JPH05224073A - Reinforcement structure of optical fiber fusion type device - Google Patents
Reinforcement structure of optical fiber fusion type deviceInfo
- Publication number
- JPH05224073A JPH05224073A JP2500592A JP2500592A JPH05224073A JP H05224073 A JPH05224073 A JP H05224073A JP 2500592 A JP2500592 A JP 2500592A JP 2500592 A JP2500592 A JP 2500592A JP H05224073 A JPH05224073 A JP H05224073A
- Authority
- JP
- Japan
- Prior art keywords
- adhesive
- reinforcing member
- optical fiber
- fusion
- sides
- 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
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- Mechanical Coupling Of Light Guides (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、光通信回路において、
光を分岐・結合あるいは合分波する光ファイバ融着型デ
バイスの補強構造に関する。BACKGROUND OF THE INVENTION The present invention relates to an optical communication circuit,
The present invention relates to a reinforcing structure of an optical fiber fusion-type device that splits, combines, or multiplexes light.
【０００２】光ファイバ融着型デバイス（以下、デバイ
スと略記する）は２本の光ファイバを並行に整列し融着
してなり、その融着部分を補強部材に接着剤で固着し補
強している。接着剤により固着するため、接着剤の硬化
収縮や高温、高湿の環境下での収縮膨張によりデバイス
の特性に悪影響を与えない補強構造が要望されている。An optical fiber fusion type device (hereinafter abbreviated as a device) is formed by aligning and fusing two optical fibers in parallel, and the fused portion is fixed to a reinforcing member with an adhesive to reinforce it. There is. Since it is fixed by an adhesive, there is a demand for a reinforcing structure that does not adversely affect the characteristics of the device due to curing shrinkage of the adhesive and contraction and expansion in an environment of high temperature and high humidity.
【０００３】[0003]
【従来の技術】従来のデバイスの補強構造は図６の側断
面図に示すように、光ファイバケーブル11の被覆を除去
して露出した光ファイバ心線を並行に整列しそれらを加
熱融着して延伸一体化してなるデバイス12と、そのデバ
イス12を挿通しその両側被覆部12a 及び融着部12b まで
覆う長さで軸心で２分割した石英ガラス材の円筒体から
なる補強部材13とからなり、その補強部材13の軸心にデ
バイス12を挿通・保持し、内部の中央部分を除く空間、
即ち融着部12b の両端及び両側被覆部12a を包むように
接着剤14を充填し固着している。2. Description of the Related Art As shown in the side sectional view of FIG. 6, a conventional reinforcing structure of a device is to remove the coating of the optical fiber cable 11 and align the exposed optical fiber cores in parallel and heat-bond them. And a device 12 integrally formed by stretching, and a reinforcing member 13 composed of a cylindrical body of quartz glass material, which is inserted into the device 12 and covers the both side covering portions 12a and the fusion-bonding portion 12b and is divided into two by an axial center. The device 12 is inserted and held in the axial center of the reinforcing member 13, and the space excluding the central portion inside is
That is, the adhesive 14 is filled and fixed so as to wrap both ends of the fusion-bonded portion 12b and both-side coating portions 12a.
【０００４】[0004]
【発明が解決しようとする課題】しかしながら、このよ
うな上記補強構造によれば、デバイスを補強部材に固着
する接着剤は融着部の両端及び両側被覆部を包む内部空
間に充填状態になっているため、接着剤の硬化の際の収
縮や接着剤の温湿度による収縮膨張の際に接着剤自体の
変位量が大きく、収縮の場合は光ファイバは引っ張ら
れ、膨張の場合は半径方向に変位せず補強部材の軸方
向、即ち光ファイバの軸方向に変位し光ファイバ固着部
の界面剥離が生じ光ファイバに内部応力を発生させデバ
イスの特性に悪影響を及ぼすといった問題があった。However, according to such a reinforcing structure as described above, the adhesive for fixing the device to the reinforcing member is filled in the inner space wrapping both ends of the fusion-bonded portion and both side coating portions. Therefore, the amount of displacement of the adhesive itself is large when the adhesive cures and when the adhesive contracts and expands due to temperature and humidity.In the case of contraction, the optical fiber is pulled, and in the case of expansion, it is displaced in the radial direction. Without this, there is a problem that the reinforcing member is displaced in the axial direction, that is, the axial direction of the optical fiber, and the interface separation of the optical fiber fixing portion occurs, causing internal stress in the optical fiber and adversely affecting the device characteristics.
