JPH06103366B2 - Optical connector - Google Patents

Description

TECHNICAL FIELD The present invention relates to an optical connector for connecting an optical fiber.

[Prior art]

Conventionally, as an optical connector for detachably connecting a multi-core optical fiber core wire, etc., two connector blocks whose end faces are abutted with a pair of positioning pins inserted across the pin holes of both connector blocks. A positioning type is used.

In the conventional optical connector of this type, two connector blocks are made in the same shape and the same size, and the pair of positioning pins are also made in the same size with a uniform length over the length, because of the advantages in manufacturing and accuracy. There is.

〔Task〕

However, since the conventional optical connector has the above-mentioned configuration, when the connection state of the two connector blocks is separated, it is not known in which connector block the positioning pin remains, and even when it remains in one connector block. Since the inserted state may be halfway, or even the connector block may fall out without remaining in either connector block, there was the annoyance that the state of the positioning pin had to be checked one by one when re-coupling.

[Means for solving the problem and its action]

The present invention, in order to solve the problems of the prior art as described above, two connector blocks whose end faces are butted,
In an optical connector having a pair of positioning pins inserted across the pin holes of both connector blocks, the positioning pins are made of a magnetic material, and one of the pin holes facing each other when both connector blocks are butted. It is characterized in that a magnet is fixed inside the hole.

With this arrangement, when disconnecting the connection state of both connector blocks, the positioning pin is difficult to come out of the pin hole where the magnet is present due to the attraction force of the magnet and always remains in the pin hole. .

〔Example〕

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 and 2 each show an embodiment of the present invention.
In the figure, 1A and 1B are connector blocks, and 2a and 2b are positioning pins. The connector blocks 1A and 1B are attached to the end portions of the multi-core optical fiber core wires 3A and 3B to be connected, and the end faces of the optical fibers 4 are exposed at the end faces of the optical fibers 4 arranged at a predetermined pitch. Also connector block
A pair of pin holes 5a and 5b are formed on both sides of 1A and 1B, respectively. The inner diameters of the pin holes 5a and 5b are all the same size, and the positioning pins 2a and 2b have a uniform outer diameter that fits precisely into the pin holes 5a and 5b. In addition, the positioning pin 2a
2b is made of magnetic material such as steel.

In the optical connector shown in Fig. 1, one connector block 1A
Has a structure in which a permanent magnet 6 such as a ferrite magnet is fixed inside the pin holes 5a and 5b, and the other connector block 1B has a structure in which the rear ends of the pin holes 5a and 5b are opened to the outside. Has become. Therefore, when the positioning pins 2a and 2b are inserted into the pin holes 5a and 5b to which the magnet 6 is fixed and then the pulling out is performed, the positioning pins 2a and 2b are attracted by the magnet 6 and are difficult to come out from the pin holes. Become. Therefore, when both connector blocks 1A and 1B are inserted and coupled so that the positioning pins 2a and 2b straddle both of them, and when the coupling is released, the magnet 6 is always fixed to the positioning pins 2a and 2b. One pin hole, that is, one connector block 1A
Will remain on the side.

Next, in the optical connector of Fig. 2, one connector block
1A has a structure in which the magnet 6 is fixed to the inner part of the pin hole 5a on one side, and the inner part of the pin hole 5b on the opposite side is open to the outside, and the connector block 1B on the other side is the opposite. Pin hole
The inner part of 5a is opened to the outside, and the magnet 6 is fixed to the inner part of the pin hole 5b on the opposite side. Even in this case, the same effect as that of FIG. 1 can be obtained.

To fix the magnet in the deep part of the pin hole, press the magnet into the pin hole, insert the magnet into the pin hole and bond it, or integrate the magnet at the same time as molding the connector block. Means can be employed.

〔The invention's effect〕

As described above, according to the present invention, the positioning pin is made of a magnetic material, and the magnets are fixed in the depths of one of the pin holes facing each other when the two connector blocks are butted. When you remove the combined state,
The positioning pin will remain in the pin hole on the side of the magnet due to the attractive force of the magnet. Therefore, there is an advantage that the reconnection of both connector blocks can always be performed in the same state, and the work efficiency is improved.

[Brief description of drawings]

1 and 2 are cross-sectional views showing an embodiment of the optical connector according to the present invention. 1A / 1B: Connector block, 2a / 2b: Positioning pin, 5a /
5b: Pin hole, 6: Magnet.

Claims (1)

[Claims] 1. An optical connector having two connector blocks whose end faces are abutted to each other and a pair of positioning pins inserted across the pin holes of both connector blocks, wherein the positioning pins are made of a magnetic material. An optical connector characterized in that a magnet is fixed in the back of one of the pin holes facing each other when the connector blocks are butted.