JPH03233413A - Method for optical fiber connecting part with reinforcing material - Google Patents
Method for optical fiber connecting part with reinforcing materialInfo
- Publication number
- JPH03233413A JPH03233413A JP2985590A JP2985590A JPH03233413A JP H03233413 A JPH03233413 A JP H03233413A JP 2985590 A JP2985590 A JP 2985590A JP 2985590 A JP2985590 A JP 2985590A JP H03233413 A JPH03233413 A JP H03233413A
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- reinforcing material
- screening
- tensile force
- heat
- 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
- 239000012779 reinforcing material Substances 0.000 title claims abstract description 16
- 239000013307 optical fiber Substances 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 9
- 238000012216 screening Methods 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 239000000835 fiber Substances 0.000 description 17
- 239000010410 layer Substances 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 13
- 239000011253 protective coating Substances 0.000 description 7
- 239000004831 Hot glue Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 239000012758 reinforcing additive Substances 0.000 description 4
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 241001481828 Glyptocephalus cynoglossus Species 0.000 description 1
- 241001272720 Medialuna californiensis Species 0.000 description 1
- 235000006679 Mentha X verticillata Nutrition 0.000 description 1
- 235000002899 Mentha suaveolens Nutrition 0.000 description 1
- 235000001636 Mentha x rotundifolia Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
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心線接続部への補強材被覆方法に関
する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for coating a reinforcing material on an optical fiber core connection portion.
〔従来の技術と発明が解決しようとする課N]一般に、
一対の光ファイバ心線を接続する場合、まず、光ファイ
バ心線の先端部だけ保護被覆層を剥離し、プリコートも
除去する。(つまり、先端部の光ファイバ素線を露出さ
せる。)その後、保護被覆層端から所定長さの所で鏡面
切断した各光ファイバ素線の先端面を加熱し、該先端面
を相互に当接させると共に、微小寸法だけ押付けて融着
接続し、次に、未収縮の熱収縮チューブよりなる補強材
を露出したファイバ素線の全長及びその近傍の保護被覆
層にわたって被覆するものである。[Problem N that the prior art and invention are trying to solve] Generally,
When connecting a pair of coated optical fibers, first, the protective coating layer is peeled off only at the tips of the coated optical fibers, and the precoat is also removed. (In other words, the optical fiber strand at the tip is exposed.) Thereafter, the tip surface of each optical fiber strand that has been mirror-cut at a predetermined length from the end of the protective coating layer is heated, and the tip surfaces are brought into contact with each other. The fibers are brought into contact with each other and fused and spliced by pressing only a minute dimension, and then a reinforcing material made of an unshrinkable heat-shrinkable tube is covered over the entire length of the exposed fiber wire and the protective coating layer in the vicinity thereof.
しかして、上述の接続作業では、ファイバ素線を融着接
続した後、熱収縮チューブにて被覆する前に、その接続
部の機械的強度が十分満足しているか否かを、例えば、
150 g〜250 gの引張り荷重を加えて破断しな
いことをi11認(スクリーニング試験)し、その後、
熱収縮チューブを被覆するものであって、接続部の信頼
性を保証している。However, in the above-mentioned splicing operation, after the fiber wires are fusion spliced and before being covered with a heat shrink tube, it is checked whether the mechanical strength of the spliced portion is sufficiently satisfied, for example.
After applying a tensile load of 150 g to 250 g, it was confirmed (screening test) that it would not break, and then
It covers the heat shrink tube and guarantees the reliability of the connection.
しかし、従来では、このスクリーニング試験の機構を、
接続装置に組込んで行っていた。従って、スクリーニン
グ試験を行った後、接続装置からファイバ接続部を取り
外して、熱収縮チューブ加熱用加熱器にセットし、該チ
ューブを加熱収縮させていたので、接続部を加熱器にセ
ットする間に、該接続部にねしれが生じ、そのねじれを
含んだ状態でチューブを被覆していた。However, in the past, the mechanism of this screening test was
It was incorporated into the connecting device. Therefore, after conducting a screening test, the fiber connection part was removed from the connection device and set in a heater for heating the heat-shrinkable tube, and the tube was heated and shrunk. , twisting occurred at the connection, and the tube was covered with the twisting.
