop plate (31) is preferably fixed to the nut (27) by at least one screw blocked in rotation, and more preferably by at least two screws (34, 35) blocked in rotation, c ' that is, each of these screws is equipped with a device that prevents its rotation.
  • a screw can also be blocked in rotation by the use of a cam lock washer (38).
  • the nut stop plate (31) is fixed to the nut (27) by at least two screws, including a first hexagonal head screw (34) locked in position. rotation by a plate plate (36) and a socket head cap screw (35), for example of the Allen or Torx type, associated with a cam lock washer (38).
  • Each connecting device (15) preferably comprises a locknut stopper (39) having a fixing end (40) fixed to the locknut (28) and a retaining end (41) opposite to the fixing end (40) and extending towards the tie rod (3).
  • the retaining end (41) penetrates at least partially between the two horizontal and parallel plates (18a, 18b) of the traction ring (16) in order in particular to prevent the rotation of the lock nut (28) with respect to the traction ring (16).
  • Each connecting device (15) preferably comprises a support ring (42) mounted on the rod (21) of the traction ring (16) between the receiving part (25) and the nut (27), this nut (27) then preferably being a nut (27) with a spherical seat whose convex part with a spherical seat (43) is directed towards the support ring (42), the contact surface (44) of the support ring ( 42) being concave and spherical in contact.
  • Each connecting device (15) preferably comprises a washer (45) mounted on the rod (21) of the traction ring (16) between the receiving part (25) and the lock nut (28). It is preferably a spring washer.
  • the distal free end of the arm (13) of the forks (12) preferably comprises a horizontal plate (46) in which the through orifice (24) is formed.
  • the horizontal plates (46) of the arms (13) of the tie rod (3) and the horizontal plates (18a, 18b) of the traction ring (16) are preferably of substantially oval shape.
  • the receiving part (25) is in the form of a fixing loop (47) provided orthogonal to the surface of the end platform (2) on which it is secured or conformed.
  • the receiving part (25) preferably comprises a tubular sheath (48) housed in its through orifice (26) and designed to come into contact with the rod (21) of the traction ring (16).
  • each link device (15) further comprises a device additional connection (49) retaining the distal free end (14) of the fork arm (13) (12) with the end platform (2) in the event of failure of the means retaining the rod (21) of the ring traction (16) with said end platform (2).
  • each additional connecting device (49) comprises a fastening part (50) secured or shaped as a single piece with the horizontal plate (46) of said fork (12) and extending in the direction of the end platform (2) along the longitudinal axis of the fork arm (13) (12).
  • the fixing part (50) has a through oblong (51) through which penetrates a vertical support axis (52), secured to said end platform (2).
  • the railway wagon (1) includes a redundancy solution based on a locking between the tie rod (3) and each end platform (2).
  • each connecting device (15) further comprises a housing (53) shaped in each end platform (2), into which at least partially penetrates the rod (21) of the traction ring (16). and the fixing piece (50).
  • the vertical support axis (52) and the through orifice (26) of the receiving part (25) are located in this housing (53).
  • each connecting device (15) preferably comprises an additional safety device (54) provided on the end platform (2) and comprising a safety strip (55) located under the traction ring (16), to immediate proximity to said pull ring (16).

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Refuge Islands, Traffic Blockers, Or Guard Fence (AREA)
  • Handcart (AREA)
  • Connection Of Plates (AREA)

Description

Domaine techniqueTechnical area

La présente invention se rapporte à un wagon ferroviaire pour le transport combiné rail/route d'une charge routière et comprenant deux plateformes d'extrémité équipées de bogies, reliées entre elles par un tirant, et supportant une structure pivotante porteuse de la charge routière.The present invention relates to a railway wagon for the combined rail / road transport of a road load and comprising two end platforms equipped with bogies, interconnected by a tie rod, and supporting a pivoting structure carrying the road load.

L'invention concerne plus particulièrement un dispositif de liaison prévu pour relier chaque plateforme d'extrémité au tirant.The invention relates more particularly to a connecting device designed to connect each end platform to the tie rod.

Etat de la techniqueState of the art

On connaît un wagon ferroviaire pour le transport combiné rail/route d'une charge routière qui comprend deux plateformes d'extrémité équipées de bogies, reliées entre elles par un tirant, et supportant une structure pivotante porteuse de la charge routière.A railway wagon is known for the combined rail / road transport of a road load which comprises two end platforms equipped with bogies, interconnected by a tie rod, and supporting a pivoting structure carrying the road load.

La structure pivotante peut pivoter horizontalement par rapport aux plateformes d'extrémité entre une position de transport selon l'axe longitudinal du wagon et une position oblique ou perpendiculaire de chargement/déchargement dans laquelle la charge routière peut librement circuler entre le quai de chargement et la surface porteuse de la structure pivotante.The pivoting structure can pivot horizontally with respect to the end platforms between a transport position along the longitudinal axis of the wagon and an oblique or perpendicular loading / unloading position in which the road load can freely circulate between the loading dock and the bearing surface of the swivel structure.

Un tel wagon est par exemple connu du document EP 1292478 .Such a wagon is for example known from the document EP 1292478 .

Dans ce type de wagon, la structure pivotante, également généralement en tant que structure porteuse, est montée pivotante autour d'un pivot prévu sur un tirant qui relie les deux plateformes d'extrémité. Au niveau de ce pivot, le tirant est généralement équipé de soufflets afin de permettre de faire descendre le tirant par rapport à la structure pivotante afin de désengager celle-ci du tirant et autoriser son pivotement.In this type of wagon, the pivoting structure, also generally as a supporting structure, is pivotally mounted around a pivot provided on a tie rod which connects the two end platforms. At this pivot, the tie rod is generally equipped with bellows in order to allow the tie rod to descend relative to the pivoting structure in order to disengage the latter from the tie rod and allow it to pivot.

Dans le document EP 1292478 , le tirant est sous la forme d'un élément longitudinal de liaison qui est fixé ou articulé par chacune de ses extrémités à une plateforme d'extrémité en partie inférieure de celle-ci. Dans ce même document, le tirant n'a pas pour d'autre but principal que de relier mécaniquement les deux plateformes d'extrémité entre elles afin de les retenir dans leur position initiale pendant les phases de chargement/déchargement. Il est généralement réalisé avec une faible épaisseur pour ne pas pénaliser les dimensions utiles de chargement par rapport au gabarit ferroviaire. En effet, le tirant n'est soumis qu'à son propre poids et aux éventuelles forces d'éloignement et de rapprochement des plateformes d'extrémité.In the document EP 1292478 , the tie-rod is in the form of a longitudinal connecting element which is fixed or articulated by each of its ends to an end platform in the lower part thereof. In this same document, the tie rod has no other main purpose than to mechanically connect the two end platforms to each other in order to retain them in their initial position during the loading / unloading phases. It is generally made with a small thickness so as not to penalize the useful loading dimensions with respect to the rail gauge. Indeed, the tie rod is only subject to its own weight and possible forces of separation and approach of the end platforms.

Lorsque le wagon est position de transport, ou position « wagon fermé », la structure pivotante est en position basse et alignée longitudinalement avec les deux plateformes d'extrémité, tandis que lorsque le wagon est position de chargement/déchargement, ou position « wagon ouvert », la structure pivotante est en position haute et oblique ou perpendiculaire par rapport aux deux plateformes d'extrémité.When the wagon is in the transport position, or "closed wagon" position, the pivoting structure is in the low position and aligned longitudinally with the two end platforms, while when the wagon is in the loading / unloading position, or "open wagon position" », The swivel structure is in a high position and oblique or perpendicular to the two end platforms.

Dans le wagon décrit dans EP 1292478 , lorsque le wagon est en position de transport, ou en position « wagon fermé », le tirant ne reprend pas le couple généré par la poche et ne sert qu'à supporter des conduits et câbles, tandis que lorsque le wagon est en position oblique ou perpendiculaire de chargement/déchargement, ou en position « wagon ouvert », le tirant permet de maintenir en position les deux plateformes d'extrémité et de matérialiser le centre de pivotement de la structure pivotante.In the wagon described in EP 1292478 , when the wagon is in the transport position, or in the "closed wagon" position, the tie rod does not take up the torque generated by the pocket and is only used to support conduits and cables, while when the wagon is in an oblique position or perpendicular for loading / unloading, or in the "open wagon" position, the tie rod keeps the two end platforms in position and materializes the pivoting center of the pivoting structure.

