JP3872481B2 - Building frame and manufacturing method of building frame - Google Patents

Description

この発明は、例えば、土木、建築、外壁塗装等の工事現場において、橋梁の脚柱の周りや建築物の外壁に沿って作業足場を組立てる際に使用する枠組足場を構成する建枠及び建枠の製造方法に関する。   The present invention relates to a building frame and a building frame constituting a frame scaffold used when assembling a work scaffold around a bridge pillar or along the outer wall of a building, for example, in a construction site such as civil engineering, architecture, exterior wall painting, etc. It relates to the manufacturing method.

従来から、土木、建築の工事現場では、鳥居型の建枠を使用した枠組足場が広く使用されている。   Conventionally, a framework scaffold using a torii type building frame has been widely used in civil engineering and construction sites.

図８に、従来の枠組足場の代表例として縦一列だけを斜視図で示す。   FIG. 8 is a perspective view showing only one vertical row as a typical example of a conventional frame scaffold.

枠組足場を構築する建枠２０は、２本の脚柱２１を有し、脚柱２１の上端を腕木２２で連結している。腕木２２と脚柱２１の間は、連結補強材２３で補強している。建枠２０は左右上下に増設されることで、必要な大きさの作業足場が完成する。   The building frame 20 for constructing the frame scaffold has two pedestals 21, and the upper ends of the pedestals 21 are connected by the arms 22. A space between the arm 22 and the pedestal 21 is reinforced with a connection reinforcing material 23. The building frame 20 is added to the left, right, up, and down, so that a working scaffold of a necessary size is completed.

隣り合った左右の建枠２０，２０相互間には筋交い２４を斜めに渡すと共に、腕木２２に足場板２６が水平に架設される。建枠２０の脚柱２１は管材が使われており、下段の建枠２０ａの脚柱２１ａの上端開口部と上段の建枠２０ｂの脚柱２１ｂの下端開口部とはジョイントピン２７によって連結されることで、縦方向に段数を重ねることかできるようになっている。腕木２２の高さは一定であるから、各段毎に水平に連続した足場板２６による作業足場が組立られる。   Between the adjacent left and right building frames 20, 20, a brace 24 is passed diagonally, and a scaffolding plate 26 is installed horizontally on the arm 22. The leg column 21 of the building frame 20 is made of pipe material, and the upper end opening of the leg column 21a of the lower building frame 20a and the lower end opening of the leg column 21b of the upper building frame 20b are connected by a joint pin 27. By doing so, it is possible to overlap the number of stages in the vertical direction. Since the height of the brace 22 is constant, a working scaffold by the scaffold plate 26 that is horizontally continuous is assembled for each stage.

枠組足場を組み立てるときは、下段の枠組足場を作り、下段に上段の足場を重ねていき、解体のときは逆に、上段から順次下段に向かって解体していく。枠組足場の組み立て、解体に際しては、最上段の足場板２６の上面に立って組立、解体作業を行う。   When assembling the frame scaffold, the lower frame scaffold is created, and the upper scaffold is stacked on the lower stage. When disassembling, the upper stage is disassembled sequentially from the upper stage toward the lower stage. When assembling and disassembling the frame scaffold, the assembly and disassembly work is performed on the upper surface of the uppermost scaffold plate 26.

しかしながら、組み立て時には最上段の足場板２６の周囲には、建枠２０の脚柱２１や手摺りがないので、作業者には転落の危険があるという問題点があった。   However, since there is no pedestal 21 or handrail of the building frame 20 around the uppermost scaffold plate 26 at the time of assembly, there is a problem that there is a risk of falling for the operator.

図９に、従来の枠組足場の別の例を斜視図で示す。   FIG. 9 is a perspective view showing another example of a conventional frame scaffold.

図８で示した枠組足場の危険を解消する枠組足場として、いわゆるＨ型枠組足場が提案されている（特許文献１）。   A so-called H-shaped frame scaffold has been proposed as a frame scaffold to eliminate the danger of the frame scaffold shown in FIG. 8 (Patent Document 1).

このＨ型枠組足場にあっては、建枠２０には、脚柱２１の中間の高さに腕木２２を設けている。したがって、中間の高さの腕木２２に足場板２６を設けている。建枠２０には、腕木２２の架設箇所の上側に手摺り２８を設け、腕木２２の架設箇所の下側に筋交い２４を設けている。そこで、作業者は、最上段の足場板２６の上で組立、解体作業をする場合には、作業者の周りに最上段を構成している建枠２０ｂの脚柱２１ｂの上半分が存在するため、その部分を利用して親綱を張り巡らせる等の手段を採用することで、作業者は安全に枠組足場の組立又は解体ができる。また、下段の足場板２６上で、上段の建枠２０ｂの脚柱２１ｂの上半分の部分に手摺り２８を取り付けるようにすれば、上段の足場板２６で作業するときには、既に足場板２６の周りには手摺り２８が存在することになり、作業者は安全に枠組足場を組立又は解体ができる。この方法は、最上段の足場板２６での作業に先行して手摺り２８が構築されることから、先行型の手摺り構築法と呼ばれ、そのための手摺りを先行手摺りと呼んでいる。   In this H-framework scaffolding, the building frame 20 is provided with arms 22 at a height intermediate between the pillars 21. Therefore, the scaffolding plate 26 is provided on the arm 22 having an intermediate height. In the building frame 20, a handrail 28 is provided on the upper side of the place where the arm 22 is installed, and a brace 24 is provided on the lower side of the place where the arm 22 is installed. Therefore, when the worker performs assembly and disassembly work on the uppermost scaffold plate 26, the upper half of the pillar 21b of the building frame 20b constituting the uppermost stage exists around the worker. Therefore, the operator can assemble or disassemble the frame scaffold safely by adopting means such as using the portion to stretch the master rope. Further, if the handrail 28 is attached to the upper half of the pedestal 21b of the upper building frame 20b on the lower scaffolding plate 26, when working with the upper scaffolding plate 26, the scaffolding plate 26 is already attached. There will be a handrail 28 around, and the worker can safely assemble or disassemble the frame scaffold. This method is called a prior-type handrail construction method because the handrail 28 is constructed prior to the work on the uppermost scaffold plate 26, and the handrail for that is called a prior handrail. .

また、従来の枠組足場の形状を変えずに、先行型の手摺り構築法を採用したものも提案されている（特許文献２）。これは、建枠２０の脚柱２１の上端部に、枠体をした手摺り枠を取り付けるための手摺り枠用ジョイントを追加的に設ける。手摺り枠用ジョイントは、手摺り枠が装着自在になるように工夫がしてある。上段の建枠２０を構築する前に、手摺り枠用ジョイントを利用して、手摺り枠を利用して手摺り枠を建枠２０の脚柱２１に取り付けておけば、下段の建枠２０を設けるときには、上段の手摺り枠が確保されていくことになる。
実公平１−１８７５３号公報 特開平７−５４４８０号公報 Moreover, what employ | adopted the prior type handrail construction method is also proposed, without changing the shape of the conventional frame scaffold (patent document 2). This additionally provides a handrail frame joint for attaching a handrail frame in the form of a frame to the upper end portion of the pedestal 21 of the building frame 20. The handrail frame joint is devised so that the handrail frame can be mounted freely. If the handrail frame is attached to the pedestal 21 of the building frame 20 using the handrail frame before the upper building frame 20 is constructed, the lower building frame 20 is used. Therefore, the upper handrail frame is secured.
Japanese Utility Model Publication No. 1-18753 JP-A-7-54480

以上のように、改良を加えていない従来の枠組足場用建枠は、作業者の安全対策が十分ではなく、作業性にも問題点があった。   As described above, the conventional framework for building scaffolds that has not been improved has insufficient safety measures for workers and has a problem in workability.