従って、接続後、周囲の温度変化等で接続部に引張力が
加わると、本来、その張力では断線しないことを上述の
スクリーニング試験で確認されているにもかかわらず、
接続部ではねしれた状態で張力が加わるために、スクリ
ーニング荷重よりも小さな荷重で破断することになる。Therefore, even though it has been confirmed in the above-mentioned screening test that if a tensile force is applied to the connection due to changes in ambient temperature etc. after connection, the wire will not break due to that tension,
Since tension is applied at the connection part in a sprung state, it will break with a load smaller than the screening load.
そのために、ファイバ接続部を接続装置から外して熱収
縮チューブ加熱用加熱器にセットした後、スクリーニン
グ試験を行い、破断されれば、再び接続装置に戻して接
続を行い、破断していなければ、スクリーニング荷重を
取り去り、次に、熱収縮チューブを加熱収縮させる方法
が提案されたが、この場合、スクリーニング試験後、そ
の荷重を取り去って、チューブの被覆作業を行おうとす
ると、スクリーニング時においてファイバ心線がそのチ
ャ・7り部ですべり、荷重を取り去るとファイバ心線が
弛むという現象が発生していた。従って、このたるんだ
まま、熱収縮チューブを被覆することになり、被覆後の
チューブ内にファイバ心線の曲りやねしれや弛みの状態
で内蔵され、好ましくなかった。For this purpose, after removing the fiber connection part from the connection device and setting it in a heat shrink tube heating heater, a screening test is performed, and if it breaks, it is returned to the connection device and connected again, and if it is not broken, A method has been proposed in which the screening load is removed and then the heat-shrinkable tube is heat-shrinked. However, when the load is removed, the fiber core slips at the cha/7 joint, causing the fiber to loosen. Therefore, the heat-shrinkable tube is coated while the tube is sagging, and the fiber core wire is undesirably housed in the tube after being coated in a bent, twisted, or loose state.
そこで、本発明では、接続部がねしれたり弛んだりする
ことなしに、熱収縮チューブを被覆することができる光
ファイバ心線接続部への補強材被覆方法を提供すること
を目的とする。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a method of coating a reinforcing material on an optical fiber connection portion, which can cover a heat-shrinkable tube without twisting or loosening the connection portion.
上述の目的を達成するために、本発明に係る光ファイバ
心線接続部への補強材被覆方法は、スクリーニング時の
チャッキングをそのまま保持すると同時に該スクリーニ
ング時の引張力のうちの一部をそのまま継続的に直線保
持張力として残留させつつ補強材を被覆するものである
。In order to achieve the above-mentioned object, the method of coating a reinforcing material on an optical fiber cable connection part according to the present invention maintains the chucking at the time of screening as it is, and at the same time, retains part of the tensile force at the time of screening as it is. This is to cover the reinforcing material while continuously maintaining the tension in a straight line.
補強材を被覆する際には、ファイバ心線は、スクリーニ
ング時のチャッキングがそのまま保持されているので、
補強部にねしれを内蔵することがなく、また、接続部は
直線保持張力にて引張られ、弛むことがない。When covering the reinforcing material, the fiber core retains the chucking during screening, so
There is no built-in twisting in the reinforcing part, and the connecting part is pulled with tension to keep it straight, so it will not loosen.
以下、実施例を示す図面に基づいて本発明を説明する。 EMBODIMENT OF THE INVENTION Hereinafter, this invention will be explained based on drawing which shows an Example.
