JPH05257037A - Simple connector assembly jig for optical fiber - Google Patents

Abstract

(57) [Summary] [Objective] To provide a simple connector assembling jig for an optical fiber, which can easily insert an optical fiber into the simple connector. [Structure] Simple connector 11 with a built-in ferrule 12
An optical fiber simple connector assembling jig 100 for inserting an optical fiber 20 into the sleeve 15 of the optical fiber, which forms and holds a connector fitting portion 102 that detachably holds the simple connector 11 and the sleeve 15. An optical fiber insertion guide groove 103 is formed on the extension of the sleeve 15 of the simple connector 11 in the axial direction so that the center of the optical fiber 20 coincides with the center of the sleeve 15. The optical fiber 20 is guided by the guide groove 103. It can be easily inserted into the sleeve 15 simply by sliding along, and the simple connector can be detached from the jig while being inserted into the sleeve 15.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a simple connector assembling jig for optical fibers.

[0002]

2. Description of the Related Art FIG. 5 shows an example of a simple optical fiber connector. As shown in the figure, the simple connector 11 includes a connector body 13 having a ferrule 12 having an optical fiber insertion hole penetrating in the axial direction, and the optical fiber insertion hole provided on the rear end side of the connector body 13. A sleeve 15 having a concentric insertion hole and a slit 14 in the axial direction, and a fastening member 17 screwed with a threaded portion 16 of the sleeve 15 are provided.

Conventionally, as shown in FIG. 6, in order to mount the optical fiber 20 to the simple connector 11, a fiber abutting surface having a flat surface such that the end face of the ferrule 12 is in contact when the simple connector 11 is mounted. Simple connector 1 in which the fastening member 17 is removed from the adapter 21 for use
1, the optical fiber 20 whose tip is cut into a mirror-like state with a predetermined glass length is inserted from the sleeve 15 of the simple connector 11, and when the tip hits the inside of the abutting adapter 21, the fastening member 17 Tighten,
As a result, the slit portion 16 of the sleeve 15 is tightened, and the optical fiber 20 is fixed by caulking the coating of the optical fiber 20. After that, the simple connector 11 is removed from the adapter 21 to make the main connection. In the assembly of such a simple connector, conventionally, in the work of mounting the optical fiber 20 in the simple connector, the optical fiber is inserted only by hand while aiming at the thin sleeve 15 and visually.

[0004]

However, in the conventional simple connector, since the diameter of the sleeve of the fiber insertion port is small and the slit 14 is provided at the tip, when the optical fiber 20 is inserted, the inlet and the slit 14 are inserted. If the tip of the fiber hits the fiber, the fiber may be broken, chipped, or have dirt attached.
As a result, the connection loss may increase, and in some cases, the work may have to be redone from the coating removal and the end face cutting of the optical fiber. Therefore, it takes some skill to insert a fiber into a thin sleeve by hand only as in the past, and avoid contacting the tip of the fiber with the sleeve as much as possible, especially in a low temperature environment or in a dark place with insufficient lighting. This task at was difficult.

In view of the above circumstances, it is an object of the present invention to provide a simple connector assembling jig for an optical fiber which is easy to mount when mounting the optical fiber on the simple connector.

[0006]

The structure of a simple connector assembling jig for optical fiber according to the present invention which achieves the above object, is a simple connector for optical fiber in which an optical fiber is inserted into a sleeve of a simple connector having a built-in ferrule. An assembly jig, which forms a fitting holding portion for detachably holding the simple connector and the sleeve, and extends the axial direction of the sleeve of the held simple connector to extend the center of the optical fiber and the sleeve. An optical fiber insertion guide groove whose center coincides with that of the optical fiber insertion groove is formed, and the simple connector can be detached from the jig in a state where the optical fiber is inserted into the sleeve by the guide groove.

[0007]

In the above structure, after the simple connector and the sleeve are mounted in the fitting holding portion, the optical fiber is pushed into the optical fiber guide groove from above and is slid toward the simple connector side so that the optical fiber is securely centered in the sleeve. Can be inserted together. At this time, the glass part of the optical fiber does not touch the surroundings at all until it is inserted into the sleeve, so the fiber can be easily inserted into the sleeve of the simple connector without causing damage to the optical fiber or adhesion of dust. It becomes possible. By providing a slit in a part of the simple connector holding portion formed in the jig, the simple connector can be pulled out from the jig while the fiber is inserted in the sleeve, and the fiber can be taken out through the slit portion at the same time. After that, the simple connector with the fiber still inserted is fixed after the fiber is abutted and positioned.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 (A) is a perspective view of a simple optical fiber connector assembling jig according to this embodiment, and FIG. 1 (B) is a schematic view showing a state in which the connector is held.

As shown in FIG. 5, the optical fiber simple connector assembling jig 100 according to this embodiment is similar to that shown in FIG.
Is for inserting the optical fiber 20 into the sleeve 15 of the simple connector 11 shown in FIG.
A sleeve holding portion 101 for holding the outer circumference of the sleeve 15 provided at the rear end portion of the first connector body 13 and a connector fitting portion 102 for detachably fitting and holding the outer circumference of the connector body 13 are formed. On the extension of the sleeve holding portion 101 in the axial direction, the optical fiber inserting guide groove 10 in which the center of the optical fiber 20 and the center of the sleeve 15 coincide with each other.
3 is formed.

A slit 104 is formed in the sleeve holding portion 101 and the connector fitting portion 102, which is an extension of the guide groove 103.

Optical fiber guide groove 10 formed in a jig
A holding groove 105 for holding the fastening member 17 fastened to the sleeve 15 is formed on the optical fiber insertion side of 3.
The fastening member 17 is placed when the optical fiber 20 is inserted.

