JP5495451B2 - Falling animal capture device - Google Patents

Description

  The present invention relates to an apparatus for capturing animals (harmful animals) such as deer and moths that cause damage to agriculture and forestry.

In recent years, agricultural and forestry damage caused by pests has been seen nationwide, and the damage continues to expand and has become a social problem. For this reason, the installation of beast harm prevention fences is actively promoted regardless of the public and private sectors, and efforts are being made to prevent damage.
In addition, due to changes in the habitat of pests due to changes in the natural environment due to overexploitation, abnormal weather, and an increase in abandoned cultivated land, an unexpected increase in the abnormal number of solids has been observed, and capture and extermination are also active. It has become a situation that must proceed.

Conventionally, methods using hunting guns, fences, and box traps have been generally used for capture and extermination. However, the number of people with licenses for hunting guns has decreased significantly due to stricter restrictions on possession. In addition, it is rare to capture multiple animals at once from the form and the precautions of harmful animals, even by the method using a fence or box trap, which is not very efficient.
For this reason, a net dropping type capture method has been considered as a method that does not give alertness without interrupting the vision of the pests, and a method that captures multiple animals at once.
The one shown in Patent Document 1 reliably supports a large capture net and can be dropped in a timely manner, and the one shown in Patent Document 2 is a simple animal trap that can suitably capture an animal. The device shown in Patent Document 3 is a harmful animal capture device in which a frame is suspended above a path of harmful animals, and when an animal comes to the place, a sensor detects the frame and drops the frame.

Utility Model Registration No. 3163272 Utility Model Registration No. 3171225 JP 2009-112247 A

Animals are confirmed to be safe by sight and smell. For this reason, it is difficult to get close to fences and box traps.
For this reason, a net dropping type capture method that does not block the field of view is considered.
However, since capture devices installed outdoors are in a harsh natural environment, problems are likely to occur in various places. That is, not only exposure to wind and rain, ultraviolet rays, and snowfall, but also operation failure may occur due to corrosion of members and adhesion of dust.
In addition, the influence of the wind at the time of capture (when the net is dropped) is also large, the capture net does not fall vertically to a predetermined position and the capture is missed, and there are many fixed points of the capture net, so the timing of unlocking is timely It has been reported that missed captures were not made.
The present invention has been made in view of the above points, and an object thereof is to provide a simple structure that is less likely to cause malfunction and has a high capture efficiency.

In order to achieve the above-mentioned object, the present invention is capable of moving up and down to the corner column and the center column, the corner column standing at the polygonal corner position, the center column standing at the substantially central position between the corner columns, The elevating guide arranged, the connecting rope stretched between the elevating guide of the corner column and the elevating guide of the center column, and the capture net stretched between each elevating guide and the connecting rope so as to face the ground And a means for lifting the capture net on the center support, a fixing means for fixing the capture net lifted on the center support to the upper part, and a release means for releasing the fixed state constitute a fall-type animal capture device.

In principle, the planar shape is a quadrangle, but it may be a polygon suitable for the installation location. Note that the present invention is based on operation as a movable structure that can easily move the installation place by changing the column, and consideration has been given to minimizing the number of components of the apparatus.

Since the important structure in the present invention, that is, the raising / lowering drive function of the falling trapping net is concentrated in one place of the center support column, it is only necessary to focus and manage the drive device, and the maintenance management becomes easy.
That is, the structure of the present invention is because other structures follow the behavior of the lifting device and the center column lifting guide.
Since there is a gap between the center column and the center column raising / lowering guide, the center column lifting / lowering guide falls by gravity if the fixing by the lifting device is released. Further, the corner column lifting guide has a roller structure, and moves up and down by a pulling force (sliding resistance is very small because it has a roller) and gravity fall by being coupled with a center column lifting guide and a connecting rope.
In addition, since the center support | pillar raising / lowering guide and the corner support | pillar raising / lowering guide are simple structures as shown in figure, a malfunction does not arise.

The fall-type capture net is attached to each column so that it can be raised and lowered, so that it can be dropped vertically to a specified position regardless of the influence of the wind, and the corner column can be raised and lowered by adjusting the lifting height according to the installation environment. Since the height of the guide, that is, the outer peripheral height of the capture net can be freely set by changing the combination of the connecting ropes, it is a structure that can reduce the alertness of the animal and increase the capture efficiency.
In addition, as long as the captured net is not damaged by the captured pests, it can be re-installed only by raising and lowering the captured net, and the work efficiency is excellent.

