KR20000045498A - Layer-built ribbon optical fiber separation-type optical code - Google Patents

Abstract

PURPOSE: An optical fiber separation-type optical code is provided to facilitate the optical fiber management and enable the high density of optical fibers by separating single-core optical fibers from ribbon optical fibers according to an order. CONSTITUTION: A body is divided into a body case(11) and a cover(61). Space(12) of a certain size is formed inside the body case(11). An inlet is formed to receive plural bundles of ribbon-type optical fibers(71) on one side of the space(12). An outlet is formed on the other side of the space(12) in order for branched single-core optical fibers(72,76) to be drawn out. An inlet adapter(21) is engaged with an inlet flange(13) of the body case(11) and extended outside in a certain length. The inlet adapter(21) has an insertion hole into which plural bundles of ribbon-type optical fibers(72,76).

Description

Stacked Ribbon Fiber Optic Split Cord

The present invention relates to a ribbon optical fiber split type optical cord for distributing a plurality of ribbon optical fibers as a single core, and in particular, a plurality of ribbon optical fiber split type optical cords are stacked to densify and protect the separating part and the optical fiber from external force that may be applied to the separating part. It relates to a laminated ribbon optical fiber separation type optical cord.

In general, a ribbon fiber optic cable is separated into a single fiber and inserted into a system, optical distribution panel, or intermediate switch box before being introduced indoors or into a device as a single fiber optic connector.

Conventional ribbon fiber separation cords serve to separate a single ribbon into several single fibers. However, when the optical fiber is separated by a single ribbon unit, when the ribbon optical cable of many core players is separated by a single core, the number of separate optical cords increases, making it difficult to increase the density.

Therefore, the present invention is to solve the above-mentioned conventional problems, an object of the present invention is to separate the optical fiber stacked in a horizontal direction with a single optical fiber in the horizontal direction to prevent the twist between the stacked upper and lower ribbon optical fibers in the optical cord It is to provide a multi-layer ribbon optical fiber separation type optical cord that effectively accommodates a plurality of ribbon optical fibers, and branched into a single optical fiber to increase the ribbon optical fiber separation unit.

1A is a perspective view of a laminated ribbon optical fiber split optical cord according to the present invention;

FIG. 1B is a cross-sectional plan view taken along the line A-A of FIG. 1A

2 is an exploded perspective view of the laminated ribbon optical fiber separation type optical cord according to the present invention;

3 is a perspective view of a fixing plate according to the present invention;

4 is a perspective view of a pressing plate according to the present invention

<Description of the symbols for the main parts of the drawings>

11: body case 12: body space

13: inlet flange groove 14: optical fiber guide

15: fixing plate fixing iron grooves 16: pressing plate fixing bolt

17: outlet flange groove 18: body split iron groove

19: split body groove 21: inlet adapter

22: inlet adapter flange 23: inlet adapter inlet

24: protective tube flange 25: protective tube

26: protective tube inlet 27: protective tube fixing groove

31: take out adapter 32: take out adapter flange

33: outlet adapter outlet 41: fixed plate

42: fixing plate cantilever 43: fixing plate incision (reinforcement fiber fixing groove)

51: press plate 52: cord tube guide

53: shell fixing groove 54: press plate bolt insertion hole

55: nut 61: cover

62: cover iron groove 63: cover groove

71: ribbon optical fiber 72: separated ribbon optical fiber

73: code tube inner tube 74: code tube shell

75: cord tube reinforcing fiber 76: cord tube

Separate optical cord of the present invention for achieving the above object,

In the optical cord that inserts a plurality of ribbon optical fiber 71 to stack a plurality of single-core optical fiber cords (72, 76) in multiple layers to branch or distribute,

Divided into a body case 11 and a cover 61, a space portion 12 of a predetermined size is formed inside the body case 11, so that the ribbon-type optical fiber 71 can be pulled into a plurality of sides to one side thereof. A body part having an inlet part formed therein and having an outlet opening through which the single fiber optical fibers 72 and 76 are branched to the opposite side of the space part 12 and drawn out;

