JPH0817528B2 - Prefabricated wire fittings - Google Patents
Prefabricated wire fittingsInfo
- Publication number
- JPH0817528B2 JPH0817528B2 JP12025987A JP12025987A JPH0817528B2 JP H0817528 B2 JPH0817528 B2 JP H0817528B2 JP 12025987 A JP12025987 A JP 12025987A JP 12025987 A JP12025987 A JP 12025987A JP H0817528 B2 JPH0817528 B2 JP H0817528B2
- Authority
- JP
- Japan
- Prior art keywords
- wire
- metal fitting
- split
- connecting portion
- tension
- 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 - Fee Related
Links
- 239000002184 metal Substances 0.000 claims description 83
- 238000005491 wire drawing Methods 0.000 claims description 60
- 238000000034 method Methods 0.000 claims description 21
- 230000006835 compression Effects 0.000 description 19
- 238000007906 compression Methods 0.000 description 19
- 229910000831 Steel Inorganic materials 0.000 description 10
- 239000010959 steel Substances 0.000 description 10
- 238000004804 winding Methods 0.000 description 10
- 238000010276 construction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
Landscapes
- Electric Cable Installation (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、架空送電線等の線条を鉄塔間にかけ渡すた
めの延線工法において使用するプレハブ延線用金具に関
するものである。TECHNICAL FIELD The present invention relates to a prefabricated wire fitting for use in a wire-drawing method for bridging wires such as overhead power lines between steel towers.
（従来の技術） 第３図はその延線工法を説明するための平面図であ
り、図中１は鉄塔、1aはそのアーム、２はアーム1aの両
側に取付けられている碍子連装置、３は線条である。(Prior Art) FIG. 3 is a plan view for explaining the wire drawing method. In the figure, 1 is a steel tower, 1a is its arm, 2 is an insulator connecting device mounted on both sides of the arm 1a, 3 Is a line.
そして鉄塔１間に、線条３を延線するには、線条３を
事前に算出されている線条長さで切断し、その切断され
た線条３の前後の線条端末部へ耐張クランプ（圧縮クラ
ンプ）４を取付け、その両耐張クランプ間へ鉄塔アーム
1aの幅l1とその鉄塔１の両側へ取付けられる碍子連装置
２の長さl2の合計長Ｌと略等しい長さのワイヤー（割ワ
イヤ）5bを入れて延線するプレハブ架線が従来から行わ
れている。すなわち割ワイヤー5bは、線条３を鉄塔１間
へ適切に配置するために設けられるものである。Then, in order to extend the line 3 between the steel towers 1, the line 3 is cut at a line length calculated in advance, and the line end portions before and after the cut line 3 are cut off. Attach a tension clamp (compression clamp) 4 and insert a steel tower arm between the tension resistant clamps.
Conventionally, a prefabricated overhead wire is a wire (split wire) 5b having a length substantially equal to the total length L of the width l 1 of 1a and the length l 2 of the insulator connecting device 2 attached to both sides of the steel tower 1 Has been done. That is, the split wire 5b is provided in order to properly arrange the filament 3 between the steel towers 1.
前記プレハブ架線の場合、鉄塔１から適当な距離を隔
てて所謂ドラム場６が設けられ、そのドラム場６へ線条
延線車７およびワイヤー延線車８が設置され、更に線条
延線車７の後方へ線条ドラム９が設けられている。そし
て複数の鉄塔１を隔てて、前方へ所謂エンジン場10が設
置され、このエンジン場10上にワイヤー巻取り装置11が
設けられて、各鉄塔１間にかけ渡される線条３と連結し
たワイヤー12を巻取って、線条３を延線するようにして
いる。In the case of the above-mentioned prefabricated overhead line, a so-called drum field 6 is provided at an appropriate distance from the steel tower 1, and a wire drawing vehicle 7 and a wire drawing vehicle 8 are installed in the drum field 6 and further a wire drawing vehicle. A filament drum 9 is provided to the rear of 7. A so-called engine field 10 is installed in front of the plurality of towers 1 and a wire winding device 11 is provided on the engine field 10, and a wire 12 connected to the wire 3 extended between the towers 1. Is wound and the wire 3 is extended.
線条３は、線条ドラム９から出て、前方の線条延線車
７へ数回巻かれ、その先端へ耐張クランプ（圧縮クラン
プ）４が取付けられ、その耐張クランプ４へ連結金具
（カムアロングを使わず緊線を行う場合はカムアロング
レス金具、図示せず）が連結されされ、そのカムアロン
グレス金具へワイヤーが取付けられているワイヤーコネ
クターを連結する。The wire 3 comes out of the wire drum 9 and is wound several times around the wire extension wheel 7 in the front, and a tension clamp (compression clamp) 4 is attached to the tip thereof, and the tension clamp 4 is connected to the metal fitting. (When performing a tight line without using a cam along, a cam along metal fitting, not shown) is connected, and the wire connector to which the wire is attached is connected to the cam along metal fitting.
第３図の場合ワイヤー12は、ワイヤー巻取り装置11で
巻取られ、線条３を延線する。線条３は、その線条３が
取付けられる鉄塔１間の必要線条長さが繰り出ると、そ
の端末部分へ耐張クランプ（圧縮クランプ）４を取付け
る為に線条３を切断する。In the case of FIG. 3, the wire 12 is wound by the wire winding device 11 and the wire 3 is extended. When the required line length between the steel towers 1 to which the line 3 is attached is extended, the line 3 is cut in order to attach a tension clamp (compression clamp) 4 to its end portion.
