JP2004346693A

JP2004346693A - Demolishing implement for temporary construction material

Info

Publication number: JP2004346693A
Application number: JP2003147573A
Authority: JP
Inventors: Tadashi Sekiyama; 正関山
Original assignee: Nikken Lease Kogyo Co Ltd
Current assignee: Nikken Lease Kogyo Co Ltd
Priority date: 2003-05-26
Filing date: 2003-05-26
Publication date: 2004-12-09
Anticipated expiration: 2023-05-26
Also published as: JP3731822B2

Abstract

<P>PROBLEM TO BE SOLVED: To efficiently and safely demolish temporary construction materials in a construction work. <P>SOLUTION: The demolishing implement is provided with an operating rod 2 and a releasing tool 3 loosening a connection means connecting a handrail frame D for fall prevention formed together in a scaffold. The operating rod 2 is constituted of an operating base rod 2a and an adjusting rod 2b retractably provided against the operating base rod 2a. A retaining means 4 for holding the adjusting rod 2b in a required adjusting position against the operating base rod 2a is provided. By screwing a nut member 6 constituting the retaining means 4 to the base end 5a of a fastening end member 5 side, a pressing inner wall 9 of the nut member 6 side pushes in the pressing part 5b of the fastening end member 5 side and the pressing part 5b is deformed shrinkably in diameter to come into pressure contact with the adjusting rod 2b and retain the adjusting rod 2b at a required position. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、例えば、建設工事の際の仮設資材の解体を、能率的、且つ安全に行えるようにした、仮設資材用解体治具に関するものである。
【０００２】
【従来の技術】
現在、土木建設工事、修繕工事の際、施工構築物に使用される仮設資材のうち、施工者の足場は、主として所定の規格化されたユニット（建枠、布枠、ブレース等）により、施工構築物周囲に、複数列、複数段に組み上げて構成している。また、このような足場の解体は、上段から下段まで作業者の手によって、一段、一段建枠や布枠を取り外すことで行われていくため、作業者の転落防止のために、手摺枠を配置するようにしている（特開２００３−１２００１８号公報）。
この場合、手摺枠は、建枠に沿わせて設置された、互いに隣接する支柱パイプ間に、支柱パイプ側に設けた連結手段により、前記手摺枠を簡単に嵌め込む一方、脱落しないように結合する構成としている。
【０００３】
【発明が解決しようとする課題】
しかしながら、このような取り付け方で前記手摺枠を取り付けるため、手摺枠の取り付け作業は容易ではあるが、撤去の際は、上記支柱パイプ側に設けた連結手段を、一つ一つ手で解除操作して、手摺枠を取り外さなくてはならない。その際、作業者は、取り外す手摺枠における足場にいて解除操作を行うため、転落のおそれがあった。
そこで、前記取り外す手摺枠より一段下の、転落するおそれのない足場にいて、当該上段の手摺枠の取り外し作業をすれば、安全に作業を遂行できるであろうという観点に至り、そのための道具を案出することとなった。
本発明は、以上のような背景から提案されたものであって、建設工事の際の仮設資材の解体を、能率的、且つ安全に行えるようにした、仮設資材用解体治具を提供することを目的とする。
【０００４】
【課題を解決するための手段】
前記した課題を解決するために、本発明では、請求項１において、パイプ材で構成した操作杆と、この操作杆先端側に傾斜構成したロック解除具とを有し、このロック解除具は足場における仮設資材をロック保持する連結手段に係合可能に構成し、前記操作杆は、操作基杆と、この操作基杆に対し、格納引き出し可能に設けた調節杆とによって構成して、この調節杆を前記操作基杆に対し、所望調節位置に保持するための拘束手段を備え、前記ロック解除具を、仮設資材をロック保持する連結手段に係合した状態で、前記操作杆を変位操作することで、前記連結手段のロックを解除して、前記仮設資材を取り外すようにした仮設資材用解体治具を提案する。
また本発明では、請求項２において、前記拘束手段は、前記操作基杆先端の開口端に嵌着した締付端部材と、この締付端部材を縮径的に締め付けることで前記調節杆を任意の調節位置で拘束するナット部材とで構成した仮設資材用解体治具を提案する。
また本発明では、請求項３において、前記拘束手段は、前記操作基杆先端側に設けて、前記調節杆を任意の調節位置で締め付け保持するクランプ手段によって構成した仮設資材用解体治具を提案する。
また本発明では、請求項４において、前記ロック解除具は、前記連結手段に嵌入可能な中空パイプ材で構成し、前記操作杆に対して鈍角をなすように操作杆に設けた仮設資材用解体治具を提案する。
また本発明では、請求項５において、前記ロック解除具は、前記調節杆と一体構成とした仮設資材用解体治具を提案する。
また本発明では、請求項６において、前記ロック解除具の中間に、携帯用フックロッドを突設した仮設資材用解体治具を提案する。
また本発明では、請求項７において、前記操作基杆に、落下防止用ロープを連結する連結具を設けた仮設資材用解体治具を提案する。
また本発明では、請求項８において、前記操作杆を構成する操作基杆および調節杆とロック解除具とを合成樹脂管で構成した仮設資材用解体治具を提案する。また本発明では、請求項９において、前記操作杆は、断面円形パイプ材によって構成した仮設資材用解体治具を提案する。
また本発明では、請求項１０において、前記操作杆は、断面非円形パイプ材によって構成した仮設資材用解体治具を提案する。
さらに本発明では、請求項１１において、前記操作杆は、断面角形パイプ材によって構成した仮設資材用解体治具を提案する。
【０００５】
請求項１によれば、作業者は、使用状況に応じて、操作基杆に対し、調節杆を格納した状態で、調節杆先端側のロック解除具を連結手段に係合して解除操作したり、操作基杆から調節杆を引き出して、拘束手段により固定した状態で、仮設資材の解除操作が可能である。
【０００６】
請求項２によれば、調節杆を操作基杆から引き出し、所望の引き出し位置にて、ナット部材を、前記操作基杆先端の開口端における締付端部材にねじ込むことで、この締付端部材が縮径的に締め付けられ、前記調節杆を所望の位置で拘束することができる。
【０００７】
請求項３によれば、調節杆を操作基杆から引き出し、所望の引き出し位置にて、操作基杆先端側のクランプ手段を締め付け操作することで、前記調節杆を拘束することができる。
【０００８】
請求項４によれば、操作杆先端側のロック解除具における開口端を、連結手段に係合して前記操作杆の手元側を押し込むことで連結手段のロック解除がなされる。
【０００９】
請求項５によれば、ロック解除具は、調節杆と一体であるので、部品点数が減り、工程数も軽減することから、安価に製造することができ、強度上も問題はない。
【００１０】
請求項６によれば、解体作業にするにあたり、解体治具を作業服の腰のベルト部分にフックロッドを引っ掛けた状態で足場を移動して、解体箇所に移動することができる。
【００１１】
請求項７によれば、移動中に、解体治具が作業服の腰のベルト部分からフックロッドから外れても、落下を防止することができる。
【００１２】
請求項８によれば、前記操作杆を構成する操作基杆および調節杆とロック解除具とを合成樹脂管で構成することで、製造は容易であり、軽量でしかも強度上も問題はない。
【００１３】
請求項９によれば、操作杆を断面円形パイプ材によって構成することで、比較的肉薄のパイプ素材を用いても強度を確保することができ、軽量化に寄与することができる。
【００１４】
請求項１０によれば、操作杆を断面非円形パイプ材によって構成することで、操作基杆に対し、調節杆が軸廻りに回動することなく、調節杆の出し入れ調節が容易である。
【００１５】
請求項１１によれば、操作杆を断面角形パイプ材で構成したことで、握りやすく解除操作しやすい。
【００１６】
【発明の実施の形態】
以下、本発明にかかる仮設資材用解体治具につき、一つの実施の形態を示し、添付の図面に基づいて説明する。
図１、図２に仮設資材用解体治具１を示し、この仮設資材用解体治具１は、断面円形状の操作杆２と、この操作杆２先端側に傾斜構成したロック解除具３とを備えたものである。
このロック解除具３は足場における仮設資材をロック保持する連結手段（後述）に係合可能に構成し、前記連結手段に係合した状態で操作杆２を変位操作することで、前記連結手段のロックを解除するようにしている。
【００１７】
前記解体治具１は、全体を例えばアルミニウム製円筒パイプ材で構成することができる。もちろん、所定の強度があれば、合成樹脂製円筒パイプ材も可能である。
【００１８】
前記操作杆２は、操作基杆２ａと、この操作基杆２ａに対し、格納引き出し可能に設けた調節杆２ｂとによって構成して、この調節杆２ｂを前記操作基杆２ａに対し、所望調節位置に保持するための拘束手段４とを備えている。
この拘束手段４は、図２に示すように、前記操作基杆２ａ先端の開口端に嵌着した締付端部材５と、この締付端部材５を縮径的に締め付けることで前記調節杆２ｂを任意の位置で拘束するナット部材６とで構成している。
【００１９】
ここで、前記拘束手段４についてさらに詳細に説明する。
前記締付端部材５は、内径が前記調節杆２ｂの外径にほぼ等しい寸法を有する。すなわち、締付端部材５は、前記操作基杆２ａ先端の開口端に嵌着した基端部５ａと、テーパー状外形を有して、所定角度ごとにスリットＳを設けた押圧部５ｂとで構成している。前記基端部５ａ外周には、後述するナット部材６を螺着するためのネジ山を形成している。
【００２０】
一方、前記ナット部材６は、外周に多数の条を形成した円筒キャップ状部材であり、中心軸に沿って前記調節杆２ｂを挿通する通孔７を有している。
またナット部材６内側には、前記締付端部材５における基端部５ａおよび押圧部５ｂに対応して、それぞれ螺合部８、押圧内壁９を形成している。またこれら螺合部８、押圧内壁９は前記通孔７に連通している。
