JP3530098B2 - Single core separation tool for tape core - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tool for separating a single core wire at a terminal of a tape core wire in which single core wires of a plurality of optical fibers are arranged in parallel and collectively coated.

[0002]

2. Description of the Related Art In an optical cable, a large number of tape core wires having a cross sectional structure shown in FIG. 15 are used as a main member of the optical cable. In FIG. 15, 1 is a glass fiber,
2 is a single core coating, 3 is a single core wire, 4 is a collective coating, and 5 is a tape core wire. The glass fiber 1 is mainly composed of glass such as quartz, and a single core coating 2 made of an ultraviolet curable resin or the like is applied on the glass fiber 1 to form a single core wire 3. Further, a plurality of single-core wires 3 are arranged in parallel and a collective coating 4 made of an ultraviolet curable resin or the like is provided on the outside so as to integrate them to form a tape core wire 5. There are various numbers of single-core wires, such as four, eight, and twelve.

Further, the tape core wire has four single core wires, and has a cross-sectional thickness of about 0.4 mm and a width of 1.1 mm.
It is an extremely thin and thin tape-like object, and it should be handled with care, such as avoiding bending with a radius of curvature of 30 mm or less, so as not to damage the internal single core wire or deteriorate the transmission characteristics of the glass fiber. Great care must be taken.

At the end of the tape core wire, when the inner single core wire is to be taken out from the tape core wire and an operation for attaching an optical connector or the like is to be performed, it is necessary to remove the collective coating from the tape core wire. When removing the batch coating, carefully cut the batch coating with a knife or the like, or attach another strong tape on the tape core wire with an adhesive and pull the tape to remove the batch coating. There is a method to scrape the collective coating one by one using a planer tool.

[0005]

Since the method of using a knife or a planer-shaped tool uses a cutting tool, a single core wire is damaged by the cutting edge unless careful attention is paid to the cutting edge of the cutting tool. Is easy to happen. Especially when the length to remove the collective coating becomes as long as several tens of cm,
The danger is great.

[0006] Further, the method of sticking the tape on the collective coating and peeling it off does not use a knife, but since the attached tape is pulled in the direction away from the tape core wire, the tape core wire is bent at that time, and the single core wire is bent. It may give an extreme bend to the wire and deteriorate the transmission characteristics of the glass fiber. Also,
The adhesive adheres to the fingers, the surface of the tape core wire, etc., and it takes time to clean it. Furthermore, the time required for curing the adhesive is also required, which becomes the waiting time for the work.

The present invention aims at separating the single core wire at the end of the tape core wire which solves the above-mentioned problems of the prior art .
The tool used for this purpose is provided.

[0008]

A tool for separating a single core wire of a tape core wire of the present invention is a tool used for separating the single core wire at an end of the tape core wire, and one end thereof is pivoted to form a V-shape with a spring.
It is biased to open and can be closed by pressing it with your hand.
The thickness of the tape core wire is divided into other inner core wires by dividing at least all or some of the single core wires arranged at the intermediate position in the exposed portion on the inner surfaces of the two levers capable of The cord has a cord separating means that opens in a V-shape in the vertical direction, and a tearing member that can be inserted between the divided single cords in a direction perpendicular to the axial direction of the tape cord, and the tape is directed toward the tearing member. It is provided with a tape core wire guide groove for guiding the core wire toward the terminal side. In addition, when part of the collective coating of the ends of the tape core wire is partially removed to expose all or a part of the single core wires to form exposed portions, the single core wire separation tool for the tape core wire is collectively covered. A shaving means may also be provided together.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a view for explaining a procedure for separating a tape core wire into a single core wire by a single core wire separating tool of the present invention. FIG. 1 (A) is a perspective view, and FIG. (B) is a side view. In FIG. 1, 3 is a single core wire, 4 is a collective coating, 5
Is a tape core wire, and 6 is a tear member. In FIG. 1, an example of a tape core wire having four single core wires is shown.

In the example of FIG. 1, first, at the end of the tape core wire 5, the collective coating 4 on both sides of the tape is scraped off by a collective coating scraping means such as a planer for a length of about 5 mm to 20 mm. Then, although the collective coating 4 partially remains on both side edge portions at that portion, the collective coating on the wide surface is scraped off, and four single-core wires 3 are exposed to form an exposed portion. In the exposed portion, of the four single-core wires 3, the two single-core wires in the intermediate position are slightly raised so that the two in the intermediate position and the two on both side edges are V in the thickness direction of the tape core wire. Divide into letters. Then, the tearing member 6 is inserted into the divided V-shaped gap of the single core wire from a direction perpendicular to the axial direction of the tape core wire 5.

