JP4012056B2

JP4012056B2 - Scaffolding structure

Info

Publication number: JP4012056B2
Application number: JP2002360248A
Authority: JP
Inventors: 良隆猪股
Original assignee: Sumitomo Forestry Co Ltd
Current assignee: Sumitomo Forestry Co Ltd
Priority date: 2002-12-12
Filing date: 2002-12-12
Publication date: 2007-11-21
Anticipated expiration: 2022-12-12
Also published as: JP2004190356A

Description

【０００１】
【発明の属する技術分野】
本発明は、主として資材等の搬出入を行う箇所に設けられる足場構造に関する。
【０００２】
【従来の技術】
住宅を建築するにあたっては、その住宅が建築される予定箇所の周囲に足場を組み上げながら、その足場を利用して住宅を建築していくのが一般的であるが、かかる住宅を建築するにはさまざまな建築資材が必要になるとともに、工事の進捗に応じて仮設資材の搬入搬出も必要となる。
【０００３】
一方、大規模な建設物であればともかく、比較的規模が小さい建設物である住宅の場合には、上述した建築資材や仮設資材の搬出入のために、特別な開口を足場に設けることはほとんどない。
【０００４】
そのため、従来においては、作業員が建築資材等を担いだ状態で足場布板の下をくぐるように搬入したり、足場布板を一時的に撤去していた。
【０００５】
【特許文献１】
特開2002-38708号公報
【特許文献２】
特開2000-129911号公報
【特許文献３】
特開平11-193626号公報
【特許文献４】
特開平11-62223号公報
【特許文献５】
特開平8-333889号公報
【特許文献６】
特許第3289667号公報
【０００６】
【発明が解決しようとする課題】
しかしながら、建築資材等を担いだ状態で足場布板の下をくぐるような搬出入の方法は、不便であるのみならず、建築資材等が足場布板に不意にぶつかることで作業員が転倒したり、作業員自ら足場布板に頭をぶつけたりといった事態が想定され、作業員の安全性を確保することができないという問題を生じていた。
【０００７】
また、足場布板を一時的に撤去する方法は、撤去及び再取付けに手間がかかるとともに、撤去前は安全通路が確保されていた状態が、足場布板を撤去することによってその撤去箇所で安全通路が分断されることとなるため、撤去された足場布板の両側に手摺を取り付けることによって、安全通路がそこで行き止まりであることを作業員に知らしめ、作業員の転落を防止しなければならないという問題も生じていた。
【０００８】
また、撤去された足場布板を隣の足場布板に仮置きする作業員もおり、かかる場合には安全通路が非常に危険な状態になるとともに、撤去された足場布板を地面に仮置きした場合には、作業の邪魔になるのみならず、泥で汚れて滑りやすくなるため、再取付けした後の安全確保にやはり問題が生じる。
【０００９】
本発明は、上述した事情を考慮してなされたもので、建築資材や仮設資材の搬出入の際、足場布板を撤去することなく、安全でかつ不便を感じずに搬出入を行うことが可能な足場構造を提供することを目的とする。
【００１０】
【課題を解決するための手段】
上記目的を達成するため、本発明に係る足場構造は請求項１に記載したように、互いに対向するように立設された一対の建地にそれぞれ取り付けられる鉛直軸線廻りに回動自在な第１の支持ブラケットと、該一対の建地を水平に相互連結する第１の連結管に水平軸線廻りに回動自在に取付けられ前記第１の支持ブラケットで水平支持される第１の作業床と、前記第１の連結管に直交しかつ地表面と平行な足場軸線に沿って前記一対の建地から離間した位置にて互いに対向するように立設された一対の建地にそれぞれ取り付けられる鉛直軸線廻りに回動自在な第２の支持ブラケットと、該一対の建地を水平に相互連結する第２の連結管に回動自在に取り付けられ前記第２の支持ブラケットで水平支持される第２の作業床とから構成してなるとともに、前記第１の作業床と前記第２の作業床、及び前記第１の支持ブラケットと前記第２の支持ブラケットとをそれぞれ互いに対称配置してなり、前記第１の作業床及び前記第２の作業床を水平位置に回転させたときにそれらの作業床上に連続した安全通路が形成されるとともに、前記第１の作業床及び前記第２の作業床を鉛直位置に回転させたときに前記第１の連結管と前記第２の連結管の間に前記足場軸線に直交する搬出入路が形成されるようになっているものである。
【００１１】
また、本発明に係る足場構造は、前記第１の支持ブラケット及び前記第２の支持ブラケットを、前記建地に上下二段に固定される２つのクランプ部材と、該クランプ部材のうち、下段のクランプ部材に鉛直軸線廻り及び水平軸線廻りに回動自在となるようにピン接合されたブレース部材と、上段のクランプ部材に鉛直軸線廻り及び水平軸線廻りで回動自在となるようにピン接合されたアーム部材とから構成するとともに、前記ブレース部材の先端を水平軸線廻りに回動自在となるように前記アーム部材の先端近傍にピン接合し、前記アーム部材の先端上面に作業床受けを設けたものである。
【００１２】
また、本発明に係る足場構造は、前記第１の支持ブラケット及び前記第２の支持ブラケットを、前記建地に上下二段に固定される２つのクランプ部材と、該クランプ部材に鉛直軸線廻りに回動自在となるようにピン接合された三角形状支持ブラケット本体で構成するとともに、該三角形状支持ブラケット本体の先端に高さ調整ネジが螺合された雌ねじ部を設け、該高さ調整ネジの頂部に作業床受けを設けたものである。
【００１３】
また、本発明に係る足場構造は、前記作業床受けを鉛直軸線廻り及び水平軸線廻りに回動自在となるようにしたものである。
【００１４】
また、本発明に係る足場構造は、前記第１の作業床及び前記第２の作業床の外縁を構成するフレームのうち、前記足場軸線に平行な側面基部に該側面基部に沿って摺動自在な脱落防止部材を取り付けてなり、前記第１の作業床及び前記第２の作業床を鉛直位置に回転させたとき、前記脱落防止部材を鉛直下方に下降させることにより、前記第１の連結管及び前記第２の連結管を、前記フレームのうち、前記足場軸線に直交する側面に突設されたフックと前記脱落防止部材との間に挟持するようにしたものである。
【００１５】
また、本発明に係る足場構造は、前記第１の作業床及び前記第２の作業床の外縁を構成するフレームのうち、前記足場軸線に平行な側面端部に倒れ防止部材を設けるとともに、前記第１の作業床及び前記第２の作業床を鉛直位置に回転させたとき、該倒れ防止部材を前記建地に仮連結できるように構成したものである。
【００１６】
本発明に係る足場構造においては、第１の支持ブラケットは、互いに対向するように立設された一対の建地にそれぞれ取り付けられ、鉛直軸線廻りに回動自在に構成してある。また、第１の作業床は、かかる一対の建地を水平に相互連結する第１の連結管に水平軸線廻りに回動自在に取付けられ、上述した第１の支持ブラケットでそれぞれ水平支持される。
【００１７】
第２の支持ブラケット及び第２の作業床もほぼ同様であるが、これらは、第１の支持ブラケット及び第１の作業床と対称配置してあるとともに、第１の連結管と第２の連結管とは、例えば、通常の足場布板を取り付けるのに必要な長さに相当する距離だけ離間しており、この場合には、第１の作業床と第２の作業床は、それぞれ通常の足場布板の半分の長さとすればよい。
【００１８】
かかる構成において、建築資材や仮設資材の搬出入が必要なときには、第１の作業床と第２の作業床とを互いに逆方向に回転させて跳ね上げる。
【００１９】
このようにすると、中央付近に搬出入路が形成されるので、作業員は、該搬出入路を通って建築資材等を担いだまま、安全に無理なく搬出入を行うことができる。なお、第１の支持ブラケット及び第２の支持ブラケットは、搬出入の邪魔にならぬよう、鉛直軸線廻りに適宜回転させておく。