De manière générale, le tirant permet également le montage et la circulation des conduites pneumatiques et des câbles électriques du wagon.In general, the tie rod also allows the mounting and circulation of the pneumatic pipes and the electric cables of the wagon.

Lors de l'assemblage du wagon, il est généralement difficile et compliqué de conformer le tirant pour obtenir une liaison isostatique avec les deux plateformes d'extrémité. En effet, lorsque le wagon est en position « wagon fermé », le tirant subit le couple généré par la structure pivotante. Ainsi, il peut arriver qu'il y ait des déformations au sein du tirant, qui affectent négativement la géométrie du châssis et la façon dont le tirant relie les deux plateformes d'extrémité.When assembling the wagon, it is generally difficult and complicated to shape the tie rod to obtain an isostatic connection with the two end platforms. In fact, when the wagon is in the “closed wagon” position, the tie rod is subjected to the torque generated by the pivoting structure. Thus, it can happen that there are deformations within the tie rod, which negatively affect the geometry of the frame and the way in which the tie rod connects the two end platforms.

Ces déformations sont encore plus importantes lorsque le tirant est sous la forme d'une partie médiane se prolongeant selon l'axe longitudinale du wagon et comportant une fourche à deux bras prévue à chacune des extrémités de la partie médiane.These deformations are even greater when the tie rod is in the form of a middle part extending along the longitudinal axis of the wagon and comprising a fork with two arms provided at each end of the middle part.

Dans le document EP 1292478 , le tirant est simplement fixé ou articulé à une plateforme d'extrémité par chacune des extrémités libres des bras des fourches. Pour corriger les défauts précités, il est donc nécessaire de tordre et forcer le tirant jusqu'à ce que ses déformations soient sans effet, et rien n'est prévu pour permettre notamment au tirant de reprendre le couple généré par la structure pivotante se traduisant par un effort de traction dans le tirant. Pour corriger ces défauts, dans le document EP 1292478 il est habituellement nécessaire d'imprimer de puissantes forces afin de déformer les bras du tirant, généralement de manière empirique, jusqu'à ce que le châssis du wagon soit plat et que les tensions subies par chacun des bras du tirant soient sensiblement les mêmes.In the document EP 1292478 , the tie rod is simply fixed or articulated to an end platform by each of the free ends of the arms of the forks. To correct the aforementioned defects, it is therefore necessary to twist and force the tie rod until its deformations have no effect, and nothing is provided to allow the tie rod in particular to take up the torque generated by the pivoting structure resulting in a tensile force in the tie rod. To correct these defects, in the document EP 1292478 it is usually necessary to apply strong forces in order to deform the tie rod arms, usually empirically, until the wagon frame is flat and the stresses to each of the tie rod arms are substantially the same.

En outre, dans le document EP 1292478 , aucun dispositif n'est prévu pour sécuriser la fixation du tirant deux plateformes d'extrémité, ni pour régler la distance entre chacun des bras des fourches du tirant et la plateforme d'extrémité sur laquelle ils sont fixés.In addition, in the document EP 1292478 , no device is provided to secure the fixing of the tie rod to two end platforms, nor to adjust the distance between each of the arms of the forks of the tie rod and the end platform on which they are attached.

Description de l'inventionDescription of the invention

L'objet de la présente invention vise par conséquent à pallier les inconvénients de l'art antérieur en proposant un nouveau dispositif de liaison prévu pour relier chaque plateforme d'extrémité aux bras du tirant dans un wagon ferroviaire du type tel que décrit précédemment.The object of the present invention therefore aims to overcome the drawbacks of the prior art by proposing a new connecting device designed to connect each end platform to the arms of the tie rod in a rail car of the type as described above.

Les objets assignés à l'invention sont atteints à l'aide d'un wagon ferroviaire pour le transport combiné rail/route et le chargement/déchargement d'une charge routière, ledit wagon comprenant :

  • deux plateformes d'extrémité équipées de bogies ;
  • un tirant reliant chaque plateforme d'extrémité et comprenant une partie médiane se prolongeant selon l'axe longitudinale du wagon ferroviaire, ainsi qu'une fourche à deux bras prévue à chacune des extrémités longitudinales de la partie médiane du tirant ;
  • une structure pivotante porteuse de la charge routière, assemblée de façon dissociable avec les deux plateformes d'extrémité et située au-dessus du tirant entre les deux plateformes d'extrémité ;
  • un dispositif de liaison prévu entre chaque extrémité libre distale des bras des fourches et l'extrémité en regard de chacune des plateformes d'extrémité ;
caractérisé en ce que l'extrémité libre distale des bras des fourches comprend une platine horizontale présentant un orifice traversant, chaque dispositif de liaison comprenant :
  • un anneau de traction comportant :
    • une première partie dirigée vers l'extrémité libre distale du bras de fourche, la première partie de l'anneau de traction comprenant deux platines horizontales et parallèles, présentant chacune un orifice traversant, et entre lesquelles est logée l'extrémité libre distale dudit bras des fourches,
    • une seconde partie solidarisée ou conformée d'une seule pièce avec la première partie, ladite seconde partie étant prolongée par une tige dont l'extrémité libre est filetée et dirigée vers la plateforme d'extrémité ;
  • un axe monté à travers l'orifice traversant de l'extrémité libre distale du bras des fourches et à travers les orifices traversants de l'anneau de traction afin d'assembler l'anneau de traction audit bras des fourches ;
  • une pièce réceptrice solidarisée ou conformée d'une seule pièce avec la plateforme d'extrémité, et présentant un orifice traversant à travers lequel est engagée la tige de l'anneau de traction ;
  • un écrou vissé sur l'extrémité filetée de la tige de l'anneau de traction débouchant de l'autre côté de l'orifice traversant de la pièce réceptrice ; et
  • un contre-écrou vissé sur la tige de l'anneau de traction entre la pièce réceptrice et la première partie de l'anneau de traction ;
l'écrou et le contre-écrou venant en appui contre la pièce réceptrice et enserrant celle-ci afin d'immobiliser la tige de l'anneau de traction dans la pièce réceptrice.The objects assigned to the invention are achieved using a railway wagon for combined rail / road transport and the loading / unloading of a road load, said wagon comprising:
  • two end platforms equipped with bogies;
  • a tie rod connecting each end platform and comprising a middle part extending along the longitudinal axis of the railway wagon, as well as a fork with two arms provided at each of the longitudinal ends of the middle part of the tie rod;
  • a pivoting structure carrying the road load, assembled in a dissociable manner with the two end platforms and located above the tie rod between the two end platforms;
  • a connecting device provided between each free distal end of the arms of the forks and the end facing each of the end platforms;
characterized in that the distal free end of the arms of the forks comprises a horizontal plate having a through orifice, each connecting device comprising:
  • a pull ring comprising:
    • a first part directed towards the distal free end of the fork arm, the first part of the traction ring comprising two horizontal and parallel plates, each having a through orifice, and between which is housed the distal free end of said arm of the forks,
    • a second part secured or shaped as a single piece with the first part, said second part being extended by a rod, the free end of which is threaded and directed towards the end platform;
  • a pin mounted through the through hole of the distal free end of the fork arm and through the through holes of the pull ring to assemble the pull ring to said fork leg;
  • a receiving part secured or shaped as a single piece with the end platform, and having a through orifice through which the rod of the traction ring is engaged;
  • a nut screwed onto the threaded end of the rod of the pulling ring opening out on the other side of the through hole of the receiving part; and
  • a lock nut screwed onto the rod of the pull ring between the receiving part and the first part of the pull ring;
the nut and the locknut coming to bear against the receiving part and enclosing the latter in order to immobilize the rod of the traction ring in the receiving part.

Par le vissage ou le dévissage de l'écrou sur l'extrémité filetée de la tige de l'anneau de traction au sein de chaque dispositif de liaison, il est avantageusement possible de régler la distance entre chacun des bras des fourches du tirant et la plateforme d'extrémité sur laquelle ils sont fixés. Ainsi, il est simple et facile conformer le tirant pour qu'il garantisse une géométrie plane du châssis et permette d'avoir une liaison isostatique avec les deux plateformes d'extrémité.By screwing or unscrewing the nut on the threaded end of the rod of the traction ring within each connecting device, it is advantageously possible to adjust the distance between each of the arms of the forks of the tie rod and the end platform on which they are fixed. Thus, it is simple and easy to shape the tie rod so that it guarantees a planar geometry of the frame and makes it possible to have an isostatic connection with the two end platforms.

