JP2020026726A - Baseboard and installation structure of baseboard - Google Patents

Abstract

To provide a baseboard which is excellent in a safety reassuring performance and is advantageous economically as well and an installation structure of the baseboard.SOLUTION: At a baseboard obtained by folding a band plate of a predetermined length in its band width direction, at least one end rim side and other end rim side in the band width direction are configured so that they each are made to be a plane part extending in the band width direction and these both plane parts extend parallel in a plate thickness direction in a predetermined interval. According to the configuration, the baseboard has a very simple structure and can be manufactured at a low cost.SELECTED DRAWING: Figure 2

Description

本願発明は、仮設足場に設置される幅木及び該幅木の設置構造に関するものである。  The present invention relates to a skirting board installed on a temporary scaffold and an installation structure of the skirting board.

土木・建築の工事現場において設置される架設足場においては、布板等の作業床からの人とか作業工具等の落下防止を図るべく、該布板の縁部に幅木を設けることが法定されており、これに応えるものとして従来から種々構造の幅木及びその設置構造が提案されている（例えば、特許文献１〜３参照）。  In a construction scaffold installed at a construction site of civil engineering and construction, it is legally required to provide a baseboard at an edge of the work board in order to prevent falling of a person or a work tool from a work floor such as a work board. In order to respond to this, various types of skirting boards and their installation structures have been conventionally proposed (for example, see Patent Documents 1 to 3).

特許文献１に示されるものは、木製の幅木を用いるもので、支柱の前面に当接状態で立てて配置した幅木の下端縁を、前後の支柱間に配置されたつなぎ材上に載置するとともに、該幅木の上端縁側を、上記支柱に取付けたフック状の保持手段によって固定するようにしている。この場合、隣接する横材間に跨って掛止された布板及びその掛止フックは上記幅木よりも足場面中心寄りに位置しており、上記幅木とは非連係とされている。  The thing shown in patent document 1 uses a wooden skirting board, and mounts the lower end edge of the skirting board which stood upright on the front surface of a support | pillar on the connecting material arrange | positioned between front and back support | pillars. At the same time, the upper edge side of the skirting board is fixed by a hook-shaped holding means attached to the support. In this case, the cloth board hung over the adjacent cross members and the hooks thereof are located closer to the center of the foot scene than the skirting board, and are not linked to the skirting board.

特許文献２に示されるものは、帯板材で構成される幅木を用いたもので、該幅木の長さを隣接する一対の支柱間の間隔（スパーン）に対応させるとともに、その長手方向の左右両端部にそれぞれ弾発タイプのブラケットを取り付けてある。そして、上記幅木の下端縁を布板の上面に乗せた状態で、該幅木を上記左右のブラケットによって隣接する支柱に固定するようになっている。  The thing shown in patent document 2 uses the skirting board which consists of a strip board material, and makes the length of this skirting board correspond to the space | interval (span) between a pair of adjacent support | pillars, and the longitudinal direction A spring type bracket is attached to each of the left and right ends. Then, with the lower edge of the skirting board placed on the upper surface of the cloth board, the skirting board is fixed to an adjacent column by the left and right brackets.

特許文献４に示されるものは、略Ｌ形の断面形状をもつ屈曲板状の幅木を用いたもので、該幅木の長さを隣接する一対の支柱の間隔寸法に対応させて設定している。そして、この幅木を、上記一対の支柱間に跨って配置し、その下端側の平面部と布板の縁部に乗せてこれを支持させるとともに、他方の縁部は上記支柱に接触させた状態で、該支柱側に設けた取付金具にロックピンによって固定するようにしている。  The technique disclosed in Patent Document 4 uses a bent plate-shaped skirting board having a substantially L-shaped cross-section, and the length of the skirting board is set in accordance with the distance between a pair of adjacent columns. ing. Then, this skirting board was disposed across the pair of columns, and was placed on and supported the flat portion on the lower end side and the edge of the cloth plate, and the other edge was in contact with the column. In this state, it is fixed to a mounting bracket provided on the column by a lock pin.

特開２０１０−２７５８０９号公報JP 2010-275809 A 特開２００３−２１３９２７号公報JP 2003-213927 A 特開２００４−６０１６７号公報JP 2004-60167 A

ところが、これら各特許文献に示されるものにおいては、以下のような問題がある。  However, those disclosed in these patent documents have the following problems.

特許文献１に示されるものでは、幅木を足場のつなぎ材上に載置する構成であることから、該つなぎ材に掛止された布板のフックを避ける必要があり、そのため該幅木と上記布板の間に該幅木の長さ方向に延びる隙間が必然的に生じ、例えばこの隙間の幅を法定寸法内に維持することが難しい場合もあり、安全確保上、万全とは言い難いものである。  In the structure disclosed in Patent Document 1, since the skirting board is placed on the connecting material of the scaffold, it is necessary to avoid the hook of the cloth plate hooked on the connecting material, and therefore, A gap extending in the length direction of the skirting board is inevitably generated between the cloth boards. For example, it may be difficult to maintain the width of the gap within legal dimensions. is there.

特許文献２に示されるものでは、幅木の両端をブラケットによって支柱に固定する構成であることから、該幅木はその長さ寸法が上記支柱のスパーン、あるいは上記布板の長さ寸法に対応して決定されるので、例えば、幅木として、布板の長さに対応する毎に複数種類用意する必要があり、不経済である。  In the structure disclosed in Patent Document 2, since the both ends of the skirting board are fixed to the pillars by brackets, the length of the skirting board corresponds to the span of the pillars or the length of the cloth plate. Therefore, for example, it is necessary to prepare a plurality of types of skirting boards each corresponding to the length of the cloth board, which is uneconomical.

また、この幅木は、その下端を布板の上面に預けた状態で設置されることから、該幅木の下端と布板のフックとの干渉を避ける必要があり、そのため布板の両端部の下端側には切欠きが設けられていることから、この切欠き部分においては下方に臨む開口が生じ、この部分からの作業工具の小物類が落下するおそれがあり、安全確保上、万全とは言い難いものである。  In addition, since the baseboard is installed with its lower end left on the upper surface of the cloth board, it is necessary to avoid interference between the lower end of the baseboard and the hooks of the cloth board. Since a notch is provided on the lower end side, an opening facing downward occurs in this notch, and there is a possibility that small items of the work tool may fall from this part, and in order to ensure safety, it is not perfect. It is hard to say.

さらに、上記幅木が上記布板のフックとの干渉を避けるようにしていることから、該幅木は上記布板の幅方向（つなぎ材の長手方向）への移動を規制する機能をもたず、場合によっては上記布板が幅方向に位置ズレし、該布板の長辺側の縁部と上記幅木との間に法定寸法以上の隙間ができることも考えられ、安全性確保の観点から好ましくない。  Further, since the skirting board avoids interference with the hooks of the cloth board, the skirting board has a function of restricting movement of the cloth board in the width direction (longitudinal direction of the joining material). In some cases, the cloth board may be misaligned in the width direction, and a gap larger than the legal size may be formed between the edge on the long side of the cloth board and the skirting board. Is not preferred.

特許文献３に示されるものでは、幅木の両端を支柱に設けた取付金具とここに取付けられるロックピンによって固定する構成であることから、該幅木はその長さ寸法が上記支柱のスパーン、あるいは上記布板の長さ寸法に対応して決定されるので、例えば、幅木として、布板の長さに対応する毎に複数種類用意する必要があり、不経済である。  Patent Literature 3 discloses a configuration in which both ends of a skirting board are fixed by a mounting bracket provided on a pillar and a lock pin attached thereto, so that the skirting board has a span length of the above-described pillar, Alternatively, since it is determined according to the length dimension of the cloth board, for example, it is necessary to prepare a plurality of types of baseboards corresponding to the length of the cloth board, which is uneconomical.

また、この幅木は、Ｌ形に折曲形成された平板状の下端部を布板の上面に預けた状態で設置されることから、該幅木の下端部と布板のフックとの干渉を避ける必要があり、そのため布板の両端部には切欠きが設けられており、この切欠き部分においては下方に臨む開口が生じ、この部分からの作業工具の小物類が落下するおそれがあり、安全確保上、万全とは言い難いものである。  Further, since the baseboard is installed in a state where the lower end of a flat plate bent in an L shape is deposited on the upper surface of the cloth board, interference between the lower end of the baseboard and the hook of the cloth board is prevented. It is necessary to avoid it, so notches are provided at both ends of the cloth plate, an opening facing downward occurs in this notch part, there is a risk that small items of the work tool may fall from this part, It is hard to say that it is perfect for ensuring safety.

さらに、上記幅木が上記布板のフックとの干渉を避けるようにしていることから、該幅木は上記布板の幅方向（つなぎ材の長手方向）への移動を規制する機能をもたず、場合によっては上記布板が幅方向に位置ズレし、該布板の長辺側の縁部と上記幅木との間に法定寸法以上の隙間ができることも考えられ、安全性確保の観点から好ましくない。  Further, since the skirting board avoids interference with the hooks of the cloth board, the skirting board has a function of restricting movement of the cloth board in the width direction (longitudinal direction of the joining material). In some cases, the cloth board may be misaligned in the width direction, and a gap larger than the legal size may be formed between the edge on the long side of the cloth board and the skirting board. Is not preferred.