The tear member 6 has an outer diameter of 0.5.
It is possible to use a round bar having a thickness of about 1 mm, a plate having a thickness of about 0.2 mm to 0.5 mm and rounded side edges, a thread such as nylon, or the like. Further, as the material of the tear member, metal, plastic or the like can be used. For materials that do not easily bend, such as metal rods and hard plastic plates, you can fix it by supporting one side, but if it is easy to bend in the longitudinal direction like a thread, fix both ends.

After that, the tape core wire is pushed toward the tearing member 6 in the end direction, or the exposed single core wire which is the end side of the tape core wire is pulled in a direction away from the tearing member 6. Then, the tearing member 6 moves in the longitudinal direction of the tape core wire while biting between the two single core wires at the intermediate position and the two single core wires on both side edges, so that the V-shaped division is performed. Progresses in the longitudinal direction, the collective coating 4 is torn in the longitudinal direction. The separation length of the single core wire is often several tens of cm, but the tape core wire is pushed or pulled with respect to the tearing member by a required length to tear the collective coating. 2A and 2B are views showing a state in which the tearing is performed, FIG. 2A is a side view, and FIG. 2B is a cross-sectional view in the X direction.

Finally, although not shown in FIGS. 1 and 2, the tearing member 6 is removed, and the collective coating adhered to the single core wire at the torn portion is removed and removed by a method described later. For example, it is possible to form a separation part in which the single core wire is separated into four. In addition, since there is a possibility that the single core wire is scratched by the blade of the planer or the like at the part where the collective coating is shaved off with the planer or the like first, the part is cut and removed.

Further, in the above description, an example in which the single core wire at the intermediate position and the single core wires at both side edges are divided has been described, but the single core wire included in the tape core wire is eight. , 12 and so on, there is no need for the same number of single core wires at the intermediate position and at both side edges. When the total number is eight, four intermediate positions and four side edge portions may be used, or six intermediate positions and two side edge portions may be used. In the separating part, the collective coating attached to the single-core wires on both side edges is attached so as to enclose the single-core wires on both side edges. It is desirable to divide all the core wires.

Also, an example has been shown in which the first collective coating of the tape core wire is scraped off by the planer on both sides of the tape, but it is sufficient if only the single core wire to be divided in the middle can be raised in a V shape. Therefore, the scraped surface may be a single surface, or may be a method of scraping so as to expose only the portion of the single core wire at the intermediate position.

FIG. 3 is a perspective view showing an embodiment of a single-core wire separating tool for a tape core wire of the present invention, and FIGS. 4 (A) and 4 (B) are perspective views showing inner surfaces of two levers of the tool. Is. Further, FIG. 5 is a cross-sectional view in the Y direction, and FIGS.
(C) is a front view, a plan view, and a side view in the vicinity of the core wire dividing means.

3, 4, 5, and 6, 3 is a single core wire, 5 is a tape core wire, 6 is a tearing member, 6a is a protruding portion, 6b is a connecting support portion, 11 and 12 are levers, 13, 1
4 is a planer member, 13a and 14a are blades, 13b and 14b
Is a shavings discharge port, 13c and 14c are tape core wire mounting portions,
Reference numeral 15 is a collective covering scraping means, 16 is a drop groove member, 1
6a and 16b are drop grooves, 17 is a holding member, 17
Reference numerals a and 17b are pressing projections, 18 is a cord separating means,
Reference numeral 9 is a tape core wire guide member, 19a is a tape core wire guide groove, 20 is a lid member, 20a is a leaf spring, and 21 is a collective coating separation member.

The two levers 11 and 12 are pivoted at one end, and are biased by a spring (not shown) so as to open in a V-shape.
3, the drop groove member 16 and the tape core wire guide member 19 are fixed, and the inner member of the other lever 12 has a planer member 14, a pressing member 17, a tearing member 6, and a lid member 20.
Are arranged or fixed. By moving the protruding portion 6a arranged on the outer surface of the lever 12 in the longitudinal direction of the lever 12, the tearing member 6 can be moved in the longitudinal direction of the lever 12 via the connecting support portion 6b.

