Resin molded body for repelling flying insect pests

A dragonfly-shaped resin molded body with a double pendulum motion replicates complex flight movements, addressing the limitations of existing repellents by providing a safe and effective insect repellent solution.

WO2025220488A1PCT designated stage Publication Date: 2025-10-23EIKYU CO LTD
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Patent Information

Application Number
PCT/JP2025/013435
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-04-18
Filing Date
2025-04-01
Publication Date
2025-10-23

AI Technical Summary

Technical Problem

Existing insect repellent technologies, such as sprays and electronic devices, pose health risks and are not easily usable by all age groups due to chemical concerns and complexity, while methods mimicking dragonfly flight movements are limited in effectiveness without accurately replicating complex, non-periodic flight patterns.

Method used

A resin molded body shaped like a dragonfly with specific color tones and equipped with a strap connecting member to perform double pendulum motion, replicating the complex flight movements of dragonflies, providing a natural and chemical-free repellent solution.

Benefits of technology

The resin molded body effectively repels flying pests by mimicking dragonfly flight patterns, offering a safe, long-lasting, and easy-to-use solution that is suitable for various environments, including those in close contact with nature.

✦ Generated by Eureka AI based on patent content.

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Abstract

The purpose of the present invention is to provide a flying insect pest-repellent resin molded body for repelling flying insect pests without using a chemical. Provided is a resin molded body exhibiting effective flying insect pest-repellent properties by having characteristic morphology of a natural enemy that preys on flying insect pests and the like and also by moving irregularly and aperiodically in response to a movement of a person, such that the resin molded body having the characteristic morphology of the natural enemy flies, when the resin molded body capable of moving like a double pendulum is simply attached to an item of personal belongings.
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Description

Flying insect repellent resin molding

[0001] The present invention relates to a resin molded article having flying pest repellency that keeps flying pests such as mosquitoes, midges, horseflies, bees, and flies away from humans, and more specifically to a flying pest repellent resin molded article that has the external characteristics of insects that prey on mosquitoes, midges, horseflies, bees, and flies, as well as complex, non-periodic flight movements.

[0002] Today, with health-conscious people seeking opportunities to connect with nature and engaging in outdoor activities such as camping and hiking, there has been an increase in damage caused by flying pests such as mosquitoes, midges, horseflies, wasps, and flies (hereinafter referred to as "flying pests"), including insect bites, blood-sucking, and even intrusion into the ear canal. While insect repellent sprays have traditionally been used to spray insecticides directly onto exposed skin when outdoors, they have not been easily used by everyone, from children to adults, due to concerns about allergies to the insecticides and the risk of the insecticides remaining on the skin. In response to this, rubber molded articles have been developed that retain the flying pest repellent components and are easily worn, providing flying pest repellent properties through the evaporation of the active ingredients (Patent Document 1). However, the medicinal odor of the insect repellent components has made them unsuitable for outdoor use, particularly in areas where people are in close contact with nature.

[0003] Meanwhile, there are techniques for exterminating flying pests that focus on the predator-prey relationship in the insect food chain, and these are widely used, particularly in the fields of plant cultivation and horticulture. Focusing on this predator-prey relationship, flying pest repellent techniques have been disclosed that utilize insects that are natural enemies of flying insects and prey on them. For example, there is a flying pest repellent that uses a picture of a giant dragonfly, which preys on flying pests (Patent Document 2). Dragonflies, such as dragonflies, prey on flying pests in the air while flying. It has been disclosed that hanging a picture of a dragonfly is used to improve the effectiveness of insect repellents. However, simply hanging a picture of a dragonfly does not mimic the complex, non-periodic flight movements of an actual dragonfly, so the effectiveness of the repellent is limited.

[0004] In addition to simple eyes that sense the intensity of light, insects possess uniquely structured compound eyes, which are known to be sensitive to the movements of living organisms (moving objects). Indeed, a technology utilizing the structure of insect eyes to acquire spatial information on the subject using a compound eye imaging device (Patent Document 3) and a technology using compound eye lenses to detect the movement status of living organisms (moving objects) (Patent Document 4) have been disclosed. The acquisition of spatial information and movement status using compound eyes is possessed by both predator and prey insects, and prey insects are sensitive to the complex, non-periodic flight movements of dragonflies in addition to the characteristic morphology of predator insects. Reproducing the "complex, non-periodic flight movements" of dragonflies, which have a characteristic morphology, during flight would be an effective technique for repelling flying pests. However, no simple and easy-to-use technology has been developed to achieve this.

[0005] Instead of reproducing this complex, non-periodic flight movement, a mosquito control device has been reported that uses a wing-sound playback device to repel mosquitoes using pre-recorded dragonfly wing sounds (Patent Document 5). Conventional flying pest repellent technologies, such as insect repellent sprays and volatile component insect repellents, have the problem of using chemicals and therefore the risk of chemical damage, and instead of hanging dragonflies that prey on flying pests, the only method available is to use electronic devices such as wing-sound playback devices that reproduce the complex, non-periodic flight movement of actual dragonflies, which poses a problem for easy use by everyone, from children to adults.

[0006] Japanese Patent No. 5832649 Utility Model Registration No. 3239252 Japanese Patent No. 6257285 Japanese Patent No. 5761557 Japanese Patent Laid-Open No. 7-255352

[0007] The present invention has been made in view of the problems with the insect repellent devices and insect repellent methods of the above-mentioned prior art, and aims to solve these problems and make them easier to use. It aims to provide a resin molded body that has a shape characteristic of natural enemies that prey on flying pests and is capable of double pendulum motion, and that has effective flying pest repellency by simply attaching it to an object in one's surroundings, so that the resin molded body with a shape characteristic of natural enemies reproduces the complex, non-periodic flight movements of flying insects, just like flying insects, in response to human movements.

