JP2005090061A

JP2005090061A - Scaffold, strut material used for the scaffold and assembling method of the strut material in the scaffold

Info

Publication number: JP2005090061A
Application number: JP2003323891A
Authority: JP
Inventors: Fumitaka Nakamura; 文孝中村
Original assignee: Abekogyosho Co Ltd
Current assignee: Abekogyosho Co Ltd
Priority date: 2003-09-17
Filing date: 2003-09-17
Publication date: 2005-04-07

Abstract

<P>PROBLEM TO BE SOLVED: To provide a scaffold capable of facilitating the handling thereof and simply carrying out assembly work. <P>SOLUTION: The scaffold 2 is equipped with a plurality of struts 3 and 3, a plurality of connecting materials 4 and 4 connecting the struts 3 and 3. Then, a strut material 5 forming the strut 3 is equipped with a first member 5a formed in the shape of a cylinder, a second member 5b pulled out from the inside of the first member 5a so as to consecutively extend from the first member 5a formed in the shape of a cylinder and a third member 5c pulled out from the inside of the second member 5b so as to consecutively extend from the second member 5b. The strut material 5 is thereby formed in an expansible manner. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

この発明は、取扱いが容易な、足場、足場に用いられる支柱材、および足場における支柱材の組立て方法に関するものである。 The present invention relates to a scaffold that is easy to handle, a support member used in the scaffold, and a method of assembling the support member in the scaffold.

従来の足場は、一般に、パイプからなる支柱材および水平材、そしてブレース等の各パーツが組み付けられて形成されていた。そして、支柱材においては、単管が用いられ、これら単管が連結されて、足場の支柱部分が構成されていた。 Conventional scaffolds are generally formed by assembling parts such as pipe struts and horizontal members, and braces. And in the support | pillar material, the single pipe | tube was used and these single pipe | tubes were connected and the support | pillar part of the scaffold was comprised.

ところで、前記従来の足場にあっては、その支柱部分は、単管が継ぎ足されて形成されていたため、全体のパーツの点数が多くなっていた。そのため、足場を組み立てる前、あるいは解体した後、すなわち、分解された状態の足場が嵩張り、その取り扱いが面倒であったり、また、足場の組立てに、多くの時間を要していた。 By the way, in the said conventional scaffold, since the support | pillar part was formed by adding a single pipe, the number of parts of the whole was large. Therefore, before assembling the scaffold or after dismantling, that is, the disassembled scaffold is bulky, and its handling is troublesome, and it takes a lot of time to assemble the scaffold.

この発明は、上記した従来の欠点を解決するためになされたものであり、その目的とするところは、取扱いが容易となり、かつ、組立てを簡単に行うことができる、足場、足場に用いられる支柱材、および足場における支柱材の組立て方法を提供することにある。 The present invention has been made to solve the above-described conventional drawbacks, and the object of the present invention is to provide a scaffold for use in a scaffold and a scaffold that can be easily handled and can be easily assembled. It is to provide a method for assembling a material and a support material in a scaffold.

この発明に係る、足場、足場に用いられる支柱材、および足場における支柱材の組立て方法は、前記目的を達成するために、次の構成からなる。すなわち、
請求項１に記載の発明に係る足場は、複数の支柱と、それら支柱を連結する複数の連結材とを備える足場である。ここで、前記支柱を構成する支柱材は、筒状に形成された第１部材と、その第１部材から連続して延びるようにその第１部材内から引き出される第２部材とを備えて、伸縮可能に形成されている。 In order to achieve the object, the scaffold, the strut material used in the scaffold, and the method of assembling the strut material in the scaffold according to the present invention have the following configurations. That is,
The scaffold according to the first aspect of the present invention is a scaffold including a plurality of struts and a plurality of connecting members that connect the struts. Here, the column material constituting the column includes a first member formed in a cylindrical shape, and a second member drawn out from the first member so as to continuously extend from the first member, It is formed to be stretchable.

このように、足場の支柱を構成する支柱材は、第２部材が、筒状に形成された第１部材から引き出されることで、その第１部材から連続して延びることとなる。こうして、支柱材、ひいては支柱は、その長さが確保される。そして、支柱が、複数の連結材によって連結されて、足場が形成される。ここで、支柱材は、第２部材が第１部材内から引き出される前においては、すなわち、支柱材が伸ばされる前においては、第２部材が、第１部材内に収容されており、コンパクト化されている。そして、第２部材を第１部材内から引き出すことで、すなわち、支柱材を伸ばすことで、支柱材を組み立てることができ、この支柱材、ひいては足場は、簡単に組み立てられる。 Thus, the support | pillar material which comprises the support | pillar of a scaffold extends continuously from the 1st member by the 2nd member being pulled out from the 1st member formed in the cylinder shape. In this way, the length of the support material, and thus the support material, is ensured. And a support | pillar is connected with a some connection material, and a scaffold is formed. Here, before the second member is pulled out from the first member, that is, before the support member is extended, the second member is accommodated in the first member, so that the support member is compact. Has been. Then, by pulling out the second member from the first member, that is, by extending the support member, it is possible to assemble the support member, and the support member, and thus the scaffold, can be easily assembled.

また、請求項２に記載の発明に係る足場は、請求項１に記載の足場において、前記支柱材における前記第２部材は、一対設けられている。そこで、その一対の第２部材における一方の第２部材は、前記第１部材から上方に連続して延びるようにその第１部材内から上方に引き出される。そして、前記一対の第２部材における他方の第２部材は、前記第１部材から下方に連続して延びるようにその第１部材内から下方に引き出される。このように、第２部材が一対設けられ、それら第２部材が、第１部材に対して上方と下方のそれぞれに引き出されることで、上方あるいは下方の一方のみに引き出される場合と比較して、第２部材の長さを短くすることができ、この支柱材の耐力が高くなる。 The scaffold according to the invention described in claim 2 is the scaffold according to claim 1, wherein a pair of the second members in the support material is provided. Therefore, one second member of the pair of second members is drawn upward from the first member so as to continuously extend upward from the first member. Then, the other second member of the pair of second members is drawn downward from the first member so as to continuously extend downward from the first member. In this way, a pair of second members are provided, and these second members are pulled out upward and downward with respect to the first member, so that they are pulled out only to one of the upper and lower sides, The length of the second member can be shortened, and the proof stress of the support material is increased.

また、請求項３に記載の発明に係る足場は、請求項２に記載の足場において、前記一対の第２部材は、前記第１部材内に収容されているとき、前記一方の第２部材と前記他方の第２部材との基端部が、対向位置する。 The scaffold according to the invention described in claim 3 is the scaffold according to claim 2, wherein when the pair of second members are housed in the first member, the one second member and A base end portion with the other second member is opposed to the second member.

また、請求項４に記載の発明に係る足場は、請求項１ないし３のいずれか１項に記載の足場において、前記支柱材は、前記第１部材からの前記第２部材の引き出し位置を調整して、その第２部材を前記第１部材に固定する、調整固定手段を備える。このように、調整固定手段により、第２部材は、第１部材からの引き出し位置が調整され、こうして、支柱材の高さ寸法が調整される。 According to a fourth aspect of the present invention, in the scaffold according to any one of the first to third aspects, the strut member adjusts a drawing position of the second member from the first member. And the adjustment fixing means which fixes the 2nd member to the said 1st member is provided. As described above, the adjustment fixing means adjusts the drawing position of the second member from the first member, and thus adjusts the height dimension of the support material.

また、請求項５に記載の発明に係る足場は、請求項１ないし４のいずれか１項に記載の足場において、前記第１部材と前記第２部材との間には、前記第２部材が前記第１部材から抜け出るのを阻止する、抜止め手段が設けられている。こうして、抜止め手段により、第２部材は、第１部材から抜け出るのが阻止されるので、第１部材と第２部材とが分離することはなく、取扱いが容易となる。 Further, the scaffold according to the invention of claim 5 is the scaffold according to any one of claims 1 to 4, wherein the second member is between the first member and the second member. A retaining means is provided for preventing the first member from slipping out. Thus, since the second member is prevented from coming out of the first member by the retaining means, the first member and the second member are not separated, and the handling becomes easy.

