JP3914290B2 - Cable access box - Google Patents

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Publication number
JP3914290B2
JP3914290B2 JP30082996A JP30082996A JP3914290B2 JP 3914290 B2 JP3914290 B2 JP 3914290B2 JP 30082996 A JP30082996 A JP 30082996A JP 30082996 A JP30082996 A JP 30082996A JP 3914290 B2 JP3914290 B2 JP 3914290B2
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Japan
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core wire
cable
tension member
case
storage tray
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JP30082996A
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Japanese (ja)
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JPH10133031A (en
Inventor
忠 服部
育也 鶴田
悠也 岩本
竜也 石原
光男 鎌
徹也 星島
俊幸 石川
良行 吉井
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Nippon Telegraph and Telephone Corp
Japan Communication Accesories Manufacturing Co Ltd
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Nippon Telegraph and Telephone Corp
Japan Communication Accesories Manufacturing Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、テンションメンバと光ファイバ心線を有する光ケーブルの接続に用いる光ケーブル接続用収納ケース、詳しくは、ケース本体にテンションメンバを含む光ケーブルや送り込みケーブル、ドロップケーブルなどの各ケーブルを接続分配するために止着状態に保持し接続部を収納するようにしたケーブルアクセスボックスに関するものである。
【0002】
【従来の技術】
一般に、光ファイバ心線とテンションメンバを有する光ケーブルの接続に際しては、テンションメンバを止着することが不可欠である。このため、従来では、光ケーブル接続用収納ケースにねじ穴を形成し、このねじ穴に螺合するねじ部材にテンションメンバの端部を巻き付けて工具を用いて止着することが行われていた。
【0003】
【発明が解決しようとする課題】
しかしながら、従来の光ケーブル接続分配にあっては、ケーブル端末処理にはケーブル被覆の剥がし、切裂、曲げ加工が必要で心線を取り出す際にはケーブルを長めに裂いて作業し、ケースへの止着作業ではテンションメンバを心線から裂いてテンションメンバ端部の被覆を剥がし、露出したテンションメンバ端を巻き付け止着する作業が不可欠で作業工数が多く時間もかかって、心線の交換や増設もむずかしく、しかもねじ部材が経時的な緩みを生じやすく、テンションメンバやケーブルが外れるおそれがあるほか、心線配線経路によっては心線のねじれ現象が生ずるという心線接続の安全性の上で問題があった。本発明は、これら従来の欠点を排除しようとするもので、光ケーブル、テンションメンバや送り込みケーブルなどを経時的な緩みを生じることなく止着でき、また、止着作業並びに心線接続作業も容易に行うことができ各ケーブルの併用でも取扱い容易なケーブルアクセスボックスを提供することを目的とする。
【0004】
【課題を解決するための手段】
本発明は、ケーブル心線を巻き付ける心線巻回部と、心線接続用のコネクタ保持部とを備えた心線収納トレイを有する固定ケースに蓋ケースを摺動自在に組み付けると共に、前記固定ケースに形成したケーブル配索孔から光ファイバ心線とテンションメンバを有する複数の光ケーブルを導入し、該テンションメンバを固定ケースに設けたテンションメンバ固定金具に止着して光ファイバ心線を互いに接続するケーブルアクセスボックスにおいて、前記心線収納トレイに形成した心線導出入部の心線導出入軸方向と同心に心線収納トレイの連結ピンを取付アームを介して設け、該連結ピンを固定ケースにある支承部の嵌合孔に回動自在で、かつ着脱自在に配備すると共に、前記取付アームに位置固定用の凹状係止部を複数備え、各凹状係止部を前記支承部に形成した凸状係止部に係脱自在に配備され、さらに固定ケースの内面両サイドに前記心線収納トレイの支承部を一対対向して備え、該支承部の嵌合孔の位置を上下方向に段差をつけて複数形成して前記心線収納トレイを観音開きできるように連結しているものである。
【0005】
【発明の実施の形態】
