JP3767573B2

JP3767573B2 - Passenger conveyor

Info

Publication number: JP3767573B2
Application number: JP2003139736A
Authority: JP
Inventors: 忠一斎藤; 清基糟谷; 通顕松本; 龍彦高橋; 和平小嶋
Original assignee: Hitachi Ltd
Current assignee: Hitachi Ltd
Priority date: 2003-05-19
Filing date: 2003-05-19
Publication date: 2006-04-19
Anticipated expiration: 2018-05-11
Also published as: JP2003300687A

Description

【０００１】
【発明の属する技術分野】
本発明は、エスカレーターや電動道路等の乗客コンベアに係り、特に、乗降床先端に櫛板を備えた乗客コンベアに関する。
【０００２】
【従来の技術】
一般に、エスカレーターや電動道路等の乗客コンベアは、踏板表面に踏板移動方向に沿って平行に複数のクリートを設け、これらクリートに非接触状態で噛合う櫛歯を備えた櫛板を乗降床先端に設けている。このような櫛歯とクリートとの非接触噛合いにより、移動する踏板と乗降床との隙間に挟まれようとした履物や異物を櫛歯先端ですくい上げて挟まれるのを防止している。
【０００３】
この種構成の乗客コンベアにおいて、踏板上に乗せた車椅子や買物カート等の運搬車を乗降床に移動させようとするとき、車輪が櫛歯に突き当たるので、円滑に運搬車を降ろすことができない問題があり、また、乗客が乗降床に降りる際にも爪先が前記櫛歯に当たって転倒事故を誘発する問題がある。
【０００４】
これらの問題をなくそうと、乗降床の傾斜部全体を緩傾斜にした乗客コンベアが提案されている（特開平4−129991 号公報）。
【０００５】
【発明が解決しようとする課題】
上記乗降床の傾斜部全体を緩傾斜にした構成は、乗降床の水平部から櫛板先端までの傾斜が緩くなり、櫛板先端も従来に比べて緩傾斜で踏板のクリートと噛み合うようになるので、運搬車を乗降床へ移動させる際の車輪の櫛板への突き当たる衝撃が少なくなり、また乗客の爪先が前記櫛板に当たる事故は少なくなった。
【０００６】
しかし、依然として、運搬車の車輪の櫛板への突き当たりによる衝撃や、乗客の櫛板へのつまずきが発生しており、さらなる改善が要求されている。
【０００７】
本発明の目的の一つは、運搬車や乗客の踏板から乗降床への移動が安全な乗客コンベアを提供することにある。
【０００８】
本発明の目的のもう一つは、必要な強度を確保して運搬車や乗客の踏板から乗降床への移動を安全に行い得る櫛板を乗降床の先端に備えた乗客コンベアを提供することにある。
【０００９】
【課題を解決するための手段】
本発明は上記目的を達成するために、無端状に複数連結されて移動し表面に移動方向と平行な複数のクリートを有する踏板と、これら踏板の往路側両終端部に設けられた乗降床と、この乗降床の先端に取付けられ前記クリートに非接触状態で噛合う櫛歯を有する櫛板とを備えた乗客コンベアにおいて、前記乗降床の櫛板取付け部に固定される櫛板の基部の頂面に形成される傾斜面の傾斜角が、前記櫛板の頂部先端から基部端にかけて形成される平坦な傾斜面の傾斜角よりも小さく、前記櫛板の頂部先端が前記クリート頂部よりも低い位置になるようにしたのである。
【００１０】
上記構成によれば、踏板から乗降床へ移動する運搬車や乗客の爪先に対して、踏板クリートと噛合う櫛板先端部に凸部が存在しないので、運搬車は比較的小さい力でも櫛板先端部に乗り上げることができ、一旦乗り上げると、その惰性でそのまま乗降床側へ移動することができる。同様に、乗客の爪先の櫛板への乗り上げも容易になり、つまずきは低減される。
【００１１】
【発明の実施の形態】
以下、本発明の一実施の形態を図１〜図５に示すエスカレーターについて説明する。エスカレーター１は、上階床２と下階床３とに跨って設置された枠体４と、この枠体４内に案内され無端状に連結されて循環移動する複数の踏板５と、これら踏板５の往路側両終端部に設けられた上部乗降床６及び下部乗降床７と、前記踏板５の往路側両側に沿って立設された欄干８Ａ，８Ｂと、この欄干８Ａ，８Ｂの周縁に案内されて移動する無端状の移動手摺９Ａ，９Ｂとを備えている。
【００１２】
前記上部乗降床６と下部乗降床７の構成は、同じ構成をしているので、詳細な説明は下部乗降床７を一例とし、単に乗降床７として説明する。
【００１３】
乗降床７は、図２に示すように、強度部材１０とその表面の化粧板１１とで構成され、前記上階床２及び下階床３と面一に設置される水平床１２とこれに続く傾斜床１３とを有している。傾斜床１３は、水平床１２に対して約５度の傾斜角θ１で傾斜しており、その先端部が、踏板５の表面に接近している。傾斜床１３の踏板５に接近した先端部に、櫛板１４を固定している。この櫛板１４を固定する傾斜床１３の先端部には、図１（ａ），（ｂ）に示すように、櫛板取付け部１６が形成されており、この櫛板取付け部１６の上面に前記水平床１２に対して傾斜角θ２で傾斜する取付け面１５が形成されている。このように形成された櫛板取付け部１６にねじ穴１７が設けられ、このねじ穴１７に前記櫛板１４を貫通したビス１８を捩じ込むことにより、前記櫛板１４を傾斜床１３の先端部に固定している。
