JP4219767B2 - Double sliding platform gate - Google Patents

Description

  The present invention relates to a platform gate technique in which a door is opened when a train arrives at the platform and closed at other times. More specifically, the present invention relates to a double sliding door type (double slide type) platform gate configuration.

For example, a conventional double sliding door type platform gate is disclosed in Patent Document 1. This is a system in which the main door (2) is driven by a linear motor (22) installed in the door pocket (1), and the slave door (3) is linked to the main door (2) by a ball screw mechanism (12). is there.
JP 2000-108890 A (FIG. 1)

  However, the configuration of Patent Document 1 requires two drive mechanisms, a linear motor (22) and a ball screw mechanism (12), and the configuration becomes complicated. As a result, the space in the door pocket (1) is widened. I can't take it.

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)
That is, in order to achieve the above-mentioned object, a double slide type platform gate of the present invention includes a door bag body provided on the platform and forming a door storage space therein, and a slide body supported slidably on the door bag body. And a door that is slidably supported by the slide body, and a drive mechanism that drives the door body at the same time so that the speed of the door body is twice the speed of the slide body. The length in the vertical direction of the body was configured to be 2/3 or less of the length in the vertical direction of the door body (first invention).

  With this configuration, a space capable of accommodating other devices can be formed above or below the slide body, so that an overall compact platform gate can be provided. Further, since the slide body can be made small, the weight can be reduced and the manufacturing cost can be reduced.

(Second Invention / Third Invention)
In the double slide platform gate according to the first aspect of the present invention, the vertical length of the slide body is preferably ½ or less of the vertical length of the door body (second invention). In particular, the vertical length of the slide body is preferably 1/3 or less of the vertical length of the door body (third invention).

  With this configuration, a more compact platform gate can be provided. In addition, since the slide body can be made smaller, the effect of reducing the weight and the manufacturing cost can be increased.

(Fourth invention)
In the double slide type platform gate of the first to third inventions, the length of the slide body in the vertical direction is preferably shorter than the width of the slide body in the door opening / closing direction (fourth invention). .

  With this configuration, a space capable of storing other devices can be formed above or below the slide body, and the overall compactness of the platform gate is improved. Further, since the slide body can be made small, the weight can be reduced and the manufacturing cost can be reduced.

(Fifth invention)
In the double slide platform gate of the first to fourth inventions, the drive mechanism preferably includes a belt and a pulley (fifth invention).

  Thereby, the drive mechanism which drives a door body and a slide body simultaneously can be made into a simple structure. Moreover, the door body and the slide body can be smoothly opened and closed.

(Sixth invention)
In the double slide type platform gate of the fifth invention, it is preferable that a drive motor for driving the belt of the drive mechanism is provided in the door pocket body (sixth invention).

  With this configuration, compared to a so-called self-propelled configuration in which a heavy drive motor is provided on the slide body or the door body, the slide body or the door body can be reduced in weight, and energy consumption when the door is opened or closed can be reduced.

(Seventh invention)
In the double slide type platform gate of the first to sixth inventions, the slide body is preferably arranged on the upper end side or the lower end side of the door body (seventh invention).

  With this configuration, a space in which other devices can be arranged can be secured widely above or below the slide body, and the compactness of the platform gate is improved.

(Eighth invention)
In the double slide type platform gate of the first to seventh inventions, it is preferable that a transparent body or a translucent body is installed on the door body (eighth invention).

  With this configuration, when the door is closed, a wide field of view can be secured by the space above or below the transparent body and the slide body. Alternatively, the daylighting property can be improved by the space above or below the translucent body and the slide body.

(9th invention)
In the double slide type platform gate of the eighth invention, it is preferable that a transparent body or a semi-transparent body is installed in both the door bag body and the door body (9th invention).

  With this configuration, it is possible to ensure a wide field of view or to ensure good daylighting properties when the door is closed or opened.

(Tenth invention)
In the double slide platform gate of the eighth or ninth invention, it is preferable that the transparent body or translucent body is installed at a position that does not overlap with the slide body in the vertical direction (10th invention).

  With this configuration, the slide body does not block the field of view of the transparent body, and since the slide body is formed to be short in the vertical direction, a large installation area of the transparent body can be secured, so that a satisfactory see-through can be achieved. Similarly, in the case of a translucent body, it is possible to ensure good daylighting.

  Next, embodiments of the invention will be described. FIG. 1 is a partial cross-sectional view showing a configuration of a double slide type platform gate according to an embodiment of the present invention when the door is closed as viewed from the track side, and FIG. 2 is a direction in which the platform gate of FIG. FIG. 3 is an explanatory diagram showing the relationship between the speed of the door body and the speed of the slide body. FIG. 4 is a partial cross-sectional view showing a modification in which a transparent window is installed in the door bag body and the door body.