第６図は従来の延線工法の一例を示すもので、この場
合、まず第６図（ａ）に示すように線条ドラム９から引
き出した線条３を線条延線車７を介して前方へ延線し、
線条延線車７とその後方の線条ドラム９との間で第６図
（ｂ）に示すように線条３を切断する。この場合線条延
線車７の後方へは、線条３の張力は加わっていない。切
断された線条３の前後の線条端末部へそれぞれ第６図
（ｂ）で示すように延線クランプ13を圧縮して固定す
る。（耐張クランプ４は、線条延線車７を通過できない
ため）続いて、その延線クランプ13間へ割ワイヤー5bを
接続後、第３図に示したワイヤー巻取り装置11で線条３
と割ワイヤー5bを延線する。この延線を続けて、適当量
延線した後第６図（ｃ）に示すように線条３へ後記する
線条仮止工具14のカムアロング14aを取付け、その線条
仮止工具14のワイヤー15へ線条３の張力を移す。続い
て、延線クランプ13の付け根付近で線条３を切断し、延
線クランプ13を切り外すと共に、第６図（ｄ）に示すよ
うに耐張クランプ（圧縮クランプ）４を線条３へ取付
け、その後、その耐張クランプ（圧縮クランプ）４へ連
結金具（カムアロングを使わず緊線を行う場合は、カム
アロングレス金具）16およびワイヤーコネクター17を取
付け、そのワイヤーコネクター17へ前記割ワイヤー5bを
取付けて前記線条仮止工具14のウインチを緩めながら再
び延線する。そして延線を続けて、線条延線車７の前方
へ割ワイヤー5bの後端が進んで来た所で、割ワイヤー5b
の後端側へ取付けられている延線クランプ13の付け根付
近で線条３を切断し、延線クランプ13を切り外す。この
場合、前記線条仮止工具14はまだ取付けられているの
で、その線条仮止工具14へ事前に張力を加えておけば良
い。続いて第５図（ｅ）に示すように、耐張クランプ
（圧縮クランプ）４を線条３へ取付ける。耐張クランプ
（圧縮クランプ）４を取付け後、その耐張クランプ（圧
縮クランプ）４へカムアロングレス金具16およびワイヤ
ーコネクター17を取付け、そのワイヤーコネクター17へ
前記割ワイヤー5bを接続する。これで割ワイヤー5bの前
後へ線条３が連結される。続いて、前記線条仮止工具14
を緩めて前記線条３へカムアロング14aにより取付けら
れているワイヤー15へ加わっている張力を線条３と割ワ
イヤー5bへ移す。そして張力が線条３と割ワイヤー5bへ
移動した後、線条３へ取付けられているカムアロング14
aとワイヤー15を取外す。（第６図（ｅ）参照）。この
従来の延線工法では、線条仮止工具14のカムアロング14
aは、延線車7,8などのあるドラム場６から前方へかなり
の距離（例えば約40m程度）繰り出るので、おのずとそ
の高度も増して、例えば、約15〜20mの高所に位置して
いる。その結果、例えば、カムアロング14a等を取外す
位置と想定される場所へ足場を設ける方法や、レッカー
車の腕の先端へ取付けられている篭に乗ってカムアロン
グ14a等を取外す方法が従来行われている。FIG. 6 shows an example of a conventional wire drawing method. In this case, first, as shown in FIG. 6 (a), the wire 3 drawn from the wire drum 9 is passed through a wire drawing wheel 7. Extend the wire forward,
The line 3 is cut between the line drawing wheel 7 and the line drum 9 behind the line drawing wheel 7 as shown in FIG. 6 (b). In this case, the tension of the line 3 is not applied to the rear of the line drawing vehicle 7. As shown in FIG. 6 (b), the wire drawing clamps 13 are compressed and fixed to the wire end portions before and after the cut wire 3, respectively. (Because the tension clamp 4 cannot pass through the wire extension wheel 7, the split wire 5b is connected between the wire extension clamps 13 and then the wire winding device 11 shown in FIG.
And split wire 5b. After this wire drawing is continued and an appropriate amount of wire is drawn, as shown in FIG. 6 (c), a cam along 14a of the wire temporary fixing tool 14 to be described later is attached to the wire 3, and the wire of the wire temporary fixing tool 14 is attached. Transfer the tension of filament 3 to 15. Then, the wire 3 is cut near the base of the wire clamp 13, the wire clamp 13 is cut off, and the tension clamp (compression clamp) 4 is attached to the wire 3 as shown in FIG. 6 (d). After that, attach the connecting metal fittings (or the metal fittings for cam tightening if you do not use the cam along) 16 and the wire connector 17 to the tension-resistant clamp (compression clamp) 4, and connect the split wire 5b to the wire connector 17. , And loosen the winch of the temporary wire fixing tool 14 and extend the wire again. Then, the wire extension is continued, and when the rear end of the split wire 5b advances toward the front of the wire drawing vehicle 7, the split wire 5b
The wire strip 3 is cut near the root of the wire extension clamp 13 attached to the rear end side of the wire extension clamp 13, and the wire extension clamp 13 is cut off. In this case, since the temporary wire fixing tool 14 is still attached, tension may be applied to the temporary wire fixing tool 14 in advance. Subsequently, as shown in FIG. 5 (e), a tension clamp (compression clamp) 4 is attached to the wire 3. After attaching the tension resistant clamp (compression clamp) 4, the cam along metal fitting 16 and the wire connector 17 are attached to the tension resistant clamp (compression clamp) 4, and the split wire 5b is connected to the wire connector 17. This connects the wire 3 to the front and back of the split wire 5b. Next, the line temporary fixing tool 14
Is loosened and the tension applied to the wire 15 attached to the wire 3 by the cam along 14a is transferred to the wire 3 and the split wire 5b. Then, after the tension moves to the line 3 and the split wire 5b, the cam along 14 attached to the line 3
Remove a and wire 15. (See FIG. 6 (e)). With this conventional wire drawing method, the cam along 14
Since a extends over a considerable distance (for example, about 40 m) from the drum field 6 where there are line-cars 7, 8 etc., it naturally increases its altitude, and is located at a height of about 15 to 20 m, for example. ing. As a result, for example, a method of providing a scaffold at a position supposed to remove the cam along 14a or the like, or a method of removing the cam along 14a or the like by riding a basket attached to the tip of the arm of a tow truck are used.
また第７図は従来の延線工法の他の例を示すもので、
この場合は、まず第７図（ａ）に示すように線条延線車
７の前方で線条３を、線条仮止工具14で仮止めする。続
いて、その線条３を第７図（ｂ）に示すように切断し、
切断された線条３の前後の線条端末部へ耐張クランプ４
を取付け、その両耐張クランプ（圧縮クランプ）４へ連
結金具（カムアロングを使わず緊線を行う場合は、カム
アロングレス金具）16およびワイヤーコネクター17を取
付け、両ワイヤーコネクター17間へ割ワイヤー5bを取付
ける。これで割ワイヤー5bの前後へ線条３が連結され
る。続いて、第７図（ｃ）に示すように前記線条仮止工
具14を緩めて前記線条３へカムアロング14aを介して取
付けられているワイヤー15に加わっている張力を線条３
と割ワイヤー5bへ移す。そして、張力が線条３と割ワイ
ヤー5bへ移動した後、線条３に取付けられていたカムア
ロング14aとワイヤー15を取外す。FIG. 7 shows another example of the conventional wire drawing method.
