JP2010173744A - Boarding-alighting port floorboard structure of passenger conveyor - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a boarding-alighting port floorboard structure of a passenger conveyor for easily performing installation work, while having the function of preventing mischief of a baby existing in the vicinity of a handrail entering part. <P>SOLUTION: This boarding-alighting port floorboard structure 30 of the passenger conveyor includes a floorboard 32 arranged in the floor 15 of the boarding-alighting port 12 of the passenger conveyor 10 having a moving handrail 18, a movable plate 38 positioned under a U-turn area 18a in the boarding-alighting port 12 of the moving handrail 18 and rotatably connected to an edge in the width direction of the floorboard 32, an energizing member 42 energizing the movable plate 38 from below so as to form the same plane as the floorboard 32 when the movable plate 38 is arranged in the floor 15 of the boarding-alighting port 12 together with the floorboard 32, and a detecting switch 44 for detecting that the movable plate 38 rotates downward against an energizing force of the energizing member 42 when a load acts from above on the movable plate 38. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a passenger board entrance floor board structure, and more particularly, to a floor board structure provided with a safety function for preventing an infant or the like from entering a truss of a moving handrail in advance. It is related with the passenger board board structure of the passenger conveyor which can be installed easily in a part.

  2. Description of the Related Art Conventionally, an escalator, which is one of passenger conveyors, has moving handrails that move on the balustrades on both sides thereof in synchronization with steps that move in a stepped manner. The moving handrail enters the entrance of the handrail of the truss after reversing the moving direction so as to make a U-turn at the entrance / exit on the lower floor in the descending escalator and at the entrance / exit on the upper floor in the ascending escalator.

  An escalator in which a safety device called a hand guard switch (HGS) is provided at the entrance is known. This hand guard switch is for preventing the hand of an infant or the like from being dragged into the gap between the truss handrail entrance and the moving handrail together with the moving handrail. Covering with a gap and protruding from the end surface of the truss by, for example, a few centimeters, a rubber boot, a biasing member that biases the boot from the inside of the truss and holds it in place, and near the entrance / exit A detection switch for detecting that the hand of a child (especially an infant) hits the end face of the boot and the boot moves to the inside of the truss. When it is detected by the detection switch that the boot has moved, the operation of the escalator is emergency stopped to prevent the passenger's hand from being drawn into the handrail entrance.

  In this way, the safety at the entrance of the handrail of the escalator is secured by the hand guard switch, but once the escalator is stopped, the escalator is used until the manager of the installation facility or the escalator maintenance staff resumes the escalator operation. This is not possible and is inconvenient for ordinary passengers. Therefore, it is desired to prevent the situation where the hand guard switch is operated and the escalator is stopped in an emergency.

  For example, in Patent Document 1, two pairs of light-emitting portions and light-receiving portions are provided at two different heights on two columnar members that are erected opposite to both sides of an entrance / exit of an escalator, and the floor portion of the entrance / exit However, a safety device for a passenger conveyor is disclosed in which a safety switch portion is provided separately from the entrance / exit floor board in the vicinity of the entrance to the truss of the moving handrail.

  In this passenger conveyor safety device, it is determined that the person at the entrance is an infant or a child by a pair of light emitting section and light receiving section arranged at a low position, and the infant is placed on the safety switch section. To prevent the mischief by children in the vicinity of the handrail entrance and improve the safety of the passenger conveyor by issuing an alarm or stopping the passenger conveyor operation when it is detected by the micro switch Is described.

JP-A-6-247676

  However, in the passenger conveyor safety device of Patent Document 1, the safety switch part is provided as a separate body from the floor board of the entrance / exit, so that there is a disadvantage that installation work takes time and effort. This inconvenience is particularly pronounced when trying to add the safety device to an existing passenger conveyor.

  An object of the present invention is to provide an entrance / exit floor board structure of a passenger conveyor that can easily perform installation work while having a function of preventing mischief of a child or the like in the vicinity of a handrail entrance.

  The passenger conveyor board structure of the passenger conveyor according to the present invention is a floor board installed on a floor part of a passenger conveyor of a passenger conveyor having a moving handrail, and located below a U-turn region at the entrance of the moving handrail, A movable plate rotatably connected to an edge in a width direction of the floor plate, and the movable plate so as to be flush with the floor plate when the movable plate is installed together with the floor plate on the floor portion of the entrance / exit. A biasing member that biases from below, and a detection switch that detects that the movable plate has rotated downward against the biasing force of the biasing member due to a load acting on the movable plate from above. And. Here, “the same plane” is intended to include a state in which the upper surface of the movable plate has a slight step or an inclination with respect to the upper surface of the floor plate, in addition to a state in which the same plane is completely formed.

