WO2016027342A1 - Handrail abnormality detection system for passenger conveyor - Google Patents

Handrail abnormality detection system for passenger conveyor Download PDF

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Publication number
WO2016027342A1
WO2016027342A1 PCT/JP2014/071863 JP2014071863W WO2016027342A1 WO 2016027342 A1 WO2016027342 A1 WO 2016027342A1 JP 2014071863 W JP2014071863 W JP 2014071863W WO 2016027342 A1 WO2016027342 A1 WO 2016027342A1
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WO
WIPO (PCT)
Prior art keywords
handrail
distance
detection device
detection
edge
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PCT/JP2014/071863
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French (fr)
Japanese (ja)
Inventor
酒井　大輔
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三菱電機株式会社
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Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2014/071863 priority Critical patent/WO2016027342A1/en
Publication of WO2016027342A1 publication Critical patent/WO2016027342A1/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B29/00—Safety devices of escalators or moving walkways
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B31/00—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning
    • B66B31/02—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning for handrails

Definitions

  • the present invention relates to a handrail abnormality detection system for passenger conveyors.
  • Patent Document 1 describes a handrail management device for passenger conveyors.
  • the handrail management device includes an illuminator that illuminates the inside of the handrail having a C-shaped cross section, and an image recognition device that is disposed outside the handrail.
  • the handrail management device detects a crack generated in the handrail when the image recognition device detects light from the illuminator.
  • the present invention has been made to solve the above problems.
  • the purpose is to provide a handrail abnormality detection system for a passenger conveyor that can detect a crack generated in a handrail regardless of the size and shape.
  • the handrail abnormality detection system for a passenger conveyor is provided inside the path of a handrail that circulates inward with the edges formed on both sides of the opening in the C-shaped cross section, and the thickness of the edges Based on the distance detection device that detects the distance to the edge in the thickness direction of the edge, and the distance to the edge in the thickness direction of the edge detected by the distance detection device. And a control device for detecting an abnormality of the handrail.
  • the control device in the present invention detects an abnormality of the handrail based on the detection distance by the distance detection device. For this reason, according to this invention, the crack which generate
  • Embodiment 1 As an example of a passenger conveyor, a down escalator used for movement from an upper floor to a lower floor will be specifically described. Description of other passenger conveyors such as uphill escalators and moving walkways is omitted.
  • FIG. 1 is a configuration diagram of a passenger conveyor handrail abnormality detection system according to the first embodiment.
  • FIG. 1 an example of the configuration of the handrail abnormality detection system applied to the descending escalator will be described with reference to FIG.
  • the escalator has an upper floor horizontal section, an inclined section and a lower floor horizontal section.
  • the upper floor side horizontal portion is arranged on the upper floor.
  • the inclined portion is bridged between the upper floor and the lower floor.
  • the lower horizontal part is arranged on the lower floor.
  • the escalator includes a truss 1, an upper entrance / exit 2, and a lower entrance / exit 3.
  • the escalator includes a plurality of steps and an endless step chain (not shown).
  • the escalator includes a handrail 4.
  • the truss 1 is provided over the upper floor side horizontal part, the inclined part, and the lower floor side horizontal part.
  • the upper entrance / exit 2 is provided in the horizontal part on the upper floor side.
  • the lower entrance / exit 3 is provided in the lower horizontal part.
  • the plurality of steps are provided endlessly between the upper entrance / exit 2 and the lower entrance 3.
  • the step chain connects a plurality of steps in an endless manner.
  • the handrail 4 is provided on both sides of the step along the direction in which the plurality of steps are connected.
  • the handrail 4 is provided continuously from the upper floor side horizontal part to the lower floor side horizontal part.
  • the handrail 4 is formed in an endless shape.
  • the step chain and multiple steps circulate between the upper and lower floors.
  • the plurality of steps descend the inclined portion from the upper floor toward the lower floor outside the truss 1.
  • the plurality of steps ascend the inclined portion from the lower floor to the upper floor inside the truss 1.
  • the handrail 4 circulates between the upper floor and the lower floor in synchronization with a plurality of steps.
  • the arrow along the handrail 4 in FIG. 1 indicates the moving direction of the handrail 4 of the descending escalator.
  • the handrail 4 moves in the inclined portion from the upper floor toward the lower floor outside the truss 1.
  • the handrail 4 passes through, for example, the interior of the truss 1 when moving the inclined portion from the lower floor toward the upper floor.
  • the handrail 4 is inclined when moving on the inclined portion.
  • the handrail 4 is in a horizontal state when moving on the upper floor side horizontal part and the lower floor side horizontal part.
  • the handrail 4 is curved at a position corresponding to a continuous portion of the upper floor side horizontal portion and the inclined portion in the closed path that circulates and moves. Moreover, the handrail 4 curves in the path
  • the part of the handrail 4 that faces the outside of the closed path in which the handrail 4 circulates is curved so as to be extended when the handrail 4 moves from the upper horizontal part to the inclined part. Further, the portion of the handrail 4 that faces the outside of the route is curved so as to be extended when the handrail 4 moves from the lower horizontal portion to the inclined portion. Of the parts of the handrail 4, the part facing the inside of the route is curved so as to be extended when the handrail 4 moves from the inclined part to the lower horizontal part. Further, a portion of the handrail 4 facing toward the inside of the route is curved so as to be extended when the handrail 4 moves from the inclined portion to the upper horizontal portion.
  • the handrail abnormality detection system includes a distance detection device 5 and a control device 6.
  • the distance detection device 5 and the control device 6 are provided inside the truss 1, for example.
  • the distance detection device 5 is fixed inside a closed path along which the handrail 4 circulates.
  • the distance detecting device 5 is opposed to a portion of the handrail 4 facing toward the inside of the route.
  • the distance detection device 5 is disposed at a position corresponding to a continuous portion of the upper floor side horizontal portion and the inclined portion.
  • the distance detection device 5 is disposed above a portion of the handrail 4 that is curved so as to be extended.
  • the distance detection device 5 detects the distance to the handrail 4 located below without contact.
  • the distance detection device 5 is, for example, an optical distance sensor based on a triangulation method.
  • the control device 6 transmits a signal to the monitoring room based on the distance detected by the distance detection device 5.
  • FIG. 2 is a diagram showing a positional relationship between the distance detection device 5 and the handrail 4 in the first embodiment.
  • FIG. 2 shows the distance detection device 5 in FIG. 1 and the handrail 4 positioned below the distance detection device 5.
  • the handrail 4 is represented as a cross-sectional view seen from the moving direction.
  • the handrail 4 has a C-shaped cross section viewed from the moving direction.
  • the handrail 4 is formed in a shape having an opening in the cross-sectional shape.
  • the opening is located at the center in the width direction of the handrail 4.
  • the distance detection device 5 is disposed outside the opening in the cross-sectional shape.
  • the distance detection device 5 is provided at a position facing the edge formed on both sides of the opening.
  • the distance detection device 5 is provided above the edge.
  • the distance detection device 5 faces the handrail 4 in the thickness direction of the edge.
  • the edge portions formed on both sides of the opening are also simply referred to as “opening edge portions”.
  • the distance detection device 5 includes a first detection device 5a and a second detection device 5b.
  • the first detection device 5a is provided at a position facing one of the edges of the opening.
  • the first detection device 5a detects the distance to the one edge.
  • the second detection device 5b is provided at a position facing the other of the edges of the opening.
