JP4149878B2 - Double sliding platform gate - Google Patents

Description

  The present invention relates to a technology of a platform gate that opens and closes a vehicle entrance / exit. More particularly, the present invention relates to the structure of a double slide type platform gate.

  A conventional double slide type platform gate is disclosed in, for example, Patent Document 1. This is driven by a linear motor (22) in which the rear door (corresponding to the slide body, 2) is installed in the door pocket (1), and the front door (corresponding to the door body, 3) is driven by the ball screw mechanism (12). This is a method of interlocking with (2).

In such a double slide type platform gate, the rear door (2) supported by the door pocket (1) is arranged closer to the track side than the front door (3) supported by the rear door (2). Is common. By doing so, the rear door (2) is hidden from the front door (3) from the passengers on the platform and cannot be seen, and the design can be enhanced as a clean appearance from the platform side.
Japanese Unexamined Patent Publication No. 2000-108890 (FIGS. 1 and 2)

  However, as shown in FIG. 5 of the present application as an explanatory diagram, the double slide platform gate as disclosed in the above-mentioned Patent Document 1 has a rear door (2) from the door pocket (1) in a state where the door is closed. The amount of protrusion is about half that of the front door (3). Note that FIG. 5 of the present application is shown in a left-right reversed relationship with FIG.

  Therefore, as shown in FIG. 5, in the configuration of Patent Document 1, a space Q is generated on the door advance side from the rear door (2) and on the track side from the front door (3). In this space Q, the distance between the front door (3) and the end of the platform is relatively long, so that the front door is left with people, luggage, etc. left behind on the track side from the front door (3). There is a problem that (3) is easily closed.

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)
In order to achieve the above-mentioned object, a double slide platform gate of the present invention includes a door bag body that is provided on the platform and forms a door storage space therein, a slide body that is slidably supported by the door bag body, A door body that is slidably supported by the slide body, and a drive mechanism that simultaneously drives the door body so that the speed of the door body is twice the speed of the slide body, The cover is disposed closer to the track than the door body, and a cover that covers the slide body is provided on a surface of the door body on the track side. The part is configured to be located on the door advance side with respect to the door advance direction end of the slide body (first invention).

  According to the first invention, in the state where the door body is closed, the space on the door advance side with respect to the door advance direction end of the slide body is covered by the cover. Therefore, it is possible to prevent the door body from being closed in a state where a person or an object is left behind in the space closer to the track than the door body.

(Second invention)
In the double-sliding platform gate of the first invention, it is preferable that the end of the cover in the door advance direction substantially coincides with the end of the door in the door advance direction (second invention).

  According to the second aspect of the invention, in the state where the door is closed, almost all of the space on the door advance side with respect to the door advance direction end of the slide body is covered by the cover. Therefore, it is possible to more reliably prevent the door body from being closed in a state where a person or an object is left behind in the space on the track side than the door body.

(Third invention)
In the double slide type platform gate of the first or second invention, the vertical width of the slide body and the vertical width of the cover are 2/3 of the vertical width of the door body. The following is preferable (third invention).

  According to the third aspect of the invention, the slide body can be reduced in size and weight. In addition, the cover covering the slide body can be reduced in size and weight. Moreover, since the slide body and the door body (including the cover) can be reduced in weight, energy for opening and closing the door can be saved. Furthermore, it is possible to reduce the size of the door bag by the size of the slide body and the cover.

(Fourth invention)
In the double slide platform gate of the third invention, the slide body is preferably arranged on the upper end side or the lower end side of the door body (fourth invention).

  According to the fourth aspect of the invention, the slide body and the cover covering the slide body are arranged close to either one of the upper and lower ends of the door body, so that a clean impression can be obtained even when viewed from the track side. Can be improved.

(Fifth invention)
In the double slide type platform gate of the fourth invention, the slide body is preferably disposed on the lower end side of the door body (fifth invention).

  According to the fifth aspect of the invention, since the cover is arranged on the lower end side of the door body, even a short luggage or the like is less likely to be left behind in the space on the track side than the door body. be able to.

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

  A double-sliding platform gate 1 shown in FIGS. 1 and 2 includes a door pocket body 10, a flat slide beam (slide body) 11 slidably supported on the door pocket body 10, and is slidable on the slide beam 11. And a flat door body 12 supported by the. The platform gate 1 is configured such that the door is opened when the train arrives at the platform and is closed at other times.