Selon un exemple de mise en œuvre, l'écrou de chaque dispositif de liaison présente une gorge annulaire prévue dans la face de l'écrou située du côté de la pièce réceptrice. Cette gorge annulaire permet de diminuer la raideur de l'écrou est ainsi de diminuer les contraintes mécaniques dans les premiers filets en prises. Elle permet avantageusement d'augmenter considérablement la durée de vie de l'écrou qui retient les bras et dont le filetage subit tous les efforts de traction.According to an exemplary implementation, the nut of each connecting device has an annular groove provided in the face of the nut located on the side of the receiving part. This annular groove makes it possible to reduce the stiffness of the nut and thus to reduce the mechanical stresses in the first engaged threads. It advantageously makes it possible to considerably increase the service life of the nut which retains the arms and whose thread is subjected to all tensile forces.

Le contre-écrou permet avantageusement de limiter le mouvement du tirant par rapport aux plateformes d'extrémité en cas d'effort de compression, notamment pendant les phases de chargement/déchargement.The locknut advantageously makes it possible to limit the movement of the tie rod relative to the end platforms in the event of a compressive force, in particular during the loading / unloading phases.

Selon un exemple de mise en œuvre de l'invention chaque dispositif de liaison comprend en outre un dispositif d'immobilisation et de sécurisation de l'écrou qui empêche la rotation de l'écrou. Ainsi, une fois la géométrie souhaitée pour le tirant, cette géométrie peut être conservée en sécurisant chacun des écrous.According to an exemplary implementation of the invention, each connecting device further comprises a device for immobilizing and securing the nut which prevents rotation of the nut. Thus, once the desired geometry for the tie rod, this geometry can be preserved by securing each of the nuts.

Selon un autre exemple de mise en œuvre de l'invention la tige de l'anneau de traction comprend au moins une rainure longitudinale et le dispositif d'immobilisation et de sécurisation de l'écrou comprend une tôle d'arrêt d'écrou fixée sur l'écrou et présentant un orifice central comportant au moins un onglet d'immobilisation faisant saillie vers le centre dudit orifice central, ladite tôle d'arrêt d'écrou étant montée sur la tige de l'anneau de traction avec l'au moins un onglet d'immobilisation logé dans l'au moins une rainure longitudinale de ladite tige. Ce dispositif permet avantageusement d'empêcher la rotation de l'anneau de traction autour de son axe longitudinal dans lequel se situe la tige.According to another example of implementation of the invention, the rod of the traction ring comprises at least one longitudinal groove and the device for immobilizing and securing the nut comprises a nut stop plate fixed on the nut and having a central hole comprising at least one immobilizing tab projecting towards the center of said central hole, said nut stop plate being mounted on the rod of the pull ring with the at least one immobilization tab housed in at least one longitudinal groove of said rod. This device advantageously makes it possible to prevent the rotation of the traction ring around its longitudinal axis in which the rod is located.

Selon un exemple supplémentaire de mise en œuvre de l'invention la tôle d'arrêt d'écrou est fixée sur l'écrou par au moins une vis bloquée en rotation. Ainsi, le dispositif permettant d'empêcher la rotation de l'anneau de traction est lui-même sécurisé.According to a further example of implementation of the invention, the nut stop plate is fixed to the nut by at least one screw locked in rotation. Thus, the device for preventing rotation of the pull ring is itself secure.

Selon un exemple de mise en œuvre de l'invention chaque dispositif de liaison comprend en outre une pièce d'arrêt de contre-écrou présentant une extrémité de fixation fixée sur le contre-écrou et une extrémité de retenue opposée à l'extrémité de fixation et se prolongeant vers le tirant, cette extrémité de retenue pénétrant au moins partiellement entre les deux platines horizontales et parallèles de l'anneau de traction et empêchant avantageusement la rotation du contre-écrou par rapport à l'anneau de traction. Cette pièce d'arrêt permet également avantageusement de protéger le filetage de l'anneau de traction.According to an exemplary implementation of the invention, each connecting device further comprises a lock nut stop piece having a fixing end fixed to the lock nut and a retaining end opposite to the fixing end. and extending towards the tie rod, this retaining end penetrating at least partially between the two horizontal and parallel plates of the traction ring and advantageously preventing the rotation of the locknut relative to the traction ring. This stop piece also advantageously makes it possible to protect the thread of the traction ring.

Selon un autre exemple de mise en œuvre de l'invention chaque dispositif de liaison comprend en outre une bague d'appui montée sur la tige de l'anneau de traction entre la pièce réceptrice et l'écrou, cet écrou étant un écrou à portée sphérique dont la partie convexe à portée sphérique est dirigée vers la bague d'appui, la surface de contact de la bague d'appui étant concave et à portée sphérique. Ainsi, on obtient avantageusement une liaison à rotule de la tige de l'anneau de traction dans la pièce réceptrice de la plateforme d'extrémité.According to another example of implementation of the invention, each connecting device further comprises a support ring mounted on the rod of the traction ring between the receiving part and the nut, this nut being a nut within reach spherical, the convex portion of which with a spherical seat is directed towards the support ring, the contact surface of the support ring being concave and with a spherical seat. Thus, a ball joint connection of the rod of the traction ring is advantageously obtained in the receiving part of the end platform.

Selon un exemple supplémentaire de mise en œuvre de l'invention chaque dispositif de liaison comprend en outre une rondelle montée sur la tige de l'anneau de traction entre la pièce réceptrice et le contre-écrou. Cette rondelle permet avantageusement au contre-écrou d'être serré contre la pièce réceptrice de la plateforme d'extrémité.According to a further example of implementation of the invention, each connecting device further comprises a washer mounted on the rod of the traction ring between the receiving part and the locknut. This washer advantageously allows the locknut to be tightened against the receiving part of the end platform.

Selon un exemple de mise en œuvre de l'invention la rondelle est une rondelle ressort. Cette rondelle ressort est préférentiellement serrée par le contre-écrou, mais n'est pas mise à plat afin de conserver avantageusement la liaison rotule de l'écrou.According to an exemplary implementation of the invention, the washer is a spring washer. This spring washer is preferably tightened by the lock nut, but is not flattened in order to advantageously keep the ball joint of the nut.

Selon un autre exemple de mise en œuvre de l'invention la platine horizontale de l'extrémité libre distale des bras des fourches et/ou chaque platine horizontale de la première partie de l'anneau de traction est/sont de forme sensiblement ovale. Ainsi, il y a une grande surface de contact entre l'anneau de traction et le bras du tirant auquel il est relié, ce qui permet avantageusement de transmettre tout mouvement de rotation entre ces pièces selon l'axe longitudinal des fourches. Avantageusement, la conformation des platines horizontales permet également de former une articulation fiable et robuste entre chaque anneau de traction et le bras du tirant auquel il est relié.According to another example of implementation of the invention, the horizontal plate of the distal free end of the arms of the forks and / or each horizontal plate of the first part of the traction ring is / are of substantially oval shape. Thus, there is a large contact surface between the traction ring and the arm of the tie rod to which it is connected, which advantageously makes it possible to transmit any rotational movement between these parts along the longitudinal axis of the forks. Advantageously, the conformation of the horizontal plates also makes it possible to form a reliable and robust articulation between each traction ring and the arm of the tie rod to which it is connected.

Selon un exemple supplémentaire de mise en œuvre de l'invention la pièce réceptrice est sous la forme d'une anse de fixation prévue orthogonale à la surface de la plateforme d'extrémité sur laquelle elle est solidarisée ou conformée.According to a further example of implementation of the invention, the receiving part is in the form of a fixing loop provided orthogonal to the surface of the end platform on which it is secured or shaped.

Selon un exemple de mise en œuvre de l'invention la pièce réceptrice comporte un fourreau tubulaire logé dans son orifice traversant et prévu pour venir en contact sur la tige de l'anneau de traction. Ce fourreau permet notamment d'éviter toute usure entre la tige de l'anneau de traction et la pièce réceptrice de la plateforme d'extrémité dans laquelle il est reçu.According to an exemplary implementation of the invention, the receiving part comprises a tubular sheath housed in its through orifice and intended to come into contact with the rod of the traction ring. This sheath makes it possible in particular to avoid any wear between the rod of the traction ring and the receiving part of the end platform in which it is received.

