JP2002365468A - Splice unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make direction freely changeable in drawing an optical cable into a splice unit. SOLUTION: In the splice unit 1, a drawing port 3 for an optical fiber is formed by opening the back plate 2b and the side plate 2 in the two left and right corners on the back of the housing 2; and, with a cable clamp 5 and a tension member clamp 7 arranged in a panel 8, the panel 8 is provided in a manner that it is vertically erect or horizontally laid down on the periphery of the drawing port 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a splice unit which is installed in a rack for storing communication equipment and the like and is used for connecting an optical fiber.

[0002]

2. Description of the Related Art A conventional splice unit 21 is shown in FIG.
As shown in FIG. 3, an introduction hole 23 for an optical cable 24 is provided in a back plate 22b of the housing 22, a cable clamp 25 for fixing the optical cable 24 is provided in front of the introduction hole 23, and an optical cable 24 is provided in front of the cable clamp 25. A tension member clamp 27 for fixing a tension member 26 extending from the cable clamp 2 is provided.
5 and a fusion tray 3 for storing the fusion portion of the optical fiber core wire 29 and the extra length on the side of the tension member clamp 27.
2 is provided, and a connector 36 for connecting the optical cord 33 is provided on the front panel 22 d of the housing 22.

[0003]

However, depending on the arrangement of the equipment installed in the rack, there are cases where the optical cable must be drawn in from the side of the rack, or it must be drawn in from the lower side due to the limitation of the depth dimension of the rack. However, there was a problem that the optical cable could not be dealt with because the optical cable could only be drawn in from the back of the housing.

[0004]

SUMMARY OF THE INVENTION In view of the above problems of the conventional splice unit, an object of the present invention is to provide a splice unit capable of freely changing the drawing direction of an optical cable. A cable clamp for fixing the optical cable to the housing, a tension member clamp for fixing the tension member of the optical cable, and a fusion member for storing the fusion portion of the optical fiber core. In a splice unit provided with a receiving tray, a back plate and a side plate at two left and right corners on the rear side of the housing are opened to form an optical fiber inlet, and a cable clamp and a tension member clamp are disposed on a panel. That is, the panel is provided in a state of standing vertically or horizontally on the periphery of the inlet.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION An opening for an optical fiber is formed by opening back and side plates at two corners on the left and right sides on the rear side of a housing, and a cable clamp and a tension member clamp are arranged on the panel, and the panel is retracted. It is provided in a state of standing upright or lying down on the periphery of the mouth.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a splice unit according to the present invention will be described with reference to the accompanying drawings of FIGS.

[0007] The splice unit 1 is installed with a left and right side plate 2a of the housing 2 fixed in a rack (not shown) for storing communication equipment and the like. The housing 2 has a back plate 2b and a side plate 2a at two corners on the rear side on the front side in FIG.

A cable clamp 5 for fixing the optical cable 4 and a tension member 6 extending from the optical cable 4
Is fixed to a rectangular panel 8 slightly larger than the inlet 3. Since the pitch between the screws for fixing the cable clamp 5 and the pitch between the screws for fixing the tension member clamp 7 are the same, it is possible to mount the cable by rotating it by 90 °. A support portion 8b for fixing a rectangular plate-like cover 8a for protecting the optical fibers 4 and 9 is formed at both corners of the panel 8 at opposite corners.

The cable clamp 5 has a shape in which the corrugated surfaces 5c of the receiving member 5a and the pressing member 5b are opposed to each other and abut each other. The optical cable 4 is held between the corrugated surfaces 5c, and the screws 5d at the left and right ends are tightened and fixed. . Further, the tension member clamp 7 is provided with a plurality of cylindrical portions 7b on the substrate portion 7a.
Are formed side by side, and a through hole 7c is formed substantially at the center of the cylindrical portion 7b. The tension member 6 protruding from the optical cable 4 is passed through the through hole 7c, and is screwed into the through hole 7c from the tip of the cylindrical portion 7b. The tension member 6 is fixed by tightening the screw 7d.

When the optical cable 4 is drawn into the splice unit 1 from the lower surface side of the rack, as shown in FIG. 3 (a), the panel 8 is formed on the left or right side plate 2a outside or on the periphery of the left or right inlet 3. It is fixed with a screw in a state where it stands vertically outside the periphery of one of the left and right inlets 3 formed in the plate 2b. Since an insertion hole 8c is formed in the panel 8, the optical fiber core wire 9 can be inserted as needed. When a panel larger than the depth dimension of the splice unit 1 is installed below the splice unit 1 when fixing the panel 8 to the back plate 2b, the panel 8 is fixed using the extension member 10 as shown in FIG. can do.

