EP3677484A1 - 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
EP3677484A1
EP3677484A1 EP19205800.6A EP19205800A EP3677484A1 EP 3677484 A1 EP3677484 A1 EP 3677484A1 EP 19205800 A EP19205800 A EP 19205800A EP 3677484 A1 EP3677484 A1 EP 3677484A1
Authority
EP
European Patent Office
Prior art keywords
nut
rod
traction ring
railway wagon
ring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19205800.6A
Other languages
German (de)
French (fr)
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EP3677484B1 (en
Inventor
Jacques Ober
Jean-Luc Andre
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lohr Industrie SA
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Lohr Industrie SA
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Filing date
Publication date
Application filed by Lohr Industrie SA filed Critical Lohr Industrie SA
Priority to PL19205800T priority Critical patent/PL3677484T3/en
Publication of EP3677484A1 publication Critical patent/EP3677484A1/en
Application granted granted Critical
Publication of EP3677484B1 publication Critical patent/EP3677484B1/en
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Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • 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, connected together by a tie rod, and supporting a pivoting structure carrying the road load.
  • the invention relates more particularly to a connecting device provided for connecting 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, connected together by a tie rod, and supporting a pivoting structure carrying the road load.
  • the pivoting structure can pivot horizontally relative 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 pivoting 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 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 has no other main purpose than to mechanically connect the two end platforms together so as 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 compared to the railway gauge. Indeed, the tie is only subject to its own weight and possible forces of separation and approximation 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 the "open wagon” position.
  • the pivoting structure is in the high position and oblique or perpendicular to the two end platforms.
  • the tie when the wagon is in the transport position, or in the "closed wagon” position, the tie 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 the 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 pivot center of the pivoting structure.
  • the tie rod also allows the mounting and circulation of the pneumatic lines 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 of the ends of the middle part.
  • the tie rod is simply fixed or articulated to an end platform by each of the free ends of the fork arms. To correct the aforementioned defects, it is therefore necessary to twist and force the tie rod until its deformations are ineffective, and nothing is provided in particular to allow the tie rod to take up the torque generated by the pivoting structure resulting in a tensile force in the tie rod. To correct these faults, in the document EP 1292478 it is usually necessary to impress strong forces in order to deform the tie rod arms, generally empirically, until the wagon chassis is flat and the stresses experienced by each of the tie rod arms are substantially the same.
  • no device is provided to secure the attachment of the tie rod to two end platforms, or 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 object of the present invention therefore aims to overcome the drawbacks of the prior art by proposing a new connecting device intended to connect each end platform to the arms of the tie rod in a railway wagon of the type as described above.
  • each connecting device By screwing or unscrewing the nut on the threaded end of the rod of the pulling ring within each connecting device, it is advantageously possible to adjust the distance between each of the forks of the tie rod and the end platform on which they are fixed.
  • it is simple and easy to conform the tie rod so that it guarantees a planar geometry of the chassis and allows 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 threads engaged. It advantageously makes it possible to considerably increase the life of the nut which retains the arms and whose thread undergoes all the tensile forces.
  • the lock nut advantageously makes it possible to limit the movement of the tie rod relative to the end platforms in the event of a compression force, in particular during the loading / unloading phases.
  • each connecting device further comprises a device for immobilizing and securing the nut which prevents the 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 to 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 traction ring with at least one immobilization tab housed in the 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 the rotation of the traction ring is itself secure.
  • each connecting device further comprises a lock nut stopper having a fixing end fixed to the locknut and a retaining end opposite 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 lock nut 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 pulling ring between the receiving part and the nut, this nut being a bearing nut spherical, the convex part of which has a spherical bearing is directed towards the support ring, the contact surface of the support ring being concave and of spherical bearing.
  • each connecting device also comprises a washer mounted on the rod of the traction ring between the receiving part and the lock nut. This washer advantageously allows the lock nut 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 retain the ball joint of the nut.
  • the horizontal plate of the free distal end of the fork arms 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 on the rod of the traction ring.
  • This sheath in particular makes it possible 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 also 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 rod. the traction ring with said end platform.
  • This redundant additional connecting device provides additional security and advantageously making it possible to prevent a traction 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 piece, the vertical retaining pin and the through hole of the receiving part being housed in this housing.
