JP4336347B2 - Wind barrier for boarding / exiting - Google Patents

Description

  The present invention relates to a windshield for a landing that is suitable for installation at a landing such as a subway station.

For example, in subway stations, winds are generated when vehicles approach, and strong winds are generated on stairs leading to underground landings, which is dangerous for elderly people and children. In summer, air conditioning limited to landings is scattered with the movement of the vehicle, and wasteful energy is consumed. In particular, as a recent trend, conventional lines are often subterraneanly. For this reason, there are many underground stations where expresses often pass, which increases the risk at each station and wastes cooling energy. Is occasionally seen.
Installation of wind barriers (home doors) has begun to be put into practical use as a method for reducing the influence of wind pressure associated with vehicle passage. The windbreak wall is a waist height type consisting of a wall with a height of waist height installed at the end of the platform and an open / close door installed at the part facing the door of the vehicle, and the space between the home end and the ceiling is completely sealed The semi-enclosed type, in which the space between the end of the home and the ceiling is spaced from the ceiling by a predetermined distance, is considered.

The above-described waist-high platform door is effective from the viewpoint of preventing a passenger's fall accident, but has a poor function of reducing waste of cooling energy and a function of reducing adverse effects caused by wind pressure. On the other hand, the completely sealed type can eliminate the waste of cooling energy and can prevent the harmful effects caused by the wind pressure almost completely.
However, the completely sealed type has the following drawbacks.
In other words, since the completely sealed type completely seals between the landing and the track, if there is a fire at a shop at the landing, smoke only stays at the landing and spreads to the track. Therefore, there is a disadvantage that the line-of-sight distance of the boarding / alighting hall falls to a close distance in a short time. In addition, even if a vehicle fires on a track, smoke accumulates on the track while it is not exhausted. Therefore, there is an inconvenience that the line-of-sight distance on the track drops to a close distance in a short time. In order to prevent the occurrence of this inconvenience, the subway is legally required to have a track and landing area as one space, and to suppress the increase in smoke concentration by securing the volume and to secure the line-of-sight distance. (For example, JNR 124, Attachment 7 December 27, 2004). From the viewpoint of smoke prevention, there is a problem with a completely sealed home door, and at present, there are no examples of practical use in Japan.

A semi-enclosed platform door has been proposed in order to eliminate the disadvantages of a completely enclosed platform door. In other words, a semi-enclosed platform door is constructed with a wall from the end of the platform to the ceiling, and a gap is formed between the top of the wall and the ceiling, and the orbital space and the landing space are connected through this gap. The structure prevents the line of sight from deteriorating.
The semi-enclosed platform door is largely shielded by the wall between the track space and the landing area, so that harmful effects caused by wind pressure generated by the movement of the vehicle are largely prevented. However, since there is a gap that is always open at the top of the wall, there is no protection against the loss of cooling energy.

  SUMMARY OF THE INVENTION An object of the present invention is to provide a windbreak wall for a landing that has the advantages of a semi-enclosed platform door and a completely enclosed platform door.

In Embodiment 1 of the present invention, a wall built with a predetermined gap from the ceiling between the end facing the track of the landing and the ceiling, and the door portion of the vehicle stopped at the landing are opposed to each other. Opening and closing supported by an opening formed in the wall, a door that opens and closes the opening, and a gap formed between the wall and the ceiling, and the flat is maintained in a closed state and is opened and closed in the event of a fire. Ru and a door.

The opening / closing door is supported on the upper end side of the wall so as to be movable in the vertical direction in parallel with the wall surface, and is normally supported by the lock mechanism at the upper end position within the moving range to block the gap portion between the wall and the ceiling. In the event of a fire, the lock mechanism is unlocked, and the door is dropped into a storage groove formed in the wall to open the gap between the ceiling and the wall.
In Embodiment 2 of the present invention, in the windshield for boarding / alighting described in Embodiment 1 , the opening / closing door has a predetermined length that is sufficiently shorter than the entire length of the boarding / alighting hall. It is characterized by having an installed structure.

In passenger-field windshield wall of embodiment 3 In the embodiment 1 or 2 of the invention, passenger field a 2 Senshimashiki structure to established the wall and door on both sides of the edge of the landing field It is characterized by that.
In Embodiment 4 of this invention, in the windbreak wall for boarding / alighting as described in Embodiment 1 or 2 , if the boarding / alighting hall has a two-line relative structure, the walls and doors are provided only on the edges facing the landing hall track. It is characterized by installing.

  According to the windbreak wall for landings according to the present invention, since the gap provided in the upper part of the wall is closed by the door for opening and closing, even if there is a vehicle passing or the like, it may cause a bad wind pressure on the landings. Absent. Moreover, energy saving can be achieved without loss of cooling energy. However, when a fire breaks out, the electromagnetic actuating means is energized by the detection signal from the fire detector or the disaster prevention panel, and the door lock mechanism is unlocked. The open / close door falls into the storage groove due to falling or its own weight, and a gap is formed in the upper part of the wall. By this gap, the space on the track side and the space on the landing side are connected, and the concentration of smoke accumulated in the space on the track side can be reduced. As a result, it is possible to control the drop in the visibility distance at the landing and track, so that the vehicle can be operated to a safe place at the worst and the evacuable time can be extended, ensuring safety. can do. In addition, even if a fire breaks out in the vehicle, in this case, the door provided on the top of the wall is opened and the landing space is connected to the orbital space, so that the smoke concentration in the landing and orbital space is suppressed from increasing. And the deterioration of the visibility distance of the orbital space can be suppressed.