【００２０】
一方、建築資材等の搬出入を行わないときには、第１の作業床及び第２の作業床を逆方向に回転させて水平姿勢とした上、これらを第１の支持ブラケット及び第２の支持ブラケットでそれぞれ水平支持する。
【００２１】
このようにすると、第１の作業床及び第２の作業床の上には、連続した安全通路が形成される。
【００２２】
第１の支持ブラケット及び第２の支持ブラケットをどのように構成するかは任意であるが、例えば、前記建地に上下二段に固定される２つのクランプ部材と、該クランプ部材のうち、下段のクランプ部材に鉛直軸線廻り及び水平軸線廻りに回動自在となるようにピン接合されたブレース部材と、上段のクランプ部材に鉛直軸線廻り及び水平軸線廻りで回動自在となるようにピン接合されたアーム部材とから構成するとともに、前記ブレース部材の先端を水平軸線廻りに回動自在となるように前記アーム部材の先端近傍にピン接合し、前記アーム部材の先端上面に作業床受けを設けた構成とすることができる。
【００２３】
かかる構成においては、上下二段のクランプ部材の取付け高さを調整せずとも、ブレース部材がピン接合されたクランプ部材の取付け高さだけを調整することによって、作用床受けの高さを調整することができる。
【００２４】
また、前記建地に上下二段に固定される２つのクランプ部材と、該クランプ部材に鉛直軸線廻りに回動自在となるようにピン接合された三角形状支持ブラケット本体で構成するとともに、該三角形状支持ブラケット本体の先端に高さ調整ネジが螺合された雌ねじ部を設け、該高さ調整ネジの頂部に作業床受けを設けた構成とすることができる。
【００２５】
かかる構成においては、高さ調整ネジを回すことで作業床受けの高さを調整することができる。
【００２６】
上述した各支持ブラケットにおいて、前記作業床受けを鉛直軸線廻り及び水平軸線廻りに回動自在となるようにしたならば、作業床からの荷重が作業床受けに偏って作用する懸念がなくなり、作業床からの荷重を安定して支持することが可能となる。
【００２７】
第１の作業床や第２の作業床を鉛直姿勢で保持できるのであれば、かかる作業床をどのように第１の連結管や第２の連結管に回動自在に取り付けてもかまわないが、かかる第１の作業床及び第２の作業床の外縁を構成するフレームのうち、前記足場軸線に平行な側面基部に該側面基部に沿って摺動自在な脱落防止部材を取り付けてなり、前記第１の作業床及び前記第２の作業床を鉛直位置に回転させたとき、前記脱落防止部材を鉛直下方に下降させることにより、前記第１の連結管及び前記第２の連結管を前記フレームのうち、前記足場軸線に直交する側面に突設されたフックと前記脱落防止部材との間に挟持するようにしたならば、第１の連結管からの第１の作業床の脱落及び第２の連結管からの第２の作業床の脱落を確実に防止することが可能となる。
【００２８】
また、第１の作業床や第２の作業床を鉛直姿勢で保持する手段は任意であるが、前記第１の作業床及び前記第２の作業床の外縁を構成するフレームのうち、前記足場軸線に平行な側面端部に倒れ防止部材を設けるとともに、前記第１の作業床及び前記第２の作業床を鉛直位置に回転させたとき、該倒れ防止部材を前記建地に仮連結できるように構成したならば、第１の作業床及び第２の作業床の倒れを未然に防止することができるとともに、かかる作業床が安全通路の行き止まりを示すとともに、作業員の転落を防止するための転落防止手段ともなる。
【００２９】
【発明の実施の形態】
以下、本発明に係る足場構造の実施の形態について、添付図面を参照して説明する。なお、従来技術と実質的に同一の部品等については同一の符号を付してその説明を省略する。
【００３０】
図１は、本実施形態に係る足場構造の全体斜視図である。同図でわかるように、本実施形態に係る足場構造１は、第１の支持ブラケット２ａ，２ａ、該支持ブラケットで水平支持される第１の作業床３ａ、第２の支持ブラケット２ｂ，２ｂ及び該支持ブラケットで水平支持される第２の作業床３ｂからなるとともに、第１の支持ブラケット２ａ，２ａと第２の支持ブラケット２ｂ，２ｂ、第１の作業床３ａと第２の作業床３ｂとをそれぞれ対向するようにかつ対称に配置してある。
【００３１】
第１の支持ブラケット２ａは図２に詳細に示すように、互いに対向するように立設された一対の建地４ａ，４ａのそれぞれに上下二段に取り付けられる２つのクランプ部材１１，１２と、該クランプ部材のうち、下段のクランプ部材１１に接合されたブレース部材１３と、上段のクランプ部材１２に接合されたアーム部材１４とから構成するとともに、ブレース部材１３の先端を水平軸線廻りに回動自在となるようにアーム部材１３の先端近傍にピン接合し、アーム部材１４の先端上面には作業床受け１５を設けてある。
【００３２】
ここで、クランプ部材１１，１２は図３に詳細に示すように、半円筒体３０ａ，３０ｂを相互にヒンジ接合するとともに該半円筒体の各縁部からそれぞれ延設された固定片３１ａ，３１ｂのうち、一方の固定片３１ａに立設された雄ネジ２２を他方の固定片３１ｂに形成された切り欠きに挿通するとともにかかる状態で雄ネジ２２にナット２３を螺合するようになっているクランプ本体２１と、該クランプ本体を構成する半円筒体３０ａの外周面に溶接等で固定された円筒体２４の中空内部にリング２７を介して挿通される雌ネジ部３２が円筒体２４に挿通された状態でその反対側から抜止め防止用ボルト２６を螺合できるようになっているピン接合部材２５とからなり、上述したクランプ本体２１で建地４ａを挟み込み、かかる状態でナット２３を締め付けることで建地４ａにしっかりと固定できるようになっているとともに、ピン接合部材２５に形成されたボルト孔２８に挿通された接合ボルト３３をブレース部材１３やアーム部材１４のボルト孔２９に挿通してボルト接合できるようになっている。そして、かかる構成により、ブレース部材１３及びアーム部材１４、ひいては第１の支持ブラケット２ａ全体を鉛直軸線廻りに回動できるようになっているとともに、ブレース部材１３及びアーム部材１４を水平軸線回りに回動し、ひいては作業床受け１５の高さを調整できるようになっている。なお、ブレース部材１３及びアーム部材１４を水平軸線回りに回動させることで作業床受け１５の高さを調整する際には、クランプ部材１１，１２、例えば下段のクランプ部材１１の取付け高さの調整も併せて行う。
【００３３】
図４は、建地４ａに上下二段に２つのクランプ部材１１，１２を取り付けるとともに、下段のクランプ部材１１にブレース部材１３を、上段のクランプ部材１２にアーム部材１４をそれぞれ接合した様子を示した斜視図である。
【００３４】
一方、作業床受け１５は図５に詳細に示すように、底板裏面にボルト挿入体４３ａ，４３ｂを所定の隙間をあけて同軸に固定された溝状の受け本体４２と、該隙間にボルト挿入体４３ａ，４３ｂと同軸に挿入されるボルト挿入部４６が頂部に設けられアーム先端に穿孔された円形挿入孔に差し込んだ状態で下端近傍に設けられたリング状の溝４７に引抜き防止用の割りピン（図示せず）を嵌め込むようになっている円筒状差込みロッド４５とからなり、受け本体４２は、円筒状差込みロッド４５の材軸回りの回動とボルト挿入部４６とのピン接合とにより、同図(c)に示すように、鉛直軸線廻りに回動自在でかつ水平軸線廻りに揺動できるようになっている。
【００３５】
第１の作業床３ａは、その外縁を構成するフレーム６の短手側側面に突設されたフック７，７を、一対の建地４ａ，４ａを水平に相互連結する第１の連結管５ａに掛けることにより、水平軸線廻りに回動できるようになっており、水平位置に回転させたときには、フレーム６の直下に作業床受け１５がくるように、第１の支持ブラケット２ａ，２ａを鉛直軸線廻りに回転させるとともにクランプ部材１１，１２の取付け高さを調整して作業床受け１５の受け本体４２にフレーム６を嵌め込むことで、第１の支持ブラケット２ａ，２ａは第１の連結管５ａとともに、第１の作業床３ａの荷重を支持できるようになっている。
【００３６】