【００１４】
櫛板１４は、前記ビス１８の貫通穴１９を有し前記櫛板取付け部１６に固定される基部２０と、櫛部２１とで構成されている。前記櫛部２１は、後述する複数のクリート５Ｃと非接触で噛合う複数の櫛歯２２と、その付け根部２３とで構成されている。前記櫛歯２２の間隔は、対向する踏板５の表面に踏板移動方向に長く、踏板幅方向に複数平行に形成されたクリート５Ｃの間隔と同じピッチで形成されている。そして、櫛板１４は、櫛部２１の表面に前記乗降床７の水平床１２に対して１０〜１５度の傾斜角θ３で傾斜する傾斜面２４と、前記水平床１２に対して１５〜２０度の傾斜角θ４で傾斜し、前記傾斜面２４に連続して前記基部２０側に延在する傾斜面２５と、この傾斜面２５と前記基部２０端間に前記水平床１２に対して前記傾斜角θ４よりも小さい傾斜角θ５の傾斜面２６を形成している。
【００１５】
上記構成の櫛板１４は、全長Ｌのうち、長さＬａが前記乗降床７の櫛板取付け部１６の先端部から張出しており、前記傾斜面２４は張出し長さＬａよりも短い長さＬｂに形成され、さらに、傾斜面２５は長さＬｃを有して形成されており、この二つの傾斜面２４，２５によって櫛部２１の頂面に踏板移動方向に沿った凹面２７を形成している。さらに、傾斜面２６を櫛板１４の基部２０の頂面に形成することにより、隣接する傾斜面２５及び傾斜床１３とで踏板移動方向に沿った凸面を形成して乗降床７の先端と櫛板１４間の傾斜の急変をなくしている。
【００１６】
上記構成において、踏板５から運搬車を乗降床側に移動させようとした場合、従来においては、図１（ｂ）に示すように、櫛部２１′表面が二点鎖線のように凸状をなしているので、その傾斜が大きい。このため、運搬車の前輪２８′が櫛部２１′に衝突した場合、傾斜が大きい分、踏板５のクリート５Ｃ頂部から高い位置Ｐ′で衝突するので、前輪２８′を乗り上げさせるためにはかなりの力と反力が生じる。しかし、本実施の形態によれば、傾斜面２４が緩い傾斜の平坦面であるので、運搬車の前輪２８が櫛部２１に衝突する位置Ｐは、踏板５のクリート５Ｃ頂部に接近した低位置となる。そのために、運搬車を小さな力で押すだけで、反力も少なく前輪２８の櫛板１４への乗り上げを行うことができる。
【００１７】
また、傾斜面２４が緩い傾斜の平坦面であることは、乗客に対しても、転倒事故の発生を抑制することができる。即ち、仮に、乗客が足を上げないまま乗降床７に到達した場合、乗客は惰性で櫛板先端の緩い傾斜面２４に乗り上げることができるので、乗り上げないまま転倒することはなくなる。一方、惰性でいつまでも櫛板１４上を滑っていては危険であるが、傾斜面２４の進行方向には、傾斜面２４よりも急傾斜の傾斜面２５が存在するので、それ必要以上の滑りは防止される。したがって、乗客の乗降床７への移動の際の櫛板１４へのつまずきはなくなり、櫛板１４へのつまずきによる転倒事故をなくすことができる。
【００１８】
尚、緩い傾斜面２４に連続させて急傾斜の傾斜面２５を形成する目的は、次の通りである。即ち、図１（ｂ）に示すように、本来なら傾斜面２４を二点鎖線で示すように基部２０側に延長した場合、櫛板取付け部１６の上方に対向する基部２０の板厚ｔ′が薄くなって櫛部２１に荷重が作用した場合の強度が確保できずに、折損する危険がある。そこで傾斜面２４の延長上に、前記傾斜面２５を設けることにより、基部２０の板厚ｔの低下を極力防止して強度の低下をなくすようにしたのである。加えて、櫛板取付け部１６の取付け面１５を傾斜角θ２で傾斜させ、かつ櫛板１４の基部２０の頂面を前記傾斜角θ２よりも緩傾斜の傾斜角 θ５で傾斜させているので、櫛板１４の基部２０は先端に行くにしたがい板厚ｔが肉厚となり、基部２０から歯部２１にかけての機械的強度を確保することができる。
【００１９】
さらに、前記傾斜面２５を設けないで櫛板１４の基部２０の板厚ｔを確保することもできる。その構成は、前記櫛歯２２の頂部先端から板厚ｔの基部２０端にかけて平坦な傾斜面２４を形成するものである。この構成は、前記傾斜面２５を設けない分、上記実施の形態に比べて、傾斜面２４の傾斜角度が急となる。しかし、その傾斜角度は、図１（ｂ）に二点鎖線で示す従来の櫛部２１′の凸曲表面に比べて、図面に示す傾斜角θ３に近いので、上記実施の形態による櫛板と同等の効果を奏することができる。
【００２０】
このほか、傾斜面２４，２５を隣接させることにより、乗降口近傍の照明光が異角度の斜面で分散するので、転倒事故が多発する乗降床と踏板の境界部の存在を乗客に認識させることができ、安全性の向上に寄与できる。
【００２１】
上記構成の櫛板１４は、複数の櫛歯２２の付け根部２３の先端に、股歯２９を形成している。この股歯２９は、前記傾斜面２４よりも急傾斜に形成され、特に、柔軟な靴底の引っ掛かりを防止するもので、櫛板１４の構成全体として安全上大きな効果を有するものである。
【００２２】
次に、上記構成の櫛板１４を乗降床７の先端に備えたエスカレーターによってモニタテストを行った結果を説明する。
【００２３】