そこで本願発明は、安全確保機能に優れ、しかも経済的にも有利な幅木及び幅木の設置構造を提案することを目的としてなされたものである。  Then, this invention is made for the purpose of proposing the baseboard and the installation structure of the baseboard which are excellent in the safety ensuring function, and are also economically advantageous.

本願の第１の発明は、所定長さの帯板材をその帯長方向に折曲してなる幅木において、少なくとも帯幅方向の一方の端縁側と他方の端縁側がそれぞれ帯長方向に延びる平面部とされるとともに、これら該両平面部が板厚方向に所定間隔をもって平行に延出するように構成したことを特徴としている。  According to a first aspect of the present invention, in a skirting board formed by bending a strip of a predetermined length in the strip length direction, at least one edge side and the other edge side in the strip width direction respectively extend in the strip length direction. A flat portion is formed, and the flat portions are configured to extend in parallel in the thickness direction with a predetermined interval.

本願の第２の発明では、上記第１の発明において、上記両平面部の中間部分を、該両平面部間の高低差の範囲内において上記一方の平面部側から他方の平面部側に膨出して帯長方向に延設された凸条部、または他方の平面部から一方の平面部側へ膨出して帯長方向に延設された凹条部としたことを特徴としている。  In a second aspect of the present invention, in the first aspect, the intermediate portion between the two flat portions is expanded from the one flat portion side to the other flat portion side within a range of a height difference between the two flat portions. It is characterized in that it is a protruding ridge portion extending in the belt length direction and a concave ridge portion protruding from the other flat portion to one flat portion side and extending in the belt length direction.

本願の第３の発明では、請求項１又は２に記載の幅木を足場上に設置するための設置構造であって、所定間隔で複数の支柱を列設してなる前後一対の支柱群を、所定間隔をもって略平行に設置するとともに、一方の支柱群の各支柱とこれに対向する他方の支柱群の各支柱をそれぞれつなぎ材で連結して略梯子状形体とするとともに、隣接するつなぎ材３間に布板を配置してその各端部の左右両側に設けた掛止フックをそれぞれ上記つなぎ材に掛止させて成る足場において、上記幅木を、上記一方の支柱群の少なくとも隣接する２本の支柱にまたがって配置し、該幅木の一方の平面部を上記支柱に接触又は近接対向させる一方、他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させた状態でその端面を上記布板の上面に載置又は近接対向させ、この状態で、上記支柱に取付けたクランプによって上記一方の平面部を該支柱に引き付けて固定することを特徴としている。  According to a third aspect of the present invention, there is provided an installation structure for installing the skirting board according to claim 1 or 2 on a scaffold, and a pair of front and rear support groups each including a plurality of support columns arranged at predetermined intervals. Are installed substantially in parallel with a predetermined interval, and each pillar of one pillar group and each pillar of the other pillar group opposing the pillar group are connected to each other with a bridging material to form a substantially ladder-like body, and a neighboring bridging material is formed. In a scaffold having a cloth plate disposed between the three and having hooks provided on both left and right sides of each end thereof respectively hooked to the connecting material, the skirting board is attached at least adjacent to the one column group. The skirting board is disposed so as to straddle two pillars, and one flat portion of the skirting board is brought into contact with or close to the pillar, while the other flat portion is closer to the center of the cloth board than the hooks of the cloth board. With its end face on the upper surface of the cloth plate Placing 置又 causes the closely opposed, in this state, is characterized by securing attract the flat portion of one above the strut by a clamp attached to the support column.

本願の第４の発明では、上記第３の発明において、上記幅木が請求項２に記載の幅木である場合にあっては、上記凹条部を上記支柱に当接又は近接対向させることを特徴としている。  In the fourth invention of the present application, in the third invention, when the skirting board is the skirting board according to the second aspect, the concave ridge portion is brought into contact with or close to the support column. It is characterized by.

（ａ） 本願の第１の発明では、所定長さの帯板材をその帯長方向に折曲してなる幅木において、少なくとの帯幅方向の一方の端縁側と他方の端縁側がそれぞれ帯長方向に延びる平面部とされるとともに、これら該両平面部が板厚方向に所定間隔をもって平行に延出するように構成したので、該幅木はその構造が極めて簡単であり、これをより安価に提供できる。  (A) In the first invention of the present application, in a skirting board formed by bending a strip of a predetermined length in the strip length direction, at least one end side and the other end side in the strip width direction are respectively provided. The skirting board has a very simple structure because it has a flat portion extending in the band length direction and the two flat portions are configured to extend in parallel with a predetermined interval in the plate thickness direction. It can be provided at a lower cost.

（ｂ） 本願の第２の発明では、上記（ａ）に記載の効果に加えて、以下のような特有の効果が得られる。即ち、この発明では、上記両平面部の中間部分を、該両平面部間の高低差の範囲内において上記一方の平面部側から他方の平面部側に膨出して帯長方向に延設された凸条部または他方の平面部から一方の平面部側へ膨出して帯長方向に延設された凹条部としたので、該凸条部と凹条部によって上記幅木の板厚方向における曲げ剛性が高められ、該幅木を仮設足場に設置した場合における強度性能が高く、それだけ該幅木を備えたことによる仮設足場の安全性が向上する。  (B) In the second invention of the present application, the following specific effects are obtained in addition to the effects described in the above (a). That is, in the present invention, the intermediate portion between the two flat portions is swelled from the one flat portion side to the other flat portion side within the range of the height difference between the two flat portions, and is extended in the belt length direction. The convex ridge or the other flat portion bulges toward the one flat portion side to form a concave ridge extending in the belt length direction. The rigidity of the temporary scaffold is increased, and the strength performance when the skirting board is installed on the temporary scaffold is high, and the safety of the temporary scaffolding provided with the skirting board improves accordingly.

（ｃ）本願の第３の発明では、上記第１の発明又は第２の発明に係る幅木を足場上に設置するための設置構造であって、所定間隔で複数の支柱２を列設してなる前後一対の支柱群を、所定間隔をもって略平行に設置するとともに、一方の支柱群の各支柱とこれに対向する他方の支柱群の各支柱をそれぞれつなぎ材で連結して略梯子状形体とするとともに、隣接するつなぎ材間に布板を配置してその各端部の左右両側に設けた掛止フックをそれぞれ上記つなぎ材に掛止させて成る足場において、上記幅木を、上記一方の支柱群の少なくとも隣接する２本の支柱にまたがって配置し、該幅木の一方の平面部を上記支柱に接触又は近接対向させる一方、他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させた状態でその端面を上記布板の上面に載置又は近接対向させ、この状態で、上記支柱に取付けたクランプによって上記一方の平面部を該支柱に引き付けて固定するようにしている。  (C) In the third invention of the present application, an installation structure for installing the skirting board according to the first invention or the second invention on a scaffold, wherein a plurality of columns 2 are arranged at predetermined intervals. A pair of support columns are installed in parallel with a predetermined interval, and each support of one support group and each support of the other support group facing the support group are connected to each other by a connecting material, respectively, to form a substantially ladder-shaped structure. And a scaffold comprising a cloth plate disposed between adjacent connecting members, and hooks provided on the left and right sides of each end thereof being respectively hooked to the connecting members. The strut group is disposed so as to straddle at least two adjacent struts, and one flat portion of the skirting board is brought into contact with or close to the strut, while the other flat portion is engaged with the hook of the cloth plate. Position the end closer to the center of the cloth board than the hook. The is 置又 mounting on the upper surface of the cloth sheet is closely opposed, in this state, so as to attract and immobilize the flat portion of one above the strut by a clamp attached to the support column.

したがって、
（ｃ−１） 上記幅木を、上記一方の支柱群の少なくとも隣接する２本の支柱にまたがって配置し、上記支柱に取付けたクランプによって上記一方の平面部を該支柱に引き付けて固定する構成であることから（即ち、各支柱の位置において、ここに対応している上記幅木の対応部位を上記支柱に取付けたクランプによって固定すれば良いことから）、上記幅木の長さ寸法は上記支柱群の各支柱の間隔（スパーン）に制約されることなく設定することができ、その汎用性が高められ、より少ない種類（長さ）の幅木を用意しておけば足り、例えば、従来のように一対の支柱の間隔、即ち、布板の長さ寸法に対応させる必要がなく、それだけ経済性が向上し、延いてはより安価に幅木を提供できる、
（ｃ−２） 上記幅木の上記他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させた状態で、その端面を上記布板の上面に載置又は近接対向させるようにしていることから、上記掛止フックの存在によって上記幅木の設置が制約されることが無く、したがって、例えば、上記支柱に対応する部分においても従来のように上記幅木の一部を切り欠く必要が無く、この結果、上記布板の端縁と上記幅木との間に隙間が生じず、上記幅木による落下防止効果が格段に向上する、
（ｃ−３） 上記幅木の上記他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させたことから、該他方の平面部は、上記布板の掛止フックが布板中心寄りに移動するのを規制するごとく機能し、これによって上記布板と幅木の間に隙間が生じるのが未然に防止され、延いては上記幅木による落下防止効果がさらに向上する、
等の効果が得られる。Therefore,
(C-1) A configuration in which the skirting board is arranged so as to straddle at least two adjacent columns of the one column group, and the one flat portion is attracted to and fixed to the column by a clamp attached to the column. (That is, at the position of each strut, the corresponding portion of the skirting board corresponding thereto may be fixed by a clamp attached to the stanchion), so the length dimension of the skirting board is It can be set without being restricted by the interval (span) between each strut of the strut group, its versatility is enhanced, and it is sufficient to prepare a smaller type (length) of baseboard, for example, It is not necessary to correspond to the distance between the pair of columns, that is, the length of the cloth board, so that the economic efficiency is improved and the baseboard can be provided at a lower cost.
(C-2) The other flat portion of the baseboard is placed closer to the center of the cloth board than the hooks of the cloth board, and the end face is placed on the upper surface of the cloth board or Due to the close proximity, the installation of the skirting board is not restricted by the presence of the hooks. Therefore, for example, even in a portion corresponding to the support, There is no need to cut out a part, as a result, no gap is generated between the edge of the cloth board and the skirting board, and the drop prevention effect by the skirting board is significantly improved.
(C-3) Since the other flat portion of the skirting board is located closer to the center of the cloth plate than the hooks of the cloth plate, the other flat portion is formed by the hook of the cloth plate. Acts as if the stop hook is controlled to move toward the center of the cloth board, thereby preventing a gap from being generated between the cloth board and the baseboard, thereby further improving the drop prevention effect of the baseboard. Do
And the like.

