JPS6349447B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a helically formed armor rod for wrapping around an overhead power transmission line.

Normally, when attaching a clamp such as a spacer or damper to an overhead power transmission line, multiple armor rods formed in a spiral shape are tightly wrapped around the outer circumference of the overhead power transmission line, and the clamp is attached on top of the armor rod. Preventing power lines from being damaged.

As one type of armor rod, an armor rod bundle is known, in which a plurality of armor rods are tied together in a twisted manner using fasteners.

Conventionally, when manufacturing armor rod bundles, a plurality of armor rods were arranged in a twisted manner, held by the worker in his hands, and in this state a stopper was attached to bind the armor rods together. Ta.

However, since armor rods are usually formed into a spiral shape, when held by a worker's hands, each armor rod tends to move easily and the shape of the arrangement tends to collapse. In the case of attaching them, there was a risk that the arrangement shape would further collapse due to the pressure. Since the cap-shaped stopper covers the end face of the armor rod, there is no risk that the end face of the armor rod will damage the overhead power line.

The present invention improves these drawbacks and provides a method for manufacturing an armor rod bundle in which the arranged shape of the armor rods is hard to collapse, and in which it is easy to form a cap-shaped stopping part to cover the ends of the armor rods. It is something.

This will be explained based on an embodiment shown in FIG.

In the figure, numerals 1 to 3 indicate armor rods, and the armor rods 1 to 3 are made of metal wires such as aluminum and formed in advance into a spiral shape.

In the present invention, the armor rods 1 to 3 are first wound around the rod-shaped body 4. This wrapping is done by Armor Rod 1~
The armor rods 1 to 3 are wound at a predetermined pitch so as not to deform the helical shape of the armor rods 1 to 3, and the armor rods 1 to 3 are wound in a twisted manner as shown in the figure, without large gaps between them.

The rod-shaped body 4 is made of metal, synthetic resin, or other material that does not deform when the armor rods 1 to 3 are wound thereon, and its outer diameter is slightly smaller than the outside diameter of the overhead power transmission line around which the armor rods 1 to 3 are wound.

Next, the multiple armor rods 1 are wrapped around each other.
The ends of the rod-shaped body 4 extend and protrude from the end of the rod-shaped body 4 as shown in the figure.

Next, the protruding ends of the armor rods 1 to 3 are immersed in a molten material such as synthetic resin or metal that can be solidified at room temperature, and then this is solidified to form the stop portion 5, and the armor rods 1 to 3 are connected to each other. to conclude.

Further, stop portions are similarly provided at the other ends of the armor rods 1 to 3.

Thereafter, the armor rods 1 to 3 are separated from the rod-shaped body 4 to form an armor rod bundle.

In this embodiment, the end of the armor rod was made to protrude from the end of the rod after the armor rod was wound around the rod, as a means for wrapping the end of the armor rod so as to protrude from the end of the rod. It may be made to protrude at the same time as the armor rod is wrapped.

Further, the molten material constituting the stop portion is desirably one having a hardness equal to or lower than that of the strands constituting the outermost layer of the overhead power transmission line.

The armor rod bundle thus constructed is used by tightly wrapping a plurality of sets around the outer periphery of a predetermined portion of the overhead power transmission line 6 as shown in FIG.

According to the present invention, a plurality of armor rods are wound around a rod-shaped body so that their ends protrude from the ends of the rod-shaped body, and the protruding ends are immersed in a solidifiable melt, Since this is solidified to bond the armor rods together, the plurality of armor rods can be aligned using the rod-shaped body as a jig, and there is no fear that the arrangement shape of each armor rod will collapse.

In addition, since each armor rod is immersed in a molten material while being wound around a rod-shaped body, and the melt is solidified and bonded, a cap-shaped stopping portion can be formed without applying a large pressing force to each armor rod. As a result, there is no fear that the arrangement shape of each armor rod will collapse, and it is possible to easily manufacture an armor rod bundle of stable quality.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram illustrating an embodiment of the method for manufacturing an armor rod bundle according to the present invention, and FIG. 2 is an explanatory diagram illustrating an example of the use of the armor rod bundle. 1-3... Armor rod, 4... Rod-shaped body, 5
... Stop part, 6 ... Overhead power transmission line.

Claims (1)

[Claims] 1. Wrap a plurality of helically molded armor rods around a rod-shaped body in such a way that their ends protrude from the rod-shaped body, and immerse the protruding ends of the armor rods in a solidifiable melt. 1. A method for manufacturing an armor rod bundle, which comprises solidifying and bonding the armor rods together.