JP6842738B1 - Suspended scaffolding - Google Patents
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- JP6842738B1 JP6842738B1 JP2020187614A JP2020187614A JP6842738B1 JP 6842738 B1 JP6842738 B1 JP 6842738B1 JP 2020187614 A JP2020187614 A JP 2020187614A JP 2020187614 A JP2020187614 A JP 2020187614A JP 6842738 B1 JP6842738 B1 JP 6842738B1
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- 239000000725 suspension Substances 0.000 claims abstract description 67
- 238000010586 diagram Methods 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 26
- 239000002184 metal Substances 0.000 description 26
- 229910000831 Steel Inorganic materials 0.000 description 14
- 239000010959 steel Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 8
- 238000010276 construction Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910001335 Galvanized steel Inorganic materials 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000008397 galvanized steel Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Abstract
【課題】揚重機によって索条を上方に牽引して吊り足場を全体的に高所作業レベルに上昇させた後の足場を水平とすることができる吊り足場を提供する。【解決手段】対向して配設された長手方向のＸビーム１１及びＸビームと直角方向に対向して配設されたＹビーム１２からなる矩形状の枠体１３と、その枠体の上面に積層したデッキプレート１４と、を備えた矩形状の吊り足場１０をＸ方向に連結し、Ｘ方向の中央が上方に突出し山状に形成されたＸ連結吊り足場であって、Ｘ方向の連結は、逆Ｖ字状に形成されたＸ連結具をＸビームの内側に嵌入されるとともに、Ｘ連結具の両端下部は、Ｘビームの下面内側との間に遊間が形成された状態になっていることを特徴とする吊り足場。【選択図】図１PROBLEM TO BE SOLVED: To provide a suspended scaffold capable of leveling the scaffold after the rope is pulled upward by a lifting machine to raise the suspended scaffold to an aerial work level as a whole. SOLUTION: A rectangular frame 13 composed of an X beam 11 in the longitudinal direction arranged to face each other and a Y beam 12 arranged to face the X beam in the direction perpendicular to the X beam, and an upper surface of the frame. A rectangular suspension scaffold 10 provided with a laminated deck plate 14 is connected in the X direction, and the center of the X direction protrudes upward to form a mountain-shaped X-connection suspension scaffold. , The X connector formed in an inverted V shape is fitted inside the X beam, and the lower ends of both ends of the X connector are in a state where a play space is formed between the X connector and the inside of the lower surface of the X beam. A hanging scaffold that features that. [Selection diagram] Fig. 1
Description
本発明の吊り足場は、高速道路の工事や橋梁工事あるいは建築物の工事等でそれらの桁材や高欄等から下方に吊り下げて用いる吊り足場に関する。 The suspended scaffold of the present invention relates to a suspended scaffold used by suspending it downward from girders, balustrades, etc. in highway construction, bridge construction, building construction, and the like.
高速道路や橋梁等の工事をはじめとする各種の建設、土木工事では、吊り足場と称される足場を作り、その上で建設作業や改修工事等を行なうことが多い。
この吊り足場として、例えば以下のようなものがある。
適宜間隔離れて対向する二本の基材間に連結具を渡して長方形の枠状にした枠体の上に合板や金網等の足場板を取り付け、支持材から吊下げられた索条を足場板の連結具、あるいは、丸パイプに取り付けたリングに係止して同支持材の下に吊すものがある。
このような足場板は、連結具によって前後左右に連結固定しながら別の足場板と連結して、所望の広さ、所望形状の吊り足場を構築できるようにすることができる。
このような吊り足場の構築は、以下のようにして行なわれる。
まずは、二本の桁材等の支持材の対向位置にチェーン吊下用クランプを取付けてそれにチェーンを吊下げる。
そのチェーンを枠体の連結具や係止リングに掛けて、その枠体を支持材間に吊下げる。
次に、この枠体に取付けられている足場板の上に、作業者が乗って支持材の先方に別のクランプを取付け、それにチェーンを吊下げる。
このチェーンを別の枠体の連結具や係止リングに掛けて、その枠体を先に吊下げた枠体の横に吊下げる。
後で吊下げた枠体に取付けられている連結具を、先に吊下げた枠体に連結固定して、二つの枠体を幅方向に連結固定する。
このような作業を繰返して吊り足場を組立てる。
このような吊り足場の先行技術として例えば特許文献１（特許第５０９７３１３号公報）がある。
特許文献１には、作業床を形成するため足場板同士を相互連結するとともに、足場板を補強するため足場板の上側に水平に複数の横架材と、足場板を横架材の下側に懸架するための懸吊具と、を設け、横架材を揚重機の索条によって吊上げるための吊り金具で構成された吊り足場が記載されている。
しかし、このような吊り足場の架設方法は以下のような問題があった。
横架材に連結する懸吊具によって足場板を横架材の下側に懸架する配設や、構築物又は建設物に足場板を懸吊したあとに、懸吊具を解放して横架材を撤去することは煩わしい作業であり、作業員の足が横架材に引っ掛かって事故発生の原因となることもあった。
In various constructions and civil engineering works such as construction of highways and bridges, scaffolding called suspension scaffolding is often made, and construction work and repair work are often carried out on it.
As this hanging scaffold, for example, there are the following.
A scaffolding board such as plywood or wire mesh is attached on a rectangular frame by passing a connecting tool between two base materials facing each other at appropriate intervals, and a scaffolding is hung from a support material. There is a plate connector or a ring attached to a round pipe that is locked and hung under the support material.
Such a scaffolding board can be connected to another scaffolding board while being connected and fixed in the front-rear and left-right directions by a connecting tool so that a suspended scaffolding having a desired width and a desired shape can be constructed.
Construction of such a suspended scaffold is carried out as follows.
First, a chain suspension clamp is attached at a position facing the support members such as two girders, and the chain is suspended from the clamp.
The chain is hung on a connecting tool or a locking ring of the frame body, and the frame body is hung between the support members.
Next, an operator rides on the scaffolding plate attached to the frame body, attaches another clamp to the tip of the support material, and hangs the chain to it.
This chain is hung on a connector or a locking ring of another frame body, and the frame body is hung next to the frame body suspended earlier.
The connector attached to the frame body suspended later is connected and fixed to the frame body suspended first, and the two frames are connected and fixed in the width direction.
The hanging scaffold is assembled by repeating such work.
As a prior art of such a suspended scaffold, for example, Patent Document 1 (Patent No. 5097313) is available.
