JPH09197166A - Optical fiber terminal treating tool - Google Patents

Abstract

PROBLEM TO BE SOLVED: To decrease the number of tools, make the tool small-sized and lightweight, and improve the operability by arranging a cutter and a clad removing device on a base provided at the tip part of a handle part which can be gripped by a hand. SOLUTION: A clad removal part 1 has a function for removing the jacket of a terminal of an optical fiber 100 at a time to certain length. A cutter part 2 has a function for specularly cutting the terminal part of the optical fiber 100 having the clad removed by the clad removal part 1 to have a mirror surface. A holder fixture 4 is coupled with a base 7 by a hinge 4a, an optical fiber holder 6 is inserted into a groove while the holder fixture 4 is opened, and the fixture is closed to temporarily fix the holder to the base 7 with a magnet. The handle 5 is so shaped that it can easily be gripped by hand, and a battery 9 can be stored therein. The optical fiber holder 6 is a jig for facilitating the handling of an optical fiber 100 to be spliced and consists of a substrate 6b and a pressure plate 6a, and the part of the terminal of the optical fiber 100 to have the clad removed is projected and gripped.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical fiber, and more particularly to a hand-held tool for terminating an optical fiber when splicing multicore tape optical fiber cores.

[0002]

2. Description of the Related Art Conventionally, to connect optical fibers to each other,
First, remove the coating on the end of the optical fiber for a certain length,
It is necessary to cut the terminal into a mirror surface. In this case, the coating is removed by a certain length after the coating of the end of the optical fiber is appropriately heated and softened, as described in September 1889, Sumitomo Electric 135, pp. 36-42. A coating removing device is used for removing. Regarding the cutting of the optical fiber, as described in the above-mentioned prior art document, as in the above-mentioned prior art document, a cutter by a method of making fine scratches on the surface of the end of the optical fiber at the portion where the coating is removed and breaking it by applying pressure from the opposite side. Is used.

[0003]

However, in the above-mentioned conventional method, it is necessary to prepare a special stationary work table and handle the above-mentioned two tools physically separated on the work table, which is particularly fictitious. In the case, there is a problem that the work is not easy. In addition, the coating removing device requires a power source, and there is a problem that the power cord is not easy to handle especially when it is imaginary.

[0004]

According to the present invention, the cutter and the coating removing device are arranged on a base provided at the tip of a handle portion that can be held by a hand, and a battery is stored in the handle portion. This solves the above problem.

Specifically, the invention according to claim 1 is to coat a plurality of optical fiber terminals arranged in parallel on the same plane.
A coating removal device that heats and softens by a temperature-controlled heater to remove the coating, and a plurality of optical fibers in the coating-removed area are sequentially contacted while moving the circular blade horizontally and at a right angle. A hand-held type, characterized in that an optical fiber cutter that cuts by making a minute scratch and presses the surface of the optical fiber on the opposite side of the scratch with a cutting head is provided on the base. Is an optical fiber terminal processing tool.

According to a second aspect of the present invention, there is provided a hand-held optical fiber terminal treatment tool according to the first aspect, characterized in that electricity is supplied from a battery to a heater of the coating removing device to operate the heater. is there.

The invention according to claim 3 is the hand-held type optical fiber terminal treatment tool according to claim 1, characterized in that the battery is housed in the handle portion.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the description of the drawings, the same elements will be denoted by the same reference symbols, without redundant description.

FIG. 1 shows an embodiment of the optical fiber end treatment tool of the present invention. The approximate size is 220 mm in total length, and the handle part is formed into a circle or a rectangle. In the case of a rectangle, the cross section is 40 mm x 40 mm, and the base part is 75 mm x 75.
mm × 65 mm. The weight is about 1 kg. FIG.
FIG. 2 is a detailed view of a base portion of the optical fiber end treatment tool shown in FIG. 1. FIG. 3 is a diagram showing a configuration of a coating removing unit of the optical fiber end treatment tool shown in FIG. FIG. 4 is a diagram showing the function of the cutter unit of the optical fiber terminal treatment tool shown in FIG. FIG. 5 is a cross-sectional view of a multi-core tape optical fiber core wire to be connected by the optical fiber end treatment tool of the present invention. FIG. 6 is a schematic diagram showing a state in which the multicore tape optical fiber core wire is removed and the state after cutting.

