JP3547107B2 - Line device and line method - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a wire passage device used when a wire such as a rope, a communication cable, and a power cable is passed through a pipe or the like buried underground, and particularly to a pipe having an existing wire. The present invention relates to a line device and a line method suitable for laying a new line.
[0002]
[Prior art]
In recent years, when expanding communication cables or laying optical cables for optical communication due to the increase in communication demand, in order to save the time and expense of newly installing pipelines, the wires such as communication cables have already been installed. It is often the case that a new cable is additionally laid on the laid pipe. When laying a new cable in a pipeline containing an existing cable, the rope to be pulled is first passed through the pipeline, and then the new cable is connected to the rear end of the rope and the rope is pulled. Like that.
[0003]
In general, the following three methods are used as a wiring method for passing a rope through a conduit containing an existing cable.
(1) A method in which a pipe is pushed in, and a rope is connected to the end of the pipe to pass through.
(2) A method in which the inside of the pipeline is suctioned from the distal end side of the pipeline, and a guide tool to which a rope is connected is run by suction negative pressure to pass through the pipeline.
(3) A method in which air is blown into the pipeline from the rear end side of the pipeline, and a guide tool connected with a rope is pushed out toward the distal end side of the pipeline by the pressure to conduct the wire.
[0004]
By the way, as shown in FIG. 4, the pipeline 10 is generally arranged in a straight line in consideration of a wiring work or the like. The wire 12 such as a communication cable laid in the pipeline 10 is usually located on one side of the pipeline 10. Therefore, even if the existing line 12 is present in such a straight conduit 10, there is no great difficulty in performing the wiring by the above-described wiring methods (1) to (3).
[0005]
[Problems to be solved by the invention]
However, the pipeline 10 may have to be curved or meandered as shown in FIG. 5 depending on the surrounding conditions. When the pipeline 10 is curved in this way, since the existing wire 12 is pulled and laid, as shown in FIG. May be located. For this reason, when a line is passed through the conduit 10 having the curved portion using a conventional method, as shown in FIG. 6, the newly-installed wire 14 intersects with the existing wire 12 and becomes entangled. Article 14 may not be laid. If the new wire 14 entangled with the existing wire 12 is forcibly pulled, the existing wire 12 may be damaged. Therefore, conventionally, in a case where the newly-installed wire 14 is entangled with the existing wire 12, the wiring work is repeatedly performed until the new wire 14 is not accidentally entangled with the existing wire 12. For this reason, much time was required for additionally laying the new wire 14.
[0006]
In addition, in order to prevent entanglement with the existing wire 12, a wire body as shown in FIG. 7 has been developed. The wire body 20 is provided with wheels 24 at the lower part of the main body 22 so as to straddle the existing wire 12. A rod is mounted on the rear part of the main body 22 so as to be rotatable relative to the main body 22. Press to run. However, when passing through the curved portion of the conduit 10, the wire 20 rotates around the existing wire 12 in an attempt to pass through a wide space, and the new wire 14 becomes The problem of entanglement cannot be completely solved.
[0007]
The present invention has been made in order to solve the above-mentioned drawbacks of the conventional technology, and it is an object of the present invention to provide a wiring device and a wiring method capable of preventing a newly installed wire from being entangled with an existing wire. The purpose is.
[0008]
[Means for Solving the Problems]
In order to achieve the above object, a line device according to the present invention is a line device that moves in a pipeline while pulling a connected striated body, and is capable of opening and closing an existing line. A wire holder having an opening therein and capable of penetrating the existing wire therein, a weight provided at a lower portion of the wire holder, and a new wire connection formed on the wire holder; Section. The filament holder may be provided with wheels or a sled slider. The slider is desirably formed of a member having a small coefficient of friction, for example, a fluororesin such as polytetrafluoroethylene. Then, a pulling body that pulls the filament holder by the airflow generated in the pipe can be connected to the distal end of the filament holder. This towing body can be formed in a parachute shape using a deformable flexible material such as a polyethylene sheet or a nylon sheet. Further, the new wire connection portion can be provided at an arbitrary position of the wire holder, but is preferably formed at the upper end of the wire holder in order to facilitate the passage of a wire. Furthermore, the umbilical holder, and provided the guide member as to position the existing streak on the weight part side, the existing partial streak was Tsu songs such as curvature of the pipe, readily pass through the traction member You may be able to.
