JPS5920246B2 - Cable snake forming device - Google Patents

Description

[Detailed description of the invention] The present invention is applicable when laying a cable in a tunnel.

The present invention relates to a cable snake forming device that forms a snake in a cable.

When laying cables, in order to absorb thermal expansion and contraction of the cables, offsets are taken at manholes, or cables are laid by snakes in tunnels.

Traditionally, this cable was installed without snake removal.

A receiving roller is installed in advance in the tunnel, and the cable is guided by the receiving roller into the tunnel or into the pit. After the cable is manually lifted into the trough, the snake is formed sequentially from the end of the cable. .

Since the snake is formed by one person or by using a hydraulic cable bender, etc., each operation is time-consuming and labor-intensive, and the efficiency of each operation is low.

In particular, as the capacity of cables increases, it becomes increasingly difficult to
When it comes to ultra-high pressure and large size, it is impossible to do it manually.

In view of these points, the present invention provides a snake forming device that automatically forms snakes, thereby solving the above-mentioned drawbacks.The gist of the present invention is as follows.

Two shaft rods are installed between parallel frames in parallel in a direction orthogonal to the frames, sliders are provided on each of the shaft rods so as to be slidable, and a substrate is placed between the sliders on one side. is engaged with the elongated hole, and the other is pivotally connected.

Oscillating bodies are pivotally attached to both ends of the base plate facing in opposite directions perpendicular to the shaft rod, and a pair of opposing guide rollers is provided on the lower surface of the oscillating body. A suitable number of cables are provided protruding downward, a driving source for swinging the swinging body is connected to the swinging body, and a cable is inserted between the guide rollers of the swinging body so that the cable is snaked by the swinging of the swinging body. The feature is that the number 5 is set to form .

The present invention will be described in detail below with reference to an embodiment shown in the drawings.

Reference numeral 1.1 denotes parallel frames, and both frames 1.1 are connected and fixed by reinforcing rods 2.

Two shaft rods 3, 3 are installed between the frames 1, 1 in a direction perpendicular to the frames 1.

Sliders 4, 4 are slidably provided on the shaft rods 3, 3, and between the sliders 4, 4, the ends thereof extend outward from the sliders 4°4. The substrate 5 is provided so that one side engages the shaft 41 with the elongated hole 51 and the other side is pivotally connected to the pivot shaft 42.

Swing plates 6, 6, which swing around a pivot shaft 7, are swingably attached to both ends of the substrate 5.

The base end portions of the rocking plates 6, 60 extend laterally, and the extending portion 8
8, the cylinder 9 is pivoted, the main body 9a of the cylinder 9 is attached to one extending portion, the piston rod 9b of the cylinder 9 is pivoted to the other extending portion, and the pivoted portion extends inside the elongated hole 9c. The swing plate 6 is slidably provided, and the swing plate 6,
6 appears to swing around the axis T.

Two pairs of guide rollers 10.11 are attached to the lower surface of each of the rocking plates 6.6, which are rotatably supported for one rotation, facing downward.

The guide rollers 10.11 are provided as a pair facing each other, and the cable C is passed between the guide rollers 10.11.

Incidentally, the frames 1, 1 are provided with supporting legs 12.

A roller 13 is rotatably provided at the tip of the supporting leg 12.

It may be easier to move.

According to the present invention, when the cylinder 9 is operated, the proximal end extension 8 of the rocking plate 6 is pulled or pushed as the piston rod 9b moves back and forth.

At the same time, the swing plate 6 swings left and right about the pivot 7 with respect to the length direction of the cable.

Therefore. Opposing guide rollers 10 provided on the swing plate 6
11 is a passage for the cable C, so when the cable C is inserted between the guide rollers 10 and 11 and the swing plate 6 is actuated to retract the piston rod 9b of the cylinder 9, Cable C is pushed upward in FIG. 1 to form a bend.

Next, when the piston rod 9b of the cylinder 9 is operated to extend 5 at a remote position, the cable C is pushed and bent in the opposite direction to form a bend opposite to the previous one.

Therefore, by activating the snake forming device to bend the cable in one direction and then running the snake forming device to a position where the next cable is bent in the opposite direction, snakes are formed in the cable C in sequence.

In this case, the guide rollers 10 and 11 of the snake forming device move along the snaked cable, and the swing plates 6 and 6 engage the sliders 4 and 4, and one engages with the elongated hole 51. However, since the other end is pivotally connected to the base plate 5 which is pivotably provided, the guide roller can be easily moved along the cable due to the rigidity of the cable C.

As explained above, the present invention provides cable snake 75.
Since it can be formed dynamically, one task is easy, even a small number of people can work on it, and the efficiency of one task can be improved.

Moreover, it has a simple structure and can be easily manufactured at low cost.

Note that the guide rollers 10.11 of the above embodiment are provided on the lower surface of the rocking plate 6 so as to protrude downward, and a passage for the cable C is formed on the lower surface of the rocking plate 6. Of course, it may be the upper surface of the .

Furthermore, the rocking device for the rocking plate 6 is not limited to the cylinder as in the embodiment.

[Brief explanation of drawings]

The drawings show an embodiment of the invention, and FIG. 1 is a plan view. FIG. 2 is a bottom view, and FIG. 3 is a side view. 1...Frame, 3...Shaft rod, 4...Slider, 5
... Board, 6... Swinging rod, 7... Axis, 9...
cylinder. io, ii...guide roller, 42...axis, 51.
・Long hole.

Claims (1)

[Scope of Claims] 1. Two shaft rods are installed between parallel frames in parallel in a direction perpendicular to the frames, sliders are provided on each of the shaft rods so as to be slidable, and the slider A substrate is provided in between, with one side engaged with the elongated hole and the other pivoted, and rocking bodies are pivoted on both ends of the substrate, facing in mutually opposite directions perpendicular to the shaft rod. . A suitable number of guide rollers facing each other and forming a pair are protruded downward on the lower surface of the rocking body, and an axial motion source for rocking the rocking body is connected to the rocking body. A cable snake forming device, characterized in that the cable is inserted between the guide rollers of the oscillator, and a snake is formed on the cable by the oscillation of the oscillator.