[0008] To solve the problems with the insect repellent devices and insect repellent methods of the above-mentioned prior art, we focused on the giant dragonfly, one of the three species of dragonfly that are natural enemies of flying pests, such as the Japanese dragonfly, the Siberian dragonfly, and the bush dragonfly, and created a resin molded body by optimizing the color tone of the warning eyes on the head and the color tone of the yellow band on the abdomen, so that the distinctive external features of the predatory insect would be emphasized and would be an effective external "attention" for the flying pests it preys upon. Furthermore, we developed a resin molded body that is equipped as a component with a strap connecting member that enables double pendulum motion so that the resin molded body can perform the complex, non-periodic flight motion of a flying dragonfly, and in addition to this complex, non-periodic flight motion, the wings can reflect light in a complex manner, resulting in the development of a resin molded body with flying pest repellency.

[0009] The flying pest repellent resin molded body of the present invention is a flying pest repellent resin molded body simulating a giant dragonfly, the flying pest repellent resin molded body having a double pendulum structure consisting of a resin molded body consisting of a head, thorax, and abdomen, and a strap connecting member, the head has two spherical eyes with a metallic luster and a head ring hook between the two eyes, the thorax has an inclined base, wings, and a thoracic ring hook on the upper surface, the thorax and the abdomen are black with yellow bands, the wings have a transparent, smooth surface and each consists of a pair of forewings and hindwings, the wings are fixed to the inclined base with a thoracic ring hook, one end of the strap connecting member is rotatably connected to the head ring hook or the thoracic ring hook, and the other end can be rotatably connected to clothing, miscellaneous goods, personal belongings, and articles, The strap connecting member has a rotatable first mass point connecting joint between the one end and the other end, which serves as a first mass point; the first mass point of the strap connecting member and the resin molded body, which serves as a second mass point, are capable of double pendulum motion; the wings reflect light by their transparent and smooth surfaces; and the wings perform complex, non-periodic flight movements due to the double pendulum motion.

[0010] The eyeballs of the flying pest repellent resin molding of the present invention have a blue-green metallic luster due to the application of pearl resin or metallic pearl paint, and the blue-green color is characterized by an L* value of 50 to 60, an a* value of -40 to -30, and a b* value of -7 to 3 in the L*a*b* color system color index (standard light source D65, viewing angle 10 degrees).

[0011] The wings of the flying pest repellent resin molded body of the present invention are each a pair of two forewings and hind wings that are attached on the same plane at an angle of 5 to 20 degrees from the horizontal, or the forewings and hind wings are staggered, with the forewings angled 15 to 30 degrees downward and the hind wings angled 15 to 30 degrees upward from the horizontal, or the forewings angled 15 to 30 degrees upward and the hind wings angled 15 to 30 degrees downward.

[0012] The abdomen of the flying pest repellent resin molded product of the present invention is cylindrical, with one end joined to the thorax and the other end of the cylinder being spindle-shaped, the abdomen is black with at least six yellow bands, and the yellow bands have an L* value of 97 to 100, an a* value of -15 to -22, and a b* value of 72 to 94 in the L*a*b* color system color index (standard light source D65, viewing angle 10 degrees).

[0013] The strap connecting member of the flying pest repellent resin molded body of the present invention is characterized in that a first connecting joint, a first strap portion, a first mass point connecting joint, a second strap portion, and a second connecting joint are each independently rotatably connected in this order, the first connecting joint being one end of the strap connecting member is rotatably connected to the head ring hook or the chest ring hook of the resin molded body, and the second connecting joint being the other end of the strap connecting member is rotatably connectable directly or indirectly to clothing, miscellaneous goods, portable items, and articles.

[0014] As a predatory insect, the shape and color tones emphasize its characteristic parts, and the complex, non-periodic flight movements made possible by the highly flexible attachments allow the flying pests that it preys upon to become aware of the warning colors and characteristic flight movements, thereby providing an insect repellent effect that relies on natural enemies rather than on insect repellents that use volatilized chemical substances or electronic devices.

[0015] Because it is harmless to the human body, it can be used anywhere, even on areas that come into contact with the skin, is gentle on the environment and the human body, has a long-lasting effect, and simply by attaching it to something the user owns or wears, it repels insects by performing complex, non-periodic flying movements in accordance with the user's movements, an effect not found in conventional insect repellents.

[0016] This is a diagram of a resin molded body modeled after a giant dragonfly. It is a diagram of a strap connecting member. In the diagram, rotatable connections are represented by rings. It is a diagram of the normal vibration of a double pendulum. (1) The two pendulums swing in the same phase, and (2) The two pendulums swing in opposite phases.

[0017] Preferred embodiments for carrying out the present invention will be described in detail below. Note that the embodiment described below is an example of a typical embodiment of the present invention, and the scope of the present invention should not be construed as being narrowed by this.