Further, the tape core wire guide member 19 is provided with a tape core wire guide groove 19a, and when the tape core wire 5 is inserted into the groove, the tape core wire is made of a rubber plate or the like so that the tape core wire does not protrude from the groove. The lid member 20 is used to cover. Note that the lid member 20 is fixed to the leaf spring 20a and is urged toward the tape core wire guide member 19 side, so that the lid function is performed even when the levers 11 and 12 are not completely closed. It has become.

The collective coating scraping means 15 is composed of opposing planer members 13 and 14, and as shown in the Y direction sectional view of FIG. 5, when the levers 11 and 12 are closed, they face each other and press each other. Has become. Also, the planer member 1
3, 14 are blades 13a, 14a and shavings discharge port 13b,
14b, and tape core placement portions 13c and 14c. Then, the end portion of the tape core wire is inserted between the tape core wire mounting portions 13c and 14c, the levers 11 and 12 are closed, and the tape core wire is pulled out in the direction opposite to the terminal, thereby collectively covering the end portion. The blades 13a and 14a are bitten into a part of the blade and scraped off. It should be noted that the shavings collectively coated are discharged from the shaving discharge ports 13b and 14b.

FIG. 7 is a side view showing a place where a blade is applied to the tape core wire, and FIGS. 8A, 8B and 8C show a state in which a part of the collective coating of the tape core wire end is shaved off. Side view,
It is a side view and a top view. With this tool, the blades 13a, 1
Since 4a hits both sides of the tape core wire 5 and bites off the collective coating 4, both side edges of the collective coating 4 remain attached to the single core wires 3 on both side edges as shown in FIG. However, even if the remaining portion of the collective coating is left as it is, there is no particular problem in the subsequent work.

Further, in FIG. 7, the positions of the blades 13a and 14a are slightly displaced in the longitudinal direction of the tape core wire 5,
This is because by arranging the tape core wire mounting portion on the side opposite to the bite position of the blade, the bending of the tape core wire is reduced. However, with respect to the tape core wire 5, the blades 13a and 14a
It is also possible to make the position of the symmetrical position.

As shown in FIG. 6, the periphery of the core wire dividing means 18 is a drop groove member 16 having two steps of drop grooves 16a and 16b, and a press member 17 having two steps of pressing projections 17a and 17b. Are arranged inside the two levers so as to face each other, and when the levers 11 and 12 are gripped and closed, they are pressed into the drop grooves 16a and 16b.
7a and 17b enter.

Therefore, the tape core wire 5 is inserted into the tape core wire guide groove 19a of the tape core wire guide member 19 and the exposed portion of the single core wire is disposed between the groove member 16 and the pressing member 17. Then, when the levers 11 and 12 are closed, two of the intermediate positions of the single core wire 3 are dropped into the bottom of the drop groove 16a, and two of both side edge portions of the single core wire are dropped into the bottom of the drop groove 16b. , The single core wire is divided into V-shapes. Also,
When the levers 11 and 12 are closed, the tape core wire guide member 1
The lid member 20 contacts 9 and a part of the tape core wire 5 in the longitudinal direction is confined in the tape core wire guide groove 19a.

In this state, the protruding portion 6a on the surface of the lever 12 is moved to form a V-shaped gap formed by the division, from the direction perpendicular to the axial direction of the tape core wire, to metal, hard plastic, or the like. Then, the rod-shaped or plate-shaped tearing member 6 made in (4) is inserted. Then the levers 11, 1
When the hand holding 2 is released, the levers 11 and 12 are slightly opened, and the dropping groove member 16 and the pressing member 17 are opened. Even in this case, since the lid member 20 is pressed against the tape core wire guide member 19 by the leaf spring 20a, the tape core wire 5 is maintained in the state of being confined in the tape core wire guide groove 19a.

Even when the lever is completely closed without releasing the grip, the drop groove member 16 and the holding member 1 are interlocked with the pushing of the tearing member 6 by the protruding portion 6a.
It is also possible to adopt a mechanism for opening the space between 7 and 7. Further, since it is possible to perform the next work of pushing in the tape core wire while gripping the lever with the hand, it is easier to carry out the work.

The single-core wire 3 is connected to V by the core-wire dividing means 18.
With the tearing member 6 inserted between them, the space between the drop groove member 16 and the holding member 17 of the core wire dividing means 18 is opened to release the pressed state of the single core wire in the meantime. , By pushing the tape core wire 5 toward the tearing member 6 toward the terminal end by hand or by pulling the tape core wire from the exposed single core wire side of the terminal, It is possible to proceed with the division and simultaneously tear the collective coating of the tape core wire in the longitudinal direction.

