JP2006008068A - Self-propelled type movable platform gate - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an inexpensive constitution capable of reducing the necessity of maintenance and preventing a fall of a door pocket body 10 in a self-propelled type movable platform gate having door bodies 12a and 12b stored in a door storage space 10r formed at the inside of the door pocket body 10 in relation to the door pocket body 10 traveling along a platform and opened/closed by sliding the door bodies 12a and 12b. <P>SOLUTION: Axles 71 and 72 are rotatably supported in a lower part of the door pocket body 10. Each of the axles 71 and 72 is provided with wheels 61 and 62. The wheels 61 and 62 are constituted to roll on an upper surface of a rail 60 buried in the platform. A pair of brackets 81 and 81 ... are suspended from the lower part of the door pocket body 10 to hold the axles 71 and 72, corresponding to each of the wheels 61 and 62. The brackets 81 are extended up to a lower side of the rail 60 and rotatably support a guide wheel 82 at the lower ends to roll on a lower surface of the rail 60. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a movable platform gate that self-propels in response to a change in the position of a train entrance.

  Patent Document 1 discloses a manually movable platform gate (opening / closing fence). In FIG. 1 of Patent Document 1, the door which slidably supports the door in the door pocket is supported so that one end is slidable on the slide rail via the slide bearing, and the other end is transferred to the platform floor via the door wheel. It is supported movably. According to this configuration, by moving the door pocket in a straight line on the platform, the passage for passengers crossing the open / close fence can be moved to the left and right. In addition, patent document 1 mentions also about the structure which supports a door pocket only by a doorcar.

Although patent document 1 is disclosing about the case where a door pocket is moved manually, it is also considered to set it as a self-propelled movable platform gate, for example by driving the said door pulley with a drive motor.
Japanese Unexamined Patent Publication No. 2000-108889 (paragraph numbers 0004, 0005, 0009, and 0011 for a support structure only for a door wheel)

  However, since the structure of the above-mentioned patent document 1 is a structure in which the door pocket is slid by the slide rail and the slide bearing, the passenger passes on the slide rail when the door pocket is moved. May be damaged. Further, if mud or dust adheres to the sliding surface of the slide rail, it may enter the slide bearing. Therefore, the life of the slide rail is shortened, or the slide rail needs to be frequently maintained.

  Patent Document 1 also describes the case where the door is supported only by the door, but in this configuration, when the wind pressure of the passing train acts on the door, or when a person leans against the door during the rush hour, the door falls. There is a risk that.

Means and effects for solving the problems

  The problems to be solved by the present invention are as described above. Next, means for solving the problems and the effects thereof will be described.

(First invention)
The self-propelled movable platform gate of the first invention is configured as follows. A door bag body movable along the platform, and a door body housed in a door storage space formed inside the door bag body, and is opened and closed by sliding the door body with respect to the door bag body. Do. Two axles are rotatably supported at the lower portion of the door pocket body, and two wheels are provided on each axle, and these wheels are configured to roll on the upper surface of a rail embedded in the platform. To do. A bracket is suspended from the lower portion of the door pocket body in pairs so as to correspond to each of the wheels, and an axle supporting the wheel is positioned between each pair of brackets. Each bracket extends to the lower side of the rail, and a guide wheel is rotatably supported at the lower end thereof, and the guide wheel rolls on the lower surface of the rail (first invention).

  According to this means, since the running direction of the door bag body can be guided without using a slide rail as described in Patent Document 1, an expensive slide rail and a slide bearing can be omitted, and the manufacturing cost can be reduced. Such maintenance can be made unnecessary. That is, it can be configured to be able to stably run for a long time. Also, even when the wind pressure of the passing train acts on the door bag body or when a passenger leans on the door bag body, the guide wheel comes into contact with the lower surface of the rail and resists the force that tries to overturn the door bag body. . As a result, the fall of the door bag body can be effectively prevented. In particular, since the brackets that support the guide wheels are provided in pairs so as to sandwich the axle, the rail is restrained up and down between the two guide wheels and the wheels, and a reliable fall prevention effect can be exhibited.

