CN117246887A - passenger conveyor - Google Patents

Abstract

The embodiment of the invention relates to a passenger conveyor, which enables passengers to easily notice a step part at a descending opening and can prevent passengers from falling down when the passengers descend from the passenger conveyor. A passenger conveyor (1) according to an embodiment of the present invention is provided with: a pair of left and right handrails (13) extending from the entrance to the descent opening; skirt portions (25) respectively positioned at lower parts of the pair of left and right rails (13); a plurality of steps (30) running between the pair of left and right skirts; an air supply port (104) provided on a skirt portion (25) in the vicinity of the descent port; and an air supply device (101) for supplying air to the air supply port (104) and supplying air from the air supply port (104) to the upper part of the step (30).

Description

Passenger conveyor

Citation of related applications such as priority base application: the present application is based on Japanese patent application 2022-97299 (application day: 2022, 6, 16 days) and enjoys priority of the application. The present application is incorporated by reference in its entirety.

Technical Field

Embodiments of the present invention relate to a passenger conveyor.

Background

In a passenger conveyor such as an escalator or a moving walk, a lighting device or a speaker, which is called a comb lamp, provided near a landing entrance is operated to draw attention to a step portion existing at the landing entrance so that a passenger approaching the landing entrance can be noticed.

However, the arousal of attention by the lighting device or the speaker is not effective for all passengers who use the passenger conveyor. For example, in the case of a lighting device, a passenger with weak eyesight, a passenger focusing on the operation of a smartphone, or the like may have difficulty in noticing an attention call by the lighting device. In addition, in the case of a speaker, it may be difficult for a passenger with weak hearing, a passenger with headphones to listen to music, or the like to hear the broadcast.

Disclosure of Invention

Accordingly, an object of the present invention is to provide a passenger conveyor in which a passenger can easily notice a step portion at a descent entrance and can be prevented from falling down when the passenger descends from the passenger conveyor.

The passenger conveyor according to embodiment 1 of the present invention includes: a pair of right and left handrails extending from the entrance to the descent opening; a skirt part which is respectively arranged at the lower parts of the pair of left and right railings; a plurality of steps running between a pair of left and right skirt sections; an air supply port provided on the skirt portion in the vicinity of the descent port; and an air supply device for supplying air to the air supply port and supplying air from the air supply port to the upper part of the step.

In the passenger conveyor according to embodiment 2 of the present invention, in the passenger conveyor according to embodiment 1, the step moves between an upper floor and a lower floor of a building, the skirt portion has a curved portion with a curved upper end portion in the vicinity of the descent port, and the air supply port is provided in the curved portion.

A passenger conveyor according to embodiment 3 of the present invention is the passenger conveyor according to embodiment 1 or 2, wherein a passenger detection unit for detecting a passenger riding on the step is provided upstream of the air blowing port in a moving direction of the step, and the air blowing device blows air to the air blowing port when the passenger detection unit detects a passenger.

A passenger conveyor according to embodiment 4 of the present invention is the passenger conveyor according to embodiment 3, further comprising an illumination device for illuminating the vicinity of the descent opening, wherein the illumination device is changed in a lighting state when the passenger detection unit detects a passenger.

A passenger conveyor according to embodiment 5 of the present invention is the passenger conveyor according to embodiment 1 or 2, wherein a first operation in which the steps move from one of the elevator gates to the other elevator gate and a second operation in which the steps move from the other elevator gate to the one elevator gate are switched, the air supply port includes a first air supply port provided in the skirt portion near the one elevator gate and a second air supply port provided in the skirt portion near the other elevator gate, and the air supply device supplies air to the second air supply port during the first operation and supplies air from the second air supply port to the upper side of the steps, and supplies air to the first air supply port during the second operation and supplies air from the first air supply port to the upper side of the steps.

The passenger conveyor according to embodiment 6 of the present invention is the passenger conveyor according to embodiment 1 or 2, wherein air is blown obliquely downward from the air supply port.

A passenger conveyor according to embodiment 7 of the present invention is the passenger conveyor according to embodiment 1 or 2, wherein a plurality of the air blowing openings are provided in the skirt portion at intervals in the vertical direction.

In the passenger conveyor of the embodiment, it is possible to prevent various passengers who utilize the passenger conveyor from falling down at the descent entrance.

Drawings

Fig. 1 is a side view schematically showing a passenger conveyor according to an embodiment of the present invention.

