JP7295637B2 - chemical volatilizer - Google Patents

Description

The present invention relates to chemical volatilizers.

Patent Literature 1 discloses a chemical volatilizer that is used by being attached by a clip or the like to a louver of an air outlet of an air conditioner mounted on an automobile. In the chemical volatilizer of Patent Document 1, the air blown from the blowout port is sucked through an inlet formed in the housing of the chemical volatilizer and discharged through an outlet formed in the housing. , volatilize the chemical in the housing into the vehicle.

Japanese translation of PCT publication No. 2012-523304

In the chemical volatilizer of Patent Document 1, by rotating the dial element, the amount of opening of the air outlet can be adjusted in order to adjust the amount of volatilization of the chemical. However, the opening amount of the air inlet cannot be adjusted. In this case, even if the flow rate of air passing through the housing can be adjusted when the chemical volatilizer is used, the air inlet cannot be closed when the chemical volatilizer is not in use. Therefore, when the chemical volatilizer is not used, the chemical volatilizes to the outside through the air inlet and is wasted.

An object of the present invention is to provide a chemical volatilizer that prevents useless volatilization of a chemical.

A chemical volatilizer according to a first aspect of the present invention is a chemical volatilizer installed in the vicinity of an air outlet, comprising: a container containing a chemical and having a hole through which the chemical exudes; and a second case that holds the first case so as to cover it from the outside and is rotatable relative to the first case around a rotation axis that extends in the front-rear direction. and A vent is formed in the first case. The second case rotates about the rotation axis with respect to the first case, thereby switching between a closed position that closes the vent of the first case and an open position that opens the vent of the first case. can switch between

A chemical volatilizer according to a second aspect of the present invention is the chemical volatilizer according to the first aspect, wherein the vent of the first case comprises a first inlet for the air and a first outlet for the air. including.

A chemical volatilizer according to a third aspect of the present invention is the chemical volatilizer according to the second aspect, wherein the first case includes a front portion, a back portion, and between the front portion and the back portion. It has a side part connected in the front-rear direction. The first inlet is formed in the rear portion. The first discharge port is arranged on at least one of the front portion and the side portion.

A chemical volatilizer according to a fourth aspect of the present invention is the chemical volatilizer according to the second aspect or the third aspect, wherein the first discharge port includes a plurality of communication ports. The first inlet includes a plurality of communication ports. The second case closes all of the plurality of communication ports of the first discharge port and the plurality of communication ports of the first inlet when at the closed position, and closes the plurality of communication ports at the open position. At least one of the plurality of communication ports of the first outlet is opened, and at least one of the plurality of communication ports of the first inlet is opened.

A chemical volatilizer according to a fifth aspect of the present invention is the chemical volatilizer according to any one of the first aspect to the fourth aspect, wherein the second case is formed with a vent. The vent of the second case overlaps the vent of the first case in front view when the second case is at the open position, and when the second case is at the closed position, It does not overlap the vent of the first case when viewed from the front.

A chemical volatilizer according to a sixth aspect of the present invention is the chemical volatilizer according to any one of the first aspect to the fifth aspect, wherein the second case rotates once with respect to the first case around the rotation axis. During this time, the closed position and the open position alternate multiple times.

A chemical volatilizer according to a seventh aspect of the present invention is the chemical volatilizer according to any one of the first aspect to the sixth aspect, wherein the second case rotates around the rotation shaft in the forward direction and the reverse direction. It is configured to be rotatable with respect to the first case.

According to the present invention, a chemical volatilizer includes a container that stores a chemical, a first case that holds the container so as to cover the container from the outside, and a second case that holds the first case so as to cover the first case from the outside. . The second case can be switched between the closed position and the open position of the vent formed in the first case by rotating relative to the first case. Therefore, when the chemical volatilizer is not in use, the vent can be closed, and useless volatilization of the chemical can be prevented.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which looked at the chemical volatilization device which concerns on one Embodiment of this invention from the front side. The perspective view which looked the drug volatilizer from the back side. Side view of the chemical volatilizer. The front view of the container which concerns on one Embodiment of this invention. Side view of the container. 1 is a cross-sectional view of a backsheet according to one embodiment of the present invention; FIG. 1 is a front view of a plate according to one embodiment of the present invention; FIG. 1 is an exploded perspective view of an inner case (first case) according to one embodiment of the present invention; FIG. The perspective view which looked at the front side member of the inner case from the back side. The perspective view which looked the back side member of the inner case from the back side. The front view of the back side member of an inner case. The perspective view which looked at the fixture which concerns on one Embodiment of this invention from the front side. Side view of the fixture. Sectional drawing which shows the structure of the connection part of a fixing tool and a 1st back part. 1 is an exploded perspective view of an outer case (second case) according to one embodiment of the present invention; FIG. The perspective view which looked at the front side member of the outer case from the back side. Sectional drawing which shows the structure of the connection part of the front side member and back side member of an outer case. The front view of the back side member of the inner case which concerns on a modification. The front view of the back side member of the inner case which concerns on another modification. Sectional drawing which shows the structure of the connection part of the fixture which concerns on a modification, and a 1st back surface part. Sectional drawing which shows the structure of the connection part of the fixture which concerns on another modification, and a 1st back surface part.

EMBODIMENT OF THE INVENTION Hereinafter, the chemical volatilization device which concerns on one Embodiment of this invention is demonstrated, referring drawings.

<1. Overall configuration of chemical volatilizer>
FIG. 1 shows a front perspective view of a chemical volatilizer 1 according to this embodiment, FIG. 2 shows a rear perspective view, and FIG. 3 shows a side view thereof. 1 to 3, the front side means the front side, and the rear side means the rear side. The chemical volatilizer 1 according to the present embodiment is for automobiles, volatilizes the chemical in the vehicle, and provides various effects of the chemical to the space in the vehicle. The chemical volatilizer 1 is installed in the vicinity of an air outlet of an on-vehicle air conditioner, and is particularly attached to a louver arranged at the air outlet of the air conditioner. As a result, the chemical volatilizer 1 can efficiently distribute the chemical in the space inside the vehicle by riding it on the airflow blown out from the blowout port.

The drug volatilizer 1 includes a container 10 containing a drug, an inner case 20 that holds the container 10 so as to cover it from the outside, an outer case 30 that holds the inner case 20 so as to further cover it from the outside, and the above unit 10. , 20 and 30 in the vicinity of the outlet of the air conditioner. Although the details will be described later, the inner case 20 is formed with vents 23 and 24, and the air sent out from the air conditioner passes through these vents 23 and 24, thereby diffusing the medicine inside the vehicle.

The outer case 30 is configured to be rotatable relative to the inner case 20 about a rotation axis A1 extending in the front-rear direction. The user sets the outer case 30 to the open position where the vents 23 and 24 of the inner case 20 are opened and uses the chemical volatilizer 1, for example, when getting on the vehicle. On the other hand, when getting off the vehicle, etc., the outer case 30 is set to the closed position to close the vents 23 and 24 of the inner case 20, and the use of the chemical volatilizer 1 is stopped. Thus, by closing the vents 23 and 24 of the inner case 20 when not in use, it is possible to prevent unnecessary consumption of the medicine. Details of the units 10, 20, 30 and 40 constituting the chemical volatilizer 1 will be described below.

