JP4365693B2 - Gap adjustment device between vehicle and home - Google Patents

Description

  The present invention relates to a clearance adjustment device between a vehicle and a platform for preventing a passenger from falling on a track or facilitating getting on and off with a wheelchair, for example, at a railway vehicle platform.

  In general, when a train arrives at the premises of a railway station, such as a railway station, when the track along the platform is a straight line, there is no large gap between each vehicle and the platform, but the track is an arc. When a vehicle is drawn, a large gap is generated between the platform and the platform at the center or front / rear entrance of each vehicle. Therefore, a gap adjusting device that adjusts a gap generated between the vehicle and the platform has been proposed, and is disclosed in, for example, Japanese Patent Application Laid-Open No. 2002-053035 (referred to as Patent Document 1).

  Patent Document 1 will be briefly described with reference to FIG. In FIG. 14, a concave storage portion 84 is formed on the upper surface of the end edge portion 83 of the platform 80, and a gap adjusting device 81 (the fall prevention device 20 in Patent Document 1) is fixed to the storage portion 84.

  The clearance adjusting device 81 will be described. A fall prevention member 85 is provided along the end edge 83 of the platform 80. The fall prevention member 85 is fixed to the plate 86 at both ends and the center. It is supported. Each of these plates 86 is assembled to a plate on which a guide rail 87 is formed, and can move forward and backward in the width direction of the platform 80 along the guide rail 87. The plate on which the guide rail 87 is formed is assembled to a guide mechanism 89 fixed to the storage portion 84 of the platform 80. A rack 91 is fixed in the width direction of the platform 80 on the side surface of the plate 86 attached to the center portion of the fall prevention member 85. A pinion 92 is engaged with the rack 91, and a driving device 93 is connected to the pinion 92. By driving the drive device 93 in the forward / reverse direction, the fall prevention member 85 moves forward and backward in the substantially horizontal direction along the guide rail 87 to adjust the gap. And the whole storage part of the platform 80 is covered with the ceiling board 95 from the top so that the gap adjusting device 81 cannot be seen from the outside.

  As described above, the gap between the vehicle and the end edge 83 of the platform 80 is closed, but Patent Document 1 has the following problem. That is, the position of the floor or step of the vehicle is usually higher than the upper surface of the platform (according to current regulations). Therefore, even if it moves horizontally and closes the gap, the step with the vehicle step is not eliminated. Further, since the ceiling plate 95 and the plate 86 overlap and slide with each other, a step corresponding to the plate thickness of the ceiling plate 95 (indicated by δ in the figure) occurs on the connecting surface. This becomes an obstacle when getting on and off with a wheelchair or the like. Further, the fall prevention member 85 has a high bending and torsional rigidity. To smoothly move the fall prevention member 85 forward and backward, the assembly accuracy of the entire gap adjusting device 81 and the installation of the platform 80 in the storage portion 84 are as follows. In order to maintain the accuracy, precise assembly work is required, which increases costs.

For example, Japanese Patent Application Laid-Open No. 2002-274363 (hereinafter referred to as Patent Document 2) is disclosed as a gap adjusting device that can further improve the installation workability and assemblability with respect to Patent Document 1, and this is shown in FIG. explain.

In FIG. 15, in order to adjust the gap between the platform 80 and the vehicle, a plurality of plates 97 are attached so as to be able to advance and retract substantially horizontally. Since the drive mechanism and guide mechanism for moving the plate 97 forward and backward are substantially the same as in Patent Document 1, description thereof is omitted.
The plates 97 that are adjacent to each other are flexibly engaged by means such as pins, so that the assembly and installation work do not require strictness, and the work efficiency is improved and the cost is reduced. However, even in Patent Document 2, the level difference from the step surface of the vehicle and the level difference due to the thickness (δ) of the ceiling plate 95 have not been eliminated, and it still becomes an obstacle when getting on and off with a wheelchair or the like.
JP 2002-053035 A JP 2002-274363 A Japanese Patent Laid-Open No. 9-20235

In view of the above circumstances, the present invention closes the gap between the platform and the vehicle, and at the same time, can connect the step between the vehicle step surface and the platform upper surface with a smooth inclination, and can be easily installed to shorten the construction period. An object of the present invention is to provide a low-cost vehicle and home clearance adjustment device.

