JPS6013102A - Resin exterior method and apparatus of constructed cable - Google Patents
Resin exterior method and apparatus of constructed cableInfo
- Publication number
- JPS6013102A JPS6013102A JP58120876A JP12087683A JPS6013102A JP S6013102 A JPS6013102 A JP S6013102A JP 58120876 A JP58120876 A JP 58120876A JP 12087683 A JP12087683 A JP 12087683A JP S6013102 A JPS6013102 A JP S6013102A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- cable
- main body
- jacket
- sheathing
- 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
Links
Classifications
-
- D—TEXTILES; PAPER
- D07—ROPES; CABLES OTHER THAN ELECTRIC
- D07B—ROPES OR CABLES IN GENERAL
- D07B7/00—Details of, or auxiliary devices incorporated in, rope- or cable-making machines; Auxiliary apparatus associated with such machines
- D07B7/02—Machine details; Auxiliary devices
- D07B7/14—Machine details; Auxiliary devices for coating or wrapping ropes, cables, or component strands thereof
- D07B7/145—Coating or filling-up interstices
Landscapes
- Bridges Or Land Bridges (AREA)
- Ropes Or Cables (AREA)
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】
(イ)産業上の利用分野
本発明は、集合、集束、整形等の作業を完了した架設ケ
ーブル表面に、樹脂による防錆、防蝕用外装を施す方法
及び装置に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a method and apparatus for applying a rust-proofing and corrosion-proofing sheath with a resin to the surface of an installed cable that has been assembled, bundled, shaped, etc.
(ロ)従来技術とその問題点
従来、吊橋、斜張橋等の架設済み主ケーブルやハンガー
ロープ類の防錆、防蝕処理には、ペイント等を塗装する
方法と、アルミニウムの如き耐腐蝕性パイプでケーブル
を水密に覆う方法の2方法が実施されているが、何れも
施工面、効果のallで一長一短の感がある。(b) Conventional technology and its problems Conventionally, the rust and corrosion prevention treatments for the installed main cables and hanger ropes of suspension bridges, cable-stayed bridges, etc. have been carried out by applying paint, etc., and by using corrosion-resistant pipes such as aluminum. Two methods have been used to cover cables in a watertight manner, but each has advantages and disadvantages in terms of construction and effectiveness.
即ち、広く普及しているペイント等の塗装は。In other words, coatings such as paint are widely used.
ケーブルの複雑な構造部であっても特別の装着を使わず
にむらなく、しかも簡単に塗装施工が出来る反面、防錆
、防蝕効果の持続期間が短かく、従って、定期的な塗り
替えが必要で、保守・管理費用が高Gltiにつく欠点
がある。Although it is possible to apply coating evenly and easily without special installation even on complex cable structures, the rust and corrosion prevention effect lasts only for a short period of time, so periodic repainting is required. However, Glti has the disadvantage of high maintenance and management costs.
一方、耐蝕性パイプを使用する方法は、防蝕等の効果の
長寿命化を計れるが、ケーブル構造の複雑な部位を完全
に被覆することが難しく、また、使用材料の面からも施
工費が高くつく。On the other hand, the method of using corrosion-resistant pipes can provide corrosion protection and extend the service life, but it is difficult to completely cover the complex parts of the cable structure, and the construction cost is high due to the materials used. arrive.
(ハ)問題点を解決するための手段
本発明は、かかる現状技術に鑑みてなされたもので、信
頼性の高い防錆・防蝕層が得られ。(c) Means for Solving the Problems The present invention has been made in view of the current state of the art, and provides a highly reliable anti-rust/corrosion layer.
しかも架設ケーブルの集合部のように構造の複雑な部位
であっても容易かつ完全に被覆するこのがその目的であ
る。Moreover, the purpose is to easily and completely cover even a part with a complex structure, such as a collection of cables.