また、請求項６に記載の発明に係る足場は、請求項１ないし５のいずれか１項に記載の足場において、前記第１部材には、前記複数の連結材における適宜の連結材を接続するための第１接続具が設けられており、前記第２部材の先端部には、前記複数の連結材における適宜の連結材を接続するための第２接続具が設けられている。こうして、第１部材および第２部材に、連結材を接続する第１接続具および第２接続具を設けることで、支柱材、ひいては支柱は、容易に連結される。 The scaffold according to the invention of claim 6 is the scaffold according to any one of claims 1 to 5, wherein the first member is connected to an appropriate connecting material in the plurality of connecting materials. The 1st connection tool for this is provided, and the 2nd connection tool for connecting the suitable connection material in the said several connection material is provided in the front-end | tip part of the said 2nd member. Thus, by providing the first member and the second member with the first connection tool and the second connection tool for connecting the connection material, the support material and the support material can be easily connected.

また、請求項７に記載の発明に係る足場は、請求項２に記載の足場において、前記一対の第２部材は、筒状に形成されている。そして、前記支柱材は、一対の第３部材を備える。そこで、その一対の第３部材における一方の第３部材は、前記一方の第２部材から上方に連続して延びるようにその一方の第２部材内から上方に引き出される。そして、前記一対の第３部材における他方の第３部材は、前記他方の第２部材から下方に連続して延びるようにその他方の第２部材内から下方に引き出される。このように、支柱材は、第１部材から引き出される一対の第２部材に加えて、一対の第２部材から引き出される一対の第３部材を備えてもよい。そして、この第３部材を備えることで、支柱材が伸ばされる前においては、一層コンパクト化されている。 According to a seventh aspect of the present invention, in the scaffold according to the second aspect, the pair of second members are formed in a cylindrical shape. The strut member includes a pair of third members. Therefore, one third member of the pair of third members is drawn upward from the one second member so as to continuously extend upward from the one second member. The other third member of the pair of third members is drawn downward from the other second member so as to continuously extend downward from the other second member. Thus, in addition to the pair of second members drawn from the first member, the strut material may include a pair of third members drawn from the pair of second members. And by providing this 3rd member, before the support | pillar material is extended, it is made more compact.

また、請求項８に記載の発明に係る足場は、請求項７に記載の足場において、前記一対の第２部材は、前記第１部材内に収容されているとき、前記一方の第２部材と前記他方の第２部材との基端部が、対向位置する。そして、前記一対の第３部材は、前記第１部材内に収容された前記第２部材内に収容されているとき、前記一方の第３部材と前記他方の第３部材との基端部が、対向位置する。 The scaffold according to the invention described in claim 8 is the scaffold according to claim 7, wherein when the pair of second members are housed in the first member, the one second member and A base end portion with the other second member is opposed to the second member. When the pair of third members are housed in the second member housed in the first member, the base end portions of the one third member and the other third member are , Opposite position.

また、請求項９に記載の発明に係る足場は、請求項１ないし８のいずれか１項に記載の足場において、前記支柱材の端部には、前記支柱を構成する継足し支柱材を接続可能とする端部接続具が設けられている。これにより、この端部接続具を介して、支柱材に継足し支柱材を接続することで、支柱を長くすることができる。 Moreover, the scaffold according to the invention of claim 9 is the scaffold according to any one of claims 1 to 8, wherein the support column material constituting the column is connected to the end of the column material. An end connector is provided that allows it. Thereby, a support | pillar can be lengthened by connecting to a support | pillar material and connecting a support | pillar material via this edge part connector.

また、請求項１０に記載の発明に係る足場は、請求項１ないし９のいずれか１項に記載の足場において、前記足場の下端部分には、移動のための複数の車輪と、その車輪を回転させるための原動機とが設けられている。これにより、原動機によって車輪を回転させて、足場を移動させることで、順次作業を行うことができるので、小規模の足場で対応することが可能となる。 A scaffold according to the invention of claim 10 is the scaffold according to any one of claims 1 to 9, wherein a plurality of wheels for movement and the wheels are provided at a lower end portion of the scaffold. And a prime mover for rotation. Accordingly, the work can be sequentially performed by rotating the wheel by the prime mover and moving the scaffold, so that it is possible to cope with a small-scale scaffold.

また、請求項１１に記載の発明に係る足場は、請求項１０に記載の足場において、前記車輪は、リンク機構により、二つ以上が同時に、その方向を変更可能となっている。こうして、リンク機構という簡単な構造で、車輪の方向が変更される。そして、この車輪の方向が変更されることで、足場を所要の方向に簡単に移動させることができる。 Further, in the scaffold according to the invention described in claim 11, in the scaffold described in claim 10, two or more of the wheels can be simultaneously changed in direction by a link mechanism. Thus, the direction of the wheel is changed with a simple structure called a link mechanism. And the scaffold can be easily moved to a required direction by changing the direction of the wheel.

また、請求項１２に記載の発明に係る足場に用いられる支柱材は、足場の支柱を構成する支柱材である。この支柱材は、筒状に形成された第１部材と、一対の第２部材とを備える。ここで、前記一対の第２部材における一方の第２部材は、前記第１部材から上方に連続して延びるようにその第１部材内から上方に引き出される。そして、前記一対の第２部材における他方の第２部材は、前記第１部材から下方に連続して延びるようにその第１部材内から下方に引き出される。 Moreover, the support | pillar material used for the scaffold based on invention of Claim 12 is a support | pillar material which comprises the support | pillar of a scaffold. This support | pillar material is provided with the 1st member formed in the cylinder shape, and a pair of 2nd member. Here, one second member of the pair of second members is drawn upward from the first member so as to continuously extend upward from the first member. Then, the other second member of the pair of second members is drawn downward from the first member so as to continuously extend downward from the first member.

このように、足場の支柱を構成する支柱材は、第２部材が、筒状に形成された第１部材から引き出されることで、その第１部材から連続して延びることとなる。こうして、支柱材は、その長さが確保される。ここで、支柱材は、第２部材が第１部材内から引き出される前においては、すなわち、支柱材が伸ばされる前においては、第２部材が、第１部材内に収容されており、コンパクト化されている。そして、第２部材を第１部材内から引き出すことで、すなわち、支柱材を伸ばすことで、支柱材を組み立てることができ、この支柱材は、簡単に組み立てられる。その上、第２部材は、一対設けられており、それら第２部材が、第１部材に対して上方と下方のそれぞれに引き出されることで、上方あるいは下方の一方のみに引き出される場合と比較して、第２部材の長さを短くすることができ、この支柱材の耐力が高くなる。 Thus, the support | pillar material which comprises the support | pillar of a scaffold extends continuously from the 1st member by the 2nd member being pulled out from the 1st member formed in the cylinder shape. Thus, the length of the support material is ensured. Here, before the second member is pulled out from the first member, that is, before the support member is extended, the second member is accommodated in the first member, so that the support member is compact. Has been. Then, by pulling out the second member from the first member, that is, by extending the support material, the support material can be assembled, and this support material is easily assembled. In addition, a pair of second members are provided, and these second members are pulled out upward and downward relative to the first member, so that they are pulled out only to one of the upper and lower sides. Thus, the length of the second member can be shortened, and the proof strength of the support material is increased.

また、請求項１３に記載の発明に係る足場に用いられる支柱材は、請求項１２に記載の支柱材において、前記第１部材の端部には、前記支柱と他の支柱とを連結する連結材を接続するための第１接続具が設けられており、前記第２部材の先端部には、前記支柱と他の支柱とを連結する他の連結材を接続するための第２接続具が設けられている。こうして、第１部材および第２部材に、連結材を接続する第１接続具および第２接続具を設けることで、この支柱材、あるいは支柱は、容易に連結される。 Moreover, the support | pillar material used for the scaffold based on invention of Claim 13 is a connection material which connects the said support | pillar and another support | pillar to the support | pillar material of Claim 12 in the edge part of said 1st member. A first connection tool for connecting the material is provided, and a second connection tool for connecting another connection material for connecting the support column and the other support column is provided at the tip of the second member. Is provided. Thus, by providing the first member and the second member with the first connection tool and the second connection tool for connecting the connection material, the support material or the support material can be easily connected.

