JP4314485B2 - Electric wire replacement device - Google Patents

Electric wire replacement device Download PDF

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JP4314485B2
JP4314485B2 JP2005046313A JP2005046313A JP4314485B2 JP 4314485 B2 JP4314485 B2 JP 4314485B2 JP 2005046313 A JP2005046313 A JP 2005046313A JP 2005046313 A JP2005046313 A JP 2005046313A JP 4314485 B2 JP4314485 B2 JP 4314485B2
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electric wire
gold wheel
frame
wire
gold
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JP2006238535A (en
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賢治 工藤
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Tokyo Electric Power Co Inc
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Tokyo Electric Power Co Inc
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Description

本発明は、複数の鉄塔間に架設されている既設の電線(送電線)を新設電線Qに張り替える際に、電線(或いは、金車やロープ等を含む)同士の衝突、混触等を確実に防止すると共に、先端部にクランプ部Sを備えた新設電線Qが下側に位置する金車を通過する過程において、金車と新設電線Qが強く接して金車に対して新設電線Qの進行方向へ強い押圧力が生じることを解消し、また、下側に位置する金車を新設電線Qのクランプ部Sが通過するときに、上側に位置する金車を装着している既設電線Pに下向きの引っ張り力が生じ、その後にクランプ部Sが金車を通過してその引っ張り力の解放による既設電線Pの跳ね上がりを解消し、金車を通過する新設電線Qや金車を装着している既設電線Pに損傷が生じる事態の発生を確実に阻止した電線張替装置に関するものである。   In the present invention, when an existing electric wire (transmission line) installed between a plurality of steel towers is replaced with a new electric wire Q, the collision of electric wires (or gold wheels, ropes, etc.) between each other is ensured. In the process in which the new electric wire Q having the clamp portion S at the front end passes through the gold wheel located on the lower side, the gold wheel and the new electric wire Q are in strong contact with the gold wheel. It eliminates the occurrence of strong pressing force in the traveling direction, and when the clamp part S of the newly installed electric wire Q passes through the gold wheel located on the lower side, the existing electric wire P on which the gold wheel located on the upper side is mounted. A downward pulling force is generated, and then the clamp part S passes through the gold wheel to eliminate the jumping of the existing electric wire P due to the release of the pulling force, and a new electric wire Q or a gold wheel that passes through the gold wheel is mounted. To prevent the occurrence of damage to the existing electric wire P It relates wire Chokawa device.

従来より、電線(送電線)の張替工事に使用される電線張替装置として、種々の構成のものが提案されている。   Conventionally, the thing of various structures is proposed as an electric wire replacement apparatus used for the replacement work of an electric wire (transmission line).

例えば、図8に示すように、中央に曳行ロープRの止具103を有する連結ロープ100の両端にテーピングにより結び目106を形成し、それぞれの結び目106に略O型形状のカラビナ金具101を介して、電線(送電線)を掛架する金車102A,102Bを接続した電線張替装置がある。この電線張替装置は、装置全体で約1.5mから5m程度の長さに形成されている。   For example, as shown in FIG. 8, knots 106 are formed by taping at both ends of a connecting rope 100 having a stop 103 of the coasting rope R in the center, and a substantially O-shaped carabiner fitting 101 is connected to each knot 106. In addition, there is an electric wire replacement device in which gold wheels 102A and 102B for hanging electric wires (power transmission lines) are connected. This electric wire changing apparatus is formed in a length of about 1.5 m to 5 m as a whole.

この電線張替装置に用いられている曳行ロープRの止具103は、連結ロープ100の中央に配置され、側面に斜行状に切欠形成された曳行ロープR挿入用の溝部104を備えたロッド107と、当該溝部104を閉塞・開放するようにロッド107に沿ってねじ込まれた筒体105とから成る。そして、ロッド107の溝部104に曳行ロープRを接続する際は、筒体105を回転させてロッド107の溝部104を開放し、当該溝部104に曳行ロープRを挿入してから溝部104の開放端を閉塞する方向に筒体105を回転させる。   The anchor 103 of the coasting rope R used in this electric wire spanning device is disposed at the center of the connecting rope 100 and has a rod 107 provided with a groove portion 104 for inserting the coasting rope R formed in a skewed manner on the side surface. And a cylindrical body 105 screwed along the rod 107 so as to close and open the groove 104. When connecting the coasting rope R to the groove portion 104 of the rod 107, the cylindrical body 105 is rotated to open the groove portion 104 of the rod 107, and after inserting the coasting rope R into the groove portion 104, the open end of the groove portion 104 is opened. The cylindrical body 105 is rotated in the direction of closing.

このように構成された電線張替装置を、鉄塔間の電線(送電線)に沿って約20mから30m間隔毎に配置することで、電線(送電線)の張替工事が実施される。例えば、図9に示すように、電線張替装置を既設電線Pに沿って配置展開するために、夫々の電線張替装置の溝部104に曳行ロープRを接続し、上側の金車102Aを既設電線Pに装着する。   By arranging the wire repositioning device configured as described above at intervals of about 20 m to 30 m along the wires (power transmission lines) between the steel towers, the wire reshaping work is performed. For example, as shown in FIG. 9, in order to arrange and deploy the wire replacement device along the existing electric wire P, the coasting rope R is connected to the groove portion 104 of each wire replacement device, and the upper gold wheel 102A is installed. Attach to the electric wire P.

また、下側の金車102Bに張替用のロープを通し、ワイヤーWを接続してロープを巻き取る。そして、ワイヤーWにクランプ部Sを介して新設電線Qを接続し、ワイヤーWを巻き取る。   Further, a rope for replacement is passed through the lower gold wheel 102B, the wire W is connected, and the rope is wound up. And the newly established electric wire Q is connected to the wire W via the clamp part S, and the wire W is wound up.

そして、既設電線Pを弛緩させ、新設電線Qを緊張させることで、上下を反転させて電線を張り替える。   Then, the existing electric wire P is relaxed and the new electric wire Q is tensioned, so that the electric wire is replaced by reversing the upper and lower sides.

この他にも、電線(送電線)の張替工事に使用される電線張替装置としては、例えば、特許文献1に開示されているように、金車(大)102Aと金車(小)102Aaを枠体201Aに配置し、同様に、金車(大)102Bと金車(小)102Bbを枠体201Bに配置し、上方の枠体201Aと下方の枠体201Bを接続金具108を介して一体的に連結したものが提案されている。   In addition to this, as an electric wire replacement device used for electric wire (transmission line) replacement work, for example, as disclosed in Patent Document 1, a gold wheel (large) 102A and a gold wheel (small) 102Aa is arranged on the frame body 201A, similarly, the gold wheel (large) 102B and the gold wheel (small) 102Bb are arranged on the frame body 201B, and the upper frame body 201A and the lower frame body 201B are connected to each other via the connection fitting 108. Have been proposed to be integrated together.