<2. Configuration of each part>
<2-1. container>
4A shows a front view of container 10, and FIG. 4B shows a side view thereof. The container 10 has a container body 11 and a backsheet 12 attached to the container body 11 . The container body 11 has a cup portion 111 having an opening 11a on the back side, and an annular flange portion 112 continuous with the end portion of the cup portion 111 on the back side. The flange portion 112 extends circumferentially on the radially outer side of the cup portion 111 with reference to the central axis (which coincides with the rotation axis A1) extending in the front-rear direction of the cup portion 111 . The back sheet 12 is adhered to the flange portion 112 so as to close the opening 11a. This sticking can be performed, for example, by thermal welding, bonding with an adhesive, or the like. The cup portion 111 has a top surface portion 115 , a tubular outer peripheral portion 116 extending from the outer peripheral edge of the top surface portion 115 to the back side, and a base portion 114 that is continuous with the back side end portion of the outer peripheral portion 116 . The pedestal portion 114 has a shape that includes the outer peripheral portion 116 inside when viewed from the front. The pedestal portion 114 has a tubular portion that rises from the inner peripheral edge of the flange portion 112 and a planar portion that extends between the front end of the tubular portion and the rear end of the outer peripheral portion 116 . . Although not limited to this, the top surface portion 115 has a circular shape when viewed from the front, and the outer peripheral edges of the pedestal portion 114, the back sheet 12, and the flange portion 112 have a square shape with rounded corners when viewed from the front. In the present embodiment, the outer peripheral edge of the back sheet 12 and the outer peripheral edge of the flange portion 112 substantially match when viewed from the front.

A closed space is formed by the container body 11 and the back sheet 12, and the drug is contained in the closed space. The drug of this embodiment is in liquid form. The type of agent is not particularly limited, but is typically a fragrance, deodorant, insect repellent, or a mixture thereof. Additives are included. The solvent contained in the drug is appropriately selected according to the type of additive used, and may be a hydrophilic solvent, a lipophilic solvent, or a mixture thereof. When the drug contains perfume, it preferably contains at least a lipophilic solvent as a solvent in order to increase the strength of the scent. As hydrophilic solvent, for example, water or ethanol or a mixture thereof can be used. As lipophilic solvents, for example, glycol ethers or isoparaffinic solvents, or mixtures thereof can be used. In addition, the drug may contain a solubilizer to solubilize functional ingredients such as perfumes, deodorant ingredients, insect repellent ingredients, and colorants.

The material of the container body 11 is not particularly limited, but may be, for example, a resin such as polyethylene terephthalate or polyethylene. The back sheet 12 is a flexible sheet. The back sheet 12 is configured to form holes through which the drug exudes by being pierced. FIG. 5 is a cross-sectional view of the backsheet 12 of this embodiment. In this example, the backsheet 12 is composed of a laminate having a volatilization layer 121 and a breaking layer 122 arranged closer to the container body 11 than the volatilization layer 121 . The volatilization layer 121 is made of a material, here a porous material, that allows the chemical to pass through and volatilize. The volatilization layer 121 is made of a material that is more difficult to break than the rupture layer 122 when a pressure is applied to the back sheet 12 from the volatilization layer 121 side and when a tensile force is applied to stretch the back sheet 12. be done. As a material for the volatilization layer 121 as described above, a porous film such as Teslin (trademark) or Daramic (trademark) can be preferably selected. Moreover, as the material of the rupture layer 122 as described above, for example, polyethylene, aluminum, polyethylene terephthalate, or any combination thereof can be selected. A preferred example of the material of the rupture layer 122 is a thin film in which a first polyethylene layer, an aluminum layer, a second polyethylene layer, and a polyethylene terephthalate layer are laminated in this order from the container body 11 side. In this embodiment, the volatilization layer 121 and the fracture layer 122 are joined only at the outer peripheral portion overlapping the flange portion 112 in a front view. This joining can be performed, for example, by heat welding or bonding with an adhesive.

A plate 13 is arranged along the backsheet 12 inside the container 10, as indicated by the dashed lines in FIGS. 4A and 4B. FIG. 6 is a front view of the plate 13. FIG. The plate 13 has substantially the same shape as the space surrounded by the pedestal portion 114 and is accommodated within the space. The plate 13 has through-holes 131 formed at predetermined positions, in this embodiment, near four corners in a front view, and through-holes 132 also formed near the center. The inside of the container main body 11 is filled with a drug through the through hole 132 . As is clear from the above description, the plate 13 covers the back sheet 12 in the internal space of the container 10. In the back sheet 12, portions corresponding to the through holes 131 and 132 (hereinafter referred to as uncovered portions) are It is not covered by the plate 13. Plate 13 is arranged to prevent stretching of backsheet 12 except for the uncovered portion when pressure is applied to backsheet 12 from the volatilization layer 121 side. Further, the plate 13 can prevent the tear layer 122 from tearing due to deformation of the backsheet 12 when the internal space of the container 10 becomes negative pressure due to a decrease in the environmental temperature. Furthermore, tearing of the rupture layer 122 due to dropping or external impact can be prevented. Although the material of the plate 13 is not particularly limited, it is, for example, a resin such as polypropylene.

<2-2. Inner case>
FIG. 7 shows an exploded perspective view of the inner case 20. As shown in FIG. As shown in the figure, the inner case 20 has a front-side member 21 and a back-side member 22 that are removable in the front-rear direction. FIG. 8 is a perspective view of the front side member 21 viewed from the back side, and FIG. 9 is a perspective view of the back side member 22 viewed from the back side. Although not limited to this, the inner case 20 is made of resin such as polypropylene. In the present embodiment, the front side member 21 is integrally constructed as one component in a non-separable manner, and the rear side member 22 is also integrally constructed as a single component in an inseparable manner. ing.

The front side member 21 has a first front portion 211 and a tubular first side portion 212 extending from the outer peripheral edge of the first front portion 211 to the rear side. On the other hand, the back side member 22 has a first back portion 221 detachably connected to the back side end of the first side portion 212 . The first side surface portion 212 connects the first front surface portion 211 and the first rear surface portion 221 in the front-rear direction.

