JP4321979B2 - Branch construction equipment - Google Patents

Branch construction equipment Download PDF

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Publication number
JP4321979B2
JP4321979B2 JP2001226124A JP2001226124A JP4321979B2 JP 4321979 B2 JP4321979 B2 JP 4321979B2 JP 2001226124 A JP2001226124 A JP 2001226124A JP 2001226124 A JP2001226124 A JP 2001226124A JP 4321979 B2 JP4321979 B2 JP 4321979B2
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Japan
Prior art keywords
sliding body
existing pipe
horizontal
branch
sliding
Prior art date
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JP2001226124A
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Japanese (ja)
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JP2003034957A (en
Inventor
真澄 小林
志伸 佐竹
渉 猪股
章男 福岡
聖志 菊田
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Tokyo Gas Co Ltd
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Tokyo Gas Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、分岐部施工装置に関し、さらに詳しくは、既設管に新たな管路を連結する際の開口部形成に用いる装置の構成に関する。
【0002】
【従来の技術】
既設の管路から分岐管の取出し工事を施工する際、既設管路をなす管に分岐開口を形成し、その分岐開口に対して分岐サドルなどの中継部材を取り付けて分岐管を接続する工法が多用されている。
従来、既設管路に分岐開口を形成する場合には、既設管路周面における分岐管の取り出し位置に対応する位置に穿孔装置を取り付けるためのサドルを装備した穿孔用クランプ部材を装着し、サドルに穿孔装置を設置して作業を行うようになっている。
既設管路は、地面からの衝撃の影響により損傷するのを防止するために地面からかなり深い位置に埋設されている。このため、分岐開口を形成する際には、開口形成のための掘削範囲を小さくする目的で、既設管路の上面に開口を形成することが多い。
図4は、従来の分岐開口施工状態を示す図であり、同図において既設管路Aの上周面側に穿孔装置Bが設置され、開口が形成される。
【0003】
一方、既設管路Aの埋設深さは、埋設位置の環境によって異なる場合もあり、比較的浅い位置に埋設されていることもある。
このような場合に図4に示した方法により既設管路Aの上周面に開口を形成するとその開口に連結される分岐管が地表近くに位置してしまい、地表からの衝撃を受けやすくなる他、道路工事時に損傷を招くことがある。このため、既設管路Aの周面において横方向に分岐管を取り出すことになる。
図5は、この場合を示しており、同図において既設管路Aの埋設位置近傍に既設管路を露出させる立抗Cとは別に新たに作業者Dが入って作業を行うためのスペースを有する立抗Eを設け、既設管路Aに対して側面から穿孔装置Bを設置して開口を形成する。
【0004】
【発明が解決しようとする課題】
図5に示したような作業方法では、既設管路Aから水平方向に分岐管を取り出す開口を形成することにより、図6に示すように、地表から分岐管Pの取り出し位置までの深さにおいて、垂直方向への取り出し(図6中、左側に示す状態)での深さH1に比べて水平方向の取り出し(図6中、右側に示す状態)での深さH2の方が深くすることができ(H2−H1=H)、地面からの衝撃の影響を受けにくくすることができる他、他の工事による損傷の虞を回避できる。
しかし、水平方向の取り出しに際しては、作業効率を良くするために既設管路Aに隣接させて形成する立抗Eの大きさが大きく必要となり、結果として、掘削作業および埋め戻し作業に要する時間が多くなり、作業工数の増加により作業コストの上昇を招く。特に、埋設深さが浅くなる位置に水平取り出しを行わなければならないような場合に既設管路近隣での掘削範囲を広げた場合には、埋め戻し時での押し固めが不十分であると、掘削範囲が狭い場合に比べて地表からの衝撃による悪影響が出やすい。
