JP2726885B2 - Test method for adhesive strength of optical fiber - Google Patents
Test method for adhesive strength of optical fiberInfo
- Publication number
- JP2726885B2 JP2726885B2 JP12551889A JP12551889A JP2726885B2 JP 2726885 B2 JP2726885 B2 JP 2726885B2 JP 12551889 A JP12551889 A JP 12551889A JP 12551889 A JP12551889 A JP 12551889A JP 2726885 B2 JP2726885 B2 JP 2726885B2
- Authority
- JP
- Japan
- Prior art keywords
- coating layer
- optical fiber
- adhesive strength
- adhesive
- bare
- 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
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は、光ファイバ素線における裸部分と被覆層と
の接着力（密着力）を試験する試験方法に関するもので
ある。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a test method for testing the adhesive strength (adhesion) between a bare part and a coating layer in an optical fiber.
＜従来の技術＞ 従来、光ファイバ素線の裸部分と被覆層との接着力を
試験するには、例えば第４図に示したように、サンプル
の光ファイバ素線Ｆの一部（図中、上端）に被覆層１を
残して口出しし、この口出しされた裸部分２を保持用フ
ェルール３の貫通孔４に通し、このフェルール３と裸部
分２との間に引抜き力を作用させ、そのときの、被覆層
１の保持力により、裸部分２と被覆層３との接着力を求
めていた。<Prior Art> Conventionally, in order to test the adhesive force between a bare portion of an optical fiber and the coating layer, as shown in FIG. 4, for example, as shown in FIG. , The upper end), leaving the coating layer 1, passing the exposed bare portion 2 through the through hole 4 of the holding ferrule 3, and applying a pulling force between the ferrule 3 and the bare portion 2. At this time, the adhesive force between the bare portion 2 and the coating layer 3 was determined from the holding force of the coating layer 1.
＜発明が解決しようとする課題＞ ところが、上記のような方法の場合だと、（１）被覆
層１と裸部分２との接着力が強い場合、被覆層１自体が
破壊されて、被覆層１部分がフェルール３の貫通孔４か
ら抜けたりして、正確な接着力が求められないことがあ
った。（２）また、被覆層１部分の径が小さくい（細
い）場合には、引抜き力に比較して相対的に被覆層１の
強度が弱過ぎるために、被覆層１自体が容易に破壊され
て、やはり正確な接着力が求められないことがあった。<Problems to be Solved by the Invention> However, in the case of the above-described method, (1) when the adhesive strength between the coating layer 1 and the bare portion 2 is strong, the coating layer 1 itself is broken, and the coating layer 1 is broken. In some cases, one part came off the through hole 4 of the ferrule 3 and an accurate adhesive force was not required. (2) When the diameter of the coating layer 1 is small (thin), the coating layer 1 is easily broken because the strength of the coating layer 1 is relatively too low as compared with the pulling force. As a result, accurate adhesive strength was sometimes not required.
本発明は、このような従来の実情に鑑みてなされたも
のである。The present invention has been made in view of such a conventional situation.
＜課題を解決するための手段＞ かゝる本発明の特徴とする点は、光ファイバ素線の裸
部分と当該裸部分に被覆された被覆層との接着力を引抜
き力により求める光ファイバ素線の接着力試験方法にお
いて、サンプルの光ファイバ素線の被覆層部分を、係合
部を有する治具の当該係合部に接着剤により固着すると
共に、当該固着部分を除いて被覆層を除去して口出し
し、該口出しされた裸の光ファイバ素線と前記治具との
間に引抜き力を作用させて、接着力を求める光ファイバ
素線の接着力試験方法にある。<Means for Solving the Problems> The feature of the present invention is that an optical fiber element which determines the adhesive force between a bare portion of an optical fiber and a coating layer coated on the bare portion by a pulling force. In the wire adhesion test method, the coating layer portion of the optical fiber of the sample is fixed to the engaging portion of the jig having the engaging portion with an adhesive, and the coating layer is removed except for the fixed portion. In this method, a pulling force is applied between the exposed bare optical fiber and the jig to determine an adhesive strength.
