JP2017209083A - Insect-catching device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an insect-catching device for ejecting an ultraviolet light of a high attraction of a noxious insect efficiently.SOLUTION: An insect-catching device comprises: a housing having an opening and a collection part 20 for collecting a noxious insect having invaded from an opening; a lamp 16 arranged in the housing for ejecting an ultraviolet light; and a reflection board 13 for reflecting an ultraviolet light ejected from the lamp toward the opening. The reflection board has a multilayer film for reflecting the light of a wavelength of a region, to which an ultraviolet light belongs, and for transmitting a light of another wavelength.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an insect trapping device.

  2. Description of the Related Art Conventionally, as an insect trapping device for attracting and capturing pests, an insect lamp for attracting the insects is provided, and an insect trap attracted to the insect lamp by an adhesive sheet or the like is known. . In general, insects have a property (phototacticity) that approaches the direction in which light exists, and many pests such as flies have a property that approaches ultraviolet light among light. For this reason, it is common to use the lamp which emits the ultraviolet light of wavelength 365nm as an insect lamp used for such an insect trap.

JP 2006-136276 A

  In recent years, as an insect trapping apparatus used in a general house or a restaurant, there is an increasing demand for an insect trapping apparatus that is small in size and has an appearance adapted to the surrounding environment. In such an insect trapping device, for example, an aluminum reflector may be used when light emitted from an insect light provided inside the housing is directed to the outside of the housing.

  As a reflector used in such an insect trapping device, it is required to efficiently reflect ultraviolet light having a wavelength of about 365 nm which is preferred by pests. Although the reflection efficiency of ultraviolet light in aluminum reflectors is relatively high, aluminum itself has the property of being easily corroded and rusted. Therefore, reflectors are used in food processing factories and restaurants where food is handled. It was not suitable as a material. Therefore, it is conceivable that aluminum is subjected to a surface treatment such as an oxide film, or a stainless steel reflection plate having higher corrosion resistance is used as a material. However, in this case, the reflection efficiency is lowered. Further, the surface treatment increases the manufacturing cost, and even if the surface treatment is performed, corrosion cannot be completely prevented.

  It is an object of the present invention to provide an insect trapping device that efficiently emits ultraviolet light that is highly attracting insect pests.

  The main invention for achieving the above-mentioned object is a housing having an opening, a collection part for collecting a pest that has entered through the opening, a lamp that is arranged inside the housing and emits ultraviolet light, A reflecting plate that reflects the ultraviolet light emitted from the lamp toward the opening; the reflecting plate reflects light having a wavelength in a region to which the ultraviolet light belongs and transmits light having another wavelength; An insect trapping device having a multilayer film.

  Other characteristics of the present invention will be made clear by the description and drawings described later.

  ADVANTAGE OF THE INVENTION According to this invention, it is possible to radiate | emit efficiently the ultraviolet light with a high attracting property of a pest about an insect trap apparatus.

FIG. 1A to FIG. 1F are hexahedral views showing the appearance of the insect trapping apparatus 1 according to the present embodiment. FIG. 2 is a perspective view showing an appearance of the insect trapping apparatus 1 according to the present embodiment. 3 is a cross-sectional perspective view taken along line AA in FIG. FIG. 4 is an exploded perspective view showing a state in which the collecting unit 20 of the insect trapping apparatus 1 according to this embodiment is removed. FIG. 5 is a schematic explanatory diagram of the reflector 13. FIG. 6 is a schematic explanatory diagram of a vacuum deposition apparatus 30 for coating a thin film on a substrate. FIG. 7 is a diagram showing the results of a reflection characteristic test performed for each type of reflector.

  At least the following matters will be apparent from the description and drawings described below.

  A housing having an opening, and a collection unit that collects a pest that has entered through the opening; a lamp that is disposed inside the housing and emits ultraviolet light; and the ultraviolet light emitted from the lamp, A reflection plate that reflects toward the opening, and the reflection plate includes a multilayer film that reflects light having a wavelength in the region to which the ultraviolet light belongs and transmits light having other wavelengths. Becomes clear. According to such an insect trapping device, it is possible to efficiently emit ultraviolet light having a high pest attractability.

