JP3833638B2 - Optical connection box - Google Patents

Optical connection box Download PDF

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JP3833638B2
JP3833638B2 JP2003287900A JP2003287900A JP3833638B2 JP 3833638 B2 JP3833638 B2 JP 3833638B2 JP 2003287900 A JP2003287900 A JP 2003287900A JP 2003287900 A JP2003287900 A JP 2003287900A JP 3833638 B2 JP3833638 B2 JP 3833638B2
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optical
cord
movable tray
storage rack
entrance
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栄輔 沖
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Japan Communication Accesories Manufacturing Co Ltd
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Description

本発明は、収納ラック本体に複数の引き出し可能な可動式トレイを備えると共に、各可動式トレイに光コードが接続される融着ユニットやコネクタモジュール等の光通信用機器が設置される光接続箱に関する。   The present invention provides an optical connection box in which a plurality of pullable movable trays are provided in a storage rack body and optical communication devices such as a fusion unit and a connector module are connected to each movable tray. About.

光通信の基地局等において、例えば、加入者に接続される外部光ケーブルと局内の光通信用機器との接続構造として、ＥＩＡ規格、ＪＩＳ規格等に準拠して取り付け穴等が装備された収納ラック本体に、該ラック本体の前面側に引き出し可能な複数の可動式トレイを備え、各可動式トレイに光コードが接続される融着ユニットやコネクタモジュール等の光通信用機器を設置した光接続箱が提案されている。   In a base station for optical communication, for example, as a connection structure between an external optical cable connected to a subscriber and an optical communication device in the station, a storage rack equipped with mounting holes in accordance with EIA standard, JIS standard, etc. An optical junction box having a plurality of movable trays that can be pulled out on the front side of the rack body, and optical communication equipment such as a fusion unit and a connector module to which an optical cord is connected to each movable tray. Has been proposed.

従来のこの種の光接続箱は、外部から収納ラック本体内に引き込む光ケーブルの導出入口を収納ラック本体の背面寄り位置に設定する一方、各可動式トレイ上に導出入される光コードの出入り口を収納ラック本体の前面寄りの側面部に設定し、光通信用機器を各可動式トレイのスライド前後方向の中間部に設置したものが多い。   In this type of conventional optical junction box, the lead-out entrance of the optical cable drawn into the storage rack main body from the outside is set at a position near the back of the storage rack main body, while the entrance / exit of the optical cord led out on each movable tray is provided. In many cases, the optical communication device is set in the middle part of each movable tray in the front-rear direction of the storage rack, set on the side surface near the front surface of the storage rack body.

しかし、このような構造では、例えば可動式トレイ上に導入する外部からの光ケーブルの余長収容スペースを可動式トレイの後部側に確保する一方、光通信用機器を経由して可動式トレイ上に導出入される光コードの余長収容スペースを可動式トレイの前部側に確保しなければならず、光通信用機器を挟んで可動式トレイの前後の領域に余長収容スペースを確保しなければならない関係で、可動式トレイの奥行き寸法の増大、しいては収納ラック本体の奥行き寸法の増大等を招き、光接続箱が大型化するという問題があった。   However, in such a structure, for example, an extra length storage space for an optical cable introduced from the outside to the movable tray is secured on the rear side of the movable tray, and on the movable tray via an optical communication device. The extra length accommodation space for the optical cord to be led out must be secured on the front side of the movable tray, and the extra length accommodation space must be secured in the area before and after the movable tray across the optical communication device. Because of this, there is a problem in that the depth of the movable tray is increased, the depth of the storage rack is increased, and the optical junction box is enlarged.

そこで、図８に示すように、矢印（イ）に示すように収納ラック本体１の前面側に引き出し可能な可動式トレイ３には、引き出し方向に直交する幅方向の略中央部に光コードや光ケーブルを接続する光通信用機器５を設置すると共に、光通信用機器５の両側部に配線用エリア７，８を確保する。そして、光通信用機器５に接続される複数本の光コードや光ケーブルは、可動式トレイ３の引き出し操作を可能にするケーブル余長部を、可撓性のケーブルガイド１１に挿通することで１本のケーブル束に仕上げた状態にして、左右の配線用エリア７，８に配置する構造が提案されている（例えば、特許文献１参照）。   Therefore, as shown in FIG. 8, the movable tray 3 that can be pulled out to the front side of the storage rack body 1 as shown by an arrow (A) has an optical cord or the like at a substantially central portion in the width direction orthogonal to the pulling direction. An optical communication device 5 for connecting an optical cable is installed, and wiring areas 7 and 8 are secured on both sides of the optical communication device 5. A plurality of optical cords and optical cables connected to the optical communication device 5 are inserted into the flexible cable guide 11 by inserting a cable surplus portion that allows the movable tray 3 to be pulled out. There has been proposed a structure in which the cable bundle is finished and arranged in the left and right wiring areas 7 and 8 (see, for example, Patent Document 1).

特開２０００−２３２２７３号公報JP 2000-232273 A

なお、図示例の場合、光通信用機器５は、複数本の光コード１３，１４相互を光コネクタで接続するコネクタモジュールである。
また、図中の右側の配線用エリア７を通って光通信用機器５に接続される各光コード１３は出線用の光コードで、図中の左側の配線用エリア７を通って光通信用機器５に接続される各光コード１４は入線用の光コードである。 In the illustrated example, the optical communication device 5 is a connector module that connects a plurality of optical cords 13 and 14 with an optical connector.
Each optical cord 13 connected to the optical communication device 5 through the wiring area 7 on the right side in the figure is an optical cable for outgoing line, and optical communication is performed through the wiring area 7 on the left side in the figure. Each optical cord 14 connected to the service device 5 is an incoming optical cord.