  • the second detection device 5b detects the distance to the other edge.
  • FIG. 3 is a perspective view showing an example of a state in which a crack has occurred in the handrail of the passenger conveyor.
  • the handrail 4 shown in FIG. 3 has a crack 7.
  • the crack 7 is generated at the edge of the opening of the cross-sectional shape viewed from the moving direction of the handrail 4.
  • the crack 7 occurs at the upper end of the handrail 4. That is, the crack 7 is generated at a position closer to the inside of the path along which the handrail 4 circulates in the thickness direction of the edge of the opening.
  • FIG. 4 is a diagram illustrating an example of distance detection by the distance detection device 5 according to the first embodiment.
  • FIG. 4 shows a case where a crack 7 as shown in FIG.
  • the crack 7 shown in the upper part of FIG. 4 is different in size from the crack 7 shown in the lower part of FIG.
  • the crack 7 shown in the upper stage substantially crosses the upper end of the handrail 4 in the width direction of the handrail 4.
  • the crack 7 shown in the lower stage reaches the middle of the upper end of the handrail 4 in the width direction of the handrail 4.
  • the depth of the crack 7 in the thickness direction of the edge of the opening is greater in the case shown in the upper stage than in the lower stage.
  • the distance detection device 5 shows the relationship between the passage of time and the distance detected by the distance detector 5 on the right side of FIG.
  • the detection distance becomes longer by the depth of the crack 7 when the crack 7 faces the distance detection device 5.
  • the occurrence of the crack 7 can be detected as a change in the detection distance by the distance detection device 5. Since the distance detection device 5 detects the distance in the thickness direction of the edge of the opening, the change amount of the detection distance is larger in the case shown in the upper stage than in the lower stage.
  • FIG. 5 is a configuration diagram of the control device 6 in the first embodiment. As shown in FIG. 5, the control device 6 includes a storage unit 8, a determination unit 9, and a transmission unit 10.
  • the storage unit 8 stores a reference level and a plurality of detection levels.
  • the reference level is, for example, a reference value set in advance as the distance between the handrail 4 having no cracks and deposits and the distance detection device 5. That is, the reference level is, for example, a normal detection distance when the handrail 4 has no abnormality such as a crack or a deposit.
  • As the detection level for example, a first value larger than the reference value and a second value smaller than the reference level are set in advance.
  • the determination unit 9 compares the detection distance by the distance detection device 5 with the detection level stored in the storage unit 8. The determination unit 9 determines whether or not the detection distance is greater than or equal to the first value. The determination unit 9 determines whether or not the detection distance is equal to or less than the second value.
  • the transmission unit 10 transmits a signal to the monitoring room based on the determination result by the determination unit 9.
  • the transmitting unit 10 can transmit different signals corresponding to the detection levels.
  • the transmission unit 10 transmits the first signal when the determination unit 9 determines that the detection distance is equal to or greater than the first value.
  • the first signal indicates, for example, that the handrail 4 is cracked.
  • the transmission unit 10 transmits the second signal when the determination unit 9 determines that the detection distance is equal to or less than the second value.
  • the second signal indicates, for example, the presence of a deposit on the surface of the handrail 4.
  • the transmitting unit 10 determines which of the first signal and the second signal Also does not send. In this way, the control device 6 detects an abnormality of the handrail 4 based on the detection distance by the distance detection device 5.
  • FIG. 6 is an enlarged view of the periphery of the distance detection device 5 shown in FIG.
  • An arrow along the handrail 4 in FIG. 6 indicates the moving direction of the handrail 4.
  • FIG. 6 shows, as an example, a case where cracks 7 a and cracks 7 b are generated in the handrail 4 and the deposit 11 is adhered.
  • the depth of the crack 7b in the thickness direction of the edge of the opening is larger than the depth of the crack 7a.
  • These cracks and deposits are arranged in the order of cracks 7 a, cracks 7 b, and deposits 11 from the front in the moving direction of the handrail 4.
  • FIG. 7 is a diagram showing the relationship between the passage of time and the distance detected by the distance detector 5 in the case shown in FIG.
  • FIG. 7 shows, as an example, a case where three of detection level A, detection level B, and detection level C are set as detection levels.
  • the detection level A is higher than the reference level.
  • the detection level B is larger than the reference level and smaller than the detection level A.
  • the detection level C is smaller than the reference level.
  • the detection distance at time (a) shown in Fig. 7 corresponds to the crack 7a.
  • the detection distance at time (a) is greater than or equal to detection level B.
  • the detection distance at time (b) corresponds to the crack 7b.
  • the detection distance at time (b) is equal to or higher than detection level A.
  • the detection distance at time (c) corresponds to the deposit 11.
  • the detection distance at time (c) is below detection level C.
  • FIG. 8 is a flowchart showing the operation of the passenger conveyor handrail abnormality detection system in the first embodiment.
  • FIG. 8 shows an operation when the three detection levels shown in FIG. 7 are set as an example. The operation of the handrail abnormality detection system will be described below with reference to FIG.
  • the determination unit 9 determines whether or not the detection distance is equal to or greater than the detection level A (step S102).
  • the transmission unit 10 transmits a signal A to the monitoring room (step S103).
  • the signal A indicates, for example, that the handrail 4 needs to be repaired because a large crack has occurred in the handrail 4.
  • step S104 determines whether the detection distance is equal to or greater than the detection level B.
  • the transmission unit 10 transmits a signal B to the monitoring room (step S105).
  • the signal B indicates, for example, that a small crack has occurred in the handrail 4 to call attention.
  • step S106 determines whether the detection distance is equal to or less than the detection level C.
  • the transmission unit 10 transmits a signal C to the monitoring room (step S107).
  • the signal C indicates, for example, that the handrail 4 needs to be cleaned because there are deposits on the surface of the handrail 4. If it is determined in step S106 that the detection distance is not equal to or less than the detection level C, the processing from step S101 is repeated.
  • the cross-sectional shape of the handrail 4 viewed from the moving direction of the handrail 4 is C-shaped.
  • the distance detection device 5 faces the handrail 4 in the thickness direction of the edge of the opening in the cross-sectional shape.
  • the distance detection device 5 detects the distance to the edge in the thickness direction of the edge of the opening.
  • the control device 6 detects an abnormality of the handrail 4 based on the distance detected by the distance detection device 5. That is, the control device 6 detects the abnormality of the handrail 4 based on the distance from the distance detection device 5 to the edge in the thickness direction of the edge of the opening. For this reason, for example, a crack generated in the handrail 4 can be detected regardless of the size and shape. Moreover, for example, the deposits present on the surface of the handrail 4 can also be detected.
  • the handrail 4 circulates with the edge of the opening facing inward.
  • the distance detection device 5 is provided inside the route of the handrail 4 that circulates and moves.
  • the distance detection device 5 is provided at a position facing the edge in the thickness direction of the edge of the opening. That is, the distance detection device 5 faces a portion where the crack of the handrail 4 is likely to occur. For this reason, even if a crack occurs in the handrail 4, it can be detected quickly before the crack expands.
  • the distance detection device 5 includes a first detection device 5a and a second detection device 5b.
  • the first detection device 5 a is provided at a position facing one of the edge portions formed on both sides of the opening of the cross-sectional shape of the handrail 4 when viewed from the moving direction of the handrail 4.
