JP2012210994A - Method for inspecting footstep of passenger conveyor - Google Patents

Method for inspecting footstep of passenger conveyor Download PDF

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JP2012210994A
JP2012210994A JP2011077054A JP2011077054A JP2012210994A JP 2012210994 A JP2012210994 A JP 2012210994A JP 2011077054 A JP2011077054 A JP 2011077054A JP 2011077054 A JP2011077054 A JP 2011077054A JP 2012210994 A JP2012210994 A JP 2012210994A
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riser
laser distance
passenger conveyor
tread
arm
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Masashi Gomi
雅志 五味
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Hitachi Ltd
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Hitachi Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a high-precision inspecting method having high reliability for a number of steps, which method reduces a sensuous inspection related to a footstep of a passenger conveyor by an operator.SOLUTION: A measuring arm 40 is formed by integrating a step side arm and a riser side arm. The step side arm and the riser side arm have a plurality of laser distance sensors 41, 42 and a plurality of laser distance sensors 43, 44, respectively. The measuring arm 40 is moved to the width direction of the footstep 13 so that knurls on a surface of the footstep 13 and knurls on a surface of a riser 14 are measured simultaneously. Thereby, an inspection with high reliability can be performed even related to e.g. an engagement of the knurls of both of the footstep and the riser.

Description

本発明は、エスカレータや動く歩道等の乗客コンベアに係り、特に乗客コンベア内を循環移動する踏段の検査方法に関する。   The present invention relates to passenger conveyors such as escalators and moving walkways, and more particularly to a method for inspecting steps that circulate within a passenger conveyor.

一般に乗客コンベアは、無端状に接続された駆動チェーンに多数の踏段を連結して循環移動するように構成されており、利用客はこの踏段に乗ることで上下階床等へ円滑に移動することができる。利用客の殆どは不特定多数で、履物も多様化していることから、踏段の踏面を構成する踏板には、スリップ等に配慮した構造が求められている。   In general, passenger conveyors are configured to circulate by connecting a number of steps to an endlessly connected drive chain, and passengers can move smoothly to the upper and lower floors by riding on these steps. Can do. Since most of the passengers are unspecified and footwear is diversified, the tread constituting the tread of the step is required to have a structure that takes into account slip and the like.

このため、従来から踏段の踏板には波山を設けることが多く、この波山の強度を高め磨耗に強くする目的で、例えば特許文献１には、金属薄板を連続した波形に折り曲げて形成すること等が提案されている。   For this reason, conventionally, the tread of the step is often provided with a wavy mountain. For the purpose of increasing the strength of the wavy mountain and making it more resistant to wear, for example, Patent Document 1 discloses that a thin metal plate is bent into a continuous wave shape. Has been proposed.

他方、踏段は、乗客コンベアの稼動中は常に循環移動していることから、その寸法精度が低下すると周辺機器と接触し破損する恐れがある。そこで、例えば踏段の平坦度の測定には、治具と踏段との間にシックネスゲージを入れてその隙間を計測し、また波山のピッチ確認は、棒にピッチを測定するためのピンを設けた治具を波山の間に入れて摺動させ、その接触の有無ならびに摩擦力から良否を判定することで、踏段の形状を検査していた。   On the other hand, since the step constantly circulates during operation of the passenger conveyor, if the dimensional accuracy is lowered, the step may come into contact with peripheral devices and be damaged. Therefore, for example, to measure the flatness of the step, a gap is measured by inserting a thickness gauge between the jig and the step, and for checking the pitch of the wavy mountain, a pin for measuring the pitch is provided on the bar. A jig was placed between wave peaks and slid, and the shape of the step was inspected by judging the quality from the presence / absence of contact and the frictional force.

特開平１−３０８３８８号公報JP-A-1-308388

従来の踏段の検査は、前記したように作業者の感覚に頼った検査方法であったため、無理やり力を入れれば不良品でも良品と判定されてしまう可能性があり、判定が曖昧であった。乗客コンベアの踏段は、櫛板と踏板の波山との噛み合いや、踏板の波山とライザー面の波山との噛み合いが重要であるため、波山の形状を正確に把握することが特に重要であり、多数連結される踏段の全てについて高精度に検査することが求められる。   Since the conventional step inspection is an inspection method that relies on the operator's sense as described above, it is possible that a defective product may be determined to be a non-defective product if force is applied, and the determination is ambiguous. As for the steps of the passenger conveyor, it is particularly important to accurately grasp the shape of the wave mountain, since the engagement between the comb plate and the wave mountain of the tread plate and the wave mountain of the tread plate and the wave mountain of the riser surface are important. It is required to inspect all the steps to be connected with high accuracy.

