JP3731820B2

JP3731820B2 - Temporary material dismantling jig

Info

Publication number: JP3731820B2
Application number: JP2003142387A
Authority: JP
Inventors: 正関山
Original assignee: Nikken Lease Kogyo Co Ltd
Current assignee: Nikken Lease Kogyo Co Ltd
Priority date: 2003-05-20
Filing date: 2003-05-20
Publication date: 2006-01-05
Anticipated expiration: 2023-05-20
Also published as: JP2004346531A

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、仮設資材である建枠と手摺枠とを備え、前記建枠に設けたロック部材を有する突部を手摺枠に設けた受具の係止穴に挿通し、前記ロック部材を弾性力により、前記突部の径方向に突出させ、前記建枠に前記手摺枠を組み付ける連結手段において、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前記突部を装入可能に開口し、ロック解除具の開口端から前記突部を装入させて、前記操作杆を変位操作することで、前記ロック解除具内壁により、突部内にロック部材を弾性力に抗して押し込んで、前記手摺枠の受具を建枠の突部から離脱させて、前記手摺枠を取り外す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２において、前記操作杆は、長さ寸法を調節可能に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、前記操作杆は、第１の操作杆と、この第１操作杆に対し、折り畳み、展開可能に可能に連結した第２の操作杆とによって構成し、この第２操作杆先端側に前記ロック解除具を取り付け、前記第２操作杆を第１操作杆に対し折り畳んだ状態で保持する保持手段と、この保持手段に前記第２操作杆を押し付けることで第２操作杆を第１操作杆に対し展開した状態で固定する押圧手段を備え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、前記保持手段は、第１操作杆の外形にほぼ近い環状体であり、前記第１操作杆に対し第２操作杆を折り畳んだ状態で保持するべく、前記第１操作杆外周に嵌め入れる一方、前記第１操作杆に対し第２操作杆を展開した状態において、前記保持手段を第１操作杆における第２操作杆の軸止箇所近傍に嵌入して、前記押圧手段により前記保持手段に前記第２操作杆を押し付けることで、第２操作杆を第１操作杆に対し展開した状態で固定する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５において、前記押圧手段は、前記第１操作杆における第２操作杆の軸止箇所近傍において、第１操作杆外面から内面に向かって螺入して、前記第２操作杆を押し付けて前記保持手段を脱落しないように押圧する押圧ねじ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６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接続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。
さらに本発明では、請求項８において、前記操作杆に、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。
【０００５】
請求項１によれば、作業者は、操作杆先端側のロック解除具に、ロック解除具の開口端から、足場の建枠と手摺枠とを組み付ける連結手段の突部を装入させて、前記操作杆を変位操作することで、前記ロック解除具内壁により、突部内にロック部材を弾性力に抗して押し込んで、前記手摺枠の受具を建枠の突部から離脱させて、前記手摺枠を取り外すことができる。
【０００６】
請求項２によれば、必要において、操作杆の長さを変えることで、作業者は、取り外すべき足場ユニットの下側の足場ユニットの位置において、仮設資材の連結手段のロック解除操作が可能である。
【０００７】
請求項３によれば、使用状況に応じて、第１操作杆に対し、第２操作杆を折り畳んだ状態で、第２操作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、第１操作杆に対し第２保持手段により、第２操作杆を展開した状態で保持して、解除操作が可能である。
【０００８】
請求項４によれば、第１操作杆に対し第２操作杆を展開した状態で、保持手段を第１操作杆における第２操作杆の軸止箇所近傍に嵌入し、押圧手段により前記保持手段に、第２操作杆を押し付けることで、前記第１操作杆に対し第２操作杆を固定することができる。
【０００９】
請求項５によれば、第１操作杆に対し第２操作杆を展開した状態で、保持手段を第１操作杆における第２操作杆の軸止箇所近傍に嵌入し、第１操作杆外面から内面に向かって押圧ねじを螺入することで、第２操作杆を押し付けて前記保持手段を脱落しないようにして、前記第１操作杆に対し第２操作杆を固定することができる。
【００１０】
請求項６によれば、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がなされる。
【００１１】
請求項７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。
【００１２】
請求項８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。
【００１３】
【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、長さを切り換え可能な操作杆２と、この操作杆２先端側に、仮設資材による足場に併設した転落防止用の手摺枠（後述）を結合する連結手段（後述）のロック解除をするためのロック解除具３を設けている。
このロック解除具３は、前記連結手段に係合して前記操作杆２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構成としている。
【００１４】
前記解体治具１は、全体が例えばアルミニウム等の軽金属で構成することができる。もちろん、所定の強度があれば、合成樹脂も可能である。
【００１５】
前記操作杆２は、断面コ形形状に加工したもので、第１の操作杆２ａと、この第１操作杆２ａに対し、折り畳み、展開可能に連結した第２の操作杆２ｂとによって構成している。この場合、第１操作杆２ａと第２操作杆２ｂとは、前記第２操作杆２ｂが、第１操作杆２ａ内側に埋没する状態で折り畳まれる寸法設定である。
【００１６】
前記第１操作杆２ａに対し第２操作杆２ｂが折り畳んだ状態にあっては、保持手段４により、折り畳んだ状態に保持するようにしている。この保持手段４は、第１操作杆２ａの外形にほぼ近い方形環状体であり、第１操作杆２ａに対し第２操作杆２ｂを折り畳んだ状態で保持するために、前記保持手段４を第１操作杆２ａ外周に嵌め入れるようにしている（図３参照）。
【００１７】
一方、前記第１操作杆２ａに対し第２操作杆２ｂを展開した状態にあっては、図４に示すように前記保持手段４を第１操作杆２ａにおける第２操作杆２ｂの軸止箇所Ｐ近傍に嵌入した状態で、前記第２操作杆２ｂの軸止箇所近傍に設けた、第１操作杆２ａ外面から内面に向かって螺入した押圧ねじ５により、第２操作杆２ｂを押し付けて前記保持手段４を脱落しないようにして、前記第１操作杆２ａに対し第２操作杆２ｂを保持する構成である。
前記押圧ねじ５には、操作しやすいように蝶ボルトを用いており、第１操作杆２ａ外面に設けた補強部材６を介し螺着して、第１操作杆２ａ内面に押圧ねじ５の軸５ａ先端を臨入している（図５参照）。なお、前記軸５ａ先端には、抜け止防止用のかしめ加工を施すことができる。
【００１８】
そして、前記第２操作杆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、前記第２操作杆２ｂに対して１２０度程度の鈍角で溶着している（図３参照）。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７を突設している。このフックロッド７は、適宜な軸部材を用いて構成し、中間から先端にかけて、前記第２操作杆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７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６参照）。
【００１９】
さらに前記操作杆２のうちの第１操作杆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８を設けている。
【００２０】
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７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、連結手段９によって取り付けている（図８参照）。
【００２１】
前記連結手段９は、建枠Ａに突設した突部１０に、ばね部材によって突出する側に付勢したロック部材１１を設けて構成している。この突部１０を、手摺枠Ｄの四隅に設けた受具１２の係止穴ｈに挿通することで、前記ロック部材１１を前記突部１０の径方向に突出させて、手摺枠Ｄを、受具１２を介して脱落しないように保持するようにしている。
【００２２】
このような連結手段９における突部１０のロック部材１１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１０内にロック部材１１をばね力に抗して押し込むことでロック解除して、前記手摺枠Ｄを手摺枠Ｄの四隅に設けた受具１２を突部１０から離脱させて、取り外す構成である。
【００２３】
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第２操作杆２ｂ先端のロック解除具３に設けたフックロッド７を引っ掛けて携帯することができる。また、第１操作杆２ａの連結リング８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６参照）。
【００２４】
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１２における連結手段９の突部１０のロック部材１１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７、図９参照）。
【００２５】