ここで、第１の連結管５に直交しかつ地表面と平行な仮想線を足場軸線と定義するとともに、第１の作業床３ａが足場軸線方向に長い矩形状とし、したがって、その長手方向が足場軸線と平行で、短手方向が足場軸線と直交するものとして以下説明する。後述する第２の作業床３ｂについても同様である。
【００３７】
ちなみに、第１の支持ブラケット２ａ，２ａとフレーム６の長手方向側面とが平行になる状態では、作業床受け１５とフレーム６との間に一定の水平距離があり、この状態では第１の作業床３ａを水平支持することができない。そのため、第１の支持ブラケット２ａ，２ａを上述した平行位置よりも若干内側に回転させる必要があるが、受け本体４２が鉛直軸線廻りに回動自在であるため、第１の支持ブラケット２ａ，２ａとフレーム６の長手方向側面とが非平行となっても、何ら問題とはならない。
【００３８】
また、クランプ部材１１，１２の取付け高さによってはアーム部材１４が水平にならず、したがってフレーム６とは非平行の状態になるが、受け本体４２が水平軸線廻りに揺動自在であるため、第１の支持ブラケット２ａ，２ａとフレーム６の長手方向側面とが非平行となっても、やはり何ら問題とはならない。
【００３９】
また、第１の作業床３ａは、上述した構成によって鉛直位置に回転させることができるようになっているが、該鉛直姿勢にて該作業床のフック７が第１の連結管５ａから外れることがないよう、フレーム６の長手方向側面基部には、脱落防止ガード５１をビス５２で固定し、該脱落防止ガードとフレーム６の長手方向側面との隙間に脱落防止部材５３を挿入するとともに、脱落防止ガード５１に穿孔されたネジ孔５６に蝶ネジ５７をねじ込み、該蝶ネジを脱落防止部材５３に形成された長孔５５に挿通した上でフレーム６にねじ込むことで脱落防止部材５３を長孔５５の長さだけ、フレーム６の側面に沿って摺動自在となるように構成してある。
【００４０】
脱落防止部材５３には、第１の作業床３ａの短手側側面に突設されたフック７とは反対の側から第１の連結管５ａを係止する係止片５４を設けてあり、図７に示すように、第１の作業床３ａのフック７を第１の連結管５ａに掛けるときには、脱落防止部材５３を後退方向に摺動させておくが（同図(a)）、鉛直位置に回転させる場合には、蝶ネジ５７を緩めて前進方向に摺動させ、係止片５４とフック７との間に第１の連結管５ａを挟み込むことができるようになっている（同図(b)）。
【００４１】
一方、第２の支持ブラケット２ｂ，２ｂは、一対の建地４ａ，４ａから足場軸線に沿って離間した位置にて互いに対向するように立設された一対の建地４ｂ，４ｂのそれぞれに上下二段に取り付けられる２つのクランプ部材１１，１２と、該クランプ部材のうち、下段のクランプ部材１１に接合されたブレース部材１３と、上段のクランプ部材１２に接合されたアーム部材１４とから構成するとともに、ブレース部材１３の先端を水平軸線廻りに回動自在となるようにアーム部材１３の先端近傍にピン接合し、アーム部材１４の先端上面には作業床受け１５を設けてある。
【００４２】
なお、クランプ部材１１，１２は、取り付ける対象が建地４ｂである点を除いては、図３、図４を参照して既に説明した通りなので、ここではその説明を省略する。また、作業床受け１５も、荷重を受ける対象が第２の作業床３ｂである点を除いては、図５を参照して既に説明した通りなので、ここではその説明を省略する。
【００４３】
第２の作業床３ｂは、その外縁を構成するフレーム６の短手側側面に突設されたフック７，７を、一対の建地４ｂ，４ｂを水平に相互連結する第２の連結管５ｂに掛けることにより、水平軸線廻りに回動できるようになっており、水平位置に回転させたときには、フレーム６の直下に作業床受け１５がくるように、第２の支持ブラケット２ｂ，２ｂを鉛直軸線廻りに回転させるとともにクランプ部材１１，１２の取付け高さを調整して作業床受け１５の受け本体４２にフレーム６を嵌め込むことで、第２の支持ブラケット２ｂ，２ｂは第２の連結管５ｂとともに、第２の作業床３ｂの荷重を支持できるようになっている。
【００４４】
ちなみに、第２の支持ブラケット２ｂ，２ｂとフレーム６の長手方向側面とが平行になる状態では、作業床受け１５とフレーム６との間に一定の水平距離があり、この状態では第２の作業床３ｂを水平支持することができない。そのため、第２の支持ブラケット２ｂ，２ｂを上述した平行位置よりも若干内側に回転させる必要があるが、受け本体４２が鉛直軸線廻りに回動自在であるため、第２の支持ブラケット２ｂ，２ｂとフレーム６の長手方向側面とが非平行となっても、何ら問題とはならない。
【００４５】
また、クランプ部材１１，１２の取付け高さによってはアーム部材１４が水平にならず、したがってフレーム６とは非平行の状態になるが、受け本体４２が水平軸線廻りに揺動自在であるため、第２の支持ブラケット２ｂ，２ｂとフレーム６の長手方向側面とが非平行となっても、やはり何ら問題とはならない。
【００４６】
また、第２の作業床３ｂは、上述した構成によって鉛直位置に回転させることができるようになっているが、該鉛直姿勢にて該作業床のフック７が第２の連結管５ｂから外れることがないよう、フレーム６の長手方向側面基部には、脱落防止ガード５１をビス５２で固定し、該脱落防止ガードとフレーム６の長手方向側面との隙間に脱落防止部材５３を挿入するとともに、脱落防止ガード５１に穿孔されたネジ孔５６に蝶ネジ５７をねじ込み、該蝶ネジを脱落防止部材５３に形成された長孔５５に挿通した上でフレーム６にねじ込むことで脱落防止部材５３を長孔５５の長さだけ、フレーム６の側面に沿って摺動自在となるように構成してある。
【００４７】
なお、脱落防止部材５３については既に説明したので、ここではその説明を省略する。
【００４８】
本実施形態に係る足場構造１においては、第１の支持ブラケット２ａ，２ａは、互いに対向するように立設された一対の建地４ａ，４ａにそれぞれ取り付けられ、鉛直軸線廻りに回動自在に構成してある。また、第１の作業床３ａは、かかる一対の建地４ａ，４ａを水平に相互連結する第１の連結管５ａに水平軸線廻りに回動自在に取付けられ、上述した第１の支持ブラケット２ａ，２ａでそれぞれ水平支持される。
【００４９】
第２の支持ブラケット２ｂ、２ｂ及び第２の作業床３ｂもほぼ同様であるが、これらは、第１の支持ブラケット２ａ，２ａ及び第１の作業床３ａと対称配置してあるとともに、第１の連結管５ａと第２の連結管５ｂとは、例えば、通常の足場布板を取り付けるのに必要な長さに相当する距離だけ離間しており、この場合には、第１の作業床３ａと第２の作業床３ｂは、それぞれ通常の足場布板の半分の長さとすればよい。
【００５０】
かかる構成において、建築資材等の搬出入を行わないときには、図８に示すように第１の作業床３ａ及び第２の作業床３ｂを水平姿勢とした上、これらを第１の支持ブラケット２ａ，２ａ及び第２の支持ブラケット２ｂ，２ｂでそれぞれ水平支持する。
【００５１】
このようにすると、第１の作業床３ａ及び第２の作業床３ｂの上には、連続した安全通路が形成される。
【００５２】
一方、建築資材や仮設資材の搬出入が必要なときには、第１の作業床３ａと第２の作業床３ｂとを図９に示すように、互いに逆方向に回転させて跳ね上げる。
【００５３】
このようにすると、一対の建地４ａ，４ａと一対の建地４ｂ，４ｂの間には、足場軸線と直交する搬出入路６１が形成される。なお、第１の支持ブラケット２ａ，２ａ及び第２の支持ブラケット２ｂ，２ｂは、搬出入の邪魔にならぬよう、鉛直軸線廻りに適宜回転させておく。
【００５４】
以上説明したように、本実施形態に係る足場構造１によれば、建築資材等の搬出入を行わないときには、第１の作業床３ａ及び第２の作業床３ｂを水平姿勢とした上、これらを第１の支持ブラケット２ａ，２ａ及び第２の支持ブラケット２ｂ，２ｂでそれぞれ水平支持することができるので、第１の作業床３ａ及び第２の作業床３ｂの上を連続した安全通路として使用することが可能となる一方、建築資材や仮設資材の搬出入が必要なときには、第１の作業床３ａと第２の作業床３ｂとを互いに逆方向に回転させて跳ね上げることによって、一対の建地４ａ，４ａと一対の建地４ｂ，４ｂの間に搬出入路６１を形成することが可能となり、かくして、作業員は、該搬出入路を通って建築資材等を担いだまま、安全に無理なく搬出入を行うことができる。
