Automatic Deployment Device for Passenger Conveyor Entrance Prohibiting Partition

Abstract

This entry-prohibition partition automatic deployment device (30) includes: extendable gripping parts (32), which are disposed so as to span a width direction on the lower side of two moving handrails (24), the length of which in the width direction can be lengthened or contracted, and which have a pressing part that grips both ends of the moving handrails in the width direction when contracted; a connecting body, which is connected to each extendable gripping part, and extends between both balustrades in the width direction; a partition member suspended from the connecting body; and a control device (60) for controlling the operation of the extendable gripping parts. When the moving handrails decelerate and stop due to the occurrence of an abnormality, the control device causes the extendable gripping parts to grip and sandwich therebetween the moving handrails and deploys the partition member toward the upper side at an entrance by a movement prior to the stopping of the moving handrails.

Description

Technical Field

[0001] The present invention relates to an automatic deployment device for an access prohibition partition of a passenger conveyor, and particularly relates to being able to automatically install an access prohibition partition at the entrance of a passenger conveyor when an abnormality occurs, and not requiring the drive of a large power source when installing the access prohibition partition.

Background Art

[0002] Conventionally, in passenger conveyors that move passengers such as escalators and moving walkways, when an abnormality such as a fire occurs, the circulating movement of steps, which are a plurality of tread members of the passenger conveyor, is decelerated and stopped. At this time, if passengers enter the passenger conveyor from the entrance, there is a risk of secondary disasters due to passengers falling, etc. For this reason, an operator of an operator who operates a passenger conveyor may install an access prohibition partition such as a fence for prohibiting passengers from entering at the entrance of the passenger conveyor. On the other hand, it may be difficult for the operator to quickly install the access prohibition partition when an abnormality occurs. Therefore, it is desired to realize a configuration that can automatically install an access prohibition partition at the entrance without requiring the labor of the operator when an abnormality occurs.

[0003] Patent Document 1 describes a configuration including a fence body (access prohibition partition) that is installed on the entrance side of an escalator and can enter and exit a lower machine room, a guide for guiding the vertical movement of the fence body, a rack and pinion device for vertically moving the fence body, a motor that is a power source for driving the rack and pinion device, and a control device for controlling the motor. The control device drives the motor to project the fence body upward by a signal output when a seismic sensor senses an earthquake, thereby preventing passengers from boarding the escalator.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, in the configuration described in Patent Document 1, in order to move the access prohibition partition, it is necessary to continuously drive the rack and pinion device with a large-sized motor that generates a large amount of power until the access prohibition partition fully ascends.

[0006] An object of the present invention is to realize a configuration in a passenger conveyor that can automatically install an access prohibition partition at the entrance without requiring the labor of workers in the event of an abnormality, and does not require the drive of a large power source when installing the access prohibition partition.

Means for Solving the Problems

[0007] The automatic access prohibition partition deployment device for a passenger conveyor according to the present invention is an automatic access prohibition partition deployment device for a passenger conveyor having a moving handrail movably supported by balustrades erected at both ends in the width direction, for prohibiting passengers from entering from the entrance on the boarding side. The device includes a telescopic gripping portion arranged to straddle in the width direction below the two moving handrails and having a pressing portion that grips both ends in the width direction of the moving handrail when contracted, a connecting body connected to each telescopic gripping portion and extending in the width direction between the two balustrades, a partition member suspended from the connecting body, and a control device for controlling the operation of the telescopic gripping portion. When the moving handrail decelerates and stops due to an abnormality, each of the telescopic gripping portions grips the moving handrail with the moving handrail in between, and the movement of the moving handrail before stopping causes the partition member to be deployed upward at the entrance.

[0008] According to the access prohibition partition automatic deployment device for a passenger conveyor according to the present invention, when the moving handrail decelerates in the event of an abnormality, the control device grasps the moving handrail with the pressing portions at the lower sides of both moving handrails, and causes the partition member, which is the access prohibition partition, to be deployed upward at the entrance of the passenger conveyor by the movement of the moving handrail before it stops. Therefore, an access prohibition partition can be automatically installed at the entrance without the need for labor by workers in the event of an abnormality. In addition, since the force required to raise the partition member against gravity can utilize the force of the moving handrail before it stops, unlike the configuration of Patent Document 1 where a large power is required to generate the power for raising the fence member with a rack and pinion device using a motor, a large power source is not required when installing the partition member.

