Railway vehicle

The extendable handrail system addresses the safety issue of insufficient handrail protrusion by deploying outside the vehicle with a spring biasing mechanism, ensuring safe boarding and alighting while reducing costs and obstacles.

JP2025112579APending Publication Date: 2025-08-01NIPPON SHARYO LTD
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Patent Information

Application Number
JP2024006898
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-01-19
Publication Date
2025-08-01

AI Technical Summary

Technical Problem

Existing railway vehicle handrails do not sufficiently protrude outside the vehicle when doors are open, posing a safety risk for passengers boarding or alighting, especially when there is a large gap between the vehicle and the station platform.

Method used

A boarding and alighting handrail that is deployed outside the railway vehicle in synchronization with the opening and closing of doors, utilizing a spring biasing mechanism to extend and retract, ensuring safe use and compact storage inside the vehicle.

Benefits of technology

Ensures safe boarding and alighting by providing an extendable handrail that avoids obstacles and reduces costs through a simple, cost-effective mechanism, enhancing passenger safety and convenience.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a railway vehicle allowing passengers to get on / off at a passenger entrance safely.SOLUTION: A railway vehicle 1 provided with a door 29 that opens and closes at a passenger entrance 26 comprises a handrail 31 for passenger getting on / off, the handrail being deployed outside of the railway vehicle 1 in synchronization with opening and closing of the door 29 at the passenger entrance 26 and stored inside of the railway vehicle 1, and a spring hinge 40 that applies a biasing force of a spring 43 to the handrail 31 to deploy the handrail toward the outside of the railway vehicle 1.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present disclosure relates to a railway vehicle having handrails for boarding and alighting that are deployed outside the railway vehicle and stored inside the railway vehicle in synchronization with the opening and closing of doors at passenger entrances and exits. [Background technology]

[0002] Patent document 1 discloses a technology in which a pole, the upper end of which is fixed to a hinge, fits between the outer end of the door pocket on the vehicle body side and the sliding door when the sliding door is closed, but when the sliding door is open, it protrudes outside the vehicle body together with the hinge and is set as a handrail. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-269758 Summary of the Invention [Problem to be solved by the invention]

[0004] In the technology disclosed in Patent Document 1, the pole set as a handrail is compactly formed so that it fits between the outer end of the car body side door pocket and the sliding door when the sliding door is closed. Therefore, there is a risk that the handrail will not protrude sufficiently when it protrudes outside the car body when the door is open. Therefore, even if passengers hold onto the handrail (i.e., the pole) at the passenger entrance when boarding or alighting, there is a risk that passengers will not be able to board or alight safely if there is a large gap between the railway vehicle and the station platform.

[0005] Therefore, the present disclosure has been made to solve the above-mentioned problems, and aims to provide a railway vehicle that allows passengers to board and disembark safely at passenger boarding and alighting doors. [Means for solving the problem]

[0006] To achieve the above object, the railway vehicle of the present disclosure has the following configuration. (1) In a railway vehicle provided with a door that opens and closes at a passenger boarding and alighting opening, at the passenger boarding and alighting opening, a boarding and alighting handrail that is deployed outside the railway vehicle and stored inside the railway vehicle in synchronization with the opening and closing of the door is provided.

[0007] In the present disclosure, when the door is opened, the boarding and alighting handrail is deployed outside the railway vehicle, so that passengers can board and alight from the railway vehicle while holding the boarding and alighting handrail. Therefore, even at a location where the gap between the railway vehicle and the station platform is wide, passengers can safely board and alight from the railway vehicle at the passenger boarding and alighting opening by holding the boarding and alighting handrail.

[0008] (2) The railway vehicle according to (1) has a spring biasing mechanism that applies a biasing force of a spring that expands the boarding and alighting handrail outward from the railway vehicle. When the door is closed, the boarding and alighting handrail is blocked by the door and stored inside the railway vehicle, and when the door is open, the boarding and alighting handrail is released from the door and expands outward from the railway vehicle by the biasing force of the spring.

[0009] In the present disclosure, by utilizing the biasing force of the spring generated by the spring biasing mechanism and the opening and closing of the door, the boarding and alighting handrail can be deployed outside the railway vehicle and stored inside the railway vehicle. Therefore, a mechanism for driving the boarding and alighting handrail with a simple structure can be constructed. Thus, safe boarding and alighting of passengers at the passenger boarding and alighting opening can be realized while reducing costs.