本発明の目的は、乗客コンベアの踏段に対する人手による感覚的検査を軽減し、多数の踏段に対して信頼性の高い高精度な検査方法を提供することにある。   An object of the present invention is to provide a highly reliable and highly accurate inspection method for a large number of steps by reducing the manual sensory inspection on the steps of a passenger conveyor.

本発明は、乗客コンベアの踏段を検査する方法において、その特徴とするところは、踏板側アームとライザー側アームとが一体になった測定アームを有し、踏板側アームには複数のレーザー距離センサを有し、ライザー側アームには複数のレーザー距離センサを有し、前記測定アームを踏段の幅方向に移動することにより、踏板面の波山とライザー面の波山とを同時に計測することにある。   The present invention is a method for inspecting a step of a passenger conveyor, characterized by having a measurement arm in which a tread side arm and a riser side arm are integrated, and the tread side arm has a plurality of laser distance sensors. The riser side arm has a plurality of laser distance sensors, and by moving the measurement arm in the width direction of the step, the wave mountain on the tread surface and the wave mountain on the riser surface are measured simultaneously.

その他の特徴は、以下述べる実施の形態で明らかにする。   Other features will be clarified in the embodiments described below.

本発明によれば、作業者の感覚に頼らない踏段の検査が可能となり、かつ非接触でもって踏板面とライザー面を同時に計測することで、両者の噛み合い等に対しても信頼性の高い高精度な検査が可能となる。   According to the present invention, it is possible to inspect a step that does not depend on the operator's senses, and by simultaneously measuring the tread surface and the riser surface in a non-contact manner, it is highly reliable for the engagement between the two. Accurate inspection is possible.

本発明の一実施例に係る乗客コンベアの上部付近の概略側面図である。It is a schematic side view of the upper part vicinity of the passenger conveyor which concerns on one Example of this invention. 図１における踏段単体の背面図である。It is a rear view of the single step in FIG. 図１における踏段単体の側面図である。It is a side view of the single step in FIG. 本発明の一実施例に係る踏段検査方法の斜視図である。It is a perspective view of the step inspection method concerning one example of the present invention. 本発明の一実施例に係る踏段検査方法の平面図である。It is a top view of the step inspection method concerning one example of the present invention. 本発明の一実施例に係る踏段の主要な規定値を説明する図である。It is a figure explaining the main prescription | regulation value of the step which concerns on one Example of this invention. 本発明の一実施例に係る踏段の測定結果を示す図である。It is a figure which shows the measurement result of the step which concerns on one Example of this invention. 本発明の一実施例に係る検査方法のフローチャート例である。It is an example of the flowchart of the inspection method which concerns on one Example of this invention.

以下、本発明の実施の形態を図示する一実施例を参照して説明する。   Hereinafter, an embodiment of the present invention will be described with reference to an example.

先ず、本発明の検査対象である乗客コンベア及びその踏段の構成について、図１に示す乗客コンベアの上部付近の側面図、及び図２と図３に示す踏段単体の背面図と側面図を用いて説明する。   First, with respect to the configuration of the passenger conveyor and its steps, which are inspection targets of the present invention, a side view of the vicinity of the upper portion of the passenger conveyor shown in FIG. 1, and a rear view and a side view of the single step shown in FIGS. explain.

図１において、乗客コンベアは、下階床（図示省略）から上階床Ｆにかけて設置され、無端状に接続されたチェーン２に連結されて移動する多数の踏段３と、この踏段３と同期して移動するハンドレール４とでもって乗客を乗降部１２へ輸送する。これら移動体は、制御装置５によりモータ６を制御し、その回転が減速機７により減速されて駆動チェーン８を介して駆動車９の回転により駆動され、各々案内レール１０及び欄干１１に沿って移動する仕組みである。   In FIG. 1, a passenger conveyor is installed from a lower floor (not shown) to an upper floor F, and is linked to a chain 2 connected endlessly and is moved in synchronization with the step 3. The passenger is transported to the boarding / alighting section 12 with the moving handrail 4. These moving bodies control the motor 6 by the control device 5, the rotation of which is decelerated by the speed reducer 7, and is driven by the rotation of the driving vehicle 9 through the drive chain 8, respectively along the guide rail 10 and the balustrade 11. It is a mechanism to move.