この発明にかかるケーブルアクセスボックスは、テンションメンバごとケーブル全体をケーブル配索孔に装入してからテンションメンバをテンションメンバ固定金具の一対のテンションメンバ挿通孔に分けて通し固定子で止着すると共に、該挿通孔間の中心にある凹溝に心線を嵌入係止させて、さらに心線押えを介して心線収納トレイの一方の心線導出入部から心線収納トレイ内に入れ、心線巻回部を経て心線接続部となるコネクタを保持部に支持し、該コネクタで接続分岐した心線を他の心線導出入部から取り出してケーブル配索孔からケース本体外に導出できるようにして、固定ケースに蓋ケースを被せて光ケーブルを定着する。この場合、閉蓋前に光ケーブルはコネクタで接続して余長心線は開蓋した心線収納トレイに巻き取りコネクタを保持したのち、心線収納トレイを固定ケース内に嵌着する。この固定ケースにはSCコネクタ、単心MTコネクタ、或いはメカニカルスプライスの単独または組合せで収容できるコネクタ保持部或いはモジュールのある心線収納トレイを選んで嵌着する。この後に、蓋ケースをスライドして組み付けるとケーブル配索孔のある可撓性板が固定ケースと蓋ケースとで嵌着され、ケーブルがテンションメンバを止着した位置に保持されるし、ケーブルの抜けも防止され、このため、テンションメンバやケーブルの止着が外れることが確実に防止できる。
また、固定ケース内部にある心線収納トレイは取付アームを介して設けた連結ピンが心線導出入部の軸心方向にあって回動するので心線収納トレイを旋回して展開しても配線心線のねじれがなく安全な状態で整とん処理でき取扱作業も簡便で確実に収納することもできる。
【0006】
【実施例】
以下、この発明の実施例を図1乃至図7を参照して説明すると、幹線光ケーブルに設けられた架空クロージャから分岐した分岐光ケーブルがケーブルアクセスボックスに導入され、このケーブルアクセスボックスから建物内に向けて引込光ケーブルが分岐配索されて用いられるものである。
【0007】
光ケーブル接続用収納ケース(以下、単に収納ケースと称する)は、取付板にあるフック或いはリングにバンドを通して電柱に抱き付けて固定され、或いは建物の外壁に取付けられて用いられる。そしてケーブル心線を巻き付ける心線巻回部11と、心線接続用のコネクタ保持部12とを備えた心線収納トレイ10を有する固定ケース1に蓋ケースを摺動自在に組み付けると共に、前記固定ケースに形成したケーブル配索孔3から光ファイバ心線とテンションメンバを有する複数の光ケーブルを導入し、該テンションメンバを固定ケース1に設けたテンションメンバ固定金具4に止着して光ファイバ心線を互いに接続する光ケーブル接続用収納ケースであって、前記心線収納トレイ10に形成した心線導出入部13の心線導出入軸方向と同心に心線収納トレイ10の連結ピン14を取付アーム15を介して設け、該連結ピン14を固定ケース1にある支承部16に回動自在で、かつ着脱自在に配備してある。
【0008】
また、前記固定ケース1は、外面にリング5のある取付板6を備え、内面両サイドに前記心線収納トレイ10の支承部16を一対対向して備え、該支承部16の嵌合孔16 1 の位置を上下方向に段差つけて複数形成して前記心線収納トレイ10を観音開きできるように連結する。(図1乃至図3)
従って複数積層される心線収納トレイは固定ケースの左右に振り分けて展開位置でき前方のトレイが邪魔にならずに電柱上の架空での心線接続作業が良好にでき作業効率を向上できるし、光ケーブルの導出入も両方にバランスよく振り分けて配線できスペースが限られている電柱に容易に設置することができる。
この固定ケース1は、樹脂の射出成形等により成形され、ケーブル導入用の配索孔3が形成された可撓性板30が嵌着され、該ケーブル配索孔3から光ファイバ心線とテンションメンバを有する複数の光ケーブルを導入し、該光ケーブルのテンションメンバを止着するテンションメンバ固定金具4に定着できるようにしてある。(図10及び図11) この光ケーブルをテンションメンバごと止着するテンションメンバ固定金具4としては、複数の心線挿入用凹溝40と、各凹溝40の両サイドにテンションメンバ挿通孔41に突没自在に設けたテンションメンバ固定子42とを備えたもので光ケーブルを止着するようにしてある。(図11)
【0009】
前記心線収納トレイ10にある前記連結ピン14としては、取付アーム15の両側に突設され、該取付アーム15に位置固定用の凹状係止部17を複数備え各凹状係止部17を前記支承部16に形成した凸状係止部18に係脱自在に配備され固定ベース1に対して心線収納トレイ10が水平状態並びに垂直状態に保持抵抗が大きく確実に固定支持されるようにし架空作業の際に開いた心線収納トレイ10が風などや作業中での手などの接触によってもみだりに動かないので保持位置が維持され心線接続作業がしやすくしてある。(図6及び図7)
【0010】
さらに、前記心線収納トレイ10内の心線巻回部11は図4に示すように心線を巻き取る環状壁及び押え片19とからなり心線接続用のコネクタを収納するコネクタ収納部12には両サイドにバネ片20のあるリブ21で区画して備え、コネクタの挾持を確実化し、さらに仕切壁22或いは凹凸折曲部を設けて偏平状トレイの補強を兼ねると共に、連結ピンとを反対側面に取付用のヘッド部のあるノブ23を突設してある。このノブ23は旋回操作把手として利用するほか、心線収納トレイ10を固定ケース1から取り外した際に他のケースに嵌着する係止取付部として活用するのがよい。(図4及び図8)
この場合、前記心線収納トレイ10は周囲及び中央に環状壁を底面板に立設した偏平ケースであって、SCコネクタ、単心MTコネクタ或いはメカニカルスプライスの単独または組合せを収容できるコネクタ収納保持部12を形成したものを選んで用いられる。また、この心線収納トレイ10にはトレイ蓋101 が取付け孔24を介して取付片25に着脱自在に備えられ、段積状態で固定ケース1に装備されて整理しやすくし心線識別も容易にできるようにしてある。(図4及び図5)
【0011】
前記ケーブル配索孔3は、前記固定ケース1に着脱自在に嵌着されるスポンジ或いはパッキンなどの可撓性板30に複数並列して備えられたスリット31のある挿通孔であって、該挿通孔中に切除可能の薄肉壁32を有していて、必要なケーブル配索孔3のみを使用しシール性確保を容易にしてある。(図10)
なお、可撓性板30は固定ケース1に突設した取付舌片9に嵌装する嵌入孔33と、外周側に凹溝34及び凸状の嵌合部35と、係止孔36とを有し、それぞれ固定ケース1及び蓋ケース2に対応して設けた凹凸嵌合部7と係止爪8及びガイド溝39に嵌着支持できるようにしてある。(図2及び図12)
