Passenger conveyor inspection system and passenger conveyor inspection method

Abstract

To provide a passenger conveyor inspection system and a passenger conveyor inspection method capable of accurately and efficiently identifying a portion where abnormal noise (vibration) occurs without relying on operator's ears and experience.SOLUTION: A passenger conveyor inspection system 100 includes vibration sensors 101b, 101c, 101d, 101e, 101f, 101g and an arithmetic device 102. The vibration sensors 101b, 101c, 101d, 101e, 101f, 101g are mounted on non-movable portions 14, 15 that are not movable in a passenger conveyor 1 to detect vibration of the non-movable portions 14, 15. The arithmetic device 102 acquires vibration information detected by the vibration sensors 101b, 101c, 101d, 101e, 101f, 101g, performs signal processing with respect to the vibration information, and outputs a signal.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a passenger conveyor inspection system and a passenger conveyor inspection method. [Background technology]

[0002] To ensure safety and comfort, passenger conveyors such as escalators and moving walkways are inspected after assembly and on-site construction to check for abnormal sounds (abnormal vibrations).During the inspection, the location of the abnormal sound is identified and adjustments are made to eliminate friction between the circulating steps and various mounting components (combs, step guide rails, skirt guards, etc.) and unevenness in the rails on which the steps run.However, the inspection environment in the factory where the inspection is performed is not necessarily quiet, making it difficult to distinguish between ambient noise and abnormal sounds.

[0003] Furthermore, passenger conveyor inspections rely on the ears and experience of the workers, so the level of skill of the workers affects the inspection results.

[0004] Furthermore, a technology for inspecting passenger conveyors is disclosed, for example, in Patent Document 1. Patent Document 1 describes an inspection device equipped with an acceleration sensor, a microphone, an information recording device, and a processing device. The information recording device records information from the acceleration sensor and the microphone as a vibration signal and a sound signal, respectively. The processing device has a section identification unit, a statistical feature calculation unit that calculates the average amplitude, kurtosis, and step period component of the vibration signal and the sound signal as statistical features based on the information from the information recording device and the section identification unit, and a determination unit that determines whether or not there is an abnormality in the passenger conveyor. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Laid-Open No. 2007-8709 Summary of the Invention [Problem to be solved by the invention]

[0006] However, in the technology described in Patent Document 1, acceleration sensors are installed only on the steps, which are movable parts. Therefore, if the source of abnormal sound (vibration) is not on the step but on a mounting member (non-movable part) such as a comb or step guide rail, the generated vibration is not necessarily transmitted sufficiently to the step. Furthermore, even if vibration is transmitted from a non-movable part to the step, the vibration is attenuated by the structure of the step itself. Therefore, the technology described in Patent Document 1 has the problem of making it difficult to accurately detect abnormal sound (vibration) and identify the abnormal part of the passenger conveyor.

[0007] Furthermore, because motors and reducers are installed in the upper and lower terminals of the passenger conveyor, there is also the problem of difficulty in distinguishing between vibrations of the motors and reducers and abnormal sounds. Furthermore, there are many locations along the path of the moving steps, which are movable parts, where friction or unevenness may occur, such as when the steps pass over step guide rails or combs, or when the steps turn around at the upper or lower terminals. Therefore, with the technology described in Patent Document 1, in which acceleration sensors are installed only on the steps, it is even more difficult to identify the source of abnormal sounds (vibrations).

[0008] In consideration of the above problems, the present invention provides a passenger conveyor inspection system and a passenger conveyor inspection method that can accurately and efficiently identify the source of abnormal sounds (vibrations) without relying on the ears or experience of an operator. [Means for solving the problem]

[0009] To solve the above problems, a passenger conveyor inspection system for inspecting a passenger conveyor includes a vibration sensor and a computing device. The vibration sensor is attached to a non-moving part of the passenger conveyor that does not move and detects vibrations of the non-moving part. The computing device acquires vibration information detected by the vibration sensor, performs signal processing on the vibration information, and outputs the signal.