  • the 2nd detection apparatus 5b is provided in the position which opposes the other among the edge parts formed in the both sides of the said opening. For this reason, the crack which generate
  • the storage unit 8 stores a first value larger than a preset reference value and a second value smaller than the reference value.
  • the transmission unit 10 transmits the first signal when the determination unit 9 determines that the detection distance is equal to or greater than the first value. Thereby, it is detected that the handrail 4 is cracked based on the detection distance being longer than normal.
  • the transmission part 10 transmits a 2nd signal, when the determination part 9 determines with a detection distance being below a 2nd value. Thereby, based on the fact that the detection distance is shorter than normal, for example, it is detected that the deposit is present on the surface of the handrail 4. For this reason, by detecting the distance to the handrail 4 by the distance detection device 5, both cracks and deposits can be detected as an abnormality of the handrail 4.
  • the determination unit 9 compares the detection distance with the detection distance in order from the largest value among the plurality of detection levels. That is, the determination unit 9 preferentially determines whether or not a large crack has occurred in the handrail 4. For this reason, even if the handrail 4 has a plurality of abnormalities, a large crack can be detected quickly.
  • the distance detection device 5 is arranged corresponding to the position where the handrail 4 is curved in the path along which the handrail 4 circulates.
  • the distance detection device 5 is disposed so as to face a portion that is curved so as to be extended among the portions of the handrail 4.
  • the portion of the handrail 4 facing the distance detection device 5 is in a state where the crack is widened by being bent so as to be extended. For this reason, the crack which generate
  • the transmitter 10 when the determination unit 9 does not determine that the detection distance is equal to or greater than the first value and is not equal to or less than the second value, the first signal and the second signal Other signals that are not any of the signals may be transmitted.
  • Another signal is a signal which shows that there is no abnormality in the handrail 4, for example.
  • a plurality of values larger than the reference value may be set as the detection level in the present invention.
  • a different signal can be transmitted from the transmission unit 10 according to the size of the crack generated in the handrail 4. That is, it is possible to call attention to the monitoring room with contents corresponding to the degree of deterioration of the handrail 4.
  • a plurality of values smaller than the reference value may be set as the detection level in the present invention.
  • different signals can be transmitted from the transmission unit 10 in accordance with the size of the adhered matter attached to the handrail 4. That is, it is possible to call attention to the monitoring room with the content corresponding to the degree of dirt on the handrail 4.
  • the handrail abnormality detection system for a passenger conveyor can be applied to a passenger conveyor provided with a moving handrail.

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  • Escalators And Moving Walkways (AREA)

Abstract

Provided is a handrail abnormality detection system for a passenger conveyor, the handrail abnormality detection system being capable of detecting a crack in a handrail regardless of the size, shape, etc. of the crack. This handrail abnormality detection system for a passenger conveyor is provided with: a distance detection device 5 which is provided inside the path of a handrail 4 moving and circulating while edges formed on both sides of an opening in a C-shaped cross-sectional shape are faced inward, faces the edges in the thickness direction of the edges, and detects the distance to the edges in the thickness direction of the edges; and a control device 6 for detecting an abnormality in the handrail 4 on the basis of the distance to the edges in the thickness direction thereof detected by the distance detection device 5.

Description

乗客コンベアの手摺異常検出システムPassenger conveyor handrail abnormality detection system
　本発明は、乗客コンベアの手摺異常検出システムに関するものである。 The present invention relates to a handrail abnormality detection system for passenger conveyors.
　下記特許文献１には、乗客コンベアの手摺管理装置が記載されている。手摺管理装置は、断面がＣ字状に形成された手摺の内側を照らす照明器と、手摺の外側に配置された画像認識装置と、を備えている。手摺管理装置は、画像認識装置が照明器からの光を検出することで、手摺に発生した亀裂を検出する。 Patent Document 1 below describes a handrail management device for passenger conveyors. The handrail management device includes an illuminator that illuminates the inside of the handrail having a C-shaped cross section, and an image recognition device that is disposed outside the handrail. The handrail management device detects a crack generated in the handrail when the image recognition device detects light from the illuminator.
日本特開平４－１７９６９４号公報Japanese Unexamined Patent Publication No. 4-179694
　特許文献１に記載の乗客コンベアの手摺管理装置では、照明器から画像認識装置に向かって一直線に光が通過可能な亀裂しか検出できない。このため、手摺の内側から外側まで達しない大きさの亀裂及び曲線的な形状の亀裂等を検出することができない。 In the passenger conveyor handrail management device described in Patent Document 1, only cracks that allow light to pass in a straight line from the illuminator to the image recognition device can be detected. For this reason, a crack having a size that does not reach from the inside to the outside of the handrail, a crack having a curved shape, or the like cannot be detected.
　本発明は、上記の課題を解決するためになされた。その目的は、手摺に発生した亀裂を大きさ及び形状等に関係なく検出できる乗客コンベアの手摺異常検出システムを提供することである。 The present invention has been made to solve the above problems. The purpose is to provide a handrail abnormality detection system for a passenger conveyor that can detect a crack generated in a handrail regardless of the size and shape.
　本発明に係る乗客コンベアの手摺異常検出システムは、Ｃ字状の断面形状における開口の両側に形成された縁部を内側に向けて循環移動する手摺の経路の内側に設けられ、縁部の厚さ方向において縁部に対向し、縁部の厚さ方向において縁部までの距離を検出する距離検出装置と、距離検出装置により検出された縁部の厚さ方向における縁部までの距離に基づいて手摺の異常を検出する制御装置と、を備えたものである。 The handrail abnormality detection system for a passenger conveyor according to the present invention is provided inside the path of a handrail that circulates inward with the edges formed on both sides of the opening in the C-shaped cross section, and the thickness of the edges Based on the distance detection device that detects the distance to the edge in the thickness direction of the edge, and the distance to the edge in the thickness direction of the edge detected by the distance detection device. And a control device for detecting an abnormality of the handrail.
　本発明における制御装置は、距離検出装置による検出距離に基づいて手摺の異常を検出する。このため、本発明によれば、手摺に発生した亀裂を大きさ及び形状等に関係なく検出することができる。 The control device in the present invention detects an abnormality of the handrail based on the detection distance by the distance detection device. For this reason, according to this invention, the crack which generate | occur | produced in the handrail can be detected irrespective of a magnitude | size, a shape, etc.
本発明の実施の形態１における乗客コンベアの手摺異常検出システムの構成図である。It is a block diagram of the handrail abnormality detection system of the passenger conveyor in Embodiment 1 of this invention. 本発明の実施の形態１における距離検出装置の配置を示す図である。It is a figure which shows arrangement | positioning of the distance detection apparatus in Embodiment 1 of this invention. 乗客コンベアの手摺に亀裂が発生した状態の例を示す斜視図である。It is a perspective view which shows the example of the state which the crack generate | occur | produced in the handrail of the passenger conveyor. 本発明の実施の形態１における距離検出装置による距離の検出の例を示す図である。It is a figure which shows the example of the detection of the distance by the distance detection apparatus in Embodiment 1 of this invention. 本発明の実施の形態１における制御装置の構成図であるIt is a block diagram of the control apparatus in Embodiment 1 of this invention. 図１に示す距離検出装置の周辺の拡大図である。It is an enlarged view of the periphery of the distance detection apparatus shown in FIG. 図６に示す場合における時間経過と距離検出装置による検出距離との関係を示す図である。It is a figure which shows the relationship between time passage in the case shown in FIG. 6, and the detection distance by a distance detection apparatus. 本発明の実施の形態１における乗客コンベアの手摺異常検出システムの動作を示すフローチャートである。It is a flowchart which shows operation | movement of the handrail abnormality detection system of the passenger conveyor in Embodiment 1 of this invention.
