JP2017105436A - Platform door structure, method for manufacturing platform fence, and method for installing platform fence - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable safety conformation on the condition that a gate space is set in a closed state even during installation of a platform fence and to reduce installation cost of the platform fence.SOLUTION: This application discloses a platform door structure provided with: a first door unit that is installed as one of a plurality of door units on a platform; a confirmation signal generation unit that outputs a confirmation signal for confirming the opened/closed state of a gate space by the first door unit to the first door unit; and a return circuit that forms a closed loop circuit for defining a signal transmission route where the confirmation signal generation unit is set as a start point or an end point. When the state is normal, the first door unit closes the closed loop circuit to permit transmission of the confirmation signal to the return circuit. The return circuit returns the confirmation signal received from the first door unit to the confirmation signal generation unit.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a technique for installing a platform fence on a platform.

  Platform fences are used at various stations. The platform fence isolates passengers on the platform from the track space through which the train passes. As a result, the passenger is appropriately protected by the platform fence (see Patent Document 1). When the train stops, the platform fence forms a gate space in front of the train entrance. As a result, the passenger can go back and forth between the platform and the train through the train entrance / exit and the gate space.

JP 2011-20657 A

  It generally takes several weeks to complete the platform fence on the platform. Thus, passengers will use the platform on which the unfinished platform fence is installed.

  The platform fence includes a plurality of door units aligned on the platform. The gate space described above is formed between adjacent door units. The gate space remains open until the platform fence is completed. Thus, passengers can travel between the platform and the train through the gate space formed by the unfinished platform fence.

  After the platform fence is completed, the train departs on condition that the gate space is closed. If the gate space is not closed, the departure of the train is restrained because a human may be sandwiched between the doors that close the gate space. On the other hand, before the platform fence is completed, as described above, the gate space is maintained in the open state, so that it is impossible to confirm the safety on the condition that the gate space is in the closed state. Therefore, safety confirmation relies on visual inspection by a supervisor. This greatly affects the installation cost of the platform fence.

  An object of the present invention is to enable safety confirmation on the condition that the gate space is in a closed state even during the installation of the platform fence, and to reduce the installation cost of the platform fence. Specifically, an object of the present invention is to provide a platform fence capable of controlling the opening and closing of the gate space not only after the installation of the platform fence is completed but also in the process of installing the platform fence. That is, an object of the present invention is to enable efficient confirmation of the open / closed state of the gate space by devising the configuration of each of the plurality of door units that are sequentially installed when installing the platform fence.

  The platform door structure according to an aspect of the above-described embodiment forms a part of a platform fence that forms a gate space that allows passengers to pass by using a plurality of door units arranged on the platform. The platform door structure includes a first door unit installed on the platform as one of the plurality of door units, and a confirmation signal for confirming an open / closed state of the gate space by the first door unit. A closed loop circuit that defines a transmission path of a signal having the confirmation signal generation unit as a start point and an end point is formed in cooperation with the confirmation signal generation unit that outputs to the one-door unit, and the first door unit and the confirmation signal generation unit. A return circuit. The first door unit allows transmission of the confirmation signal to the return circuit. The return circuit returns the confirmation signal received from the first door unit to the confirmation signal generator.

  According to the above configuration, if the first door unit is normal, the first door unit closes the closed loop circuit, so that the confirmation signal for confirming the open / closed state of the gate space is sent from the first door unit to the return circuit. Communicated. Thereafter, the return circuit sends a confirmation signal to the confirmation signal generator, so that the confirmation signal generator can confirm the open / closed state of the gate space even before the platform fence is completed. As a result, even during the installation of the platform fence, safety confirmation on the condition that the gate space is in a closed state can be executed without depending on the visual observation by the supervisor. Therefore, the installation cost of the platform fence is reduced.

  Regarding the above configuration, the confirmation signal may be used to confirm whether or not the first door unit has completely closed the gate space. When the first door unit is completely closed, the first door unit may close the closed loop circuit and allow the confirmation signal to be transmitted to the return circuit.

  According to the above configuration, when the first door unit completely closes the gate space, the closed loop circuit is closed and the transmission of the confirmation signal to the return circuit is allowed. Therefore, the confirmation signal is transmitted from the first door unit to the return circuit. Is transmitted to. Thereafter, the return circuit sends a confirmation signal to the confirmation signal generator, so that the confirmation signal generator can confirm the open / closed state of the gate space even before the platform fence is completed. As a result, even during the installation of the platform fence, safety confirmation on the condition that the gate space is completely closed can be performed without depending on the visual observation by the supervisor. Therefore, the installation cost of the platform fence is reduced.

  With regard to the above configuration, the platform door structure may further include a signal line laid between the first door unit and the return circuit. The plurality of door units may include a second door unit that can be electrically connected to the signal line.

  According to said structure, a platform fence is completed after the assembly | attachment of the 2nd door unit to a platform door structure. Since the second door unit is connected to a signal line laid between the first door unit and the return circuit, an operator who installs the platform fence does not need to move the return circuit unnecessarily.

  In the above configuration, the first door unit may include a switch that relays the confirmation signal when the first door unit completely closes the gate space. The plurality of door units may include a second door unit that can be electrically connected to the switch. When the second door unit is electrically connected to the switch, the return circuit may be electrically connected to the second door unit.

  According to said structure, a platform fence is completed after the assembly | attachment of the 2nd door unit to a platform door structure. When the second door unit is connected to the switch of the first door unit, the return circuit is electrically connected to the second door unit. Therefore, even after the second door unit is incorporated into the platform door structure. The confirmation signal generation unit can execute the safety confirmation on the condition that the gate space is in the closed state without depending on the visual observation by the supervisor. Therefore, the installation cost of the platform fence is reduced.

  With regard to the above configuration, the return circuit may be built in the first door unit.

  According to the above configuration, since the return circuit is built in the first door unit, an operator who installs the platform fence does not need to prepare a dedicated space for installing the return circuit. In addition, the return circuit is suitably protected by the first door unit.

  In the above configuration, the first door unit may include a switch that relays the confirmation signal when the first door unit completely closes the gate space. The return circuit may include an output port that can be electrically connected to the confirmation signal generator. The plurality of door units may include a second door unit that can be electrically connected to the switch. The confirmation signal is transmitted from the switch to the second door unit in the presence of the second door unit, and is output from the output port to the confirmation signal generator in the absence of the second door unit. May be.

