JPH0326363B2 - - Google Patents
Info
- Publication number
- JPH0326363B2 JPH0326363B2 JP56094294A JP9429481A JPH0326363B2 JP H0326363 B2 JPH0326363 B2 JP H0326363B2 JP 56094294 A JP56094294 A JP 56094294A JP 9429481 A JP9429481 A JP 9429481A JP H0326363 B2 JPH0326363 B2 JP H0326363B2
- Authority
- JP
- Japan
- Prior art keywords
- opposing
- fiber
- support plates
- opposing support
- length
- 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 - Lifetime
Links
- 239000000835 fiber Substances 0.000 claims description 27
- 239000013307 optical fiber Substances 0.000 claims description 24
- 230000002787 reinforcement Effects 0.000 description 4
- 239000004698 Polyethylene Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
- Light Guides In General And Applications Therefor (AREA)
Description
【発明の詳細な説明】
本発明は光フアイバの接続余長収納装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an optical fiber connection excess length storage device.
従来の光フアイバ海底ケーブルの光フアイバの
持続余長を収納するには第１図に示す如く、光フ
アイバケーブルＡ，Ｂの光フアイバ１，１′をそ
れぞれ接続補強部２に於いて接続補強してこれを
接続補強部収納部３に収納した後、フアイバ接続
余長４，４′をそれぞれ接続余長収納部５，５′に
巻回し、さらにフアイバ余裕６，６′をそれぞれ
その収納部７，７′に収納しているので余長収納
部７，７′の長さはフアイバの許容曲率Ｒの２倍
以上が必要であるから、フアイバーケーブルの収
納部全体の長さがこれら収納部全部を加算せるも
のになつて必然的に長くなり、現状では約500mm
にもなる。その上、従来の光フアイバの接続余長
収納装置では光フアイバの曲げ径を正確に規定で
きない。 In order to accommodate the remaining length of the optical fibers in conventional optical fiber submarine cables, the optical fibers 1 and 1' of optical fiber cables A and B are connected and reinforced at connection reinforcement sections 2, respectively, as shown in Fig. 1. After storing it in the connection reinforcing section storage section 3, the fiber connection excess lengths 4 and 4' are wound around the connection excess length storage sections 5 and 5', respectively, and the fiber connection excess lengths 6 and 6' are respectively wound in the connection reinforcement section storage section 7. , 7', the length of the extra length storage parts 7, 7' must be at least twice the allowable curvature R of the fiber, so the total length of the fiber cable storage parts is equal to the total length of these storage parts. As it becomes possible to add the
It also becomes. Furthermore, the conventional optical fiber connection surplus length storage device cannot accurately define the bending diameter of the optical fiber.
本発明は上記の欠点を解決する目的にて一端に
光フアイバ曲率規定用溝付円弧を有し、他端に於
いて可変距離を隔てて対向する２枚の板にてフア
イバ接続部を支持すると共に、前記接続部のフア
イバ接続余長を前記２枚の対向支持板の周囲に巻
回し、前記対向支持板間の距離を調節して前記余
長を前記対向支持板の全周に密接定着せしむるよ
うにした光フアイバ接続余長収納装置を提提供す
るものである。 In order to solve the above-mentioned drawbacks, the present invention has a grooved arc for defining the curvature of the optical fiber at one end, and supports the fiber connection part at the other end with two plates facing each other with a variable distance apart. At the same time, the fiber connection extra length of the connecting portion is wound around the two opposing support plates, and the distance between the opposing support plates is adjusted to tightly fix the extra length around the entire circumference of the opposing support plates. The present invention provides an optical fiber connection surplus length storage device that is designed to be compressed.
