JP2000041325A - Overhead drop cable anchor part holding device and optical cable holding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide with a simple method a holding device, which protects and holds the anchor part of an overhead drop cable and which can avoid a trouble that separation between an optical fiber and a support wire is spread from a separation part. SOLUTION: A Y-shaped cable holding means B is provided on the surface of the extension part of the base plate of an S metal fitting. A holding element is composed of a pair of protrusions 11 and 12, a holding plate 14 and connecting means 15 and 16 which disconnectably connect the protrusions to the holding plate. The Y-shaped holding means B is composed of a number of the holding elements b1-b5 arranged into a Y-shape. An overhead drop cable main part, a separated support wire T and the separation part C1 of an optical fiber cable are fitted between the pairs of protrusions 11 and 12 and held by the holding plates 14, and the holding elements are fixed to the surface of the extension part of the base plate to obtain the anchorage function of an overhead drop cable.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a holder for protecting a retaining portion of an aerial drop cable, and an optical fiber (or an optical fiber cable or an optical cable) splits from the supporting line at a separation portion between the supporting line and the optical fiber. Such obstacles can be effectively prevented by simple means.

[0002]

2. Description of the Related Art An overhead drop cable DC in which a support wire T and an optical fiber cable C are integrally coated is, as shown in FIG. And hooked on the cable support to hook the hook F of the S hardware G on the cable support. The optical fiber cable C is torn off from the support line T to be separated,
The separated portion C1 is drawn into a terminal such as a house. If the optical fiber cable C and the support line T are torn while being torn, the torn portion S of the optical fiber cable C gradually recedes due to vibration, weight, and the like of the separation portion C1 from the support line T of the optical fiber cable C. Will loosen. For this reason, conventionally, vinyl tape t is wrapped around the aerial drop cable DC to prevent the torn portion from retreating naturally.

[0003]

However, since the vinyl tape t deteriorates and gradually expands, it is not always possible to sufficiently prevent the retraction of the tearing portion. The progress of the slackening of C1 cannot be completely prevented. Also, vinyl tape t
Since it is necessary to wind the vinyl tape t while tightening it considerably strongly, the winding work of the vinyl tape t is not easy and requires much labor. Therefore, the present invention
An object of the present invention is to develop an optical cable holder that can be easily attached to the overhead drop cable DC and that can reliably prevent the tear portion from advancing.

[0004]

Means taken to solve the above problem are constituted by the following (a) to (c). (A) Y-shaped cable holding means is provided on the surface of the extension of the S metal substrate; (b) a pair of projections and holding pieces, and connecting means for detachably connecting the projections and holding pieces; (C) the overhead drop cable main body, the separated support wire, and the separated portion of the optical fiber cable are separated from each other by the above-mentioned Y-shaped holding means. Fitting between the pair of projections, pressing with the pressing piece, and fixing them to the surface of the extension of the substrate.

[0005]

[Work] An aerial drop cable DC main body, separated support wires are formed between a pair of projections of a large number of holding elements, which form Y-shaped cable holding means on the surface of the extension of the S metal substrate. T and the separation portion C1 of the optical fiber cable are fitted respectively, and thereafter, the holding plate is fixed to the protrusion by an appropriate locking means. As a result, the overhead drop cable DC is fixed to the extension of the S-metal substrate by a number of holding elements. Aerial drop cable DC main body, separated support line T, and separated portion C of optical fiber cable
Reference numeral 1 denotes a pair of protrusions and holding pieces of the holding element on the surface of the extended portion of the S-metal substrate frictionally held respectively, and the extended portion of the S-metal substrate is separated from the separation portion C1 of the optical fiber cable.
It does not extend or deform due to the weight of the substrate, so that the tearing portion S is reliably prevented from retreating by the extension of the S metal substrate. Therefore, the loosening of the separation portion C1 of the optical fiber cable naturally is reliably prevented.