  The door bag 10 will be described. The door bag body 10 is an end portion in the short direction of the platform, and is erected at a position immediately next to the entrance / exit of the railway vehicle. The door bag body 10 is hollow and has a door storage space 10a therein. The door storage space 10a is stored with the slide beam 11 and the door body 12 overlapped as shown in FIG. It is configured to be able to. Since the platform gate 1 of this embodiment is a double slide type in this way, the width of the door storage space 10a can be reduced and the door bag body 10 can be made compact compared to a configuration in which a single door is opened and closed. Yes.

  An opening is formed at one end in the width direction of the door bag body 10 (the entrance / exit side of the railway vehicle), and the door storage space 10a communicates with the outside through this opening. Through this opening, the platform gate 1 of the present embodiment is configured such that the door body 12 is advanced to close the entrance / exit, and the door body 12 is retracted into the door storage space 10a to open the entrance / exit. .

  As shown in FIG. 1, a linear linear guide rail 31 is fixed to the lower part of the door storage space 10a. A driving pulley 54 as a rotating body is supported on the inner wall of the door storage space 10a, and a driving unit 36 is fixedly connected to the driving pulley 54. A driving output shaft of the driving unit 36 is connected to the driving pulley 54. . Although a specific configuration of the drive unit 36 is not described in detail, the drive unit 36 includes an electric motor and a speed reduction mechanism that decelerates the output rotation of the motor shaft of the electric motor, and is not shown in a control panel installed on the door pocket body 10 side. It is connected via a power supply cable.

  The slide beam 11 has a beam shape (beam 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 31 installed in the said door body 10 side. The slide beam 11 is supported so as to be slidable in the horizontal direction with respect to the door body 10 by a linear motion slide mechanism constituted by the linear guide rail 31 and the slide bearing unit 32. On the other hand, a linear guide rail 37 is fixed to the upper surface of the slide beam 11.

  Three pulleys, 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 beam 11 facing the door body 12. Specifically, two toothed idler pulleys 51 and 52 are supported on the end of the slide beam 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 beam 11 so as to be freely rotatable.

  As shown in FIG. 2, the door body 12 is disposed closer to the track than the slide beam 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 12 on the slide beam 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 beam 11 side. The door 12 is supported by the linear guide rail 37 and the slide bearing unit 38 so as to be slidable in the horizontal direction with respect to the slide beam 11 by a linear motion slide mechanism.

  As shown in FIGS. 1 to 3, a hollow box-like cover 60 is attached to the track-side surface of the door body 12. The cover 60 is attached over almost the entire length of the door body 12 in the door opening / closing direction. Therefore, the door advance direction end E2 of the cover 60 substantially coincides with the advance direction end of the door body 12. . When the door is closed, as shown in FIG. 1 and FIG. 3, the portion of the slide beam 11 that protrudes from the door pocket 10 is covered with the cover 60 (enters the cover 60). .

  Next, a configuration for opening and closing the door by moving the slide beam 11 and the door body 12 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 wall of the door storage space 10a, and one end of a flexible timing belt 45 is fixed to the tip thereof. The other end is fixed to the door body 12. The intermediate portion of the timing belt 45 is wound around the drive 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 X) fixed to the belt fixing member 43, and is wound around the first idler pulley 51 of the slide beam 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 shape 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 (Y point). Note that the timing belt 45 is also fixed to the door body 12 at a portion (point Z) 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 beam 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 beam 11 and the door body 12 when the door is opened and closed will be described with reference to FIG. FIG. 4 shows a state in which the drive unit 36 is driven to retract the slide beam 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 Y (and the point Z) 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 beam 11, is half of the speed VW of the timing belt 45 according to the principle of the moving pulley (V1 = VW / 2). ). That is, the retracting speed V2 of the door body 12 is twice the retracting speed V1 of the slide beam 11 (V2 = 2 × V1).

  FIG. 4 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 and the drive pulley 54 may be rotated 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 beam 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 slide type. Therefore, manufacturing cost and manufacturing man-hour can be reduced. Further, since the door body 12 and the slide beam 11 are simultaneously moved at a speed twice that of the slide beam 11, the smoothness of the operation when opening and closing the door is excellent.

