JP2009051662A - Safety device of passenger conveyer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a safety device of a passenger conveyor capable of preventing even secondary disaster by emergency stopping of the passenger conveyor. <P>SOLUTION: This passenger conveyor 1 is slantingly arranged between the mutual vertically separate story floors, and has an emergency broadcasting switch 7 fixed to a triangular space formed between a horizontal ceiling part of a building or a covering part of an adjacent passenger conveyor and a moving handrail 3 traveling so as to cross with the horizontal ceiling part of the building or the covering part of the adjacent passenger conveyor and input in response to the movement of a substantially triangular protective plate 4 by a first distance in the horizontal direction by external force, and can reduce risk of overturning in the emergency stopping by enabling a passenger to stand ready by recognizing abnormality by broadcasting an emergency before the emergency stopping of the passenger conveyor. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a passenger conveyor that prevents an object from being caught in a triangular space formed between a horizontal ceiling portion of a building or an exterior portion of an adjacent passenger conveyor and a moving handrail that runs so as to intersect. Related to safety devices.

  Passengers get into the passenger conveyor that has a triangular space formed between the horizontal ceiling of the building or the exterior of the adjacent passenger conveyor and the moving handrail that crosses, and travel from the lower floor to the upper floor. When the object moves over the moving handrail and protrudes outside the balustrade, the horizontal handrail of the building or the exterior part of the adjacent passenger conveyor and the moving handrail that runs so as to intersect It is sandwiched between triangular spaces formed between them, causing damage such as object breakage or passenger conveyor damage.

For this reason, conventionally, a substantially triangular protective plate is movably mounted in a triangular space formed between a horizontal ceiling portion of a building or an exterior portion of an adjacent passenger conveyor and a moving handrail that runs so as to intersect. In addition, when a detection switch is installed at a position that is a certain distance away from the approximately triangular protective plate, when an external force of a certain level or more is applied to the approximate triangular protective plate, and when the approximate triangular protective plate is moved by a certain amount or more in the direction of the external force A detection switch is turned on to detect a dangerous state occurring on a passenger conveyor (see, for example, Patent Document 1).
JP 2006-327788 A (paragraph number 0015 to paragraph number 0021, FIG. 4)

  In the above-described conventional one, a certain amount of external force is applied to the substantially triangular protective plate, and the detection switch is turned on when, for example, the triangular protective plate is moved by a certain amount or more in the direction in which the external force is applied. Is. However, from the viewpoint of ensuring safety, it is inevitable that the passenger conveyor will be stopped urgently. However, when the passenger conveyor stops urgently, there was a risk that other passengers who were surprised would fall and develop into a secondary disaster. It was.

  The present invention has been made in view of the actual situation in the prior art described above, and an object thereof is to provide a safety device for a passenger conveyor that can prevent a secondary disaster caused by an emergency stop of the passenger conveyor.

  In order to achieve the above-mentioned object, the invention according to claim 1 of the present invention is a passenger conveyor that is inclined between upper and lower floors, and has a horizontal ceiling portion of a building or an adjacent passenger. A substantially triangular protective plate fixed in a triangular space formed between the exterior of the conveyor and the horizontal handrail of the building or the moving handrail that crosses the exterior of the adjacent passenger conveyor In the passenger conveyor safety device that detects the movement of the substantially triangular protective plate and stops the passenger conveyor when an external force exceeding a certain level is applied, the substantially triangular protective plate has moved a first distance in the horizontal direction by the external force. An emergency broadcast switch that is turned on according to circumstances, and an emergency stop switch that is turned on when the substantially triangular protective plate is moved by the external force in the horizontal direction over a second distance that exceeds the first distance. It is characterized in that.

