JPH0744521Y2 - 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 for the meaning of "vehicles with a small cross section. The same applies to the following)", adjust the height of the coupler, etc. to the size of the route on which the small vehicle runs, and run the vehicle limit measurer in advance. Then, after moving or removing the obstacles on the running route, the large vehicle is towed by the locomotive.

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, as shown in FIG. 5, for example, 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 such a step is fixedly attached,
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. 5, a means for horizontally moving the step unit 8 in and out from the lower 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 that can ensure the safety of passengers getting on and off and can also travel on a track for a small vehicle.

(Means for Solving the Problems) In order to achieve such an object, the present invention is installed in a clearance space below a floor member at a side entrance of a railway vehicle, and is appropriately disposed from the clearance space toward a platform. It jumps out and is located in the gap between the railway car and the platform,
In a step device for a side entrance and exit of a railway vehicle, which serves as a foothold when passengers get in and out through a door that opens and closes the side entrance and exit, a movable step plate that directly serves as a foothold for passengers, and a moving frame to which the movable step board is attached on the upper end side A substrate fixed to the tip of the moving frame, a parallel link mechanism for moving the movable step plate up and down with respect to the moving frame, and a direction mounted between the movable step plate and the substrate to assist the downward movement of the movable step plate. And a moving step unit provided with a return spring for urging elastic force to the moving frame, and a means for connecting / disconnecting the moving step unit to / from the platform from the gap space toward the platform. The mechanism has one end rotatably mounted on a rotating shaft attached to the tip side of the moving frame,
The other end has a plurality of links rotatably mounted on a rotary shaft provided on the back side of the movable step plate, and the tip of a lock driven forward and backward is rotated on a rotary shaft provided on the back side of the movable step plate. The pressure cylinder is movably mounted and is rotatably mounted via a rotary shaft on the substrate with a predetermined slight inclination with respect to the horizontal plane.

(Operation) A small-sized railway vehicle equipped with such a step device for a side entrance of a railway vehicle according to the present invention has a movable step unit housed in a clearance space below a floor member,
The step device can safely travel on the small vehicle route without colliding with the small vehicle 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 parallel link mechanism while making it pop out from the space toward the platform by means of taking in and out. Therefore, there is no step or clearance between the floor of the vehicle and the platform, and passengers can get on and off safely.

(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 side entrance / exit of a railway vehicle according to an embodiment of the present invention, FIGS. 2 and 3 are cross-sectional views of essential parts of the step device according to the same embodiment, and FIG. 4 is a railway vehicle. It is a front view of a side entrance.

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 clearance 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 frame 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 base end 21 is fixed to the lower portion on the front end side of the moving frame 19. A return spring 24 is mounted on the substrate 21.
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 parallel link mechanism and the return spring 24.

The parallel link mechanism is composed of four links 22 and pressure cylinders 23 in this embodiment. The lower end of each link 22 has a rotating shaft 22a attached to the tip side of the moving frame 19.
It is rotatably attached to. Also, the upper end of each link 22
Rotating shafts 22 provided on the back side of the movable step plate 18 respectively
It is rotatably attached to b. Therefore, each link 22
By rotating in the direction of arrow A shown in FIG. 2, the movable step plate 18 moves upward with respect to the moving frame 19.

In order to operate such a parallel link mechanism, in this embodiment, a predetermined slight inclination is provided with respect to the substrate 21 and the pressure cylinder 23 is rotatably mounted on the substrate 21 via a rotary shaft 25. I am doing it.

This pressure cylinder 23 for driving the pressure cylinder 23
A supply / exhaust pipe 23a is connected to. Pressure cylinder 23
Examples of the fluid that drives the motor include air and oil. The tip of the rod 26 driven by the pressure cylinder 23 is rotatably mounted on a rotary shaft 28 provided on the back side of the movable step plate 18. When the rod 26 is extended by the pressure cylinder 23, each link 22 is rotated in the direction of arrow A as shown in FIG. 2, so that the rotation shaft 28 at the tip of the rod 26 is movable.
At the same time, the pressure cylinder 23 moves upward in the direction of arrow B, and at the same time, the pressure cylinder 23 also rotates downward in the direction of arrow C with the pivot shaft 25 as a fulcrum. In this case, the pressure cylinder 23
Although it jumps out below 21, there is no problem because the entire moving step unit 11 jumps out of the gap tube space 16. When the rod 26 contracts by the pressure cylinder 23, each link 22 rotates downward in the direction of arrow A, so that the rotating shaft 28 moves downward in the direction of arrow B together with the movable step plate 18, and at the same time, the pressure cylinder 23 also rotates. It is adapted to rotate upward in the arrow C direction with the moving shaft 25 as a fulcrum. When the pressure cylinder 23 rotates upward in the direction of arrow C, the pressure cylinder 23 lays in a slightly inclined state, so that the moving unit 11 as a whole is placed in the space 16 as shown in FIG. It is convenient because it does not get in the way when it is housed in.