この目的の1つである本発明の樹脂外装方法は、集合、
集束、整形等の作業の完了した架設ケーブル外周に、着
脱式の樹脂外装装置を装着し、この装置で順次供給され
る原料樹脂を加熱溶融しなが°ら、かつ溶融樹脂の温度
制御を行いつ\ケーブル外周に押出し被覆することを特
徴とする。The resin cladding method of the present invention, which is one of the objectives, has the following objectives:
A removable resin sheathing device is attached to the outer periphery of the installed cable that has undergone work such as convergence and shaping, and this device heats and melts the raw resin that is sequentially supplied, and also controls the temperature of the molten resin. It is characterized by extruded coating on the outer circumference of the cable.
即ち、一般に、エポキシ、ポリエチレン、ポリ塩化ビニ
ール、ポリプロピレン、ポリウレタン、コールタールエ
ポキシ等の合成樹脂は、その化学的性質が極めて安定し
ており、金属構造材等の腐蝕、発錆防止に優れた特性を
示すことは良く知られている。In other words, synthetic resins such as epoxy, polyethylene, polyvinyl chloride, polypropylene, polyurethane, and coal tar epoxy generally have extremely stable chemical properties and have excellent properties in preventing corrosion and rusting of metal structural materials. It is well known to show that
従って、この種樹脂でケーブル表面を外装できれば信頼
性の高い防錆、防蝕効果を得ることが可能になる。Therefore, if the cable surface can be coated with this type of resin, highly reliable rust and corrosion prevention effects can be obtained.
ただし、架空ケーブルの多数のストランドやワイヤーに
、生産段階で樹脂の外装を行ったのでは、架設中の樹脂
被膜の傷付き1、取扱いの不便さ、ケーブル径の大径化
、ケーブル素線への圧縮・摩擦力の作用等種々の不都合
な問題が生じ実用性が薄れる。つまり、ケーブルの防錆
。However, applying resin sheathing to the many strands and wires of an overhead cable at the production stage will result in damage to the resin coating during installation, inconvenience in handling, increased cable diameter, and damage to the cable bare wire. Various inconvenient problems such as the effect of compression and frictional force occur, reducing the practicality of the method. In other words, it prevents the cable from rusting.
防蝕のためには、架設後のケーブル外周を樹脂で被覆す
ることが最も合理的かつ実用的であると云える。For corrosion protection, it can be said that it is most rational and practical to coat the outer periphery of the cable with resin after installation.
ここで、金属構造材の表面に樹脂の被膜を形成する方法
は数多く知られるが、信頼性の高い被膜を得るには、溶
剤液に樹脂粉末を分散させて塗布した。いわゆる塗料被
覆では不充分である。Although many methods are known for forming a resin film on the surface of a metal structural material, in order to obtain a highly reliable film, resin powder is dispersed in a solvent solution and applied. So-called paint coatings are insufficient.
そこで1本発明者等は、各種の方法によって形成された
樹脂被膜の耐久性、防錆、防蝕効果に関する信頼性を試
験した結果、金属類に対して接着力の強い樹脂を選定し
、その樹脂を熱溶融してケーブル類の表面に被覆すると
共に・この被覆層を外力を加えてケーブル等に強く密着
させる方法が最も優れている事を見い出し、上記の方法
を提案するに至ったものである。Therefore, as a result of testing the reliability of the durability, rust prevention, and anticorrosion effects of resin coatings formed by various methods, the present inventors selected a resin with strong adhesion to metals, and We discovered that the best method is to heat-fuse the coating layer to coat the surface of the cable, and then apply external force to firmly adhere the coating layer to the cable, etc., which led us to propose the above method. .
この方法による樹脂被膜は、顕著な防錆、防蝕効果を示
し、連続塩水噴霧5.000時間経過後も同等異常を起
こさない。The resin coating produced by this method exhibits remarkable antirust and anticorrosion effects, and does not cause similar abnormalities even after 5,000 hours of continuous salt water spraying.
また、施工後不測の事態が生じて被膜を疵付けても、そ
の疵が鋼材表面に達していなりれば上記効果の低ドは起
こらず、疵が鋼材表面に達した場合も、底部近辺の発錆
のみに止めることができる。なお、この効果は、樹脂の
性質、即ち、鋼材に対する密着性の良し悪しによって左
右されるところが大きく、従って、腐蝕の進展をなくす
には樹脂の選択を誤まらないようにすることが肝要であ
る。In addition, even if an unexpected situation occurs after construction and the coating is scratched, as long as the scratch does not reach the surface of the steel material, the above-mentioned effect will not be reduced. Only rust can be stopped. Note that this effect largely depends on the properties of the resin, that is, the adhesion to the steel material. Therefore, in order to prevent the progression of corrosion, it is important to avoid making mistakes in the selection of the resin. be.