  According to this configuration, since the floor plate and the movable plate are rotatably connected, the floor plate and the movable plate can be installed together on the floor portion of the entrance / exit and in the vicinity of the handrail entry portion as described above. It is possible to facilitate the installation work of the safety device having the function of preventing the mischief of a child or the like in front of the child.

  In addition, when the detection switch detects that the movable plate is tilted downward due to a part of the body of a child or the like being placed on the movable plate, by prompting the user to leave the place with an alarm buzzer or voice announcement, A situation in which a child or the like activates the hand guard switch and stops the operation of the passenger conveyor can be avoided, and the convenience of the passenger conveyor is improved.

  In the passenger floor board structure of a passenger conveyor according to the present invention, the biasing member and the detection switch may be disposed on a lower surface of the movable plate.

  According to this configuration, it is possible to further facilitate the installation work of the safety device having the function of preventing the mischief of a child or the like near the handrail entrance as described above.

  Further, in the passenger conveyor board structure of the passenger conveyor according to the present invention, a handle portion protrudes from the edge portion of the floor plate, and the handle portion is arranged so that the movable plate is on the same plane as the floor plate. When installed on the floor of the mouth, it may be configured to be accommodated in a handle accommodating recess formed in the upper surface of the movable plate.

  According to this configuration, a maintenance worker who performs maintenance and inspection of the passenger conveyor pushes down the movable plate with a hand, a leg, etc., so that the handle portion escapes from the handle receiving recess of the movable plate, and the maintenance worker removes the handle portion from the handle receiving recess. You can grab it. This allows maintenance personnel to lift the floorboard by grasping the handle portion by hand without using a special tool, and to easily open and move the floorboard when descending to the machine room below the entrance. It can be carried out.

  According to the passenger floor board structure of the passenger conveyor according to the present invention, the boarding board structure having a function of preventing a child's mischief in the vicinity of the handrail entry portion can be easily formed on the floor part of the passenger conveyor's board. Can be installed.

FIG. 1 is a schematic configuration diagram showing an entrance / exit floor board structure of an escalator according to one embodiment of the present invention. FIG. 2 is a side view showing the entrance / exit of the escalator and the machine room located therebelow. FIG. 3 is a plan view of the entrance / exit of the escalator. FIG. 4 is a partial plan view showing a floor plate and a movable plate installed on the floor of the entrance / exit. FIG. 5 is a side view of the floor plate and the movable plate shown in FIG. 6 is a cross-sectional view taken along line BB in FIG. FIG. 7 is a view similar to FIG. 5 and shows a state in which the movable plate is pushed down in a downwardly inclined state. FIG. 8 is a view similar to FIG. 1 showing a modification in which the area of the movable plate is reduced.

  Embodiments according to the present invention will be described below in detail with reference to the accompanying drawings. In this description, specific shapes, materials, numerical values, directions, and the like are examples for facilitating the understanding of the present invention, and can be appropriately changed according to the application, purpose, specification, and the like.

  FIG. 1 is a view showing an entrance / exit 12 of an escalator 10 to which an entrance / exit floor board structure of a passenger conveyor (hereinafter simply referred to as “entrance / exit floor board structure”) 30 according to one embodiment of the present invention is applied. It is. FIG. 2 is a side view showing the escalator 10 of FIG. 1 and the machine room 13 positioned below the escalator 10, and FIG. 3 is a plan view showing the entrance / exit 12 of the escalator 10 as viewed from above.

  In the following description, the left and right direction is referred to as the “width direction” and the front and rear direction is referred to as the “depth direction” when viewed from the passenger facing the step 14 direction from the entrance 12. Moreover, although this embodiment demonstrates the example in which the boarding board structure according to this invention is applied to an escalator, it is not limited to this, For example, this invention may be applied to other passenger conveyors, such as a moving sidewalk. .

  The escalator 10 has a well-known configuration for transporting or moving passengers between an upper floor and a lower floor. The escalator 10 extends in a step movement direction on both sides of the step 14 and a number of steps 14 that move in a stepwise manner. A balustrade part 16 standing upright and a moving handrail 18 made of, for example, urethane rubber that moves in synchronization with the movement of step 14 while being guided on the balustrade part 16. Here, the escalator 10 is operated as a descending escalator in which the step 14 and the moving handrail 18 move in the arrow A direction.