【0012】
また、前記固定ケース1には、蓋ケース2が取り付けられる摺動嵌合係止部37が設けられ、これに嵌合する嵌合係止部38が蓋ケース2側に備えられると共に、互に当接する当部または引掛部を固定ケース1または蓋ケース2に設けてロック機能をはたすようにするのがよい。(図3及び図12)
【0013】
なお、前記心線収納トレイ10の心線導出入部13には、図9に示す心線を挿入する異径挿通孔47を複数備えたCRゴム等の弾性心線押え48を圧入保持し、心線のねじれ防止に役立てることが配慮されている。
【0014】
この実施の形態にかかる光ケーブル接続用収納ケースにあっては、分岐光ケーブルと引込光ケーブルの接続に際しては、先ず、固定ケース1を電柱にバンド等を用いて抱き込み固定し、分岐光ケーブルと引込光ケーブルをそれぞれ配索孔に、例えば、分岐光ケーブルを一方のケーブル配索孔3に引込光ケーブルを他方のケーブル配索孔3に通す。そして、各光ケーブルのテンションメンバは、テンションメンバ固定金具4に止着し、また光ファイバ心線はケーブル巻回・接続部に導いてコネクタにより接続し、その余長部分を心線収納トレイ10に巻き取って保持する。
【0015】
この後、固定ケース1の心線収納トレイ10を蓋ケース2により被蓋して蓋ケース2を固定ケース1に定着する。ここで、蓋ケース2は内面の保持突起などの係止凹部が、固定ケース1の係止凸部に当接してロックされ移動を止する。したがって、止着されたテンションメンバまたはケーブルは緩みを生じることを防止でき、最小工具で接続作業が行えるため、ケーブル接続作業が容易である。
また、上述した各実施の形態では、蓋ケース2を固定ケース1に取り付けることで、心線収納トレイ10の振れ止めと押さえ(浮き上がりの防止)を行うが、蓋ケース2によって浮き上がりの防止のみを行わせることも可能である。
【0016】
前記蓋ケース2は、図12に示すように一端に袋状のキャップ部44を有し他端内面にガイド溝39とロック凹部43とを形成し、固定ケース1にある係合部37と嵌合係止部38で摺動自在に組み込まれ固定ケース1に設けた可撓性板30の係止部35とロック凸部43 に嵌め込まれて蓋ケース2がみだりに開蓋しないようにしてある。(図2及び図10)
【0017】
なお、この具体例では、架空配線に付設される接続用クロージャからドロップアウトした分岐線を接続するために電柱設置型とした架空配線分配用の光ケーブル接続用収納ケースとしたもので、固定ケース1のリングに電柱取付用スチールベルト(図示せず)を挿通して取付けられるが、取付板の取替えで容易に建物、室内などの固定タイプとすることができる。(図1)
【0018】
【発明の効果】
本発明は、ケーブル心線を巻き付ける心線巻回部と、心線接続用のコネクタ保持部とを備えた心線収納トレイを有する固定ケースに蓋ケースを摺動自在に組み付けると共に、前記固定ケースに形成したケーブル配索孔から光ファイバ心線とテンションメンバを有する複数の光ケーブルを導入し、該テンションメンバを固定ケースに設けたテンションメンバ固定金具に止着して光ファイバ心線を互いに接続するケーブルアクセスボックスにおいて、前記心線収納トレイに形成した心線導出入部の心線導出入軸方向と同心に心線収納トレイの連結ピンを取付アームを介して設け、該連結ピンを固定ケースにある支承部の嵌合孔に回動自在で、かつ着脱自在に配備すると共に前記取付アームに位置固定用の凹状係止部を複数備え、各凹状係止部を前記支承部に形成した凸状係止部に係脱自在に配備されてい ことにより、各種のケーブルをテンションメンバとともに止着状態に兼用保持でき、その止着作業も容易な作業で止着できるしケーブルも容易なワンタッチで作業でき、しかも心線収納トレイを回動変位しても心線がよじれることなく安全で作業がしやすく、しかも、固定ベースに対して心線収納トレイが所定位置に的確に固定保持されふらついたり、外れたりすることなく心線接続作業を著しくしやすくでき、確実な固定支持ができて作業性を大巾に向上でき、さらに固定ケースの内面両サイドに前記心線収納トレイの支承部を一対対向して備え、該支承部の嵌合孔の位置を上下方向に段差をつけて複数形成して前記心線収納トレイを観音開きできるように連結していることで複数積層される心線収納トレイは固定ケースの左右に振り分けて展開位置でき前方のトレイが邪魔にならずに電柱上の架空での心線接続作業が良好にでき作業効率を向上できるし、光ケーブルの導出入も両方にバランスよく振り分けて配線できスペースが限られている電柱に容易に設置することができるほか、心線収納トレイの展開面も左右両方に保持固定できて多面を有効に利用して作業性を大巾に向上できるし、心線接続後の接続部材の固定も一元的収納部に集約して収納も簡単で識別容易なケーブル把持が可能であり、かつテンションメンバを確実に止着でき、経時的な緩みも有効に防止でき各ケーブルのアクセス取扱い容易なケーブルアクセスボックスとすることができる。
【図面の簡単な説明】
【図1】 本発明の一の実施例を示し、(a)は一部切欠正面図、(b)は一部切欠側面図、(c)は背面図、(d)は底面図である。
【図2】 図1の例の固定ケースを示し、(a)はその正面図、(b)は中央縦断面図、(c)は底面図である。
【図3】 (a)は図1のA−A線における縦断面図、(b)は図1のB−B線における縦断面である。
【図4】 図1の例で用いられる心線収納トレイで蓋を外した状態を示し、(a)は背面図、(b)は平面図、(c)は側面図、(d)はC−C線における縦断面図、(e)はD−D線における縦断面図である。
【図5】 本発明で用いられる心線収納トレイのトレイ蓋を示す平面図である。
【図6】 図4の一部を拡大して示し、(a)は平面図、(b)はE−E線における縦断面図、(c)はF−F線における縦断面図である。
【図7】 本発明で用いられる心線収納トレイの作動状態を示し、(a)は一部の拡大側面図、(b)はF1 −F1 線における切断面図である。
