JP4104513B2

JP4104513B2 - Optical cable connection closure

Info

Publication number: JP4104513B2
Application number: JP2003324330A
Authority: JP
Inventors: 光治越山; 育也鶴田; 恭真野; 哲明青野; 竜也石原; 悦男田辺; 健長谷川; 雅史粟森; 正弘橋口; 安博山内; 和俊高見沢
Original assignee: Nippon Telegraph and Telephone Corp; Japan Communication Accesories Manufacturing Co Ltd
Current assignee: Nippon Telegraph and Telephone Corp; Japan Communication Accesories Manufacturing Co Ltd
Priority date: 2003-09-17
Filing date: 2003-09-17
Publication date: 2008-06-18
Anticipated expiration: 2023-09-17
Also published as: JP2005091689A

Description

本発明は、通信ケーブル、特に、光ファイバ心線を有する光ファイバケーブル（以下光ケーブル）の架空ケーブルの配線区間のアクセス区間において、ケーブル接続点における外被接続並びに架空ケーブルとドロップ光ケーブルの接続のために用いられ、加入伝送路設備、特に加入区間の光ケーブルの使用上の細分化を可能にして、光ケーブル設備の相互接続において、光ケーブルの布設に寄与させ、その心線使用効率と、経済的使用を高めると共に、加入者発生時の配線作業の簡便化と作業性をも向上させ、しかも分岐用心線と通過用心線を個別に収納、配置して工事の安全性を高めるための光ケーブル接続用クロージャに関するものである。 In the access section of the wiring section of an aerial cable of a communication cable, in particular, an optical fiber cable (hereinafter referred to as an optical cable) having an optical fiber core wire, for the jacket connection at the cable connection point and the connection of the aerial cable and the drop optical cable It is possible to subdivide the use of the transmission line equipment, especially the optical cable in the joining section, and to contribute to the laying of the optical cable in the interconnection of the optical cable equipment. An optical cable connection closure for improving the safety of the construction by improving the wiring work at the time of subscriber occurrence and improving the workability, and also storing and arranging the branching core and the passing core separately. Is.

従来より、光ケーブルの分岐、引込、接続などを行う場合、クロージャ内においてケーブル心線相互を接続すると共に、ケーブル心線の余長分を収納するための心線接続余長収納ケースが用いられている。このケースは、心線トレイからなり、トレイ本体に心線を導出入する部分となる心線導出入部と、その心線導出入部から導出入させる幹線用光ケーブルから引き出された光ファイバ心線同士或いは分岐用光ケーブルから引き出された心線とを接続するコネクタ等の接続部が収納されるコネクタ収納部と、さらに接続された心線の余長部分を巻回して保護収納する心線余長収納部とを備えたものが知られている。 Conventionally, when branching, drawing in, connecting, etc. of optical cables, a cable connection extra length storage case is used to connect the cable cores to each other in the closure and to store the extra length of the cable cores. Yes. This case is composed of a core tray, and a core wire lead-in / out part which is a part for leading / leaving a core wire to / from the tray main body, and optical fiber core wires drawn out from a trunk optical cable led out / in from the core wire lead-in / out part or A connector housing for storing connectors such as connectors for connecting the core wire drawn from the branching optical cable, and a core wire extra length storage portion for winding and protecting the extra length of the connected core wire. The one with is known.

特許文献１の光ケーブル接続クロージャは、心線導出入部から入る心線相互を接続したコネクタのコネクタ収納部と、心線の余長部分を巻回して保護収納する心線余長収納部とのある収納トレイを複数枚多段に積み重ねて配備したもので、各収納トレイをヒンジピンとピン軸受け部とで回動自在に連結した構成が開示されている。（特許文献１参照）
特開２０００ー１２１８４０号公報 The optical cable connection closure of Patent Document 1 has a connector housing portion for connecting the core wires entering from the core wire lead-in / out portion, and a core wire extra length housing portion for winding and protecting the extra length portion of the core wire. There is disclosed a configuration in which a plurality of storage trays are provided in a stacked manner and each storage tray is rotatably connected by a hinge pin and a pin bearing portion. (See Patent Document 1)
JP 2000-121840 A

一般に、光ケーブルを用いた通信網では、光アクセス網の最適な配線形態とすることやインターネットアクセスサービスなどを提供するため、既存の光ケーブル設備を利用して、光アクセスサービスを迅速且つ安価に提供することが要請されている。
ところが、光ケーブルクロージヤ１個配ルートに於ける光加入者数は、実設備心線数に対し数％以下であり、また光加入者数は個配ルート中に散発的に発生する散発需要のため極めて効率が悪く、しかも光ケーブル設備の相互接続には、収容ケーブルの保守や心線監視などのセキュリティの問題で、光アクセス系設備の効率的な使用や経済的な使用が十分満足するものがなく、取扱いも不便になって、光アクセス系設備の効率的な使用や経済的な使用ができないなどの問題がある。
さらに、光ケーブルの高密度、多心化が進むにつれて心線余長収納部では、その容量が不足しがちになり、クロージャ内での多数枚配備される心線トレイの多様化で分岐心線の取扱いがやっかいとなり、任意の心線ハンドリングも手数がかかり、また心線余長の納まりが悪くなって、心線にストレスが掛ることが多かったり、心線の光損失が生じ伝送特性に悪影響を与えたり接続分岐に伴う作業や個別配線整理がやりにくいし、さらには増設も簡単には対応できず構造が大型化、複雑化し、コスト高となり、軽量でコンパクト化できないといった問題も生じている。 In general, in a communication network using an optical cable, an optical access service is provided quickly and inexpensively using an existing optical cable facility in order to provide an optimal wiring form of the optical access network and an Internet access service. It is requested.
However, the number of optical subscribers in a single optical cable closure route is less than a few percent of the actual number of core wires, and the number of optical subscribers is the sporadic demand generated sporadically in the individual route. As a result, the efficiency of the optical access equipment is sufficiently low, and the interconnection of the optical cable equipment is sufficient for efficient and economical use of the optical access system equipment due to security issues such as maintenance of the housing cable and monitoring of the core wire. In addition, there are problems such as inconvenience in handling and inability to use optical access equipment efficiently and economically.
Furthermore, as the density of optical cables increases and the number of cores increases, the capacity of the extra cable length storage section tends to be insufficient. Handling is troublesome, handling of any core wire is troublesome, and the extra length of the core wire is poor, and stress is often applied to the core wire. It is difficult to perform work related to giving or connecting branches and individual wiring arrangements, and further, expansion cannot be easily handled, and the structure becomes large and complicated, the cost is high, and the light weight cannot be reduced.

本発明は、これら従来の事情に鑑みてなされたものであり、より効率的に光ケーブルを配線、布設、運用するために単心単位での引き落としが可能で心線使用効率を高められ、加入伝送路設備、特に、加入区間光ケーブルの使用上の細分化を経済的に可能にして光加入者の散発需要へ迅速に対応でき、既存の光ケーブルの設備を利用した光アクセスサービスを迅速且つ安価に提供することができるし、その配線作業実施による設備事故などもないように、単心の分離、保護、収納作業に優れたクロージャとすること、さらに配線、接続作業の簡易化が図れ、単心線ごとの接続機能と引き落とし機能とを統合して整理でき、その収納にも引き落し用心線と通過用心線を個別収納シートによって個別収納、配置して、光ケーブルの伝送特性に悪影響を与えることもなく、また光ケーブルのドロップ接続や切り替え或いは分岐接続作業並びに再収納作業が容易に実施できるし、複数接続単位で複層化とした高密度収納構造によって、心線ごとの収納や、引き通し配線の収納整理のほか心線ごとの増設も容易で、きわめてコンパクトに配線処理部を安全に収納することができる取扱い簡便な光ケーブル接続用クロージャを安価な形態で提供することを目的とするものである。 The present invention has been made in view of these conventional circumstances. In order to more efficiently route, lay and operate an optical cable, it is possible to pull it out in a single-core unit, and the use efficiency of the core can be improved, and the subscription transmission is performed. It is possible to economically subdivide the use of optical equipment, in particular, the optical cable of the subscriber section, and quickly respond to the sporadic demand of optical subscribers, and provide optical access services using existing optical cable equipment quickly and inexpensively. It is possible to make the closure excellent in separation, protection and storage of single cores, and to simplify wiring and connection work so that there is no equipment accident due to the wiring work, and single core wire organize and integrate the connectivity features with debit function each, the housing also debit core wire and passing core wire individually housed by individual accommodating sheet, place, adverse to the transmission characteristics of the optical cable In addition, optical cable drop connection, switching or branch connection work and re-storing work can be easily carried out. The purpose is to provide an easy-to-handle optical cable connection closure in an inexpensive form that can be easily accommodated in addition to the storage and arrangement of through wires, and can be safely stored in an extremely compact wiring processing section. Is.