In Patent Document 1, scaffolding boards are interconnected to form a work floor, and a plurality of horizontal members are horizontally connected to the upper side of the scaffolding boards to reinforce the scaffolding boards, and the scaffolding boards are placed below the horizontal members. A suspension scaffold is described, which is provided with a suspension tool for suspending the horizontal member and is composed of a suspension metal fitting for suspending the horizontal member by a rope of a lifting machine.
However, such a method of erection of a suspended scaffold has the following problems.
The scaffolding board is suspended under the horizontal member by the suspension member connected to the horizontal member, or after the scaffolding board is suspended from the structure or the structure, the suspension member is released and the horizontal member is released. It was a cumbersome task to remove the suspension, and the scaffolding of the worker could get caught in the horizontal material and cause an accident.
しかしながら、特許文献１に記載された吊り足場には以下のような問題点がある。
すなわち、揚重機によって索条を上方に牽引して吊り足場を全体的に高所作業レベルに上昇させると、足場が自重により中央部が下方に落ち込んで湾曲する。
構築物又は建設物に足場板を懸吊した後に、足場上において桁にチェーン等で取り付ける作業を行う。
このような湾曲した吊り足場は、足場を桁にチェーン等で取り付ける作業において危険が伴う。
また、設定された足場にはシートを張り、小物の落下を防ぐとともに、雨勾配を確保するためにも、水平とすることが望ましい。
そこで、本発明は、上記問題点を解決するため、揚重機によって索条を上方に牽引して吊り足場を全体的に高所作業レベルに上昇させた後の足場を水平とすることができる吊り足場を提供することを目的とする。
However, the suspended scaffold described in Patent Document 1 has the following problems.
That is, when the rope is pulled upward by the lifting machine to raise the suspended scaffold to the aerial work platform as a whole, the central portion of the scaffold falls downward due to its own weight and curves.
After suspending the scaffolding board from the structure or the structure, the work of attaching the scaffolding to the girder with a chain or the like is performed.
Such a curved suspended scaffold is dangerous in the work of attaching the scaffold to the girder with a chain or the like.
In addition, it is desirable to put a sheet on the set scaffolding to prevent small items from falling and to keep it horizontal in order to secure a rain gradient.
Therefore, in order to solve the above problems, the present invention is capable of leveling the scaffolding after pulling the cord upward by a lifting machine to raise the suspended scaffolding to an aerial work level as a whole. The purpose is to provide a scaffolding.
本発明の吊り足場は、以下の特徴を有する。
（１）対向して配設された長手方向のＸビーム及び前記Ｘビームと直角方向に対向して配設されたＹビームからなる矩形状の枠体と、
その枠体の上面に積層したデッキプレートと、
を備えた矩形状の吊り足場をＸ方向及びＹ方向に連結し、
Ｘ方向の中央が上方に突出し山状に形成されたＸＹ連結吊り足場であって、
前記Ｘ方向の連結は、
逆Ｖ字状に形成されたＸ連結具を前記Ｘビームの内側に嵌入されるとともに、
前記Ｘ連結具の両端下部は、
前記Ｘビームの下面内側と遊間が形成された状態になっていることを特徴とする。
（２）対向して配設された長手方向のＸビーム及び前記Ｘビームと直角方向に対向して配設されたＹビームからなる矩形状の枠体と、
その枠体の上面に積層したデッキプレートと、
を備えた矩形状の吊り足場をＸ方向びＹ方向に連結し、
Ｘ方向の中央が上方に突出し山状に形成されたＸＹ連結吊り足場であって、
前記Ｘ方向の連結は、
逆Ｖ字状に形成されたＸ連結具を前記Ｘビームの内側に嵌入されるとともに、
前記Ｘ連結具の両端下部は、
前記Ｘビームの下面内側と遊間が形成された状態になっていることを特徴とする。
（３）対向して配設された長手方向のＸビーム及び前記Ｘビームと直角方向に対向して配設されたＹビームからなる矩形状の枠体と、
その枠体の上面に積層したデッキプレートと、
を備えた矩形状の吊り足場をＸ方向に連結したＸ連結吊り足場であって、
前記Ｘ方向の連結は、直線状に形成されたボックスの下面両端および上面中央に小片を設けたＸ連結具を前記Ｘビームの内側に嵌入されるとともに、
前記Ｘ連結具の両端下部は、
前記Ｘビームの下面内側と遊間が形成された状態になっていることを特徴とする。
（４）対向して配設された長手方向のＸビーム及び前記Ｘビームと直角方向に対向して配設されたＹビームからなる矩形状の枠体と、
その枠体の上面に積層したデッキプレートと、
を備えた矩形状の吊り足場をＸ方向及びＹ方向に連結したＸＹ連結吊り足場であって、
前記Ｘ方向の連結は、直線状に形成されたボックスの下面両端および上面中央に小片を設けたＸ連結具を前記Ｘビームの内側に嵌入されるとともに、
前記Ｘ連結具の両端下部は、
前記Ｘビームの下面内側と遊間が形成された状態になっていることを特徴とする。
The suspended scaffold of the present invention has the following features.
(1) A rectangular frame composed of an X beam in the longitudinal direction arranged to face each other and a Y beam arranged to face the X beam in the direction perpendicular to the X beam.
The deck plate laminated on the upper surface of the frame and
A rectangular hanging scaffold equipped with is connected in the X and Y directions,
It is an XY connection suspension scaffold with the center in the X direction protruding upward and formed in a mountain shape.
The connection in the X direction is
The X connector formed in an inverted V shape is fitted inside the X beam, and at the same time,
The lower ends of both ends of the X connector
It is characterized in that a play space is formed with the inside of the lower surface of the X beam.
(2) A rectangular frame composed of an X beam in the longitudinal direction arranged to face each other and a Y beam arranged to face the X beam in the direction perpendicular to the X beam.
The deck plate laminated on the upper surface of the frame and
A rectangular hanging scaffold equipped with is connected in the X and Y directions,
It is an XY connection suspension scaffold with the center in the X direction protruding upward and formed in a mountain shape.
The connection in the X direction is
The X connector formed in an inverted V shape is fitted inside the X beam, and at the same time,
The lower ends of both ends of the X connector
It is characterized in that a play space is formed with the inside of the lower surface of the X beam.
(3) A rectangular frame composed of an X beam in the longitudinal direction arranged to face each other and a Y beam arranged to face the X beam in the direction perpendicular to the X beam.
The deck plate laminated on the upper surface of the frame and
It is an X-connected suspension scaffold in which rectangular suspension scaffolds equipped with the above are connected in the X direction.