（ｄ）本願の第４の発明では、上記（ｃ）に記載の効果に加えて、以下のような特有の効果が得られる。即ち、この発明では、上記幅木が本願の第２の発明に係る幅木である場合にあっては、上記凹条部を上記支柱に当接又は近接対向させるようにしているので、該幅木の板厚方向への撓み変形が可及的に抑制され、該幅木がより安定的に設置方向状態されることになり、延いては、上記幅木による落下防止効果がさらに向上する。  (D) In the fourth invention of the present application, the following specific effects are obtained in addition to the effects described in the above (c). That is, in the present invention, when the skirting board is the skirting board according to the second invention of the present application, since the concave streak portion is brought into contact with or close to the support, The bending deformation of the wooden board in the thickness direction is suppressed as much as possible, and the skirting board is placed in the installation direction more stably. As a result, the drop prevention effect of the skirting board is further improved.

本願発明の実施形態に係る幅木の全体斜視図である。  1 is an overall perspective view of a baseboard according to an embodiment of the present invention. 図１に示した幅木を仮設足場に設置した状態を示す側面図である。  FIG. 2 is a side view showing a state where the baseboard shown in FIG. 1 is installed on a temporary scaffold. 図２のＡ−Ａ矢視図である。  FIG. 3 is a view taken along the line AA in FIG. 2.

以下、本願発明を好適な状態に基づいて具体的に説明する。  Hereinafter, the present invention will be specifically described based on a preferable state.

「幅木１の構造」
図１には、本願発明の実施形態に係る幅木１を示している。この幅木１は、所定長さの薄い金属帯板（例えば、高張力鋼薄板）を、その帯長方向に折曲して構成されるものであって、この実施形態では後述するように、帯板を帯幅方向の６位置で表裏両側へ交互に折曲し、帯幅方向の一方の縁部１ａ寄りに位置する第１平面部１１と、帯幅方向の他方の縁部１ｂ寄りに位置する第２平面部１２を設けるとともに、これら第１平面部１１と第２平面部１２の間の中間部分には、上記第１平面部１１側から上記第２平面部１２側へ膨出する略台形状断面もつ凸条部１３と、上記第２平面部１２側から上記第１平面部１１側へ膨出する略台形状断面もつ凹条部１４を連設している。"Structure of baseboard 1"
FIG. 1 shows a skirting board 1 according to an embodiment of the present invention. The skirting board 1 is configured by bending a thin metal strip (for example, a high-tensile steel sheet) having a predetermined length in the strip length direction. In this embodiment, as described later, The band plate is alternately bent to the front and back sides at six positions in the band width direction, and the first flat portion 11 located near one edge 1a in the band width direction and the other near the other edge 1b in the band width direction. A second flat portion 12 is provided, and an intermediate portion between the first flat portion 11 and the second flat portion 12 swells from the first flat portion 11 to the second flat portion 12. A ridge 13 having a substantially trapezoidal cross section and a concave ridge 14 having a substantially trapezoidal cross section bulging from the second plane portion 12 toward the first plane portion 11 are provided in series.

このように上記凸条部１３と凹条部１４を設けた結果、上記第１平面部１１と第２平面部１２は、板厚方向に所定間隔をもって平行に延設される。ここで、この第１平面部１１と第２平面部１２の平行離間寸法は、後述のように上記幅木１の設置状態においてその内側に布板５の掛止フック６を位置させるために必要な寸法であって、該布板５の形状寸法とか、該布板５の上記支柱２からの離間距離等を勘案して決定されるものであり、この実施形態では６５ｍｍ程度を想定している。また、この場合、上記凸条部１３の頂面部１３ａは上記第２平面部１２の延長上に、上記凹条部１４の底面部１４ａは上記第１平面部１１の延長上に、それぞれ位置するようにしている。  As a result of the provision of the protruding ridges 13 and the concave ridges 14 as described above, the first flat portion 11 and the second flat portion 12 extend in parallel with a predetermined interval in the plate thickness direction. Here, the parallel separation dimension between the first flat portion 11 and the second flat portion 12 is necessary for positioning the hook 6 of the cloth plate 5 inside the baseboard 1 in the installed state of the baseboard 1 as described later. This is determined in consideration of the shape and size of the cloth plate 5 and the distance between the cloth plate 5 and the support column 2 and the like. In this embodiment, about 65 mm is assumed. . Also, in this case, the top surface 13a of the convex ridge 13 is located on the extension of the second flat portion 12, and the bottom surface 14a of the concave ridge 14 is located on the extension of the first flat portion 11, respectively. Like that.

また、上記幅木１の両端１ｃ、１ｄ寄りの上記凹条部１４の底面部１４ａには、該幅木１の長手方向に長軸をもつ長穴１５がそれぞれ設けられている。この長穴１５は、例えば、複数の幅木１をその端部同士を重ね合わせた状態で連設する場合の重ね合わせ量の調整とか、該幅木１の端部１ｃ、１ｄを策体によって拘引する場合の索掛止部等として利用される。  In addition, elongated holes 15 having a major axis in the longitudinal direction of the skirting board 1 are provided in the bottom surface 14a of the concave strip 14 near both ends 1c and 1d of the skirting board 1, respectively. The long hole 15 is formed by, for example, adjusting the amount of superposition when a plurality of skirting boards 1 are connected in a state where their ends are overlapped with each other, or by adjusting the end portions 1c and 1d of the skirting board 1 with a stylus. It is used as a hooking part or the like when being detained.

上記幅木１は、後述のように、その端部を支柱２に直接固定するものではなく、該支柱２の前面に当接あるいは近接対向状態で固定されるものであって、上記支柱２のスパーンによってその長さが制約されるものではなく、任意に設定できるものであり、この実施形態では、４０００ｍｍ、３０００ｍｍ、２０００ｍｍ、１５００ｍｍ、１０００ｍｍの長さを想定している。  As will be described later, the baseboard 1 is not fixed to the end of the support 2 directly, but is fixed to the front surface of the support 2 in an abutting or close-to-close state. The length is not limited by the span and can be set arbitrarily. In this embodiment, lengths of 4000 mm, 3000 mm, 2000 mm, 1500 mm, and 1000 mm are assumed.

「幅木１の設置構造」
以下、上記幅木１の仮設足場Ｚへの設置構造を説明する。"Installation structure of baseboard 1"
Hereinafter, the installation structure of the baseboard 1 on the temporary scaffold Z will be described.

上記仮設足場Ｚは、いわゆるクサビ式足場であって、所定スパーンで立設された複数の支柱２を、該支柱２に設けた連結台８部分においてつなぎ材４によって順次連結して支柱群を構成している。このような支柱群を所定間隔で前後に対向配置（一方の支柱群のみ図示し、他方の支柱群の図示は省略）するとともに、一方の支柱群の各支柱２と、他方の支柱群の各支柱２を、上記各支柱２の連結台８部分においてつなぎ材３によって連結して略梯子状形体とする。なお、符号７は、上記支柱２と各つなぎ材３及びつなぎ材４の端部を連結するクサビである。  The temporary scaffold Z is a so-called wedge-type scaffold, and a plurality of struts 2 erected by a predetermined span is sequentially connected by a connecting member 4 at a connecting stand 8 provided on the strut 2 to form a strut group. are doing. Such strut groups are arranged in front and back at a predetermined interval (only one strut group is shown, and the other strut group is not shown), and each strut 2 of one strut group and each strut 2 of the other strut group are arranged. The struts 2 are connected to each other by connecting members 3 at connecting portions 8 of the struts 2 to form a substantially ladder-like shape. In addition, reference numeral 7 denotes a wedge that connects the support column 2 with the ends of the connecting members 3 and the connecting members 4.

さらに、隣接する上記各つなぎ材３間に布板５を配置し、その各端部の左右両側にそれぞれ設けた掛止フック６を上記つなぎ材３に掛止させることで固定する。なお、上記つなぎ材３には、その左右両側から上記布板５の掛止フック６がそれぞれ掛止されるが、その場合、これら二つの布板５の各掛止フック６同士の干渉を避けるため、該各布板５を前後方向（上記つなぎ材３の軸方向）に所定量だけ偏移させている。  Further, the cloth plate 5 is disposed between the adjacent connecting members 3, and the hooks 6 provided on the right and left sides of each end thereof are fixed to the connecting members 3 by being hooked to the connecting members 3. In addition, the hooks 6 of the cloth plate 5 are respectively hooked to the connecting material 3 from both right and left sides thereof. In this case, interference between the hooks 6 of the two cloth plates 5 is avoided. Therefore, each cloth plate 5 is shifted by a predetermined amount in the front-rear direction (the axial direction of the connecting member 3).

