JP2001078648A - Beast net - Google Patents

Abstract

(57) [Problem] To provide a beast net that can prevent invasion of not only large animals but also small animals, is less affected by wind, and is inexpensive. SOLUTION: This is a fiber net which is stretched around an agricultural land, a forest, or the like to prevent the invasion of beasts. To form a fine mesh in the part to be
The ratio between the size of the coarse mesh and the size of the fine mesh is 1/8 to 1/2 in area ratio, and the ratio of the vertical height of the coarse mesh portion to the fine mesh portion is 9: 1 to 5: 5.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a beast control net for preventing invasion of beasts into agricultural lands, forests and the like.

[0002]

2. Description of the Related Art In recent years, the living sphere of humans has extended to places where animals were originally living. In addition, animals of such species breed too much to protect wild animals such as deer, and damage to crops, forests, etc. due to animal food shortage has increased,
Animal damage from wild animals is now a social problem. In order to prevent such animal damage, wire fences or fiber nets are generally used. In particular, a net made of fiber or the like can be easily constructed and a cost lower than that of a wire net, so such a net is widely used.

[0003] As such a net, a net made of synthetic fibers, a net in which a metal wire is incorporated into synthetic fibers to improve the strength, and a net in which an electrically conductive material such as metal is incorporated so as to be able to conduct electricity is known. However, each of these uses is divided into large animals such as deer and boar, and small animals such as rabbits, squirrels and white nose hearts. This is because the strength of the net and the size of the mesh are different for each application. Certainly, if you use a net with a fine mesh and high strength, you can target small animals to large animals. However, making the mesh fine not only increases the cost of the net itself, but also makes it necessary to increase the height when targeting large animals, so in that case, if the mesh is made fine, it becomes susceptible to the wind,
For this reason, it is necessary to make the columns and the like robust, and eventually, incidental costs such as equipment and construction costs also become high.

[0004]

Therefore, in practice, in a place where relatively large animals appear and disappear, a net having a large mesh is stretched around. However, in this case, small animals pass through the mesh of the net. And often infiltrate agricultural land. Therefore, the present invention has been made to solve such a problem, and can prevent the invasion of not only large animals but also small animals, is less affected by wind, and is inexpensive. It is an object to provide a safe beast net.

[0005]

SUMMARY OF THE INVENTION The present invention, which solves such a problem, is a fiber net which is stretched around farmland, forests, etc. to prevent the invasion of beasts. Form the part to be the upper part of the direction into a coarse mesh,
A portion to be a lower portion in the vertical direction is formed into a fine mesh, and a ratio between the size of the coarse mesh and the size of the fine mesh is 1/8 to 1/2 in terms of an area ratio. The ratio of the vertical height of the mesh portion is 9: 1.
5: 5, a fiber net for preventing beasts from penetrating around agricultural land, forests, etc., and being installed on the ground. In this case, a portion to be formed in the vertical direction is formed into a coarse mesh, a portion to be formed in the vertical direction is formed into a fine mesh, and the ratio of the size of the coarse mesh to the size of the fine mesh is 1 in area ratio. / 8 to 1/2, and the ratio of the vertical height of the coarse mesh portion to the fine mesh portion is 9: 1 to 5: 5, and the ground is from the lower end of the fine mesh portion to the ground. The part of the beast crawling on the ground, the size of the mesh of the part to be crawled on the ground is the same as or smaller than the size of the mesh of the fine mesh part, 2 invention).

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
First, in the first invention, a portion to be made vertically upper when formed on the ground is formed into a coarse mesh, and a portion to be made vertically lower is formed into a fine mesh. And the size of the fine mesh is 1/8 to 1/2 in area ratio, preferably 1/4 to 1/2.
It is. If this ratio is less than 1/8, the size of the fine mesh becomes too small, which only increases the cost,
Compared with / 8 or more, the effect of preventing small animals from invading is not particularly changed. On the other hand, when this ratio exceeds 1/2, the effect of preventing small animals from invading is reduced.

The ratio of the vertical height between the coarse mesh portion and the fine mesh portion is 9: 1 to 5: 5. If this ratio is less than 9: 1, the height of the fine mesh portion is insufficient and small animals may enter, and the strength of the net when the above-mentioned large animals try to enter is sufficiently increased. It may not be possible to secure. on the other hand,
If this ratio exceeds 5: 5, the height of the coarse mesh portion becomes too small, and the mesh portion is easily affected by wind resistance.