In the connection in the X direction, an X connector having small pieces provided at both ends of the lower surface and the center of the upper surface of the linearly formed box is fitted inside the X beam, and
The lower ends of both ends of the X connector
It is characterized in that a play space is formed with the inside of the lower surface of the X beam.
(4) A rectangular frame composed of an X beam in the longitudinal direction arranged to face each other and a Y beam arranged to face the X beam in the direction perpendicular to the X beam.
The deck plate laminated on the upper surface of the frame and
It is an XY connection suspension scaffold in which rectangular suspension scaffolds provided with the above are connected in the X direction and the Y direction.
In the connection in the X direction, an X connector having small pieces provided at both ends of the lower surface and the center of the upper surface of the linearly formed box is fitted inside the X beam, and at the same time.
The lower ends of both ends of the X connector
It is characterized in that a play space is formed with the inside of the lower surface of the X beam.
本発明の吊り足場は、揚重機によって索条を上方に牽引して吊り足場を全体的に高所作業レベルに上昇させた後の足場を水平とすることができるので、
足場上の種々の作業において安全である。
Since the suspended scaffold of the present invention can pull the cord upward by the lifting machine to raise the suspended scaffold to the aerial work level as a whole, the scaffold can be leveled.
Safe for various tasks on scaffolding.
＜実施形態１＞
＜基本吊り足場１０＞
図１に、基本吊り足場１０を示す。
（ａ）は表面図であり、（ｂ）は裏面図である。
基本吊り足場１０は、長手方向（Ｘ方向）に延設されるＸビーム１１と、幅方向（Ｙ方向）に延設されるＹビーム１２とで、矩形状の枠体１３を構成し、その枠体１３の表面に足場板となるデッキプレート１４が積層されている。
Ｘビーム１１は、基本吊り足場１０の上下端（図１において）に、Ｘ方向に延伸するように対向して２本配設されており、Ｙビーム１２は、Ｘビーム１１と直角方向の左右端（図１において）に、Ｙ方向に延伸するように対向して２本配設されている。
これらのＸビーム１１とＹビーム１２とで、矩形状の枠体１３が形成されている。
基本吊り足場１０の大きさとしては、人が乗ることのできる大きさ矩形（例えば横方向長さ４８５０ｍｍ、縦幅２０００ｍｍ）に形成したものが挙げられる。
なお、枠体１３は、図１（ｂ）の裏面図に示すように、その補強のため、その中間部に所定間隔で縦横格子状に配置した複数本の断面コの字型の角材１５を適宜配設することもできる。
Ｘビーム１１やＹビーム１２としては、山形鋼、チャンネル鋼、溝形鋼などが挙げられるが、中でも、高荷重に耐えられる強度を有する断面ロの字状の角パイプが好ましく挙げられる。
<Embodiment 1>
<Basic suspension scaffolding 10>
FIG. 1 shows the basic suspension scaffold 10.
(A) is a front view and (b) is a back view.
The basic suspension scaffold 10 is composed of an X beam 11 extending in the longitudinal direction (X direction) and a Y beam 12 extending in the width direction (Y direction) to form a rectangular frame 13. A deck plate 14 serving as a scaffolding plate is laminated on the surface of the frame body 13.
Two X beams 11 are arranged at the upper and lower ends (in FIG. 1) of the basic suspension scaffold 10 so as to extend in the X direction, and the Y beams 12 are left and right in the direction perpendicular to the X beam 11. Two are arranged at the ends (in FIG. 1) so as to extend in the Y direction so as to face each other.
A rectangular frame 13 is formed by the X beam 11 and the Y beam 12.
Examples of the size of the basic suspension scaffold 10 include those formed in a rectangular size (for example, a horizontal length of 4850 mm and a vertical width of 2000 mm) on which a person can ride.
As shown in the back view of FIG. 1 (b), the frame body 13 has a plurality of U-shaped cross-section square timbers 15 arranged in a vertical and horizontal lattice pattern at predetermined intervals in the middle portion thereof to reinforce the frame body 13. It can also be arranged as appropriate.
Examples of the X-beam 11 and the Y-beam 12 include angle steel, channel steel, channel steel, and the like. Among them, a square pipe having a square cross section having a strength capable of withstanding a high load is preferable.
Ｘビームの寸法の一例としては、断面の幅が７５ｍｍ、高さが１５０ｍｍ、長さが４８５０ｍｍのものが挙げられ、Ｙビームの寸法の一例としては、断面の幅が７５ｍｍ、高さ１２５ｍｍ、長さが１８５０ｍｍのものが挙げられる。
このようなサイズは一例であって、実施状況に応じて適宜決定される。
Examples of X-beam dimensions include cross-sectional width of 75 mm, height of 150 mm, and length of 4850 mm, and examples of Y-beam dimensions include cross-sectional width of 75 mm, height of 125 mm, and length. The one having a height of 1850 mm can be mentioned.
Such a size is an example and is appropriately determined according to the implementation situation.
＜デッキプレート１４＞
枠体１３の上面を覆うデッキプレート１４としては、足場板となるものであり、人や機材を載せてもたわんだりしないように適当な強度を備え、枠体１３に、溶接やボルト、リベット留めなどの手段によって固着されている。
デッキプレート１４としては、亜鉛メッキ鋼板やアルミ合金板などの金属板や、エクスパンドメタルなどが挙げられるが、実施状況に応じて適宜決定される。
<Deck plate 14>
The deck plate 14 that covers the upper surface of the frame body 13 serves as a scaffolding plate, has appropriate strength so as not to bend even if a person or equipment is placed on the frame body 13, and is welded, bolted, or riveted to the frame body 13. It is fixed by means such as.
Examples of the deck plate 14 include metal plates such as galvanized steel plates and aluminum alloy plates, expanded metals, and the like, which are appropriately determined according to the implementation situation.
なお、Ｘビーム１１の上面には、基本吊り足場１０を吊り上げるために取り付けた吊り金具２０を突き出させるための開口部１１ａが設けられている。 An opening 11a for projecting the hanging metal fitting 20 attached to lift the basic hanging scaffold 10 is provided on the upper surface of the X beam 11.
＜吊り金具２０＞
図２に、吊り金具の一例を示す。
（ａ）はＸビーム１１の上面から吊り金具の頭部２１が露出した状態をＸ方向に見た正面図であり、（ｂ）は（ａ）をＹ方向に見た側面図であり、
（ｃ）は吊り金具がＸビーム１１内に埋設された状態を示す正面図である。
基本吊り足場１０は、橋桁などの下方に吊り下げられて用いられるものであるので、揚重機などで吊り上げるための吊り金具２０が備えられている。
すなわち、吊り足場１０を構成する長手方向のＸビーム１１には、橋梁の桁材等の支持材から吊下げられたチェーン等の索条を接続する吊り金具２０を配設して、索条に係止できるようにしてある。
<Hanging bracket 20>
FIG. 2 shows an example of the hanging metal fitting.
