Chemical volatilization device

Abstract

To provide a pesticide volatilization device that can more efficiently volatilize pesticides into the air flowing around the device. [Solution] The drug volatilization device 10 comprises a drug volatilizer holding a drug that volatilizes at room temperature, and a container 11 that houses the drug volatilizer. The container 11 has a front wall portion 12 that covers the front side of the drug volatilizer and a rear wall portion 13 that covers the rear side of the drug volatilizer. The front wall portion 12 has a front opening (opening) 14 (14A~14H) into which the drug volatilizer is exposed, and a front recess (recess) 30~32 that is recessed inward from the surface.

Description

Technical Field

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[0001] The present invention relates to a drug diffuser comprising a drug diffusing body holding a drug having room temperature volatility and a container housing the drug diffusing body.

Background Art

[0002] Conventionally, for the purpose of pest control or the like, a drug diffuser in which a drug diffusing body holding a drug is housed in a container has been used. This type of drug diffuser generally has an opening provided in the container for exposing the drug diffusing body to the outside. Through this opening, the drug diffused from the drug diffusing body is configured to diffuse into the air (wind) flowing around the drug diffuser (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The above-described conventional drug diffuser depends on the direction of the air (wind) flowing around the device in principle, and diffuses the drug diffused from the drug diffusing body by using the air (wind) flowing around the drug diffuser through the opening provided in the container. There was room for improvement in the diffusibility of the drug around the device.

[0005] The present invention has been made in view of the above circumstances, and an object thereof is to provide a drug diffuser capable of more efficiently and widely diffusing the drug diffused from the drug diffusing body by the air flowing around the drug diffuser.

Means for Solving the Problems

[0006] To achieve the aforementioned objectives, the drug volatilization apparatus according to the present invention is characterized by the following [1] to [4]. [1] A drug volatilization apparatus comprising a drug volatilizer holding a drug that volatilizes at room temperature, and a container for containing the drug volatilizer, The container has a front wall portion that covers the front side of the volatile substance, and a rear wall portion that covers the rear side of the volatile substance. At least one of the front side wall portion and the rear side wall portion has an opening through which the volatile substance is exposed and a recess that is recessed inward from the surface. A chemical volatilization device.

[0007] [2] In the drug volatilization device described in [1], The recess has a flat bottom and a wall that extends from the entire circumference of the bottom. A chemical volatilization device.

[0008] [3] In the drug volatilization device described in [1], The recess is provided near the center of at least one of the front wall portion and the rear wall portion. A chemical volatilization device.

[0009] [4] In the drug volatilization device described in [1], Multiple recesses are provided, The opening is not provided between the multiple recesses. A chemical volatilization device.

[0010] According to the pesticide volatilization device with the configuration described in [1] above, an opening into which the pesticide volatilizer is exposed and a recess that curves inward from the surface are provided on at least one of the front and rear side walls. When an airflow (wind) is generated toward the recess, it hits the recess and generates a flow in the opposite direction to the above flow. As a result, the flow toward the recess and the flow in the opposite direction collide, generating a multi-directional diffused flow. This multi-directional diffused flow flows in through the opening, passes through the container, and is discharged outside the container, thereby efficiently and widely diffusing the pesticide.

[0011] According to the chemical volatilization device with the configuration described in [2] above, it is possible to generate a reverse flow along the wall section erected from all sides.

[0012] In the drug volatilization device with the configuration described in [3] above, the recess is provided near the center of at least one of the front side wall and the rear side wall. Therefore, the multi-directional diffused flow generated near the center can be efficiently allowed to flow into the container through the surrounding openings, thereby enabling efficient and wide-ranging diffusion of the drug.

[0013] In the chemical volatilization device with the configuration described in [4] above, there are no openings between the recesses. Therefore, the flow that hits the recesses can be guided into the recesses, and a flow directed in multiple directions can be efficiently generated. This also allows the chemical to be diffused efficiently and over a wide area. [Effects of the Invention]

[0014] According to the present invention, a drug volatilization device can be provided that can efficiently and widely disperse a drug.

[0015] The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by referring to the attached drawings and reading through the embodiments for carrying out the invention described below (hereinafter referred to as "embodiments"). [Brief explanation of the drawing]

