JPS59105601A - Optical fiber cord having high strength - Google Patents
Optical fiber cord having high strengthInfo
- Publication number
- JPS59105601A JPS59105601A JP57216700A JP21670082A JPS59105601A JP S59105601 A JPS59105601 A JP S59105601A JP 57216700 A JP57216700 A JP 57216700A JP 21670082 A JP21670082 A JP 21670082A JP S59105601 A JPS59105601 A JP S59105601A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- fiber cord
- tensile strength
- layer
- tube
- 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
- 239000013307 optical fiber Substances 0.000 title description 10
- 239000000835 fiber Substances 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 claims 1
- 239000006223 plastic coating Substances 0.000 claims 1
- 239000010410 layer Substances 0.000 description 11
- 239000011247 coating layer Substances 0.000 description 9
- -1 polyoxymethylene Polymers 0.000 description 8
- 239000000463 material Substances 0.000 description 6
- 229930040373 Paraformaldehyde Natural products 0.000 description 5
- 229920006324 polyoxymethylene Polymers 0.000 description 5
- 229920001296 polysiloxane Polymers 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 235000004431 Linum usitatissimum Nutrition 0.000 description 1
- 240000006240 Linum usitatissimum Species 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000004426 flaxseed Nutrition 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 229920002239 polyacrylonitrile Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000570 polyether Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/22—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Insulated Conductors (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】
本発明は元通信用に用いられる光フアイバコードに関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical fiber code used for original communications.
第１図は従来の元ファイバコードの一例の断面図であっ
て、１はガラスファイバ、２は通常、変性シリコーン層
とシリコーンバッファｊヤＩからなる一次被覆層、３は
ナイロン樹脂等からなる二次破１層、４は高弾性率の５
載維がたて沿え、もしくは編組された抗張力体、５はポ
リ塩化ビニル、ポリエチレン樹脂等からなる外被である
。第】図からも明らかなように、従来σ）光７了イパコ
ードニオいて、二次被ｄｉＮ ８ 、外被４がガラスフ
ァイバ１に比較してｌ／ｌｏ ” ｌ／１００の低い弾
性率を有するので、高価格な抗張力体４の使用が不可欠
であった０また通常、抗張力体としてはケブラー繊維等
が使用されているが、繊維であるσ）で、抗張力性Ｃ引
張力に対する耐性）は十分にあるが、抗圧縮性（圧縮力
に対する耐性）は全くない。このため、大きい線膨張率
（１０−４℃−１のオーダ）を有する二次被覆層８およ
び′外被５の低温における収縮にもとづくガラスファイ
バのマイクロベンディングの防止用としてはなんらの効
果も期待できなかった〇本発Ｈｌ（の光フアイバコード
は、二次被覆層自体が高い弾性率と低い線膨張率を有す
るので、特に抗張力体を必要とせず、二次被覆層自体が
被覆と抗張力体、さらに抗圧縮体を兼ねることを特徴と
し、その目的は低価格で高信頓性の光フアイバコードを
提供することにある。FIG. 1 is a cross-sectional view of an example of a conventional original fiber cord, in which 1 is a glass fiber, 2 is a primary coating layer usually made of a modified silicone layer and a silicone buffer layer, and 3 is a secondary coating layer made of nylon resin or the like. Next broken 1 layer, 4 is 5 with high elastic modulus
The tensile strength member 5 is a tensile strength member in which fibers are arranged vertically or braided, and 5 is an outer jacket made of polyvinyl chloride, polyethylene resin, or the like. As is clear from the figure, in the conventional σ) light 7 yp code, the secondary coating diN 8 and the outer sheath 4 have a lower elastic modulus of l/lo '' l/100 than the glass fiber 1. , the use of an expensive tensile strength material 4 was indispensable.Also, Kevlar fiber etc. are usually used as the tensile strength material, but the fiber σ) has sufficient tensile strength C). However, it has no compression resistance (resistance to compressive force).Therefore, the secondary coating layer 8 and the jacket 5, which have a large coefficient of linear expansion (on the order of 10-4°C-1), are susceptible to shrinkage at low temperatures. No effect could be expected on the prevention of microbending of the glass fiber.The optical fiber cord of the present invention has a high modulus of elasticity and a low coefficient of linear expansion, so the secondary coating layer itself has a high modulus of elasticity and a low coefficient of linear expansion. The present invention is characterized in that the secondary coating layer itself serves as a coating, a tensile strength body, and a compression resistance body without requiring a body, and its purpose is to provide a highly reliable optical fiber cord at a low cost.
以下に本発明を図面に示す一実施例に基づいて百兄１１
Ｈする。Below, Hyakuen 11 is based on an embodiment of the present invention shown in the drawings.
Have sex.