100 is an optical fiber to be connected,
An 8-core tape optical fiber was used. Optical fiber 100
5, as shown in detail in FIG.
The optical fiber element wires 10 each having a coating 10a having a thickness of .mu.m and a thickness of about 60 .mu.m are arranged in parallel at intervals of 250 .mu.m, and a common tape coating 10b is applied thereon.

The coating removing unit 1 has a function of collectively removing the coatings 10a and 10b on the ends of the optical fiber 100 by a predetermined length, and as shown in detail in FIG. A heating plate 12 including a heater 13 that can be heated in a range of 50 ° C. to 150 ° C. in order to easily soften the coatings 10a and 10b by heating to remove the coating, and a DC 9V battery 9 for supplying electricity to the heating plate 12. Softened coatings 10
It is composed of a double-edged blade 11 that separates a and 10b by about 30 mm. The operation of removing the coating is fixed to the coatings 10a and 10b of the optical fiber 100 from above and below by the double-edged blade 11 at a position about 30 mm from the tip of the optical fiber 100 which is gripped by the optical fiber holder 6 and inserted into the coating removal unit 1. At the same time, the heating plate 12 is brought into contact with the coating 10b to be heated and softened. Next, by pulling out the optical fiber holder 6 together with the grasped optical fiber 100,
A coating 10a about 30 mm from the tip of the optical fiber 100,
10b is peeled off and removed.

The cutter portion 2 is covered 10 by the coating removing portion 1.
a has a function of cutting the end portion of the optical fiber 100 from which a and 10b are removed into a mirror surface, and as shown in detail in FIG. 4, a coating 10a of the end portions of a plurality of optical fibers arranged in parallel on the same plane, For the portion 10 from which 10b is removed, a circular blade 20
Is moved horizontally and at a right angle by the circular blade moving rod 22 so as to be brought into contact with each other to make minute scratches, and the surface of the optical fiber on the opposite side of the scratches is pressed by the cutting head 3. It is to cut all at once. Therefore, first, the portions of the optical fiber 100, which are gripped by the optical fiber holder 6 and inserted into the cutter portion 2 from which the coatings 10a and 10b of the ends are removed, are gripped by the clamps 21 at two locations (FIG. 4 (1)). , FIG. 2). Next, the central portion of the clamped optical fiber is finely scratched by the circular blade 20 as described above (FIG. 4 (2), FIG. 2). Finally, pressure is applied from the opposite side of the scratch by the cutting head 3 to apply bending stress, and the mirror surface is cut (FIG. 4 (3), FIG. 2).

A holder fixture 4 for fixing the optical fiber holder 6 is joined to a base 7 by a hinge 4a. With the holder fixture 4 open, the optical fiber holder 6 holding the optical fiber is placed in the groove 7a. Insert it, close it, and temporarily fix it to the base 7 with a magnet. As a result, the double-edged blade 11 and the pressing member 17 attached inside the holder fixing tool 4 shown in FIG. 2 are inserted by the double-edged blade 11 and the heating plate 12, respectively, which are attached at corresponding positions on the upper surface of the fixed base 7. By pressing the end of the formed optical fiber 100 from above and below, it is possible to form a scratch of a certain depth at a predetermined position of the coatings 10a and 10b and heat and soften it. Also,
With the holder fixture 4 open, the optical fiber holder 6 is inserted into the groove 7b together with the optical fiber 100 from which the coatings 10a and 10b have been removed, and by closing the pair, a pair of optical fibers attached to the inside of the holder fixture 4 are attached. The inserted optical fiber 100 is clamped at two points by the clamp 21 and the pair of clamps 21 attached to the corresponding positions on the upper surface of the fixing base, and the circular blade 20 can make a scratch. Further, the cutting head 3 is attached to the holder fixing tool 4 so as to penetrate through the outer side and the inner side, and the optical fiber 100 after being scratched by the circular blade 20 is pushed by pushing the cutting head 3 from the outer side.
The terminal of can be cut into a mirror surface.

The handle 5 for facilitating the support of the base 7 has a shape that is easy to hold by hand (approximately 40 mm × 40 mm ×
150 mm), and the battery 9 can be housed therein. The optical fiber holder 6 is
A jig for facilitating the handling of the optical fiber 100 to be connected. The jig is composed of a substrate 6b and a holding plate 6a.
The part of the terminal No. 00 to be subjected to the treatment such as coating removal is projected and grasped. The outer shape of the optical fiber holder 6 has a shape adapted to the grooves 7a and 7b of the base 7, and the grooves 7a and 7b
It can be smoothly inserted into b.