上述の課題を解決するために、本発明は、光ケーブルを把持する把持部材を有するケーブル導出入部を備え、該ケーブル導出入部から導出入する心線相互を接続した接続部を支持する接続部収納部と、接続部から延びる心線余長を巻回して収納する心線余長収納部とを形成した心線収納トレイを少なくとも一つ以上備えたクロージャ本体にカバー体を着脱自在に配備した光ケーブル接続用クロージャにおいて、前記クロージャ本体に複数枚の心線収納トレイを嵌装できる嵌合部のあるトレイホルダーを形成した最下層通過心線収納トレイを設け、該トレイホルダーの嵌合部に少なくとも一つ以上の心線収納トレイを嵌脱自在に備え、前記最下層通過心線収納トレイの上方に複数枚の心線収納トレイを上層トレイとしてそれぞれ回動自在に多段に積層配備しうるように構成すると共に、最下層通過心線収納トレイの中央部に引き落し用心線と通過用心線を無切断にて別個に収納する心線収納シートの複数枚をそれぞれ回動自在に装着したものである。 In order to solve the above-described problems, the present invention includes a cable lead-in / insertion portion having a gripping member that grips an optical cable, and a connection portion storage portion that supports a connection portion that connects the core wires led out / in from the cable lead-in / out portion. And an optical cable connection in which a cover body is detachably arranged on a closure body having at least one core wire storage tray formed by winding and storing a core wire surplus length extending from the connecting portion. In the closure for use, a lowermost passing core wire storage tray in which a tray holder having a fitting portion capable of fitting a plurality of core wire storage trays to the closure body is formed, and at least one of the fitting portions of the tray holder is provided in the fitting portion of the tray holder. The above-described core wire storage trays are detachably provided, and a plurality of core wire storage trays are provided as upper layer trays above the lowermost layer passing core wire storage tray so as to be rotatable in multiple stages. Together configured to be stacked deployed freely plurality of cores accommodating sheet separately housed at the lowermost passage cord storage tray of the central portion to the debit core wire and passing core wire-free cutting each rotation It is attached to.

本発明の光ケーブル接続用クロージャは、少単心架空光ケーブルを各方路に適当なスパン毎に先行配置して置くが、クロージャ内では引き落し用心線と通過用心線を無切断にて個別の心線収納シートに収納してあるので、光加入者発生時には、引き落とし用心線を切断してドロップケーブルと接続すればよく、加入者ごとの引き落とし用心線の接続余長部分を保護収納する複数枚の心線収納トレイが、互いに分離されて収納できるので、任意の心線収納トレイを開いて或いは取り出したりして、引き通し心線から分岐した心線ドロップの接続作業や接続状況の点検、確認、調整などをきわめて容易で安全に行うことができる。
また、各心線収納トレイは、心線接続部のコネクタを保持固定し、心線余長も曲率半径を確保した上で取り回し収納できるので、心線余長の吸収に自由度を持たせて納められ、伝送特性に悪影響を及ぼすことがない。しかも、心線接続作業後に心線収納トレイを元の位置に戻しても光ファイバ心線に弛みが生じないし、心線に過度に屈曲することがなく曲率半径の小さい円弧状部分をも生じないで収納でき安全な保護ができる。
さらに、通過用心線は個別に１心ごと心線収納シートに収納して整理できるし、各心線収納トレイはトレイホルダーに挿し込むことで隣接される心線収納トレイと整理でき、またトレイホルダーから外して開閉することにより、連結した心線収納トレイを別個に露出することができ、接続作業や心線収納トレイの更新並びに増設が容易にできるし、簡易な心線識別とハードトレイ化による安全性向上と任意心線の取り出し、接続、再収納作業に対するハンドリング特性の向上とが図れる。 The closure for connecting an optical cable of the present invention places a small number of single-core overhead optical cables in advance in each path in appropriate spans. In the closure, the pull-down core wire and the passing core wire are individually separated without cutting. because are housed in the core wire receiving sheet at the time of optical subscriber occurs may be connected to the drop cable is cut debit core wire, a plurality of protecting houses the connection excess length portion of the debiting core wire of each subscriber Because the core wire storage trays can be stored separately from each other, any core wire storage tray can be opened or removed to connect the core drop dropped from the lead-through core wire and to check and confirm the connection status Adjustments can be made very easily and safely.
In addition, each core wire storage tray holds and fixes the connector of the core wire connection portion, and the core wire extra length can be handled and stored with a radius of curvature secured, so that the flexibility of absorption of the extra core wire length is given. The transmission characteristics are not adversely affected. In addition, even if the core wire storage tray is returned to its original position after the core wire connection work, the optical fiber core wire does not become slack, does not bend excessively to the core wire, and does not generate an arc-shaped portion with a small radius of curvature. Can be stored in a safe protection.
Furthermore, the passing cores can be stored individually in the core storage sheet, and each core storage tray can be arranged with the adjacent core storage tray by inserting it into the tray holder. By opening and closing the unit, the connected core wire storage trays can be exposed separately, making it easy to connect and renew and add the core wire storage trays. It is possible to improve safety and to improve handling characteristics for taking out, connecting and re-storing an arbitrary core.

本発明での光ケーブル接続用クロージヤにおいは、前記複数枚の心線収納シートのうち最上段にある心線収納シートと心線収納トレイとの間にソフトシート材からなる心線保護シートを回動自在に介在配備して、心線収納シートと心線収納トレイとを離隔するのが整理をし易くできる。
また、光ケーブルを把持する把持部材を挿入できる収容部を格子状に突設した複数の板状壁部で形成したケーブル導出入部を両端に備えた把持具ベースを前記クロージャ本体に備えた最下層通過心線収納トレイの心線導入部に対設し、該把持具ベースに形成した一対の爪受け部に前記最下層通過心線収納トレイに形成した固定爪を係合してクロージャ本体に装着すれば、各トレイ並びに心線収納シートの位置決め組み込み配備を簡略化できる。 Optical cable connecting Kurojiya odor of the present invention, the rotary core wire protective sheet made of soft sheet material between the core wire receiving sheet and the cord storage tray at the top of the plurality of cores accommodating sheet Arranging freely and separating the core wire storage sheet and the core wire storage tray can facilitate the arrangement.
In addition, the closure body is provided with a gripper base provided at both ends with cable lead-in / out portions formed by a plurality of plate-like wall portions projecting in a grid shape into which a gripping member for gripping an optical cable can be inserted. A fixed claw formed on the lowermost passing core wire storage tray is engaged with a pair of claw receiving portions formed on the gripper base so as to be opposed to the core wire introduction portion of the core wire storage tray and attached to the closure body. For example, the positioning and installation of each tray and the core wire storage sheet can be simplified.

さらに、前記トレイホルダーとしては、最下層通過心線収納トレイに一体に成形されるが、離隔して突設した一対のリブ状支持壁からなり、このリブ状支持壁に階段状壁面を設け、該階段状壁面に前記心線収納トレイに設けた支軸を回動自在に嵌着できる支軸受け部をそれぞれに形成すると共に、前記心線収納トレイに設けたストッパ軸を嵌着できるストッパ軸受け部を前記リブ状支持壁の間に備えた構成とすると、前記心線収納トレイを少しづつずらせて収納でき、識別容易な形態として心線展開時にも取扱いし易く、かつ開放状態を所定角度に保って維持できる。
なお、前記心線収納シートは、プラッスチック材或いはゴム材からなる薄膜の略楕円状シートからなり、離隔して形成した窓孔に突設した心線係止片が隣接される心線収納シートに形成される心線係止片の位置とずれた位置にあるように備えられ、シート中央部に指を掛け易くするための開閉操作用穴と、シート両端部に心線収納範囲を規制する認知孔とを設けて、収納される引き通し心線の整理や挿入作業を容易になるように考慮するのがよい。 Furthermore, as the tray holder, it is integrally formed with the lowermost passing core wire storage tray, but comprises a pair of rib-like support walls projecting apart, and a step-like wall surface is provided on the rib-like support wall, Stopper bearing portions that can be respectively fitted with support shaft portions that can rotatably fit the support shafts provided on the core wire storage tray on the stepped wall surface, and that can be fitted with stopper shafts provided on the core wire storage tray. Is provided between the rib-shaped support walls, the core wire storage tray can be stored with a slight shift, and can be easily handled as a form for easy identification even when the core wire is deployed, and the open state is maintained at a predetermined angle. Can be maintained.
The core wire storage sheet is formed of a thin film substantially oval sheet made of a plastic material or a rubber material, and the core wire storage sheet is adjacent to a core wire locking piece protruding from a separately formed window hole. Opening / closing operation hole to make it easy to put a finger on the center of the seat, and recognition to regulate the core wire storage range at both ends of the seat. It is preferable to provide a hole so as to facilitate the arrangement and insertion work of the passing through cords to be stored.

本発明の光ケーブル接続用クロージヤでは、前記心線収納トレイが、該心線収納トレイ内に導出入する光ケーブル単心線を保持する心線係止片と、該心線相互を接続した接続部を支持する接続部収納部と、接続部から延びる心線余長を巻回して収納する心線余長収納部とを形成したプラッスチックケースで構成したものからなり、その収納面が上を向く状態でクロージャ本体に任意にセットできるようにして、配線作業の簡略化を図るようにするのが好ましい。 In the optical cable connection closure according to the present invention, the core wire storage tray includes a core wire locking piece for holding a single optical cable lead into and out of the core wire storage tray, and a connection portion connecting the core wires to each other. It consists of a plastic case formed with a connecting part storage part to support, and a core wire extra length storage part that winds and stores the extra length of the core wire extending from the connection part, with its storage surface facing up It is preferable that the wiring work can be simplified by arbitrarily setting the closure body.