[0010] The passenger conveyor inspection method includes the following processes (1) and (2). (1) A process of detecting vibrations of a non-moving part of a passenger conveyor using a vibration sensor attached to the non-moving part. (2) A process in which the computing device acquires vibration information detected by the vibration sensor, performs signal processing on the vibration information, and outputs the result. [Effects of the Invention]

[0011] According to the passenger conveyor inspection system and passenger conveyor inspection method configured as described above, the location where an abnormal sound (vibration) is occurring can be identified accurately and efficiently without relying on the ears or experience of an operator. [Brief explanation of the drawings]

[0012] [Figure 1] 1 is a schematic diagram illustrating a configuration example of a passenger conveyor in which a passenger conveyor inspection system according to an embodiment is used; [Figure 2] This is a plan view of the area around the passenger conveyor boarding and alighting floor from above. [Figure 3] FIG. 10 is a side cross-sectional view showing the steps of the passenger conveyor, illustrating the position of the steps at the middle part of the frame. [Figure 4] 1 is a system configuration diagram showing a passenger conveyor inspection system according to an embodiment. [Figure 5] 1 is a diagram showing the state in which a vibration sensor of a passenger conveyor inspection system according to an embodiment is installed, showing the entire passenger conveyor. FIG. [Figure 6] 1 is a diagram showing the state in which a vibration sensor of a passenger conveyor inspection system according to an embodiment is installed, showing the area around the boarding / alighting floor. FIG. [Figure 7] 1 is a flowchart showing a passenger conveyor inspection method using the passenger conveyor inspection system according to an embodiment. [Figure 8]10 is an example of a graph showing part of vibration information in the passenger conveyor inspection system according to the embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, embodiments of a passenger conveyor inspection system and a passenger conveyor inspection method will be described with reference to Fig. 1 to Fig. 8. Note that common members in the figures are given the same reference numerals.

[0014] 1. Example of implementation 1-1. Example of passenger conveyor configuration First, the configuration of a passenger conveyor in which a passenger conveyor inspection system according to an embodiment (hereinafter referred to as "this example") is used will be described with reference to FIGS. 1 to 3. FIG. FIG. 1 is a schematic diagram showing the configuration of a passenger conveyor.

[0015] The passenger conveyor 1 shown in Figure 1 is an inclined passenger conveyor, commonly known as an escalator, installed on the upper and lower floors of a building structure. The passenger conveyor 1 is assembled in a factory as a single unit (parapets 3 and particularly long, large parts are separated) as shown in Figure 1, and then transported to the construction site and installed. As shown in Figure 1, the passenger conveyor 1 includes a boarding / alighting floor 11, a frame 12 installed on the building structure, handrails 2, parapets 3, a skirt guard 4, a plurality of steps 5, the handrails 2, and a drive unit 10. The passenger conveyor 1 also includes a drive-side terminal gear 6, a driven-side terminal gear 7, and a step chain 13.

[0016] The boarding / alighting floors 11 are arranged on the upper and lower floors of a building structure. Passengers get on and off from the boarding / alighting floors 11. Figure 2 is a plan view of the boarding / alighting floor 11 and its surroundings seen from above. As shown in Figure 2, a comb 14 is provided between the boarding / alighting floor 11 and the circulating step 5. The comb 14 is fixed to the tip of the boarding / alighting floor 11 on the step 5 side.

[0017] Step guide rails 15 are fixed to the frame 12 near the boarding / alighting floor 11. The step guide rails 15 are arranged on both sides of the step 5 in the width direction and are attached to the frame 12 so as to sandwich the step 5. The step guide rails 15 guide step guides 21 of the step 5, which will be described later, and position the step 5 in the width direction (Y direction). This allows the step 5 to pass under the comb 14 without interference. The step guide rails 15 are installed so that, in a steady state, there is a gap of about several millimeters between them and the step guides 21 in the width direction (Y direction).

[0018] The comb 14 and the step guide rail 15 are disposed at an upper terminal 24 and a lower terminal 25 of the frame 12 .

