KR100367513B1 - Optical flat cable - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Fiber optic tape with multiple fiber optic cores in parallel Fiber optic cable with parallel core fiber or fiber optic cord

2. The technical problem to be solved by the invention

The aim is to provide an optical flat cable that is sufficiently resistant to pulling strength and pushing pressure and that does not damage or degrade the optical fiber.

3. Summary of Solution to Invention

At least one optical fiber tape cord consisting of a plurality of parallel optical fiber core wires, tension fibers covering the outer periphery of the plurality of optical fiber cores so that the outer periphery is rectangular, and a sheath for a cord covering the outer periphery of the tension fiber, and An optical flat cable is composed of a tension member arranged in parallel on both sides of one or more parallel optical fiber tape cords, and a sheath that covers the outer tension portion of the parallel tension member and the optical fiber tape cord so that the outer circumference becomes almost elliptical. have.

4. Important uses of the invention

Fiber optic cable

Description

Flat cable

The present invention relates to an optical fiber tape core in which a plurality of optical fiber cores are parallel or a flat optical fiber cable in which an optical fiber cord is parallel.

The conventional optical fiber tape cord type cable is disposed at the same time as the interposition of the tension member with the interposition, and is sheathed through the tape.

The conventional optical fiber tape cord cable has a drawback that it is difficult to construct and terminate the construction because of its rigid and thick cable, and requires a large installation area.

It is an object of the present invention to provide an optical flat cable that is easy to perform construction and terminal processing of a construction, and has a small installation area and does not damage an optical fiber or deteriorate its performance in view of the above conventional drawbacks. have.

The above and other objects and novel features of the present invention will become more fully apparent upon reading the following description in contrast to the accompanying drawings.

However, the drawings are for illustrative purposes only and do not limit the technical scope of the present invention.

1 is a partial breaking funnel of the form which is the first embodiment of the present invention,

2 is a side view of a form which is a first embodiment of the present invention,

3 is an enlarged cross-sectional view of an optical fiber tape cord of the first embodiment of the present invention;

4 is an enlarged cross-sectional view of a form which is a first embodiment of the present invention;

5 is a partially broken plan view of a form which is a second embodiment of the present invention;

6 is a side view of a form which is a second embodiment of the present invention;

7 is an enlarged cross-sectional view of a form which is a second embodiment of the present invention;

8 is a partially broken plan view of a form which is a third embodiment of the present invention;

9 is a side view of a form that is a third embodiment of the present invention,

10 is an enlarged cross-sectional view of a form which is a third embodiment of the present invention;

11 is a partially broken plan view of a form which is a fourth embodiment of the present invention;

12 is a side view of a form which is a fourth embodiment of the present invention;

13 is an enlarged cross-sectional view of a form which is a fourth embodiment of the present invention;

14 is a partially broken plan view of a form which is a fifth embodiment of the present invention;

15 is a side view of a form which is a fifth embodiment of the present invention,

16 is an enlarged cross-sectional view of a form which is a fifth embodiment of the present invention;

17 is a partially broken plan view of a sixth embodiment of the present invention;

18 is a side view of a form which is a sixth embodiment of the present invention,

19 is an enlarged cross-sectional view of a form which is a sixth embodiment of the present invention.

Explanation of symbols for main parts of the drawings

1,1A, 1B, 1C, 1D, 1E: Optical Flat Cable

2,2A: Fiber Optic Tape Cord

3: tanner member 4,4A: sheath

5: optical fiber 6: inner insect

7: outer layer 8a: ultraviolet curing resin

8: optical fiber core wire 8A: optical fiber tape core wire

9: Tensile strength fiber 10: Sheath for cord

11: steel wire 12: sheath

13: cutting groove 14: fiber fiber cord

15: cushioning material

In order to achieve the above object, the present invention is composed of a plurality of parallel optical fiber core wires, the tensile force fibers covered with the outer peripheral portion of the plurality of optical fiber core wires in a rectangular shape, and the sheath for the cord covering the outer peripheral portion of the tensile strength fibers At least one optical fiber tape cord, a tension member disposed parallel to both sides of the one or more parallel optical fiber tape cords, the parallel tension member and the outer circumference of the optical fiber tape cord are almost elliptical in shape. An optical flat cable is formed by the sheath covering the phase.

