JP4086710B2

JP4086710B2 - Temporary handrail

Info

Publication number: JP4086710B2
Application number: JP2003130637A
Authority: JP
Inventors: 昭義大久保
Original assignee: Nikkeikin Aluminum Core Technology Co Ltd
Current assignee: Nikkeikin Aluminum Core Technology Co Ltd
Priority date: 2003-05-08
Filing date: 2003-05-08
Publication date: 2008-05-14
Anticipated expiration: 2023-05-08
Also published as: JP2004332412A

Description

【０００１】
【発明の属する技術分野】
この発明は、建物に取り付けられる仮設用手摺に関するものであり、更に詳細には、例えば建物の屋上等の床又は壁に取り付けられる仮設用手摺に関するものである。
【０００２】
【従来の技術】
一般に、建設中の建物の屋上等には、作業者の落下防止のために屋上等の床面の端縁に沿って仮設用手摺が取り付けられている。
【０００３】
従来、この種の仮設用手摺として、屋上の床面に沿って張出縁がある部分には、その端縁に挟持して取り付けるためのＣ字型クランプを具えた手摺支柱を複数取り付け、これらの手摺支柱間にパイプあるいはロープ等の手摺を架設する構造のものが知られている（例えば、特許文献１参照）。
【０００４】
【特許文献１】
特開昭５６−９７０６５号公報（特許請求の範囲、第２頁左上欄第５行〜第１２行）
【０００５】
【発明が解決しようとする課題】
ところで、従来の仮設用手摺は、床面の張出縁に取り付ける構造であるので、床面の張出縁がない場合で、建物の屋上等の端縁に壁が形成されている場合に手摺を取り付けるには、壁を挟持して取り付ける構造の手摺支柱が別途に必要となる。
【０００６】
したがって、床面用及び壁面用の２種類の仮設用手摺を用意する必要があり、その分広い保管スペースが必要となるので、在庫管理が面倒であるという問題があった。また、これら２種類の手摺支柱を製造するには、製造の手間がかかると共に、コストが嵩むという問題があった。
【０００７】
この発明は上記事情に鑑みてなされたもので、床又は壁の両方に取付可能にし、在庫管理を容易にすると共に、コストの低廉化が図れる仮設用手摺を提供することを目的としている。
【０００８】
【課題を解決するための手段】
上記課題を解決するために、請求項１記載の発明は、床又は壁の端部に着脱可能に取り付けられる複数のブラケットと、これらのブラケットに着脱可能に立設される支柱と、これらの支柱間に着脱可能に架設される手摺棒とを具備する仮設用手摺であって、上記ブラケットは、上記支柱を支持する第１の支柱受部と、上記第１の支柱受部に直交状に連結され、上記支柱を支持する第２の支柱受部と、上記第２の支柱受部の端部に形成され、上記床又は壁の一側面に当接する挟持用固定部と、上記第１の支柱受部に対して直交状に摺動可能に装着される可動支持部材と、上記可動支持部材に貫挿螺合され、上記挟持用固定部と共働して上記床又は壁を挟持する挟持用可動固定部材と、を具備することを特徴とする。
【０００９】
このように構成することにより、挟持用固定部と挟持用可動固定部材とが共働して床又は壁を挟持することで、ブラケットを床又は壁に取り付けることができる。また、床にブラケットを取り付ける場合は、第１の支柱受部によって支柱を支持することができ、壁にブラケットを取り付ける場合は、第２の支柱受部によって支柱を支持することができる。
【００１０】
この発明の仮設用手摺において、ブラケットの挟持用固定部及び挟持用可動固定部材の床又は壁に当接する面に、滑止め部材を設ける方が好ましい（請求項４）。
【００１１】
このように構成することにより、挟持用固定部及び挟持用可動固定部材と床又は壁との滑りを防止することができる。
【００１２】
請求項２記載の発明は、請求項１記載の仮設用手摺において、上記可動支持部材に、床又は壁を押圧すると共に、床又は壁に対して接離移動可能な１又は複数の補助用可動固定部材を貫挿螺合することを特徴とする。
【００１３】
このように構成することにより、挟持用可動固定部に加えて補助用可動固定部材によって床又は壁を押圧することができるので、床又は壁に対するブラケットの横揺れを防ぐことができる。
【００１４】
この発明の仮設用手摺において、ブラケットの挟持用固定部、挟持用可動固定部及び補助用可動固定部における床又は壁に当接する面に、滑止め部材を設ける方が好ましい（請求項５）。
【００１５】
このように構成することにより、挟持用固定部、挟持用可動固定部及び補助用可動固定部と床又は壁との滑りを防止することができる。
【００１６】
請求項３記載の発明は、請求項１又は２記載の仮設用手摺において、上記可動支持部材の摺動部に、挟持動作に伴って可動支持部材が傾斜した際に、第１の支柱受部の対向する面に係合する一対のストッパ部材を具備してなることを特徴とする。
【００１７】
このように構成することにより、挟持用固定部と挟持用可動固定部材との挟持動作に伴う可動支持部材の傾斜によって、一対のストッパ部材が第１の支柱受部に係合するので、可動支持部材と第１の支柱受部とを固定することができる。
【００１８】
【発明の実施の形態】
以下、この発明の実施の形態を図面に基づいて詳細に説明する。この実施形態では、この発明に係る仮設用手摺を床に取り付ける場合について説明する。
【００１９】
◎第一実施形態
図１は、この発明に係る仮設用手摺の第一実施形態の取付状態を示す概略斜視図、図２は、上記仮設用手摺の取付状態を示す斜視図、図３は、上記仮設用手摺の側面図（ａ）及び（ａ）のＩ部を示す拡大断面図（ｂ）である。
【００２０】
仮設用手摺Ｈは、図１及び図２に示すように、建物の屋上等の床Ｆの端部に着脱可能に取り付けられる複数のブラケット１と、これらのブラケット１に着脱可能に立設される断面矩形状の中空部材からなる支柱２と、これらの支柱２間に着脱可能に架設される手摺棒３とで構成されている。
【００２１】
上記ブラケット１は、図１ないし図３に示すように、床Ｆの端部に垂直に当接すると共に、上記支柱２を挿入して支持する第１の支柱受部１１と、この第１の支柱受部１１に直交状に連結される第２の支柱受部１２と、第２の支柱受部１２の端部に形成されて、床Ｆの一側面すなわち下面に当接する挟持用固定部１３と、第１の支柱受部１１に対して直交状に摺動可能に装着される可動支持部材４と、この可動支持部材４に貫挿螺合され、挟持用固定部１３と共働して床Ｆを挟持する挟持用可動固定部材５と、可動支持部材４に貫挿螺合され、床Ｆを押圧すると共に、床Ｆに対して接離移動可能な複数（この場合２個）の補助用可動固定部材６とで主に構成されている。
【００２２】
上記第１の支柱受部１１は、図２及び図３に示すように、断面矩形状の中空部材によって形成されており、一端に支柱２を着脱可能に挿入する開口部１１ａを有すると共に、他端には第２の支柱受部１２が直交状に例えば溶接等によって連結されている。また、第１の支柱受部１１の開口部１１ａの側面には、第１の支柱受部１１に挿入された支柱２を固定する支柱固定部１４が形成されている。この支柱固定部１４は、第１の支柱受部１１の側面に穿設された通孔（図示せず）に連通するようにナット１４ａが例えば溶接等によって取り付けられ、このナット１４ａに例えば蝶ボルト１４ｂを螺合して形成されている。
【００２３】
このように構成される支柱固定部１４は、蝶ボルト１４ｂをナット１４ａに螺合して、蝶ボルト１４ｂの先端を第１の支柱受部１１の内部に突出し、第１の支柱受部１１内に挿入された支柱２の一側面を押圧すると共に、支柱２が第１の支柱受部１１の対向する側面に押圧されることで、第１の支柱受部１１に支柱を立設して固定することができる。なお、この場合、蝶ボルト１４ｂには、一辺が第１の支柱受部１１内に位置し、他辺に蝶ボルト１４ｂを貫挿する通孔を有する断面略コ字状の保護板１４ｃが介在されており、支柱２と蝶ボルト１４ｂの先端の間に介在されて、蝶ボルト１４ｂによる押圧によって支柱２の側面に生じる傷を防止している。
【００２４】