上記公報による構成の場合、収納ラック本体１上の光コードの出入り口１７，１８は、何れも、収納ラック本体１の側面の中間部に設定されている。
また、光通信用機器５の各光コネクタから光コードの出入り口１７，１８までの離間距離が各光コネクタ毎に相異するため、光コネクタ毎に接続する光コード１３，１４の長さを変更している。そして、各光コード１３，１４の余長は、各配線用エリア７，８に装備した余長ホルダー１５に巻き着けることで吸収して、光コード相互の交差や絡み合いが防止されている。 In the case of the configuration according to the above publication, the optical cord doors 17 and 18 on the storage rack body 1 are both set at the middle part of the side surface of the storage rack body 1.
Further, since the distances from the optical connectors of the optical communication device 5 to the optical cord entrances 17 and 18 are different for each optical connector, the lengths of the optical cords 13 and 14 connected to each optical connector are changed. is doing. The surplus lengths of the optical cords 13 and 14 are absorbed by being wound around the surplus length holders 15 provided in the wiring areas 7 and 8, and the crossing and entanglement of the optical cords are prevented.

以上のように、可動式トレイ３の左右に配線用エリア７，８を設けた構成は、入線用及び出線用の配線用エリアを可動式トレイの前後領域に分けて個別に装備した従来構造と比較すると、可動式トレイや収納ラック本体の奥行き寸法を短縮することができ、その分、光接続箱の小型化が可能になる。   As described above, the configuration in which the wiring areas 7 and 8 are provided on the left and right sides of the movable tray 3 has a conventional structure in which the wiring areas for incoming and outgoing lines are separately provided in the front and rear areas of the movable tray. As compared with, the depth dimension of the movable tray and the storage rack body can be shortened, and the optical connection box can be miniaturized accordingly.

ところが、光コードの余長をケーブルガイド１１に収容する構成では、ケーブルガイド１１自体が嵩張って、配線用エリアを圧迫するという問題があり、更に、ケーブルガイド１１の曲げ剛性の分だけコード束の曲げ剛性が増大して、可動式トレイ３の出し入れに大きな操作力が必要となる虞もあった。
また、既設された光コード群の中から一部の光コードを交換するような場合、ケーブルガイド１１を取り外す分解作業の手間が必要となるため、光コードの交換等の保守性が悪いという問題があった。 However, in the configuration in which the extra length of the optical cord is accommodated in the cable guide 11, there is a problem that the cable guide 11 itself is bulky and compresses the wiring area, and further, the cord bundle corresponding to the bending rigidity of the cable guide 11. As a result, the bending rigidity of the movable tray 3 may increase, and a large operating force may be required to move the movable tray 3 in and out.
Further, when a part of the existing optical cords is to be exchanged, it is necessary to disassemble the cable guide 11, so that the maintainability such as the exchange of the optical cord is poor. was there.

また、コード束を構成する各光コード１３，１４の長さは、光通信用機器５上の接続位置に応じて相異するため、光コネクタへの接続を切り換える際には、場所によって光コードの長さが合わない場合があり、その点からも、作業性が悪いという問題があった。
更に、外部から収納ラック本体に引き込む光ケーブルの導出入口が、従前装置と同様、収納ラック本体１の背面側に設定されていたため、収納ラック本体１の背面側にも作業スペースが必要とされて設置面積の増大と、収納ラック本体１の前後面からの据付作業等が求められて作業性に劣った。 Further, since the lengths of the optical cords 13 and 14 constituting the cord bundle are different according to the connection position on the optical communication device 5, when switching the connection to the optical connector, the optical cords are changed depending on the location. In some cases, the lengths of the two do not match. From this point, there is a problem that workability is poor.
Further, since the lead-out entrance of the optical cable drawn into the storage rack body from the outside is set on the back side of the storage rack body 1 as in the conventional device, a work space is also required on the back side of the storage rack body 1 and installed. The workability was inferior because an increase in area and installation work from the front and rear surfaces of the storage rack body 1 were required.

本発明は上記課題を解消することを目的としてなされたもので、可動式トレイの引き出しを可能にする光コードの余長の収容形態を工夫することによって、可動式トレイ上の配線用エリアのコンパクト化を可能にし、また、外部から引き込む光ケーブルの導出入口及び各可動式トレイ上に導出入される光コードの出入り口を収納ラック本体の中間部よりも前面側に設定することで、設置面積の狭隘化と、作業性の向上を図ることができる光接続箱を提供することである。 The present invention has been made for the purpose of solving the above-mentioned problems, and by devising the accommodation form of the extra length of the optical cord that enables the movable tray to be pulled out, the wiring area on the movable tray can be compact. In addition, the installation area of the optical cable drawn in from the outside and the entrance / exit of the optical cord led out / in on each movable tray are set on the front side of the middle part of the storage rack body, thereby reducing the installation area. And providing an optical junction box that can improve workability.

