JP6696103B1 - Escalator - Google Patents

Escalator Download PDF

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Publication number
JP6696103B1
JP6696103B1 JP2019099612A JP2019099612A JP6696103B1 JP 6696103 B1 JP6696103 B1 JP 6696103B1 JP 2019099612 A JP2019099612 A JP 2019099612A JP 2019099612 A JP2019099612 A JP 2019099612A JP 6696103 B1 JP6696103 B1 JP 6696103B1
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Prior art keywords
dust
escalator
sign detection
abnormality sign
measuring instrument
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Expired - Fee Related
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JP2019099612A
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JP2020193076A (en
Inventor
真 岡野
真 岡野
石川　佳延
佳延 石川
正昭 平井
正昭 平井
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Toshiba Elevator and Building Systems Corp
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Toshiba Elevator Co Ltd
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Priority to JP2019099612A priority Critical patent/JP6696103B1/en
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Priority to CN202010434652.1A priority patent/CN112010144B/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
    • B66B29/005—Applications of security monitors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B27/00—Indicating operating conditions 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
    • B66B31/003—Accessories for escalators, or moving walkways, e.g. for sterilising or cleaning for cleaning steps or pallets
    • 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

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  • Escalators And Moving Walkways (AREA)

Abstract

【課題】手摺ベルトの異常予兆を検知することできるエスカレータを提供する。【解決手段】エスカレータは、上側移動経路と下側移動経路を循環する手摺ベルトと、下側移動経路に設けて空間内の塵埃量を計測する塵埃計測器と、塵埃計測器が計測した塵埃量信号を受ける異常予兆検知部を備えている。異常予兆検知部は、受けた塵埃量信号が所定の閾値よりも大きいときに異常予兆検知信号を発信する。【選択図】図３PROBLEM TO BE SOLVED: To provide an escalator capable of detecting a sign of abnormality of a handrail belt. SOLUTION: An escalator comprises a handrail belt that circulates in an upper moving path and a lower moving path, a dust measuring instrument provided in the lower moving route to measure the amount of dust in a space, and a dust amount measured by the dust measuring instrument. An abnormality sign detection unit for receiving a signal is provided. The abnormality sign detection unit transmits the abnormality sign detection signal when the received dust amount signal is larger than a predetermined threshold value. [Selection diagram] Fig. 3

Description

本発明の実施形態は、エスカレータに関する。   Embodiments of the present invention relate to an escalator.

エスカレータの手摺ベルトについて、その循環速度等の異常を検知することが公知である。   It is known to detect abnormalities such as the circulation speed of the handrail belt of the escalator.

特開２００９−１７３３６４号公報JP, 2009-173364, A

しかし、手摺ベルトの駆動状態について異常が生じた場合に、その異常を検知するのでは、すでに生じた異常による損傷や故障が避けられないおそれがあった。
一方、異常が生じる前にその予兆を検知することで、異常による損傷や故障を避けることが望まれていた。 However, if an abnormality occurs in the driving state of the handrail belt, detecting the abnormality may inevitably cause damage or failure due to the abnormality that has already occurred.
On the other hand, it has been desired to avoid damage or failure due to the abnormality by detecting the sign before the abnormality occurs.

そこで、手摺ベルトの異常予兆を検知することできるエスカレータを提供する。   Then, the escalator which can detect the abnormality sign of a handrail belt is provided.

実施形態に係るスカレータは、上側移動経路と下側移動経路を循環する手摺ベルトと、前記下側移動経路に設けて空間内の塵埃量を計測する塵埃計測器と、前記塵埃計測器が計測した塵埃量信号を受ける異常予兆検知部を備え、前記異常予兆検知部は、受けた塵埃量信号が所定の閾値よりも大きいときに異常予兆検知信号を発信する。   The scalator according to the embodiment is a handrail belt that circulates in an upper moving path and a lower moving path, a dust measuring instrument provided in the lower moving route to measure the amount of dust in the space, and the dust measuring instrument measures the dust. An abnormality sign detection unit that receives the dust amount signal is provided, and the abnormality sign detection unit transmits the abnormality sign detection signal when the received dust amount signal is larger than a predetermined threshold value.

