KR20000033195A - Optical fiber cable and fabricating method thereof - Google Patents

Abstract

PURPOSE: An optical fiber cable and a method for fabricating the same is to manipulate the connection with the subscriber's optical cable by using the ribbon optical fiber in order to shorten the access time. CONSTITUTION: An optical fiber cable comprises: a ribbon optical fiber layer(210) in which at least two optical fibers are horizontally arranged therein and are stacked in a multi-layered structure; a fixing member(220) into which the ribbon optical fiber layer is inserted and for maintaining an arrangement of the ribbon optical fiber layer; an extension wire(230) enclosing the ribbon optical fiber; and an outer jacket(240) for coating an outer surface of the extension wire. To fabricate the optical fiber cable, at least two optical fibers of the ribbon optical fiber layer are coated by an engineering plastic or are bound by a binder yarn. Therefore, the ribbon optical fiber layer is enclosed by the extension wire.

Description

Optical fiber cable and its manufacturing method

The present invention relates to an optical fiber cable, and more particularly, to an optical fiber cable using ribbon optical fibers used indoors.

1 is a cross-sectional view of a conventional optical fiber cable, and is composed of an optical fiber 110, an optical fiber unit 120, a center tensile line 130, aramid yarn 140, a filler 150 and an outer jacket 160. do.

The optical fiber cable of FIG. 1 is a cable using a 900 μm tight coated optical fiber 110 on an optical fiber, and the optical fiber unit is arranged by arranging the tight coated optical fiber 110 concentrically around the central tensile line 130 or the filler 150. After the configuration of 120, the optical fiber unit 120 configured as described above is arranged around the central tension line 130.

When the optical fiber cable is applied as a subscriber optical fiber cable, connection time is required because it is connected to individual core lines.

An object of the present invention is to provide an optical fiber cable using a ribbon optical fiber and a manufacturing method thereof so as to easily connect with the subscriber optical fiber cable.

1 is a cross-sectional view of a conventional optical fiber cable.

2 is a cross-sectional view of an optical fiber cable according to the present invention.

In order to solve the above technical problem, the optical fiber cable according to the present invention is a ribbon optical fiber; Fixing means for fixing the stacked ribbon optical fibers so as not to disturb the arrangement of the ribbon optical fibers by stacking the ribbon optical fibers; A tension line surrounding the ribbon optical fiber layer fixed by the fixing means; And an outer jacket covering the outer layer of the tensile line.

In order to solve the above other technical problem, the optical fiber cable manufacturing method according to the present invention comprises the steps of: (a) stacking one or more layers of ribbon optical fibers arranged horizontally in a straight line shape at least two cores; (b) fixing the stacked ribbon optical fibers so as not to disturb the arrangement of the stacked ribbon optical fibers; (c) wrapping the fixed ribbon optical fiber layer with a tensile line; And (d) covering the outside of the tension line with an outer jacket.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

2 is a cross-sectional view of an embodiment of an optical cable according to the present invention, and includes a ribbon optical fiber 210, a fixing means 220, a tension line 230, and an outer jacket 240.

Ribbon optical fiber 210 is an optical fiber consisting of a ribbon coating by arranging two or more optical fibers in a plane. Ribbon optical fiber 210 is generally used mainly from 2 cores to 16 cores, UV curing resin is used as a coating material. Fixing means 220 is coated with an engineering plastic such as vinyl chloride (PVC), polyurethane (PU), or bound with a bind yarn to form a plurality of ribbon optical fibers 210 as a ribbon optical fiber layer to form a ribbon optical fiber layer Configure. The tensile line 230 uses aramid yarns, glass yarns, FRP, or the like. In this case, the tensile wire used may be a tensile wire having a waterproof function. The outer jacket 240 protects the inner optical fiber by coating the outside of the tensile line 230 with plastic such as vinyl chloride (PVC), polyurethane (PU), polyethylene (PE), and the like.

Based on the above configuration, a manufacturing method of the optical fiber cable according to the present invention will be described.

Consists of two or more horizontally arranged ribbon optical fibers with two or more cores, coated with engineering plastics such as vinyl chloride (PVC), polyurethane (PU), or bundled with bind yarns to form a ribbon optical fiber layer. In this way, two or more ribbon optical fibers are held in a rectangular shape so that the arrangement is not disturbed. After coating with engineering plastics or binding with bind yarns, the ribbon fiber layer is wrapped using amide yarns, glass yarns, FRP, etc., which are used as tensile lines. At this time, the tension line to be used may be applied to the tension line having a waterproof function. The outer layer is covered with plastic such as vinyl chloride (PVC), polyurethane (PU) and polyethylene (PE) to protect the internal optical fiber.

According to the present invention, since the ribbon optical fiber composed of two or more cores is applied, the outer diameter and the weight of the cable are reduced, and the handling is easy, and the ribbon optical fiber is composed of two or more layers and coated with engineering plastics such as PU and PVC. By binding with the bind yarn, the ribbon optical fiber is kept in a square shape so that the arrangement is not disturbed, so it is convenient to use and easily connected to the subscriber optical fiber cable using the ribbon optical fiber.

Claims (6)

Ribbon optical fiber; Fixing means for fixing the stacked ribbon optical fibers so as not to disturb the arrangement of the ribbon optical fibers by stacking the ribbon optical fibers; A tension line surrounding the ribbon optical fiber layer fixed by the fixing means; And an outer jacket covering the outer layer of the tensile line. The method of claim 1, wherein the fixing means Fiber optic cable, characterized in that the fixing by coating the ribbon optical fiber layer with an engineering plastic coating. The method of claim 1, wherein the fixing means Fixing the ribbon optical fiber layer with a bind yarn. (a) stacking one or more layers of ribbon optical fibers horizontally arranged in a shape of two or more cores; (b) fixing the stacked ribbon optical fibers so as not to disturb the arrangement of the stacked ribbon optical fibers; (c) wrapping the fixed ribbon optical fiber layer with a tensile line; And (d) covering the outside of the tension line with an outer jacket. The method of claim 4, wherein step (b) And coating the laminated ribbon optical fiber with an engineering plastic coating so as not to disturb the arrangement of the stacked ribbon optical fibers. The method of claim 4, wherein step (b) In order to not disturb the arrangement of the laminated ribbon optical fiber, the laminated ribbon optical fiber is bound by binding yarns, characterized in that the manufacturing method of the optical fiber cable.