JP6699962B2 - Insect trap - Google Patents

Description

  The present invention mainly relates to an insect trap that attracts and captures flying insects with light.

  2. Description of the Related Art In the past, insect traps that mainly attract flying insects with light and capture them have been well known. It is generally known that insects are particularly attracted to light having a wavelength of 350 nm to 380 nm in the ultraviolet band of 300 nm to 400 nm. The insects attracted by the attracting light source inside the insect trap are captured and killed by a trapping means such as an adhesive plate or an electric shock device installed around the attracting light source.

  As a conventional insect trapping technique using an insect trap or the like, for example, the “insecticidal device” disclosed in Patent Document 1 is known. This insecticidal device is arranged in the order of the innermost LED unit, the electric shock grid, and the outermost guard portion in this order. Here, since the guard portions are arranged in a mesh shape, the electric shock grid can be visually recognized from the outside. With such an insect trap structure, the captured insects can be visually recognized, or the moment the insects are captured can be visually recognized. Therefore, in a store where cleanliness is required, such as a restaurant or a food retail store, when the customer notices the installation of the insect trap, he or she may feel unclean and unpleasant.

  Further, the "capturer" disclosed in Patent Document 2 is provided with an adhesive layer as a capturing means on the surface of the entire circumference around the axis of the capturer. In the case of such a structure, the captured insects are visually recognized even in a factory or a general household, and the user feels uncomfortable. Further, since the capturing means is arranged at a position close to the outside of the insect trap, there is a problem that the trapped insects escape or the insect carcasses scatter around.

  On the other hand, when the attracting light source and the capturing means are arranged inside the trap, the attracting light source is less likely to be visually recognized by the insect to be captured, and thus the capturing performance is likely to be deteriorated. Therefore, the insect trap is required to have both high visibility for insects and high capture performance, and low visibility for humans and high concealing ability.

  In order to deal with these problems, a structure that both attracts insects to the vicinity of the trap and guides them from the vicinity to the trap is required. For example, Patent Document 3 discloses a "capturer" capable of efficiently emitting light from a front opening by reflecting the attracted light on a reflection plate. However, the effect of the structure on the attractiveness and induction of the capture means is not specified.

  Further, in Patent Document 4, by arranging a highly reflective reflector above the light source, it is possible to increase the attraction efficiency by irradiating a wide range of light for attracting insects with the reflector serving as the second light source. "Insect capture device" is disclosed. This reflector is configured so that the total reflectance for light having a wavelength of 340 nm to 380 nm is 50% or more and the light diffusivity is 30% or more.

  Patent Document 5 discloses a "pest control device" including a reflection attracting portion above an attracting light source. However, the reflection characteristic is a reflection characteristic that reflects a part or all of light, and no special device for guiding is made.

  Patent Document 6 discloses a "pest control device and its mounting structure" in which a reflection diffusion plate is arranged separately from a light source. However, its functional characteristics are not specified, and it is said that induction is performed by airflow and negative gravitational mobility.

  Patent Document 7 discloses a "insect trap" that includes a reflecting mirror and an optical filter that is coated with a phosphor that is excited by light having a wavelength of approximately 400 nm to 450 nm on the light source side. .. It is said that this insect trap has a high attraction effect for insects flying below the trap, which is difficult to catch the light of the phosphor by the reflecting mirror.

JP, 2011-254714, A JP, 2010-279254, A JP, 2007-135527, A JP, 2008-29206, A JP, 2008-154519, A JP, 2007-289053, A JP, 2008-154500, A

  However, with the conventional existing insect trapping techniques shown in Patent Documents 1 to 7, it is expected that insects will be fixed to the reflector or the fluorescent substance, and it may not be possible to sufficiently attract insects from a long distance. Therefore, there is a demand for a technique for more effectively attracting insects to the vicinity of the trap in an insect trap that accommodates the main attraction light source inside the device, and more effectively guiding the attracted insect to the trapping means. .

  The present invention has been made in view of the above problems, and an object thereof is to enable the attraction of insects from a long distance while hiding the main attraction light source inside the main body, and ensure that the insects do not stay near the device. Another object of the present invention is to provide an insect trap capable of guiding the insect trapping means inside the main body.

  Means for solving the above problems are listed in the following [1] to [9].

[1] A main body having an opening of a size that allows insects to enter, a main attraction light source that irradiates light that attracts the insect toward the opening side, and captures the insect that is attracted by the main attraction light source In an insect trap provided with insect trapping means, wherein the main attraction light source and the insect trapping means are arranged invisible in the inside of the main body, and arranged outside the opening in the main body in a state visible from the outside. The low-luminance region having a relatively low luminance, which is composed of two adjacent regions having different light characteristics, has a band-shaped contrast enhancing portion on its surface, and the active or passive light emission is performed. With the auxiliary attraction structure for attracting the insect, the attraction by the light emitted by the auxiliary attraction structure is set to be lower than the attraction by the light emitted by the main attraction light source. And an insect trap.

  According to the invention of the above means 1, the main attraction light source and the insect trapping means are arranged inside the main body in a state invisible from the outside of the apparatus, while the auxiliary attraction structure is visible outside the opening in the main body. It is arranged in a state. Therefore, the insect is first attracted to the auxiliary attracting structure by the attractive force of light emitted by the auxiliary attracting structure having the contrast-enhanced portion on the surface. Then, the light emitted by the main attraction light source can be directly visually recognized by the insect that has reached the vicinity of the surface of the auxiliary attraction structure. Next, the insect is attracted by the light emitted from the main attraction light source, enters the inside of the main body through the opening, and is finally captured by the insect trapping means. In this case, the attracting force of the light emitted by the auxiliary attracting structure is set to be lower than the attracting force of the light emitting by the main attracting light source, so that the attracted insects do not remain in the auxiliary attracting structure. The insect trapping means inside the main body is surely guided.

  [2] The insect trap according to means 1, wherein the main body is separable and replaceable between a light source side portion in which the main attraction light source is arranged and a insect trap side portion in which the insect trapping means is arranged.

  Therefore, according to the invention relating to the above means 2, for example, the light source side portion can be replaced when the main attracting light source fails, or the insect trapping side portion can be replaced when the insect trapping means is soiled or deteriorated. It will be possible. Therefore, the maintenance is easier and the convenience is improved as compared with the case where the light source side portion and the insect trap side portion are inseparable from each other.