また、第１の支柱受部１１の中間部位の一対の側面間にはスプリングピン１５（この場合１本）が介設されており、支柱２を第１の支柱受部１１内に挿入した際に、支柱２の端部を係止して第１の支柱受部１１内への支柱２の侵入を制限するように形成されている。また、第１の支柱受部１１の床Ｆ側の側面には、後述する挟持用固定部１３の蓋板１７の当接面１７ａと同じ高さ位置に係止面１６ａを有する断面矩形状の係止部材１６が例えば溶接等によって取り付けられている（図３参照）。この係止部材１６に床Ｆの下面端部を係止させて、後述する蓋板１７を床Ｆの下面に当接することで、床Ｆへのブラケット１の取り付けを容易にすることができると共に、ブラケット１を安定して床Ｆに取り付けることができる。
【００２５】
上記第２の支柱受部１２は、図２及び図３に示すように、第１の支柱受部１１と同様に断面矩形状の中空部材によって形成されており、一端に支柱２を着脱可能に挿入する開口部１２ａを有すると共に、他端には床Ｆの一側面すなわち下面に当接する挟持用固定部１３が第１の支柱受部１１と平行に例えば溶接等によって連結されている。また、第２の支柱受部１２の開口部１２ａ付近の側面には、第１の支柱受部１１と同様に支柱固定部１４が形成されている。なお、第２の支柱受部１２の第１の支柱受部１１を連結する部位の面には図示しない透孔が穿設されており、第１の支柱受部１１の開口部１１ａから内部に浸入した雨水等が透孔を通って第２の支柱受部１２内に流出し、第２の支柱受部１２の開口部１２ａから排出される。
【００２６】
上記挟持用固定部１３は、図２及び図３に示すように、第１の支柱受部１１及び第２の支柱受部１２と同様に断面矩形状の中空部材によって形成されており、一端に床Ｆの下面に当接する当接面１７ａを有する蓋板１７が例えば溶接等により取り付けられている。また、蓋板１７の当接面１７ａには、床Ｆと蓋板１７との滑りを防ぐと共に、床Ｆを保護するために例えば合成ゴム製の滑止め部材１８が接着されている。なお、挟持用固定部１３の第２の支柱受部１２を連結する部位の面には図示しない透孔が穿設されており、後述するブラケット１を壁Ｗに取り付ける使用形態において第２の支柱受部１２に支柱２を立設した際に、第２の支柱受部１２内に浸入した雨水等が透孔を通って挟持用固定部１３内に流出し、挟持用固定部１３の開口部から排出されるようになっている。
【００２７】
上記可動支持部材４は、図２、図３及び図４に示すように、第１の支柱受部１１を直交状に挟入する一対の板状部材４０と、この板状部材４０の一端側を連結すると共に、第１の支柱受部１１に対して摺動可能に装着する一対の連結部材７１，７２（以下に連結ボルト７１，７２という）及び一対のストッパ部材８１，８２（以下にローレットボルト８１，８２という）と、板状部材４０の他端側を連結すると共に、挟持用可動固定部材５（以下に固定ボルト５という）を貫挿螺合する固定用ナット５０とで構成されている。また、板状部材４０の略中央には、補助用可動固定部材６（以下に補助ボルト６という）を貫挿螺合するための補助用ナット６０が設けられている。
【００２８】
上記板状部材４０は、図２、図３及び図４に示すように、第１の支柱受部１１に摺動可能に装着される摺動部４１と、この摺動部４１から延在して板状部材４０の略中央に形成され、対峙する一対の板状部材４０間の距離を狭める方向に傾斜状に折曲された段部４２と、この段部４２から摺動部４１と平行になるように延在する支持部４３とで形成されている。また、段部４２の側面には、図４に示すように、板状部材４０に垂直な取付片４４ａを有する断面略く字状に折曲された補助部材４４が取り付けられており、取付片４４ａの先端には、補助ボルト６を可動支持部材４に対して直交状に取り付けられるように補助用ナット６０が例えば溶接等によって取り付けられている。
【００２９】
上記摺動部４１は、図２及び図３に示すように、対峙して第１の支柱受部１１を挟入した状態で、摺動部４１の端部側すなわち図３において右側の上部に第１の連結ボルト７１を架設して連結ナット（図示せず）によって連結され、下部に第１のローレットボルト８１を架設して取付ナット（図示せず）によって連結している。また、摺動部４１の段部４２側の上部は第２のローレットボルト８２によって連結されており、下部は第２の連結ボルト７２によって連結されている。したがって、第１のローレットボルト８１と第２のローレットボルト８２は対角線状に対峙した状態となっている。
【００３０】
なお、この場合、第１の支柱受部１１と第１及び第２のローレットボルト８１，８２との間には若干の隙間が設けてあり、可動支持部材４が第１の支柱受部１１に対して摺動する場合には、第１の支柱受部１１の側面と第１及び第２のローレットボルト８１，８２が干渉しないように形成されて、床Ｆへの挟持動作すなわち後述する固定ボルト５の締め付け動作に伴って可動支持部材４の先端部が摺動部４１を支点にして上方に傾斜（回動）した際に、図３（ｂ）に示すように、第１の支柱受部１１の対向する面に第１及び第２のローレットボルト８１，８２が互いに係合するので、第１の支柱受部１１と可動支持部材４とを固定することができる。
【００３１】
上記第１及び第２のローレットボルト８１，８２は、図４に示すように、ボルトの軸部の周面に例えば網目状のローレット８０をローレット加工及び焼き入れ処理によって刻設して形成されている。
【００３２】
上記支持部４３は、図２、図３及び図４に示すように、先端上部に固定用ナット５０を挟持した状態で、例えば溶接等によって取り付けられている。なお、固定用ナット５０は、両板状部材４０の内面に固定用ナット５０の対向する面が当接した状態で挟持され、固定用ナット５０に貫挿螺合される固定ボルト５が可動支持部材４に対して直交状になると共に、挟持用固定部１３と対向する位置に取り付けられる。
【００３３】
なお、この場合、板状部材４０の軽量化及び材料の削減を図るために、支持部４３は摺動部４１に比べて幅が狭く形成されると共に、摺動部４１の略中央に、貫穴４１ａが穿設されている。
【００３４】
固定ボルト５は、図２及び図３に示すように、固定用ナット５０に貫挿螺合されるねじ部５１ａを有するねじ基部５１と、ねじ基部５１の一端に取り付けられる締付用ナット５２と、ねじ基部５１の他端に遊着される挟持部材５３とで構成されている。この場合、締付用ナット５２は、ねじ基部５１の軸径と同程度の大きさに形成され、ねじ基部５１の一端に突出して形成されるボルト部（図示せず）に螺着されると共に、ねじ基部５１と締付用ナット５２の接合部を図示しない溶接等によって取り付けられている。この締付用ナット５２を図示しないレンチ等によって回転することにより、固定ボルト５を床Ｆに対して接離移動することができる。なお、締付用ナット５２をねじ基部５１の軸径と同程度の大きさに形成することで、締付トルクを抑えることができ、床Ｆへの固定ボルト５の過大な押圧力を抑制することができる。
【００３５】
挟持部材５３は、図２及び図３に示すように、略円錐状に形成されており、円錐の頂点部に、ねじ基部５１の端部に突設された係合突起（図示せず）に係合して回転可能に遊着される遊着部５３ａが形成され、円錐の底面部には、床Ｆの上面に当接する挟持部５３ｂが形成されている。また、挟持部材５３の挟持部５３ｂには、図３に示すように、床Ｆと挟持部５３ｂとの滑りを防ぐと共に、床Ｆを保護するために例えば合成ゴム製の滑止め部材５４が接着されている。
【００３６】
このように挟持部材５３をねじ基部５１に遊着することで、挟持部５３ｂが床Ｆの上面に当接した状態で締結用ナット５２を回転させて、固定ボルト５を床Ｆに対して接離移動することができる。なお、ねじ基部５１の一端部すなわち締付用ナット５２側の端部には、図３に示すように、ねじ基部５１を貫通する貫通孔５５が穿設されており、図２に２点鎖線で示すように棒状部材５６を貫通孔５５に貫挿して回転させることにより、図示しないレンチ等を使用しなくても固定ボルト５を回転して接離移動することができる。
【００３７】
補助ボルト６は、図２及び図３に示すように、補助用ナット６０に貫挿螺合される補助ねじ部６１ａを有する補助ねじ基部６１と、補助ねじ基部６１の一端に取り付けられる補助締付用ナット６２と、補助ねじ基部６１の他端に遊着される補助固定部材６３とで構成されている。この場合、補助締付用ナット６２は、上記締付用ナット５２と同様に、補助ねじ基部６１の軸径と同程度の大きさのものが溶接等によって補助ねじ基部６１の一端に取り付けられている。
【００３８】
補助固定部材６３は、図２及び図３に示すように、固定ボルト５の挟持部材５３と同様に、略円錐状に形成されており、円錐の頂点部に、補助ねじ基部６１の端部に突設された係合突起（図示せず）に係合して回転可能に遊着される遊着部６３ａが形成され、円錐の底面部には、床Ｆの上面に当接する押圧部６３ｂが形成されている。また、補助固定部材６３の押圧部６３ｂには、図３に示すように、床Ｆと押圧部６３ｂとの滑りを防ぐと共に、床Ｆを保護するために例えば合成ゴム製の滑止め部材６４が接着されている。