When the optical cable 4 is drawn into the splice unit 1 from the rear side or the left and right side surfaces of the rack, FIG.
As shown in (b), the panel 8 is arranged side by side on the periphery of one of the left and right inlets 3 so as to coincide with the corner of the panel 8 and the corner of the bottom plate 2c of the housing 2 and fixed with screws. I do.

The housing 2 is provided with a slide case 11 whose inner wall is slidable in the front-rear direction, and a plurality of fusion trays 12 for accommodating a fusion portion of the optical fiber core wire 9 and an extra length therein. Are arranged in multiple layers. An opening 11b is formed in the rear plate 11a of the slide case 11, and a lower edge of the opening 11b is used to accommodate the optical fiber core wire 9 and the optical cord 13 of a length necessary for sliding the slide case 11 back and forth. One end of the flexible tube 14 is connected, and the other end is fixed to an edge of the panel 8 via a connecting member 15.

The flexible tube 14 is formed so as to be able to bend only in one direction, and a plurality of elastic pieces projecting from both sides are juxtaposed on the outer side surface when bent.
13 can be housed in the flexible tube 14 by being pushed in. The panel 8 is mounted on the right side in FIG. 1 and the flexible pipe 14 is provided on the left side. However, when the panel 8 is mounted on the left side, the flexible pipe 14 is temporarily removed and mounted on the right side.

The optical fiber 9 drawn from the optical cable 4 passes through the flexible tube 14 and is drawn into the slide case 11. Even when the slide case 11 is slid in the front-rear direction, the flexible tube 14 deforms while securing the minimum radius of curvature of the optical fiber core wire 9, thereby preventing damage to the optical fiber.

A plurality of connectors 16 are provided on the front plate 11c of the slide case 11, and one end of the optical cord 13 is connected thereto. The optical fiber core wire 9 pulled out to the other end of the optical cord 13 is fused with the optical fiber core wire 9 drawn into the slide case through the flexible tube. Stored and protected.

The front panel 2d of the housing 2 is openable and closable, and an optical cord 13 can be connected to the connector 16 of the slide case 11 from the front of the rack.

In this embodiment, when the panel 8 is mounted on the housing 2 with the panel 8 standing upright, the panel 8 is mounted on the outer surface of the housing 2. However, as shown in FIG. 2c is partially cut out, and the side plate 2a or the back plate 2b of the housing 2 is cut out.
The panel 8 may be formed so that the supporting portion 8 b of the panel 8 is fixed to the inner surface of the panel 2 so that the panel 8 does not protrude outside the housing 2.

[0018]

As described above, the splice unit according to the present invention is installed in a rack for housing communication equipment and the like, and fixes a cable clamp for fixing an optical cable to a housing and a tension member of the optical cable. A splice unit provided with a tension member clamp for fixing the optical fiber core and a fusion tray for accommodating the fusion portion of the optical fiber core. A cable inlet and a tension member clamp are formed on a panel by forming a lead-in port, and the panel is provided vertically or horizontally on the periphery of the lead-in port so that the optical cable can be drawn in freely. If the panel is installed vertically on the outside of the housing, the inside of the housing can be widely used, Workability since it is fixed in the cable and remove the panel from the body there is an effect that good.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a splice unit according to the present invention.

FIG. 2 is a perspective view showing a panel according to the present invention.

3A and 3B show a method of mounting the panel, wherein FIG. 3A is a plan view when the panel is mounted vertically and FIG. 3B is a plan view when the panel is mounted horizontally.

FIG. 4 is a side view showing a state in which a panel is attached to a housing via an extension member.

FIG. 5 is a plan view showing a modified example of the splice unit according to the present invention.

FIG. 6 is a perspective view showing a conventional splice unit.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Splice unit 2 Housing 2a Side plate 2b Back plate 2c Bottom plate 2d Front panel 3 Inlet 4 Optical cable 5 Cable clamp 6 Tension member 7 Tension member clamp 8 Panel 9 Optical fiber core wire 11 Slide case 12 Fusion tray 13 Optical code 14 Flexible Pipe 15 Connection bracket 16 Connector

Claims (1)

[Claims] A cable clamp for fixing an optical cable to a housing, a tension member clamp for fixing a tension member of the optical cable, and an optical fiber core. In a splice unit provided with a fusion tray for accommodating a fusion portion of a wire, a back plate and a side plate at two left and right corners on the back side of the housing are opened to form a drawing port for an optical fiber, and the cable clamp and A splice unit, wherein the tension member clamp is provided on a panel, and the panel is provided on the periphery of the inlet port in a vertically upright state or a sideways position.