JP2020045187A - Step floating inspection device - Google Patents

Abstract

To detect floating of a step of a passenger conveyor with a detachable, compact and simple configuration device.SOLUTION: A step floating inspection device 200 for detecting floating of a tread 111 of a step 106 of a passenger conveyor, comprises: an irradiation device 210 arranged on the tread 111 and irradiating a horizontal detection wave toward a second end part at a predetermined height from a first end part in the width direction of the step 106; a receiver 220 arranged on the tread 111, receiving the detection wave irradiated from the irradiation device 210 at the second end part, converting it to an electrical signal and outputting it; and a signal processing device 250 acquiring the electrical signal output by the receiver 220, generating information indicating the presence/absence of floating of the tread 111 of the step 106 and outputting it. The step floating inspection device is characterized that the prescribed height is equal to or less than the floating height of the tread 111 of the step 106 required for detection.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an inspection technique for a passenger conveyor (escalator, moving sidewalk, etc.), and particularly to an inspection technique for steps.

  There is a technique for detecting the rising of a step of an escalator. For example, Patent Literature 1 discloses that “a skirt guard is provided on one side of a moving step and emits a detection wave toward the other of the skirt guard, and the step exists in the traveling direction of the detection wave. If not, the detection device does not detect the detection wave, and if the step is present in the traveling direction of the detection wave, a sensor device that detects a detection wave reflected at a side surface of an intersection between a tread plate of the step and a riser; A control device for detecting the rising of the intersection between the tread of the step and the riser based on the detection state of the detection wave by the sensor device (abstract excerpt). "

  Patent Document 2 discloses that "a line sensor is arranged on the return side of a step to measure a substantially vertical position of a step tread surface, and a step value is detected by comparing with a normal value (abstract excerpt)." An apparatus for detecting an abnormality in a step of a passenger conveyor is disclosed.

JP-A-2015-147638 JP 2018-2433 A

  However, the safety device disclosed in Patent Literature 1 embeds a detection wave irradiator inside the escalator frame, thereby realizing horizontal irradiation of the detection wave on the upper surface of the step tread surface. Therefore, if this safety device is to be mounted other than during installation, a large-scale construction is required. That is, the existing equipment cannot be easily used.

  Further, in the device disclosed in Patent Document 2, it is necessary to dispose the line sensor so as to cover the entire width of the step tread surface, and the device becomes complicated and large.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a technology capable of detecting a floating of a step of a passenger conveyor with a device having a detachable, small, and simple configuration.

  The present invention is a step lift inspection device that detects a lift of a tread of a step of a passenger conveyor, and is disposed on the tread, from a first end that is one end in the width direction of the step. An irradiation device that irradiates a horizontal detection wave at a predetermined height toward a second end, which is the other end in the width direction of the step, and is arranged on the tread surface, and is irradiated from the irradiation device. Receiving the detected wave at the second end, converting the output to an electric signal and receiving the electric signal, the electric signal output by the receiving device is obtained, and the presence or absence of the lifting of the tread in the step. And a signal processing device for generating and outputting the indicated information, wherein the predetermined height is equal to or less than the floating height of the tread of the step to be detected.

  ADVANTAGE OF THE INVENTION According to this invention, the floating of the step of a passenger conveyor can be detected by the apparatus of a detachable small size and simple structure. Problems, configurations, and effects other than those described above will be apparent from the following description of the embodiments.