上記目的は下記構成により達成される。
（１） 収納ラック本体の前面側に引き出し可能な可動式トレイを備え、前記可動式トレイはその幅方向の略中央部に、光コードを接続する光通信用機器が設置されると共に、幅方向の両側部に配線用エリアが確保された光接続箱であって、
前記可動式トレイ上に導出入される光コードの出入り口を前記収納ラック本体の中間部よりも前面側に設置すると共に、前記光通信用機器に接続した前記光コードは前記可動式トレイ上に位置決め固定する係止手段を通過して余長をＳ字形状又はＵ字形状に蛇行した形態のコード束にして前記配線用エリアに収容配置して、前記出入り口に導かれることを特徴とする光接続箱。 The above object is achieved by the following configuration.
(1) A movable tray that can be pulled out is provided on the front side of the storage rack body, and the movable tray is provided with an optical communication device for connecting an optical cord at a substantially central portion in the width direction. An optical junction box with wiring areas secured on both sides of the
The entrance / exit of the optical cord led out / into the movable tray is installed on the front side of the intermediate portion of the storage rack body, and the optical cord connected to the optical communication device is positioned on the movable tray An optical connection characterized in that it passes through a locking means to be fixed, and is arranged and accommodated in the wiring area in the form of a cord bundle having a surplus length meandering into an S shape or U shape, and is guided to the entrance / exit box.

（２） 上記（１）において、前記配線用エリアには、前記光コードの余長のＳ字形状又はＵ字形状をなすコード束の交差を防止する隔壁を備えたことを特徴とする光接続箱。 (2) The optical connection according to (1), wherein the wiring area includes a partition wall that prevents a cord bundle having an S-shaped or U-shaped extra length of the optical cord from crossing. box.

（３） 上記（１）又は（２）において、前記光通信用機器が複数本の光コード相互をコネクタ接続するコネクタモジュールである場合に、前記複数本の光コードは、前記可動式トレイへの光コードの出入り口から前記コネクタモジュールの各光コネクタまでのコード長が一定となるように、前記光コードの余長の配線形態が設定されていることを特徴とする光接続箱。 (3) In the above (1) or (2), when the optical communication device is a connector module for connecting a plurality of optical cords to each other, the plurality of optical cords are connected to the movable tray. An optical connection box, wherein a wiring form of the extra length of the optical cord is set so that a cord length from the entrance / exit of the optical cord to each optical connector of the connector module is constant.

４） 上記（１）乃至（３）において、外部から前記収納ラック本体内に引き込む光ケーブルの導出入口を、前記可動式トレイへの光コードの出入り口と同様、前記収納ラック本体の中間部よりも前面側に設定したことを特徴とする光接続箱。 4) In the above (1) to (3), the lead-out entrance of the optical cable drawn into the storage rack main body from the outside is the front of the intermediate portion of the storage rack main body in the same manner as the optical cord entrance to the movable tray. An optical junction box characterized by being set on the side.

本発明の光接続箱は、従前の装置で用いられていたケーブルガイドを省略してケーブルガイドによる曲げ剛性の増大や嵩の増大等を排除できるようになるので、可動式トレイへの光コードの収容能力の増加や光接続箱の小型化を可能にできる。
また、外部から引き込む光ケーブルの導出入口及び各可動式トレイ上に導出入される光コードの出入り口を収納ラック本体の中間部よりも前面側に設定したことで、収納ラック本体の設置面積の狭隘化、並びに、作業性の向上を図ることができる。 In the optical junction box of the present invention, the cable guide used in the previous apparatus can be omitted, and the increase in bending rigidity and bulk due to the cable guide can be eliminated. The capacity can be increased and the optical junction box can be downsized.
In addition, the installation area of the storage rack body is narrowed by setting the optical cable lead-in entrance and the optical cord entrance / exit entrance / exit onto each movable tray to the front side of the middle part of the storage rack body. In addition, workability can be improved.

以下、本発明に係る光接続箱の好適な実施の形態について、図面を参照して詳細に説明する。
図１は、本発明に係る光接続箱の第１の実施の形態の斜視図である。
この実施の形態の光接続箱３１は、例えば、光通信の基地局等において加入者に接続される外部光ファイバ心線３３と局内の光通信用機器との接続等に使用されるもので、光通信用機器を収容するための複数個のユニット収容部３５ａ〜３５ｊが収納ラック本体３５内に設けられている。 DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of an optical junction box according to the present invention will be described in detail with reference to the drawings.
FIG. 1 is a perspective view of a first embodiment of an optical junction box according to the present invention.
The optical connection box 31 of this embodiment is used, for example, for connection between an external optical fiber core wire 33 connected to a subscriber in an optical communication base station or the like and an optical communication device in the station, etc. A plurality of unit accommodating portions 35 a to 35 j for accommodating optical communication devices are provided in the accommodating rack body 35.

また、本実施の形態に示す３個のユニット収容部３５ｈ，３５ｉ，３５ｊには、後述する光通信用機器４１〜４４を収納ラック本体３５の前面側に所定長だけ引き出し可能にする可動式トレイ５１が装備されており、収納ラック本体３５の外部又はラック本体３５内の他のユニット収容部からこの可動式トレイ５１上に出入りする光コード３７，３８及び外部光ファイバ心線３３には、可動式トレイ５１の可動を許容する光コードの余長が付与されている。   In addition, the three unit accommodating portions 35h, 35i, and 35j shown in the present embodiment include movable trays that allow optical communication devices 41 to 44 described later to be pulled out to the front side of the storage rack body 35 by a predetermined length. 51 is provided, and the optical cords 37 and 38 and the external optical fiber core wire 33 entering and exiting the movable tray 51 from the outside of the storage rack body 35 or from other unit housings in the rack body 35 are movable. An extra length of the optical cord that allows the movement of the expression tray 51 is given.