  According to said structure, a platform fence is completed after the assembly | attachment of the 2nd door unit to a platform door structure. Since the confirmation signal is transmitted from the switch of the first door unit to the second door unit in the presence of the second door unit, the transmission path of the confirmation signal is appropriately switched before and after the installation of the second door unit. . Therefore, the confirmation signal generation unit can execute the safety confirmation on the condition that the gate space is in a closed state without depending on the visual observation by the supervisor. As a result, the installation cost of the platform fence is reduced.

  The platform fence manufactured by the manufacturing method according to another aspect of the above-described embodiment forms a gate space that allows passengers to travel by using a plurality of door units arranged on the platform. The manufacturing method includes a step of confirming an open / close state of the gate space each time the plurality of door units are installed, and a step of performing open / close control of the gate space by the door unit whose confirmation of the open / close state is completed. , Until the predetermined number of door units are installed.

  According to the above configuration, since the open / close state of the gate space is confirmed every time a plurality of door units are installed, the open / close state of the gate space is confirmed. A safety check will be performed. The process of checking the opening / closing state of the gate space and the step of performing the opening / closing control of the gate space by the door unit whose opening / closing state has been confirmed are executed until a predetermined number of door units are installed. However, opening and closing control of the gate space is performed, and passengers can safely travel through the gate space.

  With respect to the above-described configuration, each time the plurality of door units are installed, the step of checking the open / closed state of the gate space is (i) installed on the platform as one of the plurality of door units. The first door unit, a confirmation signal generating unit for outputting a confirmation signal for confirming the open / closed state of the gate space by the first door unit to the first door unit, and the confirmation signal for the first door. Forming a closed loop circuit that defines a signal transmission path with the confirmation signal generation unit as a start point and an end point using a return circuit that receives from the unit and returns to the confirmation signal generation unit; and (ii) in the closed loop circuit Adding a second door unit as another one of the plurality of door units; and (iii) the second door unit is And outputting said confirmation signal to the pressure has been a new closed-loop circuit may include.

  According to the above configuration, the platform fence is completed after the incorporation of the second door unit into the closed loop circuit. If the first door unit is normal, the first door unit closes the closed loop circuit before the second door unit is incorporated into the closed loop circuit. It is transmitted from the first door unit to the return circuit. Thereafter, the return circuit sends a confirmation signal to the confirmation signal generator, so that the confirmation signal generator can confirm the open / closed state of the gate space even before the platform fence is completed. As a result, even during the installation of the platform fence, safety confirmation on the condition that the gate space is in a closed state can be executed without depending on the visual observation by the supervisor. Therefore, the installation cost of the platform fence is reduced.

  In the above configuration, the step of adding the second door unit to the closed loop circuit is a step of electrically connecting the second door unit to a signal line extending between the first door unit and the return circuit. May be included.

  According to the above configuration, the step of adding the second door unit to the closed loop circuit includes the step of electrically connecting the second door unit to the signal line extending between the first door unit and the return circuit. The operator who installs the platform fence does not need to move the return circuit unnecessarily.

  Regarding the above configuration, the step of adding the second door unit to the closed-loop circuit includes (i) releasing an electrical connection between the first door unit and the return circuit; A step of electrically connecting a second door unit to the first door unit; and (iii) a step of electrically connecting the return circuit to the second door unit.

  According to the above configuration, since the return circuit is electrically connected to the second door unit, the confirmation signal generation unit can be visually checked by the monitor even after the second door unit is assembled into the platform door structure. The safety check can be executed on the condition that the gate space is closed without depending on the above. As a result, safety confirmation can be performed on the condition that the gate space is closed even during the installation of the platform fence. Therefore, the installation cost of the platform fence is reduced.

  In the above configuration, the first door unit may include a switch that relays the confirmation signal when the first door unit completely closes the gate space. The return circuit may include an output port built in the first door unit and electrically connected to the confirmation signal generator. The closed loop circuit may be formed by an electrical connection between the output port and the confirmation signal generation unit. Adding the second door unit to the closed loop circuit may include electrically connecting the switch to the second door unit while releasing the electrical connection.

  According to the above configuration, since the return circuit is built in the first door unit, an operator who installs the platform fence does not need to prepare a dedicated space for installing the return circuit. In addition, the return circuit is suitably protected by the first door unit. Since the confirmation signal is transmitted from the switch of the first door unit to the second door unit in the presence of the second door unit, the transmission path of the confirmation signal is appropriately switched before and after the installation of the second door unit. . The confirmation signal generation unit can execute a safety confirmation on condition that the gate space is closed. As a result, even during the installation of the platform fence, safety confirmation on the condition that the gate space is in a closed state can be executed without depending on the visual observation by the supervisor. Therefore, the installation cost of the platform fence is reduced.

  The platform fence installed by the installation method according to yet another aspect of the above-described embodiment forms a gate space that allows passengers to travel by using a plurality of door units arranged on the platform. The installation method includes a step of confirming an open / close state of the gate space each time the plurality of door units are installed, and a step of performing opening / closing control of the gate space by the door unit whose confirmation of the open / close state is completed. , Until the predetermined number of door units are installed.

  According to the above configuration, since the open / close state of the gate space is confirmed every time a plurality of door units are installed, the open / close state of the gate space is confirmed. A safety check will be performed. The process of checking the opening / closing state of the gate space and the step of performing the opening / closing control of the gate space by the door unit whose opening / closing state has been confirmed are executed until a predetermined number of door units are installed. However, opening and closing control of the gate space is performed, and passengers can safely travel through the gate space.

  The above-described technology enables safety confirmation on the condition that the gate space is in a closed state even during the installation of the platform fence, and makes it possible to reduce the installation cost of the platform fence. According to the present invention, even when the platform fence is not completed, the gate space that is formed each time the door units are sequentially installed can be controlled to be opened and closed, and sequentially using the door units that are actually installed. The installation work can proceed, and the platform fence can be operated immediately after the last door unit is installed.