【０００５】上記問題点に鑑み、本発明はデバイスを補
強部材に固着する接着剤の硬化の際の収縮や接着剤の温
湿度による収縮膨張がデバイスの特性に悪影響を及ぼす
ことのない光ファイバ融着型デバイスの補強構造を提供
することを目的とする。In view of the above problems, the present invention provides an optical fiber fusion device that does not adversely affect the characteristics of the device due to shrinkage during curing of the adhesive for fixing the device to the reinforcing member and shrinkage and expansion of the adhesive due to temperature and humidity. An object is to provide a reinforcing structure for a wearable device.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の光ファイバ融着型デバイスの補強構造にお
いては、光ファイバケーブルの被覆を除去して露出した
光ファイバ心線を並行に整列しそれらを加熱融着して延
伸一体化してなるデバイスと、該デバイスを挿通し融着
部及びその両側被覆部まで覆う長さで軸心で２分割した
筒体からなる補強部材とからなり、該補強部材の軸心に
挿通した前記デバイスの両側被覆部はその外周全体を接
着剤で補強部材に固着し、前記融着部の両側はその断面
の一部が接着剤で補強部材に固着し構成する。In order to achieve the above object, in the reinforcing structure of the optical fiber fusion type device of the present invention, the coating of the optical fiber cable is removed to expose the exposed optical fiber cores in parallel. It is composed of a device that is aligned and heat-fused to stretch and integrate them, and a reinforcing member that is a cylindrical body that is divided into two parts with an axial center with a length that penetrates the device and covers the fusion-bonded part and both side covering parts. , The both side covering portions of the device inserted through the axis of the reinforcing member have their entire outer peripheries fixed to the reinforcing member with an adhesive, and both sides of the fusion-bonded portion have a part of their cross section fixed to the reinforcing member with an adhesive. Then configure.
【０００７】[0007]
【作用】デバイスの両側被覆部では全充填の接着剤で、
融着部の中央部を除く両側は補強部材の片方側のみに半
充填した接着剤で固着することにより、融着部分の接着
剤は中央で途切れ且つ接着剤の充填量が減少するため、
接着剤の硬化の際の収縮による引っ張り合いや接着剤の
温湿度による収縮膨張による軸方向の変位は小さくな
り、接着剤の収縮膨張によってデバイスに発生する内部
応力を殆どなくしデバイスの特性に悪影響を与えないよ
うにすることができる。[Function] On both sides of the device, fully filled adhesive,
By fixing with a half-filled adhesive on only one side of the reinforcing member on both sides excluding the central portion of the fused portion, the adhesive at the fused portion is interrupted at the center and the filling amount of the adhesive decreases,
Tension due to contraction during curing of the adhesive and axial displacement due to contraction and expansion of the adhesive due to temperature and humidity are reduced, and internal stress generated in the device due to contraction and expansion of the adhesive is almost eliminated, which adversely affects the device characteristics. You can choose not to give.
【０００８】[0008]
【実施例】以下、図面に示した実施例に基づいて本発明
の要旨を詳細に説明する。図１の側断面図及び図２の分
解斜視図に示すように、光ファイバ融着型デバイスの補
強構造は、２本の光ファイバケーブル１の被覆を除去し
て露出したそれぞれの光ファイバ心線1aを並行に整列し
それらを加熱融着して延伸一体化してなるデバイス２
と、そのデバイス２を挿通しその両側被覆部2a及び融着
部2bまで覆う長さの、軸心で２分割した石英ガラスの円
筒体からなる補強部材３（図は補強部材３の割り面を水
平に置き、その側面から見ている）とからなり、その補
強部材３の軸心に挿通したデバイス２をエポキシ樹脂系
の接着剤４で固着する。即ち、デバイス２の両側被覆部
2aは全充填の接着剤4aで、融着部2bの中央部を除く両側
は補強部材３の片方側（下側補強部材3a) だけに半充填
した同じく接着剤4bで固着し構成する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The gist of the present invention will be described in detail below with reference to the embodiments shown in the drawings. As shown in the side cross-sectional view of FIG. 1 and the exploded perspective view of FIG. 2, the reinforcing structure of the optical fiber fusion-type device has a structure in which the coatings of the two optical fiber cables 1 are removed and exposed. Device 2 in which 1a are aligned in parallel, and they are heat-fused and stretched and integrated.