[0018] One embodiment of the flying pest repellent resin molded body of the present invention is a resin molded body 1 modeled after a giant dragonfly. As shown in FIG. 1 , the resin molded body 1 comprises a head 10, a thorax 20, an abdomen 30, and wings 40. The head 10 has two eyeballs 11 corresponding to compound eyes, with a head circular ring hook 12 between the eyeballs 11. A downward-facing inclined base 21 is connected to the upper surface of the thorax 20 from the head to the abdomen. Wings 40, each consisting of a pair of forewings 41 and hindwings 42, are attached to the upper surface of the inclined base 21. The wings 40 are secured to the upper surface of the inclined base 21 by a thoracic circular ring hook 22. The thoracic circular ring hook 22 can also be used to secure the wings 40 via a washer. The wings 40 can also be adhesively secured to the inclined base 21. The mass of the head circular ring hook 12 can be adjusted so that the thoracic circular ring hook 22 is the center of gravity. In the resin molded body 1, the head 10, chest 20, abdomen 30, and inclined base portion 21 can be molded integrally.

[0019] As another embodiment, an abdominal circular ring hook 32 can be further provided at the end of the abdomen 30 on the side not joined to the chest 20. The mass of the abdominal circular ring hook 32 or the mass of the head circular ring hook 12 can be adjusted so that the chest circular ring hook 22 becomes the center of gravity.

[0020] The size of the resin molded body 1 may be, for example, about the same as that of a giant dragonfly, and the body length consisting of the head 10, thorax 20, and abdomen 30 may be 80 to 120 mm. In the case of a red dragonfly, the body length may be 50 to 100 mm. Furthermore, the length of each wing 40 may be 50 to 70 mm. The mass of the resin molded body 1 is, for example, 5 to 20 g. The mass of the resin molded body 1 is preferably 5 to 10 g.

[0021] 2 , the strap connecting member 100 is configured such that a first connecting joint 110, a first strap portion 113, a first mass point connecting joint 120, a second strap portion 123, and a second connecting joint 130 are connected in this order so as to be independently rotatable. The first connecting joint 110, which is one end of the strap connecting member 100, is rotatably connected to the head circular ring hook 12 or the chest circular ring hook 22 of the resin molded body 1, and the second connecting joint 130, which is the other end of the strap connecting member 100, can be rotatably connected directly or indirectly to clothing, miscellaneous goods, personal belongings, or an article 300.

[0022] The connection structure of the strap connecting member 100 will be described in more detail with reference to Figure 2. One end of the first connecting joint 110 is rotatably connected to a chest circular ring hook 22 fixed to an inclined base 21 on the upper surface of the chest 20. The other end of the first connecting joint 110 is rotatably connected to one end of a first strap 113.

[0023] The other end of the first strap 113 is rotatably connected to one end of a first mass point connecting joint 120. The other end of the first mass point connecting joint 120 is rotatably connected to one end of a second strap 123.

[0024] The other end of the second strap 123 is rotatably connected to one end of the second connecting joint 130. The other end of the second connecting joint 130 is rotatably attached to the clothing, miscellaneous goods, personal belongings, or article 300 of the user using the flying pest repellent resin molded product.

[0025] The clothing, miscellaneous goods, and personal items of the user's clothing, miscellaneous goods, and personal items 300 to which the second connecting joint 130 can be rotatably attached include clothing such as jackets and trousers, miscellaneous goods such as hats and pandanas worn, and personal items such as backpacks, bags, and belts. Furthermore, the items include, for example, verandas, windows of buildings, outdoor tents, and trees, to which the flying pest repellent resin molding is attached in order to prevent flying pests from entering rooms, etc.

[0026] The first mass point connection joint 120 can function as the first mass point 400 of the double pendulum shown in Fig. 3 by using its own weight or by further attaching a weight 124 (not shown in Fig. 2), for example, a ring-shaped weight. In addition, the resin molded body 1, which is further rotatably connected to the first strap part 113, which is rotatably connected to the first mass point connection joint 120, can function as the second mass point 500 of the double pendulum shown in Fig. 3.

[0027] The head 10, chest 20, abdomen 30, and tilted base 21 can be molded from a typical thermoplastic resin or thermosetting resin. The thermoplastic resin is not particularly limited, and any known thermoplastic resin can be used. Specific examples of the thermoplastic resin include acrylonitrile butadiene styrene resin (ABS resin), polystyrene, polyacrylate, polymethacrylate, polyacrylonitrile, polyester, polyamide, polyurethane, polyethersulfone, polyetherketone, polyimide, polydimethylsiloxane, polycarbonate, or a copolymer containing at least two of these. These thermoplastic resins may be used alone or in combination. The thermoplastic resin may also be a resin with a high elastic modulus. Acrylonitrile butadiene styrene resin (ABS resin) and polyamide (nylon-based resin) are more preferred because they are easily molded under heat.

[0028] Thermosetting resins may be any resins used in molding materials, including, for example, phenolic resins, epoxy resins, urea resins, and melamine resins, which have a triazine ring, as well as bismaleimide resins, unsaturated polyester resins, polyurethane resins, diallyl phthalate resins, silicone resins, cyanate ester resins, polyimide resins, polyamide-imide resins, benzocyclobutene resins, resins with a benzoxazine ring, polyvinyl butyral resins, and polyvinyl acetate resins. More specifically, the resin composition may include one or more resins selected from epoxy resins and phenolic resins, preferably phenolic resins, and more preferably phenolic resins or epoxy resins and phenolic resins. The resin composition is preferably a phenolic resin composition. The resin molded body 1 according to the present invention can be molded, for example, by filling a mold with a molten resin or resin composition. Furthermore, the head 10, chest 20, abdomen 30, and inclined base 21 can be integrally molded.