これを図面により詳細に説明するに、第２図
イ，ロはその正面図、第３図はその側面図、第４
図はその平面図であつて、第１図と同一符号は同
一部分を示し、８，８′は可変距離を隔てて対向
する２枚のフアイバ接続補強部２の対向支持板で
あつてアルミニウム又はポリエチレン等を成形加
工して作る。９，９′は対向支持板８，８′の一方
の端部に形成されているフアイバ曲率規定用溝付
円弧端、１０，１０′は同じくその対向端、は
対向端１０，１０′間の可変距離、１１，１２，
１１′１２′は前記対向支持板８，８′の中心軸上
に並列せる締付用の固定桿、１３，１３′は前記
対向支持板８，８′にその中心軸に沿つて設けた
切欠部であつて、これにより対向支持板８，８′
は前記固定桿１１，１２，１１′，１２′に嵌合し
て内方又は外方に自由に移動することによりその
全長Ｌを最低L1と最高L2との間で伸縮すること
ができる。従つて、第２図で示すようにケーブル
Ａ，Ｂから引き出された光フアイバ１，１′を接
続したのち光フアイバ接続部の余長を１対の対向
支持板８，８′の周囲に巻回して余長にたるみ１
４，１４′が存在する時は１対の対向支持板８，
８′の間〓が大きくなるように両者を外方に移
動してフアイバ余長４が全部前記の１対の対向支
持板８，８′のフアイバ曲径規定用溝付円弧９，
９′を含む全周に密接定着するようにする。そし
て、接続すべき光フアイバ１，１′が複数本の場
合はこのような余長処理を複数の対向支持板を
８，８′毎に施して光フアイバのたるみを除去し、
そのあと固定桿１１，１２，１１′，１２′の端部
に螺子を切つてナツト１１ａ，１２ａ（１１a′，
１２a′）によつて全数枚の対向支持板を一括して
締付けて固定する
第３図は対向支持板８の側面図であつて１５は
対向支持板８の周囲に設けた浅いフアイバ収納溝
であつてこれにより巻回されたフアイバがはみ出
さないようにしている。 To explain this in detail with reference to the drawings, Figure 2 A and B are the front view, Figure 3 is the side view, and Figure 4 is the front view.
The figure is a plan view of the same, and the same reference numerals as in FIG. Made by molding polyethylene, etc. Reference numerals 9 and 9' denote grooved circular arc ends for defining the fiber curvature formed at one end of the opposing support plates 8 and 8'; 10 and 10' are also opposing ends thereof; variable distance, 11, 12,
Reference numerals 11' and 12' denote fixing rods for tightening arranged in parallel on the central axes of the opposing support plates 8 and 8', and 13 and 13' indicate notches provided in the opposing support plates 8 and 8' along their central axes. This allows the opposing support plates 8, 8'
can be fitted into the fixed rods 11, 12, 11', 12' and moved freely inward or outward, thereby expanding and contracting its total length L between the minimum L1 and the maximum L2 . . Therefore, as shown in FIG. 2, after connecting the optical fibers 1 and 1' drawn out from the cables A and B, the remaining length of the optical fiber connection part is wound around the pair of opposing support plates 8 and 8'. Turn it and slack to the extra length 1
4, 14', a pair of opposing support plates 8,
8' is moved outward so that the fiber extra length 4 becomes larger, and the grooved circular arc 9 for defining the fiber radius of the pair of opposing support plates 8, 8' is removed.
Make sure that it is tightly fixed around the entire circumference including 9'. When there are a plurality of optical fibers 1, 1' to be connected, such extra length treatment is applied to each of the plurality of opposing support plates 8, 8' to remove slack in the optical fibers.
After that, cut screws into the ends of the fixed rods 11, 12, 11', 12' and tighten the nuts 11a, 12a (11a', 11a', 12').
12a'), tighten and fix all the opposing support plates at once. Figure 3 is a side view of the opposing support plate 8, and 15 is a shallow fiber storage groove provided around the opposing support plate 8. This prevents the wound fiber from protruding.
第４図は複数の対向支持板８，８′を中心線か
ら切断した断面の平面図であつて２枚の対向支持
板８，８′より成る１対の支持板が複数組固定桿
１１，１２，１１′，１２′により締付け固定され
ているのを示す。なお接続するフアイバの接続部
余長の長さは必ずしも一定でないからこれを収納
する対向支持板８，８′間の対向距離1，2，
3……ｋは一定でない。従つて各組の対向支
持板８，８′の一方に端に形成されている曲率規
定用溝付円弧９，９′から成る側面に凹凸を生ず
る。 FIG. 4 is a plan view of a cross section of a plurality of opposing support plates 8, 8' cut from the center line. 12, 11', and 12' are shown being tightened and fixed. Note that since the length of the extra length of the connecting portion of the fibers to be connected is not necessarily constant, the opposing distances 1 , 2 ,
3 ...k is not constant. Therefore, unevenness is formed on the side surface formed by the curvature-defining grooved circular arcs 9, 9' formed at one end of each pair of opposing support plates 8, 8'.