さらに、前記クロージャ本体には、筐体の左右の両外側壁に対称位置に軸受け部を設け、該軸受け部に嵌装するヒンジ軸を前記カバー体に対設して、カバー体をひっくりかえしてクロージャ本体の両側のいずれかに選択して取り付けられる連結構成とすると共に、カバー体をクロージャ本体にロックしうる留め具がカバー体に突設した案内係合片に摺動自在に配備されていて、前記カバー体を前記クロージャ本体に取付られるようにして、配線作業スペースの確保が簡単で作業性を向上し、取扱いの簡便化とクロージャの小型化を図れる。
また、前記クロージャ本体に固定ネジによって固着される取付板を介して支持線取付具を備え、該支持線取付具に、把持用溝のある一対の把持部材が対面されてボルトにより締めつけられ支持線を把持して固定配備できるように構成して、吊り線である支持線の線径の大小に係わらず、吊り線にクロージャ本体を確実に固定配置できる。 Further, the closure body is provided with bearing portions at symmetrical positions on the left and right outer walls of the housing, and a hinge shaft fitted to the bearing portion is provided opposite to the cover body so that the cover body is turned over. with the selected connection is mounted configuration to one of the sides of the body, and fastener capable of locking the cover body to the closure body it has been deployed slidably guide engagement piece projecting from the cover member, Since the cover body can be attached to the closure body, it is easy to secure a wiring work space, improve workability, simplify handling, and reduce the size of the closure.
In addition, a support wire fixture is provided via a mounting plate fixed to the closure body by a fixing screw, and a pair of gripping members having gripping grooves are faced to the support wire fixture and tightened by bolts. The closure body can be securely fixed and arranged on the suspension line regardless of the diameter of the support line that is the suspension line.

本発明は、クロージャ本体にカバー体を着脱自在に配備した光ケーブル接続用クロージャにおいて、前記クロージャ本体に複数枚の心線収納トレイを嵌装できる嵌合部のあるトレイホルダーを形成した最下層通過心線収納トレイを設け、該トレイホルダーの嵌合部に少なくとも一つ以上の心線収納トレイを嵌脱自在に備え、前記最下層通過心線収納トレイの上方に複数枚の心線収納トレイを上層トレイとしてそれぞれ回動自在に多段に積層配備しうるように構成すると共に、最下層通過心線収納トレイの中央部に引き落し用心線と通過用心線を無切断にて別個に収納する心線収納シートの複数枚をそれぞれ回動自在に装着したことにより、効率的に光ケーブルを配線、布設、運用するために単心単位での引き落としが可能で心線使用効率を高められ、加入伝送路設備、特に、加入区間光ケーブルの使用上の細分化を経済的に可能にして光加入者の散発需要へ迅速に対応でき、既存の光ケーブルの設備を利用した光アクセスサービスを迅速且つ安価に提供することができる。 The present invention relates to a closure for connecting an optical cable in which a cover body is detachably arranged on a closure body, and a lowermost passage center in which a tray holder having a fitting portion capable of fitting a plurality of core wire storage trays to the closure body is formed. A wire storage tray is provided, and at least one core wire storage tray is detachably provided in a fitting portion of the tray holder, and a plurality of core wire storage trays are provided above the lowermost layer passing core wire storage tray. The tray is configured so that it can be rotated and stacked in multiple stages as a tray, and the core wire storage that separates the core wire for passing through and the core wire for passing separately without cutting into the center of the lowermost passing core wire storage tray Ri by a plurality of sheets to be respectively rotatably mounted, effectively interconnect the optical cable laying, the can and core utilization debited with single core unit to operate high In addition, it is possible to subdivide the usage of the subscription transmission line equipment, especially the optical fiber of the subscription section economically, and respond quickly to the sporadic demands of optical subscribers, and the optical access service using the existing optical cable equipment can be quickly In addition, it can be provided at low cost.

また、本発明では、光ケーブルのドロップ配線や増設、保守点検の配線作業実施による設備事故もないように、単心の分離、保護、収納作業に優れたクロージャとすること、さらに配線、接続作業の簡易化が図れ、単心線ごとの接続機能と引き落とし機能とを統合して整理でき、その収納にも引き落としの分岐用心線と通過用心線を個別収納配置して、光ケーブルの伝送特性に悪影響を与えることもなく、また光ケーブルのドロップ接続や切り替え或いは分岐接続作業並びに再収納作業が容易に実施できるし、複数接続単位で複層化とした高密度収納構造によって、心線ごとの収納や、引き通し配線の収納整理のほか心線ごとの増設も容易で、きわめてコンパクトに配線処理部を安全に収納することができる。しかも、光ケーブルの引き落しの際に複数の心線収納トレイは心線導出入部より光ケーブルの伝送特性に悪影響を与えることなく、光ケーブルの接続や切り替え或いは分岐接続作業や再収納作業が容易に実施でき、複数接続単位で複層化とした高密度収納構造によって、心線ごとの収納や整理のほか、心線ごとの増減が簡易にでき増設も楽で、きわめてコンパクトに接続部を安全に収納することができるので、心線接続作業後に任意の心線収納トレイを開いて収納されている光ファイバ心線を迅速に引き落すことができ、心線識別も容易で接続部の再調整や修理など簡単に行うことができ、作業性を大幅に向上すると共に、各心線収納トレイを必要なだけ複数に積み重ねることができると共に、多段に積み重ねられた心線収納トレイ全体を的確に保持できて安全性も高められる。 In addition, in the present invention, a single-core closure, excellent protection and storage work can be achieved so that there is no equipment accident due to optical cable drop wiring, expansion, maintenance and inspection wiring work, and wiring and connection work. This simplifies and integrates and organizes the connection function and pull-out function for each single-core wire, and also separates the drop-purpose branch wire and the pass-through core wire into the storage, which adversely affects the transmission characteristics of the optical cable. It is easy to carry out drop connection, switching, branch connection work and re-storing work of optical cables, and a high-density storage structure that is multi-layered in units of multiple connections. In addition to storing and organizing through wires, it is easy to add each core wire, and the wiring processing section can be stored safely in an extremely compact manner. Moreover, when the optical cable is pulled down, the multiple optical fiber storage trays can easily perform optical cable connection, switching, branch connection work, and re-storage work without adversely affecting the optical cable transmission characteristics from the lead-in / out section. In addition to storing and organizing each core wire, the high-density storage structure with multiple connections in multiple connection units makes it easy to increase or decrease for each core wire, making expansion easy and storing the connection part extremely compact and safe. Therefore, it is possible to open any core wire storage tray after core wire connection work and quickly pull out the stored optical fiber core wire, easily identify the core wire and readjust or repair the connection. It is easy to carry out and greatly improves workability, and each core wire storage tray can be stacked as many as necessary, and the entire core wire storage trays stacked in multiple stages are targeted. Is also enhanced safety can be kept in the.

また本発明によれば、引き落し心線余長の収納が収まり良くできるし、心線の巻回収納にも余裕があり、しかも心線の保持も緩衝的に行なわれているので、心線に弛みが生じないし、各心線収納トレイを展開しても収納した光ファイバの余長部の長さの変化が少ないので、光ファイバの余長部の長さの変化が少なく、光ファイバ心線に無理な屈曲や小円弧が発生することなく光損失をなくして伝送特性を良好に保ことができる。 In addition, according to the present invention, the extra core wire can be accommodated in the retractable length, the cord wire can be wound and accommodated, and the core wire is held in a shock-absorbing manner. Since there is little change in the length of the extra length of the stored optical fiber even if each core wire storage tray is expanded, there is little change in the length of the extra length of the optical fiber, and the optical fiber core It is possible to maintain good transmission characteristics by eliminating optical loss without causing excessive bending or small arcs in the line.

さらに、本発明によれば、心線の分岐、引込の際に心線収納トレイへの心線導出入の自由度があって作業上、心線接続部へのアクセスが簡便化でき、管理や組立分解作業も容易に行なえ、かつ高密度・高信頼性が得られる。殊に、必要なだけ多段に積み重ねた心線収納トレイ同士が外れたりずれたりすることなく、簡単確実に結合されて識別容易で、光ケーブル接続用クロージャとして安全性を大幅に高められ、心線余長収納での高信頼性も得られるし、心線収納トレイ相互間をネジ止め等することなく脱着でき取扱いも著しく容易化でき、かつコンパクト化が図れる。 Furthermore, according to the present invention, there is a degree of freedom to lead and insert the core wire into the core wire storage tray when the core wire is branched and retracted. Assembly and disassembly work can be easily performed, and high density and high reliability can be obtained. In particular, the core storage trays stacked in multiple stages as much as necessary do not come off or shift, so that they can be easily and securely connected and easily identified, and the safety as a closure for connecting optical cables is greatly improved. High reliability in long storage can be obtained, and the core wire storage trays can be attached and detached without screwing or the like, so that handling can be greatly facilitated, and compactness can be achieved.