The first front portion 211 has a circular outer peripheral edge when viewed from the front, and has an opening 211a penetrating in the front-rear direction near the center. The opening 211a also has a circular shape concentric with the outer peripheral edge of the first front portion 211 when viewed from the front. As shown in FIG. 8 , a cylindrical inner wall portion 213 that rises toward the back side is continuous with the first front portion 211 along the outer peripheral edge of the opening 221a. The entire cup portion 111 of the container 10 is inserted into the space inside the inner wall portion 213 from the rear side. When the container 10 is accommodated in the inner case 20 , the flange portion 112 abuts against the inner wall portion 213 , so volatilization of the drug from the space inside the inner wall portion 213 can be prevented. As shown in FIG. 8, the inner wall portion 213 has a circular shape that generally matches the opening 211a in a rear view, but has four corners arranged at equal radial intervals so as to receive the four corners of the pedestal portion 114. As shown in FIG. There is a portion 213a with an enlarged diameter. Thus, since the inner wall portion 213 and the base portion 114 inserted therein are non-circular, the container 10 rotates with respect to the front side member 21 in a state where the cup portion 111 is inserted inside the inner wall portion 213. It becomes impossible to rotate around the axis A1.

The first rear surface portion 221 is a plate member having a circular outer peripheral edge, and the outer peripheral edge generally coincides with the first front surface portion 211 when viewed from the front. As shown in FIG. 7, on the front surface of the first back portion 221, an annular protruding wall 222 is erected along the outer peripheral edge slightly inside the outer peripheral edge. On the other hand, as shown in FIG. 8, a stepped portion 212a is formed on the inner peripheral surface of the first side surface portion 212 along the circumferential direction. More specifically, the first side surface portion 212 has an annular thick portion 214 and a thinner annular thin portion 215 that is continuous with the back side of the thick portion 214. A step portion 212a is formed. The front-side member 21 and the back-side member 22 are connected by fitting the projecting wall 222 into the stepped portion 212a. An annular protrusion 218 (see FIG. 8) protruding radially inward along the circumferential direction is provided at the end of the thin portion 215 on the back side. An annular protrusion 223 (see FIG. 7) is provided that protrudes radially outward. When connecting the front side member 21 and the back side member 22 , the projections 218 and 223 get over each other due to their elastic deformation, and the projection wall 222 is inserted inside the first side surface portion 212 . After the insertion, the protrusions 218 and 223 are engaged with each other, so that the connection state between the front side member 21 and the rear side member 22 is maintained unless a strong external force is applied. 22 will not come off unintentionally.

As shown in FIG. 8, the stepped portion 212a is partially interrupted along the circumferential direction. A pair of protruding pieces 216 and 217 that stand inwardly from the inner peripheral surface of the first side surface portion 212 are provided on the front side member 21 at this discontinuous position. On the other hand, as shown in FIG. 7, a claw portion 224 that stands up toward the front side is provided on the upper surface of the projecting wall 222 of the back side member 22 . The protruding pieces 216 and 217 function as accommodating portions that define a space between them into which the claw portion 224 is inserted. The claw portion 224 is fitted into the space between the projecting pieces 216 and 217 from the back side when the front side member 21 and the back side member 22 are connected. The claw portion 224 and the projecting pieces 216 and 217 are engaged with each other to function as a rotation restricting portion that restricts the front side member 21 from rotating relative to the back side member 22 around the rotation axis A1. When the claw portion 224 is fitted between the projecting pieces 216 and 217, it is surrounded by the projecting pieces 216 and 217 from both sides around the rotation axis A1. Therefore, the projecting pieces 216 and 217 can restrict the rotation of the claw portion 224 in the forward and reverse directions about the rotation axis A1. Therefore, the rotation restricting portion described above restricts relative rotation of the front side member 21 with respect to the back side member 22 in the forward direction and the reverse direction.

Although the details will be described later, the outer case 30 is rotatable relative to the inner case 20 about the rotation axis A1 in forward and reverse directions. During such rotation, force around the rotation axis A<b>1 is applied from the outer case 30 to the inner case 20 , especially the front side member 21 including the first side surface portion 212 , due to friction with the outer case 30 . The above-described rotation restricting portion prevents the front side member 21 and the rear side member 22 included in the inner case 20 from rotating relatively due to such a force. The open state and closed state of the vents 23 and 24 of the inner case 20 are formed according to the relative rotational positions of the inner case 20 and the outer case 30. If it rotates with respect to the back side member 22, it will become impossible to switch opening and closing of the vent holes 23 and 24 appropriately. However, since the relative rotation between the front-side member 21 and the back-side member 22 is restricted by the above-described rotation restricting portion, such a situation is prevented. Further, although the details will be described later, the back sheet 12 of the container 10 non-rotatably fixed to the front side member 21 is pierced by the pressing portion 417 of the fixture 40 non-rotatably fixed to the back side member 22 and broken. be killed. As a result, holes are formed in the back sheet 12 to allow the drug to exude from the container 10 . Therefore, if the front side member 21 rotates with respect to the back side member 22, the pressing portion 417 moves on the back sheet 12, and the back sheet 12 is excessively torn. Then, the medicine leaks through the back sheet 12 more than necessary. However, here, since the relative rotation between the front-side member 21 and the rear-side member 22 is restricted by the above-described rotation restricting portion, such a situation is prevented.

However, the circumferential interval between the projecting pieces 216 and 217 is larger than the circumferential width of the claw portion 224 . That is, the rotation restricting portion composed of the projecting pieces 216 and 217 and the claw portion 224 has play around the rotation axis A1, and allows the front side member 21 to rotate with respect to the back side member 22 by a predetermined amount. This is because if the front side member 21 and the back side member 22 are completely unrotatable relative to each other, the force around the rotation axis A1 that is applied by friction from the outer case 30 to the inner case 20 will have nowhere to escape. . In this case, the rotation of the outer case 30 drags the inner case 20 to rotate, and the fixture 40 fixed to the inner case 20 so as not to rotate also tends to rotate. If so, the part where the fixture 40 is attached, typically the louver of the outlet of the air conditioner, may be damaged. However, in this case, the relative rotation between the front side member 21 and the rear side member 22 is allowed to some extent due to the play of the rotation restricting portion, so that such a situation is prevented. This play can also function as a clearance that can eliminate defects when assembling the inner case 20 and the outer case 30 .

A first inlet port 23 is formed in the first back portion 221 to introduce the air blown out from the outlet of the air conditioner into the inner case 20 . On the other hand, the first front face portion 211 is formed with a first discharge port 24 for discharging the air introduced into the inner case 20 through the first introduction port 23 to the outside. In this embodiment, the first inlet 23 includes multiple (more specifically, three) communication ports 23a to 23c, and the first outlet 24 also includes multiple (more specifically, three) communication ports. ) including communication ports 24a to 24c. The communication ports 23 a to 23 c are arranged in the outer peripheral direction of the first back portion 221 , and the communication ports 24 a to 24 c are also arranged in the outer peripheral direction of the first front portion 211 . The communication ports 23a to 23c are arranged at regular intervals around the rotation axis A1. The communication ports 24a to 24c are also arranged at regular intervals around the rotation axis A1.