In this case, first, as shown in FIG. 7A, the line 3 is temporarily fixed by the line temporary fixing tool 14 in front of the line drawing vehicle 7. Then, the filament 3 is cut as shown in FIG. 7 (b),
A tension clamp 4 is attached to the end of the line before and after the cut line 3.
Attach the connecting metal fittings (if there is a tight cable without using the cam along) 16 and the wire connector 17 to both the tension resistant clamps (compression clamps) 4, and split the wire 5b between both wire connectors 17. Install. This connects the wire 3 to the front and back of the split wire 5b. Subsequently, as shown in FIG. 7 (c), the wire temporary fixing tool 14 is loosened, and the tension applied to the wire 15 attached to the wire 3 via the cam along 14a is applied to the wire 3.
And split wire 5b. Then, after the tension moves to the wire 3 and the split wire 5b, the cam along 14a and the wire 15 attached to the wire 3 are removed.
この従来の延線工法では、線条仮止工具14を線条３か
ら取外す場合、そのカムアロング14aの位置は、延線車
7,8などのあるドラム場６から前方へかなりの距離（例
えば約40m程度）離れた位置にあるので、おのずとその
高度も増加して、例えば15〜20mの高所に位置してい
る。その結果、前記した従来の延線工法と同様に従え
ば、カムアロング14a等を取外す位置と想定される場所
へ足場を設けてその取外し作業を行うか、またはレッカ
ー車の腕の先端へ取付けられている篭に乗って取外し作
業を行っていた。In this conventional wire drawing method, when the wire temporary fixing tool 14 is removed from the wire 3, the position of the cam along 14a is
Since it is located at a considerable distance (for example, about 40 m) from the drum field 6 such as 7, 8 or the like, the altitude naturally increases and is located at a height of 15 to 20 m, for example. As a result, according to the same method as the conventional wire-drawing method described above, a scaffold is provided at a position where the cam along 14a and the like are supposed to be removed, and the work is removed, or it is attached to the tip of the arm of a tow truck. I was working on the cage to remove it.
本発明者等は、その問題点を解決する目的で、例えば
第４図に示すような延線工法を提案した。この工法は第
４図（ａ）に示すように、まず線条延線車７の前方で線
条３を切断する。The present inventors have proposed a wire drawing method as shown in FIG. 4 for the purpose of solving the problem. In this construction method, as shown in FIG. 4 (a), first, the filament 3 is cut in front of the filament drawing wheel 7.
そのとき切断する前に線条３をカムアロング14a,ワイ
ヤー15,巻上げ機（例えばレバーブロック）（図示せ
ず）等からなる線条仮止工具14のカムアロング14aによ
って仮止めする。At that time, before cutting, the wire 3 is temporarily fixed by a cam along 14a of a wire temporary fixing tool 14 including a cam along 14a, a wire 15, a winding machine (for example, a lever block) (not shown), and the like.
そして切断された線条３の前後の線条端末部へ耐張ク
ランプ（圧縮クランプ）４を取付け、その延線中の線条
３へ取付けられている圧縮クランプ４へ連結金具（カム
アロングを使わず緊線を行う場合は、カムアロングレス
金具）16を取付け、そのカムアロングレス金具16へワイ
ヤーコネクター17を取付け、そのワイヤーコネクター17
へ、ワイヤー延線車８に巻回されている主割ワイヤー５
の端部を連結する。Then, the tension clamps (compression clamps) 4 are attached to the end portions of the filaments before and after the cut filaments 3, and the coupling clamps (without using the cam along) are attached to the compression clamps 4 attached to the filaments 3 in the extending line. To tighten the wire, attach the cam along metal fitting 16 and attach the wire connector 17 to the cam along metal fitting 16 and then the wire connector 17
To the main split wire 5 wound around the wire drawing car 8.
Connect the ends of.
そしてそれらを連結した後、（第４図（ｂ）に示すよ
うに、前記線条仮止工具14の巻上げ機（例えばレバーブ
ロック）を緩めるか、又はワイヤー延線車８を逆転させ
て、延線中の線条３へ張力を加え、その後、第４図
（ｃ）のように、前記線条仮止工具14を取外す。Then, after connecting them, as shown in FIG. 4 (b), the winding machine (for example, a lever block) of the wire temporary fixing tool 14 is loosened or the wire drawing wheel 8 is reversed to extend the wire. Tension is applied to the line 3 in the line, and then the line temporary fixing tool 14 is removed as shown in FIG. 4 (c).