Fig. 2 is a sectional view taken along line A-A of fig. 1.

Fig. 3 is a side view showing the vicinity of the landing entrance on the upper layer side in fig. 1 in an enlarged manner.

Fig. 4 is a block diagram showing an electrical configuration of a passenger conveyor according to an embodiment of the present invention.

Fig. 5 is a side view schematically showing the passenger conveyor of modification 1.

Fig. 6 is a side view schematically showing the passenger conveyor of modification 2.

Detailed Description

The passenger conveyor 1 according to an embodiment of the present invention will be described below with reference to the drawings.

In the present embodiment, an escalator in which a plurality of steps 30 (hereinafter, sometimes referred to as "steps 30") are circulated between the upper landing entrance 17 and the lower landing entrance 18 is described as the passenger conveyor 1, but the present invention can be applied to a travelator in which the steps move in the horizontal direction.

In the following description, the longitudinal direction of the truss 2 may be referred to as the front-rear direction, and the width direction of the truss 2 may be referred to as the left-right direction. The front-rear direction and the left-right direction indicate directions when the upper layer is viewed from the lower layer, and the upper layer side is the front side and the lower layer side is the rear side.

(1) Passenger conveyor 1

As shown in fig. 1, a truss 2 extending in the front-rear direction (the direction of movement of the steps 30) is a frame of the passenger conveyor 1, and is supported by support angle irons (not shown) across the upper and lower floors of the building. In fig. 1, the components on the right side of the passenger conveyor 1 are omitted.

The passenger conveyor 1 includes: a horizontal part, which is positioned near the landing ports 17, 18 of the upper and lower layers, and the steps 30 move horizontally; an intermediate inclined portion in which the steps 30 linearly move at a predetermined inclination angle; and a pair of upper and lower curved portions connecting the horizontal portion and the intermediate inclined portion gently, the steps 30 moving in a curved shape.

The steps 30 are connected by endless step chains 11 disposed on both sides thereof, and are disposed in a truss 2 provided under the floor of a building.

The step 30 includes a pair of left and right step frames 31 each having a substantially triangular side surface, a track plate surface 32 formed on the upper surface of the step frame 31, and a riser surface 33 formed on the rear surface of the step frame 31. The step frame 31, the track plate surface 32, and the riser surface 33 are integrally formed by aluminum die casting.

On the surface of the track plate surface 32, that is, on the surface on which the passengers ride on the steps 30, a plurality of track plate protrusions extending in the moving direction (front-rear direction) of the steps 30 are provided in parallel with each other at predetermined intervals, and track plate grooves are formed between adjacent track plate protrusions.

A pair of left and right front wheels 35 are provided on the front end portions of the pair of left and right step frames 31 via bearings on support shafts protruding outward in the width direction of the steps 30. A pair of left and right rear wheels 37 are provided on the outer sides of the front end portions of the mounting portions integrally formed with the step frames 31 at the rear lower end portions of the pair of left and right step frames 31 via bearings.

As shown in fig. 2, a pair of left and right front rails 42 and rear rails 43 fixed to the truss 2 via the support members 40 are disposed along the traveling direction of the steps 30 on both sides in the width direction of the steps 30. The front rail 42 includes a rolling surface on which the front wheels 35 provided on the steps 30 roll, and guides the front wheels 35 along the traveling direction of the steps 30. The rear rail 43 includes a rolling surface on which the rear wheels 37 provided on the steps 30 roll, and guides the rear wheels 37 along the traveling direction of the steps 30.

A drive device 6 for driving the steps 30, a pair of left and right drive sprockets 7, a pair of left and right handrail sprockets (not shown), and a control unit 16 are provided in the machine room 5 on the upper side of the upper end portion of the truss 2.

The drive device 6 includes a motor including an induction motor (asynchronous motor), a speed reducer, an output sprocket attached to an output shaft of the speed reducer, a step chain 11 driven by the output sprocket, and a disc brake for stopping rotation of the motor and maintaining the stopped state. The drive sprocket 7 is rotated by a drive chain 8. The pair of right and left drive sprockets 7 and the pair of right and left handrail belt sprockets are connected by a connecting belt, not shown, to rotate in synchronization.

A driven sprocket 10 is provided in the machine room 9 on the lower floor side of the lower end portion of the truss 2. A pair of left and right endless step chains 11 are provided between the upper drive sprocket 7 and the lower driven sprocket 10. The front wheels 35 of the plurality of steps 30 are mounted on the pair of left and right step chains 11 at equal intervals.