＜作用＞ この方法では、光ファイバ素線の被覆層部分が治具の
係合部、例えば溝に一体に固着されているため、被覆層
部分の破壊、破損等がしにくくなり、裸部分が被覆層部
分の接着部から剥離して抜けるようになるので、被覆層
部分と裸部分との間の真の接着力が正確に求められる。<Operation> In this method, since the coating layer portion of the optical fiber is integrally fixed to the engaging portion of the jig, for example, the groove, it is difficult for the coating layer portion to be broken or damaged, and the bare portion is removed. Since the adhesive is peeled off from the adhesive portion of the coating layer portion, the true adhesive force between the coating layer portion and the bare portion is accurately obtained.
＜実施例＞ 第１図は本発明に係る光ファイバ素線の接着力試験方
法を実施するための装置系の一例を示したものである。<Embodiment> Fig. 1 shows an example of an apparatus system for implementing the method for testing the adhesive strength of an optical fiber according to the present invention.
図において、Ｆはサンプルの光ファイバ素線、11はこ
の光ファイバ素線Ｆの被覆層（第２被覆層がある場合に
は、内側の第１被覆層に相当する部分）、12は被覆層11
部分が口出しにより除去された裸部分である。In the figure, F is the optical fiber of the sample, 11 is the coating layer of the optical fiber F (if there is a second coating layer, the portion corresponding to the inner first coating layer), and 12 is the coating layer 11
The part is the bare part removed by tapping.
上記被覆層11部分は、第２図に示したように、例えば
Ｖ溝等の溝からなる係合部15を有する治具14の当該係合
部15に接着剤16により一体的に固着される。この光ファ
イバ素線Ｆに固着された治具14は、第３図に示した如
き、筺型の治具保持具17の切込み部18に裸部分12を通し
て、装着される。As shown in FIG. 2, the covering layer 11 is integrally fixed to an engaging portion 15 of a jig 14 having an engaging portion 15 formed of a groove such as a V-groove by an adhesive 16. . As shown in FIG. 3, the jig 14 fixed to the optical fiber F is attached to the notch 18 of the housing type jig holder 17 through the bare portion 12.
この治具保持具17は、吊り部材19を介して、機枠20の
天井部に設置された負荷検出用のロードセル21に接続さ
れている。The jig holder 17 is connected via a hanging member 19 to a load detection load cell 21 installed on the ceiling of the machine casing 20.
一方、上記光ファイバ素線Ｆの裸部分12の下端は、フ
ァイバ用チャック22により挟持する。このチャック22
は、機枠20の上下方向に立設された２本のネジシャフト
23,23に上下動自在に装着された移動ステージ24に取り
付けられている。On the other hand, the lower end of the bare portion 12 of the optical fiber F is held by the fiber chuck 22. This chuck 22
Are two screw shafts vertically set up on the machine frame 20
It is attached to a moving stage 24 which is attached to 23 and 23 so as to be vertically movable.
しかして、本装置系の場合、上記のように光ファイバ
素線Ｆを治具保持具17とファイバ用チャック22間にセッ
トし、この状態で、移動ステージ24を下降させれば、そ
の張力は、光ファイバ素線Ｆの裸部分12と被覆層11との
間に作用し、遂には裸部分12が被覆層11から抜ける。In the case of the present apparatus system, the optical fiber F is set between the jig holder 17 and the fiber chuck 22 as described above, and in this state, if the moving stage 24 is lowered, the tension is reduced. Act between the bare portion 12 of the optical fiber F and the coating layer 11, and the bare portion 12 finally comes off from the coating layer 11.
この値を、ロードセル21により求めれば、両者間の接
着力が求められる。If this value is obtained by the load cell 21, the adhesive force between the two can be obtained.
このとき、被覆層11は、治具14の係合部15内にあっ
て、接着剤16により治具14と一体的に固着されているた
め、被覆層11部分が破壊や損傷されることが殆どなくな
る。At this time, since the coating layer 11 is in the engaging portion 15 of the jig 14 and is integrally fixed to the jig 14 by the adhesive 16, the portion of the coating layer 11 may be broken or damaged. Almost gone.
