JPH03193985A - Method for fixing twisted metal wire - Google Patents
Method for fixing twisted metal wireInfo
- Publication number
- JPH03193985A JPH03193985A JP1332402A JP33240289A JPH03193985A JP H03193985 A JPH03193985 A JP H03193985A JP 1332402 A JP1332402 A JP 1332402A JP 33240289 A JP33240289 A JP 33240289A JP H03193985 A JPH03193985 A JP H03193985A
- Authority
- JP
- Japan
- Prior art keywords
- cotter
- conical
- metal wire
- fixing
- twisted metal
- 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.)
- Granted
Links
- 239000002184 metal Substances 0.000 title claims abstract description 27
- 238000000034 method Methods 0.000 title claims description 23
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- BXKDSDJJOVIHMX-UHFFFAOYSA-N edrophonium chloride Chemical compound [Cl-].CC[N+](C)(C)C1=CC=CC(O)=C1 BXKDSDJJOVIHMX-UHFFFAOYSA-N 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は光フアイバケーブルのテンシロンメンバとして
使用される鋼撚線等の金属撚線の固定方法に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for fixing stranded metal wires such as stranded steel wires used as tensilon members of optical fiber cables.
（従来の技術及び解決しようとする課題）金属撚線の固
定方法としては種々の方法がある。第２図〜第５図はそ
の代表的な例を示す。(Prior Art and Problems to Be Solved) There are various methods for fixing stranded metal wires. FIGS. 2 to 5 show typical examples thereof.
第２図は内部に貫通孔を存する固定具本体（２１）の上
記貫通孔に金属撚線（１）を挿通し、側方からネジ（２
２）により固定する方法である。この固定方法は、固定
力に限界があり、金属撚線（１）の破断力のＩＯ％程度
しか固定出来ない。これがため、側方から押えるネジ（
２２）の反対側にぬすみ（２３）を設けて固定力を改善
している例があるが、同じく固定力に限界がある。Figure 2 shows that the stranded metal wire (1) is inserted into the through hole of the fixture body (21) which has a through hole inside, and the screw (2) is inserted from the side.
2). This fixing method has a limited fixing force, and can only fix about 10% of the breaking force of the metal strands (1). Because of this, the screw that is pressed from the side (
There is an example in which a recess (23) is provided on the opposite side of 22) to improve the fixing force, but there is also a limit to the fixing force.
第３図は大型構造物や荷揚げ用ワイヤロープに多用され
ている例で、内部に円錐状の孔を形成した固定具本体（
２４）の上記孔内に金属撚線（りをばらした各素線（１
１）を位置せしめ、上記孔内に溶融鉛（２５）を注入し
て固定する方法である。しかし、この方法は鉛を溶融し
、注入する高熱作業を伴なうため、用途が限られている
。Figure 3 shows an example of a fixture that is often used for large structures and wire ropes for unloading.
Insert each strand (1
1) and fix it by injecting molten lead (25) into the hole. However, this method is of limited use because it involves high-temperature work in which lead is melted and injected.
第４図は内部に円錐状の孔を形成した固定具本体（２４
）の上記穴内に金属撚線（１）を位置せしめ、前記本体
（２４）と金属撚線（１）の間に、前記穴に係合する外
表面を有する分割型のコッタ（２６）を押圧して固定す
る方法である。Figure 4 shows the fixture body (24
), and pressing between the body (24) and the metal strand (1) a split cotter (26) having an outer surface that engages the hole; This is the method of fixing it.
この方法は可成り良好な結果が得られているが、金属撚
線（１）とコッタ（２６）の摩擦係数をある程度以上に
とらないとセルフロックの条件が得られず、又この実現
がなかなか困難である。Although fairly good results have been obtained with this method, self-locking conditions cannot be obtained unless the coefficient of friction between the metal strands (1) and the cotter (26) exceeds a certain level, and it is difficult to achieve this. Have difficulty.
第５図はコツタを用いた他の固定方法で、内部に円錐状
の孔を形成した固定具本体（２４）と、上記孔に係合す
る外表面を持った円錐状のコッタ（２７）との間に、金
属撚線（１）をばらした各素線（１１）を挿入し、コツ
タ（２７）を押圧することによって固定する方法である
。Figure 5 shows another fixing method using a cotter, which includes a fixing device body (24) with a conical hole formed inside, and a conical cotter (27) with an outer surface that engages with the hole. In this method, each strand (11) of the metal stranded wire (1) is inserted into the space between the wires, and the strands (11) are fixed by pressing the cotter (27).
この方法は原理的には良い方法であるが、第５図（ロ）
に示す素線（１１）の広がったところで、各素線（ｔＢ
の位置が偏ったり、不安定になって固定力が安定しない
という問題がある。This method is good in principle, but as shown in Figure 5 (b)
At the point where the wire (11) shown in (11) is spread out, each wire (tB
There is a problem in that the position of the holder is biased or becomes unstable, and the fixing force is not stable.
