JP2007121598A - Termination board in closure for connecting optical cable - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a termination board in a closure for connecting an optical cable permitting a single core application without affecting other coated optical fibers in the cases of pull-down wiring and branch connection wiring from an optical cable; allowing vacant coated optical fibers to be used as single coated optical fibers for subsequent subscribers to raise a use efficiency of the coated optical fibers; substantially improving workability such as coated optical fiber storing work, check and repair by making the connections and storing of the coated optical fibers into a connector-connectable configuration; and also maintaining a favorable transmission characteristic. <P>SOLUTION: The termination board 11 is arranged to be able to mount two or more connectors C as connection parts of main coated optical fibers a of an optical cable A in a connector mounting part, and in order to connect the coated optical fibers to each of the terminating tray and/or splitter tray configured to be connector-connectable via the termination board 11, a wiring hold part 11<SB>1</SB>which makes a single coated optical fiber led into the termination board 11 curve and run along the outside surface is formed, and a round shaped guide 15 which holds down the coated optical fiber to be freely attachable/detachable to/from the wiring hold part 11<SB>1</SB>and guides and holds it to a connector mounting part 14 is pivotally supported so as to be freely turnable, and also the connectors connected to the single coated optical fibers are arranged in the connector mounting part 14. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a communication cable, particularly an access section of an aerial section of an optical fiber cable having an optical fiber core (hereinafter referred to as an optical cable), a wiring point in a fixed wiring section, a jacket connection at a cable connection point, an aerial optical cable, and a drop optical cable. It is used to connect the optical cable, protects the optical cable connection part, stores the extra length of the core, and does not affect other cores when dropping or branching from the optical cable. The core can be operated, and the unoccupied core can be used as a required single core for subsequent user participation, increasing the efficiency of the core, easily responding to fluctuations in demand, and easy to handle during connection wiring work In addition, the present invention relates to a termination board used for an optical cable connection closure capable of greatly improving the workability.

Conventionally, when branching, drawing in, or connecting an optical cable, the cable cores are connected to each other in the closure, and the extra length of the cable core is stored to store the connection part and the extra length of the cable core. Closures with trays are known.
This closure stores a connecting portion for connecting optical cable cores drawn from the main cable of the optical cable for the main trunk line or between the core cables drawn from the branch optical cable, and further the extra length portion of the connected core cables It is used as a connection function-dedicated closure or a drop function-dedicated closure as having a core wire extra-length storage section for protecting and storing by winding. (Japanese Patent Laid-Open No. 2001-42155)

The optical cable connection closure of Patent Document 1 is configured as a drop tray capable of separately storing the connection portion and the extra length of the core wire separately for each single core branched from the tape core wire. Is provided in a mounting portion provided in the closure.
JP 2001-42155 A

However, in a communication network using an optical cable, there is a demand for an optimum wiring form of the optical access network, good workability of the connection wiring, and provision of an optical access service quickly and inexpensively. However, there is nothing that is difficult to operate with a single core and is sufficiently satisfied with the efficient and economical use of the optical access system equipment, and in particular, as the density of cables increases, the number of cores increases or the transmission speed increases. However, there is a problem that it is difficult to perform work and wiring arrangement accompanying connection branching.
Also, in the branching operation of the optical cable, in order to pull down the drop optical cable, an unusable core wire is generated, which is uneconomical and the core wire cannot be returned to the main line again. The equipment cannot be used efficiently and economically, and pulling or bending of the core wire occurs when connecting to the drop optical cable, lower stretched tape core wire, or other cables, resulting in poor connection or safety There are problems such as lack of reliability and unreliable transmission characteristics due to vibration phenomenon.

  The present invention has been made in view of these conventional circumstances, and uses an optical cable single-core wire, and does not affect other core wires at the time of drop wiring and branch connection wiring from the optical cable. Single-core operation is possible, and unoccupied core wires are used as necessary single-core wires for subsequent user participation, etc., to increase the efficiency of core wire use, and for core wire connection / storage, modular connectors can be connected. In addition to greatly improving workability including maintenance work such as connection work, core wire storage work, and connection status inspection and repair, the optical fiber cable can easily protect the core wires separated from each other. The optical access service can be provided promptly and inexpensively, such as extending the lower part of the core wire, supporting the aerial loop wiring, and returning the branched core wire to the main line again. Fall Tray with different functions for storing wiring and branch connection wiring and its connector connection part Each tray required for function requirements can be easily added, added, removed, and handled for easy aerial or ground mounting It is intended to be a termination board in an optical cable connection closure.

  In order to solve the above-mentioned problems, the present invention includes a connector housing portion that houses a connector that serves as a connection portion of an optical cable core, and a core wire extra length housing portion that accommodates an extra length of the core wire, thereby enabling connector connection. The termination board used for the optical cable connection closure in which the termination tray and / or the splitter tray configured as described above is installed in the closure body is provided on the core wire connected to each tray of the termination tray and / or the splitter tray. A connector having a connector mounting portion that can be detachably attached to a plurality of connectors, and a single core wire introduced into the termination panel, that is, a single core wire or a tape core wire pulled down from the main cable is bent outward. A wire holding part is formed, and a single wire on the wiring holding part is pressed down so as to be able to contact and separate, and a round guide that guides and holds the connector mounting part is pivotally supported. Together it is obtained by deploying the connector mounting portion via a connector socket for inserting a connector detachably.

  According to the present invention, the connector mounting portion of the termination board is attached via a cylindrical connector socket in which the connector can be removably installed, and a grid-shaped guide rib into which the connector socket can be inserted, a gripping groove, A fitting hole formed between the guide ribs and a locking piece that can be locked to the locking hole are provided corresponding to the connector socket, and the connector socket can be safely and detachably attached to the connector mounting portion. With this configuration, it is possible to remarkably simplify the workability, including the work of connecting and storing the optical fiber using a single optical fiber, and maintenance work such as inspection and repair of the connection status. The protection and reliability of branch connection wiring is greatly improved.

  Also, in the termination panel of this optical cable connection closure, the single core wire separated from the core wire is dropped and held along the wiring holding portion by the rounded guide, and the single core wire is held by other means such as carrier change. When it is necessary to switch to a functional tray, the connector connection can be used to eliminate the core wire shrinkage core wire extra length processing that occurred during the conventional fusion splicing and mechanical splice connection, making safer and more reliable connection work. It can be done and the work can be simplified and the reliability can be improved.

  Furthermore, the termination of the optical cable connection closure according to the present invention is characterized in that a connector fixing member for holding a connector attached to a connector mounting portion of the termination board via a connector socket is opposed to the connector mounting portion by a connector fixing base. The drop cable can be securely fixed, the work in the termination tray can be easily performed, and the workability is greatly improved.

  Further, in the present invention, the termination board is formed of a U-shaped member having a wiring holding portion on the curved outer surface, and the rounded guide along the curved outer surface is pivotally supported on the support shaft by the bearing portion. In addition, a center tray mounting portion and a locking lock portion used as a stopper for fixing and releasing the guide are provided at the upper portion, and a connector mounting portion is provided at the lower portion, and the center tray is fixed to the center tray mounting portion. A single-core wire separated from the core wire introduced into the cable is held down by the rounded guide along the wiring holding portion and held down, and the connector connected to the single-core wire is connected to the connector mounting portion via a connector socket. Because it is detachably provided, it has multiple connector mounting members in the longitudinal direction of the core wire, and the connector connection part is fixed at any position in consideration of connection failure. In addition, it is possible to easily pull out or bend the core wire when the connector is attached / detached, and to drop it to the subscriber who wants SS service (dedicated line / B FLET'S Basic). Stores and protects the connector connection portion of the transmission cable with the DS cable and the extra length of the core wire.