When the drive sprocket 7 rotates by receiving a rotational force from the drive device 6, the step chain 11 is circulated between the drive sprocket 7 and the driven sprocket 10. Along with this, the front wheels 35 and the rear wheels 37 provided on the steps 30 travel on the front rail 52 and the rear rail 53, engage with the concave portions provided on the outer peripheral portion of the drive sprocket 7 and the concave portions provided on the outer peripheral portion of the driven sprocket 10, and the steps 30 are reversed vertically. Thus, the steps 30 alternately pass through the outgoing path for transporting passengers by moving from one of the landing ports (entrance ports) 17, 18 to the other landing port (exit port) 18, 17 and the return path for moving from the exit port to the entrance port below the outgoing path, and circulate between the upper landing port 17 and the lower landing port 18.

Landing plates 19, 20 are provided at the landing ports 17, 18 on the upper and lower floors so as to cover the upper surfaces of the machine chambers 5, 9. At the front ends of the landing plates 19, 20, there are provided a plurality of comb plates 44, 45 having comb teeth protruding at equal intervals. The comb teeth are inclined downward as being thinner toward the tip end side, and the ends thereof are curved and rounded, and by engaging with the track shoe protrusions provided on the steps 30, the feet, foreign matter, etc. of the passengers on the steps 30 are lifted onto the landing plates 19, 20, preventing the feet, foreign matter, etc. of the passengers from being pinched between the steps 30 and the landing plates 19, 20.

A pair of right and left rails 13 are erected on the right and left sides of the truss 2. A handrail rail 14 is provided at an upper portion of the balustrade 13, and a handrail belt 15 moves along the handrail rail 14 in synchronization with the steps 30.

An upper front skirt guard 21 is provided at the upper front lower portion of the rail 13, and a lower front skirt guard 22 is provided at the lower front lower portion. The front skirt panels 21 and 22 on the upper and lower sides protrude into the inlet and outlet portions 23 and 24, respectively, which are the entrances and exits of the handrail 15.

Further, an operation panel 46 and a speaker 48 are provided on the inner surface of one of the pair of right and left upper front skirt panels 21 (for example, the right front skirt panel 21). An operation panel 47 and a speaker 49 are provided on the inner side surface of one of the pair of right and left lower front skirt panels 22.

The operation panels 46 and 47 are provided with a start switch, not shown, for starting the passenger conveyor 1. An operation command signal is output to the control unit 16 by the operation of the start switch. When receiving the operation command signal, the control unit 16 switches between an ascending operation in which the steps 30 move from the lower-stage entrance 18 to the upper-stage entrance 17 and a descending operation in which the steps 30 move from the upper-stage entrance 17 to the lower-stage entrance 18 by controlling the motor of the driving device 6.

A skirt portion 25 is provided in the front-rear direction at the lower side of each of the pair of right and left rails 13 extending from the entrance 17 to the entrance 18. As shown in fig. 2, the skirt 25 includes a plate-shaped inner rail 26 covering the lower part of the balustrade 13 on the step 30 side (the inner side in the width direction), an outer rail 27 covering the lower part of the balustrade 13 on the outer side, and a plate-shaped skirt 28 disposed along the up-down direction so as to face the side surface of the step 30. The steps 30 run between the pair of left and right skirt guards 28. The inner rail 26 is provided to protect the feet of the passenger together with the skirt guard 28, and is installed obliquely between the upper end of the skirt guard 28 and the step 30 side of the lower portion of the balustrade 13.

As shown in fig. 1, the skirt portion 25 includes an upper horizontal portion 25a, an upper bent portion 25b, a middle inclined portion 25c, a lower bent portion 25d, and a lower horizontal portion 25e in this order from the upper side toward the lower side.

