JP2017001785A - Passenger conveyor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a passenger conveyor that can predict a failure of a foot step.SOLUTION: The passenger conveyor includes: a first detection part 316 provided in the foot step 30 to output a first detection signal when a passenger boards on the foot step 30; a storage part 66 storing a failure state of the foot step 30 corresponding to the number of times of passengers boarding on the foot step 30; and a control part 100 for calculating the number of times of boarding based on the input first detection signal to call up a failure state from the storage part 66 corresponding to the calculated number of times of boarding.SELECTED DRAWING: Figure 3

Description

  Embodiments of the present invention relate to passenger conveyors.

  Conventionally, in the case of a passenger conveyor such as an escalator or a moving walkway, if a drive device or part is broken or damaged, the monitoring device detects the damage with a sensor and stops the operating passenger conveyor and informs maintenance personnel Has been proposed.

JP 2014-80267 A JP-A-8-169679 Japanese Patent No. 4850258

  However, in the passenger conveyor monitoring device as described above, it is detected after failure or breakage, and for passengers, the passenger conveyor suddenly stops or the passenger conveyor is stopped for a long time for repair work There was a problem that had to be made.

  Then, embodiment of this invention aims at providing the passenger conveyor which can predict the failure of the step in a passenger conveyor.

An embodiment of the present invention has a cleat surface on the upper surface of the step frame, a riser surface on the rear surface of the step frame, a pair of left and right front wheels on the front portion of the step frame, and a rear portion of the step frame A step having a pair of left and right rear wheels, a detection unit that is provided on the step and outputs a first detection signal when the passenger gets on the step, and corresponds to the number of times the passenger gets on and off the step And (1) calculating the number of passengers from a predetermined initial time to the present based on the first detection signal input, and (2) the calculated passenger A control unit that calls the failure state corresponding to the number of times from the storage unit;
And an output unit that outputs the called failure state.

The side view of the escalator of Embodiment 1. FIG. The perspective view of a step. The longitudinal cross-sectional view seen from the back of a step. The longitudinal cross-sectional view of the state where the passenger got on the step. The longitudinal cross-sectional view of the state where the passenger got off from the step. Block diagram of the escalator. Information stored in the storage unit. The graph which shows the relationship between Ga (t) and time. The longitudinal cross-sectional view of the step of Embodiment 2. FIG. The longitudinal cross-sectional view of the state where the passenger got on the step. The longitudinal cross-sectional view of the state where the passenger got off the step. The longitudinal cross-sectional view when an impact is added to a step. FIG. 10 is a longitudinal sectional view of a step according to the third embodiment. The perspective view of the step of Embodiment 4. FIG. The longitudinal cross-sectional view of a step.

  Hereinafter, an escalator 10 according to an embodiment of the present invention will be described with reference to the drawings.

Embodiment 1

  The escalator 10 of Embodiment 1 of this invention is demonstrated based on FIGS.

(1) Escalator 10
The structure of the escalator 10 will be described with reference to FIG. FIG. 1 is an explanatory view of the escalator 10 as seen from the side.

  A truss 12 that is a framework of the escalator 10 is supported using support angles 2 and 3 across the upper and lower floors of the building 1.

  Inside the upper floor side machine room 14 at the upper end of the truss 12, a drive unit 18 for running the steps 30 is provided. The drive device 18 stops and stops the rotation of the motor 20, the speed reducer, the output sprocket attached to the output shaft of the speed reducer, the drive chain 22 driven by the output sprocket, and the motor 20. And a disc brake for maintaining the state. The drive sprocket 24 is rotated by the drive chain 22. A control device 50 for controlling the motor 20, the disc brake, and the like is provided in the machine room 14 on the upper floor side.

  A driven sprocket 26 is provided inside the lower floor machine room 16 at the lower end of the truss 12. Between the driving sprocket 24 on the upper floor side and the driven sprocket 26 on the lower floor side, a pair of left and right endless step chains 28 and 28 are suspended. A plurality of steps 30 are attached to the pair of left and right step chains 28, 28 at equal intervals. When the motor 20 rotates, the wheel 301 of the step 30 travels on a guide rail (not shown) fixed to the truss 12, and the wheel 302 travels on the guide rail 25 fixed to the truss 12.

