Drug volatilization device

Abstract

To provide a drug volatilization device capable of increasing a drug volatilization amount compared to conventional devices.SOLUTION: A drug volatilization device 1 which comprises: a drug volatilization body 2 that holds a volatile drug in a volatilizable manner; an inner container 3 that houses the drug volatilization body 2; and an outer container 4 positioned outside the inner container 3, is configured such that the inner container 3 and the outer container 4 can rotate relative to each other. The inner container 3 includes an inner opening which has an inner bottom opening formed at its bottom. The outer container 4 includes an outer opening which has an outer bottom opening formed at its bottom so as to correspond to the inner bottom opening. When the inner container 3 and the outer container 4 are rotated relative to each other, the device can switch between a volatilization state in which the inner opening and the outer opening partially overlap with each other to make the inside of the inner container 3 and the outside of the outer container 4 communicate with each other, and a non-volatilization state in which the inner opening and the outer opening do not overlap with each other completely to cut off the communication between the inside of the inner container 3 and the outside of the outer container 4.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a drug volatilization device comprising a drug volatilizer that holds a volatile drug in a volatilizable manner, an inner container that houses the drug volatilizer, and an outer container that is arranged outside the inner container, wherein the inner container and the outer container are configured to be rotatable relative to one another. [Background technology]

[0002] For example, chemical volatilization devices are used to volatilize volatile chemicals such as air fresheners, deodorants, repellents, and insecticides (see, for example, Patent Document 1).

[0003] Patent Document 1 discloses a drug volatilization device having an inner member and an outer member that can rotate relative to each other. The inner member and the outer member have openings of the same shape and arrangement on their side surfaces (circumferential surfaces) or upper surfaces.

[0004] When the inner member and the outer member are in a certain rotational position, the openings are aligned, and the inside of the inner member communicates with the outside of the outer member. In this communication state, the drug vaporized from the drug holding member contained in the inner member is volatilized from the inside of the inner member to the outside of the outer member through the openings. On the other hand, when the inner member and the outer member are in another certain rotational position, the openings are completely misaligned, and the inside of the inner member is cut off from the outside of the outer member, and the volatilization of the drug can be stopped. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2010-22206 A Summary of the Invention [Problem to be solved by the invention]

[0006] In the drug volatilization device disclosed in Patent Document 1, it was assumed that the drug would be mainly volatilized in the horizontal direction (sideways), but it was not assumed that the drug would be volatilized so as to escape in the vertical direction (up and down). Therefore, in the drug volatilization device of Patent Document 1, even in a connected state, the amount of drug volatilization from the openings provided on the side (circumferential) or upper surface of the inner and outer members was limited.

[0007] The present invention has been made in consideration of the above-mentioned problems, and aims to provide a drug volatilization device that is capable of switching between a volatilization state and a non-volatilization state by rotating the inner container and the outer container relative to each other, and that is capable of increasing the amount of drug volatilization compared to conventional devices. [Means for solving the problem]

[0008] The characteristic configuration of the drug volatilization device according to the present invention for solving the above problems is as follows: A drug volatilization device comprising a drug volatilization body that holds a volatile drug in a volatilizable manner, an inner container that contains the drug volatilization body, and an outer container that is disposed outside the inner container, the inner container and the outer container being configured to be rotatable relative to each other, the inner container has an inner opening including an inner bottom opening formed in a bottom thereof; the outer container has an outer opening including an outer bottom opening formed in a bottom thereof corresponding to the inner bottom opening; When the inner container and the outer container are rotated relative to each other, the inner opening and the outer opening are at least partially overlapping, thereby enabling a switch between a volatilization state in which the inside of the inner container is connected to the outside of the outer container, and a non-volatilization state in which the inner opening and the outer opening are not completely overlapping, thereby blocking off the inside of the inner container from the outside of the outer container.

[0009] According to the drug volatilization device of this configuration, by rotating the inner container and the outer container relative to each other, the inner opening and the outer opening are at least partially overlapped, so that the inside of the inner container communicates with the outside of the outer container, and the inner opening and the outer opening are not completely overlapped, so that the inside of the inner container and the outside of the outer container are switched between a volatilization state and a non-volatilization state, so that the inside of the inner container and the outside of the outer container are blocked off. In this way, in the drug volatilization device that can switch between a volatilization state and a non-volatilization state by rotating the inner container and the outer container relative to each other, in the volatilization state, the volatile drug volatilized from the drug volatilizer contained in the inner container is volatilized to the outside of the outer container through the inner opening including the inner bottom opening of the inner container and the outer opening including the outer bottom opening of the outer container, and the volatile drug is also volatilized to the outside of the outer container from the bottoms of the inner container and the outer container. Therefore, in contrast to conventional drug volatilization devices (Patent Document 1), which are designed primarily to volatilize drug in the horizontal direction, the drug volatilization device of this configuration can volatilize drug in the vertical direction as well as the horizontal direction, making it possible to increase the overall amount of drug volatilized.