In this embodiment, the communication ports 23a to 23c are arranged so as to overlap the communication ports 24a to 24c, respectively, when viewed from the front. As a result, the air blown out from the outlet of the air conditioner appropriately and efficiently passes through the inside of the inner case 20 from the rear to the front while appropriately volatilizing the medicine exuded from the holes formed in the back sheet 12. be able to. In this embodiment, the communication ports 23a to 23c and the communication ports 24a to 24c have substantially the same shape, and overlap each other with little deviation when viewed from the front. In addition, the above-described rotation restricting portion has a positioning function to ensure that the communication ports 23a to 23c and the communication ports 24a to 24c face each other when the front side member 21 and the rear side member 22 are connected. also have

A sign area 25 is arranged on the front side surface (outer surface) of the first front portion 211 at a position between the communication openings 23a to 23c along the circumferential direction. The signature area 25 is an area in which a signature such as characters or graphics is written. In the example of FIG. 7, the characters "OFF" are written. Although the details will be described later, the sign in the sign area 25 is a sign indicating that the vents 23 and 24 of the inner case 20 housing the container 10 are closed.

An opening 221a penetrating in the front-rear direction is formed in the vicinity of the center of the first rear surface portion 221 . The opening 221a has a square shape that is concentric with the outer peripheral edge of the first rear surface portion 221 when viewed from the front. Although details will be described later, the base portion 41 of the fixture 40 is inserted into the opening 221a. Projections 225 are formed on the front surface of the first rear surface portion 221 at positions facing the central portions of the sides of the opening 221a. When the inner case 20 is closed so as to hold the container 10 inside, each protrusion 225 abuts on the overlapping portion of the flange portion 112 of the container 10 and the back sheet 12 to support it from the back side.

When the container 10 is held in the inner case 20 , the front side surface (inner surface) of the first back portion 221 faces the back sheet 12 of the container 10 . FIG. 10 is a front view of the back side member 22. FIG. Although omitted in FIG. 7, the inner surface of the first back portion 221 facing the back sheet 12 has an uneven area C1 as shown in FIG. Numerous fine spaces are formed in the uneven region C1 to hold the liquid component of the medicine exuded from the back sheet 12 . In the present embodiment, a large number of ribs 226 extending substantially parallel to each other are formed in the uneven region C1, and gaps between the ribs 226 form channel-like minute spaces. When the liquid component of the drug that has leaked out of the back sheet 12 adheres to the first back surface portion 221 , it is captured by capillary action so as to be sucked into such minute spaces. Therefore, especially when the chemical volatilizer 1 is not used, the liquid component of the chemical leaks out of the chemical volatilizer 1 and stains the surroundings even when the chemical leaked from the back sheet 12 is difficult to volatilize. the situation is suppressed.

As shown in FIG. 10, on the front side surface (inner surface) of the first rear portion 221, in addition to ribs 226, a surrounding wall 227 is arranged so as to surround the communication ports 23a to 23c, and an opening 221a near the center. A surrounding wall 228 is provided. The surrounding wall 227 serves to prevent the liquid component of the drug adhering to the first back surface portion 221 from leaking out through the communication ports 23a to 23c. On the other hand, the surrounding wall 228 prevents the liquid component of the drug adhering to the first rear face portion 221 from passing through the gap formed between the fixture 40 inserted into the opening 221a and the first rear face portion 221 to the outside. It plays a role in preventing leakage.

As shown in FIG. 9 , an annular projecting wall 229 extending toward the back side is erected on the back side surface (outer surface) of the first back portion 221 . The projecting wall 229 is arranged to surround the opening 221a, and has a circular shape that circumscribes four corners of the square opening 221a in a rear view. Although the details will be described later, this projecting wall 229 has a function of receiving the flange portion 413 of the fixture 40 in its inner space and preventing the liquid component of the medicine from leaking out through the opening 221a.

<2-3. Fixture>
FIG. 11 shows a perspective view of the fixture 40 viewed from the front side, and FIG. 12 shows a side view thereof. Although not limited to this, the fixture 40 is made of resin such as polypropylene or polyacetal. The fixture 40 has a base portion 41 and a clip portion 42 extending rearward from the base portion 41 and fixed to the vicinity of the outlet of the air conditioner, typically to a louver. In the present embodiment, the fixture 40 is integrally configured as one part inseparably.

The base portion 41 has a tubular trunk portion 411 , a bottom surface portion 412 arranged to block an opening on the rear side of the trunk portion 411 , and a flange portion 413 . The flange portion 413 extends radially outward along the circumferential direction from the outer peripheral surface of the body portion 411 . The outer peripheries of the trunk portion 411 and the bottom portion 412 are square when viewed from the front, and have a shape that substantially matches the opening 221 a of the first back portion 221 . On the other hand, the outer peripheral edge of the flange portion 413 has a circular shape that circumscribes the four corners of the square body portion 411 when viewed from the front. As a result, the body portion 411 is inserted into the opening 221 a of the first back portion 221 from the back side, but cannot pass through due to the flange portion 413 . The flange portion 413 is connected to a portion of the body portion 411 that protrudes from the opening 221a to the rear side in the front-rear direction when the fixture 40 is fixed to the rear side member 22 .

The trunk portion 411 has a pair of cuts 414 and 414 near the center of two sides facing each other when viewed from the front. Between each pair of cuts 414 and 414, a thin plate-like elastic piece 415 extending in the front-rear direction is provided. Each elastic piece 415 is provided with a protrusion 416 extending radially outward of the trunk portion 411 . When the body portion 411 is inserted into the opening 221a from the back side in order to connect the fixture 40 and the first back portion 221, the protrusion 416 is pushed by the outer peripheral portion 230, and the elastic piece 415 is inclined inward. elastically deformed. Note that the outer peripheral portion 230 is a portion of the first back surface portion 221 and is a portion surrounding the opening 221a in the vicinity of the opening 221a so as to define the opening 221a. Due to the elastic deformation of the elastic piece 415 as described above, the projection 416 passes through the opening 221a. side surface). As a result, unless a strong external force is applied, the connection state between the fixture 40 and the first rear surface portion 221 is maintained, and the fixture 40 is unintentionally pulled out of the inner case 20 due to unexpected hand contact, vehicle vibration, or the like. Prevents falling off. The fixture 40 is attached to the inner case 20 so as to extend rearward from the first rear surface portion 221 .

Pressing portions 417 are provided in the vicinity of the four corners in the front view of the front end portion of the body portion 411 . The pressing portion 417 is a projection whose front side is sharpened. The pressing portion 417 presses through the back sheet 12 of the container 10 when the inner case 20 is closed so as to hold the container 10 inside. Thereby, the breaking layer 122 included in the back sheet 12 is broken. On the other hand, the volatilization layer 121 is not broken due to its high extensibility, but is made up of a porous membrane, so it can permeate the drug. Therefore, after being pressed by the pressing portion 417, the back sheet 12 is formed with holes through which the medicine exudes. Through these holes, the medicine seeps from the inside of the container 10 into the space on the back side of the back sheet 12 . The exuded medicine accumulates at high density in the space formed between the back sheet 12 and the first back portion 221, and is transported to the outside by an air current passing through the space.