踏段３は、図２及び図３に示すように、前輪１６及び後輪１７が案内レール１０に案内され、樹脂ガイド１８で隔離されつつスカート１９、デッキ２０に沿って移動する。このとき踏段３は、乗降部１２では、踏段３に波山状に成形された踏板１３が櫛板２２に固定された櫛２１とかみ合いながら通過する。また、その前後の踏段３との間隙や、スカート１９との隙間が法律や規格により規定されているため、それらの寸法が規定値内にあるか確認する必要がある。   As shown in FIGS. 2 and 3, the step 3 moves along the skirt 19 and the deck 20 while the front wheels 16 and the rear wheels 17 are guided by the guide rails 10 and are separated by the resin guides 18. At this time, the step 3 passes through the boarding / alighting portion 12 while the step plate 13 formed in a wavy shape on the step 3 is engaged with the comb 21 fixed to the comb plate 22. Further, since the gap between the front and rear steps 3 and the gap with the skirt 19 are defined by laws and standards, it is necessary to confirm whether these dimensions are within the specified values.

そこで、踏段３を取り付けた状態でそれぞれの踏段の寸法を測定しようとすると、先ず、踏段３の前輪１６と後輪１７を固定し、櫛２１とのかみ合いを確認するため、踏板１３の波山のピッチ、波山の高さ、平坦度、直角度等をノギスや、ハイトゲージ、角度計、ストレッチとシックネスゲージなどを用い、制約の多い窮屈な環境下で測定することになる。したがって、踏段３の寸法を測定する作業には大変な手間がかかることになる。   Therefore, when trying to measure the dimensions of each step with the step 3 attached, first, the front wheel 16 and the rear wheel 17 of the step 3 are fixed, and in order to confirm the engagement with the comb 21, Pitch, wave height, flatness, squareness, etc. will be measured under caustic environment with many restrictions using calipers, height gauge, angle meter, stretch and thickness gauge. Therefore, it takes a lot of labor to measure the dimensions of the steps 3.

次に、本発明による検査方法の一実施例を図４〜図８を用いて説明する。   Next, an embodiment of the inspection method according to the present invention will be described with reference to FIGS.

図４は本発明の一実施例に係る踏段検査方法の斜視図、図５はその平面図である。測定アーム４０の踏板１３側のアームにはレーザー距離センサ４１，４２が所定の間隔で設けられており、ライザー１４側にはレーザー距離センサ４３，４４が所定の間隔で設けられている。   FIG. 4 is a perspective view of a step inspection method according to an embodiment of the present invention, and FIG. 5 is a plan view thereof. Laser distance sensors 41 and 42 are provided at predetermined intervals on the arm on the tread plate 13 side of the measurement arm 40, and laser distance sensors 43 and 44 are provided at predetermined intervals on the riser 14 side.

測定アーム４０を踏段３の横方に走査すると、レーザー距離センサ４１，４２は踏板１３に向けてレーザーを照射し、レーザー距離センサ４３，４４はライザー１４に向けてレーザーを照射することで、その反射レーザーの変位量を処理し、踏板１３及びライザー１４の波山等の形状を求める。   When the measuring arm 40 is scanned to the side of the step 3, the laser distance sensors 41 and 42 irradiate the laser toward the tread 13, and the laser distance sensors 43 and 44 irradiate the laser toward the riser 14, The amount of reflected laser displacement is processed to determine the shape of the tread 13 and riser 14 such as wave peaks.

測定アーム４０の移動機構は、図５の平面図に示すように、一端を単軸ロボット４５に連結し、他端をリニアガイド４６で案内する構成とし、この測定アーム４０のｘ軸方向の位置は、単軸ロボット４５と平行に配置した磁気テープ４７の位置を磁気センサ４８で読み取ることで検出している。   As shown in the plan view of FIG. 5, the moving mechanism of the measuring arm 40 is configured such that one end is connected to the single-axis robot 45 and the other end is guided by the linear guide 46, and the position of the measuring arm 40 in the x-axis direction is set. Detects the position of the magnetic tape 47 arranged in parallel with the single-axis robot 45 by reading it with the magnetic sensor 48.

図６に本実施例で求める踏段の主要な規定値を示す。ここでは、波山ｎ１とｎ２のみを拡大表示しており、波山ｎ１とｎ２の平行度をａ１，ａ２の差で求め、ｘ軸との直交角度を直角度ｂ、その間隔をピッチｃとして表している。   FIG. 6 shows the main prescribed values of the steps obtained in this embodiment. Here, only the wave peaks n1 and n2 are enlarged, the parallelism between the wave peaks n1 and n2 is obtained by the difference between a1 and a2, the orthogonal angle with the x axis is expressed as a perpendicular angle b, and the interval is expressed as a pitch c. Yes.

