JP3229095B2 - Tension device - Google Patents
Tension deviceInfo
- Publication number
- JP3229095B2 JP3229095B2 JP31440693A JP31440693A JP3229095B2 JP 3229095 B2 JP3229095 B2 JP 3229095B2 JP 31440693 A JP31440693 A JP 31440693A JP 31440693 A JP31440693 A JP 31440693A JP 3229095 B2 JP3229095 B2 JP 3229095B2
- Authority
- JP
- Japan
- Prior art keywords
- wedge
- conductor
- clamp
- jumper wire
- conductors
- 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 - Lifetime
Links
Landscapes
- Suspension Of Electric Lines Or Cables (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は耐張装置に係り、特に、
一相当りの導体数が２導体で垂直に配列される、いわゆ
る垂直２導体用の耐張装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tension device, and more particularly to a tension device.
The present invention relates to a so-called vertical two-conductor tension device in which one or more conductors are vertically arranged with two conductors.
【０００２】[0002]
【従来の技術】近年、送電線の一相が２導体からなる場
合、特に送電線が市街地に配線されるときは、線下補償
費用を可能な限り安くするために、送電線の線下幅（地
役権設定幅）の小さい垂直配列が採用されるようになっ
てきている。2. Description of the Related Art In recent years, when one phase of a transmission line is composed of two conductors, particularly when the transmission line is laid in an urban area, the width of the transmission line under the line is set to be as low as possible. A vertical arrangement with a small (servation right setting width) has been adopted.
【０００３】例えば、送電電圧が高圧になると、２導体
を水平に配列したときの両導体の間隔は４００〜６００
ｍｍにも及ぶので、これを垂直に配列することによる線
下補償費用の低減効果は大きくなる。For example, when the transmission voltage becomes high, when two conductors are arranged horizontally, the distance between the two conductors is 400 to 600.
mm, the effect of reducing the under-line compensation cost by vertically arranging them vertically increases.
【０００４】ところで、従来の垂直配列の２導体用耐張
装置は、圧縮クランプが使用されている。したがって、
導体は、送電線鉄塔（以下、「鉄塔」という。）の箇所
で切断され、その切断個所に圧縮クランプを接続すると
ともに、がいし装置を介して鉄塔へ接続するようにして
いる。[0004] A conventional vertical tension device for two conductors uses a compression clamp. Therefore,
The conductor is cut at a power transmission tower (hereinafter, referred to as a “pylon”), and a compression clamp is connected to the cut location, and the conductor is connected to the pylon via an insulator.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上記従
来の耐張装置は、圧縮クランプが使用されるため、導体
が鉄塔個所で切断されて、圧縮クランプと圧縮により結
合されるが、その圧縮箇所で発熱するという不都合が生
じることがある。However, in the above-mentioned conventional tensioning device, since a compression clamp is used, the conductor is cut at a steel tower location and connected to the compression clamp by compression. In some cases, a problem of heat generation may occur.
【０００６】上述の不都合を防止するためには、片くさ
び型クランプあるいは両くさび型クランプを用いること
が考えられる。この様なくさび型クランプを用いると、
導体を切断することなく鉄塔に張設することができる。In order to prevent the above-mentioned inconvenience, it is conceivable to use a single wedge type clamp or a double wedge type clamp. With such a wedge clamp,
It can be installed on a steel tower without cutting the conductor.
【０００７】しかし、垂直２導体用の耐張装置は、単に
くさび型クランプを使用出来ない理由が存在している。
その一つの理由は、ジャンパ線を下方に引き出す場合、
上方に位置するくさび型クランプのジャンパ線受片が下
方に位置するくさび型クランプあるいは連結金具に接触
するからである。[0007] However, there is a reason that the tensioning device for two vertical conductors cannot simply use a wedge type clamp.
One reason is that if you pull the jumper line down,
This is because the jumper wire receiving piece of the wedge-type clamp located above contacts the wedge-type clamp or connection fitting located below.
