EP2142412B1 - Bogie for railway vehicle - Google Patents

Bogie for railway vehicle Download PDF

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Publication number
EP2142412B1
EP2142412B1 EP08788001.9A EP08788001A EP2142412B1 EP 2142412 B1 EP2142412 B1 EP 2142412B1 EP 08788001 A EP08788001 A EP 08788001A EP 2142412 B1 EP2142412 B1 EP 2142412B1
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EP
European Patent Office
Prior art keywords
bogie
wheels
motor
primary suspension
connecting rods
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.)
Active
Application number
EP08788001.9A
Other languages
German (de)
French (fr)
Other versions
EP2142412A1 (en
Inventor
Alain Rodet
Christophe Eche
Yves Longueville
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.)
Alstom Transport Technologies SAS
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Alstom Transport Technologies SAS
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Publication date
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Priority to PL08788001T priority Critical patent/PL2142412T3/en
Publication of EP2142412A1 publication Critical patent/EP2142412A1/en
Application granted granted Critical
Publication of EP2142412B1 publication Critical patent/EP2142412B1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/32—Guides, e.g. plates, for axle-boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/32—Guides, e.g. plates, for axle-boxes
    • B61F5/325—The guiding device including swinging arms or the like to ensure the parallelism of the axles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61D—BODY DETAILS OR KINDS OF RAILWAY VEHICLES
    • B61D13/00—Tramway vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F3/00—Types of bogies
    • B61F3/02—Types of bogies with more than one axle
    • B61F3/04—Types of bogies with more than one axle with driven axles or wheels