第２図は本発明に係る光フアイバコードσ）断面図であ
って、１はガラスファイバ、２は変性シリコーン層とシ
リコーンバッフ了Ｊ曽からなる一次被覆Ｊイ・Ｊ、３′
は誘電的に加熱し延伸することにより高弾性率化・低線
膨張率化した二次被覆層、５は外波、６は空気層である
。この実施例においては、外波５としてポリ塩化ビニル
樹脂または低密度ポリエチレン明晰を用いた。また車２
図から叫らかなように、ファイバ素線（ガラスファイバ
に一次Ｃ皮檀をＩ［＋ｉ （、たちの）と二次被覆ＪＭ
の間には空気Ｊ曽６があＣ）、シたがってルースチュー
ブ型の光フアイバコードである。この空気層６がバッフ
ァ層の役割を果た１−ので、−次被積１９ノ２は必ずし
も必要としない。二次被覆）ｒＩＪｓ ’が本光明の特
徴をなすところであｒｌ 、この実施例においては、呑
′亀的に加熱し延伸したポリオキシメチレンチューブを
用いている。ポリオキシメチレンチューブの誘電的加熱
延伸方法および元ファイバ心線の製造方法については、
才でに本発明者等が特願昭５７−６５４０５「元ファイ
バ心線の製造方法」についてｊＪＵらかにしている。FIG. 2 is a cross-sectional view of an optical fiber cord according to the present invention, in which 1 is a glass fiber, 2 is a primary coating consisting of a modified silicone layer and a silicone buffer layer, 3'
5 is a secondary coating layer which has a high elastic modulus and a low linear expansion coefficient by dielectrically heating and stretching, 5 is an external wave, and 6 is an air layer. In this embodiment, polyvinyl chloride resin or low-density polyethylene resin was used as the external wave 5. Also car 2
As is clear from the figure, the fiber wire (glass fiber is coated with primary C leather I[+i (, Tachino) and secondary coating JM
There is air between them (C), which is a loose tube type optical fiber cord. Since this air layer 6 plays the role of a buffer layer, the -th layer 19 is not necessarily required. The secondary coating) rIJs' is a feature of the present invention, and in this embodiment, a polyoxymethylene tube which has been heated and stretched in an extensive manner is used. Regarding the dielectric heating stretching method of polyoxymethylene tube and the method of manufacturing the original fiber core, please refer to
The inventors of the present invention published Japanese Patent Application No. 57-65405 entitled "Method for Manufacturing Original Fiber Core Wire".
４ 屯的に加熱延伸されたポリオキシメチレンチューブ
は弾性率は］ ５ ＧＰａ以上、１ｊ、戻１彬張率は１
０−５℃−１０オーダ以下である０こσ）ように二次被
慎層か高弾性率化、低線膨張率化されているσ）で、従
前σ）元ファイバコードに用いられている抗張力体が不
要になり、構造的に単純で低価格になるＯ同時に二次被
覆層を形成するポリオキシメチレンチューブ※ま愼椎と
異な（１、抗張力性と同時に抗圧５宿性を有し、かつ低
線１彰張率であるので、従＋１１１の元）了イバフード
に比較して、格段に優れた低温伝送損失０性を有する０
すなわち、少なくとも−（１０℃まで伝送損失の増加は
認められない０本発明における二次被憶層８′ｑ）材料
としては、結晶性の熱可塑性回詣であれば使用可能であ
ｔ；、特に材料を限定するものではなく、具体的な材料
名としては、例えばポリエチレン、ポリプロピレンなど
σ）ポリオレフィン、ポリオキシメチレンなどのポリエ
ーテル、ナイロン等のポリアミド、ボリエ千しンテレタ
レート等のポリエステル、ポリアクリロニトリル、ポリ
ビニルアルコール、ポリ・ビニリデンフルオライド等が
あげられる。4 The elastic modulus of polyoxymethylene tube that has been heated and stretched is 5 GPa or more, 1j, and the tensile modulus after return is 1
The secondary fiber layer has a high modulus of elasticity and a low coefficient of linear expansion, such as 0 - 5℃ - 10 orders of magnitude or less (σ), which was previously used in the original fiber cord. It eliminates the need for a tensile strength body, making it structurally simple and inexpensive.O Polyoxymethylene tube that also forms a secondary coating layer *Different from the linseed material (1. It has both tensile strength and antipressure properties. , and has a low wire tensile strength, so it has a much superior low-temperature transmission loss of 0 compared to the original +111
That is, as the material for the secondary storage layer 8'q in the present invention, in which no increase in transmission loss is observed up to at least -10°C, any crystalline thermoplastic material can be used; in particular, The materials are not limited, and specific material names include, for example, polyethylene, polypropylene, etc. σ) Polyolefins, polyethers such as polyoxymethylene, polyamides such as nylon, polyesters such as bolier esterate, polyacrylonitrile, polyvinyl Examples include alcohol, polyvinylidene fluoride, etc.