【図8】 図4の例の一部の拡大詳細図で、(a)はその平面図、(b)はG−G線における縦断面図、(c)はH−H線における縦断面図である。
【図9】 本発明で用いられる心線押えを示し、(a)は側面図、(b)は底面図、(c)は側面図、(d)はI−I線における縦断面図である。
【図10】 本発明で用いられるケーブル把持具を示し、(a)はその正面図、(b)は一部切断の平面図、(c)は側面図、(d)はJ−J線における縦断面図である。
【図11】 本発明で用いられるテンションメンバ固定金具を示し、(a)はその平面図、(b)はその正面図、(c)はK−K線における縦断面図である。
【図12】 本発明で用いられる蓋ケースを示し、(a)はその平面図、(b)は正面図、(c)は側面図である。
【符号の説明】
1 固定ケース
2 蓋ケース
3 ケーブル配索孔
4 テンションメンバ固定金具
リング
6 取付板
7 凹凸嵌合部
8 係止爪
9 取付舌片
10 心線収納トレイ
10 トレイ蓋
11 心線巻回部
12 コネクタ保持部
13 心線導出入部
14 連結ピン
15 アーム
16 支承部
16 嵌合孔
17 係
18
19 心線押え片
20 バネ片
21 リブ
22 仕切壁
23 ノブ
30 可撓性板
31 スリット
32 肉薄壁
33 嵌入孔
34 凹溝
35 嵌合部
36 係止孔
37 嵌合部
38 嵌合係止部
40 心線挿入用凹溝
41 テンションメンバ挿通孔
42 テンションメンバ固定子
43 ロック凹部
43 ロック凸部
47 異径挿通孔
48 弾性心線押え
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an optical cable connection storage case used for connecting an optical cable having a tension member and an optical fiber core wire, and more specifically, for connecting and distributing each cable such as an optical cable, a feed cable, and a drop cable including a tension member in the case body. It is related with the cable access box which hold | maintained to the attachment state and accommodated the connection part.
[0002]
[Prior art]
Generally, when connecting an optical fiber having an optical fiber core wire and a tension member, it is essential to fix the tension member. For this reason, conventionally, a screw hole is formed in the optical cable connection storage case, and the end of the tension member is wound around the screw member screwed into the screw hole and fastened with a tool.
[0003]
[Problems to be solved by the invention]
However, in the conventional optical cable connection distribution, stripping the cable sheath, cutting, and bending are necessary for cable end processing. In the attachment work, it is indispensable to tear the tension member from the core wire, peel off the coating on the end of the tension member, wrap the exposed end of the tension member and fasten it. In addition to the fact that the screw members are difficult to loosen over time, the tension members and cables may be disconnected, and depending on the cable wiring route, there is a problem with the safety of the cable connection that the cable twists. there were. The present invention is intended to eliminate these conventional drawbacks, and can fix optical cables, tension members, feeding cables, and the like without loosening over time, and also facilitates fixing work and core connection work. An object of the present invention is to provide a cable access box that can be used and can be easily handled even in combination with each cable.
