JPH1056935A - Method and apparatus for detecting termite - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method and an apparatus for detecting a termite, capable of detecting termite damage due to eating in its early stages, preventing termite damage, or preventing the spread of its damage, by installing the apparatuses around a building without expert knowledge and skill. SOLUTION: This apparatus has a bait 2 packed in an outer case 1, an electroconductive component 4 along the bait 2 and electrodes 3, 3 connected through an electroconductive component 4. When a termite entering into the outer case 1 eats the electroconductive component 4 along with the bait 2, an electroconductive state between the electrodes 3 and 3 is cut off and consequently the invasion of the termite is detected due to a cutoff state.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for detecting termites that damage buildings, wood and the like.

[0002]

2. Description of the Related Art Termites include subterranean termites such as house termites and yamato termites, drywood termites and drywood termites, and American termites. The termites of the termites and the termites of the United States have the habit of spoiling low-moisture content wood and invading wood and buildings sporadically without constructing an ant path. . And
These termites were less likely to be found in the early stages, and were found in the early spring due to the habit of flying large groups out of their nests. In addition, as another method of detecting termites, an inspector with specialized knowledge has also been used to determine the presence and degree of damage by visual inspection, palpation, or a method of detecting termite eating noise, etc. .

[0003]

However, when termites fly in large numbers, the damage to the wood and the building has often progressed considerably, and it has often been difficult to deal with the damage. In addition, the method in which the inspector detects the eating noise is effective only during a certain period during which termite activity is active, and cannot be used throughout the period.
In addition, there is a problem that it takes a huge amount of money to cover an entire building in a method in which an inspector visually detects and palpates a termite.

[0004] The present invention has been made to solve such a conventional problem, and an object of the present invention is to install termites around a building without requiring specialized knowledge and techniques, thereby preventing termites from being damaged by termites. Can be discovered early,
It is an object of the present invention to provide a method for detecting termites and a device capable of preventing the damage beforehand or preventing the damage from spreading.

[0005]

According to a first aspect of the present invention, there is provided a method for detecting a termite, comprising:
A conductive member is disposed on a termite bait, and both ends of the conductive member are connected to electrodes to form an electric closed circuit. A method of detecting the invasion of termites when the conduction state of the termite is interrupted and the occurrence of the interruption state is adopted. Based on this method, there is an effect that the equilibrium state of the electrical closed circuit is broken by termite damage, and the intrusion of termites can be accurately detected from the change.

According to a second aspect of the present invention, there is provided a termite detection device.
A termite detection device configured to include a termite bait stored in an outer case, a conductive member disposed on the bait, and an electrode connected via the conductive member,
When the termites invading the outer case attack the conductive member together with the bait, the electrical conduction between the electrodes is interrupted, and when the interruption occurs, the intrusion of the termites is detected. This has the effect that a device that can reliably detect termite intrusion electrically can be configured.

According to a third aspect of the present invention, there is provided a termite detection device.
3. The termite detection device according to claim 2, wherein the conductive member has a configuration in which a conductive paint is applied in a linear shape or a band shape on the lower surface of the bait. This has an effect that a conductive member having a form in which termites are easily damaged can be formed.

According to a fourth aspect of the present invention, there is provided a termite detection device.
4. The termite detection device according to claim 3, wherein the conductive paint includes any one of a filler (filler) of carbon, nickel powder, nickel flake, gold, silver, and metal oxide, and a synthetic resin. It was formed by mixing a binder (binder). This makes it easier for termites to eat,
In addition, it has an effect that a paint having excellent conductivity can be obtained.

According to a fifth aspect of the present invention, there is provided a termite detection device.
The termite detection device according to claim 2,
As the conductive member, a conductive material such as conductive ink, electroless plating using chemical reduction plating, conductive adhesive, conductive tape, metal foil, and metal wire was used. This has the effect that the termites can be easily harmed and a substance having excellent conductivity can be applied.

