JP7250295B1 - Steps and platforms - Google Patents

Abstract

A step eliminating machine and a platform capable of easily eliminating a step with a small driving force are provided. A level difference elimination machine 100 is a level difference elimination machine 100 embedded in a platform, and an end of a rotation surface 110 moves up and down by axial rotation of a rotation surface 110 by an inverted V-shaped link mechanism 300. A drive unit 540, a slide drive unit 550 that slides the telescopic surface 120 from the rotation surface 110, a contact sensor 520 and a distance sensor 530 provided on the rotation surface 110, a drive unit 540, a slide drive unit 550, and a contact sensor. and a control unit that controls the sensor 520 and the distance sensor 530, and the control unit starts driving the driving unit 540 according to information from at least one of the contact sensor 520 and the distance sensor 530, and then slides. It drives the drive unit 550 . [Selection drawing] Fig. 2

Description

The present invention relates to step elimination machines and platforms.

For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2022-55909), a device that protrudes a step that fills the gap between the vehicle and the platform from the underside of the vehicle has a fixed length of the step, and is installed at each station. Disclosed is an assist device for getting on and off that improves the case where a changing gap cannot be properly filled.

The boarding assist device described in Document 1 is a boarding assist device that is placed under an underframe of a vehicle and fills a gap between the vehicle and the platform, and comprises a top plate, a bellows-type telescopic part fixed to the top plate, It has an air control section for letting air into and out of the bellows type expandable section and a guide section for regulating the movement of the top plate, and the length of the top plate changes according to the gap between the vehicle and the platform.

For example, Patent Document 2 (Japanese Patent Application Laid-Open No. 2021-41827) discloses that even if there are variations in gaps and steps between the platform edge of the station and the vehicle entrance/exit, the gaps and steps are reduced. A system is disclosed.

The gap and step reduction system described in Document 2 is a gap and step reduction system for reducing the gap and step between the edge of the platform of the station and the vehicle entrance and exit, and is a gap and step reduction system between the platform edge and the vehicle entrance. A detection unit for detecting the amount of clearance and the amount of step, a slide elevation unit provided at the edge of the platform corresponding to the door position of the vehicle stopping at the station, and a control unit for controlling the movement of the slide elevation unit The slide elevation unit has an extended state in which the tip side is raised while extending toward the vehicle side, and a storage state in which the tip side is not extended, and the amount of protrusion in the extended state and the amount of elevation of the tip side can be adjusted. The controller adjusts the amount of protrusion and the amount of elevation in the extended state based on the amount of clearance and the amount of step that have been detected.

For example, in Patent Document 3 (Japanese Patent Laid-Open No. 5-42869), when a passenger is positioned on a moving step member, when a passenger is positioned on the step member and the drive unit fails, etc. , a platform step device to ensure passenger safety is disclosed.

The platform step device described in Document 3 is a platform step device that closes a gap between a vehicle and the edge of the platform. and an in-and-out drive unit that advances and retracts the slide table from the lower side of the platform to the lower position of the gap. A step member is provided through the upper surface of the platform, and an elevating driving unit is provided in the elevating operation unit for elevating the step member between a height position corresponding to the upper surface of the platform and a position below the gap.

For example, Patent Document 4 (Japanese Unexamined Patent Application Publication No. 2002-104175) discloses that the device configuration is relatively simple, the installation work is easy, and the specification change of the device can be easily changed. Disclosed is a boarding aid that can be integrated with a vehicle.

The boarding assist device described in Document 4 is installed at a position on a platform corresponding to an entrance of a stopped vehicle, and includes a platform door that opens and closes when the vehicle stops, and a door pocket that houses the platform door. A boarding assist device applied to the system, which is arranged below the platform door on the platform corresponding to the boarding/alighting entrance of the stopped vehicle, is installed so that the upper surface is aligned with the platform surface, and the vehicle side end is the platform. a homestep unit supported so as to be tiltable so as to rise from the surface; and a homestep unit slidably mounted in the homestep unit so as to advance toward the entrance/exit when the vehicle is stopped and the homestep unit when the vehicle is absent. a first drive mechanism provided in the home step unit for advancing/retreating the step; and a second drive mechanism for raising/lowering the vehicle side end of the home step unit. and the second drive mechanism is provided in the door pocket.

For example, Patent Document 5 (Japanese Patent Application Laid-Open No. 2002-37055) discloses that the device configuration is relatively simple, the installation work is easy, and the specification change of the device can be easily changed. Disclosed is a boarding aid that can be integrated with a vehicle.