また、特許文献2に開示されているように、金車を配置した上方の枠体と、金車を配置した下方の枠体を、金属性の環状部を介して一体的に連結したものが提案されている。
特開平6−225420号公報 特開2002−315122号公報
Moreover, as disclosed in Patent Document 2, an upper frame body in which a gold wheel is disposed and a lower frame body in which a gold wheel is disposed are integrally connected via a metallic annular portion. Proposed.
JP-A-6-225420 JP 2002-315122 A

しかしながら、図8に示す従来の電線張替装置は、連結ロープ100の両端に金車102A,102Bが接続されて、全体で約1.5mから5m程度の長さに形成されているため、装置全体の重量が大きくなり、しかも、構成の複雑な多くの部分を手作業で作ることから、作業性が悪く、また、装置自体の撤去にも多くの労力を必要としていた。   However, since the conventional wire reversing device shown in FIG. 8 is formed to have a total length of about 1.5 m to 5 m with the gold wheels 102A and 102B connected to both ends of the connecting rope 100, The overall weight is increased, and many parts of the structure are manually made. Therefore, workability is poor, and much effort is required to remove the device itself.

さらに、資機材保管場所から工事箇所までの運搬費が相応にかかると共に、保管数量や種類も多くなるため、保管場所・点検費用・点検期間等がそれ相当に必要となっていた。   In addition, the transportation cost from the equipment storage location to the construction site is correspondingly high, and the quantity and type of storage are increased, so that the storage location, inspection cost, inspection period, etc. are considerably required.

また、図8に示す電線張替装置を電線(送電線)に取り付けると、鉄塔間に架設されている電線(送電線)の張力が増加するため、工事中においては、電線(送電線)と鉄塔に作用する力が、それぞれ設定された許容強度範囲内に留める必要がある。このため、鉄塔間に架設されている既設電線Pの張力を、工事前に予め緩めてから工事を実施する必要がある。   In addition, if the wire replacement device shown in FIG. 8 is attached to an electric wire (transmission line), the tension of the electric wire (transmission line) installed between steel towers increases. The force acting on the steel tower needs to be kept within the set allowable strength range. For this reason, it is necessary to carry out the work after relaxing the tension of the existing electric wires P installed between the steel towers before the work.

その結果、鉄塔間における新設電線Qの空中における弛みが大きくなり、作業中に電線(送電線)の位置が大きく垂れ下がってしまう事態が生じていた。従って、風の影響を一層受け易くなり、風が吹くと電線(送電線)は大きく横揺れして、近くに障害物や充電部があると衝突事故や感電事故が発生する虞れがあり非常に危険であった。また、風の強さによっては、電線(送電線)の横揺れ防止措置を施したり、作業自体を一時中断しなければならなかった。   As a result, the slack in the air of the new electric wire Q between the steel towers became large, and the situation where the position of the electric wire (transmission line) drooped greatly during the work occurred. Therefore, it becomes more susceptible to the influence of the wind, and when the wind blows, the electric wire (transmission line) shakes greatly, and if there are obstacles or charged parts nearby, there is a possibility that a collision accident or an electric shock accident may occur. It was dangerous. In addition, depending on the strength of the wind, it was necessary to take measures to prevent the electric wire (transmission line) from rolling and to temporarily suspend the work.

さらに、図8に示す電線張替装置は、所定の長さの連結ロープ100を使用していることから、既設電線Pと新設電線Qを上下に反転させる作業中に、当該連結ロープ100が金車102A,102B部分に引っ掛かることがあり、そのような事態が生じたときには、作業を中断して引っ掛かった連結ロープ100を金車102A,102B部分から取り外す作業が必要であった。また、既設電線Pと新設電線Qが交差してしまうこともあり、電線(送電線)同士が接触することで、電線(送電線)の表面が損傷してしまう虞れもあった。   Furthermore, since the wire replacement device shown in FIG. 8 uses the connecting rope 100 having a predetermined length, the connecting rope 100 is made of gold during the work of inverting the existing electric wire P and the new electric wire Q up and down. When such a situation occurs, it is necessary to suspend the work and remove the hooked rope 100 from the gold wheels 102A and 102B. Moreover, the existing electric wire P and the newly installed electric wire Q may cross | intersect, and there existed a possibility that the surface of an electric wire (power transmission line) might be damaged when electric wires (power transmission line) contact.

一方、特許文献1・2に開示されている電線張替装置は、工事中における金車や電線(送電線)に作用する様々な方向の力、例えば、先端部にクランプ部Sを備えた新設電線Qが下側に位置する金車を通過する過程において、金車と新設電線Qが強く接して金車に対して新設電線Qの進行方向へ強い押圧力が生じること、また、下側に位置する金車を新設電線Qのクランプ部Sが通過するときに、上側に位置する金車を装着している既設電線Pに下向きの引っ張り力が生じ、その後にクランプ部Sが金車を通過してその引っ張り力の解放による既設電線Pの跳ね上がりが生じて、金車を通過する新設電線Qや金車を装着している既設電線Pに損傷が生じる危険性があった。   On the other hand, the wire replacement device disclosed in Patent Documents 1 and 2 is a new installation with a clamp portion S at the tip, for example, forces in various directions acting on a gold wheel or electric wire (power transmission line) during construction. In the process in which the electric wire Q passes through the gold wheel located on the lower side, the gold wheel and the new electric wire Q are in strong contact with each other and a strong pressing force is generated in the traveling direction of the new electric wire Q against the gold wheel. When the clamp part S of the new electric wire Q passes through the position of the gold wheel, a downward pulling force is generated in the existing electric wire P on which the gold wheel located on the upper side is mounted, and then the clamp part S passes through the gold wheel. Then, the existing electric wire P jumps up due to the release of the pulling force, and there is a risk that the new electric wire Q passing through the gold wheel or the existing electric wire P equipped with the gold wheel may be damaged.

例えば、図10(a)に示すように、下側の金車102Bに新設電線Qのクランプ部Sが到達し、金車102Bが新設電線Qの進行方向に押し出されながらクランプ部Sが金車102Bに乗り上げる荷重によって、電線張替装置の全体が傾斜した状態となる。すると、クランプ部Sの荷重が金車102Bに集中的に掛かって電線張替装置自体が強制的に下方へ引っ張られるため、上側に位置して金車102Aを装着している既設電線Pが下方側へ撓曲した状態となる。   For example, as shown in FIG. 10 (a), the clamp portion S of the new wire Q reaches the lower gold wheel 102B, and the clamp portion S is moved to the gold wheel while the gold wheel 102B is pushed out in the traveling direction of the new wire Q. Due to the load that rides on 102B, the whole of the electric wire replacement device is inclined. Then, since the load of the clamp part S is concentrated on the gold wheel 102B and the wire replacement device itself is forcibly pulled downward, the existing electric wire P mounted on the gold wheel 102A located on the upper side is moved downward. It will be in the state bent to the side.

そして、クランプ部Sの全体が金車102Bを通過すると、図10(b)に示すように、新設電線Qの進行方向に押し出されていた金車102Bが瞬時に元の位置に戻り、金車102Bに対する荷重が解放されて、電線張替装置自体が上方側へバウンドし、バウンド後に電線張替装置は下方に落ちる状態となる。このようなバウンド現象により金車102Bと、金車102Bを通過している新設電線Qが強く衝突するため、新設電線Qが損傷し、電線(送電線)としての機能が低下する危険性があった。   Then, when the entire clamp portion S passes through the gold wheel 102B, as shown in FIG. 10 (b), the gold wheel 102B that has been pushed out in the traveling direction of the newly installed electric wire Q instantaneously returns to the original position, The load on 102B is released, and the wire repositioning device itself bounces upward. After bouncing, the wire repositioning device falls downward. Due to such a bounce phenomenon, the gold wheel 102B and the new electric wire Q passing through the gold wheel 102B collide strongly, so that there is a risk that the new electric wire Q is damaged and the function as the electric wire (transmission line) is lowered. It was.

