JP2018127841A - Scaffold device - Google Patents

Scaffold device Download PDF

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JP2018127841A
JP2018127841A JP2017022549A JP2017022549A JP2018127841A JP 2018127841 A JP2018127841 A JP 2018127841A JP 2017022549 A JP2017022549 A JP 2017022549A JP 2017022549 A JP2017022549 A JP 2017022549A JP 2018127841 A JP2018127841 A JP 2018127841A
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scaffold
expansion
members
pair
ladder
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JP6929078B2 (en
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賢司 美馬
Kenji Mima
賢司 美馬
慎治 平野
Shinji Hirano
慎治 平野
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Chugoku Electric Power Co Inc
Fuji Furukawa Engineering and Construction Co Ltd
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Chugoku Electric Power Co Inc
Fuji Furukawa Engineering and Construction Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To improve worker's safety and work efficiency.SOLUTION: In a scaffold device 100 having a ladder portion 110 provided with a suspending member 113 provided on one end side in the longitudinal direction and a scaffold portion 120 having a pair of scaffold members 121 provided on both sides of the ladder portion 110, an expansion scaffold member 122 provided to be slidable along the extending direction of the scaffold members 121 is connected to each of the pair of scaffold members 121 with respect to the connected scaffold members 121. Thereby, after installing the scaffold device 100, a work floor can be suitably enlarged.SELECTED DRAWING: Figure 6

Description

この発明は、作業時に設置する足場装置に関する。   The present invention relates to a scaffold device installed during work.

海峡横断鉄塔間に架け渡されるケーブルは、海峡の上空において、当該海峡横断鉄塔のアームの先端に設けられた大規模な懸垂装置によって懸垂される。このように、海峡横断鉄塔間に、海峡を横断するようにしてケーブルを架け渡す架線作業に際しては、作業員の安全確保と作業性の向上のため、従来、鉄塔アームの先端に逆T字型の梯子などの足場を吊り、当該逆T字型の梯子を足場にして作業をおこなっていた。   Cables spanned between the strait-crossing towers are suspended by a large-scale suspension device provided at the tip of the arm of the strait-crossing tower in the sky above the strait. In this way, when carrying out the overhead line work that crosses the strait between the strait-crossing steel towers, in order to ensure the safety of workers and improve the workability, the tip of the steel tower arm has been conventionally inverted T-shaped. The work was carried out using the inverted T-shaped ladder as a scaffold.

架線作業に用いられる逆T字型の梯子などの足場は、海峡横断鉄塔のような極めて高い位置に設置される。このため、従来、地上から所望の位置まで足場を吊り上げる場合や、足場を鉄塔や懸垂装置に長期間設置した場合などを想定し、足場を小さく抑えるなどして、風圧による足場への影響を極力低減していた。   Scaffolds such as inverted T-shaped ladders used for overhead wire work are installed at extremely high positions such as a strait-crossing steel tower. For this reason, in the past, it was assumed that the scaffold was lifted from the ground to a desired position, or when the scaffold was installed on a steel tower or suspension system for a long period of time. It was reduced.

一方で、上記のように、風圧による影響を低減する構造とした足場は、足場を小さく抑えることにより足場の長さが不足し、たとえば、クランプの先端に工具や付属品を取り付ける作業をおこなうことができないなどの不具合が生じることがあった。また、足場を設置する場所が極めて高く、足場の吊り上げや設置が大掛かりであるため、常時広い足場を確保しておくことや、不足するごとに足場を架け替えて位置を移動させることは現実的ではない。この対策として、従来、吊り足場において伸縮機能や拡張機能を追加することにより作業員の移動を可能とした技術があった(たとえば、下記特許文献1〜6を参照)。   On the other hand, as described above, scaffolds with a structure that reduces the influence of wind pressure have a short scaffold length by keeping the scaffold small, for example, performing work to attach tools and accessories to the tip of the clamp In some cases, such as failure to do. In addition, since the place where the scaffolding is installed is extremely high and the lifting and installation of the scaffolding is large, it is realistic to always secure a wide scaffolding or to move the position by changing the scaffolding whenever there is a shortage. is not. Conventionally, as a countermeasure, there has been a technique that enables a worker to move by adding an expansion / contraction function or an expansion function in a suspended scaffold (for example, see Patent Documents 1 to 6 below).

また、関連する技術として、従来、たとえば、折り畳み式の吊り足場装置において、回動自在に連結された複数の縦材であって対向する縦材間に横架材を架設した建枠のうち、相対向する建枠における横架材間に足場板を架設するとともに、相対向する建枠の連結部を避けた位置に筋交を配設することにより、高所作業に適するように組立や解体作業の容易化を図るようにした技術があった(たとえば、下記特許文献7を参照。)。   Moreover, as a related technique, for example, in a folding suspension scaffold device, conventionally, among a plurality of vertical members that are rotatably connected and a horizontal frame erected between opposing vertical members, Assembling and dismantling to be suitable for work in high places by installing scaffolding plates between horizontal members in opposing building frames and arranging braces at positions avoiding connecting parts of opposing building frames There has been a technique for facilitating work (see, for example, Patent Document 7 below).

また、従来の逆T字型の梯子においては、高所からの落下物を想定した落下防止対策が施されていなかった。関連する技術として、従来、電柱に囲繞装着する環帯に複数の骨部材を上下方向に回動可能に設け、当該複数の骨部材の周囲を覆うように網部材を取り付けた電柱作業落下物防止具に関する技術があった(たとえば、下記特許文献8を参照)。   Further, the conventional inverted T-shaped ladder has not been provided with a fall prevention measure that assumes a fallen object from a high place. Conventionally, as a related technique, a plurality of bone members can be pivoted up and down in an annulus attached to a power pole, and a net member is attached to cover the periphery of the plurality of bone members to prevent falling objects There has been a technique related to tools (see, for example, Patent Document 8 below).

特許第5763862号公報Japanese Patent No. 5768622 特許第5860182号公報Japanese Patent No. 5860182 特許第5860186号公報Japanese Patent No. 5860186 特許第5860187号公報Japanese Patent No. 5860187 特開平8−284398号公報JP-A-8-284398 特開2008−95373号公報JP 2008-95373 A 特許第5182014号公報Japanese Patent No. 5182014 特開2016−15802号公報Japanese Patent Laying-Open No. 2006-15802

しかしながら、上述した特許文献1〜5に記載された従来の技術は、足場を固定するために単管クランプなどの固定金具が別途必要であり、このような固定金具が落下した場合に甚大な被害が生じる高所作業、特に、海峡横断鉄塔のような極めて高い位置でおこなう作業に用いる足場としては適していないという問題があった。また、海峡横断鉄塔のような極めて高い位置での作業は風による振動の影響が大きく、固定金具を用いる足場は、振動によって固定金具が緩んで落下するおそれがあり安全性に劣るという問題があった。   However, the conventional techniques described in Patent Documents 1 to 5 described above require a separate bracket such as a single tube clamp in order to fix the scaffold, and if such a fixture is dropped, a great deal of damage is caused. There is a problem that it is not suitable as a scaffold for use in high-altitude work, particularly in work at extremely high positions such as a strait-crossing tower. In addition, work at extremely high positions such as a cross-strait tower is greatly affected by wind vibration, and scaffolds that use fixing brackets have the problem that the fixing brackets may loosen and fall due to vibration, resulting in poor safety. It was.

また、上述した特許文献6に記載された従来の技術は、足場を伸縮させるためのワイヤーや当該ワイヤーの巻取装置が必要であるため、足場のサイズが大きく、設置や架線作業に風圧の影響を大きく受ける海峡横断鉄塔のような極めて高い位置における作業には適していないという問題があった。また、上述した特許文献5に記載された従来の技術は、足場を伸縮させるためのワイヤーや当該ワイヤーの巻取装置が必要であるため、足場の重量が大きく、設置や撤去作業が大掛かりとなってしまうという問題があった。   Moreover, since the conventional technique described in Patent Document 6 described above requires a wire for expanding and contracting the scaffold and a winding device for the wire, the size of the scaffold is large, and the influence of wind pressure on installation and overhead wire work. There is a problem that it is not suitable for work at an extremely high position such as a cross-strait tower. Moreover, since the conventional technique described in the above-mentioned Patent Document 5 requires a wire for expanding and contracting the scaffold and a winding device for the wire, the weight of the scaffold is large, and installation and removal work becomes large. There was a problem that.

また、上述した特許文献7に記載された従来の技術は、足場を固定するために、当該足場の両端を支持する支柱が必要であり、懸垂装置に対する架線作業には適していないという問題があった。また、上述した特許文献8に記載された従来の技術は、特に、海峡横断鉄塔のような極めて高い位置での作業において、万一、工具や資材などの重量物が落下した場合に、落下した工具や資材などによる衝撃に網部材が耐えうる構造となっておらず、安全性に劣るという問題があった。   In addition, the conventional technique described in Patent Document 7 described above requires a column that supports both ends of the scaffold in order to fix the scaffold, and is not suitable for the overhead line work for the suspension device. It was. In addition, the conventional technique described in Patent Document 8 described above has fallen when a heavy object such as a tool or material is dropped, especially in an operation at an extremely high position such as a strait-crossing steel tower. There is a problem that the net member does not have a structure that can withstand an impact caused by a tool or material, resulting in poor safety.

この発明は、上述した従来技術による問題点を解消するため、作業員の安全性の向上および作業効率の向上を図ることができる足場装置を提供することを目的とする。   SUMMARY OF THE INVENTION An object of the present invention is to provide a scaffold device that can improve the safety of workers and the efficiency of work in order to eliminate the above-described problems caused by the prior art.

また、この発明は、上述した従来技術による問題点を解消するため、作業員の安全性の向上および作業効率の向上を図るとともに、資材の落下を防止することにより作業現場の周囲における安全性を確保することができる足場装置を提供することを目的とする。   In addition, the present invention aims to improve the safety of workers and work efficiency in order to eliminate the above-described problems caused by the prior art, and to improve the safety around the work site by preventing the material from falling. An object is to provide a scaffold device that can be secured.

上述した課題を解決し、目的を達成するため、この発明にかかる足場装置は、一対の支柱の間に設けられた複数の横桟を備え、当該一対の支柱の長さ方向における一端側に設けられた吊り部材を備える梯子部と、前記梯子部の一面側と他面側とにそれぞれ設けられ、一端部が前記梯子部の長さ方向における前記吊り部材とは反対側に連結され他端部が前記梯子部との連結位置から離間する方向に延出する、略板形状をなす一対の足場部材を備えた足場部と、を備え、前記足場部が、前記一対の足場部材のそれぞれに連結され、連結された前記足場部材に対して当該足場部材の延出方向に沿ってスライド可能に設けられた、略板形状をなす拡張用足場部材を備えたことを特徴とする。   In order to solve the above-described problems and achieve the object, a scaffold device according to the present invention includes a plurality of horizontal rails provided between a pair of support columns, and is provided on one end side in the length direction of the pair of support columns. A ladder portion provided with a suspended member, and one end portion provided on one side and the other surface side of the ladder portion, the other end portion being connected to the opposite side to the suspension member in the length direction of the ladder portion. Each having a pair of scaffolding members each having a substantially plate shape and extending in a direction away from the connecting position with the ladder portion, wherein the scaffolding portion is coupled to each of the pair of scaffolding members. And an expansion scaffolding member having a substantially plate shape and provided so as to be slidable along the extending direction of the scaffolding member with respect to the connected scaffolding member.

