JP4235296B2

JP4235296B2 - Passenger conveyor

Info

Publication number: JP4235296B2
Application number: JP35466798A
Authority: JP
Inventors: 達也松本; 博文宇津宮; 真士工藤; 豊小川; 幸雄中平
Original assignee: Hitachi Ltd; Hitachi Building Systems Co Ltd; Nippon Fillestar Co Ltd
Current assignee: Hitachi Ltd; Hitachi Building Systems Co Ltd; Nippon Fillestar Co Ltd
Priority date: 1998-12-14
Filing date: 1998-12-14
Publication date: 2009-03-11
Anticipated expiration: 2018-12-14
Also published as: JP2000177965A

Description

【０００１】
【発明の属する技術分野】
本発明は、ターミナル部で踏段を反転させずに、その踏面を上向きに保った状態で循環移動させるようにした乗客コンベアに関する。
【０００２】
【従来の技術】
この種の乗客コンベアとして、従来、特開平１０−２５０９６８号公報に記載の技術がある。この従来技術は、主枠を構成するフレームすなわち支持体の高さ寸法を小さくするために、上階床乗降口、下階床乗降口付近のターミナル部で踏段を反転させないようにしたもので、これによりターミナル部における踏段の回転半径を小さく設定してある。すなわち、踏段の踏面を上向きに保った状態で、また、踏段の全体形状を変形させることなく、この踏段をガイドレールに沿って案内させ、循環移動させるように構成してある。
【０００３】
また、この従来技術は、支持体の高さ寸法を小さくするために、駆動輪を形成する外側のローラである前輪が案内され、この前輪の軌道を形成する前輪レールと、この前輪レールよりも内側に、すなわち踏段寄りに配置される後輪レールとが、支持体の側面方向から見て重なり合う状態を形成するように構成してある。
【０００４】
【発明が解決しようとする課題】
上述した従来技術において、例えば上昇運転の場合には、踏段が支持体内を移動する下側の移動から乗降客の利用が可能な上側の移動へと移行する際に、前軸が前輪レールよりも内側に位置する後輪レールを下から上に横切らざるを得ない事態を生じる。しかしながら上述した従来技術では、この点について、すなわち移動方向が変化するときの踏段の移行を円滑におこなわせる点については、配慮がなされていない。
【０００５】
本発明は、上述した従来技術における実情に鑑みてなされたもので、その目的は、踏段の全体形状を変形させず、この踏段の踏面を上向きに保ったままの形態で循環移動させるものにあって、踏段の移動方向が変化するときの踏段の移行を円滑におこなわせることのできる乗客コンベアを提供することにある。
【０００６】
【課題を解決するための手段】
この目的を達成するために本発明の請求項１に係る発明は、踏段チェーンに牽引される側に位置する駆動輪軸と、この駆動輪軸に装着される駆動輪と、この駆動輪が案内される駆動輪ガイドレールと、上記駆動輪の内側の軌道上に配置される従動輪と、この従動輪が装着される従動輪軸と、上記従動輪が案内される従動輪ガイドレールと、上記駆動輪及び上記従動輪の転動に伴って移動する踏段とを備え、上記踏段の全体形状を変形させず、この踏段の踏面を上向きに保ったままの形態で循環移動させる乗客コンベアにおいて、上記踏段の移動方向が逆転する付近に位置する上記従動輪ガイドレールに、上記駆動輪軸の軸部部分が挿通可能で常時開口を形成する切欠部を設けるとともに、上記従動輪が上記切欠部を通過する際に上記踏段をほぼ水平状態に支持する支持手段を設け、上記支持手段が、上記切欠部近傍の従動輪押えレール、及び駆動輪押えレールのいずれか一方の上に配置され、上記従動輪押えレール、及び駆動輪押えレールのいずれか一方のうちの該当するものの表面よりも高い表面を有する補助レールと、上記踏段に装着され、上記補助レールの表面上を転動可能な補助ローラとを含む構成にしてある。
【０００７】
このように構成した請求項１に係る発明では、踏段の移動方向が逆転する際に駆動輪の軸部部分が従動輪ガイドレールに形成した切欠部を挿通することにより当該駆動輪軸の移動を円滑におこなわせることができ、また、従動輪が上述の切欠部を通過しようとするときは、支持手段によって踏段がほぼ水平状態に保たれるので従動輪が切欠部から落下することがなく、これらにより駆動輪を駆動輪ガイドレールによって、従動輪を従動輪ガイドレールによってそれぞれ円滑に案内させることができ、したがって踏段の全体形状を変形させず、この踏段の踏面を上向きに保ったままの形態で循環移動させるものにあって、踏段の移動方向が変化するときの踏段の移行を円滑におこなわせることができる。また、このように構成した発明では、例えば上昇運転するエスカレータなどにあっては、下階床乗降口付近の従動輪ガイドレールに切欠部を設け、従動輪押えレール上に補助レールを設けると都合がよく、この場合には従動輪が切欠部を通過する際に、補助レール上に補助ローラが乗り上げることにより踏段がほぼ水平に支持され、従動輪が切欠部から落下することがなく、駆動輪を駆動輪ガイドレールによって、従動輪を従動輪ガイドレールによって良好に案内させることができ、これらにより踏段をほぼ水平状態に保ったまま循環移動させることができる。更に、例えば下降運転するエスカレータなどにあっては、上階床乗降口付近の従動輪ガイドレールに切欠部を設け、駆動輪押えレール上に補助レールを設けると都合がよく、この場合にも従動輪が切欠部を通過する際に、補助レール上に補助ローラが乗り上げることにより踏段がほぼ水平に支持され、従動輪が切欠部から落下することがない。
【０００８】
また、本発明の請求項２に係る発明は、請求項１に係る発明において、上記補助ローラを、上記駆動輪と上記従動輪の間に配置するとともに、上記駆動輪の軸心と上記従動輪の軸心とを結ぶ線よりも上方にその軸心が位置するように配置したことを特徴としている。
【０００９】
また、本発明の請求項３に係る発明は、請求項２に係る発明において、上記従動輪が、上記切欠部を越えて上記従動輪ガイドレール上に転動可能に位置した際に、上記補助ローラを上記補助レールから離脱させる空隙部分を設けたことを特徴としている。
【００１０】
また、本発明の請求項４に係る発明は、踏段チェーンに牽引される側に位置する駆動輪軸と、この駆動輪軸に装着される駆動輪と、この駆動輪が案内される駆動輪ガイドレールと、上記駆動輪の内側の軌道上に配置される従動輪と、この従動輪が装着される従動輪軸と、上記従動輪が案内される従動輪ガイドレールと、上記駆動輪及び上記従動輪の転動に伴って移動する踏段とを備え、上記踏段の全体形状を変形させず、この踏段の踏面を上向きに保ったままの形態で循環移動させる乗客コンベアにおいて、上記踏段の移動方向が逆転する付近に位置する上記従動輪ガイドレールに、上記駆動輪軸の軸部部分が挿通可能で常時開口を形成する切欠部を設けるとともに、上記従動輪が上記切欠部を通過する際に上記踏段をほぼ水平状態に支持する支持手段を設け、上記支持手段が、上記切欠部近傍の上記従動輪押えレール、及び駆動輪押えレールのいずれか一方の上に設けた補助ローラと、上記踏段に設けられ、上記補助ローラに当接可能な案内体とを含むことを特徴としている。
【００１１】