[0010] In the termite detection device according to claim 6,
3. The termite detection device according to claim 2, wherein the electrode and the conductive member are crimped to the bait by a wood screw threaded through the electrode and the conductive member, and are electrically connected to each other. . This has the effect that the electrode and the conductive member can be easily joined and fixed to the bait.

[0011] In the termite detection device according to claim 7,
In the termite detection device according to claim 3, instead of forming the conductive paint in a linear or band shape,
The conductive paint is applied in a zigzag linear shape that is bent alternately left and right. Thereby, the amount of extension of the conductive paint with respect to the part damaged by the termites is increased, and it is possible to detect the damage at an early stage.

[0012] In the termite detection device according to claim 8,
4. The termite detection device according to claim 3, wherein the conductive paint is formed so as to draw a continuous curve such as a spiral shape or an arbitrary figure formed by a combination of a straight line and a curve. This has the effect of increasing the length of the conductive paint and making it possible to create a figure according to the habits of termites.

[0013] In the termite detecting device according to the ninth aspect,
The termite detection device according to claim 2, wherein wood, paper, styrofoam, or the like is used as the termite bait. This has the effect that the selection of food can be widened.

According to a tenth aspect of the present invention, there is provided the termite detecting apparatus according to the second aspect, wherein the bait of the termite is cut into a rectangular parallelepiped by cutting vertically from the annual ring surface with the annual ring surface of the wood as the upper and lower surfaces. The conductive member is formed so as to cross the spring material portion of the annual ring surface portion. Thus, the conductive member can be provided at a location where the termites are likely to be damaged by the damage, which has an effect of enabling detection of the damage at an early stage.

[0015] In the termite detecting device according to the eleventh aspect, in the termite detecting device according to the tenth aspect, less than 50% of the reddish portion appearing on the annual ring surface and more than 50% of the whitish portion appear on the annual ring surface. Has formed. Thus, the portion that is easily damaged by termites is provided as bait, so that it is possible to detect the damage at an early stage of the damage.

According to a twelfth aspect of the present invention, there is provided the termite detecting apparatus according to the tenth or eleventh aspect, wherein the wood is of a type such as a pine or a susceptible to termite damage such as a cedar. doing. This makes it possible to use general building materials that are easily available.

According to a thirteenth aspect of the present invention, there is provided the termite detecting device according to any one of the second to twelfth aspects, wherein a termite-inducing pheromone or wood rot fungus is arranged around the bait. ing. This has the effect of increasing the attraction of termites into the device.

According to a fourteenth aspect of the present invention, there is provided the termite detecting apparatus according to any one of the second to thirteenth aspects, wherein the conductive member is disposed inside the bait. This has the effect of being able to cope with any form of termite damage.

According to a fifteenth aspect of the present invention, there is provided the termite detecting apparatus according to any one of the second to fourteenth aspects, wherein the termite detecting apparatus supplies a current at the time of inspection to determine whether or not there is termite damage. Was detected, and the power was always removed. This eliminates the need to constantly supply a current, and has the effect of saving power.

That is, in the method and apparatus for detecting termites according to the present invention, the termites harm the conductive portion together with the wood, thereby interrupting the electrical conduction state. It is possible to find termite damage without using specialized inspectors. Also, by providing an alarm means such as a light alarm or a sound alarm, and by notifying this signal to the management center through a telephone line, a quick extermination process can be performed.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a method for detecting termites and a detection apparatus based thereon according to the present invention will be described in detail with reference to the drawings. FIG. 1 is a sectional view showing a termite detection device according to the first embodiment, FIG. 2 is a plan view showing the termite detection device according to the first embodiment, and FIG. 3 is a diagram showing the termite detection device according to the first embodiment. FIG. 4 is a perspective view showing the wood according to the first embodiment, FIG. 5 is a side view showing the termite detecting device according to the second embodiment, and FIG. 6 is a second embodiment.
FIG. 7 is a plan view showing the termite detection device according to the first embodiment, and FIG. 7 is a bottom view showing the termite detection device according to the second embodiment.

