JP2000134750A - Rodding device for wiring and piping - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rodding device for wiring, capable of wiring which avoids being entangled with existing cables by mounting so as to move on the existing cables. SOLUTION: This rodding device 20 for wiring guide is used to draw a fishing line 14 from one end of a duct line 10 to the other end thereof. The rodding device 20 for wiring consists of the first guide body 22, the second guide body 26 via a piano wire 24 to the first guide body 22, and an air flow acceptor 28 disposed between the first guide body 22 and the second guide body 26. The first guide body 22 and the second guide body 26 are movable along the inside of the duct line 10. The air flow acceptor 28 receives air flow generated in the duct line 10 to generate a driving force. The leading device 20 for wiring, therefore moves on an existing cable 12 by the action of the first guide body 22 and the second guide body 26, and it is possible to draw the wire so as not to entangle the fishing line 14 with the existing cable 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a leading device for a wire used when a wire is passed from one end to the other end of a pipe, and a wire from one end to the other end of the pipe using this device. In particular, the present invention relates to a conduit method for passing air through, particularly an air flow receiver for receiving an air flow generated in the pipeline and a guide body, which can be moved on the existing cable and which does not entangle with the existing cable. The present invention relates to a pipe passing method capable of passing a wire.

[0002]

2. Description of the Related Art As optical fiber cables are being renewed year by year due to an increase in traffic, as a method of suppressing an increase in construction costs, a large number of new cables are laid together with existing cables in one conduit. The method is making effective use of the existing underground pipes. When such an existing underground pipeline is used, a communication cable is already laid in the existing underground pipeline.

In such existing underground pipes, according to the conventional pipe-laying method, first, a wire material such as tex and a parachute are connected to the wire pulling means, and the wire pulling means is connected to the pipe. Attached at one end, for example, an air flow is formed in the conduit, and the traction means for wire is moved in the conduit by the air flow, and the traction means for wire is discharged from the other end of the conduit. Let the wire pass through.

[0004] Then, in the pipe-laying method, a cable laying rope is tied to the wire-laying material, the wire-laying material is pulled, and the cable-laying rope is passed through the pipeline. Finally, a new communication cable is passed through the cable-laying rope. As a result, the cable for laying the cable is pulled to lay a new communication cable in the conduit.

[0005]

In such a pipe-laying method using a pulling means for a wire, it is considerably difficult to wire the cable without being entangled with the existing cable. Also, when passing through the above conventional pipe method,
When a cable, a cable laying rope, or a new cable is entangled with an existing cable, there is a problem that it is necessary to tow with great force. Furthermore, according to the above-mentioned conventional method, when a cable laying rope or a new cable is entangled with an existing cable, if the cable laying rope or the new cable is pulled with excessive traction, the existing cable is damaged. was there.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional problems, and has as its object to provide a leading device for a wire which can be moved on an existing cable and can be routed so as not to be entangled with the existing cable. . A further object of the present invention is to provide a pipe passing method that enables a wire to be routed without being entangled with an existing cable by using the leading device for a wire.

[0007]

According to a first aspect of the present invention, there is provided a lead-through device for a wire used when a wire is passed from one end to the other end of a pipe. A first guide body movable along the pipeline, and a flexible member movable along the pipeline and provided on the first guide body. And a driving force generated by receiving an airflow generated in the conduit to the first guide body and the second guide body. And an air flow receiver to be provided.

[0008] In the invention described in claim 2, in claim 1, at least one of the first guide body and the second guide body is formed in a cylindrical body or a polygonal body having a shape of pentagon or more, and the cylindrical body is used. A cylindrical roller is provided at the bottom of a body or a polygon, and contact rollers are provided on both upper side surfaces of the cylinder or the polygon.

According to a third aspect of the present invention, in the first aspect, the air flow receiver is formed by forming a parachute body in a pyramid shape with a skeleton and a cloth receiving an air flow, and The parachute body is fixed to the first guide body, and the periphery of the bottom surface of the conical parachute body is fixed to the second guide body via a flexible wire. . According to a fourth aspect of the present invention, in the first to third aspects, the flexible member is a piano wire.

In order to achieve the second object, a pipe passing method according to a fifth aspect of the present invention is a pipe passing method in which a wire is passed from one end to the other end of a pipeline, wherein the wire is passed through the pipe. A first guide body and a second guide body movable along a pipe.
Connected to a leading device for a wire constructed by arranging an air flow receptor between the guide member and the guide member, the leading device for a wire is mounted in a pipeline, and pressure or pressure is applied from one end of the pipeline. The driving force generated by sucking air from the other end of the conduit and receiving the airflow generated in the conduit by the airflow receiver is the first driving force.
The guide member and the second guide member are moved to move the leading device for wire to pass the wire through the conduit.