また、この発明にかかる足場装置は、上記の発明において、前記拡張用足場部材が、前記足場部材の板厚方向に沿って複数積層され、それぞれが前記足場部材側の前記拡張用足場部材に対して当該足場部材の延出方向に沿ってスライド可能に設けられていることを特徴とする。   Further, in the scaffold device according to the present invention, in the above-described invention, a plurality of the extension scaffold members are stacked along a thickness direction of the scaffold member, and each of the scaffold members is against the extension scaffold member on the scaffold member side. The scaffold member is slidable along the extending direction of the scaffold member.

また、この発明にかかる足場装置は、上記の発明において、前記一対の足場部材が、それぞれ、前記梯子部に対する連結位置を回動中心として、当該一対の足場部材の延出方向が前記梯子部の長さ方向に平行な状態となる第1の位置と、当該一対の足場部材が相反する方向に延出する状態となる第2の位置と、の間で回動可能に設けられていることを特徴とする。   Further, in the scaffold device according to the present invention, in the above invention, the pair of scaffold members each have a connecting position with respect to the ladder portion as a rotation center, and the extending direction of the pair of scaffold members is the position of the ladder portion. It is provided so as to be rotatable between a first position that is parallel to the length direction and a second position that is a state in which the pair of scaffold members extend in opposite directions. Features.

また、この発明にかかる足場装置は、上記の発明において、前記足場部が、前記足場部材に設けられて、当該足場部材がなす板面から起立する手すり部材と、前記拡張用足場部材に設けられて、当該拡張用足場部材がなす板面から起立する手すり部材と、を備えたことを特徴とする。   Further, in the scaffold device according to the present invention, in the above invention, the scaffold portion is provided on the scaffold member, and is provided on the handrail member standing from a plate surface formed by the scaffold member, and the expansion scaffold member. And a handrail member standing from a plate surface formed by the expansion scaffold member.

また、この発明にかかる足場装置は、上記の発明において、網状部材を備え、当該網状部材を前記手すり部材の起立面内に格納する格納位置と、当該網状部材を前記手すり部材に沿って展開する展開位置と、に位置づけられる落下防止部を備えたことを特徴とする。   Further, the scaffold device according to the present invention is the above-described invention, comprising the mesh member, and storing the mesh member in the standing surface of the handrail member, and deploying the mesh member along the handrail member. And a deployment position, and a fall prevention unit positioned at the deployment position.

この発明にかかる足場装置によれば、作業員の安全性の向上および作業効率の向上を図ることができるという効果を奏する。   According to the scaffold device concerning this invention, there exists an effect that the improvement of a worker's safety and the improvement of work efficiency can be aimed at.

また、この発明にかかる足場装置によれば作業員の安全性の向上および作業効率の向上を図るとともに、資材の落下を防止することにより作業現場の周囲における安全性を確保することができるという効果を奏する。   Moreover, according to the scaffold device concerning this invention, while improving the safety | security of a worker and improvement of work efficiency, the effect that the safety | security around a work site can be ensured by preventing fall of material. Play.

この発明にかかる実施の形態1の足場装置の構成を示す説明図(その1)である。It is explanatory drawing (the 1) which shows the structure of the scaffold apparatus of Embodiment 1 concerning this invention. この発明にかかる実施の形態1の足場装置の構成を示す説明図(その2)である。It is explanatory drawing (the 2) which shows the structure of the scaffold apparatus of Embodiment 1 concerning this invention. この発明にかかる実施の形態1の足場装置の構成を示す説明図(その3)である。It is explanatory drawing (the 3) which shows the structure of the scaffold apparatus of Embodiment 1 concerning this invention. 拡張用足場部材のスライド機構を示す説明図(その1)である。It is explanatory drawing (the 1) which shows the sliding mechanism of the scaffold member for expansion. 拡張用足場部材のスライド機構を示す説明図(その2)である。It is explanatory drawing (the 2) which shows the sliding mechanism of the scaffold member for expansion. 足場延長状態にある足場装置を示す説明図(その1)である。It is explanatory drawing (the 1) which shows the scaffold apparatus in a scaffold extension state. 足場延長状態にある足場装置を示す説明図(その2)である。It is explanatory drawing (the 2) which shows the scaffold apparatus in a scaffold extension state. 足場延長状態にある足場装置を示す説明図(その3)である。It is explanatory drawing (the 3) which shows the scaffold apparatus in a scaffold extension state. この発明にかかる実施の形態1の使用手順を示す説明図である。It is explanatory drawing which shows the use procedure of Embodiment 1 concerning this invention. この発明にかかる実施の形態2の足場装置の構成を示す説明図(その1)である。It is explanatory drawing (the 1) which shows the structure of the scaffold apparatus of Embodiment 2 concerning this invention. この発明にかかる実施の形態2の足場装置の構成を示す説明図(その2)である。It is explanatory drawing (the 2) which shows the structure of the scaffold apparatus of Embodiment 2 concerning this invention. この発明にかかる実施の形態2の足場装置の構成を示す説明図(その3)である。It is explanatory drawing (the 3) which shows the structure of the scaffold apparatus of Embodiment 2 concerning this invention. 落下防止部の展開手順を示す説明図(その1)である。It is explanatory drawing (the 1) which shows the expansion | deployment procedure of a fall prevention part. 落下防止部の展開手順を示す説明図(その2)である。It is explanatory drawing (the 2) which shows the expansion | deployment procedure of a fall prevention part. 落下防止部の展開手順を示す説明図(その3)である。It is explanatory drawing (the 3) which shows the expansion | deployment procedure of a fall prevention part. 落下防止部の展開手順を示す説明図(その4)である。It is explanatory drawing (the 4) which shows the expansion | deployment procedure of a fall prevention part. 落下防止部における枠部材の別の構成を示す説明図(その1)である。It is explanatory drawing (the 1) which shows another structure of the frame member in a fall prevention part. 落下防止部における枠部材の別の構成を示す説明図(その2)である。It is explanatory drawing (the 2) which shows another structure of the frame member in a fall prevention part. 落下防止部における枠部材の別の構成を示す説明図(その3)である。It is explanatory drawing (the 3) which shows another structure of the frame member in a fall prevention part. 落下防止部における枠部材の別の構成を示す説明図(その4)である。It is explanatory drawing (the 4) which shows another structure of the frame member in a fall prevention part. 落下防止部における枠部材の別の構成を示す説明図(その5)である。It is explanatory drawing (the 5) which shows another structure of the frame member in a fall prevention part. 落下防止部における枠部材の別の構成を示す説明図(その6)である。It is explanatory drawing (the 6) which shows another structure of the frame member in a fall prevention part. この発明にかかる実施の形態3の足場装置を示す説明図(その1)である。It is explanatory drawing (the 1) which shows the scaffold apparatus of Embodiment 3 concerning this invention. この発明にかかる実施の形態3の足場装置を示す説明図(その2)である。It is explanatory drawing (the 2) which shows the scaffold apparatus of Embodiment 3 concerning this invention.

以下に添付図面を参照して、この発明にかかる足場装置の好適な実施の形態を詳細に説明する。   Hereinafter, preferred embodiments of a scaffold device according to the present invention will be described in detail with reference to the accompanying drawings.

<実施の形態1>
(足場装置の構成)
まず、この発明にかかる実施の形態1の足場装置の構成について説明する。図1〜図3は、この発明にかかる実施の形態1の足場装置の構成を示す説明図である。図1においては、この発明にかかる実施の形態1の足場装置を斜め上方から見た状態を示している。図2においては、この発明にかかる実施の形態1の足場装置を図1における矢印A方向から見た状態を示している。図3においては、この発明にかかる実施の形態1の足場装置を図1における矢印B方向から見た状態を示している。
<Embodiment 1>
(Configuration of scaffold device)
First, the structure of the scaffold apparatus of Embodiment 1 concerning this invention is demonstrated. 1-3 is explanatory drawing which shows the structure of the scaffold apparatus of Embodiment 1 concerning this invention. In FIG. 1, the state which looked at the scaffold apparatus of Embodiment 1 concerning this invention from diagonally upward is shown. In FIG. 2, the state which looked at the scaffold apparatus of Embodiment 1 concerning this invention from the arrow A direction in FIG. 1 is shown. In FIG. 3, the state which looked at the scaffold apparatus of Embodiment 1 concerning this invention from the arrow B direction in FIG. 1 is shown.

図1〜図3において、この発明にかかる実施の形態1の足場装置100は、梯子部110と、足場部120と、を備えている。梯子部110は、一対の支柱111と、複数の横桟112と、吊り部材113と、を備えている。一対の支柱111は、足場装置100を設置した状態において鉛直方向を長手方向とする棒形状をなす。具体的に、一対の支柱111は、角柱ないし円柱をなす。一対の支柱111は、互いに平行に設けられている。一対の支柱111は、たとえば、ステンレス鋼などを用いて形成することができる。   1 to 3, the scaffold device 100 according to the first embodiment of the present invention includes a ladder part 110 and a scaffold part 120. The ladder part 110 includes a pair of support pillars 111, a plurality of horizontal rails 112, and a suspension member 113. A pair of support | pillar 111 makes | forms the rod shape which makes a vertical direction a longitudinal direction in the state which installed the scaffold apparatus 100. As shown in FIG. Specifically, the pair of support pillars 111 form a prism or a cylinder. The pair of struts 111 are provided in parallel to each other. The pair of struts 111 can be formed using, for example, stainless steel.

複数の横桟112は、それぞれ、一対の支柱111の間に設けられている。横桟112は、細長い板形状あるいは角柱形状をなす。横桟112は、円柱形状であってもよい。横桟112は、一対の支柱111の間において架け渡されるようにして、両端部が一対の支柱111に固定されている。横桟112は、たとえば、ステンレス鋼などを用いて形成することができ、溶接などにより支柱111に固定されている。   Each of the plurality of horizontal rails 112 is provided between the pair of columns 111. The horizontal rail 112 has an elongated plate shape or a prism shape. The horizontal rail 112 may have a cylindrical shape. The horizontal rail 112 is fixed to the pair of columns 111 at both ends so as to be bridged between the pair of columns 111. The horizontal rail 112 can be formed using, for example, stainless steel, and is fixed to the column 111 by welding or the like.

吊り部材113は、一対の支柱111の長さ方向における一端側に設けられている。吊り部材113は、たとえば、フックが係合される貫通孔113aやリングによって実現することができる。あるいは、吊り部材113は、たとえば、フックによって実現してもよく、フックが係合される略U字形状の部材であってもよい。フックは、たとえば、ステンレス鋼などを用いて形成することができる。   The suspension member 113 is provided on one end side in the length direction of the pair of support columns 111. The suspension member 113 can be realized by, for example, a through hole 113a or a ring with which a hook is engaged. Alternatively, the suspension member 113 may be realized by a hook, for example, or may be a substantially U-shaped member with which the hook is engaged. The hook can be formed using, for example, stainless steel.