第１実施形態にかかるエスカレータの概略構成を示す縦断面である。It is a longitudinal section showing a schematic structure of an escalator concerning a 1st embodiment. 図１に示すＡ−Ａ断面図である。It is an AA sectional view shown in FIG. 図１に示すエスカレータにおいて、手摺ベルト及びその循環路を概略的に示す縦断面図である。FIG. 2 is a vertical sectional view schematically showing a handrail belt and its circulation path in the escalator shown in FIG. 1. 塵埃計測器、異常予兆検知部及びコントローラの関係を示すブロック図である。It is a block diagram which shows the relationship of a dust measuring device, an abnormality sign detection part, and a controller. 図４における異常予知検知部の制御フローを示すフローチャートである。5 is a flowchart showing a control flow of an abnormality prediction detection unit in FIG. 4. （ａ）は図２に示す帆布と塵埃との関係を示す斜視図であり、（ｂ）は（ａ）に示す網目の一つを示す拡大図である。(A) is a perspective view showing the relationship between the canvas and dust shown in FIG. 2, and (b) is an enlarged view showing one of the meshes shown in (a).

以下、実施形態に係るエスカレータ１について、添付図面を参照して説明する。図１に示すように、エスカレータ１は、例えば、建物の上階と下階との間に傾斜して設置されており、多数のステップ３と、手摺ベルト５とを互い同期させて駆動している。
多数のステップ３は無端チェーン７により相互に連結されており、駆動スプロケット９と従動スプロケット１１とにより循環移動する構成としてある。 Hereinafter, the escalator 1 according to the embodiment will be described with reference to the accompanying drawings. As shown in FIG. 1, the escalator 1 is installed, for example, in an inclined manner between the upper floor and the lower floor of the building, and drives a large number of steps 3 and the handrail belt 5 in synchronization with each other. There is.
The multiple steps 3 are interconnected by an endless chain 7 and are configured to be circulated by a drive sprocket 9 and a driven sprocket 11.

手摺ベルト５は内側板６の外周に沿って循環しており、図３に示すように、上側移動経路１３ａと下側移動経路１３ｂと、上側移動経路１３ａと下側移動経路１３ｂとの間で上側から下側に反転する下側反転部１３ｃ及び下側から上側に反転する上側反転部１３ｄとで構成された循環経路１３を循環移動する構成としてある。下側移動経路１３ｂは下側乗降デッキ１２と上側乗降デッキ１４との間に設けてあり且つカバー１５で覆ってある。
図２に示すように、手摺ベルト５はゴム製の本体５ａと、この本体５ａの動力受け側面に一体に設けられた帆布５ｂを備えている。本体５ａには、鋼材製の芯線１７が埋め込まれている。
また、上側移動経路１３ａにおいて内側板６の上端には案内金具１９が取り付けてあり、手摺ベルト５は、案内金具１９を摺動する。 The handrail belt 5 circulates along the outer periphery of the inner side plate 6, and as shown in FIG. 3, between the upper movement path 13a and the lower movement path 13b, and between the upper movement path 13a and the lower movement path 13b. The circulation path 13 is configured to circulate and move, which is composed of a lower reversal section 13c that reverses from the upper side to the lower side and an upper reversal section 13d that reverses from the lower side to the upper side. The lower movement path 13b is provided between the lower boarding / alighting deck 12 and the upper boarding / alighting deck 14 and is covered with a cover 15.
As shown in FIG. 2, the handrail belt 5 includes a rubber main body 5a and a canvas 5b integrally provided on the power receiving side surface of the main body 5a. A steel core wire 17 is embedded in the main body 5a.
Further, a guide fitting 19 is attached to the upper end of the inner plate 6 in the upper movement path 13a, and the handrail belt 5 slides on the guide fitting 19.