【００３９】
このように構成された補助ボルト６は、可動支持部材４の両側辺に補助部材４４を介して側方に突出した位置に形成されているので、固定ボルト５と挟持用固定部１３とで床Ｆを挟持するのに加えて、床Ｆの上面を押圧することで、ブラケット１の横揺れを防止することができ、ブラケット１を強固に固定することができる。
【００４０】
上記支柱２は、図１ないし図３及び図５に示すように、第１，第２の支柱受部１１，１２内に着脱可能に挿入される断面略矩形状の例えばアルミニウム製の中空部材によって形成されている。また、支柱２の全側面の上端部及び略中央部には、鍵穴状孔２０が穿設されており、この鍵穴状孔２０に手摺棒３の後述する取付ボルト９４を係合して手摺棒３が着脱可能に架設されている。なお、支柱２の上端開口部には、開口部を閉塞するキャップ２３が取り付けられている（図５参照）。
【００４１】
上記鍵穴状孔２０は、図５に示すように、円弧状の挿脱孔２１と、この挿脱孔２１の下端を切り欠いて下方に開口する切欠孔２２とで形成されている。
【００４２】
このように構成された支柱２は、ブラケット１の第１の支柱受部１１内又は第２の支柱受部１２内に挿入され、支柱受部１１，１２の開口部１１ａ，１２ａに形成された支柱固定部１４によって第１又は第２の支柱受部１１，１２に固定される。
【００４３】
上記手摺棒３は、図５に示すように、円筒状に形成されて一端の外周にねじ部３１ａを有する外管３１と、外管３１の内部に収納可能であると共に、外管３１に対して伸縮自在な円筒状の内管３２と、内管３２を貫挿すると共に、外管３１のねじ部３１ａに螺着可能な略円筒状の伸縮固定部材３３と、外管３１の他端に装着されて支柱２の鍵穴状孔２０に外管３１を取り付ける外管用連結部材９１と、内管３２の先端に装着されて支柱２の鍵穴状孔２０に内管３２を取り付ける内管用連結部材９２とで構成されている。なお、外管３１の外管用連結部材９１を取り付ける周縁部及び内管３２の内管用連結部材９２を取り付ける周縁部には、それぞれ複数の透孔３１ｂ，３２ｂが設けられている。なお、この場合、外管３１、内管３２及び伸縮固定部材３３はアルミニウム製部材によって形成されている。
【００４４】
上記伸縮固定部材３３は、図５に示すように、円筒状に形成され内面にねじ溝３３ａを有する固定基部３４と、固定基部３４の一端の開口部内面に突出して設けられるフランジ部３５とで形成されている。また、固定基部３４の内面とフランジ部３５とで形成される段部にはＯリング３６が装着されている。
【００４５】
このように構成される伸縮固定部材３３は、伸縮固定部材３３を外管３１のねじ部３１ａに締め付けて、外管３１の端部と伸縮固定部材３３のフランジ部３５との間でＯリング３６を圧縮変形すると共に、Ｏリング３６を内管３２に圧接することで内管３２を適当な位置で固定することができる。したがって、床Ｆに取り付けられたブラケット１の設置間隔に応じて、手摺棒３を伸縮させて長さ調節することができる。
【００４６】
なお、この場合、固定基部３４の外周面には、例えばローレット加工が施されており、伸縮固定部材３３を外管３１のねじ部３１ａに対して締め付け及び緩める際に、作業者の手の滑りをなくすことができる。
【００４７】
外管用連結部材９１は、図５に示すように、外管３１の開口部を閉塞する蓋体９３と、蓋体９３に取り付けられて支柱２の鍵穴状孔２０に連結可能な取付ボルト９４と、この取付ボルト９４に螺合される蝶ナット９５とで構成されている。
【００４８】
蓋体９３は、外管３１の開口部を閉塞する円盤状の蓋部９３ａと、蓋部９３ａの一側面に円筒状に形成されて外管３１内に嵌挿される嵌合部９３ｂとで形成されている。また、蓋部９３ａの略中央部には、取付ボルト９４のボルト部先端を嵌挿する連結孔９３ｃが設けられている。なお、嵌合部９３ｂには外管３１の周縁部に設けられた複数の透孔３１ｂに連通する取付孔９３ｄが設けられており、外管３１の透孔３１ｂと嵌合部９３ｂの取付孔９３ｄとを例えばリベット９６等の固定手段によって連結することで、外管３１の開口部に蓋体９３を取り付けることができる。
【００４９】
取付ボルト９４は、図５に示すように、先端部が蓋体９３の蓋部９３ａに取り付けられると共に、蝶ナット９５が螺合されるボルト部９４ａと、ボルト部９４ａの基端部に形成されて支柱２の鍵穴状孔２０に係脱可能なボルトヘッド９４ｂとで形成されている。また、ボルト部９４ａの基端部には、対向する２つの平面を有する首部９４ｃが形成されており、図５（ｂ）に示すように、鍵穴状孔２０の切欠孔２２に貫挿可能に形成されている。このようにボルト部９４ａに設けられた首部９４ｃを切欠孔２２に貫挿することで、支柱２に対して手摺棒３の回動を防止することができる。なお、取付ボルト９４と蓋体９３とは、ボルト部９４ａ先端を蓋部９３ａの連結孔９３ｃに嵌挿した状態で例えば溶接等によって固定してある。
【００５０】
なお、外管用連結部材９１と内管用連結部材９２とは、蓋体９３の大きさが違うだけで、その他の部分は同一であるので、同一部分には同一の符号を付して説明は省略する。
【００５１】
このように構成された手摺棒３を支柱２間に取り付けるには、まず、支柱２をブラケット１に立設し、外管３１と内管３２との伸縮動作を固定しない状態で支柱２の対向する鍵穴状孔２０の挿脱孔２１に取付ボルト９４のボルトヘッド９４ｂ挿入する。次に、取付ボルト９４の首部９４ｃの平面を切欠孔２２に対して水平にして、首部９４ｃを切欠孔２２内に落とし込み、ボルトヘッド９４ｂを支柱２の側面に係合させる（図５（ｂ）参照）。この状態で、ボルト部９４ａに螺合された蝶ナット９５をボルトヘッド９４ｂ側へ締め付けて、ボルトヘッド９４ｂと蝶ナット９５とで支柱２の側面を挟持して、取付ボルト９４を鍵穴状孔２０に連結することができる。その後、手摺棒３の伸縮固定部材３３を外管３１のねじ部３１ａに締め付けて、外管３１と内管３２の伸縮動作を固定する。
【００５２】
なお、手摺棒３を支柱２から取り外すには、上記説明と逆の手順で、手摺棒３の伸縮固定部材３３の締着を緩めて外管３１と内管３２とを伸縮自在にし、蝶ナット９５の締着を緩めて取付ボルト９４の首部９４ｃを切欠孔２２の上方へ移動させ、ボルトヘッド９４ｂを挿脱孔２１から抜き出せばよい。
【００５３】
次に、ブラケット１を床Ｆに取り付ける手順を図６を参照して説明する。
【００５４】
まず、ブラケット１の第１の支柱受部１１に摺動可能に装着された可動支持部材４を、挟持用固定部１３と離れた位置へ移動させた状態で、第１の支柱受部１１を床Ｆの周縁に位置すると共に、挟持用固定部１３を床Ｆの下面へ位置するようにブラケット１を配置する（図６（ａ）参照）。
【００５５】
次に、挟持用固定部１３の蓋板１７を床Ｆの下面に当接すると共に、第１の支柱受部１１に形成された係止部材１６の係止面１６ａを床Ｆの下面に当接した状態で、可動支持部材４を挟持用固定部１３側へ摺動させて固定ボルト５の挟持部５３ｂを床Ｆの上面に当接させる（図６（ｂ）参照）。この状態で、固定ボルト５の締付用ナット５２を図示しないレンチ等によって回転させて、挟持部材５３の挟持部５３ｂが床Ｆの上面を押圧するのに伴って可動支持部材４の先端部が摺動部４１を支点にして上方に傾斜（回動）する。これにより、第１の支柱受部１１の対向する面に摺動部４１の両ローレットボルト８（８１，８２）が互いに係合するので、第１の支柱受部１１と可動支持部材４との摺動を固定すると共に、固定ボルト５と挟持用固定部１３とで床Ｆを挟持してブラケット１を床Ｆに取り付けることができる（図６（ｃ）参照）。更に、図６（ｄ）に示すように、補助ボルト６を図示しないレンチ等によって回転させて、補助固定部材６３の押圧部６３ｂを床Ｆの上面に押圧する。このように補助ボルト６によって、更に床Ｆの上面を押圧することで、ブラケット１の横揺れを防止することができる。そして、このように床Ｆに取り付けられたブラケット１の第１の支柱受部１１内に支柱２を挿入して、支柱２を支柱固定部１４によって固定することで、支柱２をブラケット１に立設することができる（図６（ｅ）参照）。
【００５６】
このように、床Ｆに取り付けられたブラケット１に立設された支柱２間に、上述したように手摺棒３を架設することで、建物の屋上等の床Ｆに仮設用手摺Ｈを設置することができる。
【００５７】
◎第二実施形態
図７は、この発明に係る仮設用手摺の第二実施形態の取付状態を示す概略斜視図、図８は、上記仮設用手摺の取付状態を示す拡大斜視図、図９は、上記仮設用手摺の側面図（ａ）及び（ａ）のIII部を示す拡大断面図（ｂ）である。
【００５８】
