JP2004141387A - Method and device for rescuing worker in gondola apparatus - Google Patents

Method and device for rescuing worker in gondola apparatus Download PDF

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JP2004141387A
JP2004141387A JP2002309468A JP2002309468A JP2004141387A JP 2004141387 A JP2004141387 A JP 2004141387A JP 2002309468 A JP2002309468 A JP 2002309468A JP 2002309468 A JP2002309468 A JP 2002309468A JP 2004141387 A JP2004141387 A JP 2004141387A
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Prior art keywords
rescue
rope
hanging
arm
gondola
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JP2002309468A
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JP3790210B2 (en
Inventor
Chihiro Araki
荒木 千博
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Nihon Bisoh Co Ltd
日本ビソー株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for rescuing a worker in a gondola apparatus by which a rescue rope for rescuing the worker in a gondola cage is easily and reliably lowered onto the gondola cage, and the worker is smoothly rescued, and also to provide its device. <P>SOLUTION: A rescue arm 21 arranged in a suspension head 13 so as to be rockable by which the gondola cage 15 is suspended and supported via suspension wire 14. The top end of the rescue rope 23 is guided to the wire 14 by metallic guide fixtures 25. While the rescue arm 21 is rocked, the rope 23 is extended from the arm 21, and lowered onto the gondola cage 15 along the wire 14. Thus, the workers 3 in the gondola cage 15 are rescued through the use of the rescue rope 23. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、建築物の上部に配設された吊り下げ機構から垂下された吊り下げロープ部材によって作業床を昇降可能に吊り下げ支持して成るゴンドラ装置において、緊急時に作業床に搭乗した作業員を救出する方法及び装置に関する。
【0002】
【従来の技術】
高層建築物の窓清掃や外壁面の保守点検等の際には、建築物の上部から垂下された吊り下げロープ部材部材によって作業床を昇降可能に吊り下げ支持したゴンドラ装置が用いられる。
【0003】
作業床の昇降構造は、作業床に結合された吊り下げロープ部材部材を建築物の屋上に配設された昇降ドラムに巻き取り・繰り出しすることで行うもの(例えば特許文献1参照)、建築物の上部から垂下された吊り下げロープ部材に作業床に設けられたワインダーが係合し、ワインダーの駆動によって吊り下げロープ部材に沿って昇降するもの(例えば特許文献2参照)がある。
【0004】
上記のごときゴンドラ装置において、作業中に停電や駆動部位の故障等何らかの原因で作業床の昇降ができなくなる事態が起こり得、そのような場合には、地上から梯子車を用いたり、建築物の屋上側から救助用ロープを降下させたりして行われる。
【0005】
【特許文献1】
特開2000−320133号公報
【特許文献2】
特開平10−169183号公報
【0006】
【発明が解決しようとする課題】
しかしながら、梯子車では届く範囲に限界があるために高層建築物の所定階以上では対応することができず、また、屋上側から救助用ロープを下ろすにもビル風によって救助用ロープが流されて目的位置に降下させるのが極めて難しく、何れにしても救出活動は極めて困難で時間を要し、作業者に苦痛を強いるという問題があった。尚、救助用ロープの先端に吊り下げロープ部材に遊嵌する案内部材を装着し、救助用ロープを吊り下げロープ部材に沿って降下させることで確実に作業床に降下させることが考えられるが、その場合、救助用ロープの巻き癖による捻れや風によって救助用ロープが吊り下げロープ部材に巻き付いて降下不能になってしまうという問題がある。
【0007】