図３に示すように、手摺ベルト５は、下側反転部１３ｃ及び上側反転部１３ｄでは、コロ２１により移動が案内されていると共に、下側移動経路１３ｂには、手摺ベルト５に移動力を付与する駆動部２３及びたるみを調整するたるみ取りローラ２５が設けてある。
たるみ取りローラ２５は、互いに間隔調整自在に連結具２６で連結された一対のローラ２５ａ、２５ｂを有し、これらのローラ２５ａ、２５ｂ間の間隔を調整することにより手摺ベルト５に作用する張力を調整するようにしてある。このたるみ取りローラ２５は、例えば、ベルトをＵＰ（上昇）したときに最下部のたるみ取り部（たるみ取りローラ２５がある部分）に手摺ベルトのたるみが集中するので、この状態で手摺ベルト５に所定の荷重を掛けた状態にして、各ローラ２５ａ、２５ｂが適正に回るように調整するものである。 As shown in FIG. 3, the handrail belt 5 is guided to move by the rollers 21 in the lower reversing portion 13c and the upper reversing portion 13d, and a moving force is applied to the handrail belt 5 in the lower moving path 13b. A drive unit 23 for applying and a slack removing roller 25 for adjusting the slack are provided.
The slack eliminating roller 25 has a pair of rollers 25a and 25b connected to each other by a connecting tool 26 so that the distance between them can be adjusted. By adjusting the distance between the rollers 25a and 25b, the tension acting on the handrail belt 5 can be adjusted. I adjusted it. In the slack eliminating roller 25, for example, when the belt is UP (raised), the slack of the handrail belt is concentrated in the lowermost slack eliminating portion (where the slack eliminating roller 25 is located). With a predetermined load applied, the rollers 25a and 25b are adjusted to rotate properly.

図３に示すように、たるみ取りローラ２５の設置位置Ｔは、下側乗降デッキ１２よりも下方の位置で窪んで形成されており、且つ手摺ベルト５の循環経路１３において最も下に位置している。
図３に二点鎖線で抜き出して示すように、たるみ取りローラ２５の一対のローラ２５ａ、２５ｂ間には、塵埃計測器３１が設けてある。
この塵埃計測器３１は、たるみ取りローラ２５設置位置Ｔにおける雰囲気中の塵埃（浮遊粒子）の量を測定するものである。 As shown in FIG. 3, the installation position T of the slack eliminating roller 25 is formed in a recess below the lower boarding / alighting deck 12, and is located at the lowest position in the circulation path 13 of the handrail belt 5. There is.
As shown by the two-dot chain line in FIG. 3, a dust measuring instrument 31 is provided between the pair of rollers 25a and 25b of the slack eliminating roller 25.
The dust measuring instrument 31 measures the amount of dust (floating particles) in the atmosphere at the slack eliminating roller 25 installation position T.

図４に示すように、塵埃計測器３１は、例えば、筐体３３と、筐体３３内に設置したヒータ３５と、光照射ユニット３７と、受光ユニット３９とで構成されている。
筐体３３には雰囲気を取込む取込口３３ａと、排気口３３ｂとが形成されており、ヒータ３５の加熱により生じた上昇気流により、取込口３３ａから取り込まれた雰囲気に対して、光照射ユニット３７から光を照射すると、塵埃Ｍがその光を受けて反射するので、受光ユニット３９がその反射光を受けることで、計測部３８は塵埃の量（数）を計測する。
例えば、計測部３８は、受光ユニット３９が受光した反射光の数を塵埃の数とする。
計測部３８には、後述する異常予兆検知部４１が接続されている。 As shown in FIG. 4, the dust measuring instrument 31 includes, for example, a housing 33, a heater 35 installed in the housing 33, a light irradiation unit 37, and a light receiving unit 39.
The housing 33 is formed with an intake port 33a for taking in the atmosphere and an exhaust port 33b, and the rising airflow generated by the heating of the heater 35 causes the atmosphere taken in from the intake port 33a to emit light. When light is emitted from the irradiation unit 37, the dust M receives and reflects the light. Therefore, the light receiving unit 39 receives the reflected light, and the measuring unit 38 measures the amount (number) of dust.
For example, the measurement unit 38 sets the number of reflected lights received by the light receiving unit 39 as the number of dust particles.
An abnormal sign detection unit 41, which will be described later, is connected to the measurement unit 38.

