JPS589204Y2 - Optical fiber surplus length processing tape - Google Patents

Description

[Detailed description of the invention] Regarding the prior art, reference numeral 10 in FIG. 1 is a bobbin for processing the extra length 32 of the fiber core 300.

On its outer surface, collars 12 and 14 are provided at suitable intervals.

The fiber core wire 30 is passed through the groove 16 of the collar 12, and the extra length 32 is bent into an oval loop shape.
Pull it out from groove 18.

The extra length 32 is placed in, for example, a plastic bag 20 and wound around the bobbin 10.

In this way, the extra length can be processed without substantially increasing the transmission loss of the optical fiber.

OBJECT OF THE INVENTION To provide a processing tape whose excess length can be processed more easily than by putting it into a bag 20 as described above.

Example In "FIG. 2", 40 indicates the entire processing tape.

The body 42 is a rectangular thin film made of transparent plastic, such as polyester.

Further, the width A is constant and is equal to or slightly narrower than the interval B between the grooves 12 and 14.

51, 52, 53, and 54 are polygonal lines.

Of these, 51 and 53 are folded into a chevron shape.

Further, 52 and 54 are folded into a valley shape.

61.62, 63, and 64.65 are portions divided by polygonal lines 51 to 54.

Among them, the widths C of the intermediate portions 62, 63, and 64 are all equal.

The widths of the portions 61 and 65 at both ends are slightly longer (they may be equal).

71, 72, 73, 74, and 75 are slits.

They are all of equal length and are provided in a direction perpendicular to the length direction of the main body 42.

Further, both ends 70 extend close to both side edges 440 of the main body 42, but do not reach the side edges 44.

Further, both ends 70 are punched out into small circular shapes.

In the middle part 62°63.64, the slit 72
, 73 and 74 are provided at the center of each vertical width C.

Moreover, in the one end portion 61, the slit 71 is
The polygonal line 51 is provided at a position symmetrical to the slit 72 .

A slit 75 in the opposite end portion 65 is similarly provided.

How to use (1) First, fold the whole thing as shown in "Figure 3".

Then, all the slits 71 to 75 overlap at the same position.

Therefore, the tip 34 of the extra length 32 is passed through the entire slits 71 to 75.

(2) Pinch both ends of the processing tape 40 with fingers 80 (FIG. 4).

At this time, in the portion 65, the tip end 34 of the extra length 32 is also pinched together with the processing tape 40.

Then, it is pulled in the direction of arrow 82.

(3) Then, the folded processing tape 40 is unfolded, and at the same time, the extra length 32 is pulled in, and finally it becomes as shown in "Fig. 5".

That is, the extra length 32 is on the back side of the main body 42 between the slits 11 to 72 (indicated by a dotted line), and on the back side of the main body 42 between the slits 11 to 72 (indicated by a dotted line).
~73, it is on the front side (shown with a solid line), and so on.
They are supported by a single tape 40, alternately facing up and facing out.

Note that the fiber core 30 has elasticity, and when bent into a U-shape, it tends to expand roundly, so as shown in FIG.
The sling 1 is naturally supported at both ends 700 of the slings 1 to 50.

(4) After doing the above, as shown in "Figure 6", attach the part 61 side of the tape 40 to the bobbin 1 with adhesive tape 84 or the like.
Attach to 0.

Then wind it around bobbin 10.

(5) In addition, when the extra length 32 is very short, only one slit 71 is required as shown in "Fig. 7".

Also, in that case, the polygonal line will no longer be necessary.

(6) In addition, not only one fiber core, but also one unit (for example, six fibers) or more can be treated with the tape 4-0 in the same way.

Effects of the invention (1) Since slits are made in one piece of processing tape, manufacturing is easy.

(2) Since it can be used as described above, the excess length of the fiber can be easily handled and no stress is placed on the fiber core.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the prior art, Fig. 2 is a plan view of an embodiment of the present invention, Figs. The figure is an explanatory diagram when the fiber surplus length is short. 30...Fiber core wire, 32...Extra length, 40...Processing tape, 42...Main body, 71, 72, 73° 74.75. ·····slit.

Claims (1)

[Claims for Utility Model Registration] At least one slit with both ends not reaching the side edges of the main body in the direction perpendicular to the length of the long and narrow main body with a constant width.
An optical fiber surplus length processing tape characterized by the present invention.