〔overall structure〕
1 and 2 show a double sliding door type platform gate according to the present embodiment. The platform gate 1 includes a door pocket body 10 and a flat slide body 11 slidably supported by the door pocket body 10. And a flat door body 12 that is slidably supported by the slide body 11.

[Composition of door bag]
The door bag 10 will be described. The door bag body 10 is erected at a position in the short side direction of the platform and immediately next to the entrance / exit of the railway vehicle. The door bag body 10 is formed in a hollow shape and has a door storage space 10a therein. As shown in FIG. 2, the slide body 11 and the door body 12 are stored in the door storage space 10a. It is configured to be able to. 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 10a can be reduced compared to a configuration in which the sliding door is simply opened and closed, and the door pocket body 10 is It is compact.

  An opening leading to the outside is formed on one end side in the width direction of the door bag body 10, and the door storage space 10a communicates with the outside through the opening. Through this opening, the slide body 11 and the door body 12 are advanced to close the entrance / exit, and the slide body 11 and the door body 12 are retracted into the door storage space 10a to open the entrance / exit. ing. A linear linear guide rail 31 is fixed to the lower part of the door storage space 10a.

  A drive pulley 54 is supported on the inner wall of the door storage space 10a, and a drive unit 36 is fixedly connected to the drive pulley 54. A drive output shaft of the drive unit 36 is connected to the drive pulley 54. Although a specific configuration of the drive unit 36 is not described in detail, the drive unit 36 includes an electric motor as a drive motor and a reduction mechanism that decelerates the output rotation of the motor shaft of the electric motor. The electric motor is connected to a control panel installed on the door pocket body 10 side via a power supply cable (not shown).

[Configuration of slide body]
The slide body 11 will be described. The slide body 11 is configured to be elongated in the lateral direction so that the vertical length h1 thereof is about ¼ of the vertical length h2 of the door body 12. Two slide bearing units 32 and 32 are fixed to the lower surface of the slide body 11. And this slide bearing unit 32 * 32 is supported so that it may straddle the linear guide rail 31 installed in the said door body 10 side. On the other hand, a linear guide rail 37 is fixed to the upper surface of the slide body 11.

  Rolling elements such as rollers or steel balls are supported inside the slide bearing unit 32, and the linear guide rail 31 and the slide bearing unit 32 constitute a so-called linear motion slide mechanism. As a result, the slide body 11 is supported so as to be slidable in the horizontal direction with respect to the door pocket body 10.

  Three pulleys (rotating bodies), that is, a first idler pulley 51, a second idler pulley 52, and a driven pulley 53 are supported on the surface of the slide body 11 facing the door body 12. Specifically, two toothed idler pulleys 51 and 52 are supported on the end of the slide body 11 on the door retracting direction side, and a toothed driven pulley 53 is supported on the end of the door advancement side. The These three pulleys 51 to 53 are supported on the slide body 11 so as to be freely rotatable.

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

[Configuration for opening and closing the door]
Next, a configuration for moving the slide body 11 and the door body 12 to open and close the door will be described. That is, as shown in FIG. 1, a belt fixing member 43 is installed in the door storage space 10a. The belt fixing member 43 is fixed so as to protrude upward from the bottom of the door storage space 10a, and one end of a flexible timing belt (wrapping transmission body) 45 is fixed to the tip thereof. The other end of the timing belt 45 is fixed to the door body 12. An intermediate portion of the timing belt 45 is wound around the driving pulley 54, the idler pulleys 51 and 52, and the driven pulley 53.

  The winding configuration of the timing belt 45 will be described in detail below. That is, the timing belt 45 extends in the door retracting direction from one end (point A) fixed to the belt fixing member 43, and is wound around the first idler pulley 51 of the slide body 11 in a reverse direction. It extends in the (door advancement direction), and is further wound around the driven pulley 53 in a folded manner and again extends in the door retracting direction. Subsequently, the timing belt 45 is wound around the drive pulley 54 in a folded manner and extends in the door advancement direction, and is then hooked on the second idler pulley 52 for track guidance of the timing belt 45, and finally It is fixed to the door body 12 (point B). Note that the timing belt 45 is also fixed to the door body 12 at a portion (point C) between the first idler pulley 51 and the driven pulley 53.

  In the present embodiment, the drive mechanism 20 that simultaneously drives the door 12 and the slide 11 includes the drive unit 36, the drive pulley 54, the timing belt 45, the first idler pulley 51, the driven pulley 53, It is comprised including.