[0029] The resin used for the resin molded body 1 can be a resin that has been colored by mixing a coloring material such as a dye, pigment, or coloring agent into the resin. For example, a black resin can be used for a giant dragonfly, and a red resin can be used for a red dragonfly.

[0030] Below, one form of the resin molding 1 of the flying pest repellent resin molding of the present invention will be specifically described, and its shape and dimensions may be any as long as they imitate a giant dragonfly or a red dragonfly. In the case of a giant dragonfly, it may be any as long as it has the metallic luster of blue-green eyeballs 11, light-reflecting wings 40, and warning yellow bands on the thorax 20 and abdomen 30, which are the technical features of the present invention.

[0031] The head circular ring hook 12, chest circular ring hook 22, and abdominal circular ring hook 32 can be made of various metal or resin ring hooks, such as circular ring hooks, ring hooks with seats, and ring hooks that can be rotatably connected, such as eyelets.

[0032] The first connecting joint 110, the first mass point connecting joint 120, and the second connecting joint 130 can be made of various metal or resin hooks that can be rotatably connected, such as lobster claws, snap hooks with rotating rings, clip hooks, Phillips hooks, swivel snaps, spring hooks, snap hooks, and pin hooks.

[0033] A metal or resin rod or cylindrical material, or a rigid body or string, that enables double pendulum motion, can be used for first strap 113 and second strap 123. For example, straps that enable double pendulum motion, such as metal wire, wire, piano wire, cotton string, leather string, synthetic fiber string, nylon string, polyethylene string, polyurethane string, polypropylene string, polyester string, Kevlar (registered trademark) string, elastic string, or flat string, can be used.

[0034] As an example of the shape of the head 10, it may be cylindrical, 10 mm to 15 mm long, with spherical recesses provided on the left and right sides of the upper part of one end of the head 10, into which the eyeballs 11 can be attached. The other end is joined to the chest 20. The eyeballs 11 may be spherical, and for example, spheres of 8 to 10 mm diameter may be used as the eyeballs 11, which can be attached, for example, to the recesses provided on the left and right sides of the upper part of the head 10.

[0035] The thorax 20 may have a raised shape on the side where the head 10 is connected, gradually tapering to connect to the abdomen 30. The raised shape on the upper surface of the thorax 20 forms an inclined base 21, to which the wings 40 are fixed. The inclined base 21 may also have a notch to fit with the wings 40. The inclined base 21 is inclined downward from the head side to the abdomen side, and the inclination angle may be 5 to 20 degrees with respect to the horizontal. Preferably, it may be 10 to 15 degrees.

[0036] The shape of the abdomen 30 gradually tapers from the joint with the thorax 20, for example, a cylindrical portion of 4 to 6φ extends backward, then gradually expands and tapers to a spindle shape, which can have a rounded end. In order to indicate the orientation of the resin molded body 1, the tip of the head 10 to which the eyeballs 11 are attached will hereinafter be referred to as the "front" or "forward", while the end of the abdomen 30 on the side not connected to the thorax 20 will hereinafter be referred to as the "back" or "rear".

[0037] In the case where the resin molded body 1 is a giant dragonfly, the black chest 20 and abdomen 30 have yellow bands. For example, there may be three yellow diagonal bands rising from the front to the rear on both sides of the chest 20. There may be six yellow bands on the abdomen 30. The abdomen 30 may have three bands on a cylindrical portion that tapers rearward from the junction with the chest 20, and three bands on a spindle-shaped portion that connects to the cylindrical portion. For example, the spindle-shaped portion may begin to bulge rearward from the junction with the chest 20 at the position of the fourth band, reach its maximum bulge at the position of the fifth band, and have a sixth band at a position where the bulge gradually decreases rearward.

[0038] When the resin molded body 1 resembling a giant dragonfly is a giant dragonfly, the length of the thorax 20 is 10 to 20 mm, and the length of the abdomen is 60 to 80 mm. The head 10, thorax 20, and abdomen 30 are made of black resin, and the thorax 20 and abdomen 30 are painted with yellow stripes. Any paint can be used as long as it can be applied to resin, and various application methods can be used. Application methods that can be used include spray coating, roll coating, screen printing, silk screen printing, and pad printing. Pad printing is suitable as a method for applying to curved surfaces.

[0039] The wings 40 each consist of two forewings 41 and two hindwings 42, and can be made of a transparent, smooth resin plate. The thickness of the resin plate is 0.2 mm to 0.8 mm, preferably 0.3 to 0.6 mm. Any thermoplastic resin can be used for the resin plate, as long as it is transparent and can be molded into a flat plate. The wings 40 can be made by integrally molding the forewings 41 and hindwings 42, or by independently molding the forewings 41 and hindwings 42.

[0040] Examples of materials that can be used to form the wings 40 include polyolefins such as polystyrene, polyethylene, and polypropylene, polyesters such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate, polyacrylates such as polymethyl methacrylate, polyamides such as nylon 6 and nylon 66, polyimides, polyarylates, polycarbonates, triacetyl cellulose, polyacrylates, polyvinyl alcohol, polyvinyl chloride, cycloolefin copolymers, norbornene-containing resins, transparent resins such as polyethersulfone and polysulfone, and inorganic glass. Among these, resin plates made of polystyrene (PS), resin plates made of polyethylene terephthalate (PET), resin plates made of triacetyl cellulose (TAC), resin plates made of polymethyl methacrylate (PMMA), and resin plates made of polyester are preferred.