[0019] The frame 12 is disposed straddling the upper entrance floor 11 and the lower entrance floor 11. An upper terminal 24 is disposed on the upper floor side of the frame 12, and a lower terminal 25 is disposed on the lower floor side of the frame 12. A drive unit 10 and a drive-side terminal gear 6 are disposed on the upper terminal 24, and a driven-side terminal gear 7 is disposed on the lower terminal 25. The drive unit 10, drive-side terminal gear 6, and driven-side terminal gear 7 are disposed below the entrance floor 11. The drive-side terminal gear 6 is rotatably supported at one end of the frame 12 in the longitudinal direction, and the driven-side terminal gear 7 is rotatably supported at the other end of the frame 12 in the longitudinal direction.

[0020] The driving device 10 is composed of an electric motor and a reducer 8. Electric power is supplied to the electric motor from a control panel. The operation of the electric motor is controlled by the control panel. A belt member is wound around the drive pulley of the electric motor. This belt member is also wound around the driven pulley of the reducer 8. As a result, the rotational force of the electric motor is transmitted to the reducer 8 via the belt member.

[0021] Furthermore, a drive chain 9 is wound around the transmission sprocket of the reducer 8. This drive chain 9 is wound around the driving chain sprocket of the drive-side terminal gear 6. The driving force of the drive unit 10 is then transmitted to the drive-side terminal gear 6 via the drive chain 9, causing the drive-side terminal gear 6 to rotate.

[0022] A step chain 13 is wound around the drive side terminal gear 6 and the driven side terminal gear 7. When the drive side terminal gear 6 rotates, the driven side terminal gear 7 and the step chain 13 rotate.

[0023] A handrail drive chain (not shown) is wound around the drive-side terminal gear 6. The handrail drive chain is wound around a plurality of transmission pulleys and also around a sprocket provided on the drive roller of the handrail drive device.

[0024] The driving device 10, the driving side terminal gear 6, and the driven side terminal gear 7 constitute a driving mechanism of the passenger conveyor 1. That is, the upper terminal 24 and the lower terminal 25 are provided with driving mechanisms.

[0025] The frame 12 is also provided with a front wheel rail 22 and a rear wheel rail 23 (see FIG. 3). The plurality of steps 5 are movably supported on the front wheel rail 22 and the rear wheel rail 23. The plurality of steps 5 are connected endlessly via a step chain 13. The plurality of steps 5 are guided by the front wheel rail 22 and the rear wheel rail 23 attached to the frame 12 and move cyclically between the outbound (going) side and the return (returning) side. The movement direction of the steps 5 is reversed at the upper terminal 24 and the lower terminal 25. Passengers are transported aboard the steps 5 moving on the outbound side.

[0026] The balustrade 3 and skirt guard 4 are arranged on both sides of the frame 12 in the width direction. The balustrade 3 is supported on the upper part of the frame 12 via the skirt guard 4. An endless handrail 2 is attached to the balustrade 3. The handrail 2 is movably supported on the balustrade 3. The handrail 2 moves in a circular motion in the same direction as the plurality of steps 5 and in synchronization with the plurality of steps 5 by a handrail drive device.

[0027] FIG. 3 shows the step 5 and is a side cross-sectional view for explaining the position of the step 5 in the middle part of the frame 12. 3, the step 5 has a footboard 16 on which passengers mainly stand, a riser 17 which represents the main body of the step 5, a front wheel 18, a rear wheel 19, a bracket 20, and a step guide 21. In this example, the front wheel 18 is built into the step chain 13.

[0028] The front wheels 18 and rear wheels 19 are disposed on both sides in the width direction of the riser 17. The front wheels 18 run on front wheel rails 22 provided on the frame 12, and the rear wheels 19 run on rear wheel rails 23 provided on the frame 12. Brackets 20 are disposed on both sides in the width direction of the riser 17. Step guides 21 are attached to the brackets 20.

[0029] The step guide 21 protrudes from the bracket 20 outward in the width direction of the riser 17, i.e., toward the skirt guard 4. The step guide 21 is interposed on the surface of the bracket 20 facing the skirt guard 4 to prevent the bracket 20 and the skirt guard 4 from approaching each other. Therefore, the step guide 21 acts as a spacer that forms a gap between the step 5 and the skirt guard 4. The step guide 21 also makes it possible to prevent the step 5 from meandering.