[0009] Further, in the access prohibition partition automatic deployment device for a passenger conveyor according to the present invention, the other ends of the both pressing portions of the telescopic grasping portion are constantly biased in the contracting direction by a telescopic spring, an interfering member is sandwiched between the other ends, and the both pressing portions are held at an extended position away from the moving handrail. Furthermore, it may include a removal driving portion for removing the interfering member from between the other ends, and the control device controls the removal driving portion to remove the interfering member when the moving handrail decelerates and stops due to an abnormality, so that the pressing portion grasps the moving handrail.

[0010] According to the above configuration, when the moving handrail decelerates in the event of an abnormality, the removal driving portion can grasp the moving handrail with each telescopic grasping portion by removing the interfering member from between the other ends of the pressing portions of the telescopic grasping portion. Therefore, unlike a structure in which a power source such as a linear actuator is provided so that one pressing member is combined with the other pressing member so as to be relatively displaceable and the pressing portion of the other pressing member approaches the pressing portion of the one pressing member, the moving body moved by the removal driving portion, which is the power source, can be small. Therefore, the power source can be made smaller.

[0011] In the automatic deployment device for the access prohibition partition of the passenger conveyor according to the present invention, when the moving handrail starts to decelerate due to an abnormality, the control device controls the timing of the telescopic gripping portions to grip the moving handrail so that each of the telescopic gripping portions moves to a predetermined position lower than the upper end of the entrance side end of the moving handrail and stops.

[0012] According to the above configuration, by controlling the timing of gripping the moving handrail with the telescopic gripping portions, the partition member can be accurately raised and deployed to an appropriate position without being excessively pulled up.

[0013] In the automatic deployment device for the access prohibition partition of the passenger conveyor according to the present invention, the partition member is normally suspended from the connecting body and accommodated in the lower accommodating portion through an opening formed in the floor surface of the entrance, and the opening may be closed by a rotatable opening / closing lid portion.

[0014] According to the above configuration, it is possible to prevent the partition member from disturbing passengers during normal times, and since the opening formed in the floor surface for accommodating the partition member is closed by the opening / closing lid portion during normal times, passengers are less likely to feel uncomfortable. Also, when an abnormality occurs, the opening / closing lid portion can be pushed open by the connecting body pulled upward by the rising telescopic gripping portions that have gripped the moving handrail, and the partition member can be deployed upward.

Effect of the Invention

[0015] According to the automatic deployment device for the access prohibition partition of the passenger conveyor according to the present invention, in the passenger conveyor, when an abnormality occurs, an access prohibition partition can be automatically installed at the entrance without the need for the labor of workers, and a configuration that does not require the drive of a large power source when installing the access prohibition partition can be realized.

Brief Description of the Drawings

[0016]

Figure 1

Figure 2

Figure 3

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Figure 9

Figure 10

Mode for Carrying Out the Invention

[0017] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The shapes, materials, numbers, etc. described below are examples for explanation and can be changed according to the specifications of the passenger conveyor on which the access prohibition partition automatic deployment device is installed. Hereinafter, the case where the passenger conveyor is an escalator will be described, but the present invention is also applicable when the passenger conveyor is a moving walkway in which a plurality of tread surfaces of steps move continuously without a step under the feet of the passengers. Further, hereinafter, the case where the entrance on the boarding side of the escalator is on the upper floor and the exit on the alighting side is on the lower floor will be described, but the present invention is also applicable when the entrance is on the lower floor and the exit is on the upper floor.

[0018] The basic structure of the escalator 10 will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing the vicinity of the entrance of the escalator 10 under normal conditions. FIG. 2 is a perspective view showing the vicinity of the entrance where the partition member 54 is deployed when an abnormality occurs in the escalator 10.

[0019] The escalator 10 includes a truss 12 and two handrails 16 erected at both ends in the width direction on the upper side of the truss 12 via a deck board portion 14. Here, the "width direction" means the left - right direction in FIGS. 1 and 2 when the escalator 10 is viewed from the upper - floor landing 18 in the traveling direction. The truss 12 is a frame provided so as to span between the upper - floor floor surface 20 and the lower - floor floor surface of the building. A moving part of the escalator 10 and an escalator drive device (not shown) are arranged on the truss 12.