さらに、図10(b)に示すように、金車102Bが瞬時に元の位置に戻ったときに金車102Bと新設電線Qが擦られながら強く衝突するため、新設電線Qが損傷することもあった。加えて、バウンド現象による強い落下衝撃によって、全荷重が掛かる金車102Aを装着している上側の既設電線Pも損傷する危険性があった。   Further, as shown in FIG. 10 (b), when the gold wheel 102B instantaneously returns to the original position, the gold wheel 102B and the new electric wire Q collide strongly while being rubbed, so that the new electric wire Q may be damaged. there were. In addition, there is a risk of damaging the existing electric wire P on the upper side where the gold wheel 102A to which a full load is applied is caused by a strong drop impact due to the bounce phenomenon.

また、安全性の面においても、このような連結ロープ100を使用しない電線張替装置は、一般に使用されていないのが実情であった。   Moreover, also in terms of safety, the actual situation is that such an electric wire replacement device that does not use the connecting rope 100 is not generally used.

そこで、本発明は如上のような従来存した諸事情に鑑み創出されたもので、複数の鉄塔間に架設されている既設の電線(送電線)を新設電線Qに張り替える際に、電線(或いは、金車やロープ等を含む)同士の衝突、混触等を確実に防止すると共に、先端部にクランプ部Sを備えた新設電線Qが下側に位置する金車を通過する過程において、金車と新設電線Qが強く接して金車に対して新設電線Qの進行方向へ強い押圧力が生じることを解消し、また、下側に位置する金車を新設電線Qのクランプ部Sが通過するときに、上側に位置する金車を装着している既設電線Pに下向きの引っ張り力が生じ、その後にクランプ部Sが金車を通過してその引っ張り力の解放による既設電線Pの跳ね上がりを解消し、金車を通過する新設電線Qや金車を装着している既設電線Pに損傷が生じる事態の発生を確実に阻止した電線張替装置を提供することを目的とする。   Therefore, the present invention was created in view of the existing circumstances as described above. When replacing an existing electric wire (transmission line) installed between a plurality of steel towers with a new electric wire Q, an electric wire ( In the process in which a new electric wire Q having a clamp portion S at the tip portion passes through a gold wheel located on the lower side is reliably prevented. The car and the new electric wire Q are in strong contact with each other, eliminating the strong pressing force in the direction of travel of the new electric wire Q against the gold wheel, and the clamp part S of the new electric wire Q passes through the lower gold wheel. When a pulling force is generated downward on the existing electric wire P on which the gold wheel located on the upper side is mounted, the clamp portion S passes through the gold wheel and the existing electric wire P jumps up due to the release of the pulling force. Eliminate and install a new electric wire Q or gold car that passes through the gold car And to provide an electric wire Chokawa apparatus reliably prevent the existing wire P which has the occurrence of a situation where damage occurs to.

本発明は、複数の鉄塔間に架設されている既設電線を新設電線に張り替えるために使用される電線張替装置であって、連結体の両端に、枠体を介して電線掛架用の金車を取り付け、連結体は、両端にボール状の支承孔部を備え、ボール部と軸部から成るボール軸のボール部を連結体の支承孔部に嵌合させ、連結体の両端から突出しているボール軸の軸部に、金車を支持する枠体を取り付けると共に、金車を支持する枠体と連結体の間に、若干の隙間を備えていることで、金車を支持する枠体を連結体に対して傾動可能に取り付けたことで、上述した課題を解決した。 The present invention is an electric wire replacement device used to replace an existing electric wire installed between a plurality of steel towers with a new electric wire, and is used for attaching an electric wire to both ends of a connecting body via a frame. A gold wheel is attached, and the connecting body is provided with ball-shaped support holes at both ends. A frame that supports the gold wheel by attaching a frame body that supports the gold wheel to the shaft portion of the ball shaft that has a slight gap between the frame body that supports the gold wheel and the connecting body. The above-mentioned problem has been solved by attaching the body so as to be tiltable with respect to the coupling body .

また、連結体に取り付けた金車は、既設電線や新設電線の前後方向に傾動可能であることで、同じく上述した課題を解決した。   Moreover, the gold wheel attached to the connection body can be tilted in the front-rear direction of the existing electric wire and the new electric wire, thereby solving the above-described problem.

さらに、連結体に取り付けた金車は、連結体に対して回転可能であることで、同じく上述した課題を解決した。   Furthermore, since the gold wheel attached to the connecting body is rotatable with respect to the connecting body, the above-described problem has been solved.

加えて、枠体の端部に孔部を設け、連結体から突出しているボール軸の軸部を枠体の孔部に挿入し、軸部にナットを螺合させて金車を支持する枠体を連結体に取り付けたことで、同じく上述した課題を解決した。   In addition, a frame that supports the gold wheel by providing a hole at the end of the frame, inserting the shaft portion of the ball shaft protruding from the coupling body into the hole of the frame, and screwing a nut into the shaft portion. By attaching the body to the connecting body, the above-mentioned problem was solved.

この他、連結体は、周面に曳行ロープを挿入する溝部が設けられ、連結体に沿ってのねじ込み高さを変えることにより溝部を閉塞・開放するねじ筒体による止具を備えたことで、同じく上述した課題を解決した。 In addition, the connecting body is provided with a grooved portion for inserting the coasting rope on the peripheral surface, and provided with a stopper with a screw cylinder that closes and opens the grooved portion by changing the screwing height along the connecting body. The problem described above has also been solved.

また、曳行ロープを挿入する溝部は、連結体の周面に斜行状に設けられていることで、同じく上述した課題を解決した。   Moreover, the groove | channel part which inserts a coasting rope solved the problem mentioned above similarly by being provided in the slanting form in the surrounding surface of the coupling body.

さらに、電線張替装置は、その長さが約40cmに形成されていることで、同じく上述した課題を解決した。   Furthermore, the electric wire replacement device is formed to have a length of about 40 cm, thereby solving the above-described problem.

本発明によれば、連結体の両端に取り付けた両金車間の距離を短くすることで、電線張替装置の小型化と軽量化を実現し、鉄塔や地上における作業性を飛躍的に向上させている。   According to the present invention, the distance between the two metal wheels attached to both ends of the connecting body is shortened, thereby realizing a reduction in the size and weight of the wire replacement device, and dramatically improving workability on the steel tower and the ground. ing.