次に、腰ベルトに引っ掛けた折り畳んだ状態にある解体治具１を手にとり、第２操作杆２ｂ先端のロック解除具３が、手摺枠Ｄの上側の受具１２における連結手段９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１２における連結手段９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９の突部１０、およびロック部材１１に嵌め入れていき解除操作を開始する。
【００２６】
また、ロック解除具３が、手摺枠Ｄの上側の受具１２における連結手段９に届かないときは、折り畳んだ状態にある解体治具１の操作杆２の長さを変える。すなわち、第１操作杆２ａに対し第２操作杆２ｂが折り畳んだ状態に保持する保持手段４を、前記第１操作杆２ａ外周から引き抜き（図３参照）、第２操作杆２ｂを第１操作杆２ａに対し展開する（図４参照）。
次に、前記保持手段４を第１操作杆２ａにおける第２操作杆２ｂの軸止箇所近傍に嵌入すると共に、前記第２操作杆２ｂの軸止箇所近傍に設けた押圧ねじ５により、第２操作杆２ｂを押し付けて前記保持手段４を脱落しないようにして、前記第１操作杆２ａに対し第２操作杆２ｂを展開した状態で保持する（図５参照）。このようにすることで、第１操作杆２ａと第２操作杆２ｂとは、一つの杆のごとくぐらつくことなく固定される。
【００２７】
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９の突部１０、およびロック部材１１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９のロック部材がばね力に抗して押し込まれ、これにより前記連結手段９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１２参照）。
そして、もう一方の連結手段９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、アルミニウム等の軽金属によって構成しているので、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。
【００２８】
【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、第１操作杆に対し、第２操作杆を折り畳んだ状態で、第２操作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、第１操作杆に対し第２保持手段により、第２操作杆を展開した状態で保持して、解除操作が可能である。
（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
【００２９】
【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展開して拡張した状態を示す、外観斜視図である。
【図４】図３に示す拡張した状態にある仮設資材用解体治具の一側面図である。
【図５】図１に示す仮設資材用解体治具を用いて足場を解体作業を行うところをしめす、説明図である。
【図６】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７】足場において解体作業をする際の説明図である。
【図８】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９】足場に敷設された手摺枠の解体作業の説明図である。
【図１０】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、連結手段に係合したところを示す要部断面説明図である。
【図１２】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。
【符号の説明】
１仮設資材用解体治具
２操作杆
２ａ第１操作杆
２ｂ第２操作杆
３ロック解除具
４保持手段
５押圧ねじ
５ａ軸
６補強部材
７フックロッド
８連結リング
９連結手段
１０突部
１１ロック部材
１２受具
Ｐ軸止箇所
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]
BACKGROUND OF THE INVENTION
The present invention relates to a temporary material dismantling jig that can efficiently and safely dismantle temporary materials during construction work, for example.
[0002]
[Prior art]
Currently, among the temporary materials used for construction structures during civil engineering construction and repair work, the builders' scaffolding is mainly constructed by standardized units (building frames, cloth frames, braces, etc.). A plurality of rows and stages are assembled around the periphery. In addition, the dismantling of such a scaffold is performed by removing the one-stage building frame and the cloth frame from the upper stage to the lower stage by the operator's hand, so a handrail frame is used to prevent the operator from falling. It arrange | positions (Unexamined-Japanese-Patent No. 2003-120018).
In this case, the handrail frame is connected along the building frame between the adjacent support pipes by the connecting means provided on the support pipe side so that the handrail frame can be easily fitted while not being dropped. It is configured to do.
[0003]
[Problems to be solved by the invention]
However, since the handrail frame is attached in this way, the handrail frame can be attached easily, but when removing it, the connecting means provided on the column pipe side can be manually released one by one. The handrail frame must be removed. At that time, since the operator is in the scaffolding of the handrail frame to be removed and performs the releasing operation, there is a risk of falling.
Therefore, if it is in a scaffold that is one step lower than the handrail frame to be removed and is not likely to fall, and if the work of removing the upper handrail frame is performed, it will lead to the viewpoint that the work can be performed safely. It was decided to devise.
The present invention has been proposed from the background as described above, and provides a temporary material dismantling jig that can efficiently and safely disassemble temporary materials during construction work. With the goal.
[0004]
[Means for Solving the Problems]
In order to solve the above-described problems, in the present invention, in claim 1, a receiving frame provided with a projecting portion having a building frame and a handrail frame, which are temporary materials, and having a lock member provided on the building frame. In the connecting means for inserting the lock member through the locking hole of the tool, projecting the lock member in the radial direction of the protrusion by elastic force, and assembling the handrail frame to the building frame , The lock release tool has an inclined structure, and the lock release tool opens the protrusion so that the protrusion can be inserted, and inserts the protrusion from the opening end of the lock release tool to displace the operation rod. Thus, the lock release tool inner wall pushes the lock member into the protrusion against the elastic force, and the handle of the handrail frame is detached from the protrusion of the building frame to remove the handrail frame. Propose a dismantling jig for temporary materials.
