JPH043530Y2 - - Google Patents

Description

[Detailed explanation of the invention] (Industrial application field) This invention is used to safely extend electric wires between steel towers without constructing scaffolding, for example, when constructing overhead power lines above densely populated areas. This invention relates to a hanging roller device.

(Prior Art) Conventionally, for example, when extending a plurality of electric wires between steel towers at the same time, a plurality of suspension wheels 22 are attached vertically to a single suspension rope 24 as shown in FIG. Using a multi-chain suspension wheel 21 consisting of
As shown in FIG. 7, a large number of existing wires G, such as ground wires, which have already been installed between the steel towers T and T, are suspended at intervals, and the new wires W are passed through each hanging wheel 22 and extended. method is adopted. These multiple hanging wheels 21 are connected to each other by a towing rope 23, and by pulling on this towing rope 23,
They are deployed at predetermined intervals between steel towers.

(Problems to be solved by the invention) In the case of using the above-mentioned conventional multi-chain hanging wheel 21, attached obstacles such as various clamps and weights for preventing twisting that are attached during the extension of the newly installed electric wire W are attached to each wire. A large passing resistance occurs when passing the car 22,
A large amount of force is required to carry out the wire-stretching work, and this passage resistance causes each metal wheel 22 to be pulled and shake greatly, causing the resonance phenomenon to overlap and cause damage. There is a problem in that it is necessary to interrupt the work that involves 23.

The present invention solves the above-mentioned conventional problems, and eliminates the occurrence of large vibrations during wire extension work.
It is an object of the present invention to provide a hanging roller device for electric wire erection work, which has a simple structure and can perform wire extension work smoothly without entangling or damaging equipment due to vibration.

(Means for Solving the Problems) In the present invention, in order to solve the above-mentioned conventional problems, a plurality of hanging wheels 3 movably suspended from the existing line G at mutual intervals are installed. , a hanging beam 4 is suspended horizontally in a direction perpendicular to the existing line G, and vertical rollers 6, 6 are attached to the lower portions of a pair of hanging ropes 5, 5 hanging from both ends of the hanging beam 4, respectively.
A horizontal roller 7 is rotatably installed between the lower ends of these vertical rollers 6 to form a plurality of suspension supports 1, and the lower ends of adjacent suspension supports 1, 1 are supported rotatably. Both sides were connected by at least two steady ropes 8, 8 to constitute a hanging roller device for electric wire erection work.

(Function) In the hanging roller device of the present invention, the newly installed electric wire W and the pulling rope R for the newly installed electric wire are passed between the vertical roller 6 and the horizontal roller 7, and the wire is stretched by pulling the wire. The newly installed electric wire W and the pulling rope R are smoothly extended while contacting and rolling the vertical rollers 6 or the horizontal rollers 7, and attached equipment such as clamps also pass through the hanging support 1 without difficulty. Since each suspension support 1, 1 is connected by two steady ropes 8, 8, the interaction of these ropes prevents the suspension support 1 from swinging, and the smooth extension of the newly installed electric wire W is ensured. does not cause any hindrance.

(Embodiment) An embodiment of the present invention is shown in FIGS. 1 to 6.
In the figure, reference numeral 1 denotes a number of hanging supports connected to each other by towing ropes 2 and suspended from an existing line G such as a ground wire at intervals.

The suspension support 1 suspends a suspension beam 4 horizontally in a direction orthogonal to the existing line G via a suspension rope 10 below a suspension wheel 3 that is movably suspended on the existing line G. , vertical rollers 6, 6 are rotatably supported at the bottom of a pair of hanging ropes 5, 5 hanging from both ends of this hanging beam 4, and a horizontal roller 7 is rotated between the lower ends of these vertical rollers 6, 6. A pair of ropes 5,
Similarly, vertical rollers 6 and horizontal rollers 7 are provided in several stages, with rollers 5 hanging down. Thus, the two sides of the lower ends of the adjacent suspension supports 1 are connected in the front-rear direction with two steady ropes 8, 8,
A protective net 9 is stretched between these steady rest ropes 8,8.

For example, as shown in FIG. 4, the metal wheel 3 has six rollers 11 connected in an annular shape so that the ring can be freely opened and closed, and a pair is provided on a base 14 facing each other.
A locking metal fitting 12 for the towing rope 2 and a hanging metal fitting 13 for the suspension rope 10 are provided at the lower part thereof.

A pair of vertical rollers 6 are provided on each side as shown in FIG. 3, and are rotatably inserted into the shaft tube 15 as shown in FIGS. 1, 2, and 6. A hanging rope 5 is attached to the upper end of the shaft tube 15 via a hanging fitting 16.
The lower end is fixed on the roller support member 17.