異常予兆検知部４１は、データ格納部４３と、比較部４５と、タイマー４７と、通信部４９とを備えている。
データ格納部４３は、塵埃計測器３１の計測部３８で計測したデータを随時取込んで格納している。
比較部４５は、塵埃計測器３１から取り込んだデータを、塵埃量の閾値Ｓ（後述する）と比較しており、塵埃計測器３１から取り込んだデータ値が閾値Ｓよりも大きいか小さいかを判定する。比較部４５で比較した判定結果は、通信部４９からコントローラ５１（後述する）に送信される。
塵埃計測器３１から取り込んだデータ値が閾値Ｓよりも大きい判定結果の場合には、異常予兆検知信号をコントローラ５１に発信して警告する。警告は、コントローラ５１に設けた掃除時期表示部の点灯や、警告ランプの点滅であったり、警報等である。
タイマー４７は、塵埃計測器３１から取り込むデータの取り込み時間を設定するものであり、例えば、一日に一回、所定時に異常予兆検知部４１を駆動する時間を設定してある。尚、異常予兆検知部４１の駆動に連動して、同時に塵埃計測器３１を駆動するようにしても良い。
コントローラ５１は、エスカレータ１の運転を集中管理する制御装置であり、エスカレータ１に設けあるが、エスカレータ１から離れた管理センターに設けてあっても良い。 The abnormality sign detection unit 41 includes a data storage unit 43, a comparison unit 45, a timer 47, and a communication unit 49.
The data storage unit 43 fetches and stores the data measured by the measuring unit 38 of the dust measuring instrument 31 at any time.
The comparison unit 45 compares the data taken in from the dust measuring instrument 31 with a threshold value S (which will be described later) of the dust amount, and determines whether the data value taken in from the dust measuring instrument 31 is larger or smaller than the threshold value S. To do. The determination result compared by the comparison unit 45 is transmitted from the communication unit 49 to the controller 51 (described later).
If the determination result is that the data value fetched from the dust measuring instrument 31 is larger than the threshold value S, an abnormality sign detection signal is sent to the controller 51 to warn. The warning is, for example, lighting of a cleaning time display portion provided on the controller 51, blinking of a warning lamp, or an alarm.
The timer 47 sets a fetching time of data fetched from the dust measuring instrument 31, and, for example, once a day, sets a time for driving the abnormality sign detecting unit 41 at a predetermined time. It should be noted that the dust measuring instrument 31 may be simultaneously driven in conjunction with the driving of the abnormality sign detection unit 41.
The controller 51 is a control device that centrally manages the operation of the escalator 1, and is provided in the escalator 1, but it may be provided in a management center separate from the escalator 1.

ここで、塵埃量及びその閾値Ｓについて説明する。
比較部４５（図４参照）に設定してある塵埃量の閾値Ｓは、エスカレータ１の状況に応じて、任意の値に設定されている。例えば、エスカレータ１の設置場所（建物外や建物内）、季節（夏場や冬場）、設置地域（都心や郊外）、塵埃計測器３１の種類等によっても異なり、一律に規定されるものではないが、運転履歴等から所定の値に設定される。塵埃量及びその閾値Ｓは、２０個や３０個等の粒子数に限らず、塵埃の濃度や密度（ｐｐｍ）であっても良い。 Here, the dust amount and the threshold value S thereof will be described.
The dust amount threshold value S set in the comparison unit 45 (see FIG. 4) is set to an arbitrary value according to the situation of the escalator 1. For example, the escalator 1 varies depending on the installation location (outside the building or inside the building), the season (in the summer or winter), the installation area (in the city center or the suburbs), the type of the dust measuring instrument 31, and the like, and is not a uniform regulation. , A predetermined value is set based on the driving history and the like. The amount of dust and its threshold value S are not limited to the number of particles such as 20 or 30 and may be the concentration or density (ppm) of dust.