次l(、装置について説明する。Next, the device will be explained.
本発明の樹脂外装装置は、集合、集束、整形等の作業の
完了した架設ケープlし外周に着脱自在に装着する少な
くとも縦に2分割された筒状の本体と、その両端部に設
けた複数組の案内ローラと、本体の一端部に設けた原料
樹脂の送給装置と、その近辺におい゛C原料樹脂を加熱
溶融させる熱源と、本体内面に設けた樹脂の剥離性の良
好な分割ジャケットとを備える構成とされたもので、上
述の方法の実施を作業性良く可能にするものである。こ
の装置は、構成部品の一部を交換することにより、例え
ば第1図に示す吊橋の主ケーブル1やバンカーロープ2
の直線状の部位(例えば図中a部)のほか、主ケーブル
とハンガーロープの集合したb部の樹脂被覆も行え、吊
橋等を構成する架設ケーブル全体の防錆、防蝕処理を可
能にする。The resin sheathing device of the present invention comprises a cylindrical main body divided into at least two vertically, which is removably attached to the outer periphery of the construction cape that has undergone work such as assembly, convergence, shaping, etc. A pair of guide rollers, a feeding device for the raw resin provided at one end of the main body, a heat source for heating and melting the raw resin in the vicinity thereof, and a split jacket with good resin releasability provided on the inner surface of the main body. This configuration allows the above-described method to be carried out with good workability. By replacing some of the component parts, this device can be installed, for example, the main cable 1 of a suspension bridge or the bunker rope 2 shown in FIG.
In addition to the linear part (for example, part a in the figure), resin coating can also be applied to part b, where the main cable and hanger rope are assembled, making it possible to perform anti-rust and anti-corrosion treatment for the entire installed cable constituting a suspension bridge, etc.
(ニ)実施例 添伺第2図に本発明の樹脂外装装置の一例を示す。(d) Examples An example of the resin packaging device of the present invention is shown in FIG. 2.
例示の外装装置10は、複数に縦割すされた筒状の本体
11と、その両端部に設けた複数組例えば4乃至8糺の
案内ローラ12と、本体の一端部に設けた原料樹脂の送
給装置13と、この送給装置近辺において樹脂を加熱溶
融させるヒータ又は電磁加熱器等の熱源14と、本体同
様複数に縦割すして本体内部に取付けたジャケット15
と、このジャケットに埋設された溶融樹脂の温度センサ
ー16及びセンサーの検出温度に基いて熱源の発熱容量
を制御する温度制御装置(図示せず)から成る。The illustrated exterior device 10 includes a cylindrical main body 11 vertically divided into a plurality of parts, a plurality of sets of guide rollers 12, for example, 4 to 8 glues, provided at both ends thereof, and a raw resin roller provided at one end of the main body. A feeding device 13, a heat source 14 such as a heater or an electromagnetic heater that heats and melts the resin in the vicinity of the feeding device, and a jacket 15 that is vertically divided into a plurality of pieces and attached inside the main body like the main body.
, a molten resin temperature sensor 16 embedded in this jacket, and a temperature control device (not shown) that controls the heat generation capacity of the heat source based on the temperature detected by the sensor.
本体11及びジャケットを複数に縦割すしたのは、装置
10のケーブルAへの着脱を可能にするためであり1分
割された本体部品をケーブル外周に配し、それをボルト
やいわゆるワンタッチ式のクランプ装置等を利用して互
いに結合することにより、外装装置10を案内ローラ1
2で支持してケーブル外周に装着する。The reason why the main body 11 and the jacket are vertically divided into multiple parts is to enable the device 10 to be attached to and removed from the cable A.The main body parts that have been divided into one part are arranged around the outer circumference of the cable, and they are connected with bolts or a so-called one-touch type. By coupling the sheathing device 10 to the guide roller 1 using a clamping device or the like,
2 and attach it to the outer circumference of the cable.