At this time, the tearing member 6 pushes up the single-core wire at the intermediate position and is pushed by the single-core wire to tear the collective coating in the longitudinal direction. Further, since the tape core wire 5 moves while sliding in the tape core wire guide groove 19a in the longitudinal direction of the tape core wire, the tape core wire is guided by the tape core wire guide groove so as to go straight. FIG. 9 is a side view showing the tearing state. The tear length at this time may be determined according to the required length for separating the single core wire at the end of the tape core wire.

When the tearing is completed, the lever is opened and the tape core wire is taken out from the tool to remove the collective coating adhered to the single core wire separating portion. 10A and 10B are views showing a method of removing the collective coating adhered to the single-core wire side at the intermediate position, in which 21 is a collective coating removing member, and 21a is a flat plate portion. The collective coating removing member 21 is a U-shaped member made of metal or hard plastic and has a flat plate portion 21a.
By pushing the tape core wires toward the collective coating removing member in the arrow direction while guiding the collective coating 4 to the outside of the flat plate portion 21a by passing the single core wire 3 inside the U-shape, the flat plate portion 21a collectively Remove the coating.
In addition, the edge portion of the flat plate portion 21a is rounded so that the single core wire 3 is not damaged.

Further, as shown in FIG. 3, the collective coating removing member 21 fixes the surface of the lever 12 of the tool for separating the single core wire of the tape core wire of the present invention, thereby unifying the tool. Can be planned. Further, the collective coating removing member may have a shape as shown in FIGS. The collective coating removing member 22 shown in FIG. 10 (C) has an L-shaped cross section and has a flat plate portion 22 a fixed in parallel to the surface of the lever 12. In addition, FIG.
The collective coating removing member 23 shown in (D) has a U-shaped cross section, and both ends of the U-shape are fixed to the lever 12, and an intermediate side of the U-shape is a flat plate portion 23a.

Further, the collective coating attached to the single-core wires at the intermediate position is shown in FIG. 10 when the number of the single-core wires at the intermediate position is not large.
As shown in (E), the end of the single core wire and the end of the collective cover are held by hand and pulled in three directions in the arrow direction while applying tension, thereby separating the collective cover and the single core wire, and collectively covering It is also possible to remove 4 from the single core wire 3.

FIG. 11 is a diagram showing a method of removing the collective coating adhered to the single core side of both side edge portions. In this case, since the collective coating is attached so as to wrap the single-core wires on both edges, hold the end of the single-core wire by hand and move the hand in the direction of the arrow while applying tension to move the single-core wire. By detaching the collective coating from the collective coating, it is possible to remove the deposited collective coating without using a tool. In addition, this detachment work is performed for each single core wire on both side edges.

FIG. 12 is a view showing another embodiment of the single core wire separating tool for the tape core wire of the present invention.
(A) and (B) are perspective views showing respective inner surfaces of two levers of a single-core wire separating tool for a tape core wire, and FIG. 12 (C) is a sectional view in the Y direction of the tool. In FIG. 12, 15 '
Is a collective covering scraping means, and 24 is a holding plate.

In the tools shown in FIGS. 3, 4 and 5 described above, the collective coating scraping means 15 has two levers 1.
Canna members 13 and 1 provided on the inner surfaces of 1 and 12, respectively.
12, the tool shown in FIG. 12 comprises a collective covering and scraping means 15 ′ composed of a planer member 13 and a holding plate 24, and the planer member 13 is fixed to the inner surface of one lever 11. A pressing plate 24 is fixed to the inner surface of the other lever 12. In addition, the lever 11 on the side where the planer member 13 is fixed has a drop groove member 16 of the core wire dividing means 18.
, And the holding member 17 of the core wire dividing means 18 is fixed to the lever 12 on the side where the holding plate 24 is fixed.

By fixing the planer member only to the lever on one side of the tool in this way, the number of component parts of the tool can be reduced and the cost of the tool can be reduced. Also,
The position of the blade of the planer member can be easily adjusted, and the single core wire of the tape core wire whose coating is to be removed is less likely to be damaged. Also, the time required for adjustment can be shortened. In addition,
It is possible to easily remove the collective coating on one side of the tape core wire simply by sandwiching the tape core wire between the planer member and the holding plate and pulling out.