[0016] [Figure 1] Figure 1 is an overall perspective view of the chemical agent volatilization device according to the first embodiment of the present invention. [Figure 2] Figure 2 is a front view of the chemical agent volatilization device according to the first embodiment. [Figure 3] Figure 3 is a side view of the chemical agent volatilization device according to the first embodiment. [Figure 4] Figure 4 is a rear view of the chemical agent volatilization device according to the first embodiment. [Figure 5] Figure 5 is a cross-sectional view taken along line A-A in Figure 2. [Figure 6] Figure 6 is an enlarged cross-sectional view of part C in Figure 5. [Figure 7] Figure 7 is a cross-sectional view taken along line B-B in Figure 2. [Figure 8] Figure 8 is an exploded longitudinal cross-sectional view of Figure 7. [Figure 9] Figure 9 is an enlarged cross-sectional view of part D in Figure 8. [Figure 10] Figure 10 is an overall perspective view of the chemical agent volatilization device according to the second embodiment of the present invention. [Figure 11] Figure 11 is a front view of the chemical agent volatilization device according to the second embodiment. [Figure 12] Figure 12 is a side view of the chemical agent volatilization device according to the second embodiment. [Figure 13] Figure 13 is a rear view of the chemical agent volatilization device according to the second embodiment. [Figure 14] Figure 14 is a cross-sectional view taken along line E-E in Figure 11. [Figure 15] Figure 15 is an enlarged cross-sectional view of part G in Figure 14. [Figure 16] Figure 16 is a cross-sectional view taken along line F-F in Figure 11. [Figure 17] Figure 17 is an exploded longitudinal cross-sectional view of Figure 16. [Figure 18] Figure 18 is an enlarged cross-sectional view of part H in Figure 17. [Figure 19] Figures 19(A) and 19(B) are schematic perspective views showing a modification of the present invention. [Modes for carrying out the invention]

[0017] <First Embodiment> A specific first embodiment of the present invention will be described below with reference to the figures. For the sake of explanation, as shown in Figure 1, the longitudinal direction (up and down direction in Figure 1) of the container 11 constituting the drug volatilization device 10 will be referred to as the "up and down direction," one direction perpendicular to the "up and down direction" will be referred to as the "width direction," and one direction perpendicular to both the "up and down direction" and the "width direction" will be referred to as the "thickness direction." In addition, the side of the container 11 to which the hook 15 is attached will be referred to as the "rear side," and the opposite side will be referred to as the "front side."

[0018] The container 11 of the drug volatilization device 10 according to the first embodiment has a vertically elongated, flat shape that is long in the vertical direction and thin in the thickness direction as shown in Figure 1. In the following description, the vertically elongated shape as shown in Figure 1 will be described, but the shape of the container 11 illustrated in the first embodiment is merely an example, and the shape of the container 11 is not limited to the shape shown in Figure 1. For example, the container 11 may have a horizontally elongated rectangular shape that is long in the width direction as shown in Figure 1, or it may have a square shape, or it may have other polygonal shapes, or it may have a circular or rectangular shape. The drug volatilization device 10 comprises a drug volatilizer 40 that holds a drug that volatilizes at room temperature, and a container 11 that houses the drug volatilizer 40. The drug volatilizer 40 is in the shape of a rectangular sheet that can be housed in the container 11, and details will be described later.

[0019] As shown in Figure 3, the container 11 has a front wall portion 12 that covers the front side of the drug volatilizer 40 and a rear wall portion 13 that covers the rear side of the drug volatilizer 40. As shown in Figure 2, the front wall portion 12 is provided with a plurality of front openings (openings) 14 (14A to 14H) and a plurality of front recesses (recesses) 30 to 32. A front peripheral wall 16 is erected in an annular shape on the periphery of the front wall portion 12, extending toward the rear (see Figure 5). The front openings 14 and front recesses 30 to 32 are oval in shape that extends along the width direction of the front wall portion 12 and are provided in a plurality in parallel along the vertical direction of the front wall portion 12.

[0020] As shown in Figures 5 and 7, these front recesses 30-32 are recessed inward (towards the rear in the thickness direction) from the surface of the front wall portion 12. As shown in Figure 2, the front recesses 30-32 are provided to avoid the display portion 17 provided on the front side of the front wall portion 12. Therefore, the width dimension (short side dimension) of the front recesses 30-32 is shorter than the width dimension (short side dimension) of the front openings 14 (14A-14H). The front recesses 30-32 are provided between the four rows of front openings 14 (14A-14D) provided on the upper side in the vertical direction of the front wall portion 12 and the four rows of front openings 14 (14E-14H) provided on the lower side in the vertical direction of the front wall portion 12. In other words, these front recesses 30-32 are provided near the center on the front side of the front wall portion 12. There are no front openings 14 between each of the front recesses 30-32. From the viewpoint of efficiently generating a multi-directional flow A3, it is preferable to provide two or more front recesses, and more preferably three or more. The display section 17 displays the product name, etc., by printing, engraving, etc. Note that the display section 17 is not required, and the front recesses 30-32 may be approximately the same as the width dimension (short side dimension) of the front opening 14 (14A-14H).