  The multilayer film is preferably a vapor deposition film formed on a resin substrate. Thereby, it is possible to easily follow the reflector even on a complicated curved surface such as a paraboloid.

  The reflecting plate is preferably made of a dichroic mirror. As a result, it is possible to efficiently emit ultraviolet light that is highly attracting insect pests.

  The wavelength of the region to which the ultraviolet light belongs preferably includes 365 nm. As a result, it is possible to efficiently emit ultraviolet light that is highly attracting insect pests.

  It is desirable to further include another lamp disposed inside the housing and emitting light including white light. Thereby, it is possible to soften the visible light component close to the ultraviolet region.

  A housing having an opening and a collecting portion for collecting a pest that has entered through the opening; a socket disposed inside the housing for holding a lamp that emits ultraviolet light; and the ultraviolet light emitted from the lamp. A reflection plate that reflects light toward the opening, and the reflection plate includes a multilayer film that reflects light of a wavelength in a region to which the ultraviolet light belongs and transmits light of other wavelengths. The insect trapping device becomes clear. According to such an insect trapping device, it is possible to efficiently emit ultraviolet light having a high pest attractability.

=== This Embodiment ===
FIG. 1A to FIG. 1F are hexahedral views showing the appearance of the insect trapping apparatus 1 according to the present embodiment. 1A is a front view, FIG. 1B is a top view, FIG. 1C is a bottom view, FIG. 1D is a left side view, FIG. 1E is a right side view, and FIG. 1F is a rear view. First, the basic configuration of the insect trapping apparatus 1 according to the present embodiment will be described, and then the reflector 13 which is a characteristic configuration of the present embodiment will be described.

  In the following description, each direction is defined as in the directions of the six views of FIGS. 1A to 1F. That is, the direction of the line connecting the center of the outline of the upper surface and the center of the outline of the bottom in FIG. 1A is “up and down direction”, and the side (bottom) in FIG. 1C as viewed from the front (front) is “down”. The opposite side (FIG. 1B side) is “upper”. In the present embodiment, the vertical direction is the vertical direction. In addition, the “lower surface” may be referred to as a “bottom surface”. The direction perpendicular to the vertical direction in FIG. 1A is the “left-right direction”, the side of FIG. 1E (right side) as viewed from FIG. 1A (front) is “right”, and the reverse side (FIG. 1D side) is “left”. . Further, the vertical direction and the direction perpendicular to the horizontal direction are referred to as “front-rear direction”, the front side in FIG. 1A is referred to as “front”, and the reverse side (FIG. 1F side) is referred to as “rear”.

<Basic configuration of insect trap 1>
The insect trap 1 is a device that attracts and captures insects such as flies. The insect trap 1 is composed of a main body 10 and a detachable trap 20. In addition, FIG. 1A-FIG. 1F has shown the insect trap apparatus 1 of the state with which the collection part 20 was mounted | worn. The insect trapping apparatus 1 with the trapping unit 20 removed will be described later.

  The insect trapping device 1 has a horizontally long spindle shape when viewed from the front, and is provided with an opening 11 at the center upper portion. The casing of the insect repellent device 1 is composed of a main body 10 and a collection unit 20. The opening 11 is a gap between the main body 10 and the collection unit 20 on the front surface of the insect repellent device 1. The opening 11 is a light emission port for attracting pests and is a pest entry port. That is, light is emitted from the opening 11, and a pest attracted by the light enters the insect capturing device 1 from the opening 11 and is captured by an insect capturing sheet or the like provided on the tray of the collecting unit 20. A reflection plate 13 is provided on the inner wall surface of the main body 10 and is visible from the front through the opening 11. Note that the basic shape of the insect trapping apparatus 1 is not limited to this as long as light leaks from the opening. Moreover, if the housing | casing of the insect repellent apparatus 1 has an opening and the collection part which collects the pest which invaded from the opening, it will not be restricted to this.

  A switch 14 is provided on the bottom surface of the main body 10. The switch 14 can be switched on / off of a lamp 16 to be described later.

