JPH0338568B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] At the end of an optical fiber cable, the fiber core wire is sometimes coded to improve mechanical strength. In such cases, the connection of the cord is usually made by means of a connector.

The present invention relates to a device for connecting the cords of multi-core optical fiber cables using a connector as described above, and particularly relates to a connector and a portion for processing the excess length of the optical fiber cord.

[Configuration of the Invention] As shown in FIGS. 1 to 5, the present invention is configured by the following elements.

1 Connecting rod 10, 1 installed between the ends of two multi-core optical fiber cables to be connected
2.

2 Flanges 42 on both sides of the disc-shaped winding frame 40
A plurality of optical fiber surplus length processing reels 38 (FIG. 2) are provided with.

3 Extra length storage cases 22 attached to two spaced apart locations of the connecting rods 10 and 12.

Inside this case 22, there are a plurality of surplus length processing reels 38 around which the optical fiber cord is wound, with the axis of the winding frame 40 oriented in a direction perpendicular to the connecting rods 10, 12. They are designed to be stored side by side.

4. A connector storage case 50 attached to the connecting rod at an intermediate position of the extra length storage case 22.

The case 50 is adapted to accommodate all or part of a number of connectors 18 connected to fiber optic cords.

[Example] The case of a 24-core cable will be explained as an example.

・About connecting rods In Figures 1 and 2, 10 and 12 are connecting rods, which are installed in upper and lower stages, for example, between the gas dams 14 formed at the ends of two multi-core optical fiber cables to be connected. .

- Regarding the extra length storage case and extra length processing reel In "Figure 2", 22 is the extra length storage case. Use two items with the same structure. these are,
They are attached to the connecting rods 10, 12 at appropriate intervals.

Reference numeral 24 denotes its main body, which consists of, for example, two square boxes 30 with rectangular end plates 26 on the inside and trapezoidal end plates 28 on the outside. The upper ends of the end plates 26 are connected by a member 32. The width of the member 32 is equal to the width A of the connecting rod 10.

The member 32 is screwed to the connecting rod 10 and the ear 3
4 to the connecting rod 12. With the above, main body 2
4 is fixed to connecting rods 10 and 12.

For example, the inside of each box 30 is divided into two parts by a partition 36.
divided.

Reference numeral 38 denotes a reel for processing extra length; for example, a rectangular flange 42 is provided on both sides of a disc-shaped winding frame 40.
It has been established. Six of these are stored in each box 30 (three on each side of the partition 36).

44 is a presser lid of the extra length storage case 22.
After all the reels 38 are stored in the main body 24, a cushion material 48, for example, is placed over the main body 24, and the outer side of the end plate 28 is pressed by the side plate 45 and fixed with screws 46.

- Regarding the connector storage case 50 is a connector storage case, which is attached to the connecting rods 10 and 12 at a position midway between the two extra length storage cases 22.

52 is the main body of the connector storage case 50 (second
), a side plate 56 is provided on the inside of the bottom plate 54, a side plate 58 is provided on the outside, and a partition 60 is provided in the middle.
It consists of two storage parts 62.

As in the case of the extra length storage case 22 above,
The upper ends of the side plates 56 are connected by a member 64.
The width of the member 64 is equal to the width A of the connecting rod 10.

The member 64 and the ear 66 are screwed to the connecting rod 10 to fix the main body 52.

Attach the guide plate 68 on the bottom plate 54 (third
figure). Each guide plate 68 has a groove 70.

Reference numeral 72 denotes a presser lid of the connector storage case 50. A side plate 74 presses the side plate 58 of the main body 52 from the outside. 76 is a screw. Presser foot lid 7
A guide plate 78 having grooves 80 is also attached to 2 (FIGS. 3 and 4).

The width B of the main body 52 (FIGS. 2 and 3) is set to a length that makes it easy to store the connector after it is connected. Third,
As shown in FIG. 4, when the adapter 20 is placed on the guide plate 68, its flange 21 fits into the groove 70, and the adapter 20 becomes stable.

Further, the width C between the side plate 56 and the partition 60 of the main body 52 and between the side plate 58 and the partition 60 is set to a length in which three adapters 20 are arranged side by side as shown in FIG. Moreover, their height D is such that the adapters 20 can be stacked in two layers.

Therefore, between each partition, insert 3 rows of adapters 20 into 2
Arrange them in rows and cover with a presser lid 72. Then, the groove 80 of the guide plate 78 fits into the flange 21 of the upper adapter 20. As a result, all the adapters 20 are fixed within the adapter storage case 50.

- How to use this device (excess length processing procedure) The case of 24 cores will be described as above.