In order to solve the above-mentioned problems, the present invention is a clearance adjustment device for adjusting a clearance between a vehicle and a platform, and one end of the clearance adjustment device is rotatably supported by a machine frame installed on the platform. And a step plate for adjusting the gap between the vehicle and the platform by swinging the other end in the vertical direction according to the floor position of the vehicle, and a drive mechanism for swinging the step plate is provided in the machine frame. A rotation shaft that is driven to rotate about a vertical axis, a link that connects the rotation shaft and the lower surface of the step plate, and that rotates the step plate up and down as the rotation shaft rotates. It consists of a mechanism .
Further, according to the present invention, the rotary shaft and the step plate are connected by the first and second connecting rods, and a universal joint is disposed at the connecting portion between the first connecting rod and the second connecting rod, The link mechanism is configured by disposing a universal joint at the joint between the second connecting rod and the step plate.
Furthermore, at least two sets of the rotary shaft and the link mechanism are provided along the longitudinal direction of the step plate, the drive device is connected to at least one of the rotary shafts, and the link mechanisms are connected by a connecting rod. It is in.
Further, the present invention provides an emergency device on the vehicle entry side of the installation position of the clearance adjustment device in the platform, and the emergency device is extended to the vehicle side, and the emergency beam is arranged in the horizontal direction. It comprises a shaft portion that is pivotably supported, and an emergency connecting rod that connects the first connecting rod and the emergency beam, and the step plate is moved downward in conjunction with the rotation of the emergency beam. It is to make it rotate.
Further, an emergency device is provided on the vehicle entry side of the installation position of the clearance adjustment device in the platform, and the emergency device is supported by an emergency beam projecting toward the vehicle and a horizontal shaft that rotatably supports the step plate. And a gear mechanism provided between the shaft portion of the emergency beam and the horizontal shaft, the rotation of the emergency beam is transmitted to the horizontal shaft through the gear mechanism, and the step plate is moved downward. It is to make it rotate.
Further, in the gap adjusting device for adjusting the gap between the vehicle and the platform installed on the platform, the machine frame installed on the platform also serves as a cover plate that covers the upper surface of the machine frame, and one end Is provided rotatably on the rear end of the machine frame, and a step plate is provided to adjust the gap between the vehicle and the platform by swinging the other end in the vertical direction according to the vehicle floor position. A drive mechanism that moves is connected to a rotary shaft that is rotationally driven around a vertical axis provided in the machine frame, and the rotary shaft is connected to the lower surface of the step plate, and as the rotary shaft rotates. The step plate is composed of a link mechanism that rotates in the vertical direction .

In the present invention, since the drive mechanism that rotates the step plate in accordance with the gap between the vehicle and the platform is provided, the gap between the platform and the vehicle is closed, and at the same time, the step between the vehicle step surface and the platform upper surface is smoothed. It is possible to provide a gap adjusting device between a vehicle and a home that can be connected with a simple inclination, can be easily installed, shortens a construction period, and is inexpensive.
Further, according to the present invention, since the emergency device is provided on the vehicle entry side at the installation position of the gap adjusting device on the platform, the contact between the step plate and the vehicle can be prevented.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments shown in the drawings are described in detail with reference to the drawings.

  As shown in FIG. 1 and FIG. 2, in the gap adjusting device 1, a short machine frame 2 is formed in advance with angle steel or the like, and a reinforcing member 4 and each component device are attached to the machine frame 2. The gap adjusting device 1 is fixed to the edge portion 83 of the platform 80 to a concave storage portion 3 provided on a step in the width direction of the platform so as to correspond to the door of the vehicle, A cover plate 6 is attached to the upper surface of the gap adjusting device 1 so as to be flush with the upper surface of the platform 80. On the bottom surfaces of both end portions in the longitudinal direction of the gap adjusting device 1, the rotation shafts 5 are attached by bearings 7 so as to be rotatable around a vertical axis (not shown). A drive motor 10 is connected to one rotary shaft 5 via a speed reducer 9.

  1 and 2 show a drive motor, the drive source may be a hydraulic motor, a pneumatic motor, or a rack and pinion driven by a cylinder. In any case, a driving device for rotating the rotating shaft 5 installed vertically by a necessary angle is provided. A first connecting rod 11 is fixed in a horizontal direction on the peripheral surface of each rotating shaft 5 via a base end, and a ball joint (a universal joint) 13 is connected to the tip of the first connecting rod 11. The one end of the second connecting rod 15 is swingably connected.

