EP1958846A1 - End car of a railway convoy for passenger transport and corresponding convoy - Google Patents

Abstract

The coach (12) has a body (20) including a control cabin (22) and a passenger compartment (26) respectively delimited by a front part and a rear part (24) of the body. Two mono-axles (14) are orientable with respect to the body, and are respectively located below the compartment and the cabin. The body has a lateral door (48) located behind the cabin and longitudinally between the mono-axles. The compartment has a platform (28) with a door sill located at a height lesser than or equal to 360 millimeters.

Description

The present invention relates to an end car for rail passenger rail, the type comprising a body having a cockpit located at the front of the body and a passenger compartment located behind the cab.

Low-floor passenger coaches, and in particular tram cars, which are intended for use in city traffic, must be easily accessible and easily integrated into urban traffic.

It is possible to provide a tram end car with a cockpit, a bogie with two axles, and a side door between the bogie and the cab.

However, such a car has a significant front overhang giving the car a significant cinematic grip curve, which does not promote the integration of the car in traffic. The kinematic grip is the area swept by the curved box.

EP 0 968 111 proposes a car having a bogie arranged under the cabin, with axles having between them a reduced spacing, and provided with wheels of small diameter. Small diameter wheels limit floor height, but wear out faster, increasing maintenance and maintenance costs. In addition, the axles are lightly loaded, which increases the risk of derailment and limits the grip of the wheels.

An object of the invention is to provide a train end car overcoming these disadvantages, while ensuring good accessibility and limiting the cinematic grip curve.

For this purpose, the invention proposes a rowing end car, characterized in that it comprises two steerable mono-axles relative to the body, a single-axle being located under the compartment and the other under the cabin, the box comprising at least one side door located behind the cabin and longitudinally between the single-axles.

• le compartiment comprend un plancher possédant pour la porte un seuil de porte situé à une hauteur, par rapport aux sommets des rails d'une voie ferrée sur laquelle repose la voiture, inférieure ou égale à 400 mm, de préférence inférieure ou égale à 360 mm ;
• le plancher possède des rampes de pente inférieure à 10%, de préférence inférieure à 8% ;

According to other embodiments, the car comprises one or more of the following characteristics, taken in isolation or in any technically possible combination:

• the compartment comprises a floor having for the door a door sill located at a height, relative to the tops of the rails of a railway line on which the car is resting, less than or equal to 400 mm, preferably less than or equal to 360 mm ;
• the floor has ramps with a slope of less than 10%, preferably less than 8%;

The invention also relates to a passenger train consisting of several cars arranged in line, including at least one car head or tail as defined above.

• la figure 1 est une vue de côté en élévation d'un tramway comprenant deux voitures d'extrémité conformes à l'invention;
• la figure 2 est une vue de dessus en coupe selon 11-11 d'une des voitures d'extrémité de la figure 1 ; et
• la figure 3 est une vue analogue à celle de la figure 1 illustrant un tramway selon une variante.

The invention and its advantages will be better understood on reading the description which follows, given solely by way of example, and with reference to the appended drawings, in which:

• the figure 1 is a side elevational view of a streetcar comprising two end cars according to the invention;
• the figure 2 is a top view in section along 11-11 of one of the end cars of the figure 1 ; and
• the figure 3 is a view similar to that of the figure 1 illustrating a tramway according to a variant.

As shown on the figure 1 , a tram 2 consists of cars arranged in a line in a longitudinal direction L, including successively, from left to right on the figure 1 , a first tramway end car 4, a first intermediate car 6, a central car 8, a second intermediate car 10 and a second tram end car 12.

In the illustrated example, the cars 4, 8 and 12 are carrying cars, each of the cars 4, 8 and 12 comprising two mono-axles 14 for supporting and guiding the car along a railway line

Cars 6 and 10 are cars worn without means of support and guidance of cash. Each of the cars 6 and 10 is suspended between the adjacent cars, respectively 4 and 8, and 8 and 12.

The cars 4, 6, 8, 10 and 12 are interconnected by means of gangways 16.

In a manner known per se, each device 16 connects two adjacent cars in an articulated manner and allows passengers to pass from one car to another through a gangway through the device 16.