【００５５】
また、本実施形態に係る足場構造によれば、脱落防止部材５３によって第１の作業床３ａや第２の作業床３ｂを鉛直姿勢となるように回転させたとき、該各作業床が第１の連結管５ａや第２の連結管５ｂから外れて落下するのを未然に防止することが可能となる。
【００５６】
本実施形態では特に言及しなかったが、第１の作業床３ａ、第２の作業床３ｂを鉛直位置に回転させたとき、それらの倒れを以下の構成で防止するようにしてもよい。
【００５７】
すなわち、図１０に示すように、第１の作業床３ａの外縁を構成するフレーム６の長手方向側面先端近傍には倒れ防止部材７１を設けてある。
【００５８】
かかる倒れ防止部材７１は、一対の三角形状平板７２，７２をフレーム高さだけ離間させた状態で補強板７３で相互接合し、該三角形状平板でフレーム６を挟み込むようにしてピン７４でフレーム６に接合してある。なお、第２の作業床３ｂについても、倒れ防止部材７１を同様に設けておく。
【００５９】
かかる構成においては、第１の作業床３ａ、第２の作業床３ｂを開閉する際は、建地４ａ，４ｂにぶつからないように図１１(a)のようにフレーム６側に倒れ防止部材７１をピン７４を中心として回転させることでフレーム側に待避させておき、鉛直姿勢を保持したいときには、同図(b)に示すように倒れ防止部材７１を建地４ａ，４ｂ側に回転させ、三角形状平板７２，７２の先端で建地４ａ，４ｂを挟み込むことで、第１の作業床３ａを建地４ａに、第２の作業床３ｂを建地４ｂに仮連結する。
【００６０】
かかる構成によれば、上述した仮連結によって第１の作業床３ａ、第２の作業床３ｂの鉛直姿勢を保持することが可能となる。また、安全通路の行き止まりを示すとともに、鉛直姿勢を保持している第１の作業床３ａ、第２の作業床３ｂは、それぞれ転落防止手段としての機能を果たす。
【００６１】
また、本実施形態では、第１の支持ブラケット２ａ、第２の支持ブラケット２ｂを、クランプ部材１１，１２、ブレース部材１３及びアーム部材１４で概ね構成したが、これらに代えて、図１２で示したブラケット８１を第１の支持ブラケット、第２の支持ブラケットとしてもよい。
【００６２】
ブラケット８１は同図に示すように、建地４ａや建地４ｂに上下二段に固定される２つのクランプ部材８４，８５と、該クランプ部材に鉛直軸線廻りに回動自在となるようにピン接合された三角形状支持ブラケット本体８２と、該三角形状支持ブラケット本体の先端に設けられた雌ネジ部８３と、該雌ネジ部に螺合され作業床受け８６が頂部に取り付けられた高さ調整ネジ８７とから構成してある。ここで、作業床受け８６は、鉛直軸線廻りに回動自在となるように取り付けてあり、ブラケット８１と第１の作業床３ａや第２の作業床３ｂとの非平行に対応できるようになっている。
【００６３】
かかる構成においては、ブラケット８１を鉛直軸線廻りに回転させた上、第１の作業床３ａや第２の作業床３ｂのフレームを該ブラケットの作業床受け８６で受けるようにすればよい。作業床受け８６の高さ調整が必要ならば、高さ調整ネジ８７を適宜回転させればよい。
【００６４】
また、本実施形態では、第１の作業床３ａや第２の作業床３ｂが第１の連結管５ａや第２の連結管５ｂから外れないよう、脱落防止ガード５１を該作業床のフレーム６に取り付けた上、該フレームと脱落防止ガード５１との隙間に脱落防止部材５３を摺動自在に設けるようにしたが、脱落防止ガード５１がなくとも脱落防止部材５３をフレーム６に沿って摺動させることができるのであれば、脱落防止ガード５１を省略してもよい。
【００６５】
図１３に脱落防止部材の変形例を示す。同図に係る脱落防止部材９１は同図(a)及び(b)でよくわかるように、第１の作業床３ａや第２の作業床３ｂのフレーム６の側方から嵌め込むことができるようにコの字断面状に形成してあるとともに、側面に形成された長孔５５に蝶ネジ５７を挿通し、該蝶ネジをフレーム６にねじ込むことにより、該フレームに沿って摺動自在となっている。
【００６６】
ここで、脱落防止部材９１には脱落防止部材５３と同様、第１の作業床３ａや第２の作業床３ｂの短手側側面に突設されたフック７とは反対の側から第１の連結管５ａや第２の連結管５ｂを係止する係止片５４を設けてあり、例えば第１の作業床３ａのフック７を第１の連結管５ａに掛けるときには、脱落防止部材９１を後退方向に摺動させておくが（同図(a)）、鉛直位置に回転させる場合には、蝶ネジ５７を緩めて前進方向に摺動させ、係止片５４とフック７との間に第１の連結管５ａを挟み込むことができるようになっている（同図(c)）。
【００６７】
かかる構成によれば、第１の作業床３ａや第２の作業床３ｂを鉛直姿勢となるように回転させたとき、該各作業床が第１の連結管５ａや第２の連結管５ｂから外れて落下するのを未然に防止することが可能となる。
【００６８】
また、本実施形態では、作業床受け１５を鉛直軸線廻りに回動自在でかつ水平軸線廻りに揺動できるように構成したが、第１の作業床３ａや第２の作業床３ｂの荷重を支持するにあたって、それらのフレームと作業床受けとの相対位置関係が予めわかっていて調整が不要な場合には、作業床受けをアーム１４に固定する構成としてもかまわない。
【００６９】
また、本実施形態では、脱落防止部材を設けることで第１の作業床や第２の作業床が第１の連結管あるいは第２の連結管から外れて落下するのを防止するようにしたが、かかるおそれがないのであれば、脱落防止部材を省略してもかまわない。また、倒れ防止部材を設けることで第１の作業床や第２の作業床の鉛直姿勢を保持するようにしたが、番線で縛るなど、別の方法で作業床の鉛直姿勢を保持できるのであれば、かかる倒れ防止部材を省略してもかまわない。
【００７０】
【発明の効果】
以上述べたように、本発明に係る足場構造によれば、建築資材等の搬出入を行わないときには、第１の作業床及び第２の作業床を水平姿勢とした上、これらを第１の支持ブラケット及び第２の支持ブラケットでそれぞれ水平支持することができるので、第１の作業床及び第２の作業床の上を連続した安全通路として使用することが可能となる一方、建築資材や仮設資材の搬出入が必要なときには、第１の作業床と第２の作業床とを互いに逆方向に回転させて跳ね上げることによって搬出入路を形成することが可能となり、かくして、作業員は、該搬出入路を通って建築資材等を担いだまま、安全に無理なく搬出入を行うことができる。
【００７１】
【図面の簡単な説明】
【図１】本実施形態に係る足場構造の全体斜視図。
【図２】本実施形態に係る支持ブラケットの側面図。
【図３】支持ブラケットを構成するクランプ部材の分解斜視図。
【図４】クランプ部材を取り付けた様子を示した斜視図。
【図５】作業床受けを示した図。
【図６】脱落防止部材を示した斜視図。
【図７】脱落防止部材の作用を示した側面図。
【図８】本実施形態に係る足場構造の作用を示した全体側面図。
【図９】同じく全体側面図。
【図１０】倒れ防止部材の取付け状況を示した図。
【図１１】倒れ防止部材の作用を示した斜視図。
【図１２】支持ブラケットの変形例を示した斜視図。
【図１３】脱落防止部材の変形例を示した図で、(a)は側面図、(b)はＡ−Ａ線に沿う断面図、(c)は第１の作業床３ａを鉛直姿勢に回転させたときの様子を示した図。
【符号の説明】
１足場構造
２ａ第１の支持ブラケット
２ｂ第２の支持ブラケット
３ａ第１の作業床
３ｂ第２の作業床
４ａ、４ｂ建地
５ａ第１の連結管
５ｂ第２の連結管
６フレーム
７フック
１１，１２クランプ部材
１３ブレース部材
１４アーム部材
１５作業床受け
５３，９１脱落防止部材
７１倒れ防止部材
８１ブラケット（第１、第２の支持ブラケット）[0001]
BACKGROUND OF THE INVENTION
The present invention mainly relates to a scaffold structure provided at a place where materials and the like are carried in and out.
