JP4370174B2 - Detachable tool for LA connector - Google Patents

Detachable tool for LA connector Download PDF

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JP4370174B2
JP4370174B2 JP2004004193A JP2004004193A JP4370174B2 JP 4370174 B2 JP4370174 B2 JP 4370174B2 JP 2004004193 A JP2004004193 A JP 2004004193A JP 2004004193 A JP2004004193 A JP 2004004193A JP 4370174 B2 JP4370174 B2 JP 4370174B2
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connector
cable
inner sleeve
tool
sleeve
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JP2005198459A (en
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芳雄 上村
新一 廣瀬
一則 清水
雄大 小松
治人 小林
義晴 藤井
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Hokuriku Electric Power Co
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Hokuriku Electric Power Co
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Description

本発明は高圧架空配電線路において、LA(避雷器)に取り付けられるLAコネクタを間接活線工法によって、取り付け、又は取り外しを行うためのLAコネクタ用着脱工具に関する。   The present invention relates to an LA connector attaching / detaching tool for attaching or removing an LA connector attached to an LA (lightning arrester) by an indirect hot wire method in a high voltage overhead distribution line.

避雷器へのLAコネクタの着脱作業は、従来、停電作業あるいは直接活線工法等により行われていた。
特開2002−270330号公報(1頁目、図1) 特開2000−068113号公報(1頁目、図1)
The attachment / detachment operation of the LA connector to the lightning arrester has been conventionally performed by a power failure operation or a direct hot wire method.
JP 2002-270330 A (first page, FIG. 1) JP 2000-068113 A (first page, FIG. 1)

しかしながら停電作業では、作業中に電力の供給を停止することから、事業所や一般住宅等の電力利用者に多大な不都合を与えることになる。そこで直接活線工法を採用した場合、作業中の感電の危険性が伴う上に、作業者は感電を防ぐ手立てとして、絶縁上衣や高圧用ゴム手袋などの保護具を着用するものであったから、発汗による肉体的あるいは精神的疲労度が大きくなる問題点があった。そこで、直接活線工法に替えて間接活線工法による着脱作業を行うことが考えられるが、仮に間接活線把持具にマジックハンド等の着脱工具を備え、このマジックハンドを操作してLAコネクタを掴んで避雷器に着脱しようと試みた場合、LAコネクタの多くが円筒状に形成してあることで、把持状態が不安定となって、マジックハンドからのLAコネクタの脱落等が考えられ、作業時の事故の危険性が増加するばかりか、作業効率を著しく低下する懸念がある。   However, in the power outage work, the supply of electric power is stopped during the work, which causes a great inconvenience to power users such as business establishments and ordinary houses. Therefore, when adopting the direct hot wire method, there is a risk of electric shock during work, and the worker wears protective equipment such as an insulating jacket and high-pressure rubber gloves as a means to prevent electric shock. There was a problem that physical or mental fatigue due to sweating increased. Therefore, it is conceivable to replace the direct hot wire method with the indirect hot wire method. However, the indirect hot wire gripper is equipped with a detachable tool such as a magic hand, and this magic hand is operated to connect the LA connector. When trying to attach and detach from the lightning arrester, many of the LA connectors are formed in a cylindrical shape, which makes the gripping state unstable and causes the LA connector to fall off the magic hand. In addition to increasing the risk of accidents, there is a concern that work efficiency will be significantly reduced.

本発明は上記課題を鑑みて発明されたものであり、間接活線工法よって、LAコネクタを避雷器に対して、取付け又は取外しの作業を安全且つ容易に行えるLAコネクタ用着脱工具を提供することにある。   This invention is invented in view of the said subject, and provides the attachment / detachment tool for LA connectors which can carry out the operation | work of attachment or removal of an LA connector with respect to a lightning arrester safely and easily by an indirect hot wire construction method. is there.