  A fixing bracket 15 for fixing the insect trapping device 1 to a wall or a pillar is provided on the back surface of the main body 10. The fixing metal fitting 15 is a receiving metal fitting, and the catching device 1 is fixed to the wall or the column by fitting a hook metal fitting (not shown) provided on the wall side or the column side into the fixing metal fitting 15 (receiving metal fitting).

  FIG. 2 is a perspective view showing an appearance of the insect trapping apparatus 1 according to the present embodiment. 3 is a cross-sectional perspective view taken along line AA in FIG. An internal space is formed by surrounding the main body 10 and the collection unit 20, and the lamp 16 is provided in the internal space.

  The lamp 16 is a straight tube type light source that emits ultraviolet light, particularly light including a wavelength around 365 nm which is preferred by pests. For example, the lamp 16 is an ultraviolet lamp that emits light having a peak near a wavelength of 365 nm. In FIG. 2, two lamps 16 are provided at the front and rear, but the shape, arrangement method, and number of the lamps 16 are not limited to this.

  The inner wall surface 12 on the main body 10 side of the internal space may be formed with a curved surface, particularly a parabolic surface. A reflector 13 is provided along the inner wall surface 12. For this reason, the reflecting plate 13 may also be formed with a curved surface, particularly a parabolic surface. By forming the reflecting plate 13 with a parabolic surface, the light emitted from the focal point is reflected as a light bundle parallel to the axis of the parabola. That is, the light emitted from the lamp 16 is reflected by the reflecting plate 13 and is emitted as substantially parallel light from the opening 11. Thereby, light of a predetermined wavelength (here, 365 nm, a wavelength capable of attracting pests) out of the light emitted from the lamp 16 can be efficiently irradiated from the opening 11. The other description about the reflecting plate 13 is mentioned later.

  FIG. 4 is an exploded perspective view showing a state in which the collecting unit 20 of the insect trapping apparatus 1 according to this embodiment is removed. Sockets 17 are provided at both ends of the lamp 16 of the main body 10. A socket cover 18 is provided on the top of the socket 17. The socket 17 is a portion for connecting wirings of the lamp 16. The socket cover 18 is a cover for protecting the socket 17 from dirt and the like.

  As shown in FIG. 4, the collection unit 20 is configured to be detachable from the main body unit 10. The collection unit 20 includes a tray 21 and a cover 22. The tray 21 is a part that collects pests that have entered the internal space from the opening 11. The tray 21 is a part that forms the bottom surface of the internal space when the collection unit 20 is attached to the main body unit 10.

  An insect catching sheet (not shown) is provided on the upper surface of the tray 21. This insect trapping sheet has adhesiveness on the surface on the inner space side, and attaches and captures pests that have entered the inner space from the opening 11. For example, the insect repellent sheet is an adhesive sheet. This insect trapping sheet may be replaceable so as to be removable.

  The cover 22 is a part that covers the tray 21. In a state where the collection unit 20 is mounted on the main body unit 10, the pests collected on the bottom surface of the tray 21 are hidden by the cover 22 so that the pests cannot be seen from the outside. The cover 22 also has a function of hiding the wiring of the socket 17 and the lamp 16.

<Reflector 13>
FIG. 5 is a schematic explanatory diagram of the reflector 13. The reflecting plate 13 may be formed of a dichroic mirror. The reflecting plate 13 reflects light having a wavelength of around 365 nm with high efficiency and transmits light having other wavelengths. The reflected light on the reflecting plate 13 is emitted outside from the opening 11 of the insect capturing device 1, and the transmitted light on the reflecting plate 13 is absorbed by the reflecting plate 13 itself and the inner wall surface 12. Thus, the ultraviolet light emitted from the lamp 16 can be efficiently reflected by the reflector 13.

  The reflection plate 13 is configured by coating a substrate with a thin film that reflects light having a wavelength of around 365 nm with high efficiency and transmits light of other wavelengths. This thin film is formed in a multilayer shape, and constitutes a multilayer film. That is, the reflecting plate 13 may be configured by coating the substrate with a multilayer film that reflects light having a wavelength of around 365 nm with high efficiency and transmits light having other wavelengths.