  On the left and right sides of the truss 12, a pair of left and right balustrades 36, 36 are erected. A handrail is provided above the balustrade 36, and the handrail belt 38 moves in synchronization with the step 30 along the handrail. A front skirt guard 40 on the upper floor side is provided in the lower front part on the upper floor side of the balustrade 36, and a front skirt guard 42 on the lower floor side is provided in the lower front part on the lower floor side. Inlet portions 46 and 48, which are entrances and exits of the handrail belt 38, protrude from each other. A skirt guard 44 is provided at the lower side of the balustrade 36, and the step 30 travels between the pair of left and right skirt guards 44, 44. Operation panels 52 and 56 and speakers 54 and 58 are provided on the inner side surfaces of the skirt guards 44 on the upper and lower floors, respectively.

  An entrance / exit of a pair of left and right skirt guards 44, 44 on the upper floor side, and the upper floor side entrance / exit plate 32 is horizontally provided on the ceiling surface of the machine room 14. The lower floor side entrance / exit board 34 is provided on the ceiling surface of the machine room 16 and is provided horizontally. A comb-like comb 60 is provided at the front end of the upper floor board 32, and the step 30 enters the comb 60. A comb-like comb 62 is also provided at the tip of the lower floor board 34.

(2) Step 30
Next, the step 30 will be described with reference to FIGS.

  As shown in FIG. 2, the step 30 includes a pair of left and right side stepped triangular frames 303, a cleat surface 304 provided on the upper surface of the step frame 303, a riser surface 305 provided on the rear surface of the step frame 303, A pair of left and right front wheels 301 provided at the front portion of the step frame 303 and a pair of left and right rear wheels 302 are provided at the lower rear portion of the step frame 303, that is, at the lower portion of the riser surface 305. The pair of left and right front wheels 301, 301 are connected by a single axle 306, and the pair of left and right front wheels 301, 301 rotate via bearings (not shown) at both left and right ends of the axle 306. The pair of left and right rear wheels 302 and 302 are connected to independent axles 307 and 307, respectively, and the rear wheel 302 rotates via a bearing (not shown). In the vertical direction of the riser surface 305, peaks and valleys are alternately formed.

  As shown in FIG. 3, a concave portion having a rectangular planar shape is formed at the center portion of the cleat surface 304, and a detection plate 309 is arranged in the concave portion 308 so as to be movable up and down. The cleat surface 304 and the detection plate 309 are substantially on the same surface, and a crest and a trough are formed on the upper surface of the detection plate 309 along the front-rear direction. As shown in FIG. 3, a connecting plate 310 extends vertically from the right end portion of the detection plate 309, and a horizontal moving plate 311 is formed from the lower end of the connecting plate 310 toward the left side. That is, as shown in FIG. 3, the detection plate 309, the connecting plate 310, and the moving plate 311 are formed in a U shape, and these components are collectively referred to as “detection upper and lower members 33” below.

  The support plate 312 protrudes horizontally from the left side surface of the recess 308 toward the right side, and the support plate 312 is disposed between the detection plate 309 and the moving plate 311.

  A plurality of coiled upper springs 313 are provided between the detection plate 309 and the support plate 312, and support the detection plate 309 horizontally above the support plate 312 so as to be movable up and down.

  A plurality of coiled lower springs 315 are provided between the bottom 314 of the recess 308 and the moving plate 311, and horizontally support the moving plate 311 so as to move up and down.

  The elastic coefficient of the upper spring 313 is set so that, for example, the detection plate 309 moves downward when an adult human or child rides, and the elastic coefficient of the lower spring 315 is the detection plate 309 when the passenger gets down. Is set to an elastic coefficient that can move on the same plane as the cleat surface 304. 3 to 5, the detection plate 309 is described as moving greatly. However, this is for easy understanding, and actually it is only about 1 mm to 2 mm lowering, It is formed so that there is almost no step between the cleat surface 304 and the detection plate 309.

  A first detection unit 316 is provided on the bottom 314 of the recess 305. The first detection unit 316 includes a piezoelectric element, and includes an upward switch unit 317, a power generation unit 318, and a transmission unit 319. When the moving plate 311 of the detection upper and lower member 33 moves downward and the switch unit 317 is pressed, the power generation unit 318 generates power by the pressing force and outputs a first detection signal from the transmission unit 319.