本発明は、避雷器の上部に連結するケーブル付きのLAコネクタを、間接活線把持具の操作によって、取付又は取外しを行うためのLAコネクタ用着脱工具であって、工具本体は、LAコネクタの把持手段と、該把持手段を間接活線把持具に取り付けるための連結手段とから構成し、前記把持手段は、硬質な絶縁素材で且つ縦に二分割可能に形成する外スリーブと、弾力性を有する素材で形成した内スリーブとから構成し、外スリーブと内スリーブは、係合手段により係合してあると共に、一端側にLAコネクタの嵌入口を、他端側にケーブルの抜出口を、さらに嵌入口から抜出口に亘って延在するスリットを、それぞれ備えるスリーブ状をなし、内スリーブの内側は、LAコネクタの嵌入口から上端側ケーブルの抜出口に向けて、内径が徐々に小さくなるテーパ状に形成してあり、前記スリットは、把持手段の内外にケーブルの出し入れを自在とする幅を有していることを特徴とする。 The present invention is an LA connector attaching / detaching tool for attaching or removing an LA connector with a cable connected to an upper part of a lightning arrester by operating an indirect hot wire gripping tool. And a connecting means for attaching the gripping means to the indirect live wire gripping tool. The gripping means is made of a hard insulating material and can be divided into two vertically, and has elasticity. The outer sleeve and the inner sleeve are engaged by the engaging means, and the LA connector fitting inlet is provided at one end and the cable outlet is provided at the other end. , fitting a slit extending over the extraction opening from the inlet, without the sleeve with each inside of the inner sleeve, toward the fitting opening of the LA connector withdrawing port of the upper end side cable, inner diameter S to Yes and formed to be small tapering the slit, characterized in that the inside and outside of the gripping means has a width to freely out of the cable.

ここでスリーブ状とは、避雷器に連結するLAコネクタ、及び該LAコネクタから延長するケーブルに対し、(1)LAコネクタの把持、(2)ケーブルへの把持手段の干渉の防止、(3)スリットにおけるケーブルの通過という、これら(1)〜(3)の各条件を満足できる形状である。また連結手段は、間接活線把持具への取り付け・取り外しの双方の作業を容易にできるものであれば、特にその手段を限定するものではなく、さらに連結手段には、把持手段と間接活線把持具との角度調節を行える機能を付与したものであってもよい。また把持手段を形成する素材は、合成ゴム等の軟質及び弾性素材、強化プラスティック等の硬質素材を問わずに適用できるが、活線工事に使用するものであるから、絶縁性を有する素材であることが望ましい。   Here, the sleeve shape refers to the LA connector connected to the lightning arrester and the cable extending from the LA connector, (1) gripping the LA connector, (2) preventing interference of the gripping means with the cable, and (3) slits. It is a shape which can satisfy each of these conditions (1) to (3), that is, the passage of the cable at. In addition, the connecting means is not particularly limited as long as it can facilitate both attachment and removal work to the indirect hot wire gripping tool. Further, the connecting means includes the gripping means and the indirect hot wire. What provided the function which can adjust an angle with a holding tool may be used. The material forming the gripping means can be applied to any soft and elastic material such as synthetic rubber, and any hard material such as reinforced plastic, but it is an insulating material because it is used for live construction. It is desirable.

このように形成した本着脱工具では、避雷器にLAコネクタを取り付ける場合、作業者はまず、間接活線把持具に取り付けた本着脱工具を、前記避雷器の側に近づけ、次いで、避雷器に連結したLAコネクタから延長するケーブルの延長方向と把持手段のスリットの延在方向とを一致させた後、そのままケーブルをスリットに通し、把持手段の嵌入口・抜出口間を前記ケーブルが自在に摺動できる状態とする。そして、把持手段をケーブルに沿って摺動してLAコネクタ側に近づけ、そのまま接近させることで、LAコネクタが把持手段の嵌入口に押し込まれる。またLAコネクタを避雷器から取り外す場合は、取り付け時と同様の手順で、把持手段の嵌入口においてLAコネクタを強く把持し、さらにLAコネクタを把持した後は、作業者は間接活線把持具を操作して把持手段を左右に振ることで、避雷器からLAコネクタが徐々に抜けていき、結果、LAコネクタを把持手段で掴んだまま、作業者の側に取り寄せることが可能となる。   In the present attachment / detachment tool formed in this way, when attaching the LA connector to the lightning arrester, the operator first brings the attachment / detachment tool attached to the indirect hot wire gripping tool closer to the lightning arrester, and then connected to the lightning arrester. After the extension direction of the cable extending from the connector and the extending direction of the slit of the gripping means are matched, the cable is directly passed through the slit, and the cable can freely slide between the fitting inlet / outlet of the gripping means And Then, the LA connector is pushed into the insertion port of the gripping means by sliding the gripping means along the cable, approaching the LA connector side, and approaching it as it is. Also, when removing the LA connector from the lightning arrester, follow the same procedure as when installing it, firmly grip the LA connector at the insertion port of the gripping means, and after gripping the LA connector, the operator operates the indirect hot wire gripper Then, by swinging the gripping means to the left and right, the LA connector is gradually removed from the lightning arrester, and as a result, the LA connector can be pulled to the operator side while being gripped by the gripping means.