各可動式トレイ５１は、図２乃至図７に示すように、その幅方向の略中央部に光コードを接続する光通信用機器４１〜４４が設置され、また幅方向の左右両側部には配線用エリア５３，５４が確保されており、配線用エリア５３，５４には、各通信用機器４１〜４４に接続して可動式トレイ５１の引き出し操作を可能にする光コード３７，３８の余長がそれぞれ収容配置されている。   As shown in FIGS. 2 to 7, each movable tray 51 is provided with optical communication devices 41 to 44 for connecting an optical cord at a substantially central portion in the width direction, and on both left and right sides in the width direction. Wiring areas 53 and 54 are secured, and in the wiring areas 53 and 54, there are extra optical cords 37 and 38 that are connected to the communication devices 41 to 44 and allow the movable tray 51 to be pulled out. Each length is accommodated.

本実施の形態の場合、各可動式トレイ５１の引き出し側となる収納ラック本体３５の中間部よりも前面側の側面部に、可動式トレイ５１上に導出入される光コード３７，３８の出入り口６１が設置されると共に、光通信用機器４１〜４４に接続した光コード３７，３８の余長は、長手方向に適宜間隔をあけて結束する結束バンド等によって、Ｓ字形状又はＵ字形状をなすコード束に束ねられて配線用エリア５３，５４に収容配置されている。
なお、本実施の形態の場合、ユニット収容部３５ｇの可動式トレイ５１は、光通信用機器が搭載されず、未使用状態になっている（図１参照）。 In the case of the present embodiment, the entrances and exits of the optical cords 37 and 38 led out on the movable tray 51 to the side surface portion on the front side of the intermediate portion of the storage rack main body 35 on the drawer side of each movable tray 51. 61, and the extra lengths of the optical cords 37 and 38 connected to the optical communication devices 41 to 44 are S-shaped or U-shaped by a binding band or the like that is bound at an appropriate interval in the longitudinal direction. The cords are bundled together and accommodated in the wiring areas 53 and 54.
In the case of the present embodiment, the movable tray 51 of the unit accommodating portion 35g is not mounted with an optical communication device (see FIG. 1).

通信用機器４１〜４４としては、図２及び図３に示すコネクタモジュール４１や、図４及び図５に示す融着ユニット４２並びに通過心線収納ユニット４３や、図６及び図７示す複合ユニット等を挙げることができる。   As the communication devices 41 to 44, the connector module 41 shown in FIGS. 2 and 3, the fusion unit 42 and the passing core wire storage unit 43 shown in FIGS. 4 and 5, the composite unit shown in FIGS. Can be mentioned.

図４及び図５に示すように、ユニット収容部３５ｉの可動式トレイ５１には、２つの光通信用機器４２，４３が搭載されている。
スライド前方側の光通信用機器４２は、外部から収納ラック本体３５内に引き込まれた外部光ファイバ心線３３を、コネクタ付き光コード３８に融着する融着ユニットである。 As shown in FIGS. 4 and 5, two optical communication devices 42 and 43 are mounted on the movable tray 51 of the unit housing portion 35 i.
The optical communication device 42 on the front side of the slide is a fusion unit that fuses the external optical fiber core wire 33 drawn into the storage rack main body 35 from the outside to the optical cord 38 with a connector.

この融着ユニット４２は、融着処理や保守の際に、広い作業スペースを必要とするため、既述のように、可動式トレイ５１に搭載して収納ラック本体３５より前面側に引き出すことにより、作業用スペースの確保を図ることができる。
スライド後方側の光通信用機器４３は、外部から引き込まれる光ファイバ心線３３に含まれてこのユニット収容部３５ｉを通過する通過心線３９を収容するための通過心線収納ユニットである。 Since the fusion unit 42 requires a large work space during the fusion process and maintenance, it is mounted on the movable tray 51 and pulled out from the storage rack body 35 to the front side as described above. It is possible to secure a working space.
The optical communication device 43 on the rear side of the slide is a passing core wire storage unit for storing the passing core wire 39 that is included in the optical fiber core wire 33 drawn from the outside and passes through the unit housing portion 35i.

融着ユニット４２に引き込まれる光ファイバ心線３３は、図４に示すように、可動式トレイ５１への光コードの出入り口６１と同様に収納ラック本体３５の中間部よりも前面側に設けられた導出入口６３（図１参照）から、可動式トレイ５１上に導入された後、一旦、可動式トレイ５１の後方側に引き回されて、後端寄りに装備した係止手段であるトレイ側ケーブル固定具７１に固定される。 As shown in FIG. 4, the optical fiber core wire 33 drawn into the fusion unit 42 is provided on the front side of the intermediate portion of the storage rack body 35 in the same manner as the entrance / exit 61 of the optical cord to the movable tray 51. After being introduced onto the movable tray 51 from the lead-out inlet 63 (see FIG. 1), the tray-side cable is a locking means that is once routed to the rear side of the movable tray 51 and installed near the rear end. It is fixed to the fixture 71.