[0030] In the present invention, the step 5 represents a movable part, and the skirt guard 4, frame 12, comb 14, step guide rail 15, front wheel rail 22, rear wheel rail 23, etc. are installed in the building structure and represent non-movable parts that do not move.

[0031] 1-2. Passenger conveyor inspection system configuration Next, an example of the configuration of a passenger conveyor inspection system 100 of this embodiment used when inspecting the above-mentioned passenger conveyor 1 will be described with reference to FIG. FIG. 4 is a system configuration diagram showing the passenger conveyor inspection system 100.

[0032] As shown in Fig. 4, passenger conveyor inspection system (hereinafter simply referred to as "inspection system") 100 includes a plurality of acceleration sensors 101a, 101b, 101c, 101d, 101e, 101f, and 101g, and a computing device 102. Each of the plurality of acceleration sensors 101a, 101b, 101c, 101d, 101e, 101f, and 101g and the computing device 102 includes a wireless communication unit, and is connected to be able to send and receive information. A general wireless communication standard is applied to the wireless communication unit.

[0033] The multiple acceleration sensors 101a to 101g are detachably attached to the steps 5, step guide rails 15, combs 14, and other components that make up the passenger conveyor 1. The multiple acceleration sensors 101a to 101g detect vibrations of the components on which they are installed and transmit the detected vibration information to the calculation device 102 via a wireless communication unit.

[0034] The acceleration sensors 101a to 101g may be installed using a magnet, double-sided tape, hook-and-loop fastener, wax, or other various installation methods.

[0035] In this example, an acceleration sensor is used as a vibration sensor to detect vibrations, but this is not limited to this, and various other sensors such as an acceleration sensor (gyro sensor) or a sound sensor to detect abnormal sounds can be used as the vibration sensor.

[0036] The arithmetic unit 102 may be a personal computer (PC) or a portable information terminal owned by an operator, or may be a computer at a monitoring center that monitors the passenger conveyor 1. The arithmetic unit 102 receives vibration information from the multiple acceleration sensors 101a-101g and performs signal processing (time synchronization of acquired data, removal of high-frequency noise, etc.). The arithmetic unit 102 then synchronizes the vibration information detected by the multiple acceleration sensors 101a-101g with each other and outputs the information as a time-series data graph to a display device or the like.

[0037] The arithmetic device 102 also has preset thresholds for each member on which the acceleration sensors 101a-101g are installed. The arithmetic device 102 then performs a pass / fail (abnormal) judgment on the passenger conveyor 1 based on the thresholds and vibration information detected by the plurality of acceleration sensors 101a-101g. In the pass / fail judgment, the source of the abnormal sound (abnormal vibration) may also be identified based on the vibration information detected by each of the acceleration sensors 101a-101g.

[0038] 5 and 6 are diagrams showing the installation positions of acceleration sensors 101a to 101g. Fig. 5 shows the entire passenger conveyor 1, and Fig. 6 shows the area around the entrance / exit floor 11. In the following description, the longitudinal direction of the passenger conveyor 1, i.e., the direction of travel (front-to-back direction) on the outward and return journeys of the step 5, is defined as the X direction. The width direction of the passenger conveyor 1 is defined as the Y direction, and the vertical direction is defined as the Z direction.

[0039] As shown in Figures 5 and 6, acceleration sensor 101a is installed on step 5. Acceleration sensor 101a installed on step 5 detects vibrations in at least the Z direction. Acceleration sensor 101b is installed on one side in the Y direction of two step guide rails 15, 15 installed on lower terminal 25, i.e., on the left step guide rail 15. Acceleration sensor 101c is installed on one side in the Y direction of two step guide rails 15, 15 installed on lower terminal 25, i.e., on the right step guide rail 15. Acceleration sensor 101d is installed on comb 14 installed on entrance floor 11 of lower terminal 25.

[0040] The acceleration sensor 101e is installed on one side in the Y direction of the two step guide rails 15, 15 provided on the upper terminal 24, i.e., the left step guide rail 15. The acceleration sensor 101f is installed on one side in the Y direction of the two step guide rails 15, 15 provided on the upper terminal 24, i.e., the right step guide rail 15. The acceleration sensor 101g is installed on a comb 14 provided on the entrance floor 11 of the upper terminal 24.

