JP7126591B1 - Cable laying system - Google Patents

Abstract

A cable laying system capable of stably laying a cable over a long distance is provided. A cable laying system includes a self-propelled cable drawing machine 100 that draws a cable while running on a guide rope 18, and a floor fixed along the traveling route of the self-propelled cable drawing machine. The self-propelled cable drawing machine is provided with a guide rope holding hardware 200 that is fixed to the single tube 19 and holds the guide rope, and the self-propelled cable drawing machine includes traveling rollers 2A and 2B that move on the guide rope, and on the guide rope holding hardware The guide rope holding hardware is provided with a guide rope receiving groove 10 for holding the guide rope and a jumping roller groove 13 serving as a passage for the jumping roller. When the self-propelled cable drawing machine gets over the guide rope holding hardware, the jumping roller runs in the jumping roller groove. [Selection drawing] Fig. 10

Description

The present disclosure relates to a cable laying system for laying cables.

2. Description of the Related Art Conventionally, in a cable processing room or the like of a plant such as a power plant, cables for connecting various devices are laid. Since it is very difficult for people to come and go in a narrow space such as a cable processing room, it takes a great deal of time and effort to do the work only by people. For this reason, the development of a self-propelled cable drawing machine that pulls a cable while traveling on a guide rope stretched along a cable laying location is underway.

The self-propelled cable drawing machine described in Patent Document 1 runs on a guide rope fixed at two points on both ends by two fittings while holding a cable, and runs a specific distance from the starting point. The cable is laid by opening the cable at .

JP-A-60-62808

However, with the technique of Patent Document 1, the guide ropes are fixed only at two locations, so the guide ropes cannot be firmly fixed. In addition, since a sufficient work environment cannot be secured in a narrow space such as a cable processing room, it is difficult to firmly fix the guide rope using an anchor bolt or the like. For this reason, if the guide rope becomes long, the guide rope tends to bend, which makes it difficult to stably lay the cable over a long distance.

The present disclosure has been made in view of the above, and an object thereof is to obtain a cable laying system capable of stably laying a cable over a long distance.

In order to solve the above-described problems and achieve the object, the cable laying system of the present disclosure extends the cable by pulling the cable while traveling on a guide rope stretched along the cable laying location. a self-propelled cable drawing machine, a single pipe fixed to the floor along the traveling route of the self-propelled cable drawing machine, a guide rope holding part fixed to the single pipe and holding the guide rope, Prepare. The self-propelled cable drawing machine consists of a traveling roller that moves on the guide rope by rotating on it, and a jumping roller that is attached to the traveling roller and moves on the guide rope holder by rotating together with the traveling roller. and have The guide rope holding portion is provided with a guide rope receiving groove for holding the guide rope and a jumping roller groove serving as a passage for the jumping roller. When the self-propelled cable drawing machine gets over the guide rope holding portion, the jumping roller runs in the jumping roller groove.

The cable laying system according to the present disclosure has the effect of being able to stably lay cables over long distances.

1 is a perspective view showing the configuration of a self-propelled cable drawing machine according to an embodiment; 1 is a side view showing the configuration of a self-propelled cable drawing machine according to an embodiment; FIG. 2 is a rear view showing the configuration of the self-propelled cable drawing machine according to the embodiment; A perspective view showing the configuration of the guide rope holding hardware according to the embodiment. A side view showing the configuration of the guide rope holding hardware according to the embodiment. FIG. 2 is a perspective view showing the configuration of tapered rollers according to the embodiment; FIG. 4 is a diagram showing a state in which the first step and the second step are completed in the cable laying system according to the embodiment; FIG. 4 is a perspective view showing guide rope holding metal fittings and tapered rollers attached to a single pipe in the cable laying system according to the embodiment; FIG. 4 is a side view showing the guide rope holding hardware and tapered rollers attached to the single pipe in the cable laying system according to the embodiment; FIG. 2 is a perspective view of the self-propelled cable drawing machine and the guide rope holding hardware when the self-propelled cable drawing machine according to the embodiment gets over the guide rope holding hardware; FIG. 2 is a side view of the self-propelled cable drawing machine and the guide rope holding hardware when the self-propelled cable drawing machine according to the embodiment gets over the guide rope holding hardware; FIG. 2 is a front view of the cable laying system when the self-propelled cable drawing machine according to the embodiment is pulling the cable;

An embodiment of a cable laying system according to the present disclosure will be described in detail below with reference to the drawings.

