JPS6152606A - Storage structure of optical fiber core wire connecting part - Google Patents

Storage structure of optical fiber core wire connecting part

Info

Publication number
JPS6152606A
JPS6152606A JP17311684A JP17311684A JPS6152606A JP S6152606 A JPS6152606 A JP S6152606A JP 17311684 A JP17311684 A JP 17311684A JP 17311684 A JP17311684 A JP 17311684A JP S6152606 A JPS6152606 A JP S6152606A
Authority
JP
Japan
Prior art keywords
sheet
core wire
optical fiber
wire connecting
connecting part
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
Application number
JP17311684A
Other languages
Japanese (ja)
Inventor
Nobuo Tomita
信夫 富田
Masayoshi Samura
佐村 正義
Hideo Kobayashi
英夫 小林
Junichi Takagi
淳一 高木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP17311684A priority Critical patent/JPS6152606A/en
Publication of JPS6152606A publication Critical patent/JPS6152606A/en
Pending legal-status Critical Current

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Abstract

PURPOSE:To improve the storage density of a core wire connecting part of an optical fiber, and a surplus length core wire, and to maintain a good transmission characteristic by laminating a surplus processing sheet provided with a bend part by turning upward two opposed sides of a rectangular plastic sheet and bending them plural times, and a sheet of a structure whose side length is different from said sheet. CONSTITUTION:In a flat part and a bend part 10 of surplus length processing sheets 9a, 9b, a core wire connecting part 6 is placed in the vicinity of a sheet wall 12, and between upper and lower surplus length core wires 5a, 5b, a plastic 11 is inserted, and also the surplus length processing sheet 9a whose side face is short, and the surplus length processing sheet 9b whose side face is long are superposed alternately, by which the titled structue is constituted. In this way, the storage position of the core wire connecting part 6 is dispersed upward and downward, therefore, a height of the whole storage structure can be compressed by an empty weight of each surplus length processing part or a load from the upper part, and the storage density of the optical fiber core wire connecting part can be raised. Accordingly, the core wire is not pinched in the sheet, therefore, a good transmission characteristic can be maintained.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は光ケーブルの接続部における光ファイバ心線接
続部および余長心線を収容する構造に関するものである
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a structure for accommodating an optical fiber connecting portion and an extra length of the optical fiber in a connecting portion of an optical cable.

(従来の技術) 従来、この種の光7アイパ心線接続部の収容構造は、第
7図および第8図に示すように、プラスチック等の帯状
シートを一定の幅で交互に向きを変えて折り畳むことに
より構成した余長処理シート1を用い、各シート片2の
間隙に、光ケーブル8から取り出された光ファイバ心線
4の余長心線5およびその心線接続部6(例えば接続筒
等)を収容した構造であった。ここで心線接続部6は折
り畳み部7の上面に取り付けたプラスチックシート等の
小片からなる接続部受け8で固定されている。
(Prior Art) Conventionally, the accommodation structure for this type of optical 7-iper fiber connection section consists of strip-shaped sheets of plastic or the like that are alternately turned in a fixed width, as shown in FIGS. 7 and 8. Using the extra length processing sheet 1 configured by folding, insert the extra length fiber 5 of the optical fiber core 4 taken out from the optical cable 8 and its fiber connection part 6 (for example, a connection tube, etc.) into the gap between each sheet piece 2. ). Here, the core wire connection part 6 is fixed by a connection part receiver 8 made of a small piece of plastic sheet or the like attached to the upper surface of the folding part 7.

(実願昭57−174698参照) このため、多数の心線接続部6が上下方向の同じ位置に
積み重ねられることになって収納構造の全体が高くなり
、心線接続部の収納密度が小さくなる欠点があった。ま
たシートの折り畳み部7では余長心線5がシート1に挾
まれ側圧の増大により、伝送特性の劣化が生じる欠点が
あった。
(Refer to Utility Model Application No. 57-174698.) Therefore, a large number of fiber connectors 6 are stacked at the same vertical position, which increases the height of the entire storage structure and reduces the storage density of the fiber connectors. There were drawbacks. Further, in the folded portion 7 of the sheet, the excess core wire 5 is sandwiched between the sheet 1 and the lateral pressure increases, resulting in deterioration of transmission characteristics.