本発明の第１実施例を図面を用いて説明すると、図１乃至図４に示すように、光ケーブルＡを把持する把持部材Ｂを有するケーブル導出入部１を備え、該ケーブル導出入部１から導出入する心線相互を接続した接続部Ｃを支持する接続部収納部２と、接続部Ｃから延びる心線余長を巻回して収納する心線余長収納部３とを形成した心線収納トレイ４を少なくとも一つ以上備えたクロージャ本体５に、開閉扉となるカバー体６を着脱自在に配備した光ケーブル接続用クロージャＤにおいて、前記クロージャ本体５に引き落とし用心線を収納できる複数枚の心線収納トレイ４を嵌装できる嵌合部７のあるトレイホルダー８を形成した最下層通過心線収納トレイ４_１を設け、該トレイホルダー８の嵌合部に少なくとも一つ以上の心線収納トレイ４を嵌脱自在に備え、前記最下層通過心線収納トレイ４_１の上方に複数枚の心線収納トレイ４を上層トレイとしてそれぞれ回動自在に多段に積層配備しうるように構成すると共に、最下層通過心線収納トレイ４_１の中央部に引き落し用心線と通過用心線を無切断にて別個に収納する心線収納シート９の複数枚をそれぞれ回動自在に装着した構成からなっている。（図１） A first embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 to 4, a cable lead-in / out part 1 having a gripping member B for gripping an optical cable A is provided. The core wire storage tray in which the connection portion storage portion 2 that supports the connection portion C that connects the core wires to each other and the core wire extra length storage portion 3 that winds and stores the extra length of the core wire extending from the connection portion C is formed. In a closure D for optical cable connection in which a cover body 6 serving as an opening / closing door is detachably provided in a closure body 5 having at least one 4, a plurality of core wires can be stored in the closure body 5 the lowermost passage cord storage tray 4 ₁ formed with the tray holder 8 with a fitting portion 7 of the tray 4 can fit provided, the fitting portion of the tray holder 8 at least one of the core wire storage tray 4 Hamada' freely wherein the well as configured as above the lowermost passage cord storage tray 4 ₁ a plurality of core wires storage tray 4 can stack deployed on each rotatably multistage as an upper tray, the bottom layer It has a plurality of cords accommodating sheet 9 passing cord storage tray 4 ₁ and passing core wire debit core wire in the center separately accommodated without producing cut from each rotatably mounted configuration. (Figure 1)

前記光ケーブル接続用クロージャＤは、少単心架空ケーブルを各方路に適当なスパン毎に先行配置して置くが、クロージャ内では引き落し用心線と通過用心線を無切断にて個別の心線収納シート９に収納、例えば少単心光ケーブル（φ０．２５ｍｍの単心線８本）の場合、引き落とし用心線は１心を１トレイにて最大６心まで収納でき、通過用心線は１心単位で個別に心線収納シート９に最大８心まで収納してあるので、光加入者発生時には、引き落とし用心線を切断してドロップケーブルと接続し、接続部及び接続余長部分を心線収納トレイ４に収納すればよく、加入者ごとの引き落とし用心線の接続余長部分を保護収納する複数の心線収納トレイ４が、互いに分離されて収納できるので、任意の心線収納トレイ４を開いて或いは取り出したりして引き通し心線から分岐した心線ドロップの接続作業や接続状況の点検、確認、調整などをきわめて容易に安全に行うことができる。また、各心線収納トレイ４は、心線の接続部Ｃを保持固定し、心線余長も曲率半径を確保した上で取り回し収納できるので、心線余長の吸収に自由度を持たせて納められ、伝送特性に悪影響を及ぼすことがない。 In the optical cable connection closure D, a small number of single-core overhead cables are placed in advance in each path for each appropriate span. In the closure, the pull-down core wire and the passing core wire are separated into individual core wires without cutting. Stored in storage sheet 9, for example, in the case of a small single-core optical cable (8 Ø 0.25 mm single core wires), one core for pulling can be stored up to 6 cores in one tray, and one core for passing is one core Since a maximum of 8 cores are individually stored in the core wire storage sheet 9, when the optical subscriber is generated, the pulling core wire is cut and connected to the drop cable, and the connection portion and the connection excess length portion are connected to the core wire storage tray. 4, since a plurality of core wire storage trays 4 for protecting and storing connection lengths of the core wires for withdrawal for each subscriber can be stored separately from each other. Or take out Interest and pull through inspection of the connection work and the connection status of the heart line drop branched from the heart line, confirmation, can be carried out, such as the very easily and safely adjust. Further, each core wire storage tray 4 holds and fixes the connecting portion C of the core wire, and the core wire extra length can be handled and stored while ensuring the radius of curvature. The transmission characteristics are not adversely affected.

また、前記心線収納トレイ４に形成した心線導出入部４_２には、スリットのある心線挿通孔を設けた弾性保持部材（図示せず）を必要に応じ圧入嵌合して心線の支持を確実にしてあり、この弾性保持部材は心線径或いは心線数に応じた挿通孔のあるものを選んで用いられる。さらに、接続部収納部２及び心線余長収納部３は、必要に応じガイドリブ及び側壁を選んで区画してもよいし、心線の浮きを阻止する舌状の心線押え片２５，２６或いは係止爪を一体成形して余長の心線や心線の接続部Ｃとなるコネクタを心線収納トレイ４内に確実に保持できるようにするか、また接続部収納部２或いは心線余長収納部３のみを区画した心線収納トレイ４を組合せて一つとした形態としてもよく、各心線収納トレイ４毎に心線を分離整理収納し、ケーブル挿入部からファイバ心線の曲げが極少で心線収納時のねじれをも防止でき、安全かつ高密度収納で高信頼性が得られるようにする。 Further, wherein the core wire receiving tray 4 core-guiding join the club 4 ₂ formed, the elastic holding member provided with core wire insertion hole with a slit (not shown) to need depending press-fitted in the core Support is ensured, and this elastic holding member is selected and used with an insertion hole corresponding to the core wire diameter or the number of core wires. Further, the connection portion storage portion 2 and the core wire extra length storage portion 3 may be divided by selecting guide ribs and side walls as necessary, or tongue-shaped core wire presser pieces 25 and 26 that prevent the core wire from floating. Alternatively, the locking claws are integrally formed so that the extra length of the core wire and the connector that becomes the connection portion C of the core wire can be securely held in the core wire storage tray 4, or the connection portion storage portion 2 or the core wire The core wire storage trays 4 that divide only the extra length storage portion 3 may be combined into one, and the core wires are separated and stored separately for each core wire storage tray 4, and the fiber core wire is bent from the cable insertion portion. Therefore, it is possible to prevent twisting when storing the core wire, and to obtain high reliability with safe and high-density storage.

この場合、前記最下層通過心線収納トレイ４_１のケーブル導出入部１から引き込み或いは引き出される光ケーブルＡをドロップ光ケーブルと接続できるように把持部材Ｂを介して固定できるように備え、ドロップ光ケーブルに応力が掛かっても把持部材Ｂで受けて前記心線収納トレイ３に悪影響を及ぼさないようにしている。
前記クロジャ本体５にはケーブル導出入部１に対面する開口した部分（隙間）にはグロメット５_１を備え、ケーブルを自由に配線し、配線しない部分は遮蔽部分を残して蓋をした状態に維持して用いられ、防塵、防風並びに防水に役立ててあって、布設作業がしやすく、低コストで封入作業が行えるようになっている。 In this case, the optical cable A drawn in or drawn out from the cable lead-in / out part ₁ of the lowermost passing core wire storage tray 41 can be fixed via the holding member B so that it can be connected to the drop optical cable, and stress is applied to the drop optical cable. Even if it is hung, it is received by the gripping member B so that the core wire storage tray 3 is not adversely affected.
The closure body 5 is provided with a grommet 51 in the open portion (gap) facing the cable lead-in / out portion ₁ , and the cable is freely routed, and the non-wired portion is kept covered with a shielding portion remaining. It is used for dust-proofing, wind-proofing and waterproofing, and is easy to install and can be sealed at low cost.

前記心線収納トレイ４としては、各種の形態のものを用いられるが、一例として示すと、複数重合状態でそれぞれヒンジ部となる支軸１４によって開閉自在に連結されて一組とし、テープ心線から分離した単心ごとにコネクタと心線余長とを個別に一括収納できるトレイに構成されたものを用い、該心線収納トレイ４の複数枚を前記最下層通過心線収納トレイ４_１内に設けたトレイホルダー８に挿脱自在に嵌装してある。そして、この心線収納トレイ４、４_１は、合成樹脂により一体成形された成形品から構成したものであり、心線収納トレイ４では図２に示すように、略長方形状の外形を有し、内面側が同一形状に形成されたもので、心線の心線導出入部４_２と、心線の接続用コネクタが収容保持される接続部収納部２と、該接続部収納部２に保持された接続部Ｃのコネクタから導出される心線余長を引き廻し、ループ状に巻回させて保持する心線余長収納部３とをガイドリブ２４により区画して備え、かつ心線押え片２５，２６のある略長方形のトレイを用いる。 As the core wire storage tray 4, various types of forms are used, but as an example, a plurality of superposed states are connected to each other by a support shaft 14 serving as a hinge portion in a plurality of overlapped states to form a set of tape core wires. used as configured in the tray which can be individually collectively accommodating the connector and cord extra length for each single core separated from core wire receiving said plurality of trays 4 lowermost passage cord storage tray 4 ₁ Is detachably fitted in the tray holder 8 provided in the above. Then, the core wire receiving trays 4,4 _1, which consisted molded article which is integrally molded by synthetic resin, the core wire storage tray 4 as shown in FIG. 2, has a substantially rectangular outer shape , in which the inner surface is formed into the same shape, the core-guiding join the club 4 ₂ core wire, the connecting portion housing portion 2 connecting connector cord is housed and held, it is held in the connecting portion housing portion 2 A cord extra length storage portion 3 that is routed around the cord extra length led out from the connector of the connecting portion C and wound and held in a loop shape is partitioned by the guide rib 24, and the cord presser piece 25 is provided. , 26 with a substantially rectangular tray.

