JPH09236710A - Core wire connection surplus length housing case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make useful in the prevention of momentary breakage by housing a connected part on an individual basis without twisting a tape when the tape core wire is wound and housed within a case and simultaneously to miniaturize a straight type or capsule type closure by enabling the extraction of a tape core wire or single core wire in plural directions. SOLUTION: In this core wire connection surplus length housing case, a case body 4 is equipped with a housing part 2 for a connector for core wire-connecting with which core wires from core wire-introducing and extracting parts 1 are mutually connected and a housing part 3 for core wire surplus length connected to the connector, and a freely fittable and unfittable case cover 5 is arranged in the case body 4. Then, the surplus length process of the connection core wire is safely and surely performed and handling of an optical cable is remarkably simplified by opening and arranging the core wire-introducing and extracting part 1 in the four directions in each corner of the square case body 4, and simultaneously providing the connector housing part 2, which is capable of restraining the connector mutually connecting the core wire introduced in the case, within the case body 4 and freely attachably and detachably arranging a surplus length housing jig 7, which is equipped with a winding reel 6 for winding the core wire surplus length connected with the connector, within the case body 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cable connection extra length storage case for protecting a connection portion of a communication cable, particularly an optical cable having an optical fiber cable.

[0002]

2. Description of the Related Art Generally, in an optical cable, a storage device for connecting a core wire is used for the purpose of protecting a connection part of the optical cable of an overhead closure or an underground closure, and a branch cable branched from this closure is attached to an outer wall surface of a building. It is used by being connected as an incoming optical cable to an optical outlet installed in a building through a connection extra length storage case, and a core connection extra length storage case is also used for a core connection branch of the optical cable in the building.

[0003]

SUMMARY OF THE INVENTION In this conventional core extra length storage case as a storage article for connecting a core wire, a tape core wire or a single core wire is led in and out, and a connector at a connecting portion and a core connected to the connector. Although it accommodates the extra wire length, there is a problem that the twisting phenomenon of the core wire frequently occurs when the core wire is wound and stored, and there is an adverse effect of a momentary disconnection due to the entanglement of the connection parts such as MT connector, mechanical splice, or fusion part. There is M
There was a problem that the closure became large in size when the closure was installed on H, HH, etc. The present invention is intended to eliminate these conventional drawbacks, and when the tape core wire is wound and stored in the extra wire connection length storage case, there is no twist of the tape and the connection portion is stored individually and instantaneously cut. In addition to being useful for prevention, tape cores or single cores can be drawn out in multiple directions, which allows the miniaturization of linear type or capsule type storage cases, and the stacking configuration of storage items makes it easy to add connections. In addition to the above, it is an object of the present invention to provide a closure, which has a simple structure and is inexpensive, which can significantly simplify the handling without screwing the screw member inside.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a connector for core wire connection in which a core wire lead-in / out portion for leading in / out a tape core wire or a single core wire and core wires from the core wire lead-in / out portion are connected by a connector. In a core wire connection extra length storage case provided with a connector housing part and a storage part for the core wire extra length connected to the connector, with the core wire lead-in / out opening provided at each corner of the case, A connector accommodating portion that can lock the connectors that connect the core wires introduced into the case is provided in the case, and the extra length storage jig includes a winding reel that winds the extra core wire connected by the connector. The tool is detachably placed in the case.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION In the optical cable connection extra length storage case of the present invention, the tape core wires introduced into the case body from the core wire lead-in / out portion by removing the case lid are connected to the upper side of the winding reel of the extra length storage jig and Wrap the lower side in a loop so that no twisting occurs. In this extra length storage jig, the locking projection is fitted to the locking receiving part projecting on the case body, and the reel stop member is stopped on the fitting wall on the case body side. After winding the wire around the extra length storage jig, while holding the extra connection length, insert a holder such as sponge into the gap between the reels and temporarily fix the tape core wires so that they do not move. Next, the tape core wires having the extra length for connecting the core wires are connected to each other by a connector or the like, and the connector is fitted and locked in the connector accommodating portion with the holder removed and the temporary fixing is removed. The core wire extending from the storage jig is also bent in a loop shape in the circumferential direction and placed in the core wire winding passage and stored in the case body with the core wire retainer piece. As long as it covers the case lid, the core wire connection part can be fitted into the connector storage part individually, so it is possible to prevent momentary disconnection, and moreover the tape core wire or single core wire can be output from four directions. The size of the closure can be miniaturized even when the closure is installed on the MH, MH, HH, etc.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the examples of FIGS. 1 to 6. A core wire lead-in / out portion 1 for leading in and out a tape core wire or a single core wire S of a branch optical cable, and the core wire lead-out. The case body 4 is provided with a connector accommodating portion 2 into which a cord connecting connector in which the cords from the insertion portion 1 are connected to each other by a connector P can be fitted and locked, and an accommodating portion 3 with an extra cord length connected to the connector. A cord connection extra length storage case provided with a case lid 5 that can be inserted into and removed from the case body 4, and the cord lead-in / out portions 1 are provided in four directions at each corner of the rectangular case body 4. At the same time, a connector accommodating portion 2 capable of locking the connector P that connects the core wires introduced into the case is provided in the case body 4, and the winding reel 6 around which the extra core length connected by the connector is wound. Attaching and removing the extra length storage jig 7 in the case body 4 They are deployed in the standing.