　添付の図面を参照して、本発明を詳細に説明する。各図では、同一又は相当する部分に同一の符号を付している。重複する説明は、適宜簡略化あるいは省略する。 The present invention will be described in detail with reference to the accompanying drawings. In each figure, the same or corresponding parts are denoted by the same reference numerals. The overlapping description will be simplified or omitted as appropriate.
実施の形態１．
　実施の形態１では、乗客コンベアの一例として、上階から下階への移動に利用される下りエスカレーターについて具体的に説明する。上りエスカレーター、動く歩道等、他の乗客コンベアについては説明を省略する。 Embodiment 1 FIG.
In Embodiment 1, as an example of a passenger conveyor, a down escalator used for movement from an upper floor to a lower floor will be specifically described. Description of other passenger conveyors such as uphill escalators and moving walkways is omitted.
　図１は、実施の形態１における乗客コンベアの手摺異常検出システムの構成図である。以下、図１を参照して、下りエスカレーターに適用された手摺異常検出システムの構成の一例について説明する。 FIG. 1 is a configuration diagram of a passenger conveyor handrail abnormality detection system according to the first embodiment. Hereinafter, an example of the configuration of the handrail abnormality detection system applied to the descending escalator will be described with reference to FIG.
　エスカレーターは、上階側水平部、傾斜部及び下階側水平部を有している。上階側水平部は、上階に配置されている。傾斜部は、上階と下階との間に架け渡されている。下階側水平部は、下階に配置されている。エスカレーターは、トラス１、上部乗降口２及び下部乗降口３を備えている。エスカレーターは、図示しない複数の踏段及び無端状の踏段チェーンを備えている。エスカレーターは、手摺４を備えている。トラス１は、上階側水平部、傾斜部及び下階側水平部にわたって設けられている。上部乗降口２は、上階側水平部に設けられている。下部乗降口３は、下階側水平部に設けられている。複数の踏段は、上部乗降口２と下部乗降口３との間において無端状に設けられている。踏段チェーンは、複数の踏段を無端状に連結している。手摺４は、複数の踏段が連結された方向に沿って、踏段の両側に設けられている。手摺４は、上階側水平部から下階側水平部まで連続して設けられている。手摺４は、無端状に形成されている。 The escalator has an upper floor horizontal section, an inclined section and a lower floor horizontal section. The upper floor side horizontal portion is arranged on the upper floor. The inclined portion is bridged between the upper floor and the lower floor. The lower horizontal part is arranged on the lower floor. The escalator includes a truss 1, an upper entrance / exit 2, and a lower entrance / exit 3. The escalator includes a plurality of steps and an endless step chain (not shown). The escalator includes a handrail 4. The truss 1 is provided over the upper floor side horizontal part, the inclined part, and the lower floor side horizontal part. The upper entrance / exit 2 is provided in the horizontal part on the upper floor side. The lower entrance / exit 3 is provided in the lower horizontal part. The plurality of steps are provided endlessly between the upper entrance / exit 2 and the lower entrance 3. The step chain connects a plurality of steps in an endless manner. The handrail 4 is provided on both sides of the step along the direction in which the plurality of steps are connected. The handrail 4 is provided continuously from the upper floor side horizontal part to the lower floor side horizontal part. The handrail 4 is formed in an endless shape.
　踏段チェーン及び複数の踏段は、上階と下階との間を循環移動する。複数の踏段は、トラス１の外部において、上階から下階へ向かって傾斜部を下降する。複数の踏段は、トラス１の内部において、下階から上階へ向かって傾斜部を上昇する。 The step chain and multiple steps circulate between the upper and lower floors. The plurality of steps descend the inclined portion from the upper floor toward the lower floor outside the truss 1. The plurality of steps ascend the inclined portion from the lower floor to the upper floor inside the truss 1.
　手摺４は、複数の踏段と同期して、上階と下階との間を循環移動する。図１における手摺４に沿った矢印は、下りエスカレーターの手摺４の移動方向を示している。手摺４は、トラス１の外部において、上階から下階へ向かって傾斜部を移動する。手摺４は、下階から上階へ向かって傾斜部を移動する際に、例えばトラス１の内部を通る。手摺４は、傾斜部を移動する際に傾斜した状態となる。手摺４は、上階側水平部及び下階側水平部を移動する際に水平な状態となる。このため、手摺４は、循環移動する閉じた経路において、上階側水平部と傾斜部との連続部に相当する位置で湾曲する。また、手摺４は、当該経路において、傾斜部と下階側水平部との連続部に相当する位置で湾曲する。 The handrail 4 circulates between the upper floor and the lower floor in synchronization with a plurality of steps. The arrow along the handrail 4 in FIG. 1 indicates the moving direction of the handrail 4 of the descending escalator. The handrail 4 moves in the inclined portion from the upper floor toward the lower floor outside the truss 1. The handrail 4 passes through, for example, the interior of the truss 1 when moving the inclined portion from the lower floor toward the upper floor. The handrail 4 is inclined when moving on the inclined portion. The handrail 4 is in a horizontal state when moving on the upper floor side horizontal part and the lower floor side horizontal part. For this reason, the handrail 4 is curved at a position corresponding to a continuous portion of the upper floor side horizontal portion and the inclined portion in the closed path that circulates and moves. Moreover, the handrail 4 curves in the path | route in the position corresponded to the continuous part of an inclination part and a lower floor side horizontal part.
　手摺４の部位のうち手摺４が循環移動する閉じた経路の外側を向いた部位は、手摺４が上階側水平部から傾斜部に移動する際に、引き延ばされるように湾曲する。また、手摺４の部位のうち当該経路の外側を向いた部位は、手摺４が下階側水平部から傾斜部に移動する際に、引き延ばされるように湾曲する。手摺４の部位のうち当該経路の内側を向いた部位は、手摺４が傾斜部から下階側水平部に移動する際に、引き延ばされるように湾曲する。また、手摺４の部位のうち当該経路の内側を向いた部位は、手摺４が傾斜部から上階側水平部に移動する際に、引き延ばされるように湾曲する。 The part of the handrail 4 that faces the outside of the closed path in which the handrail 4 circulates is curved so as to be extended when the handrail 4 moves from the upper horizontal part to the inclined part. Further, the portion of the handrail 4 that faces the outside of the route is curved so as to be extended when the handrail 4 moves from the lower horizontal portion to the inclined portion. Of the parts of the handrail 4, the part facing the inside of the route is curved so as to be extended when the handrail 4 moves from the inclined part to the lower horizontal part. Further, a portion of the handrail 4 facing toward the inside of the route is curved so as to be extended when the handrail 4 moves from the inclined portion to the upper horizontal portion.