  • each connection device also 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 redundant additional safety device provides additional safety and advantageously makes it possible to support the traction ring from below in order to avoid in particular that in the event of an impact or of significant weight undergone by the traction ring it is deteriorated or becomes detached from the end platform to which it is connected.
  • connection 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 redundant its linkage function in the event of failure. It thus offers maximum security for the connection of the tie rod to the end platforms.
  • the rail car (1) according to the invention is intended for combined rail / road transport and loading / unloading of a road load, preferably a semi-trailer.
  • a railway wagon (1) is shown in simplified form 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 rods (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 back and forth pivoting movement, 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 quay 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 rail car (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 external to the wagon makes it possible to vertically move the pivoting structure (5) relative 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 pivot (6) of the tie rod (3), makes it possible to vertically disengage the tie rod (3) from the pivoting structure (5) during the opening phases.
  • the pivoting structure (5) comprises a horizontal loading plate (7) bordered longitudinally by two side walls (8) of protection delimited upwards by upper longitudinal members (9). These upper beams (9) usually stiffen and support the pivoting structure (5).
  • the pivoting structure (5) is shown only on the figures 1 and 6 .
  • the railway wagon (1) also comprises two connection systems (10) provided for dissociably assembling the pivoting structure (5) and the two end platforms (2) when the pivoting structure (5) is in transport position.
  • Each connection system (10) is thus provided between each of the end platforms (2) and the pivoting structure (5), at the ends opposite 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 internal ends of the two end platforms (2), the male hooks (10a) of the pivoting structure (5) being provided for s '' to be dissociated with the female receiver hooks (10b) or the receptive parts projecting from 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 of the ends longitudinal 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).
  • connection 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 efforts of the end platforms (2), that is to say that it prevents the end platforms (2) from pivoting about an axis transverse to the longitudinal axis of the railway wagon (1).
  • each connection 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 pulling ring (16) comprising two horizontal and parallel plates (18a, 18b), each having a through hole (19), and between which is housed the distal free end (14) of said fork arm (13) (12).
  • Each traction ring (16) also has a second part (20) secured or formed in one 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 traction 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 from the distal free end of the arm (13) of the forks (12) and through the through holes (19) of the traction ring (16) in order to assemble the traction ring (16) to said arm (13) of the forks (12) pivotally in a horizontal plane.
  • connection device (15) also comprises a receiving part (25) integral or shaped in one piece with the end platform (2), and having a through hole (26) through which the rod (21) is introduced. ) of the pulling ring (16), so that the threaded part (22) of said rod (21) opens 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 pulling ring (16) between the receiving part (25) and the first part (17) of the pulling ring (16).
  • the nut (27) and the lock nut (28) bear against the receiving part (25) and enclose 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 the 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) the nut ( 27) comprises a nut stop plate (31) fixed to the nut (27) and having a central hole (32) comprising at least one immobilization tab (33) projecting towards the center of said central hole ( 32), said nut stop plate (31) being mounted on the rod (21) of the traction ring (16) with the at least one immobilization 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 locked in rotation, and more preferably by at least two screws (34, 35) locked in rotation, it that is to say that each of these screws is equipped with a device which prevents its rotation.
  • a screw can also be locked 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 rotation by a plate sheet (36) and a cylindrical head screw with hollow cavity (35), for example of Allen or Torx type, associated with a cam lock washer (38).
  • Each connecting device (15) preferably comprises a lock nut stopper (39) having a fixing end (40) fixed on the lock nut (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 to prevent in particular the rotation of the lock nut (28) relative to the pulling ring (16).
  • Each connection 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 bearing, the convex part with a spherical bearing (43) directed towards the support ring (42), the contact surface (44) of the support ring ( 42) being concave and spherical in scope.
  • 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 consistent.
  • the receiving part (25) preferably comprises a tubular sheath (48) housed in its through orifice (26) and intended to come into contact on the rod (21) of the traction ring (16).
  • each connecting 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 of traction (16) with said end platform (2).
  • each additional connecting device (49) comprises a fixing part (50) secured or formed in one 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 piece (50) has a through oblong (51) through which penetrates a vertical retaining axis (52), secured to said end platform (2).
  • the railway wagon (1) comprises a redundancy solution on the basis of an interlock 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 part (50).
  • the vertical retaining 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), close proximity to said pulling ring (16).