足場部120は、梯子部110に連結されている。足場部120は、梯子部110を間にして、梯子部110における支柱111および複数の横桟112によって形成される面に直交する方向に沿って対向した状態で、梯子部110に連結されている。足場部120は、たとえば海峡横断鉄塔などにおける所定の取付対象位置に取り付けられた状態において、梯子部110と足場部120との間に架け渡されるワイヤー201によって吊られ、足場部120の荷重が、梯子部110と足場部120との連結位置に集中することを防止し、足場部120を安定して支持することができる。   The scaffold part 120 is connected to the ladder part 110. The scaffold part 120 is connected to the ladder part 110 with the ladder part 110 in between and facing the ladder part 110 along a direction perpendicular to the surface formed by the support pillars 111 and the plurality of horizontal rails 112. . The scaffold part 120 is suspended by a wire 201 spanned between the ladder part 110 and the scaffold part 120, for example, in a state where the scaffold part 120 is attached to a predetermined attachment target position in a strait crossing tower, and the load of the scaffold part 120 is It is possible to prevent the ladder part 110 and the scaffold part 120 from being concentrated at the connection position, and to support the scaffold part 120 stably.

足場部120は、足場部材121と、拡張用足場部材122と、を備えている。足場部材121は、作業に際して作業員が足を載せる部分(作業床)が平坦な、略長方形の平板形状をなす。足場部材121は、具体的には、たとえば、作業床が長方形の略板形状をなし、足場部材121の短辺方向すなわち幅方向の端部をZ形鋼状の形状とした部材によって実現することができる(図4を参照)。あるいは、足場部材121は、具体的には、たとえば、作業床が長方形の略板形状をなし、幅方向における端部が同一方向(拡張用足場部材122に向かう方向)に屈曲された溝形鋼状の形状の部材によって実現してもよい(図5を参照)。   The scaffold part 120 includes a scaffold member 121 and an expansion scaffold member 122. The scaffold member 121 has a substantially rectangular flat plate shape with a flat portion (work floor) on which a worker puts his / her foot during work. Specifically, for example, the scaffold member 121 is realized by a member in which the work floor has a substantially plate shape with a rectangular shape, and a short side direction, that is, an end portion in the width direction of the scaffold member 121 has a Z-shaped steel shape. (See FIG. 4). Alternatively, the scaffold member 121 is specifically a grooved steel in which, for example, the work floor has a substantially plate shape having a rectangular shape, and ends in the width direction are bent in the same direction (direction toward the expansion scaffold member 122). It may be realized by a member having a shape (see FIG. 5).

足場部材121において、作業床の部分は、パンチングメタルやエクスパンディングメタル、あるいは網状などのように、空気が通過する複数の孔を備えた部材によって形成することが好ましい。空気が通過する複数の孔を備えた部材を用いることにより、足場装置100の軽量化を図るとともに、風圧によって足場装置100が揺れて不安定になるなど、風圧による足場装置100への影響を低減することができる。足場部材121は、凹凸のない板状部材によって形成してもよい。   In the scaffold member 121, the work floor portion is preferably formed by a member having a plurality of holes through which air passes, such as punching metal, expanding metal, or net-like shape. By using a member having a plurality of holes through which air passes, the weight of the scaffold device 100 is reduced, and the effect of the wind pressure on the scaffold device 100 is reduced, for example, the scaffold device 100 shakes and becomes unstable due to wind pressure. can do. The scaffold member 121 may be formed of a plate-like member without unevenness.

一対の足場部材121は、それぞれ、長さ方向における一端側(以下、適宜「一辺側」という。)において、一対の支柱111に連結されている。足場部材121は、一対の支柱111に対して、一対の支柱111における吊り部材113とは反対側に連結されている。また、足場部120は、長さ方向における他端側(以下、適宜「他辺側」という。)が、一対の支柱111との連結位置から離間する方向に延出している。   Each of the pair of scaffold members 121 is connected to the pair of support columns 111 on one end side in the length direction (hereinafter referred to as “one side” as appropriate). The scaffold member 121 is connected to the pair of struts 111 on the opposite side of the pair of struts 111 from the suspension member 113. In addition, the other end side in the length direction (hereinafter, referred to as “other side side” as appropriate) of the scaffold portion 120 extends in a direction away from the connection position with the pair of struts 111.

足場部材121には、当該足場部材121がなす板面から起立する手すり部材130が設けられている。手すり部材130は、所定の間隔を空けて足場部材121がなす板面から起立する複数の支持部材131と、足場部材121がなす板面に平行な方向に沿って延出して支持部材131どうしを連結する連結部材132と、によって構成されている。   The scaffold member 121 is provided with a handrail member 130 that stands up from a plate surface formed by the scaffold member 121. The handrail member 130 has a plurality of support members 131 standing up from a plate surface formed by the scaffold member 121 at a predetermined interval and a support member 131 extending along a direction parallel to the plate surface formed by the scaffold member 121. And a connecting member 132 to be connected.

支持部材131および連結部材132は、細長い棒状の部材によって実現することができる。支持部材131および連結部材132を細長い棒状の部材によって実現することにより、風圧によって足場装置100が揺れて不安定になるなど、風圧による足場装置100への影響を低減することができる。また、支持部材131および連結部材132を細長い棒状の部材によって実現することにより、足場装置100の重量増加を抑えつつ、作業員の安全性を確保することができる。   The support member 131 and the connecting member 132 can be realized by an elongated bar-like member. By realizing the support member 131 and the connecting member 132 by elongated rod-like members, the influence of the wind pressure on the scaffold device 100, such as the scaffold device 100 being shaken and unstable by the wind pressure, can be reduced. In addition, by realizing the support member 131 and the connecting member 132 by elongated rod-like members, it is possible to ensure the safety of workers while suppressing an increase in the weight of the scaffold device 100.

手すり部材130は、足場部材121と支持部材131と連結部材132とによって形成される枠内に設けられた筋交い部材133を備えている。筋交い部材133は、支持部材131や連結部材132を実現する棒状の部材と同等あるいは当該棒状の部材よりも細い、細長い棒状の部材によって実現することができる。これにより、足場装置100の軽量化を図ることができる。   The handrail member 130 includes a bracing member 133 provided in a frame formed by the scaffold member 121, the support member 131, and the connecting member 132. The bracing member 133 can be realized by an elongated rod-like member that is the same as or thinner than the rod-like member that realizes the support member 131 and the connecting member 132. Thereby, weight reduction of the scaffold apparatus 100 can be achieved.

また、筋交い部材133は、支持部材131および連結部材132とともにトラス構造を構成する。これにより、足場装置100の軽量化を図るために手すり部材130を細長い棒状の部材によって実現する場合にも、手すり部材130の強度を確保し、作業員の安全性を確保することができる。   The bracing member 133 forms a truss structure together with the support member 131 and the connecting member 132. Accordingly, even when the handrail member 130 is realized by an elongated bar-like member in order to reduce the weight of the scaffold device 100, the strength of the handrail member 130 can be ensured and the safety of the worker can be ensured.

拡張用足場部材122は、一対の足場部材121のそれぞれに連結されている。具体的に、拡張用足場部材122は、作業床が長方形の略板形状をなし、幅方向における端部が板面の両面からそれぞれ突出するH形鋼状の形状の部材によって実現してもよい(図5を参照)。   The expansion scaffold member 122 is connected to each of the pair of scaffold members 121. Specifically, the expansion scaffold member 122 may be realized by a member having an H-shaped steel shape in which the work floor has a substantially plate shape having a rectangular shape, and end portions in the width direction protrude from both surfaces of the plate surface. (See FIG. 5).

拡張用足場部材122において、作業床となる部分は、足場部材121と同様に、パンチングメタルやエクスパンディングメタル、あるいは網状などのように、空気が通過する複数の孔を備えた部材によって形成することが好ましい。空気が通過する複数の孔を備えた部材を用いることにより、足場装置100の軽量化を図るとともに、風圧によって足場装置100が揺れて不安定になるなど、風圧による足場装置100への影響を低減することができる。拡張用足場部材122は、凹凸のない板状部材によって形成してもよい。   In the expansion scaffold member 122, the portion to be a work floor is formed by a member having a plurality of holes through which air passes, such as a punching metal, an expanding metal, or a net shape, like the scaffold member 121. It is preferable. By using a member having a plurality of holes through which air passes, the weight of the scaffold device 100 is reduced, and the effect of the wind pressure on the scaffold device 100 is reduced, for example, the scaffold device 100 shakes and becomes unstable due to wind pressure. can do. The expansion scaffold member 122 may be formed of a plate-like member without unevenness.

拡張用足場部材122は、鉛直方向において足場部材121の上側あるいは下側のいずれの位置にも設けることができる。拡張用足場部材122の長さ方向の寸法は、足場部材121の長さ方向の寸法よりも短いことが好ましい。拡張用足場部材122の長さ方向の寸法は、足場部材121の長さ方向の寸法と同等あるいは足場部材121の長さ方向の寸法よりも長くてもよい。   The expansion scaffold member 122 can be provided at any position above or below the scaffold member 121 in the vertical direction. The lengthwise dimension of the expansion scaffold member 122 is preferably shorter than the lengthwise dimension of the scaffold member 121. The dimension in the length direction of the expansion scaffold member 122 may be equal to the dimension in the length direction of the scaffold member 121 or may be longer than the dimension in the length direction of the scaffold member 121.

拡張用足場部材122は、当該拡張用足場部材122が連結される足場部材121に対して、当該足場部材121の長さ方向に沿ってスライド可能に設けられている。足場装置100においては、拡張用足場部材122を、足場部材121に沿って梯子部110から離反する方向にスライドさせることによって、作業に際して作業床を拡張することができる(図6〜8を参照)。また、足場装置100においては、作業床を拡張した状態から、拡張用足場部材122を、足場部材121に沿って梯子部110に近づく方向にスライドさせることによって、足場装置100の大きさを小さくすることができる。   The expansion scaffold member 122 is provided to be slidable along the length direction of the scaffold member 121 with respect to the scaffold member 121 to which the expansion scaffold member 122 is coupled. In the scaffold device 100, the work floor can be expanded during work by sliding the expansion scaffold member 122 along the scaffold member 121 in a direction away from the ladder portion 110 (see FIGS. 6 to 8). . Further, in the scaffold device 100, the size of the scaffold device 100 is reduced by sliding the expansion scaffold member 122 in the direction of approaching the ladder portion 110 along the scaffold member 121 from a state where the work floor is expanded. be able to.

上記の手すり部材130は、拡張用足場部材122にも設けられている。足場装置100において、拡張用足場部材122を足場部材121の下側に設ける場合、拡張用足場部材122に設けられた手すり部材130どうしの間隔(幅方向の間隔)は、足場部材121に設けられた手すり部材130どうしの間隔よりも広くする。また、足場装置100において、拡張用足場部材122を足場部材121の上側に設ける場合、拡張用足場部材122に設けられた手すり部材130どうしの間隔(幅方向の間隔)は、足場部材121に設けられた手すり部材130どうしの間隔よりも狭くする。   The handrail member 130 is also provided on the expansion scaffold member 122. In the scaffold device 100, when the expansion scaffold member 122 is provided below the scaffold member 121, the spacing (interval in the width direction) between the handrail members 130 provided in the expansion scaffold member 122 is provided in the scaffold member 121. The distance between the handrail members 130 is wider. Further, in the scaffold device 100, when the expansion scaffold member 122 is provided on the upper side of the scaffold member 121, the spacing (interval in the width direction) between the handrail members 130 provided on the expansion scaffold member 122 is provided in the scaffold member 121. The distance between the handrail members 130 is made narrower.

