WO2023002895A1 - Escalator chain deflection range confirmation device and deflection range confirmation method - Google Patents

Escalator chain deflection range confirmation device and deflection range confirmation method Download PDF

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Publication number
WO2023002895A1
WO2023002895A1 PCT/JP2022/027529 JP2022027529W WO2023002895A1 WO 2023002895 A1 WO2023002895 A1 WO 2023002895A1 JP 2022027529 W JP2022027529 W JP 2022027529W WO 2023002895 A1 WO2023002895 A1 WO 2023002895A1
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WO
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Prior art keywords
confirmation
laser projection
laser beam
projection unit
chain
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PCT/JP2022/027529
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French (fr)
Japanese (ja)
Inventor
佳祐 指田
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三菱電機ビルソリューションズ株式会社
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Application filed by 三菱電機ビルソリューションズ株式会社 filed Critical 三菱電機ビルソリューションズ株式会社
Priority to CN202280006367.7A priority Critical patent/CN116057001B/en
Priority to KR1020237006225A priority patent/KR102522987B1/en
Publication of WO2023002895A1 publication Critical patent/WO2023002895A1/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

Definitions

  • the present disclosure relates to an escalator chain swing width confirmation device and a swing width confirmation method.
  • Patent Document 1 discloses a technique for accurately diagnosing the elongation of a moving handrail drive chain. This technology is equipped with a multi-beam sensor that uses infrared rays to detect the vertical deflection of the handrail drive chain, and an indicator that displays the detected deflection. According to this device, it is possible to constantly monitor the degree of elongation of the handrail drive chain.
  • Patent Document 1 When inspecting the swing width of the handrail chain, hold the tension meter with one hand and push the handrail chain with a specified force while holding a steel rule with the other hand and confirming whether the swing width is within the set value range. A common method is to This work needs to be done with both hands in a limited work space, and improvement of workability is desired.
  • the technique of Patent Document 1 can accurately detect the amplitude of the vibration with the multi-beam sensor, but the multi-beam sensor is installed across the handrail chain, and the amplitude is detected while pressing the handrail chain. not expected to do so.
  • the device of Patent Document 1 since the device of Patent Document 1 is permanently installed in an escalator, there is also a problem that the device becomes large-scale. As described above, the inspection of the swing width of the handrail chain has a problem of improving workability with a simple device configuration.
  • the present disclosure has been made to solve the above-described problems, and aims to provide a technique capable of improving workability with a simple device configuration in inspecting the swing width of handrail chains of escalators. aim.
  • a swing width confirmation device for checking the swing width of an escalator chain includes a reference laser projection unit that irradiates a reference laser beam from a horizontal direction on the side surface of the chain located in a measurement target portion, and a reference laser beam. and at least one verification laser projection unit for irradiating a verification laser beam parallel to the light. At least one confirmation laser projection unit is arranged at a position where the irradiation interval between the reference laser beam and the confirmation laser beam is the set value of the amplitude.
  • the swing width confirmation method for checking whether the swing width of the escalator chain is within the range of the set value using the swing width confirmation device of the present disclosure is to irradiate the measurement target part with a reference laser beam from the horizontal direction. a fixing step of fixing the laser projection unit so that the confirmation laser light overlaps with the pressing direction orthogonal to the tension direction of the chain; a pressing step of pressing the measurement target portion in the pressing direction with a specified force; a confirmation step of confirming whether or not the part is included in a range between the reference laser beam and the confirmation laser beam.
  • the escalator chain deflection confirmation device of the present disclosure it is possible to visually confirm the irradiation point of the confirmation laser beam that is separated from the reference laser beam by the set value in the measurement target portion. As a result, it is possible to easily confirm whether or not the swing width of the chain is within the range of the set value.
  • FIG. 2 is a cross-sectional view showing an example of an escalator to which the swing width confirmation device of the present embodiment is applied; It is a figure which shows the structural example of the amplitude confirmation apparatus of this Embodiment.
  • 3 is a schematic view showing a part of the internal structure of the laser projection unit 22.
  • FIG. 4 is a front view showing an extract of an adjustment mechanism 50 of the laser projection unit 22;
  • FIG. 5 is a plan view of the adjusting mechanism 50 of FIG. 4 as seen from above;
  • FIG. It is a figure which shows an example of a guide board.
  • FIG. 10 is a diagram showing another example of confirmation results in the confirmation step of the amplitude confirmation method of the present embodiment;
  • FIG. 1 is a cross-sectional view showing an example of an escalator to which a swing-width checking device is applied.
  • the escalator comprises a truss 1 and steps 2.
  • the truss 1 spans the upper and lower floors.
  • a passenger moves from a boarding gate (not shown) to an alighting gate 3 on steps 2 . That is, FIG. 1 shows an upward escalator.
  • the escalator shown in FIG. 1 may be a downward escalator.
  • a machine room 4 is provided below the exit 3.
  • the machine room 4 is a space formed inside the truss 1 .
  • the machine room 4 is closed with a floor board 5 .
  • the floor plate 5 forms the floor of the exit 3.
  • An electric motor 6 and a control device 7 are provided in the machine room 4 .
  • Electric motor 6 drives sprocket 8 .
  • a control device 7 controls the electric motor 6 .
  • Sprockets 10 and 11 are provided on the shaft 9 on which the sprocket 8 is provided. Sprockets 10 and 11 rotate with sprocket 8 .
  • a step chain 12 is wound around the sprocket 10. - ⁇ A large number of step shafts 13 are provided on the step chain 12 .
  • a step 2 is fixed to each step shaft 13 . As a result, a large number of steps 2 are connected to the step chain 12 . The step 2 is moved by being pulled by the step chain 12. - ⁇
  • a handrail chain 14 is wound between the sprocket 11 and the sprocket 18.
  • the handrail chain 14 transmits the driving force of the electric motor 6 to the driving device 15 .
  • the driving device 15 drives the moving handrail 16 .
  • the step chain 12 and handrail chain 14 are examples of chains used in escalators. Other chains may be used in escalators.
  • the drive 15 is provided with a chain for rotating the rollers that contact the handrail 16 .
  • a swing width checking device 20 of the present disclosure is used when checking the swing width of a chain.
  • the structure of the swing width checking device 20 and an inspection method using the swing width checking device will be described in detail below, taking the case of checking the swing width of the handrail chain 14 of an escalator as an example.
  • FIG. 2 is a diagram showing a configuration example of the amplitude checking device of the present embodiment.
  • a swing width confirmation device 20 shown in FIG. 2 includes a laser projection unit 22 and a fixture 24 .
  • the laser projection unit 22 is a unit for projecting a laser beam that serves as a guideline for measuring the swing width of the handrail chain 14 .
  • the laser projection unit 22 is fixed to the truss 1 or the like of the machine room 4 by means of fixtures 24 .
  • the fixture 24 is exemplified by, for example, a flexible tripod whose legs can be flexibly wound.
  • the laser projection unit 22 includes one reference laser projection section 30, two confirmation laser projection sections 32 and 34, a battery 36, and a power switch 38.
  • the reference laser projection unit 30 projects a reference laser beam L1 that indicates a reference when measuring the swing width of the handrail chain 14 .
  • the reference laser projection unit 30 has a rectangular parallelepiped block shape.
  • An opening 26 is provided in the front of the laser projection unit 22 along the longitudinal direction.
  • the reference laser beam L1 projected from the reference laser projection unit 30 is irradiated to the outside from the opening 26 .
  • the two confirmation laser light projection units 32 and 34 project confirmation laser beams L2 and L3, respectively, which are allowable limit values when measuring the swing width of the handrail chain 14.
  • the confirmation laser projection units 32 and 34 have a rectangular parallelepiped block shape.
  • the confirmation laser beams L2 and L3 are laser beams parallel to the reference laser beam L1.
