JP4639115B2 - Handrail for frame scaffolding of H-shaped building frame - Google Patents

Handrail for frame scaffolding of H-shaped building frame Download PDF

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JP4639115B2
JP4639115B2 JP2005177348A JP2005177348A JP4639115B2 JP 4639115 B2 JP4639115 B2 JP 4639115B2 JP 2005177348 A JP2005177348 A JP 2005177348A JP 2005177348 A JP2005177348 A JP 2005177348A JP 4639115 B2 JP4639115 B2 JP 4639115B2
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frame
handrail
scaffolding
shaped building
building frame
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JP2006348625A (en
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信夫 杉山
大介 政
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Sugiko Co Ltd
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Description

本発明は、土木、建築などの工事現場において、建築物の外壁などに沿って設置する枠組足場に取り付けられる枠組足場用手摺に関し、特にＨ型建枠から成る枠組足場に取り付けられるＨ型建枠の枠組足場用手摺に関する。   The present invention relates to a frame scaffolding handrail attached to a frame scaffolding installed along an outer wall of a building in a construction site such as civil engineering and architecture, and more particularly, an H-shaped building frame attached to a frame scaffolding composed of an H-shaped building frame. It is related with the handrail for frame scaffolding.

従来より枠組足場用の建枠としては鳥居形状をした建枠がよく知られているが、最近では脚柱の中央部付近を横架材で接合して略Ｈ形状としたＨ型建枠も多く採用されており、このＨ型建枠を用いて枠組足場を組み上げる時には、隣接する各建枠の中央高さ位置にある横架材同士に足場板を掛け渡すと共に、この足場板を境として上下位置に筋交いをそれぞれ取り付ける構成としている。したがって、枠組足場の組み上げ、或いは解体の途中であっても、枠組足場の最上階部分の足場板周囲には必ずＨ型建枠の脚柱上部が突出しているため、別途手摺柱などを設置せずとも前記脚柱へ筋交いや手摺材などを取り付ければ迅速かつ容易に手摺を設置することができ、危険を伴う枠組足場の最上階部分での作業の安全性を早期に確保することができる。   Conventionally, a torii-shaped building frame is well known as a building frame for a frame scaffold. Recently, however, an H-shaped building frame that is substantially H-shaped by joining the vicinity of the center of the pedestal with a horizontal member. It is often used, and when building a frame scaffold using this H-shaped building frame, the scaffolding plate is spanned between the horizontal members at the center height position of each adjacent building frame, and this scaffolding plate is used as a boundary. The brace is attached to each of the vertical positions. Therefore, even when the framework scaffold is being assembled or disassembled, the upper part of the pillars of the H-shaped building frame always protrudes around the scaffolding plate on the top floor of the framework scaffold. If a brace or handrail material is attached to the pedestal at least, the handrail can be installed quickly and easily, and the safety of the work on the uppermost floor part of the frame scaffold with danger can be ensured at an early stage.

ところが、Ｈ型建枠を採用して上記のように枠組足場の最上階部分に手摺を設置、或いは取り外すとしても、これらの作業は周囲に手摺のない状態で行われるため、結局その間は作業者に危険な作業を強いることになり、作業安全上問題がないとは言えないものであった。   However, even if a handrail is installed on or removed from the top floor part of the frame scaffolding as described above by adopting an H-shaped building frame, these operations are performed without a handrail in the surroundings. Therefore, it was impossible to say that there was no problem in work safety.

そこで、本出願人らは以前、こうした問題を解消するために、水平材と、該水平材の両端部付近にそれぞれ回動自在に軸支した一対の斜材とから成り、前記水平材の両端部にはＨ型建枠の脚柱上端部に嵌着した連結ジョイントに挿入可能な透孔を穿設した取付片を取着する一方、前記斜材の遊端部には対向側の脚柱側面に突設した筋交いピンに挿入するピン孔を穿設したＨ型建枠の枠組足場用手摺を出願済みである（特許文献１）。そして、この手摺によれば、作業者は安全な下段の足場板上から上段の足場板周囲に手摺を先行させて設置、或いは取り外すことが可能となり、Ｈ型建枠の枠組足場の組み上げ、或いは解体作業時における作業者の安全を確実に確保することができる。
特開２００５−４２４５２号公報 Therefore, in order to solve such problems, the present applicants previously consisted of a horizontal member and a pair of diagonal members pivotally supported in the vicinity of both ends of the horizontal member. A mounting piece having a through hole that can be inserted into a connecting joint that is fitted to the upper end portion of the pedestal of the H-shaped building frame is attached to the part. An application has been filed for a handrail for a frame scaffolding of an H-shaped building frame in which a pin hole to be inserted into a brace pin projecting on a side surface is formed (Patent Document 1). According to this handrail, the operator can install or remove the handrail in advance around the upper scaffold board from the safe lower scaffold board, or assemble the framework scaffold of the H-shaped building frame, or It is possible to ensure the safety of the worker during the dismantling work.
JP 2005-42452 A