[3] A main body provided with a light source arrangement section having an opening of a size that allows insects to enter, and provided with a light source arrangement part capable of arranging a main attraction light source for irradiating light that attracts the insect toward the opening side; An insect trapping means for trapping the insect attracted by the attracting light source, and when the main attracting light source is arranged in the light source arrangement portion, the light emitting portion of the main attracting light source and the insect trapping means are external to the inside of the main body. in trap positionable in a invisible state from being disposed outside of said opening in said body at a visible state from outside, it is composed of two regions adjacent with different optical characteristics, of the region The low-luminance region having a relatively low brightness has a contrast enhancing portion having a strip shape on its surface, and is provided with an auxiliary attracting structure portion that attracts the insect by active or passive light emission, and the auxiliary attracting structure portion An insect trap, wherein the attractive force of the emitted light is set to be lower than the attractive force of the light emitted by the main attractive light source.

  Therefore, according to the invention of the above means 3, for example, when the main attraction light source is arranged in the light source arrangement portion, the light emitting portion of the main attraction light source and the insect trapping means are arranged inside the main body in a state invisible from the outside of the device. Will be done. On the other hand, the auxiliary attraction structure is arranged so as to be visible outside the opening in the main body. Therefore, the insect is first attracted to the auxiliary attracting structure by the attractive force of light emitted by the auxiliary attracting structure having the contrast-enhanced portion on the surface. Then, the light emitted by the main attraction light source can be directly visually recognized by the insect that has reached the vicinity of the surface of the auxiliary attraction structure. Next, the insect is attracted by the light emitted from the main attraction light source, enters the inside of the main body through the opening, and is finally captured by the insect trapping means. In this case, the attracting force of the light emitted by the auxiliary attracting structure is set to be lower than the attracting force of the light emitting by the main attracting light source, so that the attracted insects do not remain in the auxiliary attracting structure. The insect trapping means inside the main body is surely guided.

  [4] The auxiliary attraction structure includes a reflector that receives light from the main attraction light source and emits reflected light, or a phosphor that receives light from the main attraction light source and emits fluorescence. The insect trap according to any one of means 1 to 3 characterized in that.

  Therefore, according to the invention of the above means 4, insects are attracted to the auxiliary attraction structure by the reflected light or fluorescence emitted from the auxiliary attraction structure. Further, since it is not necessary to provide a means for emitting light in the auxiliary attraction structure, the device structure can be simplified as compared with the case where the auxiliary attraction structure that attracts insects by active light emission is adopted. ..

  [5] The difference in the attraction force between the auxiliary attraction structure portion and the main attraction light source is the light intensity of a high-luminance region having relatively high luminance among the two regions forming the contrast enhancing portion. The insect trap according to means 4, wherein the insect trap is provided by setting the light intensity of the main attraction light source to 1% or more and less than 80%.

  Therefore, according to the invention of the above means 5, as a result of the difference in the attraction force between the auxiliary attraction structure portion and the main attraction light source being within a suitable range, while sufficiently attracting insects from a long distance, It becomes possible to sufficiently prevent fixing. If the light intensity in the high brightness area is less than 1% of the light intensity of the main attraction light source, the difference in attraction force between the auxiliary attraction structure and the main attraction light source becomes too large, and insects can be sufficiently attracted from a long distance. It may disappear. On the other hand, when it is 80% or more, the difference in the attraction force between the auxiliary attraction structure section and the main attraction light source becomes too small, and the insects are less likely to be attracted by the main attraction light source, and the insects are fixed to the auxiliary attraction structure section. It may not be able to prevent it sufficiently. The light intensity in the high brightness region is preferably set to 1% or more and less than 50% of the light intensity of the main attraction light source, and more preferably 10% or more and less than 40%.

  [6] When the auxiliary attraction structure is the reflector, the difference in attraction between the auxiliary attraction structure and the main attraction light source is longer than the wavelength band of light emitted by the main attraction light source. The insect trap according to means 4, which is provided by using the reflector that emits the reflected light in a narrow wavelength band.

  Therefore, according to the invention of the above means 6, by using the reflector having such a reflection characteristic, it is possible to impart a suitable difference in attractive force relatively easily.

  [7] When the auxiliary attraction structure is the phosphor, the difference in the attraction force between the auxiliary attraction structure and the main attraction light source is the excitation light included in the wavelength band of the light emitted by the main attraction light source. 5. The insect trap according to means 4, which is provided by using the fluorescent substance that emits the fluorescent light having a wavelength longer than the wavelength.

  Therefore, according to the invention of the above means 7, it becomes possible to impart a suitable difference in attractive force relatively easily by using the phosphor having such an excitation characteristic.

  [8] In any one of means 1 to 7, characterized in that the opening is provided on the bottom surface of the main body, and the auxiliary attraction structure is arranged outside and below the opening in the main body. The insect trap described.

  Therefore, according to the invention related to the above means 8, since the light of the auxiliary attracting structure is emitted to the range including the lower side of the device, the diagonally lower front side or the front side, the insect in the direction can be efficiently attracted. Also, since the opening is provided on the bottom surface of the main body, it is possible to prevent the entry of dust, dust, rainwater, etc. into the main body, and make it suitable for installation on a place away from the floor or the ground, for example. You can

  [9] The insect trap according to means 8, wherein the auxiliary attraction structure is a substantially pyramid arranged so that the top thereof faces upward.

  Therefore, according to the invention of the above means 9, since the light of the auxiliary attraction structure is diffused in a wider area around the insect trap, the insects around the auxiliary attraction structure can be efficiently attracted.

  As described in detail above, according to the inventions described in claims 1 to 9, it is possible to attract insects from a long distance while hiding the main attraction light source inside the main body, while ensuring that the insects do not remain near the device. It is possible to provide an insect trap capable of guiding even the insect trapping means inside the main body.