ケーブル固定具７１に固定された光ファイバ心線３３のうち、通過心線３９が通過心線収納ユニット４３に収容される一方、残りの光ファイバ４０はトレイ側ケーブル固定具７２によって固定された後、可動式トレイ５１の左側の配線用エリア５３を通ってトレイの前面側まで引き出され、融着ユニット４２内でコネクタ付き光コード３８に融着接続される。   Of the optical fiber cores 33 fixed to the cable fixture 71, the passing core wire 39 is accommodated in the passing core wire storage unit 43, while the remaining optical fibers 40 are fixed by the tray-side cable fixture 72. Then, it is pulled out to the front side of the tray through the wiring area 53 on the left side of the movable tray 51 and is fusion-connected to the optical cord with connector 38 in the fusion unit 42.

導出入口６３から収納ラック本体３５内に導入された外部光ファイバ心線３３は、トレイ導入口からトレイ後端のトレイ側ケーブル固定具７１までの経路に、可動式トレイ５１の引き出し操作を許容する光コードの余長が組み込まれる。   The external optical fiber core wire 33 introduced into the storage rack main body 35 from the lead-out inlet 63 allows the movable tray 51 to be pulled out along the path from the tray inlet to the tray-side cable fixture 71 at the rear end of the tray. The extra length of the optical cord is incorporated.

融着ユニット４２から導出された複数本のコネクタ付き光コード３８は、右側の配線用エリア５４の一部に設置した係止手段であるコード把持具７４によって通過位置を位置決め固定した後、結束バンド等で間欠的に結束したコード束状態にして、配線用エリア５４上をトレイ前面側に戻るＵ字状に蛇行させた形態で、出入り口６１に導かれる。 The plurality of optical cords with connectors 38 led out from the fusion unit 42 are positioned and fixed by a cord gripper 74 which is a locking means installed in a part of the right wiring area 54, and then a binding band. The cords are bundled intermittently such as in a cord bundle, and are guided to the entrance / exit 61 in a form of meandering in a U shape that returns to the front side of the tray on the wiring area 54.

なお、コネクタ付き光コード３８は、コード把持具７４から出入り口６１までにＵ字状に蛇行して配置された範囲が、可動式トレイ５１の引き出し操作を可能にする光コードの余長となる。   In the optical cord 38 with a connector, the range where the optical cord 38 meanders from the cord gripper 74 to the doorway 61 in a U-shaped manner is the extra length of the optical cord that allows the movable tray 51 to be pulled out.

出入り口６１に導かれたコード束は、出入り口６１の付近でケーブルクランプ７６によって位置決め固定される。   The cord bundle guided to the doorway 61 is positioned and fixed by the cable clamp 76 in the vicinity of the doorway 61.

また、コネクタ付き光コード３８のＵ字状の曲げ部付近には、可動式トレイ５１の出し入れの際に、曲げ部が変位して通過心線３９側に交差することを防止するための隔壁８１が装備されている。
また、配線用エリア５３を行き来する外部光ファイバ心線３３間には、トレイの前後方向に沿って装備された隔壁８２が介在して、可動式トレイ５１の出し入れの際に、可動式トレイ５１上の外部光ファイバ心線３３が輻輳や交差することを阻止する。 Further, in the vicinity of the U-shaped bent portion of the optical cord with connector 38, a partition wall 81 for preventing the bent portion from being displaced and intersecting the passing core wire 39 side when the movable tray 51 is taken in and out. Is equipped.
Further, a partition wall 82 provided along the front-rear direction of the tray is interposed between the external optical fiber core wires 33 going back and forth in the wiring area 53 so that the movable tray 51 can be removed when the movable tray 51 is taken in and out. The upper external optical fiber core wire 33 is prevented from being congested or crossed.

なお、図示例の融着ユニット４２は、融着部を覆う開閉蓋４２ａが、トレイの前面側に配置されたヒンジ４２ｂによって、融着部収容ケース本体４２ｃに取り付けられていて、融着作業の際には、開閉蓋４２ａが手前側に回動して開く。このように、開閉蓋４２ａの開閉向きを設定することで、開閉蓋４２ａの開閉が通過心線収納ユニット４３によって邪魔されることがなくなり、作業が容易にできる。
なお、同様に、通過心線収納ユニット４３の場合は、蓋の開閉時に融着ユニット４２と干渉することがないように、蓋を結合するヒンジ４３ａがトレイの後端側に配置されていて、蓋が後方側に回動するようになっている。 In the illustrated fusion unit 42, an opening / closing lid 42a covering the fusion part is attached to the fusion part accommodation case main body 42c by a hinge 42b disposed on the front side of the tray, so that the fusion work is performed. At that time, the opening / closing lid 42a is pivoted and opened to the front side. In this way, by setting the opening / closing direction of the opening / closing lid 42a, the opening / closing of the opening / closing lid 42a is not obstructed by the passing core wire storage unit 43, and the operation can be facilitated.
Similarly, in the case of the passing core wire storage unit 43, a hinge 43a for connecting the lid is arranged on the rear end side of the tray so as not to interfere with the fusion unit 42 when the lid is opened and closed. The lid is rotated rearward.

