JP2890208B2 - Bridge scaffolding equipment - Google Patents

Bridge scaffolding equipment

Info

Publication number
JP2890208B2
JP2890208B2 JP22767590A JP22767590A JP2890208B2 JP 2890208 B2 JP2890208 B2 JP 2890208B2 JP 22767590 A JP22767590 A JP 22767590A JP 22767590 A JP22767590 A JP 22767590A JP 2890208 B2 JP2890208 B2 JP 2890208B2
Authority
JP
Japan
Prior art keywords
bridge
scaffold
traveling
right direction
girder
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
Application number
JP22767590A
Other languages
Japanese (ja)
Other versions
JPH04108905A (en
Inventor
忠彦 田原
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsui Miike Engineering Corp
Original Assignee
Mitsui Miike Engineering Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Mitsui Miike Engineering Corp filed Critical Mitsui Miike Engineering Corp
Priority to JP22767590A priority Critical patent/JP2890208B2/en
Publication of JPH04108905A publication Critical patent/JPH04108905A/en
Application granted granted Critical
Publication of JP2890208B2 publication Critical patent/JP2890208B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Landscapes

  • Bridges Or Land Bridges (AREA)

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、主として橋梁下面の点検ならびに補修をす
るための足場装置に関するものであり、殊に、例えば断
面I形の鋼材などからなる桁部材の下端フランジに懸吊
されて長さ方向に走行可能な足場装置に関するものであ
る。
Description: FIELD OF THE INVENTION The present invention relates to a scaffolding device mainly for inspecting and repairing a lower surface of a bridge, and in particular, a girder member made of, for example, a steel material having an I-shaped cross section. The present invention relates to a scaffolding device which is suspended from a lower end flange of the scaffold and can run in a longitudinal direction.

[従来の技術] 近頃、長大な橋梁が多く構築され、それらの下面など
の点検、補修を効率よくするため橋梁に沿って長手方向
へ移動が可能な足場装置を設置することがあり、そのた
めの作業車として第8図に示すものが知られている。
[Related Art] Recently, many long bridges have been constructed, and scaffolding devices that can move in the longitudinal direction along the bridges may be installed in order to efficiently inspect and repair the underside of the bridges. The work vehicle shown in FIG. 8 is known.

即ち、この橋梁用足場装置は、橋脚に架設されている
左右方向に並んだ例えば断面I形の鋼材からなる複数の
桁部材1aの内の一対の桁部材11a,12aにそれぞれ懸架さ
れる適宜長さの一対の移動レール2a,2aと、この移動レ
ール2a,2aに嵌装支持されて走行可能なハンガ3a,3aと、
これらのハンガ3a,3aの下端に左右両端部を支持された
足場4aとを具えている。そして、移動レール2a,2aおよ
びハンガ3a,3aの上方に突設された開閉可能なクランプ5
a,6aを桁部材11a,12aの下端に形成されているフランジ
部11b,12bに支持させて橋梁に懸吊させるものである。
そして、第9図に示すようにクランプ5a,6aを交互に開
閉して移動レール2a,2aおよびハンガ3a,3aを交互に移動
させることにより、足場装置4aを橋梁7aに沿ってその長
手方向へ移動させるものである。
That is, this bridge scaffolding device has an appropriate length suspended on a pair of girder members 11a and 12a of a plurality of girder members 1a made of, for example, a steel member having an I-shaped cross section and arranged side by side on a pier. A pair of moving rails 2a, 2a, and hangers 3a, 3a that can be fitted and supported by the moving rails 2a, 2a and run.
At the lower ends of these hangers 3a, 3a are provided scaffoldings 4a whose left and right ends are supported. An openable and closable clamp 5 protrudes above the moving rails 2a, 2a and the hangers 3a, 3a.
a, 6a are supported by flanges 11b, 12b formed at the lower ends of the girder members 11a, 12a, and are suspended from the bridge.
Then, as shown in FIG. 9, the clamps 5a, 6a are alternately opened and closed to move the moving rails 2a, 2a and the hangers 3a, 3a alternately, thereby moving the scaffolding device 4a in the longitudinal direction along the bridge 7a. It is something to move.

かかる橋梁用足場装置はフランジ部11b,12bを掴むク
ランプ5a,6aの内、開放したものを移動させる構成であ
るため例えばフランジ部11b,12bにボルト頭などの突起
物があっても支障なく移動することができるものであ
る。
Since such a bridge scaffolding device is configured to move an open one of the clamps 5a and 6a that grip the flange portions 11b and 12b, the bridge scaffolding device can be moved without trouble even if there is a protrusion such as a bolt head in the flange portions 11b and 12b. Is what you can do.