[0010] In the drug volatilization device according to the present invention, It is preferable that the inner container has a protrusion at a position away from the center of rotation when the inner container and the outer container rotate relative to each other.

[0011] With this configuration of drug volatilization device, when rotating the inner container and the outer container relative to each other, the inner container can be easily rotated relative to the outer container by operating the protrusion provided on the inner container, making it easy to switch between the volatilization state and the non-volatilization state.

[0012] In the drug volatilization device according to the present invention, It is preferable that a fulcrum portion be provided at a position spaced apart from the protrusion of the outer container in a rotation direction when the inner container rotates relative to the outer container.

[0013] According to the drug volatilization device of this configuration, the fulcrum portion provided on the outer container serves as a fulcrum for securing a reaction force when operating the protrusion portion provided on the inner container, so that the inner container can be more easily rotated relative to the outer container, and switching between the volatilization state and the non-volatilization state can be more easily performed.

[0014] In the drug volatilization device according to the present invention, The inner container and the outer container are preferably colored so that their exterior colors are different from each other.

[0015] According to the drug volatilization device of this configuration, the inner container and the outer container are colored so that the exterior colors are different from each other, so that the change in state between the volatilization state and the non-volatilization state due to the relative rotation of the inner container and the outer container is easier to visually recognize, and it is possible to accurately determine whether the state is in the volatilization state or the non-volatilization state by visual inspection. In addition, it is easier to visually recognize how the size of the common opening part where the inner opening and the outer opening are at least partially overlapped changes with the relative rotation of the inner container and the outer container, so that the ventilation area can be easily adjusted, and the amount of volatilization of the volatile drug can be more easily adjusted.

[0016] In the drug volatilization device according to the present invention, The inner opening further includes an inner peripheral opening formed on a peripheral surface of the inner container and an inner upper opening formed on a top surface of the inner container, It is preferable that the outer opening further includes an outer peripheral opening formed on a peripheral surface of the outer container, and an outer upper opening formed on an upper surface of the outer container.

[0017] With the drug volatilization device of this configuration, wind flows horizontally through the inner peripheral opening and the outer peripheral opening, and also flows vertically through the inner top opening, the outer top opening, the inner bottom opening, and the outer bottom opening.Therefore, the volatile drug can be volatilized not only by wind that evaporates horizontally as in conventional drug volatilization devices (Patent Document 1), but also by wind that evaporates vertically, thereby enabling the volatile drug to be volatilized over a wider area. [Brief description of the drawings]

[0018] [Figure 1] FIG. 1 is an external perspective view of a drug volatilization device. [Diagram 2] FIG. 2 is an exploded perspective view of the inner container. [Diagram 3] FIG. 3 is an exploded perspective view of the outer container. [Figure 4] FIG. 4 is an enlarged perspective view of the upper part of the drug volatilization device. [Diagram 5] FIG. 5 is an enlarged perspective view of the bottom of the drug volatilization device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0019] Hereinafter, the present invention will be described with reference to the drawings. However, the present invention is not intended to be limited to the embodiments described below or the configurations shown in the drawings.

[0020] <Overall composition> FIG. 1 is an external perspective view of the drug volatilization device 1. FIG. 1(a) shows a non-volatilization state (fully closed state), and FIG. 1(b) shows a maximum volatilization state (fully open state) in which the amount of volatilization of the drug volatilization device 1 is maximum. As shown in FIG. 1(a) and (b), the drug volatilization device 1 is a free-standing type suitable for use in a room, an entrance, etc., and is formed in a roughly cylindrical shape in appearance. The drug volatilization device 1 includes a drug volatilization body 2 that holds a volatile drug so that it can be volatilized, an inner container 3 that contains the drug volatilization body 2, and an outer container 4 that is disposed outside the inner container 3 and contains the inner container 3. In the drug volatilization device 1, the inner container 3 and the outer container 4 form a storage container 5 having a nested structure (double structure). Note that the inner container 3 and the outer container 4 that form the storage container 5 can be made by a known resin molding method such as injection molding using resin as a material, but are not limited thereto.

[0021] <Volatile drugs> The volatile agent may be an insecticide, a repellent, a fungicide, an antibacterial agent, an aromatic agent, a deodorant, a synergist, etc., used alone or in combination, but is not particularly limited. For example, when used for the purpose of exterminating or repelling flying pests such as mosquitoes, midges, and moth flies, it is preferable to use a pyrethroid compound as the volatile agent, and in particular, pyrethroid compounds volatile at room temperature such as metofluthrin, profluthrin, empentrin, and transfluthrin, which have high volatilization performance and control effect against flying pests, are suitable. In addition, the volatile agent may be used in combination with a known hardly volatile agent, etc.