しかしながら、特許文献１の手摺では、前記のように、連結ジョイントに対しその上方から取付片の透孔を挿入して手摺を取り付けた後、更にその上位へ建枠を連結して足場を増設した場合、その建枠を残した状態で手摺だけを取り外すことが不可能な構造であるため、例えば、組み上げ後の枠組足場の側方に階段などを新たに設置しようとしても、その部分の手摺を取り外して通路用の空間を確保するといったことができないものであった。   However, in the handrail of patent document 1, after inserting the through hole of the attachment piece from the upper direction with respect to a connection joint and attaching a handrail to the connection joint as mentioned above, the building frame was further connected to the upper position and the scaffold was added. In this case, it is impossible to remove only the handrail while leaving the building frame.For example, even if a new step is installed on the side of the frame scaffold after assembly, It could not be removed to secure a space for the passage.

本発明は上記の点に鑑み、下段の足場板上から上段の足場板周囲に安全に手摺を設置、或いは取り外しが可能な上、上段の足場を増設した後でも下段の足場の手摺だけを脱着することのできるＨ型建枠の枠組足場用手摺を提供することを課題とする。   In view of the above points, the present invention can safely install or remove handrails around the upper scaffolding plate from the lower scaffolding plate, and only attach and detach the lower scaffolding railing even after adding the upper scaffolding. It is an object of the present invention to provide a handrail for a framework scaffolding of an H-shaped building frame that can be performed.

上記の課題を解決するために、本発明のＨ型建枠の枠組足場用手摺にあっては、Ｈ型建枠を上方向並びに水平方向に所望数配置して組み上げる枠組足場において隣接するＨ型建枠の脚柱間に掛け渡す手摺であって、水平材と、該水平材の両端部付近にそれぞれ回動自在に軸支した一対の斜材とから成り、前記水平材の両端部にはＨ型建枠の脚柱上端部に嵌着した連結ジョイントに対し上方から挿入可能なように略リング形状の取付片を取着すると共に、該取付片は前記連結ジョイントに対し側方からも着脱可能なように開閉自在とする一方、前記斜材の遊端部には対向側の脚柱側面に突設した筋交いピンに挿入するピン孔を穿設したことを特徴としている。   In order to solve the above problems, in the handrail for the frame scaffolding of the H-shaped building frame of the present invention, the H-shaped frame adjacent to the frame scaffolding that is assembled by arranging a desired number of H-shaped building frames in the upward and horizontal directions. A handrail hung between the pillars of the building frame, comprising a horizontal member and a pair of diagonal members pivotally supported in the vicinity of both ends of the horizontal member, and at both ends of the horizontal member A substantially ring-shaped mounting piece is attached to the connecting joint fitted to the upper end of the pillar of the H-shaped frame so that it can be inserted from above, and the mounting piece is also detachable from the side of the connecting joint. While being able to open and close as much as possible, the free end portion of the diagonal member is characterized by having a pin hole inserted into a brace pin projecting on the side surface of the opposite pedestal.