  The second detection unit 320 is provided on the lower surface of the support plate 312. The second detection unit 320 also includes a piezoelectric element, and includes a downward switch unit 321, a power generation unit 322, and a transmission unit 323. When the moving plate 311 of the detection upper / lower member 33 moves upward and the switch unit 321 is pressed by the moving plate 311, the power generation unit 318 generates power by the pressing force, and the second detection signal is transmitted from the transmission unit 323. Is output.

  In addition, the first detection unit 316 and the second detection unit 320 are respectively provided in all N connected steps 30 in an endless manner, and identification information is given to each step 30, and the first detection unit 316 is provided. And when the 2nd detection part 320 transmits a 1st detection signal and a 2nd detection signal, this identification information is also transmitted simultaneously. For example, the identification information is number a, and 1 <= a <= N.

  FIG. 3 is a cross-sectional view seen from the rear of the step 30 in a state where no passenger is on the step 30. In the initial state of the detection upper and lower member 33 balanced between the upper spring 313 and the lower spring 315, the first detection unit 316 is not operating.

  FIG. 4 is a vertical cross-sectional view of a state where a passenger is on the step 30. The detection plate 309 moves downward against the elastic force of the upper spring 313 due to the weight of the passenger, and the upward switch portion 317 of the first detection portion 316 is pushed by the lower surface of the movement plate 311. The first detection signal and identification information indicating that a passenger has boarded are output from the first detection unit 316.

  FIG. 5 is a vertical cross-sectional view of the passenger 30 getting off the step 30. Since the passenger has descended, the moving plate 311 is moved upward by the elastic force of the lower spring 315, and the downward switch portion 321 of the second detection unit 320 is pushed by the upper surface of the moving plate 311 to indicate that the passenger has descended. A detection signal and identification information are output. Thereafter, a balance is established between the upper spring 313 and the lower spring 315, and the detection upper and lower members 33 return to the initial state of FIG.

(3) Electrical Configuration of Escalator 10 Next, the electrical configuration of the escalator 10 will be described based on the block diagram of FIG. The control unit 60 accommodated in the control device 50 includes a drive circuit 62 that drives the motor 20, a safety device 64, a storage unit 66 such as a ROM or a hard disk, a reception unit 68, a communication unit 70, an operation panel 52, and a speaker 54. An operation panel 56 and a speaker 58 are connected. The reception unit 68 includes a first detection signal and identification information transmitted from the transmission unit 319 of the first detection unit 316 provided in the step 30, and a second detection signal transmitted from the transmission unit 323 of the second detection unit 320. Receive identification information.

  As the safety device 64, a skirt guard pinched detection device provided in the skirt guard 44, an inlet pinched detection device provided in the inlet portions 46 and 48, a step lift detection device provided in the guide rail 25, an emergency stop button Etc. The skirt guard pinching detection device is a device that detects that a foreign object (for example, clothes or luggage) is pinched between the skirt guard 44 and the step 30, and the inlet pinching detection device is a handrail belt 38. Is a device that detects when a foreign object (for example, a passenger's hand or baggage) is simultaneously drawn into the inlet part 46 or the inlet part 48.

  The storage unit 66 stores the set number of boarding / departing times and the set use time until failure of the parts related to the step 30 as shown in the table of FIG. The state in which the step 30 fails is, for example, damage to the bearing of the front wheel 301, damage to the bearing of the rear wheel 302, wear of the front wheel 301, wear of the rear wheel 302, damage to the axle 306 of the front wheel 301, axle 307 of the rear wheel 302. Damage, such as chipping on the riser surface 305, and chipping on the cleat surface 304. The number of times passengers get on and off and the usage time until they are damaged or worn out are obtained in advance by experiment, and the storage unit 66 stores the set number of times of getting on and off and the set usage time, which are safety values slightly before this damage or wear does not occur. doing. For example, as damage to the bearing of the front wheel 301, the passenger's set number of times of getting on and off is 1 million times, and the set use time is 44000 hours. This number and time are merely examples.

  The communication unit 70 communicates wirelessly or by wire with a monitoring device 72 that is monitored by maintenance personnel provided outside the building 1, a prediction signal for predicting a failure of a part of the step 30, and congestion indicating the degree of congestion of the escalator 10. A signal, a gait caution signal when the passenger is cautious of walking or running, and an emergency stop signal are output to the monitoring device 72 when the safety device 64 is operated to make an emergency stop.