前記最下層通過心線収納トレイ４_１としては、クロージャ本体５内に取付けネジ４１で固着されるが、クロジャ本体５内に固着された、配線ガイドとなる板状壁部１１のある把持具ベース１２に対設する。該最下層通過心線収納トレイ４_１には、トレイホルダー８、例えばリブ状支持板が備えてある。また前記板状壁部１１により光ケーブルルートを明確に分け、光心線に影響を与えない構造となり、かつこの配線ガイドでより一層安全な配線ルートが確保でき作業性や安全性がさらに向上できる。 As the lowermost layer pass through cord storage tray 4 _1, but is fixed by mounting screws 41 to the closure body 5, fixed to the Kuroja body 5, gripper base with plate-like wall portion 11 serving as a wiring guide 12 to face. The outermost lower pass cord storage tray 4 _1, tray holder 8, for example are provided with a rib-like support plate. Further, the optical cable route is clearly divided by the plate-like wall portion 11 so as not to affect the optical core wire, and a safer wiring route can be secured by this wiring guide, and workability and safety can be further improved.

図２及び図３に示すように、前記心線収納トレイ４は、心線導出入部４_２を備え、心線相互を接続した接続部Ｃを収容支持する接続部収納部２と、該接続部Ｃから延びる心線余長を巻回して収納する心線余長収納部３とを形成し、前記最下層通過心線収納トレイ４_１に設けたトレイホルダー８に間隔をおいて複数配備して、各心線収納トレイ４は上方に回動して引き上げ、上面を開けて心線の収納、撤去作業を行い、作業終了後は心線収納トレイ４を元に戻して収納保持できるようにしてある。 As shown in FIGS. 2 and 3, the core wire storage tray 4 is provided with a core-guiding join the club 4 _2, the connecting portion housing portion 2 a connecting portion C, which connects the core wire cross-receiving and supporting, the connection portion forming a core excess length storage section 3 for storing wound core wire extra length extending from C, and a plurality of deployed at intervals on the tray holder 8, wherein provided in the lowermost layer pass through cord storage tray 4 ₁ Each of the core wire storage trays 4 is rotated upward to open, and the upper surface is opened to store and remove the core wires. After the work is completed, the core wire storage tray 4 can be returned to its original position and stored and held. is there.

なお、前記心線収納トレイ４において、接続部のある或いは接続部のない引き通し用心線収納のほかに、保留心線収納にも用いられ、特に接続部のある場合はトレイの中で固定せずに自由度を持たせて用いるのもよく、いずれにしても心線の曲率半径を十分に確保して接続部や心線余長の収納を確実にできるようにしてあり、上方に心線収納トレイ４を上げた時に、脱落防止のストッパ機能を心線押え片ではたらかせてもよい。 The core wire storage tray 4 is used not only for storing a core wire for passing through with or without a connection portion but also for storing a holding core wire, and in particular when there is a connection portion, it is fixed in the tray. It is also possible to use it with a certain degree of freedom, and in any case, a sufficient radius of curvature of the core is ensured to ensure that the connecting portion and the extra length of the core can be stored. When the storage tray 4 is raised, the stopper function for preventing the dropout may be operated by the cord holding piece.

さらに、最下層通過心線収納トレイ４_１では、その中央部に複数枚の心線収納シート９を回動自在に装着した構成からなっているが、前記心線収納シート９のうち最上段にある心線収納シート９と心線収納トレイ４との間にソフトシート材からなる心線保護シート１０を回動自在に介在配備して、心線収納シート９と心線収納トレイ４とを離隔して心線整理をし易くしてある。また、光ケーブルＡを把持する把持部材Ｂを挿入できる収容部は、格子状に突設した複数の板状壁部１１で形成したケーブル導出入部１を両端に備えた把持具ベース１２に備え、該ケーブル導出入部１を前記クロージャ本体５に備えた最下層通過心線収納トレイ４_１の心線導出入部１１に対設してある。この把持具ベース１２に形成した一対の爪受け部１３に前記最下層通過心線収納トレイ４_１に形成した固定爪１３_１を係合してクロージャ本体５に装着すれば、最下層通過心線収納トレイ４_１並びに心線収納シート９の位置決めができる。 Further, the lowermost layer pass through cord storage tray 4 _1, a plurality of cords accommodating sheet 9 is formed of a rotatably mounted with the structure, at the top of the core wire accommodating sheet 9 in its central part A core wire protection sheet 10 made of a soft sheet material is rotatably disposed between a certain core wire storage sheet 9 and the core wire storage tray 4 so that the core wire storage sheet 9 and the core wire storage tray 4 are separated from each other. This makes it easier to organize the mind. Further, the accommodating portion into which the grasping member B for grasping the optical cable A can be inserted is provided in the grasping tool base 12 provided at both ends with the cable lead-in / out portions 1 formed by a plurality of plate-like wall portions 11 protruding in a lattice shape, the cable lead join the club 1 are then oppositely arranged in the lowermost layer pass through cord storage tray 4 ₁ of core-guiding join the club 11 with the closure body 5. If mounted fixed claws 13 ₁ formed above the lowermost passage cord storage tray 4 ₁ to the pair of claw receiving portions 13 formed on the gripper base 12 to the closure body 5 engages, the lowermost layer pass through the core wire It can be positioned in the storage tray 4 ₁ and core wire accommodating sheet 9.

なお、前記心線収納シート９は、図４の如くプラッスチック材或いはゴム材からなる薄膜の略楕円状シートからなり、離隔して形成した一対の窓孔１８に夫々に突設した舌状の心線係止片１９が設けられる。そして、隣接される心線収納シート９に形成される心線係止片１９の位置は、順次ずれた位置にあるように備えられ、シート中央部に指を掛け易くするための開閉操作用穴２０と、シート両端部に心線収納範囲を規制する認知孔２１とを設けて、楕円形状に収納される引き通し心線を挟み込んで心線の整理や挿入作業を容易になるように考慮するのがよい。
この場合、複数枚重ねて夫々回動自在に配備される心線収納シート９は、それぞれその一側縁に綴り込み用の係止孔２２を左右に分けて一対形成して、前記最下層通過心線収納トレイ４_１に突設した係合止め部２３に係脱自在に取り付け保持するのが組み込み、取り外しが容易で配線作業時での取扱いを簡便化できるようにするのがよい。（図１及び図４） As shown in FIG. 4, the core wire storage sheet 9 is made of a substantially oval sheet made of a plastic material or a rubber material, and has a tongue-shaped core projecting from a pair of spaced apart window holes 18. A line locking piece 19 is provided. And the position of the core wire locking piece 19 formed in the adjacent core wire storage sheet 9 is provided so as to be sequentially shifted, and an opening / closing operation hole for making it easy to put a finger on the center portion of the sheet 20 and recognition holes 21 for restricting the core wire storage range are provided at both ends of the sheet so that the lead wires stored in an elliptical shape are sandwiched to facilitate the arrangement and insertion of the core wires. It is good.
In this case, a plurality of sheets of the core wire storage sheets 9 that are rotatably arranged are formed with a pair of binding holes 22 for binding at left and right sides, respectively, and passed through the lowermost layer. the engagement stopper portion 23 protruding from the core wire storage tray 4 ₁ detachably to incorporation to mounting the holding, it is preferable to make the handling at the time of easily removable wiring work be simplified. (FIGS. 1 and 4)

また、最下層通過心線収納トレイ４１としては、図５および図６に示すように一側縁にトレイホルダー８を一体に成形したもので、略楕円形状の外形を有し、その中央部と外周縁に沿ってガイドリブ４２、４３を立設して前記心線収納シート９の開閉操作用穴２０と心線収納シート９の外周縁とを嵌合挿入しうるようにして心線収納シート９を収納すると共に、両端部に心線導出入部１１，１１を形成して、該心線導出入部１１，１１に連なるケーブル経路４４によってケーブルを緩やかに旋回して引回し収納できるようにしてあって、ケーブル経路４４内に心線押さえ片４５と、複数枚の心線収納シート９を押さえるシート押え片４６とをガイドリブ４２、４３に設けた構成からなっている。 The lowermost passing core wire storage tray 41 is formed by integrally forming a tray holder 8 on one side edge as shown in FIGS. 5 and 6, and has a substantially elliptical outer shape, The guide wire 42, 43 is erected along the outer peripheral edge so that the opening / closing operation hole 20 of the core wire storage sheet 9 and the outer peripheral edge of the core wire storage sheet 9 can be fitted and inserted. In addition, the core wire lead-in / in portions 11 and 11 are formed at both ends so that the cable can be gently swung around and routed through the cable path 44 connected to the core wire lead-in / out portions 11 and 11. The guide ribs 42 and 43 are provided with a core wire pressing piece 45 and a sheet pressing piece 46 for pressing a plurality of core wire storage sheets 9 in the cable path 44.

