JP5383450B2 - Railway vehicle stepping device - Google Patents

Description

  The present invention relates to a railway vehicle step device.

  Conventionally, for example, when a passenger in a wheelchair gets on and off the train, if there is a step between the train and the platform or there is a large gap, it is difficult to get on and off with the wheelchair. Lifts the wheelchair and puts it on the train, or lowers it to the platform. However, if the level difference is large, it takes a considerable amount of force to lift the wheelchair, and in some cases, several station staff members are required.

  For this reason, although a station employee has used a crossing board between the entrance / exit part of a train and a platform, the burden reduction of a station employee is further desired.

  In view of this, there has been proposed a train getting-on / off crossing device that has a simple structure and can be manufactured at low cost, and that can be easily installed on a ready-made train (for example, see Patent Document 1).

JP 2002-187547 A

  In the device disclosed in Patent Document 1, a bridge plate is projected from the vehicle side onto the upper surface of the platform, and then the tip portion is rotated downward so that the tip portion contacts the upper surface of the platform. There is also a possibility that the tip of the cross board descends on the feet of the passengers in the room, which may annoy passengers waiting on the platform.

  In particular, in the case of existing vehicles, the difference in level between the platform and the vehicle is larger than that of the new model, making it easier for elderly people to get on and off the vehicle or to get on and off the vehicle using a wheelchair. It is requested to be. In that case, in consideration of the modification of the vehicle, the base frame is not provided with a large notch that allows the horizontal movement of the bridge plate as in the case of Patent Document 1. It is also necessary not to affect the strength.

  In addition, not only elderly passengers and wheelchair passengers but also regular passengers have a feeling of fear when the gap between the platform and the vehicle is wide, and there is a gap between the platform and the vehicle. It is desirable to reduce it.

  Therefore, the inventor does not hang a bridge plate between the entrance / exit part of the railway vehicle and the platform, but moves the step member from the bottom to the upper part to move the platform between the entrance / exit part of the railway vehicle and the platform. The present invention has been made with the idea that the elderly passengers and wheelchair passengers can easily and safely get on and off the railway vehicle by filling them with step members. .

  It is an object of the present invention to provide a railway vehicle step device that allows an elderly passenger or a wheelchair passenger to get in and out easily.

The invention of claim 1 includes a step member that is provided on a vehicle body frame below the entrance / exit of the railway vehicle and fills a gap formed between the entrance / exit of the railway vehicle and the platform when the railway vehicle stops. The step device for a railway vehicle, wherein the step member is located between a storage position stored in a side space below the vehicle body underframe, an entrance / exit portion of the railway vehicle, and the platform. An intermediate position disposed obliquely above the storage position and a fall prevention position disposed between the platform entrance / exit of the railway vehicle and the platform and above the intermediate position can be taken. between the position and the fall prevention position is configured to be moved by the drive device, wherein the operation of said step member by the drive device performs, the intermediate step member from said retracted position A first operation of moving up location, followed by the first operation, and a second operation for moving from the intermediate position in moving from the bottom to the top to the fall preventing position, said drive device, the A step base fixed to a lower side of the vehicle body frame and forming the side space; a step support member for supporting the step member; and provided between the step support member and the vehicle body frame. A first driving means for causing the step member to perform a first operation by moving the step support member to the platform side; and provided between the step support member and the step member; Second driving means for performing a second operation, wherein the first driving means is provided on the vehicle body frame and movably supports the step support member. And a first actuator linked to the movable support mechanism and causing the step member to perform the first operation, while the second driving means is provided between the step member and the step support member. A guide means for guiding the movement of the step member relative to the support member; and a second actuator provided between the step member and the step support member for causing the step member to perform the second operation. The vehicle body frame includes a first stopper member that contacts a part of the movable support mechanism when the step member is in the retracted position and restricts the movement of the movable support mechanism; and the step member A second stopper member that contacts the other part of the movable support mechanism and restricts the movement of the movable support mechanism when it is in the intermediate position and the fall prevention position It is characterized by providing . Here, “movement” includes linear movement, curved movement, and movement combining them.

