JPH07159644A - Fusion splicing machine - Google Patents

Abstract

PURPOSE:To provide a fusion splicing machine capable of surely fixing plural pieces of optical fibers constituting a multifiber optical fiber cable into V- grooves. CONSTITUTION:This fusion splicing machine has a V-groove block 13 provided with the plural V-grooves 14 for positioning the optical fibers 12 on a plane and a pressing means for fixing the optical fibers by pressing the optical fibers 12 positioned at this V-groove block 13 and fusion splices the optical fibers 12 by disposing the end faces of plural pieces of the optical fibers 12 opposite to each other. The pressing means has a brush-like object 15 having flexible wire-shaped bodies 16 and is constructed to press the wire-shaped bodies 16 to the V-grooves 14.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-fiber fusion splicer for optical fibers, and more particularly to a pressing means for pressing an optical fiber positioned in a V groove to fix the optical fiber.

[0002]

2. Description of the Related Art With the increase in the number of optical fiber cables, it is necessary to connect a plurality of optical fibers together. As this method, there is a multi-core fusion splicing method. In this method, for example, as shown in FIG.
The optical fiber 1 is positioned in the V groove 3 which is processed with high precision on the upper side, and the optical fiber 1 is pressed and fixed from above by the clamp 4. This pressing force is required to be several g per one optical fiber, and the pressing force of the clamp 4 is about 30 to 60 g in the case of connecting the optical fibers in a bundle of multiple fibers. Such an optical fiber 1
Aligning the axes so that the end faces face each other, and heating and fusing by electric discharge for connection. 5 is an electrode rod.

[0003]

However, the above-mentioned multi-core fusion splicer has the following problems. That is, as shown in FIG. 4, a plurality of V grooves 3 formed on the flat base 2 are formed.
There may be a slight difference in height. Then,
When the optical fiber 1 is pressed against the flat surface of the clamp 4,
There is a possibility that all the optical fibers 1 cannot be fixed with sufficient pressing force.

[0004]

DISCLOSURE OF THE INVENTION The present invention provides a fusion splicer which solves the above-mentioned problems, and a V-groove base provided with a plurality of V-grooves for positioning an optical fiber on a plane, and the V-groove base. In a fusion splicer that has a pressing unit that presses the optical fiber positioned in the groove base to fix the optical fiber, and makes the end faces of a plurality of optical fibers face each other, by fusion-splicing the optical fibers. The means includes a brush-like object having a flexible linear body, and has a structure for pressing the linear body into the V groove.

[0005]

As described above, when the optical fiber positioned in the V groove is pressed by the flexible linear member forming the brush,
Since the linear body flexes in the longitudinal direction with flexibility, V
Despite the vertical position variation of the groove on the V groove base,
All optical fibers can be fixed with sufficient pressing force.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the embodiments shown in the drawings. First Embodiment FIG. 1 is a partial perspective view of an embodiment of the fusion splicer according to the present invention. In the figure, 11 is a multi-fiber optical fiber cable, 1
2 is an optical fiber forming the multi-core optical fiber cable, 13 is a V groove stand, 14 is a V groove formed in the V groove stand 13, 15 is a brush-like object, 16 is the brush-like object 15. It is a flexible linear body. The linear body 16 is arranged so as to be orthogonal to the optical fiber 12. In addition, the linear body 1
In order to prevent discharge, 6 is made of an elastic plastic wire having a circular or elliptical cross section. Second Embodiment FIG. 2 is a partial perspective view of another embodiment. In this embodiment, the linear bodies 26 forming the brush 25 are bundled in different lengths. Thus, when the linear body 26 is pressed against the V groove base 13, the position of the pressing point of the linear body 26 varies depending on the length, so that the plurality of optical fibers 12 can be pressed more reliably. As a material for the linear body, a non-electrostatic material such as carbon-added or carbon-coated plastic (nylon, etc.) is used, or a ground wire is attached to the linear body to release static electricity. The force can prevent the linear bodies from sticking to each other.

[0007]

As described above, according to the present invention, a V having a plurality of V grooves for positioning an optical fiber on a plane is provided.
A groove base and a pressing means for pressing the optical fiber positioned in the V groove base to fix the optical fiber, and a plurality of optical fiber end faces are opposed to each other to fuse and splice the optical fibers. In the splicing / connecting machine, the pressing means includes a brush-like object having a flexible linear body and has a structure for pressing the linear body into the V-groove, so that all of the plurality of optical fibers positioned in the V-groove are There is an excellent effect that it can be securely fixed.

[Brief description of drawings]

FIG. 1 is a partial perspective view of an embodiment of a fusion splicer according to the present invention.

FIG. 2 is a partial perspective view of another embodiment according to the present invention.

FIG. 3 is a perspective view of a conventional fusion splicer.

FIG. 4 is an explanatory diagram of problems of the conventional fusion splicer.

[Explanation of symbols]

 11 multi-core optical fiber cable 12 optical fiber 13 V groove stand 14 V groove 15, 25 brush-like material 16, 26 linear body

Claims (3)

[Claims] 1. A V-groove base provided with a plurality of V-grooves for positioning the optical fiber on a plane, and a pressing means for pressing the optical fiber positioned in the V-groove base to fix the optical fiber. In a fusion splicer in which the end faces of a plurality of optical fibers are opposed to each other and the optical fibers are fusion-spliced, the pressing means includes a brush-like object having a flexible linear object, and the linear object is the V-shaped member. A fusion splicer having a structure for pressing into a groove. 2. The fusion splicer according to claim 1, wherein the brush-like material is composed of linear bodies having different lengths. 3. The fusion splicer according to claim 1, wherein the linear body forming the brush-like material is made of a non-charging material.