JPH0339761Y2 - - Google Patents
Info
- Publication number
- JPH0339761Y2 JPH0339761Y2 JP1983178900U JP17890083U JPH0339761Y2 JP H0339761 Y2 JPH0339761 Y2 JP H0339761Y2 JP 1983178900 U JP1983178900 U JP 1983178900U JP 17890083 U JP17890083 U JP 17890083U JP H0339761 Y2 JPH0339761 Y2 JP H0339761Y2
- Authority
- JP
- Japan
- Prior art keywords
- optical fiber
- cord
- fiber cord
- rubber
- length processing
- 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
Links
- 239000013307 optical fiber Substances 0.000 claims description 51
- 229920001971 elastomer Polymers 0.000 claims description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- 239000000835 fiber Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229920006311 Urethane elastomer Polymers 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Landscapes
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Description
【考案の詳細な説明】
本案は光フアイバ接続箱本体１の光フアイバコ
ードに外部からの張力がかかつた場合も側圧を受
けたり、切断したりすることなく光フアイバコー
ドを安定に固定支持でき、光伝送に当たつてイク
ロベンデイング損失を生ぜしめないことを特徴と
する光フアイバ接続箱の光フアイバコード固定装
置に関するものである。[Detailed description of the invention] This invention allows the optical fiber cord of the optical fiber connection box body 1 to be stably fixed and supported without receiving lateral pressure or being cut even when external tension is applied to the optical fiber cord. The present invention relates to an optical fiber cord fixing device for an optical fiber junction box, which is characterized in that it does not cause microbending loss during optical transmission.
従来、この種光フアイバ接続箱は存するが、該
接続箱内の露出状の光フアイバ心部、即ち余長処
理部が外部よりの牽引等の場合、その張力がコー
ドの余長処理部では許容曲げ半径以上の半径で円
を形成しているので問題はないが、コード引留部
において外部から牽引された場合側圧がかかり、
その余長処理に及び切断又は側圧によるマイクロ
ベンデイング発生等の支障を防止すべき良好な手
段はなく、マイクロベンデイング等の支障を引き
起こす欠点を存したものである。 Conventionally, this kind of optical fiber junction box exists, but when the exposed optical fiber core in the junction box, that is, the excess length processing section, is pulled from the outside, the tension is not permissible in the extra length processing section of the cord. There is no problem because the circle is formed with a radius greater than the bending radius, but if the cord is pulled from the outside at the cord retention part, lateral pressure will be applied.
There is no good means to deal with the excess length and prevent problems such as microbending caused by cutting or lateral pressure, and there is a drawback that problems such as microbending occur.
尚、実開昭53−132353号の如きものも開示され
るところであるが、単に接続装置に関するものに
他ならず、光フアイバ接続箱内の余長処理部が外
部よりの張力等の影響を受けた際、切断又はスト
レス発生防止の作用は存在しないものである。 Incidentally, a method such as Utility Model Application No. 53-132353 is also disclosed, but it is nothing but a connection device, and the surplus length processing section in the optical fiber connection box is affected by external tension, etc. In this case, there is no effect of preventing cutting or stress generation.
