JPH0138562Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a tape-shaped multi-core optical fiber sheath remover for removing the sheath from a tape-shaped multi-core optical fiber.

As shown in FIG. 1, the tape-shaped multi-core optical fiber core wire 1 consists of a plurality of optical fibers (the outer periphery of the optical fiber is covered with a primary coating, or a buffer layer is further provided on the primary coating). 2 are lined up horizontally, and a common covering 3 is placed around them in a tape-like manner.

When connecting such tape-shaped multi-core optical fibers 1, it is necessary to remove the coating 3 by some method to expose each optical fiber strand 2 inside.

In the past, various types of sheath removers for single-core optical fibers have been proposed, but no sheath remover for tape-shaped multi-core optical fibers has yet been proposed.
Its appearance is desired.

SUMMARY OF THE INVENTION An object of the present invention is to provide a tape-shaped multi-core optical fiber sheathing remover that can easily remove the coating from a tape-shaped multi-core optical fiber.

The tape-shaped multi-core optical fiber sheath remover according to the present invention includes first and second arms whose proximal ends are pivotally supported and whose distal ends are openable and closable;
first and second workbenches provided opposite to each other at the tip of the second arm; The angle formed by the first and second core wire guide grooves in which the cutting edge faces the first core wire guide groove in a direction transverse to the width direction thereof and the core wire outlet side of the grooves is an acute angle. a first cutting tool tilted as shown in FIG. A second cutting tool is supported on the second workbench and is inclined so that the angle formed by the two cutting tools is an acute angle. The present invention is characterized in that it includes first and second coating waste discharge ports which are provided through the first and second workbenches for discharge to the outside.

Embodiments of the present invention will be described in detail below with reference to the drawings. 2 to 7 show a first embodiment of the present invention. As shown in the figure, the tape-shaped multi-core optical fiber sheath remover of this embodiment has a first
a second arm 4,5;
The proximal end side of is pivotally supported by a shaft 6 so as to be freely openable and closable. A spring 7 is interposed between the arms 1 and 2 to bias the arms 4 and 5 in the opening direction. At the ends of the first and second arms 4 and 5, first and second work platforms 8 and 9, which are block-shaped and face each other, are fixedly mounted with screws 10 and 11, respectively. Opposing surfaces 8A and 9A of these first and second workbenches 8 and 9 are flat so that they can come into contact with each other.
The surfaces 8A and 9A of the first and second workbenches 8 and 9 have first and second core wire guide grooves 1 extending across them.
2 and 13 are provided correspondingly. The widths of these fiber guide grooves 12 and 13 are set approximately equal to the tape width of the tape-shaped multi-core optical fiber core wire 1. The depth of each fiber guide groove 12, 13 is set approximately equal to 1/2 of the thickness of the tape-shaped multi-core optical fiber core wire 1. On the surface 8A of the first workbench 8, an insertion guide material 14 for guiding the tape-shaped multi-core optical fiber 1 to easily enter the first fiber guide groove 12 is provided. The grooves 12 are arranged in pairs on both sides of the grooves 12 in the width direction.
There are two oppositely arranged at different positions in the direction of . The surface 9A of the second workbench 9 is provided with recesses 15 into which these insertion guide members 14 fit. The first and second workbenches 8 and 9 are provided with first and second coating waste discharge ports 16 and 17 extending through the surfaces 8A and 9A thereof to the back side. These first and second coating waste outlets 16 and 17
First and second cutting tools 18 and 19 are disposed inside these discharge ports 16 and 17 by using the sloped surfaces of the drain holes 16 and 17, and are fixed to the first and second workbenches 8 and 9 with screws 20 and 21. There is. These first and second bytes 18, 19
has the cutting edges 18A, 19A facing into the first and second fiber guide grooves 12, 13 in a direction transverse to the width direction thereof, and the fiber outlet side 12 of these grooves 12, 13.
It is tilted so that the angle θ formed with A and 13A is an acute angle and is fixed to the first and second workbenches 8 and 9. The first and second bites 18 and 19 have long holes 2.
2, 23 are bored, and these long holes 22, 2
The screws 20, 21 pass through 3, and the cutting edges 18A, 19
The protrusion dimension of A into the grooves 12 and 13 can be adjusted. When the surfaces 8A and 9A of both the work tables 8 and 9 are brought into pressure contact with the surface 8A of the first work table 8 to perform coating removal work, the surfaces 8A and 9A of the first work table 8 are placed in such a way that there is no deviation in the contact direction between the two surfaces 8A and 9A. protrusion 24
is installed protrudingly. Correspondingly, a recess 25 is provided in the surface 9A of the second workbench 9, into which a protrusion 24 can fit.