(4) First Failure Prediction Control Method Next, a first failure prediction control method in which the control unit 60 predicts a failure of each step 30 will be described. The “number of times of getting on and off” means the number of times of getting on and off from the initial time when the escalator 10 is installed for the first time or from the initial time when the parts were replaced last time. Different.

  1stly, when an escalator starts a driving | operation and the passenger gets on the step 30, the 1st detection part 316 of the detection upper-lower member 33 transmits a 1st detection signal and identification information. All the steps 30 do this.

  Secondly, the receiving unit 68 of the control unit 100 receives the first detection unit 316 and the identification information from all the steps 30, and stores the number of times of input of the first detection signal for each identification information of the step 30 in the storage unit 66. Remember. The number of times the first detection signal is input is the number of passengers getting on and off the step 30 having the identification information.

  Thirdly, when the control unit 100 monitors the number of times of getting on and off of each step 30 and reaches any set number of times of getting on and off stored in the storage unit 66 (see FIG. 7), the control unit 100 The failure part name is called from 66, and a prediction signal indicating that the part fails is output to the monitoring device 72 via the communication unit 70. For example, “the axle 306 of the front wheel 301 of the step 30 with the identification number a may be damaged”.

  Fourth, the maintenance staff monitoring the escalator 10 by the monitoring device 72 visits the site at the time of the next inspection work or immediately, based on the contents of the prediction signal, and determines the step 30 with the identification number a. The axle 306 of the front wheel 301 is replaced.

  Fifth, when the maintenance person replaces a part, the number of times of boarding / exiting that part of the step 30 is reset.

  Thus, the parts of the step 30 can be replaced before being damaged or worn, and the escalator 10 does not stop for a long time due to a failure.

(5) Second Failure Prediction Control Method Next, a second failure prediction control method for the step 30 performed by the control unit 100 will be described.

  In the first failure prediction control method, a failure is predicted based on the number of times of getting on and off the step 30, but in the second failure prediction control method, the failure is predicted based on the usage time of the escalator 10. This “use time” means the time from when the escalator 10 is first installed or the time from when a part was replaced last time. When the part replacement time is different, the use time is different for each part.

  First, the escalator 10 starts operation, and the control unit 100 measures the usage time of each component of the step 3.

  Secondly, when the usage time counted for any set usage time stored in the storage unit 66 is reached for the component of one step 30 (see FIG. 7), the control unit 100 A prediction signal indicating that a component has failed is output to the monitoring device 72 via the communication unit 70. For example, “the axle 306 of the front wheel 301 with the identification number a may be damaged”.

  Third, the maintenance staff monitoring the escalator 10 by the monitoring device 72 visits the site at the time of the next inspection work or immediately based on the contents of the prediction signal, and sets the step 30 with the identification number a. The axle 306 of the front wheel 301 is replaced.

  Fourthly, when the maintenance staff replaces a part, the usage time for that part of the step 30 is reset.

  Thus, the parts of the step 30 can be replaced before being damaged or worn, and the escalator 10 does not stop for a long time due to a failure.

(6) Congestion Level Calculation Method Next, a method in which the control unit 100 calculates the current congestion level of the escalator 10 will be described with reference to FIG.

At a certain time t (for example, 2:00 pm), the control unit 100 considers a function Ga (t) that is 1 if a passenger gets on the step 30 of the identification information a and 0 if no passenger is on the vehicle. (1) Set according to equation (2).

Ga (t) = 1 (passenger is on board) (1)

Ga (t) = 0 (passenger, no load) (2)

  The graph of FIG. 8 is a graph showing the time change of Ga (t). At this time, if Ga (t) is integrated in a certain sampling ΔT interval and divided by ΔT, the average value of Ga (t) during ΔT. Is obtained. The area of the hatched portion in the graph of FIG. 8 represents a value obtained by integrating Ga (t) in a certain sampling ΔT interval, and the height of the hatched portion corresponds to the average value of Ga (t) during ΔT. This average value is added for all the steps 30 and is set as α as shown in the equation (3). This α is defined as the degree of congestion.