According to the present invention, in claim 2, the operating rod proposes a temporary material dismantling jig configured to be adjustable in length.
According to the present invention, in claim 3, the operating rod is constituted by a first operating rod and a second operating rod connected to the first operating rod so as to be foldable and unfoldable. The lock release tool is attached to the distal end side of the second operating rod, the holding means for holding the second operating rod in a folded state with respect to the first operating rod, and the second operating rod is pressed against the holding means by pressing the second operating rod. Proposed is a temporary material dismantling jig provided with pressing means for fixing the two operating rods in a state of being expanded relative to the first operating rod.
Also, in the present invention, in claim 4, the holding means is an annular body that is substantially close to the outer shape of the first operating rod, and in order to hold the second operating rod in a folded state with respect to the first operating rod, While the second operating rod is expanded with respect to the first operating rod, the holding means is inserted in the vicinity of the axial stop position of the second operating rod in the first operating rod, A temporary material dismantling jig configured to fix the second operating rod in a state where the second operating rod is expanded with respect to the first operating rod by pressing the second operating rod against the holding means by the pressing means is proposed.
According to the present invention, in the fifth aspect of the present invention, the pressing means is screwed from the outer surface of the first operating rod toward the inner surface in the vicinity of the shaft stop position of the second operating rod of the first operating rod. A dismantling jig for temporary materials constituted by a pressing screw that presses an operating rod to press the holding means so as not to fall off is proposed.
Also, in the present invention, in claim 6, the unlocking tool is constituted by a hollow pipe material that can be fitted into the connecting means, and is dismantled for the temporary material connected to the operation rod so as to form an obtuse angle with respect to the operation rod. Propose a jig.
In the present invention, a dismantling jig for temporary materials is proposed in claim 7 in which a portable hook rod is provided in the middle of the lock release tool.
Further, the present invention proposes a temporary material dismantling jig according to claim 8, wherein the operating rod is provided with a connector for connecting a fall prevention rope.
[0005]
According to claim 1, the operator inserts the protruding portion of the connecting means for assembling the building frame and the handrail frame of the scaffolding from the opening end of the unlocking tool into the unlocking tool on the operation rod tip side, By displacing the operation rod, the lock release member inner wall pushes the lock member into the protrusion against the elastic force, and the handrail frame holder is detached from the building frame protrusion, The handrail frame can be removed.
[0006]
According to claim 2, by changing the length of the operating rod as necessary, the operator can unlock the temporary material connecting means at the position of the lower scaffold unit to be removed. is there.
[0007]
According to the third aspect, the release operation is performed by engaging the lock release tool on the distal end side of the second operation rod with the connecting means in a state where the second operation rod is folded with respect to the first operation rod according to the use situation. The second operating rod can be held in the unfolded state by the second holding means with respect to the first operating rod, and the releasing operation can be performed.
[0008]
According to claim 4, in a state where the second operation rod is expanded with respect to the first operation rod, the holding means is fitted in the vicinity of the shaft stop position of the second operation rod in the first operation rod, and the holding means is formed by the pressing means. In addition, the second operation rod can be fixed to the first operation rod by pressing the second operation rod.
[0009]
According to claim 5, in a state where the second operation rod is expanded with respect to the first operation rod, the holding means is fitted in the vicinity of the shaft stop position of the second operation rod in the first operation rod, By screwing a pressing screw toward the inner surface, the second operating rod can be fixed to the first operating rod without pressing the second operating rod and dropping the holding means.