〔実験結果〕
（１）転倒事故の発生率
上記各テスト条件における転倒事故の発生率を表１に示す。尚、表１中（）内の数値は、発生件数である。
【００２４】
【表１】

【００２５】
（２）櫛板への乗り上げ距離など
運転速度４０ｍ／min の踏板上に立ち、靴が櫛板に衝突した時の「櫛板への乗り上げ距離」と、「靴が衝突して乗り上げた後の静止するまでの時間」を測定した結果を表２に示す。
【００２６】
【表２】

【００２７】
〔評価〕
（１）転倒事故について
表１から分かるように、進行方向に対して前向きに乗った場合には、櫛板の傾斜角度に関係なく、乗客が櫛板の接近を目視できるので、転倒事故の発生はない。しかし、転倒事故は進行方向に対して後向きに乗った場合には、櫛板の傾斜角度が大きい従来品にのみ転倒事故の発生が見られた。
【００２８】
（２）櫛板への乗り上げ距離などについて
表２から分かるように、櫛板の傾斜角度に関係なく前向きに乗った場合には、いずれも櫛板に靴が乗り上げているが、乗り上げ距離を見ると、傾斜角度が小さい本発明品が長く、停止するまでの時間も本発明品が長い。しかし、後向きに乗った場合には、乗り上げ距離も停止するまでの時間も櫛板傾斜角度が小さい本発明品が長い。この結果は、本発明品は、櫛板への靴の衝突力が小さく、転倒を回避できることを意味する。
【００２９】
（３）結果のまとめ
上述の通り、本発明品が優れているのは、櫛板先端の緩傾斜面による靴先あるいは踵の誘導，案内作用に加えて、櫛歯間の股歯に設けた傾斜面により、櫛歯間に浸入した靴底の櫛歯外への誘導の相乗作用により達成されるものであることが、確認できた。
【００３０】
尚、上記テストは、成形性に優れているアルミニウム合金製の櫛板を用いて実施したが、合成樹脂製の櫛板も適している。さらに、櫛板の存在と乗降床との境界を鮮明にするために、周知のように、櫛板全体を注意色に着色してもよく、図１に示すように、着色溝３０を設けて表現するようにしてもよい。
【００３１】
上記実施の形態は、２種の異なる傾斜面を隣接して踏板進行方向に沿った凹面を形成したものであるが、二傾斜面に限らず、二傾斜面以上の多傾斜面としてもよく、また凹曲面によって凹面を形成してもよい。
【００３２】
さらに、乗客コンベアとしてエスカレーターを一例として説明したが、エスカレーターに限らず、傾斜区間や水平区間に設置される電動道路の乗降床にも適用でき、同等の効果を奏することができる。
【００３３】
【発明の効果】
以上説明したように本発明によれば、必要な強度を確保して運搬車や乗客の踏板から乗降床への移動を安全に行い得る櫛板を乗降床の先端に備えた乗客コンベアを得ることができる。
【図面の簡単な説明】
【図１】本発明による乗客コンベアの乗降床先端部の櫛板を示す縦断側面図で、図１（ａ）は寸法図を示し、図１（ｂ）は使用状態図である。
【図２】本発明による乗客コンベアの乗降床先端部を示す縦断側面図。
【図３】図１（ａ）のIII−III線に沿う縦断正面図。
【図４】エスカレーターの下部乗降床近傍を示す一部破断斜視図。
【図５】エスカレーターの設置状態を示す一部破断斜視図。
【符号の説明】
５…踏板、５Ｃ…クリート、６，７…乗降床、１４…櫛板、２０…基部、２１…櫛部、２２…櫛歯、２３…付け根部、２４，２５…傾斜面、２７…凹面、２９…股歯。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a passenger conveyor such as an escalator or an electric road, and more particularly to a passenger conveyor provided with a comb plate at a front end of a passenger floor.
[0002]
[Prior art]
In general, passenger conveyors such as escalators and electric roads are provided with a plurality of cleats parallel to the tread surface along the tread board moving direction, and a comb board provided with comb teeth that engage with these cleats in a non-contact state at the front end of the landing floor. Provided. By such non-contact meshing between the comb teeth and the cleats, it is possible to prevent the footwear and foreign matter that are about to be caught in the gap between the moving tread and the getting-on / off floor from being scooped up at the tip of the comb teeth.
[0003]
In this type of passenger conveyor, when trying to move a vehicle such as a wheelchair or shopping cart placed on a tread board to the landing floor, the wheel hits the comb teeth, so the vehicle cannot be lowered smoothly. In addition, there is a problem that when the passenger gets off the boarding / exiting floor, the toes hit the comb teeth and cause a fall accident.
[0004]
In order to eliminate these problems, a passenger conveyor has been proposed in which the entire inclined portion of the boarding / alighting floor is gently inclined (Japanese Patent Laid-Open No. 4-129991).
[0005]
[Problems to be solved by the invention]