【０００８】さらに、他の理由としては、近年、緊線工
法は緊線作業の容易なカムアロングレス工法、いわゆる
カマレス工法が採用されるようになってきているが、こ
の緊線時に、導体の捻回特性（１本の導体は、数本の線
条を寄り合わせて作られているので、この導体が緊張さ
れると、導体の軸心を中心にして回転する性質）によ
り、くさび型クランプが回転するので、ジャンパ線受片
をくさび型クランプ本体に取付けて緊線作業を行うと、
ジャンパ線受片が他方のくさび型クランプあるいは連結
金具に接触するからである。Another reason is that, in recent years, a cam-alongless construction method, which is easy to carry out, is used as the tensioning method. Due to the twisting characteristic (one conductor is made by bringing several filaments close to each other, when this conductor is tensioned, it rotates around the axis of the conductor), the wedge clamp When the tightening work is performed by attaching the jumper wire receiving piece to the wedge-type clamp body,
This is because the jumper wire receiving piece comes into contact with the other wedge-shaped clamp or the connection fitting.
【０００９】ところで、この緊線時の回転によるジャン
パ線受片の接触を防止するためには、緊線時にジャンパ
線受片を外しておくことが考えられている、しかし、図
７に示されるように、片くさび型クランプの場合は、導
体Ｌはクランプ本体３０に単一のくさび体３１でクラン
プされる関係上、クランプ力を高めるために、くさび体
３１とジャンパ線受片３２との間でも導体Ｌを挾持する
ようにしている。このためジャンパ線受片３２をクラン
プ本体３０から外してのカマレス工法の採用は不可能で
ある。したがって、片くさび型クランプを用いたときの
カマレス工法は、くさび体３１のジャンパ線受片３２を
取付けた状態で導体Ｌを挾持しておき、これに補助金具
３３を介して緊線用の金車３４を取付け、この金車３４
にワイヤＷを張設して行われる。By the way, in order to prevent the jumper wire receiving piece from contacting due to the rotation at the time of tightening, it is considered that the jumper wire receiving piece is removed at the time of tightening, however, as shown in FIG. As described above, in the case of the single wedge type clamp, since the conductor L is clamped to the clamp body 30 by the single wedge body 31, in order to increase the clamping force, the conductor L is placed between the wedge body 31 and the jumper wire receiving piece 32. However, the conductor L is sandwiched. For this reason, it is impossible to adopt the Kamares method in which the jumper wire receiving piece 32 is detached from the clamp body 30. Therefore, in the Kamares method using a one-wedge clamp, the conductor L is clamped while the jumper wire receiving piece 32 of the wedge body 31 is attached, and the conductor L is clamped to the conductor L via the auxiliary fitting 33. Attach the car 34, this gold wheel 34
Is carried out by stretching a wire W to the wire.
【００１０】また、耐張装置の緊線作業は、一般に、ク
ランプ本体の取付金具片の軸心方向と同一方向にワイヤ
を張設して行われるので、ワイヤの取込量（牽引量）が
大きくなったり、電線のクランプ位置が不確定になりや
すい欠点があった。[0010] Further, since the tensioning work of the tensioning device is generally performed by stretching the wire in the same direction as the axial direction of the mounting bracket of the clamp body, the amount of the wire taken in (the amount of pulling) is reduced. There is a disadvantage that the wire becomes large and the clamp position of the electric wire tends to be uncertain.
【００１１】本発明の実施例の説明時に用いる図６を参
照して、従来の緊線方法を説明すると、クランプ本体１
０ａ，１０ｂの取付片ロの先端部に、三日月状の金車取
付用金具２３を取付け、取付片ロの長手方向の軸心方向
とワイヤＷの牽引方向とを一致させているので、クラン
プ本体１０ａ，１０ｂをヨーク片２側に十分に引き寄せ
た後、バーニア金具３等を結合する必要があり、ワイヤ
Ｗの操作量が多くなって、緊線作業が面倒になる欠点が
あった。さらに、緊線作業時前後におけるクランプ本体
１０ａ，１０ｂとヨーク片２との間隔が大きく変化する
ために、導体Ｌ1 ，Ｌ2 のクランプ位置を決定するのが
難しくなる欠点があった。A conventional tightening method will be described with reference to FIG. 6 used in the description of the embodiment of the present invention.
A crescent-shaped wheel-attaching metal fitting 23 is attached to the tip of the mounting pieces 0a and 10b, and the axial direction of the mounting piece R in the longitudinal direction and the pulling direction of the wire W are aligned with each other. After sufficiently pulling the 10a and 10b toward the yoke piece 2, it is necessary to connect the vernier fitting 3 and the like, and the operation amount of the wire W increases, and there is a disadvantage that the tightening work becomes troublesome. Further, since the distance between the clamp bodies 10a and 10b and the yoke piece 2 before and after the tightening operation greatly changes, it is difficult to determine the clamp positions of the conductors L1 and L2.