From the viewpoint of structural mechanics, the bending moment acting on the strut is smaller in the structural type of the present invention than in the conventional method in which the self-supporting strut is disposed only on the outer periphery of the polygon and the capture net is supported. That is, because the center column is arranged at the center position of the polygon and the center column and the corner column are coupled by the coupling rope, the mounted load (net weight, snow accumulation, etc.) acts on the column as a vertical load.
This leads to a reduction in the number of supports, which is economical, and also widens the frontage, eliminates the feeling of pressure and diminishes the alertness of animals, making it easier to approach.

It is a perspective view which shows the general | schematic figure of one Embodiment in this invention. It is a top view of one Embodiment shown in FIG. It is a detailed top view of the raising / lowering guide in the center support | pillar part and corner support | pillar part shown in FIG. It is a detailed side view of the raising / lowering guide in the center support | pillar part and corner support | pillar part shown in FIG. It is detail drawing of a connection rope. The lifting device is shown, (a) is a side view showing a situation where it is lifted to the upper end of the center column, and (b) is a plan view. FIG. 7 is a side view illustrating the lifting device and the center column lifting guide, as viewed from the left side of FIG. (A) is the situation where the capture net is on the ground, (b) is the situation where the capture net lifted to the ground by the lifting device is fixed in place, (c) is harmful (D) is a conceptual diagram showing a situation where a beast has entered the lower part of the capture net, the lifting device and the capture net are separated and dropped, and (d) is a situation where the capture net has fallen and captured the beast.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

The trapping method using the falling trapping net takes the safety confirmation behavior of the animal visually, and it is necessary to provide a large space below the trapping net.
For this reason, a support | pillar is needed as a site | part which supports a capture net in the air.
The planar shape in the embodiment shown in FIG. 1 is a quadrangle, and pillars are erected at four corners and one central position.

As a method for standing upright, there are a placement method and a method of prior drilling and construction, and it is necessary to select the method based on the length of the support, the ground condition, and the construction environment.
Since the horizontal force acts on the support column when lifting the capture net in the air, the support column must be a member that can withstand this. In addition, there is a case where it is necessary to secure sufficient rooting, solidify, or the like so that the fixed point (ground surface) is not displaced.

The side length of the quadrangle in the embodiment is about 20 m, the height of the ground surface and the outer periphery of the capture net is about 2 m, the column is a steel tube column, the center column 1 has an outer diameter of about 60 mm, and the corner column 2 has an outer diameter of about 50 mm. The capture net 8 is made of reinforced stainless steel wire. Note that the present invention is based on operation as a movable structure that can be easily moved in an installation place, and is constituted by a member that can be applied to a quadrangular side length of about 10 to 20 m. The struts are replaced, and the excess capture net is handled by winding.

FIG. 2 shows a planar shape of the embodiment. As shown in FIG. 7, a lifting device 5 is attached to the center column 1 and a center column lifting guide 3 is attached to the lower column.
A corner column lifting guide 4 is attached to the corner column 2.
Since the center column lifting guide 3 and the corner column lifting guide 4 are coupled by the connecting rope 6, if the center column lifting guide 3 is lifted, the corner column lifting guide 4 is also lifted.
The reason why the center column 1 is erected at the center position of the polygon is to evenly distribute the traction force (horizontal component of tension) acting on the corner column 2 during lifting.
The connecting rope 6 is configured by combining ropes 7 having various lengths with hooks at both ends.

3 and 4 show details of the center column lifting guide 3 and the corner column lifting guide 4.
The material of the center column raising / lowering guide 3 is an iron plate and is processed so as to ensure a predetermined gap with respect to the outer diameter of the center column 1. This clearance is important in order to ensure a sufficient value so as not to cause a malfunction due to contact with the support column when the capture net 8 is dropped, and to smoothly drop.
As shown in the figure, the corner column raising / lowering guide 4 has a roller so that the sliding resistance is small, and easily follows the movement of the center column raising / lowering guide 3. In addition, as for the diameter of the roller, a product that matches the outer diameter of the corner column 2 is selected and adopted.
The catch net 8 is stretched above the connecting rope 6.

FIG. 5 shows the details of the connecting rope 6.
The material of the connecting rope is a high-tensile glass fiber, which is strong and light, does not generate elongation or rust, and has excellent weather resistance.
The purpose of using this connecting rope is to consider that it is a structure installed in a harsh natural environment and that it is an important member for supporting the capture net and maintaining the lifting function.

As shown in FIG. 5, this connecting rope is characterized in that it has a predetermined length by combining various lengths with hooks at both ends (detaching the hook).
As a result, when the length of the connecting rope 6 required as a result of relocation is changed, a predetermined length can be obtained simply by changing the combination, processing becomes unnecessary, and loss due to cutting can be eliminated. In addition, it is possible to easily adjust the tension of the catch net and restore the net after catching the animal.
The catch net 8 is attached to the connecting rope 6 with a binding rope, a binding band or the like.