[0021] As shown in Figures 3 and 4, the rear wall portion 13, like the front wall portion 12, is provided with a plurality of rear openings 18 (18A to 18H) and a plurality of rear recesses 33 to 35. A rear peripheral wall 20 is erected in an annular shape on the periphery of the rear openings 18, facing forward (see Figure 5). As shown in Figure 3 and other figures, the front wall portion 12 and the rear wall portion 13 have front openings 14C to 14F and rear openings 18C to 18F positioned symmetrically with respect to the planes along the vertical and width directions as boundary surfaces. The rear openings 18A, 18B, 18G, and 18H are opposite the front openings 14A, 14B, 14G, and 14H in the thickness direction, but are provided with a smaller width dimension than the front openings 14A, 14B, 14G, and 14H. The front wall portion 12 and the rear wall portion 13 have front recesses 30-32 and rear recesses 33-35 positioned symmetrically. In other words, in the rear wall portion 13, there are no rear openings 18 (18A-18H) in the portion facing the front recesses 30-32 in the thickness direction. From the viewpoint of efficiently generating a multi-directional flow A3, it is preferable to provide two or more rear recesses, and more preferably three or more. The front and back surfaces of the chemical volatilizer 40 are exposed to the outside through these front openings 14 (14A-14H) and rear openings 18 (18A-18H).

[0022] The front wall portion 12 and the rear wall portion 13 are provided in a rectangular shape. As shown in Figure 1, the front opening 14 (14A to 14H) is provided in an oval shape in the short direction of the front wall portion 12. The front recesses 30 to 32 are provided in an oval shape in the short direction of the front wall portion 12. Front openings 14 (14A to 14H) are provided on both the upper and lower sides of the front recesses 30 to 32.

[0023] As shown in Figures 5 to 8, the container 11 contains the volatile chemical substance 40. The container 11 is constructed by nesting the front wall portion 12 and the rear wall portion 13 together such that the outer surface of the front peripheral wall 16 provided on the front wall portion 12 and the inner surface of the rear peripheral wall 20 provided on the rear wall portion 13 slide against each other. The tip of the front peripheral wall 16 is guided between the guide claw portion 21 and the rear peripheral wall 20 by a guide claw portion 21 provided on the rear wall portion 13. The front wall portion 12 and the rear wall portion 13 are fixed by locking holes 22 provided on the front peripheral wall 16 and locking claws 23 provided on the rear peripheral wall 20 (see Figure 6). The rear wall portion 13 is provided with a frame portion 24 for containing the volatile chemical substance 40.

[0024] Returning to Figures 1 to 4, a retractable hook 15 is provided on the rear wall portion 13. As shown in Figure 4, the hook 15 has a roughly C-shaped hook body 25 and a pair of hook support shafts 26, 26 provided on the hook body 25. The hook support shafts 26, 26 are fitted into a pair of bearing portions 27, 27 provided on the rear side of the rear wall portion 13, respectively.

[0025] The hook 15 can be positioned so that the hook body 25 follows the rear wall 13 of the container 11 when packaging, transporting, or storing the chemical volatilization device 10. When using the hook 15 to suspend the container 11 from a rope, rod, etc., the hook body 25 can be rotated approximately 180 degrees around the axis (a line along the width direction) of the hook support shafts 26, 26, so that it protrudes from the top of the container 11. Because the hook body 25 is approximately C-shaped, it is possible to insert ropes, rods, etc. of a predetermined diameter or less through the slit in the hook body 25. Furthermore, the hook 15 can be fixed in a position where the clamping angle with respect to the back of the container 11 is acute (see the dashed line in Figure 3), and the container 11 can be placed so that the front of the container 11 is at a predetermined elevation angle with respect to the mounting surface S (see the dashed line in Figure 3).

[0026] As shown in Figure 9, the front recesses 30 to 32 have a planar front recess bottom (bottom) 30A to 32A and front recess walls (walls) 30B to 32B that extend forward from the entire circumference of the front recess bottoms 30A to 32A. No openings are provided in the front recess bottoms (bottom) 30A to 32A or the front recess walls (walls) 30B to 32B. The vertical dimension of the front recess 31 is set to be smaller than the vertical dimension of the front recesses 30 and 32.

[0027] Figure 9 shows in detail the front recesses 30-32 provided in the front wall portion 12. As described above, the rear recesses 33-35 provided in the rear wall portion 13 are positioned symmetrically with respect to the front recesses 30-32. For this reason, as shown in Figures 7 and 8, the vertical dimension of the rear recess 34 is set to be smaller than the vertical dimension of the rear recesses 33 and 35.

[0028] The front wall portion 12 described above is provided with front recesses 30-32 and has a substantially uniform thickness. Furthermore, as shown in Figure 9, the opening wall portion 28 that rises from the periphery of the front openings 14D and 14E toward the rear, and the front recess wall portions (wall portions) 30B-32B form rear recesses 41-44 on the rear side in the thickness direction. Similarly to the front wall portion 12, the rear wall portion 13 also has front recesses 45-48 formed on the front side in the thickness direction (see Figure 8).