[0041] Acceleration sensor 101a installed on step 5 detects vibrations in at least the Z direction. Acceleration sensors 101b, 101c, 101e, and 101f installed on step guide rail 15 detect vibrations in at least the Y direction. Acceleration sensors 101d and 101g installed on comb 14 detect vibrations in at least the X direction.

[0042] If an abnormality occurs in the step guide rail 15 or the step guide 21, the step guide 21 abuts against the step guide rail 15 from the width direction (Y direction), causing the step guide rail 15 to vibrate mainly in the width direction (Y direction). Also, when the comb 14 and the step 5 abut against each other, the step 5 abuts against the comb 14 from the front-to-back direction (X direction). Therefore, the comb 14 vibrates mainly in the front-to-back direction (X direction).

[0043] In this way, the acceleration sensors 101b to 101g installed on the non-moving parts detect vibrations in the direction in which they mainly vibrate in the event of an abnormality, depending on the member on which they are installed. The direction in which vibration occurs in the event of an abnormality is the direction in which the step 5 abnormally abuts against the non-moving part. This makes it possible to prevent an increase in the amount of information in the signal processing performed by the arithmetic device 102, and to prevent the output processing of the detection results and the pass / fail judgment processing from becoming complicated. As a result, it is possible to improve the accuracy of detecting the source of the abnormal sound (vibration).

[0044] The acceleration sensors 101a to 101g are not limited to sensors that can detect signals in only one axis direction, but sensors that can detect vibrations in three axes directions, that is, the X direction, the Y direction, and the Z direction, may also be used.

[0045] 2. Example of inspection method using passenger conveyor inspection system Next, an example of an inspection method for the passenger conveyor 1 using the passenger conveyor inspection system 100 having the above-described configuration will be described with reference to Fig. 7. In the example shown in Fig. 7, an inspection method will be described for a test run that is carried out after assembly of the passenger conveyor 1 or after on-site construction. FIG. 7 is a flowchart showing a method for inspecting the passenger conveyor 1 using the passenger conveyor inspection system 100.

[0046] 7, first, an operator performs a pairing (communication connection) operation (S1) between the multiple acceleration sensors 101a to 101g and the arithmetic device 102. As a result, wireless communication between the multiple acceleration sensors 101a to 101g and the arithmetic device 102 is established.

[0047] Next, the worker attaches multiple acceleration sensors 101a-101g to predetermined locations on the passenger conveyor 1 as shown in Figures 5 and 6 (S2). Then, the worker moves the steps 5 of the passenger conveyor 1 down and up several times (preferably three or more times), and the multiple acceleration sensors 101a-101g measure acceleration data (vibration information) of each member (S3). The multiple acceleration sensors 101a-101g also transmit the detected vibration information to the calculation device 102 via a wireless communication unit.

[0048] By moving it in both the downward and upward directions, the behavior of step 5 changes depending on the downward or upward direction, making it possible to check whether the abnormal sound occurs in one direction or both. Furthermore, by moving it around several times instead of just once, it is possible to check the reproducibility of the abnormal sound.

[0049] Next, the arithmetic device 102 performs signal processing on the vibration information measured by the multiple acceleration sensors 101a to 101g, graphs the data as time-series data, and outputs it (step S4).Then, the arithmetic device 102 performs pass / fail judgment on each component based on the output graph (S5).

[0050] Here, an example in which the arithmetic device 102 graphs vibration information will be described with reference to FIG. FIG. 8 is a graph of some of the acceleration data (vibration information) at the step 5 and the lower terminal 25. The top graph in FIG. 8 is a graph of acceleration data detected by the acceleration sensor 101a provided on the step 5. The second graph from the top in FIG. 8 is a graph of acceleration data detected by the acceleration sensor 101b provided on the left step guide rail 15 of the lower terminal 25. The third graph from the top in FIG. 8 is a graph of acceleration data detected by the acceleration sensor 101c provided on the right step guide rail 15 of the lower terminal 25. The bottom graph in FIG. 8 is a graph of acceleration data detected by the acceleration sensor 101d provided on the comb 14 of the lower terminal 25.