And a reinforcing member 3 made of a quartz glass cylindrical body having a length that covers the both sides of the covering portion 2a and the fusion-bonding portion 2b through the device 2 and is divided into two parts along the axis (the split surface of the reinforcing member 3 is shown in the figure. The device 2 which is placed horizontally and is viewed from the side surface thereof and is inserted through the axis of the reinforcing member 3 is fixed by an epoxy resin adhesive 4. That is, both sides of the device 2
2a is a full-filled adhesive 4a, and both sides of the fusion-bonded portion 2b excluding the central portion are fixed by the same adhesive 4b which is half-filled only on one side of the reinforcing member 3 (the lower reinforcing member 3a).
【０００９】この光ファイバ融着型デバイスの補強構造
の組立はつぎのように行う。図２に示すように、先ず補
強部材３の一方、即ち下側補強部材3aには上側補強部材
3bと組み合わせたとき、上側補強部材3bの中間内面に接
着剤４、即ち4bが接触せずに被覆部2a及び融着部2bの中
央を除いた両側を固着することのできる領域Ｌ1 の範囲
に接着剤４、即ち4a, 4bを塗布する。The assembling of the reinforcing structure of this optical fiber fusion type device is carried out as follows. As shown in FIG. 2, first, one of the reinforcing members 3, that is, the lower reinforcing member 3a, has an upper reinforcing member.
When combined with 3b, the range of the region L 1 where the adhesive 4 (ie, 4b) can be fixed to both sides of the covering portion 2a and the fusion-bonding portion 2b excluding the center without being contacted with the intermediate inner surface of the upper reinforcing member 3b. Adhesive 4, that is, 4a and 4b, is applied to.
【００１０】一方、上側補強部材3bには被覆部2aのみに
接着剤4aが接触するように領域Ｌ2の範囲に塗布する。
そして、下側補強部材3aの接着剤４(4a, 4b)の上面にデ
バイス２を融着部2bの平面視Ｙ字形を割り面に並行な姿
勢にして置き、上側補強部材3bを上方から組み合わせ接
着剤４(4a, 4b) を硬化させる。そのとき、デバイス２
の両側被覆部2aの接着剤4aは全充填状態で、融着部2bの
中央を除いた両側部分の接着剤4bは半充填状態で互いに
連通し固着する。この組立完成状態は図１に示した側断
面図のとおりとなる。On the other hand, the upper reinforcing member 3b is applied in the range of the region L 2 so that the adhesive 4a comes into contact with only the covering portion 2a.
Then, the device 2 is placed on the upper surface of the adhesive 4 (4a, 4b) of the lower reinforcing member 3a so that the Y-shape in plan view of the fusion bonding portion 2b is parallel to the split surface, and the upper reinforcing member 3b is combined from above. The adhesive 4 (4a, 4b) is cured. At that time, device 2
The adhesive 4a of the both-side covering portion 2a is in a fully filled state, and the adhesives 4b of both side portions except for the center of the fusion-bonded portion 2b are in a semi-filled state and are fixed to each other. The completed state of assembly is as shown in the side sectional view of FIG.
【００１１】このように、デバイスの両側被覆部は上
側、下側補強部材に挟まれその内部空間は接着剤が充填
され、融着部の中央を除く両側は下側補強部材にのみ接
着剤が充填されて固着され上側補強部材には全く固着さ
れないため、接着剤の硬化の際の収縮による引っ張り合
いや接着剤の温湿度による収縮膨張による軸方向の変位
は小さくなり、接着剤の収縮あるいは膨張によってデバ
イスに発生する内部応力を小さくしデバイスの特性に悪
影響を与えないようにすることができる。As described above, the both side covering portions of the device are sandwiched between the upper and lower reinforcing members and the inner space thereof is filled with the adhesive, and the adhesive is filled only in the lower reinforcing member on both sides except the center of the fused portion. Since it is filled and fixed and not fixed to the upper reinforcing member at all, the pulling due to contraction during curing of the adhesive and the axial displacement due to contraction and expansion of the adhesive due to temperature and humidity are reduced, and the adhesive contracts or expands. By doing so, it is possible to reduce the internal stress generated in the device and prevent the device characteristics from being adversely affected.