[0010] (3) In the railway vehicle according to (2), it is preferable that the boarding and alighting handrail is attached to the spring biasing mechanism provided inside the railway vehicle.

[0011] In the present disclosure, since the handrail for boarding and alighting is attached to the inner side of the railway vehicle, when the door is closed, the handrail for boarding and alighting can be compactly stored inside the railway vehicle. Therefore, when the door is closed, the handrail for boarding and alighting does not get in the way outside the railway vehicle.

[0012] (4) In the railway vehicle according to (1) or (2), it is preferable that the handrail for boarding and alighting is formed in a U shape.

[0013] In the present disclosure, by adjusting the diameter of the pipe shape to a size that is easy for passengers to hold, it becomes easier for passengers to hold the handrail for boarding and alighting. Therefore, passengers can board and alight more safely at the passenger boarding and alighting opening.

[0014] (5) In the railway vehicle according to (1) or (2), it is preferable that the handrail for boarding and alighting is provided on both sides in the left - right direction of the passenger boarding and alighting opening.

[0015] In the present disclosure, regardless of the position in the left - right direction of the passenger boarding and alighting opening, passengers can board and alight from the railway vehicle safely while holding the handrail for boarding and alighting.

[0016] (6) In the railway vehicle according to (1) or (2), it is preferable that the handrail for boarding and alighting is provided only on one side in the left - right direction of the passenger boarding and alighting opening.

[0017] In the present disclosure, for example, by providing the handrail for boarding and alighting only on the priority seat side in the left - right direction of the passenger boarding and alighting opening, passengers using the priority seat (such as the elderly or disabled people) can board and alight from the railway vehicle safely while holding the handrail for boarding and alighting.

[0018] Also, since the handrail for boarding and alighting is provided only on one side in the left - right direction of the passenger boarding and alighting opening, a wider area where passengers can board and alight can be secured at the passenger boarding and alighting opening. Therefore, it becomes easier for passengers to board and alight smoothly at the passenger boarding and alighting opening.

Advantages of the Invention

[0019] According to the railway vehicle of the present disclosure, passengers can board and disembark safely at the passenger entrance and exit. [Brief explanation of the drawings]

[0020] [Figure 1] FIG. 1 is a side view of a railway vehicle according to an embodiment of the present invention. [Figure 2] FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, showing the state when the door is closed. [Figure 3] FIG. 3 is a view corresponding to FIG. 2, showing the door open. [Figure 4] FIG. [Figure 5] FIG. 1 is a diagram showing the passenger entrance and exit doors and their surroundings when the train is stopped at a station and the doors are closed. [Figure 6] FIG. 1 is a diagram showing a passenger entrance and exit and its surroundings when the doors are beginning to open while the train is stopped at a station. [Figure 7] FIG. 1 is a diagram showing the passenger boarding / alighting door and its surroundings when the doors have finished opening when the train is stopped at a station. [Figure 8] FIG. 1 is a diagram showing a passenger entrance and exit and its surroundings when the doors are open while the train is stopped at a station. [Figure 9] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0021] An embodiment of a railway vehicle according to the present disclosure will be described.

[0022] (Regarding railway vehicles) First, a description will be given of the schematic configuration of a railway vehicle 1 according to this embodiment. As shown in Fig. 1, the railway vehicle 1 has a vehicle body structure 11 and a bogie 12 that supports the vehicle body structure 11.

[0023] The vehicle body structure 11 is configured to form a hexahedron by an underframe 21, a front end body structure 22, a junction body structure 23, a pair of side bodies 24, and a roof body structure 25.

[0024] The underframe 21 forms the floor of the railway vehicle 1. The front end body structure 22 is erected at one end of the underframe 21 in the track direction (the left end in FIG. 1 ) and forms the front portion of the vehicle body structure 11. The transverse end body structure 23 is erected at the other end of the underframe 21 in the track direction (the right end in FIG. 1 ) and forms a coupling portion of the vehicle body structure 11. The pair of side body structures 24 are erected at both ends of the underframe 21 in the sleeper direction and form the side portions of the vehicle body structure 11. The roof body structure 25 is joined to the upper end of the front end body structure 22, the upper end of the transverse end body structure 23, and the upper ends of the pair of side body structures 24 and forms the roof portion of the vehicle body structure 11.