一対の足場部材121のそれぞれに連結される拡張用足場部材122は、1つであってもよく、2つ以上の複数であってもよい。複数の拡張用足場部材122を備えた足場装置100において、当該複数の拡張用足場部材122は、足場部材121の板厚方向に沿って積層される。この場合、複数の拡張用足場部材122は、たとえば、鉛直方向において足場部材121よりも上側に積層する。   The number of the scaffold members 122 for expansion connected to each of the pair of scaffold members 121 may be one or more than two. In the scaffold device 100 including the plurality of expansion scaffold members 122, the plurality of expansion scaffold members 122 are stacked along the thickness direction of the scaffold member 121. In this case, for example, the plurality of expansion scaffold members 122 are stacked above the scaffold member 121 in the vertical direction.

複数の拡張用足場部材122は、それぞれ、直下の拡張用足場部材122に沿ってスライド可能に設けられている。複数の拡張用足場部材122を足場部材121の上側に積層することによって構成される足場装置100において、各拡張用足場部材122は、直下の拡張用足場部材122に重ね合わされる位置と、直下の拡張用足場部材122よりも梯子部110から離反する位置と、の間で、それぞれが直下の拡張用足場部材122に沿ってスライド可能に設けられている。   The plurality of expansion scaffold members 122 are provided so as to be slidable along the expansion scaffold member 122 immediately below. In the scaffold device 100 configured by stacking a plurality of expansion scaffold members 122 on the upper side of the scaffold member 121, each expansion scaffold member 122 is positioned so as to be superimposed on the direct expansion scaffold member 122. Each is provided so as to be slidable along the expansion scaffold member 122 located immediately below the position between the ladder member 110 and the position farther from the ladder portion 110 than the expansion scaffold member 122.

(拡張用足場部材122のスライド機構の一例)
つぎに、拡張用足場部材122のスライド機構の一例について説明する。図4および図5は、拡張用足場部材122のスライド機構を示す説明図である。図4においては、足場部材121および拡張用足場部材122を、幅方向における端部がZ形鋼状の形状の部材によって実現する場合における足場部120の一部を示している。
(Example of slide mechanism of expansion scaffold member 122)
Next, an example of the sliding mechanism of the expansion scaffold member 122 will be described. 4 and 5 are explanatory views showing a sliding mechanism of the expansion scaffold member 122. FIG. FIG. 4 shows a part of the scaffold part 120 when the scaffold member 121 and the expansion scaffold member 122 are realized by a member having an end in the width direction having a Z-shaped steel shape.

図4において、足場部材121および拡張用足場部材122は、略Z形鋼状をなす幅方向の端部を、重ね合わせた状態で足場部120を構成する。拡張用足場部材122において、足場部材121側の面には、ローラー123が設けられている。ローラー123は、回転軸周りに回転する固定車であってもよく、回転軸に直交する取付軸周りにも回転(旋回)する旋回車であってもよい。   In FIG. 4, the scaffold member 121 and the expansion scaffold member 122 constitute the scaffold portion 120 in a state where the end portions in the width direction forming a substantially Z-shaped steel shape are overlapped. In the expansion scaffold member 122, a roller 123 is provided on the surface of the scaffold member 121 side. The roller 123 may be a fixed wheel that rotates around a rotation axis, or may be a turning wheel that rotates (turns) around an attachment axis that is orthogonal to the rotation axis.

ローラー123は、拡張用足場部材122の長さ方向にわたって複数個設けられている。これにより、足場部材121に対する拡張用足場部材122のスライドをスムーズにおこなうことができる。ローラー123は、拡張用足場部材122における幅方向の端部のみに限らず、作業床の部分にも設けられていてもよい。   A plurality of rollers 123 are provided over the length of the expansion scaffold member 122. Thereby, sliding of the expansion scaffold member 122 with respect to the scaffold member 121 can be performed smoothly. The roller 123 is not limited to the end portion in the width direction of the expansion scaffold member 122 but may be provided on the work floor.

足場装置100は、足場部材121に対する拡張用足場部材122の位置を固定するロック機構401を備えている。ロック機構401は、足場部材121および拡張用足場部材122に設けられた貫通孔402と、当該貫通孔402に挿入されるロックピン403と、によって構成される。各貫通孔は、それぞれ、足場部材121および拡張用足場部材122を鉛直方向に沿って貫通する。足場部材121には、足場部材121の長さ方向に沿って複数の貫通孔402が設けられている。   The scaffold device 100 includes a lock mechanism 401 that fixes the position of the expansion scaffold member 122 relative to the scaffold member 121. The lock mechanism 401 includes a through hole 402 provided in the scaffold member 121 and the expansion scaffold member 122, and a lock pin 403 inserted into the through hole 402. Each through-hole penetrates the scaffold member 121 and the expansion scaffold member 122 along the vertical direction. The scaffold member 121 is provided with a plurality of through holes 402 along the length direction of the scaffold member 121.

ロック機構401は、拡張用足場部材122を、足場部材121に設けられた複数の貫通孔402のうちのいずれかの貫通孔402と、拡張用足場部材122に設けられた貫通孔402と、が重複する位置にスライドさせた状態で、各貫通孔402を貫通するようにロックピン403が挿入された状態において、足場部材121に対する拡張用足場部材122の位置を固定する。足場部材121に設けられた複数の貫通孔402のうちのいずれの貫通孔402にロックピン403を挿入するかによって、拡張する作業床の広さを調整することができる。   The lock mechanism 401 includes an expansion scaffold member 122 that includes a through hole 402 of any of the plurality of through holes 402 provided in the scaffold member 121 and a through hole 402 provided in the expansion scaffold member 122. In a state where the lock pin 403 is inserted so as to penetrate each through-hole 402 while being slid to the overlapping position, the position of the expansion scaffold member 122 relative to the scaffold member 121 is fixed. The size of the work floor to be expanded can be adjusted depending on which through-hole 402 of the plurality of through-holes 402 provided in the scaffold member 121 is inserted.

ロックピン403は、貫通孔402に挿入される挿入軸の一端側において屈曲した形状をなす。これにより、各貫通孔402を鉛直方向に沿って貫通させた場合にも、ロックピン403の落下を防止することができる。また、各貫通孔402を鉛直方向に沿って貫通させることにより、ロックピン403を挿入する際の視認性を確保し、作業を容易かつ確実におこなわせることができる。   The lock pin 403 has a bent shape on one end side of the insertion shaft inserted into the through hole 402. Thereby, even when each through-hole 402 is penetrated along the vertical direction, the lock pin 403 can be prevented from falling. Further, by penetrating each through hole 402 along the vertical direction, it is possible to ensure visibility when the lock pin 403 is inserted, and to easily and reliably perform the work.

図5においては、足場部材121および拡張用足場部材122を、幅方向における端部が溝形鋼状の形状の部材によって実現する場合における足場部120の一部を示している。図5において、足場部材121は、溝形鋼状の形状の部材によって実現される。拡張用足場部材122は、H形鋼状の形状の部材によって実現される。足場部120は、足場部材121における溝の内側に拡張用足場部材122を格納するようにして、足場部材121と拡張用足場部材122とを重ね合わせることによって構成されている。   FIG. 5 shows a part of the scaffold part 120 in the case where the scaffold member 121 and the expansion scaffold member 122 are realized by a member having an end in the width direction having a grooved steel shape. In FIG. 5, the scaffold member 121 is realized by a member having a grooved steel shape. The expansion scaffold member 122 is realized by a member having an H-shaped steel shape. The scaffold part 120 is configured by superimposing the scaffold member 121 and the expansion scaffold member 122 so as to store the expansion scaffold member 122 inside the groove of the scaffold member 121.

H形鋼状の形状をなす拡張用足場部材122において、足場部材121側に突出する突出部501の先端には、ローラー123が設けられている。ローラー123は、拡張用足場部材122の長さ方向にわたって複数個設けられている。ローラー123は、上記と同様に固定車であってもよく、旋回車であってもよい。これにより、足場部材121に対する拡張用足場部材122のスライドをスムーズにおこなうことができる。   In the expansion scaffolding member 122 having an H-shaped steel shape, a roller 123 is provided at the tip of the projecting portion 501 projecting toward the scaffolding member 121 side. A plurality of rollers 123 are provided over the length of the expansion scaffold member 122. The roller 123 may be a fixed vehicle or a turning vehicle as described above. Thereby, sliding of the expansion scaffold member 122 with respect to the scaffold member 121 can be performed smoothly.

図5に示す構成の足場装置100におけるロック機構401は、図4に示す構成の足場装置100と同様に、足場部材121および拡張用足場部材122をそれぞれ貫通する貫通孔402と、各貫通孔402に挿入されるロックピン403と、によって構成される。各貫通孔402は、それぞれ、足場部材121および拡張用足場部材122を、水平方向に沿って貫通している。足場部材121には、足場部材121の長さ方向に沿って複数の貫通孔402が設けられている。   As in the scaffold device 100 configured as shown in FIG. 4, the lock mechanism 401 in the scaffold device 100 configured as illustrated in FIG. 5 includes a through hole 402 that penetrates the scaffold member 121 and the expansion scaffold member 122, and the through holes 402. And a lock pin 403 to be inserted. Each through-hole 402 penetrates the scaffold member 121 and the expansion scaffold member 122 in the horizontal direction. The scaffold member 121 is provided with a plurality of through holes 402 along the length direction of the scaffold member 121.

ロック機構401は、拡張用足場部材122を、足場部材121に設けられた複数の貫通孔402のうちのいずれかの貫通孔402と、拡張用足場部材122に設けられた貫通孔402と、が重複する位置にスライドさせた状態で、各貫通孔402を貫通するようにロックピン403が挿入された状態において、足場部材121に対する拡張用足場部材122の位置を固定する。足場部材121に設けられた複数の貫通孔402のうちのいずれの貫通孔402にロックピン403を挿入するかによって、拡張する作業床の広さを調整することができる。   The lock mechanism 401 includes an expansion scaffold member 122 that includes a through hole 402 of any of the plurality of through holes 402 provided in the scaffold member 121 and a through hole 402 provided in the expansion scaffold member 122. In a state where the lock pin 403 is inserted so as to penetrate each through-hole 402 while being slid to the overlapping position, the position of the expansion scaffold member 122 relative to the scaffold member 121 is fixed. The size of the work floor to be expanded can be adjusted depending on which through-hole 402 of the plurality of through-holes 402 provided in the scaffold member 121 is inserted.

ロックピン403は、貫通孔402に挿入される挿入軸の一端側において屈曲した形状をなす。これにより、各貫通孔402を鉛直方向に沿って貫通させた場合にも、ロックピン403の落下を防止することができる。また、各貫通孔402を鉛直方向に沿って貫通させることにより、ロックピン403を挿入する際の視認性を確保し、作業を容易かつ確実におこなわせることができる。   The lock pin 403 has a bent shape on one end side of the insertion shaft inserted into the through hole 402. Thereby, even when each through-hole 402 is penetrated along the vertical direction, the lock pin 403 can be prevented from falling. Further, by penetrating each through hole 402 along the vertical direction, it is possible to ensure visibility when the lock pin 403 is inserted, and to easily and reliably perform the work.

