JP3489447B2 - Variable-truss truss frame for suspended work platforms - Google Patents
Variable-truss truss frame for suspended work platformsInfo
- Publication number
- JP3489447B2 JP3489447B2 JP18469898A JP18469898A JP3489447B2 JP 3489447 B2 JP3489447 B2 JP 3489447B2 JP 18469898 A JP18469898 A JP 18469898A JP 18469898 A JP18469898 A JP 18469898A JP 3489447 B2 JP3489447 B2 JP 3489447B2
- Authority
- JP
- Japan
- Prior art keywords
- frame
- truss
- shape
- variable
- basic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/24—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons
- E04G3/243—Scaffolds essentially supported by building constructions, e.g. adjustable in height specially adapted for particular parts of buildings or for buildings of particular shape, e.g. chimney stacks or pylons following the outside contour of a building
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Movable Scaffolding (AREA)
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、構築物の外壁面に
沿って横方向に延設されて昇降移動される作業用吊り足
場のトラス架構に係わり、特にトラス架構の一部を伸縮
調節可能なトラス部材で構成して、その昇降移動に伴う
上記外壁面の形状変化に対応できるようにした作業用吊
り足場の形状可変トラス架構に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a truss frame for a work suspension scaffold which is horizontally extended along an outer wall surface of a structure and is moved up and down. The present invention relates to a variable shape truss frame for a work suspension scaffold, which is composed of a truss member and is capable of coping with a change in the shape of the outer wall surface due to the up and down movement thereof.
【０００２】[0002]
【従来の技術】構築物の壁面に沿って昇降する作業用足
場にあって、その昇降に伴う壁面形状の変化に合わせて
その足場の平面形状を変更可能な作業用吊り足場の架構
構造として、特開平７−３４６５２号公報に提案されて
いるものがある。2. Description of the Related Art A scaffolding for work that moves up and down along the wall surface of a structure, and as a frame structure for a working scaffolding that can change the plane shape of the scaffold according to the change of the wall surface shape due to the lifting, There is one proposed in Kaihei 7-34652.
【０００３】当該提案は、地下に躯体を構築する躯体構
築用の足場装置に関するもので、地上部からガイドマス
トを吊り下げ、そのガイドマストに水平方向に延びて上
下に昇降移動可能な昇降足場を設け、この昇降足場のフ
レームはその昇降移動に伴う躯体構築物の形状変化に対
応させて屈曲できるようになっている。[0003] The proposal relates to a scaffolding device for constructing a structure for constructing a structure underground, in which a guide mast is hung from the above-ground part, and an elevating scaffold that extends horizontally in the guide mast and is vertically movable. The frame of the elevating scaffold can be bent in response to the change in the shape of the skeleton structure due to the elevating movement.
【０００４】即ち、図８、９に示すように、上記昇降足
場２０は、最小構成単位となる基本立体トラス２１が多
数水平方向に連設されてなるトラス構造体のフレーム２
２と、このフレーム２２上に設けられる足場部材２３と
からなる。上記基本立体トラス２１は９本の固定長トラ
ス部材を三角柱状に骨組みしたもので、三角トラス面が
鉛直に配されるとともに、上部側に長方形トラス面が水
平に配されて横置きされ、この水平に配された長方形ト
ラス面上に足場部材２３が載置されるようになってい
る。That is, as shown in FIGS. 8 and 9, the hoisting scaffold 20 is a frame 2 of a truss structure in which a large number of basic space trusses 21, which are the minimum structural units, are connected in a horizontal direction.
2 and a scaffolding member 23 provided on the frame 22. The basic three-dimensional truss 21 is a structure in which nine fixed-length truss members are skeletonized in a triangular prism shape. The triangular truss surface is arranged vertically, and the rectangular truss surface is horizontally arranged on the upper side. The scaffolding member 23 is placed on a horizontally arranged rectangular truss surface.
【０００５】そして、当該基本立体トラス２１を多数、
その三角トラス面同士を対向させて連設することによっ
てフレーム２２が形成されるが、その連結部分に回動機
構を有した結合手段２４を介在させることにより、フレ
ーム２２を基本立体トラス相互間で任意の角度に屈曲可
能としている。A large number of the basic space trusses 21 are provided.
The frame 22 is formed by arranging the triangular truss surfaces so as to face each other, and the frame 22 is formed between the basic three-dimensional trusses by interposing a coupling means 24 having a rotating mechanism at the connecting portion. It can be bent at any angle.
【０００６】ここで、上記結合手段２４はそれぞれ隣り
合う基本立体トラス２１における横方向の３本のトラス
部材（以後、弦材と記す）２１ａの端部同士間に設けら
ており、各弦材２１ａの端部に一体的に取り付けられた
フランジ部材２１ｂ，２１ｂと、このフランジ部材２１
ｂ，２１ｂ間に環状のスペーサ２４ａを介して介在され
るボール２４ｂとから主になる。そして、両フランジ部
材２１ａ，２１ａ間にはスペーサ２４ａを貫通するボル
ト・ナット２４ｃが配されていて、かつこれらボルト・
ナット２４ｃとフランジ部材２１ｂ，２１ｂとの接触部
は球面座に形成されていて、これを締め付けることによ
り、ボール２４ｂを介して任意の角度で弦材２１ａ，２
１ａの端部同士を結合可能としている。Here, the connecting means 24 is provided between the ends of three lateral truss members (hereinafter referred to as chord members) 21a of the adjacent basic three-dimensional trusses 21. Flange members 21b, 21b integrally attached to the end of 21a, and the flange member 21
Mainly consists of balls 24b interposed between b and 21b via an annular spacer 24a. A bolt / nut 24c penetrating the spacer 24a is arranged between the flange members 21a and 21a.