[0022] <Drug volatilization body> As the drug volatilizer 2, for example, a structure that holds a volatile drug in a volatile manner by impregnation or kneading can be used. Examples of materials for the drug volatilizer 2 include paper, pulp, natural fibers, synthetic fibers, resin bodies, resin sheets, inorganic and organic porous bodies, gel bodies, and the like. As a method for holding a drug in the drug volatilizer 2, a method of impregnating a resin sheet with a drug is a simple method, but it is preferable to adopt a resin kneaded with a volatile drug because it is easy to control the sustained release of the volatile drug during the use period, the amount of drug volatilization is stable, and the drug is prevented from running off due to moisture such as rain, but this is not particularly limited. Examples of resins for the resin body and the resin sheet include polyethylene, polypropylene, polyvinyl alcohol, polyvinyl acetate, polybutadiene, polyisoprene, ethylene-vinyl acetate copolymer, ethylene-methyl methacrylate copolymer, styrene-butadiene copolymer, and the like. The shape of the drug volatilizer 2 is not particularly limited to sheet-like, granular, three-dimensional, etc., but from the viewpoint of improving the volatilization efficiency of the volatile drug, for example, a honeycomb structure, a perforated structure, a planar or three-dimensional mesh structure, etc. can be adopted.

[0023] <Inner container> Fig. 2 is an exploded perspective view of the inner container 3. As shown in Fig. 2, the inner container 3 has a cylindrical inner peripheral surface portion 11 extending in the vertical direction (up and down direction) with its axis aligned with the rotation axis S1, an inner upper surface portion 12 provided integrally with the inner peripheral surface portion 11 on the upper end side of the inner peripheral surface portion 11 with its center aligned with the rotation axis S1, and an inner bottom portion 13 disposed on the lower end side of the inner peripheral surface portion 11 with its center aligned with the rotation axis S1. Although detailed explanation using illustrations is omitted for the inner container 3, the inner bottom portion 13 is detachably attached to the lower end side of the inner peripheral surface portion 11 by, for example, a known fitting structure with a tightening margin, a known locking structure by engagement between a recess and a protrusion, or a fastening structure by screwing a male screw and a female screw. In addition, the inner container 3 is provided with a retaining piece (not shown) that holds required portions of the periphery of the drug volatilizer 2, and is configured to support the drug volatilizer 2 inside the inner container 3 in a predetermined position, for example, an upright position with the longitudinal direction facing up and down.

[0024] The inner peripheral surface portion 11 has a plurality of inner peripheral surface closing plate portions 21 (three in this example) extending in the vertical direction so as to be able to close a predetermined angle region (a 60° region in this example) around the rotation axis S1. These inner peripheral surface closing plate portions 21 are disposed at equal intervals in the circumferential direction around the rotation axis S1, and each inner peripheral surface closing plate portion 21 can close every 60° region, so that a total of 180° region can be closed.

[0025] A plurality of vertical crosspiece members 22 extending in the up-down direction are disposed at predetermined intervals in the circumferential direction around the rotation axis S1 between adjacent inner peripheral surface closure plate portions 21. The longitudinal (up-down) middle portions of the vertical crosspiece members 22 are connected by horizontal crosspiece members 23 extending in the circumferential direction around the rotation axis S1 between adjacent inner peripheral surface closure plate portions 21.

[0026] <Inner opening (inner peripheral opening)> Between adjacent vertical bar members 22, and between the inner peripheral closure plate portion 21 and the adjacent vertical bar member 22, slit-shaped inner peripheral openings 24 (corresponding to the "inner opening" of the present invention) are formed so as to penetrate between the inside and outside of the inner container 3 (excluding the portion connected by the horizontal bar member 23).

[0027] The inner upper surface portion 12 has an inner upper surface disc portion 30 that is disposed in the center with its center aligned with the rotation axis S1. Furthermore, the inner upper surface portion 12 has a plurality of inner upper surface closing plate portions 31 (three in this example) that are disposed to connect the outer periphery of the inner upper surface disc portion 30 and the upper end of the inner peripheral surface closing plate portion 21 so as to be able to close a predetermined angle region (a 60° region in this example) around the rotation axis S1. These inner upper surface closing plate portions 31 are disposed at equal intervals in the circumferential direction around the rotation axis S1, and each inner upper surface closing plate portion 31 is able to close every 60° region, so that a total of a 180° region can be closed. The inner upper surface closure plate portion 31 has a partial fan shape in a plan view, with the central corner cut out, and the main portion extending from the inner upper surface disc portion 30 toward the upper end of the inner circumferential surface closure plate portion 21 extends at an upward incline toward the radial outside of the inner upper surface disc portion 30, and the edge portion connected to the upper end of the inner circumferential surface closure plate portion 21 extends horizontally toward the radial outside of the inner upper surface disc portion 30.

