JPS6169316A - Cable switching method - Google Patents
Cable switching methodInfo
- Publication number
- JPS6169316A JPS6169316A JP18934784A JP18934784A JPS6169316A JP S6169316 A JPS6169316 A JP S6169316A JP 18934784 A JP18934784 A JP 18934784A JP 18934784 A JP18934784 A JP 18934784A JP S6169316 A JPS6169316 A JP S6169316A
- Authority
- JP
- Japan
- Prior art keywords
- contact
- variable resistor
- connector
- connecting device
- cable
- 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.)
- Pending
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Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、既に布設されているケーブルの一部を別のケ
ーブルに、回線を断することなく切り換えるケーブル切
換方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a cable switching method for switching a part of an already laid cable to another cable without disconnecting the line.
従来より、既に布設されているケーブルを別の新しいケ
ーブルに、回線を断することなく、すなわち、無瞬断で
切り換える方法として、第４図の方法が一般的である。Conventionally, the method shown in FIG. 4 has been common as a method for switching an already installed cable to a new cable without disconnecting the line, that is, without momentary interruption.
これは手ひねり方法といわれているもので、まず、既に
布設されている既設ケーブル１の切り換え部の外被を必
要長剥ぎ取り、導体２に絶縁体３が被覆されてなる絶縁
電線４ （以下現在使用されている線という意味で活線
という）を露出せしめ、該活線４の絶縁体３の一部を剥
ぎ取り、導体２を露出させる。また、前記既設ケーブル
１の一部に替えて布設する切換ケーブル５の絶縁電線６
（以下切換線という）に予め接続部保護用のスリーブ
７を通しておき、この切換線６の先端部の絶縁体３を所
定長剥ぎ取り導体２を露出させる。しかる後、この切換
線６の導体２を前記既設ケーブル１の導体露出部に沿わ
せた状態で両者を一緒に手でひねって接続し、次ぎに、
既−設ケーブル１の切り離す側、例えば、第４図におい
て右側の既設ケーブル１を切り離すとすれば、切断位置
８で活線４を切断する。最後に、この接続部を前記スリ
ーブ７で覆い、活線一本の切り換えが完了する。もちろ
ノい既設ケーブル１内の活線数は複数本あるから、順次
この作業を繰り返す。This is called a hand-twisting method. First, the required length of the outer covering of the switching section of the existing cable 1 that has been laid is stripped off, and the insulated wire 4 (hereinafter referred to as A live wire (in the sense of a wire currently used) is exposed, and a part of the insulator 3 of the live wire 4 is stripped off to expose the conductor 2. Also, an insulated wire 6 of a switching cable 5 to be laid in place of a part of the existing cable 1.
(hereinafter referred to as a switching wire) is passed through a sleeve 7 for protecting the connecting portion in advance, and a predetermined length of the insulator 3 at the tip of the switching wire 6 is stripped off to expose the conductor 2. After that, with the conductor 2 of the switching line 6 along the exposed conductor part of the existing cable 1, twist the two together by hand to connect them, and then,
If the existing cable 1 is to be cut off, for example, the right side of the existing cable 1 in FIG. 4, the live wire 4 is cut at the cutting position 8. Finally, this connection portion is covered with the sleeve 7, and switching of one live wire is completed. Of course, there are multiple live wires in the existing cable 1, so this process is repeated one by one.
ところで、この手ひねり方法という従来の切換方法にお
いては、作業に時間がかかる、熟練者でないとできない
という問題に加えて、接続点においてエラービットが多
数発生し、いわゆるデジタル通信方式に使用するには信
頼性に欠けるという問題もある。By the way, the conventional switching method of hand-twisting has the problem that it is time-consuming and can only be done by an experienced person.In addition, a large number of error bits occur at the connection point, making it unsuitable for use in so-called digital communication systems. There is also the problem of lack of reliability.
前記問題に鑑み、本発明の目的は、熟練者でなくとも短
時間で切換作業ができ、しかも接続点でエラービットも
発生せず、もって信頼性の高いケーブル切換方法を提供
することにある。In view of the above problems, an object of the present invention is to provide a highly reliable cable switching method that allows even non-experts to perform switching work in a short time, does not generate error bits at connection points, and is highly reliable.