  • the two confirmation laser projection units 32 and 34 are arranged on a straight line with the reference laser projection unit 30 sandwiched in the center and at positions equidistant from the reference laser projection unit 30 .
  • Confirmation laser beams L2 and L3 projected from the two confirmation laser projection units 32 and 34 are irradiated to the outside from the opening 26 .
  • a battery 36 is a power source for the reference laser projection unit 30 and the confirmation laser projection units 32 and 34 .
  • a power switch 38 is the main power source for the laser projection unit 22 . When the power switch 38 is turned on, the power from the battery 36 is supplied to the reference laser projection section 30 and the confirmation laser projection sections 32 and 34 .
  • the laser projection unit 22 has an adjustment mechanism for manually adjusting the irradiation interval between the reference laser beam L1 and the confirmation laser beams L2 and L3.
  • FIG. 3 is a schematic diagram showing a part of the internal structure of the laser projection unit 22. As shown in FIG. As shown in FIG. 3, on the side of the opening 26 of the laser projection unit 22, a groove-shaped adjustment mechanism 50 for adjusting the positions of the reference laser projection portion 30 and the confirmation laser projection portions 32 and 34 is provided. A channel portion 52, a lead screw shaft 40 and a thumbscrew 42 are provided.
  • FIG. 4 is a front view showing an excerpt of the adjustment mechanism 50 of the laser projection unit 22.
  • FIG. 5 is a plan view of the adjusting mechanism 50 of FIG. 4 as seen from above.
  • the channel portion 52 is indicated by a dashed line, and the internal structure thereof is seen through.
  • the channel part 52 is a member having a U-shaped cross section for arranging the reference laser projection part 30 and the two confirmation laser projection parts 32 and 34 .
  • the reference laser projection section 30 arranged in the channel section 52 is fixed to the channel section 52 with screws 54 .
  • the two confirmation laser projection parts 32 and 34 are arranged so as to be slidable along the extending direction of the channel part 52 .
  • the reference laser projection part 30 and the two confirmation laser projection parts 32 and 34 are arranged so that the bottom surface, the front surface and the rear surface are in close contact with the channel part 52 . According to such a configuration, the directions of the confirmation laser light projection units 32 and 34 are regulated so that the confirmation laser beams L2 and L3 are parallel to the reference laser beam L1.
  • the feed screw shaft 40 has a shape in which a first threaded portion 402 having a normal thread and a second threaded portion 404 having a reverse thread are connected in a straight line.
  • a thumbscrew 42 is attached to the end of the feed screw shaft 40 on the second threaded portion 404 side.
  • the thumbscrew 42 is for rotating the feed screw shaft 40 from the outside of the laser projection unit 22 .
  • the end of the feed screw shaft 40 on the side of the first threaded portion 402 is rotatably supported by the laser projection unit 22 so that axial movement is restricted.
  • a feed screw nut 322 that screws together with the first screw portion 402 is formed in the confirmation laser projection portion 32 .
  • a feed screw nut 342 that screws together with the second screw portion 404 is formed in the confirmation laser projection portion 34 .
  • a through hole 302 having a diameter larger than that of the feed screw shaft 40 is formed in the reference laser projection section 30 .
  • the feed screw shaft 40 is passed through the through-hole of the reference laser projection section 30 .
  • the confirmation laser projection portions 32 and 34 are screwed into the first screw portion 402 and the second screw portion 404 respectively at positions equidistant from the reference laser projection portion 30 .
  • the reference laser projection section 30 is positioned centrally between the confirmation laser projection sections 32 and 34 .
  • the confirmation laser projection units 32 and 34 move horizontally toward the reference laser projection unit 30 by the same distance.
  • the confirmation laser projection units 32 and 34 move horizontally by the same distance away from the reference laser projection unit 30 .
  • a scale 44 for checking the irradiation interval between the reference laser beam L1 and the confirmation laser beams L2 and L3 is provided on the front surface of the laser projection unit 22. along the direction of movement of By rotating the thumbscrew 42 while checking the scale 44, the maintenance personnel can adjust the irradiation interval between the reference laser beam L1 and the two confirmation laser beams L2 and L3 all at once.
  • the amplitude confirmation device 20 is fixed at the measurement position.
  • a measurement target portion P ⁇ b>1 of the handrail chain 14 is an intermediate portion between the sprockets 11 and 10 .
  • the reference laser beam L1 is horizontally irradiated on the side surface of the handrail chain 14 at the measurement target portion P1, and the confirmation laser beams L2 and L3 are positioned upward and downward in the pressing direction from the reference laser beam L1. Width confirmation device 20 is fixed.
  • FIG. 6 is a diagram showing an example of a guide board.
  • a guide plate 60 shown in this figure has a tension direction guideline 62 and a pressure direction guideline 64 .
  • a maintenance worker applies the guide board 60 to the rear side of the handrail chain 14 and aligns the lower line of the handrail chain 14 with the guideline 62 in the tension direction. Then, the maintenance staff adjusts the position of the deflection checking device 20 so that the checking laser beams L2 and L3 are positioned on the guideline 64 in the pressing direction.
  • the maintenance worker presses the measurement target part P1 upward in the pressing direction with a force of 20 N using a tension meter. This step is called a “pressing step”. Then, the maintenance staff confirms whether the measurement target portion P1 belongs to the range between the reference laser beam L1 and the confirmation laser beam L2. This step is called the “confirmation step”. Similarly, in the pressing step, the maintenance worker uses a tension meter to press the measurement target portion P1 downward in the pressing direction with a force of 20N. Then, in the confirmation step, the maintenance personnel confirms whether the measurement target portion P1 belongs to the range between the reference laser beam L1 and the confirmation laser beam L3.
  • FIG. 7 is a diagram showing an example of confirmation results in the confirmation process.
  • the measurement target portion P1 is within the range between the reference laser beam L1 and the confirmation laser beam L2 and between the reference laser beam L1 and the confirmation laser beam L3.
  • the maintenance personnel determines that the swing width of the handrail chain 14 is within the range of the set value W and that adjustment of the swing width is unnecessary.
  • FIG. 8 is a diagram showing another example of confirmation results in the confirmation process.
  • the measurement target portion P1 exceeds the range between the reference laser beam L1 and the confirmation laser beam L2 and between the reference laser beam L1 and the confirmation laser beam L3.
  • the maintenance staff judges that the swing width of the handrail chain 14 is outside the range of the set value W, and that adjustment of the swing width is necessary.
  • the maintenance worker can check the limit value of the swing width using the confirmation laser beams L2 and L3. There is no need to separately hold a measuring instrument such as This makes it possible to improve the workability of amplitude measurement.
  • the chain to which the swing width confirmation device 20 can be applied is not limited to the handrail chain 14. That is, the swing width confirmation device 20 can also be used to measure the swing width of other chains provided on the escalator.
  • the amplitude confirmation device 20 includes two confirmation laser projection units 32 and 34, but the number is not limited as long as at least one confirmation laser projection unit is provided.
  • the configuration of the adjustment mechanism 50 is not essential. That is, in the amplitude confirmation device 20, the distance between the reference laser projection unit 30 and the confirmation laser projection units 32 and 34 may be fixed at the set value W, which is a fixed value. Further, the configuration of the adjustment mechanism 50 is not limited to a configuration including the feed screw shaft 40, and may be a configuration in which the confirmation laser projection units 32 and 34 are directly slid by hand.
  • the configuration of the channel portion 52 is not essential. Further, in the adjustment mechanism 50 of the embodiment, the channel portion 52 is arranged below the reference laser projection portion 30 and the confirmation laser projection portions 32 and 34. However, instead of or in addition to this, a channel portion may be provided above the reference laser projection portion 30 and the confirmation laser projection portions 32 and 34 .