A contact portion between the nut 24c and the flange member 21b, 21b is formed as a spherical seat, and by tightening the spherical seat, the chord member 21a, 2 at an arbitrary angle via the ball 24b.
The ends of 1a can be joined together.
【０００７】従って、上記昇降足場の形状を構築物１５
の壁面に合わせて変更するにあたっては、隣接する基本
立体トラス２１における３本の弦材２１ａ，２１ａ，２
１ａ端部同士の各結合部において、その結合手段２４の
フランジ部材２１ｂとボール２４ｂとの間に介設するス
ペーサ２４ａの厚さを相対的に違えて基本立体トラス２
１同士の結合角度を任意に設定することにより、フレー
ム２２を所望の角度に屈曲させるようになっている。即
ち、構築物１５に近接する側の結合手段２４におけるス
ペーサ２４ａの厚みを大きくする一方、離間する側のス
ペーサ２４ａの厚みを小さくすることにより、フレーム
２２は反構築物側に屈曲し、これとは逆に、反構築物側
の結合手段２４におけるスペーサ２４ａの厚みの方を大
きくすることによりフレーム２２は構築物側に屈曲する
構造になっている。Accordingly, the structure of the lifting scaffold is constructed 15
In order to change according to the wall surface of the three chord members 21a, 21a, 2
At each joint between the end portions 1a, the thickness of the spacer 24a interposed between the flange member 21b of the joint means 24 and the ball 24b is relatively different, and the basic space truss 2 is formed.
The frame 22 is bent at a desired angle by arbitrarily setting the connection angle between the two. That is, by increasing the thickness of the spacer 24a in the coupling means 24 on the side closer to the structure 15 and decreasing the thickness of the spacer 24a on the side separated, the frame 22 is bent toward the side opposite to the structure, and vice versa. In addition, the frame 22 has a structure in which the spacer 22a of the coupling means 24 on the side opposite to the structure is made thicker to bend the frame 22 toward the structure.
【０００８】[0008]
【発明が解決しようとする課題】しかしながら、上記従
来の昇降足場のフレーム構造では、基本立体トラス２
１，２１同士を結合させる結合手段２４のスペーサ２４
ａの厚さを構築物側の結合部と反建築物側の結合部とで
相対的に違えることにより、フレーム２２の形状を屈曲
させるようにしているため、形状変更が必要となる度に
結合部に介在させる結合手段２４のスペーサ２４ａの厚
さやその挟み込む枚数を設定変更しなければならない。However, in the conventional frame structure of the hoisting scaffold, the basic space truss 2 is used.
Spacer 24 of coupling means 24 for coupling 1, 21 to each other
Since the shape of the frame 22 is bent by making the thickness of a relatively different between the structure-side connecting portion and the non-building-side connecting portion, the connecting portion is changed every time the shape needs to be changed. It is necessary to change the thickness of the spacer 24a of the coupling means 24 and the number of sandwiched spacers 24a.
【０００９】つまり、結合手段２４のスペーサ２４ａ
は、隣り合う基本立体トラス２１の対応する弦材端部に
それぞれ設けられたフランジ部材２１ｂを結合するボル
ト・ナット２４ｃの締結によって挟圧支持されるもので
あるため、スペーサ２４ａの追加や取り外しまたは交換
をするためには、ボルト・ナット２４ｃを外さねばなら
ず、必然的に基本立体トラス２１，２１間の結合が解か
れて、足場が解体されてしまうことになる。That is, the spacer 24a of the coupling means 24
Is clamped and supported by fastening bolts and nuts 24c that connect flange members 21b provided on the corresponding chord end portions of adjacent basic space trusses 21, respectively. In order to exchange the bolts and nuts 24c, it is necessary to remove the bolts and nuts 24c, which inevitably releases the connection between the basic space trusses 21 and 21 and the scaffolding is dismantled.
【００１０】従って、昇降足場を吊り下げたままの状態
でこれを形状変更することは困難であり、昇降足場を地
上に降ろしてその形状変更をしなければならず、その作
業は繁雑で過大な手間がかかるとともに非常に効率が悪
かった。さらに、昇降足場の屈曲する角度は、基本立体
トラス２１の弦材端部のフランジ部材２１ｂとボール２
４ｂとの間に介在したスペーサ２４ａの厚さを構築物側
結合部と反構築物側結合部とで相対的な差をもたせて調
節するが、あくまで２つのフランジ部材２１ｂ，２１ｂ
間をボルトナット２４ｃで締結結合させる構造であるた
め、その屈曲させ得る角度には限界があってあまり大き
く設定することはできなかった。Therefore, it is difficult to change the shape of the hoisting scaffold while it is suspended, and it is necessary to lower the hoisting scaffold to the ground to change its shape, and the work is complicated and excessive. It was time consuming and very inefficient. Further, the bending angle of the lifting scaffold is determined by the flange member 21b at the chord end of the basic space truss 21 and the ball 2
The thickness of the spacer 24a interposed between the flanges 4b and 4b is adjusted by making a relative difference between the construction-side coupling portion and the non-construction-side coupling portion, but only the two flange members 21b and 21b.
Since the structure is such that the space between them is fastened and coupled by the bolt nut 24c, there is a limit to the angle at which it can be bent, and it has not been possible to set it too large.