[0009]
In addition, the wire route method according to the present invention includes a wire holder having a pulling body serving as an airflow receiver and having a weight portion at a lower portion, holding an existing wire in a pipe so as to be relatively movable, and By moving the filament holder by generating an airflow in the road, the new filament connected to the filament holder is passed through.
[0010]
[Action]
In the present invention configured as described above, the weight portion is always provided below the existing wire by providing the weight portion at the lower portion of the wire holder through which the existing wire is passed. Can be kept constant at all times, and even if the conduit is curved or meandering, rotation of the filament holder can be prevented. For this reason, the wire such as a rope connected to the new wire connection portion of the wire holder or the cable to be additionally laid does not become entangled with the existing wire, and the new wire can be easily passed through. . In particular, if the new wire connection is provided at the upper end of the wire holder, the new wire connected to the new wire connection will not be below the existing wire, and the wire holder will be moved. Not only can it go smoothly, but it can also easily make the line. Then, when a slider for a wheel or a sled is provided on the filament holding member, the traction by the traction member (airflow receiver) can be easily performed. In addition, when the towing body is formed in a parachute shape by a deformable flexible material, the towing body can be easily moved without using a large-scale device by blowing air into the pipeline or sucking the inside of the pipeline. Not only is it possible, but it is also deformed in accordance with the bent state of the pipeline or existing line, so that it is possible to easily carry through the line.
[0011]
BEST MODE FOR CARRYING OUT THE INVENTION
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of a wiring device and a wiring method according to the present invention will be described in detail with reference to the accompanying drawings. Note that the same reference numerals are given to portions corresponding to the portions described in the above-described related art, and description thereof is omitted.
[0012]
FIG. 1 is a perspective view of a wiring device according to an embodiment of the present invention. In FIG. 1, the wire passing device 30 includes a filament holder 32 and a traction member 34 which is an airflow receiver connected to the distal end of the filament holder 32. The main body 33 of the filament holder 32 is formed in a cylindrical shape with, for example, metal or hard plastic. Furthermore, umbilical holder 32 is that you had weight portion 36 is provided inside the main body 33, together with the weight portion 36 is always set to be lower, new umbilical connection portion 38 provided at the rear upper end always It is located at the upper part of the conduit 10. Further, the wire holder 32 has wheels 40 for rolling on the inner surface of the pipeline 10 rotatably mounted on both sides of the lower portion of the main body 33 so that the inside of the pipeline 10 can be easily moved. I have.
[0013]
The main body 33 of the filament holder 32 has, for example, a half-split structure of an upper part 42 and a lower part 44 as shown in FIG. The side is an opening 48 for taking in and out the existing wire 12, and the existing wire 12 can be penetrated and arranged inside the wire holder 32 through this opening 48. A locking mechanism 50 such as a latch is provided between the upper portion 42 and the lower portion 44 on the opening 48 side so that the opening 48 can be held in a closed state.
[0014]
The towing body 34 is formed in a parachute shape by a deformable and flexible material such as a polyethylene sheet, a nylon sheet, or a so-called vinyl handbag, and is passed through a plurality of strings 42 or a hand-held portion of the handbag. It is connected to the front end of the wire holder 32. In order to prevent the towing body 34 from being below the existing wire 12, the connecting point of the towing body 34 to the wire holding body 32 is to avoid the lower end of the wire holding body 32 and to be connected to the upper end of the weight 36. It is desirable to be upward from the vicinity of the part. Then, as shown in FIG. 1, the pulling body 34 has such a size that the outer diameter when inflated by receiving the air flow (air flow) in the conduit 10 can contact or be close to the inner wall of the conduit 10. And is disposed above the existing linear shape 12. The traction body 34 is configured to supply air blown from a blower connected to the rear side (the right side in FIG. 1) of the pipeline 10 or airflow in the pipeline 10 generated by suction by a suction device connected to the distal end side of the pipeline 10. It moves to the distal end side of the pipeline 10 while pulling the filament holder 32.
