JP3946829B2 - Closure device - Google Patents

Description

[0001]
BACKGROUND 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 of a closure device for installing and installing an optical cable closure on a utility pole.
[0002]
[Prior art]
In general, in the field of telecommunications, a cable is terminated using an aerial closure, etc., in a connection part that draws in an incoming optical cable or power line and performs connection branch wiring, and one cable is another one or more cables. And a drop wire to each individual telephone subscriber is connected.
For some aerial closures, the cable must be pulled in by working at a high altitude by installing the closure at a high place using a utility pole to prevent third parties from touching it easily when pulling the outdoor line. .
[0003]
[Problems to be solved by the invention]
The conventional enclosure aerial closure that protects the cable connection is used for the mounting member of the utility pole or for the aerial cable wired to the utility pole. Also, each work such as repair or removal becomes a work at a high ground, the installation and wiring connection of equipment is not easy and workability is bad, and the fatigue of various work is not only high, but there is also a problem with safety Therefore, the handling 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 drawbacks, and can be used by safely incorporating a cable connection closure into a utility pole to achieve safe work on the ground and a reduction in work fatigue, as well as near the ground. The purpose is to provide a closure device that is easy to construct and inexpensive in configuration, which enables easy cable pull-in and hand-connection wiring work, improves work efficiency, and is safe for connection maintenance of each device. It is.
[0004]
[Means for Solving the Problems]
The present invention provides a closure device assembled to a utility pole a closure having a cable connection, the cable entry pipe with a cable entry hole through the flexible tube provided in the slide base, plug for locking the operating hook on the slide base A guide is provided, and the slide base is fitted to a guide rail having a power pole mounting member so as to be movable up and down, and a stopper release claw and a disengagement prevention tool are provided at the upper end of the guide rail, and an insertion insertion hole is provided at the lower end. A stopper mechanism comprising a stopper pin that can be inserted into the insertion hole is provided, and the slide base is connected to and suspended from a weight that is movably inserted into the guide pipe via a wire rope, and attached to the upper part of the utility pole. The cable drawing pipe 1 and the flexible tube are provided with a sheave to be hung. And anchoring bracket for securing locking the support wire of the cable drawn from the tube, it comprising a closure that Kin設this anchoring bracket to the slide base 3, cable entry and hand connection wiring work in the vicinity of the ground It is possible to improve the work efficiency.
[0005]
Further, in the present invention, the closure device is simply incorporated into the utility pole, and the cable lead-in pipe with the trumpet pipe for introducing the cable is suspended along the utility pole, so that the safety of the cable is secured and along the utility pole. It is moved up and down and fixed and held at an appropriate position to simplify safe ground work and improve work efficiency in wiring work and maintenance work.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
In embodiments of the present invention, the outdoor line from the cable introducing hole which is mounted on a utility pole performs pull 360 degree direction, the branch connected to the cable connecting portion of the closure which is provided on the slide base through a cable entry pipes and the flexible Chi-menu Bed It is. And this slide base was fitted to a guide rail with a power pole mounting member so as to be able to move up and down, connected and suspended to a weight movably inserted into the guide pipe via a wire rope, and attached to the top of the power pole Since the wire rope is hung on the sheave, the closure is always pulled up above the power pole, and when maintenance wiring work, the slide base insertion guide is hooked with the operation hook and pulled down lightly, and the one-touch stopper mechanism In order to improve work efficiency, the AO closure and π-ONU closure on the slide base can be easily pulled in and connected near the ground. That is, the closures such as the AO closure and the π-ONU closure of the cable connection part are moved to an easy-to-work position on the opening near the ground, and the hand connection on the ground free of obstacles and other wiring work and devices The attachment work can be performed efficiently, and the core wire confirmation work can be facilitated.
Further, after the wiring work is completed, if the stopper of the slide base is removed, the weight is lowered by its own weight, and the slide base is moved upward along the utility pole. It is safely protected without touching the user, all cables are wired to the power pole, non-skill construction with minimal tools is possible, and reliable and safe work can be done without adversely affecting the transmission characteristics.
[0007]
【Example】
The present invention will be described with reference to a closure device with a cable connection portion shown in FIGS. 1 to 5. In the closure device for assembling the closures A and B with the cable connection portion to the utility pole C, the cable introduction hole _11. together via a flexible Chi-menu Bed 2 cable pull pipe 1 a provided on the slide base 3 is fitted vertically movably the slide base 3 to the guide rail 5 with a utility pole attachment member 4 for example mounting band, wire rope coupled Tsushide 6 to the weight 8 that is movably inserted in the guide pipe 7 through, and includes a sheave 9 that hooked the wire rope 6 attached to the utility pole top, the cable entry pipe 1 and the flexible Ji Interview A retaining metal fitting 10 for locking and fixing a support line of the cable D drawn from the cable 2, and the retaining metal fitting 10 Closed closures A and B are provided as a closure device provided on the slide base 3.
[0008]
Wherein the cable entry pipe 1 has a cable entry for trumpet 11 at its distal end, a flexible Chi-menu Bed 2 connected connected to the lower end, there is provided with a utility pole mounting band 12 at predetermined intervals, utility pole top Fixedly deployed along the axial direction.
In this case, the cable introduction trumpet tube 11 is preferably provided with a cover member 21 for preventing bird damage and preventing rain intrusion on the upper surface.
The slide base 3 includes a slide piece (not shown) that slides on the guide rail 5 using a plate material, and an insertion guide 13 that engages the operation hook E. -When the ONU closure A is fixed, 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, and the AO closure on the slide base 3 and the π-ONU closure are grounded. It is possible to easily carry out cable drawing and local connection wiring work in the vicinity. In particular, the slide base 3 is provided with a safety device of a one-touch stopper mechanism, and it is preferable that the stopper is easily released when the operation hook E is inserted into the insertion guide 13 .
[0009]
The guide rail 5 is a C-shaped cross-section rail, and has a stopper release claw 14 and a disengagement prevention tool 15 at the upper end of the insertion guide, and is fitted at the lower end as an insertion guide system for connecting the guide of the insertion rail to the fixed rail. A stopper mechanism comprising a stopper pin 17 that can be inserted into the mounting hole 16 is provided, and is fixed to the utility pole C by a utility pole mounting member, for example, a buckle mounting band 18.
That in consideration of workability, with and a preventer 15 off the stopper release pawl 14 in the plug guide upper end, insertion guide rails example Bei the stopper mechanism composed of the stopper pin 17. that can be inserted into the fitting hole 16 at the lower end 5 is attached to the electric pole C with a band 18 with a buckle that can be attached and detached in one touch for attaching the electric pole.
[0010]