一方、枠組足場は、組立と解体を繰り返しながら使用する仮設材であり、耐久性を考慮して製作されていることもあり、大量の枠組足場が現在も実用に供されている。しかし、安全性や作業性等の面から次々と新しい製品が市場に供給されていて、従来型との買い換えの必要性に迫られている。しかし、現在の土木、建築、仮設業界等を取り巻く環境は厳しく、好景気の時期に大量に購入した建枠、足場板、筋交い、他を無駄な在庫として抱え、広い保管場所を占有しているが、そう簡単に新規な建枠、他の買い換えができないという経済事情を抱えている。したがって、従来の枠組足場用の建枠を廃棄してＨ型建枠に切り替えることは、経済的負担が多すぎて、企業の経営を圧迫するという大きな問題点がある。   On the other hand, the frame scaffold is a temporary material that is used while being repeatedly assembled and disassembled, and is sometimes manufactured in consideration of durability, and a large number of frame scaffolds are still in practical use. However, new products are being supplied to the market one after another in terms of safety, workability, etc., and there is an urgent need for replacement with the conventional type. However, the environment surrounding the current civil engineering, construction, temporary industry, etc. is harsh, and there are building frames, scaffolding boards, braces, etc. that were purchased in large quantities during a booming economy as wasteful inventory and occupy a large storage space. So, it has the economic situation that it can't be easily replaced with a new frame. Therefore, discarding a conventional frame for a scaffold and replacing it with an H-shaped frame has a great problem that it imposes too much economic burden and puts pressure on corporate management.

また、近年、建物の密集地での建築、外壁塗装等の工事現場では、狭いスペースで使用できる幅の狭い枠組足場用の建枠の必要性が高まっている。そして、交差筋交いや足場板等は従来の機材が使用できるが、幅の狭い建枠は新たに購入しなければならないという問題点を抱えている。   Also, in recent years, there is an increasing need for a building frame for a narrow frame scaffold that can be used in a narrow space at a construction site such as construction in a densely packed building or exterior wall painting. And although conventional equipment can be used for crossing bars, scaffolding boards, etc., there is a problem that a narrow building frame must be newly purchased.

そして、従来の枠組足場に手摺り枠用ジョイントを設ける足場は、新たな形態の枠組足場を採用するものではなく、従来の枠組足場に簡単な造作を加えるだけで安全対策をしようとするものである。しかし、古い大量の枠組足場に手摺り枠用ジョイントを追加的に設けることは、手間が掛かり新たなコストの発生を招く。しかも、手摺り枠は、予めコの字型に形成した大型の金属製枠材を準備しておかねばならず、その搬送や、現場での組立又は解体に関する取り扱いが不便である。   And, the scaffold that provides the handrail frame joint on the conventional framework scaffold does not adopt a new form of the framework scaffold, but is intended to take safety measures by simply adding a simple structure to the conventional framework scaffold. is there. However, additionally providing a handrail frame joint on an old large number of frame scaffolds is time-consuming and causes new costs. Moreover, the handrail frame must be prepared in advance with a large metal frame material formed in a U-shape, which is inconvenient in handling and handling on site assembly or disassembly.

そこで、この発明は、製造が容易であり、僅かな製造コストであるにも拘わらず、現場への搬送、現場での組立又は解体が容易な枠組足場用の建枠及び建枠の製造方法を提供することを課題としている。   Therefore, the present invention provides a building frame for a frame scaffold and a method for manufacturing the building frame, which are easy to manufacture and have a small manufacturing cost, and are easily transported to the site, assembled or disassembled on the site. The issue is to provide.

さらに、企業に取っての経済的な負担が少なくて済み、企業の経営を圧迫することのない方法による、安全対策を考慮した枠組足場用の建枠及び建枠の製造方法を提供することを課題としている。   Furthermore, to provide a framework for building scaffolds and a method for manufacturing the framework in consideration of safety measures by a method that requires less economic burden on the enterprise and does not impose management pressure on the enterprise. It is an issue.

そこで、かかる課題を解決するため、請求項１に記載の発明は、同じ長さの２本の支柱の両端部を揃えて平行に配置された前記２本の支柱の上端部が水平部材により結合され、前記２本の支柱と前記水平部材により形成された２つの内角部が連結補強材で結合された建枠において、前記左右の枠体のうちの一方の枠体は、既製品の建枠の水平部材の中央で切断したものであり、他方の枠体の水平部材は前記一方の枠体の水平部材より短い長さであることを特徴とする。   Therefore, in order to solve such a problem, the invention according to claim 1 is characterized in that the upper ends of the two struts arranged in parallel with both ends of the two struts having the same length aligned are coupled by a horizontal member. In the building frame in which two inner corners formed by the two support columns and the horizontal member are coupled with a connecting reinforcing material, one of the left and right frames is a ready-made building frame. The horizontal member of the other frame is shorter in length than the horizontal member of the one frame.

請求項２に記載の発明は、請求項１に記載の構成に加え、前記一方の前記支柱に設けた２個のブレース取付用係止部の間に内側に突設された少なくとも１つの手摺り棒係止部を備えていることを特徴とする。   According to a second aspect of the present invention, in addition to the structure of the first aspect, at least one handrail projecting inwardly between two brace mounting locking portions provided on the one of the support columns. It is characterized by having a rod locking part.

請求項３に記載の発明は、同じ長さの２本の支柱の一方の支柱の上端部と、他方の支柱の中間部とが水平部材により結合され、前記２本の支柱と前記水平部材により形成された２つの内角部が連結補強材で結合された建枠において、前記左右の枠体のうちの一方の枠体は、既製品の建枠の水平部材の中央で切断したものであり、他方の枠体の水平部材は前記一方の枠体の水平部材より短い長さであることを特徴とする。   According to a third aspect of the present invention, the upper end of one strut of two struts of the same length and the middle portion of the other strut are coupled by a horizontal member, and the two struts and the horizontal member In the building frame in which the formed two inner corners are joined by the connecting reinforcing material, one of the left and right frames is cut at the center of the horizontal member of the ready-made building frame, The horizontal member of the other frame is shorter than the horizontal member of the one frame.

請求項４に記載の発明は、請求項３に記載の構成に加え、前記水平部材より上方にある前記他方の支柱の中間部の内側に突設された少なくとも１つの手摺り棒係止部を備えていることを特徴とする。   According to a fourth aspect of the present invention, in addition to the configuration according to the third aspect, at least one handrail bar locking portion projecting inside the intermediate portion of the other column above the horizontal member is provided. It is characterized by having.

請求項５に記載の発明は、請求項３又は４に記載の構成に加え、前記他方の支柱の前記水平部材より上方の部位は、前記水平部材の直上の位置で前記他方の支柱の前記水平部材から下方の部位と着脱自在であることを特徴とする。   According to a fifth aspect of the present invention, in addition to the configuration according to the third or fourth aspect, the portion above the horizontal member of the other strut is positioned directly above the horizontal member at the horizontal position of the other strut. It is characterized in that it can be freely attached to and detached from the lower part from the member.

請求項６に記載の発明は、請求項１乃至５のいずれか一つに記載の構成に加え、少なくとも一方の前記連結補強材は、前記手摺り棒係止部を備えている方の前記支柱と前記水平部材の内角部で結合された斜材であることを特徴とする。   According to a sixth aspect of the present invention, in addition to the structure according to any one of the first to fifth aspects, at least one of the connection reinforcing members includes the handrail bar locking portion. And an oblique member joined at an inner corner of the horizontal member.

請求項７に記載の建枠の製造方法の発明は、左右の枠体を結合して前記請求項１乃至６のいずれか一つに記載の建枠を組み立てる建枠の製造方法において、既製品の建枠の水平部材の中央で切断して２つの第１枠体を製造する第１工程と、前記第１枠体の水平部材よりも短い長さの水平部材と支柱との内角部に連結補強材を有する第２枠体を製作する第２工程と、前記第１枠体と前記第２枠体とをそれぞれの水平部材同士を突き合わせて接合する第３工程と、を有することを特徴とする。   The invention of the manufacturing method of a building frame according to claim 7 is the ready-made product in the manufacturing method of the building frame for assembling the building frame according to any one of claims 1 to 6 by combining the left and right frame bodies. The first step of manufacturing two first frames by cutting at the center of the horizontal member of the building frame, and connecting to the inner corners of the horizontal member and the column having a shorter length than the horizontal member of the first frame A second step of manufacturing a second frame body having a reinforcing material, and a third step of abutting and joining the first frame body and the second frame body with each horizontal member. To do.