[0011]

According to the structure of the first aspect of the present invention, the second
Is connected to the guide body, and the first guide body of the lead apparatus for the wire is inserted into the pipeline from the entrance of the pipeline with the first guide body as a head. Then, pressure is applied from a pipe inlet by a blower or the like, or suction is performed from a pipe outlet by a vacuum cleaner or the like. by this,
In the pipeline, an airflow is generated from the pipeline inlet side to the pipeline outlet side. Then, the airflow receiver of the leading device for a wire receives the airflow to generate a driving force, and applies the driving force to the first guide body and the second guide body. Then, the leading device for the line moves in the pipeline from the pipeline entrance side to the pipeline exit side. At this time, the first guide body and the second guide body move on the existing cable in the pipeline along the inner circumference of the pipeline, so that the wire can pass through the existing cable without being entangled with the existing cable. it can. Also, the first
Since the guide body and the second guide body are connected by a flexible member, the first guide body and the second guide body bend freely even if the pipe is bent, and Can move along the bend.

Further, in the structure according to the second aspect, since the first guide body or the second guide body is formed in a cylindrical body, the first guide body or the second guide body can easily move along the inner circumference in the pipeline. Can be. Further, since the cylindrical roller is provided at the bottom of the cylindrical body, the cylindrical roller can be moved on the existing cable without friction, and the existing cable is not damaged.
Furthermore, since contact rollers are provided on both upper side surfaces of the cylindrical body, the cylindrical body can move without friction even when it comes into contact with the inner periphery of the pipeline.

Further, in the configuration according to the third aspect, the airflow receiver forms a parachute body with a skeleton and a fabric receiving the airflow, and the parachute body is always opened by the skeleton. From being in a state,
The air flow can always be reliably received, and in addition, since the skeleton and the fabric are deformed, the shape of the parachute body is deformed along the shape of the inner circumference of the pipeline, and passes smoothly through the pipeline. be able to. Further, since the propulsion force of the parachute body can be transmitted to each of the first guide body and the second guide body, there is no bias in the propulsion force, and the parachute body can move smoothly.

According to the fourth aspect of the present invention, since the flexible member is made of a piano wire, the flexible member has a predetermined rigidity and can maintain a predetermined shape. The line can be bent and restored to the current shape or the like. According to the configuration according to the fifth aspect of the present invention, the wire member is connected to a wire lead device, and the wire lead device is mounted in a pipeline. Then, an air flow is generated in the pipe. Thereby, the airflow receiver generates a driving force by receiving the airflow in the pipeline, and applies the driving force to the first guide body and the second guide body. Then, the lead wire device moves on the existing cable in the pipeline, so that the wire material can be passed from one end to the other end of the pipeline.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. 1 to 5 are diagrams for explaining an embodiment according to the present invention. Here, FIG. 1 is a perspective view showing the lead device for the same wire, FIG. 2 is a plan view showing the same device, FIG. 3 is a front view showing the same device, FIG. 4 is a rear view showing the same device, and FIG. It is a bottom view showing the same device.

In FIG. 1, a plurality of existing cables 12, 12,... The conduit 10 is provided with a lead device 20 for connecting a wire, which is connected with a tex 14 as a wire material. As shown in FIG. 1 to FIG. 5, the lead device 20
2, a second guide body 26 connected to the first guide body 22 via a piano wire 24 as a flexible member, and between the first guide body 22 and the second guide body 26. And the airflow receiver 28 provided in the first position. The first guide body 22 is movable along the inner circumference of the pipeline 10. The second guide body 26 is connected to the pipe 1
The first guide body 22 is connected to the first guide body 22 via a piano wire 24. At a rear end portion of the second guide body 26, a connecting portion 30 to which the grease 14 can be connected is provided. Air flow receiver 28
Generates a propulsion force by receiving an air flow generated inside the conduit 10 and applies the propulsion force to the first guide body 22 and the second guide body 26, respectively. You can do it.

More specifically, the first guide body 22
Is made of a lightweight material such as a plastic material or an aluminum material, and is formed in a cylindrical body 32 having a predetermined thickness.
A cylindrical roller 36 formed of a material such as aluminum is provided on the bottom 34 of the column 32. Further, on both side surfaces of the upper portion 38 of the cylindrical body 32,
For example, contact rollers 40 formed of a material such as aluminum are provided.