(A) is a schematic perspective view of the insect trap of the first embodiment embodying the present invention when viewed from the front side, and (b) is a similar exploded perspective view. (A) is a schematic perspective view when the insect trap of 1st Embodiment is seen from the back side, (b) is a schematic exploded perspective view of the same. The schematic longitudinal cross-sectional view which shows the installation state of the insect trap of 1st Embodiment. (A) is a front view of the insect trap of 2nd Embodiment which actualized this invention, (b) is a schematic longitudinal cross-sectional view of the same. The longitudinal cross-sectional view of the insect trap of 3rd Embodiment which actualized this invention. FIG. 6 is a schematic diagram for explaining the content of an experiment performed in the third embodiment. (A)-(c) is a graph which shows the result of the said experiment. (A)-(d) is a front view of the insect trap in another embodiment. (A), (b) is a schematic longitudinal cross-sectional view of the insect trap in another embodiment. (A), (b) is a schematic longitudinal cross-sectional view of the insect trap in another embodiment. (A), (b) is a schematic longitudinal cross-sectional view of the insect trap in another embodiment. The schematic longitudinal cross-sectional view which shows the installation state of the insect trap in another embodiment. The schematic longitudinal cross-sectional view which shows the installation state of the insect trap in another embodiment. The schematic longitudinal cross-sectional view which shows the installation state of the insect trap in another embodiment.

[First Embodiment]
Hereinafter, the insect trap according to the first embodiment of the present invention will be described in detail with reference to FIGS. 1 to 3.

  The insect trap 11 of the present embodiment is a wall-mounted insect trap 11 that is mainly intended for use in a store or factory.

  As shown in FIGS. 1 to 3, the insect trap 11 includes a main body 12, a main attraction light source 13, an insect trap 14 and the like. The main body 12 is a casing having an opening 16 on the bottom surface having a size through which an insect M (mainly a flying insect) can enter, and a back surface portion 18 is fixed to the wall W1 as shown in FIG. ing. In the main body 12 of the present embodiment, the back surface portion 18 and the other portions (that is, the main body main portion including the front surface portion, the upper surface portion, and both side surface portions) are separable from each other. The main part of the main body can also be understood as a removable cover member for covering the back surface part 18 and various parts fixed thereto. 1 and 2, for convenience of explanation, a state in which the back surface portion 18 is removed is shown. The main body 12 is formed of an arbitrary material capable of reliably blocking the light L1, and is configured using a material such as metal or synthetic resin.

  By the way, it is acceptable to use a material such as paper or wood as long as it satisfies the above-mentioned light-shielding property. The shape of the main body 12 is not particularly limited, but in the present embodiment, it is a rectangular shape having a large lateral width in a front view.

  As shown in FIG. 3 and the like, the main attraction light source 13 and the insect trapping means 14 are arranged inside the main body 12 in a state invisible from the outside. In the present embodiment, the main attraction light source 13 is horizontally mounted on the inner surface side of the back surface portion 18 of the main body 12. The main attraction light source 13 can irradiate the light L1 of about 300 nm to 700 nm toward the opening 16 side. By the way, the main attraction light source 13 includes the light L1 in the ultraviolet region (340 nm to 400 nm) that strongly attracts the insect M. Inside the main body 12, an electronic device unit 15 (specifically, a control board, a power supply, a ballast, etc.) including electronic devices necessary for controlling the lighting of the main attraction light source 13 is housed. The electronic device unit 15 is provided on the inner surface side of the back surface portion 18 at a position above the main attraction light source 13 (that is, a position on the back side when viewed from the opening 16) so as not to block the light L1 of the attraction light source 13. It is installed.

  The insect trapping means 14 is a member or part for trapping the insect M attracted by the main attraction light source 13, and for example, an adhesive type, a dry type, an electric shock type, a basin type, a suction type or the like can be used. .. In this embodiment, for example, two sticky insect trapping means 14 in the form of a plate are adopted, and they are arranged front and back with the main attraction light source 13 interposed therebetween, and those arranged rearward are arranged on the inner surface side of the rear surface portion 18. The one that is mounted and arranged in the front is mounted on the inner surface side of the front surface portion. The sticky insect trapping means 14 can be detached from the main body 12 and can be replaced appropriately. Since the sticking type insect trapping means 14 does not require electric power, it has an advantage that it is more economical than the electric shock type. Further, in the dry type, there is a possibility that the insect M once captured may come out, but in the adhesive type insect trapping means 14, there is also an advantage that the trapped insect M can be retained without escape.

  The insect trap 11 includes an auxiliary attraction structure 17 in addition to the main attraction light source 13. The auxiliary attraction structure 17 is arranged outside the opening 16 in the main body 12 so as to be visible, and its upper end is fixed to the center of the lower edge of the rear surface 18 on the inner surface side. The auxiliary attraction structure portion 17 of the present embodiment is a substantially fan-shaped member that has a sloped surface that is directed obliquely upward and widens from the upper end to the lower end, and reflects the light L1, for example. It is configured using a possible aluminum diffuse reflector. The auxiliary attraction structure 17 may of course be made of a material other than aluminum.

  The auxiliary attraction structure portion 17 has a contrast enhancement portion C1 (hereinafter also referred to as “visual edge”), which is composed of two adjacent regions R1 and R2 having different light characteristics, on its surface. The contrast enhancing section C1 is illustrated in FIGS. 1A and 3 but is omitted in FIGS. 1B, 2A and 2B. The above-mentioned "two areas" mean, for example, a high-brightness area R1 having a relatively high brightness and a low-brightness area R2 having a relatively low brightness. Then, such an auxiliary attraction structure section 17 passively emits light by the light L1 from the main attraction light source 13, and attracts the insect M by the passive emission. In the auxiliary attraction structure 17, a belt-shaped low-luminance region R2 extending horizontally is formed on the lower end side, and a higher-luminance region R1 is located above the belt-shaped low-luminance region R2. Here, the area of the high-luminance region R1 is set to be approximately the same as the area of the low-luminance region R2, but the area ratio of the two can be set arbitrarily.

  In this insect trap 11, it is necessary to set the attraction force of the light L2 emitted by the auxiliary attraction structure 17 to be lower than the attraction force of the light L1 emitted by the main attraction light source 13. More specifically, the difference in the attraction between the auxiliary attraction structure 17 and the main attraction light source 13 is mainly the light intensity of the high-luminance region R1 having relatively high luminance of the two regions R1 and R2. It is provided by setting it to 1% or more and less than 80% of the light intensity of the attracting light source 13. In the present embodiment, the light intensity of the high brightness region R1 is set to about 30% to 40% of the light intensity of the main attraction light source 13.