It is a conceptual diagram of the platform door structure of 1st Embodiment. 1 is a schematic view of an extended platform door structure. FIG. 1 is a schematic view of an extended platform door structure. FIG. It is the schematic of a platform fence. It is a schematic flowchart showing the manufacturing method (or installation method) of the platform fence shown by FIG. It is a conceptual diagram of the platform door structure of 2nd Embodiment. 6 shows a platform door structure during step S120 of the manufacturing method shown in FIG. 6 shows a platform door structure during step S120 of the manufacturing method shown in FIG. It is a schematic top view of the return circuit of 3rd Embodiment. It is a conceptual diagram of the platform door structure of 4th Embodiment. It is the schematic of a platform fence. It is the schematic of a platform fence (5th Embodiment).

<First Embodiment>
It generally takes several weeks to complete the platform fence on the platform. Thus, passengers will board the train through an unfinished platform fence. Alternatively, the passenger will get off the train through an unfinished platform fence. In the following description, the term “platform door structure” means an incomplete platform fence (a state in which some door units are not yet installed). In the first embodiment, an exemplary platform door structure is described that enables safety confirmation on condition that the gate space is closed.

  FIG. 1 is a conceptual diagram of a platform door structure 100 according to the first embodiment. With reference to FIG. 1, a platform door structure 100 is described.

  FIG. 1 schematically shows door units 210, 220, 230, 240, 250. The platform fence is completed by aligning the door units 210, 220, 230, 240, 250 on a platform (not shown). FIG. 1 means that the door units 210, 220 are installed on the platform, while the door units 230, 240, 250 are not installed on the platform. The door units 210, 220, 230, 240, 250 may be structurally identical.

  In the present embodiment, the platform fence includes five door units 210, 220, 230, 240, 250. Alternatively, the platform fence may include less than 5 door units. Further alternatively, the platform fence may include more than five door units. The principle of this embodiment is not limited at all depending on how many door units the platform fence includes.

  The platform door structure 100 shown in FIG. 1 includes the door units 210 and 220 described above. The platform door structure 100 further includes a control panel 300 and a return circuit 400. The gate space GSP is formed between the door units 210 and 220. Passengers can travel between the train and the platform through the gate space GSP.

  Control panel 300 includes an input circuit 340. The input circuit 340 forms part of a closed loop circuit 600 that spans the control panel 300, the door units 210 and 220, and the return circuit 400.

  The input circuit 340 generates a confirmation signal for confirming whether or not the gate space GSP is completely closed by the door units 210 and 220. The confirmation signal is then output from the control panel 300. If the door units 210 and 220 completely close the gate space GSP, the confirmation signal can be returned to the control panel 300 through the closed loop circuit 600. In this case, the control panel 300 can confirm that the door units 210 and 220 completely close the gate space GSP. If the control panel 300 does not receive the confirmation signal, the control panel 300 can determine that the door units 210 and 220 have not completely closed the gate space GSP. In this case, the control panel 300 may execute various processes (for example, generation of a warning sound) for suppressing the departure of the train. The principle of this embodiment is not limited to a specific process of the control panel 300 when the door units 210 and 220 do not completely close the gate space GSP. In the present embodiment, the confirmation signal generation unit is exemplified by the control panel 300. The first door unit is exemplified by the door unit 220.

  In the present embodiment, the door unit 220 exemplified as the first door unit directly receives the confirmation signal from the control panel 300 exemplified as the confirmation signal generation unit. Alternatively, the first door unit may receive the confirmation signal indirectly from the confirmation signal generator. The principle of the present embodiment is not limited by how the first door unit receives the confirmation signal from the confirmation signal generator.

  The confirmation signal may be generated in response to a manual operation on the control panel 300. Alternatively, the confirmation signal may be generated in conjunction with the operation of the train (for example, opening and closing of a train door). The principle of this embodiment is not limited to a specific signal generation technique for generating a confirmation signal.

  The door unit 210 includes a switch 214. The door unit 220 includes a switch 224. Similar to the input circuit 340 of the control panel 300, the switches 214 and 224 of the door units 210 and 220 form a part of the closed loop circuit 600. The switch 214 is electrically connected to the input circuit 340 of the control panel 300 and the switch 224 of the door unit 220 by a signal line. The switch 224 is connected to the switch 214 of the door unit 210 and the return circuit 400 by a signal line.

  The door unit 210 includes a door (not shown) that is displaced between an open position where the gate space GSP is completely opened and a closed position where the gate space GSP is completely closed. When the door of the door unit 210 reaches the closed position, the switch 214 is closed. In this case, the confirmation signal transmitted from the control panel 300 to the door unit 210 is further transmitted from the door unit 210 to the door unit 220. If the door of the door unit 210 does not reach the closed position, the switch 214 remains open. In this case, since transmission of the confirmation signal is interrupted by the door unit 210, the control panel 300 does not receive the confirmation signal. As a result, the control panel 300 can determine that the gate space GSP is not completely closed.

  Similar to the door unit 210, the door unit 220 includes a door (not shown) that is displaced between an open position where the gate space GSP is completely opened and a closed position where the gate space GSP is completely closed. When the door of the door unit 220 reaches the closed position, the switch 224 is closed. In this case, the confirmation signal transmitted from the door unit 210 to the door unit 220 is further transmitted from the door unit 220 to the return circuit 400. The confirmation signal can then return to the control panel 300 through the return circuit 400. As a result, the control panel 300 can confirm that the gate space GSP is completely closed.

  If the door of the door unit 220 does not reach the closed position, the switch 224 remains open. In this case, since transmission of the confirmation signal is interrupted by the door unit 220, the control panel 300 does not receive the confirmation signal. As a result, the control panel 300 can determine that the gate space GSP is not completely closed.

  Each of the switches 214 and 224 may be closed in response to a signal from a sensor (for example, a proximity switch: not shown) that detects the position of each door of the door units 210 and 220. When each door of the door units 210 and 220 reaches the closed position, the proximity switch generates a trigger signal. The switches 214 and 224 may be closed according to the trigger signal. The principle of this embodiment is not limited to a specific signaling technique for actuating the switches 214, 224.