Selon un autre exemple de mise en œuvre de l'invention chaque dispositif de liaison comprend en outre un dispositif de liaison supplémentaire retenant l'extrémité libre distale du bras de fourche avec la plateforme d'extrémité en cas de défaillance des moyens retenant la tige de l'anneau de traction avec ladite plateforme d'extrémité. Ce dispositif de liaison supplémentaire redondant fournit une sécurité supplémentaire et permettant avantageusement d'éviter qu'un anneau de traction ne se désolidarise de la plateforme d'extrémité à laquelle il est relié.According to another exemplary implementation of the invention, each connecting device further comprises an additional connecting device retaining the distal free end of the fork arm with the end platform in the event of failure of the means retaining the stem. the traction ring with said end platform. This additional redundant connection device provides additional security and advantageously makes it possible to prevent a pulling ring from becoming detached from the end platform to which it is connected.

Selon un exemple supplémentaire de mise en œuvre de l'invention chaque dispositif de liaison supplémentaire comprend :

  • une pièce de fixation solidarisée ou conformée d'une seule pièce avec la platine horizontale de ladite fourche et se prolongeant en direction de la plateforme d'extrémité selon l'axe longitudinal du bras de fourche, ladite pièce de fixation présentant un oblong traversant ;
  • un axe vertical de maintien, solidarisé à ladite plateforme d'extrémité et pénétrant à travers l'oblong traversant de la pièce de fixation.
According to an additional example of implementation of the invention, each additional connection device comprises:
  • a fastening piece secured or shaped as a single piece with the horizontal plate of said fork and extending in the direction of the end platform along the longitudinal axis of the fork arm, said fastening piece having a through oblong;
  • a vertical support axis, secured to said end platform and penetrating through the oblong crossing of the fixing part.

Par sa configuration, le dispositif de liaison supplémentaire est peu onéreux, robuste, efficace et simple à mettre en œuvre. Grâce à l'oblong, il permet une liberté de déplacement de chaque tirant par rapport à la plateforme, ce qui autorise avantageusement le réglage réalisé par l'écrou, tout en retenant l'anneau de traction à la plateforme d'extrémité en cas de défaillance notamment de l'écrou.By its configuration, the additional connection device is inexpensive, robust, efficient and simple to implement. Thanks to the oblong, it allows freedom of movement of each tie rod relative to the platform, which advantageously allows the adjustment made by the nut, while retaining the traction ring to the end platform in the event of failure in particular of the nut.

Selon un exemple de mise en œuvre de l'invention chaque dispositif de liaison comprend en outre un logement conformé dans chaque plateforme d'extrémité, dans lequel pénètre au moins partiellement la tige de l'anneau de traction et la pièce de fixation, l'axe vertical de maintien et l'orifice traversant de la pièce réceptrice étant logés dans ce logement. Ainsi, les pièces les plus sensibles et les plus fragiles de chaque dispositif de liaison sont protégées au sein d'un logement.According to an exemplary implementation of the invention, each connecting device further comprises a housing shaped in each end platform, into which at least partially penetrates the rod of the traction ring and the fixing part, the vertical support axis and the through-hole of the receiving part being housed in this housing. Thus, the most sensitive and fragile parts of each connection device are protected within a housing.

Selon un autre exemple de mise en œuvre de l'invention chaque dispositif de liaison comprend en outre un dispositif de sécurité supplémentaire prévu sur la plateforme d'extrémité et comportant un bandeau de sécurité situé sous l'anneau de traction, à proximité immédiate dudit anneau de traction. Ce dispositif de sécurité supplémentaire redondant fournit une sécurité supplémentaire et permet avantageusement de supporter l'anneau de traction par le bas afin d'éviter notamment qu'en cas de choc ou de poids important subi par l'anneau de traction celui-ci ne soit détérioré ou ne se désolidarise de la plateforme d'extrémité à laquelle il est relié.According to another example of implementation of the invention, each connection device further comprises an additional safety device provided on the end platform and comprising a safety strip located under the traction ring, in the immediate vicinity of said traction ring. This additional redundant safety device provides additional safety and advantageously makes it possible to support the traction ring from below in order to prevent in particular that in the event of an impact or significant weight undergone by the traction ring, the latter is not damaged or does not separate from the end platform to which it is connected.

Le dispositif de liaison de l'invention, en plus de permettre de régler la distance entre chacun des bras des fourches du tirant et la plateforme d'extrémité sur laquelle ils sont fixés, présente de nombreux dispositifs visant à sécuriser ses moyens constitutifs et à redonder sa fonction de liaison en cas de défaillance. Il offre ainsi une sécurité maximale pour la liaison du tirant aux plateformes d'extrémité.The connecting device of the invention, in addition to making it possible to adjust the distance between each of the arms of the forks of the tie-rod and the end platform on which they are fixed, has numerous devices aimed at securing its constituent means and at redundant its liaison function in the event of failure. It thus offers maximum security for connecting the tie rod to the end platforms.

Brève description des dessinsBrief description of the drawings

D'autres caractéristiques et avantages de la présente invention apparaîtront plus clairement à la lecture de la description qui va suivre, faite en référence aux dessins annexés, donnés à titre d'exemples non limitatifs, dans lesquels :

  • la figure 1 est une vue schématique d'ensemble d'un wagon ferroviaire pour le transport combiné rail/route d'une charge routière et comprenant deux plateformes d'extrémité équipées de bogies et supportant une structure pivotante porteuse de la charge routière, dans laquelle la structure pivotante est représentée à l'état dissocié ;
  • la figure 2 est une vue d'ensemble d'un tirant selon l'invention ;
  • la figure 3 est une vue de profil d'un wagon selon l'invention dans laquelle la structure pivotante n'est pas représentée ;
  • la figure 4 est une vue de dessus correspondant à la figure 3 ;
  • la figure 5 est une vue de détail de la partie encerclé sur la figure 4 ;
  • la figure 6 est une vue de dessous correspondant à la figure 5 ;
  • la figure 7 est une vue de détail de la partie encerclé sur la figure 5 ;
  • la figure 8 est une vue de détail de la partie encerclé sur la figure 6 ;
  • la figure 9 est une vue de détail en perspective de dessous illustrant la fixation de la tige de l'anneau de traction dans la pièce réceptrice de la plateforme d'extrémité, dans laquelle le bandeau de sécurité du dispositif de sécurité supplémentaire n'est pas représenté ;
  • la figure 10 est une vue similaire à celle de la figure 9 prise du côté de l'écrou, dans laquelle le bandeau de sécurité du dispositif de sécurité supplémentaire est pas représenté ;
  • la figure 11 est une vue en coupe horizontale correspondant sensiblement à la figure 9 ;
  • la figure 12 est une vue d'ensemble en perspective d'un anneau de traction selon l'invention ;
  • la figure 13 est une vue de détail en perspective de dessus d'une variante de l'invention comprenant un dispositif de liaison supplémentaire et dans laquelle un logement est conformé dans chaque plateforme d'extrémité ;
  • la figure 14 est une vue de détail en perspective de dessous d'un logement conformé dans une plateforme d'extrémité selon la variante de l'invention illustrée sur la figure 13 ;
  • la figure 15 est une vue de détail en perspective de dessus de la variante de l'invention illustrée sur la figure 13 dans laquelle la plateforme d'extrémité n'est pas représentée ;
  • la figure 16 est une vue de détail de dessous de la variante de l'invention illustrée sur la figure 13 ; et
  • la figure 17 est une vue en coupe horizontale correspondant à la figure 16.
Other characteristics and advantages of the present invention will emerge more clearly on reading the description which follows, given with reference to the appended drawings, given by way of non-limiting examples, in which:
  • the figure 1 is an overall schematic view of a railway wagon for the combined rail / road transport of a road load and comprising two end platforms equipped with bogies and supporting a pivoting structure carrying the road load, in which the pivoting structure is shown in the dissociated state;
  • the figure 2 is an overall view of a tie rod according to the invention;
  • the figure 3 is a side view of a wagon according to the invention in which the pivoting structure is not shown;
  • the figure 4 is a top view corresponding to the figure 3 ;
  • the figure 5 is a detail view of the circled part on the figure 4 ;
  • the figure 6 is a bottom view corresponding to the figure 5 ;
  • the figure 7 is a detail view of the circled part on the figure 5 ;
  • the figure 8 is a detail view of the circled part on the figure 6 ;
  • the figure 9 is a detail perspective view from below illustrating the attachment of the rod of the traction ring in the receiving part of the end platform, in which the safety strip of the additional safety device is not shown;
  • the figure 10 is a view similar to that of the figure 9 taken from the nut side, in which the safety strip of the additional safety device is not shown;
  • the figure 11 is a horizontal sectional view corresponding substantially to the figure 9 ;
  • the figure 12 is an overall perspective view of a traction ring according to the invention;
  • the figure 13 is a detail view in perspective from above of a variant of the invention comprising an additional connecting device and in which a housing is formed in each end platform;
  • the figure 14 is a detailed perspective view from below of a housing formed in an end platform according to the variant of the invention illustrated in FIG. figure 13 ;
  • the figure 15 is a detail view in perspective from above of the variant of the invention illustrated in FIG. figure 13 in which the end platform is not shown;
  • the figure 16 is a detail view from below of the variant of the invention illustrated on figure 13 ; and
  • the figure 17 is a horizontal sectional view corresponding to the figure 16 .