[0041] The surfaces of the forewings 41 and hindwings 42 are smooth, and a vein pattern can be provided on the surface as long as it does not impair surface reflection. For example, the vein pattern can be a simple, black, geometric pattern consisting of straight or curved lines approximately 0.5 mm wide printed on the surface.

[0042] In addition, in order to enhance the surface reflection of the forewings 41 or hind wings 42, various types of reflective tape, such as tape with a pearlescent luster or holographic tape, can be adhered, fused, laminated, or stacked on one or both sides of the forewings 41 and hind wings 42.

[0043] The wings 40, consisting of forewings 41 and hind wings 42, can be attached at various angles to the inclined base 21 on the upper surface of the thorax 20. For example, the integrally molded forewings 41 and hind wings 42 can be attached on the same plane at an angle of 5 to 20 degrees, preferably 10 to 15 degrees, from the horizontal. Alternatively, the forewings 41 and hind wings 42 can be attached alternately at different angles from the horizontal. For example, the pair of forewings 41 can be attached at an angle of 5 to 45 degrees downward and the pair of hind wings 42 can be attached at an angle of 5 to 45 degrees upward from the horizontal, or the pair of forewings 41 can be attached at an angle of 5 to 45 degrees upward and the pair of hind wings 42 can be attached at an angle of 5 to 45 degrees downward from the horizontal. Preferably, the pair of two forewings 41 can be attached at an angle of 15 to 30 degrees downward and the pair of two hind wings 42 can be attached at an angle of 15 to 30 degrees upward relative to the horizontal, or the pair of two forewings 41 can be attached at an angle of 15 to 30 degrees upward and the pair of two hind wings 42 can be attached at an angle of 15 to 30 degrees downward. Both the forewings 41 and hind wings 42 are preferably 50 to 70 mm long and 8 to 15 mm wide, and have circular or rounded tips.

[0044] Furthermore, the forewings 41 or hindwings 42 can be fixed to the inclined base 21, or can be independently attached to the base of the thorax via various hinges or the like so that they can move. For example, the hinges can be made of resin, resin tape, glass fiber tape, or the like.

[0045] The eyeballs 11 are spherical, for example, 8 to 10 mm in diameter, and have a blue-green metallic luster. The metallic luster can be obtained by applying metallic paint or pearl mica paint to urea resin. Alternatively, a blue-green pearl resin can be used.

[0046] The thoracic circular ring hook 22 of the resin molded body 1 is provided at the center of gravity of the resin molded body 1, and when the resin molded body 1 is connected to the strap part 1, the head 10, thorax 20, and abdomen 30 can be in a horizontal position when it is stationary. In addition, the forewings 41 or hind wings 42 are inclined from the horizontal by the inclined base part 21. This inclination makes the structure easy for the wings to sway when the wind blows.

[0047] The flying pest repellent resin molded body can be attached to clothing, miscellaneous goods, personal belongings, and articles 300, such as clothing such as a jacket or trousers, personal belongings such as a backpack, bag, or belt, or miscellaneous goods such as a hat or pandana, via a strap connecting member 100, to enable double pendulum motion as the user moves.Also, by attaching it to a window or balcony of a building, an outdoor tent, or a tree branch, it can sway in the wind, enabling double pendulum motion.

[0048] The resin molded body 1 of the second mass point 600 not only undergoes simple swinging or double pendulum motion, but also has the freedom to rotate around the arm axis of the pendulum, resulting in the addition of additional rotational motion, resulting in more complex movements. In addition to these movements, the forewings 41 and hind wings 42 generate swinging moments around the thoracic circular ring hook 22 with the thorax 20, and rotational moments around the ends of the head 10 and abdomen 30, resulting in even more complex, non-periodic, irregular movements. During the day, these movements of the forewings 41 and hind wings 42 reflect sunlight, attracting the attention of flying insects that are sensitive to sunlight.

[0049] [Production of flying pest repellent resin molded body] [Production Example 1] A 100 mm molded body consisting of a head, chest including a sloping base, and abdomen molded integrally from black ABS resin was coated with nine yellow bands (a mixture of EXO Yellow (2) and EXO White (manufactured by Jujo AP Ink)) by pad printing, and 8φ eyes with a blue-green metallic luster were attached to the head equipped with a circular ring hook. The forewings and hind wings were integral and flush with each other, and each 125 mm long and 10 mm wide PET wing was attached to the sloping base on the upper thorax with the thoracic circular ring hook, producing a resin molded body mass 7 g resembling a giant dragonfly.

[0050] An example of a strap connecting member will be described. Commercially available straps with rings were used as the first and second strap portions. The straps with rings each had a rotatably attached circular ring at one end and a nylon loop at the other end. Two such straps with rings were prepared, and lobster clasps were rotatably connected to the respective circular rings of the straps as the first connecting joint and the first mass joint. The two straps with rings connected with the lobster clasps were connected in the following order to form a strap connecting member: first connecting joint (lobster clasp), (circular ring) first strap portion (nylon loop), first mass joint (lobster clasp), and (circular ring) second strap (nylon loop). One end of the strap connecting member was the hook of the lobster clasp of the first connecting joint, and the other end of the strap connecting member was the nylon loop of the second strap, which also served as the second connecting joint. A circular weight could be attached to the lobster clasp of the first mass joint, allowing the mass of the first mass to be changed by changing the weight. The lobster clasp hook of the first connecting joint, which is one end of the strap connecting member, was connected to the circular ring hook on the chest of the resin molded body, which was the second mass point, to produce a flying pest repellent resin molded body.