[0010]
According to the sixth aspect, the opening of the lock release tool on the distal end side of the operating rod is engaged with the connecting means and the proximal side of the operating rod is pushed in to unlock the connecting means.
[0011]
According to the seventh aspect, when performing the dismantling work, the dismantling jig can be moved to the dismantling position by moving the scaffold while the hook rod is hooked on the waist belt portion of the work clothes.
[0012]
According to the eighth aspect, even if the disassembly jig is detached from the hook rod from the waist belt portion of the work clothes during the movement, it can be prevented from falling.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
DESCRIPTION OF EMBODIMENTS Hereinafter, a temporary material disassembly jig according to the present invention will be described with reference to the accompanying drawings showing one embodiment.
FIG. 1 and FIG. 2 show a temporary material dismantling jig 1. The temporary material dismantling jig 1 is provided with an operating rod 2 whose length can be switched and a scaffolding made of temporary material on the distal end side of the operating rod 2. There is provided an unlocking tool 3 for unlocking a connecting means (described later) for connecting a handrail frame (described later) for preventing falling.
The lock release tool 3 is configured to release the locking action of the connecting means by engaging the connecting means and causing the operating rod 2 to be displaced.
[0014]
The dismantling jig 1 can be entirely made of a light metal such as aluminum. Of course, a synthetic resin is also possible if it has a predetermined strength.
[0015]
The operation rod 2 is processed into a U-shaped cross section, and is composed of a first operation rod 2a and a second operation rod 2b that is connected to the first operation rod 2a so as to be folded and unfoldable. ing. In this case, the first operation rod 2a and the second operation rod 2b are dimension settings such that the second operation rod 2b is folded in a state of being buried inside the first operation rod 2a.
[0016]
When the second operating rod 2b is folded with respect to the first operating rod 2a, the holding means 4 holds the folded state. The holding means 4 is a rectangular annular body that is substantially close to the outer shape of the first operating rod 2a. In order to hold the second operating rod 2b in a folded state with respect to the first operating rod 2a, the holding means 4 is One operation rod 2a is fitted into the outer periphery (see FIG. 3).
[0017]
On the other hand, when the second operating rod 2b is unfolded with respect to the first operating rod 2a, the holding means 4 is fixed to the second operating rod 2b in the first operating rod 2a as shown in FIG. The second operating rod 2b is pressed by the pressing screw 5 screwed into the inner surface from the outer surface of the first operating rod 2a provided in the vicinity of the shaft stop position of the second operating rod 2b in a state of being fitted in the vicinity of P. The second operating rod 2b is held with respect to the first operating rod 2a so as not to drop the holding means 4.
A wing bolt is used for the pressing screw 5 so as to be easy to operate, and is screwed through a reinforcing member 6 provided on the outer surface of the first operating rod 2a, so that the shaft of the pressing screw 5 is attached to the inner surface of the first operating rod 2a. The tip of 5a has entered (refer to FIG. 5). The tip of the shaft 5a can be caulked to prevent it from coming off.
[0018]
The lock release tool 3 on the distal end side of the second operating rod 2b is made of a hollow pipe material having a predetermined length and is welded to the second operating rod 2b at an obtuse angle of about 120 degrees (FIG. 3). reference). In this case, the inner diameter of the unlocking tool 3 is set so as to be able to be fitted in correspondence with a connecting means for connecting a handrail frame to be described later.
Further, a portable hook rod 7 projects from the middle of the unlocking tool 3. The hook rod 7 is configured using an appropriate shaft member, and is bent from the middle to the tip so as to be substantially parallel to the second operating rod 2b. As a result, the hook rod 7 can be easily hooked on a waist belt or the like of work clothes, thereby providing portability to the disassembly jig 1 (see FIG. 6).
[0019]
Further, the first operation rod 2a of the operation rods 2 is provided with a connection ring 8 for connecting a fall prevention rope L provided on a waist belt or the like of work clothes.
