JP2004076468A

JP2004076468A - Handrail mounting apparatus and handrail post

Info

Publication number: JP2004076468A
Application number: JP2002240007A
Authority: JP
Inventors: Tatsuo Ono; 小野　辰雄
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-21
Filing date: 2002-08-21
Publication date: 2004-03-11
Anticipated expiration: 2022-08-21
Also published as: JP4011436B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide a handrail mounting apparatus and a handrail post allowing the optional detachment of a handrail even at an intermediate part of a framed scaffolding once framed in multiple stages, preventing the fall and loss of parts and an operation failure caused by rust and facilitating handrail attachment/detachment work. <P>SOLUTION: This handrail mounting apparatus T is composed of a bar body 2 rotatably inserted in the handrail post R in a diametrial direction, a locking part 1 provided at the tip of the bar body 2 to lock the handrail, and an operating lever S provided on the proximal end side of the bar body 2. The locking part 1 is shaped to correspond to or to be insertable in a hole 16 provided on the handrail 15 side and to be engaged with the hole 16 when the bar body 2 is rotated by the own weight of the operating lever S. The handrail mounting apparatus T is mounted to the handrail post R. <P>COPYRIGHT: (C)2004,JPO

Description

【０００１】
【発明の属する技術分野】
本発明は、建枠の建材に着脱自在に取付けられる手摺保持用の手摺支柱の手摺取付装置の改良およびこの手摺取付装置を備えた手摺支柱に関する。
【０００２】
【従来の技術】
一般に建物の建設現場、土木工事の現場では足場装置または支保工として利用される枠組足場が設置されている。この枠組足場は、たとえば、特開平７−２７９４０２号公報に示すように、多数の足場枠を下方から上方に段組し、各足場枠に手摺を先行手摺として順次下方から上方に組付けるものである。
【０００３】
しかし、この手摺は縦方向に縦杆と、水平方向の手摺杆および横杆が一体化されているため、この手摺を先行手摺として下方の足場板状で組付けるには重量が重く搬送や、着脱作業が困難である。
【０００４】
そこで、本発明者は縦杆と手摺杆とを分離し、足場枠の段組に応じて先行手摺として縦杆と手摺杆とを独立して組付ける手摺の取り付け装置を開発し、特許出願している（特願２００１−１６３８８４号）。
【０００５】
この手摺の取付装置は図１０に示すように取り付け手段Ａ、Ｂを介して足場枠に取付けられる左右一対の手摺支柱５５と、手摺支柱５５、５５間に取り付け手段Ｃを介して取付けられる手摺６６とからなり、取付手段Ｃは、手摺支柱５５に設けた係止部７６と手摺６６の端部に形成した正面ややＴ字状の取付孔７５とからなるものである。
【０００６】
そして、たとえば左側の足場枠上に起立させている左方の手摺支柱５５の係止部７６に手摺６６の左側の取付孔７５を介して装着し、次にこの手摺６６の右側の取り付け孔７５に右方の手摺支柱５５の係止部７６を挿入しかつこの手摺支柱５５を手摺５５とともに上方に持ち上げながら右方の足場枠に結合させるものである。
【０００７】
【発明が解決しようとする課題】
上記新たに開発した手摺の取付装置では機能上、特に問題があるわけではないが、以下のような不具合の改善が望まれた。
【０００８】
すなわち、手摺６６を手摺支柱５５に結合する際には手摺支柱５５と手摺６６とを一本づつ順番に取付けていくから問題は無いが、足場枠と手摺とを多数に段組した後には左右の手摺支柱５５、５５間の距離を調整できず、たとえば、枠組足場の中間で作業をするような場合、中間に設置された手摺５５が邪魔になる場合が生じ、この手摺５５をはずしたい場合がある。
【０００９】
しかし、一度設置された中間の手摺は上記手摺支柱５５、５５間の距離に規制され、手摺５５を左右方向にずらすことができず、結果として手摺６６を取り外すことができない。
【００１０】
また、取付手段Ｃをボルトとナット、ピンまたはグラビティロック等の従来から知られている取付装置を利用すれば、このような不具合を解消できるが、逆にこのような取付具は手摺支柱５５等から独立しているための単独で落下したり、搬送中に紛失したり、あるいは長期間の使用中に錆付いてしまう恐れがあり、さらに、着脱時に手を伸ばして作業するため、操作性も悪いという不具合がある。