  In the invention according to claim 1 of the present invention configured as described above, when an external force of a certain level or more acts on the substantially triangular protective plate, and the substantially triangular protective plate moves the first distance in the horizontal direction, the emergency broadcast switch is turned on, Emergency broadcasts are made to passengers on passenger conveyors. After this, an external force continues to act on the substantially triangular protective plate, and when the substantially triangular protective plate moves the second distance in the horizontal direction, the emergency stop switch is turned on, and the passenger conveyor stops emergency. In this way, since emergency broadcasts are made to passengers on the passenger conveyor prior to the emergency stop of the passenger conveyor, the passenger can recognize and prepare for an abnormality, so the passenger conveyor The risk of falling when an emergency stop is made can be reduced. In addition, the contact with the substantially triangular protective plate and the emergency broadcast can prompt the passenger who has placed the object over the moving handrail to recognize the danger quickly and reliably.

  In the invention according to claim 2 of the present invention, the substantially triangular protective plate is attached to the horizontal ceiling portion of the building or the exterior portion of the adjacent passenger conveyor so as to be horizontally movable via the first sliding means. The main body and a slide body which is attached to the bottom side of the protective plate main body through a second slide means so as to be horizontally movable are divided, and the emergency broadcast switch is turned on according to the horizontal movement of the slide body. The emergency stop switch is turned on in accordance with the horizontal movement of the protective plate body.

  In the invention according to claim 2 of the present invention configured as described above, when an external force exceeding a certain level acts on the substantially triangular protective plate, first, the slide body moves the first distance in the horizontal direction and the emergency broadcast switch is turned on. Emergency broadcasts are made to passengers on the passenger conveyor. After this, when an external force continues to act on the substantially triangular protective plate, the protective plate body moves the second distance in the horizontal direction, the emergency stop switch is turned on, and the passenger conveyor stops emergency. Accordingly, the emergency broadcast switch and the emergency stop switch can be reliably turned on according to the movement of the substantially triangular protective plate by a predetermined distance.

  Furthermore, the invention according to claim 3 of the present invention is characterized in that the first slide means is fixed to a horizontal ceiling part of a building or an exterior part of an adjacent passenger conveyor and supports the protection plate main body. And an elongated hole that is slidably engaged with the suspension fitting.

  In the invention according to claim 3 of the present invention configured as described above, when the external force continues to act on the substantially triangular protective plate after the slide body has moved the first distance in the horizontal direction, The protective plate body thus moved moves the second distance in the horizontal direction through the long hole, and the emergency stop switch is turned on accordingly, and the passenger conveyor stops emergency. Thereby, smooth horizontal movement of the protective plate body can be realized with a simple structure.

  Furthermore, the invention according to claim 4 of the present invention is characterized in that the second slide means is formed on the bottom side of the protection plate main body and protrudes toward the opposite vertex direction, and the slide body It is characterized in that it is formed on the side facing the protective plate main body, and the convex part is composed of a concave part that is movably inserted.

  In the invention according to claim 4 of the present invention configured as described above, the slide body is supported in a state in which the concave portion is inserted into the convex portion formed on the bottom side of the protective plate body, and the convex portion is normally provided. The opposing surface and the opposing surface of the recess are held apart. When an external force of a certain level or more is applied to the slide body, the slide body moves the first distance in the horizontal direction while the slide contact surface of the convex portion and the slide contact surface of the concave portion of the second slide means are in sliding contact. The emergency broadcast switch is turned on and an emergency broadcast is performed for passengers on the passenger conveyor. Thereafter, when the opposing surface of the convex part and the opposing surface of the concave part come into contact with each other, the movement of the slide body in the horizontal direction stops, and the external force acting on the substantially triangular protective plate moves the protective plate body in the horizontal direction. . Accordingly, a smooth horizontal movement of the slide body can be realized with a simple structure, and the transition from the movement of the slide body to the movement of the protection plate body can be performed reliably.

  The invention according to claim 5 of the present invention is characterized in that a joint between the protection plate main body and the slide body is covered with a blindfold plate.

  In the invention according to claim 5 of the present invention configured as described above, when the slide body moves in the horizontal direction by covering the joint portion between the protection plate main body and the slide body with a blindfold plate, the slide body and the protection plate An object can be prevented from being sandwiched between the main body and the substantially triangular protective plate excellent in design.