【００１１】さらには、昇降足場を地上に降ろした状態
では、その形状変更のために基本立体トラス相互間の位
置関係をずらそうとしても、足場部材が地表面に引っか
かり、その移動には過大な力を要し、所望の角度に屈曲
形成し難いという問題もあった。Further, when the hoisting scaffold is lowered to the ground, even if an attempt is made to shift the positional relationship between the basic space trusses to change the shape of the hoisting scaffold, the scaffolding member is caught on the ground surface and its movement is excessive. There is also a problem that it requires a force and it is difficult to bend and form at a desired angle.
【００１２】本発明は、上記の如き諸問題点に鑑みてな
されたものであり、その目的は、作業用吊り足場を吊り
下げたままの状態で形状変更させることができ、しかも
屈曲角度を大きく取れる作業用吊り足場の形状可変トラ
ス架構を提供することにある。The present invention has been made in view of the above problems, and an object thereof is to make it possible to change the shape of a work suspension scaffold in a suspended state and to increase the bending angle. It is to provide a variable shape truss frame for a work-use hanging scaffold.
【００１３】[0013]
【課題を解決するための手段】上記目的を達成するため
に、本願の請求項１に係かる発明にあっては、構築物の
外壁面に沿って横方向に延設されて昇降移動される作業
用吊り足場のトラス架構であって、２対の弦材を縦横に
回動自在に結合して四辺形リンクを形成するとともに、
該四辺形リンクにはその対角線に沿って伸縮調節可能な
可変長の斜材を設けて平面フレームとなし、該平面フレ
ームを所定の高さを隔てて上下一対に平行配置して、こ
れらの４隅を固定長の束材で繋いで最小構成単位の基本
立体トラスを構成し、該基本立体トラスを多数、その平
面フレームの縦方向の弦材と束材とを共有させつつ横方
向に連設させてなり、前記斜材を伸縮して前記平面フレ
ームが形成する四辺形の傾斜角度を変更することによ
り、前記構築物の外壁面に合わせた形状に形成すること
を特徴とする。In order to achieve the above-mentioned object, in the invention according to claim 1 of the present application, the work is extended laterally along the outer wall surface of the structure and moved up and down. It is a truss frame for suspension scaffolding, and two pairs of chord members are rotatably connected vertically and horizontally to form a quadrilateral link.
The quadrilateral link is provided with a diagonal member of a variable length which can be expanded and contracted along a diagonal line thereof to form a flat frame, and the flat frames are arranged in parallel in a vertical pair at a predetermined height. The corners are connected by a fixed-length bundle to form a basic three-dimensional truss of the minimum structural unit, and a large number of the basic three-dimensional trusses are connected in the horizontal direction while sharing the vertical chords and bundles of the plane frame. Ri Na by said planar frame by stretching the diagonals
By changing the angle of inclination of the quadrilateral formed by the
It is characterized in that it is formed into a shape that matches the outer wall surface of the structure .
【００１４】上記構成によれば、基本立体トラスの上下
面を構成する平面フレームの可変長の斜材を伸縮して長
さ調節することにより、平面フレームが形成する四辺形
の傾斜角度を自由に変えることはもちろん、大きな角度
に屈曲することも可能であり、隣接して連なった各々の
平面フレームの傾斜角度を任意に変更することにより、
作業用吊り足場を建築物の壁面に合わせた任意の形状に
形成することが可能である。According to the above structure, the sloping members of the variable length of the flat frame constituting the upper and lower surfaces of the basic space truss are expanded and contracted to adjust the length, whereby the inclination angle of the quadrangle formed by the flat frame can be freely adjusted. Of course, it is also possible to bend at a large angle, and by arbitrarily changing the inclination angle of each adjacent planar frame,
It is possible to form the work suspension scaffold into an arbitrary shape according to the wall surface of the building.
【００１５】また、吊り足場の形状を変更する場合で
も、その屈曲角度を変更させようとする基本立体トラス
間の結合を解く必要はなく、平面フレームの斜材の長さ
を調節するだけで足場の形状変更が可能なため、作業用
吊り足場を吊り上げた状態のままで形状を変えることが
可能である。Even when the shape of the suspended scaffold is changed, it is not necessary to release the connection between the basic space trusses whose bending angle is to be changed, and the scaffold can be simply adjusted by adjusting the length of the diagonal member of the plane frame. Since the shape can be changed, it is possible to change the shape while the working suspension scaffolding is being lifted.
【００１６】また、本願の請求項２にかかる発明では、
前記請求項１において、前記平面フレームを構成する横
方向の弦材のうち、少なくとも１方が伸縮調節可能であ
ることを特徴とする。In the invention according to claim 2 of the present application,
In the first aspect, at least one of the lateral chord members forming the flat frame is adjustable in expansion and contraction.
【００１７】当該構成によれば、基本立体トラス毎に上
下の平面フレームを平行四辺形ばかりでなく、台形等の
様々な四角形にも形成できるため、さらに複雑な建築物
の表面形状に対応でき、しかも大きく屈曲させても平面
フレームの横方向のトラス部材間を十分に離間させてお
くことができるから、トラス架構の強度を高く維持でき
るとともに足場面積を広く確保し得る。According to this structure, the upper and lower plane frames can be formed not only in the parallelogram but also in various quadrangles such as trapezoids for each basic space truss, so that it is possible to cope with more complicated surface shapes of buildings, Moreover, since the truss members in the lateral direction of the plane frame can be sufficiently separated from each other even if they are largely bent, the strength of the truss frame can be maintained high and the scaffolding area can be secured widely.