The weight 8 is formed of a cylindrical body that is movably inserted into the guide pipe 7, is provided with a plurality of wire ropes 6 inserted through the center hole, and includes a total of all the constituent members provided on the slide base 3. Considering that the weight of the slide base 3 is suspended in the vertical direction with respect to the utility pole C so that the slide base 3 is always urged upward, the slide base 3 can be operated by a woman with reduced sliding force. It is.
That is, after the wiring work to the closures A and B of the cable connecting portion is completed, if the stopper pin 17 that can be inserted into the fitting hole 16 of the stopper mechanism of the slide base 3 is removed and removed, the weight 8 is caused by its own weight and the guide pipe 7 The slide base 3 is moved down along the utility pole C through the stainless steel wire rope 6 which descends inward and has excellent strength and corrosion resistance, and can be returned to its original position. It can be used as a utility pole C that is raised to a high place and is safely protected without being touched by a third party, and in harmony with the cityscape.
[0011]
In order to draw the outdoor wire D into the cable of the cable lead-in pipe 1 and the lead-in hole ₁ through the trumpet pipe 11 having a bird damage prevention structure for introducing the cable, ensure a curvature (about 30 degrees or more) from the 360 degree direction. In order to draw in the outdoor line, an opening with a curved surface is used so that the characteristics are not hindered, and the slide base 3 that is slidably inserted into the guide rail 5 has an outer periphery if necessary. A protective cover (not shown) for covering can also be provided so as to be freely opened and closed.
The moving slide base 3 can be securely fixed by a one-touch stopper mechanism (not shown), for example, a locking structure of a freely projecting protrusion and a hole fitted therein, and connection and maintenance of each device. However, it is possible to ensure secure fixing at the time of permanent installation (upper position) or when the work is pulled down (lower position).
[0012]
The closure device includes an AO closure A and a π-ONU closure B. The π-ONU closure B is attached to the slide base 3 and moved vertically with respect to the utility pole C, so that there is no obstacle on the ground. As a result, it is possible to efficiently perform hand connection, other wiring work, and installation work of the devices, and the core wire checking work can be facilitated.
[0013]
The operation of moving the slide base 3 can increase the safety of the closure device on the utility pole, the cable connection part can be safely protected without being touched by a third party, and all the cables are fixedly wired to the utility pole. , Non-skill construction with minimal tools is possible, and reliable and safe wiring work can be performed without adversely affecting the transmission characteristics.
Note that it is considered that the closures A and B can be easily incorporated into the utility pole C in any case, can secure a sufficient work space at the time of work, and adopt a form that allows work in a comfortable posture. .
[0014]
Furthermore, the core cases of the AO closure A and the π-ONU closure B are housed in a plurality of connection connector holding portions that are set inside by opening an opening / closing lid (not shown), and the connector holding portions. Using a substantially rectangular body that is provided with a cable core extra length storage section that is routed, that is, wound around and held in a loop shape, is arranged at predetermined intervals. The cable holding piece is designed so that the core wire can be wound and held in a smoothly curved loop shape so that the transmission characteristics are not adversely affected.
[0015]
In addition, the storage guide pipe 7 for the weight 8 is provided with a shock absorber mechanism (not shown) at the lower end to enhance safety. For example, even if a weight comes off due to an accident or the like, it is protected in the guide pipe 7 and is not likely to fall outside. A shock absorber mechanism helps absorb shock and has high safety.
In order to lift the guide pipe 7, it is preferable to use the sheave 9 so that the guide pipe 7 can be easily lifted from the ground with a rope and fixed easily.
Further, the weight can be lifted by passing the wire rope 6 into the guide pipe 7 through the sheave 9, and after connecting with the slide base 5, the stopper of the guide pipe 7 can be mounted safely and assembled by one person.
Further, the trumpet tube 11 is provided with a cover member 21 gap, and has a structure for preventing rain intrusion and bird damage, and is designed to allow the outdoor line to be retracted from 360 degrees with a predetermined curvature. is there.
[0016]
In addition, the use of the flexible tube 2 allows the cable to flexibly follow up and down movements, can ensure the protection of the intermediate extra length with a certain degree of freedom, and the layout of the slide base 3 devices is good and easy wiring. Work can be realized.
[0017]
【The invention's effect】
The present invention relates to a closure device for assembling a closure having a cable connecting portion to a utility pole, a cable guide pipe having a cable introduction hole provided on a slide base via a flexible tube, and an insertion guide for locking an operation hook to the slide base The slide base is fitted to a guide rail having a utility pole mounting member so as to be movable up and down, a stopper release claw and a disengagement prevention tool are provided at the upper end of the guide rail, and an insertion insertion hole is provided at the lower end. It has a stopper mechanism consisting of a stopper pin that can be inserted into the hole, and further hangs the slide base on a weight that is movably inserted into the guide pipe via a wire rope, and is attached to the upper part of the utility pole and hooks the wire rope. A cable drawing pipe 1 and a flexible tube. And anchoring bracket locking fixing the support wire of the cable drawn from the tube, by providing a closure that Kin設this anchoring bracket to the slide base 3, cable entry and hand connection wiring work in the vicinity of the ground Can be easily performed, and the work of connecting the core wires and checking the connection status can be easily performed near the ground, and the cable connection closure etc. can be safely incorporated into the power pole, It is possible to slim down the utility pole in harmony with the urban landscape while protecting the closure device, greatly improving the appearance environment, and reducing the work fatigue level by working safely on the ground. Improves efficiency, makes it easy to connect and maintain each device and increase the number of connections with storage items, and allows non-skill work without the need for dedicated tools. In addition, the wiring can be arranged without affecting the transmission characteristics in the connection work, and the arrangement and storage can be ensured with high reliability, and the cable connection closure device can be moved over the power pole and wired in an area free of obstacles. The cover housing operation of the connecting portion can be performed extremely quickly, and it is possible to provide a closure device with a simple structure and an inexpensive configuration that is easy to handle, helps improve work efficiency, and can be connected and fixed easily and safely.
[Brief description of the drawings]
FIG. 1 shows an embodiment of the present invention, in which (a) is a perspective view of the usage state, and (b) is a side view thereof.
FIG. 2 is a detail of a part of the closure device showing the example of FIG. 1, in which (a) is a side view in an attached state, and (b) is an enlarged perspective view thereof.
FIG. 3 is an enlarged front view of the slide base in the example of FIG. 2;
FIG. 4 is an enlarged perspective view of a guide rail used in an example of the present invention.
FIG. 5 is an enlarged longitudinal sectional view of a cable lead-in pipe used in an example of the present invention.
[Explanation of symbols]
A, B Closure C Telephone pole D Cable 1 Cable lead-in pipe 1 ₁ Cable introduction hole 2 Flexible tube 3 Slide base 4 Telephone pole mounting member 5 Guide rail 6 Wire rope 7 Guide pipe 8 Weight 9 Sheave 10 Holding bracket 11 Trumpet pipe 12 Mounting band 13 Insertion guide
14 Stopper release claw
15 Detachment prevention tool
16 Insertion hole 17 Stopper pin 18 Mounting band