[0029] <Details of the volatile chemical substance 40> Next, the details of the volatile agent 40 will be described. As the volatile agent 40 that holds the agent, for example, a net made of fibrous material can be used. This net generally has a large number of ventilation holes and is excellent in volatilizing the agent. The fibrous material used for the net can be manufactured, for example, by knitting short fibers or long fibers using methods such as lace knitting or jersey knitting. Examples of yarn materials include natural fibers such as pulp, cotton, wool, hemp and silk, polypropylene, polyethylene, polyamide, polyethylene terephthalate, polybutylene terephthalate, polysulfone, rayon, methacrylic acid resin and biodegradable resin (for example, polyglycolic acid, polylactic acid and poly(β-hydroxybutyric acid)). One or more of these materials may be used in mixtures. In particular, from the viewpoint of strength and processability, it is preferable to use polyethylene terephthalate, polypropylene, polybutylene terephthalate and polyethylene. Furthermore, for example, the fibrous material may contain additives such as antifungal agents, dyes, ultraviolet absorbers and fragrances.

[0030] The drug volatilizer 40 is not limited to a net made of the fibrous material described above, but can be any material that can hold and volatilize the drug. For example, the drug volatilizer 40 may be made from a nonwoven fabric formed using one or more of the above-mentioned fibers, or from a resin body formed in a grid, net, or sheet shape.

[0031] The chemical held by the chemical volatilizer 40 is a chemical that can be volatilized at room temperature (e.g., 15-25°C), and can be appropriately selected from various chemicals such as various pest control agents (insecticides and repellents, etc.), fragrances, deodorizers / odor inhibitors, fungicides, and fungicides, depending on the purpose, and is not particularly limited. One type of chemical may be used, or two or more types may be used.

[0032] Examples of pest control agents include various insecticides such as organophosphates, carbamates, and pyrethroids, as well as repellents and insect growth regulators. Examples of organophosphate insecticides include DDVP (dichlorvos) and diazinon, examples of carbamate insecticides include propoxur, and examples of pyrethroid insecticides include transfluthrin, metofluthrin, dimefluthrin, mepafluthrin, profluthrin, and empenthrin. Of these, transfluthrin, metofluthrin, profluthrin, and empenthrin are preferred for their excellent insecticidal or repellent effects. Other pest control agents include essential oils.

[0033] Examples of fragrances include essential oils such as peppermint oil, tea tree oil, lavender oil, citronella oil, eucalyptus oil, grapefruit oil, lemon oil, lemongrass oil, nutmeg oil, peppermint oil, orange oil, turpentine oil, and sage oil; and fragrances such as pinene, limonene, linalool, geraniol, citronellal, borneol, benzyl alcohol, anise alcohol, anethole, eugenol, citral, citronellal, vanillin, carvone, menthone, acetophenone, coumarin, cineole, ethyl acetate, octyl acetate, linalyl acetate, butylcyclohexyl acetate, butylcycloheptyl acetate, isopropyl isobutyrate, allyl caproate, ethyl benzoate, methyl cinnamate, and methyl salicylate.

[0034] Examples of deodorizing and odor-preventing agents include benzyl acetate, benzyl propionate, amyl cinnamic aldehyde, anisic aldehyde, diphenyl oxide, methyl phenyl acetate, ethyl phenyl acetate, neolin, citronella oil, and lemongrass oil.

[0035] Examples of disinfectants include IPMP (isopropylmethylphenol), PCMX (p-chloro-m-xylenol), AIT (allyl isothiocyanate), hinokitiol, and stabilized chlorine dioxide.

[0036] Examples of antifungal agents include sodium pyrithione, zinc pyrithione, IPBC (3-iodo-2-propynylbutylcarbamate), thiabendazole, imazalil, orthophenylphenol, cetylpyridinium chloride, benzalkonium chloride, and benzethonium chloride.

[0037] The drug may contain various additives as needed, provided that they do not impair the effects of the present invention. Examples of additives include efficacy enhancers, volatilization rate improvers, and stabilizers. Only one type of additive may be used, or two or more types may be used.

[0038] Examples of efficacy enhancers include MGK-264 and piperonyl butoxide.

[0039] Examples of volatility enhancers include phenethyl isothiocyanate. Examples of stabilizers include 3,5-di-t-butyl-4-hydroxytoluene, 3-t-butyl-4-hydroxyanisole, mercaptobenzimidazole, dilauryl-thio-dipropionate, 2,2'-methylene-bis-(6-t-butyl-4-methylphenol), 4,4'-methylene-bis-(2,6-di-t-butylphenol), 4,4'-thio-bis-(6-t-butyl-3-methylphenol), phenyl-β-naphthylamine, 2-t-butyl-4-methoxyphenol, stearyl-β-(3,5-di-t-butyl-4-hydroxyphenyl)propionate, α-tocopherol, ascorbic acid and erythorbic acid, as well as UV absorbers such as benzotriazole, triazine, benzophenone, benzoxazinon, salicylate, malonic acid ester, oxalylalanide, and cyanoacrylate.