(発明が解決しようとする問題点) 本発明は光ファイバの心線接続部お上び余長心線の収納
密度を向上するとともに良好な伝送特性を常に維持する
ことにある。
(Problems to be Solved by the Invention) The object of the present invention is to improve the storage density of the fiber connecting portion and the extra length of the optical fiber, and to maintain good transmission characteristics at all times.

(問題点を解決するための手段) 本発明は長方形のプラスチックシートの相対する2辺を
上方に向けて複数回折り曲げて、上記2辺の全長にわた
り屈曲部を設けた構造の余長処理シートと、相対する2
辺に屈曲部がない辺の長さを前記余長処理シートと異な
らせた構造の余長処理シートを上下方向に交互に積み重
ね合わせる。以下図面により本発明の詳細な説明する。
(Means for Solving the Problems) The present invention provides an extra length processing sheet having a structure in which two opposing sides of a rectangular plastic sheet are bent upward multiple times to provide a bent portion over the entire length of the two sides. , opposite 2
Extra length treatment sheets having a structure in which the length of the side without a bent portion is different from the extra length treatment sheets are stacked alternately in the vertical direction. The present invention will be explained in detail below with reference to the drawings.

本発明の実施例を第1図および第2図に示す。An embodiment of the invention is shown in FIGS. 1 and 2.

第1図は本実施例の斜視図、第2図は側面図であり図中
、従来例と同一構成部分は同一符号をもって表わす。す
なわち3は光ケーブル、4は光ファイバ心線、5.5a
、5bは余長心線、6は心線接続部、例えば接続筒であ
る。また9aは長辺を上方向に2回折り曲げた屈曲部1
0を有する余長処理シートである。9bは9aよりも側
面が長い余長処理シートである。11は全長処理シート
内の余長心線が交錯しないように上下の余長心線5a、
5bの間に挿入したプラスチックシートである。また1
2は屈曲部の側面(シート壁)である。
FIG. 1 is a perspective view of this embodiment, and FIG. 2 is a side view. In the figures, the same components as those of the conventional example are designated by the same reference numerals. That is, 3 is an optical cable, 4 is an optical fiber core, 5.5a
, 5b is an extra length of the core wire, and 6 is a core wire connection portion, for example, a connection tube. In addition, 9a is a bent portion 1 in which the long side is bent twice upward.
This is a surplus length processing sheet having a length of 0. Reference numeral 9b is an extra length processing sheet whose side surfaces are longer than those of 9a. 11 are upper and lower extra length core lines 5a, so that the extra length core lines in the full length processing sheet do not intersect;
This is a plastic sheet inserted between 5b. Also 1
2 is a side surface (sheet wall) of the bent portion.

本実施例では各余長処理シーh9a、9bの平坦部およ
び屈曲部lOの中に、シート壁12に近接して心線接続
部6を配置し、上下の余長心線5a。
In this embodiment, the fiber connecting portions 6 are disposed close to the sheet wall 12 in the flat portions and bent portions lO of each of the extra length treatment seams h9a, 9b, and the upper and lower extra length core wires 5a are arranged close to the sheet wall 12.

5bの間にプラスチックシート11を挿入し、さらに側
面の短い余長処理シー)9a、側面の長い余長処理シー
)9bを上下方向に交互に重ね合わせた構成としている
。このように心線接続部6の収納位置が上下に分散され
ているので、各余長処理部の自重または上方からの荷重
により収納fi’j 造全体の高さを圧縮でき、光ファ
イバ心線接続部の収納密度を上げることができる。
A plastic sheet 11 is inserted between the sheets 5b, and a sheet 9a with a short extra length on the side surface and an extra length sheet 9b with a long side surface are vertically stacked alternately. In this way, since the storage positions of the optical fiber connection parts 6 are distributed vertically, the height of the entire storage structure can be compressed by the weight of each extra length processing part or the load from above. It is possible to increase the storage density of connection parts.