As shown in FIG. 5, the horizontal roller 7 is rotatably inserted into a similar shaft tube 18, and both ends of the shaft tube 18 are supported by brackets 19 on the roller support member 17, respectively. .

A rope locking fitting 20 is provided at the bottom of each roller support member 17, and a hanging rope 5 (FIG. 5) for hanging the lower vertical roller 6 or an adjacent A connecting rope 8 (FIG. 6) for connecting to the hanging support 1 is locked.

Therefore, by pulling the towing rope 2, a large number of suspension supports 1 suspended from the existing line G can be moved to the first
As shown in the figure, the steel towers T and T are deployed with a predetermined distance between them. Then, the newly installed electric wire W is passed over each horizontal roller 7, and the newly installed electric wire W is smoothly extended while rolling the horizontal rollers 7. After the electric wire is tied to the steel tower T, it may be bent horizontally and installed. At such steel tower locations, newly installed electric wires will be bent and extended. The newly installed electric wire W passing through the hanging support 1 suspended in such a place will be pulled horizontally and laterally, but in this case, the newly installed electric wire W will come into contact with the vertical roller 6 and roll it. The line was extended without difficulty. Since each suspension support 1, 1 is connected back and forth by two steady ropes 8, 8, the interaction of these ropes prevents the suspension support 1 from swinging, and the smooth extension of the newly installed electric wire is ensured. There will be no interference with the line. Furthermore, in this embodiment, a protective net 9 is stretched between the two parallel steady rest ropes 8, 8, so that the facilities and passersby below are protected from falling objects. Therefore, in this case, there is no need to provide above-ground protection facilities, and the construction cost and associated construction period can be omitted.

Note that the present invention is not limited to the illustrated embodiment; for example, the same effect can be achieved even if the rollers 6 and 7 are configured in one stage or in multiple stages, and the rollers 7 can be arranged in a horizontal direction. It is also possible to extend a plurality of electric wires (multi-conductor) at the same time by dividing the wire into a plurality of sections and partitioning them with a plurality of vertical rollers.

(Effect of the invention) As described above, in the present invention, a plurality of lifting wheels 3 movably suspended from the existing line G at mutual intervals are provided below the hanging wheels 3 in a direction perpendicular to the existing line G. A hanging beam 4 is suspended horizontally, and vertical rollers 6, 6 are rotatably supported at the bottom of a pair of hanging ropes 5, 5 hanging from both ends of this hanging beam 4, and the lower ends of these vertical rollers 6 Horizontal rollers 7 are rotatably installed between them to form a plurality of hanging supports 1, and the lower ends of the adjacent hanging supports 1 are connected on both sides with at least two steady ropes 8. Since the suspension roller device for electric wire installation work is configured, the newly installed electric wire and attached fittings such as attachment clamps can pass through the suspension support 1 without difficulty. There is no large vibration generated in the suspension support 1, and therefore, there is no entanglement or damage to equipment due to vibration, and wire extension work can be carried out smoothly, and the structure is simple and can be obtained at low cost. have

[Brief explanation of drawings]

Figures 1 to 6 show an embodiment of the present invention, in which Figure 1 is a perspective view of electric wire installation work using the hanging roller device of the present invention, Figure 2 is a front view of the suspension support, FIG. 3 is a side view of the hanging support, FIG. 4 is a front view of the hanging wheel, FIG. 5 is an enlarged sectional view of the section in FIG. 2, and FIG. 6 is an enlarged sectional view of the section in FIG. Figure 7 is a front view of electric wire installation work using a conventional hanging wheel.
FIG. 8 is a front view of a conventional hanging wheel. 1... Hanging support, 3... Hanging wheel, 4... Hanging beam, 5... Hanging rope, 6... Vertical roller, 7
...Horizontal roller, 8...steady rope, G...
Existing line, W...Newly installed electric line.

Claims (1)

[Scope of utility model registration request] A hanging beam is suspended horizontally perpendicular to the existing line below a plurality of hanging metal wheels that are movably suspended from the existing line at mutual intervals, and a pair of hanging beams are suspended from both ends of the hanging beam. vertical rollers are rotatably supported at the bottom of each hanging rope,
Horizontal rollers are rotatably installed between the lower ends of these vertical rollers to form a plurality of suspension supports, and the lower ends of the adjacent suspension supports are connected on both sides with at least two steady ropes. A hanging roller device for electric wire erection work, featuring: