JP2002264809A - Low floor type articulated vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a low floor type articulated vehicle appropriate for a barrier-free vehicle by achieving 100% of a low floor at by using a general double-shaft bogie. SOLUTION: A driving cab body and a passenger cabin body are separately formed, and the driving cab body 1 and an end passenger cabin body 2 are connected to each other by a horizontal movable linkage device 5, and the end passenger cabin body 2 and an intermediate passenger cabin body 3 are connected to each other by a horizontal movable linkage device 6. The driving cab body 1 is fixed onto a bolster-less double-shaft motive bogie 4 having a structure with no bolster and a center pin. The intermediate passenger cabin body 3 is arranged on a bolster-less loose wheel trailing bogie. The end passenger cabin body 2 is held by each bogie of the driving cab body 1 and the intermediate passenger cabin body 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a low-floor articulated railway vehicle used as a transport system compatible with barrier-free, and more particularly to a low-floor articulated vehicle capable of coping with a maintenance facility without requiring a major modification. It is.

[0002]

2. Description of the Related Art FIGS. 3A and 3B show an example of a conventional low floor articulated vehicle, wherein FIG. 3A is a plan view and FIG. 3B is a front view. FIGS. 4A and 4B are schematic structural views showing a part of this conventional articulated vehicle in an enlarged manner, wherein FIG. 4A is a plan view and FIG. 4B is a front view.

In this vehicle, a vehicle A in front and a vehicle B in back are C
It is connected by car. Vehicle A has a trolley D only at the front end, vehicle B has a trolley D only at the rear end, and vehicles A and B are trolleys E provided on vehicle C.
This keeps the car body horizontal. In other words, by being a three-body, two-connected vehicle, they are balanced on the trolley provided for each vehicle, so that the balance is maintained and the vehicle is held horizontally.

As described above, a conventional low-floor type vehicle has a three-body, two-joint structure, a two-axis power bogie (motor bogie) with bolsters (pillows) at both ends, and a bolsterless independent wheel-attached bogie (trailer bogie) at the center. ) Is arranged.

[0005]

In the case of the above conventional configuration,
Each power bogie D arranged in A / B car (A car or B car)
In each of the two axles, wheels W are provided at both left and right ends, and a motor is disposed between the wheels. The trolley of the power bogie is attached to the bolster F of the vehicle body, and the bogie and the vehicle body can be turned freely via a center pin G arranged in a vertical direction. Therefore,
The part of the power trolley could not be reduced to a low floor. As described above, in the conventional configuration, in the A / B vehicle, a portion corresponding to the power bogie, that is, about 30% of the passenger compartment has a high floor, and 100% low floor cannot be achieved.

[0006] On the other hand, some vehicles have realized a 100% low floor. In such vehicles, a special power bogie is used in order to reduce the power bogie portion to a low floor. That is, it is necessary to hold the left and right wheels of the power bogie independently. Therefore, a conventional two-axis bogie having a proven track record cannot be used.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and a main object of the present invention is to realize a barrier-free by realizing a 100% low floor while using a currently commonly used twin-screw bogie. It is an object of the present invention to provide a low-floor articulated vehicle suitable for a vehicle.

[0008]

In order to achieve the above object, a low floor articulated vehicle according to the present invention has a cab body independent of a cabin body, and is provided between a cab body and an end cabin body, and A railway car in which a side cabin body and an intermediate cabin body are connected by a horizontal movable connecting device, wherein a cab body is disposed on a two-axis power bogie, and a middle cabin body is a bogie with independent wheels. It is arranged above and the end passenger cabin body is held by each truck of the driver's cab body and the middle passenger cabin body.

In the low floor articulated vehicle according to the present invention, preferably, in addition to the above configuration, the cab body is non-rotatably fixed on a bolsterless two-axis power bogie in which a bolster and a center pin are omitted. It is characterized by that.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION The low floor articulated vehicle of the present invention will be described below in more detail with reference to embodiments. FIG.
BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic structure figure of one Example of the low floor articulated vehicle of this invention, (a) is a top view and (b) is a front view. The vehicle in this illustrated example is a five-body, four-connected vehicle, and is used as a tram.

The low-floor articulated vehicle of this embodiment has a structure in which the A / B vehicle of the conventional three-body two-article vehicle shown in FIG. . That is, A
/ B car's two-axis power bogie D (4) end side (cab side)
However, it is independent from the guest room. As a result, the low floor articulated vehicle of the present embodiment has a cab body 1, 1 disposed at each of the front and rear ends and an intermediate cabin body (corresponding to the C vehicle in FIG. 3) 3 disposed at the center. , This middle cabin body 3
End passenger cabin body 2 disposed between the vehicle and the cab body 1
Are connected.