EMBODIMENT OF THE INVENTION Hereinafter, this invention is demonstrated in detail with reference to the example shown in the drawing.

In the aspect which is the 1st Example of this invention of FIG. 1 thru | or 4, 1 is the optical flat cable of this invention, This optical flat cable 1 is an optical fiber tape cord 2 and this optical fiber tape cord 2 Sheaths 4 and 3 arranged in parallel at both ends of the cuff), and sheaths 4 which cover the outer periphery of the tension members 3 and 3 and the optical fiber tape cord 2 so that the outer periphery becomes almost elliptical. It consists of).

As shown in FIG. 3, the optical fiber tape cord 2 includes a plurality of parallel, and the inner periphery 6 and the outer layer 7 of the outer periphery of the optical fiber 5, which are generally used in the embodiment of the present invention, using an ultraviolet curable resin. ) And the outer periphery of the four optical fiber cores (8,8,8,8) and the outer periphery of the four optical fiber cores (8,8,8,8) covered with) with ultraviolet curable resin (8a). Sheath for cord which covered 8A of optical fiber tape core wires, the tension fiber 9 which covered the outer periphery of this optical fiber tape core wire 8A so that an outer periphery may become a rectangular rectangular shape, and the sheath for cords which covered the outer periphery of this tension fiber 9 It consists of (10).

As shown in FIG. 4, the tension member 3 is formed such that the height dimension of the optical fiber tape cord 2 is almost the same as the height dimension of the optical fiber tape cord 2 or the height dimension of the optical fiber tape cord 2. Although what is used is used, the thing which covered the outer periphery of the steel wire 11 with the sheath 12 by the form which is this embodiment is used.

The sheath 4 is made of a material generally used in the related art, and a cutting groove 13 for cutting the sheath 4 of the end portion at the time of terminal processing on both sides almost corresponding to the tension members 3 and 3. 13) is formed.

In the optical flat cable 1 having the above-described configuration, since the tension members 3 and 3 are arranged in parallel at both ends of the optical fiber tape cord 2, even if a pulling force or a pushing pressure is applied, the tension member 3, 3) can receive these, and can prevent that they are applied to the optical fiber tape core wire 8A of the optical fiber tape cord 2. FIG.

Next, a form that is another embodiment of the present invention shown in FIGS. 5 to 19 will be described. In addition, as description of the form which is another embodiment of these invention, the description which attaches | subjects the same code | symbol to the same component as the form which is a 1st embodiment of the present invention, and abbreviate | omits the description.

In the aspect which is the 2nd Example of this invention of FIG. 5 thru | or 7, it differs mainly from the form which is the 1st Example of this invention, and in the form which is this example, of two optical fiber tape cords 2 and 2 The tension members 3 and 3 are arranged in parallel at both ends, so that in the case of the optical flat cable 1A configured as described above, the same effects as those of the first embodiment of the present invention can be obtained.

In the aspect of the third embodiment of the present invention as shown in FIGS. 8 to 10, the main difference from the aspect of the first embodiment of the present invention is that four optical fiber cords 14, 14, 14, and 14 are used in parallel. In the case of the optical flat cable 1B using the optical fiber tape cord 2A constructed as described above, the same operational effects as those in the first embodiment of the present invention can be obtained. Can be.

In the aspect which is 4th Example of this invention of FIGS. 11-13, the point mainly different from the behavior which is the 1st Example of this invention is the point which used the sheath 4A without a cutting groove, Also in the case of the optical flat cable 1C, the same effects as those of the first embodiment of the present invention can be obtained.