【００１２】そこで、本発明は、ジャンパ線受片を外し
てカマレス工法が採用でき、しかも、そのジャンパ線受
片を取付けたときに、ジャンパ線の先端方向が、平面か
ら見て、導体の軸心方向から離れるように位置し、垂直
２導体用に好適な耐張装置を提供することを目的として
いる。Therefore, according to the present invention, the jumper wire receiving piece can be removed and the Kamares method can be adopted, and when the jumper wire receiving piece is mounted, the direction of the tip of the jumper wire can be changed from the plane of the conductor when viewed from a plane. An object of the present invention is to provide a tension device that is located away from the center and is suitable for two vertical conductors.
【００１３】[0013]
【課題を解決するための手段】本発明に係る耐張装置
は、上記目的を達成するために、一相当りの導体数が２
導体でそれら導体が垂直に配列されるときのそれら導体
を鉄塔に取付けるときに用いられる耐張装置であって、
前記導体の所定長さを対向させて挾んだ一対のくさび片
をテ−パ面を有するクランプ部に挿入して、その導体を
クランプする両くさび型クランプ本体と、その両くさび
型クランプ本体に着脱自在に設けられ、その両くさび型
クランプ本体から出てくるジャンパ線を受入れるジャン
パ線受片と、前記鉄塔に取付けられたがいし装置に設け
られた連結金具類と前記両くさび型クランプ本体との間
に設けられ、かつ、その連結金具への取付穴の軸心方向
とその両くさび型クランプ本体への取付穴の軸心方向と
のなす角度が、０°を越え９０°未満の所定の角度を有
する角度クレビス金具と、を有することを特徴としてい
る。SUMMARY OF THE INVENTION In order to achieve the above object, a tensioning device according to the present invention has an equivalent number of conductors of two.
A tension device used when attaching the conductors to a tower when the conductors are vertically arranged in the conductor,
A pair of wedge pieces sandwiching a predetermined length of the conductor so as to face each other are inserted into a clamp portion having a tapered surface, and the wedge-type clamp body for clamping the conductor and the wedge-type clamp body are clamped. A jumper wire receiving piece that is detachably provided and receives a jumper wire coming out of the double wedge-type clamp body, and a connecting metal fitting and the double wedge-type clamp body provided in an insulator attached to the steel tower. A predetermined angle of more than 0 ° and less than 90 °, wherein the angle between the axial direction of the mounting hole to the connection fitting and the axial direction of the mounting hole to both wedge clamp bodies is provided. And an angle clevis fitting having the following.
【００１４】[0014]
【作用】上記構成において、両くさび型クランプ本体
が、角度クレビス金具を介してがいし装置に取り付けら
れると、両くさび型クランプ本体は、角度クレビス金具
の角度分だけ回動する。したがって、その両くさび型ク
ランプ本体にジャンパ線受片が取付けられると、ジャン
パ線受片も回動した状態で取付けられる。In the above construction, when the two wedge-type clamp bodies are attached to the insulator device via the angle clevis fittings, the two wedge-type clamp bodies rotate by the angle of the angle clevis fittings. Therefore, when the jumper wire receiving piece is attached to the two wedge type clamp bodies, the jumper wire receiving piece is also attached in a rotated state.
【００１５】[0015]
【実施例】以下、本発明の実施例を図面に基づいて説明
する。図１は、一実施例に係る耐張装置を垂直２導体用
に適用したときのもので、同図(a) はその平面図、同図
(b) はその正面図である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a tension device according to one embodiment applied to two vertical conductors. FIG. 1 (a) is a plan view and FIG.
(b) is a front view thereof.
【００１６】鉄塔Ｔには、２連からなるがいし装置ａの
一端が金具１に接続されているとともに、そのがいし装
置ａの他端にはヨ−ク片２が接続されている。そして、
このヨ−ク片２の上，下には（図１(b) 参照）、両くさ
び型クランプ本体（以下、クランプ本体という）１０
ａ，１０ｂがバーニヤ金具（本発明の連結金具の一部に
該当している。）３，３を介して接続されるが、このバ
ーニヤ金具３，３とクランプ本体１０ａ，１０ｂの間に
は、本発明装置の特徴的構成要素の角度クレビス金具２
０，２０が介在されている。In the tower T, one end of a two-piece insulator device a is connected to the metal fitting 1, and a yoke piece 2 is connected to the other end of the insulator device a. And
Above and below this yoke piece 2 (see FIG. 1 (b)), a double wedge-shaped clamp body (hereinafter referred to as a clamp body) 10
a, 10b are connected via vernier fittings (corresponding to a part of the connecting fitting of the present invention) 3, 3, and between the vernier fittings 3, 3 and the clamp bodies 10a, 10b. Angle clevis fitting 2 as a characteristic component of the device of the present invention
0 and 20 are interposed.