【００１８】[0018]
【発明の実施の形態】以下、本発明の好適な実施形態に
ついて添付図面を参照して詳細に説明する。図１は本発
明にかかる作業用吊り足場の形状可変トラス架構の第１
実施形態を概略的に示す斜視図であり、図２はその形状
可変トラス架構の最小構成単位をなす基本立体トラスを
示す斜視図である。BEST MODE FOR CARRYING OUT THE INVENTION Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a first view of a variable shape truss frame of a work suspension scaffold according to the present invention.
FIG. 2 is a perspective view schematically showing an embodiment, and FIG. 2 is a perspective view showing a basic space truss which is a minimum structural unit of the variable shape truss frame.
【００１９】図示するように当該作業用吊り足場の形状
可変トラス架構１０は、建築物１５上部から張り出した
鉄骨梁等から垂下されるワイヤ１１によって吊り下げら
れて、ワイヤ１１を巻き上げることにより建築物１５の
外壁面１５ａに沿って昇降移動されるようになってい
る。As shown in the drawing, the variable shape truss frame 10 of the working suspension scaffold is suspended by a wire 11 suspended from a steel beam or the like projecting from the upper portion of the building 15, and the wire 11 is rolled up to construct the building. It is configured to be moved up and down along the outer wall surface 15a of the fifteen.
【００２０】上記形状可変トラス架構１０は、多数の基
本立体トラス１４が建築物１５の外壁面１５ａに沿って
横方向に連設形成されてなり、その基本立体トラス１４
は次のように構成されている。The shape-variable truss frame 10 comprises a large number of basic space trusses 14 which are continuously formed in a row along the outer wall surface 15a of the building 15.
Is configured as follows.
【００２１】即ち、長短各１対の固定長トラス部材から
なる計４本の弦材１ａ，１ａ，１ｂ，１ｂが相互にピン
継手２により回動自在に結合されて平行四辺形リンク４
に形成されるとともに、この平行四辺形リンク４にはそ
の対角線の一方に沿って、当該平行四辺形リンク４の形
状を変形させるための伸縮調節可能な可変長トラス部材
（例えば、油圧等の流体圧作動式ジャッキあるいはネジ
式ジャッキ等）でなる斜材５が設けられて平面フレーム
１２として形成される。ここで、斜材５の両端はやはり
ピン継手２により回動自在に平行四辺形リンク４の２つ
の節点に結合される。That is, a total of four chord members 1a, 1a, 1b, 1b, each consisting of a pair of fixed-length truss members, one long and one short, are rotatably connected to each other by a pin joint 2 to form a parallelogram link 4.
The parallelogram link 4 has a variable length truss member (e.g., fluid such as hydraulic pressure) that can be expanded and contracted for deforming the shape of the parallelogram link 4 along one of its diagonals. A diagonal member 5 made of a pressure actuated jack or a screw jack is provided to form the flat frame 12. Here, both ends of the diagonal member 5 are also rotatably connected to the two nodes of the parallelogram link 4 by the pin joints 2.
【００２２】そして、この平面フレーム１２は所定の高
さ間隔をあけられて上下一対で平行に配され、それらの
４隅が固定長のトラス部材でなる４本の束材１３によっ
て繋がれて６面体をなすトラス体に形成され、これが上
記基本立体トラス１４とされる。The plane frame 12 is arranged in parallel in a pair with the upper and lower sides at a predetermined height interval, and the four corners thereof are connected by four bundle members 13 made of truss members having a fixed length. It is formed into a truss body forming a face body, and this is the basic space truss 14.
【００２３】ここで、上下に配される平面フレーム１
２，１２に設けた可変長の斜材５は、互いに常に等しい
長さに設定され、上下の平面フレーム１２，１２は絶え
ず同一形状に保たれ、図示するように平面フレーム１２
の平行四辺形リンク４が矩形の長方形を呈して、基本立
体トラス１４が直方体をなす状態が基準形状とされる。Here, the plane frames 1 arranged above and below
The variable length diagonal members 5 provided on the Nos. 2 and 12 are always set to be equal to each other, and the upper and lower plane frames 12 and 12 are constantly kept in the same shape.
The parallelogram link 4 has a rectangular shape and the basic space truss 14 has a rectangular parallelepiped shape as a reference shape.
【００２４】そして、この基本立体トラス１４は、その
平面フレーム１２における一方の長尺側の弦材１ａが建
築物１５の外壁面１５ａに沿わされて横向きに、他方の
短尺側の弦材１ｂが外壁面１５ａに対して交差するよう
に縦向きにされて配置され、この短尺な縦方向の弦材１
ｂと高さ方向に配された束材１３とがなす鉛直な四辺形
トラス面を共有して、当該基本立体トラス１４が建築物
１５の壁面１５ａに沿って多数横方向に連設されること
により、作業用吊り足場の形状可変トラス架構１０とし
て形成される。In this basic space truss 14, one long side chord member 1a of the flat frame 12 is laterally arranged along the outer wall surface 15a of the building 15, and the other short side chord member 1b is arranged. The short vertical chord member 1 is arranged vertically so as to cross the outer wall surface 15a.
A large number of the basic three-dimensional trusses 14 are arranged in the lateral direction along the wall surface 15a of the building 15, sharing the vertical quadrilateral truss surface formed by b and the bundles 13 arranged in the height direction. Thus, the variable shape truss frame 10 of the suspension scaffold for work is formed.
【００２５】なお、作業用吊り足場は上記基本立体トラ
ス１４における下側の各平面フレーム１２上に足場部材
が掛け渡されて設置されることにより形成される。The working suspension scaffold is formed by installing scaffolding members on each of the lower plane frames 12 of the basic space truss 14.