  Return circuit 400 includes an input port 410 and an output port 420. The input port 410 of the return circuit 400 is electrically connected to the switch 224 of the door unit 220 by a signal line. The output port 420 of the return circuit 400 is electrically connected to the input circuit 340 of the control panel 300 through another signal line. Accordingly, the return circuit 400 can form a closed loop circuit 600 that defines a signal transmission path having the control panel 300 as a start point and an end point in cooperation with the control panel 300 and the door units 210 and 220.

  If at least one of the door units 210 and 220 has not reached the closed position, the return circuit 400 does not receive a confirmation signal. As a result, since the control panel 300 also does not receive the confirmation signal, the control panel 300 can determine that the gate space GSP is not completely closed.

  If each door of the door units 210 and 220 has reached the closed position, the confirmation signal is input to the input port 410 of the return circuit 400. Thereafter, the confirmation signal can be returned to the control panel 300 through the output port 420 of the return circuit 400. As a result, the control panel 300 can confirm that the gate space GSP is completely closed.

  FIG. 2 is a schematic view of an extended platform door structure 100. With reference to FIGS. 1 and 2, the platform door structure 100 is further described.

  As shown in FIG. 2, an operator who installs a platform fence can place the door unit 230 next to the door unit 220. As a result, the gate space GSP is formed not only between the door units 210 and 220 but also between the door units 220 and 230.

  Door unit 220 includes a pair of doors (not shown). One of the pair of doors is used to open and close the gate space GSP between the door units 210 and 220. The other of the pair of doors is used to open and close the gate space GSP between the door units 220 and 230. When the door unit 230 is installed, an operator who installs the platform fence may change the drive setting of the door unit 220. As a result, the door unit 220 not only opens and closes the gate space GSP between the door units 210 and 220 in cooperation with the door unit 210 but also opens the gate space GSP between the door units 220 and 230 with the door unit 230. Open and close in collaboration. The switch 224 of the door unit 220 is closed when both the pair of doors reach the closed position. If at least one of the pair of doors has not reached the closed position, the switch 224 of the door unit 220 remains open.

  Similar to the door units 210 and 220, the door unit 230 includes a switch 234 and a door (not shown). Similar to the doors of the door units 210 and 220, the door of the door unit 230 is between an open position where the gate space GSP between the door units 220 and 230 is completely opened and a closed position where the gate space GSP is completely closed. Displace.

  The switch 234 of the door unit 230 is electrically connected to the switch 224 of the door unit 220 and the input port 410 of the return circuit 400 through a signal line. If both doors of the door units 210 and 220 have reached the closed position (that is, if the switches 214 and 224 are closed), the switch 234 of the door unit 230 sends a confirmation signal to the door unit 220. It can be received from the switch 224.

  Similar to the switches 214 and 224 of the door units 210 and 220, the switch 234 is closed when the door of the door unit 230 reaches the closed position. In this case, the confirmation signal transmitted from the door unit 220 to the door unit 230 is further transmitted from the door unit 230 to the return circuit 400. The confirmation signal can then return to the control panel 300 through the return circuit 400. As a result, the control panel 300 can confirm that the gate space GSP is completely closed.

  If the door of the door unit 230 does not reach the closed position, the switch 234 remains open. In this case, since the transmission of the confirmation signal is interrupted by the door unit 230, the control panel 300 does not receive the confirmation signal. As a result, the control panel 300 can determine that the gate space GSP is not completely closed.

  The input port 410 of the return circuit 400 is electrically connected to the switch 234 of the door unit 230 by a signal line. The output port 420 of the return circuit 400 is electrically connected to the input circuit 340 of the control panel 300 through another signal line. Therefore, the return circuit 400 can form a closed loop circuit 600 that defines a transmission path of a signal having the control panel 300 as a start point and an end point in cooperation with the control panel 300 and the door units 210, 220, and 230.

  If at least one of the door units 210, 220, and 230 has not reached the closed position, the return circuit 400 does not receive a confirmation signal. As a result, since the control panel 300 also does not receive the confirmation signal, the control panel 300 can determine that the gate space GSP is not completely closed.

  If each of the doors of the door units 210, 220, and 230 has reached the closed position, the confirmation signal is input to the input port 410 of the return circuit 400. Thereafter, the confirmation signal can be returned to the control panel 300 through the output port 420 of the return circuit 400. As a result, the control panel 300 can confirm that the gate space GSP is completely closed.

  FIG. 3 is a schematic view of an extended platform door structure 100. With reference to FIGS. 2 and 3, the platform door structure 100 is further described.

  As shown in FIG. 3, an operator who installs a platform fence can place the door unit 240 next to the door unit 230. As a result, the gate space GSP is formed between the door units 210 and 220, between the door units 220 and 230, and between the door units 230 and 240.

  Door unit 230 includes a pair of doors (not shown). One of the pair of doors is used to open and close the gate space GSP between the door units 220 and 230. The other of the pair of doors is used to open and close the gate space GSP between the door units 230 and 240. When the door unit 240 is installed, an operator who installs the platform fence may change the drive setting of the door unit 230. As a result, the door unit 230 not only opens and closes the gate space GSP between the door units 220 and 230 in cooperation with the door unit 220, but also opens the gate space GSP between the door units 230 and 240 with the door unit 240. Open and close in collaboration. The switch 234 of the door unit 230 is closed when both of the pair of doors reach the closed position. If at least one of the pair of doors has not reached the closed position, the switch 234 of the door unit 230 remains open.

  Similar to door units 210, 220, and 230, door unit 240 includes a switch 244 and a door (not shown). Similar to the doors of the door units 210, 220, and 230, the door of the door unit 240 has an open position in which the gate space GSP between the door units 230 and 240 is completely opened and a closed position in which the gate space GSP is completely closed. Displace between.

  The switch 244 of the door unit 240 is electrically connected to the switch 234 of the door unit 230 and the input port 410 of the return circuit 400 through a signal line. If the door of each of the door units 210, 220, and 230 has reached the closed position (that is, if the switches 214, 224, and 234 are closed), the switch 244 of the door unit 240 sends a confirmation signal, It can be received from the switch 234 of the door unit 230.