さらに水平方向への取り出しに際して作業用の立抗Eを大きくすると、隣接する位置に埋設管などがある場合にはその埋設管を損傷する危険もある。
【0005】
本発明の目的は、地表からの埋設位置を深くすることができる水平方向での分岐管取り出しのための開口形成における問題に鑑み、作業コストの上昇を招くことなく作業性を向上させることができる構成を備えた分岐部施工装置を提供することにある。
【0006】
【課題を解決するための手段】
請求項1記載の発明は、既設管路の水平方向周面に分岐部を形成するための分岐部施工装置であって、既設管路の側方に設置される基台と、上記基台に対して水平方向に摺動可能に設けられ、垂直方向に設置された駆動源からの駆動力を水平方向に変換して上記既設管路の水平方向周面に対向する刃物に伝達可能な動力伝達変換部を有する摺動体と、上記基台に対して縦方向で揺動可能に設けられ、揺動端側の最端部に位置する揺動操作部が設けられると共に該最端部に至る途中に上記摺動体と当接可能な摺動駆動部が設けられている操作部材とを備え、上記操作部材を揺動させることにより上記摺動体を上記既設配管に向けて摺動させ上記動力伝達変換部に装備された刃物を駆動しながら上記既設管路の水平方向周面に向けて進行させて上記既設配管の側面を水平方向に穿孔可能にしたことを特徴としている。
【0007】
請求項2記載の発明は、上記摺動体に有する動力伝達変換部に、直角方向で噛み合う傘歯車が設けられ、垂直方向に回転軸を有する歯車には駆動源が、水平方向に回転軸を有する歯車にはドリルなどの刃物がそれぞれ連結されていることを特徴としている。
【0008】
請求項3記載の発明は、上記操作部材における揺動端側の最端部が足踏みペダルで構成され、該最端部に至る途中に位置する前記摺動駆動部は、該操作部材の揺動に連動して上記摺動体を押圧駆動可能であり、上記足踏みペダルが踏み込まれることにより上記摺動体を上記既設管路の水平方向周面に向けて摺動可能にしたことを特徴としている。
【0009】
【発明の実施の形態】
以下、図面に基づき本発明の実施の形態を説明する。
図1は、本発明の実施形態に係る実施例による分岐部施工装置1の使用状態を示す図であり、同図では、後述する操作部材を操作する前の初期状態が示されている。
同図において分岐部施工装置1は、既設管路(便宜上、図5において示した符号Aを用いる)の側方に設置される基台2を備えている。
基台2は、既設管路Aの近傍において既設管路Aの水平方向周面が露出する深さで掘削された作業用立抗(便宜上、符号Hで示す)の底面に設置される底板2Aを備え、該底板2Aの上面に下向き開口状態の箱状の摺動ガイド部2Bが一体化されている。
摺動ガイド部2Bの天板2B1には、詳細を図示しないが、既設管路Aの径方向と平行する方向である水平方向に長手方向を有するガイド溝が設けられており、ガイド溝にはボルト3が嵌合している。
ボルト3は、基台2の上面において摺動可能に設けられている摺動体4の底面に貫通されて締結されており、摺動体4が水平方向に移動する際の摺動ガイド部材として機能するようになっている。
【0010】
摺動体4は、基台2における摺動ガイド部2Bの上面に載置されて水平方向に摺動可能な筐体で構成され、内部には、動力伝達変換部5が装備されている。動力伝達変換部5は、摺動体4の天板および既設管路Aに対向する側に位置する側板にそれぞれ回転軸6A,7Aが支持されて互いに直角方向で噛み合い可能な傘歯車6,7を備えており、垂直方向に延長された回転軸6Aには、電動モータなどの駆動源(図1において符号Sで示す部材)が取り付けられ、水平方向に延長された回転軸7Aには、既設管路の水平方向周面に対向して穿孔対象となる分岐開口の口径に対応する外径を有したドリルなどの刃物(図示されず)が取り付けられるようになっている。
【0011】
基台2には、支軸S1が挿通支持されており、支軸S1には摺動体4の下面から下方に突出させてある係止片4Aとの間にコイルスプリングSPが掛け止められている。
さらに支軸S1には、操作部材8の基端部が一体化されている。
操作部材8は、支軸S1を支点として縦方向に揺動可能に支持されており、揺動端側の最端部に足を載せることができる揺動操作部としての足踏みペダル8Aが設けられ、支軸S1が位置する基端から最端部に至る途中には摺動体4の側面に当接可能な摺動駆動部8Bが設けられている。
コイルスプリングSPは、摺動体4を支軸S1側に向け移動させる習性を有しており、このため、摺動体4は、係止片4Aに掛け止められているコイルスプリングSPの習性により図1において左側に向けて移動することができ、この移動に伴い側面に当接している摺動駆動部8Bを押し動かして操作部材8を時計方向に回動させて図1に示すように、足踏みペダル8Aが跳ね上げられた状態をなす。
【0012】
本実施例は以上のような構成であるから、図1に示す状態の分岐部施工装置1は、既設管路Aの側方近傍に形成された立抗Hの底面に設置される。なお、このとき、基台2の底板2Aをアンカーボルト(図示されず)などによって立抗Hの底面に固定するようにしても良い。