The configuration in which the entire inclined part of the above-mentioned getting on / off floor is gently inclined makes the inclination from the horizontal part of the getting-on / off floor to the tip of the comb plate looser, and the tip of the comb plate also meshes with the cleats of the tread board at a gentle inclination compared to the conventional one Therefore, the impact of the wheel hitting the comb plate when moving the transport vehicle to the boarding / exiting floor is reduced, and the number of accidents where the toes of the passenger hit the comb plate is reduced.
[0006]
However, there are still shocks due to the bumps of the wheels of the transport vehicle against the comb plates and tripping of the passenger's comb plates, and further improvements are required.
[0007]
One of the objects of the present invention is to provide a passenger conveyor that is safe to move from a carriage or a passenger tread board to a passenger floor.
[0008]
Another object of the present invention is to provide a passenger conveyor equipped with a comb plate at the front end of the boarding / exiting floor that can secure the necessary strength and can safely move the carriage or passenger from the tread board to the boarding / exiting floor. It is in.
[0009]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a step board having a plurality of cleats that are connected and moved endlessly and parallel to the movement direction on the surface, and a boarding / alighting floor provided at both end portions on the forward path side of these treads, In a passenger conveyor provided with a comb plate having comb teeth that are attached to the front end of the landing floor and mesh with the cleat in a non-contact state, the top of the base of the comb plate fixed to the comb plate mounting portion of the landing floor The inclination angle of the inclined surface formed on the surface is smaller than the inclination angle of the flat inclined surface formed from the top end of the comb plate to the base end, and the top end of the comb plate is lower than the top of the cleat. It was made to become .
[0010]
According to the above configuration, since there is no convex portion at the tip of the comb plate that meshes with the tread plate cleat for the transport vehicle moving from the tread plate to the getting-on / off floor or the toes of the passenger, the transport vehicle can be used even with a relatively small force. It can ride on the tip, and once it rides, it can move directly to the boarding / exiting floor with its inertia. Similarly, it is easy to ride the passenger's toes on the comb plate, and tripping is reduced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an escalator shown in FIGS. The escalator 1 includes a frame 4 installed across the upper floor 2 and the lower floor 3, a plurality of treads 5 that are guided in the frame 4 and connected in an endless manner to circulate, and these treads 5, the upper and