[0040] The method for retaining the drug in the drug volatilizer 40 is not particularly limited. For example, one method may be to prepare a solution by dissolving the drug in a solvent and immerse the drug volatilizer 40, such as the net mentioned above, in the solution to impregnate it with the drug; to spray or drop the solution or the raw drug onto the drug volatilizer 40, such as the net, to impregnate it with the drug; or to knead the drug into the drug when manufacturing the drug volatilizer 40, such as the net. Furthermore, if necessary, the solvent may be removed by drying or other means after impregnating the drug in the drug volatilizer 40, such as the net.

[0041] There are no particular restrictions on the solvent used to prepare the drug solution, but examples include water; hydrocarbons such as naphthenes, kerosene, and paraffin; alcohols such as glycerin, propylene glycol, dipropylene glycol, hexylene glycol, methanol, isopropanol, 1-octanol, and 1-dodecanol; ketones such as acetone and acetophenone; ethers such as dihexyl ether, diethylene glycol diethyl ether, dipropylene glycol monomethyl ether, dipropylene glycol monobutyl ether, and dipropylene glycol dimethyl ether; esters such as dioctyl adipate, diethyl malonate, diethyl phthalate, and hexyl laurate; xylene; and silicone oil, one or more of these.

[0042] The amount of pesticide held in the pesticide volatilizer 40 should be appropriately determined considering the type of pesticide, etc., to achieve the desired effect (volatility and effective period). The pesticide volatilizer 40 may also be configured as a replaceable cartridge type. With a cartridge type configuration, if the pesticide volatilizer 10 is used for a long period of time and all or almost all of the pesticide volatilizes, causing the pesticide's effect to disappear or decrease, the pesticide volatilizer 40 can be replaced with a new one to restore its excellent effect.

[0043] Next, as shown in Figure 9, we will explain the case where an airflow A1 occurs in the chemical volatilization device 10, moving from the front to the rear. The flow A1 toward the front opening 14 enters the container 11 from the front opening 14, passes through the chemical volatilizer 40, and is discharged outside the container 11 from the rear opening 18, which is opposite in the thickness direction. This flow A1 diffuses the chemical volatilized from the chemical volatilizer 40 outside the container 11.

[0044] Furthermore, the flow A1 directed between the front opening 14D and the front opening 14E hits the bottom (bottom) 30A to 32A of the front recesses 30 to 32, generating a flow A2 in the opposite direction to flow A1 along the front recess walls (walls) 30B to 32B. This flow A2 and flow A1 collide to form a multi-directional flow A3, causing the flow to diffuse. This multi-directional flow A3 enters the container 11 from the front opening 14, passes through the volatile chemical 40, and is discharged outside the container 11 from the rear opening 18. This multi-directional flow A3 causes the chemical volatilized from the volatile chemical 40 to diffuse widely outside the container 11.

[0045] On the other hand, in the case where the front recesses 30-32 are not provided in Figure 9 (figure not shown), the flow A1 directed between the front opening 14D and the front opening 14E follows the surface of the front wall portion 12, enters the container 11 from the front opening 14, passes through the volatile agent 40, and is discharged outside the container 11 from the rear opening 18 which is opposite in the thickness direction. In other words, when the front recesses 30-32 are provided, it is possible to generate a flow A3 directed in multiple directions compared to when the front recesses 30-32 are not provided, so that the volatile agent dispersed from the volatile agent 40 can be diffused over a wide area outside the container 11.

[0046] <Effects of the First Embodiment> According to the first embodiment of the present invention described above, the drug volatilization device 10 is provided with a front opening 14 in which the drug volatilizer 40 is exposed, and front recesses 30-32 that are recessed inward. When an airflow (wind) A1 is generated toward the front recesses 30-32, it hits the front recesses 30-32 and generates a flow A2 that is in the opposite direction to flow A1. This flow A2 and flow A1 collide to generate a multi-directional flow A3. This multi-directional flow A3 passes through the front opening 14 and through the container 11 and is discharged outside the container 11, thereby enabling more efficient and wider diffusion of the drug volatilized from the drug volatilizer 40 compared to conventional devices.

[0047] Furthermore, according to the first embodiment of the present invention, the drug volatilization device 10 has front recesses 30-32, which have flat bottoms 30A-32A and walls 30B-32B that rise from the entire circumference of the bottoms 30A-32A. Therefore, a flow A2 can be generated along the walls 30B-32B that rise from the entire circumference.