【００１１】
そこで、本発明の目的は一度多段に段組した枠組足場の中間においても任意に手摺をはずすことができ、部品の落下、紛失や、錆つきによる作動不良を防止でき、手摺の着脱作業も容易な手摺取付装置および手摺支柱を提供することである。
【００１２】
【課題を解決するための手段】
上記課題を解決するための第１の手段として、本発明の手摺取付装置は、建枠の建材に着脱自在に取付けられる手摺支柱に、手摺を直行する方向に取り付ける手摺取付装置において、手摺支柱に直径方向に向けて回転自在に挿入される棒状本体と、棒状本体の先端に設けた手摺係止用の係止部と、棒状本体の基端側に設けた操作桿とで構成され、係止部を、手摺側に設けた孔に符合もしくは挿入可能であって、操作桿の自重または回転操作で棒状本体が回転したとき上記孔と係着可能な形状としたことを特徴とする。
【００１３】
上記構成としたから、手摺に設けた孔に係止部を挿入し、棒状本体を回転させるだけで、手摺を係止することが可能であるので、簡易に手摺を手摺支柱に固定することが可能であるとともに、棒状本体を回転させるのに操作桿を操作または操作桿自体の自重を利用すれば良いので、その操作も簡単である。
【００１４】
さらに、手摺を取り外す際には、操作桿を回転させるだけでよいから、取外しも簡単であり、また、棒状本体が錆びつき等で回転に抵抗が生じる場合にあっても、操作桿を設けているので、操作桿に比較的小さな力を加えるだけで棒状本体を回転させることが可能であるから、操作性も向上する。
【００１５】
したがって、上述のように手摺が手摺支柱に着脱自在に取付けられていることとなり、一度多段に段組した枠組足場の中間においても任意に手摺をはずすことが可能となる。
【００１６】
また、係止部を上記の形状としているので、手摺が手摺支柱から脱落することが防止され、手摺支柱に当該手摺取付装置を使用した際には、係止部と操作桿とにより手摺取付装置が手摺支柱から脱落することが防止されるので、手摺取付装置の落下、紛失が防止されるとともに、安全性も向上する。
【００１７】
また、第２の課題解決手段は、第１の課題解決手段において、係止部と孔とが矩形、楕円形、三角形または平行四辺形の形状に形成されてなる。
【００１８】
したがって、具体的には係止部と孔とを上記のような形状としてもよい。
【００１９】
さらに、第３の課題解決手段は、第１または２の課題解決手段において、操作桿が、上記棒状本体に対し垂直に取付けられる操作部と、操作部の先端に設けた手摺支柱に引っ掛かる引掛部とを有してなり、当該引掛部が手摺支柱に引っ掛かった状態のとき、上記係止部が上記孔と係着して手摺を係止することを特徴とする。
【００２０】
したがって、操作桿の引掛部が、手摺を係止した状態において、手摺支柱に引っ掛かるので、手摺が手摺支柱に固定されている状態か否かが、目視で簡単に確認できるので、作業員の確認作業が簡易なものとなる。
【００２１】
また、引掛部が手摺支柱に引っ掛かるので、手摺支柱や手摺に振動が加えられても、操作桿のふらつきが防止されるので、一層安定的に手摺の固定状態を維持することが可能である。
【００２２】
また、さらに、第４の課題解決手段は、支柱本体と、支柱本体の下方に設けられて当該支柱本体を建材に着脱自在に取付ける取付手段と、支柱本体の上方に取付けた第１、２または３の課題解決手段の請求項１、２または３に記載の手摺取付装置とを有する手摺支柱である。
【００２３】
したがって、上記した作用効果を実現できることは無論である。
【００２４】
そして、さらに、第５の課題解決手段は、第４の課題解決手段において、取付手段が、建材を抱持するプレートと、建材を挟持する挟持具とからなり、プレートは、プレート本体と、プレート本体の先端側から基端側に向って設けた切欠と、切欠の中間部に設けた建材を抱持する抱持孔とで構成され、その基端側が支柱本体に固着され、挟持具は、挟持具本体と、挟持具本体の先端側に設けた建材を挿入する切欠と、挟持具本体の先端に設けた上記切欠と協働して建材を挟持する楔機構とで構成され、その基端側が支柱本体に固着されたことを特徴とする。
【００２５】
上述した、第４の課題解決手段と同様の作用効果を実現できることは無論のこととして、プレートに切欠を設けたので、建材に手摺支柱を取付ける際、建材に取付けられた種々の部材が、切欠内を通過させることが可能であるので、種々の部材が邪魔になることはない。
【００２６】
【発明の実施の形態】
本発明の実施の形態は、図１ないし図２に示す第１の実施の形態と、図４に示す第２の実施の形態がある。第１の実施の形態における手摺取付装置Ｔは、図１に示すように、手摺支柱Ｒに手摺支柱Ｒの直径方向に向けて回転自在に挿入される棒状本体２と、棒状本体２の先端に設けた手摺係止用の係止部１と、棒状本体２の基端側にピン５で結合した操作桿Ｓとで構成され、また、図１（Ｃ）は手摺取付装置Ｔの正面図であるが、係止部１は、手摺取付装置Ｔを正面から見て、長円形をしており、その長手方向の長さは、後述する手摺１５の孔１６の上下方向の長さより長く設定されている。なお、操作桿Ｓと棒状本体２との結合には、ピン５による結合以外の他の慣用手段を用いても良い。
【００２７】
そして、この手摺取付装置Ｔは、たとえば、図４に示すように、手摺支柱Ｒの支柱本体３１の上方に取付けられ使用される。
【００２８】
一方、手摺１５側に設けた孔１６は、図２に示すように、正面から見て全体がややＴ字状の形状をしており、これは中央の貫通孔部１１ａの両側壁を切欠いて連接した一対の貫通溝１１ｂとで構成されている。そして、上記貫通孔部１１ａの縦溝の内径Ｌ１と対角線方向の寸法は係止部１の長手方向の長さより長く形成され、上記貫通溝１１ｂの巾寸法Ｌ２は棒状本体２の外径より長く、かつ、係止部１の長手方向の長さより短く成形されている。
【００２９】
これにより、貫通溝１１ｂ内に棒状本体２を嵌合させながら係止部１を９０度回転させると係止部１が貫通溝１１ｂと符合し孔１６から抜けなくなる。
【００３０】