前記目的を達成すべく、本発明のケーブル切換方法は、
既設ケーブルの活線に可変抵抗器付第１接続具の一つの
接点ｇを割り込ませ、線番対照の確認後、該可変抵抗器
付第１接続具の他の接点を三つの接点ａ、ｂ、ｃを有す
る第１コネクタの前記三つの接点のうちの一つの接点を
に割り込ませ、前記可変抵抗器付第１接続具の可変抵抗
器を零の抵抗値にした状態で、前記可変抵抗器付第１接
続具の一端の接点ｇを割り込ませた位置に対して間隔を
おいて前記第１コネクタの別の接点ａを前記活線に割り
込ませ、前記接点ａの割り込みが完了したら、前記活線
の接点ｇと接点ａを割り込ませた内側を切り離し、活線
、接点ｇ、可変抵抗器付第１接続具、接点ｂ、、接点ａ
、活線とつながる迂回路を形成し、しかる後、三つの接
点ｅ、ｆ、ｄを有し、前記三つの接点のうちの一つの接
点ｆに切換ケーブルの切換線が接続されている第２コネ
クタの別の接点ｅに、一端が前記可変抵抗器付第１接続
具の可変抵抗器と前記接点す間に接続されている可変抵
抗器付第２接続具の他端の接点を、該可変抵抗器付第２
接続具の可変抵抗器を無限大の抵抗値にした状態で割り
込ませ、次ぎに前記可変抵抗器付第２接続具の可変抵抗
器の抵抗を無限大から零に変化させ、続いて前記可変抵
抗器付第１接続具の可変抵抗器の抵抗を零から無限大に
変化させ、無限大になったところで前記第１コネクタの
残りの接点Ｃと第２コネクタの残りの接点ｄとを接続し
て、しかる後前記可変抵抗器付第１接続具と可変抵抗器
付第２接続具とを取り外し、既設ケーブルの一′部を切
換ケーブルに切り換えることを特徴とするものである。In order to achieve the above object, the cable switching method of the present invention includes:
Insert one contact g of the first connecting device with variable resistor into the live wire of the existing cable, and after confirming the wire number, connect the other contact of the first connecting device with variable resistor to three contacts a and b. , c of the three contacts of the first connector, and the variable resistor of the first connecting device with variable resistor has a zero resistance value, and the variable resistor Another contact a of the first connector is inserted into the live wire at a distance from the position where the contact g at one end of the attached first connector is inserted, and when the interruption of the contact a is completed, the contact g is inserted into the live wire. Separate the inside of the wire where contact g and contact a are inserted, and connect the live wire, contact g, first connector with variable resistor, contact b, and contact a.
, forming a detour connected to the live wire, and then having three contacts e, f, d, one of the three contacts, contact f, to which the switching line of the switching cable is connected. Connect a contact at the other end of the second connecting device with a variable resistor, one end of which is connected between the variable resistor and the contact of the first connecting device with a variable resistor, to another contact e of the connector. 2nd with resistor
The variable resistor of the connecting device is set to an infinite resistance value, and then the resistance of the variable resistor of the second connecting device with the variable resistor is changed from infinity to zero, and then the variable resistor is changed to zero. Changing the resistance of the variable resistor of the first connector with the device from zero to infinity, and when it reaches infinity, connect the remaining contact C of the first connector and the remaining contact d of the second connector. Then, the first connecting device with a variable resistor and the second connecting device with a variable resistor are removed, and a portion of the existing cable is switched to a switching cable.
本発明の実施例を図を参照して詳細に説明する。 Embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明のケーブル切換方法の一実施例を示す配
線図、第２図はその具体例を示す概略図、第３図は前記
第２図のコネクタ部分の拡大図である。これらの図を用
いて本発明のケーブル切換方法を以下に説明する。FIG. 1 is a wiring diagram showing an embodiment of the cable switching method of the present invention, FIG. 2 is a schematic diagram showing a specific example thereof, and FIG. 3 is an enlarged view of the connector portion of FIG. 2. The cable switching method of the present invention will be explained below using these figures.
