JPH0745396Y2 - Railway vehicle side entrance / exit step device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a railway vehicle side entrance / exit that serves as a foothold when passengers get in and out of the railway vehicle side entrance / exit as appropriate toward the platform.

(Prior Art) In conventional railway transportation, railway vehicles with significantly different dimensions travel on the same route, except in the case of temporary cargo transportation as shown below, which is an example for commercial vehicles. There is no. In the case of temporary cargo transportation, for example, a large vehicle (used to mean a vehicle with a large vehicle cross section; the same applies below) may be forwarded. In this case, a dolly of a large vehicle is transferred to a small vehicle (“vehicle”). It is used to mean a vehicle with a small cross section. The same shall apply hereafter), adjust the height of the coupler, etc. to the scale of the route on which the small vehicle runs, and run the vehicle limit measurement vehicle in advance. Then, after moving or removing the obstacles on the traveling route, a large vehicle is towed by a locomotive or the like.

Except in these special cases, conventional rail transport
Railroad cars with significantly different dimensions did not travel on the same route.

However, recently, an attempt has been developed to run commercial railway vehicles having significantly different dimensions on the same track. For example, a small commercial railway vehicle is about to run on a large commercial railway vehicle route. In this case, for example, as shown in FIG. 4, the gap S between the large vehicle platform 2 and the side entrance / exit of the small vehicle 4 becomes large, and therefore, it is necessary to provide a step to be a foothold for passengers in this gap. There is.

As a means for providing the step, it is conceivable that a flange-shaped step is fixedly attached to the outside of the side entrance / exit within the limit of the vehicle width dimension within the limit of the large vehicle. However, when the steps are fixedly attached in this way,
There is no problem when traveling only on the route for the large vehicle 5, but when trying to travel on the route for the small vehicle 4, the fixed step may collide with the platform 6 for the small vehicle, which is not practical. .

Therefore, as shown in FIG. 4, means for horizontally moving the step unit 8 in and out from the lower portion of the side entrance / exit of the vehicle 4 by an air cylinder or the like can be considered.

(Problems to be solved by the invention) However, in such a means, the space for accommodating the step unit 8 is only under the floor structural member of the vehicle, and the step unit 8 is horizontally arranged from this position.
Therefore, the upper surface of the step unit 8 is lower than the upper surface of the large vehicle platform 2 by about h = 60 to 100 mm, which is not practical.

The present invention has been made in order to eliminate the disadvantages of the above-described conventional technology, and when a small vehicle runs on a route for a large vehicle, the gap between the vehicle and the platform and the step between the floor surface of the vehicle and the platform are reduced. However, it is an object of the present invention to provide a step device for a side entrance / exit of a railway vehicle, which is capable of ensuring safety when passengers get on and off and can also travel on a route for small vehicles.

(Means for Achieving the Object) In order to achieve such an object, the present invention provides a moving step unit that serves as a scaffolding for passengers to get on and off, and a moving step unit that forms a gap between a railway vehicle and a platform. In the step device for the side entrance / exit of a railway vehicle, which comprises a means for properly putting in and taking out to and from the position, the moving step unit is a movable step plate which is a direct foothold for passengers, and the taking means is connected to the rear end portion. , A moving frame where the substrate is fixed to the lower part of the tip side,
It is composed of a flexible bag having an inflatable and retractable hollow portion, and is connected to an air supply / exhaust pipe for introducing and discharging a fluid, and the movable step plate is moved to the moving frame by the fluid pressure of the hollow portion. The fluid pressure bag for moving up and down, an elastic member for assisting the downward movement of the movable step plate, and an up and down guide member for guiding the up and down movement of the movable step plate by the fluid pressure bag and the elastic member. The plate is indirectly attached to the upper end of the moving frame on the distal end side through the fluid pressure bag mounted on the substrate, the upper and lower guide members, and the elastic member.

(Operation) In such a step device for a side entrance of a railroad vehicle according to the present invention, since the moving step unit can be moved up and down by using the fluid pressure bag formed of the flexible bag body, a small-sized railroad vehicle The step device for a small vehicle can be compactly housed in a space with a very small height below the floor member at the side entrance / exit, and the moving step unit is housed in the space below the floor member. It is possible to drive safely on a small vehicle route without colliding with a platform or the like.