[0020]
Here, the scaffold F by temporary material is demonstrated.
As shown in FIG. 7, the scaffold F is constructed by assembling a plurality of rows and a plurality of stages around the construction structure by a building frame A, a cloth frame B, a triangular frame C, and the like, and further, for preventing falling. A handrail frame D is provided. The handrail frame D is attached to the building frame A by the connecting means 9 (see FIG. 8).
[0021]
The connecting means 9 is configured by providing, on a projecting portion 10 projecting from the building frame A, a lock member 11 urged to the side projecting by a spring member. By inserting the protrusions 10 into the locking holes h of the support 12 provided at the four corners of the handrail frame D, the lock member 11 is protruded in the radial direction of the protrusion 10, and the handrail frame D is The holder 12 is held so as not to drop off.
[0022]
The lock member 11 of the protrusion 10 in the connecting means 9 is fitted into the inner surface of the unlocking tool 3 from the opening end of the unlocking tool 3 to displace the unlocking tool 3. The lock is released by pushing the lock member 11 into the protrusion 10 against the spring force by the inner wall, and the holder 12 provided at the four corners of the handrail frame D is detached from the protrusion 10. It is the structure which removes.
[0023]
The temporary material disassembly jig 1 according to the present invention is configured as described above. Next, the disassembly procedure of the scaffold F and the handrail frame D by the temporary material disassembly jig 1 will be described.
The civil engineering work, building work, repair work, etc. will be completed, and temporary materials used in the construction structure will be removed in order from the top. For that purpose, the worker goes up to the top through 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 operator can carry the disassembly jig 1 by hooking the hook rod 7 provided on the lock release tool 3 at the tip of the second operating rod 2b on the waist belt or the like of the work clothes. Further, if the fall prevention rope L provided on the waist belt of the work clothes is connected to the connection ring 8 of the first operating rod 2a, the dismantling jig 1 is not dropped (see FIG. 6).
[0024]
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 then removes the uppermost scaffold. The cloth frame B is removed at a position one step below F.
Next, the uppermost handrail frame D is removed, but the lock members 11 of the projections 10 of the connecting means 9 in both the receivers 12 on the lower side of the handrail frame D are pushed in and removed so that they are not locked again. The lower side of the frame D is pulled apart (see FIGS. 7 and 9).
[0025]
Next, take the dismantling jig 1 in the folded state hooked on the waist belt, and the unlocking tool 3 at the tip of the second operating rod 2b reaches the connecting means 9 in the receiving tool 12 on the upper side of the handrail frame D. Please check.
As soon as the unlocking tool 3 reaches the connecting means 9 in the receiving tool 12 on the upper side of the handrail frame D, the unlocking tool 3 is fitted to the protrusion 10 of the connecting means 9 and the lock member 11 at the opening end of the unlocking tool 3. Start the release operation.
[0026]
Further, when the unlocking tool 3 does not reach the connecting means 9 in the receiving tool 12 on the upper side of the handrail frame D, the length of the operation rod 2 of the dismantling jig 1 in the folded state is changed. That is, the holding means 4 that holds the second operating rod 2b in a folded state with respect to the first operating rod 2a is pulled out from the outer periphery of the first operating rod 2a (see FIG. 3), and the second operating rod 2b is moved to the first operation. It expand | deploys with respect to the ridge 2a (refer FIG. 4).
Next, the holding means 4 is fitted in the vicinity of the shaft stop position of the second operation rod 2b in the first operation rod 2a, and the second screw is provided by the press screw 5 provided in the vicinity of the shaft stop portion of the second operation rod 2b. The operating rod 2b is pressed to prevent the holding means 4 from falling off, and the second operating rod 2b is held in the developed state with respect to the first operating rod 2a (see FIG. 5). By doing in this way, the 1st operation rod 2a and the 2nd operation rod 2b are fixed without wobbling like a single rod.
[0027]