Definitions

  • the invention generally relates to rail vehicles, including trams.
  • Such a bogie is known from the document WO-00/64721 which describes a trolley including a body and at least one motorized bogie of this type.
  • the longitudinal members of the bogie frame are placed immediately inside the wheels, the drive motors of the wheels being placed outside the bogie with respect to the wheels.
  • Such a bogie has the advantage of allowing the development of a central low corridor in the chassis of the body, allowing a stepless access to the entire tram.
  • the low center aisle passes between the longitudinal members of the bogie frame.
  • This bogie can not be easily mounted by pivot connection means under the body. Indeed, it would then be necessary to reduce the width of the central corridor so as to create spaces between said low central corridor and the longitudinal members, in order to allow movement of the bogie relative to the body.
  • the corridor would become so narrow that it would no longer be possible to pass a disabled wheelchair or a stroller.
  • the invention aims to provide a bogie for arranging in the frame of the box a wide aisle wide, regardless of the connection mode between the body and the bogie.
  • the invention relates to a bogie of the aforementioned type, characterized in that the two rods are offset longitudinally relative to each other.
  • the invention relates to a railway vehicle comprising at least one bogie as described above.
  • the tramway 10 partially represented on the figures 1 and 2 comprises a box 12 provided with a body frame 14, and for example two bogies 16, each connected to the body 12 and disposed under the frame 14.
  • the body 12 is elongated in a main direction. It comprises an interior passenger space 18, bounded downwards by the frame 14, and seats 20 fixed to the frame 14.
  • the seats 20 are typically arranged in several rows extending perpendicularly to the main direction. The seats are oriented so that the passengers sitting on the seats look in the main direction.
  • the bogies 16 are able to support and guide the body 12 when the tramway moves along a path.
  • the front wheels 24 are coaxial, spaced transversely from one another, and are connected to the frame 22.
  • the rear wheels 26 are coaxial, spaced transversely from one another, and connected to the frame 22.
  • the front wheels 24 are spaced longitudinally from the rear wheels 26.
  • the front coupling means 29 comprise, for example, a front axle 36 linking the front wheels 24 in rotation with each other, a front reduction gearbox 38 and a front coupling 40 interposed between the front engine 28 and the front gearbox 38.
  • the gearbox 38 has an input rotatably connected to the motor shaft 28 via the coupling 40, and an output directly fixed to a front wheel 24.
  • the motor shaft 28 extends longitudinally, the coupling 40 typically comprising a longitudinally-oriented transmission shaft rotatably connected by gimbals with the motor shaft and with the inlet of the gearbox 38.
  • the rear coupling means 31 are of the same type as the front transmission means 29, and also comprise a rear axle 46 linking the two rear wheels 26 in rotation with each other, a rear reduction gear 48 and a rear coupling 50 interposed between the engine. rear 30 and the gearbox 48.
  • Each of the axles 36 and 46 is guided in rotation by two axle boxes 32, disposed immediately inside the wheels associated with the axle, and extending only over a fraction of the transverse length of the axle.
  • Each axle passes through the two axle boxes 32 and is guided in rotation inside them by bearings, for example ball bearings.
  • the frame 22 comprises two longitudinal longitudinal members 52 substantially parallel to each other, and at least two cross members 54 substantially parallel to each other, solidarisant the two longitudinal members to one another.
  • the longitudinal longitudinal members 52 and the axle boxes 32 are substantially arranged in the same plane parallel to the running plane.
  • Each spar extends longitudinally between two axle boxes 32 associated with the front wheel and the rear wheel located on the same side of the bogie.
  • Each spar 52 has front and rear end portions, respectively 56 and 58, aligned with and stopping at a distance longitudinally from the two axle boxes. 32.
  • These front and rear end portions 56 and 58 are connected to the axle boxes 32 by the primary suspension devices 33.
  • the motors 28 and 30 are rigidly fixed to the frame 22 of the bogie.
  • the drive motor of the front wheels 28 is disposed on a right lateral side of the bogie.
  • the motor 28, the gearbox 38 and the coupling 40 are arranged towards the outside of the bogie relative to the front wheels 24 and rear 26 straight.
  • the motor 28 is substantially equidistant from the front and rear axles 36 and 46.
  • the front gearbox 38 is disposed in the transverse extension of the front axle 36.
  • the rear wheel drive motor 30, the rear gear 48 and the rear coupling 50 are arranged on a left side of the bogie towards the outside of the bogie relative to the left front and rear wheels.
  • the motor 30 is also equidistant from the front and rear axles 36 and 46.
  • the rear reduction gear 48 is placed in the extension of the rear axle 46.
  • the pivot connection means 34 between the bogie and the body comprise a bolster 60, a ring gear 62 interposed between the body frame 14 and the bolster 60, and secondary suspension members 64 of the bolster 60 on the frame of the bolster 60. 22.
  • the bolster 60 extends transversely, substantially equidistant from the axles 36 and 46. It comprises a lowered central portion 66 carrying the ring 62, two raised end portions 68 and two inclined arms 70 connecting the central portion 66.
  • the ring 62 forms a ball bearing and comprises for example an inner ring 72 fixed to the bolster 60 and an outer ring 74 fixed to the body frame and rotatable with respect to the inner ring.
  • the parts 68 of the bolster are located in line with the median portions 76 of the longitudinal members, and are connected to these longitudinal members by the secondary suspension members 64.
  • Each secondary suspension member 64 comprises two elastic rubber / metal sandwiches arranged in chevrons on either side of the corresponding plate 68. Sandwiches are of the type described in FR-1 536 401 .
  • Each sandwich 78 comprises a plurality of layers of an elastic material such as rubber parallel to each other, a plurality of intermediate metal plates interposed between the layers of elastic material and plates end metal disposed at the base and the top of the sandwich. The intermediate plates and the end plates are parallel to each other and are parallel to the rubber layers. Each layer of rubber is thus disposed between two metal plates and adheres to these plates.
  • the end plates are rigidly fixed one to the plate 68 and the other to the spar 52.
  • the front and rear brakes 35 are disc brakes.
  • the bogie includes a brake for each axle.
  • the front brake 35 is disposed towards the outside of the bogie with respect to the left front wheel, in a position substantially symmetrical with that of the front gearbox 38. It comprises a disc 80 integral in rotation with the front axle 36 and at least one stirrup 82 mounted on the frame 22 and capable of pinching the disc 80.
  • the rear brake 35 is located towards the outside of the bogie relative to the rear right wheel 26, in the extension of the rear axle 46. It also includes a brake disc 80 integral with the rear axle 46 and a stirrup 82.
  • the bogie also comprises two vertical dampers 84 interposed between the median portions 76 of the longerons and the trays 68 of the bolster and two transverse dampers 85 interposed between the bogie frame 22 and the sleeper 60.
  • the bogie also comprises an anti-lock bar.
  • Roll 86 ( figure 2 ) substantially transverse connecting the two longitudinal members 52 to one another, and two vertical levers 87 connecting the anti-roll bar 86 to the two trays 68 of the bolster.
  • the anti-roll bar 86 is engaged in transverse bearings 88 fixed to the longitudinal members 52.
  • rigid bars 89 (visible on the figures 4 and 5 ) connect the mechanism 90 for controlling the brake calipers 82 to the bogie frame 22.
  • the primary suspension devices 33 located on both lateral sides of the bogie are so-called "low” devices.
  • the two rods 91 and 92 are placed in the same vertical plane, that is to say in the same plane perpendicular to the rolling plane of the bogie, the rod 91, located above the connecting rod 92, being called in the description that will follow the upper link, and the rod 92, the lower link.
  • the two connecting rods 91 and 92 are substantially parallel to each other and extend in a longitudinal direction substantially corresponding to the direction of the longitudinal members of the frame 22. They are thus perpendicular to the axles 36 and 46.
  • the connecting rods 91 and 92 have between their first and second respective connection points substantially the same longitudinal length.
  • the two connecting rods 91 and 92 are offset longitudinally with respect to each other when the primary suspension device is at rest and also when under load. So, as shown in figure 12 , the upper link 91 is shifted to the right of the figure 12 , that is to say towards the spar 52 with respect to the lower link 92. In such a way as to distribute the load between the two links 91 and 92, the second connection points 98 and 100 of the upper and lower links 91 and 92 are offset longitudinally symmetrically on either side of the axis of the axle 36 or 46. Thus, the connection point 98 of the upper link is offset relative to the transverse central axis of the axle a distance d to the spar 52.
  • connection point 100 of the lower link 92 is offset relative to the central axis of the axle of the same distance d in the longitudinal direction, opposite the spar 52.
  • the primary suspension device 33 is said to be "low” because, at rest under load, the connecting rods 91 and 92 are entirely located at a lower vertical level than the top 104 of the axle box 32.
  • the top 104 of the box axle is the point of this envelope located highest relative to the rolling plane of the bogie. This point 104 moves in the vertical direction with the axle box 32 according to the position of the connecting rods 91 and 92.
  • the elastic member 102 is a rubber-metal sandwich of the type described in the patent application FR-1 536 401 .
  • the elastic member 102 comprises a plurality of rubber layers 106 parallel to each other, one or more metal plates 108 interposed between the rubber layers 106, and end metal plates 110 disposed at the base and the top of the sandwich.
  • the plates 108 and 110 are parallel to each other and are parallel to the rubber layers 106.
  • Each rubber layer 106 is thus disposed between two metal plates 108 and / or 110 and adheres to these plates.
  • the compression axis of such an elastic member is perpendicular to the plates 108 and 110 and to the rubber layers 106.
  • Such a sandwich has a stiffness defined both in compression and in shear, that is to say respectively in response to a force exerted in a direction perpendicular to the plane of the plates 108, 110 and layers 106, and parallel to the plane of these plates and layers.
  • the upper and lower connecting rods 91 and 92 each comprise a lateral extension respectively 112 and 114, defining bearing surfaces facing each other respectively 116 and 118, for the elastic member 102.
  • the elastic member 102 is between the surfaces 116 and 118. These surfaces 116 and 118 are parallel to each other, the end plates 110 being pressed onto the bearing surfaces and rigidly fixed thereto.
  • the bearing surfaces 116 and 118 are oriented such that the axis of compression of the elastic member 102 forms, in the reference position, an angle ⁇ of between 0 ° and 90 ° with respect to the axis passing through the first connection points 94 and 96 of the two connecting rods.
  • the angle ⁇ is between 20 ° and 50 °, and is typically 30 °.
  • the two connecting rods 91 and 92 are connected to the axle box 32 of the bogie by their respective second connection points 98 and 100 via cylindrical elastic joints.
  • the two connecting rods are connected to the spar 52 at their respective first connection points 94 and 96 also by cylindrical elastic joints.
  • the rods 91 and 92 comprise at each of the connection points 94, 96, 98 and 100 a cross-axis end 120 engaged in a cylindrical orifice 122 provided, as the case may be, either in the axle box 32 or in the spar 52 (see figure 13 ).
  • An elastic sleeve 124 for example made of natural or synthetic rubber, of cylindrical shape, is interposed between the end of axis 120 and the peripheral wall of the orifice 122.
  • the axis end 120, the orifice 122 and the sleeve 124 are coaxial, of transverse axis.
  • the sleeve 124 adheres by an inner face to the end of axis 120 and by an outer face to the peripheral wall of the orifice 122.
  • Each primary suspension device 33 is located, at rest as well as under load, entirely under a level above the running surface of the bogie of between 200 mm and 400 mm, preferably between 250 mm and 350 mm and being typically 300 mm. for wheels having their diameters to nine of 590 mm.
  • connection points 94, 96, 98 and 100 constitutes a deformable parallelogram.
  • the connecting rods 91 and 92 each take up a fraction of the effort F at their second respective connection points 98 and 100, because these first connection points are placed symmetrically with respect to the axle.
  • the distribution of the force F between the two connecting rods 91 and 92 is a function of the position of the elastic block between the points 94 and 96.
  • the connecting rods 91 and 92 pivot upwards with respect to the spar 52 around the first connection points 94 and 96, that is to say in a clockwise direction on the figure 12 .
  • the bearing surfaces 116 and 118 tend to get closer.
  • the pivoting of the connecting rods 91 and 92 leads to exert on the elastic member 102 both a compressive force and a shear force.
  • the elastic member works in pure compression.
  • the elastic member works in pure shear.
  • the connecting rods 91 and 92 pivot with respect to the axle box 32 around the second connection points 98 and 100, which move vertically upwards like the figure 12 represents it in phantom.
  • the axle box 32 and its top 104 also undergo a vertical upward movement, but which is not shown on the figure 12 .
  • the connecting rods 91 and 92 rotate clockwise on the figure 12 relative to the axle box 32 and remain at a level below the top 104 of the axle box, which has moved upwards.
  • the pivoting of the connecting rods 91 and 92 causes torsion, for each connecting rod, elastic sleeves 124 of the first point of connection and also the second point of connection.
  • each spar In order to allow the connecting rods 91 and 92 to be mounted on the frame, the front and rear end portions 56 and 58 of each spar are shaped as forks. Each of these end portions is divided into two flanges 125 arranged opposite each other ( figure 3 ). The flanges 125 are substantially perpendicular to the transverse direction. The connecting rods 91 and 92 are mounted by their respective connection points 94 and 96 between the flanges 125.
  • the body frame 14 has a first raised portion 126 to the right front and rear right wheels, a second raised portion 128 to the right of the left front and rear wheels, and a lower portion 130 between the first and second raised portions 126 and 128
  • the raised portions 126 and 128 extend, parallel to the main direction, along the entire length of the bogie. Perpendicular to the main direction, the portion 126 has a width sufficient to cover the front engine 28, the front gearbox 38, the front coupling 40, the rear brake 35, the front wheels 24 and rear 26 straight.
  • the raised portion 126 also covers a large portion of the right spar 52.
  • the raised portion 128 has the same width as the portion 126 and, symmetrically, covers the rear engine 30, the rear gear 48, the rear coupling 50, the front brake 35, the front wheels 24 and rear 26 left and much of the left spar 52.
  • the lower part 130 forms a circulation corridor inside the box, this corridor being substantially parallel to the main direction.
  • the corridor 130 considered in a plane perpendicular to the main direction, extends in the middle of the body, that is to say halfway between the two side walls of the body.
  • the floor 132 of the traffic corridor is located at a level of substantially 480 mm with respect to the rolling plane of the bogie, considering that the wheels of the truck have their diameter to nine.
  • the chassis, the axles, the axle boxes, the primary suspension members, the bolster and the secondary suspension members are all entirely located at a level lower than that of the floor 132. This result is obtained thanks to the use of low primary suspension devices as described above.
  • the corridor 130 has a width, perpendicular to the main direction, of about 800 mm. It covers slightly the two longitudinal members 52. However, a significant separation is provided between the side walls 134 of the lower part 130 and the wheels 24 and 26, so as to allow the rotational movement of the bogie relative to the body.
  • each of the raised portions 126 and 128 includes, from front to back, areas of different levels. More specifically, each part comprises first a medium level zone 138, then a higher level zone 140 than the zone 138, then a lower level zone 142 than the zone 138, then a zone 144 of the same level as the zone 140 and finally a zone 146 of the same level as the zone 138.
  • the zone 142 extends in line with a plate 68 of the bolster and one of the engines. It is located at an intermediate level between that of the plate 68 and the top of the wheels 24 and 26.
  • zones 138, 140, 144 and 146 are all located at a level higher than that of the top of the wheels.
  • two seats 20 are fixed side by side in each of the zones 138, 140, 144 and 146.
  • the seats of the zones 140 and 144 face each other, the zone 142 allowing the passengers sitting on these seats to rest their feet.
  • the seats of zones 138 and 140 are arranged back to back, as are the seats of zones 144 and 146.
  • the ring 62 is fixed under the floor 132 of the corridor.
  • the face 148 of the floor 132 facing the ground present, considered perpendicular to the main direction, a profile substantially following that of the sleeper cross.
  • the figure 4 illustrates a first non-motorized variant embodiment of the bogie of Figures 1 to 3 . Only the differences with the bogie described above will be specified here. Identical elements, or performing the same function, will be designated by the same reference numbers.
  • This bogie does not include the front and rear engines 28 and 30, nor the front and rear gearboxes 38 and 48, nor the couplings 40 and 50. It has, however, two additional brakes 35, arranged instead of the front and rear reducers 38 and 48. The bogie therefore has, for each axle, two brakes 35 disposed towards the outside of the bogie with respect to the wheels.
  • the level of the traffic corridor, its width, and the arrangement of the seats 20 to the bogie in the body are identical for this variant to what has been described above with reference to the embodiment of the Figures 1 to 3 .
  • the figures 5 and 6 illustrate a second variant of non-pivoting embodiment of the bogie Figures 1 to 3 . Only the differences compared to the bogie Figures 1 to 3 will be detailed here, the identical elements, or providing the same function, being designated by the same references.
  • the bogie 16 has no bolster 60 and a crown 62.
  • the connection means 34 between the bogie and the body instead comprise support plates 149 rigidly fixed to the body frame 14 and interposed between the secondary suspension members 64 and 14.
  • the bogie is thus non-pivoting, in the sense that its connection means to the body allow only a very limited pivoting about an axis perpendicular to the running surface, generally less than 2 °.
  • the side walls 134 of the circulation lane can be arranged much closer to the wheels than in the embodiment of the Figures 1 to 3 , corresponding to a swiveling bogie.
  • the lowered portion 130 of the body frame covers a large portion of the longitudinal members 52, and has a width, perpendicular to the main direction, of substantially one meter.
  • the floor 132 is again located at a level of 480 mm with respect to the running surface of the bogie, for wheels having their diameter to nine.
  • Each bogie 16 comprises a single engine 150 able to drive both the front wheels and rear wheels.
  • the forward gearbox 38 is coupled to the single motor shaft 150 through the front coupling 40, the rear gearbox 48 being coupled to the motor shaft 150 through the rear coupling 50.
  • the motor 150, the gearboxes 38 and 48 and the couplings 40 and 50 are arranged between, on the one hand, a median longitudinal plane P1 of the front wheels 24 and median of the rear wheels 26 and, on the other hand, a passing plane P2. by the front and rear wheels 24 and 26 (see figure 7 ).
  • the motor 150, the reducers 38 and 48 and the couplings 40 and 50 are all arranged on the right side of the bogie, towards the inside of the bogie with respect to the wheels.
  • the reducers 38 and 48 are respectively placed immediately inside the front wheels 24 and rear 26.
  • gear units 38 and 48 act as axle boxes and comprise means for respectively rotating the front and rear axles 36 and 46, such as ball bearings.
  • the output of the gearbox 38 is fixed directly to the right front wheel 24 or to the front axle 36.
  • the output of the rear gearbox 48 is fixed directly to the rear wheel 26 or to the rear axle 46.
  • Gearheads 38 and 48, couplings 40 and 50, and motor 150 are aligned longitudinally.
  • the motor 150 is placed longitudinally between the gearboxes 38 and 48, the couplings 40 and 50 being respectively interposed between the gearbox 38 and the motor 150 and between the rear gearbox 48 and the motor 150.
  • Couplings 40 and 50 each comprise a longitudinally oriented transmission shaft, rotatably connected by gimbals to the motor shaft 150 and to the inlet of the gearbox 38 or 48.
  • the motor 150 is equidistant from the axles 36 and 46. Furthermore, the positions of the front and rear gearboxes 38 and 48 are symmetrical to one another by relative to a transverse plane P3, median of the front and rear wheels 24 and 26. As shown in figure 8 , the plane P3 is equidistant from the axles 36 and 46. Similarly, the positions of the couplings 40 and 50 are symmetrical to one another with respect to the plane P3.
  • the front and rear reducers 38 and 48 are different from each other and are chosen so as to drive the front and rear wheels in the same direction of rotation.
  • the bogie 16 is asymmetrical, the right spar 52 being different from the left spar 52, and the primary suspension devices 33 associated with the right wheels being different from the primary suspension devices 33 associated with the left wheels.
  • the right spar 52 has a low central portion 152 extending along the engine 150, and two raised end portions 154 and 156.
  • the left spar 52, the cross members 54 and the lower portion 152 of the right spar are arranged in the same plane substantially parallel to the rolling plane of the bogie.
  • the portion 152 is disposed outwardly of the bogie relative to the engine 150. It extends longitudinally from a cross member 54 to the other.
  • the motor 150 is rigidly attached to the portion 152. Its drive shaft is located at the axis of the axles 36 and 46, at an intermediate level between the portion 152 and the end portions 154 and 156.
  • the raised end portions 154 and 156 of the right spar extend longitudinally, respectively above the front gearbox 38 and the rear gearbox 48.
  • the portions 154 and 156 are rigidly secured to the central portion 152 by feet 158.
  • the primary suspension devices 33 associated with the front and rear right wheels each comprise two primary suspension members 160 of the rubber / metal sandwich type ( figures 8 and 9 ). Such sandwiches are described in FR-1 536 401 .
  • Each member comprises a plurality of layers of an elastic material such as rubber, and a plurality of metal plates interposed between the layers of elastic material and adherent to these layers.
  • Each of the members 160 is shaped in chevrons.
  • the members 160 of the primary suspension device associated with the right rear wheel are interposed between the rear raised portion 156 of the right spar and the rear reduction gear 48.
  • One of the members 160 is located at the front of the axle 46, and the other at the rear of the axle 46.
  • the members 160 are interposed between the raised portion before 154 of the right spar and the front reduction gear 38.
  • One of the primary suspension members is located at the front of the axle 36 and the other at the rear of the axle 36.
  • the left spar 52 of the chassis is similar to the longitudinal members of the frame of the first embodiment of the invention.
  • the primary suspension devices 33 associated with the left front and rear wheels are low devices identical to the primary suspension devices of the first embodiment of the invention. They are interposed between the end portions 56 and 58 of the left spar and the axle boxes 32 of the left wheels, as previously described.
  • Each lower device 33 is located at rest entirely below a level above the running surface of the bogie of between 200 mm and 400 mm, preferably between 250 mm and 350 mm, and typically equal to 300 mm, for wheels having their new diameters of 590 mm.
  • the bogie typically comprises four secondary suspension members 162 each comprising a helical spring interposed between the bogie frame 22 and the body frame 14.
  • the four secondary suspension members 162 are arranged symmetrically with respect to the longitudinal plane P1 and relative to each other. on plane P3.
  • Two members 162 are placed on the right side of the bogie towards the outside of the bogie relative to the right wheels 24 and 26.
  • the two other coil springs are arranged on the left side of the bogie toward the outside of this bogie with respect to the left wheels. and 26.
  • the secondary suspension members 162 are located longitudinally between the front wheels 24 and the rear wheels 26. They have substantially the same vertical dimensions as the engine 150 and are situated at the same level as the latter with respect to the running surface. (see figure 7 ).
  • the front and rear brakes 35 are disc brakes of the same type as those described with respect to the first embodiment of the invention.
  • These brakes are arranged on the left side of the bogie, towards the outside of the bogie relative to the left front and rear wheels 24 and 26. They are arranged in the transverse extension of the front and rear axles 36 and 46.
  • the bogie comprises a transverse damper 164 and two vertical dampers 166, all interposed between the bogie frame 22 and the body frame 14. It also comprises a rigid longitudinal rod 168 capable of transmitting the forces between the bogie frame and the chassis of the truck. checkout. Furthermore, the mechanism 90 for actuating the brake calipers is connected to the bogie frame via the connecting rods 174.
  • the raised right portion 126 of the body frame covers the secondary suspension members 162, the front and rear straight wheels, the engine 150, the front and rear gearboxes 38 and 48 and the front and rear couplings 40 and 50.
  • the left elevated portion 128 covers only the secondary suspension members 162, the left front and rear wheels and the front and rear brakes 35.
  • the first raised portion 126 is relatively wider than the second raised portion 128.
  • the circulation corridor 130 is thereby shifted transversely to the left elevated portion 128 relative to the median plane P4 of the body 12 and extending parallel to the main direction.
  • the floor 132 of the traffic corridor is located at a level of about 480 mm with respect to the running surface of the bogie, considering the diameter at nine wheels.
  • the circulation corridor 130 extends substantially, considered in a plane perpendicular to the main direction of the body, from the gearboxes 38 and 48 to the left wheels. It has a width of about 900 mm.
  • each of the raised parts of the body frame comprises zones 138 to 146 of different levels, to arrange sixteen seats to the right of the bogie.
  • the figure 10 illustrates a pivotal variant embodiment of the bogie Figures 7 to 9 . Only the differences with the bogie Figures 7 to 9 will be specified here. Identical elements, or performing the same function, will be designated by the same reference numbers.
  • the bogie 16 comprises pivot connection means 176 capable of binding the bogie to the body 12.
  • the means 176 comprise a transverse dancer cross member 178 and a pivot 180 interposed between the cross member 178 and the body frame 14.
  • the pivot 180 has a axis of rotation substantially perpendicular to the rolling plane of the bogie.
  • the cross member 178 has a lullaby shape similar to that of the cross member 60 of the first embodiment.
  • the raised end portions 182 of the bolster are shaped as a tray.
  • the secondary suspension members 162 are interposed between the plates 182 and the frame 22.
  • the pivot 180 is connected to the lower central portion 184 of the bolster.
  • the floor 132 of the corridor 130 is located at a level of about 520 mm above the rolling plane of the bogie, considering the diameter of the nine wheels.
  • the corridor 130 has a width of only about 660 mm, perpendicular to the main direction of the body, so as to leave between the side walls 134 of the corridor and the bogie organs a free space allowing the rotational movement of the bogie relative to the box.
  • the bogies described above have multiple advantages.
  • a low primary suspension makes it possible to arrange in the body frame a low, particularly wide traffic corridor, even when the bogie is mounted by pivot connection means under the body.
  • the front and rear couplings are arranged longitudinally between the motors and gearboxes. The transverse size of the transmissions from the engine to the wheels is reduced.
  • the output shafts of the motors are longitudinal, which reduces gear gearboxes compared to the case where the motors have transverse output shafts.
  • the primary suspensions are placed inside the bogie relative to the wheels, it is possible to lower the side walls of the body substantially to the axis of the wheels, or lower, while giving them a curved. As shown by figures 1 and 7 , the walls are not flat but, on the contrary, are slightly curved towards the outside of the box. Otherwise, this arrangement of the primary suspensions facilitates access to the wheels and brake discs, for maintenance or replacement.
  • the fact that the motors and gearboxes are placed towards the outside of the bogie relative to the wheels, and the fact that the frame and the axle boxes are arranged in the same plane substantially parallel to the running surface of the bogie, further facilitate the development of a low and wide circulation corridor in the body frame.
  • the fact that the motors are placed towards the outside of the bogie, vertically at the level of the bogie frame, and the fact that the secondary suspensions are placed inside the bogie with respect to the wheels, at the same level as the engines, allows to create in the body frame two low side zones between the front and rear wheels of the bogie. It becomes possible to have sixteen seats in the box above each bogie. Indeed, two seats can be arranged at the front of each low area, and two others at the rear of said low area, vis-à-vis the front seats. The low areas are used to house the legs of passengers sitting on the four seats vis-à-vis.
  • the second embodiment of the invention also has multiple advantages.
  • the drive motor of the bogie can advantageously be aligned longitudinally between the two reducers.
  • the or each motor and the gear units have substantially the same dimensions transversely, so that there remains a large free space between the engine and the gearboxes, on the one hand, and the wheels on the opposite side of the bogie, on the other hand on the other hand, to let through the cash circulation corridor.
  • the traffic corridor is offset from the median plane of the body and parallel to the main direction of the body.
  • the brakes and the secondary suspension springs of the bogie are placed towards the outside of the bogie with respect to the wheels, so as not to impede the passage of the traffic corridor of the box.
  • the architecture of the truck makes it possible to mount this bogie on the body either pivoting about a pivot substantially perpendicular to the running surface of the vehicle, or non-pivoting, that is to say with an angular displacement of less than or equal to 2 ° compared to the cashier.
  • the bogies described above can have multiple variants.
  • the bogie can be a bogie carrier, that is to say without engine.
  • the truck can be pivotable or non-pivoting, the width of the traffic corridor in the chassis frame above the bogie can be increased in the latter case.
  • the front and rear axles can be of the coupled type, as described in EP-0 911 239 or of the decoupled type, as described in the patent application bearing the deposit number FR 06 00834 . In both cases, it is possible to lower the height of the traffic corridor below 480 mm.
  • the secondary suspension members may be of any type, and include rubber / steel herringbone sandwiches or helical springs.
  • the bogie may comprise two or four secondary suspension members.
  • the brakes are not necessarily disc brakes, but may be of any type, for example drum brakes.
  • the bolster can be connected to the body frame by a ring, a pivot or a similar member.
  • the bogie may be equipped with lower primary suspensions only one side, right or left.
  • the two reducers are arranged on the same side of the bogie, towards the outside of the bogie relative to the trains, the engine being coupled to the two reducers.
  • the bogie may comprise two motors, each driving the two wheels associated with the same axle.
  • the two motors are aligned longitudinally between the gear units.

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  • Engineering & Computer Science (AREA)
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  • Transportation (AREA)
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Abstract

A railway vehicle including a plurality of bogies is provided. Each bogie includes a chassis, two front wheels and two rear wheels. For each front wheel and each rear wheel, a guidance device is provided for guiding the wheel in rotation and a primary suspension device of the chassis is provided on the guidance device. At least the primary suspension devices associated with the front and rear wheels are arranged on the same first lateral side of the bogie. The primary suspension devices each include two longitudinal connecting rods, each connected by a first connection point to the chassis and by a second connection point to the corresponding guidance device and at least one resilient component inserted between the two connecting rods to define at least the vertical stiffness of the primary suspension device, the two connecting rods being offset longitudinally relative to one another. Each of the bogies also includes a pivot connection device for connecting the bogie to the railway vehicle.

Description

L'invention concerne en général les véhicules ferroviaires, notamment les tramways.The invention generally relates to rail vehicles, including trams.

