JP2020163031A - Chemical volatilizer - Google Patents

Abstract

To prevent leaked chemical from polluting the outer surface of the container and the surrounding environment, in a chemical volatilizer that sucks up chemical in a container with a rod-shaped volatilizing body and volatilizes it.SOLUTION: A chemical volatilizer comprises: a container that has a top surface formed with an opening and contains a chemical therein; and a rod-shaped volatilizing body which in order to suck up the chemical from the inside of the container, is inserted into the container through the opening so that a part thereof is exposed to the outside of the container. The top surface includes a first surface portion that surrounds the opening from the outside to define the opening. The upper surface of the first surface portion is inclined upward in the radially outward direction so that the volatilizing body inserted into the container can be contacted along the upper surface.SELECTED DRAWING: Figure 7B

Description

The present invention relates to a chemical volatilizer.

Conventionally, there has been known a chemical liquid volatilizer used by inserting a rod-shaped volatilizer into a container containing a chemical liquid so as to protrude from the container (see, for example, Patent Documents 1 and 2). In this type of chemical volatilizer, the chemical liquid in the container is sucked up by the volatilizer and volatilized in the external space, so that the effect such as the aroma effect of the chemical liquid is given to the external space. In many cases, the volatilizer is set to be tilted at an appropriate angle in the container in order to improve the interior.

Japanese Unexamined Patent Publication No. 2012-115364 JP-A-2016-124603

By the way, in the chemical liquid volatilizer as described above, a part of the chemical liquid sucked up by the volatilizer may leak onto the top surface of the container and adhere to it. Further, if the chemical solution leaks from the volatilizer due to environmental conditions such as ambient temperature and humidity, the chemical solution may fall from the outer peripheral edge of the top surface portion and pollute the side surface of the container and the surrounding environment.

An object of the present invention is to prevent a leaked chemical solution from contaminating the outer surface of the container and the surrounding environment in a chemical solution volatilizer that sucks up and volatilizes the chemical solution in the container by a rod-shaped volatilizer.

The chemical liquid volatilizer according to the first aspect of the present invention has a top surface portion in which an opening is formed, and has a container for accommodating the chemical liquid inside and an outer container for sucking the chemical liquid from the inside of the container. It is provided with a rod-shaped volatilizer that is inserted into the container through the opening so that the portion is exposed. The top surface portion includes a first surface portion that surrounds the opening from the outside and defines the opening. The upper surface of the first surface portion is inclined upward in the radial direction so that the volatilizer inserted in the container can come into contact with the upper surface.

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 top surface portion further includes a second surface portion that surrounds the first surface portion from the outside.

The chemical liquid volatilizer according to the third aspect of the present invention is the chemical liquid volatilizer according to the second aspect, and the upper surface of the second surface portion extends substantially horizontally or upwards outward in the radial direction. Inclined to.

The chemical liquid volatilizer according to the fourth aspect of the present invention is the chemical liquid volatilizer according to the third aspect, and the upper surface of the second surface portion has an angle of 40 ° or less with respect to the horizontal direction.

According to the present invention, in a chemical liquid volatilizer in which a chemical liquid in a container is sucked up and volatilized by a rod-shaped volatilizer, it is possible to prevent the leaked chemical liquid from polluting the outer surface of the container and the surrounding environment.

The perspective view of the chemical liquid volatilizer which concerns on one Embodiment of this invention. A cross-sectional view of a volatilizer according to an embodiment of the present invention. The perspective view of the container which concerns on one Embodiment of this invention. The vertical sectional view of the container which concerns on one Embodiment of this invention. The plan view of the cover member which concerns on one Embodiment of this invention. The bottom view of the cover member which concerns on one Embodiment of this invention. A partial vertical sectional view showing a state of contact between a volatilizer and a first surface portion according to a reference example. A partial vertical sectional view showing a state of contact points between a volatilizer and a first surface portion according to an embodiment of the present invention. A partial vertical sectional view of a cover member according to a modified example. A partial vertical sectional view of a connection portion between a cover member and a container body according to a modified example. A partial vertical sectional view of a connection portion between a cover member and a container body according to another modification. A partial vertical sectional view of a connection portion between a cover member and a container body according to still another modification.