【００１７】図２〜図５は、クランプ本体１０ａ，１０
ｂ及び角度クレビス金具２０の詳細を示すものであっ
て、図２はその平面図、図３はその正面図、図４は図２
のＡ−Ａ線拡大断面図及び図５は角度クレビス金具２０
の詳細図である。FIGS. 2 to 5 show the clamp bodies 10a and 10a.
2 and 3 show details of the angle clevis fitting 20, FIG. 2 is a plan view thereof, FIG. 3 is a front view thereof, and FIG.
5 is an enlarged sectional view taken along line AA of FIG.
FIG.
【００１８】クランプ本体１０ａ，１０ｂは、同一構成
であるので、ここでは上方に位置するクランプ本体１０
ａを例に説明する。クランプ部１１は、一対のクランプ
片１１ａ，１１ｂからなり、両クランプ片１１ａ，１１
ｂを合せたときの全体形状は、所定長さの直方体からな
り、各クランプ片１１ａ，１１ｂの一方の対面する側
（図示の例では上，下面側）は、先細りに形成され、つ
まりテーパ面に形成されている（図３参照）。Since the clamp bodies 10a and 10b have the same structure, the clamp body 10 located at the upper position is used here.
This will be described by taking a as an example. The clamp part 11 is composed of a pair of clamp pieces 11a and 11b.
The overall shape when b is combined is a rectangular parallelepiped having a predetermined length, and one facing side (upper and lower sides in the illustrated example) of each of the clamp pieces 11a and 11b is formed to be tapered, that is, a tapered surface. (See FIG. 3).
【００１９】各クランプ片１１ａ，１１ｂのテーパ面の
付されていない一方の面には、長手方向中心に沿って、
凹部１３がそれぞれ設けられている。この凹部１３の内
側は、クランプ片１１ａ，１１ｂと同様に、上，下面は
上記テーパ面に対応するように先細りに形成されている
とともに、そのテーパ面の付されている凹部１３の先端
部分は、互いに接近していて、凹条溝１４ａ，１４ｂが
それぞれ形成されている。On one surface of each of the clamp pieces 11a and 11b, which is not provided with a tapered surface, along the center in the longitudinal direction,
Recesses 13 are provided, respectively. Like the clamp pieces 11a and 11b, the upper and lower surfaces of the inside of the concave portion 13 are tapered so as to correspond to the above-mentioned tapered surface, and the tip of the concave portion 13 provided with the tapered surface is formed. , Are formed close to each other, and are formed with concave grooves 14a, 14b, respectively.
【００２０】くさび部１２は、一対のくさび片１２ａ，
１２ｂからなり、その一対のくさび片１２ａ，１２ｂを
導体Ｌ1 を介在させて重ね合わせた状態で上記凹部１３
に挿入できる大きさに形成されている。したがって、各
くさび片１２ａ，１２ｂの長手方向の一側面は導体Ｌ1
の横断面形状に合致した断面半円状の溝条１５ａ，１５
ｂがそれぞれ設けられているとともに、他側面の両側に
は上記凹条溝１４ａ，１４ｂに対応した突条１６ａ，１
６ｂがそれぞれ形成されている。そして、両突条１６
ａ，１６ａ、１６ｂ，１６ｂ間は、上記溝条１５ａ，１
５ｂと同じ曲面にそれぞれ形成されている。The wedge portion 12 includes a pair of wedge pieces 12a,
12b, the pair of wedge pieces 12a and 12b are superposed with the conductor L1 interposed therebetween, and
It is formed in such a size that it can be inserted into. Therefore, one side surface of each of the wedge pieces 12a and 12b in the longitudinal direction is the conductor L1.
Grooves 15a, 15 having a semicircular cross section conforming to the cross sectional shape of
b are provided, and on both sides of the other side surface, ridges 16a, 1 corresponding to the concave grooves 14a, 14b.
6b are respectively formed. And both ridges 16
a, 16a, 16b, 16b, the grooves 15a, 1
5b are formed on the same curved surface.