また、ジャケット15は、溶融樹脂の本体への耐着を防
止する目的で設けたもので、テフロン等樹脂の剥離性の
良好な材料によって形成されている。このジャケットは
、矢印で示す装置の移動方向の先M1:部がケーブル外
周にはゾ密着しており、この部分を残く後方部はケーブ
ルAの外周面との間に所定の隙間を生じる大きさで。Further, the jacket 15 is provided for the purpose of preventing the molten resin from adhering to the main body, and is made of a material such as Teflon that has good peelability from the resin. The tip M1 of this jacket in the direction of movement of the device shown by the arrow is in close contact with the outer periphery of the cable, and the rear part remaining behind this part is large enough to create a predetermined gap between it and the outer periphery of cable A. Sade.
その隙間部分が流動樹脂の通路となってケーブル外周に
樹脂の押出し被膜Bが形成される。The gap becomes a passage for the fluid resin, and an extruded resin coating B is formed on the outer periphery of the cable.
即ち、空気輸送等の適当な方法で原料樹脂を本体の送給
口17に供給すると、その樹脂は送給装置13によって
本体内部へ送り込まれる。That is, when raw resin is supplied to the supply port 17 of the main body by an appropriate method such as pneumatic transportation, the resin is sent into the interior of the main body by the feeding device 13.
また2本体内部に進入した樹脂は、熱源14によって融
点以上の温度に加熱されて溶融し、さらにその温度がセ
ンサー16と温度制御装置によって設定温度に保たれ状
態で圧送されるためジャケット内部においてケープ外周
に密着する。The resin that has entered the main body of 2 is heated to a temperature higher than the melting point by the heat source 14 and melted, and the temperature is further maintained at a set temperature by the sensor 16 and the temperature control device, and the resin is pumped inside the jacket. Closely attached to the outer periphery.
、次に、装置10を徐々に矢印方向に前進させると、熱
源から遠去かった溶融樹脂はケーブル本体への熱伝導に
より冷却されて凝固し、案内ローラの接触によって変形
の起こらない程度に固まったところで装置10の出口か
ら後方に抜は出す。従って、以上の動作を連続的に行え
ば架設ケーブルの直線状となった部分を押出し樹脂の被
膜Bによって外装することができる。Next, when the device 10 is gradually advanced in the direction of the arrow, the molten resin that has moved away from the heat source is cooled and solidified by heat conduction to the cable body, and is solidified to the extent that no deformation occurs due to contact with the guide roller. At this point, extract the material from the outlet of the device 10 to the rear. Therefore, if the above-mentioned operations are performed continuously, the straight portion of the installed cable can be covered with the extruded resin coating B.
なお、ジャケット15は本体11に着脱不可に固定して
良いのは云う1でもないが、好ましくは本体11に着脱
自在に数例け、ジャケットの交換によって樹脂通路の内
径を変更するようにすれば、同一の装置本体を使用して
部分的に樹脂被膜の厚みを変える施工が可能【Cなる。Incidentally, it is not necessarily the case that the jacket 15 is fixed to the main body 11 in a non-removable manner, but it is preferable that the jacket 15 be detachably attached to the main body 11 in several cases, and the inner diameter of the resin passage can be changed by replacing the jacket. , it is possible to partially change the thickness of the resin coating using the same device body [C].
また、本体11及びジャケット15は、2乃至4つ割り
構造とすれば足りるが、蛙に、特定の方向(例えば下面
側)に、第3図に示す如く樹脂i…路となる中心穴に交
差して連通ずる分岐穴11’ a 、 15’aを有す
る本体部材11′とジャケット部材15’を第2図の部
材と交換して取イ」けることにより、ハンガーロープ2
等との接合部、或いは集合、集束部の樹脂外装を行うこ
とができる。It is sufficient that the main body 11 and jacket 15 are divided into two or four parts. By replacing the main body member 11' and jacket member 15' having branch holes 11'a and 15'a communicating with each other with the members shown in FIG. 2, the hanger rope 2 can be removed.