以上説明したように、請求項１に記載の発明によれば、使用されずに保管されている既製品の旧建枠を切断したものを、２つの新規な建枠を製造するために活用することができるので、安価な再生品を施工業者等が購入することができることになり、新品の購入に比べて経済的な負担が大幅に軽減される。また、施工業者等が保有していた旧建枠を再生品に切り替えることで、使わない旧建枠がなくなり使用する新たな建枠が得られることとなり、さらに、旧建枠の保管場所を新たなに購入した再生品の建枠に当てることが可能となるから、再生品の建枠のための新たな保管場所を確保する必要もないので、仮設材の運用効率が極めて高くなる。また、建枠の全体的な外形が矩形形状を呈し外形から突出する部材がないので、搬送時の取り扱い及び保管が容易である。   As described above, according to the invention described in claim 1, the cut off old building frame of an off-the-shelf product stored without being used is utilized for manufacturing two new building frames. Therefore, a contractor or the like can purchase an inexpensive recycled product, and the economic burden is greatly reduced as compared with the purchase of a new product. In addition, by switching old construction frames owned by construction contractors to recycled products, old construction frames that are not used will be eliminated, and new construction frames will be obtained that will be used. Since it is possible to hit the building frame of the purchased recycled product, there is no need to secure a new storage place for the building frame of the recycled product, so that the operational efficiency of the temporary material becomes extremely high. Further, since the entire outer shape of the building frame is rectangular and there is no member protruding from the outer shape, handling and storage during transportation are easy.

請求項２に記載の発明によれば、請求項１の効果に加えて、建枠の一方の支柱に手摺り棒係止部を備えているので、手摺り棒を、特別な工具等を用いることなく容易に着脱することができ、足場の組立或いは解体が容易であり迅速にに行なうことができるから作業性が向上すると共に、足場の構築後に手摺り棒を上層階に転用する時などの着脱も容易に行うことができる。   According to the second aspect of the present invention, in addition to the effect of the first aspect, since the handrail bar locking portion is provided on one column of the building frame, a special tool or the like is used for the handrail bar. It is easy to detach without attaching, and it is easy to assemble or disassemble the scaffold, and it can be done quickly, so that workability is improved, and when the handrail bar is transferred to the upper floor after the scaffold is constructed, etc. It can be easily attached and detached.

請求項３に記載の発明によれば、使用されずに保管されている既製品の旧建枠を切断したものを、２つの新規な建枠を製造するために活用することができるので、安価な再生品を施工業者等が購入することができることになり、新品の購入に比べて経済的な負担が大幅に軽減される。また、施工業者等が保有していた旧建枠を再生品に切り替えることで、使わない旧建枠がなくなり使用する新たな建枠が得られることとなり、さらに、旧建枠の保管場所を新たなに購入した再生品の建枠に当てることが可能となるから、再生品の建枠のための新たな保管場所を確保する必要もないので、仮設材の運用効率が極めて高くなる。また、水平部材よりも上方にある支柱に手摺り棒係止部が備えてあるので、下層階から手摺り棒を上方にある支柱に手摺り棒係止部に取り付けることができるため、先行手摺りを備えた足場を容易に構築することができる。また、上方にある支柱が建枠に一体に形成されているので、支柱と手摺り棒を含む先行手摺り部が建枠から外れる心配がないため、作業者も安心して作業ができる。   According to invention of Claim 3, since what cut | disconnected the old building frame of the ready-made product stored without being used can be utilized in order to manufacture two new building frames, it is cheap. This makes it possible for a contractor or the like to purchase a new recycled product, which greatly reduces the economic burden compared to purchasing a new product. In addition, by switching old construction frames owned by construction contractors to recycled products, old construction frames that are not used will be eliminated, and new construction frames will be obtained that will be used. Since it is possible to hit the building frame of the purchased recycled product, there is no need to secure a new storage place for the building frame of the recycled product, so that the operational efficiency of the temporary material becomes extremely high. In addition, since the handrail bar locking part is provided on the support column above the horizontal member, the handrail bar can be attached to the handrail bar locking part on the support column above from the lower floor. A scaffold with a slide can be easily constructed. In addition, since the upper support column is formed integrally with the building frame, there is no fear that the preceding handrail part including the support column and the handrail bar is detached from the building frame, so that the worker can work with peace of mind.

請求項４に記載の発明によれば、請求項３の効果に加えて、建枠の一方の支柱に手摺り棒係止部を備えているので、手摺り棒を、特別な工具等を用いることなく容易に着脱することができ、足場の組立或いは解体が容易であり迅速にに行なうことができるから作業性が向上すると共に、足場の構築後に手摺り棒を上層階に転用する時などの着脱も容易に行うことができる。   According to the fourth aspect of the invention, in addition to the effect of the third aspect, since the handrail bar locking portion is provided on one column of the building frame, a special tool or the like is used for the handrail bar. It is easy to detach without attaching, and the assembly or disassembly of the scaffold is easy and can be performed quickly, so that workability is improved and the handrail bar is transferred to the upper floor after the scaffold is constructed, etc. It can be easily attached and detached.

請求項５に記載の発明によれば、請求項３又は４に記載の効果に加え、水平部材より上方の部位は水平部材の直上で前記他方の支柱の前記水平部材から下方の部位と着脱自在であるので、下層階において水平部材より上方の部位の手摺り棒係止部に手摺り棒をセットして上層階の先行手摺りを構築することができるから、作業者の安全がより確保される。また、水平部材より上方の部位を構成する補助支柱を取り外すと建枠が軽量でコンパクトになるので、搬送時の取り扱いや保管がより容易になる。   According to the fifth aspect of the invention, in addition to the effect of the third or fourth aspect, the part above the horizontal member is detachable from the part below the horizontal member of the other strut directly above the horizontal member. Therefore, since the handrail bar can be set on the handrail bar latching portion of the lower floor above the horizontal member to construct the preceding handrail on the upper floor, the safety of the worker is further ensured. The Moreover, since the building frame becomes light and compact when the auxiliary struts constituting the part above the horizontal member are removed, handling and storage during transportation becomes easier.

請求項６に記載の発明によれば、請求項１乃至５のいずれか一つに記載の効果に加え、少なくとも一方の前記連結補強材は、前記手摺り棒係止部を備えている方の前記支柱と前記水平部材の内角部で結合された斜材であるので、構造物に沿って横方向に接続された幅の狭い建枠を使った足場においても、連結補強部材が邪魔にならない程度の通行空間が確保できるので、十分な作業性を確保することができる。   According to the invention described in claim 6, in addition to the effect described in any one of claims 1 to 5, at least one of the connection reinforcing members is provided with the handrail bar locking portion. Since the diagonal members are joined at the inner corners of the support column and the horizontal member, even in a scaffold using a narrow building frame that is connected laterally along the structure, the connection reinforcing member does not get in the way. Therefore, sufficient workability can be ensured.

請求項７に記載の発明によれば、既製品の建枠の水平部材の中央で切断して２つの第１枠体を製造する第１工程と、前記第１枠体の水平部材よりも短い長さの水平部材と支柱との内角部に連結補強材を有する第２枠体を製作する第２工程と、前記第１枠体と前記第２枠体とをそれぞれの水平部材同士を突き合わせて接合する第３工程により、再生品の建枠が完成するので、安価な再生品を施工業者等が購入することができることになり、新品の購入に比べて経済的な負担が大幅に軽減される。また、現在需要の多い安全対策を考慮した幅の狭い建枠を、安価にかつ容易に製造することができる。さらに、施工業者等が保有していた旧建枠を再生品に切り替えることで、使わない旧建枠がなくなり使用する新たな建枠が得られることとなり、さらに、旧建枠の保管場所を新たなに購入した再生品の建枠に当てることが可能となるから、再生品の建枠のための新たな保管場所を確保する必要もないので、仮設材の運用効率が極めて高くなる。   According to invention of Claim 7, it cut | disconnects in the center of the horizontal member of the ready-made building frame, the 1st process which manufactures two 1st frame bodies, and is shorter than the horizontal member of the said 1st frame body A second step of manufacturing a second frame having a connecting reinforcing member at an inner corner between the horizontal member and the column of the length, and the horizontal members of the first frame and the second frame are brought into contact with each other. The third step of joining completes the building frame of the remanufactured product, so that a contractor or the like can purchase an inexpensive remanufactured product, and the economic burden is greatly reduced compared to purchasing a new product. . In addition, a narrow building frame in consideration of safety measures that are currently in great demand can be manufactured inexpensively and easily. Furthermore, by switching old construction frames owned by construction contractors to remanufactured products, there will be no new old construction frames that will be used, and new construction frames will be obtained that will be used. Since it is possible to hit the building frame of the purchased recycled product, there is no need to secure a new storage place for the building frame of the recycled product, so that the operational efficiency of the temporary material becomes extremely high.