The cab body 1 and the intermediate cabin body 3 are
The length is sufficiently shorter than the end passenger cabin vehicle body 2, and adjacent vehicle bodies are connected by a horizontal (and vertical) movable connection device 5 (6). In this case, in the present embodiment, the cab body 1 and the side passenger cabin body 2 are connected by a horizontally movable connecting device 5, and the end passenger cabin body 2 and the intermediate passenger body body 3 are
It is connected by a horizontal / vertical movable connection device 6. In addition,
Each vehicle is connected to a rubber cushion by a bellows-like rubber material H (FIG. 3).

The cab body 1 is mounted on a two-axis power trolley 4. FIG. 2 is a schematic structural view of an example of a two-axis power truck 4 attached to the cab body 1, (a) is a plan view, (b) is a front view, and (c) is a side view.

The two-shaft power bogie 4 has substantially the same configuration as a conventionally used two-shaft bogie.
That is, two axles along the vehicle width direction are spaced apart and parallel in the vehicle longitudinal direction, and wheels 7, 7 are attached to both ends of each axle. And these wheels 7
Is rotatable by a motor or the like disposed between wheels.

The power truck 4 having such a configuration is attached to a lower portion of the cab body 1. At that time, as before, the pillows 9 of the bogie 4 may be attached to the pillows 8 of the vehicle body 1 and the bogie 4 may be pivotally mounted to the vehicle body 1 with the center pin. It is preferable to mount the cart 4. That is, the pillow 9 and the center pin of the carriage 4 can be omitted. In this case, the vehicle body 1 is placed on the air spring 10 of the carriage 4.
Will be arranged.

The reason why the pillow beam 9 and the center pin of the carriage 4 can be omitted is as follows. That is, in the present embodiment, the cab body 1 and the end passenger cabin body 2 are assembled by the horizontally movable connecting device 5, and the length of the cab body 1 is substantially equal to that of the power bogie 4 thereunder. Therefore, the cab body 1 and the power bogie 4 below the cab body 1 take the same movement during traveling. Therefore, the bogie 4 is relatively rotated (turned) with respect to the vehicle body 1 by the center pin so that the bogie 4 alone can travel independently as in the conventional case where the bogie is attached to a relatively long vehicle.
There is no reason to make it possible.

That is, in this embodiment, since the same movement of the vehicle body 1 and the bogie 4 holding the same is possible, the vehicle body 1
The center pin between the trolleys is not required, so that the trolley bolster 9 is not required. Therefore, the underframe can be configured by using the body bolster 8 as the trolley bolster 9.

As a result, the floor height of the driver's cab can be reduced by the width of the bogie, and the lower part of the air spring is a driver's cab body which can be used 100% for a passenger cabin while using a bogie as before.

The intermediate passenger cabin body 3 has the same configuration as the conventional C car shown in FIG. That is, the vehicle body is mounted on the bolsterless independent wheel accompanying truck. The independent-wheel-attached bogie is a conventionally known general one used for car C. That is, the wheels are rotatably held at the four corners of the bogie. The left and right wheels are not held on the same axle but are held independently, and since they are accompanying trucks, drive mechanisms such as motors are also omitted. Further, since there is no pillow beam, the middle passenger cabin body can be configured on a low floor.

The bogie 2 is not provided with a bogie, and the bogie 2 is held by trucks of a driver's cab body 1 and an intermediate cabin body 3 arranged before and after the bogie. The driver's cab body 1 is provided with an auxiliary underframe 11 below the end underframe on the side passenger cabin body 2 side. The auxiliary underframe 11 is used for the end passenger cabin body 2.
Are arranged at substantially the same height as the underframe 12. The auxiliary underframe 11 of the driver's cab body 1 and one end underframe of the end passenger cabin body 2 adjacent thereto are connected by the horizontally movable connecting device 5. Similarly, the other end frame of the end passenger cabin vehicle body 2 and the end frame of the intermediate passenger cabin vehicle body 3 adjacent thereto are connected by a horizontal / vertical movable connection device 6.

In the present embodiment, the horizontally movable connecting device 5 between the cab body 1 and the end passenger cabin body 2 uses the first connecting arm 51 from one vehicle (cab body) 1 side to the other vehicle (cab body). The second connecting arm 52 is arranged so as to protrude toward the one vehicle (cab body) while being protruded toward the side passenger car body 2) and from the other vehicle (the car body near the end) 2 side. Then, one race of the horizontal bearing 53 is fixed to the projection of the first connecting arm 51, and the other race of the horizontal bearing 53 is fixed to the projection of the second connection arm 52. Thereby, the two connecting arms 51 and 52 can be rotated in the horizontal plane via the horizontal bearing 53.