  Similar to the switches 214, 224, and 234 of the door units 210, 220, and 230, when the door of the door unit 240 reaches the closed position, the switch 244 is closed. In this case, the confirmation signal transmitted from the door unit 230 to the door unit 240 is further transmitted from the door unit 240 to the return circuit 400. The confirmation signal can then return to the control panel 300 through the return circuit 400. As a result, the control panel 300 can confirm that the gate space GSP is completely closed.

  If the door of the door unit 240 does not reach the closed position, the switch 244 remains open. In this case, since transmission of the confirmation signal is interrupted by the door unit 240, the control panel 300 does not receive the confirmation signal. As a result, the control panel 300 can determine that the gate space GSP is not completely closed.

  The input port 410 of the return circuit 400 is electrically connected to the switch 244 of the door unit 240 by a signal line. The output port 420 of the return circuit 400 is electrically connected to the input circuit 340 of the control panel 300 through another signal line. Therefore, the return circuit 400 can form a closed loop circuit 600 that defines a transmission path of a signal having the control panel 300 as a start point and an end point in cooperation with the control panel 300 and the door units 210, 220, 230, and 240. .

  If at least one of the door units 210, 220, 230, and 240 has not reached the closed position, the return circuit 400 does not receive the confirmation signal. As a result, since the control panel 300 also does not receive the confirmation signal, the control panel 300 can determine that the gate space GSP is not completely closed.

  If each of the doors of the door units 210, 220, 230, and 240 has reached the closed position, the confirmation signal is input to the input port 410 of the return circuit 400. Thereafter, the confirmation signal can be returned to the control panel 300 through the output port 420 of the return circuit 400. As a result, the control panel 300 can confirm that the gate space GSP is completely closed.

  FIG. 4 is a schematic view of the platform fence 500. With reference to FIGS. 3 and 4, the platform fence 500 will be described.

  An operator arranges the door unit 250 next to the door unit 240 and completes the platform fence 500. The gate space GSP is formed between the door units 210 and 220, between the door units 220 and 230, between the door units 230 and 240, and between the door units 240 and 250.

  Door unit 240 includes a pair of doors (not shown). One of the pair of doors is used to open and close the gate space GSP between the door units 230 and 240. The other of the pair of doors is used to open and close the gate space GSP between the door units 240 and 250. When the door unit 250 is installed, an operator who installs the platform fence 500 may change the drive setting of the door unit 240. As a result, the door unit 240 not only opens and closes the gate space GSP between the door units 230 and 240 in cooperation with the door unit 230 but also opens the gate space GSP between the door units 240 and 250 with the door unit 250. Open and close in collaboration. The switch 244 of the door unit 240 is closed when both the pair of doors reach the closed position. If at least one of the pair of doors has not reached the closed position, the switch 244 of the door unit 240 remains open.

  Similar to door units 210, 220, 230, and 240, door unit 250 includes a switch 254 and a door (not shown). Similar to the doors of the door units 210, 220, 230, and 240, the door of the door unit 250 has an open position where the gate space GSP between the door units 240 and 250 is completely opened and a closed position where the gate space GSP is completely closed. It is displaced between.

  The switch 254 of the door unit 250 is electrically connected to the switch 244 of the door unit 240 and the input circuit 340 of the control panel 300 through a signal line. If the door of each of the door units 210, 220, 230, 240 has reached the closed position (ie, if the switches 214, 224, 234, 244 are closed), the switch 254 of the door unit 250 is A confirmation signal can be received from the switch 244 of the door unit 240.

  Similar to the switches 214, 224, 234, and 244 of the door units 210, 220, 230, and 240, when the door of the door unit 250 reaches the closed position, the switch 254 is closed. In this case, the confirmation signal transmitted from the door unit 240 to the door unit 250 can be returned from the door unit 240 to the control panel 300. As a result, the control panel 300 can confirm that the gate space GSP is completely closed.

  If the door of the door unit 250 does not reach the closed position, the switch 254 remains open. In this case, since transmission of the confirmation signal is interrupted by the door unit 250, the control panel 300 does not receive the confirmation signal. As a result, the control panel 300 can determine that the gate space GSP is not completely closed.

  FIG. 5 is a schematic flowchart showing a manufacturing method (or installation method) of the platform fence 500. With reference to FIG. 1 thru | or FIG. 5, the manufacturing method of the platform fence 500 is demonstrated.

(Step S110)
An operator who installs the platform fence 500 on a platform (not shown) forms a closed loop circuit 600 and constructs the platform door structure 100. The closed-loop circuit 600 of the platform door structure 100 described with reference to FIG. 1 includes door units 210 and 220, a control panel 300, and a return circuit 400. The closed-loop circuit 600 of the platform door structure 100 described with reference to FIG. 2 includes door units 210, 220, 230, a control panel 300, and a return circuit 400. The closed-loop circuit 600 of the platform door structure 100 described with reference to FIG. 3 includes door units 210, 220, 230, and 240, a control panel 300, and a return circuit 400. After forming and closing the closed loop circuit 600, step S120 is performed.

(Step S120)
The operator installs a new door unit in the closed loop circuit 600. In step S110, if the platform door structure 100 shown in FIG. 1 is formed, the operator releases the electrical connection between the door unit 220 and the return circuit 400. Then, the operator electrically connects the door unit 230 to the door unit 220 using an appropriate signal line. As shown in FIG. 2, the operator may electrically connect the return circuit 400 to the door unit 230 using an appropriate signal line. Alternatively, the operator may install the door units 230 and 240 after the electrical connection between the door unit 220 and the return circuit 400 is released. In this case, the worker may electrically connect the door unit 230 to the door unit 220 and the door unit 240 using an appropriate signal line as shown in FIG. In addition, the operator may electrically connect the door unit 240 to the return circuit 400 using an appropriate signal line. Further alternatively, the operator may install the door units 230, 240, 250 after the electrical connection between the door unit 220 and the return circuit 400 is released. In this case, as shown in FIG. 4, the operator electrically connects the door unit 230 to the door units 220 and 240 using an appropriate signal line, and electrically connects the door unit 240 to the door unit 250. You may connect to.