  The other end of the second connecting rod 15 is connected to a mounting member 17 a provided on the back side of the step plate 17 via a ball joint (universal joint) 19. Further, the step plate 17 is attached to the machine frame 2 of the gap adjusting device 1 by a pin (shaft portion) 20 so as to be rotatable in the vertical direction as shown by the arrow in the figure. The two first connecting rods 11 provided at both ends of the gap adjusting device 1 are connected to each other by a beam 21, and both ends of the beam 21 are perpendicular to each other by pins (shaft portions) 23. It is attached to the middle of the first connecting rod 11 so as to be rotatable around an axis. These two sets of first connecting rods 11 are connected to each other via a beam 21, and the left and right rotating shafts 5 are moved in conjunction with each other by a driving motor 10 provided on one rotating shaft 5 and the speed reducer 9. Yes.

The clearance adjusting device 1 is provided with an emergency device 25 on the side of the platform 80 where the vehicle enters (indicated by an arrow Q in FIG. 1). The emergency device 25 is configured as follows.
That is, the emergency device 25 is installed in a recess (not shown) provided on the edge portion 83 of the platform 80 on the side where the vehicle enters, adjacent to the concave storage portion 3. Is supported by a pin 27 through a bearing (not shown) so that the base end of the emergency beam 29 is rotatable around a vertical axis. The distal end of the emergency beam 29 extends horizontally toward the vehicle side, and a collision (contact) member 30 is rotatable at the distal end of the emergency beam 29 via an appropriate cushioning material. Installed. At an approximately middle position or in the middle of the emergency beam 29, one end of an emergency connecting rod 33 is attached to be rotatable about a vertical axis by a pin 31, and the other end of the emergency connecting rod 33 is adjacent. The first connecting rod 11 is rotatably attached by a pin 35.

In FIG. 1, the emergency beam 29 and the emergency connecting rod 33 are indicated by solid lines for easy understanding, but they are naturally covered by the cover plate 6 and the emergency cover plate. .

As shown in FIG. 3 to FIG. 4A and FIG. 4B, the storage portion 3 has a substantially short shape on the upper surface of the end edge portion 83 of the platform 80, and has a length (home length direction) and width (home width). Direction) and depth are formed in a concave shape on the step so as to be scraped to the minimum according to the shape of the device to be arranged.

The operation of the gap adjusting device 1 according to the present invention will be described with reference to FIGS.
Now, in order to close the gap between the platform 80 and the vehicle step, when the drive motor 10 is driven to rotate, the rotary shaft 5 rotates and the first connecting rod 11 rotates so as to protrude from the end edge 83 of the platform 80. . The other first connecting rod 11 connected by the beam 21 also rotates in the same direction by the same displacement amount. As the left and right first connecting rods 11 rotate in the horizontal direction, one end is engaged by the first connecting rod 11 and the ball joint 13, and the other end is connected to the step plate 17 by the ball joint 19. The second connecting rod 15 pushes the step plate 17 upward about the pin 20. That is, as the first connecting rod 11 rotates, the position of the ball joint 13 moves to the vehicle side, and the second connecting rod 15 connected to the ball joint 13 is pushed out to the vehicle side. Thus, the ball joint 19 connected to the mounting portion of the step plate 17 is rotated around the pin 20 by the tip of the second connecting rod 15, and the step plate 17 is pushed up so as to correspond to the step height of the vehicle. .

  At this time, by appropriately controlling the rotation angle of the rotary shaft 5 according to the height of the step surface at the entrance of the vehicle (not shown), the step plate 17 is adjusted in the vertical direction. It is possible to eliminate a step between the tip of 17 and the entrance / exit step of the vehicle. That is, passengers getting on and off the vehicle can smoothly move from the horizontal cover plate 6 to the platform 80 on the same plane as the cover plate 6 through the step plate 17 maintaining a slight inclination angle from the vehicle step. In addition, as a method of adjusting the vertical rotation angle of the step plate 17 to the height of the step surface at the entrance of the vehicle, for example, the height position of the step of the vehicle is detected by an optical sensor based on this detection. The drive motor 10 may be controlled so as to adjust the rotation angle of the rotary shaft 5.