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

Abstract

Le dispositif de liaison (15) est prévu pour relier chacun des bras (13) d'un tirant (3) à une plateforme d'extrémité (2) d'un wagon (1) de transport combiné rail/route. Il comprend un anneau de traction (16) assemblé à rotation sur l'extrémité libre de chacun des bras du tirant entre deux platines (18a, 18b) horizontales et parallèles. Cet anneau de traction est prolongé par une tige (21) qui est introduite dans l'orifice traversant (26) d'une pièce réceptrice (25) de la plateforme d'extrémité (2). L'anneau de traction (16) est sécurisé par un écrou (27) vissé sur l'extrémité filetée (22) de la tige (21) et par un contre-écrou (28) vissé sur la tige (21), l'écrou (27) et le contre-écrou (28) enserrant la pièce réceptrice (25) de chaque côté de celle-ci afin d'immobiliser la tige (21) de l'anneau de traction (16) dans la pièce réceptrice (25).The connecting device (15) is provided for connecting each of the arms (13) of a tie rod (3) to an end platform (2) of a wagon (1) of combined rail / road transport. It comprises a pulling ring (16) assembled in rotation on the free end of each of the arms of the tie rod between two horizontal and parallel plates (18a, 18b). This traction ring is extended by a rod (21) which is introduced into the through hole (26) of a receiving part (25) of the end platform (2). The traction ring (16) is secured by a nut (27) screwed onto the threaded end (22) of the rod (21) and by a lock nut (28) screwed onto the rod (21), the nut (27) and the lock nut (28) enclosing the receiving part (25) on each side thereof in order to immobilize the rod (21) of the traction ring (16) in the receiving part (25 ).

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, connected together 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 provided for connecting 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, connected together 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 relative 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 pivoting 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 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 has no other main purpose than to mechanically connect the two end platforms together so as 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 compared to the railway gauge. Indeed, the tie is only subject to its own weight and possible forces of separation and approximation 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 the "open wagon" position. », The pivoting structure is in the 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 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 the 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 pivot 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 lines 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 conform 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 undergoes 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 chassis 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 of the ends 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 fork arms. To correct the aforementioned defects, it is therefore necessary to twist and force the tie rod until its deformations are ineffective, and nothing is provided in particular to allow the tie rod to take up the torque generated by the pivoting structure resulting in a tensile force in the tie rod. To correct these faults, in the document EP 1292478 it is usually necessary to impress strong forces in order to deform the tie rod arms, generally empirically, until the wagon chassis is flat and the stresses experienced by 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.Furthermore, in the document EP 1292478 , no device is provided to secure the attachment of the tie rod to two end platforms, or 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.

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 intended to connect each end platform to the arms of the tie rod in a railway wagon 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 loading / unloading of a road load, said wagon comprising:
  • two end platforms fitted 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 two-arm fork 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 separable manner with the two end platforms and situated above the tie rod between the two end platforms;
  • a connecting device provided between each distal free end of the arms of the forks and the opposite end of each of the end platforms;
characterized in that the distal free end of the fork arms comprises a horizontal plate having a through hole, each connection device comprising:
  • a traction 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 hole, and between which is housed the distal free end of said arm forks,
    • a second part secured or shaped in one piece with the first part, said second part being extended by a rod whose free end is threaded and directed towards the end platform;
  • a pin mounted through the through hole of the distal free end of the fork leg and through the through holes of the draw ring to assemble the pull ring to said fork arm;
  • a receiving part secured or shaped in one piece with the end platform, and having a through hole through which is engaged the rod of the traction ring;
  • a nut screwed onto the threaded end of the rod of the pulling ring opening on the other side of the through hole of the receiving part; and
  • a lock nut screwed onto the rod of the traction ring between the receiving part and the first part of the traction ring;
the nut and the lock nut 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 pulling ring within each connecting device, it is advantageously possible to adjust the distance between each of the forks of the tie rod and the end platform on which they are fixed. Thus, it is simple and easy to conform the tie rod so that it guarantees a planar geometry of the chassis and allows 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 threads engaged. It advantageously makes it possible to considerably increase the life of the nut which retains the arms and whose thread undergoes all the 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 lock nut advantageously makes it possible to limit the movement of the tie rod relative to the end platforms in the event of a compression 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 the rotation of the nut. Thus, once the geometry desired 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 to 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 traction ring with at least one immobilization tab housed in the 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 the rotation of the traction 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 stopper having a fixing end fixed to the locknut and a retaining end opposite 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 lock nut 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 pulling ring between the receiving part and the nut, this nut being a bearing nut spherical, the convex part of which has a spherical bearing is directed towards the support ring, the contact surface of the support ring being concave and of spherical bearing. Thus, there is advantageously obtained a ball joint of the rod of the traction ring 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 also comprises a washer mounted on the rod of the traction ring between the receiving part and the lock nut. This washer advantageously allows the lock nut 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 retain 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 free distal end of the fork arms 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 on the rod of the traction ring. This sheath in particular makes it possible 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 example of implementation of the invention, each connecting device also 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 rod. the traction ring with said end platform. This redundant additional connecting device provides additional security and advantageously making it possible to prevent a traction 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 fixing piece secured or formed in one 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 fixing piece having a through oblong;
  • a vertical retaining axis, secured to said end platform and penetrating through the oblong passing through the fixing piece.

