CN112173937B

CN112173937B - Passenger conveyor

Info

Publication number: CN112173937B
Application number: CN202010466485.9A
Authority: CN
Inventors: 久下敬辅
Original assignee: Toshiba Elevator Co Ltd
Current assignee: Toshiba Elevator and Building Systems Corp
Priority date: 2019-07-03
Filing date: 2020-05-28
Publication date: 2023-02-28
Anticipated expiration: 2040-05-28
Also published as: CN112173937A; JP6874063B2; JP2021008359A

Abstract

A passenger conveyor. Embodiments of the present invention relate to a passenger conveyor. Provided is a passenger conveyor capable of easily confirming operation information. A control part (50) stores running information representing the running state of the passenger conveyor, and displays the running information on displays (70, 72) positioned at front skirts (40, 42) according to the operations of operation panels (52, 56) positioned at the side surfaces of the skirts (44).

Description

Passenger conveyor

This application is based on Japanese patent application 2019-124172 (application date: 7/3/2019), from which priority is enjoyed. This application incorporates by reference the entirety of this application.

Technical Field

Embodiments of the present invention relate to a passenger conveyor.

Background

Conventionally, in passenger conveyors such as escalators and moving walkways, operation information such as operation time and the number of times of starting is displayed on a digital counter provided in a control panel inside a machine room of a truss. When the manager of the passenger conveyor wants to know such operation information, the manager needs to open the entrance/exit panel at the entrance/exit of the passenger conveyor and check the number counter of the control panel inside the machine room.

However, there is a problem that the work of checking the digital counter of the control panel in the machine room in order to know the operation information is very troublesome.

Disclosure of Invention

Accordingly, an object of an embodiment of the present invention is to provide a passenger conveyor capable of easily confirming operation information.

An embodiment of the present invention includes: a plurality of steps connected in a closed manner; a drive device that drives the steps; a control unit of the drive device; a display unit for displaying at least the operation direction of the steps so as to be visually recognized by passengers; an operation unit provided at a visually recognizable portion of the display unit and configured to operate at least a traveling direction, start and stop of the steps; and a control unit that controls the drive device in accordance with an operation of the operation unit and displays at least the operation direction on the display unit, wherein the control unit stores operation information indicating an operation state of the passenger conveyor and displays the operation information on the display unit in accordance with an operation of the operation unit.

According to the passenger conveyor with the structure, the operation information can be easily confirmed.

Drawings

Fig. 1 is a side explanatory view showing an escalator according to an embodiment of the present invention.

Fig. 2 is a perspective view of the lower floor of the escalator.

Fig. 3 is a front view of the operation panel.

Fig. 4 is an explanatory diagram of a display with operation information displayed.

Fig. 5 is an explanatory diagram of the display when reset is performed.

Fig. 6 is a block diagram of an escalator.

Fig. 7 is a 1 st flowchart of the display processing of the operation information.

Fig. 8 is a flow chart of the 2 nd process of displaying the operation information.

Fig. 9 is a 1 st flowchart of the reset processing of the operation information.

Fig. 10 is a flow chart of the 2 nd process of resetting the operation information.

Detailed Description

An escalator 10 according to an embodiment of the present invention will be described below with reference to fig. 1 to 9.

(1) Escalator 10

The escalator 10 will be described with reference to fig. 1. Fig. 1 is an explanatory view of the escalator 10 as viewed from the side.

Truss 12 as a frame of escalator 10 is supported across upper and lower floors of building 1 using

support angles

2 and 3.