[0028] Between adjacent inner upper surface closure plate portions 31, a plurality of spoke members 32 extending radially outward of the inner upper surface disc portion 30 are disposed so as to connect the outer periphery of the inner upper surface disc portion 30 with the upper ends of the plurality of vertical crosspiece members 22. The spoke members 32 are shaped so that the main portions extending from the inner upper surface disc portion 30 toward the upper ends of the vertical crosspiece members 22 extend in an upwardly inclined manner toward the radially outer side of the inner upper surface disc portion 30, and the ends connected to the upper ends of the vertical crosspiece members 22 extend horizontally toward the radially outer side of the inner upper surface disc portion 30.

[0029] <Inner opening (inner top opening)> Between adjacent spoke members 32, and between the inner upper surface closure plate portion 31 and the adjacent spoke member 32, a slit-shaped inner upper surface opening 34 (corresponding to the ``inner opening'' of the present invention) is formed so as to penetrate between the inside and outside of the inner container 3.

[0030] The inner bottom 13 has an inner bottom disc portion 40 arranged in the center with its center aligned with the rotation axis S1, an inner bottom closing plate portion 41 arranged on the outer periphery of the inner bottom disc portion 40, and an inner side wall portion 42 arranged at a distance from the outer periphery of the inner bottom disc portion 40. A plurality of inner bottom closing plates 41 (three in this example) are arranged to connect the outer periphery of the inner bottom disc portion 40 and the lower end side of the inner side wall portion 42 so as to be able to close a predetermined angle region (60° region in this example) around the rotation axis S1. These inner bottom closing plates 41 are arranged at equal intervals in the circumferential direction around the rotation axis S1, and each inner bottom closing plate portion 41 can close every 60° region, so that a total of 180° region can be closed.

[0031] The inner bottom closure plate 41 has a partial sector shape in plan view with a central corner cut out, and extends in an upwardly inclined manner radially outward from the inner bottom disk portion 40. Thus, the inner bottom 13 is formed in a shape that bulges downward in a substantially inverted truncated cone shape.

[0032] <Inner opening (inner bottom opening)> Between adjacent inner bottom closure plate portions 41, a plurality of slit-shaped inner bottom openings 44 (corresponding to the ``inner openings'' of the present invention) extending circumferentially around the rotation axis S1, penetrating the inside and outside of the inner container 3, are formed at a predetermined pitch in the radial direction of the inner bottom disc portion 40.

[0033] <Outer container> 3 is an exploded perspective view of the outer container 4. The outer container 4 has a cylindrical outer peripheral surface portion 51 extending in the vertical direction (up and down direction) with its axis aligned with the rotation axis S2, an outer upper surface portion 52 provided integrally with the outer peripheral surface portion 51 on the upper end side of the outer peripheral surface portion 51 with its center aligned with the rotation axis S2, and an outer bottom portion 53 disposed on the lower end side of the outer peripheral surface portion 51 with its center aligned with the rotation axis S2. Although detailed explanation using figures is omitted for the outer container 4, like the inner container 3, the outer bottom portion 53 is detachably attached to the lower end side of the outer peripheral surface portion 51 by, for example, a known fitting structure with a tightening margin, a known locking structure by engagement between a recess and a protrusion, or a fastening structure by screwing a male screw and a female screw.

[0034] The outer peripheral surface portion 51 has a plurality of outer peripheral surface closing plate portions 61 (three in this example) extending in the vertical direction so as to be able to close a predetermined angle region (a 60° region in this example) around the rotation axis S2. These outer peripheral surface closing plate portions 61 are disposed at equal intervals in the circumferential direction around the rotation axis S2, and each outer peripheral surface closing plate portion 61 can close every 60° region, so that a total of 180° regions can be closed.

[0035] <Outer opening (outer peripheral opening)> Between adjacent outer peripheral surface closing plate portions 61, a wide slit-like outer peripheral surface opening 64 (corresponding to the "outer opening" of the present invention) that is long in the vertical direction and opens widely over the entire area of ​​a predetermined angular region (60° region in this example) around the rotation axis S2 is formed so as to penetrate between the inside and the outside of the outer container 4. The outer peripheral surface opening 64 is formed in the outer peripheral surface portion 51 so as to correspond to the inner peripheral surface opening 24.