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 piece, the vertical retaining pin and the through hole of the receiving part being housed in this housing. Thus, the most sensitive and fragile parts of each connecting 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 also 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 redundant additional safety device provides additional safety and advantageously makes it possible to support the traction ring from below in order to avoid in particular that in the event of an impact or of significant weight undergone by the traction ring it is deteriorated or becomes detached 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 connection 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 redundant its linkage function in the event of failure. It thus offers maximum security for the connection of 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 appear more clearly on reading the description which follows, given with reference to the appended drawings, given by way of nonlimiting examples, in which:
  • the figure 1 is a schematic overview of a railway wagon for 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 represented in the dissociated state;
  • the figure 2 is an overview 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 part circled 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 part circled on the figure 5 ;
  • the figure 8 is a detail view of the part circled on the figure 6 ;
  • the figure 9 is a detail view in perspective from below illustrating the fixing of the rod of the pulling 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 side of the nut, wherein the security strip of the additional security device is not shown;
  • the figure 11 is a horizontal section 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 detailed perspective view 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 detail view in perspective from below of a housing shaped in an end platform according to the variant of the invention illustrated on the figure 13 ;
  • the figure 15 is a detail view in perspective from above of the variant of the invention illustrated on the 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 the figure 13 ; and
  • the figure 17 is a horizontal sectional view corresponding to the figure 16 .

Mode(s) de réalisation de l'inventionMode (s) of 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 rail car (1) according to the invention is intended for combined rail / road transport and loading / unloading of a road load, preferably a semi-trailer. Such a railway wagon (1) is shown in simplified form 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 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).

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 rods (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 back and forth pivoting movement, 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 quay 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 rail car (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 external to the wagon makes it possible to vertically move the pivoting structure (5) relative 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 pivot (6) of the tie rod (3), makes it possible to vertically disengage the tie rod (3) from the pivoting structure (5) during the opening phases. Generally, the pivoting structure (5) comprises a horizontal loading plate (7) bordered longitudinally by two side walls (8) of protection delimited upwards by upper longitudinal members (9). These upper beams (9) usually stiffen and support the pivoting structure (5).

La structure pivotante (5) est représentée uniquement sur les figures 1 et 6.The pivoting structure (5) is shown only 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 connection systems (10) provided for dissociably assembling the pivoting structure (5) and the two end platforms (2) when the pivoting structure (5) is in transport position. Each connection system (10) is thus provided between each of the end platforms (2) and the pivoting structure (5), at the ends opposite 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 internal ends of the two end platforms (2), the male hooks (10a) of the pivoting structure (5) being provided for s '' to be dissociated with the female receiver hooks (10b) or the receptive parts projecting from 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 in the 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 of the ends longitudinal 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 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 connection 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 efforts of the end platforms (2), that is to say that 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 in the Figures 5 to 11 , each connection 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 pulling ring (16) comprising two horizontal and parallel plates (18a, 18b), each having a through hole (19), and between which is housed the distal free end (14) of said fork arm (13) (12). Each traction ring (16) also has a second part (20) secured or formed in one 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 traction 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 from the distal free end of the arm (13) of the forks (12) and through the through holes (19) of the traction ring (16) in order to assemble the traction 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 connection device (15) also comprises a receiving part (25) integral or shaped in one piece with the end platform (2), and having a through hole (26) through which the rod (21) is introduced. ) of the pulling ring (16), so that the threaded part (22) of said rod (21) opens 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 pulling ring (16) between the receiving part (25) and the first part (17) of the pulling ring (16). The nut (27) and the lock nut (28) bear against the receiving part (25) and enclose 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 the 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) the nut ( 27) comprises a nut stop plate (31) fixed to the nut (27) and having a central hole (32) comprising at least one immobilization tab (33) projecting towards the center of said central hole ( 32), said nut stop plate (31) being mounted on the rod (21) of the traction ring (16) with the at least one immobilization 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 seen on the figure 10 , the nut stop plate (31) is preferably fixed to the nut (27) by at least one screw locked in rotation, and more preferably by at least two screws (34, 35) locked in rotation, it that is to say that each of these screws is equipped with a device which 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) bearing against a side 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 locked 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 rotation by a plate sheet (36) and a cylindrical head screw with hollow cavity (35), for example of 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 seen on figures 9 and 12 , Each connecting device (15) preferably comprises a lock nut stopper (39) having a fixing end (40) fixed on the lock nut (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 to prevent in particular the rotation of the lock nut (28) relative to the pulling 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 connection 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 bearing, the convex part with a spherical bearing (43) directed towards the support ring (42), the contact surface (44) of the support ring ( 42) being concave and spherical in scope.