【００２６】次に、以上の構成でなる形状可変トラス架
構１０の形状変形例について説明する。図３（ａ）は、
上記基準形状となっている形状可変トラス架構１０の平
面図であり、同図（ｂ）はその基準形状における基本立
体トラス１４の平面図である。図示するように、上下の
平面フレーム１２，１２を構成している横方向の弦材１
ａと縦方向の弦材１ｂは固定長であるため、これらが形
成する平行四辺形リンク４は、可変長の斜材５を伸縮す
ることでその形状が矩形の長方形形状から図３（ｃ），
（ｄ）のような平行四辺形に変化する。そして、その平
行四辺形の水平面内における傾斜角度αは連続的に変形
させることができ、かつ個々の基本立体トラス１４毎に
その傾斜角度αは任意に設定できる。Next, a modification of the shape of the variable shape truss frame 10 having the above structure will be described. Figure 3 (a) shows
FIG. 3 is a plan view of the variable shape truss frame 10 having the reference shape, and FIG. 6B is a plan view of the basic space truss 14 in the reference shape. As shown in the figure, the horizontal chord members 1 that constitute the upper and lower flat frames 12, 12.
Since a and the vertical chord member 1b have a fixed length, the parallelogram link 4 formed by them has a rectangular shape whose shape is rectangular by expanding and contracting the diagonal member 5 having a variable length as shown in FIG. ，
It changes into a parallelogram as shown in (d). The inclination angle α in the horizontal plane of the parallelogram can be continuously deformed, and the inclination angle α can be set arbitrarily for each basic space truss 14.
【００２７】従って、個々の基本立体トラス１４の上記
傾斜角度αを均一にすれば、図４（ａ），（ｂ）の平面
図に示すように、形状可変トラス架構１０の全体形態を
上記基準形状に対して水平面内で任意の角度（π／２−
α）をなして一直線状延びる形状に変形できる。また、
個々の基本立体トラス１４の上記傾斜角αを形状可変ト
ラス架構１０の一端側から他端側に向けて徐々に強めて
ゆくことで、図４（ｃ），（ｄ）に示すように、全体形
態として湾曲した形状に変形できる。Therefore, if the inclination angles α of the individual basic space trusses 14 are made uniform, as shown in the plan views of FIGS. 4 (a) and 4 (b), the overall shape of the variable shape truss frame 10 is based on the above standard. An arbitrary angle (π / 2- in the horizontal plane with respect to the shape
α) and can be deformed into a straight extending shape. Also,
By gradually increasing the inclination angle α of each basic space truss 14 from one end side to the other end side of the variable shape truss frame 10 as shown in FIGS. 4 (c) and 4 (d), The shape can be transformed into a curved shape.
【００２８】即ち、図５（ａ）に示すように建築物１５
の外壁面１５ａが大きな凹凸部分や屈曲部分のない平坦
面の場合には、個々の基本立体トラス１４が直方体を呈
するように、上下の平面フレーム１２の各斜材５の長さ
を調節して、形状可変トラス架構１０の全体形態を外壁
面１５ａに沿って横方向に一直線状に延びる形状に形成
する。また、図５（ｂ），（ｃ），（ｄ）に示すように
建築物１５の外壁面１５ａが水平断面で直線的に大きく
屈曲するあるいは曲線的に大きく湾曲する凹凸部を有す
る場合には、その凹凸部に対応する箇所の各基本立体ト
ラス１４の斜材５を伸縮調節して傾斜角αをそれぞれ適
宜任意に変更することで、形状可変トラス架構１０全体
としての形態を建築物１５の凹凸部に沿わせて屈曲ある
いは湾曲した形状に設定し得る。That is, as shown in FIG. 5A, the building 15
When the outer wall surface 15a of the above is a flat surface without large uneven portions or bent portions, the lengths of the diagonal members 5 of the upper and lower flat frames 12 are adjusted so that the individual basic space trusses 14 have a rectangular parallelepiped shape. The overall shape of the variable shape truss frame 10 is formed in a shape that extends linearly in the lateral direction along the outer wall surface 15a. In addition, as shown in FIGS. 5 (b), (c), and (d), when the outer wall surface 15a of the building 15 has a concavo-convex portion that greatly bends linearly or curves greatly in a horizontal section, , The shape of the shape-changeable truss frame 10 as a whole is adjusted by adjusting the expansion and contraction of the diagonal member 5 of each basic space truss 14 at the portion corresponding to the uneven portion to appropriately change the inclination angle α. It may be set to have a bent or curved shape along the uneven portion.
【００２９】また、図６（ａ）のように建築物１５の外
壁面１５ａの形状が鉛直方向の途中から変わるような場
合にも、外壁面１５ａが平坦である低層階の作業時に
は、作業用吊り足場のトラス架構１０形状を直線上に伸
びた形状となるように斜材５の長さを設定しておき、外
壁面１５ａに大きな突出部のある高層階に至る直前で、
吊り下げられた状態のまま、その形状可変トラス架構１
０の各基本立体トラス１４の斜材５の長さを調節するこ
とによって、作業用吊り足場を地上に降ろして分解・再
組立することなく、容易に建築物１５の突出部のある階
層の外壁面１５ａ形状に対応する形態にトラス架構１０
を形状変更でき、もって爾後、そのまま昇降移動させ得
る。Further, even when the shape of the outer wall surface 15a of the building 15 is changed from the middle in the vertical direction as shown in FIG. 6 (a), it is used for work on a lower floor where the outer wall surface 15a is flat. The length of the diagonal member 5 is set so that the shape of the truss frame 10 of the suspension scaffold extends in a straight line, and immediately before reaching the high floor with a large protruding portion on the outer wall surface 15a,
The shape-changing truss frame 1 in the suspended state
By adjusting the length of the diagonal member 5 of each basic space truss 14 of 0, the work suspension scaffolding can be easily placed outside the floor having the projecting portion of the building 15 without dismounting and reassembling. The truss frame 10 has a shape corresponding to the shape of the wall surface 15a.