[0020] The moving part of the escalator 10 includes a plurality of steps 22 on which passengers ride and a moving handrail 24 movably supported on the outer peripheral portion of each handrail 16. The plurality of steps 22 are connected by two endless chains (not shown) provided on both sides in the width direction and are movable in a circulating manner in one direction.

[0021] The escalator drive device includes a motor and a power transmission part that transmits the power of the motor to the chain, and is provided inside the truss 12. Thereby, when the motor is driven, the plurality of steps 22 move in a circulating manner in one direction. The motor is controlled by a control device 60 described later.

[0022] The moving handrail 24 is movably supported on the outer periphery of a handrail guide 17 provided on the outer peripheral portion of the railing 16. The moving handrail 24 is formed in an endless shape and is capable of circulating and moving in one direction. The moving handrail 24 includes an upward range that a passenger can grasp and a forward path side portion 25 that is a portion moving from the upper floor to the lower floor, and a downward range and a return path side portion 26 that is a portion moving from the lower floor to the upper floor. Most of the return path side portion 26 is disposed inside the deck board portion 14 and is sandwiched between a drive roller and a pressing roller. Power is transmitted to the drive roller from a motor of an escalator drive device via a handrail drive mechanism. Thereby, the moving handrail 24 circulates and moves in one direction (the direction of arrow α in FIG. 1) in synchronization with the plurality of steps 22.

[0023] In such an escalator 10, during normal times, the plurality of steps 22 and the moving handrail 24 each move at a constant speed. On the other hand, when an abnormality occurs, that is, when the control device 60 receives an abnormality signal indicating the occurrence of an abnormality from the earthquake detector 62 or the fire detector 64, the control device 60 decelerates and stops the plurality of steps 22 and each moving handrail 24. For example, when receiving the abnormality signal, the control device 60 stops the power supply to the motor of the escalator drive device, brakes the motor with an electromagnetic brake at a slow deceleration, or slowly decelerates the motor at a constant deceleration by the control of the inverter and then stops it. Thereby, the plurality of steps 22 and each moving handrail 24 decelerate slowly and then stop. Since the plurality of steps 22 and each moving handrail 24 do not brake suddenly, the fall of passengers on the steps 22 is suppressed.

[0024] When the escalator 10 is stopped due to an abnormality in this way, it is necessary to prohibit the entry of passengers from the entrance of the escalator 10. For this purpose, in the embodiment, an entry prohibition partition automatic deployment device 30 is deployed at the entrance of the escalator 10. Hereinafter, the entry prohibition partition automatic deployment device 30 will be described in detail.

[0025] FIG. 3 is a schematic view of the vicinity of the entrance of the escalator 10 as seen from one side in the width direction in the normal state. FIG. 4 is a sectional view taken along line A-A of FIG. 3. FIG. 5 is a schematic view of the vicinity of the entrance of the escalator 10 as seen from one side in the width direction when an abnormality occurs. FIG. 6 is a sectional view taken along line B-B of FIG. 5.

[0026] As shown in FIGS. 3 and 4, the entrance prohibition partition automatic deployment device 30 includes telescopic gripping portions 32 provided one each on both sides in the width direction, a connecting body 50, a partition member 54, and a control device 60 (FIG. 1). The two telescopic gripping portions 32 are arranged so as to straddle in the width direction (the front-back direction in FIG. 3, the left-right direction in FIG. 4) below each of the portions immediately after being led out from the deck board portion 14 of the return side portions 26 of the two handrails 24 at the entrance in the normal state. The telescopic gripping portion 32 has a pressing portion 33 that can expand and contract in the width direction and grips both ends in the width direction of the handrail 24 when contracted, as will be described in detail later.

[0027] The connecting body 50 is a long flexible member formed of a lightweight and flexible material such as a string or a rope, and both ends of the connecting body 50 are connected to the respective telescopic gripping portions 32. In this state, both end portions 51 of the connecting body 50 hang down from the telescopic gripping portion 32 to a position below the floor surface 20, and the intermediate portion 52 of the connecting body 50 extends in the width direction between the two balustrades 16 from the lower ends of both end portions 51 (regarding the positional relationship in the width direction). Further, in the normal state shown in FIGS. 1, 3, and 4, the intermediate portion 52 of the connecting body 50 is disposed in the storage portion 21 provided below the floor surface 20. Thereby, when each telescopic gripping portion 32 moves upward, the intermediate portion 52 of the connecting body 50 extends in the width direction between the entrance ends of the two balustrades 16.