  • the fixture 24 is not limited to a flexible tripod. That is, the fixture 24 may be a magnet or a tripod or the like that can stand on the floor, as long as the fixture 24 can fix the laser projection unit 22 at a specified position.
  • the adjustment mechanism 50 is configured to manually rotate the thumbscrew 42, it may be configured to be electrically rotated using an actuator such as a motor.
  • the swing width confirmation device 20 may be used to measure the swing width of the handrail chain 14.
  • the maintenance worker turns the thumbscrew 42 to align the position of the confirmation laser beam L2 with the measurement target portion P1.
  • the maintenance personnel reads the size of the position of the confirmation laser projection unit 32 from the scale 44 .
  • a similar operation is performed after the upward pressing step. According to such a method, it is possible to measure and confirm the actual values of the vertical swing width of the handrail chain 14 respectively.
  • the reference laser projection unit 30 and the confirmation laser projection units 32 and 34 may be configured so that the focus of the laser beam can be adjusted.

Abstract

This deflection range confirmation device for checking the deflection range of an escalator chain comprises a laser projection unit including a reference laser projector that irradiates the side of a chain located in a part to be measured with a reference laser beam from the horizontal direction, and at least one confirmation laser projector that emits a confirmation laser beam parallel to the reference laser beam. The at least one confirmation laser projector is disposed at a position where the irradiation interval between the reference laser beam and the confirmation laser beam becomes a deflection range setting value. A maintenance staff presses the part to be measured with a prescribed force in the pressing direction and checks whether the part to be measured is included in the range between the reference laser beam and the confirmation laser beam.

Description

エスカレーターのチェーンの振れ幅確認装置及び振れ幅確認方法Escalator chain swing width confirmation device and swing width confirmation method
　本開示は、エスカレーターのチェーンの振れ幅確認装置、及び振れ幅確認方法に関する。 The present disclosure relates to an escalator chain swing width confirmation device and a swing width confirmation method.
　特許文献１には、移動手摺駆動用チェーンの伸長度を正確に診断する技術が開示されている。この技術では、移動手摺駆動用チェーンの鉛直方向の振れ幅を、赤外線を用いて検出するマルチビームセンサーと、検出された振れ幅を表示するインジケーターを備えている。この装置によれば、移動手摺駆動用チェーンの伸長度を常時監視することができるとしている。 Patent Document 1 discloses a technique for accurately diagnosing the elongation of a moving handrail drive chain. This technology is equipped with a multi-beam sensor that uses infrared rays to detect the vertical deflection of the handrail drive chain, and an indicator that displays the detected deflection. According to this device, it is possible to constantly monitor the degree of elongation of the handrail drive chain.
日本特開２００６－２１９２２０号公報Japanese Patent Application Laid-Open No. 2006-219220
　手摺チェーンの振れ幅の点検では、一方の手でテンションメータを把持し、手摺チェーンを定められた力で押しながら、他方の手で鋼尺を持ち振れ幅が設定値の範囲内かどうかを確認する方法が一般的である。この作業は、限られた作業空間内で両手を用いて行う必要があり、作業性の改善が求められている。上記特許文献１の技術は、マルチビームセンサーによって振れ幅を正確に検出することが可能ではあるが、マルチビームセンサーは手摺チェーンを挟んで設置されており、手摺チェーンを押圧しながら振れ幅を検出することは想定していない。また、上記特許文献１の装置はエスカレーターに常設されるものであるため、装置が大掛かりになるという課題もある。このように、手摺チェーンの振れ幅の点検では、簡易な装置構成で作業性を改善することに課題を有している。 When inspecting the swing width of the handrail chain, hold the tension meter with one hand and push the handrail chain with a specified force while holding a steel rule with the other hand and confirming whether the swing width is within the set value range. A common method is to This work needs to be done with both hands in a limited work space, and improvement of workability is desired. The technique of Patent Document 1 can accurately detect the amplitude of the vibration with the multi-beam sensor, but the multi-beam sensor is installed across the handrail chain, and the amplitude is detected while pressing the handrail chain. not expected to do so. In addition, since the device of Patent Document 1 is permanently installed in an escalator, there is also a problem that the device becomes large-scale. As described above, the inspection of the swing width of the handrail chain has a problem of improving workability with a simple device configuration.
　本開示は、上述のような課題を解決するためになされたもので、エスカレーターの手摺チェーンの振れ幅の点検において、簡易な装置構成で作業性を改善することが可能な技術を提供することを目的とする。 The present disclosure has been made to solve the above-described problems, and aims to provide a technique capable of improving workability with a simple device configuration in inspecting the swing width of handrail chains of escalators. aim.
　本開示のエスカレーターのチェーンの振れ幅を確認するための振れ幅確認装置は、測定対象部に位置するチェーンの側面に対して水平方向から基準レーザー光を照射する基準レーザー投光部と、基準レーザー光に並行な確認用レーザー光を照射する少なくとも１つの確認用レーザー投光部と、を含むレーザー投光ユニットを備える。少なくとも１つの確認用レーザー投光部は、基準レーザー光と確認用レーザー光との間の照射間隔が振れ幅の設定値となる位置に配置される。 A swing width confirmation device for checking the swing width of an escalator chain according to the present disclosure includes a reference laser projection unit that irradiates a reference laser beam from a horizontal direction on the side surface of the chain located in a measurement target portion, and a reference laser beam. and at least one verification laser projection unit for irradiating a verification laser beam parallel to the light. At least one confirmation laser projection unit is arranged at a position where the irradiation interval between the reference laser beam and the confirmation laser beam is the set value of the amplitude.
　また、本開示の振れ幅確認装置を用いてエスカレーターのチェーンの振れ幅が設定値の範囲に含まれているかどうかを確認する振れ幅確認方法は、基準レーザー光が測定対象部に水平方向から照射され、確認用レーザー光がチェーンの張り方向に直交する押圧方向に重なるようにレーザー投光ユニットを固定する固定工程と、測定対象部を押圧方向に規定の力で押圧する押圧工程と、測定対象部が基準レーザー光と確認用レーザー光との間の範囲に含まれるかどうかを確認する確認工程と、を備える。 In addition, the swing width confirmation method for checking whether the swing width of the escalator chain is within the range of the set value using the swing width confirmation device of the present disclosure is to irradiate the measurement target part with a reference laser beam from the horizontal direction. a fixing step of fixing the laser projection unit so that the confirmation laser light overlaps with the pressing direction orthogonal to the tension direction of the chain; a pressing step of pressing the measurement target portion in the pressing direction with a specified force; a confirmation step of confirming whether or not the part is included in a range between the reference laser beam and the confirmation laser beam.
　本開示のエスカレーターのチェーンの振れ幅確認装置によれば、測定対象部において基準レーザー光から設定値だけ離れた確認用レーザー光の照射点を目視によって確認することができる。これにより、チェーンの振れ幅が設定値の範囲内かどうかを容易に確認することが可能となる。 According to the escalator chain deflection confirmation device of the present disclosure, it is possible to visually confirm the irradiation point of the confirmation laser beam that is separated from the reference laser beam by the set value in the measurement target portion. As a result, it is possible to easily confirm whether or not the swing width of the chain is within the range of the set value.