本実施形態にかかるエスカレータ１における手摺ベルト５の異常予兆検知のフローについて説明する。
図５に示すように、ステップＳ１で異常予兆検知部４１（図４参照）から塵埃計測器３１に作動信号が発信される、ステップＳ２で塵埃計測器３１が塵埃量計測を開始する。ステップＳ１の作動信号は、例えば、１日１回行われる試運転に同期させて発信したり、試運転とは別にタイマー４７によりセットされた所定時に発信される。
次に、ステップＳ３で異常予兆検知部４１のデータ格納部４３では、塵埃計測器３１の計測部３８が計測した塵埃量のデータを取込み、ステップＳ４で取り込まれたデータが、閾値Ｓよりも大きいか否かを判断する。
ステップＳ４で塵埃量データが閾値Ｓ大きくない場合には、異常予兆検知部４１は、正常信号をコントローラ５１に発信して終了する。一方、塵埃量データが閾値Ｓより大きい場合には、ステップＳ６で異常予知信号をコントローラ５１に発する。
コントローラ５１が異常予知信号を受けると、エスカレータ管理者は、エスカレータ１のメンテナンス作業を実施すると共に、たるみ取りローラ２５の設置位置Ｔ、換言すれば塵埃計測器３１の設置位置における清掃をおこなう。清掃は、カバー１５（図１参照）を開けて、吸引掃除機（市販の吸引掃除機）でたるみ取りローラ２５の設置位置Ｔを清掃すると共に、手摺ベルト５の帆布５ｂ面（上向きにＣ形を開いた手摺ベルトの内側面）に堆積した塵埃の清掃をおこなう。帆布５ｂ面の清掃は、設置位置Ｔと同様に吸引掃除機で吸引により清掃するが、吸引に限らず、拭き取り等により清掃しても良い。 A flow of detecting an abnormality sign of the handrail belt 5 in the escalator 1 according to the present embodiment will be described.
As shown in FIG. 5, an operation signal is transmitted from the abnormality sign detection unit 41 (see FIG. 4) to the dust measuring instrument 31 in step S1, and the dust measuring instrument 31 starts measuring the dust amount in step S2. The operation signal of step S1 is transmitted, for example, in synchronism with a trial run performed once a day, or at a predetermined time set by a timer 47 separately from the trial run.
Next, in step S3, the data storage section 43 of the abnormality sign detection section 41 takes in the dust amount data measured by the measuring section 38 of the dust measuring instrument 31, and the data taken in at step S4 is larger than the threshold value S. Determine whether or not.
When the dust amount data is not larger than the threshold value S in step S4, the abnormality sign detection unit 41 transmits a normal signal to the controller 51 and ends the processing. On the other hand, when the dust amount data is larger than the threshold value S, an abnormality prediction signal is issued to the controller 51 in step S6.
When the controller 51 receives the abnormality prediction signal, the escalator administrator performs maintenance work on the escalator 1 and cleans the installation position T of the slack removal roller 25, in other words, the installation position of the dust measuring instrument 31. For cleaning, the cover 15 (see FIG. 1) is opened, the installation position T of the slack removing roller 25 is cleaned with a suction cleaner (commercial suction cleaner), and the handrail belt 5 has a canvas 5b surface (upwardly facing C-shaped). Clean the dust that has accumulated on the inner side of the handrail belt that opened. Like the installation position T, the surface of the canvas 5b is cleaned by suction with a suction cleaner, but it is not limited to suction and may be wiped off.