本発明のフアイバ接続部余長収納装置は上述し
たように一端に光フアイバ曲率規定用の溝付円弧
を有し他端に於いて可変距離を隔てて対向する１
対の支持板の外周に形成されている溝にてフアイ
バ接続部を支持すると共に前記接続部のフアイバ
接続余長を前記対向支持板の周囲に巻回し、前記
対向支持板間の対向距離を調節して前記余長を前
記対向支持板の全周に密接定着させるようにした
ものであるから光フアイバの接続作業が容易であ
り、フアイバをたるみなく収納出来ると共にフア
イバに加わる曲率を一定以上にすることが容易に
できる。又光フアイバの余長は対向支持板の周辺
の溝に２・３回巻回することができるので接続部
余長の収納部の長さを従来のものより短くするこ
とができケーブルの接続凾が小型になるという効
果がある。 As described above, the fiber connecting portion surplus length storage device of the present invention has a grooved circular arc for defining the optical fiber curvature at one end, and a grooved arc for defining the optical fiber curvature at the other end.
The fiber connection portion is supported in the groove formed on the outer periphery of the pair of support plates, and the fiber connection extra length of the connection portion is wound around the opposing support plate to adjust the facing distance between the opposing support plates. Since the extra length is closely fixed to the entire circumference of the opposing support plate, the optical fiber connection work is easy, the fiber can be stored without sagging, and the curvature applied to the fiber is kept above a certain level. It's easy to do. In addition, the extra length of the optical fiber can be wound two or three times in the groove around the opposing support plate, so the length of the storage section for the extra length of the connection part can be made shorter than that of conventional ones, making it easier to connect the cable. This has the effect of making it smaller.
又、各対向支持板は同一形状とされているた
め、製造コストが安価になり、かつ接続すべき光
フアイバの本数に応じて、その積層枚数を任意に
設定することができるので、余長収納装置の規模
を接続本数によつて縮少、又は拡大することが簡
単にできるという利点がある。 In addition, since each opposing support plate has the same shape, manufacturing costs are reduced, and the number of stacked plates can be set arbitrarily depending on the number of optical fibers to be connected, so excess length can be stored. There is an advantage that the scale of the device can be easily reduced or expanded by changing the number of connections.
さらに、対向支持板によつて余長処理された光
フアイバ余長部分は、相互に交乂することがない
ため、光フアイバの側圧を上昇して伝送損失を劣
化させるような原因をとり除くことができるよう
になる。 Furthermore, since the extra length of the optical fibers processed by the opposing support plate does not cross each other, it is possible to eliminate the cause of increasing the lateral pressure of the optical fibers and deteriorating the transmission loss. become able to.
第１図は従来のフアイバの接続部余長の収納装
置の正面図、第２図イ，ロは本発明のフアイバの
接続部余長の収納装置の作動状態を示す正面図、
第３図は同じく側面図、第４図は同じく一部を切
断した平面図である。
Ａ，Ｂは光フアイバケーブル、１，１′はその
光フアイバ（以下単にフアイバという）、２はフ
アイバ接続補強部、３は続補強部収納部、４，
４′はそれぞれフアイバ接続余長、５，５′は接続
余長収納部、６，６′はフアイバ余裕、８，８′は
２枚の対向支持板、は対向板間の間〓、９，
９′はフアイバ曲率規定用溝付円弧、１０，１
０′は対向端、１１，１２，１１′，１２′は固定
桿、１３，１３′は対向支持板８，８′の切欠部、
１４はフアイバのたるみ、１５は対向支持板周囲
のフアイバ収納溝。
FIG. 1 is a front view of a conventional storage device for excess fiber connection length, and FIGS. 2A and 2B are front views showing the operating state of the fiber connection excess length storage device of the present invention.