ここで内スリーブに適用する弾力性を有する素材としては、具体的に合成ゴム等が挙げられる。また外スリーブを形成する硬質な素材としては具体的に、強化プラスティック等が挙げられるが、LAコネクタ嵌入時における内スリーブの膨らみに対する耐性を有する程度の硬度を備え、さらに絶縁性を有するものであれば特に限定するものではない。また内スリーブと外スリーブとの結合手段については、外スリーブの両端側開放口からの内スリーブの抜け出しを不能とするものであれば特に限定するものではなく、具体的には、外スリーブの内周側と内スリーブの外周側とが接する任意の箇所に、係止可能な爪部と受孔とをそれぞれに設けてもよい。
Specific examples of the elastic material applied to the inner sleeve include synthetic rubber. Specific examples of the hard material that forms the outer sleeve include reinforced plastics, etc., but it should be hard enough to withstand the swelling of the inner sleeve when the LA connector is inserted, and it should also have insulating properties. There is no particular limitation. Further, the coupling means between the inner sleeve and the outer sleeve is not particularly limited as long as the inner sleeve cannot be pulled out from the opening on both ends of the outer sleeve. You may provide the latching nail | claw part and receiving hole in the arbitrary locations where the peripheral side and the outer peripheral side of an inner sleeve contact | connect, respectively .

本発明によれば、外スリーブが硬質な絶縁素材で且つ縦に二分割可能に形成してあり、内スリーブが弾力性を有する素材で形成してあり、外スリーブと内スリーブは、係合手段により係合してあることで、外スリーブを割って内スリーブとの係合状態を解除すれば、使用による磨耗や経年劣化などで消耗した内スリーブを容易に交換できる。また、作業者は電線に近づくことなく、間接活線把持具を用いて容易にLAコネクタを着脱できるので、感電の危険を回避できるのは勿論、肉体的・精神的疲労感を感じることなく、効率的な作業を行える。 According to the present invention, the outer sleeve is formed of a hard insulating material and can be vertically divided into two, the inner sleeve is formed of a material having elasticity, and the outer sleeve and the inner sleeve are engaged means. If the outer sleeve is broken to release the engaged state with the inner sleeve, the inner sleeve that has been consumed due to wear due to use or deterioration over time can be easily replaced. In addition, the operator can easily attach and detach the LA connector using an indirect live wire gripping tool without approaching the electric wire, so that the danger of electric shock can be avoided, as well as without feeling physical and mental fatigue, You can work efficiently.

次に、本発明のLAコネクタ用着脱工具の一実施形態を以下に説明する。
本LAコネクタ用着脱工具は図1のように、把持手段1は強化プラスティック製の外スリーブ2と、該外スリーブ2の内周側に結合手段13,14を介して固定される合成ゴム製の内スリーブ1aと、前記外スリーブ2の外周部に備えた間接活線把持具7との連結手段4と、から構成している。
Next, an embodiment of the LA connector attaching / detaching tool of the present invention will be described below.
As shown in FIG. 1, the LA connector attaching / detaching tool has a gripping means 1 made of a reinforced plastic outer sleeve 2 and a synthetic rubber fixed to the inner peripheral side of the outer sleeve 2 via coupling means 13 and 14. The inner sleeve 1a and a connecting means 4 for connecting the indirect live wire gripping tool 7 provided on the outer peripheral portion of the outer sleeve 2 are configured.

