JP2581527Y2 - Optical fiber wiring device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION This invention relates to an optical fiber cable, an optical fiber cord, or other optical fiber cords, which are arranged with their extra lengths stored therein, or which are distributed and connected. The present invention relates to an optical fiber wiring device.

[0002]

2. Description of the Related Art An optical fiber core wiring device not only accommodates an extra length of an optical fiber core, but also organizes a connection part between optical fiber cores, that is, a fusion splicing part and a connector connecting part. Is to be stored. As a storage section of the optical fiber core wiring device as described above, for example,
As shown in JP-A-23685, a plurality of upper and lower grooves are formed on opposing surfaces of left and right walls arranged opposite to each other, and the left and right ends of the shelf can be slid in the grooves on the left and right walls. , And the shelf is erected between the left and right walls so as to be able to be taken in and out,
In some cases, the extra length of the optical fiber was stored on the shelf.

[0003]

However, in the above-mentioned conventional optical fiber cable wiring apparatus, the left and right walls must be bent in the thickness direction to form grooves in a large number of upper and lower stages. , It is necessary to position the grooves formed in the right side wall with high precision and face each other, and when there is an error in the gap between the grooves in the left and right side walls, it is difficult to slide the shelf smoothly so that it can be put in and out. In the state in which the shelf is drawn out from the side wall to the front side long, most of the shelves are in a free state, and there is a problem that stability is deteriorated. Further, since the formation of the groove in the side wall requires high precision, there is also a problem that the production is difficult, and it is necessary to perform the assembly with sufficient care, which is troublesome.

[0004] The present invention solves the above-mentioned problems, and makes it easy to manufacture and assemble parts.
The tray main body for storing the extra length of the optical fiber core wire can be smoothly inserted into and taken out of the frame, and does not adversely affect the extra length stored therein when the tray main body is taken in and out. It is an object of the present invention to provide a highly reliable optical fiber core wiring device that can stably support a tray main body even when the tray is extended from the front of the frame.

[0005]

Means for Solving the Problems An optical fiber wiring apparatus of the invention comprises a rack body, capable out for this rack member
In an optical fiber core wiring device having a storage tray stacked in a large number of upper and lower stages, a cylindrical outer guide has a round bar.
The Jo or cylindrical inner guide was out capable fitting inserted
Left, with the right guide rod, left, of the right guide rod outer guide
Left and right extending the ends of the
It is fixed to the mounting member, the left and right guide rods are arranged at the same height position and arranged in a number of upper and lower stages, and between the left and right guide rods of each stage, the optical fiber core is provided on the storage tray. tray body for accommodating the extra length portion of the arranged respective, left of the tray body, right
Connect the connecting pieces fixed to the tip of the wall to the left and right guide rods
Connect to the tip of the inner guide, and
The engaging pieces fixed to the end of the left and right side walls of the main body
Sliding in the front and rear direction on the outer guide of the left and right guide rods
And the connecting pieces and engaging pieces on the left and right side walls of the tray body.
Insert the optical fiber core wire between the
A notch is formed for inserting .

[0006]

The optical fiber wiring device of the present invention has a cylindrical shape.
Take out the round bar or cylindrical inner guide to the outer guide
The required number of guide rods that can be inserted
Place the ends of these outer guides in the vertical direction on the back of the frame.
The guide rods may be positioned and fixed to the left and right mounting members, respectively , which extend, and the production and assembly of the parts constituting the guide rod can be facilitated.

Further, the tip of the tray body is connected to the tip of the inner guide of the guide rod by a connecting piece, and the end of the tray body is slidably engaged and supported by the outer guide by the engaging piece. mounting of the tray it is easy, in particular, Te <br/> by a the use of a connecting piece and the engaging piece, in a state in which the tray body to guide bar always supported at four locations, the storage tray against hard It can be moved in and out, the movement is smooth , and when the storage tray is moved in and out
Into and out of the cutout provided in the side wall of the tray body.
Even if the optical fiber core moves, the cylindrical outer guide R
It does not adversely affect the extra length of the optical fiber cable , such as sliding on the surface and low frictional resistance .