又、主割ワイヤー５の後端へは後部ワイヤーコネクタ
ー17を取付け、その後部ワイヤーコネクター17に支えワ
イヤー18が取付けられる。なお、この支えワイヤー18
は、次の鉄塔の所へ用いる主割ワイヤー５を使う事も可
能である。そしてそれらは、ワイヤー延線車８の後方で
連結され、延線の工程でワイヤー延線車８を通過する。
続いてワイヤー巻取り装置11（第３図参照）を作動させ
て主割ワイヤー５を延線する。主割ワイヤー５が延線さ
れてワイヤー延線車８の前方へ後部ワイヤーコネクター
17が出た状態で、（第４図（ｃ）参照），未延線線条端
末部の圧縮クランプ４と主割ワイヤー５の後端とを、第
４図（ｄ）に示すように、連結部品類Ｄで連結する。そ
の連結部品類Ｄは、第４図（ｃ）に示すように、圧縮ク
ランプ４側からカムアロングレス金具16,ワイヤーコネ
クター17,副割ワイヤー19,ワイヤーコネクター17とから
なり、第４図（ｄ）に示すように、主割ワイヤー５端の
取付環5aへ取付けられ、第４図（ｅ）のように、延線中
の線条3,主割ワイヤー5,連結部品類Ｄを介して未延線線
条３とが連結される。すなわちこの場合、このワイヤー
コネクター17は、前記支えワイヤー18のワイヤーコネク
ター17の隣りへ取付けられる。（第４図（ｄ）参照） また第５図は本発明者等が前述の問題点を解決するた
めに提案した他の延線工法である。すなわちこの工法
は、まず第５図（ａ）に示すように、線条延線車７の前
方で線条仮止工具14で仮止めされている線条３を切断
し、切断された線条３の前後の線条端末部へ耐張クラン
プ４を取付け、その延線中の線条３へ取付けられている
耐張クランプ４と主割ワイヤー５の前端とを連結すると
共に、主割ワイヤー５の後端とワイヤー延線車８の前方
へ出ている支えワイヤー18の端部とを連結し、続いて線
条仮止工具14を緩めるか、又は、ワイヤー延線車８を逆
転させて、第５図（ｂ）に示すように、延線中の線条3,
主割ワイヤー5,支えワイヤー18へ張力を加える。すなわ
ち線条仮止工具14を緩めて延線中の線条３等へ張力を加
えてある場合は、ワイヤー延線車８を逆転させて支えワ
イヤー18,主割ワイヤー５をワイヤー延線車８へ巻取っ
て後、その線条仮止工具14を取外し、続いて、ワイヤー
延線車８を正転させて主割ワイヤー5,支えワイヤー18を
繰り出す。そしてワイヤー延線車８の前方へ主割ワイヤ
ー５の後端と支えワイヤー18の前端が出た後、（第５図
（ｃ）参照）未延線線条端末部の圧縮クランプ４と主割
ワイヤー５の後端とを、連結部品類Ｄを介して連結す
る。その連結部品類Ｄは、圧縮クランプ４側からカムア
ロングレス金具16,ワイヤーコネクター17,副割ワイヤー
19,ワイヤーコネクター17とからなり、第５図（ｄ）に
示すように、主割ワイヤー端の取付環5aへ副割ワイヤー
19と、連結したコネクター17を接続することによって、
延線中の線条3,主割ワイヤー5,連結部品類D,未延線線条
３とが連結される。（第５図（ｅ）参照） なお、その場合、このワイヤーコネクター17は、前記
支えワイヤー18のワイヤーコネクター17の隣りへ取付け
られる。（第５図（ｄ）参照），続いてワイヤー延線車
８へ巻回されているワイヤー18を緩めて未延線線条３へ
張力を加え、その後、その支えワイヤー18とワイヤーコ
ネクター17を外す。（第５図（ｅ）参照） （発明が解決しようとする問題点） しかしながら上述した第４図および第５図に示した延
線工法を実施する場合、主割ワイヤー５の後端の取付環
5aには、支えワイヤー18を連結するワイヤーコネクター
17が連結されていて、その隣りへさらに未延線線条３に
連結したもう一つのワイヤーコネクター17を取付けなけ
ればならない。そしてこの張力の加わっている取付環5a
の環の中へワイヤーコネクター17を取付けるのはなかな
かむずかしいため作業が面倒であるという問題点があ
る。また、連結後において、未延線線条端末部の耐張ク
ランプ４と未延線線条３へ張力を移動させる場合、前記
した二つのワイヤーコネクター17が触れて損傷したり、
またワイヤーの拗れによってワイヤーコネクター17が強
度的な問題を発生する等という問題点がある。A rear wire connector 17 is attached to the rear end of the main split wire 5, and a supporting wire 18 is attached to the rear wire connector 17. In addition, this support wire 18
It is also possible to use the main split wire 5 used for the next steel tower. Then, they are connected behind the wire drawing wheel 8 and pass through the wire drawing wheel 8 in the process of drawing the wire.
Then, the wire winding device 11 (see FIG. 3) is operated to extend the main split wire 5. The main split wire 5 is extended to the front of the wire drawing vehicle 8 Rear wire connector
As shown in FIG. 4 (d), with 17 protruding (see FIG. 4 (c)), the compression clamp 4 at the end of the unstretched wire and the rear end of the main split wire 5 are Connect with connecting parts D. As shown in FIG. 4 (c), the connecting parts D are composed of a cam along metal fitting 16, a wire connector 17, a split wire 19, and a wire connector 17 from the compression clamp 4 side. ), It is attached to the mounting ring 5a at the end of the main split wire 5, and as shown in FIG. 4 (e), it is not connected via the line 3, the main split wire 5, and the connecting parts D in the extending wire. The wire extension 3 is connected. That is, in this case, the wire connector 17 is attached to the support wire 18 adjacent to the wire connector 17. (See FIG. 4 (d)) FIG. 5 shows another wire-drawing method proposed by the present inventors to solve the above-mentioned problems. That is, in this construction method, as shown in FIG. 5 (a), first, the line 3 temporarily fixed by the line temporary fixing tool 14 is cut in front of the line drawing wheel 7, and the cut line is cut. 3, the tension clamps 4 are attached to the end portions of the filaments before and after 3, and the tension clamps 4 attached to the filaments 3 in the extension are connected to the front ends of the main split wires 5, and the main split wires 5 are connected. The rear end and the end of the support wire 18 protruding to the front of the wire drawing wheel 8 are connected to each other, and then the wire temporary fixing tool 14 is loosened, or the wire drawing wheel 8 is reversed. As shown in Fig. 5 (b), the filaments 3, 3
Tension is applied to the main split wire 5 and the support wire 18. That is, when the wire temporary fixing tool 14 is loosened and tension is applied to the wire 3 or the like in the wire drawing, the wire drawing wheel 8 is reversed to move the supporting wire 18 and the main split wire 5 to the wire drawing wheel 8 After winding, the wire temporary fixing tool 14 is removed, and then the wire drawing wheel 8 is normally rotated to feed the main split wire 5 and the support wire 18. Then, after the rear end of the main split wire 5 and the front end of the support wire 18 come out to the front of the wire drawing vehicle 8, (see FIG. 5 (c)), the compression clamp 4 and the main split of the unstretched wire end portion are formed. The rear end of the wire 5 is connected via the connecting parts D. The connecting parts D are, from the compression clamp 4 side, the cam along metal fitting 16, the wire connector 17, the split wire.