第1図は本発明に係る補強材被覆方法に使用する補強材
被覆装置を示し、この装置は、左右のファイバチャック
部材1,2と、補強材としての熱収縮チューブ3加熱用
の加熱器4と、ファイバ接続部5に張力を加える張力発
生機構6と、を備え、第3図に示す前工程にて接続され
た一対の光ファイバ心線7,7をチャック部材1. 2
にてチャ・ツクし、熱収縮チューブ3を接続部5に被覆
するものである。FIG. 1 shows a reinforcing material coating device used in the reinforcing material coating method according to the present invention. and a tension generating mechanism 6 that applies tension to the fiber connection portion 5, and the pair of optical fiber cores 7, 7 connected in the previous step shown in FIG. 2
The connecting portion 5 is covered with the heat-shrinkable tube 3.
ここで、第3図に示す前工程とは、第3図(1)に示す
様に、一対の光ファイバ心線7.7の先端部だけ保護被
覆層を剥離し、プリコートも除去して光ファイバ素線9
.9を露出させ、保護被覆層端部から所定長さの所で鏡
面切断する。なお、方の光ファイバ心線7には予め熱収
縮チューブ3を外嵌させ、及び、(図示省略するが)ホ
ットメルト系接着剤のチューブを他方の光ファイバ心線
7に外嵌させておく。その後、加熱装置8にてファイバ
先端部を加熱し、第3図(II)に示す様に、光ファイ
バ素線9,9の先端面を相互に当接し、さらに微小寸法
だけ押付けて第3図([[[)に示すように接続する。Here, the pre-process shown in FIG. 3 means, as shown in FIG. 3 (1), that the protective coating layer is peeled off from only the tips of the pair of optical fiber cores 7 and 7, and the precoat is also removed. Fiber wire 9
.. 9 is exposed and mirror-cut at a predetermined length from the end of the protective coating layer. Note that a heat-shrinkable tube 3 is fitted onto one optical fiber 7 in advance, and a hot-melt adhesive tube (not shown) is fitted onto the other optical fiber 7 in advance. . Thereafter, the tip of the fiber is heated by the heating device 8, and the tip surfaces of the optical fibers 9, 9 are brought into contact with each other as shown in FIG. (Connect as shown in [[[].
そして、遊嵌状に外嵌してあった上記の(図示省略の)
ホットメルト系接着剤のチューブ及び未収縮の熱収縮チ
ューブ3を、露出したファイバ素線9.9に内層及び外
層として二重に外嵌状に対応させる。この時、さらにス
テンレス線やガラス棒等の補強添材を、内層のホットメ
ルト系接着剤のチューブと、外層の熱収縮チューブ3と
の間に挿入する(図示省略)。And the above (not shown) that was loosely fitted on the outside.
A tube of hot-melt adhesive and an unshrinkable heat-shrinkable tube 3 are fitted over the exposed fiber wire 9.9 as an inner layer and an outer layer. At this time, a reinforcing additive such as a stainless steel wire or a glass rod is further inserted between the inner layer hot melt adhesive tube and the outer layer heat shrink tube 3 (not shown).
しかして、一方のチャック部材1は固定され、他方のチ
ャック部材2は光ファイバ心線7.7の軸心方向に沿っ
て移動可能とされる。また、加熱器4は、第4図に示す
様に、接続部5に遊嵌被覆した熱収縮チューブ3を収納
する収納加熱室部10を有すると共に、ニクロム線等の
発熱体11が設けられている。なお、この第4図に於て
も熱収縮チューブ3内に挿入された(内層としての)ホ
ットメルト系接着剤チューブ及び補強添材の図示を省略
しである。Thus, one chuck member 1 is fixed, and the other chuck member 2 is movable along the axial direction of the optical fiber core 7.7. Further, as shown in FIG. 4, the heater 4 has a storage heating chamber 10 that stores the heat shrinkable tube 3 loosely fitted onto the connecting portion 5, and is provided with a heating element 11 such as a nichrome wire. There is. Note that the hot-melt adhesive tube (as an inner layer) inserted into the heat-shrinkable tube 3 and the reinforcing additive are not shown in FIG. 4 either.
