JPH1010338A - Optical cable connection box - Google Patents

Abstract

PROBLEM TO BE SOLVED: To simplify connection wiring work of an optical cable and to improve a safe and excellent handling characteristic. SOLUTION: This box is an optical connection box 10 incorporating a terminal module 5 having an optical cable connecting plug 3 and/or connector 4 and a connection modules 6, and a coated optical fiber surplus housing part 7 connected to respective modules 5, 6 in a case main body 2 with a door 1, and the terminal modules 5 and the connection module 6 are provided respectively with a fiber cord separation part, a coated optical fiber connection part, coated optical fiber extra length housing parts 7, 8 and a coated optical fiber hold part 9, and by oppositely arranging them on brackets 13, 14 with a hinge shaft in the case main body 2 attachably/detachably and turnably through attaching members 11, 12, connection processing handling is simplified, and workability is improved remarkably, and discrimination is improved, and optional coated optical fiber handling is possible also, and moreover, only by putting connector/adapter in, the coated optical fiber is easily switched/exchanged and extended, and the box is mad high in safety, low in cost and compact in size.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical cable connection box used for connection or branch wiring of a tension member and an optical cable having an optical fiber core, and more particularly, to fix a cable such as an optical cable including a tension member to a case body. The present invention relates to an optical cable connection box that is held in a state.

[0002]

2. Description of the Related Art Generally, when connecting an optical fiber having an optical fiber core and an optical cable having a tension member, it is essential to fasten the tension member. It is indispensable to have extra length processing with a margin in the core wire. For this reason, conventionally, a large number of storage trays for storing the connection portion and the extra length of the core wire after the core wire connection are used.

[0003]

However, in the conventional optical cable connection box, a special case or extra length processing member using a sheet is required, many assembly parts are required, and handling of an arbitrary cord is troublesome. However, not only is identification difficult, but it is also difficult to replace or add cores, and there is a problem in that the structure is complicated in terms of core connection safety and workability, resulting in high costs. The present invention is intended to eliminate these conventional disadvantages. The use of a prefabricated termination module and a connection module is easy to handle and greatly improves the workability, and has good discrimination and good discretion. It is intended to provide a compact, low-cost optical cable connection box that is capable of handling cables and is easy to replace and replace cores by simply inserting a connector adapter, and is also highly safe. is there.

[0004]

SUMMARY OF THE INVENTION The present invention provides a termination module and a connection module having a plug and / or a connector for connecting an optical cable to a case main body having a door, and an extra-core-length storage portion connected to each module. In the optical cable connection box, the termination module and the connection module each have a single-core separation portion, a core connection portion, a storage portion for a core excess length and a core holding portion, and via a mounting member. It is detachably and rotatably opposed to the case body.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In an optical cable connection box according to the present invention, a door is opened, a tension member of a cable is fixed to a tension member holding portion provided at a cable introduction portion of a case main body, and a drawn core wire is formed. The core wire connected to the wiring in the end module or the wiring material in the connection module and branched from the module is taken out of the box via the floor cable lead-out portion and routed. In the box, the termination module and the connection module are connected, the excess core length is guided and stored in the guide reel, and each prefabricated module is rotatably mounted on the case body, and the inside is opened. Because it is used, it is easy to handle any core, easy to understand at a glance, has good discrimination and is easy to handle, and secures and holds the excess core length in each module, contributing to preventing twisting of the core. Replacement and expansion can be performed with a single touch, making connection and branching operations safe and easy.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS.
With reference to FIG. 2, a termination module 5 and a connection module 6 having a plug 3 and / or a connector 4 for connecting an optical cable to a case body 2 having a door 1 and a core wire connecting to each of the modules 5 and 6 are described. An optical cable connection box 10 having a long storage section 7 therein, wherein the termination module 5 and the connection module 6 are respectively provided with a single-core separation section, a core connection section, storage sections 7 and 8 having an extra core length, and a core. The case main body 2 includes a wire holding portion 9 and
The brackets 13 and 14 with hinge shafts
The optical cable connection box is provided so as to be rotatably opposed to the optical cable connection box.