19, consisting of a wire connector 17 and a sub split wire to the mounting ring 5a at the end of the main split wire as shown in FIG. 5 (d).
By connecting 19 and the connected connector 17,
The line 3, the main split wire 5, the connecting parts D, and the undrawn line 3 that are being extended are connected. (See FIG. 5 (e)) In this case, the wire connector 17 is attached to the support wire 18 adjacent to the wire connector 17. (See FIG. 5 (d)), then loosen the wire 18 wound around the wire drawing wheel 8 and apply tension to the undrawn wire strip 3, and then the support wire 18 and the wire connector 17 remove. (Refer to FIG. 5 (e)) (Problems to be solved by the invention) However, when the wire drawing method shown in FIG. 4 and FIG. 5 described above is carried out, a mounting ring at the rear end of the main split wire 5 is attached.
5a has a wire connector that connects the support wire 18
17 is connected, and another wire connector 17 connected to the unstretched wire 3 must be attached next to it. And the mounting ring 5a to which this tension is applied
It is quite difficult to mount the wire connector 17 into the ring, and the work is troublesome. Further, after the connection, when the tension is moved to the tension-resistant clamp 4 and the unstretched wire strip 3 at the end of the unstretched wire strip, the two wire connectors 17 are touched and damaged,
Further, there is a problem that the wire connector 17 has a problem in strength due to the wire breaking.
（問題点を解決するための手段） 上述の問題点を解決するため本発明においては、一側
に端部へ取付環を形成した主割ワイヤーとの連結部を設
けると共に、他側に副連結金具との連結部を設け、これ
ら両連結部の中間へ支えワイヤー連結金具との連結孔を
有する延線用金具本体と、一側に前記延線用金具本体と
回動可能に連結する連結部を設けると共に、他側に端部
へ取付環を形成した副割ワイヤーを含む連結部品類との
連結部を有する副連結金具と、一側に前記延線用金具本
体と回動可能に連結する連結部を設け、他側に端部へ取
付環を形成した支えワイヤーとの連結部を設け、これら
両連結部の中間へ前記副連結金具と前記延線用金具とを
連結する連結軸の挿入が可能な抜き孔を設けた支えワイ
ヤー連結金具とによりプレハブ延線用金具を構成するこ
とを特徴とする。(Means for Solving the Problems) In order to solve the above problems, in the present invention, a connecting portion with a main split wire having an attachment ring formed at one end is provided on one side, and a sub connecting is provided on the other side. A wire extension metal fitting body having a connection portion with the metal fitting and having a connection hole with the support wire connection metal fitting in the middle of the both connection portions, and a connection portion rotatably connected to the wire extension metal fitting body on one side. And a sub connecting metal fitting having a connecting portion with a connecting part including a sub split wire having an attachment ring formed on the other end on the other side, and rotatably connected to the main body for wire drawing on one side. A connecting portion is provided, and a connecting portion with a supporting wire having an attachment ring formed on the other end is provided on the other side, and a connecting shaft for connecting the sub-connecting metal fitting and the wire-drawing metal fitting is inserted in the middle of these two connecting parts. Prefabricated wire fittings with support wire connection fittings that have holes that allow Is configured.
さらに、前記プレハブ延線用金具に、支えワイヤー連
結金具の延線用金具本体との連結部を深溝クレビス状の
連結部とすると共に、そのクレビス部の両側片部へ抜け
孔を設けたことを特徴とする。Further, in the prefabricated wire extension metal fitting, the connection portion of the support wire connection metal fitting with the wire extension metal fitting body is a deep groove clevis-shaped connection portion, and through holes are provided in both side portions of the clevis portion. Characterize.
（作用） 本発明のプレハブ延線用金具は上述の通りであるか
ら、延線する場合、前方の線条と連結されている主割ワ
イヤーと支えワイヤーとの間に設けられ、その連結の仕
方は、延線用金具本体の割ワイヤー連結部へ端部に取付
環を形成した主割ワイヤー後端が連結され、この延線用
金具本体へ連結されている支えワイヤー連結金具の支え
ワイヤー連結部へ端部に取付環を形成した支えワイヤー
が連結される。また未延線線条端末部の耐張クランプと
前記割ワイヤーの後端との間を連結部品類（例えばカム
アロングレス金具，端部に取付環を形成した副割ワイヤ
ー等）で連結する場合、延線用金具本体の副連結金具用
の連結部へ、前記副連結金具の延線用金具本体との連結
部を連結すると共に、連結部品類連結部へ例えば副割ワ
イヤーを取付ける。その延線用金具本体と副連結金具と
の連結は、支えワイヤー連結金具に抜き孔が設けてある
ので、この孔から連結軸を挿入することにより連結が可
能となる。(Operation) Since the prefabricated wire extension fitting of the present invention is as described above, when extending, it is provided between the main split wire and the support wire that are connected to the front wire, and the method of connection. Is the support wire connecting part of the support wire connecting metal fitting that is connected to the split wire connecting part of the wire drawing metal fitting body, the rear end of the main split wire with the mounting ring formed at the end is connected A supporting wire having an attachment ring formed at the end is connected. In addition, when connecting the tension clamp at the end of the unstretched wire and the rear end of the split wire with connecting parts (such as cam-alongless metal fittings, sub split wire with a mounting ring formed at the end) While connecting the connecting portion of the sub-connecting metal fitting to the main body of the extending metal fitting to the connecting portion for the sub-connecting metal fitting of the main body of the wire-drawing metal fitting, for example, a sub split wire is attached to the connecting part connecting portion. As for the connection between the wire-drawing metal fitting body and the sub-connecting metal fitting, since the support wire connecting metal fitting is provided with a through hole, the connection can be made by inserting the connecting shaft through this hole.
（実施例） 以下、図面について本発明の一実施例を説明する。Embodiment An embodiment of the present invention will be described below with reference to the drawings.