次に、張力発生機構6は、第1図に示す様に、支点12
を中心として揺動すると共にその基端13aがチャック
部材2に枢着された#2動アーム13と、該揺動アーム
13の先端13bに枢着される引張コイルバネ等からな
る第1弾発部材14と、該第1弾発部材14の先端14
bが枢着される回転円板15と、基端16aが支点12
とチャック部材2との間のアーム13に連結される引張
コイルハネ等からなる第2弾発部材16と、を備え、第
2弾発部材16の先端16bが固定部17に連結されて
いる。また、回転円板15近傍には、リミットスイッチ
からなる第1スイッチL、が配設され、チャック部材2
の近傍にはりミントスイッチからなる第2スイツチL2
が配設されている。Next, as shown in FIG.
#2 swinging arm 13 which swings around the center and whose base end 13a is pivotally attached to the chuck member 2; and a first resilient member consisting of a tension coil spring etc. which is pivoted to the tip 13b of the swinging arm 13. 14, and the tip 14 of the first resilient member 14.
b is pivotally connected to the rotating disk 15, and the base end 16a is the fulcrum 12.
and a second resilient member 16 made of a tension coil spring or the like connected to the arm 13 between the chuck member 2 and the chuck member 2, and a tip 16b of the second resilient member 16 is connected to the fixing portion 17. Further, a first switch L consisting of a limit switch is disposed near the rotating disk 15, and a first switch L is provided near the rotating disk 15.
A second switch L2 consisting of a mint switch is installed near the
is installed.
従って、円板15が第1図に示す状態から矢印方向に回
転すれば、第1弾発部材14にてアームI3の先端13
bは円板15側へ引張られ、該第1弾発部材14の先端
14bが第1図に示す状態から円板軸心に関して反対位
置となった時には、アーム13の先端+3bは円板15
側へ最大に引張られ、チャック部材2は矢印へ方向へ最
大に引張られる。この状態で接続部5に、例えば、約2
00 gのスクリーニング張力が加えられるように設定
される。なお、第1図に示す状態では、接続部5には引
張力は作用しない。Therefore, if the disk 15 rotates in the direction of the arrow from the state shown in FIG.
b is pulled toward the disk 15, and when the tip 14b of the first resilient member 14 is in the opposite position with respect to the disk axis from the state shown in FIG.
The chuck member 2 is pulled to the maximum in the direction of the arrow. In this state, for example, approximately 2
A screening tension of 0.00 g is set to be applied. Note that, in the state shown in FIG. 1, no tensile force is applied to the connecting portion 5.
次に、上述の如く構成された補強材被覆装置にて、熱収
縮チューブ3の被覆方法を説明する。Next, a method of covering the heat-shrinkable tube 3 using the reinforcing material covering apparatus configured as described above will be explained.
即ち、接続された一対の光ファイバ心線7,7を、夫々
、チャック部材1.2にてチャックさせ、スイッチL、
がオン状態となる位置に回転円板15を回転させて停止
させる。つまり、第1図に示す状態とする。そして、第
2図(1)のタイムチャート図に示す様に、回転円板1
5は所定時間(つまり、T3秒)後にその回転を停止す
る(約415回転する。)。この時1/2回転時には上
述の如く、スクリーニング張力(約200g)が接続部
5に加わり、スクリーニング試験が行われ、415回転
時には、スクリーニング時の引張力のうちの一部がその
まま継続的に直線保持張力として残留し、接続部5には
弛みを形成させない。That is, the connected pair of optical fiber core wires 7, 7 are each chucked by the chuck member 1.2, and the switch L,
The rotary disk 15 is rotated to a position where it is in an on state and then stopped. In other words, the state shown in FIG. 1 is established. Then, as shown in the time chart of Fig. 2 (1), the rotating disk 1
5 stops its rotation (rotates approximately 415 times) after a predetermined time (that is, T3 seconds). At this time, at 1/2 rotation, a screening tension (approximately 200 g) is applied to the connection part 5 as described above, and a screening test is performed, and at 415 rotations, a part of the tensile force at the time of screening continues as it is in a straight line. It remains as a holding tension and does not form slack in the connecting portion 5.
