JP4512623B2 - Passenger conveyor safety device - Google Patents

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 the road, and travel from the lower floor to the upper floor. When the object travels 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 travels 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 (for example, see 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, although it is inevitable that emergency stop of the passenger conveyor will be unavoidable from the viewpoint of ensuring safety, when a passenger conveyor emergency stop occurs, there is a risk that other passengers who were surprised will fall over 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.

To achieve the above object, the present onset Ming, in the passenger conveyor is arranged inclined between each other floor apart vertically, and the exterior of the horizontal ceiling or adjacent passenger conveyor of the building, An external force of a certain level or more is applied to the substantially triangular protective plate fixed in the triangular space formed between the horizontal ceiling of the building or the moving handrail that runs so as to cross the exterior of the adjacent passenger conveyor. In a safety device for a passenger conveyor that detects movement of the substantially triangular protective plate and stops the passenger conveyor when working, the first triangular protective plate is attached to a horizontal ceiling portion of a building or an exterior portion of an adjacent passenger conveyor. The protection plate main body is mounted to be horizontally movable through the slide means, and the slide body is attached to the bottom side of the protection plate main body through the second slide means so as to be horizontally movable. The slide means horizontally moves the protective plate body when an external force having a first value is applied, and the second slide means horizontally moves the slide body when an external force having a value smaller than the first value is applied. The emergency broadcast switch is turned on according to the horizontal movement of the slide body, and the emergency stop switch is turned on according to the horizontal movement of the protection plate body .

In such constructed the present onset bright, substantially triangular protective plate above a certain external force is working extract, firstly, emergency broadcast switch slide member moves the first distance in the horizontal direction is turned, the passenger conveyor An emergency broadcast is made for passengers. 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. 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. Further, the emergency broadcast switch and the emergency stop switch can be reliably turned on in accordance with the movement of the substantially triangular protective plate by a predetermined distance.

Furthermore, the onset Ming, said first sliding means is fixed to the exterior portion of the horizontal ceiling or adjacent passenger conveyor of a building, the hanger to Tsuri支the protective plate body, wherein the protective plate body In addition, the suspension fitting is characterized by comprising a long hole that is slidably engaged.

In thus constituted present onset bright, after the slide member moves the first distance in the horizontal direction, further serve to continue external force is substantially triangular protective plate, Tsuri支the hanger has been protected plate body Moves a second distance in the horizontal direction through the elongated hole, and in response to this, an emergency stop switch is turned on, and the passenger conveyor is brought to an emergency stop. Thereby, smooth horizontal movement of the protective plate body can be realized with a simple structure.

Furthermore, the onset bright, the second sliding means, the protective plate is formed on the bottom side of the main body, and a protrusion protruding toward the non-vertex direction, the side facing the said protective plate body of said slide body And a concave portion in which the depth into which the convex portion is inserted changes as the slide body moves .

In the configuration was the onset bright Thus, the slide member is supported in a state where the concave portion to the convex portion formed on the bottom side of the protective plate body is inserted, a normal, opposing surfaces of the projection and recess Is held away from the opposite surface. 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 present onset Akira is characterized in that for covering the joint between the slide member and the protective plate body with blind plate.

In the configuration was the onset bright Thus, by covering the joint between the protective plate body and the slide member in blind plate, when the slide body moves in a horizontal direction, between the slide member and the protective plate body While being able to prevent an object from being pinched, it can be set as a 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. Also, the contact with the substantially triangular protective plate and the emergency broadcast can prompt the passenger who is making the object over 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 tensile force in a direction opposite to the apex of the substantially triangular protective plate 4, a cushioning material 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 concave portion 17 is formed on the facing side, and the depth of insertion of the convex portion 16 is changed with the movement of the slide body 6 . 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 opposing surface of the concave portion 17 is held in a state of being separated by the tensile 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. slide body 6 by a tensile force of 11 returns to the normal position, the escalator 1 is to continue 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 upper and lower floors, and has a horizontal ceiling part of the building or an exterior part of an adjacent passenger conveyor, and a horizontal ceiling part of the building or an exterior part of an 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 handrails that run 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,
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. The first slide means horizontally moves the protective plate body when an external force of a first value is applied, and the second slide. The means is set to horizontally move the slide body when an external force smaller than the first value is applied, and an emergency broadcast switch is turned on in accordance with the horizontal movement of the slide body and the protective plate body is moved horizontally. A safety device for a passenger conveyor, characterized in that an emergency stop switch is turned on according to the situation . 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 1, characterized in that the hanging metal fitting is composed of a slot which is slidably engaged . The second sliding means is formed on the bottom side of the protection plate main body, is formed on the side of the slide body that faces the protection plate main body, and is formed on the side of the slide body facing the protection plate main body. safety device passenger conveyor according to claim 1, wherein the the inserted depth of companion without the protrusions to move consists of a recess which varies. 4. The passenger conveyor safety device according to claim 3 , wherein the opposing surface of the convex portion and the opposing surface of the concave portion are held apart by a tensile force of a spring . 5. Safety device passenger conveyor according to claim 1, wherein the covering the joint between the slide member and the protective plate body with blind plate.

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