さらに、手摺１５の孔１６が、上記のような形状であるので、図３に示すように、係止部１の長手方向の軸線が手摺支柱Ｒの軸線に対し並行な状態にあっても、手摺１５を手摺支柱Ｒに対し斜めにして、孔１６に係止部１を挿入可能となっている。
【００３１】
操作桿Ｓは、図１（Ａ）、（Ｂ）および（Ｃ）に示すように、上記棒状本体２に対し垂直に、かつ、手摺支柱Ｒの軸線に対し並行に取付けられる操作部３と、操作部３の先端に設けた手摺支柱Ｒに引っ掛かる引掛部４とを有してなり、当該引掛部４が手摺支柱Ｒに引っ掛かった状態で、上記係止部１の長円形長手方向の軸線が手摺支柱Ｒに対し並行となるように設定されている。引掛部４は、本実施の形態では手摺支柱Ｒが円筒状であるので、半円形状とされているが、手摺支柱Ｒの形状に合わせて形成するようにすれば良い。
【００３２】
つづいて、その作用について説明すると、図２に示すように、先ず操作桿Ｓを手摺支柱Ｒに対し９０度図中において反時計回り方向に向って、回転させる。すると、操作桿Ｓは、棒状本体２に連結されているので、棒状本体２も手摺支柱Ｒ内で９０度図中反時計回り方向に回転する。さらに、係止部１は、棒状本体２の先端に設けられているので、係止部１も９０度図中右方向に回転し、係止部１を水平に保持する。この状態で孔１６内に係止部１を貫通させながら挿入し、棒状本体２を右方の貫通溝１１ｂに嵌入し、ついで、操作桿Ｓを上記とは逆に時計回り方向に９０度回転させる。
【００３３】
このとき、手摺支柱Ｒと操作桿Ｓとが並行な状態となり、係止部１の長手方向の軸線が手摺支柱Ｒと並行となる。加えて、操作桿Ｓの引掛部４が手摺支柱Ｒに引っ掛かる。したがって、この引掛部４が手摺支柱Ｒに引っ掛かるので、手摺支柱や手摺に振動等が負荷されても、操作桿のふらつきが防止されるので、一層安定的に手摺の固定状態を維持することが可能である。このとき、操作桿Ｓを操作して、操作桿Ｓを手摺支柱Ｒの軸線に対し並行となる位置、すなわち、元の位置に戻しても良いが、操作桿Ｓをわざわざ元の位置に戻さずとも、操作桿Ｓ自体の重みで自動的に、操作桿Ｓが手摺支柱Ｒと並行な状態に戻る。なお、上述の効果は失われるが、引掛部４を設けなくとも、使用可能である。
【００３４】
すると、係止部１の長手方向の長さは、手摺１５の孔１６における貫通溝１１ｂの上下の巾寸法Ｌ２より長いので、係止部１が孔１６から抜けなくなり、手摺１５が手摺取付装置Ｔから抜けなくなる。すなわち、手摺１５を固定することができ、かつ、孔１６には、棒状本体２が挿入されている状態であるから、手摺１５に振動や力を負荷しても、手摺支柱から脱落してしまうことは無い。
【００３５】
したがって、手摺に設けた孔に係止部を挿入し、棒状本体を回転させるだけで、手摺を係止することが可能であるので、簡易に手摺を手摺支柱に固定することが可能であるとともに、棒状本体を回転させる操作桿の自重を利用しているので、その操作も簡単である。
【００３６】
逆に、手摺１５を、取り外す際には、操作桿Ｓを手摺支柱Ｒと並行な状態から図中反時計回り方向に９０度回転させ、係止部１と手摺１５の孔１６に符合させて手摺１５を抜けばよい。
【００３７】
したがって、手摺を取り外す際には、操作桿を回転させるだけでよいから、取外しも簡単であり、また、棒状本体が錆びつき等で回転に抵抗が生じる場合にあっても、操作桿を設けているので、いわゆる、梃と同様の働きで、操作桿に比較的小さな力を加えるだけで棒状本体を回転させることが可能であるから、操作性も向上する。
【００３８】
したがって、上述のように手摺が手摺支柱に着脱自在に取付けられていることとなり、一度多段に段組した枠組足場の中間においても任意に手摺をはずすことが可能となる。
【００３９】
また、係止部を上記の形状としているので、手摺が手摺支柱から脱落することが防止され、手摺支柱に当該手摺取付装置を使用した際には、係止部と操作桿とにより手摺取付装置が手摺支柱から脱落することが防止されるので、安全性も向上する。
【００４０】
さらに、手摺１５の孔１６が、上記のような形状であるので、すなわち、中央に対角線方向の寸法が係止部１の長手方向の長さより大きい貫通孔部１１ａを備えているので、図３に示すように、係止部１の長手方向の軸線が手摺支柱Ｒに並行な状態にあっても、手摺１５を手摺支柱Ｒに対し斜めにして、孔１６に係止部１を挿入可能となっている。このように、手摺１５を手摺支柱Ｒに対し斜めにして、手摺１５を手摺支柱Ｒに取り付け可能であるので、図５に示すように、１つの手摺支柱Ｒを建材３０に固定して、手摺１５の一端を上記のようにして取付けた後、別の手摺支柱Ｒに手摺１５の他端を固定してから、当該手摺支柱Ｒを建材３０に取付けることが可能となり、建材に架設した足場板Ａ上の作業員が、その足場板Ａより階上の手摺支柱に手摺を取付けることが可能であるので、作業員の安全性が向上する。
【００４１】
なお、係止部の形状と手摺の孔の形状は、上述したものに限られず、手摺を手摺支柱に対し斜めにして取付けることを考慮しなければ、たとえば、係止部と手摺の孔の形状を矩形、楕円形、三角形や平行四辺形としても良く、また、本実施の形態では図１のように係止部の図中ほぼ中心に棒状本体を結合させているが、係止部の図中ほぼ中心以外に棒状本体を結合してもよい。
【００４２】
第２の実施の形態は、図４に示すように、支柱本体３１の上方２箇所に設けた第１の実施の形態の手摺取付装置Ｔと、支柱本体３１の下方に設けた支柱本体３１を建材３０に着脱自在に取付ける取付手段とを備えた手摺支柱Ｒである。
【００４３】
上記取付手段は、図４示すように、建材を抱持するプレートＰと、建材を挟持する挟持具Ｈとからなり、プレートＰは、図６ないし図７に示すように、プレート本体１０と、プレート本体１０の先端側から基端側に向かって設けた切欠１２と、切欠１２の中間部に設けた建材３０を抱持する抱持孔１６とで構成され、その基端側が支柱本体３１に固着されている。そして、プレート本体１０は平板な板で形成され、その側方には対向する一対の立ち上り部１３、１４が設けられ、基端側は手摺支柱Ｒの支柱本体３１に固着されている。この立ち上り部１３、１４は強度を補償するために設けられているが、特に設けなくとも使用可能である。