Furthermore, the tray main body, be drawn out longer from the front of the rack body, above the end portion on both sides to the connecting piece to the inner guide
Therefore, it is fixed, and the engagement pieces fixed on both sides of the distal end
Since the tray body is movably supported by the outer guide , the tray body can be stably supported by the frame, and the reliability is high.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral 1 denotes a frame of a fiber core wiring device for a fiber cable. The frame 1 is a frame in which an L-shaped steel is framed in a vertically long rectangular parallelepiped shape, and has an upper wall, a bottom wall, a rear wall, and The right side walls are respectively fixed, and an openable and closable door (not shown) is attached to the opened front.

At the upper and middle portions of the frame 1, storage trays 2 to be described later are stacked up and down several steps each, and a rear panel 3 for constituting a unit is fixed to the rear wall of the frame 1. ing. In the upper end portion, the lower side portion and the lower end portion of the intermediate portion in the frame 1, when connecting the frames of the left and right fiber core wiring devices, a crossover for storing the extra length of the optical fiber cable. Extra length storage shelves 4 are provided. Further, fixtures 5 for fixing the optical fiber core wires accommodated in the frame 1 in multiple stages in the vertical direction are provided on the left and right edges of the upper end portion and the intermediate portion in the frame 1 respectively.

As shown in FIGS. 1, 2, and 3, left and right mounting members 6 each having a hollow prism shape extending substantially entirely in the vertical direction are fixed to both left and right ends of the rear panel 3, respectively. I have. The base ends of the outer guide 7 are fixed to the left and right mounting members 6, respectively.
The extensible guide rod 9 is inserted so as to be slidable in the front-rear direction.

The left and right guide rods 9 are arranged at the same height, extend horizontally from the back side to the front side, and are provided at equal intervals in the vertical direction. The outer guide 7 is formed in a substantially cylindrical shape, and the inner guide 8 is formed in a substantially round bar shape or a cylindrical shape, and is prevented from falling out of the outer guide 7 at an extended end of the guide rod 9 by appropriate means.

The storage tray 2 is configured as follows. That is, on the outer surface of the left and right side walls 11 of the tray main body 10 having a flat rectangular shape, the left,
The right connecting piece 12 and the left and right engaging pieces 13 located at the distal end (rear side) are fixed by screws or the like. As shown in detail in FIG. 4, the left and right connecting pieces 12 are fastened and fixed to the distal end surfaces of the inner guides 8 of the left and right guide bars 9 by screws 14.
As shown in detail in FIG. 5, the outer guides 7 of the left and right guide bars 9 are slidably engaged and supported in the longitudinal direction.

The tray body 10 is provided with left and right guides.
It is arranged between the rods 9 and housed in the frame 1 so as to be able to be taken in and out. When the tray main body 10 is taken in and out, the inner guide 8 is taken in and out of the outer guide 7 so that the guide rod 9 expands and contracts. At this time, even if the inner guide 8 is pulled out from the front of the outer guide 7 the longest, the engaging piece 13 fixed to the tray main body 10 is positioned on the outer guide 7 so that the tray main body 10 and the outer guide 7 (The depth direction) and the mounting position of the engagement piece 13 are set.

The mounting portion 12a of the connecting piece 12 and the engaging portion 13a of the engaging piece 13 have notches 12b, 1
3b, the notch 12b of the connecting piece 12 is fitted to the screw 14 and the notch 13b of the engaging piece 13 is fitted to the outer guide 7 by placing the tray body 10 on the guide rod 9 from above. ing.

Front and rear walls 15 and 16 are formed on the tray body 10 at the same height as the left and right walls 11, and the left and right walls 11 are provided between the connecting portions of the connecting piece 12 and the engaging piece 13. Cutouts 17 are formed in the tray body 10 for inserting and removing optical fiber cores into and out of the tray main body 10, and the storage portion 1 for storing excess lengths of the plurality of optical fiber cores is provided on the bottom plate of the tray main body 10.
8 are provided. An R guide 1 in which the extra length of the core wire can contact the storage portion 18 with a minimum curvature diameter or more that is allowed.
9. A plurality of cable stoppers 20 for storing the extra length of the cable
And a cord holder 21 are provided. A holder 2 for connector connection for accommodating the connection portion of the optical fiber core is provided at an appropriate position on the bottom plate of the tray body 10.
2 and a sleeve holder 23 for the fusion splice.