(A) is an explanatory diagram for explaining a schematic configuration of an escalator according to an embodiment of the present invention, (b) is an explanatory diagram for explaining a schematic configuration of steps of the escalator, and (c) is a diagram for explaining the steps by x. It is the figure seen from the direction. 1A is an overall configuration diagram of a step inspection device according to an embodiment of the present invention, and FIGS. 2B and 2C are explanatory diagrams for explaining an arrangement mode of the step inspection device at the time of inspection on a step. It is. (A)-(c) is explanatory drawing for demonstrating the principle of the floating inspection of the step by the step inspection apparatus of embodiment of this invention. (A) is a functional block diagram of the signal processing device of the embodiment of the present invention, and (b) is a diagram of an example of an output from the signal processing device of the embodiment of the present invention. (A)-(c) is explanatory drawing for demonstrating the aspect of the lifting of the tread of embodiment of this invention. (A)-(c) is explanatory drawing for demonstrating the modification of embodiment of this invention. FIG. 14 is a diagram illustrating an example of an output of a modified example of the embodiment of the present invention. It is a whole block diagram of the step inspection apparatus of the modification of embodiment of this invention.

  An embodiment of the present invention will be described with reference to the drawings. In the present embodiment, an abnormality (floating) of a tread surface of a step is detected for a passenger conveyor such as an escalator or an electric road, particularly, a passenger conveyor provided with cleats at steps. Hereinafter, an escalator will be described as an example of the passenger conveyor.

[Schematic configuration of escalator]
First, a schematic configuration of an escalator including a step to be inspected according to the present embodiment will be described. FIG. 1A is a schematic configuration diagram of an escalator 100 of the present embodiment.

  As shown in the figure, the escalator 100 of the present embodiment includes a drive motor 101, a speed reducer 102, a driving chain 103, a terminal gear 104, a terminal gear bearing 105, a step 106, a step chain 107, It includes a handrail 108, a handrail drive device 109, and a handrail drive chain 110.

  A drive pulley is provided on a drive shaft of the drive motor 101, and the drive pulley transmits power to a driving chain 103 via a speed reducer 102. The driving chain 103 transmits power to a step chain 107 and a handrail 108 via a terminal gear 104 installed on the escalator 100 and the like.

  Step chain 107 is connected to step 106. This step chain 107 is wound around a terminal gear 104 installed above the escalator 100 and another terminal gear 104 installed below the escalator 100. When the escalator 100 travels, the step chain 107 circulates with the step 106 as the upper terminal gear 104 is driven to rotate by the drive motor 101. At this time, the plurality of steps 106 are connected endlessly and circulate between the upper and lower landings 112.

  In addition, not only the step chain 107 but also the handrail drive chain 110 is wound around the terminal gear 104 installed above the escalator 100. The handrail drive chain 110 drives the handrail 108 via the handrail drive device 109.

  As described above, when the escalator 100 is running, when the terminal gear 104 is driven to rotate, the handrail 108 circulates in synchronization with the step 106. Thereby, the escalator 100 can safely carry the passenger holding the handrail 108 on the step 106.

  Hereinafter, for the sake of explanation, a coordinate system in which the traveling direction of step 106 is the x axis, the width direction of step 106 is the y axis, and the vertical direction is the z axis is used.

  In the present embodiment, the rising of step 106 of the escalator 100 having the above configuration is detected. Hereinafter, the details of step 106 will be described.

  FIG. 1B is a perspective view of step 106. Step 106 of this embodiment includes a step 116. The step 116 includes a step board 113 and a cleat 114. In order to improve the strength, a plurality of cleats 114 are formed on the surface of the tread plate 113 in the width direction of the tread plate 113 along the traveling direction of the step 106.

  FIG. 1C shows the step 116 in step 106 as viewed from the x direction. As shown in the figure, the step 116 has a configuration in which the cleats 114 are arranged on the step board 113. Note that demarcation cleats 115 are provided on both ends of the tread plate 113 in the y-axis direction and outside the tread surface 111. The demarcation cleat 115 has the same shape as the cleat 114, but is set higher than the cleat 114. This is to make it difficult for the passenger's clothes and the like to be caught in the gap with the skirt guard.

  Hereinafter, in this specification, a surface formed on the upper surface of the cleat 114 is referred to as a tread surface 111, and it is detected whether or not this surface has an abnormality such as floating.