[0025] Further, on the side of the vehicle body structure 11, there are provided a passenger entrance / exit door 26 and a window 27 leading to a passenger compartment 28 (an example of an interior space of the vehicle).

[0026] The passenger entrance / exit door 26 is formed in a rectangular shape so that two doors 29, one on the left and one on the right, slide to open and close in the longitudinal direction of the vehicle (i.e., the left-right direction of the passenger entrance / exit door 26, the "track direction" shown in FIG. 1). A plurality of passenger entrance / exit doors 26 (for example, three) are formed in the side structure 24.

[0027] (Regarding handrails for boarding and disembarking) When the railway vehicle 1 is stopped at a station, there may be a large gap between the railway vehicle 1 and the station platform PF (i.e., the platform). In this case, it is not optimal from a safety standpoint for passengers to board and disembark by holding onto a handrail (not shown) installed inside the railway vehicle 1 (i.e., inside the passenger compartment 28), so passengers can board and disembark more safely if there is a handle that passengers can hold onto when boarding and disembarking.

[0028] Therefore, in this embodiment, handrails 31 for boarding and alighting that are actuated in synchronization with the opening and closing of doors 29 are provided as handles for passengers to hold when boarding and alighting. Specifically, railcar 1 has handrails 31 that are deployed outside railcar 1 and stored inside railcar 1 in synchronization with the opening and closing of doors 29.

[0029] 2 and 3, this handrail 31 is attached to a spring hinge 40 provided on the inside of the railway vehicle 1 (i.e., at a position inside the passenger compartment 28 relative to the door 29), and is driven by the biasing force of a spring 43 built into the spring hinge 40. The length L of the handrail 31 is, for example, 30 to 40 cm.

[0030] 4, the spring hinge 40 includes a first plate 41 and a second plate 42. The spring hinge 40 includes a spring 43 inside a cylindrical portion 44, and the biasing force of the spring 43 causes the second plate 42 to rotate (drive) relative to the first plate 41 around the central axis CL of the cylindrical portion 44. The spring 43 is, for example, a coil spring. The spring hinge 40 is an example of a "spring biasing mechanism" of the present disclosure.

[0031] 2 and 3, the handrail 31 is attached to the second plate 42 of the spring hinge 40. The spring hinge 40 applies a biasing force of a spring 43 to the handrail 31, causing it to expand toward the outside of the railway vehicle 1.

[0032] In this way, the handrail 31 is urged toward the outside of the railway vehicle 1 by the urging force of the spring 43 of the spring hinge 40, but when the door 29 is closed, it is blocked by the door 29 and stored inside the railway vehicle 1 as shown in Figure 2 (i.e., the handrail 31 extends in the longitudinal direction of the vehicle, parallel to the door 29). At this time, the contact portion 31a provided on the tip side of the handrail 31 is in contact with the door 29.

[0033] On the other hand, when the door 29 is open, as shown in FIG. 3, the boarding and alighting handrail 31 is released from the door 29 and rotates about the central axis CL by the biasing force of the spring 43 of the spring hinge 40, and unfolds outside the railway vehicle 1 (that is, the boarding and alighting handrail 31 protrudes from the outer surface of the side structure across the gap between the vehicle body from inside the vehicle to above the platform and extends in the vehicle width direction). At this time, the contact portion 26a provided at the passenger boarding and alighting opening 26 is in contact with the boarding and alighting handrail 31.

[0034] Also, it is conceivable to use a combination of the spring hinge 40 and a torque hinge (not shown) or a damper hinge (not shown), or to use only a torque hinge (not shown) or a damper hinge (not shown) without using the spring hinge 40. Thereby, when the boarding and alighting handrail 31 unfolds outside the railway vehicle 1, it is suppressed from unfolding suddenly.

[0035] Here, the torque hinge includes a first plate and a second plate similar to the spring hinge 40, and is a mechanism having a function of holding the second plate at an arbitrary angle with respect to the first plate. The damper hinge also includes a first plate and a second plate similar to the spring hinge 40, and is a mechanism having a function of suppressing the opening and closing speed of the second plate with respect to the first plate. The torque hinge and the damper hinge are examples of the "spring biasing mechanism" of the present disclosure.