[0048] Furthermore, according to the first embodiment of the present invention, the drug volatilization device 10 is provided with front recesses 30-32 located near the center of the front wall portion 12. This allows the multi-directional flow A3 generated near the center to be efficiently introduced into the container 11 through the surrounding front opening 14. This also allows for more efficient and wider diffusion of the drug volatilized from the drug volatilizer 40 compared to conventional methods.

[0049] Furthermore, according to the first embodiment of the present invention, the drug volatilization device 10 does not have front openings 14 (14A to 14H) between the multiple front recesses 30 to 32. As a result, the flow that hits the area between the recesses 30 to 32 can be guided into the recesses 30 to 32, and a multi-directional flow A3 can be efficiently generated. This also allows the drug volatilized from the drug volatilizer 40 to be diffused more efficiently and over a wider area compared to conventional methods.

[0050] Furthermore, according to the first embodiment of the present invention, the drug volatilization device 10 is provided with rear recesses 33 to 35 in the rear wall portion 13. Therefore, even when a flow occurs from the rear to the front, the rear recesses 33 to 35 similarly generate a multi-directional flow, allowing the drug volatilized from the drug volatilizer 40 to be efficiently and widely diffused.

[0051] <Second Embodiment> Next, a drug volatilization device 50 according to a second embodiment of the present invention will be described. In the second embodiment described below, components already described in the first embodiment will be denoted by the same reference numerals in the figures, thereby simplifying or omitting their description.

[0052] The container 51 of the drug volatilization device 50 according to the second embodiment has a vertically elongated, flat shape that is long in the vertical direction and thin in the thickness direction as shown in Figure 10. The drug volatilization device 50 comprises the drug volatilizer 40 described in the first embodiment and the container 51 that houses the drug volatilizer 40.

[0053] As shown in Figures 10 to 12, the container 51 has a front wall portion 52 and a rear wall portion 53. The front wall portion 52 is provided with a front opening (opening) 54 (54A to 54H) and a front recess (recess) 70 to 72. The front wall portion 52 has an annular front peripheral wall 56 that protrudes from the periphery to the rear (see Figure 10). The front opening 54 and the front recess 70 to 72 are oval in shape and extend along the width direction of the front wall portion 52, and are provided in multiple parallel arrangements along the vertical direction of the front wall portion 52.

[0054] These front recesses 70-72 are recessed inward (towards the back side in the thickness direction) from the surface of the front wall portion 52. The front recesses 70-72 are provided to avoid the display portion 57 provided on the front side of the front wall portion 52. The front recesses 70-72 are provided between four rows of front openings 54 (54A-54D) provided on the upper side in the vertical direction of the front wall portion 52 and four rows of front openings 54 (54E-54H) provided on the lower side in the vertical direction of the front wall portion 52. In other words, these front recesses 70-72 are provided near the center on the front side of the front wall portion 52. There are no front openings 54 provided between each of the front recesses 70-72. From the viewpoint of efficiently generating a multi-directional flow A3, it is preferable to provide two or more front recesses, and more preferably three or more. The display portion 57 displays the product name, etc., by printing, engraving, etc. The display unit 57 does not need to be provided, and the front recesses 70-72 may be approximately the same as the width dimension (short side dimension) of the front opening 54 (54A-54H).

[0055] As shown in Figure 13, the rear wall portion 53, like the front wall portion 52, is provided with a plurality of rear openings 58 (58A to 58D) and rear recesses 73 to 76. As shown in Figure 12, a rear peripheral wall 60 is erected in an annular shape on the rear wall portion 53, extending from the peripheral edge toward the front. The rear openings 58 and rear recesses 73 to 76 are oval in shape, extending along the width direction of the rear wall portion 53, and are provided in a plurality in parallel along the vertical direction of the rear wall portion 53.

[0056] As shown in Figure 16, these rear recesses 73-76 are recessed inward (towards the front in the thickness direction) from the surface of the rear wall portion 53. As shown in Figure 13, the rear recesses 73-76 are provided with approximately the same width dimension as the rear opening 58. In this embodiment, two rear recesses 73, 74 are provided on the upper side, and two rear recesses 75, 76 are provided on the lower side. The four rear openings 58A-58D are provided between the two upper rear recesses 73, 74 and the two lower rear recesses 75, 76. No rear openings 58A-58D are provided between the rear recesses 73, 74. No rear openings 58A-58D are provided between the rear recesses 75, 76. From the viewpoint of efficiently generating a multi-directional flow A3, it is preferable to provide two or more rear recesses, and more preferably three or more. The front and back surfaces of the chemical volatilizer 40 are exposed to the outside through their front openings 54 (54A-54H) and rear openings 58 (58A-58D).