本発明は、上記問題に鑑みてなされたものであって、作業床に搭乗した作業員を救出する救助用ロープを容易且つ確実に短時間で作業床に降下させることができ、作業員を円滑に救出することのできるゴンドラ装置における作業員救助方法及び装置を提供することを目的とする。
【0008】
【課題を解決する為の手段】
上記目的を達成する本発明のゴンドラ装置における作業員救助方法は、建築物の上部に配設された吊り下げ機構から垂下された吊り下げロープ部材によって作業床を昇降可能に吊り下げ支持して成るゴンドラ装置において、緊急時に前記作業床に搭乗した作業員を救出する方法であって、建築物の上部から、先端部が前記吊り下げロープ部材に案内される救助ロープ部材を、水平方向に所定距離往復移動させつつ繰り出して、前記吊り下げロープ部材に沿って降下させて作業床に至らせ、該救助ロープを用いて作業床に搭乗した作業員を救出することを特徴とする。
【0009】
また、ゴンドラ装置における作業員救助装置は、建築物の上部に配設された吊り下げ機構から垂下された吊り下げロープ部材によって作業床を昇降可能に吊り下げ支持して成るゴンドラ装置において、前記吊り下げ機構に所定角度範囲で揺動可能に枢支された救助アーム部材と、前記救助アーム部材を揺動駆動するアーム揺動駆動手段と、先端に前記吊り下げロープ部材に沿って移動可能な案内部を備え前記救助アーム部材に沿って配索された救助ロープ部材と、前記救助ロープを移動駆動する救助ロープ駆動手段と、を備え、前記案内部材によって前記吊り下げロープ部材に沿って移動する前記救助ロープ部材を、前記救助アーム部材を前記揺動駆動手段によって揺動させつつ前記救助ロープ駆動手段によって繰り出して前記作業床に降下させ、該救助ロープを用いて前記作業床に搭乗した作業員を救出することを特徴とする。
【0010】
【発明の実施の形態】
以下、添付図面を参照して本発明の実施の形態について説明する。
図1は本発明に係るゴンドラ装置における作業員救助方法を適用する作業員救助装置の一構成例を備えるゴンドラ装置の全体を示す側面図であり、図2(A)はその吊り下げヘッド部位の拡大図,(B)はアーム基端部の平面図である。
【0011】
図示ゴンドラ装置10は、建築物1の屋上に配設された機械室11に設けられた支持アームとしての伸縮ブーム12の先端の吊り下げ機構としての吊り下げヘッド13から、吊り下げロープ部材としての左右一対の吊りワイヤ14(14L,14R)が垂下され、この吊りワイヤ14によって作業床としてのゴンドラケージ15を昇降可能に吊り下げ支持し、更に、吊り下げヘッド13に装着された救助アーム部材としての救助アーム21と、伸縮ブーム12の基端部上側に設けられた救助ロープ駆動手段としての救助用昇降装置22とから成る作業員救助装置20を備えて構成されている。
【0012】
機械室11は、その内部に図示しないが昇降装置及び油圧装置を備え、油圧モーターによって回転駆動される回転軸11Aによって伸縮ブーム12を支持している。
【0013】
伸縮ブーム12は、複数段に構成されて内設された油圧シリンダによって伸縮駆動されると共に、その基部に設けられた俯仰シリンダ12Aによって上下方向に揺動駆動されるようになっている。
【0014】
吊り下げヘッド13は、図3に平面図,図4に正面側から見た吊りワイヤ配索経路概念図に示すように、両端に垂下シーブ13Jを備えた垂下ビーム13Bが前後揺動アーム13Aを介して伸縮ブーム12の先端に装着され、また、その垂下ビーム13Bに救助アーム21を備えて構成されている。
【0015】
前後揺動アーム13Aは、その下部で伸縮ブーム12に当該伸縮ブーム12の起伏揺動面と直交する前後揺動軸13Cで揺動可能に枢着されており、前方上部に垂下ビーム13Bを前後揺動軸13Cと直交するビーム旋回軸13Dで回転自在に支持している。その前方下部と伸縮ブーム12の先端部下側との間に前後揺動シリンダ13Eが設けられており、この前後揺動シリンダ13Eによって当該前後揺動アーム13Aが伸縮ブーム12に対して前後揺動軸13Cを中心として鉛直平面内で上下前後に揺動駆動されるようになっている。
【0016】
前後揺動軸13Cには、吊りワイヤ14及び救助ロープ23を案内する揺動支点シーブ13Fがその巻き掛け径の接線をビーム旋回軸13Dの中心軸とほぼ一致させて回転自在に装着されている。この揺動支点シーブ13Fは、吊りワイヤ14L用の二枚のシーブと吊りワイヤ14R用の二枚のシーブの間に救助ロープ23用のシーブが介装された五層となっているものである。また、ビーム旋回軸13Dは中空に形成されており、揺動支点シーブ13Fから後述する分岐シーブ13Gに至る吊りワイヤ14はその内部を配索されるようになっている。
【0017】
垂下ビーム13Bは、ゴンドラケージ15の横幅と対応する長さで両端部にそれぞれ垂下シーブ13Jを備え、前後揺動アーム13Aにビーム旋回軸13Dで旋回可能に支持されると共に、そのビーム旋回軸13Dと対応する中央部に左右の分岐シーブ13Gを備えている。前後揺動アーム13Aとの間に水平揺動シリンダ13Hが設けられており、この水平揺動シリンダ13Hによってビーム旋回軸13Dを中心として伸縮ブーム40に対して所定の角度範囲で旋回駆動されるようになっている。
【0018】
分岐シーブ13Gは、その回転面を垂下ビーム13Bと平行とし、巻き掛け径の接線がビーム旋回軸13Dの中心軸とほぼ一致するように設けられている。
【0019】
吊りワイヤ14L,14Rは、本構成例ではそれぞれ二本のワイヤから成り、機械室11内の昇降装置から伸縮ブーム12に沿ってブーム先端シーブ12Bに配索されると共に、吊り下げヘッド13内を揺動支点シーブ13Fまで同一経路で配索された後、分岐シーブ13Gで垂下ビーム13Bの延設方向に偏向されて垂下シーブ13Jを介して垂下し、ゴンドラケージ15の側端部に結合されている。
【0020】