  In addition to this, the difference in the attraction between the auxiliary attraction structure 17 and the main attraction light source 13 can be provided by the difference in the wavelengths of the lights L1 and L2 emitted from the auxiliary attraction structure 17 and the main attraction light source 13.

  For example, when the auxiliary attracting structure 17 is configured to include a reflector, the difference in attracting force emits the reflected light L2 having a narrow wavelength band on the longer wavelength side than the wavelength band of the light L1 emitted by the main attracting light source 13. It can be provided by using a reflector.

  Specifically, the light L1 emitted by the main attraction light source 13 of the present embodiment includes a wavelength band in the ultraviolet region (340 nm to 400 nm) that strongly attracts the insect M, but the wavelength is included in the reflected light L2. The auxiliary attraction structure 17 may be configured using a reflector that does not include a band. That is, the auxiliary attraction structure 17 may be configured using a reflector including only a wavelength band of about 400 nm to 700 nm. Alternatively, in the main attraction light source 13 that does not include the wavelength band in the ultraviolet region, for example, if the wavelength band of the light emitted by the main attraction light source 13 is 400 nm to 700 nm, only the wavelength band of 480 nm to 700 nm is included in the reflected light L2. The auxiliary attraction structure 17 may be configured using a reflector. In this case, the reflector may be provided on the surface of the auxiliary attraction structure 17 by coating, pasting, or the like, or the reflector itself may be the auxiliary attraction structure 17.

  In addition, when the auxiliary attracting structure 17 is configured to include a fluorescent substance, the difference in attracting force is the wavelength on the longer wavelength side than the wavelength of the excitation light included in the wavelength band of the light L1 emitted by the main attracting light source 13. It can be provided by using a fluorescent substance that emits fluorescence. Specifically, of the light L1 of about 300 nm to 700 nm emitted by the main attraction light source 13 of the present embodiment, it is excited by the light L1 in the wavelength band of 300 nm to 500 nm and has a wavelength on the longer wavelength side than the excitation light. The auxiliary attraction structure 17 may be configured by using a fluorescent substance that emits the fluorescent light L2 of the band. In this case, the phosphor may be provided on the surface of the auxiliary attraction structure 17 by coating, sticking or the like, or the phosphor itself may be used as the auxiliary attraction structure 17.

  By the way, it is generally known that the auxiliary attraction structure portion 17 having the contrast enhancing portion C1 on the surface has a higher attraction effect as compared with the auxiliary attraction structure portion 17 not having it. For example, in Japanese Patent Application No. 2012-049842, "Attractor, insect trap and insect trap method", it is reported that insects are attracted to a portion having a sharp visual contrast, that is, a visual edge. This visual edge is defined as the contrast due to the ultraviolet region and the wavelength of another region, or the contrast due to two polarized lights having different polarization directions. It is also said that this contrast is arranged at the center of the insect trapping means. On the other hand, in the insect trap 11 of the present embodiment, the visual edge is not applied to the insect trapping means 14 or the main attraction light source 13, but only to the auxiliary attraction structure 17 as a stimulus for attracting the insect M from a long distance. Has been granted.

  This visual edge is not naturally created by the structural edge of the auxiliary attraction structure 17 and the background thereof, but on the surface of the reflector or phosphor that is the auxiliary attraction structure 17. It is created. As the contrast emphasizing section C1 composed of two adjacent regions R1 and R2 having different light characteristics, for example, a high brightness region R1 having relatively high brightness and a low brightness region R2 having relatively low brightness are adjacent to each other. There is one that was arranged. Specifically, such a contrast enhancing portion C1 can be provided by using two materials having different reflectances. The material used for the low-luminance region R2 preferably has an average reflectance of 50% or less of the material used for the high-luminance region R1, and more preferably has an average reflectance of 40% or less. It is particularly preferable that the average reflectance is 30% or less. Such a visual edge can be provided, for example, by the difference in the wavelengths of the lights L1 and L2 emitted from the auxiliary attraction structure 17 and the main attraction light source 13.

  In the insect trap 11 configured in this way, the main attraction light source 13 and the insect trapping unit 14 are arranged inside the main body 12 in a state invisible to the outside of the apparatus. On the other hand, the auxiliary attraction structure portion 17 is arranged outside the opening 16 in the main body 12 and below the opening 16 in a visible state. As shown in FIG. 3, the light L1 emitted from the main attraction light source 13 is applied to the surface of the auxiliary attraction structure 17 via the opening 16 provided in the bottom surface of the main body 12. Then, the reflected light L2 is widely diffused in the front and left and right directions of the device, and as a result, the insect M that saw the light L2 is attracted toward the auxiliary attraction structure 17. Since the contrast enhancement portion C1 is provided on the surface of the auxiliary attraction structure 17, the insect M can be attracted from a long distance even if the attraction is set to be weak. At this point, the insect M cannot yet directly see the light L1 emitted by the main attraction light source 13. When the insect M reaches the vicinity of the surface of the auxiliary attraction structure 17, the light L1 emitted by the main attraction light source 13 can be directly visually recognized for the first time. Here, the attraction force of the light L2 emitted by the auxiliary attraction structure 17 is set to be lower than the attraction force of the light L1 emitted by the main attraction light source 13. It is attracted by the light L1 emitted by and moves toward the opening 16. In other words, the insect M does not stay near the surface of the auxiliary attracting structure 17 but surely enters the inside of the main body 12 and is guided to the insect catching means 14 on both sides of the main attracting light source 13, and finally the insect catching means 14 is reached. Captured by.

[Second Embodiment]
Hereinafter, the insect trap 31 according to the second embodiment of the present invention will be described in detail with reference to FIG. The insect trap 31 is a hanging insect trap 31 mainly intended for outdoor use.

  As shown in FIG. 4, the insect trap 31 includes a main body 32, a main attraction light source 39, insect trapping means 35, and the like. The main body 32 of this embodiment has a three-dimensional shape that can be obtained when a parabola is rotated around the y axis. The main body 32 has a bottom surface 33 having an inwardly sloping slope, and an opening 34 having a size through which an insect M can enter is provided at the center of the bottom surface 33. The main body 32 of this embodiment is formed of a general-purpose synthetic resin material, but may be formed of a material such as metal, paper, or wood as long as it can reliably block the light L1. Good. A hanging hook 42 is provided at the upper end of the main body 32, and the hook 42 can be hung on a string or the like hanging from the ceiling.