[0004]
[Means for Solving the Problems]
The present invention slidably attaches a lid case to a fixed case having a core wire storage tray provided with a core wire winding portion for winding a cable core wire and a connector holding portion for connecting a core wire, and the fixed case A plurality of optical cables having an optical fiber core wire and a tension member are introduced from the cable routing hole formed on the optical fiber core, and the optical fiber core wires are connected to each other by fixing the tension member to a tension member fixing bracket provided in a fixing case. In the cable access box, a connecting pin for the core wire storage tray is provided via a mounting arm concentrically with the core wire lead-in / in shaft direction of the core wire lead-in / out portion formed in the core wire storage tray, and the connection pin is provided in the fixed case. pivotable fitting hole of the bearing, and thereby removably deployed, a plurality of recessed retaining portion for position fixing to the mounting arm, each recessed retaining portion It is provided in a convex locking part formed on the bearing part so as to be freely disengaged, and further provided with a pair of bearing parts of the core wire storage tray on both sides of the inner surface of the fixed case, and a fitting hole of the bearing part. A plurality of positions are formed with steps in the vertical direction, and the core wire storage trays are connected so as to be able to open the doors .
[0005]
DETAILED DESCRIPTION OF THE INVENTION
In the cable access box according to the present invention, the entire cable together with the tension member is inserted into the cable routing hole, and then the tension member is divided into a pair of tension member insertion holes of the tension member fixing bracket and fixed with a through stator. The core wire is inserted and locked in the concave groove in the center between the insertion holes, and is further inserted into the core wire storage tray from one core wire lead-in / out portion of the core wire storage tray via the core wire presser. Support the connector that becomes the core wire connecting part through the winding part on the holding part, and take out the core wire connected and branched by the connector from the other core wire lead-in part so that it can be led out of the case body from the cable routing hole Then, cover the fixed case with the lid case to fix the optical cable. In this case, the optical cable is connected by the connector before the lid is closed, and the extra long core wire is held in the opened core wire storage tray, and then the core wire storage tray is fitted in the fixed case. A core wire storage tray with a connector holding part or a module that can be accommodated alone or in combination with an SC connector, a single core MT connector, or a mechanical splice is selected and fitted into the fixed case. After that, when the lid case is slid and assembled, the flexible plate with the cable routing hole is fitted between the fixed case and the lid case, and the cable is held at the position where the tension member is fastened. It is also possible to prevent the tension member and the cable from coming off.
Also, the core wire storage tray inside the fixed case rotates with the connecting pin provided through the mounting arm in the axial direction of the core wire lead-in / out section, so that wiring is possible even if the core wire storage tray is rotated and deployed. There is no twisting of the core wire, and it can be processed in a safe state and can be handled easily and reliably.
[0006]
【Example】
In the following, an embodiment of the present invention will be described with reference to FIGS. 1 to 7. A branched optical cable branched from an aerial closure provided on a trunk optical cable is introduced into a cable access box, and the cable access box is directed into the building. Thus, a lead-in optical cable is used by being branched and wired.
[0007]
A storage case for connecting an optical cable (hereinafter simply referred to as a storage case) is used by being hooked and fixed to a utility pole through a band or a hook or ring on a mounting plate, or attached to an outer wall of a building. Then, the cover case 2 is slidably assembled to the fixed case 1 having the core wire storage tray 10 provided with the core wire winding portion 11 for winding the cable core wire and the connector holding portion 12 for connecting the core wire, A plurality of optical cables having an optical fiber core wire and a tension member are introduced from a cable routing hole 3 formed in the fixed case 1 , and the tension member is fixed to a tension member fixing bracket 4 provided in the fixed case 1. a cable connection housing case to connect the core wire to each other, mounting a connecting pin 14 of the cord storage tray 10 to the core-guiding Nyujiku direction concentric with the core wire storage tray 10 to form the core-guiding join the club 13 It is provided via an arm 15 and the connecting pin 14 is disposed on a support portion 16 in the fixed case 1 so as to be rotatable and detachable.
[0008]
Further, the fixed case 1 includes a mounting plate 6 having a ring 5 on the outer surface, a pair of support portions 16 of the core wire storage tray 10 facing each other on both sides of the inner surface, and a fitting hole 16 of the support portion 16. 1 The core wire storage tray 10 is connected so that it can be opened in doubles. (FIGS. 1 to 3)
Therefore, a plurality of laminated core wire storage trays can be distributed to the left and right of the fixed case, and the front tray can be placed without obstruction, and the overhead wire connection work on the power pole can be improved and work efficiency can be improved. The optical cable can be wired and distributed in a balanced manner, and can be easily installed on a power pole with limited space.