本実施の形態の振れ幅確認装置が適用されるエスカレーターの例を示す断面図である。FIG. 2 is a cross-sectional view showing an example of an escalator to which the swing width confirmation device of the present embodiment is applied; 本実施の形態の振れ幅確認装置の構成例を示す図である。It is a figure which shows the structural example of the amplitude confirmation apparatus of this Embodiment. レーザー投光ユニット２２の内部構造の一部を透視して示す模式図である。3 is a schematic view showing a part of the internal structure of the laser projection unit 22. FIG. レーザー投光ユニット２２の調整機構５０を抜粋して示す正面図である。4 is a front view showing an extract of an adjustment mechanism 50 of the laser projection unit 22; FIG. 図４の調整機構５０を上方から見た平面図である。5 is a plan view of the adjusting mechanism 50 of FIG. 4 as seen from above; FIG. ガイド盤の一例を示す図である。It is a figure which shows an example of a guide board. 本実施の形態の振れ幅確認方法の確認工程における確認結果の一例を示す図である。It is a figure which shows an example of the confirmation result in the confirmation process of the amplitude confirmation method of this Embodiment. 本実施の形態の振れ幅確認方法の確認工程における確認結果の他の例を示す図である。FIG. 10 is a diagram showing another example of confirmation results in the confirmation step of the amplitude confirmation method of the present embodiment;
　以下、図面を参照して実施の形態について説明する。なお、各図において共通する要素には、同一の符号を付して、重複する説明を省略する。 Embodiments will be described below with reference to the drawings. In addition, the same code|symbol is attached|subjected to the element which is common in each figure, and the overlapping description is abbreviate|omitted.
実施の形態１．
１．振れ幅確認装置が適用されるエスカレーターの構成
　図１は、振れ幅確認装置が適用されるエスカレーターの例を示す断面図である。エスカレーターは、トラス１、及びステップ２を備えている。トラス１は、上下の階に架け渡される。乗客は、ステップ２に乗って乗り口（図示せず）から降り口３に移動する。即ち、図１は、上りのエスカレーターを示す。図１に示すエスカレーターは、下りのエスカレーターでも良い。 Embodiment 1.
1. 1. Configuration of Escalator to which Swing-Width Checking Device is Applied FIG. 1 is a cross-sectional view showing an example of an escalator to which a swing-width checking device is applied. The escalator comprises a truss 1 and steps 2. The truss 1 spans the upper and lower floors. A passenger moves from a boarding gate (not shown) to an alighting gate 3 on steps 2 . That is, FIG. 1 shows an upward escalator. The escalator shown in FIG. 1 may be a downward escalator.
　降り口３の下方に、機械室４が設けられている。機械室４は、トラス１の内部に形成された空間である。機械室４は、床板５によって塞がれている。床板５は、降り口３の床を形成している。機械室４に、電動機６及び制御装置７が設けられている。電動機６は、スプロケット８を駆動する。制御装置７は、電動機６を制御する。 A machine room 4 is provided below the exit 3. The machine room 4 is a space formed inside the truss 1 . The machine room 4 is closed with a floor board 5 . The floor plate 5 forms the floor of the exit 3. An electric motor 6 and a control device 7 are provided in the machine room 4 . Electric motor 6 drives sprocket 8 . A control device 7 controls the electric motor 6 .
　スプロケット８が設けられた軸９に、スプロケット１０及び１１が設けられている。スプロケット１０及び１１は、スプロケット８と共に回転する。スプロケット１０に、ステップチェーン１２が巻き掛けられている。ステップチェーン１２に多数のステップ軸１３が設けられている。各ステップ軸１３にステップ２が固定されている。これにより、ステップチェーン１２に多数のステップ２が連結される。ステップチェーン１２に牽引されることにより、ステップ２は移動する。 Sprockets 10 and 11 are provided on the shaft 9 on which the sprocket 8 is provided. Sprockets 10 and 11 rotate with sprocket 8 . A step chain 12 is wound around the sprocket 10. - 特許庁A large number of step shafts 13 are provided on the step chain 12 . A step 2 is fixed to each step shaft 13 . As a result, a large number of steps 2 are connected to the step chain 12 . The step 2 is moved by being pulled by the step chain 12. - 特許庁
　スプロケット１１とスプロケット１８との間に、手摺チェーン１４が巻き掛けられている。手摺チェーン１４は、電動機６の駆動力を駆動装置１５に伝達する。駆動装置１５は、移動手摺１６を駆動する。 A handrail chain 14 is wound between the sprocket 11 and the sprocket 18. The handrail chain 14 transmits the driving force of the electric motor 6 to the driving device 15 . The driving device 15 drives the moving handrail 16 .
　ステップチェーン１２及び手摺チェーン１４は、エスカレーターで使用されるチェーンの一例である。エスカレーターにおいて他のチェーンが使用されても良い。例えば、駆動装置１５に、移動手摺１６に接触するローラを回転させるためのチェーンが備えられる。 The step chain 12 and handrail chain 14 are examples of chains used in escalators. Other chains may be used in escalators. For example, the drive 15 is provided with a chain for rotating the rollers that contact the handrail 16 .
　保守員は、エスカレーターの点検において、これらのチェーンの振れ幅を測定し、測定した振れ幅を基準値と比較する。本開示の振れ幅確認装置２０は、チェーンの振れ幅を点検する際に用いられる。以下に、エスカレーターの手摺チェーン１４の振れ幅を点検する場合を例に、振れ幅確認装置２０の構造および振れ幅確認装置を用いた点検方法について詳しく説明する。 During the inspection of the escalator, maintenance personnel measure the swing width of these chains and compare the measured swing width with the reference value. A swing width checking device 20 of the present disclosure is used when checking the swing width of a chain. The structure of the swing width checking device 20 and an inspection method using the swing width checking device will be described in detail below, taking the case of checking the swing width of the handrail chain 14 of an escalator as an example.
２．振れ幅確認装置の構成
　図２は、本実施の形態の振れ幅確認装置の構成例を示す図である。図２に示す振れ幅確認装置２０は、レーザー投光ユニット２２と、固定具２４と、を含んでいる。レーザー投光ユニット２２は、手摺チェーン１４の振れ幅測定の際の目安となるレーザー光を投光するためのユニットである。レーザー投光ユニット２２は、固定具２４によって機械室４のトラス１等に固定される。固定具２４は、例えばフレキシブルに脚を巻き回すことが可能なフレキシブル三脚が例示される。 2. Configuration of Amplitude Checking Device FIG. 2 is a diagram showing a configuration example of the amplitude checking device of the present embodiment. A swing width confirmation device 20 shown in FIG. 2 includes a laser projection unit 22 and a fixture 24 . The laser projection unit 22 is a unit for projecting a laser beam that serves as a guideline for measuring the swing width of the handrail chain 14 . The laser projection unit 22 is fixed to the truss 1 or the like of the machine room 4 by means of fixtures 24 . The fixture 24 is exemplified by, for example, a flexible tripod whose legs can be flexibly wound.
　レーザー投光ユニット２２は、1つの基準レーザー投光部３０と、２つの確認用レーザー投光部３２，３４と、バッテリ３６と、電源スイッチ３８と、を備えている。 The laser projection unit 22 includes one reference laser projection section 30, two confirmation laser projection sections 32 and 34, a battery 36, and a power switch 38.
　基準レーザー投光部３０は、手摺チェーン１４の振れ幅測定の際の基準を示す基準レーザー光Ｌ１を投光する。基準レーザー投光部３０は、直方体のブロック形状を有している。レーザー投光ユニット２２の正面には、長手方向に沿って開口部２６が設けられている。基準レーザー投光部３０から投光された基準レーザー光Ｌ１は、開口部２６から外部へ照射される。 The reference laser projection unit 30 projects a reference laser beam L1 that indicates a reference when measuring the swing width of the handrail chain 14 . The reference laser projection unit 30 has a rectangular parallelepiped block shape. An opening 26 is provided in the front of the laser projection unit 22 along the longitudinal direction. The reference laser beam L1 projected from the reference laser projection unit 30 is irradiated to the outside from the opening 26 .