Claims (2)

Closure A having a cable connecting portion, the closure device for assembling the B a telephone pole C, provided the cable entry pipe 1 with a cable entry hole 1 ₁ to the slide base 3 via the flexible Chi-menu Bed 2, the slide base 3 The slide base 3 is fitted to the guide rail 5 with the utility pole mounting member 4 so as to be movable up and down, and a stopper release claw 14 is provided at the upper end of the guide rail 5. A stopper mechanism including a fitting insertion hole 16 at the lower end and a stopper pin 17 that can be inserted into the fitting insertion hole 16; and the slide base 3 is inserted into the guide pipe 7 via the wire rope 6. The suspension is connected to and suspended from a weight 8 that is movably inserted in the cable, and is attached to the upper part of the utility pole and is used to hang the wire rope 6. Comprising a chromatography Bed 9, the anchor fitting 10 is locked and fixed to the support wire of the cable D drawn from the cable entry pipe 1 and the flexible Chi-menu Bed 2, closure A was Kin設this anchoring bracket 10, B And the slide base 3 is provided with a closure device. The weight 8 has a weight larger than the total weight of the components arranged on the slide base 3, and is suspended vertically with respect to the utility pole C so that the slide base 3 is always urged upward. The closure device according to claim 1, wherein the closure device is provided.

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