JP2587846Y2 - Plastic optical fiber ribbon cable - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial applications] The present invention relates to optical communication, connection between devices,
The present invention relates to an optical fiber ribbon cable used for a sensor lead or the like, and more particularly, to an optical fiber ribbon cable having excellent cut strip properties.

[0002]

2. Description of the Related Art When a plurality of optical fibers are used as a stranded cable, there is a problem that the amount of light attenuation increases. This causes a problem of scratching.

As a means for solving these problems, there is known a ribbon cable in which a plurality of optical fibers are arranged in parallel and fused between two tapes.

[0004]

However, in such a ribbon cable in which a plurality of optical fibers are fusion-spliced with two tapes, the tape has poor peelability at the time of connector processing, and the tape is peeled. In this case, the wire is damaged, and a problem arises that the amount of light attenuation increases.

SUMMARY OF THE INVENTION An object of the present invention is to solve the problems of the conventional plastic optical fiber ribbon cable, to facilitate tape peeling, and to easily cut and strip a plastic optical fiber without damaging the plastic optical fiber. It is to provide a fiber ribbon cable.

[0006]

Means for Solving the Problems The present inventors have conducted various studies to achieve the above object, and as a result, have conceived of inserting a separate tape for a cut strip between two tapes. The idea was completed.

That is, the present invention provides a plastic optical fiber ribbon cable in which a plurality of plastic optical fibers are arranged in parallel and sandwiched between two tapes. A plastic optical fiber ribbon cable characterized in that a separate tape for a cut strip having a predetermined width is inserted in a width direction of the ribbon cable.

[0008]

In the plastic optical fiber ribbon cable of the present invention, a separation tape for a cut strip having a predetermined width is inserted between two tapes in the width direction of the ribbon cable. When performing, cut the ribbon cable at the position of the separate tape and tear off the separate tape, so that the two tapes can be easily peeled off, and the optical fiber can be easily exposed without damaging it. Can be.

[0009]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG. 1 is a plan view showing an example of the plastic optical fiber ribbon cable of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, and FIG. 3 is a sectional view taken along the line BB of FIG. , A plurality of plastic optical fibers 1 arranged in parallel
The ribbons are fused between the two tapes 2 and 3 to form a ribbon cable.

Between the two tapes 2 and 3 and above the plastic optical fiber 1, a separate tape 4 for cut strip having a predetermined width is inserted in the width direction of the ribbon cable. As shown in FIG. 4, the separate tape 4 for a cut strip is made of a plastic optical fiber 1.
May be inserted both above and below. In this way, it is preferable to insert into both, since the cut strip becomes easier.

The tapes 2 and 3 have a thickness of 25, for example.
Fluororesin film such as tetrafluoroethylene-hexafluoropropylene copolymer (FEP), polytetrafluoroethylene (PTFE), metal foil such as aluminum, copper, steel, etc., polyester film such as polyethylene terephthalate, polycarbonate film , Polyvinyl chloride film etc. are used,
To fuse the double-sided tapes 2 and 3, a fusing agent is used. Examples of the fusing agent include polyamide-based, polyolefin-based, polyurethane-based, and E.C. V. Hot-melt adhesives such as A-based and polyester-based are preferably used.

One of the two tapes 2 and 3 may be a base tape and the other may be a fusion tape. In this case, as the base tape, the above-mentioned polyethylene terephthalate film or the like is used, and as the fusion tape, a film made of a thermoplastic synthetic resin having a lower melting point than the base tape, for example, a polystyrene film having a thickness of 25 to 40 μm, polyethylene A film or the like is used.

As the separate tape 4, any film can be used as long as the film has a melting point higher than that of the above-mentioned fusing agent or the fusing tape. For example, when the above-mentioned film or fusing agent is used, A polyethylene terephthalate film having a thickness of 10 to 50 μm, a fluororesin film, or the like can be used.

The width of the separate tape 4 and the insertion interval (position) can be arbitrarily set as required. Further, in the above embodiment, the separate tape 4 is inserted above the optical fiber 1, but it goes without saying that it may be inserted below the optical fiber 1.

In the case of cutting and stripping the plastic optical fiber ribbon cable of the present invention, the ribbon cable is cut at the position of the separate tape 4 and the two tapes 2 and 3 are easily separated by peeling off the separate tape 4. The optical fiber 1 can be cut and stripped easily without damaging the optical fiber 1.

[0016]

According to the present invention, it is possible to easily cut and strip a plastic optical fiber without damaging it when processing a connector or the like.

[Brief description of the drawings]

FIG. 1 is a plan view showing an example of a plastic optical fiber ribbon cable of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a sectional view taken along line BB of FIG. 1;

FIG. 4 is a sectional view showing another example of the plastic optical fiber ribbon cable of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Plastic optical fiber 2 Base tape 3 Fusion tape 4 Separate tape

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G02B ⁶ /04-6/08 G02B 6/44 H01B 11/22

Claims (2)

(57) [Scope of request for utility model registration] 1. A plastic optical fiber ribbon cable in which a plurality of plastic optical fibers are arranged in parallel and sandwiched between two tapes, the width of the ribbon cable being between the two tapes. A plastic optical fiber ribbon cable in which a separate tape for a cut strip having a predetermined width is inserted in a direction. 2. The plastic optical fiber ribbon cable according to claim 1, wherein said two tapes are a base tape and a fusion tape.