JP2000089041A - Mark band for optical fiber - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a freely attachable and detachable mark band for optical fiber which is capable of preventing an optical fiber from being flawed. SOLUTION: The mark band for optical fiber is constituted of a thermoplastic synthetic resin holding frame 12, which is formed by combining a body 13 and a lid 14, a means, which makes the lid 14 engaged with the body 13, a soft member 16, which consists of a thermoplastic elastomer joined integrally with the internal sides of the body 13 and the the lid 14 by thermal fusion, and a display part 17, which is provided on the outside of the lid 14. The soft member 16 is elastically deformed, mounted on the optical fiber without causing the optical fiber to be flawed, and identification display is performed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mark band for an optical fiber which is detachably attached to a plurality of optical fibers in order to individually identify the optical fibers when connecting and wiring the plurality of optical fibers.

[0002]

2. Description of the Related Art As shown in FIG. 5, a conventional wiring mark clip is formed by forming a main body 1 having a U-shaped cross section from a thermoplastic synthetic resin material having elasticity, and projecting inside both end edges of the main body 1. 2, 2 'are formed, and a chevron ridge 4 is formed inside the main body 1, and numerals and symbols 3 are displayed on the outside of the main body 1. When pressed toward, the elasticity of the resin expands the gap between the both ends and can be narrowly attached to the outer periphery of the electric wire, the protrusions 2 and 2 ′ are prevented from coming off, and the chevron ridges 4 are prevented from slipping. In addition, there is a mark band in which a crack is opened in a short pipe shape using a mounting rod (jig) to open the crack and the wire is attached to an electric wire. Also,
In addition, a marked tube may be covered.

[0003]

However, the above-mentioned conventional mark clips and mark bands cannot fix a plurality of optical fiber cables, and may damage the optical fibers when the optical fiber cables are attached to the optical fibers. Further, the tubes cannot be attached after wiring, and the tubes are not easily removed. SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object to provide a detachable optical fiber mark band that can prevent an optical fiber from being damaged.

[0004]

The present invention employs the following configuration to achieve the object. In other words, the optical fiber mark band of the present invention is a holding frame formed by combining a main body and a lid made of a thermoplastic synthetic resin, and means for engaging the lid and the main body when the lid is closed, A soft member made of a thermoplastic elastomer provided inside the main body and the lid portion, and a display portion provided outside the lid portion, wherein the main body, the lid portion, and the soft member are integrated by heat fusion. It is joined to.

The mark band for an optical fiber according to the present invention is provided with means for fixing to a mounting panel such as a chassis outside the main body.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment (hereinafter, referred to as an "embodiment") of a mark band for an optical fiber according to the present invention will be described with reference to the accompanying drawings. FIG. 1 is a perspective view showing an open state (before use) of an optical fiber mark band, and FIG. 2 is a perspective view showing a closed state (use state) of FIG. As shown in FIG. 1, the mark band 11 for an optical fiber is formed by a substantially U-shaped main body 13 made of a thermoplastic synthetic resin (for example, polyamide) having appropriate elasticity, and a thin hinge 15 from one end of the main body 13. Body 13
And a substantially U-shaped lid 14 provided integrally therewith to form a holding frame 12. The main body 13 of the holding frame 12 and the lid 1
4 is a soft member 1 made of a thermoplastic elastomer.
6 is provided, and a display unit 17 is provided outside the lid unit 14. Further, an engaging projection 18 is provided at the other end of the lid portion 14, and an engaging piece 19 that engages with the engaging projection 18 is provided at the other end of the main body 13 opposite to the hinge 15, The cover 14 and the main body 13 are formed so as to engage with each other when the cover 14 is closed.

[0007] The main body 13 and the lid portion 14 and the soft member 16 made of a thermoplastic elastomer are integrally heat-sealed and formed by insert molding and two-color molding.

The characters, numerals, symbols, etc. of the display unit 17 are
It is provided by sticking a label, hot stamping, printing, or the like.

An anchor-type mounting leg 2 is provided outside the main body 13.
0 is provided so that the optical fiber mark band 11 can be fixed to a mounting panel (not shown) such as a chassis by a snap-fit method. In addition, the method of fixing to the mounting panel is not limited to the snap-fit method using the mounting legs 20, but may be, for example, a fixing method using double-sided tape instead of the mounting legs 20.

As the thermoplastic synthetic resin forming the main body 13 and the lid portion 14, for example, polypropylene, polystyrene, ABS, polycarbonate and the like can be mentioned in addition to the above polyamide.

The thermoplastic elastomer forming material of the soft member 16 includes polyolefin-based elastomer, polystyrene-based elastomer, polyolefin-polystyrene-based elastomer, polyamide-based elastomer, and polyester-based elastomer. The hardness of this thermoplastic elastomer (JIS-
A) is preferably about 10 to 90 in order to obtain a suitable elasticity. Further, it is more desirable that the thermoplastic elastomer is a foam, and in that case, examples of a forming material include a polystyrene-based elastomer, a polyurethane-based elastomer, a polyamide-based elastomer, and a polyester-based elastomer. By using a thermoplastic elastomer as a foam, vibration and impact applied to the optical fiber can be reduced, and the optical fiber can be prevented from being damaged.

Next, an embodiment of a method of manufacturing a mark band for an optical fiber according to the present invention will be described. Body 13
When the lid portion 14 and the soft member 16 are heat-sealed by insert molding, first, the main body 13
And the lid 14 are set in a mold. At this time, a space having the shape of the soft member 16 is formed between the mold and the main body 13 and the lid 14. Next, when the thermoplastic elastomer is injected and filled into the space while being pressurized, a soft member 16 is formed in the space, and the main body 13 and the lid 14 are joined to the soft member 16 by heat fusion.

