JP4275984B2 - Platform simple movable fence - Google Patents

Platform simple movable fence Download PDF

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Publication number
JP4275984B2
JP4275984B2 JP2003119911A JP2003119911A JP4275984B2 JP 4275984 B2 JP4275984 B2 JP 4275984B2 JP 2003119911 A JP2003119911 A JP 2003119911A JP 2003119911 A JP2003119911 A JP 2003119911A JP 4275984 B2 JP4275984 B2 JP 4275984B2
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Japan
Prior art keywords
door
platform
provided
lifting
opening
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Expired - Fee Related
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JP2003119911A
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Japanese (ja)
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JP2004322823A (en
Inventor
忠晴 大橋
正人 横田
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川崎重工業株式会社
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Description

[0001]
[Industrial application fields]
The present invention relates to an opening for passengers (a vehicle entrance / exit) between fixed rails (fixed iron fences) for passenger protection installed along side edges in the longitudinal direction of the platform of a railway station. It is related to the movable fence for opening and closing the door, especially the movable fence of the raising and lowering system, and to make it possible to deal with a wide range of differences in the position of the train entrance door, while simplifying its drive mechanism It is possible to improve safety for passengers.
[0002]
[Prior art]
As a safety measure for passengers on the train platform, a fixed fence is installed at the edge of the platform in the longitudinal direction, an opening is provided between the fixed fences facing the position of the train entrance door, and this opening is slid. The door is opened and closed as appropriate.
By the way, it is inevitable that the error of the stop position of the train is limited to within 1m (the request for the train operator is generally set to within 1m of the stop position error), and the train stops on the same platform. There are various types of trains (for example, a three-door train, a four-door train, etc.), and therefore the position of the entrance / exit is not constant. In this way, due to the difference in the train stop position and the difference in the position of the entrance / exit due to the type of train, the width between the fixed fences must be widened to face the train entrance / exit. In some cases, an opening having a width of about 6 m is actually provided. In this way, when the width of the opening between the fixed fences increases, opening and closing the movable fence with a sliding door increases the width of the door pocket that houses it, and as a result, most of the side edge of the platform. Will be occupied by the opening and the door pocket, and the installation cost of the movable fence will be extremely high.
[0003]
Further, when the width of the slide door (movable fence) is widened, the opening / closing operation time becomes long because the opening / closing stroke is large, and it is difficult to perform the opening / closing operation within an appropriate time.
[0004]
In view of the above circumstances, there is one in which a wide opening between fixed fences is closed with a retractable belt and the door pocket is omitted (Japanese Patent Laid-Open No. 9-3843), and its structure is as shown in FIG. It is a thing.
This is done by setting up a fixed column separate from the iron fence on one side of the opening of the fixed iron fence provided at the edge in the longitudinal direction of the platform and laying a guide rail on the floor of the opening. When the moving strut moves along the guide rail, the belt is extended from the fixed strut on the opposite side by moving the moving strut, the opening is closed, and the moving strut moves in the opposite direction. Accordingly, the belt is wound on the fixed support column side to open the opening.
[0005]
However, in this case, since there is a guide rail on the floor of the platform, there is a risk that passengers may get stuck, and there is a problem that maintenance of this rail is troublesome, and the opening is closed with a belt. Therefore, it is not strong and rigid enough to support it when leaning against it, and therefore is not safe.
[0006]
On the other hand, there is one that does not require a door pocket and opens and closes a wide opening with a lifting fence (October 1, 2001, issued by Japan Railway Vehicle Machinery Technology Association, "ROLLING STOCK &MACHINERY", Vol. 9, Vol. 10 No.), its structure is as shown in FIG.
In this structure, a pipe-framed fence is raised and lowered from below the platform floor to the floor, and this framed lift fence embeds a pipe with a diameter of 50 to 60 mm at the side edge of the platform, The lifting column is inserted and moved up and down by a stroke of about 80 cm, and the handrail at the upper end of the lifting column is stored in a groove having a width of 23 cm and a length of 190 cm on the platform surface.
[0007]
However, in such a case, since the lifting column and the handrail of the lifting fence are stored under the platform floor, there is a limit to the height under the floor at the side edge of the platform. Is restricted, and the lifting height of the lifting fence is limited to about 80 cm.