具体的には、電線張替装置の軽量化を実現することで、工事前に鉄塔間に架設している電線(送電線)の張力を弛める度合いが少なくてすみ、電線(送電線)に大きな横揺れが生じる原因となる風の影響を受けにくいものとなる。また、従来のように、連結ロープを用いて両金車を連結していないため、既設電線と新設電線の上下の反転作業中に、当該連結ロープが金車部分に引っ掛かることもない。さらに、電線張替装置の両金車間の距離が短いため、既設電線と新設電線が交差することもない。   Specifically, by reducing the weight of the wire replacement device, it is possible to reduce the degree of tension of the electric wires (transmission lines) installed between the steel towers before construction, and to increase the electric wires (transmission lines). It becomes difficult to be affected by the wind that causes rolling. Further, since both the gold wheels are not connected using the connecting rope as in the prior art, the connecting rope is not caught on the gold wheel portion during the upside down operation of the existing electric wire and the new electric wire. In addition, since the distance between the two gold wheels of the wire replacement device is short, the existing electric wire and the new electric wire do not cross each other.

さらに、先端部にクランプ部を備えた新設電線が下側に位置する金車を通過する過程において、金車と新設電線が強く接して金車に対して新設電線の進行方向へ強い押圧力が生じることを解消し、また、下側に位置する金車を新設電線のクランプ部が通過するときに、上側に位置する金車を装着している既設電線に下向きの引っ張り力が生じ、その後にクランプ部が金車を通過してその引っ張り力の解放による既設電線の跳ね上がりを解消し、金車を通過する新設電線や金車を装着している既設電線に損傷が生じる事態の発生を確実に阻止している。   Furthermore, in the process in which a new electric wire having a clamp at the tip passes through the gold wheel located below, the gold wheel and the new electric wire are in strong contact with each other, and a strong pressing force is applied to the gold wheel in the direction of travel of the new electric wire. In addition, when the clamp part of the new electric wire passes through the gold wheel located on the lower side, a downward pulling force is generated on the existing electric wire equipped with the gold wheel located on the upper side. Eliminates the jumping of the existing wire due to the release of its pulling force when the clamp passes through the gold wheel, ensuring that the new wire passing through the gold wheel and the existing wire with the gold wheel are damaged Blocking.

これらは、連結体の両端に、枠体を介して電線掛架用の金車を、連結体に対して傾動可能に取り付けたことからもたらされる効果である。連結体に取り付けた金車は、既設電線や新設電線の前後方向に傾動可能であることから、例えば、クランプ部を備えた新設電線が金車を通過する際に、金車に対して大きな荷重が作用しても、滑らかな緩衝動作を確保して、新設電線等の損傷を回避しているのである。   These are the effects brought about by attaching the wire wheels for hanging electric wires to both ends of the connecting body through the frame so as to be tiltable with respect to the connecting body. Since the gold wheel attached to the connecting body can tilt in the front-rear direction of the existing electric wire or the new electric wire, for example, when the new electric wire with a clamp portion passes through the gold wheel, a large load is applied to the gold wheel. Even if this works, a smooth buffering operation is ensured and damage to newly installed electric wires and the like is avoided.

例えば、電線張替作業におけるクランプ部通過時に、下側の金車に作用する荷重により下側の金車を支持している枠体が新設電線の進行方向に若干傾動し、荷重が効率良く吸収・緩和される。従って、工事中において電線(送電線)に損傷を与える危険性を大幅に軽減できる。   For example, when passing through the clamp part during wire replacement work, the frame that supports the lower gold wheel slightly tilts in the direction of travel of the new electric wire due to the load acting on the lower gold wheel, and the load is absorbed efficiently.・ Relieved. Therefore, the risk of damaging the electric wire (transmission line) during construction can be greatly reduced.

一方、クランプ部が金車を通過してしまうと、下側の金車を支持している枠体は元の位置に復帰するが、クランプ部通過時の荷重が枠体の傾動によりそもそも緩衝されていることから、この復帰動作においても荷重が極めて小さいものとなり、加えて、その小さい荷重も電線張替装置が一層吸収・緩和するため、装置全体のバウンド現象を最小限に抑えることができる。   On the other hand, when the clamp part passes the gold wheel, the frame supporting the lower gold wheel returns to its original position, but the load when passing the clamp part is originally buffered by the tilting of the frame. For this reason, the load is extremely small even in this return operation, and in addition, the small amount of load is absorbed and alleviated by the electric wire replacement device, so that the bounce phenomenon of the entire device can be minimized.

また、連結体に取り付けた金車は、左右方向にも傾動可能であることから、例えば、鉄塔の腕金から50m程度離れた位置に設置された電線張替装置において、電線張替装置が垂直ではなく、若干斜めになった状態であっても、新設電線や既設電線が金車に適切に当接して、金車を通過する新設電線や金車を装着している既設電線に損傷が生じる事態の発生を確実に阻止している。   In addition, since the gold wheel attached to the connecting body can tilt in the left-right direction, for example, in the wire switching device installed at a position about 50 m away from the armrest of the steel tower, the wire switching device is vertical. Rather, even if it is in a slightly slanted state, the new electric wire or the existing electric wire will contact the gold wheel appropriately, and the new electric wire passing through the gold wheel or the existing electric wire equipped with the gold wheel will be damaged. The occurrence of the situation is surely prevented.

さらに、連結体に取り付けた金車は、連結体に対して回転可能であることから、例えば、異なる張力が作用している新設電線や既設電線が風等の影響を受け、個々の電線が予想しない動きをした場合であっても、滑らかな緩衝動作を確保できる。   Furthermore, since the gold wheel attached to the connection body can rotate with respect to the connection body, for example, new electric wires and existing electric wires with different tensions are affected by wind, etc. Even when the movement is not performed, a smooth buffering operation can be secured.

このように、連結体に取り付けた金車が、前後・左右のあらゆる方向に傾動可能であり、且つ回転可能であることから、電線張替装置の使い勝手が良くなると共に、電線(送電線)のあらゆる方向の動きに対応した滑らかな緩衝動作を確保して、新設電線等の損傷を回避しているのである。   In this way, the gold wheel attached to the coupling body can be tilted in all directions, front and rear, left and right, and can be rotated, so that the usability of the electric wire switching device is improved and the electric wire (transmission line) is improved. The smooth shock absorbing operation corresponding to the movement in every direction is ensured, and the damage to the newly installed electric wire or the like is avoided.

また、従来のように20mから30m間隔で電線張替装置を電線(送電線)に設置した場合に較べ、装置自体の軽量化・短縮化によりこれを40mから60m間隔で配置・展開することが可能となり、鉄塔間の電線(送電線)に掛かる全体の重量を大幅に軽減できる。そのため、既設電線の張力を大きく緩めることなく作業を行うことができる。また、作業時における新設電線の地上からの位置を、高く維持することができる。さらに、風による影響を受けにくくなり、電線(送電線)の横揺れ量も軽減され、作業性を大幅に向上できる。   In addition, compared to the conventional case where the wire replacement device is installed on the electric wire (transmission line) at intervals of 20 to 30 m, it can be arranged and deployed at intervals of 40 to 60 m by reducing the weight and shortening of the device itself. It becomes possible, and the whole weight concerning the electric wire (transmission line) between steel towers can be reduced significantly. Therefore, the work can be performed without greatly reducing the tension of the existing electric wire. Moreover, the position from the ground of the new electric wire at the time of work can be maintained highly. Furthermore, it becomes difficult to be affected by the wind, the amount of rolling of the electric wire (transmission line) is reduced, and workability can be greatly improved.