　２つの確認用レーザー投光部３２，３４は、手摺チェーン１４の振れ幅測定の際の許容限界値となる確認用レーザー光Ｌ２，Ｌ３をそれぞれ投光する。確認用レーザー投光部３２，３４は、直方体のブロック形状を有している。確認用レーザー光Ｌ２，Ｌ３は、基準レーザー光Ｌ１に並行なレーザー光である。２つの確認用レーザー投光部３２，３４のそれぞれは、基準レーザー投光部３０を中央に挟んで一直線上かつ、基準レーザー投光部３０からそれぞれ等距離だけ離れた位置に配置される。２つの確認用レーザー投光部３２，３４から投光された確認用レーザー光Ｌ２，Ｌ３は、開口部２６から外部へ照射される。 The two confirmation laser light projection units 32 and 34 project confirmation laser beams L2 and L3, respectively, which are allowable limit values when measuring the swing width of the handrail chain 14. The confirmation laser projection units 32 and 34 have a rectangular parallelepiped block shape. The confirmation laser beams L2 and L3 are laser beams parallel to the reference laser beam L1. The two confirmation laser projection units 32 and 34 are arranged on a straight line with the reference laser projection unit 30 sandwiched in the center and at positions equidistant from the reference laser projection unit 30 . Confirmation laser beams L2 and L3 projected from the two confirmation laser projection units 32 and 34 are irradiated to the outside from the opening 26 .
　バッテリ３６は、基準レーザー投光部３０、及び確認用レーザー投光部３２，３４の電力源である。電源スイッチ３８は、レーザー投光ユニット２２の主電源である。電源スイッチ３８がＯＮされると、バッテリ３６からの電源が基準レーザー投光部３０、及び確認用レーザー投光部３２，３４に供給される。 A battery 36 is a power source for the reference laser projection unit 30 and the confirmation laser projection units 32 and 34 . A power switch 38 is the main power source for the laser projection unit 22 . When the power switch 38 is turned on, the power from the battery 36 is supplied to the reference laser projection section 30 and the confirmation laser projection sections 32 and 34 .
　レーザー投光ユニット２２は、基準レーザー光Ｌ１と確認用レーザー光Ｌ２，Ｌ３との照射間隔を手動で調整するための調整機構を有している。図３は、レーザー投光ユニット２２の内部構造の一部を透視して示す模式図である。図３に示すように、レーザー投光ユニット２２の開口部２６側には、基準レーザー投光部３０、及び確認用レーザー投光部３２，３４の位置を調整する調整機構５０として、溝形状のチャネル部５２と、送りねじシャフト４０と、蝶ねじ４２と、が設けられている。 The laser projection unit 22 has an adjustment mechanism for manually adjusting the irradiation interval between the reference laser beam L1 and the confirmation laser beams L2 and L3. FIG. 3 is a schematic diagram showing a part of the internal structure of the laser projection unit 22. As shown in FIG. As shown in FIG. 3, on the side of the opening 26 of the laser projection unit 22, a groove-shaped adjustment mechanism 50 for adjusting the positions of the reference laser projection portion 30 and the confirmation laser projection portions 32 and 34 is provided. A channel portion 52, a lead screw shaft 40 and a thumbscrew 42 are provided.
　図４は、レーザー投光ユニット２２の調整機構５０を抜粋して示す正面図である。また、図５は、図４の調整機構５０を上方から見た平面図である。図４では、チャネル部５２を鎖線で示し、その内部構造を透視して図示している。 FIG. 4 is a front view showing an excerpt of the adjustment mechanism 50 of the laser projection unit 22. FIG. 5 is a plan view of the adjusting mechanism 50 of FIG. 4 as seen from above. In FIG. 4, the channel portion 52 is indicated by a dashed line, and the internal structure thereof is seen through.
　チャネル部５２は、基準レーザー投光部３０及び２つの確認用レーザー投光部３２，３４を配置するための断面Ｕ字形状の部材である。チャネル部５２に配置された基準レーザー投光部３０は、ビス５４によってチャネル部５２に固定される。一方、２つの確認用レーザー投光部３２，３４は、チャネル部５２の延在方向に沿ってスライド可能に配置される。 The channel part 52 is a member having a U-shaped cross section for arranging the reference laser projection part 30 and the two confirmation laser projection parts 32 and 34 . The reference laser projection section 30 arranged in the channel section 52 is fixed to the channel section 52 with screws 54 . On the other hand, the two confirmation laser projection parts 32 and 34 are arranged so as to be slidable along the extending direction of the channel part 52 .
　基準レーザー投光部３０及び２つの確認用レーザー投光部３２，３４は、底面、正面及び裏面がチャネル部５２に密接するように配置される。このような構成によれば、確認用レーザー投光部３２，３４は、確認用レーザー光Ｌ２，Ｌ３が基準レーザー光Ｌ１と並行になるように、その向きが規制される。 The reference laser projection part 30 and the two confirmation laser projection parts 32 and 34 are arranged so that the bottom surface, the front surface and the rear surface are in close contact with the channel part 52 . According to such a configuration, the directions of the confirmation laser light projection units 32 and 34 are regulated so that the confirmation laser beams L2 and L3 are parallel to the reference laser beam L1.
　送りねじシャフト４０は、順ねじが形成された第一ねじ部４０２と、逆ねじが形成された第二ねじ部４０４とが一直線上に連結された形状を有している。送りねじシャフト４０の第二ねじ部４０４の側の端部には、蝶ねじ４２が取り付けされている。蝶ねじ４２は、送りねじシャフト４０をレーザー投光ユニット２２の外部から回転操作するためのものである。送りねじシャフト４０の第一ねじ部４０２の側の端部は、軸方向の移動が規制されるように、レーザー投光ユニット２２に回転自在に支持される。 The feed screw shaft 40 has a shape in which a first threaded portion 402 having a normal thread and a second threaded portion 404 having a reverse thread are connected in a straight line. A thumbscrew 42 is attached to the end of the feed screw shaft 40 on the second threaded portion 404 side. The thumbscrew 42 is for rotating the feed screw shaft 40 from the outside of the laser projection unit 22 . The end of the feed screw shaft 40 on the side of the first threaded portion 402 is rotatably supported by the laser projection unit 22 so that axial movement is restricted.
　確認用レーザー投光部３２には、第一ねじ部４０２と螺合する送りねじナット３２２が形成されている。確認用レーザー投光部３４には、第二ねじ部４０４と螺合する送りねじナット３４２が形成されている。基準レーザー投光部３０には、送りねじシャフト４０よりも大径の貫通孔３０２が形成されている。 A feed screw nut 322 that screws together with the first screw portion 402 is formed in the confirmation laser projection portion 32 . A feed screw nut 342 that screws together with the second screw portion 404 is formed in the confirmation laser projection portion 34 . A through hole 302 having a diameter larger than that of the feed screw shaft 40 is formed in the reference laser projection section 30 .
　送りねじシャフト４０は、基準レーザー投光部３０の貫通孔に通される。確認用レーザー投光部３２，３４は、基準レーザー投光部３０からの距離が等距離となる位置で第一ねじ部４０２及び第二ねじ部４０４にそれぞれ螺合する。このような構成によれば、基準レーザー投光部３０は、確認用レーザー投光部３２，３４の間の中央に位置する。 The feed screw shaft 40 is passed through the through-hole of the reference laser projection section 30 . The confirmation laser projection portions 32 and 34 are screwed into the first screw portion 402 and the second screw portion 404 respectively at positions equidistant from the reference laser projection portion 30 . With such a configuration, the reference laser projection section 30 is positioned centrally between the confirmation laser projection sections 32 and 34 .