Plus précisément, l'invention concerne, selon un premier aspect, un bogie pour véhicule ferroviaire, le bogie étant du type comprenant :

  • un châssis ;
  • deux roues avant et deux roues arrière ;
  • pour chaque roue avant et pour chaque roue arrière, un organe de guidage en rotation de ladite roue et un dispositif de suspension primaire du châssis sur ledit organe de guidage, plus particulièrement un bogie selon les caractéristiques du préambule de la revendication indépendante 1.
More precisely, the invention relates, according to a first aspect, to a bogie for a railway vehicle, the bogie being of the type comprising:
  • a chassis ;
  • two front wheels and two rear wheels;
  • for each front wheel and for each rear wheel, a rotational guiding member of said wheel and a primary suspension device of the chassis on said guide member, more particularly a bogie according to the features of the preamble of the independent claim 1.

Un tel bogie est connu du document WO-00/64721 qui décrit un tramway comportant une caisse et au moins un bogie motorisé de ce type. Les longerons du châssis de bogie sont placés immédiatement à l'intérieur des roues, les moteurs d'entraînement des roues étant placés à l'extérieur du bogie par rapport aux roues.Such a bogie is known from the document WO-00/64721 which describes a trolley including a body and at least one motorized bogie of this type. The longitudinal members of the bogie frame are placed immediately inside the wheels, the drive motors of the wheels being placed outside the bogie with respect to the wheels.

Un tel bogie présente l'avantage de permettre l'aménagement d'un couloir central bas dans le châssis de la caisse, permettant un accès sans marche à tout le tramway. Le couloir central bas passe entre les longerons du châssis de bogie.Such a bogie has the advantage of allowing the development of a central low corridor in the chassis of the body, allowing a stepless access to the entire tram. The low center aisle passes between the longitudinal members of the bogie frame.

Ce bogie ne peut pas être facilement monté par des moyens de liaison pivot sous la caisse. En effet, il serait alors nécessaire de réduire la largeur du couloir central de manière à créer des espaces entre ledit couloir central bas et les longerons, en vue de permettre le débattement du bogie par rapport à la caisse. Le couloir deviendrait alors tellement étroit qu'il ne serait plus possible d'y faire passer un fauteuil roulant pour personne handicapée ou une poussette.This bogie can not be easily mounted by pivot connection means under the body. Indeed, it would then be necessary to reduce the width of the central corridor so as to create spaces between said low central corridor and the longitudinal members, in order to allow movement of the bogie relative to the body. The corridor would become so narrow that it would no longer be possible to pass a disabled wheelchair or a stroller.

Dans ce contexte, l'invention vise à proposer un bogie permettant d'aménager dans le châssis de la caisse un couloir bas de grande largeur, quel que soit le mode de liaison entre la caisse et le bogie.In this context, the invention aims to provide a bogie for arranging in the frame of the box a wide aisle wide, regardless of the connection mode between the body and the bogie.

A cette fin, l'invention porte sur un bogie du type précité, caractérisé en ce que les deux bielles sont décalées longitudinalement l'une par rapport à l'autre.To this end, the invention relates to a bogie of the aforementioned type, characterized in that the two rods are offset longitudinally relative to each other.

Le bogie peut également présenter une ou plusieurs des caractéristiques ci-dessous, considérées individuellement ou selon toutes les combinaisons techniquement possibles :

  • chacun desdits dispositifs de suspension primaire, les deux bielles sont sensiblement parallèles l'une à l'autre et présentent entre leurs premier et second points de liaison respectifs sensiblement la même longueur longitudinalement ;
  • dans chacun desdits dispositifs de suspension primaire, le ou chaque organe élastique est un sandwich comprenant une pluralité de couches d'un matériau élastique et une pluralité de plaques métalliques interposées entre les couches de matériau élastique et adhérentes aux couches élastiques ;
  • dans chacun desdits dispositifs de suspension primaire, le ou chaque organe élastique présente un axe de compression formant un angle β compris entre 0° et 90° par rapport à un axe passant par les prem iers points de liaison des deux bielles ;
  • dans chacun desdits dispositifs de suspension primaire, chacune des deux bielles est liée à l'organe de guidage correspondant à son second point de liaison par une articulation élastique cylindrique, et au châssis à son premier point de liaison également par une articulation élastique cylindrique ;
  • les deux bielles de chacun desdits dispositifs de suspension primaire sont disposées à un niveau vertical inférieur au sommet de l'organe de guidage correspondant ;
  • chaque dispositif de suspension primaire est disposé vers l'intérieur du bogie par rapport à la roue associée ;
  • le châssis comprend deux longerons longitudinaux disposés vers l'intérieur du bogie par rapport aux roues ;
  • les longerons et les organes de guidage des roues sont disposés sensiblement dans un même plan parallèle au plan de roulement du bogie ;
  • chaque longeron s'étend entre deux organes de guidage, ledit longeron présentant des parties d'extrémités avant et arrière alignées avec et s'arrêtant à distance longitudinalement des deux organes de guidage ;
  • le bogie comprend au moins un moteur et un dispositif apte à accoupler en rotation au moins une roue du bogie au moteur, le ou chaque moteur et le dispositif d'accouplement étant disposés vers l'extérieur du bogie par rapport aux roues ;
  • le bogie comprend deux moteurs et deux dispositifs aptes chacun à accoupler en rotation une paire de roues du bogie à un moteur, l'un des deux moteurs et l'un des deux dispositifs d'accouplement étant disposés vers l'extérieur du bogie par rapport aux roues situées du premier côté latéral du bogie, l'autre des deux moteurs et l'autre des deux dispositifs d'accouplement étant disposés vers l'extérieur du bogie par rapport aux roues situées à l'opposé du premier côté latéral du bogie ;
  • un des deux moteurs est accouplé aux deux roues avant et l'autre des deux moteurs est accouplé aux deux roues arrière ;
  • le bogie comprend au moins un moteur, des moyens d'accouplement des roues avant au ou à un moteur, et des moyens d'accouplement des roues arrière au ou à un moteur, le ou chaque moteur et les moyens d'accouplement avant et arrière étant disposés entre, d'une part, un plan longitudinal médian des deux roues avant et médian des deux roues arrière et, d'autre part, un plan longitudinal passant par la roue avant et la roue arrière situées du second côté latéral du bogie ;
  • les moyens d'accouplement avant et arrière sont disposés dans des positions symétriques l'une de l'autre par rapport à un plan transversal médian des roues avant et arrière ;
  • le bogie comprend un seul moteur d'entraînement aligné longitudinalement entre les moyens d'accouplement avant et arrière ;
  • le bogie comprend des organes de freinage des roues avant et arrière et des organes de suspension secondaire aptes à suspendre une caisse du véhicule ferroviaire au châssis de bogie, les organes de freinage et les organes de suspension secondaire étant placés vers l'extérieur du bogie par rapport aux roues ;
  • le longeron situé du second côté latéral du bogie comprend une partie centrale s'étendant le long du moteur et deux parties d'extrémité situées, par rapport au plan de roulement du bogie, à un niveau plus élevé que la partie centrale, les parties d'extrémité s'étendant au-dessus des organes de guidage en rotation des roues situées du second côté latéral du bogie, le moteur étant situé à un niveau inférieur à celui des parties d'extrémités par rapport au plan de roulement du bogie ;
  • le longeron situé du premier côté latéral du bogie et les organes de guidage des roues situées du premier côté latéral du bogie s'étendent sensiblement dans un même plan parallèle au plan de roulement du bogie ; et
  • le bogie comprend des moyens de liaison pivot aptes à lier le bogie à la caisse du véhicule ferroviaire.
The bogie may also have one or more of the following characteristics, considered individually or in any technically feasible combination:
  • each of said primary suspension devices, the two links are substantially parallel to each other and have between their respective first and second connection points substantially the same length longitudinally;
  • in each of said primary suspension devices, the or each elastic member is a sandwich comprising a plurality of layers of an elastic material and a plurality of metal plates interposed between the layers of elastic material and adherent to the elastic layers;
  • in each of said primary suspension devices, the or each elastic member has a compression axis forming an angle β between 0 ° and 90 ° with respect to an axis passing through the first connection points of the two connecting rods;
  • in each of said primary suspension devices, each of the two connecting rods is connected to the guide member corresponding to its second connection point by a cylindrical elastic articulation, and to the frame at its first connection point also by a cylindrical elastic articulation;
  • the two connecting rods of each of said primary suspension devices are arranged at a lower vertical level at the top of the corresponding guide member;
  • each primary suspension device is disposed towards the inside of the bogie with respect to the associated wheel;
  • the frame comprises two longitudinal longitudinal members arranged towards the inside of the bogie with respect to the wheels;
  • the longitudinal members and the wheel guide members are disposed substantially in the same plane parallel to the rolling plane of the bogie;
  • each spar extends between two guide members, said spar having front and rear end portions aligned with and stopping at a distance longitudinally of the two guide members;
  • the bogie comprises at least one motor and a device capable of coupling in rotation at least one wheel of the bogie to the engine, the or each motor and the coupling device being arranged towards the outside of the bogie with respect to the wheels;
  • the bogie comprises two motors and two devices each adapted to couple in rotation a pair of wheels of the bogie to a motor, one of the two motors and one of the two coupling devices being arranged towards the outside of the bogie relative to the wheels on the first lateral side of the bogie, the other of the two engines and the other of the two coupling devices being arranged towards the outside of the bogie with respect to the wheels situated opposite the first lateral side of the bogie;
  • one of the two engines is coupled to the two front wheels and the other of the two engines is coupled to the two rear wheels;
  • the bogie comprises at least one engine, means for coupling the front wheels to or to a motor, and means for coupling the rear wheels to or to a motor, the or each motor and the front and rear coupling means being arranged between, on the one hand, a median longitudinal plane of the two front and middle wheels of the two rear wheels and, on the other hand, a longitudinal plane passing through the front wheel and the rear wheel located on the second lateral side of the bogie;
  • the front and rear coupling means are arranged in positions symmetrical to one another with respect to a median transverse plane of the front and rear wheels;
  • the bogie comprises a single drive motor aligned longitudinally between the front and rear coupling means;
  • the bogie comprises braking members of the front and rear wheels and secondary suspension members adapted to suspend a body of the railway vehicle to the bogie frame, the braking members and the secondary suspension members being placed towards the outside of the bogie by relative to the wheels;
  • the spar located on the second lateral side of the bogie comprises a central portion extending along the engine and two end portions situated, with respect to the rolling plane of the bogie, at a level higher than the central part, the parts of end extending above the rotating guide members wheels located on the second lateral side of the bogie, the engine being situated at a level lower than that of the end parts with respect to the rolling plane of the bogie;
  • the spar located on the first lateral side of the bogie and the wheel guiding members located on the first lateral side of the bogie extend substantially in the same plane parallel to the rolling plane of the bogie; and
  • the bogie comprises pivot connection means capable of binding the bogie to the body of the railway vehicle.

Selon un second aspect, l'invention porte sur un véhicule ferroviaire comprenant au moins un bogie tel que décrit ci-dessus.According to a second aspect, the invention relates to a railway vehicle comprising at least one bogie as described above.

D'autres caractéristiques et avantages de l'invention ressortiront de la description qui en est donnée ci-dessous, à titre indicatif et nullement limitatif, en référence aux figures annexées parmi lesquelles :

  • la figure 1 est une vue en coupe transversale d'un bogie de tramway, motorisé, pivotant, conforme à un premier mode de réalisation de l'invention, la caisse du tramway étant également représentée, les éléments de la caisse et du bogie étant coupés selon différents plans pour plus de clarté ;
  • la figure 2 est une vue partielle en coupe longitudinale du bogie et de la caisse de la figure 1 ;
  • la figure 3 est une vue en perspective du bogie de la figure 1, les réducteurs n'étant pas représentés pour plus de clarté ;
  • la figure 4 est une vue en perspective similaire à celle de la figure 3, pour une variante non motorisée du bogie des figures 1 à 3 ;
  • la figure 5 est une vue en perspective similaire à celle de la figure 3, pour une variante non pivotante du bogie des figures 1 à 3 ;
  • la figure 6 est une vue en coupe transversale similaire à celle de la figure 1, pour le bogie de la figure 5 ;
  • les figures 7, 8 et 9 sont des vues similaires à celles des figures 1 à 3, pour un second mode de réalisation de l'invention, le bogie représenté sur les figures 7 à 9 étant non pivotant, la coupe de la figure 8 étant réalisée selon une ligne brisée ;
  • la figure 10 est une vue en perspective similaire à celle de la figure 9, pour une variante pivotante du second mode de réalisation de l'invention ;
  • la figure 11 est une vue en coupe transversale similaire à celle de la figure 7, pour le bogie pivotant de la figure 10 ;
  • la figure 12 est une vue de côté d'une partie avant du bogie de la figure 1, montrant dans le détail la constitution d'un organe de suspension primaire bas de ce bogie, les deux bielles de l'organe de suspension étant représentées en traits pleins au repos et étant représentées en traits mixtes déplacées sous l'effet d'une sollicitation verticale de bas en haut appliquée à la roue ; et
  • la figure 13 est une vue en coupe d'une articulation de la bielle supérieure de la figure 11, considérée suivant l'incidence des flèches XII.
Other characteristics and advantages of the invention will emerge from the description which is given below, for information only and in no way limitative, with reference to the appended figures among which:
  • the figure 1 is a cross-sectional view of a tramway bogie, motorized, pivoting, according to a first embodiment of the invention, the trolley case being also shown, the elements of the body and the bogie being cut according to different planes to clarify more ;
  • the figure 2 is a partial view in longitudinal section of the bogie and the box of the figure 1 ;
  • the figure 3 is a perspective view of the bogie of the figure 1 the gearboxes are not shown for clarity;
  • the figure 4 is a perspective view similar to that of the figure 3 , for a non-motorized variant of the bogie Figures 1 to 3 ;
  • the figure 5 is a perspective view similar to that of the figure 3 , for a non-pivoting variant of the bogie Figures 1 to 3 ;
  • the figure 6 is a cross-sectional view similar to that of the figure 1 , for the bogie of the figure 5 ;
  • the figures 7 , 8 and 9 are views similar to those of Figures 1 to 3 , for a second embodiment of the invention, the bogie represented on the Figures 7 to 9 being non-pivoting, the cut of the figure 8 being made along a broken line;
  • the figure 10 is a perspective view similar to that of the figure 9 for a pivotal variant of the second embodiment of the invention;
  • the figure 11 is a cross-sectional view similar to that of the figure 7 , for the swiveling bogie of the figure 10 ;
  • the figure 12 is a side view of a front part of the bogie of the figure 1 , showing in detail the constitution of a lower primary suspension member of this bogie, the two rods of the suspension member being shown in solid lines at rest and being represented in phantom lines displaced under the effect of a solicitation vertical from bottom to top applied to the wheel; and
  • the figure 13 is a sectional view of a joint of the upper connecting rod of the figure 11 , considered according to the incidence of arrows XII.

Dans la description qui va suivre, la droite et la gauche, l'avant et l'arrière seront entendus relativement au sens de déplacement normal du tramway.In the following description, the right and the left, the front and the back will be heard relative to the normal direction of travel of the tramway.

Le tramway 10 représenté partiellement sur les figures 1 et 2 comprend une caisse 12 pourvue d'un châssis de caisse 14, et par exemple deux bogies 16, chacun lié à la caisse 12 et disposé sous le châssis 14. La caisse 12 est de forme allongée suivant une direction principale. Elle comporte un espace intérieur d'accueil des passagers 18, délimité vers le bas par le châssis 14, et des sièges 20 fixés au châssis 14. Les sièges 20 sont typiquement agencés en plusieurs rangées s'étendant perpendiculairement à la direction principale. Les sièges sont orientés de telle sorte que les passagers assis sur les sièges regardent selon la direction principale.The tramway 10 partially represented on the figures 1 and 2 comprises a box 12 provided with a body frame 14, and for example two bogies 16, each connected to the body 12 and disposed under the frame 14. The body 12 is elongated in a main direction. It comprises an interior passenger space 18, bounded downwards by the frame 14, and seats 20 fixed to the frame 14. The seats 20 are typically arranged in several rows extending perpendicularly to the main direction. The seats are oriented so that the passengers sitting on the seats look in the main direction.