The case main body 2 has a plurality of core wire guide reels 15 between the termination module 5 and the connection module 6, and a large number of guides 17 for guiding to a floor cable lead-out portion 16 are arranged in parallel. End module 5
An inner door 18 that can be opened and closed is provided on the side, and tension member gripping portions 21 are provided at cable introduction portions 19 and 20 having insertion bushes 22. (FIGS. 1 to 3)

[0008] As the termination module 5, M
The tape provided with the T ferrule is branched into a large number at the single-core separating section, and the wiring material in the termination module having the SC simple plug 3 or the MPO simple plug at the other end of each single core wire is stored and held. However, the inside of the termination module 5 includes a cable insertion portion 31 having a rubber bush 30 for holding a cable, and a core winding portion 8 having a core holding portion 9.
And a compartment having an SC or MPO simple plug 3 and a core winding portion 8, which is divided into two sections by a partition wall 32 and is prefabricated. The case is used to prevent twisting without the core length being entangled, and members that are not desired to be tampered with by factory-produced members are selected and housed together in one room to identify and confirm the cores. It should be easy to do. (FIGS. 4 and 5)

It is to be noted that an engaging portion, for example, an uneven engaging portion 33 which can be fitted and fixed to the case body 2 outside the termination module 5.
Is provided so that the rotatable termination module 5 can be stopped and held on the case main body 2 by the mounting member 11 without wobbling. The termination module SC type and the MPO type (FIG. 5) as shown in FIG. 5 are used. In order to improve workability and to prevent twisting of the fiber, it is preferable to employ a rotary type module that does not move the fiber. It is possible to easily seal the termination.

As shown in FIGS. 6 and 7, the connection module 6 accommodates and holds a wiring material in a connection module having an SC connector or an MPO connector at one end. Trays 6 ₁ , 6 ₂ provided with a cable lead-in / out portion 34 having the guide 24, and having a core winding portion 38 and an accommodating portion 37 of a connection portion such as a connector at the partition wall having the core holding portion 39. a pair of coupled openably and closably by a hinge portion 6 _3, used as a compact structure provided with engagement irregularities portions 35 and 36 to open and close edge.

On the outside of the connection module 6, a locking portion that can be fitted and fixed to the case main body 2, for example, the concave and convex locking portion 2
6, the connecting module 6 which is rotated by the mounting member 12 can be stably stopped and held in the case main body 2 so that workability and safety can be easily improved. It is preferable to utilize the guide reel 15 for storing the extra length.

The terminating module 5 and the connecting module 6 are both preferably used as a combination structure that also serves as a core wire extra winding, and that has a combined structure that can be split or expanded into two parts so that the inside can be exposed. It is advisable to use a different type. Also, the wiring material in the termination module is a ready-made conversion core having a single-core separating portion where a tape provided with a ferrule at one end is branched into a large number and a simple SC or MPO simple plug is provided at the other end of each single core. It is convenient to use the SC connector or MP at one end.
It is preferable to use a ready-made core wire provided with an O connector. Further, each of the modules 5 and 6 can be individually attached to and detached from the brackets 13 and 14 by the mounting members 11 and 12, thereby facilitating the wiring inspection processing operation. Is easy to handle.

The core wire storage sections in the modules 5 and 6 divide the core wire winding sections 8 and 38 for winding the cable core into a central portion, and have housing sections such as connectors on one side or both right and left sides. A plurality of partition walls partitioning 7, 37 protrude. The wire holding portions 9 and 39 of the cable pressing pieces are integrally formed on the partition walls as needed. These cable retainers hold down and hold the optical cable wound around the core winding portions 8 and 38.

In the optical cable connection box 10 according to this embodiment, the termination module 5 and the connection module 6 can be easily handled outside the case main body via the mounting member, and can be removed and taken out as needed. The optical fiber core of each optical cable is led to the cable winding / connection part, and the extra length is wound and held in the core storage part. Switching can be easily performed, and replacement and extension can be performed with a simple operation of inserting this module.

