JP6754182B2 - Chemical vaporizer - Google Patents

Description

The present invention relates to a chemical liquid volatilizer that volatilizes a chemical liquid such as an air freshener.

Conventionally, in order to make a living space such as a living room, a toilet, or the inside of an automobile a comfortable space, a chemical liquid volatilizer that volatilizes a chemical liquid such as an air freshener has been used. As one of them, there is a type in which a chemical solution is stored in a container and a liquid absorbing core is inserted into the container to volatilize the chemical solution sucked up by the liquid absorbing core. In this type of chemical volatilizer, the liquid absorbing core is inserted so as to touch or substantially touch the inner wall surface of the mouth of the container so that the chemical does not spill due to shaking or tipping over of the container. However, if the mouth portion is completely closed with the liquid absorbing core, the pressure inside the container becomes excessive due to the temperature rise in the surrounding environment, and a large amount of the chemical solution is sucked up along the liquid absorbing core. Furthermore, the sucked-up chemical solution seeps out from the suction core, leading to waste of the chemical solution.

In view of the above points, Patent Documents 1 and 2 are fitted into the tubular neck or neck forming the mouth of the container so that the inside and outside of the container communicate with each other even when the liquid absorbing core is inserted into the container. It is proposed to form a slit in the inner plug. As a result, the pressure inside and outside the container is adjusted through the slit, and the pressure rise inside the container and, by extension, the ejection of a large amount of the chemical solution are suppressed.

Jikkai Sho 55-10700 Jikkai Sho 55-104435

The slit described above cannot always completely prevent the chemical solution from seeping out in large quantities. If the slit is large, it is considered that the effect of a certain level or more can be secured, but in that case, it is also possible that the chemical solution spills due to the shaking or tipping of the container. Therefore, the present inventor considered that it is important to return the exuded chemical solution to the container in order to prevent the chemical solution from being wasted.

In this respect, the slit as described above can also function as a return route for the chemical solution into the container. However, the chemical cannot return into the container unless air is released from the container. Therefore, when the chemical solution enters the slit, the air is more difficult to escape from the container and the chemical solution is difficult to return to the inside of the container, that is, the slit may be clogged with the chemical solution.

An object of the present invention is to provide a chemical liquid volatilizer capable of quickly returning a chemical liquid that has overflowed to the outside of a container through a liquid absorbing core into the container.

The chemical solution volatilizer according to the first aspect of the present invention is a chemical solution volatilizer for volatilizing a chemical solution, and includes a container and a liquid absorbing core. The container has a liquid space in which the chemical solution is stored. The container includes a mouth portion having an inner wall surface that defines a passage that connects the liquid space and the external space. The liquid absorbing core has an outer wall surface, and is inserted into the liquid space through the passage to suck up the chemical solution in such a manner that the outer wall surface contacts or substantially contacts the inner wall surface of the mouth portion. .. The outer wall surface of the liquid absorbing core extends in the axial direction of the liquid absorbing core, and in a state where the liquid absorbing core is inserted into the liquid space through the passage, the liquid space and the external space. A plurality of slits are formed to communicate with and. The plurality of slits are arranged at equal intervals or substantially at equal intervals along the circumferential direction of the liquid absorbing core.

Here, a plurality of slits are formed on the outer wall surface of the liquid absorbing core. As a result, even when the liquid absorbing core is inserted into the mouth of the container, it is possible to secure a plurality of routes for communicating the inside and outside of the container. Therefore, when the chemical solution overflows to the outside of the container through the suction core, one route mainly functions as a return route for the chemical solution into the container, and another route mainly functions as an air vent route to the outside of the container. Can be made to. In addition, since these slits are arranged at equal intervals or approximately equal intervals along the circumferential direction of the liquid absorbing core, the roles of a plurality of routes are divided by the plurality of slits (role as a return route for the chemical solution and air bleeding). The division of roles as a route) can be effectively realized. As a result, the route due to the plurality of slits is less likely to be clogged with the chemical solution, and the chemical solution that has overflowed to the outside of the container along the liquid absorbing core can be quickly returned to the inside of the container.

The chemical liquid volatilizer according to the second aspect of the present invention is the chemical liquid volatilizer according to the first aspect, and the plurality of slits are in a state where the liquid absorbing core is inserted into the liquid space through the passage. At least extends to the lower edge of the mouth.

Here, a plurality of slits extend to at least the lower end edge of the mouth portion in a state where the liquid absorbing core is inserted into the mouth portion of the container. Therefore, the routes provided by these slits can more effectively serve as a return route for the chemical solution and an air bleeding route.