[発明が解決しようとする課題] ところが、前記従来の橋梁用足場装置は、移動レール
2a,2aおよびハンガ3a,3aの左右間隔が懸吊支持される桁
部材11a,12aの間隔に等しく形成されており、不変であ
る。
[Problems to be Solved by the Invention] However, the conventional bridge scaffolding device has a moving rail.
The left-right distance between 2a, 2a and the hangers 3a, 3a is formed equal to the distance between the suspended beam members 11a, 12a, and is unchanged.

従って、桁部材11a,12aの幅、即ち橋梁7a幅が変化す
る場合には移動ができず、一定幅の橋梁にしか使用する
ことができないという問題がある。
Therefore, when the width of the girder members 11a and 12a, that is, the width of the bridge 7a changes, there is a problem that it cannot be moved and can be used only for a bridge having a fixed width.

本発明は斯る実情に鑑みてなされたものであって、桁
部材の下端フランジ部にボルト頭などの障害物が突出し
ていても移動が可能であることは勿論のこと、橋梁の幅
が変化する場合にも使用可能である足場装置を提供する
ことを目的とするものである。
The present invention has been made in view of such circumstances, and it is possible to move even if an obstacle such as a bolt head is protruding from the lower end flange portion of the girder member, and the width of the bridge is changed. It is an object of the present invention to provide a scaffolding device that can be used even when performing a scaffolding.

[課題を解決するための手段] 前記課題を解決するための第一の発明は、橋梁の左右
方向へ伸縮可能な足場の左右両部端を橋脚に架設された
左右一対の桁部材にそれぞれ懸吊させた支持機構が少な
くとも三組ずつ前後へ並んで設けられており、前記各支
持機構は前記一対の桁部材の各側面にそれぞれ接するサ
イドローラと桁部材の下端フランジ面を走行する走行車
輪とを有する走行装置を具えており、前記各走行装置は
それぞれ独立して作動して前記各走行車輪を前記フラン
ジ面から浮上させる待避機構を具えている構成、更には
足場が内側フレームと外側フレームとからなり、且つこ
の両フレームはそれぞれに設けられたサイドローラが桁
部材の側面に接する方向へ付勢されて互いに左右方向へ
伸縮可能に結合されている構成である。また、第二の発
明は左右方向へ並んで橋脚に架設された複数の桁部材の
内で両外側の各一対に対向して配置された左右方向へ伸
縮可能な少なくとも三組ずつ前後に並べた支持機構によ
り懸吊して長手方向へ走行可能とした左右一対の走行部
と、左右方向の長さが橋梁とほぼ同幅で左右方向へ伸縮
可能な足場と、前記一対の走行部と前記足場の左右両端
部とを連結したる吊下げ部材とからなり、前記各支持機
構は前記各一対の桁部材の各側面にそれぞれ接するサイ
ドローラと桁部材の下端フランジ面を走行する走行車輪
とを有する走行装置を具えており、前記各走行装置はそ
れぞれ独立して作動して前記各走行車輪を前記フランジ
面から浮上させる待避機構を具えている構成、更に、各
支持機構が内側フレームと外側フレームとからなり、且
つこの両フレームはそれぞれに設けられたサイドローラ
が桁部材の側面に接する方向へ付勢されて互いに左右方
向伸縮可能に結合されている構成を有している。
[Means for Solving the Problems] A first invention for solving the above problems is to suspend both left and right ends of a scaffold capable of expanding and contracting in the left and right direction of a bridge to a pair of left and right girder members installed on a pier. At least three sets of suspended support mechanisms are provided side by side in the front-rear direction, and each of the support mechanisms is provided with a side roller contacting each side surface of the pair of girder members and a traveling wheel traveling on a lower flange surface of the girder member. A traveling device having a retracting mechanism that operates independently of each other to lift the traveling wheels from the flange surface, and furthermore, the scaffold has an inner frame and an outer frame. The two frames are configured such that side rollers provided on the respective frames are urged in a direction in contact with the side surface of the spar member and are connected to each other so as to be able to expand and contract in the left-right direction. Further, in the second invention, at least three sets of left and right expandable and contractible in the left and right direction which are arranged opposite to each pair of both outer sides among a plurality of girder members laid on the pier side by side in the left and right direction. A pair of right and left running portions suspended by a support mechanism and capable of running in the longitudinal direction, a scaffold that has a length in the left and right direction that is substantially the same width as the bridge, and that can expand and contract in the left and right direction, and the pair of running portions and the scaffold And each of the support mechanisms has a side roller contacting each side surface of each of the pair of spar members and a traveling wheel that runs on a lower end flange surface of the spar member. A configuration in which each of the traveling devices is provided with a retracting mechanism that operates independently of each other to lift each of the traveling wheels from the flange surface, and furthermore, each of the support mechanisms has an inner frame and an outer frame. Consisting of Both frame side rollers provided on each of which is biased in a direction in contact with the side surfaces of the beam member has a configuration that is the horizontal direction telescopically coupled to each other.