本発明の架線用金具は、延線用金具本体Ａと、副連結
金具Ｂと、支えワイヤー連結金具Ｃとによって構成す
る。延線用金具本体Ａは、一側にクレビス状で、そのク
レビス溝20a内へローラー20bを軸20cにより枢支してな
る主割ワイヤー連結部20を設けると共に、他側に副連結
金具Ｂとのクレビス状連結部21を設ける。21aはそのク
レビス溝、21bは軸である。また前記両連結部20,21の中
間へ支えワイヤー連結金具Ｃとの連結孔22を設けて延線
用金具本体Ａを形成する。The metal fitting for an overhead wire of the present invention is composed of a wire-drawing metal fitting body A, a sub connecting metal fitting B, and a supporting wire connecting metal fitting C. The main body A of the wire-drawing metal fitting is clevis-shaped on one side, and a main split wire connecting portion 20 in which a roller 20b is pivotally supported by a shaft 20c is provided in the clevis groove 20a, and a sub-connecting metal fitting B is provided on the other side. The clevis-shaped connecting portion 21 is provided. 21a is the clevis groove, and 21b is the shaft. Further, a connecting hole 22 for connecting the supporting wire connecting fitting C is provided in the middle of both the connecting portions 20 and 21 to form a wire-drawing fitting main body A.
副連結金具Ｂは、一側に延線用金具本体Ａのクレビス
状連結部21と回動可能に連結する連結孔23aを有する舌
片状の連結部23を設けると共に、他側にクレビス状で、
そのクレビス溝24a内へローラー24bが軸24cにより枢支
されている連結部品類連結部24を設けて形成する。The sub-connecting metal fitting B is provided with a tongue-like connecting portion 23 having a connecting hole 23a for rotatably connecting to the clevis-like connecting portion 21 of the wire-drawing metal body A on one side, and a clevis-like connecting portion on the other side. ,
A roller 24b is formed in the clevis groove 24a by providing a connecting part connecting portion 24 in which a roller 24b is pivotally supported by a shaft 24c.
また支えワイヤー連結金具Ｃは、一側に前記延線用金
具本体Ａの連結孔22を介して回動可能に連結する深溝25
aと軸25bとよりなるクレビス状の連結部25を設け、他側
に支えワイヤーを連結するクレビス状で、そのクレビス
溝26aにローラー26bを軸26cにより枢支した支えワイヤ
ー連結部26を設け、これら両連結部25,26の中間におけ
る深溝クレビス状の連結部のクレビス部の両側片部に前
記副連結金具Ｂと前記延線用金具本体Ａとを連結する連
結軸21bの挿入が可能な抜き孔27を設けて形成する。そ
して前記連結金具A,Bは、支えワイヤー連結金具Ｃの深
溝クレビス状の連結部25の溝25a内に納まるようになっ
ており、又、各連結金具A,B,Cは所定の範囲内では相互
に干渉することなく回動が可能なようになっている。Further, the support wire connecting fitting C has a deep groove 25 rotatably connected to one side via the connecting hole 22 of the wire drawing fitting main body A.
A clevis-shaped connecting portion 25 including a and a shaft 25b is provided, and a clevis-like connecting portion for connecting the supporting wire is provided on the other side, and a supporting wire connecting portion 26 in which a roller 26b is pivotally supported by a shaft 26c is provided in the clevis groove 26a. A connecting shaft 21b for connecting the sub-connecting metal fitting B and the wire-drawing metal fitting body A can be inserted into both sides of the clevis portion of the deep groove clevis-shaped connecting portion in the middle of the two connecting portions 25, 26. The hole 27 is provided and formed. The connecting metal fittings A, B are designed to be housed in the groove 25a of the deep groove clevis-like connecting portion 25 of the supporting wire connecting metal fitting C, and each connecting metal fitting A, B, C is within a predetermined range. Rotation is possible without interfering with each other.
本発明のプレハブ延線用金具は上述のように構成した
から、この金具を使用して延線する場合第２図に示すよ
うになる。まず第２図（ａ）に示すように線条延線車７
の前方で線条３を切断する。Since the prefabricated wire-drawing metal fitting of the present invention is configured as described above, when the metal wire is used to extend the wire, it becomes as shown in FIG. First of all, as shown in FIG.
Cut the filament 3 in front of.
そのとき切断する前に線条３をカムアロング14a,ワイ
ヤー15,巻上げ機（例えばレバーブロック）（図示せ
ず）等からなる線条仮止工具14のカムアロング14aによ
って仮止めする。At that time, before cutting, the wire 3 is temporarily fixed by a cam along 14a of a wire temporary fixing tool 14 including a cam along 14a, a wire 15, a winding machine (for example, a lever block) (not shown), and the like.
そして切断された線条３の線条端末部へ耐張クランプ
（圧縮クランプ）４を取付け、その線条３へ取付けられ
ている圧縮クランプ４へ連結金具（カムアロングを使わ
ず緊線を行う場合は、カムアロングレス金具）16を取付
け、そのカムアロングレス金具16へワイヤーコネクター
17を取付け、そのワイヤーコネクター17へワイヤー延線
車８に巻回されている主割ワイヤー５の端部を連結す
る。Then, a tension clamp (compression clamp) 4 is attached to the end portion of the cut wire 3 and a connecting metal fitting (when tightening the wire without using the cam along is connected to the compression clamp 4 attached to the wire 3). , Cam-alongless metal fitting 16) and wire connector to the cam-alongless metal fitting 16
17 is attached, and the end of the main split wire 5 wound around the wire drawing wheel 8 is connected to the wire connector 17.
そしてそれらを連結した後、第２図（ｂ）に示すよう
に、前記線条仮止工具14の巻上げ機（例えばレバーブロ
ック）を緩めるか、又は、ワイヤー延線車８を逆転させ
て、延線中の線条３へ張力を加え、その後第２図（ｃ）
のように前記線条仮止工具14を取外す。Then, after connecting them, as shown in FIG. 2 (b), the winding machine (for example, a lever block) of the wire temporary fixing tool 14 is loosened or the wire drawing wheel 8 is reversed to extend the wire. Tension is applied to the filament 3 in the wire, and then Fig. 2 (c).
Remove the line fixing tool 14 as described above.