（課題を解決するための手段）
本発明は上記第５図に示すコツタを用いた固定方法の問
題点を解消した金属撚線の固定方法を提供するもので、
その特徴は、円錐状コツタの外表面あるいは固定具本体
の円錐状孔の内面の金ａ撚線の各素線と接する部分の全
長又はその一部に円周等分割溝を設け、金属撚線をばら
した各素線を上記溝内に位置せしめたことにある。(Means for Solving the Problems) The present invention provides a method for fixing stranded metal wires that solves the problems of the fixing method using a cotter shown in FIG.
The feature is that the outer surface of the conical kotta or the inner surface of the conical hole of the fixture body is provided with grooves divided into equal circumferences on the entire length or a part of the part of the part in contact with each strand of the metal stranded wire. Each of the strands separated from the strands is positioned in the groove.
（作用）
上述の第５図に示す方法では、金属撚線の素線が抜けよ
うとすると、コツタも素線につれて移動し、その結果素
線の締付力が増大するいわゆるセルフロック機構となっ
て素線が切れるまで抜けることがない。しかし、前述の
ように素線の広がったところでは、素線が円周方向のど
の位置に落付くかによって不安定となり、素線の破断荷
重より小さい荷重で外れることがある。(Function) In the method shown in FIG. 5 described above, when the strands of the metal stranded wire try to pull out, the cotter also moves along with the strands, resulting in a so-called self-locking mechanism in which the tightening force of the strands increases. It will not come out until the wire breaks. However, as described above, where the strands are spread out, the strands become unstable depending on where they land in the circumferential direction, and may come off with a load smaller than the breaking load of the strands.
しかるに本発明の固定方法においては、金属素線をばら
した各素線は溝内に位置決めされる。そして上記位置決
め用の溝は、略円周等分割り、又は点対称に各素線が配
置されるように設けてあり、コツタの締付力は全部の素
線に均等にかかることになり、安定した締付力が得られ
る。その結果、前記のセルフロックが確実に実現され、
コンパクトで強固な固定が可能となる。However, in the fixing method of the present invention, each of the separated metal wires is positioned within the groove. The positioning grooves are provided so that the wires are divided approximately equally around the circumference or arranged point-symmetrically, so that the tightening force of the kotta is applied equally to all the wires. Stable tightening force can be obtained. As a result, the above-mentioned self-locking is reliably achieved,
Compact and strong fixation is possible.
（実施例）
第１図は本発明の固定方法の実施例の説明図で、同図（
イ）は形成された固定部の縦断面図、同図（０）は（イ
）図のＸ、−Ｘ、断面図、同図（ハ）は用いるコツタの
一例の外観図である。(Example) Figure 1 is an explanatory diagram of an example of the fixing method of the present invention.
A) is a longitudinal sectional view of the formed fixing part, FIG.
固定具本体（２）は内部に円錐状の孔を有している。コ
ツタ（３）は上記円錐状孔に係合する外表面を有してお
り、その先端部には環状突起（３ａ）を設け、この部分
に素線位置決め用溝（３１）が形成されている。金属撚
線（１）をばらした各素線（１１）は上記固定具本体（
２）の円錐状孔とコツタ（３）の間に挿入され、その先
端部付近は、前記コツタ（３）に形成した位置決め用の
溝（３１）内に位置しており、押しボルト（４）でコツ
タ（３）を押圧することによって固定している。The fixture body (2) has a conical hole inside. The cotter (3) has an outer surface that engages with the conical hole, and an annular projection (3a) is provided at the tip thereof, and a wire positioning groove (31) is formed in this portion. . Each strand (11) of the metal stranded wire (1) is attached to the fixture body (
It is inserted between the conical hole of 2) and the cotter (3), and the vicinity of its tip is located in the positioning groove (31) formed in the cotter (3), and the push bolt (4) It is fixed by pressing the kotta (3).
前記位置決め用の溝（３１）は前述のように、略円周等
分割り又は点対称に各素線が配置されるように設けられ
ており、その深さは素線（１１）径の１７２〜３／４の
範囲にあることが望ましい。深さが１／２より小さいと
きは素線（１１）の大半が露出することになって傷がつ
き易く、３ハを超えるときは充分な締付力が得難い。As described above, the positioning groove (31) is provided so that each strand is arranged approximately equally on the circumference or point symmetrically, and its depth is 172 mm of the diameter of the strand (11). It is desirable that it be in the range of ~3/4. When the depth is less than 1/2, most of the strands (11) are exposed and are easily damaged, and when it exceeds 3 cm, it is difficult to obtain sufficient tightening force.
なお、本実施例においては、位置決め用の溝（３１）を
コツタ先端に設けた環状突起（３ａ）に設けたが、環状
突起を設けることなく、円錐状の外表面、あるいは固定
具本体（２）の円錐状の内面に設けても同様の効果を奏
することは明白である。In the present embodiment, the positioning groove (31) was provided on the annular projection (3a) provided at the tip of the fixture, but instead of providing an annular projection, the groove (31) for positioning was provided on the conical outer surface or the fixture body (2). ) It is clear that the same effect can be achieved even if it is provided on the conical inner surface of the tube.