　図１に示すように、手摺異常検出システムは、距離検出装置５及び制御装置６を備えている。距離検出装置５及び制御装置６は、例えば、トラス１の内部に設けられている。距離検出装置５は、手摺４が循環移動する閉じた経路の内側に固定されている。距離検出装置５は、手摺４の部位のうち当該経路の内側を向いた部位と対向している。距離検出装置５は、上階側水平部と傾斜部との連続部に相当する位置に配置されている。距離検出装置５は、手摺４の部位のうち引き延ばされるように湾曲する部位の上方に配置されている。 As shown in FIG. 1, the handrail abnormality detection system includes a distance detection device 5 and a control device 6. The distance detection device 5 and the control device 6 are provided inside the truss 1, for example. The distance detection device 5 is fixed inside a closed path along which the handrail 4 circulates. The distance detecting device 5 is opposed to a portion of the handrail 4 facing toward the inside of the route. The distance detection device 5 is disposed at a position corresponding to a continuous portion of the upper floor side horizontal portion and the inclined portion. The distance detection device 5 is disposed above a portion of the handrail 4 that is curved so as to be extended.
　距離検出装置５は、下方に位置する手摺４までの距離を非接触で検出する。距離検出装置５は、例えば、三角測量方式による光学式距離センサーである。制御装置６は、距離検出装置５による検出距離に基づいて、監視室に対して信号を発信する。 The distance detection device 5 detects the distance to the handrail 4 located below without contact. The distance detection device 5 is, for example, an optical distance sensor based on a triangulation method. The control device 6 transmits a signal to the monitoring room based on the distance detected by the distance detection device 5.
　図２は、実施の形態１における距離検出装置５と手摺４の位置関係を示す図である。図２には、図１における距離検出装置５及び距離検出装置５の下方に位置する手摺４が示されている。図２において、手摺４は、移動方向から見た断面図として表されている。 FIG. 2 is a diagram showing a positional relationship between the distance detection device 5 and the handrail 4 in the first embodiment. FIG. 2 shows the distance detection device 5 in FIG. 1 and the handrail 4 positioned below the distance detection device 5. In FIG. 2, the handrail 4 is represented as a cross-sectional view seen from the moving direction.
　図２に示すように、手摺４は、移動方向から見た断面形状がＣ字状を呈している。手摺４は、当該断面形状において開口を有する形状に形成されている。当該開口は、手摺４の幅方向における中央に位置している。距離検出装置５は、当該断面形状において当該開口よりも外側に配置されている。距離検出装置５は、当該開口の両側に形成された縁部に対向する位置に設けられている。距離検出装置５は、当該縁部の上方に設けられている。距離検出装置５は、当該縁部の厚さ方向において、手摺４と対向している。なお、以下の記載では、当該開口の両側に形成された縁部を単に「開口の縁部」とも略称する。 As shown in FIG. 2, the handrail 4 has a C-shaped cross section viewed from the moving direction. The handrail 4 is formed in a shape having an opening in the cross-sectional shape. The opening is located at the center in the width direction of the handrail 4. The distance detection device 5 is disposed outside the opening in the cross-sectional shape. The distance detection device 5 is provided at a position facing the edge formed on both sides of the opening. The distance detection device 5 is provided above the edge. The distance detection device 5 faces the handrail 4 in the thickness direction of the edge. In the following description, the edge portions formed on both sides of the opening are also simply referred to as “opening edge portions”.
　距離検出装置５は、第１検出装置５ａ及び第２検出装置５ｂを備えている。第１検出装置５ａは、開口の縁部のうち一方に対向する位置に設けられている。第１検出装置５ａは、当該一方の縁部までの距離を検出する。第２検出装置５ｂは、開口の縁部のうち他方に対向する位置に設けられている。第２検出装置５ｂは、当該他方の縁部までの距離を検出する。 The distance detection device 5 includes a first detection device 5a and a second detection device 5b. The first detection device 5a is provided at a position facing one of the edges of the opening. The first detection device 5a detects the distance to the one edge. The second detection device 5b is provided at a position facing the other of the edges of the opening. The second detection device 5b detects the distance to the other edge.
　図３は、乗客コンベアの手摺に亀裂が発生した状態の例を示す斜視図である。図３に示す手摺４には、亀裂７が発生している。亀裂７は、手摺４の移動方向から見た断面形状が有する開口の縁部に発生している。亀裂７は、手摺４の上端に発生している。つまり、亀裂７は、開口の縁部の厚さ方向において、手摺４が循環移動する経路の内側寄りの位置に発生している。 FIG. 3 is a perspective view showing an example of a state in which a crack has occurred in the handrail of the passenger conveyor. The handrail 4 shown in FIG. 3 has a crack 7. The crack 7 is generated at the edge of the opening of the cross-sectional shape viewed from the moving direction of the handrail 4. The crack 7 occurs at the upper end of the handrail 4. That is, the crack 7 is generated at a position closer to the inside of the path along which the handrail 4 circulates in the thickness direction of the edge of the opening.
　図４は、実施の形態１における距離検出装置５による距離の検出の例を示す図である。図４は、図３に示すような亀裂７が手摺４に発生した場合について示している。 FIG. 4 is a diagram illustrating an example of distance detection by the distance detection device 5 according to the first embodiment. FIG. 4 shows a case where a crack 7 as shown in FIG.
　図４の上段に示す亀裂７と図４の下段に示す亀裂７とは、大きさが異なっている。上段に示す亀裂７は、手摺４の幅方向において、手摺４の上端をほぼ横断している。下段に示す亀裂７は、手摺４の幅方向において、手摺４の上端の中ごろまで達している。開口の縁部の厚さ方向における亀裂７の深さは、下段に示す場合よりも上段に示す場合の方が大きい。 The crack 7 shown in the upper part of FIG. 4 is different in size from the crack 7 shown in the lower part of FIG. The crack 7 shown in the upper stage substantially crosses the upper end of the handrail 4 in the width direction of the handrail 4. The crack 7 shown in the lower stage reaches the middle of the upper end of the handrail 4 in the width direction of the handrail 4. The depth of the crack 7 in the thickness direction of the edge of the opening is greater in the case shown in the upper stage than in the lower stage.
　図４の右側には、時間経過と距離検出装置５による検出距離との関係が示されている。手摺４が移動すると、亀裂７が距離検出装置５と対向したときに、亀裂７の深さだけ検出距離が長くなる。このため、亀裂７が発生していることは、距離検出装置５による検出距離の変化として検出可能である。距離検出装置５は開口の縁部の厚さ方向における距離を検出するため、検出距離の変化量は、下段に示す場合よりも上段に示す場合の方が大きい。 4 shows the relationship between the passage of time and the distance detected by the distance detector 5 on the right side of FIG. When the handrail 4 moves, the detection distance becomes longer by the depth of the crack 7 when the crack 7 faces the distance detection device 5. For this reason, the occurrence of the crack 7 can be detected as a change in the detection distance by the distance detection device 5. Since the distance detection device 5 detects the distance in the thickness direction of the edge of the opening, the change amount of the detection distance is larger in the case shown in the upper stage than in the lower stage.
　なお、手摺４の表面に付着物が存在する場合は、付着物が距離検出装置５と対向したときに、当該付着物の厚さだけ検出距離が短くなる。このため、手摺４の表面に付着物が存在することも、距離検出装置５による検出距離の変化として検出可能である。 In addition, when the deposit | attachment exists in the surface of the handrail 4, when a deposit | attachment opposes the distance detection apparatus 5, detection distance becomes short by the thickness of the said deposit | attachment. For this reason, it is possible to detect the presence of a deposit on the surface of the handrail 4 as a change in the detection distance by the distance detection device 5.