Further, the tape core wire from which the collective coating on one side is removed is divided into the following core wires. FIG. 13 is a diagram for explaining the core wire segmentation of the tape core wire from which the collective coating on one side has been removed using the tool of FIG. And FIG.
3A and 3B are an X-direction sectional view and a front view showing a state before division, and FIGS. 13C and 13D are an X-direction sectional view and a front view showing a state after division.

In dividing the core wire in this case, FIG.
As shown in (A) and (B), the pressing member 17 of the core wire dividing means is arranged on the side of the tape core wire 5 where the collective coating 4 remains, and the drop groove member 16 of the core wire dividing means is the tape core. The collective coating of the wire 5 is removed, and the wire 5 is arranged on the surface side where the single-core wire is exposed, and the both are sandwiched. Then, FIG. 13 (C)
As shown in (D), the pressing convex portion 17a of the pressing member 17 breaks through the collective coating 4 and presses the middle two of the four single core wires into the falling groove 16a of the falling groove member 16 to form the core wire. It can be divided.

Although the pierced portion of the collective coating slightly adheres to the middle two single-core wires, it does not hinder the subsequent work. Further, when the pressing member 17 is arranged on the side of the tape core wire 5 from which the collective coating 4 is removed, the pressing convex portion 17a lifts the collective coating together with the two single core wires in the longitudinal direction, so that the single core wires can be successfully divided. It is not preferable because it can not be done.

Further, in the tool shown in FIG. 12, the collective covering and scraping means and the core wire dividing means are arranged adjacent to each other, and the lever 12 and the pressing member 17 on which the pressing plate 24 of the collective covering and scraping means 15 'is arranged. Since the arranged levers 12 are on the same side, the pressing member 17 can be positioned on the surface side where the collective coating remains by simply translating the tape core wire from which one side of the collective coating is removed. Therefore, it is possible to directly perform the core wire segmenting work without performing the work such as turning over the tape core wire.

In the method for separating a single core wire of the present invention, the single core wire is scratched at the portion where the collective cover shaving means initially removes a part of the tape core wire from the terminal portion. Since it may be present, the single core wire in that part is usually cut and discarded.

In the above-described method for separating a single ribbon from the single ribbon, at the end of the ribbon, first, the collective coating is removed, and all or some of the single ribbons arranged at the intermediate position. The process of exposing the exposed part to form the exposed part was necessary, but if the collective coating of the tape core wire is relatively thin, it is possible to form the single core wire without forming the exposed part of the first single core wire. It is possible to separate single-core wires with the collective coating attached. 14A and 14B are views for explaining the method. FIGS. 14A and 14B are sectional views and front views in the X direction before division, and FIGS. 14C and 14D are states after division. An X direction sectional view and a front view are shown.

FIG. 14 shows the process of dividing the core wire in this case.
As shown in (A) and (B), the tape core wire 5 is sandwiched by the holding member 17 and the dropping groove member 16 of the core wire dividing means while the collective coating 4 is applied. Then,
As shown in FIGS. 3 (C) and 3 (D), the pressing convex portion 17a of the pressing member 17 breaks through the collective coating 4 and the middle two of the four single-core wires are dropped together with a part of the collective coating 4 into the drop groove member. It is pushed into the drop groove 16a of 16 to separate the core wire. As a result, the pierced portion of the collective coating slightly adheres to the two intermediate single wires, but this does not hinder the subsequent work.

This method is not limited to the case where the single core wire is separated at the end portion of the tape core wire, but can be applied to the separation of the single core wire at the intermediate portion in the longitudinal direction of the tape core wire. When the method for separating the single core wire of the tape core wire is adopted, in the single core wire separation tool for the tape core wire shown in FIG. 3, FIG. 4 or FIG. Is also good.

[0044]

EFFECT OF THE INVENTION Single-fiber separation of the tape core wire of the present inventiontool
Remove the bulk coating of the end of the tape core wire and
Part or part of the exposed part to form an exposed part,
Whole or part of the single-core wire placed in the middle position in the section
The thickness of the tape core wire by dividing the number of
Open in a V shape in the opposite direction and insert the tearing member in the divided part.
Insert the tape core wire toward the tear member or
Tape by pulling the tape core wire from the end side.
Longitudinal division of the core wire and longitudinal tearing of the collective coating
Of the single core wire, and
Forming a single-fiber separation by removing the cover
It is a single core, except for the part to be cut off later.
Line separation can be formed without using a knife
Therefore, it does not damage the single core wire. Also, the number of separation parts
Even if it is as long as 10 cm, separation work is easily performed.
You can

If the collective coating of the tape core wire is relatively thin, the single core wire and the collective cover are combined together to perform the core wire division without forming an exposed portion of the tape core wire at the end. It is possible to open all or some of the single-core wires arranged at the intermediate position and the other single-core wires in a V-shape in the thickness direction of the tape core wire with the collective coating attached.