[Step inspection device]
Next, the step inspection device 200 of the present embodiment will be described. The step inspection device 200 of this embodiment has one end disposed on the escalator landing (getting on and off) 112 and the other end disposed on the tread 111 of step 106, and irradiates a detection wave on the tread 111 in the horizontal direction. Based on the reception intensity, information that can determine whether or not the tread has risen is output. The step inspection device 200 of the present embodiment is a device independent of the escalator 100, and is detachable from the escalator 100.

  FIG. 2A is an overall configuration diagram of the step inspection device 200 of the present embodiment. As shown in the figure, the step inspection device 200 of the present embodiment includes an irradiation device 210 that irradiates a detection wave, a reception device 220 that receives the detection wave, an irradiation-side fixing device 230 that fixes the irradiation device 210, It includes a receiving side fixing device 240 for fixing the receiving device 220 and a signal processing device 250 for performing signal processing on the detection wave received by the receiving device 220 and outputting the signal.

  Irradiation device 210 is arranged above tread surface 111 during inspection, and irradiates a horizontal detection wave from one end in the width direction (y-axis direction) of step 106 to the other end. In order to realize this, the irradiation device 210 includes a detection wave generation / output unit 211 and a reflection unit 212.

  The detection wave generation and output unit 211 generates a detection wave and outputs it to the reflection unit 212. As the detection wave, for example, a laser beam having excellent directivity and convergence can be used. In this case, the detection wave generation / output unit 211 includes a light emitting element such as an LED (Light Emitted Diode) or a laser diode. Hereinafter, in this specification, description will be made assuming that laser light is used as a detection wave.

  The light emitting element of the detection wave generation and output unit 211 starts emitting light and outputs laser light, for example, in response to a start instruction. Further, the generation and the output are stopped according to the end instruction. The start instruction and the end instruction may be received from the user via the start and end instruction unit. Further, the detection wave generation / output unit 211 may include a wireless signal receiving unit, and may receive these instructions from the signal processing device 250.

  The reflection unit 212 is attached so that the angle can be adjusted, and changes the traveling direction of the laser light output from the detection wave generation output unit 211. At the time of use, the traveling direction of the laser beam output from the detection wave generation / output unit 211 is set at a predetermined height and horizontal at the end in the width direction of Step 106, and the other end of the laser beam is reflected at the other end. It changes so that it may go to part 222. In the present embodiment, the reflection unit 212 is formed of, for example, a plate-like member having a reflection surface such as a mirror, and changes an optical path by reflection.

  At the time of inspection, the receiving device 220 is arranged at an end above the tread 111 and on the opposite side to the irradiation device 210, receives (receives) laser light emitted from the irradiation device 210, and outputs intensity. In order to realize this, a reflection unit 222 and a detection wave reception conversion unit 221 are provided.

  The reflection unit 222 is attached so that the angle can be adjusted, and changes the traveling direction of the laser light reflected by the reflection unit 212 of the irradiation device 210. In use, it is arranged at the end of the width direction of the step 106 opposite to the reflection part 212 at a position facing the reflection part 212. Then, the laser light is guided to the detection wave reception conversion unit 221. The reflection unit 222 is formed of, for example, a plate-shaped member having a reflection surface such as a mirror.

  The detection wave reception conversion unit 221 receives the laser light guided by the reflection unit 222, converts the laser light into an electric signal, and outputs the signal intensity to the signal processing device 250. The detection wave reception conversion unit 221 is formed of, for example, a light receiving element such as a photodiode that converts light into an electric signal. In the present embodiment, no electric signal is generated while the laser light is not being received.

  The irradiation-side fixing device 230 and the receiving-side fixing device 240 hold the irradiation device 210 and the receiving device 220 at predetermined positions on step 106, respectively. The irradiation-side fixing device 230 and the receiving-side fixing device 240 are respectively provided with the irradiation device 210 and the receiving device 220 at one end, and arranged at the other end in the landing 112.

  FIGS. 2B and 2C show how the step inspection apparatus 200 is arranged at the step 106 during the inspection.