第二実施形態は、仮設用手摺Ｈのブラケット１を建物の屋上等の壁Ｗに取り付けて、第２の支柱受部１２に支柱２を立設するようにした場合である。
【００５９】
すなわち、第二実施形態の仮設用手摺Ｈは、図７、図８及び図９に示すように、建物の屋上等の壁Ｗの端部に着脱可能に取り付けられる複数のブラケット１と、これらのブラケット１に着脱可能に立設される断面矩形状の中空部材からなる支柱２と、これらの支柱２間に着脱可能に架設される手摺棒３とで構成されている。
【００６０】
上記ブラケット１は、第一実施形態と同様に構成されている。すなわち、図７ないし図９に示すように、壁Ｗの上面に水平に位置する第１の支柱受部１１と、この第１の支柱受部１１の一端に直交状に連結されて、上記支柱２を挿入して支持する第２の支柱受部１２と、第２の支柱受部１２の端部に形成されて、壁Ｗの外側面に当接する挟持用固定部１３と、第１の支柱受部１１に対して直交状に摺動可能に装着される可動支持部材４と、この可動支持部材４に貫挿螺合され、挟持用固定部１３と共働して壁Ｗを挟持する挟持用可動固定部材５と、可動支持部材に貫挿螺合され、壁Ｗを押圧すると共に、壁Ｗに対して接離移動可能な複数（この場合２個）の補助用可動固定部材６とで構成されている。
【００６１】
なお、ブラケット１、支柱２及び手摺棒３の構造は上記第一実施形態と同様であるので、同一部分には同一符号を付して説明は省略する。
【００６２】
次に、ブラケット１を壁Ｗに取り付ける手順を図１１を参照して説明する。
【００６３】
まず、ブラケット１の第１の支柱受部１１に摺動可能に装着された可動支持部材４を、挟持用固定部１３と離れた位置へ移動させた状態で、第１の支柱受部１１を壁Ｗの上面に水平に位置すると共に、挟持用固定部１３を壁Ｗの外側面へ位置するようにブラケット１を配置する（図１１（ａ）参照）。
【００６４】
次に、挟持用固定部１３の蓋板１７を壁Ｗの外側面に当接させ、可動支持部材４を挟持用固定部１３側へ摺動させて固定ボルト５の挟持部材５３の挟持部５３ｂを壁Ｗの内側面に当接させる（図１１（ｂ）参照）。なお、この場合、第１の支柱受部１１に形成された係止部材１６は壁Ｗの上面に当接する。この状態で、固定ボルト５の締付用ナット５２を図示しないレンチ等によって回転させて、挟持部材５３の挟持部５３ｂが壁Ｗの内側面を押圧するのに伴って可動支持部材４の先端部が摺動部４１を支点にして回動（図１１において左方向に回動）する。これにより、第１の支柱受部１１の対向する面に摺動部４１の両ローレットボルト８が互いに係合するので、第１の支柱受部１１と可動支持部材４との摺動を固定すると共に、固定ボルト５と挟持用固定部１３とが共働して壁Ｗを挟持し、ブラケット１を壁Ｗに取り付けることができる（図１１（ｃ）参照）。
【００６５】
更に、図１１（ｄ）に示すように、補助ボルト６を図示しないレンチ等によって回転させて、補助固定部材６３の押圧部６３ｂを壁Ｗの内側面（笠木部）に押圧する。このように補助ボルト６よって更に壁Ｗの内側面（笠木部）を押圧することで、ブラケット１の横揺れを防止することができる。
【００６６】
次に、このように壁Ｗに取り付けられたブラケット１の第２の支柱受部１２内に支柱２を挿入して、支柱２を支柱固定部１４によって固定することで、支柱２をブラケット１に立設することができる（図１１（ｅ）参照）。
【００６７】
このように壁Ｗに取り付けられたブラケット１に立設された支柱２間に手摺棒３を架設することで、建物の屋上等の壁Ｗに仮設用手摺Ｈを設置することができる。
【００６８】
【発明の効果】
以上に説明したように、この発明によれば、上記のように構成されているので、以下のような優れた効果が得られる。
【００６９】
（１）請求項１記載の発明によれば、ブラケットに、支柱を支持する第１の支柱受部及び第２の支柱受部を設け、ブラケットを床に取り付ける場合は、第１の支柱受部によって支柱を支持し、ブラケットを壁に取り付ける場合は、第２の支柱受部によって支柱を支持するので、１種類のブラケットで床又は壁の両方に仮設用手摺を形成することができる。また、ブラケットを２種類用意する必要がないので、在庫管理が容易となり、かつ、コストの低廉化が図れる。
【００７０】
（２）請求項２記載の発明は、補助用可動固定部材によって床又は壁を押圧することができるので、上記（１）に加えて、床又は壁に対するブラケットの横揺れを防ぐことができ、ブラケット及び手摺の取り付けを確実にすることができる。
【００７１】
（３）請求項３記載の発明は、挟持用固定部と挟持用可動固定部材との挟持動作に伴う可動支持部材の傾斜によって、一対のストッパ部材が第１の支柱受部に係合するので、上記（１）又は（２）に加えて、更にブラケットの取り付けを確実にすることができ、手摺を安定した状態に取り付けることができる。
【００７２】
（４）請求項４記載の発明は、ブラケットの挟持用固定部及び挟持用可動固定部材の床又は壁に当接する面に滑止め部材を設けることによって、挟持用固定部及び挟持用可動固定部材と床又は壁との滑りを防止することができるので、上記（１）に加えて、更にブラケット及び手摺の取り付けを確実にすることができる。
【００７３】
（５）請求項５の発明は、ブラケットの挟持用固定部、挟持用可動固定部材及び補助用可動固定部の床又は壁に当接する面に滑止め部材を設けることによって、挟持用固定部、挟持用可動固定部材及び補助用可動固定部と床又は壁との滑りを防止することができるので、上記（２）に加えて、更にブラケット及び手摺の取り付けを確実にすることができる。
【図面の簡単な説明】
【図１】この発明に係る仮設用手摺の第一実施形態の取付状態を示す概略斜視図である。
【図２】上記仮設用手摺の床への取付状態を示す斜視図である。
【図３】上記仮設用手摺の側面図（ａ）及び（ａ）のＩ部を示す拡大断面図（ｂ）である。
【図４】上記仮設用手摺の取付状態を示す平面図である。
【図５】上記仮設用手摺の支柱及び手摺棒の取り付け構造を示す側面図（ａ）及び（ａ）のII−II線に沿う要部断面図（ｂ）である。
【図６】この発明に係る仮設用手摺の第一実施形態の取付手順を示す概略図（ａ）〜（ｅ）である。
【図７】この発明に係る仮設用手摺の第二実施形態の取付状態を示す概略斜視図である。
【図８】上記仮設用手摺の壁への取付状態を示す斜視図である。
【図９】上記仮設用手摺の側面図（ａ）及び（ａ）のIII部を示す拡大断面図（ｂ）である。
【図１０】図９のＡ視図である。
【図１１】この発明に係る仮設用手摺の第二実施形態の取付手順を示す概略図（ａ）〜（ｅ）である。
【符号の説明】
Ｆ床
Ｈ仮設用手摺
Ｗ壁
１ブラケット
２支柱
３手摺棒
４可動支持部材
５挟持用可動固定部材（固定ボルト）
６補助用可動固定部材（補助ボルト）
１１第１の支柱受部
１２第２の支柱受部
１３挟持用固定部
１８，５４，６４滑止め部材
８１ストッパ部材（ローレットボルト）[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a temporary handrail attached to a building, and more particularly, to a temporary handrail attached to a floor or wall such as a rooftop of a building.
[0002]
[Prior art]
In general, a temporary handrail is attached to the rooftop of a building under construction along the edge of a floor surface such as the rooftop to prevent the operator from falling.
[0003]
Conventionally, as a temporary handrail of this type, a plurality of handrail struts having C-shaped clamps to be clamped and attached to the edge are attached to a portion having a protruding edge along the floor surface of the roof. There is known a structure in which a handrail such as a pipe or a rope is erected between the handrail struts (see, for example, Patent Document 1).