[0002]
[Prior art]
When constructing a house, it is common to build a scaffold using the scaffolding while assembling a scaffold around the place where the house will be built. Various building materials are required, and temporary materials must be carried in and out as the construction progresses.
[0003]
On the other hand, in the case of a house that is a relatively small-scale building, regardless of a large-scale building, it is not possible to provide a special opening in the scaffolding for carrying in and out the building materials and temporary materials described above. rare.
[0004]
For this reason, conventionally, workers carry in building materials or the like so as to pass under the scaffolding cloth board, or temporarily remove the scaffolding cloth board.
[0005]
[Patent Document 1]
JP 2002-38708 A
[Patent Document 2]
Japanese Unexamined Patent Publication No. 2000-129911
[Patent Document 3]
Japanese Patent Laid-Open No. 11-193626
[Patent Document 4]
JP 11-62223 A
[Patent Document 5]
JP-A-8-333889
[Patent Document 6]
Japanese Patent No. 3289667
[0006]
[Problems to be solved by the invention]
However, the method of carrying in and out under the scaffolding cloth board while carrying building materials etc. is not only inconvenient, but also the worker falls down due to the building material etc. unexpectedly hitting the scaffolding cloth board. Or the worker himself bumps his / her head against the scaffolding board, and the worker's safety cannot be ensured.
[0007]
In addition, the method of temporarily removing the scaffold fabric board requires time and effort for removal and reattachment, and the state where the safety passage was secured before the removal is safe at the removal site by removing the scaffold fabric board. Since the passage will be divided, by attaching handrails on both sides of the removed scaffolding cloth board, the worker must be informed that the safety passage is dead end there and prevent the worker from falling There was also a problem.
[0008]
In addition, some workers temporarily place the removed scaffolding cloth on the adjacent scaffolding cloth. In such a case, the safety passage becomes extremely dangerous, and the removed scaffolding cloth is temporarily placed on the ground. In such a case, not only does it interfere with the work, but it becomes dirty and slippery, so that there is still a problem in ensuring safety after reattachment.
[0009]
The present invention has been made in consideration of the above-mentioned circumstances, and when carrying in and out of building materials and temporary materials, it is possible to carry in and out without feeling the inconvenience without removing the scaffolding cloth board. The aim is to provide a possible scaffold structure.
[0010]
[Means for Solving the Problems]
In order to achieve the above object, a scaffold structure according to the present invention is a first structure that can rotate about a vertical axis that is respectively attached to a pair of building structures that are erected so as to face each other. A first work floor that is pivotally mounted around a horizontal axis and is horizontally supported by the first support bracket, to a first connecting pipe that horizontally interconnects the pair of building sites. Vertical axes that are respectively attached to a pair of buildings that are erected so as to face each other at a position spaced from the pair of buildings along a scaffold axis that is orthogonal to the first connection pipe and parallel to the ground surface A second support bracket that is rotatable around and a second support bracket that is pivotally attached to a second connecting pipe that horizontally interconnects the pair of building sites and is horizontally supported by the second support bracket. When it consists of a work floor The first work floor and the second work floor, and the first support bracket and the second support bracket are arranged symmetrically with each other, and the first work floor and the second work floor When the work floors are rotated to the horizontal position, a continuous safety passage is formed on the work floors, and the first work floor and the second work floor are rotated to the vertical position. A carry-in / out path perpendicular to the scaffold axis is formed between the first connecting pipe and the second connecting pipe.
[0011]
Further, the scaffold structure according to the present invention includes two clamp members for fixing the first support bracket and the second support bracket to the building in two upper and lower stages, and the lower of the clamp members. A brace member that is pin-joined so as to be rotatable around the vertical axis and the horizontal axis on the clamp member, and a pin-joint that is pivotable around the vertical axis and the horizontal axis on the upper clamp member. An arm member, and the brace member has a tip joined to the vicinity of the tip of the arm member so as to be rotatable about a horizontal axis, and a work floor support is provided on the top surface of the arm member. It is.
[0012]
Further, the scaffold structure according to the present invention includes the first support bracket and the second support bracket that are fixed to the building in two upper and lower stages, and the clamp member around the vertical axis. A triangular support bracket body that is pin-joined so as to be rotatable, and a female screw portion having a height adjustment screw screwed to the tip of the triangular support bracket body is provided. A work floor support is provided at the top.
[0013]
The scaffold structure according to the present invention is configured such that the work floor support is rotatable about a vertical axis and a horizontal axis.
[0014]
The scaffold structure according to the present invention is slidable along the side surface base to the side surface base parallel to the scaffold axis among the frames constituting the outer edges of the first work floor and the second work floor. When the first work floor and the second work floor are rotated to a vertical position, the first connection pipe is lowered by lowering the drop-off prevention member vertically downward. The second connecting pipe is sandwiched between a hook projecting on a side surface of the frame perpendicular to the scaffold axis and the drop-off preventing member.
[0015]
Further, the scaffold structure according to the present invention is provided with a fall-preventing member at a side end parallel to the scaffold axis among the frames constituting the outer edges of the first work floor and the second work floor, When the first work floor and the second work floor are rotated to a vertical position, the fall prevention member can be temporarily connected to the building.
[0016]
In the scaffold structure according to the present invention, the first support brackets are respectively attached to a pair of building erected so as to face each other, and are configured to be rotatable around a vertical axis. Further, the first work floor is attached to a first connecting pipe that horizontally connects the pair of building sites so as to be rotatable about a horizontal axis, and is horizontally supported by the first support bracket described above. .
[0017]
The second support bracket and the second work floor are substantially the same, but they are symmetrically arranged with respect to the first support bracket and the first work floor, and the first connection pipe and the second connection floor. For example, the pipe is separated from the pipe by a distance corresponding to a length necessary for attaching a normal scaffolding cloth board. In this case, the first work floor and the second work floor are each a normal work floor. What is necessary is just to make it the length of half of a scaffolding cloth board.
[0018]
In such a configuration, when it is necessary to carry in / out the building material or temporary material, the first work floor and the second work floor are rotated in the opposite directions to flip up.
[0019]
In this way, since the loading / unloading path is formed near the center, the worker can safely carry out loading / unloading safely while carrying the building materials and the like through the loading / unloading path. Note that the first support bracket and the second support bracket are appropriately rotated around the vertical axis so as not to interfere with loading and unloading.
[0020]
On the other hand, when building materials and the like are not carried in and out, the first work floor and the second work floor are rotated in the opposite directions to obtain a horizontal posture, and these are used as the first support bracket and the second support bracket. Support each horizontally.
[0021]
In this way, a continuous safety passage is formed on the first work floor and the second work floor.
[0022]
How the first support bracket and the second support bracket are configured is arbitrary. For example, two clamp members that are fixed to the building in two upper and lower stages, and the lower of the clamp members A brace member that is pin-bonded to the upper clamp member so as to be rotatable about the vertical axis and a horizontal axis, and a pin-joint that is rotatable to the upper clamp member about the vertical axis and the horizontal axis. The brace member is pin-joined in the vicinity of the tip of the arm member so as to be rotatable around a horizontal axis, and a work floor support is provided on the top surface of the tip of the arm member. It can be configured.
[0023]
In such a configuration, the height of the working bed support is adjusted by adjusting only the mounting height of the clamp member to which the brace member is pin-joined without adjusting the mounting height of the upper and lower clamp members. be able to.
[0024]
In addition, it is composed of two clamp members fixed to the building in two upper and lower stages, and a triangular support bracket body that is pin-connected to the clamp members so as to be rotatable about a vertical axis, A female screw part into which a height adjusting screw is screwed can be provided at the tip of the shape support bracket body, and a work floor support can be provided on the top of the height adjusting screw.