本発明に係るＨ型建枠の枠組足場用手摺によれば、Ｈ型建枠を上方向並びに水平方向に所望数配置して組み上げる枠組足場において隣接するＨ型建枠の脚柱間に掛け渡す手摺であって、水平材と、該水平材の両端部付近にそれぞれ回動自在に軸支した一対の斜材とから成り、前記水平材の両端部にはＨ型建枠の脚柱上端部に嵌着した連結ジョイントに対し上方から挿入可能なように略リング形状の取付片を取着すると共に、該取付片は前記連結ジョイントに対し側方からも着脱可能なように開閉自在とする一方、前記斜材の遊端部には対向側の脚柱側面に突設した筋交いピンに挿入するピン孔を穿設したので、作業者は安全な下段の足場板上にいながら手摺を持ち上げて上段の足場板周囲に手摺を設置、或いは取り外すことが可能であり、作業者の安全を十分に確保できると共に、上段に足場を組んだ後でも下段の足場の手摺だけを自在に着脱でき、組み上げた枠組足場に対して階段などを新たに設置するような場合にも、その部分の手摺を取り外して作業通路を確保するといったことができる。   According to the handrail for the frame scaffolding of the H-shaped building frame according to the present invention, the desired number of H-shaped building frames are arranged in the upward direction and the horizontal direction, and are spanned between the pillars of the adjacent H-shaped building frames in the frame scaffolding that is assembled. A handrail comprising a horizontal member and a pair of diagonal members pivotally supported in the vicinity of both ends of the horizontal member, and at both ends of the horizontal member, upper ends of leg posts of an H-shaped building frame. While attaching a substantially ring-shaped mounting piece so that it can be inserted from above with respect to the connecting joint fitted on the mounting joint, the mounting piece can be opened and closed so that it can also be attached to and detached from the side. Since the free end portion of the diagonal member has a pin hole to be inserted into the brace pin projecting on the side of the opposite pedestal, the operator lifts the handrail while staying on the safe lower scaffolding plate. Handrails can be installed or removed around the upper scaffolding board. In addition to securing the safety of the person, even after building the scaffolding on the upper stage, only the handrails on the lower scaffolding can be freely attached and detached, and even when stairs etc. are newly installed on the assembled frame scaffolding, It is possible to secure the work path by removing the handrail at that portion.

本発明に係わるＨ型建枠の枠組足場用手摺によれば、手摺本体を、水平材と、該水平材の両端部付近にそれぞれ回動自在に軸支した一対の斜材とから構成している。前記水平材の両端部には、Ｈ型建枠の脚柱上端部に嵌着した連結ジョイントに対し、その上方から挿入可能なように略リング形状に形成した取付片を取着していると共に、該取付片は前記連結ジョイントに対し、その側方からも着脱操作可能なようにリング形状部分の開放・閉鎖を自在としている。一方、前記斜材の遊端部には、対向側の建枠の脚柱側面に突設した筋交いピンに挿入するピン孔を穿設している。   According to the handrail for the scaffolding of the H-shaped building frame according to the present invention, the handrail main body is composed of a horizontal member and a pair of diagonal members pivotally supported in the vicinity of both ends of the horizontal member. Yes. At both ends of the horizontal member, attachment pieces formed in a substantially ring shape are attached to the connecting joints fitted to the upper ends of the pillars of the H-shaped building frame so that they can be inserted from above. The attachment piece allows the ring-shaped portion to be freely opened and closed with respect to the connecting joint so as to be attachable / detachable from the side. On the other hand, a pin hole to be inserted into a brace pin projecting on the side surface of the pedestal of the opposite building frame is formed in the free end portion of the diagonal member.

そして、Ｈ型建枠から成る枠組足場を上方向へ組み上げていく際などに、枠組足場の最上階部分の周囲に先行して手摺を設置する場合には、作業者は一段下の安全な足場板上にいながら、先ず手摺の一対の斜材を水平材に対してそれぞれ略直交方向に回動させた後、各斜材の遊端部をそれぞれ左右の手に持って持ち上げ、水平材を最上階に突出しているＨ型建枠の脚柱の上位へ位置させる。そして、水平材の両端部の略リング形状の取付片を脚柱上端部に嵌着した連結ジョイント上位に臨ませ、そのまま下方へ下ろして連結ジョイントに挿入させる。   And when setting up the frame scaffolding consisting of H-shaped building frame upwards, when installing handrails around the top floor part of the frame scaffolding, the worker must be a safer platform one step below While on the plate, first rotate the pair of diagonal members of the handrail in a substantially orthogonal direction with respect to the horizontal member, then lift the free end part of each diagonal member with the left and right hands, respectively. It is positioned above the pedestal of the H-shaped building frame that protrudes to the top floor. Then, the substantially ring-shaped attachment pieces at both ends of the horizontal member are placed on the upper part of the connecting joint fitted to the upper end of the pedestal, and are lowered as they are to be inserted into the connecting joint.

