Classifications

• • 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
• • 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

Definitions

• the present invention relates to a device allowing the retention in relative position of the end platforms of a combined rail / road transport wagon when the railway structure carrying the road load is in pivoting maneuver for loading. or its unloading.
• the wagons relating to combined rail / road transport with a pivoting carrying structure comprise two end platforms supported by rail bogies on which is mounted by dissociable assembly links the rail structure carrying the road load.
• Maintaining the position of these end platforms is essential to ensure the coincidence, engagement and closing of the dissociable assembly links between the supporting structure and the end platforms and thus to recreate the integrity of the wagon after the loading and unloading phases.
• the first relates to means on the ground, that is to say integrated into the rail track which are intended to immobilize the end platforms by retaining them in place by a temporary connection with the track.
• This solution has a cost which does not allow it to be offered in a competitive system.
• the second is to integrate the platforms end forms in a load-bearing structure called a double floor or an equivalent means through which pass all the forces represented by the load and the traction.
• a load-bearing structure called a double floor or an equivalent means through which pass all the forces represented by the load and the traction.
• this support structure is pivotally mounted around a pivot another floor carried for example by rolling means in contact with the upper face of the support structure which thus supports the entire load.
• This supporting structure provides a permanent mechanical connection with the end platforms and guarantees that the latter are kept in relative position during the movements of the wagon being disassociated from the loading / unloading operations.
• the load-bearing structure represents a substantial mass and thickness taken from the general and dimensional characteristics of the wagon.
• this supporting structure decreases the useful loading height, which risks no longer fitting into the railway gauge.
• this supporting structure ensuring the passage of pipes, conduits and cables allowing the transfer of energy and control fluids and the electrical supply of structures and equipment, cannot be easily removed.
• the invention aims to ensure the retention in the initial relative position of the end platforms during the loading / unloading phases while allowing the use of the entire railway gauge and the passage of cables and conduits.
• the invention relates to a device for holding the end platforms of a combined rail / road transport wagon in relative position using a carrying railway structure. pivotable for loading / unloading operations obliquely to the longitudinal direction of the wagon while using the entire railway gauge, characterized in that the end platforms are mechanically connected together in the low position by an element longitudinal link of constant length ensuring that the end platforms are kept in relative position, that is to say at a constant distance from each other when the load-bearing railway structure returns after loading, or its unloading obliquely.
• FIG. 1 is a general schematic perspective view in the dissociated state of a wagon with a carrying structure pivoting around a central pivot center presenting the device according to the invention
• Figure 2 is a general schematic perspective view in the dissociated state of a wagon with a supporting structure pivoting around an end pivot center showing the device according to one invention
• Figure 3 is a schematic cross-sectional view showing the retaining and connecting device housed in a tunnel-shaped housing in the floor of the supporting structure with representation of the lower part of the railway gauge in which it fits;
• Figure 4 is an overall perspective view from above and obliquely of an alternative embodiment of the invention having a central pivot center, each end platform being shown in the form of a box;
• Figure 5 is an overall perspective view from below and oblique of an alternative embodiment of the invention having a central pivot center, each end platform being shown in the form of a box; .
• Figure 6 is a detail perspective view showing the central part viewed obliquely and from above; .
• FIG. 7 is a detailed perspective view showing the central part viewed obliquely and from below in the case of a tunnel version; .
• Figure 8 is a schematic cross-sectional view at the central part of the device mounted on a wagon; .
• Figures 9 and 10 are schematic views in longitudinal section at the central level of the retaining and connecting device according to the invention respectively in the engaged state and in the disengaged state of its housing, in the case of a version with tunnel; .
• Figures 11 to 13 are schematic cross sections showing other sectional shapes of the retaining and connecting device 1 according to the invention.
• the retaining and connecting device consists of a mechanical connection of constant length in the form of a longitudinal connecting element 1 connecting together at a low level two end platforms 2 and 3 supported each by at least one rail bogie 4 or 5.
• This longitudinal connecting element 1 is fixed or articulated by each of its ends to a corresponding end platform 2 or 3 at a low level.
• This longitudinal connecting element 1 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 and unloading phases.
• the longitudinal connecting element 1 can be made with a small thickness so as not to penalize the useful loading dimensions with respect to the railway gauge.
• This pivoting support structure has a support floor 7 with a flat bottom 8 or otherwise shaped.
• this longitudinal connecting element 1 remains projecting outside the floor 7.
• a recessed longitudinal housing 9 in the form of a tunnel 10 fitted or formed in the floor 7 of the carrying railway structure 6.
• this longitudinal connecting element 1 Due to its length and the small thickness of its section, this longitudinal connecting element 1 tends to bend downwards in its central part. This bending causing a downward overshoot which can put the assembly out of shape, it is necessary to recall this element upwards in its central part 11, for example by a simple fixing or a suspension in the lower central part of the carrying railway structure 6
• This tunnel 10 also makes it possible to pass the fluid conduits under pressure and the electrical connection cables from an end platform 2 or 3 to 1 'other.
• This longitudinal connecting element 1 fulfills its main function of retaining in relative position the end platforms 2 and 3 in their initial relative position during the loading / unloading maneuvers to ensure the speed and convenience of assembly between the end platforms and the ends of the carrying railway structure 6 in all cases of position of the pivot center thereof.
• the invention is aimed not only at railway structures 6 pivoting around their center but also those pivoting at one of their ends or at any location.
• the longitudinal connecting element 1 fulfills a second technical function when the pivot axis is central. This involves supporting a pivot center 12.
• the central part 11 fulfills three functions simultaneously, namely that of securing the longitudinal connecting element 1 to the carrying railway structure 6, that of supporting the pivot center 12 around which the railway structure pivots carrier 6 and finally that in cooperation with associated means of carrying out the disengagement of the longitudinal connecting element 1 from its housing 9 recessed in the form of the tunnel 10 provided in the floor 7 of the supporting railway structure.
• connection assembly which can also be described as release-pivoting 13. More precisely and taking as an example the embodiment shown in FIGS. 6 and 7, the central part 11 of the longitudinal connecting element 1 is suspended on the upper face of the tunnel 10 from the floor of the carrying railway structure 6.
• a metal blade 14 of domed suspension with spring effect is mounted immobilized in abutment at each of its ends by three fixed points along which it can move by its longitudinal edges and along a central longitudinal guide slot 15 and 16 existing on either side of a central transverse central zone.
• This clearance space 17 is occupied by a release motor assembly 18, for example with pneumatic energy, comprising a pair of pneumatic bellows 19 and 20 as shown.
• This metal suspension blade 14 carries through the motor assembly 18 a pivoting center 21 for example in the form of a pivot block 22 on which is fixed by its central part the longitudinal connecting element 1 for example by screws such as 23 thus forming a complex connection assembly between the floor and the connection element 1.
• longitudinal connecting element 1 its structure is thin and various shapes of section are possible, from shapes with rectangular section as shown in FIG. 2, to thin ribbed or folded shapes, some examples of which are shown in Figures 11 to 13. The particular shape shown in the figure
• 11 will be preferred. It is a generally flat shape, the longitudinal edges of which are shaped into hollow tubes 24 and 25, for example of circular section, serving as a pipe for pressurized fluids either directly or as a protection and passage space for simple conduits or electrical or other cables.
• these longitudinal edges provide additional mechanical rigidity to the assembly, thus making it possible to further reduce the section thickness of the longitudinal connecting element 1.
• the longitudinal connecting element 1 is preferably substantially flat and thin.
• the ends of the connecting element 1 can have a shape in two divergent branches into two divergent branches, for example in Y for the passage of lifting and pivoting drive means mounted on the track. Opening branches of each end of the connecting element 1 can vary up to a maximum opening according to which the ends come to bear on the lower adjacent ends of the sides of the end platforms 2 and 3 in order to cooperate with members of the separable or fixing link provided at this level.
• the overall operation of the invention is as follows.
• the motor assembly 18 of bellows release is actuated which, by inflating and resting on the roof of the housing 9 in tunnel 10, force the curved blade 14 to bulge more and therefore to move away from the roof of the tunnel.
• the latter by bulging more, traverses a spacing stroke which is sufficient to release or extract the longitudinal connecting element from its housing 9 in the tunnel 10.
• the carrying railway structure 6 can then pivot freely around its center. pivoting materialized here by the pivot block 22 mounted on the central part 11 of the longitudinal connecting element 1.

