JP7443228B2 - Nest prevention device for utility poles - Google Patents

Description

The present invention relates to a nest prevention device for utility poles that is attached to the top of a utility pole to inhibit nesting of birds.

Conventionally, a utility pole cap for preventing bird damage has been proposed, which includes a synthetic resin cap body that covers the top of a concrete utility pole, and a large number of synthetic resin barrier rods that are held upright on the canopy of the cap body. . The barrier rod has a disc-shaped head at the base end of the tapered shaft, and a mountain-shaped rib protruding around the shaft near the head with a space between the head and the rib. The shaft is inserted into the small hole of the cap body from the inside and engaged. By attaching a bird damage prevention utility pole cap, it is possible to prevent short-circuit accidents and contamination caused by birds flying into contact with the top of the utility pole or nesting therein.

Japanese Patent Application Publication No. 7-79685

The above-mentioned conventional power pole cap for preventing bird damage can incorporate and hold nest materials such as branches between the barrier rods, so nests can be built by easily stacking branches and the like up to the tip of the barrier rod. There is a risk that the product may become damaged. Furthermore, since the barrier rod is made of synthetic resin and is thin, it becomes vulnerable to external forces, and the barrier rod may break and fall to the ground, causing an accident.
SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a nest prevention device for utility poles that narrows the flat space for installing a nest and makes it difficult to place long objects such as branches that serve as nest materials, making nesting difficult. .

In order to solve the above problems, the present invention provides a pair of clamping pieces 7a that are opposed to the side surfaces of the top of the utility pole P along approximately half of the circumferential direction and that are tightened and connected by bolts 8a that penetrate through both ends. A mounting band 2 consisting of a band piece 7 stands upright on the tip surface P1 of the utility pole P, and the adjacent edges of the utility pole P are connected to each other, thereby dividing the space into a plurality of narrow spaces, which move downward toward the outside in the radial direction of the utility pole P. A plurality of repellent plates 4 and 5 having inclined edges 4c and 5b extend from a part of the repellent plate 5 to the fastening piece 7a of the mounting band 2, and are fastened together with the band piece 7 by bolts 8a. The nest prevention tool 1 for utility poles was constructed by including a fixing plate 6.

In the present invention, the flat space at the tip of a utility pole where birds can easily attach nests is divided into small sections, and thin repellent plates and their slanted edges are used to prevent birds from perching on long objects such as branches that can be used as nest material. By making it difficult to hold the nests, nesting can be effectively prevented, and the strength can be increased by incorporating repellent plates.

FIG. 1 is a perspective view of a nest prevention tool for utility poles according to the present invention. FIG. 2 is a front view of the nest prevention tool for utility poles shown in FIG. 1; FIG. 2 is a side view of the nest prevention tool for utility poles shown in FIG. 1; FIG. 2 is a plan view of the nest prevention device for utility poles shown in FIG. 1; FIG. 2 is an exploded perspective view of the nest prevention tool for utility poles shown in FIG. 1. FIG.

One embodiment of the present invention will be described with reference to the drawings.
In FIGS. 1 to 5, the nest prevention device 1 for utility poles includes an attachment band 2 for attaching around the top of the utility pole P, and first and second repellent plates 4 and 5 that stand upright on the tip surface P1 of the utility pole P. and a fixing plate 6 for fixing the main body 3 to the mounting band 2.

The attachment band 2 has an arcuate shape along approximately half of the circumferential direction of the side surface of the utility pole P, and consists of a pair of metal band pieces 7 facing each other on both sides with the utility pole P in between. The band piece 7 is provided at both ends with a bolt 8a that rises in the radial direction and horizontally passes through adjacent bolts 8a, and a tightening piece 7a that is tightened by a nut 8b that is screwed into the bolt and is fixed to the telephone pole. The attachment band 2 may be used together with an attachment band for fixing other accessory equipment attached to the utility pole P.

The first repellent plate 4 of the main body 3 is made of a substantially trapezoidal thin metal plate, and stands upright across the center of the tip surface P1 of the utility pole P. The first repellent plate 4 has a lower edge 4a that is linear along the tip surface P1 of the utility pole P, an upper edge 4b whose middle part is parallel to the lower edge 4a, and an inclined downward direction from both ends of the upper edge 4b. and an inclined edge 4c. The first repellent plate 4 has a slit 9 extending vertically downward from the upper edge 4b to engage with the other second repellent plate 5 and reaching a substantially intermediate height position, and a slit 9 for reducing lateral wind pressure load. A plurality of ventilation holes 10 are provided.

