JP4167132B2 - Gap adjustment device between vehicle and platform - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention adjusts a clearance between a vehicle and a platform to prevent a passenger from falling on or off a track at a railway vehicle platform, for example, at a railway station, or to facilitate getting on and off with a wheelchair or the like. The present invention relates to a gap adjusting device.
[0002]
[Prior art]
The conventional technique will be described with reference to FIG. FIG. 8 is a cross-sectional view of a gap adjusting device according to the prior art.
[0003]
When a train arrives at the railway station, if the track along the platform is a straight line, there is no large gap between each vehicle, but if the track is an arc, the center of each vehicle Alternatively, a large gap is formed between the front and rear entrances and the platform. Therefore, a gap adjusting device that adjusts a gap generated between the vehicle and the platform has been proposed.
[0004]
In FIG. 8, a first slope plate 11 is attached to a base frame 10 so as to be swingable by a hinge portion 12. A second slope plate 13 is slidably accommodated in the first slope plate 11. The first slope plate 11 swings around the hinge portion 12 via the link 15 by the tilting device 14 that moves back and forth. The second slope plate 13 protrudes or retracts from the first slope plate 11 by an advance / retreat device 16 attached to the first slope plate 11 (see, for example, Patent Document 1).
[0005]
Although not shown in FIG. 8, a shock absorber is provided between the second slope plate 13 and the advance / retreat device 16. Then, the first slope plate 11 is tilted to raise the tip, adjust the height direction, and project the second slope plate 13 to close the space between the vehicle and the platform.
[0006]
Further, if the vehicle swings and the second slope plate 13 is about to be pushed back, the shock absorber works so that the movement of the second slope plate 13 is not transmitted to the advance / retreat device 16.
[0007]
[Patent Document 1]
Japanese Patent Laid-Open No. 9-20235 (FIG. 1)
[0008]
[Problems to be solved by the invention]
In this way, the gap between the vehicle and the platform can be closed, and at the same time, the step between the vehicle and the platform can be connected with a gently inclined surface. However, in the conventional technique, the first slope plate 11 and the second slope plate 13 overlap and slide with each other, so that a step corresponding to the thickness of the first slope plate is formed on the connecting surface. This level difference may become an obstacle that cannot be ignored when getting on and off with a wheelchair or the like.
[0009]
In view of such circumstances, an object of the present invention is to provide a gap adjusting device capable of closing a gap between a platform and a vehicle and at the same time connecting a step between a vehicle step and a platform surface with a smooth inclination.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the present invention according to claim 1 is a clearance adjustment device having a machine frame that is installed on a platform and adjusts the clearance between the vehicle and the platform, and one end of the machine frame is rotatable. A first step plate installed in the machine frame that is supported and the other end swings, and one end rotatably supported on the other end of the first step plate and the other end swings. And a second step plate installed in the machine frame, and a third step plate slidably supported on the other end of the second step plate .
[0011]
Since the upper surface of the platform and the upper surface of the first step plate that swings and the upper surface of the second step plate that swings are rotatably supported, it can be configured to be connected by a gentle slope. The connected slopes do not necessarily have to be continuous, and may be separated by a gap that allows passage through a wheelchair or the like. Further, a slip stopper or the like may be provided on the upper surface of each step plate. According to the above configuration, since the step between the vehicle step and the platform surface can be connected with a smooth inclination, it is possible to eliminate the obstacle caused by the step when getting on and off with a wheelchair or the like. In addition, since the third step plate is slid out from the other end of the second step plate to the vehicle side, a fixed length composed of the first step plate and the second step plate is provided. From the step plate position, the third step plate can bring the step plate closer to the vehicle.
[0012]
In order to solve the above problem, according to a second aspect of the present invention, in the gap adjusting device according to the first aspect, at least one of the first step plate or the second step plate is moved up and down. A plate lifting / lowering means is provided.
[0013]
The first step plate and the second step plate are configured to move up and down in cooperation, and at least plate lifting means for moving up and down one of the first step plate or the second step plate is provided. Thus, a smooth inclination can be configured with a minimum plate lifting device.
[0014]
In order to solve the above problem, according to a third aspect of the present invention, in the gap adjusting device according to the second aspect, the plate elevating means is at least the first step plate or the second step. It is characterized by comprising a link rotatably joined to one of the plates, and link driving means for driving the link.
[0015]
According to the said structure, a board raising / lowering means can be comprised compactly, and it can accommodate in a machine frame, and can form a slope as needed with the presence or absence of a vehicle.
[0018]
In order to solve the above-mentioned problem, according to a fourth aspect of the present invention, in the gap adjusting device according to any one of the first to third aspects, a sliding drive for sliding the third step plate. Means are provided.