It is possible to cover the joints, collection, and convergence parts with resin.
この場合、温度センサーにより棒1脂が所定の温度に加
熱されたことを確認したら加熱を中断し、ケーブルへの
伝熱により冷却凝固した被膜Bを得る。この作業は勿論
装置を定位置に固定して行う。しかる後に、本体部材1
11とジャケット部材15’を分解して取外し、残され
た装置を多少(ハンガーロープの前方迄)移動させ。In this case, when it is confirmed by the temperature sensor that the rod 1 fat has been heated to a predetermined temperature, the heating is stopped and the coating B is obtained which is cooled and solidified by heat transfer to the cable. This work is of course performed with the device fixed in place. After that, the main body member 1
11 and jacket member 15' are disassembled and removed, and the remaining device is moved a little (to the front of the hanger rope).
さらに第2図に示す分岐穴のない部材を部材11’、1
5’に代えて取付けた後再び直線部の外装施工を行えば
よく、このような施工手順を採ることにより、長大でし
かも集合、集束部を有するケーブル全体を、連、院的に
効率良くしかもむらなく梼[脂で外装することができる
。Furthermore, members 11' and 1 without branch holes shown in FIG.
5', and then re-cladding the straight section. By adopting this construction procedure, the entire cable, which is long and has gathering and converging sections, can be connected efficiently and efficiently. It can be coated evenly with fat.
なお、′!/:置1装の移動は、本体11にケーブルに
接する自走装置をイ1加して行えば作業性に優れるが、
ウィンチ等に巻き取られるワイヤて牽引してもよく、寸
だ1人力によって移動させることも可能である。In addition,'! /: The movement of the device 1 can be accomplished by adding a self-propelled device in contact with the cable to the main body 11, which improves work efficiency.
It may be pulled by a wire wound around a winch or the like, or it may be moved by hand.
(ホ)効果
以上説明した連り、本発明の樹脂外装方法及び装置によ
れば、集合、集束部等を有する架設ケーブル全体を樹脂
で外装することができ、寸た、形成された樹脂被膜は、
押出しによりケーブル外面に良好に密着するため、防錆
、防蝕に関する信顆性が極めて高く、さらに、外装作業
は構造の複雑な部分であっても容易に行える。・そのほ
か、防錆、防蝕効果の寿命が長いので保守期間が延長さ
れ、加えて樹脂は耐蝕性パイプに比べて安価であるので
経済的にも有利であり・その産業上貢献するところは極
めて大きい。(e) Effects As explained above, according to the resin sheathing method and device of the present invention, the entire installed cable having gathering, converging parts, etc. can be sheathed with resin, and the formed resin sheathing can be ,
Because it adheres well to the outer surface of the cable through extrusion, it has extremely high reliability in terms of rust and corrosion prevention, and furthermore, exterior work can be easily performed even on complex parts of the structure.・In addition, the maintenance period is extended due to the long life of the rust and corrosion prevention effect, and in addition, resin is cheaper than corrosion-resistant pipes, so it is economically advantageous. ・Its contribution to industry is extremely large. .
第1図は、本発明の方法及び装置を遺留する個所の一例
を示す線図、第2図はこの発明の樹脂外装装置の一例を
構成部品の半分を取外した状態にして示す正面図、第3
図は、同上の装置の部品の一部を変形されたものと交換
した状態の正面図である・
10・・・外装装置、11・・・本体、12・・・案内
ローラ、13・・−樹脂送給装置、14・・・熱源、1
5・・・ジャケット、16・・・l黒度センサー、11
1・・・分岐穴(1本体部材、15′・・・分岐穴付ジ
ャケット部材、A・・−ケーブル、I3・・・樹脂被膜
特許出願人 住友電気工業株式会社
同 代理人 鎌 1)文 二FIG. 1 is a diagram showing an example of a location where the method and device of the present invention are retained; FIG. 2 is a front view showing an example of the resin-clad device of the present invention with half of its components removed; 3
The figure is a front view of the same device in which some of the parts have been replaced with modified ones. 10...Exterior device, 11...Main body, 12...Guide roller, 13...- Resin feeding device, 14... heat source, 1
5...jacket, 16...l blackness sensor, 11
1... Branch hole (1 main body member, 15'... jacket member with branch hole, A...-cable, I3... resin coating patent applicant Sumitomo Electric Industries, Ltd. agent sickle) 1) Sentence 2
Claims (5)
ル外周に、着脱式の樹脂外装装置を装着し、との装置で
順次供給きれる原料樹脂を加熱溶融しながら、かつ溶融
樹脂の温度制御を行いつ\ケーブル外周に押出し被覆す
ることを特徴とする架設ケーブルの枯1脂外装方法。(1) A removable resin sheathing device is attached to the outer periphery of the installed cable after assembly, convergence, shaping, etc. have been completed, and the device heats and melts the raw resin that can be supplied sequentially and controls the temperature of the molten resin. A method for sheathing an installed cable by extrusion and coating the outer periphery of the cable.