更に実開昭57−175106号のようなものも開示さ
れる次第であるが、これまた単光フアイバ接続部
の接続箱に過ぎず、接続箱内の露出状の光フアイ
バ余長処理部に対し、外部張力の及んだ場合、影
響を受けてフアイバの切断又は側圧によるストレ
ス現象発生等の支障を防止すべき構成並びに作用
は存しないものである。然るに本案においては、
接続箱の側壁部２に光フアイバコード引込部に柔
軟性に富んだネオプレンゴム等のゴム材を使用
し、その上に光フアイバコードを載置し、更にそ
の上からゴム状弾性を有する押さえ板を締め付け
ることにより光フアイバコードを該部で不動状に
固定し、接続箱外の牽引力等が余長処理部に及ば
ないようにしたから、該部が外部張力により切断
したり摺動による側圧のため、マイクロベンデイ
ングを引き起こす等の欠点を防止出来るものであ
る。今、ここに本案実施の一例を示した添付図面
について詳説する。 Furthermore, a device such as Utility Model Application Publication No. 57-175106 will be disclosed, but this is also only a connection box for a single optical fiber connection section, and the exposed optical fiber surplus length processing section in the connection box is not covered. However, when an external tension is applied, there is no structure or function to prevent problems such as fiber breakage or occurrence of stress phenomena due to lateral pressure. However, in the main case,
A highly flexible rubber material such as neoprene rubber is used for the optical fiber cord lead-in part on the side wall portion 2 of the junction box, the optical fiber cord is placed on top of the rubber material, and a pressing plate with rubber-like elasticity is placed on top of the optical fiber cord. By tightening the fiber optic fiber cord, the optical fiber cord is immovably fixed at that part, and the traction force from outside the junction box does not reach the extra length processing part, so this part will not be cut by external tension or lateral pressure due to sliding will occur. Therefore, defects such as microbending can be prevented. Now, detailed description will be given of the attached drawings showing an example of implementation of the present invention.
１は光フアイバ接続箱本体で、２は該本体１の
側壁である。３はコードロツクで、光フアイバコ
ード４，４を該側壁２を貫通支持するもので、コ
ードロツク３と光フアイバコード４，４との間に
ゴム材を介在させて該コード４，４に損傷を与え
ないように支持するものである。５，５は光フア
イバコード４，４の心線４ａ，４ａで露出状余長
処理部で、許容曲げ半径以上の半径で円形を成形
したもので、夫々ゴム製の光フアイバ余長処理ホ
ルダー６，６で光フアイバ接続箱本体１の鉄板製
ベース７上に支持されたものである。８は光フア
イバコード４，４を引き留めるためのゴムプレー
トで、柔軟性に富んだネオプレンゴムで作製し、
前記コードロツク３と光フアイバコード４，４の
心線４ａ，４ａの余長処理部５，５との中間の該
鉄板製ベース７上に両面テープ等で貼着したもの
である。９はゴム状弾性を有する透明アクリル樹
脂板製押さえ板で、ゴムプレート８上に光フアイ
バコード４，４を載置し、両側に挿通したビス１
０，１０により鉄板製ベース７に締め付け、光フ
アイバコード４，４を不動状に固定するものであ
る。１１は二心光フアイバケーブルで、前記側壁
２にケーブルロツク１２で支持し、該ケーブル１
１に傷を付けないように該ケーブル１１とケーブ
ルロツク１２間にゴム材を介在させたものであ
る。１３，１３は光フアイバケーブル１１の心線
である。１４，１４は該心線１３，１３の余長処
理部で、前記同様に光フアイバ余長処理ホルダー
６，６で光フアイバ接続箱本体１の鉄板製ベース
７上に支持したものである。１５は光フアイバ接
続支持部で、光フアイバコード４，４の心線４
ａ，４ａと光フアイバケーブル１１の心線１３，
１３とを突き合わせて融着接続し、融着補強チユ
ーブ１６，１６を施した公知のフアイバ接続部１
７，１７を支持するもので、ウレタンゴム製板状
体１５ａの表裏中間部に貫通孔１８，１８を穿設
し、該板状体１５ａの表面より貫通孔１８，１８
に達する溝１９，１９を成形したものである。２
０はテンシヨンメンバー固定用ターミナルで、光
フアイバケーブル１１の先端部の鉄板製ベース７
上に固定したもので、該ケーブル１１のテンシヨ
ンメンバー２１を固定し、作業性を良好にするも
のである。２２は扉である。 1 is the optical fiber junction box main body, and 2 is the side wall of the main body 1. 3 is a cord lock that supports the optical fiber cords 4, 4 through the side wall 2, and a rubber material is interposed between the cord lock 3 and the optical fiber cords 4, 4 to prevent damage to the cords 4, 4. It is supported to ensure that there is no such thing. Reference numerals 5 and 5 denote exposed extra length processing parts of the optical fiber cords 4a and 4a, which are formed into a circular shape with a radius greater than the allowable bending radius, and are each made of a rubber optical fiber extra length processing holder 6. , 6 are supported on the iron plate base 7 of the optical fiber junction box main body 1. 8 is a rubber plate for holding the optical fiber cords 4, 4, made of highly flexible neoprene rubber,
It is attached to the iron plate base 7 between the cord lock 3 and the extra length processing portions 5, 5 of the core wires 4a, 4a of the optical fiber cords 4, 4 with double-sided tape or the like. Reference numeral 9 denotes a holding plate made of a transparent acrylic resin plate having rubber-like elasticity, and the optical fiber cords 4, 4 are placed on the rubber plate 8, and screws 1 are inserted through both sides.