The upper horizontal portion 25a is a portion constituting an upper end portion of the skirt portion 25, and is a portion in which an upper end portion of the skirt portion 25 (i.e., the inner rail 26 and the outer rail 27) extends in the horizontal direction. The lower horizontal portion 25e is a portion constituting a lower end portion of the skirt portion 25, and is a portion in which an upper end portion of the skirt portion 25 extends in the horizontal direction. The intermediate inclined portion 25c is a portion provided at the front-rear direction central portion of the skirt portion 25, and is a portion at which the upper end portion of the skirt portion 25 is inclined in the moving direction of the step 30. The upper-stage-side bent portion 25b is a portion that gently connects the upper-stage-side horizontal portion 25a and the intermediate inclined portion 25c, and is a portion at which the upper end portion of the skirt portion 25 is bent so as to bulge upward. The lower bent portion 25d is a portion that gently connects the lower horizontal portion 25e and the intermediate inclined portion 25c, and is a portion in which the upper end portion of the skirt portion 25 is bent so as to bulge downward.

The pair of left and right skirts 25 are provided with descending port approaching guides 100A and 100B for notifying passengers of the immediate arrival at the descending port, respectively, in the vicinity of the upper-stage side ascending/descending port 17 and in the vicinity of the lower-stage side ascending/descending port 18.

(2) Descending port approach guide device 100A, 100B

Next, the descent opening approach guide devices 100A and 100B will be described with reference to fig. 1 to 3. The descent port approach guide device 100A provided near the upper-stage entrance 17 has the same configuration as the descent port approach guide device 100B provided near the lower-stage entrance 18, and therefore the descent port approach guide device 100A provided near the upper-stage entrance 17 will be described herein.

The descent port approaching guide device 100A includes a blower device 101, a blower pipe 102, and a passenger detection unit 103 provided in the upper bent portion 25b of the skirt portion 25.

As shown in fig. 2 and 3, the blower 101 has a compressor that generates compressed air, and the compressed air generated by the compressor is blown out obliquely downward from a blower port 104 provided near the upper-stage-side landing port 17 toward the upper side of the steps 30, specifically, the track plate surface 32 or a position slightly above the track plate surface, via a blower pipe 102, and the air is blown to a portion of the passengers on the steps 30 below the knees.

In the present embodiment, the plurality of air outlets 104 are provided at intervals in the moving direction of the steps 30 along the curved shape of the upper end portion of the upper curved portion 25b in the upper portion of the skirt panel 28. The air duct 102 branches off midway and is connected to each of the plurality of air outlets 104, and the compressed air generated by the air blower 101 is discharged from each of the air outlets 104.

The passenger detection unit 103 is a photoelectric sensor configured by a light emitting unit provided on one of the pair of right and left skirt guards 28 and a light receiving unit provided on the other skirt guard 28. Light is always emitted from the light emitting portion of the passenger detecting portion 103 to the light receiving portion, and when the light is blocked by the feet of the passenger, it is determined that the passenger passing through the upper layer side bending portion 25b is detected, and a passenger detection signal is output to the control portion 16. The passenger detection unit 103 is provided on the lower layer side (i.e., on the upstream side in the moving direction of the steps 30 during the ascending operation) of the air blowing outlet 104.

In the present embodiment, the air outlet 104 of the descent port approaching guide device 100A is provided in the upper bent portion 25b, but the air outlet 104 may be provided in the upper horizontal portion 25a as long as it is positioned on the lower side than the tip end of the comb plate 44 provided in the entrance 17. The air supply port 104 is preferably provided in a range of 1 step (i.e., 1 step) of the length (e.g., 40 cm) of the track surface 32 of the step 30 from the tip end of the comb plate 44 to the lower layer side, and 3 steps of the length (e.g., 120 cm) of the track surface 32 of the step 30 or less.

(3) Electrical construction of passenger conveyor 1

The electrical configuration of the passenger conveyor 1 will be described with reference to the block diagram of fig. 4.

The control unit 16 is connected to the motor of the driving device 6, and is connected to the operation panels 46 and 47, the speakers 48 and 49, the blower 101 and the passenger detection unit 103 of the upper-stage-side approach guide device 100A, and the blower 101 and the passenger detection unit 103 of the lower-stage-side approach guide device 100B. The control unit 16 receives operation command signals from the operation panels 46 and 47, receives passenger detection signals from the passenger detection units 103 of the descent entrance guide devices 100A and 100B, and controls the operation of the passenger conveyor 1 based on the received signals.

(4) Operation of descent opening approach guide devices 100A and 100B

Next, the operation of the descent opening approach guide devices 100A and 100B will be described.

When the passenger conveyor 1 performs the ascending operation, the descent port approach guide device 100B provided near the descent port 18 on the lower floor side serving as the entrance is not operated, and the descent port approach guide device 100A provided near the descent port 17 on the upper floor side serving as the descent port is operated.