Cars 4 and 12 are, for example, identical. Only the car 12 (right on the figure 1 ) is described in detail in the following description with reference to Figures 1 and 2 .

The car 12 comprises a box 20 extending in the direction L, and having a front portion 22 internally defining a cockpit, and a rear portion 24 internally defining a passenger compartment 26 ( Figure 2 ).

As represented on the Figure 2 , the portion 24 comprises a floor 28, and two side walls 30 and 32 defining the compartment 26.

The compartment 26 is separated from the cabin 22 by a partition 36 extending transversely to the direction L.

The car 12 rests on two mono-axles 14 which are spaced longitudinally from one another.

Each of the single-axles 14 comprises a pair of coaxial wheels 40 of axis R substantially perpendicular to the direction L, and intended to be supported in a substantially vertical direction of bearing A, ie perpendicular to the plane of the track, on the rails of a railway.

Each of the single-axles 14 comprises for example a shaft 42 of axis R interconnecting the wheels 40 so that the latter are integral in rotation about the axis R. Alternatively, the shaft is offset vertically to the bottom with respect to the axis R.

The front mono-axle 14 is disposed under the cabin 22, and the rear mono-axle 14 is disposed under the compartment 26.

Each of the single-axles 14 is steerable relative to the body 20, which means that it is pivotally mounted relative to the body 20 about an axis of rotation C parallel to the direction A.

The body 20 rests directly on the mono axles. Alternatively, the car 12 comprises an intermediate frame resting on the single-axles 14 mounted orientable relative to this frame, and the body 20 rests on the frame.

As shown on the figure 2 each of the walls 30 and 32 is provided with a door 48. The doors are arranged opposite one another and located immediately behind the partition 36.

The height of a region of the floor 28 is considered to be the plane distance in the direction A between the tops of the rail tracks of a railway on which the car 12 bears, and this region.

The floor 28 defines in the compartment 26 a circulation corridor allowing travelers to circulate inside the compartment 26, and extending longitudinally from the partition 36 to the rear end of the box 20, which is open to allow the passenger traffic to the adjacent car.

The floor 28 is a low floor. This means that there are no steps, that the height of the floor 28 at the thresholds of the doors 48 is less than or equal to 400 mm, preferably less than 360 mm, and that the remainder of the floor 28 is located at the same height, or has differences in levels, the transition between the levels being carried out by longitudinal and / or transverse ramps having slopes less than 10%, preferably less than 8%, and in particular less than 6%.

It is possible in particular that the floor 28 has transverse ramps descending from the central region of the car to the thresholds of the doors 48.

The floor 28 is preferably located at a height less than the diameter of the wheels of the single-axles 14, and extends between wheel passages 52 raised with respect to the floor 28, and receiving the wheels of the single-axles 14.

The floor 28 is preferably provided with ramps or raised regions connected to the remainder of the floor 28 by ramps, to pass over the shafts 42 of the mono-axles 14.

Alternatively, the single-axles 14 are provided with trees offset downwards relative to the R axes of the wheels, and the floor is a low floor substantially flat over its entire extent or has only transverse ramps descending from a central region flat floor to door sills 48.

The doors 48 located immediately behind the cabin 22 allow access close to the driver. They can be advantageously provided with access means for persons with reduced mobility, whose operation can be monitored by the driver.

The low access height facilitates access to compartment 26, for all travelers, and in particular for passengers with reduced mobility.

The low height of the floor 28 as a whole, the absence of steps and the low slope ramps facilitate the movement of passengers in the compartment 26.

It is possible to attach seats to the wheel wells 52.

The single-axle 14 front, located under the cabin 22, reduces the overhang F ( Figure 1 ) defined as the longitudinal plane distance between the fulcrum P ( Figure 1 ) wheels 40 of the mono-axle 14 front on the rails of the railway and the nose of the car 12.

The low overhang F limits the cinematic grip of the car cornering, and facilitates the movement of the tram in the city.

The steerable mono-axles 14 facilitate the curve of the car 12.

The mono-axles 14 being separated by design, it is possible to choose their longitudinal spacing.