また、本発明の請求項５に係る発明は、踏段チェーンに牽引される側に位置する駆動輪軸と、この駆動輪軸に装着される駆動輪と、この駆動輪が案内される駆動輪ガイドレールと、上記駆動輪の内側の軌道上に配置される従動輪と、この従動輪が装着される従動輪軸と、上記従動輪が案内される従動輪ガイドレールと、上記駆動輪及び上記従動輪の転動に伴って移動する踏段とを備え、上記踏段の全体形状を変形させず、この踏段の踏面を上向きに保ったままの形態で循環移動させる乗客コンベアにおいて、上記踏段の移動方向が逆転する付近に位置する上記従動輪ガイドレールに、上記駆動輪軸の軸部部分が挿通可能で常時開口を形成する切欠部を設けるとともに、上記従動輪が上記切欠部を通過する際に上記踏段をほぼ水平状態に支持する支持手段を設け、上記支持手段が、上記切欠部近傍の上記従動輪押えレール、及び駆動輪押えレールのいずれか一方の上に配置され、上記従動輪押えレール、及び駆動輪押えレールのいずれか一方のうちの該当するものの表面よりも高い表面を有する補助レールと、上記踏段に設けられ、上記補助レールに摺接可能な案内部材とを含むことを特徴とする。
【００１２】
【発明の実施の形態】
以下、本発明の乗客コンベアの実施形態を図に基づいて説明する。図１〜図５は本発明の請求項１，２，４，５，９に係る発明に相応する乗客コンベアの一実施形態を示す図で、図１は本実施形態の外観構成を示す側面図、図２は図１に示す本実施形態の要部構成を示すとともに、踏段が下階床乗降口付近に位置し、後輪が切欠部の直前に至ったときの状態を示す側面図、図３は図１に示す本実施形態の要部構成を示すとともに、踏段が下階床乗降口付近に位置し、後輪が切欠部に至ったときの状態を示す側面図、図４は図３のＡ方向から見た要部平面図、図５は図１に示す本実施形態の要部構成を示すとともに、踏段が上階床乗降口付近に位置し、後輪が切欠部の直前に至ったときの状態を示す側面図である。
【００１３】
本実施形態の乗客コンベアは、例えば上昇運転が実施されるエスカレータであり、図１に示すように主枠を構成するフレームすなわち支持体１と、この支持体１内を移動する下側の移動から乗客の利用が可能な上側の移動へと循環移動する複数の踏段２と、これらの踏段２を牽引する踏段チェーン３とを備えている。支持体１の長手方向両端部の上部には下階床乗降口４及び上階床乗降口５を設けてある。これらの下階床乗降口４と上階床乗降口５との間に位置する支持体１には前述した踏段２の両側に沿って立設した欄干６と、この欄干６の周縁に案内され踏段２と同期して駆動される移動手摺７が配置されている。
【００１４】
図２〜５に示すように、踏段２の踏段枠８の下部上方位置には、踏段チェーン３に牽引される駆動輪軸、例えば前軸９を配置してあり、踏段枠８の下部下方位置には、従動輪軸、例えば後軸１１を配置してある。前軸９には駆動輪すなわち前輪１０を装着してあり、後軸１１には従動輪すなわち後輪１２を装着してある。また、支持体１内には前輪１０を案内する駆動輪ガイドレールすなわち前輪レール１４と、後輪１２を案内する従動輪ガイドレールすなわち後輪レール１５とを配置してある。前輪レール１４は踏段２の幅方向に対して後輪レール１５の外側に位置している。したがって、前述した前軸９が後輪レール１５を横切るように配置される長軸を形成し、後軸１１が前輪レール１４を横切ることのない短軸を形成する。また、上述の前輪レール１４、後輪レール１５は、図２に示すように、側面方向から見て重なり合うように配置してある。
【００１５】
そして特に本実施形態では、踏段２の移動方向が逆転する例えば下階床乗降口４付近に位置する後輪レール１５に、前軸９の軸部部分例えば図４に示す前軸９の軸受９ａが挿通可能な比較的大きな寸法に設定され、常時開口を形成する切欠部１８を設けてある。また、切欠部１８を越えた位置付近の従動輪押えレールすなわち後輪押えレール１６上に、この後輪押えレール１６の表面よりも高い表面を有する補助レール１７を設けてある。さらに、踏段枠８には、補助レール１７の表面上を転動可能な補助ローラ１３を設けてある。この補助ローラ１３は図３に示すように、前輪１０の軸心９ｂと後輪１２の軸心１１ａとを結ぶ線３０よりも上方にその軸心１３ａが位置するように配置してある。
【００１６】
上述した補助レール１７、補助ローラ１３、及び前輪１０は、後輪１２が切欠部１８を通過する際に、踏段２をほぼ水平状態に支持する支持手段を構成している。
【００１７】
なお、図５に示すように、上階床乗降口５付近に位置する後輪レール１５にも、前軸９の軸受９ａが挿通可能な寸法に設定され、常時開口を形成する切欠部１９を設けてある。この上階床乗降口５側にあっては、上述した補助ローラ１３、補助レール１７の組み合わせは設けてない。
【００１８】
このように構成した本実施形態では、踏段チェーン３に牽引された踏段２（以下、この特定の１つの踏段２の動作について説明する）が、図２に示すように、下階床乗降口４の付近に至り、その移動方向が逆転しようとするとき、すなわち支持体１内に収納される下側位置から乗客の利用が可能な上側位置に上昇しようとするとき、前軸９に装着した軸受９ａが後輪レール１５に形成した切欠部１８を挿通する。これにより軸受９ａを含む前軸９の移動を円滑におこなわせることができる。また、引き続いておこなわれる踏段２の移動に伴って、後輪１２が切欠部１８を通過しようとするときは、補助ローラ１３が補助レール１７に乗り上げ、この補助レール１７と前輪１０とで踏段２が支えられる。これにより当該踏段２がほぼ水平状態に保たれる。したがって、後輪１２を切欠部１８から落下させることなく、この切欠部１８の位置を越えて後輪レール１５上に再び乗せることができる。
【００１９】
このようにして、後輪１２が切欠部１８を越えて後輪レール１５上を転動する状態に至ると、補助ローラ１３は、補助レール１７から離れ、後輪押えレール１６の表面に接触しない状態に保たれる。引き続いておこなわれる踏段２の上昇方向の移動の間は、前輪１０が前輪レール１４に案内され、後輪１２が後輪レール１５に案内されることにより、踏段２は円滑に移動する。
【００２０】
そして、踏段２が図５に示すように、上階床乗降口５の付近に至り、その移動方向が再び逆転しようとするとき、すなわち、乗客の利用が可能な上側位置から踏段２が支持体１内に下降しようとするとき、後輪１２は自重により落下することにより後輪レール１５に形成した切欠部１９を通過し、後輪レール１５に円滑に案内され、また前軸９に装着した軸受９ａは切欠部１９を挿通し、前輪１０は前輪レール１４に円滑に案内される。
【００２１】
このような上階床乗降口５の付近における踏段２の移動に引き続いておこなわれる踏段２の下降方向の移動の間は、前述の踏段２の上昇方向の移動の場合と同様に、前輪１０が前輪レール１４に案内され、後輪１２が後輪レール１５に案内されることにより、踏段２は円滑に下降方向に移動する。そして再び前述したように、踏段２が下階床乗降口４の付近に至り、その移動方向が逆転する。以下、当該エスカレータの上昇運転がおこなわれている間中、同様の動作が継続して実施される。
【００２２】
以上のように、本実施形態によれば、特に踏段２が下階床乗降口４の付近で移動方向が逆転するとき、踏段２を補助ローラ１３と補助レール１７を介してほぼ水平状態に保った形態で移動させることができ、また、下階床乗降口４の付近では前軸９の軸受９ａが切欠部１８を挿通することにより、上階床乗降口５の付近では前軸９の軸受９ａが切欠部１９を挿通することにより、この軸受９ａを含む前軸９を円滑に移動させることができる。すなわち、踏段２の全体形状を変形させず、この踏段２を上向きに保ったままの形態で循環移動させることができるとともに、踏段２の移動方向が変化するときの当該踏段２の移行を円滑におこなわせることができる。これにより支持体１の高さ寸法を小さくしたいという要望を実現させることができる。また、本実施形態は、切欠部１８，１９と、切欠部１８付近で踏段２をほぼ水平に支持する補助ローラ１３と補助レール１７を含む支持手段とを設けるだけの簡単な構成であるので、製作が容易で実用性に富む。
【００２３】
図６〜図８は本発明の請求項１，３，４，５，９に係る発明に相応する乗客コンベアの別の実施形態を示す図で、図６は当該別の実施形態の要部構成を示すとともに、踏段が下階床乗降口付近に位置し、後輪が切欠部の直前に至ったときの状態を示す側面図、図７は図６のＢ方向から見た要部平面図、図８は図６に示す本発明の別の実施形態の要部構成を示すとともに、踏段が上階床乗降口付近に位置したときの状態を示す側面図である。