  In this way, when the railway vehicle stops at a predetermined position of the platform and the passengers get on and off, the step member is moved from the bottom to the top to be the fall-preventing position, and the railway vehicle entrance / exit portion and the platform The gap is filled with a step member. This eliminates the fear of seeing the gap, and makes it possible to easily and safely get on and off the vehicle, including elderly passengers and wheelchair passengers. In particular, the step member is arranged between the entrance / exit part of the railway vehicle and the platform by moving from below to above, and only fills the gap formed between the entrance / exit part of the railway vehicle and the platform. Therefore, there is no possibility that the step member will be erroneously put on the feet of passengers waiting on the platform.

On the other hand, in a case other than when getting on and off, the step member is set to the storage position and can be stored in the side space below the vehicle body frame. There is no hindrance.

Further, the step member can be moved from the retracted position to the fall prevention position without difficulty by continuously performing the first and second operations by the driving device.

Since the step support member is used to cause the step member to perform the first and second operations by the first and second driving means, the movement between the storage position and the fall prevention position is simple. And can be realized smoothly.

Furthermore, the first driving means and the second driving means can be easily configured.

In addition, the movable range of the movable support mechanism can be regulated by providing the first and second stopper members on the vehicle body frame.

According to a second aspect of the present invention, the step member is held in a state along the step member at the retracted position and the intermediate position, while between the step member and the platform at the fall prevention position. It is also possible to have an auxiliary step member that can be passed over.

  In this way, when the gap is large between the vehicle and the platform, the auxiliary step member can be spanned between the step member and the platform.

As described above, the present invention is formed between the entrance / exit of the railway vehicle and the platform by setting the step member to a fall-preventing position by moving from below to above when the railway vehicle stops and passengers get on and off. Therefore, it is possible to easily get on and off an elderly person's vehicle or get on and off a vehicle using a wheelchair. On the other hand, in the other cases, the step member is stored in the side space below the vehicle body frame as the storage position, so that the step member does not hinder the traveling of the railway vehicle.

It is explanatory drawing which shows the positional relationship of the step member of the step apparatus for railcars which concerns on this invention, and the entrance / exit part of a railcar. 1 shows a railway vehicle step device according to the present invention, where (a) is a cross-sectional view taken along line BB in FIG. 2 (b), (b) is a cross-sectional view along line AA in FIG. 2 (a), and (c). Is a side view. It is a figure which shows the state which has a step member in the storage position A. FIG. It is a figure which shows the state which has a step member in the intermediate position. It is a figure which shows the state which has a step member in the fall prevention position B. It is explanatory drawing at the time of wheelchair passage, when the railway vehicle step apparatus which concerns on this invention is applied to a new type vehicle. It is explanatory drawing at the time of wheelchair passage, when the railway vehicle step apparatus which concerns on this invention is applied to the existing vehicle. (A) (b) is a figure similar to FIG. 2 (a) (c) which shows other embodiment, respectively. (A) and (b) are the figures which show the modification of a stopper member, respectively. 1 shows a railway vehicle step device according to the present invention, wherein (a) is a cross-sectional view taken along line DD in FIG. 10 (b), (b) is a cross-sectional view taken along line CC in FIG. 10 (a), and (c). Is a side view. It is operation | movement explanatory drawing of an auxiliary step member.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  As shown in FIGS. 1 and 2, reference numeral 1 denotes a railcar step device, which corresponds to the entrance 2a of the railway vehicle 2 and is below the entrance 2a that is opened and closed by the left and right doors 3A, 3B. The vehicle body frame 4 is provided.

  The step device 1 includes a step member 5 having a substantially T-shaped cross section that fills a gap S formed between the entrance / exit portion 2a of the railway vehicle 2 and the platform P when the railway vehicle 2 stops. The step member 5 has a storage position A (see FIG. 3) stored in the vehicle body frame 4 and is almost level with the floor of the railcar 2 due to the movement from the bottom to the top. The fall prevention position B (refer FIG. 5) arrange | positioned between the entrance / exit part 2a and the platform P can be taken selectively. The step member 5 is configured to be moved between the storage position A and the fall prevention position B by a driving device 11 described later. And the step member 5 has a width a little wider than the width | variety of the entrance / exit part 2a of the rail vehicle 2 for fall prevention (refer FIG. 1).