For this reason, there exists a problem that the closing effect which closes the opening part of a fixed fence with a raising / lowering fence is not necessarily high.
[0008]
In addition, the floor under the edge of the platform is a place for workers to work on track repair work and other work for electrical wiring work. Since the pipe for storage protrudes greatly, there is also a problem that the availability of the space is impaired. Furthermore, in this prior art, since the elevating fence rises from the floor surface of the platform, there is a problem that it is not desirable for safety of passengers walking on the platform.
Furthermore, in the case of the lift type that rises from the floor to the floor, there are various problems as described above. Therefore, it is desirable that the system be lifted upward from the platform.
[0009]
However, in the case of the pull-up type, the lifting stroke needs to be a minimum of 1.2 m or more, so the lifting drive mechanism and the control mechanism must be complicated and expensive. Since the fence is held in a state where it is lifted above the passengers, there is a risk of free fall, etc., and a lift-type lifting fence has not yet been realized.
[0010]
[Patent Literature]
JP 9-3843 A [Non-patent Document]
"ROLLING STOCK &MACHINERY", Vol. 9, No. 10, issued October 1, 2001 [0011]
[Problems to be solved]
The present invention relates to a movable fence ascending / descending drive mechanism and a movable fence provided at an opening (an entrance to a train) between fixed fences installed at the longitudinal edge of a platform of a railway station. An object of the present invention is to devise the elevating drive mechanism and its control mechanism so that the control mechanism can be simplified and the risk of free fall can be completely eliminated.
[0012]
[Measures taken to solve the problem]
[Solution 1]
Means 1 for solving the above-mentioned problems of the present invention is based on the following (a) to (e) with respect to the movable fence of the platform in which the movable fence at the opening between the fixed fences is a lifting type lifting door. .
(B) A support is provided at both ends of the opening between the fixed fences, a hoisting device is provided at the upper end of the prop, and a linear motion guide is provided on the inner surface to support the elevating door so that it can be raised and lowered. Make sure that the lift door is lifted,
(B) The hoisting device is composed of a hoisting drum, a gear transmission using a worm gear, and an electric motor;
(C) The elevating door has sliders on the left and right ends thereof, and the slider is guided by the linear motion guide of the support column,
(D) One end of the wire rope wound around the winding drum is connected to the slider, and the other end is connected to the balance weight.
(E) The balance weight is in the support column and moves up and down in the support column, and is about 10 to 20% lighter than the lift door.
[0013]
[Action]
Lifting door pulling expression depending on linear guides provided on the inside of the post of the opening ends between the fixed fence, since guided in the lifting direction via the slider, it is possible to perform an extremely smooth lifting operation.
The hoisting drum is driven via a gear transmission by a worm gear by forward driving and reverse driving of the electric motor, and the hoisting door is driven by the hoisting drum via the wire rope while maintaining a balance state with the balance weight. Is done.
Further, in the fully open state, a gear transmission using a worm gear is interposed between the electric motor and the winding drum, and reverse driving of the winding drum is prevented by the worm gear, so that the lifting door does not naturally drop.
[0014]
Furthermore, during the descent operation of the elevator door from the weight of the elevator door and the balance weight are approximately balanced (although the upper Symbol balance weight is 10-20% lighter than the elevator door), drop load lifting door Even if it is reduced by the weight of the balance weight and naturally descends, in that case, the lifting door descends slowly in a state almost balanced with the balance weight.
As described above, since the safety mechanism works twice, the danger caused by the lifting door descending in an uncontrolled state is completely eliminated.
Since the balance weight is in the above-mentioned column and moves up and down in the column, there is no danger to passengers and it is safe.
[0015]
[Solution 2]
Means 2 for solving the above-mentioned problem of the present invention is based on the following (a) to (f) for the movable fence of the platform in which the movable fence at the opening between the fixed fences is a lifting type lifting door. .
(A) A support is provided at both ends of the opening between the fixed fences, a fixed pulley is provided at the upper end of the support, and a linear motion guide block is provided on the inner surface thereof to support the lift door so as to be raised and lowered.