The shape can be changed, and after that, it can be moved up and down as it is.
【００３０】さらに、図６（ｂ）に示すように建築物外
壁面１５ａが円弧形状で鉛直方向に連続的に曲率が変化
するような建築物についても、本発明の形状可変トラス
架構１０であれば、個々の基本立体トラス１４の斜材５
を適宜任意に伸縮調節することにより、それぞれの基本
立体トラス１４毎に無段階に傾斜角度αを設定変更でき
るから、作業用吊り足場を吊り下げたままの状態で、必
要に応じて逐次形状変更させることができ、外壁面１５
ａの下端部から上端部に至るまで形状可変トラス架構１
０を地上に降ろすことなくその形態を壁面形状に沿った
形状に維持しつつ昇降移動させることができる。Further, as shown in FIG. 6 (b), the shape-variable truss frame 10 of the present invention is also applicable to a building in which the building outer wall surface 15a has an arcuate shape and its curvature continuously changes in the vertical direction. For example, diagonal members 5 of each basic space truss 14
Since the setting of the inclination angle α can be changed steplessly for each of the basic space trusses 14 by appropriately adjusting the expansion and contraction, the shape of the working scaffolding can be changed sequentially as it is suspended. The outer wall surface 15
Shape-changeable truss frame 1 from the lower end to the upper end of a
It is possible to move up and down while maintaining the shape in a shape along the wall surface shape without dropping 0 onto the ground.
【００３１】尚、上記実施形態では平面フレーム１２が
平行四辺形をなす例を示したが、当該平面フレーム１２
の形状は必ずしも平行四辺形である必要はなく、四辺形
をなしていれば、上記効果を得ることができる。In the above embodiment, the flat frame 12 has a parallelogram shape.
The shape of does not necessarily have to be a parallelogram, and if it is a quadrilateral, the above effect can be obtained.
【００３２】図７は本発明にかかる形状可変トラス架構
の第２実施形態を示す。この第２実施形態の形状可変ト
ラス架構１０Ａは、基本的に前述した第１実施形態の形
状可変トラス架構１０の構成を全て備えており、その相
違する点は、基本立体トラス１４Ａにおいて、上下の各
平面フレーム１２を構成する１対の横方向の弦材１ａの
うち少なくとも一方が、伸縮可能な可変長トラス部材に
置換されていることだけである。なお、ここで、この図
７の第２実施形態では、１対の横方向の弦材１ａ，１ａ
の一方に可変長トラス部材を組み込むにあたって、建築
物１５に近接する側の弦材１ａと離間する側の弦材１ａ
とに順次交互に配設するようにしている。FIG. 7 shows a second embodiment of the variable shape truss frame according to the present invention. The shape-variable truss frame 10A of the second embodiment basically includes all the configurations of the shape-variable truss frame 10 of the first embodiment described above, and the difference is that in the basic space truss 14A, It is only that at least one of the pair of lateral chord members 1a forming each flat frame 12 is replaced with a stretchable variable length truss member. Here, in the second embodiment of FIG. 7, a pair of lateral chord members 1a, 1a is provided.
When incorporating the variable length truss member into one of the two, the chord member 1a on the side close to the building 15 and the chord member 1a on the side separated from the building 15
And are arranged alternately in sequence.
【００３３】当該構成によれば、各基本立体トラス１４
Ａにおいて、上下の平面フレーム１２で同一側に配設さ
れた可変長の弦材１ａの長さを等しく保ちつつ伸縮調整
して、他方側の長さと違えることにより、平面フレーム
１２の四辺形リンクがなす形状を、台形を含んで多様に
設定できるようになるので、さらに複雑な外壁面形状に
対応させて形状可変トラス架構１０Ａの全体形態を形状
変形させることができる。According to this structure, each basic space truss 14
In A, the quadrangular link of the flat frame 12 is adjusted by expanding and contracting while keeping the lengths of the variable-length chords 1a arranged on the same side in the upper and lower flat frames 12 different from the length on the other side. Since it is possible to set various shapes including the trapezoidal shape, it is possible to deform the overall shape of the variable shape truss frame 10A in accordance with a more complicated outer wall surface shape.
【００３４】即ち、基本トラス１４の平面形状は、弦材
１ａに可変長のトラス部材を設けたことにより様々な四
角形を形成することが可能になり、図７に示すような矩
形に突き出した外壁面１５ａに対しても、これに沿わせ
て容易に足場形状を変更させて、壁面に沿って昇降移動
させることが可能である。That is, the planar shape of the basic truss 14 can be formed into various quadrilaterals by providing the chord member 1a with a variable length truss member, and the outer shape protruding into a rectangle as shown in FIG. Also for the wall surface 15a, it is possible to easily change the scaffold shape along the wall surface 15a and move up and down along the wall surface.