前記押圧内壁９は、前記締付端部材５側の押圧部５ｂ外周に当接する内径を有している。
このような構成により、前記ナット部材６を回動操作して、ナット部材６の螺合部８を、前記締付端部材５側の基端部５ａに螺入していくことで、押圧内壁９が前記締付端部材５側の押圧部５ｂのテーパー外周の径の大なる方へ移動して、前記押圧部５ｂが、複数のスリットＳの存在により縮径的に変形して、挿通した調節杆２ｂを圧接し、前記調節杆２ｂを所望の位置で拘束するようにしている（図３参照）。
【００２１】
そして、前記調節杆２ｂ先端側のロック解除具３は、所定長さの中空パイプ材で構成し（図４参照）、前記調節杆２ｂに対して１２０度程度の鈍角で溶着している。この場合、ロック解除具３の内径は、後述する手摺枠を結合する連結手段に対応して嵌入可能に設定している。
また前記ロック解除具３の中間には、携帯用フックロッド１０を突設している。このフックロッド１０は、適宜な軸部材を用いて構成し、中間から先端にかけて、前記調節杆２ｂに略平行になるように屈曲させている。これによって、前記フックロッド１０は、作業服の腰ベルト等に引っ掛けやすく、前記解体治具１に携帯性をもたらしている（図５参照）。
【００２２】
さらに前記操作杆２のうちの操作基杆２ａには、作業服の腰ベルト等に設けた落下防止用ロープＬを連結する連結リング１１を設けている。
【００２３】
ここで、仮設資材による足場Ｆについて説明する。
足場Ｆは、図６に示すように、建枠Ａ、布枠Ｂ、３角枠Ｃ等により、施工構築物周囲に、複数列、複数段に組み上げて構成しており、さらに、転落防止用の手摺枠Ｄを設けている。この手摺枠Ｄは、建枠Ａに沿って設けた連結手段１２によって取り付けている（図７参照）。
【００２４】
前記連結手段１２は、建枠Ａに突設した突部１３に、ばね部材によって突出する側に付勢したロック手段１４を設けて構成している。この突部１３を、手摺枠Ｄの四隅に設けた受具１５の係止穴ｈに挿通することで、前記ロック手段１４を前記突部１３の径方向に突出させて、手摺枠Ｄを、受具１５を介して脱落しないように保持するようにしている。
【００２５】
このような連結手段１２における突部１３のロック手段１４は、前記ロック解除具３先端の開口端からロック解除具３内面に嵌入させて、ロック解除具３を変位させることで、ロック解除具３内壁により、突部１３内にロック手段１４をばね力に抗して押し込むことでロック解除し、前記手摺枠Ｄを手摺枠Ｄの四隅に設けた受具１５を突部１３から離脱させて、取り外す構成である。
【００２６】
本発明にかかる仮設資材用解体治具１は、以上のように構成されるものであり、次に仮設資材用解体治具１による足場Ｆ、手摺枠Ｄの解体手順を説明する。
土木工事、建築工事、修繕工事等が終了し、施工構築物に使用されている仮設資材は、最上部から順に外していくようにする。そのために、作業者は、足場Ｆを伝って最上部まで上っていき、建枠Ａ、布枠Ｂ、３角枠Ｃを一つ一つ、外していくことになる。この際、作業者は解体治具１を、作業服の腰ベルト等に調節杆２ｂ先端のロック解除具３に設けたフックロッド１０を引っ掛けて携帯することができる。また、操作基杆２ａの連結リング１１に、作業服の腰ベルト等に設けた落下防止用ロープＬを連結すれば解体治具１を落としてしまうようなことはない（図５参照）。
【００２７】
先ず、作業者は、外すべき最上部の足場Ｆにきて、その位置の布枠Ｂに乗り、最上部の足場Ｆを構成する建枠Ａと共に３角枠Ｃを外し、その最上部の足場Ｆの一段下の位置にきて、前記布枠Ｂを外す。
次いで、前記最上部の手摺枠Ｄを外すわけだが、手摺枠Ｄの下側の双方の受具１５における連結手段１２の突部１３のロック手段１４を押し込んでそれぞれ取り外し、再びロックされないように手摺枠Ｄの下側を引き離す（図６、図８参照）。
【００２８】
次に、腰ベルトに引っ掛けた解体治具１を手にとり、調節杆２ｂ先端のロック解除具３が、手摺枠Ｄの上側の受具１５における連結手段１２に届くかどうか確かめる。
前記ロック解除具３が前記手摺枠Ｄの上側の受具１５における連結手段１２に届けばそのまま、前記ロック解除具３先端の開口端に、連結手段１２の突部１３、およびロック手段１４に嵌め入れていき解除操作を開始する（図９参照）。
【００２９】
また、ロック解除具３が、手摺枠Ｄの上側の受具１５における連結手段１２に届かないときは、解体治具１の操作杆２の長さを変える。すなわち、前記ナット部材６を、ナット部材６の螺合部８が、前記締付端部材５側の基端部５ａから離脱するように操作して緩めておき、調節杆２ｂを引っ張って、操作基杆２ａから調節杆２ｂを引き出す。
前記調節杆２ｂが所望の長さに引き出されたところで、前記ナット部材６を操作して、ナット部材６の螺合部８を、前記締付端部材５側の基端部５ａに螺入していく。こうすることによって、ナット部材６の押圧内壁９が前記締付端部材５側の押圧部５ｂのテーパー外周の径の大なる方へ移動するので、前記押圧部５ｂが、複数のスリットＳの存在により縮径的に変形して、挿通した調節杆２ｂを圧接し、前記調節杆２ｂを拘束することができるのである（図３参照）。
斯くて前記操作基杆２ａと調節杆２ｂとは、一つの杆のごとくぐらつくことなく固定される。
【００３０】
以上のように操作杆２の長さを合わせることで、解除操作を行うことができる。前記ロック解除具３先端の開口端に、連結手段１２の突部１３、およびロック手段１４に嵌め入れた状態で、操作杆２の握り箇所側を建枠Ａに向かって押し込むことで、ロック解除具３内壁によって、連結手段１２のロック手段１４がばね力に抗して押し込まれ、これにより前記連結手段１２のロック作用を解除することができ、手摺枠Ｄを建枠Ａから取り外すことができる（図１０、図１１、図８参照）。
そして、もう一方の連結手段１２を同様にして解体治具１により取り外せば、その手摺枠Ｄの解体が完了する。
このようにして、足場Ｆの上部側から順次、取り外しにかかる足場Ｆの一段下の布枠Ｂに乗った状態で、手摺枠Ｄの解体作業を行うことができ、簡単で速やかに、しかも一段下の手摺枠Ｄで囲まれた状態で作業を遂行することができるので、転落のおそれはない。
なお、上記解体治具１は、操作杆２を円形状のアルミニウム等のパイプ素材によって構成しても、強度上も問題なく、軽量であるので、特に上腕に対する負担を軽減し、長時間に亘る作業が可能となる。
【００３１】
本発明にかかる仮設資材用解体治具１は、次のように構成することもできる。この場合の仮設資材用解体治具１では、図１２に示すように、拘束手段４として、周知の構成のクランプ手段を用いている。
このクランプ手段は、操作基杆２ａ先端に固定した基体１６と、この基体１６に、スナップ操作可能なレバー１７とを有している。すなわちこのレバー１７をスナップ操作することで、例えばレバー１７の所定部位が調節杆２ｂに向かって変位して圧接手段に作用し、この圧接手段が前記調節杆２ｂに当接して、前記調節杆２ｂを拘束するようにしている。
【００３２】
以上のような拘束手段４を用いた仮設資材用解体治具１では、拘束手段４の操作はレバー１７をスナップ操作するだけであるから一層簡単であり、作業現場で自在に、操作杆２を、使いやすい長さに調節することができ、解体作業の能率化に寄与することができる。
【００３３】
また、本発明にかかる仮設資材用解体治具１は、図１３に示すように、調節杆２ｂと調節杆２ｂ先端のロック解除具３とを、例えばアルミニウム製円筒パイプ材で一体構成することができる。もちろん、所定の強度があれば、合成樹脂製円筒パイプ材で構成することもできる。
【００３４】
このような仮設資材用解体治具１によれば、調節杆２ｂとロック解除具３とを、同じパイプ材で形成することから、部品点数が減り、工程数も軽減することから、安価に製造することができ、強度上も問題はない。
【００３５】
また、本発明にかかる仮設資材用解体治具１は、操作杆２を、断面非円形状のアルミパイプ素材で構成することもできる。この場合の断面非円形状の例としては、例えば扁平な長円形状、他、適宜な非対称形の閉ループ形状のものがある。
【００３６】
このような仮設資材用解体治具１によれば、拘束手段４として、前述のクランプ手段を採用することができ、しかも操作基杆２ａに対し、調節杆２ｂが軸廻りに回動することなく、調節杆２ｂの出し入れ調節が容易である。
【００３７】
さらに、本発明にかかる仮設資材用解体治具１は、操作杆２を、断面角形形状のアルミパイプ素材で構成することもできる。この場合、角形としては、方形に限らず、適宜な多角形のものも可能である。
【００３８】
操作杆２を断面角形パイプ材で構成したことで、調節杆２ｂが軸廻りに回動することなく、調節杆２ｂの出し入れ調節が容易であり、しかも握りやすく解除操作しやすい。その上、拘束手段４として、前述のクランプ手段を採用することができ、一層、操作しやすいものとなる。
【００３９】
【発明の効果】
以上のとおり、本発明によれば
（１）作業者は、操作杆先端側のロック解除具を、連結手段に係合して前記操作杆を変位操作させることで、前記連結手段のロック作用を解除することができ、足場ユニットを取り外すことができる。
（２）足場の構造に応じて、操作基杆に対し調節杆を出し入れするだけで、操作杆の長さを調節することができ、一層、解体作業が容易となり、能率が向上する。
（３）操作杆先端側のロック解除具における開口部を、連結手段に係合して前記操作杆の手元側を押し込むことで連結手段のロック解除を行うことができ、解体作業が容易となる。
（４）解体作業にするにあたり、解体治具を作業服の腰のベルト部分にフックロッドを引っ掛けた状態で足場を移動して、解体箇所に移動することができる。
（５）移動中に、解体治具が作業服の腰のベルト部分からフックロッドから外れても、落下を防止することができる。
（６）取り外しにかかる足場の一段下の、手摺枠で囲まれた状態の足場において仮設資材の解体作業を行うので、転落のおそれなく作業を遂行することができる。
【００４０】
【図面の簡単な説明】
【図１】本発明にかかる仮設資材用解体治具の一例を示す、外観斜視図である。
【図２】図１に示す仮設資材用解体治具の一側面図である。
【図３】図１に示す仮設資材用解体治具の操作杆を拡張した状態を示す、一側面図である。
【図４】図１に示す仮設資材用解体治具を別方向から見た、外観斜視図である。
【図５】本発明にかかる仮設資材用解体治具のフックロッドを、作業服の腰ベルト等に引っ掛け、落下防止用ロープを連結したところを示す説明図である。
【図６】足場において解体作業をする際の説明図である。
【図７】足場に敷設された手摺枠の保持構造を示した要部説明図である。
【図８】足場に敷設された手摺枠の解体作業の説明図である。
【図９】足場に敷設された手摺枠の上部側を、仮設資材用解体治具を用いて解体する際の説明図である。
【図１０】仮設資材用解体治具におけるロック解除具を、連結手段に係合したところを示す要部断面説明図である。
【図１１】仮設資材用解体治具におけるロック解除具を、連結手段に係合して操作杆を変位操作させるところを示す要部断面説明図である。
【図１２】本発明にかかる仮設資材用解体治具の別例を示す、外観斜視図である。
【図１３】本発明にかかる仮設資材用解体治具の別例を示す、要部外観斜視図である。
【符号の説明】
１仮設資材用解体治具
２操作杆
２ａ操作基杆
２ｂ調節杆
３ロック解除具
４拘束手段
５締付端部材
５ａ基端部
５ｂ押圧部
６ナット部材
７通孔
８螺合部
９押圧内壁
１０携帯用フックロッド
１１連結リング
１２連結手段
１３突部
１４ロック手段
１５受具
１６基体
１７レバー
Ｓスリット
Ｌ落下防止用ロープ
Ｆ足場
Ａ建枠
Ｂ布枠
Ｃ３角枠
Ｄ手摺枠