従って、被覆層11の接着力が相当高くとも、あるいは
被覆層11の径が細くて、引抜き力が相対的に相当大きく
とも、被覆層11の破壊や損傷なく対応することができ、
正確な接着力が求められる。Therefore, even if the adhesive force of the coating layer 11 is considerably high, or even if the diameter of the coating layer 11 is small and the pull-out force is relatively large, it is possible to cope without breaking or damaging the coating layer 11,
Accurate adhesive strength is required.
つまり、被覆層11の接着による相対的な強度上昇によ
り、裸部分12は、被覆層11の接着境界部分から剥離し
て、綺麗に抜けるようになり、被覆層部分11と裸部分12
との間の真の接着力が正確に求められるようになる。That is, due to the relative strength increase due to the adhesion of the coating layer 11, the bare portion 12 is peeled off from the bonding boundary portion of the coating layer 11 and comes out neatly, and the coating layer portion 11 and the bare portion 12 are removed.
The true adhesion between the two is accurately determined.
因みに、本発明の場合、用いる光ファイバ素線Ｆの種
類によっても異なるが、例えば裸部分12の外径が125μ
ｍ、被覆層11部分の外径が250μｍであるUV硬化樹脂被
覆石英製光ファイバ素線Ｆにおいて、サンプルの全長を
50mm程度とすると、そのうち、被覆層11の長さは10mm、
裸部分12の長さ40mm程度とするとよい。そして、被覆層
11の治具14への固着に用いる接着剤16としては、例えば
α−シアノアクリレート系の瞬間接着剤、エポキシ樹脂
系の速硬化型接着剤等を用いるとよい。Incidentally, in the case of the present invention, although it differs depending on the type of the optical fiber F used, for example, the outer diameter of the bare portion 12 is 125 μm.
m, the UV curable resin-coated quartz optical fiber F having an outer diameter of 250 μm
If it is about 50 mm, of which the length of the coating layer 11 is 10 mm,
The length of the bare part 12 should be about 40 mm. And the coating layer
As the adhesive 16 used for fixing the 11 to the jig 14, for example, an α-cyanoacrylate-based instant adhesive, an epoxy resin-based fast-curing adhesive, or the like may be used.
このような条件のもとで、被覆層11の接着力は、約数
十〜約百ｇ程度として得られる。そして、接着力が極め
て高い場合は、500g程度で、また被覆系が細く場合に
は、20g程度である。引き抜き力の大きさは、ファイバ
の被覆材料によって決まる。Under such conditions, the adhesive strength of the coating layer 11 can be obtained as about several tens to about 100 g. When the adhesive strength is extremely high, the weight is about 500 g, and when the coating system is thin, the weight is about 20 g. The magnitude of the pull-out force depends on the fiber coating material.
なお、治具14の係合部15は、Ｖ溝等の溝が好ましい
が、このＶ溝に限定されるものではなく、接着剤16に一
体的に接着できる構造であれば、Ｕ溝、さらには貫通孔
等の場合でもよい。The engaging portion 15 of the jig 14 is preferably a groove such as a V-groove, but is not limited to this V-groove. May be a through hole or the like.
＜発明の効果＞ 以上の説明から明らかなように本発明に係る光ファイ
バ素線の接着力試験方法によれば、被覆層部分が、治具
の係合部内で接着剤により当該治具と一体に固着される
ため、被覆層自体の破壊や損傷は起こりにくくなり、被
覆層部分と裸部分との間の真の接着力が正確に求められ
る。<Effects of the Invention> As is clear from the above description, according to the method for testing the adhesive strength of an optical fiber according to the present invention, the coating layer portion is integrated with the jig by the adhesive in the engaging portion of the jig. Therefore, the coating layer itself is less likely to be broken or damaged, and the true adhesive force between the coating layer portion and the bare portion is accurately required.