この仮設足場Ｚの上記支柱２の内側に沿った略鉛直面と上記つなぎ材３の上面に沿った略水平面が交差するコーナ状の仮想領域に上記幅木１が設置される。  The baseboard 1 is installed in a corner-shaped virtual area where a substantially vertical plane along the inside of the support column 2 of the temporary scaffold Z and a substantially horizontal plane along the upper surface of the connecting member 3 intersect.

即ち、図２及び図３に示すように、上記幅木１を、その第１平面部１１側を上側に、上記第２平面部１２側を下側にした姿勢で、上記仮想領域に配置する。そして、上記第１平面部１１は、上記支柱２に取り付けたクランプ９の掛止杆１０と上記支柱２の間に差し入れてこれを該支柱２の前面に衝合させる。一方、上記第２平面部１２の下端（即ち、上記幅木１の側縁１ｃ）は、該第２平面部１２と上記支柱２との間に、上記つなぎ材３を挟んでその両側に配置された一対の布板５の各掛止フック６を位置させた状態で、上記布板５の側縁上に当接させる。  That is, as shown in FIGS. 2 and 3, the skirting board 1 is arranged in the virtual area with the first plane portion 11 side up and the second plane portion 12 side down. . The first flat portion 11 is inserted between the retaining rod 10 of the clamp 9 attached to the support 2 and the support 2, and is brought into contact with the front surface of the support 2. On the other hand, the lower end of the second flat portion 12 (that is, the side edge 1c of the skirting board 1) is disposed between the second flat portion 12 and the support post 2 on both sides of the connecting member 3 therebetween. In a state where the respective hooks 6 of the pair of cloth plates 5 are located, the hooks 6 are brought into contact with the side edges of the cloth plate 5.

しかる後、上記支柱２に取付けたクランプ９を回動操作して、上記掛止杆１０によって上記第１平面部１１を上記支柱２側に押圧して固定保持する。なお、上記幅木１としては、上記支柱群の支柱スパーンより大きい長さの幅木１が用いられることから、該幅木１は必ず２本以上の支柱２に対応することになり、これら各支柱２においてそれぞれ上記クランプ９によって固定保持される。  Thereafter, the clamp 9 attached to the column 2 is rotated, and the first flat portion 11 is pressed toward the column 2 by the latching rod 10 to be fixed and held. In addition, since the skirting board 1 having a length longer than the support span of the support group is used as the skirting board 1, the skirting board 1 always corresponds to two or more supports 2, Each of the columns 2 is fixed and held by the clamp 9.

上記幅木１の設置作業は、上記仮設足場Ｚの長さに応じて、複数回繰り返される。即ち、先行して設置された幅木１の端部に、次の幅木１の端部を所定寸法ずつ重ね合わせて設置する作業を、上記仮設足場Ｚの長さに応じた回数だけ繰り返すことで、該仮設足場Ｚ側への上記幅木１の設置作業が完了する。  The installation work of the baseboard 1 is repeated a plurality of times according to the length of the temporary scaffold Z. That is, the work of superposing the end of the next skirting board 1 on the end of the previously installed skirting board 1 by a predetermined size and installing the same is repeated a number of times corresponding to the length of the temporary scaffold Z. Thus, the installation work of the baseboard 1 on the temporary scaffold Z side is completed.

以上のようにして上記幅木１を上記仮設足場Ｚに設置することで、以下のような特有の作用効果が得られる。  By installing the baseboard 1 on the temporary scaffold Z as described above, the following specific operation and effect can be obtained.

（１）上記幅木１を、上記支柱群の少なくとも隣接する２本の支柱にまたがって配置し、上記支柱２に取付けたクランプ９によって該支柱２に引き付けて固定する構成であることから、上記幅木１の長さ寸法は支柱スパーンに制約されることなく設定することができ、より少ない種類（長さ）の幅木１を用意しておけば足り、例えば、従来のように支柱スパーンに対応させる必要がなく、それだけ経済性が向上し、延いてはより安価に幅木１を提供できる．(1) The skirting board 1 is arranged so as to straddle at least two adjacent columns of the column group, and is attracted and fixed to the column 2 by a clamp 9 attached to the column 2. The length of the skirting board 1 can be set without being restricted by the supporting span, and it is sufficient to prepare a smaller type (length) of the skirting board 1, for example, as in the conventional case. There is no need to cope with this, so that the economic efficiency is improved and the baseboard 1 can be provided at a lower cost.

（２）上記幅木１の上記第１平面部１１はこれを上記布板５の掛止フック６よりも布板中心寄りに位置させた状態で、その端面１ｂを上記布板５の上面に載置させるようにしていることから、上記掛止フック６の存在によって上記幅木１の設置が制約されることが無いことから、従来のように、上記支柱２に対応する部分においても上記幅木１の一部を切り欠くような必要が無く、したがって、上記布板５の端縁と上記幅木１との間に隙間が生じず、上記幅木１による落下防止効果が格段に向上する。(2) When the first flat portion 11 of the baseboard 1 is positioned closer to the center of the cloth board than the hook 6 of the cloth board 5, the end face 1 b is placed on the upper surface of the cloth board 5. Since the mounting is performed, the installation of the skirting board 1 is not restricted by the presence of the locking hooks 6. There is no need to cut out a part of the tree 1, so that no gap is formed between the edge of the cloth board 5 and the baseboard 1, and the drop prevention effect of the baseboard 1 is significantly improved. .

（３）上記幅木１の上記第２平面部１２は、これを上記布板５の上記掛止フック６よりも布板中心寄りに位置させた（換言すれば、該第２平面部１２と上記支柱２の間に上記掛止フック６を位置させた）ことから、該第２平面部１２によって、上記布板５の掛止フック６が布板中心寄りに移動するのを規制され、その結果、上記布板５と幅木１の間に隙間が生じるのが未然に防止され、延いては上記幅木１による落下防止効果がさらに向上する。(3) The second flat portion 12 of the skirting board 1 is located closer to the center of the cloth plate than the hooks 6 of the cloth plate 5 (in other words, the second flat portion 12 is Since the hook 6 is positioned between the columns 2), the second flat portion 12 restricts the movement of the hook 6 of the cloth plate 5 toward the center of the cloth plate. As a result, formation of a gap between the cloth board 5 and the skirting board 1 is prevented beforehand, and the drop prevention effect of the skirting board 1 is further improved.

上記幅木１が、上記第１平面部１１と第２平面部１２の間に、凸条部１３と凹条部１４を備え、該凸条部１３を上記支柱１に当接させるようにしているので、該幅木１の板厚方向への撓み変形が可及的に抑制され、該幅木１がより安定的に設置され、延いては、上記幅木１による落下防止効果がさらに向上する。  The baseboard 1 is provided with a ridge 13 and a recess 14 between the first plane 11 and the second plane 12, so that the ridge 13 abuts on the support 1. Therefore, bending deformation of the skirting board 1 in the thickness direction is suppressed as much as possible, so that the skirting board 1 is more stably installed, and furthermore, the drop prevention effect of the skirting board 1 is further improved. I do.

本願発明に係る幅木及び幅木設置構造は、建築足場分野において広く利用されるものである。  The baseboard and the baseboard installation structure according to the present invention are widely used in the field of architectural scaffolds.

１ ・・幅木
２ ・・支柱
３ ・・つなぎ材
４ ・・つなぎ材
５ ・・布板
６ ・・掛止フック
７ ・・クサビ
８ ・・連結台
９ ・・クランプ
１０ ・・掛止杆
１１ ・・第１平面部
１２ ・・第２平面部
１３ ・・凸条部
１４ ・・凹条部
１５ ・・長穴DESCRIPTION OF SYMBOLS 1 ... Baseboard 2 ... Support 3 ... Connecting material 4 ... Connecting material 5 ... Cloth plate 6 ... Hook 7 ... Wedge 8 ... Connection table 9 ... Clamp 10 ... Hanging rod 11 ..First flat portion 12 ..Second flat portion 13 ..Convex ridge 14 ..Concave ridge 15 ..Elongated hole

本願発明は、仮設足場に設置される幅木及び該幅木の設置構造に関するものである。  The present invention relates to a skirting board installed on a temporary scaffold and an installation structure of the skirting board.

土木・建築の工事現場において設置される架設足場においては、布板等の作業床からの人とか作業工具等の落下防止を図るべく、該布板の縁部に幅木を設けることが法定されており、これに応えるものとして従来から種々構造の幅木及びその設置構造が提案されている（例えば、特許文献１〜３参照）。  In a construction scaffold installed at a construction site of civil engineering and construction, it is legally required to provide a baseboard at an edge of the work board in order to prevent falling of a person or a work tool from a work floor such as a work board. In order to respond to this, various types of skirting boards and their installation structures have been conventionally proposed (for example, see Patent Documents 1 to 3).