  The operation that the step member 5 performs by the driving device 11 is from the retracted position A (see FIG. 3) to the intermediate position C (see FIG. 4) between the entrance / exit portion 2a of the railway vehicle 2 and the platform P. A first movement that moves laterally and a second movement that moves from the intermediate position C to the fall prevention position B (see FIG. 5) are included. The second operation is an operation of the step member 5 following the first operation, and is an operation in which the step member 5 finally moves to the fall prevention position B through an operation of moving from the bottom to the top.

  Thus, the operation performed by the step member 5 includes a first operation in which the step member 5 moves laterally toward the platform P, and a second operation in which the step member 5 moves upright from the bottom following the first operation. A two-stage operation is performed.

  As shown in FIGS. 2A to 2C, the drive device 11 is provided on the step base 12, and the step base 12 is fixed to the vehicle body frame 4 by a fastener 13. In this embodiment, the fastener 13 is composed of a bolt and a nut. Further, a rubber bush or a spherical bearing is used for each connecting portion to be described later, as is well known.

  The drive device 11 includes a step support member 14 that supports the step member 5, and first drive means 21 that causes the step member 5 to perform the first operation by moving the step support member 14 to the platform P side. And a second driving means 31 for causing the step member 5 to perform the second operation.

  The first drive means 21 is provided between the left and right ends of the step support member 14 and the vehicle body frame 4. The first driving means 21 is provided on the vehicle body frame 4 and supports the step support member 14 so as to be movable, and a parallel link mechanism 22 linked to the parallel link mechanism 22. And a first air cylinder 23 (first actuator) that causes the step member 5 to perform the first operation via the. The parallel link mechanism 22 has a pair of link members 22A and 22B having one end portion rotatably connected to the bracket portion 14a of the step support member 14 and the other end portion rotatably connected to the bracket portion 12a of the step base 12. . A pullback spring 24 is provided between the step support member 14 and the vehicle body frame 4 in parallel with the first air cylinder 23. The pull-back spring 24 is provided so that the return operation of the first air cylinder 23 is quick and reliable. However, since the air cylinder 23 is a double-acting cylinder, it can be omitted.

  A first stopper that regulates the movement of the parallel link mechanism 22 by contacting the link member 22B, which is a part of the parallel link 22, when the step member 5 is at the storage position A, below the vehicle body frame 4. A member 25 is provided. On the other hand, on the upper side of the vehicle body frame 4, when the step member 5 is at the intermediate position C and the fall prevention position B, it contacts the link member 22 </ b> A which is the other part of the parallel link mechanism 22 and restricts the movement of the parallel link mechanism 22. A second stopper member 26 is provided.

  The second drive unit 31 is provided between the step support member 14 and the step member 5. The second driving means 31 includes a guide means 32 provided between the step member 5 and the step support member 14 for guiding the vertical movement of the step member 5 with respect to the step support member 14, A second air cylinder 33 (second actuator) provided between the step support member 14 and causing the step member 5 to perform the second operation is provided. The guide means 32 has a cylindrical member 32a provided on the step support member 14 and a rod-shaped member 32b fitted into the cylindrical member 32a so as to be slidable. The upper end of the rod-shaped member 32b and the step member 5 are provided. Are integrated by means such as screwing or press fitting.

  In addition, a pullback spring 34 is provided between the step member 5 and the step support member 14 in parallel with the second air cylinder 33. The retracting spring 34 is also provided so that the returning operation of the second air cylinder 33 is quick and reliable. However, since the air cylinder 33 is a double-acting cylinder, it can be omitted.

  Subsequently, the operation of the apparatus will be described.

  When the railway vehicle travels, as shown in FIG. 3, the step member 5 is in a storage position in which it is stored in the step base 12 below the vehicle body frame 4 together with the step support member 14.

  When the train arrives at the station, the railway vehicle stops, and the door of the entrance / exit is opened, the first air cylinder 23 extends. Thereby, in a state where the step member 5 is stored with respect to the step support member 14, the step member 5 draws an arc together with the step support member 14 by the action of the parallel link mechanism 22 having the two pairs of link members 22A and 22B. Thus, from the storage position A, the step member 5 is moved sideways to the platform P side in the state where it is stored in the step support member 14 (first operation), and as shown in FIG. The intermediate position C is located between the mouth 2a and the platform P.

  In this case, when the intermediate member C comes between the platform P and the vehicle and below the fall prevention position B, the link member 22A also comes into contact with the second stopper member 26 that functions as an upper limit stopper. The above movement is restricted.

