JPH061287B2 - Adhesive fixing method for optical fiber connector and adhesive container - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial field of application The present invention inserts an adhesive for fixing an optical fiber into an optical fiber connector and fixes the optical fiber to the connector. A method and an adhesive container.

(B) Conventional technology Generally, when fixing an optical fiber connector to an optical fiber connector, an adhesive is put into a thin tube hole (for example, 127 μm in diameter) of a ferrule that is a component of the optical fiber connector, and then the optical fiber is further inserted into the tube hole. Have been inserted. To insert an adhesive into this thin tube, conventionally, as shown in FIG. 1, attach the adhesive 4 to the thin tube hole 2 of the ferrule 1, attach the adhesive 4 to the tip of the needle-shaped ultrafine rod 3, and drop each drop. Then I inserted it. After that, the core wire 6 of the optical fiber 5 was inserted into the thin tube hole 2 and fixed.

However, with such a method, it is difficult to confirm whether the adhesive in the thin tube hole of the ferrule is completely filled, and it is difficult to insert the adhesive, and a small amount of adhesive is prepared at the work site of communication equipment. It was difficult to do, and the work of fixing the optical fiber to the optical fiber connector on site was complicated.

(C) Object The object of the present invention is to provide a method for fixing the adhesive of an optical fiber connector which is easy to work, and a convenient adhesive container for carrying out the method, by eliminating the drawbacks of the conventional method of inserting the adhesive. That is.

(D) Structure In order to achieve the above object, an adhesive fixing method for an optical fiber connector according to the present invention has a thin tubular injection part, and an adhesive and a curing agent are separately provided in two chambers separated by a thin film. Prepare a container made of an enclosed flexible material, knead the container well in advance, crush the thin film to mix the adhesive and the curing agent, and open the tip of the injection part. After that, the injection part of the container is inserted into the fiber adhesion part of the optical fiber connector, and the container is pressed to inject the mixture of the adhesive and the curing agent into the fiber adhesion part. The optical fiber is fixed to the connector by inserting the core wire into the fiber bonding portion and solidifying the mixture.

(E) Examples Hereinafter, the present invention will be described in more detail with reference to Examples.

FIG. 2 shows an adhesive container 1 used for carrying out the present invention.
It is a perspective view of 0. The adhesive container 10 is composed of a thin tubular injection portion 11 and a body portion 12, and is entirely formed of a flexible plastic material. Further, inside the body 12, two chambers 14 and 15 are formed apart by a crushable thin film 13, one chamber 14 containing a predetermined amount of adhesive and the other chamber 15 containing a predetermined amount of curing agent. Each is housed individually. A cap 16 is placed on the tip of the injection part 11.

When fixing the optical fiber to the optical fiber connector, first, as shown in FIG.
With the sticking on, the adhesive container 10 is pressed and crushed with a finger, the thin film 13 is crushed, and well kneaded to sufficiently mix the adhesive and the curing agent.

Next, the cap 16 of the adhesive container 10 is removed and the fourth
As shown in FIG. (A), the injection part 11 of the adhesive container 10 is inserted into the tube hole 22 of the ferrule 21 of the optical fiber connector from the rear side of the ferrule 21 and strongly pressed. Subsequently, as shown in FIG. 4 (b), the body 12 of the adhesive container 10 is strongly pinched, and the mixture of the adhesive and the curing agent in the body 12 is pressed into the tube hole 22. The adhesive agent 10 is pulled out from the ferrule 21 to such an extent that the mixed agent is sufficiently pressed in and the mixed agent is pushed out from the tip 22a of the tube hole 22 of the ferrule 21. Then, as shown in FIG. 4 (c), this time, the core wire 24 of the optical fiber 23 is inserted into the pipe 22 from the rear of the ferrule 21, and the optical fiber 23 is fixed to the ferrule 21 by curing the adhesive. .

In the above embodiment, the case where the optical fiber is fixed to the ferrule of the optical fiber connector has been described, but the present invention can be applied to the case where the optical fiber is fixed to another optical fiber connector having a thin tube.

Also, if the adhesive container is sold as an optical fiber connector and set, the technician does not need to prepare special adhesive on site, which is convenient. Also, in this case, if the adhesive container is inserted into the ferrule with the cap still covered (as shown in Fig. 4 (a)) and set, it can be transported in the kevlar fixing groove at the rear end of the ferrule. Can prevent crushing damage.

Further, the adhesive container itself is very effective not only for inserting the adhesive into the ferrule of the optical fiber connector but also for generally inserting the adhesive into the narrow tube hole.

(F) Effect According to the present invention, a container made of a flexible material, which has an injection part in the form of a thin tube and is separately sealed with an adhesive and a curing agent in two chambers separated by a thin film Since the optical fiber core wire is inserted and the mixture is solidified after the adhesive is injected into the narrow tube hole, the predetermined amount can be accurately inserted, so that the adhesion failure due to insufficient insertion does not occur. Further, since the injection section serves as a guide, not only the injection operation of the adhesive can be performed easily, but also the entire fixing operation of the optical fiber to the connector by the adhesive can be carried out easily and quickly. In addition, since the adhesive is separated from the curing agent and stored in the container when unused and not assembled, there is an advantage that the management of the adhesive is very easy.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a conventional method of inserting an adhesive into an optical fiber connector, FIG. 2 is a perspective view of an adhesive container used for carrying out the present invention, and FIGS. FIG. 4 is a view for explaining one embodiment of the present invention, FIG. 3 is a view for explaining a process of crushing the thin film in the adhesive container and mixing the adhesive and the curing agent; The figure is a view for explaining the adhesive insertion process after that. 10: Adhesive container, 11: Injection part, 12: Body part, 13: Thin film, 14: Adhesive chamber, 15: Curing agent chamber, 21: Ferrule, 22: Ferrule thin tube,

Claims (2)

[Claims] 1. A container made of a flexible material having an injection part of a thin tubular shape and separately encapsulating an adhesive and a curing agent in two chambers separated by a thin film is prepared. Rub it well,
Crush the thin film to mix the adhesive and the curing agent,
After opening the tip of the injection part, insert the injection part of the container into the fiber adhesion part of the optical fiber connector, press the container and press the mixture of the adhesive and the curing agent to the fiber adhesion part. An optical fiber connector adhesive fixing method in which after injection, the optical fiber core wire is inserted into the fiber adhesive portion, and the optical fiber is fixed to the connector by solidifying the mixture. 2. An injection part having a thin tubular shape and a body for containing a drug, the body being separated by a crushable thin film.
An adhesive container made of a flexible material, which is composed of a chamber, and an adhesive agent is separately sealed in one of the two chambers and a curing agent is separately sealed in the other chamber.