JPH0493804A - Batch connection device for optical fiber - Google Patents

Abstract

PURPOSE:To easily connect all coated optical fibers in a ribbon type conductor mutually by putting a connector to which one end part of each ribbon type conductor is fixed in a tray at a specific position, and fixing tray laminates consisting of vertically laminated trays by a coupling means and a fixing means in one body. CONSTITUTION:The connector where one end part of each ribbon type conductor 1 is fixed is stored in each tray 6 at the specific position and trays 6 are stacked vertically to constitute the tray laminate body 1; and tray laminate bodies 1 are fixed by the coupling means and fixing means in one body. Further, the fixing means is detached and the coupling means is also detached to release the tray laminate bodies from being joined and operation for drawing a desired tray 6 out and replace the connector of another ribbon type conductor to be connected to the tray 6 is performed. Consequently, many ribbon type conductors 11 can easily be connected and an optional ribbon conductor can easily be reconnected to another ribbon conductor when necessary.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an optical fiber batch connection device that can collectively connect a large number of optical fibers housed in a sleeve.

[Conventional technology]

2. Description of the Related Art Various types of optical fiber cables have been developed in which a large number of optical fiber cores can be delivered and installed easily for communication lines and the like. The number of fibers in such cables continues to increase year by year, and cables with up to 1000 fibers have recently been developed.

By the way, such cables use tape wires made up of multiple optical fiber cores, and the tape wires can be freely connected to each other as many times as needed for each cable. In order to shorten the connection work time when connecting tape electric wires, each optical fiber core wire is mechanically connected to each other at the same time.
Furthermore, optical connectors that can be easily connected are fixed to the ends of tape electric wires housed in each cable.

[Problem to be solved]

However, with a cable configured like this,
Each tape wire can be connected relatively easily using a connector, which is convenient in that respect, but these connections usually have to be performed for each tape wire one set at a time, especially for cables containing a large number of tape wires. In this case, the task becomes extremely troublesome.

Moreover, a cable with such a configuration requires a large space to accommodate a large number of connectors, which also poses a problem.

Therefore, in view of the above-mentioned conventional problems, the present invention allows multiple sets of tape electric wires to be easily connected to each other, and also allows any tape electric wire to be easily connected to other tape electric wires when necessary. Moreover, it is an object of the present invention to provide a device for collectively connecting optical fibers that can be stored in a compact manner.

[A means of saving to solve problems]

That is, the present invention is an optical fiber batch connection device for collectively connecting ferrules attached to the ends of each optical fiber core of a multi-core optical fiber cable housed in a sleeve, a stack of trays provided at the end of the sleeve, in which trays containing a plurality of the ferrules arranged in parallel are stacked one on top of the other, and each tray is provided with a scoop-out portion for a ladle from which the trays are pulled out separately; A ferrule that integrally fixes a surplus length mounting plate that is arranged between trays in each stage and stores the surplus length of the optical fiber core, and a pair of tray stacks facing each other, and is housed within the tray stack. The apparatus includes a connecting means for maintaining the connected state, and a fixing means for fixing the pair of tray stacks and/or the end portions of the optical fiber cables fixed and held in this connected state to the sleeve side.

[Effect]

In the optical fiber connection device of the present invention, a connector to which one end of each tape electric wire is fixed is housed in a predetermined position in each tray, and these trays are stacked one above the other to form a tray stack. By fixing these tray stacks together by the connecting means and the fixing means, the optical fiber lines of all the tape electric wires can be easily connected to each other.

Additionally, in addition to removing the fixing means, the connecting means is also removed to release the connection between the tray stacks, and, for example, the desired tray can be pulled out and the connectors of other tape electric wires to be connected to that tray can be replaced. By performing this operation, it is possible to easily change the connections between optical fiber cores.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows an optical fiber interconnection device according to the present invention, which includes a tray stack 1, an extra length mounting plate 2, a connecting means 3, and a fixing means 4.
It is configured with the following.

The tray stack 1 is provided at the connection end of each cable (flash), and has a structure in which multiple trays 6 with ferrules 5 arranged in parallel are stacked vertically as shown in FIG. A cover 7 is set on each tray 6. The tray laminate 1 of this example is
Excess length mounting plates 2, which will be described later, are arranged in five vertical stages sandwiched between the trays 6 in each stage, and each tray can be placed separately in the horizontal direction using the extra length mounting plates 2 as a guide. A pull-out hole 6a is provided on the side of each tray 6 as a pull-out portion for allowing the tray 6 to be pulled out.

These trays 6 are then inserted into the two pull-out holes 6a of a pair of trays 6 that are connected to each other by using a pull-out fitting (not shown), for example, a scissor-shaped jig, and
It can be pulled out one step at a time by pulling it toward you. Furthermore, each tray 6 of this embodiment is fixed with five ferrules 5 buried in the horizontal direction, and each of the ferrules 5 is positioned by a positioning pin 8 as shown in FIG. The ferrule 5 is configured to be in pressure contact with the opposing ferrule 5 by a spring 9. In addition, each tape electric wire 11 of this embodiment with the ferrule 5 fixed to one end has 8 cores, that is, 8 optical fiber cores are arranged inside, so that the tray stack 1 has 200 fibers, that is, 200 cores. It has a structure that houses a large number of optical fiber cores. In addition,
The mutual positional relationship between the opposing ferrules 5 in this embodiment is properly adjusted by a fitting pin 10.