  According to the present invention, since an emergency broadcast is performed to passengers on the passenger conveyor prior to the emergency stop of the passenger conveyor, the passenger can recognize and prepare for an abnormality, and thus the passenger It is possible to reduce the risk of falling when the conveyor stops in an emergency, and to improve safety. In addition, the contact with the substantially triangular protective plate and the emergency broadcast can prompt the passenger who is moving the object beyond the moving handrail to recognize the danger promptly and reliably. An emergency stop can be avoided as much as possible to prevent a decrease in operating efficiency, and a secondary disaster accompanying an emergency stop can be prevented.

  DESCRIPTION OF EMBODIMENTS Hereinafter, embodiments of a passenger conveyor safety device according to the present invention will be described with reference to the drawings.

  1 is a side view showing an embodiment of a passenger conveyor safety device according to the present invention, FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1, and FIG. 3 is a cross-sectional view taken along the line BB in FIG. 4 is a sectional view taken along the line CC of FIG. 1, and FIG. 5 is a schematic configuration diagram of a passenger conveyor to which the present invention is applied.

  As shown in FIG. 5, the passenger conveyor is composed of, for example, an escalator 1 that is inclined between upper and lower floors, and is arranged with respect to the exterior portion of the escalator 1 and the horizontal ceiling portion 2 of the building. A substantially triangular protective plate 4 is attached as one of the safety devices in a triangular space formed between the moving handrail 3 traveling so as to intersect.

  As shown in FIGS. 1 to 4, the substantially triangular protective plate 4 includes a protective plate body 5 that is attached to the horizontal ceiling portion 2 of the building through the first slide means so as to be horizontally movable, and a bottom side of the protective plate body 5. A slide body 6 attached to the side through a second slide means so as to be horizontally movable, an emergency broadcast switch 7 that is turned on in response to the slide body 6 having moved a first distance in the horizontal direction by an external force, An emergency stop switch 8 that is turned on in response to the movement of the protective plate main body 5 by a second distance that exceeds the first distance in the horizontal direction by an external force, and the slide body 6 are provided. Accordingly, the slide body switch abutting portion 9 that abuts on the emergency broadcast switch 7 and puts in the emergency broadcast switch 7 and the horizontal ceiling portion 2 side of the building, for example, a hanging bracket 14 described later, move the protection plate body 5. According to non A protection plate main body switch contact portion 10 that contacts the stop switch 8 to turn on the emergency stop switch 8, and one end is fixed to the slide body 6 side and the other end is fixed to the protection plate main body 5 side. 6, a spring 11 that applies a pressing force in the direction opposite to the apex of the triangular protective plate 4, a shock absorber 12 that is attached to the anti-protective plate body 5 side of the slide body 6, and the protective plate body 5 and the slide body 6. A blindfold 13 that covers the joint is provided.

  The first sliding means described above is fixed to the horizontal ceiling portion 2 of the building, and is formed on the suspension fitting 14 that supports the protection plate body 5 and the protection plate body 5, and the suspension fitting 14 slides. It consists of an elongated hole 15 that can be engaged. Further, the second sliding means described above is formed on the bottom side of the protection plate main body 5, and protrudes toward the anti-vertical direction of the substantially triangular protection plate 4, and the protection plate main body 5 of the slide body 6. The convex part 16 is formed on the facing side, and includes a concave part 17 into which the convex part 16 is movably inserted. The first slide means horizontally moves the protection plate body 5 when an external force of the first value is applied, and the second slide means has a second value of external force that is smaller than the first value. It is set so that the slide body 6 is moved horizontally when acted on. Thus, when the object comes into contact with the substantially triangular protective plate 4, the slide body 6 first moves horizontally, and then the protective plate body 5 moves horizontally.