lower landing floors

6 and 7 provided at both end portions on the outward path side, the balustrades 8A and 8B erected along both the outward path sides of the tread 5, and the peripheral edges of the balustrades 8A and 8B Endless moving handrails 9A and 9B that are guided and moved are provided.
[0012]
Since the upper and

lower landing floors

6 and 7 have the same configuration, the detailed description will be made by taking the lower landing floor 7 as an example, and will be simply described as the landing floor 7.
[0013]
As shown in FIG. 2, the boarding / exiting floor 7 is composed of a strength member 10 and a decorative plate 11 on the surface thereof, and a horizontal floor 12 installed on the same level as the upper floor 2 and the lower floor 3 and And a subsequent inclined floor 13. The inclined floor 13 is inclined at an inclination angle θ 1 of about 5 degrees with respect to the horizontal floor 12, and the tip thereof is close to the surface of the tread plate 5. A comb plate 14 is fixed to the tip of the inclined floor 13 that is close to the tread plate 5. As shown in FIGS. 1A and 1B, a comb plate mounting portion 16 is formed at the tip of the inclined floor 13 that fixes the comb plate 14. A mounting surface 15 that is inclined with respect to the horizontal floor 12 at an inclination angle θ2 is formed. A screw hole 17 is provided in the comb plate mounting portion 16 formed in this way, and a screw 18 penetrating the comb plate 14 is screwed into the screw hole 17, whereby the comb plate 14 is moved to the tip of the inclined floor 13. It is fixed to the part.
[0014]
The comb plate 14 includes a base portion 20 having a through hole 19 of the screw 18 and fixed to the comb plate mounting portion 16, and a comb portion 21. The comb portion 21 is composed of a plurality of comb teeth 22 that mesh with a plurality of cleats 5C described later in non-contact manner, and a root portion 23 thereof. The intervals between the comb teeth 22 are formed at the same pitch as the intervals between the cleats 5 </ b> C that are long on the surface of the opposite tread plate 5 in the tread plate movement direction and are formed in parallel in the tread plate width direction. The comb plate 14 has an inclined surface 24 inclined on the surface of the comb portion 21 at an inclination angle θ3 of 10 to 15 degrees with respect to the horizontal floor 12 of the getting-on / off

floor

7 and 15 to 20 degrees with respect to the horizontal floor 12. The inclined surface 25 is inclined at an inclination angle θ4 and extends to the base 20 side continuously to the inclined surface 24, and the inclined angle with respect to the horizontal floor 12 between the inclined surface 25 and the base 20 end. An inclined surface 26 having an inclination angle θ5 smaller than θ4 is formed.
[0015]
The comb plate 14 configured as described above has a length La extending from the tip end of the comb plate mounting portion 16 of the getting-on / off floor 7 out of the total length L, and the inclined surface 24 has a length Lb shorter than the protruding length La. Further, the inclined surface 25 is formed to have a length Lc, and the two