　蝶ねじ４２を時計周りに回転させると、確認用レーザー投光部３２，３４は、基準レーザー投光部３０に向かってそれぞれ水平に同距離分移動する。また、蝶ねじ４２を反時計周りに回転させると、確認用レーザー投光部３２，３４は、基準レーザー投光部３０から離れる方向に向かってそれぞれ水平に同距離分移動する。図１に示すように、レーザー投光ユニット２２の正面には、基準レーザー光Ｌ１と確認用レーザー光Ｌ２，Ｌ３との照射間隔を確認するための目盛４４が確認用レーザー投光部３２，３４の移動方向に沿って設けられている。保守員は、目盛４４を確認しながら蝶ねじ４２を回転させることにより、基準レーザー光Ｌ１と２つの確認用レーザー光Ｌ２，Ｌ３との間の照射間隔を一度に調整することができる。 When the thumbscrew 42 is rotated clockwise, the confirmation laser projection units 32 and 34 move horizontally toward the reference laser projection unit 30 by the same distance. When the thumbscrew 42 is rotated counterclockwise, the confirmation laser projection units 32 and 34 move horizontally by the same distance away from the reference laser projection unit 30 . As shown in FIG. 1, a scale 44 for checking the irradiation interval between the reference laser beam L1 and the confirmation laser beams L2 and L3 is provided on the front surface of the laser projection unit 22. along the direction of movement of By rotating the thumbscrew 42 while checking the scale 44, the maintenance personnel can adjust the irradiation interval between the reference laser beam L1 and the two confirmation laser beams L2 and L3 all at once.
３．手摺チェーンの振れ幅確認方法
　次に、振れ幅確認装置２０を用いて手摺チェーン１４の振れ幅を確認する方法について説明する。以下の説明では、手摺チェーン１４が張られている方向を「張り方向」と呼び、張り方向及び水平方向に直交する方向を「押圧方向」と呼ぶ。保守員は、エスカレーターの保守点検において、手摺チェーン１４を、規定の力で押圧方向上向き及び下向きに押したときの振れ幅の合計値が設定値の範囲内に収まるかどうかを確認する。ここでは、保守員が２０Ｎの力で手摺チェーン１４を押したときにおいて、振れ幅の設定値Ｗが３０ｍｍである場合の検査方法を例示する。 3. Method for Checking Width of Handrail Chain Next, a method for checking the swing width of the handrail chain 14 using the swing width checking device 20 will be described. In the following description, the direction in which the handrail chain 14 is stretched will be referred to as the "stretching direction", and the direction orthogonal to the stretching direction and the horizontal direction will be referred to as the "pressing direction". During the maintenance and inspection of the escalator, maintenance personnel check whether the total value of swing widths when the handrail chain 14 is pushed upward and downward in the pressing direction with a specified force is within the range of the set value. Here, an inspection method is illustrated in which the set value W of the deflection width is 30 mm when the maintenance worker pushes the handrail chain 14 with a force of 20 N.
３－１．準備工程
　準備工程では、目盛４４を参照しながら振れ幅確認装置２０の蝶ねじ４２を回して、基準レーザー投光部３０と確認用レーザー投光部３４との間の距離を振れ幅の設定値Ｗの半分である１５ｍｍに合わせる。これにより、確認用レーザー投光部３２，３４の間の照射間隔が設定値である３０ｍｍに調整される。次に、電源スイッチ３８をＯＮとし、レーザー投光ユニット２２へ電源を供給する。 3-1. Preparation Step In the preparation step, the thumbscrew 42 of the amplitude confirmation device 20 is turned while referring to the scale 44, and the distance between the reference laser projection unit 30 and the confirmation laser projection unit 34 is set to the amplitude setting value. Adjust to 15 mm, which is half of W. As a result, the irradiation interval between the confirmation laser projection units 32 and 34 is adjusted to the set value of 30 mm. Next, the power switch 38 is turned on to supply power to the laser projection unit 22 .
３－２．固定工程
　固定工程では、振れ幅確認装置２０を測定位置に固定する。手摺チェーン１４の測定対象部Ｐ１は、スプロケット１１とスプロケット１０との中間部である。ここでは、基準レーザー光Ｌ１が測定対象部Ｐ１において手摺チェーン１４の側面に水平に照射され、且つ確認用レーザー光Ｌ２，Ｌ３が基準レーザー光Ｌ１から押圧方向上向き及び下向きに位置するように、振れ幅確認装置２０が固定される。 3-2. Fixing Step In the fixing step, the amplitude confirmation device 20 is fixed at the measurement position. A measurement target portion P<b>1 of the handrail chain 14 is an intermediate portion between the sprockets 11 and 10 . Here, the reference laser beam L1 is horizontally irradiated on the side surface of the handrail chain 14 at the measurement target portion P1, and the confirmation laser beams L2 and L3 are positioned upward and downward in the pressing direction from the reference laser beam L1. Width confirmation device 20 is fixed.
　なお、固定工程では、固定位置のガイドとなるガイド盤を用いてもよい。図６はガイド盤の一例を示す図である。この図に示すガイド盤６０は、張り方向のガイドライン６２と、押圧方向のガイドライン６４とが図示されている。保守員は、ガイド盤６０を手摺チェーン１４の後ろ側に当てて、手摺チェーン１４の下側のラインを張り方向のガイドライン６２に合わせる。そして、保守員は、確認用レーザー光Ｌ２，Ｌ３が押圧方向のガイドライン６４上に位置するように振れ幅確認装置２０の位置を調整する。 In addition, in the fixing process, a guide board may be used as a guide for the fixing position. FIG. 6 is a diagram showing an example of a guide board. A guide plate 60 shown in this figure has a tension direction guideline 62 and a pressure direction guideline 64 . A maintenance worker applies the guide board 60 to the rear side of the handrail chain 14 and aligns the lower line of the handrail chain 14 with the guideline 62 in the tension direction. Then, the maintenance staff adjusts the position of the deflection checking device 20 so that the checking laser beams L2 and L3 are positioned on the guideline 64 in the pressing direction.
３－３．押圧工程及び確認工程
　確認工程では、保守員は、テンションメータを用いて、２０Ｎの力で測定対象部Ｐ１を押圧方向上向きに押圧する。この工程は「押圧工程」と呼ばれる。そして、保守員は、測定対象部Ｐ１が基準レーザー光Ｌ１と確認用レーザー光Ｌ２との間の範囲に属するかどうかを確認する。この工程は「確認工程」と呼ばれる。同様に、押圧工程において、保守員は、テンションメータを用いて、２０Ｎの力で測定対象部Ｐ１を押圧方向下向きに押圧する。そして、保守員は、確認工程において、測定対象部Ｐ１が基準レーザー光Ｌ１と確認用レーザー光Ｌ３との間の範囲に属するかどうかを確認する。 3-3. Pressing Process and Confirming Process In the confirming process, the maintenance worker presses the measurement target part P1 upward in the pressing direction with a force of 20 N using a tension meter. This step is called a "pressing step". Then, the maintenance staff confirms whether the measurement target portion P1 belongs to the range between the reference laser beam L1 and the confirmation laser beam L2. This step is called the "confirmation step". Similarly, in the pressing step, the maintenance worker uses a tension meter to press the measurement target portion P1 downward in the pressing direction with a force of 20N. Then, in the confirmation step, the maintenance personnel confirms whether the measurement target portion P1 belongs to the range between the reference laser beam L1 and the confirmation laser beam L3.
　図７は、確認工程における確認結果の一例を示す図である。この図に示す例では、測定対象部Ｐ１が基準レーザー光Ｌ１と確認用レーザー光Ｌ２との間、及び基準レーザー光Ｌ１と確認用レーザー光Ｌ３との間の範囲に収まっている。この場合、保守員は、手摺チェーン１４の振れ幅が設定値Ｗの範囲内であるとして、振れ幅の調整が不要であると判断する。 FIG. 7 is a diagram showing an example of confirmation results in the confirmation process. In the example shown in this figure, the measurement target portion P1 is within the range between the reference laser beam L1 and the confirmation laser beam L2 and between the reference laser beam L1 and the confirmation laser beam L3. In this case, the maintenance personnel determines that the swing width of the handrail chain 14 is within the range of the set value W and that adjustment of the swing width is unnecessary.