ここで、前記連結ジョイントには上位の建枠を連結固定するロックピンがあり、該ロックピンをロック解除状態として鍵形状の係止部を下方向へ回動させて回避させておけば、連結ジョイントへ挿入させた水平材の取付片はロックピンの水平棒体部分の上面に引っ掛かって止まる。次に、水平材をその状態のまま維持させながら斜材を回動させ、その遊端部に穿設したピン孔を対向側の脚柱側面に突設した筋交いピンに挿入させて固定する。そして、上段の隣接するＨ型建枠の横架材間に足場板を架設し、作業者はこの最上階の足場板上へと上がると、最上階の足場板周囲には既に手摺が設置された状態となっていて作業安全上の問題はない。   Here, the connection joint has a lock pin for connecting and fixing the upper building frame. If the lock pin is unlocked and the key-shaped locking portion is rotated downward to avoid the connection, The horizontal material mounting piece inserted into the joint is caught by the upper surface of the horizontal bar portion of the lock pin and stopped. Next, the diagonal member is rotated while the horizontal member is maintained in that state, and the pin hole drilled in the free end portion is inserted into the bracing pin projecting on the side surface of the opposite pedestal and fixed. Then, a scaffolding board is installed between the horizontal members of the adjacent H-shaped building frames in the upper stage, and when the worker goes up on the scaffolding board on the top floor, handrails are already installed around the scaffolding board on the top floor. There is no problem in work safety.

また、枠組足場を解体する場合には、上記手順を逆に行うこととなり、作業者は、枠組足場の最上階部分の周囲に手摺が設置されている状態で、下段の足場板上に降り、最上段に架設していた足場板を取り外す。続いて、各斜材の遊端部のピン孔と筋交いピンとの係止を解除し、各斜材を水平材に対してそれぞれ直交方向へ回動させた後、各斜材の遊端部を左右の手で持って上方へ持ち上げ、水平材両端の取付片を連結ジョイントから抜き出して手摺の取り外しを完了する。   Also, when disassembling the framework scaffold, the above procedure is reversed, and the operator descends onto the lower scaffolding plate with handrails installed around the top floor portion of the framework scaffold, Remove the scaffolding that was erected on the top. Subsequently, the locking between the pin hole and the brace pin of the free end portion of each diagonal member is released, and after rotating each diagonal member in the orthogonal direction with respect to the horizontal member, the free end portion of each diagonal member is Hold it with your left and right hands and lift it upwards. Pull out the mounting pieces at both ends of the horizontal member from the connecting joint to complete the removal of the handrail.

また、組み上げた枠組足場に対して、例えば階段などを新たに設置する場合には、先ず枠組足場の側面部の所望位置にクランプなどで階段上端部を固定する。そして、階段用の通路を確保するためにその部分に取り付けている手摺を取り外す際には、手摺の各斜材のピン孔と筋交いピンとの係止を解除すると共に、水平材両端部の取付片を開放状態とし、手摺を側方へと引き出すようにして枠組足場より取り外し、階段用の通路を確保する。   For example, when newly installing a staircase or the like on the assembled frame scaffold, first, the upper end of the staircase is fixed with a clamp or the like at a desired position on the side surface of the frame scaffold. And when removing the handrail attached to that part in order to secure the passage for the staircase, the pin holes of the diagonal members of the handrail and the bracing pins are released, and the attachment pieces at both ends of the horizontal member Is opened and removed from the frame scaffolding so that the handrail is pulled out to the side, and a passage for stairs is secured.

このように、作業者は安全な下段の足場板上から上段の足場板周囲に手摺を先行させて設置、或いは取り外すことができ、Ｈ型建枠の枠組足場の組み上げ、或いは解体作業時における作業者の安全を確保できる。また、枠組足場を組み終えた後からでも下段側の足場の手摺だけを自在に着脱できるため、枠組足場に対して階段などを新たに設置するような場合にも、その部分の手摺だけを取り外して作業通路を確保するといったことが可能である。   In this way, the operator can install or remove the handrails in advance around the upper scaffolding plate from the lower lower scaffolding plate, and work at the time of assembling the frame scaffolding of the H-shaped building frame or dismantling work Can be secured. In addition, even after the frame scaffolding has been assembled, only the lower-stage scaffolding handrail can be freely attached and detached, so even when newly installing stairs to the framework scaffolding, only that part of the railing is removed. It is possible to secure a work path.