[0028] The partition member 54 hangs down from the intermediate portion 52 of the connecting body 50. The partition member 54 is a lightweight substantially rectangular sheet body made of, for example, cloth or resin. In the normal state, the partition member 54 is stored in the storage portion 21 through an opening 20a (FIG. 2) formed in the floor surface 20 of the entrance. In FIGS. 4 and 6, the partition member 54 is shown by a sandy area.

[0029] When the moving handrail 24 decelerates and stops due to an abnormality, the control device 60 causes each of the telescopic gripping portions 32 to grip the moving handrail 24 with the moving handrail 24 interposed therebetween, and the partition member 54 is deployed upward at the entrance as shown in FIGS. 2, 5, and 6 by the movement of the moving handrail 24 before stopping. In this state, the intermediate portion 52 of the connecting body 50 extends in the width direction between the entrance ends of the both handrails 16, so that the partition member 54 extends left and right and is deployed upward to prohibit the entry of passengers from the entrance of the escalator 10. As a result, as will be described later, in the escalator 10, the partition member 54 as an entry prohibition partition can be automatically installed without the need for the labor of workers at the time of an abnormality, and a configuration that does not require the drive of a large power source when installing the partition member 54 can be realized. Note that, in the deployed state of the partition member 54, characters such as "Entry Prohibited" for calling the attention of passengers may be displayed on the surface facing the boarding area 18.

[0030] The telescopic gripping portion 32 will be described in detail with reference to FIGS. 7 to 9. FIG. 7 is an enlarged view of a portion C in FIG. 4, showing the inside of the case 36 of the telescopic gripping portion 32. FIG. 8 shows the inside of the case 36 as viewed from above in FIG. 7. FIG. 9 is a view corresponding to FIG. 5 showing a state when the jam bar 38 is pulled out between the other ends of the pressing portions 33.

[0031] The telescopic gripping portion 32 includes two pressing portions 33 and a case 36. Each pressing portion 33 has a plate shape with a substantially J-shaped cross section, has a pressing end 34 at one end, and the two pressing portions 33 are separated from each other with the moving handrail 24 interposed therebetween so that the pressing ends 34 face each other in the width direction (the left-right direction in FIGS. 7 and 8). The other end of each pressing portion 33 is inserted into both ends in the width direction of the case 36 so as to be movable in the width direction. Each pressing portion 33 has, for example, a main body portion 33a made of resin or metal and having a substantially J-shaped cross section and a continuous shape in the vertical direction in FIG. 8 orthogonal to the width direction, and a bent portion 33b provided between the case 36 on the side opposite to the pressing end 34 of the main body portion 33a. The bent portion 33b has a first plate portion 33b1 extending from the main body portion 33a and a second plate portion 33b2 extending in a direction facing each other from the upper end of the first plate portion 33b1.

[0032] At the bent portion 33b of the both pressing portions 33, a tension coil spring 39 is connected to the proximal end side of the first plate portion 33b1. Thereby, the other ends of the both pressing portions 33 are constantly biased in the contracting direction by the tension coil spring 39 inside the case 36. The tension coil spring 39 corresponds to a telescopic spring. Also, between the tips of the second plate portion 33b2, which is between the other ends of the both pressing portions 33, a jam rod 38, which is a cylindrical iron core, is sandwiched. The jam rod 38 corresponds to a jamming member. Thereby, the jam rod 38 holds the pressing ends 34 of the both pressing portions 33 at an extended position (the position shown in FIG. 7) separated from the moving handrail 24 in the width direction.

[0033] The case 36 has a shape in which a bottomed cylindrical tube portion 36b is connected to one longitudinal end of a substantially rectangular parallelepiped box portion 36a. Guide holes 37 are formed at both ends in the width direction of the box portion 36a, and the other ends of the main body portions 33a of the pressing portions 33 are inserted into the guide holes 37 so as to be movable in the width direction.