上記のごとく構成された吊り下げヘッド13では、垂下ビーム13Bは前後揺動シリンダ13Eの駆動によって前後揺動軸13Cを中心として揺動し、水平揺動シリンダ13Hの駆動によってビーム旋回軸13Dを中心として旋回する。吊りワイヤ14は、前後揺動軸13Cと同中心の揺動支点シーブ13Fと分岐シーブ13Gによってビーム旋回軸13D内を配索されているため、垂下ビーム13Bの旋回によってもその配索経路長が変化することがなく、従って、吊り下げヘッド13の旋回による配索経路長に差で吊り下げ支持したゴンドラケージ15が傾くことはない。また、前後揺動シリンダ13Eは、常に前後揺動アーム13Aを鉛直に保つ(即ち吊り下げヘッド80を水平に保つ)ように俯仰シリンダ12Aの駆動による伸縮ブーム12の俯仰角度と連動するようになっている。
【0021】
ゴンドラケージ15は、両端を吊りワイヤ14によって吊り下げ支持されると共に、建築物1と対向する側にガイドシューが突設されており、このガイドシューが建築物1の壁面1Aに鉛直に形成されたガイド溝1Bに移動可能に嵌合し、吊りワイヤ14の巻取・繰出によってガイド溝1Bに沿って昇降する。
【0022】
作業員救助装置20は、伸縮ブーム12の基端部の救助用昇降装置22によって巻取・繰出される救助ロープ部材として救助ロープ23が、伸縮ブーム12に沿って配索されて吊り下げヘッド13に装着された救助アーム21から垂下され、救助用昇降装置22の駆動によってその先端部を昇降し得るように構成されている。
【0023】
救助アーム21は、下側に開放する逆U字状断面形状で、垂下ビーム13Bの旋回中心(ビーム旋回軸13D)から片側の長さと略等しい長さを有し、基端部で垂下ビーム13Bの上面にビーム旋回軸13Dの延長上に設けられた軸受13Kによって水平平面内で回転可能に揺動可能に装着されている。その先端部には垂下ビーム13Bの垂下シーブ13Jの下側に達するカバー部21Aが延設されており、後述するように当該救助アーム21が垂下ビーム13Bに沿った退避位置では、カバー部21Aがちょうど垂下シーブ13Jの外側に覆うように位置し、その内側を救助ロープ23が配索されている。
【0024】
また、救助アーム21の基端部には旋回平面と平行なモーターベース21Bが設けられており、このモーターベース21Bにアーム揺動駆動手段としてのフランジ型のアーム揺動モーター24が下向きに装着されると共に、その下側に突出する回転軸に装着された駆動ギア24Aが垂下ビーム13Bの軸受13Kの外周の固定ギア13Lと噛合している。これにより、アーム揺動モーター24の回転によって救助アーム21を旋回駆動し得るようになっている。このアーム揺動モーター24は図示しない制御装置によって回転駆動制御され、救助アーム21を垂下ビーム13Bに対して所定の角度となる位置に旋回させると共に、その位置を中心として所定角度範囲で往復揺動させる。通常時は図に示すように垂下ビーム13Bに沿った退避位置に格納される。
【0025】
救助アーム21の内部には、基端部と先端部に救助ロープ23を案内するシーブ21A,21B,21Cがそれぞれその回転軸を水平とすると共に回転面を当該救助アーム21と平行として配設されている。基端部のシーブ21Aはその巻き掛け径の接線がビーム旋回軸13Dの中心軸とほぼ一致するように設定され、先端部のシーブ21Cは、当該救助アーム21が垂下ビーム13Bに沿った退避位置でその巻き掛け径の接線が垂下ビーム13Bの垂下シーブ13Jの巻き掛け径の接線の外側に所定間隔で近接するように設定されている。これにより救助ロープ23は、先端部のシーブ21Cから垂下ビーム13Bの垂下シーブ13Jから垂下する吊りワイヤ14に隣接して垂下する。
【0026】
救助用昇降装置22は、モーター等の駆動源によってドラム22Aを回転駆動し、このドラム22Aに救助ロープ23を巻取・繰出し得るように構成されている。
【0027】
救助ロープ23は、救助用昇降装置22から伸縮ブーム12に沿ってブーム先端シーブ12Bに至り、揺動支点シーブ13F,救助アーム21内のシーブ21A,21B,21Cを介して配索されて一方の吊りワイヤ14(図では吊りワイヤ14R)に隣接して垂下する。その先端には吊りワイヤ14に遊嵌する案内部としての案内金具25が設けられており、この案内金具25によって当該救助ロープ23の先端部の移動は吊りワイヤ14に沿って行われるようになっている。尚、案内金具25には、図示しないが救助ロープ23の降下に必要な重量のウェイトが装着される。
【0028】
上記のごとく構成されたゴンドラ装置10は、吊りワイヤ14を介して吊り下げ支持したゴンドラケージ15を、伸縮ブーム12の回転軸11A回りの回転と伸縮及び俯仰によって建築物1の任意の外壁面1Aと対応する位置に移動させると共に、吊り下げヘッド13の垂下ビーム13Bの旋回によって外壁面1Aに沿った姿勢とし、吊りワイヤ14の巻取・繰出によってガイド溝1Bに沿って昇降させて窓清掃等の作業を行うことができる。伸縮ブーム12の俯仰の際には、吊り下げヘッド13の前後揺動アーム13Aの揺動によって垂下ビーム13Bの旋回軸(ビーム旋回軸13D)は鉛直に保たれる。尚、作業員救助装置20を含む当該ゴンドラ装置10の駆動制御は、建築物内部の制御室からの遠隔操作によって行われるものである。
【0029】
ここで、作業中何らかの原因でゴンドラケージ15が途中で昇降不能となった場合には、ゴンドラケージ15に搭乗した作業員を作業員救助装置20を用いて下記のごとく救出する。
【0030】
即ち、図5(A)に示すようにアーム揺動モーター21Bによって救助アーム21を旋回させて垂下ビーム13Bに対して所定角度(図では90゜)とし、更に図5(B)に示すように左右に所定角度範囲で揺動させつつ、図6に示すように救助用昇降装置21の駆動によって救助ロープ23を繰り出す。これにより、救助ロープ23の先端(即ち案内金具25)が吊りワイヤ14に沿って上下しつつ降下し、吊りワイヤ14に巻き付くことなくゴンドラケージ15に到達できる。尚、図5(B)では、建築物に対応させて揺動した状態の垂下ビーム13Bが実線で示してある。