  Next, the operation of the emergency device 25 will be described. In a normal case, even if the gap adjusting device 1 is operated and the step plate 17 protrudes to the maximum extent, the gap with the vehicle is ensured to be more than a specified amount. Never do. However, if for some reason the step plate 17 remains protruding when the vehicle enters, or if the clearance with the platform 80 is unusually small due to special circumstances of the vehicle, the emergency device 25 is useful. It becomes. When the gap adjusting device 1 is not used in the emergency device 25, the emergency beam 29 is stored in the storage unit 3. The rotating shaft 5 is driven to rotate, and the first connecting rod 11 rotates in the horizontal plane, whereby the emergency connecting rod 33 connected to the first connecting rod 11 by the pin 35 and the pin 31 is pushed and the emergency beam is pressed. 29 rotates around the pin 27 and protrudes toward the vehicle, and the emergency device 25 enters a standby state. At this time, the tip of the collision member 30 attached to the tip of the emergency beam 29 has substantially the same protrusion amount as the tip of the step plate 17. Then, when the vehicle enters (indicated by an arrow Q in FIG. 1) and contacts the collision member 30, the emergency beam 29 is pushed in the traveling direction of the vehicle, and the first connecting rod 11 is moved via the emergency connecting rod 33. Pushing back to the return side, the step plate 17 is returned into the storage portion 3 to prevent contact with the vehicle.

According to the gap adjusting device 1 between the vehicle and the platform according to the present invention, the upper surface of the end edge 83 of the platform 80 is fitted into the step-shaped storage unit 3 that is cut into a concave shape by a necessary depth. Since it is installed, the present apparatus can be installed regardless of whether or not there is an installation space below the platform 80.
Further, since the step plate 17 for closing the gap is an opening / closing method centering on the pin 20, the depth dimension (indicated by Y in FIG. 3) of the storage portion 3 at the end edge portion 83 of the platform 80 can be reduced. This can greatly reduce the construction period and cost of installation work.
Furthermore, since the step plate 17 can be opened and closed, and the height can be adjusted with a gradient, it is possible to eliminate steps from the step floor of the vehicle entrance / exit, so that passengers such as elderly people and wheelchairs can get on and off. Safety can be ensured. Further, the provision of the simple emergency device 25 can prevent contact with or collision with the vehicle at a low cost.

FIGS. 5 to 8 show another embodiment of the present invention. In the configuration of the gap adjusting device 38, the same parts as those described in the first embodiment are denoted by the same reference numerals. Is omitted.
5 and 6, machine frames 37a and 37b divided into two sets are arranged, and each machine frame 37a and 37b has a base plate 39 and a cover plate 40 fixed to a frame made of angle steel or the like. Yes. (However, the cover plate 40 is not shown in FIG. 5.) The drive motor 10 attached to the bottom plate 39 is connected to the upper end of the rotating shaft 5 of one machine frame 37 a via the speed reducer 9. . As described in the first embodiment, the first connecting rod 11 fixed to the rotary shaft 5 attached to the other machine casing 37b is in an emergency position between the emergency beam 29 of the emergency device 25. The connecting rod 33 is connected. Further, the upper surface of the storage portion 41 for storing the beam 21 for connecting the left and right first connecting rods 11 is covered with a cover plate so as to be flush with the upper surface of the platform 80 and the cover plate 40 of the machine frames 37a and 37b. (Not shown).

  As shown in FIGS. 7 to 8 (a) and 8 (b), the storage portion 41 is a device having a small and short shape with two sections on the upper surface of the end edge portion 83 of the platform 80, and the depth thereof. It is formed in a stepped concave shape so as to be scraped to the minimum according to the shape.

According to the gap adjusting device 38 according to the present invention, the small machine casings 37a and 37b are divided into left and right parts, so that the intermediate platform 80 (see arrow X in FIG. 7) is arranged as shown in FIG. No need to cut). Further, by installing the speed reducer 9 and the drive motor 10 on the upper surface of the rotating shaft 5, as shown in FIG. 8B, the depth of the storage portion 41 (indicated by Z in the figure) can be significantly reduced. I can do it.
Therefore, the volume of the storage part 41 can be made very small, and the construction period and cost can be greatly reduced.

A gap adjusting device 51 according to the present invention will be described with reference to FIGS. 9 and 10A and 10B.
9 and 10 (a) and 10 (b), a machine frame 53 made of angle steel or the like is fixed to a storage portion 63a provided on an edge 83 of the platform 80. A driving device 56 is fixed on the bottom plate 55 of the machine frame 53, and an output shaft of the driving device 56 is connected to a sprocket 59 a that is rotatably supported by a bearing 57. On the vehicle side of the machine frame 53, an opening / closing shaft 61 is disposed in parallel with or along the edge portion 83 of the platform 80, and one end portion of the opening / closing shaft 61 is fixed to the machine frame 53. The bearing 62 is rotatably supported. The other appropriate position of the opening / closing shaft 61 is supported by a bearing 64 provided on the upper surface of the end edge portion 83 of the platform 80 and fixed to the storage portion 63b. A step plate 71 is fixed to the open / close shaft 61 at the positions of the bearing 62 and the bearing 64.