0 and 10 to fix the optical fiber cords 4, 4 immovably to the iron plate base 7. Reference numeral 11 denotes a two-core optical fiber cable, which is supported by a cable lock 12 on the side wall 2, and the cable 1
A rubber material is interposed between the cable 11 and the cable lock 12 so as not to damage the cable 11. 13, 13 are core wires of the optical fiber cable 11. Reference numerals 14, 14 denote surplus length processing sections for the core wires 13, 13, which are supported on the iron plate base 7 of the optical fiber connection box main body 1 by optical fiber surplus length processing holders 6, 6 in the same manner as described above. Reference numeral 15 denotes an optical fiber connection support part for connecting the core wires 4 of the optical fiber cords 4, 4.
a, 4a and the core wire 13 of the optical fiber cable 11,
13 and are fused and spliced together and provided with fused reinforcing tubes 16, 16.
7, 17, through-holes 18, 18 are bored in the middle part of the front and back of the urethane rubber plate-like body 15a, and the through-holes 18, 18 are formed from the surface of the plate-like body 15a.
Grooves 19, 19 reaching the length of the grooves are molded. 2
0 is a terminal for fixing the tension member, which is attached to the iron plate base 7 at the tip of the optical fiber cable 11.
The tension member 21 of the cable 11 is fixed to the top, and the tension member 21 of the cable 11 is fixed to improve workability. 22 is a door.
本案は以上の如き構成で、これを使用するに当
たつては、光フアイバコード４，４をゴムプレー
ト８上に載置し、押さえ板９を更にその上に被覆
し、該押さえ板９の両側に挿嵌したビス１０，１
０で押さえ板９をゴムプレート８上に締め付け固
定するものである。斯くして光フアイバの余長処
理部５，５は接続箱の外部より、光フアイバコー
ド４の牽引等があつた場合でも、該固定作用によ
つて引き留められ、その張力等が内部の露出状の
光フアイバ処理部に及ぶことなく、該露出状の余
長処理部に該牽引等の影響がなく、該部の切断又
はマイクロベンデイング等の支障を起こすことな
きを得るもので、頗る顕著な効果を挙げるもので
ある。 The present invention has the above-mentioned structure, and when using this, the optical fiber cords 4, 4 are placed on the rubber plate 8, and the pressing plate 9 is further covered thereon. Screws 10, 1 inserted on both sides
0, the presser plate 9 is tightened and fixed onto the rubber plate 8. In this way, even if the optical fiber cord 4 is pulled from the outside of the junction box, the extra length processing parts 5, 5 of the optical fiber are held back by the fixing action, and the tension is applied to the internal exposed state. The optical fiber processing section is not affected, the exposed surplus length processing section is not affected by the traction, and there is no problem such as cutting or microbending of the section, which is extremely noticeable. It is effective.