One of the pair of second repellent plates 5 is welded to the first repellent plate 4 so that its plate surfaces intersect at a right angle, and the other one similarly engages with the first repellent plate 4 so that its plate surfaces intersect at a substantially right angle. , will stand upright across the tip surface P1 of the utility pole P in parallel with each other at intervals. The second repellent plate 5 is made of a thin metal plate having an approximately triangular shape. The second repellent plate 5 includes a linear lower edge 5a along the tip surface P1 of the utility pole P, and an inclined edge 5b that faces the lower edge 5a and slopes downward from the center toward both ends. One of the second repellent plates 5 extends vertically upward from the center of the lower edge 5a and reaches approximately half the height position, and crosses the plate surface with the first repellent plate 3 by continuing with the slit 9 and receiving each other. It is provided with a slit 11 that engages in such a manner as to cause the wind to move, and a plurality of ventilation holes 12 for reducing the wind pressure load in the lateral direction.

The pair of second repellent plates 5 have continuous fixing plates 6 extending vertically downward in the axial direction so as to alternately follow the side surfaces of the utility poles P at one end thereof. The fixing plate 6 is provided with a long hole 16a in its lower half, through which the bolt 8a of the attachment band 2 is passed, and the fixing position with respect to the attachment band 2 can be adjusted.

This utility pole nest prevention tool 1 is assembled by aligning the slit 9 of the first repelling plate 4 and the slit 11 of one of the second repelling plates 5 so that the plate surfaces intersect, and attaching it to the tip surface P1 of the utility pole P. Put it on. The elongated hole 6a of the fixing plate 6 is aligned with the tightening piece 7a of the mounting band 2 temporarily fastened around the top of the utility pole P, the bolt 8a is passed through, and the nut 8b is tightened. Depending on the position of the bolt 8a of the mounting band 2, the tightening position is adjusted vertically within the elongated hole 6a of the fixing plate 6 to fix it around the top of the utility pole P.
The nest prevention tool 1 for utility poles can be easily installed at high places by temporarily assembling the first repellent plate 4, the second repellent plate 5, and the mounting band 2 on the ground in advance.
The first repellent plate 4 and the second repellent plate 5 stand upright on the tip surface P1 of the utility pole P, dividing the space into a narrow space, and the sloping edges 4c and 5b make it difficult for birds to stop or for long nest materials such as tree branches to be retained. This prevents nesting and fecal damage. Furthermore, the strength of the main body 3 is increased by incorporating the first repellent plate 4 and the second repellent plate 5, and the ventilation holes 10 and 12 reduce the wind pressure load and prevent the main body 3 from falling off.
In addition, in this embodiment, one of the second repellent plates 5 is fixed to the first repellent plate 4 by welding, but they may be engaged with each other through slits in the same manner as the other second repellent plate 5, or vice versa. Both second repellent plates 5 may be integrally welded to the first repellent plate 4. Further, the number of repellent plates may be increased as appropriate.

1 Nest prevention device for telephone poles 2 Mounting band 3 Main body 4 First repellent plate 4a Lower edge 4b Upper edge 4c Slanted edge 5 Second repellent plate 5a Lower edge 5b Slanted edge 6 Fixed plate 6a Long hole 7 Band piece 7a Tightening piece 8a Bolt 8b Nut 9 Slit 10 Ventilation hole 11 Slit 12 Ventilation hole P Utility pole P1 Tip surface

Claims (5)

a mounting band consisting of a pair of band pieces that face the side surface of the top of the utility pole along approximately half of the circumferential direction and are provided with fastening pieces that are tightened and connected by bolts passing through both ends;
a plurality of repellent plates that stand upright on the tip surface of the utility pole, divide the adjacent edges into a plurality of narrow spaces by joining together, and have sloped edges that slope downward toward the outside in the radial direction of the utility pole;
A nest prevention device for a telephone pole, comprising a fixing plate extending from a part of the repellent plate to the tightening piece of the mounting band and fastened together with the band piece by the bolt. The repellent plate includes a first repellent plate that crosses approximately the center of the tip surface of the utility pole;
a pair of second repellent plates that are perpendicular to the first repellent plate and face each other with a space therebetween;
The nest prevention tool for utility poles according to claim 1, wherein the fixing plate is continuous with one end of the second repellent plate and extends alternately to the tightening pieces of the mounting band. The first repellent plate includes a vertical slit cut from the upper edge or the lower edge,
One of the second repellent plates is joined to the first repellent plate,
The other second repellent plate is provided with a vertical slit cut from the lower edge or the upper edge corresponding to the slit of the first repellent plate, and is configured to intersect with the first repellent plate through the mutual slits. The nest prevention device for utility poles according to claim 2, characterized in that the device engages with the nesting prevention device. 4. The nest prevention tool for utility poles according to claim 1, wherein the fixing plate is provided with a vertical elongated hole for position adjustment through which the bolt passes. 5. The nest prevention device for utility poles according to claim 1, wherein the repellent plate is provided with a plurality of ventilation holes for reducing horizontal wind pressure loads.

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