[0019]
According to the above configuration, by providing the sliding drive means for sliding the third step plate, it is possible to adjust the amount of movement to be slid according to the clearance between the vehicle and the platform.
[0020]
In order to solve the above problems, the present invention according to claim 5, in the gap adjustment device according to claim 4, wherein the sliding drive means you characterized in that an elastic body.
[0021]
According to the above configuration, by using an elastic body, such as rubber or a spring, as the sliding drive means, even if the vehicle and the tip of the third step plate come into contact, the third step plate escapes by the elastic body. Therefore, the vehicle side is not damaged, and the step plate and the driving device are not damaged.
[0022]
In order to solve the above problem, the present invention described in claim 6 is characterized in that, in the gap adjusting device according to claim 4 , the sliding drive means is a fluid cylinder.
[0023]
According to the above configuration, after inclining the second step plate, the third step plate is caused to protrude toward the vehicle by operating the air cylinder, thereby closely contacting the third step plate and the vehicle. Can do. Even if the vehicle swings when getting on and off, the movement can be absorbed by the cushioning action of the air cylinder.
[0024]
In order to solve the above problem, according to a seventh aspect of the present invention, in the gap adjusting device according to any one of the first to sixth aspects, at least the second step plate or the third step. A vehicle protection means for protecting the vehicle is provided on any one of the plates.
[0025]
In order to solve the above problem, according to an eighth aspect of the present invention, in the gap adjusting device according to the seventh aspect , the vehicle protection means is a roller.
[0026]
A roller is rotatably provided at the corner of the third step plate. The outer peripheral surface of the roller is configured to protrude slightly outward from the outer peripheral surface of the third step plate. According to the above configuration, the roller is provided at the corner of the step plate when the vehicle enters the place where the step plate protrudes or the vehicle starts with the step plate protruding. Therefore, even when the step plate is brought into close contact with the vehicle, the vehicle is not damaged or the gap adjusting device is not damaged.
[0027]
DETAILED DESCRIPTION OF THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a study example examined by the present inventors in connection with the present invention and an embodiment of the present invention will be described in detail with reference to the drawings. FIG. 1 is a side sectional view of a gap adjusting device according to an example studied by the present inventor, and FIGS. 1 (a), 1 (b), and 1 (c) are respectively in operation. FIG. FIG. 2 shows a top view of FIG. FIG. 2 is a partially cutaway top view. FIG. 3 shows a top view of the second step plate according to the first embodiment of the present invention. FIG. 3 shows a part of the upper surface cut away.
FIG. 4 is a front view of the second step plate according to the first embodiment of the present invention. FIG. 4 is shown with the side edge block plates omitted. FIG. 5 is a perspective view showing an improved structure of overlapping portions on the upper surfaces of the second step plate and the third step plate according to the first embodiment of the present invention. FIG. 6 is a top view of the gap adjusting device according to the second embodiment of the present invention. FIG. 7 is a front view of a gap adjusting device according to the second embodiment of the present invention. 1 to 7, the same reference numerals are given to the same components, and duplicate descriptions thereof are omitted.
[0028]
( Examination example examined by the inventor in connection with the present invention )
1 and 2, the machine frame 20 is installed in a recess provided on the upper surface of the platform P on the track side. A first step plate 21 is swingably attached to the machine frame 20 by a hinge 22 so that the track side moves up and down. A bearing portion 21 a is provided at the end of the first step plate 21 on the track side, and a second step plate 23 is swingably attached by the bearing portion 23 a and the pin 24.
[0029]
An elevating mechanism 30 is provided below the first step plate 21. A mounting base 31 is fixed to the upper surface of the recess. A guide member 32 such as a linear guide is provided on the mounting base 31, and a slide block 33 is slidably attached thereto. One end of a support arm 34 is fixed to the side surface of the slide block 33. One end of a link 36 is rotatably attached to the other end of the support arm 34 by a pin 35. The other end of the link 36 is rotatably attached to the bearing portion 23b of the second step plate 23 by a pin 37.
[0030]
A screw shaft 38 is rotatably supported on the mounting base 31, and is connected to a motor 40 via a coupling 39 at the shaft end. The screw shaft 38 is screwed into the slide block 33. Therefore, when the motor 40 is rotated, the slide block 33 slides on the mounting base 31.
[0031]
When the slide block 33 of the elevating mechanism 30 is advanced to the vehicle T side, the second step plate 23 is pushed by the link 36 and rotates around the pin 24 and becomes horizontal as shown in FIG. And the gap between the platform P. In this state, there are still steps on the upper surfaces of the vehicle step S and the second step plate 23, but when a wheelchair or the like is not used, it is possible to safely get on and off in this state.