特許文献１に示されるものは、木製の幅木を用いるもので、支柱の前面に当接状態で立てて配置した幅木の下端縁を、前後の支柱間に配置されたつなぎ材上に載置するとともに、該幅木の上端縁側を、上記支柱に取付けたフック状の保持手段によって固定するようにしている。この場合、隣接する横材間に跨って掛止された布板及びその掛止フックは上記幅木よりも足場面中心寄りに位置しており、上記幅木とは非連係とされている。  The thing shown in patent document 1 uses a wooden skirting board, and mounts the lower end edge of the skirting board which stood upright on the front surface of a support | pillar on the connecting material arrange | positioned between front and back support | pillars. At the same time, the upper edge side of the skirting board is fixed by a hook-shaped holding means attached to the support. In this case, the cloth board hung over the adjacent cross members and the hooks thereof are located closer to the center of the foot scene than the skirting board, and are not linked to the skirting board.

特許文献２に示されるものは、帯板材で構成される幅木を用いたもので、該幅木の長さを隣接する一対の支柱間の間隔（スパーン）に対応させるとともに、その長手方向の左右両端部にそれぞれ弾発タイプのブラケットを取り付けてある。そして、上記幅木の下端縁を布板の上面に乗せた状態で、該幅木を上記左右のブラケットによって隣接する支柱に固定するようになっている。  The thing shown in patent document 2 uses the skirting board which consists of a strip board material, and makes the length of this skirting board correspond to the space | interval (span) between a pair of adjacent support | pillars, and the longitudinal direction A spring type bracket is attached to each of the left and right ends. Then, with the lower edge of the skirting board placed on the upper surface of the cloth board, the skirting board is fixed to an adjacent column by the left and right brackets.

特許文献４に示されるものは、略Ｌ形の断面形状をもつ屈曲板状の幅木を用いたもので、該幅木の長さを隣接する一対の支柱の間隔寸法に対応させて設定している。そして、この幅木を、上記一対の支柱間に跨って配置し、その下端側の平面部と布板の縁部に乗せてこれを支持させるとともに、他方の縁部は上記支柱に接触させた状態で、該支柱側に設けた取付金具にロックピンによって固定するようにしている。  The technique disclosed in Patent Document 4 uses a bent plate-shaped skirting board having a substantially L-shaped cross-section, and the length of the skirting board is set in accordance with the distance between a pair of adjacent columns. ing. Then, this skirting board was disposed across the pair of columns, and was placed on and supported the flat portion on the lower end side and the edge of the cloth plate, and the other edge was in contact with the column. In this state, it is fixed to a mounting bracket provided on the column by a lock pin.

特開２０１０−２７５８０９号公報JP 2010-275809 A 特開２００３−２１３９２７号公報JP 2003-213927 A 特開２００４−６０１６７号公報JP 2004-60167 A

ところが、これら各特許文献に示されるものにおいては、以下のような問題がある。  However, those disclosed in these patent documents have the following problems.

特許文献１に示されるものでは、幅木を足場のつなぎ材上に載置する構成であることから、該つなぎ材に掛止された布板のフックを避ける必要があり、そのため該幅木と上記布板の間に該幅木の長さ方向に延びる隙間が必然的に生じ、例えばこの隙間の幅を法定寸法内に維持することが難しい場合もあり、安全確保上、万全とは言い難いものである。  In the structure disclosed in Patent Document 1, since the skirting board is placed on the connecting material of the scaffold, it is necessary to avoid the hook of the cloth plate hooked on the connecting material, and therefore, A gap extending in the length direction of the skirting board is inevitably generated between the cloth boards. For example, it may be difficult to maintain the width of the gap within legal dimensions. is there.

特許文献２に示されるものでは、幅木の両端をブラケットによって支柱に固定する構成であることから、該幅木はその長さ寸法が上記支柱のスパーン、あるいは上記布板の長さ寸法に対応して決定されるので、例えば、幅木として、布板の長さに対応する毎に複数種類用意する必要があり、不経済である。  In the structure disclosed in Patent Document 2, since the both ends of the skirting board are fixed to the pillars by brackets, the length of the skirting board corresponds to the span of the pillars or the length of the cloth plate. Therefore, for example, it is necessary to prepare a plurality of types of skirting boards each corresponding to the length of the cloth board, which is uneconomical.

また、この幅木は、その下端を布板の上面に預けた状態で設置されることから、該幅木の下端と布板のフックとの干渉を避ける必要があり、そのため布板の両端部の下端側には切欠きが設けられていることから、この切欠き部分においては下方に臨む開口が生じ、この部分からの作業工具の小物類が落下するおそれがあり、安全確保上、万全とは言い難いものである。  In addition, since the baseboard is installed with its lower end left on the upper surface of the cloth board, it is necessary to avoid interference between the lower end of the baseboard and the hooks of the cloth board. Since a notch is provided on the lower end side, an opening facing downward occurs in this notch, and there is a possibility that small items of the work tool may fall from this part, and in order to ensure safety, it is not perfect. It is hard to say.

さらに、上記幅木が上記布板のフックとの干渉を避けるようにしていることから、該幅木は上記布板の幅方向（つなぎ材の長手方向）への移動を規制する機能をもたず、場合によっては上記布板が幅方向に位置ズレし、該布板の長辺側の縁部と上記幅木との間に法定寸法以上の隙間ができることも考えられ、安全性確保の観点から好ましくない。  Further, since the skirting board avoids interference with the hooks of the cloth board, the skirting board has a function of restricting movement of the cloth board in the width direction (longitudinal direction of the joining material). In some cases, the cloth board may be misaligned in the width direction, and a gap larger than the legal size may be formed between the edge on the long side of the cloth board and the skirting board. Is not preferred.

特許文献３に示されるものでは、幅木の両端を支柱に設けた取付金具とここに取付けられるロックピンによって固定する構成であることから、該幅木はその長さ寸法が上記支柱のスパーン、あるいは上記布板の長さ寸法に対応して決定されるので、例えば、幅木として、布板の長さに対応する毎に複数種類用意する必要があり、不経済である。  Patent Literature 3 discloses a configuration in which both ends of a skirting board are fixed by a mounting bracket provided on a pillar and a lock pin attached thereto, so that the skirting board has a span length of the above-described pillar, Alternatively, since it is determined according to the length dimension of the cloth board, for example, it is necessary to prepare a plurality of types of baseboards corresponding to the length of the cloth board, which is uneconomical.

また、この幅木は、Ｌ形に折曲形成された平板状の下端部を布板の上面に預けた状態で設置されることから、該幅木の下端部と布板のフックとの干渉を避ける必要があり、そのため布板の両端部には切欠きが設けられており、この切欠き部分においては下方に臨む開口が生じ、この部分からの作業工具の小物類が落下するおそれがあり、安全確保上、万全とは言い難いものである。  Further, since the baseboard is installed in a state where the lower end of a flat plate bent in an L shape is deposited on the upper surface of the cloth board, interference between the lower end of the baseboard and the hook of the cloth board is prevented. It is necessary to avoid it, so notches are provided at both ends of the cloth plate, an opening facing downward occurs in this notch part, there is a risk that small items of the work tool may fall from this part, It is hard to say that it is perfect for ensuring safety.

さらに、上記幅木が上記布板のフックとの干渉を避けるようにしていることから、該幅木は上記布板の幅方向（つなぎ材の長手方向）への移動を規制する機能をもたず、場合によっては上記布板が幅方向に位置ズレし、該布板の長辺側の縁部と上記幅木との間に法定寸法以上の隙間ができることも考えられ、安全性確保の観点から好ましくない。  Further, since the skirting board avoids interference with the hooks of the cloth board, the skirting board has a function of restricting movement of the cloth board in the width direction (longitudinal direction of the joining material). In some cases, the cloth board may be misaligned in the width direction, and a gap larger than the legal size may be formed between the edge on the long side of the cloth board and the skirting board. Is not preferred.

そこで本願発明は、安全確保機能に優れ、しかも経済的にも有利な幅木及び幅木の設置構造を提案することを目的としてなされたものである。  Then, this invention is made for the purpose of proposing the baseboard and the installation structure of the baseboard which are excellent in the safety ensuring function, and are also economically advantageous.

本願の第１の発明は、所定長さの帯板材をその帯長方向に折曲してなる幅木において、少なくとも帯幅方向の一方の端縁側と他方の端縁側がそれぞれ帯長方向に延びる平面部とされ、且つこれら該両平面部が板厚方向に所定間隔をもって平行に延出するとともに、上記両平面部の中間部分を、該両平面部間の高低差の範囲内において上記一方の平面部側から他方の平面部側に膨出して帯長方向に延設された凸条部と他方の平面部から一方の平面部側へ膨出して帯長方向に延設された凹条部としたことを特徴としている。According to a first aspect of the present invention, in a skirting board formed by bending a strip of a predetermined length in the strip length direction, at least one edge side and the other edge side in the strip width direction respectively extend in the strip length direction. A flat portion , and the two flat portions extend in parallel with a predetermined interval in the plate thickness direction, and an intermediate portion between the two flat portions is provided with the one of the two flat portions within a range of a height difference between the two flat portions. A convex ridge bulging from the flat surface side to the other flat surface side and extending in the belt length direction, and a concave ridge bulging from the other flat surface portion to the one flat surface side and extending in the belt length direction. It is characterized in that the content was.