【0031】
救助アーム21の垂下ビーム13Bに対する旋回角度は、当該降下時における風向きを考慮し、降下する救助ロープ23が風に流されても吊りワイヤ14に接近しないようにに設定する。また、救助ロープ23の降下時における揺動角度範囲は、吊りワイヤ14と干渉せず巻き付きを防ぐに十分な先端移動量が得られるよう(例えば設定旋回位置を中心として±22.5゜=45゜程度)に設定される。
【0032】
救助ロープ23がゴンドラケージ15に到達すると、救助アーム21の揺動を停止し、搭乗した作業者をして救助ロープ23を案内金具25から外して自分又は他の作業者3の吊り上げベルトに結合させ、図7(A)に正面図,(B)にその側面図を示すように救助用昇降装置21の駆動によって吊り下げて、屋上又は地上の何れか近い側(又は屋上側又は地上側の避難場所)に移動する。この吊り下げ移動時において、地上側に下ろす場合には、救助ロープ23がゴンドラケージ15と干渉しないように必要に応じて垂下ビーム13Bの揺動位置を設定する。また、救助される作業者3は、吊り上げベルトに連結されたガイドシュー3Aを建築物1のガイド溝1Bに嵌合させて揺れ止めとする。
【0033】
尚、上記構成例は屋上の機械室に備えた昇降装置による吊りワイヤの巻取・繰出によってゴンドラケージを昇降する構成のゴンドラ装置に本発明の救助装置を適用したものであるが、本発明はこれに限るものではなく、建築物の上部から垂下された吊りワイヤにゴンドラケージに配設されたワインダーが係合し、このワインダーの駆動によって昇降する構成のゴンドラ装置に適用しても良いものである。また、救助用昇降装置の昇降装置も、救助ロープをドラムに巻き取るものでなくワインダーを用いる構成としても良いものである。
【0034】
【発明の効果】
以上述べたように、本発明に係るゴンドラ装置における作業員救助方法によれば、建築物の上部から、先端部が吊り下げロープ部材に案内される救助ロープ部材を、水平方向に所定距離往復移動させつつ繰り出して、吊り下げロープ部材に沿って降下させて作業床に至らせ、該救助ロープを用いて作業床に搭乗した作業員を救出することにより、救助ロープ部材は繰り出しの際の往復移動によって先端部が吊り下げロープ部材に沿って上下しつつ降下するために巻き癖による捻れや風によって吊り下げロープ部材に巻き付くことなく作業床まで届き、円滑・迅速な救助が可能となるものである。
【0035】
また、ゴンドラ装置における作業員救助装置は、吊り下げ機構に所定角度範囲で揺動可能に枢支された救助アーム部材と、救助アーム部材を揺動駆動するアーム揺動駆動手段と、先端に吊り下げロープ部材に沿って移動可能な案内部を備え救助アーム部材に沿って配索された救助ロープ部材と、救助ロープを移動駆動する救助ロープ駆動手段と、を備え、案内部材によって吊り下げロープ部材に沿って移動する救助ロープ部材を、救助アーム部材を揺動駆動手段によって揺動させつつ救助ロープ駆動手段によって繰り出して作業床に降下させ、該救助ロープを用いて作業床に搭乗した作業員を救出することにより、繰出時には救助ロープ部材は救助アーム部材の揺動によって先端の案内部材が吊り下げロープ部材に沿って上下しつつ降下するために巻き癖による捻れや風によって吊り下げロープ部材に巻き付くことなく作業床まで届き、円滑・迅速な救助が可能となるものである。
【図面の簡単な説明】
【図1】本発明に係るゴンドラ装置における作業員救助方法を適用する作業員救助装置の一構成例を備えるゴンドラ装置の全体を示す側面図である。
【図2】(A)は吊り下げヘッド部位の拡大図,(B)はアーム基端部の平面図である。
【図3】吊り下げヘッドの平面図である。
【図4】吊り下げヘッドを正面側から見た吊りワイヤ配索経路概念図である。
【図5】救助装置の作用を説明する平面図である。
【図6】救助手順の説明図である。
【図7】救助手順の説明図である。
【符号の説明】
1 建築物
10 ゴンドラ装置
13 吊り下げヘッド(吊り下げ機構)
14 吊りワイヤ(吊り下げロープ部材)
15 ゴンドラケージ(作業床)
20 作業員救助装置
21 救助アーム(救助アーム部材)
22 救助用昇降装置(救助ロープ駆動手段)
23 救助ロープ(救助ロープ部材)
24 アーム揺動モーター(アーム揺動駆動手段)
25 案内金具(案内部)
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is directed to a gondola device in which a work floor is suspended and supported by a suspending rope member suspended from a suspension mechanism disposed at an upper part of a building so that the work floor can be raised and lowered. A method and an apparatus for rescuing an object.
[0002]
[Prior art]
BACKGROUND ART When cleaning windows of a high-rise building or performing maintenance and inspection of an outer wall surface, a gondola device is used in which a work floor is suspended and supported so that the work floor can be raised and lowered by a hanging rope member member suspended from the top of the building.