【００２４】
これらの図６〜図８に示す別の実施形態は、例えば下降運転が実施されるエスカレータであり、後軸１１が駆動輪軸、後軸１２が駆動輪、後輪レール１５が後輪１２を案内する駆動輪ガイドレール、前軸９が従動輪軸、前輪１０が従動輪、前輪レール１４が前輪１０を案内する従動輪ガイドレールになっている。すなわち、前述した図１〜図５に示す実施形態と逆の構成になっている。したがって、これらの図６〜図８に示す別の実施形態では、後軸１１が前輪レール１４を横切るように配置される長軸を形成し、前軸９が後輪レール１５を横切ることのない短軸を形成する。なお、前輪レール１４と後輪レール１５は、側面方向から見て重なり合うように配置してある。
【００２５】
この別の実施形態では、図８に示すように、踏段２の移動方向が逆転する上階床乗降口５付近に位置する前輪レール１４に、後軸１１が挿通可能な寸法に設定され、常時開口を形成する切欠部２１を設けてある。また、切欠部２１を越えた位置付近の駆動輪押えレールすなわち後輪押えレール２２上に、この後輪押えレール２２の表面よりも高い表面を有する補助レール２３を設けてある。さらに、踏段枠８に装着され、補助レール２３の表面上を転動可能な補助ローラ１３を設けてある。
【００２６】
上述した補助レール２３、補助ローラ１３及び後輪１２は、前輪１０が切欠部２１を通過する際に踏段２をほぼ水平状態に支持する支持手段を構成している。
【００２７】
なお、図６に示すように、下階床乗降口４付近に位置する前輪レール１４にも、後軸１１が挿通可能な寸法に設定され、常時開口を形成する切欠部２０を設けてある。この下階床乗降口４側にあっては、上述した補助ローラ１３、補助レール２３の組み合わせは設けてない。
【００２８】
このように構成した別の実施形態では、踏段チェーン３に牽引された踏段２が、上階床乗降口５の付近に至り、その移動方向が逆転しようとするとき、すなわち支持体１内に収納される下側位置から乗客の利用が可能な上側位置に上昇しようとするとき、図８に示す補助ローラ１３が補助レール２３に乗り上げ、この補助ローラ１３と後輪１２とが踏段２を支えることにより当該踏段がほぼ水平状態に保たれる。したがって、前輪１０を切欠部２１から落下させることなく、この切欠部２１の位置を越えて前輪レール１４上に再び乗せることができる。この状態から引き続き、後軸１１が切欠部２１を挿通することにより、この後軸１１の移動を円滑におこなわせることができる。図８は、このような動作を終えて、踏段２が上昇した状態を示している。
【００２９】
なお上述のように、前輪１０が切欠部２１を越えて前輪レール１４上を転動する状態に至ると、補助ローラ１３は、補助レール２３から離れ、後輪押えレール２２の表面に接触しない状態に保たれる。引き続いておこなわれる踏段２の下降方向の移動の間は、前輪１０が前輪レール１４に案内され、後輪１２が後輪レール１５に案内されることにより、踏段２は円滑に移動する。
【００３０】
そして、踏段２が下降方向に移動してっ図６に示すように、下階床乗降口４付近に至り、その移動方向が再び逆転しようとするとき、すなわち乗客の利用が可能な上側位置から支持体１内に下降しようとするとき、後軸１１は図６に示す切欠部２０を挿通し、後輪１２は後輪レール１５に円滑に案内され、また、前輪１０は自重により落下することにより前輪レール１５に形成した切欠部１９を通過し、前輪レール１４に円滑に案内される。
【００３１】
このような下階床乗降口４の付近における踏段２の移動に引き続いておこなわれる踏段２の上昇方向の移動の間は、前述の踏段２の下降運転の場合と同様に、前輪１０が前輪レール１４に案内され、後輪１２が後輪レール１５に案内されることにより、踏段２は円滑に上昇方向に移動する。そして再び前述したように踏段２が上階床乗降口５の付近に至り、その移動方向が逆転する。以下、当該エスカレータの下降運転がおこなわれている間中、同様の動作が継続して実施される。
【００３２】
この別の実施形態にあっても、上述した図１〜図５に示す実施形態におけるのと同様に、特に踏段２が上階床乗降口５の付近で移動方向が逆転するとき、踏段２を図８に示す補助ローラ１３と補助レール２３を介してほぼ水平に保った形態で移動させることができ、また、上階床乗降口５の付近では後軸１１が切欠部２１を挿通することにより、当該後軸１１を円滑に移動させることができる。すなわち、踏段２の全体形状を変形させずに、この踏段２を上向きに保ったままの形態で循環移動させることができるとともに、踏段２の移動方向を変化させるときの当該踏段２の移行を円滑におこなわせることができる。これにより、支持体１の高さ寸法を小さくしたいという要望を実現させることができる。また、この別の実施形態も、切欠部２０，２１と、切欠部２１付近で踏段２をほぼ水平に支持する補助ローラ１３と補助レール２３を含む支持手段とを設けるだけの簡単な構成であるので、製作が容易で実用性に富む。
【００３３】
図９は本発明に備えられる補助レールの配設構造の別の例を示す要部側面図である。この別の例は図１〜図５に示した実施形態において、従動輪である後輪１２が、切欠部１８を越えて従動輪ガイドレールである後輪レール１５上に転動可能に位置した際に、補助ローラ１３を補助レール１７から離脱させる空隙部分２４を形成させてある。つまり、補助レール１７から先の後輪押えレール１６部分を切断除去した構成にしてある。このように構成したものでは、材料費を節約することができる他、全体の重量を軽減させることに貢献する。この図９に示す補助レール１７の配設構造の別の例は、本発明の請求項６に係る発明に相応する。
【００３４】
図１０は本発明に備えられる支持手段の別の例を示す要部側面図である。この別の例は、図１〜図５に示した実施形態における補助ローラと補助レールの配置を逆にしたもので、同図１０に示すように、切欠部１８の近傍の従動輪押えレールである後輪押えレールの上の位置に補助ローラ２５を固定し、踏段２の側に、補助ローラ２５に当接可能な案内体２６を設けてある。このように構成したものも従動輪である後輪１２が切欠部１８に至ったときに、補助ローラ２５上に案内体２６が乗ることにより、踏段２を支障なく水平に支持させることができる。
【００３５】
なお、図６〜図８に示すような別の実施形態、すなわち下降運転用のエスカレータの場合には、図８に示す駆動輪押えレールである後輪押えレール２２上に、補助レール２３の代りに図１０に示したと同様の補助ローラ２５を設け、踏段２に装着される補助ローラ１３の代りに案内体２６を設ける構成とすることもできる。
【００３６】
上述の各構成は、本発明の請求項７に係る発明に相応する。
【００３７】
また特に図示はしないが、押えレール上に補助レールを設け、踏段２に、当該補助レールに摺接可能な案内部材を設ける構成にしてもよい。このように構成しても、補助レール上に案内部材が乗ることにより、踏段２を支障なく支持させることができる。
【００３８】
さらにまた、図示しないが、従動輪が切欠部を通過する際に踏段をほぼ水平に支持する支持手段として、上述のような機械構造より成るものに代えて、圧縮空気の噴射により踏段２をほぼ水平に支持する支持手段とか、磁石の反発力を利用して踏段２をほぼ水平に支持する支持手段とかを設ける構成としてもよい。
【００３９】
図１１は、本発明に備えられる切欠部の別の例を示す要部側面図、図１２は図１１のＣ方向から見た要部平面図である。
【００４０】
図１〜図５に示した実施形態にあっては、駆動軸である前軸９の軸受９ａを踏段２の端部から突出させるように形成したことに伴い、切欠部１８の開口寸法を軸受９ａの挿通が可能な比較的大きな寸法に形成したが、同図１１，１２に示すように、前軸９の軸受９ａを踏段２の端部から突出させないように設け、切欠部２７の開口寸法を前軸９のみの挿通が可能な比較的小さな寸法に構成するようにしてもよい。この構成は、本発明の請求項１０に係る発明に相応する。
【００４１】
なお、上記各実施形態では、乗客コンベアの一例としてエスカレータを挙げたが、本発明はこれに限られず、踏段２をほぼ全移動領域にわたって水平移動させるオートライン等に採用してもよい。