That is, in the simple connector assembly jig 100 according to this embodiment, the sleeve holding portion 101 for mounting and fixing the simple connector 11 and the connector fitting portion 102 and the guide groove 103 for guiding the optical fiber 20 are integrated. It has a structure. Therefore, when the simple connector 11 is mounted on the jig, the center of the sleeve 15 of the simple connector 11 is aligned with the center of the optical fiber 20 guided by the guide groove 103. Further, a part of the portion where the simple connector 11 is mounted and fixed is provided with the guide groove 103.
Since the slits 104 communicating with each other are formed, the simple connector 11 can be detached with the optical fiber 20 inserted in the sleeve 15.

The guide groove 103 of the optical fiber 20 is also provided.
Is appropriately sized and sufficiently smooth to facilitate sliding the fiber with a finger. The jig shown in FIG. 1 is one specific example of the present invention, but the shape of the appearance is limited as long as it has a fiber guide designed to match the position of the fixed portion of the sleeve of the simple connector. It is not something that will be done.

The slit 104 is formed in the jig shown in FIG. 1, the optical fiber 20 is inserted into the simple connector 11, and then the simple connector 11 is slid slightly in the drawing direction (L direction). I'm trying to get out.

Further, instead of providing the slit 104, the upper portion of the connector fitting portion 102 can be detached, and the simple connector can be opened by rotating the upper portion in the axial direction and the direct direction. Good.

2 to 4 exemplify a mechanism example of a guide groove for inserting an optical fiber formed in the jig.

The jig shown in FIG. 2 has only the simplest optical fiber guide groove 103. According to this, the optical fiber 20 placed on the guide groove 103 is slid toward the sleeve 15 while pressing the optical fiber 20 from above with a finger. It is possible.

The jig shown in FIG. 3 is the jig shown in FIG. 2 provided with a fiber pressing plate 106 for correcting the warp of the optical fiber 20, and the insertion method is simply sliding the fiber sideways. Is.

The jig shown in FIGS. 4 (A) and 4 (B) has a mechanism in which the slide portion 107 itself having an optical fiber guide groove formed therein slides in the horizontal direction (R direction in the figure) from the main body. The optical fiber 20 is inserted into the sleeve 15 by fixing the fiber in the groove at a predetermined position with the pressing plate 106 and then horizontally sliding the fiber along with the guide groove in the direction of the sleeve.

In the structure shown in FIGS. 3 and 4, the fiber pressing plate 106 can be easily opened when the simple connector is taken out after inserting the optical fiber into the sleeve.

In the above structure, since the guide groove 103, the sleeve holding portion 101 and the connector fitting portion 102 are integrated, the optical fiber 20 is pressed against the guide groove 103 from above and is slid toward the simple connector mounting side. It can be inserted by aligning the center with (see FIGS. 1 and 2). Further, since the glass portion of the optical fiber 103 does not touch the surroundings at all until it is inserted into the sleeve 15, it is possible to easily insert the fiber into the sleeve of the simple connector without damaging the optical fiber or adhering dust. I can.

Further, since the slit 104 is provided in a part of the sleeve holding portion 101 for holding the simple connector and the connector fitting portion 102, the simple connector 11 is moved forward with the optical fiber 20 inserted in the sleeve 15. At the same time, the fiber can be taken out through the slit 104.

After that, the simple connector in which the fiber removed from the jig is inserted and the optical fiber is abutted and positioned as shown in FIG.

[0024]

As described above, the simple optical fiber connector assembling jig allows anyone to easily and surely perform the fiber mounting work on the simple connector, which has required the conventional skill, and has a low loss. A stable connection can be made. In particular, the simple connector that does not require fixing of the optical fiber with an adhesive or polishing of the ferrule end face can be easily assembled in a short time without using a special tool or power source.
It is used for temporary connection of optical fiber for emergency recovery, trouble transfer, or experiment when the optical cable is broken. The optical fiber simple connector assembling jig according to the present invention is of great utility because it has a simple structure and further secures the advantages of such a simple connector.

[Brief description of drawings]

FIG. 1 is a schematic diagram of an optical fiber simple connector assembling jig according to an embodiment.

FIG. 2 is a schematic view of a guide groove mechanism for inserting an optical fiber according to the present embodiment.

FIG. 3 is a schematic view of a guide groove mechanism for inserting an optical fiber according to the present embodiment.

FIG. 4 is a schematic view of a guide groove mechanism for inserting an optical fiber according to the present embodiment.

FIG. 5 is a schematic view of a simple connector.

FIG. 6 is a schematic view showing insertion of an optical fiber into a conventional simple connector.

[Explanation of symbols]

 11 simple connector 12 ferrule 13 connector body 14 slit 15 sleeve 16 screw part 17 fastening member 100 optical fiber simple connector assembling jig 101 sleeve holding part 102 connector fitting part 103 optical fiber insertion guide groove 104 slit 105 holding groove 106 presser foot Board

Claims (1)

[Claims] 1. A simple connector assembling jig for an optical fiber, which inserts an optical fiber into a sleeve of a simple connector having a ferrule built therein, wherein a fitting holding portion for detachably holding the simple connector and the sleeve is formed. Along with the axial extension of the sleeve of the retained simple connector,
A guide groove for inserting an optical fiber is formed so that the center of the optical fiber and the center of the sleeve are coincident with each other, and the simple connector can be detached from the jig while the optical fiber is inserted into the sleeve by the guide groove. A simple jig for assembling optical fiber connectors.