[0015]
The operation of the embodiment configured as described above is as follows.
First, the locking mechanism 50 provided on the filament holder 32 is released, the opening 48 is opened, the existing filament 12 is penetrated inside the filament holder 32, and the opening 48 is closed. Then, a new wire 14 such as a new cable or a rope to be additionally laid is connected to a new wire connecting portion 38 provided at the rear end of the upper end of the wire holder 32. Thereafter, the wire holder 34 is arranged in the conduit 10 together with the traction member 34, and a blower provided on the rear side of the conduit 10 is driven to blow air into the conduit 10, The connected suction device is driven to suck and exhaust the inside of the pipeline 10. Accordingly, the pulling body 34 expands by receiving the airflow generated in the pipeline 10, and moves to the distal end side of the pipeline 10 while pulling the filament holder 32 on the airflow. Then, the wire holding body 32 is pulled by the pulling body 34, and the wheels 40 move while rolling on the inner surface of the pipeline 10, and pull the new wire 14 connected to the new wire connecting portion 38.
[0016]
At this time, the towing body 34 tends to pass through a large space in the pipeline 10 where the amount of air flowing is large. That is, since the towing body 34 passes on the opposite side of the pipeline 10 from the side where the existing filament 12 exists, the towing body 34 moves above the pipeline 10 when the pipeline 10 is provided substantially in a straight line. I do. When the conduit 10 is curved as shown in FIG. 5 and the existing wire 12 is located on the opposite side to the normal side, the towing body 34 starts the existing wire from the upper side of the pipeline 10. Try to cross below 12. However, since the wire holder 32 to which the towing body 34 is connected has a heavy weight portion 36 at the lower portion, the weight portion 36 is located below the existing wire 12 and The relative positional relationship is always kept constant and kept horizontal without rotating. For this reason, the towing body 34 passes above the existing wire 12 without crossing the existing wire 12. Accordingly, the new wire 14 connected to the upper rear end of the wire holder 32 always passes above the existing wire 12, even when the pipe 10 is curved or meandering. The new wire 14 can be routed without being entangled with the existing wire 12.
[0017]
Moreover, since the filament holder 32 of the embodiment has the wheels 46, the movement in the pipeline 10 is performed smoothly, and the power for pulling the filament holder 32 can be reduced. In addition, by using a parachute-like member that moves by airflow in the pipeline 10 as the pulling member 34, a large-scale device such as a pushing device is not required to move the filament holder 32, and a blower or the like is not required. The new linear 14 can be easily passed through the suction device. Moreover, the traction member 34 is moved, since that is formed by deformable flexible certain member, even if the conduit 10 and the existing filament 12 is not or meandering, the readily deformable conduit 10 In addition, even if the space above the pipe 10 is narrowed by the existing wire 12, the wire holder 32 can be easily passed and the wire holder 32 can be reliably pulled.
[0018]
In the above-described embodiment, the case where the filament holder 32 is towed by the puller 34 has been described. However, a pipe or the like is connected to the linear holder 32 so as to be relatively rotatable, and the pipe or the like is connected through the pipe or the like. Alternatively, the linear holder 32 may be propelled from the rear end side of the conduit 10. Further, a member (for example, a roller or a guide) for holding the existing wire 12 on the weight portion 36 side may be provided inside the wire holding body 32. In the above-described embodiment, the case where the new wire connection portion 38 is provided at the upper end of the wire holder 32 has been described. Can be provided. Further, in the above-described embodiment, the case where the linear holder 32 is cylindrical has been described. However, the shape of the linear holder 32 is not limited to this, and is oblong when viewed from the axial direction of the pipeline 10. Or an oval shape, an oval shape, a rice ball shape, or the like. However, it is desirable that the top of the linear holder 32 be formed so as to be close to the upper inner surface of the conduit 10 when the filament holder 32 is disposed in the conduit 10.
