JPS5843373Y2 - Connection fittings for wire extension - Google Patents
Connection fittings for wire extensionInfo
- Publication number
- JPS5843373Y2 JPS5843373Y2 JP8990779U JP8990779U JPS5843373Y2 JP S5843373 Y2 JPS5843373 Y2 JP S5843373Y2 JP 8990779 U JP8990779 U JP 8990779U JP 8990779 U JP8990779 U JP 8990779U JP S5843373 Y2 JPS5843373 Y2 JP S5843373Y2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- wire extension
- connection fittings
- metal wheel
- extension
- 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
Links
Landscapes
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Description
【考案の詳細な説明】
本考案は架空送電線を比較的径の小さい金車を用いて延
線する場合に、きわめて円滑に金車通過せしめ得る改良
された延線用連結金具に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved connecting fitting for connecting an overhead power transmission line that allows the wire to pass through the wheel very smoothly when the wire is extended using a wheel with a relatively small diameter.
近年の架空送電線の犬サイズ化にともない、これを延線
する場合に、比較的低張力下で延線することができるい
わゆる吊金工法なるものが実用に供されるようになった
。BACKGROUND OF THE INVENTION In recent years, as overhead power transmission lines have become dog-sized, a so-called sling method has come into practical use that allows the line to be extended under relatively low tension.
これは主索ワイヤの下に連続して多数の吊金車を展開せ
しめ、この吊金車上に電線を延線し引き渡して行くもの
であるが、それぞれの吊金車の径は小さく、電線の延線
端部をこのような小径の吊金車上につ捷<通過せしめる
ために、当該電線端部と引きワイヤの間に延線用連結金
具が取付けられて延線が行なわれる。This involves deploying a number of hanging wheels in succession under the main rope wire, and extending and handing over the electric wire onto these hanging wheels, but the diameter of each hanging wheel is small, and the wire In order to pass the end of the wire over such a small-diameter hanging wheel, a wire-running connecting fitting is attached between the end of the wire and the pulling wire, and the wire is stretched.
従来のこの種連結金具は、第3図に示すように通常の平
行うレビスリンク(あるいは直角クレビスリンク)18
,19,20,21・・・を結合ピン22.22・・・
で連結し、これを電線2に圧着した延線クランプ1と引
きワイヤ9の間に図のように介在連結したものであり、
ピン22の結合部ではそれぞれ90度以上に屈曲が可能
な状態で、必要以上に大きな屈曲性を有していた。A conventional connection fitting of this kind is a normal flat clevis link (or right angle clevis link) 18, as shown in Fig. 3.
, 19, 20, 21... with connecting pins 22, 22...
This is interposed and connected between the wire extension clamp 1 crimped to the electric wire 2 and the pull wire 9 as shown in the figure.
The connecting portions of the pins 22 could each be bent by 90 degrees or more, which was greater than necessary.
このため、このような連結金具が前記吊金車のような小
径の金車の上に乗った場合には当該連結金具が大きくへ
の字状に折れ曲ることとなり、この状態で金車上を通過
せしめられるためその引取り抵抗が意外に大きく、種々
問題があった。For this reason, when such a connecting metal fitting is placed on a small-diameter metal wheel such as the above-mentioned hanging metal wheel, the connecting metal fitting will be bent into a large slanted shape, and in this state, it will not sit on the metal wheel. , the pulling resistance was surprisingly large, which caused various problems.
本考案は、かかる問題点を解決し、とくに小径の金車を
通過せしめる場合にきわめて円滑な金車通過を可能にで
きた延線用連結金具を提供しようとするものであって、
その要旨は、延線の先端側すなわち引きワイヤ側にいく
に従って、順次曲率半径が小となるような曲げ特性をも
たせたことにある。The present invention aims to solve these problems and provide a connecting fitting for wire extension that allows extremely smooth passage of the metal wheel, especially when passing a small diameter metal wheel.
The gist of this is to provide a bending characteristic in which the radius of curvature gradually decreases toward the leading end of the wire, that is, toward the drawn wire.
延線端部が金車上を通過する様相について観察すると、
該延線端部は自重によりカテナリーを生じ、当該カテナ
リーに沿って延線端部が下方から金車の上に乗り上げる
。Observing how the end of the wire passes over the metal wheel,
The end of the wire forms a catenary due to its own weight, and the end of the wire rides on the metal wheel from below along the catenary.
この場合小さな曲率半径の部分から金車の上に乗り上げ
るようにすれば、金車の外周になじみやすく、−たん先
端が金車になじんで通過されれば、あとは惰性で通って
くれればいいこととなり、むしろ余り屈曲しては従来例
の如く通過抵抗が犬となる。In this case, if you ride on the metal wheel from a part with a small radius of curvature, it will easily fit in with the outer periphery of the metal wheel, and once the tip of the metal wheel blends in with the metal wheel and passes, the rest will pass by inertia. In fact, if it is bent too much, the passage resistance will be high as in the conventional example.
本考案はこのような知見に立ってなされたものであり、
その具体的な作用効果については以下に説明する実施例
により、一層間らかになるであろう。This invention was made based on this knowledge,
The specific effects will become clearer through the examples described below.
