JPH0442438Y2 - - Google Patents

Description

[Detailed explanation of the invention] [Purpose of the invention] (Field of industrial application) This invention is a snake and chawl prevention device for branch lines installed to prevent snakes and chawls from winding up on branch lines of utility poles, etc. It is related to.

(Prior art) In the past, snakes or vines of plants such as vines curled up on the branch lines of utility poles, telephone cable poles, etc., especially in mountainous areas, and when they came into contact with the wires, they shot off, resulting in power outages or disconnections. Or, it may have caused situations such as communication failure.

For this reason, roll-up preventive devices such as large funnel-shaped ones with the upper part closed and rod-shaped snakeskin and chalice devices have been proposed and used.

(Problem that the invention aims to solve) However, the former is prone to wind trapping, and the main body of the preventive device may be damaged due to the influence of wind pressure, and the preventive device may sway due to the influence of turbulence, causing not only the main body of the preventive device but also the utility pole itself, including the branch line, to be damaged. It was having a negative impact.

In the latter case, despite its long rod-like shape, snakes and vines tend to wind up, and the number of parts is large, making installation work complicated.

Further, for a double branch line in which sub-lines are placed side by side, the number of preventers required is equal to the number of branch lines, and the preventers are located at positions where the preventers can be installed without interfering with each other.

Therefore, this invention prevents the above-mentioned troubles, and has an optimal form for preventing snakes, vines, etc. from curling up, and also for utility poles with reinforcement sub-lines placed side by side. The present invention provides a preventive device that can be worn astride.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above object, the preventive device in the present invention is a preventive device A having a hollow disk shape with a substantially rhombic center cross section. The main bodies 1, 1' formed by joining are characterized in that flanges 2, 2' are provided on the end surfaces of the diamond-shaped parts, respectively, and a plurality of holes 3 are provided in the flange surfaces into which the branch wires and sub wires are inserted. It is a snake and chafe prevention device for branch lines.

In particular, in the hole into which the sub wire 13 is inserted, a large number of fold grooves 4 are provided in parallel to form the insertion part 5, and the part formed by cutting out the fold groove 4 of the insertion part is also used as the hole 3a. A rectangular frame 6 is provided near the area where the sub line is inserted, and an elastic body 7 is filled in the frame.
Alternatively, the hole 3c may be formed by a fitting portion 8 formed by cutting into the main body 1 a comb-like ruled line made of a large number of parallel lines.

The overall shape of the preventer A may be egg-shaped,
The circumference is not limited to a circle, but may be polygonal.

In addition, if temporary fixing hooks 9 and temporary fixing holes 10 that fit into each other are provided on the flange surfaces of the main bodies 1 and 1', the
Convenient for temporarily fixing preventive devices.

(Function) To explain how to use one embodiment of this invention, the overall shape of the preventive device A of this invention is a disc-shaped hollow body with a substantially rhombic cross section. As it rises while coiling,
It comes into contact with the lower surface of the preventer A, which is hollow and has a bulging shape, and becomes a hindrance, and in order to rise further, it must extend in the horizontal direction at one end and take a detour to climb beyond the bulging outer circumferential surface. It is constructed in such a way that it loses its balance and falls due to its own weight or being blown by the wind.

Branch wires related to utility poles are not limited to single wires, but sub-wires are often placed alongside them for reinforcement, but even in this case, they are installed on the flange or near the flange joint.
If the sub wire 13 is fitted into the reinforcing sub wire insertion hole,
The preventer A can be attached to the side-by-side sub-wire 13 without any hindrance.

Furthermore, depending on the installation condition of the branch line and the installation position of the preventive device, the position of the hole into which the branch line and sub-line fit will change, so in order to accommodate a wide range of changes, a large number of fold grooves are provided in parallel (the sub-line is (The part corresponding to the matching position is cut out according to the crease groove and is used as a fitting hole.) Alternatively, the hole into which the subline fits is provided in the shape of a rectangular frame on the flange, and an elastic body is loaded into the frame. (A sub-line is passed through a rectangular sub-line insertion groove and an elastic body is loaded in the gap to create an insertion hole.) Or, it is formed by cutting a ruled line made of many parallel lines in a comb pattern. The fitting part is pressed against the sub-line, and the part that is turned over by the sub-line is used as the fitting hole.

[Effect of idea]

According to this invention, in some cases, the preventive device A may be installed across a double branch line in which the reinforcing sub line 13 is placed side by side.
It has the advantage of being able to be installed without any support, and conventionally the double branch line mentioned above was fitted with two preventers at the top of the branch line, but this is not necessary and it can be installed at a relatively low location. This has the great effect of greatly reducing the effort required to attach the preventive device.

[Brief explanation of the drawing]

FIG. 1 is a front view showing how the preventive device of the present invention is installed, FIGS. 2, 3, 4, and 5 are perspective views showing other embodiments, and FIG. Figure 2, Figure 7 is Figure 3, Figure 8 is Figure 4,
FIG. 9 is a partially enlarged perspective view of the subline insertion portion of FIG. 5. FIG. A...Preventive device, 1, 1'...Body, 2, 2'...
Flange, 3, 3a, 3b, 3c...hole, 4...
Folding groove, 5... Fitting part, 6... Frame, 7... Elastic body, 8... Fitting part, 9... Temporary fixing hook, 10
...Hole for temporary fixing, 11...Tightening bolt, 12
...branch line, 13...subline.

Claims (1)

[Scope of utility model registration request] In the preventer A having a hollow disk shape with a substantially rhombic center cross section, the main bodies 1 and 1' formed by joining the preventers at the center cross section are provided with flanges 2 and 2' on the end surfaces of the rhombic parts, respectively, A snake and chafe prevention tool for branch lines, characterized in that a plurality of holes 3 into which branch lines and sub-lines are inserted are provided on the flange surface.