[0008] Next, a second invention is the first invention, wherein the portion to be crawled on the ground is extended from the lower end of the portion to be made vertically lower, and the mesh of the crawled portion on the ground is extended. Is the same as or smaller than the mesh size of the portion to be the lower part in the vertical direction, that is, the fine mesh portion. Normally, it is preferable to knit the portion that should be the lower part in the vertical direction by a length corresponding to the portion that crawls on the ground, and to make that portion a portion that crawls on the ground. When the mesh of the portion to be crawled on the ground is made finer than the mesh of the fine mesh to be the lower part in the vertical direction, such a mesh is formed continuously to the fine mesh to be the lower part in the vertical direction. The length of the portion that crawls on the ground is preferably about 30 cm to 1.5 m when targeting a wild boar or a deer.

[0009] As described above, if the portion to be crawled on the ground is a finer mesh than the above coarse mesh portion, an animal that does not like to have its feet entangled in a net or the like is more likely to be entangled by the fine mesh. So it is more effective. The beast proof net of the present invention is obtained by knitting a fiber. The net is preferably knitted into a Russell net, but may be knitted into a knotless net or a knotted net.

The size of the mesh of the coarse mesh portion constituting the net, that is, the mesh size, is 35 mm to 20 mm on one side.
Those having a length of 0 mm are preferred. Further, in consideration of the strength and the like, the thickness of the yarn forming the net is preferably, for example, a polyethylene having a total denier of about 12,000 to 60,000 denier.
A yarn of 600, 1200 denier or the like is combined to have the above-mentioned thickness. Furthermore, the material of the yarn that composes the net is
Synthetic fibers such as polyethylene, polypropylene, polyamide, and polyester are preferred, and these are used in the form of a ply or a single yarn. Since the beast net of the present invention is installed outdoors, polyethylene is particularly preferable in consideration of weather resistance and the like. Furthermore, in order to increase the strength of the net, a high-strength synthetic fiber such as a metal wire such as stainless steel, carbon fiber, or aramid fiber may be combined with the above-described synthetic fiber and used.

An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the beast control net 1 is stretched around agricultural land and forests to prevent large animals such as deer and boars and small animals such as rabbits, squirrels and white nose from entering these areas. This is a net for prevention, and is supported in a vertical direction by a pillar 2 erected on the ground. In this beast prevention net 1, a coarse mesh portion a and a fine mesh portion b are integrally formed by Russell knitting from synthetic fibers such as polyethylene yarn, and the coarse mesh portion a is disposed at the upper part in the vertical direction. The mesh part b is arranged at the lower part in the vertical direction.

A vertical part of the beast control net 1 shown in FIG. 2 is formed in the same manner as the net of FIG. 1, and a part c to be laid on the ground extends from a lower end of the vertical part. The extension length of the part c to be crawled on the ground is 30 cm to 1.5 m
The degree is preferred. When the part c to be crawled on the ground is formed in this way, when a wild boar or a deer approaches the net 1 and tries to invade the net 1 to reach the part c to be crawled on the ground, the legs of these animals are finely meshed. Are easily entangled, making it difficult for these animals to approach the net.

Next, an example of a mesh structure of the beast control net of the present invention will be described with reference to FIGS. In FIG. 3, the mesh constituting the coarse mesh portion a has a substantially rhombic shape formed by four mutually intersecting mesh yarns, and the mesh constituting the fine mesh portion b is formed by the rhombus. A portion in which one net thread is inserted in a left-upward direction between the meshes and a portion in which one net thread is inserted in a right-upward direction are alternately formed. The mesh area of the fine mesh portion b is ｂ of the mesh area of the coarse mesh portion a.

In FIG. 4, the mesh constituting the fine mesh portion b is formed by inserting one net thread between the above-mentioned rhombic meshes in the upward direction and forming a fine mesh portion b. The area of the mesh is 1 of the area of the mesh of the coarse mesh portion a.
/ 2. In FIG. 5, the mesh constituting the fine mesh portion b is formed by inserting one net thread connecting the vertexes of the rhombus facing each other between the above-mentioned rhombic meshes. Is half the area of the mesh of the coarse mesh portion a.