【００１２】つぎの図３は他の実施例の側断面図であ
る。上記実施例の上側補強部材を省き膨張などによる内
部応力の発生を防ぐ構造である。即ち、細長い石英ガラ
ス板からなる補強部材3cにデバイス２の両側被覆部2aは
外周を包み、融着部2bの中央を除く両側は接触するか、
あるいは僅かに被る程度の接着剤4c,4d で固着し構成す
る。FIG. 3 is a side sectional view of another embodiment. This is a structure in which the upper reinforcing member of the above embodiment is omitted and internal stress is prevented from being generated due to expansion or the like. That is, the both-side covering portions 2a of the device 2 are wrapped around the outer periphery of the reinforcing member 3c made of an elongated quartz glass plate, and both sides except the center of the fusion-bonded portion 2b are in contact with each other.
Alternatively, the adhesives 4c and 4d, which are slightly covered, are used for fixing.
【００１３】その組立方法は、先ず、補強部材3cにデバ
イス２の両側被覆部2aは外周を包む程度及び融着部2bの
中央を除く両側は接触する程度の接着剤4c,4d を塗布し
ておき、それをデバイス２の下方から当てがいデバイス
２の両側被覆部2aは接着剤4cの中に埋め、融着部2bの中
央を除く両側は接着剤4dに接触するか、あるいは僅かに
被る状態に保持して固着する。The assembling method is as follows. First, apply the adhesives 4c and 4d to the reinforcing member 3c to such an extent that the both-side covering portion 2a of the device 2 wraps the outer periphery and that both sides except the center of the fusion-bonding portion 2b contact each other. Then, it is applied from below the device 2 so that both side coating portions 2a of the device 2 are embedded in the adhesive 4c, and both sides except the center of the fusion bonding portion 2b are in contact with or slightly covered with the adhesive 4d. Hold on and stick.
【００１４】このように、この実施例においてはデバイ
スを細長い石英ガラス板からなる補強部材に固着するこ
とにより、先の実施例ではデバイスの両側被覆部は上
側、下側補強部材に挟まれ充填された接着剤で固着され
たが、上側補強部材を省いた構成にしているため接着剤
は上下方向（半径方向）には拘束されず、接着剤の温湿
度による収縮膨張による軸方向の変位は一層小さくな
り、接着剤の収縮膨張によってデバイスに発生する内部
応力を一層小さくすることができる。As described above, in this embodiment, the device is fixed to the reinforcing member made of an elongated quartz glass plate, so that in the previous embodiment, the both side coating portions of the device are sandwiched between the upper and lower reinforcing members and filled. However, since the upper reinforcing member is omitted, the adhesive is not constrained in the vertical direction (radial direction), and the axial displacement due to contraction and expansion due to temperature and humidity of the adhesive is further reduced. The internal stress generated in the device due to the contraction and expansion of the adhesive can be further reduced.
【００１５】また、図４の要部斜視図にも更に他の実施
例を示す。図示するように円筒形のガラス管からなる補
強部材3-1 （上記実施例のように縦に２分割していな
い）に光ファイバ融着型デバイス２を収容し、注射器５
などにより接着剤４、即ち4eを注入する。接着剤4eを注
入する際は融着部2bの被覆側端部断面の一部が補強部材
3-1 に固着されるように注入する。さらに、両側の被覆
部2aにはその全体が補強部材3-1 に固着されるように接
着剤4fを注入する。Still another embodiment is shown in the perspective view of the main part of FIG. As shown in the drawing, the optical fiber fusion-bonding type device 2 is housed in a reinforcing member 3-1 (not vertically divided into two as in the above embodiment) made of a cylindrical glass tube, and a syringe 5 is used.
Adhesive 4, that is, 4e is injected by the above method. When injecting the adhesive 4e, a part of the coating-side end cross section of the fusion-bonded portion 2b is a reinforcing member.
Inject so that it sticks to 3-1. Further, the adhesive 4f is injected into the covering portions 2a on both sides so that the whole covering portion 2a is fixed to the reinforcing member 3-1.
【００１６】上記、いずれの実施例も図５の斜視図に示
す（図３の実施例を金属パイプに固着する場合を示す）
ようにデバイスを固着した補強部材３を他の金属パイプ
５の軸心に挿入保持し両端を図示しないシール材で封止
するのが望ましく、そうすることにより更に補強を強化
し防湿、防塵することができる。Each of the above embodiments is shown in the perspective view of FIG. 5 (the embodiment of FIG. 3 shows a case of being fixed to a metal pipe).