【００４２】
【発明の効果】
以上のように構成したことにより、本発明の各請求項に係る発明によれば、踏段の全体形状を変形させず、この踏段の踏面を上向きに保ったままの形態で循環移動させるものにあって、踏段の移動方向が変化するときの踏段の移行を円滑におこなわせることができ、これにより支持体の高さ寸法を小さくしたいという要望を実現でき、また、切欠部と、この切欠部付近で踏段をほぼ水平に支持する支持手段を設けるだけの簡単な構成であるので、製作が容易であり、実用性に富む効果がある。
【図面の簡単な説明】
【図１】本発明の乗客コンベアの一実施形態の外観構成を示す側面図である。
【図２】図１に示す本発明の一実施形態の要部構成を示すとともに、踏段が下階床乗降口付近に位置し、後輪が切欠部の直前に至ったときの状態を示す側面図である。
【図３】図１に示す本発明の一実施形態の要部構成を示すとともに、踏段が下階床乗降口付近に位置し、後輪が切欠部に至ったときの状態を示す側面図である。
【図４】図３のＡ方向から見た要部平面図である。
【図５】図１に示す本発明の一実施形態の要部構成を示すとともに、踏段が上階床乗降口付近に位置し、後輪が切欠部の直前に至ったときの状態を示す側面図である。
【図６】本発明の別の実施形態の要部構成を示すとともに、踏段が下階床乗降口付近に位置し、後輪が切欠部の直前に至ったときの状態を示す側面図である。
【図７】図６のＢ方向から見た要部平面図である。
【図８】図６に示す本発明の別の実施形態の要部構成を示すとともに、踏段が上階床乗降口付近に位置したときの状態を示す側面図である。
【図９】本発明に備えられる補助レールの配設構造の別の例を示す要部側面図である。
【図１０】本発明に備えられる支持手段の別の例を示す要部側面図である。
【図１１】本発明に備えられる切欠部の別の例を示す要部側面図である。
【図１２】図１１のＣ方向から見た要部平面図である。
【符号の説明】
１支持体
２踏段
３踏段チェーン
４下階床乗降口
５上階床乗降口
６欄干
７移動手摺
８踏段枠
９前軸（駆動輪軸）〔従動輪軸〕
９ａ軸受
９ｂ軸心
１０前輪（駆動輪）〔従動輪〕
１１後軸（従動輪軸）〔駆動輪軸〕
１１ａ軸心
１２後輪（従動輪）〔駆動輪〕
１３補助ローラ（支持手段）
１３ａ軸心
１４前輪レール（駆動輪ガイドレール）〔従動輪ガイドレール〕
１５後輪レール（従動輪ガイドレール）〔駆動輪ガイドレール〕
１６後輪押えレール（従動輪押えレール）
１７補助レール（支持手段）
１８切欠部
１９切欠部
２０切欠部
２１切欠部
２２後輪押えレール（従動輪押えレール）
２３補助レール（支持手段）
２４空隙部分
２５補助ローラ（支持手段）
２６案内体（支持手段）
２７切欠部
３０線[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a passenger conveyor that is circulated and moved while keeping its tread face upward without reversing the steps at a terminal portion.
[0002]
[Prior art]
  Conventionally, as this type of passenger conveyor, there is a technique described in JP-A-10-250968. In this conventional technology, in order to reduce the height dimension of the frame constituting the main frame, i.e., the support body, the upper floor floor entrance / exit and the terminal portion near the lower floor floor entrance / exit are not reversed. Thereby, the radius of rotation of the step in the terminal portion is set small. That is, the step is guided along the guide rail and circulated while the step surface of the step is kept upward and without changing the overall shape of the step.
[0003]
  Further, in this prior art, in order to reduce the height dimension of the support, a front wheel that is an outer roller that forms a driving wheel is guided, and a front wheel rail that forms a track of the front wheel, and a front wheel rail, The rear wheel rails arranged inside, that is, closer to the steps are configured to overlap with each other when viewed from the side of the support.
[0004]
[Problems to be solved by the invention]
  In the above-described conventional technology, for example, in the case of ascending operation, when the step moves from the lower side movement in the support body to the upper side movement that can be used by passengers, the front shaft is more than the front wheel rail. There arises a situation in which the rear wheel rail located inside must be crossed from the bottom to the top. However, in the above-described prior art, no consideration is given to this point, that is, the point that the transition of the steps when the moving direction changes can be performed smoothly.
[0005]
  The present invention has been made in view of the actual situation in the prior art described above, and its purpose is to circulate and move the step in a form that keeps the step surface of the step upward without changing the overall shape of the step. Thus, it is an object of the present invention to provide a passenger conveyor that can smoothly shift a step when the moving direction of the step changes.