図７(a)に測定アーム４０を一定速度でｘ軸方向に移動することで、レーザー距離センサにより測定した結果をプロットした例を示す。Ｘ軸は磁気センサ４８で検出したレーザー距離センサの位置、ｙ軸にレーザー距離センサで検出した波山の高さ方向の大きさを示す。尚、ここでは一台のレーザー距離センサのプロット例を代表して示すが、レーザー距離センサ４１〜４４は対応する位置の波山に応じて同様な波形となる。   FIG. 7 (a) shows an example in which the result of measurement by the laser distance sensor is plotted by moving the measurement arm 40 in the x-axis direction at a constant speed. The X axis indicates the position of the laser distance sensor detected by the magnetic sensor 48, and the y axis indicates the height of the wave mountain detected by the laser distance sensor. In addition, although the example of a plot of one laser distance sensor is shown here representatively, the laser distance sensors 41-44 become the same waveform according to the wave mountain of a corresponding position.

図７(b)は図７(a)のプロット値を処理して波山の形状を描画した例を示す。ここでは、踏板１３の波山をレーザー距離センサ４１，４２で測定し、レーザー距離センサ４１の測定値を２点鎖線、レーザー距離センサ４２の測定値を実線で示す。このようにすることで、２点鎖線と実線との波山の差bから直角度bを求めることができ、ピッチ差aから平行度を求めることができる。勿論、このような方法によらず、図７(a)のプロットを基に波山の形状を計測できることから、図６に示す手法で直角度、平行度等を計測することも可能である。   FIG. 7B shows an example in which the plot values of FIG. Here, the crest of the tread 13 is measured by the laser distance sensors 41 and 42, the measured value of the laser distance sensor 41 is indicated by a two-dot chain line, and the measured value of the laser distance sensor 42 is indicated by a solid line. By doing in this way, the perpendicularity b can be calculated | required from the wave-like difference b of a dashed-two dotted line and a continuous line, and parallelism can be calculated | required from the pitch difference a. Of course, the shape of the wavy mountain can be measured based on the plot of FIG. 7A without using such a method, and the squareness, parallelism, etc. can be measured by the method shown in FIG.

最後に図８を用いて、以上述べた踏段の検査方法の詳細なフローチャートを説明する。   Finally, a detailed flowchart of the step inspection method described above will be described with reference to FIG.

検査を開始（ステップ８０）すると、最初に検査装置の校正の要否を判定し（ステップ８１）、校正が必要な場合は校正を実施（ステップ８２）した後、ワークのセットを行なう（ステップ８３）。ここでは、踏段１３を図５及び図６の検査箇所に設置する。   When inspection is started (step 80), it is first determined whether or not the inspection apparatus needs to be calibrated (step 81). If calibration is necessary, calibration is performed (step 82), and then the workpiece is set (step 83). ). Here, the step 13 is installed at the inspection location in FIGS. 5 and 6.

次に、測定開始ボタンを押してレーザー測定を開始し（ステップ８４，８５）、単軸ロボットを移動開始する（ステップ８６）ことで測定アーム４０（図５）を踏段１３の幅方向に一定速度で移動する。この測定アーム４０の位置情報を磁気センサから取得しつつ（ステップ８７）、レーザー距離センサ４１〜４４からの高さ情報を取得し（ステップ８８）、それらの情報を校正値で修正する（ステップ８９）。   Next, the measurement start button is pressed to start laser measurement (steps 84 and 85), and the movement of the single-axis robot is started (step 86), whereby the measurement arm 40 (FIG. 5) is moved at a constant speed in the width direction of the step 13. Moving. While acquiring the position information of the measurement arm 40 from the magnetic sensor (step 87), the height information from the laser distance sensors 41 to 44 is acquired (step 88), and the information is corrected with the calibration value (step 89). ).

以上の測定動作（ステップ８７〜８９）を継続することで、単軸ロボットが踏段１３の他端まで移動すると（ステップ９０）、移動を停止し（ステップ９１）、レーザー測定を終了する（ステップ９２）。   By continuing the above measurement operation (steps 87 to 89), when the single-axis robot moves to the other end of the step 13 (step 90), the movement is stopped (step 91) and the laser measurement is ended (step 92). ).