[0003]
The work floor elevating structure is performed by winding and unwinding a hanging rope member connected to the work floor on an elevating drum arranged on the roof of a building (for example, see Patent Document 1), and a building. There is a type in which a winder provided on a work floor engages with a hanging rope member suspended from the upper part of the work, and moves up and down along the hanging rope member by driving the winder (for example, see Patent Document 2).
[0004]
In the gondola device as described above, the work floor may not be able to be raised or lowered for some reason such as a power outage or a failure of the driving part during the work.In such a case, a ladder truck may be used from the ground, This is done by dropping a rescue rope from the rooftop.
[0005]
[Patent Document 1]
JP 2000-320133 A [Patent Document 2]
JP-A-10-169183
[Problems to be solved by the invention]
However, the ladder car has a limited reach, so it cannot be used above a certain floor of a high-rise building, and the rescue rope is swept away by the building wind even when the rescue rope is lowered from the rooftop. It is extremely difficult to lower to the target position, and in any case, the rescue operation is extremely difficult and time-consuming, and there is a problem that the operator is in pain. In addition, it is conceivable that a guide member to be loosely fitted to the hanging rope member is attached to the tip of the rescue rope, and the rescue rope is lowered along the hanging rope member so as to be surely lowered to the work floor. In this case, there is a problem that the rescue rope wraps around the hanging rope member and cannot be lowered due to the twist or wind caused by the winding habit of the rescue rope.
[0007]
The present invention has been made in view of the above problems, and a rescue rope for rescuing a worker on a work floor can be easily and reliably lowered to the work floor in a short time, so that the worker can be smoothly moved. It is an object of the present invention to provide a method and apparatus for rescuing a worker in a gondola apparatus that can be rescued to a worker.
[0008]
[Means for solving the problem]
A worker rescue method in a gondola device of the present invention that achieves the above object is configured such that a work floor is suspended and supported so as to be able to move up and down by a suspension rope member suspended from a suspension mechanism disposed at an upper part of a building. In a gondola device, a method for rescuing a worker who has boarded the work floor in an emergency, wherein a rescue rope member whose tip is guided by the hanging rope member from a top of a building is moved horizontally by a predetermined distance. It is characterized in that it is extended while being reciprocated, lowered along the hanging rope member to reach the work floor, and the worker boarding the work floor is rescued using the rescue rope.
[0009]
Further, the worker rescue device in the gondola device is a gondola device configured to suspend and support the work floor so as to be able to ascend and descend by a suspending rope member suspended from a suspending mechanism disposed at the top of the building. A rescue arm member pivotally supported by a lowering mechanism within a predetermined angle range, arm swing driving means for swinging and driving the rescue arm member, and a guide movable at the tip end along the hanging rope member. A rescue rope member arranged along the rescue arm member and a rescue rope driving means for moving and driving the rescue rope, wherein the rescue rope is moved along the hanging rope member by the guide member. The rescue rope member is extended by the rescue rope driving means while the rescue arm member is swung by the swing driving means, and descends to the work floor. Was characterized by rescue workers on board the work floor using the rescue rope.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a side view showing the whole of a gondola apparatus provided with one configuration example of a worker rescue apparatus to which the worker rescue method of the gondola apparatus according to the present invention is applied, and FIG. The enlarged view, (B) is a plan view of the base end of the arm.
[0011]
The illustrated gondola device 10 includes a hanging head 13 serving as a hanging mechanism at a tip of a telescopic boom 12 serving as a support arm provided in a machine room 11 provided on the roof of the building 1, and a hanging rope member serving as a hanging rope member. A pair of left and right hanging wires 14 (14L, 14R) are hung, and the gondola cage 15 as a working floor is suspended and supported by the hanging wires 14 so as to be able to ascend and descend. Further, as a rescue arm member attached to the hanging head 13 And a worker rescue device 20 including a rescue elevating device 22 as a rescue rope driving means provided above the base end of the telescopic boom 12.
[0012]
Although not shown, the machine room 11 includes an elevating device and a hydraulic device, and supports the telescopic boom 12 by a rotating shaft 11A that is rotationally driven by a hydraulic motor.
[0013]
The telescopic boom 12 is driven to expand and contract by a plurality of stages of hydraulic cylinders provided therein, and is vertically driven to swing by an elevating cylinder 12A provided at the base thereof.
[0014]
As shown in a plan view in FIG. 3 and a conceptual view of a suspension wire routing path viewed from the front side in FIG. 3, a hanging beam 13B having hanging sheaves 13J at both ends of the hanging head 13 is provided with a swing arm 13A. The rescue arm 21 is attached to the hanging beam 13B of the telescopic boom 12.
[0015]
The front-rear swing arm 13A is pivotally attached at its lower part to the telescopic boom 12 with a front-rear swing shaft 13C orthogonal to the up-and-down oscillating surface of the telescopic boom 12. It is rotatably supported by a beam turning axis 13D orthogonal to the swing axis 13C. A forward / backward swinging cylinder 13E is provided between a lower front portion thereof and a lower side of the distal end of the telescopic boom 12, and the longitudinally swinging arm 13A is moved by the longitudinally swinging cylinder 13E with respect to the telescopic boom 12. It is driven to swing up and down and back and forth in a vertical plane about 13C.