  A speaker 17 is installed on the inner surface of the balustrade 16 near the entrance 12. The speaker 17 is used to issue a voice announcement or a warning buzzer to passengers and other people (for example, children playing in the vicinity) at the entrance 12.

  At the entrance / exit 12 on the lower floor side of the escalator 10, the moving handrail 18 has a U-turn region 18 a, and the moving handrail 18 whose moving direction is reversed in the U-turn region 18 a enters the handrail formed in the truss 20. Enter the mouth (not shown). Then, the endless moving handrail 18 moves in the truss 20 toward the upper floor side, exits the truss 20 at the entrance on the upper floor side, and then moves in the direction of movement through the U-turn area in the same manner as described above. It is reversed and moved again in the direction of arrow A.

  As shown in FIGS. 1 and 2, a boot 22 that constitutes the above-described hand guard switch is provided at a handrail entrance through which the moving handrail 18 enters the truss 20. The boot 22 has a substantially C-shaped cross section similar to the moving handrail 18 having a substantially C-shaped cross section, and covers the outside of the moving handrail 18 with a slight gap (for example, about 1 to 2 mm). For example, the truss 20 is disposed so as to protrude outward from the end face of the truss 20 by, for example, several centimeters. When it is detected that a child (especially an infant) hand or the like hits the outer end surface of the boot 22 and the boot 22 has moved to the inside of the truss 20, control such as emergency stop of the operation of the escalator 10 is performed. It has become.

  On the floor portion 15 of the entrance 12 of the escalator 10, a floor plate 32 made of a rectangular flat plate made of metal such as stainless steel is installed. The floor board 32 has a width substantially equal to the distance between the moving handrails 18 on both sides, and is placed on or fixed to a support member (not shown) provided on the truss 20. A comb plate 34 is connected to the edge of the floor plate 32 on the step 14 side. The comb plate 34 is fixed with a comb 36 that meshes with a large number of risers formed on the treads of the step 14 with some gaps therebetween.

  Here, the comb plate 34 may be connected and fixed to the floor plate 32, or may be fixed to the truss 20 separately from the floor plate 32. Further, the comb plate 34 may be integrally configured as a part of the floor plate 32.

  As shown in FIG. 2, a machine room 13 is provided below the floor plate 32, and the machine room 13 drives a control panel 11 that controls the entire escalator 10, a step 14, a moving handrail 18, and the like. A drive unit 19 and the like are disposed. A maintenance person who performs maintenance inspection, repair, etc. of the escalator 10 is configured to be able to descend into the machine room 13 from an opening formed by lifting and moving the floor plate 32.

  As shown in FIGS. 1 and 3, movable plates 38 are rotatably connected to both side edges in the width direction of the floor plate 32. The movable plate 38 is made of a metal flat plate similar to the floor plate 32, and has the same depth length as the floor plate 32. The movable plate 38 is provided below the U-turn region 18 a of the moving handrail 18 and in the vicinity of the handrail entrance of the truss 20.

  Further, the floor plate 32 and the movable plate 38 are connected to each lower surface by a hinge 40 (see FIG. 5) fixed by welding, screwing or the like, so that the movable plate 38 rotates with respect to the floor plate 32. It is configured to be possible. However, the means for rotatably connecting the movable plate 38 to the floor plate 32 is not limited to the hinge connection, and may be connected by another configuration, for example, a flexible connection member.

  4 is a plan view showing a part of the floor plate 32 and the movable plate 38, and FIG. 5 is a side view of the floor plate 32 and the movable plate 38 viewed from the direction of arrow C in FIG.

  A coil spring 42 as an urging member is fixed to the lower surface of the movable plate 38. The coil springs 42 are preferably provided at the two corners in the vicinity of the edge opposite to the connecting edge with the floor plate 32, but the number thereof may be changed as appropriate. Further, when the movable plate 38 is installed together with the floor plate 32 on the floor portion 15 of the entrance 12, the coil spring 42 is movable by the lower end portion coming into contact with the support step portion 15 a formed one step lower on the floor portion 15. The plate 38 is urged from below. As a result, the movable plate 38 is installed in substantially the same plane as the floor plate 32 and the floor portion 15. Furthermore, the spring constant of the coil spring 42 is such that the movable plate 38 is inclined downward with respect to the floor plate 32 when a load F of, for example, about 10 to 20 kg is applied from above when a child or an infant is placed on the movable plate 38. It is set to rotate to the state.