The chemical liquid volatilizer according to the third aspect of the present invention is the chemical liquid volatilizer according to the first aspect or the second aspect, in a state where the liquid absorbing core is inserted into the liquid space through the passage. In the cross-sectional view of the liquid absorbing core, 0.9 mm ≦ w1 ≦ 1.6 mm, where w1 is the distance from the inner wall surface of the mouth portion to the deepest portion of the slit.

Here, the size w1 of the cross section of the return route and the air bleeding route of the chemical solution formed by the slit is 0.9 mm ≦ w1 ≦ 1.6 mm. Therefore, the chemical solution can be quickly returned to the container, and the chemical solution can be prevented from spilling from the container when the container shakes or falls. Further, 1.0 mm ≦ w1 ≦ 1.5 mm is preferable, and 1.1 mm ≦ w1 ≦ 1.4 mm is more preferable.

The chemical liquid volatilizer according to the fourth aspect of the present invention is the chemical liquid volatilizer according to any one of the first to third viewpoints, and the inner wall surface of the mouth portion has at least the lower end edge of the mouth portion. No extending notch is formed.

When the inner wall surface of the mouth of the container has a notch extending at least to the lower edge of the mouth, when the notch and the slit are aligned in the circumferential direction, the two openings are combined. A relatively large opening will be formed. However, here, such a notch is not formed on the inner wall surface of the mouth portion of the container. Therefore, it is possible to prevent the chemical solution from spilling from the container when the container shakes or falls.

The chemical liquid volatilizer according to the fifth aspect of the present invention is the chemical liquid volatilizer according to any one of the first to fourth viewpoints, and is included in the plurality of slits in the cross-sectional view of the liquid absorbing core. At least two slits are different in size.

Here, of the plurality of slits, at least two slits have different sizes. Therefore, the division of roles of a plurality of routes by the plurality of slits (the division of the role as the return route of the chemical solution and the division of the role as the air bleeding route) can be more effectively realized.

The chemical liquid volatilizer according to the sixth aspect of the present invention is a chemical liquid volatilizer according to any one of the first to fifth aspects, and the liquid absorbing core is inserted into the liquid space through the passage. In the vicinity of the upper part of the mouth portion, a dish portion that opens upward is formed around the liquid absorbing core.

Here, a dish is formed around the liquid absorbing core in the vicinity of the upper part of the mouth of the container. And since this dish portion opens upward, the chemical solution can be stored for a while. As a result, even when a large amount of the chemical solution overflows from the liquid absorbing core, the chemical solution can be returned to the return route before it spills along the outer wall surface of the container or the like.

According to the present invention, a plurality of slits are formed on the outer wall surface of the liquid absorbing core. As a result, even when the liquid absorbing core is inserted into the mouth of the container, it is possible to secure a plurality of routes for communicating the inside and outside of the container. Therefore, when the chemical solution overflows to the outside of the container through the suction core, one route mainly functions as a return route for the chemical solution into the container, and another route mainly functions as an air vent route to the outside of the container. Can be made to. In addition, since these slits are arranged at equal intervals or approximately equal intervals along the circumferential direction of the liquid absorbing core, the roles of a plurality of routes are divided by the plurality of slits (role as a return route for the chemical solution and air bleeding). The division of roles as a route) can be effectively realized. As a result, the route due to the plurality of slits is less likely to be clogged with the chemical solution, and the chemical solution that has overflowed to the outside of the container along the liquid absorbing core can be quickly returned to the inside of the container.

The front view of the chemical liquid volatilizer which concerns on one Embodiment of this invention. Front view of the chemical volatilizer with the cap removed. FIG. 2 is a cross-sectional view taken along the line AA of FIG. Perspective view of the liquid absorbing core. Sectional view of the liquid absorption core. FIG. 3 is a cross-sectional view of a liquid absorbing core according to a modified example. Sectional drawing of the liquid absorption core which concerns on another modification. The cross-sectional view which shows the attachment structure of the neck part, the liquid absorption core, and the inner plug. The cross-sectional view which shows the attachment structure of the neck part, the liquid absorption core, and the inner plug which concerns on the modification. The cross-sectional view which shows the attachment structure of the neck part, the liquid absorption core, and the inner plug which concerns on another modification. The cross-sectional view which shows the attachment structure of the neck part, the liquid absorption core, and the inner plug which concerns on still another modification.

Hereinafter, the chemical liquid volatilizer according to the embodiment of the present invention will be described with reference to the drawings.