Further, a display board 24 is mounted on the outer surface of the front wall 15 of the tray body 10, and the display board 24 is
It is used to represent the storage line in the inside. A suction member 25 is fixed to the outer surface of the back wall 16 of the tray main body 10, and the suction member 25 is sucked to the back panel 3 by magnetic coupling or the like in a state where the storage tray 2 is stored in the frame 1. Is prevented from unintentionally sliding out of the frame 1 and opening.

The above-mentioned storage trays 2 are mounted on the left and right guide bars 3 of the upper and lower six stages provided on one back panel 3 and are stacked in a stack of six. Are arranged closely in the up-down direction in the frame 1, and a storage tray 26 different from the storage tray 2 for optical fiber core wiring is provided at the lower end in the frame 1.

Next, use of the optical fiber wiring apparatus of the embodiment configured as described above will be described. In this wiring device, the optical fiber cable is introduced into the frame 1 from above or below the frame 1, the bundle of the introduced optical fiber cables is fixed to the fixture 5, and the core of the cable is Each of the storage trays 2 is stored in the tray main body 10 with an extra length provided. The extra length portion stored in the tray body 10 is supported and supported by the R guide 19 and the core stopper 20 in the storage portion 18, and is held by the core holder 21.

When one optical fiber core is connected to the other optical fiber core by a connector, the connector is held by a holder 22 provided at an appropriate position on the tray main body 10, and one optical fiber core is connected to the optical fiber core. If the other optical fiber is fused and connected, the sleeve holder 23 is provided with the fusion portion at a position different from that of the holder 22 of the tray body 1.
To hold. Then, the optical fiber core tray body 10
Is inserted through a notch 17 provided in the side wall 11 of the tray body 10.

When the tray main body 10 of the storage tray 2 in which the optical fiber cores are stored is pulled out of the frame 1, the remaining portion of the optical fiber cores of the tray main body 10 is extended by the size of pulling the tray main body forward. The long part will move. At this time, the extra length wound as described above has a smaller diameter by the amount pulled out, but the R guide 19 and the core stopper 2
By setting the value to 0, the winding diameter of the extra length portion is maintained to be equal to or more than the minimum curvature diameter, and the extra length portion is kept so as not to have an excessively small curvature diameter. Further, even if the inner guide 8 of the guide rod 9 is pulled out, the inner guide 8 is prevented from coming off by the outer guide 7 and cannot be pulled out more than necessary, so that the extra length does not have an excessively small curvature. Is done.

Further, when the optical fiber cable housed in the tray body 10 is housed in another frame 1, it is housed with an extra length provided in the extra length storage shelf 4, and via the extra length. And store it in another body. When the tray main body 10 of the storage tray 2 is returned into the frame 1 while shortening the guide rod 9, the extra length of the optical fiber core in the tray main body 10 is restored by the restoring force of the core. In order to return to the diameter, the fed optical fiber core wire returns to the state before the tray body 10 was pulled out.

In this embodiment, the inner guide 8 is slidably fitted into the outer guide 7 of the left and right guide rods 9, and the left and right connecting pieces 12 and the left and right engaging pieces 13 are inserted into the tray body 10. After fixing, the connecting piece 12 was connected to the tip of the inner guide 8 and the engaging piece 13 was slidably engaged with the outer guide 7 fixed to the frame 1 via the back panel 3. The main body 10 is always supported at four places by the guide rods 9, so that the tray main body 10 can be smoothly taken in and out in a stable state, and the components constituting the storage tray 2 and the guide rods 9 can be easily manufactured and assembled.

In the present invention, the cord holder 21 is used.
, And one of the holder 22 and the sleeve holder 23 for holding the connector is omitted.
The member for supporting the extra length of the optical fiber core and the member for holding the connection part of the core and the like provided on the bottom plate of the tray main body are not limited to the embodiment and can be appropriately changed as needed.

Further, the number of rear panels, the number of guide rods and the number of storage trays can also be changed as appropriate without being limited to the embodiment. The rear panel is omitted and the guide rods are provided on the rear wall of the frame with columnar mounting members. May be fixed via
The present invention is not limited to an optical fiber cable, and can be applied to a core of an optical fiber cord.