[0016]
A swing fulcrum sheave 13F for guiding the suspension wire 14 and the rescue rope 23 is rotatably mounted on the longitudinal swing shaft 13C such that the tangent of the winding diameter thereof substantially coincides with the center axis of the beam turning shaft 13D. . This swing fulcrum sheave 13F is a five-layer structure in which a sheave for a rescue rope 23 is interposed between two sheaves for the suspension wire 14L and two sheaves for the suspension wire 14R. . The beam turning shaft 13D is formed in a hollow shape, and the suspension wire 14 extending from the swing fulcrum sheave 13F to a branch sheave 13G described later is routed inside.
[0017]
The hanging beam 13B has a length corresponding to the width of the gondola cage 15 and has hanging sheaves 13J at both ends thereof. The hanging beam 13B is supported by the swing arm 13A so as to be swingable about the beam swing axis 13D, and its beam swing axis 13D. The left and right branch sheaves 13G are provided in the central portion corresponding to. A horizontal oscillating cylinder 13H is provided between the front and rear oscillating arms 13A, and the horizontal oscillating cylinder 13H is configured to pivotally drive the telescopic boom 40 about a beam pivot axis 13D within a predetermined angle range. It has become.
[0018]
The branch sheave 13G is provided such that its rotating surface is parallel to the hanging beam 13B, and the tangent of the winding diameter substantially coincides with the center axis of the beam turning axis 13D.
[0019]
In the present configuration example, the suspension wires 14L and 14R are each composed of two wires, are routed from the lifting device in the machine room 11 to the boom tip sheave 12B along the telescopic boom 12, and move inside the suspension head 13. After being routed to the swing fulcrum sheave 13F along the same route, it is deflected by the branch sheave 13G in the extending direction of the hanging beam 13B, hangs down via the hanging sheave 13J, and is coupled to the side end of the gondola cage 15. I have.
[0020]
In the suspension head 13 configured as described above, the hanging beam 13B swings around the longitudinal swing shaft 13C by driving the longitudinal swing cylinder 13E, and moves around the beam turning axis 13D by driving the horizontal swing cylinder 13H. Turning. Since the suspension wire 14 is routed in the beam turning shaft 13D by the swinging fulcrum sheave 13F and the branch sheave 13G, which are coaxial with the front and rear swinging shaft 13C, the route length of the hanging wire 14B is also increased by the turning of the hanging beam 13B. There is no change, and therefore, the gondola cage 15 supported by suspension does not tilt due to the difference in the wiring path length due to the rotation of the suspension head 13. Further, the front-rear swinging cylinder 13E is linked to the elevation angle of the telescopic boom 12 driven by the elevation cylinder 12A so as to always keep the front-rear swing arm 13A vertical (that is, keep the suspension head 80 horizontal). ing.
[0021]
The gondola cage 15 has both ends suspended and supported by the hanging wires 14, and has a guide shoe protruding from a side facing the building 1. The guide shoe is formed vertically on the wall 1 </ b> A of the building 1. The guide wire 1B is movably fitted in the guide groove 1B, and is lifted and lowered along the guide groove 1B by winding and feeding out the suspension wire 14.
[0022]
In the worker rescue device 20, a rescue rope 23 as a rescue rope member wound and fed by a rescue elevating device 22 at the base end of the telescopic boom 12 is routed along the telescopic boom 12 and the hanging head 13 is provided. The rescue arm 21 is mounted on the rescue arm 21 and is driven up and down by the rescue elevating device 22.
[0023]
The rescue arm 21 has an inverted U-shaped cross-sectional shape that opens downward, has a length substantially equal to the length of one side from the turning center (beam turning axis 13D) of the hanging beam 13B, and has a hanging beam 13B at the base end. Is mounted so as to be rotatable and rotatable in a horizontal plane by a bearing 13K provided on an extension of the beam turning shaft 13D on the upper surface of the shaft. A cover 21A that extends below the hanging sheave 13J of the hanging beam 13B extends at the tip end thereof. As will be described later, when the rescue arm 21 is in the retracted position along the hanging beam 13B, the cover 21A is not extended. It is located just outside the hanging sheave 13J, and a rescue rope 23 is routed inside.
[0024]
Further, a motor base 21B is provided at the base end of the rescue arm 21 in parallel with the turning plane, and a flange type arm swing motor 24 as an arm swing drive means is mounted on the motor base 21B downward. In addition, a drive gear 24A mounted on a rotating shaft projecting downward is meshed with a fixed gear 13L on the outer periphery of a bearing 13K of the hanging beam 13B. Thus, the rescue arm 21 can be driven to rotate by rotation of the arm swing motor 24. The arm swing motor 24 is rotationally controlled by a control device (not shown) to turn the rescue arm 21 to a position at a predetermined angle with respect to the hanging beam 13B, and to reciprocate in a predetermined angle range around the position. Let it. Normally, it is stored at the retreat position along the hanging beam 13B as shown in the figure.
[0025]
Inside the rescue arm 21, sheaves 21A, 21B, and 21C for guiding the rescue rope 23 at the base end and the distal end are arranged so that their rotation axes are horizontal and the rotation surface is parallel to the rescue arm 21. ing. The sheave 21A at the base end is set so that the tangent of its winding diameter substantially coincides with the center axis of the beam turning axis 13D, and the sheave 21C at the tip is located at the retreat position where the rescue arm 21 moves along the hanging beam 13B. Is set so that the tangent line of the winding diameter is closer to the outside of the tangent line of the hanging diameter of the hanging sheave 13J of the hanging beam 13B at a predetermined interval. As a result, the rescue rope 23 hangs down from the sheave 21C at the distal end adjacent to the suspension wire 14 hanging down from the hanging sheave 13J of the hanging beam 13B.