（１）既設ケーブル１の活線４に可変抵抗器付第１接続
具１０の一方の端のスリット端子からなる接点ｇ１１を
割り込ませて導通させ、線番対照を局との間でＩ認後、
該可変抵抗器付第１接続具１０の他端のフォーク端子か
らなる接点１２を、三つの接点ａ１３、接点ｂ１４、接
点ＣＩ５を有する第１コネクタ３０の前記三つの接点の
うちの一つで板状の接点ｂ１４（第２図では図示されて
いないが第３図にその形状が示されている。）に割り込
ませ導通をとる。(1) After connecting the live wire 4 of the existing cable 1 with the contact g11 consisting of a slit terminal at one end of the first connecting device 10 with a variable resistor and making it conductive, the wire number is confirmed with the station. ,
The contact 12 consisting of a fork terminal at the other end of the first connector with variable resistor 10 is connected to one of the three contacts of the first connector 30 having three contacts a13, b14, and contact CI5. A shaped contact b14 (not shown in FIG. 2, but its shape is shown in FIG. 3) is inserted to establish conduction.
（２）前記可変抵抗器付第１接続具１０の可変抵抗器１
６を零の抵抗値にした状態で、前記可変抵抗器（］第１
続続具１０の一端の接点ａｌｌを割り込ませた位置に対
して間隔をおいて、前記第１コネクタ３０の別の接点で
、スリット状端子からなる接点ａ１３を前記活線４に割
り込ませて導通をとり、前記接点ａ１３の割り込みが完
了したら、前記活線４の接点ｇ１１と接点ａ１３を割り
込ませた内側を切断位置１７で切り離し、活線４、接点
ｇｌｌ、可変抵抗器付接続具１０、接点ｂ１４、、接点
ａ１３、活線４とつながる迂回路を形成する。(2) Variable resistor 1 of the first connecting device 10 with variable resistor
6 to zero resistance value, the variable resistor (] first
A contact a13 made of a slit-shaped terminal is inserted into the live wire 4 at another contact point of the first connector 30 at a distance from the position where the contact all at one end of the connecting tool 10 is inserted to establish continuity. When the interruption of the contact a13 is completed, the inside of the live wire 4 where the contact g11 and the contact a13 are interrupted is cut off at the cutting position 17, and the live wire 4, the contact gll, the connecting device with variable resistor 10, and the contact b14 are removed. , , form a detour connected to the contact a13 and the live wire 4.
（３）シかる後、三つの接点ｄ１８、接点ｅ１９、接点
ｆ２０を有し、前記三つの接点のうちの一つのスリット
状端子からなる接点ｆ２０に、切換ケーブル５の切換線
６が接続されている第２コネクタ４０の別の接点で、板
状端子からなる接点ｅ１９に、一端が前′□
記可変抵抗器付第１接続具１０の可変抵抗器１６と前
記接点ｂｌＡ間に接続されている可変抵抗器付第２接続
具２１の他端のフォーク端子からなる接点２２を、該可
変抵抗器付第２接続具２１の可変抵抗器２３を無限大の
抵抗値にした状態で割り込ませ導通をとる。(3) After the switching, the switching line 6 of the switching cable 5 is connected to the contact f20, which has three contacts d18, e19, and f20, and one of the three contacts is a slit-shaped terminal. Another contact point of the second connector 40, which is connected to the contact e19 made of a plate terminal, has one end connected to the front '
The contact 22 consisting of the fork terminal at the other end of the second connecting device 21 with a variable resistor connected between the variable resistor 16 of the first connecting device 10 with a variable resistor and the contact blA is connected to the variable resistor. The variable resistor 23 of the attached second connector 21 is set to an infinite resistance value and then interrupted to establish continuity.
（４）次ぎに、前記可変抵抗器付第２接続具２１の可変
抵抗器２３の抵抗を無限大から零に変化させ、続いて前
記可変抵抗器付第１接続具１０の可変抵抗器１６の抵抗
を零から無限大に変化させ、無限大になったところで前
記第１コネクタ３０の残りの接点で、フォーク端子から
なる接点Ｃ１５と、同じくフォーク端子からなる第２コ
ネクタ４０の残りの接点ｄ１８とを接続する。(4) Next, change the resistance of the variable resistor 23 of the second connecting device 21 with a variable resistor from infinity to zero, and then change the resistance of the variable resistor 16 of the first connecting device 10 with a variable resistor. The resistance is changed from zero to infinity, and when it reaches infinity, the remaining contacts of the first connector 30 are the contact C15 made of a fork terminal, and the remaining contact d18 of the second connector 40 also made of a fork terminal. Connect.