An extension adapter 21 of a soft material having an insertion hole extending outward a predetermined length in a state coupled to the inlet flange 13 of the body case 11 and having a plurality of insertion holes into which the ribbon optical fibers 72 and 76 are introduced. )Wow;

A protective tube 25 inserted into the inlet adapter 21 and extending a predetermined length to the outside so as to maintain a predetermined curvature or greater when the individual ribbon optical fibers are drawn in;

One end is inserted into the outlet flange 17 communicating with the body case 11, and the other side extends a predetermined length to the outside of the body case 11, and is parallel from a plurality of sets of ribbon optical fibers 71. An extraction adapter 31 in which a plurality of layers of aligned outlets 33 are formed so as to draw out the single-core optical fiber cords 72 branched into single cores to the outside;

An optical cord pressing plate (51) for pressing the optical cord shell (73) to fix the separated single-core optical fiber cord (72);

It characterized in that the configuration including a reinforcing fiber fixing plate 41 for fixing the reinforcing fibers 75 inserted into the cord tube 76 to withstand the tensile force.

Hereinafter, with reference to the accompanying drawings for a preferred embodiment of the present invention will be described in detail.

1A is a perspective view of a laminated ribbon optical fiber split optical cord according to the present invention;

Figure 1b is a cross-sectional plan view taken along the line A-A of Figure 1a,

2 is an exploded perspective view of the laminated ribbon optical fiber separation type optical cord according to the present invention.

For convenience, it will be described with reference to the drawings.

In the present invention, the inlet adapter 21 has a plurality of through holes 23 therein, and can be fixed to the groove of the flange 13 of the body case 11.

The ribbon optical fiber protective tube 25 inserted into the coupling hole 23 of the inlet adapter 21 is formed of a soft material that maintains a constant curvature to prevent damage due to bending of the ribbon optical fiber 71.

In addition, in the present invention, a plurality of convex portions 18 and 62 are formed on the divided surfaces of the body case 11 and the cover 61, and recesses are formed on the divided surfaces of the body case 11 and the cover 61 corresponding thereto. There are (19, 63) is completely fitted during assembly, the inner space 12 of the body case 11 is formed with an uneven 15 that can be fixed by inserting the pressing plate 51 and the fixing plate 41.

In addition, the body case 11 has a predetermined space 12 is formed between the inlet adapter 21 and the fixing plate 41 to secure more than the allowable curvature radius that the optical fiber does not occur as the ribbon optical fiber is separated. An optical fiber guide 14 for guiding the outer optical fiber of the ribbon optical fiber to prevent large bending is formed.

In addition, the separated single-core optical fiber 72 is a lead hole of the lead-out adapter 31 in the state inserted into the single-core cord tube 76 coupled to the outer shell 74, the reinforcing fibers 75 and the inner tube (73). It extends a certain length through 33).

3 and 4 are perspective views of the fixing plate 41 and the pressing plate 51.

Referring to the drawings, the uneven inclined to the inside of the body case 11 that can be fixed so that the outer shell 74 of the single core cord tube 76, the separated single core optical fiber 72 is inserted by the external tension force. After arranging and raising the single-core cord tube 76 on the crimp plate 51 in which a plurality of semicircular grooves 52 guided by the 53 and the take-out adapter 31 are formed, the crimp plate 51 is again mounted. The cover and assembly is fitted to the bolt 16 of the body case and then fixed with a nut 55 to compress the outer shell 74 of the cord core 76 for single core.

In addition, one side of the fixing plate 41 is connected to the fixing plate 41 and the other three surfaces are completely cut to reinforce the inside of the single core cord tube 76 in the same shape as the cantilever beam 42. When the fiber 75 is inserted into the open side of the fixing plate 41, the cantilever 42 is forcibly lifted and then reinforcing fibers 75 in the narrow groove 44 between the fixing plate 41 and the cantilever 42 by the restoring force. ) Is fixed.

In the present invention, the lead-out adapter 31 has a through-type outlet 33 that can pull out the single-core optical fiber cord in which the ribbon optical fiber is divided in parallel with the ribbon optical fiber, to be fixed to the body case 11 as many as the number of ribbon optical fibers. The flange 32 is formed so that it may be.