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 consistent.

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 intended to come into contact on 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 connecting 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 of 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 fixing part (50) secured or formed in one 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 piece (50) has a through oblong (51) through which penetrates a vertical retaining 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 the Figures 13 to 17 , the railway wagon (1) comprises a redundancy solution on the basis of an interlock 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 part (50). According to this variant, the vertical retaining 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), close proximity to said pulling 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 et une étape décrite de mise en œuvre du procédé peut être remplacée par une étape équivalente sans sortir du cadre de l'invention tel que défini par les revendications.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 technical characteristic described can be replaced by an equivalent technical characteristic without departing from the scope of the present invention as defined by the appended claims and a described step of implementing the method can be replaced by an equivalent step without departing from the scope of the invention as defined by the claims.

Claims (16)

Wagon ferroviaire (1) pour le transport combiné rail/route et le chargement/déchargement d'une charge routière, ledit wagon comprenant : • deux plateformes d'extrémité (2) équipées de bogies (4) ; • un tirant (3) reliant chaque plateforme d'extrémité (2) et comprenant 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 (11) du tirant (3), • une structure pivotante (5) porteuse de la charge routière, assemblée de façon dissociable avec les deux plateformes d'extrémité (2) et située au-dessus du tirant (3) entre les deux plateformes d'extrémité (2) ; • un dispositif de liaison (15) prévu entre chaque extrémité libre distale (14) des bras (13) des fourches (12) et l'extrémité en regard de chacune des plateformes d'extrémité (2) ; caractérisé en ce que l'extrémité libre distale (14) des bras (13) des fourches (12) comprend une platine horizontale (46) présentant un orifice traversant, chaque dispositif de liaison (15) comprenant : • un anneau de traction (16) comportant : - 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, et entre lesquelles est logée l'extrémité libre distale dudit bras (13) des fourches (12), - 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 est filetée et dirigée vers la plateforme d'extrémité (2) ; • un axe (23) monté à travers l'orifice traversant de l'extrémité libre distale du bras (13) des fourches (12) et à travers les orifices traversants de l'anneau de traction (16) afin d'assembler l'anneau de traction (16) audit bras (13) des fourches (12) ; • une pièce réceptrice (25) solidarisée ou conformée d'une seule pièce avec la plateforme d'extrémité (2), et présentant un orifice traversant à travers lequel est engagée la tige (21) de l'anneau de traction (16) ; • un écrou (27) vissé sur l'extrémité filetée (22) de la tige (21) de l'anneau de traction (16) débouchant de l'autre côté de l'orifice traversant de la pièce réceptrice (25) ; 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) venant en appui contre la pièce réceptrice (25) et enserrant celle-ci afin d'immobiliser la tige (21) de l'anneau de traction (16) dans la pièce réceptrice (25).Railway wagon (1) for combined rail / road transport and loading / unloading of a road load, said wagon comprising: • two end platforms (2) equipped with bogies (4); • a tie rod (3) connecting each end platform (2) and comprising a middle part (11) extending along the longitudinal axis of the rail car (1), as well as a fork (12) with two arms (13 ) provided at each of the longitudinal ends of the middle part (11) of the tie rod (3), • a pivoting structure (5) carrying the road load, assembled in a separable manner with the two end platforms (2) and located above the tie rod (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 opposite end of each of the end platforms (2); characterized 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 traction ring (16) comprising: - 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 plates (18a, 18b ) horizontal and parallel, 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 formed 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 platform d 'end (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 pulling ring (16) in order to assemble the traction ring (16) at said forks arm (13) of the forks (12); • a receiving part (25) secured or shaped in one piece with the end platform (2), and having a through hole through which is engaged the rod (21) of the traction ring (16); • a nut (27) screwed onto the threaded end (22) of the rod (21) of the pulling ring (16) emerging on the other side of the orifice passing through the part receiver (25); 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 lock nut (28) coming to bear against the receiving part (25) and enclosing the latter in order to immobilize the rod (21) of the traction ring (16) in the part receiver (25). Wagon ferroviaire (1) selon la revendication 1, caractérisé en ce que l'écrou (27) de chaque dispositif de liaison (15) présente une gorge (56) annulaire prévue dans la face de l'écrou (27) située du côté de la pièce réceptrice (25).Railway wagon (1) according to claim 1, characterized in that the nut (27) of each connecting device (15) has an annular groove (56) provided in the face of the nut (27) located on the side of the receiving part (25). Wagon ferroviaire (1) selon la revendication 1 ou 2, caractérisé en ce que 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).Railway wagon (1) according to claim 1 or 2, characterized in that each connection device (15) further comprises a device for immobilizing and securing (29) the nut (27) which prevents the rotation of the 'nut (27). Wagon ferroviaire (1) selon la revendication précédente, caractérisé en ce que la tige (21) de l'anneau de traction (16) comprend au moins une rainure longitudinale (30) et ce que 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, 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).Railway wagon (1) according to the preceding claim, characterized in that the rod (21) of the traction ring (16) comprises at least one longitudinal groove (30) and that the immobilization and securing device (29 ) of the nut (27) comprises a nut stop plate (31) fixed on the nut (27) and having a central orifice (32) comprising at least one