（５）シかる後、可変抵抗器付第１接続具１０と可変抵
抗器付第２接続具２１とを各接点から取り外し、既設ケ
ーブル１の一部を切換ケーブル５に切り換える。(5) After switching, the first connecting device 10 with a variable resistor and the second connecting device 21 with a variable resistor are removed from each contact, and a part of the existing cable 1 is switched to the switching cable 5.
ここで、前記第１コネクタ３０および第２コネクタ４０
に使用されている。接点の形状は第３図に示すようにな
っている。すなわち、一端にスリット端子からなる接点
ａ１．３を、他端にフォーク端子からなる接点ｃ１５を
有し、中央部が板状端子からなる接点ｂ１４からなり、
前記接点ａ１３と接点ｃ１５とが前記接点ｂ１４に対し
て同一方向または逆方向に４５０傾いた状態で一体にな
っている。それ故、第１コネクタ３０に使用する前記接
点を、上下を逆転した状態で第２コネクタ４０に装着す
れば、第３図の如く接点Ｃ１５と接点ｄ１８とが互いに
噛み合うと共に、板状の端子からなる接点ｂ１４と接点
ｅ１９とが常に同一方向を向く。それ故、第３図におい
て符号３１．３２で示す各コネクタ３０．４０の窓を通
して、可変抵抗器付第１接続具１０、可変抵抗器付第２
接続具２１の各接点１２．２２を同一方向から差し込め
る。Here, the first connector 30 and the second connector 40
used in The shape of the contact point is as shown in FIG. That is, it has a contact a1.3 made of a slit terminal at one end, a contact c15 made of a fork terminal at the other end, and a contact b14 made of a plate terminal in the center,
The contact a13 and the contact c15 are integrated in a state where they are inclined by 450 in the same direction or in the opposite direction with respect to the contact b14. Therefore, if the contacts used in the first connector 30 are attached to the second connector 40 in an upside-down state, the contacts C15 and d18 will mesh with each other as shown in FIG. The contact b14 and the contact e19 always face the same direction. Therefore, through the windows of each connector 30, 40, indicated by reference numerals 31, 32 in FIG.
Each contact 12.22 of the connector 21 can be inserted from the same direction.
以上に示した本発明のケーブル切換方法によれば、簡単
なコネクタと接続具を使用するだけで、既設ケーブルの
一部を切換ケーブルに回線の断なくして、すなわち、無
瞬断にて容易に切り換えることができる。しかもコネク
タを使用しているため切換作業は簡単かつ熟練度を必要
とせず、加えて、かく接点での接触抵抗が安定している
ため、切り換え時にエラービットも発生しない。According to the cable switching method of the present invention described above, by simply using a simple connector and connection tool, a part of the existing cable can be easily converted into a switching cable without disconnection of the line, that is, without a momentary interruption. Can be switched. Moreover, since a connector is used, the switching operation is easy and does not require much skill.In addition, since the contact resistance at the contacts is stable, no error bits occur during switching.
前述の如く、本発明によれば、熟練者でなくとも短時間
で切換作業ができ、しかも接続点でエラ、−ビットも発
生せず、もって信頼性の高いケーブル切り換えができる
。As described above, according to the present invention, even an unskilled person can carry out the switching work in a short time, and moreover, no errors or bits occur at the connection point, thereby allowing highly reliable cable switching.
第１図は本発明のケーブル切換方法の一実施例を示す配
線図、第２図は前記第１図の配線を具体化するためのコ
ネクタ類の一実施例を示す斜視図、第３図は前記第２図
に示すコネクタ部分の拡大図、第４図は従来のケーブル
切換方法を示す概略回である。Fig. 1 is a wiring diagram showing an embodiment of the cable switching method of the present invention, Fig. 2 is a perspective view showing an embodiment of connectors for realizing the wiring shown in Fig. 1, and Fig. 3 is a wiring diagram showing an embodiment of the cable switching method of the present invention. An enlarged view of the connector portion shown in FIG. 2, and FIG. 4 are schematic views showing a conventional cable switching method.