Embodiment.
The cable laying system has a self-propelled cable drawing machine 100, which will be described later, a guide rope holding hardware 200, which will be described later, a tapered roller 300, which will be described later, a guide rope 18, which will be described later, and a single pipe 19, which will be described later. ing. The cable laying system has single tubes 19 supporting guide ropes 18, each tube 19 having a guide rope holding hardware 200 and a tapered roller 300 disposed thereon. A configuration example of the components of the cable laying system will be described below.

FIG. 1 is a perspective view showing the configuration of a self-propelled cable drawing machine according to an embodiment. FIG. 2 is a side view showing the configuration of the self-propelled cable drawing machine according to the embodiment. FIG. 3 is a rear view of the configuration of the self-propelled cable drawing machine according to the embodiment.

The self-propelled cable drawing machine 100 is a device that lays a cable 22 by pulling the cable 22 described later while traveling on a guide rope 18 described later. In the following description, the two axes in the horizontal plane that are orthogonal to each other are the X axis and the Y axis. A vertical axis orthogonal to the X-axis and the Y-axis is defined as the Z-axis.

It is also assumed that the guide rope 18 along which the self-propelled cable drawing machine 100 travels is stretched in a direction parallel to the Y-axis direction. Therefore, the self-propelled cable drawing machine 100 moves along the guide rope 18 in a direction parallel to the Y-axis direction. Further, the moving direction of the self-propelled cable drawing machine 100 when laying the cable 22 is the positive Y-axis direction, and the reverse traveling direction after the self-propelled cable drawing machine 100 releases the cable 22 is the negative direction. It is the Y-axis direction. That is, the self-propelled cable drawing machine 100 advances in the positive Y-axis direction on the outward trip and advances in the negative Y-axis direction on the return trip. The positive Z-axis direction is the upward direction, and the negative Z-axis direction is the downward direction.

The self-propelled cable drawing machine 100 includes a frame 1, running rollers 2A and 2B, riding rollers 3A and 3B, motors 4A and 4B, drop prevention arms 5A and 5B, a twisting jig 6, A running direction selection switch 7 and a power switch 8 are provided. The self-propelled cable drawing machine 100 includes running rollers 2A and 2B, jumping rollers 3A and 3B, motors 4A and 4B, drop prevention arms 5A and 5B, a twisting jig 6, a running direction selection switch 7, and a power switch. 8 is attached to the frame 1 .

The frame 1 is made of aluminum, for example, and the running rollers 2A and 2B are made of rubber, for example. The running rollers 2A and 2B have the same shape and size. The running rollers 2A and 2B rotate on the guide rope 18 to move the self-propelled cable drawing machine 100 in the Y-axis direction. The self-propelled cable drawing machine 100 has the traveling rollers 2A and 2B placed on the guide rope 18 when traveling. The running rollers 2A and 2B have their rotating shafts oriented parallel to the X-axis direction. The running rollers 2A and 2B are arranged at the same position in the Z-axis direction and the X-axis direction, but at different positions in the Y-axis direction. That is, the running rollers 2A and 2B are arranged side by side in the Y-axis direction.

The running roller 2A is arranged in the plus Y-axis direction from the running roller 2B. Therefore, when the self-propelled cable drawing machine 100 moves in the plus Y-axis direction, the traveling roller 2A reaches a specific position on the guide rope 18, and then the traveling roller 2B reaches a specific position.

The climbing rollers 3A and 3B are rollers for getting over a guide rope holding hardware 200 which will be described later. The jump rollers 3A and 3B have the same shape and size. The jump roller 3A is attached to the running roller 2A and rotates together with the running roller 2A. The jumping roller 3B is attached to the running roller 2B and rotates together with the running roller 2B. The rotation axis of the riding roller 3A is the same as that of the running roller 2A, and the rotation axis of the riding roller 3B is the same as that of the running roller 2B. The jumping roller 3A has a larger diameter than the running roller 2A, and the riding roller 3B has a larger diameter than the running roller 2B. The motor 4A rotates the running roller 2A and the jumping roller 3A, and the motor 4B rotates the running roller 2B and the jumping roller 3B.

The fall prevention arms 5A and 5B are arms that prevent the self-propelled cable drawing machine 100 from falling from the guide rope 18. As shown in FIG. The fall prevention arms 5A and 5B are arranged outside the running rollers 2A and 2B in the Y-axis direction. That is, the fall prevention arm 5A is arranged in the plus Y-axis direction from the running roller 2A, and the fall prevention arm 5B is arranged in the minus Y-axis direction from the running roller 2B.