また第7図、第8図で示した従来例のように、心線をシ
ートで挾み込むことがないので、良好な伝送特性を維持
できる。
Further, unlike the conventional examples shown in FIGS. 7 and 8, the core wires are not sandwiched between sheets, so that good transmission characteristics can be maintained.

なお本実施例では、側面の長さの異なる2種類の余長処
理部を上下方向に交互に重ね合わせたが、側面長の異な
る8種類以上の余長処理部を側面長の長いものから履序
よく重ね合わせて1ユニツトを構成し、本ユニットを重
ね合わせても本実施例と同様な効果を有する光ファイバ
心線接続部の収納構造を実現できる。
In this example, two types of extra length processing parts with different side lengths are stacked alternately in the vertical direction, but more than eight types of extra length processing parts with different side lengths are stacked in descending order of side length. Even if these units are piled up in an orderly manner to form one unit, it is possible to realize a storage structure for the optical fiber connection portion having the same effect as in this embodiment.

また本発明は、第1図、第2図で示した実施例の光ファ
イバ心線4はテープ形または丸形構造の高密度収容光フ
ァイバ心線であっても適用できる6次に、本発明の収納
構造に上方から荷重等をかけた場合の圧縮効果を考察す
る。余長処理シート9a、9bおよびプラスチックシー
)11の厚さをt、光ファイバ心、I!4の直径をd、
心線接続部6の高さをDとすると、荷重等により側面の
短い余長処理シー)9aが側面の長い余長処理シート9
bにシー)9bが余長心@5に接触することなしに沈み
込む量の最大許容値hmaxは、沈み込みの状態を示し
た第3図より次式で表わされる。
Further, the present invention can be applied even if the optical fiber coated wire 4 of the embodiment shown in FIGS. We will consider the compression effect when a load is applied from above to the storage structure. The thickness of the extra length processing sheets 9a, 9b and plastic sheet 11 is t, the optical fiber core is I! The diameter of 4 is d,
If the height of the core wire connection part 6 is D, then the extra length sheet 9a with short sides due to load etc. is the extra length sheet 9 with long sides.
The maximum permissible value hmax of the amount by which 9b sinks without contacting the extra length center @5 is expressed by the following equation based on FIG. 3, which shows the sinking state.

D(1) hmaX ” T −d 従って、圧縮率(沈み込み有状態と無状態の収納構造の
高さの比)の最大値PInaxは次式で表わされる。
D(1) hmaX '' T −d Therefore, the maximum value PInax of the compression ratio (ratio of the heights of the storage structure with and without sinking) is expressed by the following equation.

”maX(%) = 100(D−14t−hTnax
) / (D+2t)= 100(p+gt+d) /
 CD+2t) (2)式(2)を用いて、光ファイバ
心線径および心線接続部の高さとPmaxとの関係をシ
ミュレーションした結果を第4図に示す。第4図より、
心線接続部の高さDが大きく、光ファイバ心線径dの小
さい場合が圧縮の効果が大きいことがわかる。例えば心
線として5心一括テープ形高密度心IIA(d中1.5
簡に相当)、および高密度心線用平板用の心線接続部(
D中7熊に相当)を用いた場合、第4図よりPmaxは
約78%となり、心線収容スペースを約27%減小する
ことができる。
"max (%) = 100 (D-14t-hTnax
) / (D+2t)=100(p+gt+d)/
CD+2t) (2) FIG. 4 shows the results of simulating the relationship between the optical fiber diameter, the height of the fiber connection portion, and Pmax using equation (2). From Figure 4,
It can be seen that the compression effect is large when the height D of the fiber connection portion is large and the optical fiber core diameter d is small. For example, as a core wire, 5-core tape-type high-density core IIA (1.5 in d)
), and the fiber connection part for the flat plate for high-density fibers (
When using a cable (equivalent to 7 bears in D), Pmax is approximately 78% as shown in FIG. 4, and the space for accommodating the core wire can be reduced by approximately 27%.