[作用] 一対の支持機構群を懸吊している桁部材の間隔の変化
に応じて支持機構に吊設されている足場の幅を変化させ
る。また、走行車輪が走行するフランジ面に障害物があ
る場合には、走行車輪をフランジ面から浮上させて障害
物を通過させる。このとき、足場は残りの支持機構によ
り懸吊支持される。
[Operation] The width of the scaffold suspended from the support mechanism is changed in accordance with a change in the interval between the beam members suspending the pair of support mechanisms. If there is an obstacle on the flange surface on which the traveling wheel travels, the traveling wheel is lifted from the flange surface to pass the obstacle. At this time, the scaffold is suspended and supported by the remaining support mechanism.

[実施例] 次に本発明の実施例を図面を参照して説明する。Example Next, an example of the present invention will be described with reference to the drawings.

第1図乃至第4図は第一発明の一実施例を示すもので
あり、下端を橋梁の左右方向へ伸縮可能な足場1の左右
両端部にそれぞれ連結しているとともに左右方向に並ん
で橋脚2に架設された断面I形の四本の桁部材3の内、
一側方に位置する一対の桁部材31,32にそれぞれ懸吊さ
れる支持機構41,42が三組ずつ前後へ並んで設けられて
いる。外側の支持機構41は足場1の外側フレーム11を固
定節とする平行クランク機構43と、その対角線に配した
それぞれ独立して作動する油圧シリンダからなる駆動部
44から構成される待避機構45を有し、その内側のクラン
クを形成するリンク46と水平リンク47との連結部に走行
装置5が配置されている。この走行装置5は桁部材31の
桁部材31の外側面に接するサイドローラ61と、桁部材31
の下端のフランジ部34の上面を走行する走行車輪51なら
びにこの走行車輪51と、この走行車輪51を回転させるた
めの原動機や減速機などから駆動部52とからなり、待避
機構45の作動により走行車輪51をフランジ部34の上面か
ら浮上する構成である。一方、内側の桁部材32側の支持
機構42は足場1の内側フレームに立設した基台36ならび
にターンバックル37を介して支持された桁部材32の外側
面35に接するサイドローラ62を有している。
FIGS. 1 to 4 show an embodiment of the first invention, in which the lower ends are respectively connected to the left and right ends of a scaffold 1 capable of expanding and contracting in the left-right direction of the bridge, and the piers are arranged side by side in the left-right direction. 2 of the four girder members 3 having an I-shaped cross section,
Three sets of support mechanisms 41 and 42 respectively suspended from a pair of spar members 31 and 32 located on one side are provided side by side. The outer support mechanism 41 is a drive unit including a parallel crank mechanism 43 having the outer frame 11 of the scaffold 1 as a fixed node, and independently operating hydraulic cylinders arranged diagonally to each other.
The traveling device 5 is disposed at a connecting portion between a horizontal link 47 and a link 46 forming a crank inside the retracting mechanism 45 composed of the retracting mechanism 44. The traveling device 5 includes a side roller 61 in contact with the outer surface of the spar member 31 of the spar member 31, and a spar member 31.
The traveling wheel 51 travels on the upper surface of the flange portion 34 at the lower end of the traveling wheel 51 and the traveling wheel 51, and the driving unit 52 includes a motor and a reduction gear for rotating the traveling wheel 51, and travels by the operation of the evacuation mechanism 45. The configuration is such that the wheel 51 floats from the upper surface of the flange portion 34. On the other hand, the support mechanism 42 on the side of the inner girder member 32 has a base 36 erected on the inner frame of the scaffold 1 and side rollers 62 in contact with the outer side surface 35 of the girder member 32 supported via a turnbuckle 37. ing.