また、請求項１４に記載の発明に係る足場に用いられる支柱材は、請求項１２に記載の支柱材において、前記一対の第２部材は、筒状に形成されている。そして、支柱材は、一対の第３部材を備える。そこで、その一対の第３部材における一方の第３部材は、前記一方の第２部材から上方に連続して延びるようにその一方の第２部材内から上方に引き出され、そして、前記一対の第３部材における他方の第３部材は、前記他方の第２部材から下方に連続して延びるようにその他方の第２部材内から下方に引き出される。このように、支柱材は、第１部材から引き出される一対の第２部材に加えて、一対の第２部材から引き出される一対の第３部材を備えてもよい。そして、この第３部材を備えることで、支柱材が伸ばされる前においては、一層コンパクト化されている。 Moreover, the support | pillar material used for the scaffold based on invention of Claim 14 is a support | pillar material of Claim 12, The said 2nd member of a pair is formed in the cylinder shape. The support material includes a pair of third members. Accordingly, one third member of the pair of third members is drawn upward from the one second member so as to continuously extend upward from the one second member, and the pair of third members The other third member of the three members is drawn downward from the other second member so as to continuously extend downward from the other second member. Thus, in addition to the pair of second members drawn from the first member, the strut material may include a pair of third members drawn from the pair of second members. And by providing this 3rd member, before the support | pillar material is extended, it is made more compact.

また、請求項１５に記載の発明に係る足場に用いられる支柱材は、請求項１２ないし１４のいずれか１項に記載の支柱材において、前記支柱の下方には、移動のための車輪が設けられる。これにより、車輪を回転させて、足場を移動させることで、順次作業を行うことができるので、小規模の足場で対応することが可能となる。 Moreover, the support | pillar material used for the scaffold concerning invention of Claim 15 is a support | pillar material of any one of Claim 12 thru | or 14, The wheel for a movement is provided under the said support | pillar. It is done. Thereby, since the work can be sequentially performed by rotating the wheel and moving the scaffold, it is possible to cope with a small-scale scaffold.

また、請求項１６に記載の発明に係る支柱材の組立て方法は、請求項１ないし１１のいずれか１項に記載の足場における、支柱材の組立て方法であって、前記支柱材の複数本を伸ばされていない状態で、少なくとも前記第１部材部分にて、前記連結材を用いて連結し、それら連結された支柱材を、吊り上げるようにして引き伸ばす。これにより、支柱材は、伸ばされる前においては、コンパクト化される。そして、連結材を用いて連結された複数本の支柱材を吊り上げるようにして引き伸ばすことで、複数本の支柱材をまとめて組み立てることができ、この支柱材、ひいては足場は、簡単に組み立てられる。 Moreover, the assembly method of the support | pillar material which concerns on invention of Claim 16 is an assembly method of the support | pillar material in the scaffold of any one of Claim 1 thru | or 11, Comprising: A plurality of the said support | pillar materials are combined. In an unstretched state, at least the first member portion is coupled using the coupling material, and the coupled strut materials are stretched so as to be lifted. As a result, the strut material is made compact before being stretched. Then, by stretching the plurality of support members connected by using the connection material, the plurality of support members can be assembled together, and this support member, and thus the scaffold, can be easily assembled.

以上、詳述したところから明らかなように、この発明に係る、足場、足場に用いられる支柱材、および足場における支柱材の組立て方法によれば、支柱材が伸ばされる前においては、コンパクト化されており、運搬等の取扱いが容易となる。そして、支柱材を伸ばすことで、支柱材を組み立てることができ、支柱材ひいては足場の組立てを簡単に行うことができる。 As is apparent from the above detailed description, according to the scaffold, the support material used for the scaffold, and the method of assembling the support material in the scaffold according to the present invention, before the support material is stretched, it is made compact. It is easy to handle such as transportation. And by extending | stretching a support | pillar material, a support | pillar material can be assembled and a support | pillar material and by extension, a scaffold can be assembled easily.

以下、この発明に係る、足場、足場に用いられる支柱材、および足場における支柱材の組立て方法を実施するための最良の形態を図面に基づいて説明する。 BEST MODE FOR CARRYING OUT THE INVENTION A best mode for carrying out a scaffold, a strut member used for a scaffold, and a method for assembling a strut member in a scaffold according to the present invention will be described below with reference to the drawings.

図１ないし図１５は、本発明の一実施の形態を示す。図中符号１は、例えば、改修工事あるいは補修工事等の対象となる、構造物としての、上水、下水、雨水等のタンクであって、図示実施の形態においては、配水池とか貯水池とか調整池等の、例えば略円形状の外周面を備えた、タンクである。２は、前記タンク１の壁１ａおよび屋根１ｂの内側の、改修あるいは補修等の工事に使用される足場であって、タンク１の底版１ｃ上に組み立てられる。 1 to 15 show an embodiment of the present invention. Reference numeral 1 in the figure denotes, for example, a tank of water, sewage, rainwater, etc. as a structure to be repaired or repaired. In the illustrated embodiment, the distribution reservoir or the reservoir is adjusted. For example, a tank having a substantially circular outer peripheral surface such as a pond. Reference numeral 2 denotes a scaffold used for construction such as repair or repair inside the wall 1 a and the roof 1 b of the tank 1, and is assembled on the bottom plate 1 c of the tank 1.

足場２は、複数の支柱３、３と、それら支柱３、３（支柱３と他の支柱３）を連結する複数の連結材４、４を備える。そこで、支柱３を構成する支柱材５は、筒状に形成された第１部材５ａと、筒状に形成されて第１部材５ａから連続して延びるようにその第１部材５ａ内から引き出される第２部材５ｂと、その第２部材５ｂから連続して延びるようにその第２部材５ｂ内から引き出される第３部材５ｃとを、備えて、伸縮可能に形成されている。 The scaffold 2 includes a plurality of support columns 3 and 3 and a plurality of connecting members 4 and 4 that connect the support columns 3 and 3 (the support column 3 and the other support column 3). Therefore, the column material 5 constituting the column 3 is drawn out from the first member 5a formed in a cylindrical shape and the first member 5a so as to extend continuously from the first member 5a. The second member 5b and the third member 5c drawn from the second member 5b so as to continuously extend from the second member 5b are provided, and are formed to be extendable.

詳細には、図４および図５に示すように、支柱材５における第２部材５ｂは、一対設けられており、その一対の第２部材５ｂ、５ｂにおける一方の第２部材５ｂは、第１部材５ａから上方に連続して延びるようにその第１部材５ａ内から上方に引き出される。そして、一対の第２部材５ｂ、５ｂにおける他方の第２部材５ｂは、第１部材５ａから下方に連続して延びるようにその第１部材５ａ内から下方に引き出される。また、支柱材５における第３部材５ｃもまた、一対設けられており、その一対の第３部材５ｃ、５ｃにおける一方の第３部材５ｃは、一方の第２部材５ｂから上方に連続して延びるようにその一方の第２部材５ｂ内から上方に引き出される。そして、一対の第３部材５ｃ、５ｃにおける他方の第３部材５ｃは、他方の第２部材５ｂから下方に連続して延びるようにその他方の第２部材５ｂ内から下方に引き出される。なお、図示実施の形態においては、第１ないし第３部材５ａ、５ｂ、５ｃは、全て、角パイプからなる。そして、これら第１ないし第３部材５ａ、５ｂ、５ｃは、例えばアルミ材からなっている。 Specifically, as shown in FIGS. 4 and 5, a pair of the second members 5b in the column member 5 is provided, and one of the second members 5b in the pair of second members 5b and 5b is a first member. The first member 5a is drawn upward from the member 5a so as to continuously extend upward. The other second member 5b of the pair of second members 5b and 5b is drawn downward from the first member 5a so as to continuously extend downward from the first member 5a. Further, a pair of third members 5c in the support member 5 is also provided, and one third member 5c of the pair of third members 5c and 5c continuously extends upward from the one second member 5b. Thus, it is pulled out from the second member 5b. Then, the other third member 5c of the pair of third members 5c and 5c is drawn downward from the other second member 5b so as to continuously extend downward from the other second member 5b. In the illustrated embodiment, the first to third members 5a, 5b, and 5c are all formed of square pipes. And these 1st thru | or 3rd members 5a, 5b, 5c consist of aluminum materials, for example.