In addition, when a small railway vehicle equipped with such a step device travels on a railway line larger than that and stops on a platform for the railway vehicle, the moving step unit is placed under a gap below the floor member. The movable step plate in the moving unit is pushed up to the vicinity of the upper surface of the platform by using the fluid pressure bag, while making it pop out from the space toward the platform by means of taking in and out. Therefore, the step and the gap between the floor of the vehicle and the platform are eliminated, and the passenger can safely get on and off.

(Embodiment) Hereinafter, the present invention will be described in detail based on an embodiment shown in the drawings.

FIG. 1 is a schematic perspective view of a step device for a railway vehicle side entrance / exit according to an embodiment of the present invention, FIG. 2 is a sectional view of an essential part of the step device according to the same embodiment, and FIG. 3 is a rail vehicle side. It is a front view of a doorway.

As shown in FIG. 1, a step device 10 for a side entrance of a railway vehicle according to an embodiment of the present invention is a moving step unit.
11 and a pressure cylinder 13 as a means for moving the moving step unit 11 back and forth along the guide rail 12.

The guide rail 12 and the pressure cylinder 13 are installed in the clearance space 16 below the floor member 15 at the railway vehicle side entrance / exit 14 shown in FIGS.
When the position 17 is most retracted, the moving step unit 11 is also safely accommodated in the gap space 16. The gap space 16 is a space surrounded by the floor member 15, the side entrance / exit post 15a, and the side beam 15b as shown in FIG.

The moving step unit 11 has a movable step plate 18 that serves as a direct foothold for passengers, and a moving frame 19 to which the movable step plate 18 is attached on the upper end side. A rod 17 driven by the pressure cylinder 13 is connected to the rear end of the moving frame 19, so that the entire moving step unit 11 reciprocates along the guide rail 12 in accordance with the movement of the rod 17 in the longitudinal direction. Has become. A sliding member such as a linear bearing 20 is mounted between the moving frame 19 and the guide rail 12 to smoothen the reciprocating movement of the moving step unit 11. The pressure cylinder 13 is driven by air pressure or fluid pressure such as hydraulic pressure to reciprocate the rod 17 in the longitudinal direction.

A substrate 21 is fixed to the lower portion of the moving frame 19 on the front end side. On this board 21, a fluid pressure bag 22 and a vertical guide tube are provided.
23 and return spring 24 are fitted. The movable step plate 18 described above is not directly attached to the moving frame 19, but is indirectly attached to the moving frame 19 via the fluid pressure bag 22, the vertical guide tube 23, and the return spring 24.

As shown in FIG. 2, the fluid pressure bag 22 has a hollow portion inside.
It is configured by a flexible bag body having 25, and bulges when a fluid pressure is applied to the hollow portion 25, and pushes the movable step plate 18 upward with respect to the moving frame 19. By removing the fluid pressure in the hollow portion 25 of the fluid pressure bag 22,
22 contracts, the movable step plate 18 moves downward, and the entire movable step unit 11 is ready to be housed in the gap space 16 below the floor member 15. The hollow portion 25 of the fluid pressure bag 22
The fluid pressure is introduced into and discharged from the inside through the air supply / exhaust pipe 26 shown in FIG. Examples of the fluid pressure include air pressure and hydraulic pressure.

The upper and lower guide cylinders 23 have an outer cylinder 23a and an inner cylinder 23b as shown in FIG.
The inner cylinder 23b fixed to the one substrate 21 is movably inserted into the outer cylinder fixed to the other movable step plate 18 so that the vertical movement of the movable step plate 18 is guided. Has become.

The return spring 24 is mounted between the movable step plate 18 and the substrate 21, and assists the downward movement of the movable step plate 18. A flange 18a is provided at the tip of the movable step plate 18. The flanging 18a has a shape that conforms to the shape of the lower wall surface 27 of the side entrance / exit 14 of the vehicle, and when the entire moving step unit 11 is housed in the clearance space 16 below the floor member 15, this flange is formed. The opening 18a of the gap space 16 is closed by the opening 18a.

Such a small-sized railway vehicle equipped with the step device 10 for the side entrance and exit of the railway vehicle according to the present embodiment has a small step device 10 with the moving step unit 11 accommodated in the space below the floor member. It is possible to drive safely on a small vehicle route without colliding with a vehicle platform or the like.