【００３５】[0035]
【発明の効果】以上に詳細に説明したように、本願の請
求項１に係る発明の作業用吊り足場の形状可変トラス架
構によれば、基本立体トラスの上下面を構成する平面フ
レームの可変長の斜材を伸縮して長さ調節することによ
り、平面フレームが形成する四辺形の傾斜角度を自由に
変えることはもちろん、大きな角度に屈曲することも可
能であり、隣接して連なった各々の平面フレームの傾斜
角度を任意に変更することにより、作業用吊り足場を建
築物の壁面に合わせた任意の形状に形成することが可能
である。As described in detail above, according to the shape-changing truss frame of the working suspension scaffold of the invention according to claim 1 of the present invention, the variable length of the plane frame constituting the upper and lower surfaces of the basic space truss is variable. By expanding and contracting the diagonal member of the to adjust the length, it is possible not only to freely change the inclination angle of the quadrilateral formed by the flat frame, but also to bend it to a large angle, and By arbitrarily changing the inclination angle of the plane frame, it is possible to form the work suspension scaffold into an arbitrary shape that matches the wall surface of the building.
【００３６】また、吊り足場の形状を変更する場合で
も、その屈曲角度を変更させようとする基本立体トラス
間の結合を解く必要はなく、平面フレームの斜材の長さ
を調節するだけで足場の形状変更が可能なため、作業用
吊り足場を吊り上げた状態のままで形状を変えることが
可能である。Even when the shape of the suspended scaffold is changed, it is not necessary to release the connection between the basic space trusses whose bending angle is to be changed, and the scaffold can be simply adjusted by adjusting the length of the diagonal member of the plane frame. Since the shape can be changed, it is possible to change the shape of the work suspension scaffold in a state of being lifted.
【００３７】また、本願の請求項２にかかる発明の作業
用足場のトラス架構によれば、基本立体トラス毎に上下
の平面フレームを平行四辺形ばかりでなく、台形等の様
々な四角形にも形成できるため、さらに複雑な表面形状
の建築物に対応でき、しかも大きく屈曲させても平面フ
レームの横方向のトラス部材間を十分に離間させておく
ことができるから、トラス架構の強度を高く維持できる
とともに足場面積を広く確保することができる。Further, according to the truss frame for work scaffolding of the invention according to claim 2 of the present application, the upper and lower plane frames are formed not only in the parallelogram but also in various quadrangles such as trapezoids for each basic space truss. Therefore, it is possible to cope with a building having a more complicated surface shape, and the truss members in the lateral direction of the plane frame can be sufficiently separated from each other even when they are greatly bent, so that the strength of the truss frame can be maintained high. Along with that, a wide scaffold area can be secured.
【図１】本発明にかかる作業用吊り足場のトラス架構の
第１実施形態を示す概略図である。FIG. 1 is a schematic view showing a first embodiment of a truss frame for a working scaffold according to the present invention.
【図２】図１の形状可変トラス架構の最小構成単位であ
る基本立体トラスを示す概略図である。FIG. 2 is a schematic view showing a basic space truss which is a minimum structural unit of the variable shape truss frame of FIG.
【図３】（ａ）は図１の形状可変トラス架構の基本形状
を示す平面図であり、（ｂ）はその最小構成単位の基本
立体トラスの１つを取り出して示す平面図、（ｃ）及び
（ｄ）はそれぞれ基本立体トラスの形状変形例を示す平
面図である。3A is a plan view showing the basic shape of the variable shape truss frame of FIG. 1, FIG. 3B is a plan view showing one of the basic three-dimensional trusses of the minimum constitutional unit, and FIG. And (d) are plan views showing modified examples of the shape of the basic space truss.
【図４】（ａ）〜（ｄ）はいずれも図１の形状可変トラ
ス架構の形状変形例を示す平面図である。4 (a) to 4 (d) are plan views each showing a modified shape of the variable shape truss frame structure shown in FIG.
【図５】（ａ）〜（ｄ）はいずれも図１の形状可変トラ
ス架構の建築物への適用例を示す平面図である。5 (a) to (d) are plan views each showing an application example of the variable shape truss frame of FIG. 1 to a building.
【図６】（ａ），（ｂ）はいずれも図１の形状可変トラ
ス架構を建築物の表面形状に対応させた他の例を示す概
略斜視図である。6A and 6B are schematic perspective views showing another example in which the variable shape truss frame of FIG. 1 is made to correspond to the surface shape of a building.
【図７】本発明にかかる作業用吊り足場の形状可変トラ
ス架構の第２実施形態を概略的に示す平面図で、外壁面
に矩形の突出部を有する建築物に適用した例を示すもの
である。FIG. 7 is a plan view schematically showing a second embodiment of a variable shape truss frame for a work suspension scaffold according to the present invention, showing an example applied to a building having a rectangular protrusion on the outer wall surface. is there.
【図８】従来の形状可変吊り足場に用いられるトラス架
構の概略構成を示す平面図である。FIG. 8 is a plan view showing a schematic configuration of a truss frame used for a conventional variable shape suspension scaffold.
【図９】図８の斜視図である。9 is a perspective view of FIG. 8. FIG.