[0051] Here, the circular ring of the chest circular ring hook is attached perpendicular to the line connecting the head to the belly end of the resin molded body, and is connected to the hook of the lobster clasp of the first connecting joint, allowing the resin molded body to rotate in the direction of the pendulum swing of the strap connecting member. A circular ring of the first strap part is connected to a circular hole at the end opposite the hook of the lobster clasp of the first connecting joint, allowing the lobster clasp of the first connecting joint to rotate in the direction of the pendulum swing of the strap connecting member. The hook of the first mass joint (lobster clasp) is connected to a nylon loop of the first strap part, and a circular ring of the second strap part is connected to a circular hole at the end opposite the hook of the lobster clasp of the first mass joint, allowing the first mass joint to rotate in the direction of the pendulum swing of the strap connecting member. The lengths of the first strap part and the second strap part are each 15 mm to 75 mm.

[0052] [Manufacturing Example 2] A flying pest repellent resin molding that imitates a giant dragonfly was manufactured, similar to that of Manufacturing Example 1, but instead of attaching the strap connecting member to the circular ring hook on the thorax at the top of the chest, a safety pin was attached to the head or the circular ring hook on the thorax.

[0053] (Invention Products 1 to 3) A flying pest repellent resin molded body was manufactured according to Production Example 1. The length of the first strap part and the second strap part was 75 mm, and Invention Products 1 to 3 were manufactured by changing the mass of the weight so that the ratio of the mass of the first mass point to the mass of the second mass point (mass of the first mass point / mass of the second mass point) was 0.6, 1.1, and 1.5.

[0054] (Inventions 4 to 6) Invention 4 is similar to invention 2 except that the length of the second strap portion is 37 mm, and invention 5 is similar to invention 2 except that the lengths of the first and second strap portions are 37 mm. Invention 6 has a first strap portion length of 15 mm, a second strap portion length of 50 mm, and a ratio of the mass of the first mass point to the mass of the second mass point (mass of the first mass point / mass of the second mass point) of 0.14.

[0055] (Comparative Product 1) Comparative Product 1 was manufactured, which is similar to Inventive Product 1 except that there is no weight at the first mass point other than the first mass point joint. The ratio of the mass of the first mass point to the mass of the second mass point (mass of first mass point / mass of second mass point) and the lengths of the first and second strap portions of Inventive Products 1 to 6 and Comparative Product 1 are summarized in Table 1.

[0056]

[0057] [Measurement of color tone of warning color] The surface color of the yellow band on the abdomen of the flying pest repellent resin molded product obtained in Production Example 1 was measured with a spectrophotometer (CM-700d manufactured by Konica Minolta, Inc.). Data was obtained by measuring three samples at three different locations on the yellow band per sample, and taking the arithmetic mean of the measured values. Here, in the L*a*b* color system (Commission Internationale de l'Eclairage), the "L*" axis represents lightness, the "a*" axis represents red for positive and green for negative, and the "b*" axis represents yellow for positive and blue for negative. The flying pest repellent resin molded product of the present invention has a warning color yellow band on the abdomen that satisfies the chromaticity range of 95≦L*≦100, -10≦a*≦-25, and 70≦b*≦95 in the L*a*b* color system, and more preferably 97≦L*≦100, -15≦a*≦-22, and 72≦b*≦94. The warning color eyeballs have a metallic luster and the chromaticity range of 40≦L*≦70, -50≦a*≦-35, and -15≦b*≦5 in the L*a*b* color system, and more preferably 50≦L*≦60, -40≦a*≦-30, and -7≦b*≦3.

[0058] [Double Pendulum Test] The flying insect pest repellent resin molded product of Production Example 1 was rotatably hung, and with the first and second strap parts stretched without slack, it was allowed to freely swing from the horizontal position, and continuous photography was performed at 0.1 seconds per frame. The lengths of the first and second strap parts (the lengths of pendulums 1 and 2) and the mass of the first mass point were changed, and the free pendulum motion was observed.

[0059] The phases of the pendulum movements of pendulums 1 and 2 were examined by analyzing continuous photographs taken at 0.1 seconds per frame, and the results were used to determine whether the pendulums were moving in a double pendulum motion. The results of the evaluation of comparative product 1 and invention products 1 to 3 are shown in Table 2 below.

[0060]

[0061] The period of the pendulums in the same phase shown in Figure 3(1) of the pendulum motion did not change significantly even when the ratio of the mass of the first mass point to the mass of the second mass point (mass of the first mass point / mass of the second mass point) was changed, as long as the length of the pendulum was the same. For example, in the case of Invention Product 2, one period of the pendulum motion shown in Figure 3(1) was approximately 0.7 to 0.8 seconds, and the two pendulums swung in the same phase until approximately 0.4 seconds. It was also confirmed that the resin molded body was the back surface and rotated.

[0062] After about 0.5 seconds, the two pendulums were clearly swinging in opposite phases, as shown in Figure 3 (2). At this time, the angle between the first and second pendulums was about 110 degrees. They continued to swing in opposite phases. They rotated backwards three times per second, and also rotated horizontally, resulting in a complex overall movement.

[0063] As shown in Table 2, when a weight was attached to the first mass point connecting joint, double pendulum motion was confirmed when the ratio of the mass of the first mass point to the mass of the second mass point (mass of the first mass point / mass of the second mass point) exceeded 0.125.