[0032]
The slide block 33 is further moved forward when it is desired to eliminate the level difference for getting on and off in a wheelchair or the like. When the slide block 33 moves forward, the link 36 is further raised to lift the second step plate 23. When the second step plate 23 is aligned with the first step plate 21, the end surface of the second step plate 23 abuts on the bearing portion 21a of the first step plate 21 at the position marked with * and does not rotate any further. Accordingly, as shown in FIG. 1C, the second step plate 23 and the first step plate 21 are lifted by the link 36 to form an inclined surface, and the vehicle-side step and the platform surface are connected by a gentle slope. Since the 1st step board 21 and the 2nd step board 23 are connected by rotation, the level | step difference as gap adjustment apparatus itself does not arise.
[0033]
(First embodiment of the present invention)
The configuration of the first embodiment of the present invention is the same as the configuration of the first step plate, but the configuration of the second step plate is different from the example studied by the inventor in connection with the present invention. It is. Accordingly, the illustration and description will be made only for the second step plate.
[0034]
3 to 5, the second step plate 50 is formed in a box shape that is open on the track side, and the third step plate 51 is slidably accommodated therein. The second step plate is provided with a bearing portion 50a for pin joining to the first step plate 21 shown in FIGS. 1 and 2, and a bearing portion 50b for pin joining to the link 36 shown in FIGS. This is the same as in the case of the above study example .
[0035]
A guide plate 52a is fixed to the side surface of the second step plate, and a guide plate 52b is fixed to the center portion. On the other hand, a guide roller 53a is provided on the side surface of the third step plate 51, and a guide roller 53b is provided in the central portion so as to sandwich the guide plates 52a and 52b, respectively. Thus, the third step plate 51 slides in the second step plate 50.
[0036]
The closing plate 54 closes the end opening of the second step plate 50.
[0037]
The second step plate 50 and the third step plate 51 are connected by a damper 56 having a spring 55. The spring 55 is a compression spring and always acts to push the third step plate 51 to the track side.
[0038]
It is desirable that the step plate extends as close as possible to the vehicle. However, the stop position of the vehicle (gap with the platform) varies from vehicle to vehicle, and the vehicle that is stopped still swings due to the movement of the load caused by getting on and off.
[0039]
In the step plate shown in the examination example, when the step plate comes into contact with the vehicle, the length is fixed and there is no escape, so the vehicle and the gap adjusting device may be damaged. Therefore, the step plate can be installed only at a position where a gap can be secured between the vehicle and the vehicle.
[0040]
On the other hand, according to the clearance adjustment device of the first embodiment of the present invention, even if the vehicle and the tip of the third step plate 51 come into contact, the third step plate 51 escapes with a spring and a damper. Will not be damaged, nor will the step plate or drive device be damaged. Therefore, the step plate can be brought closer to the vehicle than the gap adjusting device of the above-described study example .
[0041]
In the first embodiment of the present invention, the second step plate 50 and the third step plate 51 slide between each other, and a step is generated between them. However, since the protruding amount of the third step plate 51 in the first embodiment of the present invention is very short, even if there is a step, the width of the formed groove is narrow and has little influence on the elevation.
[0042]
When this step cannot be ignored, a comb-shaped thin groove may be formed at the upper surface end of the second step plate 50 as shown in FIG. A slide plate 57 is attached to the upper surface of the third step plate 51. The slide plate 57 has grooves that fit into the comb-shaped grooves of the second step plate, and has the same thickness as the upper plate of the second step plate 50. As described above, since the two comb-shaped grooves are overlapped, no step is generated even if the third step 51 slides. Since the sliding stroke of the 3rd step board 51 is small, such a structure can be implemented easily.
[0043]
( Second embodiment of the present invention)
In the second embodiment of the present invention, the configuration of the second step plate is the same as that of the first embodiment of the present invention, and only the configuration of the third step plate and the pressurizing mechanism are different.
Accordingly, the illustration and description are performed only for the third step plate.
[0044]
6 and 7, the third step plate 60 is slidably accommodated in the second step plate 50 as in the first embodiment of the present invention. The second step plate 50 and the third step plate 60 are connected by an air cylinder 61. Air is supplied to the air cylinder 61 from an air source (not shown) through a pipe 62, and the third step plate 60 protrudes or retracts toward the track side.
[0045]
A roller 64 is rotatably supported by a shaft 63 at the corner of the third step plate 60. The outer peripheral surface of the roller 64 protrudes slightly outward from the outer peripheral surface of the third step plate 60.