次に本発明の効果を実装実験により検証した結果を述べ
る。
Next, the results of verifying the effects of the present invention through implementation experiments will be described.

・ 第5図に実験に用いた心線処理構造を示す。・Figure 5 shows the core processing structure used in the experiment.

(A)は従来の折り畳みシートを用いた構造図、(B)
は幅の等しいボックス状シートを用いた構造図、(C)
は本発明の構造図である。これらの心線処理部に上方か
ら垂直に荷重を加え、その実装高を測定した結果を第6
図に示す。実装条件は次の通りである。
(A) is a structural diagram using a conventional folding sheet, (B)
(C) is a structural diagram using box-like sheets of equal width.
is a structural diagram of the present invention. A load was applied vertically to these core processing sections from above, and the mounting height was measured.
As shown in the figure. The implementation conditions are as follows.

光ファイバテープユニット(5心一括収容)心線接続部
の高さ 4−1幅3.5sax、長さ50Mシート 幅
276順、奥行(A)、(B)の場合は140闘、(G
)+7)場合は140sssのものと100間のものを
交互にした。
Optical fiber tape unit (accommodating 5 fibers at once) Height of fiber connection part 4-1 width 3.5sax, length 50M sheet Width 276 order, depth (A), (B) 140 mm, (G
)+7), we alternated between 140sss and 100.

心線処理曲率半径 4o闘 1段当り4テーブユ゛ニツト処理く全40段)第6図か
ら本発明の心線収納構造は、従来の構造または、幅の等
しいボックス状シートを用いた構造に比べて同心荷重で
15%〜20%程度高さ方向が圧縮でき、単位体積当り
心線の高密度実装ができることがわかる。
Wire processing radius of curvature: 4 table units per stage (total 40 stages) As shown in Fig. 6, the fiber storage structure of the present invention is superior to conventional structures or structures using box-like sheets of equal width. It can be seen that the height direction can be compressed by about 15% to 20% under a concentric load, and that high-density packaging of core wires per unit volume can be achieved.

(発明の効果) 以上説明したように、本発明は、長方形のプラスチック
シートの相対する2辺を上方に向けて複数回折り曲げ、
前記2辺の全長にわたり屈曲部を、設けた構造の余長処
理シートと、相対する2辺に  ゛屈曲部がない辺の長
さを前記余長処理シートと異ならせた構造の余長処理シ
ートとを上下方向に交互に積み重ね合わせたことを特徴
としており、心線接続部を同一位置に重ねることなく分
散できるので、各余長処理部の自重または上方からの荷
重により、収納構造全体の高さを圧縮できる。従って、
光ファイバ心線接続部の収容密度を向上できる利点があ
る。例えば、5心一括テープ形高密度心線の接続部を収
納する場合、収容スペースを27%減小できる。また光
ファイバ心線をシー) ffJで挾み込むことがないの
で、良好な伝送特性を維持できる利点がある。
(Effects of the Invention) As explained above, the present invention has the advantage of folding a rectangular plastic sheet multiple times with two opposing sides facing upward.
An extra length processing sheet having a structure in which bent portions are provided over the entire length of the two sides, and an extra length processing sheet having a structure in which the opposite two sides have different lengths of sides without bent portions from the extra length processing sheet. It is characterized by stacking the wires vertically alternately, and the fiber connection parts can be distributed without stacking them in the same position, so the height of the entire storage structure is reduced due to the weight of each excess length processing part or the load from above. can be compressed. Therefore,
This has the advantage that the accommodation density of the optical fiber connection portion can be improved. For example, when accommodating the connecting portion of 5-fiber tape-type high-density core wires, the accommodating space can be reduced by 27%. In addition, since the optical fiber is not pinched by the sea) ffJ, there is an advantage that good transmission characteristics can be maintained.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例の斜視図、第2図は第1図の
実施例の側面図、第3図は本発明における心線接続部の
高密度収容効果を求めるための収 l納構造の寸法を示
す図、第4図は第8図の構造の高密度収容効果を示すグ
ラフ、第5図(A)は従来の折り畳みシートの構造を示
す針視図、第5図(B)は幅の等しいボックスシートの
構造を示す斜視図、第5図(0)は本発明の構造を示す
針視図、第6図は第5図の実装実験の結果を示す図、第
7図は従来の光ファイバ心線接続部の収納構造を示す斜
視図、第8図は第7図の収納構造の部“分明面図である
。 1・r 9 a H9b・・・余長処理シート、2・・
・シート片、3・・・光ケーブル、4・・・光ファイバ
心線、S 、 Sa。 5b・・・余長心線、6・・・心線接続部、7・・・折
り畳み部、8・・・接続部受け、lO・・・屈曲部、1
1・・・プラスチックシート、1z・・・屈曲部の側面
(シート壁ル第5図 (A>     (B)     (C)第6図
FIG. 1 is a perspective view of an embodiment of the present invention, FIG. 2 is a side view of the embodiment of FIG. 1, and FIG. FIG. 4 is a graph showing the high-density storage effect of the structure of FIG. 8, FIG. 5 (A) is a needle perspective view showing the structure of a conventional folding sheet, and FIG. ) is a perspective view showing the structure of a box sheet with equal width, FIG. 5 (0) is a needle perspective view showing the structure of the present invention, FIG. is a perspective view showing a storage structure for a conventional optical fiber connector, and FIG. 8 is an exploded side view of the storage structure shown in FIG. 7. 2...
- Sheet piece, 3... Optical cable, 4... Optical fiber core wire, S, Sa. 5b... Extra length core wire, 6... Core wire connection part, 7... Folding part, 8... Connection part receiver, lO... Bent part, 1
1...Plastic sheet, 1z...Side surface of bent part (sheet wall Figure 5 (A> (B) (C) Figure 6)