In place of the insert molding, the mold may be rotated or slid, and injection molding may be performed using a two-color molding machine. In this case, the main body 13 and the lid 1
It is only necessary to form the soft member 16 by primary molding and then by secondary molding, and it is not necessary to set the primary molded product in a mold as in insert molding, so that the manufacturing process can be further simplified. In the above embodiment, the combination of the main body 13 and the lid portion 14 with the thermoplastic elastomer forming the soft member 16 may be any as long as it can be thermally fused to each other, and is not limited to that of the present embodiment. is not.

Next, how to use the optical fiber mark band shown in this embodiment will be described. When fixing the mark band 11 for an optical fiber of the present embodiment to a place where the marking of the optical fiber 21 is desired, first, the plurality of optical fibers 21 are relatively soft members 16 with the cover 14 opened as shown in FIG. After arranging the optical fiber mark band 11 so as to be positioned inside the cover member, the cover portion 14 is closed and the engaging projection 18 of the cover portion 14 is engaged with the engaging piece 19 of the main body 13 as shown in FIG. The optical fiber 21 is attached inside the soft member 16 as described above. When the cover 14 is closed at this time, the soft member 16 made of the thermoplastic elastomer is elastically deformed without using the softness of the thermoplastic elastomer by using the softness of the thermoplastic elastomer, and the optical fiber 21 is narrowly attached. The band 11 can be fixed to the optical fiber 21. Further, since the soft thermoplastic elastomer is provided inside the lid portion 14 and the main body 13, the optical fiber 21 can be prevented from being damaged, and the soft member can be elastically deformed and tightly attached to prevent slippage. In addition, the optical fiber can be identified by the display unit 17 provided outside the cover unit 14. In addition, the engaging projection 1
By disengaging the engagement piece 8 from the engagement piece 19 to bring it into the open state shown in FIG. 1, it can be easily removed from the optical fiber.

Further, by fixing the main body 13 to a mounting panel such as a chassis by a fixing means such as the mounting leg 20 or a double-sided tape, the identification display of the optical fiber 21 and the fixing of the optical fiber can be performed simultaneously.

The engagement means between the main body 13 and the cover 14 is shown as a combination of the engagement projection 18 and the engagement piece 19.
The present invention is not limited to the above-described embodiment, and may be any as long as the lid 14 and the main body 13 are engaged when the lid 14 is closed.

In the above embodiment, the case where a plurality of single-line optical fibers 21 are fixed in parallel is shown.
As shown in the above, a cable 22 in which a plurality of optical fibers 21 are bundled in parallel may be fixed.

Further, the present invention is not limited to the above embodiment, and the main body and the lid may be provided separately and combined. The second embodiment will be described with reference to FIG. The difference between the optical fiber mark band of the second embodiment and the first embodiment is that the locking pieces 40 are provided at both ends of the main body 33, respectively.
Projections 37 are provided at both ends of the U-shaped lid 34 to form a hat shape, and the projections 37 are inserted into the engagement pieces 40, and holes 39 for engaging the engagement pieces 40 with the edges 39. Are formed, and each of the holes 3 of the both protruding pieces 37 of the lid portion 34 is formed.
8 is inserted from above into both locking pieces 34 of the main body 33,
The holding frame 32 is formed by engaging with and closing.
Note that one of the two projecting pieces 37 of the lid 34 may be a locking projecting piece that engages with the engaging piece 40 as in the first embodiment.

[0019]

Since the present invention is configured as described above, the following effects can be obtained.

According to the first aspect of the present invention, after the optical fiber mark band is arranged so that the optical fiber is relatively positioned within the soft member with the lid open, the lid is closed and the lid is closed. By engaging the optical fiber in the soft member by engaging with the main body, the soft member made of the thermoplastic elastomer can be elastically deformed and fixed to the optical fiber without crushing the optical fiber by using the softness of the thermoplastic elastomer. In addition, since the optical fiber can be identified by the display portion provided outside the lid portion, a removable optical fiber mark band that can prevent the optical fiber from being damaged can be provided.

According to the second aspect of the present invention, since the main body is provided with the fixing means to the chassis or the like, the identification display of the optical fiber and the fixing of the optical fiber can be performed simultaneously.

[Brief description of the drawings]

FIG. 1 is an open perspective view showing an embodiment of the present invention.

FIG. 2 is a perspective view of a closed state showing one embodiment of the present invention.

FIG. 3 is a perspective view showing another example of use of one embodiment of the present invention.

FIG. 4 is an exploded perspective view showing another embodiment of the present invention.

FIG. 5 is a perspective view showing a conventional mark band.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Fixture for optical fibers 12 Holding frame 13 Main body 14 Lid 15 Hinge 16 Soft member 17 Display part 18 Engagement rim 19 Engagement piece 20 Mounting leg 21 Optical fiber 22 Optical fiber

Claims (2)

[Claims] 1. A holding frame formed by combining a main body made of a thermoplastic synthetic resin and a lid, means for engaging the lid with the main body when the lid is closed, An optical fiber mark comprising a soft member made of a thermoplastic elastomer provided on the inside and a display unit provided on the outside of the lid, wherein the main body, the lid and the soft member are integrally joined by heat fusion. band. 2. The optical fiber mark band according to claim 1, wherein a fixing means for fixing to a mounting panel such as a chassis is provided outside the main body.