そして、コストダウン効果としては、電線(送電線)の下部交差箇所において、他工作物等との離隔を確保する措置を省略したり、防護用足場を設置する作業を省略できる。また、4回線以上の電線(送電線)において、上回線の電線張替工事を行うに際し、下回線との離隔を容易に確保でき、また、工事箇所近くの電線(送電線)における活線での作業が容易に行える。さらに、装置全体の軽量化と小型化により、装置自体の運搬費と点検・保管の管理費が軽減できる。   And as a cost reduction effect, the operation | work which ensures the separation from another workpiece | work etc. can be abbreviate | omitted in the lower crossing location of an electric wire (power transmission line), or the operation | work which installs a protection scaffold can be abbreviate | omitted. In addition, in the case of 4 or more wires (transmission lines), it is possible to easily secure the separation from the lower line when the upper line is replaced, and the live lines near the construction site (transmission lines) Can be done easily. Furthermore, the weight and size of the entire device can be reduced, so that the transportation cost of the device itself and the inspection and storage management cost can be reduced.

この他、電線張替装置の作成と当該電線張替装置の電線(送電線)への取り付けに際し、従来は装置の構成連結部が多いことから、装置を現場別に地上で作成し、完成した装置を重機を使用して鉄塔上に持ち上げて電線(送電線)に取り付けていたが、本発明により装置全体が小型になり、装置の重量も大幅に軽減されたことにより、作業員の地上における作成作業が不要となり、鉄塔上のみの作業で済むものとなって、電線張替工事を効率的に実施して、工期の短縮も図れる。   In addition, since there are many component connection parts in the past when creating the wire re-spanning device and attaching the wire re-sending device to the wire (transmission line), the device was created on the ground for each site and completed. The equipment was lifted onto a steel tower using heavy equipment and attached to a power line (transmission line). By the present invention, the entire equipment was reduced in size and the weight of the equipment was greatly reduced. This eliminates the need for work and requires only work on the steel tower, enabling efficient wire replacement work and shortening the work period.

また、連結体は、両端にボール状の支承孔部を備え、ボール部と軸部から成るボール軸のボール部を連結体の支承孔部に嵌合させ、連結体の両端から突出しているボール軸の軸部に、金車を支持する枠体を取り付けたことから、軸部を介して枠体の様々な動きを実現し、種々の荷重を効率良く吸収・緩和している。   Further, the connecting body has ball-shaped support hole portions at both ends, and a ball projecting from both ends of the connection body by fitting the ball portion of the ball shaft composed of the ball portion and the shaft portion into the support hole portion of the connection body. Since the frame body supporting the gold wheel is attached to the shaft portion of the shaft, various movements of the frame body are realized via the shaft portion, and various loads are efficiently absorbed and relaxed.

さらに、枠体の端部に孔部を設け、連結体から突出しているボール軸の軸部を枠体の孔部に挿入し、軸部にナットを螺合させて金車を支持する枠体を連結体に取り付けたことから、金車に作用する強い荷重や、上下方向の跳ね上がり等を吸収して緩和させる程度について、自由に調節することができる。   Further, the frame body is provided with a hole at the end of the frame body, the shaft portion of the ball shaft protruding from the coupling body is inserted into the hole portion of the frame body, and a nut is screwed into the shaft portion to support the metal wheel. Since it is attached to the connecting body, it is possible to freely adjust the degree of absorbing and relaxing the strong load acting on the gold wheel, the vertical jump and the like.

また、金車を支持する枠体と連結体の間に、若干の隙間を備えていることから、枠体における滑らかな動きを確保している。   Further, since a slight gap is provided between the frame body that supports the gold wheel and the coupling body, smooth movement in the frame body is ensured.

加えて、連結体は、周面に曳行ロープを挿入する溝部が設けられ、この溝部を閉塞・開放する止具を備えていることから、溝部に挿入した曳行ロープを簡単に固定できる。   In addition, since the connecting body is provided with a groove portion for inserting the coasting rope on the peripheral surface and is provided with a stopper for closing and opening the groove portion, the coasting rope inserted into the groove portion can be easily fixed.

また、曳行ロープを挿入する溝部は、連結体の周面に斜行状に設けられているので、溝部への曳行ロープの挿入が極めて容易である。   Moreover, since the groove part which inserts a coasting rope is provided in the slanting shape in the surrounding surface of a coupling body, insertion of a coasting rope to a groove part is very easy.

さらに、電線張替装置は、その長さが約40cmに形成され、小型であるため、鉄塔や地上における作業が極めて容易である。   Furthermore, since the length of the electric wire changing device is about 40 cm and is small, the work on the steel tower or the ground is extremely easy.

また、電線張替装置は、多導体の電線の張り替えに対応可能であるため、種々の電線張替工事を効率的に実施できる。   In addition, since the wire replacement device can cope with the replacement of multi-conductor electric wires, various wire replacement work can be performed efficiently.

以下に、本発明を実施するための最良の形態を、図面を参照して説明する。本発明は、図1・図2に示すように、複数の鉄塔間に架設されている既設電線Pを新設電線Qに張り替えるために使用される電線張替装置1であって、連結体2の両端に、電線掛架用の金車3,4を備えている。また、枠体5,6を介して、電線掛架用の金車3,4を、連結体2に対して傾動可能且つ回転可能に取り付けてある。この電線張替装置1は、使用目的に応じて部品を作成したり、複数の部品を連結する必要のない、小型軽量の一体化型の装置であり、約40cmの長さに形成されている。   The best mode for carrying out the present invention will be described below with reference to the drawings. As shown in FIGS. 1 and 2, the present invention is an electric wire replacement device 1 used to replace an existing electric wire P installed between a plurality of steel towers with a new electric wire Q. Are provided with wire wheels 3 and 4 for hanging electric wires. Further, the wire wheels 3 and 4 for hanging electric wires are attached to the connecting body 2 via the frames 5 and 6 so as to be tiltable and rotatable. This electric wire changing apparatus 1 is a small and light integrated apparatus that does not require the creation of parts according to the purpose of use or the connection of a plurality of parts, and is formed in a length of about 40 cm. .

連結体2は、図3・図4に示すように、両端にボール状の支承孔部7を備え、ボール部8と軸部9から成るボール軸10のボール部8を連結体2の支承孔部7に嵌合させ、連結体2の上端から突出しているボール軸10の軸部9に、金車3を支持する枠体5を取り付けている。   As shown in FIGS. 3 and 4, the connecting body 2 includes ball-shaped support hole portions 7 at both ends, and the ball portion 8 of the ball shaft 10 including the ball portion 8 and the shaft portion 9 is connected to the support hole of the connection body 2. The frame 5 that supports the gold wheel 3 is attached to the shaft portion 9 of the ball shaft 10 that is fitted to the portion 7 and protrudes from the upper end of the connecting body 2.

また、枠体5の端部に孔部11を設け、連結体2の上端から突出しているボール軸10の軸部9を枠体5の孔部11に挿入し、軸部9にナット12を螺合させて金車3を支持する枠体5を連結体2に取り付けている。   Also, a hole 11 is provided at the end of the frame 5, the shaft 9 of the ball shaft 10 protruding from the upper end of the connecting body 2 is inserted into the hole 11 of the frame 5, and a nut 12 is inserted into the shaft 9. A frame body 5 that is screwed to support the gold wheel 3 is attached to the connecting body 2.