FIG. 13 is a cross-sectional view showing the structure of the connecting portion between the fixture 40 and the outer peripheral portion 230 surrounding the opening 221a in the first back portion 221. As shown in FIG. As shown in the figure, the outer peripheral portion 230 has a base surface 231 that faces the flange portion 413 of the base portion 41 and is spaced apart from the flange portion 413 . The base surface 231 is a surface extending toward the back side in a plane perpendicular to the front-rear direction. Further, the outer peripheral portion 230 is provided with a protruding portion 232 that protrudes from the base surface 231 to the rear side so as to come into contact with the flange portion 413 . As shown in FIG. 9, the protrusions 232 are arranged at four locations on the base surface 231 surrounded by the protrusion walls 229 . Both ends of each of the four projecting portions 232 are continuous with the projecting wall 229 in the rear view. On the other hand, the flange portion 413 has a base surface 418 that faces the inner peripheral surface of the protruding wall 229 included in the outer peripheral portion 230 and is spaced apart from the inner peripheral surface of the protruding wall 229 . The base surface 418 is a side peripheral surface that extends in the thickness direction of the flange portion 413 . 13, the flange portion 413 is provided with a projecting portion 419 projecting radially outward from the base surface 418 so as to come into contact with the inner peripheral surface of the projecting wall 229. As shown in FIG. Although not shown in FIGS. 11 and 12, the projecting portion 419 extends over the entire circumference of the flange portion 413 .

The contact portion between the projecting portion 232 and the flange portion 413 described above is located on a route from the inside of the first rear surface portion 221 to the outside through the opening 221a (hereinafter referred to as a leak route), so the leak route should be closed. can be done. Therefore, this contact portion forms a breakwater for the liquid component of the medicine, and can suppress the leakage of the medicine from the inner case 20 through the leakage route. Moreover, as shown in FIG. 9, the projecting portion 232 is rib-shaped and elongated. As a result, the contact area between the projecting portion 232 and the flange portion 413 is narrowed, and the effect of preventing leakage of the drug is enhanced. In other words, suppose that the projecting portion 232 is omitted and the entire base surface 231 is in surface contact with the flange portion 413 . In this case, a long gap between these contact surfaces is formed on the leakage route along the direction in which the leakage route extends. Then, due to capillary action, the liquid component contained in the drug is easily sucked out through the narrow gap between the contact surfaces. In this regard, here, since the protruding portion 232 that occupies a short width along the direction in which the leak route extends from the base surface 231 only contacts the flange portion 413, the drug is unlikely to be sucked out due to such capillary action. It's becoming

Similarly, the contact portion between the projecting portion 419 and the projecting wall 229 is also located on the leakage route, so that the leakage route can be closed. Therefore, this contact portion also forms a breakwater for the liquid component of the medicine, and can suppress the leakage of the medicine from the inner case 20 through the leakage route. The projecting portion 419 is also rib-shaped and elongated. As a result, the contact area between the projecting portion 419 and the projecting wall 229 is narrowed, and the effect of preventing leakage of the drug is enhanced. That is, if the protruding portion 419 is omitted and the entire base surface 418 is in surface contact with the protruding wall 229, a gap between these contact surfaces is formed long on the leak route along the direction in which the leak route extends, causing capillary action. Therefore, the liquid component contained in the medicine is easily sucked out to the outside. In this respect, here, since the protruding portion 419 occupying a short width along the direction in which the leakage route extends from the base surface 418 only contacts the protruding wall 229, it is difficult for the drug to be sucked out due to such capillary action. It's becoming

In addition, the base surfaces 231 and 418 on which the plurality of projecting portions 232 and 419 rise are arranged so as to form an angle with each other, particularly in this embodiment, so as to be substantially perpendicular to each other. That is, the contact portion between the projecting portion 232 and the flange portion 413 and the contact portion between the projecting portion 419 and the projecting wall 229 are arranged separately on the route before and after the leakage route bends. This further suppresses leakage of the medicine from the inner case 20 .

The clip portion 42 has a pair of projecting pieces 421 and 422 . The projecting pieces 421 and 422 face each other and extend rearward from the rear surface of the base portion 41 (the rear surface of the bottom surface portion 412). The protruding pieces 421 and 422 can be bent by a predetermined amount due to elastic deformation so as to separate from each other with the base portion on the base portion 41 side as a reference. Therefore, by applying an external force to the protruding pieces 421 and 422, the distance between the protruding pieces 421 and 422 can be widened. Then, typically, a louver of an air conditioner is sandwiched between the widened gaps between the projecting pieces 421 and 422, so that the position of the clip portion 42 and thus the chemical volatilizer 1 as a whole can be fixed.

<2-4. Outer case>
FIG. 14 shows an exploded perspective view of the outer case 30. As shown in FIG. As shown in the figure, the outer case 30 has a front-side member 31 and a back-side member 32 that are removable in the front-rear direction. FIG. 15 is a perspective view of the front side member 31 viewed from the rear side. Although not limited to this, the outer case 30 is made of resin such as polypropylene. In the present embodiment, the front side member 31 is integrally constructed as one component in its entirety inseparably, and the rear side member 32 is also integrally constructed as one component in its entirety inseparably. ing.

The front side member 31 has a second front portion 311 and a tubular second side portion 312 extending from the outer peripheral edge of the second front portion 311 to the rear side. On the other hand, the back side member 32 has a second back portion 321 detachably connected to the back side end portion of the second side portion 312 . The second side surface portion 312 connects the second front surface portion 311 and the second rear surface portion 321 in the front-rear direction.

The second front portion 311 has a circular outer peripheral edge when viewed from the front, and an opening 311a penetrating in the front-rear direction is formed near the center. The opening 311a also has a circular shape concentric with the outer peripheral edge of the second front portion 311 when viewed from the front. A cylindrical inner wall portion 313 that rises toward the back side is continuous with the second front portion 311 along the outer peripheral edge of the opening 311a. The inner wall portion 313 is inserted into a gap formed between the inner wall portion 213 of the inner case 20 and the cup portion 111 of the container 10 inserted therein. As a result, the outer peripheral surface of the inner wall portion 313 of the outer case 30 faces the inner peripheral surface of the inner wall portion 213 of the inner case 20 with a gap therebetween. The upper portion of the cup portion 111 of the container 10 is inserted into the space inside the inner wall portion 313 from the rear side. In a state in which the inner case 20 and the outer case 30 are connected, their central axes coincide with the rotation axis A1.

An inner wall portion 313 of the outer case 30 is formed with a plurality of slits 314 cut from the rear side. The plurality of slits 314 are arranged at regular intervals around the rotation axis A1. In this embodiment, six slits 314 are arranged at intervals of 60°. On the other hand, returning to FIG. 7, the inner wall portion 213 of the inner case 20 is provided with a thin plate-like elastic piece 250 extending along the circumferential direction inside one of the four enlarged diameter portions 213a. . A projection 251 extending radially inward is provided at the tip of the elastic piece 250 . The protrusions 251 are configured to be sequentially hooked and locked to the plurality of slits 314 as the outer case 30 rotates relative to the inner case 20 around the rotation axis A1. That is, the projection 251 applies a force to the inner wall portion 313 to resist a rotational force applied to the outer case 30 in a locked state in which the projection 251 is hooked on one of the slits 314 . However, when a certain amount of rotational force is applied to the outer case 30 , the elastic pieces 250 are elastically deformed so as to warp radially outward, and the protrusions 251 fall out of the slits 314 . As a result, the resisting force is weakened and the outer case 30 rotates. When the outer case 30 rotates and the projection 251 reaches the position of the next slit 314 , the projection 251 fits into this next slit 314 again. This again creates a locked state.