本実施形態にかかるエスカレータ１の作用、効果について説明する。
エスカレータ１の稼働（図１参照）に伴って、図３に示すように、手摺ベルト５が駆動すると、時間経過に伴って、次第に塵埃が下側移動経路１３ｂに溜まってくる。特に、たるみ取りローラ２５の設置位置Ｔ付近では、下側移動経路１３ｂの中でも最も下側で窪んだ状態にあるので、塵埃が溜まり易い。
塵埃が溜まってくると、図６（ａ）に示すように、帆布５ｂを編んでいる糸５３の網目５４や、縦横の糸５３の重なり部分に入り込むようになり、帆布５ｂの網目５４を硬直させ又は図６（ｂ）に二点鎖線で示すように、縦横の糸５３の重なり部分に入り込んで網目５４を縮めるようになる。これにより、帆布５ｂの張力が大きくなり、帆布５ｂが本体５ａ（図２参照）から剥がれたり、顎部５５（図２参照）に亀裂が生じて、手摺ベルト５が損傷するおそれが生じる。
これに対して、本実施の形態では、塵埃量が閾値Ｓよりも大きくなると、異常予知信号を発することで、手摺ベルト５の清掃時期を知らせるので、帆布５ｂの網目５４が縮まる前に清掃（対処）できるから、手摺ベルト５の損傷を未然に防止できる。
しかも、手摺ベルト５の清掃は、定期的に行う必要がなく、塵埃量が閾値Ｓよりも大きくなったときにのみ実施すれば良いので、メンテナンス作業を軽減できる。 The operation and effect of the escalator 1 according to this embodiment will be described.
When the handrail belt 5 is driven as shown in FIG. 3 along with the operation of the escalator 1 (see FIG. 1), dust gradually accumulates in the lower movement path 13b with the passage of time. In particular, in the vicinity of the installation position T of the slack eliminating roller 25, since it is in the lowest depressed state of the lower movement path 13b, dust is likely to accumulate.
When dust collects, as shown in FIG. 6 (a), the mesh 53 of the yarn 53 knitting the canvas 5b and the overlapping portion of the yarns 53 in the vertical and horizontal directions enter the mesh 54 of the canvas 5b. Alternatively, as shown by the chain double-dashed line in FIG. 6 (b), the meshes 54 are contracted by entering the overlapping portions of the vertical and horizontal threads 53. As a result, the tension of the canvas 5b increases, the canvas 5b may be peeled off from the main body 5a (see FIG. 2), or the jaw 55 (see FIG. 2) may be cracked to damage the handrail belt 5.
On the other hand, in the present embodiment, when the dust amount becomes larger than the threshold value S, an abnormality predicting signal is issued to notify the cleaning time of the handrail belt 5, so that cleaning is performed before the mesh 54 of the canvas 5b is contracted ( As a result, the handrail belt 5 can be prevented from being damaged.
Moreover, cleaning of the handrail belt 5 does not need to be performed regularly, and it is sufficient to perform the cleaning only when the amount of dust becomes larger than the threshold value S, so that maintenance work can be reduced.

手摺ベルト５は、ゴム製の本体５ａの動力受け面に帆布５ｂを設けて強度を高めていると共に、強度を受ける帆布５ｂに入り込む塵埃Ｍによる帆布５ｂの張力の異常及びそれに伴う損傷を防止できる。
図３に示すように、塵埃計測器３１は、下側移動経路１３ｂの最下位置部分に設置されており、塵埃が最も溜まり易い箇所で塵埃量を測定しているので、手摺ベルト５の異常予兆検知を効果的に行うことができる。
塵埃計測器３１は、たるみ取りローラ２５のローラ２５ａ、２５ｂ間に配置してあり、周囲の雰囲気をローラ２５ａ、２５ｂで隔離するので、閉ざされた雰囲気内の塵埃を計測できるので、風の流れなどにより生じる計測誤差を防止できる。 The handrail belt 5 is provided with a canvas 5b on the power receiving surface of the rubber main body 5a to enhance its strength, and at the same time, it is possible to prevent the tension of the canvas 5b from being abnormal due to the dust M entering the canvas 5b which receives the strength and the damage thereto. ..
As shown in FIG. 3, the dust measuring instrument 31 is installed at the lowermost position portion of the lower movement path 13b and measures the dust amount at the place where dust is most likely to be accumulated. Sign detection can be performed effectively.
The dust measuring instrument 31 is arranged between the rollers 25a and 25b of the slack eliminating roller 25, and since the surrounding atmosphere is isolated by the rollers 25a and 25b, it is possible to measure the dust in the closed atmosphere. It is possible to prevent a measurement error caused by the above.