As shown in FIGS. 1 to 3, a termite detecting device A according to a first embodiment of the present invention
And a termite edible wood 2 housed inside the outer case 1, electrodes 3 provided at both ends of the wood 2, and a conductive member that is a conductive member that connects the electrodes 3 to each other in an electrically conductive state. The main constituents are a conductive paint 4 and lead wires 5 connected to the respective electrodes 3.

The outer case 1 has a pedestal 6 for supporting the main body.
And a top cover 7 fitted and disposed thereon. The pedestal 6 includes a grounding portion 8 on a lower outer periphery, and the grounding portion 8.
A central portion surrounded by the grounding portion 8 and the enclosure 9 is opened to form an opening 10 for termite invasion.

The upper cover 7 is a cylindrical cover which is fitted inside the enclosure 9 of the pedestal 6 and has an open lower surface, and is closed on the upper surface and side surfaces so that rain does not enter. . Then, a lead wire 5 is inserted from the center of the closed upper surface, and the lead wire 5 is connected to two internal electrodes 3, and the tip portions of the electrodes 3 are connected to each other via a conductive paint on the wood surface. The circuit is electrically connected to form an electrically closed circuit. The wood 2 is housed in the outer case 1 and is sandwiched and fixed between the electrodes 3 arranged opposite to each other. The lower surface of the wood 2 is grounded to the ground or faces the ground with a slight gap. It is arranged. And wood 2
A conductive paint 4 is applied on the lower surface of the conductive paint in a linear or band shape, and the electrodes 3 are electrically connected to each other by contacting both ends of the conductive paint.

One end of each of the two electrodes is fixed to the inner upper surface of the upper cover, and the other end of the two electrodes extends downward. The electrodes extending downward correspond to both ends of the wood 2 and the conductive paint 4. From the outside of the contact portion, a wood screw 11 penetrates the electrode 3 and is screwed to the wood 2 to fix the wood 2. Thereby, the wood 2, the conductive paint 4 and the electrode 3 are pressed by the wood screw 11, and the electrode 3 and the conductive paint 4 are reliably connected in an electrically conductive state.

The conductive paint 4 is formed by mixing a filler (filler) such as carbon, nickel powder, nickel flake, gold, silver and metal oxide into a binder (binder) such as a synthetic resin. A material is used, and the portion where the paint is applied has conductivity. In place of the conductive paint, a conductive ink, electroless plating using chemical reduction plating, a conductive adhesive, a conductive tape, a metal foil, a conductive material such as a metal wire may be used. Can be. As the conductive ink, for example, K-
3040 (trade name), K-3040 uses Ag as a filler, and a quick-drying acrylic resin at room temperature as a binder, one package, and 3 × 10 ^-3 Ω · c in electrical characteristics.
m, the substrate has a feature that can be used for ABS, PPO, PS, PC, electrode wave shielding requiring high reliability, printed circuit, lead terminal and the like.

Next, the arrangement direction of the wood will be described with reference to FIG. The tree has an annual ring, and when the tree is cut vertically from the vertical direction, an annual ring surface 12 is formed on the cut surface.
The tree 2 is formed by cutting the tree ring surface 12 vertically from the tree ring surface 12 and forming a rectangular parallelepiped with the tree ring surface 12 as the upper and lower surfaces. An annual ring surface having a so-called annual ring 13 is formed. Since the portion between the annual rings 13 called the spring material 14 is relatively soft, the damage by termites is apt to occur, and the conductive paint 4 is applied linearly across the spring material 14. The electrodes 3 are connected to each other. As a result, when a termite invades, first, the spring material 14 is eroded first, and the conductive paint 4 is cut along with the erosion, thereby interrupting the electrical conduction between the electrodes 3.

