JPH062425A - Scaffold having working floor which can be raised to high position, and foldable scaffold having working floor which can be raised to high position - Google Patents

Abstract

PURPOSE:To enhance the safety of working by fitting support columns and legs for supporting a working floor into combined pipe pillars each composed of a pair of two pipe members, and by joining the pipe pillars by truss beams. CONSTITUTION:Four combined pipe pillars 1a, 1b each composed of a pair of rectangular pipes are planted as four corner pillars, and are joined together by means of truss beams 11 including diagonal members. Further, a leg 3 is fitted in one of the rectangular pipes of each of the combined pipe pillars 1a, 1b, and a support column 10 for supporting a working floor 4 is fitted in the other one of the rectangular pipes thereof. Further, a stopper device for fixing pay-out lengths of the leg 3 and the support column 10 is provided to the rectangular pipes of each of the combined pipe pillars 1a, 1b. Accordingly, the introduction and withdrawal of the scaffold can be facilitated, thereby it is possible to build a temporary scaffold for a high place work in a short time.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は主に建築工事での使用に
提供される作業床を高くできる足場及び作業床を高くで
きる折り畳み足場に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a scaffold capable of raising a working floor and a folding scaffold capable of raising a working floor, which are provided mainly for use in construction work.

【０００２】[0002]

【従来の技術】従来、作業床を高くできる足場には、パ
イプを二重に嵌装させた脚（通常、足場一台に４本）が
使用されている。これによれば、作業床を支える軸組は
前記脚の外管同士を梁材等の横架材で剛接したものであ
って、この外管の下端には通常キャスターが備え付けら
れる。内管の上端は作業床の裏面に固着し、内管を外管
から繰り出すことによって作業床を高くすることができ
るのである。2. Description of the Related Art Conventionally, legs with double-fitted pipes (usually, four legs per scaffold) have been used for scaffolds capable of raising work floors. According to this, the framework supporting the working floor is one in which the outer pipes of the legs are rigidly contacted with each other by a horizontal member such as a beam, and a caster is usually attached to the lower end of the outer pipe. The upper end of the inner pipe is fixed to the back surface of the working floor, and the working floor can be raised by feeding the inner pipe from the outer pipe.

【０００３】[0003]

【発明が解決しようとする課題】しかし、パイプを二重
に嵌装させた脚では、現場での足場の使用態様に限界が
ある。それは、内装工事ではスラブの上げ裏から、床面
に近い幅木に至るまで、施工する高さか業種によって様
々である（施工頻度の高い高さは施工業種ごとに異なる
から）のに対し、上記従来の脚では、二重管の外管の長
さにより足場の最低高さが決まり、足場の最高高さは最
低高さの２倍と自ずと決定する。これは、パイプを二重
に嵌装させた脚の特質から当然の帰結ではある。つま
り、完全に二重に嵌装させた脚の長さを１単位とすれ
ば、この脚を最高限度に伸ばしたとしても脚の長さは２
単位以上にはならないということである。言葉を代えれ
ば、足場の作業床が最も低い場合に、この足場の作業床
に立っての高位（天井工事等）、この足場の作業床に座
っての中位、この足場から下りての低位に至る範囲の作
業が最適に行えるように配慮された足場の高さを２倍に
勘定しても、得れる足場のの最高高さは、大したことは
ないのである。脚を３重管や４重管にすれば１単位の脚
長が３単位や４単位以上にもなろうが、この方式では、
継ぎ目のクリアランスが相乗して脚の層間変形角が増大
するので、不安定な脚となるし、細長比が大となって座
屈し易くなるという問題も発生する。継ぎ目の面精度を
高め、上記層間変形角の増大の問題の解決を図ることも
考えられるが、面精度のある脚になればなるほど、脚の
繰り出しに同時性が要求され、作業床の水平度を保持さ
せながら、同時に４本の脚を下方に繰り出すことは至難
の業であり、実際問題として、悪条件（ペンキが付着し
たり、損傷を受け易い）の重なる現場では現実的でな
い。従来技術はこれらのジレンマに陥り、これらの個々
の課題を同時に解決し得る足場は未だ案出されていな
い。However, the legs in which the pipes are fitted doubly have a limitation in the usage mode of the scaffold in the field. In the interior work, from the back of the slab to the skirting close to the floor, it varies depending on the height or type of construction (since the height at which construction is frequently done differs depending on the construction type). In the conventional leg, the minimum height of the scaffold is determined by the length of the outer tube of the double pipe, and the maximum height of the scaffold is naturally determined to be twice the minimum height. This is a natural consequence of the nature of the legs with double-fitted pipes. In other words, if the length of a completely double-fitted leg is 1 unit, even if this leg is extended to the maximum limit, the length of the leg is 2
It means that it does not exceed the unit. In other words, when the work floor of the scaffold is the lowest, high standing on the work floor of this scaffold (ceiling work, etc.), medium sitting on the work floor of this scaffold, low going down from this scaffold. Even if the scaffolding height is doubled so that the work in the range up to can be optimally performed, the maximum height of the scaffolding obtained is not great. If the legs are triple pipes or quadruple pipes, the leg length of 1 unit will be 3 units or 4 units or more, but with this method,
Since the clearance between the seams synergistically increases the inter-layer deformation angle of the leg, the leg becomes unstable, and the slenderness ratio becomes large, which causes a problem of buckling. It is possible to improve the surface accuracy of the seam and solve the problem of the increase in the interlayer deformation angle, but the more accurate the leg becomes, the more simultaneous the legs need to be extended, and the levelness of the work floor is increased. It is extremely difficult to extend the four legs at the same time while holding the same, and as a practical problem, it is not realistic at a site where bad conditions (paint is easily attached or is easily damaged) overlap. The prior art falls into these dilemmas, and no scaffold capable of simultaneously solving these individual problems has been devised.