【００２１】上記構成の両くさび型クランプで導体Ｌ1
を挟持するには、取付片ロを送電線鉄塔側に接続し、導
体Ｌ1 を一対のくさび片１２ａ，１２ｂで挾んだ状態で
クランプ部１１の凹部１３に挿入すると、導体Ｌ1 が取
付片ロと反対側に引張られるに従って、くさび片１２
ａ，１２ｂはくさび効果を発揮し、導体Ｌ1 を保持する
ことができる。With the double wedge clamp having the above structure, the conductor L1
In order to sandwich the conductor L1, the conductor L1 is connected to the power transmission tower, and the conductor L1 is inserted into the recess 13 of the clamp portion 11 while being sandwiched between the pair of wedge pieces 12a and 12b. The wedge piece 12
a and 12b exert a wedge effect and can hold the conductor L1.
【００２２】そして、本実施例に係るクランプ本体１０
ａにおいては、対向するクランプ片１１ａ，１１ｂが従
来よりも離れており、また、くさび片１２ａ，１２ｂも
小さく形成できるので、全体の形状を小型化でき、した
がって軽量化することができる。The clamp body 10 according to this embodiment is
In a, the opposed clamp pieces 11a and 11b are farther apart than in the prior art, and the wedge pieces 12a and 12b can also be formed smaller, so that the overall shape can be reduced in size and hence the weight can be reduced.
【００２３】角度クレビス金具２０は、取付片ロの他端
部間に設けられた一対の取付穴の軸心方向が平行な周知
の普通型クレビス金具ハのクレビス部にボルト・ナット
により接続されている。そして、この角度クレビス金具
２０の取付片２０ａの取付穴２１の軸心方向と取付片２
０ｂの取付穴２２の軸心方向のなす角度が０°を越え９
０°未満の所定の角度θに保たれている。すなわち、角
度クレビス金具２０を普通型クレビス金具ハへ取付ける
ための取付穴２２の軸心方向と、バーニヤ金具３側へ取
付けるための取付穴２１の軸心方向となす角度θは、例
えば３０°の角度に構成されている（図５(b) 参照）。The angle clevis fitting 20 is connected to a clevis portion of a well-known ordinary clevis fitting C in which a pair of mounting holes provided between the other ends of the mounting pieces B are parallel to each other by bolts and nuts. I have. The axial direction of the mounting hole 21 of the mounting piece 20a of the angle clevis fitting 20 and the mounting piece 2
The angle of the mounting hole 22 of the mounting hole 22b in the axial center direction exceeds 0 ° and 9
It is kept at a predetermined angle θ of less than 0 °. That is, the angle θ between the axial direction of the mounting hole 22 for mounting the angle clevis fitting 20 to the normal type clevis fitting C and the axial direction of the mounting hole 21 for mounting to the vernier fitting 3 is, for example, 30 °. The angle is configured (see FIG. 5B).
【００２４】次に、図６を参照しながら、導体Ｌ1 ，Ｌ
2 の緊線作業について説明する。先ず、ジャンパ線受片
イ，イを外した両クランプ本体１０ａ，１０ｂを上述の
手法で各導体Ｌ1 ，Ｌ2 の所定の個所へそれぞれクラン
プする。もちろん、このクランプに際しては、導体Ｌ1
，Ｌ2 を緊線した際に生じるクランプ本体１０ａ，１
０ｂの回動を予め考慮して、クランプ本体１０ａ，１０
ｂの天地位置が定められている。Next, referring to FIG. 6, the conductors L1, L
The second task is explained. First, the two clamp bodies 10a and 10b, from which the jumper wire receiving pieces A and A have been removed, are clamped to predetermined positions of the conductors L1 and L2 by the above-described method. Of course, in this clamping, the conductor L1
, L2 are clamped and clamp bodies 10a, 1 are formed.
0b in advance, the clamp bodies 10a, 10b
The vertical position of b is determined.
【００２５】各クランプ本体１０ａ，１０ｂの取付片
ロ，ロに、三日月状の金車取付金具２３，２３を介して
金車２４ａ，２４ｃをそれぞれ取付けるとともに、ヨ−
ク片２の上部及び下方の導体Ｌ2 用のバーニヤ金具３の
ヨ−ク片３′に金車２４ｂ，２４ｄをそれぞれ取付け
る。そして、緊線作業当初は、各バーニヤ金具３，３
は、ボルト・ナット（図１(b) の黒塗りの穴に該当して
いる）を外してヨ−ク片２側に吊架しておく。Wheels 24a, 24c are mounted on the mounting pieces B, B of the clamp bodies 10a, 10b, respectively, via crescent-shaped wheel mounting brackets 23, 23, respectively.