[0064] In the case of invention product 4, in which the lengths of the first strap part and the second strap part are different and the length of strap 2 is half that of invention product 2, double pendulum motion was observed with swinging in opposite phases as shown in Figure 3 (2) after approximately 0.3 to 0.4 seconds. In the case of invention product 4, in which the lengths of both the first strap part and the second strap part are half that of invention product 2, double pendulum motion was observed with swinging in opposite phases as shown in Figure 3 (2) after approximately 0.3 to 0.4 seconds. From the above, when the ratio of the mass of the first mass point to the mass of the second mass point (mass of the first mass point / mass of the second mass point) exceeds 0.125, double pendulum motion was observed regardless of the length of the first strap part or the second strap part.

[0065] [Flying Pest Repellent Test] The present invention is expected to be effective in repelling flying pests during the daytime because it not only replicates the external characteristics of the giant dragonfly, which preys on flying pests, but also its complex, non-periodic flight movements using double pendulum motion. To this end, a demonstration test of the effectiveness of the present invention was conducted during actual daytime outdoor activities. As a flying pest repellent test, a questionnaire survey was conducted at a large resort hotel with a large campground nearby.

[0066] [Flying Pest Repellent Test Method] Guests at a large resort hotel with a nearby large campground were asked to wear a flying pest repellent resin molded body while engaging in normal activities such as nature walks. The flying pest repellent resin body used was a double-pendulum structure flying pest repellent resin body of Invention 6, in which the mass of the first mass point / the mass of the second mass point is 0.143 and double pendulum motion has been confirmed (hereinafter referred to as the "double-pendulum structure flying pest repellent resin body"), and a flying pest repellent resin body attached with a safety pin instead of the double-pendulum structure (hereinafter referred to as the "safety pin flying pest repellent resin body"). The results of attaching the bodies to various parts of the body were compared. In addition, a questionnaire was conducted regarding sightings, proximity, and insect bites of flying pests, including mosquitoes, flies, horseflies, and bees.

[0067] [Flying Pest Repellent Test] Between August and September, 483 test subjects (hotel guests) were asked to attach a double-pendulum flying pest repellent resin (223 people) or a safety pin resin molded body (194 people) to their hats, clothes (jackets), trousers, bags and other personal belongings, and other items, and were then asked to complete a questionnaire targeting mosquitoes, flies, horseflies, bees and other flying pests, asking about the proximity of flying pests, whether they had been bitten, and whether they had been seen. The total number does not match the total number of test subjects because there were no responses, unknown responses and multiple responses.

[0068] The test subjects' reports on the effectiveness of the trees in repellent of flying pests were compiled. "Effective" was judged based on direct evidence, such as "mosquitoes, flies, horseflies, bees, and other insects were actually attracted, but the test subjects actually witnessed the insects flee." On the other hand, for "ineffective," various circumstances are conceivable, such as "there were no insects there to begin with," "they did not approach areas where insects are likely to appear," or "insects were attracted, but their subsequent behavior was not observed." Therefore, the results of "effective" cases, based on direct evidence such as actual sightings, are summarized in Table 3 below.

[0069]

[0070] 151 people responded that they had seen direct evidence, such as seeing insects fly towards them and then fly away. When asked about the type of insects they had seen, many simply answered "insects." On the other hand, among the responses where the type of insects they had seen was confirmed, there were more descriptions of seeing large flying pests such as flies, black flies, and bees than mosquitoes. In particular, the high number of descriptions of bees is presumably because the proximity of bees attracts the subjects' attention. The results in Table 3 confirm that the double pendulum structure or safety pin flying pest repellent resin body is effective in repelling flying pests. In particular, it was confirmed that it is effective against bees.

[0071] Next, we examined the effectiveness of the flying pest repellent resin body in preventing pests from approaching. Confirmation of pest repellency differs from direct evidence, such as the sighting of flying pests, as described above. When a person answers "no flying pests are approaching" to the question of whether or not pests are approaching, it is possible that they did not encounter any insects or were unaware of their approach. Therefore, based on the sighting of insects, we examined the difference in the effectiveness of the flying pest repellent resin body with a double pendulum structure and the safety pin flying pest repellent resin body, as well as the difference in the effectiveness of the flying pest repellent depending on the location of attachment.

[0072] [Cases of bees approaching] There were six reports of bees being seen approaching, and the double pendulum structure or safety pin flying pest repellent resin bodies in the cases where bees were seen approaching and the number of sightings at the locations where they were attached are shown in Table 4 below.

[0073]

[0074] As shown in Table 4, of the cases in which bees were observed approaching, all were when the flying pest repellent resin body was attached to clothing, and this was the case when the safety pin flying pest repellent resin body was used. In the case of the safety pin flying pest repellent resin body, bees were not observed approaching when the body was attached to jackets, but they were observed approaching on hats, pants, etc. On the other hand, in the case of the double pendulum structure flying pest repellent resin body, there were no reports of bees being attached to the body, and bees were observed approaching when the body was placed on a balcony or in an open-air bath. The results in Table 4 confirm the effectiveness of the double pendulum structure flying pest repellent resin body, which moves in a complex, non-periodic manner, like a double pendulum.

[0075] [Test method for preventing wasps from approaching a building] Invention 6, a flying pest repellent resin body with a double pendulum structure, was installed on a single bamboo stalk in an open-air bath with a great view and an outdoor dining terrace of a medium-sized inn in a large tourist destination where nearby sightseeing routes are frequently closed due to hornet infestations, and the approach of hornets and other insects was observed.