さらに、前記トレイホルダー８としては、図５乃至図７に示すように、最下層通過心線収納トレイ４_１に一体に成形されるが、離隔して突設した一対のリブ状支持壁からなり、この支持壁に階段状壁面８_１を設け、該階段状壁面に前記心線収納トレイ４に設けた支軸１４を回動自在に嵌着できる支軸受け部１５をそれぞれに形成した嵌合部７を有すると共に、前記最下層通過心線収納トレイ４_１に設けたストッパ軸１６を嵌着できるストッパ軸受け部１７を前記リブ状支持壁の間のトレイホルダー８に備えた構成とすると、前記心線収納トレイ４を多段に積み重ねた時に少しづつずらせて収納でき、識別容易な形態として心線展開時にも取扱いし易く、かつ開放状態を所定角度に保って維持でき、所望の心線収納トレイ４をトレイホルダー８に支持し或いは引き出せ、重ね合せ面を開くことができて、収納心線の接続配線作業が容易にできる。
例えば、図５（ｃ）の如くトレイストッパ部の作用状態では、一つの心線収納トレイ４の単心トレイ閉時（ロック状態）、単心トレイ開時（開度６０度・ロック解除状態）、単心トレイ開放時（開度９０度・ロック解除状態）ができ、前記心線収納トレイ４を所定角度で開放維持並びに閉鎖維持することができ配線作業での作業性を向上でき、光心線に影響を与えない構造となり、かつこの配線ガイドでより一層安全な配線ルートが確保でき作業性や安全性がさらに向上できる。 Further, as the tray holder 8, as shown in FIGS. 5 to 7, but is molded integrally with the lowermost passage cord storage tray 4 _1, a pair of rib-like support wall which projects at a distance , a stepped wall ₈₁ provided in the support wall, the fitting portion forming the shaft receiving portion 15 that can fit the support shaft 14 provided on the core wire storage tray 4 to the staircase wall rotatably respectively together with 7, when the a configuration having a stopper bearing portion 17 capable of fitting the stopper shaft 16 provided in the lowermost layer pass through cord storage tray 4 ₁ to the tray holder 8 between the rib-shaped supporting wall, the heart When the wire storage trays 4 are stacked in multiple stages, the wire storage trays 4 can be stored in a slightly staggered manner, and can be easily handled even when the core wires are deployed, and the open state can be maintained at a predetermined angle. The tray holder Supporting or pulled out to, and can open the overlay surface, connection wiring work storage core can be easily.
For example, as shown in FIG. 5C, in the operation state of the tray stopper portion, when the single-core tray of one core wire storage tray 4 is closed (locked state), when the single-core tray is opened (opening degree 60 degrees, unlocked state). When the single-core tray is opened (opening degree 90 degrees / unlocked state), the core wire storage tray 4 can be maintained open and closed at a predetermined angle, and the workability in wiring work can be improved. The structure does not affect the wire, and with this wiring guide, a safer wiring route can be secured and the workability and safety can be further improved.

前記最下層心線収納トレイ４_１は、図７及び図８に示すように中央に取付け孔３０を有し、トレイホルダー８を把持具ベース１２の上に重ね合わせて心線導出入部１１を把持具ベース１２の板状壁部１１に対設して組み合わせクロージャ本体５に取付けネジ４１で固定するのがよく、該把持具ベース１２には取付け孔３１と、トレイホルダー８を係止する係止部材３２とを設けて、前記クロージャ本体５とトレイホルダー８との一体化が簡単にできるようにしてある。 The lowermost cord storage tray 4 ₁ has a mounting hole 30 in the center as shown in FIGS. 7 and 8, the tray holder 8 superimposed on the gripper base 12 grip the core-guiding join the club 11 It is good to fix to the plate-like wall portion 11 of the tool base 12 and fix it to the combination closure main body 5 with an attaching screw 41. The holding tool base 12 has an attachment hole 31 and a latch for engaging the tray holder 8. A member 32 is provided so that the closure body 5 and the tray holder 8 can be easily integrated.

なお、前記心線収納トレイ４，及び最下層通過心線収納トレイ４_１の心線導出入部４_２，１_１は、両側に設けたものに限らず、片側に設けたシングルタイプにしてもよいし、両側に対に設け、即ち四隅に設けたダブルタイプのものを用いることもできるし、しかも合成樹脂の射出成形により、心線収納トレイ４，４_１を略正方形、長方形の四角形または楕円形に形成されるので、前記接続部収納部２に隣接される心線余長収納部３には所定間隔に配列される心線押え片２５，２６および蓋片で伝送特性に悪影響が及ばないように心線がなめらかに湾曲したループ状に巻回保持できるように配慮してある。
例えば、前記心線収納トレイ４には曲率半径３０ｍｍ以上を確保して心線を取り回して収納ができ、各種の接続部Ｃ例えば、融着補強スリーブ、メカニカルスプライス、などの収納可能であって、心線収納トレイ４を複数並列或いは多段に積層し、各心線トレイ単位で開閉或いは脱着可能に設け、心線余長と心線接続部を一括収納できる。
この場合は、心線収納トレイ４の一つは接続部は固定しない構造として心線余長の吸収に自由度を持たせることもできるし、一つのトレイに８〜１２心線分の収納が可能で識別ホルダーを用いれば、複数心単位の心線識別が可能の形態とすることもできる。 Incidentally, the core wire storage tray 4, and the lowermost layer pass through cord storage tray 4 ₁ of core-guiding join the club 4 _2, 1 ₁ are not limited to those provided on both sides, may be single type provided on one side and, provided in pairs on both sides, i.e. it can either be used as a double type which is provided at the four corners, yet by injection molding of synthetic resin, cord storage tray 4,4 ₁ a substantially square, rectangular square or oval Therefore, the core wire presser pieces 25 and 26 and the cover pieces arranged at predetermined intervals in the core wire extra length storage part 3 adjacent to the connection part storage part 2 do not adversely affect the transmission characteristics. In order to keep the core wire in a smoothly curved loop shape, consideration is given.
For example, the core wire storage tray 4 can secure and store a curvature radius of 30 mm or more, and can store and store various connection parts C such as a fusion reinforcing sleeve, a mechanical splice, A plurality of core wire storage trays 4 are stacked in parallel or in multiple stages and provided so that each core wire tray can be opened, closed, or detached, so that the extra length of the core wires and the core wire connecting portion can be stored together.
In this case, one of the core wire storage trays 4 has a structure in which the connecting portion is not fixed, and can have a degree of freedom in absorption of the extra length of the core wire, or 8 to 12 core wires can be stored in one tray. If it is possible to use an identification holder, it is also possible to adopt a form in which a plurality of cores can be identified.

なお、前記心線導出入部４_２の一方側から心線を入れて心線余長収納部３に収納する場合、心線の巻回の仕方によって、両方の心線導出入部４_２のいずれの側にも出すこともできる。以上のように、いずれかの心線導出入部４_２から心線を心線収納トレイ４内に入れることができ、かつ心線の曲率を小さくすることなく（過負荷を加えることなく）、入口側となった心線導出入部４_２と同一の又は異なる心線導出入部４_２を出口側として出すことができる。これにより、心線の出入口側を自由に選んで、クロジャ本体５内での心線の配線の便宜を図ることができる。 Incidentally, from one side of the core-guiding join the club 4 ₂ when accommodating the core wire excess length accommodating portion 3 put core, the winding manner of the core wire, both core-guiding join the club 4 ₂ of any of the It can also be put out on the side. As described above, any one of core-guiding join the club 4 ₂ can put the cord to cord storage tray 4, and without reducing the curvature of the cord (without applying an overload), the inlet may issue the same core-guiding join the club 4 ₂ became side or different core-guiding join the club 4 ₂ as an outlet side. Thereby, it is possible to freely select the entrance / exit side of the core wire and to facilitate the wiring of the core wire in the closure body 5.

前記クロージャ本体５では、その両外側壁の対称位置に軸受け部５０を設け、該軸受け部５０に嵌装するヒンジ軸５１を前記カバー体６に対設して、カバー体６をひっくりかえしてクロージャ本体５の両側のいずれかに選択して取り付けられる構成とすると共に、カバー体６をクロージャ本体５にロックしうる留め具５２がカバー体６に突設した案内係合片５４に摺動自在に配備されていて、前記カバー体６を前記クロージャ本体５に取付られるようにして、クロージャ本体５に突設したストッパ片５３を案内係合片５４に対設してある。この留め具５２は、ストッパ片５３と案内係合片５４とに係合するように左右に摺動させてロック或いはロック解除できるようにし、カバー体６をひっくりかえして取り付けた際に、スライドサさせてロックできるようにするのがよい。
また、このクロージャＤは、前記クロージャ本体５に固定ネジ３３によって固着される取付板３４を介して支持線取付具３５を備え、該支持線取付具３５に、把持用溝３６のある一対の把持部材３７が対面されてボルト３８により締めつけられ支持線を把持して固定配備できるように構成するのが、架空ケーブルに布設し易くなってよい。 In the closure body 5, bearing portions 50 are provided at symmetrical positions on both outer walls thereof, and a hinge shaft 51 fitted to the bearing portions 50 is provided opposite to the cover body 6, and the cover body 6 is turned over to close the closure body. 5 with the selected and attached structure to one of the sides of the slidably deploy the cover body 6 to guide engagement piece 54 which fasteners 52 which may be locked to the closure body 5 projecting from the cover 6 In addition, a stopper piece 53 protruding from the closure body 5 is provided opposite to the guide engagement piece 54 so that the cover body 6 can be attached to the closure body 5. The fastener 52 is horizontally slid on to engage with the stopper piece 53 and the guide engaging piece 54 to be locked or unlocked, when mounted turned over the cover member 6, is slid Sa It should be possible to lock.
Further, the closure D includes a support line attachment 35 via an attachment plate 34 fixed to the closure body 5 by a fixing screw 33, and the support line attachment 35 has a pair of grips having gripping grooves 36. The configuration in which the member 37 faces and is fastened by the bolt 38 so that the support wire is grasped and fixedly arranged can be easily installed in the overhead cable.