Les bogies 16 sont aptes à supporter et à guider la caisse 12 quand le tramway se déplace le long d'une voie.The bogies 16 are able to support and guide the body 12 when the tramway moves along a path.

Dans un premier mode de réalisation de l'invention, chaque bogie comporte, comme le montre la figure 3 :

  • un châssis de bogie 22 ;
  • deux roues avant 24 et deux roues arrière 26 ;
  • un moteur 28 d'entraînement des roues avant 24 et des moyens 29 aptes à accoupler le moteur 28 aux roues avant 24 ;
  • un moteur 30 d'entraînement des roues arrière 26 et des moyens 31 aptes à accoupler le moteur 30 aux roues arrière 26 ;
  • pour chaque roue avant 24 et chaque roue arrière 26, une boîte d'essieux 32 et un dispositif de suspension primaire 33 du châssis 22 sur ladite boîte d'essieux ;
  • des moyens de liaison pivot 34 aptes à lier le bogie 16 à la caisse 12 ;
  • des freins avant et arrière 35.
In a first embodiment of the invention, each bogie comprises, as shown in FIG. figure 3 :
  • a bogie frame 22;
  • two front wheels 24 and two rear wheels 26;
  • a motor 28 for driving the front wheels 24 and means 29 for coupling the motor 28 to the front wheels 24;
  • a motor 30 for driving the rear wheels 26 and means 31 able to couple the motor 30 to the rear wheels 26;
  • for each front wheel 24 and rear wheel 26, an axle box 32 and a primary suspension device 33 of the chassis 22 on said axle box;
  • pivot connection means 34 able to bind the bogie 16 to the body 12;
  • front and rear brakes 35.

Les roues avant 24 sont coaxiales, espacées transversalement l'une de l'autre, et sont liées au châssis 22. De même, les roues arrière 26 sont coaxiales, espacées transversalement l'une de l'autre, et liées au châssis 22. Les roues avant 24 sont espacées longitudinalement des roues arrière 26.The front wheels 24 are coaxial, spaced transversely from one another, and are connected to the frame 22. Likewise, the rear wheels 26 are coaxial, spaced transversely from one another, and connected to the frame 22. The front wheels 24 are spaced longitudinally from the rear wheels 26.

Les moyens d'accouplement avant 29 comprennent par exemple un essieu avant 36 liant en rotation les roues avant 24 entre elles, un réducteur avant 38 et un accouplement avant 40 interposé entre le moteur avant 28 et le réducteur avant 38.The front coupling means 29 comprise, for example, a front axle 36 linking the front wheels 24 in rotation with each other, a front reduction gearbox 38 and a front coupling 40 interposed between the front engine 28 and the front gearbox 38.

Le réducteur 38 comporte une entrée liée en rotation à l'arbre du moteur 28 par l'intermédiaire de l'accouplement 40, et une sortie directement fixée à une roue avant 24. L'arbre du moteur 28 s'étend longitudinalement, l'accouplement 40 comprenant typiquement un arbre de transmission d'orientation longitudinale lié en rotation par des cardans avec l'arbre du moteur et avec l'entrée du réducteur 38.The gearbox 38 has an input rotatably connected to the motor shaft 28 via the coupling 40, and an output directly fixed to a front wheel 24. The motor shaft 28 extends longitudinally, the coupling 40 typically comprising a longitudinally-oriented transmission shaft rotatably connected by gimbals with the motor shaft and with the inlet of the gearbox 38.

Les moyens d'accouplement arrière 31 sont du même type que les moyens de transmission avant 29, et comprennent également un essieu arrière 46 liant en rotation les deux roues arrière 26 entre elles, un réducteur arrière 48 et un accouplement arrière 50 interposé entre le moteur arrière 30 et le réducteur 48.The rear coupling means 31 are of the same type as the front transmission means 29, and also comprise a rear axle 46 linking the two rear wheels 26 in rotation with each other, a rear reduction gear 48 and a rear coupling 50 interposed between the engine. rear 30 and the gearbox 48.

Chacun des essieux 36 et 46 est guidé en rotation par deux boîtes d'essieux 32, disposées immédiatement à l'intérieur des roues associées à l'essieu, et s'étendant seulement sur une fraction de la longueur transversale de l'essieu. Chaque essieu traverse les deux boîtes d'essieu 32 et est guidé en rotation à l'intérieur de celles-ci par des paliers, par exemple des roulements à billes.Each of the axles 36 and 46 is guided in rotation by two axle boxes 32, disposed immediately inside the wheels associated with the axle, and extending only over a fraction of the transverse length of the axle. Each axle passes through the two axle boxes 32 and is guided in rotation inside them by bearings, for example ball bearings.

Le châssis 22 comporte deux longerons longitudinaux 52 sensiblement parallèles l'un à l'autre, et au moins deux traverses 54 transversales sensiblement parallèles l'une à l'autre, solidarisant les deux longerons l'un à l'autre.The frame 22 comprises two longitudinal longitudinal members 52 substantially parallel to each other, and at least two cross members 54 substantially parallel to each other, solidarisant the two longitudinal members to one another.

Les longerons longitudinaux 52 et les boîtes d'essieux 32 sont sensiblement disposés dans un même plan parallèle au plan de roulement. Chaque longeron s'étend longitudinalement entre deux boîtes d'essieux 32 associées à la roue avant et à la roue arrière situées d'un même côté latéral du bogie. Chaque longeron 52 présente des parties d'extrémité avant et arrière, respectivement 56 et 58, alignées avec et s'arrêtant à distance longitudinalement des deux boîtes d'essieux 32. Ces parties d'extrémité avant et arrière 56 et 58 sont liées aux boites d'essieux 32 par les dispositifs de suspension primaires 33.The longitudinal longitudinal members 52 and the axle boxes 32 are substantially arranged in the same plane parallel to the running plane. Each spar extends longitudinally between two axle boxes 32 associated with the front wheel and the rear wheel located on the same side of the bogie. Each spar 52 has front and rear end portions, respectively 56 and 58, aligned with and stopping at a distance longitudinally from the two axle boxes. 32. These front and rear end portions 56 and 58 are connected to the axle boxes 32 by the primary suspension devices 33.

Les moteurs 28 et 30 sont rigidement fixés sur le châssis 22 du bogie. Le moteur d'entraînement des roues avant 28 est disposé d'un côté latéral droit du bogie. Le moteur 28, le réducteur 38 et l'accouplement 40 sont disposés vers l'extérieur du bogie par rapport aux roues avant 24 et arrière 26 droites. Le moteur 28 est sensiblement équidistant des essieux avant et arrière 36 et 46. Le réducteur avant 38 est disposé dans le prolongement transversal de l'essieu avant 36.The motors 28 and 30 are rigidly fixed to the frame 22 of the bogie. The drive motor of the front wheels 28 is disposed on a right lateral side of the bogie. The motor 28, the gearbox 38 and the coupling 40 are arranged towards the outside of the bogie relative to the front wheels 24 and rear 26 straight. The motor 28 is substantially equidistant from the front and rear axles 36 and 46. The front gearbox 38 is disposed in the transverse extension of the front axle 36.

De manière symétrique, le moteur d'entraînement des roues arrière 30, le réducteur arrière 48 et l'accouplement arrière 50 sont disposés d'un côté latéral gauche du bogie, vers l'extérieur du bogie par rapport aux roues avant et arrière gauches. Le moteur 30 est lui aussi équidistant des essieux avant et arrière 36 et 46. Le réducteur arrière 48 est placé dans le prolongement de l'essieu arrière 46.In a symmetrical manner, the rear wheel drive motor 30, the rear gear 48 and the rear coupling 50 are arranged on a left side of the bogie towards the outside of the bogie relative to the left front and rear wheels. The motor 30 is also equidistant from the front and rear axles 36 and 46. The rear reduction gear 48 is placed in the extension of the rear axle 46.

Les moyens de liaison pivot 34 entre le bogie et la caisse comprennent une traverse danseuse 60, une couronne 62 interposée entre le châssis de caisse 14 et la traverse danseuse 60, et des organes de suspension secondaires 64 de la traverse danseuse 60 sur le châssis de bogie 22. La traverse danseuse 60 s'étend transversalement, sensiblement à équidistance des essieux 36 et 46. Elle comprend une partie centrale surbaissée 66 portant la couronne 62, deux parties d'extrémité surélevés 68 et deux bras inclinés 70 reliant la partie centrale 66 aux plateaux d'extrémité 68. La couronne 62 forme un roulement à billes et comporte par exemple une bague interne 72 fixée à la traverse danseuse 60 et une bague externe 74 fixée au châssis de caisse et mobile en rotation par rapport à la bague interne.The pivot connection means 34 between the bogie and the body comprise a bolster 60, a ring gear 62 interposed between the body frame 14 and the bolster 60, and secondary suspension members 64 of the bolster 60 on the frame of the bolster 60. 22. The bolster 60 extends transversely, substantially equidistant from the axles 36 and 46. It comprises a lowered central portion 66 carrying the ring 62, two raised end portions 68 and two inclined arms 70 connecting the central portion 66. The ring 62 forms a ball bearing and comprises for example an inner ring 72 fixed to the bolster 60 and an outer ring 74 fixed to the body frame and rotatable with respect to the inner ring.

Les parties 68 de la traverse danseuse sont situées à l'aplomb de parties médianes 76 des longerons, et sont liées à ces longerons par les organes de suspension secondaires 64.The parts 68 of the bolster are located in line with the median portions 76 of the longitudinal members, and are connected to these longitudinal members by the secondary suspension members 64.

Chaque organe de suspension secondaire 64 comprend deux sandwichs élastiques caoutchouc/métal, disposés en chevrons de part et d'autre du plateau 68 correspondant. Les sandwichs sont du type décrit dans FR-1 536 401 . Chaque sandwich 78 comprend une pluralité de couches d'un matériau élastique tel que du caoutchouc parallèles les unes aux autres, une pluralité de plaques métalliques intermédiaires interposées entre les couches de matériau élastique et des plaques métalliques d'extrémité disposées à la base et au sommet du sandwich. Les plaques intermédiaires et les plaques d'extrémité sont parallèles entre elles et sont parallèles aux couches de caoutchouc. Chaque couche de caoutchouc est ainsi disposée entre deux plaques métalliques et adhère à ces plaques. Les plaques d'extrémité sont rigidement fixées l'une au plateau 68 et l'autre au longeron 52.Each secondary suspension member 64 comprises two elastic rubber / metal sandwiches arranged in chevrons on either side of the corresponding plate 68. Sandwiches are of the type described in FR-1 536 401 . Each sandwich 78 comprises a plurality of layers of an elastic material such as rubber parallel to each other, a plurality of intermediate metal plates interposed between the layers of elastic material and plates end metal disposed at the base and the top of the sandwich. The intermediate plates and the end plates are parallel to each other and are parallel to the rubber layers. Each layer of rubber is thus disposed between two metal plates and adheres to these plates. The end plates are rigidly fixed one to the plate 68 and the other to the spar 52.

Les freins avant et arrière 35 sont des freins à disques. Le bogie comprend un frein pour chaque essieu. Le frein avant 35 est disposé vers l'extérieur du bogie par rapport à la roue avant gauche, dans une position sensiblement symétrique de celle du réducteur avant 38. Il comporte un disque 80 solidaire en rotation de l'essieu avant 36 et au moins un étrier 82 monté sur le châssis 22 et susceptible de pincer le disque 80.The front and rear brakes 35 are disc brakes. The bogie includes a brake for each axle. The front brake 35 is disposed towards the outside of the bogie with respect to the left front wheel, in a position substantially symmetrical with that of the front gearbox 38. It comprises a disc 80 integral in rotation with the front axle 36 and at least one stirrup 82 mounted on the frame 22 and capable of pinching the disc 80.

Le frein arrière 35 est situé vers l'extérieur du bogie par rapport à la roue arrière droite 26, dans le prolongement de l'essieu arrière 46. Il comprend lui aussi un disque de frein 80 solidaire de l'essieu arrière 46 et un étrier 82.The rear brake 35 is located towards the outside of the bogie relative to the rear right wheel 26, in the extension of the rear axle 46. It also includes a brake disc 80 integral with the rear axle 46 and a stirrup 82.

Le bogie comporte également deux amortisseurs verticaux 84 interposés entre les parties médianes 76 des longerons et les plateaux 68 de la traverse danseuse et deux amortisseurs transversaux 85 interposés entre le châssis de bogie 22 et la traverse danseuse 60. Le bogie comporte également une barre anti-roulis 86 (figure 2) sensiblement transversale reliant les deux longerons 52 l'un à l'autre, et deux leviers verticaux 87 liant la barre anti-roulis 86 aux deux plateaux 68 de la traverse danseuse. La barre anti-roulis 86 est engagée dans des paliers 88 transversaux fixés aux longerons 52. Par ailleurs, des barres rigides 89 (visibles sur les figures 4 et 5) lient le mécanisme 90 de commande des étriers de frein 82 au châssis de bogie 22.The bogie also comprises two vertical dampers 84 interposed between the median portions 76 of the longerons and the trays 68 of the bolster and two transverse dampers 85 interposed between the bogie frame 22 and the sleeper 60. The bogie also comprises an anti-lock bar. Roll 86 ( figure 2 ) substantially transverse connecting the two longitudinal members 52 to one another, and two vertical levers 87 connecting the anti-roll bar 86 to the two trays 68 of the bolster. The anti-roll bar 86 is engaged in transverse bearings 88 fixed to the longitudinal members 52. Moreover, rigid bars 89 (visible on the figures 4 and 5 ) connect the mechanism 90 for controlling the brake calipers 82 to the bogie frame 22.

Comme visible sur les figures 2 et 12, les dispositifs de suspension primaires 33 situés des deux côtés latéraux du bogie sont des dispositifs dits « bas ».As visible on figures 2 and 12 , the primary suspension devices 33 located on both lateral sides of the bogie are so-called "low" devices.

Chaque dispositif de suspension primaire 33 comprend :

  • deux bielles 91 et 92, liées par des premiers points de liaison respectifs 94 et 96 à un longeron 52, et par des second points de liaison respectifs 98 et 100 à la boîte d'essieu 32 ;
  • un organe élastique 102 interposé entre les deux bielles 91 et 92 en vue de définir au moins la raideur verticale de l'organe de suspension primaire 33.
Each primary suspension device 33 comprises:
  • two connecting rods 91 and 92, linked by first respective connection points 94 and 96 to a spar 52, and by second respective connection points 98 and 100 to the axle box 32;
  • an elastic member 102 interposed between the two connecting rods 91 and 92 in order to define at least the vertical stiffness of the primary suspension member 33.

Les deux bielles 91 et 92 sont placées dans un même plan vertical, c'est-à-dire dans un même plan perpendiculaire au plan de roulement du bogie, la bielle 91, située au-dessus de la bielle 92, étant appelée dans la description qui va suivre la bielle supérieure, et la bielle 92, la bielle inférieure.The two rods 91 and 92 are placed in the same vertical plane, that is to say in the same plane perpendicular to the rolling plane of the bogie, the rod 91, located above the connecting rod 92, being called in the description that will follow the upper link, and the rod 92, the lower link.

Au repos, les deux bielles 91 et 92 sont sensiblement parallèles l'une à l'autre et s'étendent suivant une direction longitudinale correspondant sensiblement à la direction des longerons du châssis 22. Elles sont ainsi perpendiculaires aux essieux 36 et 46. Les bielles 91 et 92 présentent entre leurs premier et second points de liaison respectifs sensiblement la même longueur longitudinale.At rest, the two connecting rods 91 and 92 are substantially parallel to each other and extend in a longitudinal direction substantially corresponding to the direction of the longitudinal members of the frame 22. They are thus perpendicular to the axles 36 and 46. The connecting rods 91 and 92 have between their first and second respective connection points substantially the same longitudinal length.