具体的には、図3・図4に示すように、金車3を支持できるように略U字形状に形成された枠体5の根元端部を、所定の幅と高さを備えた略台形状に形成し、この略台形状部分の側面に矩形凹所13を設けてある。また、矩形凹所13の下面に、孔部11を設けてある。そして、矩形凹所13内の孔部11に、ボール軸10の軸部9を下方から挿入し、矩形凹所13内に突出した軸部9の先端にナット12を螺合させている。このとき、図1・図4・図7に示すように、金車3を支持する枠体5と連結体2の間に、若干の隙間Tが生じている。   Specifically, as shown in FIGS. 3 and 4, the base end portion of the frame body 5 formed in a substantially U shape so as to support the gold wheel 3 is provided with a predetermined width and height. It is formed in a trapezoidal shape, and a rectangular recess 13 is provided on the side surface of the substantially trapezoidal portion. A hole 11 is provided on the lower surface of the rectangular recess 13. Then, the shaft portion 9 of the ball shaft 10 is inserted into the hole portion 11 in the rectangular recess 13 from below, and the nut 12 is screwed to the tip of the shaft portion 9 protruding into the rectangular recess 13. At this time, as shown in FIGS. 1, 4, and 7, a slight gap T is generated between the frame body 5 that supports the gold wheel 3 and the connecting body 2.

この矩形凹所13内の孔部11、ナット12、ボール軸10、支承孔部7それぞれによる連結構造は、他方の金車4と枠体6、連結体2においても同様である。他方の金車4においては、矩形凹所13内の孔部11に、ボール軸10の軸部9を上方から挿入し、矩形凹所13内に突出した軸部9の先端にナット12を螺合させている。このとき、図1・図7に示すように、金車4を支持する枠体6と連結体2の間に、若干の隙間Tが生じている。   The connection structure by the hole 11, the nut 12, the ball shaft 10, and the support hole 7 in the rectangular recess 13 is the same in the other gold wheel 4, the frame body 6, and the connection body 2. In the other gold wheel 4, the shaft portion 9 of the ball shaft 10 is inserted into the hole 11 in the rectangular recess 13 from above, and the nut 12 is screwed to the tip of the shaft portion 9 protruding into the rectangular recess 13. It is combined. At this time, as shown in FIGS. 1 and 7, a slight gap T is generated between the frame body 6 that supports the gold wheel 4 and the connecting body 2.

また、金車3を回転可能に支持している枠体5は、図1・図4に示すように、2つの枠体片5A,5Bにより略U字形状に形成されている。2つの枠体片5A,5Bは、図1・図3に示すように、金車3を支持する軸14を介して、枠体片5A,5Bの夫々が回動可能に取り付けられている。そして、一方の枠体片5Aの根元部分において、矩形凹所13に向けて延設した垂直壁15にボルト軸16を突設し、このボルト軸16に所定の長さを有する筒状の締付用ナット17がねじ込まれている。   Further, the frame body 5 that rotatably supports the gold wheel 3 is formed in a substantially U shape by two frame body pieces 5A and 5B, as shown in FIGS. As shown in FIGS. 1 and 3, the two frame body pieces 5 </ b> A and 5 </ b> B are rotatably attached to the frame body pieces 5 </ b> A and 5 </ b> B via a shaft 14 that supports the gold wheel 3. A bolt shaft 16 projects from a vertical wall 15 extending toward the rectangular recess 13 at the base portion of one frame piece 5A, and a cylindrical fastening member having a predetermined length is provided on the bolt shaft 16. Attaching nut 17 is screwed.

そして、他方の枠体片5Bの根元部分に形成されたフック溝18をボルト軸16に嵌め込んで、締付用ナット17を締め付けるのである。フック溝18は、枠体片5Aの垂直壁15に当接する垂直板19に設けられており、枠体片5Aの垂直壁15と枠体片5Bの垂直板19を当接させて、締付用ナット17により枠体片5Aの垂直壁15と枠体片5Bの垂直板19を固定するのである。このとき、2つの枠体片5A,5Bの内側面に、ゴムやプラスチック等の保護部材を配置しておくことで、新設電線Qや既設電線Pに損傷が生じる事態の発生をより確実に阻止できる。尚、金車4を回転可能に支持している枠体6においても、2つの枠体片による同様の回動構造、固定構造を採用している。   Then, the hook groove 18 formed in the base portion of the other frame piece 5B is fitted into the bolt shaft 16 to tighten the tightening nut 17. The hook groove 18 is provided in the vertical plate 19 that contacts the vertical wall 15 of the frame piece 5A, and the vertical wall 15 of the frame piece 5A and the vertical plate 19 of the frame piece 5B are brought into contact with each other and tightened. The vertical wall 15 of the frame piece 5A and the vertical plate 19 of the frame piece 5B are fixed by the nut 17. At this time, by arranging protective members such as rubber and plastic on the inner side surfaces of the two frame pieces 5A and 5B, it is possible to more reliably prevent occurrence of damage to the new electric wire Q and the existing electric wire P. it can. In addition, also in the frame body 6 which supports the gold wheel 4 rotatably, the same rotation structure and fixing structure by two frame body pieces are adopted.

連結体2は、周面に曳行ロープRを挿入する溝部20が設けられ、この溝部20を閉塞・開放する止具21を備えている。曳行ロープRを挿入する溝部20は、連結体2の周面に斜行状に設けられている。止具21は、連結体2に沿ってねじ込まれた筒体であり、筒体のねじ込み高さを変えることにより、溝部20を閉塞・開放するものである。   The connecting body 2 is provided with a groove portion 20 for inserting the coasting rope R on the peripheral surface, and is provided with a stopper 21 for closing and opening the groove portion 20. The groove portion 20 into which the coasting rope R is inserted is provided on the peripheral surface of the connecting body 2 in an oblique manner. The stopper 21 is a cylindrical body screwed along the connecting body 2, and closes and opens the groove 20 by changing the screwing height of the cylindrical body.

電線張替装置1における止具21の他の構成としては、図5に示すように、反転式高張力用の連結体2に、曳行ロープRを接続するために、揺動可能な開閉レバー22が取り付けられている。開閉レバー22は、U字溝24を備えて連結体2に対して回動可能に取り付けた回動部23に固定されている。そして、連結体2に設けた曳行ロープRを挿入するU字型の溝部25と、開閉レバー22を固定している回動部23に設けたU字溝24が合致した開放状態で曳行ロープRが挿入される。その後、開閉レバー22を略90度回動させることで、回動部23が回転して、曳行ロープRを挿入している溝部25が回動部23の周壁により閉塞されるようにしてある。   As another configuration of the stopper 21 in the electric wire switching device 1, as shown in FIG. 5, a swingable opening / closing lever 22 for connecting the coasting rope R to the reversible high-tension coupling body 2. Is attached. The opening / closing lever 22 is fixed to a rotating portion 23 that has a U-shaped groove 24 and is attached to the connecting body 2 so as to be rotatable. Then, the coasting rope R is in an open state in which the U-shaped groove portion 25 into which the coasting rope R provided in the connecting body 2 is inserted and the U-shaped groove 24 provided in the rotating portion 23 that fixes the opening / closing lever 22 are matched. Is inserted. Thereafter, the opening / closing lever 22 is rotated approximately 90 degrees to rotate the rotating portion 23 so that the groove portion 25 into which the coasting rope R is inserted is closed by the peripheral wall of the rotating portion 23.