Hereinafter, the chemical liquid volatilizer 1 according to the embodiment of the present invention will be described with reference to the drawings.

<1. Overall configuration of chemical volatilizer>
FIG. 1 shows a perspective view of a chemical liquid volatilizer 1 according to an embodiment of the present invention. As shown in the figure, the chemical liquid volatilizer 1 includes a container 2 in which the chemical liquid is stored and at least one rod-shaped volatilizer 3 inserted into the container 2. The container 2 has an opening S1 at the upper portion, and the volatilizer 3 is inserted into the container 2 through the opening S1. Unless otherwise specified, "upper" and "lower" in the present specification are defined based on the usage state shown in FIG.

The type of chemical solution used here is not particularly limited, but is typically an air freshener, a deodorant or an insect repellent, or a mixture thereof, and depending on the purpose of use, a fragrance, a deodorant component, or an insect repellent. Contains additives such as ingredients and colorants. The solvent contained in the chemical solution 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 chemical solution contains a fragrance, it is preferable to contain at least a lipophilic solvent as the solvent in order to enhance the fragrance intensity. As the hydrophilic solvent, for example, water or ethanol, or a mixture thereof can be used. As the lipophilic solvent, for example, glycol ether or isoparaffin-based solvent, or a mixture thereof can be used. In addition, the chemical solution may contain a dissolving agent in order to solubilize functional components such as fragrances, deodorant components, insect repellent components, and colorants.

The rod-shaped volatilizer 3 is inserted into the container 2 in such a manner that a part thereof protrudes from the inside of the container 2. That is, the volatilizer 3 has a sufficient length with respect to the height of the container 2, the lower end portion 3a is arranged inside the container 2, and the upper end portion 3b is exposed to the outside of the container 2. It is inserted in 2. At this time, in order to improve the interior property of the chemical liquid volatilizer 1, the volatilizer 3 is set in the container 2 in a state of being inclined in the vertical direction. Further, as shown in FIG. 1, when a plurality of volatilizers 3 are used at the same time, these volatilizers 3 are set in the container 2 so as to face various directions and extend radially.

As will be described later, the volatilizer 3 has a structure capable of sucking up a chemical solution against gravity by a capillary phenomenon. As a result, the chemical solution in the container 2 can rise from the lower end portion 3a to the upper end portion 3b along the volatilizer 3, and volatilizes (naturally evaporates) from the outer surface of the volatilizer 3 to the outer space. As a result, the chemical solution is diffused into the space around the chemical solution volatilizer 1.

The shape and material of the volatilizer 3 are not particularly limited as long as the chemical solution can be sucked up and volatilized to the outside. The volatilizer 3 typically has an elongated substantially cylindrical shape having fine pores inside, and may be made of a natural material such as rattan, or may be made of a synthetic resin such as polyethylene or polyacetal. You can also. The volatilizer 3 according to the present embodiment has the cross-sectional shape shown in FIG. In this example, the volatilizer 3 is composed of polyethylene terephthalate and polyurethane, and has a large number of amorphous micropores 31 inside. Further, a large number of grooves 32 are formed on the outer surface of the volatilizer 3. These grooves 32 extend in a streak pattern from the lower end portion 3a to the upper end portion 3b along the axial direction of the volatilizer 3. That is, the cross section of the volatilizer 3 has not a smooth contour line along the circumferential direction but a contour line having irregularities. Further, these grooves 32 are arranged at substantially equal intervals along the circumferential direction of the volatilizer 3. The chemical solution is sucked up not only along the micropores 31 but also along the groove 32 due to the capillary phenomenon. Therefore, a large amount of the chemical solution tends to adhere to the outer surface of the volatilizer 3 of the present embodiment.

<2. Container details ＞
FIG. 3 shows a perspective view of the container 2, and FIG. 4 shows a vertical sectional view of the container 2. As shown in these figures, the container 2 according to the present embodiment includes a container body 4 and a cover member 5 attached to the container body 4.

<2-1. Container body>
The container body 4 has a bottom surface portion 10. In the present embodiment, the bottom surface portion 10 has a shape in which the peripheral portion 12 thereof is recessed from the central portion 11. Therefore, when the remaining amount of the chemical solution in the container 2 becomes low, the chemical solution is accumulated in the recess of the peripheral edge portion 12 of the bottom surface portion 10. On the other hand, the lower end portion 3a of the rod-shaped volatilizer 3 is often arranged on the peripheral edge portion 12 of the bottom surface portion 10. Therefore, since the volatilizer 3 and the chemical solution are easily contacted with each other, the chemical solution can be used up to the end.