  As shown in these drawings, the irradiation-side fixing device 230 is configured such that the reflection unit 212 of the irradiation device 210 enters between the cleats 114, and the detection wave generation output unit 211 is in a non-contact state with the cleats 114. The irradiation device 210 is held and fixed to the landing 112.

  The irradiation-side fixing device 230 includes a fixing portion 231 and a device support portion 232, as shown in FIG. At the time of inspection, for example, the fixing portion 231 is fixed to a screw hole or the like of the landing 112 for fixing a comb plate with a screw or the like. As shown in FIG. 2B, the device support portion 232 extends in the x-axis direction, and has one end attached to the fixed portion 231 and the other end attached to the irradiation device 210. The device support portion 232 has a configuration in which the length can be adjusted, and arranges the irradiation device 210 at a desired position.

  The receiving side fixing device 240 also includes a fixing portion 241 and a device support portion 242. The shape, function, and the like are the same as those of the irradiation side fixing device 230 having the same name. However, the device support unit 232 arranges the receiving device 220 at a desired position.

  It is desirable that the reflection unit 212 and the reflection unit 222 be arranged at the same position in the traveling direction of step 106. It is desirable that the lengths of the device support portion 232 and the device support portion 242 in the y-axis direction are lengths that realize this.

  In the present embodiment, the floating is inspected over the entire width of step 106. For this reason, when the step inspection device 200 is used, as shown in FIG. 2C, the reflection portion 212 is outside the one endmost cleat 114 in the width direction of the step 106 and is a demarcation cleat 115. It is arranged inside. Further, the reflection part 222 is arranged outside the cleat 114 at the other end and inside the demarcation cleat 115.

  Note that, for example, a screw or the like may be provided as a mechanism for adjusting the angle between the reflection unit 212 and the reflection unit 222.

  The principle of the floating inspection in Step 106 by the step inspection device 200 arranged on the escalator 100 by the irradiation-side fixing device 230 and the receiving-side fixing device 240 as described above will be briefly described. FIGS. 3A and 3C are views for explaining the principle of step 106 floating inspection by the step inspection apparatus 200. FIG. FIG. 3B is an enlarged view of a region A surrounded by a dotted line in FIG.

  At this time, as shown in FIG. 3A, as described above, the reflection unit 212 causes the laser light 260 emitted from the detection wave generation and output unit 211 to travel horizontally and travel to the reflection unit 222. Thus, the direction of the reflection surface is adjusted. Further, as shown in FIG. 3B, when all the cleats 114 are normally arranged and the tread 111 in step 106 does not rise, a position higher than the upper surface of the tread 111 by a predetermined height d is set. It is arranged so that the laser light 260 travels.

  The predetermined height d is determined according to the detection accuracy. That is, the height is set to be equal to or less than the floating height of the tread surface 111 to be detected. For example, it is desirable that the distance between the height of the upper surface of the tread surface 111 and the height of the lower part of the floor of the landing 112 is approximately equal to or less than the interval.

  In the present embodiment, the reflection unit 212 and the reflection unit 222 are arranged after being adjusted as described above. Therefore, when there is no floating on the tread 111, or when there is only a floating less than the predetermined height d, the laser light 260 reaches the receiving device 220. On the other hand, as shown in FIG. 3B, when the tread surface 111 has a lift of a predetermined height d or more, the laser light 260 is blocked by the lift position and does not reach the receiving device 220.

  The signal processing device 250 performs signal processing on the laser light received by the receiving device 220, and generates and outputs information indicating whether or not the tread surface 111 has risen in step 106. The signal processing device 250 is realized by, for example, a controller including an arithmetic device and a memory. In addition, the signal processing device 250 realizes, as functions, a processing unit 251 and an output unit 252 as shown in FIG.

  The processing unit 251 converts the electric signal transmitted from the receiving device 220 into a digital signal after amplifying the electric signal, for example, and obtains a signal strength. In the present embodiment, the inspection of Step 106 is continuously performed on the treads 111 of Steps 106 while running the escalator 100.

