JPH1189062A - Closure apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a closure apparatus for a pole assuring high safety through protection thereof, in order to improve work efficiency and realize safe connection and maintenance of apparatus and recluction of fatigue through working by pulling in a cable near the ground, connecting, and wiring in the vicinity of the ground. SOLUTION: A closure A, B including a cable connecting section are attached to a pole C. This closure has a cable leading pipe 1 having a cable-introducing hole 11 to a slide base 3 via a flexible tube 2, engages this slide base 3 is freely descendable to a pole installing member 4, for example, a guide rail 5 having a mounting band and droops in coupling to a weight inserted freely movably into a guide pipe 7 via a wire rope 6 and also provides a sheave 9, which is mounted on the pole for hooking a wire rope 6. The slide base 3 is also provided with a retaining metal fitting 10 for fixing a support wire of the cable (D) led from the cable pull in pipe 1 and the flexible tube 2 and the closures A, B provided near the retaining metal fitting 10.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a closure for protecting a connection portion of a communication cable such as an optical cable, and more particularly to an improvement in a closure device for installing and deploying a closure for an optical cable on a telephone pole.

[0002]

2. Description of the Related Art In the field of telecommunications, in general, a cable is terminated using an aerial closure or the like at a connection portion where a lead-in optical cable or a power line is drawn in or connected and branched, and one cable is connected to another one. Or more cables are connected, and drop wires to individual telephone subscribers are connected. Some aerial closures require cables to be pulled up by work above ground by mounting the closures at high places using telephone poles so that third parties cannot easily access the cable when the cable is outdoors. .

[0003]

In the conventional overhead closure of the container for protecting the connection portion of the cable, the overhead closure is used for a mounting member of a power pole or used for an overhead cable wired to the power pole. Cables are required to be pulled in, and maintenance, repair, or removal operations are also performed at heights above the ground, making installation and wiring connections difficult, resulting in poor workability and reduced fatigue in various operations. It is not only large but also has a problem in safety, and it tends to be complicated, and there are various problems in terms of management and assembly workability. The present invention is intended to eliminate these conventional disadvantages, and it is possible to realize safe work on the ground and reduce the degree of work fatigue while safely incorporating a cable connection closure or the like into a utility pole, The purpose of the present invention is to provide a closure device in which the connection and maintenance of each device can be easily performed in a simple and inexpensive form by improving the work efficiency by facilitating the cable pull-in and the manual connection wiring work at the same time. It is.

[0004]

SUMMARY OF THE INVENTION The present invention relates to a closure device for assembling a closure provided with a cable connection portion to a utility pole, wherein a cable lead-in pipe having a cable introduction hole is provided on a slide base via a flexible tube. Is mounted on a guide rail having a telephone pole mounting member so as to be able to move up and down, and is connected to and suspended from a weight movably inserted into a guide pipe via a wire rope, and the wire rope is attached to an upper part of the telephone pole and hung. A locking member for locking and supporting a support line of the cable drawn in from the cable drawing pipe and the flexible tube, and a closure provided near the locking member on the slide base. Cable can be easily connected and It is those with improved efficiency.