  In the termination board of the present invention, the connector fixing member includes a receiving portion having a connector insertion recess and a core wire insertion groove, and a connecting portion having a reverse T-shaped cross section that engages the connector fixing base, and a stopper piece. The connector fixing base is formed in one piece and is detachably fitted into the holding groove of the connector fixing base, and the connector fixing base is formed with a plurality of holding grooves at one end in a comb shape, and the connector is fixed to the holding groove. Equipped with a planting part that detachably mounts the member, and by extending the attachment part that connects to the tray fixing base at the other end, it is possible to eliminate the influence on other core wires when attaching and detaching the core wire. This is a safe configuration that suppresses the occurrence of pulling and bending.

  Further, in the present invention, the splitter tray (SP tray) provided with a connector mounting portion to which a plurality of connectors can be detachably attached and connected to the connector and provided in the optical cable connection closure body is provided with the PON service. A connector for a single-core cable, an SP input line, an SP output line, a drop cable or a DS cable, and an extra length of a cord and a splitter module (SP module) are stored and protected for withdrawal to a desired subscriber. An SP module having a plurality of connectors is detachably provided in the tray by attachment parts, and connector fixing members are provided at both ends so that the drop cable can be pulled out from either the left or right side. The connector connection part can be divided and fixed to the left and right. To, at the time of the core wire detachable and has a configuration to eliminate the influence of the other core wire.

In the optical cable connection closure in which the termination board of the present invention is used, the splitter tray is provided with a plug in a core wire connected to the termination board, and a socket is attached to a plurality of core wires connected to each termination tray. The drop termination tray (DS tray) is arranged as a connection tray (SS tray) or a splitter tray (SP tray). ) To store and protect the connector connection part and the extra length of the DS cable from the single core cable that is the outgoing cable from the DS cable with a connector fixing structure that can be expanded each time depending on the subscriber When removing the connector on the DS core wire side, the cable side connection failure surplus length absorption structure allows the core wire to be distributed in the direction of the left and right connectors. There is also a secure configuration that does not affect the core extra length.
The drop termination tray is pivotable by a hinge portion of a pivotal support, and is detachably provided on the tray fixing base so as to absorb the extra length of the core wire that absorbs the difference in the length of the core wire caused by the number of connection of each core wire. In addition, it is possible to suppress the pulling or bending of the core wire when the connector is attached or detached.

The termination tray is provided with a plurality of connector storage portions divided into left and right, and a drop fixing member for fixing the core wire from the splitter tray at the introduction portion is provided as necessary, and a lower extension termination tray, DS / As the R / TD termination tray and the drop termination tray, a plurality of trays are stacked on the tray fixing base via the tray mounting portion, and are pivotally supported by the pivoting portion. A tray that forms a storage part for the connection between the tape core wire cut at the center point of the closure and the split core wire, and the extra length of the core wire, for example, one side Up to 8 connections can be fixed, and the extra length of the main cable side tape core can be stored in the tray. The 4-fiber ribbons fraction outlet can be easily tray identified by splitting into individual route.
Furthermore, the tray mounting portion is slidably disposed in the tray storage portion in which the comb teeth holding the termination tray in a horizontal state are arranged in multiple stages so that the splitter tray and the termination tray can be slid back and forth. The tray can be moved to a position where it can be easily connected in each tray, and because it is a rotatable tray, it is easy to open the overlapping surface of each stacked tray, simplifying inspection and repair work. Can be planned.

In the optical cable connection closure, termination trays having different functions for protecting and storing the connection portion of the optical cable core and the connection extra length portion are provided on the tray fixing base, and each tray is used as a locking piece. With a configuration that can be fixed and maintained by a locking portion composed of a locking receiving portion, and a plurality of tray mounting portions that are rotatable and detachable by a hinge portion, and fixed to a frame provided in the closure body, In addition, a plurality of the splitter trays and the drop termination trays arranged so as to be slidable are used, and each tray can be position-converted to perform wiring processing. It is good to be able to easily draw only a single core wire or return to the main line.
That is, separate the multi-core optical fiber ribbon from the optical fiber single core, select only one core or more and connect it to the cable, and connect the other to the bottom as an optical fiber single core. It becomes possible to hold it so that it can be included. Further, the extra long core wire necessary for the connection work can be stored together with the connection portion by opening or removing an optional drop tray.
Unoccupied cores can then be used as necessary single cores for subsequent users, and other tasks such as connecting other cores, checking connection status, repairing, checking and adjusting are also integrated. And can be done very easily.

  In addition, the drop termination tray and the splitter tray are arranged in multiple stages so as to be displaceable, and can be freely rotated at a predetermined position. The drop termination tray and the splitter tray are multi-layered in connection units, and the core wire connection portion is not fixed. Further, since the extra length of the core wire can be handled and stored while ensuring the radius of curvature, it is stored with a degree of freedom in absorbing the extra length of the core wire, and is used in a form that does not adversely affect the transmission characteristics.

  The present invention is used in an optical cable connection closure in which a termination tray and / or a splitter tray configured to enable connector connection is installed in a closure body, and a termination board is provided for each of the termination tray and / or the splitter tray. A wiring board that has a connector mounting part that can be detachably attached to a plurality of connectors provided on the core wire connected to the tray, and the single core wire that is introduced into the termination board is curved and runs along the outer surface. Through a connector socket that pivotally supports a rounded guide that presses the core wire on the wiring holding portion so as to be able to contact and separate and pivotally supports the connector mounting portion, and removably inserts the connector. The connector is installed at the connector mounting section, so that when the wiring is dropped from the optical cable and the branch connection wiring, the other core wires are not affected. The vacant core wire can be used as a single core wire necessary for subsequent user participation, etc. to increase the efficiency of core wire connection, and the core wire connection / storage is modularized so that connectors can be connected and connected. In addition to significantly improving the workability, including maintenance work such as core wire storage work and inspection and repair of the connection status, it is possible to protect the core wires separated into single cores, enabling the effective use of optical cables. Optical access services can be provided quickly and inexpensively, such as extending the lower part of the core wire and aerial loop wiring, and returning the branched core wire to the main line again. It is also possible to provide trays with different functions for storing the connector connection part, and each tray required for the function request can be easily added, added, removed, or removed. Significantly simplified, also it is possible to easily switch wiring process of good cable, simplification of handling can be achieved.

  In the termination board used in the present invention, the connector attachment portion of the core wire for switching and connecting each tray has a lattice-shaped guide rib into which the connector socket can be inserted, and a fitting hole formed between the guide rib serving as a holding groove A locking piece that can be locked in the locking hole is provided corresponding to the connector socket, and the connector socket can be safely and removably mounted on the connector mounting portion. It is possible to use a single core without affecting other cores when dropping from optical cables and branch connection wiring, and a free core can be used for subsequent users. Use as a single core to increase the efficiency of the use of the core, and connect and store the core, including modularization, so that connector connection is possible, maintenance work such as connection work, core storage, and connection status inspection and repair It is possible to greatly improve the workability included.

  Furthermore, the termination board of the present invention used for the optical cable connection closure is formed of a U-shaped member having a wiring holding portion on the curved outer surface, and a rounded guide along the curved outer surface is supported by the bearing portion. A center tray mounting portion at the top, a locking lock portion for closing and fixing the guide, and a connector locking portion at the bottom. A single-core wire separated from a core wire introduced into a fixed center tray is dropped and held along the wiring holding portion by the rounded guide, and the connector connected to the single-core wire is connected via a connector socket. Since the connector mounting part is detachably provided, the pulling and bending of the core wire can be suppressed when the connector is attached and detached, and the core wire can be easily seen during single-core separation work. Wiring work is easy and quick, the single core can be safely protected, and the shortened core can be easily attached when the connection fails. Since it can be switched, it helps to simplify the core connection work and the core storage work, and allows excellent single-core operation.