Comme le montre la figure 12, les deux bielles 91 et 92 sont décalées longitudinalement l'une par rapport à l'autre quand le dispositif de suspension primaire est au repos et également quand il est sous charge. Ainsi, comme le montre la figure 12, la bielle supérieure 91 est décalée vers la droite de la figure 12, c'est-à-dire vers le longeron 52 par rapport à la bielle inférieure 92. De manière à répartir la charge entre les deux bielles 91 et 92, les seconds points de liaison 98 et 100 des bielles supérieure et inférieure 91 et 92 sont décalés longitudinalement de manière symétrique de part et d'autre de l'axe de l'essieu 36 ou 46. Ainsi, le point de liaison 98 de la bielle supérieure est décalé par rapport à l'axe central transversal de l'essieu d'une distance d vers le longeron 52. Symétriquement, le point de liaison 100 de la bielle inférieure 92 est décalé par rapport à l'axe central de l'essieu de la même distance d suivant la direction longitudinale, à l'opposé du longeron 52. Avec cette disposition, il y a égale répartition de la charge entre les deux bielles 91 et 92 quand l'organe élastique 102 est centré entre les points de liaison 94 et 96, c'est-à-dire quand le centre de l'organe élastique 102 est placé à équidistance des points 94 et 96 sur la droite passant par les deux points 94 et 96.As shown in figure 12 the two connecting rods 91 and 92 are offset longitudinally with respect to each other when the primary suspension device is at rest and also when under load. So, as shown in figure 12 , the upper link 91 is shifted to the right of the figure 12 , that is to say towards the spar 52 with respect to the lower link 92. In such a way as to distribute the load between the two links 91 and 92, the second connection points 98 and 100 of the upper and lower links 91 and 92 are offset longitudinally symmetrically on either side of the axis of the axle 36 or 46. Thus, the connection point 98 of the upper link is offset relative to the transverse central axis of the axle a distance d to the spar 52. Symmetrically, the connection point 100 of the lower link 92 is offset relative to the central axis of the axle of the same distance d in the longitudinal direction, opposite the spar 52. With this arrangement, there is equal distribution of the load between the two connecting rods 91 and 92 when the elastic member 102 is centered between the connection points 94 and 96, that is to say when the center of the elastic member 102 is placed equidistant from points 94 and 96 on the go through the two points 94 and 96.

Le dispositif de suspension primaire 33 est dit « bas » car, au repos au sous charge, les bielles 91 et 92 sont entièrement situées à un niveau vertical inférieur au sommet 104 de la boîte d'essieu 32. Le sommet 104 de la boîte d'essieu est le point de cette enveloppe situé le plus haut par rapport au plan de roulement du bogie. Ce point 104 se déplace dans la direction verticale avec la boite d'essieu 32 selon la position des bielles 91 et 92.The primary suspension device 33 is said to be "low" because, at rest under load, the connecting rods 91 and 92 are entirely located at a lower vertical level than the top 104 of the axle box 32. The top 104 of the box axle is the point of this envelope located highest relative to the rolling plane of the bogie. This point 104 moves in the vertical direction with the axle box 32 according to the position of the connecting rods 91 and 92.

L'organe élastique 102 est un sandwich caoutchouc-métal du type décrit dans la demande de brevet FR-1 536 401 . L'organe élastique 102 comprend une pluralité de couches de caoutchouc 106 parallèles les unes aux autres, une ou plusieurs plaques métalliques 108 interposées entre les couches de caoutchouc 106, et des plaques métalliques d'extrémité 110 disposées à la base et au sommet du sandwich. Les plaques 108 et 110 sont parallèles entre elles et sont parallèles aux couches de caoutchouc 106. Chaque couche de caoutchouc 106 est ainsi disposée entre deux plaques métalliques 108 et/ou 110 et adhère à ces plaques.The elastic member 102 is a rubber-metal sandwich of the type described in the patent application FR-1 536 401 . The elastic member 102 comprises a plurality of rubber layers 106 parallel to each other, one or more metal plates 108 interposed between the rubber layers 106, and end metal plates 110 disposed at the base and the top of the sandwich. The plates 108 and 110 are parallel to each other and are parallel to the rubber layers 106. Each rubber layer 106 is thus disposed between two metal plates 108 and / or 110 and adheres to these plates.

L'axe de compression d'un tel organe élastique est perpendiculaire aux plaques 108 et 110 et aux couches de caoutchouc 106.The compression axis of such an elastic member is perpendicular to the plates 108 and 110 and to the rubber layers 106.

Un tel sandwich présente une raideur définie à la fois en compression et en cisaillement, c'est-à-dire respectivement en réponse à un effort exercé suivant une direction perpendiculaire au plan des plaques 108, 110 et des couches 106, et parallèlement au plan de ces plaques et de ces couches.Such a sandwich has a stiffness defined both in compression and in shear, that is to say respectively in response to a force exerted in a direction perpendicular to the plane of the plates 108, 110 and layers 106, and parallel to the plane of these plates and layers.

Les bielles supérieure et inférieure 91 et 92 comprennent chacune un prolongement latéral respectivement 112 et 114, définissant des surfaces d'appui en vis-à-vis respectivement 116 et 118, pour l'organe élastique 102. L'organe élastique 102 est pris entre les surfaces 116 et 118. Ces surfaces 116 et 118 sont parallèles l'une à l'autre, les plaques d'extrémité 110 étant plaquées sur les surfaces d'appui et rigidement fixées à celles-ci.The upper and lower connecting rods 91 and 92 each comprise a lateral extension respectively 112 and 114, defining bearing surfaces facing each other respectively 116 and 118, for the elastic member 102. The elastic member 102 is between the surfaces 116 and 118. These surfaces 116 and 118 are parallel to each other, the end plates 110 being pressed onto the bearing surfaces and rigidly fixed thereto.

Les surfaces d'appui 116 et 118 sont orientées de telle sorte que l'axe de compression de l'organe élastique 102 forme, en position de référence, un angle β compris entre 0° et 90° par rapport à l'axe passant par les premiers points de liaison 94 et 96 des deux bielles. De préférence, l'angle β est compris entre 20° et 50°, et vaut typiquement 30°.The bearing surfaces 116 and 118 are oriented such that the axis of compression of the elastic member 102 forms, in the reference position, an angle β of between 0 ° and 90 ° with respect to the axis passing through the first connection points 94 and 96 of the two connecting rods. Preferably, the angle β is between 20 ° and 50 °, and is typically 30 °.

Les deux bielles 91 et 92 sont liées à la boîte d'essieu 32 du bogie par leurs seconds points de liaison respectifs 98 et 100 par l'intermédiaire d'articulations élastiques cylindriques. Les deux bielles sont liées au longeron 52 à leurs premiers points de liaison respectifs 94 et 96 également par des articulations élastiques cylindriques.The two connecting rods 91 and 92 are connected to the axle box 32 of the bogie by their respective second connection points 98 and 100 via cylindrical elastic joints. The two connecting rods are connected to the spar 52 at their respective first connection points 94 and 96 also by cylindrical elastic joints.

Les bielles 91 et 92 comportent à chacun des points de liaison 94, 96, 98 et 100 un bout d'axe transversal 120 engagé dans un orifice cylindrique 122 ménagé, selon les cas, soit dans la boîte d'essieu 32, soit dans le longeron 52 (voir figure 13). Un manchon élastique 124, par exemple en caoutchouc naturel ou synthétique, de forme cylindrique, est interposé entre le bout d'axe 120 et la paroi périphérique de l'orifice 122. Le bout d'axe 120, l'orifice 122 et le manchon 124 sont coaxiaux, d'axe transversal. Le manchon 124 adhère par une face interne au bout d'axe 120 et par une face externe à la paroi périphérique de l'orifice 122.The rods 91 and 92 comprise at each of the connection points 94, 96, 98 and 100 a cross-axis end 120 engaged in a cylindrical orifice 122 provided, as the case may be, either in the axle box 32 or in the spar 52 (see figure 13 ). An elastic sleeve 124, for example made of natural or synthetic rubber, of cylindrical shape, is interposed between the end of axis 120 and the peripheral wall of the orifice 122. The axis end 120, the orifice 122 and the sleeve 124 are coaxial, of transverse axis. The sleeve 124 adheres by an inner face to the end of axis 120 and by an outer face to the peripheral wall of the orifice 122.

Chaque dispositif de suspension primaire 33 est situé, au repos comme en charge, entièrement sous un niveau au-dessus du plan de roulement du bogie compris entre 200 mm et 400 mm, de préférence compris entre 250 mm et 350 mm et valant typiquement 300 mm pour des roues ayant leurs diamètres à neuf de 590 mm.Each primary suspension device 33 is located, at rest as well as under load, entirely under a level above the running surface of the bogie of between 200 mm and 400 mm, preferably between 250 mm and 350 mm and being typically 300 mm. for wheels having their diameters to nine of 590 mm.

Le fonctionnement du dispositif de suspension primaire ci-dessus va maintenant être brièvement décrit en liaison avec la figure 12.The operation of the above primary suspension device will now be briefly described in connection with the figure 12 .

Sous l'effet d'une charge ou d'un défaut de voie qui fait remonter la roue 24, les bielles 91 et 92 entraînent la boite d'essieu 32 dans un mouvement vertical. L'ensemble constitué par le longeron 52, les deux bielles 91 et 92 et la boite d'essieu 32, liés par les points de liaison 94, 96, 98 et 100 constitue un parallélogramme déformable.Under the effect of a load or a track fault which causes the wheel 24 to rise, the connecting rods 91 and 92 drive the axle box 32 in a vertical movement. The assembly consisting of the spar 52, the two connecting rods 91 and 92 and the axle box 32, linked by the connection points 94, 96, 98 and 100 constitutes a deformable parallelogram.

Quand la roue subit un effort vertical F de bas en haut, dans le cas d'un défaut de voie par exemple, les bielles 91 et 92 reprennent chacune une fraction de l'effort F à leurs seconds points de liaison respectifs 98 et 100, du fait que ces premiers points de liaison sont placés de manière symétrique par rapport à l'essieu. La répartition de l'effort F entre les deux bielles 91 et 92 est fonction de la position du bloc élastique entre les points 94 et 96.When the wheel undergoes a vertical force F from bottom to top, in the case of a defect of track for example, the connecting rods 91 and 92 each take up a fraction of the effort F at their second respective connection points 98 and 100, because these first connection points are placed symmetrically with respect to the axle. The distribution of the force F between the two connecting rods 91 and 92 is a function of the position of the elastic block between the points 94 and 96.

Sous l'effet de cet effort, les bielles 91 et 92 pivotent vers le haut par rapport au longeron 52 autour des premiers points de liaison 94 et 96, c'est-à-dire dans le sens horaire sur la figure 12. Sous l'effet de ces pivotements, les surfaces d'appui 116 et 118 tendent à se rapprocher. Dans l'exemple de réalisation de la figure 12, pour lequel l'angle β vaut environ 30°, le pivotement des bielles 91 et 92 conduit à exercer sur l'organe élastique 102 à la fois un effort de compression et un effort de cisaillement. Pour un angle β de 90°, l'organe élastique travaille en compression pure. Pour un angle β de 0°, l'organe élastique travaille en cisaillement pur.As a result of this effort, the connecting rods 91 and 92 pivot upwards with respect to the spar 52 around the first connection points 94 and 96, that is to say in a clockwise direction on the figure 12 . Under the effect of these pivoting, the bearing surfaces 116 and 118 tend to get closer. In the exemplary embodiment of the figure 12 , for which the angle β is about 30 °, the pivoting of the connecting rods 91 and 92 leads to exert on the elastic member 102 both a compressive force and a shear force. For an angle β of 90 °, the elastic member works in pure compression. For an angle β of 0 °, the elastic member works in pure shear.

Parallèlement, les bielles 91 et 92 pivotent par rapport à la boîte d'essieu 32 autour des seconds points de liaison 98 et 100, qui se déplacent verticalement vers le haut comme la figure 12 le représente en traits mixtes. Bien entendu, la boite d'essieu 32 et son sommet 104 subissent également un mouvement vertical vers le haut, mais qui n'est pas représenté sur la figure 12. Les bielles 91 et 92 pivotent dans le sens horaire sur la figure 12 par rapport à la boîte d'essieu 32 et restent à un niveau inférieur au sommet 104 de la boite d'essieu, qui s'est déplacé vers le haut.At the same time, the connecting rods 91 and 92 pivot with respect to the axle box 32 around the second connection points 98 and 100, which move vertically upwards like the figure 12 represents it in phantom. Of course, the axle box 32 and its top 104 also undergo a vertical upward movement, but which is not shown on the figure 12 . The connecting rods 91 and 92 rotate clockwise on the figure 12 relative to the axle box 32 and remain at a level below the top 104 of the axle box, which has moved upwards.

Le pivotement des bielles 91 et 92 entraîne une torsion, pour chaque bielle, des manchons élastiques 124 du premier point de liaison et également du second point de liaison.The pivoting of the connecting rods 91 and 92 causes torsion, for each connecting rod, elastic sleeves 124 of the first point of connection and also the second point of connection.

De manière à permettre le montage des bielles 91 et 92 sur le châssis, les parties d'extrémité avant et arrière 56 et 58 de chaque longeron sont conformées en fourches. Chacune de ces parties d'extrémité est divisée en deux flasques 125 disposés en vis-à-vis (figure 3). Les flasques 125 sont sensiblement perpendiculaires à la direction transversale. Les bielles 91 et 92 sont montées par leurs points de liaison respectifs 94 et 96 entre les flasques 125.In order to allow the connecting rods 91 and 92 to be mounted on the frame, the front and rear end portions 56 and 58 of each spar are shaped as forks. Each of these end portions is divided into two flanges 125 arranged opposite each other ( figure 3 ). The flanges 125 are substantially perpendicular to the transverse direction. The connecting rods 91 and 92 are mounted by their respective connection points 94 and 96 between the flanges 125.

Comme le montre la figure 1, le châssis de caisse 14 présente une première partie surélevée 126 au droit des roues avant et arrière droites, une seconde partie surélevée 128 au droit des roues avant et arrière gauches, et une partie basse 130 entre les première et seconde parties surélevées 126 et 128. Les parties surélevées 126 et 128 s'étendent, parallèlement à la direction principale, sur toute la longueur du bogie. Perpendiculairement à la direction principale, la partie 126 présente une largeur suffisante pour couvrir le moteur avant 28, le réducteur avant 38, l'accouplement avant 40, le frein arrière 35, les roues avant 24 et arrière 26 droites. La partie surélevée 126 couvre également une grande partie du longeron droit 52.As shown in figure 1 , the body frame 14 has a first raised portion 126 to the right front and rear right wheels, a second raised portion 128 to the right of the left front and rear wheels, and a lower portion 130 between the first and second raised portions 126 and 128 The raised portions 126 and 128 extend, parallel to the main direction, along the entire length of the bogie. Perpendicular to the main direction, the portion 126 has a width sufficient to cover the front engine 28, the front gearbox 38, the front coupling 40, the rear brake 35, the front wheels 24 and rear 26 straight. The raised portion 126 also covers a large portion of the right spar 52.

La partie surélevée 128 présente la même largeur que la partie 126 et, de manière symétrique, couvre le moteur arrière 30, le réducteur arrière 48, l'accouplement arrière 50, le frein avant 35, les roues avant 24 et arrière 26 gauches et une grande partie du longeron gauche 52.The raised portion 128 has the same width as the portion 126 and, symmetrically, covers the rear engine 30, the rear gear 48, the rear coupling 50, the front brake 35, the front wheels 24 and rear 26 left and much of the left spar 52.

La partie basse 130 forme un couloir de circulation à l'intérieur de la caisse, ce couloir étant sensiblement parallèle à la direction principale. Le couloir 130, considéré dans un plan perpendiculaire à la direction principale, s'étend au milieu de la caisse, c'est-à-dire à mi-distance des deux parois latérales de la caisse.The lower part 130 forms a circulation corridor inside the box, this corridor being substantially parallel to the main direction. The corridor 130, considered in a plane perpendicular to the main direction, extends in the middle of the body, that is to say halfway between the two side walls of the body.

Le plancher 132 du couloir de circulation est situé à un niveau de sensiblement 480 mm par rapport au plan de roulement du bogie, en considérant que les roues du bogie possèdent leur diamètre à neuf. Comme visible sur la figure 1, le châssis, les essieux, les boîtes d'essieux, les organes de suspension primaires, la traverse danseuse et les organes de suspension secondaires sont tous entièrement situés à un niveau inférieure à celui du plancher 132. Ce résultat est obtenu grâce à l'utilisation de dispositifs de suspension primaires bas tels que décrits ci-dessus.The floor 132 of the traffic corridor is located at a level of substantially 480 mm with respect to the rolling plane of the bogie, considering that the wheels of the truck have their diameter to nine. As visible on the figure 1 , the chassis, the axles, the axle boxes, the primary suspension members, the bolster and the secondary suspension members are all entirely located at a level lower than that of the floor 132. This result is obtained thanks to the use of low primary suspension devices as described above.

Le couloir 130 présente une largeur, perpendiculairement à la direction principale, de 800 mm environ. Il recouvre légèrement les deux longerons 52. Toutefois, un écartement significatif est prévu entre les parois latérales 134 de la partie basse 130 et les roues 24 et 26, de manière à permettre le débattement en rotation du bogie par rapport à la caisse.The corridor 130 has a width, perpendicular to the main direction, of about 800 mm. It covers slightly the two longitudinal members 52. However, a significant separation is provided between the side walls 134 of the lower part 130 and the wheels 24 and 26, so as to allow the rotational movement of the bogie relative to the body.

Comme le montre la figure 2, chacune des parties surélevées 126 et 128 comporte, considérée d'avant en arrière, des zones de niveaux différents. Plus précisément, chaque partie comporte d'abord une zone de niveau moyen 138, puis une zone 140 de niveau plus élevé que la zone 138, puis une zone 142 de niveau plus faible que la zone 138, puis une zone 144 de même niveau que la zone 140 et enfin une zone 146 de même niveau que la zone 138. La zone 142 s'étend au droit d'un plateau 68 de la traverse danseuse et d'un des moteurs. Elle est située à un niveau intermédiaire entre celui du plateau 68 et le sommet des roues 24 et 26.As shown in figure 2 each of the raised portions 126 and 128 includes, from front to back, areas of different levels. More specifically, each part comprises first a medium level zone 138, then a higher level zone 140 than the zone 138, then a lower level zone 142 than the zone 138, then a zone 144 of the same level as the zone 140 and finally a zone 146 of the same level as the zone 138. The zone 142 extends in line with a plate 68 of the bolster and one of the engines. It is located at an intermediate level between that of the plate 68 and the top of the wheels 24 and 26.

Au contraire, les zones 138, 140, 144 et 146 sont toutes situées à un niveau supérieur à celui du sommet des roues.On the contrary, the zones 138, 140, 144 and 146 are all located at a level higher than that of the top of the wheels.

Comme on le comprend en considérant les figures 1 et 2, deux sièges 20 sont fixés côte à côte dans chacune des zones 138, 140, 144 et 146. Les sièges des zones 140 et 144 se font face, la zone 142 permettant aux passagers assis sur ces sièges de poser leurs pieds. Les sièges des zones 138 et 140 sont disposés dos à dos, de même que les sièges des zones 144 et 146.As is understood by considering the figures 1 and 2 two seats 20 are fixed side by side in each of the zones 138, 140, 144 and 146. The seats of the zones 140 and 144 face each other, the zone 142 allowing the passengers sitting on these seats to rest their feet. The seats of zones 138 and 140 are arranged back to back, as are the seats of zones 144 and 146.

La couronne 62 est fixée sous le plancher 132 du couloir. La face 148 du plancher 132 tournée vers le sol présente, considérée perpendiculairement à la direction principale, un profil suivant sensiblement celui de la traverse danseuse.The ring 62 is fixed under the floor 132 of the corridor. The face 148 of the floor 132 facing the ground present, considered perpendicular to the main direction, a profile substantially following that of the sleeper cross.

La figure 4 illustre une première variante de réalisation non motorisée du bogie des figures 1 à 3. Seules les différences avec le bogie décrit précédemment seront précisées ici. Les éléments identiques, ou assurant la même fonction, seront désignés par les mêmes numéros de référence.The figure 4 illustrates a first non-motorized variant embodiment of the bogie of Figures 1 to 3 . Only the differences with the bogie described above will be specified here. Identical elements, or performing the same function, will be designated by the same reference numbers.

Ce bogie ne comporte pas les moteurs avant et arrière 28 et 30, ni les réducteurs avant et arrière 38 et 48, ni les accouplements 40 et 50. Il comporte en revanche deux freins 35 supplémentaires, disposés à la place des réducteurs avant et arrière 38 et 48. Le bogie dispose donc, pour chaque essieu, de deux freins 35 disposés vers l'extérieur du bogie par rapport aux roues.This bogie does not include the front and rear engines 28 and 30, nor the front and rear gearboxes 38 and 48, nor the couplings 40 and 50. It has, however, two additional brakes 35, arranged instead of the front and rear reducers 38 and 48. The bogie therefore has, for each axle, two brakes 35 disposed towards the outside of the bogie with respect to the wheels.

Le niveau du couloir de circulation, sa largeur, et l'agencement des sièges 20 au droit du bogie dans la caisse sont identiques pour cette variante à ce qui a été décrit plus haut en référence au mode de réalisation des figures 1 à 3.The level of the traffic corridor, its width, and the arrangement of the seats 20 to the bogie in the body are identical for this variant to what has been described above with reference to the embodiment of the Figures 1 to 3 .

Les figures 5 et 6 illustrent une seconde variante de réalisation non pivotante du bogie des figures 1 à 3. Seules les différences par rapport au bogie des figures 1 à 3 seront détaillées ici, les éléments identiques, ou assurant la même fonction, étant désignés par les mêmes références.The figures 5 and 6 illustrate a second variant of non-pivoting embodiment of the bogie Figures 1 to 3 . Only the differences compared to the bogie Figures 1 to 3 will be detailed here, the identical elements, or providing the same function, being designated by the same references.

Le bogie 16 est dépourvu de traverse danseuse 60 et de couronne 62. Les moyens 34 de liaison entre le bogie et la caisse comprennent en revanche des plateaux de support 149 rigidement fixés au châssis de caisse 14 et interposés entre les organes de suspension secondaires 64 et le châssis de caisse 14. Le bogie est ainsi non pivotant, au sens où ses moyens de liaison à la caisse n'autorisent qu'un pivotement très limité autour d'un axe perpendiculaire au plan de roulement, généralement inférieur à 2°.The bogie 16 has no bolster 60 and a crown 62. The connection means 34 between the bogie and the body instead comprise support plates 149 rigidly fixed to the body frame 14 and interposed between the secondary suspension members 64 and 14. The bogie is thus non-pivoting, in the sense that its connection means to the body allow only a very limited pivoting about an axis perpendicular to the running surface, generally less than 2 °.

Du fait de la très faible amplitude du débattement possible entre le bogie et la caisse, les parois latérales 134 du couloir de circulation peuvent être disposées beaucoup plus près des roues que dans le mode de réalisation des figures 1 à 3, correspondant à un bogie pivotant. Dans ce cas, la partie surbaissée 130 du châssis de caisse recouvre une grande partie des longerons 52, et présente une largeur, perpendiculairement à la direction principale, de sensiblement un mètre. Le plancher 132 est ici encore situé à un niveau de 480 mm par rapport au plan de roulement du bogie, pour des roues présentant leur diamètre à neuf.Due to the very small amplitude of the possible travel between the bogie and the body, the side walls 134 of the circulation lane can be arranged much closer to the wheels than in the embodiment of the Figures 1 to 3 , corresponding to a swiveling bogie. In this case, the lowered portion 130 of the body frame covers a large portion of the longitudinal members 52, and has a width, perpendicular to the main direction, of substantially one meter. The floor 132 is again located at a level of 480 mm with respect to the running surface of the bogie, for wheels having their diameter to nine.

Un second mode de réalisation de l'invention va maintenant être décrit relativement aux figures 7 à 9. Les éléments identiques ou assurant la même fonction que dans le premier mode de réalisation seront désignés par les mêmes que dans le premier mode de réalisation seront désignés par les mêmes numéros de référence.A second embodiment of the invention will now be described with respect to Figures 7 to 9 . The identical elements or performing the same function as in the first embodiment will be designated by the same that in the first embodiment will be designated by the same reference numbers.

Seuls les points par lesquels le second mode de réalisation diffère du premier vont être détaillés ci-dessous.Only the points by which the second embodiment differs from the first will be detailed below.

Chaque bogie 16 comporte un moteur unique 150 apte à entraîner à la fois les roues avant et des roues arrière. Le réducteur avant 38 est accouplé à l'arbre du moteur unique 150 par l'intermédiaire de l'accouplement avant 40, le réducteur arrière 48 étant accouplé à l'arbre du moteur 150 par l'intermédiaire de l'accouplement arrière 50.Each bogie 16 comprises a single engine 150 able to drive both the front wheels and rear wheels. The forward gearbox 38 is coupled to the single motor shaft 150 through the front coupling 40, the rear gearbox 48 being coupled to the motor shaft 150 through the rear coupling 50.

Le moteur 150, les réducteurs 38 et 48 et les accouplements 40 et 50 sont disposés entre, d'une part, un plan P1 longitudinal médian des roues avant 24 et médian des roues arrière 26 et, d'autre part, un plan P2 passant par les roues droites avant et arrière 24 et 26 (voir figure 7). Ainsi, le moteur 150, les réducteurs 38 et 48 et les accouplements 40 et 50 sont tous disposés du côté droit du bogie, vers l'intérieur du bogie par rapport aux roues. Les réducteurs 38 et 48 sont placés respectivement immédiatement à l'intérieur des roues droites avant 24 et arrière 26.The motor 150, the gearboxes 38 and 48 and the couplings 40 and 50 are arranged between, on the one hand, a median longitudinal plane P1 of the front wheels 24 and median of the rear wheels 26 and, on the other hand, a passing plane P2. by the front and rear wheels 24 and 26 (see figure 7 ). Thus, the motor 150, the reducers 38 and 48 and the couplings 40 and 50 are all arranged on the right side of the bogie, towards the inside of the bogie with respect to the wheels. The reducers 38 and 48 are respectively placed immediately inside the front wheels 24 and rear 26.

Comme le montre la figure 9, les réducteurs 38 et 48 jouent le rôle de boîtes d'essieux et comprennent des moyens de guidage en rotation respectivement des essieux avant et arrière 36 et 46, tels que des roulements à billes. La sortie du réducteur 38 est fixée directement à la roue avant droite 24 ou à l'essieu avant 36. De même, la sortie du réducteur arrière 48 est fixée directement à la roue arrière 26 ou à l'essieu arrière 46.As shown in figure 9 the gear units 38 and 48 act as axle boxes and comprise means for respectively rotating the front and rear axles 36 and 46, such as ball bearings. The output of the gearbox 38 is fixed directly to the right front wheel 24 or to the front axle 36. Likewise, the output of the rear gearbox 48 is fixed directly to the rear wheel 26 or to the rear axle 46.

Les réducteurs 38 et 48, les accouplements 40 et 50, et le moteur 150 sont alignés longitudinalement. Le moteur 150 est placé longitudinalement entre les réducteurs 38 et 48, les accouplements 40 et 50 étant respectivement interposés entre le réducteur 38 et le moteur 150 et entre le réducteur arrière 48 et le moteur 150.Gearheads 38 and 48, couplings 40 and 50, and motor 150 are aligned longitudinally. The motor 150 is placed longitudinally between the gearboxes 38 and 48, the couplings 40 and 50 being respectively interposed between the gearbox 38 and the motor 150 and between the rear gearbox 48 and the motor 150.

Les accouplements 40 et 50 comprennent chacun un arbre de transmission d'orientation longitudinale, lié en rotation par des cardans à l'arbre du moteur 150 et à l'entrée du réducteur 38 ou 48.Couplings 40 and 50 each comprise a longitudinally oriented transmission shaft, rotatably connected by gimbals to the motor shaft 150 and to the inlet of the gearbox 38 or 48.

Le moteur 150 est équidistant des essieux 36 et 46. Par ailleurs, les positions des réducteurs avant et arrière 38 et 48 sont symétriques l'une de l'autre par rapport à un plan transversal P3, médian des roues avant et arrière 24 et 26. Comme le montre la figure 8, le plan P3 est équidistant des essieux 36 et 46. De même, les positions des accouplements 40 et 50 sont symétriques l'une de l'autre par rapport au plan P3.The motor 150 is equidistant from the axles 36 and 46. Furthermore, the positions of the front and rear gearboxes 38 and 48 are symmetrical to one another by relative to a transverse plane P3, median of the front and rear wheels 24 and 26. As shown in figure 8 , the plane P3 is equidistant from the axles 36 and 46. Similarly, the positions of the couplings 40 and 50 are symmetrical to one another with respect to the plane P3.

Les réducteurs avant et arrière 38 et 48 sont différents l'un de l'autre et sont choisis de manière à entraîner les roues avant et arrière dans un même sens de rotation.The front and rear reducers 38 and 48 are different from each other and are chosen so as to drive the front and rear wheels in the same direction of rotation.

Le bogie 16 est dissymétrique, le longeron droit 52 étant différent du longeron gauche 52, et les dispositifs de suspension primaires 33 associés aux roues droites étant différents des dispositifs de suspension primaires 33 associés aux roues gauches.The bogie 16 is asymmetrical, the right spar 52 being different from the left spar 52, and the primary suspension devices 33 associated with the right wheels being different from the primary suspension devices 33 associated with the left wheels.

Comme le montrent les figures 8 et 9, le longeron droit 52 comporte une partie centrale basse 152 s'étendant le long du moteur 150, et deux parties d'extrémité surélevées 154 et 156.As shown by figures 8 and 9 the right spar 52 has a low central portion 152 extending along the engine 150, and two raised end portions 154 and 156.

Le longeron gauche 52, les traverses 54 et la partie basse 152 du longeron droit sont disposés dans un même plan sensiblement parallèle au plan de roulement du bogie. La partie 152 est disposée vers l'extérieur du bogie par rapport au moteur 150. Elle s'étend longitudinalement d'une traverse 54 à l'autre. Le moteur 150 est rigidement fixé à la partie 152. Son arbre moteur est situé au niveau de l'axe des essieux 36 et 46, à un niveau intermédiaire entre la partie 152 et les parties d'extrémité 154 et 156.The left spar 52, the cross members 54 and the lower portion 152 of the right spar are arranged in the same plane substantially parallel to the rolling plane of the bogie. The portion 152 is disposed outwardly of the bogie relative to the engine 150. It extends longitudinally from a cross member 54 to the other. The motor 150 is rigidly attached to the portion 152. Its drive shaft is located at the axis of the axles 36 and 46, at an intermediate level between the portion 152 and the end portions 154 and 156.

Les parties d'extrémité surélevées 154 et 156 du longeron droit s'étendent longitudinalement, au-dessus respectivement du réducteur avant 38 et du réducteur arrière 48. Les parties 154 et 156 sont rigidement fixées à la partie centrale 152 par des pieds 158.The raised end portions 154 and 156 of the right spar extend longitudinally, respectively above the front gearbox 38 and the rear gearbox 48. The portions 154 and 156 are rigidly secured to the central portion 152 by feet 158.