(A) is a front view of the state in which the head 21 of the hanging bracket is exposed from the upper surface of the X beam 11 in the X direction, and (b) is a side view of (a) in the Y direction.
(C) is a front view showing a state in which the hanging metal fitting is embedded in the X beam 11.
Since the basic suspension scaffold 10 is used by being suspended below a bridge girder or the like, a hanging metal fitting 20 for lifting by a lifting machine or the like is provided.
That is, the X-beam 11 in the longitudinal direction constituting the suspension scaffold 10 is provided with a hanging metal fitting 20 for connecting a rope such as a chain suspended from a support material such as a girder of a bridge, and is used as a rope. It is designed so that it can be locked.
＜落下防止ストッパ２２＞
吊り金具２０は、Ｘビーム１１の内部に、出没自在に且つ離脱しないように埋設されており、吊り金具２０の頭部２１には、Ｘビーム１１内への落下を防止するための落下防止ストッパ２２が備えられ、その足部２３にはＸビーム１１内からの引上げを停止するための引上停止ストッパ２４が備えられている。
すなわち、頭部２１の落下防止ストッパ２２は、頭部２１の上端を両側に拡大して拡大部２２ａを設け、この拡大部２２ａの寸法を、Ｘビーム１１の上面に設けられた開口部１１ａの寸法よりも大きくすることにより、頭部２１がＸビーム１１の上面の開口部１１ａを通過してＸビーム１１内へ落下することを防止するようにしている。
<Fall prevention stopper 22>
The hanging metal fitting 20 is embedded inside the X beam 11 so as to be able to appear and disappear and not to come off, and a fall prevention stopper for preventing the hanging metal fitting 20 from falling into the X beam 11 is provided in the head 21 of the hanging metal fitting 20. 22 is provided, and the foot portion 23 is provided with a pulling stop stopper 24 for stopping pulling from the inside of the X beam 11.
That is, the fall prevention stopper 22 of the head 21 expands the upper end of the head 21 on both sides to provide an enlarged portion 22a, and the size of the enlarged portion 22a is adjusted to the size of the opening 11a provided on the upper surface of the X beam 11. By making the size larger than the size, the head 21 is prevented from passing through the opening 11a on the upper surface of the X beam 11 and falling into the X beam 11.
＜吊り金具頭部２１＞
なお、吊り金具の頭部２１の落下防止ストッパ２２ａは実施形態では逆台形となっており、吊り金具の頭部２１がＸビーム１１に埋設されたときに、その斜め下面２２ｂとＸビーム１１上面との間に隙間が形成できるようになっている。
これにより、その斜め下面２２ｂに手鉤などを掛けて、Ｘビーム１１内に埋設されている吊り金具２０の引き上げを容易にしている。
なお、吊り金具の頭部２１には、シャックルを介してチェーンのフックなどを引っ掛けて吊り足場を吊り上げるために用いる第１貫通孔２５が設けられている。
<Hanging bracket head 21>
The fall prevention stopper 22a of the head 21 of the hanging bracket has an inverted trapezoidal shape in the embodiment, and when the head 21 of the hanging bracket is embedded in the X beam 11, the diagonal lower surface 22b and the upper surface of the X beam 11 are formed. A gap can be formed between the and.
As a result, a hook or the like is hung on the diagonal lower surface 22b to facilitate pulling up of the hanging metal fitting 20 embedded in the X beam 11.
The head 21 of the hanging metal fitting is provided with a first through hole 25 used for hooking a chain hook or the like via a shackle to lift the hanging scaffold.
＜引上停止ストッパ２４＞
吊り金具２０の足部２３には、吊り金具２０がＸビーム１１内からの抜けを停止するための引上停止ストッパ２４が備えられている。
実施形態では、引上停止ストッパ２４は、足部２３に設けられた第２貫通孔２６に嵌入された角柱状の棒状体としている。
角柱状の棒状体は、その上面が平面となっているので、引上停止ストッパ２４は、吊り金具２０の引上げ時に、引上停止ストッパ２４をＸビーム１１の上枠の天井裏１１ｇに密着させて、吊り足場１０全体を吊り上げるようにしている。
引上停止ストッパ２４の大きさや形状としては、Ｘビーム１１の上面に設けられた開口部１１ａを通過しないような大きさや形状とする。
また、引上停止ストッパ２４は、吊り金具２０を下方に引き込んでＸビーム１１内に埋設させる重しの役割もあるので、適宜の質量も有する。
なお、引上停止ストッパ２４は、不使用時には、吊り金具２０をＸビーム１１内に埋設されているので、吊り足場１０の上面や下面への露出がなく、作業の安全性が確保できるようにしている。
また、吊り足場１０を重ねて保管する際には、吊り金具２０の露出による嵩が高くなることがなく、積み重ね時の崩れのおそれがない。
なお、引上停止ストッパ２４は、吊り上げ時に足場パネル１０を支えるものでもあるので、その荷重に耐えられる強度を有する必要がある。
実施形態では、無垢の鋼材製の四角柱を第２貫通孔に嵌入して溶接留めして固着しており、
その角柱の一面（上面）がＸビーム１１の上枠の天井裏１１ｇに密着するようにしている。
<Pull-up stop stopper 24>
The foot portion 23 of the hanging metal fitting 20 is provided with a pull-up stop stopper 24 for stopping the hanging metal fitting 20 from coming out of the X beam 11.
In the embodiment, the pull-up stop stopper 24 is a prismatic rod-shaped body fitted into the second through hole 26 provided in the foot portion 23.
Since the upper surface of the prismatic rod-shaped body is flat, the pulling stop stopper 24 brings the pulling stop stopper 24 into close contact with the ceiling back 11g of the upper frame of the X beam 11 when the hanging metal fitting 20 is pulled up. The entire hanging scaffold 10 is lifted.
The size and shape of the pull-up stop stopper 24 shall be such that it does not pass through the opening 11a provided on the upper surface of the X beam 11.
Further, the pull-up stop stopper 24 also has an appropriate mass because it also serves as a weight for pulling the hanging metal fitting 20 downward and burying it in the X beam 11.