また、足場1は互いに左右方向へ伸縮可能に嵌装され
た外側フレーム11と内側フレーム12とからなり、両フレ
ーム11,12は引張りばね71により互いに収縮方向へ付勢
されており、この付勢力により両サイドローラ61,62が
桁部材31,32の反対側面にそれぞれ圧接している。引張
りばね71は一端を外側フレーム12に固定しもう一端を内
側フレーム11に見えた巻上げ装置72に巻付けた索条73の
繰出し長を調節することにより引張り強さを調節するこ
とができるようになっている。また、外側フレーム11に
設けた固定滑車81および内側フレーム12に設けた動滑車
82からなる滑車装置8が設けられており、この滑車装置
8に巻掛けて一端を外側フレーム12に固定した索条83の
もう一端を巻上げ装置84に巻付けることによりサイドロ
ーラ61,62の間隔の広がりに追従して両フレーム11,12を
延伸させることができ、桁部材31,32の間隔に応じて足
場1の幅方向長さを調節することができるものである。
Further, the scaffold 1 is composed of an outer frame 11 and an inner frame 12 fitted so as to be able to expand and contract in the left-right direction, and both frames 11, 12 are urged in a contracting direction by a tension spring 71. As a result, both side rollers 61 and 62 are pressed against the opposite side surfaces of the beam members 31 and 32, respectively. The tension spring 71 has one end fixed to the outer frame 12 and the other end so that the tension strength can be adjusted by adjusting the extension length of the rope 73 wound around the hoisting device 72 visible to the inner frame 11. Has become. Also, a fixed pulley 81 provided on the outer frame 11 and a moving pulley provided on the inner frame 12
A pulley device 8 consisting of 82 is provided, and the other end of a cable 83 having one end fixed to the outer frame 12 and wound around the pulley device 8 is wound around a hoisting device 84, thereby forming a gap between the side rollers 61 and 62. The two frames 11, 12 can be extended following the expansion of the scaffold, and the length in the width direction of the scaffold 1 can be adjusted according to the interval between the beam members 31, 32.

かかる構成を有する実施例は、通常は三組の各支持機
構41,42をそれぞれのサイドローラ61,62を一対の桁部材
31,32の互いの外側方の側面にそれぞれ圧接させるとと
もに走行車輪51を桁部材31のフランジ部34上面に載せた
状態で桁部材31,32に支持懸吊され、各走行装置5の走
行車輪51をそれぞれの駆動部52により同一の方向ならび
に速度で回転させ、或いは、それらの内の一つの駆動部
52だけを稼働させることにより足場1を橋梁の所望の点
検、補修位置へ移動させるものである。そして、移動中
に桁部材31,32の間隔が変化した場合にも支障なく移動
することができる。即ち、足場1を構成する両フレーム
11,12は引張りばね71により互いに接近する方向へ付勢
されているため両桁部材31,32が接近する場合には巻上
げ装置84を駆動させて滑車装置8の索条83を必要なだけ
巻込んで動滑車82を接近させればよく、また、両桁部材
31,32の間隔が拡がる場合には両索条73,83を巻上げ装置
72,84から繰出して引張りばね71を適正張力に維持しな
がら両フレーム11,12を間隔の拡がり分だけ伸延させれ
ばよい。
In the embodiment having such a configuration, usually, three sets of each support mechanism 41, 42 are connected to the respective side rollers 61, 62 by a pair of spar members.
The running wheels 51 are supported by the beam members 31 and 32 with the running wheels 51 placed on the upper surfaces of the flange portions 34 of the beam members 31, respectively. 51 is driven in the same direction and speed by each drive 52, or one of them is driven
By operating only 52, the scaffold 1 is moved to a desired inspection and repair position of the bridge. And even if the space | interval of the girder members 31 and 32 changes during movement, it can move without trouble. That is, both frames constituting the scaffold 1
11 and 12 are urged in the direction of approaching each other by the tension spring 71, so that when the two girder members 31 and 32 approach, the hoisting device 84 is driven to wind the cable 83 of the pulley device 8 as necessary. And pull the moving pulley 82 closer,
When the distance between 31,32 is widened, both ropes 73,83
What is necessary is just to extend the frames 11 and 12 by the distance between the frames 11 and 12 while maintaining the tension spring 71 at an appropriate tension by pulling out from the frames 72 and 84.

更に、桁部材31の下端に形成されたフランジ部34の上
面にボルト頭などの障害物が突出していて走行車輪51の
通過が困難または不可能な場合には、障害物に接近して
いる支持機構41の駆動部44を平行クランク機構43を起立
させ、走行装置5を桁部材31から離れる方向へ移動さ
せ、走行車輪51を第4図に示すようにフランジ部34の上
面から浮上させた状態で障害物を通過させ、通過後に再
び走行装置5を元の位置に戻せばよい。このとき、障害
物を通過させる支持機構41はクランク機構43を起立させ
ることで走行車輪51とサイドローラ61の両方を桁部材31
から離すので懸吊状態を維持することができない。従っ
て、残りの二組の支持機構41,42により足場1を懸吊し
移動させることになる。
Further, when an obstacle such as a bolt head protrudes from the upper surface of the flange portion 34 formed at the lower end of the spar member 31 and it is difficult or impossible to pass the traveling wheel 51, a support approaching the obstacle is provided. A state in which the drive unit 44 of the mechanism 41 raises the parallel crank mechanism 43, moves the traveling device 5 in a direction away from the spar member 31, and raises the traveling wheels 51 from the upper surface of the flange portion 34 as shown in FIG. Then, the traveling device 5 may be returned to the original position after passing the obstacle. At this time, the support mechanism 41 for passing the obstacle raises the crank mechanism 43 so that both the traveling wheels 51 and the side rollers 61 are connected to the beam member 31.
So that the suspended state cannot be maintained. Therefore, the scaffold 1 is suspended and moved by the remaining two sets of support mechanisms 41 and 42.