  An embodiment in which the boarding place to which the present invention is applied is installed at an underground station where there are many passing vehicles, such as express trains. Even in underground stations where there are many passing vehicles, the wind barrier for landings according to the present invention is completely cut off between the landings and the tracks, so even if vehicles pass, Never give. As a result, a safe landing can be provided without encountering strong winds on the stairs.

1 and 2 show an embodiment of the present invention. In the embodiment shown in FIGS. 1 and 2, the present invention is applied to an underground station of a type called a two-wire island platform. However, the application of the present invention to another type of underground station is as follows. As is clear from the description of the above, it is sufficiently possible.
In the figure, reference numeral 10 denotes a landing space, and 20A and 20B denote orbit spaces. The landing space 10 is built by leaving a certain gap (for example, about 10 to 50 cm) from the ceiling surface 12 between the ceiling surface 12 and the floor surface 11 and the ceiling surface 12 and the edge facing the landing track. It is blocked by the wall 13. For example, the wall 13 may have a structure in which a transparent plate is built in a lattice-shaped crosspiece. Although not particularly shown here, an opening is formed in the wall 13 so as to face the entrance door of the vehicle 30 at the stop position of the vehicle 30, and an opening / closing door is installed in this opening.

This open / close door is normally closed, and entry of wind pressure from the orbital spaces 20A and 20B to the landing area 10 is prevented when the vehicle approaches and passes.
In the present invention, an opening / closing door 14 is provided in a gap portion formed between the wall 13 and the ceiling surface 12 so as to be freely opened and closed. The open / close door 14 is provided over the entire length of the boarding / alighting hall. The total length of the landing area is, for example, about 100 to 200 m, while the opening / closing door 14 is sufficiently short, for example, about 0.5 to 2 m compared to the total length of the landing area, and has an opening and closing length of 0.5 to 2 m. The door 14 is continuously attached over the entire length of the boarding / alighting hall. There are various open / close types of the open / close door 14, but here, a case in which the door is opened and closed inward by a hinge provided at the upper end of the wall 13 is shown. FIG. 2 shows a state in which the open / close door 14 is collapsed and opened to the landing area 10 side.

Although the opening / closing operation of the open / close door 14 can be performed artificially, it is generally intended to open all the open / close doors 14 provided at the boarding area when a fire occurs. It is desirable to have a structure that automatically opens using the detection signal of the disaster prevention panel.
FIG. 3 shows an embodiment for automatically opening and closing the door 14 using a detection signal from a fire detector or a disaster prevention panel. The embodiment shown in FIG. 3 shows an embodiment using a door lock mechanism. The door lock mechanism 40 shown in FIG. 3 has a movable rod 41, a spring 42 that elastically biases the movable rod 41 in the protruding direction, an inclined surface 41A formed at the tip of the movable rod 41, and the movable rod 41 can be driven freely. The case where it comprises by the bracket 43 supported by 1 and the lock hole 14A formed in the end surface of the door 14 is shown.

According to the door lock mechanism of this structure, when the swing free end of the door 14 is brought close to the closed position and the side edge of the door 14 is brought into contact with the inclined surface 41A of the movable rod 41 (this operation is performed artificially). The movable rod 41 moves upward against the biasing force of the spring 42. When the opening / closing door 14 reaches a position where it comes into contact with the door stop 15, the movable rod 41 falls into the lock hole 14 </ b> A formed in the opening / closing door 14 by the biasing force of the spring 42. When this state is reached, the open / close door 14 is held in the closed position even if a biasing force is applied in the opening direction.
An electromagnetic actuating means 50 is provided on the upper end side of the movable rod 41. As the electromagnetic actuating means 50, for example, a suction force generating means called a plunger can be used. As is well known, the plunger includes an electromagnetic coil 51 and a suction rod 52. In the embodiment shown in FIG. 3, the front end side of the suction rod 52 is formed in a pipe shape, a movable rod constituting the door lock mechanism 40 is inserted into the pipe-shaped hollow portion, and the pin 44 is penetrated to form the suction rod 52. The case where it is set as the structure which connected the movable rod 41 is shown.

  The suction rod 52 is held at the suction start position of the electromagnetic coil 51 by the biasing force of the spring 42. If a flame is generated, a fire detection signal is transmitted, and an excitation electromagnetic current is applied to the electromagnetic coil 51 by this fire detection signal. By applying this exciting electromagnetic current, the attracting rod 52 receives an attracting force magnetically upward, and the movable attracting force 41 is moved upward through the pin 44 by this magnetic attracting force. When the movable rod 41 is completely extracted from the lock hole 14A, the open / close door 14 rotates in a direction to fall to the landing side. For this purpose, for example, a spring (not shown) is attached to the hinge 16 that rotatably supports the opening / closing door 14, and a biasing force is applied to the opening / closing door 14 in such a direction that the opening / closing door 14 falls down to the landing side. desirable. In addition, although the case where the open / close door 14 is rotated in the direction to be tilted toward the landing side has been described here as an example, if there is a margin in the orbital spaces 20A and 20B, it is not always necessary to fall to the landing side. Instead, it may fall toward the orbital space 20A, 20B side.

