Enclosing trap

Abstract

To prevent a captured harmful animal from escaping from an upper surface in an enclosing trap having the upper surface opened.SOLUTION: An enclosing trap includes: a bare wire 3 provided in an upper part of an opening 2 of an upper surface of a body 1 so as to surround the opening 2 when viewed from an upper surface direction; a power supply circuit 5 that continuously supplies a high voltage to the bare wire 3; and a load detection mechanism 41 that detects a load generated in the bare wire 3. The bare wire 3 has one end connected to the power supply circuit 5 and the other end connected to the ground 6. A first support rod 34a and a second support rod 34b arranged so as to face each other along a pole 2c each have a through hole 35 in a side part thereof, and perform support through the bare wire 3. The power supply circuit 5 described above supplies a high voltage to the bare wire 3 for predetermined time when a load is generated due to an animal 7 that attempts to escape from the opening 2 in the upper surface.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to an enclosure trap for capturing animals such as pests.

Background Art

[0002] Conventionally, box traps have been used to capture pests that damage crops and the like. However, using a box trap requires a hunting license, which makes it difficult for ordinary farmers to use.

[0003] On the other hand, for an enclosure trap with an open upper surface of the main body, that is, an enclosure trap with an opening at a predetermined ratio on the ceiling surface, it can be used without obtaining a strict hunting license if certain requirements are met, and it is expected to spread particularly for farmers to prevent damage from wild animals.

[0004] On the other hand, in an enclosure trap, once captured animals may climb up the side surface of the enclosure trap and escape from the open upper surface opening, and there is a problem with its effectiveness.

[0005] Therefore, in Patent Document 1, an enclosure trap is proposed in which a "return" that slopes from the upper end of the side surface of the enclosure trap toward the central portion is provided, and further, the return is energized to form an electric fence to attempt to capture an escaping animal by electrocuting it.

[0006] However, in the enclosure trap described in Patent Document 1, the return is ineffective against animals that can climb over the fence, and a relatively high voltage needs to be continuously applied to electrocute the animals with the electric fence, which is particularly problematic in terms of safety and power waste.

Prior Art Documents

Patent Documents

[0007]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0008] This invention provides an enclosure trap with an open ceiling that can reliably prevent captured animals from escaping, and is safe and can prevent power waste.

Means for Solving the Problems

[0009] The enclosure trap according to the present invention is an enclosure trap having an opening on the upper surface, and includes a bare wire provided above the opening so as to surround the opening when viewed from the upper surface direction, a power supply circuit that continuously supplies a high voltage to the bare wire, and a load detection mechanism that detects a load generated in the bare wire. One end of the bare wire is connected to the power supply circuit and the other end is grounded, and the power supply circuit supplies the high voltage when a load is generated from the outside in the bare wire.

[0010] Further, a plurality of the bare wires are provided at a predetermined interval in the upward direction of the enclosure trap, and the plurality of bare wires are electrically connected alternately. When a load is generated from the outside in any one of the bare wires, a high voltage is continuously supplied to the connected bare wires.

[0011] Further, the load detection mechanism is either a spring switch that mechanically opens and closes contacts by the tension generated in the bare wire or a sensor mechanism that detects the tension of the bare wire and converts it into an electrical signal.

[0012] Furthermore, the power supply circuit includes a timer that continuously supplies a high voltage for a preset time when a load is generated from the outside in the bare wire.

[0013] Furthermore, a plurality of columns are provided on the upper surface of the enclosure trap, and the bare wire is fixed to the plurality of columns so as to surround the opening of the enclosure trap via an insulating support rod or insulator connected to the load detection device.

[0014] In addition, a plurality of insulating columns are provided on the upper surface of the surrounding trap, and the bare wire is fixed to the insulating columns so as to surround the opening of the surrounding trap. Furthermore, the high voltage is made to be alternating current or pulsed.

Advantages of the Invention

[0015] When an animal attempting to escape touches the bare wire in the surrounding trap according to the present invention, a high voltage flows for a predetermined time, causing the animal to be temporarily paralyzed and unable to escape.

[0016] Also, since the above current flows only when an animal touches the bare wire and applies a load, it is safe and has the effect of saving power consumption.

[0017] Furthermore, since the above current is a high voltage, it has a long effective range distance and can also give an impact to animals with thick fur. On the other hand, since it is energized within a predetermined time, it is a non-fatal impact and even if a person accidentally touches it, it will not lead to a major accident.

[0018] Also, a plurality of stages of bare wires are installed upward in the surrounding trap and are alternately electrically connected. For this reason, when an animal touches both adjacent bare wires, a high voltage flows between the wires through the animal, and there is an effect of giving a more effective electric shock to the animal to prevent escape.