The container body 4 includes a tubular body portion 21 that rises from the bottom surface portion 10 along the outer peripheral edge thereof, a shoulder portion 22 that is continuous with the upper end of the body portion 21, and a neck portion 23 that is continuous with the upper end of the shoulder portion 22. Has. Although not limited to this, in the present embodiment, the outer shapes of the bottom surface portion 10, the body portion 21, the shoulder portion 22 and the neck portion 23 are all substantially circular and have the same centers in the plan view. The neck portion 23 is a tubular portion forming a mouth portion communicating with the opening S1 at the upper part of the container 2. Hereinafter, the neck portion 23 is referred to as a mouth portion, and the reference numeral 23 may also be attached.

The mouth portion 23 has a smaller diameter than the body portion 21. As a result, when the chemical liquid volatilizer 1 falls, the shoulder portion 22 becomes a wall, and the chemical liquid is less likely to spill through the opening S1. In particular, in the present embodiment, since the mouth portion 23 is arranged coaxially with the body portion 21, the shoulder portion 22 becomes a wall regardless of the direction in which the chemical liquid volatilizer 1 falls, and spillage of the chemical liquid can be suppressed. Further, since the cross-sectional area of the opening S1 is smaller than the cross-sectional area of the body portion 21, the amount of the chemical solution spontaneously transpired from the container 2 through the opening S1 with respect to the amount of the chemical solution contained in the container 2. The amount can be suppressed.

In the present embodiment, the shoulder portion 22 has a stepped portion, and has a lower portion 221 and an upper portion 222 located above the lower portion 221. In a plan view, the lower portion 221 is arranged so as to surround the upper portion 222 from the outside. Further, the upper end portion 231 of the mouth portion 23 is formed in a flange shape. Hereinafter, the upper end portion 231 is referred to as a flange portion, and the reference numeral 231 may also be attached.

The material of the container body 4 is not particularly limited, and in the present embodiment, it is made of glass, but other materials such as synthetic resin can be used. From the viewpoint of improving the interior property and making the remaining amount of the chemical solution visible from the outside, the container 2 is preferably formed to be transparent (including translucent).

<2-2. Cover member>
As shown in FIGS. 3 and 4, the cover member 5 is attached to the container body 4 so as to cover the mouth portion 23 from above. The cover member 5 has a top surface portion 50, and the opening S1 of the container 2 is formed in the top surface portion 50. FIG. 5 is a plan view of the cover member 5, and FIG. 6 is a bottom view of the cover member 5. Note that FIG. 4 corresponds to the C1-C1 sectional view of FIG. 5 and the C2-C2 sectional view of FIG. The material of the cover member 5 is not particularly limited, and in the present embodiment, it is made of synthetic resin, particularly polypropylene, but other materials such as wood can be used.

The top surface portion 50 includes a first surface portion 51 that surrounds the opening S1 from the outside and defines the opening S1, and a second surface portion 52 that surrounds the first surface portion 51 from the outside. The upper surface of the first surface portion 51 constitutes a slope that inclines upward in the radial direction. The upper surface of the first surface portion 51 is linear in a vertical cross-sectional view. The upper surface of the second surface portion 52 extends substantially in the horizontal direction. In the description of the present embodiment, the "diameter direction" and the "circumferential direction" are defined with reference to an axis extending in the vertical direction through the center of the opening S1 unless otherwise specified. In the present embodiment, the opening S1 is substantially circular, and the outer shapes of the first surface portion 51 and the second surface portion 52 are also substantially circular in a plan view. Further, in a plan view, the centers of the outer shapes of the opening S1, the first surface portion 51, and the second surface portion 52 all overlap with the central axis of the mouth portion 23.