[0036] Further, as shown in FIGS. 5 to 9, in this embodiment, the boarding and alighting handrail 31 is formed by bending a pipe into a U shape in a side view, the bent portion (the bottom of the U shape) forms the tip of the boarding and alighting handrail 31, and both ends (the upper ends of the U shape) are attached to the second plate 42 of the spring hinge 40.

[0037] Therefore, when the railway vehicle 1 is stopped at a station, the state in which the boarding and alighting handrail 31 is deployed will be described. First, as shown in FIG. 5, when the door 29 is closed, the boarding and alighting handrail 31 is stored inside the railway vehicle 1 and is not deployed outside the railway vehicle 1. Then, as shown in FIG. 6, when the door 29 starts to open, the boarding and alighting handrail 31 is still stored inside the railway vehicle 1 and is not deployed outside the railway vehicle 1. After that, as shown in FIG. 7, when the door 29 finishes opening, the boarding and alighting handrail 31 starts to be deployed outside the railway vehicle 1. Eventually, as shown in FIG. 8, when the door 29 is completely open, the boarding and alighting handrail 31 is deployed outside the railway vehicle 1.

[0038] After that, when the boarding and alighting of passengers at the passenger boarding and alighting opening 26 is completed and the door 29 starts to close, the boarding and alighting handrail 31 starts to be stored inside the railway vehicle 1. Then, eventually, when the door 29 is completely closed, as shown in FIG. 5, the boarding and alighting handrail 31 is stored inside the railway vehicle 1.

[0039] Note that, in the examples shown in FIGS. 5 to 8, the boarding and alighting handrail 31 is provided on both sides in the left - right direction (i.e., the track direction shown in FIG. 1) of the passenger boarding and alighting opening 26. However, it is not limited to this. As a modification, as shown in FIG. 9, it may be provided only on either one side in the left - right direction of the passenger boarding and alighting opening 26. In the example shown in FIG. 9, the boarding and alighting handrail 31 is provided only on the priority - seat side in the left - right direction of the passenger boarding and alighting opening 26.

[0040] (Regarding the effects of this embodiment) As described above, the railway vehicle 1 of this embodiment has a boarding and alighting handrail 31 that is deployed outside the railway vehicle 1 and stored inside the railway vehicle 1 in synchronization with the opening and closing of the door 29 at the passenger boarding and alighting opening 26.

[0041] In this way, as shown in FIG. 8, when the door 29 is opened, the boarding and alighting handrail 31 is deployed outside the railway vehicle 1, so that passengers can board and alight from the railway vehicle 1 while holding the boarding and alighting handrail 31. Therefore, even in a place where the gap between the railway vehicle 1 and the platform PF of the station is wide, or even for passengers with weak legs and waist or the elderly, by holding the boarding and alighting handrail 31, passengers can safely board and alight from the railway vehicle 1 at the passenger boarding and alighting opening 26.

[0042] Also, when the door 29 is closed, the boarding and alighting handrail 31 is stored inside the railway vehicle 1, so it does not get in the way outside the railway vehicle 1 (for example, the platform PF of the station where the railway vehicle 1 stops, etc.). Furthermore, for example, when the railway vehicle 1 is running, it is not exposed to wind and rain and does not get dirty, so passengers can use it without worrying about getting dirty when it is deployed, and passengers in the passenger compartment 28 can also use the boarding and alighting handrail 31 as a handrail for maintaining their posture.

[0043] The railway vehicle 1 also has a spring hinge 40 that applies the biasing force of a spring 43 for deploying the boarding and alighting handrail 31 outward from the railway vehicle 1 with respect to the boarding and alighting handrail 31. The boarding and alighting handrail 31 biased by the spring 43 of the spring hinge 40 is blocked by the door 29 and stored inside the railway vehicle 1 when the door 29 is closed. Also, when the door 29 is open, the boarding and alighting handrail 31 is released from the door 29 and deployed outside the railway vehicle 1 by the biasing force of the spring 43.

[0044] In this way, by utilizing the biasing force of the spring 43 generated by the spring hinge 40 and the opening and closing of the door 29, the boarding and alighting handrail 31 can be deployed outside the railway vehicle 1 and stored inside the railway vehicle 1. Therefore, a mechanism for driving the boarding and alighting handrail 31 with a simple structure can be constructed. Thus, it is possible to realize safe boarding and alighting of passengers at the passenger boarding and alighting opening 26 while reducing costs.