このように、本実施例によれば桁部材31,32のフラン
ジ部34にボルト頭などの障害物が突出していても連続走
行しながら通過が可能であることは勿論のこと、桁部材
31,32の幅、即ち橋梁Aの幅が変化する場合にも足場1
を追従して伸縮させることにより何ら支障なく所望の点
検、補修箇所に移動することができるものである。
As described above, according to the present embodiment, even when obstacles such as bolt heads protrude from the flange portions 34 of the girder members 31 and 32, the girder members can of course pass while traveling continuously.
The scaffold 1 can be used even when the width of 31, 32, that is, the width of bridge A changes.
Can be moved to a desired inspection and repairing place without any trouble by expanding and contracting.

尚、本実施例は桁部材31,32の側面には接する二つの
サイドローラ61,62ならびに桁部材31の下端のフランジ
部34上面を走行する一つの走行車輪51を用いて足場1を
桁部材31,32に懸吊、支持する構成とし、桁部材31,32の
フランジ部34上面に突出した障害物を通過させる場合に
走行車輪51側だけを浮上させればよく操作が容易である
とともに構成が複雑でなく価格的にも有利である。更
に、本実施例は支持機構41,42の下端に連結された外側
フレーム11および内側フレーム12を引張りばね71により
互いに接近する方向へ付勢してサイドローラ61,62を桁
部材31,32の外側面に圧接する構成であるが、支持機構4
1,42に設けられたサイドローラ61,62が桁部材31,32の外
側面に圧接すればよく、手段は問わない。更に、サイド
ローラ61,62は桁部材31,32の対向した内側方の側面に圧
接させてもよく、この場合は両フレーム11,12を伸長す
る方向に付勢し滑車装置8を省略することができる。
In this embodiment, the scaffold 1 is connected to the beam members 31 by using two side rollers 61 and 62 in contact with the side surfaces of the beam members 31 and 32 and one traveling wheel 51 traveling on the upper surface of the flange portion 34 at the lower end of the beam member 31. When the obstacles protruding from the upper surface of the flange portion 34 of the beam members 31 and 32 are passed, only the traveling wheel 51 side needs to be lifted and the operation is easy. However, it is not complicated and is advantageous in terms of price. Further, in the present embodiment, the outer frame 11 and the inner frame 12 connected to the lower ends of the support mechanisms 41 and 42 are urged in a direction approaching each other by a tension spring 71 to cause the side rollers 61 and 62 to move toward the beam members 31 and 32. Although it is configured to press against the outer surface, the support mechanism 4
Any means may be used as long as the side rollers 61 and 62 provided on the members 1 and 42 are in pressure contact with the outer surfaces of the beam members 31 and 32, respectively. Further, the side rollers 61 and 62 may be pressed against the inner side surfaces of the beam members 31 and 32 facing each other. In this case, the pulley device 8 is omitted by urging the frames 11 and 12 in the extending direction. Can be.

第5図は第一発明の第二実施例を示すものであり、こ
の実施例の全体の構成は前記第一実施例とほぼ同様であ
るが、内側の支持機構42を外側の支持機構41と同様の構
成として両支持機構41,42にそれぞれ平行クランク機構4
3に設けられたサイドローラ61,62と走行車輪51.51とを
具えた構成であり、この場合にはより安定した状態で足
場1を懸吊、支持することができる。
FIG. 5 shows a second embodiment of the first invention. The overall configuration of this embodiment is almost the same as that of the first embodiment, except that the inner support mechanism 42 is replaced with the outer support mechanism 41. As a similar configuration, the parallel crank mechanism 4 is attached to both support mechanisms 41 and 42, respectively.
3 and the running wheels 51.51. In this case, the scaffold 1 can be suspended and supported in a more stable state.