以下、本発明の実施例を図面に基づいて説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１乃至図７は、本発明に係る手摺１を、Ｈ型建枠Ｂと足場板Ｃとを組み上げて成る枠組足場Ａに取り付けた状態を説明する図である。Ｈ型建枠Ｂは、一対の脚柱Ｄを平行に備え、各脚柱Ｄの中央部付近を横架材Ｅで接合して略Ｈ形状に形成したものであり、脚柱Ｄの上端部にはＨ型建枠Ｂ同士を上下に連結するための連結ジョイントＦを嵌着している。そして、一対のＨ型建枠Ｂを対向して立設し、各Ｈ型建枠Ｂの横架材Ｅ同士へ足場板Ｃを架設させて枠組足場Ａを形成している。   FIG. 1 thru | or FIG. 7 is a figure explaining the state which attached the handrail 1 which concerns on this invention to the frame scaffold A formed by assembling the H-shaped building frame B and the scaffolding board C. FIG. The H-shaped building frame B is provided with a pair of pedestal columns D in parallel, and is formed in a substantially H shape by joining the vicinity of the center of each pedestal column D with a horizontal member E. Is fitted with a connecting joint F for connecting the H-shaped building frames B up and down. Then, a pair of H-shaped building frames B are set up facing each other, and a scaffolding plate C is installed between the horizontal members E of each H-shaped building frame B to form a framed scaffolding A.

そして、隣接するＨ型建枠Ｂの各脚柱Ｄ間には安全確保のための手摺１が掛け渡される。手摺１は、所定長さの鋼製の水平材２と、該水平材２の両端部付近にピンにて回動自在に軸支した一対の鋼製の斜材３とから成り、前記水平材２の両端部には上下方向に開口した略リング形状の取付片４を備え、そのリング部分の内径は前記連結ジョイントＦの中央部のカラー体Ｇの外径よりも若干大きく形成し、連結ジョイントＦに対しその上方から挿入可能としている。   And the handrail 1 for safety ensuring is spanned between each pillar D of the adjacent H-shaped building frame B. As shown in FIG. The handrail 1 is composed of a steel horizontal member 2 having a predetermined length, and a pair of steel diagonal members 3 pivotally supported by pins in the vicinity of both ends of the horizontal member 2. 2 is provided with a substantially ring-shaped mounting piece 4 that is open in the vertical direction, and the inner diameter of the ring portion is slightly larger than the outer diameter of the collar body G at the center of the connecting joint F. It is possible to insert F from above.

前記連結ジョイントＦのカラー体Ｇには、上位のＨ型建枠Ｂの脚柱Ｄを連結保持するために、コイルバネを介装して出没自在とした水平棒体Ｈａと鍵形状に折曲した係止部Ｈｂを有する公知のロックピンＨを備えている。そして、水平材２の取付片４を連結ジョイントＦのカラー体Ｇへ挿入させる際には、図３の実線で示すように、ロックピンＨの係止部Ｈｂを下方向へ回動させてロック解除状態としておき、挿入した水平材２の取付片４が水平棒体Ｈａの上面に引っ掛かって係止されるようにしている。   The collar body G of the connecting joint F is bent in a key shape with a horizontal bar Ha which can be moved in and out with a coil spring in order to connect and hold the pedestal D of the upper H-shaped building frame B. A known lock pin H having a locking portion Hb is provided. Then, when the mounting piece 4 of the horizontal member 2 is inserted into the collar body G of the connecting joint F, the locking portion Hb of the lock pin H is rotated downward as shown by the solid line in FIG. In the released state, the mounting piece 4 of the inserted horizontal member 2 is hooked and locked on the upper surface of the horizontal bar Ha.

また、略リング形状の前記取付片４は、共に略半リング形状をした主係止部４ａと、従係止部４ｂとから成り、水平材２に基端部を固着した主係止部４ａの先端部と、従係止部４ｂの一端部とを軸体５にて回動自在に軸支する一方、従係止部４ｂの他端部には水平材２に締結固定する固定ボルト６を備えている。そして、前記固定ボルト６の締緩操作によって取付片４のリング部分を開閉自在とし、例えば図７の二点鎖線にて示すように、手摺２上位に別のＨ型建枠Ｂを連結した状態からでも、そのＨ型建枠Ｂを取り外すことなく手摺１だけを側方へ取り外せるように図っている。   Further, the substantially ring-shaped mounting piece 4 includes a main locking portion 4a and a sub-locking portion 4b, both of which have a substantially semi-ring shape, and a main locking portion 4a whose base end is fixed to the horizontal member 2. The fixing bolt 6 is fastened and fixed to the horizontal member 2 at the other end of the sub-locking portion 4b. It has. Then, the ring portion of the mounting piece 4 can be freely opened and closed by the tightening and loosening operation of the fixing bolt 6. For example, as shown by the two-dot chain line in FIG. Even from the standpoint, only the handrail 1 can be removed laterally without removing the H-shaped building frame B.