[0026]
The rescue elevating device 22 is configured to rotationally drive the drum 22A by a driving source such as a motor, and to wind and rescue the rescue rope 23 on the drum 22A.
[0027]
The rescue rope 23 extends from the rescue elevating device 22 to the boom tip sheave 12B along the telescopic boom 12, and is routed via the swing fulcrum sheave 13F and the sheaves 21A, 21B, and 21C in the rescue arm 21. It hangs down adjacent to the suspension wire 14 (the suspension wire 14R in the figure). A guide fitting 25 is provided at the tip of the rescue rope 23 as a guide portion that is loosely fitted to the hanging wire 14, and the tip of the rescue rope 23 is moved along the hanging wire 14 by the guide fitting 25. ing. Although not shown, a weight having a weight necessary for lowering the rescue rope 23 is attached to the guide fitting 25.
[0028]
The gondola device 10 configured as described above allows the gondola cage 15 suspended and supported via the suspension wire 14 to rotate the telescopic boom 12 around the rotation axis 11A, expand and contract, and raise or lower the arbitrary outer wall 1A of the building 1. At the position corresponding to the outer wall surface 1A by the rotation of the hanging beam 13B of the suspension head 13, and by lifting and lowering the suspension wire 14 along the guide groove 1B by winding and feeding out the window. Work can be done. When the telescopic boom 12 is lowered, the swing axis of the hanging beam 13B (the beam swing axis 13D) is kept vertical by the swing of the swing arm 13A of the suspension head 13 in the front-rear direction. The drive control of the gondola device 10 including the worker rescue device 20 is performed by remote control from a control room inside the building.
[0029]
If the gondola cage 15 cannot be raised or lowered halfway during the operation for some reason, the worker riding on the gondola cage 15 is rescued using the worker rescue device 20 as follows.
[0030]
That is, as shown in FIG. 5A, the rescue arm 21 is turned by the arm swing motor 21B to a predetermined angle (90 ° in the figure) with respect to the hanging beam 13B, and further as shown in FIG. 5B. The rescue rope 23 is paid out by driving the rescue elevating device 21 as shown in FIG. 6 while swinging left and right within a predetermined angle range. As a result, the tip of the rescue rope 23 (that is, the guide fitting 25) descends while moving up and down along the suspension wire 14, and can reach the gondola cage 15 without being wound around the suspension wire 14. In FIG. 5B, the hanging beam 13B in a state of swinging corresponding to the building is shown by a solid line.
[0031]
The revolving angle of the rescue arm 21 with respect to the hanging beam 13B is set in consideration of the wind direction at the time of the descent so that the rescue rope 23 descending does not approach the hanging wire 14 even if it is swept away by the wind. Further, the swing angle range when the rescue rope 23 descends is set so that the tip movement amount sufficient to prevent winding without interfering with the suspension wire 14 is obtained (for example, ± 22.5 ° = 45 around the set turning position).゜).
[0032]
When the rescue rope 23 reaches the gondola cage 15, the swing of the rescue arm 21 is stopped, and the worker on board removes the rescue rope 23 from the guide fitting 25 and is connected to the lifting belt of the worker or the other worker 3. As shown in the front view in FIG. 7 (A) and the side view in FIG. 7 (B), it is suspended by driving of the rescue lifting device 21 so that it is closer to the rooftop or the ground (or the rooftop or the ground side). Evacuation site). In the case where the rescue rope 23 is lowered to the ground side during the hanging movement, the swing position of the hanging beam 13B is set as necessary so that the rescue rope 23 does not interfere with the gondola cage 15. Further, the rescued worker 3 fits the guide shoe 3A connected to the lifting belt into the guide groove 1B of the building 1 to prevent swing.
[0033]
The above configuration example applies the rescue device of the present invention to a gondola device configured to raise and lower a gondola cage by winding and unwinding a suspension wire by a lifting device provided in a machine room on a roof. The present invention is not limited to this, and may be applied to a gondola device having a configuration in which a winder arranged in a gondola cage is engaged with a suspending wire hanging from an upper part of a building, and the winder is moved up and down by driving the winder. is there. Also, the lifting device of the rescue lifting device may be configured not to wind the rescue rope around the drum but to use a winder.
[0034]
【The invention's effect】
As described above, according to the worker rescue method of the gondola device according to the present invention, the rescue rope member whose tip is guided by the hanging rope member is reciprocated horizontally from the upper part of the building by a predetermined distance. The rescue rope member reciprocates at the time of being extended by lowering along the hanging rope member to reach the work floor, and using the rescue rope to rescue the worker boarding the work floor. Because the tip part descends while moving up and down along the hanging rope member, it reaches the work floor without winding around the hanging rope member due to twisting and wind due to winding habit, enabling smooth and quick rescue. is there.