  As described above, since the door unit newly installed on the platform is electrically connected to the door unit already installed on the platform, the door unit is newly installed each time a new door unit is installed. Thus, a closed loop circuit 600 including the door unit is formed. When the control panel 300 outputs a confirmation signal to the new closed loop circuit 600, the open / close state of the gate space GSP by the door unit included in the platform door structure is confirmed. As a result, the operator can confirm whether or not the door unit is properly installed. Thereafter, the gate space GSP is opened or closed under the control of the control panel 300. As a result, the passenger can come and go through the gate space GSP formed by the platform door structure 100 even before the platform fence 500 is completed. After a series of operations such as addition of a new door unit, formation of a new closed loop circuit 600, and confirmation of the open / closed state of the gate space GSP, step S130 is executed.

(Step S130)
In step S120, if the platform door structure 100 shown in FIG. 2 or 3 is obtained, step S120 is executed again. In step S120, if the platform fence 500 shown in FIG. 4 is obtained, the worker finishes the installation work.

  The installation work is usually performed between the last train and the first train, but during this time, one door unit is not necessarily installed, and a plurality of door units (for example, two) may be installed. In such a case, work such as confirmation of the open / close state may be performed each time an individual door unit is installed, but a series of operations such as confirmation of the open / close state of a plurality of door units installed on the same day may be performed. You may do the work.

Second Embodiment
The technique described in connection with the first embodiment allows an operator to place a return circuit near a door unit installed on the platform. However, according to the technique of the first embodiment, the operator needs to move the return circuit each time a door unit is added. In the second embodiment, a technique is described that allows an operator to add a door unit to a closed loop circuit without moving the return circuit.

  FIG. 6 is a conceptual diagram of the platform door structure 100A of the second embodiment. The platform door structure 100A will be described with reference to FIGS. 2 and 4 to 6. The same code | symbol is attached | subjected with respect to the element same as 1st Embodiment. The description of the first embodiment is applied to elements having the same reference numerals.

  Similar to the first embodiment, the platform door structure 100 </ b> A includes door units 210 and 220 and a control panel 300. The description of the first embodiment is incorporated in these elements.

  An operator can add the door units 230, 240, and 250 to the platform door structure 100A, and build the platform fence 500 described with reference to FIG. 4 on the platform. The description of the first embodiment is applied to the door units 230, 240, and 250.

  The platform door structure 100A further includes a return circuit 400A and a signal line 110. The return circuit 400 </ b> A is disposed in or near the planned installation area of the door unit 250. The door unit 250 is finally installed on a platform (not shown) in the door units 210, 220, 230, 240, 250. Alternatively, the door unit 250 may be defined as a device located at the end of the platform fence. The return circuit 400A is functionally common with the return circuit 400 shown in FIG. Accordingly, like the return circuit 400 described with reference to FIG. 2, the return circuit 400A includes an input port 410 and an output port 420. The signal line 110 is connected to the switch 224 of the door unit 220 and the input port 410 of the return circuit 400A. The output port 420 of the return circuit 400A is connected to the input circuit 340 of the control panel 300 by an appropriate signal line. Therefore, the signal line 110, the door units 210 and 220, the control panel 300, and the return circuit 400A form a closed loop circuit 600A (step S110: see FIG. 5).

  7 and 8 show the platform door structure 100A during step S120 (see FIG. 5). With reference to FIGS. 4, 5 and 7, the platform door structure 100A will be further described.

  As shown in FIG. 7, in step S120, the operator cuts the signal line 110 to form the cut ends CE1, CE2, CE3, and CE4. As shown in FIG. 8, the worker installs the door units 230 and 240 on a platform (not shown). Thereafter, the operator connects the additional signal line 111 to the cut end CE1 and the switch 234 of the door unit 230. The operator connects the additional signal line 112 to the cut end CE <b> 2 and the switch 234 of the door unit 230. The operator connects the additional signal line 113 to the cut end CE3 and the switch 244 of the door unit 240. The operator connects the additional signal line 114 to the cut end CE4 and the switch 244 of the door unit 240. As a result, a new closed loop circuit 600A is formed.

  Finally, the operator removes the return circuit 400A from the closed loop circuit 600A. The operator installs the door unit 250 in the closed loop circuit 600A instead of the return circuit 400A. As a result, the platform fence 500 described with reference to FIG. 4 is formed.

<Third Embodiment>
The return circuit described in relation to the first embodiment and the second embodiment may have only a function of outputting an input signal as it is. Therefore, the return circuit can have a very simple circuit structure. In the third embodiment, an exemplary circuit structure of the return circuit will be described.

  FIG. 9 is a schematic plan view of the return circuit 430 of the third embodiment. The return circuit 430 is described with reference to FIGS. 1, 6, and 9.

  The return circuit 430 can be used as the return circuit 400 described with reference to FIG. 1 or the return circuit 400A described with reference to FIG. The return circuit 430 includes a substrate 431 and a printed layer 432. The print layer 432 is formed on the substrate 431.

  The print layer 432 includes a first contact portion 433, a second contact portion 434, and a connection line portion 435. The first contact portion 433 is electrically connected to a signal line connected to the input port 410 (see FIG. 1). The second contact portion 434 is electrically connected to a signal line connected to the output port 420 (see FIG. 1). Connection line portion 435 extends between first contact portion 433 and second contact portion 434. Therefore, the signal transmitted through the signal line connected to the input port 410 is input to the first contact portion 433. Thereafter, the signal is output from the second contact portion 434 through the connection line portion 435.

<Fourth embodiment>
The return circuit described in relation to the first embodiment and the second embodiment is disposed outside the door unit. Alternatively, the return circuit may be arranged in the door unit. If the return circuit is arranged in the door unit, the return circuit is appropriately protected by the door unit. In the fourth embodiment, a platform door structure including a return circuit disposed in a door unit will be described.

  FIG. 10 is a conceptual diagram of the platform door structure 100B of the fourth embodiment. With reference to FIG.9 and FIG.10, the platform door structure 100B is demonstrated. The same code | symbol is attached | subjected with respect to the element same as 1st Embodiment. The description of the first embodiment is applied to elements having the same reference numerals.

  Similar to the first embodiment, the platform door structure 100 </ b> B includes a control panel 300. The description of the first embodiment is applied to the control panel 300.