　図８は、確認工程における確認結果の他の例を示す図である。この図に示す例では、測定対象部Ｐ１が基準レーザー光Ｌ１と確認用レーザー光Ｌ２との間、及び基準レーザー光Ｌ１と確認用レーザー光Ｌ３との間の範囲を超えている。この場合、保守員は、手摺チェーン１４の振れ幅が設定値Ｗの範囲外であるとして、振れ幅の調整が必要であると判断する。 FIG. 8 is a diagram showing another example of confirmation results in the confirmation process. In the example shown in this figure, the measurement target portion P1 exceeds the range between the reference laser beam L1 and the confirmation laser beam L2 and between the reference laser beam L1 and the confirmation laser beam L3. In this case, the maintenance staff judges that the swing width of the handrail chain 14 is outside the range of the set value W, and that adjustment of the swing width is necessary.
　以上のような手摺チェーン１４の振れ幅確認方法によれば、保守員は、振れ幅の限界値を確認用レーザー光Ｌ２，Ｌ３によって確認することができるので、手摺チェーン１４を押圧しながら鋼尺等の測定機器を別途把持する必要がない。これにより、振れ幅測定の作業性を改善することが可能となる。 According to the method for confirming the swing width of the handrail chain 14 as described above, the maintenance worker can check the limit value of the swing width using the confirmation laser beams L2 and L3. There is no need to separately hold a measuring instrument such as This makes it possible to improve the workability of amplitude measurement.
４．振れ幅確認装置２０の変形例
　本実施の形態の振れ幅確認装置２０及び振れ幅確認装置２０を用いた振れ幅確認方法は、以下のように変形した態様を適用してもよい。 4. Modified Example of Amplitude Checking Device 20 The amplitude checking device 20 of the present embodiment and the amplitude checking method using the amplitude checking device 20 may be modified as follows.
　振れ幅確認装置２０を適用可能なチェーンは手摺チェーン１４に限らない。すなわち、振れ幅確認装置２０は、エスカレーターが備える他のチェーンの振れ幅測定にも利用することができる。 The chain to which the swing width confirmation device 20 can be applied is not limited to the handrail chain 14. That is, the swing width confirmation device 20 can also be used to measure the swing width of other chains provided on the escalator.
　振れ幅確認装置２０は、２つの確認用レーザー投光部３２，３４を備えているが、少なくとも１つの確認用レーザー投光部を備えていれば、その数に限定はない。 The amplitude confirmation device 20 includes two confirmation laser projection units 32 and 34, but the number is not limited as long as at least one confirmation laser projection unit is provided.
　調整機構５０の構成は必須ではない。すなわち、振れ幅確認装置２０は、基準レーザー投光部３０と確認用レーザー投光部３２，３４との間の距離が固定値である設定値Ｗに固定されていてもよい。また、調整機構５０の構成は、送りねじシャフト４０を備える構成に限らず、確認用レーザー投光部３２，３４を手で直接スライドさせる構成でもよい。 The configuration of the adjustment mechanism 50 is not essential. That is, in the amplitude confirmation device 20, the distance between the reference laser projection unit 30 and the confirmation laser projection units 32 and 34 may be fixed at the set value W, which is a fixed value. Further, the configuration of the adjustment mechanism 50 is not limited to a configuration including the feed screw shaft 40, and may be a configuration in which the confirmation laser projection units 32 and 34 are directly slid by hand.
　調整機構５０の構成において、チャネル部５２の構成は必須ではない。また、実施の形態の調整機構５０では、基準レーザー投光部３０及び確認用レーザー投光部３２，３４の下部にチャネル部５２を配置する構成としたが、これに替えて或いはこれに加えて、基準レーザー投光部３０及び確認用レーザー投光部３２，３４の上部にチャネル部を備える構成でもよい。 In the configuration of the adjustment mechanism 50, the configuration of the channel portion 52 is not essential. Further, in the adjustment mechanism 50 of the embodiment, the channel portion 52 is arranged below the reference laser projection portion 30 and the confirmation laser projection portions 32 and 34. However, instead of or in addition to this, , a channel portion may be provided above the reference laser projection portion 30 and the confirmation laser projection portions 32 and 34 .
　固定具２４は、フレキシブル三脚に限らない。すなわち、固定具２４は、レーザー投光ユニット２２を規定の位置に固定することができる構成であれば、磁石或いは床に立てる三脚等でもよい。 The fixture 24 is not limited to a flexible tripod. That is, the fixture 24 may be a magnet or a tripod or the like that can stand on the floor, as long as the fixture 24 can fix the laser projection unit 22 at a specified position.
　調整機構５０は、蝶ねじ４２を手動で回す構成としたが、モータ等のアクチュエータを用いて電動で回す構成でもよい。 Although the adjustment mechanism 50 is configured to manually rotate the thumbscrew 42, it may be configured to be electrically rotated using an actuator such as a motor.
　振れ幅確認装置２０は、手摺チェーン１４の振れ幅の数値を測定するために使用してしてもよい。この場合、保守員は、上向きの押圧工程の後に、蝶ねじ４２を回して確認用レーザー光Ｌ２の位置を測定対象部Ｐ１に合わせる。次に、保守員は、目盛４４から確認用レーザー投光部３２の位置の寸法を読む。上向きの押圧工程の後にも同様の動作を行う。このような方法によれば、手摺チェーン１４の上下の振れ幅の実値をそれぞれ測定して確認することができる。 The swing width confirmation device 20 may be used to measure the swing width of the handrail chain 14. In this case, after the upward pressing step, the maintenance worker turns the thumbscrew 42 to align the position of the confirmation laser beam L2 with the measurement target portion P1. Next, the maintenance personnel reads the size of the position of the confirmation laser projection unit 32 from the scale 44 . A similar operation is performed after the upward pressing step. According to such a method, it is possible to measure and confirm the actual values of the vertical swing width of the handrail chain 14 respectively.
　基準レーザー投光部３０、確認用レーザー投光部３２，３４は、レーザー光の焦点の調整が可能に構成されていてもよい。 The reference laser projection unit 30 and the confirmation laser projection units 32 and 34 may be configured so that the focus of the laser beam can be adjusted.
　１　トラス、　２　ステップ、　３　降り口、　４　機械室、　５　床板、　６　電動機、　７　制御装置、　８　スプロケット、　９　軸、　１０　スプロケット、　１１　スプロケット、　１２　ステップチェーン、　１３　ステップ軸、　１４　手摺チェーン、　１５　駆動装置、　１６　移動手摺、　１８　スプロケット、　２０　振れ幅確認装置、　２２　レーザー投光ユニット、　２４　固定具、　２６　開口部、　３０　基準レーザー投光部、　３２，３４　確認用レーザー投光部、　３６　バッテリ、　３８　電源スイッチ、　４０　送りねじシャフト、４２　蝶ねじ、　４４　目盛、　５０　調整機構、　５２　チャネル部、　５４　ビス、　６０　ガイド盤、　６２　ガイドライン、　６４　ガイドライン、　３０２　貫通孔、　３２２　送りねじナット、　３４２　送りねじナット、　４０２　第一ねじ部、　４０４　第二ねじ部、　Ｌ１　基準レーザー光、　Ｌ２，Ｌ３　確認用レーザー光、　Ｐ１　測定対象部 1 truss, 2 step, 3 exit, 4 machine room, 5 floor board, 6 electric motor, 7 control device, 8 sprocket, 9 shaft, 10 sprocket, 11 sprocket, 12 step chain, 13 step shaft, 14 handrail chain, 15 drive Device, 16 Moving handrail, 18 Sprocket, 20 Deflection width confirmation device, 22 Laser projection unit, 24 Fixture, 26 Opening, 30 Reference laser projection part, 32, 34 Confirmation laser projection part, 36 Battery, 38 Power switch, 40 feed screw shaft, 42 thumb screw, 44 scale, 50 adjustment mechanism, 52 channel part, 54 screw, 60 guide plate, 62 guideline, 64 guideline, 302 through hole, 322 feed screw nut, 342 feed screw nut, 402 first screw part, 404 second screw part, L1 reference laser light, L2, L3 confirmation laser light, P1 part to be measured

Claims (9)

  1. 　エスカレーターのチェーンの振れ幅を確認するための振れ幅確認装置であって、
    　測定対象部に位置する前記チェーンの側面に対して水平方向から基準レーザー光を照射する基準レーザー投光部と、前記基準レーザー光に並行な確認用レーザー光を照射する少なくとも１つの確認用レーザー投光部と、を含むレーザー投光ユニットを備え、
    　前記少なくとも１つの確認用レーザー投光部は、前記基準レーザー光と前記確認用レーザー光との間の照射間隔が前記振れ幅の設定値となる位置に配置される
    　ことを特徴とするエスカレーターのチェーンの振れ幅確認装置。     A swing width confirmation device for checking the swing width of an escalator chain,
    A reference laser beam projector that irradiates a reference laser beam from a horizontal direction onto the side surface of the chain positioned at the measurement target portion, and at least one confirmation laser beam projector that irradiates a confirmation laser beam parallel to the reference laser beam. and a laser projection unit including a light section,
    The escalator chain, wherein the at least one confirmation laser light projection unit is arranged at a position where the irradiation interval between the reference laser beam and the confirmation laser beam is the set value of the amplitude. Amplitude confirmation device.