[0057] As shown in Figures 14 to 18, the container 51 contains the volatile chemical substance 40. The container 51 is constructed by nesting the front wall portion 52 and the rear wall portion 53 together such that the inner surface of the front peripheral wall 56 provided on the front wall portion 52 and the outer surface of the rear peripheral wall 60 provided on the rear wall portion 53 slide against each other. The tip of the front wall portion 52 is guided between the guide claw portion 61 and the rear wall portion 53 by a guide claw portion 61 provided on the front wall portion 52. The front peripheral wall 56 and the rear peripheral wall 60 are fixed by locking claws 63 provided on the front peripheral wall 56 and locking holes 62 provided on the rear peripheral wall 60 (see Figure 15). The rear wall portion 53 is provided with a frame portion 64 for containing the volatile chemical substance 40.

[0058] Returning to Figures 10 to 13, the rear wall portion 53 is provided with a retractable hook 55. The hook 55 is roughly J-shaped and can be extended and retracted vertically into the container 51 by a pair of rails 66, 66 provided on the rear side of the rear wall portion 53.

[0059] The hook 55 can be positioned along the rear wall 53 of the container 51 when packaging, transporting, or storing the chemical volatilization device 50 (see solid line in Figure 13). When the container 51 is suspended from a rope, rod, etc., the hook 55 is designed to move along the rails 66, 66 and protrude from the container 51. Because the hook 55 is roughly J-shaped, it can be inserted through a slit into ropes, rods, etc. of a predetermined diameter or smaller.

[0060] As shown in Figure 18, the front recesses 70 to 72 have a planar front recess bottom (bottom) 70A to 72A and front recess walls (walls) 70B to 72B that rise from the entire circumference of the front recess bottom 70A to 72A. No openings are provided in the front recess bottom (bottom) 70A to 72A and the front recess walls (walls) 70B to 72B. The vertical dimension of the front recess 71 is set to be smaller than the vertical dimension of the front recesses 70 and 72.

[0061] As described above, the front wall portion 52 is provided with front recesses 70-72 and has a substantially uniform thickness. Therefore, the opening wall portion 68 of the front openings 54D and 54E and the front recess wall portion (wall portion) 70B-72B form rear recesses 81-84 on the rear side in the thickness direction.

[0062] As shown in Figure 16, the rear recesses 73-76, like the front recesses 70-72, have a planar rear recess bottom (bottom) 73A-76A and rear recess walls (walls) 73B-76B that extend from the entire circumference of the rear recess bottom 73A-76A. No openings are provided in the rear recess bottom (bottom) 73A-76A or the rear recess walls (walls) 73B-76B.

[0063] Next, as shown in Figure 18, we will explain the case where an airflow A1 occurs in the chemical volatilization device 50, moving from the front to the rear. The flow A1 toward the front opening 54 enters the container 51 from the front opening 54, passes through the chemical volatilizer 40, and is discharged outside the container 51 from the rear opening 58, which is opposite in the thickness direction. This flow A1 diffuses the chemical volatilized from the chemical volatilizer 40 outside the container 51.

[0064] Furthermore, the flow A1 directed between the front opening 54D and the front opening 54E strikes the bottom (bottom) 70A to 72A of the front recesses 70 to 72, generating a flow A2 in the opposite direction to flow A1 along the front recess walls (walls) 70B to 72B. This flow A2 and flow A1 collide to form a multi-directional flow A3, causing the flow to diffuse. This multi-directional flow A3 enters the container 51 from the front opening 54, passes through the volatile chemical 40, and is discharged outside the container 51 from the rear opening 58. This multi-directional flow A3 causes the chemical volatilized from the volatile chemical 40 to diffuse widely outside the container 51.

[0065] On the other hand, in the case where the front recesses 70-72 are not provided in Figure 18 (figure not shown), the flow A1 directed between the front opening 54D and the front opening 54E follows the surface of the front wall portion 52, enters the container 51 from the front opening 54, passes through the volatile agent 40, and is discharged outside the container 51 from the rear opening 58 which is opposite in the thickness direction. In other words, when the front recesses 70-72 are provided, it is possible to generate a flow A3 directed in multiple directions compared to when the front recesses 70-72 are not provided, so that the volatile agent dispersed from the volatile agent 40 can be diffused over a wide area outside the container 51.

[0066] <Effects of the second embodiment> According to the second embodiment of the present invention described above, the drug volatilization device 50 is provided with a front opening 54 in which the drug volatilizer 40 is exposed, and front recesses 70-72 that are recessed inward. When an airflow A1 is generated toward the front recesses 70-72, it hits the front recesses 70-72, generating a flow A2 that is in the opposite direction to flow A1. This flow A2 and flow A1 collide to generate a multi-directional flow A3. This multi-directional flow A3 passes through the front opening 54 and through the container 51 and is discharged outside the container 51, thereby enabling more efficient and wider-ranging volatilization of the drug compared to conventional methods.