When the pull-up stop stopper 24 is not in use, the hanging metal fitting 20 is embedded in the X beam 11, so that the hanging scaffold 10 is not exposed to the upper surface or the lower surface, so that work safety can be ensured. ing.
Further, when the hanging scaffolds 10 are stacked and stored, the bulk due to the exposure of the hanging metal fittings 20 does not increase, and there is no risk of collapse during stacking.
Since the pull-up stop stopper 24 also supports the scaffolding panel 10 when it is lifted, it needs to have a strength that can withstand the load.
In the embodiment, a quadrangular prism made of solid steel is fitted into the second through hole and welded and fixed.
One surface (upper surface) of the prism is in close contact with the ceiling back 11g of the upper frame of the X beam 11.
＜実施形態１＞
＜Ｘ連結吊り足場３０＞
図３に、基本吊り足場１０をＸ連結した実施形態１の吊り足場（Ｘ連結吊り足場ともいう）を示す。
すなわち、Ｘ連結吊り足場３０は、基本吊り足場をＸ方向に連結したものであり、２枚の基本吊り足場１０のＸビーム１１の端部同士１１ｃと、１１ｄとを突き合わせ、Ｘ方向にＸ連結具４０を介して連結したものである。
<Embodiment 1>
<X connection suspension scaffolding 30>
FIG. 3 shows a suspended scaffold (also referred to as an X-connected suspended scaffold) of the first embodiment in which the basic suspended scaffold 10 is X-connected.
That is, the X-connected suspension scaffold 30 connects the basic suspension scaffolds in the X direction, and the ends 11c and 11d of the X beams 11 of the two basic suspension scaffolds 10 are butted against each other and X-connected in the X direction. It is connected via the tool 40.
次に、図４の断面図を用いて、Ｘ連結吊り足場３０を形成する場合の手順を示す。
まず、図４（ａ）に示すように、一方の基本吊り足場１０ａのＸビーム１１の右端１１ｃに、予めＸ連結具４０の左端４０ａを嵌入し、連結しようとする他方の吊り足場１０ｂ（追加吊り足場１０ｂともいう）のＸビーム１１の左端１１ｄを、Ｘ連結具４０の右端４０ｂに嵌入して連結する。
図４（ｂ）に、基本吊り足場１０ａのＸビーム１１の右端１１ｃに嵌入したＸ連結具４０の外側に、連結しようとする追加吊り足場１０ｂのＸビーム１１の左端１１ｄを嵌入したした状態を示す。
Next, a procedure for forming the X-connected suspension scaffold 30 will be described with reference to the cross-sectional view of FIG.
First, as shown in FIG. 4A, the left end 40a of the X connector 40 is previously fitted into the right end 11c of the X beam 11 of one basic suspension scaffold 10a, and the other suspension scaffold 10b (additional) to be connected. The left end 11d of the X beam 11 (also referred to as the suspension scaffold 10b) is fitted into the right end 40b of the X connector 40 and connected.
FIG. 4B shows a state in which the left end 11d of the X beam 11 of the additional suspension scaffold 10b to be connected is fitted to the outside of the X connector 40 fitted to the right end 11c of the X beam 11 of the basic suspension scaffold 10a. Shown.
図４（ｃ）に、Ｘ連結させたＸビーム１１及びＸ連結具４０を上下方向に貫通させた連結ボルト４２を通して、２枚の基本吊り足場１０ａと追加吊り足場１０ｂとを、Ｘ連結具４０を用いてＸ連結して固定した状態を示す。
Ｘ方向のＸ連結は、逆Ｖ字状に形成されたＸ連結具４０をＸビーム１１の内側に嵌入するとともに、Ｘ連結具４０の両端部は、Ｘビーム１１の下面内側との間で遊間４４（スペース）が形成された状態になっている。
すなわち、実施形態１のＸ連結吊り足場３０は、逆Ｖ字状のＸ連結具４０を用いているので、Ｘ方向の中央が上方に突出した山状（中央部が盛り上がっている）に形成されている。
なお、連結ボルト４２の貫通は、Ｘビーム１１とＸ連結具４０との位置あわせのためである。
図４（ｄ）に、Ｘ連結吊り足場３０を吊り上げた状態を示す。
Ｘ連結吊り足場３０はチェーンで吊り上げられることによって撓み、Ｘ連結具４０の両端部に、Ｘビーム１１の下面内側との間で形成されていた遊間４４（スペース）が消滅している。
すなわち、吊り足場を持ち上げることによりＸ連結吊り足場３０の両端が上方に引き上げられて、Ｘ連結具４０の両端の下部４０ｃと接触して、Ｘビーム１１が直線状になっている。
これにより、吊り足場を水平とすることができ、吊り足場を桁にチェーン等で取り付ける作業を容易にすることができる。
また、吊り足場にシートを張り、小物の落下を防ぐとともに、雨勾配を確保するためにも、水平状にすることが望ましい。
なお、図５は、他のＸ連結具を用いたＸ連結の手順を示す説明図である。
図５に示すＸ連結具４５は、直線状に形成されたボックス状の下面両端および上面中央に小片４６を設けたものである。
このＸ連結具４５がＸビーム１１の内側に嵌入され、Ｘ連結具の左右両端下部には、Ｘビーム１１の下面内側との間で遊間４４が形成された状態になっている。
In FIG. 4C, the two basic suspension scaffolding 10a and the additional suspension scaffolding 10b are connected to the X coupling tool 40 through the connecting bolt 42 through which the X beam 11 and the X connecting tool 40 are X-connected in the vertical direction. Indicates a state in which X is connected and fixed using.
In the X connection in the X direction, the X connector 40 formed in an inverted V shape is fitted inside the X beam 11, and both ends of the X connector 40 are loosely connected to the inside of the lower surface of the X beam 11. 44 (space) is formed.
That is, since the X-connecting suspension scaffold 30 of the first embodiment uses the inverted V-shaped X-connecting tool 40, it is formed in a mountain shape (the central portion is raised) in which the center in the X direction protrudes upward. ing.
The penetration of the connecting bolt 42 is for aligning the X beam 11 and the X connecting tool 40.
FIG. 4D shows a state in which the X-connected suspension scaffold 30 is lifted.
The X-connecting suspension scaffold 30 is bent by being lifted by a chain, and the play space 44 (space) formed between the X-beam 11 and the inside of the lower surface disappears at both ends of the X-connector 40.
That is, by lifting the suspended scaffold, both ends of the X-connected suspended scaffold 30 are pulled upward and come into contact with the lower portions 40c of both ends of the X-connecting tool 40, so that the X beam 11 is linear.