さらに円錐状コツタの中心に軸方向の貫通孔を設けても
よい。Furthermore, an axial through hole may be provided in the center of the conical cotter.
（発明の効果）
以上説明したように、本発明の金属撚線の固定方法によ
れば、コツタの締付力が全部の素線に均等に負荷され、
安定した締付力が得られる。従うてセルフロックが確実
に実現され、コンパクトで強固な固定が得られる。(Effects of the Invention) As explained above, according to the method for fixing stranded metal wires of the present invention, the tightening force of the cotter is applied equally to all the strands,
Stable tightening force can be obtained. Accordingly, self-locking is reliably realized, and compact and strong fixing can be obtained.
第１図は本発明の固定方法の実施例の説明図で、同図（
イ）は形成された固定部の縦断面図、同図（ロ）は（イ
）図のＸ、−Ｘ、断面図、同図（ハ）は用いるコツタの
一例の外観図である。
第２図〜第５図は従来の固定方法の説明図であり、第５
図において、（イ）図は縦断面図、（ｌｌＩ）図は（イ
）図のＸＱ−Ｘ２断面図である。
１・・・金属撚線、１１・・・素線、２・・・固定具本
体、３・・・コツタ、３ａ・・・環状突起、 ３１・・
・位置決め用溝、４・・・押しボルト。
夷
図
寥
園FIG. 1 is an explanatory diagram of an embodiment of the fixing method of the present invention.
A) is a vertical sectional view of the formed fixing part, FIG. Figures 2 to 5 are explanatory diagrams of the conventional fixing method.
In the figures, (a) is a longitudinal cross-sectional view, and (lll) is a cross-sectional view taken along line XQ-X2 in (a). DESCRIPTION OF SYMBOLS 1... Metal stranded wire, 11... Element wire, 2... Fixture body, 3... Kotta, 3a... Annular protrusion, 31...
・Positioning groove, 4...Push bolt. Izuhoen Garden
Claims (3)
する円錐状外表面を有するコッタとの間に、金属撚線を
ばらした各素線を挿通し円錐状コッタを固定具本体の円
錐状孔に押圧して金属撚線を固定する方法において、前
記円錐状コッタの外表面あるいは固定具本体の円錐状孔
の内面の金属撚線の各素線と接する部分の全長又はその
一部に円周等分割溝を設け、金属撚線をばらした各素線
を上記溝内に位置せしめたことを特徴とする金属撚線の
固定方法。(1) Insert each strand of loose metal strands between a fixing device body having a conical hole and a cotter having a conical outer surface that engages with the hole, and attaching the conical cotter to the fixing device. In the method of fixing the stranded metal wire by pressing it into the conical hole of the main body, 1. A method for fixing stranded metal wire, characterized in that a groove is provided in a part of the strand to divide the circumference equally, and each strand of stranded metal wire is positioned in the groove.
４の範囲にあることを特徴とする請求項（１）記載の金
属撚線の固定方法。(2) The depth of the groove is 1/2 to 3/ of the diameter of the stranded metal wire.
4. The method for fixing stranded metal wires according to claim 1, wherein the method is within the range of 4.
とを特徴とする請求項（１）又は（２）記載の金属撚線
の固定方法。(3) The method for fixing stranded metal wires according to claim (1) or (2), characterized in that an axial through hole is provided in the center of the conical cotter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1332402A JPH0718107B2 (en) | 1989-12-20 | 1989-12-20 | Method for fixing metal strands |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1332402A JPH0718107B2 (en) | 1989-12-20 | 1989-12-20 | Method for fixing metal strands |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03193985A true JPH03193985A (en) | 1991-08-23 |
| JPH0718107B2 JPH0718107B2 (en) | 1995-03-01 |
Family
ID=18254569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1332402A Expired - Lifetime JPH0718107B2 (en) | 1989-12-20 | 1989-12-20 | Method for fixing metal strands |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718107B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2707435A1 (en) * | 1993-07-09 | 1995-01-13 | Alcatel Cable | Anchoring device for self-supporting overhead cable |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58720U (en) * | 1982-04-24 | 1983-01-06 | 理研軽金属工業株式会社 | whistling kettle |
| JPS59211693A (en) * | 1983-05-13 | 1984-11-30 | アメリカン・テレフオン・アンド・テレグラフ・カムパニ− | Twisted wire cable terminal |
-
1989
- 1989-12-20 JP JP1332402A patent/JPH0718107B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58720U (en) * | 1982-04-24 | 1983-01-06 | 理研軽金属工業株式会社 | whistling kettle |
| JPS59211693A (en) * | 1983-05-13 | 1984-11-30 | アメリカン・テレフオン・アンド・テレグラフ・カムパニ− | Twisted wire cable terminal |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2707435A1 (en) * | 1993-07-09 | 1995-01-13 | Alcatel Cable | Anchoring device for self-supporting overhead cable |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0718107B2 (en) | 1995-03-01 |
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