inclined surfaces

24, 25 form a concave surface 27 along the tread plate moving direction on the top surface of the comb portion 21. . Further, by forming the inclined surface 26 on the top surface of the base portion 20 of the comb plate 14, a convex surface along the tread board moving direction is formed by the adjacent inclined surface 25 and the inclined floor 13, and the tip of the boarding / exiting floor 7 and the comb are formed. The sudden change in the inclination between the plates 14 is eliminated.
[0016]
In the above configuration, when the transport vehicle is moved from the tread plate 5 to the boarding / exiting side, conventionally, as shown in FIG. 1B, the surface of the comb portion 21 ′ has a convex shape like a two-dot chain line. The inclination is large. For this reason, when the front wheel 28 'of the transport vehicle collides with the comb portion 21', it collides at a high position P 'from the top of the cleat 5C of the tread 5 because of the large inclination. Force and reaction force are generated. However, according to the present embodiment, since the inclined surface 24 is a gently inclined flat surface, the position P at which the front wheel 28 of the transport vehicle collides with the comb portion 21 is a low position close to the top of the cleat 5C of the tread plate 5. Become. Therefore, the front wheel 28 can be mounted on the comb plate 14 with little reaction force by simply pushing the transport vehicle with a small force.
[0017]
In addition, the fact that the inclined surface 24 is a flat surface with a gentle inclination can suppress the occurrence of a fall accident even for passengers. That is, if the passenger reaches the boarding / exiting floor 7 without raising his / her foot, the passenger can ride on the slanted inclined surface 24 at the tip of the comb plate due to inertia, so that the passenger will not fall over without getting on. On the other hand, although it is inertia and it is dangerous to slide on the comb plate 14 forever, there is an inclined surface 25 that is steeper than the inclined surface 24 in the traveling direction of the inclined surface 24. Is prevented. Therefore, the trip to the comb plate 14 when the passenger moves to the boarding / exiting floor 7 is eliminated, and a fall accident due to the trip to the comb plate 14 can be eliminated.
[0018]
The purpose of forming the steeply inclined surface 25 continuously with the gentle inclined surface 24 is as follows. That is, as shown in FIG. 1B, when the inclined surface 24 is originally extended to the base 20 side as indicated by a two-dot chain line, the thickness t ′ of the base 20 facing above the comb plate mounting portion 16 is increased. However, the strength when the load is applied to the comb portion 21 cannot be secured, and there is a risk of breakage. Therefore, by providing the inclined surface 25 on the extension of the inclined surface 24, a decrease in the plate thickness t of the base portion 20 is prevented as much as possible to eliminate a decrease in strength. In addition, since the mounting surface 15 of the comb plate mounting portion 16 is tilted at the tilt angle θ2, and the top surface of the base 20 of the comb plate 14 is tilted at a tilt angle θ5 that is gentler than the tilt angle θ2, The base portion 20 of the comb plate 14 becomes thicker as it goes to the tip, and the mechanical strength from the base portion 20 to the tooth portion 21 can be ensured.
[0019]
Further, the thickness t of the base portion 20 of the comb plate 14 can be secured without providing the inclined surface 25. The structure forms a flat inclined surface 24 from the top end of the comb teeth 22 to the base 20 end of the plate thickness t. In this configuration, since the inclined surface 25 is not provided, the inclination angle of the inclined surface 24 becomes steep compared to the above-described embodiment. However, since the inclination angle is closer to the inclination angle θ3 shown in the drawing as compared with the convex surface of the conventional comb portion 21 ′ shown by a two-dot chain line in FIG. 1B, it is equivalent to the comb plate according to the above embodiment. The effect of can be produced.
[0020]
In addition, by making the

inclined surfaces

24 and 25 adjacent to each other, the illumination light in the vicinity of the entrance / exit is dispersed on slopes with different angles, so that the passengers can recognize the presence of the boundary between the entrance / exit floor and the tread board where frequent accidents occur. Can contribute to the improvement of safety.
[0021]
The comb plate 14 configured as described above has crotch teeth 29 formed at the tips of the root portions 23 of the plurality of comb teeth 22. The crotch teeth 29 are formed so as to be steeper than the inclined surface 24. In particular, the crotch teeth 29 prevent a soft shoe sole from being caught, and the overall configuration of the comb plate 14 has a great safety effect.
[0022]
Next, a description will be given of a result of a monitor test performed by an escalator provided with the comb plate 14 having the above-described configuration at the tip of the getting-on / off floor 7.
[0023]