【０００４】[0004]

【課題を解決するための手段】そこで本発明は上記の欠
点を除去し、問題点を解決するために、パイプ部材を二
本一組にしたコンネクティング複合パイプ柱をトラス梁
で接合し、前記コンネクティング複合パイプ柱の一本の
パイプ部材には、下方に繰り出せる脚を嵌装し、他の一
本のパイプ部材には、作業床を担持する支柱を嵌装し、
これらの脚と支柱の繰り出し長さを固定できるストッパ
ー装置を前記パイプ部材に施装したことを特徴とする作
業床を高くできる足場と、パイプ部材を二本一組にした
コンネクティング複合パイプ柱を設け、該コンネクティ
ング複合パイプ柱二組をトラス梁で接合すると共に、こ
れら二組のコンネクティング複合パイプ柱のそれぞれ一
本のパイプ部材には、作業床を懸垂可能に枢着する支柱
を嵌装させ、他の一本のパイプ部材には下方に繰り出せ
る脚を嵌装させると共に、この二組のコンネクティング
複合パイプ柱各々に梁ブラケットを突設し、この梁ブラ
ケットに対し、トラス梁の一方の端を枢着させ、該トラ
ス梁の他方の端にパイプ部材を二本一組にした別のコン
ネクティング複合パイプ柱を接合し、このコンネクティ
ング複合パイプ柱の一本のパイプ部材には、下方に繰り
出せる脚を嵌装し、他の一本のパイプ部材には、作業床
の裏面を上端で受ける支柱を嵌装させ、脚と支柱の繰り
出し長さを固定できるストッパー装置を前述の各々のパ
イプ部材に施装したことを特徴とする作業床を高くでき
る折り畳み足場と、パイプ部材を二本一組にしたコンネ
クティング複合パイプ柱を設け、該コンネクティング複
合パイプ柱二組をトラス梁で接合すると共に、これら二
組のコンネクティング複合パイプ柱のそれぞれ一本のパ
イプ部材には、作業床を懸垂可能に枢着させた支柱を嵌
装させ、他の一本のパイプ部材には下方に繰り出せる脚
を嵌装させると共に、この二組のコンネクティング複合
パイプ柱各々に梁ブラケットを突設し、この梁ブラケッ
トに対し、トラス梁の一方の端を枢着させ、該トラス梁
の他方の端にパイプ部材を二本一組にした別のコンネク
ティング複合パイプ柱を接合し、このコンネクティング
複合パイプ柱の一本のパイプ部材には、下方に繰り出せ
る脚を嵌装し、他の一本のパイプ部材には、作業床の裏
面を上端で受ける支柱を嵌装させ、脚と支柱の繰り出し
長さを固定できるストッパー装置を前述の各々のパイプ
部材に施装した足場二台を、作業床を懸垂可能に枢支す
る支柱が嵌入する側のコンネクティング複合パイプ柱同
士で背中合わせに接合したことを特徴とする作業床を高
くできる折り畳み足場と、上記の作業床を高くできる折
り畳み足場において、枢着させたトラス梁の端に接合す
るコンネクティング複合パイプ柱同士を取り外し又は折
り畳み可能なトラス梁で連結補剛することとする折り畳
み足場と、上記の作業床を高くできる足場又は折り畳み
足場において、複合パイプ足場からの支柱の繰り出しを
助勢させるために、ガススプリング装置を施装させるこ
ととする作業床を高くできる足場又は作業床を高くでき
る折り畳み足場とを、それぞれ提供しようとするもので
ある。In order to eliminate the above-mentioned drawbacks and solve the problems, the present invention joins connecting composite pipe columns with a pair of pipe members by truss beams, One pipe member of the connecting composite pipe pillar is fitted with a leg that can be extended downward, and another pipe member is fitted with a pillar that carries a working floor,
A scaffolding capable of raising the working floor, characterized in that the pipe member is provided with a stopper device capable of fixing the extension length of these legs and columns, and a connecting composite pipe column in which two pipe members are paired. And connecting two sets of the connecting composite pipe columns with a truss beam, and each of the two connecting composite pipe columns has a pipe member that is pivotally attached to the pipe member so that the work floor can be suspended. And a leg that can be extended downward is fitted to the other one pipe member, and a beam bracket is projected on each of the two sets of connecting composite pipe columns, and a truss is attached to the beam bracket. One end of the beam is pivotally attached, and another connecting composite pipe column having two pipe members is joined to the other end of the truss beam, and the connecting composite pipe column is connected. One pipe member is fitted with a leg that can be extended downwards, and the other pipe member is fitted with a column that receives the back of the work floor at the upper end, and the extension length of the leg and column is fixed. Each of the above-mentioned pipe members is provided with a possible stopper device, and a folding scaffold capable of raising the work floor, and a connecting composite pipe column in which two pipe members are provided are provided. Two sets of composite pipe columns are joined by truss beams, and one pipe member of each of these two sets of connecting composite pipe columns is fitted with a support column pivotably attached to the work floor so that it can be suspended. One pipe member is fitted with a leg that can be extended downward, and a beam bracket is projected on each of these two sets of connecting composite pipe columns, and one end of the truss beam is attached to this beam bracket. Pivot Then, another connecting composite pipe column in which two pipe members are paired is joined to the other end of the truss beam, and the connecting composite pipe column can be extended downward to one pipe member. The legs are fitted, and the other one pipe member is fitted with a strut that receives the back side of the work floor at the upper end, and a stopper device that can fix the extension length of the leg and the strut is attached to each of the above-mentioned pipe members. A folding scaffold that can raise the work floor, characterized in that two scaffolds provided are joined back-to-back with connecting composite pipe columns on the side where the columns supporting the work floor to be suspended are fitted. In a folding scaffolding that can raise the working floor of a vehicle, the connecting composite pipe columns that are joined to the ends of the truss beams that are pivotally attached can be detached or connected by a foldable truss beam. In scaffolding or folding scaffolding that can raise the work platform and the work floor, the scaffolding or work floor that is provided with a gas spring device in order to assist the extension of the columns from the composite pipe scaffolding It is intended to provide a folding scaffold that can increase the height of each.

【０００５】[0005]