As a result, the suspended scaffold can be made horizontal, and the work of attaching the suspended scaffold to the girder with a chain or the like can be facilitated.
In addition, it is desirable to put a sheet on the suspended scaffold to prevent small items from falling and to make it horizontal in order to secure a rain gradient.
Note that FIG. 5 is an explanatory diagram showing a procedure of X connection using another X connector.
The X connector 45 shown in FIG. 5 is formed by providing small pieces 46 at both ends of a linearly formed lower surface and at the center of the upper surface.
The X-connector 45 is fitted inside the X-beam 11, and a gap 44 is formed between the lower left and right ends of the X-connector and the inside of the lower surface of the X-beam 11.
＜Ｘ連結具４０、４５＞
図６（ａ）に、Ｘ連結具４０の一例として、逆Ｖ字状の連結具を示す。
Ｘ連結具４０としては、アングル鋼、チャンネル鋼、溝形鋼（Ｃ形鋼、Ｃチャンなど薄い板材を加工した鋼材）などが挙げられる。
図６（ｂ）は、（ａ）の逆Ｖ字状の連結具の垂直部の一方の壁に水平方向の溝部４３が形成されたものである。
この溝部４３の縮小により断面Ｃ字が変形することにより、Ｘビーム１１の内寸に多少の差異があっても許容し、Ｘビーム１１の内側にＸ連結具４０を嵌入することができる。
また、Ｘビーム１１の内側に突起物などがあっても、溝部４３がその突起物を避けてＸ連結具４０を嵌入させることができるので好ましい。
以上説明したようにして、複数枚の基本吊り足場１０を、Ｘ方向に連結して、大きな面積のＸ連結吊り足場３０を形成することができる。
図６（ｃ）に、小片を設けたＸ連結具４５を示す。
小片を設けたＸ連結具４５は、直線状に形成されたボックス状であり、
アングル鋼、チャンネル鋼、溝形鋼（Ｃ形鋼、Ｃチャンなど薄い板材を加工した鋼材）などを所定の長さに切断したものが挙げられる。
Ｘ連結具４５の下面両端および上面中央に小片４６が設けられており、
図６（ａ）に示す逆Ｖ字状の連結具と同様の機能を有するものである。
<X connector 40, 45>
FIG. 6A shows an inverted V-shaped connector as an example of the X connector 40.
Examples of the X connector 40 include angle steel, channel steel, channel steel (steel material obtained by processing a thin plate material such as C-shaped steel and C-chan) and the like.
FIG. 6B shows a groove 43 formed in the horizontal direction on one wall of the vertical portion of the inverted V-shaped connector of FIG. 6A.
Since the C-shaped cross section is deformed due to the reduction of the groove portion 43, even if there is a slight difference in the inner dimensions of the X beam 11, the X connector 40 can be fitted inside the X beam 11.
Further, even if there is a protrusion or the like inside the X beam 11, the groove 43 can avoid the protrusion and fit the X connector 40, which is preferable.
As described above, a plurality of basic suspended scaffolds 10 can be connected in the X direction to form an X-connected suspended scaffold 30 having a large area.
FIG. 6C shows an X connector 45 provided with a small piece.
The X connector 45 provided with the small pieces has a box shape formed in a straight line.
Examples thereof include angle steel, channel steel, channel steel (steel made by processing a thin plate such as C-shaped steel and C-chan) cut to a predetermined length.
Small pieces 46 are provided at both ends of the lower surface of the X connector 45 and at the center of the upper surface.
It has the same function as the inverted V-shaped connector shown in FIG. 6 (a).
＜実施形態２＞
＜Ｙ連結吊り足場５０＞
図７に、Ｙ連結をした実施形態２の吊り足場（Ｙ連結吊り足場５０ともいう）を示す。（ａ）は表面図、（ｂ）は裏面図である。
Ｙ連結とは、基本吊り足場２枚を、Ｘビーム同士を接触するように平行に配置して、Ｙ方向に連結することをいう。
Ｙ連結吊り足場５０は、基本吊り足場をＹ方向に連結したものであり、２枚の基本吊り足場１０のＸビーム１１同士を並列に並べ、その端部同士をＹ方向にＹ連結具６０を用いて連結したものである。
<Embodiment 2>
<Y connection suspension scaffolding 50>
FIG. 7 shows a suspended scaffold of the second embodiment (also referred to as a Y-connected suspended scaffold 50) that is Y-connected. (A) is a front view and (b) is a back view.
The Y connection means that two basic suspension scaffolds are arranged in parallel so that the X beams come into contact with each other and are connected in the Y direction.
The Y-connected suspension scaffold 50 connects the basic suspension scaffolds in the Y direction. The X beams 11 of the two basic suspension scaffolds 10 are arranged in parallel, and the ends thereof are connected to each other in the Y direction. It is connected using.
＜Ｙ連結具６０＞
図８に、Ｘビーム１１同士を連結するＹ連結具６０を示す。（ａ）は断面図、（ｂ）は上面図である。
Ｙ連結具６０は、並列に並べられた２本のＸビーム１１の端部の外周を囲むようにして設けられる。
すなわち、Ｙ連結具６０は、Ｘビーム１１の側面から下部を巻く凹状部材６１と、凹状部材６１に挿入されたＸビーム１１の上部を覆う蓋部材６２と、これらを結合する固定ボルト６３とからなる。
凹状部材６１に２本のＸビーム１１の端部を挿入した後、その上部を蓋部材６２で覆うようにして蓋部材６２の両端を固定ボルト６３で締める。
これにより、２本のＸビーム１１の端部がＹ連結具６０を介してＹ連結固定される。
なお、凹状部材６１の上下方向中間位置に中間ボルト６４を挿入して、凹状部材６１と２本のＸビーム１１とを一体化させて、Ｙ連結具６０の強度を増すこともできる。
<Y connector 60>
FIG. 8 shows a Y connector 60 that connects the X beams 11 to each other. (A) is a cross-sectional view, and (b) is a top view.
The Y connector 60 is provided so as to surround the outer periphery of the end portions of the two X beams 11 arranged in parallel.
That is, the Y connector 60 is composed of a concave member 61 that winds the lower part from the side surface of the X beam 11, a lid member 62 that covers the upper part of the X beam 11 inserted into the concave member 61, and a fixing bolt 63 that connects them. Become.
After inserting the ends of the two X beams 11 into the concave member 61, both ends of the lid member 62 are tightened with fixing bolts 63 so that the upper portion thereof is covered with the lid member 62.