ここで、一対の第２部材５ｂ、５ｂは、第１部材５ａ内に収容されているとき、一方の第２部材５ｂと他方の第２部材５ｂとの基端部が、対向位置する。同様にして、一対の第３部材５ｃ、５ｃは、第１部材５ａ内に収容された第２部材５ｂ、５ｂ内に収容されているとき、一方の第３部材５ｃと他方の第３部材５ｃとの基端部が、対向位置するようになっている。 Here, when a pair of 2nd members 5b and 5b are accommodated in the 1st member 5a, the base end part of one 2nd member 5b and the other 2nd member 5b opposes. Similarly, when the pair of third members 5c and 5c is housed in the second members 5b and 5b housed in the first member 5a, one third member 5c and the other third member 5c. The base end part is opposed to each other.

また、支柱材５は、第１部材５ａから第２部材５ｂを引き出したとき、その第２部材５ｂを第１部材５ａに固定する、第１の固定手段６を備えている。具体的には、この第１の固定手段６は、図９に示すように、第１部材５ａに明けられた孔６ａと、第２部材５ｂに明けられた孔６ｂと、これらの孔６ａ、６ｂに挿入されるボルト６ｃと、そのボルト６ｃに螺合するナット６ｄとからなる。同様にして、支柱材５は、第２部材５ｂから第３部材５ｃを引き出したとき、その第３部材５ｃを第２部材５ｂに固定する、第２の固定手段を備えている。ところで、前記第１の固定手段６は、例えば、第１部材５ａの孔６ａまたは／および第２部材５ｂの孔６ｂを、第１部材５ａあるいは第２部材５ｂの長手方向に複数設けて（図示せず）、ボルト６ｃが挿入されるところの、第１部材５ａの孔６ａと第２部材５ｂの孔６ｂとを合わせるようにして、第１部材５ａからの第２部材５ｂの引き出し位置を調整して、その第２部材５ｂを第１部材５ａに固定する、第１の調整固定手段８となっている。同様にして、第２の固定手段は、第２部材５ｂからの第３部材５ｃの引き出し位置を調整して、その第３部材５ｃを第２部材５ｂに固定する、第２の調整固定手段となっている。 Moreover, the support | pillar material 5 is provided with the 1st fixing means 6 which fixes the 2nd member 5b to the 1st member 5a, when the 2nd member 5b is pulled out from the 1st member 5a. Specifically, as shown in FIG. 9, the first fixing means 6 includes a hole 6a opened in the first member 5a, a hole 6b opened in the second member 5b, and these holes 6a, It consists of a bolt 6c inserted into 6b and a nut 6d screwed into the bolt 6c. Similarly, the column member 5 includes second fixing means for fixing the third member 5c to the second member 5b when the third member 5c is pulled out from the second member 5b. By the way, the first fixing means 6 is provided with, for example, a plurality of holes 6a and / or second holes 5b of the first member 5a in the longitudinal direction of the first member 5a or the second member 5b (see FIG. (Not shown), the position where the second member 5b is pulled out from the first member 5a is adjusted by aligning the hole 6a of the first member 5a and the hole 6b of the second member 5b where the bolt 6c is inserted. Thus, the first adjusting and fixing means 8 is used to fix the second member 5b to the first member 5a. Similarly, the second fixing means adjusts the drawing position of the third member 5c from the second member 5b, and fixes the third member 5c to the second member 5b. It has become.

そして、第１部材５ａと第２部材５ｂとの間には、第２部材５ｂが第１部材５ａから抜け出るのを阻止する、第１の抜止め手段１０が設けられている。具体的には、この第１の抜止め手段１０は、図１０に示すように、第１部材５ａに溶接等により固定された取付板１０ａと、その取付板１０ａに、例えばボルト１０ｂおよびナット１０ｃを用いて着脱可能に取り付けられるストッパー部材１０ｄと、第２部材５ｂに溶接等により固定されて、前記ストッパー部材１０ｄに内側から当接する被ストッパー部材１０ｅとからなる。同様にして、第２部材５ｂと第３部材５ｃとの間には、第３部材５ｃが第２部材５ｂから抜け出るの阻止する、第２の抜止め手段が設けられている。 A first retaining means 10 is provided between the first member 5a and the second member 5b to prevent the second member 5b from coming out of the first member 5a. Specifically, as shown in FIG. 10, the first retaining means 10 includes a mounting plate 10a fixed to the first member 5a by welding or the like, and a bolt 10b and a nut 10c, for example, on the mounting plate 10a. The stopper member 10d is detachably attached using the first and second members 5b. The stopper member 10e is fixed to the second member 5b by welding or the like and is in contact with the stopper member 10d from the inside. Similarly, a second retaining means for preventing the third member 5c from coming out of the second member 5b is provided between the second member 5b and the third member 5c.

また、図６および図９に示すように、第１部材５ａには、前記複数の連結材４、４における適宜の連結材４を接続するための第１接続具１２、１２が固着されている。この第１接続具１２は、図示実施の形態においては、第１部材５ａの各端部および中間部に設けられている。そして、図７に示すように、第２部材５ｂの先端部には、前記複数の連結材４、４における適宜の連結材４（他の連結材４）を接続するための第２接続具１３が固着されている。同様に、図８および図１１に示すように、第３部材５ｃの先端部には、前記複数の連結材４、４における適宜の連結材４を接続するための第３接続具１４が固着されている。ここで、第１部材５ａの各端部に設けられた第１接続具１２、第２部材５ｂに設けられた第２接続具１３、および第３部材５ｃに設けられた第３接続具１４は、垂直板１６と水平板１７とにより構成されている。そして、第１部材５ａの中間部に設けられた第１接続具１２は、垂直板１６のみにより構成されている。そして、垂直板１６には、前記連結材４としての、横継ぎ材４ａおよび側面ブレース４ｂが接続され、水平板１７には、平面ブレース４ｃが接続される（図９参照）。 As shown in FIGS. 6 and 9, first connecting members 12, 12 for connecting appropriate connecting members 4 in the plurality of connecting members 4, 4 are fixed to the first member 5 a. . In the illustrated embodiment, the first connector 12 is provided at each end and intermediate portion of the first member 5a. And as shown in FIG. 7, the 2nd connection tool 13 for connecting the suitable connection material 4 (other connection material 4) in the said several connection materials 4 and 4 to the front-end | tip part of the 2nd member 5b. Is fixed. Similarly, as shown in FIGS. 8 and 11, a third connector 14 for connecting the appropriate connecting members 4 in the plurality of connecting members 4, 4 is fixed to the tip of the third member 5 c. ing. Here, the first connector 12 provided at each end of the first member 5a, the second connector 13 provided at the second member 5b, and the third connector 14 provided at the third member 5c are as follows. The vertical plate 16 and the horizontal plate 17 are configured. And the 1st connection tool 12 provided in the intermediate part of the 1st member 5a is comprised only by the vertical board 16. FIG. The horizontal plate 4a and the side brace 4b are connected to the vertical plate 16 as the connecting member 4, and the flat brace 4c is connected to the horizontal plate 17 (see FIG. 9).