第6図および第7図は第二発明の一実施例を示すもの
であり、左右方向へ所定の間隔を有して橋脚2に架設さ
れた複数の桁部材31,32,38,39,40の内で両外側の各一対
の桁部材31,32ならびに39,40に懸吊支持されて長手方向
へ走行可能としたそれぞれ左右方向へ伸縮可能な各四組
の支持機構41,42により構成される走行部91,92と、左右
方向の長さが橋梁Aの幅よりも僅かに広く左右方向へ伸
縮可能な足場13と、前記一対の走行部91,92と足場13の
左右両端とを連結した一対の吊下げ部材93,94とから構
成される。走行部91,92の支持機構41,42は前記第1図な
らびに第2図に示した第一発明の第一実施例の足場装置
に示したものと同様の構成を有する。従って、支持機構
41,42の詳細についての説明は省略する。そして、橋梁
Aの左右両外側部において配置された橋梁Aの長手方向
に延びる細長矩形状の上部連結フレーム95,95に、互い
に橋梁Aの長手方向に並んだ各四組の支持機構41,42が
それぞれ一体に連結されて走行部91,92が形成されてい
る。これらの走行部91,92を形成する上部連結フレーム9
5,95には、足場13から露出した長手方向の両端部に吊下
げ部材93,94がそれぞれ下方に向けて連結されていると
ともに、それらの吊下げ部材93,94の下端に、前記上部
連結フレーム95,95にそれぞれ対向して配置された下部
連結フレーム96,96がそれぞれ結合されている。更に、
これらの下部連結フレーム96,96間に架設されている足
場13と下部連結フレーム96,96とが橋梁Aにおける長手
方向の中央において配置された旋回軸97,97によって旋
回可能に固着されている。このように、走行部91,92と
足場13とが一定の範囲にわたって旋回可能に連結されて
いるので、例えば、橋梁Aがカーブしている場合にも、
走行部91,92がそれぞれ旋回軸97,97を軸として旋回する
(図7の2点鎖線で示す状態)のでそのままの状態で足
場13を橋梁Aの長さ方向へ向けて走行させることにより
橋梁Aのカーブ領域にも対応させることができる。更
に、足場13は一対の三つのフレーム14,15,16からなるテ
レスコープ式の伸縮可能なものを左右に対向配置させて
連結したものである。
6 and 7 show an embodiment of the second invention, in which a plurality of girder members 31, 32, 38, 39, 40 erected on the pier 2 at predetermined intervals in the left-right direction. It is constituted by four sets of support mechanisms 41 and 42, each of which can be extended and contracted in the left and right direction, and can be suspended in the pair of beam members 31, 32 and 39, 40 on both outer sides and can run in the longitudinal direction. Connecting the traveling portions 91 and 92, the scaffold 13 whose length in the left-right direction is slightly wider than the width of the bridge A and can expand and contract in the left-right direction, and connects the pair of traveling portions 91 and 92 to the left and right ends of the scaffold 13. And a pair of hanging members 93, 94. The support mechanisms 41, 42 of the running portions 91, 92 have the same configuration as that shown in the scaffolding device of the first embodiment of the first invention shown in FIGS. 1 and 2. Therefore, the support mechanism
Description of details of 41 and 42 is omitted. Each of four sets of support mechanisms 41, 42, which are arranged in the longitudinal direction of the bridge A, are attached to the elongated rectangular upper connection frames 95, 95 extending in the longitudinal direction of the bridge A, which are disposed at the left and right outer sides of the bridge A. Are integrally connected to each other to form running portions 91 and 92. Upper connecting frame 9 forming these running parts 91 and 92
At 5,95, hanging members 93, 94 are respectively connected to the both ends in the longitudinal direction exposed from the scaffold 13 downward, and the upper connecting members are connected to lower ends of the hanging members 93, 94. Lower connecting frames 96, 96 arranged opposite to the frames 95, 95, respectively, are connected. Furthermore,
The scaffold 13 erected between the lower connection frames 96, 96 and the lower connection frames 96, 96 are pivotally fixed by pivot shafts 97, 97 arranged at the longitudinal center of the bridge A. As described above, since the traveling portions 91 and 92 and the scaffold 13 are pivotably connected over a certain range, for example, even when the bridge A is curved,
Since the running parts 91 and 92 turn around the turning axes 97 and 97, respectively (the state shown by a two-dot chain line in FIG. 7), the scaffold 13 is caused to run in the length direction of the bridge A as it is, so that the bridge It can also correspond to the curve area A. Further, the scaffold 13 is a telescopic telescopic type consisting of a pair of three frames 14, 15, 16 which are connected to each other by being arranged to face left and right.