  Further, as shown in FIG. 5, the emergency broadcast switch 7 is connected to an emergency broadcast circuit 20 installed in the machine room 19 via a control cable 18, and the emergency broadcast circuit 20 connects an emergency broadcast speaker cable 21. For example, it is connected to an emergency buzzer / emergency broadcast speaker 22 provided on the horizontal ceiling 2 of the building. The emergency stop switch 8 is connected to an operation control unit 24 installed in the machine room 19 via a control cable 23, and the operation control unit 24 is connected to the outside, for example, the management room 26 via an automatic notification cable 25. It is connected.

  In the present embodiment, the slide body 6 is supported in a state where the concave portion 17 is inserted into the convex portion 16 formed on the bottom side of the protective plate body 5. As shown in FIG. 2, the concavity 17 is held away from the opposing surface by the pressing force of the spring 11. When a passenger who is using the escalator 1 traveling from the lower floor to the upper floor moves, for example, over the moving handrail 3 and leans on the body, and collides with the slide body 6 of the substantially triangular protective plate 4, the slide body 6, an external force of a certain level or more acts, and the slide body 6 moves a first distance in the horizontal direction while the slide contact surface of the convex portion 16 of the second slide means and the slide contact surface of the concave portion 17 are in sliding contact with each other. The emergency broadcast switch 7 is turned on when the body switch contact portion 9 contacts the emergency broadcast switch 7. In response to this, the output signal is sent to the emergency broadcast circuit 20 installed in the machine room 19 via the control cable 18, and the emergency broadcast circuit unit 20 outputs the emergency broadcast signal via the emergency broadcast speaker cable 21. After the alarm buzzer is sounded by the emergency buzzer / emergency broadcast speaker 22, emergency broadcast is performed. At this time, if the passenger who has climbed over the handrail 3 due to the alarm buzzer and the emergency broadcast notices the danger, the posture changes and the normal use is made, and the external force working on the slide body 6 disappears. 11, the slide body 6 returns to the normal position, and the escalator 1 continues normal operation.

  On the other hand, if the external force continues to act on the substantially triangular protective plate 4 despite the alarm buzzer sounding and the emergency broadcast, the opposing surface of the convex portion 16 and the opposing surface of the concave portion 17 of the second slide means The movement of the slide body 6 in the horizontal direction is stopped upon contact, and the external force acting on the substantially triangular protective plate 4 moves the protective plate body 5 in the horizontal direction. That is, the protection plate main body 5 that is supported by the hanging metal fitting 14 moves a second distance in the horizontal direction through the elongated hole 15, and the protection plate main body switch contact portion 10 contacts the emergency stop switch 8. The emergency stop switch 8 is turned on. In response to this, an output signal is sent to the operation control unit 24 installed in the machine room 19 via the control cable 23, and the operation control unit 24 makes the emergency stop of the escalator 1, and the management room 26 via the automatic notification cable 25. To output a notification signal to notify the emergency stop of the escalator 1. The manager who has received the report urgently visits the site where the abnormality occurred, and after confirming the situation, promptly recovers from the escalator emergency stop state.

  According to the present embodiment, prior to the emergency stop of the escalator 1, the alarm buzzer sounds and the emergency broadcast is performed for the passenger of the escalator, so that the passenger can recognize and prepare for an abnormality. Therefore, it is possible to reduce the risk of falling when the passenger conveyor is stopped in an emergency, and to improve safety. Further, the contact with the substantially triangular protection plate 4 and the emergency broadcast can prompt the passenger who has placed the object over the moving handrail 3 to recognize the danger promptly and reliably, whereby the escalator It is possible to avoid 1 emergency stop as much as possible to prevent a decrease in operating efficiency and to prevent a secondary disaster accompanying an emergency stop.

  Further, the first slide means is constituted by the hanging metal fitting 14 for supporting the protection plate main body 5 and the elongated hole 15 formed in the protection plate main body 5, so that the horizontal movement of the protection plate main body 5 can be performed smoothly with a simple structure. Can be realized. Furthermore, by forming the second slide means from the convex portion 16 and the concave portion 17 into which the convex portion 16 is movably inserted, a smooth horizontal movement of the slide body 6 can be realized with a simple structure, and the slide Transition from the movement of the body 6 to the movement of the protection plate main body 5 can be performed reliably.