In FIG. 6, the mesh constituting the fine mesh portion b is formed by inserting a net rising to the right and a net rising to the left between the diamond-shaped meshes. The area of the mesh of the portion b is １ ／ of the area of the mesh of the portion a of the coarse mesh. In FIG. 7, the mesh constituting the fine mesh portion b is formed by inserting two left-up netting yarns between the rhombic meshes, and the mesh area of the fine mesh portion b is coarse. It is 1/3 of the mesh area of the mesh portion a.

In FIG. 8, a portion in which two net yarns are inserted in the upward direction and a portion in which two net yarns are inserted in the right upward direction are alternately arranged between the diamond-shaped meshes. The mesh area of the fine mesh portion b is 1/3 of the mesh area of the coarse mesh portion a. Of the mesh configurations of FIGS. 3 to 8 described above, as shown in FIG. 3 or 8, if the shapes of the meshes constituting the fine mesh portion b are alternately arranged, it is difficult for animals to invade,
More preferred.

EXAMPLES Example 1 Adjacent two sides of 100 mm and 100 mm by Russell knitting using 60 400 denier polyethylene yarns.
It has a portion having a coarse mesh of mm and a portion having a fine mesh of two adjacent sides of 100 mm and 50 mm in length, and has a mesh size and a fine mesh of a portion having a coarse mesh. Area ratio of the mesh size of the part is 2:
1. A beast-proof net having a length (height) of 2 m, a width (length) of 50 m, a portion having a coarse mesh in the length (height) direction of 1.4 m, and a portion having a fine mesh of 0.6 m was produced. When this net was placed on the ground as shown in FIG. 1, the struts did not tilt due to the wind, and animal hair was attached to the net, but no damage to the net was observed. Example 2 Adjacent two sides of 100 mm and 100 mm by Russell knitting using 60 400 denier polyethylene yarns.
It has a portion having a coarse mesh of mm and a portion having a fine mesh of two adjacent sides of 100 mm and 50 mm in length, and has a mesh size and a fine mesh of a portion having a coarse mesh. Area ratio of the mesh size of the part is 2:
1. A vertical (height) 2 m, a horizontal (length) 50 m, a portion having a coarse mesh in the vertical (height) direction is 1.4 m, a portion having a fine mesh is 0.6 m, and the fine mesh is A beast control net having the same structure as the portion having the same structure and having a portion of 0.5 m on the ground was manufactured. When this net was installed on the ground as shown in FIG. 2, no struts were tilted by the wind, and no abnormalities were recognized except for the footprints of the animals on the crawling part.

[0018]

As described above, according to the beast control net of the first invention of the present invention, not only large animals but also small animals can be prevented from entering, and the props can be tilted or fall down under the influence of wind. And the cost is low. Further, according to the beast control net of the second invention of the present invention, in addition, it is possible to prevent animals from approaching the net.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a beast control net of the present invention.

FIG. 2 is a perspective view showing another embodiment of the beast control net.

FIG. 3 is a plan view showing a mesh structure of the beast control net.

FIG. 4 is a plan view showing a mesh structure of the beast control net.

FIG. 5 is a plan view showing a mesh structure of the beast control net.

FIG. 6 is a plan view showing a mesh structure of the beast control net.

FIG. 7 is a plan view showing a mesh structure of the beast control net.

FIG. 8 is a plan view showing a mesh structure of the beast control net.

[Explanation of symbols]

 1 Beast net 2 Prop a Coarse mesh part b Fine mesh part c Crawling part on the ground

Claims (3)

[Claims] 1. A fiber net which is stretched around an agricultural land, a forest, or the like to prevent the invasion of beasts. Form the part to be the lower part into a fine mesh,
The ratio between the size of the coarse mesh and the size of the fine mesh is 1/8 to 1/2 in area ratio, and the ratio of the vertical height of the coarse mesh portion to the fine mesh portion is 9: 1 to 5: 5. 2. The animal net according to claim 1, wherein the ratio of the size of the coarse mesh to the size of the fine mesh is 1/4 to 1/2 in area ratio. 3. A fiber net which is stretched around an agricultural land, a forest, or the like to prevent the invasion of beasts. Form the part to be the lower part into a fine mesh,
The ratio between the size of the coarse mesh and the size of the fine mesh is 1/8 to 1/2 in area ratio, and the ratio of the vertical height of the coarse mesh portion to the fine mesh portion is 9: 1 to 5: 5, and a portion to be crawled on the ground is extended from a lower end portion of the fine mesh portion, and the size of the mesh to be crawled on the ground is the same as the size of the fine mesh portion. A beast net that is the same or finer.