[0019] Furthermore, although the current used is a high voltage, it is energized within a predetermined time, and by using an alternating current or a pulsed current, it becomes easier to comply with regulations, and there is an effect that contributes to the convenience of general agricultural workers.

Brief Description of the Drawings

[0020]

Figure 1

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Mode for Carrying Out the Invention

Examples

[0021] Hereinafter, Example 1, which is an example of a mode for carrying out this invention, will be described with reference to the drawings. In FIG. 1, 1 is an enclosure trap body made of metal, 2 is an opening on the upper surface of the enclosure trap body, 2c are metal columns provided at the four corners of the enclosure trap body 1, 3 is a bare wire, 31 is a connection wire for connecting the bare wires 3 in series, and 32 is a signal wire for load detection. Further, 34a and 34b are first and second support rods arranged to face each other along the column 2c, and each has a through hole 35 for supporting the bare wire 3 through the side portion. Note that an insulating material such as vinyl chloride is used for the materials of the first and second support rods 34a and 34b. Also, a plurality of stages of bare wires 3 are provided upward, and in this embodiment, a case of four stages is shown, but it can be increased or decreased depending on the type of animal targeted and the size of the trap body.

[0022] 41 is a load detection mechanism that supports the first support rod 34a on the support column 2c and is electrically connected to the load detection signal line 32. In this embodiment, a spring switch is used. Note that a plurality of load detection mechanisms 41 are provided corresponding to the number of stages of the bare wire 3 with respect to the first support rod 34a in this embodiment, but one may be sufficient. On the other hand, 42 is a fixing member that fixes the second support rod 34b to the support column 2c. 5 is a power supply circuit, 5a is a first electrode, 5b is a second electrode, 6 is a ground (earth), and 7 is a captured animal. Note that the bare wire 3 is a metal wire without a coating that allows current to flow when touched and can cause electric shock. In this embodiment, for example, steel or aluminum wires having sufficient strength not to break even when the captured animal 7 struggles and applies a load are used, but the material is not limited to these.

[0023] Next, the operation of the enclosure trap of the present invention will be described. When an animal 7 enters the enclosure trap body 1, the front and rear doors (not shown) are closed by various mechanisms, and the animal 7 is confined within the enclosure trap body 1. However, there is no ceiling surface in the enclosure trap body 1, and the animal 7 tries to escape from the opening 2 on its upper surface. Note that there are various mechanisms for opening and closing the doors, such as a treadle type in which the locking part is disengaged and the door drops when an animal gets on, or a mechanism that senses the entry of an animal with a sensor or camera and drops the door.

[0024] At this time, the animal 7 touches the plurality of stages of bare wires 3 provided so as to surround the upper part of the opening 2 and applies a load. When a load is applied to the bare wire 3, the load detection mechanism 41 operates, that is, the spring connected to the first support rod 34a extends, thereby opening and closing the switch, and a detection signal is transmitted to the power supply circuit 5 via the load detection signal line 32. The power supply circuit 5 that has received the load detection signal generates a high voltage, outputs the high voltage from the electrode 5a, and the high voltage is applied to all of the plurality of stages of bare wires 3 via the connection line 31. Note that as the load detection mechanism 4, in addition to mechanical mechanisms such as spring switches, electrical sensors such as piezoelectric elements and strain gauges are used according to the normal technical level. Since the second support rod 34b facing the first support rod 34a is fixed to the support column 2c by the fixing member 42, only the first support rod 34a moves due to the applied weight, and the sensitivity of the spring switch can be kept good.

[0025] Here, the current generated by the high voltage generated in the power supply circuit 5 is alternating current, and its voltage is typically about 40 KV but is used in the range of 15 KV to 50 KV. However, the voltage and current can be appropriately adjusted according to the type of animal to be captured, the size of the trap, etc. Also, a pulsed current may be generated and used instead of the alternating current.

[0026] As shown in FIG. 11, the power supply circuit 5 incorporates at least a battery 51 and a high voltage unit 52, and also incorporates a timer 53, and can adjust the time during which the high voltage is continuously generated. The generation time is, for example, several seconds, but is appropriately set according to the voltage, the animal to be captured, etc. Also, the power supply circuit 5 is provided with a control circuit 54 to receive signals from the timer 53 and the load detection mechanism 4 and transmit commands regarding the timing and the duration for which the high voltage should be generated to the high voltage unit 52. Even if the animal 7 once leaves the bare wire 3, the current is maintained for a predetermined time (for example, several seconds) by the timer 53, and even if the animal 7 tries to escape more quickly, it will immediately receive an electric shock, making it difficult to escape. Needless to say, the high voltage holding time by the timer can be freely adjusted.