immobilization tab (33) projecting towards the center of said central orifice, said nut stop plate (31) being mounted on the rod (21) of the traction ring (16) with the at least one immobilization tab (33) housed in the 'at least one longitudinal groove (30) of said rod (21). Wagon ferroviaire (1) selon la revendication précédente, caractérisé en ce que la tôle d'arrêt d'écrou (31) est fixée sur l'écrou (27) par au moins une vis bloquée en rotation.Railway wagon (1) according to the preceding claim, characterized in that the nut stop plate (31) is fixed to the nut (27) by at least one screw locked in rotation. Wagon ferroviaire (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque dispositif de liaison (15) comprend en outre 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), cette extrémité de retenue (41) pénétrant au moins partiellement entre les deux platines (18a, 18b) horizontales et parallèles de l'anneau de traction (16) et empêchant la rotation du contre-écrou (28) par rapport à l'anneau de traction (16).Railway wagon (1) according to any one of the preceding claims, characterized in that each connection device (15) further comprises a lock nut stopper (39) having a fixing end (40) fixed on the lock nut (28) and a retaining end (41) opposite the fixing end (40) and extending towards the tie rod (3), this retaining end (41) penetrating at least partially between the two plates (18a, 18b) horizontal and parallel of the traction ring (16) and preventing the rotation of the lock nut (28) relative to the traction ring (16). Wagon ferroviaire (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque dispositif de liaison (15) comprend en outre 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 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.Railway wagon (1) according to any one of the preceding claims, characterized in that each connection device (15) further 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) being a nut (27) with a spherical bearing, the convex part with a spherical bearing (43) being directed towards the support ring ( 42), the contact surface (44) of the support ring (42) being concave and spherical in scope. Wagon ferroviaire (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque dispositif de liaison (15) comprend en outre une rondelle (45) montée sur la tige (21) de l'anneau de traction (16) entre la pièce réceptrice (25) et le contre-écrou (28).Railway wagon (1) according to any one of the preceding claims, characterized in that each connection device (15) further comprises a washer (45) mounted on the rod (21) of the traction ring (16) between the receiving part (25) and the lock nut (28). Wagon ferroviaire (1) selon la revendication précédente, caractérisé en ce que la rondelle (45) est une rondelle (45) ressort.Railway wagon (1) according to the preceding claim, characterized in that the washer (45) is a spring washer (45). Wagon ferroviaire (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que la platine horizontale de l'extrémité libre distale des bras (13) des fourches (12) et/ou en ce que chaque platine horizontale de la première partie (17) de l'anneau de traction (16) est/sont de forme sensiblement ovale.Railway wagon (1) according to any one of the preceding claims, characterized 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 traction ring (16) is / are of substantially oval shape. Wagon ferroviaire (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que 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.Railway wagon (1) according to any one of the preceding claims, characterized in that 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 shaped. Wagon ferroviaire selon l'une quelconque des revendications précédentes, caractérisé en ce que la pièce réceptrice (25) comporte un fourreau tubulaire (48) logé dans son orifice traversant et prévu pour venir en contact sur la tige (21) de l'anneau de traction (16).Railway wagon according to any one of the preceding claims, characterized in that the receiving part (25) comprises a tubular sheath (48) housed in its through orifice and intended to come into contact on the rod (21) of the ring traction (16). Wagon ferroviaire (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque dispositif de liaison (15) comprend en outre un dispositif de liaison supplémentaire (49) retenant l'extrémité libre distale 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).Railway wagon (1) according to any one of the preceding claims, characterized in that each connecting device (15) further comprises an additional connecting device (49) retaining the distal free end 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 'traction ring (16) with said end platform (2). Wagon ferroviaire (1) selon la revendication précédente, caractérisé en ce que chaque dispositif de liaison supplémentaire (49) comprend : • une pièce de fixation (50) solidarisée ou conformée d'une seule pièce avec la platine horizontale 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), ladite pièce de fixation (50) présentant un oblong traversant (51) ; • un axe vertical de maintien (52), solidarisé à ladite plateforme d'extrémité (2) et pénétrant à travers l'oblong traversant (51) de la pièce de fixation (50). Railway wagon (1) according to the preceding claim, characterized 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) fork (12), said fixing piece (50) having a through oblong (51); • a vertical retaining pin (52), secured to said end platform (2) and penetrating through the oblong through (51) of the fixing piece (50). Wagon ferroviaire (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que 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), l'axe vertical de maintien (52) et l'orifice traversant de la pièce réceptrice (25) étant logés dans ce logement.Railway wagon (1) according to any one of the preceding claims, characterized in that each connection device (15) further comprises a housing (53) formed in each end platform (2), into which at least partially penetrates the rod (21) of the pulling ring (16) and the fixing part (50), the vertical retaining pin (52) and the through hole of the receiving part (25) being housed in this housing. Wagon ferroviaire (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que chaque dispositif de liaison (15) comprend en outre 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).Railway wagon (1) according to any one of the preceding claims, characterized in that each connection device (15) further comprises an additional safety device (54) provided on the end platform (2) and comprising a strip security (55) located under the traction ring (16), in the immediate vicinity of said traction 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)