又、主割ワイヤー５の後端へは本発明プレハブ延線用
金具の延線用金具本体Ａを接続すると共に、この本体Ａ
に支えワイヤー連結金具Ｃを連結し、この金具Ｃの後部
に支えワイヤー18を接続する。なお、この支えワイヤー
18は、次の鉄塔の所へ用いる主割ワイヤー５を使う事も
可能である。そしてそれらは、ワイヤー延線車８の後方
で連結され、延線の工程でワイヤー延線車８を通過す
る。続いてワイヤー巻取り装置11（第３図参照）を作動
させて主割ワイヤー５を延線する。主割ワイヤー５が延
線されてワイヤー延線車８の前方へ金具A,Cが出た状態
で、（第２図（ｃ）参照），未延線線条端末部の圧縮ク
ランプ４と主割ワイヤー５の後端とを、第２図（ｃ）
（ｄ）に示すように、圧縮クランプ４側からカムアロン
グレス金具16,ワイヤーコネクター17,副割ワイヤー19及
び本発明のプレハブ延線用金具A,B,Cを介して連結す
る。Further, to the rear end of the main split wire 5, the wire drawing metal fitting body A of the prefabricated wire drawing fitting of the present invention is connected, and
The support wire connecting fitting C is connected to the support wire C, and the support wire 18 is connected to the rear portion of the fitting C. In addition, this support wire
For 18, it is also possible to use the main split wire 5 used for the next steel tower. Then, they are connected behind the wire drawing wheel 8 and pass through the wire drawing wheel 8 in the process of drawing the wire. Then, the wire winding device 11 (see FIG. 3) is operated to extend the main split wire 5. With the main split wire 5 being extended and the metal fittings A and C protruding toward the front of the wire drawing vehicle 8, (see FIG. 2 (c)), the compression clamp 4 at the end of the undrawn wire strip and the main The rear end of the split wire 5 is shown in FIG. 2 (c).
As shown in (d), the compression clamp 4 side is connected via the cam along metal fitting 16, the wire connector 17, the auxiliary split wire 19 and the prefabricated wire extending metal fittings A, B and C of the present invention.
すなわち第２図（ｄ）に示すように、副連結金具Ｂの
連結部23を延線用金具本体Ａの溝21a内に挿入すると共
に、抜き孔27を介して軸21bを挿通して金具A,Bを連結す
る。このようにして主割ワイヤー５と副割ワイヤー19と
を連結したならば、続いてワイヤー延線車８へ巻回され
ているワイヤーを緩めて第２図（ｅ）に示すように未延
線線条３へ張力を加える。その後、第２図（ｄ）の支え
ワイヤー18と支えワイヤー連結金具Ｃとをはずして第２
図（ｅ）の状態にする。That is, as shown in FIG. 2 (d), the connecting portion 23 of the sub-connecting metal fitting B is inserted into the groove 21a of the metal fitting body A for wire drawing, and the shaft 21b is inserted through the hole 27 so that the metal fitting A is inserted. , And B are connected. After connecting the main split wire 5 and the sub split wire 19 in this way, the wire wound around the wire drawing wheel 8 is loosened, and the undrawn wire is drawn as shown in FIG. 2 (e). Apply tension to filament 3. After that, the supporting wire 18 and the supporting wire connecting metal C shown in FIG.
The state shown in FIG.
（発明の効果） 上述のように本発明のプレハブ延線用金具は線条と連
結されている主割ワイヤーと支えワイヤーもしくは副割
ワイヤーとの間に設けられ、その連結の仕方は、延線用
金具本体Ａの割ワイヤー連結部20へ主割ワイヤー５の後
端部が連結され、延線用金具本体Ａへ連結されている支
えワイヤー連結金具Ｃの支えワイヤー連結部26へ支えワ
イヤー18が連結されて延線される。また未延線線条端末
部の耐張クランプ４と前記主割ワイヤー５の後端との間
を例えばカムアロングレス金具16,副割ワイヤー19等で
連結する場合、延線用金具本体Ａの連結部21へ、副連結
金具Ｂの連結部23を連結すると共に、連結部24へ例えば
副割ワイヤー19を接続すれば良い。又、その延線用金具
本体Ａと副連結金具Ｂとの連結は、支えワイヤー連結金
具Ｃに設けられている抜き孔27を介して連結軸21bを挿
入することによって連結が可能となるので、作業が簡単
且つ迅速に行える。したがって本発明によれば、張力の
加わっている割ワイヤー５と未延線線条３との間を例え
ばカムアロングレス金具16や割ワイヤー19等で簡単且つ
迅速に連結できるので、線条の連結を容易にすることが
できる。また本発明によれば、線条の連結後、未延線線
条へ張力を移動させる場合、架線用金具が損傷する問題
や拗れでワイヤーコネクター等へ強度的な問題を発生さ
せるという問題も解決されるというすぐれた効果が得ら
れる。(Effects of the Invention) As described above, the prefabricated wire extension fitting of the present invention is provided between the main split wire and the support wire or the sub split wire that are connected to the filament, and the manner of connection is determined by the extension wire. The rear end of the main split wire 5 is connected to the split wire connection portion 20 of the metal fitting body A, and the support wire 18 is connected to the support wire connection portion 26 of the support wire connection metal fitting C that is connected to the wire extension metal body A. It is connected and extended. Further, when the tension clamp 4 at the end of the unstretched wire and the rear end of the main split wire 5 are connected by, for example, a cam alongside metal fitting 16 and a sub split wire 19, etc., The connecting portion 23 of the sub connecting fitting B may be connected to the connecting portion 21, and the auxiliary split wire 19 may be connected to the connecting portion 24, for example. Further, the connection between the wire-drawing metal fitting body A and the sub-connecting metal fitting B can be made by inserting the connecting shaft 21b through the hole 27 provided in the support wire connecting metal fitting C. Work can be done easily and quickly. Therefore, according to the present invention, the split wire 5 to which the tension is applied and the unstretched wire 3 can be easily and quickly connected by, for example, the cam alongless metal fitting 16 or the split wire 19, so that the connection of the wire is performed. Can be facilitated. Further, according to the present invention, when the tension is transferred to the unstretched wire after connecting the wires, there is also a problem that the metal fitting for the overhead wire is damaged or a problem that the wire connector or the like has a problem of strength due to a break. The excellent effect of being solved is obtained.