  After that, the second air cylinder 33 is extended to move the step member 5 vertically upward and from bottom to top, so that the fall prevention position B is set as shown in FIG. 5 (second operation). . Also at this time, the link member 22A is in contact with the second stopper member 26. At the fall prevention position B, the step member 5 has an upper surface substantially flush with the floor surface of the vehicle entrance / exit 2a, and a gap formed between the platform 2a and the platform P of the railway vehicle 2 Fill S. Here, the step member 5 and the entrance / exit part 2a of the vehicle 2 hold the gap S of about 20 mm in advance, while the step member 5 is set so that the gap S between the platform P and the step member 5 is 20 to 30 mm. Depth is set.

  Thereby, the gap S formed between the entrance / exit part 2a of the railway vehicle 2 and the platform P is filled with the step member 5, and as shown in FIG. 6, the floor surface of the entrance / exit part 2a of the railway vehicle 2, Since the upper surface of the step member 5 and the upper surface of the platform P are substantially the same height, the wheelchair T easily moves between the platform P and the entrance / exit portion 2a of the railcar 2 by passing through the upper surface of the step member 5. It is possible, and even elderly people and children can get on and off safely. In this case, in the case of a new model vehicle as well as a manual wheelchair, it is possible to get on and off with an electric wheelchair.

  Moreover, even if the existing vehicle has a step between the floor surface of the entrance / exit 2a of the railway vehicle 2 and the upper surface of the platform P, the upper surface of the platform P is the floor surface of the entrance / exit portion 2a of the railway vehicle 2 ′. By making the height intermediate between the height and the height of the upper surface of the step member 5, as shown in FIG. 7, the operator who is skilled in handling the wheelchair T does not have to borrow the helper's power with the manual wheelchair T. Can also get on and off. Of course, the operation of the wheelchair becomes easier when the helper's help is used. The height of the step member 5 can be adjusted by adjusting the stroke amount of the second air cylinder 33.

  The present invention can be implemented with the following modifications in addition to the above embodiment.

  (i) As shown in FIGS. 8 (a) and 8 (b), the step member 5 and the rod-shaped member can be relieved so that stress generated in the vicinity of the connecting portion between the step member 5 and the guide means 32 can be relieved by an alignment error or an external force. It is also possible to couple 32b (guide means 32) with a pin 41. In this case, as shown in detail in FIGS. 9 (a) and 9 (b), the second stopper member 26 is used in combination with an elastic body (rubber) stopper 26A and a metal stopper 26B, so that an impact at the time of switching is applied. While mitigating, it is also possible to hold the step accurately at the end of the action. Similarly, the first stopper member 25 is a combination of an elastic body (rubber) stopper and a metal stopper.

  (ii) When applied to an existing vehicle, a step between the step member 5 and the upper surface of the platform P may cause a passenger's foot or the like to bite into the gap on the platform P side. The step member 5 may be provided with a plate-like cover 5a that fills the gap between the step member 5 and the platform P. The cover 5a is inclined so that the lower end portion is displaced by about 5 mm toward the platform P compared to the upper end portion. This is to make it difficult to bite even if the foot is in contact when the step member 5 is lowered.

  (iii) Since there is a case where the gap between the platform and the vehicle becomes wide due to the reason that the platform P is curved, etc., as shown in FIG. It is also possible to provide an auxiliary step member 51 that can be bridged between the member 5 and the platform P.

  The auxiliary step member 51 is held by the step member 5 in a state along the step member 5 when the step member 5 is at the storage position and the intermediate position, but when the step member 5 is at the fall prevention position. Can be bridged between the step member 5 and the platform P as required. The auxiliary step member 51 has a structure in which the plate member 51b is fixed to both sides of the plurality of reinforcing members 51a, and the tip portion of the pin member 42 provided on the step member 5 can slide to both side portions (between the plate members 51b) of the auxiliary step member 51. Is engaged. In the step member 5, a step guide 43 is provided immediately below the pin member 42 to guide the raising and lowering of the auxiliary step member 51 with each side portion of the auxiliary step member 51 interposed therebetween. The step guide 43 is constrained to prevent a large displacement (swing) from occurring in the depth direction when the auxiliary step member 51 moves up and down.