  For this reason, the processing unit 251 stores the obtained signal strength in association with the time (timing) when the electric signal is received (acquired). Further, at the timing when the electric signal is received (acquired), the step 106 where the laser light is irradiated and the position (inspection position) in the traveling direction (x-axis direction) are specified. That is, for each time, the signal intensity and the inspection position at the time are associated with each other, and stored as a processing result in a memory or the like.

  In the present embodiment, the signal strength during a period during which no electric signal is received is set to 0.

  The signal processing device 250 holds a database (DB) 253 in which the inspection time of one step 106 is registered for each traveling speed of the escalator 100. The time required for the inspection in one step 106 is registered in the database 253. By referring to the database 253, the processing unit 251 specifies which stage of the step 106 is being inspected from the step 106 where the inspection is started, according to the time from the start of the inspection. In addition, the position in the traveling direction in step 106 specified for each time can also be specified by linear interpolation. The processing unit 251 thus specifies the inspection position.

  The output unit 252 outputs a processing result by the processing unit 251. The output may be continuously performed every time the processing result is obtained, or the processing result may be temporarily stored in a memory or the like in association with time, read out from the memory in response to a request from a user (maintenance staff), and output. May be. Thus, the maintenance staff can check the inspection result at a desired timing after inspecting all the steps 106.

  For example, when the signal processing device 250 includes a display device 254 such as a display, the output destination may be the display device 254. The output destination may be an external device capable of transmitting and receiving data to and from the signal processing device 250. The external device may be, for example, a maintenance terminal carried by a maintenance person using the step inspection device 200 or the like.

  Note that the step inspection device 200 may include a communication line 201 that transmits the laser light detected by the receiving device 220 to the signal processing device 250, as shown in FIG. When wireless transmission is performed from the receiving device 220 to the signal processing device 250, the communication line 201 may not be provided.

  Here, an example of the processing result output from the signal processing device 250 is shown in FIG. The vertical axis is the signal strength, and the horizontal axis is the time.

  As described above, in the present embodiment, the inspection in step 106 is performed while the escalator 100 is running. Therefore, as time elapses, the step inspection device 200 sequentially inspects different treads of step 106.

  The signal processing device 250 obtains an electric signal having a predetermined signal strength while the tread 111 does not float. In the example of FIG. 4B, the signal strength a is obtained. On the other hand, the laser beam 260 is shielded while the step 106 in which the tread 111 (the cleat 114) has a lift is inspected. Therefore, during this time, no electric signal is received. Therefore, the signal strength is zero.

  The signal processing device 250 refers to the database 253 and specifies the step 106 to be inspected and the position in the traveling direction as the inspection position according to time. Here, it is assumed that the identification numbers c1, c2, c3, c4, and c5 are assigned in order from step 106 at which the inspection was started.

  In the example of FIG. 4B, light shielding 255a and 255b are generated at c2, which is the second step 106, and c4, which is the fourth step 106. That is, it is indicated that the floating has occurred.

  Note that, as shown in FIG. 3B, some cleats 114 do not only float on the tread surface 111 floating in step 106. For example, as shown in FIG. 5A, the cleats 114 constituting the tread surface 111 in Step 106 are all floating, as shown in FIG. 5B, the entire tread surface 111 has a slope, and FIG. As shown in c), some of the cleats 114 have an inclination. In these figures, the demarcation cleat 115 is also shown at the same height as the cleat 114.

  In any case, the laser light 260 is shielded by the tread 111 and does not reach the receiving device 220.