The fixed case 1 is molded by resin injection molding or the like, and a flexible plate 30 in which a cable introduction wiring hole 3 is formed is fitted, and the optical fiber core wire and the tension are fitted from the cable wiring hole 3. A plurality of optical cables having members are introduced so that they can be fixed to the tension member fixing bracket 4 for fastening the tension members of the optical cables. (FIGS. 10 and 11) The tension member fixing bracket 4 for fastening the optical cable together with the tension member includes a plurality of core wire insertion grooves 40 and protruding into the tension member insertion holes 41 on both sides of each groove 40. An optical cable is fastened with a tension member stator 42 provided so as to be freely sunk. (Fig. 11)
[0009]
Examples of the connecting pin 14 in the core wire receiving tray 10, projecting from the opposite sides of the mounting arm 15, the respective concave engagement portion 17 includes a plurality of recessed engaging portions 17 for position fixing to a mounting arm 15 fictitious as cord storage tray 10 is held resistance to horizontal state and a vertical state relative to detachably to be deployed fixed base 1 in a convex-shaped engaging portion 18 formed on the bearing portion 16 is increased securely fixed support Since the core wire storage tray 10 opened at the time of the work does not move unnecessarily due to wind or the touch of the hand during the work, the holding position is maintained and the core wire connection work is facilitated. (FIGS. 6 and 7)
[0010]
Further, as shown in FIG. 4, the core winding part 11 in the core storage tray 10 comprises an annular wall for winding the core and a presser piece 19, and a connector storage 12 for storing a connector for connecting the cores. Is provided with ribs 21 having spring pieces 20 on both sides to ensure the holding of the connector, and further provided with partition walls 22 or concave and convex bent portions to reinforce the flat tray and opposite to the connecting pins A knob 23 having a mounting head portion is provided on the side surface. The knob 23 may be used as a turning operation handle, or may be used as a locking attachment portion that is fitted to another case when the core wire storage tray 10 is removed from the fixed case 1. (FIGS. 4 and 8)
In this case, the core wire storage tray 10 is a flat case in which an annular wall is erected on the bottom plate at the periphery and the center, and a connector storage holding portion capable of storing an SC connector, a single core MT connector, or a mechanical splice alone or in combination. The one formed 12 is used. Further, the core wire storage tray 10 is provided with a tray lid 101 detachably attached to the mounting piece 25 through the mounting hole 24, and is mounted on the fixed case 1 in a stacked state for easy organization and easy identification of the core wire. It can be done. (FIGS. 4 and 5)
[0011]
The cable routing hole 3 is an insertion hole having a plurality of slits 31 provided in parallel with a flexible plate 30 such as a sponge or packing that is detachably fitted to the fixed case 1. A thin wall 32 that can be cut out is provided in the hole, and only the necessary cable routing hole 3 is used to ensure sealing performance. (Fig. 10)
The flexible plate 30 has a fitting hole 33 to be fitted in the mounting tongue piece 9 projecting from the fixed case 1, a concave groove 34 and a convex fitting portion 35 on the outer peripheral side, and a locking hole 36. And are provided so as to be fitted and supported in the concave-convex fitting portion 7, the locking claw 8, and the guide groove 39 provided corresponding to the fixed case 1 and the lid case 2, respectively. (FIGS. 2 and 12)
[0012]
Further, the fixed case 1 is provided with a sliding fitting locking portion 37 to which the lid case 2 is attached, and a fitting locking portion 38 to be fitted to the fixing case 1 is provided on the lid case 2 side. It is preferable to provide the abutting portion or the hooking portion in contact with the fixed case 1 or the lid case 2 so as to achieve a locking function. (FIGS. 3 and 12)
[0013]
An elastic core wire presser 48 such as CR rubber having a plurality of different diameter insertion holes 47 for inserting the core wire shown in FIG. It is considered to help prevent twisting of the wire.
[0014]
In the optical cable connection storage case according to this embodiment, when connecting the branch optical cable and the lead-in optical cable, first, the fixing case 1 is held and fixed to the utility pole using a band or the like, and the branch optical cable and the lead-in optical cable are connected. each wiring hole, for example, a branch optical cable on one of the cable Haisakuana 3 through the pull-optical cable to the other cable Haisakuana 3. The tension member of each optical cable is fixed to the tension member fixing bracket 4, and the optical fiber core wire is led to the cable winding / connecting portion and connected by the connector, and the extra length portion is connected to the core wire storage tray 10. Wind up and hold.
[0015]
Thereafter, the core wire storage tray 10 of the fixed case 1 is covered with the cover case 2 to fix the cover case 2 to the fixed case 1. Here, the cover case 2 locking recess such as the inner surface of the retaining projections, to deter movement is locked in contact with the engaging protrusion of the stationary casing 1. Therefore, the tension member or the cable that has been fastened can be prevented from being loosened, and the connection work can be performed with a minimum tool, so that the cable connection work is easy.
Further, in each of the above-described embodiments, the lid case 2 is attached to the fixed case 1 to prevent the cord storage tray 10 from swinging and holding down (preventing lifting). It is also possible to do this.