そして、この場合、接続部5が断線しない場合、第2図
(1)に示す様に、発熱体11は通電され、所定時間(
つまり、12秒間)熱収縮チューブ3(外層)及びホン
トメルト系接着剤チューブ(内層)は加熱され、該チュ
ーブ3は熱収縮すると共に接着剤チューブは溶解してフ
ァイバ素線9,9の全長及びその近傍の保護被覆層にわ
たって被覆し、かつ、ステンレス線やガラス棒等の補強
添材は、上記溶解した接着剤にて包囲されて、ファイバ
素19.9の全長及び保護被覆層の端部に一体状として
、熱収縮したチューブ3にて締付けられる。なお、加熱
中は、図示省略のLEDが点灯し、加熱状態であること
を作業員に知らせる。その後、スイッチL、がオン状態
となるまで回転円板15のモータが回転して該回転円板
15は矢印方向にT3秒間回転して停止する。つまり、
回転円板15はその115回転する。In this case, if the connection part 5 is not disconnected, the heating element 11 is energized for a predetermined time (
That is, the heat shrinkable tube 3 (outer layer) and the true melt adhesive tube (inner layer) are heated (for 12 seconds), and the tube 3 is heat-shrinked and the adhesive tube is melted to reduce the total length of the fiber wires 9 and 9. The reinforcing additives, such as stainless steel wires and glass rods, are coated over the protective coating layer in the vicinity, and are surrounded by the melted adhesive, covering the entire length of the fiber element 19.9 and the ends of the protective coating layer. It is tightened as one piece with a heat-shrinkable tube 3. Note that during heating, an LED (not shown) lights up to notify the worker that the heating is in progress. Thereafter, the motor of the rotating disk 15 rotates until the switch L is turned on, and the rotating disk 15 rotates in the direction of the arrow for T3 seconds and then stops. In other words,
The rotating disk 15 rotates 115 times.
また、接続部5が断線した場合、チャック部材2は矢印
A方向に移動することになり、第2図(II)のタイム
チャート図に示す様に、スイッチL2がオン状態となり
、回転円板15のモータが回転して該回転円板15は矢
印方向にスイッチL1がオン状態となるまで回転して停
止する。つまり、回転円板15は1回転することになる
。この場合、図示省略のブザーから断線表示音(所定時
間、例えば2秒間)が発生すると共に、発熱体IIへは
通電されず、熱収縮チューブ3は熱収縮しない。Furthermore, when the connecting portion 5 is disconnected, the chuck member 2 moves in the direction of arrow A, and as shown in the time chart of FIG. 2 (II), the switch L2 is turned on and the rotating disk 15 The motor rotates, and the rotating disk 15 rotates in the direction of the arrow until the switch L1 is turned on, and then stops. In other words, the rotating disk 15 rotates once. In this case, a disconnection indicating sound (for a predetermined period of time, for example, 2 seconds) is generated from a buzzer (not shown), the heating element II is not energized, and the heat shrink tube 3 does not heat shrink.
従って、熱収縮チューブ3にて、露出した光ファイバ素
線9,9を被覆する際には、スクリーニング時のチャッ
キングがそのまま保持されると同時に、該スクリーニン
グ時の引張力のうちの一部をそのまま断続的に直接保持
張力として残留されつつ行われるので、接続部5は、ね
しれることも弛むこともない。なお、直線保持張力をF
′とし、スクリーニング張力をFとした場合、F′を、
Fの5%〜50%、好ましくは20%〜30%とする。Therefore, when covering the exposed optical fiber strands 9, 9 with the heat shrink tube 3, the chucking at the time of screening is maintained as is, and at the same time, part of the tensile force at the time of screening is absorbed. Since the connecting portion 5 is maintained intermittently as a direct holding tension, the connecting portion 5 will neither twist nor loosen. In addition, the straight line holding tension is F
′ and the screening tension is F, then F′ is
The content of F is 5% to 50%, preferably 20% to 30%.