The fall prevention arms 5A and 5B are formed by joining a rod-shaped member extending in the plus X-axis direction and a rod-shaped member extending in the minus Z-axis direction. One end of the rod-shaped member extending in the plus X-axis direction of the fall prevention arms 5A and 5B is joined to the frame 1, and the other end is one end of the rod-shaped member extending in the minus Z-axis direction. joined to the part. A rod-shaped member extending in the plus X-axis direction extends in the plus X-axis direction further than the running rollers 2A, 2B and the jumping rollers 3A, 3B. Further, the rod-like member extending in the minus Z-axis direction extends further in the minus Z-axis direction than the running rollers 2A, 2B and the jumping rollers 3A, 3B.

The untwisting jig 6 is a jig for attaching the cable 22 to the self-propelled cable drawing machine 100 via the untwisting metal fitting 24 and the armature 21 described later. The running direction selection switch 7 is a switch for switching the running direction of the self-propelled cable drawing machine 100 . The power switch 8 is a switch for switching the power of the self-propelled cable drawing machine 100 on or off.

The number of running rollers provided in the self-propelled cable drawing machine 100 may be one or three or more. Also in this case, the self-propelled cable drawing machine 100 has the same number of jump rollers and motors as the running rollers.

In the following description, the running rollers 2A and 2B may be referred to as running rollers 2 when there is no need to distinguish between the running rollers 2A and 2B. Further, when there is no need to distinguish between the jump rollers 3A and 3B, the jump rollers 3A and 3B may be referred to as the jump roller 3 in some cases.

Next, the guide rope holding hardware 200 that holds the guide rope 18 that serves as the running path of the self-propelled cable drawing machine 100 will be described. FIG. 4 is a perspective view showing the configuration of the guide rope holding hardware according to the embodiment. FIG. 5 is a side view showing the configuration of the guide rope holding hardware according to the embodiment.

The guide rope holding hardware 200, which is a guide rope holding portion, prevents the guide rope 18 from bending due to the weight of the self-propelled cable drawing machine 100 and the self-weight of the guide rope 18. hold the guide rope 18 so as not to hinder the running of the The guide rope holding hardware 200 comprises a frame 9 , a monotube clamp 14 , a rope holding slide 11 and a fixing screw 12 . The frame 9 is provided with guide rope receiving grooves 10 and jumping roller grooves 13 .

The frame 9 is made of aluminum, for example. Frame 9 is joined to single tube clamp 14 . The frame 9 extends from the single tube clamp 14 in the negative X-axis direction.

The guide rope receiving groove 10 is a groove for receiving the guide rope 18 . The guide rope receiving groove 10 extends in the Y-axis direction. The rope holding slide 11 holds a guide rope 18 resting on the guide rope receiving groove 10 . The rope holding slide 11 is horizontally movable. A fixing screw 12 is a screw for fixing the rope holding slide 11 . The fixing screw 12 fixes the position of the rope holding slide 11 by being tightened in a state where the rope holding slide 11 has moved to the position holding the guide rope 18 . The guide rope 18 is thereby fixed in the guide rope receiving groove 10 by the rope holding slide 11 .

The jumping roller groove 13 is a groove in which the jumping roller 3 runs when the self-propelled cable drawing machine 100 goes over the guide rope holding hardware 200 . That is, the jump-over roller groove 13 is a groove that serves as a passage for the jump-over roller 3 .

The jumping roller groove 13 extends in the Y-axis direction. That is, the jumping roller groove 13 extends in a direction parallel to the guide rope receiving groove 10 . The jumping roller groove 13 is arranged at a position higher than the guide rope receiving groove 10 . That is, the stepping roller groove 13 and the guide rope receiving groove 10 are formed so that the bottom surface of the stepping roller groove 13 is higher than the bottom surface of the guide rope receiving groove 10 . The single tube clamp 14 fixes the guide rope holding hardware 200 to the single tube 19 .

It should be noted that the climbing rollers 3A and 3B may have a size that does not allow the running rollers 2A and 2B to come into contact with the guide rope holding metal fitting 200 when the self-propelled cable drawing machine 100 gets over the guide rope holding metal fitting 200. FIG.

For example, if the jumping roller groove 13 is positioned sufficiently higher than the guide rope receiving groove 10, the jumping rollers 3A, 3B may have a diameter equal to or smaller than that of the running rollers 2A, 2B.