[0006]
[Means for Solving the Problems]
  In order to achieve this object, the invention according to claim 1 of the present invention is directed to a drive wheel shaft positioned on the side pulled by the step chain, a drive wheel mounted on the drive wheel shaft, and the drive wheel guided. A driving wheel guide rail, a driven wheel disposed on a track inside the driving wheel, a driven wheel shaft on which the driven wheel is mounted, a driven wheel guide rail on which the driven wheel is guided, the driving wheel, and A step of moving the step in a passenger conveyor that includes a step that moves in accordance with the rolling of the driven wheel, and that circulates and moves while keeping the step surface of the step facing upward without changing the overall shape of the step. The driven wheel guide rail located in the vicinity of the reverse direction is provided with a notch portion through which the shaft portion of the drive wheel shaft can be inserted so as to always form an opening, and when the driven wheel passes through the notch portion, Step Provided support means for supporting a horizontal stateThe support means is disposed on one of the driven wheel press rail and the drive wheel press rail in the vicinity of the notch, and corresponds to one of the driven wheel press rail and the drive wheel press rail. An auxiliary rail having a surface higher than the surface of the object, and an auxiliary roller mounted on the step and capable of rolling on the surface of the auxiliary rail.It is configured.
[0007]
  In the invention according to claim 1 configured as described above, when the moving direction of the step reverses, the shaft portion of the drive wheel passes through the notch formed in the driven wheel guide rail, thereby smoothly moving the drive wheel shaft. In addition, when the driven wheel tries to pass through the above-described notch, the step is kept almost horizontal by the support means, so that the driven wheel does not fall from the notch. The driving wheel can be smoothly guided by the driving wheel guide rail and the driven wheel can be smoothly guided by the driven wheel guide rail. Therefore, the overall shape of the step is not deformed, and the step surface of the step is kept upward. In the case of circulating movement, it is possible to smoothly shift the step when the moving direction of the step changes.Further, in the invention configured as described above, for example, in an escalator that performs ascending operation, it is convenient to provide a notch in the driven wheel guide rail near the lower floor floor entrance and exit, and provide an auxiliary rail on the driven wheel presser rail. In this case, when the driven wheel passes through the notch, the auxiliary roller rides on the auxiliary rail so that the step is supported almost horizontally, and the driven wheel does not fall from the notch. With the drive wheel guide rail, the driven wheel can be satisfactorily guided by the driven wheel guide rail, and the step can be circulated while keeping the step substantially horizontal. Furthermore, for example, in an escalator that operates downward, it is convenient to provide a notch in the driven wheel guide rail near the upper floor entrance and exit, and an auxiliary rail on the drive wheel presser rail. When the driving wheel passes through the notch, the auxiliary roller rides on the auxiliary rail to support the step almost horizontally, and the driven wheel does not fall from the notch..
[0008]
  The invention according to claim 2 of the present invention is the invention according to claim 1,The auxiliary roller is disposed between the driving wheel and the driven wheel, and is disposed so that the shaft center is located above a line connecting the shaft center of the driving wheel and the shaft center of the driven wheel.It is characterized by that.
[0009]
  Further, the invention according to claim 3 of the present invention is as follows.2In the invention according toWhen the driven wheel is positioned to be able to roll on the driven wheel guide rail beyond the notch, a gap portion is provided for separating the auxiliary roller from the auxiliary rail.It is characterized by that.
[0010]
  The invention according to claim 4 of the present invention isA drive wheel shaft positioned on the side pulled by the step chain, a drive wheel mounted on the drive wheel shaft, a drive wheel guide rail for guiding the drive wheel, and an inner track of the drive wheel. A driven wheel, a driven wheel shaft on which the driven wheel is mounted, a driven wheel guide rail on which the driven wheel is guided, and a step that moves as the driving wheel and the driven wheel roll. In the passenger conveyor that circulates and moves in a form in which the step surface of the step is kept upward without deforming the overall shape of the step, the driven wheel guide rail is located near the reverse of the moving direction of the step. A notch portion is provided that allows the shaft portion to be inserted and always forms an opening, and support means for supporting the step in a substantially horizontal state when the driven wheel passes through the notch portion is provided. Up Notch near the driven Waosae rail, and an auxiliary roller provided either on the one of the drive wheels presser rail, provided in the footstep, and can abut the guide body to the auxiliary rollerIt is characterized by including.
[0011]
    The invention according to claim 5 of the present invention isA drive wheel shaft positioned on the side pulled by the step chain, a drive wheel mounted on the drive wheel shaft, a drive wheel guide rail for guiding the drive wheel, and an inner track of the drive wheel. A driven wheel, a driven wheel shaft on which the driven wheel is mounted, a driven wheel guide rail on which the driven wheel is guided, and a step that moves as the driving wheel and the driven wheel roll. In the passenger conveyor that circulates and moves in a form in which the step surface of the step is kept upward without deforming the overall shape of the step, the driven wheel guide rail is located near the reverse of the moving direction of the step. A notch portion is provided that allows the shaft portion to be inserted and always forms an opening, and support means for supporting the step in a substantially horizontal state when the driven wheel passes through the notch portion is provided. Up It is arranged on one of the driven wheel press rail and the drive wheel press rail in the vicinity of the notch, and is higher than the surface of the corresponding one of the driven wheel press rail and the drive wheel press rail. It includes an auxiliary rail having a surface and a guide member provided on the step and capable of sliding on the auxiliary rail.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a passenger conveyor of the present invention will be described based on the drawings. 1 to 5 are views showing an embodiment of a passenger conveyor corresponding to the inventions according to claims 1, 2, 4, 5 and 9 of the present invention, and FIG. 1 is a side view showing an external configuration of the present embodiment. FIG. 2 is a side view showing the configuration of the main part of the present embodiment shown in FIG. 1 and showing the state when the step is located near the lower floor floor entrance and exit and the rear wheel reaches just before the notch. 3 is a side view showing the state of the main embodiment of the present embodiment shown in FIG. 1, the state where the steps are located near the lower floor floor entrance and exit, and the rear wheel reaches the notch, and FIG. FIG. 5 shows the configuration of the main part of the present embodiment shown in FIG. 1, and the step is located near the upper floor entrance and exit, and the rear wheel reaches just before the notch. FIG.
[0013]
  The passenger conveyor of the present embodiment is an escalator in which, for example, an ascending operation is performed. As shown in FIG. 1, the frame constituting the main frame, that is, the support 1, and the lower movement that moves in the support 1. A plurality of steps 2 that circulate to the upper side movement that can be used by passengers, and a step chain 3 that pulls these steps 2 are provided. A lower floor entrance / exit 4 and an upper floor entrance 5 are provided at upper portions of both ends in the longitudinal direction of the support 1. The support 1 positioned between the lower floor entrance 4 and the upper floor entrance 5 is guided by the rail 6 standing along the both sides of the above-described step 2 and the periphery of the rail 6. A moving handrail 7 that is driven in synchronization with the step 2 is disposed.