添付図面は本案実施の一例を示すもので、第１
図は光フアイバコードの引留部の一部断面とした
拡大要部正面図、第２図は扉を省略した光フアイ
バ接続箱の正面図、第３図は一部を切欠した光フ
アイバ接続箱の側面図、第４図は光フアイバ接続
部支持部の拡大側面図である。
１……光フアイバ接続箱本体、２……側面、３
……コードロツク、４……光フアイバコード、４
ａ……心線、５……余長処理部、６……余長処理
ホルダー、７……鉄板製ベース、８……ゴムプレ
ート、９……押さえ板、１０……ビス、１１……
二心光フアイバケーブル、１２……ケーブルロツ
ク、１３……心線、１４……余長処理部、１５…
…光フアイバ接続部支持部、１５ａ……ウレタン
ゴム製板状体、１６……融着補強チユーブ、１７
……フアイバ接続部、１８……貫通孔、１９……
溝、２０……テンシヨンメンバー固定用ターミナ
ル、２１……テンシヨンメンバー、２２……扉。
The attached drawings show an example of the implementation of the present invention.
The figure is an enlarged front view of the main part with a partial cross section of the anchoring part of the optical fiber cord, Figure 2 is a front view of the optical fiber junction box with the door omitted, and Figure 3 is the front view of the optical fiber junction box with a part cut away. FIG. 4 is an enlarged side view of the optical fiber connection support section. 1... Optical fiber connection box body, 2... Side, 3
...Code lock, 4...Optical fiber cord, 4
a... Cord wire, 5... Extra length processing section, 6... Extra length processing holder, 7... Iron plate base, 8... Rubber plate, 9... Holder plate, 10... Screw, 11...
Twin-core optical fiber cable, 12... Cable lock, 13... Core wire, 14... Excess length processing section, 15...
...Optical fiber connection support part, 15a... Urethane rubber plate, 16... Fusion reinforcing tube, 17
...Fiber connection part, 18...Through hole, 19...
Groove, 20...Tension member fixing terminal, 21...Tension member, 22...Door.
Claims (1)
本体１の光フアイバコードロツク３と光フアイバ
コード４，４の露出状の余長処理部５，５との間
の側壁２の剛体製ベース７状に柔軟性ゴムプレー
ト８を貼着し、該ゴムプレート８上に光フアイバ
コード４，４を載置し、更に該光フアイバコード
の上をゴム状弾性を有する押さえ板９で被覆し、
該押さえ板９をゴムプレート８上に締め付けて固
定して引留部を別設することを特徴とする光フア
イバー接続箱における光フアイバコード固定装
置。 The rigid base 7 of the side wall 2 between the optical fiber cord lock 3 and the exposed surplus length processing portions 5, 5 of the optical fiber cord 4, 4 of the optical fiber connection box main body 1 is flexible. A flexible rubber plate 8 is attached, an optical fiber cord 4 is placed on the rubber plate 8, and the optical fiber cord is further covered with a pressing plate 9 having rubber-like elasticity.
An optical fiber cord fixing device for an optical fiber connection box, characterized in that the pressing plate 9 is tightened and fixed on the rubber plate 8, and a retaining portion is provided separately.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17890083U JPS6084906U (en) | 1983-11-18 | 1983-11-18 | Optical fiber cord retention part in optical fiber junction box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17890083U JPS6084906U (en) | 1983-11-18 | 1983-11-18 | Optical fiber cord retention part in optical fiber junction box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6084906U JPS6084906U (en) | 1985-06-12 |
| JPH0339761Y2 true JPH0339761Y2 (en) | 1991-08-21 |
Family
ID=30388285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17890083U Granted JPS6084906U (en) | 1983-11-18 | 1983-11-18 | Optical fiber cord retention part in optical fiber junction box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6084906U (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2624566B2 (en) * | 1990-09-06 | 1997-06-25 | 住友電気工業株式会社 | How to hold the optical fiber cord in the optical fiber connection box |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53132353U (en) * | 1977-03-28 | 1978-10-20 | ||
| JPH0320801Y2 (en) * | 1981-04-28 | 1991-05-07 |
-
1983
- 1983-11-18 JP JP17890083U patent/JPS6084906U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6084906U (en) | 1985-06-12 |
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