<1. Overall configuration of chemical volatilizer>
As shown in FIGS. 1 and 2, the chemical liquid volatilizer 100 according to the present embodiment is inserted into the container 1 via the container 1 containing the chemical liquid and the mouth portion 5 of the container 1 and sucks up the chemical liquid. It is provided with a liquid absorbing core 2. Further, the chemical liquid volatilizer 100 further includes a cap 3 that covers the mouth portion 5 of the container 1 together with the liquid absorbing core 2 protruding from the mouth portion 5. When the cap 3 is attached, the liquid absorbing core 2 is largely sealed by the cap 3 and is shielded from the external space. Therefore, in this state, continuous volatilization of the chemical solution from the liquid absorbing core 2 does not occur. Therefore, the cap 3 is attached when the chemical volatilizer 100 is not in use, and is removed when the chemical liquid volatilizer 100 is used. When the cap 3 is removed, the chemical solution starts to volatilize from the liquid absorbing core 2 impregnated with the chemical solution into the surrounding space, and the effect of the chemical solution can be exhibited.

In the present embodiment, strictly speaking, the mouth portion 5 of the container 1 is composed of the neck portion 12 of the container 1 and the tubular inner plug 4 fitted in the neck portion 12. Then, the liquid absorbing core 2 is inserted into the inner plug 4. At this time, the inner plug 4 supports the liquid absorbing core 2 so as to stand upright in the container 1.

In the following description, top and bottom, left and right, and front and back shall be defined as shown in FIGS. 2 and 3 unless otherwise specified. 2 and 3 show the usage state of the chemical solution volatilizer 100 from which the cap 3 has been removed. As shown in the figure, the chemical liquid volatilizer 100 is installed in such a manner that the liquid absorbing core 2 projects upward from the container 1 during use. Hereinafter, the chemical solution will be described, and then the liquid absorbing core 2 and the container 1 (including the inner plug 4) will be described in detail. After that, a method of using the chemical liquid volatilizer 100 will be described.

<2. Chemical solution>
The chemical solution contains a functional component in order to make a living space such as a living room or a toilet in which the chemical solution volatilizer 100 is installed a comfortable space. Examples of such functional components include fragrances, deodorant components, insecticide components, insect repellent components, repellent components, antibacterial agent components, and the like, and one of these components can be used alone. However, a plurality of them can be used in combination. Further, the functional component here may be either oil-based or water-based as long as it can be volatilized. The chemical solution is an fragrance solution when it contains a fragrance, a deodorant solution when it contains a deodorant component, an insect repellent solution when it contains an insect repellent component, and an antibacterial solution when it contains an antibacterial agent component. used. Typically, as the chemical solution, an aromatic solution containing a fragrance or an aromatic deodorant solution containing a fragrance and a deodorant component is used.

The viscosity of the chemical solution is preferably 0.1 to 30 mPa · s, more preferably 0.1 to 20 mPa · s, and further preferably 0.1 to 10 mPa · s in an environment of 25 ° C. preferable. The numerical value of the viscosity here is a value measured in an environment of 25 ° C. using a vibration type viscometer (manufactured by VM-3OO-L SEKONIC Corporation).

<3. Liquid absorption core>
The liquid absorbing core 2 is a member for sucking out the chemical solution from the container 1 and volatilizing it to the outside. As shown in FIG. 4, the liquid absorbing core 2 according to the present embodiment is a rod-shaped member extending linearly and is formed in a columnar shape. As described above, the liquid absorbing core 2 is inserted into the container 1 from the mouth portion 5 of the container 1 and used. At this time, as shown in FIGS. 2 and 3, the outer wall surface 2a of the liquid absorbing core 2 is in contact with or substantially in contact with the inner wall surface of the mouth portion 5 of the container 1 (inner wall surface 4a of the inner plug 4). , Is inserted into the mouth 5 (inner plug 4). Further, as shown in the figure, the axial length of the liquid absorbing core 2 is such that when the lower end portion 21 of the liquid absorbing core 2 comes into contact with the bottom surface 111 of the container 1, the upper end portion 22 of the liquid absorbing core 2 is set. It is preferable to set the length so as to protrude from the mouth portion 5. When the lower end 21 of the liquid absorbing core 2 is in contact with the bottom surface 111 of the container 1 during use, the liquid absorbing core 2 can easily suck up the chemical liquid even if the remaining amount of the chemical liquid is low, and the liquid absorbing core 2 can easily suck up the chemical liquid from the mouth 5. This is because the chemical solution can be efficiently volatilized from the protruding portion of the above.

As shown in FIG. 4, a slit 25 extending in the axial direction of the liquid absorbing core 2 is formed on the outer wall surface 2a of the liquid absorbing core 2. The slit 25 serves as an air hole for communicating the inside and outside of the container 1 between the outer wall surface 2a of the liquid absorbing core 2 and the inner wall surface of the mouth portion 5 in a state where the liquid absorbing core 2 is inserted into the container 1. Function. That is, since air can enter and exit the container 1 through the slit 25, a significant pressure difference between the inside and outside of the container 1 is unlikely to occur even when the liquid absorbing core 2 is inserted into the container 1. .. As a result, excessive pressure is unlikely to occur in the container 1 even when the temperature of the ambient environment rises, and the chemical solution is prevented from being excessively sucked up along the liquid absorbing core 2 and sometimes ejected.