Inside the machine room 14 on the upper layer side of the upper end portion of the truss 12, a drive device 18 for causing the steps 30 to travel, a drive 1 st sprocket 23, a pair of left and right drive side 1

st step sprockets

24, 24 coaxially fixed with the drive 1 st sprocket 23, and a pair of left and right pair of

sprockets

27, 27 are provided. The driving device 18 includes a motor 20, a reduction gear, a driving 2 nd sprocket 21 attached to an output shaft of the reduction gear, and a disc brake for stopping rotation of the motor 20 and maintaining a stopped state. A closed drive chain 22 is bridged over a drive 2 nd sprocket 21 and a drive 1 st sprocket 23 having a larger diameter than the drive 2 nd sprocket 21. When the motor 20 rotates, the drive chain 22 travels, and the 1 st step sprocket 24 rotates. The pair of left and right 1

st step sprockets

24, 24 and the pair of left and right pair of

sprockets

27, 27 are connected by a connection belt, not shown, and rotate synchronously. Further, a control unit 50 for controlling the motor 20, the disc brake, and the like is provided in the upper machine room 14.

A pair of left and right driven-side 2 nd step sprockets 26 are provided inside the machine room 16 on the lower layer side of the lower end portion of the truss 12. A pair of left and right closed

step chains

28, 28 are bridged between the 1 st step sprocket 24 on the upper layer side and the 2 nd step sprocket 26 on the lower layer side. Further, the wheels 301 of the plurality of steps 30 are attached to the pair of right and

left step chains

28, 28 at equal intervals. The wheels 301 of the steps 30 run along a not-shown guide rail fixed to the truss 12, and engage with the recesses in the outer circumferential portions of the 1 st step sprocket 24 and the 2 nd step sprocket 26, and turn upside down. Further, wheels 302 run on guide rails 25 fixed to truss 12.

A pair of left and

right skirt boards

44, 44 and a pair of left and

right balustrades

36, 36 stand on both left and right sides of the truss 12. A handrail rail 39 is provided on the upper portion of the balustrade 36, and the handrail belt 38 moves along the handrail rail 39. An upper-layer-side front apron 40 is provided on the upper-layer-side front lower portion of the balustrade 36, a lower-layer-side front apron 42 is provided on the lower-layer-side front lower portion, and inlet portions 46 and 48 as the entrance and exit of the handrail belt 38 protrude from the

front aprons

40 and 42, respectively. The skirt panels 44 are provided at the lower side of the balustrade 36, and the step 30 runs between a pair of left and

right skirt panels

44, 44.

Operation panels

52 and 56 and

speakers

54 and 58 are provided on the inner surfaces of the apron 44 of the upper and lower stages, respectively.

The handrail belt 38 enters the front apron 40 from the entrance 46 on the upper layer side, is mounted on the belt sprocket 27 via the guide roller group 64, then moves in the apron 44 via the guide roller group 66, and is exposed to the outside of the front apron 42 from the entrance 48 on the lower layer side. The handrail belt 38 is rotated together with the 1 st step sprocket 24 by the belt sprocket 27 to move in synchronization with the steps 30. In addition, a pressing member 68 for pressing the traveling handrail belt 38 against the rotating belt sprocket 27 is provided.

An entrance panel 32 on the upper side is horizontally provided at the entrance of the ceiling surface of the upper-stage machine room 14, and an entrance panel 34 on the lower side is horizontally provided at the entrance of the ceiling surface of the lower-stage machine room 16. A comb-tooth-shaped comb (comb) 60 is provided at the front end of the entrance plate 32, and the steps 30 enter or intrude from the comb 60. Further, a comb-tooth-shaped comb 62 is also provided on the entrance plate 34.

The pair of right and left

front skirt panels

40, 40 on the upper deck are provided with

displays

70, 70 so as to be visually recognized by passengers, and the pair of right and left

front skirt panels

42, 42 on the lower deck are also provided with

displays

72, 72 so as to be visually recognized by passengers, respectively, and the

displays

70, 72 indicate the operation direction (ascending, descending) of the escalator 10 by arrows, and the prohibition of entry is indicated by an "x".

(2)

Operating panels

52, 56

Next, the

operation panels

52 and 56 will be described with reference to fig. 2 to 5. The monitor 70 is visible from the administrator operating the upper-stage control panel 52, and the monitor 72 is visible from the administrator operating the lower-stage control panel 56. Since the operation panel 52 provided on the upper stage has the same structure as the operation panel 56 provided on the lower stage, the operation panel 52 provided on the upper stage will be described.