Wheels 24b and 24d are attached to the yoke pieces 3 'of the vernier fitting 3 for the conductor L2 above and below the work piece 2, respectively. And, at the beginning of the tightening work, each vernier fitting 3,3
Is removed from the yoke 2 by removing the bolts and nuts (corresponding to the black holes in FIG. 1 (b)).
【００２６】上記２組の４個の金車２４ａ〜２４ｄのう
ち、金車２４ａ，２４ｂ及び金車２４ｃ，２４ｄ間にそ
れぞれワイヤＷを掛ける。この状態で各ワイヤＷの他端
部を図示しないウインチで牽引すると、各クランプ本体
１０ａ，１０ｂは、がいし装置ａ側に引き寄せられる。
各クランプ本体１０ａ，１０ｂが所定の位置まで引き寄
せられた時点で、バーニヤ金具３をボルト・ナットで結
合する。Of the two sets of four wheels 24a to 24d, wires W are respectively hung between the wheels 24a, 24b and the wheels 24c, 24d. In this state, when the other end of each wire W is pulled by a winch (not shown), each clamp body 10a, 10b is drawn toward the insulator device a.
When each of the clamp bodies 10a and 10b is drawn to a predetermined position, the vernier fitting 3 is connected with bolts and nuts.
【００２７】バーニヤ金具３，３の結合が終了したら、
金車取り付け金具２３，２３、各金車２４ａ〜２４ｄ及
びワイヤＷを外して緊線作業を終了する。After the vernier brackets 3 and 3 have been joined,
The metal fittings 23, 23, the metal wheels 24a to 24d, and the wire W are removed, and the tightening work is completed.
【００２８】さて、緊線作業が終了すると、各クランプ
本体１０ａ，１０ｂとバーニヤ金具３，３との間に角度
クレビス金具２０，２０がそれぞれ介在されているの
で、各クランプ本体１０ａ，１０ｂは角度クレビス金具
２０の角度分だけ回動される。したがって、この回動し
た状態でジャンパ線受片イ，イが取付けられると、図１
(a) の示すように、ジャンパ線受片イ，イの先端方向
は、平面から見て、各導体Ｌ1 ，Ｌ2 の方向と角度を有
することとなる。When the tightening operation is completed, the angle clevis fittings 20, 20 are interposed between the clamp bodies 10a, 10b and the vernier fittings 3, 3, respectively. The clevis is rotated by the angle of the clevis fitting 20. Therefore, when the jumper wire receiving pieces A and A are attached in this rotated state, FIG.
As shown in (a), the direction of the tip of the jumper wire receivers A, A has an angle with the direction of each conductor L1, L2 when viewed from a plane.
【００２９】以上のように、本実施例装置は、クランプ
本体１０ａ，１０ｂを用いているので、カマレス工法で
容易に緊線できるとともに、角度クレビス金具２０の作
用により、ジャンパ線受片イ，イの先端方向が上方から
見て導体Ｌ1 ，Ｌ2 の軸心方向から離れるようになるの
でジャンパ線Ｌ1 ′，Ｌ2 ′の引き出しが容易となる。
しかも、緊線時は、ジャンパ線受片イを取り外すことが
できるので、ジャンパ線受片イの接触事故を防止するこ
とができる。As described above, since the apparatus of this embodiment uses the clamp bodies 10a and 10b, it can be easily tightened by the Kamares method, and the action of the angle clevis fitting 20 allows the jumper wire receiving pieces A and A to be used. Is separated from the axial direction of the conductors L1 and L2 when viewed from above, so that the jumper lines L1 'and L2' can be easily pulled out.
In addition, since the jumper wire receiving piece a can be removed at the time of a tight line, a contact accident of the jumper wire receiving piece a can be prevented.
【００３０】なお、上述の実施例では、２導体が垂直に
配列される例を示したが、１導体であっても、ジャンパ
線受片イの先端方向が、平面から見て導体の軸心方向か
ら所定の角度を有して離れる方が好ましい場合に使用す
ることができる。In the above-described embodiment, an example in which two conductors are vertically arranged has been described. However, even when one conductor is used, the tip direction of the jumper wire receiving piece a is not equal to the axial center of the conductor when viewed from a plane. It can be used when it is preferable to leave at a predetermined angle from the direction.