  The control unit 100 calculates the degree of congestion α and changes the control method of the escalator 10. For example, if the degree of congestion α is equal to or greater than a predetermined value, a congestion signal indicating a very crowded state is transmitted to the monitoring device 72, or the operating speed of the escalator 10 is increased in order to reduce the load on the escalator 10 and increase the transportation efficiency. To raise.

(7) Walking detection method Next, a method in which the control unit 100 detects the walking or running of a passenger who rides on the step 30 will be described.

  As described above, the first detection unit 316 transmits a first transmission signal when a passenger gets on the step 30, and the second detection unit 320 transmits a second detection signal when the passenger gets off the step 30. . When the passenger is standing still on the step 30, the second detection is performed after the first detection signal is input while the step 30 moves from the lower floor to the upper floor or from the upper floor to the lower floor. No signal is input. However, when the passenger walks or runs up or down the step 30 of the escalator 10, the second detection signal is input within a shorter time than this travel time. In this detection method, detection is performed by paying attention to this point. Note that Ga (t) is the same as in Formula (1) and Formula (2).

  When Ga (t) changes from 1 to 0 or from 0 to 1, the total number of times less than the threshold Thpf during the time t to t + ΔT is set as βa, and all βa of the steps 30 If the sum of β is set as β, Equation (4) is obtained.

  If β is greater than or equal to a certain threshold value, control unit 100 determines that the passenger is walking or running on step 30. When β is equal to or larger than the threshold value, the control unit 100 transmits a walking attention signal to the monitoring device 72 or outputs a warning announcement such as “Please do not walk the escalator” from the speakers 54 and 58.

(8) Effects According to the present embodiment, failure prediction of parts such as the front wheel 301 of each step 30 of the escalator 10 can be performed and transmitted to maintenance personnel. Therefore, there is no stop of the escalator 10 due to a component failure, and the escalator 10 does not stop for a long time for passengers.
Further, the congestion degree α of the escalator 10 can be predicted based on the first detection signal from the first detection unit 316 provided in each step 30.

  Further, based on the first detection signal from the first detection unit 316 provided in each step 30 and the second detection signal from the second detection unit 320, a passenger walking or running on the step 30 can be detected.

Embodiment 2

  Next, the escalator 10 of Embodiment 2 is demonstrated based on FIGS. 9-12.

  The difference between the present embodiment and the first embodiment is that a third detection unit 324 is provided on the step 30 in addition to the first detection unit 316 and the second detection unit 320.

  In the present embodiment, the support plate 312 is not provided on the left side surface of the recess 308, and the U-shaped impact upper / lower member 35 is disposed so as to engage with the U-shaped detection upper / lower member 33. The impact upper / lower member 35 includes a lower detection plate 328 disposed between the detection plate 309 and the moving plate 311, a lower connection plate 329 provided in the vertical direction from the left end portion of the lower detection plate 328, and a bottom portion of the recess 308. The lower moving plate 330 is disposed between the moving plate 311 and the moving plate 311 and protrudes horizontally from the lower end of the lower connecting plate 329.

  A coiled upper spring 331 is attached between the detection plate 309 and the lower detection plate 328, a coiled middle spring 332 is attached between the moving plate 311 and the lower moving plate 330, and a coiled lower spring 333 is attached. Is attached between the lower moving plate 330 and the bottom 314.

  The first detection unit 316 is provided on the upper surface of the lower moving plate 330, the second detection unit 320 is provided on the lower surface of the lower detection plate, and the third detection unit 324 is provided on the bottom 314.

  As shown in FIG. 9, in the initial state where the passenger is not on the step 30, the detection upper and lower members 33 and the impact upper and lower members 35 are balanced by the upper spring 331, the middle spring 332, and the lower spring 333, and the first detection unit The upward switch unit 317, the downward switch unit 321 of the second detection unit 320, and the upward switch unit 325 of the third detection unit 324 are not pressed.

  As shown in FIG. 10, when the passenger gets on the step 30, the detection plate 309 moves downward against the elastic force of the upper spring 334 and the middle spring 335, and the switch unit 317 of the first detection unit 316 is moved. The power generation unit 318 generates power by the pressing force, and transmits the first detection signal and the identification information from the transmission unit 319. This first detection signal is a signal indicating that a passenger has boarded, as in the first embodiment. It should be noted that the passenger, the upper and lower members 33, and the upper and lower impact members 35 are supported by the elastic force of the lower spring 333 without the lower spring 333 being contracted only by the impact on which the passenger rides. The upward switch portion 325 is not pressed.