[0025]
In such a configuration, the height of the work floor support can be adjusted by turning the height adjusting screw.
[0026]
In each of the above-described support brackets, if the work floor support is made to be rotatable about the vertical axis and the horizontal axis, there is no concern that the load from the work floor is biased and acts on the work floor support. It becomes possible to stably support the load from the floor.
[0027]
If the first work floor and the second work floor can be held in a vertical posture, the work floor may be rotatably attached to the first connection pipe or the second connection pipe. Among the frames constituting the outer edges of the first work floor and the second work floor, a drop-off preventing member that is slidable along the side base is attached to a side base parallel to the scaffold axis. When the work floor of 1 and the second work floor are rotated to the vertical position, the drop-off prevention member is moved vertically downward to connect the first connection pipe and the second connection pipe to the frame. Of these, if the hook projecting on the side surface orthogonal to the scaffold axis and the drop-off preventing member are sandwiched between the first working floor and the second working floor, To reliably prevent the second work floor from falling off the connecting pipe. It can become.
[0028]
In addition, the means for holding the first work floor and the second work floor in a vertical posture is arbitrary, but the scaffold axis among the frames constituting the outer edges of the first work floor and the second work floor. A fall prevention member is provided at a side end parallel to the first work floor, and when the first work floor and the second work floor are rotated to a vertical position, the fall prevention member can be temporarily connected to the building site. If configured, the first work floor and the second work floor can be prevented from falling down, and the work floor shows a dead end of the safety passage and falls to prevent the worker from falling. It also serves as a prevention means.
[0029]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the scaffold structure according to the present invention will be described below with reference to the accompanying drawings. Note that components that are substantially the same as those of the prior art are assigned the same reference numerals, and descriptions thereof are omitted.
[0030]
FIG. 1 is an overall perspective view of the scaffold structure according to the present embodiment. As can be seen from the figure, the scaffold structure 1 according to this embodiment includes a first support bracket 2a, 2a, a first work floor 3a horizontally supported by the support bracket, a second support bracket 2b, 2b, The second work floor 3b is horizontally supported by the support bracket, and the first support brackets 2a and 2a and the second support brackets 2b and 2b, the first work floor 3a and the second work floor 3b, Are arranged symmetrically so as to face each other.
[0031]
As shown in detail in FIG. 2, the first support bracket 2 a includes two clamp members 11 and 12 that are attached in two upper and lower stages to each of a pair of building sites 4 a and 4 a that are erected so as to face each other. Among the clamp members, a brace member 13 joined to the lower clamp member 11 and an arm member 14 joined to the upper clamp member 12, and the tip of the brace member 13 is rotated around a horizontal axis. A pin is joined in the vicinity of the tip of the arm member 13 so as to be free, and a work floor receiver 15 is provided on the top surface of the tip of the arm member 14.
[0032]
Here, as shown in detail in FIG. 3, the clamp members 11 and 12 are hinged to the semi-cylindrical bodies 30a and 30b and fixed pieces 31a and 31b respectively extended from the respective edges of the semi-cylindrical bodies. Among them, the male screw 22 erected on one fixed piece 31a is inserted into the notch formed on the other fixed piece 31b, and the nut 23 is screwed onto the male screw 22 in this state. A clamp body 21 and a female thread portion 32 inserted through a ring 27 into a hollow interior of a cylindrical body 24 fixed to the outer peripheral surface of a semi-cylindrical body 30a constituting the clamp body by welding or the like are inserted into the cylindrical body 24. In this state, it comprises a pin joint member 25 that can be screwed into the retaining prevention bolt 26 from the opposite side. The building body 4a is sandwiched by the clamp body 21 described above, and the By tightening the bolt 23, the bolt can be firmly fixed to the building 4 a, and the joint bolt 33 inserted into the bolt hole 28 formed in the pin joint member 25 is connected to the bolt hole 29 of the brace member 13 or the arm member 14. It can be bolted by being inserted into With this configuration, the brace member 13 and the arm member 14, and thus the entire first support bracket 2a can be rotated about the vertical axis, and the brace member 13 and the arm member 14 can be rotated about the horizontal axis. Thus, the height of the work floor receiver 15 can be adjusted. When adjusting the height of the work floor receiver 15 by rotating the brace member 13 and the arm member 14 about the horizontal axis, the mounting height of the clamp members 11, 12, for example, the lower clamp member 11 is adjusted. Also make adjustments.
[0033]
FIG. 4 shows a state where two clamp members 11, 12 are attached to the building 4 a in two upper and lower stages, a brace member 13 is joined to the lower clamp member 11, and an arm member 14 is joined to the upper clamp member 12. FIG.
[0034]
On the other hand, as shown in detail in FIG. 5, the work floor receiver 15 has a groove-shaped receiving body 42 in which bolt inserts 43a and 43b are fixed coaxially with a predetermined gap on the back surface of the bottom plate, and bolts are inserted into the gap. A bolt insertion portion 46 inserted coaxially with the bodies 43a, 43b is provided at the top and inserted into a circular insertion hole drilled at the tip of the arm, and a ring-shaped groove 47 provided in the vicinity of the lower end is provided with a split for preventing pull-out. It comprises a cylindrical insertion rod 45 into which a pin (not shown) is fitted, and the receiving body 42 is configured to rotate around the material axis of the cylindrical insertion rod 45 and to join the pin with the bolt insertion portion 46. Thus, as shown in FIG. 5C, the rotary shaft can be rotated about the vertical axis and can be swung about the horizontal axis.
[0035]
The first work floor 3a has a first connecting pipe 5a that horizontally connects the pair of building sites 4a and 4a with hooks 7 and 7 that are provided on the short side surface of the frame 6 that constitutes the outer edge of the first working floor 3a. The first support brackets 2a and 2a are vertically moved so that the work floor support 15 comes directly under the frame 6 when rotated to the horizontal position. The first support brackets 2 a and 2 a are connected to the first connecting pipe by rotating around the axis and adjusting the mounting height of the clamp members 11 and 12 and fitting the frame 6 into the receiving body 42 of the work floor receiver 15. Together with 5a, the load on the first work floor 3a can be supported.
[0036]
Here, an imaginary line orthogonal to the first connecting pipe 5 and parallel to the ground surface is defined as a scaffold axis, and the first work floor 3a is formed in a rectangular shape that is long in the scaffold axis direction. The following description will be made assuming that the transverse direction is parallel to the scaffold axis and the transverse direction is orthogonal to the scaffold axis. The same applies to the second work floor 3b described later.
[0037]
Incidentally, in a state where the first support brackets 2a, 2a and the longitudinal side surface of the frame 6 are parallel, there is a certain horizontal distance between the work floor receiver 15 and the frame 6, and in this state the first work The floor 3a cannot be supported horizontally. Therefore, it is necessary to rotate the first support brackets 2a and 2a slightly inward from the above-described parallel position, but the first support brackets 2a and 2a are capable of rotating around the vertical axis. Even if the longitudinal side surface of the frame 6 becomes non-parallel, there is no problem.
[0038]
Further, depending on the mounting height of the clamp members 11 and 12, the arm member 14 may not be horizontal, and therefore is in a non-parallel state with the frame 6, but the receiving body 42 can swing around the horizontal axis, Even if the first support brackets 2a, 2a and the longitudinal side surface of the frame 6 are non-parallel, there is no problem.
[0039]
Further, the first work floor 3a can be rotated to the vertical position by the above-described configuration, but the hook 7 of the work floor is detached from the first connecting pipe 5a in the vertical posture. A drop prevention guard 51 is fixed to the longitudinal side surface of the frame 6 with a screw 52 so that the fall prevention member 53 is inserted into a gap between the fall prevention guard and the longitudinal side surface of the frame 6. A wing screw 57 is screwed into a screw hole 56 drilled in the prevention guard 51, and the wing screw is inserted into a long hole 55 formed in the detachment prevention member 53, and then screwed into the frame 6, whereby the detachment prevention member 53 is elongated. The length 55 is configured to be slidable along the side surface of the frame 6.