Here, the timber inside the trunk is called a heartwood,
It has a darker color than sapwood close to the bark, and is harder than sapwood. The central circular portion forming the core of the annual ring surface 12 is a so-called reddish portion having a red tint, and the donut-shaped portion from the outer periphery to the outer skin is a so-called white tint portion having a white tint. The part where the termites are susceptible to damage is a relatively soft white part. In the present invention, the red part is less than 50%, and the white part is 50% or more of the bait for termite consumption. Note that, as the wood, a kind of wood that is susceptible to damage by termites such as pine, ivy, and cedar is used.

Next, the operation of the termite detecting device A according to this embodiment will be described. A switch circuit using a power supply, a relay or a semiconductor, and alarm means are connected to an extension of the lead wire 5 to provide a termite detection device A
Are installed in the garden, under the eaves, under the floor, around the building, and around the roof and wall pillars inside the building and at appropriate locations inside the building. When termites enter through the opening 10 of the outer case 1, the termites damage the wood 2 inside and the conductive paint 4 at the same time, and cut off the electrical conduction between the electrodes 3. When the electrical continuity is interrupted, this signal is sensed by the switch circuit, and the switch circuit is switched, illuminating and activating alarm means such as an audio alarm. Then, by detecting this warning, it is possible to take measures against termites.

As an alarming means, a feeding signal may be communicated to the management center through a telephone line, and a signpost pheromone, which is a termite inducing pheromone, is provided in a termite detecting device in order to enhance the termite inducing power. Alternatively, wood rot fungi having termite-inducing effect may be added. In addition, as a power source, it is possible to use a household outlet, a dry battery, a storage battery, a solar battery, and the like.
In addition to wood, paper, styrene foam, and the like can be used.

Next, a termite detection device according to a second embodiment of the present invention will be described with reference to FIGS. In this embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted. Termite detection device B according to the second embodiment
Is an outer case 1 having a lower opening,
, An electrode 3 vertically inserted in the wood 2, a conductive paint 4 applied to a lower surface of the wood 2, and a lead wire connected to each of the electrodes 3. 5
Is the main configuration.

The wood 2 is arranged at the center of the outer case 1 and rod-shaped electrodes 3 are vertically inserted from two corners on the upper surface. Then, the conductive paint 4 is applied to the lower surface of the conductive paint 4 in a state of being bent alternately left and right, that is, in a zigzag linear form, and the electrodes 3 are applied to both ends of the zigzag linear conductive paint 4.
Are connected, and the electrodes 3 are connected in an electrically conductive state. Then, the zigzag linear conductive paint 4
Is directly grounded to the ground, or is disposed facing the ground with a slight gap. In the termite detection device B of the present embodiment, since the conductive paint is formed in a long zigzag line shape, if a part of the line is also damaged, an abnormality is detected, and the sensing portion becomes longer accordingly, and the sensing portion becomes longer. Ability is improved. The operation of the termite detecting device B according to the second embodiment is the same as that of the termite detecting device according to the above-described embodiment.

Although the embodiment of the present invention has been described above, the specific configuration of the present invention is not limited to this embodiment, and there are design changes and the like within a range not departing from the gist of the invention. This is also included in the present invention. For example, in the present embodiment, the configuration is such that the conductive paint is applied to the surface of wood. However, the present invention is not limited to this, and the conductive paint may be provided so as to penetrate inside the wood. It is formed by applying a varnish and sticking it together or by penetrating wood. Alternatively, a groove may be formed in a portion where the conductive paint is to be applied, and the conductive paint may be applied to the groove. Further, in the present embodiment, the application of the conductive paint has been described as a straight, a band, or a zigzag. However, the application of the conductive paint, such as a spiral shape, can be arbitrarily set. In the present embodiment, the switch circuit is provided in the termite detection device. However, it is not always necessary to provide the switch circuit. The configuration is also included in the present invention.

[0034]

As described above, in the method for detecting termites according to the first aspect of the present invention, the electrical continuity is cut off by the termites eroding the conductive member together with the wood, and the cutoff state Thus, the invasion of termites can be detected, so that the termites can be found to be harmless without using a specialized inspector, thereby preventing the building from being damaged seriously.