  In the internal space 36 of the main body 32, the main attraction light source 39 and the insect trapping means 35 are arranged so as not to be visible from the outside. The main attraction light source 39 in the present embodiment is configured using, for example, a small LED that emits light with a relatively small DC power source, and is fixed to the central portion on the lower surface side of the light source arrangement portion 37 provided in the upper portion of the main body 32. ing. On the other hand, on the upper surface side of the light source arrangement portion 37, an electronic device unit 38 including a control board for controlling the lighting of the main attraction light source 39 and a power source is fixed. The main attraction light source 39 is arranged so as to face the opening 34 located immediately below, and can irradiate the light L1 of about 300 nm to 700 nm in that direction.

  In the case of the insect trap 31 of the present embodiment, a region of the internal space 36 of the main body 32 that is below the opening 34 is a portion that substantially functions as the dry insect trapping means 35. That is, this portion functioning as the insect trapping means 35 becomes narrower as it goes downward, and it is difficult for the insect M that has entered the internal space 36 from the opening 34 to escape. The dry type insect trapping means 35 has an advantage that it is economical because it does not require electric power unlike the electric shock type. In the sticky type, the sticking agent may attach to the captured insect M to cause damage or death, but the dry type insect trapping means 35 does not damage the caught insect M and keeps it alive. There is a merit that you can do it. Of course, an adhesive sheet may be arranged in the internal space 36 of the main body 32 to form an adhesive insect trapping means. In this case, a member such as an adhesive sheet can be arranged at any position as long as it does not block the light L1 emitted by the main attraction light source 39.

  The insect trap 31 includes an auxiliary attraction structure 41 in addition to the main attraction light source 39. The auxiliary attraction structure portion 41 is arranged outside the opening 34 in the main body 32 and in a visible state below the opening 34. The auxiliary attraction structure portion 41 of the present embodiment is a conical member having a sloped surface that faces obliquely upward and having a top facing upward. The maximum diameter of the auxiliary attraction structure portion 41 is substantially equal to the maximum diameter of the main body 32. The bottom surface 33 of the main body 32 and the auxiliary attraction structure 41 are connected to each other by a connecting member 40. In the present embodiment, a plurality of rod-shaped connecting members 40 are used for connection, but the shape and number of the connecting members 40 are not particularly limited and can be arbitrarily changed. Further, the auxiliary attraction structure 41 is configured by attaching a material capable of reflecting the light L1 to the surface of a base material made of, for example, a synthetic resin or the like.

  The auxiliary attraction structure portion 41 has a contrast enhancement portion C1 including adjacent high-luminance region R1 and low-luminance region R2 having different light characteristics on its surface. Then, the auxiliary attraction structure 41 passively emits light by the light L1 from the main attraction light source 39, and attracts the insect M by the passive emission. In the auxiliary attraction structure portion 41, a strip-shaped low-luminance region R2 extending in the horizontal direction is formed on the bottom side, and a higher-luminance region R1 is formed above the strip-shaped low-luminance region R2. The area of the high-luminance region R1 is larger than the area of the low-luminance region R2, and is set here to about 2 to 4 times, for example.

  In this insect trap 31, the attraction force of the light L2 emitted by the auxiliary attraction structure 41 is set to be lower than the attraction force of the light L1 emitted by the main attraction light source 39. Specifically, by setting the light intensity of the high brightness region R1 to be 1% or more and less than 80% (preferably about 30% to 40%) of the light intensity of the main attraction light source 39, the attraction force between the two is made different. I have it. The difference in the attraction between the auxiliary attraction structure 41 and the main attraction light source 39 is the wavelength of the lights L1 and L2 emitted from the auxiliary attraction structure 41 and the main attraction light source 39, as described in the first embodiment. It can also be provided depending on the difference.

  In the insect trap 31 thus configured, the main attraction light source 39 and the insect trapping means 35 are arranged inside the main body 32 in a state invisible to the outside of the apparatus. On the other hand, the auxiliary attraction structure 41 is arranged outside the opening 34 in the main body 32 and in a visible state outside. As shown in FIG. 4B, the light L1 emitted from the main attraction light source 39 is applied to the surface of the auxiliary attraction structure 41 through the opening 34 provided in the bottom surface 33 of the main body 32. Then, the reflected light L2 is widely diffused in all directions of 360 degrees around the device, and as a result, the insect M who saw the light L2 is attracted toward the auxiliary attraction structure 41. In addition, since the contrast enhancement portion C1 is provided on the surface of the auxiliary attraction structure portion 41, the insect M can be attracted from a long distance even if the attraction force is set to be weak. At this point, the insect M cannot yet directly see the light L1 emitted from the main attraction light source 39. When the insect M reaches the vicinity of the surface of the auxiliary attraction structure 41, the light L1 emitted from the main attraction light source 39 can be directly visually recognized for the first time. Here, since the attraction force of the light L2 emitted by the auxiliary attraction structure 41 is set to be lower than the attraction force of the light L1 emitted by the main attraction light source 39, the insect M next receives the attraction light source 39. It is attracted by the light L1 emitted by and moves toward the opening 34. In other words, the insect M does not remain near the surface of the auxiliary attraction structure 41, but reliably enters the inside of the main body 32 and is finally caught by the insect catching means 35.

[Third Embodiment]

  Hereinafter, the insect trap 51 according to the third embodiment of the present invention will be described in detail with reference to FIGS. The insect trap 51 is basically used for the same purpose as the second embodiment and has some common configurations. Therefore, different configurations will be mainly described below.

  As shown in FIG. 5, the insect trap 51 has a main attraction light source 39, an insect trapping means 35, an electronic device unit (not shown), and the like arranged in an internal space 36 of a main body 52 in a state invisible from the outside. The point is that it is common to the second embodiment. By the way, the main body 32 of the second embodiment does not have a particularly separable structure, but the main body 52 of the present embodiment has the light source side portion 53 where the main attraction light source 39 is arranged and the insect trapping means 35. It has a structure that can be separated and exchanged with the insect trap side portion 54. Therefore, for example, when the main attraction light source 39 or the electronic device unit fails, or when the power source in the electronic device unit becomes weak, the light source side portion 53 can be replaced or repaired. .. Further, when the insect trapping means 35 is contaminated or deteriorated, the insect trap side portion 54 can be replaced, washed, disinfected or the like. Therefore, as compared with the case where the light source side portion 53 and the insect trap side portion 54 have an inseparable integral structure, maintenance is easier and convenience is improved. According to this configuration, the insect M captured by the insect trapping means 35 can be easily taken out, and the convenience is also improved in this respect.