Further, the above slit 25 also functions as a return route for the chemical solution into the container 1. That is, although the amount of the chemical solution sucked up is suppressed by the above-mentioned pressure adjusting function of the slit 25, the chemical solution that has risen along the liquid absorbing core 2 may seep out from the liquid absorbing core 2 to a considerable extent. However, such a chemical solution that overflows outside the container 1 can return to the inside of the container 1 again through the slit 25 connecting the inside and outside of the container 1.

As shown in FIG. 4, the slit 25 according to the present embodiment is formed over the entire axial direction of the liquid absorbing core 2. As a result, the chemical solution that has entered the slit 25 can easily return to the lower end 21 of the liquid absorbing core 2 along the slit 25. In particular, when the lower end 21 of the liquid absorbing core 2 is in contact with the bottom surface 111 of the container 1, it can easily return to the bottom surface 111 of the container 1. However, the slit 25 does not necessarily have to be formed over the entire axial direction of the liquid absorbing core 2. However, from the viewpoint of efficiently exerting the return route function of the chemical solution, the lower end of the slit 25 is at least up to the lower end edge of the mouth portion 5 of the container 1 in the used state in which the liquid absorbing core 2 is inserted into the container 1. It is preferably extended. In other words, the lower end of the slit 25 preferably extends to at least the lower end edge of the inner plug 4, and more preferably extends to the lower end edge of the neck portion 12 below it. Further, in the same state, it is preferable that the upper end of the slit 25 extends to the upper end edge of the mouth portion 5 of the container 1. In other words, the upper end of the slit 25 preferably extends to the upper end edge of the inner plug 4, which will be described later.

Further, the slit 25 is preferably small in size so that the chemical solution does not spill through the slit 25 even when the container 1 is shaken or overturned. Specifically, the size w1 of the slit 25 is 0.9 mm ≦ w1 ≦ 1.6 mm when the above pressure adjustment function, the return route function of the chemical solution, the spill prevention function of the chemical solution at the time of falling, etc. are taken into consideration. It is preferable, 1.0 mm ≦ w1 ≦ 1.5 mm is more preferable, and 1.1 mm ≦ w1 ≦ 1.4 mm is further preferable. The size w1 referred to here is the deepest depth of the slit 25 from the inner wall surface of the mouth portion 5 in the cross-sectional view of the liquid absorbing core 2 in a state where the liquid absorbing core 2 is inserted into the container 1 via the mouth portion 5. It can be said to be the distance to the part (see FIG. 5). This distance can be measured along the normal direction of the inner wall surface of the mouth portion 5.

As shown in FIG. 5, the shape of the slit 25 in the cross-sectional view is a triangle (or a fan shape) in the present embodiment. However, as shown in FIG. 6, it can be formed into another polygon such as a quadrangle, or it can be formed into a semicircle. That is, the cross-sectional shape of the slit 25 is not particularly limited, but from the viewpoint of ease of molding, a triangle (or fan shape) is preferable. Further, the cross-sectional shape of the plurality of slits 25 may be different, such as a triangular shape and a quadrangular shape. The size w1 of the slit 25 described above can be measured in various ways depending on the shape of the slit 25. In such a case, the size w1 of the slit 25 varies from the inner wall surface of the mouth portion 5 to the deepest portion of the slit 25. It can be the longest distance (see FIG. 6).

Further, as shown in FIG. 5, a plurality of slits 25 are formed. In this case, at least one slit 25 can function as a return route for the chemical solution, and another at least one slit 25 can function as an air passage. That is, it is difficult for the chemical solution to return to the inside of the container 1 unless air is released from the inside of the container 1. However, since the plurality of slits 25 are formed, the return route of the chemical solution and the air bleeding route are separately established, and the chemical solution can be quickly returned to the inside of the container 1.

As shown in FIG. 5, these slits 25 are arranged at equal intervals or substantially at equal intervals along the circumferential direction of the liquid absorbing core 2 in order to effectively realize the division of roles of the slits 25. In the present embodiment in which two slits 25 are formed, these slits 25 are arranged at positions separated by 180 ° in the circumferential direction of the liquid absorbing core 2. Of course, the number of slits 25 arranged at equal intervals or substantially equal intervals may be three or four or more (see FIG. 7). When the slits 25 are arranged at substantially equal intervals, the slits 25 are located at positions as far apart as possible from each other. Therefore, the passage of the chemical solution and the passage of air are easily separated, and different slits 25 are likely to play different roles.