以」−４＋ｊ１４ Ｌ、たようＯこ、不発Ｈ１４の高’
！度光ファイバコードけ、二次波積層自体が抗張力体を
かねてオリ、別に抗張り体を必要としないので、構造が
ｔｌ（純で低価俗に′１．ｒるという利点がある。さら
に二次敲憚ハ′すは低線１シ杉張率で、かつ抗圧縮性も
具えているので、ｆ６＋ｉηの光フアイバコードが用い
ることができなかったような高温・低温条件でも使用で
きるという利点がある０
４、 Ｉａ ｉｈｉ ｒｔ）ｕｉ ｊｉ−１１ｉＱ ”
ｉ７７川図は従Ｑの光フアイバコードの一例の断面１！
゛４、ｉ’ｌ〜２図は不発１１１’４の高ｒｊＬｉ）度
光ファイバコードの−実り、Ｗ例の断面１図である。-4+j14 L, Tayou Oko, unexploded H14 high'
! The optical fiber cord and the secondary wave lamination itself serve as a tensile strength member, and since no separate tension member is required, the structure has the advantage of being pure and low cost. The next step has the advantage of being able to be used under high and low temperature conditions, where f6+iη optical fiber cords could not be used, as they have a low tensile strength and are also resistant to compression. 04, Ia ihi rt)ui ji-11iQ”
The i77 river diagram is cross section 1 of an example of a sub-Q optical fiber cord!
Figure 4, i'l~2 is a cross-sectional view of a W example of a high rjLi) optical fiber cord of unexploded 111'4.
ｊ・・・ガラスファイバ、２川−次ｒ皮イ倉ｊ〜、３・
・・従ｔ１７の二次被覆層、８′・・・不発１（１４に
係る二次被覆層、李・・・抗張力体、５・・・外波、６
・・・空気層〇第１ト１
第２Ｆ？１j...Glass fiber, 2 rivers - next r skin storage j~, 3.
... Secondary coating layer of secondary t17, 8'... Unexploded 1 (secondary coating layer according to 14, Li... Tensile strength body, 5... External wave, 6
...Air layer〇1st To1 2nd F? 1
Claims (1)
ｊ的に加熱し延伸することにより、高弾性率低線膨張率
化して得られる空気層およびプラスチックチューブ被覆
と、さらにその上に外被として別のプラスチック被覆と
を具えたことを特徴とする高強ＩＷ元ファイバコート。1. On the outside of the optical transmission glass fiber body,
A high-strength tube comprising an air layer and a plastic tube coating obtained by heating and stretching the tube to a high elastic modulus and a low coefficient of linear expansion, and further having another plastic coating as an outer coating thereon. IW original fiber coat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57216700A JPS59105601A (en) | 1982-12-10 | 1982-12-10 | Optical fiber cord having high strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57216700A JPS59105601A (en) | 1982-12-10 | 1982-12-10 | Optical fiber cord having high strength |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59105601A true JPS59105601A (en) | 1984-06-19 |
Family
ID=16692547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57216700A Pending JPS59105601A (en) | 1982-12-10 | 1982-12-10 | Optical fiber cord having high strength |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59105601A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116312U (en) * | 1985-01-07 | 1986-07-23 | ||
| FR2603522A1 (en) * | 1986-09-08 | 1988-03-11 | Silec Liaisons Elec | FLEXIBLE TUBE WITH REDUCED LINEAR EXPANSION COEFFICIENT, MANUFACTURING METHOD THEREOF, AND APPARATUS USING THE SAME |
| US4927585A (en) * | 1985-02-06 | 1990-05-22 | Sumitomo Electric Industries, Ltd. | Process for producing highly oriented resin-made reinforcing member |
| US7634961B2 (en) | 2004-09-29 | 2009-12-22 | Kobelco Construction Machinery Co., Ltd. | Hydraulic circuit for construction machine |
-
1982
- 1982-12-10 JP JP57216700A patent/JPS59105601A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61116312U (en) * | 1985-01-07 | 1986-07-23 | ||
| US4927585A (en) * | 1985-02-06 | 1990-05-22 | Sumitomo Electric Industries, Ltd. | Process for producing highly oriented resin-made reinforcing member |
| FR2603522A1 (en) * | 1986-09-08 | 1988-03-11 | Silec Liaisons Elec | FLEXIBLE TUBE WITH REDUCED LINEAR EXPANSION COEFFICIENT, MANUFACTURING METHOD THEREOF, AND APPARATUS USING THE SAME |
| US7634961B2 (en) | 2004-09-29 | 2009-12-22 | Kobelco Construction Machinery Co., Ltd. | Hydraulic circuit for construction machine |
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