  Here, the speed relationship between the slide body 11 and the door body 12 when the door is opened and closed will be described with reference to the schematic diagram of FIG. FIG. 3 shows a state in which the drive unit 36 is driven to retract the slide body 11 and the door body 12 into the door pocket body 10, and the outer peripheral speed of the drive pulley 54 at this time, that is, the timing belt is shown. The speed of 45 is VW.

  The speed V2 of the door body 12 fixed to the timing belt 45 at the point B (and point C) is equal to the speed VW of the timing belt 45 (V2 = VW). On the other hand, the speed of the driven pulley 53 around which the timing belt 45 is wound, and hence the speed V1 of the slide body 11, is half of the speed VW of the timing belt 45 according to the principle of the moving pulley (V1 = 1 / 2VW). ). That is, the retracting speed V2 of the door body 12 is twice the retracting speed V1 of the slide body 11 (V2 = 2 × V1).

  FIG. 3 shows a state where the door is retracted (opened), but when the door is advanced (closed), the drive unit 36 may be rotated in the reverse direction to rotate the drive pulley 54 in the opposite direction. Therefore, detailed description is omitted. In this case as well, the advance speed of the door body 12 is twice the advance speed of the slide body 11.

  Since the platform gate 1 of the present embodiment is configured as described above, a simple configuration using a single drive unit 36 as a door drive mechanism is realized while being a double sliding door type. Therefore, manufacturing cost and manufacturing man-hour can be reduced. Further, since the door body 12 and the slide body 11 are configured to move simultaneously and at a speed twice that of the slide body 11, the operation is smooth when the door is opened and closed.

  In addition, in this embodiment, the vertical length of the slide body 11 supported on the door pocket body 10 side is configured to be short. Specifically, the vertical length h1 of the slide body 11 is about 1/4 of the vertical length h2 of the door body 12 described above. That is, the vertical length h1 of the slide body 11 is 2/3 or less, 1/2 or less, and 1/3 or less of the vertical length h2 of the door body 12.

  Thus, by forming the vertical length h1 of the slide body 11 short, a large space (a chain line in FIG. 2) is located above the slide body 11 in the door pocket body 10 (the door storage space 10a). Space P) can be secured. As a result, other devices and members can be installed in the space P, and the platform gate 1 can be made compact as a whole. Moreover, since the said slide body 11 can be comprised small, the reduction of the material cost and weight reduction of the slide body 11 can be achieved.

  As shown in FIG. 1, the length h1 of the slide body 11 in the vertical direction is shorter than the width w1 of the slide body 11 in the door opening / closing direction. That is, the slide body 11 is formed to be long and narrow (h1 <w1). Due to the shape of the slide body 11, the space P can be secured widely, and a larger device and a larger number of devices can be arranged in the space P, so that the platform gate 1 can be made compact overall. . In addition, the material cost and weight of the slide body 11 can be reduced.

  In addition, in this embodiment, although the said slide body 11 is arrange | positioned at the lower part of the said door storage space 10a, it can also be arrange | positioned at the upper part. That is, the slide body 11 is disposed on the upper end side instead of being disposed on the lower end side of the door body 12. In this case, a space in which another device or the like can be installed can be formed below the slide body 11. It is also possible to arrange the slide body 11 at the center in the vertical direction. In this case, the space can be formed above and below the slide body 11.

  Further, in the present embodiment, the drive unit 36 that drives the timing belt 45 (and thus the electric motor of the drive unit 36) is provided in the door pocket body 10; Compared to a so-called self-propelled platform gate in which the unit 36 (electric motor) is provided on the slide body 11 and the door body 12, the slide body 11 and the door body 12 can be reduced in weight, and energy for opening and closing the door ( Specifically, there is an advantage that power consumption of the electric motor can be saved.

  Further, in the present embodiment, the drive mechanism for opening and closing the door includes the timing belt 45 and the pulleys 51 to 54, and therefore, the slide body 11 and the door body 12 can be smoothly double-slided with a simple configuration. Can do.

  Although the space P is a space in which other devices can be installed, a configuration in which no devices are installed in the space P can also be adopted. For example, as shown in FIG. 4, a transparent glass window 60 is fitted into the door bag body 10 and the door body 12 on the upper side thereof (that is, a portion not overlapping with the slide body 11 in the vertical direction), and the space A so-called see-through type platform gate can be constructed without installing any device in P. Here, since the slide body 11 has a short vertical length h1 as described above, a large area of the window 60 can be secured even when the window 60 is installed only in a region that does not overlap the slide body 11. Good see-through can be realized. Moreover, since it is not necessary to install the window 60 on the slide body 11 (in other words, see-through through the space P is realized), good see-through can be realized at a low cost as described above.