The boarding assist device described in Document 5 is installed at a position corresponding to the boarding/alighting entrance of a stopped vehicle on a platform, and includes a platform door that opens and closes when the vehicle stops, and a door pocket that houses the platform door. A boarding assist device applied to the system, which is arranged below the platform door on the platform corresponding to the boarding/alighting entrance of the stopped vehicle, is installed so that the upper surface is aligned with the platform surface, and the vehicle side end is the platform. a homestep unit supported so as to be tiltable so as to rise from the surface; and a homestep unit slidably mounted in the homestep unit so as to advance toward the entrance/exit when the vehicle is stopped and the homestep unit when the vehicle is absent. a first drive mechanism provided in the home step unit to advance/retreat the step; and a first drive mechanism arranged below the home step unit and positioned on the vehicle side of the home step unit. It comprises a second drive mechanism for raising/lowering the end, the first drive mechanism, and a control section for controlling the second drive mechanism, wherein the control section is provided in the door pocket. .

For example, in Patent Document 6 (Japanese Patent Laid-Open No. 2005-225310), it is possible to close the gap between the platform and the vehicle, and at the same time connect the step surface of the vehicle and the upper surface of the platform with a smooth slope, and Disclosed is a clearance adjustment device between a vehicle and a platform that is easy to install, shortens the construction period, and is inexpensive.

The clearance adjustment device described in Document 6 is installed on a platform, and in the clearance adjustment device for adjusting the clearance between the vehicle and the platform, one end is rotatably supported by a machine frame installed on the platform, A step plate is provided at the other end of the step plate for adjusting the clearance between the vehicle and the platform by swinging the other end in the vertical direction according to the position of the floor of the vehicle, and a drive mechanism for swinging the step plate is provided on the machine frame. is.

For example, Patent Document 7 (Japanese Unexamined Patent Application Publication No. 9-20235) discloses a train boarding/alighting assist device that enables a wheelchair user to easily and safely board/alight from a train while moving in a wheelchair.

The train boarding/alighting assist device described in Patent Document 7 includes a slope plate whose tip edge is located at the track-side end of the platform corresponding to the entrance/exit of the stopped vehicle and whose top surface is aligned with the top surface of the platform, and the slope plate. A tilting device that tilts so that the tip edge rises to the height of the floor surface of the entrance/exit, an advance/retreat drive device that moves the slope plate to a position where the tip edge reaches the platform-side edge of the floor of the entrance/exit, and this advance/retreat drive and a damping device provided in the device for moving the slope plate back and forth following the rocking motion of the vehicle.

JP 2022-55909 A JP 2021-41827 A JP-A-5-42869 JP 2002-104175 A JP-A-2002-37055 Japanese Patent Application Laid-Open No. 2005-225310 JP-A-9-20235

Although the technique described in Patent Document 1 employs a bellows type, it is considered that the bellows type is difficult to return to origin and has a high risk of failure. In addition, although the technique described in Patent Document 2 or Patent Document 3 employs a pandagraph-type lifting system, there remains the problem that the movement against weight is slow and failure increases as the speed is increased.
Further, in the technology of Patent Document 4 or Patent Document 5, the second drive mechanism appears in the evacuation area on the platform or under the platform, so it cannot be said to be user-friendly.
The technique of Patent Literature 6 requires the first connecting rod and the second connecting rod, and requires a driving device with large power. Similarly, the technique of Patent Document 7 requires a driving device with large power.

Also, in recent years, in reality, in order to eliminate steps, station staff carry ramps to accommodate passengers in wheelchairs. There is a big problem that there is no technology that can withstand the environment and be realized.

SUMMARY OF THE INVENTION In view of these problems, an object of the present invention is to provide a step eliminating machine and a platform that can easily eliminate a step with a small driving force.

(1)
A level difference elimination machine according to one aspect is a level difference elimination machine embedded in a platform, and includes a vertical lifting mechanism in which an end portion of the lifting part moves up and down by axial rotation of an inverted V-shaped link mechanism, and a lifting part. A control unit that controls a sliding mechanism that slides a part of the end portion, a detection sensor that is composed of a plurality of sensors provided in the lifting unit, and the vertical lifting mechanism, the sliding mechanism, and the detection sensor. The section drives the slide mechanism after starting to drive the vertical lifting mechanism according to information from at least one of the plurality of sensors of the detection sensor.

In this case, since the end of the lifting section is moved up and down by the inverted V-shaped link mechanism, it can be driven with a slight driving force. As a result, the number of motor revolutions of the driving device can be reduced, and cost reduction can be realized.
In addition, with the conventional Panda Graph method, since the points of action are connected, the adjustment becomes complicated, and the lift mechanism itself needs to be moved greatly when the extension operation is performed. There were many. Furthermore, there is also a problem that the applied load becomes large because the portions that serve as the points of action are connected.
On the other hand, the step-removing machine of the present invention can reduce the load at the point of action by means of the reverse V-shaped link mechanism, and can perform the extension operation after the pivoting operation. can be simplified.