以上の構成からなるクロージャＤは、少単心架空クロージャとして図９に示すような配線形態で用いられる。即ち、地下クロージャＤ_１から引き上げケーブルを電柱Ｅを経てＳＦＡＯクロージャＤ_２に接続配備して、該クロージャＤ_２から少単心架空光ケーブルＡを各方路に布設し、適当なスパン毎にクロージャＤを先行配置する。この少単心架空光クロージャＤ内では、引き落とし用心線と、通過用心線を無切断にて個別の心線収納シート９に収納できる。例えば、引き落とし用心線は１心１トレイの心線収納トレイ４にて収納（最大６心まで）通過用心線は、個別シートの心線収納シート９に１心単位に収納（最大８〜１２心まで）でき、加入者発生時には、引き落とし用心線を切断し、ドロップケーブルＡ_１と接続すればよい。 The closure D having the above configuration is used in a wiring form as shown in FIG. 9 as a small single-core aerial closure. That is, by connecting deploy the pulling cable from an underground closures D ₁ through the electric pole E to SFAO closure D _2, a small single-core overhead light cable A from the closure D ₂ was laid on each path, the closure D for each appropriate span Is placed in advance. In the small single-core overhead light closure D, the core wire for dropping and the core wire for passing can be stored in the individual core wire storage sheet 9 without cutting. For example, the core wire for pulling out is stored in the core storage tray 4 of one tray per core (up to 6 cores). The core wire for passing is stored in the core storage sheet 9 of individual sheets in units of one core (maximum 8 to 12 cores). up) can, at the time of the subscriber occurs, disconnect the debit core wire may be connected to the drop cable a _1.

この場合、少単心架空クロージャＤ内での配線工法では、図１０示す如く引き通し配線のケーブルの処理に、必要心線例えば、１，６００ｍｍ分のケーブル外被を剥ぎ、外被を処理した後、ケーブルＡに把持部材Ｂを装着して、該把持部材Ｂをケーブル導出入部１の板状壁部１１間の溝にセットする。
次いで、心線収納には、心線収納シート９をすべて開き、心線を個別に心線収納シート９に巻回して収納する。この際、心線収納シート９は心線を１心収納終了毎に閉じで順次収納するが、心線収納作業終了後心線保護シート１０を閉じて配線が終了する。（図１０ａ）
そして、発生した加入分の単心の心線収納トレイ４を収納面が上を向く状態で最下層通過心線収納トレイ４_１にセットし、開き状態にしたのち、ドロップケーブルの必要心線例えば、１，３５０ｍｍ分のケーブル外被を剥ぎ、外被を処理したのち、ドロップ用の把持部材を装着し、ケーブル導出入部１の板状壁部１１間の溝にセットする。
かくして、心線保護シート１０を開き、引き落としをする心線を心線収納シート９から引出し取り出す。ドロップをする心線を取り出したら心線収納シート９類をすべて閉じ、取り出した心線をセンターでカットしたのち、心線長７００ｍｍに調尺する。さらにカットした心線をドロップ心線と接続（メカニカルスプライス接続のみ）し、予めセットしておいた心線収納トレイ４に巻回して収納して整理することができる（図１０ｂ）。また、切断された残りの心線は、心線収納トレイ４内で保留される。
この場合、心線収納トレイ４内では、ドロップ心線にて略８の字配線をするが、把持具ベース１２においてドロップケーブルＡ_１を主ケーブル上流側と対称側の把持溝にセットした時（図１０ｂ）と、上流側と同側の把持溝にセットした時とは、トレイ内での配線ルートを変えることを配慮するのがよい。
なお、局所的需要においては、前記少単心架空ケーブルではクロージャＤを電柱Ｅの数本おきに先行設置する際に、クロージャでの引き通し用心線（最大８〜１２心）を個別収納設置することにより、長手方向に偏った局所的需要が発生しても柔軟に引き落とし対応することができる。 In this case, in the wiring method in the small single-core overhead closure D, as shown in FIG. 10, the cable sheath for the necessary core wire, for example, 1,600 mm, is stripped and the sheath is processed for the processing of the lead-through cable. Thereafter, the gripping member B is attached to the cable A, and the gripping member B is set in the groove between the plate-like wall portions 11 of the cable lead-in / insertion portion 1.
Next, for the core wire storage, all the core wire storage sheets 9 are opened, and the core wires are individually wound around the core wire storage sheet 9 for storage. At this time, the core wire storage sheet 9 is closed and sequentially stored every time one core is stored, but after completion of the core storage operation, the core protection sheet 10 is closed and the wiring is completed. (Fig. 10a)
Then, set generated a cord storage tray 4 subscription content of single fibers in a state where the housing surface facing up to the lowermost layer pass through cord storage tray 4 _1, after the open state, cord for example the need for drop cable After stripping the cable jacket for 1,350 mm and processing the jacket, a gripping member for dropping is attached and set in the groove between the plate-like wall parts 11 of the cable lead-in / out part 1.
Thus, the core wire protection sheet 10 is opened, and the core wire to be pulled out is pulled out from the core wire storage sheet 9. When the core wire to be dropped is taken out, all the core wire storage sheets 9 are closed, and the taken out core wire is cut at the center and then adjusted to a length of 700 mm. Further, the cut core wire can be connected to the drop core wire (mechanical splice connection only), wound around the pre-set core wire storage tray 4 and stored for organization (FIG. 10b). Further, the remaining cut core wires are held in the core wire storage tray 4.
In this case, in the core wire storage tray 4, approximately eight-shaped wiring is performed with the drop core wire, but when the drop cable A ₁ is set in the grip groove on the symmetric side with respect to the upstream side of the main cable in the gripper base 12 ( It is better to consider changing the wiring route in the tray when setting the gripping groove on the same side as the upstream side in FIG. 10b).
In local demand, in the small single-core aerial cable, when the closure D is installed in advance every several poles E, the lead-in core wires (maximum 8 to 12 cores) are individually stored and installed. Accordingly, even if local demand biased in the longitudinal direction occurs, it can be flexibly pulled down.

いずれにしてもこれらクロージャの運用では建設時先行配置したクロージャ内では、引き落し用心線と通過用心線分として単心線が無切断状態で個別に心線収納シート９に最大８心収納されている。（８心ケーブルの場合）
また光加入者発生時でのＳＯ（サービスオーダー）工事時には、心線収納シート９に収納されている引き落し予定の心線を心線収納シート９から取り出し、心線中央で切断し、ドロップケーブルと接続するが、接続後、心線収納トレイ４に、接続部及び接続余長心線を収納するし、引き落し用心線としては、１心単位で心線収納トレイ９に最大６心まで収納可能である。 In any case, in the operation of these closures, a maximum of 8 cores are individually housed in the core wire storage sheet 9 in a state where the single core wires are not cut as the pull-down core wire and the passing core wire segment in the closure arranged in advance. Yes. (For 8-core cable)
When SO (service order) work is performed when an optical subscriber is generated, the core wire to be pulled down stored in the core wire storage sheet 9 is taken out of the core wire storage sheet 9, cut at the center of the core wire, and dropped cable After the connection, the connection portion and the extra long core wire are stored in the core wire storage tray 4, and the core wire for pulling down is stored in the core wire storage tray 9 up to 6 cores in units of one core. Is possible.

また前記少単心架空ケーブルのクロージャＤ内での配線によれば、引き落し心線余長の収納が収まり良くできるし、心線の巻回収納にも余裕があり、しかも心線の保持も緩衝的に行なわれているので、心線に弛みが生じないし、各心線収納トレイ４を展開しても収納した光ファイバの余長部の長さの変化が少ないので、光ファイバの余長部の長さの変化が少なく、光ファイバ心線に無理な屈曲や小円弧が発生することなく光損失をなくして伝送特性を良好に保ことができる。 Further, according to the wiring in the closure D of the small single-core overhead cable, the extra core wire can be stored and the extra length can be stored, and the core wire can be wound and stored, and the core wire can be held. Since it is performed in a buffering manner, there is no slack in the core wire, and there is little change in the length of the stored optical fiber even if each core wire storage tray 4 is expanded. There is little change in the length of the portion, and it is possible to maintain good transmission characteristics by eliminating optical loss without causing excessive bending or small arcs in the optical fiber core.

さらに、心線の分岐、引込の際に心線トレイへの心線導出入の自由度があって作業上、心線接続部へのアクセスが簡便化でき、管理や組立分解作業も容易に行なえ、かつ高密度・高信頼性が得られる。殊に、必要なだけ多段に積み重ねた心線収納トレイ同士が外れたり、ずれたりすることなく、簡単確実に結合されて識別容易な心線接続部を持ったクロージャとして安全性を大幅に高められ、心線余長収納での高信頼性がえられるし、心線収納トレイ相互間を脱着でき取扱いも著しく容易化でき、かつコンパクト化が図れる。 In addition, there is a degree of freedom to guide and insert the core wire into the core tray when branching or retracting the core wire, so that the access to the core wire connection can be simplified and the management and assembly / disassembly operations can be performed easily. High density and high reliability can be obtained. In particular, it is possible to greatly enhance safety as a closure with a core connection part that is easily and securely connected without easily detaching or shifting the core storage trays stacked in multiple stages as necessary. In addition, high reliability in storing the extra length of the core wire can be obtained, the core cord storage trays can be attached to and detached from each other, the handling can be significantly facilitated, and the size can be reduced.