[0035]
In addition, the worker rescue device in the gondola device includes a rescue arm member pivotally supported by a suspension mechanism within a predetermined angle range, arm swing driving means for swingably driving the rescue arm member, and a suspension at the tip. A rescue rope member provided with a guide portion movable along the lowering rope member and routed along the rescue arm member, and a rescue rope driving means for moving and driving the rescue rope, the hanging rope member being suspended by the guide member The rescue rope member moving along the rescue arm member is swung out by the rescue rope drive means while being swung by the swing drive means, lowered to the work floor, and the worker boarding the work floor using the rescue rope is moved by the rescue rope member. By rescuing, the rescue rope member descends while swinging the rescue arm member so that the guide member at the tip moves up and down along the hanging rope member. Reach up to the work floor without having to wrap around the rope member suspended by a twist and wind by the curl in order, one in which it smooth and quick rescue is possible.
[Brief description of the drawings]
FIG. 1 is a side view showing an entire gondola device including a configuration example of a worker rescue device to which a worker rescue method in a gondola device according to the present invention is applied.
FIG. 2A is an enlarged view of a suspended head portion, and FIG. 2B is a plan view of a base end portion of an arm.
FIG. 3 is a plan view of a suspension head.
FIG. 4 is a conceptual diagram of a suspension wire routing path when the suspension head is viewed from the front side.
FIG. 5 is a plan view illustrating the operation of the rescue device.
FIG. 6 is an explanatory diagram of a rescue procedure.
FIG. 7 is an explanatory diagram of a rescue procedure.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Building 10 Gondola device 13 Hanging head (hanging mechanism)
14 Suspension wire (suspension rope member)
15 Gondola cage (work floor)
20 Worker rescue device 21 Rescue arm (rescue arm member)
22 Rescue lifting device (rescue rope driving means)
23 Rescue rope (rescue rope member)
24 Arm swing motor (Arm swing drive means)
25 Guide fittings (guide section)

Claims (2)

  1. 建築物の上部に配設された吊り下げ機構から垂下された吊り下げロープ部材によって作業床を昇降可能に吊り下げ支持して成るゴンドラ装置において、緊急時に前記作業床に搭乗した作業員を救出する方法であって、
    建築物の上部から、先端部が前記吊り下げロープ部材に案内される救助ロープ部材を、水平方向に所定距離往復移動させつつ繰り出して、前記吊り下げロープ部材に沿って降下させて作業床に至らせ、該救助ロープを用いて作業床に搭乗した作業員を救出することを特徴とするゴンドラ装置における作業員救助方法。
    In a gondola device in which a work floor is suspended and supported so as to be able to ascend and descend by a suspension rope member suspended from a suspension mechanism disposed at the top of a building, an emergency rescue of a worker boarding the work floor is performed. The method,
    From the top of the building, the rescue rope member, the tip of which is guided by the hanging rope member, is fed out while reciprocating a predetermined distance in the horizontal direction, and is lowered along the hanging rope member to reach the work floor. And rescuing a worker on a work floor using the rescue rope.
  2. 建築物の上部に配設された吊り下げ機構から垂下された吊り下げロープ部材によって作業床を昇降可能に吊り下げ支持して成るゴンドラ装置において、
    前記吊り下げ機構に所定角度範囲で揺動可能に枢支された救助アーム部材と、
    前記救助アーム部材を揺動駆動するアーム揺動駆動手段と、
    先端に前記吊り下げロープ部材に沿って移動可能な案内部を備え前記救助アーム部材に沿って配索された救助ロープ部材と、
    前記救助ロープを移動駆動する救助ロープ駆動手段と、を備え、
    前記案内部材によって前記吊り下げロープ部材に沿って移動する前記救助ロープ部材を、前記救助アーム部材を前記揺動駆動手段によって揺動させつつ前記救助ロープ駆動手段によって繰り出して前記作業床に降下させ、該救助ロープを用いて前記作業床に搭乗した作業員を救出することを特徴とするゴンドラ装置における作業員救助装置。
    In a gondola device configured to suspend and support a work floor so as to be able to ascend and descend by a suspending rope member suspended from a suspending mechanism disposed at an upper part of a building,
    A rescue arm member pivotally supported by the suspension mechanism so as to be swingable within a predetermined angle range,
    Arm swing driving means for swing driving the rescue arm member,
    A rescue rope member provided with a guide portion movable along the hanging rope member at the tip and arranged along the rescue arm member,
    Rescue rope driving means for moving and driving the rescue rope,
    The rescue rope member that moves along the hanging rope member by the guide member, is lowered by the rescue rope drive unit while being swung by the rescue arm drive unit by the rescue rope drive unit, and is lowered to the work floor. A worker rescue device in a gondola device, wherein the worker on the work floor is rescued using the rescue rope.
JP2002309468A 2002-10-24 2002-10-24 Worker rescue method and apparatus in gondola device Active JP3790210B2 (en)

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JP2002309468A JP3790210B2 (en) 2002-10-24 2002-10-24 Worker rescue method and apparatus in gondola device
CNA03130723XA CN1492118A (en) 2002-10-24 2003-05-07 Life saving method and device for working personel in suspension cabin device

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JP3790210B2 JP3790210B2 (en) 2006-06-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008156869A (en) * 2006-12-22 2008-07-10 Sumitomo Mitsui Construction Co Ltd Gondola stopper

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008156869A (en) * 2006-12-22 2008-07-10 Sumitomo Mitsui Construction Co Ltd Gondola stopper

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JP3790210B2 (en) 2006-06-28
CN1492118A (en) 2004-04-28

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