The release operation can be performed by adjusting the length of the operation rod 2 as described above. The lock release tool 3 is unlocked by pushing the grip portion side of the operating rod 2 toward the building frame A in a state where the protrusion 10 of the connecting means 9 and the lock member 11 are fitted into the opening end of the lock release tool 3. The locking member of the connecting means 9 is pushed against the spring force by the inner wall of the tool 3, whereby the locking action of the connecting means 9 can be released, and the handrail frame D can be removed from the building frame A ( (See FIGS. 10, 11, and 12).
Then, if the other connecting means 9 is similarly removed by the disassembly jig 1, disassembly of the handrail frame D is completed.
In this way, the dismantling work of the handrail frame D can be performed in a state where the handrail frame D is put on the cloth frame B 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 risk of falling.
In addition, since the said dismantling jig | tool 1 is comprised with light metals, such as aluminum, the burden with respect to an upper arm is eased and the operation | work over a long time is attained.
[0028]
【The invention's effect】
As described above, according to the present invention, (1) the operator engages the lock release tool at the distal end side of the operating rod with the connecting device to displace the operating rod, thereby locking the connecting device. It can be released and the scaffold unit can be removed.
(2) Depending on the structure of the scaffold, in a state where the second operation rod is folded with respect to the first operation rod, the lock release tool on the distal end side of the second operation rod is engaged with the connecting means, and the release operation is performed. The second operating rod can be held in the unfolded state by the second holding means with respect to the first operating rod, and the releasing operation can be performed.
(3) By engaging the opening of the unlocking tool on the distal end side of the operating rod with the connecting means and pushing the proximal side of the operating rod, the connecting means can be unlocked, and the disassembling work is facilitated. .
(4) In the dismantling operation, the dismantling jig can be moved to the dismantling position by moving the scaffold while the hook rod is hooked on the waist belt portion of the work clothes.
(5) Even when the disassembly jig is detached from the hook rod from the waist belt portion of the work clothes during the movement, it can be prevented from falling.
(6) Since the temporary material dismantling work is performed on the scaffold surrounded by the handrail frame, one step below the scaffold for removal, the work can be performed without fear of falling.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an example of a temporary material disassembly jig according to the present invention.
FIG. 2 is a side view of the temporary material dismantling jig shown in FIG.
FIG. 3 is an external perspective view showing a state where the operating rod of the temporary material disassembly jig shown in FIG. 1 is expanded and expanded.
4 is a side view of the temporary material dismantling jig shown in FIG. 3 in an expanded state.
FIG. 5 is an explanatory view showing a scaffold dismantling operation using the temporary material disassembling jig shown in FIG. 1;
FIG. 6 is an explanatory view showing a hook rod of a dismantling jig for temporary materials according to the present invention hooked on a waist belt or the like of work clothes and connected to a fall prevention rope.
FIG. 7 is an explanatory diagram when dismantling work is performed on a scaffold.
FIG. 8 is a main part explanatory view showing a holding structure of a handrail frame laid on the scaffold.
FIG. 9 is an explanatory diagram of dismantling work of a handrail frame laid on the scaffold.
FIG. 10 is an explanatory diagram when the upper side of the handrail frame laid on the scaffold is disassembled using a temporary material disassembly jig.
FIG. 11 is a cross-sectional explanatory view of a main part showing a state where the unlocking tool in the temporary material dismantling jig is engaged with the connecting means;
FIG. 12 is a cross-sectional explanatory view of a principal part showing a state where the lock release tool in the temporary material dismantling jig is engaged with the connecting means to displace the operating rod.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Temporary material disassembly jig 2 Operation rod 2a 1st operation rod 2b 2nd operation rod 3 Lock release tool 4 Holding means 5 Press screw 5a Shaft 6 Reinforcement member 7 Hook rod 8 Connection ring 9 Connection means 10 Protrusion 11 Lock member 12 Receptacle P Shaft stop L Fall prevention rope F Scaffolding A Building frame B Fabric frame C Triangle frame D Handrail frame h Locking hole