Mode(s) de réalisation de l'inventionMode (s) for carrying out the invention

Les éléments structurellement et fonctionnellement identiques présents sur plusieurs figures distinctes, sont affectés d'une même référence numérique ou alphanumérique.The structurally and functionally identical elements present in several distinct figures are assigned the same numerical or alphanumeric reference.

Le wagon ferroviaire (1) selon l'invention est prévu pour le transport combiné rail/route et le chargement/déchargement d'une charge routière, de préférence une semi-remorque. Un tel wagon ferroviaire (1) est représenté de manière simplifié sur la figure 1.The railway wagon (1) according to the invention is intended for combined rail / road transport and the loading / unloading of a road load, preferably a semi-trailer. Such a railway wagon (1) is shown in a simplified manner on the figure 1 .

Tel que représenté à titre d'exemple sur la figure 1, le wagon ferroviaire (1) selon l'invention comprend deux plateformes d'extrémité (2) reliées par un tirant (3) et équipées de bogies (4). C'est cet ensemble (2, 3) qui permet au wagon ferroviaire (1) selon l'invention de circuler sur des rails. Le tirant (3) est relié à chaque plateforme d'extrémité (2) par un dispositif de liaison (non représenté). Chacun de ces dispositifs de liaison est préférentiellement situé au niveau du tirant (3), en partie basse de chacune des plateformes d'extrémité (2).As shown by way of example on figure 1 , the railway wagon (1) according to the invention comprises two end platforms (2) connected by a tie rod (3) and equipped with bogies (4). It is this assembly (2, 3) which allows the railway wagon (1) according to the invention to run on rails. The tie rod (3) is connected to each end platform (2) by a connecting device (not shown). Each of these connecting devices is preferably located at the level of the tie rod (3), in the lower part of each of the end platforms (2).

Un tirant (3) selon l'invention est représenté à titre d'exemple sur la figure 2.A tie rod (3) according to the invention is shown by way of example on the figure 2 .

Cet ensemble (2, 3) formé par les plateformes d'extrémité (2) et le tirant (3) supportent une structure pivotante (5) porteuse de la charge routière. Le tirant (3) est équipé d'un pivot (6) qui permet à la structure pivotante (5) d'être animée d'un mouvement de pivotement aller et retour, dans un plan horizontal, vers et au-delà d'un quai entre une position de transport selon l'axe longitudinal du wagon ferroviaire (1) et une position de chargement/déchargement oblique ou perpendiculaire par rapport à la position de transport.This assembly (2, 3) formed by the end platforms (2) and the tie rod (3) support a pivoting structure (5) carrying the road load. The tie-rod (3) is equipped with a pivot (6) which allows the pivoting structure (5) to be animated with a pivoting movement back and forth, in a horizontal plane, towards and beyond a platform between a transport position along the longitudinal axis of the railway wagon (1) and a loading / unloading position oblique or perpendicular to the transport position.

Ainsi, en position de chargement/déchargement les extrémités de la structure pivotante (5) sont ouvertes et accessible depuis le quai pour permettre à l'utilisateur de charger ou décharger une charge routière sur ou en dehors de ladite structure pivotante (5).Thus, in the loading / unloading position, the ends of the pivoting structure (5) are open and accessible from the dock to allow the user to load or unload a road load on or outside said pivoting structure (5).

En position de transport, la structure pivotante (5) et les deux plateformes d'extrémité (2) sont mutuellement associées et alignées selon l'axe longitudinal du wagon ferroviaire (1) et les extrémités de la structure pivotante (5) sont fermées par les plateformes d'extrémité (2).In the transport position, the pivoting structure (5) and the two end platforms (2) are mutually associated and aligned along the longitudinal axis of the railway wagon (1) and the ends of the pivoting structure (5) are closed by the end platforms (2).

Lorsque la structure pivotante (5) est en position de transport, un mécanisme de levage extérieur au wagon permet de déplacer verticalement la structure pivotante (5) par rapport aux deux plateformes d'extrémités (2), de sorte que ladite structure pivotante (5) soit dissociée des deux plateformes d'extrémité (2) et puisse librement pivoter par rapport à celles-ci. La structure pivotante (5) peut ainsi adopter une position haute et une position basse.When the pivoting structure (5) is in the transport position, a lifting mechanism outside the wagon makes it possible to move the pivoting structure (5) vertically with respect to the two end platforms (2), so that said pivoting structure (5) ) is dissociated from the two end platforms (2) and can freely pivot relative to them. The pivoting structure (5) can thus adopt a high position and a low position.

Un mécanisme, généralement sous la forme d'un soufflet prévu au niveau du pivot (6) du tirant (3), permet de déboiter verticalement le tirant (3) de la structure pivotante (5) lors des phases d'ouverture. Généralement, la structure pivotante (5) comprend un plateau de chargement (7) horizontal bordé longitudinalement par deux parois latérales (8) de protection délimitées vers le haut par des longerons supérieurs (9). Ces longerons supérieurs (9) permettent habituellement rigidifier et supporter la structure pivotante (5).A mechanism, generally in the form of a bellows provided at the level of the pivot (6) of the tie rod (3), allows the tie rod (3) to be released vertically from the pivoting structure (5) during the opening phases. Generally, the pivoting structure (5) comprises a horizontal loading platform (7) bordered longitudinally by two protective side walls (8) delimited upwards by upper longitudinal members (9). These upper side members (9) usually make it possible to stiffen and support the pivoting structure (5).

La structure pivotante (5) est représentée uniquement sur les figures 1 et 6.The swivel structure (5) is only shown on the figures 1 and 6 .

Le wagon ferroviaire (1) selon l'invention comprend également deux systèmes de liaison (10) prévus pour assembler de façon dissociable la structure pivotante (5) et les deux plateformes d'extrémité (2) lorsque la structure pivotante (5) est en position de transport. Chaque système de liaison (10) est ainsi prévu entre chacune des plateformes d'extrémité (2) et la structure pivotante (5), au niveau des extrémités en regard de ces éléments (2, 5).The railway wagon (1) according to the invention also comprises two connecting systems (10) provided to dissociably assemble the pivoting structure (5) and the two end platforms (2) when the pivoting structure (5) is in position. transport position. Each connection system (10) is thus provided between each of the end platforms (2) and the pivoting structure (5), at the ends facing these elements (2, 5).

Tel que représenté sur les figures, chaque système de liaison (10) peut par exemple comprendre des crochets mâles (10a) prévus aux extrémités des longerons supérieurs (9) et des crochets récepteurs femelles (10b) ou des pièce réceptrices en saillies prévus aux extrémités internes des deux plateformes d'extrémité (2), les crochets mâles (10a) de la structure pivotante (5) étant prévus pour s'engager de façon dissociable avec les crochets récepteurs femelles (10b) ou les pièces réceptrices en saillie des plateformes d'extrémité (2).As shown in the figures, each connection system (10) can for example comprise male hooks (10a) provided at the ends of the upper side members (9) and female receiving hooks (10b) or projecting receiving parts provided at the inner ends of the two end platforms (2), the male hooks (10a) of the swivel structure (5) being provided for s 'engage in a dissociable manner with the female receiving hooks (10b) or the protruding receiving parts of the end platforms (2).