Further, in the present embodiment, the slits 25 are formed in different sizes in order to more effectively realize the division of roles of the slits 25. Normally, the larger slit 25 serves as the air route and the smaller slit 25 serves as the chemical route. When three or more slits 25 are formed, at least two slits may have different sizes. Further, the size referred to here mainly means the above-mentioned w1, but can also be considered as the cross-sectional area of the slit 25. That is, the above-mentioned w1 may be the same and the cross-sectional areas of the slits 25 may be different among the plurality of slits 25, or w1 may be different while the cross-sectional area is the same.

The material constituting the liquid absorbing core 2 is not particularly limited as long as it is a material capable of sucking up the chemical solution and volatilizing the sucked up chemical solution into the external space. For example, various materials such as nylon, polyethylene terephthalate, polypropylene, polyethylene, polyoxymethylene, isoparaffin, rattan, and cellulose can be used as the material of the liquid absorbing core 2. Further, the liquid absorbing core 2 is preferably made of a material that does not swell when impregnated with the chemical solution so that the slit 25 is not filled by deformation.

To give a particularly preferable example, as the material of the liquid absorbing core 2, a material formed of a material containing polyester and / or nylon can be used. When the liquid absorbing core 2 made of a material containing polyester and / or nylon is used in this way, it is possible to suppress the deformation of the liquid absorbing core 2 at a high temperature and maintain its shape stably. Become.

The type of polyester used as the material of the liquid absorbing core 2 is not particularly limited, and examples thereof include polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate. These polyesters may be used alone or in combination of two or more. Among these polyesters, polyethylene terephthalate is preferably mentioned from the viewpoint of more effectively suppressing the deformation of the liquid absorbing core 2 at a high temperature.

The type of nylon used as the material of the liquid absorbing core 2 is not particularly limited, and examples thereof include nylon 6, nylon 6, 6 and nylon 4, 6. These nylons may be used alone or in combination of two or more.

The liquid absorbing core 2 may be used alone by selecting one from polyester and nylon, or may be used in combination of two or more from these.

The content of polyester and / or nylon in the material forming the liquid absorbing core 2 is, for example, 10% by weight or more, preferably 30 to 100% by weight, more preferably 50 to 100% by weight, still more preferably 70 to 100% by weight. %, Especially preferably 80 to 100% by weight, most preferably 90 to 100% by weight.

The liquid absorbing core 2 may contain, if necessary, other resin materials such as polyolefins such as polyethylene and polyprepylene; acrylics; vinylon; and polyurethanes, in addition to polyester and / or nylon as its constituent materials. However, since polyolefin can be a factor of deforming the liquid absorbing core 2 at a high temperature, it is preferable that the liquid absorbing core 2 contains a small amount of polyolefin, and it is more preferable that the liquid absorbing core 2 does not substantially contain polyolefin. Specifically, the content of polyolefin in the material forming the liquid absorbing core 2 is usually 50% by weight or less, preferably 30% by weight or less, and more preferably 0% by weight.

The liquid absorbing core 2 is formed by welding or adhering fibrous polyester and / or nylon to a predetermined shape, fibrous polyester and / or nylon so that the chemical solution in the container 1 can be sucked up. It may be knitted into a predetermined shape, polyester and / or nylon of a non-woven fabric may be formed into a predetermined shape, polyester and / or nylon may be formed into a predetermined shape in a sponge shape, or the like.

<4. Container>
As shown in FIGS. 2 and 3, the container 1 according to the present embodiment includes a body portion 11 and a neck portion 12 connected to an upper portion of the body portion 11, and these are integrally formed. There is. The body portion 11 has a bottom surface 111, a side surface 112 that rises from the bottom surface 111, and an upper surface 113 that is continuous with the upper end edge of the side surface 112 and extends so as to face the bottom surface 111. A space S1 surrounded by the bottom surface 111, the side surface 112, and the top surface 113 is formed in the body portion 11, and the chemical solution is housed therein. Hereinafter, the space S1 is referred to as a liquid space S1.

The neck portion 12 is formed in a tubular shape, and particularly in the present embodiment, the neck portion 12 is formed in a cylindrical shape. The inner wall surface 12a of the neck portion 12 defines a passage that communicates the liquid space S1 and the external space. The neck portion 12 extends upward from the vicinity of the center of the upper surface 113 of the body portion 11, and has a diameter smaller than that of the body portion 11. As a result, the upper surface 113 of the body portion 11 forms a shoulder portion. Therefore, in the following, the upper surface 113 of the body portion 11 may be referred to as the shoulder portion 113. As shown in the figure, the body portion 11 according to the present embodiment has a substantially rectangular parallelepiped shape that is wide in the left-right direction and narrow in the front-rear direction. The shoulder portion 113 is continuous with the lower end edge of the neck portion 12.