Each time the outer case 30 rotates by an angle (60° in this embodiment) corresponding to the arrangement interval of the slits 314 in the circumferential direction, the locked state is established. Further, each time the locked state is formed, the closed position where the first inlet 23 and the first outlet 24 of the inner case 20 are closed and the open position where they are opened alternately appear. The protrusion 251 locks into one of the plurality of slits 314 when the outer case 30 is in the closed position and locks into another one of the plurality of slits 314 when the outer case 30 is in the open position. be done. Therefore, switching between the open position and the closed position can be made easier for the user to understand. In addition, since it is securely locked, it is possible to prevent unintentional switching between the open position and the closed position when force is applied due to unexpected contact with the hand or vibration of the vehicle. Therefore, the outer case 30 can be easily and reliably set to the closed position and the open position. Therefore, the user can easily control the amount of opening of the vent holes 23 and 24 formed in the inner case 20 . In this embodiment, while the outer case 30 rotates once with respect to the inner case 20, the open position and the open position appear a plurality of times, more specifically, three times. To enable this, the slits 314 are arranged in a number equal to the number of closed positions present around the axis of rotation A1 plus the number of open positions.

The second rear portion 321 is a plate member having a circular outer peripheral edge, and the outer peripheral edge generally matches the second front portion 311 when viewed from the front. As shown in FIG. 14, a plurality of projecting portions 322 are arranged on the outer peripheral edge of the second rear surface portion 321 at predetermined intervals along the circumferential direction and project slightly outward in the radial direction. In this embodiment, these projections 322 are circumferentially spaced apart by 60° and each extend by 60°. On the other hand, as shown in FIG. 15, a plurality of protruding portions 317 slightly protruding toward the back side are arranged at predetermined intervals along the circumferential direction at the end of the second side portion 312 on the back side. ing. In this embodiment, these protrusions 317 are circumferentially spaced apart by 60° and each extend by 60°. As shown in FIG. 2, the plurality of protrusions 317 are respectively received in the circumferential gaps between the plurality of protrusions 322, and conversely, the plurality of protrusions 322 are circumferentially spaced between the plurality of protrusions 317. received in each gap.

The protrusions 317 and 322 are alternately arranged along the circumferential direction, thereby forming a rotation restricting portion that restricts the front side member 31 from rotating relative to the back side member 32 around the rotation axis A1. function as When the projecting portion 317 is fitted into the gap between the projecting portions 322, the projecting portion 317 is surrounded by the projecting portions 322 from both sides around the rotation axis A1. Similarly, when the projecting portion 322 is fitted into the gap between the projecting portions 317, it is surrounded by the projecting portions 317 from both sides around the rotation axis A1. Therefore, the protruding portion 317 and the protruding portion 322 can restrict mutual rotation in forward and reverse directions about the rotation axis A1. In other words, the rotation restricting portion described above restricts relative rotation of the front side member 21 with respect to the back side member 22 in the forward and reverse directions.

Although not shown in the previous figures, as shown in FIG. 16, the protruding portion 317 is provided with a protrusion 318 that protrudes radially inward. On the other hand, projections 323 projecting radially outward are provided in gaps between the plurality of projecting portions 322 on the outer peripheral portion of the second back surface portion 321 . When the front side member 31 and the rear side member 32 are connected, due to their elastic deformation, the protrusions 318 and 323 get over each other and the protrusions 318 and 323 are caught. As a result, the connected state between the front side member 31 and the rear side member 32 is maintained unless a strong external force is applied, and both members 31 and 32 are prevented from unintentionally coming off due to unexpected hand contact, vehicle vibration, or the like. There is no

An opening 321a penetrating in the front-rear direction is formed in the vicinity of the center of the second rear surface portion 321 . The opening 321a has a circular shape concentric with the outer peripheral edge of the second rear surface portion 321 when viewed from the front. Into this opening 321a, as shown in FIG. 2, the projecting wall 229 of the first back surface portion 221 of the inner case 20 is inserted in a state in which the flange portion 413 of the fixture 40 is inserted inside. As shown in FIG. 9, the projecting wall 229 is formed with a plurality of projections 240 extending radially outward and spaced apart in the circumferential direction. When the outer case 30 and the inner case 20 are connected, the fixture 40 projecting from the first rear surface portion 221 of the inner case 20 is passed through the opening 321a, and the second rear surface portion 321 is attached to the rear surface of the first rear surface portion 221. so that it covers the At this time, due to the elastic deformation of the projecting wall 229, the projection 240 and the second rear surface portion 321, the projection 240 climbs over the portion surrounding the opening 321a in the second rear surface portion 321, and both are caught in the front-rear direction. As a result, unless a strong external force is applied, the second rear portion 321 is prevented from falling off from the first rear portion 221 toward the rear side, and these members 321 and 221 are prevented from falling off due to unexpected hand contact, vehicle vibration, or the like. does not come off unintentionally. On the other hand, the protrusion 240 does not prevent rotation of the second back surface portion 321 around the rotation axis A1. Therefore, the second back portion 321 of the outer case 30 can freely rotate about the rotation axis A1 with respect to the first back portion 221 of the inner case 20 .

The outer case 30 is formed with air vents 33 and 34 . More specifically, the second back portion 321 is formed with a second inlet 33 for introducing into the outer case 30 the air blown out from the outlet of the air conditioner. On the other hand, the second front portion 311 is formed with a second discharge port 34 for discharging the air introduced into the outer case 30 through the second introduction port 33 to the outside. In the present embodiment, the second inlet 33 includes multiple (more specifically, three) communication ports 33a to 33c, and the second outlet 34 also includes multiple (more specifically, three) communication ports. ) including communication ports 34a to 34c. The communication ports 33 a to 33 c are arranged in the outer peripheral direction of the second rear portion 321 , and the communication ports 34 a to 34 c are also arranged in the outer peripheral direction of the second front portion 311 . The communication ports 33a to 33c are arranged at regular intervals around the rotation axis A1. The communication ports 34a to 34c are also arranged at regular intervals around the rotation axis A1.

