JPS5918810Y2 - cable guide device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cable guide device, and more particularly to a cable guide device suitable for guiding cables when three cables are laid in a stacked manner on a cable receiving fitting in a tunnel. .

When laying a large capacity cable in a tunnel, guide rollers, commonly known as rollers, are used.A large number of guide rollers, commonly called rollers, are placed at appropriate intervals along the laying route, and the cable is placed on top of the guide rollers. I'm trying to get it running.

Thus, within the sinus canal, the cable is placed directly on the cable receiving fittings protruding from the inner wall of the sinus canal in multiple stages, with or without the trough.

Therefore, in order to place the cable on the cable holder, the following method has been adopted.

That is, as shown in FIG. 1, drum-shaped guide rollers 1 are arranged on the floor of the working passage in the tunnel at intervals of 2 to 3 m, and the cable 2 is once extended onto the passage, and then ．． Place it on the cable holder 3.

This method blocks the narrow working path and obstructs traffic, and when the cable is pulled up to a high place (approximately 3 m),
Temporary scaffolding was set up at a high location, but the work was complicated as it required consideration such as preparing a special cable pulling trolley separately.

As another method, as shown in FIG. 2, a drum-shaped guide roller 4 with flanges at both ends is attached to the tip of the cable holder 3, and while the cable 2 is being extended, the cable holder 3 is There is a way to put it on top.

However, in this method, the guide roller 4 is installed protruding into the work path, which obstructs the passage.Also, when moving the cable from the guide roller to the specified position of the cable receiving bracket, the weight of a large cable is 20 ~40
Since it weighs 1.5 kg, it requires a lot of effort.

Furthermore, although not shown, it is conceivable to arrange the guide rollers shown in Figure 2 between the upper and lower cable holders, but there is not enough space, especially if three strips are placed in one row of the cable holders. When the cables are arranged in bales, the cables and the guide rollers come into contact with each other, making it virtually impossible to lay the cables with the guide rollers provided.

The present invention has been made in consideration of this point, and an object of the present invention is to provide a cable guide device that allows a large cable to be easily laid on a cable receiving fitting.

According to the present invention, by reducing the height, the cable can be guided while being placed between the upper and lower cable receiving fittings.

Hereinafter, details of the present invention will be explained with reference to illustrated embodiments.

3 to 5 illustrate one embodiment and other embodiments of the present invention.

In FIGS. 3 and 4, reference numeral 10.11 indicates a paddle-shaped wheel, which is rotatably supported by hanging rods 12.13, respectively.

The hanging rods 12 and 13 are removably suspended from a cable receiving fitting 15 via a mounting fitting 14.

The cable holder 15 for suspending the hanging rods 12 and 13 is located above the cable holder 17 on which the cable 16 is to be placed.

Reference numeral 18 indicates a trough arranged on the cable receiving fitting to accommodate the cable 16.

Thus, the umbrella-shaped wheels 10.11 each have tooth profiles 10a, 11a that mesh with each other on their outer peripheral edges,
Further, each of the inclined surfaces 10b and llb is a curved surface with a radius of curvature equal to or larger than the outer diameter of the cable 16.

The upper end of the hanging rod 12 is bent into an L shape, and a through hole is provided at the bent portion and the tip end, and by inserting and removing poles [9, 20] through each through hole, the hanging rod 12 is suspended from the mounting bracket 14. ing.

The other hanging rod 13 is similarly configured.

The mounting bracket 14 includes a notched cylindrical main body 14a that can be removably inserted into a cable receiving bracket 15 protruding from the inner wall of the sinus, and a hanging portion 14b that connects the upper ends of the hanging rods 12 and 13. ing.

Note that a roller 21 having a curved outer peripheral surface may be rotatably fitted on the wheel 11 to the hanging rod 13, if necessary.

This roller 21 is preferably disposed at a bend in the cable laying line.

When the cable is guided by the cable guide device having the above configuration, the two wheels 10 and 11 are suspended from the cable receiver 15 with their respective tooth profiles meshed, and the cable 16 is placed on the curved surfaces of both axles. Make it.

When the cable 16 runs in this state, the wheels 10.11 also rotate and guide the cable 16.

When the cable runs for a predetermined length and is placed in the trough 18, by removing the pole 20 at the upper end of one of the hanging rods 12, the hanging rod 12 is tilted using the other bolt 19 as a fulcrum, and the wheel 10 separated The cable 16 can be housed in the trough 18 directly below from between .11 and 11.

By meshing the two wheels 10, 11, the rotation of both axles can be matched and damage to the outer surface of the cable can be prevented.

In other words, guiding the cable 16 while the rotations of both axles 10 and 11 are unbalanced means that there is slippage between one of the wheels and the cable, and a frictional force acts on the outer surface of the cable. Because it does.

In particular, the larger the capacity of the cable, the more likely it is that damage will occur due to this friction.

The wheels 10 and 11 are rotatably supported on each hanging rod via appropriate bearings, but as long as the wheels rotate smoothly, they may be constructed in a form in which the toothed portions are omitted as shown in Fig. 5. good.

In this way, the height can be reduced by the thickness of the tooth-shaped portion, and workability in a limited space can be improved.

As described above, according to the present invention, the height of the wheel on which the cable is placed is made low by rotating it around the suspension rod suspended in the vertical direction, so that it can be placed between the upper and lower cable holders. Can guide cables.

Therefore, even when three large cables are stacked in bales, the movement of the cables is minimized and can be easily carried out.

[Brief explanation of the drawing]

1 and 2 are schematic diagrams for explaining the conventional cable laying method in a tunnel, respectively, FIG. 3 is a front view showing an embodiment of the present invention, FIG. 4 is a side view of the same, and FIG. The figure is an explanatory diagram showing a part of another embodiment of the present invention. In the diagram, 10.11 is the wheel, 12.13 is the hanging rod, and 15.1
7 is a cable holder, and 16 is a cable.

Claims (1)

[Claims for Utility Model Registration] 1. In a cable guide device that guides cables placed on multi-tiered cable holders during installation,
Two hanging rods are detachably suspended from the cable receiving fitting located above the cable receiving fitting on which the cable is to be placed, and a shaft is freely rotatable so that the outer peripheral surfaces of these hanging rods face each other. A cable guide device comprising a supported umbrella-shaped wheel. 2. The cable guide device according to claim 1, wherein at least one of the hanging rods is suspended so as to be tiltable in a direction perpendicular to the length direction of the cable. 3. The cable guide device according to claim 1 or 2, wherein each wheel has tooth profiles that mesh with each other on the outer peripheral edge thereof. 4. The cable guide according to any one of claims 1 to 3 of claims 1 to 3, wherein the inclined surface of each wheel is a curved surface with a radius of curvature equal to or larger than the outer diameter of the cable. Device.