Les dispositifs de suspension primaires 33 associés aux roues droites avant et arrière comprennent chacun deux organes de suspension primaires 160 du type sandwich caoutchouc/métal (figures 8 et 9). De tels sandwichs sont décrits dans FR-1 536 401 . Chaque organe comprend une pluralité de couches d'un matériau élastique tel que du caoutchouc, et une pluralité de plaques métalliques interposées entre les couches de matériau élastique et adhérentes à ces couches. Chacun des organes 160 est conformé en chevrons.The primary suspension devices 33 associated with the front and rear right wheels each comprise two primary suspension members 160 of the rubber / metal sandwich type ( figures 8 and 9 ). Such sandwiches are described in FR-1 536 401 . Each member comprises a plurality of layers of an elastic material such as rubber, and a plurality of metal plates interposed between the layers of elastic material and adherent to these layers. Each of the members 160 is shaped in chevrons.

Les organes 160 du dispositif de suspension primaire associé à la roue arrière droite sont interposés entre la partie surélevée arrière 156 du longeron droit et le réducteur arrière 48. L'un des organes 160 est situé à l'avant de l'essieu 46, et l'autre à l'arrière de l'essieu 46.The members 160 of the primary suspension device associated with the right rear wheel are interposed between the rear raised portion 156 of the right spar and the rear reduction gear 48. One of the members 160 is located at the front of the axle 46, and the other at the rear of the axle 46.

De même, dans le dispositif de suspension primaire associé à la roue avant droite, les organes 160 sont interposés entre la partie surélevée avant 154 du longeron droit et le réducteur avant 38. L'un des organes de suspension primaire est situé à l'avant de l'essieu 36 et l'autre à l'arrière de l'essieu 36.Similarly, in the primary suspension device associated with the right front wheel, the members 160 are interposed between the raised portion before 154 of the right spar and the front reduction gear 38. One of the primary suspension members is located at the front of the axle 36 and the other at the rear of the axle 36.

Le longeron gauche 52 du châssis est semblable aux longerons du châssis du premier mode de réalisation de l'invention. Les dispositifs de suspension primaires 33 associés aux roues avant et arrière gauches sont des dispositifs bas identiques aux dispositifs de suspension primaires du premier mode de réalisation de l'invention. Ils sont interposés entre les parties d'extrémité 56 et 58 du longeron gauche et les boîtes d'essieu 32 des roues gauches, comme décrit précédemment. Chaque dispositif bas 33 est situé au repos entièrement sous un niveau au-dessus du plan de roulement du bogie compris entre 200 mm et 400 mm, de préférence compris entre 250 mm et 350 mm, et valant typiquement 300 mm, pour des roues ayant leurs diamètres à neuf de 590 mm.The left spar 52 of the chassis is similar to the longitudinal members of the frame of the first embodiment of the invention. The primary suspension devices 33 associated with the left front and rear wheels are low devices identical to the primary suspension devices of the first embodiment of the invention. They are interposed between the end portions 56 and 58 of the left spar and the axle boxes 32 of the left wheels, as previously described. Each lower device 33 is located at rest entirely below a level above the running surface of the bogie of between 200 mm and 400 mm, preferably between 250 mm and 350 mm, and typically equal to 300 mm, for wheels having their new diameters of 590 mm.

Le bogie comporte typiquement quatre organes de suspension secondaires 162 comprenant chacun un ressort hélicoïdal interposé entre le châssis de bogie 22 et le châssis de caisse 14. Les quatre organes de suspension secondaires 162 sont disposés de manière symétrique par rapport au plan longitudinal P1 et par rapport au plan P3. Deux organes 162 sont placés du côté droit du bogie vers l'extérieur du bogie par rapport aux roues droites 24 et 26. Les deux autres ressorts hélicoïdaux sont disposés du côté gauche du bogie vers l'extérieur de ce bogie par rapport aux roues gauches 24 et 26. Les organes de suspension secondaires 162 sont situés longitudinalement entre les roues avant 24 et les roues arrière 26. Ils présentent verticalement sensiblement le même encombrement que le moteur 150 et sont situés au même niveau que celui-ci par rapport au plan de roulement (voir figure 7).The bogie typically comprises four secondary suspension members 162 each comprising a helical spring interposed between the bogie frame 22 and the body frame 14. The four secondary suspension members 162 are arranged symmetrically with respect to the longitudinal plane P1 and relative to each other. on plane P3. Two members 162 are placed on the right side of the bogie towards the outside of the bogie relative to the right wheels 24 and 26. The two other coil springs are arranged on the left side of the bogie toward the outside of this bogie with respect to the left wheels. and 26. The secondary suspension members 162 are located longitudinally between the front wheels 24 and the rear wheels 26. They have substantially the same vertical dimensions as the engine 150 and are situated at the same level as the latter with respect to the running surface. (see figure 7 ).

Les freins avant et arrière 35 sont des freins à disque du même type que ceux décrits relativement au premier mode de réalisation de l'invention.The front and rear brakes 35 are disc brakes of the same type as those described with respect to the first embodiment of the invention.

Ces freins sont disposés du côté gauche du bogie, vers l'extérieur du bogie par rapport aux roues avant et arrière gauches 24 et 26. Ils sont disposés dans le prolongement transversal des essieux avant et arrière 36 et 46.These brakes are arranged on the left side of the bogie, towards the outside of the bogie relative to the left front and rear wheels 24 and 26. They are arranged in the transverse extension of the front and rear axles 36 and 46.

Le bogie comprend un amortisseur transversal 164 et deux amortisseurs verticaux 166, tous interposés entre le châssis de bogie 22 et le châssis de caisse 14. Il comprend également une bielle rigide longitudinale 168 apte à transmettre les efforts entre le châssis de bogie et le châssis de caisse. Par ailleurs, le mécanisme 90 d'actionnement des étriers de freins est lié au châssis de bogie par l'intermédiaire des bielles 174.The bogie comprises a transverse damper 164 and two vertical dampers 166, all interposed between the bogie frame 22 and the body frame 14. It also comprises a rigid longitudinal rod 168 capable of transmitting the forces between the bogie frame and the chassis of the truck. checkout. Furthermore, the mechanism 90 for actuating the brake calipers is connected to the bogie frame via the connecting rods 174.

Comme le montre la figure 7, la partie surélevée droite 126 du châssis de caisse couvre les organes de suspension secondaires 162, les roues droites avant et arrière, le moteur 150, les réducteurs avant et arrière 38 et 48 et les accouplements avant et arrière 40 et 50.As shown in figure 7 , the raised right portion 126 of the body frame covers the secondary suspension members 162, the front and rear straight wheels, the engine 150, the front and rear gearboxes 38 and 48 and the front and rear couplings 40 and 50.

La partie surélevée gauche 128 couvre seulement les organes de suspension secondaires 162, les roues gauches avant et arrière et les freins avant et arrière 35.The left elevated portion 128 covers only the secondary suspension members 162, the left front and rear wheels and the front and rear brakes 35.

Considérée perpendiculairement à la direction transversale, la première partie surélevée 126 est relativement plus large que la seconde partie surélevée 128. Le couloir de circulation 130 est de ce fait décalé transversalement vers la partie surélevée gauche 128 par rapport au plan P4 médian de la caisse 12 et s'étendant parallèlement à la direction principale.Considered perpendicular to the transverse direction, the first raised portion 126 is relatively wider than the second raised portion 128. The circulation corridor 130 is thereby shifted transversely to the left elevated portion 128 relative to the median plane P4 of the body 12 and extending parallel to the main direction.

Le plancher 132 du couloir de circulation est situé à un niveau de 480 mm environ par rapport au plan de roulement du bogie, en considérant le diamètre à neuf des roues. Le couloir de circulation 130 s'étend pratiquement, considéré dans un plan perpendiculaire à la direction principale de la caisse, depuis les réducteurs 38 et 48 jusqu'aux roues gauches. Il présente une largeur de 900 mm environ.The floor 132 of the traffic corridor is located at a level of about 480 mm with respect to the running surface of the bogie, considering the diameter at nine wheels. The circulation corridor 130 extends substantially, considered in a plane perpendicular to the main direction of the body, from the gearboxes 38 and 48 to the left wheels. It has a width of about 900 mm.

Comme dans le premier mode de réalisation de l'invention, chacune des parties surélevées du châssis de caisse comprend des zones 138 à 146 de niveaux différents, permettant d'agencer seize sièges au droit du bogie.As in the first embodiment of the invention, each of the raised parts of the body frame comprises zones 138 to 146 of different levels, to arrange sixteen seats to the right of the bogie.

La figure 10 illustre une variante de réalisation pivotante du bogie des figures 7 à 9. Seules les différences avec le bogie des figures 7 à 9 seront précisées ici. Les éléments identiques, ou assurant la même fonction, seront désignés par les mêmes numéros de référence.The figure 10 illustrates a pivotal variant embodiment of the bogie Figures 7 to 9 . Only the differences with the bogie Figures 7 to 9 will be specified here. Identical elements, or performing the same function, will be designated by the same reference numbers.

Le bogie 16 comprend des moyens de liaison pivot 176 aptes à lier le bogie à la caisse 12. Les moyens 176 comportent une traverse danseuse transversale 178 et un pivot 180 interposé entre la traverse 178 et le châssis de caisse 14. Le pivot 180 présente un axe de rotation sensiblement perpendiculaire au plan de roulement du bogie.The bogie 16 comprises pivot connection means 176 capable of binding the bogie to the body 12. The means 176 comprise a transverse dancer cross member 178 and a pivot 180 interposed between the cross member 178 and the body frame 14. The pivot 180 has a axis of rotation substantially perpendicular to the rolling plane of the bogie.

La traverse 178 présente une forme en berceuse similaire à celle de la traverse 60 du premier mode de réalisation. Les parties d'extrémité surélevées 182 de la traverse danseuse sont conformées en plateau. Les organes de suspension secondaires 162 sont interposés entre les plateaux 182 et le châssis 22. Le pivot 180 est lié à la partie centrale basse 184 de la traverse danseuse.The cross member 178 has a lullaby shape similar to that of the cross member 60 of the first embodiment. The raised end portions 182 of the bolster are shaped as a tray. The secondary suspension members 162 are interposed between the plates 182 and the frame 22. The pivot 180 is connected to the lower central portion 184 of the bolster.

Le plancher 132 du couloir 130 est situé à un niveau d'environ 520 mm au-dessus du plan de roulement du bogie, en considérant le diamètre à neuf des roues. Le couloir 130 présente une largeur de 660 mm seulement environ, perpendiculairement à la direction principale de la caisse, de manière à laisser entre les parois latérales 134 du couloir et les organes du bogie un espace libre autorisant le débattement en rotation du bogie par rapport à la caisse.The floor 132 of the corridor 130 is located at a level of about 520 mm above the rolling plane of the bogie, considering the diameter of the nine wheels. The corridor 130 has a width of only about 660 mm, perpendicular to the main direction of the body, so as to leave between the side walls 134 of the corridor and the bogie organs a free space allowing the rotational movement of the bogie relative to the box.

Les bogies décrits ci-dessus présentent de multiples avantages.The bogies described above have multiple advantages.

L'utilisation d'une suspension primaire basse permet d'aménager dans le châssis de caisse un couloir de circulation bas, particulièrement large, même quand le bogie est monté par des moyens de liaison pivot sous la caisse.The use of a low primary suspension makes it possible to arrange in the body frame a low, particularly wide traffic corridor, even when the bogie is mounted by pivot connection means under the body.

Du fait que les réducteurs présentent des sorties fixées directement sur les roues, les accouplements avant et arrière sont disposés longitudinalement entre les moteurs et les réducteurs. L'encombrement transversal des transmissions du moteur vers les roues en est diminué.Since the gearboxes have outlets fixed directly to the wheels, the front and rear couplings are arranged longitudinally between the motors and gearboxes. The transverse size of the transmissions from the engine to the wheels is reduced.

Par ailleurs, les arbres de sortie des moteurs sont longitudinaux, ce qui permet de réduire la pignonerie des réducteurs par rapport au cas où les moteurs présentent des arbres de sortie transversaux.In addition, the output shafts of the motors are longitudinal, which reduces gear gearboxes compared to the case where the motors have transverse output shafts.

Du fait que les suspensions primaires sont placées à l'intérieur du bogie par rapport aux roues, il est possible de faire descendre les parois latérales de la caisse sensiblement jusqu'à l'axe des roues, voire plus bas, tout en leur conférant un galbe. Comme le montrent les figures 1 et 7, les parois ne sont pas planes mais, au contraire, sont légèrement bombées vers l'extérieur de la caisse. Par ailleurs, cette disposition des suspensions primaires facilite l'accès aux roues et aux disques de frein, en vue de leur maintenance ou de leur remplacement.Because the primary suspensions are placed inside the bogie relative to the wheels, it is possible to lower the side walls of the body substantially to the axis of the wheels, or lower, while giving them a curved. As shown by figures 1 and 7 , the walls are not flat but, on the contrary, are slightly curved towards the outside of the box. Otherwise, this arrangement of the primary suspensions facilitates access to the wheels and brake discs, for maintenance or replacement.

Dans le premier mode de réalisation de l'invention, le fait que les moteurs et les réducteurs soient placés vers l'extérieur du bogie par rapport aux roues, et le fait que le châssis et les boîtes d'essieux soient disposés dans un même plan sensiblement parallèle au plan de roulement du bogie, facilitent encore l'aménagement d'un couloir de circulation bas et large dans le châssis de caisse.In the first embodiment of the invention, the fact that the motors and gearboxes are placed towards the outside of the bogie relative to the wheels, and the fact that the frame and the axle boxes are arranged in the same plane substantially parallel to the running surface of the bogie, further facilitate the development of a low and wide circulation corridor in the body frame.

Par ailleurs, le fait que les moteurs soient placés vers l'extérieur du bogie, verticalement au niveau du châssis de bogie, et le fait que les suspensions secondaires soient placées à l'intérieur du bogie par rapport aux roues, au même niveau que les moteurs, permet de créer dans le châssis de caisse deux zones basses latérales entre les roues avant et arrière du bogie. Il devient ainsi possible de disposer seize sièges dans la caisse au-dessus de chaque bogie. En effet, deux sièges peuvent être disposés à l'avant de chaque zone basse, et deux autres à l'arrière de ladite zone basse, en vis-à-vis des sièges avant. Les zones basses servent à loger les jambes des passagers assis sur les quatre sièges en vis-à-vis.Furthermore, the fact that the motors are placed towards the outside of the bogie, vertically at the level of the bogie frame, and the fact that the secondary suspensions are placed inside the bogie with respect to the wheels, at the same level as the engines, allows to create in the body frame two low side zones between the front and rear wheels of the bogie. It becomes possible to have sixteen seats in the box above each bogie. Indeed, two seats can be arranged at the front of each low area, and two others at the rear of said low area, vis-à-vis the front seats. The low areas are used to house the legs of passengers sitting on the four seats vis-à-vis.

Le second mode de réalisation de l'invention présente également de multiples avantages.The second embodiment of the invention also has multiple advantages.

Le fait que le moteur et les réducteurs soient rassemblés d'un côté latéral du bogie, à l'opposé des organes de suspension primaires bas, facilite encore l'aménagement d'un couloir de circulation à la fois bas et large dans le châssis de caisse.The fact that the engine and gearboxes are assembled on one lateral side of the bogie, in contrast to the low primary suspension members, further facilitates the arrangement of a low and wide circulation lane in the chassis of the truck. checkout.

La disposition symétrique du ou des moteurs et des réducteurs par rapport au plan transversal médian des roues va également dans ce sens.The symmetrical disposition of the motor (s) and reducers with respect to the median transverse plane of the wheels also goes in this direction.

Le moteur d'entraînement du bogie peut être avantageusement aligné longitudinalement entre les deux réducteurs. Le ou chaque moteur et les réducteurs présentent transversalement sensiblement le même encombrement, de telle sorte qu'il subsiste un espace libre important entre le moteur et les réducteurs, d'une part, et les roues situées du côté opposé du bogie, d'autre part, pour laisser passer le couloir de circulation de la caisse.The drive motor of the bogie can advantageously be aligned longitudinally between the two reducers. The or each motor and the gear units have substantially the same dimensions transversely, so that there remains a large free space between the engine and the gearboxes, on the one hand, and the wheels on the opposite side of the bogie, on the other hand on the other hand, to let through the cash circulation corridor.