Claims (1)
接点ｇを割り込ませ、線番対照の確認後、該可変抵抗器
付第１接続具の他の接点を三つの接点ａ、ｂ、ｃを有す
る第１コネクタの前記三つの接点のうちの一つの接点を
に割り込ませ、前記可変抵抗器付第１接続具の可変抵抗
器を零の抵抗値にした状態で、前記可変抵抗器付第１接
続具の一端の接点ｇを割り込ませた位置に対して間隔を
おいて前記第１コネクタの別の接点ａを前記活線に割り
込ませ、前記接点ａの割り込みが完了したら、前記活線
の接点ｇと接点ａを割り込ませた内側を切り離し、活線
、接点ｇ、可変抵抗器付第１接続具、接点ｂ、、接点ａ
、活線とつながる迂回路を形成し、しかる後、三つの接
点ｅ、ｆ、ｄを有し、前記三つの接点のうちの一つの接
点ｆに切換ケーブルの切換線が接続されている第２コネ
クタの別の接点ｅに、一端が前記可変抵抗器付第１接続
具の可変抵抗器と前記接点ｂ間に接続されている可変抵
抗器付第２接続具の他端の接点を、該可変抵抗器付第２
接続具の可変抵抗器を無限大の抵抗値にした状態で割り
込ませ、次ぎに前記可変抵抗器付第２接続具の可変抵抗
器の抵抗を無限大から零に変化させ、続いて前記可変抵
抗器付第１接続具の可変抵抗器の抵抗を零から無限大に
変化させ、無限大になったところで前記第１コネクタの
残りの接点ｃと第２コネクタの残りの接点ｄとを接続し
て、しかる後前記可変抵抗器付第１接続具と可変抵抗器
付第２接続具を取り外し、既設ケーブルの一部を切換ケ
ーブルに切り換えることを特徴とするケーブル切換方法
。Insert one contact g of the first connecting device with variable resistor into the live wire of the existing cable, and after confirming the wire number, connect the other contact of the first connecting device with variable resistor to three contacts a and b. , c of the three contacts of the first connector, and the variable resistor of the first connecting device with variable resistor has a zero resistance value, and the variable resistor Another contact a of the first connector is inserted into the live wire at a distance from the position where the contact g at one end of the attached first connector is inserted, and when the interruption of the contact a is completed, the contact g is inserted into the live wire. Separate the inside of the wire where contact g and contact a are inserted, and connect the live wire, contact g, first connector with variable resistor, contact b, and contact a.
, forming a detour connected to the live wire, and then having three contacts e, f, d, one of the three contacts, contact f, to which the switching line of the switching cable is connected. Connect a contact at the other end of the second connecting device with a variable resistor, one end of which is connected between the variable resistor of the first connecting device with a variable resistor and the contact b, to another contact e of the connector. 2nd with resistor
The variable resistor of the connecting device is set to an infinite resistance value, and then the resistance of the variable resistor of the second connecting device with the variable resistor is changed from infinity to zero, and then the variable resistor is changed to zero. Changing the resistance of the variable resistor of the first connector with the device from zero to infinity, and when it reaches infinity, connect the remaining contact c of the first connector and the remaining contact d of the second connector. . After that, the first connecting device with a variable resistor and the second connecting device with a variable resistor are removed, and a part of the existing cable is switched to a switching cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18934784A JPS6169316A (en) | 1984-09-10 | 1984-09-10 | Cable switching method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18934784A JPS6169316A (en) | 1984-09-10 | 1984-09-10 | Cable switching method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6169316A true JPS6169316A (en) | 1986-04-09 |
Family
ID=16239808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18934784A Pending JPS6169316A (en) | 1984-09-10 | 1984-09-10 | Cable switching method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6169316A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63206105A (en) * | 1987-02-20 | 1988-08-25 | ミネソタ マイニング アンド マニユフアクチユアリング カンパニ− | Method of jointing cable while maintaining electrical continuity |
-
1984
- 1984-09-10 JP JP18934784A patent/JPS6169316A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63206105A (en) * | 1987-02-20 | 1988-08-25 | ミネソタ マイニング アンド マニユフアクチユアリング カンパニ− | Method of jointing cable while maintaining electrical continuity |
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