Further, since the second guide member 26 has the same structure as the first guide member 22, portions corresponding to those described for the first guide member 22 have the same reference numerals. And description thereof is omitted. The connecting portion 30 is provided on the cylindrical body 32 of the second guide body 26 via a return mechanism (not shown) in a direction opposite to the mounting portion 42 of the airflow receiver 28 as described above. Have been.

The first guide body 22 and the second guide body 26 are connected at a predetermined interval and by, for example, two piano wires 24. In addition, the above-described airflow receiver 28 is a skeleton 4 made of, for example, a piano wire.
A parachute body 48 is formed in a conical shape with the base material 4 and a cloth 46 formed of, for example, synthetic fiber cloth which receives an air flow. The top 50 of the conical parachute 48 is fixed to the first guide 22. Further, the periphery 52 on the bottom side of the conical parachute body 48 is formed by a plurality of kite strings
Are fixed to the mounting portion 42 of the second guide body 26 via 4,. For this reason, the parachute body 48 easily spreads when it receives wind from the rear. In addition,
A flexible wire such as a piano wire may be used instead of the kite string 54.

The operation of the embodiment configured as described above is as follows. First, the grease 14 as a wire is connected to the contact portion 30 of the second guide body 26. Next, the lead device 20 is inserted into the conduit 10 from the entrance of the conduit 10 with the first guide body 22 at the head.

Next, as shown in FIG. 6, after the pressurizing pipe 18 of the blower 16 is connected to the inlet of the pipe 10, the blower 1
6 is operated to apply pressure from the inlet side of the pipeline 10. At this time, the pressurizing pipe 18 is provided with a mechanism for continuously feeding out the tex 14. Thereby, the pipeline 10
Inside, an airflow is generated from the pipe inlet side to the pipe outlet side.

Then, the parachute body 48 of the airflow receiver 28 of the leading device 20 for the line receives the airflow and generates a propulsion force (driving force). The propulsive force generated by the parachute body 48 is applied to the first guide body 22 via the top 50 of the parachute body 48 and to the second guide body 36 via the piano wire 54.

As a result, the leading device 20 for the line moves on the existing cable 12 from the entrance side of the pipeline to the exit side of the pipeline within the pipeline 10. At this time, the first guide body 22 and the second guide body 26 of the leading device 20 for the line pass through the existing cable 12 inside the pipeline 10 in the pipeline 1.
Move along the inner circumference of 0. At that time, the existing cable 1
The first guide body 22 and the second guide body 26
The cylindrical roller 36 provided on the bottom 34 of the pipe 10 rolls in contact, and the contact rollers 40, 40 move in contact with the inner periphery of the pipeline 10.

Then, when the lead device 20 moves along the inside of the conduit 10 and the lead device 20 exits the conduit exit of the conduit 10, the conduit 10 and the lead device for the conduit move. 20 is opened, so that the leading device 20
Is safe without popping out. Accordingly, the wires 14, which are the wire members, can be routed without being entangled with the existing cable 12. Further, since the first guide body 22 and the airflow receptor 28 are connected by the piano wire 24, even if the pipe 10 is bent, the first guide body 22
And the second guide body 26 are freely bent, and the leading device 20 for the wire is free to move along the bend inside the conduit 10.

Furthermore, since the first guide body 22 and the second guide body 26 are basically formed in the cylindrical body 32, they can easily move along the inner periphery of the conduit 10. In addition, since the first guide body 22 and the second guide body 26 are provided with the cylindrical roller 36 at the bottom 34 of the cylindrical body 32, the first guide body 22 and the second guide body 26 can move on the existing cable 12 without friction and damage the existing cable 12. There is no. Further, the first guide body 22 and the second guide body 26 are connected to the upper part 3 of the cylindrical body 32.
Since the contact rollers 40 are provided on both side surfaces of the pipe 8, the contact rollers 40 can move without friction even when they come into contact with the inner periphery of the pipeline 10.

On the other hand, in the air flow receiver 28, a parachute body 48 is formed in a conical shape by the frame 44 and the cloth 46, and the parachute body 48 is always opened by the frame 44. The flow can always be received by the parachute body 48 and can be reliably received. In addition, the airflow receiver 28
Since the skeleton 44 and the second guide body 26 can be easily deformed according to the cross-sectional shape of the pipeline 10, the inside of the pipeline 10 can be smoothly passed.