Claims (1)

【特許請求の範囲】[Claims] 1、長方形のプラスチックシートの相対する2辺を上方
に向けて複数回折り曲げて、上記2辺の全長にわたり屈
曲部を設け他の2辺には屈曲部を設けない構造の余長処
理シートと、該余長処理シートと同一の構造で屈曲部が
ない辺の長さを前記余長処理シートと異ならせた構造の
余長処理シートとを、上下方向に交互に積み重ね合わせ
たことを特徴とする光ファイバ心線接続部の収納構造。
1. An extra length processing sheet having a structure in which two opposing sides of a rectangular plastic sheet are folded upward multiple times to provide a bent portion over the entire length of the two sides and no bent portions on the other two sides; Extra length processing sheets having the same structure as the extra length processing sheet but having a different length of the side without a bent portion from the extra length processing sheet are stacked alternately in the vertical direction. Storage structure for optical fiber connections.
JP17311684A 1984-08-22 1984-08-22 Storage structure of optical fiber core wire connecting part Pending JPS6152606A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17311684A JPS6152606A (en) 1984-08-22 1984-08-22 Storage structure of optical fiber core wire connecting part

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17311684A JPS6152606A (en) 1984-08-22 1984-08-22 Storage structure of optical fiber core wire connecting part

Publications (1)

Publication Number Publication Date
JPS6152606A true JPS6152606A (en) 1986-03-15

Family

ID=15954438

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17311684A Pending JPS6152606A (en) 1984-08-22 1984-08-22 Storage structure of optical fiber core wire connecting part

Country Status (1)

Country Link
JP (1) JPS6152606A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0571803U (en) * 1992-02-27 1993-09-28 株式会社フジクラ Optical fiber tape storage sheet
US5479553A (en) * 1993-04-19 1995-12-26 Raychem Corporation Fiber optic splice closure

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0571803U (en) * 1992-02-27 1993-09-28 株式会社フジクラ Optical fiber tape storage sheet
US5479553A (en) * 1993-04-19 1995-12-26 Raychem Corporation Fiber optic splice closure
US5692299A (en) * 1993-04-19 1997-12-02 Raychem Corporation Fiber optic splice closure and associated methods

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