前記把持手段1の構成部材のうちの内スリーブ1aは図2と図3のように、この内スリーブ1aの下端側開口(LAコネクタの嵌入口)Sから上端側開口(ケーブル6の抜出口)Rに向けて、内径が徐々に小さくなるテーパ状に形成してあり、内スリーブ1aの内周面とLAコネクタ5との接触時、LAコネクタ5が内スリーブ1a内に深く嵌入するに従い、内スリーブ1a内周面のLAコネクタ5への締め付けが次第に強くなっていき、さらに内スリーブ1aを形成する合成ゴムの弾力も相俟って、LAコネクタ5を強く把持することとなる。また内スリーブ1aには、該内スリーブ1aの嵌入口Sから抜出口Rに亘って延在するスリット3aを設けており、このスリット3aは、LAコネクタ5から延長するケーブル6の太さよりも大きな広幅(約15mm)を有し、実際の作業時には、前記ケーブル6をスリット3a,3bに通して内スリーブ1a内に導き、避雷器8からLAコネクタ5を外すことなく、内スリーブ1aの嵌入口SをLAコネクタ5の直上位置にもってくることができる。   As shown in FIGS. 2 and 3, the inner sleeve 1a among the constituent members of the gripping means 1 is opened from the lower end side opening (LA connector fitting inlet) S of the inner sleeve 1a to the upper end side opening (the outlet of the cable 6). The inner diameter gradually decreases toward R, and when the inner peripheral surface of the inner sleeve 1a and the LA connector 5 are in contact with each other, the LA connector 5 is inserted deeply into the inner sleeve 1a. The tightening of the inner peripheral surface of the sleeve 1a to the LA connector 5 is gradually strengthened, and the elasticity of the synthetic rubber forming the inner sleeve 1a is combined to firmly grip the LA connector 5. The inner sleeve 1a is provided with a slit 3a extending from the insertion opening S to the outlet R of the inner sleeve 1a. The slit 3a is larger than the thickness of the cable 6 extending from the LA connector 5. It has a wide width (about 15 mm), and in actual work, the cable 6 is guided through the slits 3a and 3b into the inner sleeve 1a, and the LA connector 5 is not removed from the lightning arrester 8, so that the insertion opening S of the inner sleeve 1a is obtained. Can be brought to a position directly above the LA connector 5.

次に外スリーブ2は、強化プラスティックで形成され、前記内スリーブ1aと同様に上端開放口Rから下端側開放口Sに亘るスリット3bを備え、さらに縦に二分割することが可能である。また、内スリーブ1aとの結合手段13,14として、前述の内スリーブ1aの周面において相反する左右方向にそれぞれ突出する爪部13,13に対し、外スリーブ2の周面には受孔14,14をそれぞれ設けており、この爪部13,13を受孔14,14に係止することで、内外各スリーブ1a,2のスリット3a,3bが一致し、さらにスリット3a,3b、嵌入口S、抜出口R、のそれぞれが連通する。そして外スリーブ2の分割した各パーツの張出片10a,10bをネジ15止めすることで、外スリーブ2の内周面に内スリーブ1aが抜け出し不能な状態で結合される。
尚、上端開放口Rはケーブル6の抜出口を兼ね、また下端側開放口SはLAコネクタ5の嵌入口を兼ねるものである。
Next, the outer sleeve 2 is formed of a reinforced plastic and includes a slit 3b extending from the upper end opening R to the lower end opening S as in the case of the inner sleeve 1a, and can be further divided into two vertically. Further, as coupling means 13 and 14 with the inner sleeve 1a, the outer sleeve 2 has a receiving hole 14 on the peripheral surface of the outer sleeve 2 with respect to the claw portions 13 and 13 protruding in the left and right directions opposite to each other on the peripheral surface of the inner sleeve 1a. , 14 are provided, and the claw portions 13, 13 are engaged with the receiving holes 14, 14, so that the slits 3a, 3b of the inner and outer sleeves 1a, 2 are aligned with each other, and further, the slits 3a, 3b, Each of S and the outlet R communicates. Then, the projecting pieces 10a and 10b of the divided parts of the outer sleeve 2 are fixed with screws 15 so that the inner sleeve 1a is coupled to the inner peripheral surface of the outer sleeve 2 in a state where it cannot be pulled out.
The upper end opening R serves also as an outlet for the cable 6, and the lower end opening S serves also as an insertion port for the LA connector 5.