Furthermore, since the air flow receiver 28 can transmit the propulsion force of the parachute body 48 to the first guide body 22 and the second guide body 26 on average, there is no bias in the propulsion force. Smooth movement can be realized.
Further, the first guide body 22 and the second guide body 26 are connected by a piano wire 24, and a parachute body 48 is provided.
Is connected to the mounting portion 42 via the kite string 54, so that the predetermined shape can be maintained with a certain rigidity, and when a bending force of a certain degree or more is applied, the piano The line 24 can be bent and restored to the current shape or the like.

In the above embodiment, the first guide body 22
And the second guide body 26 is composed of the cylindrical body 32,
It may be configured as an angular polygon. Further, in the above embodiment, the parachute body 48 of the airflow receiver 28 is formed in a conical shape, but the parachute body may be formed as a polygonal pyramid having a pentagonal shape or more.

Further, in the above embodiment, the first guide member 22 and the second guide member 26 are connected to the two piano wires 2.
Although the connection is made at 4, the connection may be made with, for example, a flexible plate. The point is that the first guide body 22 and the second guide body 26 may be freely bent. In addition, in the above-described embodiment, in order to generate an air flow in the pipe 10, the air is pressurized from the pipe inlet side of the pipe 10 of the blower 16. Alternatively, the suction may be performed.

[0030]

As described above, according to the first aspect of the present invention, the first guide member and the second guide member can move along the inner circumference of the existing cable in the pipeline. In other words, the wire can be routed without being entangled with the existing cable. According to the first aspect of the present invention, since the first guide body and the second guide body are connected by the flexible member, the first guide body and the second guide body can be connected to each other even if the pipe is bent. The second guide body can freely bend and move along the bend in the pipeline.

Furthermore, according to the first aspect of the present invention, since the air flow receiver follows the shape of the inner circumference of the pipe, the air flow can always be reliably received, and the thrust is reliably obtained. be able to. On the other hand, according to the fifth aspect of the present invention, as compared with the conventional wiring method, the leading device for the wiring is provided in the pipe in the first way.
It is only necessary to insert the guide body with the guide body as a head and to generate an air flow in the pipeline, so that the construction time is shortened and simplified. According to the fifth aspect of the present invention, when pressurization is performed from the pipeline inlet side to generate airflow in the pipeline, the cost of the apparatus can be reduced, and the economic effect is large.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a leading device for a wire according to an embodiment of the present invention.

FIG. 2 is a plan view showing the lead device for the same line.

FIG. 3 is a front view showing the leading device for a traffic line.

FIG. 4 is a rear view showing the leading device for the same line.

FIG. 5 is a bottom view showing the leading device for a traffic line.

FIG. 6 is a diagram for explaining a use state of the lead device for a traffic line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Pipe line 12 Existing cable 14 Tegus (wire material) 16 Blower 20 Lead device for communication 22 First guide body 24 Piano wire (flexible member) 26 Second guide body 28 Air flow receptor 32 Cylindrical body 36 Cylinder Roller 40 contact roller 44 skeleton 46 fabric 54 kite thread

Claims (5)

[Claims] 1. A leading device for a wire used when a wire is passed from one end to the other end of a pipe, a first guide body movable along the inside of the pipe, and the pipe A second guide body that is movable along the path and is connected to the first guide body via a flexible member and is capable of connecting the wire, and an air flow generated in the pipe line. A lead device for a wire, comprising: an airflow receiver that applies a driving force generated upon reception to the first guide member and the second guide member. 2. At least one of the first guide body and the second guide body is formed in a cylindrical body or a pentagonal or more polygonal body, and a cylindrical roller is provided at the bottom of the cylindrical body or the polygonal body. 2. The lead device according to claim 1, wherein contact rollers are provided on both upper side surfaces of the cylindrical body or the polygonal body, respectively. 3. 3. The airflow receiver comprises a parachute parachute formed by a skeleton and a fabric receiving an airflow, and a top of the pyramid parachute is formed by the first guide. 2. The lead device according to claim 1, wherein the guide member is fixed to a body, and a periphery of a bottom surface side of the conical parachute body is fixed to the second guide body via a flexible wire. . 4. The lead-through device for a wire according to claim 1, wherein the flexible member is a piano wire. 5. A pipe passing method for passing a wire from one end to the other end of a pipe, wherein the first guide and the second guide are configured to be able to move the wire along the inside of the pipe. Connected to a leading device for a wire constructed by arranging an air flow receptor between the device and the leading device for a wire, which is mounted in a pipeline, and pressurized from one end of the pipeline or the pipeline. And a driving force generated by receiving the air flow generated in the conduit by the air flow receiver is applied to the first guide body and the second guide body, and A pipe passing method comprising moving a leading device to pass a wire through a pipe.