In this embodiment, the communication ports 33a to 33c are arranged so as to overlap the communication ports 34a to 34c, respectively, when viewed from the front. In this embodiment, the communication ports 33a to 33c and the communication ports 34a to 34c have substantially the same shape, and overlap each other with little deviation when viewed from the front. The rotation restricting portion of the outer case 30 described above is positioned to ensure that the communication ports 33a to 33c and the communication ports 34a to 34c face each other when the front side member 31 and the rear side member 32 are connected. also has the function of

When the outer case 30 is in the open position, the communication ports 33a to 33c, which are the second introduction port 33, overlap the communication ports 23a to 23c, which are the first introduction port 23 of the inner case 20, respectively, when viewed from the front. Further, at this time, the communication ports 34a to 34c, which are the second discharge ports 34, respectively overlap the communication ports 24a to 24c, which are the first discharge ports 24 of the inner case 20 in a front view. In this embodiment, the communication ports 23a to 23c and 24a to 24c of the inner case 20 and the communication ports 33a to 33c and 34a to 34c of the outer case 30 have substantially the same shape. When the case 30 is in the open position, they overlap each other with little deviation when viewed from the front.

On the other hand, when the outer case 30 is in the closed position, the communication ports 33a to 33c, which are the second inlets 33, do not overlap the communication ports 23a to 23c, which are the first inlets 23, respectively, when viewed from the front. At this time, the communication ports 34a to 34c, which are the second discharge port 34, do not overlap the communication ports 24a to 24c, which are the first discharge port 24, respectively, but overlap the sign area 25 described above. Therefore, the sign in the sign area 25 can be visually recognized from the outside of the chemical volatilizer 1 through the communication ports 34a to 34 functioning as windows.

In other words, when the outer case 30 is in the closed position, the second back surface portion 321 of the outer case 30 covers all the communication ports 23a to 23c, which are the first inlets 23 of the inner case 20, from the outside and closes them. At this time, the second front portion 311 of the outer case 30 covers all the communication ports 24a to 24c, which are the first outlets 24 of the inner case 20, from the outside and closes them. On the other hand, when the outer case 30 is at the open position, the second rear surface portion 321 of the outer case 30 opens all of the communication ports 23a to 23c, which are the first introduction ports 23 of the inner case 20. FIG. Also, at this time, the second front portion 311 of the outer case 30 opens all of the communication ports 24a to 24c, which are the first discharge ports 24 of the inner case 20 .

As described above, when the outer case 30 is in the open position, the communication ports 23a to 23c and 24a to 24c of the inner case 20 and the communication ports 33a to 33c and 34a to 34c of the outer case 30 are arranged at regular intervals in the circumferential direction. They are arranged separately on three straight lines extending in the front-rear direction. As a result, the air blown out from the outlet of the air conditioner evaporates the medicine exuded from the holes formed in the back sheet 12, and moves the inside of the inner case 20 and the outer case 30 containing the inner case 20 from the rear to the front. can pass through properly and efficiently. Therefore, the chemical volatilizer 1 can appropriately volatilize the chemical. On the other hand, when the outer case 30 is in the closed position, all of the communication ports 23a to 23c and 24a to 24c of the inner case 20 are closed by the outer case 30, so that the medicine is confined in the inner case 20 and the medicine is wasted. volatilization is prevented.

As described above, the outer case 30 can be switched between the closed position and the open position by rotating relative to the inner case 20 about the rotation axis A1. At this time, the outer case 30 can rotate 360° with respect to the inner case 20 about the rotation axis A1. In addition, the outer case 30 is rotatable relative to the inner case 20 about the rotation axis A1 in both forward and reverse directions. Therefore, even if the chemical volatilizer 1 is installed on the left or right side of the user, regardless of whether the user is right-handed or left-handed, the user freely rotates the outer case 30, The operation of opening and closing the inner case 20 can be easily performed.

<3. Variation>
Although one embodiment of the present invention has been described above, the present invention is not limited to the above-described embodiment, and various modifications are possible without departing from the scope of the invention. For example, the following changes are possible. Also, the gist of the following modified examples can be combined as appropriate.

<3-1>
In the above embodiment, the outer case 30 in the open position opens all of the plurality of communication ports 24a to 24c of the first discharge port 24 of the inner case 20, and also opens the plurality of communication ports 23a to 23c of the first inlet 23. configured to open all of the However, the outer case 30 in the open position opens only a portion of the communication ports 24a to 24c of the first discharge port 24 of the inner case 20 and partially opens the communication ports 23a to 23c of the first inlet 23. May be configured to open. For example, in the outer case 30, part of the communication ports 33a to 33c, which are the second inlet 33, is omitted, and part of the communication ports 34a to 34c, which is the second discharge port 34, is omitted. can do.

<3-2>
In the above-described embodiment, the back side member 22 of the inner case 20 is formed with the claw portion 224 , and the front side member 21 is formed with a housing portion into which the claw portion 224 is inserted. However, on the contrary, the claw portion may be formed on the front side member 21 and the accommodation portion may be formed on the back side member 22 . Further, the rotation restricting portion that restricts the rotation of the front side member 21 with respect to the back side member 22 is not limited to the configuration including the claw portion and the accommodation portion as described above, and may include elements that engage each other in the rotation direction about the rotation axis A1. Various configurations can be employed. Further, the position where the rotation restricting portion for restricting the rotation of the front side member 21 with respect to the back side member 22 is formed is not limited to that described above. For example, in the case where the back side member 22 has a side portion extending forward from the outer peripheral portion of the first back portion 221 in addition to the first back portion 221, an accommodating portion is formed on the inner peripheral surface of the back portion. The front side member 21 may be formed with a claw portion that is fitted from the front side.

<3-3>
In the above embodiment, the uneven region C1 is arranged on the front surface (inner surface) of the first rear surface portion 221, but is not limited to this, and can be arranged at various positions on the inner surface of the inner case 20. can. At this time, the uneven region C1 is preferably arranged at a position where the liquid component of the medicine can easily flow.

<3-4>
In the above embodiment, a large number of ribs (convex portions) 226 extending substantially parallel to each other are formed in the uneven region C1. However, the uneven region C1 can be changed into various structures as long as fine spaces suitable for holding the liquid component of the medicine are formed. For example, in addition to the ribs 226 described above, a large number of ribs (projections) 237 that intersect (preferably orthogonally cross) these ribs 226 may be further formed in the uneven region C1 (see FIG. 17A). In this case, the ribs 226 and 237 spread like a grid, forming a large number of square minute spaces surrounded by the ribs 226 and 237 . Also, instead of or in addition to the ribs 226, a large number of grooves (recesses) may be formed. Similarly, instead of or in addition to the ribs 237, multiple grooves (recesses) may be formed. Also, instead of forming the protrusions linearly like the ribs 226 and 237, for example, as shown in FIG. Similarly, instead of linear grooves (recesses), recesses may be arranged in points. These examples also form microscopic spaces capable of holding the liquid component of the drug.

<3-5>
In the above-described embodiment, the clip portion 42 is provided on the fixture 40, and the chemical volatilizer 1 can be fixed to a louver or the like in a clip manner. However, the method of installing the chemical volatilizer 1 is not limited to this.