実施例ではF ’ / F =50/200 (xl
OO) =25%とされる。In the example, F'/F = 50/200 (xl
OO) = 25%.
次に、第5図は被覆装置の変形例を示し、この場合、ス
イッチL2を第1弾発部材14と支点12との間に設け
られたものであり、同様に、モータ19が駆動して第5
図(It)に示す様に、クランク18が駆動し、このク
ランク18が第1弾発部材14をクランク18側へ引張
る。そして、この場合、仮に、接続部5が破断しなけれ
ばチャック部材2はほとんど移動しないが、破断すれば
、チャック部材2が矢印A方向に移動し、スイッチL2
が投入され、発熱体11には通電されない。また、第5
図(I[[)に示す様に、クランク18が約3/4回転
して停止し、接続部5に破断がなければ、発熱体11は
通電され、熱収縮チューブ3は熱収縮され、光ファイバ
素線9.9は被覆される。つまり、この場合も、熱収縮
の際は、スクリーニング時のチャッキングがそのまま保
持されると同時に該スクリーニング時の引張力のうちの
一部をそのまま継続的に直線保持張力として残留されつ
つ行われる。Next, FIG. 5 shows a modification of the coating device, in which the switch L2 is provided between the first resilient member 14 and the fulcrum 12, and similarly, the motor 19 drives the switch L2. Fifth
As shown in Figure (It), the crank 18 is driven and this crank 18 pulls the first resilient member 14 toward the crank 18 side. In this case, if the connection part 5 does not break, the chuck member 2 will hardly move, but if it breaks, the chuck member 2 will move in the direction of arrow A, and the switch L2
is turned on, and the heating element 11 is not energized. Also, the fifth
As shown in the figure (I [[), when the crank 18 rotates about 3/4 and stops, and there is no breakage in the connection part 5, the heating element 11 is energized, the heat shrink tube 3 is heat-shrinked, and the light is emitted. The fiber strand 9.9 is coated. That is, in this case as well, heat shrinkage is carried out while the chucking during screening is maintained as is, and at the same time, a portion of the tensile force during screening continues to remain as a linear holding tension.
なお、本発明は上述の実施例以外にも変更自由なことは
勿論であり、例えば、光ファイバがテープ形多芯光ファ
イバである場合には、上述の補強添材としては略半月形
横断面のガラス棒を使用して、その平坦面をテープ形多
芯光ファイバ心線に添わせて、同様の方法にて熱収縮チ
ューブを加熱収縮させると同時にホットメルト系接着剤
のチューブを溶してその後冷却固化にて接着一体化する
。It should be noted that the present invention can of course be modified in addition to the embodiments described above. For example, in the case where the optical fiber is a tape-shaped multicore optical fiber, the reinforcing additive described above may have a substantially half-moon cross section. Using a glass rod, attach its flat surface to the tape-shaped multicore optical fiber core wire, heat-shrink the heat-shrinkable tube in the same way, and melt the hot-melt adhesive tube at the same time. After that, they are bonded and integrated by cooling and solidifying.
また、テープ形多芯光ファイバ心線接続部に、細長矩形
状のガラス板とセラ元ツタ板等の2枚の補強板であって
、ホットメルト系接着剤を接合面に有するものにて、サ
ンドウィンチ状に挾んで、加圧加熱することで、該接続
部を被覆して補強するも、自由である(つまり、本発明
に於ては、熱収縮チューブを使用しないこともありえる
)。In addition, at the tape-type multicore optical fiber core wire connection part, two reinforcing plates such as an elongated rectangular glass plate and a ceramoto vine plate, which have a hot melt adhesive on the joint surface, are used. It is also possible to cover and reinforce the connecting portion by sandwiching it in a sandwich shape and pressurizing and heating it (that is, in the present invention, it is possible not to use a heat shrink tube).