[0004]
[Patent Document 1]
JP-A-56-97065 (claims, page 2, upper left column, lines 5 to 12)
[0005]
[Problems to be solved by the invention]
By the way, since the conventional handrail for temporary installation is a structure attached to the overhang edge of a floor surface, when there is no overhang edge of a floor surface and a wall is formed in the edge of a building rooftop etc. In order to attach the handrail, a handrail post having a structure in which the wall is sandwiched and attached is separately required.
[0006]
Therefore, it is necessary to prepare two types of temporary handrails for the floor surface and the wall surface, and a correspondingly large storage space is required, which causes a problem that inventory management is troublesome. In addition, manufacturing these two types of handrail struts has a problem in that it takes time and effort and increases costs.
[0007]
The present invention has been made in view of the above circumstances, and an object thereof is to provide a temporary handrail that can be attached to both a floor or a wall, facilitate inventory management, and reduce the cost.
[0008]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the invention according to claim 1 includes a plurality of brackets that are detachably attached to an end of a floor or a wall, columns that are detachably installed on these brackets, and these columns. A temporary handrail comprising a handrail rod detachably mounted between the bracket, the bracket being connected to the first strut receiving portion and the first strut receiving portion in an orthogonal manner. A second supporting column supporting portion that supports the supporting column; a clamping fixing portion that is formed at an end of the second supporting column receiving portion and abuts against one side of the floor or wall; and the first supporting column A movable support member that is slidably mounted orthogonally to the receiving portion, and for sandwiching that is screwed into the movable support member and that cooperates with the sandwiching fixing portion to sandwich the floor or wall. And a movable fixing member.
[0009]
By comprising in this way, a bracket can be attached to a floor or a wall because the fixing part for clamping and the movable fixing member for clamping work together and clamp a floor or a wall. Moreover, when attaching a bracket to a floor, a support | pillar can be supported by a 1st support | pillar receiving part, and when attaching a bracket to a wall, a support | pillar can be supported by a 2nd support | pillar receiving part.
[0010]
In the temporary handrail according to the present invention, it is preferable to provide a non-slip member on the surface of the bracket that is in contact with the floor or wall of the clamping fixing portion and the clamping movable fixing member.
[0011]
With this configuration, it is possible to prevent slipping between the sandwiching fixing portion and the sandwiching movable fixing member and the floor or the wall.
[0012]
The invention according to claim 2 is the temporary handrail according to claim 1, wherein the movable support member presses the floor or the wall and is movable toward or away from the floor or the wall. The fixing member is inserted and screwed.
[0013]
By comprising in this way, since a floor or a wall can be pressed with the auxiliary | assistant movable fixing member in addition to the clamping movable fixing | fixed part, the rolling of the bracket with respect to a floor or a wall can be prevented.
[0014]
In the temporary handrail according to the present invention, it is preferable to provide a non-slip member on a surface of the bracket that is in contact with the floor or wall of the clamping fixed portion, the clamping movable fixing portion, and the auxiliary movable fixing portion.
[0015]
By configuring in this way, it is possible to prevent slipping between the clamping fixed portion, the clamping movable fixing portion, and the auxiliary movable fixing portion and the floor or the wall.
[0016]
According to a third aspect of the present invention, in the temporary handrail according to the first or second aspect, when the movable support member is inclined to the sliding portion of the movable support member in accordance with the clamping operation, the first support column receiving portion is provided. It is characterized by comprising a pair of stopper members engaged with the opposing surfaces.
[0017]
With this configuration, the pair of stopper members are engaged with the first column support portion by the inclination of the movable support member accompanying the clamping operation between the clamping fixed portion and the clamping movable fixing member. A member and a 1st support | pillar receiving part can be fixed.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. This embodiment demonstrates the case where the temporary handrail which concerns on this invention is attached to a floor.
[0019]
◎ First embodiment
FIG. 1 is a schematic perspective view showing an attachment state of the first embodiment of the temporary handrail according to the present invention, FIG. 2 is a perspective view showing the attachment state of the temporary handrail, and FIG. 3 is an illustration of the temporary handrail. It is an expanded sectional view (b) which shows the I section of a side view (a) and (a).
[0020]
As shown in FIGS. 1 and 2, the temporary handrail H is detachably mounted on a plurality of brackets 1 that are detachably attached to an end portion of a floor F such as a rooftop of a building. It is comprised by the support | pillar 2 which consists of a hollow member of a cross-sectional rectangular shape, and the handrail rod 3 detachably installed between these support | pillars 2.
[0021]
As shown in FIGS. 1 to 3, the bracket 1 abuts the end of the floor F perpendicularly, and inserts and supports the support column 2 to support the first support column 11 and the first support column. A second support column 12 that is orthogonally connected to the support unit 11, and a clamping fixing unit 13 that is formed at the end of the second support column 12 and abuts against one side surface, that is, the lower surface of the floor F; The movable support member 4 slidably mounted orthogonally to the first support column receiving portion 11, and is screwed into the movable support member 4 so as to cooperate with the clamping fixing portion 13. A plurality of (in this case, two) auxiliary members that can be inserted and screwed into the holding movable fixing member 5 for holding F and the movable support member 4 to press the floor F and move toward and away from the floor F. The movable fixing member 6 is mainly configured.
[0022]
As shown in FIG. 2 and FIG. 3, the first strut receiving portion 11 is formed of a hollow member having a rectangular cross section, and has an opening 11 a into which the strut 2 is detachably inserted at one end, and the other. The second support column 12 is connected to the end in an orthogonal shape, for example, by welding. Further, on the side surface of the opening 11 a of the first support column receiver 11, a support column fixing unit 14 that fixes the support column 2 inserted into the first column support unit 11 is formed. A nut 14a is attached to the column fixing part 14 by, for example, welding or the like so as to communicate with a through hole (not shown) drilled in the side surface of the first column receiving part 11, and the nut 14a is attached with, for example, a butterfly bolt. 14b is formed by screwing.
[0023]
The strut fixing portion 14 configured in this manner is configured such that the butterfly bolt 14b is screwed into the nut 14a, the tip of the butterfly bolt 14b protrudes into the first strut receiving portion 11, and the first strut receiving portion 11 The column 2 is pressed against one side surface of the column 2 and the column 2 is pressed against the opposite side surface of the first column support unit 11, so that the column is erected and fixed to the first column support unit 11. can do. In this case, the butterfly bolt 14b is provided with a protective plate 14c having a substantially U-shaped cross section having one side positioned in the first support column receiving portion 11 and a through hole through which the butterfly bolt 14b is inserted. It is interposed between the support column 2 and the tip of the butterfly bolt 14b, and prevents damage to the side surface of the support column 2 caused by pressing by the butterfly bolt 14b.
[0024]
Further, a spring pin 15 (one in this case) is interposed between a pair of side surfaces of the intermediate portion of the first support column receiving portion 11, and when the support column 2 is inserted into the first support column receiving portion 11. In addition, the end portion of the support column 2 is locked to limit the entry of the support column 2 into the first support column receiving portion 11. Further, the side surface on the floor F side of the first support column 11 has a rectangular cross section having a locking surface 16a at the same height as the contact surface 17a of the cover plate 17 of the clamping and fixing unit 13 described later. The locking member 16 is attached by welding or the like (see FIG. 3). While the lower end of the floor F is locked to the locking member 16 and a lid plate 17 described later is brought into contact with the lower surface of the floor F, the bracket 1 can be easily attached to the floor F. The bracket 1 can be stably attached to the floor F.
[0025]
As shown in FIGS. 2 and 3, the second support column receiving portion 12 is formed of a hollow member having a rectangular cross section like the first support column receiving portion 11, and the support column 2 can be attached to and detached from one end. While having the opening part 12a to insert, the fixing part 13 for clamping which contact | abuts the one side of the floor F, ie, a lower surface, is connected with the 1st support | pillar receiving part 11 by welding etc. in the other end. Further, on the side surface in the vicinity of the opening 12 a of the second column support unit 12, a column fixing unit 14 is formed in the same manner as the first column support unit 11. In addition, a through-hole (not shown) is formed in the surface of the portion connecting the first support column 11 of the second support column receiving unit 12, and the inside of the first support column 11 through the opening 11 a of the first support column receiving unit 11. The rainwater or the like that has entered enters the second support column receiving part 12 through the through hole, and is discharged from the opening 12a of the second support column receiving part 12.
[0026]
As shown in FIGS. 2 and 3, the holding fixing portion 13 is formed by a hollow member having a rectangular cross section, similar to the first column support portion 11 and the second column support portion 12. A cover plate 17 having a contact surface 17a that contacts the lower surface of the floor F is attached by, for example, welding. Further, a non-slip member 18 made of, for example, synthetic rubber is bonded to the contact surface 17a of the cover plate 17 in order to prevent the floor F and the cover plate 17 from slipping and to protect the floor F. In addition, a through hole (not shown) is formed in the surface of the portion connecting the second support column receiving portion 12 of the fixing portion 13 for clamping, and the second support column in the usage mode in which the bracket 1 to be described later is attached to the wall W. When the support column 2 is erected on the receiving portion 12, rainwater or the like that has entered the second support column receiving portion 12 flows into the holding fixture portion 13 through the through hole, and the opening portion of the holding fixture portion 13. It comes to be discharged from.