(Second invention)
In the first invention, the guide wheels are preferably arranged so as to be paired with each other in the thickness direction of the door pocket (second invention).

  With this configuration, the above-described effect of preventing the fall of the door pocket body is more satisfactorily exhibited.

(Third invention)
In the second invention, the distance between the guide wheel and the guide wheel that make a pair in the thickness direction of the door pocket is preferably shorter than the distance between the corresponding wheels (third invention). ).

  With this configuration, a compact platform gate can be provided while exhibiting the above-described fall prevention effect. Furthermore, since the guide wheel and the bracket are not easily exposed to the outside, a clean appearance can be achieved and the design can be improved. In addition, since the guide wheel fits in the space below the door pocket body, it is difficult to be exposed to mud and dust, and the life of the guide wheel can be extended.

(Fourth invention)
In the first to third inventions, it is preferable that four guide wheels are provided for each axle, for a total of eight (fourth invention).

  With this configuration, the doorcase body can be reliably prevented from falling with a relatively simple configuration.

(Fifth invention)
In the first to fourth inventions, the guide wheel is preferably configured as a cam follower (fifth invention).

  With this configuration, it is possible to further reduce the manufacturing cost by adopting a cam follower that is widely distributed and inexpensive as a guide wheel.

(Sixth invention)
In the first to fifth inventions, the rails are preferably arranged in pairs in the thickness direction of the door pocket body, and the bracket is preferably suspended from the door bag body between the rails. (Sixth invention).

  With this configuration, the guide wheel and the bracket can be stored in a compact space. In addition, since the guide wheel fits in the space below the door bag body, it is difficult to be exposed to mud and dust, and the life of the guide wheel can be extended. Moreover, the recessed part which needs to be formed in a platform as a space which lets a guide wheel or a bracket pass can be made compact, and construction cost can be reduced.

(Seventh invention)
In the sixth invention, it is preferable that a cover is fixed between the two rails, and a groove through which the bracket is inserted is formed between the cover and the rail (seventh invention).

  With this configuration, it is possible to prevent mud or dust from entering the lower side of the rail by the cover, and the life of the guide wheel can be extended.

(Eighth invention)
In the first to seventh inventions, one of the two axles is a drive shaft driven by a travel motor provided in the door pocket body, and the remaining one is a driven shaft. Is preferable (eighth invention).

  With this configuration, one traveling motor can be provided, and the configuration can be simplified.

  Next, embodiments of the invention will be described. FIG. 1 is a partial cross-sectional view showing a configuration of a self-propelled movable platform gate according to an embodiment of the present invention, as viewed from the track side, and FIG. 2 is a side view of the platform gate of FIG. It is.

〔overall structure〕
1 and 2 show a self-propelled movable platform gate according to the present embodiment, and the platform gate 1 has a door bag body 10 capable of self-propelling on the platform. The door bag 10 supports two flat slide bodies 11a and 11b and two flat door bodies 12a and 12b. The platform gate 1 is configured to be opened when the train arrives at the platform and closed at other times.

[Composition of door bag]
The door bag 10 will be described. As shown in FIG. 2, a pair of rails 60, 60 are embedded in the short-side end portion of the platform, and the door pocket body 10 is erected so as to be able to travel along the rails 60. As shown in FIG. 1, the door bag body 10 includes a driving wheel 61 and a driven wheel 62 that can travel on the rail 60, and a traveling motor 63 that drives the driving wheel 61. And it is driven by the travel motor 63 in response to the arrival of a railway vehicle having a different entrance / exit position such as a three-door car or four-door car at the platform, or in response to a deviation of the stop position of the train on the platform. The wheel 61 is driven so that the door bag body 10 is self-propelled and can move to a position immediately next to the entrance / exit of the railway vehicle.