また、図6に示すように、連結体2の支承孔部7に保持されているボール軸10の軸部9を細く形成することで、連結体2に対し、金車3,4を支持している枠体5,6の傾動を、90度の角度にわたって自在に行えるようにしてある。   Further, as shown in FIG. 6, by forming the shaft portion 9 of the ball shaft 10 held in the support hole portion 7 of the connecting body 2 to be thin, the gold wheels 3 and 4 are supported with respect to the connecting body 2. The frame members 5 and 6 can be tilted freely over an angle of 90 degrees.

次に、以上のように構成された本発明の最良の形態について、使用・動作の一例を説明する。   Next, an example of use and operation of the best mode of the present invention configured as described above will be described.

まず、電線張替装置1を既設電線Pに沿って配置展開するために、夫々の電線張替装置1の溝部20に曳行ロープRを接続し、上側の金車3に既設電線Pを装着する。また、下側の金車4に既設電線Pを装着する。   First, in order to arrange and deploy the electric wire replacement device 1 along the existing electric wires P, the coasting rope R is connected to the groove portion 20 of each electric wire replacement device 1, and the existing electric wires P are attached to the upper gold wheel 3. . Further, the existing electric wire P is attached to the lower gold wheel 4.

既設電線Pへの金車3の装着は、枠体片5Aが備えている締付用ナット17を弛めて、他方の枠体片5Bを回動させて枠体片5A,5Bを開放状態とし、枠体片5A,5Bの開放部分を既設電線Pへ引っ掛けて金車3に既設電線Pを下方から当接させ、既設電線Pにより金車3を下方から支持した状態にする。その後、枠体片5Bを回動させて枠体片5A,5Bを閉鎖状態とし、締付用ナット17を締め付けて枠体片5Aと片枠体5Bを固定する。   The gold wheel 3 is attached to the existing electric wire P by loosening the fastening nut 17 provided on the frame piece 5A and rotating the other frame piece 5B to open the frame pieces 5A and 5B. Then, the open portions of the frame pieces 5A and 5B are hooked on the existing electric wire P so that the existing electric wire P is brought into contact with the gold wheel 3 from below, and the gold wheel 3 is supported from below by the existing electric wire P. Thereafter, the frame piece 5B is rotated to close the frame pieces 5A and 5B, and the fastening nut 17 is tightened to fix the frame piece 5A and the single frame 5B.

連結体2に曳行ロープRを接続する際は、止具21を回転させて溝部20を開放し、当該溝部20に曳行ロープRを挿入してから、溝部20の開放部分を閉塞する方向に止具21を回転させることで、曳行ロープRを連結体2に固定する。   When connecting the coasting rope R to the connector 2, the stopper 21 is rotated to open the groove portion 20, and after inserting the coasting rope R into the groove portion 20, stop the opening portion of the groove portion 20 in the closing direction. The coasting rope R is fixed to the coupling body 2 by rotating the tool 21.

そして、下側の金車4に装着されている既設電線PにワイヤーWとクランプ部Sを介して新設電線Qを接続する。この状態で、クランプ部Sを備えた新設電線Qを金車4で支持しながら新設電線Qが金車4上を通過するのである。   Then, the new electric wire Q is connected to the existing electric wire P mounted on the lower gold wheel 4 via the wire W and the clamp portion S. In this state, the new electric wire Q passes over the gold wheel 4 while the new wire Q provided with the clamp portion S is supported by the gold wheel 4.

このとき、図7(a)に示すように、下側の金車4に作用するクランプ部Sの荷重により下側の金車4を支持している枠体6が新設電線Qの進行方向に若干傾動し、金車4に作用する荷重が効率良く吸収・緩和される。従って、工事中において電線(送電線)に損傷を与える危険性を大幅に軽減できる。   At this time, as shown in FIG. 7 (a), the frame body 6 supporting the lower gold wheel 4 by the load of the clamp portion S acting on the lower gold wheel 4 moves in the traveling direction of the new electric wire Q. The load acting on the gold wheel 4 is slightly absorbed and relaxed with a slight tilt. Therefore, the risk of damaging the electric wire (transmission line) during construction can be greatly reduced.

一方、図7(b)に示すように、クランプ部Sが金車4を通過してしまうと、下側の金車4を支持している枠体6は元の位置に復帰するが、クランプ部S通過時の荷重が枠体6の傾動によりそもそも緩衝されていることから、この復帰動作においても荷重が極めて小さいものとなり、加えて、その小さい荷重も電線張替装置1が一層吸収・緩和するため、装置全体のバウンド現象を最小限に抑えることができる。   On the other hand, as shown in FIG. 7 (b), when the clamp part S passes through the gold wheel 4, the frame body 6 supporting the lower gold wheel 4 returns to its original position. Since the load when passing through the portion S is originally buffered by the tilting of the frame body 6, the load is extremely small even in this return operation, and in addition, the wire realignment device 1 further absorbs and relaxes the small load. Therefore, the bounce phenomenon of the entire apparatus can be minimized.

そして、既設電線Pを弛緩させ、新設電線Qを緊張させてから、電線(送電線)の上下を反転させ、下側に移動した既設電線Pを新設電線Qに張り替えるのである。   Then, after the existing electric wire P is relaxed and the new electric wire Q is tensioned, the electric wire (transmission line) is turned upside down, and the existing electric wire P moved downward is replaced with the new electric wire Q.

本発明は、複数の鉄塔間に架設されている既設電線Pを新設電線Qに張り替える電線張替装置1として、種々の工事に広く用いることができる。   INDUSTRIAL APPLICABILITY The present invention can be widely used for various constructions as an electric wire replacement apparatus 1 for replacing an existing electric wire P installed between a plurality of steel towers with a new electric wire Q.