  Further, when the cover 60 is provided on the track-side surface of the door body 12 and the door body 12 is closed, the portion where the slide beam 11 protrudes from the door pocket body 10 is covered by the cover 60. It is composed. When the door 12 is closed (FIG. 1), the door advancement direction end E2 of the cover 60 is located on the door advancement side with respect to the door advancement direction end E1 of the slide beam 11. .

  Accordingly, in the present embodiment, the cover 60 is located in a space (a space Q shown in FIG. 5) in which a person or a baggage is easily left as described above in the prior art (see FIG. 3). Therefore, the space Q is filled with the cover 60, and the door body 12 can be prevented from being closed when a person or an object is left behind on the track side from the door body 12.

  Further, the cover 60 can protect the slide beam 11 from external impacts and the like, and as a result of the slide beam 11 being hidden by the cover 60, the appearance when viewed from the track side can be made clear. .

  Furthermore, in the present embodiment, as shown in FIG. 3 and the like, the cover 60 is attached over the entire width of the door 12 in the door opening / closing direction. In other words, the door advancement direction end E2 of the cover 60 is provided so as to coincide with the door advancement direction end of the door body 12.

  Therefore, as shown in FIG. 3, the space Q on the door advance side with respect to the door advance direction end E <b> 1 of the slide beam 11 is entirely filled with the cover 60. Accordingly, it is possible to more reliably prevent a person or an object from being left on the track side than the door body 12.

  Further, in this embodiment, the slide beam 11 is formed to have a short vertical length, and is formed to be about 1/3 of the vertical length of the door body 12. Similarly, the cover 60 attached to the door body 12 is also formed to be about 1/3 of the vertical length of the door body 12.

  Thus, by forming the length in the vertical direction short, the slide beam 11 can be reduced in size and weight, and the drive energy of the drive unit 36 can be saved. Moreover, since the cover 60 can be made small, the manufacturing cost can be reduced, and the door body 12 can be reduced in weight. In this respect as well, the drive energy of the drive unit 36 can be saved. Further, the door bag 10 can be downsized. For example, in the present embodiment, as shown in FIG. 2, the thickness of the door pocket body 10 can be reduced in the upper portion where the slide beam 11 is not disposed.

  In this embodiment, the length of the slide beam 11 in the vertical direction is formed to be about 1/3 of the length of the door body 12 in the vertical direction, but the present invention is not limited to this. If the vertical length of the slide beam 11 is formed to be 2/3 or less (preferably 1/2 or less) of the vertical length of the door 12, the energy can be saved and the size of each member can be reduced. The effect of weight reduction can be exhibited.

  In this embodiment, the slide beam 11 is disposed on the lower end side of the door body 12, and the cover 60 is also disposed on the lower end side of the door body 12 correspondingly. As described above, since the space close to the platform floor of the space Q is closed by the compact cover 60 as described above, even a low-height luggage or the like is closer to the track side than the door body 12. It can be configured to be difficult to be left behind.

  However, the present invention is not limited thereto, and the slide beam 11 may be disposed on the upper end side of the door body 12 and the cover 60 may be disposed on the upper end side of the door body 12 correspondingly. Even in this case, at least a person and a tall baggage can be configured to be less likely to be left behind on the track side than the door body 12.

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. The top view of a platform gate. Explanatory drawing which shows the relationship between the speed of a door body, and the speed of a slide body. FIG. 2 is a plan view of a prior art platform gate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Platform gate 10 Door body 10a Door storage space 11 Slide beam 12 Door body 60 Cover

Claims (5)

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 for simultaneously driving the door body so that the speed of the door body is twice that of the slide body;
Have
The slide body is arranged closer to the track than the door body,
A cover that covers the slide body is provided on the track-side surface of the door body. When the door body is closed, the door advancement direction end of the cover is more than the door advancement direction end of the slide body. Is also located on the door advance side,
Double sliding platform gate.   2. The double-sliding platform gate according to claim 1, wherein an end of the cover in the door advance direction substantially coincides with an end of the door in the door advance direction.   The double-sliding platform gate according to claim 1 or 2, wherein the vertical width of the slide body and the vertical width of the cover are 2/3 of the vertical width of the door pocket body. A double-sliding platform gate characterized by:   The double-sliding platform gate according to claim 3, wherein the sliding body is arranged on an upper end side or a lower end side of the door body. 5. The double-sliding platform gate according to claim 4, wherein the sliding body is disposed on a lower end side of the door body.

Images