[0036] The outer upper surface portion 52 has an outer upper surface disk portion 70 that is disposed in the center with its center aligned with the rotation axis S2. Furthermore, the outer upper surface portion 52 has a plurality of outer upper surface closing plate portions 71 (three in this example) that are disposed to connect the outer periphery of the outer upper surface disk portion 70 and the upper end of the outer peripheral surface closing plate portion 61 so as to be able to close a predetermined angle region (a 60° region in this example) around the rotation axis S2. These outer upper surface closing plate portions 71 are disposed at equal intervals in the circumferential direction around the rotation axis S2, and each outer upper surface closing plate portion 71 is able to close every 60° region, so that a total of a 180° region can be closed.

[0037] The outer upper surface closure plate portion 71 has a partial fan shape in a plan view, as if the central corner has been cut out, and the main portion extending from the outer upper surface disc portion 70 toward the upper end of the outer circumferential surface closure plate portion 61 extends at an incline upwardly toward the radial outside of the outer upper surface disc portion 70, and the edge portion connected to the upper end of the outer circumferential surface closure plate portion 61 extends horizontally toward the radial outside of the outer upper surface disc portion 70.

[0038] <Outer opening (outer top opening)> Between adjacent outer upper surface closing plate portions 71, an outer upper surface opening 74 (corresponding to the "outer opening" of the present invention) is formed, which is partially fan-shaped in plan view as if the central corner is cut out and is widely opened over the entire area of ​​a predetermined angular area (60° area in this example) around the rotation axis S2 so as to penetrate between the inside and the outside of the outer container 4. The outer upper surface opening 74 is formed in the outer upper surface portion 52 so as to correspond to the inner upper surface opening 34.

[0039] The outer bottom 53 has an outer bottom disc portion 80 arranged in the center with its center aligned with the rotation axis S2, a plurality of (three in this example) outer bottom closing plate portions 81 arranged on the outer periphery side of the outer bottom disc portion 80, and an outer side wall portion 82 arranged at a distance from the outer periphery side of the outer bottom disc portion 80. A plurality of (three in this example) outer bottom closing plate portions 81 are arranged so as to connect the outer periphery of the outer bottom disc portion 80 and the lower end side of the outer side wall portion 82 so as to be able to close a predetermined angle region (60° region in this example) around the rotation axis S2. These outer bottom closing plate portions 81 are arranged at equal intervals in the circumferential direction around the rotation axis S2, and each outer bottom closing plate portion 81 can close every 60° region, so that a total of 180° region can be closed.

[0040] The outer bottom closure plate portion 81 has a partial sector shape in plan view with a central corner cut out, and is shaped to extend in an upwardly inclined manner radially outward from the outer bottom disk portion 80, and is connected to the lower end side of the outer side wall portion 82. Thus, the inside of the outer bottom portion 53 is formed in a roughly cone shape.

[0041] <Outer opening (outer bottom opening)> Between adjacent outer bottom closure plate portions 81, an outer bottom opening 84 (corresponding to the "outer opening" of the present invention) is formed, which is partially fan-shaped in plan view as if the central corner is cut out and is widely opened over the entire area of ​​a predetermined angular region (60° region in this example) around the rotation axis S2 so as to penetrate between the inside and the outside of the outer container 4. The outer bottom opening 84 is formed in the outer bottom 53 so as to correspond to the inner bottom opening 44.

[0042] <Protrusion> FIG. 4 is an enlarged perspective view of the upper part of the drug volatilization device 1. FIG. 4(a) shows a non-volatilization state, and FIG. 4(b) shows a maximum volatilization state in which the amount of volatilization of the drug volatilization device 1 is maximum. A protrusion 90 is provided protruding upward from the inner upper disk portion 30. The protrusion 90 is disposed near the outer periphery of the inner upper disk portion 30 away from the rotation axis S (S1, S2: see FIG. 2 and FIG. 3) passing through the center of rotation when the inner container 3 and the outer container 4 rotate relative to each other. The protrusion 90 is formed in a generally rounded rectangular shape in a plan view extending along the circumferential direction around the rotation axis S. Note that a plurality of protrusions 90 may be disposed along the circumferential direction of the inner upper disk portion 30.

[0043] The outer upper disk portion 70 is provided with a guide hole 91 through which the protrusion 90 provided on the inner upper disk portion 30 is inserted. The guide hole 91 is formed as an elongated hole extending in the circumferential direction around the rotation axis S so as to guide the protrusion 90 when the protrusion 90 moves in the circumferential direction around the rotation axis S. The length of the guide hole 91 in the circumferential direction around the rotation axis S is set so that in the non-volatilization state shown in FIG. 4(a), the longitudinal edge of one side (the right side in FIG. 4(a)) of the guide hole 91 abuts against the protrusion 90, and in the maximum volatilization state shown in FIG. 4(b), the longitudinal edge of the guide hole 91 on the other side (the left side in FIG. 4(b)) abuts against the protrusion 90.