Claims

The building frame is a temporary material and a handrail frame, and a protrusion having a lock member provided on the building frame is inserted into a retaining hole provided on the handrail frame. projecting in a radial direction of the projections, in the coupling means for assembling said handrail frame to the Kenwaku, and operating rod, and a lock release tool inclined arrangement this operation杆先end, the lock release tool is the butt The lock member is opened by the inner wall of the lock release tool, and the lock member is elastically moved by the inner wall of the lock release tool. The dismantling jig for temporary materials, which is configured to remove the handrail frame by pushing against the door and detaching the support of the handrail frame from the protrusion of the building frame .

2. The temporary material dismantling jig according to claim 1, wherein the operating rod is configured to be adjustable in length.

The operating rod is composed of a first operating rod and a second operating rod connected to the first operating rod so that the first operating rod can be folded and unfolded. And a holding means for holding the second operating rod in a folded state with respect to the first operating rod, and by pressing the second operating rod against the holding means, the second operating rod is moved against the first operating rod. The temporary material dismantling jig according to claim 1 or 2, further comprising pressing means for fixing in an unfolded state.

The holding means is an annular body substantially close to the outer shape of the first operating rod, and is fitted on the outer periphery of the first operating rod to hold the second operating rod in a folded state with respect to the first operating rod. In a state where the second operating rod is deployed with respect to the first operating rod, the holding means is fitted in the vicinity of the shaft stop portion of the second operating rod in the first operating rod, and the pressing means causes the holding means to 4. The temporary material disassembling jig according to claim 3, wherein the second operating rod is fixed in a state where the second operating rod is expanded with respect to the first operating rod by pressing the two operating rods.

The pressing means is screwed in from the outer surface of the first operating rod toward the inner surface in the vicinity of the shaft stop position of the second operating rod in the first operating rod, and presses the second operating rod to drop the holding means. 5. The temporary material dismantling jig according to claim 4, wherein the disassembling jig for temporary material is constituted by a pressing screw that is pressed so as not to move.

4. The 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 connected to the operation rod so as to form an obtuse angle with respect to the operation rod. Dismantling jig for.

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

6. The temporary material dismantling jig according to any one of claims 1 to 5, wherein the operating rod is provided with a connecting tool for connecting a fall prevention rope.