かかる実施例は前記第一発明の実施例と異なり足場13
が橋梁Aの全幅に亘って点検ならびに補修作業をするこ
とが可能であり、また、各走行部91,92の支持機構41,42
が前記第一発明の足場装置と同様の構成ならびに作用効
果を有するため、桁部材31,32ならびに39,40の幅が変化
し、或いはそれらのフランジ部34上面に障害物があつて
も前記と同様の作用により何ら支障なく移動することが
できる。また、本実施例は足場13が伸縮可能であり、橋
梁Aの幅が変化する場合にも充分に対応することができ
るものである。
This embodiment differs from the embodiment of the first invention in that the scaffold 13
Can perform inspection and repair work over the entire width of the bridge A, and support mechanisms 41 and 42 of the traveling parts 91 and 92.
Has the same configuration and operation and effect as the scaffolding device of the first invention, so that the width of the girder members 31, 32 and 39, 40 changes, or even if there is an obstacle on the upper surface of the flange portion 34, It can move without any trouble by the same action. Further, in the present embodiment, the scaffold 13 is extendable and contractable, and can sufficiently cope with a case where the width of the bridge A changes.

尚、本実施例では走行部91,92の支持機構41,42を前記
第1図ならびに第2図に示した第一発明の第一実施例の
足場装置に示したものと同様の構成としたが、第5図に
示した第一発明の第二実施例の足場装置に示したものと
同様の構成としてもよい。
In this embodiment, the support mechanisms 41, 42 of the traveling portions 91, 92 have the same configuration as that shown in the scaffolding device of the first embodiment of the first invention shown in FIGS. 1 and 2. However, the configuration may be the same as that shown in the scaffold device of the second embodiment of the first invention shown in FIG.

[発明の効果] 以上の構成を有する本発明によれば、従来の橋梁用足
場装置と同様に桁部材の下端に懸吊され使い勝手が良
く、桁部材の下端に形成されたフランジ部にボルト頭な
どの障害物が突出し、或いは橋梁の幅が変化する場合に
も、所望の点検、補修箇所へ自由に移動することができ
るものである。
[Effects of the Invention] According to the present invention having the above-described configuration, similar to the conventional scaffolding device for a bridge, it is suspended from the lower end of the girder member and is easy to use, and the bolt head is attached to the flange formed at the lower end of the girder member. Even when an obstacle such as a projection protrudes or the width of the bridge changes, it is possible to freely move to a desired inspection and repair location.

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

第1図ならびに第4図は第一発明の一実施例における設
置状態を示すものであり、第1図は正面図、第2図は第
1図のII−II線に沿う断面図、第3図は第1図の部分拡
大断面図、第4図は第3図における作動状態を示す部分
図、第5図は第一発明の異なる実施例における部分拡大
断面図、第6図ならびに第7図は第二発明の一実施例に
おける設置状態を示すものであり、第6図は正面図、第
7図は第6図のVII−VII線に沿う断面図、第8図ならび
に第9図は従来例を示すもので、第8図は設置状態を示
す斜視図、第9図は移動方法を示す概略説明図である。 1……足場、2……橋脚、5……走行装置、8……滑車
装置、13……足場、31,32……桁部材、41,42……支持機
構、45……待避機構、51……走行車輪、61,62……サイ
ドローラ、91,92……走行部、A……橋梁。
1 and 4 show an installation state in one embodiment of the first invention. FIG. 1 is a front view, FIG. 2 is a sectional view taken along the line II-II of FIG. FIG. 4 is a partial enlarged sectional view of FIG. 1, FIG. 4 is a partial view showing an operation state in FIG. 3, FIG. 5 is a partially enlarged sectional view of a different embodiment of the first invention, FIG. 6 and FIG. FIG. 6 is a front view, FIG. 7 is a sectional view taken along the line VII-VII of FIG. 6, FIG. 8 and FIG. FIG. 8 is a perspective view showing an installed state, and FIG. 9 is a schematic explanatory view showing a moving method. DESCRIPTION OF SYMBOLS 1 ... Scaffold, 2 ... Bridge pier, 5 ... Running device, 8 ... Pulley device, 13 ... Scaffold, 31, 32 ... Girder member, 41, 42 ... Support mechanism, 45 ... Evacuation mechanism, 51 ... running wheels, 61, 62 ... side rollers, 91, 92 ... running section, A ... bridge.