  In this embodiment, the coil spring 42 is used as a biasing member that biases the movable plate 38 from below. However, the present invention is not limited to this, and for example, a plate spring, a sponge rubber member, an air cylinder Other urging members may be used.

  A detection switch 44 is fixed on the lower surface of the movable plate 38 at a substantially central position in the depth direction. The detection switch 44 is for detecting that the movable plate 38 is rotated downwardly against the urging force of the coil spring 42 by the load F acting on the movable plate 38 from above. . The detection switch 44 is preferably a microswitch that emits an ON signal when the detection unit 44a comes into contact with and is pressed against the support step 15a of the floor 15 when the movable plate 38 rotates downward. A proximity sensor that can detect the distance to the support step portion 15a in a non-contact manner may be used.

  The detection switch 44 is electrically connected to the control panel 11 in the machine room 13. The control panel 11 is configured to execute a control to issue an alarm buzzer, an audio announcement, or the like from the speaker 17 of the balustrade section 16 when receiving an ON signal from the detection switch 44 during the normal operation of the escalator 10.

  In the present embodiment, it has been described that the lower end portion of the coil spring 42 and the detection portion 44a of the detection switch 44 are in contact with the surface of the support step portion 15a provided on the floor portion 15 of the entrance 12; Instead, it may be replaced by a support member having, for example, an L-shaped side surface fixed to the upper wall surface of the machine room 13 configured as a part of the truss 20.

  As shown in FIG. 4, a substantially U-shaped handle portion 46 is fixed to the edge of the floor plate 32 in the width direction by welding, screwing, or the like. The handle portion 46 is formed of a rod-like member having a substantially semicircular cross section that is rounded so that a maintenance worker can easily hold the floor plate 32 with a hand. On the other hand, on the upper surface of the movable plate 38, there is a handle accommodating recess 38a for accommodating the handle portion 46 when the movable plate 38 is flush with the floor plate 32 and is installed on the floor 15 of the entrance 12. Is formed. The handle accommodating recess 38a is a groove having a shape corresponding to the handle 46 for accommodating the handle 46, specifically, a groove having a substantially semicircular shape and a planar shape having a substantially U shape. Is formed.

  In the present embodiment, the shape of the handle portion 46 is substantially U-shaped so that maintenance personnel can easily hold it by hand. However, the shape of the handle portion 46 is not limited to this. One or two handle portions protruding in a straight bar shape from the edge portion may be used, and the shape of the handle housing recess may be changed accordingly. In the above description, the handle portion 46 is described as being formed of a substantially semicircular rod-shaped member. However, if the handle portion has a shape that can be easily held, the cross-sectional shape of the handle portion may be circular, elliptical, or substantially square. It may be a shape, a polygonal shape, or the like.

  Subsequently, the operation and action of the entrance / exit floor board structure 30 of the present embodiment will be described with reference to FIGS. 6 and 7 as well. 6 and 7 are enlarged sectional views taken along the line BB in FIG. 4, FIG. 6 shows a state in which the movable plate 38 is in the same plane as the floor plate 32, and FIG. 7 shows the movable plate 38 below the floor plate 32. Each of them shows a state of being rotated in an inclined state.

  As shown in FIG. 6, when the floor plate 32 and the movable plate 38 connected thereto are installed on the floor 15 of the entrance 12, the movable plate 38 is pushed up from below by the urging force of the coil spring 42. The floor plate 32 is held in the same plane. At this time, the detection portion 44a of the detection switch 44 is away from the support step portion 15a and is in a non-contact state.

  During normal operation of the escalator 10, passengers, especially children and infants who are playing or mischieving in the vicinity of the entrance 12, and other parts of the body rest on the movable plate 38. As a result, when a predetermined load F or more is applied to the movable plate 38, the movable plate 38 is rotated downwardly with respect to the floor plate 32 as shown in FIG. As a result, the detection unit 44 a of the detection switch 44 is pressed against the support step portion 15 a so that an ON signal is transmitted from the detection switch 44 to the control panel 11.

