JP2002087261A - Monorail car - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To reduce wear of a running tire and lengthen a replacement cycle thereof. An air spring (15) is provided between a vehicle body (10) and a bogie (11).
And a rolling device 4 between the air spring 15 and the vehicle body 10.
There is 0. The rolling device 40 includes a plurality of rollers 41, and the axis thereof is located between the air springs at both ends in the width direction.
The inside and outside of the holder 45 holding the roller 41 are supported by the roller 55. The rolling device 40, that is, the vehicle body 10 rotates with respect to the air spring 15 by passing the curve, and suppresses wear of the traveling tire 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for supporting a vehicle body of a monorail vehicle.

[0002]

2. Description of the Related Art As shown in Japanese Patent Publication No. 57-175456, an apparatus for supporting a vehicle body supports the vehicle body from a bogie via an air spring. The air spring is fixed to the cart.

[0003]

When a vehicle passes through a curve, a relative angle in the yawing direction occurs between the vehicle body and the bogie. Thereby, the air spring between the vehicle body and the bogie is displaced back and forth. This displacement of the air spring in the front-rear direction occurs in the left and right air springs in opposite directions. Then, a rotational moment is generated to rotate the bogie in the yawing direction.
This rotational moment acts in a direction to increase the slip angle of the running tire. The greater the slip, the greater the wear on the running tire.

[0004] The yawing increases as the radius of the curve decreases. Recently, there is a demand for a monorail car traveling on a curve with a small radius, and tire wear is increasing.

[0005] It is an object of the present invention to reduce the wear of running tires and lengthen the replacement cycle.

[0006]

According to the present invention, a rolling device is provided between an air spring and a vehicle body so that yaw does not cause the air spring to move back and forth, and the vehicle body relatively rotates on the air spring. It is like that.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The vehicle body 10 is mounted on two carriages 11. The vehicle body 10 and the bogie 11 are connected by an anchor device 19. The vehicle body 10 is mounted on a cart 11 via an air spring 15. The air springs 15 are provided at both ends in the width direction (the direction perpendicular to the running direction) of the carriage 11. The cart 11 has running tires 21, guide wheels 22, and stable wheels 23.

The vehicle body 10 rests on an upper seat 17 of the air spring 15 via a rolling device 40 on a seat 30 above the air spring 15. The rolling device 40 rotates the vehicle body 10 with respect to the bogie 11 by yawing the vehicle body 10. The rolling device 40 has a number of rollers 41.
The axis of the roller 41 is located at the rolling device 4
It faces the middle of 0,40. Eight rollers each having three rollers 41 installed on one shaft 42 are installed. Shaft 42
Is provided with three arc-shaped grooves 46 centered on the middle. The roller 41 is arranged in the groove 46.

The roller 41 is supported on a shaft 42 via a bearing 47. A spacer 49 is arranged between the bearing 47 and the partition of the holder 45 on both sides.
Both ends of the shaft 42 are fixed to ends of the holder 45 via seats 51 with nuts 52.

The holder 45 is fixed to the vehicle body 1 by bolts 50.
0 is fixed to the seat 11b on the lower surface.

Rollers 55, 55 in contact with seats 51, 51
Is installed on the seat 30. The axis of the roller 55 is oriented vertically. The seats 51 are arc-shaped.

According to this configuration, yawing occurs when the monorail car passes through the curve. Thereby, the vehicle body 10 is rolled by the rolling device 40 with respect to the air spring 15. Therefore, wear of the traveling tire 21 can be suppressed.

[0013]

According to the present invention, the wear of the running tire can be suppressed because the vehicle body rotates with respect to the air spring when passing through the curve.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of an air spring portion of an embodiment of the present invention, taken along a width direction of a vehicle body.

FIG. 2 is a sectional view taken along line II-II of FIG.

FIG. 3 is a sectional view taken along the line III-III of FIG. 2;

FIG. 4 is an IV-IV view of FIG. 2;

FIG. 5 is a sectional view taken along line VV of FIG. 3;

FIG. 6 is a side view of the monorail car provided with FIG. 1;

[Explanation of symbols]

10: body, 11: trolley, 15: air spring, 21: running tire, 31, 55: roller, 42: shaft.

Claims (2)

[Claims] 1. A monorail car in which an air spring is arranged between a bogie and a vehicle body, wherein a rolling device is provided between the air spring and the vehicle body. 2. The rolling device according to claim 1, wherein the rolling device includes: a plurality of rollers that roll on an upper surface of the air spring or a lower surface of the vehicle body; A monorail car having a second roller for guiding, the second roller rolling inside and outside the roller in the axial direction.