また、前記取付片４の主係止部４ａと従係止部４ｂの外縁部には、それぞれ窪み７ａ、７ｂを形成しており、図６及び図７に示すように、手摺２上位に別のＨ型建枠Ｂを連結して連結ジョイントＦのロックピンＨをロックさせた際に、ロックピンＨの側部が前記窪み７ａ、７ｂに収まるように図っている。   In addition, recesses 7a and 7b are formed in the outer edge portions of the main locking portion 4a and the secondary locking portion 4b of the mounting piece 4, respectively. As shown in FIG. 6 and FIG. When the H-shaped building frame B is connected and the lock pin H of the connection joint F is locked, the side portions of the lock pin H are designed to fit in the recesses 7a and 7b.

前記斜材３は、その遊端部にＨ型建枠Ｂの脚柱Ｄ側面に突設している筋交いピンＩに挿入可能なピン孔８を穿設しており、水平材２の両端の取付部４を連結ジョイントＦに挿入させた状態で、各斜材３をそれぞれ対向側の脚柱Ｄへ向けて回動させると各ピン孔８と筋交いピンＩ位置とが合致し、そのままピン孔８を筋交いピンＩに挿入して掛け止めできる構成としている。   The diagonal member 3 is provided with pin holes 8 that can be inserted into bracing pins I projecting from the side surfaces of the pillars D of the H-shaped building frame B at the free end thereof. When each diagonal member 3 is rotated toward the opposite pedestal D in a state where the mounting portion 4 is inserted into the connecting joint F, each pin hole 8 and the brace pin I position coincide with each other, and the pin hole is left as it is. 8 is inserted into the brace pin I and can be hooked.

上記構成とした手摺１を取り付ける手順を図８に基づいて説明する。先ず、枠組足場Ａの上位へ上段のＨ型建枠Ｂを立設させる（１）、（２）。次に、作業者は下段の足場板Ｃ´にいながら、手摺１の斜材３を水平材２に対して略直交方向へ回動し、各斜材３の遊端部をそれぞれ左右の手に持って持ち上げ、水平材２をＨ型建枠Ｂの脚柱Ｄの上位へ位置させ、水平材２の両端に備えた取付片４のリング部分を脚柱Ｄ上端部の連結ジョイントＦ上位に臨ませる（３）。このとき、取付片４は、主係止部４ａと従係止部４ｂとを閉鎖してリング部を形成させた状態で固定ボルト６にて締結固定している。次に、この水平材２をそのまま水平状態を保ちながら下方向へ下ろしていき、水平材２両端の取付片４を連結ジョイントＦに挿入させる（４）。このとき、連結ジョイントＦのロックピンＨは予めロック解除状態としており、挿入した取付片４はロックピンＨに引っ掛かって止まる。   A procedure for attaching the handrail 1 configured as described above will be described with reference to FIG. First, the upper H-shaped building frame B is set up above the frame scaffold A (1) and (2). Next, the operator turns the diagonal member 3 of the handrail 1 in a substantially orthogonal direction with respect to the horizontal member 2 while staying on the lower scaffolding plate C ′, and moves the free end of each diagonal member 3 to the left and right hands, respectively. The horizontal member 2 is positioned above the pedestal D of the H-shaped building frame B, and the ring portions of the mounting pieces 4 provided at both ends of the horizontal member 2 are placed above the connecting joint F at the upper end of the pedestal D. (3) At this time, the attachment piece 4 is fastened and fixed by the fixing bolt 6 in a state where the main locking portion 4a and the secondary locking portion 4b are closed to form a ring portion. Next, the horizontal member 2 is lowered downward while maintaining the horizontal state, and the attachment pieces 4 at both ends of the horizontal member 2 are inserted into the connecting joint F (4). At this time, the lock pin H of the connecting joint F is unlocked in advance, and the inserted attachment piece 4 is caught by the lock pin H and stopped.