  The door bag 10 is hollow and has a door storage space 10r. The door storage space 10r includes two slide bodies 11a and 11b and two door bodies 12a as shown in FIG. -It is configured so that it can be stored in a state where 12b is alternately stacked. Since the platform gate 1 of the present embodiment is thus a double sliding door type (double sliding type), the width of the door storage space 10r can be reduced compared to a configuration in which one sliding door is simply opened and closed, and the door pocket. The width of the body 10 (the width in the platform longitudinal direction) is made compact. Note that linear linear guide rails 31a and 31b are fixed to the lower part of the door storage space 10r.

  Openings that lead to the outside are formed at both ends in the width direction of the door bag body 10, and the door storage space 10 r communicates to the outside through the openings. Through this opening on one end side, the slide body 11a and the door body 12a are advanced to close the entrance / exit, and the slide body 11a and the door body 12a can be retracted into the door storage space 10r to open the entrance / exit. It is configured. Another set of the slide body 11b and the door body 12b are configured to slide through the opening on the other end side of the door bag body 10 and to close / open the entrance on the opposite side.

[Configuration of slide body]
The slide body 11a on one side will be described. The slide body 11a has a shape elongated in the lateral direction, and two slide bearing units 32 and 32 are fixed to the lower surface thereof. And this slide bearing unit 32 * 32 is supported so that it may straddle the linear guide rail 31a installed in the said door body 10 side. On the other hand, a linear guide rail 37a is fixed to the upper surface of the slide body 11a.

  Rolling elements such as rollers or steel balls are supported inside the slide bearing unit 32, and the linear guide rail 31a and the slide bearing unit 32 constitute a so-called linear motion slide mechanism. As a result, the slide body 11 a is supported so as to be slidable in the horizontal direction with respect to the door pocket body 10. In addition, the slide body 11b on the other side is also supported on the door pocket body 10 by the linear guide rail 31b and a slide bearing unit (not shown) in the same manner.

[Composition of door body]
The door body 12a on one side will be described. As shown in FIG. 2, the door body 12a is disposed closer to the home side than the slide body 11a in the door storage space 10r when the door is opened. As shown in FIGS. 1 and 2, two slide bearing units 38 and 38 are fixed to a surface of the door body 12 a on the slide body 11 a side via a bracket 39. The slide bearing unit 38 is supported to be linearly slidable so as to straddle the linear guide rail 37a installed on the slide body 11a side.

  The linear guide rail 37a and the slide bearing unit 38 constitute a linear motion slide mechanism. As a result, the door body 12a is supported so as to be slidable in the horizontal direction with respect to the slide body 11a. The door 12b on the other side is also supported by the linear guide rail 37b and the slide bearing units 38 and 38 so as to be slidable in the horizontal direction with respect to the slide 11b.

  A cover 40 is fixed to each of the door bodies 12a and 12b. The cover 40 covers the slide bodies 11a and 11b, the bracket 39, the slide bearing unit 38, etc. so that they cannot be seen from the outside, and is blindfolded. Yes.

[Configuration for opening and closing the door]
Next, a configuration for opening and closing the door by moving the slide body 11a and the door body 12a on one side will be described. That is, as shown in FIG. 1, the belt fixing members 42 and 43 are fixed to the door pocket body 10 inside the door storage space 10 r. One end and the other end of a flexible timing belt 45 are fixed to the belt fixing members 42 and 43, respectively.

  An idler pulley 51 and a drive pulley 52 are rotatably supported on the slide body 11a, and the drive pulley 52 is driven by a drive unit 36. The timing belt 45 is fixed to the door pocket 10 by belt fixing members 42 and 43 at both ends so that the intermediate portion is wound around the idler pulley 51 and the driving pulley 52. Further, the portion of the timing belt 45 between the idler pulley 51 and the drive pulley 52 is fixed to the door body 12 a via the belt fixing member 44.