【実施例】先ず作業床を高くできる足場について一実施
例を図１に基づいて説明すると、角パイプを二本一組に
並設したコンネクティング複合パイプ柱（１）を四本の
隅柱として配設し、これらを斜材を入れたトラス梁
（２）で接合し、これらのコンネクティング複合パイプ
柱（１）のうち、一本の角パイプには下方に繰り出せる
脚（３）を嵌装し、他のもう一本の角パイプには、作業
床（４）を担持する支柱（５）を嵌装させる。そして、
これらの脚（３）と支柱（５）の繰り出し長さを固定で
きるストッパー装置（６）をそれぞれのコンネクティン
グ複合パイプ柱（１）の角パイプに施装する。ストッパ
ー装置（６）には閂を内蔵させ、コンネクティング複合
パイプ柱（１）の角パイプ、脚（３）及び支柱（５）そ
れぞれには、一定の関係で整合させた貫穴を穿設する。
前記ストッパー装置（６）の閂を貫穴に貫入させて、そ
の脚（３）と支柱（５）とをコンネクティング複合パイ
プ柱（１）から繰り出した長さを固定させるものとす
る。EXAMPLE First, an example of a scaffold capable of raising a work floor will be described with reference to FIG. 1. A connecting composite pipe column (1) in which two square pipes are arranged side by side is provided as four corner columns. And connecting them with a truss beam (2) containing diagonal members, and among these connecting composite pipe columns (1), one square pipe has a leg (3) that can be extended downward. The other square pipe is fitted with a column (5) carrying a working floor (4). And
A stopper device (6) capable of fixing the feeding length of the leg (3) and the column (5) is attached to the square pipe of each connecting composite pipe column (1). The stopper device (6) has barbs built therein, and the square pipes, legs (3) and columns (5) of the connecting composite pipe column (1) are provided with through holes aligned in a certain relationship. To do.
The barbs of the stopper device (6) are inserted into the through holes to fix the lengths of the legs (3) and the columns (5) fed out from the connecting composite pipe column (1).

【０００６】次ぎに作業床を高くできる折り畳み足場に
ついて一実施例を図２に基づいて説明すると、角パイプ
を二本一組にしたコンネクティング複合パイプ柱（１）
二組を斜材を入れたトラス梁（２）で接合すると共に、
該コンネクティング複合パイプ柱（１）のそれぞれ一本
の角パイプには、キャンティレバー（７）付きの支柱
（８）を嵌装させる。この支柱（８）に形設させたキャ
ンティレバー（７）の端には、作業床（４）を懸垂可能
に枢着させる。他の一本の角パイプには下方に繰り出せ
る脚（３）を嵌装させると共に、この二組のコンネクテ
ィング複合パイプ柱（１）各々に梁ブラケット（９）を
突設し、この梁ブラケット（９）に対し、別のトラス梁
（２ａ）（２ｂ）の一方の端を枢着させる。このトラス
梁（２ａ）（２ｂ）の他方の端には、別のコンネクティ
ング複合パイプ柱（１ａ）（１ｂ）を接合し、このコン
ネクティング複合パイプ柱（１ａ）（１ｂ）の一本の角
パイプには、下方に繰り出せる脚（３）を嵌装し、他の
もう一本の角パイプには、作業床（４）の裏面を上端で
受ける支柱（１０）を嵌装させる。脚（３）と支柱
（８）（１０）の繰り出し長さを固定するストッパー装
置（６）を前述のコンネクティング複合パイプ柱（１）
（１ａ）（１ｂ）の各々の角パイプに施装して成る足場
二台を、作業床（４）を懸垂可能に枢支する支柱（８）
が嵌入する側のコンネクティング複合パイプ柱（１）同
士で背中合わせに接合させた折り畳み足場である。又、
この折り畳み足場に於いて、コンネクティング複合パイ
プ柱（１ａ）（１ｂ）間を繋ぐトラス梁（１１）を、片
開き式に折り畳めるように一方のトラス梁（２ａ）に枢
着する。又、前述のキャンティレバー（７）付きの支柱
（８）の繰り出しを助勢するために、伸縮筋交い（１