  The control panel 11 that has received the ON signal from the detection switch 44 during the normal operation of the escalator issues an alarm from the speaker 17 disposed in the balustrade section 16 near the entrance 12. This alarm may be, for example, a buzzer sound, or may be an audio announcement that prompts a child or the like who has depressed the movable plate 38 to leave the alarm quickly. When the child is surprised by this alarm and moves away from the movable plate 38, the movable plate 38 returns to the original position by the biasing force of the coil spring 42, and the detection switch 44 is turned off by moving away from the support step 15a. As a result, it is possible to prevent in advance a situation in which a child who has played or mischieved in the vicinity of the entrance / exit 12 operates the hand guard switch to cause the escalator 10 to stop emergency.

  As described above, according to the entrance / exit floor plate structure 30 of the present embodiment, the movable plate 38 having the coil spring 42 and the detection switch 44 attached to the lower surface and the floor plate 32 are rotatably connected by the hinge 40. In addition, the floor plate 32 and the movable plate 38 can be installed together on the floor portion 15 of the entrance 12 and a safety device having a function of preventing a child or the like in the vicinity of the handrail entry portion of the truss 20 can be prevented. Work can be made easy.

  Further, when the detection switch 44 detects that the movable plate 38 is inclined downward because a part of the body of a child or the like is placed on the movable plate 38, the alarm buzzer or voice announcement issued from the speaker 17 By urging the user to leave the escalator 10, it is possible to reduce the frequency of occurrence of a situation in which a child or the like operates the hand guard switch and stops the escalator 10, and the convenience of the escalator 10 is improved.

  On the other hand, when a maintenance worker performs work such as maintenance inspection and repair of the escalator 10, first, the maintenance worker operates the operation changeover switch provided on the outer surface of the truss 20 with a dedicated key, so that the escalator 10 is operated in the normal operation mode. To maintenance mode. As a result, the control panel 11 disables the detection switch 44 provided on the movable plate 38 or executes a control that does not give a warning even when an ON signal is received from the detection switch 44.

  Then, the maintenance staff must open the floor plate 32 in order to descend into the machine room 13, but a special tool such as a T-shaped tool having a threaded portion at the tip has been prepared so far. Is screwed into a screw hole formed on the upper surface of the floor plate 32 and then the tool is lifted to move the floor plate 32.

  On the other hand, in the entrance / exit floor board structure 30 of this embodiment, when a maintenance person pushes down the movable board 38 with a foot etc., as shown in FIG. 7, the handle part 46 will escape from the handle accommodating recessed part 38a of the movable board 38, as shown in FIG. Thus, the maintenance staff can hold it by hand. In this state, the maintenance staff can hold the handle portion 46 and lift and move the floor plate 32 together with the movable plate 38.

  As described above, according to the entrance / exit floor board structure 30 of the present embodiment, the maintenance staff can lift the floor board 32 by grasping the handle portion 46 by hand without using a special tool, and is located below the entrance / exit 12. The work of opening and moving the floor plate 32 when getting down to the machine room 13 can be easily performed.

  In addition, since mischief may be induced if the handle | steering-wheel part 46 becomes visible, it is preferable to stick a flexible blindfold seal on the movable board 38, and to hide the handle | steering-wheel part 46. FIG.

10 escalator, 11 control panel, 12 boarding gate, 13 machine room, 14 steps, 15 floor, 16 balustrade, 17 speaker, 18 moving handrail, 18a U-turn area, 19 drive unit, 20 truss, 22 boot, 30 boarding Mouth floor plate structure, 32 floor plate, 34 comb plate, 36 comb, 38 movable plate, 38a handle receiving recess, 40 hinge, 44 detection switch,
44a Detection part, 46 Handle part.

Claims (3)

A floorboard installed on the floor of a passenger conveyor entrance and exit having a moving handrail;
A movable plate that is positioned below the U-turn region at the entrance of the moving handrail and is rotatably connected to an edge in the width direction of the floor plate;
An urging member that urges the movable plate from below so as to be flush with the floor plate when the movable plate is installed on the floor portion of the entrance / exit with the floor plate;
A detection switch for detecting that the movable plate is rotated downward against the urging force of the urging member when a load is applied to the movable plate from above; Construction. In the passenger board floor board structure of the passenger conveyor according to claim 1,
The urging member and the detection switch are disposed on a lower surface of the movable plate, and a passenger floor board structure for a passenger conveyor. In the passenger board floor board structure of the passenger conveyor according to claim 1 or 2,
A handle portion protrudes from the edge portion of the floor plate, and the handle portion is configured such that when the movable plate is installed on the floor portion of the entrance / exit in the same plane as the floor plate, An entrance / exit floor board structure for a passenger conveyor, which is configured to be accommodated in a handle accommodating recess formed on an upper surface.

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