(B) A hoisting device is provided on the platform on the fixed fence side of the column so that the lifting door is lifted above the column;
(C) The hoisting device is composed of a gear transmission using an hoisting drum and a worm gear and an electric motor;
(D) The lifting door is provided with lifting posts on both left and right ends.
The lower end of the lifting column is connected to one end of a wire rope wound up by the winding device, and the other end is connected to a balance weight. The balance weight is in the column and moves up and down in the column. , Being 10 to 20% lighter than the lift door,
(E) The wire rope is wound around the pulley above the fixed fence and the winding drum of the winding device,
(F) The lifting column is guided by the linear motion guide block provided on the inner side surface of the column.
[0016]
[Action]
A linear motion guide block and a pulley are provided on a column slightly higher than the height of the fixed fence. The linear motion guide block and the pulley are supported by the linear motion guide block so as to be movable up and down. By driving the winding device installed above, the wire rope with one end connected to the lifting column is wound up, the lifting door is lifted together with the lifting column, and the wire rope is rewound while lifting the balance weight connected to the other end of the wire rope. Since the opening is opened and closed by lowering the lifting column to the height of the column, the weight of the lifting door and the balance weight is almost balanced during the lowering operation of the lifting door (however, the balance weight Is about 10-20% lighter than the lift door ). Therefore, the falling load of the lifting door is reduced by the weight of the balance weight.
In the fully open state, a gear transmission by a worm gear is interposed between the electric motor and the winding drum, and the reverse driving of the winding drum is prevented by the worm gear, so the lifting door does not naturally drop. In the unlikely event of a natural descent, the elevator door is almost balanced with the balance weight, so it descends slowly.
In addition, when the lifting door descends to the column, that is, when the opening is closed, the lifting column is lowered, so that the column that raises and lowers the lifting door on the fixed fence does not block the view and can be used on the conductor or platform. The line of sight from the provided surveillance camera is not disturbed by the support.
[0017]
[Solution 3]
Solution 3 is based on the premise of Solution 1 or Solution 2 that a one-way clutch is interposed between the winding drum and the shaft.
[0018]
[Action]
In the state where the opening between the fixed fences is closed by the lifting door, if a power failure occurs, it is necessary to push up the lifting door to open the opening, but the hoisting drum is driven by an electric motor via the worm gear. Thus, the opening cannot be released by manually pushing up the lifting door.
However, by interposing a one-way clutch between the winding drum and its shaft, when the lifting door is pushed up manually, the winding drum is driven by the balance weight and the wire rope is wound up so that the lifting door is Be raised. And the raising / lowering door is reliably hold | maintained by the worm gear in the position pushed up manually.
[0019]
Embodiment
[Example 1]
Next, Embodiment 1 of the present invention will be described with reference to FIGS.
1 (a) and 1 (b) show a lift door 1 provided in an opening 4 between fixed rails 3 and 3 for passenger protection installed along the longitudinal edge of the platform of the present invention. FIG. 3 is a front view schematically showing a state in which the opening 4 is opened by being raised above the platform 2 and a state in which the opening 4 is closed by being lowered.
The elevating door 1 provided in the opening 4 has a truss structure composed of an upper chord member 5, a lower chord member 6, and a diagonal member in order to increase rigidity and reduce weight, and its beam height. Is approximately 40 cm in width and approximately 6 m in width. In particular, the lower chord material 6 is wrapped with a buffer rubber so that a passenger does not get damaged even if the passenger gets inadvertently hit the lower chord material 6 during ascending and descending.
The elevating door 1 is supported up and down by a column 8 having a height of 2.5 m fixed to the upper ends of the supporting members 7 at both ends of the opening 4 between the fixed fences 3 and 3 having a height of about 1.2 m. Has been.
[0020]
The support column 8 is fixed to the support member 7 using a stay 28 or the like (see FIG. 2B), and a cushioning material (stopper rubber) 22 for the lifting door 1 and the balance weight 13 on the upper surface of the fixed fence 3. Is fixed.
The elevating door 1 is moved up and down by a drive device provided at the upper end of the column 8, and the elevating drive is controlled by a control device 20 provided in the fixed fence 3.