[0014]
  As shown in FIGS. 2 to 5, a drive wheel shaft to be pulled by the step chain 3, for example, a front shaft 9 is arranged at a lower upper position of the step frame 8 of the step 2. Is arranged with a driven wheel shaft, for example, a rear shaft 11. A driving wheel or front wheel 10 is attached to the front shaft 9, and a driven wheel or rear wheel 12 is attached to the rear shaft 11. Further, a driving wheel guide rail that guides the front wheel 10, that is, a front wheel rail 14, and a driven wheel guide rail that guides the rear wheel 12, that is, a rear wheel rail 15, are disposed in the support 1. The front wheel rail 14 is located outside the rear wheel rail 15 with respect to the width direction of the step 2. Therefore, the long axis | shaft arrange | positioned so that the front axis | shaft 9 mentioned above may cross the rear-wheel rail 15 is formed, and the short axis which the rear axis | shaft 11 does not cross the front-wheel rail 14 is formed. Further, as shown in FIG. 2, the front wheel rail 14 and the rear wheel rail 15 are arranged so as to overlap each other when viewed from the side.
[0015]
  Particularly in this embodiment, the rear wheel rail 15 located near the lower floor entrance / exit 4 where the moving direction of the step 2 is reversed is connected to the shaft portion of the front shaft 9, for example, the bearing 9a of the front shaft 9 shown in FIG. Is set to a comparatively large dimension that can be inserted, and a notch 18 that always forms an opening is provided. An auxiliary rail 17 having a surface higher than the surface of the rear wheel presser rail 16 is provided on the driven wheel presser rail, that is, the rear wheel presser rail 16 near the position beyond the notch 18. Further, the step frame 8 is provided with an auxiliary roller 13 that can roll on the surface of the auxiliary rail 17. As shown in FIG. 3, the auxiliary roller 13 is arranged such that the axis 13a is positioned above a line 30 connecting the axis 9b of the front wheel 10 and the axis 11a of the rear wheel 12.
[0016]
  The auxiliary rail 17, the auxiliary roller 13, and the front wheel 10 described above constitute support means for supporting the step 2 in a substantially horizontal state when the rear wheel 12 passes through the notch 18.
[0017]
  As shown in FIG. 5, the rear wheel rail 15 located in the vicinity of the upper floor entrance / exit 5 is also set to a dimension that allows the bearing 9a of the front shaft 9 to be inserted, and has a notch 19 that always forms an opening. It is provided. On the upper floor entrance / exit 5 side, the combination of the auxiliary roller 13 and the auxiliary rail 17 described above is not provided.
[0018]
  In the present embodiment configured as described above, a step 2 pulled by the step chain 3 (hereinafter, the operation of this one specific step 2 will be described), as shown in FIG. When the movement direction is going to be reversed, i.e., when it is going to rise from the lower position stored in the support 1 to the upper position where passengers can be used, the bearing mounted on the front shaft 9 9 a passes through the notch 18 formed in the rear wheel rail 15. Thereby, the front shaft 9 including the bearing 9a can be moved smoothly. In addition, when the rear wheel 12 is about to pass through the notch 18 with the subsequent movement of the step 2, the auxiliary roller 13 rides on the auxiliary rail 17. Is supported. As a result, the step 2 is kept substantially horizontal. Therefore, the rear wheel 12 can be put on the rear wheel rail 15 again beyond the position of the notch 18 without dropping from the notch 18.
[0019]
  Thus, when the rear wheel 12 rolls on the rear wheel rail 15 beyond the notch 18, the auxiliary roller 13 is separated from the auxiliary rail 17 and does not contact the surface of the rear wheel presser rail 16. Kept in a state. During the subsequent movement of the step 2 in the upward direction, the front wheel 10 is guided to the front wheel rail 14 and the rear wheel 12 is guided to the rear wheel rail 15, so that the step 2 moves smoothly.
[0020]
  Then, when the step 2 reaches the vicinity of the upper floor entrance / exit 5 as shown in FIG. 5 and the moving direction is going to reverse again, that is, the step 2 is supported from the upper position where passengers can use it. When trying to descend into 1, the rear wheel 12 falls by its own weight, passes through the notch 19 formed in the rear wheel rail 15, is smoothly guided to the rear wheel rail 15, and is mounted on the front shaft 9. The bearing 9 a is inserted through the notch 19, and the front wheel 10 is smoothly guided to the front wheel rail 14.
[0021]
  During the movement of the step 2 in the descending direction following the movement of the step 2 in the vicinity of the upper floor entrance / exit 5, the front wheel 10 is moved as in the case of the movement of the step 2 in the upward direction. By being guided by the front wheel rail 14 and the rear wheel 12 being guided by the rear wheel rail 15, the step 2 smoothly moves in the downward direction. Then, as described above again, the step 2 reaches the vicinity of the lower floor entrance / exit 4 and its moving direction is reversed. Hereinafter, the same operation is continuously performed while the escalator is being lifted.
[0022]
  As described above, according to this embodiment, particularly when the step 2 is moved in the vicinity of the lower floor entrance / exit 4 and the direction of movement is reversed, the step 2 is maintained in a substantially horizontal state via the auxiliary roller 13 and the auxiliary rail 17. The bearing 9a of the front shaft 9 passes through the notch 18 in the vicinity of the lower floor entrance / exit 4 and the bearing of the front shaft 9 in the vicinity of the upper floor entrance 5 The front shaft 9 including the bearing 9a can be smoothly moved by the 9a being inserted through the notch 19. That is, the overall shape of the step 2 can be circulated and moved while keeping the step 2 upward, and the transition of the step 2 when the direction of movement of the step 2 changes smoothly You can do it. Thereby, the desire to make the height dimension of the support body 1 small can be realized. In addition, the present embodiment has a simple configuration in which only the notches 18 and 19 and the supporting means including the auxiliary roller 13 and the auxiliary rail 17 that support the step 2 substantially horizontally in the vicinity of the notch 18 are provided. Easy to manufacture and practical.
[0023]
  6 to 8 are views showing another embodiment of a passenger conveyor corresponding to the inventions according to claims 1, 3, 4, 5 and 9 of the present invention, and FIG. 6 is a configuration of a main part of the other embodiment. A side view showing a state when the step is located near the lower floor floor entrance and exit, and the rear wheel reaches just before the notch, FIG. 7 is a plan view of the main part seen from the direction B of FIG. FIG. 8 is a side view showing a configuration of a main part of another embodiment of the present invention shown in FIG. 6 and a state when the step is located near the upper floor entrance / exit.
[0024]
  Another embodiment shown in FIGS. 6 to 8 is an escalator in which, for example, a descent operation is performed, the rear shaft 11 is a driving wheel shaft, the rear shaft 12 is a driving wheel, and the rear wheel rail 15 guides the rear wheel 12. The front wheel 9 is a driven wheel shaft, the front wheel 10 is a driven wheel, and the front wheel rail 14 is a driven wheel guide rail that guides the front wheel 10. That is, the configuration is the reverse of the embodiment shown in FIGS. Therefore, in another embodiment shown in FIGS. 6 to 8, a long axis is formed so that the rear shaft 11 crosses the front wheel rail 14, and the front shaft 9 does not cross the rear wheel rail 15. Form a short axis. The front wheel rail 14 and the rear wheel rail 15 are arranged so as to overlap each other when viewed from the side.