【００４４】
他方、挟持具Ｈは、図８ないし図９に示すように、挟持具本体２１と、挟持具本体２１の先端側に設けた建材３０を挿入する切欠２６と、挟持具本体２１の先端に設けた上記切欠２６と協働して建材３０を挟持する楔機構Ｋとで構成され、その基端側が支柱本体３１に固着されている。そして、挟持具本体２１は平板な板で形成され、その側方には対向する一対の立ち上り部２４、２５が設けられ、基端側は手摺支柱Ｒの支柱本体３１に固着されている。この立ち上り部２４、２５は強度を補償するために設けられているが、特に設けなくとも使用可能である。
【００４５】
また、楔機構Ｋは、楔２３と楔２３を固定する略Ｕ字状の固定具２２とで構成され、挟持具本体２１の下面に固定具２２のＵ字の開口端側が接合されており、楔２３が挟持具本体２１と上記固定具２２でつくられるスリットに挿入される。
【００４６】
さて、この手摺支柱Ｒの建材３０への取付け方であるが、先ず、建材３０の上方から、プレートＰの抱持孔１６に建材３０を挿入する。このとき、プレートＰには上記切欠１２を設けてあるので、切欠１２内を建材３０に取付けられた種々の部材（図示せず）が通過することができるから、上記の種々の部材が邪魔になることはない。
【００４７】
つぎに、建材３０を挟持具Ｈの切欠２６内に挿入し、楔２３を側方から固定具２２と挟持具本体２１とでつくられるスリットに挿入しながら、切欠２６方向に打ち込む。すなわち、上記切欠２６と楔２３とで、建材３０を挟持することになり、挟持具Ｈと建材３０とが固定される。すると、手摺支柱Ｒが建材３０に固定される。
【００４８】
さらに、手摺を手摺支柱Ｒに取付ける際には、第１の実施の形態と同様であるので、その説明を省略するが、その作用効果は第１の実施の形態と同様である。
【００４９】
【発明の効果】
各請求項の発明によれば、手摺に設けた孔に係止部を挿入し、棒状本体を回転させるだけで、手摺を係止することが可能であるので、簡易に手摺を手摺支柱に固定することが可能であるとともに、棒状本体を回転させるのに操作桿を操作または操作桿の自重を利用しているので、その操作も簡単である。
【００５０】
さらに、手摺を取り外す際には、操作桿を回転させるだけでよいから、取外しも簡単であり、また、棒状本体が錆びつき等で回転に抵抗が生じる場合にあっても、操作桿を設けているので、操作桿に比較的小さな力を加えるだけで棒状本体を回転させることが可能であるから、操作性も向上する。
【００５１】
したがって、上述のように手摺が手摺支柱に着脱自在に取付けられていることとなり、一度多段に段組した枠組足場の中間においても任意に手摺をはずすことが可能となる。
【００５２】
また、係止部を上記の形状としているので、手摺が手摺支柱から脱落することが防止され、手摺支柱に当該手摺取付装置を使用した際には、係止部と操作桿とにより手摺取付装置が手摺支柱から脱落することが防止されるので、安全性も向上する。
【００５３】
さらに、請求項３の発明によれば、操作桿の引掛部が、手摺を係止した状態において、手摺支柱に引っ掛かるので、手摺が手摺支柱に固定されている状態か否かが、目視で簡単に確認できるので、作業員の確認作業が簡易なものとなる。
【００５４】
また、引掛部が手摺支柱に引っ掛かるので、手摺支柱や手摺に振動が加えられても、操作桿のふらつきが防止されるので、一層安定的に手摺の固定状態を維持することが可能である。
【００５５】
そして、請求項５に記載の発明によれば、プレートに切欠を設けたので、建材に手摺支柱を取付ける際、建材に取付けられた種々の部材が、切欠内を通過させることが可能であるので、種々の部材が邪魔になることはない。
【００５６】
なお、係止部の長手方向の軸線が手摺支柱に並行な状態にあっても、手摺を手摺支柱に対し斜めにして、孔に係止部を挿入可能としておけば、１つの手摺支柱を建材に固定して、手摺の一端を上記のようにして取付けた後、別の手摺支柱に手摺の他端を固定してから、当該手摺支柱を建材に取付けることが可能となり、建材に架設した足場板上の作業員が、その足場板より階上の手摺支柱に手摺を取付けることが可能であるので、作業員の安全性が向上するという効果もある。
【図面の簡単な説明】
【図１】（Ａ）手摺支柱に取付けられた第１の実施の形態における手摺取付装置の右側面図である。
（Ｂ）手摺支柱に取付けられた第１の実施の形態における手摺取付装置の平面図である。
（Ｃ）手摺支柱に取付けられた第１の実施の形態における手摺取付装置の正面図である。
【図２】第１の実施の形態の手摺取付装置の係止部を手摺の孔に挿入した状態における手摺取付装置の正面図である。
【図３】手摺支柱に対し手摺を斜めにして、第１の実施の形態の手摺取付装置の係止部を、手摺の孔に挿入した状態における手摺取付装置の正面図である。
【図４】手摺取付装置と、取付手段とを備えた手摺支柱の右側面図である。
【図５】手摺を取付けている状態を示す枠組足場の正面図である。
【図６】プレートの平面図である。
【図７】プレートの右側面図である。
【図８】挟持具の平面図である。
【図９】挟持具の右側面図である。
【図１０】従来の手摺取付装置の正面図である。
【符号の説明】
１　係止部
２　棒状本体
３　操作部
４　引掛部
１０　プレート本体
１１　抱持孔
１２、２６　切欠
１５　手摺
１６　孔
２１　挟持具本体
２２　固定具
２３　楔
３０　建材
３１　支柱本体
Ｈ　挟持具
Ｋ　楔機構
Ｐ　プレート
Ｒ　手摺支柱
Ｓ　操作桿
Ｔ　手摺取付装置[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in a handrail mounting device for a handrail support for holding a handrail which is detachably attached to a building material of a building frame, and to a handrail support provided with the handrail mounting device.