Such a sheath remover uses a guide material 14 to insert the tip side of the tape-shaped multi-core optical fiber 1 from which the sheath 3 is to be removed into the first fiber guide groove 12 of the first workbench 8. Press the arms 4 and 5 in the closing direction to close the surfaces 8 of both work tables 8 and 9.
A and 9A are brought into pressure contact with each other, and with the tape-shaped multi-core optical fiber core 1 accommodated between the fiber guide grooves 12 and 13 on both sides as shown in FIG. 7, the coating is removed as shown by the arrow. When the device is moved to the end side of the core wire 1, the inclined first and second bites 18, 19
The coating 3 on the upper and lower sides of the tape-shaped multi-core optical fiber 1 is stripped off, and the coating waste 3' is discharged from the respective workbench 8, 17 through the coating waste outlet 16, 17.
9 is discharged to the outside. Note that the inner layer of the coating 3 usually has a small Young's modulus and can be easily peeled off, so there is no problem even if a small amount remains.

As explained above, according to the tape-shaped multi-core optical fiber sheathing remover according to the present invention, the coating on both wide sides of the tape-shaped multi-core optical fiber can be stripped off. It is possible to efficiently remove the coating from a multi-core optical fiber. In addition, this invention uses a peel-off type, and the peeled-off coating waste is discharged from the coating waste outlet to the outside of the workbench, so compared to a type where the coating is squeezed out, it is easier to draw the core wire. It has the advantage of low pulling resistance and good workability.

[Brief explanation of the drawing]

Fig. 1 is a cross-sectional view showing an example of a tape-shaped multi-core optical fiber, Fig. 2 is a front view showing an example of a coating remover according to the present invention, and Figs. Front view of both workbenches used, Figure 4 is the 3rd
A cross-sectional view taken along line A-A' in the figure, Figure 6 is B-- in Figure 5.
A cross-sectional view taken along the line B' and FIG. 7 are cross-sectional views showing the coating removal state in the coating remover of this embodiment. DESCRIPTION OF SYMBOLS 1... Tape-shaped multi-core optical fiber core wire, 2... Optical fiber wire, 3... Covering, 4, 5... First and second arms, 6... Shaft, 7... Spring, 8, 9...
1st, 2nd workbench, 8A, 9A...Surface, 1
2, 13...first and second core wire guide grooves, 12
A, 13A... Core wire outlet, 16, 17... 1st,
Second coating waste outlet, 18, 19...first, second
Bit, 18A, 19A...cutting edge.

Claims (1)

[Scope of utility model registration request] first and second arms whose proximal ends are pivoted and whose distal ends are openable and closable; and first and second arms which are provided oppositely to the distal ends of the first and second arms. a workbench, first and second wire guide grooves provided in correspondence across the surfaces of the first and second workbench, and within the first wire guide groove; a first cutting tool supported on the first workbench and inclined so that the cutting edge faces in a direction transverse to the width direction of the cutting tool and the angle formed with the core wire outlet side of the groove is an acute angle; The blade is supported on the second workbench so that the cutting edge faces into the second fiber guide groove in a direction transverse to the width direction thereof, and the angle formed between the groove and the fiber outlet side is an acute angle. a second cutting tool, and a second tool penetrating through the first and second workbenches for discharging coating waste removed by the first and second cutting tools to the outside of each workbench. 1. A tape-shaped multi-core optical fiber sheathing remover, characterized in that it is equipped with a second sheathing waste outlet.