[0025]
  In this other embodiment, as shown in FIG. 8, the dimension is set such that the rear axle 11 can be inserted into the front wheel rail 14 located near the upper floor entrance / exit 5 where the moving direction of the step 2 is reversed. A notch 21 for forming an opening is provided. An auxiliary rail 23 having a surface higher than the surface of the rear wheel presser rail 22 is provided on the drive wheel presser rail near the position beyond the notch 21, that is, the rear wheel presser rail 22. Furthermore, an auxiliary roller 13 that is mounted on the step frame 8 and can roll on the surface of the auxiliary rail 23 is provided.
[0026]
  The auxiliary rail 23, the auxiliary roller 13, and the rear wheel 12 described above constitute support means for supporting the step 2 in a substantially horizontal state when the front wheel 10 passes through the notch portion 21.
[0027]
  As shown in FIG. 6, the front wheel rail 14 located in the vicinity of the lower floor floor entrance / exit 4 is also provided with a notch 20 that is set to a dimension that allows the rear shaft 11 to be inserted and always forms an opening. On the lower floor entrance / exit 4 side, the combination of the auxiliary roller 13 and the auxiliary rail 23 described above is not provided.
[0028]
  In another embodiment configured as described above, when the step 2 pulled by the step chain 3 reaches the vicinity of the upper floor entrance / exit 5 and its moving direction is going to be reversed, that is, stored in the support 1. The auxiliary roller 13 shown in FIG. 8 rides on the auxiliary rail 23 and the auxiliary roller 13 and the rear wheel 12 support the step 2 when trying to rise from the lower position to the upper position where passengers can be used. Thus, the step is kept almost horizontal. Therefore, the front wheel 10 can be put on the front wheel rail 14 again beyond the position of the notch 21 without dropping the front wheel 10 from the notch 21. From this state, the rear shaft 11 passes through the notch 21, so that the rear shaft 11 can be moved smoothly. FIG. 8 shows a state in which the step 2 is lifted after such an operation is finished.
[0029]
  As described above, when the front wheel 10 rolls over the front wheel rail 14 beyond the notch 21, the auxiliary roller 13 is separated from the auxiliary rail 23 and does not contact the surface of the rear wheel presser rail 22. To be kept. During the subsequent downward movement of the step 2, the front wheel 10 is guided by the front wheel rail 14 and the rear wheel 12 is guided by the rear wheel rail 15, so that the step 2 moves smoothly.
[0030]
  Then, when the step 2 moves in the downward direction and reaches the vicinity of the lower floor entrance / exit 4 as shown in FIG. 6, the movement direction is about to reverse again, that is, from the upper position where passengers can use it. When trying to descend into the support 1, the rear shaft 11 is inserted through the notch 20 shown in FIG. 6, the rear wheel 12 is smoothly guided by the rear wheel rail 15, and the front wheel 10 falls due to its own weight. Thus, it passes through the notch 19 formed in the front wheel rail 15 and is smoothly guided to the front wheel rail 14.
[0031]
  During the movement in the upward direction of the step 2 performed following the movement of the step 2 in the vicinity of the lower floor entrance / exit 4, the front wheel 10 is connected to the front wheel rail in the same manner as in the above-described lowering operation of the step 2. 14, the rear wheel 12 is guided by the rear wheel rail 15, so that the step 2 moves smoothly in the upward direction. Then, as described above again, the step 2 reaches the vicinity of the upper floor entrance / exit 5 and its moving direction is reversed. Thereafter, the same operation is continuously performed during the descent operation of the escalator.
[0032]
  Even in this other embodiment, as in the above-described embodiment shown in FIGS. 1 to 5, the step 2 is changed when the direction of movement is reversed near the upper floor entrance / exit 5. It can be moved in a form that is kept almost horizontal via the auxiliary roller 13 and the auxiliary rail 23 shown in FIG. 8, and the rear shaft 11 passes through the notch 21 in the vicinity of the upper floor entrance / exit 5. The rear shaft 11 can be moved smoothly. That is, without changing the overall shape of the step 2, the step 2 can be circulated while keeping the step upward, and the transition of the step 2 when the direction of movement of the step 2 is changed smoothly. Can be done. Thereby, the request | requirement of reducing the height dimension of the support body 1 is realizable. This another embodiment also has a simple configuration in which notches 20 and 21 and an auxiliary roller 13 for supporting the step 2 substantially horizontally near the notch 21 and a supporting means including an auxiliary rail 23 are provided. Therefore, it is easy to manufacture and practical.
[0033]
  FIG. 9 is a side view of an essential part showing another example of an auxiliary rail arrangement structure provided in the present invention. 1 to 5, the rear wheel 12 that is a driven wheel is positioned so as to be able to roll on the rear wheel rail 15 that is a driven wheel guide rail beyond the notch 18. At this time, a gap portion 24 for separating the auxiliary roller 13 from the auxiliary rail 17 is formed. That is, the rear wheel presser rail 16 portion from the auxiliary rail 17 is cut and removed. In this configuration, the material cost can be saved, and the overall weight can be reduced. Another example of the arrangement structure of the auxiliary rails 17 shown in FIG. 9 corresponds to the invention according to claim 6 of the present invention.
[0034]
  FIG. 10 is a side view of an essential part showing another example of the supporting means provided in the present invention. Another example is that the arrangement of the auxiliary roller and the auxiliary rail in the embodiment shown in FIGS. 1 to 5 is reversed. As shown in FIG. 10, a driven wheel presser rail near the notch 18 is used. The auxiliary roller 25 is fixed at a position above a certain rear wheel presser rail, and a guide body 26 capable of contacting the auxiliary roller 25 is provided on the step 2 side. Even when the rear wheel 12, which is a driven wheel, reaches the notch portion 18, the guide body 26 is put on the auxiliary roller 25 so that the step 2 can be supported horizontally without any trouble.
[0035]
  In the case of another embodiment as shown in FIGS. 6 to 8, that is, in the case of an escalator for lowering operation, the auxiliary rail 23 is used instead of the auxiliary wheel 23 on the rear wheel presser rail 22 which is the drive wheel presser rail shown in FIG. The auxiliary roller 25 similar to that shown in FIG. 10 may be provided, and a guide body 26 may be provided instead of the auxiliary roller 13 mounted on the step 2.
[0036]
  Each of the configurations described above corresponds to the invention according to claim 7 of the present invention.
[0037]
  Although not particularly illustrated, an auxiliary rail may be provided on the presser rail, and a guide member capable of sliding contact with the auxiliary rail may be provided on the step 2. Even if comprised in this way, the step 2 can be supported without trouble by a guide member getting on an auxiliary rail.
[0038]
  Furthermore, although not shown in the drawings, as a support means for supporting the step substantially horizontally when the driven wheel passes through the notch, the step 2 is substantially made by jetting compressed air instead of the mechanical structure as described above. It is good also as a structure which provides the support means which supports horizontally, or the support means which supports the step 2 substantially horizontally using the repulsive force of a magnet.
[0039]
  FIG. 11 is a principal side view showing another example of the notch provided in the present invention, and FIG. 12 is a principal plan view as seen from the direction C in FIG.
[0040]
  In the embodiment shown in FIGS. 1 to 5, since the bearing 9 a of the front shaft 9 that is a drive shaft is formed so as to protrude from the end of the step 2, the opening size of the notch 18 is changed to the bearing. 9a is formed in a relatively large size that allows the insertion of 9a. However, as shown in FIGS. 11 and 12, the bearing 9a of the front shaft 9 is provided so as not to protrude from the end of the step 2, and the opening size of the notch 27 is provided. May be configured to have a relatively small size that allows only the front shaft 9 to be inserted. This configuration corresponds to the invention according to claim 10 of the present invention.