【００３１】[0031]
【発明の効果】本発明に係る耐張装置は、一相当りの導
体数が２導体でそれら導体が垂直に配列されるときのそ
れら導体を鉄塔に取付けるときに用いられる耐張装置で
あって、前記導体の所定長さを対向させて挾んだ一対の
くさび片をテ−パ面を有するクランプ部に挿入して、そ
の導体をクランプする両くさび型クランプ本体と、その
両くさび型クランプ本体に着脱自在に設けられ、その両
くさび型クランプ本体から出てくるジャンパ線を受入れ
るジャンパ線受片と、前記鉄塔に取付けられたがいし装
置に設けられた連結金具類と前記両くさび型クランプ本
体との間に設けられ、かつ、その連結金具への取付穴の
軸心方向とその両くさび型クランプ本体への取付穴の軸
心方向とのなす角度が、０°を越え９０°未満の所定の
角度を有する角度クレビス金具とからなるので、耐張装
置が緊張されると、角度クレビス金具の角度分だけクラ
ンプ本体が回動できる。したがって、ジャンパ線受片の
先端方向が平面から見て、導体の軸心方向と角度を有す
ることができる。このため、本発明に係る耐張装置が垂
直２導体用に使用されたときは、カマレス工法で緊線で
き、またジャンパ線を容易に引き出すことが可能とな
る。加えて、緊線時には、ジャンパ線受片を外すことが
できるので、緊線作業時にジャンパ線受片の接触を未然
に防止することができる。The tension device according to the present invention is a tension device used for mounting the conductors to a steel tower when the number of conductors is equal to two and the conductors are vertically arranged. A wedge-shaped clamp body for clamping a conductor by inserting a pair of wedge pieces sandwiching a predetermined length of the conductor so as to face each other and clamping the conductor; And a jumper wire receiving piece for receiving a jumper wire coming out of the double wedge clamp body, connecting metal fittings and the double wedge clamp body provided in an insulator attached to the steel tower. The angle between the axial direction of the mounting hole to the connecting bracket and the axial direction of the mounting hole to both wedge clamp bodies is greater than 0 ° and less than 90 °. Angular angle with angle Since the tension body is made of a levis, the clamp body can rotate by the angle of the angle clevis when the tension device is tightened. Therefore, the tip direction of the jumper wire receiving piece can have an angle with the axial direction of the conductor when viewed from a plane. For this reason, when the tension apparatus according to the present invention is used for two vertical conductors, it can be tightened by the Kamares method, and the jumper wire can be easily pulled out. In addition, at the time of tightening, the jumper wire receiving piece can be removed, so that the contact of the jumper wire receiving piece at the time of the tightening work can be prevented.
【図１】本発明の一実施例装置を垂直２導体用に適用し
たときを示すものであって、同図(a) はその平面図、同
図(b) はその正面図である。FIGS. 1A and 1B show a case where an apparatus according to an embodiment of the present invention is applied to two vertical conductors. FIG. 1A is a plan view and FIG. 1B is a front view.
【図２】クランプ本体及び角度クレビス金具の詳細平面
図である。FIG. 2 is a detailed plan view of a clamp body and an angle clevis fitting.
【図３】図２の正面図である。FIG. 3 is a front view of FIG. 2;
【図４】図２のＡ−Ａ線拡大断面図である。FIG. 4 is an enlarged sectional view taken along line AA of FIG. 2;
【図５】角度クレビス金具の詳細図である。FIG. 5 is a detailed view of an angle clevis fitting.
【図６】垂直２導体用に適用したときの従来の緊線方法
を示す説明図である。FIG. 6 is an explanatory view showing a conventional tightening method when applied to two vertical conductors.
【図７】片くさび型クランプの正面図である。FIG. 7 is a front view of a single wedge type clamp.