As the core wire lead-in / out section 1, tongue-shaped pressing ribs 11 are alternately projected between the partition walls at the corners of the case body 4, and the case lid 5 is stacked on the pressing ribs 11. An opening for leading in and out of the core wire is formed on the side surface of the case, and a core wire winding passage 8 for winding the extra core length in a loop around the inner surface of the side wall of the case body 4 is defined. As shown in the figure, the connector accommodating portion 2 and the cylindrical fitting wall 9 into which the extra length accommodating jig 7 can be fitted are provided in the central portion so as to project, and the core wire extra portion of the case body 4 is formed at the upper edge of the side wall. A plurality of core wire pressing pieces 10 protruding into the long storage portion are provided. The case body 4 is formed with locking holes 12 at the corners, and the locking holes 1
The case lid 5 provided with the locking claws 13 to be fitted into the housing 2 can be fitted and removed with one touch. [Figs. 2 and 3]

As shown in FIG. 4, the connector accommodating portion 2 includes a connector fitting portion which is divided by a plurality of partition walls 15 over a side wall provided with a plurality of insertion slits 14 at a distance. A plurality of concave portions are arranged in parallel, and guide walls 16 for guiding the core wire S in the circumferential direction are continuously provided on both side walls,
It is preferable to provide the cord holding pieces 17 and 18 on the upper edge of the guide wall 16 to form the cord extra length storage portion 3. The partition wall 15 has an abutment rib (shown) for holding the connector P on the opposite surface or a gap width smaller than the connector width so that the connector P can be held and locked easily.

Further, the extra length storage jig 7 has a structure for preventing twisting of the core wire, which comprises a reel 6 for winding the core wire and a reel stop member 19 projecting downward from the center of the reel 6. Therefore, the case main body 4 is provided with a locking projection 21 that can be fitted into and removed from the locking receiving portion 20 that is projected (FIG. 5). Then, the core wires introduced into the case body 4 are wound around the winding reel 6 of the extra length storage jig 7 on the upper side (around the reel bubbling) and the lower side (around the reel stop member) respectively so as not to twist in a loop shape. It is designed to be used. In this extra length storage jig 7, the locking projection 21 is fitted to the locking receiving portion 20 projecting from the case body 4, and the reel stop member 19 is fixed to the fitting wall 9 on the case body side. In this state, after winding the core wire around the extra length storage jig 7, press a holder such as sponge into the gap between the reels with the extra connection length,
The tape cores are temporarily fixed so that they do not move. Next, the tape core wires having the extra core wire connection length may be connected to each other by a connector or the like, and the connector may be fitted into the connector accommodating portion 2 in a state where the holder is removed and the temporary fixing is removed. The method of providing the lock receiving portion 20 and the lock protruding portion 21 is selected and provided for the corresponding members, that is, the case body 4 and the extra length storage jig 7. Further, the extra length storage jig 7 having the winding reel 6 is fitted into the cylindrical fitting wall 9 protruding from the case body 4, and the reel stop member 19 is fitted into the guide groove 22 formed in the fitting wall 9. It has a structure that prevents the core wire from twisting to prevent it from turning and is assembled with one touch. [Fig. 6]

The case main body 4 is provided with a bracket 24 having a mounting hole 23 to the inner wall surface of the building or the closure, and is disposed inside the inner wall or the closure through the bracket 24, and the case main body 4 is covered. The case body 5 and the case lid 5 are formed into a square, a rectangle of a rectangle or an ellipse by injection molding of synthetic resin, and the cable retainer is arranged in the core full-length storage portion 3 at a predetermined interval. The cords 10, 17 and 18 are designed so that the core wire can be wound and held in a smoothly curved loop so that the transmission characteristics are not adversely affected. In this case, the core wire pressing pieces 10 projecting from the inside of the side wall of the case body 4 are provided at appropriate intervals, and the core wires are provided around the fitting wall 9 of the extra length storage jig 7 and the connector accommodating portion 2. The winding passage 8 is preferably defined. In addition, the case lid 5 is an extra length storage jig 7 for the core wire.
It is possible to form a fitting convex surface or a fitting concave surface as needed, by having an abutting surface that can hold and hold the fitting inside the fitting wall 9.