  FIG. 6 is a schematic explanatory diagram of a vacuum deposition apparatus 30 for coating a thin film on a substrate. As a technique for coating the substrate with a thin film, vacuum deposition is used. Vacuum vapor deposition is performed in the vacuum vessel 31. First, the vapor deposition material M is vaporized as the vapor deposition material particles 33 by heating with a heater. The vapor deposition material particles 33 float in the vacuum container 31 and adhere to the substrate 31, thereby forming a thin film having a minute particle level. In addition, although the multilayer film of the reflector 13 of this embodiment is a vapor deposition film, if the light of wavelength 365nm vicinity can be reflected with high efficiency, it will not be restricted to a vapor deposition film.

  When the reflecting plate 13 is made of stainless steel or aluminum, it is difficult to fit the reflecting plate 13 along the inner wall surface 12 formed of the paraboloid described above. As a material of the substrate 31 used in the insect trap 1 of this embodiment, a resin material such as an acrylic resin or a thermoplastic plastic is used. These resin materials are easy to bend and easily fit along the inner wall surface 12 having a complicated shape such as a paraboloid. Therefore, it is desirable that the multilayer film of the reflecting plate 13 is a vapor deposition film formed on a resin substrate.

  FIG. 7 is a diagram showing the results of a reflection characteristic test performed for each type of reflector. There are three types of reflectors: AS (Stylene AcryloNitrille copolymer) resin reflector, aluminum reflector, and reflector used in the collection device 1 of this embodiment (referred to as a dichroic mirror reflector in FIG. 7). Were prepared, and the reflectance for each wavelength of light was measured. As shown in FIG. 7, it can be seen that the dichroic mirror reflector among the three kinds of reflectors can reflect light with a wavelength of around 365 nm with the highest efficiency. It can be seen that the aluminum reflector can reflect light in the vicinity of a wavelength of 365 nm with the efficiency next to that of the dichroic mirror reflector.

  However, although the reflection efficiency of ultraviolet light on aluminum reflectors is relatively high, aluminum itself has the property of being easily corroded and rusted, so in food processing factories and restaurants where food is handled, It was not suitable as a material for the reflector. Therefore, it is conceivable that aluminum is subjected to a surface treatment such as an oxide film, or a stainless steel reflection plate having higher corrosion resistance is used as a material. However, in this case, the reflection efficiency is lowered. Further, the surface treatment increases the manufacturing cost, and even if the surface treatment is performed, corrosion cannot be completely prevented. On the other hand, both the reflection efficiency and the corrosion resistance can be improved with the reflection plate 31 in which a multilayer film having a high reflection efficiency of light in the ultraviolet region is formed on the substrate 31 described above.

<Lamp 16>
The ultraviolet light lamp used for the lamp 16 usually emits pale light. For this reason, when an insect capturing device including an ultraviolet light lamp is provided in a restaurant or the like, this pale light may impress the presence of a pest and may give an unpleasant impression to customers of the restaurant. Therefore, the insect trapping apparatus 1 according to the present embodiment may be configured by a lamp that emits white light for one of the two lamps 16 provided. Here, the white light is light in which light (colors) of all wavelengths in the visible region are almost uniformly mixed and does not give a sense of color. Moreover, white light may be the light of the room illumination normally used in a general house. With this configuration, it is possible to soften the pale light of the ultraviolet lamp. If it does so, it will relieve the impression of an insect lamp, and it can prevent giving an unpleasant impression to the customer of a restaurant.

  In addition, the thin film of the reflection plate 13 of this embodiment suppresses reflection of light in the visible light region (having a wavelength of about 380 nm to about 780 nm) by transmitting light having a wavelength other than light having a wavelength of around 365 nm. . Thereby, since it can suppress that the image of lamp | ramp 16 itself is reflected in the reflecting plate 13, it will relieve the impression of an insect light, and it can suppress giving an unpleasant impression to the restaurant customer.