Further, when the diameter of the jumping rollers 3A, 3B is sufficiently larger than the diameter of the running rollers 2A, 2B, the height of the jumping roller groove 13 may be equal to or less than the height of the guide rope receiving groove 10. . In this manner, the diameter of the jumping rollers 3A, 3B and the height of the jumping roller groove 13 are formed so that the running rollers 2A, 2B do not come into contact with the guide rope holding hardware 200. FIG. Thereby, the self-propelled cable drawing machine 100 can climb over the guide rope holding hardware 200 and pass through the guide rope holding hardware 200 . Note that the guide rope holding hardware 200 may be made of a material other than the hardware.

Next, the tapered roller 300 on which the cable 22 is extended will be described. FIG. 6 is a perspective view showing the configuration of tapered rollers according to the embodiment. The tapered roller 300 includes a frame 15 , rollers 16 on which the cable 22 is placed, and a single tube clamp 17 . The frame 15 is made of aluminum, for example. The frame 15 is joined to the roller 16 and the single tube clamp 17 to connect the roller 16 and the single tube clamp 17 .

The roller 16 is formed using a cylindrical member. The roller 16 extends from the frame 15 in the negative X-axis direction. FIG. 6 shows a case where two rollers 16 are arranged parallel to the X-axis direction within a plane parallel to the XY plane. One end of the roller 16 is connected to the single tube clamp 17 via the frame 15 . The other end of roller 16 is open.

The roller 16 has a shape in which the central portion of a cylindrical member is cut away, and the central portion in the axial direction is recessed more than both end portions. As a result, the roller 16 has a gently curved surface from the central portion to both ends in the axial direction. That is, the roller 16 has a tapered shape from the central portion toward both ends in the axial direction. In other words, the rollers 16 are gently inclined from the axial center toward both ends. Thus, the roller 16 has a tapered shape, and when the cable 22 is moved to the laying position, the cable 22 can slide along the tapered shape.

Since the roller 16 has a tapered shape, it can receive the cable 22 at its central portion when the cable 22 is extended. That is, the cable 22 placed on the rollers 16 moves to the central portion of the rollers 16 due to the inclination provided on the rollers 16 .

Since the roller 16 has a tapered shape, the cable 22 can be easily moved from the central portion to the other end portion side (minus X-axis direction) when arranging the cable 22 . When arranging the cables 22 , the cables 22 are pulled from both ends and slid to the other end outside the rollers 16 to be removed from the rollers 16 . The single tube clamp 17 fixes the tapered roller 300 to the single tube 19 .

Although FIG. 6 shows the tapered roller 300 having two rollers 16, the tapered roller 300 may have one roller 16 or three or more rollers 16. .

Next, a procedure for laying the cable 22 by the cable laying system will be described. The cable laying system lays the cable 22 through the first to fourth steps. Cables 22 include at least one of control cables and instrumentation cables. A control cable is a cable that transmits a control signal used for controlling a device, and an instrumentation cable is a cable that transmits a signal between a computer and a terminal device.

In the first step, the guide rope holding hardware 200 is attached to the single tube 19 and the guide rope 18 is fixed to the guide rope holding hardware 200 . In the second step, the tapered roller 300 is attached to the single pipe 19 to which the guide rope holding hardware 200 has been fixed in the first step.

FIG. 7 is a diagram showing a state in which the first step and the second step are completed in the cable laying system according to the embodiment. FIG. 7 shows a state in which the guide rope holding hardware 200, the tapered roller 300, and the guide rope 18 are arranged in the cable laying system. FIG. 7 shows a front view of the cable laying system.

A guide rope 18, which serves as a running path for the self-propelled cable drawing machine 100, is stretched linearly and horizontally with a tension of about 500 N (Newton) along the cable 22 laying portion. The guide rope 18 is stretched straight and horizontally with a tension of, for example, 500N or less. In this embodiment, the guide rope 18 is arranged in the plus Y-axis direction.

Furthermore, the single tube 19 is fixed to the beam or steel member 20 in order to arrange the guide rope holding hardware 200 which holds the guide rope 18 so that the guide rope 18 does not bend. In the cable laying system, single pipes 19 are fixed to beams or steel members 20 at intervals of 2000 to 4000 mm along the running path of the self-propelled cable drawing machine 100 . That is, in the cable laying system, the single pipe 19 is arranged in the middle of the running route of the self-propelled cable drawing machine 100 . The single pipes 19 are arranged at regular intervals, for example.