[0051] 8, the acceleration in the Z direction exceeds the threshold when the step 5 reverses from the return side to the forward side at the upper terminal 24. Therefore, the calculation device 102 and the operator can infer from this graph that there was a step on the rails 22, 23 before the step 5 reversed at the upper terminal 24.

[0052] 8, it can be seen that the acceleration of the step guide rail 15 on the right side of the lower terminal 25 is generally greater than the acceleration of the step guide rail 15 on the left side. The acceleration of the step guide rail 15 on the right side exceeds the threshold several times. From this information, the calculation device 102 can infer that the step guide 21 on the right side of the step 5 is rubbing against the step guide rail 15 on the right side more than a predetermined value.

[0053] Furthermore, as shown in the bottom graph in Fig. 8, the acceleration of the comb 14 of the lower terminal 25 exceeds the threshold value, which allows the computing device 102 and the operator to infer that the comb 14 and the step 5 have come into contact with each other, causing an abnormal sound (vibration).

[0054] In this way, it is possible to clearly determine where an abnormal sound (abnormal vibration) is generated by providing acceleration sensors 101b, 101c, 101d, 101e, 101f, and 101g on non-moving parts such as comb 14 and step guide rail 15. As a result, it is possible to accurately and efficiently identify the source of the abnormal sound (vibration) without relying on the ears or experience of the worker.

[0055] Furthermore, the arithmetic device 102 may suggest a method for adjusting the defect based on the output graph during the pass / fail determination process in S5. For example, as described above, by comparing the second and third graphs, it can be determined that the right step guide 21 in step 5 is rubbing against the right step guide rail 15 more than a predetermined value. Therefore, the arithmetic device 102 suggests to the worker to move the step 5 to the left or move the position of the right step guide rail 15 to the right. This makes it easy to perform the readjustment work shown in S6, which will be described later.

[0056] If the calculation device 102 determines that an abnormality has occurred in the process of S5 (NG judgment in S5), the worker readjusts the defective part based on the result of S5 (S6).Then, the process returns to S3, and acceleration data is acquired again (S3), graphed (S4), and pass / fail judgment (S5) is performed.

[0057] Furthermore, if the arithmetic device 102 determines in the process of S5 that there is no abnormality (OK determination in S5), the worker removes the acceleration sensors 101a-101g attached in the process of S2 (S7). Then, the worker or the arithmetic device 102 issues the measurement results after adjustment as an inspection certificate for trial run adjustment (S8). This completes the inspection method for the passenger conveyor 1 using the passenger conveyor inspection system 100.

[0058] In the above-described inspection method, an example has been described in which the inspection is carried out after the passenger conveyor 1 is assembled or installed on-site, but the present invention is not limited to this. For example, the above-described inspection may be carried out during periodic maintenance inspections after the passenger conveyor 1 is installed in a building structure.

[0059] Although the example in which the calculation device 102 performs the pass / fail determination process in the process of S5 has been described, the present invention is not limited to this. In the process of S4, the calculation device 102 performs signal processing on the vibration information measured by the multiple acceleration sensors 101a-101g, graphs the data as time-series data, and outputs it. Therefore, the pass / fail determination process of S5 may be performed by an operator, for example, based on the data output by the calculation device 102.

[0060] The present invention is not limited to the embodiments described above and shown in the drawings, and various modifications are possible within the scope of the invention as defined in the claims.

[0061] In the above-described embodiment, an example was described in which the acceleration sensor 101a, which is a vibration sensor, is attached to the step 5, which is a movable part, but this is not limited to this, and the vibration sensor does not have to be attached to the step 5, which is a movable part.

[0062] Furthermore, the non-moving part to which the vibration sensor is attached is not limited to the comb 14 or the step guide rail 15, but may be attached to various other members such as the front wheel rail 22, the rear wheel rail 23, the frame 12, the skirt guard 4, the boarding / alighting floor 11, etc. Here, the upper terminal 24 and the lower terminal 25 are provided with members that emit vibrations such as the drive side terminal gear 6, the driven side terminal gear 7, the reducer 8, and the drive unit 10, making it difficult to distinguish between vibrations from abnormal sounds. Therefore, it is preferable to use members disposed on the upper terminal 24 or the lower terminal 25 as the non-moving part to which the vibration sensor is attached in order to distinguish between vibrations from the drive unit 10 and abnormal sounds.