Specifically, in the descent port approach guide device 100B provided near the lower-stage-side entrance 18, the blower device 101 is not operated and air is not blown out toward the steps 30 from the air blowing port 104, regardless of whether the passenger detection unit 103 detects or does not detect a passenger. On the other hand, in the descent port approach guide device 100A provided near the upper-stage side entrance 17, the blower 101 is not operated while the passenger detection unit 103 is not detecting a passenger, and when the passenger detection unit 103 detects a passenger, the respective blower 101 provided in the left and right skirts 25 are operated to discharge air from the air supply port 104 toward the steps 30. Thus, air is blown to the feet of the passenger on the step 30 in the vicinity of the upper landing entrance 17, and the passenger is notified of the fact that the passenger is approaching the landing entrance.

In the case where the passenger conveyor 1 is operated to descend, the air blowing device 101 does not operate and does not blow out air from the air blowing port 104 toward the steps 30, regardless of whether the passenger detection unit 103 detects or does not detect a passenger, in the descent entrance approach guide device 100A provided near the entrance 17 on the upper side of the entrance. On the other hand, in the descent port approach guide device 100B provided near the lower-stage-side entrance 18, the blower 101 is not operated during a period in which the passenger detection unit 103 does not detect a passenger, and when the passenger detection unit 103 detects a passenger, the respective blower 101 provided in the left and right skirts 25 are operated to discharge air from the air supply port 104 toward the steps 30. Thus, air is blown to the passengers on the steps 30 near the lower landing entrance 18, and the passengers are notified of the fact that the passengers are approaching the landing entrance.

(5) Effects of

In the passenger conveyor 1 of the present embodiment, when a passenger approaches the descent port, air is blown from the air blowing port 104 provided near the descent port to the feet of the passenger on the steps 30, and thus the passenger can recognize that the passenger is approaching the descent port by tactile sensation without depending on the sense of sight or sense of hearing. In particular, since the air outlet 104 is provided at the upper portion of the skirt guard 28, it is not in contact with the shoes of the passenger but in contact with the upper foot, and thus the passenger can easily notice the contact of the air. Thus, it is possible to prevent a fall at the descent entrance for various passengers who utilize the passenger conveyor, including visually impaired passengers and hearing impaired passengers who concentrate on the operation of the smartphone.

In the present embodiment, the descent port approach guide devices 100A and 100B operate the blower device 101 to discharge air from the air supply port 104 when the passenger detection unit 103 detects a passenger, and thus air is not unnecessarily discharged from the air supply port 104.

While the present invention has been described with reference to several embodiments, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other modes, and various omissions, substitutions, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and their equivalents.

In the following, a plurality of modification examples will be described, but any one of the modification examples may be applied to the above-described embodiment, and any two or more of the modification examples may be applied in combination.

Modification 1

As shown in fig. 5, illumination devices 110 and 112 that illuminate the vicinity of the entrance 17 on the upper floor side and the vicinity of the entrance 18 on the lower floor side may be provided, and when the passenger detection unit 103 of the entrance approach guide devices 100A and 100B detects a passenger, the illumination state of one of the illumination devices 110 and 112 provided in the vicinity of the entrance may be changed.

Specifically, the lighting devices 110 and 112 are provided on the skirt 28 of the upper horizontal portion 25a and the lower horizontal portion 25e of the skirt 25. The illumination devices 110 and 112 continuously illuminate the feet of the passengers near the comb plates 44 and 45 during the operation of the passenger conveyor 1.

When the passenger detection unit 103 of the entrance approach guide device 100A detects a passenger in the vicinity of the entrance 17 on the upper floor, which is a descent entrance, in the case where the passenger conveyor 1 performs the ascending operation, air is blown out from the air supply port 104 on the upper floor, and the illumination device 110 that illuminates the vicinity of the entrance 17 on the upper floor starts to blink.

In the case of performing the descending operation, when the passenger is detected by the passenger detection unit 103 of the descending port access guide device 100B provided near the lower-stage-side entrance 18 serving as the descending port, the air is blown out from the lower-stage-side air supply port 104, and the illumination device 112 that illuminates the vicinity of the lower-stage-side entrance 18 starts to blink.

In this modification, the passenger can visually recognize the situation of the approaching drop-off port in addition to the sense of touch, and the passenger can more easily recognize the situation of the approaching drop-off port.