  Further, the auxiliary attraction structure portion 41 is a cone-shaped member, is arranged so as to be visible outside and below the opening 34 in the main body 52, and adjacent high-brightness regions having different light characteristics. The insect trap 51 of the present embodiment is also common to the second embodiment in that it has a horizontal strip-shaped contrast enhancing portion C1 including the R1 and the low brightness region R2 on its surface. However, the present embodiment is different in that the position of the low brightness region R2 forming the contrast emphasizing portion C1 is higher than that of the second embodiment.

  Hereinafter, an example in which the present embodiment is more concretely described will be described with reference to FIGS. 6 and 7.

In the present embodiment, by using the hanging insect trap 51 and the like, the effect of attracting the auxiliary attracting structure 41 to the inside of the main body 52 and providing the contrast enhancing portion C1 to the auxiliary attracting structure 41 (visual Experiments were conducted to verify the attractive effect of applying a dynamic edge).
Here, a flying insect M (specifically, a rice moth, a kind of moth, rice yoto) is allowed to freely fly in a dark room and captured by using the following three types of traps. did. As shown in FIG. 6, the “insect trap 3 (example)” is basically the same as the insect trap 51 shown in FIG. 5, and is provided with a main attraction light source 39 and a contrast enhancing portion C1 on the surface. The auxiliary attraction structure section 41 is provided. On the other hand, the “insect trap 2 (Comparative Example 2)” includes the main attraction light source 39 and the auxiliary attraction structure portion 41 not provided with the contrast enhancing portion C1 on the surface. The “insect trap 1 (Comparative Example 1)” includes the main attraction light source 39, but does not include the auxiliary attraction structure 41.

  As the main attraction light source 39, one chip type ultraviolet LED (NS375L-6SVG manufactured by Nitride Semiconductor Co., Ltd.) that emits light of 375 nm was used. The auxiliary attraction structure portion 41 provided with the contrast enhancing portion C1 by reflection has a cone shape with a diameter of 15 cm and a height of 15 cm, and is a high-density polyethylene non-woven sheet manufactured by DuPont Co., Ltd. on its surface "Tyvek (registered trademark; 400 WP)". Is attached so that light can be reflected. Also, a black low-reflective cloth with a width of 3 cm from the top of Tyvek is placed at a position 3 cm from the lower end of the conical structure (Omi Velvet Co., Ltd., cloth high milon lining Bemberg type 12 (where "Bemberg" is Asahi Kasei Fibers Corporation). (Registered trademark of the company)) was attached in a horizontal strip shape. Thereby, the contrast enhancing portion C1 extending in the horizontal direction is provided.

  Next, a flight platform for flying moths was installed in the dark room, and three insect traps were arranged with the angle of 60 degrees centered on the flight platform (see FIG. 6). The flying platform was set to the same height as the lower end (70 cm) of the main body 52 of the insect trap. The distance from the flying platform to the center of each trap was 90 cm. Only one moth was placed on the flying platform and only those flying within 5 minutes were used as experimental data. Individuals that did not fly were reused after a while. Moths flying from the flying platform were photographed with a video camera in the infrared night-vision mode, and the state of the selected light source of the individual and internal intrusion was photographed. At this time, the case of invading the virtual frame of 10 cm around the insect trap is “attract”, and the case of contacting the body 52 of the insect trap or the auxiliary attracting structure 41 is “contact”, and the inside of the body 52 is invaded. The frequency was counted as "capture" in each case. When two or more traps are selected, both are counted. Observation was terminated when the individual once stopped somewhere. However, in most cases, moths attached somewhere and stopped their behavior in about 1 minute. In this experiment, the behavior of 123 moths in total was observed, and the attracting reaction to the trap was observed 144 times, the contact behavior to the trap was 61 times, and the trap by the trap was observed 22 times.

  7A to 7C are graphs showing the results of the above experiment. The vertical axis in FIG. 7(a) shows the attraction rate (%) of each of the three traps, the vertical axis in FIG. 7(b) shows the contact rate (%) of each of the three traps, and FIG. The vertical axis in () indicates the capture rate (%) of each of the three traps.

  Regarding the attracting rate, the insect trap 1 is 20.1%, the trap 2 is 42.2%, the trap 3 is 37.5%, and the trap 1 having no auxiliary attracting structure 41 is attracted. Was the lowest. Further, in the case of the one having the auxiliary attracting structure portion 41, the insect trap 2 without the contrast enhancing portion C1 had a higher attracting rate.

  On the other hand, the proportions of the individuals contacting the insect trap body 52 and the auxiliary attraction structure part 41 were 13.1%, 37.7%, and 49.2% for the insect traps 1, 2, and 3, respectively. The contact rate of the insect trap 3 provided with the contrast emphasizing portion C1 was higher than that of the insect trap 2 not having the contrast emphasizing portion C1. Further, the contact rate of the insect trap 1 without the auxiliary attracting structure 41 was clearly lower than those of these.

  Further, regarding the trapping rate, the trapping rates of the traps 1, 2 and 3 were 4.5%, 36.4% and 59.1%, respectively, and the trapping rate of the trap 3 was also the highest.

  From the above results, it was proved that the auxiliary attracting structure part 41 of the insect trap 3 effectively functions in attracting and capturing. Further, although the auxiliary attraction structure portion 41 contributes to the attraction even when the contrast enhancement portion C1 is not provided, when it is provided, accurate localization is established, so that contact with a closer portion and guidance to the capture portion can be achieved. It became clear that it showed an effect.

  Hereinafter, the effects of the insect traps 11, 31, 51 of the respective embodiments of the present invention will be described. According to the insect traps 11, 31, 51 of the respective embodiments, the insect M is first attracted to the auxiliary attraction structure units 17, 41 from a long distance by the light L2 emitted by the auxiliary attraction structure units 17, 41. Then, the insect M that has reached the vicinity of the auxiliary attraction structure portions 17 and 41 can visually recognize the main attraction light sources 13 and 39 that emit the light L1 having a high attraction force. Therefore, the insect M separates from the auxiliary attracting structure portions 17 and 41 and is then attracted to the main attracting light sources 13 and 39 inside the insect traps 11, 31 and 51, and then captured by the insect trapping means 14 and 35. It will be. In these insect traps 11, 31, 51, since the insect trapping means 14, 35 are not exposed to the outside, the insect M after trapping and the insect M at the moment of trapping are not visible to the user. Therefore, there is an advantage that the user does not feel unclean and uncomfortable.