図２及び図３に示すように、ユニット収容部３５ｈの可動式トレイ５１に搭載された光通信用機器４１は、コネクタ付き光コード相互をコネクタ接続するコネクタモジュールで、融着ユニット４２から引き出されたコネクタ付き光コード３８を、他のユニット収容部の光通信用機器と接続されたコネクタ付き光コード３７に接続している。   As shown in FIGS. 2 and 3, the optical communication device 41 mounted on the movable tray 51 of the unit accommodating portion 35 h is a connector module that connects the optical cords with connectors to each other and is pulled out from the fusion unit 42. The optical cord with connector 38 is connected to the optical cord with connector 37 connected to the optical communication device in the other unit housing portion.

融着ユニット４２から引き出されたコネクタ付き光コード３８は、出入り口６１から当該可動式トレイ５１内に引き込まれ、トレイ５１の後部から左側の配線用エリア５３に引き回された後に、コネクタモジュール４１に装備されている。
また、他のユニット収容部の光通信用機器に接続されたコネクタ付き光コード３７は、入り口６１から当該可動式トレイ５１内に引き込まれ、トレイ５１の右側の配線用エリア５４において光コードの余長部がＳ字形状又はＵ字形状に蛇行した形態で配索された後、コネクタモジュール４１に装備されている。 The connector-attached optical cord 38 drawn from the fusion unit 42 is drawn into the movable tray 51 from the entrance / exit 61 and drawn from the rear portion of the tray 51 to the left wiring area 53, and then to the connector module 41. Equipped.
Further, the optical cord 37 with a connector connected to the optical communication device in the other unit housing portion is drawn into the movable tray 51 from the entrance 61, and the extra optical cord is left in the wiring area 54 on the right side of the tray 51. After the long portion is arranged in a meandering manner in an S shape or a U shape, the connector module 41 is equipped.

コネクタモジュール４１の付近では、各光コード３７、３８は、係止手段である複数個のクランプ部材７７，７８によって、適宜本数ずつ、位置決め固定されている。
また、可動式トレイ５１の右側の配線用エリア５４には隔壁８４が装備されており、この隔壁８４は光コード３７，３８の余長がＳ字形状又はＵ字形状に配索されて可動式トレイ５１の引き出し操作を可能にするコード束の交差を防止している。 In the vicinity of the connector module 41, the optical cords 37 and 38 are positioned and fixed as appropriate by a plurality of clamp members 77 and 78 as locking means .
The wiring area 54 on the right side of the movable tray 51 is provided with a partition wall 84. The partition wall 84 is movable with the extra lengths of the optical cords 37 and 38 arranged in an S shape or a U shape. The cord bundles that allow the tray 51 to be pulled out are prevented from crossing.

また、本実施の形態では、コネクタモジュール４１に接続される複数本の光コード３７，３８は、可動式トレイ５１の光コードの出入り口６１からコネクタモジュール４１上の各光コネクタまでのコード長が一定になるように、各光コードの余長のＳ字形状又はＵ字形状における曲げ半径や、曲げ中心を設定している。また、図２に示したように、余長部の結束を、複数の束に分割して、個別にＳ字形状又はＵ字形状の曲げを設定することで、出入り口６１からコネクタモジュール４１上の各接続部までの実際の離間距離差を吸収するようにしている。   In this embodiment, the plurality of optical cords 37 and 38 connected to the connector module 41 have a constant cord length from the optical cord entrance 61 of the movable tray 51 to each optical connector on the connector module 41. Thus, the bending radius and bending center in the S-shape or U-shape of the extra length of each optical cord are set. Further, as shown in FIG. 2, the binding of the extra length portion is divided into a plurality of bundles, and the S-shaped or U-shaped bending is individually set, so that the connector module 41 is connected to the connector module 41. The difference in actual separation distance to each connection portion is absorbed.

図６及び図７に示すように、ユニット収容部３５ｊの可動式トレイ５１に搭載された光通信用機器４４は、外部から収納ラック本体３５内に引き込まれた光ファイバ心線３３をコネクタ付き光コードに融着する融着ユニット４５と、該融着ユニット４５で接合された光コードに対して、他のユニット収容部の光通信用機器に接続されたコネクタ付き光コード３７を接続するためのコネクタモジュール４６とを備えた複合ユニットである。   As shown in FIGS. 6 and 7, the optical communication device 44 mounted on the movable tray 51 of the unit housing portion 35j is connected to the optical fiber core wire 33 drawn into the housing rack body 35 from the outside with an optical connector. An optical cord 37 with a connector connected to an optical communication device in another unit housing portion is connected to a fusion unit 45 fused to the cord and the optical cord joined by the fusion unit 45. A composite unit including a connector module 46.

なお、この複合ユニットでは、融着ユニット４５に接続する外部光ファイバ心線３３の可動式トレイ５１上での配線形態は、図４に示した融着ユニット４２に対する外部光ファイバ心線３３の配線形態と同一で良く、また、コネクタモジュール４６に接続する光コード３７の可動式トレイ５１上での配線形態は、図２に示したコネクタモジュール４１に対する光コード３７の配線形態と同一で良いため、配線の際に使用するクランプ等に同番号を付して説明を省略する。
また、光コード３７の交差を防止するための、右側の配線用エリア５４に装備される隔壁８４についても同一で良いため、同番号を付して説明を省略する。 In this composite unit, the wiring form of the external optical fiber core wire 33 connected to the fusion unit 45 on the movable tray 51 is the wiring of the external optical fiber core wire 33 to the fusion unit 42 shown in FIG. The wiring form on the movable tray 51 of the optical cord 37 connected to the connector module 46 may be the same as the wiring form of the optical cord 37 to the connector module 41 shown in FIG. The same numbers are assigned to clamps and the like used for wiring, and description thereof is omitted.
Further, since the partition 84 provided in the right wiring area 54 for preventing the crossing of the optical cords 37 may be the same, the same number is assigned and the description is omitted.