The control device 20 is provided on the platform 2 and is remotely controlled collectively by a command signal from the central control device.
[0021]
Further, in order to ensure safety for passengers when lowering the lifting door 1, a detection sensor 9 is provided on the opening 4 side of the support member 7, and by this detection sensor 9, the vicinity of the lower portion of the lifting door 1. This is detected when there are passengers on the doorway and the descent of the lift door 1 is stopped.
[0022]
Next, the raising / lowering drive mechanism of the said raising / lowering door 1 is demonstrated.
As shown in FIGS. 2 to 4, this elevating drive mechanism includes a hoisting device 10, a slider 11, a wire rope 12, a balance weight 13, and the like.
The winding device 10 includes a winding drum 14 and an electric motor 15 provided with a worm gear 21 on a shaft 25, and the winding drum 14 is connected to a shaft 24 of the winding drum 14 via a one-way clutch 23. The one-way clutch 23 includes a cam (ratchet claw) 26 attached to a shaft 24 and a spring 27, and a driven gear 33 is fixed to the shaft 24, and the driven gear 33 is It meshes with the worm gear 21 via the intermediate gear 34.
[0023]
The wire rope 12 is wound around the winding drum 14 two or three times, one end of which is connected to the slider 11 fixed to both outer ends of the lifting door 1 and the other end is connected to the balance weight 13. is doing. The winding drum 14 is driven to rotate forward and reversely by the electric motor 15 through the worm gear 21 to wind up and rewind the one end of the wire rope 12. As a result, the elevating door 1 is driven up and down while maintaining a balanced state with the balance weight 13.
[0024]
Even if the elevating door 1 is raised and the opening 4 is fully opened, the worm gear 21 is interposed between the electric motor 15 and the hoisting drum 14, so that reverse driving by the hoisting drum 14 is prevented by the worm gear 21. Therefore, the elevating door 1 does not fall naturally.
[0025]
Further, since the balance weight 13 is only about 10 to 20% lighter than the lift door 1, the lift door 1 slowly descends in a state of being substantially balanced with the balance weight 13.
A support bracket 17 is fixed to the slider 11, and members 16 are fixed to both left and right ends of the elevating door 1. The member 16 and the support bracket 17 can be extended and contracted by a horizontally long slot and a bolt. Is bound to. Therefore, the support bracket 17 is pulled by the bending of the elevating door 1, and the slider 11 is not pulled laterally.
On the other hand, a linear motion guide (guide rail) 19 is fixed to a linear motion guide bracket 18 provided in the support column 8, and the slider 11 can be moved up and down and left and right on the linear motion guide (guide rail) 19. Guided.
Therefore, the left and right ends of the lifting door 1 are lifted up and down while being guided smoothly and stably by the left and right support columns 8.
[0026]
[Example 2]
In the second embodiment shown in FIGS. 5A and 5B, the support members 7 and 7 at the side end portions of the opening 4 between the fixed fences 3 and 3 in the first embodiment can be moved up and down freely. The support columns 29 and 29 to be supported are changed.
The support | pillar 29 provided in the side edge part of the opening part 4 between this fixed fences 3 and 3 is a little higher than the fixed fence 3 whose height is 1.2 m, and is about 1.6 m.
And the fixed pulleys 35 and 35 are provided in the upper end part of this support | pillar 29, and the height position of a fixed fence, and a pair of upper and lower linear guide blocks 30 are provided in the upper side part by the side of the opening part 4.
[0027]
The wire rope 12 is wound around the pulley 35 at the upper end of the support column, the winding drum 36a of the winding device 36, and the fixed pulley 35 at the height of the fixed fence, one end of which is connected to the balance weight 13 and the other end is It is connected to the lower end of the lifting column 32. The balance weight 13 is in the hollow portion of the support column 29 and moves up and down in the hollow portion.
A long slide rail 32 a fixed to the elevating support column 32 is fitted into a U-shaped linear motion guide block 30 fixed to the inner surface of the support column 29, and the linear motion guide block 30 causes the slide rail 32 a to move. The lifting column 32 is guided in the lifting direction via the.