  As described above, the step inspection device 200 of the present embodiment is detachable from the escalator 100, which is a passenger conveyor, and detects the floating of the tread surface 111 in step 106. Further, the step inspection device 200 is disposed on the tread surface 111, and outputs a horizontal detection wave at a predetermined height d from a first end, which is one end in the width direction of step 106, in the width direction of step 106. An irradiation device 210 for irradiating toward a second end, which is the other end of, and a detection wave radiated from the irradiation device 210, which is arranged on the tread surface 111, is received at the second end, and an electric signal is received. And a signal processing device 250 that obtains an electric signal output by the receiving device 220, generates information indicating presence / absence of floating in step 106, and outputs the information. In addition, the predetermined height d is a height equal to or less than the floating height of the tread surface 111 of the step 106 to be detected.

  Thus, the step inspection device 200 of the present embodiment is independent of the escalator 100. Further, there is provided an irradiation device 210 that transmits a detection wave (laser light 260) having a height d that is horizontal and has a height equal to or less than the height to be detected from one end in the width direction to the other end in step 106. In the receiving device 220 arranged at the other end, if the tread surface 111 has a high lift higher than the height d, it is shielded from light and cannot receive the detection wave.

  While the escalator 100 is traveling at the time of inspection, the treads 111 of the plurality of steps 106 are continuously inspected, and the electric signal detected by the receiving device 220 is associated with time, so that which of the traveling directions of the step 106 of the escalator 100 It is easy to determine whether the position has risen.

  As described above, according to the present embodiment, the floating of the tread surface 111 in step 106 can be inspected with a simple configuration including the irradiation device 210, the receiving device 220, and the signal processing device 250. Furthermore, since the irradiation of the laser beam between the ends in the width direction in step 106 is realized by the reflection units 212 and 222, the apparatus does not need to be large and does not need to be built in the escalator 100. Therefore, the transportation is easy, and the tread surface 111 in the step 106 can be inspected by attaching an external device during the inspection. For this reason, according to the present embodiment, the floating of the steps of the passenger conveyor can be accurately detected with a detachable, small, and simple configuration, and the floating of the tread 111 of the step 106 of the escalator 100 without the existing inspection device can be detected. Can also be tested.

<Modification>
Note that the detection wave output from the irradiation device 210 may have a known width in the height direction, for example. By using such a detection wave, the state (lift) of step 106 can be detected in more detail.

  For example, a detection wave having a predetermined width is realized by a plurality of laser beams 261. In this case, as illustrated in FIG. 6A, the detection wave generation output unit 211 generates a light beam of a plurality of parallel laser beams 261 and emits the light beam to the reflection unit 212.

  The reflecting unit 212 reflects each of the emitted laser beams 261 so that each of the beams is directed horizontally to the reflecting unit 222 and is arranged in parallel in the height direction (z-axis direction). That is, each light is reflected so as to reach the reflector 222 horizontally at different heights.

  By using such a laser beam 261, for example, as shown in FIG. 6B and FIG. 6C, the receiving device 220 receives the laser light in accordance with the floating height of the cleat 114 constituting the tread surface 111. The amount of the emitted laser light 261 changes.

  6 (a) to 6 (c), the demarcation cleat 115 is also shown at the same height as the cleat 114.

  The receiving device 220 outputs an electric signal having an intensity corresponding to the received light amount to the signal processing device 250. Thus, the signal processing device 250 obtains different signal strengths depending on the degree of floating of the tread surface 111.

  FIG. 7 shows an example of the processing result output from the signal processing device 250 in this modification. Note that c1, c2, and c3 are identification numbers of the respective steps, as in the example of FIG.

  As shown in the figure, it can be seen that the tread surface 111 of c3, which is the third step 106, has a region that protrudes partly in the traveling direction. Further, it can be seen that the tread surface 111 of c4, which is the fourth step 106, has a low lift overall in the traveling direction.

  By using such a laser beam 261, it is possible to specify the degree of floating of the tread surface 111 as described above. Therefore, more detailed analysis can be performed using the information obtained by the signal processing device 250.

  For example, as shown in FIG. 7, a threshold may be provided as a plurality of evaluation criteria for the signal strength, and the signal processing device 250 may output information indicating the threshold along with the time-series change of the signal strength. For example, in the example of FIG. 7, a first threshold value T1 and a second threshold value T2 smaller than the first threshold value T1 are set and displayed.