  The termination board of this optical cable connection closure includes a lattice-shaped guide rib in which the connector mounting portion can be fitted with a connector socket in which the connector can be removably inserted, and a fitting hole formed between the guide ribs. By having a configuration in which a locking piece that can be locked in the hole is provided corresponding to the connector socket, the connector socket can be detachably provided, and the connector is mounted in the connector socket so as to be detachable. In addition to simplifying the attachment / detachment work, it is easy to ensure safety after the connector is installed and set, and it also helps to prevent the drop of the connection cable to each tray or the drop cable in the case of SS connection. It can be suppressed and contribute to wiring protection.

  In addition, a splitter tray with a configuration that enables connector connection is provided with a splitter module with a plurality of connectors detachably mounted in the tray, and a guide that suppresses the occurrence of pulling or bending of the core wire when the connector is detached. Since the splitter module is removed, the splitter module can be opened and handled separately from the tray when attached, and can be used in a form that can be easily connected and updated and added to each tray.

  In addition, according to the present invention, since the termination tray having a configuration capable of connector connection can be connected via the termination board, a plurality of connector housing portions are selected in the longitudinal direction of the core wire to select the core wire. A connector that connects the cable to the connector can be installed to suppress the pulling and bending of the core wire when the connector is attached and detached, and the core wire can be easily and quickly wired when the single core is separated. The wire can be safely protected, and the shortened core wire can be easily attached when the core wire connection fails, and the core wire can be pulled down or switched, so the core wire connection work and the core wire storage work are simple. It can be used for processing and storage work for single-core operation.

  The termination board of the optical cable connection closure is provided with a latching structure in which the connector mounting portion is formed by a guide groove formed of a guide rib and a fitting projection in the fitting hole corresponding to the joint surface with the connector socket. As a result, the connector can be easily attached and detached, and the safety after the connector installation set can be easily secured, and the connection cable to each tray or the drop cable in the case of SS connection can be prevented from falling off. And the occurrence of bending can be suppressed, contributing to wiring protection.

  In this case, the splitter tray used in the optical cable connection closure includes a tray that is detachably provided by selecting a splitter module having a plurality of connectors on the left and right sides of the tray, and a storage that stores the extra length of the core wire. And a tray formed by distributing the core wire lead-out portion to the left and right, and two upper and lower trays connected to each other by a hinge portion so that it can be opened and closed. Can be separated and housed, and the splitter input core wire from the termination board can be connected to the splitter module to facilitate wiring to each termination tray via the termination board as a wiring system connected to the termination tray. It is possible to simplify the arrangement and contribute to the improvement of workability.

  In addition, the splitter tray is provided with a plug in the core wire connected to the termination board, and a splitter module having a socket provided in a plurality of core wires connected to each termination tray is provided for connector connection. When the splitter tray is configured, the splitter input core wire from the termination board is connected to the splitter module and is simplified as a wiring system that connects to the termination tray. Quality is maintained with uniformity.

  In addition, the termination tray used in the optical cable connection closure according to the embodiment of the present invention includes a plurality of connector storage portions divided into left and right, and a drop fixing member for fixing the core wire from the splitter tray at the introduction portion is required. Rotate by the pivoting part in a state where a plurality of trays are stacked on the tray fixing base via the tray mounting part as a bottom extension tray, a DS / R / TD termination tray, and a drop termination tray. If it is freely pivoted, even if there is a difference in the extra length of the core wire due to the number of connection of the core wires in the tray, it can be handled and stored because there is an extra length storage part that absorbs the extra length difference. High reliability in storing the extra length of the core can be obtained without any effect, and multiple stacked trays can be switched, greatly improving safety and workability as a closure. Door can be.

  Further, the optical cable connection closure used includes a connection portion storage portion that stores the connection portion of the optical cable core wire and a core wire extra length storage portion that stores the extra length of the core wire and enables connector connection If the tray mounting part is slidably arranged in the tray storage part with multi-stage comb teeth that hold the spreader tray and termination tray in a horizontal state so that the termination tray can be slid back and forth, wiring connection and other inspections In the repair processing work, it can be changed to a position where the connection work in each tray is easy to perform, and since it is a rotatable tray, it is easy to open the overlapping surface of the stacked trays, Inspection and repair work can be simplified.

To illustrate embodiments of the present invention with reference to the drawings, the closure body 1 shown in FIGS. 1 and 2 are connected together at a hinge portion 1 _1, openable consist configured sleeve, sealing members with cable A An end face plate 2 to be inserted through is detachably provided at both ends. The optical cable A is introduced and led out into the closure main body 1 via the end face plate 2 and is held by the cable TM gripping tool 3 (cable tension member gripping tool). The single core wire separated from the drawn single core wire or the tape core wire is connected via the splitter module B via the termination board 11 on which a plurality of connectors C to be connected to the main core wire a can be provided. The tape core wire b, the DS / R / TD cable c, and the drop cables d and d ₁ are connected to each other so that connectors can be connected to each other. A plurality of termination trays 4, 5, 6 and a splitter tray 7 are arranged. (Fig. 9)
Thus, the optical cable A is provided with the termination trays 4, 5, 6 and / or the splitter tray 7 configured to be provided with the connector C which becomes the connection portion of the core of the optical cable A and enables the connector connection. In the closure, the termination board 11 having a connector mounting portion 14 to which a plurality of connectors C provided on the core wires connected to the termination trays 4, 5, 6 and / or each tray of the splitter tray 7 can be detachably attached. the provided, to form the wiring holding part 11 ₁ that along curved the single fibers to be introduced into the molded end plate 11 on the outer surface, the hold-down the core of the wiring holder ₁₁₁ freely separable connector A round-shaped guide 15 guided and held by the mounting portion 14 is pivotally supported, and the connector C is disposed in the connector mounting portion 14 via a connector socket 16 in which the connector C is detachably inserted. Are you. (FIGS. 2 and 3)

As the termination board 11 has an inner guide and an outer guide for holding a cable turn to the left and right, made a U-shaped member wire holding portion 11 ₁ is formed with a curved outer surface, the holding wiring the round shape guide 15 along a section 11 ₁ is connected to the support shaft 15 ₂ by the bearing unit 15 _1, as well as rotatably supported around a support shaft 15 _2, a center tray mounting portion 14 ₁ in the upper and a lock portion 14 ₂ which is used as received closed fixed and opening of the guide is provided, and a connector mounting portion 14 to the lower, is introduced into the center tray attaching portion 14 fixed center tray 8 to ₁ the single fibers separated from core a holding darken in along a downward via the wire holding portion 11 ₁ by the round shape guide 15, a connector C connected to single fibers tubular connector It is detachably mounted to the connector mounting portion 14 via the lighter socket 16. (Figure 3)
The termination board 11 is attached to the tray fixing base 10 and is provided facing the end face plate 2 in the closure main body 1 so as to conveniently correspond to the connection of the optical cable A introduced and led out. It has become.
The rounded guide 154 is preferably provided with a locking portion at the tip so that the rounded guide 154 can be detachably locked to the termination board 11 so that the main core wire a can be securely pressed.