そして、支柱材５の端部（図示実施の形態においては、第３部材５ｃの先端部）には、支柱３を構成する継足し支柱材１８を接続可能とする端部接続具１９が固着されている。ここで、この端部接続具１９の一例を、支柱材５の上端部側を例に説明すると、図１１に示すように、端部接続具１９は、第３部材５ｃの端部（上端部）に溶接等によって固着された取付板１９ａを有する。一方。継足し支柱材１８には、その端部（基端部）に、例えば、フランジ状の被取付板１９ｂと、補強板１９ｃ、１９ｃとが、例えば溶接等により固着されて、設けられている。そして、被取付板１９ｂと、取付板１９ａとが、例えばボルト１９ｄおよびナット１９ｅを用いて着脱可能に取り付けられる。こうして、継足し支柱材１８は、端部接続具１９を介して、支柱材５に接続される。 Then, an end connection tool 19 that can connect the additional support material 18 constituting the support 3 is fixed to the end of the support material 5 (in the illustrated embodiment, the tip of the third member 5c). ing. Here, an example of the end connection tool 19 will be described by taking the upper end part side of the column member 5 as an example. As shown in FIG. 11, the end connection tool 19 has an end part (upper end part) of the third member 5c. ) Has a mounting plate 19a fixed by welding or the like. on the other hand. For example, a flange-shaped attached plate 19b and reinforcing plates 19c and 19c are fixed to the end portion (base end portion) of the extension support member 18 by welding or the like. And the to-be-attached plate 19b and the attachment plate 19a are attached so that attachment or detachment is possible using the volt | bolt 19d and the nut 19e, for example. In this way, the additional support material 18 is connected to the support material 5 via the end connector 19.

また、この足場２は、図１および図２に示すように、足場２自身を移動させる移動手段２０を備えている。詳細には、この移動手段２０として、足場２の下端部分（詳細には、支柱３の下方）には、移動のための車輪２０ａ、２０ａが設けられている。さらに、移動手段２０として、前記車輪２０ａに加えて、足場２の下端部分（詳細には、支柱３の下方）には、その車輪２０ａを回転させるための原動機２０ｂが設けられている。もっとも、この原動機２０ｂは、すべての車輪２０ａ、２０ａに対応して設けられる必要はなく、図２に示すように、タンク１の周方向における中央の列の車輪２０ａに対応して設けられてもよく、また、足場２の進行方向の前側となる列の車輪２０ａ、例えば、タンク１の周方向における一方側の列の車輪２０ａに対応して設けられてもよい。 Further, as shown in FIGS. 1 and 2, the scaffold 2 includes moving means 20 for moving the scaffold 2 itself. Specifically, as the moving means 20, wheels 20 a and 20 a for movement are provided at the lower end portion of the scaffold 2 (specifically, below the support column 3). Further, as the moving means 20, in addition to the wheel 20a, a motor 20b for rotating the wheel 20a is provided at the lower end portion of the scaffold 2 (specifically, below the support column 3). However, the prime mover 20b need not be provided corresponding to all the wheels 20a, 20a, and may be provided corresponding to the wheels 20a in the center row in the circumferential direction of the tank 1, as shown in FIG. Alternatively, it may be provided corresponding to the wheel 20a in the row on the front side in the traveling direction of the scaffold 2, for example, the wheel 20a in the row on one side in the circumferential direction of the tank 1.

より詳細には、図１２ないし図１５に示すように、車輪２０ａは、リンク機構により、二つ以上が同時に、その方向を変更可能となっている。ここで、図１２は、移動手段２０を示す正面図、図１３は、その平面図、図１４は、その拡大側面図である。また、図１５は、図１３に対して、車輪の方向を９０°変更した状態を示している。すなわち、移動手段２０は、車輪２０ａおよび原動機２０ｂが備わる移動体２０ｃと、各移動体２０ｃを、ピン２０ｄ、２０ｄを介して繋げる、例えばＬ型の二本のバー材２０ｅ、２０ｅと、それら二本のバー材２０ｅ、２０ｅを相対移動させる方向変更用のジャッキ２０ｆとを備える。こうして、二本のバー材２０ｅ、２０ｅおよび移動体２０ｃ、２０ｃがリンクを構成し、ジャッキ２０ｆによって、車輪２０ａ、２０ａの方向が変更されるようになっている。そして、移動体２０ｃの上部には、この足場２のレベル出しとか高さを微調整するための調整用のジャッキ２０ｇが回動可能に取り付けられる。そこで、このジャッキ２０ｇを介して、支柱材５は、移動体２０ｃに取り付けられる。 More specifically, as shown in FIGS. 12 to 15, two or more wheels 20 a can change directions simultaneously by a link mechanism. Here, FIG. 12 is a front view showing the moving means 20, FIG. 13 is a plan view thereof, and FIG. 14 is an enlarged side view thereof. FIG. 15 shows a state in which the direction of the wheel is changed by 90 ° with respect to FIG. That is, the moving means 20 includes, for example, two L-shaped bar members 20e and 20e that connect the moving bodies 20c provided with the wheels 20a and the prime mover 20b, and the respective moving bodies 20c via the pins 20d and 20d. And a direction changing jack 20f for relatively moving the bar members 20e, 20e. Thus, the two bar members 20e, 20e and the moving bodies 20c, 20c form a link, and the direction of the wheels 20a, 20a is changed by the jack 20f. An adjustment jack 20g for finely adjusting the leveling or height of the scaffold 2 is rotatably attached to the upper portion of the moving body 20c. Therefore, the support material 5 is attached to the moving body 20c through the jack 20g.

次に、支柱材５の組立て方法について説明する。この組立て方法は、図４および図５に示すように、支柱材５の複数本を伸ばされていない状態で、少なくとも第１部材５ａ部分にて、前記連結材４を用いて連結し、それら連結された支柱材５、５を、吊り上げるようにして引き伸ばす。図示実施の形態においては、前後左右の４本の支柱材５、５を、伸ばされていない状態で、第１ないし第３部材５ａ、５ｂ、５ｃ部分にて、連結材４としての横継ぎ材４ａを用いて連結する（図４参照）。そして、これら支柱材５、５の上端に、クレーン等のフックに取り付けた吊り具２１から下がるワイヤー２１ａを繋ぎ、４本の支柱材５、５を同時に引き上げる（図５参照）。その後、支柱材５、５を、連結材４としてのブレース４ｂ、４ｃを用いてさらに連結する。 Next, a method for assembling the support member 5 will be described. As shown in FIGS. 4 and 5, this assembling method is such that a plurality of support members 5 are connected to each other at least in the first member 5 a portion using the connecting member 4 and connected. The formed support members 5 and 5 are stretched so as to be lifted. In the illustrated embodiment, the four joint members 5, 5 on the front, rear, left, and right sides are not stretched, and the first to third members 5a, 5b, 5c are used as connecting members 4. 4a is used for connection (see FIG. 4). And the wire 21a which falls from the hanger 21 attached to hooks, such as a crane, is connected to the upper end of these support | pillar materials 5 and 5, and the 4 support | pillar materials 5 and 5 are pulled up simultaneously (refer FIG. 5). Then, the support | pillar materials 5 and 5 are further connected using the braces 4b and 4c as the connection material 4. FIG.