[0063] Furthermore, although an example has been described in which acceleration sensors 101a to 101g, which are vibration sensors, are attached to passenger conveyor 1 during inspection, the present invention is not limited to this. For example, the vibration sensors may remain attached to passenger conveyor 1 at all times even after passenger conveyor 1 is installed in a building structure. This allows the state of passenger conveyor 1 to be monitored at all times.

[0064] In the above-described embodiment, an escalator with steps between the steps has been used as an example of an inclined passenger conveyor. However, the passenger conveyor of the present invention can also be applied to an electrically operated road with multiple steps without steps between them, a so-called moving walkway.

[0065] The present invention can also be applied to a passenger conveyor having a frame in which at least a portion of the inclined section is provided with a portion parallel to the upper horizontal section and the lower horizontal section.Furthermore, the present invention can also be applied to a passenger conveyor having a frame in which the extending direction of the upper horizontal section and the lower horizontal section differs due to the extension direction of the inclined section being curved and changed.

[0066] In this specification, the words "parallel" and "orthogonal" are used, but these do not mean only "parallel" and "orthogonal" in the strict sense, but also include "parallel" and "orthogonal" and may also mean a "substantially parallel" or "substantially orthogonal" state within a range in which the functions can be exerted. [Explanation of symbols]

[0067] 1...passenger conveyor, 2...handrail, 3...balustrade, 4...skirt guard, 5...step, 6...drive side terminal gear, 7...driven side terminal gear, 8...reduction gear, 9...drive chain, 10...drive device, 11...entrance / exit floor, 12...frame, 13...step chain, 14...comb, 15...step guide rail, 16...tread, 17...riser, 18...front wheel, 19...rear wheel, 20...bracket, 21...step guide, 22, 23...rail, 24...upper terminal, 25...lower terminal, 100...passenger conveyor inspection system, 101a, 101b, 101c, 101d, 101e, 101f, 101g...acceleration sensor, 102...computing device

Claims

1. A passenger conveyor inspection system for inspecting a passenger conveyor, a vibration sensor attached to a non-movable part of the passenger conveyor that does not move and detects vibrations of the non-movable part; a computing device that acquires vibration information detected by the vibration sensor, performs signal processing on the vibration information, and outputs the signal, The computing device has a preset threshold value for each member on which the vibration sensor is installed, and determines whether there is an abnormality in the passenger conveyor based on the threshold value and the vibration information, performs signal processing on the vibration information, and proposes a method for adjusting the malfunction based on the output data. Passenger conveyor inspection system.

2. The vibration sensor is also attached to a step, which is a moving part of the passenger conveyor.

10. The passenger conveyor inspection system of claim 1.

3. The vibration sensor is attached to a non-moving part provided in a terminal where a drive mechanism of the frame of the passenger conveyor is disposed.

10. The passenger conveyor inspection system of claim 1.

4. The vibration sensor is attached to at least a step guide rail or a comb of the passenger conveyor as the non-moving part.

4. The passenger conveyor inspection system of claim 3.

5. The vibration sensor detects vibrations in at least the direction in which the non-moving part vibrates when an abnormality occurs.

10. The passenger conveyor inspection system of claim 1.

6. The vibration sensor is detachably attached to the passenger conveyor.

10. The passenger conveyor inspection system of claim 1.

7. A passenger conveyor inspection method for inspecting a passenger conveyor, comprising: a process of detecting vibrations of a non-moving part of the passenger conveyor by a vibration sensor attached to the non-moving part; a process of acquiring vibration information detected by the vibration sensor by a computing device, performing signal processing on the vibration information, and outputting the signal; a process in which the computing device determines an abnormality in the passenger conveyor based on the vibration information and a threshold value preset for each member on which the vibration sensor is installed, performs signal processing on the vibration information, and proposes an adjustment method for the malfunction based on the output data; A passenger conveyor inspection method comprising:

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