　図５は、実施の形態１における制御装置６の構成図である。図５に示すように、制御装置６は、記憶部８、判定部９及び発信部１０を備えている。 FIG. 5 is a configuration diagram of the control device 6 in the first embodiment. As shown in FIG. 5, the control device 6 includes a storage unit 8, a determination unit 9, and a transmission unit 10.
　記憶部８は、基準レベル及び複数の検出レベルを記憶している。基準レベルは、例えば、亀裂及び付着物等がない手摺４と距離検出装置５との距離として予め設定された基準値である。つまり、基準レベルは、例えば、手摺４に亀裂及び付着物等の異常がない場合における正常な検出距離である。検出レベルとしては、例えば、基準値よりも大きい第１の値及び基準レベルよりも小さい第２の値等が予め設定されている。 The storage unit 8 stores a reference level and a plurality of detection levels. The reference level is, for example, a reference value set in advance as the distance between the handrail 4 having no cracks and deposits and the distance detection device 5. That is, the reference level is, for example, a normal detection distance when the handrail 4 has no abnormality such as a crack or a deposit. As the detection level, for example, a first value larger than the reference value and a second value smaller than the reference level are set in advance.
　判定部９は、距離検出装置５による検出距離を記憶部８に記憶されている検出レベルと比較する。判定部９は、検出距離が第１の値以上であるか否かを判定する。判定部９は、検出距離が第２の値以下であるか否かを判定する。 The determination unit 9 compares the detection distance by the distance detection device 5 with the detection level stored in the storage unit 8. The determination unit 9 determines whether or not the detection distance is greater than or equal to the first value. The determination unit 9 determines whether or not the detection distance is equal to or less than the second value.
　発信部１０は、判定部９による判定結果に基づいて、監視室に対して信号を発信する。発信部１０は、検出レベルのそれぞれに対応した異なる信号を発信可能である。発信部１０は、判定部９によって検出距離が第１の値以上であると判定された場合に、第１の信号を発信する。第１の信号は、例えば、手摺４に亀裂が発生していること等を示すものである。発信部１０は、判定部９によって検出距離が第２の値以下であると判定された場合に、第２の信号を発信する。第２の信号は、例えば、手摺４の表面に付着物が存在すること等を示すものである。発信部１０は、判定部９によって検出距離が第１の値以上であると判定されず且つ第２の値以下であると判定されなかった場合は、第１の信号及び第２の信号のいずれも発信しない。このようにして、制御装置６は、距離検出装置５による検出距離に基づいて、手摺４の異常を検出する。 The transmission unit 10 transmits a signal to the monitoring room based on the determination result by the determination unit 9. The transmitting unit 10 can transmit different signals corresponding to the detection levels. The transmission unit 10 transmits the first signal when the determination unit 9 determines that the detection distance is equal to or greater than the first value. The first signal indicates, for example, that the handrail 4 is cracked. The transmission unit 10 transmits the second signal when the determination unit 9 determines that the detection distance is equal to or less than the second value. The second signal indicates, for example, the presence of a deposit on the surface of the handrail 4. When the determination unit 9 does not determine that the detection distance is equal to or greater than the first value and is not equal to or less than the second value, the transmitting unit 10 determines which of the first signal and the second signal Also does not send. In this way, the control device 6 detects an abnormality of the handrail 4 based on the detection distance by the distance detection device 5.
　図６は、図１に示す距離検出装置５の周辺の拡大図である。図６における手摺４に沿った矢印は、手摺４の移動方向を示している。図６は、一例として、手摺４に亀裂７ａ及び亀裂７ｂが発生し、付着物１１が付着している場合を示している。開口の縁部の厚さ方向における亀裂７ｂの深さは、亀裂７ａの深さよりも大きい。これらの亀裂及び付着物は、手摺４の移動方向において、前から亀裂７ａ、亀裂７ｂ、付着物１１の順番で並んでいる。 FIG. 6 is an enlarged view of the periphery of the distance detection device 5 shown in FIG. An arrow along the handrail 4 in FIG. 6 indicates the moving direction of the handrail 4. FIG. 6 shows, as an example, a case where cracks 7 a and cracks 7 b are generated in the handrail 4 and the deposit 11 is adhered. The depth of the crack 7b in the thickness direction of the edge of the opening is larger than the depth of the crack 7a. These cracks and deposits are arranged in the order of cracks 7 a, cracks 7 b, and deposits 11 from the front in the moving direction of the handrail 4.
　図７は、図６に示す場合における時間経過と距離検出装置５による検出距離との関係を示す図である。図７は、一例として、検出レベルＡ、検出レベルＢ及び検出レベルＣの３つが検出レベルとして設定されている場合を示している。検出レベルＡは、基準レベルよりも大きい。検出レベルＢは、基準レベルよりも大きく且つ検出レベルＡよりも小さい。検出レベルＣは、基準レベルよりも小さい。 FIG. 7 is a diagram showing the relationship between the passage of time and the distance detected by the distance detector 5 in the case shown in FIG. FIG. 7 shows, as an example, a case where three of detection level A, detection level B, and detection level C are set as detection levels. The detection level A is higher than the reference level. The detection level B is larger than the reference level and smaller than the detection level A. The detection level C is smaller than the reference level.
　図７に示す時間（ａ）における検出距離は、亀裂７ａに対応する。時間（ａ）における検出距離は、検出レベルＢ以上である。時間（ｂ）における検出距離は、亀裂７ｂに対応する。時間（ｂ）における検出距離は、検出レベルＡ以上である。時間（ｃ）における検出距離は、付着物１１に対応する。時間（ｃ）における検出距離は、検出レベルＣ以下である。 The detection distance at time (a) shown in Fig. 7 corresponds to the crack 7a. The detection distance at time (a) is greater than or equal to detection level B. The detection distance at time (b) corresponds to the crack 7b. The detection distance at time (b) is equal to or higher than detection level A. The detection distance at time (c) corresponds to the deposit 11. The detection distance at time (c) is below detection level C.
　図８は、実施の形態１における乗客コンベアの手摺異常検出システムの動作を示すフローチャートである。図８は、一例として、図７に示す３つの検出レベルが設定されている場合の動作を示している。以下、図８を参照して、手摺異常検出システムの動作について説明する。 FIG. 8 is a flowchart showing the operation of the passenger conveyor handrail abnormality detection system in the first embodiment. FIG. 8 shows an operation when the three detection levels shown in FIG. 7 are set as an example. The operation of the handrail abnormality detection system will be described below with reference to FIG.
　距離検出装置５により手摺４までの距離が検出されると（ステップＳ１０１）、判定部９は、検出距離が検出レベルＡ以上であるか否かを判定する（ステップＳ１０２）。ステップＳ１０２で検出距離が検出レベルＡ以上であると判定された場合、発信部１０は、監視室に対して信号Ａを発信する（ステップＳ１０３）。信号Ａは、例えば、手摺４に大きい亀裂が発生しているため手摺４の修理が必要であることを示すものである。 When the distance to the handrail 4 is detected by the distance detection device 5 (step S101), the determination unit 9 determines whether or not the detection distance is equal to or greater than the detection level A (step S102). When it is determined in step S102 that the detection distance is equal to or greater than the detection level A, the transmission unit 10 transmits a signal A to the monitoring room (step S103). The signal A indicates, for example, that the handrail 4 needs to be repaired because a large crack has occurred in the handrail 4.