〔Experimental result〕
(1) Rate of falling accidents Table 1 shows the rate of falling accidents under the above test conditions. In addition, the numerical value in () in Table 1 is the number of occurrences.
[0024]
[Table 1]

[0025]
(2) Standing on a stepping board with a driving speed of 40 m / min, such as the riding distance on the comb board, the “riding distance on the comb board” when the shoe collides with the comb board, and “after the shoe collides Table 2 shows the results of measuring the “time to rest”.
[0026]
[Table 2]

[0027]
[Evaluation]
(1) As can be seen from Table 1, about the accident of falling, when riding forward, the passenger can see the approach of the comb plate regardless of the inclination angle of the comb plate. There is no. However, when the fall accident rides backward with respect to the traveling direction, the fall accident occurred only in the conventional product having a large comb plate inclination angle.
[0028]
(2) As can be seen from Table 2 about the riding distance to the comb plate, etc., when riding forward regardless of the inclination angle of the comb plate, all the shoes are riding on the comb plate, but see the riding distance And this invention product with a small inclination | tilt angle is long, and this invention product is also long time to stop. However, when riding backwards, the product of the present invention with a small comb plate inclination angle is long for both the riding distance and the time to stop. This result means that the product of the present invention has a small impact force of the shoe against the comb plate and can avoid a fall.
[0029]
(3) Summary of results As described above, the products of the present invention are superior in that they are provided on the crotch teeth between the comb teeth in addition to the guidance and guiding action of the shoe tip or the heel by the gently inclined surface of the comb plate tip. It was confirmed by the inclined surface that this is achieved by the synergistic effect of the induction of the shoe sole that has entered between the comb teeth to the outside of the comb teeth.
[0030]
The test was performed using an aluminum alloy comb plate having excellent formability, but a synthetic resin comb plate is also suitable. Further, in order to make the boundary between the presence of the comb plate and the boarding / exiting floor clear, as is well known, the entire comb plate may be colored with a caution color, and as shown in FIG. You may make it express.
[0031]
In the above embodiment, two different inclined surfaces are adjacent to each other to form a concave surface along the tread board traveling direction, but not limited to two inclined surfaces, it may be a multi-inclined surface having two or more inclined surfaces, The concave surface may be formed by a concave curved surface.
[0032]
Furthermore, although the escalator has been described as an example of the passenger conveyor, the present invention is not limited to the escalator, but can also be applied to a boarding / exiting floor of an electric road installed in an inclined section or a horizontal section, and an equivalent effect can be achieved.
[0033]
【The invention's effect】
As described above, according to the present invention, it is possible to obtain a passenger conveyor equipped with a comb plate at the front end of a boarding / exiting floor that can secure necessary strength and can safely move from a carrier vehicle or a passenger tread board to the boarding / exiting floor. Can do.
[Brief description of the drawings]
FIG. 1 is a longitudinal side view showing a comb plate at a front end of a passenger floor of a passenger conveyor according to the present invention, FIG. 1 (a) is a dimensional view, and FIG. 1 (b) is a use state diagram.
FIG. 2 is a longitudinal side view showing a front end portion of a passenger floor of a passenger conveyor according to the present invention.
FIG. 3 is a longitudinal front view taken along line III-III in FIG.
FIG. 4 is a partially broken perspective view showing the vicinity of a lower getting-on / off floor of an escalator.
FIG. 5 is a partially broken perspective view showing an installed state of an escalator.
[Explanation of symbols]
5 ... tread board, 5C ... cleat, 6, 7 ... getting on / off floor, 14 ... comb board, 20 ... base part, 21 ... comb part, 22 ... comb tooth, 23 ... root part, 24, 25 ... inclined surface, 27 ... concave surface, 29 ... hip teeth.

Claims

A plurality of endlessly connected treads that move and have a plurality of cleats parallel to the direction of movement on the surface, a boarding floor provided at both end portions on the forward side of these treads, and the cleat attached to the tip of this boarding floor In a passenger conveyor provided with a comb plate having a comb tooth meshing in a non-contact state, the inclination angle of the inclined surface formed on the top surface of the base of the comb plate fixed to the comb plate mounting portion of the boarding / alighting floor is , passenger conveyor, wherein the rather smaller than the inclination angle of the flat inclined surfaces formed toward the base end from the top tip of the comb plate, the top tips of the comb plate is positioned lower than the cleat top.