摺動体4に装備されている動力伝達変換部5における垂直方向および水平方向の各回転軸6A、7Aにそれぞれ駆動源および刃物を装着し、操作部材8の足踏みペダル8Aを押し込む。
【0013】
操作部材8の足踏みペダル8Aが踏み込まれると、操作部材8がコイルスプリングSPの習性に抗して縦方向で下向き、つまり図1において時計方向に回動し、図2に示す状態となる。
図2に示す状態は、操作部材8を最大限踏み込んだ状態であり、この状態に至る過程で摺動体4が摺動駆動部8Bによって押圧されて既設管路A側に向けて摺動する。
摺動体4が既設管路Aに向けて摺動する際には、動力伝達変換部5における駆動源からの駆動力が刃物に伝達できるので、刃物によって既設管路に分岐開口を穿孔することができる。しかも、穿孔のための送り量は、操作部材8の揺動ストロークに応じて多くされるので、刃物が既設管路Aの周壁を貫通するまで足踏みペダル8Aを踏み込めばよい。
【0014】
既設管路Aに対する穿孔作業が終了すると、足踏みペダル8Aでの踏み込みを解除することにより操作部材8がコイルスプリングSPの習性により図1に示す状態に復帰し、これに伴い摺動体4がコイルスプリングSPの習性により刃物を既設管路Aから抜き出す方向に摺動して図1に示す状態に復帰する。
【0015】
図3は、穿孔後の作業を示す図であり、同図(A)において、穿孔後の既設管路A内に残っている切り粉を磁石9によって取り除いた後、図3(B)に示すように、サドルに止栓10を取り付ける。図3に示す作業時には、分岐開口と外気とを遮断するためにバッグ11が用いられる。
【0016】
以上のような実施例によれば、動力伝達変換部5における垂直方向の回転軸6Aに取り付けられる駆動源は、刃物の切り込みに要する送り操作を行わないで済むので、従来のように駆動源を押し込んで刃物を既設管路Aの周壁に貫通させる労力を不要にすることができる。これにより、穿孔作業時で労力負担を軽減することが可能となる。特に、刃物の送りのための操作は、モーメントを利用できる操作部材8の足踏みペダル8Aを操作するだけで済むので、送り操作に要する労力負担も低減することが可能となる。
【0017】
また、本実施例によれば、操作部材8の足踏みペダル8Aは、縦方向での揺動を行わせる方向に踏み込むだけでよいので、分岐部施工装置1を設置するための立抗Hのスペースとしては、駆動源を横たわらせる必要がないことも併せて概ね基台2の設置スペースに対して僅かにはみ出る程度で済ませることができる。
【0018】
【発明の効果】
請求項1および3記載の発明によれば、基台に設けられて摺動可能な摺動体を操作部材の揺動操作によって摺動させることで動力伝達変換部に装備されている刃物を既設管路の水平方向周面に向けて摺動させることができる。これにより、分岐開口を形成する刃物が操作部材の縦方向(垂直方向)での揺動操作により既設管路の水平方向周面に進行できるので、刃物を進行させるための水平方向での作業スペースを小さくすることができる。この結果、作業スペースとして掘削する立抗を小さくすることができる他、道路工事復旧費用の低減を可能とすることができる。
【0019】
請求項2記載の発明によれば、摺動体に設けられている傘歯車における垂直方向の回転軸に駆動源を、そして水平方向の回転軸に刃物をそれぞれ取り付けることにより、摺動体が如何様な位置に変位した場合でも駆動力の伝達が行える。これにより、駆動源からの駆動力は摺動体の送り変位に拘わらず既設管路の開口形成のための動力として用いることが可能となるので、水平方向での少ないスペースを利用して既設管路の水平方向周面への分岐開口を形成することができる。
【図面の簡単な説明】
【図1】本発明の実施形態に係る実施例による分岐部施工装置の構成を示す図である。
【図2】図1に示した分岐部施工装置の一態様を示す図である。
【図3】図1に示した分岐部施工装置による分岐開口形成後の処理を説明するための図である。
【図4】既設管路の垂直方向周面に分岐開口を施工する状態を示す図である
【図5】既設管路の水平方向周面に分岐開口を施工する状態を示す図である。
【図6】図5に示した分岐開口施工の利点を説明するための図である。
【符号の説明】
1 分岐部施工装置
2 基台
4 摺動体
5 動力伝達変換部
6 傘歯車の一方をなす歯車
6A 垂直方向の回転軸
7 傘歯車の他方をなす歯車
7A 水平方向の回転軸
8 操作部材
8A 揺動操作部としての足踏みペダル
8B 摺動駆動部
A 既設管路
S1 支軸
SP コイルスプリング
[0001]
BACKGROUND OF THE INVENTION
More particularly, the present invention relates to a configuration of an apparatus used for forming an opening when a new pipe line is connected to an existing pipe.