The elevating support column 32 is attached to both end portions of the elevating door 1 by connecting the support bracket 37 and the members 16 provided at both end portions of the elevating door 1 so as to be extendable and contractable with horizontally long holes and bolts. ing.
[0028]
The elevating column 32 is driven up and down by a hoisting device 36 installed on the platform 2, and the hoisting drum 36a of the hoisting device 36 drives the wire rope 12 to one side to raise the elevating door 1. And the opening 4 is opened. At this time, the lower end portion of the lifting column 32 is held at the position of the upper portion of the column 29. That is, in the second embodiment, when the opening 4 is closed, the lifting column 32 integrated with the lifting door 1 is at the same height as the column 29, and when opened, the lifting column 32 is higher than the column 29. It is in the upper position.
[0029]
Further, the raising / lowering drive by the hoisting device 36 is controlled by a control device (not shown) provided in each, and the control device is controlled by a signal from a central control device (not shown) as in the first embodiment. Therefore, all the raising / lowering doors 1 provided in the platform 2 are collectively opened / closed.
In the second embodiment, as in the first embodiment, a detection sensor (not shown) is provided on the opening 4 side of the support column 29 in order to ensure safety for passengers when lowering the elevating door 1. Yes.
[0030]
The lifting door 1 of Example 2 has a beam structure in which an upper chord material 1a and a short lower chord material 1b of a hollow square material are connected by an oblique material 1c, and adjacent lower chord materials 1b and 1b are connected to each other by a lower end material 1e. .
Then, both ends of the lower end material 1e are connected to the lower chord material 1b by bolts 1d in the longitudinal direction thereof, so that the lower end material 1e can swing in the front-rear direction of the lifting door 1 with the bolt 1d as a support shaft. It is suspended by. The bolt 1d is inserted into a vertically elongated hole in a bracket projecting from the lower surface of the lower chord member 1b, so that the lower end member 1e can move in the vertical direction with respect to the lower chord member 1b. The lower end material 1e is formed by covering a round bar with an elastic tube. Therefore, even when the elevator door 1 is moved up and down, even if the passenger collides with the lower end material 1e, the lower end material 1e swings away with the bolt 1d as an axis and escapes and is buffered by the elastic tube. Therefore, the impact is small.
In addition, the structure of the raising / lowering door 1 of Example 2 is applicable also to the raising / lowering door 1 of Example 1. FIG.
[0031]
【The invention's effect】
According to the first aspect of the present invention, in order to guide the raising / lowering of the elevating door by the pillars on both ends of the opening between the fixed fences of the platform, and to drive the elevating door, the one end is the elevating door and the other end is the balance weight. Since the connected wire rope is wound and unwound by an electric motor, the structure is very simple and the equipment cost is low.
Furthermore, since the hoisting device is composed of a hoisting drum, a gear transmission using a worm gear, and an electric motor, even if the control of the hoisting door becomes impossible, the hoisting door will drop naturally. There is absolutely no safety for passengers.
[0032]
In the invention according to claim 2, since the support supporting the lifting door in the release position moves up and down together with the lifting door, the support for guiding the lifting door to the fully open position blocks the view when the lifting door is lowered to the closed position. There is no such thing that the line of sight from the surveillance camera on the conductor or platform is not disturbed.
[0033]
In the inventions according to claims 1 and 2, when the opening is closed by the lifting door, the lifting door is in the same position as the column, and when the opening is opened, the lifting door is fixed. Since it is located above the columns on both ends, there is an advantage that the aesthetic appearance of the platform is not impaired.
[0034]
Further, in the invention according to claim 3, since the one-way clutch is interposed on the shaft of the winding drum driven by the electric motor, when the lifting door is pushed up manually, the winding drum is driven by the balance weight accordingly. Since the lifting door is pulled up by winding the wire rope, the lifting door can be easily and lightly pushed up manually. And since the elevating door is securely held in the pushed-up position, even if there is a power failure or the like, there will be no trouble in getting on and off the passengers.
[Brief description of the drawings]
FIG. 1 (a) is a front view schematically showing a state where an elevating door is raised upward and an opening is opened in Example 1, and (b) is a lowering of the elevating door. It is a schematic front view of the state which closed the opening part.