この結果、従来、困難であった、被覆層の接着力が相
当高い場合にも、あるいは被覆層の径が細くて、相対的
に引抜き力が相当大きな場合にも、容易に対応すること
が可能となる。As a result, it is possible to easily cope with the case where the adhesive strength of the coating layer is relatively high, or the case where the diameter of the coating layer is small and the pull-out force is relatively large, which was difficult in the past. Becomes
第１図は本発明に係る光ファイバ素線の接着力試験方法
を実施するための装置系の一例を示した概略説明図、第
２図は光ファイバ素線の被覆層部分を治具の係合部に接
着剤により固着した状態を示した斜視図、第３図は治具
保持具を示した斜視図、第４図は従来方法の場合の光フ
ァイバ素線の被覆層部分と保持用フエルールとの係合関
係を示した一部縦断面図である。 図中、 Ｆ……光ファイバ素線、 11……被覆層、 12……裸部分、 14……治具、 15……溝、 16……接着剤、FIG. 1 is a schematic explanatory view showing an example of an apparatus system for carrying out the method for testing the adhesive strength of an optical fiber according to the present invention, and FIG. FIG. 3 is a perspective view showing a state where the jig holder is fixed to the joint portion with an adhesive, FIG. 4 is a perspective view showing a jig holder, and FIG. FIG. 6 is a partial vertical cross-sectional view showing an engagement relationship with the first embodiment. In the figure, F: optical fiber, 11: coating layer, 12: bare part, 14: jig, 15: groove, 16: adhesive,
Claims (1)
覆された被覆層との接着力を引抜き力により求める光フ
ァイバ素線の接着力試験方法において、サンプルの光フ
ァイバ素線の被覆層部分を、係合部を有する治具の当該
係合部に接着剤により固着すると共に、当該固着部分を
除いて被覆層を除去して口出しし、該口出しされた裸の
光ファイバ素線と前記治具との間に引抜き力を作用させ
て、接着力を求める光ファイバ素線の接着力試験方法。In a method for testing the adhesive strength of a bare optical fiber, the adhesive strength between a bare portion of the bare optical fiber and a coating layer coated on the bare portion is determined by a pull-out force. The layer portion is fixed to the engaging portion of the jig having the engaging portion with an adhesive, the coating layer is removed except for the fixed portion, and the hole is cut out. A method for testing the adhesive strength of an optical fiber, which determines the adhesive strength by applying a pulling force between the jig and the jig.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12551889A JP2726885B2 (en) | 1989-05-18 | 1989-05-18 | Test method for adhesive strength of optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12551889A JP2726885B2 (en) | 1989-05-18 | 1989-05-18 | Test method for adhesive strength of optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02304335A JPH02304335A (en) | 1990-12-18 |
| JP2726885B2 true JP2726885B2 (en) | 1998-03-11 |
Family
ID=14912135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12551889A Expired - Fee Related JP2726885B2 (en) | 1989-05-18 | 1989-05-18 | Test method for adhesive strength of optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2726885B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181234A (en) * | 2018-02-06 | 2018-06-19 | 山西省交通科学研究院 | A kind of fiber and pitch adhesive property test device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1273181B (en) * | 1994-05-05 | 1997-07-07 | Sip | PROCEDURE AND DEVICE FOR THE MEASUREMENT OF VISCOELASTIC PROPERTIES OF POLYMERIC OPTICAL FIBER COATINGS |
| JP5030921B2 (en) * | 2008-11-04 | 2012-09-19 | 株式会社フジクラ | Simulated evaluation method for adhesion between optical fiber and colored resin layer, and colored optical fiber manufacturing method |
| CN107314972B (en) * | 2017-06-15 | 2019-09-27 | 烽火通信科技股份有限公司 | A kind of test device and test method of butterfly optical cable optical fiber elasticity |
-
1989
- 1989-05-18 JP JP12551889A patent/JP2726885B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108181234A (en) * | 2018-02-06 | 2018-06-19 | 山西省交通科学研究院 | A kind of fiber and pitch adhesive property test device |
| CN108181234B (en) * | 2018-02-06 | 2021-03-16 | 山西省交通科学研究院 | Fiber and asphalt bonding performance testing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02304335A (en) | 1990-12-18 |
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