[0002]
[Prior art]
When constructing a branch pipe from an existing pipe, a branch opening is formed in the pipe that forms the existing pipe, and a relay member such as a branch saddle is attached to the branch opening to connect the branch pipe. It is used a lot.
Conventionally, when a branch opening is formed in an existing pipe line, a drilling clamp member equipped with a saddle for attaching a drilling device is mounted at a position corresponding to the branch pipe take-out position on the peripheral surface of the existing pipe line. A drilling device is installed on the machine.
The existing pipeline is buried at a considerably deep position from the ground in order to prevent damage due to the impact from the ground. For this reason, when the branch opening is formed, the opening is often formed on the upper surface of the existing pipeline for the purpose of reducing the excavation range for forming the opening.
FIG. 4 is a diagram showing a conventional branch opening construction state, in which a perforation apparatus B is installed on the upper peripheral surface side of the existing pipe line A, and an opening is formed.
[0003]
On the other hand, the burial depth of the existing pipeline A may vary depending on the environment of the burial position, and may be buried at a relatively shallow position.
In such a case, when an opening is formed in the upper peripheral surface of the existing pipe A by the method shown in FIG. 4, the branch pipe connected to the opening is located near the ground surface, and is easily subjected to an impact from the ground surface. In addition, it may cause damage during road construction. For this reason, the branch pipe is taken out in the lateral direction on the peripheral surface of the existing pipeline A.
FIG. 5 shows this case. In FIG. 5, a space for a worker D to enter and perform work separately from the resisting C that exposes the existing pipeline in the vicinity of the buried position of the existing pipeline A is shown. A resister E is provided, and an opening is formed by installing the perforating apparatus B from the side with respect to the existing pipeline A.
[0004]
[Problems to be solved by the invention]
In the working method as shown in FIG. 5, by forming an opening for taking out the branch pipe in the horizontal direction from the existing pipe A, as shown in FIG. 6, in the depth from the ground surface to the take-out position of the branch pipe P. The depth H2 in the horizontal extraction (the state shown on the right side in FIG. 6) may be deeper than the depth H1 in the vertical extraction (the state shown on the left side in FIG. 6). (H2−H1 = H), and it can be made less susceptible to the impact from the ground, and the possibility of damage due to other construction can be avoided.
However, when taking out in the horizontal direction, it is necessary to increase the size of the resisting E formed adjacent to the existing pipe line A in order to improve work efficiency. As a result, the time required for excavation work and backfilling work is increased. The increase in work man-hours leads to an increase in work costs. In particular, when the excavation range near the existing pipe line is widened when horizontal removal must be performed at a position where the embedding depth becomes shallow, if the compaction at the time of backfilling is insufficient, Compared to the case where the excavation range is narrow, the adverse effects of impact from the ground surface are likely to occur.
Further, if the working resistance E is increased at the time of taking out in the horizontal direction, if there is an embedded pipe or the like at an adjacent position, there is a risk of damaging the embedded pipe.
[0005]
An object of the present invention is to improve workability without causing an increase in work cost in view of the problem in forming an opening for taking out a branch pipe in the horizontal direction that can deepen the buried position from the ground surface. It is providing the branch part construction apparatus provided with the structure.