[0015]

According to the optical cable connection box of the present invention, a termination module and a connection module having a plug and / or a connector for connecting an optical cable in a case body provided with a door, and a core wire connecting to each module. An optical cable connection box containing a long storage section, wherein the termination module and the connection module each include a single-core separation section, a core connection section, a storage section for a core excess length, and a core holding section; It is detachably mounted on the case main body via the, and is rotatably opposed, so that it can be safely connected with a prefabricated module, and it is possible to handle any core wire, and it is easy to handle and at a glance It is easy to understand and can greatly improve discrimination, and SC / MPO can be easily replaced and expanded simply by inserting a connector adapter. In addition, simplification of the internal parts inside the box makes effective use of space, realizing compactness and improved workability, one-touch switching operation, and greatly improved workability without tools. After the connection, the connector plug and the adapter can be connected, and the fixing of the connection members is centralized in a central storage unit, so that storage is easy, safe and secure cable wiring is possible, and the configuration is simple and inexpensive and easy to handle. An optical cable connection box can be provided.

[Brief description of the drawings]

FIG. 1 is a front view showing an inside with a door opened in an embodiment of the present invention.

FIGS. 2A and 2B are longitudinal sectional views of the example of FIG. 1, wherein FIG. 2A is a sectional plan view taken along line AA, and FIG. 2B is a sectional plan view taken along line BB.

3A and 3B show the appearance of the example of FIG. 1, wherein FIG.
(B) is a right side view, and (c) is a left side view.

4 shows the termination module SC type of the example of FIG. 1,
(A) is a side view thereof, (b) is a partially cut front view, and (c).
FIG. 4 is a plan view cut along line CC.

5A and 5B show a termination module MPO type, wherein FIG. 5A is a side view, FIG. 5B is a partially cut front view, and FIG. 5C is a plan view thereof.

6 shows an expanded state of the connection module of the example of FIG. 1,
(A) is a front view, (b) is a side view, and (c) is a bottom view.

7A and 7B show a state in which the connection module of FIG. 6 is closed, (a) is a front view, (b) is a side view, and (c) is a bottom view.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Door 2 Case main body 3 Plug 4 Connector 5 Termination module 6 Connection module 7 Core wire connection part accommodation part 8 Core extra length accommodation part 9 Core wire holding part 10 Optical cable connection box 11,12 Mounting part 13,14 Bracket 15 core Wire guide reel 16 Floor cable lead-out part 17 Guide 18 Inner door 19, 20 Cable introduction part 21 Tension member grip part 32 Partition wall 33 Irregular locking part 34, 35 Locking concave and convex part 37 Connection part accommodation part 38 Core wire winding part 39 core wire holding part

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Ichiro Tanaka 4-35-3 Yoyogi, Shibuya-ku, Tokyo Inside Japan Recomm Inc. (72) Inventor Kimio Ando 3-19-2 Nishishinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Telephone Co., Ltd. (72) Inventor Kenichi Nakazawa 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Sadaaki Takano 3-19-2 Nishi-Shinjuku, Shinjuku-ku, Tokyo Nippon Telegraph and Telephone Stock In company

Claims (6)

[Claims] An optical cable connection box in which a termination module and a connection module having a plug and / or a connector for connecting an optical cable in a case main body provided with a door, and a core extra length storage portion connected to each module are provided. The termination module and the connection module each have a single-core separation portion, a core connection portion, a storage portion for a core excess length, and a core holding portion, and are detachable from the case body via an attachment member, and An optical cable connection box, which is rotatably opposed to each other. 2. The case body has a plurality of core wire guide reels between the termination module and the connection module, and a large number of guides for guiding to a floor cable lead-out portion are arranged in parallel, and the case main body is provided on the termination module side. The optical cable connection box according to claim 1, further comprising an inner door that can be opened and closed. 3. The termination module according to claim 1, wherein a single end of the tape provided with the MT ferrule at one end is branched into a large number at a single-separation portion, and an SC simple plug or an MPO simple plug is provided at the other end of each single core. 3. The optical cable connection box according to claim 1, wherein the wiring material in the module is stored and held. 4. The optical cable connection box according to claim 1, wherein the connection module houses and holds a wiring material in the connection module having an SC connector or an MPO connector at one end. 5. The image forming apparatus according to claim 1, wherein the termination module includes a cable insertion portion having a rubber bush for gripping the cable, an image chamber having a core wire winding portion and a connector housing portion,
4. The optical cable connection box according to claim 3, comprising a case partitioned by a partition wall into an image room having a PO simple plug and a core winding portion. 6. The optical cable connection box according to claim 5, wherein the termination module includes a cable lead-in / out portion, and a tray having a core winding portion and a connector housing portion is connected to be openable and closable by a pair of hinge portions.