Meanwhile, an exploded perspective view illustrating a state in which the laminated ribbon optical fiber separating optical cord of the present invention is coupled, referring to FIG. 1B, a ribbon optical fiber protective tube 25 protruding to a predetermined length is inserted into the inlet adapter 21. In this state, the ribbon optical fiber 72 is separated from the body case space through the protective tube and separated out through the cord core 76 for single core. At this time, the ribbon optical fiber 71 is bent into the optical fiber protection tube 25 of the soft material in order to prevent the disconnection occurs and the protective tube 25 is fixed to the groove 27 of the inlet adapter 21. .

In addition, the ribbon optical fiber 71 is fixed by molding between the ribbon optical fiber 71 and the protective tube 25 in order to prevent the ribbon optical fiber 71 from falling out of the protective tube (25). The take-out adapter 31 is fixed to the flange groove 17 of the body case 11 and the body case 11 and the take-out adapter 31 are also fixed by molding with epoxy.

The drawn ribbon optical fiber 72 is separated from the space portion 12 of the body case 11, and at this time, the optical fiber 72 on the outer side of the ribbon is bent over a predetermined radius of curvature to prevent light loss or disconnection. In order to prevent this, the fiber guide 14 is introduced into the single core cord tube 76.

In addition, the reinforcing fibers 75 in the single core cord tube 76 are fixed between the grooves of the cantilever 42 of the fixing plate 41 and the grooves of the fixing plate 41 are fixed to the protrusions 16 of the body case 11. do. The inner tube 73 of the cord tube 76 is inserted to the end of the fixing plate 41 so that the separated optical fiber 72 is inserted, and the sheath 74 of the cord tube 76 passes over the pressing plate 51 and the body case. The pressing plate 51 is sandwiched between the unevenness 17 and the bolt 16 of the 11 to cover the outer shell 75 and press the nut 55 to completely fix the single core cord tube 76 to the body case 11. do.

In addition, the single core cord tube 76 exits through the inner outlet 33 of the outlet adapter 31 and is molded with epoxy for fixing between the outlet 33 and the single core cord tube 76. The take-out adapter 31 has a shape that is guided out of a predetermined length to guide the single core cord tube 76 to the outside and fixed to the flange groove 17 of the body case 11.

FIG. 1A is a combined perspective view of a stacked ribbon separating optical cord. As shown in the drawing, a ribbon optical fiber 71 is drawn in and pulled out horizontally with a single core horizontally in a ribbon optical fiber unit, and a plurality of ribbon optical fibers are separated in the same manner. And it is made by laminating and assembled to match the concave-convex (18, 63, 19, 62) surface of the cover 61 to the body case (11). For perfect assembly, put epoxy in the uneven groove and assemble it by molding.

As described above, according to the laminated ribbon optical fiber separation type optical cord of the present invention, a plurality of ribbon optical fibers are stacked and introduced, and then separated into sequential optical fibers in parallel with the ribbon optical fibers, so that the correspondence between the ribbon optical fibers and the single optical fibers is effective. Subsequently, the fiber management is easy and the density can be increased by lamination.

In addition, the separated single-fiber optical fiber cord is fixed to the fixing plate before drawing out to prevent separation of the cord sheath and the optical fiber by the tensile force, and by pressing and fixing the optical cord sheath with a pressing plate to remove the single-core optical fiber sheath Epoxy molding of the outer sheath and the outgoing adapter before the separated single-core optical cord goes out through the outlet of the outgoing adapter to fix the optical cord sheath so that it does not affect the ribbon fiber separator even during frequent connection and disconnection. In addition, the protective tube is inserted through the protective tube through hole of the soft material and the protective tube protruded out of a certain length is installed in the inlet adapter again. Maintaining the curvature protects the fiber optic cores of the ribbon to protect the fiber Can be.