そして、足場２の組立てにおいては、前記支柱材４の組立て方法で説明した、複数本（図示実施の形態においては４本）の支柱材５、５をユニットとして、各ユニットを連結材４を用いて連結する。そして、必要に応じて、これらユニットと、単体の伸ばされた支柱材５とを、連結材４を用いて連結する。また、必要な高さに応じて、前記支柱材５に、継足し支柱材１８を接続し、その継足し支柱材１８、１８同士とか、継足し支柱材１８と支柱材５とを、連結材４を用いて連結する。図示実施の形態においては、タンク１の径方向において、壁１ａ側の１列の支柱３は、支柱材５のみからなり、タンク１の中心１ｄに向かう２列の支柱３は、支柱材５と、継足し支柱材１８としての一本のパイプ材からなり、さらにタンク１の中心に向かう３列の支柱３は、支柱材５と、継足し支柱材１８としての２本のパイプ材からなる（図１参照）。そしてこの２本のパイプ材においても、支柱材５と同様に、一方のパイプ材から他方のパイプ材が引き出されるようになっている。こうして、タンク１の径方向には、支柱３が６列並んでいる。そして、タンク１の周方向においては、支柱３が３列並んでいる（図２参照）。なお、図中、符号２２は、梯子、２３は、階段である。２４は、作業床、２５は、手摺である。また、２６は、タンク１の壁１ａに近づくための、張出し部である。 In assembling the scaffold 2, a plurality of (four in the illustrated embodiment) support members 5, 5 described in the assembly method of the support members 4 are used as units, and each unit is used with a connecting member 4. Connect. And if necessary, these units and a single stretched support material 5 are connected using a connecting material 4. Further, according to the required height, an additional supporting column material 18 is connected to the supporting column material 5, and the additional supporting column materials 18, 18, or the additional supporting column material 18 and the supporting column material 5 are connected to each other. 4 to connect. In the illustrated embodiment, in the radial direction of the tank 1, one column of columns 3 on the wall 1 a side is composed of only the column material 5, and two columns of columns 3 toward the center 1 d of the tank 1 are The three columns of pillars 3 extending toward the center of the tank 1 are composed of the pillar material 5 and two pipe materials as the augmented pillar material 18 ( (See FIG. 1). And also in these two pipe materials, like the support | pillar material 5, the other pipe material is pulled out from one pipe material. In this way, six columns 3 are arranged in the radial direction of the tank 1. In the circumferential direction of the tank 1, three columns 3 are arranged (see FIG. 2). In the figure, reference numeral 22 is a ladder, and 23 is a staircase. Reference numeral 24 is a work floor, and 25 is a handrail. Reference numeral 26 denotes an overhang portion for approaching the wall 1 a of the tank 1.

次いで、以上の構成からなる足場２の作用効果について説明する。この足場２の支柱３を構成する支柱材５は、第２部材５ｂが、筒状に形成された第１部材５ａから引き出されることで、その第１部材５ａから連続して延び、そして、第３部材５ｃが、筒状に形成された第２部材５ｂから引き出されることで、その第２部材５ｂから連続して延びることとなる。こうして、支柱材５、ひいては支柱３は、その長さが確保される。そして、支柱３が、複数の連結材４、４によって連結されて、足場２が形成される。ここで、支柱材５は、第２部材５ｂが第１部材５ａ内から引き出される前であって、第３部材５ｃが第２部材５ｂ内から引き出される前においては、すなわち、支柱材５が伸ばされる前においては、第２部材５ｂが、第１部材５ａ内に収容され、そして、第３部材５ｃが、第２部材５ｂ内に収容されており、コンパクト化されている。こうして、支柱材５がコンパクト化されることで、支柱材５、ひいては解体された足場２の、運搬等の取扱いが容易となる。そして、第２部材５ｂを第１部材５ａ内から引き出し、そして、第３部材５ｃを第２部材５ｂ内から引き出すことで、すなわち、支柱材５を伸ばすことで、この支柱材５を組み立てることができ、この支柱材５ひいては足場２の組立てを簡単に行うことができる。特に、支柱材５の組立てにあたって、連結材４を用いて連結された複数本の支柱材５、５を吊り上げるようにして引き伸ばすことで、複数本の支柱材５、５をまとめて組み立てることができ、この支柱材５、５、ひいては足場２は、一層簡単に組み立てられる。 Next, the function and effect of the scaffold 2 having the above configuration will be described. The column material 5 constituting the column 3 of the scaffold 2 extends continuously from the first member 5a when the second member 5b is pulled out from the first member 5a formed in a cylindrical shape, The three members 5c are continuously extended from the second member 5b by being pulled out from the second member 5b formed in a cylindrical shape. In this way, the length of the support material 5 and by extension the support material 3 is ensured. And the support | pillar 3 is connected by the some connection material 4 and 4, and the scaffold 2 is formed. Here, the column member 5 is before the second member 5b is pulled out from the first member 5a and before the third member 5c is pulled out from the second member 5b, that is, the column member 5 is stretched. Before the second member 5b, the second member 5b is accommodated in the first member 5a, and the third member 5c is accommodated in the second member 5b. In this way, the column material 5 is made compact, so that the column material 5 and eventually the disassembled scaffold 2 can be handled easily. Then, the column member 5 can be assembled by pulling out the second member 5b from the first member 5a and pulling out the third member 5c from the second member 5b, that is, by extending the column member 5. It is possible to assemble the support material 5 and the scaffold 2 easily. In particular, when assembling the supporting members 5, the plurality of supporting members 5, 5 can be assembled together by lifting and stretching the supporting members 5, 5 connected using the connecting member 4. The support members 5 and 5 and the scaffold 2 can be assembled more easily.

また、このとき、支柱材５における第２部材５ｂは、一対設けられ、それら第２部材５ｂ、５ｂが、第１部材５ａに対して上方と下方のそれぞれに引き出される。同様に、第３部材５ｃは、一対設けられ、それら第３部材５ｃ、５ｃが、第２部材５ｂ、５ｂに対して上方と下方のそれぞれに引き出される。こうして、第２部材５ｂ、５ｂおよび第３部材５ｃ、５ｃが、上方と下方のそれぞれに引き出されることで、上方あるいは下方の一方のみに引き出される場合と比較して、第２部材５ｂおよび第３部材５ｃの長さを短くすることができ、この支柱材５の耐力は高くなる。 At this time, a pair of second members 5b in the column member 5 are provided, and the second members 5b and 5b are drawn upward and downward with respect to the first member 5a. Similarly, a pair of third members 5c are provided, and the third members 5c and 5c are drawn upward and downward with respect to the second members 5b and 5b, respectively. Thus, the second member 5b and the third member 5c and 5c are pulled out upward and downward, respectively, so that the second member 5b and the third member 5b and the third member are pulled out only upward or downward. The length of the member 5c can be shortened, and the proof strength of the column member 5 is increased.

また、支柱材５は、第１の調整固定手段８および第２の調整固定手段により、第２部材５ｂが、第１部材５ａからの引き出し位置が調整され、そして、第３部材５ｃが、第２部材５ｂからの引き出し位置が調整される。こうして、支柱材５の高さ寸法が調整され、足場２の高さを状況に応じて調整することができる。しかも、支柱材５の端部に設けられた端部接続具１９を介して、支柱材５に継足し支柱材１８を接続することで、支柱３を、支柱材５以上に長くすることができる。こうして、第１の調整固定手段８と第２の調整固定手段の他に、状況に応じて支柱材５に継足し支柱材１８を接続することで、足場２の高さ調整の幅を増すことができる。 In addition, the column member 5 is adjusted by the first adjustment fixing means 8 and the second adjustment fixing means so that the second member 5b is adjusted in the drawing position from the first member 5a, and the third member 5c is The drawing position from the two members 5b is adjusted. Thus, the height dimension of the support material 5 is adjusted, and the height of the scaffold 2 can be adjusted according to the situation. In addition, the column 3 can be made longer than the column material 5 by connecting to the column material 5 and connecting the column material 18 via the end connector 19 provided at the end of the column material 5. . In this way, in addition to the first adjustment fixing means 8 and the second adjustment fixing means, the height adjustment width of the scaffold 2 is increased by connecting the support material 18 to the support material 5 according to the situation. Can do.