  The platform door structure 100B further includes door units 210B, 220B, 230B, and 240B. Similar to the first embodiment, the gate space GSP is formed between the door units 210B and 220B, between the door units 220B and 230B, and between the door units 230B and 240B.

  As in the first embodiment, the door units 210B, 220B, 230B, and 240B include switches 214, 224, 234, and 244, respectively. The description of the first embodiment is incorporated in each of the switches 214, 224, 234, and 244.

  The platform door structure 100B further includes return circuits 401, 402, 403, and 404. Return circuits 401, 402, 403, and 404 are arranged in door units 210B, 220B, 230B, and 240B, respectively. Therefore, the return circuits 401, 402, 403, and 404 are appropriately protected by the door units 210B, 220B, 230B, and 240B. The return circuit 430 described with reference to FIG. 9 can be used as each of the return circuits 401, 402, 403, and 404. Therefore, the description of the third embodiment is incorporated in each of the return circuits 401, 402, 403, and 404.

  The input circuit 340 of the control panel 300, the switches 214, 224, 234, and 244 of the door units 210B, 220B, 230B, and 240B and the return circuit 404 disposed in the door unit 240B form a closed loop circuit 600B, while the door The return circuits 401, 402, and 403 of the units 210B, 220B, and 230B do not form the closed loop circuit 600B (that is, the return circuits 401, 402, and 403 are electrically separated from the closed loop circuit 600B).

  The return circuit 404 disposed in the door unit 240 </ b> B farthest from the control panel 300 includes an input port 414 and an output port 424. The input port 414 of the return circuit 404 is electrically connected to the switch 244 of the door unit 240B. The output port 424 of the return circuit 404 is electrically connected to the input circuit 340 of the control panel 300.

  When the door units 210B, 220B, and 230B appropriately close the gate space GSP, the switches 214, 224, and 234 are closed. At this time, the confirmation signals output from the control panel 300 are sequentially transmitted to the door units 210B, 220B, 230B, and 240B. If at least one of the door units 210B, 220B, 230B does not properly close the gate space GSP, the confirmation signal is not transmitted to the door unit 240B. In this case, the control panel 300 can determine that the platform door structure 100B does not properly close at least one of the three gate spaces GSP.

  When the door unit 240B appropriately closes the gate space GSP between the door units 230B and 240B, the switch 244 of the door unit 240B is closed. At this time, when the confirmation signal is transmitted from the door unit 230B to the door unit 240B, the confirmation signal is input to the input port 414 of the return circuit 404. The confirmation signal then returns to the control panel 300 through the output port 424 of the return circuit 404. As a result, the control panel 300 can confirm that all the gate spaces GSP formed by the platform door structure 100B are properly closed.

  If the door unit 240B does not properly close the gate space GSP between the door units 230B and 240B, the switch 244 of the door unit 240B remains open. Since the transmission of the confirmation signal is interrupted by the switch 244 of the door unit 240B, the confirmation signal does not return to the control panel 300. In this case, the control panel 300 can determine that the platform door structure 100B does not properly close at least one of the three gate spaces GSP.

  FIG. 11 is a schematic view of the platform fence 500B. The platform fence 500B will be described with reference to FIG.

  The platform fence 500B includes a door unit 250B. The door units 210B, 220B, 230B, 240B, 250B are structurally identical. Accordingly, the return circuit 405 is disposed in the door unit 250B, as with the door units 210B, 220B, 230B, and 240B. However, the return circuit 405 may not contribute to the formation of the closed loop circuit 600B.

  Door unit 250B includes a switch 254. In step S110 described with reference to FIG. 5, the worker places the door unit 250B next to the door unit 240B. At this time, the operator removes the signal line extending from the return circuit 404 arranged in the door unit 240B, while using the other signal lines to electrically connect the switch 244 of the door unit 240B to the switch 254 of the door unit 250B. Connect. In addition, the operator electrically connects the switch 254 of the door unit 250B to the input circuit 340 of the control panel 300 using another signal line. As a result, the closed loop circuit 600B and the platform fence 500B are completed.

  If all four gate spaces GSP are properly closed, the switches 214, 224, 234, 244, 254 are closed. In this case, the confirmation signal generated by the control board 300 can go through the closed loop circuit 600B and return to the control board 300. In this case, the control panel 300 can determine that the platform door structure 100B has properly closed all four gate spaces GSP. On the other hand, if at least one of the four gate spaces GSP is not closed, the transmission of the confirmation signal is interrupted. Since the control panel 300 does not receive the confirmation signal, the control panel 300 can determine that at least one of the four gate spaces GSP is not closed.

<Fifth Embodiment>
The control signal for controlling the door unit may be transmitted through a signal transmission path different from the closed loop circuit used for transmitting the confirmation signal. In the fifth embodiment, an exemplary signal transmission path used for transmission of a control signal will be described.

  FIG. 12 is a schematic diagram of the platform fence 500. With reference to FIG. 12, the platform fence 500 is described.

  The control panel 300 includes an output circuit 350 that outputs a control signal for controlling the door units 210, 220, 230, 240, 250. The control signal is transmitted from the output circuit 350 to the door units 210, 220, 230, 240, and 250, respectively. The transmission of the control signal may be a parallel communication method.

  As shown in FIG. 12, each of the door units 210, 220, 230, 240, 250 has a photocoupler and a ground. One of the pair of signal lines extending from the output circuit 350 connects the respective photocouplers of the door units 210, 220, 230, 240, and 250. The other of the pair of signal lines extending from the output circuit 350 connects the grounds of the door units 210, 220, 230, 240, and 250.

  When the output circuit 350 outputs a control signal requesting that the gate space GSP be closed, the driving devices (not shown) incorporated in the door units 210, 220, 230, 240, and 250 respectively respond to the control signal. Then, the closing operation for closing the gate space GSP is performed. When the output circuit 350 outputs a control signal requesting to open the gate space GSP, the driving devices incorporated in the door units 210, 220, 230, 240, and 250 open the gate space GSP according to the control signal. Open and open. The drive device that performs the closing operation and the opening operation may be a mechanism including a motor and a belt. Various structures used for known door units can be used as the driving device. The principle of this embodiment is not limited to a specific mechanism used as a driving device.