A spiral male screw 14 is formed on the outer wall surface 12b of the neck portion 12. The male screw 14 is screwed with a female screw (not shown) of the cap 3, and the cap 3 is detachably fixed to the neck portion 12 by these screws.

The material constituting the container 1 (excluding the inner plug 4) is a resin in the present embodiment, but is not limited to this example, and may be, for example, glass or the like. From the viewpoint of making the remaining amount of the chemical solution visible, it is preferable to select a transparent or translucent material.

The inner plug 4 is a tubular member that is fitted into the neck portion 12, and is a cylindrical member in the present embodiment. The inner wall surface 4a of the inner plug 4 defines a passage S2 for communicating the liquid space S1 and the external space, and the liquid absorbing core 2 is inserted into the passage S2 in order to suck up the chemical liquid from the liquid space S1.

FIG. 8 is a cross-sectional view of the mounting structure of the neck portion 12, the liquid absorbing core 2, and the inner plug 4. As shown in the figure, the inner plug 4 according to the present embodiment has a main body 41 in the center of the top and bottom, an upper 42 continuous with the upper end of the main body 41, and a lower 43 continuous with the lower end of the main body 41. The outer diameter of the main body 41 is substantially equal to the inner diameter of the neck 12, whereby the inner plug 4 is press-fitted into the neck 12 and firmly fixed. Further, the upper portion 42 of the inner plug 4 includes a flange portion protruding outward in the radial direction from the main body portion 41. Therefore, the inner plug 4 can be inserted into the neck portion 12 from the lower 43 side until the flange portion abuts on the upper end edge of the neck portion 12. The outer diameter of the lower portion 43 is slightly smaller than the inner diameter of the neck portion 12, and the outer wall surface of the lower portion 43 forms a space with the inner wall surface 12a of the neck portion 12.

The lower portion 43 of the inner plug 4 according to the present embodiment is configured to increase in diameter as the passage S2 moves downward. Further, the inner wall surface 4a in the lower portion 43 is formed as a diameter-expanded surface B1 that continuously expands the diameter of the passage S2. In particular, the enlarged diameter surface B1 has a linear shape in a vertical cross-sectional view, and linearly expands the diameter of the passage S2. When the angle formed by the enlarged diameter surface B1 and the central axis of the inner plug 4 is θ1 in the vertical cross-sectional view, θ1 is preferably an acute angle, more preferably 5 ° ≦ θ1 ≦ 75 °. It is more preferable that 10 ° ≦ θ1 ≦ 45 °. In the present embodiment, the enlarged diameter surface B1 is formed over the entire circumferential direction.

On the other hand, the upper portion 42 of the inner plug 4 according to the present embodiment is configured to increase in diameter as the passage S2 moves upward. Further, the inner wall surface 4a in the upper portion 42 includes a diameter-expanded surface B2 that continuously expands the diameter of the passage S2. In particular, the diameter-expanded surface B2 is linear in a vertical cross-sectional view, and the passage S2 is linearly expanded in diameter. When the angle formed by the enlarged diameter surface B2 and the central axis of the inner plug 4 in the vertical cross-sectional view is θ2, θ2 is preferably an acute angle, more preferably 5 ° ≤ θ2 ≤ 75 °. It is more preferable that 10 ° ≦ θ2 ≦ 45 °. In the present embodiment, the enlarged diameter surface B2 is formed over the entire circumferential direction.

The upper portion 42 of the inner plug 4 configured as described above forms a dish portion 45 that opens upward around the liquid absorbing core 2 in a state where the liquid absorbing core 2 is inserted into the passage S2. The dish portion 45 is sucked up from the liquid space S1 by the liquid absorbing core 2 and serves as a saucer for the chemical liquid that has exuded from the liquid absorbing core 2 outside the container 1. As a result, the chemical solution is prevented from spilling along the outer wall of the container 1 and the like. Further, since the dish portion 45 defines an inverted truncated cone-shaped space that narrows downward, the liquid absorbing core 2 can be easily positioned when the liquid absorbing core 2 is inserted into the inner plug 4.