  FIG. 1 shows a state in which the doors 12a and 12b are advanced and the gate is closed. From this state, power is supplied to the drive unit 36 via a power supply line (not shown) to drive the drive pulley 52. The slide body 11a and the door body 12a can be double-slid so that the door body 12a has twice the speed of the slide body 11a, and the gate can be opened. In order to close the gate, the drive pulley 52 may be reversely rotated. The other side slide body 11b and door body 12b are also provided with the same drive mechanism as described above, and can be opened / closed by double slide drive.

[Configuration for running the door bag]
Next, the structure for making the door pocket body 10 self-propelled is demonstrated. As shown in FIG. 1, a drive shaft 71 and a driven shaft 72 are rotatably supported at both ends of the platform longitudinal direction at the lower portion of the door pocket body 10. The drive shaft 71 and the driven shaft 72 have their axes directed in the short direction of the platform.

  On the other hand, as shown in FIGS. 1 and 2, a concave portion 90 having a predetermined width and depth is formed at an end portion in the short direction of the platform. As shown in FIG. 2, two rails 60, 60 are installed in the recess 90 in parallel with each other at a predetermined interval. The upper surface of each rail 60 is disposed so as to be substantially flush with the floor surface of the platform. Further, a guide groove 68 is recessed along the longitudinal direction of the rail 60 on the upper surface of each rail 60.

  The configuration of the drive shaft 71 will be described in detail. In FIG. 3, pivot brackets 65, 65 are suspended from the bottom plate 64 constituting the hollow door pocket body 10, and the drive shaft 71 is rotatably supported by the pivot bracket 65 via a bearing. At a position corresponding to the rails 60 and 60 embedded in the platform, two drive wheels 61 and 61 are fixed to the drive shaft 71 by key coupling. The flange portion of the drive wheel 61 is inserted into the guide groove 68 of the rail 60, whereby the traveling direction of the door pocket body 10 is guided.

  Although not shown in detail, also on the driven shaft 72, two driven wheels 62 and 62 are fixed by key coupling as in the case of the driving wheel, and the flange portion of the driven wheel 62 is a guide groove of the rail 60. It is put in.

  A travel motor 63 and a deceleration box 66 are fixed at appropriate positions of the door pocket body 10. As shown in FIG. 3, the drive shaft 71 extends to the track side, and the extended portion enters the deceleration box 66. The speed reduction box 66 is provided with a speed reduction mechanism using a bevel gear so that the rotation of the drive output shaft of the traveling motor 63 can be transmitted to the drive shaft 71 by decelerating and increasing torque. The travel motor 63 and the speed reduction box 66 are covered with a motor cover 55 provided on the door pocket body 10.

  Further, a plurality of brackets 81 are suspended from the bottom plate 64 of the door pocket body 10. As shown in FIG. 1, the brackets 81 are provided so as to make a pair, and the drive shaft 71 (driven shaft 72) is positioned between the pair of brackets 81. Further, as shown in FIG. 3, the brackets 81 are also arranged to make a pair with each other in the thickness direction of the door pocket body 10 (the short side direction of the platform). Four brackets 81 are provided for each of the axles 71 and 72 (two for each of the wheels 61 and 62), for a total of eight.

  Each of these brackets 81 passes through the space between the rails 60 and 60 and extends to the lower side of the rail 60 (inside the concave portion 90 installed on the platform), and at the lower end thereof as a guide wheel The cam follower 82 is disposed with its axis of rotation directed in the thickness direction of the door pocket body 10 (the platform short direction). The cam follower 82 is adjacent to the lower surface of the rail 60 and can roll while contacting the lower surface of the rail 60.