本発明は上述の如く構成されたので次に記載する効果を
奏する。Since the present invention is configured as described above, it produces the effects described below.
熱収縮チューブ3を熱収縮したり、2枚の補強板にてサ
イドウィッチ状として加熱加圧して、補強材を被覆する
際には、ファイバ接続部5は、ねじれていることも弛ん
でいることもない状態で保持され、接続部5の信頼性を
十分保証することができ、接続された光ファイバ心線7
.7は品質が安定し、かつ耐久性に優れたものとなる。When heat-shrinking the heat-shrinkable tube 3 or heating and pressurizing it with two reinforcing plates in the form of a side witch to cover the reinforcing material, the fiber connecting portion 5 should not be twisted or loose. The reliability of the connecting portion 5 can be fully guaranteed, and the connected optical fiber core 7
.. 7 has stable quality and excellent durability.
第1図は本発明に係る補強材被覆方法に使用する補強材
被覆装置の簡略図、第2図はタイムチャート図、第3図
は光ファイバの接続工程図、第4図は加熱器の断面図、
第5図は被覆装置の変形例の簡略図である。
3・・・熱収縮チューブ。Fig. 1 is a simplified diagram of the reinforcing material coating device used in the reinforcing material coating method according to the present invention, Fig. 2 is a time chart diagram, Fig. 3 is a diagram of the optical fiber connection process, and Fig. 4 is a cross section of the heater. figure,
FIG. 5 is a simplified diagram of a modification of the coating device. 3...Heat shrink tube.
Claims (1)
ると同時に該スクリーニング時の引張力のうちの一部を
そのまま継続的に直線保持張力として残留させつつ補強
材を被覆することを特徴とする光ファイバ心線接続部へ
の補強材被覆方法。1. An optical fiber core connection characterized by maintaining the chucking during screening as it is and at the same time, coating a reinforcing material while allowing a part of the tensile force during screening to remain as straight line holding tension. Method of covering reinforcement material on parts.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2985590A JPH03233413A (en) | 1990-02-08 | 1990-02-08 | Method for optical fiber connecting part with reinforcing material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2985590A JPH03233413A (en) | 1990-02-08 | 1990-02-08 | Method for optical fiber connecting part with reinforcing material |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH03233413A true JPH03233413A (en) | 1991-10-17 |
Family
ID=12287580
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2985590A Pending JPH03233413A (en) | 1990-02-08 | 1990-02-08 | Method for optical fiber connecting part with reinforcing material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH03233413A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009086201A (en) * | 2007-09-28 | 2009-04-23 | Fujikura Ltd | Reinforcing sleeve heating device of optical fiber |
JP2015197638A (en) * | 2014-04-02 | 2015-11-09 | 株式会社フジクラ | Optical device, fiber laser, and manufacturing method of optical device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6250710A (en) * | 1985-08-30 | 1987-03-05 | Sumitomo Electric Ind Ltd | Optical fiber reinforcing device with tensile force loading device |
-
1990
- 1990-02-08 JP JP2985590A patent/JPH03233413A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6250710A (en) * | 1985-08-30 | 1987-03-05 | Sumitomo Electric Ind Ltd | Optical fiber reinforcing device with tensile force loading device |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009086201A (en) * | 2007-09-28 | 2009-04-23 | Fujikura Ltd | Reinforcing sleeve heating device of optical fiber |
JP2015197638A (en) * | 2014-04-02 | 2015-11-09 | 株式会社フジクラ | Optical device, fiber laser, and manufacturing method of optical device |
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