(2)
A step eliminating machine according to a second aspect of the invention is a step eliminating machine according to one aspect, wherein the vertical lifting mechanism further includes a maintenance mechanism, and in the case of maintenance, the maintenance mechanism rotates the end of the lifting section by 90 degrees by rotating the shaft. It may also include a maintenance rotation mechanism that can rotate close to it.

In this case, it is possible to easily carry out maintenance of the vertical lifting mechanism, the sliding mechanism, the detection sensor, and the like of the step elimination device.

(3)
A step-removing machine according to a third aspect of the present invention is a step-removing machine according to one aspect, wherein a trapezoidal screw or a ball screw may be used for the driving part of the vertical lifting mechanism and/or the sliding mechanism.

In this case, the step eliminating device can be driven without causing abnormal wear. In particular, the use of trapezoidal screws of size TM20 ensures reliable driving of the drive.
In particular, a trapezoidal screw may be used in the up-and-down mechanism because the load is large, and a ball screw may be used in the slide mechanism because the load is light.

(4)
A level difference elimination machine according to a fourth aspect of the invention is a level difference elimination machine according to one aspect, in which the control unit comprises: train type, train timetable, train floor height, platform height, platform door, month, day , the day of the week, the time of day, the climate, and the weather.

In this case, the control unit of the step elimination machine can realize optimum driving in the shortest time by AI learning. In addition, for example, it is possible to realize a setting operation with a margin within a maximum of 5 seconds during the stop time and within the time when the train doors are opened.

(5)
A platform equipped with a step-removing machine according to another aspect of the invention is obtained by arranging a plurality of the step-removing machines according to the first to fourth aspects of the invention in parallel.

In this case, by arranging a plurality of step elimination machines in parallel on the platform, it is possible to cope with various trains. In addition, the optimum number of level difference elimination machines can be provided at required locations.

It is a schematic diagram showing an example of a platform provided with a step elimination machine according to the present embodiment. FIG. 2 is a schematic plan view showing an example of the internal mechanism of the step eliminating machine according to the present embodiment; FIG. 3 is a schematic diagram showing an example of a state before the step elimination machine is driven; FIG. 4 is a schematic diagram showing an example of a driving state of the step elimination machine in the first stage; FIG. 10 is a schematic diagram showing part of the state before the second step of the step eliminating machine is driven; FIG. 4 is a schematic diagram showing an example of details of a link mechanism; FIG. 3 is a schematic diagram showing an example of a mechanism model of a link mechanism; FIG. 4 is a schematic structural diagram showing an example of control of a control section of the step elimination machine according to the present embodiment; 4 is a flowchart showing an example of control by a control unit; FIG. 5 is a schematic explanatory diagram showing an example of the operation of the emergency origin return device; FIG. 4 is a schematic explanatory diagram showing an example of maintenance of the step elimination machine; FIG. 4 is a schematic explanatory diagram showing an example of the relationship between contact surface pressure and sliding speed; FIG. 4 is a schematic explanatory diagram showing the relationship between the self-response load time (during driving) and the allowable rotation speed; It is a schematic diagram which shows an example of a step elimination machine failure prediction system and AI maintenance algorithm generation. It is a schematic diagram which shows an example of a step elimination machine failure prediction system and AI maintenance algorithm generation. It is a schematic diagram which shows an example of a step elimination machine failure prediction system and AI maintenance algorithm generation.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description, the same parts are given the same reference numerals. Their names and functions are also the same. Therefore, detailed description thereof will not be repeated.

[Embodiment]
FIG. 1 is a schematic diagram showing an example of a platform 200 equipped with a step eliminating machine 100 according to this embodiment. 1(a) is a schematic plan view of the platform 200, and FIG. 1(b) is a schematic side view of the platform 200. FIG.

(Platform 200)
As shown in FIG. 1, a recess G200 is formed in a part of the platform 200, and three level difference elimination machines 100 are arranged in parallel. In the present embodiment, the step eliminating device 100 is fixed to the concave portion G200 with anchor bolts (not shown).
In addition, according to the present invention, in a train arriving at the platform 200, a plurality of the step elimination machines 100 may be arranged according to the width of the wheelchair-accessible place.
In addition, as shown in FIG. 1B, one or more grooves G10 are formed in the bottom surface of the recess G200. The groove G10 is formed so that water such as rain can flow to the track side.

In addition, a metal plate or mortar having a thickness of several millimeters is placed around the level difference elimination machine 100 so that the level difference between the end face PH of the platform 200 and the top surface 130 (see FIG. 3) of the level difference elimination machine 100 is 5 mm or less. A mating portion 290 such as a slope portion may be provided.

(Step elimination machine 100)
FIG. 2 is a schematic plan view showing an example of the internal mechanism of the step eliminating machine 100 according to this embodiment.

As shown in FIG. 2, the step elimination device 100 includes a rotating surface 110, an elastic surface 120, an upper surface 130 (see FIG. 3), a link mechanism 300, a contact sensor 520, a distance sensor 530, two driving units 540, It has a D screw shaft pusher 545 , a rotating housing 546 , one slide driving part 550 , an extendable pusher 555 and rollers 600 .