Tel que représenté sur les figures 1 à 4, le tirant (3) selon l'invention comprend une partie médiane (11) se prolongeant selon l'axe longitudinale du wagon ferroviaire (1), ainsi qu'une fourche (12) à deux bras (13) prévue à chacune des extrémités longitudinales de la partie médiane du tirant (3).As shown on figures 1 to 4 , the tie rod (3) according to the invention comprises a middle part (11) extending along the longitudinal axis of the railway wagon (1), as well as a fork (12) with two arms (13) provided at each end longitudinal sections of the middle part of the tie rod (3).

Comme cela est visible sur la figure 4, un dispositif de liaison (15) qui relie le tirant (3) à la plateforme d'extrémité (2) en regard est prévu au niveau de l'extrémité libre distale (14) du bras (13) de chacune des fourches (12). Ainsi, le wagon ferroviaire (1) selon l'invention comprend quatre dispositifs de liaison (15) reliant le tirant (3) aux deux plateformes d'extrémité (2).As can be seen on the figure 4 , a connecting device (15) which connects the tie rod (3) to the opposite end platform (2) is provided at the level of the distal free end (14) of the arm (13) of each of the forks (12) ). Thus, the railway wagon (1) according to the invention comprises four connecting devices (15) connecting the tie rod (3) to the two end platforms (2).

On notera que les systèmes de liaison (10) reprennent en partie supérieure les efforts horizontaux et longitudinaux entre le plateau de chargement (7) horizontal et les deux plateformes d'extrémité (2). En partie inférieure, les efforts verticaux d'appui de la structure pivotante (5) sur les deux plateformes d'extrémité (2) sont repris par le tirant (3). Le tirant (3) reprend seul les efforts de basculement des plateformes d'extrémité (2), c'est-à-dire qu'il empêche les plateformes d'extrémité (2) de pivoter autour d'un axe transversal à l'axe longitudinal du wagon ferroviaire (1).It will be noted that the connecting systems (10) take up in the upper part the horizontal and longitudinal forces between the horizontal loading platform (7) and the two end platforms (2). In the lower part, the vertical support forces of the pivoting structure (5) on the two end platforms (2) are taken up by the tie rod (3). The tie rod (3) alone takes up the tilting forces of the end platforms (2), that is to say it prevents the end platforms (2) from pivoting about an axis transverse to the longitudinal axis of the railway wagon (1).

Tel que représenté sur les figures 5 à 11, chaque dispositif de liaison (15) comprend un anneau de traction (16) présentant une première partie (17) dirigée vers l'extrémité libre distale (14) du bras (13) de fourche (12), la première partie (17) de l'anneau de traction (16) comprenant deux platines (18a, 18b) horizontales et parallèles, présentant chacune un orifice traversant (19), et entre lesquelles est logée l'extrémité libre distale (14) dudit bras (13) des fourches (12). Chaque anneau de traction (16) présente également une seconde partie (20) solidarisée ou conformée d'une seule pièce avec la première partie (17), ladite seconde partie (20) étant prolongée par une tige (21) dont l'extrémité libre (22) est filetée et est dirigée vers la plateforme d'extrémité (2).As shown on figures 5 to 11 , each connecting device (15) comprises a traction ring (16) having a first part (17) directed towards the distal free end (14) of the fork arm (13) (12), the first part (17) of the traction ring (16) comprising two horizontal and parallel plates (18a, 18b), each having a through orifice (19), and between which is housed the distal free end (14) of said arm (13) of the forks (12). Each traction ring (16) also has a second part (20) secured or shaped as a single piece with the first part (17), said second part (20) being extended by a rod (21) whose free end (22) is threaded and is directed towards the end platform (2).

Un anneau de traction (16) est représenté seul sur la figure 12.A pull ring (16) is shown alone on the figure 12 .

Chaque dispositif de liaison (15) comprend aussi un axe (23) logé verticalement à travers un orifice traversant (24) prévu de l'extrémité libre distale du bras (13) des fourches (12) et à travers les orifices traversants (19) de l'anneau de traction (16) afin d'assembler l'anneau de traction (16) audit bras (13) des fourches (12) de manière pivotante dans un plan horizontal.Each connecting device (15) also comprises an axis (23) housed vertically through a through hole (24) provided at the distal free end of the arm (13) of the forks (12) and through the through holes (19). of the pull ring (16) in order to assemble the pull ring (16) to said arm (13) of the forks (12) pivotally in a horizontal plane.

Chaque dispositif de liaison (15) comprend également une pièce réceptrice (25) solidarisée ou conformée d'une seule pièce avec la plateforme d'extrémité (2), et présentant un orifice traversant (26) à travers lequel est introduite la tige (21) de l'anneau de traction (16), de sorte que la partie filetée (22) de ladite tige (21) débouche de l'autre côté de l'orifice traversant (26).Each connecting device (15) also comprises a receiving part (25) secured or shaped as a single piece with the end platform (2), and having a through orifice (26) through which the rod (21) is introduced. ) of the traction ring (16), so that the threaded part (22) of said rod (21) opens out on the other side of the through hole (26).

Chaque dispositif de liaison (15) comprend aussi un écrou (27) vissé sur l'extrémité filetée (22) de la tige (21) de l'anneau de traction (16) et un contre-écrou (28) vissé sur la tige (21) de l'anneau de traction (16) entre la pièce réceptrice (25) et la première partie (17) de l'anneau de traction (16). L'écrou (27) et le contre-écrou (28) viennent en appui contre la pièce réceptrice (25) et enserrent celle-ci afin d'immobiliser la tige (21) de l'anneau de traction (16) dans la pièce réceptrice (25).Each connecting device (15) also comprises a nut (27) screwed onto the threaded end (22) of the rod (21) of the pulling ring (16) and a lock nut (28) screwed onto the rod (21) of the traction ring (16) between the receiving part (25) and the first part (17) of the traction ring (16). The nut (27) and the locknut (28) come to bear against the receiving part (25) and grip the latter in order to immobilize the rod (21) of the traction ring (16) in the part receiver (25).

On notera notamment que le filetage de la tige (21) et celui de l'écrou (27) est de préférence un filetage rond qui travaille mieux et fatigue moins pour un vissage non précontraint.It will be noted in particular that the thread of the rod (21) and that of the nut (27) is preferably a round thread which works better and tires less for non-prestressed screwing.

Selon un mode de réalisation préféré de l'invention, chaque dispositif de liaison (15) comprend en outre un dispositif d'immobilisation et de sécurisation (29) de l'écrou (27) qui empêche la rotation de l'écrou (27).According to a preferred embodiment of the invention, each connecting device (15) further comprises a device for immobilizing and securing (29) the nut (27) which prevents rotation of the nut (27). .

Ainsi, par exemple, la tige (21) de l'anneau de traction (16) peut comprend au moins une rainure longitudinale (30), préférentiellement deux, et le dispositif d'immobilisation et de sécurisation (29) de l'écrou (27) comprend une tôle d'arrêt d'écrou (31) fixée sur l'écrou (27) et présentant un orifice central (32) comportant au moins un onglet d'immobilisation (33) faisant saillie vers le centre dudit orifice central (32), ladite tôle d'arrêt d'écrou (31) étant montée sur la tige (21) de l'anneau de traction (16) avec l'au moins un onglet d'immobilisation (33) logé dans l'au moins une rainure longitudinale (30) de ladite tige (21), ce qui empêche la rotation de l'écrou (27).Thus, for example, the rod (21) of the traction ring (16) can comprise at least one longitudinal groove (30), preferably two, and the device for immobilizing and securing (29) of the nut ( 27) comprises a nut stopper plate (31) fixed to the nut (27) and having a central hole (32) having at least one immobilizing tab (33) projecting towards the center of said central hole ( 32), said nut stop plate (31) being mounted on the rod (21) of the pull ring (16) with the at least one immobilizing tab (33) housed in the at least a longitudinal groove (30) of said rod (21), which prevents rotation of the nut (27).

Tel que cela est visible sur la figure 10, la tôle d'arrêt d'écrou (31) est préférentiellement fixée sur l'écrou (27) par au moins une vis bloquée en rotation, et plus préférentiellement par au moins deux vis (34, 35) bloquées en rotation, c'est-à-dire que chacun de ces vis est équipée d'un dispositif qui empêche sa rotation.As can be seen on the figure 10 , the nut stop plate (31) is preferably fixed to the nut (27) by at least one screw blocked in rotation, and more preferably by at least two screws (34, 35) blocked in rotation, c ' that is, each of these screws is equipped with a device that prevents its rotation.