本願の第２の発明では、請求項１に記載の幅木を足場上に設置するための設置構造であって、所定間隔で複数の支柱を列設してなる前後一対の支柱群を、所定間隔をもって略平行に設置するとともに、一方の支柱群の各支柱とこれに対向する他方の支柱群の各支柱をそれぞれつなぎ材で連結して略梯子状形体とするとともに、隣接するつなぎ材間に布板を配置してその各端部の左右両側に設けた掛止フックをそれぞれ上記つなぎ材に掛止させて成る足場において、上記幅木を、上記一方の支柱群の少なくとも隣接する２本の支柱にまたがって配置し、該幅木の一方の平面部を上記支柱に接触又は近接対向させる一方、他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させた状態でその端面を上記布板の上面に載置又は近接対向させるとともに、上記凹条部を上記支柱に接触又は近接対向させ、この状態で、上記支柱に取付けたクランプによって上記一方の平面部を該支柱に引き付けて固定することを特徴としている。According to a second aspect of the present invention, there is provided an installation structure for installing the skirting board according to claim 1 on a scaffold, wherein a pair of front and rear support groups each including a plurality of support columns arranged at predetermined intervals are provided. Installed in substantially parallel with an interval, each strut of one strut group and each strut of the other strut group opposing it are connected with a connecting material to form a substantially ladder-like shape, and between adjacent connecting materials. In a scaffold having a cloth board disposed thereon and hooks provided on both left and right sides of each end thereof respectively hooked on the connecting material, the baseboard is connected to at least two adjacent ones of the one pillar group. The skirting board is disposed so as to straddle the strut, and one flat portion of the skirting board is brought into contact with or close to the strut, while the other flat portion is positioned closer to the center of the cloth plate than the hooks of the cloth plate. With the end face on the upper surface of the cloth plate Closely facing the so Rutotomoni, the concave portion into contact with or close facing the strut, in this state, is characterized by securing attract the flat portion of one above the strut by a clamp attached to the support column.

本願の第４の発明では、上記第３の発明において、上記幅木が請求項２に記載の幅木である場合にあっては、上記凹条部を上記支柱に当接又は近接対向させることを特徴としている。  In the fourth invention of the present application, in the third invention, when the skirting board is the skirting board according to the second aspect, the concave ridge portion is brought into contact with or close to the support column. It is characterized by.

（ａ） 本願の第１の発明では、所定長さの帯板材をその帯長方向に折曲してなる幅木において、少なくとの帯幅方向の一方の端縁側と他方の端縁側がそれぞれ帯長方向に延びる平面部とされるとともに、これら該両平面部が板厚方向に所定間隔をもって平行に延出するように構成したので、該幅木はその構造が極めて簡単であり、これをより安価に提供できる。  (A) In the first invention of the present application, in a skirting board formed by bending a strip of a predetermined length in the strip length direction, at least one end side and the other end side in the strip width direction are respectively provided. The skirting board has a very simple structure because it has a flat portion extending in the band length direction and the two flat portions are configured to extend in parallel with a predetermined interval in the plate thickness direction. It can be provided at a lower cost.

さらに、上記両平面部の中間部分を、該両平面部間の高低差の範囲内において上記一方の平面部側から他方の平面部側に膨出して帯長方向に延設された凸条部と他方の平面部から一方の平面部側へ膨出して帯長方向に延設された凹条部としたので、該凸条部と凹条部によって上記幅木の板厚方向における曲げ剛性が高められ、該幅木を仮設足場に設置した場合における強度性能が高く、それだけ該幅木を備えたことによる仮設足場の安全性が向上する。 Further, the intermediate portion between the two flat portions, the ridge portion bulging from the one flat portion side to the other flat portion side and extending in the belt length direction within a range of a height difference between the two flat portions. And the convex portion and the concave portion extending in the belt length direction from the other planar portion to the one planar portion side, the bending rigidity in the thickness direction of the skirting board by the convex portion and the concave portion. The strength performance when the skirting board is installed on a temporary scaffold is high, and the safety of the temporary scaffolding provided with the skirting board improves accordingly.

（ｂ）本願の第２の発明では、上記第１の発明に係る幅木を足場上に設置するための設置構造であって、所定間隔で複数の支柱を列設してなる前後一対の支柱群を、所定間隔をもって略平行に設置するとともに、一方の支柱群の各支柱とこれに対向する他方の支柱群の各支柱をそれぞれつなぎ材で連結して略梯子状形体とするとともに、隣接するつなぎ材間に布板を配置してその各端部の左右両側に設けた掛止フックをそれぞれ上記つなぎ材に掛止させて成る足場において、上記幅木を、上記一方の支柱群の少なくとも隣接する２本の支柱にまたがって配置し、該幅木の一方の平面部を上記支柱に接触又は近接対向させる一方、他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させた状態でその端面を上記布板の上面に載置又は近接対向させるとともに、上記凹条部を上記支柱に接触又は近接対向させ、この状態で、上記支柱に取付けたクランプによって上記一方の平面部を該支柱に引き付けて固定するようにしている。 (B) The second invention of the present application is an installation structure for installing the skirting board according to the first invention on a scaffold, and a pair of front and rear struts formed by arranging a plurality of struts at predetermined intervals. The groups are installed substantially in parallel with a predetermined interval, and the columns of one column group and the columns of the other column group opposing the column group are connected with a connecting material to form a substantially ladder-like shape, and are adjacent to each other. In a scaffold consisting of a cloth board disposed between the connecting members and hooks provided on both right and left sides of each end thereof being respectively hooked to the connecting member, the baseboard is placed at least adjacent to the one of the columns. And one flat portion of the skirting board is brought into contact with or close to the support, while the other flat portion is positioned at the center of the cloth board more than the hooks of the cloth board. With the end face on the cloth board The置又mounting in closely opposed is not Rutotomoni, the concave portion into contact with or close facing the strut, in this state, so as to attract and immobilize the flat portion of one above the strut by a clamp attached to the support column ing.

したがって、
（ｂ−１） 上記幅木を、上記一方の支柱群の少なくとも隣接する２本の支柱にまたがって配置し、上記支柱に取付けたクランプによって上記一方の平面部を該支柱に引き付けて固定する構成であることから（即ち、各支柱の位置において、ここに対応している上記幅木の対応部位を上記支柱に取付けたクランプによって固定すれば良いことから）、上記幅木の長さ寸法は上記支柱群の各支柱の間隔（スパーン）に制約されることなく設定することができ、その汎用性が高められ、より少ない種類（長さ）の幅木を用意しておけば足り、例えば、従来のように一対の支柱の間隔、即ち、布板の長さ寸法に対応させる必要がなく、それだけ経済性が向上し、延いてはより安価に幅木を提供できる、
（ｂ−２） 上記幅木の上記他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させた状態で、その端面を上記布板の上面に載置又は近接対向させるようにしていることから、上記掛止フックの存在によって上記幅木の設置が制約されることが無く、したがって、例えば、上記支柱に対応する部分においても従来のように上記幅木の一部を切り欠く必要が無く、この結果、上記布板の端縁と上記幅木との間に隙間が生じず、上記幅木による落下防止効果が格段に向上する、
（ｂ−３） 上記幅木の上記他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させたことから、該他方の平面部は、上記布板の掛止フックが布板中心寄りに移動するのを規制するごとく機能し、これによって上記布板と幅木の間に隙間が生じるのが未然に防止され、延いては上記幅木による落下防止効果がさらに向上する、
（ｂ−４） また、上記凹条部を上記支柱に当接又は近接対向させるようにしているので、該幅木の板厚方向への撓み変形が可及的に抑制され、該幅木がより安定的に設置方向状態されることになり、延いては、上記幅木による落下防止効果がさらに向上する、
等の効果が得られる。Therefore,
(B-1) A configuration in which the skirting board is arranged so as to straddle at least two adjacent columns of the one column group, and the one flat portion is attracted and fixed to the column by a clamp attached to the column. (That is, at the position of each strut, the corresponding portion of the skirting board corresponding thereto may be fixed by a clamp attached to the stanchion), so the length dimension of the skirting board is It can be set without being restricted by the interval (span) between each strut of the strut group, its versatility is enhanced, and it is sufficient to prepare a smaller type (length) of baseboard, for example, It is not necessary to correspond to the distance between the pair of columns, that is, the length of the cloth board, so that the economic efficiency is improved and the baseboard can be provided at a lower cost.
(B-2) The other flat surface portion of the baseboard is placed closer to the center of the cloth plate than the hooks of the cloth plate, and the end face is placed on the upper surface of the cloth plate or Due to the close proximity, the installation of the skirting board is not restricted by the presence of the hooks. Therefore, for example, even in a portion corresponding to the support, There is no need to cut out a part, as a result, no gap is generated between the edge of the cloth board and the skirting board, and the drop prevention effect by the skirting board is significantly improved.
(B-3) Since the other flat portion of the skirting board is located closer to the center of the cloth plate than the hooks of the cloth plate, the other flat portion is formed by the hook of the cloth plate. Acts as if the stop hook is controlled to move toward the center of the cloth board, thereby preventing a gap from being generated between the cloth board and the baseboard, thereby further improving the drop prevention effect of the baseboard. Do
(B-4) Further , since the concave ridge portion is brought into contact with or close to the column, bending deformation in the board thickness direction of the skirting board is suppressed as much as possible, and the skirting board is formed. would be more stably installation direction state, and by extension, you further improve fall-preventing effect by the skirting,
And the like.

本願発明の実施形態に係る幅木の全体斜視図である。  1 is an overall perspective view of a baseboard according to an embodiment of the present invention. 図１に示した幅木を仮設足場に設置した状態を示す側面図である。  FIG. 2 is a side view showing a state where the baseboard shown in FIG. 1 is installed on a temporary scaffold. 図２のＡ−Ａ矢視図である。  FIG. 3 is a view taken along the line AA in FIG. 2.