[発明の実施の形態１]
以下、この発明の実施の形態１に係る建枠について図１乃至５により説明する。 [Embodiment 1 of the Invention]
A building frame according to Embodiment 1 of the present invention will be described below with reference to FIGS.

図１はこの発明の実施の形態１に係る建枠を示す正面図、図２は手摺り棒係止部に係止された手摺り棒の要部拡大図、図３は手摺り棒の中間部を省略した正面図、図４は手摺り棒の一端を手摺り棒係止部に取り付ける状態を示した説明図である。   1 is a front view showing a building frame according to Embodiment 1 of the present invention, FIG. 2 is an enlarged view of a main part of a handrail bar locked to a handrail bar locking part, and FIG. 3 is an intermediate part of the handrail bar. FIG. 4 is an explanatory view showing a state in which one end of the handrail bar is attached to the handrail bar locking portion.

建枠１は、図１に示したように、同じ長さの２本の支柱２ａ，２ｂを間隔をあけて、それぞれの両端部を揃えて平行に配置して、２本の支柱２ａ，２ｂの上端部を水平部材３により結合され、全体が門型を呈している。２本の支柱２ａ，２ｂと水平部材３により形成される２つの内角部は連結補強材４ａ，４ｂで強固に結合されている。   As shown in FIG. 1, the building frame 1 has two struts 2 a and 2 b in which two struts 2 a and 2 b having the same length are spaced apart and arranged in parallel with their both ends aligned. The upper ends of the two are joined by a horizontal member 3, and the whole has a gate shape. The two inner corners formed by the two support columns 2a and 2b and the horizontal member 3 are firmly connected by connecting reinforcing members 4a and 4b.

図５は、この発明の実施の形態１に係る建枠の製造工程の一部を示した説明図である。   FIG. 5 is an explanatory view showing a part of the manufacturing process of the building frame according to Embodiment 1 of the present invention.

接合前の左側の枠体（第１枠体）５と右側の枠体（第２枠体）６を実線で示し、完成品の建枠を二点鎖線で示している。   The left frame body (first frame body) 5 and the right frame body (second frame body) 6 before joining are indicated by solid lines, and the finished building frame is indicated by a two-dot chain line.

まず、既製品の建枠（図示せず）の水平部材３ａの中央で切断して２つの左側の枠体（第１枠体）５を製造する第１工程と、左側の枠体（第１枠体）５の水平部材３ａよりも短い長さの水平部材３ｂと支柱２ｂとの内角部に連結補強材４ｂを有する右側の枠体（第２枠体）６を製作する第２工程と、左側の枠体（第１枠体）と右側の枠体（第２枠体）６とをそれぞれの水平部材３ａ，３ｂ同士を突き合わせて接合する第３工程とによって建枠が製造されている。   First, a first step of manufacturing two left frame bodies (first frame bodies) 5 by cutting at the center of a horizontal member 3a of a ready-made building frame (not shown), and a left frame body (first A second step of producing a right frame (second frame) 6 having a connecting reinforcing member 4b at an inner corner between the horizontal member 3b and the column 2b having a shorter length than the horizontal member 3a of the frame 5); A building frame is manufactured by a third process in which the left frame member (first frame member) and the right frame member (second frame member) 6 are joined to each other by abutting the horizontal members 3a and 3b.

建枠１は、左側の枠体５と右側の枠体６とから構成されており、左右の枠体５，６はそれぞれの水平部材３ａ，３ｂの中間部で接合して一体化されている。左側の枠体５の支柱２ａの上端部に取り付けた水平部材３ａと右側の枠体６の支柱２ｂの水平部材３ｂとを、例えば、右側の枠体６の水平部材３ｂに設けた連結部材７に左側の枠体５の水平部材３ｂの開口端部８を差し込んだ後、その接合部を溶接等の手段により左右の枠体５，６を一体に結合している。   The building frame 1 includes a left frame body 5 and a right frame body 6, and the left and right frame bodies 5 and 6 are joined and integrated at intermediate portions of the horizontal members 3a and 3b. . For example, the horizontal member 3a attached to the upper end of the support 2a of the left frame 5 and the horizontal member 3b of the support 2b of the right frame 6 are connected to the horizontal member 3b of the right frame 6, for example. After inserting the open end 8 of the horizontal member 3b of the left frame 5, the left and right frames 5, 6 are joined together by means such as welding.

図示したものは、左側の枠体５として、幅寸法（左右の支柱の軸心間の寸法）が例えば９１４ｍｍである門型の既製品の建枠をその水平部材の中央から切断したもの（水平部材の端面と支柱の軸心までの寸法が４５７ｍｍ）を使用し、この左側の枠体５に右側の枠体６を一体に結合した場合に、左右の支柱２ａ，２ｂの軸心間の寸法が６１０ｍｍになるように、水平部材３ｂの長さを調整した新たな右側の枠体６を製作して、その両者を一体化した例を示している。   In the figure, as a left-side frame body 5, a gate-shaped ready-made building frame having a width dimension (a dimension between the axis centers of left and right columns) of, for example, 914 mm is cut from the center of the horizontal member (horizontal When the right frame 6 is integrally coupled to the left frame 5, the dimension between the axis of the left and right columns 2a, 2b is used. An example is shown in which a new right-side frame 6 in which the length of the horizontal member 3b is adjusted so that the length of the horizontal member 3b is adjusted to be 610 mm and the both are integrated.

連結部材７は、水平部材３ｂの開口端部８と嵌合できるよう開口端部８の内径より僅かに大きい外径を有しており、その外径から周方向に突出した係止突起９が設けられている。この係止突起９は、通常の状態では内部に設けた弾発部材（図示せず）により、その先端が連結部材７の外径から突出するように外側に付勢されており、水平部材３ａの開口端部８に挿入されたときには弾発部材の付勢力が抑制されその先端が外径より引っ込むようになっている。他方、開口端部８には、連結部材７の係止突起９が係合する貫通孔１０を有しており、右側の枠体６の水平部材３ｂに設けた連結部材７に左側の枠体５の水平部材３ａの開口端部８を差し込んで、連結部材７側の水平部材３ｂの端面が水平部材３ａの開口端部８に接触した（突き合わせた）位置で、係止突起９が貫通孔１０にしっかりと係合するように設定されている。また、係止突起９と貫通孔１０はそれぞれ１個又は２個あれば十分であるが、その周方向の位置を対応させると共にその軸心方向の位置を対応させておかなければならない。しかも、係止突起９が貫通孔１０にしっかりと係合した場合には、左右の枠体５，６の支柱２ａ，２ｂの軸心及び水平部材３ａ，３ｂの軸心が同一平面上になるように位置決めされていることが必要となる。以上のように、係止突起９と貫通孔１０との水平部材３ａ，３ｂの軸心方向の位置及び周方向の位置が、正確に設定されている場合には、常に同じ寸法形状を備えた建枠１が完成できるので、特別な組立治具を使用しなくとも左右の枠体５，６を一体に接合する作業が簡単に行えることになる。   The connecting member 7 has an outer diameter slightly larger than the inner diameter of the opening end 8 so that the connecting member 7 can be fitted with the opening end 8 of the horizontal member 3b, and a locking protrusion 9 protruding in the circumferential direction from the outer diameter. Is provided. In a normal state, the locking projection 9 is urged outward by a resilient member (not shown) provided inside so that its tip protrudes from the outer diameter of the connecting member 7, and the horizontal member 3a. When it is inserted into the open end 8, the urging force of the elastic member is suppressed, and its tip is retracted from the outer diameter. On the other hand, the opening end 8 has a through hole 10 with which the engaging projection 9 of the connecting member 7 engages, and the connecting member 7 provided in the horizontal member 3b of the right frame 6 has a left frame. 5 is inserted into the opening end 8 of the horizontal member 3a, and the locking projection 9 is a through-hole at a position where the end surface of the horizontal member 3b on the connecting member 7 side contacts (abuts) the opening end 8 of the horizontal member 3a. 10 to be securely engaged. Further, it is sufficient that one or two locking projections 9 and two through-holes 10 are provided, but the positions in the circumferential direction must be matched with the positions in the axial center direction. In addition, when the locking projection 9 is firmly engaged with the through hole 10, the axis of the columns 2a, 2b of the left and right frames 5, 6 and the axis of the horizontal members 3a, 3b are on the same plane. It is necessary to be positioned as follows. As described above, when the position in the axial direction and the position in the circumferential direction of the horizontal members 3a and 3b of the locking projection 9 and the through hole 10 are set accurately, the same dimension and shape are always provided. Since the building frame 1 can be completed, the work of integrally joining the left and right frame bodies 5 and 6 can be easily performed without using a special assembly jig.