The mono-axles 14 must be sufficiently spaced to clear enough space to place the doors 48, while allowing a sufficient angular displacement in rotation of the single-axles 14 during the curve passages.

Thus, the distance between the mono-axles is greater than 2500mm, and is preferably between 3000mm and 4000mm. The distance is measured between the axes R of the wheels of the mono-axles 14.

The spacing is chosen for example to insert a wide door 48 facilitating access, including a double-leaf door.

The mono-axle 14 alone supports the front portion of the car 12. As a result, the wheel load of the mono-axle 14 is high, which reduces the risk of derailment, and increases the grip of the wheels on the wheels. rails.

It is therefore possible to provide a single-axle 14 front motorized, with a good efficiency of motorization. Optionally or alternatively, the rear mono-axle 14 is motorized. As a variant, none of the mono-axles 14 is motorized.

Furthermore, the provision of a single-axle 14 under the cabin 22 limits the space under the cabin 22 and allows to provide wheels of normal diameter, in particular of diameter equal to that of the rear single-axle 14. The diameter of the wheels is for example between 500 and 660 mm.

This increases the life of the wheels of the front mono-axle 14, and therefore reduces maintenance and replacement costs.

The prediction of a bogie with large wheels would require raising the floor of the cabin 22, which would not allow the driver to remain in a standing position, would force to provide steps between the compartment 26 and the cabin 22 to access that and, would limit the possibilities of drawings of the cabin 22 because of its size.

The low overhang F, the distance between the single-axles 14, and the overall architecture of the tramway 2 make it possible to obtain a satisfactory balance between the right-of-way kinematics on the ground outside the bend and inside the bend, for a better insertion of the tram into the traffic.

Tram 2 is only described by way of example. In a variant, a tram differs, for example, in the number and / or the architecture of the intermediate cars situated between cars 4 and 12 according to the invention.

So, in a variant like the one illustrated on the figure 3 , the tram includes an intermediate car carrier 8 having a bogie 54 instead of two mono-axles. This makes it possible to limit the cost of the tram as a whole.

The invention applies in particular to low floor trams intended to circulate in the city or peri-urban areas.

Claims (12)

End car (4, 12) for a passenger rail train (2) of the type comprising a body (20) having a flight deck (22) located at the front of the body (20) and a compartment travelers (26) located behind the cabin (22),
characterized in that it comprises two single-axles (14) orientable relative to the body (20), a single-axle (14) being located under the compartment (26) and the other under the cabin (22), the body (20) comprising at least one side door (48) located behind the cabin (22) and longitudinally between the single axles (14). Car according to claim 1, characterized in that the compartment (26) comprises a floor (28) having for the door a door sill located at a height, relative to the tops of the rails of a railroad track on which the car is resting , less than or equal to 400 mm, preferably less than or equal to 360 mm. Car according to claim 2, characterized in that the floor (28) has ramps with a slope of less than 10%, preferably less than 8%. A car according to any one of the preceding claims, wherein the diameter of the wheels of the single axle (14) located under the cab (22) is that of the wheels of the single axle (14) located under the compartment (26). A car according to any one of the preceding claims, wherein the diameter of the wheels of the single axle (14) located under the car (22) is between 500 and 660 mm. A car according to any one of the preceding claims, wherein the distance between the axes (R) of the wheels of the single-axles (14) is greater than 2500 mm. Car according to claim 6, wherein the distance between the axes (R) of the wheels of the single-axles (14) is between 3000 mm and 4000 mm. A passenger train comprising a plurality of cars arranged in a line, characterized in that it comprises at least one car (4, 12) end of train according to any one of the preceding claims. A transport train as claimed in claim 8, comprising successively a first car (4) at the end of a train, a first car (6) intermediate, a car (8) central, a second car (10) intermediate and a second car (12) ) of ream end. A transport train as claimed in claim 9, wherein each of the intermediate cars (6, 10) is suspended between the adjacent cars (4, 8, 8, 12). Conveyor belt according to claim 9 or 10, wherein the central car (8) is supported by two single axles. Conveyor belt according to claim 9 or 10, wherein the central car (8) is supported by a bogie.

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