ｈ係止穴[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a temporary material dismantling jig capable of efficiently and safely dismantling temporary materials at the time of construction work, for example.
[0002]
[Prior art]
Currently, of the temporary materials used in construction works during civil engineering work and repair work, the scaffolding of the constructor is mainly based on specified standardized units (building frames, cloth frames, braces, etc.). It is built around a plurality of rows and a plurality of stages. In addition, since such scaffolds are dismantled by removing the one-step, one-step building frames and cloth frames by the hands of the workers from the top to the bottom, the handrail frames are used to prevent the workers from falling down. They are arranged (Japanese Patent Laid-Open No. 2003-120018).
In this case, the handrail frame is easily fitted into the handrail frame between connecting pipes adjacent to each other, which is installed along the building frame, and is connected so as not to fall off by connecting means provided on the side of the support pipe. Configuration.
[0003]
[Problems to be solved by the invention]
However, since the handrail frame is attached in this manner, the handrail frame can be easily attached.However, when removing the handrail frame, the connecting means provided on the support pipe side is manually released one by one. Then the railing frame must be removed. At this time, since the worker performs the release operation on the scaffold of the handrail frame to be removed, there is a risk of falling.
Therefore, on a scaffold that is one step below the handrail frame to be removed and is not likely to fall down, if the work of removing the upper handrail frame is performed, it is possible to perform the work safely. It was decided.
The present invention has been proposed in view of the above background, and provides a dismantling jig for a temporary material, which is capable of efficiently and safely disassembling the temporary material during construction work. With the goal.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, according to the present invention, in claim 1, there is provided an operating rod formed of a pipe material, and a lock releasing tool inclined at a tip end side of the operating rod, and the lock releasing tool is a scaffold. The operation rod is constituted by an operation base rod and an adjustment rod provided so as to be retractable and retractable with respect to the operation base rod. Constraining means for holding the rod at a desired adjustment position with respect to the operation base rod is provided, and the operation rod is displaced while the lock release tool is engaged with the connecting means for locking and holding the temporary material. This proposes a temporary material dismantling jig in which the lock of the connecting means is released and the temporary material is removed.
According to the present invention, in the second aspect, the restraining means includes a tightening end member fitted to an open end of the distal end of the operating base rod, and the adjusting rod being tightened by reducing the diameter of the tightening end member. We propose a dismantling jig for temporary material composed of a nut member constrained at an arbitrary adjustment position.
Further, in the present invention, a dismantling jig for a temporary material is proposed in claim 3, wherein the restraining means is provided on a tip end side of the operation base rod, and is constituted by a clamp means for tightening and holding the adjusting rod at an arbitrary adjusting position. I do.
Further, in the present invention, the disassembly for a temporary material according to claim 4, wherein the unlocking tool is formed of a hollow pipe material that can be fitted into the connecting means, and is provided on the operating rod so as to form an obtuse angle with the operating rod. Suggest a jig.
According to the present invention, there is provided a dismantling jig for a temporary material, wherein the unlocking tool is integrated with the adjusting rod.
According to the present invention, there is provided a dismantling jig for a temporary material in which a portable hook rod is provided in the middle of the unlocking tool.
According to the present invention, there is provided a dismantling jig for a temporary material in which a connecting tool for connecting a fall prevention rope is provided to the operating base rod.
According to the present invention, there is provided a dismantling jig for a temporary material in which an operating base rod, an adjusting rod, and an unlocking tool, which constitute the operating rod, are formed of a synthetic resin tube. According to the present invention, there is provided a dismantling jig for a temporary material in which the operating rod is formed of a pipe having a circular cross section.
According to the present invention, there is provided a dismantling jig for a temporary material in which the operating rod is formed of a pipe material having a non-circular cross section.
Further, in the present invention, in claim 11, a dismantling jig for a temporary material in which the operating rod is formed of a pipe material having a rectangular cross section is proposed.