<3-6>
In the above-described embodiment, the flange portion 413 of the fixture 40 is provided with the protruding portion 419 that protrudes radially outward so as to come into contact with the protruding wall 229 of the outer peripheral portion 230 . On the contrary, as shown in FIG. 18A, a projecting portion 234 projecting from the base surface 233 of the projecting wall 229 of the outer peripheral portion 230 so as to come into contact with the flange portion 413 may be provided. In this case, the base surface 233 faces the side peripheral surface of the flange portion 413 and is spaced apart from the side peripheral surface. Moreover, as shown in FIG. 18B , a protruding portion 436 that protrudes so as to come into contact with the surrounding wall 228 of the outer peripheral portion 230 may be provided not on the flange portion 413 but on the body portion 411 . In this case, body 411 has a base surface 435 that faces and is spaced from enclosing wall 228 , and protrusion 436 projects from base surface 435 toward enclosing wall 228 . do. All of the above are examples, and projections extending from one to the other may be provided at various positions on the outer peripheral portion 230 and the base portion 41 . The protrusion can be located on the body 411 or the flange 413 or can be located on the outer periphery 230 to contact the body 411 or the flange 413 . Any number of such projections can be provided.

<3-7>
In the above-described embodiment, the inner wall portion 313 of the outer case 30 is formed with a plurality of slits 314 , and the inner wall portion 213 of the inner case 20 is provided with the protrusions 251 that are sequentially locked with the slits 314 . However, on the contrary, a plurality of slits are formed on the inner case 20 side (for example, the inner wall portion 213), and projections that are sequentially locked to these slits are provided on the outer case 30 side (for example, the inner wall portion 313). good too. Alternatively, a plurality of protrusions may be formed on the inner case 20 side (for example, the inner wall portion 213), and slits may be provided on the outer case 30 side (for example, the inner wall portion 313) to be sequentially locked to these protrusions. Alternatively, a plurality of protrusions may be formed on the outer case 30 side (for example, the inner wall portion 313), and slits may be provided on the inner case 20 side (for example, the inner wall portion 213) to be sequentially locked to these protrusions.

Alternatively, one of the outer case 30 and the inner case 20 may be formed with a plurality of slits, and the other of the outer case 30 or the inner case 20 may be provided with a plurality of protrusions that are simultaneously locked in part or all of these slits. good. Alternatively, one of the outer case 30 and the inner case 20 may be formed with a plurality of projections, and the other of the outer case 30 and the inner case 20 may be provided with a plurality of slits that are simultaneously locked to some or all of these projections. good. In this case, the force for locking the rotation of the outer case 30 with respect to the inner case 20 is increased. Moreover, when a plurality of projections are present, even if the projections or the elastic piece on which the projections are provided are partially broken, the function of locking the rotation can be maintained continuously.

<3-8>
In the above embodiment, the first discharge port 24 is formed only in the first front portion 211, but is not limited to this, and may be formed in the first side portion 212, for example, or in the first front portion 211 and the first discharge port 24. It may be arranged on both of the first side portions 212 . Instead of or in addition to this, the first inlet 23 may be formed, for example, in the first side surface portion 212 instead of being formed only in the first rear surface portion 221, or may be formed in the first rear surface portion 221 and the first rear surface portion 221. It may be arranged on both of the first side portions 212 . Also, only one first discharge port 24 may be formed instead of multiple, and instead of or in addition to this, only one first introduction port 23 may be formed instead of multiple. In addition, in the case of these modifications, the positions and numbers of the second outlets 34 and the second inlets 33 are also appropriately changed according to the configurations of the first outlets 24 and the first inlets 23 . Further, in the above embodiment, the inner case 20 is formed with a plurality of vents 23 and 24, but the inner case 20 may have only one vent. For example, one vent may be formed in the first rear portion 221, and air may be introduced and discharged through this vent. In this case, the positions and number of vent holes formed in the outer case 30 are also appropriately changed according to the configuration of the vent holes in the inner case 20 .

1 chemical vaporizer 10 container 11 container main body 11a opening 12 back sheet 20 inner case (first case)
21 front side member 22 rear side member 23 first inlet (vent)
23a to 23c Communication port 24 First discharge port (vent)
24a to 24c Communication port 211 First front part 211a Opening 212 First side part 221 First rear part 226 Rib (convex part)
230 outer peripheral portion 231 base surface 232 protruding portion 233 base surface 234 protruding portion 237 rib (convex portion)
238 projection 251 projection (locking element)
30 outer case (second case)
31 front side member 32 rear side member 33 second inlet (vent)
33a to 33c Communication port 34 Second discharge port (vent)
34a to 34c communication port 311 second front portion 312 second side portion 314 slit (locking element)
321 Second back portion 40 Fixing tool 41 Base portion 42 Clip portion (fixing portion)
411 trunk portion 413 flange portion 417 pressing portion 418 base surface 419 protrusion 435 base surface 436 protrusion A1 rotating shaft C1 uneven region

Claims (8)

A chemical volatilizer installed near an air outlet,
a container containing a drug and having a hole through which the drug exudes;
a first case that holds the container so as to cover the container from the outside;
a second case that holds the first case so as to cover it from the outside and is rotatable relative to the first case around a rotation axis that extends in the front-rear direction;
A vent is formed in the first case,
The second case rotates about the rotation axis with respect to the first case, thereby switching between a closed position that closes the vent of the first case and an open position that opens the vent of the first case. can switch between
The first case has an opening penetrating in the front-rear direction near the center, and a cylindrical inner wall portion rising toward the back side along the outer peripheral edge of the opening,
The inner wall has an enlarged diameter portion to which the container can be secured.
Drug volatilizer. The second case has an opening penetrating in the front-rear direction near the center thereof, and a tubular inner wall portion rising toward the back side along the outer peripheral edge of the opening of the second case,
The inner wall of the second case is located between the container and the inner wall of the first case.
The chemical volatilizer according to claim 1. wherein the vent of the first case includes a first inlet for the air and a first outlet for the air;
The chemical volatilizer according to claim 1 or 2 . The first case has a front portion, a back portion, and a first side portion connecting the front portion and the back portion in the front-rear direction,
The first inlet is formed in the back portion,
The first discharge port is arranged on at least one of the front portion and the first side portion,
The chemical volatilizer according to claim 3 . The first outlet includes a plurality of communication ports,
The first inlet includes a plurality of communication ports,
The second case is
closing all of the plurality of communication ports of the first outlet and the plurality of communication ports of the first inlet when the closed position is present;
When in the open position, open at least one of the plurality of communication ports of the first outlet and open at least one of the plurality of communication ports of the first inlet;
The chemical volatilizer according to claim 3 or 4 . A vent is formed in the second case,
The vent of the second case,
When the second case is in the open position, it overlaps the vent of the first case in a front view, and
When the second case is in the closed position, it does not overlap the vent of the first case in a front view.
The chemical volatilizer according to any one of claims 1 to 5 . The closed position and the open position alternately appear a plurality of times while the second case makes one rotation about the rotation axis with respect to the first case.
The chemical volatilizer according to any one of claims 1 to 6 . The second case is configured to be rotatable about the rotation axis in forward and reverse directions with respect to the first case.
The chemical volatilizer according to any one of claims 1 to 7 .

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