According to the present invention, the closure device is easily incorporated into a utility pole, and a cable draw-in pipe having a wrapper tube for introducing a cable is suspended along the utility pole, so that the safety of the cable can be secured and the utility pole can be protected. The object is to move up and down along the road and to be fixedly held at an appropriate position, thereby simplifying safe ground work and improving work efficiency of wiring work and maintenance work.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the embodiment of the present invention, an outdoor line is drawn in from a 360-degree direction through a cable introduction hole attached to a utility pole, and a cable connection of a closure provided on a slide base via a cable drawing pipe and a flexible tube. Branch connection. The slide base was fitted to a guide rail having a utility pole mounting member so as to be able to move up and down, and was connected to and suspended from a weight movably inserted into a guide pipe via a wire rope, and attached to the upper part of the utility pole. Since the wire rope is hung on the sheave, the closure is always pulled up above the utility pole, and during maintenance wiring work, the slide base is hooked with the operation hook and pulled down lightly and stopped and held by the one-touch stopper mechanism In addition, the AO closure and the π-ONU closure on the slide base can be easily connected with cables near the ground and can be easily connected and connected, thereby improving work efficiency. That is, by moving a closure such as the AO closure or the π-ONU closure of the cable connection part to a position near the ground where the work is easy to perform, the hand connection on the ground without obstacles and other wiring work and equipment. The mounting work can be performed efficiently, and the work of checking the core wire can be facilitated. Further, after the wiring work is completed, if the stopper of the slide base is removed, the weight descends by its own weight, and the slide base moves upward along the telephone pole. It can be safely protected without human touch, all cables are wired to utility poles, non-skill construction can be performed with minimum tools, and reliable and safe one-person work can be performed without adversely affecting transmission characteristics.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described with reference to a closure device having a cable connection portion shown in FIGS. 1 to 5. In the closure device for assembling closures A and B having a cable connection portion to a utility pole C, a cable is shown. the cable entry pipe 1 with a guide hole 1 ₁ provided on the slide base 3 via the flexible Qi Bed 2, with vertically movable to fit the guide rail 5 with the slide base 3 of the utility pole attachment member 4 for example mounting band, wire Weight 8 movably inserted into guide pipe 7 via rope 6
Clasp which is attached to the upper part of a utility pole and is attached to the upper part of a telephone pole, and is provided with a sheave 9 for hooking the wire rope 6 thereon, and which holds and fixes a support wire of the cable D drawn from the cable drawing pipe 1 and the flexible tube 2. 10
And the closures A and B provided near the retaining fitting 10 as a closure device provided on the slide base 3.

The cable drawing pipe 1 has a cable introduction wrapper tube 11 at its tip, a flexible tube 2 connected and connected at its lower end, and a telephone pole mounting band 12 at a predetermined interval. Fixedly arranged along the axial direction. In this case, the cable introduction wrapper tube 11 is preferably provided with a cover member 21 for preventing bird damage and preventing rainfall intrusion on the upper surface. Further, as the slide base 3, a slide piece (not shown) that slides on the guide rail 5 using a plate material, and an operation hook E
The AO closure B and the π-ONU closure A are fixed, and the slide base 3 is hooked and pulled down by the operation hook E during maintenance wiring work, and is stopped and held by the one-touch stopper mechanism. AO closure on the slide base 3, π-ON
The cable can be easily drawn into the U-closure near the ground and the wiring work at hand can be easily performed. In particular, it is preferable that the slide base 3 is provided with a safety device of a one-touch stopper mechanism so that the stopper is easily released when the insertion guide is inserted.

The guide rail 5 is a C-shaped cross-section rail, and has a stopper release claw 14 and a stopper 15 at the upper end of the insertion guide as an insertion guide system for connecting a guide of the insertion rail to a fixed rail. The lower end has a stopper mechanism including a stopper pin 17 that can be inserted into the fitting hole 16, and is fixed to the electric pole C by an electric pole mounting member, for example, a mounting band 18 with a buckle.
That is, in consideration of workability, the insertion guide rail 5 having the stopper mechanism including the stopper releasing claw 14 and the stopper 15 at the upper end of the insertion guide and the stopper pin 17 which can be inserted into the fitting hole 16 at the lower end. One-touch detachable buckle band 18 for telephone pole installation
Is attached to the utility pole C.

The weight 8 is formed of a cylindrical body movably inserted into the guide pipe 7, a plurality of wire ropes 6 are inserted through a center hole, and a plurality of weights are provided. Considering that the slide base 3 is vertically suspended with respect to the telephone pole C so that the slide base 3 is always urged upward as a weight larger than the total weight of the members, the sliding force is reduced so that even a woman can reduce the sliding force. You can operate it. That is, the stopper pin 1 that can be inserted into the fitting hole 16 of the stopper mechanism of the slide base 3 after the wiring work for the cable connection portions to the closures A and B is completed.
When the weight 7 is removed and removed, the weight 8 descends along the guide pipe 7 by its own weight, and the slide base 3 is moved upward along the utility pole C via a stainless steel wire rope 6 having excellent strength and corrosion resistance. Can be moved and undone,
The closures A and B are raised to a high place so that they can be safely protected without being touched by a third party, and can be used as a telephone pole C in harmony with the cityscape.