なお、連結部材７は必ずしも右側の枠体６の水平部材３ｂに取付なければならないものではなく、左側の枠体５の水平部材３ａに取り付けてもよい。その場合には、当然に右側の枠体６の水平部材３ｂは開口端部８を備えたものとなる。   The connecting member 7 does not necessarily have to be attached to the horizontal member 3b of the right frame 6, and may be attached to the horizontal member 3a of the left frame 5. In that case, of course, the horizontal member 3b of the right side frame 6 is provided with the open end 8.

左側の枠体５として門型の既製品の建枠を使用した場合には、支柱２ａと水平部材３ａとで形成される内角部（直角部）にＪ字形の連結補強材４ａが設けられている。Ｊ字形の連結補強部材４ａの上端部は水平部材３ａの下側に固定され、その下端部は支柱２ａの中間部より下方の位置に固定されている。Ｊ字形の連結補強部材４ａの縦方向のの中間部には、支柱２ａとＪ字形の連結補強部材４ａとを接続する水平材１１が固定されている。   When a portal-type ready-made building frame is used as the left frame 5, a J-shaped connection reinforcing material 4 a is provided at an inner corner (right angle) formed by the support 2 a and the horizontal member 3 a. Yes. The upper end portion of the J-shaped connection reinforcing member 4a is fixed to the lower side of the horizontal member 3a, and the lower end portion thereof is fixed to a position below the intermediate portion of the support column 2a. A horizontal member 11 connecting the support column 2a and the J-shaped connection reinforcing member 4a is fixed to the middle portion in the vertical direction of the J-shaped connection reinforcing member 4a.

右側の枠体６は新たに製作するものであり、支柱２ｂと水平部材３ｂで形成される内角部（直角部）には、直線状の部材を斜めに配置した連結補強材（斜材）４ｂの上端部が水平部材３ｂの下側に固定され、その下端部が支柱２ｂの中間部より上方の位置に固定されている。   The right frame 6 is newly manufactured, and a connecting reinforcing material (oblique material) 4b in which a linear member is obliquely arranged at an inner corner portion (right angle portion) formed by the column 2b and the horizontal member 3b. Is fixed at a position above the middle portion of the support column 2b.

なお、連結補強材４ａ，４ｂは、必ずしも左右の枠体５，６でを異なる形状にするというものではなく、左右同一のＪ字形又は左右同一の斜材形という組み合わせでもよい。しかしながら、左右の支柱２ａ，２ｂの軸心間の寸法が６１０ｍｍのような比較的幅の狭い建枠１を構成する場合には、作業員の通路を確保する意味で、少なくとも左右の支柱２ａ，２ｂの一方の連結補強材は斜材形にするのが望ましい。   The connecting reinforcing members 4a and 4b do not necessarily have different shapes on the left and right frame bodies 5 and 6, but may be a combination of the same J shape on the left and right or the same diagonal shape on the left and right. However, when the building frame 1 having a relatively narrow width, such as a dimension between the axis centers of the left and right support columns 2a and 2b, is configured to be 610 mm, at least the left and right support columns 2a, 2 and It is desirable that one of the connecting reinforcing members 2b has a diagonal shape.

以上のような製造工程を経ることで、使用されていない既製品の旧建枠を改造して再生品の建枠を完成させることができる。これにより、安価な再生品を施工業者等が購入することができることになり、新品の購入に比べて経済的な負担が大幅に軽減される。また、現在需要の多い安全対策を考慮した建枠を、安価にかつ容易に製造することができる。さらに、施工業者等が保有していた旧建枠を再生品に切り替えることで、使わない旧建枠がなくなり使用する新たな建枠が得られることとなり、さらに、旧建枠の保管場所を新たなに購入した再生品の建枠に当てることが可能となるから、再生品の建枠のための新たな保管場所を確保する必要もないので、仮設材の運用効率が極めて高くなる。   By going through the manufacturing process as described above, it is possible to remodel an old building frame that has not been used and complete a building frame of a recycled product. As a result, a contractor or the like can purchase an inexpensive recycled product, and the economic burden is greatly reduced as compared with the purchase of a new product. In addition, it is possible to easily and inexpensively manufacture a building frame that considers safety measures that are currently in high demand. Furthermore, by switching old construction frames owned by construction contractors to remanufactured products, there will be no new old construction frames that will be used, and new construction frames will be obtained that will be used. Since it is possible to hit the building frame of the purchased recycled product, there is no need to secure a new storage place for the building frame of the recycled product, so that the operational efficiency of the temporary material becomes extremely high.

左右の支柱２ａ，２ｂは、その上端部及び下端部が開口しており、この開口部に嵌合する連結部を上下に有する建地ジョイント１２を介して、上層階と下層階との建枠１，１の支柱２ａ，２ｂを連結して足場を上方に積み上げて行くことができるようになっている。   The left and right struts 2a, 2b have upper and lower ends opened, and a building frame of upper and lower floors via a building joint 12 having upper and lower connecting portions that fit into the openings. The first and second support columns 2a and 2b are connected so that the scaffold can be stacked upward.

左側の枠体５の支柱２ａと右側の枠体６の支柱２ｂの上端部及び下端部には、交差筋交い（図示せず）を取り付けるための係止ピン１３，１３が支柱２ａの内側に１個ずつ突設されている。いずれか一方の支柱には、上下の係止ピン１３，１３の間に、間隔をおいて手摺り棒１４が取り付けることのできる２個の手摺り棒係止部１５，１５が内側に向けて突設されている。手摺り棒係止部１５は、建枠１の高さが低い場合には、作業員の安全作業が確保できることを条件に１個にしてもよい。   Locking pins 13 and 13 for attaching cross bars (not shown) are provided on the inner side of the column 2a at the upper and lower ends of the column 2a of the left frame 5 and the column 2b of the right frame 6. Projected one by one. Two handrail bar locking portions 15 and 15 to which a handrail bar 14 can be attached at an interval between the upper and lower locking pins 13 and 13 are directed to either one of the columns. Projected. When the height of the building frame 1 is low, the handrail stick locking portion 15 may be provided on condition that a worker's safety work can be secured.

図２に示したように、手摺り棒係止部１５，１５は板状をしており、その板面を内側に向けて直立させた状態の係止板１６，１６の長さ方向の一端を支柱２ｂに取り付けている。係止板１６，１６は、長手方向の上下の辺縁に波形の凹凸を形成してあり、これにより、手摺り棒１４が係止自在な凹部１６ｂを係止板１６の上下の辺縁部に有している上縁は凸部１６ａを２箇所と、これらに対応する凹部１６ｂを２箇所設けてある。上縁の波形と下縁の波形は同調することなく、下縁は凸部１６ａを３箇所とこれらに対応する凹部１６ｂを２箇所設けてある。係止板１６の先端に位置する凸部１６ａの端部は丸みを持たせることで、手摺り棒１４の開口部１６の取り付け、取り外しを容易にすると共に作業者への安全を考慮した形状としている。
次に、手摺り棒１４と手摺り棒係止部１５との関係について図３乃至図５によって説明する。 As shown in FIG. 2, the handrail bar locking portions 15 and 15 are plate-shaped, and one end in the length direction of the locking plates 16 and 16 in a state where the plate surface is erected inward. Is attached to the column 2b. The locking plates 16, 16 are formed with corrugated irregularities on the upper and lower edges in the longitudinal direction, so that the recesses 16 b to which the handrail bar 14 can be locked are formed on the upper and lower edges of the locking plate 16. The upper edge of each has two convex portions 16a and two corresponding concave portions 16b. The waveform of the upper edge and the waveform of the lower edge are not synchronized, and the lower edge is provided with three protrusions 16a and two corresponding recesses 16b. The end of the convex portion 16a located at the tip of the locking plate 16 is rounded so that the opening 16 of the handrail bar 14 can be easily attached and removed, and the shape for safety to the operator is taken into consideration. Yes.
Next, the relationship between the handrail bar 14 and the handrail bar locking portion 15 will be described with reference to FIGS.