In this embodiment, the rotating surface 110 is made of a stainless steel member having a thickness of about 6 mm. The expandable surface 120 is made of a stainless steel member having a thickness of about 6 mm. The upper surface 130 is made of a stainless steel member with a thickness of about 4 mm.

Details of the link mechanism 300 will be described later. The contact sensor 520 is provided on the entire end portion of the elastic surface 120 . The contact sensor 520 need only be arranged on the track side of the platform 200, and need not necessarily be provided on the entire surface.
The contact sensor 520 preferably has a waterproof structure, and may be of either a differential transformer (LVDT) type or a scale type.
Also, a proximity switch for detecting a train and a distance may be incorporated integrally with the contact sensor 520 or separately. By providing the proximity switch, the step eliminating machine 100 can be stopped safely without coming into contact with the train. It is preferable to select a sensor that activates when the proximity switch is more than 5 mm±10% away.

Conventionally, as an interlock function, a tape switch or a contact-type sensor has been mainly used for detecting when the top part contacts the train so that the step elimination machine 100 does not come into contact with the train for safety. However, in this case, it cannot be detected unless it comes into contact with the train. Alternatively, there is a problem that the body of the train is damaged, which leads to the breakage of the step eliminating device 100 or the like.
On the other hand, by incorporating a proximity switch, the telescopic surface 120 can be stopped with a minimum gap of about 1 mm to 3 mm with respect to the train. That is, it is possible to prevent the elastic surface 120 from coming into contact with the train, and prevent damage to the body of the train and/or the step elimination device 100 .

Next, two distance sensors 530 in the present embodiment are provided at the end portion of the rotating surface 110 at a predetermined interval. The distance sensor 530 is provided so as to rotate together with the operation of a rotation surface, which will be described later.
The distance sensor 530 preferably has a waterproof structure, and may be of any of the lidar method, millimeter wave method, ultrasonic wave method, and stereo camera method.

Next, the two drive units 540 consist of motors. Similarly, the slide driving section 550 is composed of a motor.
Further, the D screw shaft pusher 545 according to the present embodiment is formed from a D screw shaft having a trapezoidal screw (TM) size TM18 or larger. The reason for this will be described later.

A plurality of rollers 600 are provided to support the elastic surface 120 when it is protruded or retracted from the rotation surface 110, so that the elastic surface 120 can move smoothly, as will be described later. It is

(Outline of operation of level difference elimination machine 100)
FIG. 3 is a schematic diagram showing an example of the state before driving the step eliminating machine 100, FIG. 4 is a schematic diagram showing an example of the driving state of the step eliminating machine 100 in the first stage, and FIG. FIG. 3 is a schematic diagram showing part of the state before the second step of the step elimination machine 100 is driven.

As shown in FIG. 3, the step eliminating device 100 has a rotating surface 110 and an upper surface 130 arranged horizontally. In addition, a frame 190 is formed as a frame in the lower part of the step eliminating machine 100, and legs 195 are provided on the frame 190. As shown in FIG. As a result, the total height of the groove G10 and the leg portion 195 in FIG. 1 can suppress the influence of rainwater and the like. Further, although the frame 190 is shown separately in FIG. 3, it is not limited to this and may be formed integrally.

Next, as shown in FIG. 4, the drive unit 540 operates, the D screw shaft pusher 545 is extended, and the tip of the rotation surface 110 is rotated by the link mechanism 300 in the direction of the arrow R10. That is, the rotation surface 110 is pivotally supported on the upper surface portion 130 side so as to be rotatable in the direction of the arrow R10. In this embodiment, the rotation angle is preferably from 1 degree to 15 degrees, and the maximum rotation angle in this embodiment is 8 degrees. In this case, since the distance sensor 530 is provided at the tip of the rotating surface 110, the rotating surface 110 moves as well.

Then, as shown in FIG. 5, the slide drive unit 550 operates, and the expandable surface 120 expands in the direction of arrow S10. In this embodiment, the extension distance is preferably 100 mm or more and 500 mm or less, and the maximum extension distance in this embodiment is 300 mm. This extension distance corresponds to the measurement result of the distance sensor 530, which will be described later.

3 to 5, the level difference between the floor of the train and the upper surface or end face PH of the platform 200 is eliminated by the level difference elimination machine 100, and after a predetermined time, the steps shown in FIGS. The step elimination machine 100 is stored in order.
As described above, the step eliminating device 100 according to the present embodiment has the merit that it is easy to ensure the strength with a simple structure due to the extension operation and the rotation operation.
In this embodiment, FIGS. 4 and 5 are disclosed as separate operations, but the present invention is not limited to this. good. As a result, steps can be eliminated in a short period of time.