[0044] <Support part> A first fulcrum portion 95 and a second fulcrum portion 96 are respectively provided to protrude upward from the outer upper surface disk portion 70. Each of the fulcrum portions 95, 96 is formed in a generally rounded rectangular shape in a plan view extending along the circumferential direction around the rotation axis S. Each of the fulcrum portions 95, 96 is disposed in a position near the outer periphery of the outer upper surface disk portion 70 away from the rotation axis S passing through the center of rotation when the inner container 3 and the outer container 4 rotate relative to each other. Furthermore, each of the fulcrum portions 95, 96 is disposed in a position spaced apart from the protrusion portion 90 in the rotation direction when the inner container 3 rotates relative to the outer container 4. That is, the first fulcrum portion 95 is disposed in a direction along the rotational direction when the movable inner container 3 rotates relative to the fixed outer container 4, and in the direction of movement of the protrusion 90 as it advances toward one longitudinal edge of the guide hole 91, at a position spaced a predetermined distance from the protrusion 90 in the state shown in Fig. 4(a) abutting against the longitudinal edge on one side. The second fulcrum portion 96 is disposed in a direction along the rotational direction when the movable inner container 3 rotates relative to the fixed outer container 4, and in the direction of movement of the protrusion 90 as it advances toward the longitudinal edge on the other side of the guide hole 91, at a position spaced a predetermined distance from the protrusion 90 in the state shown in Fig. 4(b) abutting against the longitudinal edge on the other side.

[0045] <Bottom channel> FIG. 5 is an enlarged perspective view of the bottom of the drug volatilization device 1. As shown in FIG. 5, a leg 85 formed integrally with the outer side wall 82 is vertically attached to the outer bottom 53, which substantially forms the bottom of the drug volatilization device 1. A plurality of legs 85 (three in this example) are arranged so as to extend in a circumferential direction around the rotation axis S2 (see FIG. 3) in a predetermined angle region (60° region in this example) around the rotation axis S2 in correspondence with the outer bottom closing plate 81. The leg length of the leg 85 is set so that the outer bottom 53 is located above the mounting surface on which the drug volatilization device 1 is placed without contacting the outer bottom 53. Since the outer bottom 53 is located above the mounting surface in this way, as shown in FIG. 5(b), a bottom flow path Q is formed that leads from the inside of the inner container 3 to the outside of the outer container 4 via the inner bottom opening 44, the outer bottom opening 84, and the cutout portion 86 between the adjacent legs 85.

[0046] In the drug volatilization device 1, when the inner container 3 is incorporated inside the outer container 4, the inner bottom 13 formed in a shape bulging downward in a substantially inverted truncated cone and the outer bottom 53 formed inside in a substantially mortar shape engage with each other to cause a centering action, so that the rotation axis S1 of the inner container 3 and the rotation axis S2 of the outer container coincide with each other, and the inner container 3 and the outer container 4 can rotate relatively around the common rotation axis S. In addition, the inner circumferential surface portion 11 and the inner upper surface portion 12 of the inner container 3 are in sliding contact or close to the outer circumferential surface portion 51 and the outer upper surface portion 52 of the outer container 4 with a small gap therebetween, and the inner bottom portion 13 of the inner container 3 is in sliding contact with the outer bottom portion 53 of the outer container 4, so that the inner container 3 can rotate relatively to the outer container 4.

[0047] <How to use> A method of using the chemical volatilization device 1 configured as described above will be described mainly with reference to FIGS.

[0048] When the drug volatilization device 1 is not in use, as shown in FIG. 4(a), the protrusion 90 is moved so that the protrusion 90 abuts against the longitudinal edge of one side (the right side in FIG. 4(a)) of the guide hole 91, thereby positioning the protrusion 90 in a first position abutting against the longitudinal edge. This operation rotates the outer container 4 and the inner container 3 relative to each other, and in this example, the movable inner container 3 is rotated relative to the fixed outer container 4 in the direction along the movement direction of the protrusion 90 (the direction of the R1 arrow in FIG. 4(a)), so that the inner peripheral opening 24, the inner upper opening 34, and the inner bottom opening 44 do not completely overlap with the outer peripheral opening 64, the outer upper opening 74, and the outer bottom opening 84, as shown in FIG. 4(a) and FIG. 5(a). That is, as shown in FIG. 4(a) and FIG. 5(a), the inner peripheral opening 24, the inner upper opening 34, and the inner bottom opening 44 are completely blocked by the outer peripheral closing plate 61, the outer upper closing plate 71, and the outer bottom closing plate 81, respectively, and the outer peripheral opening 64, the outer upper opening 74, and the outer bottom opening 84 are completely blocked by the inner peripheral closing plate 21, the inner upper closing plate 31, and the inner bottom closing plate 41, respectively (fully closed state). This blocks the inside of the inner container 3 from the outside of the outer container 4. The state shown in FIG. 4(a) and FIG. 5(a) is a non-volatile state in which the volatile drug cannot spread to the outside of the outer container 4 even if the volatile drug is volatilized from the drug volatilizer 2 inside the inner container 3, because the inside of the inner container 3 and the outside of the outer container 4 are blocked.