The connector mounting portion 14 of the termination board 11 is formed between the guide ribs 24 and 24 and a lattice-shaped guide rib 24 serving as a holding groove into which the connector storage case 16 in which the connector C can be inserted and removed can be inserted. A locking piece 17 that can be locked to the fitting hole 25 and the locking hole 26 is provided corresponding to the connector socket 16, and the connector socket 16 may be detachably arranged. (FIGS. 4 and 5)
In other words, the connector C is mounted in the connector socket 16 so that it can be inserted and removed, so that the connector can be easily attached and detached. It provided a pair of Goana 25, or removably deploy a connector socket 16 provided with a locking piece 17, 17 ₁ which can engage the fitting hole 25 (FIG. 4), or guide ribs to the mounting plate between 24 A fitting socket 25 and a locking hole 26 are provided, and a connector socket 16 having a locking piece 17 that can be locked to the fitting hole 25 and the locking hole 26 is detachably arranged (FIG. 6). What is necessary is just to arrange | position the connector C in the bucket 16 so that insertion or removal is possible.

In order to detachably mount the connector socket 16, the connector socket 16 is inserted while sliding between the guide ribs 24 serving as gripping grooves along the mounting plate, and the locking piece 17 is inserted into the fitting hole 25. in may be press-fitted locking the leading end of either locking piece 17 press-fitting the engaging piece 17 ₁ to other party of the fitting hole 25 in the retaining hole 26, further the guide grooves on both the outside surface of the connector socket 16 27 And is inserted into the protrusion of the guide rib 24 and slid and fixed to help prevent the connector socket 16 from falling off.
Further, as a countermeasure against vibration of the drop cables d and d ₁ , a connector fixing member 28 is slidably attached to the connector fixing base 29 for fixing the connector C inserted into the connector socket 16 in order to fix the drop cable. Thus, the safety of the connector C mounted after the connector C is mounted on the terminal board 11 by fitting and holding one end of the connector C by the connector fixing member 28. It can be easily secured and can be stably deployed on each tray. (FIGS. 2, 7 and 8)

As the termination tray for accommodating the connector housing portion 4 _1, 5 _1, 6 ₁ for accommodating a connecting portion of the main core a of the optical cable A as shown in FIGS. 10 and 11, the core wire extra length heart line excess length storage section _{4 2,} 5 2, _{6 2} and the lower with each stretched termination tray 4, DS / R · TD termination tray 5 and the drop termination state in which the tray 6 was more superimposed trays fixing base 10 In the closure body 1, the optical cable connection closure is provided. Further, the splitter tray 7 and the center tray 8 that store the splitter module B, and a plurality of connectors for the connection portion C of the main cable a of the optical cable A can be provided. annexed a Narutanban 11, and a core wire excess length accommodating portion 9 ₂ for accommodating the core wire extra length and connecting portion housing portion 9 ₁ for accommodating a connecting portion of Shukokoro line a optionally connected Tray 9 is black Are the interior in Ja body 1. (FIGS. 10 to 12)
Although the lower extension termination tray 4 and the DS / R / TD termination tray are provided in a two-layer structure as shown in FIG. 10b, they may be used separately.

The connector C serving as the connection portion of the main cable a of the optical cable A includes a detachable connector socket and a connector plug. The connector C connects the termination board 11 and the splitter tray 7 so that the connector can be connected. The output core line a ₁ separated from the splitter tray 7 is connected to a termination tray such as a lower extension termination tray 4, a DS / R / TD termination tray 5, and a drop termination tray 6 so that they can be connected to a connector. Further, in the case of SS connection, it can be used as a drop cable d ₁ directly from the termination board 11.
Further, the termination trays 4, 5, 6 and the splitter tray 7 are pivoted to a slidable tray mounting portion 13 of a tray storage case 12 provided on the tray fixing base 10 in a stacked state. It can be freely pivoted and is installed in the closure body 1 so that the wiring process can be easily performed. (FIGS. 13 and 14)

A plurality of connectors C connected to the core wire a are provided on the connector mounting portion 14 of the termination board 11 so that the connectors can be connected. In addition, the splitter tray 7 is provided with two stages of the splitter tray 7 in which a splitter module B provided with a plurality of connectors C for connecting the core wire a is inserted and deployed to the left and right to enable connector connection. , lower stretch termination tray 4 where the connector C connected to the output core a ₁ which is separated from the splitter tray 7 a plurality deployed to enable connector connection, DS / R · TD termination Torre 5 and drop terminations The tray 6 is arranged in a multi-layered state, and each of the termination trays 4, 5, 6 is rotatably provided on the tray mounting portion 13 by a hinge portion. Thus, a closure for connecting an optical cable having an obliquely displaceable configuration in the closure body 1 is obtained. For example, the termination trays 4, 5, 6 including the splitter tray 7 and the drop termination tray 6 are swung in a stepped manner so as to be freely pivoted on the tray mounting portion 13 provided on the fixed base 10. Deployed to hold tilt.
As a countermeasure against vibration, a connector fixing member 28 is slidably attached to the connector fixing base 29 to fix the connector C inserted into the connector socket 16 in order to fix the drop cable. Each tray can be easily secured by mounting the connector C attached to the termination board 11 by fitting and holding one end of the connector C by the connector fixing member 28, which is opposed to the mounting portion 14. Stable deployment can be done. (Figure 2)

As the splitter tray 7, in which is provided a splitter module B having a plurality of connectors detachably by selecting the module mounting portion 7 in _one on the left and right sides of the tray, further accommodating the core wire extra length a tray of upper and lower layers of the tray formed by distributing a core-guiding portion in the left and right has a slack storage section 7 ₂ can be closed by the engagement portion 7 ₅ connected freely by connexion closing the hinge portion 7 ₄ configuration and then, is provided to be freely and detachably pivoted to the tray mounting portion 13 at pivot portion 7 _3. (Fig. 11)
The splitter tray 7 is a splitter module in which a plug is provided on the core wire a connected to the termination board 11 and sockets are provided on a plurality of core wires connected to the termination trays 4, 5, 6. It is preferable to configure the splitter tray 7 in which B is provided to enable connector connection.

These said termination trays 4,5,6, the connector receiving portion _{4 1,} 5 1, a plurality divides _{6 1} to the left and right, cord extra length accommodating portion for accommodating a core wire extra length _{4 2, 5} 2, It includes a 6 _2, wherein the splitter tray 7 is provided as needed gripper base 18 or the locking piece portion 18 ₁ a core wire fixed in the introduction of more, the lower stretch termination tray 4, DS / R · TD termination tray 5 and drop termination tray 6 are pivotally pivotally attached to tray mounting portion 13 by pivot portions 4 ₃ , 5 ₃ , and 6 ₃ , respectively, and comb teeth that keep each termination tray in a horizontal state 18 ₂ good to deploy in a state of multiple stacked on the tray accommodating case 12 in the multi-stage, also the tray mount portion 13 of the termination tray 4,5,6 equipped slidably on the tray accommodating case 12 And splitter tray 7 together, slide back and forth Kill way constitute, reserves an area at the tray work by sliding, a preferred embodiment is to so inclined maintained under multiple state in which shifted from drawer forward tray stepwise. (FIGS. 13 and 14)
Such wherein if the tray mount portion 13 Sonaere slidably tray accommodating case 12 through the slide base 13 _1, termination trays 4, 5, 6 and splitter trays 7, the sleeve of the closure body 1 When it is expanded, it can be pulled out to the outside of the sleeve and opened, so that the tray operation can be easily performed.

Further, the termination trays 4 and 5.6 can accommodate a maximum of 4 cores, and connector housing portions 4 ₁ and 5 ₁ provided with a plurality of connector mounting members such as lattice-like ribs in the longitudinal direction of the core wire. , 6 _1, a core wire excess length accommodating portion for accommodating a core wire extra length 4 _2, 5 _2, 6 ₂ and the ones with respectively, at any position of the connector connection portion in consideration of the connection failure In order to be able to be fixed, and to form a stopper piece with a stopper structure that suppresses the pulling and bending of the core wire when the connector is attached / detached, and then withdraws to subscribers who want SS service (dedicated line CB FLET'S Basic) single-core cable and drop cable or outgoing cable DS cable (by core DS connected to the tray) connector and called center line surplus length of the core wire excess length storage section 4 _2, 5 _2, to protect the 6 _2.
Further the gripper base 18 or the locking piece portion 18 ₁ for dropping fixed parts provided in the tray both ends or one side portion, so as to draw a drop cable from any right or left side, moreover to other core during core detachable In order to eliminate the influence of the above, the left and right core wire inlets 19 of the termination trays 4 and 5.6 are provided as individual passage structures for each of the core wires so that the core wire is prevented from being pulled or bent.