以上に説明した光接続箱３１では、可動式トレイ５１の両側に配線用エリア５３，５４を設定し、この配線用エリア５３，５４に収容する外部光ファイバ心線３３又は光コード３７，３８の余長は、長手方向に適宜間隔をあけて結束を施すことで、Ｓ字形状又はＵ字形状に蛇行させたコード束にして収容配置されていて、コード束自体に曲げ剛性の増大や嵩の増大を招くケーブルガイドを使用していないため、配線用エリア５３，５４をコンパクト化して光接続箱の小型化や、可動式トレイ５１の収納ラック本体３５からの出し入れ操作性の向上を図ることができる。   In the optical connection box 31 described above, wiring areas 53 and 54 are set on both sides of the movable tray 51, and the external optical fiber core wire 33 or the optical cords 37 and 38 accommodated in the wiring areas 53 and 54 are provided. The extra length is accommodated and arranged as a cord bundle meandering in an S-shape or U-shape by binding at an appropriate interval in the longitudinal direction, and the cord bundle itself has increased bending rigidity and bulk. Since the cable guide which causes an increase is not used, the wiring areas 53 and 54 can be made compact to reduce the size of the optical connection box, and to improve the operability of taking the movable tray 51 in and out of the storage rack body 35. it can.

また、光コードの余長を結束したコード束は、長手方向に間隔をあけて部分的に例えば結束バンド等によって結束しただけの単純な構造で良いため、可動式トレイ５１上に収容されたコード束の一部の光コードの交換等も簡単に行うことができて、可動式トレイ５１上に導出入する光コードの保守性の向上を図ることもできる。   Further, the cord bundle in which the extra lengths of the optical cords are bundled may have a simple structure in which the cords are only bundled partially with a binding band or the like at intervals in the longitudinal direction. It is possible to easily exchange a part of the optical cords of the bundle, and it is possible to improve the maintainability of the optical cords led out to and from the movable tray 51.

また、上記実施の形態の光接続箱３１では、隔壁８１，８２，８４の装備という簡単な構成だけで、可動式トレイ５１の引き出し操作に伴って変位挙動する光コードの余長部のコード束相互の交差を確実に防止することができるため、可動式トレイ５１の円滑な出し入れ操作を容易に確保することができる。   Further, in the optical junction box 31 of the above-described embodiment, the cord bundle of the extra length portion of the optical cord that behaves in a displacement manner with the pulling-out operation of the movable tray 51 with only a simple configuration including the partition walls 81, 82, 84. Since mutual crossing can be surely prevented, a smooth operation of moving the movable tray 51 can be easily ensured.

また、上記実施の形態の光接続箱３１では、可動式トレイ５１の両側の配線用エリア５３，５４に収容する各光コード３７，３８は、光コード余長のコード束に付与するＳ字形状又はＵ字形状の曲げ半径等の設定によって、コネクタモジュール４１上の光コネクタまでのコード長が一定に調整されるため、各光コードはいずれも同一の長さのもので良くなり、コネクタモジュール４１上の接続位置に応じて使用する光コードの長さを調整するような手間が不要になる。従って、光コードの追加や交換、光コネクタへの接続を切り換える際の作業性が向上する。   In the optical junction box 31 of the above-described embodiment, the optical cords 37 and 38 accommodated in the wiring areas 53 and 54 on both sides of the movable tray 51 are S-shaped to be given to the cord bundle of the extra optical cord length. Alternatively, since the cord length to the optical connector on the connector module 41 is adjusted to be constant by setting the bending radius of the U-shape, the optical cords can be of the same length. The trouble of adjusting the length of the optical cord to be used according to the upper connection position is not required. Therefore, the workability when adding or replacing the optical cord or switching the connection to the optical connector is improved.

また、上記実施の形態の光接続箱３１では、可動式トレイ５１が出し入れ操作される収納ラック本体３５の中間部よりも前面側の位置に外部から収納ラック本体３５内に引き込む光ファイバ心線３３の導出入口６３が装備されるため、収納ラック本体３５がその背面を建屋等の壁面に近接して設置されるような場合でも、光ケーブルの導出入口６３へのアクセスが容易にでき、収納ラック本体３５に引き込む光ファイバ心線３３の増設・保守が容易になる。また、背面側からの作業も不要になって作業性の向上と同時に、設置面積の狭隘化が図れる。 Further, in the optical junction box 31 of the above-described embodiment, the optical fiber core wire 33 is drawn into the storage rack body 35 from the outside at a position on the front side of the intermediate portion of the storage rack body 35 where the movable tray 51 is inserted and removed. Therefore, even when the storage rack body 35 is installed close to the wall of a building or the like, access to the optical cable outlet 63 can be facilitated. The extension / maintenance of the optical fiber core wire 33 led to 35 is facilitated. In addition, the work from the back side is not required, so that the workability can be improved and the installation area can be reduced.