[0049] When the drug volatilization device 1 is used in the maximum volatilization state shown in Figures 4(b) and 5(b), in the non-volatilization state shown in Figures 4(a) and 5(a), the protrusion 90 is moved so that the protrusion 90 abuts against the longitudinal edge of the other side (left side in Figure 4(a)) of the guide hole 91, and the protrusion 90 is positioned in the second position as shown in Figure 4(b) where the protrusion 90 abuts against the longitudinal edge. This operation rotates the outer container 4 and the inner container 3 relative to each other, and in this example, the movable inner container 3 is rotated relative to the fixed outer container 4 in the direction along the movement direction of the protrusion 90 (the direction of the R2 arrow in Figure 4(b)), and as shown in Figures 4(b) and 5(b), the multiple inner peripheral openings 24, the multiple inner upper openings 34, and the multiple inner bottom openings 44 completely overlap with the multiple outer peripheral openings 64, the multiple outer upper openings 74, and the multiple outer bottom openings 84. That is, as shown in Figures 4(b) and 5(b), the multiple inner peripheral openings 24, the multiple inner top openings 34, and the multiple inner bottom openings 44 are completely enclosed by the multiple outer peripheral openings 64, the multiple outer top openings 74, and the multiple outer bottom openings 84, respectively. This allows the inside of the inner container 3 to communicate with the outside of the outer container 4 (fully open state). The state shown in Figures 4(b) and 5(b) is a maximum volatilization state in which the volatile drug volatilized from the drug volatilizer 2 inside the inner container 3 spreads from the inside of the inner container 3 to the outside of the outer container 4 at the maximum volatilization amount that the drug volatilizer 2 can volatilize at that time.

[0050] When the protrusion 90 is positioned midway between the first position shown in Figure 4(a) and the second position shown in Figure 4(b), when viewed in the direction in which the inner circumferential surface portion 11 and the outer circumferential surface portion 51 overlap, in the direction in which the inner upper surface portion 12 and the outer upper surface portion 52 overlap, and in the direction in which the inner bottom portion 13 and the outer bottom portion 53 overlap, there are regions where the multiple inner circumferential surface openings 24, the multiple inner upper surface openings 34, and the multiple inner bottom openings 44 partially overlap with the multiple outer circumferential surface openings 64, the multiple outer upper surface openings 74, and the multiple outer bottom openings 84, and there are regions where they do not overlap. The common opening portion formed so as to communicate the inside of the inner container 3 with the outside of the outer container 4 by at least partially overlapping the multiple inner circumferential openings 24, the multiple inner top openings 34, and the multiple inner bottom openings 44 with the multiple outer circumferential openings 64, the multiple outer top openings 74, and the multiple outer bottom openings 84 expands or contracts depending on the relative rotation direction and relative rotation amount between the inner container 3 and the outer container 4, in other words, depending on the change in the relative rotation position of the movable inner container 3 with respect to the fixed outer container 4. The relative rotation direction and relative rotation amount between the inner container 3 and the outer container 4 can be adjusted by adjusting the relative position of the protrusion 90 between the first position (see FIG. 4(a)) and the second position (see FIG. 4(b)). Therefore, the amount of volatilization of the volatile drug can be adjusted by adjusting the relative position of the protrusion 90 with respect to the guide hole 91 between the first position and the second position. Hereinafter, the state in which the amount of evaporation of the volatile pharmaceutical agent is adjusted as described here (evaporation amount adjustment state) and the above-mentioned maximum evaporation state will be collectively referred to simply as the "evaporation state."

[0051] In the drug volatilization device 1, when in a volatilization state, the volatile drug volatilized from the drug volatilizer 2 contained in the inner container 3 passes through the inner peripheral opening 24, the inner upper opening 34, and the inner bottom opening 44 of the inner container 3, and then passes through the outer peripheral opening 64, the outer upper opening 74, and the outer bottom opening 84 of the outer container, and is volatilized to the outside of the outer container 4. In this way, the volatile drug is also volatilized to the outside of the outer container 4 from the bottom of the inner container 3 and the outer container 4. Therefore, compared to the conventional drug volatilization device (Patent Document 1) which is mainly intended to volatilize the drug only in the horizontal direction, the drug volatilization device 1 of this embodiment can volatilize the drug so that it escapes in the vertical direction in addition to the horizontal direction, making it possible to increase the overall amount of drug volatilization. Furthermore, in the drug volatilization device 1, wind flows horizontally through the inner peripheral opening 24 and the outer peripheral opening 64, and also flows vertically through the inner upper opening 34, the outer upper opening 74, the inner bottom opening 44, and the outer bottom opening 84.Therefore, the volatile drug can be volatilized not only by wind that flows mainly horizontally as in conventional drug volatilization devices (Patent Document 1), but also by wind that flows vertically, thereby enabling the volatile drug to be volatilized over a wider area.