続いて、この状態で各斜材３を回動させ、遊端部のピン孔８をそれぞれ対向側の脚柱Ｄ側面の筋交いピンＩに挿入して固定する（５）、（６）。そして、上段の隣接するＨ型建枠Ｂの横架材Ｅ間に足場板Ｃを架設した後（７）、作業者は最上階へ上がる。このとき、最上階の足場板Ｃ周囲には手摺１が先行して設置できていて作業者はあまり恐怖感を憶えるようなことはない。なお、引き続いてこの上段に足場を組み上げていく場合には、上記と同様の作業を繰り返していくことになる。   Subsequently, each diagonal member 3 is rotated in this state, and the pin hole 8 at the free end is inserted and fixed to the brace pin I on the side surface of the opposite leg pillar D (5), (6). Then, after the scaffolding plate C is installed between the horizontal members E of the adjacent H-shaped building frames B in the upper stage (7), the worker goes up to the top floor. At this time, the handrail 1 can be installed in advance around the scaffolding board C on the top floor, so that the operator does not feel much fear. In addition, when the scaffold is subsequently assembled on the upper stage, the same operation as described above is repeated.

このとき、上段のＨ型建枠Ｂの取付けは、図５乃至図７に示すように、カラー体Ｇに挿入した水平材２の取付片４はそのままの状態にしておき、連結ジョイントＦへ新たなＨ型建枠Ｂの脚柱Ｄを嵌入させた後、係止部Ｈｂを係止位置に戻してロック状態とし、上段のＨ型建枠Ｂの脚柱Ｄと共に水平材２の取付片４も挟持する。また、枠組足場Ａを解体していく場合には、上記と逆の手順で作業を行えばよく、安全に作業を行うことができる。   At this time, as shown in FIGS. 5 to 7, the upper H-shaped building frame B is attached to the connecting joint F while the mounting piece 4 of the horizontal member 2 inserted into the collar body G is left as it is. After fitting the pedestal D of the H-shaped building frame B, the locking portion Hb is returned to the locking position to be locked, and the mounting piece 4 of the horizontal member 2 together with the pedestal D of the upper H-shaped building frame B Also pinch. Further, when dismantling the frame scaffold A, the work may be performed in the reverse order to the above, and the work can be performed safely.

このように、作業者は安全な下段の足場板上から上段の足場板周囲に先行して手摺１を設置、或いは取り外すことができ、作業者の安全を確保でき、また、手摺１の水平材２両端の取付片４をＨ型建枠Ｂの脚柱Ｄ上端の連結ジョイントＦへ挿入すると共に、手摺１の斜材３の遊端部をＨ型建枠Ｂの筋交いピンＩに取り付けるので、抜けることもなくて強固に固定できて安全である。   In this way, the operator can install or remove the handrail 1 from the top of the lower lower scaffold plate around the upper scaffold plate, thereby ensuring the safety of the worker, and the horizontal material of the handrail 1 2 Since the attachment pieces 4 at both ends are inserted into the connecting joint F at the upper end of the pedestal D of the H-shaped building frame B, and the free end portion of the diagonal member 3 of the handrail 1 is attached to the bracing pin I of the H-shaped building frame B. It is safe because it can be firmly fixed without coming out.

また、前記手順に従って組み上げた枠組足場Ａに対し、例えば仮設の階段などを新たに設置する場合には、先ず枠組足場Ａの側面部の所望位置にクランプなどで階段上端部を固定する。そして、この階段用の通路を確保するため、階段を設置した部分に取り付けている手摺１を取り外す際には、手摺１の各斜材３のピン孔８と筋交いピンＩとの係止を解除すると共に、水平材２両端部の取付片４の固定ボルト６を緩めて従係止部４ｂを回動させ、連結ジョイントＦに挿入して固定していたリング部分を開放状態とする。そして、手摺１を側方へと引き出すようにして手摺１を枠組足場Ａより取り外し、階段用の通路を確保する。   Further, when a temporary staircase or the like is newly installed on the frame scaffold A assembled according to the above procedure, first, the upper end of the staircase is fixed to a desired position on the side surface of the frame scaffold A with a clamp or the like. In order to secure the passage for the staircase, when the handrail 1 attached to the portion where the staircase is installed is removed, the pin holes 8 of the diagonal members 3 of the handrail 1 and the brace pins I are released from being locked. At the same time, the fixing bolts 6 of the mounting pieces 4 at both ends of the horizontal member 2 are loosened to rotate the slave locking portion 4b, and the ring portions that have been inserted and fixed in the connecting joint F are opened. And the handrail 1 is removed from the frame scaffold A so that the handrail 1 is pulled out to the side, and the passage for stairs is ensured.