In the present embodiment, the cross-sectional diameter of the passage S2 at the position of the main body 41 is substantially equal to the cross-sectional diameter of the liquid absorbing core 2. Therefore, the liquid absorbing core 2 is press-fitted into the inner plug 4 and is firmly supported. When the liquid absorbing core 2 is press-fitted into the inner plug 4, the outer wall surface 2a of the liquid absorbing core 2 and the inner wall surface 4a of the inner plug 4 are in contact with each other or are substantially in contact with each other. Therefore, a gap along the circumferential direction is not substantially formed between the outer wall surface 2a of the liquid absorbing core 2 and the inner wall surface 4a of the inner plug 4. However, as described above, the slit 25 is formed on the outer wall surface 2a of the liquid absorbing core 2. Therefore, these slits 25 form an air hole that communicates the liquid space S1 and the external space between the outer wall surface 2a of the liquid absorbing core 2 and the inner wall surface 4a of the inner plug 4.

Further, in the present embodiment, a groove 46 extending in the vertical direction is formed on the inner wall surface 4a of the inner plug 4. The groove 46 also forms an air hole between the outer wall surface 2a of the liquid absorbing core 2 and the inner wall surface 4a of the inner plug 4 when the liquid absorbing core 2 is inserted into the passage S2. However, the groove 46 does not reach the lower portion 43 of the inner plug 4, and it is difficult to function as a return route for the chemical solution like the slit 25. However, the groove 46 can effectively function as an air passage that can pass through the liquid absorbing core 2. Although one such groove 46 is formed in the present embodiment, it is possible to form a plurality of such grooves 46. Further, in the present embodiment, the inner wall surface 4a of the inner plug 4 mainly excludes the groove 46, and forms a smooth curved surface along the circumferential direction in the cross-sectional view. Therefore, the inner plug 4 is relatively easy to manufacture.

The material constituting the inner plug 4 is a resin in the present embodiment, and more specifically, polyethylene terephthalate. However, any material can be selected as long as it can fulfill the above-mentioned functions of the inner plug 4.

<5. How to use the chemical volatilizer ＞
Hereinafter, how to use the chemical liquid volatilizer 100 will be described. First, before the start of use, a cap 3 is attached to the mouth portion 5 of the container 1, and the liquid absorbing core 2 and the chemical solution are generally sealed from the external space. Therefore, in many cases, the chemical solution leaked to the outside of the container 1 via the liquid absorbing core 2 cannot be volatilized in the external space and is accumulated in the closed space inside the cap 3.

Therefore, in order to prevent the chemical solution accumulated in the cap 3 from spilling, the cap 3 is removed at the start of use with the bottom surface 111 of the container 1 facing down and the cap 3 facing up. As a result, the chemical solution in the cap 3 is received in the above-mentioned dish portion 45 formed around the liquid absorbing core 2.

Even after the cap 3 is opened, the chemical liquid volatilizer 100 is installed while keeping the bottom surface 111 downward and the liquid absorption core 2 upward. As a method of installation, for example, a method of placing the bottom surface 111 on a table or a method of suspending the bottom surface 111 can be considered.

When installed as described above, the chemical solution collected in the dish 45 falls toward the liquid space S1 by gravity along one slit 25 of the liquid absorbing core 2, usually a smaller slit 25. Slit. At this time, another slit 25, usually a larger slit 25, functions as an air vent route. Therefore, the chemical solution flows relatively smoothly in the slit 25, is less likely to cause clogging, and the chemical solution can quickly return to the liquid space S1. When three or more slits 25 are present, a plurality of return routes and / or air vent routes for the chemical solution may be formed. Then, when the lower portion 43 of the inner plug 4 is reached, the diameter of the inner wall surface 4a of the inner plug 4 is increased, so that the return route of the chemical solution is also increased in diameter. Therefore, due to this diameter increase, the action of the surface tension of the chemical solution that has moved in a narrow space is weakened. As a result, clogging due to the chemical solution is less likely to occur in the narrow space surrounded by the inner plug 4 and the neck portion 12 formed around the liquid absorbing core 2. In particular, in the present embodiment, since the enlarged diameter surface B1 constitutes an inclined surface facing downward, the chemical solution can flow so as to slide along the inclined surface. Further, by expanding the diameter of the return route of the chemical solution as described above, the flow velocity of the chemical solution increases in the vicinity of the lower 43 of the inner plug 4, and the chemical solution quickly returns to the liquid space S1. Then, at this time, the air in the liquid space S1 can flow out to the outside mainly through the remaining slits 25 and the grooves 46. Therefore, the return of the drug solution is not hindered by the inability of air to escape. As a result, waste of the chemical solution is prevented.

After opening the cap 3, the functional components contained in the chemical solution are continuously volatilized from the liquid absorbing core 2 to the external space. As a result, the space in which the chemical liquid volatilizer 100 is installed can be made a comfortable space. In particular, the slit 25 and the groove 46 described above function as air passages for adjusting the pressure inside and outside the container 1 in the steady state after the chemical solution accumulated in the dish 45 returns to the liquid space S1. To do.