[0034] A removal drive portion 70 (FIG. 8) is housed and fixed in the tube portion 36b of the case 36. The removal drive portion 70 is formed by a coil 71, and by energizing the coil 71, the jam rod 38 is removed from between the other ends of the pressing portion 33 into the coil 71. A compression spring 72 is provided between the jam rod 38 and the bottom plate of the tube portion 36b, and biases the jam rod 38 so as to be pushed into between the other ends of the pressing portion 33. Thereby, the state in which the jam rod 38 is inserted between the other ends of the pressing portion 33 can be stably maintained during normal times. Energization of the removal drive portion 70 is controlled by a control device 60 described later.

[0035] As shown in FIG. 9, when the interfering rod 38 is removed from between the other ends of the pressing portions 33, the distance between the pressing portions 33 is reduced due to the biasing force of the tension coil spring 39 in the contracting direction. As a result, the distance between the pressing ends 34 of the pressing portions 33 is reduced, so that the widthwise both ends of the moving handrail 24 can be grasped by the telescopic gripping portion 32. Further, after the interfering rod 38 is removed from between the other ends of the pressing portions 33, the control device 60 stops energizing the coil 71 (FIG. 8). In this case, after the interfering rod 38 is removed, the distance between the other ends of the pressing portions 33 becomes smaller than the diameter of the interfering rod 38 due to the biasing force of the tension coil spring 39. As a result, the interfering rod 38 is not pushed into between the other ends again, and the state in which the moving handrail 24 is grasped by the telescopic gripping portion 32 can be maintained even when the energization of the coil 71 is stopped.

[0036] Both ends of the connecting body 50 are connected to the cases 36 of the two telescopic gripping portions 32. In this state, both end portions 51 of the connecting body 50 hang downward from the case 36, and the intermediate portion 52 of the connecting body 50 extends in the width direction. A partition member 54 is suspended from the intermediate portion 52. Normally, as shown in FIG. 1, the cases 36 of the respective telescopic gripping portions 32 are arranged on the upper surface of a support base 80 arranged adjacent to the entrance side end surface of the deck board portion 14. In this state, the two pressing portions 33 of each telescopic gripping portion 32 are separated and opposed to both ends in the width direction of the moving handrail 24. Each support base 80 is composed of two rectangular parallelepiped portions facing each other with a gap 81 in the width direction. The end portion 51 (FIG. 2) of the connecting body 50 hanging down from the case 36 extends into the accommodating portion 21 below the floor surface 20 through the gap 81 between the rectangular parallelepiped portions. Since the end portion 51 of the connecting body 50 passes through the gap 81 of the support base 80 in this way, when the telescopic gripping portion 32 grasps the moving handrail 24 and moves upward as described later, the end portion 51 of the connecting body 50 can smoothly exit from the entrance side end of the support base 80 through the gap 81 to the boarding area 18 side. Further, since the end portion 51 of the connecting body 50 hangs down, all of the partition members 54 suspended from the intermediate portion of the connecting body 50 during normal times can be hidden in the accommodating portion 21 below the floor surface 20.

[0037] Further, at a position adjacent to the boarding area 18 side of the support base 80 on the floor surface 20, a substantially rectangular opening 20a (FIG. 5) extending in the width direction is formed. The partition member 54 is normally suspended from the intermediate portion 52 of the connecting body 50 and is accommodated in the accommodating portion 21 through this opening 20a. The partition member 54 may be simply arranged in a state of hanging down in the accommodating portion 21, but may be wound up in a roll shape or arranged in the accommodating portion 21 in a shape where it is folded back and overlapped alternately in a plurality of times in different directions. Further, the opening 20a is closed by an opening / closing lid portion 20b (FIG. 5) that can rotate about an axis extending in the width direction.