In the present embodiment, the horizontal / vertical movable connecting device 6 between the end passenger cabin body 2 and the intermediate cabin vehicle body 3 includes a first connecting arm 61 from one vehicle (intermediate passenger cabin body) 3 side. The vehicle (the end passenger cabin body) 2 is arranged so as to protrude toward the
The connecting relay member 64 is rotatably held on the upper surface of the projecting portion of the connecting arm 61 via a horizontal bearing 63, and the second connecting arm 62 is attached to the shaft portions 64 a, 64 a formed to protrude left and right of the connecting relay member 64. The second connecting arm 62 is held rotatably.
Is fixed to the other vehicle 2 by welding.

Alternatively, in the horizontal / vertical movable connecting device 6, the first connecting arm 61 on one vehicle 3 side and the second connecting arm 62 on the other vehicle 2 side rotate in a horizontal plane by a horizontal bearing 63. The second connecting arm 62 may be held so as to be rotatable in a vertical plane with respect to the other vehicle 2. In other words, a first connecting arm 61 that is arranged to protrude from one vehicle 3 toward the other vehicle 2, and a horizontal bearing 63 that is fixed to the first connecting arm 61 and one of the races is arranged substantially horizontally. By being fixed to the other race of the horizontal bearing 63, the horizontal bearing 63 is rotatably connected to the first connecting arm 61, and protrudes to the left and right ends on the other vehicle 2 side outward in the left-right direction to form a shaft. Second connecting arm 6 provided
2 and a bearing that rotatably holds the shaft of the second connecting arm 62 and that is provided with a bolt to the other vehicle 2.

According to the low floor articulated vehicle of the above embodiment,
The entire area of the cabin except for the cab, that is, the entire area of the side passenger cabin body 2 and the intermediate cabin body 3 can be made 100% low. Therefore, it can be used as a transportation suitable for barrier-free use. By the way, in the connecting portion between the vehicles, the horizontal bearings 53 and 63 allow the horizontal rotation, and the bearings enable the vertical rotation, so that the vehicle can run smoothly.

The low-floor articulated vehicle of the present invention is not limited to the configuration of the above-described embodiment, but can be changed as appropriate. For example, in the above-described embodiment, an example was described in which the cab body 1 at each end and the middle passenger cabin body 3 at the center were connected to each other via the end passenger cabin body 2 to form a five-body four-connected vehicle. The numbers of the intermediate cabin vehicle bodies 3 and the end passenger cabin vehicle bodies 2 interposed between the cab vehicle bodies 1 and 1 can be appropriately changed. For example, one vehicle may be added to each of the seven vehicles and six connected vehicles.

In the above-described embodiment, the example in which the driver's cab body 1 and the end passenger cabin body 2 are connected by the horizontally movable connecting device 5 has been described. Similarly, the horizontal and vertical movable connection device 6 may be used for connection between the vehicle and the intermediate cabin body 3.

[0027]

As described above in detail, according to the low-floor articulated vehicle of the present invention, it is possible to use a two-axis bogie bogie that has been used in the past, and make the entire passenger compartment have a low floor. .
Therefore, it can be used as a low floor articulated vehicle suitable for barrier-free use.

[Brief description of the drawings]

FIG. 1 is a schematic structural view of one embodiment of a low floor articulated vehicle of the present invention, wherein (a) is a plan view and (b) is a front view.

FIG. 2 is a schematic structural view of an example of a two-axis power bogie attached to the cab body of FIG. 1, wherein (a) is a plan view and (b)
Is a front view, and (c) is a side view.

FIG. 3 is a diagram showing an example of a conventional low floor articulated vehicle;
(A) is a plan view and (b) is a front view.

FIG. 4 is a schematic structural view showing a part of a conventional articulated vehicle in an enlarged manner, wherein (a) is a plan view and (b) is a front view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cab body of driver's cab 2 Cabin body near the end 3 Middle cabin body 4 Two-axis power trolley 5, 6 Horizontal movable connecting device A / B A car or B car CC car

Claims (2)

[Claims] 1. A railway in which a cab body is made independent of a cabin body and a horizontal movable connection device connects the cab body and the end cabin body and between the end cabin body and the intermediate cabin body. A vehicle, in which the cab body is arranged on a two-axis power bogie, the middle cabin body is arranged on an independent wheel-assisted bogie, and the side cabin body is provided in each of the cab body and the middle cabin body. A low-floor articulated vehicle characterized by being held. 2. The low floor articulated vehicle according to claim 1, wherein the cab body is non-rotatably fixed on a bolsterless two-axis power bogie from which a bolster beam and a center pin are omitted.