  Further, if the signal strength is equal to or greater than the first threshold T1, the signal is normal. If the signal intensity is less than the first threshold T1 and equal to or greater than the second threshold T2, there is a sign of abnormality. May also be output together.

  Further, in the above embodiment, the signal processing device 250 calculates the signal strength from the received electric signal and outputs the calculated signal strength in a time-series manner. However, the present invention is not limited to this. For example, a determination of abnormal or normal may be made, and a result of the determination may be output.

  For example, in the above embodiment, when an electric signal is not received at a predetermined time interval, it is determined that there is an abnormality. Then, during that time, the output unit 252 may output an output indicating an abnormality. For example, the sound is output by a sound such as a buzzer or a warning lamp is turned on.

  In the case of the above modification, for example, each time the processing unit 251 calculates the signal strength, the signal is compared with the first threshold T1 and the second threshold T2, and depending on the comparison result, any one of normal, predictive, and abnormal is determined. May be determined, and a result of the determination may be output.

  The output is performed in a different manner according to each result, for example, by sound or lighting of a warning lamp. For example, in the example of FIG. 7, a blue lamp is lit when the signal intensity is in the normal range, a yellow lamp is lit when the signal is in the predictive range, and a red lamp is lit when the signal intensity is in the abnormal range.

  In the above-described embodiment, the case where the irradiation device 210 and the reception device 220 are separately provided has been described as an example. However, both may be connected via a connecting member 270 as shown in FIG.

  For example, the connection member 270 connects members arranged on the landing 112 during use. Specifically, the fixing portion 231 of the irradiation-side fixing device 230 and the fixing portion 241 of the receiving-side fixing device 240 are connected.

  Note that the connecting member 270 may include an adjustment mechanism that can adjust the length in the longitudinal direction, and may adjust the distance between the fixing portion 231 and the fixing portion 241. Thereby, the distance between the fixed part 231 and the fixed part 241 is adjusted according to the width of the step 106. The connection member 270 may be detachable, and a plurality of lengths of the connection member 270 may be prepared.

  By providing such a connecting member 270, the arrangement of the step inspection device 200 becomes easy, and the labor of the inspector at the time of use is reduced. Further, since the irradiation device 210 and the receiving device 220 are fixed in advance, the arrangement accuracy of both devices in the traveling direction is improved.

  Further, in the above-described embodiment, the case where the fixing portion 231 and the fixing portion 241 are respectively fixed to the screw holes for stopping the comb plate has been described as an example. However, the fixing method is not limited to this. For example, you may comprise so that it may attach to the landing 112 with a magnet or a suction cup.

  In the above-described embodiment, the irradiation device 210 and the reception device 220 include the reflection units 212 and 222, respectively. The reflection units 212 and 222 use the laser from one end in the width direction of step 106 to the other end. Although light is applied, the method is not limited to this method. For example, it may be realized by a flexible member such as an optical fiber.

  In addition, the support member that fixes the reflection unit 212 and the reflection unit 222 may be connected to be able to vibrate vertically.

  Further, in the above embodiment, the case where the laser beam is used as the detection wave has been described as an example, but the detection wave is not limited to this. For example, natural light such as visible light may be used.

  In each of the above embodiments, each function of the signal processing device 250 is realized by the CPU executing the program, but the present invention is not limited to this. For example, all or some of the functions may be realized by hardware such as an ASIC (Application Specific Integrated Circuit) and an FPGA (field-programmable gate array).

  Further, the present invention is not limited to the above-described embodiments and modifications, but includes various modifications. Each embodiment is for describing the present invention in an easy-to-understand manner, and the present invention is not necessarily limited to those having all the configurations described above.