In the present modification, the lighting states of the lighting devices 110 and 112 provided on the skirt guard 28 are changed, but for example, the lighting states of the upper-layer side end and the lower-layer side end of the lighting devices provided on the balustrade 13 may be changed, or the lighting states of the lighting devices provided on the building so as to be located above the landing doors 17 and 18 may be changed.

In the present embodiment, when the passenger detection unit 103 detects a passenger, the illumination devices 110 and 112 are changed from the always-on state to the blinking state, but the lighting colors of the illumination devices 110 and 112 may be changed, or the brightness of the illumination devices 110 and 112 for illuminating the landing doors 17 and 18 may be changed.

Modification 2

As shown in fig. 6, a plurality of air outlets 104 of the descending port access guides 100A and 100B may be provided at intervals in the vertical direction. By providing the plurality of air outlets 104 in the vertical direction in this way, the air blown out from the air outlets 104 is likely to contact the portion of the passenger that is likely to feel the wind, and the passenger is likely to notice that the passenger is approaching the descent opening.

Modification 3

In the above-described embodiment, the passenger detection unit 103 is provided in the descent port approach guide devices 100A and 100B, and when the passenger detection unit 103 on the descent port side detects a passenger, the blower device 101 is operated to discharge air from the air blowing port 104, but the descent port approach guide devices 100A and 100B on the descent port side may be operated to continuously discharge air from the air blowing port 104 all the time during the operation of the passenger conveyor 1.

Modification 4

In the above embodiment, the case where the photoelectric sensor including the light emitting portion provided on one of the pair of right and left skirt panels 28 and the light receiving portion provided on the other skirt panel 28 is used as the passenger detecting portion 103 has been described, but the passenger detecting portion 103 may be a proximity sensor that detects that a part of the human body is approaching.

In the case where the descending opening proximity guidance devices 100A and 100B each including a proximity sensor are provided as the passenger detection unit 103 in the left and right skirts 25, when the passenger is not detected by the proximity sensor on one of the left and right sides and the passenger is detected by the proximity sensor on the other side only, air may be discharged from the air outlet 104 of the skirt 28 provided on the one side without discharging air, but air may be discharged from the air outlet 104 of the skirt 28 provided on the side where the passenger is detected.

Modification 5

In the above embodiment, the compressor is used as the blower 101, but a blower that rotates a fan by a motor may be used to generate wind, and the wind generated by the blower may be ejected from the blower port 104 through the blower pipe 102.

Claims (7)

1. A passenger conveyor is provided with:

a pair of right and left handrails extending from the entrance to the descent opening;

a skirt part which is respectively arranged at the lower parts of the pair of left and right railings;

a plurality of steps running between a pair of left and right skirt sections;

an air supply port provided on the skirt portion in the vicinity of the descent port; and

and an air supply device for supplying air to the air supply port and supplying air from the air supply port to the upper part of the step.

2. The passenger conveyor of claim 1, wherein,

the steps move between the upper and lower floors of the building,

the skirt portion has a bent portion with a bent upper end portion in the vicinity of the descent port,

the air supply port is arranged at the bending part.

3. The passenger conveyor according to claim 1 or 2, wherein,

a passenger detecting unit for detecting a passenger riding on the step is provided on the upstream side of the air supply port in the moving direction of the step,

when the passenger detecting part detects a passenger, the air supply device supplies air to the air supply port.

4. The passenger conveyor of claim 3, wherein,

comprises an illumination device for illuminating the vicinity of the descent opening,

when the passenger detecting unit detects a passenger, the lighting state of the lighting device is changed.

5. The passenger conveyor according to claim 1 or 2, wherein,

a first operation in which the steps are moved from one of the landing doors to the other landing door and a second operation in which the steps are moved from the other landing door to the one landing door can be switched,

the air supply port includes a first air supply port provided in the skirt portion near the one of the landing ports and a second air supply port provided in the skirt portion near the other of the landing ports,

the air blowing device supplies air to the second air blowing port and sends air from the second air blowing port to the upper part of the step during the first operation, and supplies air to the first air blowing port and sends air from the first air blowing port to the upper part of the step during the second operation.

6. The passenger conveyor according to claim 1 or 2, wherein,

air is blown out obliquely downward from the air supply port.

7. The passenger conveyor according to claim 1 or 2, wherein,

the skirt portion is provided with a plurality of air outlets at intervals in the vertical direction.