手摺り棒１４は、両端に支柱係合部１７を有している。手摺り棒１４は管体で形成してあり、その支柱係合部１７は、管体両端をそれぞれを前後から潰して部分的に垂直板部１７ａを形成し、その垂直板部１７ａの内側を矩形状にくり抜いて形成してある。すなわち、手摺り棒１４には、一方の開口部１４ａと他方の開口部１４ｂとを設けている。   The handrail bar 14 has strut engaging portions 17 at both ends. The handrail rod 14 is formed of a tubular body, and its column engaging portion 17 is formed by partially squeezing both ends of the tubular body from the front and rear to form a vertical plate portion 17a, and inside the vertical plate portion 17a. It is cut out into a rectangular shape. That is, the handrail bar 14 is provided with one opening 14a and the other opening 14b.

それぞれの開口部１４ａ，１４ｂは、支柱２ｂの係止板１６が差し込み自在な大きさにくり抜いてある。具体的には、開口部１４ａ，１４ｂは、図４に示したように、手摺り棒１４の軸心を支柱２ａの軸心と平行乃至傾斜させて係止板１４に宛ったときに、凸部１６ａの最大寸法よりも大きな寸法を有する平行な対向二辺１４ｙ，１４ｙを有している。つまり、開口部１４ａ，１４ｂの手摺り棒１４の軸心と平行な対向二辺１４ｘ，１４ｘの間隔は係止板１６の凹部１６ｂよりも広く凸部１６ａよりも狭い寸法に形成されており、開口部１４ａ，１４ｂの手摺り棒１４の軸心と直交する対向二辺１４ｙ，１４ｙの間隔は係止板１６の支柱２ａの軸心と平行な凸部１６ａの最大寸法よりも小さな寸法に形成されている。   Each of the openings 14a and 14b is cut out to a size that allows the locking plate 16 of the column 2b to be inserted. Specifically, as shown in FIG. 4, when the openings 14a and 14b are directed to the locking plate 14 with the axis of the handrail bar 14 parallel or inclined with the axis of the column 2a, It has parallel opposing two sides 14y and 14y having dimensions larger than the maximum dimension of the convex portion 16a. That is, the distance between the opposite two sides 14x, 14x parallel to the axis of the handrail rod 14 of the openings 14a, 14b is formed to be larger than the concave portion 16b of the locking plate 16 and narrower than the convex portion 16a. The distance between two opposite sides 14y, 14y perpendicular to the axis of the handrail rod 14 of the openings 14a, 14b is formed to be smaller than the maximum dimension of the convex portion 16a parallel to the axis of the support 2a of the locking plate 16. Has been.

このため、手摺り棒１４を支柱２ｂの軸心と平行乃至傾斜させて係止板１６に宛ったときに、手摺り棒１４の開口部１４ａ，１４ｂが係止板１６の凸部１６ａを通過して一気に係止板１６の付け根部まで到達させることができる。   Therefore, when the handrail bar 14 is directed to the locking plate 16 while being parallel or inclined with respect to the axis of the support column 2b, the openings 14a and 14b of the handrail bar 14 cause the convex portion 16a of the locking plate 16 to move. It can pass and can reach the base part of the locking plate 16 at a stretch.

一方、手摺り棒１４を支柱２ｂの軸心と直交させた場合、（手摺り棒１４が直立した支柱２ｂに取り付けられた水平な姿勢の場合）には、開口部１４ａの手摺り棒１４の軸心と平行な対向二辺１４ｘ，１４ｘの間隔は、係止板１４の支柱２ａの軸心と平行な凸部１６ａの最大寸法より小さい関係にあるから、係止板１６に支柱係合部１７を係合させた状態では、手摺り棒１４の重心の関係で支柱係合部１７の垂直板部１７ａが垂直な姿勢に保たれる。そこで、この状態（手摺り棒１４が直立した支柱２ｂに取り付けられた水平な姿勢）のまま係止板１６の先端側へ手摺り棒１４を引っ張ったとしても、開口部１４ａ，１４ｂが係止板１６の凸部１６ａを通過することができないから、手摺り棒１４を支柱２ｂから取り外すことはできない。   On the other hand, when the handrail bar 14 is orthogonal to the axis of the support column 2b (when the handrail bar 14 is in a horizontal posture attached to the upright support column 2b), the handrail bar 14 of the opening 14a Since the distance between the opposite two sides 14x, 14x parallel to the shaft center is smaller than the maximum dimension of the convex portion 16a parallel to the shaft center of the support column 2a of the locking plate 14, the support plate engagement portion In the state in which 17 is engaged, the vertical plate portion 17a of the support column engaging portion 17 is maintained in a vertical posture because of the gravity center of the handrail bar 14. Therefore, even if the handrail bar 14 is pulled toward the distal end side of the locking plate 16 in this state (the horizontal posture attached to the upright column 2b), the openings 14a and 14b are locked. Since it cannot pass the convex part 16a of the board 16, the handrail rod 14 cannot be removed from the support | pillar 2b.

ただし、係止板１６の凹部１６ｂから凸部１６ａの先端までの差し渡し寸法を開口部１４ａ，１４ｂの手摺り棒１４の軸心と平行な対向二辺１４ｘ，１４ｘの間隔より僅かに小さい寸法に設定しておくことで、図３に示したように、開口部１４ａ，１４ｂの手摺り棒１４の軸心と平行な対向二辺１４ｘ，１４ｘの向かい合う壁の一方を係止板１６の凹部１６ｂに接触させて手摺り棒１４の軸心を中心に垂直板部１７ａを係止板１６の先端側へ対向二辺１４ｘ，１４ｘの向かい合う他方の壁が係止板１６の凸部１６ａを乗り越えさせるといった動作を繰り返せば、手摺り棒１４は水平な状態のままでも手摺り棒１４を支柱２ｂから外すことができる。しかしながら、これは作業者が意識的にそのような操作を行った場合であって風が吹いたり作業者の体が手摺り棒１４に触れた程度では手摺り棒１４が係止板１６から外れるようなことはないので、作業者の高所での作業の安全が保証される。   However, the passing dimension from the concave portion 16b of the locking plate 16 to the tip of the convex portion 16a is slightly smaller than the distance between the opposing two sides 14x, 14x parallel to the axis of the handrail rod 14 of the openings 14a, 14b. By setting, as shown in FIG. 3, one of the opposing walls of the opposite two sides 14x, 14x parallel to the axis of the handrail rod 14 of the openings 14a, 14b is made to be a recess 16b of the locking plate 16. The other wall facing the opposite two sides 14x, 14x gets over the convex portion 16a of the locking plate 16 with the vertical plate portion 17a centering on the axis of the handrail rod 14 toward the distal end side of the locking plate 16. If the above operations are repeated, the handrail bar 14 can be removed from the column 2b even when the handrail bar 14 remains in a horizontal state. However, this is a case where the operator consciously performs such an operation, and the handrail bar 14 is detached from the locking plate 16 as long as the wind blows or the worker's body touches the handrail bar 14. Since this is not the case, the safety of the work at the height of the worker is guaranteed.

上記のように構成された建枠１においては、手摺り棒１４を特別な工具等を用いることなく容易に着脱することができる手摺り棒係止部１５が支柱２ｂに設けられているので作業性が向上する。また、その手摺り棒係止部１５は支柱２ｂ内側に突設されているので、建枠１の全体的な外形が矩形形状を呈し外形から突出する部材がないから、搬送時の取り扱い及び保管が容易である。
[発明の実施の形態２] In the building frame 1 configured as described above, since the handrail bar locking portion 15 that can easily attach and detach the handrail bar 14 without using a special tool or the like is provided on the column 2b, the work frame 1 is operated. Improves. Further, since the handrail bar locking portion 15 is projected from the inside of the support column 2b, the overall outer shape of the building frame 1 is rectangular and there is no member protruding from the outer shape. Is easy.
[Embodiment 2 of the Invention]

以下、この発明の実施の形態２に係る建枠の正面図である図６により説明する。   Hereinafter, it demonstrates with FIG. 6 which is a front view of the building frame which concerns on Embodiment 2 of this invention.