To draw the outdoor line D into the cable of the cable drawing pipe 1 and the introduction hole ₁ via the wrapper tube 11 having a bird harm prevention structure for introducing the cable, a curvature (about 30 degrees or more) from a 360-degree direction. In order to draw in the outdoor line while securing the guide rail, a curved one with an opening is used so that the characteristics are not affected.
The slide base 3 that is slidably inserted into the base can be provided with a protective cover (not shown) that covers the outer periphery, as required, so that it can be opened and closed. The movable slide base 3 can be safely slid and fixed by a one-touch stopper mechanism (not shown), for example, a locking structure of a protrusion that can be protruded and retracted and a hole that fits into the protrusion. Maintenance may be facilitated, and secure fixed holding at the time of permanent installation (upper position) or at the time of work lowering (lower position) is ensured.

The closure device comprises an AO closure A and a π-ONU closure B,
The U-closure B is attached to the slide base 3 and is moved up and down with respect to the utility pole C, so that the hand connection on the ground without obstacles and other wiring work and installation work of devices can be efficiently performed. This makes it easier to check the cords.

By the operation of moving the slide base 3, the safety of the closure device on the utility pole can be improved, and the cable connection portion can be safely protected without touching by a third party.
All cables are also fixedly wired to the utility pole, so that non-skill construction can be performed with the minimum number of tools, and reliable and safe wiring work can be performed without adversely affecting transmission characteristics. In any case, it is considered that the closures A and B can be easily incorporated into the utility pole C, a sufficient working space can be secured during the work, and the work can be performed in a reasonable posture. .

Further, the AO closure A and the π-ONU
As the core wire case of the closure B, a plurality of connector holding portions for connection set inside when the opening / closing lid (not shown) is opened, and a cable core lead out from the connector housed in the connector holding portion. By using a substantially rectangular body having an extra length drawn around, that is, a core wire extra length storage portion that is wound and held in a loop shape, and having cable holding pieces arranged at predetermined intervals, transmission characteristics are adversely affected. Consideration is given so that the core wire can be wound and held in a smoothly curved loop shape so as not to extend.

The guide pipe 7 for storing the weight 8 is provided with a shock absorber mechanism (not shown) at the lower end to enhance safety. For example, even when the weight comes off due to an accident or the like, the weight is protected in the guide pipe 7 and there is no danger of falling off. A shock absorber mechanism is useful for absorbing shocks and is highly safe. It is preferable that the guide pipe 7 be pulled up from the ground by a rope using the above-mentioned sheave 9 and easily fixed by the rope. Further, the weight can be lifted by passing the wire rope 6 into the guide pipe 7 and pulling it up through the sheave 9, and after connecting with the slide base 5, the stopper of the guide pipe 7 can be attached and safely incorporated by one person. The wrapper tube 11 is provided with a cover member 21 with a gap therebetween to prevent rainfall intrusion and bird damage.
Considered to be able to withdraw from 60 degrees.

Further, the use of the flexible tube 2 allows the cable to flexibly follow up and down movements, to ensure the protection of the intermediate excess length with a degree of freedom, and the layout of the devices of the slide base 3 to be good. Easy wiring work can be realized.