[0026]

As described above, the present invention is directed to an optical fiber cable wiring apparatus including a frame, and storage trays which are removably accommodated in the frame and are stacked in a number of upper and lower stages. Left and right panels extending vertically on the back of the frame
The end portion of the outer guide is fixed to the attached member, and extendable left and right guide rods, which are inserted into and out of the outer guide so that a round or cylindrical inner guide can be inserted and removed, are arranged in a number of upper and lower stages. of the tip portion between the inner guide, the provided storage tray and connected by a connecting piece to the front end portion of the tray main body for accommodating the extra length portion of the optical fiber core, the engagement piece of the terminal portion of the pre-SL tray body The left and right walls of the tray body are connected by slidably engaging and supporting by the expansion and contraction of the guide rod.
Insert the optical bi-fiber core wire between the
The following effect is obtained because the notch portion for inserting and removing is formed .

That is, in the optical fiber core wiring device of the present invention, the cylindrical outer guide has a round bar shape or a cylindrical inner guide.
A guide rod is required in advance so that the guide can be inserted and removed.
Manufacture several pieces, and attach the ends of these outer guides to the back of the frame.
What is necessary is just to position and fix it to the left and right mounting members extending in the vertical direction of the surface, respectively, so that the parts constituting the guide rod can be easily manufactured and assembled.

Also, the distal end of the tray body is connected to the distal end of the inner guide of the guide rod by a connecting piece, and the distal end of the tray body is slidably engaged and supported by the outer guide by the engaging piece. mounting of the tray it is easy, in particular, Te <br/> by a the use of a connecting piece and the engaging piece, in a state in which the tray body to guide bar always supported at four locations, the storage tray against hard It can be moved in and out, the movement is smooth, and when the storage tray is moved in and out
Into and out of the cutout provided in the side wall of the tray body.
Even if the optical fiber core moves, the cylindrical outer guide R
It does not adversely affect the extra length of the optical fiber cable , such as sliding on the surface and low frictional resistance .

Further, even if the tray body is pulled out from the front of the frame for a long time, the tip of the tray body remains in the inner guide.
It is fixed by connecting pieces and fixed on both sides of the distal end.
Since the mating piece is slidably supported by the outer guide , the tray body can be stably supported by the frame, and the reliability is high.

[Brief description of the drawings]

FIG. 1 is a schematic front view showing an optical fiber core wiring device according to an embodiment of the present invention with a door removed.

FIG. 2 is an enlarged front view showing a stacked storage tray portion of the optical fiber core wiring apparatus of FIG. 1;

FIG. 3 is a perspective view showing a main part of FIG. 2;

FIG. 4 is an enlarged perspective view showing a connecting piece of FIG. 3;

FIG. 5 is an enlarged perspective view showing an engagement piece of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Frame 2 Storage tray 3 Back panel 6 Mounting member 7 Outer guide 8 Inner guide 9 Guide rod 10 Tray main body 11 Side wall of tray main body 12 Connection piece 13 Engagement piece 14 Screw 18 Storage part of extra length of optical fiber core wire

──────────────────────────────────────────────────続 き Continued on the front page (56) References JP-A 4-33002 (JP, U) JP-A 2-90804 (JP, U) Jiko 10625 (Taisho 12) (JP, Y 1T) (58 ) Surveyed field (Int.Cl. ⁶ , DB name) G02B 6/00 336 A47B 88/08

Claims (1)

(57) [Scope of request for utility model registration] 1. A and rack body, capable out for this rack member
In an optical fiber core wiring device having a storage tray stacked in a large number of upper and lower stages, a cylindrical outer guide has a round bar.
The Jo or cylindrical inner guide was out capable fitting inserted
Left, with the right guide rod, left, of the right guide rod outer guide
Left and right extending the ends of the
It is fixed to the mounting member, the left and right guide rods are arranged at the same height position and arranged in a number of upper and lower stages, and between the left and right guide rods of each stage, the optical fiber core is provided on the storage tray. Each of the tray bodies that store the extra length of
Connect the connecting pieces fixed to the tip of the wall to the left and right guide rods
Connect to the tip of the inner guide, and
The engaging pieces fixed to the end of the left and right side walls of the main body
Sliding in the front and rear direction on the outer guide of the left and right guide rods
And the connecting pieces and engaging pieces on the left and right side walls of the tray body.
Insert the optical fiber core wire between the
An optical fiber core wiring device, wherein a cutout portion for inserting is formed .