  Further, a sprocket 59b is fixed to the opening / closing shaft 61 so as to face the sprocket 59a on the drive device 56 side, and a chain 73 is stretched between the sprockets 59a and 59b. 9 and 10A show the drive device 56, the sprocket 59, and the chain 73. The drive source may be a belt or a rack and pinion driven by a cylinder. Also good. In any case, a drive device for rotating the horizontally disposed opening / closing shaft 61 by a necessary angle is disposed.

  An emergency device 65 is provided at the other end of the opening / closing shaft 61. The configuration of the emergency device 65 is such that an emergency beam 66 is fixed in the same direction as the opening / closing direction of the step plate 71 at the shaft end of the opening / closing shaft 61 on the vehicle entry side (indicated by the arrow Q in FIG. 9). The base of the emergency beam 66 (the engaging portion with the opening / closing shaft 61) is supported by a bearing (not shown) and is linked to the opening / closing shaft 61 via a bevel gear mechanism 67.

As shown in FIG. 11 to FIG. 12A and FIG. A stepped portion or a concave shape is formed so as to be scraped to the minimum, and a storage portion 63c is provided over the entire width to store the step plate 71.
In order to close the gap between the platform 80 and the vehicle, when the driving device 56 rotates by a predetermined amount, the opening / closing shaft 61 rotates, and the step plate 71 and the emergency beam 66 project to the vehicle side and this state is set by the brake device of the driving device 56. Hold. At this time, it is possible to easily change the opening / closing angle of the step plate 71 so as to eliminate the step difference from the step upper surface of the entrance / exit of the vehicle, as in the above embodiment. Further, by driving the drive device 56 in the reverse direction, the step plate 71 and the emergency device 65 are housed in the housing portion 63c.

Next, the operation of the emergency device 65 provided on the vehicle entrance side (indicated by the arrow Q in FIG. 9) will be described.
When the vehicle that has entered the vehicle contacts the collision member 69 of the emergency device 65, the vehicle is bent in the direction of the arrow, and the opening / closing shaft 61 is rotated in the direction of closing the step plate 71 via the bevel gear mechanism 67. The emergency device 65 is retracted into the storage portion 63c in the platform 80 to prevent a collision with the vehicle.
The gap adjusting device 51 according to the present invention has a simple structure, and operates reliably at a low cost. In addition, since the volumes of the storage parts 63a, 63b, and 63c are small, the installation work can be performed at a low cost in a short time.

FIG. 13 is a modification of the embodiment of the gap adjusting device 1 shown in FIG. 1 and FIG. 2, and the same portions are denoted by the same reference numerals and description of the same portions is omitted. In this case, the step plate 17A is a large step plate that doubles as the cover plate 6 that closes the upper surface of the machine frame 2 in FIG. 2, and the rear end of the step plate 17A can be swung via the pin 20A. The machine frame 2 is hinged to the rear end wall 2a.
The other end of the second connecting rod 15 is connected to the back side of the front side of the step plate 17A via a ball joint (universal joint) 19.
According to this modification, the step plate 17A pivots up and down around the pin 20A, and the tip of the step plate 17A swings according to the floor of the vehicle, that is, the step height, and between the vehicle and the platform. The gap is adjusted.
Therefore, since the vehicle and the platform 80 are connected with a gentle inclination, it is possible to easily get on and off with a wheelchair or the like.

  The present invention is not limited to the above-described embodiment. For example, in the above-described embodiment, the steps for one door of the vehicle have been described. However, the present invention can be applied to a plurality of doors. Needless to say, you can. At that time, several kinds of different gap adjusting devices 1, 38, 51 described in the above embodiment may be used in combination. In addition, it goes without saying that the present invention can be implemented with appropriate modifications within a range not changing the gist of the present invention.