The extra length mounting plate 2 is provided between the trays 6 in each stage as shown in FIG. 4, and serves as a guide when pulling out the trays 6 in each stage from the connected tray stack 1. , the extra length portion 11a of each tape electric wire 11 is accommodated and placed in a ring shape, and in this embodiment, as shown in FIG. things are used.

The connecting means 3 integrally fixes a pair of tray stacks 1 facing each other and maintains connection between ferrules 5 housed within the tray stack 1,
In this embodiment, tray guides 12 are assembled to the tray stack 1 from four directions (up, down, left and right), and as shown in FIG. 5, the side tray guides 12 are fixed and connected in pairs. It is composed of an H-shaped connecting member 13. The tray guides 12 are assembled from the top, bottom, left and right to cover the tray stack 1, and the opposing sides on the sides have a fitting pin 12a and a fitting hole (flash) to fit into the fitting pin 12a. connection) is provided. These tray guides 12 are formed into a cylindrical shape when assembled, and are connected to the intermediate sleeve 1 by screws 15.
4 is screwed on. Furthermore, as shown in FIG. 3, the side tray guides 12 are inserted into the insertion grooves 1a formed between the trays 6 of the tray stack 1 to position each tray 6. Insert piece 12b
is installed protrudingly. The connecting member 13 fixes the side tray guides 12 in close contact with each other, thereby reliably connecting and holding the ferrules 5 in the tray stack 1, as shown in FIG. As shown in FIG.
c and is screwed on. After these connecting members 13 are fitted and screwed, the tray guide 12 is completely covered by a pair of upper and lower connecting sleeves 16 as shown in FIG.
(See Figure 6).

The fixing means 4 fixes the pair of tray stacks 1 connected, fixed and held by the connecting means 3 to the sleeve side, and in this embodiment, as shown in FIG. The laminate 1 is fixed to an end sleeve 18 in the shape of a hollow truncated cone shown in FIG. 6 via an intermediate sleeve 14 screwed onto a tray guide 12 that covers the stack 1 from above and below. The intermediate sleeve 14 is screwed onto the proximal end of the end sleeve 18 from inside in a partially overlapping state, and is connected to the connecting sleeve 16 and the cable bow sleeve 19.
It is designed to be placed inward.

Therefore, according to this embodiment, the fitting pins 12a connect the tray guides 12 surrounding the tray stack 1 to the fitting holes (
All the ferrules 5 can be connected at the same time by simply fitting the ferrules 5 into each other and connecting them.

〔effect〕

As explained above, according to the optical fiber batch connection device according to the present invention, the connector to which one end of each tape electric wire is fixed is housed in a predetermined position in the tray, and the trays are stacked vertically. By fixing these tray stacks together using a connecting means and a fixing means, all the optical fibers in the tape wire can be connected extremely easily. Significant effects can be obtained by connecting several optical fiber cables together.

Further, according to the optical fiber connection device according to the present invention, the connecting state of the tray stacks is released by removing the fixing means and the connecting means, and the desired tray is pulled out and the ferrule is removed and transferred to another tray. You can easily connect individual optical fibers to each other just by changing them, and it is extremely easy to change parts of optical fibers, and it is possible to store a large number of connectors extremely compactly. There are some effects that can be achieved.

[Brief explanation of drawings]

FIG. 1 is a schematic exploded perspective view showing an optical fiber batch connection device according to the present invention, FIG. 2 is a perspective view showing a tray stack according to the present invention, and FIG. 3 is a schematic exploded perspective view showing the tray stack shown in FIG. 4 is an enlarged cross-sectional view of the main parts of the tray stack shown in FIG. 2; FIG. 5 is an enlarged exploded view of the main parts of the optical fiber batch connection device shown in FIG. 1; FIG. 6 is an enlarged plan view of the main parts. FIG. 2 is a side view showing a state in which optical fiber cables are connected using the optical fiber batch connection device according to the present invention. 7...Optical fiber cable,...Ferrule,...Tray,...Tray stack,...Excess length mounting plate,...Connecting means,...Fixing means.

Claims (1)

[Claims] 1. Collectively connect the ferrules (5) attached to the ends of each optical fiber core of the multi-core optical fiber cable (17) housed in the sleeve (14, 16, 18, 19). A device for collectively connecting optical fibers, which is provided at the end of the sleeve and connected to the ferrule (5).
) A tray stack (1) in which a plurality of trays (6) containing a plurality of trays (6) stored in parallel are stacked vertically, and each tray is provided with a pull-out part for pulling out the trays (6) separately; An extra length mounting plate (2) which is disposed between the trays (6) and accommodates the extra length of the optical fiber core, and a pair of tray stacks (1) facing each other are integrally fixed. A connecting means (3) for maintaining a connected state between ferrules (5) housed in a tray stack (1), and a pair of tray stacks (1) and/or optical fibers fixed and held in this connected state. Sleeve (14, 16, 18) the cable (17) end.
- An optical fiber batch connection device characterized by comprising a fixing means (4) for fixing to the side 19).