[0002]
[Prior art]
Generally, at a construction site of a building or a site of civil engineering work, a framework scaffold used as a scaffolding device or a shoring is installed. For example, as shown in Japanese Patent Application Laid-Open No. 7-279402, this framed scaffold is composed of a number of scaffold frames that are stepped from below to above, and handrails are sequentially attached to each scaffold frame from below to above as handrails. is there.
[0003]
However, since this handrail is vertically integrated with the vertical bar, the horizontal handrail bar, and the horizontal bar, it is heavy to transport the handrail as a preceding handrail in a lower scaffold plate shape, Removable work is difficult.
[0004]
Therefore, the present inventor has developed a handrail mounting device that separates a vertical rod and a handrail rod into separate vertical rods and a handrail rod as a preceding handrail according to the step of the scaffold frame, and has filed a patent application. (Japanese Patent Application No. 2001-163884).
[0005]
As shown in FIG. 10, the handrail mounting device includes a pair of left and right handrail posts 55 attached to the scaffolding frame via attachment means A and B, and a handrail 66 attached between the handrail posts 55 and 55 via attachment means C. The attachment means C comprises a locking portion 76 provided on the handrail support 55 and a front slightly T-shaped attachment hole 75 formed at an end of the handrail 66.
[0006]
For example, the handrail 66 is attached to the locking portion 76 of the left handrail support 55 standing on the left scaffold frame via the left mounting hole 75 of the handrail 66, and then the right mounting hole 75 of the handrail 66 is mounted. Then, the locking portion 76 of the right handrail support 55 is inserted into the right handrail support 55, and this handrail support 55 is coupled to the right scaffold frame while lifting the handrail support 55 together with the handrail 55 upward.
[0007]
[Problems to be solved by the invention]
Although the newly developed handrail mounting device does not have any particular problem in function, improvement of the following problems has been desired.
[0008]
That is, when connecting the handrail 66 to the handrail support 55, there is no problem because the handrail support 55 and the handrail 66 are attached one by one in order. When the distance between the handrail supports 55, 55 cannot be adjusted, for example, when working in the middle of the framed scaffold, the handrail 55 installed in the middle may interfere, and it is desired to remove the handrail 55. There is.
[0009]
However, the intermediate handrail once installed is restricted by the distance between the handrail supports 55, 55, and the handrail 55 cannot be shifted in the left-right direction. As a result, the handrail 66 cannot be removed.
[0010]
Further, if a conventionally known mounting device such as a bolt and a nut, a pin, or a gravity lock is used as the mounting means C, such a problem can be solved. Because it is independent from the unit, it may drop alone, be lost during transportation, or rust during long-term use. There is a problem.
[0011]
Therefore, it is an object of the present invention to be able to remove the handrail arbitrarily even in the middle of a framed scaffold that has been multi-tiered once, to prevent malfunctioning due to dropping, loss or rusting of parts, and to easily attach and detach the handrail. A handrail mounting device and a handrail support are provided.
[0012]
[Means for Solving the Problems]
As a first means for solving the above-mentioned problems, a handrail mounting device according to the present invention includes a handrail mounting device for mounting a handrail in a direction perpendicular to a handrail support that is detachably mounted on a building material of a building frame. A rod-shaped main body rotatably inserted in the diametric direction, a locking part for locking a handrail provided at a distal end of the rod-shaped main body, and an operation rod provided on a base end side of the rod-shaped main body, are locked. The portion can be matched or inserted into a hole provided on the handrail side, and has a shape capable of engaging with the hole when the rod-shaped main body is rotated by its own weight or a rotation operation of the operation rod.
[0013]
With the above configuration, it is possible to lock the handrail simply by inserting the locking portion into the hole provided in the handrail and rotating the rod-shaped main body, so that the handrail can be easily fixed to the handrail support. It is possible to operate the operation stick or to use the own weight of the operation stick itself to rotate the rod-shaped main body, so that the operation is also easy.
[0014]
Furthermore, when removing the handrail, it is only necessary to rotate the operation rod, so it is easy to remove.In addition, even when the rod-shaped body is rusted and resistance to rotation occurs, the operation rod is provided. Since it is possible to rotate the rod-shaped main body only by applying a relatively small force to the operation rod, the operability is also improved.
[0015]
Therefore, as described above, the handrail is detachably attached to the handrail support, and the handrail can be arbitrarily removed even in the middle of a framed scaffold once multi-tiered.
[0016]
Further, since the locking portion has the above-mentioned shape, the handrail is prevented from falling off from the handrail support. When the handrail mounting device is used for the handrail support, the handrail mounting device is operated by the locking portion and the operation rod. Is prevented from falling off from the handrail support, so that the handrail mounting device is prevented from dropping and losing, and safety is improved.
[0017]
According to a second aspect of the present invention, in the first aspect, the locking portion and the hole are formed in a rectangular, elliptical, triangular, or parallelogram shape.
[0018]
Therefore, specifically, the locking portion and the hole may be formed as described above.