  When the auxiliary step member 51 is used, for example, a station staff first lifts the auxiliary step member 51 upward as indicated by an arrow X in FIG. At this time, the auxiliary step member 51 is raised while being guided by the step guide 43, and when it is completely raised, the guiding relationship of the step guide 43 with respect to the auxiliary step member 51 is released. Accordingly, the auxiliary step member 51 rotates around the pin member 42 toward the platform P as indicated by an arrow Y in FIG. 11 so that the tip of the auxiliary step member 51 comes into contact with the upper surface of the platform P. , It is suspended between the step member 5 and the platform P.

  Therefore, at a station where the gap between the step member 5 and the platform P is wide, the auxiliary step member 51 can be bridged between the step member 5 and the platform P to fill the gap. This is advantageous for safety.

  (iv) Although the drive device 11 is configured to use the air cylinders 23 and 33 as actuators, a hydraulic cylinder or an electric motor can be used.

  (v) The step member 5 and the step support member 14 can be interlocked with the opening and closing of the door by using an electrical detection means such as a sensor and making a series of movements while being electrically confirmed. Needless to say, you can.

  (vi) By selecting the cylinder pressure of the first and second air cylinders 23 and 33, for example, when rising from the retracted state, for example, the step support member 14 operates in a state where the supply air pressure is low. Then, after moving to the platform P side, the step member 5 can be lifted by high air pressure, and the reverse operation can also be performed by simply inserting a throttle valve or the like into the air circuit. .

  (vii) In the above-described embodiment, the variable support mechanism is a parallel link mechanism, but the present invention is not limited thereto, and the variable support mechanism is not made, for example, the link member 22A and the link member 22B have the same length, It is also possible to adopt a mechanism that moves in the same manner as the parallel link mechanism without being parallel.

DESCRIPTION OF SYMBOLS 1 Rail vehicle step apparatus 2 Rail vehicle 2a Entrance / exit part 3A, 3B Door 4 Body frame 5 Step member 11 Drive apparatus 12 Step base 14 Step support member 21 1st drive means 22 Parallel link mechanism (variable support mechanism)
23 first air cylinder 25 first stopper member 26 second stopper member 31 second driving means 32 guide means 33 second air cylinder 43 step guide 51 auxiliary step member P platform S clearance A retracted position B fall prevention Position C Intermediate position

Claims (2)

A railway vehicle step device provided with a step member that is provided on a vehicle body frame below a railway vehicle entrance and exit and that fills a gap formed between the railway vehicle entrance and exit and a platform when the railway vehicle stops. And
The step member is disposed obliquely above the stowed position between a stowed position stored in a side space below the vehicle body frame, and between the entrance / exit of the railway vehicle and the platform. An intermediate position and a fall-preventing position disposed between the platform entrance and exit of the railway vehicle and the platform and above the intermediate position can be taken, and between the storage position and the fall-preventing position. Is configured to be moved by a drive device ,
The operation performed by the step member by the driving device includes the first operation in which the step member moves from the retracted position to the intermediate position, and the intermediate position by movement from the bottom to the top following the first operation. And a second operation of moving from the fall position to the fall prevention position,
The drive device is provided on a step base that is fixed to a lower side of the vehicle body frame and forms the side space, a step support member that supports the step member, the step support member, and the vehicle body frame. Provided between the step support member and the step member; and a first drive means for moving the step support member toward the platform to cause the step member to perform a first operation. And a second driving means for causing the step member to perform the second operation,
The first driving means includes a movable support mechanism provided on the vehicle body frame and movably supporting the step support member; and a first drive means linked to the movable support mechanism to cause the step member to perform the first operation. The second drive means is provided between the step member and the step support member and guides the movement of the step member relative to the support member; and the step member. And a second actuator provided between the step support member and causing the step member to perform the second operation,
The vehicle body frame includes a first stopper member that contacts a part of the movable support mechanism when the step member is in the retracted position and restricts the movement of the movable support mechanism, and the step member is in the intermediate position. And a second stopper member that contacts the other part of the movable support mechanism and restricts the movement of the movable support mechanism when in the fall prevention position . The step member is held in a state along the step member at the retracted position and the intermediate position, and an auxiliary step member that can be bridged between the step member and the platform at the fall prevention position. The railway vehicle step device according to claim 1 , comprising:

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