２）にガススプリング（１３）を仕組んだ装置を設置す
る。この伸縮筋交い（１２）の一方はコンネクティング
複合パイプ柱（１）に枢着させて反力をとり、他方をキ
ャンティレバー（７）付きの支柱（８）に枢着させる。Next, an example of a folding scaffold capable of raising the working floor will be described with reference to FIG. 2. A connecting composite pipe column (1) having a pair of square pipes.
Join the two sets with a truss beam (2) containing diagonal members,
A column (8) with a cantilever (7) is fitted to each one square pipe of the connecting composite pipe column (1). A work floor (4) is pivotably attached to the end of a cantilever (7) formed on the column (8) so as to be suspended. A leg (3) that can be extended downward is fitted to the other one square pipe, and a beam bracket (9) is projectingly provided on each of the two sets of connecting composite pipe columns (1). One end of another truss beam (2a) (2b) is pivotally attached to (9). To the other end of the truss beam (2a) (2b), another connecting composite pipe column (1a) (1b) is joined, and one connecting composite pipe column (1a) (1b) is connected. The square pipe is fitted with a leg (3) which can be extended downward, and the other square pipe is fitted with a column (10) for receiving the back surface of the work floor (4) at its upper end. The above-mentioned connecting composite pipe column (1) is provided with the stopper device (6) for fixing the feeding length of the leg (3) and the columns (8) and (10).
A pillar (8) that pivotally supports two scaffolds formed by mounting each of the square pipes (1a) and (1b) so that the work floor (4) can be suspended.
It is a folding scaffold in which the connecting composite pipe pillars (1) on the side where is inserted are joined back to back. or,
In this folding scaffold, a truss beam (11) connecting between the connecting composite pipe columns (1a) and (1b) is pivotally attached to one truss beam (2a) so that it can be folded in a single-opening manner. Further, in order to assist the extension of the support column (8) with the above-mentioned cantilever (7), the expansion brace (1
Install a device with a gas spring (13) in 2). One of the elastic braces (12) is pivotally attached to the connecting composite pipe column (1) to take a reaction force, and the other is pivotally attached to the column (8) with the cantilever (7).