6 and 7 show the details of the lifting device 5.
The lifting device 5 is for lifting the center column lifting guide 3 and is connected to the winding device 12 by a lifting rope 10 disposed inside the column, and is lifted by operating the lifting device 12. . A pulley 11 is arranged at the bending point of the lifting rope 10 to ensure a smooth operation.
The material of the lifting device 5 is an iron plate and is processed so as to ensure a predetermined gap with respect to the outer diameter of the center column 1. Further, an electromagnetic magnet 9 is attached to the lifting device 5, and the center column lifting guide 3 is attracted by this magnetic force and lifted to a predetermined position. At this time, the corner column lifting guide 4 is also lifted because it is coupled by the connecting rope 6.
If this magnetic force is demagnetized at an appropriate time for capturing, the center column lifting guide 3 falls together with the corner column lifting guide 4 by gravity.
An upper stopper 14 for preventing the lifting device 5 from being detached is attached to the upper part of the center column 1, and a lower stopper 15 is attached to the lower part to prevent the center column lifting guide 3 from dropping.
An electric wire 16 for operating the electromagnetic magnet 9 is disposed inside the support column.

The electromagnetic magnet 9 includes a permanent magnet and an electromagnetic magnet coil, which are normally attracted by the permanent magnet and energized through the magnet coil, thereby generating a demagnetization magnetic force generated outside the magnet. There is a type in which the magnet is interrupted, a demagnetizing type in which the magnet is magnetized and becomes a permanent magnet once energized, and the permanent magnet is demagnetized and interrupts the magnetic force when energized again.
By using these permanent electromagnetic magnets, power consumption can be minimized.

The timely monitoring of capture includes an artificial method, an infrared camera method, and a detection sensor method.
The appearance of animals varies depending on the type, local environment, season, etc., but the alertness fades at night. For this reason, on-site monitoring by humans is often difficult and equipment monitoring by the monitoring device 13 is often performed.

In recent years, remote monitoring using solenoid actuators, Wi-Fi, etc., remote control technology, and technology that can automatically switch the switch according to the output of the sensor, etc. have been remarkably developed. The monitoring method shall be determined appropriately according to the situation at the installation site. If a monitoring hut is provided and operation devices such as the hoisting device 12 and the monitoring device 13 are gathered in one place, the management can be efficiently performed.

FIG. 8 is a conceptual diagram showing the point of capture, (a) is the situation where the capture net is on the ground, (b) is the situation where the capture net lifted to the ground by the lifting device is fixed in place, (C) shows the situation where a pest invades the lower part of the capture net, the lifting device and the capture net (elevating guide) are separated and dropped, and (d) shows the situation where the capture net has fallen and captured the pest. is there.

The falling pest capturing apparatus of the present invention has a relatively simple structure as compared with a conventional falling capture apparatus of the same scale. This is because the lifting / lowering drive function of the fall-type capture net is integrated in one place of the center support column, and the wire rope is used as a frame member for attaching the capture net.
According to the conventional example, since the capture net is supported by the multi-posts, there is a feeling of pressure and the structure is difficult for the pests to approach, but according to the present invention, the frontage becomes large and the alertness of the pests is diminished.
There are no special components except for devices related to electromagnetic magnets and devices related to monitoring, and the falling pest capturing device of the present invention that can be constructed with general market distribution products is excellent in economy, workability, maintenance management, etc. It can also be expected to capture multiple pests, increasing cost effectiveness.

1: Center column 2: Corner column 3: Center column lifting guide 4: Corner column lifting guide 5: Lifting device 6: Connecting rope 7: Rope having various lengths with hooks at both ends 8: Trap net 9: Electromagnetic magnet
10: Lifting rope
11: Pulley
12: Winding device
13: Monitoring device
14: Upper stopper
15: Lower stopper
16: Electric wire

Claims (2)

A drop-type animal capture device installed on the ground, including a corner post that is erected at a polygonal corner position, a center post that is erected at a substantially central position between each corner post, and each corner post and center post. Elevating guides arranged so as to be capable of ascending and descending, connecting ropes stretched between the elevating guides of the corner columns and the elevating guides of the center columns, and the elevating guides and connecting ropes so as to face the ground. Drop type characterized in that it has a catching net, means for lifting the catching net on the center column, fixing means for fixing the catching net lifted on the center column to the upper part, and release means for releasing this fixed state Animal capture device. 2. The falling animal capturing apparatus according to claim 1, wherein the connecting rope is configured by combining ropes having various lengths with hooks at both ends.