図１は本発明の実施例の一使用状態を示し、（ａ）はカバー体を開けて内部を示す平面図、（ｂ）はその縱断面図、（ｃ）はその正面図である。FIG. 1 shows one use state of an embodiment of the present invention, in which (a) is a plan view showing the inside by opening a cover body, (b) is a cross-sectional view of the heel, and (c) is a front view thereof. 図１に用いられる心線収納トレイを示し、（ａ）はその平面図、（ｂ）はその正面図、（ｃ）はＣ−Ｃ線における縱断面図、（ｄ）はＤ−Ｄ線における縱断面図である。1 shows a core wire storage tray used in FIG. 1, (a) is a plan view thereof, (b) is a front view thereof, (c) is a cross-sectional view taken along line CC, and (d) is along line DD. FIG. 図２の例で用いられる心線収納トレイで、（ａ）はその底面図、（ｂ）はその側面図である。2A is a bottom view and FIG. 2B is a side view of the core wire storage tray used in the example of FIG. 2. 本発明で用いられる心線収納シートを示し、（ａ）はその平面図、（ｂ）はｂ−ｂ線における縱断面図、（ｃ）はｃ−ｃ線における縱断面図である。The core wire storage sheet used by this invention is shown, (a) is the top view, (b) is the cross-sectional view in the bb line, (c) is the cross-sectional view in the cc line. 本発明で用いられる上層心線収納トレイを分離した最下層通過心線収納トレイを示し、（ａ）はその平面図、（ｂ）はトレイホルダー部の拡大側面図、（ｃ）はトレイストッパ部の作用状態を拡大した縱断面図で単心トレイ閉時（ロック状態）、単心トレイ開時（開度６０度・ロック解除状態）、単心トレイ開放時（開度９０度・ロック解除状態）である。The bottom layer passing core wire storage tray which separated the upper layer core wire storage tray used by this invention is shown, (a) is the top view, (b) is an enlarged side view of a tray holder part, (c) is a tray stopper part The cross-sectional view of the enlarged state of the operation of the single core tray closed (locked state), single core tray opened (opening 60 degrees, unlocked state), single core tray opened (opening degree 90 degrees, unlocked state) ). 図５の例の心線収納時の状態を示す縦断面図である。It is a longitudinal cross-sectional view which shows the state at the time of the core wire accommodation of the example of FIG. 本発明の実施例で用いられる最下層通過心線収納トレイを示し、（ａ）はその平面図、（ｂ）はＡ−Ａ線における縱断面図である。The bottom layer passing core wire storage tray used in the Example of this invention is shown, (a) is the top view, (b) is a cross-sectional view in the AA line. 図７の例で用いられる最下層通過心線収納トレイで、（ａ）は底面図、（ｂ）はその平面図、（ｃ）は把持具ベースの平面図である。7A is a bottom view, FIG. 7B is a bottom view thereof, FIG. 7B is a plan view thereof, and FIG. 8C is a plan view of a gripping tool base. 本発明の実施例で用いられる使用状態の系統説明図で、（ａ）は斜面、（ｂ）はその一部の拡大側面図である。It is system | strain explanatory drawing of the use condition used in the Example of this invention, (a) is a slope, (b) is the one part enlarged side view. 図９の例で用いられるクロージャの配線手順状態を示し、（ａ）は引き通し配線時の平面図、（ｂ）はドロップ配線時の心線収納トレイを引き出した使用状態の平面図である。9A and 9B show a wiring procedure state of the closure used in the example of FIG. 9, wherein FIG. 10A is a plan view at the time of lead-in wiring, and FIG. 10B is a plan view of a use state in which the core wire storage tray is pulled out at the time of drop wiring.

Explanation of symbols

Ａ光ケーブル
Ａ_１ドロップケーブルＢ把持部材
Ｃ接続部
Ｄクロージャ
Ｄ_１地下クロージャ
Ｄ_２ＳＦＡＯクロージャ
Ｅ電柱
１ケーブル導出入部
１_１心線導出入部
２接続部収納部
３心線余長収納部
４心線収納トレイ
４_１最下層通過用心線収納トレイ
４_２心線導出入部
５クロージャ本体
５_１グロメット
６カバー体
７嵌合部
８トレイホルダー
８_１階段状壁面
９心線収納シート
１０心線保護シート
１１板状壁部
１２把持具ベース
１３爪受け部
１３_１固定爪
１４支軸
１５支軸受け部
１６ストッパ軸
１７ストッパ軸受け部
１８窓孔
１９心線係止片
２０開閉操作用穴
２１認知孔
２２係止孔
２３係合止部
２４ガイドリブ
２５心線押え片
２６心線押え片
２７心線トレイ
３０取付孔
３１取付け孔
３２係止部材
３３固定ネジ
３４取付板
３５支持線取付具
３６把持用溝
３７把持部材
３８ボルト
４２ガイドリブ
４３ガイドリブ
４４ケーブル経路
４５心線押え片
４６シート押え片
５０軸受け部
５１ヒンジ軸
５２留め具
５３ストッパ片
５４案内係合片 A Optical cable A ₁ Drop cable B Grip member C Connection part D Closure D ₁ Underground closure D ₂ SFAO closure E Telephone pole 1 Cable lead-in / out part 1 ₁ Core wire lead-in / in part 2 Connection part storage part 3 Core wire extra length storage part 4 Core line storage Tray 4 ₁ bottom wire passing core wire storage tray 4 ₂ core wire lead-in / in part 5 Closure body 5 ₁ grommet 6 cover body 7 fitting part
8 Tray holder 8 ₁ Step-like wall surface 9 Core wire storage sheet 10 Core wire protection sheet 11 Plate-like wall portion
12 Grasping tool base 13 Claw receiving part 13 ₁ Fixed claw
14 Spindle
15 Supporting bearing portion 16 Stopper shaft 17 Stopper bearing portion 18 Window hole 19 Core wire locking piece 20 Opening / closing operation hole 21 Recognition hole
22 Locking hole
23 Engagement stop 24 Guide rib
25 Core wire holding piece 26 Core wire holding piece 27 Core wire tray 30 Mounting hole 31 Mounting hole 32 Locking member 33 Fixing screw 34 Mounting plate
35 Support wire fitting
36 gripping groove 37 gripping member 38 bolt 42 guide rib
43 Guide rib
44 Cable path
45 Core wire presser piece
46 Sheet pressing piece 50 Bearing portion 51 Hinge shaft 52 Fastener 53 Stopper piece 54 Guide engaging piece

Claims

A cable lead-in / out part having a gripping member for gripping an optical cable is provided, and a connection part accommodating part for supporting a connection part connecting the cores led out / in from the cable lead-in / in part, and an extra wire length extending from the connection part are wound. in the optical cable connecting closure of the cord storage tray formed with a core wire excess length accommodating portion is detachably deploy the cover body to the closure body having at least one accommodating Te, the closure body, of the plurality A lowermost passing core wire storage tray having a tray holder with a fitting portion capable of fitting the core wire storage tray is provided, and at least one of the core wire storage trays can be freely inserted into and removed from the fitting portion of the tray holder. And a plurality of core wire storage trays as upper layer trays that can be rotated and stacked in multiple stages above the lowest layer passing core wire storage tray. , Optical cable is characterized in that mounted a plurality of cores accommodating sheet separately housed at the lowermost passage cord storage tray of the central portion to the debit core wire and passing core wire-free cut rotatably respectively Connection closure.

In claim 1 optical cable connecting Kurojiya described, the core wire protective sheet made of soft sheet material between the core wire receiving sheet and the cord storage tray at the top of the plurality of the core wire accommodating sheet times A closure for connecting an optical cable, wherein the core wire storage sheet and the core wire storage tray are separated from each other by being movably disposed.

3. A closure for connecting an optical cable according to claim 1 or 2, wherein a cable lead-in / out section formed by a plurality of plate-like wall portions projecting in a lattice shape is provided at both ends of the housing portion into which a gripping member for gripping the optical cable can be inserted. A gripping tool base is provided opposite to the core wire introducing portion of the lowermost layer passing core wire storage tray provided in the closure body, and a pair of claw receiving portions formed on the gripping tool base is formed on the lowermost layer passing core wire storage tray. A closure for connecting an optical cable, wherein the fixed claw is engaged and attached to the closure body.

The optical cable connection closure according to claim 1 or 2, wherein the tray holder is provided with a stepped wall surface on a pair of rib-like support walls projecting apart from each other, and the core wire storage tray is provided on the stepped wall surface. Each of the support bearings can be rotatably fitted to the provided support shaft, and a stopper bearing that can be fitted to the stopper shaft provided on the core wire storage tray is provided between the rib-shaped support walls. An optical cable connection closure characterized by comprising a structure.

3. A closure for connecting an optical cable according to claim 1 or 2, wherein the core wire storage sheet is made of a substantially oval sheet of a thin film made of a plastic material or a rubber material, and protrudes from a window hole formed separately. The wire locking piece is provided at a position shifted from the position of the core wire locking piece formed on the adjacent core wire storage sheet, the opening / closing operation hole at the center of the sheet, and the core wire at both ends of the sheet A closure for connecting an optical cable, which is provided with a recognition hole for regulating a storage range.

6. The optical cable connecting closure according to claim 3, 4 or 5, wherein the core wire storage tray holds a core wire holding piece for holding a single optical fiber lead into and out of the core wire storage tray, and Consists of a plastic case formed with a connecting portion storage portion that supports a connecting portion that connects the core wires, and a core wire extra length storage portion that winds and stores the extra length of the core wire extending from the connection portion. An optical cable connection closure characterized in that it can be arbitrarily set in the closure body with its storage surface facing up.

6. A closure for connecting an optical cable according to claim 3, 4 or 5, further comprising a support wire fixture via a mounting plate fixed to the closure body by a fixing screw, and a grip groove in the support wire fixture. A closure for connecting an optical cable, characterized in that a pair of gripping members facing each other are faced and tightened with bolts so that the support wire can be gripped and fixedly deployed.