[0045] Also, the boarding and alighting handrail 31 is attached to a spring hinge 40 provided on the inner side of the railway vehicle 1.

[0046] In this way, since the boarding and alighting handrail 31 is attached to the inner side of the railway vehicle 1, when the door 29 is closed, the boarding and alighting handrail 31 can be compactly stored inside the railway vehicle 1. Therefore, when the door 29 is closed, the boarding and alighting handrail 31 does not get in the way outside the railway vehicle 1.

[0047] Also, the boarding and alighting handrail 31 is formed in a U shape by bending a pipe.

[0048] Thereby, by setting the diameter of the pipe to a thickness that is easy for passengers to hold, it becomes easier for passengers to hold the boarding and alighting handrail 31. Therefore, passengers can board and alight more safely at the passenger boarding and alighting opening 26. Also, since it is formed in a pipe shape, cost reduction can be achieved, and the boarding and alighting handrail 31 can be lightened and easily attached to the spring hinge 40.

[0049] Also, since the boarding and alighting handrail 31 is provided on both sides in the left - right direction of the passenger boarding and alighting opening 26, regardless of the position in the left - right direction of the passenger boarding and alighting opening 26, passengers can board and alight from the railway vehicle 1 safely while holding the boarding and alighting handrail 31.

[0050] Also, since the boarding and alighting handrail 31 is provided only on one side in the left - right direction of the passenger boarding and alighting opening 26, for example, by providing the boarding and alighting handrail 31 only on the priority seat side in the left - right direction of the passenger boarding and alighting opening 26, passengers such as the elderly or disabled people who use the priority seat can board and alight from the railway vehicle 1 safely while holding the boarding and alighting handrail 31.

[0051] Also, since the boarding and alighting handrail 31 is provided only on one side in the left - right direction of the passenger boarding and alighting opening 26, a wider area where passengers can board and alight can be taken at the passenger boarding and alighting opening 26. Therefore, it becomes easier for passengers to board and alight smoothly at the passenger boarding and alighting opening 26.

[0052] Note that the above - described embodiments are merely examples and do not limit the present disclosure in any way. It goes without saying that various improvements and modifications are possible without departing from the gist thereof.

[0053] For example, even in the case of a railway vehicle 1 in which a coupling structure 23 is erected at both ends in the track direction of the underframe 21 of the vehicle body 11 (the left end and the right end in FIG. 1), the content of the present disclosure can be applied.

Explanation of reference numerals

[0054] 1 Railway vehicle 11 Vehicle body 24 Side structure 26 Passenger boarding and alighting opening 26a Contact part 29 Door 31 Handrail for boarding and alighting 31a Contact part 40 Spring hinge 41 First plate 42 Second plate 43 Spring

Claims

1. In a railway vehicle provided with a door that opens and closes at a passenger entrance and exit, at the passenger entrance and exit, there is a handrail for boarding and alighting that is deployed outside the railway vehicle and stored inside the railway vehicle in synchronization with the opening and closing of the door. A railway vehicle characterized by the above.

2. In the railway vehicle according to Claim 1, it has a spring biasing mechanism that applies the biasing force of a spring for deploying the boarding and alighting handrail outward from the railway vehicle, the boarding and alighting handrail when the door is closed, is blocked by the door and stored inside the railway vehicle, when the door is open, is released from the door and deployed outside the railway vehicle by the biasing force of the spring. A railway vehicle characterized by the above.

3. In the railway vehicle according to Claim 2, the boarding and alighting handrail is attached to the spring biasing mechanism provided inside the railway vehicle. A railway vehicle characterized by the above.

4. In the railway vehicle according to Claim 1 or 2, the boarding and alighting handrail is formed in a U shape. A railway vehicle characterized by the above.

5. In the railway vehicle according to Claim 1 or 2, the boarding and alighting handrail is provided on both sides in the left - right direction of the passenger entrance and exit. A railway vehicle characterized by the above.

6. In the railway vehicle according to Claim 1 or 2, the boarding and alighting handrail is provided on only one side in the left - right direction of the passenger entrance and exit. A railway vehicle characterized by the above.

Citation Information

Patent Citations

  • Handrail for vehicle sliding door

    JP2010269758A