[0027]
As shown in FIGS. 2, 3, and 4, the movable support member 4 includes a pair of plate-like members 40 that sandwich the first support column receiving portion 11 in an orthogonal shape, and one end side of the plate-like member 40. And a pair of connecting members 71 and 72 (hereinafter referred to as connecting bolts 71 and 72) and a pair of stopper members 81 and 82 (hereinafter referred to as knurls) that are slidably mounted on the first support column 11. Bolts 81 and 82) and a fixing nut 50 for connecting the other end of the plate-like member 40 and for screwing and screwing the holding movable fixing member 5 (hereinafter referred to as the fixing bolt 5). Yes. In addition, an auxiliary nut 60 for inserting and screwing the auxiliary movable fixing member 6 (hereinafter referred to as auxiliary bolt 6) is provided at substantially the center of the plate-like member 40.
[0028]
As shown in FIGS. 2, 3, and 4, the plate-like member 40 extends from the sliding portion 41, and a sliding portion 41 that is slidably mounted on the first support column receiving portion 11. And a step portion 42 that is formed substantially at the center of the plate-like member 40 and is bent in an inclined manner so as to reduce the distance between the pair of plate-like members 40 facing each other, and is parallel to the sliding portion 41 from the step portion 42. It is formed with the support part 43 extended so that it may become. Further, as shown in FIG. 4, an auxiliary member 44 bent in a substantially square cross section having an attachment piece 44 a perpendicular to the plate-like member 40 is attached to the side surface of the step portion 42. An auxiliary nut 60 is attached to the tip of 44a by welding or the like so that the auxiliary bolt 6 can be attached orthogonally to the movable support member 4.
[0029]
As shown in FIGS. 2 and 3, the sliding portion 41 faces the end portion side of the sliding portion 41, that is, on the upper right side in FIG. A first connecting bolt 71 is installed and connected by a connecting nut (not shown), and a first knurled bolt 81 is installed at the lower part and connected by a mounting nut (not shown). The upper part of the sliding part 41 on the side of the step part 42 is connected by a second knurled bolt 82, and the lower part is connected by a second connecting bolt 72. Therefore, the first knurled bolt 81 and the second knurled bolt 82 are diagonally opposed.
[0030]
In this case, a slight gap is provided between the first support column receiving portion 11 and the first and second knurled bolts 81 and 82, and the movable support member 4 is connected to the first support column receiving portion 11. When sliding on the floor F, the side surface of the first support column 11 and the first and second knurled bolts 81 and 82 are formed so as not to interfere with each other. When the distal end portion of the movable support member 4 is tilted upward (rotated) with the sliding portion 41 as a fulcrum in accordance with the tightening operation 5, as shown in FIG. Since the first and second knurled bolts 81 and 82 are engaged with each other on the opposing surfaces of the first support 11, the first support column 11 and the movable support member 4 can be fixed.
[0031]
As shown in FIG. 4, the first and second knurled bolts 81 and 82 are formed by engraving, for example, a mesh-shaped knurled 80 on the peripheral surface of the bolt shaft portion by knurling and quenching. Yes.
[0032]
As shown in FIGS. 2, 3, and 4, the support portion 43 is attached by, for example, welding or the like in a state where the fixing nut 50 is sandwiched at the upper end of the tip. The fixing nut 50 is sandwiched in a state where the opposing surfaces of the fixing nut 50 are in contact with the inner surfaces of both plate-like members 40, and the fixing bolt 5 inserted and screwed into the fixing nut 50 is movablely supported. While being orthogonal to the member 4, it is attached at a position facing the clamping fixing portion 13.
[0033]
In this case, in order to reduce the weight of the plate-like member 40 and reduce the material, the support portion 43 is formed to be narrower than the sliding portion 41 and penetrates substantially at the center of the sliding portion 41. A hole 41a is formed.
[0034]
As shown in FIGS. 2 and 3, the fixing bolt 5 includes a screw base 51 having a screw portion 51 a that is inserted and screwed into the fixing nut 50, and a tightening nut 52 attached to one end of the screw base 51. The clamping member 53 is loosely attached to the other end of the screw base 51. In this case, the tightening nut 52 is formed to have the same size as the shaft diameter of the screw base 51 and is screwed to a bolt portion (not shown) formed to protrude from one end of the screw base 51. The joint between the screw base 51 and the tightening nut 52 is attached by welding or the like (not shown). The fixing bolt 5 can be moved toward and away from the floor F by rotating the tightening nut 52 with a wrench (not shown) or the like. In addition, by forming the tightening nut 52 to have the same size as the shaft diameter of the screw base 51, the tightening torque can be suppressed and the excessive pressing force of the fixing bolt 5 on the floor F can be suppressed. be able to.
[0035]
As shown in FIGS. 2 and 3, the clamping member 53 is formed in a substantially conical shape, and an engaging protrusion (not shown) that protrudes from the end of the screw base 51 at the apex of the cone. An attachment portion 53a that is engaged and rotatably attached is formed, and a sandwiching portion 53b that contacts the upper surface of the floor F is formed on the bottom surface of the cone. Further, as shown in FIG. 3, for example, a synthetic rubber non-slip member 54 is bonded to the sandwiching portion 53 b of the sandwiching member 53 to prevent the floor F and the sandwiching portion 53 b from slipping and to protect the floor F. Has been.
[0036]
By loosely attaching the clamping member 53 to the screw base 51 in this way, the fastening nut 52 is rotated with the clamping portion 53b in contact with the upper surface of the floor F, and the fixing bolt 5 is brought into contact with the floor F. Can move away. As shown in FIG. 3, a through hole 55 penetrating the screw base 51 is formed in one end of the screw base 51, that is, the end on the tightening nut 52 side. As shown, the rod-shaped member 56 is inserted into the through-hole 55 and rotated, so that the fixing bolt 5 can be rotated and moved away from and moved without using a wrench or the like (not shown).
[0037]
As shown in FIGS. 2 and 3, the auxiliary bolt 6 includes an auxiliary screw base 61 having an auxiliary screw portion 61 a that is inserted and screwed into the auxiliary nut 60, and auxiliary tightening that is attached to one end of the auxiliary screw base 61. It comprises a nut 62 and an auxiliary fixing member 63 that is loosely attached to the other end of the auxiliary screw base 61. In this case, the auxiliary tightening nut 62 is attached to one end of the auxiliary screw base 61 by welding or the like having the same size as the shaft diameter of the auxiliary screw base 61 in the same manner as the tightening nut 52 described above. Yes.
[0038]
As shown in FIGS. 2 and 3, the auxiliary fixing member 63 is formed in a substantially conical shape like the clamping member 53 of the fixing bolt 5, and is formed at the apex of the cone and at the end of the auxiliary screw base 61. An attachment portion 63a that engages with a protruding engagement protrusion (not shown) and is rotatably attached is formed, and a pressing portion 63b that contacts the upper surface of the floor F is formed on the bottom surface of the cone. Is formed. Further, as shown in FIG. 3, the pressing portion 63b of the auxiliary fixing member 63 has a non-slip member 64 made of, for example, synthetic rubber to prevent the floor F and the pressing portion 63b from slipping and to protect the floor F. It is glued.
[0039]
Since the auxiliary bolt 6 configured in this manner is formed on the both sides of the movable support member 4 at positions protruding laterally via the auxiliary member 44, the fixing bolt 5 and the fixing portion 13 for clamping are used as a floor. In addition to sandwiching F, by pressing the upper surface of the floor F, the bracket 1 can be prevented from rolling and the bracket 1 can be firmly fixed.
[0040]
As shown in FIGS. 1 to 3 and 5, the support column 2 is formed by a hollow member made of, for example, aluminum having a substantially rectangular cross section and detachably inserted into the first and second support column receiving portions 11 and 12. Is formed. Further, a keyhole-like hole 20 is formed in the upper end portion and the substantially central portion of all the side surfaces of the column 2, and a handrail bar is engaged by engaging a mounting bolt 94 (to be described later) of the handrail rod 3 with this keyhole-like hole 20. 3 is detachably mounted. In addition, the cap 23 which closes an opening part is attached to the upper end opening part of the support | pillar 2 (refer FIG. 5).
[0041]
As shown in FIG. 5, the keyhole-shaped hole 20 is formed by an arc-shaped insertion / removal hole 21 and a cutout hole 22 that opens downward by cutting out the lower end of the insertion / removal hole 21.