  In addition, by covering the joint between the protection plate body 5 and the slide body 6 with the blindfold plate 13, an object is sandwiched between the slide body 6 and the protection plate body 5 when the slide body 6 moves in the horizontal direction. It can be set as the substantially triangular protective plate 4 excellent in design property. Further, by attaching the cushioning material 12 to the anti-protection plate main body 5 side of the slide body 6, for example, the impact when the passenger collides with the slide body 6 can be reduced. Furthermore, by disposing the emergency broadcast switch 7 and the emergency stop switch 8 on the protection plate body 5, it is not necessary to provide these switches on the building side, and therefore the installation work of the safety device can be facilitated. it can.

It is a side view which shows one Embodiment of the safety apparatus of the passenger conveyor which concerns on this invention. It is sectional drawing which follows the AA line of FIG. It is sectional drawing which follows the BB line of FIG. It is sectional drawing which follows the CC line of FIG. It is a schematic block diagram of the passenger conveyor to which this invention is applied.

Explanation of symbols

1 Escalator (passenger conveyor)
2 Horizontal ceiling part 3 Moving handrail 4 Substantially triangular protective plate 5 Protection plate body 6 Slide body 7 Emergency broadcast switch 8 Emergency stop switch 9 Slide body switch contact portion 10 Protection plate body switch contact portion 11 Spring 12 Buffer material 13 Blindfold Plate 14 Suspension bracket (first slide means)
15 Long hole (first slide means)
16 Convex part (second sliding means)
17 Concave portion (second slide means)
DESCRIPTION OF SYMBOLS 18 Control cable 19 Machine room 20 Emergency broadcast circuit 21 Emergency broadcast speaker cable 22 Emergency buzzer / emergency broadcast speaker 23 Control cable 24 Operation control unit 25 Automatic notification cable 26 Control room

Claims (5)

It is a passenger conveyor that is inclined between two floors that are separated from each other in the vertical direction, and the horizontal ceiling part of the building or the exterior part of the adjacent passenger conveyor, and the horizontal ceiling part of the building or the exterior part of the adjacent passenger conveyor When a certain amount of external force is applied to a substantially triangular protective plate fixed in a triangular space formed between the moving handrail that runs so as to intersect, the movement of the substantially triangular protective plate is detected. In the passenger conveyor safety device that stops the passenger conveyor,
An emergency broadcast switch that is turned on when the substantially triangular protective plate is moved in the horizontal direction by an external force, and a second that the substantially triangular protective plate exceeds the first distance in the horizontal direction by an external force. A safety device for a passenger conveyor, comprising an emergency stop switch that is turned on in response to the movement of the distance.   A protective plate body that is mounted on the horizontal ceiling portion of the building or the exterior portion of the adjacent passenger conveyor so as to be horizontally movable via the first sliding means, and a second on the bottom side of the protective plate main body. And a slide body that is mounted so as to be horizontally movable via the slide means, and the emergency broadcast switch is turned on according to the horizontal movement of the slide body and the emergency stop according to the horizontal movement of the protective plate body 2. The passenger conveyor safety device according to claim 1, wherein a switch is turned on.   The first slide means is fixed to a horizontal ceiling part of a building or an exterior part of an adjacent passenger conveyor, and is formed on a hanging metal fitting for supporting the protection plate body, the protection plate body, The safety device for a passenger conveyor according to claim 2, wherein the suspension fitting is formed of a long hole that is slidably engaged.   The second slide means is formed on the bottom side of the protection plate main body, and is formed on the side of the slide body that faces the protection plate main body, and a convex portion that protrudes in the opposite apex direction. 3. The passenger conveyor safety device according to claim 2, wherein the safety device comprises a recess inserted movably.   The safety device for a passenger conveyor according to claim 2, wherein a joint portion between the protection plate main body and the slide body is covered with a blindfold plate.

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