JP2009120091A5 - Anti-roll device between vehicles and railway vehicle - Google Patents

Description

In order to achieve the above object, an inter-vehicle anti-roll device according to the present invention is an inter-vehicle anti-roll device provided between adjacent vehicle bodies, and is provided with first and second anti-roll devices provided at upper portions of the end surfaces of the respective vehicle bodies. One end of each of the first and second anti-roll bars is disposed in the vehicle width direction, and can be turned at least in the horizontal direction at each of the ends. The second anti-roll bar is provided so as to intersect between the vehicle bodies in a plan view .

As described in claim 2, in the inter-vehicle anti-roll device according to claim 1, the first and second anti-roll bars further include a damper and a coil spring arranged along the axial direction, The coil spring can be compressed when a compressive force and a tensile force act on the damper.

As described in claim 3, in the inter-vehicle anti-roll device according to claim 1, the first and second anti-roll bars have a first rod extending from an end, and the first rod. A second rod extending from the other end, a coil spring provided on an outer periphery of the first rod and on an inner periphery of the second rod, and an inner portion of the second rod And a damper provided on the other end side.

A railway vehicle according to a fourth aspect of the present invention is the vehicle body adjacent to the lower part of each of the vehicle bodies, the anti-roll device between the vehicle bodies according to any one of claims 1 to 3, a plurality of vehicle bodies connected to each other. And a spherical bearing coupler.

5. The railway vehicle according to claim 4, wherein the vehicle body includes a front vehicle body, an intermediate vehicle body, and a rear vehicle body, and the rail vehicle further includes the front vehicle body and the rear vehicle body. A front bogie and a rear bogie provided at a lower portion of the intermediate bogie, and an intermediate bogie provided at a lower portion of the intermediate bogie, wherein the front bogie and the rear bogie are two-axis bokey carts having wheels at both ends in the vehicle width direction. The intermediate carriage is a four-wheel independent wheel carriage having wheels at both ends in the vehicle width direction.

  According to the apparatus of the first aspect, the relative roll displacement between the vehicle bodies is absorbed and alleviated by the damper that generates a damping force in a direction that prevents the displacement. Since it is arranged along the vehicle width direction on the upper part of the joint surface of the car body, a wading line between the car bodies can be provided on the wife surface beside the communication path, or between the roof part above the anti-roll device, An outer hood can be provided between the outer peripheral edges of the body surface of the vehicle body to improve the appearance, and the size of the communication path connecting the vehicle bodies can be greatly increased. Furthermore, both dampers act on relative yawing (yaw displacement) when passing through a curved road, and a reaction force is generated in the yaw direction (sleeper direction / vehicle width direction), but these reaction forces are opposite to each other. Since the reaction force generated in the axial direction of the anti-roll bar cancels each other, the running stability is not affected. Such an effect is particularly effective in a streetcar or the like in which vehicles are connected by a spherical bearing coupler at the lower center position of the vehicle body face as described in claim 4.

If Sonaere da damper coil spring not only in parallel, in particular LRV (Light Rail Vehicle) in a plurality of vehicles structures a vehicle body carriages and articulated such, relatively yaw between the body, especially during cornering Even if the angle is generated, the roll angle is not affected, and therefore, the derailment coefficient and the wheel load loss rate can be reduced, and the running stability is improved. Furthermore, it is possible to cope with vertical displacement (pitching, etc.) between adjacent vehicle bodies by the expansion and contraction operation of the anti-roll bar.

According to the apparatus of the present invention , a long anti-roll bar can be formed with a cross section having a small outer diameter, and a long stroke of, for example, ± 100 mm can be achieved by a parallel combination of a coil spring and an oil damper. In addition, in a limited space between the upper parts of the vehicle body connection parts (for example, between the hood at the vehicle body connection part and the wading line between the vehicle bodies above the upper part), it can be arranged and attached without difficulty. Further, according to this structure, the urging force of the coil spring always acts in the compression direction, so that even if breakage or the like occurs, all the functions are not lost, and the fail-safe property is obtained.

According to the railway vehicle according to claim 4, since the lower part between the adjacent vehicle bodies is connected by the spherical bearing type coupler, the adjacent vehicle bodies can be relatively rolled, yawed or pitched when the vehicle is running. However, the impact force associated with rolling is absorbed and relaxed by the damping force of the damper that is generated when a pair of opposing anti-roll bars expands and contracts, and the relative displacement between the vehicle bodies accompanying rolling is the resistance of the coil spring. Since it is suppressed by the spring force, the running stability of the vehicle is improved. In particular, in the case of a tramway, a sharp curve road is often provided, but on this sharp curve road, the relative rolling of the vehicle body when the vehicle passes becomes remarkable, but the impact force and relative displacement are suppressed, Curve passing performance is improved. On the other hand, the dampers and springs of both anti-roll bars act against relative yawing, and reaction forces are generated in the yaw direction, but these reaction forces cancel each other, so the running stability is not adversely affected. Therefore, the vehicle can stably travel on a sharply curved road.

If, at X-shaped arrangement of the pair of anti-roll bar when the curved road pass as external force in the yaw direction is canceled, strange force does not act on the vehicle body, without adversely affecting the running stability, also it is effective particularly combined with more body articulation structure coupled between the vehicle body with the spherical bearing type coupling.

Claims (5)

An inter-vehicle anti-roll device provided between adjacent vehicle bodies,
Comprising first and second anti-roll bars provided at the top of the end face of each vehicle body;
In one of the vehicle bodies, one end of the first and second anti-roll bars is disposed in the vehicle width direction, and can turn at least in the horizontal direction at each of the one ends.
An inter-vehicle anti-roll device in which the first and second anti-roll bars are provided so as to intersect each other in plan view between the vehicle bodies. The first and second anti-roll bars further include a damper and a coil spring disposed along the axial direction,
The inter-vehicle anti-roll device according to claim 1 , wherein the coil spring is compressed when a compressive force and a tensile force act on the damper . The first and second anti-roll bars are:
A first rod extending from one end;
A second rod provided slidably with respect to the first rod and extending from the other end;
A coil spring provided on the outer periphery of the first rod and on the inner periphery of the second rod;
There the inner periphery of the second rod, further comprising a damper provided in the other end, the body between the anti-roll device according to claim 1. The anti-roll device between vehicle bodies according to any one of claims 1 to 3,
A plurality of vehicle bodies connected to each other;
A railway vehicle comprising a spherical bearing coupler capable of connecting adjacent vehicle bodies at a lower portion of each vehicle body. The vehicle body includes a front vehicle body, an intermediate vehicle body, and a rear vehicle body,
The railway vehicle further includes
A front carriage and a rear carriage provided below the front vehicle body and the rear vehicle body,
Including an intermediate carriage provided at a lower portion of the intermediate carriage,
The front carriage and the rear carriage are two-axis bogie trucks having wheels at both ends in the vehicle width direction,
The railway vehicle according to claim 4, wherein the intermediate carriage is a four-wheel independent wheel carriage having wheels at both ends in the vehicle width direction.