[0040]
The drop-off prevention member 53 is provided with a locking piece 54 that locks the first connecting pipe 5a from the side opposite to the hook 7 protruding on the short side surface of the first work floor 3a. As shown in FIG. 7, when the hook 7 of the first work floor 3a is hooked on the first connecting pipe 5a, the drop-off prevention member 53 is slid in the backward direction (FIG. 7A), but the vertical When rotating to the position, the thumbscrew 57 is loosened and slid in the forward direction so that the first connecting pipe 5a can be sandwiched between the locking piece 54 and the hook 7 (same as above). Figure (b)).
[0041]
On the other hand, the second support brackets 2b and 2b are vertically moved to a pair of building sites 4b and 4b that are erected so as to face each other at positions separated from the pair of building sites 4a and 4a along the scaffold axis. Two clamp members 11, 12 attached in two stages, a brace member 13 joined to the lower clamp member 11 among the clamp members, and an arm member 14 joined to the upper clamp member 12. At the same time, the front end of the brace member 13 is pin-joined in the vicinity of the front end of the arm member 13 so as to be rotatable around the horizontal axis, and a work floor support 15 is provided on the upper end of the front end of the arm member 14.
[0042]
Since the clamp members 11 and 12 are already described with reference to FIGS. 3 and 4 except that the object to be attached is the building site 4b, the description thereof is omitted here. Further, since the work floor receiver 15 is the same as already described with reference to FIG. 5 except that the object to receive the load is the second work floor 3b, the description thereof is omitted here.
[0043]
The second work floor 3b is a second connection pipe 5b that horizontally connects the pair of building sites 4b and 4b to the hooks 7 and 7 that protrude from the short side surface of the frame 6 that constitutes the outer edge of the second work floor 3b. The second support brackets 2b and 2b can be moved vertically so that the work bed support 15 comes directly under the frame 6 when rotated to the horizontal position. The second support brackets 2b and 2b are connected to the second connecting pipe by rotating around the axis and adjusting the mounting height of the clamp members 11 and 12 and fitting the frame 6 into the receiving body 42 of the work floor receiver 15. Together with 5b, the load on the second work floor 3b can be supported.
[0044]
Incidentally, when the second support brackets 2b and 2b and the longitudinal side surface of the frame 6 are parallel to each other, there is a certain horizontal distance between the work floor receiver 15 and the frame 6, and in this state the second work The floor 3b cannot be supported horizontally. Therefore, it is necessary to rotate the second support brackets 2b and 2b slightly inward from the parallel position described above, but the second support brackets 2b and 2b are capable of rotating around the vertical axis. Even if the longitudinal side surface of the frame 6 becomes non-parallel, there is no problem.
[0045]
Further, depending on the mounting height of the clamp members 11 and 12, the arm member 14 may not be horizontal, and therefore is in a non-parallel state with the frame 6, but the receiving body 42 can swing around the horizontal axis, Even if the second support brackets 2b, 2b and the longitudinal side surface of the frame 6 are non-parallel, there is no problem.
[0046]
In addition, the second work floor 3b can be rotated to a vertical position by the above-described configuration, but the hook 7 of the work floor is detached from the second connecting pipe 5b in the vertical posture. A drop prevention guard 51 is fixed to the longitudinal side surface of the frame 6 with a screw 52 so that the fall prevention member 53 is inserted into a gap between the fall prevention guard and the longitudinal side surface of the frame 6. A wing screw 57 is screwed into a screw hole 56 drilled in the prevention guard 51, and the wing screw is inserted into a long hole 55 formed in the detachment prevention member 53, and then screwed into the frame 6, whereby the detachment prevention member 53 is elongated. The length 55 is configured to be slidable along the side surface of the frame 6.
[0047]
Since the drop-off preventing member 53 has already been described, the description thereof is omitted here.
[0048]
In the scaffold structure 1 according to the present embodiment, the first support brackets 2a and 2a are respectively attached to a pair of building sites 4a and 4a that are erected so as to face each other, and are rotatable about a vertical axis. It is configured. The first work floor 3a is attached to a first connection pipe 5a that horizontally connects the pair of building sites 4a and 4a so as to be rotatable around a horizontal axis, and the first support bracket 2a described above. , 2a are supported horizontally.
[0049]
The second support brackets 2b, 2b and the second work floor 3b are substantially the same, but they are symmetrically arranged with respect to the first support brackets 2a, 2a and the first work floor 3a, and the first work bracket 3b. For example, the connecting pipe 5a and the second connecting pipe 5b are separated by a distance corresponding to a length necessary for attaching a normal scaffolding cloth board. In this case, the first work floor 3a is separated. The second work floor 3b may be half as long as a normal scaffolding cloth board.
[0050]
In such a configuration, when the building materials are not carried in / out, as shown in FIG. 8, the first work floor 3a and the second work floor 3b are set in a horizontal posture, and these are used as the first support bracket 2a, 2a and second support brackets 2b and 2b are respectively supported horizontally.
[0051]
In this way, a continuous safety passage is formed on the first work floor 3a and the second work floor 3b.
[0052]
On the other hand, when it is necessary to carry in / out the building material or the temporary material, the first work floor 3a and the second work floor 3b are rotated up in opposite directions as shown in FIG.
[0053]
If it does in this way, the carrying in / out path 61 orthogonal to a scaffold axis line is formed between a pair of building land 4a, 4a and a pair of building land 4b, 4b. The first support brackets 2a and 2a and the second support brackets 2b and 2b are appropriately rotated around the vertical axis so as not to interfere with loading and unloading.
[0054]
As described above, according to the scaffold structure 1 according to the present embodiment, when the building material or the like is not carried in / out, the first work floor 3a and the second work floor 3b are set in a horizontal posture, and these Can be horizontally supported by the first support brackets 2a and 2a and the second support brackets 2b and 2b, respectively, so that the first work floor 3a and the second work floor 3b are used as a continuous safety passage. On the other hand, when it is necessary to carry in and out building materials and temporary materials, the first work floor 3a and the second work floor 3b are rotated in the opposite directions to jump up and down. It becomes possible to form a loading / unloading path 61 between the building areas 4a, 4a and the pair of building areas 4b, 4b, so that workers can safely carry building materials and the like through the loading / unloading path. Carrying in and out without difficulty It can be.
[0055]
Further, according to the scaffold structure according to the present embodiment, when the first work floor 3a and the second work floor 3b are rotated to the vertical posture by the drop-off prevention member 53, the respective work floors are the first. It is possible to prevent the connecting pipe 5a and the second connecting pipe 5b from falling off.
[0056]
Although not particularly mentioned in the present embodiment, when the first work floor 3a and the second work floor 3b are rotated to the vertical position, they may be prevented from collapsing with the following configuration.
[0057]
That is, as shown in FIG. 10, a fall prevention member 71 is provided in the vicinity of the front end of the side surface in the longitudinal direction of the frame 6 constituting the outer edge of the first work floor 3a.
[0058]
The fall prevention member 71 is formed by mutually joining a pair of triangular flat plates 72, 72 with a reinforcing plate 73 in a state where they are separated from each other by the frame height, and sandwiching the frame 6 between the triangular flat plates so that the frame 6 is pinned by pins 74. Is joined. In addition, the fall prevention member 71 is similarly provided also about the 2nd work floor 3b.
[0059]
In such a configuration, when the first work floor 3a and the second work floor 3b are opened and closed, the fall prevention member 71 on the frame 6 side as shown in FIG. 11 (a) is provided so as not to hit the building areas 4a and 4b. Is rotated around the pin 74 and retracted to the frame side, and when it is desired to maintain a vertical posture, the fall prevention member 71 is rotated to the building land 4a, 4b side as shown in FIG. By sandwiching the building sites 4a and 4b at the tips of the shape flat plates 72 and 72, the first work floor 3a is temporarily connected to the building site 4a, and the second work floor 3b is temporarily connected to the building site 4b.
[0060]
According to such a configuration, it is possible to maintain the vertical postures of the first work floor 3a and the second work floor 3b by the temporary connection described above. In addition, the first work floor 3a and the second work floor 3b, which indicate the dead end of the safety passage and hold the vertical posture, each function as a fall prevention means.
[0061]
In the present embodiment, the first support bracket 2a and the second support bracket 2b are generally configured by the clamp members 11 and 12, the brace member 13 and the arm member 14. However, instead of these, FIG. The bracket 81 may be a first support bracket or a second support bracket.
