JPH0237224Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention is a type of bird that prevents birds from resting on the overhead wire by stretching a thin wire material directly above the overhead wire in parallel with the overhead wire. Regarding the bird damage prevention device, the present invention proposes a bird damage prevention thin wire attachment device in which the thin wire is always positioned directly above the overhead wire.

<Prior Art and Problems> Various bird damage prevention devices have been proposed in which a thin wire is stretched directly above an overhead wire to prevent flocks of birds from resting on the overhead wire. 58−36297
It is also disclosed in the publication. However, due to deterioration over time or other causes, the tensioned thin wire material may rotate, causing the mounting bracket to shift from directly above the overhead wire, significantly reducing the ability to prevent the bird flock from resting. be. In addition, in the installation of the thin wires mentioned above, since the position directly above the overhead wires is detected and installed, for example, as seen in the technology described in Japanese Patent Publication No. 59-53761, the wires are placed on the overhead wires prior to installation. Special work may be required, such as running a puller to mark a reference line on the overhead line.

<Means for solving the problem> This idea was made in consideration of the above circumstances, and a thin wire material is stretched directly above the overhead wire in parallel with the overhead wire to prevent birds from resting on the overhead wire. A bird damage prevention device of the type that prevents bird damage includes a clamping bracket that is attached and fixed to the overhead wire at a predetermined interval so as to clamp the overhead wire, and a loose fitting bracket that is loosely fitted and held on the clamping bracket. The loosely fitting metal fitting is loosely fitted and held in the clamping metal fitting at its intermediate portion, and has a weight on the lower side and a thin wire attachment part on the lower side, and the attachment part is A means for solving this problem is a thin wire rod attachment device for bird damage prevention, which is characterized in that it is configured to fix one end of a thin wire rod having a length equal to the interval at which the clamping fittings are attached to the overhead wires. The present invention proposes the above-mentioned mounting device that does not cause misalignment of the thin wire material.

<Function> A loose fitting fitting is rotatably fitted and held in a clamping fitting that is attached and fixed to the overhead wire at a predetermined interval so as to sandwich the overhead line, and the loose fitting fitting is attached with a weight on the downward side. Since it has a weight, the upper side is always located directly above the above-mentioned overhead wire, and therefore, the thin wire fixed to the upper end of the loose fitting has the effect of always being located directly above the above-mentioned overhead wire. This ensures that flocks of birds are prevented from stopping on the overhead line.

<Example> Fig. 1 is a perspective view showing a thin wire rod installed on an overhead wire using the bird damage prevention thin wire rod attachment device of the present invention, and Fig. 2 is a perspective view of the entire set of the same device. FIG. 3 is a front view of the device, and FIG. 4 is a side view of the device.

The clamping bracket 2, which is attached and fixed by clamping the overhead wire 1, consists of two parts, an upper part and a lower part.The central part is cylindrical and has tightening parts 21 and 21' at both ends. The tightening portion 21,
21' is tightened with bolts and nuts to secure it to the overhead line 1. A loose fitting fitting 3 is loosely fitted and held in the cylindrical portion of the clamping fitting 2, and the loose fitting fitting 3 also consists of two parts, left and right, and a weight 31 is attached to the lower end in the direction of gravity. On the other hand, a loose fitting part 33 is formed at the upper end, which has an attachment part 32 made of a thin wire material and bulges outward at the upper and lower intermediate parts, and this part is attached to the cylindrical part of the clamping fitting 2. Fitted. The mounting portion 32 has an appropriate gap formed at the upper end, and a pin 34
is provided. A loop is formed at both ends of the thin wire material 4, and the tip is slightly erected upwards. A protrusion 41 is formed that protrudes above the attachment part 32 and prevents birds from resting on the attachment part 32. In addition,
The length of each thin wire 4 is the same as the interval (predetermined interval) between the clamping fittings 3 and the overhead line 1, and a plurality of these are attached to the desired section of the overhead line 1 at the attachment part 3.
Installation is performed by connecting via 2.

When installing on the overhead line 1, first, attach and fix the clamping parts 21, 21' using bolts and nuts with the clamping fitting 2 at the installation starting position so as to sandwich the overhead line 1, and then fix the clamping parts 21, 21' with bolts and nuts. The portion 33 is fitted into the cylindrical portion of the clamping member 2 by being sandwiched from the left and right sides, and then tightened with bolts and nuts. At this time, the thin wire material 4
The loop portion at one end of the mounting portion 32 is fitted into the pin 34 of the mounting portion 32 to be fixed. Furthermore, the next clamping fitting 2 is attached and fixed at a predetermined interval (equal to the length of one thin wire 4), and the other end of the thin wire 4 and the next thin One end of the wire 4 is fixed, and this operation is repeated to connect a desired section of the overhead wire 1. It should be noted that the inner diameter of the loose fitting part 33 of the loose fitting fitting 3 is slightly larger than the outer diameter of the cylindrical part of the holding fitting 2, and that the thin wire material 4 to be installed is centered around the loose fitting part 33, and that the overhead wire Of course, the weight of the weight 31 is set so that it is located above 1.

<Effects> Since the device for attaching the thin wire rod for bird damage prevention of the present invention has the above-mentioned configuration, the thin wire rod is always located directly above the overhead wire, and the mounting bracket does not rotate due to changes over time or other causes. There is no misalignment of the thin wire material caused by this, and there is no need to perform work such as marking reference lines for attachment prior to installing the thin wire material on the overhead wire. The weight of the loose fitting is used to position the thin wire directly above the overhead wire, so when the lower side of the loose fitting has sufficient weight or the thin wire is extremely light. It is also possible to omit this.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a thin wire rod installed on an overhead line using the bird damage prevention thin wire rod attachment device of the present invention; FIG. 3 is a front view of the device, and FIG. 4 is a side view of the device. 1... Overhead wire, 31... Weight, 2... Clamping fitting, 32... Mounting part, 3... Loose fitting fitting, 4... Thin wire material.

Claims (1)

[Scope of utility model registration request] In a bird damage prevention device of the type in which a thin wire is stretched parallel to the overhead wire directly above the overhead wire to prevent birds from resting on the overhead wire, the overhead wire is held between the overhead wires. It has a clamping bracket that is attached and fixed at a predetermined interval to the clamping bracket, and a loosely fitting bracket that is loosely fitted and held in the clamping bracket, and the loosely fitting bracket is loosely fitted and held in the clamping bracket at the middle part, and the lower side has a weight on the upper side, and a thin wire attachment part on the upper side, and the attachment part fixes one end of the thin wire having a length equal to the interval at which the clamping fitting is attached to the overhead wire. A thin wire attachment device for preventing bird damage.