As shown in fig. 3, an operation key switch 74 and an operation stop key switch 76 are arranged on the operation panel 52.

As shown in fig. 3, the operation key switch 74 has a mechanical automatic reset function, and a manager inserts the key 4 into a key hole 74b of a key cylinder 74a of the operation key switch 74 and rotates the key 4 to an ascending or descending position, thereby rotating the key cylinder 74 a. Then, the key 4 is automatically returned to the neutral position, that is, the position where the key hole 74b is upright, by the rebound, and the key 4 is also pulled out. As shown in fig. 2, when the escalator 10 is ascending, the control unit 50 displays an "x" indicating that entry is prohibited on the display 70 on the upper floor and displays a mark indicating an ascending arrow on the display 72 on the lower floor. Conversely, when the escalator 10 is descending, an arrow indicating the descending is displayed on the upper display 70, and an "x" indicating the prohibition of entry is displayed on the lower display 72.

When the manager inserts the key 4 into the key hole 74b of the operation key switch 74 to rotate the key cylinder 74a to the left side and then automatically resets the key cylinder within the 1 st reference time a (second), the controller 50 rotates the motor 20 in the ascending direction. Next, when the manager keeps the 2 nd reference time b (second) after the position of the key 4 exceeds the 1 st reference time a second, the control unit 50 displays the operation information 1 (operation time) on the

displays

70 and 72 as shown in fig. 4. Next, when the manager exceeds the 2 nd reference time b seconds and holds the position of the key 4 for the 3 rd reference time c (seconds), the control unit 50 displays the operation information 2 (the number of operations) as shown in fig. 4. Next, when the administrator exceeds the 3 rd reference time c seconds and holds the position of the key 4 for the 4 th reference time d (seconds), the control unit 50 displays the operation information 4 (the number of failures) as shown in fig. 4. Wherein a is more than or equal to 0 and more than b and more than c and more than d.

As shown in fig. 3, the operation stop key switch 76 has a mechanical automatic reset function, and the manager rotates the key 4 in the "alarm" direction by inserting the key into the key hole 76b of the key cylinder 76a of the operation stop key switch 76, and then rotates the key in the reverse direction to the "stop" position. Then, the key 4 is returned to the neutral position by the rebound, and the key 4 is also pulled out. When the operation stop key switch 76 is operated, the control unit 50 sounds a stop alarm from the

speakers

54 and 58, stops the escalator 10, and ends the display of the

displays

70 and 72.

When the key 4 is inserted into the key hole 76b of the operation/stop key switch 76 and the key cylinder 76a is rotated to the stop position, the control unit 50 first stops the motor 20. When the administrator holds the key 4 at the stop position for the stop confirmation time x (second), as shown in fig. 5, the operation information resetting confirmation is displayed on the

displays

70 and 72, and when the stop reference time y (second) (where y > x) is continuously held, the operation information data is reset (deleted). The control unit 50 displays the reset completion on the

displays

70 and 72, and then turns off the display.

(3) Electrical construction of escalator 10

Next, the electrical configuration of the escalator 10 will be described with reference to the block diagram of fig. 6.

The control unit 50 is provided with a storage unit 78 for storing operation information. The storage unit 78 is constituted by a memory and other storage devices. The control unit 50 is connected with a drive circuit 80 of the motor 20, a safety device 82, an upper operation panel 52, a lower operation panel 56, an upper display 70, a lower display 72, an upper speaker 54, and a lower speaker 58.

The safety devices 82 include an apron stuck detector provided in the apron 44, an entrance stuck detector provided in the entrance 46 or 48, a step lift detector provided in the guide rail 25, a step chain cut detector, an emergency stop button, and the like. The skirt jam detector detects that foreign matter (e.g., clothes or luggage) is jammed between the skirt 44 and the step 30, and the entrance jam detector detects that foreign matter (e.g., a hand or luggage of a passenger) is simultaneously pulled into the entrance 46 or the entrance 48 where the handrail 38 is pulled into together with the handrail 38.