After that, the single tube clamp 14 of the guide rope holding hardware 200 is fixed to each single tube 19 . Also, the single tube clamp 17 of the tapered roller 300 is fixed to each single tube 19 . Either the guide rope holding hardware 200 or the tapered roller 300 may be fixed to the single pipe 19 first.

FIG. 8 is a perspective view showing guide rope holding hardware and tapered rollers attached to a single pipe in the cable laying system according to the embodiment. FIG. 9 is a side view showing guide rope holding hardware and tapered rollers attached to a single pipe in the cable laying system according to the embodiment.

After the single tube clamp 14 of the guide rope holding hardware 200 is fixed to each single tube 19 , the guide rope 18 is fixed to the guide rope holding hardware 200 . At this time, the rope holding slide 11 becomes free in the horizontal direction by loosening the fixing screw 12 of the guide rope holding hardware 200 . In this state, the guide rope 18 is pushed into the guide rope receiving groove 10, and the rope holding slide 11 is slid in the rope holding direction. By tightening the fixing screw 12 in this state, the position of the rope holding slide 11 is fixed, and the guide rope 18 is fixed to the guide rope holding hardware 200 . Since the single pipes 19 are arranged at intervals of 2000 to 4000 mm, the guide ropes 18 are held by the guide rope holding hardware 200 at intervals of 2000 to 4000 mm.

Accordingly, even when the guide rope 18 is stretched horizontally with a small tension of about 500 N, the guide rope holding hardware 200 can suppress the bending of the guide rope 18 . Moreover, by holding the guide rope 18 with a plurality of guide rope holding hardware 200 , the guide rope holding hardware 200 can further suppress bending of the guide rope 18 . Also, the operator can easily horizontally arrange the guide rope 18 using the guide rope holding hardware 200 . After the guide rope holding hardware 200 and the tapered roller 300 are fixed to the single tube 19 and the guide rope 18 is fixed to the guide rope holding hardware 200, the third step is performed.

In the third step, the self-propelled cable drawing machine 100 pulls the cable 22 . Specifically, first, the cable 22 is attached to the untwisting jig 6 of the self-propelled cable drawing machine 100 using the untwisting metal fitting 24 and the grommet 21 . Then, the running roller 2 of the self-propelled cable drawing machine 100 is hung on the guide rope 18, and the running direction is selected by operating the running direction selection switch 7. FIG. Further, when the power switch 8 is turned on, the motors 4A and 4B operate, the running roller 2 rotates, and the self-propelled cable drawing machine 100 pulls the cable 22 while running on the guide rope 18 .

The self-propelled cable drawing machine 100 travels on the guide rope 18 while getting over the guide rope holding hardware 200 . FIG. 10 is a perspective view of the self-propelled cable drawing machine and the guide rope holding hardware when the self-propelled cable drawing machine goes over the guide rope holding hardware according to the embodiment. FIG. 11 is a side view of the self-propelled cable drawing machine and the guide rope holding hardware when the self-propelled cable drawing machine goes over the guide rope holding hardware according to the embodiment.

When the self-propelled cable drawing machine 100 climbs over the guide rope holding hardware 200, the jumping rollers 3A and 3B run in the climbing roller groove 13 of the guide rope holding hardware 200 and get over the guide rope holding hardware 200. . In this case, the running roller 2 is floating from the guide rope 18 . When the self-propelled cable drawing machine 100 gets over the guide rope holding hardware 200 , the running roller 2 contacts the guide rope 18 and the running roller 2 runs on the guide rope 18 .

Since the self-propelled cable drawing machine 100 is provided with the jump rollers 3A and 3B in this way, the self-propelled cable drawing machine 100 can get over the guide rope holding fittings 200 without hindering the traveling. .

If the fall prevention arms 5A and 5B collide with the guide rope holding hardware 200 when the self-propelled cable drawing machine 100 climbs over the guide rope holding hardware 200, the fall prevention arms 5A and 5B must be rotated. , the collision of the fall prevention arms 5A and 5B with the guide rope holding hardware 200 may be avoided. For example, if the shape and size of the rod-shaped member extending in the minus Z-axis direction of the fall prevention arms 5A, 5B is such that it collides with the guide rope holding hardware 200, the plus X-axis of the fall prevention arms 5A, 5B A rod-shaped member extending in the direction may be rotated by 90° so as to be parallel to the running direction.