【０００７】図１乃至図２に於いて、コンネクティング
複合パイプ柱（１）（１ａ）（１ｂ）の長さを１単位と
した場合、これに嵌入している脚（３）及び支柱（５）
（８）（１０）をそれぞれ、脚は下方向に、支柱は上方
向に繰り出せば、１単位の長さに従う足場の高さが、略
３単位に近い長さに従う足場の高さとなる。このように
作業床（４）を支える軸組みを最高限度の長さにした場
合、トラス梁（２）（１１）の位置は、高さ方向の軸組
みの全長からいえば、ちょうどその中間に配置すること
となる。このことは、細長い材が中間で最もはらむ現
象、つまり座屈を効果的に防止することができるという
ことなのである。普通の面精度の二重管に生ずるクリア
ランスから生起する層間変形角も、脚と支柱とはそれぞ
れ独立したクリアランスをコンネクティング複合パイプ
柱との二者関係で形成しているので、継ぎ目のクリアラ
ンスが相乗して脚の層間変形角が増大し、不安定な脚と
なることがない。1 and 2, when the length of the connecting composite pipe column (1) (1a) (1b) is set as one unit, the leg (3) and the column ( 5)
(8) If the legs are respectively extended downward and the columns are extended upward, the height of the scaffold according to the length of 1 unit becomes the height of the scaffold according to the length of approximately 3 units. In this way, when the framework supporting the work floor (4) is set to the maximum length, the position of the truss beams (2) (11) is exactly in the middle of it in terms of the total length of the framework in the height direction. Will be arranged. This means that it is possible to effectively prevent the phenomenon in which the slender member is the most intermediate in the middle, that is, buckling. The interlaminar deformation angle that occurs from the clearance that occurs in a normal double pipe with surface accuracy also forms a clearance independent of the leg and the strut in a bilateral relationship with the connecting composite pipe column, so the clearance of the joint is Synergistically increases the inter-layer deformation angle of the leg, and the leg does not become unstable.