As a result, the ends of the two X beams 11 are Y-connected and fixed via the Y-connector 60.
It is also possible to insert an intermediate bolt 64 at an intermediate position in the vertical direction of the concave member 61 to integrate the concave member 61 and the two X beams 11 to increase the strength of the Y connector 60.
＜中間のＹ連結具７０＞
図９は、Ｙ連結具６０とは別途に用いられる中間Ｙ連結具７０であり、（ａ）は断面図、（ｂ）は上面図である。
この中間Ｙ連結具７０は、Ｘビーム１１の端部の連結ではなくＸビーム１１の中間部同士をＹ連結する場合に用いられる。
すなわち、Ｘビーム１１の端部での連結に加えて中間部においても連結することによって、Ｙ連結吊り足場５０をより強固に連結することができる。
この中間Ｙ連結に際して用いる中間Ｙ連結具７０は、連結しようとする２枚の基本吊り足場１０のＸビーム１１に収納されている吊り金具２０を利用する。
すなわち、中間Ｙ連結具７０は、２本の吊り金具２０、２０の頭部２１の間に介在させる介在部材７１、吊り金具２０の足部２３の第２貫通孔２６に嵌入された引上停止ストッパ２４からなる。
なお、介在部材７１は、２本の吊り金具２０、２０の頭部２１との間にボルト７２を貫通させて固定されている。
以上説明したようにして、複数枚の基本吊り足場１０を、Ｙ方向に連結して、大きな面積のＹ連結吊り足場５０を形成することができる。
<Intermediate Y connector 70>
9A and 9B are an intermediate Y connector 70 used separately from the Y connector 60, where FIG. 9A is a cross-sectional view and FIG. 9B is a top view.
The intermediate Y connector 70 is used when the intermediate portions of the X beam 11 are Y-connected to each other instead of the end portions of the X beam 11.
That is, the Y-connected suspension scaffold 50 can be more firmly connected by connecting the X-beam 11 not only at the end portion but also at the intermediate portion.
The intermediate Y connecting tool 70 used for the intermediate Y connecting utilizes the hanging metal fitting 20 housed in the X beam 11 of the two basic hanging scaffolds 10 to be connected.
That is, the intermediate Y connector 70 has an intervening member 71 interposed between the heads 21 of the two hanging metal fittings 20, and a pull-up stop fitted in the second through hole 26 of the foot portion 23 of the hanging metal fitting 20. It consists of a stopper 24.
The intervening member 71 is fixed by penetrating a bolt 72 between the two hanging metal fittings 20 and the head 21 of the 20.
As described above, a plurality of basic suspension scaffolds 10 can be connected in the Y direction to form a Y-connected suspension scaffold 50 having a large area.
＜実施形態３＞
＜ＸＹ連結吊り足場８０＞
図１０に、実施形態３の吊り足場（４枚の基本吊り足場１０をＸＹ連結したもの）を示す。（ａ）は表面図、（ｂ）は裏面図である。
実施形態３の吊り足場８０は、基本吊り足場１０の４枚を、Ｘ方向に２枚連結し、Ｙ方向に２枚連結したもの（ＸＹ連結吊り足場ともいう）をいう。
すなわち、実施形態３のＸＹ連結吊り足場８０は、基本吊り足場１０を、Ｘ方向及びＹ方向に連結したものである。
実施形態３のＸＹ連結吊り足場８０を形成するための連結具は、実施形態１及び実施形態２で用いたＸ連結具２０とＹ連結具６０とを用いる。
また、実施状況によっては、中間Ｙ連結具７０を用いることもできる。
これにより、複数枚の基本吊り足場１０を、Ｘ及びＹ方向に連結して、大きな面積のＸＹ連結吊り足場８０を形成することができる。
<Embodiment 3>
<XY connection suspension scaffolding 80>
FIG. 10 shows a suspended scaffold of the third embodiment (four basic suspended scaffolds 10 are XY connected). (A) is a front view and (b) is a back view.
The suspension scaffold 80 of the third embodiment refers to a scaffold in which four pieces of the basic suspension scaffold 10 are connected in the X direction and two pieces are connected in the Y direction (also referred to as an XY connection suspension scaffold).
That is, the XY connection suspension scaffold 80 of the third embodiment is a basic suspension scaffold 10 connected in the X direction and the Y direction.
As the connecting tool for forming the XY connecting suspension scaffold 80 of the third embodiment, the X connecting tool 20 and the Y connecting tool 60 used in the first and second embodiments are used.
Further, depending on the implementation situation, the intermediate Y connector 70 can also be used.
Thereby, a plurality of basic suspension scaffolds 10 can be connected in the X and Y directions to form an XY connection suspension scaffold 80 having a large area.
本発明の吊り足場は、作業の安全性が高く、作業性がよく、短期間に且つ未熟者でも手軽に吊り足場を構築でき、より安価で丈夫な吊り足場とすることができるので、産業上広く利用することができる。 The suspended scaffold of the present invention has high work safety and good workability, and even an inexperienced person can easily construct the suspended scaffold in a short period of time, and the suspended scaffold can be made cheaper and more durable. It can be widely used.