The cable 22 is drawn on the tapered rollers 300 by running the self-propelled cable drawing machine 100 on the guide rope 18 . FIG. 12 is a front view of the cable laying system when the self-propelled cable drawing machine according to the embodiment is pulling the cable.

A cable 22 is attached to the self-propelled cable drawing machine 100 using a twist return metal fitting 24 and an armature 21 . The twist back fitting 24 is also called a monkey ring or swivel. The amiso 21 is also called a cable grip.

As shown in FIG. 12, the self-propelled cable drawing machine 100 moves along the guide rope 18 extending in the plus Y-axis direction, thereby drawing the cable 22 in the plus Y-axis direction. This cable 22 is placed on tapered rollers 300 . As a result, the cable laying system can lay the cable 22 even in a narrow space where it is difficult for people to come and go. That is, the cable laying system can easily lay the cable 22 even in a narrow space where the height from the floor 23 to the beam or the ceiling of the cable processing room of a plant such as a power plant is low and where it is difficult for people to come and go. .

In a fourth step, the cables 22 are arranged. Specifically, the cable 22 extended on the tapered roller 300 is pulled from both ends and slid laterally from the tapered roller 300 toward the installation location, thereby preventing people from coming and going. , the cable 22 can be arranged.

As described above, according to the embodiment, the self-propelled cable drawing machine 100 includes the traveling rollers 2 and the jumping rollers 3 , so that the guide rope holding hardware 200 can be climbed over. Therefore, three or more guide rope holding metal fittings 200 can be arranged, and the guide rope 18 can be held by three or more guide rope holding metal fittings 200 . Therefore, even when the guide rope 18 is stretched horizontally with a small tension of about 500 N, the guide rope holding hardware 200 can suppress the bending of the guide rope 18 . Thereby, the self-propelled cable drawing machine 100 can stably lay the cable 22 over a long distance while traveling on the guide rope 18 .

Further, since the tapered roller 300 is tapered, the cable 22 is extended to the central portion of the tapered roller 300 while the cable 22 is being extended, and the cable 22 can be easily moved during alignment. It becomes possible.

The configuration shown in the above embodiment is an example, and can be combined with another known technique, and part of the configuration can be omitted or changed without departing from the scope of the invention. It is possible.

1, 9, 15 frame, 2, 2A, 2B traveling rollers, 3, 3A, 3B riding rollers, 4A, 4B motors, 5A, 5B fall prevention arms, 6 twisting jig, 7 traveling direction selection switch, 8 power supply Switch, 10 Guide rope receiving groove, 11 Rope holding slide, 12 Fixing screw, 13 Passing roller groove, 14, 17 Single pipe clamp, 16 Roller, 18 Guide rope, 19 Single pipe, 20 Steel material, 21 Groove, 22 Cable, 23 floor, 24 return fitting, 100 self-propelled cable drawing machine, 200 guide rope holding fitting, 300 tapered roller.

Claims (6)

a self-propelled cable drawing machine that draws the cable by pulling the cable while traveling on a guide rope stretched along a cable laying location;
a single pipe fixed to the floor along the running route of the self-propelled cable drawing machine;
a guide rope holding part fixed to the single pipe and holding the guide rope;
with
The self-propelled cable drawing machine
a running roller that moves on the guide rope by rotating on the guide rope;
a jumping roller that is attached to the running roller and moves on the guide rope holding portion by rotating together with the running roller;
has
The guide rope holding portion is provided with a guide rope receiving groove for holding the guide rope and a jumping roller groove serving as a passage for the jumping roller,
When the self-propelled cable drawing machine gets over the guide rope holding part, the climbing roller runs in the climbing roller groove,
A cable laying system characterized by: The single tubes are arranged at regular intervals,
The cable laying system according to claim 1, characterized in that: The riding roller has the same rotating shaft as the running roller and has a larger diameter than the running roller.
3. The cable laying system according to claim 1 or 2, characterized in that: The stepping roller groove is arranged at a position higher than the guide rope receiving groove,
4. The cable laying system according to any one of claims 1 to 3, characterized in that: The guide rope is stretched straight and horizontally with a tension of 500 N or less,
The cable laying system according to any one of claims 1 to 4, characterized in that: further comprising a roller fixed to the single tube below the guide rope holding portion and receiving the cable drawn by the self-propelled cable drawing machine,
The roller has a tapered shape in which the central portion in the axial direction is recessed from both ends, and when the cable is moved to the installation location, the cable can slide along the tapered shape. is becoming
The cable laying system according to any one of claims 1 to 5, characterized in that:

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