Landscapes

• Engineering & Computer Science (AREA)
• Transportation (AREA)
• Mechanical Engineering (AREA)
• Loading Or Unloading Of Vehicles (AREA)
• Platform Screen Doors And Railroad Systems (AREA)
• Current-Collector Devices For Electrically Propelled Vehicles (AREA)
• Machines For Laying And Maintaining Railways (AREA)
• Connection Of Plates (AREA)

Applications Claiming Priority (3)

Publications (2)

Family

ID=8851525

Family Applications (1)

Country Status (7)

Families Citing this family (4)

Family Cites Families (4)

• 2000
  • 2000-06-21 FR FR0007961A patent/FR2810611B1/fr not_active Expired - Fee Related
• 2001
  • 2001-06-20 DE DE60117795T patent/DE60117795T2/de not_active Expired - Lifetime
  • 2001-06-20 ES ES01947545T patent/ES2261428T3/es not_active Expired - Lifetime
  • 2001-06-20 AT AT01947545T patent/ATE319599T1/de not_active IP Right Cessation
  • 2001-06-20 AU AU2001269206A patent/AU2001269206A1/en not_active Abandoned
  • 2001-06-20 EP EP01947545A patent/EP1292477B1/de not_active Expired - Lifetime
  • 2001-06-20 WO PCT/FR2001/001931 patent/WO2001098128A1/fr active IP Right Grant

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events