[0019]
FIG. 3 shows another embodiment of the filament holder. The filament holder 32 according to the present embodiment has a sled slider 50 provided on both lower sides of the main body 33 instead of the wheels 40. The slider 50 is made of, for example, a fluororesin such as polytetrafluoroethylene having a small coefficient of friction, so that the weight of the filament holder 32 is reduced, and the filament holder 32 slides easily in the pipeline 10. I can do it. Other configurations are substantially the same as those of the above-described embodiment. In the present embodiment configured as described above, the same effect as in the above-described embodiment can be obtained. Note that the slider 50 may be formed of metal.
[0020]
【The invention's effect】
As described above, according to the present invention, the weight portion is always provided below the existing wire by providing the weight portion at the lower portion of the wire holder through which the existing wire passes. The relative position of the filament holder to the existing filament is always kept constant, and rotation of the filament holder can be prevented even if the conduit is curved or meandering. For this reason, a new line such as a rope connected to the new line connection portion or a cable to be additionally laid does not become entangled with the existing line, and the new line can be easily passed through. In particular, if the new wire connection is provided at the upper end of the wire holder, the new wire connected to the new wire connection will not be below the existing wire, and the wire holder will be moved. Not only can it be performed smoothly, but also the lines can be easily connected. Then, when a slider for a wheel or a sled is provided on the wire holder, the towing by the towing body can be easily performed. In addition, when the towing body is formed in a parachute shape by a deformable flexible material, the towing body can be easily moved without using a large-scale device by blowing air into the pipeline or sucking the inside of the pipeline. Not only is it possible, but it is also deformed in accordance with the bent state of the pipeline or existing line, so that it is possible to easily carry through the line.
[Brief description of the drawings]
FIG. 1 is a perspective view of a wiring device according to an embodiment of the present invention.
FIG. 2 is a front view of the filament holder according to the embodiment.
FIG. 3 is a perspective view of a filament holder according to another embodiment.
FIG. 4 is an explanatory diagram of a normal pipeline.
FIG. 5 is an explanatory diagram of a state of an existing line in a pipeline having a curved portion.
FIG. 6 is a diagram showing a state of entanglement between an existing line and a new line in a curved portion when a new line is additionally laid in a pipeline in which an existing line exists by a conventional wiring method.
FIG. 7 is a diagram illustrating an example of a conventional line device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Pipe line 12 Existing wire 14 New wire 30 Passage device 32 Wire holder 34 Tow body 36 Weight 38 New wire connection 40 Wheel 48 Opening 50 Slider

Claims (6)

In a wiring device that moves in a pipeline while pulling a connected striated body, it has an openable and closable opening for inserting and removing an existing filament, and can be disposed inside by penetrating the existing filament. A wire connecting device comprising: a filament holder; a weight provided below the filament holder; and a new filament connection formed on the filament holder. The said line holder has a wheel or a sled-shaped slider, The wiring apparatus of Claim 1 characterized by the above-mentioned. The said new installation wire connection part was provided in the upper end part of the said wire holding body, The wiring apparatus of Claim 1 or 2 characterized by the above-mentioned. 4. The wire holding body according to claim 1, wherein a traction body that is moved by an air flow generated in the conduit and pulls the wire holding body is connected to a tip of the wire holding body. 5. 2. The wiring device according to item 1. The said towing body is formed in the shape of a parachute by the deformable flexible material, The wiring apparatus of Claim 4 characterized by the above-mentioned. A wire holder having a pulling body serving as an airflow receiver and having a weight portion at a lower portion holds an existing wire in a pipeline so as to be relatively movable, and generates an air flow in the pipeline to produce the wire. A wire passing method, characterized in that a new wire connected to the wire holder is passed through by moving the wire holder.

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