[0052] In the drug volatilization device 1, the inner container 3 can be easily rotated relative to the outer container 4 by operating the protrusion 90, so that the volatilization state and the non-volatilization state can be easily switched and the amount of volatilization can be easily adjusted. In addition, for example, when operating the protrusion 90 with the thumb, if the index finger or middle finger is placed on the fulcrum parts 95, 96, the reaction force when operating the protrusion 90 can be secured by the fulcrum parts 95, 96, so that the inner container 3 can be more easily rotated relative to the outer container 4, the volatilization state and the non-volatilization state can be easily switched and the amount of volatilization can be more easily adjusted.

[0053] For example, in Fig. 1, the inner container 3 is shown with a mesh hatching to visually understand that the exterior color of the inner container 3 is different from the exterior color of the outer container 4 (similarly in Figs. 4 and 5). As shown in Fig. 1, the inner container 3 and the outer container 4 are preferably colored so that their exterior colors are different from each other, for example, by combining brown and white, or white and green. By making the exterior colors of the inner container 3 and the outer container 4 different from each other in this way, it becomes easier to visually recognize the state change between the non-volatilization state (see Fig. 1(a)) and the volatilization state (see Fig. 1(b)) caused by the relative movement of the outer container 4 with respect to the inner container 3, and it is possible to visually accurately determine whether the outer container 4 is in the volatilization state or the non-volatilization state. In addition, since the multiple inner peripheral openings 24, the multiple inner top openings 34, and the multiple inner bottom openings 44 overlap at least partially with the multiple outer peripheral openings 64, the multiple outer top openings 74, and the multiple outer bottom openings 84, it is easier to visually see how the size of the common opening portion formed to connect the inside of the inner container 3 to the outside of the outer container 4 changes as the outer container 4 moves relative to the inner container 3, making it easier to adjust the ventilation area and more easily adjust the amount of volatilization of the volatile drug.

[0054] The above describes the drug volatilization device of the present invention based on one embodiment, but the present invention is not limited to the configuration described in the above embodiment, and the configuration can be changed as appropriate within the scope that does not deviate from the spirit of the present invention. [Industrial Applicability]

[0055] The chemical volatilization device of the present invention can be used not only as a device for volatilizing aromatics and deodorants, but also particularly effectively in the application of exterminating or repelling flying pests such as mosquitoes, midges, and moth flies. [Explanation of symbols]

[0056] 1. Chemical volatilization device 2 Drug volatilization 3 Inner container 4 Outer container 24 Inner circumferential surface opening (inner opening) 34 Inner upper surface opening (inner opening) 44 Inner bottom opening (inner opening) 64 Outer circumferential surface opening (outer opening) 74 Outer upper surface opening (outer opening) 84 Outer bottom opening (outer opening) 90 Protrusion 95 First fulcrum 96 Second fulcrum

Claims

1. A drug volatilization device comprising a drug volatilization body that holds a volatile drug in a volatilizable manner, an inner container that contains the drug volatilization body, and an outer container that is disposed outside the inner container, the inner container and the outer container being configured to be rotatable relative to each other, the inner container has an inner opening including an inner bottom opening formed in a bottom thereof; the outer container has an outer opening including an outer bottom opening formed in a bottom thereof corresponding to the inner bottom opening; This drug volatilization device is configured to be capable of switching between a volatilization state in which the inside of the inner container and the outside of the outer container are connected by at least partially overlapping the inner opening and the outer opening when the inner container and the outer container are rotated relative to each other, and a non-volatilization state in which the inside of the inner container and the outside of the outer container are blocked off by completely not overlapping the inner opening and the outer opening.

2. The drug volatilization device according to claim 1, wherein the inner container has a protrusion at a position away from the center of rotation when the inner container and the outer container rotate relative to each other.

3. The drug volatilization device of claim 2, wherein a fulcrum portion is provided at a position spaced apart from the protrusion portion of the outer container in a rotational direction when the inner container rotates relative to the outer container.

4. The drug volatilization device according to any one of claims 1 to 3, wherein the inner container and the outer container are colored so that their exterior colors are different from each other.

5. The inner opening further includes an inner peripheral opening formed on a peripheral surface of the inner container and an inner upper opening formed on a top surface of the inner container, The drug volatilization device according to any one of claims 1 to 3, wherein the outer opening further includes an outer peripheral opening formed on the peripheral surface of the outer container, and an outer upper opening formed on the upper surface of the outer container.

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