It is a conceptual diagram which shows embodiment of the clearance gap adjustment apparatus which concerns on this invention. It is the sectional view on the AA line of FIG. It is a top view which shows the accommodating part shape provided on a platform edge part in order to install the clearance gap adjustment apparatus which concerns on this invention. (A) is the BB sectional drawing of FIG. 3, (b) is CC sectional view taken on the line of FIG. It is a conceptual diagram which shows the clearance gap adjustment apparatus which concerns on this invention. It is the DD sectional view taken on the line of FIG. It is a top view which shows the accommodating part shape provided on a platform edge part in order to install the clearance gap adjustment apparatus which concerns on this invention. (A) is the EE sectional view taken on the line of FIG. 7, (b) is the FF sectional view taken on the line of FIG. It is a conceptual diagram which shows the clearance gap adjustment apparatus which concerns on this invention. (A) is the GG sectional view taken on the line of FIG. 9, (b) is the HH sectional view taken on the line of FIG. It is a top view which shows the accommodating part shape provided on a platform edge part in order to install the clearance gap adjustment apparatus which concerns on this invention. (A) is the II sectional view taken on the line of FIG. 11, (b) is the JJ sectional view taken on the line of FIG. It is a conceptual diagram which shows the modification of the clearance gap adjustment apparatus which concerns on this invention. It is a disassembled perspective view which shows the conventional clearance gap adjustment apparatus. It is a perspective view which shows the conventional clearance gap adjustment apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,38,81 Gap adjustment apparatus 2 Machine frame 3,41,84 Storage part 4 Reinforcement member 5 Rotating shaft 6 Cover plate 7 Bearing 9 Reduction gear 10 Drive motor 11 First connecting rod 13, 19 Ball joint 15 Second connecting rod 17, 71 Step plate 20, 23, 27, 31, 35 Pin 25, 65 Emergency device 29, 66 Emergency beam 30, 69 Collision member 33 Emergency connecting rod 80 Platform 83 End edge

Claims (6)

A clearance adjustment device installed on a platform for adjusting a clearance between a vehicle and a platform, one end of which is rotatably supported by a machine frame installed on the platform, and the other end depending on a vehicle floor position. A step plate that swings up and down to adjust the gap between the vehicle and the platform is provided, and a drive mechanism that swings this step plate is rotated around a vertical axis provided on the machine frame. And a link mechanism that connects the rotating shaft and the lower surface of the step plate and rotates the step plate in the vertical direction as the rotating shaft rotates. Adjustment device. The rotating shaft and the step plate are connected by first and second connecting rods, a universal joint is disposed at a joint portion of the first connecting rod and the second connecting rod, and the second connecting rod The gap adjusting device according to claim 1 , wherein the link mechanism is configured by arranging a universal joint at a coupling portion of the step plate. At least two sets of the rotating shaft and the link mechanism are provided along the longitudinal direction of the step plate, the drive device is connected to at least one of the rotating shafts, and the link mechanisms are connected by a connecting rod. The gap adjusting device according to claim 1 or 2 . An emergency device is provided on the vehicle entry side of the installation position of the clearance adjustment device on the platform, and the emergency device is extended to the vehicle side, and the emergency beam is supported so as to be rotatable in the horizontal direction. It comprises a shaft portion, an emergency connecting rod in which the first connecting rod and the emergency beam are connected, and the step plate is operated to rotate downward in conjunction with the rotation of the emergency beam. The gap adjusting device according to claim 2 or 3 , characterized in that An emergency device is provided on the vehicle entrance side of the installation position of the clearance adjustment device on the platform, the emergency device is extended to the vehicle side, a horizontal shaft that rotatably supports the step plate, A gear mechanism provided between the shaft portion of the emergency beam and the horizontal shaft. The rotation of the emergency beam is transmitted to the horizontal shaft through the gear mechanism, and the step plate is rotated downward. gap adjusting device according to claim 2 or 3, characterized in that to the dynamic operation. In the gap adjusting device installed on the platform for adjusting the gap between the vehicle and the platform, the machine frame installed on the platform also serves as a cover plate that covers the upper surface of the machine frame, and one end of the machine frame Provided with a step plate that is rotatably supported at the rear end and swings the other end in the vertical direction according to the vehicle floor position to adjust the gap between the vehicle and the platform, and swings this step plate The mechanism is configured to connect a rotary shaft that is rotationally driven around a vertical axis provided in the machine frame, the rotary shaft and a lower surface of the step plate, and the step plate according to the rotation of the rotary shaft. A gap adjusting device comprising a link mechanism that pivots in a vertical direction .

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