以下、本願発明を好適な状態に基づいて具体的に説明する。  Hereinafter, the present invention will be specifically described based on a preferable state.

「幅木１の構造」
図１には、本願発明の実施形態に係る幅木１を示している。この幅木１は、所定長さの薄い金属帯板（例えば、高張力鋼薄板）を、その帯長方向に折曲して構成されるものであって、この実施形態では後述するように、帯板を帯幅方向の６位置で表裏両側へ交互に折曲し、帯幅方向の一方の縁部１ａ寄りに位置する第１平面部１１と、帯幅方向の他方の縁部１ｂ寄りに位置する第２平面部１２を設けるとともに、これら第１平面部１１と第２平面部１２の間の中間部分には、上記第１平面部１１側から上記第２平面部１２側へ膨出する略台形状断面もつ凸条部１３と、上記第２平面部１２側から上記第１平面部１１側へ膨出する略台形状断面もつ凹条部１４を連設している。"Structure of baseboard 1"
FIG. 1 shows a skirting board 1 according to an embodiment of the present invention. The skirting board 1 is configured by bending a thin metal strip (for example, a high-tensile steel sheet) having a predetermined length in the strip length direction. In this embodiment, as described later, The band plate is alternately bent to the front and back sides at six positions in the band width direction, and the first flat portion 11 located near one edge 1a in the band width direction and the other near the other edge 1b in the band width direction. A second flat portion 12 is provided, and an intermediate portion between the first flat portion 11 and the second flat portion 12 swells from the first flat portion 11 to the second flat portion 12. A ridge 13 having a substantially trapezoidal cross section and a concave ridge 14 having a substantially trapezoidal cross section bulging from the second plane portion 12 toward the first plane portion 11 are provided in series.

このように上記凸条部１３と凹条部１４を設けた結果、上記第１平面部１１と第２平面部１２は、板厚方向に所定間隔をもって平行に延設される。ここで、この第１平面部１１と第２平面部１２の平行離間寸法は、後述のように上記幅木１の設置状態においてその内側に布板５の掛止フック６を位置させるために必要な寸法であって、該布板５の形状寸法とか、該布板５の上記支柱２からの離間距離等を勘案して決定されるものであり、この実施形態では６５ｍｍ程度を想定している。また、この場合、上記凸条部１３の頂面部１３ａは上記第２平面部１２の延長上に、上記凹条部１４の底面部１４ａは上記第１平面部１１の延長上に、それぞれ位置するようにしている。  As a result of the provision of the protruding ridges 13 and the concave ridges 14 as described above, the first flat portion 11 and the second flat portion 12 extend in parallel with a predetermined interval in the plate thickness direction. Here, the parallel separation dimension between the first flat portion 11 and the second flat portion 12 is necessary for positioning the hook 6 of the cloth plate 5 inside the baseboard 1 in the installed state of the baseboard 1 as described later. This is determined in consideration of the shape and size of the cloth plate 5 and the distance between the cloth plate 5 and the support column 2 and the like. In this embodiment, about 65 mm is assumed. . Also, in this case, the top surface 13a of the convex ridge 13 is located on the extension of the second flat portion 12, and the bottom surface 14a of the concave ridge 14 is located on the extension of the first flat portion 11, respectively. Like that.

また、上記幅木１の両端１ｃ、１ｄ寄りの上記凹条部１４の底面部１４ａには、該幅木１の長手方向に長軸をもつ長穴１５がそれぞれ設けられている。この長穴１５は、例えば、複数の幅木１をその端部同士を重ね合わせた状態で連設する場合の重ね合わせ量の調整とか、該幅木１の端部１ｃ、１ｄを策体によって拘引する場合の索掛止部等として利用される。  In addition, elongated holes 15 having a major axis in the longitudinal direction of the skirting board 1 are provided in the bottom surface 14a of the concave strip 14 near both ends 1c and 1d of the skirting board 1, respectively. The long hole 15 is formed by, for example, adjusting the amount of superposition when a plurality of skirting boards 1 are connected in a state where their ends are overlapped with each other, or by adjusting the end portions 1c and 1d of the skirting board 1 with a stylus. It is used as a hooking part or the like when being detained.

上記幅木１は、後述のように、その端部を支柱２に直接固定するものではなく、該支柱２の前面に当接あるいは近接対向状態で固定されるものであって、上記支柱２のスパーンによってその長さが制約されるものではなく、任意に設定できるものであり、この実施形態では、４０００ｍｍ、３０００ｍｍ、２０００ｍｍ、１５００ｍｍ、１０００ｍｍの長さを想定している。  As will be described later, the baseboard 1 is not fixed to the end of the support 2 directly, but is fixed to the front surface of the support 2 in an abutting or close-to-close state. The length is not limited by the span and can be set arbitrarily. In this embodiment, lengths of 4000 mm, 3000 mm, 2000 mm, 1500 mm, and 1000 mm are assumed.

「幅木１の設置構造」
以下、上記幅木１の仮設足場Ｚへの設置構造を説明する。"Installation structure of baseboard 1"
Hereinafter, the installation structure of the baseboard 1 on the temporary scaffold Z will be described.

上記仮設足場Ｚは、いわゆるクサビ式足場であって、所定スパーンで立設された複数の支柱２を、該支柱２に設けた連結台８部分においてつなぎ材４によって順次連結して支柱群を構成している。このような支柱群を所定間隔で前後に対向配置（一方の支柱群のみ図示し、他方の支柱群の図示は省略）するとともに、一方の支柱群の各支柱２と、他方の支柱群の各支柱２を、上記各支柱２の連結台８部分においてつなぎ材３によって連結して略梯子状形体とする。なお、符号７は、上記支柱２と各つなぎ材３及びつなぎ材４の端部を連結するクサビである。  The temporary scaffold Z is a so-called wedge-type scaffold, and a plurality of struts 2 erected by a predetermined span is sequentially connected by a connecting member 4 at a connecting stand 8 provided on the strut 2 to form a strut group. are doing. Such strut groups are arranged in front and back at a predetermined interval (only one strut group is shown, and the other strut group is not shown), and each strut 2 of one strut group and each strut 2 of the other strut group are arranged. The struts 2 are connected to each other by connecting members 3 at connecting portions 8 of the struts 2 to form a substantially ladder-like shape. In addition, reference numeral 7 denotes a wedge that connects the support column 2 with the ends of the connecting members 3 and the connecting members 4.

さらに、隣接する上記各つなぎ材３間に布板５を配置し、その各端部の左右両側にそれぞれ設けた掛止フック６を上記つなぎ材３に掛止させることで固定する。なお、上記つなぎ材３には、その左右両側から上記布板５の掛止フック６がそれぞれ掛止されるが、その場合、これら二つの布板５の各掛止フック６同士の干渉を避けるため、該各布板５を前後方向（上記つなぎ材３の軸方向）に所定量だけ偏移させている。  Further, the cloth plate 5 is disposed between the adjacent connecting members 3, and the hooks 6 provided on the right and left sides of each end thereof are fixed to the connecting members 3 by being hooked to the connecting members 3. In addition, the hooks 6 of the cloth plate 5 are respectively hooked to the connecting material 3 from both right and left sides thereof. In this case, interference between the hooks 6 of the two cloth plates 5 is avoided. Therefore, each cloth plate 5 is shifted by a predetermined amount in the front-rear direction (the axial direction of the connecting member 3).

この仮設足場Ｚの上記支柱２の内側に沿った略鉛直面と上記つなぎ材３の上面に沿った略水平面が交差するコーナ状の仮想領域に上記幅木１が設置される。  The baseboard 1 is installed in a corner-shaped virtual area where a substantially vertical plane along the inside of the support column 2 of the temporary scaffold Z and a substantially horizontal plane along the upper surface of the connecting member 3 intersect.

即ち、図２及び図３に示すように、上記幅木１を、その第１平面部１１側を上側に、上記第２平面部１２側を下側にした姿勢で、上記仮想領域に配置する。そして、上記第１平面部１１は、上記支柱２に取り付けたクランプ９の掛止杆１０と上記支柱２の間に差し入れてこれを該支柱２の前面に衝合させる。一方、上記第２平面部１２の下端（即ち、上記幅木１の側縁１ｃ）は、該第２平面部１２と上記支柱２との間に、上記つなぎ材３を挟んでその両側に配置された一対の布板５の各掛止フック６を位置させた状態で、上記布板５の側縁上に当接させる。  That is, as shown in FIGS. 2 and 3, the skirting board 1 is arranged in the virtual area with the first plane portion 11 side up and the second plane portion 12 side down. . The first flat portion 11 is inserted between the retaining rod 10 of the clamp 9 attached to the support 2 and the support 2, and is brought into contact with the front surface of the support 2. On the other hand, the lower end of the second flat portion 12 (that is, the side edge 1c of the skirting board 1) is disposed between the second flat portion 12 and the support post 2 on both sides of the connecting member 3 therebetween. In a state where the respective hooks 6 of the pair of cloth plates 5 are located, the hooks 6 are brought into contact with the side edges of the cloth plate 5.