<Additional circuit>
The platform structure and platform fence may include additional communication circuits (parallel communication circuit and / or serial communication circuit) in addition to the closed loop circuit described above. A monitoring signal for monitoring the state of each door unit may be transmitted through an additional communication circuit. The principles of the various embodiments described above are not limited to the specific structure of the additional communication circuit or the specific type of signal transmitted through the additional communication circuit.

<Others>
The control signal may be transmitted to each door unit through the above-described serial communication circuit instead of the closed loop circuit. In this case, the transmission of the control signal may be based on serial communication technology. The operator may change the setting of the program that generates the control signal and specify the output destination of the control signal only for the door unit installed on the platform. The control signal may be output wirelessly or may be output wired. When the control signal transmission circuit is shared with the door unit state monitoring transmission circuit, the platform door structure and the signal transmission structure of the platform fence are greatly simplified.

  In the embodiment described above, the confirmation signal is used to confirm whether or not the gate space is completely closed. The confirmation signal may be used to confirm another state (for example, an open state) of the gate space. Additionally, the confirmation signal may be used to confirm that the platform door structure is operating normally.

  For the above-described embodiment, a confirmation signal is output when the gate space is closed. The output timing of the confirmation signal is determined so as to be suitable for the state of the gate space confirmed by the confirmation signal. If the confirmation signal is used to confirm the open state of the gate space, the confirmation signal may be output at the timing when the state of the platform door structure transitions from the closed state to the open state.

  The designer can form various platform rails according to the design principles described in connection with the various embodiments described above. Some of the various features described in connection with one of the various embodiments described above are applied to the formation of the platform fence described in connection with another embodiment. Also good.

  The principle of the above-described embodiment is suitably used for station facilities.

100, 100A, 100B, 100C ... Platform door structure 110 ... Signal line 210, 210B ... Door unit 220, 220B ... Door unit 230, 230B ... door unit 240, 240B ... door unit 250, 250B ... Door unit 300 ... Control Panel 400 ... Return circuit 400A ... ... Turn circuits 401-405 ... Return circuit 430 ...・ ・ ・ ・ Return circuit 500,500B ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Platform fence 600,600A, 600B ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・・ Closed loop circuit GSP ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Gate space

Claims (12)

A platform door structure that forms a part of a platform fence that forms a gate space that allows passengers to travel by using a plurality of door units aligned on the platform,
A first door unit installed on the platform as one of the plurality of door units;
A confirmation signal generating unit for outputting a confirmation signal for confirming an open / closed state of the gate space by the first door unit to the first door unit;
A return circuit that cooperates with the first door unit and the confirmation signal generation unit to form a closed loop circuit that defines a transmission path of a signal having the confirmation signal generation unit as a start point and an end point;
The first door unit allows the transmission of the confirmation signal to the return circuit;
The return circuit returns the confirmation signal received from the first door unit to the confirmation signal generation unit. The confirmation signal is used to confirm whether the first door unit has completely closed the gate space;
The platform door structure according to claim 1, wherein when the gate space is completely closed, the first door unit closes the closed loop circuit and allows the confirmation signal to be transmitted to the return circuit. A signal line laid between the first door unit and the return circuit;
The platform door structure according to claim 1, wherein the plurality of door units includes a second door unit that can be electrically connected to the signal line. The first door unit includes a switch that relays the confirmation signal when the first door unit completely closes the gate space,
The plurality of door units includes a second door unit that can be electrically connected to the switch;
The platform door structure according to claim 1 or 2, wherein when the second door unit is electrically connected to the switch, the return circuit is electrically connected to the second door unit. The platform door structure according to claim 1, wherein the return circuit is built in the first door unit. The first door unit includes a switch that relays the confirmation signal when the first door unit completely closes the gate space,
The return circuit includes an output port that can be electrically connected to the confirmation signal generator,
The plurality of door units includes a second door unit that can be electrically connected to the switch;
The confirmation signal is output from the switch to the second door unit in the presence of the second door unit, and is transmitted from the output port to the confirmation signal generator in the absence of the second door unit. The platform door structure according to claim 5. A method of manufacturing a platform fence that uses a plurality of door units arranged on a platform to form a gate space that allows passengers to come and go,
A step of confirming an open / closed state of the gate space each time the plurality of door units are installed, and a step of performing opening / closing control of the gate space by the door unit for which the confirmation of the open / closed state has been completed. A manufacturing method comprising a step of executing until a number of door units are installed. Checking the open / closed state of the gate space each time the plurality of door units are installed,
(I) a first door unit installed on the platform as one of the plurality of door units, and a confirmation signal for confirming the open / closed state of the gate space by the first door unit. A signal having the confirmation signal generation unit as a start point and an end point using a confirmation signal generation unit that outputs to the door unit and a return circuit that receives the confirmation signal from the first door unit and returns the confirmation signal to the confirmation signal generation unit. Forming a closed loop circuit defining a transmission path;
(Ii) adding a second door unit to the closed loop circuit as another one of the plurality of door units;
(Iii) outputting the confirmation signal to a new closed loop circuit to which the second door unit is added. The step of adding the second door unit to the closed loop circuit includes electrically connecting the second door unit to a signal line extending between the first door unit and the return circuit. The manufacturing method as described in. Adding the second door unit to the closed loop circuit;
(I) releasing an electrical connection between the first door unit and the return circuit;
(Ii) electrically connecting the second door unit to the first door unit;
The manufacturing method according to claim 7, further comprising: (iii) electrically connecting the return circuit to the second door unit. The first door unit includes a switch that relays the confirmation signal when the first door unit completely closes the gate space,
The return circuit includes an output port built in the first door unit and electrically connected to the confirmation signal generation unit,
The closed loop circuit is formed by an electrical connection between the output port and the confirmation signal generator,
The manufacturing method according to claim 7, wherein the step of adding the second door unit to the closed loop circuit includes a step of electrically connecting the switch to the second door unit while releasing the electrical connection. . A method of installing a platform fence using a plurality of door units arranged on a platform to form a gate space that allows passengers to come and go,
A step of confirming an open / closed state of the gate space each time the plurality of door units are installed, and a step of performing opening / closing control of the gate space by the door unit for which the confirmation of the open / closed state has been completed. An installation method comprising a step of executing until a number of door units are installed.

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