The splitter tray 7 provided in the optical cable connection closure is an eight-branch splitter module tray, and is used for pulling a PON service to a subscriber who requests a PON service. A connector connecting portion of the core wire a ₁ and the drop cable d or the DS cable c (connected to the DS tray by the core wire), the extra length of the core wire, and the splitter module B are housed and protected. module mounting portion _{7. 1,} for example a certain splitter module B of the connector socket in the splitter tray 7 with a is provided with detachably by a peripheral wall rib or pawl portion and the rib, also the drop termination tray 6, the gripper fixed Gripper bases 18 are provided at both ends of the tray and can be To be pulled out of Ppukeburu d, moreover with a structure in which the connector C of each terminating tray 4,5,6 respectively SP input line is provided with a connector housing portion 4 _1, 5 1, ₆ can be fixed in distributed right and left, In order to eliminate the influence on other cores when attaching and detaching the core wire, the left and right core wire inlets 19 of the tray are made into individual passage structures for each core wire to form a stopper structure guide that suppresses the occurrence of pulling and bending of the core wire. And safe configuration.

Further, as the termination trays 4, 5, 6, a connector provided with a plurality of connectors C for connecting a core wire which is an outgoing side core wire from the splitter tray 7 and / or the connection tray 9 and a DS core wire. It is designed to store and protect the connecting part and the extra length of the core wire, and it is a connector fixing structure that can be expanded each time it is handled by the subscriber. to allow cord distribution, there a secure configuration by engaging piece portion 18 ₁ of the stopper structure in order not to affect the core wire extra length when pulled out DS core wire side of the connector.

And this drop termination tray 6 is pivotable by pivot portion 6 _3, provided freely tray attaching unit 13 detachably attached to the bearing portion with a cut, absorbing core extra length difference generated by the connection number of the cores the core wire excess length accommodating portion 6 ₂ is formed of, the occurrence of tensile and bending of the cord provided with guide suppressing stopper structure when further connector desorption.
Also provided gripper base 18 of the drop gripper fixing to the tray opposite ends, drop cable d from any of the left or right side, so as to withdraw the d _1, moreover fixed connector part of the SP input line is distributed to the right and left In order to eliminate the influence on other cores when attaching and detaching the core, the left and right core inlets 19 of the tray are configured as individual passage structures for each core to suppress the pulling and bending of the core. A structure guide was formed to provide a safe configuration. (Fig. 10a)

In addition, in order to operate a single core by installing a closure in the tape core cable route, a connecting portion between the tape core wire cut at the center point of the closure and the split core wire and a storage portion for the extra length of the core wire were formed. lower stretch termination trays 4, can be fixed on one side up to 4 connected component as shown FIG. 10b, for example, core wire excess length accommodating portion cord excess to absorb the connector receiving portion 4 ₁ and the core wire extra length to hold the connector C to form a long storage portion 4 _2, so as to draw the ribbon and the split insertion core wire from any of the left or right side, and a structure can be fixed by distributing the iN side or the OUT side. Incidentally, the core-guiding join the club 19 to guide and out a core are to be held accurately cord provided locking piece portion 18 ₁ made of cord pressing piece rotatably.
Further, the lower extension termination tray 4 has a connection portion between the tape core wire cut at the center point of the closure and the insertion core wire and an extra long core in order to install a closure in the tape core cable route and operate the single core. It is used to store and protect the wires, but the main cable side tape core extra length can be stored in the tray, and this tray is arranged on the upper and lower sides so that it can be used in a bilaterally symmetrical form. It is used for easy identification by dividing the outlet of the tape into individual routes, and it is used in a two-layer form in which the DS / R / TD termination tray 5 is incorporated in the tray, but it can also be used in a separate form Good.

  Each tray is a molded product that is integrally molded or individually molded with a synthetic resin, has a substantially rectangular outer shape, and has an inner surface formed in the same or similar shape, and each tray is mounted on the tray fixing base 10. A plurality of trays or tray mounting portions 13 are attached by hinges to be fixed in the closure body 1 at a time.

The splitter tray 7 and the termination trays 4, 5, 6 except for the connection tray 9 are arranged so as to be horizontally held in a multiplexed state in a tray storage case 12 attached to the tray fixing base 10 made of a frame. Each of the termination trays 4, 5, 6 and the splitter tray 7 is detachably attached to a bearing portion having a cut by a pivotal support portion 4 ₃ , 5 ₃ , 6 ₃ , 7 ₃ . 13 is fitted. (FIGS. 13 and 14)
The tray mounting portion 13 is provided so as to be movable slidably for movement until the tray accommodating case 12 bunk shape near the tip of the comb teeth 18 ₂ that has shifted, the area when the tray work by sliding secured, well to the to open inclined maintained under multiple state in which shifted each tray stepwise from drawer forward, during storage is fixed by maintaining the respective trays in a horizontal state on the comb teeth 18 ₂ The

An example of the closure 1 provided with end face plates 2 fitted to both end wall fitting portions of the sleeve of the closure body 1 will be described. The main optical cable A is connected to the end face plate 2 via a spacer (not shown). The cable TM gripping tool 3 and the support wire gripping tool are fixed to each other, and the cable is connected and connected to the cable gripping tool. In addition to the connection tray 9 and the splitter tray 7, the main optical fiber a derived from the main optical cable A includes the lower extension termination tray 4 or the lower extension termination tray 4 and the DS / R / DT tray 5. The combined form and the drop termination tray 6 are processed and drawn out from the end face plate 2 as a cable for dropping, and are wired as the drop cable d, d ₁ or the DS cable c and the tape core wire b.

In order to install the optical cable connection closure of FIG. 1 in the tape core cable route and operate the single core, in the closure wiring with the optical cable A in the closure, the main core a separated by the center tray 8 as shown in FIG. Are connected to the splitter tray 7, the lower extension termination tray 4, the DS / R / TD termination tray 5 and the drop termination tray 6 through the termination board 11, and each tray is configured to allow connector connection. However, it is possible to connect to the cores a and a ₁ having connector plugs and connector sockets at the terminal and to the drop cables d and d ₁ and the DS cable c, so that all optical fiber cores can be connected and stored in a modular manner. As it was.

Also, the closure body 1 is continuous at the hinge portion 1 ₁ is configured by a sleeve that can be split, sleeve open holder 30 for example can adjust the opening state of the sleeve to be expansively opened, in such ring 31 and the hook 32 in FIG. 2 It is good to be able to continue through the connection mechanism which has a latching | locking part in a terminal, and to fasten the closure main body 1 so that the internal sealing performance of a closure can be maintained. In this case, if the sleeve opening holding tool 30 is used, the open state on the working side can be maintained without removing the sleeve during work, and the degree of opening can be continuously adjusted, and there is no obstructing member on the working side. It may be used in a form that is easy to handle.