ブル外周に和親自在に装着する少なくとも縦方向、に2
分割さ才また筒状の本体と、その両端部に設り゛た祷数
絹の案内ローラと、本体の一端部に設けた原料樹脂の送
給装置と、この送給装置近辺において原料樹脂を加熱溶
融させる熱源と、本体内面に設けた樹脂の剥離性の良好
な分割ジャケットとを備え、このジャケットの一端部を
除く内面とケーブル外周面間に形成される環法空間にt
品度制御した流動樹脂を通してケーブル外周に樹脂の押
出被膜を形成するようにした架設ケーブルの樹脂外装装
置。(2) At least in the vertical direction, 2
A split cylindrical main body, silk guide rollers installed at both ends of the main body, a raw resin feeding device installed at one end of the main body, and a raw resin feeding device near this feeding device. Equipped with a heat source for heating and melting, and a divided jacket with good peelability of the resin provided on the inner surface of the main body, the ring space formed between the inner surface of this jacket except for one end and the outer peripheral surface of the cable is
A resin sheathing device for installed cables that forms an extruded resin coating on the outer periphery of the cable through quality-controlled fluid resin.
たことを特徴とする特許請求の範囲第(2)項記載の架
設ケーブルの樹脂外装装置。(3) A resin sheathing device for an installation cable as set forth in claim (2), wherein the jacket is detachably attached to the main body.
ずる分岐穴を有し、かつこの分岐穴イ1本体及びジャケ
ットは縦方向にさらに2分割されていることを特徴とす
る特許請求の範囲第(2)項又は第(3)項記載の架設
ケーブルの樹脂外装装置。(4) Claims characterized in that the main body and the jacket have a branch hole that intersects and communicates with the center hole, and the branch hole 1, the main body and the jacket are further divided into two in the vertical direction. A resin sheathing device for an installation cable according to item (2) or item (3).
とする特許請求の範囲第(2)乃至第(4)項のいずれ
かに記載の架設ケープIしの梼1脂外装装−0(5) The construction cape I and the tower 1 exterior sheathing according to any one of claims (2) to (4), characterized in that the main body is equipped with a self-propelled device. 0
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58120876A JPS6013102A (en) | 1983-07-01 | 1983-07-01 | Resin exterior method and apparatus of constructed cable |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58120876A JPS6013102A (en) | 1983-07-01 | 1983-07-01 | Resin exterior method and apparatus of constructed cable |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6013102A true JPS6013102A (en) | 1985-01-23 |
Family
ID=14797141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58120876A Pending JPS6013102A (en) | 1983-07-01 | 1983-07-01 | Resin exterior method and apparatus of constructed cable |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6013102A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03206193A (en) * | 1989-10-13 | 1991-09-09 | Sumitomo Electric Ind Ltd | Cable for suspension structure |
JPH06229052A (en) * | 1992-12-21 | 1994-08-16 | Tomoe Corp | Roof structure |
-
1983
- 1983-07-01 JP JP58120876A patent/JPS6013102A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03206193A (en) * | 1989-10-13 | 1991-09-09 | Sumitomo Electric Ind Ltd | Cable for suspension structure |
JPH06229052A (en) * | 1992-12-21 | 1994-08-16 | Tomoe Corp | Roof structure |
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