[0006]

[Embodiment] Next, an embodiment will be described with reference to FIGS. The S-metal substrate 1 has an extension portion 10 having a total length L of about 100 mm and a width W of about 30 mm. A Y-shaped holding means B is provided on the surface of the extension portion 10 of the substrate 1 of the S hardware G. The Y-shaped holding means includes a cable body holding portion D into which the overhead drop cable DC body fits, a support line holding portion B1 holding the support line T, and an optical cable holding portion B2 holding the separated portion C1 of the optical fiber cable. It consists of Each of the holding portions D, B1, and B2 is composed of individual holding elements b1 to b5,
1, b2, b3 and b4 and b5 have different sizes,
The basic structure is the same. Holding elements b1, b2, b
Reference numerals 3 and 5 denote a pair of projections 11 and 12 and a pressing piece 14 provided integrally with the projection 12 via a hinge portion 13. A locking claw 15 is provided outside the pressing piece 14 and the other projection 11 is also provided. A locking claw 16 is provided. Since the holding element b4 also serves as a holding element for the support wire T and a holding element for the separation portion C1 of the optical fiber cable, there is one holding piece 14 but two pairs (four) of protrusions. With the holding pieces 14 of each holding element opened, the aerial drop cable DC main body, the support wire T, and the separated portion C1 of the optical fiber cable are fitted in a pair between the projections 11 and 12, respectively.
Is closed, and the locking claw 15 is engaged with the locking claw 16 of the projection 11. In this state, the aerial drop cable DC main body, the support wire T, and the separation portion C1 of the optical fiber cable are held by the holding piece 1.
4 is pressed by the convex portion 17 on the back surface, and is firmly fixed by the projections 11 and 12 and the pressing piece 14. Unless the locking claws 15 and 16 of each holding element are removed, the aerial drop cable DC is fixed to the extension 10 of the substrate and is held firmly. Is held. When the number of holding elements of the holding portions B1, B2, and D for the supporting line T, the separation portion C1, and the overhead drop cable DC main body is two, the arrangement of the holding elements should be as shown in FIG. Good.

[0007]

As described above, since the holder of the present invention is composed of the extended portion of the substrate made of S metal and a large number of holding elements arranged in a Y-shape, it can be mounted on the overhead drop cable. It is simple, easy, and quick, and can improve work efficiency. Further, unlike the tape, the extended portion of the S metal substrate is excellent in strength and does not gradually expand or deform, so that its holding function does not deteriorate for a long time.

[Brief description of the drawings]

FIG. 1 is a perspective view of an overhead drop cable.

2A is an exploded plan view of a plurality of holding elements provided in a portion surrounded by a dotted line in FIG. 3 below, and FIG. 2B is a side view of the holding element in a portion surrounded by the dotted line in FIG. It is.

FIG. 3 is a plan view of the embodiment.

FIG. 4 is a plan view of another embodiment.

5A is a front view of a conventional overhead state of an overhead drop cable, and FIG. 5B is a cross-sectional view taken along line XX of FIG. 5A.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... S metal substrate 10 ... Extension part of S metal substrate 11, 12 ... Projection 13 ... Hinge part 14 ... Pressing piece 15, 16 ... Locking claw 17 ...・ Convex part DC ・ ・ ・ Aerial drop cable T ・ ・ ・ Support line C ・ ・ ・ Optical fiber cable C1 ・ ・ ・ Separation part of optical fiber cable D ・ ・ ・ Cable body holding part B1 ・ ・ ・ Support line holding part B2・ ・ ・ Optical cable holding part G ・ ・ ・ S hardware F ・ ・ ・ Hook S ・ ・ ・ Tearing part

 ──────────────────────────────────────────────────続 き Continuing from the front page (72) Inventor Akio Mogi 1440, Mukurosaki, Sakura-shi, Chiba Prefecture Inside Fujikura Sakura Plant (72) Inventor Suehiro Miyamoto 1440, Misaki, Sakura-shi, Chiba Prefecture Inside Fujikura Sakura Plant F Term (reference) 2H038 CA73 5G367 DA04 DB02 DC03

Claims (2)

[Claims] A Y-shaped cable holding means is provided on the surface of an extended portion of a substrate made of S metal, and a plurality of connecting means for detachably connecting the pair of projections and holding pieces and the projections and holding pieces are provided. Are arranged in a Y-shape to form the Y-shaped holding means. The overhead drop cable main body, the separated support wire, and the separated portion of the optical fiber cable are fitted between the pair of protrusions. An S hardware having a function of retaining an aerial drop cable, wherein the S metal is held by the holding piece and fixed to the surface of the extension of the substrate. 2. The Y-shaped holding means is formed by arranging a large number of holding elements comprising a pair of projections and a holding piece and a connecting means for detachably connecting the projection and the holding piece in a Y-shape. The overhead drop cable main body, the separated support wire, and the separated portion of the optical fiber cable are fitted between the pair of protrusions, pressed with the pressing pieces, and fixed to the surface of the extension of the substrate. , A retainer for retaining an imaginary drop cable.