２ ヨ−ク片（連結金具） ３ バーニヤ金具（連結金具） １０ａ，１０ｂ 両くさび型クランプ本体（クランプ
本体） １１ クランプ部 １２ａ，１２ｂ くさび片 ２０ 角度クレビス金具 ２４ａ〜２４ｄ 金車 Ｔ 送電線鉄塔（鉄塔） ａ がいし装置 Ｗ ワイヤ2 Yoke pieces (connecting fittings) 3 Vernier fittings (connecting fittings) 10a, 10b Double wedge-type clamp body (clamp body) 11 Clamp portions 12a, 12b Wedge piece 20 Angle clevis fittings 24a to 24d Iron wheel T Transmission wire tower ( Steel tower) a insulator W wire
───────────────────────────────────────────────────── フロントページの続き (72)発明者 鈴木 昌彦 愛知県南設楽郡鳳来町大野字奥林30番地 の１ (72)発明者 漢人 長雄 愛知県豊川市市田町御所ヶ谷津25番地 (58)調査した分野(Int.Cl.7，ＤＢ名) H02G 7/02 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Masahiko Suzuki 30-1 Okubayashi, Ono Character, Ono-cho, Horai-cho, Minami-Sitara-gun, Aichi Prefecture (72) Inventor Hanjin Nagao 25-gogogayatsu, Tamachi-Goshogayatsu, Toyokawa-shi, Aichi Prefecture (58) Survey Field (Int.Cl. 7 , DB name) H02G 7/02
Claims (1)
が垂直に配列されるときのそれら導体を送電線鉄塔に取
付けるときに用いられる耐張装置であって、 前記導体の所定長さを対向させて挾んだ一対のくさび片
をテ−パ面を有するクランプ部に挿入して、その導体を
クランプする両くさび型クランプ本体と、 前記両くさび型クランプ本体に着脱自在に設けられ、そ
の両くさび型クランプ本体から出てくるジャンパ線を受
入れるジャンパ線受片と、 前記送電線鉄塔に取付けられたがいし装置に設けられた
連結金具類と前記両くさび型クランプ本体との間に設け
られ、かつ、その連結金具への取付穴の軸心方向とその
両くさび型クランプ本体への取付穴の軸心方向とのなす
角度が、０°を越え９０°未満の所定の角度を有する角
度クレビス金具と、 を有することを特徴とする耐張装置。1. A tension device used for attaching a conductor to a power transmission tower in a case where the number of conductors is equal to two and the conductors are vertically arranged, the conductor having a predetermined length. A pair of wedge pieces are inserted into a clamp portion having a tapered surface so as to clamp the conductor, and a pair of wedge-type clamp bodies for clamping the conductor; A jumper wire receiving piece for receiving a jumper wire coming out of the two wedge-type clamp bodies, and a jumper wire receiving piece provided between the coupling fittings provided in the insulator device attached to the power transmission tower and the double wedge-type clamp body. And an angle clevis having a predetermined angle of more than 0 ° and less than 90 ° between the axial direction of the mounting hole to the connection fitting and the axial direction of the mounting hole to both wedge clamp bodies. Metal fittings , Tension device characterized in that it comprises a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31440693A JP3229095B2 (en) | 1993-11-19 | 1993-11-19 | Tension device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31440693A JP3229095B2 (en) | 1993-11-19 | 1993-11-19 | Tension device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001175815A Division JP2002051417A (en) | 2001-06-11 | 2001-06-11 | Method of straining wire in straining device, and metal wheel mounting bracket used in the method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07143648A JPH07143648A (en) | 1995-06-02 |
| JP3229095B2 true JP3229095B2 (en) | 2001-11-12 |
Family
ID=18052968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31440693A Expired - Lifetime JP3229095B2 (en) | 1993-11-19 | 1993-11-19 | Tension device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3229095B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008125208A (en) * | 2006-11-10 | 2008-05-29 | Chugoku Electric Power Co Inc:The | Wire tightening method and come-alongless metal for use therein |
| JP2008125209A (en) * | 2006-11-10 | 2008-05-29 | Chugoku Electric Power Co Inc:The | Wire tightening method and vernier metal for use therein |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5072982B2 (en) * | 2010-01-07 | 2012-11-14 | 中国電力株式会社 | Connecting device for wedge-type retention clamp |
| JP5901474B2 (en) * | 2012-09-05 | 2016-04-13 | 古河電工パワーシステムズ株式会社 | Tight line fitting |
-
1993
- 1993-11-19 JP JP31440693A patent/JP3229095B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008125208A (en) * | 2006-11-10 | 2008-05-29 | Chugoku Electric Power Co Inc:The | Wire tightening method and come-alongless metal for use therein |
| JP2008125209A (en) * | 2006-11-10 | 2008-05-29 | Chugoku Electric Power Co Inc:The | Wire tightening method and vernier metal for use therein |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07143648A (en) | 1995-06-02 |
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