[0005]
According to the first aspect, the operator engages the unlocking tool on the distal end of the adjusting rod with the connecting means to release the operating rod in a state in which the adjusting rod is retracted in accordance with the use condition. Alternatively, it is possible to release the temporary material in a state where the adjusting rod is pulled out from the operating base rod and fixed by the restraining means.
[0006]
According to the second aspect, the adjusting rod is pulled out from the operating base rod, and at a desired withdrawn position, the nut member is screwed into the tightening end member at the open end of the distal end of the operating base rod to thereby provide the tightening end member. Are tightened in a reduced diameter, and the adjusting rod can be restrained at a desired position.
[0007]
According to the third aspect, the adjusting rod can be restrained by pulling out the adjusting rod from the operating base rod and tightening the clamp means on the distal end side of the operating base rod at a desired withdrawn position.
[0008]
According to the fourth aspect, the open end of the unlocking tool on the distal end side of the operating rod is engaged with the connecting means and the hand side of the operating rod is pushed in, thereby unlocking the connecting means.
[0009]
According to the fifth aspect, since the lock release tool is integrated with the adjusting rod, the number of parts is reduced and the number of steps is reduced, so that the lock release tool can be manufactured at low cost and there is no problem in strength.
[0010]
According to the sixth aspect, in performing the dismantling work, the scaffold can be moved in a state where the disassembling jig is hooked on the waist belt portion of the work clothes and moved to the dismantling position.
[0011]
According to the seventh aspect, it is possible to prevent the dismantling jig from falling even if the dismantling jig comes off the hook rod from the waist belt portion of the work clothes.
[0012]
According to the eighth aspect, since the operating base rod, the adjusting rod, and the unlocking tool that constitute the operating rod are made of a synthetic resin tube, manufacture is easy, light weight, and there is no problem in strength.
[0013]
According to the ninth aspect, since the operating rod is formed of a pipe material having a circular cross section, the strength can be secured even when a relatively thin pipe material is used, and it is possible to contribute to weight reduction.
[0014]
According to the tenth aspect, since the operating rod is formed of a pipe material having a non-circular cross section, the adjusting rod can be easily adjusted in and out of the operating base rod without the adjusting rod rotating around the axis.
[0015]
According to the eleventh aspect, the operating rod is made of a pipe material having a rectangular cross section, so that it is easy to grasp and release operation.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a disassembly jig for temporary materials according to the present invention will be described with reference to the accompanying drawings, showing one embodiment.
1 and 2 show a dismantling jig 1 for a temporary material. The dismantling jig 1 for a temporary material includes an operating rod 2 having a circular cross section, and a lock releasing tool 3 inclined to the tip of the operating rod 2. It is provided with.
This unlocking tool 3 is configured to be engageable with a connecting means (described later) for locking and holding the temporary material on the scaffold, and by displacing the operating rod 2 in a state of being engaged with the connecting means, the lock releasing tool 3 is connected to the connecting means. The lock is released.
[0017]
The dismantling jig 1 can be entirely made of, for example, an aluminum cylindrical pipe material. Of course, a synthetic resin cylindrical pipe material is also possible if it has a predetermined strength.
[0018]
The operating rod 2 is composed of an operating base rod 2a and an adjusting rod 2b provided to be retractable with respect to the operating base rod 2a. Restraint means 4 for holding the position.
As shown in FIG. 2, the restricting means 4 includes a tightening end member 5 fitted to the open end of the tip of the operating base rod 2a, and the adjusting rod by tightening the tightening end member 5 in a reduced diameter. 2b is constituted by a nut member 6 that restrains the member 2b at an arbitrary position.
[0019]
Here, the restraining means 4 will be described in more detail.
The fastening end member 5 has a size whose inner diameter is substantially equal to the outer diameter of the adjusting rod 2b. That is, the fastening end member 5 includes a base end portion 5a fitted to the opening end of the distal end of the operation base rod 2a and a pressing portion 5b having a tapered outer shape and provided with slits S at predetermined angles. Make up. A thread for screwing a nut member 6 described later is formed on the outer periphery of the base end portion 5a.