[0038] The control device 60 is configured to include a microcomputer having a storage unit such as a CPU and a memory. An earthquake detector 62 and a fire detector 64 are connected to the control device 60. When the earthquake detector 62 detects an earthquake with a shaking greater than a predetermined level, it outputs an earthquake detection signal, which is an abnormal signal, to the control device 60. The fire detector outputs a fire detection signal, which is an abnormal signal, to the control device 60 when it detects a fire in the building. When an abnormal signal is input to the control device 60 from the earthquake detector 62 or the fire detector 64, the control device 60 notifies the passengers through the voice output unit that an earthquake or a fire has occurred and that the escalator 10 is to be stopped, and decelerates and stops a plurality of steps 22 and the handrail 24. Further, when the handrail 24 decelerates and stops due to an abnormality, the control device 60 controls the extraction drive unit 70 to extract the jam bar 38 from between the other ends of the pressing portion 33 so that the pressing portion 33 grabs the handrail 24. Then, as shown in FIGS. 2, 5, and 6, the control device 60 unfolds the partition member 54 upward at the entrance of the escalator 10 by the movement of the handrail 24 before stopping. In this case, when the handrail 24 starts to decelerate due to an abnormality, the control device 60 controls the timing at which the telescopic gripping portions 32 grab the handrail 24 so that each of the telescopic gripping portions 32 grabs the handrail 24 and moves upward to a predetermined position lower than the upper end of the entrance side end of the handrail 24 (the position indicated by point D in FIG. 2) and stops.

[0039] FIG. 10 is a flowchart showing a method of deploying the partition member 54 when an abnormality occurs. The control device 60 first determines in step S10 whether an abnormality has occurred based on the input of an abnormality signal from the earthquake detector 62 or the fire detector 64. If the determination result in step S10 is affirmative (YES), the process proceeds to step S12 to start decelerating a plurality of steps 22 and the handrail 24. If the determination result in step S10 is negative (NO), the process of step S10 is repeated.

[0040] After step S12, in step S14, the control device 60 determines whether the planned moving length of the handrail 24 from the current time to the stop of the handrail 24 has reached a predetermined length L (FIG. 5) at which the moving position of the telescopic gripping portion 32 is lower than the upper end of the above-mentioned inlet side end. If the determination result in step S14 is affirmative (YES), the process proceeds to step S16, and the interference bar 38 of the telescopic gripping portion 32 is extracted from between the other ends of the pressing portion 33 by the extraction driving portion 70, so that the telescopic gripping portion 32 grips the handrail 24. If the determination result in step S14 is negative (NO), the process of step S14 is repeated. In step S18, as the handrail 24 moves with the telescopic gripping portion 32 gripping the handrail 24, the partition member 54 is deployed upward. At this time, the middle portion of the connecting body 50 from which the partition member 54 is suspended pushes open the opening / closing lid portion 20b closing the opening 20a upward, and the partition member 54 is deployed upward through the opening 20a. Then, in step S20, a plurality of steps 22 and the handrail 24 stop and the process ends.

[0041] According to the above-described entry prohibition partition automatic deployment device 30, when the moving handrail 24 decelerates during an abnormality, the control device 60 grips the moving handrail 24 with the pressing portion 33 at each of the telescopic gripping portions 32 below both moving handrails 24, and by the movement of the moving handrail 24 before stopping, the partition member 54 can be deployed upward at the entrance of the escalator 10. Therefore, the partition member 54 can be automatically installed at the entrance without the need for the labor of the worker when an abnormality occurs. In addition, since the force required to raise the partition member 54 against gravity can utilize the force of the moving handrail 24 moving before stopping, unlike the case of generating power with a motor to raise the fence member with a rack and pinion device as in the configuration of Patent Document 1, a large amount of power is not required. For this reason, it is not necessary to drive a large power source when installing the partition member 54.

[0042] Further, when the moving handrail 24 starts to decelerate due to an abnormality, the control device 60 controls the timing of the telescopic gripping portion 32 gripping the moving handrail 24 so that each of the telescopic gripping portions 32 grips the moving handrail 24 and moves to a predetermined position lower than the upper end of the entrance side end of the moving handrail 24 and stops. Thereby, the partition member 54 can be accurately raised and deployed to an appropriate position without being pulled up too much.

[0043] Furthermore, normally, the partition member 54 is suspended from the connecting body 50 and is accommodated in the lower accommodating portion 21 through the opening 20a of the entrance floor surface 20, and the opening 20a is closed by the rotatable opening and closing lid portion 20b. Thereby, it is possible to prevent the partition member 54 from obstructing the passengers during normal times, and since the opening 20a formed in the floor surface 20 for accommodating the partition member 54 is closed by the opening and closing lid portion 20b during normal times, it is difficult for the passengers to feel uncomfortable. Also, when an abnormality occurs, the opening and closing lid portion 20b can be pushed open by the connecting body 50 pulled upward by the upward movement of the telescopic gripping portion 32 that has gripped the moving handrail 24, and the partition member 54 can be deployed upward.