The return spring 24 is attached to the tubes of the movable step plate 18 and the substrate 21 to assist the downward movement of the movable step plate 18. A frame is attached to the tip of the movable step plate 18.
18a is provided. The flanging 18a has a shape conforming to the shape of the lower wall surface 27 of the side entrance / exit 14 of the vehicle, and when the whole moving step unit 11 is housed in the lower space 16 of the underfloor 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 by limit switch Step unit 11
Is detected, and the movement of the movement step unit 1 is stopped at a predetermined position.

(3) The pressure cylinder 23 is driven, and the movable step plate 18 is raised by the link mechanism.

(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 opened.

(6) Passengers get off on platform 2.

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

(8) The rod 26 of the pressure cylinder 23 is contracted and the movable step plate 18 is moved downward by utilizing the spring force of the return spring 24.

(9) The limit switch detects that the movable step plate 18 has been sufficiently lowered, and stops the downward 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) Make the vehicle oscillate.

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.

(Effects of the Invention) As described above, according to the present invention, the step device is provided even when the clearance between the platform and the side entrance / exit of the vehicle travels on a normal route suitable for passengers getting on and off. It is possible to drive safely without colliding with the platform. Moreover, when traveling on a line for a line larger than that line, the moving step unit is made to pop out from the lower clearance space of the floor member toward the platform by means of taking in and out, and a parallel link mechanism is used to move the moving unit. Since the step plate is pushed up to the vicinity of the upper surface of the platform, a step and a gap between the floor surface of the vehicle and the platform are reduced, and passengers can safely get on and off.

Further, since the pressure cylinder of the parallel link mechanism is mounted rotatably via the rotary shaft on the board with a predetermined slight inclination with respect to the horizontal plane, it is extremely high below the floor member at the entrance / exit of the railway vehicle. The device can be compactly housed in a small clearance space.

[Brief description of drawings]

FIG. 1 is a schematic perspective view of a step device for a side entrance / exit of a railway vehicle according to an embodiment of the present invention, FIGS. 2 and 3 are cross-sectional views of main parts of the step device according to the same embodiment, and FIG. 4 is a railway vehicle. FIG. 5 is a schematic view showing an example of a conventional step device, and FIG. 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 ...
… Moving frame, 22 …… Link, 23 …… Pressure cylinder.

 ─────────────────────────────────────────────────── ─── 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 rail vehicle side entrance (14) is installed in a clearance space (16) below a floor member (15), and jumps out from the clearance space (16) toward a platform (2) as appropriate. Located in the gap between the rail car and the platform,
A step device for a side entrance / exit of a railway vehicle, which serves as a foothold when passengers get on and off from a door (14a) that opens and closes the side entrance (14), a movable step board (18) and a movable step board that directly serve as a foothold for passengers. The moving frame (19) having the (18) mounted on the upper end side, the substrate (21) fixed to the leading end of the moving frame (19), and the movable step plate (18) are the moving frame (19).
A parallel link mechanism that moves up and down with respect to each other, and a return that is mounted between the movable step plate (18) and the substrate (21) and urges elastic force in a direction to assist the downward movement of the movable step plate (18). Transfer step unit (11) with spring (24)
And a means (13) for connecting / disconnecting the moving step unit (11) to / from the platform (2) from within the clearance space (16) as appropriate, the parallel link mechanism. Has one end rotatably mounted on a rotary shaft (22a) attached to the tip side of the moving frame (19) and the other end provided on the back side of the movable step plate (18). A plurality of links (22) rotatably mounted on (22b) and a rotating shaft (28) provided with the tip of a rod (26) driven to move back and forth on the back side of the movable step plate (18).
And a pressure cylinder that is rotatably mounted on the base plate (21) and is rotatably mounted via a rotary shaft (25) on the substrate (21) with a predetermined slight inclination with respect to the horizontal plane. A step device for a side entrance / exit of a railway vehicle.