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

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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

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EP (1) EP3677484B1 (en)
CN (2) CN111376928A (en)
ES (1) ES2875000T3 (en)
FR (1) FR3091250B1 (en)
HU (1) HUE055030T2 (en)
PL (1) PL3677484T3 (en)

Citations (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
EP1292478A1 (en) 2000-06-21 2003-03-19 Lohr Industrie S.A. Combined railway/road transport car comprising two end platforms supporting a pivoting railway structure bearing the road car load
RU2374107C2 (en) * 2004-08-13 2009-11-27 Мсб Мэнеджмент Гмбх Method to transship cargoes and appropriate transportation system

Patent Citations (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
EP1292478A1 (en) 2000-06-21 2003-03-19 Lohr Industrie S.A. Combined railway/road transport car comprising two end platforms supporting a pivoting railway structure bearing the road car load
RU2374107C2 (en) * 2004-08-13 2009-11-27 Мсб Мэнеджмент Гмбх Method to transship cargoes and appropriate transportation system

Also Published As

Publication number Publication date
HUE055030T2 (en) 2021-10-28
CN111376928A (en) 2020-07-07
ES2875000T3 (en) 2021-11-08
EP3677484B1 (en) 2021-06-09
CN210454803U (en) 2020-05-05
FR3091250B1 (en) 2020-12-18
PL3677484T3 (en) 2021-10-11
FR3091250A1 (en) 2020-07-03

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