１０、１０ａ 基本吊り足場
１０ｂ 連結しようとする他方の吊り足場（追加吊り足場）
１１ Ｘビーム
１１ａ Ｘビームの上面の開口部
１１ｃ Ｘビーム１１の右端
１１ｄ Ｘビーム１１の左端
１１ｇ Ｘビーム１１の天井裏
１２ Ｙビーム
１３ 枠体
１４ デッキプレート
１５ 角材
２０ 吊り金具
２１ 頭部
２２ 落下防止ストッパ
２２ａ 拡大部
２２ｂ 斜め下面
２３ 足部
２４ 引上停止ストッパ
２５ 第１貫通孔
２６ 第２貫通孔
３０ 実施形態１の吊り足場（Ｘ連結吊り足場）
４０、４５ Ｘ連結具
４０ａ Ｘ連結具の左端
４０ｂ Ｘ連結具の右端
４０ｃ Ｘ連結具の両端の下部
４１ Ｘ連結具の上部平行部
４２ Ｘ連結に用いる連結ボルト
４３ 溝部
４４ 遊間
４６ 小片
５０ 実施形態２の吊り足場（Ｙ連結吊り足場）
６０ Ｙ連結具
６１ 凹状部材
６２ 蓋部材
６３ 固定ボルト
６４ 中間ボルト
７０ 中間Ｙ連結具
７１ 介在部材
７２ ボルト
８０ 実施形態３の吊り足場（ＸＹ連結吊り足場）
10, 10a Basic suspension scaffold 10b The other suspension scaffold to be connected (additional suspension scaffold)
11 X-beam 11a Opening on the upper surface of X-beam 11c Right end of X-beam 11 11d Left end of X-beam 11 11g Behind the ceiling of X-beam 11 Y-beam 13 Frame 14 Deck plate 15 Square timber 20 Hanging bracket 21 Head 22 Fall prevention Stopper 22a Enlarged portion 22b Diagonal lower surface 23 Foot portion 24 Pull-up stop Stopper 25 First through hole 26 Second through hole 30 Suspended scaffold of the first embodiment (X-connected suspended scaffold)
40, 45 X Connecting tool 40a X Left end of connecting tool 40b X Right end of connecting tool 40c X Lower end of both ends of connecting tool 41 X Upper parallel part of connecting tool 42 X Connecting bolt 43 Groove 44 Free space 46 Small piece 50 Embodiment 2 hanging scaffolding (Y-connected hanging scaffolding)
60 Y connector 61 Concave member 62 Lid member 63 Fixing bolt 64 Intermediate bolt 70 Intermediate Y connector 71 Intervening member 72 Bolt 80 Suspended scaffold of the third embodiment (XY connected suspended scaffold)
Claims (4)
その枠体の上面に積層したデッキプレートと、
を備えた矩形状の吊り足場をＸ方向に連結し、
Ｘ方向の中央が上方に突出し山状に形成されたＸ連結吊り足場であって、
前記Ｘ方向の連結は、
逆Ｖ字状に形成されたＸ連結具を前記Ｘビームの内側に嵌入されるとともに、
前記Ｘ連結具の両端下部は、
前記Ｘビームの下面内側との間に遊間が形成された状態になっていることを特徴とする吊り足場。 A rectangular frame composed of an X beam in the longitudinal direction arranged to face each other and a Y beam arranged to face the X beam in the direction perpendicular to the X beam.
The deck plate laminated on the upper surface of the frame and
Connect the rectangular hanging scaffolds equipped with in the X direction,
An X-connected suspension scaffold with a mountain-shaped center protruding upward in the X direction.
The connection in the X direction is
The X connector formed in an inverted V shape is fitted inside the X beam, and at the same time,
The lower ends of both ends of the X connector
A suspended scaffold characterized in that a play space is formed between the X beam and the inside of the lower surface.
その枠体の上面に積層したデッキプレートと、
を備えた矩形状の吊り足場をＸ方向びＹ方向に連結し、
Ｘ方向の中央が上方に突出し山状に形成されたＸＹ連結吊り足場であって、
前記Ｘ方向の連結は、
逆Ｖ字状に形成されたＸ連結具を前記Ｘビームの内側に嵌入されるとともに、
前記Ｘ連結具の両端下部は、
前記Ｘビームの下面内側と遊間が形成された状態になっていることを特徴とする吊り足場。 A rectangular frame composed of an X beam in the longitudinal direction arranged to face each other and a Y beam arranged to face the X beam in the direction perpendicular to the X beam.
The deck plate laminated on the upper surface of the frame and
A rectangular hanging scaffold equipped with is connected in the X and Y directions,
It is an XY connection suspension scaffold with the center in the X direction protruding upward and formed in a mountain shape.
The connection in the X direction is
The X connector formed in an inverted V shape is fitted inside the X beam, and at the same time,
The lower ends of both ends of the X connector
A suspended scaffold characterized in that a play space is formed with the inside of the lower surface of the X beam.
その枠体の上面に積層したデッキプレートと、
を備えた矩形状の吊り足場をＸ方向に連結したＸ連結吊り足場であって、
前記Ｘ方向の連結は、直線状に形成されたボックスの下面両端および上面中央に小片を設けたＸ連結具を前記Ｘビームの内側に嵌入されるとともに、
前記Ｘ連結具の両端下部は、
前記Ｘビームの下面内側と遊間が形成された状態になっていることを特徴とする吊り足場。 A rectangular frame composed of an X beam in the longitudinal direction arranged to face each other and a Y beam arranged to face the X beam in the direction perpendicular to the X beam.
The deck plate laminated on the upper surface of the frame and
It is an X-connected suspension scaffold in which rectangular suspension scaffolds equipped with the above are connected in the X direction.
In the connection in the X direction, an X connector having small pieces provided at both ends of the lower surface and the center of the upper surface of the linearly formed box is fitted inside the X beam, and
The lower ends of both ends of the X connector
A suspended scaffold characterized in that a play space is formed with the inside of the lower surface of the X beam.
その枠体の上面に積層したデッキプレートと、
を備えた矩形状の吊り足場をＸ方向及びＹ方向に連結したＸＹ連結吊り足場であって、
前記Ｘ方向の連結は、直線状に形成されたボックスの下面両端および上面中央に小片を設けたＸ連結具を前記Ｘビームの内側に嵌入されるとともに、
前記Ｘ連結具の両端下部は、
前記Ｘビームの下面内側と遊間が形成された状態になっていることを特徴とする吊り足場。
A rectangular frame composed of an X beam in the longitudinal direction arranged to face each other and a Y beam arranged to face the X beam in the direction perpendicular to the X beam.
The deck plate laminated on the upper surface of the frame and
It is an XY connection suspension scaffold in which rectangular suspension scaffolds provided with the above are connected in the X direction and the Y direction.
In the connection in the X direction, an X connector having small pieces provided at both ends of the lower surface and the center of the upper surface of the linearly formed box is fitted inside the X beam, and
The lower ends of both ends of the X connector
A suspended scaffold characterized in that a play space is formed with the inside of the lower surface of the X beam.
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| JPS57114854A (en) * | 1981-01-07 | 1982-07-16 | Matsushita Electric Ind Co Ltd | Measuring apparatus for air-fuel ratio |
| JPS59151917U (en) * | 1983-03-25 | 1984-10-11 | 株式会社新井組 | Hanging fittings for scaffolding |
| JPH08128191A (en) * | 1994-09-07 | 1996-05-21 | Yuichi Dojo | Stopper construction of suspension device, etc., of scaffolding |
| JPH11107523A (en) * | 1997-10-06 | 1999-04-20 | Koyo Kikai Sangyo Kk | Hanging scaffold, method for constructing the same, and mounting bracket for standard pipe, etc. |
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| JP2023113321A (en) * | 2022-02-03 | 2023-08-16 | ▲蔦▼井株式会社 | Moving connecting suspended scaffold, and method for using the same |
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