次に連結手段4は、外スリーブ2の張出片10aの延長部位16と、間接活線把持具7のツイストロック部12と連結が可能な基部11とからなっており、さらに、前記延長部位16と基部11とは、円形のラチェット面17a,17b同士が重なり合う状態で接し、これを適当な噛み合わせ位置でネジ9止めすることで、間接活線把持具7を基準とする上下への揺動、及び、その揺動位置での固定を可能とし、これにより、把持手段1のケーブル6への差し入れる角度を自在に調節できる。   Next, the connecting means 4 includes an extended portion 16 of the projecting piece 10a of the outer sleeve 2 and a base portion 11 that can be connected to the twist lock portion 12 of the indirect live wire gripping tool 7, and further, the extended portion. 16 and the base 11 are in contact with each other in a state where the circular ratchet surfaces 17a and 17b are overlapped with each other. It is possible to move and fix at the swing position, and thereby the angle at which the gripping means 1 is inserted into the cable 6 can be freely adjusted.

次に、前記構成のLAコネクタ用着脱工具の実際の使用手順を、各図面に基づいて順を追って説明する。
尚、本実施では、避雷器8からLAコネクタ5を取り外す場合について説明している。
まず避雷器8の上部に連結したLAコネクタ5に対して、本着脱工具を接近する場合は図4(a)のように、把持手段1のスリット3a,3bをLAコネクタ5から延長するケーブル6と一致するように合わせ、そのまま前記スリット3a,3bを差し入れる。そして、ケーブル6をスリット3a,3bに通し、該ケーブル6が嵌入口Sと抜出口Rとを挿通するように内スリーブ1aの中に入れた後は、図4(b)のように、ケーブル6がLAコネクタ5にまで延長することを利用し、作業者は間接活線把持具7を下ろす方向に操作し、内スリーブ1aの嵌入口SにLAコネクタ5の上部膨大部18を嵌入する。そして図4(c)のように、LAコネクタ5を把持したまま、間接活線把持具7を左右に繰り返して振るように操作し、避雷器8からLAコネクタ5を上方側へ徐々に引き抜いていき、最終的に図4(d)のように、LAコネクタ5を本着脱工具に把持した状態で抜き出し、作業者の側に取り寄せて作業を完了する。
Next, an actual use procedure of the LA connector attaching / detaching tool having the above-described configuration will be described step by step based on each drawing.
In this embodiment, the case where the LA connector 5 is removed from the lightning arrester 8 is described.
First, when the detachable tool is approached to the LA connector 5 connected to the upper part of the lightning arrester 8, as shown in FIG. 4 (a), the cable 6 extending the slits 3a, 3b of the gripping means 1 from the LA connector 5; The slits 3a and 3b are inserted as they are. Then, after the cable 6 is passed through the slits 3a and 3b and the cable 6 is inserted into the inner sleeve 1a so as to pass through the fitting inlet S and the outlet R, as shown in FIG. Using the fact that 6 extends to the LA connector 5, the operator operates the indirect hot wire gripping tool 7 in the direction of lowering, and inserts the upper enormous portion 18 of the LA connector 5 into the insertion opening S of the inner sleeve 1a. Then, as shown in FIG. 4C, while holding the LA connector 5, the indirect hot wire gripping tool 7 is operated so as to be repeatedly swung left and right, and the LA connector 5 is gradually pulled out from the lightning arrester 8. Finally, as shown in FIG. 4 (d), the LA connector 5 is pulled out in a state of being gripped by the present attachment / detachment tool, and is taken to the operator side to complete the operation.