Claims (7)

In the optical cord that inserts a plurality of ribbon optical fiber 71 to stack a plurality of single-core optical fiber cords (72, 76) in multiple layers to branch or distribute, Divided into a body case 11 and a cover 61, a space portion 12 of a predetermined size is formed inside the body case 11, so that the ribbon-type optical fiber 71 can be pulled into a plurality of sides to one side thereof. A body part having an inlet part formed therein and having an outlet opening through which the single fiber optical fibers 72 and 76 are branched to the opposite side of the space part 12 and drawn out; An extension adapter 21 of a soft material having an insertion hole extending outward a predetermined length in a state coupled to the inlet flange 13 of the body case 11 and having a plurality of insertion holes into which the ribbon optical fibers 72 and 76 are introduced. )Wow; A protective tube 25 inserted into the inlet adapter 21 and extending a predetermined length to the outside so as to maintain a predetermined curvature or greater when the individual ribbon optical fibers are drawn in; One end is inserted into the outlet flange 17 communicating with the body case 11, and the other side extends a predetermined length to the outside of the body case 11, and is parallel from a plurality of sets of ribbon optical fibers 71. An extraction adapter 31 in which a plurality of layers of aligned outlets 33 are formed so as to draw out the single-core optical fiber cords 72 branched into single cores to the outside; An optical cord pressing plate (51) for pressing the optical cord shell (73) to fix the separated single-core optical fiber cord (72); Ribbon optical fiber separation type optical cord comprising a reinforcing fiber fixing plate 41 for fixing the reinforcing fibers 75 inserted into the cord tube 76 to withstand the tensile force. The method of claim 1, A groove 13 in which the flange 22 of the inlet adapter 21 is fixed is formed on the inner side of one side end of the space part of the body case 11 on the side where the ribbon optical fiber 72 is inserted, When the ribbon optical fiber 71 of the layer is introduced, the space of the body case includes a bolt 16 for fixing the multiple pressing plates 51 and an unevenness 15 for simultaneously fitting the multiple fixing plates 41. Ribbon optical fiber separation type optical cord, characterized in that formed on the inner side surface of the side wall, the flange (32) and the groove (17) is formed on the inner surface of the other end of the body case is fixed. The method of claim 1, A plurality of rectangular grooves 27 and inlets 23 are formed on the inlet adapter 21 to fix the plurality of protection tubes 25, and a flange 22 inserted into the body case 11 is one side. Ribbon optical fiber separation type optical cord, characterized in that formed on the end. The method of claim 1, The protective tube 25 is formed with an inlet 26 for inserting ribbon optical fibers at both ends and a rectangular flange 24 for fixing to the inlet adapter 21, respectively, of the inlet adapter 21. Ribbon optical fiber separation type optical cord, characterized in that formed by a flexible material with elasticity so that the ribbon fiber 71 is extended to a certain length to the outside to bend more than a certain curvature. The method of claim 1, A plurality of single core cord tubes 76 are inserted into the outlet 33 of the outlet adapter 31 to protrude outwardly and are inserted into a predetermined length, and the outer shell 74, the reinforcing fiber 75, and the inner tube 73 are coupled to each other. And a single core optical fiber 72 branched into the single core cord tube and discharged, and the single core tube 76 of the plurality of ribbon units can be stacked again in a plurality of layers. Fiber optic split optical cord. The method of claim 1, One side of the fixing plate 41 is connected to the fixing plate 41 at one side of the fixing plate 41, and the other three surfaces thereof are completely cut to form the same shape as the cantilever 42 between the reinforcing fibers 75 between the fixing plates 41. Ribbon fiber optical split type optical cord, characterized in that the reinforcing fiber 75 is fixed to the narrow groove 44 between the fixing plate 41 and the cantilever 42 by the elastic force of the cantilever 42 when inserted. The method of claim 1, The pressing plate 51 is provided with a plurality of semicircular guides 52 for aligning the separated single core tubes 76 and locking jaws 53 for preventing the single core tubes 76 from falling out. Insert the single core tube 76 between the two upper and lower pressing plates 51 and insert the hole 54 of the pressing plate 51 into the bolt 16 raised from the body case 11 and fix it with a nut 55. Ribbon optical fiber separation type optical cord, characterized in that the structure to be able to fix the outer shell (74) of the single-core tube (76) by pressing.