本発明に係る光接続箱の第１の実施の形態の斜視図である。1 is a perspective view of a first embodiment of an optical junction box according to the present invention. 図１に示した光接続箱に実装されたコネクタモジュールの平面図である。It is a top view of the connector module mounted in the optical junction box shown in FIG. 図２に示したコネクタモジュールの正面図である。FIG. 3 is a front view of the connector module shown in FIG. 2. 図１に示した光接続箱に実装された融着ユニットの平面図である。FIG. 2 is a plan view of a fusion unit mounted on the optical junction box shown in FIG. 1. 図４に示した融着ユニットの正面図である。FIG. 5 is a front view of the fusion unit shown in FIG. 4. 図１に示した光接続箱に実装された複合ユニットの平面図である。It is a top view of the composite unit mounted in the optical junction box shown in FIG. 図６に示した複合ユニットの正面図である。It is a front view of the composite unit shown in FIG. 従来の光接続箱におけるトレイ上の光コードの収容構造を示す平面図である。It is a top view which shows the accommodation structure of the optical cord on the tray in the conventional optical junction box.

符号の説明Explanation of symbols

３１ 光接続箱
３３ 外部光ファイバ心線
３５ 収納ラック本体
３５ａ〜３５ｊ ユニット収容部
３７，３８ 光コード
３９ 通過心線
４１，４６ コネクタモジュール（光通信用機器）
４２，４５ 融着ユニット（光通信用機器）
４３ 通過心線収納ユニット（光通信用機器）
４４ 複合ユニット（光通信用機器）
５１ 可動式トレイ
５３，５４ 配線用エリア
６１ 出入り口
６３ 導出入口
７１，７２ トレイ側ケーブル固定具（係止手段）
７４ コード把持具（係止手段）
７６ ケーブルクランプ
７７，７８ クランプ部材（係止手段）
８１，８２，８４，８５ 隔壁 31 Optical connection box 33 External optical fiber core wire 35 Storage rack main body 35a to 35j Unit housing portion 37, 38 Optical cord 39 Passing core wire 41, 46 Connector module (device for optical communication)
42, 45 Fusing unit (optical communication equipment)
43 Passing cord storage unit (optical communication equipment)
44 Compound Unit (Optical Communication Equipment)
51 Movable trays 53, 54 Wiring area 61 Entrance / exit 63 Outlet / inlet 71, 72 Tray-side cable fixture (locking means)
74 Cord gripper (locking means)
76 Cable clamp 77, 78 Clamp member (locking means)
81, 82, 84, 85 Bulkhead

Claims (4)

収納ラック本体の前面側に引き出し可能な可動式トレイを備え、前記可動式トレイはその幅方向の略中央部に、光コードを接続する光通信用機器が設置されると共に、幅方向の両側部に配線用エリアが確保された光接続箱であって、
前記可動式トレイ上に導出入される光コードの出入り口を前記収納ラック本体の中間部よりも前面側に設置すると共に、前記光通信用機器に接続した前記光コードは前記可動式トレイ上に位置決め固定する係止手段を通過して余長をＳ字形状又はＵ字形状に蛇行した形態のコード束にして前記配線用エリアに収容配置して、前記出入り口に導かれることを特徴とする光接続箱。 A movable tray that can be pulled out is provided on the front side of the storage rack body, and the movable tray is provided with an optical communication device for connecting an optical cord at a substantially central portion in the width direction, and both side portions in the width direction. An optical connection box with a wiring area secured in
The entrance / exit of the optical cord led out / into the movable tray is installed on the front side of the intermediate portion of the storage rack body, and the optical cord connected to the optical communication device is positioned on the movable tray An optical connection characterized in that it passes through a locking means to be fixed, and is arranged and accommodated in the wiring area in the form of a cord bundle having a surplus length meandering into an S shape or U shape, and is guided to the entrance / exit box. 前記配線用エリアには、光コードの余長のＳ字形状又はＵ字形状をなすコード束の交差を防止する隔壁を備えたことを特徴とする請求項１に記載の光接続箱。 The optical connection box according to claim 1, wherein the wiring area includes a partition wall that prevents a cord bundle having an S-shaped or U-shaped extra length of the optical cord from crossing. 前記光通信用機器が複数本の光コード相互をコネクタ接続するコネクタモジュールである場合に、前記複数本の光コードは、前記可動式トレイへの光コードの出入り口から前記コネクタモジュールの各光コネクタまでのコード長が一定となるように、前記光コードの余長の配線形態が設定されていることを特徴とする請求項１又は２に記載の光接続箱。 When the optical communication device is a connector module for connecting a plurality of optical cords to each other, the plurality of optical cords are connected from the entrance / exit of the optical cord to the movable tray to each optical connector of the connector module. The optical connection box according to claim 1, wherein a wiring form of the extra length of the optical cord is set so that the cord length is constant. 外部から前記収納ラック本体内に引き込む光ケーブルの導出入口を、前記可動式トレイへの光コードの出入り口と同様、前記収納ラック本体の中間部よりも前面側に設定したことを特徴とする請求項１乃至３に記載の光接続箱。 The lead-out entrance of the optical cable drawn into the storage rack main body from the outside is set on the front side of the intermediate portion of the storage rack main body in the same manner as the optical cord entrance to the movable tray. The optical junction box as described in thru | or 3.
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