【０００８】本発明の足場を折り畳むには、先ず作業床
（４）の端を持ち上げて、作業床（４）の裏面と支柱
（１０）の上端との衝止状態を解除し、この状態を維持
しながら、作業床（４）を懸垂可能に枢支する支柱
（８）が嵌入する側のコンネクティング複合パイプ柱
（１）を連結するトラス梁（２）に向けて、トラス梁
（２ａ）（２ｂ）を互い違いに重ねるように水平方向に
畳み込む。次ぎに、作業床（４）を持ち上げていた手を
下ろし、作業床（４）がキャンティレバー（７）に懸垂
された状態となるまでこれを垂直方向に畳み込む。作業
床（４）は支柱（８）に枢着し、かつ、支柱（８）には
伸縮筋交い（１２）を介してガススプリング（１３）の
力が効いているので、上記懸垂状態の作業床に対して、
手で押し下げる力を多少加え、支柱（８）をコンネクテ
ィング複合パイプ柱（１）の角パイプ内に向けて完全に
嵌入させると共に、ストッパー装置（６）によってその
状態を固定する。このストッパー装置（６）を解除する
と、支柱（８）はガススプリング（１３）の力が効いて
いる伸縮筋交い（１２）の作用でホップアップするの
で、後は所望する脚の長さになるまで、手の力を介添え
させて支柱（８）を繰り出し、ストッパー装置（６）を
効かせてその長さを固定する。前述の折り畳みの手順の
逆を行えば足場を展開させることができる。コンネクテ
ィング複合パイプ柱（１ａ）（１ｂ）間を繋ぐトラス梁
（１１）は、片開き式に折り畳まれており、これを足場
の展開過程で展開させ、コンネクティング複合パイプ柱
（１ａ）（１ｂ）間に掛着すると、水平荷重に対してよ
り一層安定的な足場となる。In order to fold the scaffold of the present invention, first, the end of the work floor (4) is lifted to release the state where the back surface of the work floor (4) and the upper end of the support column (10) are in an impulsive state. While maintaining, the truss beam (2a) is directed toward the truss beam (2) connecting the connecting composite pipe column (1) on the side where the support column (8) pivotably supporting the work floor (4) is inserted. ) (2b) is folded in the horizontal direction so as to be stacked alternately. Next, the hand lifting the work floor (4) is lowered, and the work floor (4) is vertically folded until it is suspended by the cantilever (7). The work floor (4) is pivotally attached to the support column (8), and the force of the gas spring (13) is exerted on the support column (8) through the expansion brace (12), so that the work floor in the suspended state. Against
A slight force is applied by hand to completely fit the column (8) into the square pipe of the connecting composite pipe column (1) and fix the state by the stopper device (6). When the stopper device (6) is released, the support column (8) hops up due to the action of the expansion brace (12) exerted by the force of the gas spring (13), and then the leg length is adjusted to the desired length. , The column (8) is extended with the help of the hand, and the stopper device (6) is activated to fix the length. The scaffold can be deployed by reversing the above-mentioned folding procedure. The truss beam (11) that connects the connecting composite pipe columns (1a) and (1b) is folded in a single-opening type, and is expanded in the process of developing the scaffolding to connect the connecting composite pipe columns (1a). If it hangs between (1b), it will become a more stable scaffold with respect to a horizontal load.

【０００９】[0009]

【発明の効果】普通の建物におけるスラブから幅木に至
る範囲の作業は、２単位の脚の長さを確保できる作業床
で十分であるが、特殊な立面計画が図られた建物（ピロ
ティ、吹き抜け等）や階高を高くした建物が最近多くな
っており、２単位の脚の長さでは対処できないケースが
増加している。本発明の足場があれば、３単位の脚の長
さを発揮できる能力を常に温存しているので、いざ、現
場の状況が変化した場合、高さが足りない２単位の足場
を撤去して、新たに特別のローリングタワーを組んだり
搬入したりする必要がなくなる。脚の長さを長くすれば
するほど、足場は不安定になり易いが本発明は、脚の中
間に配置されることとなるトラス梁によって揺れや不安
定となる要因を解消することができ、安全性に優れ、搬
入や撤去し易く又短時間・少人数で大面積にフロアーに
高所作業用の仮設足場を構築できる。効率的な工事の進
捗に直接的にも間接的にも貢献できる。すなわち、仮設
足場構築に掛かっていた人手を削減し直接的な工事原価
の削減につながるし、本発明の足場そのものは搬入や撤
去がスピーディーに行えるし、ローリングタワー等の特
別な足場に総入れ替えの必要がなくなり、エレベーター
等を長時間独占して多業種の工事進行を一時ストップさ
せるといった無駄も解消できる。[Effects of the Invention] For the work in the range from the slab to the skirting board in a normal building, a work floor that can secure a leg length of 2 units is sufficient, but a building with a special elevation plan (piloti The number of buildings with high floor height has increased recently, and the number of cases in which two units of leg length cannot be dealt with is increasing. With the scaffold of the present invention, we always preserve the ability to exert a leg length of 3 units, so if the situation on the scene changes, remove the 2 units scaffold that is not high enough. , You don't need to assemble or carry in a new special rolling tower. The longer the leg length, the more likely the scaffold becomes unstable, but the present invention can eliminate the factors that cause shaking and instability due to the truss beam that is arranged in the middle of the leg, It is highly safe, easy to carry in and out, and it is possible to build a temporary scaffolding for working in high places on a large floor in a short time with a small number of people. It can contribute directly or indirectly to the progress of efficient construction. That is, the manpower required for constructing the temporary scaffolding can be reduced, which leads to a direct reduction in the construction cost.The scaffolding of the present invention itself can be carried in and removed speedily, and a special scaffolding such as a rolling tower can be totally replaced. It is no longer necessary, and the waste of monopolizing elevators for a long time and temporarily stopping the progress of construction in multiple industries can be eliminated.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の足場の実施例を示す斜視図。FIG. 1 is a perspective view showing an embodiment of a scaffold of the present invention.