2A is a front view of the lifting door lifting drive mechanism of the first embodiment, and FIG. 2B is a side view thereof.
3A is a plan view seen from the XX direction of FIG. 2A, and FIG. 3B is a YY sectional view.
4A is a perspective view schematically showing the winding drive mechanism of the first embodiment, and FIG. 4B is a schematic side view of a one-way clutch provided in the winding device.
FIG. 5A is a front view showing a state in which the elevating door is lifted upward from the opening in the second embodiment, and FIG. 5B is a state in which the elevating door is lowered into the opening. FIG.
FIG. 6 is an enlarged view of a main part of FIG. 5 (b).
FIG. 7 is a front view of a conventional example in which an opening between fixed fences for passenger protection installed along a side edge of the platform is opened and closed with a belt, and FIG. Is a front view of a state in which the opening is opened by winding it around one side of the opening, and (b) is a front view of the state in which the opening is closed by the belt.
FIG. 8 is a front view of a conventional example in which the opening between the fixed fences for protecting the passengers installed along the longitudinal edge of the platform is opened and closed by a lifting fence housed under the platform floor. Yes, (a) is a front view of the state where the lift fence is lowered below the floor and the opening is opened, and (b) is a front view of the state where the lift fence is raised on the floor and the opening is closed. is there.
[Explanation of symbols]
1: Lifting door 2: Platform 3: Fixed fence 4: Opening part 5: Upper chord member 6: Lower chord member 7: Support member 8: Strut 9: Detection sensor 10: Winding device 11: Slider 12: Wire rope 13: Balance weight 14 : Winding drum 15: electric motor 16: member 17: support bracket 18: linear motion guide bracket 19: linear motion guide 20: control device 21: worm gear 22: cushion material 23: one-way clutch 24, 25: shaft 26: cam 27 : Spring 28: Stay 29: Strut 30: Linear motion guide block 31: Support bracket 32: Lifting strut 33: Driven gear 34: Intermediate gear 35: Pulley 36: Winding device 36 a: Winding drum 37: Support bracket

Claims (3)

  1. In the platform's simple movable fence, the movable fence that opens and closes the opening between the fixed fences provided on the side edge of the platform of the railway station is a lifting type lifting door,
    Columns are provided at both ends of the opening between the fixed fences, a hoisting device is provided at the upper end of the column, and a linear guide is provided on the inner surface to support the hoisting door so that it can be raised and lowered. Is supposed to be raised,
    The hoisting device comprises a hoisting drum and a gear transmission using a worm gear and an electric motor,
    The elevating door is provided with sliders on both right and left ends, and the slider is guided by the linear guide of the support column,
    One end of the wire rope wound around the winding drum is connected to the slider, and the other end is connected to the balance weight.
    A simple movable fence for a platform, wherein the balance weight is in the support column and is lifted and lowered in the support column and is about 10 to 20% lighter than the lift door .
  2. In the movable fence of the platform where the movable fence that opens and closes the opening between the fixed fences provided on the side edge of the platform of the railway station is a lifting type lifting door,
    Supports are provided at both ends of the opening between the fixed fences, a fixed pulley is provided at the upper end of the support pillars, and a linear motion guide block is provided on the inner surface to support the lift door so that it can be raised and lowered.
    Provided hoisting device on the fixed fence side of the pillar platform being adapted to raise the lift door above the support,
    The hoisting device comprises a hoisting drum and a gear transmission using a worm gear and an electric motor,
    The lifting door is equipped with lifting posts on both left and right ends,
    One end of the wire rope wound up by the hoisting device is connected to the lower end of the lifting column, and the other end is connected to the balance weight,
    The balance weight is in the support column and moves up and down in the support column, and is about 10 to 20% lighter than the lift door,
    Wrap the wire rope around the fixed pulley at the top of the fixed fence,
    A simple movable fence for a platform, wherein the elevating column is guided by the linear motion guide block provided on an inner surface of the column.
  3. The simple movable fence for a platform according to claim 1 or 2, wherein a one-way clutch is interposed between said winding drum and its shaft.
JP2003119911A 2003-04-24 2003-04-24 Platform simple movable fence Expired - Fee Related JP4275984B2 (en)

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