[0006]
[Means for Solving the Problems]
The invention according to claim 1 is a bifurcation construction device for forming a bifurcation portion on a horizontal circumferential surface of an existing pipeline, and a base installed on a side of the existing pipeline, and the base Power transmission that is slidable in the horizontal direction, and that can convert the driving force from the drive source installed in the vertical direction to the horizontal direction and transmit it to the blade facing the horizontal circumferential surface of the existing pipe line A sliding body having a conversion part and a swinging operation part which is provided so as to be swingable in the vertical direction with respect to the base and located at the extreme end on the swinging end side and on the way to the extreme end It said sliding member and an operating member capable of abutting sliding drive portion is provided, the power transmitting and converting slide toward the sliding body in the existing pipe by swinging the operating member while driving the blade that is provided on part above it is allowed to proceed toward a horizontal peripheral surface of the existing pipe line It is characterized in that to allow drilling the sides of the existing pipes in the horizontal direction.
[0007]
According to a second aspect of the present invention, a bevel gear meshing in a right angle direction is provided in the power transmission conversion portion of the sliding body, a drive source is provided in a gear having a rotation axis in the vertical direction, and a rotation shaft in the horizontal direction. The gear is characterized in that a cutting tool such as a drill is connected to the gear.
[0008]
According to a third aspect of the invention, the uppermost end of the oscillating end side of the operating member is constituted by a foot pedal, the sliding drive portion located way to the outermost end, the swinging of the operating member in conjunction with a can press drive the sliding body, it is characterized in that the sliding body by the foot pedal is depressed and can slide toward the horizontal peripheral surface of the existing pipeline.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a diagram illustrating a usage state of a branching section construction apparatus 1 according to an example according to an embodiment of the present invention. In FIG. 1, an initial state before an operation member described later is operated is illustrated.
In the same figure, the branch part construction apparatus 1 includes a base 2 that is installed on the side of an existing pipe line (for convenience, reference numeral A shown in FIG. 5 is used).
The base 2 is a bottom plate 2A installed on the bottom surface of a working support (indicated by a symbol H for convenience) excavated at a depth at which the horizontal circumferential surface of the existing pipeline A is exposed in the vicinity of the existing pipeline A. And a box-shaped sliding guide portion 2B which is open downward is integrated with the upper surface of the bottom plate 2A.
Although not shown in detail in the top plate 2B1 of the sliding guide portion 2B, a guide groove having a longitudinal direction in the horizontal direction that is parallel to the radial direction of the existing pipe line A is provided. Bolt 3 is fitted.
The bolt 3 is penetrated and fastened to the bottom surface of the sliding body 4 that is slidably provided on the upper surface of the base 2 and functions as a sliding guide member when the sliding body 4 moves in the horizontal direction. It is like that.
[0010]
The sliding body 4 is configured by a housing that is placed on the upper surface of the sliding guide portion 2B in the base 2 and is slidable in the horizontal direction, and a power transmission conversion portion 5 is provided therein. The power transmission conversion unit 5 includes bevel gears 6 and 7 that can be engaged with each other at right angles by rotating shafts 6A and 7A supported on the top plate of the sliding body 4 and the side plate located on the side facing the existing pipe line A, respectively. A drive source such as an electric motor (a member denoted by reference numeral S in FIG. 1 ) is attached to the rotary shaft 6A that is extended in the vertical direction, and the existing pipe is attached to the rotary shaft 7A that is extended in the horizontal direction. A blade (not shown) such as a drill having an outer diameter corresponding to the diameter of the branch opening to be drilled is attached to face the horizontal circumferential surface of the road.
[0011]
A support shaft S1 is inserted and supported on the base 2, and a coil spring SP is hooked between the support shaft S1 and a locking piece 4A protruding downward from the lower surface of the sliding body 4. .
Further, the base end portion of the operation member 8 is integrated with the support shaft S1.
The operation member 8 is supported so as to be able to swing in the vertical direction with the support shaft S1 as a fulcrum, and is provided with a foot pedal 8A as a swing operation portion capable of placing a foot on the extreme end on the swing end side. In the middle from the base end where the support shaft S1 is located to the endmost portion, a sliding drive portion 8B capable of contacting the side surface of the sliding body 4 is provided.
The coil spring SP has a habit of moving the sliding body 4 toward the support shaft S1. For this reason, the sliding body 4 is shown in FIG. 1 by the habit of the coil spring SP that is hooked on the locking piece 4A. As shown in FIG. 1, the operation member 8 is rotated clockwise by pushing the sliding drive unit 8B that is in contact with the side surface in accordance with this movement. 8A is flipped up.