このように、枠組足場Ａを組み終えた後からでも下段側の足場の手摺１だけを自在に取り外すことができるため、枠組足場Ａに対して階段や連絡路などを新たに設置するような場合にも、その上段側のＨ型建枠Ｂなどを取り外さずに手摺１だけを取り外して作業通路を確保するといったことができる。なお、上記作業手順と逆の手順を行うことで、一旦取り外した手摺１を連結ジョイントＦに再度固定して設置することもできる。   In this way, only after the frame scaffolding A has been assembled, only the handrail 1 of the lower scaffolding can be removed freely, so that a stairs or a connecting path is newly installed on the frame scaffolding A. In addition, it is possible to remove only the handrail 1 without securing the H-shaped building frame B on the upper side, and to secure a work path. In addition, the handrail 1 once removed can be fixed to the connection joint F again and installed by performing a procedure reverse to the above-described operation procedure.

本発明に係る枠組足場用手摺をＨ型建枠の枠組足場に取り付けた状態を示す正面図である。It is a front view which shows the state which attached the handrail for frame scaffolds which concerns on this invention to the frame scaffold of an H-shaped building frame. 図１の要部拡大図である。It is a principal part enlarged view of FIG. 図２の一部を省略したＸ−Ｘ矢視図である。FIG. 3 is an XX arrow view in which a part of FIG. 2 is omitted. 図２の一部を省略した平面図である。It is the top view which abbreviate | omitted a part of FIG. 図１の別の要部拡大図である。It is another principal part enlarged view of FIG. 図５の一部を省略したＹ−Ｙ矢視図である。It is the YY arrow line view which abbreviate | omitted a part of FIG. 図５の一部を省略した平面図である。It is the top view which abbreviate | omitted a part of FIG. 本発明に係る枠組足場用手摺をＨ型建枠の枠組足場に取り付ける作業手順を示す説明図である。It is explanatory drawing which shows the operation | work procedure which attaches the handrail for frame scaffolds which concerns on this invention to the frame scaffold of an H-shaped building frame.

符号の説明Explanation of symbols

１…手摺 ２…水平材
３…斜材 ４…取付片
６…固定ボルト ８…ピン孔
Ａ…枠組足場 Ｂ…Ｈ型建枠
Ｃ…足場板 Ｄ…脚柱
Ｅ…横架材 Ｆ…連結ジョイント
Ｇ…カラー体 Ｈ…ロックピン
Ｉ…筋交いピン DESCRIPTION OF SYMBOLS 1 ... Handrail 2 ... Horizontal material 3 ... Diagonal material 4 ... Mounting piece 6 ... Fixing bolt 8 ... Pin hole A ... Frame assembly scaffolding B ... H-type building frame C ... Scaffolding plate D ... Leg pillar E ... Horizontal member F ... Connection joint G ... Color body H ... Lock pin I ... Bracing pin

Claims (1)

Ｈ型建枠を上方向並びに水平方向に所望数配置して組み上げる枠組足場において隣接するＨ型建枠の脚柱間に掛け渡す手摺であって、水平材と、該水平材の両端部付近にそれぞれ回動自在に軸支した一対の斜材とから成り、前記水平材の両端部にはＨ型建枠の脚柱上端部に嵌着した連結ジョイントに対し上方から挿入可能なように略リング形状の取付片を取着すると共に、該取付片は前記連結ジョイントに対し側方からも着脱可能なように開閉自在とする一方、前記斜材の遊端部には対向側の脚柱側面に突設した筋交いピンに挿入するピン孔を穿設したことを特徴とするＨ型建枠の枠組足場用手摺。   A handrail that spans between the pillars of adjacent H-shaped building frames in a frame scaffolding that is assembled by arranging a desired number of H-shaped building frames in the upward and horizontal directions. It consists of a pair of diagonal members that are pivotally supported, respectively, and a ring that can be inserted from above into a connecting joint fitted to the upper end of the pillar of the H-shaped building frame at both ends of the horizontal member. While attaching the mounting piece in the shape, the mounting piece can be opened and closed so as to be detachable from the side with respect to the connecting joint, while the free end portion of the diagonal member is attached to the side of the opposite pedestal. A handrail for a frame scaffolding of an H-shaped building frame, wherein a pin hole to be inserted into a projecting bracing pin is formed.
JP2005177348A 2005-06-17 2005-06-17 Handrail for frame scaffolding of H-shaped building frame Active JP4639115B2 (en)

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Publication number Priority date Publication date Assignee Title
JP2006112152A (en) * 2004-10-15 2006-04-27 Alinco Inc Safety balustrade

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006112152A (en) * 2004-10-15 2006-04-27 Alinco Inc Safety balustrade

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