　ステップＳ１０２で検出距離が検出レベルＡ以上でないと判定された場合、判定部９は、検出距離が検出レベルＢ以上であるか否かを判定する（ステップＳ１０４）。ステップＳ１０４で検出距離が検出レベルＢ以上であると判定された場合、発信部１０は、監視室に対して信号Ｂを発信する（ステップＳ１０５）。信号Ｂは、例えば、手摺４に小さい亀裂が発生していることを示して注意を促すものである。 When it is determined in step S102 that the detection distance is not equal to or greater than the detection level A, the determination unit 9 determines whether the detection distance is equal to or greater than the detection level B (step S104). When it is determined in step S104 that the detection distance is equal to or greater than the detection level B, the transmission unit 10 transmits a signal B to the monitoring room (step S105). The signal B indicates, for example, that a small crack has occurred in the handrail 4 to call attention.
　ステップＳ１０４で検出距離が検出レベルＢ以上でないと判定された場合、判定部９は、検出距離が検出レベルＣ以下であるか否かを判定する（ステップＳ１０６）。ステップＳ１０６で検出距離が検出レベルＣ以下であると判定された場合、発信部１０は、監視室に対して信号Ｃを発信する（ステップＳ１０７）。信号Ｃは、例えば、手摺４の表面に付着物が存在するため手摺４の清掃が必要であることを示すものである。ステップＳ１０６で検出距離が検出レベルＣ以下でないと判定された場合、ステップＳ１０１からの処理が繰り返される。 When it is determined in step S104 that the detection distance is not equal to or greater than the detection level B, the determination unit 9 determines whether the detection distance is equal to or less than the detection level C (step S106). When it is determined in step S106 that the detection distance is equal to or less than the detection level C, the transmission unit 10 transmits a signal C to the monitoring room (step S107). The signal C indicates, for example, that the handrail 4 needs to be cleaned because there are deposits on the surface of the handrail 4. If it is determined in step S106 that the detection distance is not equal to or less than the detection level C, the processing from step S101 is repeated.
　実施の形態１において、手摺４の移動方向から見た手摺４の断面形状は、Ｃ字状を呈している。距離検出装置５は、当該断面形状における開口の縁部の厚さ方向において手摺４に対向している。距離検出装置５は、開口の縁部の厚さ方向において、当該縁部までの距離を検出する。制御装置６は、距離検出装置５による検出距離に基づいて手摺４の異常を検出する。つまり、制御装置６は、開口の縁部の厚さ方向における距離検出装置５から当該縁部までの距離に基づいて、手摺４の異常を検出する。このため、例えば、手摺４に発生した亀裂を大きさ及び形状等に関係なく検出することができる。また、例えば、手摺４の表面に存在する付着物も検出することができる。 In Embodiment 1, the cross-sectional shape of the handrail 4 viewed from the moving direction of the handrail 4 is C-shaped. The distance detection device 5 faces the handrail 4 in the thickness direction of the edge of the opening in the cross-sectional shape. The distance detection device 5 detects the distance to the edge in the thickness direction of the edge of the opening. The control device 6 detects an abnormality of the handrail 4 based on the distance detected by the distance detection device 5. That is, the control device 6 detects the abnormality of the handrail 4 based on the distance from the distance detection device 5 to the edge in the thickness direction of the edge of the opening. For this reason, for example, a crack generated in the handrail 4 can be detected regardless of the size and shape. Moreover, for example, the deposits present on the surface of the handrail 4 can also be detected.
　実施の形態１において、手摺４は、開口の縁部を内側に向けて循環移動する。距離検出装置５は、循環移動する手摺４の経路の内側に設けられている。距離検出装置５は、開口の縁部の厚さ方向において、当該縁部に対向する位置に設けられている。つまり、距離検出装置５は、手摺４の亀裂が発生し易い部位に対向している。このため、手摺４に亀裂が発生したとしても、当該亀裂が拡大する前に迅速に検出することができる。 In the first embodiment, the handrail 4 circulates with the edge of the opening facing inward. The distance detection device 5 is provided inside the route of the handrail 4 that circulates and moves. The distance detection device 5 is provided at a position facing the edge in the thickness direction of the edge of the opening. That is, the distance detection device 5 faces a portion where the crack of the handrail 4 is likely to occur. For this reason, even if a crack occurs in the handrail 4, it can be detected quickly before the crack expands.
　実施の形態１において、距離検出装置５は、第１検出装置５ａ及び第２検出装置５ｂを備えている。第１検出装置５ａは、手摺４の移動方向から見て、手摺４の断面形状が有する開口の両側に形成された縁部のうち一方に対向する位置に設けられている。第２検出装置５ｂは、当該開口の両側に形成された縁部のうち他方に対向する位置に設けられている。このため、当該一方の縁部及び当該他方の縁部のどちらに発生した亀裂でも検出することができる。 In Embodiment 1, the distance detection device 5 includes a first detection device 5a and a second detection device 5b. The first detection device 5 a is provided at a position facing one of the edge portions formed on both sides of the opening of the cross-sectional shape of the handrail 4 when viewed from the moving direction of the handrail 4. The 2nd detection apparatus 5b is provided in the position which opposes the other among the edge parts formed in the both sides of the said opening. For this reason, the crack which generate | occur | produced in any of the said one edge part and the said other edge part is detectable.
　実施の形態１において、記憶部８は、予め設定された基準値よりも大きい第１の値及び前記基準値よりも小さい第２の値を記憶している。発信部１０は、検出距離が第１の値以上であると判定部９によって判定された場合に、第１の信号を発信する。これにより、検出距離が正常よりも長いことに基づいて、手摺４に亀裂が発生していることが検出される。また、発信部１０は、検出距離が第２の値以下であると判定部９によって判定された場合に、第２の信号を発信する。これにより、検出距離が正常よりも短いことに基づいて、例えば、手摺４の表面に付着物が存在していることが検出される。このため、距離検出装置５によって手摺４までの距離を検出することで、手摺４の異常として亀裂及び付着物の双方を検出することができる。 In Embodiment 1, the storage unit 8 stores a first value larger than a preset reference value and a second value smaller than the reference value. The transmission unit 10 transmits the first signal when the determination unit 9 determines that the detection distance is equal to or greater than the first value. Thereby, it is detected that the handrail 4 is cracked based on the detection distance being longer than normal. Moreover, the transmission part 10 transmits a 2nd signal, when the determination part 9 determines with a detection distance being below a 2nd value. Thereby, based on the fact that the detection distance is shorter than normal, for example, it is detected that the deposit is present on the surface of the handrail 4. For this reason, by detecting the distance to the handrail 4 by the distance detection device 5, both cracks and deposits can be detected as an abnormality of the handrail 4.
　実施の形態１において、判定部９は、複数の検出レベルのうち値が大きいものから順番に検出距離と比較する。つまり、判定部９は、手摺４に大きい亀裂が発生しているか否かの判定を優先的に行う。このため、手摺４に複数の異常がある場合であっても、迅速に大きい亀裂を検出することができる。 In Embodiment 1, the determination unit 9 compares the detection distance with the detection distance in order from the largest value among the plurality of detection levels. That is, the determination unit 9 preferentially determines whether or not a large crack has occurred in the handrail 4. For this reason, even if the handrail 4 has a plurality of abnormalities, a large crack can be detected quickly.