In the aspect of the fifth embodiment of the present invention, which is from 14 to 16 degrees, the main difference from the aspect of the first embodiment of the present invention is that the optical fiber tape is covered with the cushioning material 15 between the tension members 3 and 3. Since the core wire 8A is provided, the effect similar to the aspect which is the 1st Example of this invention can be acquired also in the optical flat cable 1D comprised in this way.

In the aspect which is 6th Example of this invention which is 17th-19th degree, the point which mainly differs from the aspect which is 5th Example of this invention is the point which used the sheath 4A without a cutting groove, The light comprised in this way Also in the case of the flat cable 1E, the effect similar to the aspect which is the 1st Example of this invention can be acquired.

As is clear from the above description, the following effects can be obtained in the present invention.

(1) at least one or more optical fiber tape cords comprising a plurality of parallel optical fiber core wires, tension fibers covering the outer periphery of the plurality of optical fiber cores to have a rectangular outer periphery, and a sheath for a cord covering the external periphery of the tensile fiber And a tension member arranged to be parallel to both sides of the one or more parallel optical fiber tape cords, and a sheath that covers the parallel tension member and the outer circumference portion of the optical fiber tape cord so that the outer circumference portion is almost elliptical. Therefore, the plurality of optical fiber cores of the optical fiber tape cord can be protected from the pulling force and the pushing pressure by the tension members parallel to both ends.

Therefore, it can be used for wiring to the floor or the like.

(2) According to the above (1), since the optical fiber tape cord having a plurality of optical fiber core wires in parallel is used, it is possible to efficiently prevent the optical fiber core wires from being out of position at the time of manufacture, so that the optical fiber tape cord and the tension member can be accurately It can be paralleled in the sheath.

Therefore, the product which can obtain reliability can be made.

(3) Since said structure (1) is simple, it can manufacture easily.

(4) Claims 2, 3, 4, 5, and 6 also have the same effects as those in (1) to (3) above, and claim 2 is applied to the terminal processing. The sheath of the terminal can be cut out easily, and the internal optical fiber tape cord and tension members at both ends can be taken out.

Claims (9)

At least one optical fiber tape cord consisting of a plurality of parallel optical fiber core wires, tensile fibers covering the outer periphery of the plurality of optical fiber cores so that the outer periphery is rectangular, and a sheath for a cord covering the outer periphery of the tensile fiber; And a tension member disposed parallel to both sides of the parallel or multiple optical fiber tape cords, and a sheath for covering the parallel tension member and the outer circumference of the optical fiber tape cord such that the outer circumference becomes almost elliptical. Optical flat cable. 2. The optical flat cable according to claim 1, wherein the sheath is provided with a cutting groove for cutting the sheath at the time of terminal processing at substantially the center of both sides. The optical flat cable according to claim 1, wherein the tension member is formed to be higher than the height dimension of the optical fiber tape cord. At least one optical fiber tape cord consisting of a plurality of parallel optical fiber cords, tensile fibers covering the outer periphery of the plurality of optical fiber cords so that the outer periphery is rectangular, and a sheath for the cord covering the outer periphery of the tensile fiber, and 1 And a tension member arranged parallel to both sides of the parallel or multiple optical fiber tape cords, and a sheath for covering the parallel tension member and the outer circumference of the optical fiber tape cord such that the outer circumference becomes almost elliptical. Optical flat cable. The optical flat cable according to claim 4, wherein the sheath is provided with a cutting groove for cutting the sheath at the time of terminal processing at substantially the center of both sides. The optical flat cable according to claim 4, wherein the tension member is formed to be higher than the height dimension of the optical fiber tape cord. An optical fiber tape core wire in which a plurality of optical fiber core wires are parallel, a tension member arranged in parallel on both sides of the optical fiber tape core wire, and a sheath covering the parallel tension member and the outer circumference of the optical fiber tape core wire to be almost elliptical. Optical flat cable characterized in that. 8. The optical flat cable according to claim 7, wherein the sheath is provided with a cutting groove for cutting the sheath during the terminal processing at substantially the center of both sides. The optical flat cable according to claim 7, wherein the tension member is formed to be higher than the height dimension of the optical fiber tape cord.