[0020]
On the other hand, the nut member 6 is a cylindrical cap-shaped member having a large number of strips formed on the outer periphery, and has a through hole 7 through which the adjusting rod 2b is inserted along a central axis.
A screwing portion 8 and a pressing inner wall 9 are formed inside the nut member 6 corresponding to the base end portion 5a and the pressing portion 5b of the tightening end member 5, respectively. The threaded portion 8 and the pressing inner wall 9 communicate with the through hole 7.
The pressing inner wall 9 has an inner diameter that comes into contact with the outer periphery of the pressing portion 5b on the fastening end member 5 side.
With such a configuration, the nut member 6 is rotated and the screwing portion 8 of the nut member 6 is screwed into the base end portion 5a on the fastening end member 5 side, so that the pressing inner wall is formed. 9 moves to the larger diameter of the outer periphery of the taper of the pressing portion 5b on the side of the tightening end member 5, and the pressing portion 5b is deformed in a reduced diameter due to the presence of the plurality of slits S and inserted. The adjusting rod 2b is pressed into contact with the adjusting rod 2b at a desired position (see FIG. 3).
[0021]
The unlocking member 3 at the tip of the adjusting rod 2b is formed of a hollow pipe material having a predetermined length (see FIG. 4), and is welded to the adjusting rod 2b at an obtuse angle of about 120 degrees. In this case, the inner diameter of the unlocking tool 3 is set to be fittable in accordance with a connecting means for connecting a handrail frame described later.
A portable hook rod 10 is provided in the middle of the unlocking tool 3. The hook rod 10 is formed using an appropriate shaft member, and is bent from the middle to the tip so as to be substantially parallel to the adjusting rod 2b. Thereby, the hook rod 10 is easily hooked on the waist belt of the work clothes and the like, and the dismantling jig 1 is provided with portability (see FIG. 5).
[0022]
Further, the operation base rod 2a of the operation rod 2 is provided with a connection ring 11 for connecting a drop prevention rope L provided on a waist belt of work clothes or the like.
[0023]
Here, the scaffold F using the temporary material will be described.
As shown in FIG. 6, the scaffold F is constructed by assembling a plurality of rows and a plurality of steps around the construction structure by using a building frame A, a cloth frame B, a triangular frame C, and the like. A handrail frame D is provided. The handrail frame D is attached by connecting means 12 provided along the building frame A (see FIG. 7).
[0024]
The connecting means 12 is configured by providing a locking means 14 urged to a side protruding by a spring member on a protruding portion 13 protruding from the building frame A. By inserting the projections 13 into the locking holes h of the receiving members 15 provided at the four corners of the handrail frame D, the locking means 14 is projected in the radial direction of the projection 13 so that the handrail frame D It is held so as not to fall off via the receiving tool 15.
[0025]
The locking means 14 of the protrusion 13 in the connecting means 12 is fitted into the inner surface of the unlocking tool 3 from the opening end of the tip of the unlocking tool 3 and displaces the unlocking tool 3, whereby the unlocking tool 3 is displaced. The lock is released by pushing the locking means 14 into the projection 13 against the spring force by the inner wall, and the handrail frame D is detached from the projection 13 by the receiving members 15 provided at the four corners of the handrail frame D, It is a configuration to remove.
[0026]
The temporary material dismantling jig 1 according to the present invention is configured as described above. Next, a procedure for dismantling the scaffold F and the handrail frame D by the temporary material dismantling jig 1 will be described.
After civil engineering work, building work, repair work, etc. are completed, temporary materials used for construction structures will be removed in order from the top. Therefore, the worker goes up to the top along the scaffold F, and removes the building frame A, the cloth frame B, and the triangular frame C one by one. At this time, the worker can carry the dismantling jig 1 by hooking the hook rod 10 provided on the unlocking tool 3 at the tip of the adjusting rod 2b on the waist belt of the work clothes or the like. Further, if the drop prevention rope L provided on the waist belt or the like of the work clothes is connected to the connection ring 11 of the operation base rod 2a, the dismantling jig 1 does not drop (see FIG. 5).
[0027]
First, the worker arrives at the uppermost scaffold F to be removed, rides on the cloth frame B at that position, removes the triangular frame C together with the building frame A constituting the uppermost scaffold F, and places the uppermost scaffold. Come to the position one step below F and remove the cloth frame B.