Further, a cable seal adapter is preferably detachably mounted on the end face plate 2 provided on both end faces of the closure body 1 for use. The end plate 2 provided in the closure body 1, the extended side wall portion 2 ₁ with a cable insertion passage 21 for inserting the optical cable A is provided, and a portion of the cable insertion passage 22 for inserting a variety of cables opened and closed at halved The cable adapter 20 is configured, and the cable adapter 20 is detachably mounted by the holding frame piece 23 and is incorporated into the closure body 1. (FIG. 15) The cable seal adapter 20 is attached to a waterproof end face seal for a cable stored in a closure, and may be provided with a plurality of core insertion passages having slits and seal pieces for inserting various cables. Moreover, it is preferable to use a structure in which a cable with an optional connector can be attached or detached, or a structure that has a waterproof structure with a slit provided with a thin film at each cable introduction port.
The end plate 2 provided in the closure body 1 is detachably mounted with a cable adapter provided with an extended side wall portion having a cable insertion path for inserting various cables, so that the sleeve can be removed from the closure body during operation. A sleeve opening holder that can adjust the open state of the sleeve to be expanded can be provided, and a band type sleeve opening holder that can maintain the working side open state and continuously adjust the opening degree can be attached. In addition, by providing an extended side wall portion on the end face plate provided in the closure main body, an end face seal having a waterproof function when the cable accommodated in the closure by sorting and inserting various cables such as a main cable and a drop cable is inserted. Can be used to safely waterproof the drop cable and DS cable, and various cables can be inserted. A cable adapter that can be opened and closed in half with a cable insertion path to be detachably attached by a holding frame piece, so that various cables such as main cables and drop cables can be sorted and inserted to be waterproof when the cable is housed in a closure It can be used as an end face seal, and the drop cable and the DS cable can be waterproofed to increase safety and handle the separated wiring better.

  Further, a tray mounting portion 13 for rotatably mounting the termination trays 4, 5, 6 including the splitter tray 7 and the drop termination tray 6 is disposed on the tray fixing base 10. For example, a guide groove that opens to the outside is formed in a bearing portion into which a pivot shaft or a hinge shaft provided in the shaft is inserted, and can be inserted into and removed from the guide groove by a narrow cross section formed on the pin shaft. The pin shaft is detachably disposed on the tray mounting portion 13 so as to be locked and supported, and the pin shaft can be removed or inserted at a predetermined position of the narrow cross-section portion in the opening. It is good.

  In order to make the plurality of termination trays 4, 5, 6 and the splitter tray 7 detachable from the tray mounting portion 13, the trays are used individually or as stacked trays alternately stacked in the front-rear direction. Also good. In this case, the bearing portion or the mounting arm portion that engages with the pivotal support portion with the pin shaft protruding from the tray main body may be provided at both side symmetrical positions of the tray mounting portion. Further, it can be configured so that it can be detachably mounted in either the front or rear direction, and each tray in the closure main body 1 can be moved by a slider so that the core wire connection work can be performed easily.

An elastic holding member (not shown) provided with a core wire insertion hole with a separation slit is press-fitted into the core wire lead-in / out portion formed in each tray to ensure the support of the core wire. As the holding member, a nylon tube having an insertion hole or a sponge having a separation slit is selected and used according to the core wire diameter or the number of core wires.
Further, the connector storage section, splitter storage section, and extra long core wire storage section may be divided by selecting guide ribs and side walls as necessary, and a core presser piece or a locking claw for preventing the core wire from floating is integrated. To make sure that the connector that becomes the extra long core wire and the core wire connecting part can be securely held in each tray, or the connector storage part or the extra conductor length storage part is separated and stored separately for each tray. However, the bending of the fiber core wire from the cable insertion portion is extremely small, so that twisting when the core wire is stored can be prevented, and high reliability can be obtained with safe and high density storage.

Incidentally, the in center tray 8, inhibit the occurrence of cord tension and bending as an individual channel structure of the left and right ends forming the core-guiding join the club 8 _each by projecting a grid-like rib needed cord stopper formed in the guide structure, Aru flap attachment holes ₈₂ for attaching the flaps 33 to support and further embrace single fibers a to form a plurality. (Fig. 3a)
The flap attachment holes _82, although the core wire are so be protected and core identification single core wire separated single fiber fitted with a flap 33 that can be bundled removably deployed to the single fibers When each flap 33 is aligned and fixed, when dropping with the remaining single core wire bound to any flap 33, it can be safely attached and detached so as not to affect the single core wire bound to another flap 33. Can work.
Further, as shown in FIG. 6, the flap 33 is formed by connecting two folded holding pieces each having a core wire insertion groove 34, and provided with a locking portion 35 made of unevenness facing the abutting surface. There is bent from the connection portion to constitute a single fiber a so be supported by holding, further said flap flanged projection 36 to be inserted into the mounting hole ₈₂ is projected, the projection 36 is the center tray 8 of being inserted into the flap attachment hole _82, and slide on the surface of the center tray 8 can detachably fixed, the flap removal, can be removed if moving back the flap 33 in the opposite direction by the operation piece 37.

When the splitter processing is performed in the splitter tray 7, the optical cable core and the splitter, and the splitter and the trop cable can be connected in the splitter tray 7 and the drop termination tray 6, and the processing of the splitter outgoing line is also performed. It is desirable to correspond to each tray.
In any case, the splitter tray 7 and the drop termination tray 6 are rotatably held by a multi-stage tray mounting portion 13, and inside the cylindrical closure main body 1 made of a split sleeve as shown in FIG. In the closure main body 1, the movement of the tape core wire and the drop core wire is preferably separated by the wiring processing guide.

The drop cable d, to debit branch lines by drop cord of d _1, when described in Example closure 1 with an end surface plate 2 which is fitted at both ends, via a spacer to the end face plate 2, main trunk line The cable A is penetrated and fixed by the cable gripping tool 3, and a cable tension member is connected to the cable gripping tool 3. The tape core wire branched from the main cable A is branched into a main core wire a and a lead-through core wire, and the drawn-down core wire passes through the connection portion of the connector C and passes through the termination board 11. It is inserted into the splitter tray 7 and the drop termination tray 6 and used by wiring connection.

In the splitter tray 7 or the drop termination tray 6 having the above-described configuration, the drawn core wire selected from the tape core wires separated into the single core wires passes through the termination board 11 and the splitter tray 7. When entering from one of the core wire inlets 19 of the drop termination tray 6, it passes through the core wire passage and the core wire surplus length enters the core wire surplus storage portion and is processed. Then, the output core wire a ₁ is connected to the connector socket of each tray by a connector plug, and is connected to the drop cables d and d ₁ , and the necessary drop wiring can be performed.

Thus, when the optical fiber cable is pulled down to the subscriber's home, etc., each tray layer is open, and when a single fiber is inserted from one side of the core wire inlet to branch into a single fiber, When stored in the extra wire length storage section, it can be taken out to the other core wire inlet side.
In addition, when a single core wire is inserted from one side of the core wire inlet and stored in the core wire extra length storage section, it is put out to either side of both core wire inlet ports depending on how the single core wire is wound. In addition, the core wire inlet that is the same as or different from the core wire inlet that has become the inlet side can be provided as the outlet side without reducing the curvature of the core wire (without adding an overload). Accordingly, it is possible to freely select the entrance / exit side of the core wire and to facilitate the wiring of the single core wire in the optical cable closure.

  Here, the core wire introduction port is provided with a drop gripper or an elastically deformable elastic holding member such as sponge rubber in which a through hole is formed, and is pushed into the grip groove so that the core wire is held and the drop termination is performed. Enters tray 6 and exits drop termination tray 6. If the drop gripping tool or the elastic holding member is interposed in the core wire introduction port in this way, the core wire can be rubbed against the tray body or the tensile impact can be surely passed when the core wire passes through the core wire introduction port. Can be prevented.