Reference numeral 9 denotes a battery, which is DC 12V as a whole.
It is stored inside the handle 5.

Next, a method of processing the end of the optical fiber 100 using the optical fiber end processing tool according to the embodiment will be described.

First, a switch (not shown) of the heater 13 of the coating removing section 1 is turned on and kept in an energized state until a series of operations is completed. Next, the optical fiber holder 6 holds the 8-core tape optical fiber core wire 100 shown in FIG. Next, the optical fiber 10
The optical fiber holder 6 holding 0 is inserted into the groove 7a of the base 7 with the holder fixture 4 open, and the coating removing unit 1
With the tip of the optical fiber 100 inserted in the holder, the holder fixture 4 is closed and fixed to the base 7, and after about 10 seconds, the optical fiber holder 6 is pulled out from the groove 7a together with the grasped optical fiber 100. Thus, the coatings 10a and 10b of about 30 mm are peeled and removed from the tip of the optical fiber 100. The state of the coating of the optical fiber 100 during this drawing is shown in FIG.

Next, the optical fiber holder 6 holding the optical fiber 100 from which the coatings 10a and 10b of the terminals are removed is
The holder fixing tool 4 is closed and fixed to the base 7 with the tip of the optical fiber 100 inserted into the groove 7b and the cutter 1. Next, the circular blade moving rod 22 is pressed to collectively make fine scratches on the optical fiber 100 by the circular blade 20, and the optical fiber 100 is pressed from the opposite side by the cutting head 3 to cut into a mirror surface.
The state of the terminal of the optical fiber 100 after cutting is shown in FIG. 6 (2).

[0019]

As described above, according to the present invention,
By installing the optical fiber cutter and the coating removal device on one base, the number of tools can be reduced and the size can be reduced.
Lighter weight and improved workability. Further, by attaching the handle to the above-mentioned base, the handle is supported by one hand and the base is carried out by the other hand, so that the work table is not required and the workability is improved. Also, by using a battery as a power source, a cord is not required, and workability is improved, and work is possible even in a place without a power source. Further, by accommodating the battery in the handle, the weight of the handle portion and the portion of the base on which the cutter portion and the coating removing portion are installed is well balanced, and it is easy to hold, thereby improving workability.

[0020]

[Brief description of drawings]

FIG. 1 is an embodiment of an optical fiber end treatment tool of the present invention.

FIG. 2 is a detailed view of a base of the optical fiber end treatment tool shown in FIG.

FIG. 3 is a diagram showing a configuration of a coating removing unit of the optical fiber end treatment tool shown in FIG.

FIG. 4 is a diagram showing a function of a cutter unit of the optical fiber end treatment tool shown in FIG. 1.

FIG. 5 is a cross-sectional view of a multi-core tape optical fiber core wire to be connected by the optical fiber end treatment tool of the present invention.

FIG. 6 is a schematic diagram showing a state where the multi-core tape optical fiber core wire is removed and the state after cutting.

[Explanation of symbols]

 1: Coating removal part 2: Cutter part 3: Cutting head 4: Holder fixing tool 5: Handle 6: Optical fiber holder 7: Fixing stand 7a, 7b: Groove 9: Battery 10: Optical fiber bare wire 10a: Coating 10b: Te -Pipe coating 11: Double blade 12: Heating plate 13: Heater 20: Circular blade 21: Clamp 22: Circular blade moving rod 100: Multi-core tape Optical fiber core wire

Claims (3)

[Claims] 1. A coating removing device for heating and softening a coating of terminal ends of a plurality of optical fibers arranged in parallel on the same plane by a temperature-controlled heater to remove the coating, and a portion for removing the coating. A circular blade is moved horizontally and at a right angle to a plurality of optical fibers to sequentially contact them to make fine scratches, and the surface of the optical fiber on the opposite side of the scratches is pressed with a cutting head. An optical fiber cutter for cutting the optical fiber by disposing the optical fiber cutter on the same base. 2. The electric power is supplied from a battery to the heater of the coating removing device to operate the heater.
Optical fiber end processing tool described in 3. The optical fiber terminal treatment tool according to claim 1, wherein a handle having a battery housed therein is attached to the base.