In the optical cable connection extra length storage case according to this embodiment, when connecting the lead-in optical cable, first, the case body 4 is fixed to the inner wall surface of the building with the bracket 24 using a screw or the like, and the core wire. The core wire S from the lead-in / out portion 1 is wound around the extra length storage jig 7 and then connected by the connector P, and the connector P is fitted into the connector storage portion 2 to set the extra core wire length to the core wire winding path. If it is extended through the core wire extra length storage portion 3 and stored and then the case lid 5 is fitted to the case body 4, the core wire can be easily assembled and the connector can be stored and held in individual units. Therefore, it helps prevent instantaneous interruptions, and it is possible to easily add more connections.

[0012]

As described above, according to the present invention, the core wire lead-in / out portions are provided at the respective corners of the case by opening, and the connector accommodating portion capable of locking the connectors connecting the core wires introduced into the case is provided in the case. And a detachable storage jig provided with a winding reel for winding the extra core length connected by the connector is detachably provided in the case. Without twisting, the connection part is stored in individual units to help prevent momentary disconnection, and the tape core or single core can be drawn out in multiple directions, which allows the miniaturization of linear type or capsule type closures. In addition, the stacking configuration of the storage items makes it possible to easily increase the number of connecting parts and to significantly simplify the handling without the work of fixing the screw members inside.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, FIG. 1A is a plan view showing the inside with a lid removed, and FIG. 1B is a plan view of the lid.

FIG. 2 is a vertical cross-sectional view of the lid body separated state of FIG.
-A side view cut along line A, and (b) is a front view cut along line BB.

3A and 3B are enlarged detail views of a corner portion of FIG. 1, in which FIG. 3A is a plan view and FIG. 3B is a vertical sectional view taken along the line C-C.

FIG. 4 is an enlarged detailed view of the connector housing portion of FIG. 1, (a)
Is a plan view and (b) is a vertical cross-sectional view taken along the line DD.

FIG. 5 is a twist prevention jig used in the example of FIG.
(A) is a plan view, (b) is a front view, (c) is a bottom view, (d) is a side view thereof, and (e) is a perspective view seen from the bottom side.

6A and 6B are separated state diagrams showing a part of details of FIG. 1, in which FIG. 6A is an enlarged vertical sectional view taken along line EE, and FIG. 6B is an enlarged vertical sectional view taken along line FF.

[Explanation of symbols]

 S core wire P connector 1 core wire lead-in / out portion 2 connector housing portion 3 core wire extra length housing portion 4 case body 5 case lid 6 winding reel 7 extra length storage jig 8 core wire winding passageway 9 fitting wall 10 core wire Presser piece 11 Presser rib 12 Locking hole 13 Locking claw 14 Slit 15 Partition wall 16 Guide wall 19 Reel stop member 20 Locking receiving portion 21 Locking protrusion 24 Bracket

Front page continuation (72) Inventor Yasuhiko Shinmachi 4-35-3 Yoyogi, Shibuya-ku, Tokyo Japan Recom Co., Ltd.

Claims (4)

[Claims] 1. A core wire lead-in / out portion for leading in / out a tape core wire or a single core wire, a connector accommodating portion of a core wire connecting connector in which core wires from the core wire lead-in / out portion are connected by a connector, and a connector. In a core wire connection surplus length storage case that is provided with a storage part for a continuous core wire length that is connected to the case, a core wire lead-in / out part is provided at each corner of the case, and the core wires that are introduced into the case are interconnected. A connector accommodating portion capable of locking the connector to which the connector is connected is provided in the case, and a surplus length storage jig provided with a winding reel for winding the extra core length connected by the connector is removably provided in the case. The extra-length storage case for connecting the core wire. 2. The connector accommodating portion has a plurality of connector fitting recesses arranged side by side and having a plurality of partition walls, which are separated by a plurality of partition walls. 2. The core wire connection extra length storage case according to claim 1, wherein guide walls for guiding the core wire in the circumferential direction are continuously provided on both side walls. 3. A cord twist preventing structure, wherein the extra length storage jig comprises a reel portion for winding the cord and a reel stop member projecting downward from a central portion of the reel portion. 3. The core wire connection extra length storage case according to claim 1 or 2, further comprising a locking protrusion that can be fitted into and disengaged from a locking receiving portion provided on the case. 4. A core wire pressing piece projecting inwardly on the side wall of the case is provided at appropriate intervals, and a core wire winding passage is defined around the extra length storing jig and the connector storing portion. The core wire extra length storage case according to claim 1, 2, or 3.