In the termite detecting device according to the second aspect, the termites damage the conductive member together with the wood, so that the electrical conduction state is interrupted, and the intrusion of the termites can be detected based on the interrupted state. In addition, it is possible to detect termite damage without relying on a specialist inspector and prevent the occurrence of serious damage to buildings. And
Since the intrusion of termites is detected when the conductive member disposed on the bait is damaged, the structure of the device itself is simplified, and the manufacturing cost can be reduced. Further, by providing an alarm means such as a light alarm or a sound alarm, and by notifying this signal to the management center via a telephone line, it is possible to obtain an effect such that a quick extermination process can be performed.

In the termite detection device according to the third aspect, since the conductive paint is used as the conductive member, it can be easily formed into a linear shape or a band shape. The electrodes can be connected in an electrically conductive state.

According to a fourth aspect of the present invention, there is provided the termite detection device, wherein the conductive paint is any one of carbon, nickel powder, nickel flake, gold, silver, metal oxide and the like; Since a mixture of a binder (a binder) such as the above is used, a coating material that is easily damaged by termites and excellent in conductivity can be obtained.

According to a fifth aspect of the present invention, the conductive member includes a conductive ink, electroless plating using chemical reduction plating, a conductive adhesive, a conductive tape, a metal foil, a metal wire, or the like. Since it is used, a substance that is easily damaged by termites and has excellent conductivity can be applied.

In the apparatus for detecting termites according to the sixth aspect, since the electrode and the conductive member are press-bonded by the wood screw, the conductive member and the electrode are securely connected.

In the termite detecting device according to the seventh aspect, since the conductive paint is formed in a zigzag line, a portion for detecting termite damage is lengthened, and the sensing ability is improved.

In the termite detecting device according to the present invention, the conductive paint is drawn in a continuous curve such as a spiral shape or an arbitrary figure composed of a combination of a straight line and a curved line. The length of the part to be performed becomes longer, and the sensing ability is improved. In addition, an effective conductive paint curve can be formed according to the shape of the termite bait.

In the termite detection apparatus according to the ninth aspect, since wood, paper foam, or the like is used as the termite bait, the type of bait can be set according to the surrounding environment and the like.

According to the tenth aspect of the present invention, since the conductive member is disposed so as to cross the portion of the spring lumber that is liable to damage the termites, the conductive member is disconnected along with the damage to the termites. Easy and sensitive to termite infestation.

In the apparatus for detecting termites according to the eleventh aspect, the bait for termite consumption is constituted with relatively soft whitish portions at a ratio of 50% or more. It reacts easily to termite infestation.

In the termite detection apparatus according to the twelfth aspect, as a bait for termite consumption, pine, ivy, cedar or the like which is relatively susceptible to damage by termites is used. Reacts sensitively to

In the apparatus for detecting termites according to the thirteenth aspect, the termite-inducing pheromone or wood rot fungus is disposed around the bait, so that the termite-inducing power can be increased.

In the termite detection device according to the fourteenth aspect, since the conductive member is disposed inside the bait, it is possible to cope with all types of termite damage.

In the termite detection device according to the fifteenth aspect, since the power supply is always removed, there is no need to constantly supply a current, and power can be saved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a termite detection device according to a first embodiment.

FIG. 2 is a plan view showing the termite detection device according to the first embodiment;

FIG. 3 is a bottom view illustrating the termite detection device according to the first embodiment;

FIG. 4 is a perspective view showing the wood according to the first embodiment;

FIG. 5 is a side view illustrating a termite detection device according to a second embodiment;

FIG. 6 is a plan view showing a termite detection device according to a second embodiment;

FIG. 7 is a bottom view showing the termite detection device according to the second embodiment;

[Explanation of symbols]

 Reference Signs List A Termite detection device B Termite detection device 1 Outer case 2 Wood 3 Electrode 4 Conductive paint 5 Lead wire 6 Pedestal 7 Top cover 8 Grounding part 9 Enclosure 10 Opening 11 Wood screw 12 Annual ring surface 13 Annual ring 14 Spring material