Next, the uppermost handrail frame D is removed, but the locking means 14 of the protrusion 13 of the connecting means 12 in both the receiving members 15 on the lower side of the handrail frame D are pushed in and removed, and the handrail is prevented from being locked again. The lower side of the frame D is separated (see FIGS. 6 and 8).
[0028]
Next, the user takes the dismantling jig 1 hooked on the waist belt and checks whether the unlocking tool 3 at the tip of the adjusting rod 2b reaches the connecting means 12 of the receiving tool 15 on the upper side of the handrail frame D.
When the unlocking tool 3 reaches the connecting means 12 of the receiving tool 15 on the upper side of the handrail frame D, the lock releasing tool 3 is fitted to the projection 13 of the connecting means 12 and the locking means 14 at the opening end at the tip of the unlocking tool 3. The insertion release operation is started (see FIG. 9).
[0029]
When the unlocking tool 3 does not reach the connecting means 12 of the receiving tool 15 above the handrail frame D, the length of the operating rod 2 of the dismantling jig 1 is changed. That is, the nut member 6 is operated and loosened so that the screwing portion 8 of the nut member 6 is separated from the base end portion 5a on the tightening end member 5 side, and the adjusting rod 2b is pulled to operate. The adjusting rod 2b is pulled out from the base rod 2a.
When the adjusting rod 2b is pulled out to a desired length, the nut member 6 is operated to screw the threaded portion 8 of the nut member 6 into the base end portion 5a on the tightening end member 5 side. To go. By doing so, the pressing inner wall 9 of the nut member 6 moves to the larger diameter of the outer periphery of the taper of the pressing portion 5b on the side of the tightening end member 5, so that the pressing portion 5b has a plurality of slits S. As a result, the adjusting rod 2b can be pressed against the inserted adjusting rod 2b to restrict the adjusting rod 2b (see FIG. 3).
Thus, the operation base rod 2a and the adjustment rod 2b are fixed without shaking like a single rod.
[0030]
The release operation can be performed by adjusting the length of the operation rod 2 as described above. The lock is released by pushing the gripping portion side of the operating rod 2 toward the building frame A in a state where it is fitted into the projection 13 of the connecting means 12 and the locking means 14 at the opening end of the unlocking tool 3. The locking means 14 of the connecting means 12 is pushed in against the spring force by the inner wall of the tool 3, whereby the locking action of the connecting means 12 can be released, and the handrail frame D can be removed from the building frame A. (See FIGS. 10, 11, and 8).
When the other connecting means 12 is removed by the dismantling jig 1 in the same manner, the dismantling of the handrail frame D is completed.
In this manner, the handrail frame D can be dismantled in a state where the handrail frame D is placed one step below the scaffold F to be removed sequentially from the upper side of the scaffold F. Since the work can be performed in a state surrounded by the lower handrail frame D, there is no possibility of falling.
The dismantling jig 1 has a light weight without any problem in strength even if the operating rod 2 is made of a circular pipe material such as aluminum, so that the burden on the upper arm is reduced, and the dismantling jig 1 is used for a long time. Work becomes possible.
[0031]
The dismantling jig 1 for temporary materials according to the present invention can also be configured as follows. In the temporary material dismantling jig 1 in this case, as shown in FIG.
This clamping means has a base 16 fixed to the tip of the operating base rod 2a, and a lever 17 which can be snapped to the base 16. That is, by snap-operating the lever 17, for example, a predetermined portion of the lever 17 is displaced toward the adjusting rod 2b and acts on the pressing means, and the pressing means comes into contact with the adjusting rod 2b and the adjusting rod 2b Is to be restrained.
[0032]
In the temporary material dismantling jig 1 using the above-described restraining means 4, the operation of the restraining means 4 is simpler because the lever 17 is simply snapped, and the operating rod 2 can be freely operated at the work site. It can be adjusted to an easy-to-use length, which can contribute to the efficiency of dismantling work.
[0033]
As shown in FIG. 13, the temporary material dismantling jig 1 according to the present invention may be configured such that the adjusting rod 2b and the unlocking tool 3 at the tip of the adjusting rod 2b are integrally formed of, for example, an aluminum cylindrical pipe material. it can. Of course, if it has a predetermined strength, it can be made of a synthetic resin cylindrical pipe material.
[0034]
According to such a temporary material dismantling jig 1, since the adjusting rod 2b and the lock releasing tool 3 are formed of the same pipe material, the number of parts is reduced and the number of steps is reduced, so that the manufacturing cost is reduced. And there is no problem in strength.