[0017]

According to the present invention, there is provided a closure device for assembling a closure having a cable connecting portion to a utility pole, a cable lead-in pipe having a cable introduction hole is provided on a slide base via a flexible tube, and the slide base is attached to a utility pole mounting member. A guide rail having a sheave that is fitted to a guide rail with a wire and that is movably inserted into a guide pipe via a wire rope, is connected to and suspended from a weight that is inserted into the guide pipe, and is attached to an upper part of a utility pole to mount the wire rope. A cable near the ground by providing the slide base with a catch fitting for locking and supporting a support wire of the cable drawn in from the cable drawing pipe and the flexible tube, and a closure provided near the catch fitting. Easy work-in and wiring work In addition, the connection work of the core wire and the confirmation of the connection status can be easily performed near the ground, and the cable connection closure and the like can be safely incorporated in the utility pole to protect the closure device, In addition, the utility pole can be slimmed down in harmony with the cityscape, greatly improving the external environment, reducing work fatigue by safe work on the ground, and improving work efficiency. In addition to easy connection maintenance and expansion of connection parts with storage items, non-skill work can be performed without special tools, wiring can be arranged without affecting transmission characteristics, and storage can be organized and stored. Reliable assurance can be ensured, and the cable connection closure device can be moved onto a utility pole and wiring work can be performed in a place where there are no obstacles, so that the covering and housing work of the cable connection part can be performed extremely quickly. It can, helps improve the handling good work efficiency, connected fixed also be a closure device configured simple and inexpensive form of easily and safely performed.

[Brief description of the drawings]

FIGS. 1A and 1B show an embodiment of the present invention, wherein FIG. 1A is a perspective view of a used state, and FIG. 1B is a side view thereof.

FIGS. 2A and 2B are partial details of the closure device showing the example of FIG. 1, in which FIG. 2A is a side view in an attached state, and FIG. 2B is an enlarged perspective view thereof.

FIG. 3 is an enlarged front view of the slide base of the example of FIG. 2;

FIG. 4 is an enlarged perspective view of a guide rail used in the example of the present invention.

FIG. 5 is an enlarged vertical sectional view of a cable drawing pipe used in the example of the present invention.

[Explanation of symbols]

A, B Closure C Utility Pole D Cable 1 Cable Intake Pipe 1 ₁ Cable Inlet 2 Flexible Tube 3 Slide Base 4 Utility Pole Mounting Member 5 Guide Rail 6 Wire Rope 7 Guide Pipe 8 Weight 9 Sheave 10 Clasp Fitting 11 Wrapper Tube 12 Mounting Band 13 Insertion guide 17 Stopper pin 18 Mounting band

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tatsuro Oikawa 4-35-3 Yoyogi, Shibuya-ku, Tokyo Inside Japan Recom

Claims (5)

[Claims] 1. A closure device for assembling a closure provided with a cable connection portion to a utility pole, wherein a cable lead-in pipe having a cable introduction hole is provided on a slide base via a flexible tube, and the slide base is provided on a guide rail having a utility pole mounting member. And a sheave attached to a weight inserted movably into a guide pipe via a wire rope, and attached to the upper part of a utility pole to hang the wire rope.
A closure device, comprising: a slide base provided with a catch fitting for locking and supporting a support line of the cable drawn in from the cable drawing pipe and the flexible tube; and a closure provided near the catch fitting. 2. The cable pull-in pipe has a cable introduction wrapper tube at a tip thereof, a flexible tube connected and connected to a lower end thereof, and a utility pole mounting band provided at a predetermined interval, and an axial direction at an upper portion of the utility pole. The closure device according to claim 1, wherein the closure device is disposed along the closure. 3. The slide base according to claim 1, wherein the slide base includes a slide piece that slides on the guide rail, and an insertion guide that locks an operation hook, and the AO closure and the π-ONU closure are fixed. Item 3. The closure device according to item 1 or 2. 4. The guide rail is a C-shaped cross-section rail, provided with a stopper releasing claw and a stopper at an upper end of the rail, and a stopper mechanism including a stopper pin inserted at a lower end into a fitting hole. The closure device according to claim 1, 2 or 3, wherein 5. The weight has a weight greater than the total weight of each component disposed on the slide base, and is suspended vertically with respect to a utility pole such that the slide base is constantly urged upward. 5. The closure device according to claim 1, wherein the closure device is vertically disposed.