Continued on the front page (72) Inventor Hirofumi Setoguchi 2-1-1 Mukono, Minami-ku, Fukuoka City (72) Inventor Ubunji 2-1-1 Mukono, Minami-ku, Fukuoka City Sanix Corporation ( 72) Inventor Osamu Yamaguchi 2-1-1 Mukono, Minami-ku, Fukuoka City Sanix Corporation (72) Inventor Eiichiro Ogawa 2-1-1 Mukono, Minami-ku Fukuoka City Sanix Corporation (72) Inventor Kazuhiko Ito 2-1-1, Mukono, Minami-ku, Fukuoka City (72) Inventor Takayuki Tomishima 2-1-1, Mukono, Minami-ku, Fukuoka City (72) Inventor Yuichi Nakamura 2, Mukono, Minami-ku, Fukuoka City Chome No. 1-1 Sanix Co., Ltd.

Claims (15)

[Claims] An electrically conductive member is disposed on a termite bait, and both ends of the conductive member are connected to electrodes to form an electrically closed circuit. The termites attack the conductive member together with the bait,
A method for detecting termites, characterized in that a conduction state of the electrically closed circuit is interrupted, and when the interruption state occurs, intrusion of termites is detected. 2. A termite detection device comprising: a termite bait housed in an outer case; a conductive member disposed on the bait; and an electrode connected via the conductive member. An apparatus, wherein the termites invading the outer case damage the conductive member together with the bait, thereby interrupting the electrical conduction state between the electrodes, and detecting the intrusion of the termites by the occurrence of the interrupted state. A termite detection device characterized by the above-mentioned. 3. The termite detection device according to claim 2, wherein the conductive member is formed by applying a conductive paint in a line shape or a band shape on a lower surface of the bait. 4. As the conductive paint, a filler (filler) of carbon, nickel powder, nickel flake, gold, silver, metal oxide and the like, and a binder (binder) of synthetic resin or the like are used. The termite detection device according to claim 3, wherein the detection device is formed by mixing. 5. A conductive ink as the conductive member,
The termite detection device according to claim 2 or 3, wherein a substance having conductivity such as electroless plating using chemical reduction plating, conductive adhesive, conductive tape, metal foil, or metal wire is used. . 6. The electrode and the conductive member are crimped to the bait and electrically connected to each other by a wood screw threaded through the electrode and the conductive member. Item 2. The termite detection device according to Item 2. 7. The conductive paint is applied in a zigzag linear shape in a state where the conductive paint is bent alternately left and right instead of forming the conductive paint in a linear or band shape. The termite detection device according to claim 3. 8. The termite detection according to claim 3, wherein a shape of the conductive paint is a continuous curve such as a spiral shape or an arbitrary figure composed of a combination of a straight line and a curve. apparatus. 9. The termite detection device according to claim 2, wherein wood, paper, styrofoam, or the like is used as the termite bait. 10. The termite bait is formed into a rectangular parallelepiped by cutting vertically from the annual ring surface, with the annual ring surface of the wood as the upper and lower surfaces, and the conductive member is formed so as to cross the spring material portion of the annual ring surface portion. The termite detection device according to claim 2, wherein the device is provided. 11. The reddish portion appearing on the annual ring surface is 50.
The termite detection device according to claim 10, wherein the bait forms the bait in a ratio of less than 50% and a whitish portion in a ratio of 50% or more. 12. The termite detection device according to claim 10, wherein the wood is of a type that is susceptible to damage by termites such as pine and cedar. 13. The termite detection device according to claim 2, wherein a termite-inducing pheromone or wood rot fungus is disposed around the bait. 14. The termite detection device according to claim 2, wherein the conductive member is disposed inside the bait. 15. The termite detection device according to claim 2, wherein a current is supplied during inspection to detect presence or absence of termite damage, and the power is always removed.
5. The termite detection device according to any one of 4.