ロックピン403は、鎖やロープを介して、拡張用足場部材122に連結されていてもよい。これにより、ロックピン403の紛失を防止することができ、足場部材121に対する拡張用足場部材122の位置を必要時に確実に固定することができる。   The lock pin 403 may be connected to the expansion scaffold member 122 via a chain or a rope. Thereby, loss of the lock pin 403 can be prevented, and the position of the expansion scaffold member 122 relative to the scaffold member 121 can be reliably fixed when necessary.

この発明にかかる実施の形態1の足場装置100は、図1〜図3に示した足場格納状態から、図6〜図8に示す足場延長状態に変形させることができる。図6〜図8は、足場延長状態にある足場装置100を示す説明図である。図6においては、足場延長状態にある足場装置100を斜め上方から見た状態を示している。図7においては、足場延長状態にある足場装置100を図6における矢印A方向から見た状態を示している。図8においては、足場延長状態にある足場装置100を図6における矢印B方向から見た状態を示している。   The scaffold device 100 according to the first embodiment of the present invention can be transformed from the scaffold storage state shown in FIGS. 1 to 3 to the scaffold extension state shown in FIGS. 6 to 8. 6-8 is explanatory drawing which shows the scaffold apparatus 100 in a scaffold extension state. In FIG. 6, the state which looked at the scaffold apparatus 100 in the scaffold extended state from diagonally upward is shown. In FIG. 7, the state which looked at the scaffold apparatus 100 in the scaffold extended state from the arrow A direction in FIG. 6 is shown. In FIG. 8, the state which looked at the scaffold apparatus 100 in the scaffold extended state from the arrow B direction in FIG. 6 is shown.

図6〜図8に示すように、この発明にかかる実施の形態1の足場装置100は、足場部材121に対して、拡張用足場部材122を梯子部110から離反する方向にスライドさせることによって足場延長状態に変形する。拡張用足場を1つ備えた足場装置100においては、足場延長状態にすることにより、作業床を足場格納状態の約2倍に増やすことができる。   As shown in FIGS. 6 to 8, the scaffold device 100 according to the first embodiment of the present invention is a scaffold by sliding an expansion scaffold member 122 in a direction away from the ladder portion 110 with respect to the scaffold member 121. Deformed into an extended state. In the scaffold device 100 including one expansion scaffold, the work floor can be increased to about twice the scaffold storage state by setting the scaffold in the extended state.

足場装置100において、拡張用足場部材122が鉛直方向において足場部材121の上側に設けられている場合、拡張用足場部材122の長さ方向の寸法が足場部材121の長さ方向の寸法とよりも短ければ、足場装置100を使用する作業員は足場部材121の上に立った状態で拡張用足場部材122をスライドさせ、足場延長状態に変形させることができる。これにより、立ち位置が制限された高所においても、拡張用足場部材122をスライドさせるための空間を確保することができ、足場装置100を足場格納状態から足場延長状態に変形させる作業を安全かつ確実におこなうことができる。   In the scaffold device 100, when the expansion scaffold member 122 is provided on the upper side of the scaffold member 121 in the vertical direction, the dimension of the expansion scaffold member 122 in the length direction is larger than the dimension of the scaffold member 121 in the length direction. If it is short, the worker who uses the scaffold device 100 can slide the expansion scaffold member 122 while standing on the scaffold member 121 to deform it into the stretched state of the scaffold. Thereby, even in a high place where the standing position is restricted, a space for sliding the expansion scaffold member 122 can be secured, and the operation of deforming the scaffold device 100 from the scaffold storage state to the scaffold extension state can be performed safely and It can be done reliably.

拡張用足場部材122を2つ以上の複数備えた足場装置100においては、足場部材121に対して梯子部110から離反する方向にスライドさせた拡張用足場部材122の数に応じて、当該スライドさせた拡張用足場の数の分だけ、作業員が作業する領域を増やすことができる。この場合、各拡張用足場部材122は、作業に必要な長さに応じて適宜スライドさせる。これにより、作業員が作業する領域が過剰に増えることにより、風圧を受けやすくなって風圧によって足場装置100が揺れて不安定になるなど、風圧による足場装置100への影響を低減することができる。   In the scaffold device 100 including two or more extension scaffold members 122, the scaffold member 121 is slid according to the number of the extension scaffold members 122 slid in the direction away from the ladder portion 110 with respect to the scaffold member 121. The number of working areas can be increased by the number of extension scaffolds. In this case, each expansion scaffold member 122 is appropriately slid according to the length required for the work. Thereby, when the area where the worker works is excessively increased, the influence of the wind pressure on the scaffold device 100 can be reduced, such that the scaffold device 100 is easily shaken and unstable due to the wind pressure. .

(足場装置100の使用手順)
つぎに、この発明にかかる実施の形態1の足場装置100の使用手順について説明する。図9は、この発明にかかる実施の形態1の使用手順を示す説明図である。図9において、足場装置100は、使用に際して、まず、足場装置100の吊り部材113を、海峡横断鉄塔901上の取付対象位置に固定する。
(Procedure for using scaffold device 100)
Next, a procedure for using the scaffold device 100 according to the first embodiment of the present invention will be described. FIG. 9 is an explanatory diagram showing a use procedure of the first embodiment according to the present invention. In FIG. 9, when the scaffold device 100 is used, first, the suspension member 113 of the scaffold device 100 is fixed to an attachment target position on the strait-crossing steel tower 901.

具体的には、足場装置100は、たとえば、鉄塔アーム902の先端に引っ掛けるように固定することによって、鉄塔アーム902の先端に取り付けられる。吊り部材113は、鉄塔アーム902の先端などの取付対象位置に取り付けられたクレーンフックに、吊り部材113を引っ掛けることにより固定することができる。足場装置100は、たとえば、鉄塔アーム902の先端に設けられた懸垂装置903に対する作業をおこなう際に設置する。   Specifically, the scaffold device 100 is attached to the tip of the steel tower arm 902, for example, by being fixed so as to be hooked on the tip of the steel tower arm 902. The suspension member 113 can be fixed by hooking the suspension member 113 on a crane hook attached to an attachment target position such as the tip of the steel tower arm 902. The scaffold device 100 is installed, for example, when performing work on the suspension device 903 provided at the tip of the steel tower arm 902.

また、足場装置100の設置に際しては、梯子部110と足場部120との間にワイヤー201を架け渡す。これにより、足場部120の荷重が、梯子部110と足場部120との連結位置に集中することを防止し、足場部120を安定して支持することができる。このような状態において、作業員は、吊り部材113を介して取付対象位置に固定された足場装置100の梯子部110の横桟112に足をかけ、梯子部110を吊り部材113側から鉛直方向下方に向かって足場部120まで下りることができる。   Further, when the scaffold device 100 is installed, the wire 201 is bridged between the ladder unit 110 and the scaffold unit 120. Thereby, it can prevent that the load of the scaffold part 120 concentrates on the connection position of the ladder part 110 and the scaffold part 120, and can support the scaffold part 120 stably. In such a state, the worker puts his / her feet on the horizontal rail 112 of the ladder portion 110 of the scaffold device 100 fixed at the attachment target position via the suspension member 113, and the ladder portion 110 is perpendicular to the suspension member 113 side. It can go down to the scaffold part 120 toward the bottom.

作業員は、足場部120の上に立って作業をおこない、足場部材121のみでは作業対象箇所に手が届かない場合に、拡張用足場部材122を引き出して作業床の広さを拡張する。これにより、足場装置100をつけかえることなく、広い足場を確保することができる。   The worker works while standing on the scaffold portion 120. When the scaffold member 121 alone does not reach the work target location, the worker expands the work floor by pulling out the expansion scaffold member 122. Thereby, a wide scaffold can be secured without changing the scaffold device 100.

なお、上述した実施の形態1においては、複数の拡張用足場部材122を備えた足場装置100において、足場部材121の板厚方向に沿って積層される複数の拡張用足場部材122を、鉛直方向において足場部材121よりも上側あるいは下側に積層することができる旨説明したが、これに限るものではない。複数の拡張用足場部材122を備えた足場装置100においては、複数の拡張用足場部材122を、鉛直方向において足場部材121よりも下側に積層してもよい。この場合、拡張用足場部材122の長さ方向の寸法を場部材の長さ方向の寸法と同程度にした場合にも、作業員は足場部材121に立っている状態で、拡張用足場部材122をスライドさせ、作業床を拡張することができる。   In the first embodiment described above, in the scaffold device 100 including the plurality of expansion scaffold members 122, the plurality of expansion scaffold members 122 stacked along the plate thickness direction of the scaffold member 121 are arranged in the vertical direction. However, the present invention is not limited to this. In the scaffold device 100 including the plurality of expansion scaffold members 122, the plurality of expansion scaffold members 122 may be stacked below the scaffold member 121 in the vertical direction. In this case, even when the length-wise dimension of the expansion scaffold member 122 is set to be approximately the same as the length-direction dimension of the field member, the expansion scaffold member 122 remains in a state where the worker is standing on the scaffold member 121. Can be expanded to expand the work floor.

あるいは、複数の拡張用足場部材122を、鉛直方向において足場部材121よりも下側に積層する場合、拡張用足場部材122の長さ方向の寸法を足場部材121の長さ方向の寸法よりも長くしてもよい。この場合にも、作業員は足場部材121に立っている状態で、拡張用足場部材122を容易に掴むことができ、拡張用足場部材122をスライドさせて作業床を拡張することができる。   Alternatively, when the plurality of expansion scaffold members 122 are stacked below the scaffold member 121 in the vertical direction, the dimension in the length direction of the scaffold member 122 for expansion is longer than the dimension in the length direction of the scaffold member 121. May be. Also in this case, the worker can easily grasp the expansion scaffold member 122 while standing on the scaffold member 121, and can slide the expansion scaffold member 122 to expand the work floor.

また、足場装置100においては、一対の足場部120における各拡張用足場部材122が、均等にスライドするように、各拡張用足場部材122のスライドを連動させる機構を備えていてもよい。具体的には、たとえば、各足場部材121における先端側にピニオンギアを設け、各拡張用足場部材122における足場部材121側の面に、当該拡張用足場部材122の長さ方向に沿って直線上のラックギアをそれぞれ設ける(いずれも図示を省略する)。ラックギアは、ピニオンギアとかみ合わせる。そして、各足場部材121に設けられたピニオンギアを、ギア列あるいは駆動ワイヤなどで連結し、いずれか一方のピニオンギアの回転を、回転方向を反転させて他方のピニオンギアに伝達する。   In addition, the scaffold device 100 may include a mechanism for interlocking the slides of the respective expansion scaffold members 122 so that the respective expansion scaffold members 122 in the pair of scaffold portions 120 slide evenly. Specifically, for example, a pinion gear is provided on the distal end side of each scaffold member 121, and the surface on the scaffold member 121 side of each expansion scaffold member 122 is linear along the length direction of the expansion scaffold member 122. Rack gears are provided (all are not shown). The rack gear meshes with the pinion gear. And the pinion gear provided in each scaffold member 121 is connected by a gear train or a drive wire, and the rotation of one of the pinion gears is transmitted to the other pinion gear by reversing the rotation direction.