  Although the embodiment of the present invention has been described above, the technical scope of the present invention is not limited to the configuration of the above embodiment, and various modifications are possible without departing from the spirit of the present invention. For example, it can be carried out with the following modifications.

  (1) In the above embodiment, the slide body 11 is formed such that the vertical length of the slide body 11 is about ¼ of the vertical length of the door pocket body 10. However, the vertical length is arbitrary. is there. If the vertical length of the slide body 11 is at least 2/3 or less of the vertical length of the door pocket body 10, the space P can be secured to the extent that other devices and members can be installed. is there. However, if the vertical length of the slide body 11 is shortened to be 1/2 or less, or 1/3 or less, the space P can be secured more widely, and the above-described effects of downsizing and weight reduction are further enhanced. Good performance. In addition, the see-through type illustrated in FIG. 4 has an advantage that a larger installation area of the window 60 can be secured.

  (2) In the above embodiment, the timing belt 45 is employed as the winding transmission body. However, the timing belt 45 is not limited thereto, and for example, a winding transmission body such as a wire, a rope, or a chain can be used. is there. However, the use of the timing belt 45 has an advantage that a reliable opening / closing operation can be performed because no slippage occurs at all unlike a simple wire or rope transmission.

  (3) In the see-through type shown in FIG. 4, the window 60 is not limited to glass but may be a transparent one such as an acrylic resin. In some cases, it is possible to install a device with a small installation space in the space P that does not significantly impair the see-through property.

  (4) Further, instead of configuring the window 60 to be transparent, a translucent material such as ground glass may be used. In this case, it is possible to brightly illuminate the feet of the passengers on the platform by taking in light from outside the platform while blocking the view of the passengers.

  (5) In the see-through type shown in FIG. 4, the window 60 may be arranged only in the door body 12 without arranging the window 60 in the door pocket body 10. Even in this case, see-through when the door is closed can be realized. However, when a window is arranged in the door bag body 10 in addition to the door body 12, it is possible to realize both see-through when the door is open and closed, and increase the see-through area to ensure a wide passenger's field of view. There is.

  (6) In the see-through type shown in FIG. 4, the door body 12 and the window 60 of the door pocket body 10 can be provided over the entire vertical direction, that is, so as to overlap the slide body 11. In this case, the installation area of the window 60 is further increased, and the passenger's field of view can be further ensured. On the other hand, in the configuration of FIG. 4 in which the window 60 is provided so as not to overlap the slide body 11 in the vertical direction, the slide body 11 and the drive mechanism 20 can be hidden so as not to touch the eyes of the passenger, and the design is improved. Can be improved.

The partial sectional view which looked at the state where the door was closed showing the composition of the double slide type platform gate concerning one embodiment of the present invention from the track side. The side view which shows a mode that the platform gate of FIG. 1 was seen in the door retracting direction. Explanatory drawing which shows the relationship between the speed of a door body, and the speed of a slide body. The partial cross section figure which shows the modification which installed the transparent window in the door bag body and the door body.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Platform gate 10 Door bag body 10a Door storage space 11 Slide body h1 Vertical length of the slide body w1 Width of the slide body in the door opening / closing direction 12 Door body h2 Vertical length of the door body 20 Drive mechanism 60 Window

Claims (4)

A door pocket which is provided on the platform and forms a door storage space inside;
A slide body slidably supported by the door pocket body;
A door body slidably supported by the slide body;
A drive mechanism that drives both at the same time so that the speed of the door body is twice the speed of the slide body;
Have
The drive mechanism includes a winding transmission member, one end of which is fixed to a belt fixing member installed inside the door storage space and the other end fixed to the door body, and a drive supported by the inner wall of the door storage space. A pulley, and a driven pulley supported by the slide body,
The intermediate part of the winding transmission is wound around the drive pulley and the driven pulley in a folded manner,
The double-sliding platform gate characterized in that the vertical length of the slide body is 2/3 or less of the vertical length of the door body. A double-sliding platform gate according to claim 1,
The double-sliding platform gate characterized in that the length of the slide body in the vertical direction is shorter than the width of the slide body in the door opening / closing direction.   3. The double-sliding platform gate according to claim 1, wherein the sliding body is disposed on an upper end side or a lower end side of the door body. 4. A double-sliding platform gate according to any one of claims 1 to 3 ,
Two idler pulleys arranged between the drive pulley and the driven pulley and supported by the slide body,
The double sliding platform gate, wherein an intermediate portion of the winding transmission is wound around the two idler pulleys.

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