(Link mechanism 300)
Next, FIG. 6 is a schematic diagram showing an example of details of the link mechanism 300, and FIG. 7 is a schematic diagram showing an example of a mechanism model of the link mechanism 300. As shown in FIG.

As shown in FIG. 6 , link mechanism 300 includes first link 310 , second link 320 , fixed shaft 315 , link shaft 325 and shaft 335 .
As shown in FIG. 6, when drive unit 540 is not operating, rotation surface 110 is substantially parallel to frame 190 (recess G200).
Then, when the driving part 540 operates, the D screw shaft pusher 545 is extended. As a result, since the shaft 335 is pushed out and the fixed shaft 315 is fixed, the link shaft 325 moves upward. As a result, the rotation surface 110 is rotated in the direction of the arrow R10 (see FIG. 4) due to the upward movement of the link shaft 325. As shown in FIG.

7A, when the drive unit 540 does not operate and the rotation surface 110 is horizontal, the distance L31 of the first link 310, the distance L32 of the second link 320, the fixed shaft 315 and the shaft 335, and the vertical distance from the horizontal plane of the fixed shaft 315 and the shaft 335 to the link shaft 325 is h1.
Then, as shown in FIG. 7B, when the drive unit 540 operates and the rotation surface 110 moves, the distance Ln′ (Ln>Ln′) between the fixed shaft 315 and the shaft 335 and the distance between the fixed shaft 315 and the shaft The vertical distance from the horizontal plane of 335 to the link axis 325 is h2 (h2>h1).
In this case, the fixed shaft 315 can be considered as a fulcrum, the link shaft 325 as a point of action, and the shaft 335 as a force point. Further, by setting the link ratio between the distance L31 of the first link 310 and the distance L32 of the second link 320 to be 2:3, when the target rated load is W, the applied load is 3/2W. Become.
That is, if the distance L31 has a length of 2, the distance L32 has a length of 3 (the ratio of L31 and L32 is 2:3). Assuming that the angle Θ formed by the distance L31 and the distance L32, the force F2 on the shaft 335 is calculated using the load force F0 applied to the link shaft 325, force F2=F0×1/2 (tan 1/2Θ) can be expressed as
The angle Θ is determined by the distance L31, the distance L32, the height h2 of the link shaft 325, and the position of the shaft 335.

In addition, with the conventional Panda Graph method, since the points of action are connected, the adjustment becomes complicated, and the lift mechanism itself needs to be moved greatly when the extension operation is performed. There were many. Furthermore, there is also a problem that the applied load becomes large because the portions that serve as the points of action are connected.
On the other hand, the step eliminating machine 100 according to the present invention can reduce the load at the point of action, and can perform the extending operation after the rotating operation, so that the mechanism of the uneven eliminating machine 100 itself can be simplified. can.

(control unit 500)
Next, FIG. 8 is a schematic structural diagram showing an example of control of the control section 500 of the step eliminating machine 100 according to the present embodiment.

As shown in FIG. 8, the control unit 500 of the step elimination machine 100 according to the present embodiment includes a recording unit 510, a contact sensor 520, a distance sensor 530, a driving unit 540, a slide driving unit 550, and an emergency origin return device 560. communicate with each of the Communication is preferably wired, but may be wireless. The relationship between control unit 500 and emergency origin return device 560 will be described later.
Further, the control unit 500 according to the present embodiment has an AI learning function, determines the optimum operation of the step elimination machine 100 from the past data of the recording unit 510, and drives it. Details of the detailed data in the recording unit 510 will be described later.

The control unit 500 in the present embodiment does not need to be built inside the step elimination machine 100 . The control unit 500 may be built in as long as it can communicate with each of the recording unit 510, the contact sensor 520, the distance sensor 530, the driving unit 540, the slide driving unit 550, and the emergency origin return device 560. may be provided separately.
Further, as shown in FIG. 1, since the level difference elimination machines 100 may be arranged in parallel, the controller 500 for each of the level difference elimination machines 100 may be provided as one. When provided, it is desirable that the control units 500 be in a state of being able to communicate with each other.
This is because, for example, it is desirable to stop driving the other level difference eliminating machines 100 in the case of maintenance or failure in one level difference eliminating machine 100 among the level difference eliminating machines 100 arranged in parallel.

The recording unit 510 contains information including train type, train timetable, train floor height, platform height, platform door, month, date, day of the week, time, climate, weather, and the like.
In addition, data from surveillance cameras installed in the station premises are used for machine learning, deep learning, deep learning, YOLO, R-CNN, HOG, DETR (End-to-End Object Detection with Transformers), SSD (Single Shot MultiBox Detector), DCN, etc. may be used to calculate the number of people, and may include information obtained by estimating the congestion status of the train and the congestion status of each vehicle. Furthermore, information such as the number of people at the station in front of the platform 200 equipped with the step elimination machine 100, that is, the station upstream from the train, the congestion situation, the current floor height of the train, etc. may be included.