しかる後、上記支柱２に取付けたクランプ９を回動操作して、上記掛止杆１０によって上記第１平面部１１を上記支柱２側に押圧して固定保持する。なお、上記幅木１としては、上記支柱群の支柱スパーンより大きい長さの幅木１が用いられることから、該幅木１は必ず２本以上の支柱２に対応することになり、これら各支柱２においてそれぞれ上記クランプ９によって固定保持される。  Thereafter, the clamp 9 attached to the column 2 is rotated, and the first flat portion 11 is pressed toward the column 2 by the latching rod 10 to be fixed and held. In addition, since the skirting board 1 having a length longer than the support span of the support group is used as the skirting board 1, the skirting board 1 always corresponds to two or more supports 2, Each of the columns 2 is fixed and held by the clamp 9.

上記幅木１の設置作業は、上記仮設足場Ｚの長さに応じて、複数回繰り返される。即ち、先行して設置された幅木１の端部に、次の幅木１の端部を所定寸法ずつ重ね合わせて設置する作業を、上記仮設足場Ｚの長さに応じた回数だけ繰り返すことで、該仮設足場Ｚ側への上記幅木１の設置作業が完了する。  The installation work of the baseboard 1 is repeated a plurality of times according to the length of the temporary scaffold Z. That is, the work of superposing the end of the next skirting board 1 on the end of the previously installed skirting board 1 by a predetermined size and installing the same is repeated a number of times corresponding to the length of the temporary scaffold Z. Thus, the installation work of the baseboard 1 on the temporary scaffold Z side is completed.

以上のようにして上記幅木１を上記仮設足場Ｚに設置することで、以下のような特有の作用効果が得られる。  By installing the baseboard 1 on the temporary scaffold Z as described above, the following specific operation and effect can be obtained.

（１）上記幅木１を、上記支柱群の少なくとも隣接する２本の支柱にまたがって配置し、上記支柱２に取付けたクランプ９によって該支柱２に引き付けて固定する構成であることから、上記幅木１の長さ寸法は支柱スパーンに制約されることなく設定することができ、より少ない種類（長さ）の幅木１を用意しておけば足り、例えば、従来のように支柱スパーンに対応させる必要がなく、それだけ経済性が向上し、延いてはより安価に幅木１を提供できる．(1) The skirting board 1 is arranged so as to straddle at least two adjacent columns of the column group, and is attracted and fixed to the column 2 by a clamp 9 attached to the column 2. The length of the skirting board 1 can be set without being restricted by the supporting span, and it is sufficient to prepare a smaller type (length) of the skirting board 1, for example, as in the conventional case. There is no need to cope with this, so that the economic efficiency is improved and the baseboard 1 can be provided at a lower cost.

（２）上記幅木１の上記第１平面部１１はこれを上記布板５の掛止フック６よりも布板中心寄りに位置させた状態で、その端面１ｂを上記布板５の上面に載置させるようにしていることから、上記掛止フック６の存在によって上記幅木１の設置が制約されることが無いことから、従来のように、上記支柱２に対応する部分においても上記幅木１の一部を切り欠くような必要が無く、したがって、上記布板５の端縁と上記幅木１との間に隙間が生じず、上記幅木１による落下防止効果が格段に向上する。(2) When the first flat portion 11 of the baseboard 1 is positioned closer to the center of the cloth board than the hook 6 of the cloth board 5, the end face 1 b is placed on the upper surface of the cloth board 5. Since the mounting is performed, the installation of the skirting board 1 is not restricted by the presence of the locking hooks 6. There is no need to cut out a part of the tree 1, so that no gap is formed between the edge of the cloth board 5 and the baseboard 1, and the drop prevention effect of the baseboard 1 is significantly improved. .

（３）上記幅木１の上記第２平面部１２は、これを上記布板５の上記掛止フック６よりも布板中心寄りに位置させた（換言すれば、該第２平面部１２と上記支柱２の間に上記掛止フック６を位置させた）ことから、該第２平面部１２によって、上記布板５の掛止フック６が布板中心寄りに移動するのを規制され、その結果、上記布板５と幅木１の間に隙間が生じるのが未然に防止され、延いては上記幅木１による落下防止効果がさらに向上する。(3) The second flat portion 12 of the skirting board 1 is located closer to the center of the cloth plate than the hooks 6 of the cloth plate 5 (in other words, the second flat portion 12 is Since the hook 6 is positioned between the columns 2), the second flat portion 12 restricts the movement of the hook 6 of the cloth plate 5 toward the center of the cloth plate. As a result, formation of a gap between the cloth board 5 and the skirting board 1 is prevented beforehand, and the drop prevention effect of the skirting board 1 is further improved.

上記幅木１が、上記第１平面部１１と第２平面部１２の間に、凸条部１３と凹条部１４を備え、該凸条部１３を上記支柱１に当接させるようにしているので、該幅木１の板厚方向への撓み変形が可及的に抑制され、該幅木１がより安定的に設置され、延いては、上記幅木１による落下防止効果がさらに向上する。  The baseboard 1 is provided with a ridge 13 and a recess 14 between the first plane 11 and the second plane 12, so that the ridge 13 abuts on the support 1. Therefore, bending deformation of the skirting board 1 in the thickness direction is suppressed as much as possible, so that the skirting board 1 is more stably installed, and furthermore, the drop prevention effect of the skirting board 1 is further improved. I do.

本願発明に係る幅木及び幅木設置構造は、建築足場分野において広く利用されるものである。  The baseboard and the baseboard installation structure according to the present invention are widely used in the field of architectural scaffolds.

１ ・・幅木
２ ・・支柱
３ ・・つなぎ材
４ ・・つなぎ材
５ ・・布板
６ ・・掛止フック
７ ・・クサビ
８ ・・連結台
９ ・・クランプ
１０ ・・掛止杆
１１ ・・第１平面部
１２ ・・第２平面部
１３ ・・凸条部
１４ ・・凹条部
１５ ・・長穴DESCRIPTION OF SYMBOLS 1 ... Baseboard 2 ... Support 3 ... Connecting material 4 ... Connecting material 5 ... Cloth plate 6 ... Hook 7 ... Wedge 8 ... Connection table 9 ... Clamp 10 ... Hanging rod 11 ..First flat portion 12 ..Second flat portion 13 ..Convex ridge 14 ..Concave ridge 15 ..Elongated hole

Claims (4)

所定長さの帯板材をその帯長方向に折曲してなる幅木であって、
少なくとも帯幅方向の一方の端縁側と他方の端縁側がそれぞれ帯長方向に延びる平面部とされるとともに、これら該両平面部が板厚方向に所定間隔をもって平行に延出する構成であることを特徴とする幅木。A skirting board formed by bending a band material of a predetermined length in the band length direction,
At least one edge side and the other edge side in the band width direction are flat portions extending in the band length direction, respectively, and both of these flat portions extend in parallel with a predetermined interval in the plate thickness direction. A skirting board characterized by the following. 請求項１において、
上記両平面部の中間部分が、該両平面部間の高低差の範囲内において上記一方の平面部側から他方の平面部側に膨出して帯長方向に延設された凸条部、または他方の平面部から一方の平面部側へ膨出して帯長方向に延設された凹条部とされていることを特徴とする幅木。In claim 1,
An intermediate portion between the two flat portions, a ridge extending from the one flat portion side to the other flat portion side in the band length direction within a range of a height difference between the two flat portions, or A skirting board characterized in that it is a concave strip extending from the other flat portion toward the one flat portion and extending in the belt length direction. 請求項１又は２に記載の幅木を足場上に設置するための設置構造であって、
所定間隔で複数の支柱を列設してなる前後一対の支柱群を、所定間隔をもって略平行に設置するとともに、一方の支柱群の各支柱とこれに対向する他方の支柱群の各支柱をそれぞれつなぎ材で連結して略梯子状形体とするとともに、隣接するつなぎ材間に布板を配置してその各端部の左右両側に設けた掛止フックをそれぞれ上記つなぎ材に掛止させて成る足場において、
上記幅木を、上記一方の支柱群の少なくとも隣接する２本の支柱にまたがって配置し、該幅木の一方の平面部を上記支柱に接触又は近接対向させる一方、他方の平面部はこれを上記布板の上記掛止フックよりも布板中心寄りに位置させた状態でその端面を上記布板の上面に載置又は近接対向させ、この状態で、上記支柱に取付けたクランプによって上記一方の平面部を該支柱に引き付けて固定することを特徴とする幅木の設置構造。An installation structure for installing the skirting board according to claim 1 or 2 on a scaffold,
A pair of front and rear strut groups formed by arranging a plurality of struts at a predetermined interval are installed substantially in parallel at a predetermined interval, and each strut of one strut group and each strut of the other strut group facing the same are respectively A ladder-like structure is formed by connecting the connecting members to form a substantially ladder-like body, and a cloth plate is arranged between the adjacent connecting members, and the hooks provided on the left and right sides of each end thereof are respectively hooked to the connecting members. On the scaffold,
The skirting board is arranged so as to straddle at least two adjacent pillars of the one pillar group, and one plane portion of the skirting board is brought into contact with or close to the pillar, while the other flat portion is In a state where the cloth plate is located closer to the center of the cloth plate than the hook, the end face is placed on or close to the upper surface of the cloth plate, and in this state, the one end is clamped by the clamp attached to the support. A skirting board installation structure, wherein a flat portion is attracted to the support and fixed. 請求項３において、
上記幅木が請求項２に記載の幅木である場合にあっては、上記凹条部を上記支柱に当接又は近接対向させることを特徴とする幅木の設置構造。In claim 3,
The installation structure of a skirting board, wherein the skirting board is the skirting board according to claim 2, wherein the recessed portion is in contact with or close to the pillar.

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