1. Wrap, for example, two optical fiber cords 16 around each reel 38 to process the remaining length 16'.
The optical fiber cord 16 is wound in the order of wire number and stored in the main body 24 together with the reel 38. Twelve reels 38 are stored in the extra length storage case 22 on one side,
The remaining length 16' of the 24 optical fiber cords 16 is processed. Then, put on the presser foot lid 44.

Process the cable on the opposite side in the same way.

2 Plug 19 at the tip of each optical fiber cord 16
into the adapter 20 and connect. Place each adapter 20 in the adapter storage case 50 as described above.
The process is completed by placing a sleeve (not shown) on the outside of the entire product processed as described above, and attaching both ends of the sleeve to, for example, the gas dam 1.
4 is airtightly connected.

- In the case of different types of connectors When connecting the optical fiber cord 16 with a type of connector that does not use the adapter 20 (only a plug and receptacle), the entire connector should be housed in the adapter storage case 50.

This is the case when the claims refer to "the entire connector." Also, "part of the connector" refers to adapter 2 as described above.
This means that only 0 is stored.

Note that if the external shape of the connector 18 or the adapter 20 changes, the method of storing them in the adapter storage case 50 also changes.

[Effects of the Invention] 1. An optical fiber surplus length processing reel in which flanges are provided on both sides of a disc-shaped winding frame, and a surplus length storage case capable of storing a large number of these surplus length processing reels side by side. Therefore, as described above, the extra length of the optical fiber cord 16 with a connector can be wound around the reel 38, and the reel 38 can be stored in the extra length storage case 22. Therefore, it is easy to process the excess length.

In other words, there is a method of wrapping the extra length around a processing plate that has been installed in a predetermined position, but in that case, it is not possible to perform high-density processing because it requires a gap for inserting hands or tools.

In the case of the present invention, the extra length is wound onto the reel 38 in a large area outside and placed in the extra length storage case 22 (a large number of reels 38 can be stored in the extra length storage case 22). Even when the number of core wires is large, a large amount of extra length can be easily and orderly accommodated in a narrow space in the order of wire numbers.

Note that the surplus length processing reel stored in the surplus length storage case has its axis oriented perpendicular to the connecting rod to which the case is attached, so that the surface containing the optical fiber You can process the extra length by winding it in a loop. Therefore, no strain is placed on the optical fiber.

2 Also, at this time, it is important to dispose of the excess length by winding it onto the reel 38.

In other words, the extra length is created by forming a loop around the reel 38, and if this loop is tightened a little, the diameter becomes smaller, and if it is loosened, the diameter becomes larger, making it flexible for processing the extra length. There is sex.

Therefore, as mentioned above, when the extra length is wound around the reel 38 in a convenient place outside the storage case 22 and the reel 38 is stored in the case 22, even if there is some slack, the extra length of the loop is The diameter becomes slightly larger to absorb the slack.

Therefore, even when many reels 38 are stored in the storage case 22, the optical fiber cords and their extra lengths are not disturbed and are arranged in an orderly manner.

3. Since it has a connector storage case that can store all or part of a large number of connectors connected to optical fiber cords, many connectors can also be easily stored in a small space in order of wire number. I can pay it.

4. Attach a connecting rod between the ends of both optical fiber cables, attach extra length storage cases 22 at two locations spaced apart from each other, and install a connector storage case at a position between them. You can process the excess length of the cable and process the connector in between.

Therefore, you can work without difficulty.

[Brief explanation of the drawing]

The drawings relate to embodiments of this invention, and the drawings relate to the first embodiment of the invention.
Figure 2 is an explanatory diagram of the entire structure; Figure 2 is an explanatory diagram of the surplus length storage case and the surplus length processing reel; Figures 3 and 4 are diagrams of how the adapter is stored in the connector storage case; The figure is an explanatory diagram of the connector. 16: Optical fiber cord, 16': Optical fiber extra length, 18: Connector, 20: Adapter, 22:
Extra length storage case, 38: Extra length processing reel, 5
0: Connector storage case.

Claims (1)

[Claims] 1. A connecting rod attached between the ends of two multi-core optical fiber cables to be connected, and a plurality of optical fibers each having flanges on both sides of a disc-shaped winding frame. A surplus length processing reel is attached to two spaced apart locations of the connecting rod, and an optical fiber cord is wound therein;
and a surplus length storage case capable of storing a plurality of the surplus length processing reels, in which the axis of the winding frame is oriented in a direction perpendicular to the connecting rod; and the surplus length storage case. a connector storage case that is attached to the connecting rod at an intermediate position and that can store all or part of a large number of connectors connected to the optical fiber cord; Connection device for multi-core optical fiber cable.