１ａ，１ｂ 弦材 ２ ピン継手 ４ 平行四辺形リンク ５ 斜材 １０，１０Ａ 形状可変トラス架構 １１ ワイヤ １２ 平面フレーム １３ 束材 １４，１４Ａ 基本立体トラス １５ 建築物 １５ａ 外壁面 1a, 1b chord material 2 pin joint 4 parallelogram links 5 diagonal materials 10,10A shape variable truss frame 11 wires 12 flat frame 13 bundles 14,14A Basic space truss 15 Building 15a outer wall
───────────────────────────────────────────────────── フロントページの続き (72)発明者 古屋 則之 東京都清瀬市下清戸４丁目640番地 株 式会社大林組技術研究所内 (56)参考文献 特開 平３−45499（ＪＰ，Ａ) 特開 昭60−30762（ＪＰ，Ａ) 実開 平６−59530（ＪＰ，Ｕ) 特公 昭45−12907（ＪＰ，Ｂ１) (58)調査した分野(Int.Cl.7，ＤＢ名) E04G 3/10 F16S 3/08 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Noriyuki Furuya 4-640 Shimoseido, Kiyose-shi, Tokyo Inside Obayashi Technical Research Institute Co., Ltd. (56) Reference JP-A-3-45499 (JP, A) JP-A-SHO 60-30762 (JP, A) Actual Kaihei 6-59530 (JP, U) JP-B-45-12907 (JP, B1) (58) Fields investigated (Int.Cl. 7 , DB name) E04G 3/10 F16S 3/08
Claims (2)
れて昇降移動される作業用吊り足場のトラス架構であっ
て、 ２対の弦材を縦横に回動自在に結合して四辺形リンクを
形成するとともに、該四辺形リンクにはその対角線に沿
って伸縮調節可能な可変長の斜材を設けて平面フレーム
となし、 該平面フレームを所定の高さを隔てて上下一対に平行配
置して、これらの４隅を固定長の束材で繋いで最小構成
単位の基本立体トラスを構成し、 該基本立体トラスを多数、その平面フレームの縦方向の
弦材と束材とを共有させつつ横方向に連設させてなり、 前記斜材を伸縮して前記平面フレームが形成する四辺形
の傾斜角度を変更することにより、前記構築物の外壁面
に合わせた形状に形成する ことを特徴とする作業用吊り
足場の形状可変トラス架構。1. A truss frame for a work-use hanging scaffold that is extended laterally along the outer wall surface of a structure and is moved up and down, wherein two pairs of chord members are rotatably connected vertically and horizontally to form four sides. In addition to forming a rectangular link, the quadrilateral link is provided with a diagonal member of a variable length that can be adjusted to expand and contract along the diagonal line to form a flat frame, and the flat frame is vertically paired at a predetermined height. Arrange them and connect these four corners with a fixed-length bundle to form a basic three-dimensional truss, which is the minimum structural unit. A large number of the basic three-dimensional trusses are shared by the vertical chords and bundles of the plane frame. Ri Na by consecutively laterally while, quadrilateral said planar frame by stretching the diagonal member is formed
By changing the inclination angle of the
A variable shape truss frame for work suspension scaffolds, which is characterized in that
ムを構成する横方向の弦材のうち、少なくとも１方が伸
縮調節可能であることを特徴とする作業用吊り足場の形
状可変トラス架構。2. The variable shape truss frame for working scaffolding according to claim 1, wherein at least one of the lateral chord members constituting the plane frame is adjustable in expansion and contraction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18469898A JP3489447B2 (en) | 1998-06-30 | 1998-06-30 | Variable-truss truss frame for suspended work platforms |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18469898A JP3489447B2 (en) | 1998-06-30 | 1998-06-30 | Variable-truss truss frame for suspended work platforms |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000017832A JP2000017832A (en) | 2000-01-18 |
| JP3489447B2 true JP3489447B2 (en) | 2004-01-19 |
Family
ID=16157825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18469898A Expired - Fee Related JP3489447B2 (en) | 1998-06-30 | 1998-06-30 | Variable-truss truss frame for suspended work platforms |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3489447B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912973A (en) * | 2012-10-25 | 2013-02-06 | 广州市恒盛建设工程有限公司 | Space truss platform for round building construction and construction method using same |
| JP2016180218A (en) * | 2015-03-23 | 2016-10-13 | 東急建設株式会社 | Movable frame device |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2808274B1 (en) | 2000-04-28 | 2002-07-12 | Poudres & Explosifs Ste Nale | PROCESS FOR THE PREPARATION OF N, N'-CARBONYLBISLACTAMES |
| JP5771830B2 (en) * | 2011-03-30 | 2015-09-02 | 日本ビソー株式会社 | Corner work gondola device |
| WO2016079372A1 (en) * | 2014-11-21 | 2016-05-26 | Fast Beam Oy | Scaffolding arrangement |
| CN107268967A (en) * | 2017-08-03 | 2017-10-20 | 北京城建六建设集团有限公司 | A kind of high-altitude English truss platform for construction |
| CN108797991A (en) * | 2018-06-27 | 2018-11-13 | 中国化学工程第四建设有限公司 | Suspension type lifting lug scaffold installation method |
| CN109403412A (en) * | 2018-12-21 | 2019-03-01 | 福建建中建设科技股份有限公司 | A kind of city inland river Accrete clearing device and its application method |
| CN113323356A (en) * | 2021-04-23 | 2021-08-31 | 宁波工程学院 | A hanging device for construction of building outer wall |
-
1998
- 1998-06-30 JP JP18469898A patent/JP3489447B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102912973A (en) * | 2012-10-25 | 2013-02-06 | 广州市恒盛建设工程有限公司 | Space truss platform for round building construction and construction method using same |
| CN102912973B (en) * | 2012-10-25 | 2014-09-10 | 广州市恒盛建设工程有限公司 | Space truss platform for round building construction and construction method using same |
| JP2016180218A (en) * | 2015-03-23 | 2016-10-13 | 東急建設株式会社 | Movable frame device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2000017832A (en) | 2000-01-18 |
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