[0016]
As shown in FIG. 12 , the lid case 2 has a bag-like cap portion 44 at one end, a guide groove 39 and a lock recess 43 formed at the inner surface of the other end, and is fitted with the engaging portion 37 in the fixed case 1. is not to lid opening cover case 2 indiscriminately fitted to Gogakaritome portion 38 slidably incorporated in the locking portion 35 and the lock projection 43 1 of the flexible plate 30 provided on the fixed case 1 . (FIGS. 2 and 10)
[0017]
In this specific example, a storage case for connecting an optical cable for distribution of overhead wiring, which is a utility pole installation type, is used to connect a branch line dropped out from a connection closure attached to the overhead wiring. The steel pole (not shown) for attaching a power pole is inserted into the ring 5 and attached to the ring 5. However, by replacing the attachment plate 6 , a fixed type such as a building or a room can be easily obtained. (Figure 1)
[0018]
【The invention's effect】
The present invention slidably attaches a lid case to a fixed case having a core wire storage tray provided with a core wire winding portion for winding a cable core wire and a connector holding portion for connecting a core wire, and the fixed case A plurality of optical cables having an optical fiber core wire and a tension member are introduced from the cable routing hole formed on the optical fiber core, and the optical fiber core wires are connected to each other by fixing the tension member to a tension member fixing bracket provided in a fixing case. In the cable access box, a connecting pin for the core wire storage tray is provided via a mounting arm concentrically with the core wire lead-in / in shaft direction of the core wire lead-in / out portion formed in the core wire storage tray, and the connection pin is provided in the fixed case. pivotable fitting hole of the bearing portion, and a plurality of recessed retaining portion for position fixing to the mounting arm with removably deployed before each recessed retaining portion By the projected retaining portion formed on the bearing that is disengageably deployment, the various cables can also used held in the fastening state with tension member, also to be fastened in an easy task that fastening work The cable can be easily operated with a single touch, and even if the core wire storage tray is rotated and displaced, the core wire is not kinked and is safe and easy to work with. The core wire connection work can be remarkably facilitated without being fluctuated or detached, and it can be securely fixed and supported to greatly improve workability . The core wire can be stored on both sides of the fixed case. A pair of tray support portions are provided opposite to each other, and a plurality of fitting hole positions in the support portions are formed with a step in the vertical direction so that the core wire storage trays are connected so as to be able to open the door. Stacked core wire storage trays can be deployed to the left and right of the fixed case, the front tray does not get in the way, and the overhead wire connection work on the power pole can be improved, improving work efficiency and improving the optical cable In addition to being able to distribute the wiring in a balanced manner to both, it can be easily installed on a power pole with limited space, and the expansion surface of the core wire storage tray can be held and fixed on both the left and right sides, making effective use of multiple surfaces The workability can be greatly improved, the connection members after the core wires are connected can be fixed in a central storage, and the cables can be easily and easily identified, and the tension member can be securely fixed. In addition, it is possible to effectively prevent loosening with time, and to make the cable access box easy to handle each cable.
[Brief description of the drawings]
FIG. 1 shows one embodiment of the present invention, in which (a) is a partially cutaway front view, (b) is a partially cutaway side view, (c) is a rear view, and (d) is a bottom view.
2 shows a fixing case of the example of FIG. 1, wherein (a) is a front view thereof, (b) is a central longitudinal sectional view, and (c) is a bottom view.
3A is a longitudinal sectional view taken along line AA in FIG. 1, and FIG. 3B is a longitudinal sectional view taken along line BB in FIG.
4 shows a state in which the lid is removed from the core wire storage tray used in the example of FIG. 1, (a) is a rear view, (b) is a plan view, (c) is a side view, and (d) is C -C is a longitudinal sectional view taken along line -C, and (e) is a longitudinal sectional view taken along line DD.
FIG. 5 is a plan view showing a tray cover of the core wire storage tray used in the present invention.
6 is an enlarged view of a part of FIG. 4, in which (a) is a plan view, (b) is a longitudinal sectional view taken along line EE, and (c) is a longitudinal sectional view taken along line FF.
FIGS. 7A and 7B show an operating state of the core wire storage tray used in the present invention, in which FIG. 7A is a partially enlarged side view, and FIG.
8 is an enlarged detail view of a part of the example of FIG. 4, where (a) is a plan view thereof, (b) is a longitudinal sectional view taken along the line GG, and (c) is a longitudinal sectional view taken along the line HH. It is.
FIGS. 9A and 9B show a cord retainer used in the present invention, wherein FIG. 9A is a side view, FIG. 9B is a bottom view, FIG. 9C is a side view, and FIG. .
FIGS. 10A and 10B show a cable gripper used in the present invention, wherein FIG. 10A is a front view thereof, FIG. 10B is a partially cut plan view, FIG. 10C is a side view, and FIG. It is a longitudinal cross-sectional view.
11A and 11B show tension member fixing brackets used in the present invention, in which FIG. 11A is a plan view thereof, FIG. 11B is a front view thereof, and FIG. 11C is a longitudinal sectional view taken along line KK.
12A and 12B show a lid case used in the present invention, in which FIG. 12A is a plan view, FIG. 12B is a front view, and FIG. 12C is a side view.