[0035]
In the jig 1 for temporary materials according to the present invention, the operating rod 2 may be made of an aluminum pipe material having a non-circular cross section. Examples of the non-circular cross section in this case include, for example, a flat elliptical shape and an appropriate asymmetric closed loop shape.
[0036]
According to such a temporary material dismantling jig 1, the above-mentioned clamping means can be adopted as the restraining means 4, and the adjusting rod 2b does not rotate around the axis with respect to the operating base rod 2a. The adjustment of the adjusting rod 2b can be easily performed.
[0037]
Furthermore, in the temporary material dismantling jig 1 according to the present invention, the operating rod 2 may be made of an aluminum pipe material having a rectangular cross section. In this case, the square is not limited to a square, but may be an appropriate polygon.
[0038]
Since the operating rod 2 is formed of a pipe having a rectangular cross section, the adjusting rod 2b can be easily adjusted in and out without rotating the adjusting rod 2b around an axis, and can be easily gripped and released. In addition, the above-mentioned clamping means can be adopted as the restraining means 4, which makes the operation easier.
[0039]
【The invention's effect】
As described above, according to the present invention, (1) the worker disengages the operating rod by engaging the unlocking tool at the distal end of the operating rod with the connecting means, thereby enabling the locking action of the connecting means. Can be released and the scaffold unit can be removed.
(2) The length of the operating rod can be adjusted simply by moving the adjusting rod in and out of the operating base rod in accordance with the structure of the scaffold, thereby further facilitating dismantling work and improving efficiency.
(3) The lock of the connecting means can be released by engaging the opening of the unlocking tool at the distal end of the operating rod with the connecting means and pushing in the hand side of the operating rod, thereby facilitating dismantling work. .
(4) In the dismantling work, the scaffold can be moved while the dismantling jig is hooked on the waist belt portion of the work clothes and moved to the dismantling position.
(5) Even if the dismantling jig comes off the hook rod from the waist belt portion of the work clothes during movement, it can be prevented from dropping.
(6) Since the temporary material is dismantled on a scaffold one step below the scaffold for removal and surrounded by the handrail frame, the work can be performed without fear of falling.
[0040]
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an example of a temporary material dismantling jig according to the present invention.
FIG. 2 is a side view of the temporary material dismantling jig shown in FIG.
FIG. 3 is a side view showing a state in which an operating rod of the temporary material dismantling jig shown in FIG. 1 is expanded.
4 is an external perspective view of the temporary material dismantling jig shown in FIG. 1 as viewed from another direction.
FIG. 5 is an explanatory view showing a state in which a hook rod of the dismantling jig for temporary material according to the present invention is hooked on a waist belt or the like of work clothes and a fall prevention rope is connected.
FIG. 6 is an explanatory view when performing dismantling work on a scaffold.
FIG. 7 is an explanatory view of a main part showing a holding structure of a handrail frame laid on a scaffold.
FIG. 8 is an explanatory diagram of a work of dismantling a handrail frame laid on a scaffold.
FIG. 9 is an explanatory view when the upper side of the handrail frame laid on the scaffold is dismantled using a temporary material dismantling jig.
FIG. 10 is an explanatory sectional view of a main part showing a state where a lock release tool in the dismantling jig for temporary material is engaged with a connecting means.
FIG. 11 is an explanatory sectional view of a main part showing a state where the unlocking tool in the dismantling jig for temporary material is engaged with the connecting means to displace the operating rod.
FIG. 12 is an external perspective view showing another example of the temporary material dismantling jig according to the present invention.
FIG. 13 is an external perspective view of a main part showing another example of a temporary material dismantling jig according to the present invention.
[Explanation of symbols]
Reference Signs List 1 dismantling jig for temporary material 2 operating rod 2a operating base rod 2b adjusting rod 3 unlocking tool 4 restraining means 5 fastening end member 5a base end portion 5b pressing portion 6 nut member 7 through hole 8 screwing portion 9 pressing inner wall 10 Portable hook rod 11 Connecting ring 12 Connecting means 13 Protrusion 14 Locking means 15 Receiver 16 Base 17 Lever S Slit L Fall prevention rope F Scaffold A Building frame B Cloth frame C Triangle frame D Handrail frame h Lock hole