Further, the cover member 5 has a tubular wall portion 53 extending downward from the lower surface of the first surface portion 51. The wall portion 53 extends downward from the inner peripheral edge portion 501 defining the opening S1 in the first surface portion 51 along the circumferential direction. In the present embodiment, the outer shape of the wall portion 53 is also substantially circular in a plan view, and the center coincides with the opening S1. The outer diameter of the wall portion 53 is slightly smaller than the inner diameter of the mouth portion 23 of the container body 4. Therefore, the wall portion 53 is inserted into the mouth portion 23 while being in contact with the inner surface of the mouth portion 23 of the container body 4 or at a slight distance from the inner surface. The space inside the wall portion 53 communicates with the opening S1, and the volatilizer 3 is inserted into the space.

The inner peripheral edge portion 501 of the first surface portion 51 is located radially inward with respect to the upper end portion 231 of the mouth portion 23. The wall portion 53 includes a first portion 531 extending downward from the inner peripheral edge portion 501 along the inner surface of the mouth portion 23, and a second portion 532 extending further downward from the lower end portion of the first portion 531. As shown in FIG. 4, the first portion 531 is in contact with or almost in contact with the inner surface of the container body 4 (inner surface of the mouth portion 23), but the second portion 532 is from the inner surface of the container body 4. It is separated to some extent. In the present embodiment, both the first portion 531 and the second portion 532 extend substantially in a straight line in the vertical direction. However, since the inner surface of the container body 4 is radially outwardly separated from the wall portion 53 at the position of the shoulder portion 22, the gap S2 between the second portion 532 and the inner surface of the container body 4 is first. It is larger than the gap between the portion 531 and the inner surface of the container body 4. Further, in the present embodiment, since the outer surface of the second portion 532 goes inward in the radial direction as it goes downward, the gap S2 becomes larger than the gap between the first portion 531 and the inner surface of the container body 4. The gap S2 gradually increases toward the bottom.

Further, the cover member 5 has a plurality of claw portions 54 extending downward from the lower surface of the top surface portion 50. These claw portions 54 are arranged on the lower surface of the top surface portion 50 at predetermined intervals along the circumferential direction while being spaced radially outward from the wall portion 53. Although not limited to this, the claw portions 54 are preferably arranged at equal intervals along the circumferential direction. Each claw portion 54 includes a thin plate-shaped protruding piece 541 extending downward from the lower surface of the top surface portion 50, and a hooking portion 542 that is continuous with the lower end portion of the protruding piece 541 and bulges inward in the radial direction from the protruding piece 541. Has. When the cover member 5 is attached to the container body 4, the mouth portion 23 of the container body 4 is inserted between the wall portion 53 and the claw portion 54. At this time, the hook portion 542 gets over the flange portion 231 of the mouth portion 23 due to the elastic deformation of the protruding piece 541. After that, by engaging the hook portion 542 and the flange portion 231, the connected state of the cover member 5 and the container body 4 is maintained unless a strong external force is applied, and both members 5 and 4 are unintentionally disengaged. There is no. On the other hand, the cover member 5 can be removed from the container body 4 by intentionally applying a force in the vertical direction. The cover member 5 and the container body 4 are detachable.

Further, the cover member 5 has a tubular outer peripheral wall portion 55 extending downward from the peripheral edge portion of the top surface portion 50. When the cover member 5 is attached to the container body 4, the lower end of the outer peripheral wall portion 55 comes into contact with the upper surface of the lower portion 221 of the shoulder portion 22 of the container body 4. In the present embodiment, the top surface portion 50 and the body portion 21 of the cover member 5 have substantially the same outer shape in a plan view, and the container 2 has a cylindrical shape as a whole.

The upper surface of the first surface portion 51 of the top surface portion 50 is inclined upward in the radial direction at an angle at which the volatilizer 3 inserted in the container 2 can be contacted along the upper surface of the first surface portion 51. are doing. In other words, the first surface portion 51 can make linear contact with the volatilizer 3 in a vertical cross-sectional view of the top surface portion 50 instead of a point. In the present embodiment, the volatilizer 3 in the state of being most inclined in the vertical vertical direction in the container 2 (hereinafter referred to as the maximum inclined state) comes into linear contact with the upper surface of the first surface portion 51 in a vertical cross-sectional view. Can be done (see FIG. 4).