  The splitter tray 7 and the termination trays 4, 5, and 6 are mounted so as to be sequentially stacked by being inserted into the tray mounting portion 13 in the tray storage case 12 in the closure body 1. This stacking can be fixed by the tray storage case 12 and the overlapping core wire connection storage trays can be stacked and connected without screwing or the like, so that an optical cable connection closure having a high density storage structure can be obtained (see FIG. 1).

Further, a connector fixing member 28 and a connector fixing base 29 are provided in order to fix the drop cables d and d ₁ as a countermeasure against vibration in the termination board 11, and the connector fixing member 28 is as shown in FIG. In addition, a receiving part 40 having a connector insertion recess 38 and a core wire insertion groove 39 is used as a part integrally formed with a connecting part 41 and a stopper piece 42 having an inverted T-shaped cross section to be engaged with the connector fixing base 29, One end of the connector C, that is, the end of the connector socket is inserted into and supported by the receiving portion 40, and the connecting portion 41 is slid into the holding groove 43 of the connector fixing base 29 by being pushed in, and is locked and fixed by the stopper piece 42. The drop cables d and d ₁ can be safely fixed.
Further, as shown in FIG. 8, the connector fixing base 29 has a plurality of holding grooves 43 formed in a comb shape at one end, and an embedding portion 44 in which the connector fixing member 28 is detachably installed. The connecting portion 41 having a reverse T-shaped cross section of the connector fixing member 28 is slid into the holding groove 43 so as to stand upright, and a mounting portion 44 is extended to the other end. The connector fixing member 28 is connected to the tray fixing base 10 at 44 so that the connector fixing member 28 can be disposed opposite to the termination board 11 so that the drop cables d and d ₁ with the connector C can be securely fixed and maintained. Is good. (FIGS. 2 and 8)

  Each of the stacked termination trays 4, 5, 6 and the splitter tray 7 can be individually moved forward by the tray mounting portion 13, and each layer of the drawn tray can be opened and wired at a predetermined angle and closed. The structure can be pulled back and fixed, and an arbitrary tray can be taken out without causing an influence of loss or the like on the core wire accommodated in the tray by opening / closing each tray or opening / closing each layer.

Further, when the splitter tray 7 and the termination trays 4, 5, and 6 are multi-layer trays, the identification numbers of No. are sequentially assigned to facilitate the handling of the wiring, and each tray is provided in the tray. When it is done, consideration is given to avoid deformation between the stacked trays.
In this case, a desired drop termination tray 6 can be removed from the tray mounting portion 13 from the drop termination trays 6 stacked in multiple stages, or the tray mounting portion 13 can be moved and pulled out so that the overlapping surfaces between the trays can be drawn. It can be opened, and the inner surface side of the tray can be exposed, and the operations of checking, repairing, and connecting the storage core can be easily performed.
Further, in the case of using a separated core wire, the single core wire and the drop cables d and d ₁ are connected and the tray is accommodated. However, the tape core wire introduced into the drop termination tray 6 is fixed by an elastic holding material and is No. . 1 to 4 are branched, arranged and wired in each tray, stored in the tray storage case 12, and protected in the closure main body 1 while being fixed to the tray fixing base 10.

The elastic holding member is used by selecting one having an insertion hole corresponding to the core wire diameter or the number of core wires, and the connecting portion storage portion and the core wire extra length storage portion are defined by selecting guide ribs and side walls as necessary. Alternatively, a cord holding piece or a locking claw for preventing the core wire from being lifted up is integrally formed so that the extra length of the core wire or the connector C serving as the core wire connecting portion is stored in the connector in the drop termination tray 6. part 6 can be held by pushing scheme securely grip grooves to _1, the core wire for each tray 3 is separated organize stored in the same manner each splitter trays 7 and other termination trays 5,4, from the cable insertion portion The bending of the fiber core wire is minimal, so that twisting of the fiber core can be prevented, and high reliability can be obtained with safe and high density storage.

  The position of each tray, such as splitter tray 7 or drop termination tray 6, DS / R / TD termination tray 5 and lower extension termination tray 4, which is configured to enable connector connection used in these embodiments, is changed. Wiring can be processed, so it is easy to draw only the required single core wire from the main line and return it to the main line at any closure in response to demand for light. From the multi-fiber optical fiber ribbon to the optical fiber single fiber It is possible to select one or more of the core wires and connect them to the pulling cable, and the other can be passed through and held as a single optical fiber. The extra cores required for the connection work can be stored together with the connection part by opening or taking out any drop core tray, and the empty cores need to be added by subsequent users. It can be safely used as a single core wire.

  Further, termination trays 4, 5, 6 and a splitter tray 7 provided in this embodiment are slidably provided on the tray storage case 12 via a slide base, and each tray is separated into a single core. By avoiding movement from the work space, it is easy to see the lead wire during single core separation work, wiring work can be done easily and quickly, single core wire can be safely protected, and each tray can be freely Separation, protection, and storage of single cores, such as the installation position allows the core wire to be pulled down, so that it can easily handle aerial loop wiring and the branched core wire can be returned to the main line again. Can be greatly improved.

  Further, according to this embodiment, the termination trays 4, 5, 6 and the splitter tray 7 are provided so as to be rotatable at the tray mounting portion 13, and are arranged so as to be held in the tray storage case 12 in a multiplexed state. Contributes to making the closure more compact, and integrates the connection function and drop function for each single-core wire so that each tray required for function requirements can be added and removed easily. It can be used safely for aerial or terrestrial cables, drop optical fiber cables or collective drop optical fiber cables, protecting the optical cable connections and reducing the extra length It can be housed to increase the use efficiency of the core, and to make a closure for connecting an optical cable excellent in single-core operation and work workability.

Furthermore, in the tray configurations such as the termination trays 4, 5, 6 and the splitter tray 7 according to the embodiment, the connectors can be connected, and the connection work can be performed by using all connectors including modularization in each tray. Maintenance work such as core wire storage work and connection status inspection and repair can be easily performed, and it is excellent in workability, and it is easy to organize and store and increase / decrease for each core wire by integrating the connection function and drop function for each single fiber. In addition, it is easy to add, and it is possible to provide an easy-to-handle optical cable connection closure, such as being able to store the connection part in an extremely compact manner.
In addition, each stacked tray can easily perform optical cable connection, switching, branch connection work, and recollection work without adversely affecting the transmission characteristics of the optical cable. The optical fiber cores that are opened and stored can be quickly taken out, the core wires can be easily identified, the connection parts can be readjusted and repaired easily, and the workability can be greatly improved. .

  Also, according to the combination of each tray, the use of the core wire with connector allows the core wire to be freely inserted into and terminated at each termination tray and connection tray when the core wire is branched and retracted. Access to the connecting part can be simplified, management and assembly / disassembly work can be easily performed, and high density and high reliability can be obtained. In particular, it is possible to connect an empty single core wire to be connected to a drop core wire and hold the rest so that it can be sent to the lower part as an active or empty core wire. Can be used as a required single core wire for subsequent user additions, etc., and can also be used to easily protect a single core wire, and in addition, other core wires can be connected and the connection status can be checked. , Repair, confirmation, adjustment, etc. can be integrated and performed very easily.

  Furthermore, in this example, when it is necessary to switch to a tray of another function due to a carrier change or the like, by using the connector connection and the cable seal adapter, the core wire shrinkage and the core wire generated during the conventional fusion connection and mechanical splice connection are used. The extra length processing work has been eliminated so that it can be simplified.