第1図は本考案に係る一つの実施例を示すものであり、
電線2に圧着された延線クランプ1(必要に応じ金車通
過型引留クランプを用いてもよい)に直角クレビス形の
連結ブロック3,4,5,6゜7・・・が図のように連
結されている。FIG. 1 shows one embodiment of the present invention,
Right-angled clevis-shaped connecting blocks 3, 4, 5, 6° 7, etc. are attached to the wire clamp 1 crimped to the wire 2 (a metal wheel passing type retaining clamp may be used if necessary) as shown in the figure. connected.
この個々の結合は、第2図に示すように例えばユニバー
サルフロック12の穴15 t 15 、・・・にクレ
ビスの結合穴14,14を介挿する結合ピン13,13
・・・をねじ込むことによって結合することができるが
、例えば第2図の直角クレビス10と11を連結した場
合には、直角クレビス11の端部16が直角クレビス1
0の溝縁17に突き当り、ある角度以上は屈曲できない
ように構威しである。As shown in FIG. 2, these individual connections are made by, for example, connecting pins 13, 13 that insert the connecting holes 14, 14 of the clevis into the holes 15 t 15 , . . . of the universal flock 12.
For example, when right-angle clevises 10 and 11 in FIG. 2 are connected, the end 16 of right-angle clevis 11 is connected to
It abuts against the groove edge 17 of 0 and cannot be bent beyond a certain angle.
(これと直角方向への屈曲についても同様に一方の端部
が他方に突き当るようにすればよい)
第1図の場合に、屈曲角θ1 、θ2 、θ3 、・・
・θn−1についてはそれぞれ例えば10度程度に規制
し、個々の連結ブロックの長さzl )12 +t3
、t4 、・・・tnを順次引きワイヤ側にいくに従
って短かくなるようにすれば、連結金具100全体は、
延線クランプ1側では曲率半径が大きく、引きワイヤ9
側にいくに従って曲率半径が小となるように構成するこ
とができる。(For bending in the direction perpendicular to this, it is sufficient to similarly make one end abut against the other.) In the case of Fig. 1, the bending angles θ1, θ2, θ3,...
・θn-1 is restricted to about 10 degrees, for example, and the length of each connected block is zl )12 +t3
, t4, . . . tn are sequentially drawn so that they become shorter toward the wire side, the entire connecting fitting 100 becomes:
The radius of curvature is large on the wire drawing clamp 1 side, and the pulling wire 9
It can be configured such that the radius of curvature decreases toward the side.
また、この場合側々のクレビスの長さを同じくし、個々
の屈曲角θを順次引きワイヤ9側にいくに従って大きく
するように規制しても同様の結果となるし、前者と後者
とを組み合せてもよい。Furthermore, in this case, the same result can be obtained even if the lengths of the clevises on both sides are made the same and the individual bending angles θ are sequentially increased toward the pull wire 9 side. It's okay.
上記はあく昔で実施例であり、個々の連結の態様や形状
、数などは適宜選択できるものであることは勿論である
し、適用される金車もひとり吊金車に限らず、通常の金
車に対しても適用できるものであることはいう1でもな
い。The above is just an example, and it goes without saying that the mode, shape, number, etc. of each individual connection can be selected as appropriate. It goes without saying that this can also be applied to gold wheels.
以上、本考案に係る連結金具をもってすれば、きわめて
円滑な延線が可能となり、送電線の犬サイズ化の進展し
ている今日、斯業上に与える効果は太きい。As described above, the connecting fitting according to the present invention enables extremely smooth line extension, and has a great effect on the industry in this day and age, when power transmission lines are becoming more and more dog-sized.
第1図は、本考案に係る連結金具の一実施例を示す見取
図、第2図は個々の連結の一実施例を示す分解見取図、
第3図は従来の連結金具を示す見取図である。
1・・・・・・延線クランプ又は引留クランプ、2・・
・・・・電線、9・・・・・・引きワイヤ、100・・
・・・・連結金具。FIG. 1 is a sketch showing an embodiment of the connecting fitting according to the present invention, FIG. 2 is an exploded sketch showing an embodiment of the individual connections,
FIG. 3 is a sketch showing a conventional connecting fitting. 1...Wire extension clamp or retaining clamp, 2...
...Electric wire, 9...Pulling wire, 100...
...Connection fittings.
Claims (1)
連結金具をそれぞれが屈曲可能に連結せられてなる複数
個の連結ブロックにより構成し、各連結ブロックの曲率
半径が引きワイヤ側に行くほど順次重となるように構成
してなる延線用連結金具。The wire extension connecting fitting interposed and connected between the end of the electric wire and the pull wire is composed of a plurality of connecting blocks each of which is connected in a bendable manner, and the radius of curvature of each connecting block is on the pull wire side. A connecting fitting for wire extension that is constructed so that it becomes progressively heavier as it goes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8990779U JPS5843373Y2 (en) | 1979-06-29 | 1979-06-29 | Connection fittings for wire extension |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8990779U JPS5843373Y2 (en) | 1979-06-29 | 1979-06-29 | Connection fittings for wire extension |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS569818U JPS569818U (en) | 1981-01-28 |
JPS5843373Y2 true JPS5843373Y2 (en) | 1983-10-01 |
Family
ID=29323032
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8990779U Expired JPS5843373Y2 (en) | 1979-06-29 | 1979-06-29 | Connection fittings for wire extension |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5843373Y2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5995716U (en) * | 1982-12-20 | 1984-06-29 | 日立電線株式会社 | Auxiliary equipment for the end of power transmission lines |
-
1979
- 1979-06-29 JP JP8990779U patent/JPS5843373Y2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS569818U (en) | 1981-01-28 |
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