(4) Display processing of running information

The process of displaying the operation information by the control unit 50 will be described with reference to the flowcharts of fig. 4, 7, and 8. Although the case of raising the escalator 10 will be described below, the same applies to the case of lowering. For reference, the

display

70, 72 in fig. 4 shows the step numbers of the flowchart.

In step S1, the key 4 is inserted into the key hole 74b of the key cylinder 74a of the operation key switch 74, and when turned upward, the process proceeds to step S2 (yes), and if not turned upward, the state of step S1 is continued (no).

In step S2, the control unit 50 starts counting by a built-in timer. Then, the process proceeds to step S3.

In step S3, the control unit 50 determines whether or not the timer count exceeds the 1 st reference time a seconds, and if so, it proceeds to step S10 (yes), and if not, it proceeds to step S4 (no).

In step S4, if the key 4 is returned to the neutral position, the process proceeds to step S5 (in the case of yes), and if not, the process returns to step S3 (in the case of no).

In step S5, the control unit 50 stops the timer counting, resets the counting, and proceeds to step S6.

In step S6, the escalator 10 ends the processing of displaying the running information when the escalator is in the ascending operation or returns to step S1 (yes), and when it is stopped, the process proceeds to step S7 (no).

In step S7, since the vehicle is stopped, the control unit 50 proceeds to step S8 when all the safety devices 82 are normal (yes), and ends the processing of displaying the operation information when one of the safety devices 82 is operating or returns to step S1 (no).

In step S8, since all the safety devices 82 are normal, the control unit 50 starts the ascending operation of the escalator 10 and proceeds to step S9.

In step S9, the control unit 50 displays the arrow indicating the rising on the display 72 at the lower layer, and displays the x mark for prohibiting entry on the display 72 at the upper layer, as shown in fig. 2, and ends the processing of displaying the operation information or returns to step S1.

In step S10, since the key 4 is held for the 1 st reference time a seconds or longer, the control unit 50 displays the operation information 1 (the rising operation time) on the

displays

70 and 72, and proceeds to step S11. That is, as shown in FIG. 4, shown as "UP Time 1234". In this case, if the number of bits during operation is large and all of the bits cannot be displayed on 1 screen of the

displays

70 and 72, scrolling or displaying characters in a reduced size is performed.

In step S11, when the timer count of the control unit 50 exceeds the 2 nd reference time b seconds, the process proceeds to step S15 (yes), and when the timer count does not exceed the reference time b seconds, the process proceeds to step S12 (no).

In step S12, when the key 4 is returned to the neutral position, the control unit 50 proceeds to step S13 (yes), and returns to step S11 (no) when the key is not returned to the neutral position.

In step S13, control unit 50 turns off operation information 1 displayed on

displays

70 and 72, and the process proceeds to step S14. That is, all are extinguished as shown in fig. 4.

In step S14, the control unit 50 stops the timer counting and resets, and ends the processing of displaying the operation information or returns to step S1.

In step S15, since the key 4 is held for the 2 nd reference time b seconds or longer, the control unit 50 displays the operation information 2 (the number of ascending operations) on the

displays

70 and 72, and proceeds to step S16. That is, as shown in fig. 4, it is displayed as "UP Count 890". In this case, when the number of digits of the operation count is large and all the operations cannot be displayed on 1 screen of the

displays

70 and 72, scroll display or display of characters in a reduced size is performed.

In step S16, when the timer count of the control unit 50 exceeds the 3 rd reference time c seconds, the process proceeds to step S20 (yes), and when the timer count does not exceed the 3 rd reference time c seconds, the process proceeds to step S17 (no).

In step S17, when the key 4 is returned to the neutral position, the control unit 50 proceeds to step S18 (yes), and returns to step S16 (no) when the key is not returned to the neutral position.

In step S18, the control unit 50 turns off the operation information 2 displayed on the

displays

70 and 72, and the process proceeds to step S19. That is, all are extinguished as shown in fig. 4.