これにより、一対の足場部120における各拡張用足場部材122を均等にスライドさせることができる。そして、このように各拡張用足場部材122を均等にスライドさせることにより、いずれか一方の足場部120のみ拡張させることによって足場部材121の重心バランスが変動し、足場が傾いてしまうことを確実に防止できる。これにより、作業員の安全性を確保することができる。   Thereby, each expansion scaffold member 122 in a pair of scaffold part 120 can be slid equally. Then, by sliding each expansion scaffold member 122 evenly in this way, it is ensured that the balance of the center of gravity of the scaffold member 121 varies and the scaffold tilts by expanding only one of the scaffold portions 120. Can be prevented. Thereby, the safety of the worker can be ensured.

また、一対の足場部120における各拡張用足場部材122を均等にスライドさせることにより、作業員に足場部材121の重心バランスを調整する作業を負担させることなく、足場が傾いてしまうことを確実に防止できる。これにより、作業効率の向上を図ることができる。複数の拡張用足場部材122を備える場合も、同様に、積層された各拡張用足場部材122をピニオンギアとラックギアとによって連結する。これにより、拡張用足場部材122の数にかかわらず、一対の足場部120における各拡張用足場部材122を均等にスライドさせることができる。   In addition, by sliding the expansion scaffold members 122 in the pair of scaffold portions 120 evenly, it is ensured that the scaffold is tilted without burdening the worker to adjust the balance of the center of gravity of the scaffold member 121. Can be prevented. Thereby, the working efficiency can be improved. Similarly, when the plurality of expansion scaffolding members 122 are provided, the stacked expansion scaffolding members 122 are similarly connected by a pinion gear and a rack gear. Thereby, irrespective of the number of the scaffold members 122 for expansion, each scaffold member 122 for expansion in a pair of scaffold part 120 can be slid equally.

以上説明したように、この発明にかかる実施の形態1の足場装置100は、一対の支柱111の間に設けられた複数の横桟112を備え、当該一対の支柱111の長さ方向における一端側に設けられた吊り部材113を備える梯子部110と、梯子部110の一面側と他面側とにそれぞれ設けられ、一端部が梯子部110の長さ方向における吊り部材113とは反対側に連結され他端部が梯子部110との連結位置から離間する方向に延出する、略板形状をなす一対の足場部材121を備えた足場部120と、を備え、足場部120が、一対の足場部材121のそれぞれに連結され、連結された足場部材121に対して当該足場部材121の延出方向に沿ってスライド可能に設けられた、略板形状をなす拡張用足場部材122を備えたことを特徴としている。   As described above, the scaffold device 100 according to the first embodiment of the present invention includes the plurality of horizontal rails 112 provided between the pair of columns 111, and one end side in the length direction of the pair of columns 111. The ladder part 110 having the suspension member 113 provided on the ladder part 110 is provided on one side and the other side of the ladder part 110, and one end is connected to the opposite side of the ladder part 110 in the length direction of the ladder part 110. And the other end portion extends in a direction away from the connection position with the ladder portion 110, and includes a scaffold portion 120 including a pair of scaffold members 121 having a substantially plate shape, and the scaffold portion 120 is a pair of scaffolds. Each of the members 121 is provided with an expansion scaffold member 122 having a substantially plate shape that is slidable along the extending direction of the scaffold member 121 with respect to the coupled scaffold member 121. It is a symptom.

この発明にかかる実施の形態1の足場装置100によれば、足場装置100を設置した後に、作業に際して作業床を適宜拡大することができる。具体的には、たとえば、地上から所望の位置まで足場を吊り上げる際や足場装置100の運搬の際には、拡張用足場部材122を足場部材121に重ね合わせて足場装置100の体積を小さくし、作業環境や作業対象箇所に応じて、作業に際して作業床を拡張することができる。   According to the scaffold device 100 according to the first embodiment of the present invention, after the scaffold device 100 is installed, the work floor can be appropriately enlarged during work. Specifically, for example, when lifting the scaffold from the ground to a desired position or when transporting the scaffold device 100, the expansion scaffold member 122 is superimposed on the scaffold member 121 to reduce the volume of the scaffold device 100, The work floor can be expanded during work according to the work environment and the work target location.

足場装置100の体積を小さくすることにより、風を受ける面積を最小限にすることができるので、風圧によって足場装置100が揺れて不安定になるなど、風圧による足場装置100への影響を低減することができる。一方、作業に際して作業床を拡張することにより、大がかりな足場装置100の架け替え作業をおこなうことなく、足場から乗り出して不安定な姿勢で作業をおこなうことによって安全性が低下したり足場が不足することによって作業が停滞することを回避できる。   By reducing the volume of the scaffold device 100, it is possible to minimize the area that receives the wind, so that the scaffold device 100 is shaken and unstable due to the wind pressure, thereby reducing the influence of the wind pressure on the scaffold device 100. be able to. On the other hand, by expanding the work floor at the time of work, the safety is lowered or the scaffold is insufficient by working from an scaffold and working in an unstable posture without performing a large-scale replacement work of the scaffold device 100. Therefore, it is possible to avoid that work is stagnant.

また、作業床を拡張することにより、作業員を増員することができる。すなわち、作業床を拡張することにより、作業床を拡張していない場合と比較して、1台の足場装置100に立つことができる作業員の人数を増やすことができる。そして、1台の足場装置100に立つことができる作業員の人数を増やすことにより、作業効率の向上を図ることができる。   In addition, the number of workers can be increased by expanding the work floor. That is, by expanding the work floor, the number of workers who can stand on one scaffold device 100 can be increased as compared with the case where the work floor is not expanded. And the work efficiency can be improved by increasing the number of workers who can stand on one scaffold device 100.

このように、この発明にかかる実施の形態1の足場装置100によれば、作業員の安全性の向上および作業効率の向上を図ることができる。   Thus, according to the scaffold apparatus 100 of Embodiment 1 concerning this invention, the improvement of a worker's safety | security and work efficiency can be aimed at.

また、この発明にかかる実施の形態1の足場装置100は、足場部材121の板厚方向に沿って積層された複数の拡張用足場部材122を備えた足場部120とし、それぞれの拡張用足場部材122を、足場部材121側の拡張用足場部材122に対して当該足場部材121の延出方向に沿ってスライド可能に設けることによって構成してもよい。   In addition, the scaffold device 100 according to the first embodiment of the present invention includes a scaffold portion 120 including a plurality of expansion scaffold members 122 stacked along the thickness direction of the scaffold member 121, and each of the expansion scaffold members. You may comprise 122 by providing along the extension direction of the said scaffold member 121 with respect to the scaffold member 122 for an expansion | swelling by the side of the scaffold member 121, and may be comprised.

このような足場装置100によれば、作業環境や作業対象箇所に応じて、作業に際して作業床を段階的に拡大することができる。これにより、作業に際して作業床を拡張することによる作業員の安全性や作業効率の向上を図るとともに、作業床の拡大量を、作業内容などに応じて風を受ける面積が極力小さくなるよう加減しながら調整することができる。   According to such a scaffold device 100, the work floor can be expanded step by step in accordance with the work environment and work target location. As a result, the work floor is expanded during work to improve worker safety and work efficiency, and the work floor expansion amount is adjusted so that the area that receives wind is minimized according to the work content. Can be adjusted.

これによって、作業員の安全性の一層の向上を図るとともに、作業効率の一層の向上を図ることができる。   As a result, the safety of the worker can be further improved and the work efficiency can be further improved.

<実施の形態2>
(足場装置の構成)
つぎに、この発明にかかる実施の形態2の足場装置の構成について説明する。実施の形態2においては、上述した実施の形態1と同じ部分は同一符号で示し、説明を省略する。
<Embodiment 2>
(Configuration of scaffold device)
Next, the structure of the scaffold device according to the second embodiment of the present invention will be described. In the second embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

図10〜図12は、この発明にかかる実施の形態2の足場装置の構成を示す説明図である。図10においては、この発明にかかる実施の形態2の足場装置を正面から見た状態を示している。図11においては、この発明にかかる実施の形態2の足場装置を図10における矢印C方向から見た状態を示している。図12においては、この発明にかかる実施の形態2の足場装置を図10における矢印B方向から見た状態を示している。   10-12 is explanatory drawing which shows the structure of the scaffold apparatus of Embodiment 2 concerning this invention. In FIG. 10, the state which looked at the scaffold apparatus of Embodiment 2 concerning this invention from the front is shown. In FIG. 11, the state which looked at the scaffold apparatus of Embodiment 2 concerning this invention from the arrow C direction in FIG. 10 is shown. In FIG. 12, the state which looked at the scaffold apparatus of Embodiment 2 concerning this invention from the arrow B direction in FIG. 10 is shown.

図10〜図12において、この発明にかかる実施の形態2の足場装置1000は、梯子部110と、一対の足場部120と、手すり部材130と、落下防止部1010と、を備えている。落下防止部1010は、枠部材1011と、当該枠部材1011の内側に設けられた落下防護ネット(網状部材)1012と、を備えている。枠部材1011は、落下防護ネット1012の周縁を囲む長方形状をなす。枠部材1011は、手すり部材130を構成する連結部材132に沿って延出する一辺において、当該連結部材132に連結されている。   10-12, the scaffold apparatus 1000 of Embodiment 2 concerning this invention is provided with the ladder part 110, a pair of scaffold part 120, the handrail member 130, and the fall prevention part 1010. As shown in FIG. The fall prevention unit 1010 includes a frame member 1011 and a fall protection net (net-like member) 1012 provided inside the frame member 1011. The frame member 1011 has a rectangular shape surrounding the periphery of the fall protection net 1012. The frame member 1011 is connected to the connecting member 132 on one side extending along the connecting member 132 constituting the handrail member 130.

落下防護ネット1012は、たとえば、ロープや針金などの紐状の部材を、方形あるいはひし形の目を透かすように格子状に編むことによって作製されている。落下防護ネット1012は、具体的には、たとえば、ナイロン製の柔軟性がある細いロープを格子状に編むことによって作製された網によって実現することができる。あるいは、落下防護ネット1012は、具体的には、たとえば、パンチングメタルやエクスパンディングメタルなどの金網によって実現してもよい。   The fall protection net 1012 is produced, for example, by knitting a string-like member such as a rope or a wire in a lattice shape so that the square or rhombus eyes can be seen through. Specifically, the fall protection net 1012 can be realized by, for example, a net produced by knitting a thin flexible rope made of nylon in a lattice shape. Or the fall protection net | network 1012 may be specifically implement | achieved by metal meshes, such as a punching metal and an expanding metal, for example.

落下防止部1010は、落下防護ネット1012を手すり部材130の起立面内に格納する格納位置と、当該落下防護ネット1012を足場部材121の周囲に展開する展開位置と、に選択的に位置づけられる。具体的には、たとえば、枠部材1011を連結部材132との連結位置を支点として回動(揺動)可能に設け、枠部材1011によって囲まれる平面が手すり部材130の起立方向と平行となるように当該枠部材1011を位置づけることにより、落下防護ネット1012を手すり部材130の起立面内に格納することができる。この場合、枠部材1011によって囲まれる平面が手すり部材130の起立方向と交差するように枠部材1011を回動(揺動)させることにより、当該枠部材1011を展開位置に位置づけることができる。   The fall prevention unit 1010 is selectively positioned at a storage position where the fall protection net 1012 is stored in the standing surface of the handrail member 130 and a deployment position where the fall protection net 1012 is deployed around the scaffold member 121. Specifically, for example, the frame member 1011 is provided so as to be rotatable (swingable) with the connection position with the connection member 132 as a fulcrum, and the plane surrounded by the frame member 1011 is parallel to the standing direction of the handrail member 130. By positioning the frame member 1011 at the position, the fall protection net 1012 can be stored in the standing surface of the handrail member 130. In this case, the frame member 1011 can be positioned at the unfolded position by rotating (swinging) the frame member 1011 so that the plane surrounded by the frame member 1011 intersects the standing direction of the handrail member 130.