[0076] [Test to prevent wasps from approaching a building] A test to prevent wasps from approaching a building was conducted over two sunny days in September at a medium-sized inn in a large tourist area where flying wasps are frequently seen, including the closure of a nearby tourist course due to a hornet infestation. In the inn's open-air bath and outdoor dining terrace, which have a good view, a flying pest repellent resin body with a double pendulum structure was hung on the tip of a single bamboo branch 150 cm above the ground, in a position where it was easily visible from all around, 3 m from the open-air bath and 3 m from the tables on the outdoor dining terrace, and the approach of wasps and other insects was observed from 10:00 a.m. to 4:00 p.m.

[0077] During the two days of observation, hornets were observed flying outdoors, but no paper wasps or hornets were observed approaching the tables in the open-air bath or outdoor dining terrace. Furthermore, no dead paper wasps, honeybees, or hornets were found in the open-air bath or outdoor dining terrace. A double-pendulum flying pest repellent resin body hung from a single bamboo stalk was observed to move in a complex, non-periodic manner as the branches swayed in the wind. This confirms that the double-pendulum motion of the present invention prevents wasps from approaching buildings such as open-air baths and outdoor dining terraces, and that the double-pendulum flying pest repellent resin body of the present invention is effective in preventing wasps from approaching buildings, especially against flying pests such as hornets.

[0078] The flying pest repellent resin body of the present invention, which imitates the dragonfly that moves in double pendulum motion and has been confirmed to be effective in repelling flying pests, can protect people engaged in outdoor activities such as farming and forestry from damage caused by dangerous flying pests such as bees and black flies without the need to spray chemicals such as insecticides or use electronic devices that reproduce the sound of dragonfly wings, and can also eliminate problems such as insect bites by flying pests during outdoor recreation, allowing industrial activities to continue in nature, and is expected to have great industrial applicability.

[0079] REFERENCE SIGNS LIST 1 resin molded body 10 head 11 eyeball 12 head circular ring hook 20 thorax 21 inclined base 22 thorax circular ring hook 30 abdomen 40 wing 41 forewing 42 hindwing 100 strap connecting member 110 first connecting joint 111 circular ring 112 lobster clasp 113 first strap part 120 first mass point connecting joint 121 circular ring 122 lobster clasp 123 second strap part 130 second connecting joint 131 circular ring 132 lobster clasp 300 clothing, miscellaneous goods, personal belongings and articles 400 first mass point 500 second mass point 600 gravity

Claims

1. A flying pest repellent resin molded body simulating a giant dragonfly, the flying pest repellent resin molded body having a double pendulum structure consisting of a resin molded body consisting of a head, thorax, and abdomen, and a strap connecting member, the head has two spherical eyes with a metallic luster and a head ring hook between the two eyes, the thorax has an inclined base, wings, and a thoracic ring hook on the upper surface, the thorax and the abdomen are black with a yellow band, the wings have a transparent, smooth surface and each consists of a pair of forewings and hindwings, the wings are fixed to the inclined base with a thoracic ring hook, one end of the strap connecting member is rotatably connected to the head ring hook or the thoracic ring hook, and the other end can be rotatably connected to clothing, miscellaneous goods, portable items, and articles, the strap connecting member has a rotatable first mass point connecting joint which serves as a first mass point between the one end and the other end, The resin molding, which is the first mass point and the second mass point of the strap connecting member, is capable of double pendulum motion, the wings reflect light by the transparent and smooth surface, and the double pendulum motion allows the wings to perform complex and non-periodic flight movements.

2. The flying pest repellent resin molded body according to claim 1, characterized in that the eyeballs have a blue-green metallic luster due to the application of pearl resin or metallic pearl paint, and the blue-green color has an L* value of 50 to 60, an a* value of -40 to -30, and a b* value of -7 to 3 in the L*a*b* color system color index (standard light source D65, viewing angle 10 degrees).

3. A flying pest repellent resin molding as described in claim 1, characterized in that the chest is black with at least three yellow bands, the abdomen is black with at least six yellow bands, and the yellow bands have an L* value of 97 to 100, an a* value of -15 to -22, and a b* value of 72 to 94 in the L*a*b* color system color index (standard light source D65, viewing angle 10 degrees).

4. The flying pest repellent resin molding according to claim 1, characterized in that the two pairs of forewings and hind wings are attached on the same plane at an angle of 5 to 20 degrees from the horizontal, or the forewings and hind wings are staggered, with the forewings angled 15 to 30 degrees downward and the hind wings angled 15 to 30 degrees upward from the horizontal, or the forewings angled 15 to 30 degrees upward and the hind wings angled 15 to 30 degrees downward.

5. The flying pest repellent resin molded body described in claim 1, characterized in that the strap connecting member has a first connecting joint, a first strap portion, the first mass point connecting joint, a second strap portion, and a second connecting joint, which are each independently rotatably connected in this order, the first connecting joint at one end of the strap connecting member being rotatably connected to the head ring hook or the chest ring hook of the resin molded body, and the second connecting joint at the other end of the strap connecting member being rotatably connectable directly or indirectly to clothing, miscellaneous goods, personal belongings, and articles.

6. A flying pest repellent resin molding as described in claim 1, characterized in that the ratio of the mass of the first mass point to the mass of the resin molding that becomes the second mass point (mass of the first mass point / mass of the second mass point) is greater than 0.

125.

7. The flying pest repellent resin molding according to claim 1, characterized in that an abdominal ring hook is further provided at the end of the abdomen on the side not joined to the chest, and said one end of said strap connecting member is attached to said abdominal ring hook.

Citation Information

Patent Citations

  • Insect repellent

    JP1575239S

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