[0046]
After inclining the second step plate 50, the third step plate 60 can be brought into close contact with the vehicle by operating the air cylinder 61 to protrude toward the vehicle. Even if the vehicle swings when getting on and off, the movement can be absorbed by the cushioning action of the air cylinder 61.
[0047]
The operations of rotating the second step plate 50 up and projecting the third step plate 60 are such that after the vehicle arrives, the conductor or station staff operates the lifting device with a push button switch or the like (not shown) and then closes the gap. Then, after boarding / exiting, in principle, the step board is retracted before the vehicle departs, and the vehicle is departed after the second step board is stored in the platform.
[0048]
However, in the unlikely event that a vehicle enters the place where the step plate protrudes due to a malfunction or the vehicle starts with the step plate protruding, the corner of the step plate By providing the roller 64, the structure is easy to slip between the vehicle, so that even if the step plate is brought into close contact with the vehicle, the vehicle and the gap adjusting device are not damaged and are safe.
[0049]
【The invention's effect】
As described above, according to the first aspect of the present invention, since the step between the vehicle step and the platform surface can be connected with a smooth inclination, the obstacle due to the step when getting on and off with a wheelchair or the like can be eliminated. it can. Further, the step plate can be brought closer to the vehicle by the third step plate than the fixed-length step plate position formed by the first step plate and the second step plate.
[0050]
Further, according to the present invention of claim 2, by providing a plate elevating means for elevating at least one of the first step plate or the second step plate, a smooth inclination can be achieved with a minimum plate elevating device. Can be configured.
[0051]
According to the present invention of claim 3, the plate elevating means can be configured compactly and accommodated in the machine frame, and a slope can be formed as necessary depending on the presence or absence of the vehicle.
[0053]
According to the present invention of claim 4 , it is possible to adjust the amount of movement to be slid according to the clearance between the vehicle and the platform.
[0054]
According to the present invention of claim 5 , even if the vehicle and the tip of the step plate come into contact with each other, the vehicle side is not damaged, and the step plate and the driving device are not damaged.
[0055]
According to the sixth aspect of the present invention, the step plate and the vehicle can be brought into close contact with each other by operating the fluid cylinder to project the step plate toward the vehicle.
[0056]
Further, according to the present invention of claim 7 or claim 8 , when the vehicle enters the place where the step plate protrudes or the vehicle starts with the step plate protruding. Even if the step plate is brought into close contact with the vehicle, the vehicle and the gap adjusting device are not damaged.
[Brief description of the drawings]
FIGS. 1A and 1B are side sectional views of a gap adjusting device of a study example examined by the present inventor according to the present invention, and FIGS.
FIG. 2 is a top view of FIG.
FIG. 3 is a top view of a second step plate according to the first embodiment of the present invention.
FIG. 4 is a front view of a second step plate according to the first embodiment of the present invention.
FIG. 5 is a perspective view showing an improved structure of overlapping portions on the upper surfaces of the second step plate and the third step plate according to the first embodiment of the present invention.
FIG. 6 is a top view of a gap adjusting device according to a second embodiment of the present invention.
FIG. 7 is a front view of a gap adjusting device according to a second embodiment of the present invention.
FIG. 8 is a cross-sectional view of a gap adjusting device according to a conventional technique.
[Explanation of symbols]
20 Machine frame 21 First step plate 23 Second step plate 30 Lift mechanism 33 Slide block 34 Support arm 36 Link 51 Third step plate 55 Spring 61 Air cylinder 64 Roller

Claims (8)

In a gap adjusting device having a machine frame that is installed on a platform and adjusts a gap between a vehicle and a platform, one end is rotatably supported by the machine frame and the other end is installed in the machine frame that swings. A first step plate, and a second step plate installed in the machine frame, one end of which is rotatably supported by the other end of the first step plate and the other end of which swings , A gap adjusting device comprising a third step plate slidably supported at the other end of the second step plate .   The gap adjusting device according to claim 1, further comprising a plate elevating unit that elevates and lowers at least one of the first step plate or the second step plate. The said plate raising / lowering means is provided with the link joined to at least one of the said 1st step board or the said 2nd step board, and the link drive means which drives the said link. Item 3. A gap adjusting device according to Item 2 . The gap adjusting device according to any one of claims 1 to 3, further comprising a sliding drive unit that slides the third step plate. The gap adjusting device according to claim 4 , wherein the sliding drive means is an elastic body. The gap adjusting device according to claim 4 , wherein the sliding drive means is a fluid cylinder. The gap adjusting device according to any one of claims 1 to 6 , further comprising vehicle protection means for protecting the vehicle on at least one of the second step plate and the third step plate. The gap adjusting device according to claim 7 , wherein the vehicle protection means is a roller.

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