JPH0645411Y2 - Anti-roll device with sway pillow effect - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to an anti-roll device capable of increasing the roll rigidity of a railroad vehicle while maintaining the effect of a swing pillow.

[Conventional technology]

Conventionally, an anti-roll device has been used to increase the roll rigidity of a vehicle. On the other hand, in many cases, a bogie has been used in which the swing pillow is omitted by utilizing the lateral rigidity of an air spring.

[Problems to be solved by the device]

By the way, in vehicles where the swing pillow is omitted by utilizing the lateral rigidity of the air spring, there are some vehicles that have a slight problem in the ride comfort in the left-right direction due to lack of lateral rigidity or the roll center lowering. It has been demanded.

[Means for Solving the Problems]

In this invention, a torsion bar made of spring steel supported between a pair of support members provided in a vehicle bogie frame in a width direction of the vehicle is provided with ends of the torsion bar that project laterally from the support member. The two ends of this torsion bar are connected to one end of a connecting link that is arranged in a substantially V shape to take a left and right straddle through joints. The other end of the torsion bar made of an elastic material is connected to the vehicle body side via a spherical joint, or is supported between a pair of support members provided downward on the vehicle body side in the vehicle width direction. The ends projecting laterally from the member were constructed by bending them in the same longitudinal direction of the vehicle, and both ends of this torsion bar were arranged in a substantially V-shape to take a straddle to the left and right via spherical joints. Connect them to one end of the connecting link, It proposes a second end of the binding link bogie frame Yotsute to or linked via a spherical joint, the anti-roll device having a bolster effect.

[Action]

In this invention, a torsion bar made of spring steel is supported on either one of the bogie frame of the vehicle and the vehicle body side, and the bogie frame is connected through a connecting link in which the torsion bar is arranged in a substantially V shape on the left and right. When the vehicle body makes a pure roll displacement around the pillow spring during traveling, the torsion bar is twisted by the roll displacement, and the restoring force acts in the direction to return the roll, Further, when the vehicle body undergoes a pure lateral displacement, the torsion bar is twisted by the lateral displacement, and the restoring force acts in the direction of the vehicle body inclination of the upper core roll, similar to the action of the swing pillow device.

〔Example〕

1 (a) and 1 (b) are a front view and a partial side view of a vehicle to which the device of the present invention is attached, wherein 1 is a bogie frame, 2 is a vehicle body, and the bogie frame 1 is arranged in the width direction of the vehicle. A torsion bar 5 made of spring steel is supported between a pair of supporting members 3 and 4 provided, and ends 6 and 7 of the torsion bar 5 projecting laterally from the supporting members 3 and 4.
Are bent in the same direction in the longitudinal direction (front-back direction) of the vehicle to have a shape as shown in FIG. 2, and both ends of this torsion bar 5 are connected to one end of connecting links 10 and 11 via spherical joints 8 and 9. The other ends of these connecting links 10 and 11 which are arranged in a substantially V shape so as to take a straddle to the left and right are connected to the vehicle body 2 via spherical joints 12 and 13.

FIG. 3 (a) shows a state in which the vehicle body 2 is subjected to pure roll displacement around the pillow spring from the state shown in FIGS. 1 (a) and (b) in the neutral position. Then, the torsion bar 5 is twisted as shown in the drawing, and the restoring force acts in the direction of returning the roll, as shown in FIG. 3 (b).

Further, in FIG. 4 (a) showing the case where the vehicle body 2 undergoes a pure left-right displacement, the torsion bar 5 is twisted as shown by the left-right displacement, and the restoring force thereof is the same as that of the swing pillow device. As shown in FIG. 6B, the upper center roll acts in the direction of vehicle body inclination.

FIG. 5 shows an example of attachment of the device, and
3, 4 are provided on the lower surface of the bogie frame 1 downward, and the other ends of the connecting links 10, 11 are connected to the pillow beam 14 located under the vehicle body 2 via spherical joints 12, 13 (cylindrical joints, etc.). That is the case.

FIG. 6 shows a bolsterless cart in which the supporting members 3 and 4 are provided.
Is provided on the lower surface of the vehicle body 2, and the other ends of the connecting links 10 and 11 which are connected to both ends of these supporting members 3 and 4 via spherical joints 8 and 9 are connected to the bogie frame 1 via spherical joints 12 and 13. The following shows an example of connection.

Also in the mounting examples shown in FIGS. 5 and 6, the connecting links 10 and 11 are arranged in a substantially C-shape so as to take the left and right treads.

[Effect of device]

According to the device having the above-mentioned structure, the present invention provides an excellent restoring action against roll displacement and lateral displacement of the vehicle body by adding a device having an extremely simple structure. It is extremely useful.

[Brief description of drawings]

1 (a) and 1 (b) are a front view and a side view of a part of a vehicle equipped with the device of the present invention, FIG. 2 is a perspective view of a torsion rod, and FIGS. 3 (a) and 3 (b). Is a state diagram in which the vehicle body is roll-displaced and a state diagram in which it is restored, FIGS. 4 (a) and 4 (b)
Is a state diagram where the vehicle body is displaced left and right and a restored state diagram,
5 and 6 are views showing an example of mounting the device of the present invention. In the figure, 1 ... Bogie frame 2 ... Car body 3,4 ... Supporting member 5 ... Torsion rod made of spring steel 8,9 ... Spherical joint 10,11 ... Connecting link 12,13 ... Spherical surface Joint 14: Pillow beam.

Claims (2)

[Scope of utility model registration request] 1. A torsion bar made of spring steel, which is supported between a pair of support members provided in a vehicle bogie frame in the width direction of the vehicle, has end portions projecting laterally from the support members. It is constructed by bending in the same direction in the longitudinal direction, and both ends of this torsion bar are connected to one end of a connecting link arranged in a substantially V shape to take a straddle to the left and right through spherical joints. An anti-roll device with a swaying pillow effect that connects the other end to the vehicle body side via a spherical joint. 2. A torsion bar made of spring steel supported on a vehicle body side of a vehicle between a pair of support members provided downward in the width direction of the vehicle, each end portion projecting laterally from the support member. It is constructed by bending in the same direction as the longitudinal direction of the vehicle, and both ends of this torsion bar are respectively connected to one end of a connecting link arranged in a substantially V shape to take a straddle to the left and right through spherical joints. An anti-roll device with a swaying pillow effect that connects the other end of the link to the bogie frame via a spherical joint.