Claims

An operating rod made of a pipe material, and an unlocking tool inclined to the tip of the operating rod, and the unlocking tool is configured to be engageable with connecting means for locking and holding the temporary material on the scaffold; The operating rod is constituted by an operating base rod and an adjusting rod provided so as to be retractable and retractable with respect to the operating base rod, and a constraint for holding the adjusting rod at a desired adjustment position with respect to the operating base rod. Means, and the operating lever is displaced in a state where the unlocking tool is engaged with the connecting means for locking and holding the temporary material, thereby unlocking the connecting means and removing the temporary material. A dismantling jig for temporary materials, characterized in that:

The restricting means includes a tightening end member fitted to the open end of the distal end of the operating base rod, and a nut member for restricting the adjusting rod at an arbitrary adjusting position by tightening the tightening end member in a reduced diameter. The dismantling jig for a temporary material according to claim 1, wherein the jig is constituted by:

The disassembly jig for a temporary material according to claim 1, wherein the restraining means is provided on a tip end side of the operation base rod, and is configured by a clamp means for tightening and holding the adjustment rod at an arbitrary adjustment position.

The disassembly for a temporary material according to claim 1, wherein the unlocking tool is formed of a hollow pipe material that can be fitted into the connecting means, and is provided on the operating rod so as to form an obtuse angle with the operating rod. jig.

The dismantling jig for a temporary material according to claim 1, wherein the lock release tool is integrated with the adjustment rod.

The dismantling jig for a temporary material according to claim 1, wherein a portable hook rod is protruded in the middle of the unlocking tool.

The dismantling jig for a temporary material according to any one of claims 1 to 3, wherein a connecting tool for connecting a fall prevention rope is provided on the operation base rod.

The dismantling jig for a temporary material according to any one of claims 1 to 7, wherein the operation base rod, the adjustment rod, and the lock release tool that constitute the operation rod are formed of a synthetic resin tube.

The dismantling jig for a temporary material according to any one of claims 1 to 8, wherein the operating rod is formed of a pipe material having a circular cross section.

The dismantling jig for a temporary material according to any one of claims 1, 3, 4, 6 and 8, wherein the operating rod is made of a non-circular pipe material.

The dismantling jig for a temporary material according to any one of claims 1, 3, 4, 6 and 8, wherein the operating rod is formed of a pipe material having a rectangular cross section.