[Explanation of symbols]
1 Fixing Case 2 Lid Case 3 Cable Routing Hole 4 Tension Member Fixing Bracket 5 Ring
6 Mounting plate
7 Concavity and convexity fitting part
8 Locking claws
9 mounting tongues 10 cord storage tray 10 1 tray lid 11 core winding portions 12 connector holding portion 13 core-guiding join the club 14 coupling pin 15 the arm 16 bearing 16 1 fitting hole 17 engaging portion 18 to be engaged portion 19 Core wire presser piece
20 Spring piece
21 Ribs
22 Partition wall
23 Knob 30 Flexible plate 31 Slit
32 Thin wall
33 Insertion hole
34 Groove
35 Fitting part
36 Locking hole
37 Fitting part
38 Fitting locking portion 40 Core wire insertion groove 41 Tension member insertion hole 42 Tension member stator
43 Lock recess
43 1 Lock projection
47 Different diameter insertion hole
48 Elastic core presser foot

Claims (3)

ケーブル心線を巻き付ける心線巻回部11と、心線接続用のコネクタ保持部12とを備えた心線収納トレイ10を有する固定ケースに蓋ケースを摺動自在に組み付けると共に、前記固定ケースに形成したケーブル配索孔から光ファイバ心線とテンションメンバを有する複数の光ケーブルを導入し、該テンションメンバを固定ケースに設けたテンションメンバ固定金具に止着して光ファイバ心線を互いに接続するケーブルアクセスボックスにおいて、前記心線収納トレイ10に形成した心線導出入部13の心線導出入軸方向と同心に心線収納トレイ10の連結ピン14を取付アーム15を介して設け、該連結ピン14を固定ケースにある支承部16の嵌合孔16 に回動自在で、かつ着脱自在に配備すると共に、前記取付アーム15に、位置固定用の凹状係止部17を複数備え、各凹状係止部17を前記支承部16に形成した凸状係止部18に係脱自在に配備され、さらに前記固定ケース1の内面両サイドに前記心線収納トレイ10の支承部16を一対対向して備え、該支承部16の嵌合孔16 の位置を上下方向に段差をつけて複数形成して前記心線収納トレイ10を観音開きできるように連結していることを特徴とするケーブルアクセスボックス。A lid case 2 is slidably assembled to a fixed case 1 having a core wire storage tray 10 provided with a core wire winding portion 11 for winding a cable core wire and a connector holding portion 12 for connecting a core wire, and the fixing A plurality of optical cables having an optical fiber core wire and a tension member are introduced from a cable routing hole 3 formed in the case 1 , and the tension member is fixed to a tension member fixing bracket 4 provided in the fixing case 1 to be optical fiber cores. in cable access box for connecting a line to one another, the connecting pin 14 of the cord storage tray 10 to the core-guiding Nyujiku direction concentric with the core wire storage tray 10 to form the core-guiding join the club 13 through the mounting arm 15 provided, pivotable fitting hole 16 1 of the support portion 16 with the connecting pin 14 to the fixed case 1, and thereby removably deployed, the mounting arm 15 is provided with a plurality of concave locking portions 17 for position fixing, and each concave locking portion 17 is detachably disposed on a convex locking portion 18 formed on the support portion 16. comprising a bearing portion 16 of the core wire storage tray 10 on the inner surface sides by a pair opposing, the core wire storage tray to multiply formed stepped positions of the fitting hole 16 1 of the said supporting Seung portion 16 in the vertical direction A cable access box characterized by being connected so that 10 can be opened . 前記ケーブル配索孔3が、前記固定ケース1に着脱自在に嵌着される可撓性板30に複数並列して備えられたスリット31のある挿通孔であって、該挿通孔中に切除可能の薄肉壁32を有している請求項1記載のケーブルアクセスボックス。The cable routing hole 3 is an insertion hole having a plurality of slits 31 provided in parallel with a flexible plate 30 that is detachably fitted to the fixed case 1 and can be excised in the insertion hole. The cable access box according to claim 1, comprising a thin wall. 前記テンションメンバ固定金具4が、複数の心線挿入用凹溝40と、各凹溝40の両サイドにテンションメンバ挿通孔41と、各挿通孔41に突没自在に設けたテンションメンバ固定子42とを備えたものである請求項1または2記載のケーブルアクセスボックス。The tension member fixing metal fitting 4 includes a plurality of core wire insertion grooves 40, tension member insertion holes 41 on both sides of each of the groove grooves 40, and tension member stators 42 provided so as to protrude and retract in the insertion holes 41. The cable access box according to claim 1 or 2, further comprising:
JP30082996A 1996-10-28 1996-10-28 Cable access box Expired - Lifetime JP3914290B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30082996A JP3914290B2 (en) 1996-10-28 1996-10-28 Cable access box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30082996A JP3914290B2 (en) 1996-10-28 1996-10-28 Cable access box

Publications (2)

Publication Number Publication Date
JPH10133031A JPH10133031A (en) 1998-05-22
JP3914290B2 true JP3914290B2 (en) 2007-05-16

Family

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Family Applications (1)

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