By the way, a part of the chemical solution sucked up by the volatilizer 3, particularly the chemical solution sucked up along the outer surface thereof, leaks onto the top surface portion 50 and adheres to the chemical solution. If the chemical liquid leaked onto the top surface portion 50 stays on the top surface portion 50 and stains the upper surface of the top surface portion 50 in this way, the appearance is not necessarily beautiful. Further, when the container 2 falls, the chemical solution remaining on the top surface 50 may pollute the surrounding environment. Further, if the chemical solution leaks from the volatilizer 3 due to environmental conditions such as ambient temperature and humidity, the chemical solution may fall from the outer peripheral edge of the second surface portion 52 and pollute the side surface of the container 2 and the surrounding environment. Occurs. On the other hand, as described above, the first surface portion 51 capable of linearly contacting the volatilizer 3 in a vertical cross-sectional view promotes the rapid return of the chemical solution leaked onto the first surface portion 51 into the container body 4. .. Therefore, it is possible to prevent the chemical solution from contaminating the outer surface of the container 2 (including the upper surface of the top surface portion 50 and the side surface of the container 2) and the surrounding environment.

More specifically, the chemical liquid sucked up by the volatilizer 3 usually gathers on the top surface portion 50 in the vicinity of the portion where the volatilizer 3 and the first surface portion 51 come into contact with each other. When the volatilizer 3 and the first surface portion 51 are in linear contact with each other in a vertical cross-sectional view, the gap formed between the volatilizer 3 and the first surface portion 51 becomes extremely small. In such an extremely small gap, the surrounding chemical solution is easily drawn in by the capillary phenomenon, and as a result, the chemical solution opens in the opening S1 on the first surface portion 51 which is inclined downward in the radial direction due to gravity. Easy to move towards. After that, the chemical solution falls along the wall portion 53 and can be easily returned to the inside of the container body 4.

Further, in the present embodiment, the corner portion 57 at the position of the inner peripheral edge of the first surface portion 51 is chamfered in the vertical cross-sectional view and is rounded. Further, the corner portion 58 at the position of the outer peripheral edge of the first surface portion 51 is also chamfered in the vertical cross-sectional view and is rounded. These corner portions 57 and 58 face the opening S1 and extend along the circumferential direction. Then, these corner portions 57 and 58 can also promote the quick return of the chemical liquid leaked onto the top surface portion 50 into the container body 4.

Specifically, as shown in FIG. 7A, if the corner portions 57'and 58'corresponding to the corner portions 57 and 58 are not rounded in the vertical cross-sectional view and are at right angles, respectively. The spaces S3'and S4'defined by the volatilizer 3 and the portions in the vicinity of the corners 57'and 58'are widened, respectively. On the other hand, when the corner portions 57 and 58 are rounded in the vertical cross-sectional view as in the present embodiment, as shown in FIG. 7B, they are defined by the volatilizer 3 and the portions in the vicinity of the corner portions 57 and 58, respectively. The spaces S3 and S4 to be created become narrower. In such a narrowed space S3 and S4, the chemical solution is likely to be accumulated at a high density, and as a result, a larger droplet is formed and the weight thereof is larger, so that the chemical solution is likely to fall downward.

From the viewpoint of efficiently exerting the above effects, the radius of curvature of the corner portions 57 and 58 in the vertical cross section is preferably 0.2 mm to 50 mm, more preferably 0.5 mm to 30 mm. It is more preferably 1 mm to 20 mm.

By the way, in the wide gap S2 between the wall portion 53 and the inner surface of the container body 4 described above, the chemical solution that is about to return from the top surface portion 50 to the inside of the container body 4 through the opening S1 leaks out of the container 2 again. Can be prevented. That is, if there is no wall portion 53, or if the second portion 532 of the wall portion 53 is omitted, the chemical solution that intends to return to the inside of the container body 4 through the opening S1 is indicated by an arrow A1 in FIG. There is a risk of leaking to the outside by following such a route. At this time, the chemical solution may rise along the narrow gap between the first portion 531 and the inner surface of the container body 4 due to the capillary phenomenon, and then easily along the mouth 23 and the shoulder 22 of the container body 4. Can leak to the outside. In particular, when the gap between the upper end portion 231 of the mouth portion 23 and the top surface portion 50 is narrow, or when the gap between the outer surface of the mouth portion 23 and the claw portion 54 is narrow, this problem can be promoted. However, in the present embodiment, the presence of the above gap S2 can prevent the chemical solution from reaching the narrow gap as described here, and reduces the risk of polluting the side surface of the container 2 and the surrounding environment. To.