第１図（ａ）は本発明の架線用金具の組立図、 同図（ｂ）はその延線用金具本体を一部断面で示す立面
図、 同図（ｃ）はその平面図、 同図（ｄ）は副連結金具の立面図、 同図（ｅ）はその平断面図、 同図（ｆ）は支えワイヤー連結金具の立面図、 同図（ｇ）はその平断面図、 第２図（ａ）〜（ｅ）は本発明の架線用金具を使用する
延線工法の説明図、 第３図はプレハブ架線の説明図、 第４図（ａ）〜（ｅ）は改善した延線工法の一例を示す
説明図、 第５図（ａ）〜（ｅ）は改善した延線工法の他の例を示
す説明図、 第６図（ａ）〜（ｅ）は従来の延線工法の一例を示す説
明図、 第７図（ａ）〜（ｅ）は従来の延線工法の他の例を示す
説明図である。 Ａ……延線用金具本体、20……主割ワイヤー連結部 21……連結部、22……連結孔 Ｂ……副連結金具、23……連結部 24……連結部品類連結部 Ｃ……支えワイヤー連結金具 25……連結部 26……支えワイヤー連結部 27……抜き孔FIG. 1 (a) is an assembly view of a metal fitting for an overhead wire of the present invention, FIG. 1 (b) is an elevational view showing a partial cross section of a wire-drawing metal fitting body, and FIG. 1 (c) is a plan view thereof. Figure (d) is an elevation view of the sub-connecting metal fitting, (e) is a plan sectional view thereof, (f) is an elevation view of the support wire connecting metal fitting, (g) is a plan sectional view thereof, 2 (a) to (e) are explanatory views of a wire-drawing method using the overhead wire fitting of the present invention, FIG. 3 is an explanatory view of a prefabricated overhead wire, and FIGS. 4 (a) to (e) are improved. An explanatory view showing an example of a wire drawing method, Drawing 5 (a)-(e) is an explanatory view showing other examples of an improved wire drawing method, and Drawing 6 (a)-(e) is a conventional wire drawing method. An explanatory view showing an example of a construction method, and Drawing 7 (a)-(e) are explanatory views showing other examples of the conventional wire drawing construction method. A: metal wire extension body, 20: main split wire connection part 21: connection part, 22: connection hole B: sub connection metal part, 23: connection part 24: connection parts connection part C ... … Support wire connection metal fitting 25 …… Connection part 26 …… Support wire connection part 27 …… Hole
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原口 昌士 愛知県豊川市御油町炮六土38番地の10 (72)発明者 大津 由紀夫 愛知県尾西市起字西生出13番地の１ (72)発明者 長谷山 良和 静岡県小笠郡菊川町本所1031番地の８ (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 (56)参考文献 特開 昭61−207113（ＪＰ，Ａ) 実開 昭55−69318（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Masashi Haraguchi 10 at 38 Rokudoku, Miyu-cho, Toyokawa City, Aichi Prefecture (72) Inventor Yukio Otsu 1 at 72, birth birth number, Bisai City, Aichi Prefecture (72) Invention Person Haseyama Yoshikazu 831, 1031, Honjo, Kikugawa-cho, Ogasa-gun, Shizuoka Prefecture (72) Inventor Masahiko Suzuki 1-, 30 Okubayashi, Ohno, Horai-cho, Minami Shitara-gun, Aichi (56) References JP-A-61-207113 (JP, 61-207113) A) Actual development Sho 55-69318 (JP, U)
Claims (2)
ーとの連結部を設けると共に、他側に副連結金具との連
結部を設け、これら両連結部の中間へ支えワイヤー連結
金具との連結孔を有する延線用金具本体と、一側に前記
延線用金具本体と回動可能に連結する連結部を設けると
共に、他側に端部へ取付環を形成した副割ワイヤーを含
む連結部品類との連結部を有する副連結金具と、一側に
前記延線用金具本体と回動可能に連結する連結部を設
け、他側に端部へ取付環を形成した支えワイヤーとの連
結部を設け、これら両連結部の中間へ前記副連結金具と
前記延線用金具本体とを連結する連結軸の挿入が可能な
抜き孔を設けた支えワイヤー連結金具とからなるプレハ
ブ延線用金具。1. A connecting portion with a main split wire having an attachment ring formed on one end thereof is provided on one side, and a connecting portion with a sub connecting metal fitting is provided on the other side, and a supporting wire connection is provided between these connecting portions. A wire split metal body having a connection hole with a metal fitting, and a split wire provided on one side with a connecting portion for rotatably connecting with the metal wire extension body, and on the other side with a mounting ring formed at the end. A sub-connecting metal fitting having a connecting portion with a connecting part including a connecting wire, a connecting portion rotatably connected to the main body of the wire-drawing metal body on one side, and a supporting ring on the other side of which a mounting ring is formed. And a support wire connecting metal fitting provided with a through hole into which a connecting shaft for connecting the sub-connecting metal fitting and the wire-drawing metal body is provided in the middle of both the connecting portions. Wire fittings.
の連結部を深溝クレビス状の連結部とすると共に、その
クレビス部の両側片部へ抜き孔を設けた特許請求の範囲
第１項記載のプレハブ延線用金具。2. The method according to claim 1, wherein the connecting portion of the supporting wire connecting fitting with the body of the metal fitting for extending wire is a deep groove clevis-like connecting portion, and holes are provided in both side portions of the clevis portion. Prefabricated wire extension fittings described.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12025987A JPH0817528B2 (en) | 1987-05-19 | 1987-05-19 | Prefabricated wire fittings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12025987A JPH0817528B2 (en) | 1987-05-19 | 1987-05-19 | Prefabricated wire fittings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63287311A JPS63287311A (en) | 1988-11-24 |
| JPH0817528B2 true JPH0817528B2 (en) | 1996-02-21 |
Family
ID=14781775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12025987A Expired - Fee Related JPH0817528B2 (en) | 1987-05-19 | 1987-05-19 | Prefabricated wire fittings |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0817528B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5847778Y2 (en) * | 1978-11-08 | 1983-10-31 | 大同電機工業株式会社 | Insulator metal fittings used with tension wires |
| JPS61207113A (en) * | 1985-03-12 | 1986-09-13 | 旭テック株式会社 | Connecting tool for extending and tightening wire concurrently |
-
1987
- 1987-05-19 JP JP12025987A patent/JPH0817528B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS63287311A (en) | 1988-11-24 |
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