In addition, when a small railroad vehicle to which such a step device 10 is attached travels on a railroad track of a larger size than that and stops on the platform 2 for it, steps in the following order. The device 10 is activated.

(1) When opening the opening / closing door 14a (shown in FIG. 3) at the side entrance / exit 14, first, the pressure cylinder 13 shown in FIG. 1 as the loading / unloading means is driven to move the moving step unit 11 to the platform 2 direction. Make it pop out.

(2) Move step unit with limit switch
The protrusion amount of 11 is detected, and the movement of the movement step unit 11 is stopped at a predetermined position.

(3) The fluid pressure is introduced into the fluid pressure bag 22 to raise the movable step plate 18.

(4) The ascending position of the movable step plate 18 is detected by the limit switch, and the ascending movement of the movable step plate 18 is stopped.

(5) After the above operation is completed, the opening / closing door 14a of the side entrance / exit 14 is completely opened.

(6) Passengers get off on platform 2.

(7) The opening / closing switch of the opening / closing door 14a is closed, and the opening / closing door 14a is closed.

(8) Release the fluid pressure in the fluid pressure bag 22 and return the spring.
Using the spring force of 24, the movable step plate 18 is moved downward.

(9) The limit switch detects that the movable step plate 18 has sufficiently descended, and stops the descending movement of the movable step plate 18.

(10) The pressure cylinder 13 is driven to horizontally move and store the entire moving step unit 11 in the clearance space 16.

(11) Release the security device.

(12) Start the vehicle.

It should be noted that the present invention is not limited to the above-described embodiments, but can be variously modified within the scope of the present invention.

For example, the type of the opening / closing door 14a of the vehicle is not limited to the normal sliding door type, but may be a plug-in type.

(Effect of the Invention) As described above, according to the present invention, since the moving step unit can be moved up and down by using the fluid pressure bag constituted by the flexible bag body, the small-sized railway vehicle entrance / exit It can be compactly stored in a space with a very small height below the floor member in, and does not collide with the platform when traveling on a normal route.
It is possible to drive safely. In addition, when traveling on a line larger than that line, the moving step unit is made to pop out from the clearance space below the floor member toward the platform by means of taking in and out, and a fluid pressure bag is used to Since the movable step plate is pushed up to near the upper surface of the platform, the steps and gaps between the floor of the vehicle and the platform are reduced,
Passengers can get on and off safely.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a step device for a side entrance of a railway vehicle according to an embodiment of the present invention, FIG. 2 is a sectional view of a main part of the step device according to the embodiment, and FIG. 3 is a railway vehicle side. FIG. 4 is a front view of the doorway, and FIG. 4 is a schematic view showing an example of a conventional step device. 2 ... Platform, 10 ... Step device, 11 ... Moving step unit, 12 ... Moving frame, 13 ... Pressure cylinder, 14 ... Side entrance, 14a ... Open / close door, 15 ...
Floor member, 16 ... Gap space, 18 ... Movable step plate, 19 ...
… Movable frame, 22 …… Fluid bag.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References Shown 54-139407 (JP, U) Shown 52-6001 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A moving step unit (11) which is installed in a clearance space (16) below a floor member (15) at a side entrance (14) for a railway vehicle and serves as a scaffolding for passengers to get on and off, A railway vehicle side entrance / exit step device comprising a moving step unit (11) for taking in and out of a moving step unit (11) to and from a position of a gap between a railway vehicle and a platform (2) as appropriate. ) Is a movable step plate (18) which is a direct scaffold for passengers, a moving frame (19) having a rear end to which the loading / unloading means (13) is connected, and a base plate (21) fixed to a lower end side, The movable step plate (18) is connected to an air supply / exhaust pipe (26) configured by a flexible bag having an inflatable / contractible hollow part (25) and introducing and discharging a fluid. 19) against A fluid pressure bag (22) that moves up and down by the fluid pressure of the hollow portion (25), an elastic member (24) that assists the downward movement of the movable step plate (18), and the fluid pressure bag (22) and the elastic member. (24) has a vertical guide member (23) for guiding the vertical movement of the movable step plate (18), and the movable step plate (18) includes the fluid pressure plate mounted on the substrate (21). Bag (2
2), the upper and lower guide members (23), and the elastic member (24)
A step device for a side entrance / exit of a railway vehicle, which is indirectly attached to the upper end of the moving frame (19) through the above.