Dans le cas où il s'agit d'une vis à tête hexagonale (34), elle peut être bloquée par une tôle plaquette (36) présentant une butée (37) en appui contre un flanc de la tête de la vis à tête hexagonale (34).In the case where it is a hexagonal head screw (34), it can be blocked by a plate plate (36) having a stop (37) resting against a flank of the head of the hexagonal head screw (34).

Une vis peut également être bloquée en rotation par l'usage d'une rondelle d'arrêt à cames (38).A screw can also be blocked in rotation by the use of a cam lock washer (38).

Selon un mode de réalisation préféré de l'invention, la tôle d'arrêt d'écrou (31) est fixée sur l'écrou (27) par au moins deux vis, y compris une première vis à tête hexagonale (34) bloquée en rotation par une tôle plaquette (36) et une vis à tête cylindrique à empreinte creuse (35), par exemple de type Allen ou Torx, associée à une rondelle d'arrêt à cames (38).According to a preferred embodiment of the invention, the nut stop plate (31) is fixed to the nut (27) by at least two screws, including a first hexagonal head screw (34) locked in position. rotation by a plate plate (36) and a socket head cap screw (35), for example of the Allen or Torx type, associated with a cam lock washer (38).

Tel que cela est visible sur les figures 9 et 12, Chaque dispositif de liaison (15) comprend préférentiellement une pièce d'arrêt de contre-écrou (39) présentant une extrémité de fixation (40) fixée sur le contre-écrou (28) et une extrémité de retenue (41) opposée à l'extrémité de fixation (40) et se prolongeant vers le tirant (3). L'extrémité de retenue (41) pénètre au moins partiellement entre les deux platines (18a, 18b) horizontales et parallèles de l'anneau de traction (16) afin d'empêcher notamment la rotation du contre-écrou (28) par rapport à l'anneau de traction (16).As can be seen on the figures 9 and 12 , Each connecting device (15) preferably comprises a locknut stopper (39) having a fixing end (40) fixed to the locknut (28) and a retaining end (41) opposite to the fixing end (40) and extending towards the tie rod (3). The retaining end (41) penetrates at least partially between the two horizontal and parallel plates (18a, 18b) of the traction ring (16) in order in particular to prevent the rotation of the lock nut (28) with respect to the traction ring (16).

Chaque dispositif de liaison (15) comprend préférentiellement une bague d'appui (42) montée sur la tige (21) de l'anneau de traction (16) entre la pièce réceptrice (25) et l'écrou (27), cet écrou (27) étant alors préférentiellement un écrou (27) à portée sphérique dont la partie convexe à portée sphérique (43) est dirigée vers la bague d'appui (42), la surface de contact (44) de la bague d'appui (42) étant concave et à portée sphérique.Each connecting device (15) preferably comprises a support ring (42) mounted on the rod (21) of the traction ring (16) between the receiving part (25) and the nut (27), this nut (27) then preferably being a nut (27) with a spherical seat whose convex part with a spherical seat (43) is directed towards the support ring (42), the contact surface (44) of the support ring ( 42) being concave and spherical in contact.

Chaque dispositif de liaison (15) comprend préférentiellement une rondelle (45) montée sur la tige (21) de l'anneau de traction (16) entre la pièce réceptrice (25) et le contre-écrou (28). Il s'agit préférentiellement d'une rondelle ressort.Each connecting device (15) preferably comprises a washer (45) mounted on the rod (21) of the traction ring (16) between the receiving part (25) and the lock nut (28). It is preferably a spring washer.

L'extrémité libre distale du bras (13) des fourches (12) comprend préférentiellement une platine horizontale (46) dans laquelle est ménagé l'orifice traversant (24). Les platines horizontales (46) des bras (13) du tirant (3) et les platines horizontales (18a, 18b) de l'anneau de traction (16) sont préférentiellement de forme sensiblement ovale.The distal free end of the arm (13) of the forks (12) preferably comprises a horizontal plate (46) in which the through orifice (24) is formed. The horizontal plates (46) of the arms (13) of the tie rod (3) and the horizontal plates (18a, 18b) of the traction ring (16) are preferably of substantially oval shape.

Selon un mode de réalisation préféré de l'invention, la pièce réceptrice (25) est sous la forme d'une anse de fixation (47) prévue orthogonale à la surface de la plateforme d'extrémité (2) sur laquelle elle est solidarisée ou conformée.According to a preferred embodiment of the invention, the receiving part (25) is in the form of a fixing loop (47) provided orthogonal to the surface of the end platform (2) on which it is secured or conformed.

La pièce réceptrice (25) comporte préférentiellement un fourreau tubulaire (48) logé dans son orifice traversant (26) et prévu pour venir en contact sur la tige (21) de l'anneau de traction (16).The receiving part (25) preferably comprises a tubular sheath (48) housed in its through orifice (26) and designed to come into contact with the rod (21) of the traction ring (16).

Selon un mode de réalisation préféré de l'invention représenté sur les figures 13 à 17, chaque dispositif de liaison (15) comprend en outre un dispositif de liaison supplémentaire (49) retenant l'extrémité libre distale (14) du bras (13) de fourche (12) avec la plateforme d'extrémité (2) en cas de défaillance des moyens retenant la tige (21) de l'anneau de traction (16) avec ladite plateforme d'extrémité (2).According to a preferred embodiment of the invention shown in the figures 13 to 17 , each link device (15) further comprises a device additional connection (49) retaining the distal free end (14) of the fork arm (13) (12) with the end platform (2) in the event of failure of the means retaining the rod (21) of the ring traction (16) with said end platform (2).

Selon un exemple de réalisation, chaque dispositif de liaison supplémentaire (49) comprend une pièce de fixation (50) solidarisée ou conformée d'une seule pièce avec la platine horizontale (46) de ladite fourche (12) et se prolongeant en direction de la plateforme d'extrémité (2) selon l'axe longitudinal du bras (13) de fourche (12). La pièce de fixation (50) présente un oblong traversant (51) à travers lequel pénètre un axe vertical de maintien (52), solidarisé à ladite plateforme d'extrémité (2).According to an exemplary embodiment, each additional connecting device (49) comprises a fastening part (50) secured or shaped as a single piece with the horizontal plate (46) of said fork (12) and extending in the direction of the end platform (2) along the longitudinal axis of the fork arm (13) (12). The fixing part (50) has a through oblong (51) through which penetrates a vertical support axis (52), secured to said end platform (2).

Selon une variante de l'invention illustrée sur les figures 13 à 17, le wagon ferroviaire (1) comprend une solution de redondance sur la base d'un verrouillage entre le tirant (3) et chaque plateforme d'extrémité (2). Selon cette variante, chaque dispositif de liaison (15) comprend en outre un logement (53) conformé dans chaque plateforme d'extrémité (2), dans lequel pénètre au moins partiellement la tige (21) de l'anneau de traction (16) et la pièce de fixation (50). Selon cette variante, l'axe vertical de maintien (52) et l'orifice traversant (26) de la pièce réceptrice (25) sont situés dans ce logement (53).According to a variant of the invention illustrated on figures 13 to 17 , the railway wagon (1) includes a redundancy solution based on a locking between the tie rod (3) and each end platform (2). According to this variant, each connecting device (15) further comprises a housing (53) shaped in each end platform (2), into which at least partially penetrates the rod (21) of the traction ring (16). and the fixing piece (50). According to this variant, the vertical support axis (52) and the through orifice (26) of the receiving part (25) are located in this housing (53).

Enfin, chaque dispositif de liaison (15) comprend préférentiellement un dispositif de sécurité supplémentaire (54) prévu sur la plateforme d'extrémité (2) et comportant un bandeau de sécurité (55) situé sous l'anneau de traction (16), à proximité immédiate dudit anneau de traction (16).Finally, each connecting device (15) preferably comprises an additional safety device (54) provided on the end platform (2) and comprising a safety strip (55) located under the traction ring (16), to immediate proximity to said pull ring (16).

Il est évident que la présente description ne se limite pas aux exemples explicitement décrits, mais comprend également d'autres modes de réalisation et/ou de mise en œuvre. Ainsi, une caractéristique technique décrite peut être remplacée par une caractéristique technique équivalente sans sortir du cadre de la présente invention tel que défini par les revendications annexées.It is obvious that the present description is not limited to the examples explicitly described, but also includes other embodiments and / or implementation. Thus, a described technical characteristic can be replaced by an equivalent technical characteristic without departing from the scope of the present invention as defined by the appended claims.