[0062]
As shown in the figure, the bracket 81 has two clamp members 84 and 85 fixed to the building 4a and the building 4b in two upper and lower stages, and a pin so that the clamp member can turn around a vertical axis. The joined triangular support bracket main body 82, the female screw portion 83 provided at the tip of the triangular support bracket main body, and the height adjustment in which the work floor support 86 is screwed into the female screw portion and attached to the top. The screw 87 is comprised. Here, the work floor support 86 is attached so as to be rotatable around the vertical axis, and can be adapted to be non-parallel between the bracket 81 and the first work floor 3a or the second work floor 3b. ing.
[0063]
In such a configuration, the bracket 81 is rotated about the vertical axis, and the frame of the first work floor 3a or the second work floor 3b is received by the work floor support 86 of the bracket. If it is necessary to adjust the height of the work floor support 86, the height adjusting screw 87 may be appropriately rotated.
[0064]
Further, in this embodiment, the drop-off prevention guard 51 is attached to the frame 6 of the work floor so that the first work floor 3a and the second work floor 3b do not come off from the first connection pipe 5a and the second connection pipe 5b. The drop-off prevention member 53 is slidably provided in the gap between the frame and the drop-off prevention guard 51, but the drop-off prevention member 53 is slid along the frame 6 without the drop-off prevention guard 51. If possible, the drop-off prevention guard 51 may be omitted.
[0065]
FIG. 13 shows a modification of the dropout prevention member. The drop-off prevention member 91 according to the figure can be fitted from the side of the frame 6 of the first work floor 3a or the second work floor 3b, as can be seen well in FIGS. The wing screw 57 is inserted into the long hole 55 formed on the side surface and the wing screw is screwed into the frame 6 so that it can slide along the frame. ing.
[0066]
Here, the drop-off prevention member 91 is similar to the drop-off prevention member 53 in that the first work floor 3a and the second work floor 3b are provided with the first from the side opposite to the hook 7 projecting from the short side surface. A locking piece 54 for locking the connecting pipe 5a and the second connecting pipe 5b is provided. For example, when the hook 7 of the first work floor 3a is hung on the first connecting pipe 5a, the drop-off prevention member 91 is moved backward. In the case of rotating to the vertical position, the thumbscrew 57 is loosened and slid in the forward direction, so that the One connecting pipe 5a can be sandwiched ((c) in the figure).
[0067]
According to this configuration, when the first work floor 3a and the second work floor 3b are rotated so as to be in the vertical posture, the work floors are separated from the first connection pipe 5a and the second connection pipe 5b. It is possible to prevent the falling and falling.
[0068]
In the present embodiment, the work floor receiver 15 is configured to be rotatable about the vertical axis and swingable about the horizontal axis. However, the load on the first work floor 3a and the second work floor 3b is applied. When supporting, if the relative positional relationship between these frames and the work floor support is known in advance and adjustment is not necessary, the work floor support may be fixed to the arm 14.
[0069]
In the present embodiment, the first work floor and the second work floor are prevented from falling off the first connection pipe or the second connection pipe by providing a drop prevention member, If there is no such risk, the drop-off preventing member may be omitted. Moreover, although the vertical posture of the first work floor or the second work floor is maintained by providing the fall prevention member, if the vertical posture of the work floor can be held by another method, such as binding with a wire, Such a fall prevention member may be omitted.
[0070]
【The invention's effect】
As described above, according to the scaffold structure according to the present invention, when the building material or the like is not carried in / out, the first work floor and the second work floor are set in the horizontal posture, and these are set in the first position. Since it can be horizontally supported by the support bracket and the second support bracket, it can be used as a continuous safety passage on the first work floor and the second work floor. When loading and unloading of materials is necessary, it becomes possible to form a loading / unloading path by rotating the first work floor and the second work floor in opposite directions and jumping up. It is possible to carry in and out safely and safely while carrying building materials and the like through the carry-in / out route.
[0071]
[Brief description of the drawings]
FIG. 1 is an overall perspective view of a scaffold structure according to the present embodiment.
FIG. 2 is a side view of a support bracket according to the present embodiment.
FIG. 3 is an exploded perspective view of a clamp member constituting a support bracket.
FIG. 4 is a perspective view showing a state in which a clamp member is attached.
FIG. 5 is a view showing a work floor receiver.
FIG. 6 is a perspective view showing a drop-off prevention member.
FIG. 7 is a side view showing the action of the drop-off preventing member.
FIG. 8 is an overall side view showing the operation of the scaffold structure according to the present embodiment.
FIG. 9 is an overall side view of the same.
FIG. 10 is a view showing a state of attachment of the fall prevention member.
FIG. 11 is a perspective view showing the operation of the fall prevention member.
FIG. 12 is a perspective view showing a modification of the support bracket.
FIGS. 13A and 13B are diagrams showing modifications of the drop-off prevention member, where FIG. 13A is a side view, FIG. 13B is a cross-sectional view taken along the line AA, and FIG. The figure which showed the mode when it was rotated.
[Explanation of symbols]
1 Scaffolding structure
2a First support bracket
2b Second support bracket
3a First work floor
3b Second work floor
4a, 4b
5a First connecting pipe
5b Second connecting pipe
6 frames
7 Hook
11,12 Clamp member
13 Brace members
14 Arm members
15 Work floor support
53, 91 Fall-off prevention member
71 Fall prevention member
81 Bracket (first and second support brackets)

Claims

Horizontally mounted on a first support bracket that can be pivoted around a vertical axis that is respectively attached to a pair of building sites that are erected so as to face each other, and a first connecting pipe that horizontally interconnects the pair of building sites A first work floor that is pivotally mounted about an axis and is horizontally supported by the first support bracket; and the pair of pairs along a scaffold axis that is orthogonal to the first connection pipe and parallel to the ground surface. A second support bracket that is rotatable about a vertical axis that is attached to each of a pair of buildings that are erected so as to face each other at a position spaced apart from the building, and the pair of buildings are interconnected horizontally. And a second work floor that is pivotally attached to the second connecting pipe and that is horizontally supported by the second support bracket, and the first work floor and the second work floor. And the first support bracket The second support brackets are arranged symmetrically to each other, and a continuous safety passage is formed on the work floor when the first work floor and the second work floor are rotated to a horizontal position. And a loading / unloading path perpendicular to the scaffold axis between the first connection pipe and the second connection pipe when the first work floor and the second work floor are rotated to a vertical position. A scaffold structure characterized in that is formed.

Two clamp members for fixing the first support bracket and the second support bracket to the building site in two upper and lower stages, and among the clamp members, the lower clamp member has a vertical axis and a horizontal axis. A brace member that is pin-joined so as to be freely rotatable, and an arm member that is pin-joined to the upper clamp member so as to be rotatable around a vertical axis and a horizontal axis. 2. The scaffold structure according to claim 1, wherein the end of the member is pin-joined in the vicinity of the end of the arm member so as to be rotatable about a horizontal axis, and a work floor support is provided on the upper surface of the end of the arm member.

The first support bracket and the second support bracket are joined to two clamp members fixed to the building in two steps, and are pin-joined to the clamp member so as to be rotatable about a vertical axis. A triangular support bracket main body, a female screw portion screwed with a height adjustment screw is provided at the tip of the triangular support bracket main body, and a work floor support is provided on the top of the height adjustment screw. The scaffold structure according to 1.

The scaffold structure according to claim 2 or 3, wherein the work floor support is rotatable about a vertical axis and a horizontal axis.

Of the frames constituting the outer edges of the first work floor and the second work floor, a fall prevention member slidable along the side base is attached to the side base parallel to the scaffold axis, When the first work floor and the second work floor are rotated to a vertical position, the first connection pipe and the second connection pipe are moved down by vertically lowering the drop-off prevention member. The scaffold structure according to claim 1, wherein the scaffold is sandwiched between a hook projecting on a side surface perpendicular to the scaffold axis of the frame and the drop-off preventing member.

Among the frames constituting the outer edges of the first work floor and the second work floor, a fall prevention member is provided at a side end parallel to the scaffold axis, and the first work floor and the second work floor are provided. The scaffold structure according to claim 1, wherein when the work floor is rotated to a vertical position, the fall prevention member can be temporarily connected to the building.