[0019]
Further, a third problem solving means is the first or second problem solving means according to the first or second problem solving means, wherein the operating rod is vertically attached to the rod-shaped main body, and a hooking portion which is hooked on a handrail support provided at a tip of the operating portion. And wherein when the hooking portion is hooked on the handrail support, the locking portion engages with the hole to lock the handrail.
[0020]
Therefore, since the hook of the operation rod is hooked on the handrail support in a state where the handrail is locked, it is easy to visually check whether or not the handrail is fixed to the handrail support, so that the worker can confirm. The work becomes simple.
[0021]
Further, since the hook portion is hooked on the handrail support, even if vibration is applied to the handrail support or the handrail, the operation rod is prevented from wobbling, so that the fixed state of the handrail can be more stably maintained.
[0022]
Still further, the fourth object of the present invention is to provide a column main body, mounting means provided below the column main body to detachably mount the column main body to a building material, and a first, second or first or second mounted above the column main body. According to a third aspect of the present invention, there is provided a handrail support having the handrail mounting device according to the first, second, or third aspect.
[0023]
Therefore, it is needless to say that the above-described effects can be realized.
[0024]
Further, the fifth problem solving means is the fourth problem solving means, wherein the attaching means comprises a plate for holding the building material and a holding tool for holding the building material. It is composed of a notch provided from the distal end side of the main body toward the base end side, and a holding hole for holding a building material provided at an intermediate portion of the notch, the base end side of which is fixed to the support column main body, A clamping device main body, a notch provided at a distal end side of the clamping device body for inserting a building material, and a wedge mechanism configured to cooperate with the notch provided at a distal end of the clamping device body to clamp the building material, and a base end thereof; The side is fixed to the column body.
[0025]
Needless to say, it is possible to realize the same function and effect as the above-described fourth problem solving means. Since the plate is provided with a notch, when the handrail support is attached to the building material, various members attached to the building material are notched. Since it is possible to pass through the inside, various members do not interfere.
[0026]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention include a first embodiment shown in FIGS. 1 and 2, and a second embodiment shown in FIG. As shown in FIG. 1, the handrail mounting device T according to the first embodiment includes a rod-shaped main body 2 rotatably inserted into a handrail support R in a diametrical direction of the handrail support R; It is composed of a locking portion 1 for locking handrails provided and an operation rod S connected to a base end of the rod-shaped main body 2 by a pin 5. FIG. 1C is a front view of a handrail mounting device T. However, the locking portion 1 has an oval shape when the handrail mounting device T is viewed from the front, and the length in the longitudinal direction is set to be longer than the length in the vertical direction of a hole 16 of the handrail 15 described later. ing. The operation rod S and the rod-shaped main body 2 may be connected to each other by other conventional means other than the connection by the pin 5.
[0027]
The handrail mounting device T is used, for example, as shown in FIG. 4, which is mounted above the column main body 31 of the handrail column R.
[0028]
On the other hand, as shown in FIG. 2, the hole 16 provided in the handrail 15 has a T-shape as a whole when viewed from the front, and is formed by notching both side walls of the central through-hole portion 11a. It is composed of a pair of connected through grooves 11b. The inner diameter L1 and the diagonal dimension of the vertical groove of the through hole 11a are formed longer than the length of the locking portion 1 in the longitudinal direction, and the width L2 of the through groove 11b is longer than the outer diameter of the rod-shaped main body 2. And, it is formed shorter than the length of the locking portion 1 in the longitudinal direction.
[0029]
Thus, when the locking portion 1 is rotated by 90 degrees while the rod-shaped main body 2 is fitted into the through groove 11b, the locking portion 1 matches the through groove 11b and cannot be removed from the hole 16.
[0030]
Further, since the hole 16 of the handrail 15 has the shape described above, even if the longitudinal axis of the locking portion 1 is parallel to the axis of the handrail support R as shown in FIG. The handrail 15 is inclined with respect to the handrail support R, and the engaging portion 1 can be inserted into the hole 16.
[0031]
As shown in FIGS. 1 (A), 1 (B) and 1 (C), the operating rod S is vertically attached to the rod-shaped main body 2 and parallel to the axis of the handrail support R. A hook portion 4 hooked to the handrail support R provided at the tip of the operation portion 3; and in a state where the hook portion 4 is hooked on the handrail support R, the axis of the locking portion 1 in the oblong longitudinal direction is It is set so as to be parallel to the handrail support R. In the present embodiment, the hooking portion 4 has a semicircular shape because the handrail support R is cylindrical, but may be formed in accordance with the shape of the handrail support R.
[0032]
Next, the operation will be described. As shown in FIG. 2, first, the operation rod S is rotated counterclockwise in the figure by 90 degrees with respect to the handrail support R. Then, since the operation rod S is connected to the rod-shaped main body 2, the rod-shaped main body 2 also rotates in the handrail support R by 90 degrees in the counterclockwise direction in the drawing. Further, since the locking portion 1 is provided at the tip of the rod-shaped main body 2, the locking portion 1 also rotates rightward in the figure by 90 degrees to hold the locking portion 1 horizontally. In this state, the locking portion 1 is inserted into the hole 16 while being penetrated, the rod-shaped main body 2 is fitted into the right through groove 11b, and then the operation rod S is rotated clockwise by 90 degrees in the opposite direction to the above. Let it.
[0033]
At this time, the handrail support R and the operation rod S are in a parallel state, and the longitudinal axis of the locking portion 1 is parallel to the handrail support R. In addition, the hook 4 of the operation rod S is hooked on the handrail support R. Therefore, since the hook portion 4 is hooked on the handrail support R, even if vibration or the like is applied to the handrail support or the handrail, the operation rod is prevented from wobbling, so that the fixed state of the handrail can be maintained more stably. It is possible. At this time, the operation stick S may be operated to return the operation stick S to a position parallel to the axis of the handrail support R, that is, the original position, but the operation stick S is not returned to the original position. In both cases, the operation rod S automatically returns to the state parallel to the handrail support R by the weight of the operation rod S itself. In addition, although the above-mentioned effect is lost, it can be used without providing the hook portion 4.