  2. 　前記レーザー投光ユニットは、
    　前記照射間隔を調整する調整機構を含む請求項１に記載のエスカレーターのチェーンの振れ幅確認装置。     The laser projection unit is
    2. An escalator chain deflection confirmation device according to claim 1, further comprising an adjusting mechanism for adjusting said irradiation interval.
  3. 　前記レーザー投光ユニットは、
    　２つの前記確認用レーザー投光部を備え、
    　前記基準レーザー投光部は、２つの前記確認用レーザー投光部の間且つ一直線上となる位置に配置されることを特徴とする請求項２に記載のエスカレーターのチェーンの振れ幅確認装置。     The laser projection unit is
    Equipped with two said confirmation laser projection units,
    3. The escalator chain deflection confirmation device according to claim 2, wherein the reference laser projection unit is arranged in a position between and on a straight line between the two confirmation laser projection units.
  4. 　２つの前記確認用レーザー投光部は、前記基準レーザー投光部からの距離が等しい位置に配置される請求項３に記載のエスカレーターのチェーンの振れ幅確認装置。 The escalator chain amplitude confirmation device according to claim 3, wherein the two confirmation laser projection units are arranged at positions equidistant from the reference laser projection unit.
  5. 　前記調整機構は、
    　前記レーザー投光ユニットの外部から回転操作可能な送りねじシャフトと、
    　２つの前記確認用レーザー投光部のそれぞれに設けられ、前記送りねじシャフトと螺合する２つの送りねじナットと、を含み、
    　前記送りねじシャフトは、
    　順ねじの第一ねじ部と、逆ねじの第二ねじ部と、が一直線上に連結された構造を有し、
    　２つの前記送りねじナットは、
    　前記第一ねじ部及び前記第二ねじ部のそれぞれに螺合する
    　ことを特徴とする請求項３又は請求項４に記載のエスカレーターのチェーンの振れ幅確認装置。     The adjustment mechanism is
    a feed screw shaft rotatable from the outside of the laser projection unit;
    two feed screw nuts provided in each of the two confirmation laser projection units and screwed with the feed screw shaft,
    The feed screw shaft is
    Having a structure in which a first thread portion of a forward thread and a second thread portion of a reverse thread are connected in a straight line,
    The two lead screw nuts are
    The escalator chain deflection checking device according to claim 3 or 4, wherein the first threaded portion and the second threaded portion are screwed together.
  6. 　前記調整機構は、
    　前記基準レーザー投光部及び２つの前記確認用レーザー投光部が配置され、前記送りねじシャフトの軸方向に延びる溝形状のチャネル部を備え、
    　前記基準レーザー投光部は、前記チャネル部に固定され、
    　２つの前記確認用レーザー投光部は、前記チャネル部の上を前記送りねじシャフトの軸方向へスライド可能に構成される
    　請求項５に記載のエスカレーターのチェーンの振れ幅確認装置。     The adjustment mechanism is
    a groove-shaped channel part in which the reference laser projection part and the two confirmation laser projection parts are arranged and which extends in the axial direction of the feed screw shaft;
    The reference laser projection part is fixed to the channel part,
    6. The escalator chain runout confirmation device according to claim 5, wherein the two confirmation laser projection units are configured to be slidable on the channel portion in the axial direction of the feed screw shaft.
  7. 　前記レーザー投光ユニットは、
    　前記基準レーザー投光部及び２つの前記確認用レーザー投光部を外部から視認するための開口部を備え、
    　前記開口部には、２つの前記確認用レーザー投光部の可動方向に沿って目盛が設けられている
    　請求項３から請求項６の何れか１項に記載のエスカレーターのチェーンの振れ幅確認装置。     The laser projection unit is
    An opening for viewing the reference laser projection part and the two confirmation laser projection parts from the outside,
    7. The escalator chain deflection confirmation device according to any one of claims 3 to 6, wherein the opening is provided with a scale along the movable direction of the two confirmation laser projection units. .
  8. 　前記レーザー投光ユニットを固定するための固定具をさらに備えることを特徴とする請求項１から請求項７の何れか１項に記載のエスカレーターのチェーンの振れ幅確認装置。 The escalator chain deflection confirmation device according to any one of claims 1 to 7, further comprising a fixture for fixing the laser projection unit.
  9. 　請求項１から請求項８の何れか１項に記載の振れ幅確認装置を用いてエスカレーターのチェーンの振れ幅が設定値の範囲に含まれているかどうかを確認する振れ幅確認方法であって、
    　前記基準レーザー光が前記測定対象部に水平方向から照射され、前記確認用レーザー光が前記チェーンの張り方向に直交する押圧方向に重なるように前記レーザー投光ユニットを固定する固定工程と、
    　前記測定対象部を前記押圧方向に規定の力で押圧する押圧工程と、
    　前記測定対象部が前記基準レーザー光と前記確認用レーザー光との間の範囲に含まれるかどうかを確認する確認工程と、
    　を備える振れ幅確認方法。     A swing width checking method for checking whether or not the swing width of an escalator chain is within a set value range using the swing width checking device according to any one of claims 1 to 8, comprising:
    a fixing step of fixing the laser projection unit such that the reference laser beam is irradiated horizontally onto the measurement target portion and the confirmation laser beam overlaps with the pressing direction orthogonal to the tension direction of the chain;
    a pressing step of pressing the measurement target portion with a specified force in the pressing direction;
    a confirmation step of confirming whether the measurement target portion is included in a range between the reference laser beam and the confirmation laser beam;
    A runout confirmation method comprising:
PCT/JP2022/027529 2021-07-20 2022-07-13 Escalator chain deflection range confirmation device and deflection range confirmation method WO2023002895A1 (en)

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JPH0891751A (en) * 1994-09-27 1996-04-09 Mitsubishi Denki Bill Techno Service Kk Handrail driving device for escalator
JP2000205849A (en) * 1999-01-06 2000-07-28 Mitsubishi Electric Building Techno Service Co Ltd Instrument and method for measuring deviation of chain of escalator
JP2006219220A (en) * 2005-02-08 2006-08-24 Mitsubishi Electric Building Techno Service Co Ltd Elongation diagnosing device for chain
JP2009208927A (en) * 2008-03-05 2009-09-17 Mitsubishi Electric Building Techno Service Co Ltd Tool for measuring chain tension of passenger conveyer
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