  Further, since the insect trapping means 14, 35 are arranged inside the insect traps 11, 31, 51, the risk that the trapped insect M escapes or the carcass of the insect M scatters around is reduced.

  Further, by arranging a light source, which often uses light in a short wavelength band including an ultraviolet region, inside the traps 11, 31, 51 as the main attraction light sources 13, 39, the traps 11, 31 , 51 can be made hard to be recognized by a person. Further, it is possible to reduce the psychological burden that the health damage may be caused by directly looking at the ultraviolet light source.

  By the way, in such an insect trap 11, 31, 51, the main attracting light source 13, 39 itself is difficult to be visually recognized by the insect M to be captured. For this reason, there is a concern that the capture performance may be deteriorated, and it is important how to increase the attraction of the auxiliary attraction structures 17, 41. The contrast enhancing portion C1 is provided. Incidentally, in Japanese Patent Application No. 2012-049842, it is shown that the insect M is easily attracted to the edges of ultraviolet and green, and in other documents, the insect M is also attracted to the edges of light and dark. Insect M of various kinds has been reported. The visual edges arranged on the flat surfaces or gentle curved surfaces of the auxiliary attraction structure portions 17 and 41 are more difficult to detect as they are closer to each other. Therefore, since the function of the attracted insect M as a guidance clue is lost, the insect M is not promoted to settle on the auxiliary attracting structure portions 17 and 41. In addition, since there is a difference in the attraction force between the main attraction light sources 13 and 39 and the auxiliary attraction structures 17 and 41 including the visual edges, the insect M does not settle on the auxiliary attraction structures 17 and 41, It can be quickly guided in the direction of the main attraction light sources 13, 39.

  Therefore, by using such insect traps 11, 31, and 51, it becomes possible to reduce the density of flying invasive pests in factories and general households. Thereby, the use of chemical substances for insecticidal and insect control can be reduced. In addition, by using the insect traps 11, 31, 51 at the agricultural site, the pest control cost and labor of the farmer can be reduced. For example, in cabbage cultivation, control of moth pests such as diamondback moth, weevil, and Spodoptera litura is carried out about 10 times per crop, but by using insect traps 11, 31, 51 for prediction of occurrence, it is possible to spray 3 times at the beginning. It is expected to be possible to omit.

  The embodiments of the present invention may be modified as follows.

  The shapes of the main bodies 32 and 52 of the hanging insect traps 31 and 51 are not limited to those of the second and third embodiments, and are shown in, for example, FIGS. It may be cylindrical like the main body 72 in the insect traps 71A to 71D of another embodiment. The auxiliary attraction structure portion 41A of the insect trap 71A shown in FIG. 8A is provided with the contrast enhancing portion C1 having the same pattern as that of the second embodiment by two materials having different reflectances. For example, this pattern may be changed as follows. The auxiliary attraction structure portion 41B of the insect trap 71B shown in FIG. 8B employs a pattern in which three strip-shaped low-luminance regions R2 having a constant width and extending in the horizontal direction are arranged. In the auxiliary attraction structure portion 41C of the insect trap 71C shown in FIG. 8C, a pattern in which the low-intensity regions R2 radially extending around the top are arranged at a plurality of positions is adopted. The extending direction of the strip-shaped low brightness region R2 is not limited to the horizontal direction or the vertical direction, and may be the oblique direction. Further, the strip-shaped low-luminance region R2 is not limited to a linear one, but may be a curved one. In the auxiliary attraction structure portion 41D of the insect trap 71D shown in FIG. 8D, a pattern in which circular low-luminance regions R2 are scatteredly arranged at a plurality of locations is adopted. The circular shape may be replaced by a triangular shape or a quadrangular shape.

  -In the hanging insect trap 31 in the second embodiment, the main body 32 and the auxiliary attraction structure 41 are connected by the plurality of rod-shaped connecting members 40, but the present invention is not limited to this. For example, like an insect trap 91 of another embodiment shown in FIG. 9, these members may be connected to each other using a thread 92 that is a deformable hanging member. Specifically, in the insect trap 91, the upper end side of the thread 92 is connected to the lower surface side of the light source placement portion 37 at a position avoiding the central portion. On the other hand, the lower end side of the yarn 92 that reaches the lower side through the opening 34 is connected to the top portion of the auxiliary attraction structure 41. Therefore, when the insect trap 91 is installed using the hook 42, the thread 92 is stretched and the auxiliary attracting structure 41 is suspended, and is placed outside and below the opening 34 in the main body 32. (See FIG. 9(a)). On the other hand, since the thread 92 becomes loose when the insect trap 91 is removed, the insect trap 91 can be contracted in the up-down direction and can be made compact when not in use (see FIG. 9(b)). ..

  In the insect trap 111 of another embodiment shown in FIGS. 10A and 10B, the insect trap 111 is divided into a light source side portion 113 in which the main attraction light source 115 can be arranged and an insect trap side portion 114 in which the insect trapping means 35 can be arranged. It has a replaceable body 112. At the upper end of the light source side portion 113, for example, an insertion hole for detachably attaching a main attraction light source 115 (for example, a commercially available light) having a light emitting portion 118 at the tip is provided. At the upper end of the insect trap side portion 114, a plate-shaped light source arrangement portion 117 having a through hole 116 in the central portion is arranged. At the time of use shown in FIG. 10B, the light emitting unit 118 arranged inside the main body 112 is fixed in a state invisible from the outside. Further, the light L1 emitted from the light emitting portion 118 is applied to the auxiliary attraction structure portion 41 through the through hole 116 and the opening 34. In the insect trap 111 having such a structure, for example, when the main attraction light source 115 fails, only the main attraction light source 115 can be replaced instead of the entire light source side portion 113. Further, when the insect trapping means 35 is soiled or deteriorated, the insect trap side portion 114 can be replaced. Further, with such a structure, it is possible to use a commercially available light as the main attraction light source 115, which improves convenience.