なお、この発明の実施の形態２の説明にあたって、この発明の実施の形態１と同一構成部分については同一符号を付して重複する説明を省略する。   In the description of the second embodiment of the present invention, the same components as those of the first embodiment of the present invention are denoted by the same reference numerals, and redundant description is omitted.

実施の形態２に係る建枠１ａにおいても、実施の形態１と同様に、建枠１ａは、左側の枠体（一方の枠体）５と右側の枠体（他方の枠体）６から構成されており、左右の枠体５，６はそれぞれの水平部材３ａ，３ｂの中間部で接合して一体化されている。   Also in the building frame 1a according to the second embodiment, the building frame 1a includes a left frame (one frame) 5 and a right frame (the other frame) 6 as in the first embodiment. The left and right frame bodies 5 and 6 are joined and integrated at the intermediate portions of the horizontal members 3a and 3b.

実施の形態１の構成と異なるのは、左側の枠材５の支柱２ａよりも右側の枠材６の支柱２ｂを上方にずらして形成されている点である。これにより、水平部材３ａの支柱２ｂへの取付位置と、支柱２ｂへの手摺り棒係止部１５の取付位置と、係止ピン１３の取付位置が異なっている点である。   The difference from the configuration of the first embodiment is that the column 2b of the right frame member 6 is shifted upward from the column 2a of the left frame member 5. Thereby, the attachment position of the horizontal member 3a to the support column 2b, the attachment position of the handrail stick locking portion 15 to the support column 2b, and the attachment position of the engagement pin 13 are different.

右側の枠体６は、支柱２ｂの中間部より僅かに下方の位置の内側に水平部材３ｂの右端部が取り付けられている。水平部材３ｂの下方に突出している支柱２ｂと水平部材３ａとで形成される内角部（直角部）には、斜めに配置した直線状の連結補強材（斜材）４ｂの上端部が水平部材３ｂの下側に固定され、その下端部が支柱２ｂの下端部より僅かに上方の位置の内側に固定されている。   The right end of the horizontal member 3b is attached to the inside of the right frame 6 at a position slightly below the middle part of the support column 2b. At the inner corner (right angle) formed by the column 2b projecting below the horizontal member 3b and the horizontal member 3a, the upper end portion of the linear connection reinforcing material (oblique material) 4b arranged obliquely is the horizontal member. 3b is fixed to the lower side, and its lower end is fixed to the inside of a position slightly above the lower end of the column 2b.

また、水平部材３ｂを挟んで水平部材３ｂの近傍の上方と下方の位置には、支柱２ｂの内側に交差筋交い（図示せず）を取り付けるための係止ピン１３が１個ずつ突設されている。右側の枠材６の支柱２ｂには、その上端部と上方の係止ピン１３との間には、間隔をおいて２つの手摺り棒係止部１５，１５が内側に向けて突出させている。   Further, at the upper and lower positions in the vicinity of the horizontal member 3b with the horizontal member 3b in between, locking pins 13 for attaching cross bars (not shown) to the inside of the support column 2b are projected one by one. Yes. Two handrail rod locking portions 15, 15 project inwardly between the upper end portion of the column 2 b of the right frame member 6 and the upper locking pin 13 with a gap therebetween. Yes.

また、実施の形態２に係る建枠１ａを用いて足場を構築する場合には、一階部分（最下段）に使用する建枠１ａには、後述する補助支柱１８を用いて連結する。   Moreover, when constructing | assembling a scaffold using the building frame 1a which concerns on Embodiment 2, it connects to the building frame 1a used for a 1st floor part (lowermost stage) using the auxiliary | assistant support | pillar 18 mentioned later.

上記のように構成された建枠１ａにおいては、水平部材３ａ，３ｂよりも上方にある支柱２ｂに手摺り棒係止部１５が備えてあるので、下層階から手摺り棒１４を上方にある支柱２ｂに手摺り棒係止部１５に取り付けることができるため、先行手摺りを備えた足場を容易に構築することができる。また、上方にある支柱２ｂが建枠１ａに一体に形成されているので、支柱２ｂと手摺り棒１４を含む先行手摺り部が建枠１ａから外れる心配がないため、作業者も安心して作業ができる。
[発明の実施の形態３] In the building frame 1a configured as described above, since the handrail bar locking portion 15 is provided on the column 2b above the horizontal members 3a and 3b, the handrail bar 14 is located above the lower floor. Since the handrail stick locking portion 15 can be attached to the support column 2b, a scaffold provided with a preceding handrail can be easily constructed. Further, since the upper support column 2b is formed integrally with the building frame 1a, there is no fear that the preceding handrail part including the support column 2b and the handrail bar 14 will be detached from the building frame 1a. Can do.
Embodiment 3 of the Invention

以下、この発明の実施の形態３に係る建枠の正面図である図７について説明する。   Hereinafter, FIG. 7 which is a front view of a building frame according to Embodiment 3 of the present invention will be described.

なお、この発明の実施の形態３の説明にあたって、この発明の実施の形態２と同一構成部分については同一符号を付して重複する説明を省略する。   In the description of the third embodiment of the present invention, the same components as those of the second embodiment of the present invention are denoted by the same reference numerals, and redundant description is omitted.

実施の形態３に係る建枠１ｂにおいても、実施の形態２と同様に、建枠１ｂは、左側の枠体（一方の枠体）５と右側の枠体（他方の枠体）６から構成されており、左右の枠体５，６はそれぞれの水平部材３ａ，３ｂの中間部で接合して一体化されている。   Also in the building frame 1b according to the third embodiment, the building frame 1b includes a left frame (one frame) 5 and a right frame (the other frame) 6 as in the second embodiment. The left and right frame bodies 5 and 6 are joined and integrated at the intermediate portions of the horizontal members 3a and 3b.

実施の形態２の構成と異なるのは、右側の枠体６支柱２ｂが水平部材３ｂのすぐ上の部分で分割されており、支柱２ｂの上方の開口端部に建地ジョイント１２を介して補助支柱１８が着脱自在に連結されている点である。   The difference from the configuration of the second embodiment is that the right frame 6 strut 2b is divided at a portion immediately above the horizontal member 3b, and the opening end above the strut 2b is assisted through a building joint 12 The support 18 is detachably connected.

右側の枠体６の部材は、左側の枠体５の支柱２ａの半分ほどの長さからなる短い支柱２ｂの上端部に水平部材３ｂの右端部が取り付けられている。この短い支柱２ｂと水平部材３ｂにより形成される内角部（直角部）には、斜めに配置した直線状の連結補強材（斜材）４ｂの上端部が水平部材３ｂの下側に固定され、その下端部が短い支柱２ｂの下端部より僅かに上方の位置に固定されている。   The member of the right frame 6 has the right end of the horizontal member 3b attached to the upper end of a short column 2b that is about half the length of the column 2a of the left frame 5. At the inner corner (right angle) formed by the short support column 2b and the horizontal member 3b, the upper end portion of the linear connecting reinforcing material (oblique material) 4b arranged obliquely is fixed to the lower side of the horizontal member 3b, Its lower end is fixed at a position slightly above the lower end of the short column 2b.

そして、短い支柱２ｂの下端開口部には、建地ジョイント１２を介して補助支柱１８ａが着脱自在に連結できるようになっている。   And the auxiliary | assistant support | pillar 18a can be connected to the lower end opening part of the short support | pillar 2b via the building joint 12 so that attachment or detachment is possible.

短い支柱２ｂの下端に取り付けられる補助支柱１８ａは、１階部分（最下段）の建枠１ｂにのみ使われるものであるが、手摺り棒係止部１５が設けられている補助支柱１８を流用してもよい。   The auxiliary column 18a attached to the lower end of the short column 2b is used only for the building frame 1b on the first floor (bottom stage), but the auxiliary column 18 provided with the handrail rod locking portion 15 is diverted. May be.

補助支柱１８は、水平部材３ｂ側の下端部の位置の内側には、交差筋交い（図示せず）を取り付けるための係止ピン１３が１個突設されている。補助支柱１８の上端部と係止ピン１３との間には、間隔をおいて２つの手摺り棒係止部１５，１５が内側に向けて突出させている。   The auxiliary support column 18 has one locking pin 13 projecting from the position of the lower end portion on the horizontal member 3b side for attaching a cross bar (not shown). Between the upper end portion of the auxiliary column 18 and the locking pin 13, two handrail bar locking portions 15, 15 are protruded inward with a gap.