Further, the single core wire separation of the tape core wire of the present invention in which the collective coating scraping means, the core wire dividing means, the tearing member, and the tape core wire guide groove are arranged and fixed on the inner surfaces of the two levers whose one ends are pivoted. The tool has all the main parts of the tool that separates the single core wire at the end of the tape core wire in one set of tools, so if you have that tool, you can easily use the single core wire at the end of the tape core wire. Can be separated. Further, if the work for forming the exposed portion at the end of the tape core wire is not performed, it is not necessary to fix the arrangement of the collective covering and scraping means.

Further, the collective covering and scraping means having the opposing planer members is simply pulled by sandwiching the tape core wire,
It is possible to easily remove a part of the collective coating of the terminal portion. Further, the core wire dividing means provided with the drop groove member of the two-step groove and the pressing member of the two-step protrusion is formed by inserting the tape core wire and closing the lever. The core wire and the core wire can be divided into V shapes.
In addition, by inserting a tear member into the section and pushing or pulling the tape core wire along the tape core wire guide groove, even if the separation length of the single core wire is long, it can be easily separated. It is possible to proceed the division of the core wire and the tearing of the collective coating.

Further, the tool in which the canner member is fixed to only one lever can be an inexpensive tool having a small number of parts, the position of the blade can be easily adjusted, and a tool having two opposing canner members can be used. Since it can be used by almost the same operation, it is a preferable form. Further, when the collective coating scraping means is unnecessary, the tool can be made more inexpensive.

[Brief description of drawings]

FIG. 1 shows a single-core wire separating tool for a tape core wire of the present invention.
It is a figure explaining the procedure which isolate | separates a single core wire .

2A and 2B are diagrams showing a state in which tearing and division of collective coating are in progress, FIG. 2A is a side view, and FIG. 2B is a cross-sectional view in the X direction.

FIG. 3 is a perspective view showing an embodiment of a single core wire separating tool for a tape core wire of the present invention.

4 (A) and (B) are perspective views showing respective inner surfaces of two levers in the embodiment of the single core wire separating tool for the tape core wire of the present invention.

5 is a sectional view of the lever shown in FIG. 4 in the Y direction.

6 (A), (B) and (C) are front views in the vicinity of the core wire dividing means applied to the single core wire separating tool of the tape core wire of the present invention;
It is a top view and a side view.

FIG. 7 is a side view showing a place where a blade is applied to the core wire of the tape.

8 (A), (B) and (C) are side views, a side view and a side view showing a state in which a part of the collective coating of the tape core end is scraped off.
It is a top view.

FIG. 9 is a side view showing a tear state of the collective coating of the tape core wire.

10 (A), (B), and (E) are diagrams showing a method of removing the collective coating attached to the single-core wire side at the intermediate position. Also,
(C) (D) is a front view which shows the example of another collective coating removal member.

FIG. 11 is a diagram showing a method of removing the collective coating attached to the single-core wire side of both side edge portions.

12 (A) and (B) are perspective views showing respective inner surfaces of two levers in another embodiment of the single core wire separating tool for a tape core wire of the present invention, and (C) is a Y direction thereof. FIG.

13A and 13B are views for explaining a method of dividing the core wire when the tool of FIG. 12 is used, and FIGS. 13A and 13B are sectional views and a front view in the X direction in a state before the division; D) shows a sectional view and a front view in the X direction in a state after division.

FIG. 14 is a diagram for explaining a method of dividing a core wire without forming an exposed portion of the single core wire, and FIGS. 14A and 14B are a cross-sectional view in the X direction and a front view before division. C) and (D) show a sectional view and a front view in the X direction in a state after division.

FIG. 15 is a cross-sectional view of the tape core wire.