【図２】本発明の折り畳み足場の実施例を示す正面図。FIG. 2 is a front view showing an embodiment of the folding scaffold of the present invention.

【図３】本発明の折り畳み足場の実施例を示す正面図。FIG. 3 is a front view showing an embodiment of the folding scaffold of the present invention.

【図４】本発明の折り畳み足場の実施例を示す側面図。FIG. 4 is a side view showing an embodiment of the folding scaffold of the present invention.

【図５】本発明の折り畳み足場の折り畳みの過程を示す
平面図。FIG. 5 is a plan view showing a process of folding the folding scaffold of the present invention.

【符号の説明】[Explanation of symbols]

１ コンネクティング複合パイプ柱 １ａコンネクティング複合パイプ柱 １ｂコンネクティング複合パイプ柱 ２ トラス梁 ２ａトラス梁 ２ｂトラス梁 ３ 脚 ４ 作業床 ５ 支柱 ６ ストッパー装置 ７ キャンティレバー ８ 支柱 ９ 梁ブラケット １０ 支柱 １１ トラス梁 １２ 伸縮筋交 １３ ガススプリング 1 Connecting Composite Pipe Column 1a Connecting Composite Pipe Column 1b Connecting Composite Pipe Column 2 Truss Beam 2a Truss Beam 2b Truss Beam 3 Legs 4 Working Floor 5 Struts 6 Stopper Device 7 Cantilever 8 Struts 9 Beam Brackets 10 Struts 11 Truss beam 12 Stretchable braces 13 Gas spring

Claims (5)