[0027] The animal 7 that touches the bare wire 3 to which the high voltage is applied forms a closed circuit between the bare wire 3 and the metal enclosure trap body 1 or the ground with the ground 6 applied, and the high voltage is applied for a certain period of time. Also, due to the high voltage, the electric shock has a range of several centimeters or more (for example, 3 - 4 cm), and it has a sufficient effect even on animals with thick fur. For this reason, the animal 7 that touches the bare wire 3 receives an electric shock and has to give up escaping from the opening 2 of the enclosure trap. Here, the high voltage applied to the animal 7 is limited to a short time by the timer function of the power supply circuit 5, and the current amount is also appropriately adjusted to a small current of, for example, about several milliamperes, so it does not lead to death and is captured alive.

[0028] In FIG. 1, the bare wire 3 is insulated from the metal support column 2c by the insulating first support rod 34a or the second support rod 34b, so that a short circuit with the grounded metal enclosure trap body 1 is prevented, and application of a high voltage to the load detection mechanism 41 can also be avoided. Further, instead of the metal support column 2c, an insulating support column, for example, made of resin or bamboo can also be used. Needless to say, the enclosure trap body 1 may be made of a material other than metal for a part or all of it.

Embodiment

[0029] Hereinafter, Example 2 which is another embodiment of the present invention will be described. In the following description, components having the same reference numerals as those in Example 1 in Example 2 indicate the same or corresponding functions. In FIG. 2, a plurality of bare wires 3 are electrically connected alternately. When a load is generated externally on any one of the bare wires, the power supply circuit 5 continuously supplies a high voltage to the one connected to the first electrode 5a among the connected bare wires 3.

[0030] That is, among the plurality of bare wires 3 in FIG. 2, with respect to the bare wires in the first, third, fifth, and seventh stages counted from the topmost stage, they are electrically connected to each other by the first connection wire 3a and are connected to the electrode 5a. On the other hand, with respect to the bare wires in the second, fourth, and sixth stages, they are electrically connected to each other by the second connection wire 3b and are further connected to the electrode 5b via the enclosure trap body 1 which is grounded.

[0031] Here, when the animal 7 confined in the enclosure trap body 1 touches any one or both of the bare wires 3 in the fifth and sixth stages, for example, a closed circuit is formed between the animal 7 and the bare wires 3 in the fifth and sixth stages, and a more direct high-voltage current flows through the animal 7. That is, according to the enclosure trap of the present embodiment, a sufficient electric shock can be applied to the animal 7 with less power, and the escape can be stopped. In addition, an insulating separator 36 may be provided between the bare wires 3 connected to electrodes of different polarities, for example, between the first stage and the second stage, so as not to bend due to the load of an animal and cause a short circuit. Also, the distance between the bare wires can be appropriately designed for the purpose of preventing a short circuit, for example, 5 cm between the wires provided with the separator 36 and 7 cm between the wires without the separator 36.

[0032] FIG. 3 is a front view of the enclosure trap of this embodiment. Here, 2a is the front door, showing the closed state. Needless to say, before the target animal to be captured enters the enclosure trap main body 1, the door is in an open state. In addition, in a passage-type enclosure trap, a rear door 2b (not shown) is similarly arranged on the opposite side. However, it goes without saying that the present invention can also be used for an enclosure trap having only a front door, in which the rear door is not arranged from the beginning and is always closed.

[0033] Also, FIG. 4 is a plan view showing the wiring state of the enclosure trap of this embodiment as viewed from above. In the figure, the bare wire 3 is stretched electrically independently of the support column 2c via the first support bar 34a or the second support bar 34b on the four sides of each stage on the same water surface of the enclosure trap main body 1. With such a configuration, it is possible to prevent a high voltage from being applied to the control circuit 54 via the load detection mechanism 4 and to avoid grounding via the support column 2c. Further, FIG. 5 is a perspective view schematically showing the arrangement of each element in the case where the bare wire 3 has four stages and the doors 2a and 2b at both ends are closed. Note that in FIG. 5, details such as the connection structure of the bare wire 3 to the load detection mechanism 4 are omitted.

Embodiment

[0034] FIG. 6 is a side view of an enclosure trap corresponding to Embodiment 1 when an insulator 33 is used as the insulating means for the bare wire 3. In this embodiment, when the animal 7 touches any of the bare wires 3, a load detection mechanism 4 generates a detection signal due to the tension, and a high voltage is generated in the power supply circuit 5 via the signal line 32 for weight detection. For the load detection mechanism 4, an electrical sensor such as a mechanical spring switch or a piezoelectric element similar to that in Embodiment 1 can be used. Other configurations are generally the same as those in Embodiment 1.