枠部材1011は、展開位置に位置づけられた状態において、水平方向すなわち足場部材121や拡張用足場部材122がなす平面方向に対して、先端側ほど鉛直方向上側に位置するように傾斜して設けられる。これにより、枠部材1011の十分な強度を確保することができ、展開している状態の落下防護ネット1012に重量物が落下した場合でも、当該重量物を受け止めることができる。   In a state where the frame member 1011 is positioned at the unfolded position, the frame member 1011 is provided to be inclined so as to be positioned on the upper side in the vertical direction toward the distal end side with respect to the horizontal direction, that is, the plane direction formed by the scaffold member 121 and the expansion scaffold member 122. . Thereby, sufficient strength of the frame member 1011 can be ensured, and even when a heavy object falls on the fall protection net 1012 in a deployed state, the heavy object can be received.

図13〜図16は、落下防止部1010の展開手順を示す説明図である。図13〜図16に示すように、枠部材1011を連結部材132との連結位置を支点として回動(揺動)させることにより、落下防止部1010を格納位置に位置づけたり(図12を参照)、展開位置に位置づけたり(図14〜16を参照)することができる。   FIG. 13 to FIG. 16 are explanatory views showing a procedure for expanding the fall prevention unit 1010. As shown in FIGS. 13 to 16, the frame member 1011 is rotated (swinged) with the connection position with the connection member 132 as a fulcrum to position the fall prevention unit 1010 at the storage position (see FIG. 12). , And can be positioned at the unfolded position (see FIGS. 14 to 16).

落下防止部1010は、展開状態に位置づけられた枠部材1011を支える支え部材1301を備えていてもよい。支え部材1301は、たとえば、展開状態に位置づけられた枠部材1011と、手すり部材130における支持部材131との間において架け渡される棒状の部材によって実現することができる。支え部材1301を設けることにより、落下防止部1010の位置を固定することができる。   The fall prevention unit 1010 may include a support member 1301 that supports the frame member 1011 positioned in the unfolded state. The support member 1301 can be realized by, for example, a rod-like member that is bridged between the frame member 1011 positioned in the unfolded state and the support member 131 of the handrail member 130. By providing the support member 1301, the position of the fall prevention unit 1010 can be fixed.

支え部材1301は、長さ方向における途中に関節1302を備えていてもよい。これにより、落下防止部1010を格納位置に位置づける際には支え部材1301を折りたたんで落下収納部の体積を小さくすることができ、使用しない状態における落下防止部1010が作業の支障となることを防止できる。   The support member 1301 may include a joint 1302 in the middle in the length direction. Accordingly, when the fall prevention unit 1010 is positioned at the retracted position, the support member 1301 can be folded to reduce the volume of the fall storage unit, and the fall prevention unit 1010 can be prevented from hindering work when not in use. it can.

図17〜図22は、落下防止部1010における枠部材1011の別の構成を示す説明図である。落下防止部1010における枠部材1011は、図13〜図16に示した構成に代えて、たとえば図17〜図22に示すように、枠部材1011を複数の部材によって構成し、足場装置1000の使用時に組み立てるようにしてもよい。図17〜図22に示した構成においては、枠部材1011の一部1011aを手すり部材130における連結部材132に回動可能に連結し、落下防止部1010の使用時には、当該枠部材1011の一部に、別の一部を連結する。   17-22 is explanatory drawing which shows another structure of the frame member 1011 in the fall prevention part 1010. As shown in FIG. The frame member 1011 in the fall prevention unit 1010 is configured by using a plurality of members as shown in FIGS. 17 to 22 instead of the configuration shown in FIGS. Sometimes it may be assembled. In the configuration shown in FIGS. 17 to 22, a part 1011 a of the frame member 1011 is rotatably connected to the connection member 132 of the handrail member 130, and a part of the frame member 1011 is used when the fall prevention unit 1010 is used. To another part.

具体的には、たとえば、図17〜図19に示すように、枠部材1011における手すり部材130における連結部材132に連結される一部1011aに、別の一部1011bを被せることによって連結した状態で、固定ピン1901などを用いて固定することにより、枠部材1011における一部に、別の一部との位置関係を固定する。   Specifically, for example, as shown in FIGS. 17 to 19, in a state where the part 1011 a connected to the connecting member 132 of the handrail member 130 in the frame member 1011 is connected by covering another part 1011 b. By fixing using a fixing pin 1901 or the like, the positional relationship with another part is fixed to a part of the frame member 1011.

また、この場合、図17〜図19に示す構成に代えて、図20〜図22に示すように、枠部材1011における手すり部材130における連結部材132に連結される一部に、別の一部を被せて螺合させることによって連結する構成としてもよい。この場合、被せられる側にストッパー1701などを設けることにより、枠部材1011を一定の形状に維持することができる。   In this case, instead of the configuration shown in FIGS. 17 to 19, as shown in FIGS. 20 to 22, another part of the frame member 1011 connected to the connection member 132 of the handrail member 130 is replaced with another part. It is good also as a structure connected by covering and screwing. In this case, the frame member 1011 can be maintained in a certain shape by providing a stopper 1701 or the like on the covered side.

このように、枠部材1011を複数の部材によって構成し、個々の部材の取り扱い性を向上させることにより、枠部材1011を大型化し展開時における落下防止ネットの面積を広く確保することが可能になる。これにより、ボルトやナットあるいは工具などの、足場装置1000でおこなう作業に用いる資材の落下を確実に防止することができる。   As described above, the frame member 1011 is constituted by a plurality of members, and by improving the handleability of the individual members, the frame member 1011 can be enlarged to ensure a large area of the fall prevention net during deployment. . Thereby, the fall of the materials used for the operation | work done with the scaffold apparatus 1000, such as a volt | bolt, a nut, or a tool, can be prevented reliably.

図17〜図19に示す構成においても、図20〜図22に示す構成においても、支え部材1301を用いて枠部材1011を支えることが好ましい。支え部材1301を備えることにより、枠部材1011を大型化し、展開時における落下防止ネットの面積を広げた構成とした場合にも、資材の落下を防止するとともに落下防止部1010の損壊を防止することができる。   In the configurations shown in FIGS. 17 to 19 and the configurations shown in FIGS. 20 to 22, it is preferable to support the frame member 1011 using the support member 1301. Providing the support member 1301 increases the size of the frame member 1011 and increases the area of the fall prevention net at the time of deployment, thereby preventing the material from falling and preventing the fall prevention unit 1010 from being damaged. Can do.

以上説明したように、この発明にかかる実施の形態2の足場装置1000は、足場部120が、足場部材121に設けられて当該足場部材121がなす板面から起立する手すり部材130と、拡張用足場部材122に設けられて当該拡張用足場部材122がなす板面から起立する手すり部材130と、を備えたことを特徴としている。   As described above, in the scaffold device 1000 according to the second embodiment of the present invention, the scaffold portion 120 is provided on the scaffold member 121, and the handrail member 130 standing from the plate surface formed by the scaffold member 121, and the expansion device. And a handrail member 130 that is provided on the scaffold member 122 and stands up from a plate surface formed by the expansion scaffold member 122.

この発明にかかる実施の形態2の足場装置1000によれば、手すり部材130が足場部材121および拡張用足場部材122に設けられているため、作業に際して作業床を拡張すると同時に、拡張部分にも確実に手すり部材130を配置することができる。これにより、たとえば、手すり部材130を足場部120とは別体で設ける場合には必要となる手すり部材130の設置作業を不要とすることができ、作業効率の向上を図ることができる。   According to the scaffold device 1000 according to the second embodiment of the present invention, since the handrail member 130 is provided on the scaffold member 121 and the expansion scaffold member 122, the work floor is expanded at the same time as the work, and at the same time, the expanded portion is also securely attached. The handrail member 130 can be disposed on the side. Thereby, for example, when the handrail member 130 is provided separately from the scaffold portion 120, the installation work of the handrail member 130 which is necessary can be made unnecessary, and the work efficiency can be improved.

また、たとえば、手すり部材130を足場部120とは別体で設けると手すり部材130の運搬を失念したり、作業床のみを拡張して手すり部材130の設置を失念したりすることが懸念されるが、この発明にかかる実施の形態2の足場装置1000によれば、手すり部材130が設置されていない部分が生じることをなくし、足場装置1000によって供されるすべての足場において作業員の安全性を確保することができる。   Further, for example, if the handrail member 130 is provided separately from the scaffold portion 120, there is a concern that the handrail member 130 may be forgotten to be transported, or that only the work floor may be expanded to forget the installation of the handrail member 130. However, according to the scaffold device 1000 of the second embodiment of the present invention, a portion where the handrail member 130 is not installed is prevented from being generated, and the safety of the worker is improved in all the scaffolds provided by the scaffold device 1000. Can be secured.

また、この発明にかかる実施の形態2の足場装置1000は、網状部材を備え、当該網状部材を手すり部材130の起立面内に格納する格納位置と、当該網状部材を手すり部材130に沿って展開する展開位置と、に位置づけられる落下防止部1010を備えたことを特徴としている。   Further, the scaffold device 1000 according to the second embodiment of the present invention includes a mesh member, and stores the mesh member in a standing surface of the handrail member 130, and deploys the mesh member along the handrail member 130. And an unfolding position, and a fall prevention unit 1010 positioned at the position.

この発明にかかる実施の形態2の足場装置1000によれば、足場装置1000を設置した後に、作業環境に応じて必要時に落下防止部1010を展開位置に位置づけることができる。具体的には、たとえば、地上から所望の位置まで足場を吊り上げる際や足場装置1000の運搬の際には、落下防止部1010を格納位置に位置づけて足場装置1000の体積を小さくし、作業環境や作業対象箇所に応じて、適宜、落下防止部1010を展開位置に位置づけることができる。   According to the scaffold device 1000 according to the second embodiment of the present invention, after the scaffold device 1000 is installed, the fall prevention unit 1010 can be positioned at the unfolded position when necessary according to the work environment. Specifically, for example, when lifting the scaffold from the ground to a desired position or transporting the scaffold apparatus 1000, the fall prevention unit 1010 is positioned at the storage position to reduce the volume of the scaffold apparatus 1000, and The fall prevention unit 1010 can be positioned at the deployment position as appropriate according to the work target location.

足場装置1000の体積を小さくすることにより、風を受ける面積を最小限にすることができるので、風圧によって足場装置1000が揺れて周囲に衝突することによる足場装置1000や鉄塔901その他の設備の破損など、風圧による足場装置1000への影響を低減することができる。一方、作業環境や作業対象箇所に応じて、適宜、落下防止部1010を展開位置に位置づけることにより、ボルトやナットあるいは工具などの、足場装置1000でおこなう作業に用いる資材の落下を確実に防止することができる。   By reducing the volume of the scaffold device 1000, the area that receives the wind can be minimized, so that the scaffold device 1000 sways and collides with the surroundings due to the wind pressure swaying the scaffold device 1000, the steel tower 901, and other equipment. Thus, it is possible to reduce the influence of the wind pressure on the scaffold device 1000. On the other hand, by appropriately positioning the fall prevention unit 1010 at the unfolded position according to the work environment and the work target location, it is possible to reliably prevent the materials used for the work performed by the scaffold device 1000, such as bolts, nuts, and tools. be able to.

