JP3153966U - Small animal intrusion protection fence - Google Patents

Abstract

[PROBLEMS] In recent years, there are many reports that pupae (small animals) frequently appear in poultry farms, private houses, highways, and the like. Therefore, an intrusion protection fence for small animals such as sharks is provided that has good preventive power, low cost, good workability, and few members. A light metal pipe, which is a substantially cylindrical object having a substantially circular cross section and a diameter of 10 cm or more, is attached to a metal band at the upper end of an outside protection fence (a small animal intrusion side) stretched by a cross or a wire mesh. Or, add additional binding with wire. A resin pipe and a resin band may be used. [Selection] Figure 1

Description

  The present invention relates to an intrusion protection fence for preventing the invasion and crossing of small animals such as moths on highways and avoiding traffic accidents.

  An on-road protection fence is installed to prohibit the entry of people, pedestrians, and bicycles as an automobile-only road that occupies the expressway. Due to the major construction extension of the mileage of the expressway, there has been a recent increase in the number of small animals getting over the entry protection fence due to the blockage of the beast road, human life damage due to traffic accidents caused by the invasion of small animals Damage to road structures is regarded as a problem. As in Patent Document 1, a protective fence that prevents an animal from entering by proposing an electric wire over a plurality of piles standing on the ground has been proposed, but is expensive.

JP 2003-158986 A

In conventional on-line protection fences installed to prohibit entry of people, pedestrians, and bicycles, small animals such as cages can be protected even if the gap between the protection fences is small or a wire mesh is stretched. There is a problem of climbing the road and entering the expressway.
The challenges for providing a new entry guard to prevent small animals from entering the highway across the mountain are as follows.
1) Even if a rail or wire mesh is installed on the fence to prevent entry of small animals so that there are no gaps, the small animal climbs the rail and wire mesh and enters the expressway.
2) It is necessary to completely replace the existing entry protection fences that have already been laid.
3) The high frequency of invasion of small animals on the expressway is especially on roads that cross the mountainous area. In the wilderness, like the beast road, there are many sites where vehicles are not allowed to pass or are not allowed to pass.
4) Cars and heavy machinery cannot be carried in, and there is no work power supply
5) The mountainous region is expected to snow in winter due to the climatic conditions, and it is required to reinforce the strength in consideration of the snow load.

The following is the verification experiment and construction method that led to the present invention.
1) Confirmation of behavior and behavior of scissors by verification experiment A scissors to be observed by putting a scissors with a wire mesh and a plywood board was made, and a round metal tube (diameter of 10 cm with a pipe or the like) was fixed to the top with a band or wire. When I put food on the top and the outside of the wire mesh and observed it, I started climbing the wire mesh easily. The kite can move the forefoot claws with the mesh of the forefoot where the wire mesh intersects, and can climb the wire mesh. When reaching the upper pipe, the nail cannot function because the surface of the pipe is smooth and hard. So, when I installed a metal pipe (diameter 10cm) on the upper part of the wire mesh fence, I climbed up.

2) Construction method The requirements for constructing a highway entrance fence in mountainous areas are as follows.
(A) Work under unfavorable conditions, (b) Weight reduction of pipes, (C) Weight reduction of attachment tools and jigs, (d) Shortening of reinforcing steel materials for pipes and struts mainly in human work.

  From the above verification experiment and examination of the construction method, a substantially cylindrical object having a substantially circular cross section made of metal or resin is attached to the upper end of an entrance protection fence composed of an existing beam or wire mesh. Even if a small animal tries to climb the wire net, it is a substantially cylindrical object provided at the upper end, and it is dropped when the claw slides to provide a small animal intrusion protection fence that prevents the entry of the fence over the fence.

Prohibiting the entry of small animals on highways has the following effects.
1) Prevention of vehicle accidents by avoiding collision of small animals.
2) Suppression of human life damage due to vehicles and vehicles, vehicle rollovers, and road structure collisions.
3) Significant reduction in construction costs on expressways with long construction extensions with small material costs and installation costs.

Small animal intrusion protection fence of the present invention Small animal intrusion protection fence applying the present invention to existing wire mesh fence (using angle steel) Small animal intrusion protection fence applying the present invention to existing wire mesh fence (using steel pipe)

  FIG. 1 shows the structure of a small animal approach guard fence in which the present invention is applied to an existing guard fence. FIG. 1 (a) is a side view, and FIG. 1 (b) is a front view as seen from the entry side (outside) of a small animal. At the upper end of the existing wire mesh fence, a light metal pipe 1, which is a substantially cylindrical object having a substantially circular cross section and a diameter of 10 cm or more, is bound with a metal band 2 or a wire 3 and attached. Yes.

  FIG. 2 shows a metal pipe 1 made of light metal, which is a substantially cylindrical object having a substantially circular cross section and a diameter of 10 cm or more, on the intrusion side of a small animal at the upper end of an angle wire (4 cm or more). This is an embodiment in which the band 2 or wire 3 is bound and attached.

Fig. 3 shows a metal pipe with a lightweight metal pipe 1 which is a substantially cylindrical object having a substantially circular cross section and a diameter of 10 cm or more on the invasion side of a small animal at the upper end of a steel pipe (2 cm or more). This is an embodiment in which the band 2 or the wire 3 is bound and attached.
The light metal pipe 1 and the metal band 2 in the first embodiment and the second embodiment may be replaced with a resin pipe and a resin band of 10 cm or more in which a small animal's claws are easy to slide.

  In particular, rapid braking due to invasion of small animals on a highway traveling at high speed, rear-end collision of a vehicle by sudden handle operation, vehicle fall, and prevention of traffic accidents due to collision with a road structure are eager. The present invention can prevent the loss of human lives and the destruction of vehicles and road structures due to these events caused by small animals.

1 Light metal pipe 2 Metal band 3 Wire

Claims (2)

  A lightweight metal pipe with a substantially circular cross section and a diameter of 10 cm or more is bound with a metal band or wire at the upper end of the outer fence (intrusion side for small animals) on a fence or wire mesh. A small animal intrusion prevention fence to be additionally constructed. At the upper end of the outside fence (the invasion side of the small animal) with a cross or wire mesh, a resin pipe, which is a substantially cylindrical object with a cross-section of approximately circular shape and a diameter of 10 cm or more, is additionally bound with a resin band. Small animal intrusion prevention fence.

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