[0034]
Then, since the length of the locking portion 1 in the longitudinal direction is longer than the vertical width L2 of the through groove 11b in the hole 16 of the handrail 15, the locking portion 1 does not fall out of the hole 16 and the handrail 15 is attached to the handrail mounting device. You will not fall out of T. That is, since the handrail 15 can be fixed and the rod-shaped main body 2 is inserted into the hole 16, even if vibration or force is applied to the handrail 15, the handrail 15 falls off the handrail support. There is nothing.
[0035]
Therefore, it is possible to lock the handrail simply by inserting the locking portion into the hole provided in the handrail and rotating the rod-shaped main body, so that the handrail can be easily fixed to the handrail support. Since the weight of the operation rod for rotating the rod-shaped main body is used, the operation is simple.
[0036]
Conversely, when removing the handrail 15, the operation rod S is rotated 90 degrees counterclockwise in the figure from a state parallel to the handrail support R so that the locking rod 1 matches the hole 16 of the handrail 15. What is necessary is just to get out of the handrail 15.
[0037]
Therefore, when removing the handrail, it is only necessary to rotate the operation rod, and it is easy to remove.In addition, even when the rod-shaped main body is rusted or the like and the rotation is resistant, the operation rod is provided. Therefore, it is possible to rotate the rod-shaped main body by applying a relatively small force to the operation rod with the same function as a lever, so that the operability is also improved.
[0038]
Therefore, as described above, the handrail is detachably attached to the handrail support, and the handrail can be arbitrarily removed even in the middle of a framed scaffold once multi-tiered.
[0039]
Further, since the locking portion has the above-mentioned shape, the handrail is prevented from falling off from the handrail support. When the handrail mounting device is used for the handrail support, the handrail mounting device is operated by the locking portion and the operation rod. Is prevented from falling off from the handrail support, so that safety is also improved.
[0040]
Further, since the hole 16 of the handrail 15 has the shape as described above, that is, since the central portion is provided with a through-hole portion 11a whose diagonal dimension is larger than the length of the locking portion 1 in the longitudinal direction, FIG. As shown in FIG. 5, even when the longitudinal axis of the locking portion 1 is parallel to the handrail support R, the handrail 15 can be inclined with respect to the handrail support R and the locking portion 1 can be inserted into the hole 16. Has become. In this manner, the handrail 15 can be attached to the handrail support R by tilting the handrail 15 with respect to the handrail support R, so that one handrail support R is fixed to the building material 30 as shown in FIG. After one end of the handrail 15 is attached as described above, the other end of the handrail 15 can be fixed to another handrail support R, and then the handrail support R can be attached to the building material 30. Since the worker on A can attach the handrail to the handrail support on the floor above the scaffold A, the safety of the worker is improved.
[0041]
The shape of the locking portion and the shape of the hole of the handrail are not limited to those described above. For example, the shape of the locking portion and the shape of the hole of the handrail may be considered unless the handrail is installed obliquely with respect to the handrail support. May be a rectangle, an ellipse, a triangle, or a parallelogram, and in the present embodiment, the rod-shaped main body is connected to substantially the center of the locking portion as shown in FIG. The rod-shaped main body may be connected to the center other than the center.
[0042]
In the second embodiment, as shown in FIG. 4, the handrail mounting device T of the first embodiment provided at two places above the support body 31 and the support body 31 provided below the support body 31 are used. It is a handrail support R provided with attachment means for detachably attaching to the building material 30.
[0043]
As shown in FIG. 4, the mounting means includes a plate P for holding the building material and a holding tool H for holding the building material. As shown in FIGS. The plate body 10 includes a notch 12 provided from the distal end side to the base end side, and a holding hole 16 for holding a building material 30 provided at an intermediate portion of the notch 12, and the base end side is formed in the support body 31. It is fixed. The plate main body 10 is formed of a flat plate, and a pair of opposing rising portions 13 and 14 are provided on the side thereof, and the base end side is fixed to the column main body 31 of the handrail column R. The rising portions 13 and 14 are provided for compensating the strength, but can be used without providing them.
[0044]
On the other hand, as shown in FIG. 8 and FIG. The notch 26 cooperates with the notch 26 to hold the building material 30, and a base end thereof is fixed to the column body 31. The holding body 21 is formed of a flat plate, and a pair of opposed rising portions 24 and 25 are provided on the sides thereof, and the base end is fixed to the support body 31 of the handrail support R. The rising portions 24 and 25 are provided for compensating the strength, but can be used without any particular provision.
[0045]
The wedge mechanism K is composed of a wedge 23 and a substantially U-shaped fixing member 22 for fixing the wedge 23, and a U-shaped opening end side of the fixing member 22 is joined to a lower surface of the holding tool body 21. A wedge 23 is inserted into a slit formed by the clamp body 21 and the fixture 22.
[0046]
Now, as to how to attach the handrail support R to the building material 30, first, the building material 30 is inserted into the holding hole 16 of the plate P from above the building material 30. At this time, since the notch 12 is provided in the plate P, various members (not shown) attached to the building material 30 can pass through the notch 12, so that the various members are obstructed. It will not be.
[0047]
Next, the building material 30 is inserted into the notch 26 of the holding tool H, and the wedge 23 is driven in the direction of the notch 26 while being inserted into the slit formed by the fixing tool 22 and the holding tool body 21 from the side. That is, the notch 26 and the wedge 23 hold the building material 30, and the holding tool H and the building material 30 are fixed. Then, the handrail support R is fixed to the building material 30.