  When a fire occurs, an exciting current is applied to the electromagnetic actuator 50. With this exciting current, the suction rod 52 moves upward, and the tip of the movable rod 41 is removed from the engaging force with the lock hole 14A. When the movable rod 41 is completely pulled out from the lock hole 14 </ b> A, the open / close door 14 falls down toward the landing space 10 by the biasing force of a spring attached to the hinge 16, for example, and forms a gap in the upper portion of the wall 13. By forming this gap, the boarding / alighting space 10 and the orbital spaces 20A and 20B are connected to suppress an increase in smoke density.

FIG. 4 shows another embodiment of the main part of the present invention. In the embodiment shown in FIG. 4, the open / close door 14 is supported so as to be movable in the vertical direction on the upper end side of the wall 13, and normally protrudes from the upper end of the wall 13 and closes the gap portion between the wall 13 and the ceiling surface 12. However, when the fire occurs, the electromagnetic operating means 50 operates to cause the open / close door 14 to fall into the storage groove 13A formed in the wall 13 to open the space between the wall 13 and the ceiling surface 12.
As the lock mechanism that holds the open / close door 14 in the closed position, the open / close door 14 is formed of a plate-like body, and a hole 14B is formed near the lower side of the plate-like body. It is conceivable that the opening / closing door 14 is held in a closed position by allowing the suction rod 52 of the electromagnetic actuator 50 to penetrate through the hole 14B. Reference numeral 14 </ b> C denotes a handle used when the opening / closing door 14 is raised to the closed position. By lifting the opening / closing door 14 with the handle 14 </ b> C, the position of the hole 14 </ b> B can be matched with the position of the suction rod 52. When the hole 14B matches the position of the suction rod 52, the suction rod 52 moves in the protruding direction by the biasing force of the spring built in the electromagnetic actuator 50, and the suction rod 52 penetrates the hole 14B. By setting manually so as to be in this state, the open / close door 14 is held in the closed position. Reference numeral 12A denotes an engagement groove provided on the ceiling surface 12, and the closed position of the door 14 can be stably held by engaging the upper side portion of the door 14 with the engagement groove 12A.

  FIG. 5 shows an embodiment in which the present invention is applied to a two-wire relative home. The two-line relative platform has a structure in which the rear surface of the landing is a wall surface 16 and only one of the platforms faces the orbit space 20. In the case of a station having this structure, the wall 13 and the open / close door 14 may be installed only on the edge facing the track space.

  The boarding / unwinding windbreak according to the present invention is used for a subway station or a station that is treated as an underground station.

Sectional drawing for demonstrating the Example of this invention. Sectional drawing for demonstrating the state which the principal part of this invention operated. Sectional drawing for demonstrating the Example of the principal part of this invention. Sectional drawing for demonstrating the other Example of the principal part of this invention. Sectional drawing for demonstrating the other application example of this invention.

Explanation of symbols

10 Boarding / Exiting Space 40 Door Lock Mechanism
11 Floor 41 Movable rod
12 Ceiling 41A Inclined surface
13 Wall 42 Spring
14 Opening and closing door 43 Bracket
15 Toto 44 Pin
16 Hinge 50 Electromagnetic actuation means 20A, 20B Orbit space 51 Electromagnetic coil
30 vehicles 52 suction rod

Claims (4)

Between the edge facing the track of the subway platform and the ceiling, a wall built with a predetermined gap from the ceiling, and an opening formed in the wall facing the door part of the vehicle stopped at the platform , The door that opens and closes the opening, and a gap formed between the wall and the ceiling so as to be freely opened and closed. An opening and closing door,
The opening / closing door is supported on the upper end side of the wall so as to be movable in the vertical direction in parallel with the wall surface, and is normally supported by a lock mechanism at the upper end position within the moving range so as to form a gap portion between the wall and the ceiling. When the door is closed and the fire breaks out, the lock mechanism is unlocked, and the door is dropped into a storage groove formed in the wall to open the gap between the ceiling and the wall. A windbreak for subway platforms. 2. A windbreak for a subway entrance / exit according to claim 1 , wherein the opening / closing door has a predetermined length that is sufficiently shorter than the entire length of the getting-on / off location, and the opening / closing door of a predetermined length is installed over the entire length of the getting-on / off location. A windbreak for a subway boarding / exiting hall. 3. A subway entrance windbreak according to claim 1 or 2 , wherein the entrance and exit doors have a two-wire island structure, and the walls and the doors are installed on both sides of the entrance / exit. Wind barrier for boarding / exiting. 3. A windbreak for a subway platform according to claim 1 or 2 , wherein if the platform is a two-line relative structure, the wall and the door are installed only on the edge facing the track of the platform. Wind barrier for subway platform.

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