[Explanation of symbols]

1: Glass fiber 2: Single core coating 3: Single core wire 4: Collective coating 5: Tape core 6: Tear member 6a: protruding part 6b: Connection support part 11, 12: Lever 13, 14: Canna member 13a, 14a: blade 13b, 14b: Shavings discharge port 13c, 14c: Tape core mounting portion 15, 15 ': collective covering scraping means 16: Drop groove member 16a, 16b: pit 17: Pressing member 17a, 17b: convex portion for pressing 18: means for dividing the core wire 19: Tape core wire guide member 19a: Tape core wire guide groove 20: Lid member 20a: leaf spring 21, 22, 23: collective coating removing member 21a, 22a, 23a: flat plate portion 24: Presser plate

Front page continuation (72) Inventor Seiji Aragaki 2-3-1, Otemachi, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (56) Reference JP-A-6-347646 (JP, A) JP-A-7 -113915 (JP, A) JP 63-56609 (JP, A) JP 3-213804 (JP, A) Actual development 59-38406 (JP, U) Actual flat 7-19709 (JP, U) ) (58) Fields investigated (Int.Cl. ⁷ , DB name) G02B 6/00 H02G 1/12 302

Claims (8)

(57) [Claims] 1. A tool for use in separating a single core wire at an end of a tape core wire in which a plurality of single core wires of an optical fiber are arranged parallel to each other and are collectively covered, wherein one end is pivoted and a V is used as a spring.
It is urged to open in a letter shape and closed by pressing it with your hand.
The tape is obtained by dividing at least the whole or a part of the single-core wires, which are arranged at an intermediate position at the end of the tape core wire, from the other single-core wires on the inner surfaces of the two levers which can be attached to each other. A tearing member having a cord separating means that opens in a V-shape in the thickness direction of the cord and a tearing member that can be inserted between the divided single cords in a direction perpendicular to the axial direction of the tape cord. A single-core wire separating tool for a tape core wire, which is provided with a tape core wire guide groove for guiding the tape core wire toward the end toward the end. 2. A batch coating scraping means for removing the batch coating of the ends of the tape core wire to form exposed portions at the terminal portions of all or some of the single core wires. The single-core wire separating tool for the tape core wire according to 1 . 3. The core wire dividing means has a two-stage drop groove member for separating and dropping the single core wire near both side edges of the tape core wire and the intermediate core wire. The drop groove member is composed of a pressing member having a two-step convex portion that presses a single core wire into the groove bottom, and the drop groove member is fixed to the inner surface of one lever and the inner surface of the other lever. The single-core wire separating tool for the tape core wire according to claim 1 or 2 . 4. Removing the collective coating of the ends of the tape core wire
Form an exposed part on the terminal part of all or part of the single-core wire
And a cover plate, which is fixed to the inner surface of one of the two levers and is fixed to the inner surface of the other lever. Is characterized in that the holding plate is fixed, and the lever to which the holding member of the drop groove member and the holding member of the core wire dividing means is fixed is on the same side as the lever to which the holding plate is fixed. The single-core wire separating tool for the tape core wire according to claim 3 . 5. The tearing member is a rod-shaped or plate-shaped member supported on one side, and by moving a protruding portion connected to the tearing member and disposed on a lever surface, a tape core wire thickness direction is obtained. The single-filament wire separating tool for a tape core wire according to any one of claims 1 to 4 , wherein the tearing member is inserted / removed between the single-core wires divided into V-shapes. 6. The core wire segmenting means comprises both tape core wires.
Separate the single core wire near the side edge and the middle core wire
Drop groove member having a two-stage drop groove for dropping
And a two-stage convex that presses the single-core wire into the groove bottom of the drop groove.
A pressing member having a portion , interlocking with the insertion of the tearing member between the single core wires divided in the V shape,
The single-core wire separating tool for a tape core wire according to claim 5 , wherein the convex portion of the pressing member of the core wire dividing means is released from the drop groove. 7. The tape core wire guide groove is fixed to an inner surface position of one lever capable of guiding the tape core wire to the core wire dividing means, and the tape core wire is inserted into the tape core wire guide groove. The lid member that presses the tape core wire from coming out from the groove is fixed to the inner surface of the other lever via the leaf spring, and the lid member is fixed by the leaf spring without completely closing the lever. 2. The contract according to claim 1, which has a function of covering the tape core wire guide groove.
The single-core wire separating tool for the tape core wire according to any one of claim 6 . 8. The tape according to claim 1 , wherein a collective coating separating member having a flat plate portion parallel to the lever surface is fixed to the surface of the lever. Single-core wire separation tool for core wires.