このように構成された建枠１ｂにおいては、水平部材３ｂより上方の部位の補助支柱１８は、水平部材３ｂの直上の位置で水平部材３ｂから下方の部位の短い支柱２ｂと着脱自在であるので、下層階において水平部材３ｂより補助支柱１８の手摺り棒係止部１５に手摺り棒１４をセットして上層階の先行手摺りを構築することができるから、作業者の安全がより確保される。また、水平部材３ｂより上方の部位を構成する補助支柱１８を取り外すと建枠１ｂが軽量でコンパクトになるので、搬送時の取り扱いや保管がより容易になる。   In the building frame 1b configured as described above, the auxiliary support column 18 at a position above the horizontal member 3b is detachable from the horizontal support 3b at a position directly above the horizontal member 3b with a short support column 2b at a position below the horizontal member 3b. Since the handrail bar 14 can be set on the handrail bar locking portion 15 of the auxiliary support column 18 from the horizontal member 3b on the lower floor, the preceding handrail on the upper floor can be constructed, so that the safety of the worker is further ensured. The Moreover, since the building frame 1b will become lightweight and compact if the auxiliary support | pillar 18 which comprises the site | part above the horizontal member 3b is removed, the handling and storage at the time of conveyance will become easier.

この発明の実施の形態１に係る建枠の正面図である。It is a front view of the building frame which concerns on Embodiment 1 of this invention. この発明の実施の形態１に係る手摺り棒係止部に係止された手摺り棒の要部を示した拡大説明図である。It is an expansion explanatory view showing the principal part of the handrail bar latched by the handrail rod latching part concerning Embodiment 1 of this invention. この発明の実施の形態１に関連する手摺り棒の中間部を省略した正面図である。It is the front view which abbreviate | omitted the intermediate part of the handrail bar relevant to Embodiment 1 of this invention. この発明の実施の形態１に関連する手摺り棒の一端を一方の支柱の手摺り棒係止部に取り付ける状態を示した説明図である。It is explanatory drawing which showed the state which attaches the end of the handrail rod relevant to Embodiment 1 of this invention to the handrail rod latching | locking part of one support | pillar. この発明の実施の形態１に係る建枠の製造方法についての説明図である。It is explanatory drawing about the manufacturing method of the building frame which concerns on Embodiment 1 of this invention. この発明の実施の形態２に係る建枠の正面図である。It is a front view of the building frame which concerns on Embodiment 2 of this invention. この発明の実施の形態３に係る建枠の正面図である。It is a front view of the building frame which concerns on Embodiment 3 of this invention. 鳥居型の建枠を使用した従来の枠組足場の完成状態を示した斜視図である。It is the perspective view which showed the completion state of the conventional frame scaffold using a torii type building frame. Ｈ型の建枠を使用した従来の枠組足場の完成状態を示した斜視図である。It is the perspective view which showed the completion state of the conventional frame scaffold using an H-shaped building frame.

符号の説明Explanation of symbols

１，１ａ，１ｂ 建枠
２，２ａ，２ｂ，２ｃ 支柱
３，３ａ，３ｂ 水平部材
４，４ａ，４ｂ 連結補強材
５ 左側の枠体（第１枠体）
６ 右側の枠体（第２枠体）
７ 連結部材
８ 開口端部
９ 係止突起
１０ 貫通孔
１２ 建地ジョイント
１３ 係止ピン
１４ 手摺り棒
１４ａ，１４ｂ 開口部
１４ｘ 軸心と平行な対向二辺
１４ｙ 軸心と直交する対向二辺
１５ 手摺り棒係止部
１６ 係止板
１６ａ 凸部
１６ｂ 凹部
１７ 支柱係合部
1, 1a, 1b Building frame 2, 2a, 2b, 2c Column 3, 3a, 3b Horizontal member 4, 4a, 4b Connection reinforcement 5 Left frame (first frame)
6 Right frame (second frame)
7 Connecting member 8 Open end 9 Locking protrusion
DESCRIPTION OF SYMBOLS 10 Through-hole 12 Building joint 13 Locking pin 14 Handrail rod 14a, 14b Opening part 14x Opposite two sides parallel to an axis
14y Two opposite sides orthogonal to the axis 15 Handrail rod locking portion 16 Locking plate 16a Protruding portion 16b Recessing portion 17 Strut engaging portion

Claims (7)

同じ長さの２本の支柱の両端部を揃えて平行に配置された前記２本の支柱の上端部が水平部材により結合され、前記２本の支柱と前記水平部材により形成された２つの内角部が連結補強材で結合された建枠において、前記左右の枠体のうちの一方の枠体は、既製品の建枠の水平部材の中央で切断したものであり、他方の枠体の水平部材は前記一方の枠体の水平部材より短い長さであることを特徴とする建枠。 Two internal corners formed by the two struts and the horizontal member are joined by a horizontal member at the upper ends of the two struts arranged in parallel with both ends of the two struts having the same length aligned. In the building frame in which the parts are coupled with the connecting reinforcing material, one of the left and right frames is cut at the center of the horizontal member of the ready-made building frame, and the horizontal of the other frame The building frame is characterized in that the member has a shorter length than the horizontal member of the one frame. 前記一方の前記支柱に設けた２個のブレース取付用係止部の間に内側に突設された少なくとも１つの手摺り棒係止部を備えていることを特徴とする請求項１に記載の建枠。The at least one handrail bar locking portion protruding inwardly between two brace mounting locking portions provided on the one of the support columns is provided. Building frame. 同じ長さの２本の支柱の一方の支柱の上端部と、他方の支柱の中間部とが水平部材により結合され、前記２本の支柱と前記水平部材により形成された２つの内角部が連結補強材で結合された建枠において、前記左右の枠体のうちの一方の枠体は、既製品の建枠の水平部材の中央で切断したものであり、他方の枠体の水平部材は前記一方の枠体の水平部材より短い長さであることを特徴とする建枠。The upper end of one strut of two struts of the same length and the middle portion of the other strut are joined by a horizontal member, and the two inner corners formed by the two struts and the horizontal member are connected. In the building frame combined with the reinforcing material, one of the left and right frames is cut at the center of the horizontal member of the ready-made building frame, and the horizontal member of the other frame is A building frame having a shorter length than a horizontal member of one frame. 前記水平部材より上方にある前記他方の支柱の中間部の内側に突設された少なくとも１つの手摺り棒係止部を備えていることを特徴とする請求項３に記載の建枠。The building frame according to claim 3, further comprising at least one handrail bar locking portion projecting inside an intermediate portion of the other support column above the horizontal member. 前記他方の支柱の前記水平部材より上方の部位は、前記水平部材の直上の位置で前記他方の支柱の前記水平部材から下方の部位と着脱自在であることを特徴とする請求項３又は４に記載の建枠。The part above the horizontal member of the other pillar is detachable from the part below the horizontal member of the other pillar at a position immediately above the horizontal member. The building frame described. 少なくとも一方の前記連結補強材は、前記手摺り棒係止部を備えている方の前記支柱と前記水平部材の内角部で結合された斜材であることを特徴とする請求項１乃至５のいずれか一つに記載の建枠。The at least one of the connecting reinforcing members is a diagonal member connected at the inner corner of the horizontal member with the column having the handrail rod locking portion. The building frame as described in any one. 左右の枠体を結合して前記請求項１乃至６のいずれか一つに記載の建枠を組み立てる建枠の製造方法において、In the manufacturing method of the building frame which assembles the building frame according to any one of claims 1 to 6 by combining the left and right frame bodies,
既製品の建枠の水平部材の中央で切断して２つの第１枠体を製造する第１工程と、前記第１枠体の水平部材よりも短い長さの水平部材と支柱との内角部に連結補強材を有する第２枠体を製作する第２工程と、前記第１枠体と前記第２枠体とをそれぞれの水平部材同士を突き合わせて接合する第３工程と、を有することを特徴とする建枠の製造方法。A first step of producing two first frame bodies by cutting at the center of a horizontal member of an off-the-shelf building frame, and an inner corner portion of a horizontal member and a column having a shorter length than the horizontal member of the first frame body A second step of manufacturing a second frame body having a connection reinforcing member, and a third step of joining the first frame body and the second frame body with each horizontal member being brought into contact with each other. A manufacturing method of a characteristic building frame.

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