Example

[0035] FIG. 7 is a view showing a side surface of the enclosure trap corresponding to Example 2 when the insulator 33 is used as the insulating means for the bare wire 3. In this example, when the animal 7 touches any of the bare wires 3, a detection signal is generated by the load detection mechanism 4 due to the tension, and a high voltage is generated in the power supply circuit 5 via the signal line 32 for weight detection. As the load detection mechanism 4, a mechanical spring switch, an electric sensor such as a piezoelectric element, or the like similar to that in Example 2 can be used. Other configurations are substantially the same as those in Example 2. Further, similar to Example 2, an insulating separator (not shown) may be provided between the bare wires 3 connected to electrodes of different polarities, for example, between the first stage and the second stage, so as not to bend and short-circuit due to the load of the animal.

[0036] FIG. 8 is a front view of the enclosure trap of this example. It is substantially the same as that described in Example 2 except that the insulator 33 and the load detection mechanism 4 are arranged at both ends of the bare wire 3 as the insulating means.

[0037] FIG. 9 is a plan view showing the wiring state of the enclosure trap of this example as viewed from above. In the figure, 34 is a wiring for electrically connecting the bare wires 3 arranged along each side of the upper surface of the enclosure trap body 1 and insulated from each other. However, the wiring 34 is not provided for the portions of the bare wire 3 that are the electrodes 5a of the power supply circuit 5 and the grounded portions of 6 in order to prevent short circuits.

[0038] FIG. 10 is a structural view schematically showing a state in which the doors 2a and 2b at both ends are closed in this example. In FIG. 10, similar to FIG. 5, details such as the wiring structure of the bare wire 3 to the load detection mechanism 4 are omitted. Also, in each of the above examples, the number of stages of the bare wire is 4 or 6, but of course, other numbers of stages, for example, 1 or 7 or more, may be used.

Industrial Applicability

[0039] The enclosure trap according to the present invention is used to capture vermin that damage crops and contributes to the development of the industry. In particular, it applies a high voltage only for a short time when a captured animal tries to escape and touches the bare wire, so it does not consume unnecessary power, and by appropriately setting the voltage and current, the intensity of the electric shock can be adjusted, preventing excessive impact on the animal and preventing serious accidents even if a person accidentally touches it, which can consider environmental and safety aspects.

Explanation of Signs

[0040] 1 Enclosure trap body 2 Upper surface opening 2a Front door 2b Rear door 2c Support column 3 Bare wire 3a First connection wire 3b Second connection wire 32 Load detection signal wire 33 Insulator 34 Bare wire connection wire 34a First support rod 34b Second support rod 4 Load detection mechanism 41 Spring switch 42 Fixed member 5 Power supply circuit 5a First electrode 5b Second electrode 51 Battery 52 High voltage unit 53 Timer 54 Control circuit 6 Grounding circuit 7 Captured animal

Claims

1. A surrounding trap having an opening on its upper surface, a bare wire provided above the opening so as to surround the opening when viewed from above in the upper surface direction, a power supply circuit for continuously supplying a high voltage to the bare wire, and a load detection mechanism for detecting a load generated in the bare wire, wherein one end of the bare wire is connected to the power supply circuit and the other end is grounded, and the power supply circuit supplies the high voltage for a preset time when a load is generated externally on the bare wire. The surrounding trap is characterized by this.

2. The bare wire is provided in a plurality of stages at a predetermined interval above the surrounding trap, and the plurality of stages of bare wires are electrically connected alternately. When a load is generated externally on any of the bare wires, the high voltage is continuously supplied to the bare wire connected to the power supply circuit. The surrounding trap according to Claim 1 is characterized by this.

3. The load detection mechanism is either a spring switch that mechanically opens and closes contacts by the tension generated in the bare wire or a sensor mechanism that detects the tension of the bare wire and converts it into an electrical signal. The surrounding trap according to Claim 1 or Claim 2 is characterized by this.

4. The power supply circuit includes a timer that continuously supplies the high voltage for a preset time when a load is generated externally on the bare wire. The surrounding trap according to Claim 1 or Claim 2 is characterized by this.

5. A plurality of support columns are provided on the upper surface of the surrounding trap, and the bare wire is fixed to the plurality of support columns so as to surround the opening of the surrounding trap via an insulating support rod or insulator connected to the load detection device. The surrounding trap according to Claim 1 or Claim 2 is characterized by this.

6. A plurality of insulating support columns are provided on the upper surface of the surrounding trap, and the bare wire is fixed to the insulating support columns so as to surround the opening of the surrounding trap. The surrounding trap according to Claim 1 or Claim 2 is characterized by this.

7. The high voltage is alternating current or pulsed. The surrounding trap according to Claim 1 or Claim 2 is characterized by this.

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