　実施の形態１において、距離検出装置５は、手摺４が循環移動する経路において、手摺４が湾曲する位置に対応して配置されている。距離検出装置５は、手摺４の部位のうち引き延ばされるように湾曲する部位と対向するように配置されている。距離検出装置５と対向する手摺４の部位は、引き延ばされるように湾曲することにより亀裂が広がった状態となる。このため、手摺４に発生した亀裂をより確実に検出することができる。 In the first embodiment, the distance detection device 5 is arranged corresponding to the position where the handrail 4 is curved in the path along which the handrail 4 circulates. The distance detection device 5 is disposed so as to face a portion that is curved so as to be extended among the portions of the handrail 4. The portion of the handrail 4 facing the distance detection device 5 is in a state where the crack is widened by being bent so as to be extended. For this reason, the crack which generate | occur | produced in the handrail 4 can be detected more reliably.
　本発明における発信部１０は、判定部９によって検出距離が第１の値以上であると判定されず且つ第２の値以下であると判定されなかった場合に、第１の信号及び第２の信号のいずれでもない他の信号を発信してもよい。他の信号は、例えば、手摺４に異常がないことを示す信号である。 The transmitter 10 according to the present invention, when the determination unit 9 does not determine that the detection distance is equal to or greater than the first value and is not equal to or less than the second value, the first signal and the second signal Other signals that are not any of the signals may be transmitted. Another signal is a signal which shows that there is no abnormality in the handrail 4, for example.
　本発明における検出レベルとして、基準値よりも大きい値を複数設定してもよい。この場合、例えば、手摺４に発生している亀裂の大きさに応じて、発信部１０から異なる信号を発信させることができる。つまり、手摺４の劣化の度合いに応じた内容で、監視室に注意を促すことができる。 A plurality of values larger than the reference value may be set as the detection level in the present invention. In this case, for example, a different signal can be transmitted from the transmission unit 10 according to the size of the crack generated in the handrail 4. That is, it is possible to call attention to the monitoring room with contents corresponding to the degree of deterioration of the handrail 4.
　本発明における検出レベルとして、基準値よりも小さい値を複数設定してもよい。この場合、例えば、手摺４に付着している付着物の大きさに応じて、発信部１０から異なる信号を発信させることができる。つまり、手摺４の汚れの度合いに応じた内容で、監視室に注意を促すことができる。 A plurality of values smaller than the reference value may be set as the detection level in the present invention. In this case, for example, different signals can be transmitted from the transmission unit 10 in accordance with the size of the adhered matter attached to the handrail 4. That is, it is possible to call attention to the monitoring room with the content corresponding to the degree of dirt on the handrail 4.
　本発明に係る乗客コンベアの手摺異常検出システムは、移動する手摺を備えた乗客コンベアに適用できる。 The handrail abnormality detection system for a passenger conveyor according to the present invention can be applied to a passenger conveyor provided with a moving handrail.
　１　トラス、２　上部乗降口、３　下部乗降口、４　手摺、５　距離検出装置、５ａ　第１検出装置、５ｂ　第２検出装置、６　制御装置、７，７ａ，７ｂ　亀裂、８　記憶部、９　判定部、１０　発信部、１１　付着物 1 truss, 2 upper entrance / exit, 3 lower entrance / exit, 4 handrail, 5 distance detection device, 5a first detection device, 5b second detection device, 6 control device, 7, 7a, 7b crack, 8 storage unit, 9 judgment Parts, 10 sending parts, 11 deposits

Claims (4)

  1. 　Ｃ字状の断面形状における開口の両側に形成された縁部を内側に向けて循環移動する手摺の経路の内側に設けられ、前記縁部の厚さ方向において前記縁部に対向し、前記縁部の厚さ方向において前記縁部までの距離を検出する距離検出装置と、
    　前記距離検出装置により検出された前記縁部の厚さ方向における前記縁部までの距離に基づいて前記手摺の異常を検出する制御装置と、
    を備えた乗客コンベアの手摺異常検出システム。     The edge formed on both sides of the opening in the C-shaped cross-sectional shape is provided inside the path of the handrail that circulates inwardly, facing the edge in the thickness direction of the edge, and the edge A distance detecting device for detecting a distance to the edge in the thickness direction of the part;
    A control device for detecting an abnormality of the handrail based on a distance to the edge in the thickness direction of the edge detected by the distance detection device;
    A handrail anomaly detection system for passenger conveyors.
  2. 　前記制御装置は、
    　予め設定された基準値よりも大きい第１の値及び前記基準値よりも小さい第２の値を記憶している記憶部と、
    　前記距離検出装置により検出された距離を前記記憶部に記憶されている前記第１の値及び前記第２の値と比較する判定部と、
    　前記距離検出装置により検出された距離が前記第１の値以上である場合に第１の信号を発信し、前記距離検出装置により検出された距離が前記第２の値以下である場合に第２の信号を発信する発信部と、
    を備えた請求項１に記載の乗客コンベアの手摺異常検出システム。     The controller is
    A storage unit storing a first value larger than a reference value set in advance and a second value smaller than the reference value;
    A determination unit that compares the distance detected by the distance detection device with the first value and the second value stored in the storage unit;
    A first signal is transmitted when the distance detected by the distance detection device is greater than or equal to the first value, and a second when the distance detected by the distance detection device is less than or equal to the second value. A transmitter that transmits the signal of
    The handrail abnormality detection system of the passenger conveyor of Claim 1 provided with this.
  3. 　前記距離検出装置は、前記手摺が循環移動する経路において前記手摺が湾曲する位置に対応して配置された請求項１又は２に記載の乗客コンベアの手摺異常検出システム。 3. The passenger conveyor handrail abnormality detection system according to claim 1 or 2, wherein the distance detection device is disposed corresponding to a position where the handrail is curved in a route along which the handrail circulates.
  4. 　前記距離検出装置は、第１検出装置及び第２検出装置を備え、
    　前記第１検出装置は、前記開口の両側に形成された前記縁部のうち一方に対向し、
    　前記第２検出装置は、前記開口の両側に形成された前記縁部のうち他方に対向する請求項１から３のいずれか１項に記載の乗客コンベアの手摺異常検出システム。     The distance detection device includes a first detection device and a second detection device,
    The first detection device is opposed to one of the edges formed on both sides of the opening,
    4. The passenger conveyor handrail abnormality detection system according to claim 1, wherein the second detection device faces the other of the edges formed on both sides of the opening. 5.
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JP2016088698A (en) * 2014-11-05 2016-05-23 株式会社日立ビルシステム Moving handrail deterioration diagnosing device
CN110647819A (en) * 2019-08-28 2020-01-03 中国矿业大学 Method and device for detecting abnormal behavior of underground personnel crossing belt

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JP4266176B2 (en) * 2004-03-03 2009-05-20 三菱電機ビルテクノサービス株式会社 Pressure roller detection device for handrail drive device of passenger conveyor
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JP4266176B2 (en) * 2004-03-03 2009-05-20 三菱電機ビルテクノサービス株式会社 Pressure roller detection device for handrail drive device of passenger conveyor
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JP2016088698A (en) * 2014-11-05 2016-05-23 株式会社日立ビルシステム Moving handrail deterioration diagnosing device
CN110647819A (en) * 2019-08-28 2020-01-03 中国矿业大学 Method and device for detecting abnormal behavior of underground personnel crossing belt
CN110647819B (en) * 2019-08-28 2022-02-01 中国矿业大学 Method and device for detecting abnormal behavior of underground personnel crossing belt

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