Further, not only at the start of use, the pressure in the container 1 may increase due to a temperature rise in the surrounding environment or the like, and a large amount of the chemical solution may be sucked up by the liquid absorbing core 2. Even in such a case, the chemical solution is accumulated in the dish 45, and the above-mentioned return route of the chemical solution can similarly exert its function.

<6. Modification example>
Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. For example, the following changes are possible. In addition, the gist of the following modified examples can be combined as appropriate.

<6-1>
Since the slit 25 secures an air hole for communicating the liquid space S1 and the external space, the groove 46 can be omitted. Alternatively, the groove 46 may be configured to reach the lower part 43 of the inner plug 4. However, in this case, when the positions of the groove 46 and the slit 25 in the circumferential direction match, a relatively large opening is formed by the combination of the two openings depending on the size of both openings, and the container 1 sways. Unexpected liquid leakage may occur when the product falls over. Therefore, when forming both the slit 25 and the groove 46 reaching the lower portion 43 of the inner plug 4, it is preferable to adjust the sizes of both openings.

<6-2>
In the above embodiment, the diameter of the passage S2 is continuously and linearly increased as it goes downward, but the diameter may be increased stepwise as the diameter-expanded surface B1 goes downward (see FIG. 9A). The surface B1 may be curved in a vertical cross-sectional view. It is also possible to combine a surface whose diameter increases toward the bottom and a surface whose diameter does not increase (see FIG. 9B). The same applies to the upper diameter-expanded surface B2.

<6-3>
The inner plug 4 can be omitted, and the liquid absorbing core 2 can be inserted into the passage defined by the inner wall surface 12a of the neck portion 12. At this time, the outer wall surface 2a of the liquid absorbing core 2 can be configured to be in contact with or substantially in contact with the inner wall surface 12a of the neck portion 12. Even in this case, the slit 25 can communicate the liquid space S1 and the external space in a state where the liquid absorbing core 2 is inserted into the mouth portion 5.

<6-4>
As shown in FIG. 10, the dish portion 45 can be composed of an inner plug 4 and a neck portion 12. Further, when the inner plug 4 is omitted as in the modified example 6-3, a dish portion 45 having the same shape as that formed in the inner plug 4 can be formed on the upper portion of the neck portion 12.

<6-5>
In the above embodiment, the enlarged diameter surface B1 is formed over the entire circumferential direction, but it can also be partially formed in the circumferential direction. If the enlarged diameter surface B1 is formed at least at the same position in the circumferential direction as the slit 25, the diameter of the return route of the above-mentioned chemical solution can be increased. Similarly, the dish portion 45 can also be formed partially in the circumferential direction instead of the entire circumferential direction.

100 Chemical volatilizer 1 Container 12 Neck (mouth)
12a Inner wall surface 2 Liquid absorbing core 2a Outer wall surface 25 Slit 4 Inner plug (mouth)
4a Inner wall surface 42 Upper 45 Dish part S1 Liquid space S2 Passage

Claims (5)

A chemical volatilizer that volatilizes chemicals.
A container having a liquid space for accommodating the chemical liquid and including a mouth portion having an inner wall surface that defines a passage communicating the liquid space and the external space.
It has an outer wall surface, and is provided with a liquid absorbing core that is inserted into the liquid space through the passage to suck up the chemical solution in such a manner that the outer wall surface is in contact with the inner wall surface of the mouth portion at least partially. ,
The outer wall surface of the liquid absorbing core extends in the axial direction of the liquid absorbing core, and in a state where the liquid absorbing core is inserted into the liquid space through the passage, the liquid space and the external space. Multiple slits are formed to communicate with
Wherein the plurality of slits are arranged at equal intervals along the circumferential direction of the wick,
A notch is formed on the inner wall surface of the mouth portion, and the notch does not extend to the lower end edge of the mouth portion.
Chemical volatilizer. The plurality of slits extend to at least the lower end edge of the mouth portion in a state where the liquid absorbing core is inserted into the liquid space through the passage.
The chemical volatilizer according to claim 1. In a state where the liquid absorbing core is inserted into the liquid space through the passage, the distance from the inner wall surface of the mouth portion to the deepest portion of the slit is defined as w1 in the cross-sectional view of the liquid absorbing core. When 0.9 mm ≦ w1 ≦ 1.6 mm,
The chemical volatilizer according to claim 1 or 2. In the cross-sectional view of the liquid absorbing core, the sizes of at least two slits included in the plurality of slits are different.
The chemical volatilizer according to any one of claims 1 to 3 . In a state where the liquid absorbing core is inserted into the liquid space through the passage, a dish portion that opens upward is formed around the liquid absorbing core in the vicinity of the upper part of the mouth portion.
The chemical volatilizer according to any one of claims 1 to 4 .

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