In addition, the platform height depends on the type of train, the height of the floor of the train, the condition of the track, whether the platform is curved, whether a large number of people will get off from a crowded train, whether a large number of people will board, etc. Information such as whether there is a person getting on using the step eliminating machine 100 or whether there is a person getting off using the step eliminating machine 100 is also included.
When getting on, it is preferable that the height is the same as the floor of the train or several millimeters higher.
Therefore, when a train arrives, many people get off the train. Subtle control may be performed so that the height is equal to or a few millimeters higher than the height of the floor.

Further, in the recording unit 510, the type, operation, driving time, open/close timing, etc. of platform doors installed to prevent passengers from falling from the platform 200 are recorded. This data is necessary for the control unit 500 to operate the step elimination device 100 so as not to hinder the operation of the platform doors.
Furthermore, the month, date, day of the week, time, climate, weather, and the like recorded in the recording unit 510 are associated with information such as changes in the number of people and congestion. Although not shown, the degree of congestion of department stores, commercial facilities, event venues, restaurants, etc. near the station building may be associated with the number of fixed cameras or mobile GPS. Thereby, congestion information etc. can be estimated according to a person's movement. Furthermore, it acquires not only the history of people using wheelchairs but also manual or electric baby strollers, acquires information such as from frequently used stations to visited stations, and acquires information such as the distance from the step elimination device 100 upstream to the visited destination downstream. information may be transmitted to the step elimination machine 100.
Furthermore, although not added in this embodiment, an alarm device is installed to call attention by voice, or please get in and get off safely. etc. may be notified.

(Example of operation of control unit 500)
FIG. 9 is a flowchart showing an example of control by the control unit 500. As shown in FIG.

First, the control unit 500 acquires train information and the like based on the information from the recording unit 510 (step S1). Next, the control unit 500 acquires platform door information such as whether the platform doors have been driven (step S2).
Subsequently, control unit 500 acquires sensor detection from contact sensor 520 and/or distance sensor 530 (step S3).
Here, the control unit 500 may perform temperature correction according to the type of sensor. That is, it is desirable to perform temperature correction for sensors having outdoor temperature characteristics.
The control unit 500 checks whether the contact sensor 520 has a contact history and determines whether the distance data from the distance sensor 530 matches the train information in the recording unit 510 .

Next, the control unit 500 starts driving the driving unit 540 (step S4). Then, the control unit 500 drives the slide driving unit 550 to start sliding (step S5). Passengers in wheelchairs board and alight smoothly here.
Next, when the platform doors begin to close and the train doors begin to close, the slide drive unit 550 is driven to start sliding storage. Note that the sliding storage may be started before the platform doors start to close or before the train doors start to close.
Finally, the control unit 500 drives the drive unit 540 to store the step elimination device 100 (step S7).

(Emergency origin return device 560)
10A and 10B are schematic explanatory diagrams showing an example of the operation of the emergency origin return device 560. FIG.

As shown in FIG. 10(a), in normal cases, the emergency origin return device 560 does not operate, and a part of the D screw shaft pusher 545 and/or the telescopic pusher 555 has the emergency origin return device 560. It is locked with a pin shape.
Next, as shown in FIG. 10(b), when the control unit 500 determines that there is an emergency, the emergency origin return device 560 is operated. In this case, emergency origin return device 560 operates, and the pin shape rotates in the direction of arrow R50.
Furthermore, as shown in FIG. 10(c), the emergency origin return device 560 operates, the pin shape rotates in the direction of the arrow R50, and detaches from part of the D screw shaft pusher 545 and/or the telescopic pusher 555. . As a result, the D screw shaft pusher 545 and/or the telescopic pusher 555 automatically moves the rotating surface 110 and the telescopic surface 120 of the step elimination device 100 in the direction of the arrow S50. In this case, the moving speed is desirably a speed that does not affect the surroundings.

(Explanation of maintenance of step elimination machine 100)
FIG. 11 is a schematic explanatory diagram showing an example of maintenance of the step elimination machine 100. As shown in FIG.

As shown in FIG. 11, in the case of maintenance of the step elimination device 100, by releasing the connection with the link mechanism 300, the rotation surface 110 can be largely rotated in the direction of the arrow R20.
As a result, inspection, maintenance, repair, etc. of the drive unit 540 or the slide drive unit 550, the contact sensor 520, the distance sensor 530, the D screw shaft pusher 545, the rotating housing 546, the telescopic pusher 555, the roller 600, etc. can be carried out. can. In particular, it is possible to obtain an effect that maintenance or the like can be easily performed by rotating the rotating surface 110 by a large amount.