  A cover 83 is fixed to the bottom surface of the recess 90 formed in the platform. The cover 83 is elongated along the rail 60 and is disposed between the pair of rails 60 and 60. Between the cover 83 and the rails 60 and 60, through-grooves 84 and 84 through which the bracket 81 can be inserted are formed. The upper surface of the cover 83 is substantially equal to the upper surface of the rail 60 and the floor surface of the platform.

  The configuration on the driven shaft 72 side is substantially the same as the configuration on the drive shaft 71 side except that the traveling motor 63 and the speed reduction box 66 are not provided.

  In the present embodiment, as described above, the driving wheel 61 and the driven wheel 62 roll on the upper surface of the rail 60 and the cam follower 82 rolls on the lower surface of the rail 60. Yes. Therefore, since the running direction of the door pocket body can be guided without using a slide rail as described in Patent Document 1, it is possible to omit expensive slide rails and slide bearings, thereby reducing the manufacturing cost, and maintaining the slide rails and the like. It can be unnecessary. That is, it can be configured to be able to run more stably for a longer period of time than before.

  Even when the wind pressure (including the wind pressure of the passing train) acts on the door bag 10 or when a passenger leans on the door bag 10, the cam follower 82 contacts the lower surface of the rail 60, thereby Resist the force of trying to overturn 10. As a result, the doorcase 10 is prevented from falling. In particular, since the brackets 81, 81,... That support the cam followers 82 are provided in pairs so as to sandwich the axles 71, 72, the rail 60 is vertically moved between the two cam followers 82 and the wheels 61, 62. It can be reliably restrained, and it can exert a certain fall prevention effect. In addition, the effect of preventing the fall is further improved by arranging the cam followers 82 to be paired with each other in the thickness direction of the door pocket body 10 (short direction of the platform) as shown in FIG. The

  In the present embodiment, as shown in FIG. 3, the distance d1 between the cam follower 82 and the cam follower 82 paired in the thickness direction of the door pocket body 10 is the distance between the corresponding drive wheel 61 and the drive wheel 61 ( The distance between the driven wheel 62 and the driven wheel 62 is shorter than d2 (d1 <d2). Thereby, the compact platform gate 1 can be provided, realizing the difficulty of falling down of the door bag body 10. Furthermore, since the cam follower 82 and the bracket 81 are difficult to be exposed to the outside, a clean appearance can be achieved and the design can be improved. Moreover, since the cam follower 82 fits in the space below the door pocket body 10, it is difficult to be exposed to mud and dust, and the life of the cam follower 82 can be extended.

  Further, in this embodiment, eight cam followers 82 are provided, four for the drive shaft 71 and four for the driven shaft 72. By comprising in this way, reliable fall prevention of the door pocket body 10 can be aimed at by a comparatively simple structure. Furthermore, in this embodiment, since the inexpensive cam follower 82 is employed as a guide wheel that rolls on the lower surface of the rail 60, the manufacturing cost can be reduced.

  In the present embodiment, the rails 60 are arranged in a pair in the thickness direction of the door pocket body 10, and the bracket 81 hangs down from the bottom plate of the door pocket body 10 between the rails 60 and 60. Has been. Therefore, the cam follower 82 and the bracket 81 can be stored in a compact space. Moreover, since the cam follower 82 is stored in the space below the door pocket body 10 as described above, it is difficult to be exposed to mud and dust, and the life of the cam follower 82 can be extended. Further, the recess 90 as a space through which the cam follower 82 and the bracket 81 are passed can be made compact, and the construction cost can be reduced.

  Further, in the present embodiment, a cover 83 is fixed between the rails 60 and 60, and grooves 84 and 84 through which the bracket 81 is inserted are formed between the cover 83 and the rail 60. With this cover 83, mud and dust can be prevented from entering below the rail 60 (inside the recess 90 formed in the platform), and the life of the cam follower 82 can be extended.

  Although the preferred embodiments of the present invention have been described above, the above embodiments can be implemented with the following modifications, for example.