Claims (4)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】橋梁の左右方向へ伸縮可能な足場の左右両
部端を橋脚に架設された左右一対の桁部材にそれぞれ懸
吊させた支持機構が少なくとも三組ずつ前後へ並んで設
けられており、前記各支持機構は前記各桁部材の側面に
それぞれ接するサイドローラと前記桁部材の下端フラン
ジ面を走行する走行車輪とを有する走行装置を具えてお
り、前記各走行装置はそれぞれ独立して作動して前記各
走行車輪を前記フランジ面から浮上させる待避機構を具
えていることを特徴とする橋梁用足場装置。
An at least three sets of support mechanisms are provided in front and rear of at least three pairs of left and right ends of a scaffold capable of extending and contracting in the left and right direction of a bridge, respectively, on a pair of left and right girder members provided on the pier. And each of the support mechanisms includes a traveling device having side rollers that respectively contact the side surfaces of the respective girder members and traveling wheels that travel on a lower flange surface of the girder member. A scaffolding device for a bridge, comprising a retracting mechanism that operates to cause each traveling wheel to float from the flange surface.
【請求項2】足場が内側フレームと外側フレームとから
なり、且つこの両フレームはそれぞれに設けられたサイ
ドローラが桁部材の側面に接する方向へ付勢されて互い
に左右方向へ伸縮可能に結合されている請求項1記載の
橋梁用足場装置。
2. A scaffold comprising an inner frame and an outer frame, and the two frames are connected to each other so that side rollers provided on the respective frames are urged in a direction in contact with a side surface of the spar member to be able to expand and contract in the left-right direction. The scaffolding device for a bridge according to claim 1, wherein
【請求項3】左右方向へ並んで橋脚に架設された複数の
桁部材の内で両外面の各一対に対向して配置された左右
方向への伸縮可能な少なくとも三組ずつ前後に並べた支
持機構により懸吊して長手方向へ走行可能とした左右一
対の走行部と、左右方向の長さが橋梁とほぼ同幅で左右
方向へ伸縮可能な足場と、前記一対の走行部と前記足場
の左右両端部とを連結した吊下げ部材とからなり、前記
各支持機構は前記各桁部材の側面にそれぞれ接するサイ
ドローラと前記桁部材の下端フランジ面を走行する走行
車輪とを有する走行装置を具えており、前記各走行装置
はそれぞれ独立して作動して前記各走行車輪を前記フラ
ンジ面から浮上させる待避機構を具えていることを特徴
とする橋梁用足場装置。
3. A plurality of support members which are arranged in front and rear of at least three sets of a plurality of girder members laid on a bridge pier which are arranged side by side in the left and right direction and which can be extended and contracted in the left and right direction, respectively, and are opposed to each pair of both outer surfaces. A pair of right and left running portions suspended by a mechanism and capable of running in the longitudinal direction, a scaffold that has a length in the left and right direction that is substantially the same width as the bridge, and that can expand and contract in the left and right direction, and a pair of the running portions and the scaffold. The support device includes a suspension member connected to both left and right ends, and each of the support mechanisms includes a traveling roller having side rollers that respectively contact side surfaces of the respective girder members and traveling wheels that travel on a lower end flange surface of the girder member. The scaffolding device for a bridge, wherein each of the traveling devices includes a retracting mechanism that operates independently of each other to lift each of the traveling wheels from the flange surface.
【請求項4】各支持機構が内側フレームと外側フレーム
とからなり、且つこの両フレームはそれぞれに設けられ
たサイドローラが桁部材の側面に接する方向へ付勢され
て互いに左右方向へ伸縮可能に結合されている請求項3
記載の橋梁用足場装置。
4. Each support mechanism comprises an inner frame and an outer frame, and both frames are capable of being expanded and contracted in the left-right direction by the side rollers provided in the respective frames being urged in the direction in contact with the side surface of the spar member. Claim 3 being combined
The scaffolding device for a bridge according to the above.
JP22767590A 1990-08-29 1990-08-29 Bridge scaffolding equipment Expired - Fee Related JP2890208B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22767590A JP2890208B2 (en) 1990-08-29 1990-08-29 Bridge scaffolding equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22767590A JP2890208B2 (en) 1990-08-29 1990-08-29 Bridge scaffolding equipment

Publications (2)

Publication Number Publication Date
JPH04108905A JPH04108905A (en) 1992-04-09
JP2890208B2 true JP2890208B2 (en) 1999-05-10

Family

ID=16864572

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22767590A Expired - Fee Related JP2890208B2 (en) 1990-08-29 1990-08-29 Bridge scaffolding equipment

Country Status (1)

Country Link
JP (1) JP2890208B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007177561A (en) * 2005-12-28 2007-07-12 Otaki Jack Kk Transportation vehicle for heavy load
JP7350535B2 (en) * 2019-06-28 2023-09-26 日軽エンジニアリング株式会社 Scaffolding for bridge inspection

Also Published As

Publication number Publication date
JPH04108905A (en) 1992-04-09

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