  As shown in FIG. 11, when the passenger gets off the step 30, the detection plate 309 moves upward by the elastic force of the upper spring 331 and the middle spring 335, and the switch of the second detection unit 320 is moved by the upper surface of the moving plate 311. The unit 321 is pressed, and the power generation unit 322 generates power by the pressing force, and transmits the second detection signal and the identification information from the transmission unit 323. This 2nd detection signal is a signal which shows that the passenger got down like Embodiment 1. FIG. The detection upper / lower member 33 and the impact upper / lower member 35 are supported by the elastic force of the lower spring 333, and the upward moving switch unit 325 of the third detection unit 324 is not pressed by the lower moving plate 330.

  As shown in FIG. 12, when a large impact force is applied to the step 30 when a passenger is on or not on the step 30, the detection plate 309 is moved downward by the impact force, and the detection plate 309 is moved up and down. The member 33 and the impact upper / lower member 35 move downward against the elastic force of the lower spring 333, and the upward moving switch unit 325 of the third detection unit 324 is pressed by the lower moving plate 330, and the power generation unit 326 is caused by the pressing force. Power generation is performed, and the third detection signal and identification information are transmitted from the transmission unit 327. The third detection signal is a signal indicating that a greater impact force is applied than when the passenger gets on, and is transmitted, for example, when the passenger falls or places a very heavy load.

  The storage unit 66 stores the set impact count as well as the set boarding / alighting count and the set usage time as information for predicting failure. For example, when the set impact count is 10,000, the axle 306 of the front wheel 301 may be damaged. Remember. Then, when the detected number of impacts exceeds the set number of impacts stored in the storage unit 66, the control unit 100 outputs a failure prediction signal to the monitoring device 72 as a failure is predicted.

  When the third detection signal is continuously input from a plurality of consecutive steps 30 within a predetermined time (for example, within 5 seconds), the control unit 100 determines that the passenger has fallen, and sets the escalator 10 to A warning announcement is output from the speakers 54 and 58, and a warning signal is output to the monitoring device 72.

Embodiment 3

  Next, the escalator 10 of Embodiment 3 is demonstrated based on FIG.

  The present embodiment is a modification of the first embodiment, and the difference is in the first detection unit 316 and the second detection unit 320. In the present embodiment, as shown in FIG. 13, the first detection unit 316 includes a switch unit 340, an RFID reader / writer (hereinafter simply referred to as “reader / writer”) 341, and an RF tag (hereinafter simply referred to as “tag”) 342. The switch part 340 is a power generation body (piezoelectric element) and converts mechanical energy into electrical energy when pressed. When the switch unit 340 is pressed, the first detection unit 316 generates electric power by the pressing force, outputs a first detection signal, and uses the read / dryer 341 to output the first detection signal and the identification information to the tag 342. Remember. The number of operations is obtained by adding 1 to the stored number of times. The second detection unit 320 has a similar structure.

  The machine room 14 or the machine room 16 is provided with an RF reader (not shown) that reads information from the tag 342. As a result, the RF reader reads the number of times of getting on and off and the identification information while the step 30 goes around from the tag 342, and detects the number of times passengers got on and the number of times passengers got off.

  Note that the third detection unit 324 in the second embodiment may also have the same structure.

Embodiment 4

  Next, the escalator 10 of Embodiment 4 is demonstrated based on FIG. 14 and FIG.

  The difference between the present embodiment and the first embodiment is that the width of the step 30 is large and detection plates 309 and 309 are provided on the left and right in this embodiment.

  According to this embodiment, information on passengers riding on the right side and passengers riding on the left side of the step 30 can be collected, and a failure of only the front wheel 301 on the left side or a failure of the rear wheel 302 on the right side can be predicted. That is, the control unit 100 counts the number of times of getting on and off the left passenger and the number of times of getting on and off of the right passenger, and compares the set number of times of getting on and off and the set usage time stored in FIG.