<3. 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 can be made. In addition, the gist of the following modified examples can be combined as appropriate.

<3-1>
In the above embodiment, the container 2 is composed of the container body 4 and the cover member 5, but the present invention is also applicable to the case where the container does not have the cover member and has only the container body. In this case, the same effect can be obtained by applying the same configuration as the configuration of the top surface portion 50 (including the first surface portion 51) of the cover member 5 described above to the container body.

<3-2>
The upper surface of the second surface portion 52 described above may not extend substantially horizontally, and may in particular may be inclined upward in the radial direction (see FIG. 8). However, from the viewpoint of ensuring the interior property, it is preferable that the upper surface of the second surface portion 52 extends substantially horizontally. From this point of view, the upper surface of the second surface portion 52 preferably has an angle of 40 ° or less, more preferably 35 ° or less, and an angle of 30 ° or less with respect to the horizontal direction. It is more preferable to make an angle of 25 ° or less, further preferably to make an angle of 20 ° or less, further preferably to make an angle of 15 ° or less, further to make an angle of 10 ° or less. preferable. If the upper surface of the second surface portion 52 is substantially horizontal or close to horizontal, the chemical solution may fall from the outer peripheral edge of the second surface portion 52 and pollute the side surface of the container 2 and the surrounding environment. .. However, even if the volatilizer 3 comes into contact along the upper surface of the first surface 51, and the rounded corners 57 and 58 facilitate the radial inward movement of the drug solution. Even if the upper surface of the second surface portion 52 is substantially horizontal or is brought close to horizontal, the above problems can be sufficiently avoided.

<3-3>
In the above embodiment, the wall portion 53 can be omitted (see FIG. 9A). Even in such a case, if the inner peripheral edge portion 501 of the top surface portion 50 of the cover member 5 is located radially inward from the upper end portion 231 of the mouth portion 23, the container body 4 and the cover member 5 It is possible to prevent the chemical solution from leaking to the outside through the gap.

Further, the length of the wall portion 53 can be adjusted in various ways, and for example, the second portion 532 can be omitted (see FIG. 9B). In this case, in order for the chemical solution to leak to the outside through the gap between the container body 4 and the cover member 5, the chemical solution rises against gravity between the outer surface of the first portion 531 and the inner surface of the mouth portion 23. There is a need to. Therefore, although it is inferior in the case of the above embodiment, it is possible to prevent the chemical solution from leaking to the outside even in such a case.

Further, when the mouth portion 23 of the container body 4 is formed of a flat top surface portion instead of a tubular shape, the wall portion 53 may be omitted and the first surface portion 51 may be inserted into the mouth portion 23 ( See FIG. 9C). Even in such a case, when the lower end portion of the first surface portion 51 is separated from the inner surface of the container body 4, the chemical solution is prevented from leaking to the outside through the gap between the container body 4 and the cover member 5. It can be suppressed. In the example of FIG. 9C, the lower end portion of the first surface portion 51 extends below the lower surface of the mouth portion 23 which is the top surface portion.

<3-4>
At least one of the corners 57 and 58 may not be rounded in vertical cross-sectional view.

1 Chemical volatilizer 2 Container 3 Volatilizer 4 Container body 5 Cover member 50 Top surface 51 First surface 52 Second surface S1 Opening

Claims (4)

It has a top surface on which an opening is formed, and a container for storing chemicals inside.
In order to suck up the chemical solution from the inside of the container, a rod-shaped volatilizer inserted into the container through the opening so that a part thereof is exposed to the outside of the container is provided.
The top surface portion includes a first surface portion that surrounds the opening from the outside and defines the opening.
The upper surface of the first surface portion is inclined upward in the radial direction so that the volatilizer inserted in the container can be contacted along the upper surface.
Chemical volatilizer. The top surface portion further includes a second surface portion that surrounds the first surface portion from the outside.
The chemical volatilizer according to claim 1. The upper surface of the second surface portion extends substantially horizontally or is inclined upward in the radial direction.
The chemical volatilizer according to claim 2. The upper surface of the second surface portion forms an angle of 40 ° or less with respect to the horizontal direction.
The chemical volatilizer according to claim 3.