また、支柱材５は、第１の抜止め手段１０および第２の抜止め手段により、第２部材５ｂが、第１部材５ａから抜け出るのが阻止され、そして、第３部材５ｃが、第２部材５ｂから抜け出るのが阻止される。したがって、第１部材５ａと第２部材５ｂとが分離することはなく、また、第２部材５ｂと第３部材５ｃとが分離することはなく、取扱いが一層容易となる。さらに、第１部材５ａおよび第２部材５ｂ、そして第３部材５ｃに、連結材４を接続するところの、第１接続具１２および第２接続具１３、そして第３接続具１４を設けることで、支柱材５、５、ひいては支柱３、３は、容易に連結される。 Further, the column member 5 is prevented from being pulled out of the first member 5a by the first retaining means 10 and the second retaining means, and the third member 5c is The escape from the member 5b is prevented. Therefore, the 1st member 5a and the 2nd member 5b do not separate, and the 2nd member 5b and the 3rd member 5c do not separate, and handling becomes still easier. Furthermore, by providing the 1st connection tool 12, the 2nd connection tool 13, and the 3rd connection tool 14 which connect the connection material 4 to the 1st member 5a, the 2nd member 5b, and the 3rd member 5c. The support members 5, 5 and thus the support members 3, 3 are easily connected.

また、足場２に備わる車輪２０ａを回転させて、足場２を移動させることで、順次作業を行うことができるので、小規模の足場２で対応することが可能となる。しかも、車輪２０ａは、原動機２０ｂによって回転するため、足場２を容易に移動させることができる。その上、車輪２０ａの方向は、リンク機構という簡単な構造で変更される。このように、この車輪２０ａの方向が変更されることで、足場２を所要の方向に簡単に移動させることができる。図示実施の形態においては、足場２は、タンク１の径方向における半径部分をカバーするように配置されている。そして、この足場２を、タンク１の周方向に順次移動させることで、タンク１全体の作業を行うことができる。 Further, since the work can be sequentially performed by rotating the wheel 20a provided in the scaffold 2 and moving the scaffold 2, it is possible to cope with the small-scale scaffold 2. Moreover, since the wheel 20a is rotated by the prime mover 20b, the scaffold 2 can be easily moved. In addition, the direction of the wheel 20a is changed with a simple structure called a link mechanism. Thus, the scaffold 2 can be easily moved in a required direction by changing the direction of the wheel 20a. In the illustrated embodiment, the scaffold 2 is arranged so as to cover a radial portion of the tank 1 in the radial direction. And the work of the whole tank 1 can be performed by moving this scaffold 2 sequentially in the circumferential direction of the tank 1.

なお、本発明は、上述した実施の形態に限定されるわけではなく、その他種々の変更が可能である。例えば、支柱材５は、第１部材５ａの他に、第２部材５ｂと第３部材５ｃとが、それぞれ一対設けられて、それらが上方と下方とに引き出されるが、第２部材５ｂと第３部材５ｃとが、それぞれ一つ設けられて、上方または下方の一方にのみ引き出されてもよい。また、このように、支柱材５は、第１部材５ａと第２部材５ｂと第３部材５ｃとを備えて、伸縮可能に形成されているが、第３部材５ｃを備えることなく、第１部材５ａと第２部材５ｂとで伸縮可能に形成されてもよい。また、反対に、支柱材５は、第１ないし第３部材５ａ、５ｂ、５ｃに加えて、第３部材５ｃからさらに連続して延びるようにその第３部材５ｃ内から引き出される第４部材等を備えて、伸縮可能に形成されてもよい。 In addition, this invention is not necessarily limited to embodiment mentioned above, A various other change is possible. For example, the column member 5 is provided with a pair of a second member 5b and a third member 5c in addition to the first member 5a, which are drawn out upward and downward. Each of the three members 5c may be provided and pulled out only to one of the upper side and the lower side. As described above, the support member 5 includes the first member 5a, the second member 5b, and the third member 5c, and is formed to be extendable / contractable. The member 5a and the second member 5b may be formed to be stretchable. On the other hand, in addition to the first to third members 5a, 5b, and 5c, the column member 5 is a fourth member that is pulled out from the third member 5c so as to extend further continuously from the third member 5c. And may be formed to be stretchable.

また、足場２の移動手段２０として、車輪２０ａと原動機２０ｂとが設けられているが、車輪２０ａのみで原動機２０ｂが設けられなくともよい。さらには、足場２に移動手段２０が設けられることなく、固定式の足場であってもよい。また、車輪２０ａは、底版１ｃの上に、直接載せられなくとも、例えば、底版１ｃの上に、レールを載せ、そのレール上を、車輪２０ａが回転して移動するようにしてもよい。 Moreover, although the wheel 20a and the motor | power_engine 20b are provided as the moving means 20 of the scaffold 2, the motor | power_engine 20b does not need to be provided only by the wheel 20a. Further, the scaffold 2 may be a fixed scaffold without the moving means 20 being provided. Further, even if the wheel 20a is not directly placed on the bottom plate 1c, for example, a rail may be placed on the bottom plate 1c, and the wheel 20a may rotate and move on the rail.

また、この足場２は、タンク１の内側の工事に使用されるものでなくとも、外側の工事に使用されるものであってもよい。さらに、足場２は、タンク１の改修工事とか補修工事に用いられるものでなくとも、タンク１の建設に用いられるものであってもよい。そして、構造物は、タンク１に限定されることはなく、橋、建物等、その他の構造物であってもよい。 Further, the scaffold 2 may be used not only for the construction inside the tank 1 but also for the outside construction. Furthermore, the scaffold 2 may be used for construction of the tank 1, even if it is not used for repair work or repair work of the tank 1. And a structure is not limited to the tank 1, Other structures, such as a bridge and a building, may be sufficient.

この発明の一実施の形態の、正面図である。It is a front view of one embodiment of this invention. 同じく、拡大側面図である。Similarly, it is an enlarged side view. 同じく、拡大平面図である。Similarly, it is an enlarged plan view. 同じく、伸ばされる前の支柱材を示す正面図である。Similarly, it is a front view which shows the support | pillar material before being extended. 同じく、伸ばされた後の支柱材を示す正面図である。Similarly, it is a front view showing the strut material after being stretched. 同じく、第１部材を示す図であって、（イ）は、正面図、（ロ）は、側面図である。Similarly, it is a figure which shows the 1st member, Comprising: (A) is a front view, (B) is a side view. 同じく、第２部材を示す図であって、（イ）は、正面図、（ロ）は、側面図である。Similarly, it is a figure which shows a 2nd member, Comprising: (A) is a front view, (B) is a side view. 同じく、第３部材を示す図であって、（イ）は、正面図、（ロ）は、側面図である。Similarly, it is a figure which shows a 3rd member, Comprising: (A) is a front view, (B) is a side view. 同じく、第１部材と第２部材との接続部分を示す正面図である。Similarly, it is a front view which shows the connection part of a 1st member and a 2nd member. 同じく、第１部材と第２部材との接続部分を示す縦断面図である。Similarly, it is a longitudinal cross-sectional view which shows the connection part of a 1st member and a 2nd member. 同じく、支柱材と継足し支柱材との接続部分を示す正面図である。Similarly, it is a front view showing a connecting portion between the support material and the support material. 同じく、移動手段を示す正面図である。Similarly, it is a front view which shows a moving means. 同じく、移動手段を示す平面図である。Similarly, it is a top view which shows a moving means. 同じく、移動手段を示す拡大側面図である。Similarly, it is an enlarged side view showing a moving means. 同じく、移動手段における車輪の方向を９０°変更した状態を示す平面図である。Similarly, it is a top view which shows the state which changed the direction of the wheel in a moving means 90 degrees.

符号の説明Explanation of symbols

２足場
３支柱
４連結材
５支柱材
５ａ第１部材
５ｂ第２部材
５ｃ第３部材
８第１の調整固定手段（調整固定手段）
１０第１の抜止め手段（抜止め手段）
１２第１接続具
１３第２接続具
１８継足し支柱材
１９端部接続具
２０ａ車輪
２０ｂ原動機 2 Scaffolding 3 Struts 4 Connecting materials 5 Strut materials 5a First member 5b Second member 5c Third member 8 First adjustment fixing means (adjustment fixing means)
10 First retaining means (preventing means)
12 1st connection tool 13 2nd connection tool 18 Additional support material 19 End connection tool 20a Wheel 20b Prime mover

Claims

複数の支柱と、それら支柱を連結する複数の連結材とを備える足場であって、
前記支柱を構成する支柱材は、筒状に形成された第１部材と、その第１部材から連続して延びるようにその第１部材内から引き出される第２部材とを備えて、伸縮可能に形成されていることを特徴とする足場。 A scaffold comprising a plurality of struts and a plurality of connecting members for connecting the struts
The column material constituting the column includes a first member formed in a cylindrical shape, and a second member drawn out from the first member so as to continuously extend from the first member, and can be expanded and contracted. A scaffold characterized by being formed.