Du fait que les réducteurs sont rassemblés d'un même côté du bogie, le couloir de circulation est décalé par rapport au plan médian de la caisse et parallèle à la direction principale de la caisse.Because the reducers are assembled on one side of the bogie, the traffic corridor is offset from the median plane of the body and parallel to the main direction of the body.

Les freins et les ressorts de suspension secondaire du bogie sont placés dans ce cas vers l'extérieur du bogie par rapport aux roues, de manière à ne pas gêner le passage du couloir de circulation de la caisse.In this case, the brakes and the secondary suspension springs of the bogie are placed towards the outside of the bogie with respect to the wheels, so as not to impede the passage of the traffic corridor of the box.

Le fait que le moteur est placé le long d'une partie centrale basse du longeron droit, vers l'extérieur du bogie, et le fait que le moteur soit placé à un niveau inférieur à celui des parties d'extrémités surélevées du longeron droit permet de créer dans le châssis de caisse deux zones basses latérales entre les roues avant et arrière du bogie.The fact that the engine is placed along a low central portion of the right spar, towards the outside of the bogie, and the fact that the engine is placed at a level lower than that of the raised end portions of the right spar allows to create in the body frame two low side zones between the front and rear wheels of the truck.

Il devient ainsi possible de disposer jusqu'à quatre rangées de trois sièges sans trop empiéter sur le couloir pour une caisse étroite (moins de 2400 mm de largeur), soit douze sièges au-dessus du bogie. Deux sièges de chaque rangée sont dans ce cas disposés au-dessus de la partie surélevée 126, la plus large, et un seul au-dessus de la partie surélevée 128, la plus étroite. Dans le cas d'une caisse plus large (plus de 2400 mm de largeur), il est possible de disposer quatre rangées de quatre sièges au-dessus du bogie sans trop empiéter sur le couloir, soit seize sièges au total. Deux sièges de chaque rangée sont alors disposés au-dessus de la partie surélevée 126 et deux autres au-dessus de la partie surélevée 128. Les sièges des rangées centrales sont disposés en vis-à-vis à l'avant et à l'arrière des zones basses, les passagers pouvant ainsi loger leurs jambes dans les zones basses.It thus becomes possible to have up to four rows of three seats without too much encroaching on the corridor for a narrow box (less than 2400 mm wide), ie twelve seats above the bogie. Two seats of each row are in this case arranged above the raised portion 126, the widest, and only one above the raised portion 128, the narrowest. In the case of a wider body (more than 2400 mm wide), it is possible to have four rows of four seats above the bogie without too much encroaching on the corridor, ie sixteen seats in total. Two seats of each row are then arranged above the raised portion 126 and two others above the raised portion 128. The seats of the central rows are arranged vis-à-vis front and rear low areas, the passengers can thus house their legs in low areas.

L'architecture du bogie permet de monter ce bogie sur la caisse soit pivotant autour d'un pivot sensiblement perpendiculaire au plan de roulement du véhicule, soit non pivotant, c'est-à-dire avec un débattement angulaire inférieur ou égal à 2° par rapport à la caisse.The architecture of the truck makes it possible to mount this bogie on the body either pivoting about a pivot substantially perpendicular to the running surface of the vehicle, or non-pivoting, that is to say with an angular displacement of less than or equal to 2 ° compared to the cashier.

Les bogies décrits ci-dessus peuvent présenter de multiples variantes.The bogies described above can have multiple variants.

Le bogie peut être un bogie porteur, c'est-à-dire dénué de moteur.The bogie can be a bogie carrier, that is to say without engine.

Le bogie peut être pivotant ou non pivotant, la largeur du couloir de circulation ménagée dans le châssis de caisse au-dessus du bogie pouvant être augmentée dans ce dernier cas.The truck can be pivotable or non-pivoting, the width of the traffic corridor in the chassis frame above the bogie can be increased in the latter case.

Les essieux avant et arrière peuvent être du type couplé, comme décrit dans EP-0 911 239 ou du type découplé, comme décrit dans la demande de brevet portant le numéro de dépôt FR 06 00834 . Dans les deux cas, il et possible d'abaisser la hauteur du couloir de circulation en dessous de 480 mm.The front and rear axles can be of the coupled type, as described in EP-0 911 239 or of the decoupled type, as described in the patent application bearing the deposit number FR 06 00834 . In both cases, it is possible to lower the height of the traffic corridor below 480 mm.

Les organes de suspension secondaires peuvent être de tout type, et comprendre des sandwichs caoutchouc/acier en chevrons ou des ressorts hélicoïdaux. Le bogie peut comprendre deux ou quatre organes de suspension secondaire.The secondary suspension members may be of any type, and include rubber / steel herringbone sandwiches or helical springs. The bogie may comprise two or four secondary suspension members.

Les freins ne sont pas nécessairement des freins à disques, mais peuvent être de tout type, par exemple des freins à tambour.The brakes are not necessarily disc brakes, but may be of any type, for example drum brakes.

La traverse danseuse peut être liée au châssis de caisse par une couronne, par un pivot ou par un organe analogue.The bolster can be connected to the body frame by a ring, a pivot or a similar member.

Dans le premier mode de réalisation, le bogie peut n'être équipé de suspensions primaires basses que d'un seul côté, à droite ou à gauche.In the first embodiment, the bogie may be equipped with lower primary suspensions only one side, right or left.

Il peut ne comprendre qu'un seul moteur. Dans ce cas, les deux réducteurs sont disposés d'un même côté du bogie, vers l'extérieur du bogie par rapport aux rames, le moteur étant couplé aux deux réducteurs.It may only include one engine. In this case, the two reducers are arranged on the same side of the bogie, towards the outside of the bogie relative to the trains, the engine being coupled to the two reducers.

Dans le second mode de réalisation, le bogie peut comprendre deux moteurs, entraînant chacun les deux roues associées à un même essieu. Dans ce cas, les deux moteurs sont alignés longitudinalement entre les réducteurs.In the second embodiment, the bogie may comprise two motors, each driving the two wheels associated with the same axle. In this case, the two motors are aligned longitudinally between the gear units.

Claims (21)

  1. Bogie (16) for a railway vehicle, the bogie comprising:
    - a chassis (22);
    - two front wheels (24) and two rear wheels (26);
    - for each front wheel (24) and each rear wheel (26), guidance means (32, 38, 48) for guiding said wheel in rotation and a primary suspension device (33) of the chassis (22) on said guidance means (32, 38, 48);
    at least the primary suspension devices (33) associated with the front and rear wheels (24, 26) provided on the same first lateral side of the bogie (16) comprising each:
    - two longitudinal connecting rods (91, 92), each connected to the chassis (22), by a first connection point (94, 96) and to the corresponding guidance means (32) by a second connection point (98, 100),
    - at least one resilient component (102) inserted between the two connecting rods (91, 92) to define at least the vertical stiffness of the primary suspension device (33),
    characterised in that the two connecting rods are offset longitudinally from one another.
  2. Bogie according to claim 1, characterised in that in each of said primary suspension devices (33), the two rods (90, 92) are substantially parallel to one another and are of substantially the same longitudinal length between the respective first and second connection points (94, 98; 96, 100) thereof.
  3. Bogie according to either claim 1 or claim 2, characterised in that in each of said primary suspension devices (33), the or each resilient component (102) is a sandwich comprising a plurality of layers (106) of a resilient material and a plurality of metal plates (108, 110) inserted between the layers (106) of resilient material and adhering to said resilient layers (106).
  4. Bogie according to any one of claims 1 to 3, characterised in that in each of said primary suspension devices (33), the or each resilient component (102) has an axis of compression forming an angle (β) of between 0° and 90° relative to an axis passing through the first connection points (94, 96) of the two connecting rods (91, 92).
  5. Bogie according to any one of claims 1 to 4, characterised in that in each of said primary suspension devices (33), each of the two connecting rods (90, 92) is connected to the guidance means (32) corresponding to the second connection point (98, 100) thereof by a resilient cylindrical articulation, and to the chassis (22) by the first connection point (94, 96) thereof, likewise by a resilient cylindrical articulation.
  6. Bogie according to any one of claims 1 to 5, characterised in that the two connecting rods (91, 92) of each of said primary suspension devices (33) are arranged at a vertical level lower than the highest point (104) of the corresponding guidance means (32).
  7. Bogie according to any one of the preceding claims, characterised in that each primary suspension device (33) is arranged on a side of the associated wheel (24, 26) facing the inside of the bogie (16).
  8. Bogie according to any one of the preceding claims, characterised in that the body (22) comprises two longitudinal side members (52) arranged towards the inside of the bogie (16) relative to the wheels (24, 26).
  9. Bogie according to claim 8, characterised in that the side members (52) and the guidance means (32) of the wheels (24, 26) are arranged substantially in the same plane parallel to the rolling plane of the bogie (16).
  10. Bogie according to claim 9, characterised in that each side member (52) extends between two guidance means (32), said side member (52) having front and rear end portions (56, 58) aligned with and terminating longitudinally at a distance from the two guidance means (32).
  11. Bogie according to either claim 9 or claim 10, characterised in that it comprises at least one motor (28, 30) and a device (29, 31) suitable for coupling in rotation at least one wheel (24, 26) of the bogie (16) to the motor (28, 30), the or each motor (28, 30) and the coupling device (29, 31) being arranged on a side of the wheels (24, 26) facing the outside of the bogie (16).
  12. Bogie according to either claim 9 or claim 10, characterised in that it comprises two motors (28, 30) and two devices (29, 31) each suitable for coupling in rotation a pair of wheels (24, 26) of the bogie (16) to a motor (28, 30), one of the two motors (30) and one of the two coupling devices (31) being arranged towards the outside of the bogie (16) relative to the wheels (24, 26) situated on the first lateral side of the bogie, the other of the two motors (28) and the other of the two coupling devices (29) being arranged towards the outside the bogie relative to the wheels (24, 26) situated opposite the first lateral side of the bogie.
  13. Bogie according to claim 12, characterised in that one of the two motors (28) is coupled to the two front wheels (24) and the other of the two motors (30) is coupled to the two rear wheels (26).
  14. Bogie according to claim 8, characterised in that it comprises at least one motor (150), coupling means (29) of the front wheels (24) to the or a motor (150), and coupling means (31) of the rear wheels (26) to the or a motor (150), the or each motor (150) and the front and rear coupling means (29, 31) being arranged between, on the one hand, a longitudinal plane (P1) midway between the two front wheels (24) and midway between the two rear wheels (26) and, on the other hand, a longitudinal plane (P2) passing through the front wheel (24) and the rear wheel (26) situated on the second lateral side of the bogie (16).
  15. Bogie according to claim 14, characterised in that the front and rear coupling means (29, 31) are arranged in positions symmetrical to one another about a median transverse plane (P3) of the front and rear wheels (24, 26).
  16. Bogie according to either claim 14 or claim 15, characterised in that it comprises a single driving motor (150) aligned longitudinally between the front and rear coupling means (29, 31).
  17. Bogie according to any one of claims 14 to 16, characterised in that it comprises braking elements (35) for the front and rear wheels (24, 26) and secondary suspension components (162) suitable for suspending a railway vehicle body (12) on the bogie chassis (22), the braking elements (35) and the secondary suspension components (162) being positioned outside the bogie (16) relative to the wheels (24, 26).
  18. Bogie according to any one of claims 14 to 17, characterised in that the side member (52) on the second lateral side of the bogie comprises a central portion (152) extending along the motor (150) and two end portions (156, 158) situated, relative to the rolling plane of the bogie, at a higher level than the central portion (152), the end portions (156, 158) extending above the means for guiding in rotation the wheels (24, 26) situated on the second lateral side of the bogie, the motor (150) being situated at a level lower than that of the end portions (154, 156) relative to the rolling plane of the bogie.
  19. Bogie according to claim 18, characterised in that the side member (52) situated on the first lateral side of the bogie and the guidance means (32) of the wheels (24, 26) situated on the first lateral side of the bogie extend substantially in the same plane parallel to the rolling plane of the bogie (16).
  20. Bogie according to any one of the preceding claims, characterised in that it comprises pivot connection means (34) suitable for connecting the bogie (16) to the body (12) of the railway vehicle.
  21. Railway vehicle comprising at least one bogie according to any one of the preceding claims.
EP08788001.9A 2007-04-05 2008-03-14 Bogie for railway vehicle Active EP2142412B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL08788001T PL2142412T3 (en) 2007-04-05 2008-03-14 Bogie for railway vehicle

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0754306A FR2914609B1 (en) 2007-04-05 2007-04-05 BOGIE FOR RAILWAY VEHICLE
PCT/FR2008/050442 WO2008132361A1 (en) 2007-04-05 2008-03-14 Bogie for railway vehicle

Publications (2)

Publication Number Publication Date
EP2142412A1 EP2142412A1 (en) 2010-01-13
EP2142412B1 true EP2142412B1 (en) 2015-07-01

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ID=38670831

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EP08787999.5A Active EP2142411B1 (en) 2007-04-05 2008-03-14 Railway vehicle including pivoted bogies
EP08799840A Active EP2132080B1 (en) 2007-04-05 2008-03-14 Railway vehicle comprising pivoting end bogies
EP08788001.9A Active EP2142412B1 (en) 2007-04-05 2008-03-14 Bogie for railway vehicle

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EP08787999.5A Active EP2142411B1 (en) 2007-04-05 2008-03-14 Railway vehicle including pivoted bogies
EP08799840A Active EP2132080B1 (en) 2007-04-05 2008-03-14 Railway vehicle comprising pivoting end bogies

Country Status (10)

Country Link
US (3) US8365675B2 (en)
EP (3) EP2142411B1 (en)
KR (3) KR101487792B1 (en)
CN (3) CN101678841B (en)
AT (1) ATE521515T1 (en)
CA (3) CA2682001C (en)
ES (3) ES2547491T3 (en)
FR (1) FR2914609B1 (en)
PL (3) PL2132080T3 (en)
WO (3) WO2008132360A1 (en)

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US8365675B2 (en) 2013-02-05
ES2372560T3 (en) 2012-01-23
PL2142411T3 (en) 2014-12-31
FR2914609A1 (en) 2008-10-10
US20100083866A1 (en) 2010-04-08
US20100186620A1 (en) 2010-07-29
EP2142412A1 (en) 2010-01-13
ES2547491T3 (en) 2015-10-06
KR101487792B1 (en) 2015-01-29
CN101678841A (en) 2010-03-24
CA2683119C (en) 2016-02-09
CA2682931A1 (en) 2008-11-06
KR20100016242A (en) 2010-02-12
CN101678842A (en) 2010-03-24
CN101678842B (en) 2011-08-17
EP2132080A1 (en) 2009-12-16
EP2132080B1 (en) 2011-08-24
PL2132080T3 (en) 2012-02-29
KR20100016241A (en) 2010-02-12
CN101678843B (en) 2011-08-10
KR20090130078A (en) 2009-12-17
FR2914609B1 (en) 2009-07-10
CN101678843A (en) 2010-03-24
EP2142411B1 (en) 2014-07-02
CA2683119A1 (en) 2008-10-30
CA2682001C (en) 2016-05-03
CA2682931C (en) 2015-12-15
WO2008132360A1 (en) 2008-11-06
ES2497500T3 (en) 2014-09-23
CA2682001A1 (en) 2008-11-06
US20100132585A1 (en) 2010-06-03
US8371234B2 (en) 2013-02-12
PL2142412T3 (en) 2015-12-31
US8381659B2 (en) 2013-02-26
WO2008129205A1 (en) 2008-10-30
CN101678841B (en) 2011-08-17
KR101465146B1 (en) 2014-12-04
EP2142411A1 (en) 2010-01-13
WO2008132361A1 (en) 2008-11-06
KR101456595B1 (en) 2014-11-12
ATE521515T1 (en) 2011-09-15

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