このようにして取得した高さ（y軸）及び位置(x軸)情報を基にして、次に図７で説明した測定処理を行う。すなわち、高さ（y軸）及び位置(x軸)情報から波山の形状を認識し（ステップ９３）、波山のピッチの計測（ステップ９４）、波山の直角度・平行度の計測（ステップ９５）、踏板面とライザー面のピッチのずれの計測（ステップ９６）、波山の高さ情報から平坦度の計測（ステップ９７）を行なって、正規の寸法と比較して合否判定し、その結果を保存する（ステップ９８）。   Based on the height (y-axis) and position (x-axis) information acquired in this way, the measurement process described in FIG. 7 is performed next. That is, the shape of the wave mountain is recognized from the height (y axis) and position (x axis) information (step 93), the pitch of the wave mountain (step 94), and the squareness and parallelism of the wave mountain (step 95). Measure the pitch deviation between the tread surface and the riser surface (Step 96), measure the flatness from the height information of the hills (Step 97), make a pass / fail judgment compared to the normal dimensions, and save the result (Step 98).

以上により１つの踏段の検査を終了すると、踏段を取り外し（ステップ９９）、全ての踏段の測定が終了する（ステップ１００）と、この処理を終了する（ステップ１０１）。   When the inspection of one step is completed as described above, the step is removed (step 99), and when all the steps are measured (step 100), this process is ended (step 101).

本実施例では、以上のようにして踏板及びライザー体の形状等を、x軸を共通にして同時に測定することができるので、波山のピッチ、波山の高さ、平坦度、直角度等を互いに関連付けて検査するが可能となり、両者の噛み合い等に対しても信頼性の高い高精度な検査を効率的に行なうことができる。   In this embodiment, the shape of the tread board and the riser body, etc. can be measured simultaneously with the x-axis in common as described above, so the pitch of the ridges, the height of the ridges, the flatness, the perpendicularity, etc. The inspection can be performed in association with each other, and the highly reliable and highly accurate inspection can be efficiently performed for the meshing between the two.

１・・・乗客コンベア、２・・・チェーン、３・・・踏段、４・・・ハンドレール、５・・・制御装置、６・・・モータ、７・・・減速機、８・・・駆動チェーン、９・・・駆動車、１０・・・案内レール、１１・・・欄干、１２・・・乗降部、１３・・・踏板、１４・・・ライザー体、１５・・・ブラケット体、１６・・・前輪、１７・・・後輪、１８・・・樹脂ガイド、１９・・・スカート、２０・・・デッキ、２１・・・櫛、２２・・・櫛板、４０・・・測定アーム、４１〜４４・・・レーザー距離センサ、４５・・・単軸ロボット、４６・・・リニアガイド、４７・・・磁気テープ、４８・・・磁気センサ   DESCRIPTION OF SYMBOLS 1 ... Passenger conveyor, 2 ... Chain, 3 ... Step, 4 ... Hand rail, 5 ... Control apparatus, 6 ... Motor, 7 ... Reducer, 8 ... Drive chain, 9 ... drive wheel, 10 ... guide rail, 11 ... railing, 12 ... boarding / exiting part, 13 ... tread, 14 ... riser body, 15 ... bracket body, 16 ... front wheel, 17 ... rear wheel, 18 ... resin guide, 19 ... skirt, 20 ... deck, 21 ... comb, 22 ... comb plate, 40 ... measurement Arm 41-44 ... Laser distance sensor 45 ... Single axis robot 46 ... Linear guide 47 ... Magnetic tape 48 ... Magnetic sensor

Claims (2)

乗客コンベアの踏段を検査する方法において、踏板側アームとライザー側アームとが一体になった測定アームを有し、踏板側アームには複数のレーザー距離センサを有し、ライザー側アームには複数のレーザー距離センサを有し、前記測定アームを踏段の幅方向に移動することにより、踏板面の波山とライザー面の波山とを同時に計測することを特徴とする乗客コンベアの踏段の検査方法。   In a method for inspecting the steps of a passenger conveyor, the tread side arm and the riser side arm have a measurement arm integrated, the tread side arm has a plurality of laser distance sensors, and the riser side arm has a plurality of laser distance sensors. A method for inspecting a step of a passenger conveyor, comprising a laser distance sensor, and simultaneously measuring a wave crest on a tread surface and a wave crest on a riser surface by moving the measuring arm in the width direction of the step. 請求項１記載において、前記踏板面の波山とライザー面の波山とから、前記踏板とライザーとのそれぞれの波山ピッチ、平行度、直角度を同時に計測することを特徴とする乗客コンベアの踏段の検査方法。   The inspection of a step of a passenger conveyor according to claim 1, wherein the wave crest pitch, parallelism, and perpendicularity of each of the tread board and the riser are simultaneously measured from the crests of the tread surface and the riser surface. Method.
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