[0012]
Since the present embodiment is configured as described above, the branching portion construction apparatus 1 in the state shown in FIG. 1 is installed on the bottom surface of the resisting H formed near the side of the existing pipeline A. At this time, the bottom plate 2A of the base 2 may be fixed to the bottom surface of the resisting H by an anchor bolt (not shown).
A drive source and a cutter are mounted on each of the vertical and horizontal rotation shafts 6A and 7A in the power transmission conversion unit 5 mounted on the sliding body 4, and the foot pedal 8A of the operation member 8 is pushed in.
[0013]
When the foot pedal 8A of the operating member 8 is depressed, the operating member 8 is turned downward in the vertical direction against the behavior of the coil spring SP, that is, rotated clockwise in FIG. 1, resulting in the state shown in FIG.
The state shown in FIG. 2 is a state in which the operating member 8 is fully depressed, and in the process of reaching this state, the sliding body 4 is pressed by the sliding drive unit 8B and slides toward the existing pipe line A side.
When the sliding body 4 slides toward the existing pipeline A, the driving force from the drive source in the power transmission conversion unit 5 can be transmitted to the blade, so that the branch opening can be drilled in the existing pipeline by the blade. it can. In addition, since the feed amount for drilling is increased according to the swing stroke of the operation member 8, the foot pedal 8 </ b> A may be depressed until the blade penetrates the peripheral wall of the existing pipe line A.
[0014]
When the drilling operation for the existing pipe A is completed, the operation member 8 returns to the state shown in FIG. 1 due to the behavior of the coil spring SP by releasing the stepping with the foot pedal 8A. The blade is returned to the state shown in FIG. 1 by sliding in the direction in which the blade is extracted from the existing pipeline A due to the custom of SP.
[0015]
FIG. 3 is a diagram showing the work after drilling. In FIG. 3A, the chips 9 remaining in the existing pipe A after drilling are removed by the magnet 9 and then shown in FIG. In this manner, the stopper 10 is attached to the saddle. In the operation shown in FIG. 3, the bag 11 is used to block the branch opening and the outside air.
[0016]
According to the embodiment as described above, the drive source attached to the vertical rotation shaft 6A in the power transmission conversion unit 5 does not need to perform the feeding operation required for cutting the blade, so that the drive source is used as in the prior art. It is possible to eliminate the labor of pushing the blade into the peripheral wall of the existing pipeline A. Thereby, it becomes possible to reduce a labor burden at the time of a drilling operation. In particular, since the operation for feeding the blade needs only to operate the foot pedal 8A of the operation member 8 that can utilize the moment, it is possible to reduce the labor burden required for the feeding operation.
[0017]
Further, according to the present embodiment, the foot pedal 8A of the operation member 8 only has to be stepped in the direction of swinging in the vertical direction. As a result, it is not necessary to lie down on the drive source, and it can be completed only slightly beyond the installation space of the base 2.
[0018]
【The invention's effect】
According to the first and third aspects of the present invention, the blade mounted on the power transmission conversion unit can be provided by sliding the sliding body provided on the base and slidable by the swinging operation of the operation member. It can be slid toward the horizontal circumferential surface of the road. As a result, the blade that forms the branch opening can advance to the horizontal circumferential surface of the existing pipe line by the swinging operation of the operation member in the vertical direction (vertical direction), so that the work space in the horizontal direction for advancing the blade Can be reduced. As a result, it is possible to reduce the resistance to excavating as a work space and to reduce the cost of road construction restoration.
[0019]
According to the second aspect of the present invention, the sliding body can be mounted in any manner by attaching the drive source to the vertical rotating shaft and the blade to the horizontal rotating shaft of the bevel gear provided on the sliding body. Even when the position is displaced, the driving force can be transmitted. As a result, the driving force from the driving source can be used as power for forming the opening of the existing pipe line regardless of the feed displacement of the sliding body. Therefore, the existing pipe line is utilized by using a small space in the horizontal direction. A branch opening to the horizontal circumferential surface can be formed.
[Brief description of the drawings]
FIG. 1 is a diagram showing a configuration of a branch construction apparatus according to an example according to an embodiment of the present invention.
FIG. 2 is a view showing an aspect of a branching section construction apparatus shown in FIG.