It is desirable that the reinforcing member 3 to which the device is fixed is inserted and held in the axial center of the other metal pipe 5 and both ends are sealed by the sealing material (not shown). By doing so, reinforcement is further strengthened to prevent moisture and dust. You can
【００１７】[0017]
【発明の効果】以上、詳述したように本発明によれば、
接着剤の収縮膨張によるデバイスの内部応力を小さくす
ることができるためにデバイスの特性に悪影響を及ぼす
ことはなく、温度特性及び耐湿性の優れた光ファイバ融
着型デバイスを提供することができるといった産業上極
めて有用な効果を発揮する。As described above in detail, according to the present invention,
Since it is possible to reduce the internal stress of the device due to the contraction and expansion of the adhesive, the characteristics of the device are not adversely affected, and it is possible to provide an optical fiber fusion type device having excellent temperature characteristics and moisture resistance. It has extremely useful effects in industry.
【図１】 本発明による一実施例の側断面図FIG. 1 is a side sectional view of an embodiment according to the present invention.
【図２】 図１の組立を示す分解斜視図FIG. 2 is an exploded perspective view showing the assembly of FIG.
【図３】 本発明による他の実施例の側断面図FIG. 3 is a side sectional view of another embodiment according to the present invention.
【図４】 本発明による更に他の実施例の要部斜視図FIG. 4 is a perspective view of a main part of still another embodiment according to the present invention.
【図５】 図３を金属パイプに固着する場合の斜視図FIG. 5 is a perspective view when FIG. 3 is fixed to a metal pipe.
【図６】 従来技術による側断面図FIG. 6 is a side sectional view according to the related art.
１は光ファイバケーブル 1aは光ファイバ心線 ２はデバイス（光ファイバ融着型デバイス） 2aは被覆部 2bは融着部 3,3cは補強部材 4,4a,4b,4c,4d,4e,4fは接着剤 1 is an optical fiber cable 1a is an optical fiber core wire 2 is a device (optical fiber fusion type device) 2a is a covering portion 2b is a fusion portion 3,3c is a reinforcing member 4,4a, 4b, 4c, 4d, 4e, 4f Is an adhesive
Claims (1)
て露出した光ファイバ心線(1a)を並行に整列しそれらを
加熱融着して延伸一体化してなるデバイス(2) と、該デ
バイス(2) を挿通しその両側被覆部(2a)及び融着部(2b)
まで覆う長さの補強部材(3) とからなり、該補強部材
(3) の軸心に挿通した前記デバイス(2)の両側被覆部(2
a)はその外周全体を接着剤(4a)で補強部材(3) に固着
し、前記融着部(2b)の両側はその断面の一部が接着剤(4
b)で補強部材(3) に固着してなることを特徴とする光フ
ァイバ融着型デバイスの補強構造。1. A device (2) in which the coating of the optical fiber cable (1) is removed and the exposed optical fiber core wires (1a) are aligned in parallel and they are heat-fused and stretched and integrated, Insert the device (2) through both sides of the cover (2a) and fusion (2b)
A reinforcing member (3) having a length covering up to
Both sides of the device (2) inserted in the axis of (3) (2
In (a), the entire outer periphery is fixed to the reinforcing member (3) with an adhesive (4a).
A reinforcing structure for an optical fiber fusion-bonding device, characterized in that it is fixed to the reinforcing member (3) in b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2500592A JPH05224073A (en) | 1992-02-12 | 1992-02-12 | Reinforcement structure of optical fiber fusion type device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2500592A JPH05224073A (en) | 1992-02-12 | 1992-02-12 | Reinforcement structure of optical fiber fusion type device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05224073A true JPH05224073A (en) | 1993-09-03 |
Family
ID=12153832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2500592A Pending JPH05224073A (en) | 1992-02-12 | 1992-02-12 | Reinforcement structure of optical fiber fusion type device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05224073A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1134607A3 (en) * | 1999-09-14 | 2001-09-19 | JDS Uniphase Inc. | Aligning and manufacturing components |
-
1992
- 1992-02-12 JP JP2500592A patent/JPH05224073A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1134607A3 (en) * | 1999-09-14 | 2001-09-19 | JDS Uniphase Inc. | Aligning and manufacturing components |
| EP1134607A2 (en) * | 1999-09-14 | 2001-09-19 | JDS Uniphase Inc. | Aligning and manufacturing components |
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| A02 | Decision of refusal |
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