In step S19, the control unit 50 stops the timer counting and resets, and ends the processing of displaying the operation information or returns to step S1.

In step S20, since the key 4 is held for the 3 rd reference time period c seconds or longer, the control unit 50 displays the operation information 3 (the number of failures during the up operation) on the

displays

70 and 72, and the process proceeds to step S21. That is, as shown in fig. 4, it is shown as "ER Count 16".

In step S21, when the timer count of the control unit 50 exceeds the 4 th reference time d seconds, the process proceeds to step S25 (yes), and when the timer count does not exceed the 4 th reference time d seconds, the process proceeds to step S22 (no).

In step S22, when the key 4 is returned to the neutral position, the control unit 50 proceeds to step S23 (yes), and returns to step S21 (no) when the key is not returned to the neutral position.

In step S23, control unit 50 turns off operation information 3 displayed on

displays

70 and 72, and the process proceeds to step S24. That is, all are extinguished as shown in fig. 4.

In step S24, the control unit 50 stops the timer counting and resets, and ends the processing of displaying the operation information or returns to step S1.

In step S25, the control unit 50 sets the count of the timer to a seconds again, and returns to step S3. This is because the key 4 is continuously operated in the operation key switch 74, and therefore, the display is returned to the operation information 1 again to cycle the display.

As described above, the manager inserts the key 4 into the key hole 74b of the operation key switch 74 and turns the key to the ascending side, so that not only the escalator 10 is ascended for operation, but also different operation information is displayed on the

displays

70 and 72 according to the time for holding the turned key 4. Further, since the operation information is displayed on the

displays

70 and 72 located near the

operation panels

52 and 56, the administrator can immediately recognize the information.

(5) Reset handling of run information

The case of resetting (deleting) the operation information stored in the control unit 50 will be described with reference to the flowcharts of fig. 5, 9, and 10. When resetting of the operation information is performed, a progress bar 71 is displayed below the

displays

70 and 72 together with "DEL" indicating that resetting of the operation information is performed. The progress bar 71 indicates the remaining time until the reset is actually started, and in fig. 5, if all the progress bars 71 are black, the reset is started.

In step S101, when the key 4 is inserted into the key hole 76b of the operation stop key switch 76 by the administrator and the key 4 is turned, the process proceeds to step S102 (yes), and if not turned, the state of step S101 is continued (no).

In step S102, when the escalator 10 is in the ascending or descending operation, the process proceeds to step S103 (yes), and when the escalator is stopped, the process proceeds to step S105 (no).

In step S103, the control unit 50 stops the operation of the escalator 10, and the process proceeds to step S104.

In step S104, the control unit 50 turns off the arrow displayed in the operation direction of the

displays

70 and 72 and the entry prohibition x, and the process proceeds to step S105.

In step S105, the control unit 50 starts counting by a built-in timer after the escalator 10 stops, and the process proceeds to step S106. The timer counts a stop confirmation time x and a stop reference time y (where y > x) for confirming whether a manager intends to stop only the escalator 10 or to reset both the stop and operation information of the escalator 10.

In step S106, the control unit 50 proceeds to step S109 when the timer count exceeds the stop confirmation time x seconds (yes), and proceeds to step S107 when the timer count does not exceed the stop confirmation time x seconds (no).

In step S108, if the key 4 returns to the neutral state, the process proceeds to step S108, and if not, the process returns to step S106 (in the case of no). That is, if the key 4 is returned to the neutral position, it can be determined that the manager has stopped only the escalator 10 and has not reset the operation information.

In step S107, the manager stops only the escalator 10, and since the escalator 10 has already stopped, the control unit 50 stops counting the stop confirmation time of the timer and resets the time to end.

In step S109, the timer counts for more than x seconds, and therefore, the timer continues to count. At this time, since it can be determined that the manager has the meaning of resetting the operation information in addition to stopping the escalator 10, the control unit 50 displays a screen for confirming the resetting of the operation information (confirmation of whether or not the data can be reset) on the

displays

70 and 72, and proceeds to step S110. At this time, as shown in fig. 5, display is "DEL? Further, a progress bar is displayed together with the screen for confirming the reset of the operation information, and the time until the reset of the operation information is started is visually displayed. That is, the more the black portion of the progress bar 71 is displayed in a visually recognizable manner, the closer the time until the reset is performed.