[0042]
The support column 2 configured as described above is inserted into the first support column receiving part 11 or the second support column receiving part 12 of the bracket 1 and formed in the openings 11a and 12a of the support column receiving parts 11 and 12. It is fixed to the first or second column receiving parts 11, 12 by the column fixing part 14.
[0043]
As shown in FIG. 5, the handrail bar 3 is formed in a cylindrical shape and has an outer tube 31 having a threaded portion 31 a on one outer periphery, and can be stored in the outer tube 31. A cylindrical inner tube 32 that can be expanded and contracted, a substantially cylindrical expansion / contraction fixing member 33 that penetrates the inner tube 32 and can be screwed into the threaded portion 31 a of the outer tube 31, and the other end of the outer tube 31. An outer tube connecting member 91 that is attached to attach the outer tube 31 to the keyhole-shaped hole 20 of the support column 2, and an inner tube connection member 92 that is attached to the distal end of the inner tube 32 and attaches the inner tube 32 to the keyhole-shaped hole 20 of the supporter 2. It consists of and. Note that a plurality of through holes 31b and 32b are provided in the peripheral portion to which the outer tube connecting member 91 of the outer tube 31 is attached and the peripheral portion to which the inner tube connecting member 92 of the inner tube 32 is attached. In this case, the outer tube 31, the inner tube 32, and the expansion / contraction fixing member 33 are formed of aluminum members.
[0044]
As shown in FIG. 5, the telescopic fixing member 33 includes a fixed base 34 that is formed in a cylindrical shape and has a thread groove 33 a on the inner surface, and a flange portion 35 that protrudes from the inner surface of the opening at one end of the fixed base 34. Is formed. An O-ring 36 is attached to the step formed by the inner surface of the fixed base 34 and the flange portion 35.
[0045]
The expansion / contraction fixing member 33 configured as described above is configured such that the expansion / contraction fixing member 33 is fastened to the threaded portion 31 a of the outer tube 31 and the O-ring 36 is interposed between the end portion of the outer tube 31 and the flange portion 35 of the expansion / contraction fixing member 33. The inner tube 32 can be fixed at an appropriate position by compressing and deforming the O-ring 36 and pressing the O-ring 36 against the inner tube 32. Therefore, according to the installation interval of the bracket 1 attached to the floor F, the handrail bar 3 can be expanded and contracted to adjust the length.
[0046]
In this case, the outer peripheral surface of the fixed base 34 is knurled, for example, and the operator's hand slips when the telescopic fixing member 33 is tightened and loosened with respect to the threaded portion 31 a of the outer tube 31. Can be eliminated.
[0047]
As shown in FIG. 5, the outer pipe connecting member 91 includes a lid body 93 that closes the opening of the outer pipe 31, and a mounting bolt 94 that is attached to the lid body 93 and can be coupled to the keyhole-shaped hole 20 of the column 2. The wing nut 95 is screwed onto the mounting bolt 94.
[0048]
The lid body 93 is formed by a disc-shaped lid portion 93 a that closes the opening of the outer tube 31, and a fitting portion 93 b that is formed in a cylindrical shape on one side surface of the lid portion 93 a and is fitted into the outer tube 31. Has been. In addition, a connecting hole 93c into which the front end of the bolt portion of the mounting bolt 94 is fitted is provided at a substantially central portion of the lid portion 93a. The fitting portion 93b is provided with attachment holes 93d communicating with the plurality of through holes 31b provided in the peripheral portion of the outer tube 31, and the through holes 31b of the outer tube 31 and the attachment holes of the fitting portion 93b. The lid body 93 can be attached to the opening of the outer tube 31 by connecting to 93d with a fixing means such as a rivet 96, for example.
[0049]
As shown in FIG. 5, the mounting bolt 94 is attached to the lid portion 93 a of the lid body 93 as well as a bolt portion 94 a to which the wing nut 95 is screwed and a base end portion of the bolt portion 94 a. And a bolt head 94 b that can be engaged with and disengaged from the keyhole-shaped hole 20 of the support column 2. Further, a neck portion 94c having two opposing flat surfaces is formed at the base end portion of the bolt portion 94a, and can be inserted into the cutout hole 22 of the keyhole-shaped hole 20 as shown in FIG. Is formed. Thus, the handrail bar 3 can be prevented from rotating with respect to the column 2 by inserting the neck portion 94 c provided on the bolt portion 94 a into the notch hole 22. Note that the mounting bolt 94 and the lid 93 are fixed by, for example, welding or the like in a state where the tip of the bolt 94a is fitted into the connecting hole 93c of the lid 93a.
[0050]
The outer pipe connecting member 91 and the inner pipe connecting member 92 are the same except for the size of the lid 93 and the other parts are the same. To do.
[0051]
In order to attach the handrail rod 3 configured as described above between the columns 2, first, the column 2 is erected on the bracket 1, and the expansion and contraction operation between the outer tube 31 and the inner tube 32 is not fixed. The bolt head 94b of the mounting bolt 94 is inserted into the insertion / removal hole 21 of the keyhole-shaped hole 20. Next, the plane of the neck portion 94c of the mounting bolt 94 is made horizontal with respect to the notch hole 22, the neck portion 94c is dropped into the notch hole 22, and the bolt head 94b is engaged with the side surface of the column 2 (FIG. 5B). reference). In this state, the wing nut 95 screwed into the bolt portion 94a is tightened to the bolt head 94b side, and the side face of the column 2 is sandwiched between the bolt head 94b and the wing nut 95, and the mounting bolt 94 is attached to the keyhole-shaped hole 20. Can be linked to. Thereafter, the expansion / contraction fixing member 33 of the handrail bar 3 is fastened to the threaded portion 31 a of the outer tube 31 to fix the expansion / contraction operation of the outer tube 31 and the inner tube 32.
[0052]
In order to remove the handrail rod 3 from the support column 2, the outer tube 31 and the inner tube 32 can be telescopically loosened by loosening the fastening of the telescopic fixing member 33 of the handrail rod 3 in the reverse order of the above description, and the wing nut 95 is loosened, the neck portion 94c of the mounting bolt 94 is moved above the notch hole 22, and the bolt head 94b is extracted from the insertion / removal hole 21.
[0053]
Next, the procedure for attaching the bracket 1 to the floor F will be described with reference to FIG.
[0054]
First, in a state where the movable support member 4 that is slidably mounted on the first column receiving portion 11 of the bracket 1 is moved to a position away from the fixing portion 13 for clamping, the first column receiving portion 11 is moved. The bracket 1 is disposed so as to be positioned at the periphery of the floor F and so that the clamping fixing portion 13 is positioned on the lower surface of the floor F (see FIG. 6A).
[0055]
Next, the cover plate 17 of the clamping fixing portion 13 is brought into contact with the lower surface of the floor F, and the locking surface 16a of the locking member 16 formed in the first support column receiving portion 11 is brought into contact with the lower surface of the floor F. In this state, the movable support member 4 is slid toward the clamping fixing portion 13 to bring the clamping portion 53b of the fixing bolt 5 into contact with the upper surface of the floor F (see FIG. 6B). In this state, when the clamping nut 52 of the fixing bolt 5 is rotated by a wrench (not shown) or the like and the clamping portion 53b of the clamping member 53 presses the upper surface of the floor F, the distal end portion of the movable support member 4 is moved. It tilts upward (turns) with the sliding portion 41 as a fulcrum. As a result, the knurled bolts 8 (81, 82) of the sliding portion 41 are engaged with each other on the opposing surface of the first column receiving portion 11, so that the first column receiving portion 11 and the movable support member 4 are engaged with each other. While fixing the sliding, the bracket 1 can be attached to the floor F by holding the floor F with the fixing bolt 5 and the fixing portion 13 for clamping (see FIG. 6C). Further, as shown in FIG. 6 (d), the auxiliary bolt 6 is rotated by a wrench (not shown) to press the pressing portion 63 b of the auxiliary fixing member 63 against the upper surface of the floor F. In this way, by pressing the upper surface of the floor F with the auxiliary bolt 6, it is possible to prevent the bracket 1 from rolling. Then, the support column 2 is inserted into the first support column receiving portion 11 of the bracket 1 attached to the floor F in this way and fixed to the bracket 1 by fixing the support column 2 with the support column fixing unit 14. (See FIG. 6 (e)).
[0056]
As described above, the handrail bar 3 is installed between the columns 2 standing on the bracket 1 attached to the floor F, so that the temporary handrail H is installed on the floor F such as the rooftop of the building. be able to.
[0057]
◎ Second embodiment
FIG. 7 is a schematic perspective view showing an attachment state of the second embodiment of the temporary handrail according to the present invention, FIG. 8 is an enlarged perspective view showing the attachment state of the temporary handrail, and FIG. 9 is the temporary handrail. It is an expanded sectional view (b) which shows the III section of (a) of (a), and (a).