1 shows a state of use of an embodiment of the present invention, in which (a) is a longitudinal sectional view, (b) is a transverse sectional view, and (c) is a front view taken along line XX. It is an enlarged front view in the YY line in FIG. FIG. 1 shows a termination board used in the example of FIG. 1, (a) is a plan view of a part thereof, (b) is a front view of the use state, and (c) is a front view showing an operation state of FIG. FIG. 3B is an enlarged view of a part of the connector mounting portion in FIG. 3B, (a) is a view from the arrow A, (b) is a view from the arrow B, and (c) is a plan view showing the operation state thereof, (d) ) Is a side view showing the operation state, and (e) is a side view showing the separation action state. FIG. 3B is an enlarged view of a part of another example of the connector mounting portion, where FIG. 3A is a view as viewed from an arrow A, FIG. 3B is a view as viewed from an arrow B, and FIG. FIG. 4D is a side view showing the separation action state. The flap used in the example of FIG. 1 is shown, (a) is a plan view of the unfolded state, (b) is a side view thereof, (c) is a bottom view thereof, and (c) is a front view thereof. The connector fixing member used in the example of FIG. 1 is shown, (a) is a plan view thereof, (b) is a front view thereof, and (c) is a side view thereof. FIG. 1 shows a connector fixing base used in the example of FIG. 1, wherein (a) is a plan view thereof, (b) is a front view thereof, (c) is a side view thereof, and (d) is a longitudinal sectional view taken along the line ZZ. It is. It is wiring system explanatory drawing of the example of FIG. 1 shows a termination tray used in the example of FIG. 1, wherein (a) is a plan view of a drop termination tray, and (b) is a plane in a state in which a DS / R / TD termination tray is incorporated into a lower extension termination tray. FIG. It is a top view which shows the separation state of the splitter tray used in the example of FIG. The connection tray used by the example of FIG. 1 is shown, (a) is the top view, (b) is the side view, (c) is the front view. The tray storage case used in the example of FIG. 1 is shown, (a) is the top view, (b) is the side view. 12A and 12B show the operation state of the tray mounting portion used in the example of FIG. 12, in which FIG. 12A is a front view at the time of the movement operation, and FIG. 12B is a front view at the time of the storage operation. The end plate used in the example of FIG. 1 is shown, (a) is a front view thereof, (b) is a plan view thereof, and (c) is a side view thereof.

Explanation of symbols

A Optical cable B Splitter module C Connector a Main cable a ₁ Output cable b Tape cable c DS cable d, d ₁ Drop cable 1 Closure body 2 End face plate 3 Cable TM gripper 4, 5, 6, Termination tray 4 ₁ , 5 ₁ , 6 ₁ , connector housing part 4 ₂ , 5 ₂ , 6 ₂ core wire extra length housing part 4 ₃ , 5 ₃ , 6 ₃ pivot part 7 splitter tray 8 center tray 9 connection tray 9 adapter 10 tray fixing base DESCRIPTION OF SYMBOLS 11 Termination board 11 ₁ Wiring holding part 12 Tray storage case 13 Tray attachment part 13 ₁ Slide base 14 Connector attachment part 14 ₁ Center tray attachment part 14 ₂ Locking lock part 15 Round-shaped guide 15 ₁ Support shaft 15 ₂ Bearing part 16 Connector socket 17 Locking piece 18 Grasping tool base 19 Core wire inlet 20 Cable adapter 21 DESCRIPTION OF SYMBOLS 22 Cable insertion path 23 Clamping frame piece 24 Guide rib 25 Fitting hole 26 Locking hole 27 Guide groove 28 Connector fixing member 29 Connector fixing base 30 Sleeve release holder 31 Ring 32 Hook 33 Flap 34 Core wire insertion groove 35 Locking part 36 Projection 37 Operation piece 38 Connector insertion recess 39 Core wire insertion groove 40 Receiving part 41 Connection part 42 Stopper piece 43 Holding groove 44 Implantation part 45 Mounting part

Claims (9)

  Termination tray and / or splitter tray having a connector housing portion for housing a connector serving as a connection portion of the optical cable core wire and a core wire surplus length housing portion for housing the extra length of the core wire so that the connector can be connected. A termination board used in a closure for connecting an optical cable, which is housed in the closure body, has a connector attachment in which a plurality of connectors provided on a core wire connected to each tray of the termination tray and / or splitter tray can be detachably attached. Forming a wiring holding part that curves and runs along the outer surface of the single core wire introduced into the termination board, and presses the single core wire on the wiring holding part in a freely detachable manner A round guide that guides and holds the connector mounting part is pivotally supported, and the connector mounting part is provided in the connector mounting part through a connector socket in which the connector is detachably inserted. Termination board on the optical cable connecting closure, wherein   The termination board in the optical cable connection closure according to claim 1, wherein the connector mounting portion is attached via a cylindrical connector socket in which the connector can be detachably installed, and the connector socket can be fitted thereinto. A guide rib and a fitting hole formed between the guide rib serving as a holding groove and a locking piece that can be locked to the locking hole are provided corresponding to the connector socket, and the connector socket is connected to the connector mounting portion. A termination board in an optical cable connection closure characterized in that it can be detachably mounted on a cable.   The termination board in the optical cable connection closure according to claim 1 or 2 is made of a U-shaped cross-section member having a wiring holding portion of a curved outer surface, and a round guide along the curved outer surface is a bearing. And a center tray mounting portion and a locking lock portion for closing and fixing the guide and for receiving the opening, and a connector mounting portion at the lower portion. A single core wire separated from the core wire introduced into the center tray fixed to the tray mounting portion is dropped and held along the wire holding portion by the rounded guide, and a connector connected to the single core wire is attached. A termination board for an optical cable connection closure, which is detachably attached to the connector mounting portion via a connector socket.   The termination board in the optical cable connection closure according to claim 2 or 3, wherein the connector fixing member for holding the connector attached to the connector mounting portion of the termination board via the connector socket is formed by the connector fixing base. A termination board for a closure for connecting an optical cable, characterized by being disposed opposite to a connector mounting portion.   4. The termination board in the optical cable connection closure according to claim 2 or 3, wherein the connector fixing member is reverse in cross section where the connector fixing base is engaged with a receiving portion having a connector insertion recess and a core wire insertion groove. A termination board for a closure for connecting an optical cable, wherein a T-shaped connecting portion and a stopper piece are integrally formed, and the connecting portion is detachably fitted into a holding groove of the connector fixing base.   6. The termination board in the optical cable connection closure according to claim 4 or 5, wherein the connector fixing base has a plurality of comb-shaped holding grooves at one end, and a connector fixing member is detachably mounted on the holding groove. A termination board for a closure for connecting an optical cable, characterized in that it comprises a planting section to be installed and an attachment section extending to the other end of the tray fixing base.   The optical cable connection closure according to claim 5 or 6, wherein the splitter tray is provided with a plug in a core wire connected to the termination board, and a plurality of core wires connected to each termination tray. A termination board used for a closure for connecting an optical cable, characterized in that a splitter tray provided with a socket is provided in a splitter tray which enables connector connection.   8. The optical cable connection closure according to claim 5, claim 6, or claim 7, wherein the termination tray is provided with a plurality of connector housing portions divided into left and right, and the core wire from the splitter tray is fixed by the introduction portion. In the state where a drop fixing member is provided as necessary, a plurality of bottom extension trays, DS / R / TD termination trays, and drop termination trays are stacked on the tray fixing base via tray mounting portions, respectively. A termination board used for a closure for connecting an optical cable, characterized in that it is pivotally attached by a pivot part.   7. The optical cable connection closure according to claim 7, 8 or 6, wherein a connection portion storage portion for storing a connection portion of the optical cable core wire, and a core wire extra length storage portion for storing a core wire surplus length. Provided with a connection tray configured to enable connector connection, and a tray mounting portion is slidably disposed in a tray storage portion having a plurality of comb teeth for holding the termination tray in a horizontal state. A termination board used for an optical cable connection closure, wherein the end tray can be slid back and forth.

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