本発明によるLAコネクタ用着脱工具の使用状態を示す斜視図である。It is a perspective view which shows the use condition of the attachment / detachment tool for LA connectors by this invention. 図1の一部を切欠した平面図である。It is the top view which notched a part of FIG. 図1の一部を切欠した縦断面図である。It is the longitudinal cross-sectional view which notched a part of FIG. 本発明のLAコネクタ用着脱工具の使用手順を示す説明図である。It is explanatory drawing which shows the use procedure of the attachment / detachment tool for LA connectors of this invention.

符号の説明Explanation of symbols

1,1a 内スリーブ(把持手段)
2 外スリーブ(把持手段)
3a,3b スリット
4 連結手段
5 LAコネクタ
6 ケーブル
7 間接活線把持具
8 避雷器
13 爪部(結合手段)
14 受孔(結合手段)
S 嵌入口
R 抜出口
1,1a Inner sleeve (gripping means)
2 Outer sleeve (gripping means)
3a, 3b Slit 4 Connecting means 5 LA connector 6 Cable 7 Indirect hot wire gripping tool 8 Lightning arrester 13 Claw part (coupling means)
14 Receiving hole (coupling means)
S Inlet R Outlet

Claims (1)

避雷器(8)の上部に連結するケーブル(6)付きのLAコネクタ(5)を、間接活線把持具(7)の操作によって、取付又は取外しを行うためのLAコネクタ用着脱工具であって、
工具本体は、LAコネクタ(5)の把持手段(1,1a,2)と、該把持手段(1,1a,2)を間接活線把持具(7)に取り付けるための連結手段(4)とから構成し、
前記把持手段(1,1a,2)は、硬質な絶縁素材で且つ縦に二分割可能に形成する外スリーブ(2)と、弾力性を有する素材で形成した内スリーブ(1a)とから構成し、外スリーブ(2)と内スリーブ(1a)は、係合手段(13,14)により係合してあると共に、一端側にLAコネクタ(5)の嵌入口(S)を、他端側にケーブル(6)の抜出口(R)を、さらに嵌入口(S)から抜出口(R)に亘って延在するスリット(3a,3b)を、それぞれ備えるスリーブ状をなし、内スリーブ(1a)の内側は、LAコネクタ(5)の嵌入口(S)から上端側ケーブル(6)の抜出口(R)に向けて、内径が徐々に小さくなるテーパ状に形成してあり、
前記スリット(3a,3b)は、把持手段(1,1a,2)の内外にケーブル(6)の出し入れを自在とする幅を有していることを特徴とするLAコネクタ用着脱工具。
An LA connector attaching / detaching tool for attaching or removing an LA connector (5) with a cable (6) connected to an upper part of a lightning arrester (8) by operating an indirect hot wire gripping tool (7),
The tool body includes gripping means (1, 1a, 2) of the LA connector (5), and connection means (4) for attaching the gripping means (1, 1a, 2) to the indirect live wire gripping tool (7). Consisting of
The gripping means (1, 1a, 2) is composed of an outer sleeve (2) formed of a hard insulating material and capable of being vertically divided into two, and an inner sleeve (1a) formed of a material having elasticity. The outer sleeve (2) and the inner sleeve (1a) are engaged by the engaging means (13, 14), and the insertion port (S) of the LA connector (5) is provided on one end side, and the other end side is provided. withdrawing port of cable (6) to (R), further, fitting port (S) slit extending over the extraction opening (R) from (3a, 3b) and forms a sleeve-like with each inner sleeve (1a ) Is formed in a tapered shape in which the inner diameter gradually decreases from the fitting port (S) of the LA connector (5) toward the outlet port (R) of the upper end side cable (6).
The slit (3a, 3b) has a width that allows the cable (6) to be taken in and out of the gripping means (1, 1a, 2).
JP2004004193A 2004-01-09 2004-01-09 Detachable tool for LA connector Expired - Lifetime JP4370174B2 (en)

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US7750236B2 (en) 2007-01-09 2010-07-06 The Southern Company Non-boring support system for transmission line structures
CN103606858A (en) * 2013-12-02 2014-02-26 国家电网公司 Switched type arrestor taking and hanging tool
CN105965442B (en) * 2016-07-26 2018-06-08 国网电力科学研究院武汉南瑞有限责任公司 A kind of Portable electric arrester brace erecting device and installation method

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