  (1) Although the cam follower 82 is employed as the guide wheel in the above embodiment, the present invention is not limited thereto, and for example, a simple roller may be supported on the lower end of the bracket.

  (2) Although the above embodiment is configured as a double slide type gate, it is needless to say that the present invention can also be applied to a door body of a simple sliding door type platform gate having no slide bodies 11a and 11b. is there. Moreover, the drive mechanism 20 is not limited to the structure which opens and closes a double slide using a timing belt and a pulley like the said embodiment, A various structure can be employ | adopted.

  (3) In the above embodiment, two sets of door bodies 12a and 12b and slide bodies 11a and 11b are stacked in the thickness direction in the door storage space 10r, and the door bodies 12a and 12b are advanced from the door bag body 10 to both sides. However, it is also possible to store only one set of the door body and the slide body so that the door body advances from the door bag body only to one side.

  (4) In the above embodiment, one axle is the drive shaft 71 and the other axle is the driven shaft 72. However, a so-called four-wheel drive may be configured by installing a traveling motor on the driven shaft side. . However, if only one axle 71 is driven as in the present embodiment, the number of travel motors 63 installed can be reduced, and the manufacturing cost can be reduced.

The partial sectional view which looked at the state where the door was closed showing the composition of the self-propelled movable platform gate concerning one embodiment of the present invention from the track side. The side view of a platform gate. The side surface sectional enlarged view which shows the structure of a drive wheel and a guide wheel in detail.

Explanation of symbols

1 Platform Gate 10 Door Body 12a / 12b Door Body 60/60 Rail 61 Drive Wheel (Wheel)
62 Drive wheel
63 Traveling motor 71 Drive shaft (axle)
72 Driven shaft (axle)
81 Bracket 82 Cam follower (guide wheel)
83 Cover 84/84 Groove

Claims (8)

A door bag body movable along the platform, and a door body housed in a door storage space formed inside the door bag body, and is opened and closed by sliding the door body with respect to the door bag body. In the self-propelled movable platform gate to perform,
Two axles are rotatably supported at the lower portion of the door pocket body, and two wheels are provided on each axle, and these wheels are configured to roll on the upper surface of a rail embedded in the platform. And
To correspond to each of the wheels, a bracket is suspended from the lower portion of the door pocket body in pairs, and an axle supporting the wheel is positioned between each pair of brackets,
Each bracket extends to the lower side of the rail, and a guide wheel is rotatably supported at the lower end thereof, and the guide wheel is configured to roll on the lower surface of the rail.
Self-propelled movable platform gate.   2. The self-propelled movable platform gate according to claim 1, wherein the guide wheels are arranged to make a pair with each other in a thickness direction of the door pocket body.   It is a self-propelled movable platform gate of Claim 2, Comprising: The distance between the said guide wheel and guide wheel which makes a pair in the thickness direction of a door pocket body becomes shorter than the distance between corresponding wheels. A self-propelled movable platform gate.   The self-propelled movable platform gate according to any one of claims 1 to 3, wherein four guide wheels are provided for each axle, for a total of eight. Traveling movable platform gate.   The self-propelled movable platform gate according to any one of claims 1 to 4, wherein the guide wheel is configured as a cam follower.   It is a self-propelled movable platform gate as described in any one of Claim 1- Claim 5, Comprising: The said rail is arrange | positioned so that it may become a pair in the thickness direction of a door pocket body, The said bracket is the said door pocket body. A self-propelled movable platform gate, characterized in that it passes between the two rails and hangs down.   The self-propelled movable platform gate according to claim 6, wherein a cover is fixed between both rails, and a groove for inserting the bracket is formed between the cover and the rail. Features a self-propelled movable platform gate.   The self-propelled movable platform gate according to any one of claims 1 to 7, wherein one of the two axles is a drive shaft that is driven by a travel motor provided in a door pocket body. A self-propelled movable platform gate characterized in that the remaining one is a driven shaft.

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