電線張替装置を電線(送電線)に取り付けた使用状態を示す斜視図である。It is a perspective view which shows the use condition which attached the electric wire replacement apparatus to the electric wire (power transmission line). 下側の金車を回転させた状態を示す斜視図である。It is a perspective view which shows the state which rotated the lower gold wheel. 枠体を構成する両枠体片を固定する状態、連結体の溝部に曳行ロープを挿入する状態を示す分解斜視図である。It is a disassembled perspective view which shows the state which fixes the both frame piece which comprises a frame, and the state which inserts a coasting rope in the groove part of a connection body. 枠体を構成する両枠体片を固定した状態、連結体の溝部に曳行ロープを挿入した状態を示す斜視図である。It is a perspective view which shows the state which fixed both the frame piece which comprises a frame, and the state which inserted the coasting rope in the groove part of the connection body. 開閉レバーを備えた電線張替装置の構成を示す正面図である。It is a front view which shows the structure of the electric wire spanning apparatus provided with the opening / closing lever. 金車を支持する枠体を90度の角度で傾動できる電線張替装置の構成を示す一部拡大の側面図である。It is a partially expanded side view which shows the structure of the electric wire replacement apparatus which can tilt the frame which supports a gold wheel at an angle of 90 degree | times. 電線張替装置の動作を示すもので、(a)は電線張替作業におけるクランプ部の通過時に下側の金車に作用する荷重により下側の金車を支持している枠体が新設電線の進行方向に傾動している状態を示す側面図、(b)はクランプ部の通過後に下側の金車を支持している枠体が元の位置に復帰している状態を示す側面図である。The operation of the electric wire changing device is shown. (A) is a new electric wire with a frame body supporting the lower gold wheel by a load acting on the lower gold wheel when passing the clamp part in the electric wire changing work. The side view which shows the state which is tilting in the advancing direction of (b), (b) is a side view which shows the state which the frame which supports the lower gold wheel returns to the original position after passing a clamp part. is there. 従来の電線張替装置の構成を示す一部拡大の正面図である。It is a partially expanded front view which shows the structure of the conventional electric wire spanning apparatus. 従来の電線張替工法を例示する概略図である。It is the schematic which illustrates the conventional electric wire stretching method. 従来の電線張替装置の構成を例示するもので、(a)は電線張替作業におけるクランプ部の通過時に金車に作用する荷重により電線張替装置が下方側へ引っ張られた状態を示す側面図、(b)はクランプ部の通過後に金車に作用する荷重が解放され、電線張替装置が上方側へバウンドする状態を示す側面図である。The structure of the conventional electric wire reversing apparatus is illustrated, (a) is the side which shows the state by which the electric wire rewiring apparatus was pulled below with the load which acts on a money wheel at the time of the clamp part passage in electric wire rewiring work FIG. 4B is a side view showing a state in which the load acting on the gold wheel is released after passing through the clamp portion and the electric wire changing device bounces upward.

符号の説明Explanation of symbols

P…既設電線 Q…新設電線
R…曳行ロープ W…ワイヤー
S…クランプ部 T…隙間
1…電線張替装置 2…連結体
3,4…金車 5,6…枠体
5A,5B…枠体片
7…支承孔部 8…ボール部
9…軸部 10…ボール軸
11…孔部 12…ナット
13…矩形凹所 14…軸
15…垂直壁 16…ボルト軸
17…締付用ナット 18…フック溝
19…垂直板 20…溝部
21…止具 22…開閉レバー
23…回動部 24…U字溝
25…溝部
100…連結ロープ 101…カラビナ金具
102A,102Aa…金車 102B,102Bb…金車
103…止具 104…溝部
105…筒体 106…結び目
107…ロッド 108…接続金具
201A,201B…枠体
P ... Existing electric wire Q ... New electric wire R ... Laying rope W ... Wire S ... Clamping part T ... Gap 1 ... Wire replacement device 2 ... Connector 3,4 ... Gold wheel 5,6 ... Frame 5A, 5B ... Frame Piece 7 ... Bearing hole portion 8 ... Ball portion 9 ... Shaft portion 10 ... Ball shaft 11 ... Hole portion 12 ... Nut 13 ... Rectangular recess 14 ... Shaft 15 ... Vertical wall 16 ... Bolt shaft 17 ... Tightening nut 18 ... Hook Groove 19 ... Vertical plate 20 ... Groove portion 21 ... Stopper 22 ... Opening / closing lever 23 ... Turning portion 24 ... U-shaped groove 25 ... Groove portion 100 ... Connecting rope 101 ... Carabiner fittings 102A, 102Aa ... Gold wheel 102B, 102Bb ... Gold wheel 103 ... Stopper 104 ... Groove 105 ... Tube 106 ... Knot 107 ... Rod 108 ... Connection fitting 201A, 201B ... Frame

Claims (7)

複数の鉄塔間に架設されている既設電線を新設電線に張り替えるために使用される電線張替装置であって、連結体の両端に、枠体を介して電線掛架用の金車を取り付け、連結体は、両端にボール状の支承孔部を備え、ボール部と軸部から成るボール軸のボール部を連結体の支承孔部に嵌合させ、連結体の両端から突出しているボール軸の軸部に、金車を支持する枠体を取り付けると共に、金車を支持する枠体と連結体の間に、若干の隙間を備えていることで、金車を支持する枠体を連結体に対して傾動可能に取り付けたことを特徴とする電線張替装置。 This is a wire replacement device used to replace existing wires installed between multiple steel towers with newly installed wires. At both ends of the connecting body, a gold wheel for wire suspension is attached via a frame. The connecting body has ball-shaped support hole portions at both ends, the ball shaft of the ball shaft composed of the ball portion and the shaft portion is fitted into the support hole portions of the connecting body, and protrudes from both ends of the connection body. A frame body that supports the gold wheel is attached to the shaft portion of the frame, and a slight gap is provided between the frame body that supports the gold wheel and the connection body, so that the frame body that supports the gold wheel is connected to the connection body. An electric wire changing device characterized in that it can be tilted with respect to the wire. 連結体に取り付けた金車は、既設電線や新設電線の前後方向に傾動可能である請求項1に記載の電線張替装置。   The electric wire replacement apparatus according to claim 1, wherein the gold wheel attached to the coupling body is tiltable in the front-rear direction of the existing electric wire or the new electric wire. 連結体に取り付けた金車は、連結体に対して回転可能である請求項1または2に記載の電線張替装置。   The electric wire replacement apparatus according to claim 1 or 2, wherein the gold wheel attached to the connection body is rotatable with respect to the connection body. 枠体の端部に孔部を設け、連結体から突出しているボール軸の軸部を枠体の孔部に挿入し、軸部にナットを螺合させて金車を支持する枠体を連結体に取り付けた請求項1乃至3のいずれかに記載の電線張替装置。 A hole is provided at the end of the frame body, the shaft portion of the ball shaft protruding from the connection body is inserted into the hole portion of the frame body, and a nut is screwed into the shaft portion to connect the frame body supporting the metal wheel. The electric wire replacement apparatus according to any one of claims 1 to 3, which is attached to a body. 連結体は、周面に曳行ロープを挿入する溝部が設けられ、連結体に沿ってのねじ込み高さを変えることにより溝部を閉塞・開放するねじ筒体による止具を備えた請求項1乃至4のいずれかに記載の電線張替装置。 The connecting body includes a stopper provided with a screw cylinder body that is provided with a groove portion for inserting a coasting rope on a peripheral surface, and that closes and opens the groove portion by changing a screwing height along the connecting body. The electric wire replacement apparatus in any one of. 曳行ロープを挿入する溝部は、連結体の周面に斜行状に設けられている請求項5に記載の電線張替装置。 6. The electric wire replacement device according to claim 5 , wherein the groove portion into which the laminating rope is inserted is provided in a slanting manner on the peripheral surface of the coupling body. 電線張替装置は、その長さが約40cmに形成されている請求項1乃至6のいずれかに記載の電線張替装置。 The electric wire changing apparatus according to any one of claims 1 to 6 , wherein the electric wire changing apparatus has a length of about 40 cm.
JP2005046313A 2005-02-22 2005-02-22 Electric wire replacement device Expired - Fee Related JP4314485B2 (en)

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JP5065814B2 (en) * 2007-09-04 2012-11-07 株式会社Tlc Electric wire replacement method
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