【特許請求の範囲】[Claims] 【請求項１】 パイプ部材を二本一組にしたコンネクテ
ィング複合パイプ柱をトラス梁で接合し、前記コンネク
ティング複合パイプ柱の一本のパイプ部材には、下方に
繰り出せる脚を嵌装し、他の一本のパイプ部材には、作
業床を担持する支柱を嵌装し、これらの脚と支柱の繰り
出し長さを固定できるストッパー装置を前記パイプ部材
に施装したことを特徴とする作業床を高くできる足場。1. A connecting composite pipe column having a set of two pipe members is joined by a truss beam, and a leg that can be extended downward is fitted to one pipe member of the connecting composite pipe column. However, the other one pipe member is fitted with a strut carrying a work floor, and a stopper device capable of fixing the feeding length of these legs and the strut is provided on the pipe member. A scaffold that can raise the work floor. 【請求項２】 パイプ部材を二本一組にしたコンネクテ
ィング複合パイプ柱を設け、該コンネクティング複合パ
イプ柱二組をトラス梁で接合すると共に、これら二組の
コンネクティング複合パイプ柱のそれぞれ一本のパイプ
部材には、作業床を懸垂可能に枢着する支柱を嵌装さ
せ、他の一本のパイプ部材には下方に繰り出せる脚を嵌
装させると共に、この二組のコンネクティング複合パイ
プ柱各々に梁ブラケットを突設し、この梁ブラケットに
対し、トラス梁の一方の端を枢着させ、該トラス梁の他
方の端にパイプ部材を二本一組にした別のコンネクティ
ング複合パイプ柱を接合し、このコンネクティング複合
パイプ柱の一本のパイプ部材には、下方に繰り出せる脚
を嵌装し、他の一本のパイプ部材には、作業床の裏面を
上端で受ける支柱を嵌装させ、脚と支柱の繰り出し長さ
を固定できるストッパー装置を前述の各々のパイプ部材
に施装したことを特徴とする作業床を高くできる折り畳
み足場。2. A connecting composite pipe column in which two pipe members are provided as a set, two connecting composite pipe columns are joined by a truss beam, and these two sets of connecting composite pipe columns are connected. Each one of the pipe members is fitted with a strut that pivotally supports the work floor so that it can be suspended, and the other one of the pipe members is fitted with legs that can be extended downward. Beam brackets are projected on each of the composite pipe columns, one end of the truss beam is pivotally attached to the beam bracket, and the other end of the truss beam is provided with another pair of pipe members. The connecting composite pipe pillar is joined, one leg of the connecting composite pipe pillar is fitted with a leg that can be extended downward, and the other one pipe member is fitted with the back side of the work floor at the upper end. Fit the post received at A folding scaffold that can raise the working floor, which is equipped with a stopper device that can be mounted to fix the extending lengths of the legs and columns to each of the pipe members described above. 【請求項３】 パイプ部材を二本一組にしたコンネクテ
ィング複合パイプ柱を設け、該コンネクティング複合パ
イプ柱二組をトラス梁で接合すると共に、これら二組の
コンネクティング複合パイプ柱のそれぞれ一本のパイプ
部材には、作業床を懸垂可能に枢着させた支柱を嵌装さ
せ、他の一本のパイプ部材には下方に繰り出せる脚を嵌
装させると共に、この二組のコンネクティング複合パイ
プ柱各々に梁ブラケットを突設し、この梁ブラケットに
対し、トラス梁の一方の端を枢着させ、該トラス梁の他
方の端にパイプ部材を二本一組にした別のコンネクティ
ング複合パイプ柱を接合し、このコンネクティング複合
パイプ柱の一本のパイプ部材には、下方に繰り出せる脚
を嵌装し、他の一本のパイプ部材には、作業床の裏面を
上端で受ける支柱を嵌装させ、脚と支柱の繰り出し長さ
を固定できるストッパー装置を前述の各々のパイプ部材
に施装した足場二台を、作業床を懸垂可能に枢支する支
柱が嵌入する側のコンネクティング複合パイプ柱同士で
背中合わせに接合したことを特徴とする作業床を高くで
きる折り畳み足場3. A connecting composite pipe column comprising two pipe members as a set, two connecting composite pipe columns being joined by a truss beam, and these two sets of connecting composite pipe columns. Each one of the pipe members is fitted with a strut that pivotally supports the work floor so that it can be suspended, and the other one pipe member is fitted with legs that can be extended downward, and the two sets of A beam bracket is projectingly provided on each of the connecting composite pipe columns, and one end of the truss beam is pivotally attached to the beam bracket, and another pair of pipe members is formed at the other end of the truss beam. The connecting composite pipe pillar is joined, one leg of the connecting composite pipe pillar is fitted with a leg that can be extended downward, and the other one of the pipe members is the back side of the work floor. The stanchion received at the top Connecting on the side where the support pillars that suspendably suspend the work floor are fitted with the two scaffolds that are fitted to each of the above-mentioned pipe members with stopper devices that can fix the extension length of the legs and the support pillars. Folding scaffold that can raise the working floor characterized by joining back to back with composite pipe columns 【請求項４】 請求項２又は請求項３記載の枢着させた
トラス梁の端に接合するコンネクティング複合パイプ柱
同士を取り外し又は折り畳み可能なトラス梁で連結補剛
することを特徴とする請求項２又は請求項３記載の作業
床を高くできる折り畳み足場。4. The connecting composite pipe columns joined to the ends of the truss beams pivotally attached according to claim 2 or 3, are connected and stiffened by a truss beam that can be removed or folded. A folding scaffold capable of raising the work floor according to claim 2 or 3. 【請求項５】 複合パイプ足場からの支柱の繰り出しを
助勢させるために、ガススプリング装置を施装させたこ
とを特徴とする請求項１、請求項２、請求項３又は請求
項４記載の作業床を高くできる足場又は作業床を高くで
きる折り畳み足場。5. The work according to claim 1, claim 2, claim 3 or claim 4, wherein a gas spring device is provided in order to assist the extension of the column from the composite pipe scaffold. A scaffold that can raise the floor or a folding scaffold that can raise the work floor.