Example of change

  In the above-described embodiment, the first detection unit 316, the second detection unit 320, and the like are provided in all the steps 30, but not limited thereto, the first detection unit 316 is included in several steps 30 of the N steps 30. Etc., a failure may be predicted for the provided step 30, and if a failure is predicted, all the components of the step 30 may be replaced.

  Further, in the above embodiment, the description has been made by adapting to the step 30 of the escalator 10, but instead of this, it may be adapted to a step (step) of a moving sidewalk.

  Although one embodiment of the present invention has been described above, this embodiment is presented as an example and is not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can 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 equivalents thereof.

DESCRIPTION OF SYMBOLS 10 ... Escalator, 30 ... Step, 100 ... Control part, 301 ... Front wheel, 302 ... Rear wheel, 303 ... Step frame, 304 ... Cleat surface, 305 ... Riser surface, 306 ... front wheel axle, 307 rear wheel axle, 308 ... recess, 309 ... detection plate, 316 ... first detector, 320 ... second detector

An embodiment of the present invention has a cleat surface on the upper surface of the step frame, a riser surface on the rear surface of the step frame, a pair of left and right front wheels on the front portion of the step frame, and a rear portion of the step frame and the step having a rear wheel pair of left and right, provided in the footstep, a detection unit for outputting a first detection signal when a customer riding on the footstep rode, corresponding to passenger number of the passengers to the footstep And (1) calculating the number of times of boarding / exiting from a predetermined initial time to the present based on the first detection signal inputted, and (2) calculating the boarding / alighting A passenger conveyor comprising: a control unit that calls the failure state corresponding to the number of times from the storage unit; and an output unit that outputs the called failure state.

Claims (10)

The upper surface of the step frame has a cleat surface, the rear surface of the step frame has a riser surface, the front portion of the step frame has a pair of left and right front wheels, and the rear portion of the step frame has a pair of left and right rear wheels. The steps I had,
A detection unit provided on the step and outputting a first detection signal when the passenger gets on the step;
A storage unit that stores a failure state of the step corresponding to the number of times the passenger gets on and off the step;
(1) Based on the input first detection signal, the number of passengers from a predetermined initial time to the present is calculated, and (2) the failure state corresponding to the calculated number of passengers is called from the storage unit And
An output unit for outputting the called failure state;
Passenger conveyor characterized by having. The storage unit stores a failure state of the step corresponding to a usage time from the initial time to the present time,
The control unit calls the failure state corresponding to the usage time from the storage unit,
The passenger conveyor according to claim 1. The failure state includes wear of the front wheel of the step, breakage of the bearing of the front wheel, breakage of the axle of the front wheel, wear of the rear wheel, breakage of the bearing of the rear wheel, breakage of the axle of the rear wheel, the riser Damage to the surface, or damage to the cleat surface,
The passenger conveyor according to claim 1. N of the steps are connected endlessly,
Identification information is assigned to each step, and the detection unit of each step transmits the identification information of the step together with the first detection signal,
The control unit calculates the number of passengers for each identification information, and calls the failure state corresponding to the number of passengers for each identification information from the storage unit,
The passenger conveyor according to claim 1. The control unit calculates the degree of congestion within a predetermined time from the presence or absence of the passengers in a plurality of the steps,
The passenger conveyor according to claim 4. A detection plate that is movable up and down is provided on the cleat surface of the step,
The detection unit outputs the first detection signal when the passenger gets on the step and the detection plate moves downward.
The passenger conveyor according to claim 1. The detection unit outputs the second detection signal when the passenger gets down and the detection plate moves upward after outputting the first detection signal,
The control unit determines that the passenger is walking or running when the time from when the first detection signal is input to when the second detection signal is input is shorter than a predetermined time.
The passenger conveyor according to claim 6. The detection unit outputs a third detection signal when the detection plate moves downward with a force more than when the passenger gets on,
The controller determines that the step has an impact when the third detection signal is input from the step;
The passenger conveyor according to claim 6. The control unit determines that the passenger has fallen when the third detection signal is input from a plurality of consecutive steps.
The passenger conveyor according to claim 8. The detection unit includes a switch, a power generation unit, and a transmission unit that outputs the first detection signal,
When the switch is pressed by the detection plate, the power generation unit generates power by the pressed force, and outputs the first detection signal from the transmission unit,
The passenger conveyor according to claim 6.

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