[0041]
  In each of the above embodiments, an escalator has been described as an example of a passenger conveyor. However, the present invention is not limited to this, and may be employed in an automatic line or the like that horizontally moves the step 2 over almost the entire movement region.
[0042]
【The invention's effect】
  With the configuration as described above, according to the inventions according to the claims of the present invention, the overall shape of the step is not deformed, and the stepped surface of the step is circulated and moved upward. Therefore, it is possible to smoothly move the step when the moving direction of the step changes, thereby realizing the desire to reduce the height of the support, and the notch and the vicinity of the notch Therefore, since it is a simple configuration that only provides support means for supporting the step substantially horizontally, it is easy to manufacture and has the effect of being practical.
[Brief description of the drawings]
FIG. 1 is a side view showing an external configuration of an embodiment of a passenger conveyor of the present invention.
FIG. 2 is a side view showing a configuration of a main part of one embodiment of the present invention shown in FIG. 1 and showing a state when a step is located in the vicinity of a lower floor floor entrance and a rear wheel reaches immediately before a notch. FIG.
FIG. 3 is a side view showing a configuration of a main part of the embodiment of the present invention shown in FIG. 1 and showing a state when a step is located near a lower floor entrance and a rear wheel reaches a notch. is there.
4 is a plan view of the main part as viewed from the direction A in FIG. 3;
FIG. 5 is a side view showing a configuration of a main part of the embodiment of the present invention shown in FIG. 1 and a state in which a step is located in the vicinity of the upper floor entrance and exit and a rear wheel reaches just before the notch. FIG.
FIG. 6 is a side view showing a configuration of a main part of another embodiment of the present invention and showing a state when a step is positioned near the lower floor floor entrance and a rear wheel reaches just before the notch. .
7 is a plan view of the main part as viewed from the direction B in FIG. 6;
FIG. 8 is a side view showing a configuration of a main part of another embodiment of the present invention shown in FIG. 6 and a state when a step is located in the vicinity of an upper floor entrance / exit.
FIG. 9 is a side view of an essential part showing another example of an auxiliary rail arrangement structure provided in the present invention.
FIG. 10 is a side view of an essential part showing another example of the supporting means provided in the present invention.
FIG. 11 is a side view of an essential part showing another example of a notch provided in the present invention.
12 is a plan view of the main part as viewed from the direction C in FIG. 11;
[Explanation of symbols]
  1 Support
  2 steps
  3 Step chain
  4 Lower floor entrance
  5 Upper floor floor entrance
  6 railings
  7 Moving handrail
  8 Step frame
  9 Front shaft (drive wheel shaft) [driven wheel shaft]
  9a Bearing
  9b shaft center
  10 Front wheel (drive wheel) [driven wheel]
  11 Rear shaft (driven wheel shaft) [drive wheel shaft]
  11a axis
  12 Rear wheel (driven wheel) [drive wheel]
  13 Auxiliary roller (support means)
  13a axis
  14 Front wheel rail (drive wheel guide rail) [driven wheel guide rail]
  15 Rear wheel rail (driven wheel guide rail) [drive wheel guide rail]
  16 Rear wheel presser rail (driven wheel presser rail)
  17 Auxiliary rail (support means)
  18 Notch
  19 Notch
  20 Notch
  21 Notch
  22 Rear wheel presser rail (driven wheel presser rail)
  23 Auxiliary rail (support means)
  24 gap
  25 Auxiliary roller (support means)
  26 Guide body (support means)
  27 Notch
  30 lines

Claims

A drive wheel shaft positioned on the side pulled by the step chain, a drive wheel mounted on the drive wheel shaft, a drive wheel guide rail for guiding the drive wheel, and an inner track of the drive wheel. A driven wheel, a driven wheel shaft on which the driven wheel is mounted, a driven wheel guide rail on which the driven wheel is guided, and a step that moves as the driving wheel and the driven wheel roll. In the passenger conveyor that circulates and moves in a form that keeps the tread surface of this step upward without deforming the overall shape of
The driven wheel guide rail located in the vicinity where the moving direction of the step is reversed is provided with a notch portion through which the shaft portion of the driving wheel shaft can be inserted and always forms an opening, and the driven wheel passes through the notch portion. Support means for supporting the step in a substantially horizontal state when the support wheel is disposed, and the support means is disposed on one of the driven wheel press rail and the drive wheel press rail in the vicinity of the notch, and the driven wheel An auxiliary rail having a surface higher than the surface of the corresponding one of the presser rail and the driving wheel presser rail, and an auxiliary roller mounted on the step and capable of rolling on the surface of the auxiliary rail. Passenger conveyor characterized by including .

The auxiliary roller is disposed between the driving wheel and the driven wheel, and is disposed so that the shaft center is located above a line connecting the shaft center of the driving wheel and the shaft center of the driven wheel. The passenger conveyor according to claim 1.

3. A gap portion is provided to allow the auxiliary roller to be separated from the auxiliary rail when the driven wheel is positioned on the driven wheel guide rail so as to roll over the notch. The passenger conveyor described.

A drive wheel shaft positioned on the side pulled by the step chain, a drive wheel mounted on the drive wheel shaft, a drive wheel guide rail for guiding the drive wheel, and an inner track of the drive wheel. A driven wheel, a driven wheel shaft on which the driven wheel is mounted, a driven wheel guide rail on which the driven wheel is guided, and a step that moves as the driving wheel and the driven wheel roll. In the passenger conveyor that circulates and moves in a form that keeps the tread surface of this step upward without deforming the overall shape of
The driven wheel guide rail located in the vicinity where the moving direction of the step is reversed is provided with a notch portion through which the shaft portion of the driving wheel shaft can be inserted and always forms an opening, and the driven wheel passes through the notch portion. Support means for supporting the step in a substantially horizontal state when the support step is provided, and the support means is provided with an auxiliary roller provided on one of the driven wheel press rail and the drive wheel press rail in the vicinity of the notch. And a passenger conveyor provided on the step and capable of contacting the auxiliary roller .

A drive wheel shaft positioned on the side pulled by the step chain, a drive wheel mounted on the drive wheel shaft, a drive wheel guide rail for guiding the drive wheel, and an inner track of the drive wheel. A driven wheel, a driven wheel shaft on which the driven wheel is mounted, a driven wheel guide rail on which the driven wheel is guided, and a step that moves as the driving wheel and the driven wheel roll. In the passenger conveyor that circulates and moves in a form that keeps the tread surface of this step upward without deforming the overall shape of
The driven wheel guide rail located in the vicinity where the moving direction of the step is reversed is provided with a notch portion through which the shaft portion of the driving wheel shaft can be inserted and always forms an opening, and the driven wheel passes through the notch portion. Support means for supporting the step in a substantially horizontal state when the support step is provided, and the support means is disposed on one of the driven wheel press rail and the drive wheel press rail in the vicinity of the notch, and Including an auxiliary rail having a surface higher than the surface of the corresponding one of the driving wheel pressing rail and the driving wheel pressing rail, and a guide member provided on the step and capable of sliding contact with the auxiliary rail. Passenger conveyor featuring .