<Comparison verification test of reflector>
In order to clarify the effect of the reflector of this embodiment on the number of insects captured, a comparative verification test with a conventional reflector was performed using flies. The reflector of the insect device according to this embodiment reflects light having a wavelength of around 365 nm with high efficiency on a substrate made of AES (acrylonitrile, ethylene-propylene-diene, styrene) resin material, and reflects light of other wavelengths. A multilayer film that permeates is coated. The reflector of the comparative insect device is a reflector made of AES resin without a multilayer coating. Insect capturing devices in which the reflectors of the present embodiment and the comparative example were installed in the housing were prepared, and the number of flies captured was measured.

  The comparative verification test was conducted by a laboratory test in a test room. The size of the test room is 7.2 m long, 2.7 m wide, 2.3 m high, and the room temperature is about 25 degrees Celsius. The insect trapping device of this embodiment is installed at a height of 1.5 m from the floor near one wall of the test room (near the wall having a width of 2.7 m), and a height of 1.5 m from the floor near the other wall Furthermore, the insect trapping apparatus of the comparative example was installed. Two types of flies were used for the test: house flies and fruit fly (hereinafter referred to as fleas), and 100 individuals were released from the center floor of the test room. Twenty-four hours after the release, insect catching sheets installed in the catching devices of this embodiment and comparative examples were collected and the number of catches was counted. During the test period, the indoor lighting was constantly turned on, and a repeated test was performed in which the position of the insect trapping apparatus of this embodiment and the comparative example was changed and carried out a total of two times. The evaluation results are as shown in Tables 1 and 2 below.

  The total number of houseflies captured in this embodiment was 109 individuals, and 81 in the comparative example. When the significance level p was evaluated by binomial test at 5%, the number of catches of the insect trapping apparatus of the present embodiment was significantly larger than the number of catches of the trapping apparatus of the comparative example. On the other hand, the total number of flies captured was 35 individuals in the present embodiment and 22 individuals in the comparative example, and the number of captures also tends to be biased in this embodiment. In addition, regardless of the location of the insect trapping device, the number of traps of the trapping device of the present embodiment tended to be larger than the trapping device of the comparative example, and in particular, a significant difference was observed in the first test of fleas. . From these results, it can be said that the insect trapping apparatus of the present embodiment can capture more flies than the insect trapping apparatus of the comparative example.

=== Other Embodiments ===
The above-described embodiments are for facilitating the understanding of the present invention, and are not intended to limit the present invention. The present invention can be modified and improved without departing from the gist thereof, and it goes without saying that the present invention includes equivalents thereof.

DESCRIPTION OF SYMBOLS 1 Insect trapping device 10 Main body part 11 Opening part 12 Inner wall surface 13 Reflector 14 Switch 15 Fixing metal fitting 16 Lamp 17 Socket 18 Socket cover 20 Collection part 21 Tray, 22 Cover 30 Vacuum deposition apparatus 31 Vacuum container 32 Substrate 33 Vapor deposition material particle

Claims (6)

A housing having an opening and a collection part for collecting a pest that has entered through the opening;
A lamp disposed inside the housing and emitting ultraviolet light;
A reflector that reflects the ultraviolet light emitted from the lamp toward the opening;
The insect trapping device, wherein the reflector has a multilayer film that reflects light having a wavelength in a region to which the ultraviolet light belongs and transmits light having other wavelengths.   The insect trapping apparatus according to claim 1, wherein the multilayer film is a vapor deposition film formed on a resin substrate.   The insect trapping device according to claim 1, wherein the reflecting plate is made of a dichroic mirror.   The insect trapping device according to claim 1, wherein the wavelength of the region to which the ultraviolet light belongs includes 365 nm.   The insect trapping apparatus according to any one of claims 1 to 4, further comprising another lamp that is disposed inside the housing and emits light including white light. A housing having an opening and a collection part for collecting a pest that has entered through the opening;
A socket that is disposed inside the housing and holds a lamp that emits ultraviolet light; and
A reflector that reflects the ultraviolet light emitted from the lamp toward the opening;
The insect trapping device, wherein the reflector has a multilayer film that reflects light having a wavelength in a region to which the ultraviolet light belongs and transmits light having other wavelengths.

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