FIG. 3 is a side view, and FIG. 4 is a partially cutaway plan view. A and B are optical fiber cables, 1 and 1' are the optical fibers thereof (hereinafter simply referred to as fibers), 2 is a fiber connection reinforcement section, 3 is a connection reinforcement section storage section, 4,
4' is the fiber connection extra length, 5, 5' is the connection extra length storage area, 6, 6' is the fiber allowance, 8, 8' is the two opposing support plates, and is the space between the opposing plates, 9,
9' is a grooved arc for defining fiber curvature, 10,1
0' is the opposing end, 11, 12, 11', 12' are the fixed rods, 13, 13' are the notches of the opposing support plates 8, 8',
14 is a slack fiber, and 15 is a fiber storage groove around the opposing support plate.
Claims (1)
することができる曲率規定用溝付円弧９，９′を
形成し、他方の対向端１０，１０′に中心に向か
つて切り欠かれている切欠部１３，１３′を形成
した対向支持板８，８′を前記対向端１０，１
０′が対向するように複数枚積層すると共に、前
記積層された複数枚の対向持板８，８′の切欠部
１３，１３′を貫通するネジ付の複数本の固定杆
１１，１１′１２，１２′を設け、前記各対向持板
８，８′の周辺の溝に接続された光フアイバの接
続余長が密接するように前記対向端１０，１０′
の対向間〓１をそれぞれ調整したのち、前記固定
杆１１，１１′，１２，１２′によつて前記積層さ
れた対向支持板８，８′が固定されるようにした
ことを特徴とする光フアイバ接続余長収納装置。1 One end is formed with a curvature-defining grooved circular arc 9, 9' capable of accommodating an optical fiber with a predetermined curvature, and the other opposing end 10, 10' is notched toward the center. The opposing support plates 8, 8' having the notches 13, 13' formed therein are attached to the opposing ends 10, 1.
A plurality of fixing rods 11, 11'12 with screws are stacked so that 0' face each other, and pass through the cutouts 13, 13' of the stacked opposing support plates 8, 8'. , 12' are provided, and the opposing ends 10, 10' are arranged so that the remaining connection lengths of the optical fibers connected to the grooves around the respective opposing holding plates 8, 8' come into close contact with each other.
The stacked opposing supporting plates 8, 8' are fixed by the fixing rods 11, 11', 12, 12' after adjusting the opposing distances 1, respectively. Fiber connection extra length storage device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56094294A JPS5816212A (en) | 1981-06-18 | 1981-06-18 | Storage device for excessive connected optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56094294A JPS5816212A (en) | 1981-06-18 | 1981-06-18 | Storage device for excessive connected optical fiber |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5816212A JPS5816212A (en) | 1983-01-29 |
| JPH0326363B2 true JPH0326363B2 (en) | 1991-04-10 |
Family
ID=14106241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56094294A Granted JPS5816212A (en) | 1981-06-18 | 1981-06-18 | Storage device for excessive connected optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5816212A (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59121618U (en) * | 1983-02-02 | 1984-08-16 | 古河電気工業株式会社 | Optical fiber excess length storage device |
| FR2586826B1 (en) * | 1985-09-05 | 1987-10-30 | Radiall Ind | CONNECTION DEVICE BETWEEN TWO OPTICAL CONNECTORS AND OPTICAL CABLES LIKELY TO BE USED IN SUCH A DEVICE. |
| FR2589589B1 (en) * | 1985-10-31 | 1987-12-24 | Radiall Ind | CONNECTION DEVICE BETWEEN TWO OPTICAL CONNECTORS |
| JPH05142426A (en) * | 1991-11-26 | 1993-06-11 | Mitsubishi Electric Corp | Treating device for surplus length of optical fiber |
| JP5041418B2 (en) * | 2007-12-27 | 2012-10-03 | 株式会社ビスキャス | Winding type optical fiber cable storage member |
-
1981
- 1981-06-18 JP JP56094294A patent/JPS5816212A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5816212A (en) | 1983-01-29 |
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