図４に示すように、異常予兆検知部４１は、エスカレータ全体の駆動を制御するコントローラ５１に異常予兆検知信号を送信するから、手摺ベルト５の異常予兆検知をエスカレータ１の管理と一緒に行うことができる。
上述した実施形態は、例として提示したものであり、発明の範囲を限定することは意図していない。これら新規な実施形態は、その他の様々な形態で実施されることが可能であり、発明の要旨を逸脱しない範囲で、種々の省略、置き換え、変更を行うことができる。実施形態やその変形は、発明の範囲や要旨に含まれるとともに、特許請求の範囲に記載された発明とその均等の範囲に含まれる。
例えば、上述の実施形態において、塵埃計測器３１は、塵埃量（数）を計測するものであったが、塵埃（浮遊粒子）の数を計測することに限らず、雰囲気における塵埃の密度や濃度とし、閾値Ｓもそれに対応する密度や濃度としても良い。 As shown in FIG. 4, since the abnormality sign detection unit 41 transmits an abnormality sign detection signal to the controller 51 that controls the driving of the entire escalator, the abnormality sign detection of the handrail belt 5 should be performed together with the management of the escalator 1. You can
The above-described embodiments are presented as examples, and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the spirit of the invention. The embodiments and modifications thereof are included in the scope and gist of the invention, and are also included in the invention described in the claims and an equivalent range thereof.
For example, in the above-described embodiment, the dust measuring device 31 measures the amount (number) of dust, but the dust measuring device 31 is not limited to measuring the number of dust (floating particles), and the density and concentration of dust in the atmosphere. The threshold value S may be a density or a density corresponding to the threshold value S.

１…エスカレータ、５…手摺ベルト、５ａ…本体、５ｂ…帆布、１３ｂ…下側移動経路、２５…たるみ取りローラ、２５ａ、２５ｂ…ローラ、３１…塵埃計測器、４１…異常予兆検知部、５１…コントローラ、Ｍ…塵埃、Ｔ…たるみ取りローラの設置位置、Ｓ…閾値。   DESCRIPTION OF SYMBOLS 1 ... Escalator, 5 ... Handrail belt, 5a ... Main body, 5b ... Canvas, 13b ... Lower movement path, 25 ... Slack removal roller, 25a, 25b ... Roller, 31 ... Dust meter, 41 ... Abnormality sign detection part, 51 ... controller, M ... dust, T ... installation position of slack eliminating roller, S ... threshold value.

Claims (5)

上側移動経路と下側移動経路を循環する手摺ベルトと、
前記下側移動経路に設けて空間内の塵埃量を計測する塵埃計測器と、
前記塵埃計測器が計測した塵埃量信号を受ける異常予兆検知部を備え、
前記異常予兆検知部は、受けた塵埃量信号が所定の閾値よりも大きいときに異常予兆検知信号を発信するエスカレータ。 A handrail belt that circulates through the upper movement path and the lower movement path,
A dust measuring instrument provided in the lower movement path to measure the amount of dust in the space,
An abnormality sign detection unit that receives the dust amount signal measured by the dust measuring instrument,
The abnormality sign detection unit is an escalator that transmits an abnormality sign detection signal when the received dust amount signal is larger than a predetermined threshold value. 前記手摺ベルトは、ゴム製の本体と、本体の動力受け側面に設けた帆布とを有する請求項１に記載のエスカレータ。   The escalator according to claim 1, wherein the handrail belt has a rubber main body and a canvas provided on a power receiving side surface of the main body. 前記塵埃計測器は、前記下側移動経路の最下位置部分に設置されている請求項１又は２に記載のエスカレータ。   The escalator according to claim 1 or 2, wherein the dust measuring device is installed at a lowermost position portion of the lower movement path. 前記下側移動経路には、前記最下位置部分に一対のローラからなるたるみ取りローラを有し、前記塵埃計測器は、前記一対のローラ間に設けてある請求項３に記載のエスカレータ。   The escalator according to claim 3, wherein the lower movement path has a slack eliminating roller formed of a pair of rollers at the lowermost position portion, and the dust measuring instrument is provided between the pair of rollers. 前記異常予兆検知部は、エスカレータの駆動を制御するコントローラに異常予兆検知信号を送信する請求項１〜４のいずれか一項に記載のエスカレータ。   The escalator according to claim 1, wherein the abnormality sign detection unit transmits an abnormality sign detection signal to a controller that controls driving of the escalator.
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JPH1160134A (en) * 1997-08-08 1999-03-02 Hitachi Building Syst Co Ltd Dust amount detecting device for passenger conveyer
JPH11199170A (en) * 1998-01-16 1999-07-27 Hitachi Building Systems Co Ltd Detection device for amount of dust deposition for passenger conveyor
JP2000335868A (en) * 1999-05-24 2000-12-05 Hitachi Building Systems Co Ltd Dust accumulation preventing device for escalator provided with step for wheelchair
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