このように、この発明にかかる実施の形態2の足場装置1000によれば、作業員の安全性の一層の向上および作業効率の一層の向上を図ることができる。   Thus, according to the scaffold apparatus 1000 of the second embodiment of the present invention, it is possible to further improve the safety of workers and further improve the work efficiency.

<実施の形態3>
つぎに、この発明にかかる実施の形態3の足場装置について説明する。実施の形態3においては、上述した実施の形態1、2と同一部分は同一符号で示し、説明を省略する。図23および図24は、この発明にかかる実施の形態3の足場装置を示す説明図である。図23および図24においては、この発明にかかる実施の形態3の足場装置を正面から見た状態を示している。
<Embodiment 3>
Next, a scaffold device according to a third embodiment of the present invention will be described. In the third embodiment, the same parts as those in the first and second embodiments are denoted by the same reference numerals, and description thereof is omitted. 23 and 24 are explanatory views showing a scaffold device according to Embodiment 3 of the present invention. 23 and 24 show a state in which the scaffold device according to the third embodiment of the present invention is viewed from the front.

図23および図24において、この発明にかかる実施の形態3の足場装置2300は、梯子部110と、一対の足場部120と、を備えている。一対の足場部120における各足場部材121は、それぞれ、梯子部110に対して回動可能に連結されている。具体的に、各足場部材121は、梯子部110における吊り部材113とは反対側に設けられた支持部材131の端部に軸部材2301を介して連結されており、これにより、軸部材2301を回動中心として回動することができる。   23 and 24, the scaffold device 2300 according to the third embodiment of the present invention includes a ladder section 110 and a pair of scaffold sections 120. Each scaffold member 121 in the pair of scaffold sections 120 is rotatably connected to the ladder section 110. Specifically, each scaffold member 121 is connected to an end portion of a support member 131 provided on the opposite side of the ladder member 110 from the suspension member 113 via a shaft member 2301, whereby the shaft member 2301 is attached. It can be rotated as a rotation center.

一対の足場部材121は、それぞれ、梯子部110に対する連結位置である軸部材2301を回動中心として回動することにより、当該一対の足場部材121の延出方向が梯子部110の長さ方向に平行な状態となる第1の位置、または、当該一対の足場部材121が相反する方向に延出する状態となる第2の位置、に選択的に位置づけられる。一対の足場部材121は、たとえば、地上から所望の位置まで足場を吊り上げる際や足場装置2300の運搬の際に、それぞれ第2の位置に位置づける。   Each of the pair of scaffold members 121 rotates about the shaft member 2301 that is a connection position with respect to the ladder portion 110, so that the extending direction of the pair of scaffold members 121 is in the length direction of the ladder portion 110. It is selectively positioned at a first position that is in a parallel state or a second position that is in a state in which the pair of scaffold members 121 extends in opposite directions. The pair of scaffold members 121 are positioned at the second positions, for example, when the scaffold is lifted from the ground to a desired position or when the scaffold device 2300 is transported.

この発明にかかる実施の形態3の足場装置2300は、実施の形態2の落下防止部1010を備えていてもよい。この場合、落下防止部1010は、各足場部120にそれぞれ取り付ける。これにより、落下防止部1010を設けた場合にも、当該落下防止部1010が支障となることなく、各足場部120を回動させることができる。   The scaffold device 2300 according to the third embodiment of the present invention may include the fall prevention unit 1010 according to the second embodiment. In this case, the fall prevention unit 1010 is attached to each scaffold unit 120. Thereby, also when the fall prevention part 1010 is provided, the said scaffold part 120 can be rotated, without the said fall prevention part 1010 interfering.

以上説明したように、この発明にかかる実施の形態3の足場装置2300は、一対の足場部材121が、それぞれ、梯子部110に対する連結位置を回動中心として、当該一対の足場部材121の延出方向が梯子部110の長さ方向に平行な状態となる第1の位置と、当該一対の足場部材121が相反する方向に延出する状態となる第2の位置と、の間で回動可能に設けられていることを特徴としている。   As described above, in the scaffold device 2300 according to the third embodiment of the present invention, the pair of scaffold members 121 is extended from the pair of scaffold members 121 with the connection position with respect to the ladder portion 110 as the rotation center. Rotation is possible between a first position where the direction is parallel to the length direction of the ladder portion 110 and a second position where the pair of scaffolding members 121 extends in opposite directions. It is characterized by being provided.

この発明にかかる実施の形態3の足場装置2300によれば、たとえば、地上から所望の位置まで足場を吊り上げる際や足場装置2300の運搬の際など、足場装置2300を作業に使用しない場合は、足場部120を第1の位置に位置づけることにより足場装置2300の体積を小さくすることができる。これにより、吊り上げ時などに風圧によって足場装置2300が揺れて不安定になるなどの、風圧による足場装置2300への影響を一層低減することができる。   According to the scaffold device 2300 of the third embodiment of the present invention, for example, when the scaffold device 2300 is not used for work, such as when the scaffold is lifted from the ground to a desired position or when the scaffold device 2300 is transported, By positioning the part 120 at the first position, the volume of the scaffold device 2300 can be reduced. As a result, it is possible to further reduce the influence of the wind pressure on the scaffold device 2300, such as when the scaffold device 2300 is shaken and unstable due to the wind pressure during lifting.

また、風圧による足場装置2300への影響を一層低減することができるので、足場装置2300の架け替え作業をおこなう場合にも、風圧によって足場装置2300が揺れて不安定になることを抑制し、当該架け替え作業にかかる作業員の負担軽減を図ることができる。   In addition, since the influence of the wind pressure on the scaffold device 2300 can be further reduced, even when the scaffold device 2300 is replaced, the scaffold device 2300 is prevented from shaking and becoming unstable due to the wind pressure. It is possible to reduce the burden on workers involved in the replacement work.

以上のように、この発明にかかる足場装置は、作業時に設置する足場装置に有用であり、特に、海峡横断鉄塔のような極めて高い位置でおこなう作業に用いる足場装置に適している。   As described above, the scaffold device according to the present invention is useful for a scaffold device installed at the time of work, and is particularly suitable for a scaffold device used for work performed at an extremely high position such as a strait crossing tower.

100 足場装置
110 梯子部
111 支柱
112 横桟
113 吊り部材
120 足場部
121 足場部材
122 拡張用足場部材
123 ローラー
130 手すり部材
131 支持部材
132 連結部材
133 筋交い部材
401 ロック機構
402 貫通孔
403 ロックピン
1000 足場装置
1010 落下防止部
1011 枠部材
1012 落下防護ネット
2300 足場装置
DESCRIPTION OF SYMBOLS 100 Scaffolding device 110 Ladder part 111 Post 112 Side rail 113 Hanging member 120 Scaffolding part 121 Scaffolding member 122 Expansion scaffolding member 123 Roller 130 Handrail member 131 Support member 132 Connecting member 133 Brace member 401 Lock mechanism 402 Through hole 403 Lock pin 1000 Scaffolding Device 1010 Fall prevention unit 1011 Frame member 1012 Fall protection net 2300 Scaffolding device

Claims (5)

一対の支柱の間に設けられた複数の横桟を備え、当該一対の支柱の長さ方向における一端側に設けられた吊り部材を備える梯子部と、
前記梯子部の一面側と他面側とにそれぞれ設けられ、一端部が前記梯子部の長さ方向における前記吊り部材とは反対側に連結され他端部が前記梯子部との連結位置から離間する方向に延出する、略板形状をなす一対の足場部材を備えた足場部と、
を備え、
前記足場部は、前記一対の足場部材のそれぞれに連結され、連結された前記足場部材に対して当該足場部材の延出方向に沿ってスライド可能に設けられた、略板形状をなす拡張用足場部材を備えたことを特徴とする足場装置。
A ladder unit including a plurality of horizontal rails provided between the pair of columns, and a suspension unit provided with a suspension member provided on one end side in the length direction of the pair of columns;
Provided on one side and the other side of the ladder part, one end is connected to the side opposite to the suspension member in the length direction of the ladder part, and the other end is separated from the connection position with the ladder part. A scaffolding portion comprising a pair of scaffolding members that extend in a direction to form a substantially plate shape;
With
The scaffold portion is connected to each of the pair of scaffold members, and is an extension scaffold having a substantially plate shape provided to be slidable along the extending direction of the scaffold member with respect to the connected scaffold members. A scaffold device comprising a member.
前記拡張用足場部材は、前記足場部材の板厚方向に沿って複数積層され、それぞれが前記足場部材側の前記拡張用足場部材に対して当該足場部材の延出方向に沿ってスライド可能に設けられていることを特徴とする請求項1に記載の足場装置。   A plurality of the extension scaffold members are stacked along the plate thickness direction of the scaffold member, and each is provided to be slidable along the extension direction of the scaffold member with respect to the extension scaffold member on the scaffold member side. The scaffold device according to claim 1, wherein the scaffold device is provided. 前記一対の足場部材は、それぞれ、前記梯子部に対する連結位置を回動中心として、当該一対の足場部材の延出方向が前記梯子部の長さ方向に平行な状態となる第1の位置と、当該一対の足場部材が相反する方向に延出する状態となる第2の位置と、の間で回動可能に設けられていることを特徴とする請求項1または2に記載の足場装置。   Each of the pair of scaffold members has a first position where the extending direction of the pair of scaffold members is parallel to the length direction of the ladder portion, with the connection position with respect to the ladder portion as a rotation center. The scaffold device according to claim 1 or 2, wherein the scaffold device is provided so as to be rotatable between a second position where the pair of scaffold members extends in opposite directions. 前記足場部は、
前記足場部材に設けられて、当該足場部材がなす板面から起立する手すり部材と、
前記拡張用足場部材に設けられて、当該拡張用足場部材がなす板面から起立する手すり部材と、
を備えたことを特徴とする請求項1〜3のいずれか一つに記載の足場装置。
The scaffold part is
A handrail member provided on the scaffold member and standing from a plate surface formed by the scaffold member;
A handrail member provided on the expansion scaffold member and standing from a plate surface formed by the expansion scaffold member;
The scaffold device according to any one of claims 1 to 3, further comprising:
網状部材を備え、当該網状部材を前記手すり部材の起立面内に格納する格納位置と、当該網状部材を前記手すり部材に沿って展開する展開位置と、に位置づけられる落下防止部を備えたことを特徴とする請求項4に記載の足場装置。   It has a net-like member, and has a fall prevention part positioned at a storage position where the net-like member is stored in an upright surface of the handrail member and a deployment position where the net-like member is deployed along the handrail member. The scaffold device according to claim 4, wherein
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JP2016211185A (en) * 2015-05-01 2016-12-15 株式会社丸高工業 Service gondola
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109707147A (en) * 2018-12-10 2019-05-03 筑梦高科建筑有限公司 Exterior wall carrying platform
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