Claims (16)

  1. A rail wagon (1) for rail-and-road combined transport and for loading and unloading a road load, said wagon comprising:
    - two end platforms (2) equipped with bogies (4);
    - a tie (3) connecting each end platform (2) and comprising a middle part (11) extending along the longitudinal axis of the rail wagon (1), and a fork (12) with two arms (13) provided at each of the longitudinal ends of the middle part (11) of the tie (3),
    - a pivotally mounted structure (5) that bears the road load, dissociably assembled with the two end platforms (2) and situated above the tie (3) between the two end platforms (2);
    - a connecting device (15) provided between each distal free end (14) of the arms (13) of the forks (12) and the facing end of each of the end platforms (2);
    characterised in that the distal free end (14) of the arms (13) of the forks (12) comprises a horizontal plate (46) having a through-hole, each connecting device (15) comprising:
    - a pull ring (16) comprising:
    . a first part (17) directed towards the distal free end (14) of the arm (13) of the fork (12), the first part (17) of the pull ring (16) comprising two horizontal and parallel plates (18a, 18b), each having a through-hole, and between which is housed the distal free end of said arm (13) of the forks (12),
    . a second part (20) secured or shaped in one piece with the first part (17), said second part (20) being extended by a rod (21) whose free end is threaded and directed towards the end platform (2);
    - a pin (23) mounted through the through-hole of the distal free end of the arm (13) of the forks (12) and through the through-holes of the pull ring (16) to assemble the pull ring (16) to said arm (13) of the forks (12);
    - a receiving piece (25) secured or shaped in one piece with the end platform (2), and having a through-hole through which the rod (21) of the pull ring (16) is engaged;
    - a nut (27) screwed onto the threaded end (22) of the rod (21) of the pull ring (16) emerging on the other side of the through-hole of the receiving piece (25); and
    - a locknut (28) screwed onto the rod (21) of the pull ring (16) between the receiving piece (25) and the first part (17) of the pull ring (16);
    the nut (27) and the locknut (28) bearing against the receiving piece (25) and sandwiching the latter in order to immobilise the rod (21) of the pull ring (16) in the receiving piece (25).
  2. The rail wagon (1) according to claim 1, characterised in that the nut (27) of each connecting device (15) has an annular groove (56) provided in the face of the nut (27) situated on the side of the receiving piece (25).
  3. The rail wagon (1) according to claim 1 or claim 2, characterised in that each connecting device (15) further comprises a device (29) for immobilising and securing the nut (27) which prevents rotation of the nut (27).
  4. The rail wagon (1) according to the preceding claim, characterised in that the rod (21) of the pull ring (16) comprises at least one longitudinal groove (30) and in that the device (29) for immobilising and securing the nut (27) comprises a nut stop plate (31) fixed to the nut (27) and having a central hole (32) comprising at least one immobilising tab (33) projecting towards the centre of the said central hole, the said nut stop plate (31) being mounted on the rod (21) of the pull ring (16) with the at least one immobilising tab (33) housed in the at least one longitudinal groove (30) of the said rod (21).
  5. The rail wagon (1) according to the preceding claim, characterised in that the nut stop plate (31) is fixed to the nut (27) by at least one screw prevented from rotating.
  6. The rail wagon (1) according to any one of the preceding claims, characterised in that each connecting device (15) further comprises a locknut stop piece (39) having a fixing end (40) fixed to the locknut (28) and a retaining end (41) opposite to the fixing end (40) and extending towards the tie (3), this retaining end (41) penetrating at least partially between the two horizontal and parallel plates (18a, 18b) of the pull ring (16) and preventing rotation of the locknut (28) relative to the pull ring (16).
  7. The rail wagon (1) according to any one of the preceding claims, characterised in that each connecting device (15) further comprises a bearing ring (42) mounted on the rod (21) of the pull ring (16) between the receiving piece (25) and the nut (27), this nut (27) having a spherical bearing surface with a convex spherical bearing part (43) which is directed towards the bearing ring (42), the contact surface (44) of the bearing ring (42) being concave and with a spherical bearing surface.
  8. The rail wagon (1) according to any one of the preceding claims, characterised in that each connecting device (15) further comprises a washer (45) mounted on the rod (21) of the pull ring (16) between the receiving piece (25) and the locknut (28).
  9. The rail wagon (1) according to the preceding claim, characterised in that the washer (45) is a spring washer (45).
  10. The rail wagon (1) according to any one of the preceding claims, characterised in that the horizontal plate of the distal free end of the arms (13) of the forks (12) and/or in that each horizontal plate of the first part (17) of the pull ring (16) is/are substantially oval in shape.
  11. The rail wagon (1) according to any one of the preceding claims, characterised in that the receiving piece (25) is in the form of a fastening loop (47) provided orthogonal to the surface of the end platform (2) to which it is secured or shaped.
  12. The rail wagon according to any one of the preceding claims, characterised in that the receiving piece (25) includes a tubular sheath (48) housed in its through-hole and arranged to come into contact with the rod (21) of the pull ring (16).
  13. The rail wagon (1) according to any one of the preceding claims, characterised in that each connecting device (15) further comprises an additional connecting device (49) retaining the distal free end of the arm (13) of the fork (12) with the end platform (2) in the event of failure of the means retaining the rod (21) of the pull ring (16) with said end platform (2).
  14. The rail wagon (1) according to the preceding claim, characterised in that each additional connecting device (49) comprises:
    - a fixing piece (50) secured or shaped in one piece with the horizontal plate of said fork (12) and extending in the direction of the end platform (2) along the longitudinal axis of the arm (13) of the fork (12), said fixing piece (50) having a slotted hole (51);
    - a vertical holding pin (52), secured to said end platform (2) and penetrating through the slotted hole (51) of the fixing piece (50).
  15. The rail wagon (1) according to any one of the preceding claims, characterised in that each connecting device (15) further comprises an housing (53) shaped in each end platform (2), into which the rod (21) of the pull ring (16) and the fixing piece (50) penetrate at least partially, the vertical holding pin (52) and the through-hole of the receiving piece (25) being housed in this housing.
  16. The rail wagon (1) according to any one of the preceding claims, characterised in that each connecting device (15) further comprises an additional safety device (54) provided on the end platform (2) and comprising a safety strip (55) located under the pull ring (16), in the immediate vicinity of said pull ring (16).
EP19205800.6A 2018-12-27 2019-10-29 Connection device between the brace and the end platforms of a combined road/rail transport carriage Active EP3677484B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL19205800T PL3677484T3 (en) 2018-12-27 2019-10-29 Connection device between the brace and the end platforms of a combined road/rail transport carriage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1874252A FR3091250B1 (en) 2018-12-27 2018-12-27 CONNECTION DEVICE BETWEEN THE TENSION ROD AND THE END PLATFORMS OF A COMBINED RAIL / ROAD TRANSPORT WAGON

Publications (2)

Publication Number Publication Date
EP3677484A1 EP3677484A1 (en) 2020-07-08
EP3677484B1 true EP3677484B1 (en) 2021-06-09

Family

ID=66867327

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19205800.6A Active EP3677484B1 (en) 2018-12-27 2019-10-29 Connection device between the brace and the end platforms of a combined road/rail transport carriage

Country Status (6)

Country Link
EP (1) EP3677484B1 (en)
CN (2) CN210454803U (en)
ES (1) ES2875000T3 (en)
FR (1) FR3091250B1 (en)
HU (1) HUE055030T2 (en)
PL (1) PL3677484T3 (en)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3584584A (en) * 1968-05-08 1971-06-15 Gen Am Transport Combination railway and passenger automobile transportation system and parts thereof
FR2810609B1 (en) 2000-06-21 2002-12-27 Lohr Ind WAGON FOR COMBINED RAIL / ROAD TRANSPORT COMPRISING TWO END PLATFORMS SUPPORTING A PIVOTING RAIL STRUCTURE CARRYING THE ROAD LOAD
DE102004040245A1 (en) * 2004-08-13 2006-02-23 Frenzel-Bau Gmbh & Co. Kg Cargo handling and transport system

Also Published As

Publication number Publication date
HUE055030T2 (en) 2021-10-28
FR3091250A1 (en) 2020-07-03
ES2875000T3 (en) 2021-11-08
CN210454803U (en) 2020-05-05
CN111376928A (en) 2020-07-07
PL3677484T3 (en) 2021-10-11
EP3677484A1 (en) 2020-07-08
FR3091250B1 (en) 2020-12-18

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