前記支柱材における前記第２部材は、一対設けられており、その一対の第２部材における一方の第２部材は、前記第１部材から上方に連続して延びるようにその第１部材内から上方に引き出され、そして、前記一対の第２部材における他方の第２部材は、前記第１部材から下方に連続して延びるようにその第１部材内から下方に引き出されることを特徴とする請求項１に記載の足場。 A pair of the second members in the support material is provided, and one second member of the pair of second members is upward from the first member so as to continuously extend upward from the first member. The other second member of the pair of second members is drawn downward from the first member so as to continuously extend downward from the first member. The scaffold according to 1.

前記一対の第２部材は、前記第１部材内に収容されているとき、前記一方の第２部材と前記他方の第２部材との基端部が、対向位置することを特徴とする請求項２に記載の足場。 The pair of second members are characterized in that, when housed in the first member, base end portions of the one second member and the other second member are opposed to each other. The scaffold according to 2.

前記支柱材は、前記第１部材からの前記第２部材の引き出し位置を調整して、その第２部材を前記第１部材に固定する、調整固定手段を備えることを特徴とする請求項１ないし３のいずれか１項に記載の足場。 The said support | pillar material is equipped with the adjustment fixing means which adjusts the drawing position of the said 2nd member from the said 1st member, and fixes the 2nd member to the said 1st member. The scaffold according to any one of 3 above.

前記第１部材と前記第２部材との間には、前記第２部材が前記第１部材から抜け出るのを阻止する、抜止め手段が設けられていることを特徴とする請求項１ないし４のいずれか１項に記載の足場。 5. A retaining means for preventing the second member from coming out of the first member is provided between the first member and the second member. The scaffold according to any one of the above.

前記第１部材には、前記複数の連結材における適宜の連結材を接続するための第１接続具が設けられており、
前記第２部材の先端部には、前記複数の連結材における適宜の連結材を接続するための第２接続具が設けられていることを特徴とする請求項１ないし５のいずれか１項に記載の足場。 The first member is provided with a first connector for connecting an appropriate connecting member in the plurality of connecting members,
6. The device according to claim 1, wherein a second connector for connecting an appropriate connecting member of the plurality of connecting members is provided at a distal end portion of the second member. Scaffolding as described.

前記一対の第２部材は、筒状に形成されており、
前記支柱材は、一対の第３部材を備え、その一対の第３部材における一方の第３部材は、前記一方の第２部材から上方に連続して延びるようにその一方の第２部材内から上方に引き出され、そして、前記一対の第３部材における他方の第３部材は、前記他方の第２部材から下方に連続して延びるようにその他方の第２部材内から下方に引き出されることを特徴とする請求項２に記載の足場。 The pair of second members are formed in a cylindrical shape,
The strut member includes a pair of third members, and one third member of the pair of third members extends from within the one second member so as to continuously extend upward from the one second member. The other third member of the pair of third members is drawn downward from the other second member so as to continuously extend downward from the other second member. The scaffold according to claim 2, wherein the scaffold is characterized.

前記一対の第２部材は、前記第１部材内に収容されているとき、前記一方の第２部材と前記他方の第２部材との基端部が、対向位置し、
前記一対の第３部材は、前記第１部材内に収容された前記第２部材内に収容されているとき、前記一方の第３部材と前記他方の第３部材との基端部が、対向位置することを特徴とする請求項７に記載の足場。 When the pair of second members are housed in the first member, base end portions of the one second member and the other second member are opposed to each other,
When the pair of third members are housed in the second member housed in the first member, the base ends of the one third member and the other third member are opposed to each other. The scaffold according to claim 7, wherein the scaffold is located.

前記支柱材の端部には、前記支柱を構成する継足し支柱材を接続可能とする端部接続具が設けられていることを特徴とする請求項１ないし８のいずれか１項に記載の足場。 The end part of the said support | pillar material is provided with the edge part connection tool which can connect the extension support | pillar material which comprises the said support | pillar, It is any one of Claim 1 thru | or 8 characterized by the above-mentioned. scaffold.

前記足場の下端部分には、移動のための複数の車輪と、その車輪を回転させるための原動機とが設けられていることを特徴とする請求項１ないし９のいずれか１項に記載の足場。 The scaffold according to any one of claims 1 to 9, wherein a lower end portion of the scaffold is provided with a plurality of wheels for movement and a prime mover for rotating the wheels. .

前記車輪は、リンク機構により、二つ以上が同時に、その方向を変更可能となっていることを特徴とする請求項１０に記載の足場。 11. The scaffold according to claim 10, wherein two or more of the wheels can change directions simultaneously by a link mechanism.

足場の支柱を構成する支柱材であって、
筒状に形成された第１部材と、一対の第２部材とを備え、
前記一対の第２部材における一方の第２部材は、前記第１部材から上方に連続して延びるようにその第１部材内から上方に引き出され、そして、前記一対の第２部材における他方の第２部材は、前記第１部材から下方に連続して延びるようにその第１部材内から下方に引き出されることを特徴とする、足場に用いられる支柱材。 A strut material constituting the strut of the scaffold,
A first member formed in a cylindrical shape and a pair of second members;
One second member of the pair of second members is drawn upward from the first member so as to continuously extend upward from the first member, and the other second member of the pair of second members is The two members are drawn downward from the first member so as to continuously extend downward from the first member, and the support member used for the scaffolding.

前記第１部材の端部には、前記支柱と他の支柱とを連結する連結材を接続するための第１接続具が設けられており、
前記第２部材の先端部には、前記支柱と他の支柱とを連結する他の連結材を接続するための第２接続具が設けられていることを特徴とする請求項１２に記載の、足場に用いられる支柱材。 At the end of the first member, a first connector for connecting a connecting material for connecting the support column and another support column is provided,
The tip of the second member is provided with a second connector for connecting another connecting material for connecting the support post and another support post, according to claim 12, Support material used for scaffolding.

前記一対の第２部材は、筒状に形成されており、
一対の第３部材を備え、その一対の第３部材における一方の第３部材は、前記一方の第２部材から上方に連続して延びるようにその一方の第２部材内から上方に引き出され、そして、前記一対の第３部材における他方の第３部材は、前記他方の第２部材から下方に連続して延びるようにその他方の第２部材内から下方に引き出されることを特徴とする請求項１２に記載の、足場に用いられる支柱材。 The pair of second members are formed in a cylindrical shape,
A pair of third members, and one third member of the pair of third members is drawn upward from the one second member so as to continuously extend upward from the one second member; The other third member of the pair of third members is drawn downward from the other second member so as to continuously extend downward from the other second member. The support | pillar material used for the scaffold of 12.

前記支柱の下方には、移動のための車輪が設けられることを特徴とする請求項１２ないし１４のいずれか１項に記載の、足場に用いられる支柱材。 The support | pillar material used for a scaffold as described in any one of Claim 12 thru | or 14 by which the wheel for a movement is provided under the said support | pillar.

請求項１ないし１１のいずれか１項に記載の足場における、支柱材の組立て方法であって、
前記支柱材の複数本を伸ばされていない状態で、少なくとも前記第１部材部分にて、前記連結材を用いて連結し、それら連結された支柱材を、吊り上げるようにして引き伸ばすことを特徴とする、足場における支柱材の組立て方法。 A method for assembling a strut material in the scaffold according to any one of claims 1 to 11,
In a state where a plurality of the support members are not stretched, at least the first member portion is connected using the connecting member, and the connected support members are stretched so as to be lifted. , How to assemble the strut material in the scaffold.