[0067] Furthermore, according to the drug volatilization device 50 of the second embodiment of the present invention, the front recesses 70 to 72 have a planar bottom portion 70A to 72A and wall portions 70B to 72B that are erected from the entire circumference of the bottom portion 70A to 72A. Therefore, as with the first embodiment described above, flow A2 can be generated along the wall portions 70B to 72B that are erected from the entire circumference.

[0068] Furthermore, according to the drug volatilization device 50 of the second embodiment of the present invention, since the front recesses 70-72 are provided near the center of the front wall portion 52, the multi-directional flow A3 generated near the center can be efficiently introduced into the container 51 through the surrounding front opening 54. This also allows the drug to be volatilized efficiently and over a wide area, similar to the first embodiment.

[0069] Furthermore, according to the second embodiment of the present invention, the drug volatilization device 50 does not have front openings 54 (54A to 54H) between the multiple front recesses 70 to 72. Therefore, it is possible to efficiently generate a multi-directional flow A3. This also allows the drug to be volatilized efficiently and over a wide area, similar to the first embodiment described above.

[0070] Furthermore, according to the second embodiment of the present invention, the drug volatilization device 50 is provided with rear recesses 73 to 76 in the rear wall portion 53. Therefore, even when a flow is generated from the rear to the front, the rear recesses 73 to 76 similarly generate a multi-directional flow, allowing the drug volatilized from the drug volatilizer 40 to be efficiently and widely diffused. In addition, the multi-directional diffused flow generated near the upper and lower parts of the rear wall portion 53 can be efficiently allowed to flow into the container 51 through the rear opening 58 provided between the rear recesses 73, 74 and the rear recesses 75, 76.

[0071] <Other forms> It should be noted that the present invention is not limited to the embodiments described above, and various modifications can be adopted within the scope of the present invention. For example, the present invention is not limited to the embodiments described above, and can be modified, improved, etc. as appropriate. Furthermore, the material, shape, dimensions, number, placement, etc. of each component in the embodiments described above are arbitrary and not limited as long as they can achieve the present invention.

[0072] The present invention may employ a rectangular prism-shaped container 11A, as shown in the drug volatilization device 10A in Figure 19(A), or a cylindrical container 11B, as shown in the drug volatilization device 10B in Figure 19(B).

[0073] Furthermore, in the first embodiment, front recesses 30-32 and rear recesses 33-35 were provided in the front wall portion 12 and the rear wall portion 13. In the second embodiment, front recesses 70-72 and rear recesses 73-76 were provided in the front wall portion 52 and the rear wall portion 53, but the embodiment is not limited to these. The recesses only need to be provided in at least one of the front wall portions 12, 52 and the rear wall portions 13, 53, and may be provided only in the front wall portions 12, 52, or only in the rear wall portions 13, 53.

[0074] Furthermore, in the first embodiment, front recesses 30-32 and rear recesses 33-35 were provided near the center of the front wall portion 12 and the rear wall portion 13. In the second embodiment, front recesses 70-72 were provided near the center of the front wall portion 52, rear recesses 73 and 74 were provided on the upper side in the vertical direction of the rear wall portion 53, and rear recesses 75 and 76 were provided on the lower side in the vertical direction of the rear wall portion 53, but this is not limited to these. The recesses may be provided near the center of at least one of the front wall portion and the rear wall portion, or they may be provided separately on the upper and lower sides in the vertical direction, or they may be provided on only the upper or lower side. In other words, the recesses only need to be provided on at least one of the front wall portion and the rear wall portion, and their position is not limited. [Explanation of symbols]

[0075] 10, 10A, 10B, 50 Chemical volatilization device 11, 11A, 11B, 51 containers 12, 52 Front wall 13, 53 Rear side wall section 40. Volatile pesticides 14(14A~14H), 54(54A~54H) Front opening (opening) 30-32, 70-72 Front recess (recess) 18(18A~18H), 58(58A~58D) Rear opening (opening) 33-35, 73-76 Rear recess (recess) 30A~32A, 70A~76A bottom 30B~32B, 70B~76B wall part

Claims

1. A drug volatilization apparatus comprising a drug volatilizer holding a drug that volatilizes at room temperature, and a container for containing the drug volatilizer, The container has a front wall portion that covers the front side of the volatile substance, and a rear wall portion that covers the rear side of the volatile substance. At least one of the front side wall portion and the rear side wall portion has an opening through which the volatile substance is exposed and a recess that is recessed inward from the surface. A chemical volatilization device.

2. In the drug volatilization device according to claim 1, The recess has a flat bottom and a wall that extends from the entire circumference of the bottom. A chemical volatilization device.

3. In the drug volatilization device according to claim 1, The recess is provided near the center of at least one of the front wall portion and the rear wall portion. A chemical volatilization device.

4. In the drug volatilization device according to claim 1, Multiple recesses are provided, The opening is not provided between the multiple recesses. A chemical volatilization device.

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