FIG. 3 is a view for explaining processing after the formation of a branch opening by the branch portion construction apparatus shown in FIG. 1;
FIG. 4 is a diagram showing a state in which a branch opening is constructed on a vertical circumferential surface of an existing pipe line. FIG. 5 is a diagram showing a state in which a branch opening is constructed on a horizontal circumferential surface of the existing pipe line.
6 is a diagram for explaining the advantage of the branch opening construction shown in FIG. 5. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Branch part construction apparatus 2 Base 4 Slide body 5 Power transmission conversion part 6 Gear 6A which makes one side of bevel gear 7 Vertical rotation shaft 7 Gear 7A which makes the other side of bevel gear 7 Horizontal rotation shaft 8 Operation member 8A Oscillation Foot pedal 8B as operation part Sliding drive part A Existing pipe line S1 Spindle SP Coil spring

Claims (3)

既設管路の水平方向周面に分岐部を形成するための分岐部施工装置であって、
既設管路の側方に設置される基台と、
上記基台に対して水平方向に摺動可能に設けられ、垂直方向に設置された駆動源からの駆動力を水平方向に変換して上記既設管路の水平方向周面に対向する刃物に伝達可能な動力伝達変換部を有する摺動体と、
上記基台に対して縦方向で揺動可能に設けられ、揺動端側の最端部に位置する揺動操作部が設けられると共に該最端部に至る途中に上記摺動体と当接可能な摺動駆動部が設けられている操作部材とを備え、
上記操作部材を揺動させることにより上記摺動体を上記既設配管に向けて摺動させ上記動力伝達変換部に装備された刃物を駆動しながら上記既設管路の水平方向周面に向けて進行させて上記既設配管の側面を水平方向に穿孔可能にしたことを特徴とする分岐部施工装置。
A bifurcation construction device for forming a bifurcation on the circumferential surface of an existing pipeline,
A base installed on the side of the existing pipeline;
It is slidable in the horizontal direction with respect to the base, converts the driving force from the driving source installed in the vertical direction to the horizontal direction and transmits it to the blade facing the horizontal circumferential surface of the existing pipe line A sliding body having a possible power transmission conversion unit;
It is provided so as to be able to swing in the vertical direction with respect to the base, and a swing operation portion located at the extreme end on the swing end side is provided and can be brought into contact with the sliding body on the way to the extreme end An operation member provided with a sliding drive unit ,
By swinging the operation member, the sliding body is slid toward the existing pipe and is driven toward the horizontal circumferential surface of the existing pipe line while driving the blade equipped in the power transmission conversion unit. bifurcation construction apparatus being characterized in that to allow drilling the sides of the existing pipe in the horizontal direction Te.
請求項1記載の分岐部施工装置において、上記摺動体に有する動力伝達変換部には、直角方向で噛み合う傘歯車が設けられ、垂直方向に回転軸を有する歯車には駆動源が、水平方向に回転軸を有する歯車にはドリルなどの刃物がそれぞれ連結されていることを特徴とする分岐部施工装置。  2. The branch part construction apparatus according to claim 1, wherein the power transmission conversion unit included in the sliding body is provided with a bevel gear meshing at a right angle, a gear having a rotation shaft in a vertical direction has a drive source in a horizontal direction. A branch construction apparatus, wherein a cutting tool such as a drill is connected to a gear having a rotating shaft. 請求項1または2記載の分岐部施工装置において、上記操作部材における揺動端側の最端部が足踏みペダルで構成され、該最端部に至る途中に位置する前記摺動駆動部は、該操作部材の揺動に連動して上記摺動体を押圧駆動可能であり、上記足踏みペダルが踏み込まれることにより上記摺動体を上記既設管路の水平方向周面に向けて摺動可能にしたことを特徴とする分岐部施工装置。In the branch unit construction system according to claim 1 or 2, wherein the outermost end of the oscillating end side of the operating member is constituted by a foot pedal, the sliding drive portion located way to the outermost end, the in conjunction with the swinging of the operating member is capable of pressing drive the sliding body, that the sliding body by the foot pedal is depressed and can slide toward the horizontal peripheral surface of the existing pipe line Characteristic branching section construction equipment.
JP2001226124A 2001-07-26 2001-07-26 Branch construction equipment Expired - Fee Related JP4321979B2 (en)

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JP2012082876A (en) * 2010-10-08 2012-04-26 Kubota Corp Pipe body, piping passage, and method of constructing the piping passage

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