In step S110, when the count of the timer exceeds the stop reference time y seconds, the process proceeds to step S114 (yes), and when the count of the timer does not exceed the stop reference time y seconds, the process proceeds to step S111 (no). When the timer count reaches the stop reference time y seconds, the progress bar 71 becomes a black portion in its entirety, showing the start of execution of reset in a visually recognizable manner.

In step S111, the control unit 50 proceeds to step S112 if the key 4 returns to the neutral position (in the case of yes), and proceeds to step S110 if it does not return (in the case of no). That is, if the key 4 is returned to the neutral position, it can be determined that the manager has stopped only the escalator 10 and has not reset the operation information.

In step S112, since the key 4 is returned to the neutral position, the control unit 50 turns off the reset confirmation screen of the

displays

70 and 72, and the process proceeds to step S113. That is, all lights are turned off as shown in fig. 5.

In step S113, the control unit 50 stops the timer counting and resets, and ends.

In step S114, since the timer count exceeds the stop reference time y seconds, the control unit 50 can determine that the manager has the meaning of resetting the operation information in addition to stopping the escalator 10, and thus the control unit stops the timer count, resets the timer count, and proceeds to step S115. Further, the progress bar 71 is entirely a black portion.

In step S115, the control unit 50 starts execution of resetting (deleting) all pieces of operation information data, and the process proceeds to step S116. As shown in fig. 5, the progress bar is increased along with the screen of the reset execution of the operation information, and the remaining time until the reset is completed is displayed.

In step S116, the reset-completed screen is displayed on the

displays

70 and 72, and the process proceeds to step S117. That is, as shown in FIG. 5, it is displayed as "DEL! ". In addition, the progress bar 71 maintains the entire black portion.

In step S117, if the key 4 returns to the neutral state, the control unit 50 proceeds to step S118 (in the case of yes), and continues step S117 unless the return is made (in the case of no).

In step S118, since the key 4 is returned to the neutral state, the control unit 50 turns off the reset completion screen displayed on the

displays

70 and 72, and ends the process. That is, all lights are turned off as shown in fig. 5.

As described above, when the operation information is reset, the operation stop key switch 76 is rotated by the key 4, and after the escalator 10 is stopped, the operation information is displayed on the

displays

70 and 72 only when the key 4 is held at the position, and then the operation information is reset only when the key 4 is further held at the stop position, and the reset screen is displayed on the

displays

70 and 72.

(6) Effect

According to the present embodiment, the manager can display the operation time, the operation frequency, and the failure frequency when the key switch 74 is operated to ascend or descend on the

displays

70 and 72 only by inserting the key 4 into the key hole 74b of the key switch 74 and holding the key at the ascending or descending position for a predetermined time or more. In this case, since the display 70 is present in a portion that can be visually recognized by the administrator from the operation panel 52 and the display 72 is present in a portion that can be visually recognized by the administrator from the operation panel 56, the administrator can easily recognize the

displays

70 and 72 while operating the operation key switch 74.

Further, the ascending operation information and the descending operation information can be displayed in a simple manner in the rotational direction of the key 4.

In addition, when the operation information is reset, if the key 4 is inserted into the operation stop key switch 76, rotated, and held for a stop confirmation time or longer, the

display

70, 72 is displayed with confirmation of whether or not the reset is possible, and then, if the key 4 is further held at that position, the operation information is reset. Thus, the operation information is not erroneously reset. In addition, the operation information can be simply reset.

(7) Modification example

In the above embodiment, the operation time, the number of operations, and the number of failures during the ascending or descending are shown as the operation information, but other operation information may be displayed.

In the above embodiment, the operating Time is indicated by Time and the number of operations is indicated by Count, but the difference between the two may be expressed by changing the color of characters.