  Further, the present invention can take various other applied examples and modified examples without departing from the gist of the present invention described in the claims. In addition, control lines and information lines are shown as necessary for the description, and do not necessarily indicate all control lines and information lines on a product. In fact, it can be considered that almost all components are connected to each other.

100: Escalator, 101: Drive motor, 102: Reduction gear, 103: Driving chain, 104: Terminal gear, 105: Terminal gear bearing, 106: Step, 107: Step chain, 108: Handrail, 109: Handrail drive , 110: handrail drive chain, 111: tread, 112: landing, 113: tread, 114: cleat, 115: demarcation cleat, 116: step
200: Step inspection device, 201: Communication line, 210: Irradiation device, 211: Detection wave generation / output unit, 212: Reflection unit, 220: Receiving device, 221: Detection wave reception conversion unit, 222: Reflection unit, 230: Irradiation Side fixing device, 231: fixed portion, 232: device supporting portion, 240: receiving side fixing device, 241: fixed portion, 242: device supporting portion, 250: signal processing device, 251: processing portion, 252: output portion, 253 : Database, 254: display device, 255a: light shielding, 255b: light shielding, 260: laser light, 261: laser light, 270: connecting member

Claims (8)

A step lift inspection device that detects a lift of a tread of a step of a passenger conveyor,
At a predetermined height, a horizontal detection wave is arranged on the tread surface from a first end which is one end in the width direction of the step and a second end which is the other end in the width direction of the step. An irradiation device for irradiating toward the end,
A receiving device that is arranged on the tread and receives the detection wave irradiated from the irradiation device at the second end, converts the electric wave into an electric signal, and outputs the electric signal.
Acquiring the electric signal output by the receiving device, and a signal processing device that generates and outputs information indicating the presence or absence of floating of the tread of the step,
The step floating inspection device, wherein the predetermined height is equal to or less than a floating height of a tread of the step to be detected. The step floating inspection device according to claim 1,
The irradiation device,
A detection wave generation output unit that generates and outputs the detection wave,
A first reflection unit disposed at the first end, the traveling direction of the detection wave output by the detection wave generation output unit, at the predetermined height, a first reflection unit that converts the horizontal direction by reflection,
The receiving device,
A detection wave reception conversion unit that converts the detection wave into the electric signal,
A second reflection portion disposed at a position of the second end portion facing the first reflection portion and guiding the detection wave to the detection wave reception conversion portion by reflection. apparatus. The step lift inspection device according to claim 1 or 2,
The irradiating device irradiates the detection wave continuously for a predetermined period while the passenger conveyor is traveling,
The signal processing device calculates the signal strength of the acquired electric signal and associates the acquired time with the acquired time, and the irradiation device emits the detection wave at the time and the traveling direction on the step. A step floating inspection apparatus for specifying a position and associating the position with the signal strength. The step floating inspection device according to claim 3,
The signal processing device, wherein the value of the signal strength when the electric signal is received is a predetermined value, and the signal strength when the electric signal is not received is 0. Lift inspection equipment. The step floating inspection device according to claim 3,
The detection wave has a predetermined width in a height direction,
The step floating inspection apparatus, wherein the signal processing device outputs the signal strength together with a plurality of levels of evaluation criteria provided according to the value of the signal strength. The step floating inspection device according to claim 1,
A first fixing device, one end of which is attached to the irradiating device, and the other end is arranged at the landing of the passenger conveyor, and holds the irradiating device on the tread;
A second fixing device, one end of which is attached to the receiving device, the other end is arranged at the landing, and the receiving device is held on the tread surface;
A step floating inspection device characterized by the above-mentioned. The step floating inspection device according to claim 6, wherein
The said 1st fixing device and the said 2nd fixing device are independent, The step floating inspection device characterized by the above-mentioned. The step floating inspection device according to claim 7,
The first fixing device and the second fixing device, an end arranged in the landing is connected by a connecting member,
The step floating inspection device, wherein the connecting member includes an adjusting mechanism for adjusting a distance between the first fixing device and the second fixing device.