(D screw shaft with trapezoidal screw (TM) size TM18 or larger)
FIG. 12 is a schematic explanatory diagram showing an example of the relationship between the contact surface pressure P and the sliding speed V, and FIG. 13 is a schematic explanatory diagram showing the relationship between the self-restraint load (during driving) and the allowable rotation speed. is.

A method for calculating the allowable maximum PV value in the D screw shaft pusher 545 will be described below.
As shown in FIG. 12, in the case of a D screw shaft pusher 545 made of steel and brass using lubricating oil (one-dot chain line in the figure), the D screw shaft pusher 545 made of steel and resin without lubrication (dry) In the case of (three-dotted chain line in the figure), there is a problem that it is arranged on the dangerous side of the safety line.
The step elimination machine 100 according to the present embodiment is set to be on the left side of the safety line. These are confirmed by structural analysis simulation (EFA analysis) so as not to cause insufficient strength.

Also, as shown in FIG. 13, when examining the relationship between the required thrust and the allowable rotation speed when PV15 is limited, in the case of the self-load (during driving) and the allowable rotation speed, the trapezoidal screw (TM) size TM16 In this case, the size of the trapezoidal screw (TM) was set to TM18 or larger because it corresponded to the abnormal wear region. An example of a calculated value is when the static maximum load (horizontal holding force) is 8993 N, the allowable tensile force of the trapezoidal screw is 20106 N. In this case, the motor rotation speed is 3034 rpm, the reduction ratio is 5, and the torque is 0.32 Nm.
Since the D screw shaft is a trapezoidal screw (TM) of size TM18 or larger, a D screw shaft of size TM20 is used in the level difference elimination device 100 according to the present embodiment.

(Example of maintenance using TBM and CBM)
Next, another example of the control unit 500 and the recording unit 510 of the step elimination machine 100 according to the present embodiment will be described.
The control unit 500 described above may add a self-diagnostic function based on operation data of the device by AI. For example, in the step eliminating machine 100 according to the present embodiment, regarding the motor load, three units of motors each having three axes and several sets of several types of detection sensors are arranged.

Here, the operation history data on the time axis such as the equipment inside the transmission panel is accumulated each time, and based on the performance data that is learned and more closely examined from the TBM time-based maintenance, switch to AI-analyzed CBM condition-based maintenance. can be used to improve safety and reduce maintenance costs.
In particular, at stations with a large number of passengers, there is a demand for additional station service equipment capable of AI analysis in order to reduce service or reduce the workload of station staff due to stoppages due to failures.
Therefore, the control unit 500 of the step eliminating machine 100 itself requests inspection before failure, or requests lubricating oil supply, parts replacement, inspection, etc. by communication in advance, so unnecessary maintenance is unnecessary and night work is required. maintenance can be planned and carried out without stopping operations during passenger business hours.

Here, TBM is also called time-based maintenance, and if only general regular maintenance is performed, if an abnormality occurs before the timing of maintenance, it will lead to a sudden stoppage of the line, resulting in a large loss. do. Moreover, it is conceivable that not only productivity decline or cost increase, but also the reliability of society and users may be affected. Furthermore, in regular maintenance, even parts that do not need to be replaced may be replaced, which tends to increase part costs.
Also, CBM is an abbreviation for Condition Based Maintenance, which means "maintenance based on the condition". The purpose of this is to prevent failures by monitoring the condition of machinery and equipment and performing maintenance according to the condition. This CBM is also called "condition-based maintenance" or "condition-based maintenance".

As shown in FIGS. 14 to 16, the control unit 500 of the step elimination machine 100 according to the present embodiment includes a time axis and measurement data (sensor judgment results, number of errors, motor overload data, etc.), data collection, monitoring, and judgment are performed using the learning function of AI to perform abnormality sign judgment and perform maintenance and equipment parts replacement. .
That is, the control unit 500 of the step eliminating machine 100 according to the present embodiment is equipped with an AI analysis engine, and the operation data of the step eliminating machine 100, for example, the forward and backward movements of the parts to be driven; Motor shaft, heat exhaust fan, temperature sensor, etc., detection sensor related detection sensor, exhaust heat exhaust fan for electrical panel, air conditioner in panel, temperature sensor, error information, or other information, object to be measured Regarding the train, regarding the train, detection failure, distance measurement abnormality and error, motor overload, abnormal temperature rise inside the step elimination machine 100, other abnormalities in the attached electrical board or equipment, etc. are related on the time axis. Data on the operation history of parts etc. is accumulated in the hypochondrium 510 each time (every day), and CBM is performed for learning and AI failure analysis from TBM. Thereby, predictive maintenance by CBM can be realized.