The operation information may be displayed on the

displays

70 and 72 and output from the

speakers

54 and 58 by the sound synthesizing device.

In addition, in the above-described embodiment, the word "DEL? "display confirmation screen of reset of running information, display execution screen of reset as" DEL! However, the difference between the two may be expressed by changing the color of the characters.

In the above embodiment, the remaining time until the reset is executed is displayed as the progress bar 71 as shown in fig. 5, but instead, it may be displayed as a numeric countdown (countdown).

In the above embodiment, the operation information is displayed on the upper and

lower displays

70 and 72 at the same time, but instead, the operation information may be displayed only on the display 70 on the layer (for example, the upper layer) on which the key is operated.

In the above embodiment, 3 pieces of operation information are displayed, but when 4 or more pieces of operation information are displayed instead, any number of display screens can be accommodated by performing the processing of steps S10 to S14 after step S24.

In the above embodiment, the key 4 is returned to the neutral state in the operation information display processing, and the display of the operation information being displayed is turned off.

In the above embodiment, the operation information is stored only in the control unit 50, but the operation information may be wirelessly transmitted from the storage unit 78 to a portable terminal such as a manager. As the timing of transmission in this case, for example, transmission to a portable terminal held by a manager while the display processing of the operation information is performed is conceivable.

In the above embodiment, the escalator 10 was described, but instead of this, the present invention may be applied to a moving walkway.

Although the embodiment of the present invention has been described above, the embodiment is presented as an example, and is not intended to limit the scope of the invention. These novel embodiments may be implemented in other various ways, and various omissions, substitutions, and changes may be made without departing from the spirit 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 the scope equivalent thereto.

Claims

1. A passenger conveyor having:

a plurality of steps connected in a closed manner;

a drive device that drives the steps;

a control unit of the drive device;

a display unit that displays at least the traveling direction of the steps so as to be visually recognizable to passengers;

an operation unit provided at a visually recognizable portion of the display unit and configured to operate at least a traveling direction, start and stop of the steps; and

a control unit that controls the drive unit in accordance with an operation of the operation unit and displays at least the operation direction on the display unit,

the operation part is provided with an operation key switch,

the operation key switch has a mechanical automatic reset function, when a key is inserted into a key hole of a key cylinder of the operation key switch and the key is rotated to a position indicating an operation direction, the key cylinder is reset to a neutral position by a spring,

the control unit stores operation information indicating an operation state of the passenger conveyor, activates the drive device in response to an operation of the operation key switch, and displays the operation information on the display unit in response to an operation of the operation unit,

the control unit activates the drive device when a state in which the key is rotated to the position indicating the operation direction does not exceed a 1 st reference time a, and displays the operation information on the display unit when a exceeds the 1 st reference time a.

2. The passenger conveyor according to claim 1,

a pair of left and right skirt boards are arranged on two sides of the stair,

a pair of left and right handrails are respectively erected from the pair of left and right skirt boards,

the operating part is arranged on the side surface of the apron board,

the display part is arranged on the front surface of the apron board.

3. The passenger conveyor according to claim 1,

the operation information is an operation time, an operation number or a failure number.

4. The passenger conveyor according to claim 1,

and a control unit configured to display operation information different from the operation information on the display unit when a state in which the key is rotated to a position indicating the operation direction exceeds b, which is a 2 nd reference time, wherein a < b.

5. The passenger conveyor according to claim 4,

the operation part is provided with an operation stop key switch,

the control unit stops the drive device in response to an operation of the operation stop key switch, resets the operation information stored in the control unit, and displays the operation information reset on the display unit.

6. The passenger conveyor according to claim 5,

the key switch has a mechanical automatic return function, and when the key is inserted into a key hole of a key cylinder of the key switch and rotated to a position indicating stop, the key cylinder is returned to a neutral position by a spring.

7. The passenger conveyor according to claim 6,

the control unit resets the operation information when a state in which the key is inserted into the key hole of the key cylinder of the operation stop key switch and rotated to a position indicating the stop is longer than a stop reference time.