[0058]
The second embodiment is a case where the bracket 1 of the temporary handrail H is attached to a wall W such as a rooftop of a building and the column 2 is erected on the second column support part 12.
[0059]
That is, as shown in FIGS. 7, 8, and 9, the temporary handrail H of the second embodiment includes a plurality of brackets 1 that are detachably attached to the end of a wall W such as a rooftop of a building, and the like. The column 1 is composed of a column 2 made of a hollow member having a rectangular cross section that is detachably mounted on the bracket 1, and a handrail rod 3 that is detachably installed between the columns 2.
[0060]
The bracket 1 is configured similarly to the first embodiment. That is, as shown in FIGS. 7 to 9, the first support column 11 is positioned horizontally on the upper surface of the wall W, and one end of the first support column 11 is connected orthogonally to the support column. 2 is inserted into and supported by the second support column 12, is formed at the end of the second support column 12, and is fixed to the clamping portion 13 that comes into contact with the outer surface of the wall W, and the first support column A movable support member 4 that is slidably mounted orthogonally with respect to the receiving portion 11, and a sandwiching member that is screwed into the movable support member 4 and that cooperates with the sandwiching fixing portion 13 to sandwich the wall W And a plurality of (in this case, two) auxiliary movable fixing members 6 that are inserted and screwed into the movable support member, press the wall W, and can move toward and away from the wall W. It is configured.
[0061]
In addition, since the structure of the bracket 1, the support | pillar 2, and the handrail rod 3 is the same as that of said 1st embodiment, the same code | symbol is attached | subjected to the same part and description is abbreviate | omitted.
[0062]
Next, a procedure for attaching the bracket 1 to the wall W will be described with reference to FIG.
[0063]
First, in a state where the movable support member 4 that is slidably mounted on the first column receiving portion 11 of the bracket 1 is moved to a position away from the fixing portion 13 for clamping, the first column receiving portion 11 is moved. The bracket 1 is arranged so as to be positioned horizontally on the upper surface of the wall W and to position the holding fixing portion 13 on the outer surface of the wall W (see FIG. 11A).
[0064]
Next, the cover plate 17 of the fixing part 13 for clamping is brought into contact with the outer surface of the wall W, and the movable support member 4 is slid toward the fixing part 13 for clamping to hold the clamping part 53b of the clamping member 53 of the fixing bolt 5. Is brought into contact with the inner surface of the wall W (see FIG. 11B). In this case, the locking member 16 formed on the first support column receiving portion 11 contacts the upper surface of the wall W. In this state, the clamping nut 52 of the fixing bolt 5 is rotated by a wrench (not shown) or the like, and the distal end portion of the movable support member 4 as the clamping portion 53b of the clamping member 53 presses the inner surface of the wall W. Rotates around the sliding portion 41 (rotating leftward in FIG. 11). As a result, the two knurled bolts 8 of the sliding portion 41 engage with each other on the opposing surface of the first column receiving portion 11, so that the sliding between the first column supporting portion 11 and the movable support member 4 is fixed. At the same time, the fixing bolt 5 and the fixing portion 13 for clamping can cooperate to clamp the wall W, and the bracket 1 can be attached to the wall W (see FIG. 11C).
[0065]
Further, as shown in FIG. 11 (d), the auxiliary bolt 6 is rotated by a wrench or the like (not shown) to press the pressing portion 63 b of the auxiliary fixing member 63 against the inner side surface (headwood portion) of the wall W. In this way, by pressing the inner side surface (head portion) of the wall W with the auxiliary bolt 6, the bracket 1 can be prevented from rolling.
[0066]
Next, the support column 2 is inserted into the second support column receiving portion 12 of the bracket 1 attached to the wall W in this way, and the support column 2 is fixed to the bracket 1 by fixing the support column 2 with the support column fixing unit 14. It can stand up (refer FIG.11 (e)).
[0067]
Thus, by installing the handrail rod 3 between the columns 2 standing on the bracket 1 attached to the wall W, the temporary handrail H can be installed on the wall W such as the rooftop of the building.
[0068]
【The invention's effect】
As described above, according to the present invention, since it is configured as described above, the following excellent effects can be obtained.
[0069]
(1) According to the invention described in claim 1, when the bracket is provided with the first support column support portion and the second support column support portion that support the support column, and the bracket is attached to the floor, the first support column support unit When the column is supported by the bracket and the bracket is attached to the wall, the column is supported by the second column receiving portion. Therefore, the temporary handrail can be formed on both the floor or the wall with one type of bracket. Further, since it is not necessary to prepare two types of brackets, inventory management is facilitated and the cost can be reduced.
[0070]
(2) Since the invention according to claim 2 can press the floor or the wall by the auxiliary movable fixing member, in addition to the above (1), the rolling of the bracket with respect to the floor or the wall can be prevented, The bracket and the handrail can be securely attached.
[0071]
(3) In the invention described in claim 3, the pair of stopper members engage with the first column support portion due to the inclination of the movable support member accompanying the sandwiching operation of the sandwiching fixing portion and the sandwiching movable fixing member. In addition to the above (1) or (2), the bracket can be further securely attached, and the handrail can be attached in a stable state.
[0072]
(4) The invention according to claim 4 is provided with a non-slip member provided on a surface of the bracket that is in contact with the floor or wall of the holding fixed portion for holding and the movable movable member for holding, and thereby the holding fixed portion for holding and the movable fixing member for holding In addition to the above (1), the bracket and the handrail can be further securely attached.
[0073]
(5) The invention of claim 5 is provided with a holding member for holding, by providing a non-slip member on the surface of the bracket, the holding fixed part for holding, the movable holding member for holding, and the floor or wall of the auxiliary movable fixing part. Since it is possible to prevent slipping between the sandwiching movable fixing member and the auxiliary movable fixing portion and the floor or the wall, in addition to the above (2), it is possible to further ensure the attachment of the bracket and the handrail.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an attachment state of a first embodiment of a temporary handrail according to the present invention.
FIG. 2 is a perspective view showing a state where the temporary handrail is attached to the floor.
FIG. 3 is a side view (a) of the temporary handrail and an enlarged cross-sectional view (b) showing an I part of (a).
FIG. 4 is a plan view showing an attachment state of the temporary handrail.
FIG. 5 is a side view (a) showing a mounting structure of the support rail and the handrail bar for the temporary handrail, and a cross-sectional view (b) along the line II-II in FIG. 5 (a).
FIGS. 6A to 6E are schematic views (a) to (e) showing an attachment procedure of the first embodiment of the temporary handrail according to the present invention. FIGS.
FIG. 7 is a schematic perspective view showing an attachment state of the second embodiment of the temporary handrail according to the present invention.
FIG. 8 is a perspective view showing a state where the temporary handrail is attached to the wall.
FIG. 9 is a side view (a) of the temporary handrail and an enlarged cross-sectional view (b) showing a portion III of (a).
10 is a view as viewed from A in FIG. 9;
FIGS. 11A to 11E are schematic views (a) to (e) showing a mounting procedure of the second embodiment of the temporary handrail according to the present invention. FIGS.
[Explanation of symbols]
F floor
H Temporary handrail
W wall
1 Bracket
2 props
3 Handrail stick
4 Movable support members
5 Movable fixed member for clamping (fixing bolt)
6 Auxiliary movable fixing member (auxiliary bolt)
11 First support column
12 Second column support
13 Fixed part for clamping
18, 54, 64 Non-slip member
81 Stopper member (Knurled bolt)

Claims

Temporary installation comprising a plurality of brackets that are detachably attached to the end of the floor or wall, columns that are detachably mounted on these brackets, and handrail bars that are detachably installed between these columns. A handrail,
The bracket includes a first column receiving part that supports the column,
A second strut receiving portion coupled orthogonally to the first strut receiving portion and supporting the strut;
A clamping fixing portion formed at an end portion of the second column support portion and abutting against one side of the floor or wall;
A movable support member that is slidably mounted orthogonally to the first column support portion, and is screwed into the movable support member, and cooperates with the clamping fixing portion to form the floor or wall. A temporary handrail characterized by comprising: a movable movable member for clamping.

The temporary handrail according to claim 1,
A temporary handrail, wherein one or more auxiliary movable fixing members that press and move the floor or wall against the floor or wall and are screwed into and inserted into the movable support member.

The temporary handrail according to claim 1 or 2,
The sliding portion of the movable support member is provided with a pair of stopper members that engage with opposing surfaces of the first support column receiving portion when the movable support member is inclined in accordance with the clamping operation. A temporary handrail.

The temporary handrail according to claim 1,
A temporary handrail, wherein a non-slip member is provided on a surface of the holding member for holding and the movable fixing member for holding that are in contact with the floor or wall.

The temporary handrail according to claim 2,
A temporary handrail, wherein a non-slip member is provided on a surface of the clamping fixed portion, the clamping movable fixing member, and the auxiliary movable fixing member that abuts against a floor or a wall.