As a result, maintenance labor costs and replacement parts costs can be reduced by eliminating outages due to sudden failures and performing regular maintenance during periods when the system is not in a failure mode. In addition, the bump elimination device 100 itself can request inspection by communication before failure, and preventive maintenance such as lubricating oil supply, parts replacement, detection sensor cleaning, and lens cleaning can be performed. In particular, it is desirable that the time period during which the level difference eliminating machine 100 requests inspection by itself is not during the operating hours of the passenger service, but by specifying the night time from the end of business to the start of business. As a result, replacement parts can be arranged or replacement workers can be arranged in advance, and maintenance can be performed at the optimum timing with the minimum part replacement, thereby realizing stable operation of the step eliminating machine 100 and contributing to reduction of maintenance costs. and can improve safety and stable operation.

(Another example of the control unit 500 and the recording unit 510)
The control unit 500 of the step-removing machine 100 according to the present embodiment may employ an AI analysis to determine the user of the step-removing machine and/or employ a face authentication/morphology authentication system.
For example, in station ticket gates, users of wheelchairs, strollers, etc. may be identified, and in particular, people who use the system frequently may perform face recognition together. In this case, these users can be guided to the elevator, and furthermore, can be automatically guided to the area where the step elimination machine 100 is arranged. Guidance can be provided by voice and display equipment (including LED displays, etc.) to guide the vehicle to the vehicle stop position in the area where the step elimination machine 100 is installed, which is a safe boarding position.
As a result, it is possible to reduce the workload of the station attendants and provide appropriate services to passengers. In particular, a large effect can be obtained at a station with a large number of passengers or a major station. As described above, in the control unit 500 of the step elimination machine 100 according to the present embodiment, it is possible to generate an authentication algorithm for comprehensive judgment, judge maintenance timing, and provide guidance service.

In the present invention, the platform 200 corresponds to the "platform", the step eliminating device 100 corresponds to the "step eliminating device", the link mechanism 300 corresponds to the "inverted V-shaped link mechanism", and the rotation surface 110 corresponds to The driving unit 540 corresponds to the “lifting mechanism”, the slide driving unit 550 corresponds to the “slide mechanism”, and the contact sensor 520 and/or the distance sensor 530 and/or the proximity switch correspond to “ The control unit 500 corresponds to the “control unit”, disconnection from the link mechanism 300 corresponds to the “maintenance mechanism”, and the D screw shaft pusher 545 and/or the telescopic The pusher 555 corresponds to "trapezoidal screw or ball screw".

Although one preferred embodiment of the invention is described above, the invention is not so limited. It is understood that various other embodiments can be made without departing from the spirit and scope of the invention. Furthermore, in the present embodiment, the actions and effects of the configuration of the present invention are described, but these actions and effects are examples and do not limit the present invention.

100: Level difference elimination machine 110: Rotating surface 120: Telescopic surface 200: Platform 300: Link mechanism 500: Control unit 510: Recording unit 520: Contact sensor 530: Distance sensor 540: Driving unit 545: D screw shaft pusher 550: Slide Drive unit 555: Telescopic pusher 560: Emergency return-to-origin device

Claims (6)

A level difference elimination machine that is embedded in the platform and eliminates the gap and level difference between the train entrance and exit ,
a top surface fixed to the platform height;
a rotating surface rotatably supported on the train entrance/exit side of the upper surface;
a telescopic surface slidably attached to the pivot surface;
a vertical lifting mechanism that vertically moves the rotation surface by means of an inverted V -shaped link mechanism;
a slide mechanism that slides the telescopic surface ;
a detection sensor comprising a plurality of sensors provided on the rotation surface or the expansion/contraction surface ;
A control unit that controls the vertical lifting mechanism, the sliding mechanism, and the detection sensor ,
The inverted V-shaped link mechanism is positioned at the same height as the fixed shaft fixed to the end on the train entrance/exit side, and the vertical lifting mechanism controls the distance from the fixed shaft. and a link shaft positioned at the vertex of an inverted V shape and supporting the rotation surface, wherein the fixed shaft, the movable shaft, and the link shaft are rotatable,
The control unit
A device for removing bumps, wherein the sliding mechanism is driven after starting to drive the vertical lifting mechanism according to information from at least one of the plurality of sensors of the detection sensor. 2. The step elimination machine according to claim 1, wherein the distance between said movable shaft and said link shaft is 1.5 times the distance between said fixed shaft and said link shaft. The height of the extensible surface is set so that it becomes lower than the height of the floor of the train entrance when the train arrives, and becomes higher than the height of the floor of the train entrance when a predetermined time elapses after the arrival of the train. 2. The step elimination machine according to claim 1, which controls an elevating mechanism . The vertical lifting mechanism is
further comprising a maintenance mechanism;
2. The step elimination machine according to claim 1, wherein said maintenance mechanism includes a maintenance rotation mechanism capable of rotating said rotation surface by nearly 90 degrees in the case of maintenance. 2. The step elimination machine according to claim 1, wherein a driving part of said vertical lifting mechanism and/or said sliding mechanism uses a trapezoidal screw or a ball screw. A platform in which a plurality of the step elimination machines according to claim 1 are embedded side by side.

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