[0048]
Further, when the handrail is attached to the handrail support R, the operation is the same as in the first embodiment, and therefore the description thereof is omitted, but the operation and effect are the same as in the first embodiment.
[0049]
【The invention's effect】
According to the invention of each claim, it is possible to lock the handrail simply by inserting the locking portion into the hole provided in the handrail and rotating the rod-shaped main body, so that the handrail is easily fixed to the handrail support. It is possible to operate the operating rod or to use the own weight of the operating rod to rotate the rod-shaped main body, so that the operation is also simple.
[0050]
Furthermore, when removing the handrail, it is only necessary to rotate the operation rod, so it is easy to remove.In addition, even when the rod-shaped body is rusted and resistance to rotation occurs, the operation rod is provided. Since it is possible to rotate the rod-shaped main body only by applying a relatively small force to the operation rod, the operability is also improved.
[0051]
Therefore, as described above, the handrail is detachably attached to the handrail support, and the handrail can be arbitrarily removed even in the middle of a framed scaffold once multi-tiered.
[0052]
Further, since the locking portion has the above-mentioned shape, the handrail is prevented from falling off from the handrail support. When the handrail mounting device is used for the handrail support, the handrail mounting device is operated by the locking portion and the operation rod. Is prevented from falling off from the handrail support, so that safety is also improved.
[0053]
Further, according to the third aspect of the present invention, the hook of the operation rod is hooked on the handrail support in a state where the handrail is locked, so it is easy to visually check whether the handrail is fixed to the handrail support. Can be easily confirmed by the operator.
[0054]
Further, since the hook portion is hooked on the handrail support, even if vibration is applied to the handrail support or the handrail, the operation rod is prevented from wobbling, so that the fixed state of the handrail can be more stably maintained.
[0055]
According to the fifth aspect of the present invention, since the notch is provided in the plate, when attaching the handrail support to the building material, various members attached to the building material can pass through the notch. The various members do not interfere.
[0056]
Even if the longitudinal axis of the locking part is parallel to the handrail support, if one handrail is inclined with respect to the handrail support and the locking part can be inserted into the hole, one handrail support can be used as a building material. After fixing one end of the handrail as described above and fixing the other end of the handrail to another handrail post, the handrail post can be attached to the building material, and the scaffold erected on the building material Since the worker on the board can attach the handrail to the handrail support on the floor above the scaffolding board, there is also an effect that the safety of the worker is improved.
[Brief description of the drawings]
FIG. 1A is a right side view of a handrail mounting device according to a first embodiment mounted on a handrail support.
(B) It is a top view of the handrail attaching device in a 1st embodiment attached to a handrail prop.
(C) It is a front view of the handrail mounting device in the 1st Embodiment attached to the handrail support.
FIG. 2 is a front view of the handrail attaching device according to the first embodiment in a state where a locking portion of the handrail attaching device is inserted into a hole of the handrail.
FIG. 3 is a front view of the handrail mounting device in a state where the handrail is inclined with respect to the handrail support, and a locking portion of the handrail mounting device according to the first embodiment is inserted into a hole in the handrail.
FIG. 4 is a right side view of a handrail support provided with a handrail mounting device and mounting means.
FIG. 5 is a front view of the framework scaffold showing a state where a handrail is attached.
FIG. 6 is a plan view of a plate.
FIG. 7 is a right side view of the plate.
FIG. 8 is a plan view of the holding device.
FIG. 9 is a right side view of the holding device.
FIG. 10 is a front view of a conventional handrail mounting device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Locking part 2 Bar-shaped main body 3 Operation part 4 Hook part 10 Plate main body 11 Holding hole 12, 26 Notch 15 Handrail 16 Hole 21 Holding tool main body 22 Fixing tool 23 Wedge 30 Building material 31 Post body H Holding tool K Wedge mechanism P plate R Handrail support S Operation stick T Handrail mounting device

Claims

In a handrail mounting device for attaching a handrail in a direction perpendicular to a handrail support that is detachably attached to a building material of a building frame, a rod-shaped body that is rotatably inserted into the handrail support in a diametric direction and provided at a tip of the rod-shaped body. A locking portion for locking the handrail, and an operating rod provided on the base end side of the rod-shaped main body, and the locking portion can be fitted or inserted into a hole provided on the handrail side, and A handrail mounting device having a shape capable of engaging with the hole when the rod-shaped main body is rotated by its own weight or a rotation operation.

The handrail mounting device according to claim 1, wherein the locking portion and the hole are formed in a rectangular, elliptical, triangular, or parallelogram shape.

The operating rod has an operating portion vertically attached to the rod-shaped main body, and a hook portion hooked on a handrail support provided at the tip of the operating portion, and when the hook portion is hooked on the handrail support, The handrail mounting device according to claim 1, wherein the locking portion is engaged with the hole to lock the handrail.

A handrail comprising: a support main body; mounting means provided below the support main body for detachably mounting the support main body to a building material; and a handrail mounting device according to claim 1, 2 or 3, mounted above the support main body. Prop.

The mounting means includes a plate for holding the building material, and a holding tool for holding the building material.The plate includes a plate body, a notch provided from the distal end side to the base end side of the plate body, and an intermediate portion of the notch. And a holding hole for holding the building material provided at the base, the base end side of which is fixed to the support column main body, the holding device is a holding device main body, and a notch for inserting the building material provided at the distal end side of the holding device main body. 5. The handrail support according to claim 4, wherein the wedge mechanism is configured to cooperate with the notch provided at the distal end of the holding tool main body and cooperate with the wedge mechanism to hold the building material, and the base end side thereof is fixed to the support main body. .