[0044] In the above embodiment, the telescopic gripping portion 32 has been described as having a configuration in which the jam bar 38 is extracted from between the other ends of the two pressing portions 33. However, it may be configured such that a flat jam plate as a jam member is extracted from between the other ends of the two pressing portions 33 by the extraction driving portion 70. Further, in the above, the telescopic gripping portion 32 has the case 36, and the case where the two pressing portions 33 are inserted into the case 36 has been described. However, the case may be omitted, and it may be configured to have a guide frame that supports each pressing portion 33 so as to be movable in the width direction of the other end of the two pressing portions 33, and the extraction driving portion may be fixed to the guide frame.

[0045] Further, the control device 60 may be configured to determine the occurrence of an abnormality and decelerate and stop the moving handrail 24 and the plurality of steps 22 when an excessive load is applied for some reason during step 22. Also at this time, as in the above embodiment, when decelerating the moving handrail 24, each telescopic gripping portion 32 grips the moving handrail 24 with it in between, and the partition member 54 is deployed upward at the entrance by the movement of the moving handrail 24 before it stops.

Explanation of Reference Numerals

[0046] 10 Escalator, 12 Truss, 14 Deck board portion, 16 Rail, 17 Handrail guide, 18 Landing, 20 Floor surface, 20a Opening, 20b Opening / closing lid portion, 21 Storage portion, 22 Step, 24 Moving handrail, 30 Entrance prohibition partition automatic deployment device, 32 Telescopic gripping portion, 33 Pressing portion, 34 Pressing end, 36 Case, 38 Jam bar, 39 Telescopic spring, 40 Partition member, 50 Connecting body, 54 Partition member, 60 Control device, 62 Earthquake detector, 64 Fire detector, 70 Extraction driving portion, 80 Support base.

Claims

1. In a passenger conveyor having a moving handrail movably supported by balustrades erected at both ends in the width direction, an entry prohibition partition automatic deployment device for prohibiting passengers from entering from the entrance on the platform side, A telescopic gripping part disposed below the moving handrail so as to straddle in the width direction and having a pressing part capable of expanding and contracting in the width direction length, and having a pressing part that grips both ends in the width direction of the moving handrail when contracted; A connecting body connected to each of the telescopic gripping parts and extending in the width direction between both balustrades; A partition member suspended from the connecting body; And a control device for controlling the operation of the telescopic gripping part, When the moving handrail decelerates and stops due to an abnormality, the control device causes each of the telescopic gripping parts to grip the moving handrail, and the moving of the moving handrail before stopping causes the partition member to be deployed upward at the entrance. An entry prohibition partition automatic deployment device for a passenger conveyor.

2. The other end of the pressing part of the telescopic gripping part is constantly biased in the contracting direction by a telescopic spring, an interfering member is sandwiched between the other ends, and the pressing part is held at an extended position away from the moving handrail. Further, it includes a extraction drive part for extracting the interfering member from between the other ends, When the moving handrail decelerates and stops due to the abnormality, the control device controls the extraction drive part to extract the interfering member, so that the pressing part grips the moving handrail. The entry prohibition partition automatic deployment device for a passenger conveyor according to Claim 1.

3. When the moving handrail starts to decelerate due to the abnormality, the control device controls the timing at which each of the telescopic gripping parts grips the moving handrail so that each of the telescopic gripping parts grips the moving handrail and moves to a predetermined position lower than the upper end of the end on the entrance side of the moving handrail and stops. The automatic deployment device for the access prohibition partition of the passenger conveyor according to claim 1 or claim 2.

4. Normally, the partition member is suspended from the connecting body and accommodated in the lower accommodating portion through an opening formed in the floor surface of the entrance. The opening is closed by a rotatable opening / closing lid portion. The automatic deployment device for the access prohibition partition of the passenger conveyor according to claim 1 or claim 2.

5. Normally, the partition member is suspended from the connecting body and accommodated in the lower accommodating portion through an opening formed in the floor surface of the entrance. The opening is closed by a rotatable opening / closing lid portion. The automatic deployment device for the access prohibition partition of the passenger conveyor according to claim 3.

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