  -The folding|returning part 132 may be formed in the periphery of the opening 34 like the insect trap 131 of another embodiment shown in FIG. Further, like the insect trap 151 of another embodiment shown in FIG. 11B, a mesh member 152 having a hole through which the insect M can pass may be provided in the opening 34. If these configurations are adopted, there is an advantage that the trapped insect M is hard to escape. Although the material forming the mesh member 152 can be arbitrarily selected, it is preferably a transparent material that allows the light L1 to pass therethrough.

  -As the insect trap 171 of another embodiment shown in FIG. 12, you may employ|adopt the auxiliary attraction|suction structure part 172 of a shape different from the auxiliary attraction structure 17 used in the insect trap 11 of the said 1st Embodiment. .. That is, in the vertical cross section shown in FIG. 3, the surface of the auxiliary attraction structure 17 of the first embodiment is flat, but the auxiliary attraction structure 172 of the insect trap 171 has a concave surface with a curved surface. There is. Therefore, in the case of the insect trap 171, it is possible to enhance the directivity of the light L2 for attracting toward the front of the device.

  In the first embodiment, the structure in which the opening 16 is provided at the bottom of the main body 12 is adopted, but the opening 16 is provided at the upper part of the main body 12 as in the insect trap 191 of another embodiment shown in FIG. 13, for example. It may be one.

  The auxiliary attraction structure 17 of the first embodiment and the auxiliary attraction structure 172 of the other embodiment have a three-dimensional shape, but are not limited thereto. For example, as in the insect trap 211 of another embodiment shown in FIG. 14, a simple flat plate (tongue-shaped) auxiliary attraction structure portion 212 may be used, and the auxiliary attraction structure portion 212 may be arranged so as to project directly below the device.

  In each of the above-described embodiments, the auxiliary attraction structure section that passively emits the light L2 based on the light L1 of the main attraction light source is adopted. However, for example, the auxiliary attraction structure has some light emitting means in itself, You may employ|adopt the auxiliary attraction|suction structure part which can shine actively, without depending on an attraction light source.

  -For example, although the insect trap 11 and the like of the first embodiment described above have an internal power source in the main body 12, for example, the main attraction light source 13 may be made to emit light by using an external power source without having an internal power source. .. In this case, a structure in which an external power supply unit (for example, an outlet insertion unit) is projected from the main body 12 may be adopted. The advantage of the configuration without the internal power source is that it is suitable for downsizing. On the other hand, the advantage of the configuration having an internal power source is that it can be used outdoors without an external power source.

11, 31, 51, 71A, 71B, 71C, 71D, 91, 111, 131, 151, 171, 191, 211... insect trap 13, 39, 115... main attraction light source 14, 35... insect trapping means 17, 41, 41A , 41B, 41C, 41D... Auxiliary attracting structure part 32, 52, 72... Main body 33... (Main body) bottom surface 34... Opening 53, 113... Light source side portion 54, 114... Insect trap side portion 117... Light source placement portion 118... Light emission Part C... Contrast enhancement part M... Insect R1... (high brightness) area R2... (low brightness) area

Claims (9)

A main body having an opening of a size that allows insects to enter, a main attraction light source that irradiates light that attracts the insect toward the opening side, and an insect trapping means that captures the insect attracted by the main attraction light source. In the insect trap, wherein the main attraction light source and the insect trapping means are arranged invisible in the inside of the main body,
A contrast that is arranged outside the opening in the main body in a state in which it is visible from the outside, and is composed of two adjacent regions having different light characteristics, and a low-luminance region in which the luminance is relatively low among the regions is band-shaped. Having an emphasizing portion on its surface, with an auxiliary attracting structure that attracts the insect by active or passive light emission,
The insect trap is characterized in that the attracting force of the light emitted by the auxiliary attracting structure is set to be lower than the attracting force of the light emitted by the main attracting light source.   The insect trap according to claim 1, wherein the main body is separable and replaceable with a light source side portion where the main attraction light source is arranged and a insect trap side portion where the insect trapping means is arranged. With an opening having a size that allows insects to enter, a main body provided with a light source arrangement part capable of arranging a main attraction light source that irradiates light that attracts the insect toward the opening side, and the main attraction light source. Insect trapping means for capturing the attracted insects is provided, and when the main attraction light source is arranged in the light source arrangement portion, the light emitting portion of the main attraction light source and the insect trapping means are invisible inside the body. In an insect trap that can be placed in a simple state,
The low-luminance region, which is arranged outside the opening in the main body in a state visible from the outside and has two adjacent regions having different light characteristics, and has a relatively low luminance is a strip-shaped region. Having a contrast enhancing portion on its surface, and having an auxiliary attracting structure that attracts the insect by active or passive light emission,
An insect trap characterized in that the attracting force of light emitted by the auxiliary attracting structure is set to be lower than the attracting force of light emitted by the main attracting light source.   The auxiliary attraction structure is configured to include a reflector that receives light from the main attraction light source and emits reflected light, or a phosphor that receives light from the main attraction light source and emits fluorescence. The insect trap according to any one of claims 1 to 3.   The difference in the attraction force between the auxiliary attraction structure portion and the main attraction light source is that the light intensity of a high-luminance area having relatively high luminance is the main attraction light source, of the two areas forming the contrast enhancing portion. The insect trap according to claim 4, wherein the insect trap is provided by setting the light intensity to 1% or more and less than 80%. When the auxiliary attracting structure is the reflector,
The difference in the attraction force between the auxiliary attraction structure and the main attraction light source uses the reflector that emits the reflected light in the wavelength band narrower to the long wavelength side than the wavelength band of the light emitted by the main attraction light source. The insect trap according to claim 4, wherein the insect trap is provided by. When the auxiliary attraction structure is the phosphor,
The difference in the attraction force between the auxiliary attraction structure and the main attraction light source,
It is provided by using the said fluorescent substance which emits the said fluorescence of a wavelength longer wavelength side than the wavelength of the excitation light contained in the wavelength band of the light which the said main attraction light source emits. Insect trap described. The opening is provided on the bottom surface of the main body,
The insect trap according to any one of claims 1 to 7, wherein the auxiliary attraction structure is arranged outside and below the opening in the main body.   9. The insect trap according to claim 8, wherein the auxiliary attraction structure is a substantially pyramid that is arranged such that the top thereof faces upward.